Film pressing and cutting mechanism

Abstract

The utility model discloses a film pressing and cutting mechanism which is characterized in that a film material iron ring is placed on a fixing piece, and a support moves towards the direction close to the fixing piece under the driving of a first linear driving piece, so that a film pressing block and a cutter are driven to move towards the direction close to the fixing piece; the film pressing driving part further drives the film pressing block to move in the direction close to the fixing part until the film pressing block presses the film iron ring, the cutter cuts off the edge of the film iron ring, then the film pressing driving part drives the film pressing block to move in the direction away from the fixing part, and the second linear driving part drives the fixing part to move in the direction close to the film pressing block. And the cut membrane material iron ring is ejected upwards, and the whole cutting process is completed. In the whole cutting process, it can be guaranteed that the positions of the wafers on the film material iron rings are not changed, and then the film material iron rings in the regular shape are stretched, so that the distances between the wafers after wafer expansion can be unified.

Description

Technical Field

[0001] The utility model relates to the field of LED crystal expansion, in particular to a film pressing and cutting mechanism. Background Art

[0002] During MiniLED production, the wafer is placed in a ring of film material with irregular edges that require subsequent cutting. Prior art methods place the ring containing the wafer into a mold and then cut away the irregularities. However, during this cutting process, the wafer on the ring can shift, hindering subsequent wafer expansion. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the utility model provides a film pressing and cutting mechanism, which can keep the position of the LED chip attached to the iron ring unchanged when cutting the LED receiving film material, thereby providing high-quality semi-finished products for the subsequent crystal expansion process.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a film pressing and cutting mechanism, including a pressing and cutting assembly and a fixing assembly, the pressing and cutting assembly including a bracket, a first linear driving member, a film pressing driving member, a cutter and a film pressing block, the bracket is mounted on the first linear driving member, the first linear driving member is used to drive the bracket to move in a vertical direction, the film pressing driving member is mounted on the bracket, the film pressing driving member is used to drive the film pressing block to move in a vertical direction, and the cutter is mounted on the bracket;

[0005] The fixing assembly includes a frame, a second linear drive and a fixing member. The fixing member is arranged opposite to the film pressing block. The fixing member is used to fix the film material iron ring. The second linear drive is installed on the frame. The second linear drive is used to drive the fixing member to move toward or away from the film pressing block.

[0006] As a further improvement of the above technical solution, the first linear driving member includes a first fixed portion and a first movable portion, the first movable portion is slidably connected to the first fixed portion, and the bracket is installed on the first movable portion.

[0007] As a further improvement of the above technical solution, the pressing and cutting assembly also includes a guide column and a guide sleeve, the guide sleeve is sleeved on the guide column, and the guide column and the guide sleeve are slidingly connected, the guide sleeve is fixedly connected to the bracket, and the guide column is fixedly connected to the film pressing block.

[0008] As a further improvement of the above technical solution, the film pressing drive component includes a film pressing cylinder, a cylinder body of the film pressing cylinder is installed on the bracket, and a piston rod of the film pressing cylinder is connected to the film pressing block.

[0009] As a further improvement of the above technical solution, the film pressing block and the cutter are both square, the cutter surrounds the film pressing block, and a gap is set between the cutter and the film pressing block.

[0010] As a further improvement of the above technical solution, the four corners of the film pressing block are designed with chamfers.

[0011] As a further improvement of the above technical solution, the second linear drive member includes a second fixed portion and a second movable portion, the second movable portion is slidably connected to the second fixed portion, and the second fixed portion is mounted on the frame;

[0012] The fixing member includes a connecting frame and an adsorption plate connected to each other, and the connecting frame is installed on the second moving part.

[0013] As a further improvement of the above technical solution, a DD motor is provided on the frame, a first through hole is provided at the center of the DD motor, a accommodating disk is installed on the DD motor, a accommodating groove is provided on the accommodating disk, a second through hole is provided at the bottom of the accommodating groove, and the first through hole and the second through hole are coaxially arranged; the connecting frame includes a slide and a connecting rod, the slide is installed on the second movable part, and the two ends of the connecting rod are respectively connected to the slide and the adsorption plate, the connecting rod is passed through the first through hole and the second through hole, and the adsorption plate is located in the accommodating groove.

