Fixed-length adhesive tape supply mechanism

The fixed-length adhesive tape supply mechanism addresses the issue of inconsistent tape lengths by providing precise control and stable cutting, improving production efficiency and product uniformity in car seat heating pad manufacturing.

CN222159304UActive Publication Date: 2024-12-13SUZHOU ITEC INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202420882163.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-26
Publication Date
2024-12-13
Estimated Expiration
2034-04-26

AI Technical Summary

Technical Problem

Existing tape cutting equipment in car seat heating pad production is limited to cutting specific lengths, failing to meet the diverse batch demands for tapes of different sizes, leading to inefficiencies and inconsistent product appearance.

Method used

A fixed-length adhesive tape supply mechanism with a feeding, steering, fixing, cutting, and pulling assembly, allowing for precise control of tape length through a combination of cylinders and positioning rollers, ensuring stable and reliable cutting.

Benefits of technology

Enables flexible cutting of adhesive tapes to various lengths, enhancing production efficiency and product uniformity by stabilizing the cutting process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fixed-length adhesive tape supply mechanism. The fixed-length adhesive tape supply mechanism comprises a rack, a feeding assembly, a steering assembly, a fixing assembly, a cutting assembly, a traction assembly and a pneumatic assembly. The feeding assembly comprises an adhesive tape, and after the free end of the adhesive tape is pulled out of the feeding assembly, under traction of the traction assembly, the free end of the adhesive tape is sequentially steered and tensioned by the steering assembly, fixed by the fixing assembly and finally cut by the cutting assembly. The traction assembly pulls the adhesive tape to move, the two sets of air cylinders are arranged to clamp the adhesive tape, the air cylinder with a certain stroke is arranged to drive the blade to cut the adhesive tape, the adhesive tape with different lengths can be cut, and the cutting process is more stable and reliable.
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Description

Technical Field

[0001] The utility model relates to the field of automobile seat heating pad processing, in particular to a fixed-length adhesive tape supply mechanism. Background Art

[0002] In the production process of car seat heating pads, it is necessary to apply glue to the surface of the base fabric with the heating wire to facilitate the base fabric to be pasted on the surface of other products for the next step of processing. Due to different product types, different lengths of tape need to be pasted.

[0003] In the prior art, the tape cutting equipment can only cut tapes of a specific length, which is difficult to meet the batch demand for tapes of different sizes in the production process of car seat heating pads. It will waste a lot of manpower in batch production, which is inefficient and difficult to unify the appearance of the finished products. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a fixed-length adhesive tape supply mechanism, which can provide adhesive tapes of different lengths in batches, and the cutting process is stable and reliable.

[0005] The utility model is realized by the following technical solutions:

[0006] A fixed-length adhesive tape supply mechanism, comprising:

[0007] frame;

[0008] A feeding assembly, wherein the feeding assembly is fixed on the frame;

[0009] A steering assembly, comprising a roller support and at least one first positioning roller, wherein the roller support is fixed on the frame, and the at least one first positioning roller is fixed on the roller support;

[0010] A fixing assembly, comprising a first cylinder, a second cylinder, a pair of third cylinders, a first clamping plate, a second clamping plate and a third clamping plate, wherein the first clamping plate and the second clamping plate are fixedly connected to the first cylinder and the second cylinder respectively, and both ends of the third clamping plate are fixedly connected to the pair of third cylinders respectively, the second cylinder is fixed on the frame, and the first cylinder and the pair of third cylinders are fixedly connected to the roller bracket;

[0011] A cutting assembly, comprising a fourth cylinder and a cutting blade, wherein the cutting blade is fixed on the fourth cylinder, and the cutting cylinder is fixedly connected to the fixing assembly;

[0012] A pulling assembly, comprising a pair of fifth cylinders and a pair of pulling jaws, wherein the pair of pulling jaws are fixed to the pair of fifth cylinders for clamping the adhesive tape;

[0013] The feeding assembly also includes a tape. After the free end of the tape is pulled out from the feeding assembly, it is positioned by the steering assembly, fixed by the fixing assembly, and finally cut by the cutting assembly under the pulling of the pulling assembly.

[0014] Furthermore, the second clamping plate is provided with a first cutting groove, the third clamping plate is provided with a second cutting groove corresponding to the first cutting groove, and the cutting blade passes through the second cutting groove and the first cutting groove in sequence and can move along the direction of the first cutting groove and the second cutting groove.

