Full-automatic adhesive tape winding machine head module

Abstract

The utility model discloses a full-automatic adhesive tape winding machine head module, and belongs to the field of wiring harness production automation equipment. The device comprises a rotary driving wheel assembly, a clamping jaw swing arm assembly and an automatic adhesive tape cutting mechanism which are installed on a module base. The front portion of the module base is rotationally connected with a rotating movable wheel assembly, and the adhesive tape head clamping mechanism can clamp the adhesive tape near the position to be cut. The clamping jaw swing arm assembly is located below the rotary driving wheel assembly and can move up and down and rotate around a shaft, and the adhesive tape clamping jaw assembly can clamp an adhesive tape head; the automatic adhesive tape cutting mechanism is located on the rear portion of the rotating movable wheel assembly. The adhesive tape cutter can move between the adhesive tape cutting position and the avoiding position, and the adhesive tape at the fracture can be cut off at the adhesive tape cutting position. According to the utility model, preparation, reliable pre-adhesion, continuous winding and automatic cutting ending of the adhesive tape can be automatically completed, and manual intervention is not needed in the whole process; the structure design is compact, and the wire harness can be wound to the position close to the root. Meanwhile, due to the modular design, multi-link transplantation application can be achieved.

Description

Technical Field

[0001] This utility model belongs to the field of automated equipment for wire harness production, specifically relating to a compact head module that can automatically complete tasks such as tape preparation, pre-adhesion, winding, and cutting. Background Technology

[0002] With the rapid development of new energy vehicles, the automation requirements for related wiring harness production are becoming increasingly stringent. Unlike the wiring harness design of traditional fuel vehicles (small wire diameter, multiple branches, complex structure, etc., which are not conducive to the implementation of automated production), the wiring harness design of new energy vehicles is more inclined towards and more conducive to the realization of fully automated production lines. However, traditional semi-automatic tape winding equipment is struggling to meet the needs of fully automated processes (such as robotic tape wrapping, tape winding integrated into automated production lines). Based on common knowledge in the art, the tape winding process includes actions such as tape pre-bonding, continuous winding, tape cutting, and tape finishing. Existing semi-automatic tape winding equipment only performs the continuous winding stage relatively well, while tape pre-bonding and tape finishing still require manual intervention from operators. This makes tape winding a bottleneck in the fully automated production of wiring harnesses, because for a considerable number of new energy wiring harnesses, the upstream and downstream processes of tape winding have already achieved well-automated production cycles, but the tape winding stage (continuous winding) has failed to effectively connect the upstream and downstream processes.

[0003] Some equipment manufacturers in the industry have attempted to develop equipment modules that can automatically complete tape preparation, pre-adhesion, continuous winding, and cutting. From the perspective of individual functions, they do achieve a fully automated process. However, the existing technology is merely a simple patchwork design of various functional structures; it is a non-standard, non-modular design. While it works fine in some simple applications, the main problems are: 1. The structural design is bulky, occupying excessive equipment space. In particular, the lateral dimensions (static and dynamic) are too large, encroaching on too much tape winding space, resulting in excessive distances between the tape winding start and end points and the line harness connectors or intermediate branch nodes, failing to meet design requirements; 2. This non-standard, non-modular design structure is difficult to transplant and apply, lacking versatility. Changing the application requires a complete redesign and layout; 3. Due to the bulky structural design, the weight also increases significantly. In robotic tape wrapping applications, larger robotic arms are needed for support, increasing application costs.

[0004] Therefore, the industry urgently needs a tape wrapping machine that is compact in structure, stable in performance, and can automatically complete the preparation, wrapping, and cutting of tape. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects in the prior art and provide a fully automatic tape wrapping head module.

[0006] The specific technical solution adopted in this utility model is as follows:

[0007] This utility model provides a fully automatic tape wrapping head module, including a rotating wheel assembly, a gripper swing arm assembly and an automatic tape cutting mechanism installed on the module base;

[0008] The front of the module base is rotatably connected to a rotating wheel assembly, and the front end is provided with an opening for the wire harness to enter the interior of the rotating wheel assembly; the rotating wheel assembly can wrap the tape around the outer periphery of the wire harness by rotating, and the tape head clamping mechanism can clamp the tape near the position to be cut;

[0009] The gripper arm assembly is located below the rotating wheel assembly and can move up and down and rotate around the axis. The tape gripper assembly can hold the tape head.

[0010] The automatic tape cutting mechanism is located at the rear of the rotating wheel assembly; the tape cutter can move between the tape cutting position and the avoidance position, and can cut the tape at the break point at the tape cutting position.

[0011] Preferably, the rotating wheel assembly includes a rotating wheel, a film roll fixing shaft, a tape guide roller, a tape sway guide roller, a counterweight, and a tape head clamping mechanism.

