Cutter bar for particle cutting

Abstract

The utility model relates to a cutter bar for particle cutting, which comprises a cutter bar main body, a plurality of cutting parts which are arranged at intervals are uniformly distributed at one end of the cutter bar main body along the circumferential direction of the cutter bar main body, a space enclosed by the plurality of cutting parts is a conveying cavity for a sample to be cut, and a blade for cutting is arranged on the side wall of one end, far away from the cutter bar main body, of each cutting part; and the cutting edge of the blade faces the conveying cavity, so that a to-be-cut sample from the conveying cavity is cut through the blade in the process that the cutter bar main body rotates in the circumferential direction of the cutter bar main body. The plastic strip cutter has the advantages that due to the structural design that the blades are arranged at one end of the cutter bar in the circumferential direction, the cutter bar can cut a plurality of plastic strips at the same time in the rotating process, the length of cut particles can be adjusted according to the rotating speed, and the cutting efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of granulation, and specifically relates to a cutter bar for micro-particle cutting. Background Art

[0002] Plastics are widely used and are indispensable components in household appliances, automobiles, mobile phones, lighting, etc. With the economic development of our country, industries such as household appliances, automobiles, mobile phones, and lighting have also developed rapidly; plastic micro-particles usually refer to plastic particles with a diameter less than 2 mm, and they are small in volume, low in hardness, and are cut in the horizontal direction after being formed into strips, resulting in low efficiency. Content of the Utility Model

[0003] Aiming at the technical problems existing in the prior art, the utility model provides a cutter bar for micro-particle cutting, which can rotate to cut a sample to be cut, with high efficiency.

[0004] The technical solution for the utility model to solve the above technical problems is as follows: A cutter bar for micro-particle cutting includes a cutter bar main body. At one end of the cutter bar main body, a plurality of spaced-apart cutting parts are evenly distributed along its circumferential direction. The space enclosed by the plurality of cutting parts is a conveying cavity for the sample to be cut. On the side wall of one end of each cutting part away from the cutter bar main body, a blade for cutting is provided; the cutting edge of the blade faces the conveying cavity, so that when the cutter bar main body rotates along its circumferential direction, the sample to be cut from the conveying cavity is cut by the blade.

[0005] As a further technical solution, the blades on the plurality of cutting parts are arranged at the same position.

[0006] As a further technical solution, a groove for placing the blade is opened on the cutting part, and the depth of the groove is greater than the thickness of the back of the blade.

[0007] As a further technical solution, the cutting edge of the blade extends out of the groove and points to the conveying cavity.

[0008] As a further technical solution, a screw hole for fixing the blade with a screw is opened on the cutting part.

[0009] As a further technical solution, the cutting part includes a connecting section and a cutting section connected to the connecting section; the blade is arranged on the cutting section; both the connecting section and the cutting section are arranged along the length direction of the cutter bar main body.

[0010] As a further technical solution, the longitudinal section of the cutting section is D-shaped, and the convex side of the D shape faces away from the conveying cavity.

[0011] As a further technical solution, the side of the knife bar body facing away from the cutting portion is rod-shaped, and a key slot for connecting to the motor is provided along the length direction of the rod.

[0012] The beneficial effects of the utility model are as follows: the structural design of the blade arranged along the circumferential direction at one end of the cutter bar enables the cutter bar to cut a plurality of plastic strips at the same time during its rotation, and the length of the cut particles can be adjusted according to the rotation speed, thereby achieving high cutting efficiency;

[0013] At the same time, several cutting parts are arranged at intervals, and during the working process, the cut particle samples can be thrown out from the gaps in combination with cold water or cold air into the particle collection container, thereby reducing the occurrence of particle adhesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of a knife bar for particle cutting according to the present invention;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of a particle cutting knife rod of the utility model from another perspective.

[0016] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0017] Tool bar body 1, keyway 11;

[0018] Cutting portion 2, groove 21, screw hole 22, connecting section 23, cutting section 24, arc surface 25;

[0019] Delivery cavity 3;

[0020] Blade 4, cutting edge 41;

[0021] Screw 5. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0023] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of this application, "plurality" means two or more, unless otherwise specifically specified.

[0024] In the description of the present application, the term "for example" is used to mean "serving as an example, illustration, or explanation". Any embodiment described as "for example" in this application is not necessarily construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present utility model. In the following description, details are set forth for purposes of explanation. It should be understood that those of ordinary skill in the art can recognize that the present utility model can be implemented without the use of these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid obscuring the description of the present utility model with unnecessary details. Therefore, the present utility model is not intended to be limited to the embodiments shown, but rather to be in line with the broadest scope consistent with the principles and features disclosed in this application.

[0025] This embodiment provides a guide rod for particle cutting that can cooperate with an extrusion die head and a power source. Refer to Figure 1 , Figure 2 , specifically including a tool bar body 1. At one end of the tool bar body 1, a plurality of spaced-apart cutting parts 2 are evenly distributed along its circumferential direction. The space enclosed by the plurality of cutting parts 2 is a conveying cavity 3 for the sample to be cut. On the side wall of the cutting part 2 away from the tool bar body 1, a cutting blade 4 is provided; the cutting edge 41 of the blade 4 faces the conveying cavity, so that when the tool bar body 1 rotates along its circumferential direction, the sample to be cut from the conveying cavity 3 is cut by the blade 4.

