Cutting device and method for light guide plate

Abstract

The invention discloses a cutting device and method for a light guide plate, and relates to the field of industrial product machining equipment.The cutting device comprises a device body, a pair of grooving devices are arranged in the device body from top to bottom, a reset device is arranged between the grooving devices, and each grooving device comprises a transmission shaft; the first fixing block and the second fixing block are arranged in a mirror image mode, and a trepanning tool bit is arranged on one side of the top of the first fixing block. When the light guide plate moves, a first fixing block and a second fixing block in the grooving device can be extruded, limiting of an upper prefabricated hole is matched, and after the light guide plate moves to a designated position, under the action of a reset device, the fixing blocks drive a tool bit to rapidly reset to conduct grooving operation on the light guide plate; the other grooving device can be operated due to the change of the reset device, so that the other auxiliary tool bit carries out grooving machining of another model on the light guide plate, and rapid machining of the light guide plate is achieved.

Description

Technical Field

[0001] The invention relates to the field of industrial product processing equipment, and in particular to a cutting device and method for a light guide plate. Background Art

[0002] In the context of the rapid development of modern display technology, the processing quality and efficiency of light guide plates, as key components in the fields of liquid crystal display and lighting, directly affect the performance and market competitiveness of products. With the continuous improvement of the requirements for thinner, higher brightness and uniformity of display devices, the demand for precision processing technology of light guide plates is becoming increasingly urgent.

[0003] At present, there are many processing devices for light guide plates on the market. Common light guide plate processing mainly focuses on cutting and forming its basic shape to meet the initial production needs. In the conventional processing of light guide plates, some simple cutting equipment is mainly used to cut the light guide plate into the required size, and then the surface is polished to ensure a certain flatness and smoothness.

[0004] The steps of the prior art are usually to first cut the raw material of the light guide plate according to the designed size, using an ordinary cutting tool on a fixed cutting table to complete this step, then polish the cut light guide plate to remove burrs and other defects on the cut edges, and finally perform a simple inspection to ensure that the basic size and surface quality of the light guide plate meet the requirements.

[0005] However, the existing technology has obvious defects in dealing with the needs of different slotting types. When the slotting type of the light guide plate needs to be adjusted according to different production needs, the existing equipment cannot flexibly use the auxiliary cutter head to assist in opening holes, and it is difficult to achieve precise control of the position of the cutter head, and cannot meet the diverse production needs. Summary of the invention

[0006] Based on this, the purpose of the present invention is to provide a cutting device and method for a light guide plate to solve the technical problem that the prior art cannot flexibly assist in opening holes and accurately control the cutter head.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cutting device for a light guide plate, comprising a device body, a pair of slotting devices are arranged from top to bottom in the device body, a reset device is arranged between the pair of slotting devices, the slotting device comprises a transmission shaft, a plurality of groups of first fixed blocks and second fixed blocks are arranged on the transmission shaft, the first fixed blocks and the second fixed blocks are arranged in a mirror image, a hole-opening cutter head is arranged on one side of the top of the first fixed block, and a hole-opening cutter head is also arranged at a corresponding position on the second fixed block, an auxiliary cutter head is arranged on the other side of the top of the first fixed block, and an auxiliary cutter head is also arranged at a corresponding position on the second fixed block, a first mounting plate is arranged in the device body to cooperate with the top slotting device, a second mounting plate is arranged in the device body to cooperate with the bottom slotting device, and a rotating groove is provided on the first mounting plate and the second mounting plate to cooperate with the slotting device.

[0008] By adopting the above technical solution, different cutter heads are connected through the cooperation of the first fixed block and the second fixed block. When the light guide plate moves, they will cooperate with the grooves on the light guide plate. As the light guide plate moves, the cutter heads are reset and the light guide plate is punched back and forth.

[0009] The present invention is further configured such that the reset device includes a partition, a limited rotation shaft is arranged on the partition in cooperation with the first fixed block and the second fixed block, a rotating shaft is arranged at one end of the limited rotation shaft, the rotating shaft is connected to the device body, and a reset spring is arranged around the rotating shaft.

[0010] By adopting the above technical solution, the limiting shaft is synchronously squeezed when the slotting device performs the slotting operation, thereby driving the cutter head in another slotting device to contact the light guide plate, thereby performing the cutting operation on the light guide plate.

