CN209987355U

CN209987355U - Extrusion die and extrusion equipment

Info

Publication number: CN209987355U
Application number: CN201920722098.XU
Authority: CN
Inventors: 桂红; 潘潇
Original assignee: Dongguan Dikai Medical Technology Co Ltd
Current assignee: Dongguan Dikai Medical Technology Co Ltd; DONGGUAN DIKAI MEDICAL CO Ltd
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-01-24
Anticipated expiration: 2029-05-20

Abstract

The utility model relates to the technical field of mold, a extrusion tooling and extrusion equipment is disclosed. The extrusion die is provided with the shunt positioning die sleeve, the core die is inserted into the core die positioning hole of the shunt positioning die sleeve, the neck die is inserted into the neck die positioning hole, the position of the neck die and the core die is fixed by the shunt positioning die sleeve, and an extrusion space formed between the neck die and the core die is used for injecting an extruding agent to form a pipe wall. Compare with traditional extrusion tooling assembly structure, the utility model discloses an extrusion tooling has cancelled and has carried out the mode that the bolt was fixed with mandrel and bush respectively, and whole process has realized the rapid Assembly location to mandrel and bush through reposition of redundant personnel location die sleeve, need not again the manual position of adjusting bush and mandrel respectively, has simplified installation and adjustment step, has reduced the operation complexity. The utility model provides an extrusion equipment is equipped with above-mentioned extrusion tooling for extrusion tooling's installation is simpler with the adjustment, has reduced the operation complexity.

Description

Extrusion die and extrusion equipment

Technical Field

The utility model relates to the technical field of mold, especially, relate to an extrusion tooling and extrusion equipment.

Background

The high-pressure contrast injection extension tube is mainly used for lengthening pipelines, medicine infusion, rapid infusion and the like in interventional operations and structurally comprises an inner layer, a net-woven layer and an outer layer, and is usually produced by adopting a mouth core mould group.

Fig. 1 shows a design structure of a conventional mouth core mold, and as shown in fig. 1, the mouth core mold includes a core mold 200 and a mouth mold 100 which are arranged at an interval along an axial direction, an extrusion space is formed between the core mold 200 and the mouth mold 100, and when an operator mounts the core mold 200 and the mouth mold 100 on a head of an extrusion device, the core mold 200 and the mouth mold 100 need to be sequentially fixed on the head of the extrusion device so as to be coaxial with each other, and finally, after an extrusion agent in the extrusion device is filled into the extrusion space, a high-pressure contrast extension tube is molded. Since the core mold 200 and the mouthpiece 100 need to be mounted to the head by fastening bolts, respectively, the operation is complicated and troublesome. In addition, the relative positions of the core mold 200 and the mouthpiece 100 must be manually adjusted during the installation process so that the core mold 200 and the mouthpiece 100 are coaxial, resulting in a long time for adjusting the installation positions of the core mold 200 and the mouthpiece 100, which makes the installation adjustment of the apparatus inefficient.

In view of the above, there is a need for an extrusion die that simplifies the installation and adjustment steps and reduces the complexity of operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an extrusion tooling can simplify installation and adjustment step, reduces the operation complexity.

An object of the utility model is also to provide an extrusion equipment, it possesses the extrusion tooling that can simplify installation and adjustment step, reduces the operation complexity.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a pair of extrusion tooling, including mandrel and bush, it still includes:

the split-flow positioning sleeve is provided with a core mold positioning hole and a mouth mold positioning hole which are communicated, the core mold is inserted into the core mold positioning hole, the mouth mold is inserted into the mouth mold positioning hole, at least part of the core mold extends into the containing hole of the mouth mold and is coaxial with the mouth mold, and the core mold and the mouth mold are arranged at intervals along the circumferential direction to form an extrusion space.

Optionally, the extrusion die further comprises:

and the limiting assembly is detachably connected with the shunting positioning sleeve and is configured to limit the neck mold to be separated from the shunting positioning sleeve.

Optionally, the die comprises an insertion section inserted into the die positioning hole, the limiting assembly comprises a limiting portion arranged along the flowing direction of the extruding agent with the shunting positioning sleeve, and the limiting portion is abutted to one end, away from the core die positioning hole, of the insertion section.

Optionally, the limiting assembly comprises:

and the connecting part is connected with one end of the neck mold in a plugging way through threads.

Optionally, the core mold positioning hole is a taper hole, the aperture of the taper hole gradually increases along the flowing direction of the extruding agent, the core mold comprises a core mold positioning section matched with the shape of the core mold positioning hole, and the core mold positioning section is inserted into the core mold positioning hole.

Optionally, a feeding hole is further formed in the side wall of the shunting positioning sleeve, and an extruding agent can enter the extruding space through the feeding hole.

