Scraper quick-changing device, coating machine material box and coating machine

Abstract

The utility model discloses a scraper quick change device, coating machine magazine and coater wherein the scraper quick change device comprises a scraper change base plate, the scraper change base plate is provided with a guide device and a scraper fixing plate driving device, the guide device is provided with a scraper fixing plate, the scraper fixing plate is provided with a scraper fixing recess, and the scraper fixing recess is provided with a scraper fixing groove. A scraper bin is further arranged on the scraper replacement bottom plate, a scraper pressing plate driving device is further included, and a scraper pressing plate is arranged at the output end of the scraper pressing plate driving device; the coating machine material box comprises the scraper quick-changing device. A material box adopted by the coating machine is provided with a scraper quick-changing device, or the coating machine comprises the material box of the coating machine. The scraper quick-changing device, the coating machine material box and the coating machine have the advantages of being simple in structure and easy to implement, operation difficulty and labor cost can be reduced when the scraper quick-changing device is applied, and production efficiency and production benefits are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lithium battery coating, especially a doctor blade quick change device, coating machine material box and coating machine. BACKGROUND

[0002] In the production of lithium batteries, the coating process is a core process. Among them, the gravure coating is a commonly used method for producing functional films in the lithium industry, which has the advantages of uniform film coating, thin coating thickness, and suitability for different solutions.

[0003] In the existing gravure coating process, the material box used for coating is a core component. In the process of gravure coating, the material box is divided into two structures: open and closed. The closed material box is modified and adjusted based on the open material box. An opening is provided on the side of the material box close to the roller, the single-sided doctor blade is replaced by a bidirectional doctor blade, and the roller and the doctor blade of the material box are tightly attached to achieve sealing. When the existing closed material box is used to coat functional films, the doctor blade on one side of the material box is in contact with the high-speed rotating roller for a long time, which causes the doctor blade to wear and deform, affecting the quality of the coating operation and requiring frequent replacement. The existing sealing type material box has a doctor blade fixing method of doctor blade pressing plate and bolt locking. Replacing the worn doctor blade requires disassembling all bolts, removing the doctor blade pressing plate, placing a new doctor blade, and locking the doctor blade pressing plate and bolts again. The steps are complicated, time-consuming and labor-intensive, and seriously affect the production efficiency of coating.

[0004] Therefore, the purpose of the utility model is to provide a new technical solution to solve the existing technical problems. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a doctor blade quick change device, a coating machine material box and a coating machine, which solves the technical defects of the prior art, such as the need to disassemble bolts to replace the doctor blade, the inconvenience of replacing the doctor blade, the time-consuming and labor-intensive replacement of the doctor blade, and the influence on production efficiency.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A scraper quick-change device, comprising a scraper replacement base plate, a guide device is arranged on the scraper replacement base plate, a scraper fixing plate driving device is arranged on the guide device, a scraper fixing plate is arranged on the guide device, a scraper fixing recess for mounting a scraper is arranged on the scraper fixing plate, an output end of the scraper fixing plate driving device is connected to the scraper fixing plate and can drive the scraper fixing plate to move along the guide direction of the guide device, a scraper storage bin is further arranged on the scraper replacement base plate, the scraper storage bin is used for storing spare scrapers, the scraper storage bin is located above the scraper fixing plate, a scraper pressing plate driving device is fixedly connected with the scraper replacement base plate or the scraper storage bin, an output end of the scraper pressing plate driving device is provided with a scraper pressing plate, the scraper pressing plate driving device is used for driving the scraper pressing plate to press against the scraper fixing plate and press the scraper tightly at the scraper fixing recess, when the scraper fixing plate driving device drives the scraper fixing plate to move on the guide device and makes the scraper fixing recess reach a position below the scraper storage bin and matched with the scraper storage bin, the spare scraper in the scraper storage bin can fall into the scraper fixing recess.

