CN216705858U - Press shell class mould - Google Patents

Abstract

The application relates to the field of metal mold casting molds and discloses a shell pressing mold, which comprises a lower mold and an upper mold, wherein a lower mold cavity is formed in the lower mold, an upper mold cavity is formed in the upper mold, the lower mold cavity is communicated with the upper mold cavity during mold closing, a plurality of sliding holes are formed in the lower mold, a reset rod is arranged in each sliding hole in a sliding manner, and a plurality of ejector rods are arranged on the lower mold in a penetrating manner; the fixed setting of lower mould is on the chassis that is located self bottom, and the chassis is inside to be provided with the board that resets, and the fixed a plurality of reset spring that set up between board and the lower mould that resets, the release link wear to establish the chassis and with the board fixed connection that resets, the ejector pin wear to establish the chassis and with the board fixed connection that resets, its characterized in that: and a lower positioning plane is arranged on one side of the lower die close to the upper die, an upper positioning plane is arranged on one side of the upper die close to the lower die, the lower positioning plane is attached to the upper positioning plane during die assembly, and the slide hole is formed in the lower positioning plane. The application has the effect of reducing the flash after the molding of the shell pressing type part.

Description

Press shell class mould

Technical Field

The application relates to the field of metal mold casting molds, in particular to a shell pressing mold.

Background

The casting molding is also called as casting, and is to inject prepared casting raw materials into a mold to solidify the raw materials so as to obtain a product similar to a mold cavity.

The product of casting need utilize the ejector pin after the shaping ejecting with the product, in order to continue the casting after the drawing of patterns, the ejector pin must get back to the primary importance, for this reason the mould need set up resetting means, generally utilize and reset through spring coupling's push pedal between the cover half, nevertheless in large-scale mould, because the elasticity of spring can't push back the push pedal and reset, can set up the release link this moment on the push pedal, release link and ejector pin parallel arrangement utilize the movable mould to promote the release link and slide when the compound die, make the push pedal reset together with the ejector pin in step.

The existing shell pressing type casting die comprises a lower die 1 and an upper die 2, wherein a plurality of sliding holes 12 are formed in the lower die 1, a reset rod 3 is arranged in each sliding hole 12 in a sliding mode, and part of the sliding holes 12 are located on a parting surface. When the die is closed, the upper die 2 pushes the reset rod 3 to slide and reset.

The release link need reset to the top and flush with the die joint, just can guarantee that the die joint of lower mould and the die joint of last mould closely laminate, and the die joint of general pressure shell class is inclined plane or curved surface, and the shape structure will be done along with according to the curved surface shape of die joint on consequently the top of release link.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: in the actual production process, the die joint of going up the mould is contradicted with the release link top, because the release link top is the curved surface, then can lead to self atress uneven, long-time back of using, the edge on release link top produces wearing and tearing and warp easily, the position that the release link warp simultaneously can receive the inside high temperature influence of mould to produce and rise greatly, and protrusion release link body outside, lead to inside the release link can't return to the slide opening, there is the clearance between the die joint of mould and the die joint of last mould behind the messenger's compound die, it is big to make final fashioned product overlap, need reprocess and just can reach the required quality.

SUMMERY OF THE UTILITY MODEL

In order to reduce the overlap of pressing shell class part shaping back, this application provides a pressure shell class mould.

The application provides a pressure shell class mould adopts following technical scheme:

a shell pressing die comprises a lower die and an upper die, wherein a lower die cavity is formed in the lower die, an upper die cavity is formed in the upper die, the lower die cavity is communicated with the upper die cavity during die assembly, a plurality of sliding holes are formed in the lower die, a reset rod is arranged in each sliding hole in a sliding mode, and a plurality of ejector rods penetrate through the lower die;

the lower mould is fixed to be set up on the chassis that is located self bottom, the inside board that resets that is provided with of chassis, reset the board with fixed a plurality of reset spring that set up between the chassis, the release link wear to establish the chassis and with reset board fixed connection, the ejector pin wear to establish the chassis and with reset board fixed connection, the lower mould is close to one side of going up the mould sets up down the locating plane, it is close to go up the mould one side of lower mould sets up locating plane, during the compound die, down the locating plane with go up the laminating of locating plane, the slide opening is seted up down on the locating plane.