[0015] Furthermore, the roller support includes a second bottom plate, the second bottom plate is provided with a through hole for the tape to pass through, and the first clamping plate can clamp the tape with the upper bottom surface of the through hole.

[0016] Furthermore, the roller bracket also includes a pair of second support plates, which are fixed on the first side surface close to the pulling assembly and symmetrical about the through hole, and the pair of third cylinders are fixedly connected to the pair of second support plates respectively.

[0017] Furthermore, at least one positioning block is sleeved on the first positioning roller.

[0018] Furthermore, the pulling assembly also includes a second fixing member and a single-axis motion module, the single-axis motion module is fixed on the frame, one end of the second fixing member is fixedly connected to the single-axis motion module, and the other end is fixedly connected to the pair of fifth cylinders.

[0019] Furthermore, the single-axis motion module, the feeding assembly, the steering assembly and the fixing assembly are all located on the same axis.

[0020] Furthermore, anti-sticking tape is fixed on the first positioning roller, the first clamping plate, the second clamping plate and the pulling clamping claw.

[0021] Furthermore, the feeding assembly also includes a feeding roller and a roller base, the roller base is fixedly connected to the frame, the feeding roller is installed and fixed to the roller base, and the tape sleeve is arranged on the outer periphery of the feeding roller.

[0022] Furthermore, the cutting assembly also includes a sliding assembly, which is fixed on the third clamping plate and fixedly connected to the fourth cylinder.

[0023] Compared with the prior art, the advantages of the present invention are:

[0024] 1. By controlling the moving distance of the pulling component to pull the tape, the length of the tape cut can be freely controlled.

[0025] 2. By setting two sets of cylinders to clamp the tape, and setting a cylinder with a certain stroke to drive the blade to cut the tape, the cutting process is made more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the fixed-length adhesive tape supply mechanism;

[0027] Figure 2 for Figure 1 A schematic diagram of the overall structure of the pulling component in another state;

[0028] Figure 3 for Figure 1 A magnified image of area A;

[0029] Figure 4 An exploded view of a fixed component;

[0030] Figure 5 Installation drawings for the steering assembly, fixing assembly and cutting assembly;

[0031] Figure 6 for Figure 2 Enlarged view of area B;

[0032] Figure 7 This is a partial structural side view of the fixed-length tape supply mechanism in working condition;

[0033] Figure 8 This is a control principle diagram of an embodiment of the fixed-length tape supply mechanism.

[0034] 1. Frame; 11. Box; 110. First bottom plate; 111. Receiver plate; 112. Receiver bracket; 113. Inlet slot; 12. First slide rail; 13. Fixed plate; 14. Drag chain; 2. Feeding assembly; 21. Feeding roller; 210. Drum shaft; 211. Drum body; 22. Adhesive tape; 221. Adhesive surface; 23. Roller base; 3. Steering assembly; 30. Roller bracket; 300. Second bottom plate; 301, first support plate; 302, second support plate; 303, first side; 304, second side; 305, first side plate; 306, second side plate; 307, through hole; 31, first positioning roller; 310, positioning block; 32, second positioning roller; 33, third positioning roller; 4, fixing assembly; 41, first cylinder; 410, first end cover; 42, second cylinder; 420, second end Cover; 43, third cylinder; 430, third end cover; 44, first clamp; 45, second clamp; 451, first cutting groove; 46, third clamp; 461, second cutting groove; 5, cutting assembly; 51, fourth cylinder; 52, cutting blade; 53, first fixing member; 54, sliding assembly; 541, second slide rail; 542, slide; 55, blade connecting plate; 551, third bottom plate; 552, third side plate; 6, pulling assembly; 61, fifth cylinder; 62, pulling jaw; 620, fourth bottom plate; 621, fourth side plate; 622, boss; 63, second fixing member; 631, fifth bottom plate; 632, reinforcing plate; 64, single-axis motion module; 641, slider; 642, guide rail; 643, motor; 7, pneumatic assembly; 70, manifold; 71, solenoid valve assembly; 8, controller. DETAILED DESCRIPTION

[0035] The following is a further non-restrictive detailed description of the utility model technical solution in conjunction with the preferred embodiment and its accompanying drawings. In the description of the utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings. In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limitations on the utility model.

