Granulator for plastic production

Abstract

The utility model discloses a pelletizer for plastic production, which comprises a cutting machine and a collecting component, the cutting machine comprises a box body and a cutting tool arranged in the box body, a plastic inlet, a particle outlet and an air blowing port are formed on the box body, and the air blowing port is arranged towards the cutting tool; the collecting assembly comprises an air blower, a collecting pipe and a storage box, an air outlet of the air blower is communicated with the storage box through the collecting pipe, a particle inlet is formed in the part, located between the air blower and the storage box, of the peripheral wall of the collecting pipe, and the particle inlet is communicated with the particle outlet; an air outlet of the air blower is communicated with the air blowing opening through an air blowing pipe. According to the technical scheme, the problem that plastic melts are attached to the cutter can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic production, in particular to a granulator for plastic production. Background Art

[0002] A plastic granulator is a device specially used to cut plastic materials into small particles. The device usually includes an extruder, which is used to melt and extrude the plastic material, and then extrude the plastic strips through a die. Subsequently, the extruded plastic strips are cut by a cutting device to process them into uniform plastic pellets. These pellets can be used in the production of various plastic products, such as plastic bags, plastic pipes, plastic films, etc. Granulators have important application value in the plastic processing industry and can significantly improve production efficiency and product quality.

[0003] Existing plastic granulators usually use iron blocks or blades as cutting devices to cut the molten plastic strips. However, since the temperature of the newly extruded plastic strips is relatively high, when the cutter moves up and down to cut, the molten plastic is easily attached to the cutter. If these attachments are not handled in time, the cutting efficiency will be reduced, the cutting quality will be reduced, and it may even cause equipment failure and damage. Utility Model Content

[0004] The main purpose of the utility model is to provide a granulator for plastic production, aiming to solve the technical problem that the molten plastic is easily attached to the cutter during the process of cutting the molten plastic strips in the prior art.

[0005] To achieve the above-mentioned purpose, the plastic production granulator proposed in the utility model includes a cutting machine and a collecting component, the cutting machine includes a box body and a cutting tool arranged in the box body, the box body is formed with a plastic inlet, a particle outlet and an air outlet, and the air outlet is arranged toward the cutting tool; the collecting component includes a blower, a collecting pipe and a storage box, the air outlet of the blower is connected with the storage box through the collecting pipe, the part of the peripheral wall of the collecting pipe located between the blower and the storage box is provided with a particle inlet, and the particle inlet is connected with the particle outlet; the air outlet of the blower is connected with the air outlet through a blowing pipe.

[0006] Optionally, the box body includes a first side wall and a second side wall opposite to each other, and a connecting peripheral wall connecting the first side wall and the second side wall, the plastic inlet is arranged on the first side wall or the second side wall, the particle outlet and the air blowing port are both arranged on the connecting peripheral wall, and the air blowing port, the cutting tool and the particle outlet are arranged in sequence from top to bottom.

[0007] Optionally, the air outlet of the blower is located at a position higher than the blowing port, and the blowing pipe extends straightly from the air outlet of the blower toward a direction close to the blowing port.

[0008] Optionally, the air outlet of the blower is located at a position higher than the particle outlet;

[0009] The collecting pipe includes a main pipe body disposed below the particle outlet, a first pipe body connecting the main pipe body and the air outlet of the blower, and a second pipe body connecting the main pipe body and the storage box; wherein,

[0010] The first tube body is inclined downward from the air outlet of the blower toward the main tube body.

[0011] Optionally, a valve body is provided at the connection between the blowing pipe and the air outlet of the blower, and the valve body is used to control the flow rate of the gas flowing into the blowing pipe.

[0012] Optionally, the blowing pipe is arranged to be tapered in the direction from the air outlet of the blower to the blowing port.

[0013] The granulator for plastic production of the utility model technical solution has the following advantages:

[0014] The blower in this solution achieves a dual purpose. When the blower is working, part of the airflow it generates is used to blow the high-temperature plastic melt generated during the cutting process away from the tool surface, preventing the plastic melt from adhering, reducing the cutting resistance of the tool caused by the melt adhering, and improving the cutting efficiency and cutting quality. The other part of the airflow is used to quickly transport the cut plastic particles to the storage box through the collection pipe. This design effectively utilizes airflow resources and enhances the overall function of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of an embodiment of a granulator for plastic production of the utility model;

[0017] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0018] Figure 3 for Figure 1 Schematic diagram of the structure after omitting some structures.

