CN219093162U

CN219093162U - Wear-resisting single crystal pulling die

Info

Publication number: CN219093162U
Application number: CN202223503763.7U
Authority: CN
Inventors: 朱宏治
Original assignee: Jiangsu Honghu Precision Mould Co ltd
Current assignee: Jiangsu Honghu Precision Mould Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-30
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses a wear-resistant single crystal pulling die which comprises a supporting sleeve, a die core and a pressing piece, wherein the supporting sleeve is of a cylindrical structure, a main through hole communicated with the inner wall is formed in the side surface of the supporting sleeve, and the main through hole is communicated with a high-pressure air source through a pipeline; the mold core is internally provided with a wire drawing channel along the axis; the compacting piece is fixed the mold core in the support sleeve, the outer wall of the compacting piece is provided with an annular channel, the position of the annular channel is matched with the position of the main through hole, the center of the compacting piece is provided with a horn-shaped feed inlet, and a plurality of auxiliary through holes are formed between the feed inlet and the annular channel. Through offer a plurality of auxiliary through-holes with main through-hole intercommunication in feed inlet department to with main through-hole and high pressure air supply intercommunication, thereby can blow the wire rod before the feeding and wipe, avoid dust, piece to enter into between mould and the wire rod on the wire rod, thereby reduced the wearing and tearing to the mould, improved production efficiency and product quality, prolonged the life of mould.

Description

Wear-resisting single crystal pulling die

Technical Field

The utility model relates to the technical field of single crystal grinding tools, in particular to a wear-resistant single crystal drawing die.

Background

The wire drawing die means a tool which forces metal to pass through the die under the action of external force, so that the cross-sectional area of the metal is compressed, and the required cross-sectional area shape and size are obtained. Compared to polycrystalline diamond, single crystal diamond is commonly used for hard metal wires of finer diameter because it does not contain irregular grain boundaries, has no brittle fracture surface, and is isotropic.

However, in the process of implementing the technical solution of the embodiment of the present application, the present inventors have found that at least the following problems exist in the above-mentioned technology:

the existing monocrystal grinding tool has the defects that when wire drawing is carried out, scraps Yi Ka attached to wires are scratched on the surfaces of the wires and even cause wire breakage or abrasion and collapse of the dies, so that the production efficiency is seriously influenced; in addition, if the wire rod deflects or moves in the wire drawing process, uneven stress and pressure are also easy to cause, and the quality of the product and the abrasion of the die are influenced.

Disclosure of Invention

The utility model aims to provide a wear-resistant single crystal pulling die for solving the technical problems in the background art, and the utility model is realized by the following technical scheme:

the wear-resistant single crystal drawing die comprises a supporting sleeve, a die core and a pressing piece, wherein the supporting sleeve is of a cylindrical structure, a main through hole communicated with the inner wall is formed in the side surface of the supporting sleeve, and the main through hole is communicated with a high-pressure air source through a pipeline; the mold core is internally provided with a wire drawing channel along the axis; the compacting piece is fixed the mold core in the support sleeve, the outer wall of the compacting piece is provided with an annular channel, the position of the annular channel is matched with the position of the main through hole, the center of the compacting piece is provided with a horn-shaped feed inlet, and a plurality of auxiliary through holes are formed between the feed inlet and the annular channel.

Further, the auxiliary through holes are arranged perpendicular to the surface of the feed inlet.

Further, one end of the supporting sleeve is fixed with a connecting flange, the inner side of one end of the supporting sleeve, which is far away from the connecting flange, is fixed with a supporting ring, and the mold core is fixed between the supporting ring and the compressing piece.

Further, the mold core comprises a connecting sleeve and a lining, wherein the lining is made of single crystal diamond, and the lining is fixed in the connecting sleeve through a sintering material.

Further, the outside of compressing tightly is provided with the external screw thread, and the support cover is close to flange one end and is provided with the internal screw thread, and the internal screw thread cooperates with the external screw thread.

Further, a handle is fixed on one side of the pressing piece, a guide ring is fixed on the handle, and the guide ring and the wire drawing channel are coaxially arranged.

The technical scheme provided by the embodiment of the application has at least the following technical effects or advantages:

1. the auxiliary through holes communicated with the main through holes are formed in the feeding hole, and the main through holes are communicated with the high-pressure air source, so that wires before feeding can be blown away, dust and scraps on the wires are prevented from entering between the die and the wires, abrasion to the die is reduced, and production efficiency and product quality are improved;

2. through installing the guide ring at the feed inlet front end to can reduce the radial skew of wire rod, reduce the radial impact of wire rod to the mould, prolonged the life of mould.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a cross-sectional view of an embodiment of the present application;

FIG. 3 is a schematic view of a support sleeve according to an embodiment of the present application;

FIG. 4 is a schematic view of a mold core structure according to an embodiment of the present disclosure;

FIG. 5 is a cross-sectional view of a mold core according to an embodiment of the present application;

fig. 6 is a schematic structural view of a pressing member according to an embodiment of the present application.

The symbols in the drawings are: 1. a support sleeve; 11. a connecting flange; 12. a support ring; 13. a main through hole; 14. an internal thread; 2. a mold core; 21. connecting sleeves; 211. a step; 22. a lining; 221. a constriction section; 222. shaping section; 223. a pressure reducing section; 224. a discharging section; 3. a pressing member; 31. a feed inlet; 32. an annular channel; 33. an auxiliary through hole; 34. an external thread; 4. a handle; 41. a guide ring.