[0008] As a further improvement of the above technical solution, one wall surface of the scraper pressing plate close to the scraper fixing plate is a pressing knife pressing surface, a rubber strip mounting groove is arranged at a middle position of the pressing knife pressing surface, and a scraper pressing rubber strip is arranged in the rubber strip mounting groove; and / or

[0009] The guide device is a linear guide rail set, the linear guide rail set has two groups, and the linear guide rail set comprises linear guide rails and matched slide rail seats, the linear guide rails are mounted on the scraper replacement base plate, and the scraper fixing plate is mounted on the linear guide rails through the slide rail seats.

[0010] As a further improvement of the above technical solution, the scraper storage bin is fixedly mounted on the side of the scraper replacement base plate through a scraper storage bin fixing plate.

[0011] As a further improvement of the above technical solution, the scraper storage bin has a containing cavity, the spare scraper is contained in the containing cavity, and a scraper pressing block is arranged in the containing cavity and used for pressing above the spare scraper.

[0012] As a further improvement of the above technical solution, the scraper storage bin has two groups, the two groups of scraper storage bins are symmetrically distributed, the scraper storage bin is an integral molded part, the scraper storage bin comprises a first limiting side plate, a second limiting side plate and an end connecting plate connected between end portions of the first limiting side plate and the second limiting side plate, an internal space defined by the end connecting plate, the first limiting side plate and the second limiting side plate is the containing cavity, and two ends of the spare scraper and the scraper pressing block are contained in the containing cavity.

[0013] As a further improvement of the above technical solution, the end connecting plate of the scraper bin extends outward with an end connecting protrusion, the scraper bin fixing plate is an L-shaped fixing plate, one end of the L-shaped fixing plate is fixedly connected with the end connecting protrusion through a screw, and the other end of the L-shaped fixing plate is fixedly connected to the side of the scraper replacement bottom plate through a screw.

[0014] The end connecting plate of the scraper bin is provided with a pressing block guide groove from top to bottom, and the end of the scraper pressing block extends outward with a pressing block guide portion, and the pressing block guide portion penetrates through the pressing block guide groove.

[0015] As a further improvement of the above technical solution, the scraper bin and the scraper bin fixing plate are both made of stainless steel.

[0016] As a further improvement of the above technical solution, the scraper fixing plate driving device is a scraper fixing plate driving cylinder, and there are two scraper fixing plate driving cylinders, the scraper fixing plate driving cylinder is installed at the bottom of the scraper replacement bottom plate through a first cylinder mounting seat, and the scraper fixing plate driving cylinder is fixedly connected to the bottom of the scraper fixing plate through a cylinder connecting block, and a bottom plate avoiding groove for penetrating through the cylinder connecting block is arranged at the middle position of the scraper replacement bottom plate.

[0017] The scraper pressing plate driving device is a scraper pressing plate driving cylinder, and there are two scraper pressing plate driving cylinders, the scraper pressing plate driving cylinder is installed to one side of the scraper bin through a second cylinder mounting seat, and the scraper pressing plate is fixedly installed on the output shaft of the scraper pressing plate driving cylinder.

[0018] As a further improvement of the above technical solution, the bottom of the scraper bin is provided with a scraper bin bottom recess adapted to the scraper fixing recess of the scraper fixing plate, the recess depth of the scraper fixing recess is less than the thickness of the scraper, the recess depth of the scraper bin bottom recess is less than the thickness of the scraper, and the sum of the recess depth of the scraper fixing recess and the recess depth of the scraper bin bottom recess is greater than the thickness of the scraper and less than twice the thickness of the scraper.

[0019] As a further improvement of the above technical solution, the recess depth of the scraper fixing recess is 80% of the thickness of the scraper, and the recess depth of the scraper bin bottom recess is 30% of the thickness of the scraper.

[0020] The utility model also provides:

[0021] A coating machine material box, which comprises a material box main body and the scraper quick replacement device.

[0022] The utility model also provides:

[0023] A coating machine, wherein the material box of the coating machine is provided with the scraper quick replacement device, or the coating machine comprises the coating machine material box.

