Surface film coating device for quartz stone plate production

Abstract

The utility model discloses a surface laminating device for quartz stone plate production, which relates to the technical field of artificial quartz plate production, and comprises a rack, a laminating unit, a position sensor, a conveying roller, a bearing seat, a movable clamping unit and a support plate, the support plate is arranged on the rack, two ends of the conveying roller are arranged on the support plate through the bearing seat, and the position sensor is arranged on the support plate. The conveying roller array is installed on the supporting plate, a through hole is formed in the supporting plate, the film covering units are installed on the upper side and the lower side of the supporting plate correspondingly, located on the upper side and the lower side of the through hole and used for covering the two faces of a quartz plate with films, and the position sensor is installed on the supporting plate and electrically connected with the film covering units. The movable clamping units are symmetrically installed on the two sides of the supporting plate and used for driving the quartz plate to move. The problems that an existing quartz plate film covering device can only conduct single-face film covering, and the working efficiency is not high when a quartz plate needing double-face film covering is met are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of ore processing equipment, and specifically relates to a surface coating device for the production of quartz stone slabs. Background Technology

[0002] Quartz stone slabs are a type of artificial stone widely used in building decoration and home furnishing. The surface coating process is an indispensable and crucial step in their production. The main function of the coating is to protect the surface of the slabs from scratches, contamination, or oxidation during transportation, storage, and subsequent processing, thereby ensuring the appearance quality of the product upon delivery.

[0003] Currently, since most types of quartz slabs only require single-sided lamination, traditional lamination equipment commonly used in the industry is designed for single-sided lamination. However, for quartz slabs requiring double-sided lamination, a more complex operation is needed. Specifically, the process involves first covering one side of the quartz slab with a protective film, then manually or mechanically flipping the slab, and repeating the lamination process on the other side. This process has significant drawbacks: firstly, single-layer lamination is inefficient, as each slab undergoes two independent lamination processes, leading to longer production cycles and limited capacity per unit time; secondly, manual flipping of the slab easily causes problems such as lamination misalignment and residual air bubbles, affecting the finished product yield; and thirdly, repetitive operations increase equipment energy consumption and labor costs, contradicting the high efficiency and efficiency requirements of modern production lines.

[0004] Therefore, there is a need for a surface coating device for quartz stone slab production. By optimizing the layout of the coating mechanism and the design of the transmission system, the technical bottleneck of traditional single-sided coating can be broken through, so as to improve the automation level and overall efficiency of quartz stone slab production. Utility Model Content

[0005] The purpose of this invention is to provide a surface coating device for quartz slab production, which solves the problem that existing quartz slab coating devices can only perform single-sided coating and have low efficiency when dealing with quartz slabs requiring double-sided coating. The specific technical solution is as follows:

[0006] A surface coating device for producing quartz slabs includes a frame, coating units, position sensors, conveying rollers, bearing seats, movable clamping units, and a support plate. The support plate is mounted on the frame. The two ends of the conveying rollers are mounted on the support plate via bearing seats, and multiple conveying rollers are arrayed along the length of the support plate. The support plate has through holes. Coating units are installed on the upper and lower sides of the support plate, respectively, and are located on the upper and lower sides of the through holes for coating both sides of the quartz slab. The position sensors are mounted on the support plate and are electrically connected to the coating units. The movable clamping units are symmetrically installed on both sides of the support plate for moving the quartz slab.

[0007] Preferably, the coating unit includes a support frame, a first push rod, a guide rod, a first motor, a coating roller, a connecting plate, and support rods. The support frame is mounted on the support plate. The first push rod is vertically mounted on the side of the support frame away from the through hole. The output end of the first push rod passes through the support frame and its end is connected to the connecting plate. The support frame has a guide hole. The guide rod is slidably mounted in the guide hole and connected to the connecting plate. The support rods are symmetrically mounted at both ends of the connecting plate and are located on the side away from the first push rod. The first motor is mounted on one of the support rods. The output end of the first motor is connected to one end of the coating roller, and the other end of the coating roller is rotatably connected to the other support rod.

[0008] Preferably, the support rod includes a fixed tube, a telescopic tube, a spring, and a limit switch. One end of the fixed tube is connected to the end of the connecting plate. The telescopic tube is slidably installed inside the other end of the fixed tube so that it can extend and retract along the axial direction of the telescopic tube. The spring is installed inside the fixed tube and its two ends elastically abut against the end of the telescopic tube and the inner sidewall of the fixed tube, respectively. The limit switch is installed inside the fixed tube so that it can abut against the telescopic tube when it retracts to a certain position. The limit switch is electrically connected to the first motor.

