A rework apparatus for foam double-sided tape assemblies

Abstract

The application discloses a foam double-sided adhesive tape assembly rework equipment, a rack; a conveying device comprising a conveying belt rotating on the rack, and positioning areas being distributed on a conveying surface at intervals; a movable clamping device comprising two movable clamping assemblies, each of the two movable clamping assemblies comprising a movable clamping unit, a guide rail, a moving part moving along the guide rail, a clamping part connected with the moving part through an elastic part, and a guide part fixedly connected with the guide rail; and a driving device comprising a driving source, a connecting assembly and a transmission assembly. The foam double-sided adhesive tape assembly rework equipment drives the moving part to move circumferentially along the guide rail while driving the conveying belt to move at intervals, and the moving part drives the clamping part to move, the elastic part and the guide part are matched, the immediately adjacent tear strip on the output end of the conveying belt is torn down, and thus the tearing operation is automatically completed, labor cost is reduced, operation is convenient, and rework efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of foam double-sided tape rework technology, and in particular to a rework equipment for foam double-sided tape assemblies. Background Technology

[0002] Foam double-sided tape is an adhesive tape with a foam layer as the base material and pressure-sensitive adhesive coated on both opposite surfaces along its thickness direction. It is widely used for fixing back covers, screen frames, and batteries in electronic products, offering excellent cushioning performance. However, in actual use, misalignment or damage to the workpiece is unavoidable, requiring the tape to detach from the workpiece surfaces on both sides—a process known as rework. Traditional foam tapes cannot meet these rework requirements.

[0003] To facilitate rework, a special double-sided foam tape is typically provided, such as... Figure 1 and Figure 2 As shown, the tape includes a tear-off layer. Both surfaces of the tear-off layer in its thickness direction are connected to a pressure-sensitive adhesive layer via a foam layer. A glass sheet is fixed to the side of the pressure-sensitive adhesive layer facing away from the foam layer. The tear-off layer includes tear strips arranged side-by-side, with adjacent tear strips connected by a point-break line. One end of each tear strip extends to the outer edge of the circumferential outer edge of the foam layer. This reworkable double-sided foam tape, with the point-break line connection between adjacent tear strips, facilitates separation of the tear strips. When the component is defective, an extension strip of the same length as the tear strip is fixed to the portion of the tear strip extending beyond the circumferential outer edge of the foam layer by adhesive or other means. By pulling the tear strips one by one between the two foam layers, the foam layers on both surfaces of the tear-off layer are separated, achieving the purpose of rework and reducing the amount of manual separation of the foam layers during rework. When the component is qualified, the protruding portion of the tear strip extending beyond the circumferential outer edge of the foam layer is cut off to obtain the final product.

[0004] However, currently, when separating the foam layers of the aforementioned reworked double-sided foam tape for rework, it is necessary to manually pull the extension strips on the tear strip one by one to separate the tear strip from the two foam layers. This method is inefficient and increases labor costs and the workload of workers due to manual operation. Therefore, it is necessary to provide an automated rework equipment for double-sided foam tape. Summary of the Invention

[0005] The purpose of this invention is to overcome the defects in the prior art and provide a rework equipment for foam double-sided tape assemblies that automatically realizes the tearing and separation of tear strips for rework processing.

[0006] To achieve the above-mentioned technical effects, the technical solution of the present invention is: a rework equipment for foam double-sided adhesive tape assemblies, comprising:

[0007] frame;

[0008] A transmission device, comprising a transmission belt rotating on the frame, the transmission belt having a horizontal transmission surface, and positioning areas equally spaced along its length direction provided on the transmission surface, foam double-sided tape assemblies equally spaced in the positioning areas, the extension strip ends of each foam double-sided tape assembly extending outside the positioning area and located on the same side of the transmission belt.

[0009] A movable clamping device includes two movable clamping assemblies whose horizontal projections overlap and are respectively disposed on the upper and lower sides of the transmission surface. Each movable clamping assembly includes a movable clamping unit and a closed-loop guide rail. The movable clamping unit includes a movable member that moves along the guide rail, a clamping member that is connected to the movable member through an elastic member and slides in the vertical direction, and a guide member that is fixedly connected to the guide rail. When the movable members of the two movable clamping assemblies drive the clamping members to move closer together as they pass through the guide member, they clamp the extension strip adjacent to the output end of the transmission belt and pull the extension strip to tear the strip. After passing through the guide member, they move further apart to release the extension strip.

[0010] A driving device, comprising a driving source, a connecting assembly disposed between the driving source and one of the moving parts, and a transmission assembly disposed between the driving source and the conveyor belt, wherein when the moving part moves one revolution along the guide rail, the length of the rotation path of the outer surface of the conveyor belt is equal to the spacing between adjacent tear strips in the foam double-sided adhesive tape assembly.

[0011] Preferably, in order to drive the moving part to move circumferentially along the guide rail, the driving source includes a motor fixed to the frame, and the connecting assembly includes a sliding tube and a sliding rod that are slidably engaged. One of the sliding tube and the sliding rod is fixedly connected to the rotating shaft of the motor, and the other is connected to the moving part.

