A compression roller mechanism for a carton printing machine

Abstract

The utility model relates to the technical fields of carton printing machine, especially to a pressing roller mechanism of carton printing machine, which is provided with a bidirectional thread screw rod, avoids the change of the pressing roller distance caused by the non-external force rotation, and improves the reliability, comprising an environment-friendly printing machine body, the environment-friendly printing machine body top end both sides are connected with the inner slide frame bottom end left and right sides through the support, the inner slide frame is rotationally provided with a bidirectional thread screw rod, the left side of the bidirectional thread screw rod is projected on the left side of the inner slide frame, and the side of the bidirectional thread screw rod is connected with the middle part of the inner side of the screw disc, two groups of inner thread horizontal shift sliding blocks are symmetrically arranged in the inner side of the inner slide frame, the inner side of the middle part of each group of inner slide frames is respectively screw-connected with the corresponding position of the bidirectional thread screw rod, the left side of the bidirectional thread screw rod in the inner slide frame is connected with the middle part of the inner side of the anti-skid external contact sleeve, the bottom side of each group of inner thread horizontal shift sliding blocks is respectively connected with the top side of the shaft support through the connecting structure and the mounting structure, and the shaft support is rotationally provided with a pressing roller.

Description

Technical Field

[0001] This utility model relates to the technical field of carton printing machines, specifically to a pressure roller mechanism for a carton printing machine. Background Technology

[0002] A carton printing machine is a specialized piece of equipment that prints text, patterns, and information onto the surface of a carton. It primarily achieves its printing function through processes such as plate mounting, inking, printing, and paper feeding. Its applications span industries including packaging and logistics, and its core components include the printing table, inking rollers, and conveyor belt.

[0003] An existing paper box environmentally friendly printing machine, such as the one with patent publication number CN222554524U, uses pressure rollers to limit and guide the cardboard transported on the conveyor belt during the drying process and provide appropriate pressure. By threading the pressure rollers onto screws with different directions of rotation, the two pressure rollers can move in opposite directions or away from each other, thus making it suitable for cardboard of different widths and sizes.

[0004] However, because the screw setting of the device is not stable, its movement may cause changes in the distance between the two sets of pressure rollers, thus failing to ensure the limit and resulting in poor reliability. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a pressure roller mechanism for a carton printing machine that features a bidirectional threaded screw that can provide support, preventing changes in the pressure roller spacing caused by non-external force rotation and thus improving reliability.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a pressure roller mechanism for a carton printing machine, comprising an environmentally friendly printing machine body, and further comprising a support, an inner slide, a bidirectional threaded screw, a screw plate, an internally threaded transverse sliding block, an anti-slip outer contact sleeve, a top frame, a connecting spring, an anti-slip contact plate, a shaft frame, and a pressure roller. The top two sides of the environmentally friendly printing machine body are connected to the left and right sides of the bottom of the inner slide via the support. A bidirectional threaded screw is rotatably arranged inside the inner slide, with the left side of the bidirectional threaded screw protruding from the left side of the inner slide, and this side of the bidirectional threaded screw contacting the screw plate. The two sets of internally threaded transverse sliding sliders are symmetrically slidably arranged inside the inner slide. The inner side of the middle of each set of inner slides is screwed and movably connected to the corresponding position of the bidirectional threaded screw. The outer left side of the bidirectional threaded screw inside the inner slide is connected to the inner side of the middle of the anti-slip outer contact sleeve. The left side of the top of the inner slide is connected to the bottom side of the top frame. The top of the inside of the top frame is connected to the top side of the anti-slip contact plate via a connecting spring. The bottom side of each set of internally threaded transverse sliding sliders is connected to the top side of the shaft frame via a connecting structure and an installation structure. A pressure roller is rotatably installed inside the shaft frame.

[0009] Preferably, it also includes an inner sliding sleeve, a sliding rod, and a pull tab. The inner side of the top of the top frame is connected to the outer side of the inner sliding sleeve. The inner wall of the inner sliding sleeve is slidably connected to the outer wall of the sliding rod. The top of the sliding rod is connected to the middle of the bottom side of the pull tab. The bottom of the sliding rod is connected to the middle of the top side of the anti-slip contact plate.

[0010] Preferably, the mounting structure includes a mounting sleeve, a mounting insert, bolts, and nuts. The top side of the shaft bracket is connected to the bottom side of the mounting insert. The outer side of the mounting insert is detachably inserted into the inner side of the mounting sleeve. The bolts pass through the inner holes of the mounting sleeve and the mounting insert simultaneously and are screwed in by nuts on the protruding side.