[0009] Preferably, a limit protrusion is provided inside the fixed tube, and the length of the limit protrusion is equal to the length of the limit switch.

[0010] Preferably, a housing is installed on any of the connecting plates, and a clearance hole is provided on the side of the housing near the support plate. A first lead screw is installed inside the housing, and a second motor is installed inside the housing. The output end of the second motor is connected to one end of the first lead screw. A cutter is installed on the first lead screw, and the part of the cutter connected to the second lead screw is in contact with the inner side wall of the housing. The cutter passes through the clearance hole.

[0011] Preferably, the movable clamping unit includes a second lead screw, a third motor, a sliding plate, a slider, a connecting rod, a second push rod, a slide rail, a pressure plate, a third push rod, and a C-shaped plate. The slide rail is installed on the top side of the support plate and has a groove that passes through the slide rail and the support plate. The sliding plate is slidably installed on the slide rail. The second lead screw is installed on the bottom side of the support plate. The output end of the third motor is connected to one end of the second lead screw. The slider is installed on the second lead screw and threadedly connected to it. The connecting rod is vertically slidably installed in the groove, and its two ends are connected to the sliding plate and the slider, respectively.

[0012] The second push rod is mounted on the slide plate, with its moving end facing the conveyor roller. The C-shaped plate is mounted on the moving end of the second push rod, with its opening facing the conveyor roller and the bottom of its inner sidewall flush with the highest point of the conveyor roller. The third push rod is mounted vertically on the top of the C-shaped plate, with its output end penetrating the C-shaped plate. The pressure plate is mounted on the output end of the third push rod.

[0013] Preferably, the pressure plate and the inner wall of the C-shaped plate are covered with rubber pads.

[0014] Preferably, a pressure sensor is installed on the pressure plate, and the pressure sensor is electrically connected to the third push rod.

[0015] Compared with existing technologies, this utility model has the following beneficial effects:

[0016] 1. This utility model improves production efficiency by installing film coating units on the upper and lower sides of the support plate to simultaneously coat both sides of the quartz plate.

[0017] 2. This invention uses a first motor to drive a coating roller to rotate. When the quartz plate enters the working area of ​​the coating roller, the coating rollers on both the upper and lower sides of the quartz plate clamp it. The first motor drives the coating roller to rotate, coating the quartz plate while simultaneously moving it. At this time, the moving clamping unit can release its grip on the quartz plate, and the second push rod drives the C-shaped plate to retract and move, avoiding the coating unit. Then, with the cooperation of the second lead screw and slider, the sliding plate moves to the area where the quartz plate has already been coated and re-clamps it. Therefore, the moving clamping unit does not interfere with the coating unit while moving and transporting the quartz plate.

[0018] 3. When the first push rod moves the connecting plate downwards, the protective film on the coating roller contacts the quartz plate and squeezes it. The squeezing force compresses the spring. When the telescopic tube triggers the limit switch, the first push rod stops moving. This ensures that the coating pressure of the coating roller on the quartz plate remains constant even as the diameter of the protective film decreases during use, preventing the protective film from becoming loosely adhered. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 yes Figure 1 Enlarged view of a portion of point A in the middle.

[0022] Figure 3 This is the front view of this utility model.

[0023] Figure 4 This is a side view of the present invention.

[0024] Figure 5 This is a schematic diagram of the support rod structure of this utility model.

[0025] Explanation of key figure labels:

[0026] 1. Frame; 2. Conveyor roller; 3. Bearing seat; 4. Coating unit; 41. Support frame; 42. First push rod; 43. Guide rod; 44. First motor; 45. Coating roller; 46. Connecting plate; 47. Support rod; 471. Fixed tube; 472. Telescopic tube; 473. Spring; 474. Limit switch; 5. Moving clamping unit; 51. Second lead screw; 52. Second push rod; 53. Third motor; 54. Slide plate; 55. Slider; 56. Connecting rod; 57. Slide rail; 58. Pressure plate; 59. Third push rod; 510. C-shaped plate; 511. Slide groove; 6. Support plate; 7. Housing; 8. Cutting tool; 9. Quartz plate; 10. Protective film. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Next, refer to Figures 1 to 5 The embodiments are described in detail to enable those skilled in the art to better understand the present invention:

