A sizing machine for corrugated board manufacture
By introducing a filter cartridge and a stirring mechanism into the coating machine, the problem of impurities in the slurry affecting the uniformity of the coating was solved, thereby improving the purity of the slurry and the precision of the coating, and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN LONGGANG PACKAGING CO LTD
- Filing Date
- 2025-09-28
- Publication Date
- 2026-08-04
AI Technical Summary
Existing coating machines lack effective filtration and mixing mechanisms in corrugated cardboard manufacturing, resulting in impurities in the slurry affecting coating uniformity and bonding quality. Furthermore, it is difficult to accurately control the coating amount and position, leading to increased production costs and product defects.
A slurry coating machine including a filter cylinder and a stirring mechanism was designed. The filter cylinder removes impurities, the stirring roller and scraper ensure uniform mixing of the slurry, and the moving mechanism and cylinder push plate work together to achieve precise control of the slurry coating position and amount.
It improves the purity and quality of the slurry, ensures the uniformity of the slurry, reduces production costs, and enhances the efficiency and precision of coating.
Smart Images
Figure CN224591245U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corrugated cardboard manufacturing technology, specifically to a coating machine for corrugated cardboard manufacturing. Background Technology
[0002] Corrugated cardboard is a common packaging material, made of at least one layer of corrugated paper and one layer of linerboard bonded together. Its core structure is the corrugated paper, which is wavy, similar to the pleats of an accordion. This shape gives corrugated cardboard good cushioning properties. Corrugated cardboard has many advantages: it is lightweight yet strong, effectively protecting the contents from damage such as collisions and compression; it is relatively inexpensive, reducing packaging costs; it is easy to process, allowing it to be made into packaging boxes of various shapes and sizes according to needs; and it is recyclable, meeting environmental protection requirements. In industries such as logistics and e-commerce, corrugated cardboard is widely used to make packaging boxes.
[0003] In the corrugated cardboard manufacturing industry, the coating process is a crucial step affecting product quality. Existing coating machines lack effective filtration and mixing mechanisms in terms of slurry processing. Impurities in the slurry directly affect the uniformity of coating and the bonding quality of the cardboard, leading to defects in the finished product. At the same time, insufficient mixing will cause uneven distribution of components in the slurry, resulting in inconsistent coating thickness of the corrugated cardboard, which in turn affects the overall performance of the corrugated cardboard. Furthermore, it is difficult to accurately control the amount and position of slurry during the coating process, and it is impossible to quickly adjust according to the size and shape of the corrugated cardboard, resulting in uneven slurry application, with some areas having too much slurry and others having too little. This not only wastes slurry but also increases production costs. Utility Model Content
[0004] The purpose of this invention is to provide a coating machine for corrugated cardboard manufacturing to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a coating machine for corrugated cardboard manufacturing, comprising a workbench, and further comprising:
[0006] A support frame is fixed to the top of the workbench. A horizontally arranged fixing plate is fixed to the inner wall of the workbench. A mixing tank is installed on the top of the support frame. A movable frame is slidably connected to the outer side of the fixing plate.
[0007] A moving mechanism is provided on the outside of the movable frame. A limit frame is fixed on one side of the movable frame. A vertically installed cylinder is provided on the top of the limit frame. A push plate is fixed to the piston rod of the cylinder.
[0008] A filter cylinder is disposed inside the mixing tank. The filter cylinder is equipped with a stirring mechanism, which includes a transmission rod disposed inside the filter cylinder. A stirring roller and a scraper are respectively disposed on the outer side of the transmission rod, and the outer side of the scraper is in contact with the inner wall of the filter cylinder.
[0009] Preferably, the moving mechanism includes a toothed plate fixed to the top of the fixed plate, and a vertically arranged first motor is installed on the top of the movable frame. A gear is fixed to the output end of the first motor, and the outer side of the gear meshes with the outer side of the toothed plate.
[0010] Preferably, the inner wall of the support frame is fixed with two sets of horizontally arranged limiting rods, and the outer side of the limiting rods is slidably connected to the inner wall of the movable frame. A slide rail is provided on one side of the limiting frame, and the outer side of the slide rail is slidably connected to one side of the push plate.
[0011] Preferably, the top of the mixing tank is provided with a tank cover, the inner wall of the tank cover is connected to a feed hopper, and the top of the feed hopper is provided with a sealing cover.
