TWI843504B - Adhesive tape cutting device and adhesive tape cutting method - Google Patents

Abstract

An adhesive tape cutting device and an adhesive tape cutting method are provided. An adhesive tape is supplied by a feeding device, an adhesive tape length selected mechanism fixes the adhesive tape temporarily and divides the area, a cutting mechanism cuts the adhesive tape to form an adhesive tape segment, and an ejecting mechanism ejecting the adhesive tape segment; The adhesive tape length selected mechanism comprises a stepping rotary table, the circumferential direction of the rotary table is provided with a plurality of spacing positioning block, the positioning block is provided with a cutting slot, two adjacent positioning block is provided with an ejecting slot. When the positioning block moves to the receiving position, it accepts the tape output by the feeding mechanism. A cutting driving device drives the blade to rotate to cut, and the cutting groove is located on the motion path of the blade when it moves to the cutting position. When the ejection slot moves to the ejection position, the ejection block is aligned with the ejection slot. Therefore, through the cooperation of the feeding mechanism, the adhesive tape length selected mechanism, the cutting mechanism and the ejector mechanism, the automatic cutting of the adhesive tape can be realized, which improves the working efficiency, and can ensure the length of the adhesive tape segment is consistent and the incision is neat.

Description

Tape cutting device and tape cutting method

The present invention relates to the field of processing equipment, and specifically to a tape cutting device and a tape cutting method.

In the production process of various products, tape is often needed for connection and fixing. In order to ensure the consistency of product quality and facilitate operation, the tape needs to be cut into tape segments of a certain length and then pasted. The traditional method of cutting tape is to use manual cutting, which is inefficient and difficult to ensure the consistency of tape length. Although some existing tape cutting equipment can realize automatic or semi-automatic tape cutting, which can improve work efficiency to a certain extent, because the tape has a certain toughness and a sticky layer, it is easy to fail to cut, the sticky layer of the tape is adhered to the equipment, etc., which affects the normal continuity of the tape cutting work.

The purpose of the embodiment of the present invention is to provide a tape cutting device and a tape cutting method, which can improve at least part of the above-mentioned defects existing in the prior art.

In a first aspect, an embodiment of the present invention provides a tape cutting device for cutting a tape into tape segments, comprising a feeding mechanism, a tape length fixing mechanism, a cutting mechanism and an ejection mechanism; the feeding mechanism comprises a material tray and a tape guide assembly, and the material tray is wrapped with a tape; the tape length fixing mechanism comprises a turntable and a length fixing drive device, and the length fixing drive device is configured to drive the turntable to rotate step by step, and the turntable has a plurality of spaced positioning blocks on the circumference, and the positioning blocks are provided with cutting grooves, and the angle between the cutting grooves of two adjacent positioning blocks is equal to the step angle of the length fixing drive device, and there is an ejection groove between the two adjacent positioning blocks; the cutting mechanism is provided with a plurality of spaced positioning blocks, and the angle between the cutting grooves of the two adjacent positioning blocks is equal to the step angle of the length fixing drive device, and there is an ejection groove between the two adjacent positioning blocks; On one side of the turntable, the cutting mechanism includes a blade and a cutting drive device, the cutting drive device is connected to the blade and drives the blade to rotate, and the axis of the blade rotation is perpendicular to the axis of the turntable; the ejection mechanism includes an ejection block and an ejection drive device, and the ejection drive device is configured to drive the ejection block to move along the ejection groove to eject the cut tape segment from the turntable; wherein, the turntable has a material receiving position, a cutting position and an ejection position in the circumferential direction; when the positioning block moves to the material receiving position, it receives the tape output by the feeding mechanism; when the cutting groove moves to the cutting position, it is located on the movement path of the blade; when the ejection groove moves to the ejection position, the ejection block is aligned with the ejection groove.

In some embodiments, the cutting mechanism further includes a first mounting seat and a first mounting block; the first mounting seat has a first mounting groove, and the extension direction of the first mounting groove is parallel to the rotation plane of the blade; the first mounting block is connected to the cutting drive device, and the first mounting block is arranged in the first mounting groove and detachably connected to the first mounting seat.

In some embodiments, the first mounting seat also has a first connecting hole, the first mounting block has a second connecting hole, the first connecting hole is an oblong hole and the length direction is parallel to the first mounting groove, the first connecting hole is connected to the first mounting groove; the first mounting seat and the first mounting block are connected by bolts, and the bolts pass through the first connecting hole and the second connecting hole.

In some embodiments, the angle between the first mounting groove and the horizontal plane is a sharp angle.

In some embodiments, the cutting groove is parallel to the rotation plane of the blade when it moves to the cutting position.

In some embodiments, the top block has a top end for contacting the tape segment and a fixed end connected to the top drive device, and the top end has at least two top arms spaced apart, and the width of the top arm gradually decreases from the end close to the fixed end to the end far from the fixed end.

In some embodiments, the end of the top arm that contacts the tape has a slit.

In some embodiments, the end of the positioning block close to the axis of the turntable has a first limiting surface, and the top block has a second limiting surface corresponding to the first limiting surface; wherein, when the top block moves along the ejection groove, the second limiting surface is arranged opposite to the first limiting surface.