[0036] like Figure 1 and Figure 2 As shown, the overall structural diagram of an embodiment of the fixed-length tape supply mechanism includes a frame 1, a feeding assembly 2, a steering assembly 3, a fixing assembly 4, a cutting assembly 5, a pulling assembly 6, and a pneumatic assembly 7. The feeding assembly 2, the steering assembly 3, the fixing assembly 4, the cutting assembly 5, the pulling assembly 6, and the pneumatic assembly 7 are all fixed to the frame 1 by screws or other fasteners.

[0037] Further references Figure 2 The frame 1 includes a box body 11, a first slide rail 12, a fixed plate 13 and a drag chain 14, and the feeding assembly 2 includes a feeding roller 21, an adhesive tape 22 and a roller base 23. The feeding roller 21 includes a cylinder shaft 210 and a cylinder body 211 sleeved on one end of the cylinder shaft 210, and the material tray of the adhesive tape 22 is sleeved on the outside of the cylinder body 211. The other end of the cylinder shaft 210 is inserted into the roller base 23 and can rotate freely in the roller base 23. The roller base 23 is fixed to the receiving plate 111 by screws, and the receiving plate 111 is fixedly connected to several receiving brackets 112 welded on the lower bottom surface of the box body 11 by screws. The box body 11 is fixedly installed and fixed to the first slide rail 12, and can move freely on the first slide rail 12. The first slide rail 12 is fixed to the fixed plate 13 by screws, and the fixed plate 13 is generally arranged on the side of the heating pad processing production line. The first bottom plate 110 of the box 11 is provided with an inlet slot 113 on the feeding side, and the adhesive tape 22 can enter the steering assembly 3 from the inlet slot 113 during the pulling process. One side of the box 11 is fixedly connected to the drag chain 14, and the cables and air pipes required by the fixed-length adhesive tape supply mechanism are arranged inside the drag chain 14. When the material tray of the adhesive tape 22 needs to be replaced, the entire fixed-length adhesive tape supply mechanism can be pulled out from the side of the production line by simply pushing the box 11, which is convenient for replacement operation.

[0038] like Figure 3 As shown, the steering assembly 3 includes a roller support 30, a first positioning roller 31, a second positioning roller 32 and a third positioning roller 33. The roller support 30 is fixed to the first bottom plate 110 on the box body 11 by screws. The roller support 30 includes a second bottom plate 300, a first support plate 301, a pair of second support plates 302, a pair of first side plates 305 and a pair of second side plates 306. For further reference Figure 4 and Figure 5The second bottom plate 300 is provided with a through hole 307 for allowing the tape 22 to pass through. The through hole 307 in this embodiment is "T-shaped", and the first support plate 301 is fixed to the bottom edge of the narrower part of the through hole 307 by screws. The second bottom plate 300 includes a second side surface 304 close to the feeding assembly 2 and a first side surface 303 away from the feeding assembly 2. A pair of second support plates 302 are fixed to the first side surface 303 by screws, and a pair of first side plates 305 and a pair of second side plates 306 are fixed to the second side surface 304 by screws, one high and one low, respectively, and are symmetrical about the through hole 307. In this embodiment, the two ends of the first positioning roller 31 are fixed between the pair of first side plates 305 by screws, and the second positioning roller 32 and the third positioning roller 33 are installed between the pair of second side plates 306 by assembly. Furthermore, the assembly hole on the second side plate 306 that matches the second positioning roller 32 is higher than the bottom surface of the assembly groove that matches the third positioning roller 33, so the longitudinal height of the second positioning roller 32 is higher than the third positioning roller 33. Furthermore, two positioning blocks 310 are sleeved on the first positioning roller 31. Positioning screw holes are provided on the positioning blocks 310, so that the position of the positioning blocks 310 on the first positioning roller 31 can be changed according to the width of the tape 22.

