Multifunctional plastic pelletizing device

Abstract

The utility model relates to a multifunctional plastic pelletizing device which comprises a power assembly and a feeding die head, the power assembly and the feeding die head are connected through a cutting chamber, an upper channel and a lower channel are arranged on the upper side and the lower side of the cutting chamber, and a cooling medium penetrates through the cutting chamber from the upper channel to flow towards the lower channel. The upper channel is connected with a first channel and a second channel in a penetrating manner; the first channel and the second channel are communicated and connected with the same or different cooling medium sources, the first channel and the second channel are respectively provided with a pipeline valve, and the first channel and the second channel are arranged on the cutting chamber, so that the requirements on the cooling medium in the pelletizing process of different materials may be different; and the two liquid inlet pipelines are arranged, so that the supply mode and the supply amount of the cooling medium can be flexibly adjusted according to different material characteristics and production requirements, and the adaptability to different materials is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cutting machine technical field especially a multifunctional plastic cutting device. BACKGROUND

[0002] The underwater cutting granulator set generally comprises a single-stage or two-stage exhaust extruder, an underwater cutting machine, a flexible cutter holder, an automatic dehydration (drying) device, a vibrating separation screen, a pneumatic conveying system, a material collecting hopper and a control system. When the uniform high-temperature molten material enters the die flow channel from the end of the upstream equipment (a reaction kettle, a screw extruder, a melt pump, etc.), the material is cut into droplets by the high-speed rotating cutting machine blade as soon as it leaves the die hole and enters the processing water. Due to the physical properties of the maximum specific surface area and the temperature difference between the molten droplet polymer and the processing water, the droplets solidify and form particles close to spheres. This "intermediate state between hot cutting and cold cutting" granulation method determines that it can well perform the granulation operation of materials with poor strength, high viscosity and high heat sensitivity in the molten state.

[0003] In the plastic cutting process, the cutting machine blade cooperates with the die to work. The cutting machine blade rotates at high speed under the drive of the motor. The high-temperature molten material is extruded from the die and cut into plastic particles by the cutting machine blade.

[0004] However, the existing cutting machine adopts a single channel and cannot flexibly adjust the supply mode and supply amount of the cooling medium. Therefore, it cannot adapt to the cutting of different material characteristics. INVENTION CONTENTS

[0005] The utility model aims at providing a multifunctional plastic cutting device to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a multifunctional plastic cutting device, which comprises a power assembly and a feeding die head. The power assembly and the feeding die head are connected through a cutting chamber. The upper and lower sides of the cutting chamber are provided with an upper channel and a lower channel. The cooling medium flows from the upper channel through the cutting chamber to the lower channel. The upper channel is connected with a first channel and a second channel. The first channel and the second channel are connected with the same or different cooling medium sources. The first channel and the second channel are provided with pipe valves.

[0007] Compared with the prior art, the first channel and the second channel are arranged on the cutting chamber. The demand for cooling medium may be different in the cutting process of different materials. Some materials may need more cooling water for rapid cooling, while other materials may have higher demand for lubricating liquid. The two liquid inlet pipes can flexibly adjust the supply mode and supply amount of the cooling medium according to different material characteristics and production requirements, thereby improving the adaptability to different materials.

[0008] The preferred technical scheme of the application is that the cutting chamber is provided with a cutting knife assembly for cutting, the cutting knife assembly is fixedly installed on the power assembly, and the power assembly drives the cutting knife assembly to rotate in the cutting chamber to cut the material fed by the feeding die head.

[0009] The preferred technical scheme of the application is that the lower channel is provided with a liquid outlet channel connected therethrough, and the second channel and the liquid outlet channel are connected through a third channel.

[0010] The preferred technical scheme of the application is that the first channel and the second channel are both provided with a pipeline valve.

[0011] The preferred technical scheme of the application is that the pipeline valve of the second channel is connected in parallel with an adjusting pipeline on one side, and the two ends of the adjusting pipeline are connected through the two sides of the pipeline valve.

