Surface paint cleaning device for paperboard printing mold

Abstract

The invention relates to the technical field of corrugated board printing equipment, in particular to a paperboard printing mold surface paint cleaning device which comprises a shell. The cleaning mechanism is used for cleaning the printing mold; the driving mechanism is used for driving the printing mold to move; the fixing mechanism is used for fixing the printing mold; the cleaning mechanism is arranged on the shell, the fixing mechanism is arranged at the top end of the shell, and the driving mechanism is arranged on the side face of the shell. The bottom of the shell can be divided into a plurality of independent collecting grooves through the arranged baffles, so that cleaning wastewater generated in the cleaning process is collected, the cleaning wastewater can be sprayed to a subsequent printing mold in cooperation with a drainage pipe, and therefore the cleaning water can be repeatedly used for multiple times; and meanwhile, the printing mold can be cleaned through cleaning water with different saturation degrees for many times, on one hand, the utilization rate of the cleaning water is increased, waste of the cleaning water is reduced, on the other hand, the cleaning frequency of the printing mold is increased, and the cleaning effect of the printing mold is improved.

Description

Technical Field

[0001] This invention relates to the field of corrugated cardboard printing equipment technology, specifically to a device for cleaning paint from the surface of cardboard printing molds. Background Technology

[0002] In the cardboard packaging printing industry, flexible polymer molds with specific graphic embossing structures are commonly used to emboss, varnish, or perform partial printing on cardboard surfaces. During the use of these printing molds, the surface inevitably becomes contaminated with printing inks, varnishes, or other types of paint. To ensure printing quality and pattern accuracy, it is necessary to thoroughly clean the residual paint layer from the mold surface regularly.

[0003] In existing technologies, the cleaning process for printing molds involves a separate, complete cleaning operation for each mold using a newly prepared or replenished cleaning solution. After cleaning, the waste liquid, containing a large amount of dissolved or emulsified paint, is usually discharged directly or sent to a specialized hazardous waste treatment center.

[0004] However, existing cleaning processes have some shortcomings. Firstly, each cleaning cycle starts with fresh cleaning solution, failing to fully utilize the effective components. Secondly, for frequent cleaning operations, the procurement cost of cleaning agents becomes a heavy operational burden, resulting in low utilization of the cleaning medium and high costs. Furthermore, the waste liquid generated from cleaning printing molds is large in volume and high in concentration, making subsequent collection, storage, transportation, and harmless treatment processes cumbersome. Therefore, we propose a paint cleaning device for the surface of cardboard printing molds. Summary of the Invention

[0005] The purpose of this invention is to provide a paint cleaning device for the surface of cardboard printing molds, which solves the problem of high consumption of cleaning fluid mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A device for cleaning paint from the surface of a cardboard printing mold, comprising a housing; A cleaning unit used for cleaning printing molds; The drive mechanism is used to drive the printing mold to move; A fixing mechanism is used to fix the printing mold; The cleaning mechanism is mounted on the outer casing, the fixing mechanism is mounted on the top of the outer casing, and the driving mechanism is mounted on the side of the outer casing.

[0007] Preferably, the fixing mechanism includes a timing belt, a fixing seat is fixedly connected to the timing belt, a locking block is fixedly connected to the fixing seat, and a fixing strip is detachably connected to the locking block.

[0008] Preferably, the cleaning mechanism includes a bracket, which is slidably connected inside the housing, a spray head is rotatably connected to the bracket, and a drive frame is slidably connected to the bracket, with the spray head passing through the drive frame.

[0009] Preferably, a sliding groove is provided on the inner side of the drive frame, and a drive rod is fixedly connected to the spray head, the drive rod being slidably connected inside the sliding groove.

[0010] Preferably, a baffle is fixedly connected to the bottom of the inner shell, and a plurality of baffles are provided, which are equidistant from each other. A drain outlet is provided at the bottom of the shell, and a sealing block is fixedly connected to the middle of the drain outlet.

[0011] Preferably, the drive mechanism includes a synchronous pulley, which is rotatably connected to the housing. The synchronous belt is sleeved on the outside of the synchronous pulley. A geared motor is fixedly connected to the housing, and the output end of the geared motor is fixedly connected to the synchronous pulley.

[0012] Preferably, a limiting plate is fixedly connected to the inner wall of the outer shell, the limiting plate has an arc-shaped structure, and limiting blocks are fixedly connected to both ends of the drive frame, with the ends of the limiting blocks abutting against the limiting plate.

