A coating machine for printing iron cans

Abstract

This utility model relates to the technical field of iron pipe production and processing, and discloses a coating machine for printing tin cans, including a support box assembly. A conveying assembly is installed on one side of the support box assembly, and a pushing assembly is fixedly installed at the bottom end of the conveying assembly. A spraying assembly, a spreading assembly, and a drying assembly are respectively arranged at the top end of the pushing assembly. The spraying assembly, spreading assembly, and drying assembly are all fixedly installed on the top of the support box assembly. This utility model, by installing a drying assembly on the device, allows for immediate drying after coating is applied, thus preventing coating peeling due to insufficient solidification after spreading.

Description

Technical Field

[0001] This utility model relates to the technical field of iron pipe production and processing, specifically to a coating machine for printing iron cans. Background Technology

[0002] The background technology of coating machines for printed tin cans mainly stems from the need for surface decoration and protection of metal packaging containers. Traditional processes, using manual spraying or roller coating, suffer from problems such as uneven coating, low efficiency, and solvent evaporation pollution. With the development of tin printing technology, automated coating equipment emerged in the mid-20th century. This equipment uses conveyor belts to transport tin sheets and combines precision metering pumps with spraying / roller coating systems to achieve continuous operation. Early models, limited by mechanical precision and control systems, still exhibited defects such as film thickness fluctuations (above ±2μm) and pattern registration deviations (0.1-0.3mm). After 2000, the application of servo drive technology and UV curing processes significantly improved coating accuracy (up to ±0.5μm) and drying efficiency (3-5 seconds curing). However, technical bottlenecks remain when printing on curved surfaces of irregularly shaped cans (such as conical and necked cans), including edge paint buildup and dot loss. Current technological trends focus on the integrated application of high-precision electrostatic spraying (atomized particles ≤20μm), nano-coating self-leveling technology, and machine vision-based online inspection systems (detection accuracy 0.01mm). Application number CN201921216379.4 discloses a coating machine for printing on tin cans, including a coating machine body and a support frame set at the bottom of the coating machine body. A clamping mechanism is installed inside the support frame. The clamping mechanism is rotatably mounted on turntables on both sides. The turntable on one side of the clamping mechanism is rotatably mounted to the corresponding support frame via a bearing component. A piston push rod is connected to the turntable on the other side of the clamping mechanism, away from the clamping mechanism. The clamping mechanism is used to clamp the tin can. This invention solves the problem of the limited use of clamping mechanisms for clamping tin cans on coating machines. Through the clamping between the upper and lower clamping blocks, the position of the tin can built into the clamping blocks can be fixed, expanding the application range of the coating machine and enhancing its practicality. However, a shortcoming exists: the device cannot perform drying immediately after coating is completed, which may cause material to fall off the outside of the tin can after a certain period of time. Utility Model Content

[0003] The purpose of this invention is to provide a coating machine for printing tin cans, which solves the problem that when the device is in use, it cannot perform the drying process immediately after the coating is completed, which causes the material on the outside of the tin can to fall off after a certain period of time.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model is a coating machine for printing tin cans, including a support box assembly. A conveying assembly is installed on one side of the support box assembly. A pushing assembly is fixedly installed at the bottom end of the conveying assembly. A spraying assembly, a spreading assembly, and a drying assembly are respectively arranged at the top end of the pushing assembly. The spraying assembly, the spreading assembly, and the drying assembly are all fixedly installed on the top of the support box assembly.

[0006] The drying assembly includes a pneumatic push rod 2, which is fixedly installed on the top of the bracket 3 by a fixing member. A movable mounting plate 2 is fixedly installed at the end of the pneumatic push rod 2. The movable mounting plate 2 is slidably installed on the slide rail on the top outer wall of the bracket 3. A pneumatic pump 3 is fixedly installed on the top of the movable mounting plate 2. A lifting slide plate 3 is fixedly installed at the bottom of the pneumatic pump 3. The lifting slide plate 3 is slidably installed on the slide rail on the outer wall of the movable mounting plate 2.

[0007] Furthermore, the support box assembly includes a support box and a limiting bracket. A fixed support frame is fixedly installed diagonally at the bottom of the support box, and a bracket one is fixedly installed on one side of the top of the support box. Meanwhile, a bracket two is fixedly installed in the middle of the top of the support box, and a bracket three is fixedly installed on the top of the support box. The limiting bracket is fixedly installed in the middle of the top of the support box.