[0012] Preferably, a fixing frame is fixed to the top of the tank lid, and a vertically arranged second motor is installed on the inner wall of the fixing frame. A rotating rod is fixed to the output end of the second motor, and the end of the rotating rod away from the second motor passes through the inner wall of the tank lid and extends into the interior of the mixing tank. A connecting flange is provided at the bottom end of the rotating rod, and the bottom of the connecting flange is fixedly connected to the top end of the transmission rod.
[0013] Preferably, the inner wall of the filter cylinder is connected to a discharge pipe, and the end of the discharge pipe away from the filter cylinder passes through the inner wall of the mixing tank and extends to the outside of the mixing tank. The bottom of the mixing tank is connected to a vertically arranged guide pipe, and valves are provided on the outside of both the discharge pipe and the guide pipe.
[0014] Preferably, the bottom end of the feed tube is connected to a flexible tube, and the inner wall of the push plate is provided with a coating disc, and the top end of the coating disc is connected to the end of the flexible tube away from the feed tube.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This invention effectively filters the slurry through a filter cylinder inside the mixing tank, removing impurities, ensuring slurry purity, and improving coating quality. In the mixing mechanism, the transmission rod drives the mixing roller to fully mix the slurry, making it uniformly mixed, which is beneficial for subsequent coating processes. The scraper is in close contact with the inner wall of the filter cylinder, which can promptly scrape off attached impurities, prevent the filter cylinder from clogging, and ensure smooth mixing and filtration. The movable frame can slide, and together with the moving mechanism, the coating position can be flexibly adjusted. The cylinder and push plate can precisely control the amount of slurry, improving coating accuracy and efficiency. Attached Figure Description
[0017] Figure 1 A schematic diagram of a preferred embodiment of the coating machine for corrugated cardboard manufacturing provided by this utility model;
[0018] Figure 2 A schematic diagram of the moving mechanism structure provided by this utility model;
[0019] Figure 3 A schematic diagram of the movable frame structure provided by this utility model;
[0020] Figure 4 A schematic diagram of the stirring mechanism provided by this utility model.
[0021] In the diagram: 1. Workbench; 2. Support frame; 3. Fixed plate; 4. Mixing tank; 5. Movable frame; 6. Moving mechanism; 61. Toothed plate; 62. First motor; 63. Gear; 7. Limiting frame; 8. Cylinder; 9. Push plate; 10. Filter cylinder; 11. Mixing mechanism; 111. Transmission rod; 112. Mixing roller; 113. Scraper; 12. Limiting rod; 13. Slide rail; 14. Tank cover; 15. Feed hopper; 16. Sealing cover; 17. Fixed frame; 18. Second motor; 19. Rotating rod; 20. Connecting flange; 21. Discharge pipe; 22. Guide pipe; 23. Valve; 24. Hose; 25. Coating disc. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-4As shown, a coating machine for corrugated cardboard manufacturing includes a workbench 1, which serves as the basic support platform for the entire coating machine, providing installation positions for other components and ensuring the stability of the overall structure of the equipment. A support frame 2 is fixed to the top of the workbench 1. A horizontally arranged fixing plate 3 is fixed to the inner wall of the workbench 1. A mixing tank 4 is installed on the top of the support frame 2. The support frame 2 is fixed to the top of the workbench 1, supporting the mixing tank 4 and other components, and positioning the mixing tank 4 at a suitable working height. The fixing plate 3 is fixed to the inner wall of the workbench 1, providing a sliding track and support for the movable frame 5 in the moving mechanism 6, allowing the movable frame 5 to move on it. The mixing tank 4 is used to store and mix the pulp required for corrugated cardboard manufacturing and is a container for pulp mixing and processing. The movable frame 5 is slidably connected to the outer side of the fixing plate 3. The moving mechanism 6 is located on the outer side of the movable frame 5. A limit frame 7 is fixed to one side of the movable frame 5. A vertically installed cylinder 8 is installed on the top of the limit frame 7. A push plate 9 is fixed to the piston rod of the cylinder 8. The limit frame 7 is fixed to the movable frame. On one side, the cylinder 8 and push plate 9 are provided with an installation position, which serves to support and position them. The cylinder 8 is vertically installed on the top of the limit frame 7, and its piston rod is fixed to the push plate 9. The extension and retraction of the piston rod pushes the push plate 9 to move up and down, thereby driving the coating disc 25 to perform the coating action. The push plate 9 moves up and down under the action of the cylinder 8. One side of it is slidably connected to the slide rail 13 to ensure the stability of the push plate 9's movement, and at the same time, it provides an installation base for the coating disc 25. It should be noted that the cylinder 8 is composed of an air compressor, an air tank, a filter pressure reducing valve, a directional control valve, and a flow control valve. During use, the air compressor compresses the ambient air to a set pressure and stores it in the air tank. The filter pressure reducing valve further purifies the air and stabilizes the pressure, and delivers it to the control valve through the air pipe. The directional control valve switches the airflow channel according to the electrical signal to determine the extension and retraction direction of the cylinder 8. The flow control valve adjusts the airflow speed and controls the movement speed of the cylinder 8. Compressed air enters the rodless chamber or rodless chamber of the cylinder 8, pushing the piston to move. The piston drives the piston rod to output linear reciprocating motion.