[0014] As a further improvement of the above technical solution, a limiting column is provided on the edge of the accommodating groove.

[0015] As a further improvement of the above technical solution, a plurality of adsorption holes are provided on the surface of the adsorption plate, a plurality of negative pressure holes are provided on the side of the adsorption plate, and the adsorption holes are connected to the negative pressure holes.

[0016] The beneficial effect of the present invention is as follows: the film material iron ring is placed on the fixed part, and under the drive of the first linear drive part, the bracket moves toward the fixed part, thereby driving the film pressing block and the cutter to move toward the fixed part, and the film pressing drive part further drives the film pressing block to move toward the fixed part until the film pressing block presses the film material iron ring and the cutter cuts off the edge of the film material iron ring, and then the film pressing drive part drives the film pressing block to move away from the fixed part, and the second linear drive part drives the fixed part to move toward the film pressing block, pushing the cut film material iron ring upward, completing the entire cutting process. During the entire cutting process, the position of the wafer on the film material iron ring can be guaranteed not to change, and then the regularly shaped film material iron ring is stretched so that the spacing of the wafers after crystal expansion can be unified. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a structural diagram of the film pressing and cutting mechanism provided by the preferred embodiment of the utility model;

[0019] Figure 2 This is an exploded schematic diagram of the pressing and cutting assembly of the film pressing and cutting mechanism provided in the preferred embodiment of the present invention;

[0020] Figure 3 This is an exploded schematic diagram of the fixing components of the film pressing and cutting mechanism provided in the preferred embodiment of the present invention;

[0021] Figure 4 It is an exploded schematic diagram of the fixing parts and the accommodating tray of the film pressing and cutting mechanism provided in the preferred embodiment of the present invention.

[0022] Reference numerals: 1, pressing and cutting assembly, 2, fixing assembly, 3, membrane material iron ring;

[0023] Bracket, 12, first linear drive member, 13, film pressing drive member, 14, cutter, 15, film pressing block, 16, guide column, 17, guide sleeve, 21, frame, 22, second linear drive member, 23, fixing member, 24, DD motor;

[0024] 121. First fixed part, 122. First movable part, 131. Film pressing cylinder, 151. Chamfer, 211. Accommodating plate, 212. Accommodating groove, 213. Second through hole, 214. Limiting column, 221. Second fixed part, 222. Second movable part, 231. Connecting frame, 232. Adsorption plate, 233. Slide, 234. Connecting rod, 235. Adsorption hole, 236. Negative pressure hole. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. For example, fixed connection / fixed installation can be selected from screw connection, bolt connection, pin connection, key connection, bonding, mortise and tenon connection, welding, riveting and other methods as needed. For detachable connection, screw connection, bolt connection, threaded connection, snap connection, mortise and tenon connection, Velcro connection and other methods can be selected as needed. The various technical features in the creation of the present invention can be combined interchangeably without conflicting with each other.

[0026] See Figure 1 The preferred embodiment of the present invention provides a film pressing and cutting mechanism, including a pressing and cutting component 1 and a fixing component 2. The pressing and cutting component 1 includes a bracket 11, a first linear drive 12, a film pressing drive 13, a cutter 14 and a film pressing block 15. The bracket 11 is installed on the first linear drive 12. The first linear drive 12 is used to drive the bracket 11 to move in the vertical direction. The film pressing drive 13 is installed on the bracket 11. The film pressing drive 13 is used to drive the film pressing block 15 to move in the vertical direction. The cutter 14 is installed on the bracket 11; the fixing component 2 includes a frame 21, a second linear drive 22 and a fixing component 23. The fixing component 23 is arranged opposite to the film pressing block 15. The fixing component 23 is used to fix the film material iron ring 3. The second linear drive 22 is installed on the frame 21. The second linear drive 22 is used to drive the fixing component 23 to move toward or away from the film pressing block 15. The film material iron ring 3 is placed on the fixing member 23. Under the drive of the first linear drive member 12, the bracket 11 moves toward the direction close to the fixing member 23, thereby driving the film pressing block 15 and the cutter 14 to move toward the direction close to the fixing member 23, and the film pressing drive member 13 further drives the film pressing block 15 to move toward the direction close to the fixing member 23 until the film pressing block 15 presses the film material iron ring 3 and the cutter 14 cuts off the edge of the film material iron ring 3. Then the film pressing drive member 13 drives the film pressing block 15 to move away from the fixing member 23, and the second linear drive member 22 drives the fixing member 23 to move toward the film pressing block 15, pushing the cut film material iron ring 3 upward, completing the entire cutting process. During the entire cutting process, the position of the wafer on the film material iron ring 3 can be guaranteed not to change, and then the film material iron ring 3 with a regular shape is stretched so that the spacing of the wafers after crystal expansion can be unified.