[0008] Furthermore, the limiting bracket is positioned at the bottom of the frames of bracket one, bracket two, and bracket three, and is centered thereon.

[0009] Furthermore, the conveying assembly includes a movable support, a transmission device is fixedly installed on one side of the top of the movable support, a conveyor belt is driven and installed on the inner side of the transmission device, and limit clamps are fixedly installed on the top of the two side plates of the conveyor belt.

[0010] Furthermore, the pushing component includes a pneumatic telescopic pump, which is fixedly installed at the bottom of the side plates on both sides of the conveyor belt via a bracket. A push rod is installed at the end of the pneumatic telescopic pump, and the end of the push rod is fixed to the outer wall of the support column. A movable slide plate is fixedly installed at the bottom of the support column, and a tray is fixedly installed at the top of the support column. An iron can is provided at the top of the tray. The movable slide plate is slidably installed on the top of the limiting slide rail, and the limiting slide rail is fixedly installed on the top of the support box.

[0011] Furthermore, the spraying assembly includes a mounting clip, which is fixedly mounted on the top outer wall of a bracket. An air pump is fixedly mounted on the top of the mounting clip, and a lifting slide plate is connected to the bottom of the air pump. The lifting slide plate is limited and mounted on a slide rail on the same side of the mounting clip. A rotary motor is fixedly mounted on the outer side of the outer wall of the lifting slide plate, and a sprayer is fixedly mounted on the bottom of the rotary motor. A metal can is correspondingly provided on the bottom of the sprayer.

[0012] Furthermore, the spreading assembly includes a pneumatic push rod 1, which is mounted on the top of the bracket 2 via a fixing member. A movable mounting plate 1 is fixedly mounted at the end of the pneumatic push rod 1. The movable mounting plate 1 is slidably mounted on a slide rail on the outer wall of the top of the bracket 2. An air pump 2 is fixedly mounted at the outer end of the movable mounting plate 1. A lifting slide plate 2 is fixedly mounted at the bottom of the air pump 2. The lifting slide plate 2 is slidably mounted on the slide rail on the outer wall of the movable mounting plate 1. An applicator roller shaft is fixedly mounted on the outer side of the lifting slide plate 2 via a rotating mechanism.

[0013] Furthermore, a solid-state light is fixedly installed on the outer side of the lifting slide plate three.

[0014] This utility model has the following beneficial effects:

[0015] (1) The present invention provides a coating machine for printing tin cans. By installing a drying component on the device, the coating can be dried immediately after the coating is applied. This avoids the situation where the coating falls off because it is not solidified in time after being evenly coated.

[0016] (2) The present invention provides a coating machine for printing iron cans. By installing a smoothing component on the device, the coating on the surface of the iron pipe can be achieved by the smoothing component after the spraying work, so as to form a uniform working effect.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a coating machine for printing tin cans according to the present invention;

[0020] Figure 2 This is a schematic diagram of the conveying assembly structure of a coating machine for printing tin cans according to this utility model;

[0021] Figure 3 This is a schematic diagram of the pushing component and spraying component of a coating machine for printing tin cans according to the present invention;

[0022] Figure 4This is a schematic diagram of the coating spreading component of a printing can printing machine according to the present invention;

[0023] Figure 5 This is a schematic diagram of the drying component structure of a coating machine for printing tin cans according to this utility model;

[0024] The attached diagram lists the components represented by each number as follows:

