Automatic spraying machine

Abstract

The utility model belongs to the technical field of spraying equipment, and particularly relates to an automatic spraying machine which comprises an installation support, a material clamping mechanism, a spraying mechanism and a self-cleaning material blocking mechanism. The self-cleaning material blocking mechanism comprises a material blocking mounting plate arranged on the mounting support, a material blocking belt capable of moving circularly and winding the material blocking mounting plate, a cleaning brush rotationally arranged on the material blocking mounting plate, a first cleaning driving assembly and a second cleaning driving assembly. Then spraying is conducted through the spraying mechanism, meanwhile, the material blocking belt is located above the part, needing to be blocked, of the product, the material blocking belt is used for blocking the coating, meanwhile, the material blocking belt is driven by the first cleaning driving assembly to move circularly and is matched with the cleaning brush rotating in the reverse direction for cleaning, and the coating on the inner surface, used for blocking the coating, of the material blocking belt is removed in time; the excessive coating accumulated on the material blocking belt is prevented from dripping on a product below, automatic spraying is achieved, the efficiency is higher, and the product quality is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of spraying equipment, and particularly relates to an automatic spraying machine.

Background Art

[0002] A spraying machine is a device used to evenly spray coatings, paints, or other coating materials onto various surfaces, and it is widely used in industries such as construction, automotive, furniture, shipbuilding, and aerospace. However, for some products, there is no need to spray coatings at the installation and connection parts. Therefore, the existing spraying machines use a baffle plate arranged above the product to block, so as to prevent the coating from being sprayed onto the parts of the product that do not need to be sprayed. However, during the spraying process, the coating will accumulate on the baffle plate. If it is not processed for a long time, a certain amount of accumulated coating will drip onto the product below, affecting the product quality.

Content of the Utility Model

[0003] The purpose of the utility model is to provide an automatic spraying machine that can automatically spray products, uses a baffle belt to block the coating, and can timely clean the inner surface of the baffle belt used to block the coating during the spraying process.

[0004] The utility model is realized by the following technical solutions:

[0005] An automatic spraying machine, comprising:

[0006] An installation bracket;

[0007] A material clamping mechanism, which is arranged on the installation bracket and is used for clamping and fixing the product to be sprayed;

[0008] A spraying mechanism, which is arranged on the installation bracket and is used for spraying the product to be sprayed clamped and fixed on the material clamping mechanism;

[0009] A self-cleaning baffle mechanism, which is arranged on the installation bracket. The self-cleaning baffle mechanism includes:

[0010] Baffle mounting plates, two of the baffle mounting plates are oppositely arranged on the installation bracket;

[0011] A baffle belt, which can move in a cycle and is wound around the baffle mounting plates for blocking the coating;

[0012] A cleaning brush, which is rotatably arranged on the baffle mounting plate and is in contact with the inner surface of the baffle belt used for blocking the coating;

[0013] A first cleaning driving component, which is arranged on the baffle mounting plate and is used for driving the baffle belt to move in a cycle;

[0014] A second cleaning driving component, which is arranged on the baffle mounting plate and is used for driving the cleaning brush to rotate.

[0015] As described above, an automatic spraying machine, the self-cleaning material blocking mechanism further includes an auxiliary cleaning component, and the auxiliary cleaning component includes:

[0016] An auxiliary cleaning mounting member, which is arranged on the material blocking mounting plate;

[0017] An auxiliary cleaning movable member, which is movably arranged on the auxiliary cleaning mounting member;

[0018] An auxiliary cleaning roller brush, which is rotatably arranged on the auxiliary cleaning movable member and is opposite to a part of the material blocking belt;

[0019] An elastic element, which is arranged between the auxiliary cleaning movable member and the auxiliary cleaning mounting member and is used to keep the auxiliary cleaning movable member and the auxiliary cleaning roller brush in a tendency to move towards the material blocking belt.

[0020] As described above, an automatic spraying machine, a cleaning component is further arranged on the mounting bracket, and the cleaning component includes:

[0021] A cleaning box;

[0022] A cleaning lifting platform, which is arranged on the mounting bracket in a lifting and movable manner, and the cleaning box is placed on the cleaning lifting platform;

[0023] A cleaning lifting driving member, which is arranged between the cleaning lifting platform and the mounting bracket and is used to drive the cleaning lifting platform to move up and down. The cleaning lifting driving member can drive the cleaning box to move to a position where the cleaning brush and a part of the material blocking belt are located inside the cleaning box.