[0029] The support plate 6 is bolted to the frame 1. The two ends of the conveyor rollers 2 are connected to bearing seats 3, which are bolted to the support plate 6. The conveyor rollers 2 are arrayed on the support plate 6 and assist the moving clamping unit 5 in transporting the quartz plate 9. The length of the conveyor rollers 2 is approximately two-thirds to one-half the width of the quartz plate 9, providing stable support while leaving the edges of the quartz plate 9 for the moving clamping unit 5 to clamp and fix. The conveyor rollers 2 can be replaced according to the actual size of the quartz plate 9 being produced. The support plate 6 has through holes for the coating rollers 45 below it to pass through and coat the quartz plate 9. Coating units 4 are installed on the upper and lower sides of the support plate 6, located on the upper and lower sides of the through holes, for coating both sides of the quartz plate 9. A position sensor is installed on the support plate 6 to detect whether the quartz plate 9 has been transported to the correct position. The position sensor is electrically connected to the coating unit 4. When the moving clamping unit 5 moves the quartz plate 9 to the designated position, the moving clamping unit 5 stops moving and releases the clamp on the quartz plate 9. The coating unit 4 then begins to coat the quartz plate 9 with a double-sided film.

[0030] The coating unit 4 includes a support frame 41, a first push rod 42, a guide rod 43, a first motor 44, a coating roller 45, a connecting plate 46, and support rods 47. The support frame 41 is bolted to the support plate 6. The first push rod 42 is bolted vertically to the side of the support frame 41 away from the through hole. The output end of the first push rod 42 passes through the support frame 41 and its end is connected to the midpoint of the connecting plate 46. The first push rod 42 is used to move the coating roller 45 closer to or away from the quartz plate 9. The support frame 41 has guide holes located on both sides of the first push rod 42. The guide rod 43 is slidably installed in the guide holes, and one end of the guide rod 43 is bolted to the connecting plate 46. The guide rod 43 ensures the stability of the connecting plate 46 and prevents uneven force on the quartz plate 9 when the coating roller 45 contacts it. The support rods 47 are symmetrically bolted to both ends of the connecting plate 46, located away from the first push rod 42. The two ends of the coating roller 45 are rotatably connected to the support rods 47. The roll of protective film 10 is fixed to the coating roller 45 by a retaining ring to restrict axial movement. The positions of the roll and the quartz plate 9 must be aligned with the midpoint of the conveying roller 2. The first motor 44 is mounted on either support rod 47, and the output end of the first motor 44 is connected to one end of the coating roller 45. The first push rod 42 here can be a hydraulic cylinder, an electric push rod, or a linear motor, etc. The axes of the two coating rollers 45 are located on the same vertical plane, so no torque is generated on the quartz plate 9, avoiding damage to the quartz plate 9.

[0031] When the quartz plate 9 enters the working area of ​​the coating roller 45, the first push rods 42 on both the upper and lower sides of the quartz plate 9 drive the coating roller 45 to move closer to the quartz plate 9 until the protective film 10 on the coating roller 45 clamps the quartz plate 9. The first motor 44 drives the coating roller 45 to rotate and coat the quartz plate 9 while moving the quartz plate 9. At this time, the moving clamping unit 5 can release the clamping of the quartz plate 9, and the second push rod 52 drives the C-shaped plate 510 to retract and move, avoiding the coating unit 4. Then, with the cooperation of the second lead screw 51 and the slider 55, the sliding plate 54 is moved to the area of ​​the quartz plate 9 that has been coated to re-clamp the quartz plate 9. Therefore, the moving clamping unit 5 will not interfere with the coating unit 4 while moving and transporting the quartz plate 9.

[0032] The support rod 47 includes a fixed tube 471, a telescopic tube 472, a spring 473, and a limit switch 474. One end of the fixed tube 471 is connected to the end of the connecting plate 46 by bolts. The other end of the telescopic tube 472 is slidably mounted on the fixed tube 471. The spring 473 is installed inside the fixed tube 471, and its two ends elastically abut against the end of the telescopic tube 472 and the inner wall of the fixed tube 471, respectively. The limit switch 474 is installed inside the fixed tube 471 by bolts and is electrically connected to the first motor 44. A limit protrusion is provided inside the fixed tube 471, and the length of the limit protrusion is equal to the length of the limit switch 474.

