Clamping mechanism for packaging bottle cap screen printing machine

Abstract

The utility model discloses a clamping mechanism for a packaging bottle cap screen printing machine, and relates to the technical field of screen printing, the clamping mechanism for the packaging bottle cap screen printing machine comprises a bottom plate, first hydraulic cylinders are installed on the periphery of the top of the bottom plate, and a workbench is installed on the tops of the first hydraulic cylinders; a cross-shaped groove is formed in the top of the workbench, a fixing block is installed in the center of the interior of the cross-shaped groove, a built-in groove is formed in the fixing block, a connecting pipe is installed at the top of the fixing block, a suction cup is installed at the top of the connecting pipe, and second hydraulic cylinders are installed on the periphery of the outer wall of the connecting pipe. According to the scheme, the problem that in the using process of an existing screen printing machine, due to the fact that the size of an installation table is limited, the installation table cannot adapt to bottle caps of different sizes is solved.

Description

Technical Field

[0001] This utility model relates to the field of screen printing technology, specifically a clamping mechanism for a screen printing machine for packaging bottle caps. Background Technology

[0002] With the increasing variety of cosmetic packaging bottles, it is common practice to print patterns or text on the bottle body and cap to achieve both advertising and aesthetic purposes, in order to serve both a distinctive and visually appealing function. Screen printing machines are typically used to print patterns or text on the bottle caps.

[0003] As described in publication number CN218928912U, a screen printing machine includes a worktable and a support frame disposed on the upper surface of the worktable. A screen printing plate is mounted on the support frame, and a squeegee is movably mounted on the screen printing plate. A drive assembly for driving the squeegee to perform printing is provided on the worktable. A support platform for carrying the product to be printed is also provided on the worktable, and a lifting assembly for moving the support platform closer to or away from the screen printing plate is provided on the worktable. This application improves the overall operational stability of the printing machine.

[0004] The above-mentioned device cannot accommodate bottle caps of different sizes due to the limited size of the mounting platform. Therefore, we propose a clamping mechanism for a bottle cap screen printing machine to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a clamping mechanism for a screen printing machine for bottle caps of packaging bottles, so as to solve the problem mentioned in the background art that the existing screen printing machine cannot adapt to bottle caps of different sizes due to the size limitation of the mounting table during use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a clamping mechanism for a screen printing machine for packaging bottle caps, comprising a base plate, a first hydraulic cylinder mounted around the top of the base plate, a worktable mounted on the top of the first hydraulic cylinder, a cross-shaped groove provided on the top of the worktable, a fixing block mounted at the center of the cross-shaped groove, an internal groove provided inside the fixing block, a connecting pipe mounted on the top of the fixing block, a suction cup mounted on the top of the connecting pipe, a second hydraulic cylinder mounted around the outer wall of the connecting pipe, and a suction cup mounted on the other end of the second hydraulic cylinder. The inner clamping plate has two bidirectional threaded rods installed inside the cross-shaped groove. Both ends of the outer walls of the two bidirectional threaded rods are threaded to a first slider. An outer clamping plate is installed on the top of the first slider. A first drive motor is installed at one end of the bidirectional threaded rod through the worktable. A vertical plate is installed on the left side of the top of the base plate. A screen printing stencil is installed in the middle of the right side of the vertical plate. A moving component is installed on the upper part of the right side of the vertical plate. A connecting plate is installed at the bottom of the moving component. Multiple sets of third hydraulic cylinders are installed at the bottom of the connecting plate. A screen printing scraper is installed at the bottom of the third hydraulic cylinder.

[0007] Preferably, the moving component includes an inverted U-shaped frame, a lead screw is installed inside the inverted U-shaped frame, a second slider is threaded to the outer wall of the lead screw, a second drive motor is installed on one side of the lead screw through the inverted U-shaped frame, and the connecting plate is installed at the bottom of the second slider.

[0008] Preferably, rubber pads are installed on both the outer side wall of the inner clamping plate and the inner side wall of the outer clamping plate.

[0009] Preferably, the two bidirectional threaded rods are arranged in a cross shape and pass through the fixing block, and a sealing gasket is installed at the movable connection between the bidirectional threaded rods and the fixing block.

[0010] Preferably, a vacuum pump is installed at the bottom of the workbench, and the vacuum pump is connected to the built-in slot through a gas supply pipe.

[0011] Preferably, the top of the suction cup and the top of the inner clamping plate are on the same horizontal plane.

[0012] Preferably, a sliding rod is installed inside the inverted U-shaped frame, and the second slider is slidably connected to the sliding rod.

