A masterbatch cold cutting device

Abstract

The utility model discloses a masterbatch cold cutting device, which relates to the field of masterbatch production devices, including a cooling box, a channel tube, a traction component, a pelletizing component and a cover box, wherein both ends of the channel tube are fixedly connected to the inner wall of the cooling box, a cooling cavity is formed between the outer wall of the channel tube and the inner wall of the cooling box, the cooling cavity is filled with liquid nitrogen, a cover box is fixedly connected to the side wall of the cooling box, and the cover box is located in the output direction of the channel tube, the traction component and the pelletizing component are rotatably connected inside the cover box, the traction component is located in the output direction of the channel tube, the pelletizing component is located in the output direction of the traction component, and the plastic pull strip extruded by the extruder is driven by the traction component and passes through the channel tube and the pelletizing component to become masterbatch particles. The utility model is suitable for cooling and pelletizing a variety of materials, and is particularly suitable for pelletizing materials that are easy to absorb water, difficult to dehydrate, dry or whose water content has an adverse effect on quality.

Description

Technical Field

[0001] The utility model relates to the field of masterbatch production devices, in particular to a masterbatch cold cutting device. Background Art

[0002] Masterbatch is a common industrial semi-finished product, which is a concentrate prepared by premixing various plastic additives. It is often added in the form of masterbatch because it is not easy to disperse and the use efficiency is not high if the additives are added directly. The continuous innovation of products and technologies in the current plastics and textile industries has driven the development of masterbatches. At present, the functions of masterbatches are becoming more and more prominent, and the varieties of masterbatches on the market are also constantly enriched. The improvement of the functionality of masterbatches has also made the requirements for masterbatch processing technology more and more stringent. Among them, the pelletizing process of masterbatches is an indispensable process in the production process. Pelletizing is mainly divided into cold cutting and hot cutting. These two pelletizing processes are formulated according to the requirements of different masterbatches. Common cold cutting methods are mainly divided into air-cooled pelletizing and water-cooled pelletizing, each with its own advantages. Water-cooled pelletizing can avoid dust, but it cannot be used for pelletizing materials that are easy to absorb water, difficult to dehydrate, dry or whose water content has an adverse effect on quality. The cooling effect of air-cooled pelletizing is not as expected, and the failure to cool down in time before pelletizing leads to different particle morphology.

[0003] Therefore, those skilled in the art are in urgent need of providing a masterbatch cold cutting device that is suitable for cooling and pelletizing a variety of materials, especially for pelletizing materials that are easy to absorb water, difficult to dehydrate, dry or whose water content has an adverse effect on quality. Utility Model Content

[0004] The utility model aims to provide a masterbatch cold cutting device, which is suitable for cooling and pelletizing a variety of materials, and is particularly suitable for pelletizing materials that are easy to absorb water, difficult to dehydrate, dry or whose water content has an adverse effect on quality.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model discloses a masterbatch cold cutting device, comprising a cooling box, a channel pipe, a traction component, a pelletizing component and a cover box, wherein two ends of the channel pipe are fixedly connected to the inner wall of the cooling box, a cooling cavity is formed between the outer wall of the channel pipe and the inner wall of the cooling box, the cooling cavity is filled with liquid nitrogen, a cover box is fixedly connected to the side wall of the cooling box, and the cover box is located in the output direction of the channel pipe, a traction component and a pelletizing component are rotatably connected inside the cover box, the traction component is located in the output direction of the channel pipe, and the pelletizing component is located in the output direction of the traction component, and the plastic pull strips extruded by the extruder are driven by the traction component to pass through the channel pipe and the pelletizing component to become masterbatch particles.

[0007] Preferably, the traction assembly includes two conveying gears, both of which are rotatably connected in the cover box, the plastic pull strip is arranged between the two conveying gears, and the ends of the two conveying gears are in contact with the plastic pull strip, and the conveying gears are driven by a motor.

