CN203830451U - Extrusion device - Google Patents

Abstract

An extrusion device comprises a first die and a second die, wherein the first die comprises a base and a convex core fixedly arranged on the base, a material injection hole is formed in the base, and a C-shaped drainage groove communicated with the material injection hole is formed in the core; the second die is provided with a cavity for accommodating the core, and the shape of the cavity is matched with that of the core. During extrusion, the mold core is accommodated in the mold cavity in a matching manner, and materials to be molded enter the C-shaped drainage groove from the material injection hole to form a fixed cylinder with an opening, so that the finished product rate is high, the production cost is reduced, and the mass production is facilitated.

Description

extrusion device

technical field

The utility model relates to the field of molds, in particular to an extrusion device.

Background technique

With the increasingly intensified competition in the aluminum alloy profile market, many aluminum alloy profile manufacturers have invested a lot of energy in the procurement, use, maintenance and management of extrusion dies, which is a very good phenomenon. However, in actual production, some molds failed to reach the predetermined output during extrusion, and in severe cases, they were scrapped ahead of schedule if they were extruded less than 20 or put on the machine less than 2 times. Realize its due benefits, and at the same time, the products formed by its mold are also easy to be scrapped together with the mold. This phenomenon is common in many domestic aluminum profile production enterprises, which not only causes a lot of economic losses, but also wastes resources.

Utility model content

Based on this, it is necessary to provide an extrusion device for the traditional technical problems, which is conducive to improving the yield of products and reducing production costs.

An extrusion device comprising:

The first mold includes a base and a protruding core fixed on the base, the base is provided with an injection hole, and the core is provided with a C-shaped mold that communicates with the injection hole. drains; and

The second mold is provided with a cavity for accommodating the core, and the shape of the cavity matches the shape of the core.

In one of the embodiments, a drainage channel communicating with the drainage groove and the injection hole is opened on the core.

In one of the embodiments, there are multiple drainage channels, and each drainage channel has the same width.

In one of the embodiments, there are multiple drainage grooves, and two adjacent drainage grooves are connected.

In one of the embodiments, a diversion channel connecting two adjacent diversion grooves is opened on the core.

In one of the embodiments, the injection hole includes a straight section and a buffer section extending outward from the end of the straight section, and the buffer section communicates with the drainage groove.

In one of the embodiments, the buffer portion is bowl-shaped.

In one of the embodiments, the injection hole further includes a drainage part, the drainage part is located at the side of the direct current part and the buffer part, and the drainage part is connected with the direct current part and the buffer part, so The drainage part communicates with the drainage groove.

In one of the embodiments, the inner diameter of the drainage groove is less than 10 mm.

In summary, the extrusion device of the present invention includes a first mold and a second mold. The first mold includes a base and a protruding core fixed on the base. There is a C-shaped drainage groove connected with the injection hole; the second mold is provided with a cavity for accommodating the core. During extrusion, the core is matched and accommodated in the cavity, and the material to be formed enters the C-shaped drainage groove from the injection hole to form a fixed cylinder with an opening. The yield is high, the production cost is reduced, and it is conducive to mass production.

Description of drawings

Fig. 1 is an exploded view of an extrusion device according to an embodiment;

Fig. 2 is another perspective perspective view of the first die of the extrusion device shown in Fig. 1;

Fig. 3 is the front view of the first mold shown in Fig. 2;

Fig. 4 is the structural representation of the injection hole of the utility model;

Fig. 5 is another perspective perspective view of the second mold of the extrusion device;

The reference signs are explained as follows:

10 extrusion devices,

100 first mold, 110 base, 120 core, 130 injection hole, 131 direct current part, 132 buffer part, 133 drainage part, 140 drainage groove, 141 diversion channel, 150 drainage channel,

200 second mold, 210 cavity.

Detailed ways

In order to further understand the features, technical means, and specific objectives and functions of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Please refer to FIG. 1 , the extrusion device 10 includes a first mold 100 and a second mold 200 . The cross sections of the first mold 100 and the second mold 200 are both circular. The first mold 100 is matched with the second mold 200 for use. During operation, the material to be formed is extruded by the first mold 100 and the second mold 200 to form a product with a specific structure.

Referring to FIGS. 2 and 3 , the first mold 100 includes a base 110 and a protruding core 120 fixedly disposed on the base 110 . The base 110 and the core 120 are integrally formed. The base 110 is in the shape of a round pie.

