An automatic alignment and adjustment device for cutting gravure printing squeegees

Abstract

This utility model relates to the field of printing equipment manufacturing technology and discloses an automatic alignment and adjustment device for cutting gravure printing doctor blades. It includes: a processing table as a supporting body; a slide table slidably connected to the inner wall of the processing table; a positioning plate fixedly connected to the top of the slide table; connecting frames fixedly connected to opposite ends of the slide table; pull rods slidably connected to the inner walls of the connecting frames; limit plates fixedly connected to the outer walls of the pull rods; and springs provided between the limit plates and the inner walls of the connecting frames. In this utility model, by pulling the pull rods out of the fixing holes, the connecting frames are pulled, which in turn moves the slide table, causing the positioning plates to adjust their length. This allows for precise adjustment of the doctor blade cutting length according to different printing tasks and printing plate specifications, ensuring that the cut doctor blade size matches the actual required height and avoiding installation problems and reduced printing quality due to dimensional deviations.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment manufacturing technology, and in particular to an automatic alignment and adjustment device for cutting gravure printing doctor blades. Background Technology

[0002] Gravure printing, as an important printing method, is widely used in many fields such as packaging, publishing, and decoration. Its principle is that the entire printing plate cylinder is inked, and a doctor blade scrapes away the ink from the non-recessed areas, leaving only the ink on the raised areas. Then, the paper comes into contact with the printing plate under the action of the impression cylinder, transferring the ink from the recessed areas to the paper to complete the printing process. An automatic alignment adjustment device is required when the doctor blade is being cut.

[0003] During the cutting process, it is impossible to precisely adjust the cutting length parameters of the doctor blade according to different printing needs and printing plate specifications. This results in the doctor blade size after cutting not meeting the actual requirements. If the doctor blade is too long or too short, it will affect its fit with the printing plate. If it is too short, it may not be able to completely cover the area of ​​the printing plate that needs to be scraped. If it is too long, it may cause waste or interfere with other parts of the printing equipment.

[0004] Therefore, to address the problem that existing methods cannot accurately adjust the cutting length parameters of the doctor blade according to different printing needs and printing plate specifications during cutting, resulting in the doctor blade size after cutting not meeting the actual requirements, an automatic alignment and adjustment device is needed to solve the above problem. Utility Model Content

[0005] To address the problem in existing technologies where the cutting length parameters of the doctor blade cannot be precisely adjusted according to different printing needs and printing plate specifications, resulting in a doctor blade size that does not meet actual requirements, this application provides an automatic alignment and adjustment device for cutting gravure printing doctor blades. By pulling the lever out of the fixing hole, the connecting frame is pulled, which drives the slide table. The slide table then drives the positioning plate to adjust the length. This allows for precise adjustment of the doctor blade cutting length according to different printing tasks and printing plate specifications, ensuring that the cut doctor blade size matches the actual required height and avoiding installation problems and reduced printing quality due to dimensional deviations.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An automatic alignment and adjustment device for cutting gravure printing squeegees includes: a processing table as a supporting body; a slide table slidably connected to the inner wall of the processing table; a positioning plate fixedly connected to the top of the slide table; a connecting frame fixedly connected to opposite ends of the slide table; a pull rod slidably connected to the inner wall of each connecting frame; a limit plate fixedly connected to the outer wall of each pull rod; a spring provided between the limit plate and the inner wall of the connecting frame; baffles fixedly connected to both sides of the top of the processing table; a push plate slidably connected to the inner wall of each baffle; a driving assembly provided at the right end of each push plate; a support frame fixedly connected to the top of the processing table; a hydraulic rod fixedly connected to the top of the support frame; a cutting blade fixedly connected to the driving end of the hydraulic rod through the support frame; and a feeding assembly provided on the inner wall of the processing table.

[0008] As a further improvement of this utility model, one end of each spring is connected to the limiting plate, and the other end of each spring is connected to the inner wall of the connecting frame.

[0009] As a further improvement of this utility model, the inner wall of the processing table is provided with multiple fixing holes corresponding to the tie rod, and the outer wall of the limiting plate is slidably connected to the inner wall of the connecting frame.

[0010] As a further improvement of this utility model, the driving assembly includes fixed plates fixedly connected to both sides of the top of the processing table, and an electric push rod is fixedly connected to the inner wall of the fixed plate. The driving end of the electric push rod passes through the fixed plate and is fixedly connected to the right end of the push plate.

[0011] As a further improvement of this utility model, limit rods are fixedly connected to both sides of the top end of the cutting blade, and the outer wall of the limit rods is slidably connected to the inner wall of the support frame.