[0033] When the quartz plate 9 moves to the point where its end is flush with the plane of the two coating rollers 45, the first push rod 42 drives the connecting plate 46 to move closer to the quartz plate 9. After the protective film 10 on the coating roller 45 contacts the surface of the quartz plate 9, the telescopic tube 472 retracts and compresses the spring 473. When the telescopic tube 472 contacts the limit protrusion, it triggers the limit switch 474, which controls the first push rod 42 to stop. At this time, the spring 473 is compressed to a fixed length, so the pressure of the coating roller 45 on the quartz plate 9 is also a fixed and appropriate pressure, ensuring the coating quality of the coating roller 45 on the quartz plate 9. The coating unit 4 of this application can automatically adjust the height of the coating roller 45 according to the remaining film on the coating roller 45 and the thickness of the quartz slab to be coated, ensuring that the coating roller 45 and the quartz plate 9 are under appropriate pressure each time the coating roller 45 coats the quartz plate 9, thus ensuring the coating quality.

[0034] A housing 7 is mounted on any connecting plate 46. A first lead screw is rotatably mounted inside the housing 7, and a second motor is also mounted inside the housing 7. The output end of the second motor is connected to one end of the first lead screw. A cutter 8 is mounted on the first lead screw. The part of the cutter 8 connected to the second lead screw 51 is in contact with the inner wall of the housing 7, so the cutter 8 can only move along the axis of the lead screw. A clearance hole is provided on the side of the housing 7 near the support plate 6, through which the cutter 8 passes. After the coating roller 45 completes the coating of the quartz plate 9, since there is no pressure between the quartz plate 9 and the coating roller 45, the telescopic tube 472 no longer triggers the limit switch 474. At this time, the second motor starts and drives the second lead screw 51 to rotate, thereby driving the cutter 8 to move. The cutter 8 moves from one end of the clearance hole to the other end, completing the cutting of the protective film 10 in the process. When the cutter 8 is located at both ends of the clearance hole, it will not interfere with the quartz plate 9 and the protective film 10. The second motor here is a servo motor that can rotate in both directions.

[0035] In another embodiment, a segmented protective film 10 can be used, with each segment pre-cut. The size of the protective film 10 is the same as that of the quartz plate 9. After the coating roller 45 finishes coating the quartz plate 9, the entire protective film 10 falls off the roll without cutting. This embodiment is more convenient, but requires custom-made protective films of suitable size, which can be selected according to the actual situation.

[0036] The movable clamping unit 5 includes a second lead screw 51, a third motor 53, a sliding plate 54, a slider 55, a connecting rod 56, a second push rod 52, a slide rail 57, a pressure plate 58, a third push rod 59, and a C-shaped plate 510. The slide rail 57 is bolted to one side of the top of the support plate 6. A groove 511 is formed on the slide rail 57, passing through both the slide rail 57 and the support plate 6. The sliding plate 54 is slidably mounted on the slide rail 57. The second lead screw 51 is mounted on one side of the bottom of the support plate 6 via a bearing seat 3. The output end of the third motor 53 is connected to one end of the second lead screw 51. The slider 55 is mounted on the second lead screw 51 and threadedly connected to it. The connecting rod 56 is vertically slidably mounted within the groove 511, with both ends connected to the sliding plate 54 and the slider 55, respectively. When the third motor 53 drives the second lead screw 51 to rotate, the slider 55 moves along the axial direction of the second lead screw 51 because the connecting rod 56 and the sliding plate 54 restrict its rotation. Simultaneously, this causes the sliding plate 54 and the connecting rod 56 to move synchronously. The third motor 53 here is a servo motor capable of forward and reverse rotation.

[0037] The second push rod 52 is bolted to the slide plate 54, with its moving end facing the conveyor roller 2. A C-shaped plate 510 is bolted to the moving end of the second push rod 52, with its opening facing the conveyor roller 2. The bottom of the inner wall of the C-shaped plate 510 is flush with the highest point of the conveyor roller 2, ensuring that the C-shaped plate 510 will not interfere with the bottom of the quartz plate 9 regardless of its thickness. The third push rod 59 is vertically mounted on top of the C-shaped plate 510, with its output end penetrating through the C-shaped plate 510. A pressure plate 58 is mounted on the output end of the third push rod 59. A pressure sensor is mounted on the pressure plate 58 and is electrically connected to the third push rod 59. The operator sets the extension amount of the second push rod 52 according to the width of the quartz plate 9. Once the second push rod 52 has extended to the set length, the third push rod 59 is activated, moving the pressure plate 58 closer to the quartz plate 9. The third push rod 59 stops only when the pressure measured by the pressure sensor reaches the set value, ensuring the friction between the pressure plate 58 and the C-shaped plate 510 on the quartz plate 9. This adjustment is adaptive for quartz plates 9 of different thicknesses. The push rods here can be hydraulic cylinders, electric push rods, or linear motors, etc.

