A cooling device for plastic material production
By designing telescopic transport joists in the plastic particle cooling device, multi-stage cooling is achieved using upper and lower conveyor belts and cooling pipes, and combining transition conveyor plates and tooth-shaped structures to break up the material stack, the problems of low cooling efficiency and large area in the prior art are solved, and the effects of efficient cooling and space saving are achieved.
Patent Information
- Application Number
- CN202421376910.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The existing air-cooling method occupies a large area during the cooling process of plastic particles, has low cooling efficiency, and the plastic pellet stack is prone to cause internal temperature to not easily dissipate, and the cooling line needs to be extended to provide cooling effect.
A telescopic transport joists are designed, including two-layer conveyor belts distributed up and down and corresponding cooling pipes. Multi-stage cooling is achieved using the space in the vertical direction, reducing the area occupied in the horizontal direction, and breaking up the plastic pellet stack through the transition conveyor plate and toothed structure to improve cooling efficiency.
The cooling effect is improved and the area occupied is reduced. By dispersing the plastic pellet pile, internal heat dissipation is promoted and the cooling efficiency of plastic pellets is improved.
Smart Images
Figure CN222712808U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of plastic particle processing, in particular to a cooling device for plastic particle production. Background Art
[0002] Plastic particles, also known as plastic masterbatches and plastic particles, refer to granular plastics, which are generally divided into more than 200 types and can be subdivided into thousands of types. With the development of the plastics industry, people's requirements for plastics are getting higher and higher, among which antistatic ability has become one of the requirements for plastics.
[0003] At present, the processing of plastic particles generally includes multiple links such as material selection and batching, melt extrusion, granulation, cooling, screening and packaging, and each link has an important impact on the quality and performance of the final product. In the cooling process, the plastic particles after extrusion molding need to be cooled to gradually harden them, thereby forming high-quality plastic particles with good particle size. The existing cooling methods mostly use water cooling or air cooling.
[0004] When using air cooling to cool plastic particles, it is generally achieved by combining a conveyor belt with an air duct, that is, the extruded plastic particles are transported on the conveyor belt, and when the conveyor belt passes through the air duct, the air duct is used to cool the plastic particles on the conveyor belt. In this cooling method, in order to improve the cooling effect, multiple sections of air ducts need to be set up for cooling, which will result in the entire conveyor belt being longer and occupying a large area; in addition, the plastic particles that have just been extruded have a relatively high temperature, and the plastic particles transported on the conveyor belt are often in the form of a pile, which easily makes it difficult for the internal temperature to dissipate, which also leads to the need to extend the cooling line to provide a cooling effect. Utility Model Content
[0005] The technical problem to be solved by the utility model is to provide a cooling device for plastic material production with good cooling effect and small occupied area.
[0006] In order to solve the above technical problems, the technical solution of the utility model is: a telescopic transport joist, the innovation of which is: comprising:
[0007] A cooling box, which is a hollow rectangular parallelepiped structure, has a cooling cavity for cooling plastic particles, a feeding port and a discharging port are provided on one side of the cooling box, and two layers of conveyor belts are provided in the cooling box, and the conveying directions of the two layers of conveyor belts are opposite;
[0008] A cooling pipe is also arranged above each layer of conveyor belt, and a plurality of cooling nozzles distributed along the conveying direction of the conveyor belt are arranged on the cooling pipe, and the cooling nozzles are directly facing the conveyor belt;
[0009] A transition conveyor plate is arranged between the discharge side of the upper conveyor belt and the feed side of the lower conveyor belt to convert and convey the plastic particles, and the transition conveyor plate is inclined from top to bottom gradually toward the direction of the lower conveyor belt.
[0010] Furthermore, the transition conveying plate is an arc-shaped plate, and the arc-shaped opening direction of the transition conveying plate faces upward.
[0011] Furthermore, the upper end surface of the transition conveying plate has a plurality of protruding tooth-shaped structures distributed in parallel.
[0012] The advantages of the utility model are as follows: the cooling device of the utility model cools the plastic particles by arranging upper and lower distributed conveyor belts on both sides and corresponding cooling pipes, utilizes the space in the vertical direction to realize multi-stage cooling, reduces the occupied area in the horizontal direction, and cooperates with a transition conveyor plate to realize switching. In the process of plastic particles falling, the plastic particle pile can also be dispersed, so that the internal plastic particles can be better cooled.
[0013] The transition conveyor plate is designed as an arc-shaped plate with an opening facing upward. When the plastic particles fall from the upper conveyor belt to the transition conveyor plate, it can play a gathering role and prevent the plastic particles from falling directly from the side of the transition conveyor plate into the cooling box.