[0012] Preferably, in order to drive the conveyor belt to rotate intermittently over equal distances, the transmission assembly includes a transmission housing fixedly connected to the frame, a transmission unit disposed within the transmission housing, and two rotating wheels. The two rotating wheels are connected via the transmission belt. The input end of the transmission unit is connected to the shaft of the motor, and the output end is connected to one of the rotating wheels.

[0013] Preferably, in order to achieve intermittent periodic rotation of the rotating wheel, the transmission unit includes a drive bevel gear fixedly connected to the motor shaft along the same axis, a transmission bevel gear connected to the drive bevel gear along the same axis, a drive wheel connected to the transmission bevel gear along the same axis, and a driven wheel connected to the drive wheel via a synchronous belt and connected to the rotating wheel along the same axis. The drive bevel gear is an incomplete bevel gear.

[0014] Preferably, in order to form a positioning area on the transmission surface of the conveyor belt, a positioning protrusion is provided on the circumferential outer edge of the conveyor belt, the positioning protrusion extending along the width direction of the conveyor belt, and the transmission device further includes a transmission frame fixedly connected to the frame, the transmission frame including two side vertical plates arranged side by side along the width direction of the conveyor belt, and two adjacent positioning protrusions located on the upper layer of the conveyor belt and the two side vertical plates enclose and form a positioning area.

[0015] Preferably, in order to ensure that the moving parts in the two moving clamping devices move synchronously and that the projections of the two moving parts on the horizontal plane always remain overlapping, a synchronous blind hole is provided on the side of each of the two moving parts adjacent to the transmission surface, and a synchronous rod is provided between the two moving parts. The two ends of the synchronous rod are respectively located in the synchronous blind holes of the two moving parts, and the circumferential outer edge of the synchronous rod is in contact with the circumferential inner wall of the synchronous blind hole.

[0016] Preferably, in order to facilitate the connection between the connecting components and the moving parts, so that after the drive source is running, it can drive the moving parts to move circumferentially along the guide rail, the guide rail includes a first rail and a second rail fixedly connected. The first rail is disposed on the side of the second rail adjacent to the transmission surface. The first rail and the second rail enclose a rail cavity for the moving parts to move. A closed-loop first through hole is provided on the circumferential inner wall of the rail, and the first through hole communicates with the rail cavity.

[0017] Preferably, in order to enable the clamping member to move circumferentially along the guide rail on the side adjacent to the transmission surface, and simultaneously to ensure that when the clamping member disengages from the guide member during its movement, the clamping members of the two moving clamping assemblies move away from each other to release the torn extension strip and tear strip, the side of the guide rail adjacent to the transmission surface is provided with a closed-loop second through hole communicating with the track cavity. The clamping member and the moving member are connected by a slidingly fitted guide tube and guide rod, and the guide tubes are connected to each other through the elastic member.

[0018] Preferably, in order to reduce the frictional force experienced by the clamping member when it moves on the guide member, the clamping member includes a clamping plate and a roller fixed to the side of the clamping plate away from the transmission surface, the roller rotating on the clamping plate about its own axis.

[0019] Preferably, in order to facilitate the passage of the clamping members in the two movable clamping assemblies through the guide member, the guide member includes a long strip-shaped and horizontal guide plate, and transition plates are provided at both ends of the guide plate. The end of the transition plate adjacent to the guide plate is the connecting end, and the other end is the transition end. The height difference between the transition end and the transmission surface is greater than the height difference between the connecting end and the transmission surface, and the transition end is gradually transitioned towards the connecting end.

[0020] In summary, compared with the prior art, the rework equipment for foam double-sided tape assemblies of the present invention drives the moving parts to move circumferentially along the guide rail by the driving device, while simultaneously driving the conveyor belt to move at intervals. The distance of each transmission by the conveyor belt is equal to the spacing between adjacent tear strips in the foam double-sided tape assembly. The moving parts drive the clamping parts to move, and through the cooperation of the elastic parts and the guide parts, the adjacent tear strips on the output end of the conveyor belt are torn off. This allows the device to automatically tear the tear strips of each foam double-sided tape assembly one by one, reducing labor costs. There is no need for workers to manually tear the tape; workers only need to receive the torn foam double-sided tape assemblies at the output end of the conveyor belt. The device is easy to use and operate, thereby greatly improving rework efficiency. Attached Figure Description

[0021] Figure 1 This is a structural diagram of a foam double-sided tape assembly;

[0022] Figure 2 yes Figure 1 An explosion diagram;

[0023] Figure 3 This is a schematic diagram of the structure of the present invention;

[0024] Figure 4 yes Figure 3 Side view;

[0025] Figure 5 Yes, yes Figure 3 An explosion diagram;

[0026] Figure 6 This is a schematic diagram of the connection structure between the transmission device and the rotating wheel of the present invention;

[0027] Figure 7 yes Figure 6 An explosion diagram;

[0028] Figure 8 This is a schematic diagram of the transmission unit of the present invention;