[0038] Rubber pads are covered on the pressure plate 58, the inner wall of the C-shaped plate 510, and the conveyor roller 2 to protect the surface of the quartz plate 9 and prevent scratches.

[0039] In summary, the usage process of this application is as follows: the quartz plate 9 is placed in the center of the conveyor roller 2, at which time the slide plate 54 is located at one end of the slide rail 57. The second push rod 52 extends to a specified length according to the length of the quartz plate 9. The third push rod 59 drives the pressure plate 58 to cooperate with the C-shaped plate 510 to clamp the end of the quartz plate 9 away from the coating roller 45. After clamping is completed, the third motor 53 starts, driving the second lead screw 51 to rotate. The slider 55 push rod connecting rod 56 drives the slide plate 54 to move. Therefore, the pressure plate 58 and the C-shaped plate 510 drive the quartz plate 9 to move. When the quartz plate 9 moves to the point where its end is flush with the plane of the two coating rollers 45, the first push rod 42 drives the connecting plate 46 to move closer to the quartz plate 9. After the protective film 10 on the coating rollers 45 contacts the surface of the quartz plate 9, the telescopic tube 472 retracts and compresses the spring 473. When the telescopic tube 472 contacts the limit protrusion, it triggers the limit switch 474, which controls the first push rod 42 to stop. At this time, the third push rod 59 and the second push rod 52 retract, releasing the clamp on the quartz plate 9 while retracting to avoid the coating unit 4. The first motor 44 starts, driving the coating rollers 45 on both sides of the quartz plate 9 to rotate, coating the quartz plate 9 while moving it. During this process, the third motor 53 starts, driving the slide plate 54 to move to the other side of the support frame 41 and then stops. After the coating roller 45 completes the coating of the quartz plate 9, the first push rod 42 drives the connecting plate 46 to return to the initial position. The moving clamping unit 5 then clamps the already coated quartz plate 9 again. Finally, the moving clamping unit 5 drives the quartz plate 9 to continue moving forward and leave the coating unit 4. After the moving clamping unit 5 completes the transport of the quartz plate 9, the third motor 53 reverses, driving the slide plate 54 to move to the initial position and begin the coating process for the next quartz plate 9.

[0040] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A surface coating device for the production of quartz stone slabs, characterized in that, The utility model provides a quartz plate coating device, including frame (1), film coating unit (4), position sensor, conveying roller (2), bearing seat (3), mobile clamping unit (5) and support plate (6), support plate (6) is installed on frame (1), conveying roller (2) both ends pass through bearing seat (3) and is installed on support plate (6), and multiple conveying roller (2) are arrayed and installed on support plate (6) along the length direction of support plate (6), the through -hole is set up on support plate (6), film coating unit (4) is installed on the both sides of support plate (6) respectively, film coating unit (4) is located the both sides of through -hole, is used to carry out film coating to both sides of quartz plate (9), position sensor is installed on support plate (6), and position sensor is electrically connected with film coating unit (4), mobile clamping unit (5) is installed on both sides of support plate (6) symmetrically, is used to drive quartz plate (9) to move.

2. The surface film coating device for producing a quartz stone plate according to claim 1, characterized in that, The utility model provides a quartz plate coating device, including frame (1), film coating unit (4), position sensor, conveying roller (2), bearing seat (3), mobile clamping unit (5) and support plate (6), support plate (6) is installed on frame (1), conveying roller (2) both ends pass through bearing seat (3) and is installed on support plate (6), and multiple conveying roller (2) are arrayed and installed on support plate (6) along the length direction of support plate (6), the through -hole is set up on support plate (6), film coating unit (4) is installed on the both sides of support plate (6) respectively, film coating unit (4) is located the both sides of through -hole, is used to carry out film coating to both sides of quartz plate (9), position sensor is installed on support plate (6), and position sensor is electrically connected with film coating unit (4), mobile clamping unit (5) is installed on both sides of support plate (6) symmetrically, is used to drive quartz plate (9) to move.

