A doctor blade pendulum arm coater

Abstract

The present application relates to the technical field of coating, in particular to a scraper swing arm type coating machine, which comprises a machine body, a coating roller, a driving device, a scraper roller, a swing arm mechanism, a distance adjusting mechanism and a scraper jumping mechanism, the coating roller is rotatably arranged on the machine body, the driving device is used to drive the coating roller to rotate, the scraper roller is rotatably arranged on the swing arm mechanism, the swing arm mechanism is installed on the machine body and is used to drive the scraper roller to swing so as to control the scraper roller to approach or move away from the coating roller, the scraper jumping mechanism is used to control the swing arm mechanism to jump, and the distance adjusting mechanism is used to control the distance between the coating roller and the scraper roller. The swing arm mechanism is used to control the swing of the scraper roller, so that the scraper roller approaches or moves away from the coating roller along an arc, and the distance adjusting mechanism is used to control the distance between the scraper roller and the coating roller, so as to ensure the stability and reliability of the distance.

Description

Technical Field

[0001] This invention relates to the field of coating technology, and in particular to a doctor blade swing arm type coating machine. Background Technology

[0002] In current coating machines, the doctor blade roller moves closer to or away from the coating roller via a linear drive. This linear drive method inevitably requires two linear drive modules. When there is an error in the stroke of the linear drive module, it can easily cause deviations in the distance between the two ends of the doctor blade roller and the coating roller, resulting in different coating layer thicknesses during coating and thus affecting product quality. Summary of the Invention

[0003] This invention addresses the problems of existing technologies by providing a doctor blade swing arm coating machine. The doctor blade roller is controlled to move closer to or further away from the coating roller by swinging. A special gap adjustment mechanism is set to ensure that the gap between the doctor blade roller and the coating roller is adjustable after swinging, thereby ensuring that the gap between the two ends of the doctor blade roller and the two ends of the coating roller is basically the same.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] The present invention provides a doctor blade swing arm type coating machine, including a machine body, a coating roller, a drive device, a doctor blade roller, a swing arm mechanism, a spacing adjustment mechanism, and a jump knife mechanism. The coating roller is rotatably mounted on the machine body. The drive device is used to drive the coating roller to rotate. The doctor blade roller is rotatably mounted on the swing arm mechanism. The swing arm mechanism is installed on the machine body and is used to drive the doctor blade roller to swing so as to control the doctor blade roller to move closer to or away from the coating roller. The jump knife mechanism is used to control the jumping of the swing arm mechanism. The spacing adjustment mechanism is used to control the spacing between the coating roller and the doctor blade roller.

[0006] Furthermore, the swing arm mechanism includes a drive component and a swing component. The swing component is rotatably mounted on the machine body, and one end of the swing component is rotatably mounted on the output end of the drive component. The scraper roller is mounted on the other end of the swing component. The drive component drives and connects to one end of the swing component and is used to control the lifting and lowering of one end of the swing component. One end of the swing component is located between the drive component and the jumper mechanism. The spacing adjustment mechanism is used to abut against the other end of the swing component when the other end of the swing component is close to the coating roller.

[0007] Furthermore, the spacing adjustment mechanism includes an adjustment motor and an adjustment eccentric component. The adjustment motor is used to drive the adjustment eccentric component to rotate, and the adjustment eccentric component is used to abut against the other end of the swing component to control the height of the other end of the swing component.

[0008] Furthermore, the other end of the swing member is provided with a groove, and an abutment part is detachably provided in the groove, which is used to abut against the eccentric member;

[0009] The contact part is equipped with a contact switch, which is used to sense whether the contact part is in contact with the eccentric part. The contact switch is connected to the drive component via a signal.

[0010] Furthermore, the switch-dip mechanism includes a switch-dip cylinder, a transmission base, a transmission component, and a switch-dip eccentric component. The transmission base is mounted on the piston rod of the switch-dip cylinder. One end of the transmission component is rotatably connected to the transmission base, and the other end of the transmission component is connected to the switch-dip eccentric component.

[0011] Furthermore, the switch mechanism also includes a limiting member, which is positioned opposite to the piston rod of the switch cylinder. The limiting member is used to abut against the transmission seat to limit the stroke of the switch cylinder.