[0008] Preferably, the pelletizing assembly includes a synchronous upper cutting wheel and a synchronous lower cutting wheel, and the synchronous upper cutting wheel and the synchronous lower cutting wheel are both rotatably connected in the cover box, and the synchronous upper cutting wheel and the synchronous lower cutting wheel are driven by a motor. The plastic pull strip is arranged between the synchronous upper cutting wheel and the synchronous lower cutting wheel, and the synchronous upper cutting wheel and the synchronous lower cutting wheel are meshed.

[0009] Preferably, a liquid nitrogen input port and a liquid nitrogen output port are fixedly connected to the top of the cooling box body, and the liquid nitrogen enters the cooling cavity from the liquid nitrogen input port and is output from the liquid nitrogen output port.

[0010] Preferably, an air duct is fixedly connected to the top of the cover box, and an air suction fan is connected to the end of the air duct.

[0011] Preferably, the masterbatch particles are output to the outside from the bottom of the cover box.

[0012] Compared with the prior art, the beneficial technical effects of the utility model are:

[0013] (1) The utility model injects liquid nitrogen into the cooling cavity formed by the cooling box and the channel tube. The liquid nitrogen is injected into the cooling cavity from the liquid nitrogen input port and output from the liquid nitrogen output port. The plastic strip extruded by the extruder passes through the channel tube under the traction of the conveying gear. The plastic strip is rapidly cooled in the channel tube. Compared with air-cooled pelletizing, the cooling speed is fast. Compared with water-cooled pelletizing, it is suitable for pelletizing materials that are easy to absorb water, difficult to dehydrate, dry or whose water content has an adverse effect on quality.

[0014] (2) The air duct above the cover box of the utility model is connected to an air suction fan, and the dust generated by the pelletizing process is collected by the air suction fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 This is a schematic structural diagram of a masterbatch cold cutting device of the utility model.

[0017] Explanation of the reference numerals: 1. cooling box; 2. liquid nitrogen input port; 3. liquid nitrogen output port; 4. channel pipe; 5. plastic pull rod; 6. conveying gear; 7. synchronous upper cutting wheel; 8. synchronous lower cutting wheel; 9. cover box; 10. induced draft duct; 11. masterbatch particles. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] like Figure 1 As shown, a masterbatch cold cutting device includes a cooling box 1, a channel tube 4, a traction assembly, a pelletizing assembly and a cover box 9, wherein both ends of the channel tube 4 are fixedly connected to the inner wall of the cooling box 1, a cooling cavity is formed between the outer wall of the channel tube 4 and the inner wall of the cooling box 1, and the cooling cavity is filled with liquid nitrogen, a cover box 9 is fixedly connected to the side wall of the cooling box 1, and the cover box 9 is located in the output direction of the channel tube 4, a traction assembly and a pelletizing assembly are rotatably connected inside the cover box 9, the traction assembly is located in the output direction of the channel tube 4, and the pelletizing assembly is located in the output direction of the traction assembly, and the plastic pull strips 5 extruded by the extruder are driven by the traction assembly to pass through the channel tube 4 and the pelletizing assembly to become masterbatch particles 11.

[0020] Specifically, the channel tube 4 and the cooling box 1 are made of stainless steel.

[0021] The traction assembly includes two conveying gears 6, both of which are rotatably connected to the cover box 9, the plastic pull strip 5 is arranged between the two conveying gears 6, and the ends of the two conveying gears 6 contact and pull the plastic pull strip 5 to the pelletizing assembly, and the conveying gears 6 are driven by a motor. The traction assembly can pull and transport the plastic pull strip 5 to the pelletizing assembly position.

[0022] The pelletizing assembly includes a synchronous upper cutting wheel 7 and a synchronous lower cutting wheel 8, and the synchronous upper cutting wheel 7 and the synchronous lower cutting wheel 8 are both rotatably connected in the cover box 9, and the synchronous upper cutting wheel 7 and the synchronous lower cutting wheel 8 are driven by a motor. The plastic pull strip 5 is arranged between the synchronous upper cutting wheel 7 and the synchronous lower cutting wheel 8, and the synchronous upper cutting wheel 7 and the synchronous lower cutting wheel 8 are engaged to crush the plastic pull strip.

