Circular knife die cutting apparatus with adjustment mechanism

Abstract

The utility model discloses a circular knife die -cutting equipment with adjusting mechanism, including support, be provided with power roller, rubber roll and die -cutting roller on the support and rotate, be provided with motor on the support, and motor is connected with power roller, the top of support is equipped with mounting bracket, the top of mounting bracket is equipped with second gear and rotates through the bearing, and the number of second gear is three and linearly arranges on mounting bracket upper end face, and adjacent second gear engages and connects, be equipped with handle on one second gear, the middle position of remaining two second gears is equipped with threaded hole, and the threaded connection has screw rod, the bottom of screw rod is connected with pressure plate, and the both ends of pressure plate bottom rotate and are equipped with pressure wheel, be equipped with locking subassembly on mounting bracket for locking second gear. Advantageous effects: through pressure plate makes both ends pressure wheel synchronous downshift and applies the same pressure to die -cutting roller, avoids two sides respectively and moves and causes the problem of uneven pressurization, and then influences die -cutting quality and die -cutting roller service life problem to happen.

Description

Technical Field

[0001] This utility model belongs to the technical field of circular die-cutting equipment, and particularly relates to a circular die-cutting equipment with an adjustment mechanism. Background Technology

[0002] Rotary die-cutting machines, also known as rotary die-cutting machines, are high-efficiency die-cutting equipment with a roller structure. They are mainly used for die-cutting, creasing, hot stamping, and automatic waste removal of flexible or semi-rigid materials such as paper, cardboard, plastic film, self-adhesive labels, and EVA. They are widely used in packaging printing, electronic accessories, and label sticker industries. Current rotary die-cutting equipment mainly achieves die-cutting by applying pressure to the die-cutting rollers through pressure blocks on both sides. This requires manual rotation of the screws on both sides to apply pressure to the die-cutting rollers. However, manually adjusting the pressure on both sides makes it difficult to ensure balanced force, easily leading to uneven force on both ends of the die-cutting roller. This can cause axial skew of the die-cutting roller, resulting in inconsistent die-cutting depth and affecting the dimensional accuracy and cut quality of the die-cut products. At the same time, uneven pressure distribution accelerates blade wear and reduces blade life. Utility Model Content

[0003] Based on the above background, the purpose of this utility model is to provide a circular die-cutting device with an adjustment mechanism.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A rotary die-cutting device with an adjustment mechanism includes a support frame, which is U-shaped. A power roller, a rubber roller, and a die-cutting roller are rotatably mounted on the support frame from bottom to top. A motor is mounted on the support frame, and the output end of the motor is connected to the power roller.

[0006] The bracket is provided with a mounting bracket at the top, and the mounting bracket is connected to the bracket by bolts and threads;

[0007] The top of the mounting frame is rotatably provided with a second gear via a bearing. There are three second gears arranged linearly on the upper end face of the mounting frame, and adjacent second gears are meshed together.

[0008] One of the second gears has a handle;

[0009] The other two second gears have threaded holes in the middle and are threaded with screws;

[0010] The bottom of the screw is connected to a pressure plate, and pressure rollers are rotatably provided at both ends of the bottom of the pressure plate;

[0011] The mounting bracket is equipped with a locking assembly for locking the second gear.

[0012] The above technical solution involves rotating the handle to drive the corresponding second gear, which in turn drives two other second gears to rotate. This causes the two screws to move downwards, which in turn moves the pressure plate downwards, allowing the pressure rollers to apply pressure to the die-cutting roller. The pressure plate ensures that the pressure rollers at both ends move downwards synchronously, applying the same pressure to the die-cutting roller. This avoids uneven pressure caused by separate movement on both sides, which could affect die-cutting quality and the lifespan of the die-cutting roller. By setting the second gear and two screws, the synchronous movement of the two screws can be achieved simply by rotating the handle. Compared to controlling the raising and lowering of the pressure plate with a single screw, the use of two screws improves the stability of the pressure plate movement and pressure application. Furthermore, the locking component prevents vibrations during equipment operation from causing the screws to rotate and thus moving the pressure plate, which would affect the die-cutting quality.