Optionally, the number of the feeding holes is multiple, and the feeding holes are uniformly distributed at intervals in the circumferential direction of the flow dividing positioning sleeve.

Optionally, the core mold is provided with a push rod hole extending along a length direction thereof, and the push rod hole is configured to accommodate a push rod.

The utility model also provides an extrusion equipment, it includes as above extrusion tooling.

Optionally, the extrusion apparatus further comprises a machine head, and one end of the diversion positioning sleeve, which is far away from the die, is connected with the machine head through a thread.

The beneficial effects of the utility model reside in that:

the utility model discloses an extrusion tooling is through setting up reposition of redundant personnel location die sleeve, pegs graft the mandrel in the mandrel locating hole of reposition of redundant personnel location die sleeve to peg graft the bush in the bush locating hole, realized reposition of redundant personnel location die sleeve to the rigidity of bush and mandrel, and the space of extruding that forms between bush and the mandrel is used for pouring into the extrusion agent in order to form the pipe wall. Compare with traditional extrusion tooling assembly structure, the utility model discloses an extrusion tooling has cancelled and has carried out the mode that the bolt was fixed with mandrel and bush respectively, and whole process has realized the rapid Assembly location to mandrel and bush through reposition of redundant personnel location die sleeve, need not again the manual position of adjusting bush and mandrel respectively, has simplified installation and adjustment step, reduces the operation complexity. The utility model provides an extrusion equipment is equipped with above-mentioned extrusion tooling for extrusion tooling's installation is simpler with the adjustment, reduces the operation complexity.

Drawings

FIG. 1 is a cross-sectional view of a prior art extrusion die;

fig. 2 is a schematic structural diagram of an extrusion die provided by the present invention;

fig. 3 is a cross-sectional view of the extrusion die (with the limiter removed) provided by the present invention;

fig. 4 is a sectional view of the extrusion die (installation limiting member) of the present invention.

In the figure:

100-die; 200-core mold;

1-shunting positioning sleeve; 2-core mold; 3-opening the die; 4-a limiting component;

11-core mold positioning holes; 12-die positioning hole; 13-a feeding hole; 14-a first external thread; 15-a second external thread; 21-core mold positioning section; 22-core mold forming section; 23-core mold compression section; 24-a push rod hole; 31-a plug section; 32-die forming section; 33-clamping table; 41-a limiting part; 42-a connecting portion;

311-compression holes; 321-forming holes.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The extrusion tooling that this embodiment provided is mainly used for the production of extruding of pipe class product, for example the extrusion moulding of medical pipe fittings such as high-pressure radiography extension pipe, also can be used to the extrusion moulding of other classification's pipe fittings, and the bush 3 and the mandrel 2 cartridge of the extrusion tooling of this implementation install again on extrusion equipment after shunting position sleeve 1, and extrusion tooling convenient to use is simple.

As shown in fig. 2 and 3, the extrusion die includes a core die 2, a die 3, and a split positioning sleeve 1. The shunting positioning sleeve 1 is provided with a core mold positioning hole 11 and a mouth mold positioning hole 12 which are communicated. The core mold 2 is inserted into the core mold positioning hole 11, so that the position of the core mold 2 is fixed by the shunt positioning sleeve 1. The neck ring mold 3 is inserted into the neck ring mold positioning hole 12, and the position of the neck ring mold 3 is fixed by the shunting positioning sleeve 1. At least part of the core mould 2 extends into the accommodating hole of the mouth mould 3, the core mould 2 and the mouth mould 3 are arranged at intervals along the circumferential direction to form an extrusion space, an extruding agent is injected into the extrusion space to form an extruded pipe fitting, and further, the core mould 2 and the mouth mould 3 are coaxial, so that the wall thickness of the pipe wall of the extruded pipe fitting can be the same everywhere, and the pipe wall is uniform.

In actual production, an extrusion device (not shown in the figure) is provided with a component for fixedly mounting the extrusion die of the embodiment, and an operator sequentially inserts the core die 2 and the neck die 3 onto the shunting positioning sleeve 1 and then mounts and fixes the extrusion die of the embodiment on a machine head of the extrusion device, so that the core die 2 and the neck die 3 are rapidly mounted. The utility model discloses an extrusion tooling has cancelled and has carried out the mode on the bolt fastening extrusion equipment's the aircraft nose with mandrel and bush respectively in traditional extrusion tooling, and the whole installation of this embodiment is direct to have realized the rapid Assembly location to mandrel 2 and bush 3 through reposition of redundant personnel location die sleeve 1, need not again manual position of adjusting bush 2 and mandrel 3 respectively, has simplified installation and adjustment step, reduces the operation complexity.