[0023] The top of the cooling box 1 is fixedly connected with a liquid nitrogen input port 2 and a liquid nitrogen output port 3, and the liquid nitrogen enters the cooling chamber from the liquid nitrogen input port 2 and is output from the liquid nitrogen output port 3. Specifically, the plastic strip 5 extruded by the extruder passes through the stainless steel channel tube 4 under the traction of the conveying gear 6, and the liquid nitrogen absorbs heat so that the plastic strip is rapidly cooled in the channel.

[0024] The top of the cover box 9 is fixedly connected with an air duct 10, and the end of the air duct 10 is connected with an air suction fan. Specifically, during pelletizing, the dust generated during the pelletizing process is collected under the action of the air suction fan.

[0025] The master batch particles 11 are output to the outside from the bottom of the cover box 9 .

[0026] The use process of the utility model is as follows:

[0027] Liquid nitrogen is injected into the cooling cavity formed by the cooling box 1 and the channel tube 4. The liquid nitrogen is injected into the cooling cavity from the liquid nitrogen input port 2 and output from the liquid nitrogen output port 3. The plastic pull rod 5 extruded by the extruder passes through the channel tube 4 under the traction of the conveying gear 6. The plastic pull rod 5 is rapidly cooled in the channel tube 4 and conveyed between the synchronous upper cutting wheel 7 and the synchronous lower cutting wheel 8. The synchronous upper cutting wheel 7 and the synchronous lower cutting wheel 8 rotate to cut pellets. The air duct above the cover box 9 is connected to an air suction fan. The dust generated in the pelletizing process is collected under the action of the air suction fan.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A masterbatch cold cutting device, characterized in that: The invention comprises a cooling box (1), a channel tube (4), a traction assembly, a pelletizing assembly and a cover box (9), wherein both ends of the channel tube (4) are fixedly connected to the inner wall of the cooling box (1), a cooling cavity is formed between the outer wall of the channel tube (4) and the inner wall of the cooling box (1), and the cooling cavity is filled with liquid nitrogen. A cover box (9) is fixedly connected to the side wall of the cooling box (1), and the cover box (9) is located in the output direction of the channel tube (4). The traction assembly and the pelletizing assembly are rotatably connected inside the cover box (9), the traction assembly is located in the output direction of the channel tube (4), and the pelletizing assembly is located in the output direction of the traction assembly. The plastic strips (5) extruded by the extruder are driven by the traction assembly to pass through the channel tube (4) and the pelletizing assembly to become masterbatch particles (11).

2. A masterbatch cold cutting device according to claim 1, characterized in that: The traction assembly comprises two conveying gears (6), both of which are rotatably connected in the cover box (9), the plastic pull strip (5) is arranged between the two conveying gears (6), and the ends of the two conveying gears (6) contact and pull the plastic pull strip (5) to be transported to the pelletizing assembly, and the conveying gears (6) are driven by a motor.

3. A masterbatch cold cutting device according to claim 2, characterized in that: The pelletizing assembly comprises a synchronous upper cutting wheel (7) and a synchronous lower cutting wheel (8), the synchronous upper cutting wheel (7) and the synchronous lower cutting wheel (8) are both rotatably connected in the cover box (9), the synchronous upper cutting wheel (7) and the synchronous lower cutting wheel (8) are driven by a motor, the plastic pull strip (5) is arranged between the synchronous upper cutting wheel (7) and the synchronous lower cutting wheel (8), and the synchronous upper cutting wheel (7) and the synchronous lower cutting wheel (8) are engaged to crush the plastic pull strip.

4. A masterbatch cold cutting device according to claim 1, characterized in that: A liquid nitrogen input port (2) and a liquid nitrogen output port (3) are fixedly connected to the top of the cooling box (1); liquid nitrogen enters the cooling chamber through the liquid nitrogen input port (2) and is output from the liquid nitrogen output port (3).

5. A masterbatch cold cutting device according to claim 3, characterized in that: The top of the cover box (9) is fixedly connected to an air duct (10), and the end of the air duct (10) is connected to an air suction fan.

6. A masterbatch cold cutting device according to claim 5, characterized in that: The master batch particles (11) are output to the outside from the bottom of the cover box (9).

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