[0012] The driving wheel has an arc-shaped structure and transmission teeth on its outer circumference; the film roll fixing shaft is fixed to the upper part of the driving wheel through the film roll fixing bracket, and is used to coaxially fix the tape roll and enable the tape roll to rotate together along the central axis; the tape guide roller and the tape sway guide roller are both fixed to the upper part of the driving wheel, and the tape unwound on the tape roll can be guided by the tape guide roller and the tape sway guide roller in sequence to be in a vertical downward state with the adhesive surface of the tape facing the opening of the module base; the counterweight is located at the lower part of the driving wheel and is used to balance the gravity of the upper part of the driving wheel;

[0013] The tape clamping mechanism includes a driven tape clamping arm, a clamping arm synchronizing gear, a clamping arm guide rail, and a driving tape clamping arm. The clamping arm guide rail is fixed to the upper part of the driving wheel. The driven tape clamping arm and the driving tape clamping arm are slidably connected to the clamping arm guide rail via sliders. Both the driven tape clamping arm and the driving tape clamping arm have toothed structures on their inner sides, which mesh with the clamping arm synchronizing gear to couple into a linkage structure. The output end of the tape clamping drive cylinder fixed on the module base drives the driving tape clamping arm to slide along the clamping arm guide rail, causing the clamping arm synchronizing gear to mesh and rotate, which in turn drives the driven tape clamping arm to slide along the clamping arm guide rail, causing the driven tape clamping arm and the driving tape clamping arm to move closer to each other and perform a clamping motion towards each other. The driven tape clamping arm and the driving tape clamping arm are located below the tape sway guide roller and can clamp the vertically unwound tape from both sides.

[0014] Preferably, the arc-shaped opening of the moving wheel is the same size as the front opening of the module base, and the two openings coincide in the initial state; the moving wheel is connected to the moving wheel drive motor through the moving wheel drive synchronous belt, and the moving wheel drive motor can make the moving wheel rotate at the front of the module base, driving the tape roll to move in an arc.

[0015] Preferably, the belt sway guide roller is fixed to the belt sway bracket seat by a belt sway bracket with flexible sway, so that the belt sway guide roller can sway and rotate to adapt to the conveying direction of the unwound belt; the belt sway bracket seat is fixed to the upper part of the drive wheel.

[0016] Preferably, one end of the drive-side tape clamping arm is fixed to the tape clamping return spring, and the other end of the tape clamping return spring is fixed to the moving wheel located outside the drive-side tape clamping arm. This allows the drive-side tape clamping arm to stretch the tape clamping return spring when it performs clamping motion, thereby causing the driven-side tape clamping arm and the drive-side tape clamping arm to separate and return to their original positions under the action of elastic force.

[0017] Preferably, the gripper swing arm assembly includes a tape gripper assembly, a tape gripper cylinder, a gripper swing arm, a gripper swing arm base, a gripper swing arm cylinder, and a gripper swing arm guide rail.

[0018] The gripper swing arm guide rail is vertically fixed on the module base. The gripper swing arm base is slidably connected to the gripper swing arm guide rail via a slider. One end of the gripper swing arm and one end of the gripper swing arm cylinder are respectively hinged to the gripper swing arm base. The other end of the gripper swing arm is equipped with a tape gripper assembly. The tape gripper assembly is located below the tape deflection guide roller and can grip or release the tape head under the drive of the tape gripper cylinder. The tape gripper cylinder is installed on the gripper swing arm. The output end of the gripper swing arm cylinder is located in the middle of the gripper swing arm and is used to drive the gripper swing arm to swing up and down with the hinge point as the fulcrum.

[0019] Preferably, a gripper swing arm drive motor is fixed on the module base, a gripper swing arm drive gear is installed at the output end of the gripper swing arm drive motor, a gripper swing arm drive rack is vertically provided on the gripper swing arm base, the gripper swing arm drive gear is meshed with the gripper swing arm drive rack, and the gripper swing arm drive motor can drive the gripper swing arm base to slide up and down along the gripper swing arm guide rail.

[0020] Preferably, the tape gripper assembly includes a driven tape gripper and a driving tape gripper; both the driven tape gripper and the driving tape gripper have toothed structures that mesh with each other; the lower end of the driving tape gripper is connected to the output shaft of the tape gripper cylinder, and the tape gripper cylinder enables the driven tape gripper and the driving tape gripper to clamp or release under meshing transmission.

[0021] Preferably, the automatic tape cutting mechanism includes a tape cutter holder, a tape cutter guide rail, and a tape cutter.

[0022] The tape cutter guide rail is arranged axially parallel to the module base. The tape cutter holder is slidably connected to the tape cutter guide rail via a slider. A tape cutter is fixed on the tape cutter holder. When the tape cutter holder moves the tape cutter to the tape cutting position, the tape cutter can cut the tape located between the tape head clamping mechanism and the tape gripper assembly.

[0023] Compared with the prior art, this utility model has the following advantages:

[0024] 1. It can automatically complete the preparation, reliable pre-adhesion, continuous winding, and automatic cutting and finishing of the tape without the need for manual intervention.

[0025] 2. The structure is compact and can be wound to a position close to the root of the wire harness. Furthermore, the modular design allows for application in multiple stages. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the device of this utility model;

[0027] Figure 2 yes Figure 1 A structural diagram from another angle;

[0028] Figure 3 This is a schematic diagram of the rotating wheel assembly;

[0029] Figure 4 yes Figure 3 A structural diagram from another angle;

[0030] Figure 5 It refers to the initial state of the tape roll and tape, etc., when the head module is in its initial preparation state.

