CN216176328U

CN216176328U - Die gasket reverse-jacking structure

Info

Publication number: CN216176328U
Application number: CN202122433664.5U
Authority: CN
Inventors: 王佩
Original assignee: Yixing Rongjie Precision Mould Co ltd
Current assignee: Yixing Rongjie Precision Mould Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-04-05
Anticipated expiration: 2031-10-08

Abstract

The utility model discloses a stamping die gasket reverse-ejection structure, which relates to the field of cold heading dies and comprises a stamping die and a lower die positioned on the right side of a main die, wherein the lower die comprises an inner lower die and a lower die shell wrapped outside the inner lower die, the inner lower die is in interference fit with the lower die shell, the center of the inner lower die is provided with a transverse through hole penetrating from left to right, a through rod is slidably inserted in the through hole and can be fixed in the inner lower die, the right side of the inner lower die is provided with an integrally formed flange, and the flange shell is abutted against the right end of the lower die shell; a groove is formed in the center of the right side of the stamping die, a stamping pin protruding rightwards is fixedly arranged in the groove, a stamping die cushion block is fixedly arranged on the left side of the stamping die, a plurality of reverse ejector pins are transversely arranged on the right side of the stamping die cushion block, the right end of each reverse ejector pin is a contact block, and the right end of each contact block is a smooth vertical plane. When the product is reversely jacked after being molded, the contact block is arranged on the right side of the reverse thimble and is in contact with the surface of the product, so that the product is protected from being damaged easily.

Description

Die gasket reverse-jacking structure

Technical Field

The utility model relates to the field of cold heading dies, in particular to a stamping die gasket reverse-jacking structure.

Background

Cold heading is an extrusion process for metal forming, and metal materials are deformed through the movement of a die and a machine at normal temperature. It has the advantages of high speed, no waste material (no cutting or less cutting), high product strength, etc.

However, the product is not easily demolded after the cold heading die is completed, and thus a reverse ejection is often used to eject the product. In the prior art, the contact part of the product and the upper die is point contact or has small contact area, and the size and the quality of the product are easily influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above technical problems, the present invention aims to provide a die pad reverse ejection structure, which has an advantage of protecting a product from being damaged easily during reverse ejection, and the technical purpose is achieved by the following technical solutions:

a stamping die gasket reverse-ejection structure comprises a stamping die and a lower die positioned on the right side of the stamping die, wherein the lower die comprises an inner lower die and a lower die shell wrapping the outer part of the inner lower die, the inner lower die is in interference fit with a lower die shell, a transverse through hole penetrating from left to right is formed in the center of the inner lower die, a through rod is inserted in the through hole in a sliding mode and can be fixed in the inner lower die, an integrally formed flange is arranged on the right side of the inner lower die, and the flange shell abuts against the right end of the lower die shell;

the stamping die is characterized in that a groove is formed in the center of the right side of the stamping die, a stamping needle protruding rightwards is fixedly arranged in the groove, the stamping needle can be inserted into a cavity in the left side of the lower die, a stamping die cushion block is fixedly arranged on the left side of the stamping die, a plurality of reverse thimbles are transversely arranged on the right side of the stamping die cushion block, the right end of each reverse thimble is a contact block, and the right end of each contact block is a smooth vertical plane.

Further: each reverse thimble's left end is equipped with the boss, the diameter of boss is greater than the diameter of reverse thimble.

Preferably: the reinforcing block is made of elastic materials.

Further: the outside an organic whole of logical stick is encircleed and is provided with limit flange, be equipped with vertical stopper in the lower die shell, but limit flange butt in stopper.

Further: lead to the stick including the outer stick and the interior stick that leads to of integrative setting, lead to the stick outward and be located the excellent right side of leading to in, and the diameter that leads to the stick outward is greater than the diameter that leads to the stick in.

Compared with the prior art, the utility model has the beneficial effects that:

1. when a product is reversely jacked after being molded, the contact block is arranged on the right side of the reverse thimble and is in contact with the surface of the product, so that the product is protected from being damaged easily, and the reinforcing block on the left side of the reverse thimble is made of an elastic material and has a certain buffering effect;

2. the reinforcing block plays a role of protecting the reverse thimble, so that the left side of the reinforcing block is in surface contact with the die cushion block;

3. the through rod is arranged into a two-section type, the part of the through rod is thick, the through rod is guaranteed to be always stable when moving, and the stress is more uniform when the part of the through rod applies force.

Drawings

Fig. 1 is a schematic structural view of the present invention.