[0011] Preferably, the connection structure includes a telescopic tube, a telescopic rod, and a second connecting spring. The middle part of the bottom side of each set of internally threaded transverse sliding sliders is connected to the top of a set of telescopic tubes. The inner wall of the telescopic tube is vertically slidably connected to the outer wall of the telescopic rod. The bottom end of the telescopic rod is connected to the middle part of the top of the mounting sleeve. The outer side of the telescopic tube at the bottom end of the internally threaded transverse sliding slider is connected to the outer side of the telescopic rod at the top of the mounting sleeve by a second connecting spring.

[0012] Preferably, it also includes a handle, with the outer middle part of each set of mounting sleeves connected to the inner side of a set of handles.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention provides a pressure roller mechanism for a carton printing machine, which has the following advantages:

[0015] When the anti-slip contact plate is in the loosened state of the anti-slip outer contact sleeve, the screw can be turned to rotate the bidirectional threaded screw. The bidirectional threaded screw is screwed into the internal threaded transverse sliding slider, so that the two sets of internal threaded transverse sliding sliders move synchronously towards or away from each other in the inner slide frame to adapt to the width of the cardboard. After the adjustment is completed, the anti-slip contact plate is pressed against the outside of the anti-slip outer contact sleeve by the elastic action of the connecting spring under the top frame connection, preventing the bidirectional threaded screw from rotating and fixing the position of the two sets of internal threaded transverse sliding sliders. Then, during the printing and transportation of the cardboard in the environmentally friendly printing machine, it is constrained by the rotation of the pressure rollers in the two sets of shaft frames. It is equipped with a support for the bidirectional threaded screw to avoid changes in the pressure roller spacing caused by non-external force rotation, thereby improving reliability. Attached Figure Description

[0016] Figure 1 This is an axial view of the structural schematic diagram of this utility model;

[0017] Figure 2 This utility model Figure 1 A magnified view;

[0018] Figure 3 This utility model Figure 1 A magnified view of B;

[0019] Figure 4This utility model Figure 1 Front view.

[0020] The attached diagram shows the following components: 1. Environmentally friendly printing machine body; 2. Support frame; 3. Inner slide; 4. Two-way threaded screw; 5. Screw plate; 6. Internal threaded transverse slide block; 7. Anti-slip outer contact sleeve; 8. Top frame; 9. Connecting spring one; 10. Anti-slip contact plate; 11. Shaft frame; 12. Pressure roller; 13. Inner slide sleeve; 14. Slide rod; 15. Pull plate; 16. Telescopic tube; 17. Telescopic rod; 18. Connecting spring two; 19. Mounting sleeve; 20. Mounting insert; 21. Bolt; 22. Nut; 23. Handle plate. Detailed Implementation

[0021] 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.

[0022] Example

[0023] Please see Figure 1-4A pressure roller mechanism for a carton printing machine includes an environmentally friendly printing machine body 1, a support 2, an inner slide 3, a bidirectional threaded screw 4, a screw plate 5, an internally threaded transverse sliding block 6, an anti-slip outer contact sleeve 7, a top frame 8, a connecting spring 9, an anti-slip contact plate 10, a shaft frame 11, and a pressure roller 12. The top two sides of the environmentally friendly printing machine body 1 are connected to the bottom left and right sides of the inner slide 3 via the support 2. A bidirectional threaded screw 4 is rotatably installed inside the inner slide 3. The left side of the bidirectional threaded screw 4 protrudes from the left side of the inner slide 3, and this side of the bidirectional threaded screw 4 is connected to the middle of the inner side of the screw plate 5. Two sets of internally threaded transverse sliding blocks 6 are symmetrically slidably installed inside the inner slide 3. The inner side of the middle of each set of inner slide 3 is screwed and movably connected to the corresponding position of the bidirectional threaded screw 4. The outer left side of the bidirectional threaded screw 4 inside the inner slide 3 is connected to the inner side of the middle of the anti-slip outer contact sleeve 7. The left side of the top of the inner slide 3 is connected to the bottom side of the top frame 8. The top of the top frame 8 is connected to the top side of the anti-slip contact plate 10 via a connecting spring 9. The bottom side of each set of internal thread transverse sliders 6 is connected to the top side of the shaft frame 11 via a connecting structure and an installation structure. A pressure roller 12 is rotatably installed inside the shaft frame 11. When the anti-slip contact plate 10 is in the loosened state against the anti-slip outer contact sleeve 7, the screw plate 5 can be turned to rotate the bidirectional threaded screw 4. The bidirectional threaded screw 4 is screwed into the internal thread transverse slider 6, so that the two sets of internal thread transverse sliders 6 move synchronously towards or away from each other in the inner slide frame 3 to adapt to the width of the cardboard. After the adjustment is completed, the anti-slip contact plate 10 is pressed against the outside of the anti-slip outer contact sleeve 7 by the elastic action of the connecting spring 9 under the connection of the top frame 8, preventing the bidirectional threaded screw 4 from rotating and fixing the position of the two sets of internal thread transverse sliders 6. Then, during the printing and transportation of the cardboard in the environmentally friendly printing machine body 1, the pressure rollers 12 inside the two sets of shaft frames 11 rotate to constrain it.