In some embodiments, the positioning block has an adhesive surface and a stop step, the adhesive surface is used to receive the tape, and the stop step is arranged on one side of the adhesive surface and protrudes from the adhesive surface along the radial direction of the turntable.

In some embodiments, the feeding mechanism also includes a first main shaft and a damper, the material tray is connected to the first main shaft and rotates with the first main shaft as the rotation axis, and the damper is connected to the first main shaft.

In some embodiments, the tape cutting device also includes a control circuit, which is electrically connected to the fixed-length drive device, the cutting drive device, and the ejection drive device and controls the working status of the fixed-length drive device, the cutting drive device, and the ejection drive device.

In some embodiments, the feeding mechanism further includes a tape detector, which is disposed on the path of the tape from the material tray to the turntable; the tape detector is electrically connected to the control circuit, and the control circuit is further configured to control the working state of at least one of the fixed-length drive device, the cutting drive device, and the ejection drive device according to the signal of the tape detector.

In some embodiments, the tape cutting device further includes a turntable position detection assembly, which is disposed on one side of the turntable, and the turntable position detection assembly is electrically connected to the control circuit; the control circuit is also configured to control the working state of at least one of the fixed length drive device, the cutting drive device and the ejection drive device according to the signal of the turntable position detection assembly.

In some embodiments, the turntable position detection assembly includes an optical fiber sensor, and the turntable has a plurality of sensing holes corresponding to the optical fiber sensor, and the sensing holes are arranged on the line between the cutting groove and the axis of the turntable.

In some embodiments, the ejection mechanism further includes a second mounting seat, and the ejection drive device is mounted on the second mounting seat; the second mounting seat also has a second mounting groove, and the turntable position detection assembly is mounted in the second mounting groove.

In some embodiments, the turntable detection assembly includes an optical fiber sensor, a second mounting block and a third mounting block, the second mounting groove extends in a direction perpendicular to the axis of the turntable, and the second mounting block is disposed in the second mounting groove; the second mounting block has a third mounting groove, the third mounting groove extends in a direction perpendicular to the second mounting groove and the axis of the turntable, the third mounting block is disposed in the third mounting groove, and the optical fiber sensor is connected to the third mounting block.

In some embodiments, the fixed-length drive device drives the turntable to rotate a step angle according to a preset step cycle, and the step cycle includes the movement time of the turntable rotation and the dwell time of the turntable stop; wherein the step cycle is equal to the cycle of the cutting drive device driving the blade to rotate one circle, and when the tape fixed-length mechanism is in the dwell time, the blade passes through the cutting groove.

In some embodiments, when the tape fixed length mechanism is in the dwell time, the ejection drive device drives the ejector block to complete a reciprocating motion along the ejection groove.

In some embodiments, the rubber belt length-fixing mechanism further includes a track block, a fixed block, and a cam bearing follower; the track block has an annular track groove, and the track groove is coaxially arranged with the turntable; the fixed block is connected to the turntable and moves with the turntable; the cam bearing follower is rotationally connected to the fixed block, and the cam bearing follower is arranged in the track groove and rolls along the surface of the track groove.

In a second aspect, the embodiment of the present invention further provides a tape cutting method, which is used in the tape cutting device as described in the first aspect, and the method comprises the following steps: pulling out the free end of the tape and pasting it to the positioning block through the tape guide assembly; the fixed-length drive device drives the turntable to rotate, so that the tape moves from the material receiving position to the cutting position, and the cutting drive device drives the tape to move from the material receiving position to the cutting position; The movable blade rotates and cuts the tape into the tape segments; the fixed-length drive device drives the turntable to rotate, so that the tape segment moves to the ejection position, and the ejection drive device drives the ejection block to move along the ejection groove to eject the tape segment from the turntable; and, after removing the tape segment from the ejection block, the ejection drive device drives the ejection block to reset.

The embodiment of the present invention provides a tape cutting device and a tape cutting method, wherein the tape is supplied by a feeding device, the tape length fixing mechanism temporarily fixes and divides the tape into regions, the cutting mechanism cuts the tape into tape segments, and the ejecting mechanism ejects the tape segments; the tape length fixing mechanism comprises a step-by-step rotating turntable, and the turntable has a plurality of intervals arranged on the circumference thereof. The positioning block is provided with a cutting groove, and there is an ejection groove between two adjacent positioning blocks; when the positioning block moves to the material receiving position, it receives the tape output by the feeding mechanism; the cutting drive device drives the blade to rotate for cutting, and when the cutting groove moves to the cutting position, it is located on the movement path of the blade; when the ejection groove moves to the ejection position, the ejection block is aligned with the ejection groove. Therefore, through the cooperation of the feeding mechanism, the tape length fixing mechanism, the cutting mechanism and the ejection mechanism, the automatic cutting of the tape can be realized, the work efficiency is improved, and the length of the tape segment can be guaranteed to be consistent and the cut is neat.

