CN103465307B - A kind of cutting roller - Google Patents

Abstract

The invention relates to the field of production machinery for disposable absorbent articles, in particular to a cutter roller with simple structure, effective heat dissipation and longer service life. The cutting knife is provided with a shaft hole along the shaft center on the body, and a plurality of through holes passing through the body are arranged on the side of the body located outside the circumference of the shaft hole, and the through holes are evenly distributed along the circumferential direction. It is arranged on the body and is parallel to the axis of the body. A processing groove is cut around the axis in the body, and the processing groove is connected with the through hole. The minimum distance between the two cutting heads, the two ends of the center of the processing groove along the length direction of the body are symmetrical.

Description

a cutting roller

technical field

The invention relates to the field of production machinery for disposable absorbent articles, in particular to a cutter roller for cutting materials of various shapes.

Background technique

At present, the existing cutter rolls, because they are used more frequently and the blades are sharper due to the need for cutting, are often easy to wear and tear. Although they can still be used after grinding, the cutter rolls are also damaged after grinding too many times. will be scrapped. In the production of disposable absorbent products such as sanitary napkin backsheets, when the number of pieces cut by the knife roller is 200-300 pieces, it is often unusable and needs to be ground, and after 10 times of grinding, it is often scrapped . Since the knife roller is a precision accessory made of a special material, its price is often high, and whether it is frequent grinding or frequent replacement, it will consume a lot of cost. In the existing industrial production, we have been studying how to improve its service life and performance, but we often start with materials, and good materials also mean higher costs, and their cost performance does not meet Production requirements are often not suitable for industrial production.

Contents of the invention

Therefore, in view of the above problems, the present invention proposes a cutter roller with simple structure, effective heat dissipation and longer service life.

In order to achieve the above object, the present invention adopts the following technical solutions: a cutter roller, which is arranged on the cutter shaft, includes a body, a cutter arranged on the outer surface of the body circumference, the body is provided with The shaft hole, the side of the body is located on the outer circumference of the shaft hole, there are a plurality of through holes through the body, the through holes are evenly distributed on the body along the circumferential direction and parallel to the axis of the body, so A processing groove is dug and cut around the axis in the body, and the processing groove communicates with the through hole. The two ends of the center along the length direction of the body are symmetrical.

Further, the minimum diameter of the treatment groove along the radial direction of the body is greater than the maximum distance from the through hole to the axis.

Further, the projection of the treatment tank along the radial direction of the body is a circle.

Further, the number of said through holes is eight.

Further, the treatment tank is an annular tank body.

Further, the body is made by quenching, and its HRC is 60-63.

By adopting the aforementioned technical scheme, the beneficial effect of the present invention is: compared with the existing cutter roller, the cutter roller is dug and cut with a treatment groove, and is provided with a through hole communicating with the treatment groove, so that the body The weight is reduced, so that the impact on the shaft when cutting the material is reduced, thereby increasing the service life of the cutter, and it also makes it easier for the cutter roller to dissipate heat, so that the heat will not accumulate on the cutter roller due to the cutting of the material inside, so that the cutter roller is deformed and the service life is reduced, and the outer surface of the cutter roller is not quenched completely due to the thickness of the quenching, but the inside of the cutter roller is not well treated, thus The material is easily deformed and the service life is reduced; further, the minimum diameter of the treatment groove along the radial direction of the body is greater than the maximum distance from the through hole to the axis, so that the heat dissipation is complete, and within the allowable range, the cutting knife is reduced to the greatest extent. The weight of the roller makes the cutter roller have a thin-walled structure, so that the quenching is more complete, the cutter roller is less likely to be deformed, and the service life is longer; further, the maximum length of the treatment groove along the axial direction of the body is smaller than the left and right cutter heads of the cutter The minimum distance between them, which makes the radial length of the processing groove between the two cutter heads of the cutter, so that the thickness of the cutter head of the cutter is increased, so that the cutter roller is more stable and more stable when it is stressed. Not easy to deform, longer service life.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a cross-sectional view at A-A in Fig. 1 .