[0024] As described above, an automatic spraying machine, the first cleaning driving component includes:

[0025] A belt conveying driving wheel, which is rotatably arranged on the material blocking mounting plate;

[0026] A belt conveying driving motor, which is arranged on the material blocking mounting plate and is used to drive the belt conveying driving wheel to rotate;

[0027] A belt conveying driven wheel, which is rotatably arranged on the material blocking mounting plate. The material blocking belt can move in a cycle around the belt conveying driving wheel and the belt conveying driven wheel, and the cleaning brush is attached to the belt conveying driven wheel and the inner surface of the material blocking belt for blocking the paint.

[0028] As described above, an automatic spraying machine, a clamping component is arranged on the material blocking mounting plate, and the clamping component includes:

[0029] A clamping mounting member, which is arranged on the material blocking mounting plate;

[0030] A clamping cylinder, which is arranged on the clamping mounting member;

[0031] Clamping plates, two clamping plates are oppositely arranged at the clamping output end of the clamping cylinder and are respectively located on both sides of the material blocking belt.

[0032] As described above, an automatic spraying machine, the self-cleaning material baffle mechanism further includes a horizontal adjustment component for adjusting the distance between the two material baffle mounting plates, and the horizontal adjustment component includes:

[0033] A horizontal adjustment mounting plate, which is arranged on the mounting bracket;

[0034] A horizontal adjustment slide rail, which is horizontally arranged on the horizontal adjustment mounting plate;

[0035] A horizontal adjustment slide plate, which is movably arranged on the horizontal adjustment slide rail, and the material baffle mounting plate is arranged on the horizontal adjustment slide plate;

[0036] A horizontal adjustment driving member, which is arranged on the horizontal adjustment mounting plate for driving the horizontal adjustment slide plate to move.

[0037] As described above, an automatic spraying machine, the self-cleaning material baffle mechanism further includes a height adjustment component for adjusting the height of the material baffle mounting plate, and the height adjustment component includes:

[0038] A height adjustment mounting plate, which is arranged on the mounting bracket;

[0039] A height adjustment slide rail, which is vertically arranged on the height adjustment mounting plate, and the horizontal adjustment mounting plate is movably arranged on the height adjustment slide rail;

[0040] A height adjustment driving member, which is arranged on the height adjustment mounting plate for driving the horizontal adjustment mounting plate to move.

[0041] As described above, an automatic spraying machine, the clamping mechanism includes:

[0042] A first clamping mounting plate, which is horizontally movably arranged on the mounting bracket;

[0043] A second clamping mounting plate, and the two second clamping mounting plates are oppositely arranged on the first clamping mounting plate;

[0044] A fixed clamp, which is arranged on one side where the two second clamping mounting plates face each other;

[0045] A first clamping driving assembly, which is arranged on the mounting bracket for driving the first clamping mounting plate to move horizontally;

[0046] A second clamping driving assembly, which is arranged on the first clamping mounting plate for driving the two second clamping mounting plates to move towards each other and approach, so as to drive the two fixed clamps to clamp and fix the product to be sprayed;

[0047] A rotation driving assembly, which is arranged on the second clamping mounting plate for driving the fixed clamp to rotate.

[0048] As described above, an automatic spraying machine further includes a feeding mechanism, and the feeding mechanism includes:

[0049] A discharging plate, which is provided with a discharging groove for placing products to be sprayed.

[0050] A feeding lifting and traversing assembly, which is arranged on the mounting bracket and is used to drive the discharging plate to lift and traverse, so that the products to be sprayed on the discharging groove are opposite to the fixed fixtures.

[0051] As described above, an automatic spraying machine, the spraying mechanism includes:

[0052] A spraying mounting plate, which is arranged on the mounting bracket;

[0053] A spraying slide rail, which is horizontally arranged on the spraying mounting plate;

[0054] A spraying slider, which is movably arranged on the spraying slide rail;

[0055] A spraying driving part, which is arranged on the spraying mounting plate and is used to drive the spraying slider to move;

[0056] A spraying mounting rod, which is horizontally arranged on the spraying slider and is perpendicular to the moving direction of the spraying slider;

[0057] Spraying guns, and a plurality of the spraying guns are arranged on the spraying mounting rod along the length direction of the spraying mounting rod.