[0024] The utility model discloses a scraper quick change device, coating machine material box and coating machine, when needing to replace the scraper of this scraper quick change device, coating machine material box and coating machine, first through scraper pressure plate drive device drive scraper pressure plate loosens, then under the drive effect of scraper fixed plate drive device, scraper fixed plate retreats, in the process of scraper fixed plate retreat, the scraper in the spare scraper warehouse will push away the worn scraper and drop into scraper fixed recess, then scraper fixed plate drive device pushes the new scraper that drops into scraper fixed recess to the preset position forward, finally scraper pressure plate drive device drives scraper pressure plate and presses the new scraper in scraper fixed recess, and then completes the scraper replacement work. The whole scraper replacement work realizes the automatic replacement, avoids the trouble of frequently twisting the screw to replace the scraper of the prior art, reduces the labor intensity and the artificial cost, saves time, and greatly improves the production efficiency.

[0025] In conclusion, the scraper quick change device, coating machine material box and coating machine solve the technical defects of the prior art, such as the need to disassemble bolts to replace the scraper, the inconvenience of replacing the scraper, the time-consuming and laborious replacement, and the influence on the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] The utility model will be further explained in connection with the drawings and examples.

[0027] Figure 1 Is the assembly schematic drawing of the scraper quick change device in the utility model,

[0028] Figure 2 Is another assembly schematic drawing of the scraper quick change device in the utility model,

[0029] Figure 3 Is the assembly schematic drawing of the third angle of the scraper quick change device in the utility model,

[0030] Figure 4 Is Figure 3 The sectional view of A-A direction in,

[0031] Figure 5 Is Figure 4 The local enlarged view of B in,

[0032] Figure 6 Is the structure schematic drawing of the scraper warehouse in the utility model,

[0033] Figure 7 Is another structure schematic drawing of the scraper warehouse in the utility model,

[0034] Figure 8 Is Figure 7 The local enlarged view of B in. DETAILED DESCRIPTION

[0035] The concept, specific structure and generated technical effects of the present application will be described clearly and completely in combination with the embodiments and drawings, so as to fully understand the purpose, features and effects of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments, based on the embodiments of the present application, other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. In addition, all the connection / connection relationships involved in the patent do not mean that the components are directly connected, but that a better connection structure can be composed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the present application can be combined interactively without mutual contradiction and conflict. Refer to Figures 1-8 .

[0036] Refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 The present application provides: a scraper quick-change device, comprising a scraper replacement bottom plate 1, the scraper replacement bottom plate 1 is provided with a guide device 2, a scraper fixing plate driving device 3, the guide device 2 is provided with a scraper fixing plate 4, the scraper fixing plate 4 is provided with a scraper fixing concave position 41 for installing a scraper 9, the output end of the scraper fixing plate driving device 3 is connected to the scraper fixing plate 4 and can drive the scraper fixing plate 4 to move along the guide direction of the guide device 2, the scraper replacement bottom plate 1 is also provided with a scraper magazine 5, the scraper magazine 5 is used for storing spare scrapers 9, the scraper magazine 5 is located above the scraper fixing plate 4, further comprising a scraper pressing plate driving device 6 fixedly connected with the scraper replacement bottom plate 1 or the scraper magazine 5, the output end of the scraper pressing plate driving device 6 is provided with a scraper pressing plate 7, the scraper pressing plate driving device 6 is used for driving the scraper pressing plate 7 to press the scraper fixing plate 4 and press the scraper 9 tightly at the scraper fixing concave position 41, when the scraper fixing plate driving device 3 drives the scraper fixing plate 4 to move on the guide device 2 and makes the scraper fixing concave position 41 reach the position below the scraper magazine 5 and matched with the scraper magazine 5, the spare scraper 9 in the scraper magazine 5 can fall into the scraper fixing concave position 41.