In order to realize that the position of the core mold 2 is limited by the shunting positioning sleeve 1 after the core mold 2 is inserted into the core mold positioning hole 11, the phenomenon that the position of the core mold 2 deviates along the axis direction in the extrusion process to influence the extrusion effect is avoided. As shown in fig. 3 and 4, the core mold positioning hole 11 is a tapered hole whose diameter gradually increases in the flow direction of the extrusion agent, the core mold 2 includes a core mold positioning section 21 having a shape matching the core mold positioning hole 11, and the core mold positioning section 21 is inserted into the core mold positioning hole 11. Because the aperture of the taper hole is gradually increased along the flowing direction of the extruding agent, after the core mold positioning section 21 is inserted into the core mold positioning hole 11, the outer peripheral wall of the core mold positioning section 21 completely abuts against the inner peripheral wall of the core mold positioning hole 11, so that the core mold positioning section 21 can not move further relative to the core mold positioning hole 11, and the fixing of the shunt positioning sleeve 1 to the relative position of the core mold 2 along the axial direction is realized.

Further, in order to form an extrusion space between the core mold 2 and the die 3. As shown in fig. 3, the core mold 2 further includes a core mold molding section 22 and a core mold compression section 23. The core mold compression section 23 is provided between the core mold positioning section 21 and the core mold molding section 22, and the three are integrally molded to form the core mold 2. The core mold compression section 23 is a frustum body, the core mold molding section 22 is cylindrical, the lower bottom surface of the core mold compression section 23 is connected with the core mold positioning section 21, and the upper bottom surface of the core mold compression section 23 is connected with the core mold molding section 22. The mouth mold 3 designed to match the shape of the core mold 2 is further provided with a compression hole 311, and the compression hole 311 is communicated with the molding hole 321 to form an accommodating hole together. The core mold molding section 22 is located in the molding hole 321, and the core mold compression section 23 is located in the compression hole 311, thereby forming an extrusion space between the core mold 2 and the die 3.

The purpose of the design of the core mold compression section 23 as a frustum body is that during the extrusion process, when the extrusion agent flows through the core mold compression section 23, the outer peripheral surface of the core mold compression section 23 has an inclination angle, which can promote the extrusion agent to rapidly flow into the core mold forming section 22, and at the same time, after the extrusion agent flows through the core mold compression section 23 under the action of the extrusion pressure, the action force of the extrusion agent on the core mold compression section 23 can further promote the core mold compression section 23 to be stably inserted into the core mold positioning hole 11, so that the insertion and the fixation are stable.

Further, in order to inject the extruding agent into the extruding space, as shown in fig. 3, a feeding hole 13 is further formed in the side wall of the shunting positioning sleeve 1, and the extruding agent can enter the extruding space through the feeding hole 13.

In order to promote the extrusion agent to flow into the extrusion space quickly and uniformly, the material and the performance of the pipe wall of the extruded pipe along the axial direction can be more uniform. As shown in fig. 3, the number of the feeding holes 13 is 16, and in other embodiments, the number of the feeding holes may be 20, 22 or more. A plurality of pan feeding holes 13 evenly spaced apart in the circumference of reposition of redundant personnel position sleeve 1 for the extrusion agent can flow into in step and extrude each position of space along circumference fast, has guaranteed that the pipe wall of extrusion forming's pipe fitting is whole along ascending performance and the material of circumference more even.

After the pipe wall in the extrusion space is extruded and formed, the formed pipe wall can be pushed out from the die, and then the next extrusion work can be carried out. As shown in fig. 3, the core mold 2 is provided with a push rod hole 24 extending along the length direction thereof, the push rod hole 24 can accommodate a push rod, and after the pipe is extruded and formed, the pipe can be pushed out by pushing the push rod along the flowing direction of the extruding agent, so as to perform the next extrusion operation.

Furthermore, the stability of the extrusion die in the working process is improved in order to avoid the die 3 from being separated from the die positioning hole 12 due to overlarge extrusion pressure in the extrusion process. Fig. 4 is a cross-sectional view of the extrusion die mounting limiting part of this embodiment, and as shown in fig. 4, the extrusion die of this embodiment further includes a limiting component 4 arranged along the flow direction of the extruding agent with the shunting positioning sleeve 1, the limiting component 4 is detachably connected with the shunting positioning sleeve 1, the limiting component 4 can limit the die 3 to be separated from the shunting positioning sleeve 1, and further, the die 3 is prevented from being separated from the die positioning hole 12.