[0058] Compared with the prior art, the present utility model has the following advantages:

[0059] The present utility model provides an automatic spraying machine, which includes a mounting bracket, a clamping mechanism, a spraying mechanism and a self-cleaning material blocking mechanism. The self-cleaning material blocking mechanism includes a material blocking mounting plate arranged on the mounting bracket, a material blocking belt that can move circularly around the material blocking mounting plate, a cleaning brush rotatably arranged on the material blocking mounting plate, a first cleaning driving assembly arranged on the material blocking mounting plate, and a second cleaning driving assembly for driving the cleaning brush to rotate. During production, first, the clamping mechanism is used to clamp and fix the products to be sprayed, and then the spraying mechanism is used to spray the surface of the products. At the same time, the material blocking belt is located above the parts of the products that need to be blocked, and the material blocking belt is used to block the paint. At the same time, the material blocking belt is driven by the first cleaning driving assembly to move circularly, and is cooperated with the cleaning brush rotating in the reverse direction for cleaning, so as to timely remove the paint on the inner surface of the material blocking belt for blocking the paint, and avoid excessive paint accumulated on the material blocking belt from dripping onto the products below. It not only realizes automatic spraying with higher efficiency, but also ensures the product quality.

Description of the Drawings

[0060] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the description of the embodiments.

[0061] Figure 1This is a schematic structural diagram of an automatic spraying machine in the specific embodiment of the present utility model;

[0062] Figure 2 This is a schematic structural diagram of a self-cleaning material blocking mechanism in the specific embodiment of the present utility model;

[0063] Figure 3 This is a partial schematic structural diagram of a self-cleaning material blocking mechanism in the specific embodiment of the present utility model;

[0064] Figure 4 This is a schematic structural diagram of a cleaning component in the specific embodiment of the present utility model;

[0065] Figure 5 This is a schematic structural diagram of a material clamping mechanism in the specific embodiment of the present utility model;

[0066] Figure 6 This is a schematic structural diagram of a spraying mechanism in the specific embodiment of the present utility model;

[0067] Figure 7 This is a schematic structural diagram of a feeding mechanism in the specific embodiment of the present utility model.

Specific Embodiment

[0068] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0069] When the embodiments of the present utility model mention ordinal numbers such as "first" and "second", unless they actually express an order meaning according to the context, they should be understood as only for distinction.

[0070] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0071] Specific embodiments, such as Figure 1-7The automatic spraying machine shown in the figure comprises: a mounting bracket 1; a clamping mechanism 3, which is arranged on the mounting bracket 1 and is used to clamp and fix the product to be sprayed; a spraying mechanism 4, which is arranged on the mounting bracket 1 and is used to spray the product to be sprayed clamped and fixed on the clamping mechanism 3; a self-cleaning material blocking mechanism 2, which is arranged on the mounting bracket 1, and the self-cleaning material blocking mechanism 2 comprises: a material blocking mounting plate 21, and the two material blocking mounting plates 21 are relatively arranged on the mounting bracket 1; a material blocking belt 22, which can be circulated and wound around the material blocking mounting plate 21 for shielding the paint; a cleaning brush 23, which is rotatably arranged on the material blocking mounting plate 21 and is in contact with the inner surface of the material blocking belt 22 for shielding the paint; a first cleaning drive component 24, which is arranged on the material blocking mounting plate 21 and is used to drive the material blocking belt 22 to circulate; a second cleaning drive component 25, which is arranged on the material blocking mounting plate 21 and is used to drive the cleaning brush 23 to rotate. During production, the clamping mechanism is first used to clamp and fix the product 100 to be sprayed, and then the spraying mechanism is used to spray the surface of the product. At the same time, the blocking belt is located above the part of the product that needs to be blocked, and the paint is blocked by the blocking belt. At the same time, the blocking belt is driven by the first cleaning drive component to move in a cycle, and is cleaned with a cleaning brush that rotates in the opposite direction, so as to promptly remove the paint on the inner surface of the blocking belt used to block the paint, and avoid excess paint accumulated on the blocking belt from dripping onto the product below. Not only does it realize automated spraying, it is more efficient and ensures product quality.