[0024] A filter cylinder 10 is disposed inside the mixing tank 4. An agitation mechanism 11 is installed inside the filter cylinder 10. The agitation mechanism 11 includes a transmission rod 111 disposed inside the filter cylinder 10. An agitating roller 112 and a scraper 113 are respectively disposed on the outer side of the transmission rod 111. The outer side of the scraper 113 is in contact with the inner wall of the filter cylinder 10. The filter cylinder 10, disposed inside the mixing tank 4, filters the agitated slurry, removing impurities and particles to ensure the quality of the coating. The transmission rod 111 serves as the power transmission component of the agitation mechanism 11, transmitting the power of the second motor 18 to the agitating roller 112 and the scraper 113, causing them to rotate. The agitating roller 112 rotates under the drive of the transmission rod 111, agitating the slurry in the mixing tank 4 to ensure thorough and uniform mixing. The outer side of the scraper 113 is in contact with the inner wall of the filter cylinder 10, scraping off the slurry adhering to the inner wall of the filter cylinder 10 during rotation, preventing slurry blockage and ensuring the filtration effect.
[0025] The moving mechanism 6 includes a toothed plate 61 fixed to the top of the fixed plate 3. A vertically arranged first motor 62 is installed on the top of the movable frame 5. A gear 63 is fixed to the output end of the first motor 62, and the outer side of the gear 63 meshes with the outer side of the toothed plate 61. The toothed plate 61 is fixed to the top of the fixed plate 3 to provide a meshing track for the gear 63, so that the movable frame 5 can move along the direction of the toothed plate 61. The first motor 62 is installed on the top of the movable frame 5 and serves as the power source of the moving mechanism 6. It drives the gear 63 to rotate. The gear 63 meshes with the toothed plate 61 and rotates under the drive of the first motor 62. Through the meshing action with the toothed plate 61, it drives the movable frame 5 to move.
[0026] Two sets of horizontally arranged limiting rods 12 are fixed to the inner wall of the support frame 2, and the outer sides of the limiting rods 12 are slidably connected to the inner wall of the movable frame 5. A slide rail 13 is provided on one side of the limiting frame 7, and the outer side of the slide rail 13 is slidably connected to one side of the push plate 9. The limiting rods 12 are fixed to the inner wall of the support frame 2 and slidably connected to the inner wall of the movable frame 5, which guides and limits the movement of the movable frame 5, preventing the movable frame 5 from deviating during movement and ensuring its stability. The slide rail 13 is located on one side of the limiting frame 7 and slidably connected to one side of the push plate 9. The movement of the pusher plate 9 serves as a guide, enabling it to move accurately in a predetermined direction. A tank cover 14 is located on the top of the mixing tank 4. The inner wall of the tank cover 14 connects to the feed hopper 15, and a sealing cover 16 is located on the top of the feed hopper 15. The tank cover 14, positioned on the top of the mixing tank 4, seals the mixing tank 4, preventing slurry leakage and the entry of external impurities. The feed hopper 15, connected to the inner wall of the tank cover 14, is the channel for adding slurry raw materials into the mixing tank 4. The sealing cover 16, located on the top of the feed hopper 15, is used to seal the feed hopper 15 when no material is being fed. The lid is sealed to prevent slurry from splashing out and external dust from entering. A mounting bracket 17 is fixed to the top of the lid 14. A vertically arranged second motor 18 is installed on the inner wall of the mounting bracket 17. A rotating rod 19 is fixed to the output end of the second motor 18, and the end of the rotating rod 19 away from the second motor 18 passes through the inner wall of the lid 14 and extends into the interior of the mixing tank 4. A connecting flange 20 is provided at the bottom end of the rotating rod 19, and the bottom of the connecting flange 20 is fixedly connected to the top end of the transmission rod 111. The mounting bracket 17 is fixed to the top of the lid 14 to provide a mounting position for the second motor 18. The first part is a support and fixing mechanism. The second motor 18 is installed on the inner wall of the fixing frame 17 and serves as the power source for the stirring mechanism 11. It drives the rotating rod 19 to rotate. One end of the rotating rod 19 is fixedly connected to the output end of the second motor 18, and the other end passes through the inner wall of the tank cover 14 and extends into the interior of the stirring tank 4. It is connected to the transmission rod 111 through the connecting flange 20, so as to transmit the power of the second motor 18 to the transmission rod 111. The connecting flange 20 is set at the bottom end of the rotating rod 19 to fix the rotating rod 19 and the transmission rod 111, thereby realizing the transmission of power and the connection of components.