[0012] Furthermore, the oscillating component includes a connecting part and an oscillating part, the connecting part and the oscillating part are integrally formed, the connecting part and the oscillating part are set at an obtuse angle, the connecting part is connected to the driving component, and the scraper roller is installed on the oscillating part.

[0013] Furthermore, the machine body is also provided with a glue feeding mechanism, which includes a glue feeding tray, a glue support tray, a glue feeding drive module, and two glue blocking components. The glue feeding drive module is used to drive the glue feeding tray to approach or move away from the coating roller. The glue feeding tray abuts against the coating roller. The two glue blocking components are spaced apart on the glue feeding tray, and there is a channel between the two glue blocking components for allowing the glue to flow. The glue support tray is located directly below the glue feeding tray and is used to support the leaked glue.

[0014] Furthermore, the glue feeding drive module includes two guide modules and two glue feeding cylinders. Support seats are respectively provided on both sides of the bottom of the glue feeding disc. The support seats are used to support the glue feeding disc and make the glue feeding disc set at an acute angle with the horizontal plane. The two glue feeding cylinders are driven to drive the two support seats one-to-one. The glue feeding cylinders are used to drive the support seats to move closer to or away from the coating roller along the length direction of the guide module.

[0015] Furthermore, the machine body is also equipped with a gantry frame, which is fitted with hooks for hooking the middle of the scraper roller to prevent the middle of the scraper roller from bending.

[0016] The beneficial effects of the present invention are as follows: The present invention controls the swing of the doctor blade roller through the swing arm mechanism, thereby allowing the doctor blade roller to move closer to or away from the coating roller along the arc, and controls the distance between the doctor blade roller and the coating roller through the distance adjustment mechanism to ensure the stability and reliability of the distance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the present invention.

[0018] Figure 2 This is an internal schematic diagram of the present invention in its working state.

[0019] Figure 3 This is an internal schematic diagram of another working state of the present invention.

[0020] Figure 4 This is a schematic diagram showing the cooperation between the swing arm mechanism and the spacing adjustment mechanism of the present invention.

[0021] Figure 5 This is a cross-sectional view of the spacing adjustment mechanism of the present invention with the adjustment eccentricity component hidden.

[0022] Figure 6 This is a schematic diagram of the switch blade mechanism of the present invention.

[0023] Figure 7 This is a schematic diagram of the switch mechanism of the present invention with the switch eccentric component and the limiting component removed.

[0024] Figure 8 This is a schematic diagram of the glue feeding mechanism of the present invention.

[0025] Reference numerals: 1—Machine body, 2—Coating roller, 3—Drive unit, 4—Scraper roller, 5—Swing arm mechanism, 6—Gap adjustment mechanism, 7—Switch knife mechanism, 8—Glue feeding mechanism, 11—Gantry frame, 12—Hook, 50—Swing shaft, 51—Drive component, 52—Swing component, 53—Connecting part, 54—Swing part, 55—Groove, 56—Contact part, 57—Contact switch, 58—Drive cylinder, 59—Drive base, 61—Adjusting motor, 62—Adjusting Eccentric component, 63—Adjusting eccentric wheel, 64—Adjusting drive shaft, 65—Adjusting bearing seat, 71—Switch cutter eccentric component, 72—Switch cutter cylinder, 73—Drive seat, 74—Drive component, 75—Limiting component, 76—Switch cutter bearing seat, 77—Bearing, 78—Switch cutter eccentric component, 79—Switch cutter drive shaft, 81—Glue inlet disc, 82—Glue support disc, 83—Glue inlet drive module, 84—Glue blocking component, 85—Guide module, 86—Glue inlet cylinder, 87—Support seat. Detailed Implementation

[0026] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0027] like Figures 1 to 8 As shown, the present invention provides a doctor blade swing arm type coating machine, including a machine body 1, a coating roller 2, a drive device 3, a doctor blade roller 4, a swing arm mechanism 5, a spacing adjustment mechanism 6, and a jump knife mechanism 7. The coating roller 2 is rotatably mounted on the machine body 1. The drive device 3 is used to drive the coating roller 2 to rotate. The doctor blade roller 4 is rotatably mounted on the swing arm mechanism 5. The swing arm mechanism 5 is installed on the machine body 1 and is used to drive the doctor blade roller 4 to swing so as to control the doctor blade roller 4 to move closer to or away from the coating roller 2. The jump knife mechanism 7 is used to control the jumping of the swing arm mechanism 5. The spacing adjustment mechanism 6 is used to control the spacing between the coating roller 2 and the doctor blade roller 4.

