Knife roll with automatic ejection function

Abstract

The utility model relates to the technical field of knife rolls, in particular to a knife roll with an automatic ejection function, which comprises a roll body. A cutting structure is installed on the outer side of the roller body and comprises a convex part, the convex part is fixedly installed in the middle of the outer wall of the roller body, a blade is integrally formed on the surface of the convex part, a groove is formed in the surface of the convex part, a cavity is formed in the convex part, and a sealing plug is in threaded connection with the right side wall of the convex part. A through hole is formed in the blade, and a water blocking ring is installed on the inner wall of the through hole. The cavity is filled with the filling liquid, the filling liquid can be kept at the bottom of the inner side of the cavity under the action of gravity, and the push plate at the lower end of the cavity can be lifted by matching with the floating ball, so that the cutting edge at the bottom end of the convex part cannot be in contact with the push plate when cutting materials, the materials can be prevented from being extruded by the push plate, and the cutting efficiency is improved. Materials can be cut according to predetermination, and the use experience is improved.

Description

A cutter roller with automatic ejection function Technical Field

[0001] This utility model relates to the field of cutter roller technology, specifically a cutter roller with automatic feeding function. Background Technology

[0002] When the rotary die-cutting machine is working, the conveyor roller sends the product to be cut between the die-cutting roller and the pressure roller, which clamp the product for die-cutting. The die-cutting roller rotates once to complete one working cycle. The cutter roller is the die-cutting roller. The outer circumference of the cutter roller is equipped with a cutting edge to cut the product. After the guide roller rotates, the cutting edge leaves a cutting mark on the product. When the cutting edge is in a closed loop, after the cutter roller rolls, the product will have the planar unfolded shape of the cutting edge.

[0003] In response, Chinese patent application number CN202022110932.5 discloses a cutting roller with an automatic ejector function, comprising a roller body and a roller shaft, wherein the roller shaft is disposed at both ends along the length of the central axis of the roller body; the outer peripheral side of the roller body is provided with cutting blades that have been used to cut the product, the cutting blades being arranged in a closed loop; the roller body is provided with an ejector assembly for ejecting the product cut within the closed loop, the ejector assembly including an elastic roller disposed within the roller body and ejector pins passing through the closed loop. This application has the technical effect of improving the speed at which the cut product falls off after being cut on the cutting roller.

[0004] The ejector pins on the cutter roller can be restored under the action of the elastic roller to push out the raw material. However, the ejector pins are always in contact with the elastic roller and will continue to be extended. When cutting the material, they will squeeze the material in the middle, which will change the surface shape of the material to a certain extent, thus changing the cutting shape of the material.

[0005] Therefore, in order to solve the above problems, a cutter roller with automatic ejection function is proposed. Summary of the Invention

[0006] The purpose of this utility model is to provide a cutter roller with an automatic ejection function to solve the problem mentioned in the background art where the ejector pin of the cutter roller can be restored under the action of the elastic roller to eject the raw material. However, the ejector pin is always in contact with the elastic roller and will continue to be extended. When cutting the material, it will squeeze the material in the middle, which will change the surface shape of the material to a certain extent, thus changing the cutting shape of the material.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cutter roller with automatic ejection function, comprising: a roller body;

[0008] A cutting structure is installed on the outer side of the roller body. The cutting structure includes a protrusion, which is fixedly installed in the middle of the outer wall of the roller body. A blade is integrally formed on the surface of the protrusion. A groove is formed on the surface of the protrusion. A cavity is formed inside the protrusion. A sealing plug is threaded to the right side wall of the protrusion. A through hole is formed inside the blade. A water-blocking ring is installed on the inner wall of the through hole. A connecting rod is movably installed inside the water-blocking ring. A push plate is fixedly connected to one end of the connecting rod. A spring is sleeved on the outer side of the middle part of the push plate. A float is fixedly connected to the other end of the push plate. Heat dissipation fins are provided on the inner wall of the groove. The inner side of the cavity is filled with filling liquid.

[0009] Preferably, the protrusion is coaxially arranged with the roller body.

[0010] Preferably, the grooves are located on both sides of the blade.

