CN214977312U

CN214977312U - Anti-rotation positioning structure for ejection block in mold

Info

Publication number: CN214977312U
Application number: CN202120517773.2U
Authority: CN
Inventors: 朱帆; 徐伟军
Original assignee: CFTC PRECISION (JIA-XING) Ltd
Current assignee: CFTC PRECISION (JIA-XING) Ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-12-03
Anticipated expiration: 2031-03-11

Abstract

The utility model discloses an ejecting piece anti-rotation positioning structure in mould, including going into piece and ejecting piece, go into the piece and have the pilot hole, ejecting piece assembles in the pilot hole, characterized by: the guide rib that the shaping has along the axial extension of pilot hole on the inner wall of pilot hole, the shaping has the guide way on the lateral wall of ejecting piece, guide rib and guide way direction cooperation. The utility model discloses location stable in structure for ejecting piece can promote product quality in the stable work that reciprocates in going into the piece.

Description

Anti-rotation positioning structure for ejection block in mold

Technical Field

The utility model relates to a location structure of mould inner part, more specifically relate to a ejecting piece anti-rotation location structure in mould.

Background

As shown in fig. 3, the ejector block in the mold is assembled in the inner hole of the insert, and in many cases, the outer shape of the ejector block 3 is round, and the inner hole 12 of the insert 1 is also round, so that the ejector block 3 rotates relative to the insert 1 during the assembling or production process. In the existing design, a punch 5 is used for positioning, the diameter of the punch is 5.10mm, the length of the punch is 68mm, the punch belongs to a slender punch, the positioning effect is poor, the produced workpiece has the phenomenon of poor position degree, and the production quality of the product is influenced. There is room for improvement in anti-rotational positioning of such structures.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an ejecting piece anti-rotation location structure in mould, location stable in structure for ejecting piece can promote product quality in the work of reciprocating of going into piece internal stability.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides an ejecting piece anti-rotation location structure in mould, includes into piece and ejecting piece, goes into the piece and has the pilot hole, and ejecting piece assembles in the pilot hole, characterized by: the guide rib that the shaping has along the axial extension of pilot hole on the inner wall of pilot hole, the shaping has the guide way on the lateral wall of ejecting piece, guide rib and guide way direction cooperation.

Preferably, the guide ribs and the guide grooves have at least two sets which are fitted to each other.

Preferably, set up the uide bushing in the pilot hole of income piece, the shaping of guide rib is on the inner wall of uide bushing, the sliding sleeve has on the ejecting piece, the guide way is seted up on the lateral wall of sliding sleeve.

Preferably, the outer side wall of the sliding sleeve is provided with a spiral oil storage groove.

Preferably, the guide sleeve is assembled in the assembling hole of the insert block through a bolt, and the sliding sleeve is fixed on the ejection block through a bolt.

Preferably, the ejector block has a head with an increased diameter to form an outer step on an outer sidewall of the ejector block.

Compared with the prior art, the utility model has the advantages that: through the cooperation of guide rib and guide way, can show the stability of promoting ejecting piece and assembling in going into the piece, still saved the setting of punching simultaneously.

Drawings

Fig. 1 is a schematic view of an anti-rotation positioning structure of an ejection block in a mold according to the embodiment;

fig. 2 is a cross-sectional view of an anti-rotation positioning structure of an ejection block in a mold according to the embodiment;

fig. 3 is a schematic view of the ejection block provided in this embodiment;

fig. 4 is a schematic view of a rotation-preventing positioning structure of an ejection block in a mold in the prior art.

Detailed Description

The anti-rotation positioning structure of the ejection block in the mold of the present invention is further described with reference to fig. 1 to 4.

The utility model provides an ejecting piece anti-rotation location structure in mould, includes into 1 and ejecting 3, goes into 1 and has pilot hole 11, and ejecting 3 assembles in pilot hole 11, characterized by: the inner wall of the assembly hole 11 is formed with a guide rib 21 extending along the axial direction of the assembly hole 11, the outer side wall of the ejection block is formed with a guide groove 41, and the guide rib 21 is in guide fit with the guide groove 41. Through the hole punching setting among the prior art of the cooperation replacement of guide rib 21 and guide way 41, not only can promote the stability of ejecting piece 3 assembly in income piece 1 to promote the quality of product production, but also can save the setting of hole punching.