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

[0014] This invention utilizes a vacuum pump, an internal groove, a connecting pipe, and an air supply pipe to create an adsorption force in the suction cup, thereby securing the bottle cap. A sealing gasket fills the gap between the bidirectional threaded rod and the fixing block, ensuring a tight seal and preventing air leakage that could affect the suction force on the bottle cap, thus improving its stability. A second hydraulic cylinder moves the inner clamping plate to fit against the inner wall of the bottle cap, clamping and securing it from the inside. A first drive motor rotates the bidirectional threaded rod, moving the first slider towards the fixing block, causing the outer clamping plate to fit against the outer wall of the bottle cap, securing it from the outside. Rubber pads provide cushioning to the sidewalls of the bottle cap, effectively preventing deformation. This invention solves the problem of existing screen printing machines being unable to accommodate bottle caps of different sizes due to the limited size of the mounting platform. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 3 This is a top cross-sectional view of the present invention.

[0018] Figure 4 This is a front cross-sectional view of the present invention.

[0019] In the diagram: 1. Base plate; 2. First hydraulic cylinder; 3. Worktable; 4. Cross-shaped groove; 5. Fixing block; 6. Internal groove; 7. Connecting pipe; 8. Suction cup; 9. Second hydraulic cylinder; 10. Inner clamping plate; 11. Bidirectional threaded rod; 12. First slider; 13. Outer clamping plate; 14. First drive motor; 15. Rubber pad; 16. Sealing gasket; 17. Vacuum pump; 18. Gas supply pipe; 19. Vertical plate; 20. Screen printing stencil; 21. Inverted U-shaped frame; 22. Lead screw; 23. Second slider; 24. Second drive motor; 25. Slide rod; 26. Connecting plate; 27. Third hydraulic cylinder; 28. Screen printing squeegee. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figure 1-4This utility model provides an embodiment of a clamping mechanism for a bottle cap screen printing machine, comprising a base plate 1, with first hydraulic cylinders 2 installed around the top perimeter of the base plate 1, a worktable 3 installed on the top of the first hydraulic cylinders 2, a cross-shaped groove 4 on the top of the worktable 3, a fixing block 5 installed at the center of the cross-shaped groove 4, an internal groove 6 inside the fixing block 5, a vacuum pump 17 installed at the bottom of the worktable 3, the vacuum pump 17 communicating with the internal groove 6 through an air supply pipe 18, a connecting pipe 7 installed on the top of the fixing block 5, and a suction cup 8 installed on the top of the connecting pipe 7. When the inner top of the bottle cap is placed above the suction cup 8, the vacuum pump 17, through the combined action of the internal groove 6, the connecting pipe 7, and the air supply pipe 18, can cause the suction cup 8 to generate an adsorption force. This allows for the fixation of the bottle cap. A second hydraulic cylinder 9 is installed around the outer wall of the connecting tube 7. An inner clamping plate 10 is installed at the other end of the second hydraulic cylinder 9. The second hydraulic cylinder 9 drives the inner clamping plate 10 to move and fit against the inner wall of the bottle cap, thus clamping and fixing the bottle cap from the inside. Two bidirectional threaded rods 11 are installed inside the cross-shaped groove 4. These two bidirectional threaded rods 11 are distributed in a cross shape and penetrate the fixing block 5. A sealing gasket 16 is installed at the movable connection between the bidirectional threaded rods 11 and the fixing block 5. The sealing gasket 16 fills the gap at the connection between the bidirectional threaded rods 11 and the fixing block 5, ensuring a tight seal. This prevents air leakage from the suction cup 8, which would affect the suction force on the bottle cap, thus improving the stability of the bottle cap. The outer walls of the two bidirectional threaded rods 11... Both ends are threaded with a first slider 12. An outer clamping plate 13 is installed on the top of the first slider 12. Rubber pads 15 are installed on the outer side wall of the inner clamping plate 10 and the inner side wall of the outer clamping plate 13. One end of the bidirectional threaded rod 11 is connected to a first drive motor 14 via the worktable 3. The first drive motor 14 drives the bidirectional threaded rod 11 to rotate, causing the first slider 12 to move towards the fixed block 5, thereby causing the outer clamping plate 13 to fit against the outer wall of the bottle cap. The bottle cap can be fixed from the outside. The rubber pads 15 can provide cushioning for the side wall of the bottle cap, effectively preventing the bottle cap from deforming. A vertical plate 19 is installed on the left side of the top of the base plate 1. A screen printing plate 20 is installed in the middle of the right side of the vertical plate 19. A moving component is installed on the upper right side of the vertical plate 19. The system includes an inverted U-shaped frame 21, inside which a lead screw 22 is installed. A second slider 23 is threadedly connected to the outer wall of the lead screw 22. A second drive motor 24 is mounted on one side of the lead screw 22 via the inverted U-shaped frame 21. A connecting plate 26 is mounted on the bottom of the second slider 23. A connecting plate 26 is also mounted on the bottom of the moving assembly. Multiple sets of third hydraulic cylinders 27 are mounted on the bottom of the connecting plate 26. A screen printing squeegee 28 is mounted on the bottom of the third hydraulic cylinder 27. The first hydraulic cylinder 2 drives the worktable 3 to rise until the top of the bottle cap contacts the screen printing plate 20. The second drive motor 24 drives the lead screw 22 to rotate, causing the second slider 23 to move left and right. The connecting plate 26 connects the two components, allowing the screen printing squeegee 28 to move, thus enabling screen printing on the bottle cap.The height of the screen printing squeegee 28 is adjusted by the third hydraulic cylinder 27. By properly adjusting the height of the screen printing squeegee 28, it is possible to ensure that the ink is evenly distributed on the printing screen 20, thereby obtaining a clear printed pattern.