[0011] Preferably, the through hole communicates with the interior of the cavity, and the connecting rod is inserted into the through hole.

[0012] Preferably, the push plate is located inside the blade, and the two ends of the spring are fixedly connected to the inner wall of the cavity and the surface of the float, respectively.

[0013] Preferably, the outer wall of the heat dissipation fins is flush with the outer wall of the protrusion.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by filling the cavity with filling liquid, this utility model can be kept at the bottom of the inner side of the cavity under the action of gravity. With the help of the float, the push plate located at the lower end of the cavity can be raised, so that the blade located at the bottom of the protrusion will not come into contact with the push plate when cutting the material, thus avoiding the push plate from squeezing the material and ensuring that the material is cut according to the predetermined plan, thereby improving the user experience.

[0015] This invention features a cutting structure. By unscrewing the sealing plug and injecting filling liquid into the cavity, the liquid accumulates at the bottom inner side of the cavity under gravity. A float immersed in the liquid experiences buoyancy, causing it to move closer to the center of the protrusion. The float pulls the connecting rod within the through-hole, compressing the spring and causing the push plate to retract into the blade. During use, the blade at the lower end of the protrusion cuts the material, while the push plate inside remains in contact with it, ensuring a good cutting effect. When the blade rotates to the upper side of the protrusion, the float moves out of the filling liquid, losing its buoyancy. The connecting rod then resets under the elasticity of the spring, moving the push plate inside the blade to push out any material stuck in it, ensuring the device's cutting effect. Furthermore, the flowing filling liquid cools the surface of the protrusion, and the heat dissipation fins dissipate heat from the protrusion into the air, improving the device's heat dissipation. Attached Figure Description

[0016] Figure 1 is a front view schematic diagram of the structure of this utility model;

[0017] Figure 2 is a side view sectional diagram of the structure of this utility model;

[0018] Figure 3 is a side view sectional view of the structure of the water-blocking ring and float of this utility model;

[0019] Figure 4 is a side view sectional view of the through hole structure of this utility model.

[0020] In the diagram: 1. Roller body; 2. Cutting structure; 21. Protrusion; 22. Blade; 23. Groove; 24. Cavity; 25. Sealing plug; 27. Through hole; 28. Water-blocking ring; 29. ​​Connecting rod; 210. Push plate; 211. Spring; 212. Float; 213. Heat dissipation fins; 214. Filling liquid. 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] Please refer to Figures 1-4 for an embodiment of a cutter roller with automatic ejection function provided by this utility model:

[0023] The roller 1 used in this application is a product that can be purchased directly from the market. Its principle and connection method are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0024] A cutter roller with automatic ejection function includes: roller body 1;

[0025] A cutting structure 2 is installed on the outer side of the roller body 1. The cutting structure 2 includes a protrusion 21, which is fixedly installed in the middle of the outer wall of the roller body 1. A blade 22 is integrally formed on the surface of the protrusion 21. A groove 23 is formed on the surface of the protrusion 21. A cavity 24 is formed inside the protrusion 21. A sealing plug 25 is threaded onto the right side wall of the protrusion 21. A through hole 27 is formed inside the blade 22. A water-blocking ring 28 is installed on the inner wall of the through hole 27. A connecting rod 29 is movably installed on the inner side of the water-blocking ring 28. A push plate 210 is fixedly connected to one end of the connecting rod 29. The middle of the push plate 210... A spring 211 is fitted on the outer side, and a float 212 is fixedly connected to the other end of the push plate 210. Heat dissipation fins 213 are provided on the inner wall of the groove 23. The inner side of the cavity 24 is filled with filling liquid 214. The filling liquid 214 can be kept at the bottom of the inner side of the cavity 24 under the action of gravity. In conjunction with the float 212, the push plate 210 located at the lower end of the cavity 24 can be lifted up, so that the blade 22 located at the bottom end of the protrusion 21 will not come into contact with the push plate 210 when cutting materials. This can avoid the push plate 210 squeezing the materials and ensure that the materials are cut according to the predetermined plan, thus improving the user experience.

[0026] Furthermore, the protrusion 21 is coaxially arranged with the roller body 1, and the protrusion 21 can rotate under the drive of the roller body 1.