[0024] It also includes an inner sliding sleeve 13, a sliding rod 14, and a pull tab 15. The inner side of the top of the top frame 8 is connected to the outer side of the inner sliding sleeve 13. The inner wall of the inner sliding sleeve 13 is slidably connected to the outer wall of the sliding rod 14. The top of the sliding rod 14 is connected to the middle of the bottom side of the pull tab 15. The bottom of the sliding rod 14 is connected to the middle of the top side of the anti-slip contact plate 10. By pulling the pull tab 15 upward, the sliding rod 14 can slide upward under the constraint of the inner sliding sleeve 13, causing the anti-slip contact plate 10 to move upward and loosen the anti-slip outer contact sleeve 7, thus improving convenience.

[0025] The mounting structure includes a mounting sleeve 19, a mounting insert 20, a bolt 21, and a nut 22. The top middle of the shaft bracket 11 is connected to the bottom side of the mounting insert 20. The outer side of the mounting insert 20 is detachably inserted into the inner side of the mounting sleeve 19. The bolt 21 passes through the inner holes of the mounting sleeve 19 and the mounting insert 20 simultaneously, and is screwed on the protruding side by the nut 22. The mounting insert 20 is detachably inserted into the mounting sleeve 19. When the mounting insert 20 is installed in the mounting sleeve 19, the bolt 21 can pass through the inner holes of the mounting sleeve 19 and the mounting insert 20 simultaneously, and be screwed on the protruding side by the nut 22, thus fixing the shaft bracket 11 relative to the mounting sleeve 19.

[0026] The connecting structure includes a telescopic tube 16, a telescopic rod 17, and a connecting spring 18. The bottom middle part of each set of internally threaded transverse sliding sliders 6 is connected to the top of a set of telescopic tubes 16. The inner wall of the telescopic tube 16 is vertically slidably connected to the outer wall of the telescopic rod 17. The bottom end of the telescopic rod 17 is connected to the middle of the top of the mounting sleeve 19. The outer side of the telescopic tube 16 at the bottom end of the internally threaded transverse sliding slider 6 is connected to the outer side of the telescopic rod 17 at the top of the mounting sleeve 19 by a connecting spring 18. Through the sliding constraint of the telescopic tube 16 and the telescopic rod 17, the pressure roller 12 can be pushed against the upper side of the cardboard under the elastic action of the connecting spring 18, and can be appropriately compressed by the connecting spring 18 to adapt to the thickness of the cardboard.

[0027] It also includes a handle 23, with the outer middle part of each set of mounting sleeves 19 connected to the inner side of a set of handles 23; by holding the handle 23, the mounting sleeve 19 can be lifted up, making it convenient to install and remove the mounting insert 20 inside the mounting sleeve 19.

[0028] In summary, in the use of the pressure roller mechanism of a carton printing machine, the mounting insert 20 is detachably inserted into the mounting sleeve 19. When the mounting insert 20 is installed in the mounting sleeve 19, the bolt 21 can be simultaneously passed through the inner hole of the mounting sleeve 19 and the mounting insert 20, and screwed on the protruding side by the nut 22, forming a fixation of the shaft frame 11 relative to the mounting sleeve 19. By pulling the pull tab 15 upward, the slide rod 14 can slide upward under the constraint of the inner slide sleeve 13, causing the anti-slip contact plate 10 to move upward, loosening the anti-slip outer contact sleeve 7, and the screw plate 5 can be turned to rotate the bidirectional threaded screw 4. The bidirectional threaded screw 4 is screwed into the internal threaded transverse sliding block 6, so that the two sets of internal threaded transverse sliding blocks 6 move synchronously towards or away from each other in the inner slide frame 3. To accommodate the width of the cardboard, after the screwing adjustment is completed, the anti-slip contact plate 10 is pressed against the outside of the anti-slip outer contact sleeve 7 by the elastic action of the connecting spring 19 under the connection of the top frame 8, preventing the rotation of the bidirectional threaded screw 4 and fixing the position of the two sets of internal threaded transverse sliding sliders 6. Then, during the printing and transport of the cardboard in the environmentally friendly printing machine body 1, the pressure roller 12 is pushed against the upper side of the cardboard by the sliding constraint of the telescopic tube 16 and the telescopic rod 17 under the elastic action of the connecting spring 28, and can be appropriately compressed by the connecting spring 28 to adapt to the thickness of the cardboard. The pressure roller 12 is constrained by the rotation of the two sets of shaft frames 11. In addition, the mounting sleeve 19 can be lifted by the gripping handle 23 to facilitate the installation and removal of the mounting insert 20 in the mounting sleeve 19.

