CN211363449U

CN211363449U - O-shaped ring non-flash die

Info

Publication number: CN211363449U
Application number: CN201921527226.1U
Authority: CN
Inventors: 华沛旻; 汪超
Original assignee: Wuxi Lyuyuan Automobile Parts Co ltd
Current assignee: Wuxi Lyuyuan Automobile Parts Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-08-28
Anticipated expiration: 2029-09-12

Abstract

The utility model relates to an O-shaped ring non-flash die, which comprises an upper die plate and a lower die plate, wherein the upper die plate and the lower die plate are positioned by a coarse positioning mechanism and a fine positioning mechanism; the coarse positioning mechanism is of a rigid structure, and the fine positioning mechanism is of a telescopic structure; an upper semicircular arc groove is formed in the upper template, an upper surplus material containing groove is formed in the inner side and the outer side of the upper semicircular arc groove, and an upper trimming edge is formed between the upper semicircular arc groove and the upper surplus material containing groove; the lower half arc groove is arranged below the lower template, the inner side and the outer side of the lower half arc groove are provided with a lower surplus material groove, and a lower trimming edge is arranged between the half arc groove and the lower surplus material groove. The utility model discloses, can guarantee that the product is when the demolding, the overlap is directly got rid of, and fundamentally has solved the difficult problem of rubber product deburring.

Description

O-shaped ring non-flash die

Technical Field

The utility model belongs to the technical field of the mould, a O type circle does not have overlap mould is related to.

Background

For rubber products, edge tearing is the most headache problem encountered by people in the rubber industry, although a plurality of devices for assisting edge tearing, such as a stone sander and a freezing trimmer, are available at present, due to factors such as product structures and sizing materials, the edges of a plurality of products cannot be completely removed by using auxiliary devices, and the removal of the edges by using the auxiliary devices also increases the production cost, so that the problem of the edges of the rubber products must be fundamentally solved.

Disclosure of Invention

An object of the utility model is to provide a no overlap mould of O type circle can guarantee that the product is when the demolding, and the overlap is directly got rid of, and fundamentally has solved the difficult problem of rubber product deburring.

According to the utility model provides a technical scheme: the O-shaped ring non-flash die comprises an upper die plate and a lower die plate, wherein the upper die plate and the lower die plate are positioned through a coarse positioning mechanism and a fine positioning mechanism; the coarse positioning mechanism is of a rigid structure, and the fine positioning mechanism is of a telescopic structure; an upper semicircular arc groove is formed in the upper template, an upper material containing groove is formed in the inner side and the outer side of the upper semicircular arc groove, and an upper edge cutting edge is arranged between the upper semicircular arc groove and the upper material containing groove; the lower template is provided with a lower semi-circular arc groove, the inner side and the outer side of the lower semi-circular arc groove are provided with a lower surplus material groove, and a lower trimming edge is arranged between the semi-circular arc groove and the lower surplus material groove.

As a further improvement of the present invention, the coarse positioning mechanism includes a coarse positioning hole and a coarse positioning column; the thick positioning hole is formed in the lower template, and the thick positioning column is arranged on the upper template.

As a further improvement of the utility model, the fine positioning mechanism comprises a guide sleeve and a guide pillar, the guide sleeve is installed in the lower template, the top of the guide sleeve is a positioning groove, the upper template is provided with a counter bore, and a through hole and a guide pillar cavity are arranged below the counter bore in sequence; the guide post is arranged in the guide post cavity in a sliding mode, an internal thread section is formed in the middle of the guide post, a positioning boss is arranged at the bottom of the guide post and extends out of the bottom of the guide post cavity, a guide post bolt is connected to the upper portion of the guide post, the head of the guide post bolt is located in the counter bore, the middle section of the guide post bolt is located in the through hole, the lower section of the guide post bolt is connected with the internal thread section, and a spring is arranged between the guide post and the top of the guide post cavity.

As a further improvement of the utility model, the width of the upper edge cutting edge and the width of the lower edge cutting edge are both 0.1 mm.

As a further improvement of the present invention, the positioning groove is matched with the positioning boss by an inclined plane.

As a further improvement of the utility model, the upper holding excess trough and the lower holding excess trough periphery are oblique angles.

As a further improvement, the thick locating hole sets up the lower bolster four corners, thick reference column sets up the cope match-plate pattern four corners.

As a further improvement of the present invention, the thick positioning hole is in clearance fit with the thick positioning column.

