CN220464705U - A strip pre-cooling device for plastic extruders - Google Patents

Abstract

The utility model relates to the technical field of extrusion equipment production, and in particular to a strip pre-cooling device for a plastic extruder, which includes two symmetrically distributed mounting plates and a number of movable seats. The four corners of the two mounting plates are fixed by bolts. Connection, the inside of the mounting plate is provided with a guide chute and a strip through hole, the outside of the movable seat is provided with a guide block that matches the guide chute, the inside of the movable seat is provided with a semi-cylindrical groove, and the movable seat is located in the semi-circular groove A semicircular tubular spray hood is embedded and fixed at the top. One side of the semicircular tubular spray hood is evenly distributed with atomizing nozzles, and the other side is connected to a water supply pipe. This utility model uses two opposite semi-circular tubular spray hoods to form a cooling channel. The distance between two adjacent cooling channels can be adjusted according to needs. Water can be evenly atomized and sprayed throughout the cooling channel to achieve material alignment. The strips are uniformly pre-cooled to effectively prevent the strips from deforming due to uneven cooling.

Description

A strip pre-cooling device for plastic extruders

Technical field

The utility model relates to the technical field of extrusion equipment production, and in particular to a strip pre-cooling device for a plastic extruder.

Background technique

In the plastic extrusion production process, the material will first be melted by the extruder at high temperature and then extruded to obtain higher-temperature strips. Since the extruded strips can only be fed into the pelletizer for pelletizing after cooling down and hardening, and then pelletized. Next step of processing. The traditional cooling device does not have a pre-cooling device, allowing the newly extruded molten plastic strips to directly enter the cooling water. Due to the effect of water pressure, the unhardened plastic strips will be extruded and deformed to a certain extent, thus affecting the later pelletizing process. The molding particle size makes the particle size of the product different, which affects the quality of the product.

To this end, the patent specification with publication number CN211566905U discloses a cooling device for a plastic extruder, which includes a plastic extruder and a cooling water tank arranged on the rear side of the plastic extruder. The rear surface of the plastic extruder is provided with The plastic strip extrusion outlet and the cooling water tank are a rectangular tank body, which is arranged directly behind the lower side of the plastic strip extrusion outlet. A roller is provided in the slot, and the rollers are rotated and installed on both sides of the cooling water tank. The plastic strip extrusion water tank is The plastic strip extruded from the outlet passes under the roller, and a water-absorbing cooling machine is installed on the left side of the cooling water tank; an atomizing nozzle is installed directly below the plastic strip extrusion port of the plastic extruder, and the spray is sprayed through it The water mist is used to pre-cool the surface of the high-temperature plastic strips extruded from the plastic strip extruder to prevent them from directly entering the bottom of the water tank and causing them to deform under the water pressure, thereby affecting the quality of the final product.

However, the cooling device of this plastic extruder still has shortcomings found during use. It relies on the water mist sprayed from the atomizing nozzle to pre-cool the surface of the high-temperature plastic strips extruded in the plastic strip extruder. The atomizing nozzle can only spray and pre-cool one side of the material strip. The material strip is prone to deformation due to uneven cooling. Therefore, it needs to be optimized and improved.

Utility model content

The purpose of this utility model is to overcome the above-mentioned problems existing in the traditional technology and provide a strip pre-cooling device for a plastic extruder.

In order to achieve the above technical purpose and achieve the above technical effect, the present utility model is realized through the following technical solutions:

A material strip pre-cooling device for a plastic extruder includes two symmetrically distributed installation plates and a number of movable seats. The four corners of the two installation plates are fixedly connected by bolts. There are symmetrical holes on the inside of the installation plate. There are two guide chutes distributed side by side. The mounting plate has a strip through hole between the two guide chutes. The outside of the movable seat is provided with a guide block that matches the guide chute. The movable seat has There is a semi-cylindrical groove on the inside. The movable seat is located in the semi-circular groove and a semi-circular tubular spray hood is embedded and fixed. The exposed inner side of the semi-circular tubular spray hood is evenly distributed with atomizing nozzles connected to the inner cavity. , the other side of the semicircular tubular spray cover is connected to a water supply pipe that penetrates the movable seat and extends from the strip-shaped through hole.

Furthermore, in the strip pre-cooling device of the above-mentioned plastic extruder, the length direction of the guide chute and the strip-shaped through hole is parallel to the length direction of the mounting plate.

Furthermore, in the strip pre-cooling device of the above-mentioned plastic extruder, the cross section of the guide chute has a T-shaped structure that is wide on the inside and narrow on the outside, and the guide block is a T-shaped block that can prevent detachment.

Further, in the material strip pre-cooling device of the above-mentioned plastic extruder, among the two opposite movable seats, one movable seat is provided with a positioning protrusion on the butt surface, and the other movable seat is provided with a positioning protrusion on the butt surface. Match the positioning groove.

Further, in the material strip pre-cooling device of the above-mentioned plastic extruder, after the two opposite movable seats are butted, the two opposite semi-circular tubular spray hoods are spliced to form a device that facilitates uniform pre-cooling of the material strips. Cooling channel.

Further, in the strip pre-cooling device of the above-mentioned plastic extruder, the inner diameter of the semicircular tubular spray cover is 5-10 times the diameter of the strip, and the semicircular tubular spray cover is made of stainless steel.