[0025] In the diagram: 1. Support box assembly; 2. Conveying assembly; 3. Pushing assembly; 4. Spraying assembly; 5. Spreading assembly; 6. Drying assembly; 101. Support box; 102. Fixed support frame; 103. Support 1; 104. Support 2; 105. Support 3; 106. Limiting support; 201. Moving support; 202. Transmission device; 203. Conveyor belt; 204. Limiting clamp; 301. Pneumatic telescopic pump; 302. Push rod; 303. Support column; 304. 305. Movable sliding plate; 306. Limiting slide rail; 407. Iron can; 408. Mounting bracket; 409. Air pump one; 4000. Lifting sliding plate one; 401. Rotary motor; 402. Sprayer; 501. Pneumatic push rod one; 502. Movable mounting plate one; 503. Air pump two; 504. Lifting sliding plate two; 505. Application roller shaft; 601. Pneumatic push rod two; 602. Movable mounting plate two; 603. Pneumatic pump three; 604. Lifting sliding plate three; 605. Solid state light. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 As shown, this utility model is a coating machine for printing tin cans, including a support box assembly 1, a conveying assembly 2 is installed on one side of the support box assembly 1, a pushing assembly 3 is fixedly installed at the bottom end of the conveying assembly 2, and a spraying assembly 4, a spreading assembly 5 and a drying assembly 6 are respectively arranged at the top end of the pushing assembly 3. The spraying assembly 4, the spreading assembly 5 and the drying assembly 6 are all fixedly installed on the top of the support box assembly 1.

[0028] The drying assembly 6 includes a pneumatic push rod 601, which is fixedly installed on the top of the bracket 105 by a fastener. A movable mounting plate 602 is fixedly installed at the end of the pneumatic push rod 601. The movable mounting plate 602 is slidably installed on the slide rail on the top outer wall of the bracket 105. A pneumatic pump 603 is fixedly installed on the top of the movable mounting plate 602. A lifting slide plate 604 is fixedly installed at the bottom of the pneumatic pump 603. The lifting slide plate 604 is slidably installed on the slide rail on the outer wall of the movable mounting plate 602.

[0029] By installing the drying component 6 on the device, the coating can be dried immediately after application, thus preventing the coating from peeling off due to failure to solidify and set in time after even application.

[0030] The support box assembly 1 includes a support box 101 and a limiting bracket 106. A fixed support frame 102 is fixedly installed diagonally at the bottom of the support box 101, and a bracket 103 is fixedly installed on one side of the top of the support box 101. Meanwhile, a bracket 2 104 is fixedly installed in the middle of the top of the support box 101, and a bracket 3 105 is fixedly installed on the top of the support box 101. The limiting bracket 106 is fixedly installed in the middle of the top of the support box 101.

[0031] The limiting bracket 106 is positioned at the bottom of the frames of bracket 103, bracket 2 104 and bracket 3 105, and is centered.

[0032] The conveying assembly 2 includes a movable support 201. A transmission device 202 is fixedly installed on one side of the top of the movable support 201. A conveyor belt 203 is driven and installed on the inner side of the transmission device 202. Limiting clamps 204 are fixedly installed on the top of the side plates of the conveyor belt 203. When the iron can is placed on the conveyor belt 203, the transmission device 202 drives the conveyor belt 203 to rotate. The limiting clamps 204 on both sides limit the iron can, so that the iron can is smoothly transported along the conveyor belt 203 to the bottom end. When the iron can is transported to the bottom end of the conveyor belt 203...

[0033] The pushing component 3 includes a pneumatic telescopic pump 301, which is fixedly installed on the bottom of the side plates on both sides of the conveyor belt 203 via a bracket. A push rod 302 is installed at the end of the pneumatic telescopic pump 301, and the end of the push rod 302 is fixed to the outer wall of the support column 303. A movable slide plate 304 is fixedly installed at the bottom of the support column 303, and a tray is fixedly installed at the top of the support column 303. A metal can 306 is limited at the top of the tray. The movable slide plate 304 is slidably installed on the top of the limiting slide rail 305, which is fixedly installed on the top of the support box 101. When the pneumatic telescopic pump 301 is started, it pushes the support column 303 through the push rod 302. The movable slide plate 304 at the bottom of the support column 303 slides on the limiting slide rail 305, pushing the metal can 306 on the tray at the top of the support column 303 to the corresponding position below the spraying component 4.

[0034] The spraying assembly 4 includes a mounting clip 401, which is fixedly mounted on the top outer wall of the bracket 103. An air pump 402 is fixedly mounted on the top of the mounting clip 401, and a lifting slide plate 403 is connected to the bottom of the air pump 402. The lifting slide plate 403 is limited and mounted on the slide rail on the same side of the mounting clip 401. A rotary motor 404 is fixedly mounted on the outer side of the outer wall of the lifting slide plate 403. A sprayer 405 is fixedly mounted on the bottom of the rotary motor 404. A metal can 306 is correspondingly set at the bottom of the sprayer 405. When the air pump 402 mounted on the mounting clip 401 on the top outer wall of the bracket 103 operates, it drives the lifting slide plate 403 to descend on the slide rail of the mounting clip 401. At the same time, the rotary motor 404 starts, driving the sprayer 405 to rotate and spray paint onto the surface of the positioned metal can 306.