[0039] like Figure 4 and Figure 5 As shown, the fixing assembly 4 includes a first cylinder 41, a second cylinder 42 and a pair of third cylinders 43. The first cylinder 41 is fixedly connected to the first support plate 301 by screws. The second cylinder 42 is fixedly connected to the first base plate 110 by screws and is located on the side opposite to the first side 303. The pair of third cylinders 43 are respectively fixedly connected to the pair of second support plates 302 by screws. The fixing assembly 4 also includes a first clamping plate 44, a second clamping plate 45 and a third clamping plate 46. The first clamping plate 44 is fixedly connected to the first end cover portion 410 of the first cylinder 41 by screws. The second clamping plate 45 is fixedly connected to the second end cover portion 420 of the second cylinder 42 by screws. The two ends of the third clamping plate 46 are respectively fixedly connected to the third end cover portions 430 of the pair of third cylinders 43. Since there is a height difference between the first bottom plate 110, the first support plate 301 and the second support plate 302, the first clamping plate 44, the second clamping plate 45 and the third clamping plate 46 respectively form a clamping area, and the third clamping plate 46 can independently clamp the free end of the tape 22 with the first clamping plate 44 and the second clamping plate 45. In addition, when the first cylinder 41 is extended, the first clamping plate 44 can clamp the tape 22 with the upper bottom surface of the through hole 307. Further, the second clamping plate 45 is provided with a first cutting groove 451, and the third clamping plate 46 is provided with a second cutting groove 461 corresponding to the first cutting groove 451, and the cutting blade 52 passes through the second cutting groove 461 and the first cutting groove 451 in sequence and can move along the direction of the first cutting groove 451 and the second cutting groove 461.

[0040] The cutting assembly 5 includes a fourth cylinder 51, a cutting blade 52, a pair of first fixing members 53, a sliding assembly 54 and a blade connecting plate 55. The blade connecting plate 55 includes a third bottom plate 551 and a third side plate 552 arranged on the third bottom plate 551. The two sides of the cylinder body of the fourth cylinder 51 are fixedly connected with the third bottom plate 551 and the third side plate 552 by screws. The cutting blade 52 is fixed to the outer side of the third side plate 552 by screws, and the cutting part of the cutting blade 52 passes through the first cutting groove 451 and the second cutting groove 461. The two ends of the fourth cylinder 51 are respectively connected with a pair of first fixing members 53, and the pair of first fixing members 53 are fixed to the third clamping plate 46 by screws. The sliding assembly 54 includes a second slide rail 541 and a slide table 542. The second slide rail 541 is fixed on the third clamping plate 46 and is located below the fourth cylinder 51, and the slide table 542 installed on the second slide rail 541 is fixed to the third side plate 552 by screws. In this embodiment, the fourth cylinder 51 is a rodless cylinder, and the cylinder body can reciprocate with the piston, thereby driving the cutting blade 52 to freely move the cutting tape 22 in the first cutting groove 451 and the second cutting groove 461. The sliding assembly 54 fixed below the fourth cylinder 51 prevents the piston of the fourth cylinder 51 from bending due to the force of the cutting blade 52, thereby ensuring smooth movement.

[0041] like Figure 6 As shown, the pulling assembly 6 includes a pair of fifth cylinders 61 and a pair of pulling jaws 62. The pulling jaws 62 include a fourth bottom plate 620 and a fourth side plate 621. A boss 622 is convexly provided on one side of the fourth side plate 621, and a screw hole is provided on the fourth bottom plate 620. The two pulling jaws 62 are respectively fixed to the cylinder body and the movable end cover of a pair of fifth cylinders 61 by screws, and are symmetrically arranged. The piston of the fifth cylinder 61 is extended and retracted to drive the pair of pulling jaws 62 to move closer and farther away. When the fifth cylinder 61 contracts, the boss 622 fits the clamping tape 22. The pulling assembly 6 also includes a second fixing member 63 and a single-axis motion module 64. The single-axis motion module 64 includes a slider 641, a guide rail 642 and a motor 643. The guide rail 642 is fixed on the frame 1 and is located on the same axis as the feeding assembly 2, the steering assembly 3 and the fixing assembly 4. The slider 641 is mounted on the guide rail 642, and the motor 643 is located at one end of the guide rail 642. The second fixing member 63 includes a fifth base plate 631 and a reinforcing plate 632 disposed on one side of the fifth base plate 631. The bottom of the fifth base plate 631 is fixedly connected to the slider 641 by screws, and the side is fixedly connected to the cylinder bodies of the pair of fifth cylinders 61 by screws, and the reinforcing plate 632 is fixedly connected to the slider 641 by screws. The motor 643 drives the slider 641 to drive the fifth cylinder 61 and the pulling clamp 62 to reciprocate along the guide rail 642. The length of the cutting tape 22 can be controlled by controlling the moving distance of the slider 641.

[0042] The first positioning roller 31 , the first clamping plate 44 , the second clamping plate 45 and the pulling clamping jaw 62 are all fixed with anti-sticking tapes to facilitate the separation of the adhesive surface 221 of the tape 22 from the corresponding contact position and ensure the stickiness of the tape 22 .