[0027] The first linear drive member 12 includes a first fixed portion 121 and a first movable portion 122. The first movable portion 122 is slidably connected to the first fixed portion 121, and the bracket 11 is mounted on the first movable portion 122. The first movable portion 122 slides on the first fixed portion 121, driving the bracket 11 to move toward or away from the fixed member 23.

[0028] The pressing and cutting assembly 1 further includes a guide post 16 and a guide sleeve 17. The guide sleeve 17 is sleeved on the guide post 16 and is slidably connected to the guide sleeve 17. The guide sleeve 17 is fixedly connected to the bracket 11. The guide post 16 is fixedly connected to the film pressing block 15. When the film pressing drive 13 drives the film pressing block 15 to rise and fall, the guide post 16 slides relative to the guide sleeve 17. The arrangement of the guide post 16 and the guide sleeve 17 guides the rise and fall of the film pressing block 15, making the rise and fall of the film pressing block 15 more stable.

[0029] The film pressing drive 13 includes a film pressing cylinder 131. The cylinder body of the film pressing cylinder 131 is installed on the bracket 11. The piston rod of the film pressing cylinder 131 is connected to the film pressing block 15. The film pressing cylinder 131 has a simple structure and can realize the lifting and lowering of the film pressing block 15 in a simple way.

[0030] The film pressing block 15 and the cutter 14 are both square, the cutter 14 surrounds the film pressing block 15, and a gap is set between the cutter 14 and the film pressing block 15. The cutter 14 and the film pressing block 15 can move relative to each other. The processed film material iron ring 3 is square, which is convenient for clamping the four sides of the film material iron ring 3 for stretching during subsequent crystal expansion.

[0031] Chamfers 151 are designed at the four corners of the film pressing block 15 , which is beneficial to the clearance fit between the film pressing block 15 and the cutter 14 .

[0032] The second linear drive member 22 includes a second fixed portion 221 and a second movable portion 222. The second movable portion 222 is slidably connected to the second fixed portion 221, which is mounted on the frame 21. The fixed member 23 includes a connecting frame 231 and an adsorption plate 232, which are connected to each other. The connecting frame 231 is mounted on the second movable portion 222. The second movable portion 222 slides relative to the second fixed portion 221, driving the connecting frame 231 and the adsorption plate 232 to move toward or away from the lamination block 15.

[0033] The frame 21 is provided with a DD motor 24, the center of which is provided with a first through hole (not shown in the figure). The DD motor 24 is mounted with a receiving tray 211, the receiving tray 211 is provided with a receiving groove 212, the bottom of the receiving groove 212 is provided with a second through hole 213, and the first through hole and the second through hole 213 are coaxially arranged. The connecting frame 231 includes a slide 233 and a connecting rod 234. The slide 233 is mounted on the second movable portion 222. The two ends of the connecting rod 234 are respectively connected to the slide 233 and the adsorption plate 232. The connecting rod 234 is provided through the first through hole and the second through hole 213. The adsorption plate 232 is located in the receiving groove 212. When the film material iron ring 3 is located in the receiving groove 212, the edge of the film material iron ring 3 abuts against the edge of the receiving groove 212, and the adsorption plate 232 adsorbs the film material iron ring 3. By starting the DD motor 24, the accommodating disk 211 can be rotated so that the film material iron ring 3 inside it can be rotated to a specified angle; the sliding of the second moving part 222 drives the connecting rod 234 to rise and fall, and the connecting rod 234 drives the adsorption plate 232 to rise and fall, so that the film material iron ring 3 on the adsorption plate 232 moves toward or away from the film pressing block 15.