[0012] The preferred technical scheme of the application is that the connection between the second channel and the third channel is connected through a variable-diameter connecting pipe.

[0013] The preferred technical scheme of the application is that the third channel, the liquid outlet channel and the lower channel are connected through a variable-diameter three-way pipe.

[0014] In addition to the technical problems solved by the application, the technical features of the technical scheme and the advantages brought by the technical features, other technical problems solved by the application, other technical features included in the technical scheme and the advantages brought by the technical features will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is an assembly perspective view of the application.

[0016] BRIEF DESCRIPTION OF DRAWINGS: 01. Power assembly, 02. Feeding die head, 03. Cutting chamber, 04. Upper channel, 05. Lower channel, 06. First channel, 07. Second channel, 08. Liquid outlet channel, 09. Third channel, 10. Pipeline valve, 11. Adjusting pipeline, 12. Connecting pipe, 13. Three-way pipe. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the application will be described clearly and completely with reference to the drawings in the embodiments of the application.

[0018] Please refer to Figure 1As shown, the multifunctional plastic particle cutting device comprises a power assembly 01 and a feeding die 02, the power assembly 01 and the feeding die 02 are connected through a cutting chamber 03, the cutting chamber 03 is provided with a cutting knife assembly for cutting particles, the cutting knife assembly is fixedly installed on the power assembly 01, and the power assembly 01 drives the cutting knife assembly to rotate in the cutting chamber 03 to cut the material fed into the feeding die 02.

[0019] The upper and lower sides of the cutting chamber 03 are provided with an upper channel 04 and a lower channel 05, and the cooling medium flows from the upper channel 04 to the lower channel 05 through the cutting chamber 03. Compared with the flow direction of the traditional cooling medium entering from the lower part of the cutting chamber 03 to the upper part, the water flow from the upper part to the lower part is consistent with the direction of the gravity of the particles, so that the direction of the cooling medium is basically consistent with the movement direction of the particles, which can provide a forward pushing force for the particles to help the particles smoothly discharge from the cutting chamber 03. Thus, the accumulation of particles in the cutting chamber 03 due to the flow rate of the cooling medium or other reasons is prevented, and the continuity of production is affected.

[0020] The upper channel 04 is throughly connected with a first channel 06 and a second channel 07. The lower channel 05 is throughly connected with a liquid outlet channel 08, the second channel 07 and the liquid outlet channel 08 are throughly connected by a third channel 09, the first channel 06 and the second channel 07 are throughly connected with the same or different cooling medium sources, and the first channel 06 and the second channel 07 are both provided with a pipeline valve 10. The pipeline valve 10 can be an electric pipeline valve 10 or a pneumatic pipeline valve 10. By arranging the first channel 06 and the second channel 07 on the cutting chamber 03, two standby liquid inlet pipelines are arranged in the cutting chamber 03. In the production process, if one liquid inlet pipeline is blocked, leaks, fails or needs to be maintained, the other liquid inlet pipeline can continue to work, ensuring that the cooling and lubrication of the cutting particles are not interrupted, thereby maintaining the continuity of production and avoiding production stagnation and product quality problems caused by liquid interruption.

[0021] At the same time, the first channel 06 and the second channel 07 realize different functions or meet different process requirements.

[0022] Different cooling medium supply: one liquid inlet pipeline can be used to supply cooling water to cool the material and the cutter during the cutting process, reduce the temperature, and prevent the material from overheating and sticking and the cutter from overheating and wearing; in this way, the supply of various cooling media can be accurately controlled according to different process requirements, and the performance and service life of the cutting machine are improved.