[0013] Furthermore, the power roller, the rubber roller, and the die-cutting roller are all equipped with a first gear, and adjacent first gears are meshed together.

[0014] Furthermore, the bracket has grooves on both sides; the power roller, rubber roller and die-cutting roller are each provided with a first slider at both ends, and the first slider is slidably disposed in the groove.

[0015] Furthermore, the first slider has an I-shaped structure, with its middle position located in a groove, and its two protruding ends abutting against the sides of the bracket.

[0016] Furthermore, the pressure plate has two pressure rollers on each side.

[0017] Through the above technical solution, the two pressure rollers can apply pressure to the die-cutting roller more effectively.

[0018] Furthermore, the pressure plate is slidably disposed in the groove on both sides.

[0019] Furthermore, the pressure plate is provided with a limiting block, which abuts against the side of the bracket.

[0020] Furthermore, the locking assembly includes a toothed plate; the top of the mounting bracket has a slot, the toothed plate is detachably inserted into the slot, and when the toothed plate is in the slot, the toothed plate meshes with one of the second gears.

[0021] Furthermore, a rubber layer is provided at the bottom of the toothed plate.

[0022] Furthermore, the toothed plate is connected to the mounting bracket by bolts.

[0023] This utility model has the following beneficial effects:

[0024] By rotating the handle, the corresponding second gear rotates, which in turn drives the other two second gears to rotate, causing the two screws to move downwards. This, in turn, moves the pressure plate downwards, allowing the pressure rollers to apply pressure to the die-cutting rollers. The pressure plate ensures that the pressure rollers at both ends move downwards synchronously, applying the same pressure to the die-cutting rollers. This avoids uneven pressure caused by separate movement on both sides, which could affect die-cutting quality and the lifespan of the die-cutting rollers. By setting up the second gears and two screws, the synchronous movement of the two screws can be achieved simply by rotating the handle. Compared to controlling the raising and lowering of the pressure plate with a single screw, the setup of two screws improves the stability of the pressure plate movement and pressure application. Furthermore, a locking component is included to prevent vibrations during equipment operation from causing the screws to rotate and thus moving the pressure plate, which would affect the die-cutting quality. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a front structural diagram of the present invention;

[0027] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 3 This is a three-dimensional structural diagram of the mounting bracket of this utility model;

[0029] Figure 4 This is a three-dimensional structural diagram of the toothed plate and the slot of this utility model.

[0030] Among them: 1. bracket; 11. slide groove

[0031] 2. Power roller; 21. Motor; 22. First gear; 23. First slider;

[0032] 3. Rubber rollers;

[0033] 4. Die-cutting roller;

[0034] 5. Mounting bracket; 51. Handle; 52. Second gear; 53. Screw; 54. Pressure plate; 55. Pressure roller; 56. Limit block;

[0035] 6. Toothed plate; 61. Slot. Detailed Implementation

[0036] 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.

[0037] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0038] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0039] like Figure 1-4As shown, a circular die-cutting device with an adjustment mechanism includes a support 1, which is U-shaped. A power roller 2, a rubber roller 3, and a die-cutting roller 4 are rotatably mounted on the support 1 from bottom to top. The power roller 2, rubber roller 3, and die-cutting roller 4 are all detachably connected to the support 1. A motor 21 is mounted on the support 1, and the output end of the motor 21 is connected to the power roller 2. The motor 21 drives the power roller 2 to rotate, which in turn drives the rubber roller 3 to rotate, which in turn drives the die-cutting roller 4 to rotate. Material passes between the rubber roller 3 and the die-cutting roller 4, and the die-cutting roller 4 performs die-cutting on the material. Each of the power roller 2, rubber roller 3, and die-cutting roller 4 is equipped with a first gear 22. Adjacent first gears 22 mesh with each other, and the meshing of the first gears 22 enables the transmission connection between the power roller 2, rubber roller 3, and die-cutting roller 4. A mounting bracket 5 is located at the top of the support 1 and is connected to the support 1 by bolts. The top of the mounting bracket 5 is open to... A second gear 52 is rotatably mounted via a bearing. There are three second gears 52 arranged linearly on the upper end face of the mounting frame 5, and adjacent second gears 52 are meshed together. One of the second gears 52 is provided with a handle 51. The middle position of the other two second gears 52 is provided with a threaded hole, and a screw 53 is threadedly connected to it. The threads of the two screws 53 are opposite in direction, and the screws 53 pass through the mounting frame 5, and can be slidably connected to the mounting frame 5 or threadedly connected to it. A pressure plate 54 is connected to the bottom of the screw 53, and the screw 53 and the pressure plate 54 are rotatably connected via a bearing. Pressure rollers 55 are rotatably mounted at both ends of the bottom of the pressure plate 54. The mounting frame 5 is provided with a locking assembly for locking the second gears 52. The locking assembly can be provided in one set or multiple sets, and can lock one or multiple second gears 52.

