The utility model belongs to the field of tape winding equipment, in particular to an automatic tape winding device.

The utility model belongs to the field of tape winding equipment, in particular to an automatic tape winding device.

Background technique:

With the continuous reduction of vehicle costs and the continuous improvement of quality requirements, automotive wiring harnesses, as one of the auto parts, have increasingly strong requirements for reducing production costs and improving product quality. Winding tape is an important process in the production of automotive wiring harnesses, and its efficiency and quality greatly affect the manufacturing cost of wiring harnesses.

Tape winding equipment on the market is used for this.

As a key component in various types of tape automatic winding equipment, the tape winding mechanism is mainly used to wind tape on the target object. The target object can be wire, plastic tube, rubber tube, metal tube, etc. The bandage material with certain adhesive force can be made of different materials such as PVC, cloth base, fluff, etc. In the existing tape winding equipment in the market, the tape winding mechanism cannot automatically bond the target object at the starting point of winding, and needs to be manually pre-wrapped and bonded. Cut and glue. In the production of wire harness products, the above problems seriously affect the production efficiency, and the stability of product quality cannot be guaranteed, which makes the production process of automobile wiring harness seriously lag behind the automation degree of vehicle production.

Technical implementation elements:

The purpose of this utility model is to solve the above-mentioned problems, and provides a fully automatic tape winding device with automatic bonding at the starting point of the tape winding and automatic cutting and bonding at the end point of the tape winding.

The present invention adopts the following technical solutions to realize, but it should be pointed out that the technical features in the following technical solutions can be combined under the condition that there is no conflict with each other, which does not constitute a limitation.

The fully automatic tape winding device includes a frame, a rotating body, a card slot, a first elastic piece and a second elastic piece; the rotating body is installed on the frame and can be rotated circumferentially; The slot hole in the rotation center; a non-closed card slot with one end open is installed on the rotating body, and the opening position of the card slot coincides with the opening position of the rotating body, forming a channel for the wound body to enter the rotation center of the rotating body; the card slot There is also a gap for the tape to enter; the free end of the first elastic piece is located inside the slot, and cooperates with the slot to form a clamping space that coincides with the rotation center of the rotating body, and the elastic direction of the first elastic piece is The direction in which the clamping space is reduced; one end of the second elastic sheet is fixed at the open end of the card slot, and is used to prevent the wound body from passing through the free end of the second elastic sheet during the process of entering the card slot from the opening. Apply pressure to keep the body being wound against the surface of another object.

Preferably, the card slot is U-shaped, and the bottom is provided with a slit for the adhesive tape to enter; the second elastic piece is strip-shaped, and one end is fixed on one side of the opening of the card slot and spans the U-shaped opening; One end of the first elastic piece is hinged on the other side of the opening of the card slot, and the upper surface of the free end is in a parabolic shape with the opening facing downward;

Further, one side of the rotating body is provided with a mandrel for installing the tape roll, and a guide shaft for guiding the tape on the tape roll into the gap is fixed near the bottom gap of the card slot.

Preferably, a cutter arm and a cutter are also provided on the path after the tape is wound and exits the card slot. The movement direction of the cutter arm is from the base material side of the tape to the adhesive side. The direction of the knife edge is consistent with the movement direction of the cutter arm.

Further, a third elastic piece is also fixed on the cutter arm, and the elastic part of the third elastic piece is located between the cutter and the wound body, and is used for cutting off one end but not yet bonded to the cutter arm during the movement of the cutter arm. The tape section on the wound body is pressed to the surface of the wound body.

Further, the free end of the third elastic piece is located outside the tape detachment point on the winding body.

Further, the cutter arm is a swing arm, and one end is hinged to the frame.

Preferably, the elastic piece is a resilient structural member, which is made of elastic material and is bent and rebounded around its fixed end, or is made of rigid material and is driven by an external spring to rotate and rebound around an axis.

Preferably, the rotating body is installed in the shaft hole of the frame, and is concentrically matched with the shaft hole.