[0012] As a further improvement of this utility model, the unloading assembly includes an unloading block slidably connected to the inner wall of the processing table, a tension spring is provided between the unloading block and the processing table, a fixing frame is fixedly connected to the front end of the processing table, a motor is fixedly connected to the left end of the fixing frame, the drive end of the motor passes through the fixing frame and is fixedly connected to a winding roller, a steel cable is fixedly connected to the outer wall of the winding roller, and the rear end of the steel cable is fixedly connected to the front end of the unloading block.

[0013] As a further improvement of this utility model, one end of the tension spring is connected to the unloading block, and the other end of the tension spring is connected to the inner wall of the processing table.

[0014] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0015] 1. In this utility model, by pulling the pull rod to disengage from the fixing hole, the connecting frame is pulled to drive the slide table, and the slide table drives the positioning plate to adjust the length. This allows for precise adjustment of the cutting length of the doctor blade according to different printing tasks and printing plate specifications, ensuring that the size of the doctor blade after cutting matches the actual required height, and avoiding installation problems and printing quality degradation caused by size deviation.

[0016] 2. In this utility model, a motor drives a take-up roller, which in turn drives a steel cable to retract. When the steel cable retracts, it drives a feeding block, which in turn drives the printing doctor blade to feed the material. Thus, after the doctor blade is cut, it can be automatically transported to a designated position without manual handling, reducing the time and labor intensity of manual operation and improving the overall production efficiency. Attached Figure Description

[0017] Figure 1 This is an isometric view of an automatic alignment adjustment device for cutting gravure printing squeegees, as proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of a processing table for an automatic alignment and adjustment device for cutting gravure printing squeegees, as proposed in this utility model.

[0019] Figure 3 A schematic diagram of the internal structure of the connecting frame of the automatic alignment and adjustment device for cutting gravure printing doctor blades proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the cutting blade structure of an automatic alignment adjustment device for cutting gravure printing squeegees, as proposed in this utility model.

[0021] Figure 5 This is a schematic cross-sectional view of the processing table of an automatic alignment and adjustment device for cutting gravure printing doctor blades, as proposed in this utility model.

[0022] Legend:

[0023] 1. Processing table; 2. Slide table; 3. Positioning plate; 4. Connecting frame; 5. Tie rod; 6. Limiting plate; 7. Spring; 8. Fixing hole; 9. Fixing plate; 10. Electric push rod; 11. Push plate; 12. Baffle; 13. Support frame; 14. Hydraulic rod; 15. Cutting blade; 16. Limiting rod; 17. Material unloading block; 18. Tension spring; 19. Fixing frame; 20. Motor; 21. Take-up roller; 22. Steel cable. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0025] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0029] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] Reference Figures 2-4Example 1: An automatic alignment and adjustment device for cutting gravure printing squeegees, comprising: a processing table 1 serving as a supporting body; a slide table 2 slidably connected to the inner wall of the processing table 1; a positioning plate 3 fixedly connected to the top of the slide table 2; connecting frames 4 fixedly connected to opposite ends of the slide table 2; pull rods slidably connected to the inner walls of the connecting frames 4; limit plates 6 fixedly connected to the outer walls of the pull rods 5; springs 7 provided between the limit plates 6 and the inner walls of the connecting frames 4; baffles 12 fixedly connected to both sides of the top of the processing table 1; push plates 11 slidably connected to the inner walls of the baffles 12; and a drive assembly provided at the right end of the push plates 11. A support frame 13 is fixedly connected to the top of the processing table 1. A hydraulic rod 14 is fixedly connected to the top of the support frame 13. The driving end of the hydraulic rod 14 passes through the support frame 13 and is fixedly connected to a cutting blade 15. A feeding assembly is provided on the inner wall of the processing table 1. The driving assembly includes fixed plates 9 fixedly connected to both sides of the top of the processing table 1. An electric push rod 10 is fixedly connected to the inner wall of the fixed plate 9. The driving end of the electric push rod 10 passes through the fixed plate 9 and is fixedly connected to the right end of the push plate 11. Limiting rods 16 are fixedly connected to both sides of the top of the cutting blade 15. The outer wall of the limiting rod 16 is slidably connected to the inner wall of the support frame 13.

