CN109590382B

CN109590382B - Side core-pulling inclined guide pillar

Info

Publication number: CN109590382B
Application number: CN201811304986.6A
Authority: CN
Inventors: 傅海涛; 杨浩军; 张小亮
Original assignee: Yongkang Tengyi Automobile Mould Co ltd
Current assignee: Yongkang Tengyi Automobile Mould Co ltd
Priority date: 2018-11-02
Filing date: 2018-11-02
Publication date: 2020-08-11
Anticipated expiration: 2038-11-02
Also published as: CN109590382A

Abstract

The invention discloses a side core-pulling inclined guide post, which comprises a guide post body and is characterized in that the lower end part of the guide post body is connected with a guide post head in a floating mode along the axial direction of the guide post body, a floating mechanism is connected between the guide post head and the guide post body, the floating mechanism comprises a sliding rod which is integrally arranged with the guide post head, and a slide way which is axially arranged along the guide post body and matched with the sliding rod, a pull-back mechanism which drives the guide post head to slide towards the guide post body and enables the guide post head and the guide post body to form a complete inclined guide post and a reset mechanism which drives the guide post head to be far away from the guide post body are arranged between one end, far away from the guide.

Description

Side core-pulling inclined guide pillar

Technical Field

The invention relates to the field of molds, in particular to an inclined guide pillar in a middle-side core-pulling structure of a mold.

Background

The side core-pulling stamping die in the prior art comprises a movable die assembly, a fixed die assembly and a side core-pulling mechanism, wherein the fixed die assembly comprises a fixed die base plate and a fixed die plate fixedly arranged on the fixed die base plate, the movable die assembly comprises a push-out mechanism, a movable die base plate, two supporting plates and a movable die plate arranged on the movable die base plate through the supporting plates, the supporting plates are respectively and fixedly arranged on two sides of the movable die base plate, a die cavity for stamping is formed between the movable die plate and the fixed die plate, the side core-pulling mechanism comprises a side sliding block, an inclined guide pillar, a limiting component and a locking block, the inclined guide pillar penetrates through the fixed die plate and is fixed on the fixed die base plate, the side sliding block is provided with an inclined guide hole matched with the inclined guide pillar in a sliding manner, the limiting component positions the core-pulling stroke of the, the side core-pulling function of the product is realized.

The actual working conditions of the side sliding block and the inclined guide pillar are as follows: when the mold is opened, the inclined guide post and the side slide block are completely separated, meanwhile, the side slide block slides outwards to realize core pulling, when the mold is closed, the end part of the inclined guide post firstly penetrates into the inclined guide hole of the side slide block, then in the process of continuing to close the mold, the inclined guide post is matched with the inclined guide hole, so that the side slide block slides to the position of the mold cavity, and finally slides to the molding position of the mold cavity. Under the use environment of the working condition, the end part of the inclined guide post is separated from the inclined guide hole of the side slide block before mold closing, so that during mold closing, a large impulse between the end part of the inclined guide post and the end part of the inclined guide hole is inevitably generated, even if the inclined guide post and the side slide block have high hardness, after the inclined guide post and the side slide block are used for a period of time, the end part of the inclined guide post and the hole opening of the inclined guide hole are greatly abraded, the surface is rough, and in addition, deformation occurs in serious conditions, and the normal use of the inclined guide post and the side slide block.

Disclosure of Invention

The invention aims to provide an inclined guide post capable of reducing the abrasion degree between the inclined guide post and a side sliding block in a side core-pulling structure.

The above object of the present invention is achieved by the following technical solutions: the utility model provides a side oblique guide pillar of loosing core, includes the guide pillar body, its characterized in that, the lower tip of guide pillar body floats along the axial of guide pillar body to be connected with the guide column cap, be connected with relocation mechanism between guide column cap and the guide pillar body, relocation mechanism includes the slide bar that sets up with guide pillar head is integrative to and set up along guide pillar body axial and with slide bar complex slide, the slide bar is kept away from to be provided with between the one end of leading the column cap and the guide pillar body and orders about the guide pillar head and slides to the guide pillar body and make guide column cap and guide pillar body form the pull-back mechanism of a complete oblique guide pillar and be provided with and order about the canceling release mechanical system that the guide

