Anti-corrosion coating device for packaging carton

Abstract

The utility model relates to a packaging carton anti-corrosion coating device which comprises two fixing plates, a conveying belt arranged between the two fixing plates, a concave plate body installed at the tops of the fixing plates, a telescopic cylinder body installed at the top end of the inner wall of the concave plate body, a piston rod connected to the bottom of the telescopic cylinder body, and a bending limiting assembly arranged at the bottom of the piston rod. The top of the concave plate body is provided with a coating box body, the two sides of the bottom of the coating box body are both communicated with coating pumps, the bottoms of the coating pumps penetrate through the concave plate body to be communicated with coating pipes, the bottoms of the coating pipes are of a sealed structure, and the inner side faces of the coating pipes are communicated with a plurality of spray heads. Packaging cartons of different sizes can be limited, and conveying and rotating stability is guaranteed; the carton is driven to rotate after being limited, the surfaces of the open carton and the unfolded cover plate can be comprehensively and uniformly sprayed by matching with multiple sprayers, the coverage range is expanded, and the spraying quality and effect are improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging cartons, specifically to an anti-corrosion coating device for packaging cartons. Background Technology

[0002] Cardboard boxes are containers made from paper as the basic raw material and other materials. They serve a storage function and are very common in today's society. Cardboard boxes are lightweight, durable, and recyclable. During the cardboard box coating process, a spraying device is used to cover the corresponding areas on the surface of the cardboard box with anti-corrosion coating.

[0003] According to the published patent 202121719002.8, a cardboard box spraying device includes a box body with an opening on the front side. A switch door matching the opening is located on the front side of the box body. Several hinges are located on the left side of the switch door, which is movably connected to the box body via these hinges. A handle is fixedly connected to the front side of the switch door near the right side. Through the cooperation of components such as a servo motor, support plate, crossbar, spray box, hose, nozzle, valve, threaded rod, and threaded sleeve, the nozzle is moved back and forth, resulting in more uniform spraying of the cardboard box and improved product quality. A clamping mechanism, with the cooperation of components such as a spring, moving rod, push plate, first grooved wheel, second grooved wheel, and belt, clamps and rotates the cardboard box for spraying, avoiding manual turning and improving work efficiency.

[0004] In current commercially available traditional anti-corrosion coating equipment for cardboard boxes typically uses spring force to drive a clamping block from the outside of the cardboard box, causing it to rotate. However, this clamping method, because the clamping block acts directly on the outside of the cardboard box, inevitably obstructs a portion of the outer surface. This obstruction directly interferes with the uniform spraying of the cardboard box surface, affecting the coating effect. When using a spring to drive the clamping block from the inside of the cardboard box, the spring's elasticity causes the clamping block to move to its maximum stroke position. When this movement exceeds the size of the top opening of the cardboard box, it cannot enter the box, making stable clamping and fixation difficult. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide a packaging carton anti-corrosion coating device. This addresses the problem that commonly used traditional packaging carton anti-corrosion coating equipment on the market typically uses spring elasticity to drive a clamping block from the outside of the carton and rotate it during the limiting and clamping operation. However, this clamping and limiting method inevitably obstructs part of the carton's exterior area because the clamping block acts directly on the outside of the carton. This obstruction directly interferes with the uniform spraying operation on the surface of the carton, affecting the spraying effect. When a spring is used to drive the clamping block from the inside of the carton, the spring's elasticity causes the clamping block to move to its maximum stroke position. When the movement range of the clamping block exceeds the size of the top opening of the carton, it cannot enter the carton, making it difficult to achieve stable clamping and fixing.

[0006] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a packaging carton anti-corrosion coating device is designed, including two fixed plates, a conveyor belt is arranged between the two fixed plates, a concave plate is installed on the top of the fixed plates, a telescopic cylinder is installed on the top of the inner wall of the concave plate, a piston rod is connected to the bottom of the telescopic cylinder, a bending limiting component is provided at the bottom of the piston rod, a paint tank is installed on the top of the concave plate, paint pumps are connected to both sides of the bottom of the paint tank, and a paint pipe is connected to the bottom of the paint pump through the concave plate. The bottom of the paint pipe is a sealed structure, and multiple nozzles are connected to its inner side.