[0037] In the application, there is no doctor blade 9 in the doctor blade fixing recess 41 of the doctor blade fixing plate 4, and the spare new doctor blade 9 is stored in the doctor blade storage 5. In the first work, the doctor blade pressing plate driving device 6 drives the doctor blade pressing plate 7 to lift and move away from the doctor blade fixing plate 4, so that there is no interaction force between the doctor blade fixing plate 4 and the doctor blade pressing plate 7. Then, the doctor blade fixing plate driving device 3 drives the doctor blade fixing plate 4 to move backward on the guide device 2 until the doctor blade fixing recess 41 on the doctor blade fixing plate 4 moves to the position matched with the doctor blade storage 5, the doctor blade fixing plate driving device 3 drives the doctor blade fixing plate 4 to stop, at this time, the bottom doctor blade 9 in the new doctor blade 9 stored in the doctor blade storage 5 falls into the doctor blade fixing recess 41 of the doctor blade fixing plate 4. Further, the doctor blade fixing plate driving device 3 drives the doctor blade fixing plate 4 to move forward, and the doctor blade 9 falling into the doctor blade fixing recess 41 moves forward together with the doctor blade fixing plate 4 until the doctor blade 9 moves to the preset installation position, and the doctor blade fixing plate driving device 3 drives the doctor blade fixing plate 4 and the doctor blade 9 to stop. After the doctor blade stops, the doctor blade pressing plate driving device 6 drives the doctor blade pressing plate 7 to press the doctor blade 9, so that the doctor blade 9 is pressed tightly at the doctor blade fixing recess 41, at this time, the doctor blade is installed, and the subsequent doctor blade 9 carries out normal coating work.

[0038] After working for a period of time, the doctor blade 9 is worn out and needs to be replaced. At this time, the coating machine stops working. Then the doctor blade pressing plate driving device 6 drives the doctor blade pressing plate 7 to lift, and the old doctor blade is loosened. Further, the doctor blade fixing plate driving device 3 drives the doctor blade fixing plate 4 and the old doctor blade to move backward, and in the process of moving backward, the edge of the bottom doctor blade 9 in the doctor blade storage 5 contacts the rear edge of the old doctor blade and pushes the old doctor blade out of the doctor blade fixing recess 41, realizing the separation of the old doctor blade. Further, after the old doctor blade falls out of the doctor blade fixing recess 41, the doctor blade fixing plate 4 continues to move backward until the doctor blade fixing recess 41 moves to the position matched with the doctor blade storage 5, and the above process is repeated to install a new doctor blade 9 in the doctor blade fixing recess 41, completing the automatic replacement of the doctor blade. Without disassembling the bolts and other work, the work difficulty and labor cost are greatly reduced, and the production time is greatly saved and the production efficiency is improved.

[0039] Referring to Figure 2 , Figure 4 , Figure 5 In the embodiment, one wall surface of the doctor blade pressing plate 7 close to the doctor blade fixing plate 4 is a doctor blade pressing surface, a rubber strip installation groove 71 is arranged in the middle position of the doctor blade pressing surface, and a doctor blade pressing rubber strip 72 is arranged in the rubber strip installation groove 71. The doctor blade pressing rubber strip 72 can further improve the pressing degree of the doctor blade 9, avoid loosening, make the pressing force more uniform, and make the work more stable and reliable.

[0040] Referring to Figure 6、 Figure 7 In the embodiment, in the technical scheme, the scraper bin 5 is fixedly installed on the side of the scraper replacement bottom plate 1 through the scraper bin fixing plate 500. The scraper bin 5 has a containing cavity 50, and the spare scraper 9 is contained in the containing cavity 50. The containing cavity 50 is provided with a scraper pressing block 8 used for pressing above the spare scraper 9. In application, the bottommost scraper 9 in the scraper bin 5 falls into the scraper fixing recess 41 through the gravity of the scraper 9 and the gravity of the scraper pressing block 8. The scraper 9 can more easily fall into the scraper fixing recess 41 through the setting of the scraper pressing block 8, the situation that the scraper 9 cannot smoothly fall into the scraper fixing recess 41 due to the friction force between the scraper 9 and the side of the scraper bin 5 is avoided, and the reliability of the device is improved.