[0072] Specifically, the self-cleaning material blocking mechanism further includes an auxiliary cleaning assembly 26, which includes: an auxiliary cleaning mounting member 261, which is arranged on the material blocking mounting plate 21; an auxiliary cleaning movable member 262, which is movably arranged on the auxiliary cleaning mounting member 261; an auxiliary cleaning roller brush 263, which is rotatably arranged on the auxiliary cleaning movable member 262 and is opposite to a part of the material blocking belt 22; and an elastic element 264, which is arranged between the auxiliary cleaning movable member 262 and the auxiliary cleaning mounting member 261, and is used to keep the auxiliary cleaning movable member 262 and the auxiliary cleaning roller brush 263 moving in a direction close to the material blocking belt 22. The elastic element 264 is a spring, which is sleeved on the auxiliary cleaning movable member 262, so that the auxiliary cleaning roller brush 263 fits the outer surface of the material blocking belt 22, realizes the washing of the outer surface, and prevents the paint from accumulating on the outer surface of the material blocking belt 22 and dripping onto the product.

[0073] In addition, the mounting bracket 1 is also provided with a cleaning assembly 27, which includes a cleaning box 271, and a portion of the retaining belt 22 is located in the cleaning box 271. When in use, clean water and detergent can be injected into the cleaning box 271 to cooperate with the cleaning brush 23 to clean the retaining belt 22.

[0074] Further, the cleaning assembly 27 further includes: a cleaning lifting platform 272, which is arranged on the mounting bracket 1 in a lifting and movable manner, and the cleaning tank 271 is placed on the cleaning lifting platform 272; a cleaning lifting driving member 273, which is arranged between the cleaning lifting platform 272 and the mounting bracket 1 and is used to drive the cleaning lifting platform 272 to move up and down. The cleaning lifting driving member 273 can drive the cleaning tank 271 to move to a position where a part of the cleaning brush 23 and the material blocking belt 22 is located inside the cleaning tank 271. When it is necessary to replace the cleaning liquid in the cleaning tank 271, the cleaning lifting driving member 273 is used to drive the cleaning lifting platform 272 to descend, so that the cleaning tank 271 can be taken out smoothly, which is convenient to use. Optionally, the cleaning lifting driving member 273 can be driven by a telescopic cylinder. Optionally, in the present application, the cleaning lifting driving member 273 adopts a handwheel in cooperation with a lead screw to drive the lifting of the cleaning lifting platform 272.

[0075] Specifically, in order to facilitate the removal of the cleaning tank 271, handles 211 are arranged on both sides of the cleaning tank 271 and are arranged oppositely.

[0076] More specifically, the first cleaning driving assembly 24 includes: a belt conveying driving wheel 241, which is rotatably arranged on the material blocking mounting plate 21; a belt conveying driving motor 242, which is arranged on the material blocking mounting plate 21 and is used to drive the belt conveying driving wheel 241 to rotate; a belt conveying driven wheel 243, which is rotatably arranged on the material blocking mounting plate 21. The material blocking belt 22 can move in a cycle around the belt conveying driving wheel 241 and the belt conveying driven wheel 243, and the cleaning brush 23 is attached to the belt conveying driven wheel 243 and the inner surface of the material blocking belt 22 for blocking the coating. The cleaning brush 23 is also attached to the belt conveying driven wheel 243 close to the material blocking belt 22 to wash the surface of the belt conveying driven wheel 243, so as to prevent the coating on the material blocking belt 22 from being washed onto the lower belt conveying driven wheel 243 and ensure the normal movement of the material blocking belt 22.

[0077] Further, the second cleaning driving assembly 25 includes: a transmission wheel 251, which is arranged at one end of the cleaning brush 23; a cleaning driving motor 252, which is arranged on the material blocking mounting plate 21; a transmission belt 253, which is sleeved on the rotation output ends of the transmission wheel 251 and the cleaning driving motor 252. The automatic rotation and washing of the cleaning brush 23 are realized.

[0078] Still further, a clamping assembly 28 is arranged on the material blocking mounting plate 21. The clamping assembly 28 includes: a clamping mounting member 281, which is arranged on the material blocking mounting plate 21; a clamping cylinder 282, which is arranged on the clamping mounting member 281; two clamping plates 283, which are oppositely arranged at the clamping output end of the clamping cylinder 282 and are respectively located on both sides of the material blocking belt 22. When it is necessary to urgently stop the movement of the material blocking belt 22, the clamping cylinder 282 is used to drive the clamping plates 283 to clamp the material blocking belt 22 to realize the stop of the material blocking belt 22, and the use is safer.