[0029] Figure 9 This is a schematic diagram of the connection structure between the driving device and the upper moving clamping assembly of the present invention;

[0030] Figure 10 for Figure 9 A bottom view;

[0031] Figure 11 for Figure 10 AA-direction cross section;

[0032] Figure 12 for Figure 10 An explosion diagram;

[0033] Figure 13 This is a schematic diagram of the structure of the moving part of the present invention;

[0034] Figure 14 This is a schematic diagram of the connection structure of the two movable clamping components of the present invention;

[0035] Figure 15 for Figure 14 Top view;

[0036] Figure 16 for Figure 15 BB-direction cross-section;

[0037] Figure 17 This is a schematic diagram of another embodiment of the present invention;

[0038] Figure 18 This is a schematic diagram of the negative pressure shell of the present invention;

[0039] Figure 19 for Figure 17 An explosion diagram;

[0040] In the diagram: 100, frame; 101, base frame; 102, U-shaped frame; 200, conveyor belt; 201, positioning protrusion; 300, guide rail; 301, first track; 302, second track; 303, first through hole; 304, second through hole; 400, moving part; 401, top plate; 402, bottom plate; 403, connecting block; 404, connecting shaft; 405, rotating wheel; 500, guide part; 501, guide plate; 502, transition plate; 503, connecting column; 504, connecting plate; 600, motor; 700, slide tube; 800, slide rod; 900, transmission housing; 110, rotating wheel; 120, drive bevel gear; 130, transmission... 140. Moving bevel gear; 150. Driving wheel; 160. Synchronous belt; 170. Driven wheel; 171. Transmission frame; 172. Connecting strip; 173. Side vertical plate; 174. Side horizontal plate; 180. Synchronous blind hole; 190. Synchronous rod; 210. Clamping element; 211. Clamping plate; 212. Roller; 220. Foam double-sided adhesive tape assembly; 221. Tear strip; 222. Foam layer; 223. Pressure-sensitive adhesive layer; 224. Glass sheet; 230. Extension strip; 240. Negative pressure shell; 241. Shell; 2411. Negative pressure hole; 242. Cover plate; 243. Negative pressure pipe; 250. Concentric shaft; 260. Conduit; 270. Guide rod; 280. Elastic element. Detailed Implementation

[0041] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0042] like Figure 1 and Figure 2The diagram shows the specific structure of a foam double-sided tape assembly 220 requiring rework. It includes foam double-sided tape and glass sheets 224 disposed on both sides of the foam double-sided tape. The foam double-sided tape includes a tear-off layer. Both surfaces of the tear-off layer along its thickness direction are connected to pressure-sensitive adhesive layers 223 via foam layers 222. The pressure-sensitive adhesive layers 223 are fixedly connected to the glass sheets 224. The tear-off layer includes multiple tear strips 221 arranged side-by-side along the width direction of the foam double-sided tape assembly 220. Adjacent tear strips 221 are connected by a point-to-point line, and one end of each tear strip 221 extends to the outer side of the cylindrical surface containing the circumferential outer edge of the foam layer 222. This allows for the bonding and fixing of an extension strip 230 to the outer end of the tear strip 221 during rework. Figure 6 and Figure 7 As shown, by carefully pulling the extension strip 230, each tear strip 221 is separated from the two foam layers 222, thereby enabling the separation of the two glass sheets 224 for rework.

[0043] To improve rework efficiency, reduce labor costs, and alleviate the burden on workers, this invention discloses a rework device for foam double-sided tape assemblies 220, such as... Figures 3-19 As shown, it includes:

[0044] 100 racks;

[0045] The transmission device includes a transmission belt 200 that rotates on a frame 100. The transmission belt 200 has a horizontal transmission surface and positioning areas that are evenly distributed along its length. Foam double-sided tape assemblies 220 placed in the positioning areas are evenly distributed. The ends of the extension strips 230 of each foam double-sided tape assembly 220 extend outside the positioning area and are located on the same side of the transmission belt 200.

[0046] The movable clamping device includes two movable clamping assemblies that are horizontally projected and disposed on the upper and lower sides of the transmission surface. Each movable clamping assembly includes a movable clamping unit and a closed-loop guide rail 300. The movable clamping unit includes a movable part 400 that moves along the guide rail 300, a clamping part 210 that is connected to the movable part 400 through an elastic part 280 and slides in the vertical direction, and a guide part 500 that is fixedly connected to the guide rail 300. When the movable part 400 of the two movable clamping assemblies drives the clamping part 210 to move closer together through the guide part 500 to clamp the extension strip 230 adjacent to the output end of the transmission belt 200 and pull the extension strip 230 to tear the tear strip 221. After passing through the guide part 500, they move further apart to release the extension strip 230.

[0047] The drive device includes a drive source, a connecting assembly disposed between the drive source and one of the moving parts 400, and a transmission assembly disposed between the drive source and the conveyor belt 200. When the moving part 400 moves one revolution along the guide rail 300, the length of the rotation path of the outer surface of the conveyor belt 200 is equal to the spacing between adjacent tear strips 221 in the foam double-sided tape assembly 220.