[0028] In actual use, two spacing adjustment mechanisms 6 are used, one to hold the other side of the swing arm mechanism 5, to ensure that the distance between the two sides of the doctor blade roller 4 and the two sides of the coating roller 2 is the same. During operation, the operator first determines the total thickness between the film and the adhesive, then adjusts the position of the spacing adjustment mechanism 6 according to this total thickness, and then controls the swing arm mechanism 5 to swing the doctor blade roller 4 directly above the coating roller 2 until the swing arm mechanism 5 contacts the spacing adjustment mechanism 6, at which point the swing arm mechanism 5 stops moving. The distance between the doctor blade roller 4 and the spacing adjustment mechanism 6 at this point is the aforementioned total thickness value.

[0029] The present invention achieves the effect of swinging the doctor blade roller 4 above the coating roller 2 by means of a swinging mechanism in conjunction with the spacing adjustment mechanism 6, and keeping the spacing between the doctor blade roller 4 and the coating roller 2 on both sides the same, thereby ensuring that the thickness of the film material is consistent at all positions, thus ensuring the coating quality.

[0030] The switch blade mechanism 7 is designed so that when the fabric joint passes between the coating roller 2 and the scraper roller 4, the scraper roller 4 can be tilted upwards to allow the joint to pass through, thus preventing the scraper roller 4 from scraping off too much fabric or getting stuck at the joint due to excessive thickness at the joint.

[0031] In this embodiment, the swing arm mechanism 5 includes a drive member 51 and a swing member 52. The swing member 52 is rotatably mounted on the machine body 1. One end of the swing member 52 is rotatably mounted on the output end of the drive member 51. The scraper roller 4 is mounted on the other end of the swing member 52. The drive member 51 drives and connects to one end of the swing member 52 and is used to control the lifting and lowering of one end of the swing member 52. One end of the swing member 52 is located between the drive member 51 and the jumper mechanism 7. The spacing adjustment mechanism 6 is used to abut against the other end of the swing member 52 when the other end of the swing member 52 is close to the coating roller 2.

[0032] Specifically, the drive component 51 preferably consists of two drive cylinders 58 and two drive seats 59. The drive seats 59 are mounted to the piston rods of the drive cylinders 58, and the swing component 52 is rotatably disposed within the drive seats 59. This converts the linear drive of the drive component 51 into a swing drive for the swing arm mechanism 5, thereby achieving the effect of controlling the scraper roller 4 to swing closer to or further away from the coating roller 2 through the lever principle.

[0033] A swing shaft 50 is provided at the connection between the drive component 51 and the swing component 52, and the swing shaft 50 is rotated and mounted on the body 1.

[0034] Preferably, the oscillating component 52 includes a connecting portion 53 and an oscillating portion 54, which are integrally formed. The connecting portion 53 and the oscillating portion 54 are set at an obtuse angle. The connecting portion 53 is connected to the driving component 51, and the scraper roller 4 is mounted on the oscillating portion 54. The ratio of the length of the oscillating portion 54 to the length of the connecting portion 53 is not greater than 1:2. By making the length of the oscillating portion 54 smaller than the length of the connecting portion 53, in addition to proportionally reducing the driving stroke of the driving component 51 and feeding it back to the oscillating scraper roller 4 to improve the oscillation accuracy, it also allows the driving component 51 to achieve a stable oscillation effect of the scraper roller 4 with a smaller driving force, thereby reducing the power requirement of the driving component 51.

[0035] Furthermore, by setting the connecting part 53 and the swing part 54 at an obtuse angle, the swing member 52 requires less space and its strength is enhanced.

[0036] In this embodiment, the spacing adjustment mechanism 6 includes an adjustment motor 61 and an adjustment eccentric member 62. The adjustment motor 61 is used to drive the adjustment eccentric member 62 to rotate, and the adjustment eccentric member 62 is used to abut against the other end of the swing member 52 to control the height of the other end of the swing member 52.

[0037] Specifically, the operation of the spacing adjustment mechanism 6 is as follows: When it is necessary to increase the gap between the doctor blade roller 4 and the coating roller 2, simply let the swinging member 52 drive the doctor blade roller 4 away from the adjusting eccentric member, and then the adjusting motor drives the adjusting eccentric member to rotate, so that the thicker end of the adjusting eccentric member rotates to face upward. Then, let the swinging member 52 swing until it contacts the adjusting eccentric member, so that the thickness of the swinging member 52 increases, achieving the effect of adjusting the gap, making the method of adjusting the gap more convenient.