[0031] Figure 6 It describes the state of the wire harness surface when it is initially pre-adheded to the tape after the wire harness enters the winding position. It is also a relatively unreliable pre-adhesion method used in conventional technology.

[0032] Figure 7 This utility model describes a state where the pre-adhesive tape coverage angle is further increased to further ensure reliable pre-adhesion.

[0033] Figure 8 This describes the state when the tape pre-bonding is completed and continuous tape winding begins;

[0034] Figure 9 It describes the state of each part of the machine head module when it is continuously winding tape;

[0035] Figure 10 This describes the state of the tape when it is being cut and finished after continuous wrapping.

[0036] Figure 11 This describes the state of the tape swing arm assembly as it moves upward to prepare to grab the tape;

[0037] Figure 12 This describes how the tape gripper assembly, after gripping the tape, prepares to move the tape back to its initial state.

[0038] The attached figures are labeled as follows: Module base 1, Rotating wheel assembly 2, Rotating wheel 201, Film roll fixing shaft 202, Film roll fixing bracket 203, Tape guide roller 204, Tape skew guide roller 205, Tape skew bracket 206, Tape skew bracket seat 207, Counterweight block 208, Tape clamping return spring 209, Tape head clamping mechanism 210, Driven side tape clamping arm 211, Clamping arm synchronous gear 212, Clamping arm guide rail 213, Driven side tape clamping arm 214, Tape roll 3, Unrolled tape 4, Tape 4a Adhesive surface, 5 Wrapped tape, 6 Wire harness, 7 Tape gripper assembly, 7a Driven tape gripper, 7b Driven tape gripper, 8 Tape gripper cylinder, 9 Gripper arm, 10 Gripper arm base, 11 Gripper arm drive rack, 12 Gripper arm drive gear, 13 Gripper arm cylinder, 14 Gripper arm guide rail, 15 Tape cutter holder, 16 Tape cutter guide rail, 17 Tape cutter, 18 Drive wheel drive motor, 19 Drive wheel drive synchronous belt, 20 Gripper arm drive motor, 21 Tape clamping drive cylinder. Detailed Implementation

[0039] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below. Technical features in various embodiments of this utility model can be combined appropriately without conflict.

[0040] In the description of this utility model, it should be understood that when an element is considered to be "connected" to another element, it can be directly connected to the other element or indirectly connected, i.e., there is an intermediate element. Conversely, when an element is said to be "directly" connected to another element, there is no intermediate element.

[0041] In this utility model, for ease of description, ... Figure 1 The orientation of the device is shown to illustrate the positional relationship of each component, where "front" and "rear" refer to... Figure 1 The right and left sides, "above" and "below" refer to respectively. Figure 1 The upper and lower sides of the middle. Figure 1 The device shown is positioned facing forward. Figure 2 The device shown is positioned from the rear. Unless otherwise specified, the positional relationships of this utility model are described in this way.

[0042] like Figure 1 and 2 As shown, this utility model provides a fully automatic tape wrapping head module. The head module mainly includes a rotating wheel assembly 2, a gripper swing arm assembly, and an automatic tape cutting mechanism, all mounted on a module base 1. These mechanisms work together to achieve the fully automatic tape wrapping function outside the wire harness. The working process is described below.

[0043] In the device of this utility model, such as Figure 1 As shown, a rotating wheel assembly 2 is rotatably connected to the front (right side) of the module base 1, and an opening is provided at the front end (rightmost side). This opening serves as a channel, allowing the wire harness 6 to enter the rotating wheel assembly 2. In actual use, the rotating wheel assembly 2 rotates to wrap tape around the outer periphery of the wire harness 6, and the tape head clamping mechanism 210 can clamp the tape near the cutting position.

[0044] In the device of this utility model, such as Figure 1 As shown, the gripper arm assembly is located below the rotating wheel assembly 2, and can move up and down and rotate around the axis. The tape gripper assembly 7 can hold the tape head.

[0045] In the device of this utility model, such as Figure 1 As shown, the automatic tape cutting mechanism is located at the rear of the rotating wheel assembly 2. The tape cutter 17 can move between a tape cutting position and a clearance position, and at the tape cutting position, the tape cutter 17 can cut the tape at the break point.

[0046] In theory, the structural form of the module base 1, the rotating wheel assembly 2, the gripper swing arm assembly, and the automatic tape cutting mechanism is not limited, as long as they can achieve the functions described above.

[0047] The preferred implementations of each mechanism will now be described in detail with reference to the accompanying drawings and through embodiments.

[0048] The specific form of the module base 1 described above can be adjusted according to actual needs. As the base of the entire mechanism, the module base 1 primarily provides installation positions for various functional components. Considering aesthetics and convenience, the module base 1 can be designed as a square-like plate structure, gradually tapering inwards at the front and having an opening at the front end along a vertical line. This opening serves as a channel for the wire harness to enter and exit. The front of the module base 1, connected to the opening, also has a circular hollow section. This circular hollow section is used to install the rotating wheel assembly 2, allowing the rotating wheel assembly 2 to rotate within the space of the circular hollow section. The main structures of the gripper swing arm assembly and the automatic tape cutting mechanism are both mounted on one side of the front of the module base 1.