The pull-back mechanism comprises a butting block arranged at the end part of the sliding rod and a top block arranged along the radial direction of the guide pillar body, the top block is connected with the guide pillar body in a sliding mode, an inclined surface structure is arranged on the contact side of the top block and the butting block, when the top block moves towards the interior of the guide pillar body, the sliding rod is driven to drive the guide pillar head to move towards the direction of the guide pillar body, and when one end, far away from the butting block, of the top block is flush with the pillar wall of the guide pillar body, the guide pillar head and the guide pillar body form a complete inclined guide pillar;

the reset mechanism comprises a spring groove arranged in the guide pillar body, wherein a reset spring is arranged in the spring groove and drives a sliding rod to be away from the guide pillar body, a dodging groove is formed in the tail end of a slide way, the dodging groove enables a supporting block to partially enter the dodging groove, and when the supporting block touches the groove wall of the dodging groove, the guide pillar head is located at the limit position away from the guide pillar body, and the top block and the inclined plane of the supporting block are partially in an overlapped state.

Preferably, the end of the top block far from the abutting block is provided with a spherical top pressing surface, when the guide pillar head is at the limit position far from the guide pillar body, the top pressing surface of the top block partially extends out of the guide pillar body, and when the inclined guide pillar is inserted into the inclined guide hole of the side slide block matched with the inclined guide pillar, the top pressing surface is pressed by the hole wall of the inclined guide hole and retracts into the guide pillar body.

Preferably, an anti-falling structure for preventing the ejector block from falling out of the guide column body is arranged between the ejector block and the guide column body, the anti-falling structure comprises an anti-falling bulge arranged on the side wall of the ejector block in a protruding mode and an anti-falling groove arranged on the guide column body along the sliding direction of the ejector block, the anti-falling bulge is arranged in the anti-falling groove, and in the sliding process of the ejector block, the anti-falling bulge slides in the anti-falling groove.

Preferably, the inclined surface structure comprises a first inclined surface arranged at one end, facing the abutting block, of the ejecting block and a second inclined surface arranged at one end, facing the abutting block, of the abutting block, and when the ejecting block and the abutting block move relatively, the first inclined surface and the second inclined surface slide, so that the abutting block drives the sliding rod to axially displace.

Compared with the prior art, when the inclined guide post and the side slide block are separated, the guide post head is positioned at the limit position far away from the guide post body under the action of the spring, the top pressing surface part of the top block extends out of the guide post body, then the guide post head contacts the inclined guide hole of the side slide block firstly when the mold is closed, because of the floating connection relationship between the guide post head and the guide post body, the contact between the guide post head and the inclined guide hole is soft contact, compared with the hard contact in the prior art, the impulse of the guide post head when the guide post head contacts the inclined guide hole is very small at the beginning, so that the collision and the abrasion between the guide post head and the inclined guide hole are reduced, then the guide post head is firstly propped against the hole of the inclined guide hole in the process of continuing the mold closing, simultaneously, the guide post body approaches the guide post head to the side slide block until the guide post body and the guide post head form an integral inclined guide post, and then the guide post head is separated, the guide post body is located at the limit position away from the guide post body again; then after the ejector block of the guide pillar body with the ejector pressing surface part is contacted with the inclined guide hole, the ejector pressing surface is pressed by the hole wall of the inclined guide hole, the ejector block moves towards the abutting block, the first inclined surface of the ejector block and the second inclined surface of the abutting block slide relatively, the guide pillar head moves towards the guide pillar body until a complete inclined guide pillar whole body is formed, in this state, no gap can be generated between the guide pillar head and the guide pillar body, and when the inclined guide pillar is retracted from the lower hole opening of the inclined guide hole during mold opening, the gap between the guide pillar head and the guide pillar body can not generate interference collision with the lower hole opening of the inclined guide hole.

