CN203637075U

CN203637075U - Rubber part inner ring groove forming die

Info

Publication number: CN203637075U
Application number: CN201320812339.2U
Authority: CN
Inventors: 肖梅; 杨博; 张敏; 范学江; 曹慧
Original assignee: No 618 Research Institute of China Aviation Industry
Current assignee: No 618 Research Institute of China Aviation Industry
Priority date: 2013-12-10
Filing date: 2013-12-10
Publication date: 2014-06-11
Anticipated expiration: 2023-12-10

Abstract

The utility model belongs to pressing dies and in particular relates to a rubber part inner ring groove forming die. The rubber part inner ring groove forming die comprises an upper template [1], a lower template [2], a cavity die [3], a forming elastic piece [4], a guide post and a spiral core [9], wherein the guide post is arranged on the lower template [2]; a first guide post [6] penetrates through the cavity die [3]; a second guide post [7] penetrates through the forming elastic piece [4], the spiral core [9] and the upper template [1]; the upper template, the lower template and the cavity die form a rubber part forming space; the annular forming elastic piece and the spiral core are matched to form an annular groove forming space and can be positioned by a central guide post and two side guide posts. The rubber part inner ring groove forming die disclosed by the utility model is novel in structure and convenient to operate, the survival rate is increased by 70 percent, and the efficiency is improved by three times.

Description

Rubber parts inner groove mould

Technical field

The utility model belongs to rubber compacting tool set, relates in particular to and utilizes butterfly flexure strip moulding rubber parts inner groove.

Background technology

Former rubber parts inner groove moulding relies on after mould compacting rubber parts, by rubber parts with core rod together by taking out in shaping mould endoporus, then in the time of the larger state of rubber parts temperature drift elasticity, insert the bulge loop disengaging on sled stripping rubber parts and core in rubber parts endoporus with the instrument that levers up, this kind of operation rubber parts survival rate only has 40% left and right, and length consuming time, mould cooling in addition, makes workpiece time lengthening, efficiency is low, be badly in need of improving mould structure, improve survival rate, reduce the wastage.

Summary of the invention

The purpose of this utility model is: provide a kind of structure the convenient and swift mould of peeling off rubber parts disengaging core rod.

The technical solution of the utility model is:

A kind of rubber parts inner groove mould, comprise: cope match-plate pattern 1, lower bolster 2, swaging die 3, forming elastic sheet 4, lead, helical core 9, wherein on lower bolster 2, there is lead, the first lead 6 runs through swaging die 3, the second leads 7 and runs through forming elastic sheet 4, helical core 9 and cope match-plate pattern 1.

Described the first lead 6 is interference fit with lower bolster 2, with swaging die 3 are sliding fits, the second lead 7 is interference fit with lower bolster 2, and with moulding shell fragment 4 are sliding fits, with cope match-plate pattern 1 be sliding fit, helical core 9 is to have one section of threaded engagement with the upper end of the second lead 7.

Hole on 7 the corresponding lower bolsters 2 in described the first hole of lead 6 on lower bolster 2 and the second guide pillar is identical.

Described forming elastic sheet 4 is butterfly sheet.

The utility model has the advantages that: improved rubber parts survival rate, improved 3 times of compacting rubber parts efficiency.

Accompanying drawing explanation

Fig. 1 is the state that the compacting of the utility model mould is prepared.

Fig. 2 is novel die compacting state.

Fig. 3 is rubber parts figure.

Wherein, 1-template, 2-lower bolster, 3-shaping mould, 4-butterfly flexure strip, 5-rubber parts, 6-the first guide pillar, 7-the second guide pillar, 8-clout groove, 9-helical core.

The specific embodiment

Below by specific embodiment, the utility model is further described:

Refer to Fig. 1, Fig. 2, Fig. 3, the utility model rubber parts inner groove mould, comprise: cope match-plate pattern 1, lower bolster 2, swaging die 3, forming elastic sheet 4, lead, helical core 9, wherein on lower bolster 2, there is lead, the first lead 6 runs through swaging die 3, the second leads 7 and runs through forming elastic sheet 4, helical core 9 and cope match-plate pattern 1.

Described forming elastic sheet 4 is butterfly sheet.

The utility model utilizes butterfly flexure strip 4 to be shaped, referring to Fig. 1.Rubber parts endoporus is by the boss on lower bolster 2 and helical core 9 moulding.

Butterfly flexure strip 4 and lower bolster 2, helical core 9 are coaxially located by the second guide pillar 7, and the first guide pillar 6 mating holes are take guide pillar 7 mating holes as benchmark processes, and have guaranteed axiality in rubber part products cylindrical and hole; Utilize the press-stretched of butterfly flexure strip and reclaim function and depart from fast rubber parts inner groove.

Two holes on shaping mould 3 are put on the first guide pillar 6, butterfly flexure strip is enclosed within on the second guide pillar 7, knob helical core 9 flattens butterfly flexure strip, put into green glue stock and enter into the space that lower bolster boss helical core and shaping mould 3 form, template 1 is pressed in for 7 times on shaping mould in plane along the second guide pillar.A whole set of mould is placed in compression molding machine worktable, starts vulcanizing press compression pump.Mould and sizing material are through heating pressurization, and raw rubber is through glue refining reaction, rubber sulfidization molding.Redundant rubber stock enters in clout groove 8.Take out mould, lever up cope match-plate pattern 1.Unscrew helical core 9, now butterfly flexure strip 4 resets, by bouncing back in rubber parts inner groove.Lever up shaping mould 3 rubber parts 5 is taken out from shaping mould 3 holes, complete compaction procedure one time.

Claims

1. a rubber parts inner groove mould, it is characterized in that: comprise cope match-plate pattern [1], lower bolster [2], swaging die [3], forming elastic sheet [4], lead, helical core [9], wherein, described lower bolster has lead on [2], the first lead [6] runs through swaging die [3], and the second lead [7] runs through forming elastic sheet [4], helical core [9] and cope match-plate pattern [1].

2. rubber parts inner groove mould according to claim 1, it is characterized in that, described the first lead [6] is interference fit with lower bolster [2], with swaging die [3] be sliding fit, the second lead [7] is interference fit with lower bolster [2], and with moulding shell fragment [4] be sliding fit, with cope match-plate pattern [1] be sliding fit, helical core [9] is to have one section of threaded engagement with the upper end of the second lead [7].

3. according to the rubber parts inner groove mould described in claims 1, it is characterized in that, the hole of described the first lead [6] on lower bolster [2] and the second guide pillar [7] the hole on corresponding lower bolster [2] identical.

4. according to rubber parts inner groove mould described in claims 1, it is characterized in that, described forming elastic sheet [4] is butterfly sheet.