[0079] Specifically, the self-cleaning material blocking mechanism applied to the spraying machine further includes a horizontal adjustment component 29 for adjusting the distance between the two material blocking mounting plates 21. The horizontal adjustment component 29 includes: a horizontal adjustment mounting plate 291, which is arranged on the mounting bracket 1; a horizontal adjustment slide rail 292, which is horizontally arranged on the horizontal adjustment mounting plate 291; a horizontal adjustment slide plate 293, which is movably arranged on the horizontal adjustment slide rail 292, and the material blocking mounting plate 21 is arranged on the horizontal adjustment slide plate 293; a horizontal adjustment driving member 294, which is arranged on the horizontal adjustment mounting plate 291 and is used to drive the horizontal adjustment slide plate 293 to move. Optionally, the horizontal adjustment driving member 294 can be driven by a telescopic cylinder. Optionally, the horizontal adjustment driving member 294 of the present application adopts a handwheel in cooperation with a lead screw to drive the horizontal transverse movement adjustment of the horizontal adjustment slide plate 293.

[0080] More specifically, the self-cleaning material blocking mechanism applied to the spraying machine further includes a height adjustment component 210 for adjusting the height of the material blocking mounting plate 21. The height adjustment component 210 includes: a height adjustment mounting plate 2101, which is arranged on the mounting bracket 1; a height adjustment slide rail 2102, which is vertically arranged on the height adjustment mounting plate 2101, and the horizontal adjustment mounting plate 291 is movably arranged on the height adjustment slide rail 2102; a height adjustment driving member 2103, which is arranged on the height adjustment mounting plate 2101 and is used to drive the horizontal adjustment mounting plate 291 to move. Optionally, the height adjustment driving member 2103 can be driven by a telescopic cylinder.

[0081] In addition, the clamping mechanism 3 includes: a first clamping mounting plate 31, which is horizontally movably arranged on the mounting bracket 1; a second clamping mounting plate 32, and the two second clamping mounting plates 32 are relatively arranged on the first clamping mounting plate 31; a fixing fixture 33, which is arranged on the opposite side of the two second clamping mounting plates 32; a first clamping driving component 34, which is arranged on the mounting bracket 1 and is used to drive the first clamping mounting plate 31 to move horizontally; a second clamping driving component 35, which is arranged on the first clamping mounting plate 31 and is used to drive the two second clamping mounting plates 32 to move toward each other, so as to drive the two fixing fixtures 33 to clamp and fix the product to be sprayed; a rotation driving component 36, which is arranged on the second clamping mounting plate 32 and is used to drive the fixing fixture 33 to rotate. Specifically, the first clamping drive assembly 34 includes a clamping drive motor 341, a clamping drive belt 342 arranged at the rotation output end of the clamping drive motor 341, and the first clamping mounting plate 31 is connected to the clamping drive belt 342; optionally, the second clamping drive assembly 35 includes a clamping drive telescopic cylinder, and its telescopic end is connected to the second clamping mounting plate 32; optionally, the rotation drive assembly 36 includes a rotation drive motor 361, a rotating wheel 362 transmission-connected to the rotation output end of the rotation drive motor 361, and a transmission belt 363 for transmission-connecting the rotation output end of the rotation drive motor 361 and the rotating wheel 362, and the rotating wheel 362 is connected to the fixed clamp 33 to drive the product clamped by the fixed clamp 33 to rotate, so that the spraying is more comprehensive.

[0082] Furthermore, the automatic spraying machine further includes a feeding mechanism 5, which includes: a feeding plate 51, on which a feeding trough 511 for placing the product to be sprayed is provided; a feeding lifting and lateral movement assembly 52, which is provided on the mounting bracket 1 and is used to drive the feeding plate 51 to lift and lateral movement, so that the product to be sprayed on the feeding trough 511 is opposite to the fixing fixture 33. The feeding lifting and lateral movement assembly 52 adopts a telescopic cylinder arranged horizontally and a telescopic cylinder arranged vertically to perform telescopic pushing to realize lateral movement and lifting. During loading, the product to be sprayed is placed on the discharge trough 511, and the first clamping drive component 34 drives the first clamping mounting plate 31 to move horizontally to be opposite to the discharge plate 51, and then the loading lifting and transverse movement component 52 drives the discharge plate 51 to lift and transversely move until the product to be sprayed on the discharge trough 511 is opposite to the fixed clamps 33 at both ends, and the second clamping drive component 35 drives the two second clamping mounting plates 32 to move toward each other, so as to drive the two fixed clamps 33 to clamp and fix the product to be sprayed to complete the material removal, and finally the first clamping drive component 34 drives the first clamping mounting plate 31 to move horizontally back to the spraying station for spraying processing, thereby realizing automatic loading and higher production efficiency.