[0049] In a preferred embodiment of this utility model, such as Figure 3 As shown, the rotating wheel assembly 2 is located at the front of the module base 1 and is also an open structure, allowing for rotational movement. The rotating wheel assembly 2 mainly includes a rotating wheel 201, a film roll fixing shaft 202, a tape guide roller 204, a tape sway guide roller 205, a counterweight 208, and a tape head clamping mechanism 210.

[0050] Specifically, the driving wheel 201 has an arc-shaped structure with transmission teeth on its outer circumference. For example... Figure 1 As shown, the arc-shaped opening of the moving wheel 201 is the same size as the front opening of the module base 1, and the two openings coincide in the initial state. Figure 2 As shown, the moving wheel 201 is connected to the moving wheel drive motor 18 via the moving wheel drive synchronous belt 19, forming a belt drive; the moving wheel drive motor 18 enables the moving wheel 201 to rotate at the front of the module base 1, thereby driving the tape roll 3 to move in an arc on the front of the module base 1.

[0051] like Figure 3As shown, the film fixing shaft 202 is fixed to the upper part of the moving wheel 201 via the film fixing bracket 203. The film fixing shaft 202 can coaxially fix the tape roll 3 and allow the tape roll 3 to rotate together with the film fixing shaft 202 along the central axis. The tape guide roller 204 and the tape skew guide roller 205 are both fixed to the upper part of the moving wheel 201, and both are located below the film fixing shaft 202. Figure 1 and 5 As shown, the unwound tape 4 from the tape roll 3 is guided vertically downwards by the tape guide roller 204 and the tape sway guide roller 205, with the adhesive surface 4a of the tape facing the opening of the module base 1. The counterweight 208 is located below the moving wheel 201 and can balance the gravity of the various mechanisms above the moving wheel 201, facilitating the rotation of the moving wheel 201 and its return to its initial state.

[0052] like Figure 3 As shown, the belt sway guide roller 205 is fixed to the belt sway bracket seat 207 via the belt sway bracket 206, and the belt sway bracket seat 207 is fixed to the upper part of the moving wheel 201. The belt sway bracket 206 has a flexible deflection amount, which allows the belt sway guide roller 205 to sway and rotate in actual use to adapt to the conveying direction of the unwound belt 4, so that the belt sway guide roller 205 always has a guiding effect on the belt.

[0053] In addition to conventional functional components such as the film roll fixing shaft 202, film roll fixing bracket 203, tape guide roller 204, tape sway guide roller 205, tape sway bracket 206, tape sway bracket seat 207, and counterweight 208, the rotating wheel assembly 2 of this utility model also includes a tape head clamping mechanism 210. The function of the tape head clamping mechanism 210 is to temporarily maintain the posture of the tape near the break point before the tape is cut, after a tape winding process is completed, to prevent the tape head from retracting or drifting after the tape is cut, so that the subsequent tape clamping mechanism can reliably clamp the tape head, preparing the tape for the next process. In existing conventional technology, the tape head clamping mechanism is externally located on the rotating wheel assembly. Before cutting the tape, the external mechanism first moves to the tape holding position to temporarily clamp the tape. Because of the interference between the external clamping mechanism and the rotating wheel assembly's rotation range, the external clamping mechanism needs to exit its rotation range in advance during the winding process. Therefore, the space occupied by the mechanism's forward and backward path significantly affects the minimum distance between the start and end positions of the tape winding and the connector or branch fulcrum. This invention innovatively integrates the tape head clamping mechanism 210 onto the rotating wheel assembly 2, thus solving the aforementioned problem.

[0054] Specifically, such as Figure 4As shown, the tape clamping mechanism 210 mainly includes a driven-side tape clamping arm 211, a clamping arm synchronizing gear 212, a clamping arm guide rail 213, and a driving-side tape clamping arm 214. Specifically, the clamping arm guide rail 213 is fixed to the upper part of the moving wheel 201, and the driven-side tape clamping arm 211 and the driving-side tape clamping arm 214 are slidably connected to the clamping arm guide rail 213 via sliders. Both the driven-side tape clamping arm 211 and the driving-side tape clamping arm 214 have toothed structures on their inner sides, which mesh with the clamping arm synchronizing gear 212 to couple into a linkage structure. That is, external mechanisms (such as…) Figure 2 The tape clamping mechanism drive cylinder 21 shown can simultaneously drive the driven tape clamping arm 211 and the driving tape clamping arm 214 to perform opposing clamping movements by only driving one side of the clamping arm. Since the tape head clamping mechanism 210 moves together with the rotating wheel assembly 2, the external drive mechanism can only provide power in the clamping direction.