Drawings

FIG. 1 is a partial isometric view of an embodiment;

FIG. 2 is a cross-sectional view of the oblique guide post of the embodiment (a state view when the guide post head is integrated with the guide post body);

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a cross-sectional view of the angle guide post of the embodiment (a state where the guide post head is disengaged from the guide post body);

FIG. 6 is an enlarged view of the portion B of FIG. 5;

FIG. 7 is a view showing the engagement of the angle guide post and the side slider in this embodiment (the state where the angle guide post is inserted into the angle guide hole);

fig. 8 is a fitting view of the oblique guide post and the side slider in the present embodiment (a state when the oblique guide post and the side slider are separated).

In the figure: 1. a guide post body; 11. a slideway; 111. an avoidance groove; 12. a chute; 121. a drop-proof groove; 13. a spring mounting groove; 2. a column head is guided; 21. a slide bar; 211. a second inclined plane; 3. a top block; 31. pressing the surface; 32. a first inclined plane; 33. the anti-falling bulge is formed; 4. a spring; 5. a side slider; 51. and (6) oblique guide holes.

Detailed Description

The invention will be further described by means of specific embodiments, which are given by way of illustration only and are not intended to limit the scope of the invention.

Examples

A side core-pulling inclined guide post is shown in attached figures 1-6, and comprises a guide post body 1 and a guide post head 2, wherein a sliding rod 21 is arranged on one side, facing the guide post body 1, of the guide post head 2, a slide rail 11 matched with the sliding rod 21 is axially arranged inwards at one end, facing the guide post head 2, of the guide post body 1, a sliding groove 12 penetrates through the tail end of the slide rail 11 along the radial direction of the guide post body 1, ejector blocks 3 are arranged in two sliding grooves 12 symmetrically arranged on the slide rail 11 respectively, and the ejector blocks 3 are matched with abutting blocks at the tail end of the sliding rod 21.

Wherein, be provided with first inclined plane 32 towards one side of supporting the piece at kicking block 3, support one side of piece towards kicking block 3 and be provided with second inclined plane 211, at the in-process that slides of kicking block 3, first inclined plane 32 will take place relative slip with second inclined plane 211, can make kicking block 3 along the radial displacement volume of guide pillar body 1 transform into the axial slippage of slide bar 21 along guide pillar body 1. In order to ensure that the sliding rod 21 has a proper amount of sliding in the axial direction, a yielding groove is provided at the intersection of the slideway 11 and the sliding groove 12, the yielding groove enables the abutting block to partially enter until the second inclined surface 211 abuts against the groove wall of the yielding groove, when the abutting block is at the position, the guide pillar head 2 is at the extreme position far away from the guide pillar body 1, and at the moment, the first inclined surface 32 and the second inclined surface 211 of the ejecting block 3 and the abutting block are partially in an overlapped state, specifically referring to the state shown in fig. 5 and 6.

In order to ensure that the guide post head 2 keeps an extending state when being separated from the side sliding block 5, a spring 4 mounting groove 13 is arranged at the tail end of the sliding way 11 of the guide post body 1, a spring 4 is arranged in the spring 4 mounting groove 13, the spring 4 drives the sliding rod 21 and the guide post head 2 to move towards the direction far away from the guide post body 1, and when the guide post head 2 is at the limit position far away from the guide post body 1, the second inclined surface 211 of the abutting block just abuts against the groove wall of the abdicating groove.

Further, in order to prevent the ejector block 3 from falling out of the sliding groove 12 in the working process, the anti-falling protrusion 33 is arranged on the lower side of the ejector block 3, the sliding groove 12 is provided with the anti-falling groove 121 which is matched with the anti-falling protrusion 33 and is arranged along the sliding direction of the ejector block 3, when the ejector block 3 slides, the anti-falling protrusion 33 slides in the anti-falling groove 121, and the ejector block 3 can be prevented from directly falling out of the sliding groove 12 towards the outer side direction of the guide pillar body 1.