Specifically, as shown in fig. 3 and 4, the die 3 includes an insertion section 31 inserted into the die positioning hole 12 and a die forming section 32 coaxially connected to the insertion section 31. Wherein, the external diameter of die profiled section 32 is less than the external diameter of grafting section 31, and both are cylindricly, and the junction of die profiled section 32 and grafting section 31 forms the ka tai 33 that is used for butt spacing subassembly 4. The limiting component 4 is provided with a limiting part 41, the limiting part 41 abuts against one end of the insertion section 31 departing from the core mold positioning hole 11, namely the limiting part 41 abuts against the clamping table 33, and further the position of the neck mold 3 is limited along the flowing direction of the extruding agent.

Further, in order to be able to detachably connect the stop assembly 4 to the shunt positioning sleeve 1. As shown in fig. 3 and 4, the position-limiting component 4 further includes a connecting portion 42, and the connecting portion 42 and the position-limiting portion 41 are integrally formed to form the position-limiting component 4. Wherein, connecting portion 42 is used for passing through threaded connection with the one end of reposition of redundant personnel position sleeve 1 grafting bush 3, realizes being connected to reposition of redundant personnel position sleeve 1 with spacing subassembly 4 detachable on. Specifically, spacing subassembly 4 is whole to be the ring flange form, connecting portion 42 of spacing subassembly 4 is equipped with and has the internal screw thread screw (not sign in the picture), be equipped with first external screw thread 14 on the periphery wall of the one end of reposition of redundant personnel position sleeve 1 grafting bush 3, the screw and the 14 threaded connection of first external screw thread of connecting portion 42, spacing portion 41 of spacing subassembly 4 sets up in one of connecting portion 42, and the lateral wall of spacing portion 41 offsets with ka tai 33 and lean on, realize that spacing subassembly 4 connects the back on reposition of redundant personnel position sleeve 1, it is prescribed a limit to the position of the mould 3 along the extrusion agent flow direction.

In order to install the extrusion die of this embodiment on the head of the extrusion device, as shown in fig. 3 and 4, the outer periphery of the end of the shunting positioning sleeve 1, which is not inserted into the die 3, is provided with a second external thread 15, the head is provided with a connection port (not shown in the figure) adapted to the second external thread 15, and the shunting positioning sleeve 1 is in threaded connection with the connection port of the head through the second external thread 15, so that the extrusion die is integrally and fixedly installed on the head of the extrusion device.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. An extrusion die comprising a core die (2) and a die (3), characterized by further comprising:

reposition of redundant personnel position sleeve (1), set up core mould locating hole (11) and bush locating hole (12) that are linked together on it, core mould (2) peg graft in core mould locating hole (11), bush (3) peg graft in bush locating hole (12), at least part core mould (2) stretch into in the accommodation hole of bush (3), and with bush (3) are coaxial mutually, core mould (2) with bush (3) set up along the circumference direction interval and form the extrusion space.

2. The extrusion die of claim 1, further comprising:

the limiting assembly (4) is detachably connected with the shunting positioning sleeve (1) and is configured to limit the neck ring mold (3) to be separated from the shunting positioning sleeve (1).

3. The extrusion die of claim 2, wherein the die (3) comprises an insertion section (31) inserted into the die positioning hole (12), and the limiting component (4) comprises a limiting portion (41) arranged along the flow direction of the extruding agent with the shunt positioning sleeve (1), wherein the limiting portion (41) abuts against one end of the insertion section (31) departing from the core die positioning hole (11).

4. Extrusion die according to claim 2, characterised in that the stop assembly (4) comprises:

and the connecting part (42) is connected with one end of the flow dividing positioning sleeve (1) inserted into the mouth mold (3) through threads.

5. The extrusion die according to any one of claims 1 to 4, wherein the core die positioning hole (11) is a tapered hole whose aperture gradually increases in the flow direction of the extrusion agent, and the core die (2) includes a core die positioning section (21) having a shape matching the core die positioning hole (11), the core die positioning section (21) being inserted into the core die positioning hole (11).

6. The extrusion die of any one of claims 1 to 4, wherein a feeding hole (13) is further formed in the side wall of the shunting positioning sleeve (1), and an extruding agent can enter the extrusion space through the feeding hole (13).

7. The extrusion die of claim 6, wherein the number of the feeding holes (13) is multiple, and the multiple feeding holes (13) are uniformly distributed at intervals in the circumferential direction of the shunting positioning sleeve (1).

8. The extrusion die according to any one of claims 1 to 4, wherein the core die (2) is provided with a push rod hole (24) extending along a length direction thereof, and the push rod hole (24) is configured to receive a push rod.

9. An extrusion apparatus comprising an extrusion die as claimed in any one of claims 1 to 8.

10. The extrusion apparatus according to claim 9, further comprising a head, wherein the end of the split positioning sleeve (1) remote from the die (3) is in threaded connection with the head.