[0041] Referring to Figure 6 、 Figure 7 Further, in the embodiment, the scraper bin 5 has two, and the two scraper bins 5 are symmetrically distributed. In other embodiments, the two scraper bins 5 can be integrally formed. The specific mode needs to be selected according to the specific needs or manufacturing process. The scraper bin 5 is an integrally formed piece. The scraper bin 5 includes a first limiting side plate 51, a second limiting side plate 52, and an end connecting plate 53 connected between the end portions of the first limiting side plate 51 and the second limiting side plate 52. The end connecting plate 53 and the first limiting side plate 51 and the second limiting side plate 52 together define an internal space as the containing cavity 50. Since the scraper bin 5 has two in the embodiment, the spare scraper 9 and the scraper pressing block 8 are contained in the containing cavity 50 at both ends. The middle positions of the spare scraper 9 and the scraper pressing block 8 are not contained in the containing cavity 50 of the scraper bin 5, and the state of the spare scraper 9 and the scraper pressing block 8 is observed by the user.

[0042] Referring to Figure 6 、 Figure 7 Further, the end connecting plate 53 of the scraper bin 5 outwardly extends an end connecting protrusion 54. The scraper bin fixing plate 500 is an L-shaped fixing plate. One end of the L-shaped fixing plate is fixedly connected with the end connecting protrusion 54 through a screw. The other end of the L-shaped fixing plate is fixedly connected to the side of the scraper replacement bottom plate 1 through a screw. The end connecting plate 53 and the end connecting protrusion 54 together bear the function of connecting the first limiting side plate 51 and the second limiting side plate 52 into a whole. In addition, the end connecting plate 53 of the scraper bin 5 is provided with a pressing block guide groove 55 from top to bottom. The end portion of the scraper pressing block 8 outwardly extends a pressing block guide portion 81. The pressing block guide portion 81 passes through the pressing block guide groove 55. The cooperation structure of the pressing block guide portion 81 and the pressing block guide groove 55 can further improve the stability of the device.

[0043] In addition, in the embodiment, when the scraper fixing plate 4 moves horizontally forward and backward, in order to prevent damage caused by metal friction to the entire device, the scraper bin 5 and the scraper bin fixing plate 500 are made of stainless steel components, which can minimize wear and tear.

[0044] With reference to Figure 1 , Figure 2 , Figure 4 , Figure 5 In the embodiment, the scraper fixing plate driving device 3 is a scraper fixing plate driving cylinder, and there are two scraper fixing plate driving cylinders. In other embodiments, oil cylinders, electric cylinders, linear motors and other existing components that can realize linear driving and meet performance requirements can be used to replace the scraper fixing plate driving cylinder. Specifically, the scraper fixing plate driving cylinder is installed at the bottom of the scraper replacement bottom plate 1 through a first cylinder mounting seat 31, and the scraper fixing plate driving cylinder is fixedly connected to the bottom of the scraper fixing plate 4 through a cylinder connecting block 32. A bottom plate avoidance slot 11 is provided in the middle of the scraper replacement bottom plate 1 for passing through the cylinder connecting block 32. The scraper pressing plate driving device 6 is a scraper pressing plate driving cylinder, and there are two scraper pressing plate driving cylinders. In other embodiments, oil cylinders, electric cylinders, linear motors and other existing components that can realize linear driving and meet performance requirements can be used to replace the scraper pressing plate driving cylinder. Specifically, the scraper pressing plate driving cylinder is installed on one side of the scraper bin 5 through a second cylinder mounting seat (not shown in the figure), and the scraper pressing plate 7 is fixedly installed on the output shaft of the scraper pressing plate driving cylinder.