[0083] More specifically, the spraying mechanism 4 includes: a spraying mounting plate 41, which is arranged on the mounting bracket 1; a spraying slide rail 42, which is horizontally arranged on the spraying mounting plate 41; a spraying slider 43, which is movably arranged on the spraying slide rail 42; a spraying driving member 44, which is arranged on the spraying mounting plate 41 for driving the spraying slider 43 to move; a spraying mounting rod 45, which is horizontally arranged on the spraying slider 43 and perpendicular to the moving direction of the spraying slider 43; and a spraying gun 46, and a plurality of the spraying guns 46 are arranged on the spraying mounting rod 45 along the length direction of the spraying mounting rod 45. The spraying driving member 44 adopts a telescopic cylinder. It realizes automatic spraying, has high efficiency and comprehensive spraying.

[0084] As described above is an implementation manner provided in combination with specific contents, and it is not determined that the specific implementation of the present invention is only limited to these descriptions. At the same time, due to different industry names, it is not limited to the above names, nor to the English names. Any method, structure, etc. that is similar or identical to the present invention, or any technical deduction or replacement made under the premise of the inventive concept of the present invention, should be regarded as the protection scope of the present invention.

Claims

1. An automatic spraying machine, characterized in that: include: Mounting bracket (1); A material clamping mechanism (3), which is arranged on the mounting bracket (1) and is used to clamp and fix the product to be sprayed; A spraying mechanism (4), which is arranged on the mounting bracket (1) and is used to spray the product to be sprayed which is clamped and fixed on the material clamping mechanism (3); A self-cleaning material blocking mechanism (2) is arranged on the mounting bracket (1), and the self-cleaning material blocking mechanism (2) comprises: Material blocking mounting plates (21), wherein two material blocking mounting plates (21) are arranged on the mounting bracket (1) opposite to each other; A material blocking belt (22) is cyclically movable and wound around the material blocking mounting plate (21) for blocking the paint; A cleaning brush (23) is rotatably mounted on the material blocking mounting plate (21) and is in contact with the inner surface of the material blocking belt (22) for shielding the paint; A first cleaning drive assembly (24), which is arranged on the material blocking mounting plate (21) and is used to drive the material blocking belt (22) to move cyclically; The second cleaning drive assembly (25) is arranged on the material blocking mounting plate (21) and is used for driving the cleaning brush (23) to rotate.

2. The automatic spraying machine according to claim 1, characterized in that: The self-cleaning material blocking mechanism (2) further comprises an auxiliary cleaning component (26), wherein the auxiliary cleaning component (26) comprises: An auxiliary cleaning mounting member (261) is arranged on the material blocking mounting plate (21); An auxiliary cleaning movable part (262) movably disposed on the auxiliary cleaning mounting part (261); An auxiliary cleaning roller brush (263) is rotatably disposed on the auxiliary cleaning movable member (262) and is opposite to a portion of the material blocking belt (22); The elastic element (264) is arranged between the auxiliary cleaning movable part (262) and the auxiliary cleaning mounting part (261) and is used to keep the auxiliary cleaning movable part (262) and the auxiliary cleaning roller brush (263) moving in a direction close to the material blocking belt (22).

3. The automatic spraying machine according to claim 1, characterized in that: The mounting bracket (1) is also provided with a cleaning assembly (27), and the cleaning assembly (27) comprises: Cleaning box (271); A cleaning lifting platform (272) whose lifting movement is arranged on the mounting bracket (1), and the cleaning box (271) is placed on the cleaning lifting platform (272); A cleaning lifting drive (273) is arranged between the cleaning lifting platform (272) and the mounting bracket (1) and is used to drive the cleaning lifting platform (272) to move upward and downward. The cleaning lifting drive (273) can drive the cleaning box (271) to move until a part of the cleaning brush (23) and the material blocking belt (22) are located in the cleaning box (271).