10: Feeding mechanism

11: Material tray

12: Tape guide assembly

121: Transition axis

122: Limit block

13: Tape detector

14: First spindle

15: Damper

20: Tape fixed length mechanism

21: Turntable

211: Positioning block

2111: Cutting groove

2112: First limit surface

2113: Adhesive surface

2114: Stop the steps

212: Ejection groove

213:Sensor hole

22: Fixed-length drive device

23: Track block

231: Track Groove

24: Cam bearing follower

25:Fixed block

30: Cutting mechanism

31: Blade

32: Cutting drive device

33: First mounting seat

331: First installation slot

332: First connection hole

34: First mounting block

341: Second connection hole

40: Ejection mechanism

41: Top block

411: Top end

4111: Top arm

4112: Narrow seam

412: Fixed end

413: Second limit surface

42: Ejector drive device

43: Second mounting seat

431: Second mounting slot

50: Turntable position detection component

51: Fiber optic sensor

52: Second mounting block

521: Third installation slot

53: The third mounting block

60: Tape

70: Control circuit

S100~S400: Steps

Figure 1 is a three-dimensional structural schematic diagram of the tape cutting device of the embodiment of the present invention; Figure 2 is a front view of the tape cutting device of the embodiment of the present invention; Figure 3 is a top view of the tape cutting device of the embodiment of the present invention; Figure 4 is a three-dimensional structural schematic diagram of the feeding mechanism of the embodiment of the present invention; Figure 5 is a three-dimensional structural schematic diagram of the tape length-fixing mechanism and the ejection mechanism of the embodiment of the present invention; Figure 6 is a front view of the tape length-fixing mechanism and the ejection mechanism of the embodiment of the present invention; Figure 7 is a side view of the tape length-fixing mechanism and the ejection mechanism of the embodiment of the present invention; Figure 8 is a partial enlarged view of the A part of the tape length-fixing mechanism and the ejection mechanism of the embodiment of the present invention. Fig. 9 is a three-dimensional schematic diagram of the matching relationship between the positioning block and the top block of the embodiment of the present invention; Fig. 10 is a front view schematic diagram of the matching relationship between the positioning block and the top block of the embodiment of the present invention; Fig. 11 is a three-dimensional structural schematic diagram of the cutting mechanism of the embodiment of the present invention; Fig. 12 is a front view of the cutting mechanism of the embodiment of the present invention; Fig. 13 is a schematic diagram of the matching relationship between the cutting mechanism and the turntable of the embodiment of the present invention; Fig. 14 is a three-dimensional structural schematic diagram of the ejection mechanism of the embodiment of the present invention; Fig. 15 is a control schematic block diagram of the tape cutting device of the embodiment of the present invention; Fig. 16 is a flow diagram of the tape cutting method of the embodiment of the present invention.

The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. For those skilled in the art, the present invention can be fully understood without the description of these details. In order to avoid confusion about the essence of the present invention, known methods, processes, procedures, components and circuits are not described in detail.

In addition, persons of ordinary skill in the art should understand that the figures provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, the words "include", "including" and similar words in the specification should be interpreted as inclusive rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

In the description of the present invention, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

1 to 3 are respectively a schematic diagram of the three-dimensional structure, a front view and a top view of the tape cutting device of the embodiment of the present invention. Referring to FIG. 1 to FIG. 3, the tape cutting device includes a feeding mechanism 10, a tape fixed length mechanism 20, a cutting mechanism 30 and an ejection mechanism 40. The feeding mechanism 10 is used to supply the tape 60; the tape lengthening mechanism 20 receives the tape 60 delivered by the feeding mechanism 10, temporarily fixes the tape 60 and positions the length of the tape 60; the cutting mechanism 30 includes a blade 31, which cuts the tape 60 attached to the tape lengthening mechanism 20 to obtain a tape segment with a predetermined length; the ejection mechanism 40 ejects the cut tape segment from the tape lengthening mechanism 20 for use by operators or other production equipment. The automatic cutting of the tape 60 can be achieved through the cooperation of the feeding mechanism 10, the tape lengthening mechanism 20, the cutting mechanism 30 and the ejection mechanism 40.

FIG4 is a schematic diagram of the three-dimensional structure of the feeding mechanism 10 of the embodiment of the present invention. Referring to FIG1 to FIG4, the feeding mechanism 10 includes a material tray 11 and a tape guide assembly 12, and a long tape 60 is wound around the outer periphery of the material tray 11. The material tray 11 can rotate around the first main shaft 14. After the free end of the tape 60 is pulled out of the material tray 11, it passes through the tape guide assembly 12 and is pulled to the tape length fixing mechanism 20. When the tape length fixing mechanism 20 drives the tape 60 to move, the tape 60 pulls the material tray 11 to rotate to realize the feeding of the tape 60. The tape guide assembly 12 is used to adjust the path of the free end of the tape 60 and keep the tape 60 at a certain tension to prevent the tape 60 from sticking during the conveying process. The feeding mechanism 10 may also include a damper 15, which is connected to the first spindle 14. By providing the damper 15, the torque required for the tape 60 to pull the material tray 11 to rotate can be increased to prevent the material tray 11 from generating a large rotation acceleration due to inertia and not matching the working state of the tape fixed length mechanism 20.

