Printing device capable of automatically adjusting printing pressure

Abstract

The utility model discloses a printing device capable of automatically adjusting printing pressure, which comprises an upper printing roller, a lower printing roller component is arranged at the lower end of the upper printing roller, a conveying component is arranged on the outer surface of the lower end of the lower printing roller component, and a fixing frame is arranged at the upper end of the upper printing roller. An adjusting mechanism is arranged between the fixing frame and the upper printing roller and comprises a U-shaped frame, a connecting plate, an air cylinder, a lifting groove, a rotating shaft, a sliding block, a sliding groove, a limiting block, a fixing plate, a mounting plate, a fixing bolt and a pressure sensor, and the air cylinder is located in the middle of the outer surface of the upper end of the fixing frame. According to the printing device with the printing pressure capable of being automatically adjusted, the printing pressure can be adjusted, the connecting plate can be conveniently driven to stably ascend and descend, the upper printing roller can be conveniently mounted and dismounted, upper printing rollers of different structures can be conveniently replaced for use according to needs, operation is easy, and better use prospects are brought.

Description

Technical Field

[0001] This utility model relates to the printing field, specifically to a printing device with automatically adjustable printing pressure. Background Technology

[0002] With the advancement of screen printing technology, the market demand for screen printing has grown rapidly. The printing speed and quality of screen printing machines have become key concerns. Modern screen printing machines generally consist of mechanisms for plate mounting, inking, printing, and paper feeding. Their working principle is as follows: first, the text and images to be printed are made into a printing plate, which is then mounted on the printing machine. Ink is then applied manually or by the machine to the areas with text and images on the printing plate, and then directly or indirectly transferred to paper or other substrates, thus reproducing a printed product identical to the printing plate. Current printing methods require manual adjustment, which is cumbersome. Furthermore, different upper printing rollers with different structures are needed depending on the text and images being printed, making quick replacement inconvenient and negatively impacting user experience. Therefore, we propose a printing device with automatically adjustable printing pressure. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a printing device with automatically adjustable printing pressure. It features adjustable printing pressure, easy smooth lifting and lowering of the connecting plate, convenient installation and removal of the upper printing roller, easy replacement of upper printing rollers with different structures as needed, and simple operation. It can effectively solve the problems in the background technology.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a printing device with automatically adjustable printing pressure, including an upper printing roller, a lower printing roller assembly at the lower end of the upper printing roller, a conveying assembly on the lower outer surface of the lower printing roller assembly, a fixed frame at the upper end of the upper printing roller, and an adjustment mechanism between the fixed frame and the upper printing roller. The adjustment mechanism includes a U-shaped frame, a connecting plate, a cylinder, a lifting groove, a rotating shaft, a slider, a sliding groove, a limiting block, a fixed plate, a mounting plate, fixing bolts, and a pressure sensor. The cylinder is located in the middle of the upper outer surface of the fixed frame, the pressure sensor is located at the lower end of the cylinder, the connecting plate is located at the lower end of the pressure sensor, two sets of limiting blocks are respectively fixedly installed on the two outer surfaces of the connecting plate, two sets of fixed plates are respectively located on both sides of the lower outer surface of the connecting plate, and the sliding groove is opened on one outer surface of the fixed plate.

[0007] Preferably, the two sets of lifting grooves are respectively opened at the upper end of the inner surface of both sides of the fixed frame, the U-shaped frame is located at the lower end of the connecting plate, and the two sets of sliders are respectively located on the outer surface of both sides of the U-shaped frame.

[0008] Preferably, the rotating shaft is located in the middle of the U-shaped frame, the upper printing roller is located on the outer wall of the rotating shaft, the two sets of mounting plates are respectively located at the upper ends of the two sides of the outer surface of the front end of the U-shaped frame, and the fixing bolts are located on the outer surface of the front end of the mounting plates.

[0009] Preferably, the limiting block and the lifting groove are slidably connected, the slider and the sliding groove are slidably connected, and a sealed bearing is provided between the rotating shaft and the U-shaped frame, and the rotating shaft is rotatably connected to the U-shaped frame through the sealed bearing.

[0010] Preferably, threaded grooves are provided on both sides of the outer surface of the front end of the connecting plate, and the fixing bolt is threadedly connected to the threaded groove.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, this utility model provides a printing device with automatically adjustable printing pressure, which has the following beneficial effects:

[0013] 1. This printing device with automatically adjustable printing pressure can adjust the printing pressure to facilitate the smooth lifting and lowering of the connecting plate.

[0014] 2. This printing device with automatically adjustable printing pressure allows for easy installation and removal of the upper printing roller, facilitating the replacement of upper printing rollers with different structures as needed, and is simple to operate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a printing device with automatically adjustable printing pressure according to this utility model.

[0016] Figure 2 This is a frontal sectional view of a printing device with automatically adjustable printing pressure according to the present invention.

[0017] Figure 3 This is a front sectional view of a partial structure in a printing device with automatically adjustable printing pressure according to this utility model.

[0018] Figure 4 This is a structural diagram of the connecting plate in a printing device with automatically adjustable printing pressure according to this utility model.

[0019] In the diagram: 1. Upper printing roller; 2. Lower printing roller assembly; 3. Fixing frame; 4. Conveying assembly; 5. Adjusting mechanism; 6. U-shaped frame; 7. Connecting plate; 8. Cylinder; 9. Lifting groove; 10. Rotating shaft; 11. Sliding block; 12. Slide groove; 13. Limiting block; 14. Fixing plate; 15. Mounting plate; 16. Fixing bolt; 17. Pressure sensor. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] This embodiment is a printing device with automatically adjustable printing pressure.

