CN215095089U

CN215095089U - Acrylate rubber briquetting device

Info

Publication number: CN215095089U
Application number: CN202120234142.XU
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 briquetting device, including extrusion piece, mould and drawing of patterns subassembly. 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 stripper assembly includes an expansion tube and an expansion rod. The expansion pipe is arranged on the extrusion surface of the extrusion block in a protruding mode. The expansion rod is arranged in the expansion pipe in a penetrating way. The expansion link includes a large diameter section. When the large-diameter section enters the expansion pipe, the expansion pipe expands. Because the expansion pipe is arranged on the extrusion surface of the extrusion block in a protruding mode, after extrusion is completed, the expansion pipe is still located inside the rubber block. At the moment, the expansion rod is controlled, so that the large-diameter section retracts towards the inside of the expansion pipe, and the expansion pipe is expanded under the action of the expansion rod. Thereby causing the expansion tube to expand within the rubber block. This allows the expansion tube to be well connected to the rubber block. The rubber block can be taken out from the mold step by step, so that the demolding is convenient.

Description

Acrylate rubber briquetting device

Technical Field

The utility model relates to a technical field of rubber production facility particularly, relates to an acrylic rubber 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 rubber extruded quickly is difficult to remove from the die because the die is slotted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an acrylate rubber briquetting device, its can be convenient take out the block rubber in the mould, make things convenient for the drawing of patterns.

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

a acrylate rubber briquetting device comprises an extrusion block, a die and a demoulding component; the die is groove-shaped; 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; the demolding assembly comprises an expansion pipe and an expansion rod; the expansion pipe is arranged on the extrusion surface of the extrusion block in a protruding manner; the expansion rod is arranged in the expansion pipe in a penetrating way; the expansion rod comprises a large-diameter section; when the large-diameter section enters the expansion pipe, the expansion pipe expands.

Further, the expansion pipe comprises a plurality of expansion sheets; the expansion pieces are arranged at one end of the expansion pipe and are distributed annularly along the circumferential direction of the expansion pipe; one end of the expansion rod is matched with the expansion sheets to be in a round table shape, so that when the round table-shaped end of the expansion rod extends into the interior of the expansion pipe, the round table-shaped end of the expansion rod pushes the expansion sheets to expand.

Further, the expansion sheet is made of spring steel.

Further, the demolding assembly further comprises a demolding cylinder; the demolding cylinder is arranged in the extrusion block and connected with one end of the expansion rod.

Further, the upper part of the inner wall of the mould is provided with a vent hole; 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 acrylate rubber briquetting device, be the block rubber with the rubber granule extrusion through the extrusion piece. Because the expansion pipe is arranged on the extrusion surface of the extrusion block in a protruding mode, after extrusion is completed, the expansion pipe is still located inside the rubber block. At the moment, the expansion rod is controlled, so that the large-diameter section retracts towards the inside of the expansion pipe, and the expansion pipe is expanded under the action of the expansion rod. Thereby causing the expansion tube to expand within the rubber block. This allows the expansion tube to be well connected to the rubber block. The rubber block can be gradually taken out of the die in the process that the extrusion block moves towards the outside of the die, so that the die is convenient to demold.

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 briquetting device provided by the utility model;

FIG. 2 is an enlarged view taken at a point a in FIG. 1;

FIG. 3 is a schematic illustration of an expansion tube and expansion tube mating;

fig. 4 is a schematic view of a number of mold assemblies.

Icon: 1-extrusion block, 2-mould, 21-vent hole, 3-expansion pipe, 31-expansion sheet, 4-expansion rod, 41-large diameter section, 5-demoulding cylinder, 6-electric heating wire, 7-pipeline, 71-control valve and 8-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 figures 1-4, the utility model provides an acrylic rubber briquetting device, which comprises an extrusion block 1, a die 2 and a demoulding component. The die 2 is in the shape of a rectangular groove. The extrusion block 1 is arranged in cooperation with the die 2, and the size of the extrusion block 1 is slightly smaller than that of the inside of the die 2, so that the extrusion block 1 can slide along the inner wall of the die 2. The stripper assembly comprises an expansion tube 3 and an expansion rod 4. The expansion pipe 3 is arranged on the extrusion surface of the extrusion block 1 in a protruding way. The expansion tube 3 has an axial direction perpendicular to the extrusion surface. The expansion rod 4 is arranged in the expansion pipe 3 in a penetrating way. The expansion link 4 includes a large diameter section 41. When the large diameter section 41 enters the expansion pipe 3, the expansion rod 4 expands the expansion pipe 3.