[0014] By arranging a toothed structure on the transition conveyor plate, when the plastic particles fall onto the transition conveyor plate, the protruding toothed structure is used to break up the plastic particle pile, thereby improving the breaking effect and making the plastic particle pile more dispersed, thus avoiding long-term aggregation and the inability to dissipate heat inside. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of a cooling device for plastic material production according to the present invention.
[0016] Figure 2 It is a schematic diagram of the transition conveying plate in the utility model. DETAILED DESCRIPTION
[0017] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.
[0018] like Figure 1-Figure 2 A cooling device for plastic material production shown in FIG.
[0019] A cooling box 1 is a hollow rectangular structure, and a cooling cavity 11 for cooling plastic particles is provided in the cooling box 1. A feed port 12 and a discharge port 13 which are connected to the cooling cavity 11 and are distributed up and down are provided on the same side of the cooling box 1. Two layers of conveyor belts distributed up and down are installed in the cooling box 1, which are an upper conveyor belt 14 and a lower conveyor belt 15, respectively, and the conveying directions of the upper conveyor belt 14 and the lower conveyor belt 15 are opposite.
[0020] A cooling pipe 2 is also provided above each layer of conveyor belts. The cooling pipe 2 extends along the conveying direction of the conveyor belts. A plurality of cooling nozzles 21 distributed along the conveying direction of the conveyor belts are provided on the cooling pipe 2, and each cooling nozzle 21 faces the upper conveyor belt 14 or the lower conveyor belt 15. The cooling pipe 2 is connected to the outside of the cooling box 1 through a hose and is connected to a cold source.
[0021] A transition conveyor plate 3 is arranged between the discharge side of the upper conveyor belt 14 and the feed side of the lower conveyor belt 15, and is used for converting and conveying plastic particles. The transition conveyor plate 3 is fixed to the inside of the cooling box 1 by a connecting rod, and the inclination direction of the transition conveyor plate 3 is gradually inclined from top to bottom toward the direction close to the lower conveyor belt 15.
[0022] like Figure 2 As shown in the schematic diagram, the transition conveyor plate 3 is an arc-shaped plate, and the arc-shaped opening of the transition conveyor plate 3 is facing upward. The transition conveyor plate 3 is designed as an arc-shaped plate with an opening facing upward, so that when the plastic particles fall from the upper conveyor belt 14 to the transition conveyor plate 3, it can play a role of convergence, thereby preventing the plastic particles from falling directly from the side of the transition conveyor plate 3 into the cooling box 1.
[0023] The upper end surface of the transition conveyor plate 3 is provided with a plurality of protruding tooth-shaped structures 31 distributed in parallel. By providing the tooth-shaped structures 31 on the transition conveyor plate 3, when the plastic particles fall onto the transition conveyor plate 3, the protruding tooth-shaped structures 31 are used to break up the plastic particle pile, thereby improving the breaking effect, so that the plastic particle pile can be better dispersed, and the internal heat dissipation failure caused by long-term aggregation can be avoided.
[0024] When cooling the plastic particles, the extruded plastic particles are first conveyed into the cooling box 1 via the upper conveyor belt 14. When passing through the cooling pipe 2, the plastic particles are cooled for the first time by the cooling nozzle 21. When the plastic particles are conveyed to the discharge side of the upper conveyor belt 14, the plastic particles will fall from the upper conveyor belt 14 to the transition conveyor plate 3. The toothed structure 31 on the transition conveyor plate 3 is used to break up the plastic particles. The broken plastic particles fall onto the lower conveyor belt 15. As the lower conveyor belt 15 is conveyed, the plastic particles are cooled for the second time by the cooling nozzle 21 of the lower layer. The cooled plastic particles are sent out of the cooling box 1 by the lower conveyor belt 15 and sent to the next process.
[0025] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A cooling device for plastic material production, characterized in that: include A cooling box, which is a hollow rectangular parallelepiped structure, has a cooling cavity for cooling plastic particles, a feeding port and a discharging port are provided on one side of the cooling box, and two layers of conveyor belts are provided in the cooling box, and the conveying directions of the two layers of conveyor belts are opposite; A cooling pipe is also arranged above each layer of conveyor belt, and a plurality of cooling nozzles distributed along the conveying direction of the conveyor belt are arranged on the cooling pipe, and the cooling nozzles are directly facing the conveyor belt; A transition conveyor plate is arranged between the discharge side of the upper conveyor belt and the feed side of the lower conveyor belt to convert and convey the plastic particles, and the transition conveyor plate is inclined from top to bottom gradually toward the direction of the lower conveyor belt.
2. The cooling device for plastic material production according to claim 1, characterized in that: The transition conveying plate is an arc-shaped plate, and the arc-shaped opening direction of the transition conveying plate faces upward.
3. The cooling device for plastic material production according to claim 1 or 2, characterized in that: The upper end surface of the transition conveying plate has a plurality of protruding tooth-shaped structures distributed in parallel.