[0031] Specifically, during the squeegee cutting operation, the squeegee material to be cut is first placed between the baffles 12. Then, the electric push rod 10 is activated, and its output shaft pushes the push plate 11 to move smoothly. During this movement, the push plate 11 pulls the material to be cut slowly towards the positioning plate 3 until the material is tightly against the positioning plate 3, achieving precise alignment. Once the material is aligned, the hydraulic rod 14 is activated, and its piston rod extends, driving the cutting blade 15 to move along a set path. As the cutting blade 15 moves, its sharp blade cuts the squeegee material, completing the cutting process. It is worth noting that during the movement of the cutting blade 15, the limiting rod 16 slides synchronously inside the support frame 13. The limiting rod 16 plays a crucial stabilizing role, preventing the cutting blade 15 from cutting too far. During the process, issues such as shaking and deviation occur, which greatly improves the stability of the cutting blade 15 and ensures cutting accuracy. If, in actual production, it is necessary to adjust the cutting length of the doctor blade according to different printing tasks and printing plate specifications, the operation is also very convenient. Simply pull the lever 5 to release it from the internal restraint of the fixing hole 8. At this time, the connecting frame 4 can move freely. Pulling the connecting frame 4 will cause the slide table 2 to move smoothly on the corresponding track. As the slide table 2 moves, the positioning plate 3 also moves. The change in the position of the positioning plate 3 directly realizes the adjustment of the cutting length. Through this adjustment method, the cutting length of the doctor blade can be accurately set to ensure that the size of the doctor blade after cutting is highly consistent with the actual printing requirements, effectively avoiding subsequent installation problems caused by size deviation and adverse effects on printing quality.

[0032] Reference Figure 1 , Figure 2 and Figure 5 The unloading assembly includes an unloading block 17 slidably connected to the inner wall of the processing table 1. A tension spring 18 is provided between the unloading block 17 and the processing table 1. A fixing frame 19 is fixedly connected to the front end of the processing table 1. A motor 20 is fixedly connected to the left end of the fixing frame 19. The drive end of the motor 20 passes through the fixing frame 19 and is fixedly connected to a take-up roller 21. A steel cable 22 is fixedly connected to the outer wall of the take-up roller 21. The rear end of the steel cable 22 is fixedly connected to the front end of the unloading block 17. One end of the tension spring 18 is connected to the unloading block 17, and the other end of the tension spring 18 is connected to the inner wall of the processing table 1.

[0033] Specifically, when the unloading operation is required, the motor 20 is started, and the drive end of the motor 20 immediately begins to rotate. Its strong torque drives the take-up roller 21 to rotate synchronously. During rotation, the take-up roller 21 acts like an orderly winding device, continuously winding and retracting the steel cable 22. As the steel cable 22 is continuously retracted, the unloading block 17 connected to it experiences a strong pulling force and begins to move smoothly along a predetermined track. As the unloading block 17 moves, it firmly pulls the already cut printing squeegee forward until it accurately delivers the squeegee to the pre-set designated position. In this way, the entire unloading process does not require manual handling, greatly reducing the time spent on manual operation and significantly lowering costs. This reduces the labor intensity of workers and significantly improves overall production efficiency. When the unloading task is completed and the unloading block 17 needs to be reset, the motor 20 is restarted. However, the direction of rotation of the motor 20 is opposite to that during unloading. It drives the take-up roller 21 to rotate in the direction of releasing the steel cable 22. As the steel cable 22 is gradually released, the tension spring 18 connected to the unloading block 17 plays a key role. The tension spring 18 generates a strong pulling force with its stored elastic potential energy, steadily pulling the unloading block 17 back to its initial position. Under the pull of the tension spring 18, the unloading block 17 is precisely reset along its original movement trajectory, making full preparations for the next unloading operation and ensuring that the entire unloading process can be carried out in a cyclical and efficient manner.

[0034] Example 2: As one of the optimized structural designs of Example 1, such as Figures 2-3 As shown, one end of each spring 7 is connected to the limiting plate 6, and the other end of each spring 7 is connected to the inner wall of the connecting frame 4. The inner wall of the processing table 1 is provided with multiple fixing holes 8 corresponding to the pull rod 5. The outer wall of the limiting plate 6 is slidably connected to the inner wall of the connecting frame 4.

[0035] Specifically, after adjusting the doctor blade to the appropriate cutting length, the operator releases the lever 5 that has been held. Due to the pre-installed spring 7 inside the device, the spring 7 will quickly rebound due to its elastic potential energy the moment the lever 5 is released. The spring 7 will exert a force on the lever 5, thereby moving the lever 5 towards the fixing hole 8 until the lever 5 is precisely inserted into the fixing hole 8. At this time, the lever 5 and the fixing hole 8 are tightly fitted, so that the adjusted part position is firmly fixed, ensuring that the positioning plate 3 and other parts will not be displaced during the subsequent doctor blade cutting process, maintaining the adjusted state, thereby ensuring that the doctor blade can cut according to the predetermined precise size.