[0029] This environmentally friendly printing press 1 is a commercially available device known to those skilled in the art, and is equipped with a corresponding control system to fulfill its functions. Here, we are simply using it without making any structural or functional improvements, and we will not go into detail about it here.

[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 pressure roller mechanism for a carton printing machine, comprising an environmentally friendly printing machine body (1), characterized in that, It also includes a bracket (2), an inner slide (3), a bidirectional threaded screw (4), a screw plate (5), an inner threaded transverse sliding block (6), an anti-slip outer contact sleeve (7), a top frame (8), a connecting spring (9), an anti-slip contact plate (10), a shaft frame (11), and a pressure roller (12). The top two sides of the environmentally friendly printing machine body (1) are connected to the bottom left and right sides of the inner slide (3) via the bracket (2). A bidirectional threaded screw (4) is rotatably installed inside the inner slide (3). The left side of the bidirectional threaded screw (4) protrudes from the left side of the inner slide (3), and this side of the bidirectional threaded screw (4) is connected to the middle of the inner side of the screw plate (5). Two sets of inner threaded transverse sliding blocks (6) 6) The middle symmetrical sliding arrangement is located inside the inner slide (3). The inner side of the middle part of each set of inner slides (3) is connected to the corresponding position of the bidirectional threaded screw (4). The outer left side of the bidirectional threaded screw (4) inside the inner slide (3) is connected to the inner side of the middle part of the anti-slip outer contact sleeve (7). The left side of the top of the inner slide (3) is connected to the bottom side of the top frame (8). The top of the inside of the top frame (8) is connected to the top side of the anti-slip contact plate (10) via the connecting spring (9). The bottom side of each set of inner threaded transverse sliding sliders (6) is connected to the top side of the shaft frame (11) via the connecting structure and the installation structure. The shaft frame (11) is rotatably equipped with a pressure roller (12).

2. The pressure roller mechanism of a carton printing machine according to claim 1, characterized in that: It also includes an inner sliding sleeve (13), a sliding rod (14) and a pull tab (15). The inner side of the top of the top frame (8) is connected to the outer side of the inner sliding sleeve (13). The inner wall of the inner sliding sleeve (13) is slidably connected to the outer wall of the sliding rod (14). The top of the sliding rod (14) is connected to the middle of the bottom side of the pull tab (15). The bottom of the sliding rod (14) is connected to the middle of the top side of the anti-slip contact plate (10).

3. The pressure roller mechanism of a carton printing machine according to claim 1, characterized in that: The mounting structure includes a mounting sleeve (19), a mounting insert (20), a bolt (21), and a nut (22). The top middle of the shaft bracket (11) is connected to the bottom side of the mounting insert (20). The outer side of the mounting insert (20) is detachably inserted into the inner side of the mounting sleeve (19). The bolt (21) passes through the inner holes of the mounting sleeve (19) and the mounting insert (20) simultaneously, and is screwed on the protruding side by the nut (22).

4. The pressure roller mechanism of a carton printing machine according to claim 3, characterized in that: The connection structure includes a telescopic tube (16), a telescopic rod (17), and a connecting spring (18). The bottom middle part of each set of internal thread transverse sliding sliders (6) is connected to the top of a set of telescopic tubes (16). The inner wall of the telescopic tube (16) is vertically slidably connected to the outer wall of the telescopic rod (17). The bottom end of the telescopic rod (17) is connected to the middle of the top of the mounting sleeve (19). The outer side of the telescopic tube (16) at the bottom end of the internal thread transverse sliding slider (6) is connected to the outer side of the telescopic rod (17) at the top of the mounting sleeve (19) by a connecting spring (18).

5. The pressure roller mechanism of a carton printing machine according to claim 3, characterized in that: It also includes a handle (23), with the outer middle part of each set of mounting sleeves (19) connected to the inner side of a set of handles (23).

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