[0034] A limiting post 214 is provided on the edge of the accommodating groove 212 , and the limiting post 214 plays a positioning role, which can prevent the film material iron ring 3 from being deviated during the process of being placed.

[0035] The adsorption plate 232 is provided with a plurality of adsorption holes 235 on its surface, and a plurality of negative pressure holes 236 on its side. The adsorption holes 235 are connected to the negative pressure holes 236. By connecting the negative pressure holes 236 to a negative pressure source, the surface of the negative pressure holes 236 can be made to have an adsorption force, thereby being able to fix the membrane material iron ring 3 on the adsorption plate 232.

[0036] The above is a specific description of the preferred implementation of the present invention, but the invention of the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A film pressing and cutting mechanism, characterized in that: The invention comprises a pressing and cutting assembly and a fixing assembly, wherein the pressing and cutting assembly comprises a bracket, a first linear driving member, a film pressing driving member, a cutter and a film pressing block, wherein the bracket is mounted on the first linear driving member, the first linear driving member is used to drive the bracket to move in a vertical direction, the film pressing driving member is mounted on the bracket, the film pressing driving member is used to drive the film pressing block to move in a vertical direction, and the cutter is mounted on the bracket; The fixing assembly includes a frame, a second linear drive and a fixing member. The fixing member is arranged opposite to the film pressing block. The fixing member is used to fix the film material iron ring. The second linear drive is installed on the frame. The second linear drive is used to drive the fixing member to move toward or away from the film pressing block.

2. The film pressing and cutting mechanism according to claim 1, characterized in that: The first linear driving member includes a first fixed portion and a first movable portion, the first movable portion is slidably connected to the first fixed portion, and the bracket is installed on the first movable portion.

3. The film pressing and cutting mechanism according to claim 1, characterized in that: The pressing and cutting assembly further includes a guide post and a guide sleeve, wherein the guide sleeve is sleeved on the guide post and is slidably connected to the guide post, the guide sleeve is fixedly connected to the bracket, and the guide post is fixedly connected to the film pressing block.

4. The film pressing and cutting mechanism according to claim 1, characterized in that: The film pressing driving component includes a film pressing cylinder, a cylinder body of the film pressing cylinder is installed on the bracket, and a piston rod of the film pressing cylinder is connected to the film pressing block.

5. The film pressing and cutting mechanism according to claim 1, characterized in that: The film pressing block and the cutter are both square in shape. The cutter surrounds the film pressing block, and a gap is set between the cutter and the film pressing block.

6. The film pressing and cutting mechanism according to claim 5, characterized in that: The four corners of the film pressing block are all designed with chamfers.

7. The film pressing and cutting mechanism according to claim 1, characterized in that: The second linear driving member includes a second fixed portion and a second movable portion, the second movable portion is slidably connected to the second fixed portion, and the second fixed portion is mounted on the frame; The fixing member includes a connecting frame and an adsorption plate connected to each other, and the connecting frame is installed on the second moving part.

8. The film pressing and cutting mechanism according to claim 7, characterized in that: A DD motor is provided on the frame, a first through hole is provided at the center of the DD motor, a accommodating disk is installed on the DD motor, a accommodating groove is provided on the accommodating disk, a second through hole is provided at the bottom of the accommodating groove, and the first through hole and the second through hole are coaxially arranged; the connecting frame includes a slide and a connecting rod, the slide is installed on the second movable part, the two ends of the connecting rod are respectively connected to the slide and the adsorption plate, the connecting rod is passed through the first through hole and the second through hole, and the adsorption plate is located in the accommodating groove.

9. The film pressing and cutting mechanism according to claim 8, characterized in that: A limiting column is provided on the edge of the accommodating groove.

10. The film pressing and cutting mechanism according to claim 7, characterized in that: A plurality of adsorption holes are provided on the surface of the adsorption plate, a plurality of negative pressure holes are provided on the side surface of the adsorption plate, and the adsorption holes are connected to the negative pressure holes.

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