The beneficial effects of adopting the above technical solutions: in the tape winding mechanism, because the utility model solves the problem that the starting point cannot be automatically wound with the tape and the end point cannot be automatically cut off the tape, and at the same time, a process method for fully automatic tape winding is studied, so that the The whole process of wrapping the tape realizes automatic production, which effectively improves the production efficiency and reduces the defect rate caused by manual operation. The utility model has been applied to the robot automatic tape winding equipment in the automobile wire harness processing industry and the household wire harness processing industry. The production site runs stably, the starting point winding of the wire harness and the end point cutting and bonding effect are good, which fully conforms to the wire harness production process. quality requirements. The utility model reduces the production cost while improving the product quality, effectively promotes the automatic upgrading and transformation of the wire harness manufacturing enterprises, and significantly improves the overall manufacturing level in the production field of the automobile wiring harness and the household wiring harness. Other specific technical effects of the present invention will be described through specific embodiments.

Description of drawings

1 is a schematic front view of a basic structure of a fully automatic tape winding device of the present invention;

2 is a schematic front view of another preferred structure of the fully automatic tape winding device in the utility model;

Fig. 3 is another preferred structure reverse schematic diagram of the automatic tape winding device in the utility model;

Fig. 4 is the schematic diagram of the first state in the tape winding process;

Fig. 5 is the schematic diagram of the 2nd state in the tape winding process;

Fig. 6 is the schematic diagram of the 3rd state in the tape winding process;

Fig. 7 is the enlarged schematic diagram of Fig. 6;

Fig. 8 is the schematic diagram of the 4th state in the tape winding process;

Fig. 9 is the enlarged schematic diagram of Fig. 8;

Fig. 10 is the schematic diagram of the 5th state in the tape winding process;

Figure 11 is an enlarged schematic view of Figure 10;

Fig. 12 is the schematic diagram of the 6th state in the tape winding process;

Figure 13 is an enlarged schematic view of Figure 12;

Fig. 14 is the schematic diagram of the 7th state in the tape winding process;

Figure 15 is an enlarged schematic view of Figure 14;

Fig. 16 is the schematic diagram of the 8th state in the tape winding process;

Fig. 17 is the schematic diagram of the 9th state in the tape winding process;

Figure 18 is an enlarged schematic view of Figure 17;

Fig. 19 is the schematic diagram of the 10th state in the tape winding process;

Figure 20 is an enlarged schematic view of Figure 19;

FIG. 21 is a schematic diagram of the eleventh state during the tape winding process.

Reference symbols in the figure: cutter swing arm 1, support 2, third elastic piece 3, blade 4, wrapped body 5, second elastic piece 6, card slot 7, tape roll 8, tape 9, guide shaft 10, rotation Body 11 , first elastic piece 12 , frame 13 .

In the figure: the direction of the arrow indicates the direction of movement or force of the corresponding component. In order to clearly show the shape of the tape at different stages of the whole process, some pictures will leave a gap between the wound body and the card slot. However, this is only to enable those skilled in the art to understand the principle of the present invention more clearly, and the two are closely attached during actual use.

Detailed ways

The present utility model is further described below through the accompanying drawings, so that those skilled in the art can better understand the essence of the present utility model. If there is no conflict between the technical features in the following technical solutions, they can be combined with each other, which does not constitute a limitation to the present invention.

As shown in Figure 1, it is a basic structure of the fully automatic tape winding device of the present invention. The device includes a frame 13 , a rotating body 11 , a card slot 7 , a first elastic piece 12 and a second elastic piece 6 . The frame 13 serves as the structural support of the whole device, and the rotating body 11 is mounted on the frame 13 and can rotate in the circumferential direction. The frame 13 can be made of a metal shell or other materials, and is installed in the tape winding equipment through fasteners. The frame 13 has a shaft hole and a mandrel, and the rotating body 11 is installed on the shaft hole. Of course, the frame 13 can also adopt other deformations, for example, it is only a support shaft, and the rotating body 11 is directly connected to the shaft body.