[0013] Preferably, an air inlet pipe is fixedly connected to the top of the sealing block, and an air pump is fixedly connected to the side of the outer shell, with the output end of the air pump communicating with the air inlet pipe.

[0014] Preferably, a liquid storage tank is slidably connected to the bottom end of the outer shell, a tank opening is connected to the top end of the liquid storage tank, the tank opening is provided through the bottom end of the outer shell, a sealing block is sleeved on the outside of the tank opening, and a drain pipe is fixedly connected to the bottom end of the side of the liquid storage tank.

[0015] Preferably, a cylinder is fixedly connected to the bottom end of the outer shell, a movable frame is fixedly connected to the output end of the cylinder, the bottom end of the liquid storage tank is fixedly connected to the movable frame, a push rod motor is fixedly connected to the side of the outer shell, a lifting frame is fixedly connected to the output end of the push rod motor, and the lifting frame is fixedly connected to the drive frame.

[0016] By employing the above technical solution, the present invention provides a paint cleaning device for the surface of cardboard printing molds, which has at least the following beneficial effects: (1) The present invention can divide the bottom of the outer shell into several independent collection tanks by setting baffles, thereby collecting the cleaning wastewater generated during the cleaning process. With the help of the drain pipe, the cleaning wastewater can be sprayed onto the subsequent printing mold, so that the cleaning water can be reused multiple times. At the same time, the printing mold can also be cleaned by cleaning water with different saturation levels multiple times. On the one hand, it improves the utilization rate of cleaning water and reduces the waste of cleaning water, and on the other hand, it increases the number of times the printing mold is cleaned and improves the cleaning effect of the printing mold.

[0017] (2) The present invention can simultaneously pump a large amount of air into the storage tank through the air inlet pipe by setting an air pump, and use the increased air pressure to squeeze the cleaning waste liquid collected in the storage tank back into the spray head, thereby improving the synchronicity of cleaning, reducing the use of water pump, and allowing different printing molds to be cleaned or stopped at the same time. At the same time, compared with water pump, the cleaning waste liquid will not enter the air pump, thereby avoiding the blockage caused by the cleaning waste liquid containing paint entering the water pump, and reducing the maintenance cost of the equipment. Attached Figure Description

[0018] The accompanying drawings, which are provided to further illustrate the invention, constitute a part of this application: Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ; Figure 4 This is a schematic diagram of the internal structure of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the internal structure of the present invention. Figure 2 ; Figure 6 In this invention Figure 5 Enlarged view of point A; Figure 7 This is a schematic diagram of the cleaning mechanism structure of the present invention; Figure 8 In this invention Figure 7 Enlarged view of point B; Figure 9 This is a schematic diagram of the fixing strip structure of the present invention.

[0019] In the diagram: 1. Outer shell; 2. Cleaning mechanism; 201. Bracket; 202. Spray head; 203. Drive frame; 204. Slide groove; 205. Drive rod; 206. Baffle; 207. Drain outlet; 208. Sealing block; 209. Air inlet pipe; 210. Air pump; 211. Liquid storage tank; 212. Tank opening; 213. Drain pipe; 3. Drive mechanism; 301. Synchronous pulley; 302. Gear motor; 303. Limit plate; 304. Limit block; 305. Cylinder; 306. Moving frame; 307. Push rod motor; 4. Fixing mechanism; 401. Synchronous belt; 402. Fixing seat; 403. Locking block; 5. Fixing strip. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] A device for cleaning paint from the surface of a cardboard printing mold, such as Figures 1-9 As shown, it includes a housing 1; a cleaning mechanism 2 is provided on the housing 1 for cleaning the printing mold; a fixing mechanism 4 is provided at the top of the housing 1 for fixing the printing mold; and a driving mechanism 3 is provided on the side of the housing 1 for driving the printing mold to move.