[0048] When the rework equipment is running, the foam double-sided tape assembly 220 (with the tear strip 221 of the foam double-sided tape assembly 220 pre-attached and fixed to the extension strip 230) that needs to be reworked is placed on the transmission surface of the conveyor belt 200, so that the foam double-sided tape assembly 220 is located within the positioning area. When the conveyor belt 200 rotates, it can drive the foam double-sided tape assembly 220 to move synchronously, preventing the foam double-sided tape assembly 220 from shifting its position. The foam double-sided tape assembly 220 placed within the positioning area... In section 0, the extension strip 230 connected to the tear strip 221 is located on the upper side of one side of the transmission surface and protrudes outside the positioning area. Through the positioning area, the ends of the extension strips 230 connected to each foam double-sided tape assembly 220 are flush, and the spacing of the extension strips 230 in all foam double-sided tape assemblies 220 (including the spacing of the extension strips 230 in the same foam double-sided tape assembly 220 and the spacing of the extension strips 230 at adjacent ends in two adjacent foam double-sided tape assemblies 220) is equal.

[0049] When the drive unit is started and the drive source is running, the moving part 400 is driven to move circumferentially along the guide rail 300 through the connecting component, so that the moving part 400 and the clamping part 210 connected to the moving part 400 make horizontal circumferential movements. The clamping part 210 is connected through the elastic element 280. Specifically, the elastic element 280 is a spring. Therefore, while the clamping part 210 makes circumferential movements in the horizontal direction, it can also move in the vertical direction. The height position of the clamping part 210 can be changed through the guide part 500 fixedly connected to the guide rail 300. Therefore, in this invention, by changing the position of the guide member 500, the height position of the clamping member 210 during a certain horizontal movement path can be changed. Specifically, when the two clamping members 210 rotate with the two moving members 400 to contact the guide member 500, the two guide members 500 bring the two clamping members 210 closer to each other, and the elastic member 280 spring is in a stretched state, maintaining tension. At this time, the two clamping members 210 cooperate with each other to clamp the foam double-sided adhesive adjacent to the output end of the conveyor belt 200. The tear strip 221 is attached to the end of the assembly 220 (which is adjacent to the output end of the conveyor belt 200). Then, the two clamping members 210 move horizontally and tear the tear strip 221. After the two clamping members 210 pass through the two guide members 500, the clamping members 210 are subjected to the force of the elastic member 280 in a stretched state and move in the vertical direction away from the plane where the conveyor surface is located. That is, the two clamping members 210 move away from each other, thereby releasing the torn tear strip 221.

[0050] As the moving part 400 moves one revolution along the guide rail 300, the drive device acts on the conveyor belt 200 through the transmission component, causing the conveyor belt 200 to rotate periodically. Each rotation path of the conveyor belt 200 is fixed, being the distance between two adjacent tear strips 221 in the foam double-sided tape assembly 220. This causes the conveyor belt 200 to move the foam double-sided tape assembly 220 along the conveying direction of the conveyor belt by the distance between the two adjacent tear strips 221. Therefore, when the moving part 400 moves one revolution along the guide rail 300, it not only tears off the tear strip 221 closest to the output end of the conveyor belt 200, but also moves each foam double-sided tape assembly 220. As the moving part 400 continues to move, it can continue to tear off the tear strip 221 closest to the output end of the conveyor belt 200, ultimately completing the tearing of each tear strip 221 in each foam double-sided tape assembly 220. Workers only need to receive the foam double-sided tape assembly 220 torn off by the tear strip 221 at the output end of the conveyor belt 200 to easily separate the two glass pieces 224 of the foam double-sided tape assembly 220, which greatly reduces the workload of workers, reduces labor costs, and improves rework efficiency.

[0051] The specific structure of rack 100 is as follows Figures 3-5As shown, it includes a U-shaped frame 102 and two base frames 101 arranged side by side along the transmission direction of the conveyor belt 200. The two base frames 101 are respectively set at both ends of the bottom surface of the transmission device for the transmission device. The U-shaped opening of the U-shaped frame 102 faces downward. Two guide rails 300 are fixed between the two inner side walls of the U-shaped frame 102. The drive device is set at the top of the U-shaped frame 102.

[0052] In a preferred embodiment, the drive source includes a motor 600 fixed on the frame 100, and the connecting assembly includes a sliding tube 700 and a sliding rod 800 that are slidably engaged. One of the sliding tube 700 and the sliding rod 800 is fixedly connected to the rotating shaft of the motor 600, and the other is connected to the moving part 400.