The tape guide assembly 12 includes a transition shaft 121 and two limit blocks 122. The two limit blocks 122 are arranged on the transition shaft 121 and are arranged along the axial interval of the transition shaft 121. The distance between the two limit blocks 122 matches the width of the tape 60. The tape 60 passes through the area between the two limit blocks 122 and slides along the surface of the transition shaft 121. The limit blocks 122 can limit the direction of the tape 60 to ensure the uniformity of the length and shape of the cut tape segment.

Fig. 5 to Fig. 8 are schematic diagrams of the structure of the tape fixed length mechanism 20 and the ejection mechanism 40, wherein Fig. 8 is a partial enlarged schematic diagram of A in Fig. 5. The tape fixed length mechanism 20 is arranged on one side of the feeding mechanism 10. Referring to Fig. 5 to Fig. 8, the tape fixed length mechanism 20 includes a turntable 21 and a fixed length driving device 22, and the fixed length driving device 22 is connected to the turntable 21 and drives the turntable 21 to rotate in a step-by-step manner. The fixed length driving device 22 may include a stepping motor, a servo motor or other driving devices capable of driving the turntable 21 to rotate in a step-by-step manner. 8 to 10 , the rotating disk 21 has a plurality of spaced positioning blocks 211 on its circumference, and the positioning blocks 211 are provided with cutting grooves 2111, which extend along the radial direction of the rotating disk 21. The angle between the cutting grooves 2111 of two adjacent positioning blocks 211 is equal to the step angle of the fixed-length driving device 22. There is an ejection groove 212 between the two adjacent positioning blocks 211. When the tape 60 is driven by the turntable 21 and wrapped around the turntable 21, the adhesive layer of the tape 60 adheres to the surface of the positioning block 211, and the tape 60 is suspended in the area corresponding to the ejection groove 212 without contacting the turntable 21, thereby reducing the contact area between the tape 60 and the turntable 21, making it easier to remove the cut tape segment.

Referring to Fig. 1 to Fig. 3, the rotating disk 21 has a material receiving position, a cutting position and an ejection position which are arranged at predetermined angles in the circumferential direction. When the tape 60 attached to the rotating disk 21 moves with the rotating disk 21, the tape 60 passes through the material receiving position, the cutting position and the ejection position in sequence. The positioning block 211 has an adhesive surface 2113. The tape 60 drawn from the feeding mechanism 10 is adhered to the adhesive surface 2113 of the positioning block 211 at the material receiving position. That is, each positioning block 211 receives the tape 60 output by the feeding mechanism 10 when it moves to the material receiving position. The cutting mechanism 30 is disposed on one side of the turntable 21. When the cutting groove 2111 of each positioning block 211 rotates to the cutting position along with the turntable 21, the cutting groove 2111 is located on the movement path of the blade 31. The blade 31 passes through the cutting groove 2111 and cuts the tape 60 from the position corresponding to the cutting groove 2111. The ejection mechanism 40 is arranged corresponding to the ejection position. The ejection mechanism 40 includes an ejection block 41 and an ejection drive device 42. The ejection drive device 42 drives the ejection block 41 to move linearly. When the turntable 21 rotates to move each ejection slot 212 to the ejection position, the ejection block 41 is aligned with the ejection slot 212. The ejection drive device 42 drives the ejection block 41 to move along the ejection slot 212 to eject the cut tape segment from the turntable 21.

The fixed-length drive device 22 drives the turntable 21 to rotate step by step, so that each time the turntable 21 rotates a step angle, the cutting groove 2111 corresponding to the cutting position and the ejection groove 212 corresponding to the ejection position are switched, that is, each time the turntable 21 rotates a step angle, a new tape segment is cut and another tape segment is ejected.

When the positioning block 211 receives the tape 60, the tape 60 is adhered to the pasting surface 2113. In some embodiments, referring to FIG. 8 and FIG. 9, the positioning block 211 has a stop step 2114, which is arranged on one side of the pasting surface 2113 and protrudes from the pasting surface 2113 along the radial direction of the turntable 21, so as to limit the position of the tape 60 and ensure the shape of the tape 60 after cutting.

In some embodiments, referring to FIG. 7 , the tape length-fixing mechanism 20 further includes a track block 23, a fixed block 25, and a cam bearing follower 24. The track block 23 has an annular track groove 231, and the track groove 231 is coaxially arranged with the turntable 21. The fixed block 25 is connected to the turntable 21 and moves with the turntable 21. The cam bearing follower 24 is rotationally connected to the fixed block 25, and is arranged in the track groove 231 and rolls along the surface of the track groove 231. The cam bearing follower 24 may include a plurality of cam bearing followers 24, and the plurality of cam bearing followers 24 are evenly distributed at the circumferential edge of the turntable 21. This design can improve the stability of the turntable 21 during rotation.