[0022] Specifically, the fixing mechanism 4 includes a timing belt 401. There are two sets of fixing mechanisms 4, which are symmetrically arranged at the top of the inner sides of the outer shell 1. Several fixing seats 402 are fixedly connected to each of the two timing belts 401, and the fixing seats 402 on the two timing belts 401 correspond one-to-one. The timing belt 401 is used to pull the fixing seats 402 to move, so that the fixing seats 402 can move from one end of the outer shell 1 to the other end of the outer shell 1. A locking block 403 is fixedly connected to the fixing base 402. The fixing base 402 and the locking block 403 are arranged in a circular array around the timing belt 401. A fixing strip 5 is detachably connected to the locking block 403. The locking block 403 is used to clamp and fix the fixing strip 5. The locking block 403 has an Ω-shaped structure, and one open end of the locking block 403 is set away from the timing belt 401 for installing the fixing strip 5. The symmetrically arranged locking blocks 403 can fix both ends of the fixing strip 5 at the same time. The fixing strip 5 is detachably connected to both ends of the printing mold for fixing both ends of the printing mold during the cleaning process. The fixing strip 5 fixed on the locking block 403 can be used with the locking block 403 and the timing belt. The 401 components work together to pull and move the printing mold. At the same time, the fixing strip 5, fixed to the other end of the printing mold, can stretch the printing mold through its own weight, keeping the printing mold in a taut state. The fixing strip 5 is a triangular structure with one open end, which can easily cooperate with the clamping block 403 and quickly snap into the inside of the clamping block 403 to complete the fixing operation of the printing mold. At the same time, the triangular fixing strip 5 with one open end can fix the flexible material printing mold through elasticity, reducing damage to the printing mold during the clamping and fixing process. In addition, the clamping blocks 403 are equally spaced, so that the printing molds in different cleaning states are kept at equal distances, which facilitates cleaning and installation and fixing operations.

[0023] It is worth noting that the cleaning mechanism 2 includes a bracket 201, which is slidably connected inside the outer casing 1. A spray head 202 is rotatably connected to the bracket 201. The bracket 201 is used to support the spray head 202, so that the spray head 202 can rotate on the bracket 201 to increase the area of ​​spray cleaning. At the same time, there are several spray heads 202, and the several spray heads 202 are arranged in a straight line on the bracket 201, so that the printing mold at the same height can be cleaned simultaneously by several spray heads 202. A drive frame 203 is slidably connected to the bracket 201. The spray head 202 is set through the drive frame 203. A groove 204 is opened on the inner side of the drive frame 203. A drive rod 205 is fixedly connected to the spray head 202. The drive rod 205 is slidably connected inside the groove 204. The drive frame 203 is used to drive the spray head 202 to rotate. The drive frame 203 has a U-shaped structure. The groove 204 is opened on the inner side of the drive frame 203. The drive rod 205 can be driven through the groove 204, so that the spray head 202 can swing under the drive of the drive frame 203.

[0024] Furthermore, a baffle 206 is fixedly connected to the bottom of the inner shell 1. Several baffles 206 are provided and are equidistant from each other. Adjacent baffles 206, together with the shell 1, can form a collection structure to collect the cleaning water dripping during the cleaning process. The side of the baffle 206 near the printing mold loading is inclined, which can guide and collect the cleaning water. The baffle 206 can divide the bottom of the shell 1 into several independent collection tanks to collect the cleaning wastewater generated during the cleaning process. With the help of the drain pipe, the cleaning wastewater can be sprayed onto the subsequent printing mold, so that the cleaning water can be reused multiple times. At the same time, the printing mold can also be cleaned multiple times with cleaning water of different saturation levels. On the one hand, it improves the utilization rate of cleaning water, reduces the waste of cleaning water, and on the other hand, it increases the number of times the printing mold is cleaned, thus improving the cleaning effect of the hard brush mold. The bottom of the outer casing 1 is provided with a drain outlet 207 for collecting cleaning water. A sealing block 208 is fixedly connected in the middle of the drain outlet 207. A storage tank 211 is slidably connected to the bottom of the outer casing 1. A tank opening 212 is connected to the top of the storage tank 211 and passes through the bottom of the outer casing 1. The sealing block 208 is sleeved on the outside of the tank opening 212. A drain pipe 213 is fixedly connected to the bottom side of the storage tank 211. The sealing block 208 is used to cooperate with the tank opening 212 of the storage tank 211 to seal the tank opening 212 when the storage tank 211 is closed. The drain pipe 213 is used to drain the cleaning waste liquid temporarily stored in the storage tank 211, so that the cleaning waste liquid can be reused or discharged and removed. At the same time, the other end of the drain pipe 213 can be connected to the spray head 202, so that the cleaning waste liquid can be guided back to the spray head 202 for spraying.