As a further improvement of the utility model, the spring is a disc spring.

Compared with the prior art, the utility model, have following advantage:

1. the utility model has simple structure and small occupied space; the flash can be directly removed when the product is demoulded, and the problem that the flash of the rubber product is difficult to remove is fundamentally solved.

2. The utility model discloses the accurate positioning adopts disc spring's structure, can guarantee like this that the mould just begins to act in the accurate positioning before closing to die, closes to die up to the mould.

Drawings

Fig. 1 is a front sectional view of the present invention.

Fig. 2 is a schematic sectional view of the coarse positioning mechanism of the present invention.

Fig. 3 is a schematic sectional structure view of C-C in fig. 1.

Fig. 4 is an enlarged schematic view of a region D in fig. 1.

Fig. 5 is a schematic structural view of the upper mold plate portion in the fine positioning mechanism of the present invention.

Fig. 6 is a schematic structural view of the middle guide pillar of the present invention.

Fig. 7 is a schematic structural diagram of the product of the present invention.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings.

In the figures 1-7, the device comprises a lower template 1, a guide sleeve 2, a guide pillar 3, an internal thread section 3-1, a positioning boss 3-2, a spring 4, an upper template 5, a guide pillar bolt 6, an upper semi-arc groove 7, an upper residual material containing groove 8, a lower semi-arc groove 9, a lower residual material containing groove 10, a coarse positioning hole 11, a coarse positioning column 12, a counter bore 13, a through hole 14, a guide pillar cavity 15 and the like.

As shown in fig. 1-2, the utility model relates to a no overlap mould of O type circle, including cope match-plate pattern 5 and lower bolster 1, cope match-plate pattern 5 and lower bolster 1 are fixed respectively on stamping equipment's upper and lower hot plate, and cope match-plate pattern 5 and lower bolster 1 fix a position through thick positioning mechanism and smart positioning mechanism. The coarse positioning mechanism is of a rigid structure, and the fine positioning mechanism is of a telescopic structure. As shown in fig. 5, the upper die plate 5 is provided with an upper semicircular groove 7, an upper allowance groove 8 is formed inside and outside the upper semicircular groove 7, and an upper edge is formed between the upper semicircular groove 7 and the upper allowance groove 8. Lower semicircular arc groove 9 is arranged below lower template 1, and the inside and outside of lower semicircular arc groove 9 is for holding clout groove 10 down, and lower edge of trimming is between lower semicircular arc groove 9 and hold clout groove 10 down.

As shown in fig. 3, the coarse positioning mechanism includes coarse positioning holes 11 and coarse positioning pillars 12, the coarse positioning holes 11 are disposed at four corners of the lower mold plate 1, the coarse positioning pillars 12 are disposed at four corners of the upper mold plate 5, and the coarse positioning holes 11 and the coarse positioning pillars 12 are in clearance fit.

As shown in fig. 4, the fine positioning mechanism includes a guide sleeve 2 and a guide post 3, the guide sleeve 2 is uniformly installed in the lower template 1 through a screw, the top of the guide sleeve 2 is a positioning groove, as shown in fig. 6, a counter bore 13 is opened on the upper template 5, and a through hole 14 and a guide post cavity 15 are sequentially arranged below the counter bore 13. The guide post 3 is slidably arranged in the guide post cavity 15, as shown in fig. 7, the middle part of the guide post 3 is provided with an internal thread section 3-1, the bottom of the guide post 3 is provided with a positioning boss 3-2, and the positioning boss 3-2 extends out of the bottom of the guide post cavity 15. The upper part of the guide post 3 is in threaded connection with a guide post bolt 6, the head part of the guide post bolt 6 is positioned in the counter bore 13, the middle section of the guide post bolt 6 is positioned in the through hole 14, and the lower section of the guide post bolt 6 is connected with the internal thread section 3-1. Set up spring 4 between guide pillar 3 and the guide pillar chamber 15 top, spring 4 provides the pretightning force for smart positioning mechanism, and in this embodiment, spring 4 is belleville spring.

It should be explained that, due to the elastic force of the spring 4, the guide post 3 is in close contact with the lower end of the guide post cavity 15 (the head of the guide post bolt 6 abuts against the bottom surface of the counterbore 13) in the non-positioning state, and as the upper mold plate 5 moves downwards, when the guide post 3 comes into contact with the guide sleeve 2, the guide post 3 gradually moves upwards in the guide post cavity 15. The advantage of this design is that when the dies are severely misaligned, the upper and lower dies interfere and the guide post 3 can move to the upper section of the guide post cavity 15, avoiding damage.