[0038] In this embodiment, the adjusting eccentric component includes an adjusting eccentric wheel 63 and an adjusting transmission shaft 64. The adjusting eccentric wheel 63 is mounted on the adjusting transmission shaft 64, and the rotating shaft of the adjusting motor is connected to the adjusting transmission shaft 64. Since the change between the thinnest and thickest ends of the adjusting eccentric wheel 63 is gradual, the operator only needs to control the rotation amplitude of the adjusting motor according to the difference before and after the gap change, thereby causing a corresponding change in the thickness of the upper end of the adjusting eccentric component, thus achieving a high-precision gap adjustment effect.

[0039] Specifically, the adjusting motor may be equipped with an encoder to detect its specific rotation posture, thereby determining the current posture of the adjusting eccentric wheel 63 and thus determining the current thickness value of the upward-facing end of the adjusting eccentric wheel 63.

[0040] In this embodiment, the adjustment mechanism further includes an adjustment bearing seat 65, in which the rotating shaft of the adjustment motor and the adjustment transmission shaft 64 are rotatably disposed, ensuring the smooth and stable rotation of the rotating shaft of the adjustment motor and the adjustment transmission shaft 64.

[0041] Furthermore, a groove 55 is provided at the other end of the swing member 52, and an abutment part 56 is detachably provided in the groove 55 for contacting the eccentric member. The abutment part 56 is preferably provided in the swing member 54, that is, in addition to adjusting the gap of the eccentric wheel 63, when the adjustment range is greater than the thickness difference between the two ends of the eccentric wheel 63, the operator can increase the adjustment range of the present invention by replacing the abutment part 56, thereby making the present invention more versatile.

[0042] In this embodiment, the contact portion 56 is equipped with a contact switch 57. The contact switch 57 is used to sense whether the contact portion 56 is in contact with the eccentric member. The contact switch 57 is signal-connected to the drive member 51. The contact switch 57 is used to control the drive member 51 to stop moving after the contact portion 56 contacts the eccentric member, thereby preventing the drive member 51 from continuing to apply power and causing the components to be squeezed. The contact switch 57 is a conventional device and will not be described in detail here.

[0043] In this embodiment, the switch-drill mechanism 7 includes a switch-drill cylinder 72, a transmission seat 73, a transmission component 74, and a switch-drill eccentric component 7871. The transmission seat 73 is mounted on the piston rod of the switch-drill cylinder 72. One end of the transmission component 74 is rotatably connected to the transmission seat 73, and the other end of the transmission component 74 is connected to the switch-drill eccentric component 7871.

[0044] The specific jumping action is as follows: Since the fabric joint is usually thicker, when the joint passes through the gap, the jump cutter mechanism 7 is activated. Specifically, the jump cutter eccentric 7871 rotates, causing its thicker end to rotate and come into contact with and press down on one end of the swing member 52. This leverages the lever principle to lift the other end of the swing member 52, allowing the joint to pass through the gap smoothly. After the joint has passed, the jump cutter eccentric 7871 only needs to reset to allow its thicker end to leave the swing member 52. The other end of the swing member 52 will then reset under the action of gravity and the drive member 51, restoring the gap to its original depth.

[0045] Since the length of the swing part 54 is less than the length of the connecting part 53, the switch cylinder 72 does not need excessive driving force to achieve the swing temperature effect of the swing arm mechanism 5, which helps to reduce the force applied to the swing arm mechanism 5 by the switch eccentric part 7871 and avoid damage to the connecting part 53 and the switch eccentric part 7871 due to excessive impact force.

[0046] Specifically, the switch-dip mechanism 7 also includes a limiting member 75, which is positioned opposite to the piston rod of the switch-dip cylinder 72. The limiting member 75 is used to abut against the transmission seat 73 to limit the stroke of the switch-dip cylinder 72, thereby ensuring that when the piston rod of the switch-dip cylinder 72 extends to its maximum stroke, it drives the thicker end of the switch-dip eccentric member 7871 to contact the swing member 52, thus preventing the switch-dip eccentric member 7871 from rotating too much and affecting the switch-dip effect.