[0055] In actual use, the output end of the tape clamping drive cylinder 21, fixed on the module base 1, drives the drive-side tape clamping arm 214 to slide along the clamping arm guide rail 213, causing the clamping arm synchronous gear 212 to mesh and rotate, driving the driven-side tape clamping arm 211 to slide along the clamping arm guide rail 213, so that the driven-side tape clamping arm 211 and the drive-side tape clamping arm 214 move closer to each other and perform a clamping motion towards each other. Figure 2 As shown, the tape clamping drive cylinder 21 can be fixed to the back of the module base 1. The driven side tape clamping arm 211 and the driven side tape clamping arm 214 are located below the tape sway guide roller 205, and can clamp the vertically untied tape 4 from both sides. In actual use, the clamping arm synchronization gear 212 can be rotatably fixed to the drive wheel 201.

[0056] To facilitate the return function of the tape clamping mechanism 210 under normal conditions, a tape clamping return spring 209 is also provided. Specifically, the drive-side tape clamping arm 214 is fixed to one end of the tape clamping return spring 209, and the other end of the tape clamping return spring 209 is fixed to the moving wheel 201 located on the outside of the drive-side tape clamping arm 214 (here, the outside refers to the side away from the driven-side tape clamping arm 211), so that the tape clamping return spring 209 is stretched when the drive-side tape clamping arm 214 performs clamping movement. When the driven side tape clamping arm 211 and the driving side tape clamping arm 214 need to be reset to the released state, the driving side tape clamping arm 214 is moved outward under the action of the elastic force. During the movement, the driving side tape clamping arm 214 drives the clamping arm synchronous gear 212 to rotate, thereby causing the driven side tape clamping arm 211 to move outward synchronously, thereby causing the driven side tape clamping arm 211 and the driving side tape clamping arm 214 to separate and return to their original positions (i.e., the released state).

[0057] In a preferred embodiment of this utility model, such as Figure 1 As shown, the gripper arm assembly is located directly below the rotation range of the tape roll, and mainly includes a tape gripper assembly 7, a tape gripper cylinder 8, a gripper arm 9, a gripper arm base 10, a gripper arm cylinder 13, and a gripper arm guide rail 14. The gripper arm assembly serves two purposes: 1. It acts as a mechanism for maintaining the posture of the tape head during the initial state and the tape pre-adhesion stage; 2. It acts as a gripping mechanism for the tape during the tape preparation stage.

[0058] Specifically, the gripper arm guide rail 14 is vertically fixed to the rear of the module base 1 and located on the front of the module base 1. The gripper arm base 10 is slidably connected to the gripper arm guide rail 14 via a slider. Figure 2 As shown, a gripper swing arm drive motor 20 is fixed to the back of the module base 1, as... Figure 1 As shown, a gripper swing arm drive gear 12 is installed at the output end of the gripper swing arm drive motor 20, and a gripper swing arm drive rack 11 is vertically provided on the gripper swing arm base 10. The gripper swing arm drive gear 12 and the gripper swing arm drive rack 11 are meshed together. In actual use, the gripper swing arm drive motor 20 can drive the gripper swing arm base 10 to slide up and down along the gripper swing arm guide rail 14.

[0059] A gripper arm 9 and a gripper arm cylinder 13 are mounted on the gripper arm base 10. One end of the gripper arm 9 is rotatably connected to the gripper arm base 10, and the other end is equipped with a tape gripper assembly 7. The tape gripper assembly 7 is located below the tape deflection guide roller 205 and can grip or release the tape head under the drive of the tape gripper cylinder 8.

[0060] In this embodiment, the tape gripper assembly 7 mainly includes a driven-side tape gripper 7a and a driving-side tape gripper 7b. Both the driven-side tape gripper 7a and the driving-side tape gripper 7b have toothed structures and are meshed together. The lower end of the driving-side tape gripper 7b is rotatably connected to the output shaft of the tape gripper cylinder 8, and the lower end of the driven-side tape gripper 7a is rotatably connected to the end of the gripper swing arm 9. The tape gripper cylinder 8 enables the driven-side tape gripper 7a and the driving-side tape gripper 7b to clamp or release under meshing transmission. In addition, the tape gripper cylinder 8 can be mounted on the gripper swing arm 9 and can rotate synchronously around the axis with the gripper swing arm 9.

[0061] One end of the gripper swing arm cylinder 13 is rotatably connected to the gripper swing arm base 10, and the other end (i.e., the output end) is connected to the middle of the gripper swing arm 9. In actual use, it can drive the gripper swing arm 9 to swing up and down around the hinge point (i.e., the connection end between the gripper swing arm 9 and the gripper swing arm base 10) as the fulcrum, so that the tape gripper assembly 7 can avoid the rotation range of the rotating wheel assembly 2 during the tape winding stage, and can swing up to the required position during the tape holding stage and the tape gripping stage. During operation, combined with the up and down swing of the gripper swing arm 9, the tape gripper assembly 7 can switch between three positions: the tape head gripping position, the tape initial state holding position, and the tape winding stage avoidance position.

[0062] In a preferred embodiment of this utility model, such as Figure 1 As shown, the automatic tape cutting mechanism mainly includes a tape cutter holder 15, a tape cutter guide rail 16, and a tape cutter 17.