In the figure, 1, a die; 11. punching a needle; 12. a reverse thimble; 120. a contact block; 121. a reinforcing block; 13. punching a cushion block; 2. a lower die; 21. an inner lower die; 211. a flange; 22. a lower mould shell; 23. a limiting block; 3. d, passing through the rod; 31. an external through rod; 32. an inner through rod; 4. and a limiting flange.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element 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 for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, a die pad reverse-ejection structure includes a die 1 and a lower die 2 located on the right side of the die 1, where the lower die 2 includes an inner lower die 21 and a lower die shell 22 wrapped outside the inner lower die 21, the inner lower die 21 and the lower die shell 22 are in interference fit, a transverse through hole penetrating from left to right is formed in the center of the inner lower die 21, a through rod 3 is slidably inserted into the through hole, the through rod 3 can be fixed in the inner lower die 21 in an unlimited manner, for example, in a manner of abutting against the side surface thereof with a screw, pin connection outside the lower die 2, bolt distance adjustment, and the like, an integrally formed flange 211 is arranged on the right side of the inner lower die 21, and the flange 211 shell abuts against the right end of the lower die shell 22, so that the inner lower die 21 cannot slide to the left under the force in the lower die shell 22.

The center of the right side of the punch die 1 is provided with a groove, the groove is internally fixedly provided with a punch pin 11 protruding rightwards, the left side of the punch die 1 is fixedly provided with a punch die cushion block 13, the right side of the punch die cushion block 13 is transversely provided with a plurality of reverse ejector pins 12, the reverse ejector pins 12 are uniformly distributed around the outer side of the punch pin 11 and used for being abutted against the left side of a product, the right end of each reverse ejector pin 12 is a contact block 120, and the right end of the contact block 120 is a smooth vertical plane. The contact block 120 is in contact with the surface of the product, and the reverse ejector pin 12 is not easy to influence the size of the product and damage the product when the product is ejected reversely. The left end of each reverse thimble 12 is provided with a reinforcing block 121, the diameter of the reinforcing block 121 is larger than that of the reverse thimble 12 so as to protect the reverse thimble 12 and enable the reverse thimble 12 to be stably stressed, meanwhile, the reinforcing block 121 is preferably made of elastic materials such as rubber, and when the reverse thimble is pushed, the reverse thimble applies pressure to the die cushion block 13, and the product forming quality is further protected due to the buffering effect of the reinforcing block 121.

Lead to excellent 3 outside an organic whole and encircle and be provided with spacing flange 4, be equipped with vertical stopper 23 in the lower mould shell 22, but spacing flange 4 butt in stopper 23 for the right side stroke of restricting leading to excellent 3 limits product shaping length.

Lead to stick 3 including the outer stick 31 and the interior stick 32 that leads to of integrative setting, lead to stick 31 outward and be located the interior stick 32 right side that leads to, and the diameter that leads to stick 31 outward is greater than the diameter that leads to stick 32 in, and it is more stable when the anti-top of its atress that leads to stick 32 outward, drives and leads to the stick 31 motion in difficult skew.

The principle of the utility model is as follows: firstly, according to the length requirement of product forming, the through rod 3 is adjusted to a proper position to be fixed, the die 1 extrudes a product to be formed, the fixing device of the through rod 3 is loosened after forming, the through rod 3 is pressed leftwards to eject the product leftwards for demoulding, and the contact block 120 can play a role in buffering when the product is ejected out, so that the product forming quality is ensured, and the product is smoothly demoulded.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a structure is turned over to die cushion piece, includes die (1) and lower mould (2) that are located die (1) right side, its characterized in that: the lower die (2) comprises an inner lower die (21) and a lower die shell (22) wrapped outside the inner lower die (21), the inner lower die (21) is in interference fit with the lower die shell (22), a transverse through hole penetrating from left to right is formed in the center of the inner lower die (21), a through rod (3) is inserted into the through hole in a sliding mode, the through rod (3) can be fixed in the inner lower die (21), an integrally formed flange (211) is arranged on the right side of the inner lower die (21), and a shell of the flange (211) abuts against the right end of the lower die shell (22);

the utility model discloses a stamping die, including stamping die (1), die cushion (13) right side transversely sets up many reverse thimbles (12), and reverse thimble (12) right-hand member is contact piece (120), contact piece (120) right-hand member is smooth vertical plane, and recess internal fixation sets up convex towards needle (11) to the right side, towards needle (11) can insert in the left cavity of lower mould (2), fixed die cushion (13) that sets up in stamping die (1) left side, die cushion (13).

2. The die pad reverse ejection structure of claim 1, wherein: the left end of each reverse thimble (12) is provided with a reinforcing block (121), and the diameter of each reinforcing block (121) is larger than that of each reverse thimble (12).

3. The die pad reverse ejection structure of claim 2, wherein: the reinforcing block (121) is made of elastic material.

4. The die pad reverse ejection structure of claim 1, wherein: the outer portion of the through rod (3) is integrally provided with a limiting flange (4) in a surrounding mode, a vertical limiting block (23) is arranged in the lower die shell (22), and the limiting flange (4) can abut against the limiting block (23).

5. The die pad reverse-ejection structure according to any one of claims 1 to 4, wherein: lead to stick (3) including outer logical stick (31) and the interior stick (32) that the an organic whole set up, outer logical stick (31) are located interior logical stick (32) right side, and the diameter of outer logical stick (31) is greater than the diameter of interior logical stick (32).