CN212093774U

CN212093774U - Liquid nitrogen cooling constant-temperature extrusion device for mold

Info

Publication number: CN212093774U
Application number: CN202020442545.9U
Authority: CN
Inventors: 黄长远; 王育生
Original assignee: FUJIAN MINFA ALUMINIUM Inc
Current assignee: FUJIAN MINFA ALUMINIUM Inc
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-12-08
Anticipated expiration: 2030-03-31

Abstract

The utility model relates to an aluminum product former field, concretely relates to mould liquid nitrogen cooling constant temperature extrusion device, including frame, extrusion die mechanism, rack-mounted liquid nitrogen jar, output hose and be located the shower nozzle of output hose free end, extrusion die mechanism locates in the frame, and the mould body is installed to its output, the die pad is installed to mould body and the relative one side of extrusion die mechanism, the mould body is fixed by a mould cover with the outside of die pad, the hole of inlaying that is used for installing the shower nozzle is seted up to the outside of mould cover, seted up an edge on the inside wall of mould cover the circumference groove of mould cover circumference distribution, the circumference groove with the hole of inlaying is linked together, set up a plurality of evenly distributed's axial groove on the inside wall of mould cover, each the axial groove with the circumference groove communicates mutually. The utility model discloses be applied to in the extrusion technology of aluminium alloy.

Description

Liquid nitrogen cooling constant-temperature extrusion device for mold

Technical Field

The utility model relates to an aluminum product former field, concretely relates to mould liquid nitrogen cooling constant temperature extrusion device.

Background

In the prior art, chinese patent CN204381100U, whose application date is 2014, 12, 25 discloses an aluminum profile die device with liquid nitrogen cooling, which comprises an extrusion die, an aluminum profile, a lower die, a lower fixing plate, a lower die pad, a lower support, a first-level lower backing plate, a second-level lower backing plate, a lower backing plate support, a forming aluminum profile, a second-level upper backing plate, a first-level upper backing plate, a liquid nitrogen nozzle, a hose, a liquid nitrogen cylinder support, a liquid nitrogen cylinder, a beam support, an upper fixing plate, an upper die and a cooling ring groove, wherein one end of the hose is connected with the liquid nitrogen cylinder, the other end of the hose is connected with the liquid nitrogen nozzle, the liquid nitrogen nozzle is installed in the upper fixing plate, the upper die is installed at the lower fixing plate, the lower die is installed at the upper end of the lower fixing plate, the lower fixing plate and the first-level, the lower backing plate support is provided with the second-level lower backing plate, and the aluminum profile is arranged in the extrusion die. It discloses a device that adopts liquid nitrogen to carry out the cooling in the extrusion process, when adopting this equipment, does not carry out holistic cooling to the mould, can not accomplish the continuity production of longer time, influences production efficiency.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a mould liquid nitrogen cooling constant temperature extrusion device has solved the not high problem of production efficiency.

In order to achieve the purpose, the utility model is realized by the following technical proposal:

the utility model provides a mould liquid nitrogen cooling constant temperature extrusion device, includes frame, extrusion die mechanism, rack-mounted liquid nitrogen jar, output hose and is located the shower nozzle of output hose free end, extrusion die mechanism locates in the frame, and the mould body is installed to its output, the mould pad is installed with the relative one side of extrusion die mechanism to the mould body, the mould body is fixed by a mould cover with the outside of mould pad, the embedding hole that is used for installing the shower nozzle is seted up to the outside of mould cover, set up one on the inside wall of mould cover and followed the circumference groove that mould cover circumference distributes, the circumference groove with the embedding hole is linked together, set up a plurality of evenly distributed's axial tank on the inside wall of mould cover, each the axial tank with the circumference groove communicates mutually.

Preferably, the axial grooves are linear or wavy.

Preferably, a fixing seat is arranged outside the die sleeve on the periphery of the embedding hole, the spray head penetrates through the fixing seat, a clamping block is arranged on the spray head, and a spring is sleeved outside the spray head between the clamping block and the fixing seat.

Preferably, a sealing ring is fixed on the outer edge of the upper end of the embedding hole, and an inner hole of the sealing ring is in interference fit with the spray head.

Preferably, the embedded hole is matched with the free end of the spray head in shape and is in a taper hole shape.

By adopting the technical scheme, the beneficial effects of the utility model are that: the utility model discloses a set up the structure of mould cover, carry out holistic liquid nitrogen cooling to mould body and die cushion, make the mould can have constantly cooling in the continuous production process, avoid in the production its problem emergence that constantly generates heat and influence product quality, and then can accomplish the continuity production of longer time, improve production efficiency.

Drawings

Fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural view of a mold sleeve according to a first embodiment of the present invention;

fig. 3 is a schematic view of a partial enlarged structure at a position a according to an embodiment of the present invention;

fig. 4 is a schematic structural view of an axial groove on a mold sleeve in the second embodiment of the present invention.

Detailed Description

The following detailed description will be given with reference to specific embodiments, so as to solve the technical problems by applying technical means, and to fully understand and implement the technical effects of the present invention.