[0007] Preferably, the bending limiting assembly includes a circular groove, a first motor, a connecting rod, a fixed cylinder, a movable plate, a spring, a first limiting rod, a housing, an opening, a fixed rod, a torsion spring, a connecting block, and a second limiting rod.

[0008] Preferably, the circular groove is formed at the bottom of the piston rod, and a first motor is installed inside the circular groove. The output shaft of the first motor is connected to a connecting rod.

[0009] Preferably, a fixing cylinder is installed on both sides of the connecting rod, and a first limiting rod passes through the end of the fixing cylinder away from the connecting rod. A movable plate is fixed to the end of the first limiting rod located inside the fixing cylinder, and a spring is fixed to one end of the movable plate.

[0010] Preferably, one end of the first limiting rod extending into the fixed cylinder is fixed to a housing, the surface of the housing is provided with an arc-shaped opening, the second limiting rod passes through the arc-shaped opening, one end of the second limiting rod located inside the housing is fixed to a connecting block, one end of the connecting block is fixed to the torsion end of a torsion spring, the torsion spring has a fixed rod passing through it, and the fixed rod is fixed inside the housing.

[0011] Preferably, grooves are provided on both sides of the inner wall of the concave plate, a second motor is installed at one end of the groove, the output shaft of the second motor is connected to the fan blade, heating tubes are installed at both the upper and lower ends of the groove, and a mesh is installed at the groove opening.

[0012] Preferably, the top and bottom sides of the paint tank are each connected to one end of a liquid pipe, and the other end of the liquid pipe is fitted with a pipe cap.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model combines a telescopic cylinder, a spring, and a limiting rod. During the process of limiting the packaging carton, the second limiting rod bends due to the elasticity of the torsion spring. Even if the second limiting rod exceeds the opening size of the top of the packaging carton, it can adaptively bend to limit packaging cars of different sizes and specifications, ensuring the stability of the carton during transportation and subsequent rotation. After the limiting operation is completed, the device can directly drive the open packaging carton to rotate. With the coordinated work of multiple nozzles, it can comprehensively and evenly spray the open packaging carton and the unfolded cover surface, effectively expanding the spray coverage area and improving the quality and effect of the spraying operation.

[0015] 2. This utility model, through the combination of a second motor, a blower fan blade, and an electric heating tube, not only uses the blower fan blade to blow the heat generated by the electric heating tube to the surface of the packaging carton, but also, as the packaging carton continues to rotate, the hot air can fully cover different positions on its surface, achieving an efficient and uniform drying effect. Furthermore, the blown hot air also acts on the coating tube, using the heat of the hot air to continuously heat the coating inside the coating tube, effectively preventing the coating from solidifying inside the coating tube in a low-temperature environment, thus ensuring the smooth discharge of the coating from the coating tube. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the bending limiting component of this utility model;

[0018] Figure 3 This is a top view of the internal structure of the shell of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the groove in this utility model.