[0011] The present invention is further configured such that a first feed inlet is provided at both ends of the device body in cooperation with the bottom slotting device, a second feed inlet is provided on both sides of the device body in cooperation with the top slotting device, a pair of second guide plates are provided in the device body in cooperation with the first feed inlet, a pair of first guide plates are provided in the device body in cooperation with the second feed inlet, a first punching device is provided at one end of the device body in cooperation with the first feed inlet, a second punching device is provided at one side of the device body in cooperation with the second feed inlet, and the first punching device and the second punching device have the same structure.

[0012] By adopting the above technical solution, the light guide plate entering the device is pre-grooved by using a punching device, thereby facilitating the subsequent punching operation of the light guide plate.

[0013] The present invention is further configured such that the first fixed block and the second fixed block are provided with extension rods to cooperate with the auxiliary cutter head, the auxiliary cutter head is sleeved on the extension rods, a plurality of second fixed openings are provided on the extension rods, and a plurality of first fixed openings are provided at the bottom end of the auxiliary cutter head to cooperate with the second fixed openings.

[0014] By adopting the above technical solution, the extension rod is controlled to be extended and retracted through the first fixed opening and the second fixed opening, thereby controlling the auxiliary blade head to be extended, thereby controlling the blade head to be extended according to different usage requirements.

[0015] The present invention is further configured such that a buffer pad is provided on the first fixing block and the second fixing block to cooperate with the hole-opening cutter head.

[0016] By adopting the above technical solution, the hole-opening cutter head is buffered by the buffer pad, thereby ensuring the service life of the cutter head.

[0017] The present invention is further configured such that the first punching device and the second punching device comprise an accumulator body, a placement plate is provided on one surface of the accumulator body close to the first feed port or the second feed port, a plurality of punching needles are provided on the accumulator body, the punching needles are arranged through the placement plate, and a plurality of buffer pads are provided on the placement plate to cooperate with the punching needles.

[0018] By adopting the above technical solution, the punching needle is quickly punched out through the accumulator body, so that the needle punches holes on the surface of the light guide plate.

[0019] The present invention also provides a cutting method for a light guide plate, the steps of which are as follows:

[0020] Step 1: insert the light guide plate from the first feed port, pre-punch the surface of the light guide plate by the first punching device, then the light guide plate continues to move, so that the slotting device is engaged in the hole, driving the slotting device to rotate, after moving to a certain distance, the slot will lose the limit of the slotting device, so that the slotting device is quickly reset, during the reset process, the punching cutter head 21 will punch holes on the surface of the light guide plate, and then as the light guide plate continues to move, the surface of the light guide plate is reciprocated to slot;

[0021] Step 2: When the light guide plate in the first feed inlet is punched with a second row of holes, a second light guide plate is inserted from the second feed inlet, and when the slotting device in the above structure moves, the limit rotating shaft in the reset device is reset;

[0022] Step 3: The auxiliary blade in the slotting device in the second feed port is brought into contact with the light guide plate, thereby cutting the surface of the light guide plate;

[0023] Step 4: Continue to push the light guide plate to perform another type of hole punching on the light guide plate in the second feed port 3 .

[0024] In summary, the present invention mainly has the following beneficial effects:

[0025] When the light guide plate is moved by the present invention, the first fixed block and the second fixed block in the slotting device will be squeezed, and the limit of the prefabricated hole will be cooperated. After moving to the specified position, the limit of the slotting device is lost. Under the action of the reset device, the fixed block drives the cutter head to quickly reset and perform the slotting operation on the light guide plate. The other slotting device will also be operated due to the change of the reset device, so that the other auxiliary cutter head can perform another type of slotting processing on the light guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0028] Figure 3 For the present invention Figure 2 Enlarged structural diagram of point A in the middle

[0029] Figure 4 It is a schematic diagram of the internal structure of the partition of the present invention;

[0030] Figure 5 It is a side view of the internal structure of the present invention;

[0031] Figure 6 It is a schematic diagram of the connection of some parts of the present invention;

[0032] Figure 7 It is a schematic diagram of the punching device of the present invention;

[0033] Figure 8 It is a schematic diagram of the slotting device of the present invention;

[0034] Fig. 9 It is a schematic diagram of the interior of the slotting device of the present invention;

[0035] Fig.10 It is a partial structural schematic diagram of the slotting device of the present invention.