[0047] In this embodiment, the switch blade mechanism 7 further includes a switch blade bearing seat 76, and the switch blade eccentric component 7871 is mounted on the switch blade bearing seat 76.

[0048] Specifically, the switchblade bearing housing 76 is provided with two bearings 77, and the switchblade eccentric component 7871 includes a switchblade eccentric wheel and a switchblade drive shaft 79. The switchblade eccentric wheel and the switchblade drive shaft 79 are non-concentrically connected, and the switchblade drive shaft 79 is rotatably disposed between the two bearings 77. By supporting the switchblade drive shaft 79 with the two bearings 77, it is ensured that the switchblade drive shaft 79 can rotate smoothly, thereby making the drive of the present invention more stable.

[0049] In this embodiment, the machine body 1 is further provided with a glue feeding mechanism 8, which includes a glue feeding disc 81, a glue support disc 82, a glue feeding drive module 83, and two glue blocking components 84. The glue feeding drive module 83 is used to drive the glue feeding disc 81 to approach or move away from the coating roller 2. The glue feeding disc 81 abuts against the coating roller 2. The two glue blocking components 84 are spaced apart on the glue feeding disc 81, and there is a channel between the two glue blocking components 84 for allowing the glue to flow. The glue support disc 82 is located directly below the glue feeding disc 81 and is used to support the leaked glue.

[0050] The glue feeding mechanism 8 supports the glue, allowing the coating roller 2 to pick up the glue from the glue feeding tray 81 and rotate until it contacts the film material, thus achieving the coating effect. If the glue is not completely coated and falls under gravity, it is caught and collected by the glue support tray 82, thus preventing pollution to the surrounding area. When it is necessary to replace the coating roller 2, the glue feeding tray 81 can be moved backward by the drive module, which is easy to operate.

[0051] In this embodiment, the glue-blocking component 84 and the glue-feeding tray 81 are movably connected, and there is a corresponding locking device between them. When the width of the processed film material changes, the distance between the two glue-blocking components 84 can be changed by simply controlling the movement of the two glue-blocking components 84, thereby achieving the effect of controlling the width of the glue-feeding tray 81 supporting the glue. This makes the present invention applicable to the coating of film materials of various specifications.

[0052] In this embodiment, the glue feeding drive module 83 includes two guide modules 85 and two glue feeding cylinders 86. Support seats 87 are respectively provided on both sides of the bottom of the glue feeding disc 81. The support seats 87 are used to support the glue feeding disc 81 and make the glue feeding disc 81 set at an acute angle with the horizontal plane. The two glue feeding cylinders 86 are driven to drive the two support seats 87 one-to-one. The glue feeding cylinders 86 are used to drive the support seats 87 to move closer to or away from the coating roller 2 along the length direction of the guide module 85.

[0053] The guide module 85 can be composed of a slide rail and a slider. The top of the support base 87 has an inclined surface. The glue inlet plate 81 is installed on the inclined surface, so that the glue can move downwards at an angle under the action of gravity until it comes into contact with the coating roller 2, ensuring that the coating roller 2 can reliably pick up the glue, thereby ensuring the coating effect.

[0054] In this embodiment, the machine body 1 is further provided with a gantry frame 11, and the gantry frame 11 is equipped with hooks 12. The hooks 12 are used to hook the middle part of the doctor blade roller 4 to prevent the middle part of the doctor blade roller 4 from bending. In cases where the length of the doctor blade roller 4 is large, the middle part is prone to collapse under the action of gravity. Therefore, the present invention provides hooks 12 to achieve the effect of supporting the middle part of the doctor blade roller 4, ensuring that the middle part of the doctor blade roller 4 will not collapse, resulting in a large error in the thickness of the adhesive in the middle position of the coating.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present invention without departing from the scope of the present invention are within the scope of the present invention.