[0040] Through the above technical solution, rotating the handle 51 drives the corresponding second gear 52 to rotate, thereby driving the other two second gears 52 to rotate, which in turn drives the two screws 53 to move downward, and then drives the pressure plate 54 to move downward, so that the pressure roller 55 applies pressure to the die-cutting roller 4. The pressure plate 54 makes the pressure rollers 55 at both ends move downward synchronously to apply the same pressure to the die-cutting roller 4, avoiding uneven pressure caused by the separate movement of the two sides, which would affect the die-cutting quality and the service life of the die-cutting roller 4. By setting the second gear 52 and the two screws 53, the two screws 53 can be moved synchronously by simply rotating the handle 51. Compared with one screw 53 controlling the raising and lowering of the pressure plate 54, the setting of two screws 53 can improve the stability of the movement and pressure of the pressure plate 54. In addition, a locking component is set to prevent the vibration generated during the operation of the equipment from causing the screws 53 to rotate and the pressure plate 54 to move, which would affect the die-cutting quality.

[0041] Furthermore, the bracket 1 has grooves 11 on both sides; the power roller 2, rubber roller 3, and die-cutting roller 4 are all provided with first sliders 23 at both ends. The power roller 2, rubber roller 3, and die-cutting roller 4 are all rotatably connected to the first sliders 23. The first sliders 23 are slidably disposed in the grooves 11. The first sliders 23 are I-shaped structures. The middle position of the first sliders 23 is located in the grooves 11. The two protruding ends of the first sliders 23 abut against the sides of the bracket 1. The I-shaped first sliders 23 slide in the grooves and engage with the outside of the grooves 11 at the same time, thereby limiting the first sliders 23 and thus limiting the installation of the power roller 2, rubber roller 3, and die-cutting roller 4 onto the bracket 1.

[0042] Furthermore, there are two pressure rollers 55 on each side of the pressure plate 54. The two pressure rollers 55 are symmetrically arranged directly above the die-cutting roller 4. The two pressure rollers 55 can better apply pressure to the die-cutting roller 4. The two sides of the pressure plate 54 are slidably arranged in the slide groove 11. The pressure plate 54 is provided with a limiting block 56. The limiting block 56 abuts against the side of the bracket 1. It can limit the pressure plate 54 to prevent the pressure plate 54 from rotating with the screw 53, and also limit the up and down movement of the pressure plate 54.

[0043] Furthermore, the locking assembly includes a toothed plate 6; the top of the mounting bracket 5 has a slot 61, and the toothed plate 6 can be detachably inserted into the slot 61. When the toothed plate 6 is in the slot 61, it meshes with one of the second gears 52. However, after the pressure plate 54 is lowered, the toothed plate 6 is inserted into the slot 61, and the toothed plate 6 meshes with the second gear 52, preventing the second gear 52 from rotating, thereby locking all the second gears 52, thus preventing the screw 53 from rotating, ensuring that the pressure plate 54 will not move, and ensuring that the adjusted pressure plate 54 applies stable pressure to the die-cutting roller 4. The bottom of the toothed plate 6 is provided with a rubber layer, which has a certain resistance, increasing the friction between the bottom of the toothed plate 6 and the slot 61. The toothed plate 6 is connected to the mounting bracket 5 by bolts, further fixing the toothed plate 6.