Referring to fig. 7 and 8, a matching state diagram of the oblique guide post and the side slide block 5 is shown, firstly referring to fig. 8, which is a mold splitting state, the oblique guide post and the side slide block 5 are completely separated, at this time, the guide post head 2 is at the extreme position farthest from the guide post body 1 under the action of the spring 4, and when the mold is closed, the oblique guide post will move towards the side slide block 5 under the driving of the movable mold plate. The guide post head 2 will touch the inclined guide hole 51 of the side slide block 5 first, because of the floating connection relationship between the guide post head 2 and the guide post body 1, the contact between the guide post head 2 and the inclined guide hole 51 will be soft contact, the impulse of the guide post head 2 when just beginning to touch the inclined guide hole 51 is very small, thereby reducing the collision and abrasion between the two, then the guide post head 2 will be firstly pushed against the orifice of the inclined guide hole 51 in the process of continuing to close the mold, meanwhile, along with the approach of the guide post body 1 to the side slide block 5, the guide post body 1 will approach the guide post head 2 until the guide post body 1 and the guide post head 2 become an integral inclined guide post, and then the guide post head 2 will gradually separate from the guide post body 1 in the process of inserting the inclined guide hole 51, and is again at the limit position far away from the guide post.

Then, after the top block 3 of the guide post body 1 with the top pressing surface 31 part contacts the inclined guide hole 51, the top pressing surface 31 is pressed by the hole wall of the inclined guide hole 51, so that the top block 3 moves towards the abutting block, the first inclined surface 32 of the top block 3 slides relative to the second inclined surface 211 of the abutting block, so that the guide post head 2 moves towards the guide post body 1 until a complete inclined guide post whole is formed, in this state, no gap will appear between the guide post head 2 and the guide post body 1, and therefore when the inclined guide post retracts from the lower hole of the inclined guide hole 51 during mold opening, the gap between the guide post head 2 and the guide post body 1 cannot generate interference collision with the lower hole of the inclined guide hole 51.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a side oblique guide pillar of loosing core, includes the guide pillar body, its characterized in that, the lower tip of guide pillar body floats along the axial of guide pillar body to be connected with the guide column cap, be connected with relocation mechanism between guide column cap and the guide pillar body, relocation mechanism includes the slide bar that sets up with guide pillar head is integrative to and set up along guide pillar body axial and with slide bar complex slide, the slide bar is kept away from to be provided with between the one end of leading the column cap and the guide pillar body and orders about the guide pillar head and slides to the guide pillar body and make guide column cap and guide pillar body form the pull-back mechanism of a complete oblique guide pillar and be provided with and order about the canceling release mechanical system that the guide

The pull-back mechanism comprises a butting block arranged at the end part of the sliding rod and a top block arranged along the radial direction of the guide pillar body, the top block is connected with the guide pillar body in a sliding mode, an inclined surface structure is arranged on the contact side of the top block and the butting block, when the top block moves towards the interior of the guide pillar body, the sliding rod is driven to drive the guide pillar head to move towards the direction of the guide pillar body, and when one end, far away from the butting block, of the top block is flush with the pillar wall of the guide pillar body, the guide pillar head and the guide pillar body form a complete inclined guide;

2. The side core pulling angle guide post according to claim 1, wherein the end of the top block away from the abutting block is provided with a spherical top pressing surface, when the guide post head is at the limit position away from the guide post body, the top pressing surface of the top block partially extends out of the guide post body, and when the angle guide post is inserted into the side slide block angle guide hole matched with the angle guide post, the top pressing surface is pressed by the wall of the angle guide hole and retracts into the guide post body.

3. The side core pulling inclined guide post according to claim 1 or 2, wherein a falling prevention structure for preventing the ejector block from falling out of the guide post body is arranged between the ejector block and the guide post body, the falling prevention structure comprises a falling prevention protrusion arranged on the side wall of the ejector block and protruding outwards and a falling prevention groove arranged on the guide post body along the sliding direction of the ejector block, the falling prevention protrusion is arranged in the falling prevention groove, and the falling prevention protrusion slides in the falling prevention groove in the sliding process of the ejector block.

4. The side core pulling inclined guide post according to claim 1, wherein the inclined surface structure comprises a first inclined surface arranged at one end of the top block facing the abutting block, and a second inclined surface arranged at one end of the abutting block facing the top block, when the top block and the abutting block move relatively, the first inclined surface and the second inclined surface slide, so that the abutting block drives the sliding rod to axially displace.