[0045] With reference to Figure 1 , Figure 4 , Figure 5 In the embodiment, the guide device 2 is a linear guide rail set, and there are two linear guide rail sets. In other embodiments, other guide members that can meet performance requirements can be used to replace the linear guide rail set, such as guide columns, linear bearings, guide grooves, etc. The linear guide rail set includes a linear guide rail and a matching slide rail seat. The linear guide rail is installed on the scraper replacement bottom plate 1, and the scraper fixing plate 4 is installed on the linear guide rail through the slide rail seat.

[0046] With reference to Figure 4 , Figure 5 Figure 6 , Figure 7 , Figure 8In the above embodiment, in order to ensure that the scraper 9 falling into the scraper fixing recess 41 can smoothly leave the scraper bin 5 from one side of the scraper bin 5, and also to ensure that the worn old scraper can be smoothly separated from the scraper fixing recess 41 of the scraper fixing plate 4, a scraper bin bottom recess 56 matched with the scraper fixing recess 41 of the scraper fixing plate 4 is arranged at the bottom of the scraper bin 5, the recess depth of the scraper fixing recess 41 is less than the thickness of the scraper 9, the recess depth of the scraper bin bottom recess 56 is less than the thickness of the scraper 9, and the sum of the recess depth of the scraper fixing recess 41 and the recess depth of the scraper bin bottom recess 56 is greater than the thickness of the scraper 9 and less than twice the thickness of the scraper 9. In particular, in the embodiment, the recess depth of the scraper fixing recess 41 is 80% of the thickness of the scraper 9, and the recess depth of the scraper bin bottom recess 56 is 30% of the thickness of the scraper 9.

[0047] Based on the above-described scraper quick-change device, the utility model further provides:

[0048] A coating machine material box comprises a material box body and the scraper quick-change device.

[0049] Based on the above-described scraper quick-change device and coating machine material box, the utility model further provides:

[0050] A coating machine, wherein the material box of the coating machine is provided with the scraper quick-change device or the coating machine comprises the coating machine material box.

[0051] The above is a specific description of the preferred embodiment of the utility model, but the utility model creation is not limited to the above-mentioned embodiment, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the utility model, and these equivalent modifications or replacements are all included in the range defined by the claims of the present application.

Claims

1. A scraper quick change device, characterized in that: The invention comprises a scraper replacement base plate (1), wherein the scraper replacement base plate (1) is provided with a guide device (2) and a scraper fixing plate driving device (3), wherein the guide device (2) is provided with a scraper fixing plate (4), wherein the scraper fixing plate (4) is provided with a scraper fixing recess (41) for installing a scraper (9), wherein the output end of the scraper fixing plate driving device (3) is connected to the scraper fixing plate (4) and can drive the scraper fixing plate (4) to move along the guide direction of the guide device (2), and wherein the scraper replacement base plate (1) is further provided with a scraper bin (5), wherein the scraper bin (5) is used for storing spare scrapers (9), and the scraper bin (5) is located above the scraper fixing plate (4), and further comprises a scraper fixing recess (41) connected to the scraper fixing plate (4). The scraper replacement base plate (1) or the scraper magazine (5) is fixedly connected to a scraper pressure plate driving device (6), and a scraper pressure plate (7) is provided at the output end of the scraper pressure plate driving device (6). The scraper pressure plate driving device (6) is used to drive the scraper pressure plate (7) to press against the scraper fixing plate (4) and press the scraper (9) against the scraper fixing recess (41). When the scraper fixing plate driving device (3) drives the scraper fixing plate (4) to move on the guide device (2) and makes the scraper fixing recess (41) reach a position below the scraper magazine (5) and matching the scraper magazine (5), the spare scraper (9) in the scraper magazine (5) can fall into the scraper fixing recess (41).

2. The scraper quick-change device according to claim 1, characterized in that: A wall surface of the scraper pressing plate (7) close to the scraper fixing plate (4) is a scraper pressing surface, a rubber strip installation groove (71) is provided in the middle of the scraper pressing surface, and a scraper pressing rubber strip (72) is provided in the rubber strip installation groove (71); and / or The guiding device (2) is a linear guide rail group, which has two groups. The linear guide rail group includes linear guide rails and matching slide rail seats. The linear guide rails are installed on the scraper replacement base plate (1), and the scraper fixing plate (4) is installed on the linear guide rails through the slide rail seats.