[0053] Specifically, such as Figure 5 , Figures 9-12 As shown, the motor 600 is fixed downwards at the bottom of the U-shaped opening of the U-shaped frame 102. The motor 600 is located inside the guide rail 300. The rotating shaft of the motor 600 is fixedly connected to the slide tube 700. One end of the slide rod 800 is slidably engaged with the slide tube 700, and the other end is connected to the moving part 400. With the above structure, the length of the connection structure formed by the slide rod 800 and the slide tube 700 can be varied. Therefore, even if the guide rail 300 is not circular and the distance between the rotating shaft of the motor 600 and the guide rail 300 varies, the sliding engagement between the slide tube 700 and the slide rod 800 allows the slide rod 800 to rotate synchronously when the motor 600 drives the slide tube 700 to rotate. The slide rod 800 moves along the length of the slide tube 700, thereby driving the moving part 400 to move along the guide rail 300.

[0054] In a preferred embodiment, the transmission assembly includes a transmission housing 900 fixedly connected to the frame 100, a transmission unit disposed within the transmission housing 900, and two rotating wheels 110. The two rotating wheels 110 are connected by a transmission belt 200. The input end of the transmission unit is connected to the rotating shaft of the motor 600, and the output end is connected to one of the rotating wheels 110. The transmission unit includes a drive bevel gear 120 fixedly connected to the rotating shaft of the motor 600 along a coaxial line, a transmission bevel gear 130 connected to the drive bevel gear 120 along a coaxial line, a drive wheel 140 connected to the transmission bevel gear 130 along a coaxial line, and a driven wheel 160 connected to the drive wheel 140 via a synchronous belt 150 and connected to the rotating wheel 110 along a coaxial line. The drive bevel gear 120 is an incomplete bevel gear.

[0055] Specifically, such as Figure 5 , Figure 7 and Figure 8As shown, the transmission housing 900 is fixedly connected to the U-shaped frame 102 via the upper guide rail 300. The transmission housing 900 is L-shaped and has a hollow structure. A transmission unit is installed inside, comprising a drive bevel gear 120, a transmission bevel gear 130, a concentric shaft 250, a driving wheel 140, and a driven wheel 160, all rotating around their own axes within the transmission housing 900. The concentric shaft 250 is horizontally positioned, and the drive bevel gear 120 is fixedly connected to the rotating shaft of the motor 600 along the same axis. The transmission bevel gear 130, the concentric shaft 250, and the driving wheel 140 are fixedly connected along the coaxial center line. The driving wheel 140 is connected to the driven wheel 160 via the synchronous belt 150. The driving bevel gear 120 is an incomplete bevel gear and meshes with the transmission bevel gear 130. Two rotating wheels 110 are respectively located at both ends of the transmission belt 200. The two rotating wheels 110 are connected via the transmission belt 200, and the rotating wheel 110 adjacent to the output end of the transmission belt 200 is fixedly connected to the driven wheel 160 along the coaxial center line.

[0056] With the above-described structure, the transmission housing 900 protects the internal drive bevel gear 120, transmission bevel gear 130, concentric shaft 250, drive wheel 140, and driven wheel 160. When the motor 600 starts, it drives the drive bevel gear 120 to rotate. Since the drive bevel gear 120 is an incompletely meshing bevel gear with the transmission bevel gear 130, the transmission bevel gear 130 rotates periodically. This, in turn, drives the drive wheel 140 to rotate periodically via the concentric shaft 250. The drive wheel 140 is connected to the driven wheel 160 via a synchronous belt 150, thus... The driven wheel 160 rotates periodically at a fixed angle, which in turn drives the rotating wheel 110, which is adjacent to the output end of the conveyor belt 200, to rotate periodically at a fixed angle. The two rotating wheels 110 cooperate with each other to drive the conveyor belt 200 to move periodically, so that the foam double-sided tape assembly 220 on the conveyor surface moves periodically along the conveying direction. Specifically, the period is the time it takes for the moving part 400 to move one revolution along the guide rail 300, and the moving distance of the foam double-sided tape assembly 220 is the distance between two adjacent tear strips 221 in the foam double-sided tape assembly 220.

[0057] In a preferred embodiment, a positioning protrusion 201 is provided on the circumferential outer edge of the conveyor belt 200. The positioning protrusion 201 extends along the width direction of the conveyor belt 200. The conveying device also includes a conveying frame 170 fixedly connected to the frame 100. The conveying frame 170 includes two side vertical plates 172 arranged side by side along the width direction of the conveyor belt 200. Two adjacent positioning protrusions located on the upper layer of the conveyor belt 200 and the two side vertical plates 172 enclose a positioning area.

[0058] Specifically, such as Figure 6 and Figure 7As shown, the transmission frame 170 is fixed above the two base frames 101. The transmission frame 170 includes two side vertical plates 172 arranged side by side along the width direction of the transmission belt 200. The two side vertical plates 172 are fixedly connected by a connecting strip 171, and the two side vertical plates 172 are respectively attached to the two sides of the transmission belt 200 in the width direction. The top edge of the side vertical plate 172 protrudes higher than the transmission surface, so that the two side vertical plates 172 and the two adjacent positioning protrusions 201 on the upper layer of the transmission belt 200 form a rectangular positioning area. The width of the positioning area is the same as the width of the foam double-sided tape assembly 220, and the length of the positioning area is the same as the length of the foam double-sided tape assembly 220. The connecting strip 171 is located on the inner side of the transmission belt 200, and the two rotating... Wheel 110 rotates between two side vertical plates 172. One of the side vertical plates 172 has a horizontal side plate 173 fixed to its top to support the extension strip 230 connected to the tear strip 221 of the foam double-sided tape assembly 220 placed on the conveyor surface. The end of the extension strip 230 away from the foam double-sided tape assembly 220 protrudes from the side of the side plate 173 away from the conveyor belt 200 to keep the extension strip 230 in a horizontal state. On this basis, when the two moving parts 400 move along the two guide rails 300, the two clamping parts 210 move closer to each other under the action of the guide 500, clamping the part of the extension strip 230 protruding from the side plate 173, thereby pulling the extension strip 230 to tear the tear strip 221.