[0027] The inner wall of the filter cylinder 10 is connected to a discharge pipe 21, and the end of the discharge pipe 21 away from the filter cylinder 10 penetrates the inner wall of the mixing tank 4 and extends to the outside of the mixing tank 4. The bottom of the mixing tank 4 is connected to a vertically arranged guide pipe 22. Valves 23 are provided on the outside of both the discharge pipe 21 and the guide pipe 22. The discharge pipe 21 is connected to the inner wall of the filter cylinder 10, and one end penetrates the inner wall of the mixing tank 4 and extends to the outside of the mixing tank 4 to discharge the filtered slurry. The guide pipe 22 is connected to the bottom of the mixing tank 4 to guide the slurry in the mixing tank 4 to the hose 24. Valves 23 are respectively provided on the outside of the discharge pipe 21 and the guide pipe 22 to control the flow of slurry in the discharge pipe 21 and the guide pipe 22. The system stops the flow of slurry, thus controlling the discharge of the slurry. The bottom end of the feed pipe 22 is connected to a hose 24. The inner wall of the push plate 9 is provided with a slurry coating disc 25, and the top end of the slurry coating disc 25 is connected to the end of the hose 24 away from the feed pipe 22. The slurry coating disc 25 is located on the inner wall of the push plate 9, and its top end is connected to the hose 24. The slurry is transported to the slurry coating disc 25 through the hose 24. The slurry coating disc 25 is driven by the push plate 9 to evenly coat the slurry onto the corrugated cardboard. One end of the hose 24 is connected to the feed pipe 22, and the other end is connected to the top end of the slurry coating disc 25. It serves as a channel for the slurry to be transported from the feed pipe 22 to the slurry coating disc 25 and has a certain degree of flexibility to adapt to the movement of the slurry coating disc 25.
[0028] When coating corrugated cardboard, the slurry material is first added to the mixing tank 4 through the feed hopper 15 at the top of the mixing tank 4. The sealing cover 16 at the top of the feed hopper 15 prevents the slurry from splashing out and external dust from entering. After the material enters, the second motor 18 installed on the inner wall of the fixing frame 17 is started. The second motor 18 drives the rotating rod 19 to rotate. The rotating rod 19 drives the transmission rod 111 to rotate through the connecting flange 20 at the bottom, which in turn causes the mixing roller 112 and the scraper 113 to rotate. The mixing roller 112 stirs the slurry in the mixing tank 4 to make it fully mixed and uniform. The outer side of the scraper 113 is in contact with the inner wall of the filter cylinder 10. During the rotation, it scrapes off the slurry adhering to the inner wall of the filter cylinder 10 to prevent the filter cylinder 10 from clogging and to ensure the filtration effect. The filtered slurry is stored in the filter cylinder 10. When coating is needed, the valve 23 on the outside of the discharge pipe 21 is opened, and the slurry is discharged through the discharge pipe 21. Alternatively, the valve 23 at the bottom of the mixing tank 4 can be opened. The valve 23 on the outside of the feed pipe 22 allows the slurry to enter the hose 24 through the feed pipe 22 and then be transported to the coating disc 25. During coating, the corrugated cardboard to be coated is placed on the workbench 1. The first motor 62 on the top of the movable frame 5 is started. The first motor 62 drives the gear 63 fixed at its output end to rotate. The gear 63 meshes with the toothed plate 61 fixed on the top of the fixed plate 3, causing the movable frame 5 to slide on the outside of the fixed plate 3. At the same time, the movable frame 5 moves along the limiting rod 12 fixed on the inner wall of the support frame 2 to achieve lateral position adjustment. Then, the cylinder 8 on the top of the limiting frame 7 is started. The piston rod of the cylinder 8 drives the push plate 9 to move vertically along the slide rail 13 to adjust the distance between the coating disc 25 and the cardboard. The top of the coating disc 25 is connected to the hose 24. The slurry is transported to the coating disc 25 through the hose 24. As the movable frame 5 moves, the coating disc 25 evenly coats the slurry on the corrugated cardboard, completing the coating operation.