3. The scraper quick-change device according to claim 1, characterized in that: The scraper bin (5) is fixedly mounted on the side of the scraper replacement base plate (1) via a scraper bin fixing plate (500).

4. The scraper quick-change device according to claim 3, characterized in that: The scraper magazine (5) has a receiving chamber (50), in which a spare scraper (9) is received. A scraper pressing block (8) is provided in the receiving chamber (50), and the scraper pressing block (8) is used to press on the spare scraper (9).

5. The scraper quick-change device according to claim 4, characterized in that: There are two scraper bins (5), which are symmetrically distributed. The scraper bins (5) are an integrally formed part. The scraper bins (5) include a first limiting side plate (51), a second limiting side plate (52), and an end connecting plate (53) connected between the ends of the first limiting side plate (51) and the second limiting side plate (52). The internal space defined by the end connecting plate (53), the first limiting side plate (51), and the second limiting side plate (52) is the accommodating cavity (50). The spare scraper (9) and the two ends of the scraper pressing block (8) are accommodated in the accommodating cavity (50). The end connecting plate (53) of the scraper magazine (5) is provided with an end connecting protrusion (54) extending outward, and the scraper magazine fixing plate (500) is an L-shaped fixing plate, one end of the L-shaped fixing plate is fixedly connected to the end connecting protrusion (54) by means of screws, and the other end of the L-shaped fixing plate is fixedly connected to the side of the scraper replacement base plate (1) by means of screws; The end connecting plate (53) of the scraper magazine (5) is provided with a pressing block guide groove (55) from top to bottom, and the end of the scraper pressing block (8) is extended outward with a pressing block guide portion (81), and the pressing block guide portion (81) passes through the pressing block guide groove (55).

6. The scraper quick-change device according to claim 1, characterized in that: The scraper fixing plate driving device (3) is a scraper fixing plate driving cylinder and there are two scraper fixing plate driving cylinders. The scraper fixing plate driving cylinder is installed on the bottom of the scraper replacement base plate (1) through a first cylinder mounting seat (31). The scraper fixing plate driving cylinder is fixedly connected to the bottom of the scraper fixing plate (4) through a cylinder connecting block (32). A base plate avoidance groove (11) for passing through the cylinder connecting block (32) is opened in the middle position of the scraper replacement base plate (1); The scraper pressure plate driving device (6) is a scraper pressure plate driving cylinder and there are two scraper pressure plate driving cylinders. The scraper pressure plate driving cylinder is installed on one side of the scraper bin (5) through a second cylinder mounting seat, and the scraper pressure plate (7) is fixedly installed on the output shaft of the scraper pressure plate driving cylinder.

7. The scraper quick-change device according to any one of claims 1 to 6, characterized in that: The bottom of the scraper bin (5) is provided with a scraper bin bottom recess (56) adapted to the scraper fixing recess (41) of the scraper fixing plate (4); the recess depth of the scraper fixing recess (41) is less than the thickness of the scraper (9); the recess depth of the scraper bin bottom recess (56) is less than the thickness of the scraper (9); the sum of the recess depths of the scraper fixing recess (41) and the recess depths of the scraper bin bottom recess (56) is greater than the thickness of the scraper (9) and less than twice the thickness of the scraper (9).

8. The scraper quick-change device according to claim 7, characterized in that: The depth of the scraper fixing recess (41) is 80% of the thickness of the scraper (9), and the depth of the scraper bin bottom recess (56) is 30% of the thickness of the scraper (9).

9. A coating machine cartridge, characterized in that: It comprises a material box main body and the scraper quick-change device according to any one of claims 1 to 8.

10. A coating machine, characterized in that: The material box used by the coating machine is provided with the scraper quick-change device according to any one of claims 1 to 8, or the coating machine includes the coating machine material box according to claim 9.

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