[0027] Furthermore, the groove 23 is located on both sides of the blade 22, and the heat dissipation fins 213 in the groove 23 can dissipate heat to the parts of the protrusion 21 located on both sides of the blade 22.

[0028] Furthermore, the through hole 27 communicates with the interior of the cavity 24, and the connecting rod 29 is inserted inside the through hole 27. The connecting rod 29 can extend and retract inside the through hole 27.

[0029] Furthermore, the push plate 210 is located inside the blade 22, and the two ends of the spring 211 are fixedly connected to the inner wall of the cavity 24 and the surface of the float 212, respectively. The spring 211 provides power for the resetting of the connecting rod 29 inside the cavity 24.

[0030] Furthermore, the outer wall of the heat dissipation fin 213 is flush with the outer wall of the protrusion 21, and the arrangement of the heat dissipation fin 213 will not cause deformation to the material.

[0031] Working principle: Before use, unscrew the sealing plug 25 and inject the filling liquid 214 into the cavity 24. The filling liquid 214 will gather at the bottom of the inner side of the cavity 24 under the action of gravity. Therefore, the float 212 immersed in the filling liquid 214 will be buoyed. Thus, the float 212 is close to the middle of the protrusion 21. The float 212 pulls the connecting rod 29 to move in the through hole 27 and squeezes the spring 211, which can make the push plate 210 retract into the blade 22. When in use, the blade 22 located at the lower end of the protrusion 21 can cut the material, while the push plate 210 inside will not come into contact with the material, which can ensure the cutting effect.

[0032] When the blade 22 rotates to the upper side of the protrusion 21, the float 212 moves out from inside the filling liquid 214. Therefore, the float 212 loses its buoyancy. As a result, the connecting rod 29 can be reset under the elastic action of the spring 211. The connecting rod 29 can drive the push plate 210 to move inside the blade 22, which can push out the material stuck in the blade 22 and ensure the cutting effect of the device.

[0033] Furthermore, when the filling liquid 214 flows inside the cavity 24, it can cool the surface of the protrusion 21. At the same time, the heat dissipation fins 213 can also dissipate the heat on the protrusion 21 into the air, thus improving the heat dissipation effect of the device.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A cutter roller with automatic ejection function, comprising: Roller body (1); characterized in that: a cutting structure (2) is installed on the outer side of the roller body (1), the cutting structure (2) includes a protrusion (21), the protrusion (21) is fixedly installed in the middle of the outer wall of the roller body (1), a blade (22) is integrally formed on the surface of the protrusion (21), a groove (23) is opened on the surface of the protrusion (21), a cavity (24) is opened inside the protrusion (21), a sealing plug (25) is threaded on the right side wall of the protrusion (21), and a cavity (24) is opened inside the blade (22). There is a through hole (27), and a water-blocking ring (28) is installed on the inner wall of the through hole (27). A connecting rod (29) is movably installed on the inner side of the water-blocking ring (28). A push plate (210) is fixedly connected to one end of the connecting rod (29). A spring (211) is sleeved on the outer side of the middle part of the push plate (210). A float ball (212) is fixedly connected to the other end of the push plate (210). Heat dissipation fins (213) are provided on the inner wall of the groove (23). The inner side of the cavity (24) is filled with filling liquid (214).

2. The cutter roller with automatic ejection function according to claim 1, characterized in that: The protrusion (21) is coaxially arranged with the roller body (1).

3. A cutter roller with automatic ejection function according to claim 1, characterized in that: The groove (23) is located on both sides of the blade (22).

4. A cutter roller with automatic ejection function according to claim 1, characterized in that: The through hole (27) communicates with the interior of the cavity (24), and the connecting rod (29) is inserted into the through hole (27).

5. A cutter roller with automatic ejection function according to claim 1, characterized in that: The push plate (210) is located inside the blade (22), and the two ends of the spring (211) are fixedly connected to the inner wall of the cavity (24) and the surface of the float (212), respectively.

6. A cutter roller with automatic ejection function according to claim 1, characterized in that: The outer wall of the heat dissipation fins (213) is flush with the outer wall of the protrusion (21).

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