[0059] In a preferred embodiment, each of the two moving parts 400 is provided with a synchronization blind hole 180 on the side adjacent to the transmission surface, and a synchronization rod 190 is provided between the two moving parts 400. The two ends of the synchronization rod 190 are respectively provided in the synchronization blind holes 180 of the two moving parts 400, and the circumferential outer edge of the synchronization rod 190 is in contact with the circumferential inner wall of the synchronization blind hole 180.

[0060] Specifically, such as Figure 5 and Figure 16As shown, of the two moving parts 400, the upper moving part 400 has a downward-facing synchronous blind hole 180 on the side adjacent to the transmission surface, and the upper moving part 400 has an upward-facing synchronous blind hole 180 on the side adjacent to the transmission surface. The two synchronous blind holes 180 are arranged opposite each other, and a synchronous rod 190 extending in the vertical direction is arranged between the two synchronous blind holes 180. The two ends of the synchronous rod 190 are respectively arranged in the two synchronous blind holes 180, and the circumferential outer edge of the synchronous rod 190 is in contact with the circumferential inner wall of the synchronous blind hole 180. With the above structure, when one of the moving parts 400 moves along its corresponding guide rail 300, the moving part 400 can drive the other moving part 400 to move synchronously in the horizontal direction through the synchronizing rod 190. Therefore, the synchronizing rod 190 ensures the consistency of the movement of the two moving parts 400 along the two guide rails 300. Based on this, the driving device only needs to act on one of the moving parts 400, and the synchronizing rod 190 can drive the two moving parts 400 to move simultaneously.

[0061] In a preferred embodiment, the guide rail 300 includes a first rail 301 and a second rail 302 fixedly connected. The first rail 301 is disposed on the side of the second rail 302 adjacent to the transmission surface. The first rail 301 and the second rail 302 enclose a rail cavity for the moving member 400 to move. A closed-loop first through hole 303 is provided on the circumferential inner wall of the rail, and the first through hole 303 communicates with the rail cavity. A closed-loop second through hole 304 is provided on the side of the guide rail 300 adjacent to the transmission surface and communicates with the rail cavity. The clamping member 210 is connected to the moving member 400 through a slidingly fitted conduit 260 and a guide rod 270. The conduit 260 and the guide rod 270 are connected through an elastic member 280.

[0062] Specifically, such as Figures 9-12 As shown, the first through hole 303 is formed by the first track 301 and the second track 302. The second through hole 304 is located on the side of the first track 301 adjacent to the transmission surface. The slide rod 800 in the connecting assembly passes through the inner side of the first through hole 303 and is connected to the moving part 400. One end of the guide rod 270 passes through the inner side of the second through hole 304 and is fixedly connected to the moving part 400. The other end of the guide rod 270 is fixed with a boss. The boss slides on the inner side of the guide tube 260. The elastic element 280 is a spring located in the guide tube 260. The two ends of the spring are respectively connected to the boss and the end of the guide tube 260 adjacent to the guide rail 300. The guide rod 270 and the guide tube 260 are both vertically arranged. The clamping part 210 is fixedly connected to the guide tube 260.

[0063] By adopting the above structure, the connection between the moving part 400, the slide rod 800, and the clamping part 210 is realized on the basis of the circumferential movement of the moving part 400 along the guide rail 300. Therefore, when the motor 600 starts, the moving part 400 can be driven to make circumferential movement between the first track 301 and the second track 302 through the slide tube 700 and the slide rod 800. At the same time, the moving part 400 drives the clamping part 210 to make circumferential movement in the horizontal direction synchronously through the guide rod 270 and the guide tube 260. The guide rod 270 is connected to the guide tube 260 through the elastic member 280, and the guide rod 270 and the guide tube 260 slide together, so that the height position of the clamping part 210 can be changed, which facilitates the two clamping parts 210 to cooperate with each other, clamp the extension strip 230 and tear the tear strip 221 and then release it.

[0064] The specific structure of the moving part 400 is as follows: Figure 13 As shown, the top plate 401 and the bottom plate 402 are projected to overlap on the horizontal plane. The top plate 401 and the bottom plate 402 are fixedly connected by a connecting block 403. The top plate 401, the bottom plate 402 and the connecting block 403 are all cubic structures. The width of the connecting block 403 is smaller than the width of the top plate 401 and the length of the connecting block 403 is smaller than the length of the top plate 401. The four corners of the top plate 401 and the four corners of the bottom plate 402 are fixedly connected by four connecting shafts 404. Four rotating wheels 405 rotate on the connecting shafts 404.