[0063] Specifically, the tape cutter guide rail 16 is axially aligned with the module base 1 (i.e., Figure 1 The tape cutter holder 15 is arranged horizontally (left and right) and is located at the rear of the rotating wheel assembly 2. The upper end of the tape cutter holder 15 is slidably connected to the tape cutter guide rail 16 via a slider, and the tape cutter holder 15 can slide horizontally left and right along the tape cutter guide rail 16 under the drive of the drive device. A tape cutter 17 is fixed at the bottom of the tape cutter holder 15, with the blade of the tape cutter 17 facing forward. Under the drive of the drive mechanism, the tape cutter 17 can move between the cutting position and the avoidance position. When the tape cutter holder 15 moves the tape cutter 17 to the right to the tape cutting position (generally when the tape cutter holder 15 moves to the right limit position of the tape cutter guide rail 16), the tape cutter 17 can cut the tape located between the tape head clamping mechanism 210 and the tape gripper assembly 7. In this embodiment, the tape cutter 17 has a pointed blade structure, which, in conjunction with the clamping action of the tape head clamping mechanism 210, can quickly and reliably cut the tape.

[0064] Using the aforementioned fully automatic tape wrapping head module, this utility model also provides an operating method, which is as follows:

[0065] S1: Initial preparation stage, such as Figure 5 As shown, the details are as follows:

[0066] The opening of the driving wheel 201 is aligned with the opening of the module base 1 to facilitate the entry and exit of the wire harness 6. The tape roll 3 is coaxially sleeved on the tape roll fixing shaft 202. The tape 4 unwound from the tape roll 3 passes sequentially through the tape guide roller 204 and the tape sway guide roller 205, so that the adhesive surface 4a of the tape faces the opening side of the module base 1. The swing angle of the gripper swing arm 9 is adjusted by the gripper swing arm cylinder 13 so that the unwound tape head is clamped and fixed in a suitable position by the tape gripper 7. The tape cutter 17 is in a rear clearance position of the module base 1. The driven side tape gripping arm 211 and the driving side tape gripping arm 214 are in the initial open state.

[0067] S2: Tape pre-application stage, such as Figure 6 and Figure 7 As shown, the details are as follows:

[0068] like Figure 6 As shown, the wire harness 6 first passes through the opening at the front end of the module base 1 and moves to the center of rotation of the rotating wheel 201. At this time, the outer surface of the wire harness 6 contacts the adhesive surface 4a of the tape to form a preliminary pre-adhesion, but it is not yet a reliable pre-adhesion. Subsequently, as... Figure 7 As shown, the moving wheel 201 rotates in the winding direction by as large an angle as possible, with the rotation range of the angle ensuring that it does not obstruct the downward swing of the gripper arm 9. At this time, the pre-adhesion wrapping angle between the outer surface of the wire harness 6 and the adhesive surface 4a of the tape increases, thereby increasing the reliability of the tape pre-adhesion.

[0069] S3: Tape wrapping and coating stage, such as Figure 8 and Figure 9 As shown, the details are as follows:

[0070] First, the tape gripper cylinder 8 releases the tape head from the tape gripper assembly 7. Then, the gripper swing arm cylinder 13 swings the gripper swing arm 9 downwards, causing the tape gripper assembly 7 to exit the tape winding rotation range. The drive wheel motor 18 drives the drive wheel 201 to rotate in the tape wrapping direction. Simultaneously, the head module moves relative to the wire harness 6 along its axial direction, creating a spiral tape wrapping effect, ultimately resulting in the fully wound tape 5.

[0071] During this process, the belt sway guide roller 205 can sway and rotate to adapt to the belt conveying direction, and always guide the untied belt 4.

[0072] S4: Tape finishing and cutting stage, such as Figure 10 As shown, the details are as follows:

[0073] After the continuous winding stage ends and the tape roll 3 returns to its initial state, the tape clamping drive cylinder 21 externally drives the drive-side tape clamping arm 214 to slide along the clamping arm guide rail 213, causing the driven-side tape clamping arm 211 and the drive-side tape clamping arm 214 to move closer to each other and clamp the tape above the cutting position. Subsequently, the tape cutter holder 15 drives the tape cutter 17 to move along the tape cutter guide rail 16 to the tape cutting position, cuts the tape, and then retracts.

[0074] S5: Tape preparation stage, such as Figure 11 and 12 As shown, the details are as follows:

[0075] After the wire harness 6, wrapped with tape, exits the head module through the front opening of the module base 1, the tape preparation stage begins. At this time, the tape gripper assembly 7 remains open, and the gripper swing arm cylinder 13 actuates to swing the gripper swing arm 9 upwards to a horizontal position. Simultaneously, the gripper swing arm drive motor 20 drives the gripper swing arm drive gear 12 to rotate, driving the gripper swing arm base 10 upwards until it reaches the tape clamping position (e.g., ...). Figure 11 (State), allowing the cut end of the tape to enter the opening position of the tape gripper assembly 7. For example... Figure 12 In the indicated state, the tape gripper cylinder 8 actuates to close the tape gripper assembly 7, clamping the tape head. Subsequently, the tape gripping drive cylinder 21 resets, and the tape gripping return spring 209 separates the driven-side tape gripping arm 211 from the driving-side tape gripping arm 214. Next, the gripper swing arm drive motor 20 actuates again, driving the gripper swing arm base 10 downwards, causing the tape gripper assembly 7 to move downwards with the tape head to the initial preparation stage position of S1, completing the tape preparation stage.