Claims

1. A doctor blade swing arm type coating machine, characterized in that: It includes a machine body, a coating roller, a drive unit, a doctor blade roller, a swing arm mechanism, a spacing adjustment mechanism, and a jump knife mechanism. The coating roller is rotatably mounted on the machine body. The drive unit is used to drive the coating roller to rotate. The doctor blade roller is rotatably mounted on the swing arm mechanism. The swing arm mechanism is mounted on the machine body and is used to drive the doctor blade roller to swing so as to control the doctor blade roller to move closer to or away from the coating roller. The jump knife mechanism is used to control the jumping of the swing arm mechanism. The spacing adjustment mechanism is used to control the spacing between the coating roller and the doctor blade roller. The swing arm mechanism includes a driving component and a swing component. The swing component is rotatably mounted on the machine body. One end of the swing component is rotatably mounted on the output end of the driving component. The scraper roller is mounted on the other end of the swing component. The driving component drives and connects to one end of the swing component and is used to control the lifting and lowering of one end of the swing component. One end of the swing component is located between the driving component and the jumper mechanism. The spacing adjustment mechanism is used to abut against the other end of the swing component when the other end of the swing component is close to the coating roller. The spacing adjustment mechanism includes an adjustment motor and an adjustment eccentric component. The adjustment motor is used to drive the adjustment eccentric component to rotate, and the adjustment eccentric component is used to abut against the other end of the swing component to control the height of the other end of the swing component. The other end of the swinging component is provided with a groove, and a contact part is detachably provided in the groove. The contact part is used to contact the eccentric component. The contacting part is equipped with a contact switch, which is used to sense whether the contacting part is in contact with the eccentric part. The contact switch is connected to the driving part via a signal. The adjusting motor may be equipped with an encoder to detect its specific rotation posture, thereby determining the current posture of the adjusting eccentric wheel and thus determining the current thickness value of the upward-facing end of the adjusting eccentric wheel. The operation of the gap adjustment mechanism is as follows: When it is necessary to increase the gap between the doctor blade roller and the coating roller, simply let the oscillating component drive the doctor blade roller away from the adjusting eccentric component, and then the adjusting motor drives the adjusting eccentric component to rotate, so that the thicker end of the adjusting eccentric component rotates to face upward. Then let the oscillating component swing until it contacts the adjusting eccentric component, so that the thickness of the oscillating component increases, thereby achieving the effect of adjusting the gap and making the method of adjusting the gap more convenient. The machine body is also provided with a glue feeding mechanism, which includes a glue feeding tray, a glue support tray, a glue feeding drive module, and two glue blocking components. The glue feeding drive module is used to drive the glue feeding tray to approach or move away from the coating roller. The glue feeding tray abuts against the coating roller. The two glue blocking components are spaced apart on the glue feeding tray. There is a channel between the two glue blocking components for the glue to flow. The glue support tray is located directly below the glue feeding tray and is used to support the leaked glue. The glue-blocking component and the glue-feeding tray are movably connected, and there is a locking device between them. When the width of the processed film material changes, the distance between the two glue-blocking components can be changed by simply controlling the movement of the two glue-blocking components, thereby achieving the effect of controlling the width of the glue held by the glue-feeding tray.

2. The doctor blade swing arm coating machine according to claim 1, characterized in that: The switch-dip mechanism includes a switch-dip cylinder, a transmission base, a transmission component, and a switch-dip eccentric component. The transmission base is mounted on the piston rod of the switch-dip cylinder. One end of the transmission component is rotatably connected to the transmission base, and the other end of the transmission component is connected to the switch-dip eccentric component.

3. The doctor blade swing arm coating machine according to claim 2, characterized in that: The switch mechanism also includes a limiting member, which is positioned opposite the piston rod of the switch cylinder. The limiting member is used to abut against the transmission seat to limit the stroke of the switch cylinder.

4. The doctor blade swing arm coating machine according to claim 1, characterized in that: The oscillating component includes a connecting part and an oscillating part, which are integrally formed and set at an obtuse angle. The connecting part is connected to the driving component, and the scraper roller is installed on the oscillating part.

5. The doctor blade swing arm coating machine according to claim 1, characterized in that: The glue feeding drive module includes two guide modules and two glue feeding cylinders. Support seats are respectively provided on both sides of the bottom of the glue feeding disc. The support seats are used to support the glue feeding disc and make the glue feeding disc set at an acute angle with the horizontal plane. The two glue feeding cylinders are connected to the two support seats one by one. The glue feeding cylinders are used to drive the support seats to move closer to or away from the coating roller along the length direction of the guide module.

6. The doctor blade swing arm coating machine according to claim 1, characterized in that: The machine body is also equipped with a gantry frame, which is fitted with hooks. The hooks are used to hook the middle of the scraper roller to prevent the middle of the scraper roller from bending.

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