Figures 11 to 13 are schematic diagrams of the structure of the cutting mechanism 30. The cutting mechanism 30 is disposed on one side of the turntable 21. The cutting mechanism 30 includes a cutting drive device 32. The cutting drive device 32 is connected to the blade 31 and drives the blade 31 to rotate. The cutting drive device 32 may include a motor. Referring to Figures 1 to 3 and Figure 13, the axis of rotation of the blade 31 is perpendicular to the axis of the turntable 21. The blade 31 cuts through the cutting groove 2111 along the thickness direction of the turntable 21 to cut the tape 60. The two ends of the cutting groove 2111 penetrate the two end surfaces of the turntable 21 along the thickness direction to ensure that the blade 31 can pass smoothly. Compared with the method of driving the blade 31 to cut the tape 60 in a linear motion, the embodiment of the present invention cuts the tape 60 by rotating the blade 31. The contact area between the blade 31 and the tape 60 is smaller, which can better ensure that the tape 60 is cut smoothly and prevent the tape 60 from sliding on the surface of the positioning block 211 due to pressure. Preferably, the cutting groove 2111 is parallel to the rotation plane of the blade 31 when it moves to the cutting position, and the blade 31 is perpendicular to the surface of the tape 60 when cutting the tape 60, which can ensure the neatness of the cut of the tape segment and avoid the interference between the side wall of the cutting groove 2111 and the movement of the blade 31.

The fixed length drive device 22 drives the turntable 21 to rotate a step angle according to a preset step cycle, and each step cycle includes the movement time of the turntable 21 rotating and the dwell time of the turntable 21 stopping. The step cycle is equal to the cycle of the cutting drive device 32 driving the blade 31 to rotate one circle, and the cutting drive device 32 is configured to drive the blade 31 to pass through the cutting groove 2111 when the tape fixed length mechanism 20 is in the dwell time, and the time for the blade 31 to pass through the cutting groove 2111 is equal to or slightly shorter than the dwell time. In addition, the ejection drive device 42 is also configured to drive the ejector block 41 to eject the tape 60 and then reset when the tape fixed length mechanism 20 is in the dwell time, that is, the ejector block 41 completes a reciprocating motion along the ejection groove 212. Through the cooperation of the fixed length drive device 22, the cutting drive device 32, and the ejection drive device 42, the cooperation relationship between the movement of the blade 31, the movement of the ejector block 41, and the movement of the turntable 21 can be ensured to avoid interference, and at the same time, the efficiency of the cutting work can be ensured. Referring to FIG. 15 , the tape cutting device also includes a control circuit 70, which is electrically connected to the tape length fixing mechanism 20, the cutting mechanism 30 and the ejection mechanism 40 to control the working state and coordination relationship of the tape length fixing mechanism 20, the cutting mechanism 30 and the ejection mechanism 40.

In some embodiments, referring to FIG. 11 and FIG. 12 , the cutting mechanism 30 further includes a first mounting seat 33 and a first mounting block 34, the first mounting block 34 is connected to the cutting drive device 32, and the cutting drive device 32 is mounted on the first mounting seat 33 through the first mounting block 34. The first mounting seat 33 has a first mounting groove 331, and the first mounting block 34 is disposed in the first mounting groove 331 and is detachably connected to the first mounting seat 33. The extension direction of the first mounting groove 331 is parallel to the rotation plane of the blade 31, and is also parallel to the cutting groove 2111 when the blade 31 moves to the cutting position. By adjusting the position of the first mounting block 34 in the first mounting groove 331, the position of the blade 31 can be adjusted so that the blade 31 can extend into the cutting groove 2111 to cut the tape 60 during the rotation process. The first mounting block 34 and the first mounting seat 33 can be connected by bolts. The first mounting seat 33 is provided with a first connecting hole 332, and the first mounting block 34 is provided with a second connecting hole 341. The first connecting hole 332 is connected to the first mounting groove 331. The first connecting hole 332 is an oblong hole and its length direction is parallel to the first mounting groove 331, thereby realizing that the position of the blade 31 can be adjusted.

In some embodiments, the angle between the first mounting groove 331 and the horizontal plane is an acute angle, the rotation plane of the blade 31 has a certain inclination of the tape 60 relative to the horizontal plane, and the opening of the cutting groove 2111 at the cutting position is slightly inclined upward. As a result, the position of the blade 31 can be closer to the turntable 21, which can reduce the interference between the first mounting seat 33 and the cutting drive device 32 and the turntable 21, and at the same time is conducive to ensuring the cutting effect of the tape 60.

Referring to Figures 5 to 10 and 14, the ejection drive device 42 may include a cylinder, and the ejection drive device 42 drives the ejection block 41 to move along a straight line. When the ejection slot 212 on the turntable 21 rotates to the ejection position, the ejection drive device 42 drives the ejection block 41 to enter the ejection slot 212 and eject the tape segment; after the tape segment is removed, the ejection drive device 42 drives the ejection block 41 to exit the ejection slot 212, and then the fixed-length drive device 22 continues to drive the turntable 21 to rotate.