The body to be wound 5 is a winding object, which can be a wire, a plastic tube, a rubber tube, a metal tube, etc., and is usually fixed on a fixture or manually held. The body to be wound 5 enters the rotation center of the rotating body 11 in advance when the winding operation is required, and exits the rotating body 11 after the winding operation is completed. The rotary body 11 is usually a non-closed disc, which is driven to rotate by a deceleration motor, or manually driven to rotate, and rotates around the body to be wound 5 as the center. Of course, the disk can also be replaced with other shapes, but since the body to be wound has to enter its center of rotation, the rotating body 11 needs to be radially provided with a slot to reach its center of rotation. The rotation of the bottom of the rotating body 11 can also be realized by means of a plane bearing or the like. The upper surface of the rotating body 11 is provided with a non-closed card slot 7 with one end open, and the opening position of the card slot 7 coincides with the opening position of the rotating body 11 , forming a channel for the wound body 5 to enter the rotation center of the rotating body 11 . A slot for the adhesive tape 9 to pass through is also opened on the card slot 7 .

The first elastic piece 12, the second elastic piece 6, and the third elastic piece 3 in the present invention are all resilient structural parts, which are made of elastic materials and bend and rebound around their fixed ends, or are made of rigid materials, one end of which is resilient. It is hinged and fixed by the shaft, and is driven by an external spring to rotate and rebound around the shaft.

The first elastic piece 12 mainly acts on the tape 9 , and provides pressure on the tape 9 when the body to be wound 5 enters the slot 7 , so that the tape 9 can fit the body to be wound 5 in real time. Secondly, when the body to be wound 5 is wound, the first elastic sheet 12 can also provide a certain pressure to act on the tape 9 to make the tape wound around the body to be wound 5 fit better. The specific setting method is as follows: the free end of the first elastic piece 12 (ie the end that can be displaced when subjected to external pressing force) is located inside the slot 7, and the upper surface is on the aforementioned passage for the wound body 5 to enter the rotation center. In addition, the first elastic piece 12 cooperates with the slot 7 to form a clamping space that coincides with the rotation center of the rotating body 11 , and the elastic force of the first elastic piece 12 is a direction that reduces the clamping space. At this time, if the wrapped body 5 enters the clamping space, the outer surface of the wrapped body can be tightly attached to the elastic sheet and the slot under the force of the first elastic sheet 12, so that the adhesive tape is more firmly bonded during the winding process.

The second elastic piece 6 mainly acts on the body to be wound 5 , and makes the body to be wound 5 press against the tape 9 during the process of the body to be wound 5 entering the slot 7 . Next, when the wound body 5 exits the card slot 7, act on the tape 9, so that the tape 9 is restrained on the first elastic piece 12, and the adhesive side of the tape 9 is kept facing upward, so as to prepare for the next operation. The specific setting method is as follows: one end of the second elastic sheet 6 is fixed to the open end of the card slot 7, and the free end of the second elastic sheet 6 exerts downward pressure due to elastic deformation during the process of the wound body entering the interior of the card slot 7 from the opening. , to make the body to be wound close to the upper end of the first elastic sheet 12 , and to adhere the tape pre-laid on the surface to the body to be wound. Of course, the lower part of the entrance of the card slot 7 does not necessarily cooperate with the upper surface of the first elastic piece 12, and the tape can also be directly laid on the surface of the card slot 7 or the surface of other components, and the surface is pressed by the wound body into the card slot. An initial wrap of the tape is achieved.

The shapes of the card slot 7 , the first elastic piece 12 and the second elastic piece 6 can be adjusted as long as the adhesive tape can be adhered. However, a better method is shown in FIG. 1: the card slot 7 is U-shaped, and the bottom is provided with a gap for the tape to enter; the second elastic piece 6 is in the shape of a strip, and one end is fixed on the side of the opening of the card slot 7, and the horizontal It spans and basically covers the U-shaped opening; one end of the first elastic piece 12 is hinged to the other side of the opening of the card slot 7, and the upper surface of its free end is a parabola with the opening facing downward. The inclined surface on the left side of the first elastic piece 12 extends to the bottom of the second elastic piece 6 , and the right inclined surface forms a clamping space with the bottom and upper right of the card slot 7 , and the space is slightly smaller than the body to be wound, so that it can always be wound during winding. under pressure.