3. The surface film coating device for producing a quartz plate according to claim 2, wherein The utility model provides a quartz plate coating device, including frame (1), film coating unit (4), position sensor, conveying roller (2), bearing seat (3), mobile clamping unit (5) and support plate (6), support plate (6) is installed on frame (1), conveying roller (2) both ends pass through bearing seat (3) and is installed on support plate (6), and multiple conveying roller (2) are arrayed and installed on support plate (6) along the length direction of support plate (6), the through -hole is set up on support plate (6), film coating unit (4) is installed on the both sides of support plate (6) respectively, film coating unit (4) is located the both sides of through -hole, is used to carry out film coating to both sides of quartz plate (9), position sensor is installed on support plate (6), and position sensor is electrically connected with film coating unit (4), mobile clamping unit (5) is installed on both sides of support plate (6) symmetrically, is used to drive quartz plate (9) to move.

4. The surface film coating device for producing a quartz plate according to claim 3, wherein The utility model provides a quartz plate coating device, including frame (1), film coating unit (4), position sensor, conveying roller (2), bearing seat (3), mobile clamping unit (5) and support plate (6), support plate (6) is installed on frame (1), conveying roller (2) both ends pass through bearing seat (3) and is installed on support plate (6), and multiple conveying roller (2) are arrayed and installed on support plate (6) along the length direction of support plate (6), the through -hole is set up on support plate (6), film coating unit (4) is installed on the both sides of support plate (6) respectively, film coating unit (4) is located the both sides of through -hole, is used to carry out film coating to both sides of quartz plate (9), position sensor is installed on support plate (6), and position sensor is electrically connected with film coating unit (4), mobile clamping unit (5) is installed on both sides of support plate (6) symmetrically, is used to drive quartz plate (9) to move.

5. The surface film coating device for producing a quartz plate according to claim 2, wherein A box (7) is mounted on any of the connecting plates (46), an avoiding hole is arranged on the side close to the supporting plate (6), a first lead screw is mounted in the box (7), a second motor is mounted in the box (7), the output end of the second motor is connected with one end of the first lead screw, a cutter (8) is mounted on the first lead screw, the part connected with the second lead screw (51) of the cutter (8) is attached to the inner side wall of the box (7), and the cutter (8) penetrates through the avoiding hole.

6. The surface film coating device for producing a quartz plate according to claim 1, wherein The moving clamping unit (5) comprises a second lead screw (51), a third motor (53), a sliding plate (54), a sliding block (55), a connecting rod (56), a second push rod (52), a sliding rail (57), a pressing plate (58), a third push rod (59) and a C-shaped plate (510), the sliding rail (57) is mounted on one side of the top of the supporting plate (6), a sliding groove (511) is formed in the sliding rail (57), the sliding groove (511) penetrates through the sliding rail (57) and the supporting plate (6), the sliding plate (54) is slidingly mounted on the sliding rail (57), the second lead screw (51) is mounted on one side of the bottom of the supporting plate (6), the output end of the third motor (53) is connected with one end of the second lead screw (51), the sliding block (55) is mounted on the second lead screw (51) and is in threaded connection with the second lead screw (51), the connecting rod (56) is vertically slidingly mounted in the sliding groove (511), and the two ends of the connecting rod (56) are connected with the sliding plate (54) and the sliding block (55) respectively. The second push rod (52) is mounted on the sliding plate (54), the moving end of the second push rod (52) faces the conveying roller (2), the C-shaped plate (510) is mounted on the moving end of the second push rod (52), the opening of the C-shaped plate (510) faces the conveying roller (2), the inner side wall bottom of the C-shaped plate (510) is flush with the highest point of the conveying roller (2), the third push rod (59) is vertically mounted on the top of the C-shaped plate (510), and the output end of the third push rod (59) penetrates through the C-shaped plate (510).

7. The surface film coating apparatus for producing a quartz plate according to claim 6, wherein Rubber pads are covered on the pressing plate (58) and the inner side wall of the C-shaped plate (510).

8. The surface film coating apparatus for producing a quartz plate according to claim 6, wherein A pressure sensor is mounted on the pressing plate (58) and is electrically connected with the third push rod (59). A pressure sensor is mounted on the pressing plate (58) and is electrically connected with the third push rod (59).

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