[0019] Description of Figure Numbers:

[0020] 1. Cutting machine; 11. Box body; 111. First side wall; 111a. Plastic inlet; 112. Second side wall; 113. Connecting peripheral wall; 113a. Particle outlet; 113b. Blowing port; 12. Cutting tool; 2. Collecting assembly; 21. Blower; 22. Collecting pipe; 221. Main pipe body; 221a. Particle inlet; 222. First pipe body; 223. Second pipe body; 23. Storage box; 24. Blowing pipe; 25. Valve body.

[0021] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, which must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0025] The utility model provides a granulator for plastic production.

[0026] In the embodiment of the present utility model, Figures 1 to 3 As shown, the granulator for plastic production includes a cutting machine 1 and a collecting component 2, the cutting machine 1 includes a housing 11 and a cutting tool 12 arranged in the housing 11, the housing 11 is formed with a plastic inlet 111a, a particle outlet 113a and an air outlet 113b, the air outlet 113b is arranged toward the cutting tool 12; the collecting component 2 includes a blower 21, a collecting pipe 22 and a storage box 23, the air outlet of the blower 21 is connected with the storage box 23 through the collecting pipe 22, the peripheral wall of the collecting pipe 22 is provided with a particle inlet 221a at a portion located between the blower 21 and the storage box 23, the particle inlet 221a is connected with the particle outlet 113a; the air outlet of the blower 21 is connected with the air outlet 113b through the blowing pipe 24.

[0027] Specifically, the material of the cutting tool 12 can be high-hardness alloy steel, and the movement of the cutting tool 12 is driven by an electric motor, which can accurately control the movement trajectory and cutting force during the cutting process.

[0028] The plastic inlet 111 a is used to feed plastic material into the box body 11 for cutting by the cutting tool 12 , and the cut plastic particles enter the collecting pipe 22 through the particle outlet 113 a .

[0029] The blower 21 may be a centrifugal blower 21 or an axial flow blower 21 , and no specific limitation is made herein.

[0030] It can be understood that the blower 21 in this solution achieves a dual purpose. When the blower 21 is working, part of the airflow it generates is used to blow the high-temperature plastic melt generated during the cutting process away from the surface of the tool to prevent the plastic melt from adhering, reduce the cutting resistance of the tool caused by the melt adhering, and improve the cutting efficiency and cutting quality. The other part of the airflow quickly transports the cut plastic particles to the storage box 23 through the collection pipe 22. This design effectively utilizes the airflow resources and enhances the overall function of the equipment.

[0031] Furthermore, the box body 11 includes a first side wall 111 and a second side wall 112 relative to each other, and a connecting peripheral wall 113 connecting the first side wall 111 and the second side wall 112, the plastic inlet 111a is arranged on the first side wall 111 or the second side wall 112, the particle outlet 113a and the blowing port 113b are both arranged on the connecting peripheral wall 113, and the blowing port 113b, the cutting tool 12 and the particle outlet 113a are arranged in sequence from top to bottom.

[0032] When the plastic material enters the box 11 from the inlet, the cutting tool 12 cuts it into particles. These particles fall naturally under the action of their own gravity, and are affected by the airflow blown out of the blowing port 113b during the falling process. The airflow from the blowing port 113b can not only prevent the plastic melt from adhering to the tool, but also accelerate the moving speed of the plastic particles. In this way, the cut plastic particles can move to the particle outlet 113a faster and more smoothly, thereby improving the efficiency and output of the entire granulation process.

[0033] Of course, the design of the present application is not limited thereto, and in other embodiments, the height of the blowing port 113b may be the same as the height of the cutting tool 12, or lower than the height of the cutting tool 12.

[0034] Furthermore, the position of the air outlet of the blower 21 is higher than the position of the blowing port 113b, and the blowing pipe 24 extends straight from the air outlet of the blower 21 to the direction close to the blowing port 113b. Because the air outlet of the blower 21 is higher than the blowing port 113b, the airflow naturally flows downward with the assistance of gravity, which enhances the stability and strength of the airflow. The straight extension of the blowing pipe 24 simplifies the airflow channel and avoids airflow loss caused by bends or corners, thereby ensuring that the blowing port 113b can provide continuous and strong airflow. This strong airflow not only effectively prevents the plastic melt from adhering to the cutting tool 12, but also further accelerates the movement speed of the plastic particles from the cutting tool 12 to the particle outlet 113a, thereby improving the efficiency of the granulation process and the transmission speed of the particles.