As a preferred embodiment, the present invention is further configured to: the cross section of the guide rib 21 is a semicircular structure, and correspondingly, the cross section of the guide groove 41 is also a semicircular structure.

As a preferred embodiment, the present invention is further configured to: the guide ribs 21 and the guide grooves 41 have at least two sets, which are provided in the present embodiment and are symmetrically disposed on the assembly holes 11 and the ejector blocks. It should be noted that, the specific number of the guide ribs and the guide grooves can be set according to actual requirements.

As a preferred embodiment, the present invention is further configured to: the guide sleeve 2 is coaxially assembled in the assembly hole 11 of the insert 1, the guide rib 21 is formed on the inner wall of the guide sleeve 2, the ejection block is provided with the sliding sleeve 4, and the guide groove 41 is arranged on the outer side wall of the sliding sleeve 4. When the ejection block 3 moves up and down relative to the insertion block 1, the sliding sleeve 4 is in contact with the guide sleeve 2, so that after frequent use, only the sliding sleeve 4 and the guide sleeve 2 are abraded, the insertion block 1 is caused to have an assembly gap in the assembly hole 11, only the guide sleeve 2 and the sliding sleeve 4 need to be replaced under the condition, the whole ejection block 3 or the insertion block 1 does not need to be replaced, and the production cost is saved.

As a preferred embodiment, the present invention is further configured to: the outer side wall of the sliding sleeve 4 is provided with a spiral oil storage groove 42. This oil storage tank 42 can make lubricating oil can be preserved on the lateral wall of sliding sleeve 4 to promote the lubricity that ejecting piece 3 removed in pilot hole 11, and then promote the normal life of uide bushing 2 and sliding sleeve 4.

As a preferred embodiment, the present invention is further configured to: the guide sleeve 2 is assembled in the assembling hole 11 of the insert block 1 through a bolt, and the sliding sleeve 4 is fixed on the ejection block 3 through a bolt. Through the bolt fastening, not only structural strength is stable, easy dismounting moreover does the utility model discloses an optimal selection scheme.

As a preferred embodiment, the present invention is further configured to: the ejector block 3 has a head 31 with an increased diameter to form an outer step on the outer side wall of the ejector block 3. In operation, the outer step can abut against the top of the guide sleeve 2 to form a seal against the upper surface of the insert 1.

Unless otherwise specified, in the present invention, if the terms "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an ejecting piece anti-rotation location structure in mould, includes into piece and ejecting piece, goes into the piece and has the pilot hole, and ejecting piece assembles in the pilot hole, characterized by: the guide rib that the shaping has along the axial extension of pilot hole on the inner wall of pilot hole, the shaping has the guide way on the lateral wall of ejecting piece, guide rib and guide way direction cooperation.

2. The anti-rotation positioning structure for the ejection block in the mold according to claim 1, wherein: the guide ribs and the guide grooves are at least provided with two groups which are matched with each other.

3. The anti-rotation positioning structure for the ejection block in the mold according to claim 2, wherein: the guide sleeve is arranged in the assembling hole of the insert, the guide rib is formed on the inner wall of the guide sleeve, the ejection block is provided with the sliding sleeve, and the guide groove is formed in the outer side wall of the sliding sleeve.

4. The anti-rotation positioning structure for the ejection block in the mold according to claim 3, wherein: and a spiral oil storage tank is arranged on the outer side wall of the sliding sleeve.

5. The anti-rotation positioning structure for the ejection block in the mold according to claim 4, wherein: the guide sleeve is assembled in the assembling hole of the insert through a bolt, and the sliding sleeve is fixed on the ejection block through a bolt.

6. The anti-rotation positioning structure for the ejection block in the mold according to claim 5, wherein: the ejector block has a head portion with an increased diameter to form an outer step on an outer sidewall of the ejector block.