[0036] In the figure: 1. device body; 2. first feed inlet; 3. second feed inlet; 4. slotting device; 5. first guide plate; 6. first mounting plate; 7. partition plate; 8. limit rotating shaft; 9. first punching device; 10. second mounting plate; 11. rotating groove; 12. second guide plate; 13. rotating shaft; 14. transmission shaft; 15. reset spring; 16. placement plate; 17. punching needle; 18. buffer pad; 19. accumulator body; 20. second punching device; 21. hole-opening cutter head; 22. first fixed block; 23. mounting groove; 24. second fixed block; 25. auxiliary cutter head; 26. mounting box; 27. first fixed opening; 28. limit plate; 29. ​​buffer spring; 30. pressure plate; 31. baffle plate; 32. second fixed opening; 33. extension rod; 34. buffer pad. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] The following describes an embodiment of the present invention based on its overall structure.

[0039] A cutting device and method for a light guide plate, such as Figure 1 , Figure 4 and Figure 7 As shown, it includes a device body 1, a pair of slotting devices 4 are arranged from top to bottom in the device body 1, a reset device is arranged between the pair of slotting devices 4, the slotting device 4 includes a transmission shaft 14, a plurality of first fixing blocks 22 and second fixing blocks 24 are arranged on the transmission shaft 14, the first fixing blocks 22 and the second fixing blocks 24 are arranged in a mirror image, a hole-opening cutter head 21 is arranged on one side of the top of the first fixing block 22, a hole-opening cutter head 21 is also arranged at a corresponding position on the second fixing block 24, and an auxiliary cutter head 2 is arranged on the other side of the top of the first fixing block 22 5, an auxiliary blade head 25 is also provided at a corresponding position on the second fixing block 24, a first mounting plate 6 is provided in the device body 1 to cooperate with the top slotting device 4, a second mounting plate 10 is provided in the device body 1 to cooperate with the bottom slotting device 4, a rotating groove 11 is provided on the first mounting plate 6 and the second mounting plate 10 to cooperate with the slotting device 4, the slotting device 4 is used to perform a slotting operation on the surface of the light guide plate, the hole punching blade head 21 is used to perform a basic slotting operation on the surface of the light guide plate, and then the auxiliary blade head 25 is used to perform auxiliary slotting, so as to adjust the slotting type of the light guide plate according to production requirements;

[0040] For further reference, Figure 5 and Figure 6The two ends of the device body 1 cooperate with the bottom slotting device 4 to open a first feed port 2, and the two sides of the device body 1 cooperate with the top slotting device 4 to open a second feed port 3. A pair of second guide plates 12 are arranged in the device body 1 to cooperate with the first feed port 2, and a pair of first guide plates 5 are arranged in the device body 1 to cooperate with the second feed port 3. A first punching device 9 is arranged at one end of the device body 1 to cooperate with the first feed port 2, and a second punching device 20 is arranged at one side of the device body 1 to cooperate with the second feed port 3. The first punching device 9 and the second punching device 20 have the same structure. The first punching device 9 and the second punching device 20 include an accumulator body 19, and a placement plate 16 is arranged on one side of the accumulator body 19 close to the first feed port 2 or the second feed port 3. A plurality of punching needles 17 are arranged on the accumulator body 19, and the punching needles 17 penetrate the placement plate 16. A placement plate 16 is provided, and a plurality of buffer cushions 18 are provided on the placement plate 16 to cooperate with a punching needle 17. The punching needle 17 is quickly pushed out through the energy storage of the accumulator body 19 to perform basic punching on the surface of the light guide plate (a prefabricated card slot that can be stuck by a cutter head). When the machine is running, after the light guide plate is inserted into the device body 1 from the first feed port 2 or the second feed port 3, the surface of the light guide plate is pre-punched by the punching device. After that, the light guide plate continues to move, and the second fixed block 24 is limited by the pre-punching. The second fixed block 24 cooperates with the pre-punching, and the second fixed block 24 is limited and guided by the pre-punching. At this time, the resetting device is used to quickly reset the slotting device 4 after the pre-punching loses its limit on the slotting device 4, and the surface of the light guide plate is punched by the hole punching cutter head 21. At this time, the light guide plate continues to move, and the slotting device 4 cooperates with the resetting device to punch holes on the surface of the reflector back and forth.