[0025] Based on this, the drive mechanism 3 includes a synchronous pulley 301, which is rotatably connected to the outer shell 1. A geared motor 302 is fixedly connected to the outer shell 1, and the output end of the geared motor 302 is fixedly connected to the synchronous pulley 301. A synchronous belt 401 is sleeved on the outside of the synchronous pulley 301. The synchronous pulley 301 is used to drive and guide the movement of the synchronous belt 401. There are two sets of synchronous pulleys 301, and each set of synchronous pulleys 301 has two pulleys. Each set of synchronous pulleys 301 is respectively connected to the two inner ends of the synchronous belt 401 for supporting and guiding the synchronous belt 401. The synchronous pulley 301 is made of rubber, which can increase the friction between it and the synchronous belt 401, thereby improving the driving and traction effect of the synchronous belt 401. The synchronous pulley 301 can rotate periodically by being driven by the geared motor 302.

[0026] Furthermore, a limiting plate 303 is fixedly connected to the inner wall of the outer shell 1, and limiting blocks 304 are fixedly connected to both ends of the drive frame 203, with the ends of the limiting blocks 304 abutting against the limiting plate 303.

[0027] Based on this, an air inlet pipe 209 is fixedly connected to the top of the sealing block 208, and an air pump 210 is fixedly connected to the side of the outer casing 1. The output end of the air pump 210 is connected to the air inlet pipe 209. The air pump 210 can inject a large amount of air into the sealing block 208 and the liquid storage tank 211 through the air inlet pipe 209, thereby forcing the cleaning waste liquid stored in the liquid storage tank 211 outward. The cleaning waste liquid is used to perform a preliminary cleaning operation on the printing mold, improving the utilization rate of the cleaning waste liquid. At the same time, the air pump 210 is synchronously connected to several liquid storage tanks 211 through pipes. Therefore, when the air pump 210 pumps air, it can pump a large amount of gas into multiple liquid storage tanks 211 at the same time, so that different spray heads 202 can simultaneously perform cleaning operations on different printing molds.

[0028] In addition, a cylinder 305 is fixedly connected to the bottom of the outer casing 1, and a movable frame 306 is fixedly connected to the output end of the cylinder 305. The bottom of the liquid storage tank 211 is fixedly connected to the movable frame 306. The cylinder 305 is used to drive the liquid storage tank 211 to move up and down through the movable frame 306, so that different numbers of liquid storage tanks 211 can be raised and lowered simultaneously to open or close.

[0029] Based on this, a push rod motor 307 is fixedly connected to the side of the outer casing 1, and a lifting frame is fixedly connected to the output end of the push rod motor 307. The lifting frame is fixedly connected to the drive frame 203. The push rod motor 307 is used to move up and down through the lifting drive bracket 201 to conveniently adjust the position of the spray head 202, so that the spray head 202 can be used to clean different positions of the printing mold.

[0030] In use, the paperboard printing mold surface paint cleaning device of the present invention first installs each printing mold, with fixing strips 5 fixed to both ends, onto different clamping blocks 403. The fixing strip 5, with one end of the printing mold fixed, is pressed downwards into the opening of the clamping block 403 until it is completely inside. The clamping block 403 closes the opening through its own elasticity, fixing the fixing strip 5 inside, thus completing the installation and fixing operation of a single printing mold. Then, the reduction motor 302 starts and drives the synchronous wheel 301 to rotate. The synchronous wheel 301 then drives the synchronous belt 401 to move, guiding the printing mold from the outside of the outer shell 1 into the cleaning structure inside the outer shell 1. The reduction motor 302 starts and stops multiple times during operation, causing the printing mold to stop between different baffles 206 for multiple cleaning operations. When the printing mold moves close to the unloading side, the external cleaning water spray head 202 sprays cleaning water onto the surface of the printing mold under water pressure. Simultaneously, the push rod motor 307 starts and pushes the bracket 201 downwards. During its movement, the support 201 drives the spray head 202 and the drive frame 203 to move synchronously. The limiting block 304 on the side of the drive frame 203 moves along the limiting plate 303, and the spray head 202 cleans the surface of the printing mold accordingly. Since the printing mold is only fixed to the fixed base 402 at its top, the flexible printing mold is drooping. When the printing mold is pulled by the fixed base 402, the bottom of the printing mold switches between different baffles 206 at its top and is in an inclined state due to the restriction of the baffles 206. Therefore, the cleaning wastewater during the cleaning process flows along the inclined printing mold to the adjacent baffles 206. While the printing mold is moving, the cylinder 305 drives the storage tank to move downward, so that the cleaning wastewater between the baffles 206 can flow from the drain 207 to the storage tank 211. While cleaning the first printing mold, the air pump 210 pumps a large amount of air into the storage tank 211 through the exhaust pipe. The air then forces out the cleaning wastewater, which flows from the drain pipe to the spray head 202 to clean the second printing mold. The cleaning wastewater from the second printing mold flows in the same way to the baffles 206 below the third printing mold. This allows the cleaning wastewater to be reused multiple times and the printing molds to be cleaned repeatedly. The entire cleaning process is as follows: when the printing mold moves into the housing 1, the cleaning wastewater from multiple cleanings is sprayed onto the surface of the printing mold for initial cleaning. After each subsequent movement, the cleaning wastewater from the previous printing mold is used to clean the printing mold. With each movement, the number of cleaning cycles using the cleaning water gradually decreases, thus the cleaning water gradually becomes clear. Simultaneously, the repeated use of the cleaning water improves the cleaning effect on the printing mold and reduces waste.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paperboard printing mold surface paint cleaning device characterized by: Include shell (1); Cleaning mechanism (2) for cleaning printing mold; Driving mechanism (3) for driving printing mold to move; Fixing mechanism (4) for fixing printing mold; The cleaning mechanism (2) is arranged on the shell (1), the fixing mechanism (4) is arranged at the top end of the shell (1), and the driving mechanism (3) is arranged on the side of the shell (1).