[0035] The air outlet of the blower 21 is located at a position higher than the particle outlet 113a;

[0036] The collecting pipe 22 includes a main pipe body 221 disposed below the particle outlet 113a, a first pipe body 222 connecting the main pipe body 221 and the air outlet of the blower 21, and a second pipe body 223 connecting the main pipe body 221 and the storage box 23; wherein,

[0037] The first tube body 222 is inclined downward from the air outlet of the blower 21 to a direction close to the main tube body 221 .

[0038] The downwardly inclined design of the first tube body 222 can reduce the resistance and pressure loss of the airflow when it flows in the first tube body 222, and at the same time, prevent the plastic particles from moving toward the location of the blower 21, and ensure that when the blower 21 is not running, the plastic particles will not move into the blower casing of the blower 21, thereby ensuring the operating stability of the blower 21.

[0039] Furthermore, a valve body 25 is provided at the connection between the blowing pipe 24 and the air outlet of the blower 21 , and the valve body 25 is used to control the flow rate of the gas flowing into the blowing pipe 24 .

[0040] In specific implementation, the valve body 25 can be a manual regulating valve, an electric regulating valve, a proportional valve or a pneumatic regulating valve, etc., and no specific limitation is made here.

[0041] The use of the valve body 25 allows the operator to flexibly adjust the gas flow of different pipelines according to specific needs during the cutting process.

[0042] Furthermore, the blowing pipe 24 is arranged to be gradually reduced in the direction from the air outlet of the blower 21 to the blowing port 113b. This means that the cross-sectional area of ​​the pipe is gradually reduced. This design can gradually increase the speed and pressure of the airflow during the airflow transmission process. The gradually reduced blowing pipe 24 enables the airflow to have higher kinetic energy and impact force when it reaches the blowing port 113b, and can more effectively blow away the molten plastic on the tool and keep the tool clean. At the same time, the strong airflow can also push the plastic particles to move toward the particle outlet 113a faster, thereby improving the transmission speed and efficiency of the particles.

[0043] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A granulator for plastic production, characterized in that: include: A cutting machine (1) comprises a housing (11) and a cutting tool (12) arranged in the housing (11), wherein the housing (11) is provided with a plastic inlet (111a), a particle outlet (113a) and an air outlet (113b), and the air outlet (113b) is arranged toward the cutting tool (12); A collecting assembly (2) comprises a blower (21), a collecting pipe (22) and a storage box (23), wherein the air outlet of the blower (21) is connected to the storage box (23) through the collecting pipe (22), and a particle inlet (221a) is provided on a peripheral wall of the collecting pipe (22) located between the blower (21) and the storage box (23), and the particle inlet (221a) is connected to the particle outlet (113a); wherein: The air outlet of the blower (21) is connected to the air outlet (113b) via an air blowing pipe (24).

2. The granulator for plastic production according to claim 1, characterized in that: The box body (11) comprises a first side wall (111) and a second side wall (112) opposite to each other, and a connecting peripheral wall (113) connecting the first side wall (111) and the second side wall (112); the plastic inlet (111a) is arranged on the first side wall (111) or the second side wall (112); the particle outlet (113a) and the air outlet (113b) are both arranged on the connecting peripheral wall (113); and the air outlet (113b), the cutting tool (12) and the particle outlet (113a) are arranged in sequence from top to bottom.

3. The granulator for plastic production as claimed in claim 2, characterized in that: The position of the air outlet of the blower (21) is higher than the position of the blowing port (113b), and the blowing pipe (24) extends straight from the air outlet of the blower (21) in a direction close to the blowing port (113b).

4. The granulator for plastic production as claimed in claim 2, characterized in that: The air outlet of the blower (21) is located at a position higher than the particle outlet (113a); The collecting pipe (22) comprises a main pipe body (221) disposed below the particle outlet (113a), a first pipe body (222) connecting the main pipe body (221) and the air outlet of the blower (21), and a second pipe body (223) connecting the main pipe body (221) and the storage box (23); wherein: The first tube body (222) is inclined downward from the air outlet of the blower (21) toward a direction close to the main tube body (221).

5. The granulator for plastic production according to claim 1, characterized in that: A valve body (25) is provided at the connection between the blowing pipe (24) and the air outlet of the blower (21), and the valve body (25) is used to control the flow rate of the gas flowing into the blowing pipe (24).

6. The granulator for plastic production according to claim 1, characterized in that: The blowing pipe (24) is arranged to be gradually reduced in the direction from the air outlet of the blower (21) to the blowing port (113b).

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