The utility model discloses an during the use of acrylate rubber briquetting device, be the block rubber with the extrusion of rubber granule through extrusion piece 1. Because the expansion pipe 3 is arranged on the extrusion surface of the extrusion block 1 in a protruding mode, after extrusion is completed, the expansion pipe 3 is still located inside the rubber block. At this time, the expansion rod 4 is controlled so that the large diameter section 41 is retracted into the expansion pipe 3, and the expansion pipe 3 is expanded by the expansion rod 4. Thereby causing the expansion tube 3 to expand within the rubber block. This results in a good connection of the expansion tube 3 to the rubber block. The rubber block can be gradually taken out from the die 2 in the process that the extrusion block 1 moves towards the outside of the die 2, so that the demoulding is convenient.

In this embodiment, the expansion tube 3 comprises a plurality of expansion pieces 31. The expansion sheets 31 are arranged at one end of the expansion pipe 3 and are distributed annularly along the circumferential direction of the expansion pipe 3. The expansion plate 31 is made of spring steel. One end of the expansion rod 4 is matched with the expansion sheet 31 and is arranged in a circular truncated cone shape, and the small-diameter end of the expansion rod is connected with the expansion rod 4. When the expansion rod 4 moves towards the inside of the expansion pipe 3, the circular truncated cone-shaped end of the expansion rod 4 gradually extends into the inside of the expansion pipe 3, and the circular truncated cone-shaped end of the expansion rod 4 pushes the expansion sheets 31 to expand. When the expansion rod 4 moves to the outside of the expansion pipe 3, the expansion piece 31 is gradually restored by the elastic force thereof. When the expansion pipe 3 expands, the expansion pipe 3 can well pull out the rubber block; after the expansion pipe 3 is reset, the expansion pipe 3 can be easily taken out of the rubber block.

In this embodiment, the stripper assembly further comprises a stripper cylinder 5. The demoulding cylinder 5 is arranged in the extrusion block 1 and is connected with one end of the expansion rod 4. When the device is used, demoulding can be well controlled by controlling the demoulding cylinder 5.

In this embodiment, the upper portion of the inner wall of the mold 2 is provided with a vent hole 21. The distance of the vent 21 from the bottom of the mould 2 is more than half the depth of the mould 2.

When in use, the rubber particles are firstly placed in the mould 2. Subsequently, the extrusion block 1 gradually extends into the die 2, and then extrudes the rubber particles in the die 2. When the mold 2 is filled with rubber pellets, a large amount of air remains in the mold 21 due to the gaps between the rubber pellets. As the extrusion block 1 is gradually extruded, air is discharged from the vent holes 21 above the die 2. When the extrusion block 1 is moved and passes through the portion of the die 2 where the vent holes 21 are provided, the air inside the die 2 is substantially discharged. 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 21 and the bottom of the mold 2 is determined according to the type or form of rubber, so that air in the mold 2 can be well exhausted when the extrusion block 1 passes through the last vent hole 21.

The distance of the vent hole 21 from the bottom of the mold 2 may be set to be greater than one-half of the depth of the mold 2. 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 21 on the inner wall of the mold 2 gradually decrease from the opening of the mold 2 to the bottom. At the beginning of extrusion, the air in the die 2 is large and needs to be rapidly discharged. Meanwhile, the rubber is subjected to a small pressing force at this time and is not pressed into the vent hole 21. Along with the continuous extrusion of the extrusion block 1, the extrusion force applied to the rubber is gradually increased. At this time, if the vent hole 21 is large, it may cause rubber to be pressed into the vent hole 21. Therefore, the aperture of the plurality of vent holes 21 on the inner wall of the mold 2 is gradually reduced from the opening of the mold 2 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 6 is disposed inside the sidewall of the mold 2. The heating wire 6 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 heating wire 6 and then extruded.