[0076] In actual use, S1~S5 can be repeated multiple times as needed to achieve fully automatic tape wrapping of each target wire harness 6.

[0077] The design principle of this utility model device is briefly explained below:

[0078] In the prior art, the tape roll is mounted on a rotating wheel with an opening via a tape support. The opening of the rotating wheel allows the wire harness to enter the center of rotation of the rotating wheel. At the same time, the unwound portion of the tape passes through a set of guide rollers to reach the center of the rotating wheel for winding. When the tape head has been reliably pre-adhered to the surface of the wire harness, the motor drives the rotating wheel to rotate and wind around the wire harness. Simultaneously, the head module moves relative to the wire harness along the axial direction, uniformly and controllably winding the tape onto the surface of the wire harness. When the tape reaches the end of the winding, a mechanism or manual operation is required to cut the tape.

[0079] However, given the basic tape winding process and structure described above, it's impossible to arrange corresponding mechanisms to achieve the desired functions within the rotational space of the tape roll and the drive wheel. Existing fully automated winding technologies simply place corresponding mechanisms outside this rotational space to perform actions such as pre-adhesion and cutting. Therefore, designing and arranging the corresponding functional mechanisms in a more rational, compact, and ingenious way becomes a key design factor.

[0080] The core of the design scheme of this utility model lies in:

[0081] 1. Since the driving wheel is an open, dynamic rotating body, conventional power mechanisms cannot be placed on it. This invention cleverly arranges a set of tape head clamping mechanisms on the rotating driving wheel assembly. When the driving wheel is in a specific position, the tape head clamping mechanism is driven by an external mechanism, and this specific position coincides with the position where the tape head clamping mechanism needs to move. This avoids the extra space required by externally arranging the tape head clamping mechanism to avoid the rotation space of the tape roll and the driving wheel, thus reducing the structural size of the machine head module.

[0082] 2. Before the tape is pre-bonded and wrapped, a mechanism is arranged to maintain the posture of the tape, so as to avoid the tape head from becoming unstable, thereby improving the reliability of each tape pre-bonding. The holding mechanism can automatically avoid the tape during the tape wrapping stage.

[0083] 3. An automatic tape cutting mechanism is provided. After the tape winding is completed, it works with the tape head clamping mechanism to complete the automatic tape cutting function and maintain the posture of the cut tape head so that the tape clamping mechanism can reliably clamp the tape and switch the tape state to the initial preparation state for the next winding process.

[0084] 4. The tape holding mechanism in the initial stage also serves as the tape clamping mechanism in the tape preparation stage. This single mechanism can complete the different tasks in the two stages, saving half the layout of the corresponding mechanisms.

[0085] 5. The aforementioned automatic tape cutting mechanism and tape holding / tape clamping mechanism are all arranged outside the rotation space of the drive wheel assembly, but not in the axial direction of rotation, but in the radial direction outside the rotation range. The advantage of this is that it can reduce the thickness of the head module, which is beneficial for winding the tape closer to the wire harness connector or branch node.

[0086] The embodiments described above are merely preferred solutions of this utility model, and are not intended to limit the scope of this utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this utility model. Therefore, all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A fully automatic tape wrapping machine head module, characterized in that, Includes a rotating wheel assembly (2) mounted on the module base (1), a gripper swing arm assembly and an automatic tape cutting mechanism; The front of the module base (1) is rotatably connected to a rotating wheel assembly (2), and the front end is provided with an opening for the wire harness (6) to enter the rotating wheel assembly (2); the rotating wheel assembly (2) can wrap the tape around the outer periphery of the wire harness (6) by rotating, and can clamp the tape near the position to be cut by the tape head clamping mechanism (210); The gripper arm assembly is located below the rotating wheel assembly (2), and can move up and down and rotate around the axis. The tape gripper assembly (7) can hold the tape head. The automatic tape cutting mechanism is located at the rear of the rotating wheel assembly (2); the tape cutter (17) can move between the tape cutting position and the avoidance position, and can cut the tape at the break point at the tape cutting position.