[0036] Working Principle: First, the material to be cut is placed between the baffles 12. Then, the electric push rod 10 is activated to move the push plate 11. As the push plate 11 moves, the material to be cut is aligned with the positioning plate 3. Next, the hydraulic rod 14 is activated to move the cutting blade 15. As the cutting blade 15 moves, it cuts the printing squeegee. The movement of the cutting blade 15 causes the limiting rod 16 to slide inside the support frame 13, improving the stability of the cutting blade 15. When adjustment is needed, the pull rod 5 is pulled out of the fixing hole 8. Then, the connecting frame 4 is pulled to move the slide table 2. As the slide table 2 moves, the positioning plate 3 moves, adjusting its length. This allows for precise adjustment of the squeegee cutting length according to different printing tasks and plate specifications, ensuring that the cut squeegee size matches the required height and avoiding installation problems due to dimensional deviations. When problems arise and printing quality deteriorates, the pull rod 5 is released when adjusted to the appropriate position. When the pull rod 5 is released, the spring 7 will spring the pull rod 5, causing it to be inserted into the fixing hole 8 for fixation. When material needs to be fed, the motor 20 is started, causing its drive end to rotate, which in turn drives the take-up roller 21 to rotate. When the take-up roller 21 rotates, it drives the steel cable 22 to retract. When the steel cable 22 is retracted, it drives the feeding block 17 to move. When the feeding block 17 moves, it drives the printing doctor blade to feed material, thus automatically conveying the cut doctor blade to the designated position after the doctor blade is cut, eliminating the need for manual handling, reducing manual operation time and labor intensity, and improving overall production efficiency. When the feeding block 17 needs to be reset, the motor 20 is started, causing the take-up roller 21 to release the steel cable 22. When the steel cable 22 is released, the tension spring 18 will pull the feeding block 17, and the feeding block 17 will reset when pulled.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic alignment and adjustment device for cutting gravure printing squeegees, characterized in that, include: The processing table (1), which serves as the main support, has a slide table (2) slidably connected to its inner wall. A positioning plate (3) is fixedly connected to the top of the slide table (2). A connecting frame (4) is fixedly connected to each opposite end of the slide table (2). A pull rod (5) is slidably connected to the inner wall of each connecting frame (4). A limit plate (6) is fixedly connected to the outer wall of each pull rod (5). A spring (7) is provided between the limit plate (6) and the inner wall of the connecting frame (4). 1) has baffles (12) fixedly connected to both sides of the top end. A push plate (11) is slidably connected to the inner wall of the baffle (12). A drive assembly is provided at the right end of the push plate (11). A support frame (13) is fixedly connected to the top end of the processing table (1). A hydraulic rod (14) is fixedly connected to the top end of the support frame (13). The drive end of the hydraulic rod (14) passes through the support frame (13) and is fixedly connected to a cutting blade (15). A feeding assembly is provided on the inner wall of the processing table (1).

2. The automatic alignment and adjustment device for cutting gravure printing squeegees according to claim 1, characterized in that: One end of each spring (7) is connected to the limiting plate (6), and the other end of each spring (7) is connected to the inner wall of the connecting frame (4).

3. The automatic alignment and adjustment device for cutting gravure printing squeegees according to claim 1, characterized in that: The inner wall of the processing table (1) is provided with multiple fixing holes (8) corresponding to the tie rod (5), and the outer wall of the limiting plate (6) is slidably connected to the inner wall of the connecting frame (4).

4. The automatic alignment and adjustment device for cutting gravure printing squeegees according to claim 1, characterized in that: The drive assembly includes a fixed plate (9) fixedly connected to both sides of the top of the processing table (1). An electric push rod (10) is fixedly connected to the inner wall of the fixed plate (9). The drive end of the electric push rod (10) passes through the fixed plate (9) and is fixedly connected to the right end of the push plate (11).

5. The automatic alignment and adjustment device for cutting gravure printing squeegees according to claim 1, characterized in that: Limiting rods (16) are fixedly connected to both sides of the top end of the cutting blade (15), and the outer wall of the limiting rods (16) is slidably connected to the inner wall of the support frame (13).

6. The automatic alignment and adjustment device for cutting gravure printing squeegees according to claim 1, characterized in that: The feeding assembly includes a feeding block (17) slidably connected to the inner wall of the processing table (1). A tension spring (18) is provided between the feeding block (17) and the processing table (1). A fixed frame (19) is fixedly connected to the front end of the processing table (1). A motor (20) is fixedly connected to the left end of the fixed frame (19). The drive end of the motor (20) passes through the fixed frame (19) and is fixedly connected to a winding roller (21). A steel cable (22) is fixedly connected to the outer wall of the winding roller (21). The rear end of the steel cable (22) is fixedly connected to the front end of the feeding block (17).

7. The automatic alignment and adjustment device for cutting gravure printing squeegees according to claim 6, characterized in that: One end of the tension spring (18) is connected to the unloading block (17), and the other end of the tension spring (18) is connected to the inner wall of the processing table (1).

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