detailed description

The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

Referring to Fig. 1 and Fig. 2, the present embodiment provides a cutter roller, which is arranged on the cutter shaft, and includes a body 1, a cutter 2 arranged on the outer surface of the circumference of the body 1, and the body 1 is arranged on the shaft center. A shaft hole 11 is provided, and eight through holes 3 penetrating the body 1 are arranged on the side of the body 1 outside the circumference of the shaft hole 11, and the through holes 3 are evenly distributed on the body 1 along the circumferential direction And parallel to the axis of the body 1 , a treatment tank 4 is cut around the axis in the body 1 , and the treatment tank 4 communicates with the through hole 3 . The treatment tank 4 is an annular tank body, and the diameter of the treatment tank 4 along the radial direction of the body 1 is greater than the maximum distance from the through hole 3 to the axis. The two ends of the center of the processing tank 4 along the length direction of the body 1 are symmetrical, and the maximum length of the processing tank 4 along the axial direction of the body 1 is smaller than the minimum distance between the left and right blades 21 of the cutter 2 . The body is made by quenching, and its HRC is 63.

Compared with the existing cutter roller, the cutter roller has a treatment groove by digging, and is provided with a through hole communicating with the treatment groove, so that the weight of the body is reduced, and the shaft alignment when cutting the material is reduced. The influence of the cutting knife is reduced, thereby improving the service life of the cutter, and it also makes it easier for the cutter roller to dissipate heat, so that the heat will not accumulate in the cutter roller due to the shearing of the material, thereby deforming the cutter roller and reducing the service life , and then it can also prevent the outer surface of the cutter roller from being completely quenched due to the thickness during quenching, while the inside of the cutter roller is not well treated, so that the material is easily deformed and the service life is reduced; further, all The minimum diameter of the treatment groove along the radial direction of the body is greater than the maximum distance from the through hole to the axis, so that the heat dissipation is complete, and within the allowable range, the weight of the cutter roller is reduced to the greatest extent, so that the cutter roller has a thin-walled structure, Thereby, the quenching is more complete, the cutter roller is less likely to be deformed, and the service life is longer; further, the maximum length of the treatment tank along the axial direction of the body is less than the minimum distance between the left and right cutter heads of the cutter, which makes the diameter of the treatment tank The longitudinal length is located between the two cutter heads of the cutter, so that the thickness of the cutter head of the cutter is increased, so that the cutter roller is more stable when stressed, less likely to be deformed, and has a longer service life.

Although the present invention has been particularly shown and described in conjunction with preferred embodiments, it will be understood by those skilled in the art that changes in form and details may be made to the present invention without departing from the spirit and scope of the invention as defined by the appended claims. Making various changes is within the protection scope of the present invention.

Claims (5)

1. A cutter roller, which is arranged on the cutter shaft, comprises a body, a cutter arranged on the outer surface of the body circumference, the body is provided with a shaft hole along the axis, and it is characterized in that: the body A plurality of through holes through the body are arranged on the outer side of the shaft hole on the side, and the through holes are evenly distributed on the body along the circumferential direction and parallel to the axis of the body. Cut a processing groove, the processing groove is connected with the through hole, the maximum length of the processing groove along the axial direction of the body is less than the minimum distance between the left and right cutter heads of the cutter, and the center of the processing groove along the length direction of the body is two The end is symmetrical, and the minimum diameter of the treatment groove along the radial direction of the body is greater than the maximum distance from the through hole to the axis. 2. A cutter roll according to claim 1, characterized in that: the projection of the treatment groove along the radial direction of the main body is a circle. 3. A cutter roll according to any one of claims 1 to 2, characterized in that the number of said through holes is eight. 4. A cutter roll according to any one of claims 1 to 2, characterized in that the treatment tank is an annular tank body. 5 . The cutter roll according to any one of claims 1 to 2 , characterized in that: the body is made by quenching, and its HRC is 60-63. 6 .