[0029] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0030] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A size press for corrugated board manufacture, comprising a worktable (1), characterised in that, Also includes: A support frame (2) is fixed to the top of the workbench (1). A horizontally arranged fixing plate (3) is fixed to the inner wall of the workbench (1). A mixing tank (4) is provided on the top of the support frame (2). A movable frame (5) is slidably connected to the outer side of the fixing plate (3). The moving mechanism (6) is located on the outside of the movable frame (5). A limit frame (7) is fixed on one side of the movable frame (5). A vertically installed cylinder (8) is provided on the top of the limit frame (7). A push plate (9) is fixed on the piston rod of the cylinder (8). A filter cylinder (10) is disposed inside the mixing tank (4). A stirring mechanism (11) is disposed inside the filter cylinder (10). The stirring mechanism (11) includes a transmission rod (111) disposed inside the filter cylinder (10). A stirring roller (112) and a scraper (113) are respectively disposed on the outer side of the transmission rod (111), and the outer side of the scraper (113) is in contact with the inner wall of the filter cylinder (10).
2. A size press for corrugated board manufacture according to claim 1, characterized in that The moving mechanism (6) includes a toothed plate (61) fixed to the top of the fixed plate (3), and a vertically arranged first motor (62) is installed on the top of the movable frame (5). A gear (63) is fixed to the output end of the first motor (62), and the outer side of the gear (63) meshes with the outer side of the toothed plate (61).
3. A size press for corrugated board manufacture according to claim 1, characterized in that: The inner wall of the support frame (2) is fixed with two sets of horizontally arranged limiting rods (12), and the outer side of the limiting rods (12) is slidably connected to the inner wall of the movable frame (5). The limiting frame (7) is provided with a slide rail (13) on one side, and the outer side of the slide rail (13) is slidably connected to one side of the push plate (9).
4. A size press for corrugated board manufacture according to claim 1, characterized in that: The top of the mixing tank (4) is provided with a tank cover (14), the inner wall of the tank cover (14) is connected to the feed hopper (15), and the top of the feed hopper (15) is provided with a sealing cover (16).
5. A size press for corrugated board manufacture according to claim 4, characterised in that: A fixing frame (17) is fixed to the top of the tank cover (14). A vertically arranged second motor (18) is installed on the inner wall of the fixing frame (17). A rotating rod (19) is fixed to the output end of the second motor (18). The end of the rotating rod (19) away from the second motor (18) passes through the inner wall of the tank cover (14) and extends into the interior of the mixing tank (4). A connecting flange (20) is provided at the bottom end of the rotating rod (19). The bottom of the connecting flange (20) is fixedly connected to the top end of the transmission rod (111).
6. A size press for corrugated board manufacture according to claim 1, characterized in that: The inner wall of the filter cylinder (10) is connected to a discharge pipe (21), and the end of the discharge pipe (21) away from the filter cylinder (10) passes through the inner wall of the mixing tank (4) and extends to the outside of the mixing tank (4). The bottom of the mixing tank (4) is connected to a vertically arranged guide pipe (22), and valves (23) are provided on the outside of both the discharge pipe (21) and the guide pipe (22).
7. A size press for corrugated board manufacture according to claim 6, characterised in that: The bottom end of the feed tube (22) is connected to a flexible tube (24), and the inner wall of the push plate (9) is provided with a coating disc (25), and the top end of the coating disc (25) is connected to the end of the flexible tube (24) away from the feed tube (22).