The beneficial effects of this utility model are:

The utility model has a reasonable structural design. It uses two opposite semi-circular tubular spray hoods to form a cooling channel. The distance between two adjacent cooling channels can be adjusted according to needs, and the cooling channel can be evenly atomized and sprayed everywhere. Water is used to achieve uniform pre-cooling of the material strips, effectively preventing the material strips from easily deforming due to uneven cooling.

Of course, any product implementing the present invention does not necessarily need to achieve all the above advantages at the same time.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the overall three-dimensional structure of the utility model;

Figure 2 is a schematic structural diagram of the overall structure of the present utility model;

Figure 3 is an exploded schematic diagram of the structure of the utility model after omitting bolts;

Figure 4 is a schematic structural diagram of the mounting plate in the present utility model;

Figure 5 is a schematic structural diagram of the movable seat in the utility model at one angle;

Figure 6 is a schematic structural diagram of the movable seat in the utility model from another angle;

In the drawings, the parts represented by each number are listed as follows:

1-Mounting plate, 2-Bolts, 3-Guide chute, 4-Strip through hole, 5-Mobile seat, 6-Guide block, 7-Semi-circular tubular spray cover, 8-Water supply pipe.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

As shown in Figures 1 to 6, this embodiment provides a strip pre-cooling device for a plastic extruder, which includes two symmetrically distributed mounting plates 1 and a number of movable seats 5. The four corners of the two mounting plates 1 pass through Bolts 2 are used for fixed connection. Two guide chute 3 distributed side by side are symmetrically provided on the inner side of the installation plate 1. The installation plate 1 is provided with a strip through hole 4 between the two guide chute 3. The outside of the movable seat 5 is provided with a guide block 6 that cooperates with the guide chute 3. The inside of the movable seat 5 is provided with a semi-cylindrical groove. The movable seat 5 is located at the semi-circular groove with a semi-circular tubular spray cover 7 embedded and fixed. The exposed inner side of the semi-circular tubular spray cover 7 is evenly distributed with atomizing nozzles connected to the inner cavity, and the other side of the semi-circular tubular spray cover 7 is connected with a nozzle that penetrates the movable seat 5 and extends from the strip-shaped through hole 4 Water supply pipe 8.

In this embodiment, the length directions of the guide chute 3 and the strip-shaped through hole 4 are both parallel to the length direction of the mounting plate 1 .

In this embodiment, the cross section of the guide chute 3 is a T-shaped structure with a wide inside and a narrow outside, and the guide block 6 is a T-shaped block that can prevent detachment.

In this embodiment, among the two opposite movable seats 5, one movable seat 5 is provided with positioning protrusions on the butt surface, and the other movable seat 5 is provided with positioning grooves that cooperate with the positioning protrusions on the butt surface.

In this embodiment, after the two opposite movable seats 5 are butted, the two opposite semicircular tubular spray covers 7 are spliced to form a cooling channel that facilitates uniform pre-cooling of the material strips.

In this embodiment, the inner diameter of the semicircular tubular spray cover 7 is 5-10 times the diameter of the material strip, and the semicircular tubular spray cover 7 is made of stainless steel.

A specific application of this embodiment is: the structure of this device is reasonably designed. It uses two opposite semi-circular tubular spray covers 7 to form a cooling channel. The distance between two adjacent cooling channels can be adjusted according to needs. The cooling channel can evenly atomize water throughout the cooling channel to achieve uniform pre-cooling of the material strips, effectively preventing the material strips from easily deforming due to uneven cooling.

The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiment does not describe all details in detail, nor does it limit the utility model to specific implementations. Obviously, many modifications and variations are possible in light of the contents of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. A material strip pre-cooling device for a plastic extruder, which is characterized in that it includes two symmetrically distributed mounting plates and a number of movable seats. The four corners of the two mounting plates are fixedly connected by bolts. The installation The inner side of the plate is symmetrically provided with two guide chute distributed side by side. The mounting plate is provided with a strip through hole between the two guide chute. The outer side of the movable seat is provided with a guide block that matches the guide chute. , a semi-cylindrical groove is provided on the inner side of the movable seat, a semi-circular tubular spray hood is embedded and fixed in the semi-circular groove of the movable seat, and the exposed inner side of the semi-circular tubular spray hood is evenly distributed with internal The other side of the semicircular tubular spray cover is connected to a water supply pipe that penetrates the movable seat and extends from the strip-shaped through hole. 2. The material strip pre-cooling device of a plastic extruder according to claim 1, characterized in that the length direction of the guide chute and the strip-shaped through hole is parallel to the length direction of the mounting plate. 3. The material strip pre-cooling device of the plastic extruder according to claim 1, characterized in that: the cross section of the guide chute has a T-shaped structure with a wide inside and a narrow outside, and the guide block is capable of preventing detachment. T-shaped block. 4. The material strip pre-cooling device of the plastic extruder according to claim 1, characterized in that: among the two opposite movable seats, one movable seat is provided with a positioning protrusion on the butt surface, and the other movable seat is provided with a positioning protrusion. Positioning grooves matching the positioning protrusions are provided on the docking surface. 5. The material strip pre-cooling device of a plastic extruder according to claim 1, characterized in that: after the two opposite movable seats are butted, the two opposite semi-circular tubular spray hoods are spliced to form a convenient Cooling channel for uniform pre-cooling of material strips. 6. The material strip pre-cooling device of the plastic extruder according to claim 1, characterized in that: the inner diameter of the semi-circular tubular spray cover is 5-10 times the diameter of the material strip, and the semi-circular tubular spray cover The shower cover is made of stainless steel.