[0044] The working principle of this utility model is as follows: After replacing the die-cutting roller 4, the first slider 23 is slid into the slide groove 11 to complete the installation of the die-cutting roller 4. The mounting bracket 5 is then bolted to the top of the bracket 1. During the installation process, the two ends of the pressure plate 54 below the mounting bracket 5 slide into the slide groove 11, and the limiting block 56 abuts against the side of the bracket 1. After installation, the corresponding second gear 52 is rotated by turning the handle 51, which in turn drives the other two second gears 52 to rotate, thereby driving the two screws 53 to move down, and then driving the pressure plate 54 to move down. The side of the pressure roller 55 abuts against the surface of the die-cutting roller 4, so that the pressure roller 55 applies pressure to the die-cutting roller 4. After repeatedly testing to reach the required pressure, the toothed plate 6 is engaged in the slot 61 to lock the second gear 52, thereby completing the pressure adjustment of the die-cutting roller 4.

[0045] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A circular die-cutting device with an adjustment mechanism, comprising a support (1), characterized in that: The bracket (1) is U-shaped, and a power roller (2), a rubber roller (3) and a die-cutting roller (4) are arranged on the bracket (1) from bottom to top in sequence; a motor (21) is provided on the bracket (1), and the output end of the motor (21) is connected to the power roller (2); The bracket (1) is provided with a mounting bracket (5) on the top, and the mounting bracket (5) is connected to the bracket (1) by bolt thread; The top of the mounting bracket (5) is provided with a second gear (52) via a bearing. There are three second gears (52) arranged linearly on the upper surface of the mounting bracket (5), and adjacent second gears (52) are meshed together. One of the second gears (52) is provided with a handle (51); The other two second gears (52) have threaded holes in the middle position and are threaded to screws (53). The bottom of the screw (53) is connected to a pressure plate (54), and pressure rollers (55) are rotatably provided at both ends of the bottom of the pressure plate (54). The mounting bracket (5) is provided with a locking component for locking the second gear (52).

2. The circular die-cutting equipment with an adjustment mechanism according to claim 1, characterized in that: The power roller (2), the rubber roller (3) and the die-cutting roller (4) are each provided with a first gear (22), and adjacent first gears (22) are meshed together.

3. The circular die-cutting equipment with an adjustment mechanism according to claim 1, characterized in that: The bracket (1) has grooves (11) on both sides; the power roller (2), rubber roller (3) and die-cutting roller (4) are each provided with a first slider (23), which slides in the groove (11).

4. The circular die-cutting equipment with an adjustment mechanism according to claim 3, characterized in that: The first slider (23) is an I-shaped structure. The middle position of the first slider (23) is located in the groove (11). The two protruding ends of the first slider (23) abut against the side of the bracket (1).

5. The circular die-cutting equipment with an adjustment mechanism according to claim 1, characterized in that: The pressure plate (54) has two pressure rollers (55) on both sides.

6. The circular die-cutting equipment with an adjustment mechanism according to claim 5, characterized in that: The pressure plate (54) is slidably disposed on both sides in the groove (11).

7. The circular die-cutting equipment with an adjustment mechanism according to claim 6, characterized in that: The pressure plate (54) is provided with a limiting block (56), which abuts against the side of the bracket (1).

8. The circular die-cutting equipment with an adjustment mechanism according to claim 1, characterized in that: The locking assembly includes a toothed plate (6); the mounting bracket (5) has a slot (61) on its top, the toothed plate (6) is detachably inserted into the slot (61), and when the toothed plate (6) is in the slot (61), the toothed plate (6) meshes with one of the second gears (52).

9. The circular die-cutting equipment with an adjustment mechanism according to claim 8, characterized in that: The toothed plate (6) has a rubber layer at its bottom.

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