[0065] When the movable part 400 moves along the guide rail 300, the top plate 401 and the bottom plate 402 are in contact with the cavity walls on the upper and lower sides of the track cavity, respectively, and the circumferential wheel surfaces of the four rotating wheels 405 are in contact with the two inner side walls of the track cavity, ensuring that the movable part 400 moves stably along the guide rail 300 in the track cavity and preventing the movable part 400 from deviating when it moves along the guide rail 300.

[0066] In a preferred embodiment, the clamping member 210 includes a clamping plate 211 and a roller 212 fixed to the side of the clamping plate 211 away from the transmission surface. The roller 212 rotates on the clamping plate 211 about its own axis. Specifically, as shown in the figure... Figure 11 and Figure 12 As shown, the clamping plate 211 is fixedly connected to the conduit 260, so that the conduit 260 and the clamping plate 211 move synchronously. The wheel surface of the roller 212 is used to fit against the guide member 500, so that when the clamping member 210 passes through the guide member 500, the roller 212 rotates around its own axis, reducing the friction between the clamping member 210 and the guide member 500, and making it easier for the clamping member 210 to follow the movement of the moving member 400.

[0067] In a preferred embodiment, the guide member 500 includes a long, horizontal guide plate 501. Transition plates 502 are provided at both ends of the guide plate 501. One end of the transition plate 502 adjacent to the guide plate 501 is a connecting end, and the other end is a transition end. The height difference between the transition end and the transmission surface is greater than the height difference between the connecting end and the transmission surface, and the transition end gradually transitions towards the connecting end. The specific structure is as follows: Figure 12 and Figure 14 As shown, the guide member 500 includes an arc-shaped guide plate 501, which is horizontally arranged. Transition plates 502 are fixed at both ends of the guide plate 501. In the upper guide member 500, the transition plate 502 bends upward, and in the lower guide member 500, the transition plate 502 bends downward. The guide plate 501 is fixedly connected to the connecting plate 504 through the connecting post 503. The connecting plate 504 is fixedly connected to the first track 301.

[0068] With the above structure, the clamping member 210 can be guided to move in the vertical direction by the transition plate 502. When the moving member 400 rotates, the rollers 212 in the two moving clamping assemblies gradually approach each other through the two transition plates 502. When they move between the two guide plates 501, they clamp the extension strip 230 and then move between the two guide plates 501. Since the two guide plates 501 are both horizontally set, the two clamping members 210 keep clamping the extension strip 230 and pull the extension strip 230 and tear the tear strip 221. When the roller 212 passes the guide plate 501, under the elastic recovery force of the elastic member 280, the roller 212 moves against the other transition plate 502, and the two clamping plates 211 separate from each other to release the torn tear strip 221.

[0069] Another specific embodiment of the present invention is as follows: Figure 17 and Figure 19 As shown, the difference based on the above embodiments is that it also includes a hollow negative pressure shell 240. The negative pressure shell 240 is located directly above the output end of the conveyor belt 200. A gap is provided between the negative pressure shell 240 and the conveyor surface for the foam double-sided adhesive tape assembly 220 to pass through, and it is fixedly connected to the transmission shell 900. The bottom surface of the negative pressure shell 240 has a rectangular array of negative pressure holes 2411. A negative pressure pipe 243 communicating with its inner cavity is provided on one side of the negative pressure shell 240. Specifically, the negative pressure shell 240 includes a shell 241 connected to the transmission shell 900 and open at the top. A cover plate 242 is provided and fixed on the top of the shell 241. The negative pressure holes 2411 and the negative pressure pipe 243 are both provided on the shell 241. The negative pressure pipe 243 is used to connect to the negative pressure pump.

[0070] When the equipment is running, the negative pressure pump draws air from the negative pressure housing 240, keeping the negative pressure hole 2411 in a negative pressure state. This creates suction on the foam double-sided tape assembly 220 at the output end of the conveyor belt 200, preventing the glass sheet 224 above from pressing down after the tear strip 221 separates from the two foam layers 222, which would affect the tearing of the tear strip 221. In this way, the equipment can smoothly pull off the tear strip 221 one by one from the adjacent foam double-sided tape assemblies 220 that have moved to the output end of the conveyor belt 200, so that rework can be performed.