As shown in Figures 9 and 10, the ejector block 41 has an ejection end 411 for contacting the tape segment and a fixed end 412 connected to the ejection drive device 42. The ejection end 411 has at least two spaced ejection arms 4111, and the end surface of the ejection arm 4111 is used to contact the tape segment to drive the tape segment off the turntable 21. The distance between the two ejection arms 4111 is slightly smaller than the width of the ejection groove 212, which can ensure the supporting effect of the ejector block 41 on the tape segment and prevent the tape segment from falling. The width of the top arm 4111 decreases from the end close to the fixed end 412 to the end far from the fixed end 412, thereby ensuring the stability of the top arm 4111 and preventing the top arm 4111 from breaking at the root, and reducing the contact area between the top arm 4111 and the tape segment, making it easier to remove the tape segment from the top block 41.

Furthermore, in this embodiment, the end of the top arm 4111 that contacts the tape 60 has a slit 4112, so that the end surface of the top arm 4111 forms a hollow structure. Thus, under the premise of ensuring stable support for the tape 60, the contact area between the top block 41 and the adhesive layer of the tape segment can be further reduced, so as to facilitate the removal of the tape segment. Optionally, the surface of the top arm 4111 can also be provided with an anti-adhesive layer made of an anti-adhesive material, which can further reduce the adhesion between the adhesive layer of the tape segment and the top arm 4111.

In some embodiments, the end of the positioning block 211 close to the axis of the rotating disk 21 has a first limiting surface 2112, and the ejection block 41 has a second limiting surface 413 corresponding to the first limiting surface 2112. When the ejection block 41 is aligned with the ejection groove 212, the second limiting surface 413 is arranged opposite to the first limiting surface 2112; when the ejection block 41 moves along the ejection groove 212, the second limiting surface 413 and the first limiting surface 2112 can cooperate to limit the ejection height of the ejection block 41.

Referring again to FIG. 4 and FIG. 15 , in some embodiments, the feeding mechanism 10 may further include a tape detector 13, which is electrically connected to the control circuit 70. The tape detector 13 is disposed on the path of the tape 60 from the material tray 11 to the turntable 21, and can detect the amount of the tape 60 used, so as to remind the operator to load a new tape 60 into the feeding mechanism 10 when the tape 60 is used up. The control circuit 70 is also configured to control the working state of at least one of the fixed-length drive device 22, the cutting drive device 32 and the ejection drive device 42 according to the signal of the tape detector 13. For example, the control circuit 70 can control the fixed-length drive device 22, the cutting drive device 32 and the ejection drive device 42 to stop working when the tape detector 13 sends a signal indicating that the tape 60 has been used up. In one embodiment, the tape detector 13 may include a photoelectric sensor, and the transmission path of the tape 60 intersects with the optical path of the photoelectric sensor.

Referring again to FIGS. 1 to 3, 5 to 8 and 15, the tape cutting device further includes a turntable position detection assembly 50 for detecting the position of the turntable 21 when it rotates, and the turntable position detection assembly 50 is disposed on one side of the turntable 21. In one embodiment, the turntable position detection assembly 50 includes an optical fiber sensor 51, and the turntable 21 has a plurality of sensing holes 213 corresponding to the optical fiber sensor 51, and the sensing holes 213 correspond to the cutting grooves 2111 one by one, and each sensing hole 213 is disposed on the line between the cutting groove 2111 and the axis of the turntable 21. The turntable position detection assembly 50 is electrically connected to the control circuit 70, and the control circuit 70 is also configured to control the working state of at least one of the fixed length drive device 22, the cutting drive device 32 and the ejection drive device 42 according to the signal of the turntable position detection assembly 50. For example, the control circuit 70 can control the ejection drive device 42 to drive the ejection block 41 to eject the tape segment according to the signal sent by the tape detector 13 indicating that the ejection slot 212 moves to the ejection position.

In one embodiment, the ejection mechanism 40 further includes a second mounting seat 43, the ejection drive device 42 is mounted on the second mounting seat 43, and the turntable position detection assembly 50 can also be mounted on the second mounting seat 43. The second mounting seat 43 also has a second mounting groove 431, and the turntable position detection assembly 50 is mounted in the second mounting groove 431, thereby facilitating the positioning of the turntable 21 detection assembly.

Furthermore, as shown in FIGS. 5 to 7, the detection assembly of the turntable 21 further includes a second mounting block 52 and a third mounting block 53, and the extension direction of the second mounting groove 431 is perpendicular to the axis of the turntable 21, for example, the extension direction of the second mounting groove 431 can be a vertical direction. The second mounting block 52 is arranged in the second mounting groove 431. The second mounting block 52 has a third mounting groove 521, and the extension direction of the third mounting groove 521 is perpendicular to the extension direction of the second mounting groove 431 and the axis of the turntable 21. The third mounting block 53 is arranged in the third mounting groove 521, and the optical fiber sensor 51 is connected to the third mounting block 53. Thus, the position adjustment of the optical fiber sensor 51 in the height direction and the horizontal direction can be realized.

The embodiment of the present invention also relates to a tape cutting method, which is used in the tape cutting device in at least some of the embodiments above to cut the tape 60. Referring to FIG. 16 , the method includes the following steps S100 to S400:

Step S100, pull out the free end of the tape 60 and stick it to the positioning block 211 through the tape guide assembly 12.

