CN215095090U

CN215095090U - Acrylate rubber vacuum briquetting device

Info

Publication number: CN215095090U
Application number: CN202120234500.7U
Authority: CN
Inventors: 李照华; 唐燕; 唐坤明
Original assignee: Sichuan Qinglong Acrylate Rubber Co ltd
Current assignee: Sichuan Qinglong Acrylate Rubber Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-12-10
Anticipated expiration: 2031-01-27

Abstract

The utility model relates to a technical field of rubber production facility particularly, relates to an acrylic rubber vacuum briquetting device, including mould and extrusion piece. The die is groove-shaped. The extrusion block is matched with the die so that the extrusion block can be attached to the inner wall of the die to slide. The upper part of the inner wall of the mould is provided with a vent hole. When in use, the rubber particles are firstly placed in the die. Then, the extrusion block gradually stretches into the interior of the mold, and then extrudes the rubber particles in the mold. When the rubber particles are fully placed in the mold, a large amount of air is left in the mold due to gaps among the rubber particles. When the extrusion block is gradually extruded, air is exhausted from the vent hole above the die. When the extrusion block moves and passes through the position of the die where the vent hole is provided, the air inside the die is substantially exhausted. Continued squeezing will not expel a significant amount of air. Through the mode, air in the rubber can be well discharged, so that the rubber block is more compact.

Description

Acrylate rubber vacuum briquetting device

Technical Field

The utility model relates to a technical field of rubber production facility particularly, relates to an acrylic rubber vacuum briquetting device.

Background

After the acrylic rubber is extruded, dehydrated and dried, the acrylic rubber is in a loose and irregular state and needs to be manufactured into a more regular block for packaging and selling.

The existing rubber briquetting machine uses mechanical pressure to extrude rubber into compact blocks in a mould. The pressure required for extruding the loose colloidal particles into the compact colloidal block is very high, and if the air in the colloidal particles is blocked in the gel, the air can expand after the pressure is eliminated, so that the swelling of the colloidal block is not compact.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an acrylic rubber vacuum briquetting device, it can effectual exhaust air, avoids the rubber piece swell.

The embodiment of the utility model discloses a realize through following technical scheme:

an acrylate rubber vacuum briquetting device comprises a die and an extrusion block; the die is in a groove shape; the extrusion block is matched with the die to enable the extrusion block to be capable of sliding along the inner wall of the die; and the upper part of the inner wall of the mould is provided with a vent hole.

Further, the distance between the vent hole and the bottom of the mold is greater than one half of the depth of the mold.

Further, the aperture of the plurality of vent holes on the inner wall of the mold is gradually reduced from the opening of the mold to the bottom.

Further, an electric heating wire is arranged inside the side wall of the mold.

Further, the mould is provided with a plurality of mould bodies; the plurality of vent holes of each die are communicated with the vent holes of the two dies through pipelines so that the vent holes of the plurality of dies are connected into a ring; and each die is provided with an extrusion block in a matching way.

Further, a control valve is arranged on a pipeline between every two adjacent molds.

Further, a vacuum pump is arranged on a pipeline between every two adjacent molds; the air pumping directions of the vacuum pumps are the same.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

the utility model discloses an during the use of acrylic ester rubber vacuum briquetting device, place the rubber grain inside the mould earlier. Then, the extrusion block gradually stretches into the interior of the mold, and then extrudes the rubber particles in the mold. When the rubber particles are fully placed in the mold, a large amount of air is left in the mold due to gaps among the rubber particles. When the extrusion block is gradually extruded, air is exhausted from the vent hole above the die. When the extrusion block moves and passes through the position of the die where the vent hole is provided, the air inside the die is substantially exhausted. Continued squeezing will not expel a significant amount of air. Through the mode, air in the rubber can be well discharged, so that the rubber block is more compact.

In actual use, the distance between the vent hole and the bottom of the mold is determined according to the type or the form of rubber, so that when the extrusion block passes through the last vent hole, air in the mold can be well discharged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an acrylate rubber vacuum briquetting device provided by the utility model;

fig. 2 is a schematic view of a number of mold assemblies.

Icon: 1-mould, 11-vent hole, 2-extrusion block, 3-electric heating wire, 4-pipeline, 41-control valve and 5-vacuum pump.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of this application is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific orientation, be constructed in a specific orientation and be operated is not to be construed as limiting the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in fig. 1 and fig. 2, the utility model provides an acrylic rubber vacuum briquetting device, which comprises a die 1 and an extrusion block 2. The mould 1 is rectangular and groove-shaped. The extrusion block 2 is matched with the die 1, and the size of the extrusion block is slightly smaller than that of the inside of the die 1, so that the extrusion block 2 can be attached to the inner wall of the die 1 to slide. When the extrusion block 2 extends into the die 1, the rubber particles in the die 1 can be extruded into a block shape. The upper part of the inner wall of the mould 1 is provided with a vent hole 11.