[0043] like Figure 2 As shown, the embodiment of the fixed-length adhesive tape supply mechanism further includes a pneumatic assembly 7. The pneumatic assembly 7 includes a manifold 70 and a solenoid valve assembly 71. The manifold 70 is fixed to the first bottom plate 110 of the frame 1 by screws. The solenoid valve assembly 71 includes a plurality of solenoid valves for controlling the above-mentioned cylinders, and the solenoid valves are fixedly mounted on the manifold 70 and communicated with the air path in the manifold 70. The solenoid valve assembly 71 is connected to the above-mentioned cylinders through an air pipe and controls their movement.

[0044] like Figure 8 As shown, the embodiment of the fixed-length tape supply mechanism further includes a controller 8 in the electric control box, and the controller 8 is electrically connected to the single-axis motion module 64 in the pulling assembly 6 and the solenoid valve assembly 71 in the pneumatic assembly 7. The solenoid valve assembly 71 is connected to the first cylinder 41, the second cylinder 42, the third cylinder 43 and the fourth cylinder 51 through the air pipe, and controls the activities of the corresponding cylinders. In this embodiment, the type of the controller is PLC.

[0045] like Figure 7 As shown, when the embodiment of the fixed-length tape supply mechanism is in working state, after the free end of the tape 22 is pulled out from the feeding assembly 2, it is positioned by the steering assembly 3, fixed by the fixing assembly 4, and finally cut by the cutting assembly 5 under the pulling of the pulling assembly 6. Due to the presence of the positioning block 310 sleeved on the first positioning roller 31, the tape 22 will not be offset in the axial direction of the first positioning roller 31 during the pulling process, which will affect the cutting quality. In this embodiment, the second positioning roller 32 and the third positioning roller 33 are not only used to change the direction in which the tape 22 is pulled, but also to reduce the vibration generated when the tape 22 is pulled out. In addition, the existence of the height difference between the second positioning roller 32 and the third positioning roller 33 allows the tape 22 to enter the clamping area of ​​the fixing assembly 4 at a gentle angle.

[0046] Before the pulling process begins, the controller controls the first end cover 410 of the first cylinder 41 to extend, the second end cover 420 of the second cylinder 42 to retract, and the third end cover 430 of the third cylinder 43 to extend. The free end of the tape 22 is clamped by the first clamping plate 44 and the upper bottom edge of the through hole 307 and a certain pulling length is exposed. The end cover of the fifth cylinder 61 extends so that the pulling jaw 62 remains in an open state. The controller controls the uniaxial motion module 64 to drive the fifth cylinder 61 and the pulling jaw 62 to move to the fixed component 4, at which time the pulling jaw 62 can just extend into the area between the second clamping plate 45 and the third clamping plate 46. The fifth cylinder 61 contracts to drive the pulling jaw 62 to fit together and clamp the free end of the tape 22. Then the first end cover 410 of the first cylinder 41 is retracted to release the tape 22. Then, the single-axis motion module 64 drives the fifth cylinder 61 and the pulling clamp 62 away from the fixing assembly 4 , so that the free end of the adhesive tape 22 is pulled out a corresponding distance.

[0047] When the tape 22 is pulled out to a specified length, the single-axis motion module 64 stops moving. Then, the controller controls the second end cover 420 of the second cylinder 42 to extend, and the third end cover 430 of the third cylinder 43 to contract, so that the other end of the tape 22 is clamped by the first clamp 44, the second clamp 45 and the third clamp 46, and at the same time, the cutting blade 52 fixed on the fourth cylinder 51 pierces the tape 22. Then, the controller controls the fourth cylinder 51 to reciprocate once, driving the cutting blade 52 to cut the tape 22. Finally, the first end cover 410 of the first cylinder 41 extends out to re-clamp the newly cut free end of the tape 22 to prevent the tape 22 from returning to the feeding assembly 2 due to inertia and waiting for the pulling before the next cutting process. The pulling jaws 62, the second clamp 45 and the third clamp 46 loosen the two ends of the cut tape 22, so that it can be taken by the mechanism of the next process.

[0048] The fixed-length tape supply mechanism embodiment can freely control the length of the tape 22 cut by controlling the moving distance of the pulling assembly 6 to pull the tape 22. In addition, two sets of cylinders are provided to clamp the tape 22, and the positioning block 310 is used to position the tape during the pulling process, and a rodless cylinder with a certain stroke is provided to reciprocate to drive the cutting blade 52 to cut the tape 22, so that the tape 22 can be cut into different widths, and the cutting process is more stable and reliable.