The width of the upper edge cutting edge and the width of the lower edge cutting edge are both 0.1mm, so that the excess material is accurately cut off, and the extruded O-shaped ring is ensured not to have flash.

The positioning groove is matched with the positioning boss 3-2 in an inclined plane, so that the positioning is easier.

The peripheries of the upper holding excess material groove 8 and the lower holding excess material groove 10 are designed to be oblique angles, and the upper edge cutting edge and the lower edge cutting edge are guaranteed to be sharp enough.

The working process of the utility model is as follows:

the sheet stock is placed on the lower die plate 1, the stamping device is started, the upper die plate 5 moves downwards, the coarse positioning column 12 enters the coarse positioning hole 11 for coarse positioning, the die is prevented from being seriously dislocated, and after the end part of the coarse positioning column 12 enters the coarse positioning hole 11, the positioning boss 3-2 enters the positioning groove for fine positioning. When the upper semicircular groove 7 is attached to the lower semicircular groove 9, the upper trimming edge and the lower trimming edge cut off excess materials inside and outside the O-shaped ring, and the excess materials enter the upper excess material containing groove 8 and the lower excess material containing groove 10. The formed product is shown in fig. 7.

Claims

1. The utility model provides a no overlap mould of O type circle which characterized in that: the die comprises an upper die plate (5) and a lower die plate (1), wherein the upper die plate (5) and the lower die plate (1) are positioned through a coarse positioning mechanism and a fine positioning mechanism; the coarse positioning mechanism is of a rigid structure, and the fine positioning mechanism is of a telescopic structure; an upper semicircular arc groove (7) is formed in the upper template (5), an upper containing excess material groove (8) is formed in the inner side and the outer side of the upper semicircular arc groove (7), and an upper trimming edge is arranged between the upper semicircular arc groove (7) and the upper containing excess material groove (8); lower semicircle trough (9) have been seted up under lower bolster (1), semicircle trough (9) inboard is for holding clout groove (10) down, semicircle trough (9) down with hold for lower edge cutting sword between clout groove (10) down.

2. The flashless O-ring mold of claim 1 wherein: the coarse positioning mechanism comprises a coarse positioning hole (11) and a coarse positioning column (12); the coarse positioning holes (11) are formed in the lower template (1), and the coarse positioning columns (12) are arranged on the upper template (5).

3. The flashless O-ring mold of claim 1 wherein: the fine positioning mechanism comprises a guide sleeve (2) and a guide post (3), the guide sleeve (2) is installed in the lower template (1), the top of the guide sleeve (2) is provided with a positioning groove, the upper template (5) is provided with a counter bore (13), and a through hole (14) and a guide post cavity (15) are sequentially arranged below the counter bore (13); the guide post is characterized in that a guide post (3) is arranged in the guide post cavity (15) in a sliding mode, an internal thread section (3-1) is formed in the middle of the guide post (3), a positioning boss (3-2) is arranged at the bottom of the guide post (3), the positioning boss (3-2) extends out of the bottom of the guide post cavity (15), a guide post bolt (6) is connected to the upper portion of the guide post (3), the head of the guide post bolt (6) is located in the counter bore (13), the middle section of the guide post bolt (6) is located in the through hole (14), the lower section of the guide post bolt (6) is connected with the internal thread section (3-1), and a spring (4) is arranged between the guide post (3) and the top of.

4. The flashless O-ring mold of claim 1 wherein: the width of the upper edge cutting edge and the width of the lower edge cutting edge are both 0.1 mm.

5. The flashless O-ring mold of claim 3 wherein: the positioning groove is matched with the positioning boss (3-2) in an inclined plane.

6. The flashless O-ring mold of claim 1 wherein: the peripheries of the upper holding excess trough (8) and the lower holding excess trough (10) are oblique angles.

7. The flashless O-ring mold of claim 2 wherein: the thick positioning holes (11) are arranged at four corners of the lower template (1), and the thick positioning columns (12) are arranged at four corners of the upper template (5).

8. The flashless O-ring mold of claim 2 wherein: the coarse positioning hole (11) is in clearance fit with the coarse positioning column (12).

9. The flashless O-ring mold of claim 3 wherein: the spring (4) is a disc spring.