2. A paperboard printing mold surface paint cleaning device according to claim 1, characterized in that: The fixing mechanism (4) comprises a synchronous belt (401), a fixing seat (402) is fixedly connected on the synchronous belt (401), a clamping block (403) is fixedly connected on the fixing seat (402), and a fixing strip (5) is detachably connected on the clamping block (403).

3. A paperboard printing mold surface paint cleaning device as defined in claim 1, wherein: The cleaning mechanism (2) comprises a support (201), the support (201) is slidably connected in the shell (1), a spray head (202) is rotatably connected on the support (201), a driving frame (203) is slidably connected on the support (201), and the spray head (202) is arranged through the driving frame (203).

4. A paperboard printing mold surface paint cleaning device as defined in claim 3, wherein: The inside of the driving frame (203) is provided with a sliding groove (204), a driving rod (205) is fixedly connected on the spray head (202), and the driving rod (205) is slidably connected in the sliding groove (204).

5. A paperboard printing mold surface paint cleaning device as defined in claim 1, wherein: A plurality of baffles (206) are fixedly connected at the bottom end of the inside of the shell (1), the baffles (206) are equidistantly arranged, a drain port (207) is formed at the bottom end of the shell (1), and a sealing block (208) is fixedly connected in the middle of the drain port (207).

6. A paperboard printing mold surface paint cleaning device as defined in claim 1, wherein: The driving mechanism (3) comprises a synchronous wheel (301), the synchronous wheel (301) is rotatably connected on the shell (1), the synchronous belt (401) is sleeved on the outside of the synchronous wheel (301), a speed reducer (302) is fixedly connected on the shell (1), and the output end of the speed reducer (302) is fixedly connected with the synchronous wheel (301).

7. A paperboard printing mold surface paint cleaning device as defined in claim 3, wherein: A limiting plate (303) is fixedly connected on the inner wall of the shell (1), the limiting plate (303) is in arc structure, limiting blocks (304) are fixedly connected at both ends of the driving frame (203), and the tail end of the limiting block (304) abuts against the limiting plate (303).

8. A paperboard printing mold surface paint cleaning device as defined in claim 5, wherein: The top end of the sealing block (208) is fixedly connected with an air inlet pipe (209), the side of the shell (1) is fixedly connected with an air pump (210), and the output end of the air pump (210) and the air inlet pipe (209) are in communication.

9. A paperboard printing mold surface paint cleaning device as defined in claim 5, wherein: The bottom end of the shell (1) is slidably connected with a liquid storage tank (211), the top end of the liquid storage tank (211) is connected with a tank opening (212), the tank opening (212) is arranged through the bottom end of the shell (1), the sealing block (208) is sleeved on the outside of the tank opening (212), and the side bottom end of the liquid storage tank (211) is fixedly connected with a liquid discharge pipe (213).

10. A paperboard printing mold surface paint cleaning device as defined in claim 9, wherein: The bottom end of the shell (1) is fixedly connected with a gas cylinder (305), the output end of the gas cylinder (305) is fixedly connected with a moving frame (306), the bottom end of the liquid storage tank (211) is fixedly connected on the moving frame (306), the side of the shell (1) is fixedly connected with a push rod motor (307), the output end of the push rod motor (307) is fixedly connected with a lifting frame, and the lifting frame is fixedly connected with the driving frame (203).

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