Detailed Description

In order that the manner in which the above recited features of the present utility model can be better understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The wear-resistant single crystal pulling die comprises a supporting sleeve 1, a die core 2, a pressing piece 3 and a handle 4, wherein the die core 2 is fixed in the supporting sleeve 1 through the pressing piece 3, and the handle 4 is fixed on the upper side of the pressing piece 3.

As shown in fig. 2 and 3, the support sleeve 1 is of a cylindrical structure made of tungsten steel, a connecting flange 11 is fixed at the upper end of the support sleeve 1, a support ring 12 is fixed at the inner side of the lower end of the support sleeve 1, and the connecting flange 11, the support ring 12 and the support sleeve 1 are integrally formed. The side wall of the support sleeve 1 is provided with a main through hole 13 communicated with the inner wall, and the main through hole 13 is communicated with a high-pressure air source through a pipeline and is used for blowing air into the support sleeve 1. The inner side of the upper end of the supporting sleeve 1 is also provided with an internal thread 14.

As shown in fig. 2, 4 and 5, the mold core 2 comprises a connecting sleeve 21 and a lining 22, the connecting sleeve 21 is of a cylinder structure made of tungsten steel, a concave step 211 is arranged at the bottom of the connecting sleeve 21, and the step 211 is matched with the support ring 12 of the support table 1, so that the mold core 2 is supported and the radial position of the mold core 2 is limited. The inner lining 22 is made of monocrystalline diamond, and the inner lining 22 is coaxially fixed in the connecting sleeve 21 through a sintering material. The die core 2 is internally provided with a wire drawing channel along the axis, the wire drawing channel is sequentially divided into a shrinkage section 221, a shaping section 222, a decompression section 223 and a discharging section 224 from top to bottom, the shaping section 222 is a cylindrical channel, and the shrinkage section 221 and the decompression section 223 are trumpet-shaped channels communicated with the shaping section 222. Preferably, the contraction section 221 and the forming section 222 are both positioned in the liner 22, and the decompression section 223 and the discharge section 224 are positioned in the connecting sleeve 21. During processing of the mold core 2, firstly, cut single crystal diamond is sintered and fixed in the connecting sleeve 21, then, the axis of the mold core 2 is perforated by laser, and the mold core is polished to obtain the diamond.

As shown in fig. 2 and 6, the compressing element 3 has an annular structure, the inner side of the compressing element 3 is a trumpet-shaped feed port 31, and the lower end of the feed port 31 is matched with the upper end of the shrinkage section 221 of the mold core 2. An annular channel 32 is formed in the lower end of the outer wall of the pressing piece 3, the position of the annular channel 32 is matched with the position of the main through hole 13 on the supporting sleeve 1, a plurality of auxiliary through holes 33 are formed between the feeding hole 31 and the annular channel 32, and the auxiliary through holes 33 are perpendicular to the surface of the feeding hole 31. The high-pressure gas enters the annular channel 32 from the main through hole 13, and is sprayed to the surface of the wire rod by the auxiliary through hole 33 in an outward inclined mode, so that dust and scraps on the surface of the wire rod are blown off. In addition, the atomized liquid lubricant can be sprayed on the surface of the wire rod through the auxiliary through holes 33, so that lubrication of the wire rod is ensured, and friction between the wire rod and the die is reduced.

The upper portion outside the compacting piece 3 is provided with an external thread 34, the internal thread 14 in the external thread 34 and the supporting sleeve 1 are matched, and the supporting sleeve 3 is in threaded connection with the supporting sleeve 1, so that the mold core 2 is compacted in the supporting sleeve 1. Preferably, a handle 4 is welded and fixed at the upper end of the pressing member 3, and a guide ring 41 coaxial with the wire drawing channel is fixed on the handle 4. The handle 4 can be arranged to conveniently detach or mount the pressing piece 3, limit the wire rod, reduce radial movement of the wire rod, and reduce radial impact of the wire rod on the die.

The technical scheme in the embodiment of the application at least has the following technical effects or advantages:

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The wear-resistant single crystal pulling die comprises a supporting sleeve, a die core and a pressing piece, and is characterized in that the supporting sleeve is of a cylindrical structure, a main through hole communicated with the inner wall is formed in the side surface of the supporting sleeve, and the main through hole is communicated with a high-pressure air source through a pipeline; a wire drawing channel is arranged in the mold core along the axis; the die core is fixed in the support sleeve by the pressing piece, an annular channel is formed in the outer wall of the pressing piece, the position of the annular channel is matched with the position of the main through hole, a horn-shaped feed inlet is formed in the center of the pressing piece, and a plurality of auxiliary through holes are formed between the feed inlet and the annular channel.

2. The wear resistant single crystal pulling die as defined in claim 1, wherein said auxiliary through holes are disposed perpendicular to the surface of said feed port.

3. The wear-resistant single crystal pulling die as set forth in claim 1, wherein a connecting flange is fixed to one end of the support sleeve, a support ring is fixed to an inner side of the support sleeve remote from the one end of the connecting flange, and the die core is fixed between the support ring and the pressing member.

4. The wear resistant single crystal pulling die as defined in claim 1, wherein the die core comprises a connecting sleeve and a liner, the liner being of single crystal diamond material, the liner being secured within the connecting sleeve by a sintered material.

5. The wear-resistant single crystal pulling die as claimed in claim 1, wherein the outer side of the pressing member is provided with an external thread, the end of the supporting sleeve, which is close to the connecting flange, is provided with an internal thread, and the internal thread is matched with the external thread.

6. The wear-resistant single crystal pulling die as set forth in claim 1, wherein a handle is fixed to one side of the pressing member, and a guide ring is fixed to the handle, the guide ring being disposed coaxially with the wire drawing passage.