[0049] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A fixed-length tape supply mechanism, characterized in that: include: Rack(1); A feeding assembly (2), wherein the feeding assembly (2) is fixed on the frame (1); A steering assembly (3), comprising a roller support (30) and at least one first positioning roller (31), wherein the roller support (30) is fixed on the frame (1), and the at least one first positioning roller (31) is fixed on the roller support (30); A fixing assembly (4), comprising a first cylinder (41), a second cylinder (42), a pair of third cylinders (43), a first clamping plate (44), a second clamping plate (45) and a third clamping plate (46), wherein the first clamping plate (44) and the second clamping plate (45) are respectively fixedly connected to the first cylinder (41) and the second cylinder (42), two ends of the third clamping plate (46) are respectively fixedly connected to the pair of third cylinders (43), the second cylinder (42) is fixed on the frame (1), and the first cylinder (41) and the pair of third cylinders (43) are both fixedly connected to the roller bracket (30); A cutting assembly (5), comprising a fourth cylinder (51) and a cutting blade (52), wherein the cutting blade (52) is fixed to the fourth cylinder (51), and the fourth cylinder (51) is fixedly connected to the third clamping plate (46); A pulling assembly (6) comprising a pair of fifth cylinders (61) and a pair of pulling clamps (62), wherein the pair of pulling clamps (62) are symmetrically fixed on the pair of fifth cylinders (61) and are used to clamp the adhesive tape; The feeding assembly (2) further comprises an adhesive tape (22). After the free end of the adhesive tape (22) is pulled out from the feeding assembly (2), it is pulled by the pulling assembly (6) and is positioned by the steering assembly (3), fixed by the fixing assembly (4), and finally cut by the cutting assembly (5).

2. The fixed-length adhesive tape supply mechanism according to claim 1, characterized in that: The second clamping plate (45) is provided with a first cutting groove (451), the third clamping plate (46) is provided with a second cutting groove (461) corresponding to the first cutting groove (451), and the cutting blade (52) passes through the second cutting groove (461) and the first cutting groove (451) in sequence and can move along the direction of the first cutting groove (451) and the second cutting groove (461).

3. The fixed-length adhesive tape supply mechanism according to claim 1, characterized in that: The roller support (30) comprises a second bottom plate (300), the second bottom plate (300) being provided with a through hole (307) through which the adhesive tape (22) can pass, and the first clamping plate (44) can clamp the adhesive tape (22) with the upper bottom surface of the through hole (307).

4. The fixed-length adhesive tape supply mechanism according to claim 3, characterized in that: The roller bracket (30) further comprises a pair of second support plates (302), the pair of second support plates (302) being fixed on a first side surface (303) relative to the pulling assembly (6) and symmetrical about the through hole (307), and the pair of third cylinders (43) being respectively fixedly connected to the pair of second support plates (302).

5. The fixed-length adhesive tape supply mechanism according to claim 1, characterized in that: At least one positioning block (310) is also sleeved on the first positioning roller (31).

6. The fixed-length adhesive tape supply mechanism according to claim 1, characterized in that: The pulling assembly (6) further comprises a second fixing member (63) and a single-axis motion module (64), wherein the single-axis motion module (64) is fixed to the frame (1), and one end of the second fixing member (63) is fixedly connected to the single-axis motion module (64), and the other end is fixedly connected to the pair of fifth cylinders (61).

7. The fixed-length adhesive tape supply mechanism according to claim 6, characterized in that: The single-axis motion module (64), the feeding assembly (2), the steering assembly (3) and the fixing assembly (4) are all located on the same axis.

8. The fixed-length adhesive tape supply mechanism according to claim 1, characterized in that: Anti-sticking tape is fixed to the first positioning roller (31), the first clamping plate (44), the second clamping plate (45) and the pulling clamping claw (62).

9. The fixed-length adhesive tape supply mechanism according to claim 1, characterized in that: The feeding assembly (2) further comprises a feeding roller (21) and a roller base (23); the roller base (23) is fixedly connected to the frame (1); the feeding roller (21) is fixedly mounted on the roller base (23); and the adhesive tape (22) is sleeved on the outer circumference of the feeding roller (21).

10. The fixed-length adhesive tape supply mechanism according to claim 1, characterized in that: The cutting assembly (5) further comprises a sliding assembly (54), wherein the sliding assembly (54) is fixed on the third clamping plate (46) and is fixedly connected to the fourth cylinder (51).