Example one

Referring to fig. 1, 2 and 3, a die liquid nitrogen cooling constant temperature extrusion device comprises a frame 1, an extrusion die mechanism 2, a liquid nitrogen cylinder 3 mounted on the frame 1, an output hose 31 and a nozzle 4 located at a free end of the output hose 31, wherein the extrusion die mechanism 2 is arranged on the frame 1, a die body 5 is mounted at an output end of the extrusion die mechanism, a die pad 6 is mounted at one side of the die body 5 opposite to the extrusion die mechanism 2, the die body 5 and the die pad 6 are fixed by a die sleeve 7, an insertion hole 71 for mounting the nozzle is formed at the outside of the die sleeve 7, a circumferential groove 72 circumferentially distributed along the die sleeve 7 is formed on the inner side wall of the die sleeve 7, the circumferential groove 72 is communicated with the insertion hole 71, six axial grooves 73 (only three are shown in the figure) uniformly distributed are formed on the inner side wall of the die sleeve 7, each of the axial grooves 73 communicates with the circumferential groove 72. When the device is used, the liquid nitrogen cylinder 3 is opened, the liquid nitrogen enters the circumferential groove 72 through the output hose 31 and the spray head 4 through the embedding hole 71, and then is conveyed to each axial groove 73 step by the circumferential groove 72, and the purpose of uniformly cooling the whole of the die body 5 and the die pad 6 is achieved.

In this embodiment, the axial slot 73 is linear. Specifically, one end of the axial groove 73 is communicated with the circumferential groove 72, and the other end extends to the end of the die pad 6 far away from one end of the die body 5, so that the cooling area of the axial groove 73 covers both the die body 5 and the die pad 6.

In this embodiment, a fixing seat 8 is disposed outside the mold sleeve 7 located on the periphery of the insertion hole 71, the nozzle 4 is inserted into the fixing seat 8, a fixture block 41 is disposed on the nozzle 4, and a spring 81 is disposed outside the nozzle 4 between the fixture block 41 and the fixing seat 8. When the liquid nitrogen cylinder is started or shut down, the output hose 31 is subjected to a reverse acting force, and the spray head 4 is easy to separate from the embedded hole 71 at the moment, so that the liquid nitrogen leaks out, therefore, the structure of the fixed seat 8, the fixture block 41 and the spring 81 is arranged, the force can be buffered and removed by depending on the elasticity of the spring 81, and the aim of preventing the spray head 4 from separating is further achieved; at the same time, due to the action of the spring 81, the spray head 4 can be restored to the state of being attached to the insertion hole 71 after being stressed.

In this embodiment, a sealing ring 711 is fixed on the outer edge of the upper end of the insertion hole 71, and an inner hole of the sealing ring 711 is in interference fit with the nozzle 4; the provision of the seal ring 711 prevents liquid nitrogen from leaking from the upper end of the insertion hole 71, and also prevents external dust from entering the insertion hole 71 and affecting the production.

In this embodiment, the insertion hole 71 is in a conical hole shape and is matched with the free end of the nozzle 4; the tapered hole shape described here includes a cylindrical shape having a certain size at the upper end and a frustum structure in which the diameter of the circle is gradually reduced, and the cylindrical portion of the shower head 4 can be engaged in the insertion hole.

Example two

Referring to fig. 4, the axial grooves 73 are in a wavy line shape compared to the first embodiment, and in this case, the liquid nitrogen can be influenced by the wavy line shape, and the flow in the mold sleeve 7 can be achieved for a longer time, thereby further improving the cooling effect.

The utility model discloses a set up the structure of mould cover, carry out holistic liquid nitrogen cooling to mould body and die cushion, make the mould can have constantly cooling in the continuous production process, avoid in the production its problem emergence that constantly generates heat and influence product quality, and then can accomplish the continuity production of longer time, improve production efficiency. While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a mould liquid nitrogen cooling constant temperature extrusion device, includes frame, extrusion die mechanism, rack-mounted liquid nitrogen jar, output hose and is located the shower nozzle of output hose free end, extrusion die mechanism locates in the frame, and the mould body is installed to its output, the mould pad, its characterized in that are installed to mould body and the relative one side of extrusion die mechanism: the die comprises a die body and a die pad, wherein the die body and the die pad are fixed through a die sleeve, an embedding hole for mounting a spray head is formed in the outer portion of the die sleeve, a circumferential groove distributed along the circumferential direction of the die sleeve is formed in the inner side wall of the die sleeve, the circumferential groove is communicated with the embedding hole, a plurality of axial grooves distributed uniformly are formed in the inner side wall of the die sleeve, and each axial groove is communicated with the circumferential groove.

2. The die liquid nitrogen-cooled constant-temperature extrusion device according to claim 1, characterized in that: the axial grooves are linear or wavy.

3. The die liquid nitrogen-cooled constant-temperature extrusion device according to claim 2, characterized in that: the die sleeve positioned on the periphery of the embedding hole is externally provided with a fixed seat, the spray head penetrates through the fixed seat, a clamping block is arranged on the spray head, and a spring is sleeved outside the spray head between the clamping block and the fixed seat.

4. The die liquid nitrogen-cooled constant-temperature extrusion device according to claim 1, 2 or 3, characterized in that: and a sealing ring is fixed on the outer edge of the upper end of the embedding hole, and an inner hole of the sealing ring is in interference fit with the spray head.

5. The die liquid nitrogen-cooled constant-temperature extrusion device according to claim 1, 2 or 3, characterized in that: the embedded hole is matched with the free end of the spray head in shape and is in a taper hole shape.