[0020] In the diagram: 1. Concave plate; 101. Fixed plate; 102. Conveyor belt; 2. Paint tank; 201. Liquid pipe; 202. Telescopic cylinder; 203. Piston rod; 204. Paint pump; 205. Paint pipe; 206. Sprayer head; 207. Torsion spring; 208. Circular groove; 209. First motor; 210. Connecting rod; 211. Fixed cylinder; 212. Spring; 213. Moving plate; 214. First limiting rod; 215. Housing; 216. Second limiting rod; 217. Connecting block; 218. Fixed rod; 219. Arc-shaped opening; 3. Groove; 301. Partition net; 302. Fan blade; 303. Heating element; 304. Second motor. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Example 1: A corrosion-resistant coating device for packaging cartons, see [link to example]. Figures 1 to 4The system includes two fixed plates 101, with a conveyor belt 102 positioned between them. A concave plate 1 is mounted on the top of each fixed plate 101. A telescopic cylinder 202 is mounted on the top of the inner wall of the concave plate 1, and a piston rod 203 is connected to the bottom of the telescopic cylinder 202. A bending limit component is located at the bottom of the piston rod 203. A paint tank 2 is mounted on the top of the concave plate 1, and paint pumps 204 are connected to both sides of the bottom of the paint tank 2. The bottom of the paint pumps 204 passes through the concave plate 1 and is connected to a paint pipe 205. The bottom of the paint pipe 205 is sealed, and multiple nozzles 206 are connected to its inner side. First, a packaging carton is placed on the surface of the conveyor belt 102, and the conveyor belt 102 moves the packaging carton to the concave plate 1. Inside the inner area, once the packaging carton moves to the designated position inside the concave plate 1, the conveyor belt 102 immediately stops operating. Then, the telescopic cylinder 202 is activated, causing the piston rod 203 to move downwards. The movement of the piston rod 203 further drives the connecting rod 210 and the connected first limiting rod 214 downwards. As the first limiting rod 214 moves downwards, it simultaneously drives the housing 215 and the second limiting rod 216 downwards. During the downward movement of the second limiting rod 216, its lower end gradually abuts against the edge of the top opening of the packaging carton. As the second limiting rod 216 continues to move downwards, a force is applied to rotate the torsion spring 207, causing a portion of the second limiting rod 216 to... The component moves along the arc-shaped opening 219 on the surface of the shell 215, bends, and smoothly enters the inner wall of the opening at the top of the packaging carton. Then, using the elastic force of the spring 212, the first limiting rod 214 and the second limiting rod 216 will move to a certain extent, so that the second limiting rod 216 can abut against the inner wall of the packaging carton, completing the limiting and fixing operation of the packaging carton. After the limiting is completed, the first motor 209 is started. The first motor 209 starts to run and drives the connecting rod 210 to rotate. The rotation of the connecting rod 210 will further drive the fixed cylinder 211, the first limiting rod 214, and the second limiting rod 216 to rotate together, thereby driving the packaging carton to rotate. During the rotation of the packaging carton, multiple paint pumps are turned on simultaneously. 204. The paint pump 204 starts working, extracting the anti-corrosion paint from the paint tank 2 and delivering it to the paint pipe 205. The paint is evenly sprayed onto different positions on the rotating packaging carton and the unfolded carton lid surface through multiple nozzles 206 on the inner side of the paint pipe 205, effectively improving the uniformity of the spraying and avoiding uneven spraying caused by the clamping device. After the spraying is completed, the telescopic cylinder 202 drives the bent second limit rod 216 upward again, causing it to disengage from the packaging carton. After the second limit rod 216 disengages from the packaging carton, it will be reset by the torsion of the torsion spring 207, returning to its initial state. This solves the problem of traditional anti-corrosion coating equipment for packaging cartons commonly found on the market.When performing a limiting and clamping operation on a packaging carton, a spring 212 is typically used to drive a clamping block from the outside of the carton, causing it to rotate. However, this clamping and limiting method, because the clamping block acts directly on the outside of the carton, inevitably obstructs a portion of the carton's exterior. This obstruction directly interferes with the uniform spraying operation on the carton's surface, affecting the spraying effect. Furthermore, when the spring 212 is used to drive the clamping block from the inside of the carton, the spring 212's elastic force causes the clamping block to move to its maximum stroke position. When the movement range of the clamping block exceeds the size of the top opening of the carton, it cannot enter the carton, making it difficult to achieve stable clamping and fixation.

[0023] For details, see Figure 2 and Figure 3 The bending limiting assembly includes a circular groove 208, a first motor 209, a connecting rod 210, a fixed cylinder 211, a moving plate 213, a spring 212, a first limiting rod 214, a housing 215, an opening, a fixed rod 218, a torsion spring 207, a connecting block 217, and a second limiting rod 216.

[0024] Further, see Figure 2 A circular groove 208 is formed at the bottom of the piston rod 203. A first motor 209 is installed inside the circular groove 208. The output shaft of the first motor 209 is connected to a connecting rod 210.