[0041] Specifically, refer to Figure 2 and Figure 3 The reset device includes a partition 7, on which a limiting shaft 8 is provided in cooperation with a first fixed block 22 and a second fixed block 24. A rotating shaft 13 is provided at one end of the limiting shaft 8, and the rotating shaft 13 is connected to the device body 1. A reset spring 15 is provided around the rotating shaft 13. When the first fixed block 22 or the second fixed block 24 moves and squeezes the light guide plate, the first fixed block 22 and the second fixed block 24 at the other end of the slotting device 4 will apply a constant pressure to the limiting shaft 8. When the limiting shaft 8 rotates, the corresponding first fixed block 22 and the second fixed block 24 in the other slotting device 4 can be pressed, so that the other blade head can cut the surface of the light guide plate, thereby performing slotting and opening of another blade type.

[0042] Further, refer to Figure 8The slotting device 4 also includes an installation box 26, which is sleeved outside the first fixed block 22 and the second fixed block 24. The installation box 26 is provided with an installation slot 23 to cooperate with the first fixed block 22 and the second fixed block 24. A baffle 31 is provided at the bottom of the first fixed block 22, and a limit plate 28 is provided in the device body 1 to cooperate with the baffle 31. A buffer spring 29 is provided on the side of the limit plate 28 close to the baffle 31, and the buffer spring 29 is connected to the pressure plate 30. Through such an arrangement, when the slotting device 4 rotates, the baffle 31 will move toward the limit plate 28. Under the action of the buffer spring 29, after the slotting device 4 loses the limit of the slotting, it cooperates with the above-mentioned reset device to provide additional power when the slotting device 4 is quickly reset to ensure the slotting effect.

[0043] Further, refer to Figure 8 and Fig. 9 An extension rod 33 is provided on the first fixed block 22 and the second fixed block 24 to cooperate with the auxiliary cutter head 25, and the auxiliary cutter head 25 is sleeved on the extension rod 33. A plurality of second fixed openings 32 are provided on the extension rod 33, and a plurality of first fixed openings 27 are provided at the bottom end of the auxiliary cutter head 25 to cooperate with the second fixed openings 32. The position of the auxiliary cutter head 25 is controlled by cooperating with the first fixed openings 27 and the second fixed openings 32, so as to control the grooving effect of the auxiliary cutter head 25 according to actual usage requirements. A buffer pad 34 is provided on the first fixed block 22 and the second fixed block 24 to cooperate with the hole-opening cutter head 21. The buffer pad 34 has a shock-absorbing effect when the hole-opening cutter head 21 contacts the light guide plate to open a hole, so as to ensure the stable operation of the hole-opening cutter head 21.

[0044] When the machine is actually used, the light guide plate is inserted from the first feed port 2, and the surface of the light guide plate is pre-punched by the first punching device 9 (a pre-made slot that can be stuck by the cutter head), and then the light guide plate continues to move, so that the slotting device 4 is stuck in the hole, driving the slotting device 4 to rotate, and after moving to a certain distance, the groove will lose the limit of the slotting device 4, so that the slotting device 4 is quickly reset, and during the reset process, the punching cutter head 21 will punch holes on the surface of the light guide plate, and then as the light guide plate continues to move, the surface of the light guide plate is reciprocated to punch holes;

[0045] When the second row of holes is punched on the light guide plate in the first feed port 2, the second light guide plate is inserted from the second feed port 3. When the slotting device 4 in the above structure moves, the limiting shaft 8 in the reset device causes the auxiliary blade 25 in the slotting device 4 in the second feed port 3 to contact the light guide plate, thereby cutting the surface of the light guide plate. The light guide plate is pushed continuously to punch another type of holes on the light guide plate in the second feed port 3.

[0046] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A cutting device for a light guide plate, comprising a device body (1), characterized in that: A pair of slotting devices (4) are arranged from top to bottom in the device body (1), a reset device is arranged between the pair of slotting devices (4), the slotting device (4) comprises a transmission shaft (14), a plurality of groups of first fixing blocks (22) and second fixing blocks (24) are arranged on the transmission shaft (14), the first fixing blocks (22) and the second fixing blocks (24) are arranged in a mirror image, a hole-opening cutter head (21) is arranged on one side of the top of the first fixing block (22), and a corresponding position on the second fixing block (24) is also provided. A hole-punching cutter head (21) is arranged, an auxiliary cutter head (25) is arranged on the other side of the top of the first fixed block (22), and an auxiliary cutter head (25) is also arranged at a corresponding position on the second fixed block (24); a first mounting plate (6) is arranged in the device body (1) to cooperate with the top slotting device (4), and a second mounting plate (10) is arranged in the device body (1) to cooperate with the bottom slotting device (4); and a rotating groove (11) is arranged on the first mounting plate (6) and the second mounting plate (10) to cooperate with the slotting device (4).