2. The fully automatic tape wrapping machine head module according to claim 1, characterized in that, The rotating wheel assembly (2) includes a rotating wheel (201), a film roll fixing shaft (202), a tape guide roller (204), a tape sway guide roller (205), a counterweight (208), and a tape head clamping mechanism (210). The moving wheel (201) has an arc-shaped structure and transmission teeth on its outer circumference; the film roll fixing shaft (202) is fixed to the upper part of the moving wheel (201) by the film roll fixing bracket (203) for coaxially fixing the tape roll (3) and enabling the tape roll (3) to rotate together along the central axis; the tape guide roller (204) and the tape sway guide roller (205) are both fixed to the upper part of the moving wheel (201), and the tape (4) unwound on the tape roll (3) can pass through the guiding action of the tape guide roller (204) and the tape sway guide roller (205) in sequence in a vertically downward state with the adhesive surface (4a) of the tape facing the opening of the module base (1); the counterweight (208) is located at the lower part of the moving wheel (201) and is used to balance the gravity of the upper part of the moving wheel (201); The tape head clamping mechanism (210) includes a driven tape clamping arm (211), a clamping arm synchronizing gear (212), a clamping arm guide rail (213), and a driving tape clamping arm (214). The clamping arm guide rail (213) is fixed to the upper part of the driving wheel (201). The driven tape clamping arm (211) and the driving tape clamping arm (214) are slidably connected to the clamping arm guide rail (213) through sliders. The inner sides of the driven tape clamping arm (211) and the driving tape clamping arm (214) are provided with toothed structures, which mesh with the clamping arm synchronizing gear (212) to couple into a linkage structure. The output end of the tape clamping drive cylinder (21) fixed on the module base (1) drives the drive side tape clamping arm (214) to slide along the clamping arm guide rail (213), causing the clamping arm synchronous gear (212) to mesh and rotate, driving the driven side tape clamping arm (211) to slide along the clamping arm guide rail (213), so that the driven side tape clamping arm (211) and the drive side tape clamping arm (214) move closer to each other and perform a clamping motion towards each other; the driven side tape clamping arm (211) and the drive side tape clamping arm (214) are located below the tape sway guide roller (205) and can clamp the vertically untied tape (4) from both sides.

3. The fully automatic tape wrapping head module according to claim 2, characterized in that, The arc-shaped opening of the moving wheel (201) is the same size as the front opening of the module base (1), and the two openings coincide in the initial state. The moving wheel (201) is connected to the moving wheel drive motor (18) through the moving wheel drive synchronous belt (19). The moving wheel drive motor (18) can make the moving wheel (201) rotate in front of the module base (1), driving the tape roll (3) to move in an arc.

4. The fully automatic tape wrapping head module according to claim 2, characterized in that, The belt sway guide roller (205) is fixed to the belt sway support seat (207) by a belt sway bracket (206) with flexible sway, so that the belt sway guide roller (205) can sway and rotate to adapt to the conveying direction of the untied belt (4); the belt sway support seat (207) is fixed to the upper part of the drive wheel (201).

5. The fully automatic tape wrapping machine head module according to claim 2, characterized in that, The drive-side tape clamping arm (214) is fixed to one end of the tape clamping return spring (209), and the other end of the tape clamping return spring (209) is fixed to the moving wheel (201) located outside the drive-side tape clamping arm (214). When the drive-side tape clamping arm (214) performs clamping movement, it stretches the tape clamping return spring (209), which can cause the driven-side tape clamping arm (211) and the drive-side tape clamping arm (214) to separate and return to their original positions under the action of elastic force.

6. The fully automatic tape wrapping head module according to claim 2, characterized in that, The gripper arm assembly includes a tape gripper assembly (7), a tape gripper cylinder (8), a gripper arm (9), a gripper arm base (10), a gripper arm cylinder (13), and a gripper arm guide rail (14). The gripper arm guide rail (14) is vertically fixed on the module base (1). The gripper arm base (10) is slidably connected to the gripper arm guide rail (14) through a slider. The gripper arm base (10) is hinged to one end of the gripper arm (9) and the gripper arm cylinder (13) respectively. The other end of the gripper arm (9) is equipped with a tape gripper assembly (7). The tape gripper assembly (7) is located below the tape sway guide roller (205) and can clamp or release the tape head under the drive of the tape gripper cylinder (8). The tape gripper cylinder (8) is installed on the gripper arm (9). The output end of the gripper arm cylinder (13) is located in the middle of the gripper arm (9) and is used to drive the gripper arm (9) to swing up and down with the hinge point as the fulcrum.

7. The fully automatic tape wrapping head module according to claim 6, characterized in that, The module base (1) is fixed with a gripper swing arm drive motor (20). The output end of the gripper swing arm drive motor (20) is equipped with a gripper swing arm drive gear (12). The gripper swing arm base (10) is vertically provided with a gripper swing arm drive rack (11). The gripper swing arm drive gear (12) meshes with the gripper swing arm drive rack (11). The gripper swing arm drive motor (20) can drive the gripper swing arm base (10) to slide up and down along the gripper swing arm guide rail (14).

8. The fully automatic tape wrapping head module according to claim 6, characterized in that, The tape gripper assembly (7) includes a driven tape gripper (7a) and a driving tape gripper (7b); both the driven tape gripper (7a) and the driving tape gripper (7b) have toothed structures and mesh with each other; the lower end of the driving tape gripper (7b) is connected to the output shaft of the tape gripper cylinder (8), and the driven tape gripper (7a) and the driving tape gripper (7b) can clamp or release under meshing transmission through the tape gripper cylinder (8).

9. The fully automatic tape wrapping head module according to claim 6, characterized in that, The automatic tape cutting mechanism includes a tape cutter holder (15), a tape cutter guide rail (16), and a tape cutter (17). The tape cutter guide rail (16) is axially parallel to the module base (1). The tape cutter seat (15) is slidably connected to the tape cutter guide rail (16) via a slider. A tape cutter (17) is fixed on the tape cutter seat (15). When the tape cutter seat (15) moves the tape cutter (17) to the tape cutting position, the tape cutter (17) can cut the tape located between the tape head clamping mechanism (210) and the tape gripper assembly (7).

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