[0035] The smoothing assembly 5 includes a pneumatic push rod 501, which is mounted on the top of the bracket 104 via a fastener. A movable mounting plate 502 is fixedly mounted at the end of the pneumatic push rod 501. The movable mounting plate 502 is slidably mounted on a slide rail on the outer top wall of the bracket 104. An air pump 503 is fixedly mounted at the outer end of the movable mounting plate 502. A lifting slide plate 504 is fixedly mounted at the bottom of the air pump 503 and slidably mounted on the movable mounting plate 504. The outer wall slide rail of 502, and the outer side of the lifting slide plate 2 504 is fixedly installed with the coating roller shaft 505 by the rotating mechanism. The pneumatic push rod 1 501 at the top of the bracket 2 104 pushes the movable mounting plate 1 502 to move on the top slide rail of the bracket 2 104, so that the air pump 2 503 drives the lifting slide plate 2 504 and the coating roller shaft 505 to move to a suitable position above the iron can 306. The air pump 2 503 controls the lifting slide plate 2 504 to descend, and the coating roller shaft 505 performs a smoothing operation on the coating sprayed on the surface of the iron can.

[0036] A solid-state light 605 is fixedly installed on the outside of the lifting slide plate 3604. The pneumatic push rod 2601 on the top of the bracket 3105 pushes the movable mounting plate 2602 to slide on the top slide rail of the bracket 3105. The pneumatic pump 3603 drives the lifting slide plate 3604 to descend, so that the solid-state light 605 on the outside of the lifting slide plate 3604 is close to the iron can 306. The light emitted by the solid-state light 605 dries the coating on the surface of the iron can.

[0037] The coating machine for printing tin cans provides stable support for the whole through the support box assembly 1, and realizes the transmission and positioning of tin cans through the conveying assembly 2 and the pushing assembly 3. The spraying assembly 4, the spreading assembly 5 and the drying assembly 6 complete the spraying, spreading and drying operations of the coating on the surface of the tin can. Each component works in coordination with mechanical structures and pneumatic and electric devices to achieve an automated coating process. During operation, the tin can is first placed on the conveyor belt 203. The transmission device 202 drives the conveyor belt 203, and the limiting clamps 204 on both sides limit the tin can, ensuring its smooth transport along the conveyor belt 203 to the bottom. When the tin can reaches the bottom of the conveyor belt 203, the pneumatic telescopic pump 301 starts, pushing the support column 303 via the push rod 302. The movable slide plate 304 at the bottom of the support column 303 slides on the limiting slide rail 305, pushing the tin can 306 on the top support plate of the support column 303 to the corresponding position below the spraying assembly 4. The air pump 402, mounted on the mounting clamp 401 on the top outer wall of the bracket 103, operates, causing the lifting slide plate 403 to descend on the slide rail of the mounting clamp 401. Simultaneously, the rotary motor 404 starts. The spraying machine 405 rotates to spray paint onto the positioned surface of the tin can 306. After spraying, the pneumatic push rod 501 on the top of the second bracket 104 pushes the movable mounting plate 502 to move on the top slide rail of the second bracket 104. This causes the air pump 503 to move the lifting slide plate 504 and the coating roller 505 to a suitable position above the tin can 306. The air pump 503 controls the lifting slide plate 504 to descend, and the coating roller 505 spreads the paint evenly on the surface of the tin can. After the spreading process is completed, the pneumatic push rod 601 on the top of the third bracket 105 pushes the movable mounting plate 602 to slide on the top slide rail of the third bracket 105. The pneumatic pump 603 drives the lifting slide plate 604 to descend, bringing the solid-state lamp 605 on the outside of the lifting slide plate 604 closer to the tin can 306. The light emitted by the solid-state lamp 605 dries the paint on the surface of the tin can. After drying, the above process can be repeated for the next tin can.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A coating machine for printing iron cans, comprising a support box assembly (1), characterized in that: A conveying component (2) is installed on one side of the support box assembly (1). A pushing component (3) is fixedly installed at the bottom end of the conveying component (2). A spraying component (4), a spreading component (5), and a drying component (6) are provided at the top end of the pushing component (3). The spraying component (4), the spreading component (5), and the drying component (6) are all fixedly installed on the top of the support box assembly (1). The drying assembly (6) includes a pneumatic push rod two (601), which is fixedly installed on the top of the bracket three (105) by a fastener, and a movable mounting plate two (602) is fixedly installed at the end of the pneumatic push rod two (601). The movable mounting plate two (602) is slidably installed on the slide rail on the top outer wall of the bracket three (105), and a pneumatic pump three (603) is fixedly installed on the top of the movable mounting plate two (602). A lifting slide plate three (604) is fixedly installed at the bottom of the pneumatic pump three (603), and the lifting slide plate three (604) is slidably installed on the slide rail on the outer wall of the movable mounting plate two (602).