[0023] Different liquid inlet speeds and pressures: According to the needs of the production process, two liquid inlet pipes can be set to different liquid inlet speeds and pressures. For example, in the initial stage of pelletizing, a higher liquid inlet speed and pressure may be required to quickly cool and fix the material, while in the subsequent stage, a lower liquid inlet speed and pressure may be required to avoid impact and damage to the formed particles. Through independent control of the two liquid inlet pipes, the liquid inlet parameters can be flexibly adjusted to meet the process requirements of different stages.

[0024] At the same time, improve the adaptability and flexibility of the system: adapt to different materials and production conditions: for different materials, the demand for cooling medium during pelletizing may be different. Some materials may require more cooling water to quickly cool down, while others may have higher demand for lubricating liquid. Setting two liquid inlet pipes can flexibly adjust the supply mode and supply amount of cooling medium according to different material characteristics and production requirements, improving the adaptability of the pelletizer to different materials.

[0025] The pipe valve 10 of the second channel 07 is connected in parallel with an adjusting pipe 11 on one side, and the two ends of the adjusting pipe 11 are connected with the two sides of the pipe valve 10 respectively. In the long-distance, large-flow cooling medium conveying system, the single pipe valve 10 in the full open state may still cause a certain pressure loss. By connecting a pipe in parallel, part of the cooling medium flow can be shared, thereby reducing the pressure loss of the entire system passing through the pipe valve 10, and improving the cooling medium conveying efficiency.

[0026] The connection between the second channel 07 and the third channel 09 is connected by a variable-diameter connecting pipe 12. When the cold cutting medium flows from the second channel 07 to the third channel 09, the flow rate will increase. The third channel 09, the liquid outlet channel 08 and the lower channel 05 are connected by a variable-diameter tee pipe 13. When the cold cutting medium flows from the third channel 09 to the liquid outlet channel 08, the flow rate will decrease. The flow rate of the cooling medium is increased or decreased to meet the specific process requirements or equipment operating conditions.

[0027] If the embodiment of the utility model has involved directional indication (such as up, down, left, right, front, back), then the directional indication is only used to explain the relative position relationship, movement condition and the like between components in a certain specific posture (as shown in the drawing), if the specific posture changes, then the directional indication also changes accordingly.

[0028] The above embodiments only describe the preferred embodiments of the utility model, and do not limit the scope of the utility model. Without departing from the design spirit of the utility model, various deformations and improvements of the technical solutions of the utility model made by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A multifunctional plastic pellet cutting device, comprising a power assembly and a feeding die head, the power assembly and the feeding die head being connected through a cutting chamber, characterized in that, The upper and lower sides of the cutting chamber are provided with an upper passage and a lower passage, cooling medium flows from the upper passage to the lower passage through the cutting chamber, the upper passage is through connected with a first passage and a second passage; the first passage and the second passage are through connected with the same or different cooling medium sources.

2. The multi-functional plastic pellet cutting device according to claim 1, wherein: A cutter assembly for cutting particles is arranged in the cutting chamber, the cutter assembly is fixedly installed on the power assembly, and in operation, the power assembly drives the cutter assembly to rotate in the cutting chamber to cut the material fed by the feeding die head.

3. The multi-functional plastic pellet cutting device according to claim 2, wherein: The lower passage is through connected with a liquid outlet passage, the second passage and the liquid outlet passage are through connected by a third passage.

4. The multi-functional plastic pellet cutting device according to claim 3, wherein: The first passage and the second passage are both provided with a pipeline valve.

5. The multi-functional plastic pellet cutting device according to claim 4, wherein: The pipeline valve on one side of the second passage is connected in parallel with an adjusting pipeline, and the two ends of the adjusting pipeline are through connected with the two sides of the pipeline valve.

6. The multi-functional plastic pellet cutting device according to any one of claims 1-5, wherein: The connection between the second passage and the third passage is through connected by a connecting pipe.

7. The multi-functional plastic pellet cutting device according to any one of claims 1-5, wherein: The third passage, the liquid outlet passage and the lower passage are through connected by a three-way pipe.

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