[0022] like Figure 1-4 As shown, the assembly includes an upper printing roller 1, a lower printing roller assembly 2 at the lower end of the upper printing roller 1, a conveying assembly 4 on the lower outer surface of the lower printing roller assembly 2, a fixed frame 3 at the upper end of the upper printing roller 1, and an adjustment mechanism 5 between the fixed frame 3 and the upper printing roller 1. The adjustment mechanism 5 includes a U-shaped frame 6, a connecting plate 7, a cylinder 8, a lifting groove 9, a rotating shaft 10, a slider 11, a sliding groove 12, a limiting block 13, a fixed plate 14, a mounting plate 15, a fixing bolt 16, and a pressure sensor 17. The cylinder 8 is located in the middle of the upper outer surface of the fixed frame 3, the pressure sensor 17 is located at the lower end of the cylinder 8, the connecting plate 7 is located at the lower end of the pressure sensor 17, two sets of limiting blocks 13 are fixedly installed on the two outer surfaces of the connecting plate 7, two sets of fixed plates 14 are located on the two sides of the lower outer surface of the connecting plate 7, and the sliding groove 12 is opened on one outer surface of the fixed plate 14.

[0023] Two sets of lifting grooves 9 are respectively opened on the upper ends of the inner surfaces of both sides of the fixed frame 3. The U-shaped frame 6 is located at the lower end of the connecting plate 7. Two sets of sliders 11 are respectively located on the outer surfaces of both sides of the U-shaped frame 6. The rotating shaft 10 is located in the middle of the U-shaped frame 6. The upper printing roller 1 is located on the outer wall of the rotating shaft 10. Two sets of mounting plates 15 are respectively located on the upper ends of both sides of the outer surface of the front end of the U-shaped frame 6. The fixing bolt 16 is located on the outer surface of the front end of the mounting plate 15. The limiting block 13 is slidably connected to the lifting groove 9. The slider 11 is slidably connected to the sliding groove 12. A sealed bearing is provided between the rotating shaft 10 and the U-shaped frame 6. The rotating shaft 10 is rotatably connected to the U-shaped frame 6 through the sealed bearing. Threaded grooves are opened on both sides of the outer surface of the front end of the connecting plate 7. The fixing bolt 16 is threadedly connected to the threaded groove.

[0024] It should be noted that this utility model is a printing device with automatically adjustable printing pressure. By starting the cylinder 8, the connecting plate 7 is raised and lowered, and the limiting block 13 is raised and lowered along the lifting groove 9. The height of the upper printing roller 1 is adjusted, and the printing pressure can be adjusted. This facilitates the smooth raising and lowering of the connecting plate 7. The pressure sensor 17 can detect the pressure value, which can be viewed by the operator through an external display. When the upper printing roller 1 needs to be replaced, the fixing bolt 16 is rotated. After the fixing bolt 16 is rotated into the threaded groove, the mounting plate 15 is separated from the connecting plate 7. Then, the U-shaped frame 6 is pulled to drive the slider 11 to slide along the sliding groove 12, and the upper printing roller 1 can be removed for replacement. This device allows for easy installation and removal of the upper printing roller 1, and facilitates the replacement of upper printing rollers 1 with different structures as needed. The operation is simple.

[0025] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., 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.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A printing apparatus with automatically adjustable printing pressure, comprising an upper printing roller (1), characterized in that: The lower end of the upper printing roller (1) is provided with a lower printing roller assembly (2), and the lower outer surface of the lower printing roller assembly (2) is provided with a conveying assembly (4). The upper end of the upper printing roller (1) is provided with a fixing frame (3), and an adjustment mechanism (5) is provided between the fixing frame (3) and the upper printing roller (1). The adjustment mechanism (5) includes a U-shaped frame (6), a connecting plate (7), a cylinder (8), a lifting groove (9), a rotating shaft (10), a slider (11), a slide groove (12), a limit block (13), a fixing plate (14), and a mounting plate. Mounting plate (15), fixing bolts (16) and pressure sensor (17), the cylinder (8) is located in the middle of the upper outer surface of the fixing frame (3), the pressure sensor (17) is located at the lower end of the cylinder (8), the connecting plate (7) is located at the lower end of the pressure sensor (17), two sets of limiting blocks (13) are respectively fixedly installed on the outer surfaces of both sides of the connecting plate (7), two sets of fixing plates (14) are respectively located on both sides of the lower outer surface of the connecting plate (7), and the sliding groove (12) is opened on one side of the outer surface of the fixing plate (14).

2. A printing apparatus according to claim 1, wherein: The two sets of lifting grooves (9) are respectively opened on the upper end of the inner surface of the two sides of the fixed frame (3), the U-shaped frame (6) is located at the lower end of the connecting plate (7), and the two sets of sliders (11) are respectively located on the outer surface of the two sides of the U-shaped frame (6).

3. A printing apparatus according to claim 2, wherein: The rotating shaft (10) is located in the middle of the U-shaped frame (6), the upper printing roller (1) is located on the outer wall of the rotating shaft (10), the two sets of mounting plates (15) are located on the upper ends of the front outer surface of the U-shaped frame (6), and the fixing bolt (16) is located on the front outer surface of the mounting plate (15).

4. A printing apparatus according to claim 3, wherein: The limiting block (13) and the lifting groove (9) are slidably connected, the slider (11) and the sliding groove (12) are slidably connected, and a sealed bearing is provided between the rotating shaft (10) and the U-shaped frame (6). The rotating shaft (10) is rotatably connected to the U-shaped frame (6) through the sealed bearing.

5. A printing apparatus according to claim 4, wherein: The connecting plate (7) has threaded grooves on both sides of its front outer surface, and the fixing bolt (16) is threaded to the threaded grooves.

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