[0071] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A rework equipment for foam double-sided adhesive tape assemblies, characterized in that, include: Rack (100); The transmission device includes a transmission belt (200) rotating on the frame (100), the transmission belt (200) having a horizontal transmission surface, and positioning areas evenly distributed along its own length direction on the transmission surface, foam double-sided tape assemblies (220) placed in the positioning areas evenly distributed, and the ends of the extension strips (230) of each foam double-sided tape assembly (220) extending outside the positioning area and located on the same side of the transmission belt (200); The movable clamping device includes two movable clamping assemblies that are horizontally projected and disposed on the upper and lower sides of the transmission surface. Each of the two movable clamping assemblies includes a movable clamping unit and a closed-loop guide rail (300). The movable clamping unit includes a movable part (400) that moves along the guide rail (300), a clamping part (210) that is connected to the movable part (400) through an elastic part (280) and slides in the vertical direction, and a guide part (500) that is fixedly connected to the guide rail (300). When the movable part (400) of the two movable clamping assemblies drives the clamping part (210) to move closer together through the guide part (500) to clamp the extension strip (230) adjacent to the output end of the transmission belt (200) and pull the extension strip (230) to tear the tear strip (221), and when they move away from each other through the guide part (500) to release the extension strip (230). The driving device includes a driving source, a connecting component disposed between the driving source and one of the moving parts (400), and a transmission component disposed between the driving source and the conveyor belt (200). When the moving part (400) moves one revolution along the guide rail (300), the length of the rotation path of the outer surface of the conveyor belt (200) is equal to the spacing between adjacent tear strips (221) in the foam double-sided tape assembly (220).

2. The rework equipment for foam double-sided tape assemblies according to claim 1, characterized in that: The drive source includes a motor (600) fixed on the frame (100), and the connecting assembly includes a sliding tube (700) and a sliding rod (800) that are slidably engaged. One of the sliding tube (700) and the sliding rod (800) is fixedly connected to the rotating shaft of the motor (600), and the other is connected to the moving part (400).

3. The rework equipment for foam double-sided tape assemblies according to claim 2, characterized in that: The transmission assembly includes a transmission housing (900) fixedly connected to the frame (100), a transmission unit disposed within the transmission housing (900), and two rotating wheels (110). The two rotating wheels (110) are connected by transmission belt (200). The input end of the transmission unit is connected to the shaft of the motor (600), and the output end is connected to one of the rotating wheels (110).

4. The rework equipment for foam double-sided tape assemblies according to claim 3, characterized in that: The transmission unit includes a drive bevel gear (120) fixedly connected to the shaft of the motor (600) along the same axis, a transmission bevel gear (130) connected to the drive bevel gear (120) along the same axis, a drive wheel (140) connected to the transmission bevel gear (130) along the same axis, and a driven wheel (160) connected to the drive wheel (140) via a synchronous belt (150) and connected to the rotating wheel (110) along the same axis. The drive bevel gear (120) is an incomplete bevel gear.

5. The rework equipment for foam double-sided tape assemblies according to claim 1, characterized in that: The circumferential outer edge of the conveyor belt (200) is provided with a positioning protrusion (201), which extends along the width direction of the conveyor belt (200). The conveying device also includes a transmission frame (170) fixedly connected to the frame (100). The transmission frame (170) includes two side vertical plates (172) arranged side by side along the width direction of the conveyor belt (200). Two adjacent positioning protrusions on the upper layer of the conveyor belt (200) and the two side vertical plates (172) enclose a positioning area.

6. The rework equipment for foam double-sided tape assemblies according to claim 1, characterized in that: Each of the two moving parts (400) has a synchronization blind hole (180) on the side adjacent to the transmission surface. A synchronization rod (190) is provided between the two moving parts (400). The two ends of the synchronization rod (190) are respectively located in the synchronization blind holes (180) of the two moving parts (400). The outer circumferential edge of the synchronization rod (190) is in contact with the inner circumferential wall of the synchronization blind hole (180).

7. The rework equipment for foam double-sided tape assemblies according to claim 1, characterized in that: The guide rail (300) includes a first rail (301) and a second rail (302) fixedly connected. The first rail (301) is disposed on the side of the second rail (302) adjacent to the transmission surface. The first rail (301) and the second rail (302) enclose each other to form a rail cavity for the moving part (400) to move. A closed-loop first through hole (303) is provided on the circumferential inner wall of the rail, and the first through hole (303) communicates with the rail cavity.

8. The rework equipment for foam double-sided tape assemblies according to claim 7, characterized in that: The guide rail (300) has a closed-loop second through hole (304) on the side adjacent to the transmission surface, which is connected to the track cavity. The clamping member (210) and the moving member (400) are connected by a slidingly fitted conduit (260) and a guide rod (270). The conduit (260) and the guide rod (270) are connected by the elastic member (280).

9. The rework equipment for foam double-sided tape assemblies according to claim 1, characterized in that: The clamping member (210) includes a clamping plate (211) and a roller (212) fixed to the side of the clamping plate (211) away from the transmission surface. The roller (212) rotates on the clamping plate (211) about its own axis.

10. The rework equipment for foam double-sided tape assemblies according to claim 1, characterized in that: The guide member (500) includes a long and horizontal guide plate (501). Both ends of the guide plate (501) are provided with transition plates (502). One end of the transition plate (502) adjacent to the guide plate (501) is a connecting end, and the other end is a transition end. The height difference between the transition end and the transmission surface is greater than the height difference between the connecting end and the transmission surface, and the transition end is gradually transitioned towards the connecting end.

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