CN201324741Y

CN201324741Y - Core roller for profile ring forging tool of middle die sleeve in automobile tire die

Info

Publication number: CN201324741Y
Application number: CNU200820238160XU
Authority: CN
Inventors: 赵长宝
Original assignee: JIANGYIN ZHENHONG HEAVY FORGING CO Ltd
Current assignee: JIANGYIN ZHENHONG HEAVY FORGING CO Ltd
Priority date: 2008-12-22
Filing date: 2008-12-22
Publication date: 2009-10-14
Anticipated expiration: 2018-12-22

Abstract

The utility model relates to a core roller for the profile ring forging tool of the middle die sleeve in an automobile tire die, which is mainly used for forging the middle die sleeve of an automobile tire die. A truncated conical section (1.1) is arranged in the middle of the outer edge of the core roller, and the lower end of the core roller is designed into a straight section (1.2). The core roller is favorable for the stable rotation and the rolling deformation of work pieces.

Description

The middle die sleeve special-shaped ring forgeable piece tool core roller of automobile tire mould

(1) technical field

The utility model relates to a kind of middle die sleeve, especially relates to a kind of middle die sleeve special-shaped ring forgeable piece tool of automobile tire mould.The middle die sleeve that is mainly used in automobile tire mould forges.Belong to the automobile tire mould technical field.

(2) background technology

Middle die sleeve is the important component part of automobile tire mould.Middle die sleeve structure as shown in Figure 1.Its internal diameter has a conical surface.Because the conical surface of this workpiece diameter, internal diameter two ends size is inconsistent, and the required materials variances in workpiece two ends is very big, and an end material is many, and an end material is few, therefore is unfavorable for workpiece smooth rotation and rolling deformation.

(3) summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of middle die sleeve special-shaped ring forgeable piece tool core roller that is beneficial to the automobile tire mould of workpiece smooth rotation and rolling deformation is provided.

The purpose of this utility model is achieved in that a kind of middle die sleeve special-shaped ring forgeable piece tool core roller of automobile tire mould, is arranged to truncted cone section in the middle of the described core roller outer rim, and core roller lower end is designed to a straight section.

The utility model frock helps workpiece smooth rotation and rolling deformation with the core roller.

(4) description of drawings

The middle die sleeve structural representation that Fig. 1 relates to for the utility model.

Fig. 2 is the core roll structure schematic diagram of the utility model frock.

Fig. 3 is the heading die mat structure schematic diagram of the utility model frock.

Fig. 4 is a blank shape schematic diagram behind the utility model frock jumping-up.

Fig. 5 is a utility model frock special punch schematic diagram.

The blank figure that Fig. 6 finally makes for the utility model frock.

The forging drawing that Fig. 7 finally makes for the utility model frock.

Reference numeral among the figure:

Core roller 1, jumping-up die-cushion 2, drift 3, truncted cone section 1.1, straight section 1.2, step 2.1, endoporus 2.2, last shell portion 3.1, middle frustoconical section 3.2, following shell portion 3.3.

(5) specific embodiment

The middle die sleeve special-shaped ring forgeable piece tool of the automobile tire mould that the utility model relates to, the middle die sleeve structure of required processing as shown in Figure 1.Because its internal diameter has a conical surface,, see core roller Fig. 2 if, must process corresponding truncted cone section 1.1 in core roller 1 outer rim with its rolling comes out.Therefore when the blocking blank, must consider this factor.Designed a jumping-up die-cushion 2, as shown in Figure 3 for this reason.These jumping-up die-cushion 2 outer rims have a step 2.1, and endoporus 2.2 is a truncated inverted cone hole, during jumping-up blank are inserted in this jumping-up die-cushion 2 and carry out, and make the shape of blank as shown in the figure shown in 4.Carry out punching with special punch 3 as shown in Figure 5 again, the blank of finally making is seen Fig. 6.The described drift 3 of Fig. 5 constitutes a drift integral body by last shell portion 3.1, middle frustoconical section 3.2 and following shell portion 3.3 coaxial settings from top to bottom successively, the diameter of described upward shell portion 3.1 is identical with the smaller diameter end diameter of middle frustoconical section 3.2, and the diameter of described shell portion 3.3 down is identical with the larger diameter end diameter of middle frustoconical section 3.2.Climb roller for the prevention workpiece in the operation of rolling, designed a straight section 1.2 in core roller 1 lower end, be beneficial to workpiece smooth rotation and rolling deformation.Finally see forging drawing 7 for forging.

Claims

1, a kind of middle die sleeve special-shaped ring forgeable piece tool core roller of automobile tire mould is characterized in that being arranged to truncted cone section (1.1) in the middle of the described core roller outer rim, and core roller lower end is designed to a straight section (1.2).