The tape for winding can be in the form of unwinding the tape roll 8 , which is a wound product of the tape 9 and can freely rotate around the mandrel of the rotating body 11 . The tape 9 generally refers to a band-shaped wrapping material with adhesive on the surface and a certain adhesive force, that is, the shape of the tape roll 8 after being unwound, and its material can be PVC, cloth base, fluff, etc. As shown in FIG. 1 , two mandrels are arranged on the rotating body 11 , and the tape roll 8 and the guide shaft 10 are respectively mounted on the mandrels. A card slot 7 is installed at the central opening of the rotating body 11 . The guide shaft 10 can be made of a material with a low coefficient of friction, can freely rotate around the core axis of the rotating body 11 , and is mainly used for guiding the tape 9 . Of course, if the position of the tape roll 8 is reasonable, the guide shaft 10 may not be needed.

The automatic tape winding process based on the device, the steps are as follows: untie the tape on the tape roll, and make it pass through the card slot 7 through the gap at the bottom of the card slot 7 and its end protrudes from the open end of the card slot 7; The winding body 5 is placed at the rotation center of the rotating body 11 through the channel opened on the rotating body 11 and the card slot 7, and is placed in advance by the elastic force of the first elastic sheet 12 and the second elastic sheet 6 during the process of entering the card slot 7. The adhesive tape is adhered to the surface of the wound body 5; the rotating body 11 is driven to rotate, and the tape is continuously wound on the wound body 5; Cut the tape to complete the winding process. In the above process, after the end of the tape protrudes from the open end of the card slot 7, in the process of the subsequent wound body 5 entering the card slot 7, this section of the tape sticks out to keep the glue surface facing outwards. After the rotating body 11 rotates, , to ensure reliable bonding of the starting point.

As shown in FIG. 2 , considering the problem of automatic cutting after the tape is wound, a cutter arm 1 and a cutter 4 may be provided on the path after the tape is wound and exits the card slot 7 . The cutter arm 1 shown in the figure is a swing arm, and one end is hinged to the frame 13, which can facilitate the operation of the machine. However, it is also possible to directly move the cutter 4 up and down in a direction perpendicular to the drawn tape without using a swing arm. The movement direction of the cutter arm 1 needs to be kept from the substrate surface of the tape (the side surface of the tape substrate that is not coated with glue) to the side of the glue surface. When the direction of movement is the same, the tape can be cut. The cutter 4 can be a circular or polygonal blade with a central hole, the central hole of which is installed coaxially with the mandrel of the cutter swing arm 1, and is driven to rotate by a high-speed motor to quickly cut the tape 9.

In addition, after the winding operation is completed, the wound body 5 exits the slot 7, the tape 9 is cut by the cutter 4, and there will be a small section on the wound body 5 that is cut at one end but has not yet adhered to the wound body 5. . In order to bond this tape, a third elastic piece 3 can be further fixed on the cutter arm 1 . The third elastic piece 3 can be installed through a support, the support 2 is installed on the cutter swing arm 1 through a fastener, and there is a mandrel on it, and the third elastic piece 3 is installed on the mandrel through a fastener. The length and position of the elastic part of the third elastic piece 3 need to be adjusted. Generally, the position of the elastic part needs to be set between the cutter 4 and the wrapped body 5, so as to cut off one end of the elastic part during the movement of the cutter arm 1. However, the tape segment that has not yet been adhered to the body to be wound 5 is pressed to the surface of the body to be wound. A more preferred way is that the end point of the free end (the unfixed end) of the third elastic piece 3 is located outside the tape detachment point on the wrapped body 5, so that the sweeping range of the third elastic piece 3 can cover the entire unsticked strip. Adhesive tape. However, it should be pointed out that the method of providing the third elastic piece for supplementary bonding is more suitable for the situation where the wound body is fixed on the fixture and is automatically controlled by a mechanical device, and it is difficult to control the distance it is pulled out in the manual hand-held state. .

The working process of the utility model is as follows:

As shown in FIG. 4 , when the wound body 5 enters the opening of the slot 7 , the second elastic sheet 6 is squeezed by the wound body 5 , generating a reaction force on the wound body 5 , thereby pressing the wound body 5 on the tape 9 At the same time, the first elastic piece 12 is also squeezed by the winding body 5 to generate a reaction force to the winding body 5, so that the glue surface of the tape 9 is close to the winding body 5.