When using a new roll of tape 60, the free end of the tape 60 can be pulled out manually or by other cooperating devices, passed through the tape guide assembly 12 in a predetermined direction, and then the free end of the tape 60 is adhered to a predetermined position on the positioning block 211.

Step S200, the fixed-length drive device 22 drives the turntable 21 to rotate, so that the tape 60 moves from the material receiving position to the cutting position, and the cutting drive device 32 drives the blade 31 to rotate and pass through the cutting groove 2111, cutting the tape 60 into tape segments.

Step S300, the fixed-length drive device 22 drives the turntable 21 to rotate, so that the rubber belt segment moves to the ejection position, and the ejection drive device 42 drives the ejection block 41 to move along the ejection groove 212 to eject the rubber belt segment from the turntable 21.

Step S400: After removing the tape section on the top block 41, the ejection drive device 42 drives the top block 41 to reset.

When the tape 60 is not used up, steps S200 to S400 are performed in a loop to perform continuous tape cutting. It can be understood that during the working process of the tape cutting device, steps S200 to S400 are performed simultaneously at the material receiving position, the cutting position and the ejection position.

The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For technical personnel in this field, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

10: Feeding mechanism

11: Material tray

121: Transition axis

122: Limit block

13: Tape detector

14: First spindle

15: Damper

20: Tape fixed length mechanism

22: Fixed-length drive device

30: Cutting mechanism

40: Ejection mechanism

60: Tape

Claims (19)