Please also refer to FIG. 4 , the base 110 is provided with a filling hole 130 . In this embodiment, the injection hole 130 includes a straight-flow portion 131 and a buffer portion 132 extending outward from the end of the straight-flow portion 131 , and the buffer portion 132 communicates with the drainage groove 140 . The buffer portion 132 is bowl-shaped, and may also be an isosceles trapezoid, that is, the sidewall of the buffer portion 132 may be arc-shaped or planar. The direct-current portion 131 has a straight cylindrical shape. The buffer portion 132 communicates with the drainage groove 140 . The material to be formed first enters the buffer section 132 through the straight section 131 . The buffer part 132 is used to store the buffer material to ensure that the material in each injection hole 130 enters the drainage groove 140 at a uniform and equal flow rate, so that the pressure of the material in the injection hole 130 from all directions outside the drainage groove 140 cancels each other out, preventing The mold is deformed due to high-pressure extrusion, and at the same time, the density of each part of the formed profile is equalized, and the structural strength of the profile is improved.

Further, the injection hole 130 also includes a drainage part 133, the drainage part 133 is located at the side of the direct current part 131 and the buffer part 132, the drainage part 133 is connected with the direct current part 131 and the buffer part 132, and the drainage part 133 is connected with the drainage groove 140 . The side part of the drainage part 133 away from the direct current part 131 and the axial direction of the direct current part 131 form a slope with a certain angle. Where it is used to form a fixed cylinder, the structural strength of the fixed cylinder is improved.

A C-shaped drainage groove 140 communicating with the injection hole 130 is opened on the core 120 . The inner diameter of the drainage groove 140 is less than 10 mm.

There are multiple injection holes 130 , and the injection holes 130 are located around the drainage groove 140 .

There are multiple drainage grooves 140, and two adjacent drainage grooves 140 are connected. The core 120 is also provided with a guide channel 141 communicating with two adjacent guide grooves 140 .

Of course, the number of drainage grooves 140 can also be one.

In other embodiments, the core 120 is further provided with a drainage channel 150 communicating with the drainage groove 140 and the injection hole 130 . There are multiple drainage channels 150, and the width of each drainage channel 150 is the same, which ensures that the material flow rate through each drainage channel 150 remains the same, so that each part of the formed profile has the same density, and the product has a relatively high density. Great structural strength.

Referring to FIG. 5 , the second mold 200 defines a cavity 210 for accommodating the core 120 , and the shape of the cavity 210 matches the shape of the core 120 .

In summary, the utility model includes a first mold 100 and a second mold 200, the first mold 100 includes a base 110 and a protruding core 120 fixedly arranged on the base 110, the base 110 is provided with a material injection hole 130 , The core 120 is provided with a C-shaped drainage groove 140 communicating with the injection hole 130 ; the second mold 200 is provided with a cavity 210 for accommodating the core 120 . During extrusion, the core 120 is matched and accommodated in the cavity 210, and the material to be formed enters the C-shaped drainage groove 140 from the injection hole 130 to form a fixed cylinder with an opening. The yield is high, and the production cost is reduced, which is beneficial to Mass production.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (9)

1. An extrusion device, characterized in that, comprising: The first mold includes a base and a protruding core fixed on the base, the base is provided with an injection hole, and the core is provided with a C-shaped mold that communicates with the injection hole. drains; and The second mold is provided with a cavity for accommodating the core, and the shape of the cavity matches the shape of the core. the 2 . The extrusion device according to claim 1 , wherein a drainage channel connecting the drainage groove and the injection hole is opened on the core. 3 . the 3 . The extrusion device according to claim 2 , wherein there are multiple drainage channels, and the width of each drainage channel is the same. 4 . the 4. The extrusion device according to claim 1, characterized in that there are multiple drainage grooves, and two adjacent drainage grooves are connected. the 5 . The extrusion device according to claim 4 , wherein a diversion channel connecting two adjacent diversion grooves is opened on the core. 6 . the 6 . The extrusion device according to claim 1 , wherein the injection hole comprises a straight-flow portion and a buffer portion extending outward from the end of the straight-line portion, and the buffer portion is connected with the drainage The slots are connected. the 7. The extrusion device according to claim 6, wherein the buffer portion is bowl-shaped. the 8. The extrusion device according to claim 6, characterized in that, the injection hole further comprises a drainage part, the drainage part is located at the side of the straight-flow part and the buffer part, the drainage part and the The direct current part communicates with the buffer part, and the drainage part communicates with the drainage groove. the 9. The extrusion device according to claim 1, characterized in that the inner diameter of the drainage groove is less than 10 mm. the