[0025] It is worth noting that, see Figure 2 A fixing cylinder 211 is installed on both sides of the connecting rod 210. A first limiting rod 214 passes through the end of the fixing cylinder 211 away from the connecting rod 210. A movable plate 213 is fixed to one end of the first limiting rod 214 inside the fixing cylinder 211. A spring 212 is fixed to one end of the movable plate 213.

[0026] It is worth noting that, see Figure 3 The first limiting rod 214 extends out of the fixed cylinder 211 and is fixed to the housing 215. The surface of the housing 215 is provided with an arc-shaped opening 219. The second limiting rod 216 passes through the arc-shaped opening 219. The end of the second limiting rod 216 located inside the housing 215 is fixed to the connecting block 217. The torque end of the torsion spring 207 is fixed to one end of the connecting block 217. The torsion spring 207 has a fixed rod 218 passing through it. The fixed rod 218 is fixed inside the housing 215.

[0027] It is worth mentioning that, see Figure 4The concave plate 1 has grooves 3 on both sides of its inner wall. A second motor 304 is installed at one end of the groove 3. The output shaft of the second motor 304 is connected to the fan blade 302. Electric heating tubes 303 are installed at both the upper and lower ends of the groove 3. A mesh 301 is installed at the opening of the groove 3. After the spraying is completed, multiple second motors 304 can be turned on. The second motors 304 will drive the fan blade 302 to rotate. The fan blade 302 will blow the heat generated by the electric heating tube 303 to the surface of the packaging carton. As the packaging carton continues to rotate, the hot air can fully cover different parts of its surface, achieving an efficient and uniform drying effect. Moreover, the hot air blown out will also act on the paint tube 205, using the heat of the hot air to continuously heat the paint inside the paint tube 205, effectively preventing the paint from solidifying inside the paint tube 205 in a low-temperature environment, thus ensuring the smooth discharge of the paint tube 205.

[0028] It is worth emphasizing that, see Figure 1 The top and bottom sides of the paint tank 2 are connected to one end of a liquid pipe 201, and the other end of the liquid pipe 201 is fitted with a pipe cap.

[0029] When using a packaging carton anti-corrosion coating device, firstly, the packaging carton is placed on the surface of the conveyor belt 102. The conveyor belt 102's running power moves the packaging carton to the internal area of ​​the concave plate 1. Once the packaging carton reaches the designated position inside the concave plate 1, the conveyor belt 102 is immediately stopped. Then, the telescopic cylinder 202 is activated, causing the piston rod 203 to move downwards. The movement of the piston rod 203 further drives the connecting rod 210 and the connected first limiting rod 214 downwards. When the first limiting rod 214 moves downwards, it simultaneously drives the housing 215 and the second limiting rod 216 downwards. During the downward movement of the second limiting rod 216, its lower end will... As the second limiting rod 216 gradually moves downwards, it gradually presses against the edge of the top opening of the packaging carton. This downward movement applies a force that causes the torsion spring 207 to rotate, resulting in a portion of the second limiting rod 216 bending along the arc-shaped opening 219 on the surface of the housing 215 and smoothly entering the inner wall of the top opening of the packaging carton. Then, utilizing the elastic force of the spring 212, the first limiting rod 214 and the second limiting rod 216 move to a certain extent, allowing the second limiting rod 216 to press against the inner wall of the packaging carton, thus completing the limiting and fixing operation of the packaging carton. After the limiting is completed, the first motor 209 is started, and it begins to rotate, driving the connecting rod 210 to rotate. The rotation of the connecting rod 210 further drives... The fixed cylinder 211, the first limiting rod 214, and the second limiting rod 216 rotate together, thereby causing the packaging carton to rotate. During the rotation of the packaging carton, multiple paint pumps 204 are simultaneously activated. The paint pumps 204 start working, drawing out the anti-corrosion paint from the paint tank 2 and delivering it to the paint pipe 205. The paint is evenly sprayed onto different positions on the rotating packaging carton and the unfolded carton cover through multiple nozzles 206 on the inner side of the paint pipe 205, effectively improving the uniformity of the spraying and avoiding uneven spraying caused by the clamping device. After the spraying is completed, the telescopic cylinder 202 is used again to move the bent second limiting rod 216 upward, causing it to detach from the packaging carton. After detaching from the packaging carton, 216 will be reset by the torque of the torsion spring 207, returning to its initial state. After the coating is completed, multiple second motors 304 can be turned on, which will drive the fan blades 302 to rotate. The fan blades 302 will blow the heat generated by the heating element 303 onto the surface of the packaging carton. As the packaging carton continues to rotate, the hot air can fully cover different parts of its surface, achieving an efficient and uniform drying effect. Moreover, the hot air blown out will also act on the coating tube 205, using the heat of the hot air to continuously heat the coating inside the coating tube 205, effectively preventing the coating from solidifying inside the coating tube 205 in a low-temperature environment, thus ensuring the smooth discharge of the coating tube 205.