In this embodiment, the mold 2 is provided with a plurality of molds. The plurality of vent holes 21 of each mold 2 are communicated with the vent holes 21 of the two molds 2 through the pipes 7, so that the vent holes 21 of the plurality of molds 2 are connected in a ring shape. Each die 2 is provided with an extrusion block 1 in a matching manner. As shown in fig. 4, when one of the dies 2 is in the pressing state, the hot air inside the die is extruded and exhausted to the adjacent die 2, thereby heating the rubber inside the adjacent die 2. This effectively avoids the waste of heat caused by the direct discharge of hot air.

In this embodiment, the control valves 71 are provided in the conduits 7 between two adjacent molds 2. In actual use, the working time sequence of a plurality of dies 2 is adjusted, so that when the former die 2 extrudes, the latter die 2 starts to preheat. By controlling the on-off of each control valve 71, the hot air can be continuously recycled in a plurality of moulds 2.

In this embodiment, the pipelines 7 between two adjacent molds 2 are provided with vacuum pumps 8. The pumping directions of the vacuum pumps 8 are the same. The auxiliary air extraction of the vacuum pump 8 can better extract the air in the mold 2.

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 briquetting device which characterized by: comprises an extrusion block (1), a mould (2) and a demoulding component; the mould (2) is groove-shaped; the extrusion block (1) is matched with the die (2) to enable the extrusion block (1) to be attached to the inner wall of the die (2) to slide; the demolding assembly comprises an expansion pipe (3) and an expansion rod (4); the expansion pipe (3) is arranged on the extrusion surface of the extrusion block (1) in a protruding manner; the expansion rod (4) is arranged in the expansion pipe (3) in a penetrating way; the expansion rod (4) comprises a large-diameter section (41); when the large-diameter section (41) enters the expansion pipe (3), the expansion pipe (3) expands.

2. The acrylate rubber briquetting apparatus of claim 1, wherein: the expansion pipe (3) comprises a plurality of expansion sheets (31); the expansion sheets (31) are arranged at one end of the expansion pipe (3) and are distributed annularly along the circumferential direction of the expansion pipe (3); one end of the expansion rod (4) is matched with the expansion sheets (31) and is in a round table shape, so that when the round table-shaped end of the expansion rod (4) extends into the expansion pipe (3), the round table-shaped end of the expansion rod (4) pushes the expansion sheets (31) to expand.

3. The acrylate rubber briquetting apparatus of claim 2, wherein: the expansion sheet (31) is made of spring steel.

4. The acrylate rubber briquetting apparatus of claim 2, wherein: the demoulding assembly further comprises a demoulding cylinder (5); the demolding cylinder (5) is arranged inside the extrusion block (1) and is connected with one end of the expansion rod (4).

5. The acrylate rubber briquetting apparatus of claim 4, wherein: the upper part of the inner wall of the die (2) is provided with a vent hole (21); the distance between the vent hole (21) and the bottom of the mold (2) is more than half of the depth of the mold (2).

6. The acrylate rubber briquetting apparatus of claim 5, wherein: the aperture of the plurality of vent holes (21) on the inner wall of the mould (2) is gradually reduced from the opening of the mould (2) to the bottom.

7. The acrylate rubber briquetting apparatus of claim 6, wherein: and an electric heating wire (6) is arranged inside the side wall of the mould (2).

8. The acrylate rubber briquetting apparatus of claim 7, wherein: the mould (2) is provided with a plurality of moulds; the plurality of vent holes (21) of each mould (2) are communicated with the vent holes (21) of the two moulds (2) through pipelines (7), so that the vent holes (21) of the plurality of moulds (2) are connected into a ring shape; each die (2) is provided with an extrusion block (1) in a matching way.

9. The acrylate rubber briquetting apparatus of claim 8, wherein: and control valves (71) are arranged on the pipelines (7) between every two adjacent moulds (2).

10. The acrylate rubber briquetting apparatus of claim 7, wherein: a vacuum pump (8) is arranged on each pipeline (7) between every two adjacent molds (2); the air pumping directions of the vacuum pumps (8) are the same.