[0022] Please see Figure 4 The top of the suction cup 8 is on the same horizontal plane as the top of the inner clamping plate 10, which keeps the bottle cap horizontal at all times and ensures the quality of the screen printing of the bottle cap by the device.

[0023] Please see Figure 2 The inverted U-shaped frame 21 has a sliding rod 25 installed inside. The second slider 23 is slidably connected to the sliding rod 25. The sliding rod 25 can improve the stability of the second slider 23 and prevent the second slider 23 from shifting at an angle, which would affect the stability of the screen printing squeegee 28 and improve the screen printing quality of the bottle cap.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A clamping mechanism for a screen printing machine for bottle caps, comprising a base plate (1), characterized in that: A first hydraulic cylinder (2) is installed around the top of the base plate (1). A worktable (3) is installed on the top of the first hydraulic cylinder (2). A cross-shaped groove (4) is provided on the top of the worktable (3). A fixing block (5) is installed at the center of the cross-shaped groove (4). An internal groove (6) is provided inside the fixing block (5). A connecting pipe (7) is installed on the top of the fixing block (5). A suction cup (8) is installed on the top of the connecting pipe (7). A second hydraulic cylinder (9) is installed around the outer wall of the connecting pipe (7). An inner clamping plate (10) is installed at the other end of the second hydraulic cylinder (9). Two bidirectional threaded rods (11) are installed inside the cross-shaped groove (4). Both ends of the outer walls of the two bidirectional threaded rods (11) are threadedly connected to the first sliders (12). The top of the first sliders (12) is equipped with an outer clamping plate (13). One end of the bidirectional threaded rods (11) is equipped with a first drive motor (14) through the worktable (3). A vertical plate (19) is installed on the left side of the top of the base plate (1). A screen printing plate (20) is installed in the middle of the right side of the vertical plate (19). A moving component is installed on the upper right side of the vertical plate (19). A connecting plate (26) is installed at the bottom of the moving component. Multiple sets of third hydraulic cylinders (27) are installed at the bottom of the connecting plate (26). A screen printing scraper (28) is installed at the bottom of the third hydraulic cylinder (27).

2. The clamping mechanism for a screen printing machine for bottle caps of packaging bottles according to claim 1, characterized in that: The moving component includes an inverted U-shaped frame (21), inside which a lead screw (22) is installed. A second slider (23) is threadedly connected to the outer wall of the lead screw (22). A second drive motor (24) is installed on one side of the lead screw (22) through the inverted U-shaped frame (21). The connecting plate (26) is installed at the bottom of the second slider (23).

3. The clamping mechanism for a screen printing machine for bottle caps of packaging bottles according to claim 1, characterized in that: Rubber pads (15) are installed on the outer side wall of the inner clamping plate (10) and the inner side wall of the outer clamping plate (13).

4. The clamping mechanism for a screen printing machine for bottle caps of packaging bottles according to claim 1, characterized in that: The two bidirectional threaded rods (11) are arranged in a cross shape and pass through the fixing block (5). A sealing gasket (16) is installed at the movable connection between the bidirectional threaded rods (11) and the fixing block (5).

5. The clamping mechanism for a screen printing machine for bottle caps of packaging bottles according to claim 1, characterized in that: A vacuum pump (17) is installed at the bottom of the workbench (3), and the vacuum pump (17) is connected to the built-in slot (6) through a gas supply pipe (18).

6. The clamping mechanism for a screen printing machine for bottle caps of packaging bottles according to claim 1, characterized in that: The top of the suction cup (8) and the top of the inner clamping plate (10) are on the same horizontal plane.

7. The clamping mechanism for a screen printing machine for bottle caps of packaging bottles according to claim 2, characterized in that: The inverted U-shaped frame (21) has a slide rod (25) installed inside, and the second slider (23) is slidably connected to the slide rod (25).

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