4. The automatic spraying machine according to claim 1, characterized in that: The first cleaning drive assembly (24) comprises: A belt conveying driving wheel (241) is rotatably mounted on the material blocking mounting plate (21); A belt conveyor driving motor (242) is arranged on the material blocking mounting plate (21) and is used to drive the belt conveyor driving wheel (241) to rotate; The belt conveyor driven wheel (243) is rotatably arranged on the material blocking mounting plate (21); the material blocking belt (22) is cyclically movable and wound around the belt conveyor driving wheel (241) and the belt conveyor driven wheel (243); the cleaning brush (23) is in contact with the inner surface of the belt conveyor driven wheel (243) and the material blocking belt (22) for shielding the paint.

5. The automatic spraying machine according to claim 1, characterized in that: The material blocking mounting plate (21) is provided with a belt entrainment assembly (28), and the belt entrainment assembly (28) comprises: A clamping belt mounting member (281) is arranged on the material blocking mounting plate (21); An entrainment cylinder (282) disposed on the entrainment mounting member (281); The two clamping plates (283) are arranged opposite to each other at the clamping output end of the clamping cylinder (282) and are respectively located at two sides of the blocking belt (22).

6. The automatic spraying machine according to claim 1, characterized in that: The self-cleaning material blocking mechanism (2) further comprises a horizontal adjustment component (29) for adjusting the distance between the two material blocking mounting plates (21), wherein the horizontal adjustment component (29) comprises: A horizontal adjustment mounting plate (291) disposed on the mounting bracket (1); A horizontal adjustment slide rail (292) is horizontally arranged on the horizontal adjustment mounting plate (291); A horizontal adjustment slide plate (293) is movably arranged on the horizontal adjustment slide rail (292), and the material blocking mounting plate (21) is arranged on the horizontal adjustment slide plate (293); A horizontal adjustment driving member (294) is arranged on the horizontal adjustment mounting plate (291) and is used for driving the horizontal adjustment slide plate (293) to move.

7. The automatic spraying machine according to claim 6, characterized in that: The self-cleaning material blocking mechanism (2) further comprises a height adjustment component (210) for adjusting the height of the material blocking mounting plate (21), wherein the height adjustment component (210) comprises: A height adjustment mounting plate (2101) disposed on the mounting bracket (1); A height adjustment slide rail (2102) is vertically arranged on the height adjustment mounting plate (2101), and the horizontal adjustment mounting plate (291) is movably arranged on the height adjustment slide rail (2102); A height adjustment driving member (2103) is arranged on the height adjustment mounting plate (2101) and is used to drive the horizontal adjustment mounting plate (291) to move.

8. The automatic spraying machine according to claim 1, characterized in that: The material clamping mechanism (3) comprises: A first material clamping mounting plate (31) is horizontally movably mounted on the mounting bracket (1); A second material clamping installation plate (32), wherein the two second material clamping installation plates (32) are arranged on the first material clamping installation plate (31) in a relative manner; A fixing fixture (33) is arranged on one side opposite to the two second material clamping mounting plates (32); A first material clamping driving assembly (34), which is arranged on the mounting bracket (1) and is used to drive the first material clamping mounting plate (31) to move horizontally; A second material clamping drive assembly (35) is arranged on the first material clamping mounting plate (31) and is used to drive the two second material clamping mounting plates (32) to move towards each other so as to drive the two fixing fixtures (33) to clamp and fix the product to be sprayed; The rotation driving assembly (36) is arranged on the second material clamping mounting plate (32) and is used to drive the fixing fixture (33) to rotate.

9. The automatic spraying machine according to claim 8, characterized in that: The invention also comprises a feeding mechanism (5), wherein the feeding mechanism (5) comprises: A material discharge plate (51) is provided with a material discharge trough (511) for placing the product to be sprayed; The material loading lifting and transverse movement assembly (52) is arranged on the mounting bracket (1) and is used to drive the material discharge plate (51) to lift and transversely move so that the product to be sprayed on the material discharge trough (511) is opposite to the fixing fixture (33).

10. The automatic spraying machine according to claim 1, characterized in that: The spraying mechanism (4) comprises: A spraying mounting plate (41) is arranged on the mounting bracket (1); A spraying slide rail (42) is horizontally arranged on the spraying mounting plate (41); A spraying slide block (43) movably disposed on the spraying slide rail (42); A spraying driving member (44), which is arranged on the spraying mounting plate (41) and is used to drive the spraying slider (43) to move; A spraying installation rod (45) is horizontally arranged on the spraying slide block (43) and is perpendicular to the moving direction of the spraying slide block (43); A spray gun (46), wherein a plurality of the spray guns (46) are arranged on the spray installation rod (45) along the length direction of the spray installation rod (45).

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