As shown in FIG. 5 , when the wound body 5 enters the middle position of the slot 7 , the first elastic piece 12 is continuously squeezed by the wound body 5 , resulting in a greater reaction force to the wound body 5 . The wrapped body 5 is more closely fitted, and at this time, the tape 9 wraps about a quarter of the circumference of the wrapped body 5 . At present, the wound body 5 has been separated from the second elastic piece 6, and the second elastic piece 6 bounces back to the initial position.

As shown in FIG. 6 , when the wound body 5 enters the bottom of the card slot 7 , that is, at the center of rotation of the rotating body 11 , the first elastic piece 12 continues to be squeezed by the wound body 5 and maintains a reaction to the wound body 5 . force to keep the pressing tape 9 on the body 5 to be wound. As shown in FIG. 7 , which is a partial enlarged view of the current state of the adhesive tape 9 , at this time, the adhesive tape 9 wraps about one-half of the circumferential surface of the body to be wound 5 .

As shown in FIG. 8 , when the rotating body 11 is driven to rotate, the tape 9 starts to wrap the wrapped body 5 . As shown in FIG. 9 , which is a partial enlarged view of the current state of the adhesive tape 9 , at this time, the circumference of the wrapped body 5 wrapped by the adhesive tape 9 is still about half of the circumference.

As shown in FIG. 10 , the rotating body 11 continues to rotate, and the tape 9 continues to wrap the wrapped body 5 . As shown in FIG. 11 , which is a partial enlarged view of the current state of the adhesive tape 9 , at this time, the circumferential surface of the adhesive tape 9 wrapping the wrapped body 5 is enlarged to about three-quarters.

As shown in FIG. 12 , the rotating body 11 continues to rotate, and the tape 9 completely wraps the entire circumference of the body 5 to be wound. As shown in Figure 13, it is a partial enlarged view of the current state of the adhesive tape 9. At this time, after the adhesive tape 9 completely wraps the circumferential surface of the wound body 5, the adhesive surface of the adhesive tape 9 is adhered to the adhesive surface, thereby ensuring that the adhesive tape 9 is in The starting point is reliably wound on the body to be wound 5, and then the continuous winding operation can be performed.

As shown in FIG. 14, it is the state of a continuous winding operation. As shown in FIG. 15 , the adhesive tape 9 has been stably and reliably adhered to the body to be wound 5 .

As shown in FIG. 16 , when the wound body 5 exits the opening of the slot 7 after the winding operation is completed, the second elastic piece 6 is pressed on the tape 9 to generate a reaction force to the tape 9 .

As shown in FIG. 17 , after the wound body 5 exits the slot 7 and reaches the specified distance from the opening of the slot 7 , the swing arm 1 of the cutter swings to the position of the tape 9 under the driving of external force, and the cutter 4 cuts the tape 9 . As shown in FIG. 18 , it is a partial enlarged view of the current state of the adhesive tape 9 . At this time, the adhesive tape 9 has been cut off, and a small piece of unbonded adhesive tape 9 is left on the wound body 5 on the left side of the cutter 4 .

As shown in Figure 19, the tape 9 on the right side of the cutter 4, under the reaction force of the second elastic piece 6, returns and is restrained on the plane of the first elastic piece 12 to prepare for the next starting point of wrapping the tape. As shown in FIG. 20, it is a partial enlarged view of the current state of the tape 9. At this time, the third elastic piece 3 is squeezed by the wound body 5, which generates a reaction force on the wound body 5, so that the unbonded tape 9 is pressed together on the wound body 5 . At this point, the tape winding operation is completed, the knife swing arm 1 returns to the initial position, and the third elastic piece 3 rebounds to the initial position, ready for the next winding operation, as shown in Figure-20.

The above-mentioned embodiment is only a preferred solution of the present invention, but is not intended to limit the present invention. Various changes and modifications can also be made by those of ordinary skill in the relevant technical field without departing from the spirit and scope of the present invention. Therefore, all technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the present invention.