2. A cutting device for a light guide plate according to claim 1, characterized in that: The reset device comprises a partition (7), a limited rotation shaft (8) is arranged on the partition (7) in cooperation with a first fixed block (22) and a second fixed block (24), a rotating shaft (13) is arranged at one end of the limited rotation shaft (8), the rotating shaft (13) is connected to the device body (1), and a reset spring (15) is arranged around the outer periphery of the rotating shaft (13).

3. The cutting device for a light guide plate according to claim 1, characterized in that: The two ends of the device body (1) cooperate with the bottom slotting device (4) to form a first feed inlet (2), and the two sides of the device body (1) cooperate with the top slotting device (4) to form a second feed inlet (3). The device body (1) is provided with a pair of second guide plates (12) to cooperate with the first feed inlet (2), and the device body (1) is provided with a pair of first guide plates (5) to cooperate with the second feed inlet (3). One end of the device body (1) is provided with a first punching device (9) to cooperate with the first feed inlet (2), and one side of the device body (1) is provided with a second punching device (20) to cooperate with the second feed inlet (3). The first punching device (9) and the second punching device (20) have the same structure.

4. The cutting device for a light guide plate according to claim 1, characterized in that: The slotting device (4) further comprises a mounting box (26), wherein the mounting box (26) is sleeved outside the first fixing block (22) and the second fixing block (24); a mounting slot (23) is provided on the mounting box (26) to cooperate with the first fixing block (22) and the second fixing block (24); a baffle (31) is provided at the bottom of the first fixing block (22); a limit plate (28) is provided in the device body (1) to cooperate with the baffle (31); a buffer spring (29) is provided on the side of the limit plate (28) close to the baffle (31); and the buffer spring (29) is connected to the pressure plate (30).

5. The cutting device for a light guide plate according to claim 1, characterized in that: The first fixing block (22) and the second fixing block (24) are provided with an extension rod (33) in cooperation with the auxiliary cutter head (25); the auxiliary cutter head (25) is sleeved on the extension rod (33); a plurality of second fixing openings (32) are provided on the extension rod (33); and a plurality of first fixing openings (27) are provided at the bottom end of the auxiliary cutter head (25) in cooperation with the second fixing openings (32).

6. The cutting device for a light guide plate according to claim 1, characterized in that: The first fixing block (22) and the second fixing block (24) are provided with a buffer pad (34) in cooperation with the hole-opening cutter head (21).

7. The cutting device for a light guide plate according to claim 3, characterized in that: The first punching device (9) and the second punching device (20) comprise an accumulator body (19), a placement plate (16) being arranged on one surface of the accumulator body (19) close to the first feed port (2) or the second feed port (3), a plurality of punching needles (17) being arranged on the accumulator body (19), the punching needles (17) being arranged through the placement plate (16), and a plurality of buffer cushions (18) being arranged on the placement plate (16) in coordination with the punching needles (17).

8. A method for cutting a light guide plate, using the light guide plate cutting device according to any one of claims 1 to 7, characterized in that: Here are the steps: Step 1: insert the light guide plate from the first feed port (2), pre-punch the surface of the light guide plate with the first punching device (9), then the light guide plate continues to move, so that the slotting device (4) is snapped into the hole, driving the slotting device (4) to rotate, and after moving to a certain distance, the slot will lose the limit on the slotting device (4), so that the slotting device (4) will quickly reset, and during the reset process, the punching cutter head (21) will punch holes on the surface of the light guide plate, and then as the light guide plate continues to move, the surface of the light guide plate is punched back and forth; Step 2: When the light guide plate in the first feed inlet (2) is punched with a second row of holes, a second light guide plate is inserted from the second feed inlet (3), and when the slotting device (4) moves, the limit shaft in the reset device rotates; Step 3: The auxiliary blade head in the slotting device (4) in the second material inlet (3) is brought into contact with the light guide plate, thereby cutting the surface of the light guide plate; Step 4: Continue to push the light guide plate to perform another type of hole punching on the light guide plate in the second material inlet (3).

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