A tape cutting device is used for cutting a tape (60) into tape segments, comprising: a feeding mechanism (10), comprising a material tray (11) and a tape guide assembly (12), wherein the material tray (11) is wrapped with the tape (60); a tape length fixing mechanism (20), comprising a rotating disk (21) and a length fixing drive device (22), wherein the length fixing drive device (22) is configured to drive the rotating disk (21) to rotate step by step, wherein the rotating disk (21) has a plurality of positioning blocks (211) arranged at intervals on its circumference, and the positioning blocks (211) are provided with cutting grooves (2111) ), the angle between the cutting grooves (2111) of the two adjacent positioning blocks (211) is equal to the pitch angle of the fixed-length driving device (22), and there is an ejection groove (212) between the two adjacent positioning blocks (211); a cutting mechanism (30) is arranged on one side of the rotating disk (21), and the cutting mechanism (30) comprises a blade (31) and a cutting driving device (32), the cutting driving device (32) is connected to the blade (31) and drives the blade (31) to rotate, and the axis of rotation of the blade (31) is parallel to the axis of the rotating disk (21). and an ejection mechanism (40), comprising an ejection block (41) and an ejection drive device (42), wherein the ejection drive device (42) is configured to drive the ejection block (41) to move along the ejection groove (212) to eject the cut tape segment from the turntable (21), the ejection block (41) having an ejection end (411) for contacting the tape segment and a fixed end (412) connected to the ejection drive device (42), the ejection end (411) having at least two ejection arms (4111) spaced apart, the ejection arms (4111) The width of the rotating disk (21) gradually decreases from the end close to the fixed end (412) to the end far from the fixed end (412); wherein the rotating disk (21) has a material receiving position, a cutting position and an ejection position in the circumferential direction; when the positioning block (211) moves to the material receiving position, it receives the tape (60) output by the feeding mechanism (10); when the cutting groove (2111) moves to the cutting position, it is located on the movement path of the blade (31); when the ejection groove (212) moves to the ejection position, the ejection block (41) is aligned with the ejection groove (212). The tape cutting device as claimed in claim 1, wherein the cutting mechanism (30) further comprises: a first mounting seat (33) having a first mounting groove (331), wherein the extension direction of the first mounting groove (331) is parallel to the rotation plane of the blade (31); and a first mounting block (34) connected to the cutting drive device (32), wherein the first mounting block (34) is disposed in the first mounting groove (331) and is detachably connected to the first mounting seat (33). The tape cutting device as described in claim 2, wherein the first mounting seat (33) further has a first connecting hole (332), the first mounting block (34) has a second connecting hole (341), the first connecting hole (332) is an oblong hole and the length direction is parallel to the first mounting groove (331), the first connecting hole (332) is connected to the first mounting groove (331); the first mounting seat (33) and the first mounting block (34) are connected by bolts, and the bolts pass through the first connecting hole (332) and the second connecting hole (341). The tape cutting device as described in claim 2, wherein the angle between the first mounting groove (331) and the horizontal plane is a sharp angle. A tape cutting device as described in any one of claims 1 to 4, wherein the cutting groove (2111) is parallel to the rotation plane of the blade (31) when it moves to the cutting position. The tape cutting device as described in claim 1, wherein the end of the top arm (4111) in contact with the tape (60) has a slit (4112). The tape cutting device as described in any one of claims 1 to 4, wherein the end of the positioning block (211) close to the axis of the turntable (21) has a first limiting surface (2112), and the top block (41) has a second limiting surface (413) corresponding to the first limiting surface (2112); When the top block (41) moves along the ejection groove (212), the second limiting surface (413) is arranged opposite to the first limiting surface (2112). The tape cutting device as described in any one of claims 1 to 4, wherein the positioning block (211) has a pasting surface (2113) and a stop step (2114), the pasting surface (2113) is used to receive the tape (60), and the stop step (2114) is arranged on one side of the pasting surface (2113) and protrudes from the pasting surface (2113) along the radial direction of the turntable (21). The tape cutting device as described in any one of claims 1 to 4, wherein the feeding mechanism (10) further comprises a first main shaft (14) and a damper (15), the material tray (11) is connected to the first main shaft (14) and rotates with the first main shaft (14) as a rotation axis, and the damper (15) is connected to the first main shaft (14). The tape cutting device as described in any one of claims 1 to 4, wherein the tape cutting device further comprises: a control circuit (70), wherein the control circuit (70) is electrically connected to the fixed-length drive device (22), the cutting drive device (32) and the ejection drive device (42) and controls the working states of the fixed-length drive device (22), the cutting drive device (32) and the ejection drive device (42). The tape cutting device as described in claim 10, wherein the feeding mechanism (10) further comprises a tape detector (13), the tape detector (13) being arranged on the path of the tape (60) from the material tray (11) to the turntable (21); the tape detector (13) being electrically connected to the control circuit (70), and the control circuit (70) being further configured to control the working state of at least one of the fixed length drive device (22), the cutting drive device (32) and the ejection drive device (42) according to the signal of the tape detector (13). The tape cutting device as claimed in claim 10, wherein the tape cutting device further comprises: A turntable position detection assembly (50) is arranged on one side of the turntable (21), and the turntable position detection assembly (50) is electrically connected to the control circuit (70); the control circuit (70) is also configured to control the working state of at least one of the fixed length drive device (22), the cutting drive device (32) and the ejection drive device (42) according to the signal of the turntable position detection assembly (50). The tape cutting device as described in claim 12, wherein the turntable position detection assembly (50) includes an optical fiber sensor (51), the turntable (21) has a plurality of sensing holes (213) corresponding to the optical fiber sensor (51), and the sensing holes (213) are arranged on the line between the cutting groove (2111) and the axis of the turntable (21). The tape cutting device as described in claim 12, wherein the ejection mechanism (40) further comprises a second mounting seat (43), the ejection drive device (42) is mounted on the second mounting seat (43); the second mounting seat (43) further has a second mounting groove (431), and the turntable position detection assembly (50) is mounted in the second mounting groove (431). The tape cutting device as described in claim 14, wherein the detection assembly of the turntable (21) comprises an optical fiber sensor (51), a second mounting block (52) and a third mounting block (53), the extension direction of the second mounting groove (431) is perpendicular to the axis of the turntable (21), and the second mounting block (52) is arranged in the second mounting groove (431); the second mounting block (52) has a third mounting groove (521), the extension direction of the third mounting groove (521) is perpendicular to the extension direction of the second mounting groove (431) and the axis of the turntable (21), the third mounting block (53) is arranged in the third mounting groove (521), and the optical fiber sensor (51) is connected to the third mounting block (53). A tape cutting device as described in any one of claims 1 to 4, wherein the fixed-length drive device (22) drives the turntable (21) to rotate a step angle according to a preset step cycle, and the step cycle includes the movement time of the turntable (21) rotating and the dwell time of the turntable (21) stopping; wherein the step cycle is equal to the cycle of the cutting drive device (32) driving the blade (31) to rotate one circle, and when the tape fixed-length mechanism (20) is in the dwell time, the blade (31) passes through the cutting groove (2111). The tape cutting device as described in claim 14, wherein when the tape length-fixing mechanism (20) is in the dwell time, the ejection drive device (42) drives the ejection block (41) to complete a reciprocating motion along the ejection groove (212). The tape cutting device as claimed in any one of claims 1 to 4, wherein the tape length fixing mechanism (20) further comprises: a track block (23), the track block (23) having an annular track groove (231), the track groove (231) being coaxially arranged with the turntable (21); a fixed block (25), connected to the turntable (21) and moving with the turntable (21); and a cam bearing follower (24), rotatably connected to the fixed block (25), the cam bearing follower (24) being arranged in the track groove (231) and rolling along the surface of the track groove (231). A tape cutting method, used in a tape cutting device as described in any one of claims 1 to 18, the tape cutting method comprising: pulling out the free end of a tape (60) and pasting it to a positioning block (211) through a tape guide assembly (12); a fixed-length drive device (22) drives a turntable (21) to rotate, so that the tape (60) moves from a material receiving position to a cutting position, and a cutting drive device (32) drives a blade (31) to rotate and pass through a cutting groove. (2111), cutting the tape into tape segments; The fixed-length drive device (22) drives the turntable (21) to rotate, so that the tape segment moves to the ejection position, and the ejection drive device (42) drives the ejection block (41) to move along the ejection groove (212) to eject the tape segment from the turntable (21); and after removing the tape segment from the ejection block (41), the ejection drive device (42) drives the ejection block (41) to reset.