[0026] For example, an extrusion die head can be adaptively arranged in the conveying cavity 3, so that the high-pressure plastic solution rushes into the extrusion die head and is extruded from its die orifice to form a plastic strip, and is cut by the blade 4 at the moment of forming to obtain particles. It should be noted that a plurality of die orifices (the outlets for extruding the plastic strip) can be arranged along the circumferential direction of the extrusion die head to improve the cutting efficiency.

[0027] In the specific implementation process, for the consistency of particle cutting, refer to Figure 1 , Figure 2 , the blades 4 on the plurality of cutting parts 2 are arranged in the same position; more specifically, a groove 21 for placing the blade 4 is formed on the cutting part 2, and the depth of the groove 21 is greater than the thickness of the back of the blade 4 to prevent the cut sample from accumulating in the gap between adjacent cutting parts 2; and to facilitate improving the cutting speed of the cutting edge 41, the cutting edge 41 of the blade 4 extends out of the groove 21 and points to the conveying cavity 3.

[0028] The side of the cutting portion 2 facing the axis of the cutter bar body 1 can be an arcuate surface 25, so that the conveying cavity 3 formed inside the cutting portion 2 is conical. Correspondingly, the die head is a shape adapted to the cone, that is, the conveying cavity 3 is coaxial with the cutter bar body 1, further improving the cutting efficiency during the rotary cutting process. In a specific implementation, the die position on the extrusion die head corresponds to the cutting edge 41, so that the cutting edge 41 rotates rapidly under the rotation of the cutter bar body 1, thereby cutting the shaped plastic strip extruded from the die. At the same time, flowing cooling water or cold air can be provided on the side of the cutter bar body 1 where the cutting portion 2 is provided, and the cut particles are flushed to the particle collection container by the cooling water or cold air, thereby extending the life of the blade 4, avoiding blockage, and improving work efficiency.

[0029] In a specific implementation process, the cutting portion 2 is provided with a screw hole 22 for fixing the blade 4 with a screw 5, and the blade 4 can be replaced as needed.

[0030] The cutting portion 2 includes a connecting section 23 and a cutting section 24 connected to the connecting section 23, and the blade 4 is arranged on the cutting section 24; the connecting section 23 and the cutting section 24 are both arranged along the length direction of the knife rod body 1; optionally, the longitudinal section of the cutting section 24 is D-shaped, and the raised side of the D-shaped face is away from the conveying cavity, so that the end of the knife rod body 1 provided with the cutting portion 2 is a petal-shaped structure, and the dosage form die head is adapted to be installed in the conveying cavity 3. Preferably, the depth of the dosage form die head installation is less than The depth of the conveying cavity 3 facilitates the collection of cut particles. Optionally, the gaps between adjacent cutting parts 2 form through grooves, which facilitate the plastic strips to be cut into particles and then move along the through grooves, and finally be collected in a particle collection container. For example, a container with a liquid inlet and a liquid outlet is provided on the outer surface of the knife rod body 1, and a particle holding space wrapped in the through groove is formed between the container and the cutting part 2, so that liquid enters from the liquid inlet to cool the space while carrying the particles away from the space along the through groove, and then flows out from the liquid outlet together with the liquid and is collected in the container.

[0031] In the specific implementation process, see Figure 1 The side of the shank body 1 facing away from the cutting part 2 is rod-shaped, and a key slot 11 for connecting to a power source is provided along the length direction of the rod. The power source here can be a motor, which drives the shank body 1 to rotate.

[0032] The structural design of the cutter bar in this embodiment uses a rotary cutting method, which makes the size of plastic particles more uniform and can cut several plastic strips extruded from the die at one time, thereby improving work efficiency. In addition, the cutting length can be controlled according to the rotation speed, which has a wide range of applications and good market competitiveness.

[0033] It should be noted that in the above embodiments, the descriptions of the various embodiments have their own emphases. For parts not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0034] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic inventive concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments as well as all changes and modifications that fall within the scope of the present invention.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A tool shank for particle cutting, characterized in that It includes a tool shank body (1). At one end of the tool shank body (1), a plurality of cutting parts (2) are evenly distributed along its circumferential direction at intervals. The space enclosed by the plurality of cutting parts (2) is a conveying cavity for the sample to be cut. A cutting blade (4) is provided on the side wall of one end of the cutting part (2) far from the tool shank body (1). The cutting edge (41) of the blade (4) faces the conveying cavity, so that the tool shank body (1) cuts the sample to be cut from the conveying cavity through the blade (4) during the rotation along its circumferential direction. A groove (21) for placing the blade (4) is formed on the cutting part (2), and the depth of the groove (21) is greater than the thickness of the back of the blade (4). The cutting edge (41) of the blade (4) extends out of the groove (21) and points to the conveying cavity. The cutting part includes a connecting section (23) and a cutting section (24) connected to the connecting section (23). The blade (4) is arranged on the cutting section (24). Both the connecting section (23) and the cutting section (24) are arranged along the length direction of the tool shank body (1).

2. The cutter bar for particle cutting according to claim 1, characterized in that, The blades (4) on a plurality of the cutting parts (2) are arranged at the same position.

3. A tool shank for particle cutting according to claim 1, characterized in that, A screw hole (22) for fixing the blade (4) with a screw (5) is formed on the cutting part (2).

4. A tool shank for particle cutting according to claim 1, characterized in that, The longitudinal section structure of the cutting section (24) is D-shaped, and the convex side of the D shape faces away from the conveying cavity.

5. A tool shank for particle cutting according to claim 1, characterized in that, On the side of the tool shank body (1) away from the cutting part (2), it is rod-shaped, and a keyway (11) for connecting with a power source is formed along the length direction of the rod shape.

Images