The utility model discloses an during the use of acrylate rubber vacuum briquetting device, place the rubber grain in mould 1 inside earlier. Subsequently, the extrusion block 2 gradually extends into the die 1, and then extrudes the rubber particles in the die 1. When the mold 1 is filled with rubber particles, a large amount of air remains in the mold 1 due to gaps between the rubber particles. As the ram 2 is progressively squeezed, air is expelled through the vent holes 11 above the die 1. When the extrusion block 2 moves and passes through the site of the die 1 where the vent holes 11 are provided, the air inside the die 1 is substantially evacuated. Continued squeezing will not expel a significant amount of air. Through the mode, air in the rubber can be well discharged, so that the rubber block is more compact.

In practical use, the distance between the vent holes 11 and the bottom of the mold 1 is determined according to the type or form of rubber, so that when the extrusion block 2 passes through the last vent hole 11, air in the mold 1 can be well exhausted.

The distance of the vent hole 11 from the bottom of the mold 1 may be set to be greater than one-half of the depth of the mold 1. For most cases, the amount of rubber compression set will not exceed half of its original volume. This arrangement allows air to be exhausted well.

In this embodiment, the apertures of the plurality of vent holes 11 on the inner wall of the mold 1 gradually decrease from the opening of the mold 1 to the bottom. At the beginning of extrusion, the air in the die 1 is large and needs to be rapidly discharged. Meanwhile, the rubber is subjected to a small extrusion force at this time and cannot be extruded into the vent holes 11. Along with the continuous extrusion of the extrusion block 2, the extrusion force applied to the rubber is gradually increased. At this time, if the vent hole 11 is large, it may cause the rubber to be pressed into the vent hole 11. Therefore, the aperture of the plurality of vent holes 11 on the inner wall of the die 1 is gradually reduced from the opening of the die 1 to the bottom, so that the problem can be effectively avoided, and simultaneously, the air can be well discharged in each stage of extrusion.

In this embodiment, the heating wire 3 is disposed inside the sidewall of the mold 1. The heating wire 3 can heat rubber for rubber melts because of being heated and extrusion themogenesis in the extrusion process, and then makes the block rubber more closely knit. Meanwhile, the rubber can be directly heated to be molten through the electric heating wire 3 and then extruded.

In this embodiment, the mold 1 is provided with a plurality of molds. The plurality of vent holes 11 of each mould 1 are communicated with the vent holes 11 of the two moulds 1 through the pipelines 4, so that the vent holes 11 of the plurality of moulds 1 are connected into a ring. Each die 1 is provided with an extrusion block 2 in a matching manner. As shown in fig. 2, when one of the dies 1 is in the pressing state, the hot air inside the die is extruded and exhausted to the adjacent die 1, thereby heating the rubber in the adjacent die 1. This effectively avoids the waste of heat caused by the direct discharge of hot air.

In this embodiment, the control valves 41 are disposed in the conduits 4 between two adjacent molds 1. In practical use, the working time sequence of a plurality of dies 1 is adjusted, so that when the former die 1 extrudes, the latter die 1 starts to preheat. By controlling the on-off of each control valve 41, the hot air can be continuously recycled in a plurality of moulds 1.

In this embodiment, the vacuum pumps 5 are disposed in the pipelines 4 between two adjacent molds 1. The pumping directions of the vacuum pumps 5 are the same. The auxiliary air extraction of the vacuum pump 5 can better extract the air in the mold 1.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an acrylic rubber vacuum briquetting device which characterized by: comprises a die (1) and an extrusion block (2); the mould (1) is groove-shaped; the extrusion block (2) is arranged in a manner of being matched with the die (1) so that the extrusion block (2) can be attached to the inner wall of the die (1) to slide; and the upper part of the inner wall of the die (1) is provided with a vent hole (11).

2. The acrylate rubber vacuum block device according to claim 1, wherein: the distance between the vent hole (11) and the bottom of the mold (1) is more than one half of the depth of the mold (1).

3. The acrylate rubber vacuum block device according to claim 2, wherein: the pore diameters of the plurality of vent holes (11) on the inner wall of the mould (1) are gradually reduced from the opening of the mould (1) to the bottom.

4. The acrylate rubber vacuum block device according to claim 3, wherein: and an electric heating wire (3) is arranged inside the side wall of the mould (1).

5. The acrylate rubber vacuum block device according to claim 4, wherein: the mould (1) is provided with a plurality of moulds; the plurality of vent holes (11) of each mould (1) are communicated with the vent holes (11) of the two moulds (1) through pipelines (4), so that the vent holes (11) of the plurality of moulds (1) are connected into a ring; each die (1) is provided with an extrusion block (2) in a matching manner.

6. The acrylic rubber vacuum block device according to claim 5, wherein: and the pipelines (4) between two adjacent moulds (1) are provided with control valves (41).

7. The acrylate rubber vacuum block device according to claim 4, wherein: a vacuum pump (5) is arranged on each pipeline (4) between every two adjacent molds (1); the air pumping directions of the vacuum pumps (5) are the same.