[0030] In addition, all components designed in this utility model are general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0031] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A packaging carton anti-corrosion coating device, comprising two fixed plates (101), wherein a conveyor belt (102) is disposed between the two fixed plates (101), characterized in that, A concave plate (1) is installed on the top of the fixed plate (101). A telescopic cylinder (202) is installed on the top of the inner wall of the concave plate (1). A piston rod (203) is connected to the bottom of the telescopic cylinder (202). A bending limiting component is provided at the bottom of the piston rod (203). A paint tank (2) is installed on the top of the concave plate (1). A paint pump (204) is connected to both sides of the bottom of the paint tank (2). The bottom of the paint pump (204) passes through the concave plate (1) and is connected to a paint pipe (205). The bottom of the paint pipe (205) is a sealed structure, and multiple nozzles (206) are connected to its inner side.

2. The anti-corrosion coating device for packaging cartons as described in claim 1, characterized in that, The bending limiting assembly includes a circular groove (208), a first motor (209), a connecting rod (210), a fixed cylinder (211), a moving plate (213), a spring (212), a first limiting rod (214), a housing (215), an arc-shaped opening (219), a fixed rod (218), a torsion spring (207), a connecting block (217), and a second limiting rod (216).

3. The anti-corrosion coating device for packaging cartons as described in claim 2, characterized in that, The circular groove (208) is opened at the bottom of the piston rod (203), and a first motor (209) is installed inside the circular groove (208). The output shaft of the first motor (209) is connected to a connecting rod (210).

4. The anti-corrosion coating device for packaging cartons as described in claim 2, characterized in that, Fixed cylinders (211) are installed on both sides of the connecting rod (210). A first limiting rod (214) passes through the end of the fixed cylinder (211) away from the connecting rod (210). A movable plate (213) is fixed to one end of the first limiting rod (214) inside the fixed cylinder (211). A spring (212) is fixed to one end of the movable plate (213).

5. The anti-corrosion coating device for packaging cartons as described in claim 2, characterized in that, The first limiting rod (214) has a housing (215) fixed at one end extending out of the fixed cylinder (211). The surface of the housing (215) is provided with an arc-shaped opening (219). The second limiting rod (216) passes through the arc-shaped opening (219). The second limiting rod (216) is fixed with a connecting block (217) at one end inside the housing (215). The connecting block (217) has a torsion end of a torsion spring (207) fixed at one end. A fixing rod (218) passes through the inside of the torsion spring (207). The fixing rod (218) is fixed inside the housing (215).

6. The anti-corrosion coating device for packaging cartons as described in claim 1, characterized in that, The concave plate (1) has grooves (3) on both sides of its inner wall. A second motor (304) is installed at one end of the groove (3). The output shaft of the second motor (304) is connected to the fan blade (302). Electric heating tubes (303) are installed at both the upper and lower ends of the groove (3). A mesh (301) is installed at the opening of the groove (3).

7. The anti-corrosion coating device for packaging cartons as described in claim 1, characterized in that, The top and bottom sides of the paint box (2) are connected to one end of a liquid pipe (201), and the other end of the liquid pipe (201) is fitted with a pipe cap.

Images