2. A coating machine for printing iron cans according to claim 1, characterized in that: The support box assembly (1) includes a support box (101) and a limiting bracket (106). A fixed support frame (102) is fixedly installed diagonally at the bottom of the support box (101), and a bracket one (103) is fixedly installed on one side of the top of the support box (101). Meanwhile, a bracket two (104) is fixedly installed in the middle of the top of the support box (101), and a bracket three (105) is fixedly installed on the top of the support box (101). The limiting bracket (106) is fixedly installed in the middle of the top of the support box (101).

3. A can decorator according to claim 2, wherein: The limiting bracket (106) is positioned at the bottom of the frame of bracket one (103), bracket two (104) and bracket three (105), and is centered.

4. A coating machine for printing iron cans according to claim 1, characterized in that: The conveying assembly (2) includes a movable support (201), a transmission device (202) is fixedly installed on one side of the top of the movable support (201), a conveyor belt (203) is driven on the inner side of the transmission device (202), and limit clamps (204) are fixedly installed on the top of the two side plates of the conveyor belt (203).

5. A coating machine for printing cans as claimed in claim 1, wherein: The pushing component (3) includes a pneumatic telescopic pump (301), which is fixedly installed on the bottom of the side plates on both sides of the conveyor belt (203) by a bracket, and a push rod (302) is installed at the end of the pneumatic telescopic pump (301). The end of the push rod (302) is fixed to the outer wall of the support column (303). A movable slide plate (304) is fixedly installed at the bottom of the support column (303), and a tray is fixedly installed at the top of the support column (303). An iron can (306) is limited at the top of the tray. The movable slide plate (304) is slidably installed on the top of the limiting slide rail (305), and the limiting slide rail (305) is fixedly installed on the top of the support box (101).

6. A coating machine for printing iron cans according to claim 1, characterized in that: The spraying assembly (4) includes a mounting clip (401), which is fixedly mounted on the top outer wall of the bracket (103). An air pump (402) is fixedly mounted on the top of the mounting clip (401). A lifting slide plate (403) is connected to the bottom of the air pump (402). The lifting slide plate (403) is limited and mounted on the slide rail on the same side of the mounting clip (401). A rotary motor (404) is fixedly mounted on the outer side of the outer wall of the lifting slide plate (403). A sprayer (405) is fixedly mounted on the bottom of the rotary motor (404). A metal can (306) is correspondingly provided on the bottom of the sprayer (405).

7. A coating machine for printing tin cans according to claim 1, characterized in that: The spreading component (5) includes a pneumatic push rod (501), which is mounted on the top of the support (104) by a fixing member. A movable mounting plate (502) is fixedly mounted at the end of the pneumatic push rod (501). The movable mounting plate (502) is slidably mounted on the slide rail on the top outer wall of the support (104). An air pump (503) is fixedly mounted on the outer end of the movable mounting plate (502). A lifting slide plate (504) is fixedly mounted on the bottom of the air pump (503). The lifting slide plate (504) is slidably mounted on the slide rail on the outer wall of the movable mounting plate (502). An applicator roller (505) is fixedly mounted on the outer side of the lifting slide plate (504) by a rotating mechanism.

8. A coating machine for printing cans according to claim 1, characterized in that: A solid-state light (605) is fixedly installed on the outside of the lifting slide plate three (604).

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