Through adopting above-mentioned technical scheme, set up the slide opening on locating plane down, locating plane and last locating plane laminating down during the compound die, the release link top changes the plane into from original curved surface, the contact surface of lower mould and last mould is bigger more balanced, go up locating plane and the horizontal top direct contact of release link, the release link atress is more even, be difficult to cause edge wear and deformation, thereby it produces the rise to reduce the position that the release link warp to receive high temperature to influence, the outside possibility of protrusion release link body, make the release link normally reset, finally reduce the overlap of shaping product, need not reprocess.

Optionally, the top end of the reset rod is arranged in a circular truncated cone shape.

Through adopting above-mentioned technical scheme, be the round platform setting with the top of release link, reduce the top edge of release link and produce the possibility of the protruding body behind the deformation.

Optionally, a plurality of guide posts are further arranged on the lower positioning plane, the guide posts are vertically arranged, guide holes are formed in the upper positioning plane, and the guide posts are in insertion fit with the guide holes.

Through adopting above-mentioned technical scheme, utilize the grafting cooperation of guide post and guiding hole when the compound die, make lower mould and last mould compound die more accurate, help promoting the quality of product.

Optionally, one of the guide posts is fixedly connected with a positioning block, the side wall of the guide hole is provided with the positioning groove, and the positioning block is in plug-in fit with the positioning groove.

Through adopting above-mentioned technical scheme, utilize the locating piece to go up the mould further location, make lower mould and last mould compound die more accurate.

Optionally, the positioning block is arranged in a square shape.

Through adopting above-mentioned technical scheme, utilize square locating piece can strengthen the location effect to last mould, lower mould and last mould cooperation are more stable when making the compound die.

Optionally, every the reset spring is equipped with the telescopic link in all wearing to be equipped with, the top of telescopic link with chassis fixed connection, the telescopic link bottom with reset board fixed connection.

Through adopting above-mentioned technical scheme, the telescopic link plays direction and spacing effect to the slip of release plate, produces the possibility of skew when reducing the release link and sliding.

Optionally, the telescopic link bottom is worn to establish the board that resets to be provided with the spacing head, the spacing head with the board that resets is contradicted.

Through adopting above-mentioned technical scheme, utilize spacing head to play spacing effect to the board that resets, make the board that resets difficult the breaking away from chassis.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the slide hole is arranged on the lower positioning plane, the lower positioning plane is attached to the upper positioning plane during die assembly, the top end of the reset rod is changed into a plane from the original curved surface, the contact surface of the lower die and the upper die is larger and more balanced, the upper positioning plane is directly contacted with the horizontal top end of the reset rod, the stress of the reset rod is more uniform, and the edge abrasion and deformation are not easily caused, so that the possibility that the deformation position of the reset rod is expanded due to the influence of high temperature and protrudes out of the reset rod body is reduced, the reset rod is enabled to normally reset, the flash of a formed product is finally reduced, and reprocessing is not needed;

2. the top end of the reset rod is arranged in a circular truncated cone shape, so that the possibility that the edge of the top end of the reset rod protrudes out of the body after deformation is generated is reduced;

3. the guide post is matched with the guide hole in an inserting mode when the die is closed, so that the lower die and the upper die are closed more accurately, and the quality of a product is improved.

Drawings

Fig. 1 is an exploded view of a shell-in-shell casting mold according to the background of the present application.

Fig. 2 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 3 is an exploded view of an embodiment of the present application showing the position of the reset lever.

Fig. 4 is an exploded view of the position of the upper mold cavity in an embodiment of the present application.

Description of reference numerals:

1. a lower die; 11. a lower die cavity; 12. a slide hole; 13. a lower positioning plane; 2. an upper die; 21. an upper mold cavity; 22. an upper positioning plane; 23. a guide hole; 231. positioning a groove; 3. a reset lever; 4. a chassis; 5. a reset plate; 52. a telescopic rod; 51. a return spring; 6. a top rod; 7. a guide post; 71. and (5) positioning the blocks.

Detailed Description

The present application is described in further detail below with reference to figures 2-4.

The embodiment of the application discloses a pressure shell type mould. Referring to fig. 2, 3 and 4, the press shell type mold comprises a lower mold 1 and an upper mold 2, wherein the bottom of the lower mold 1 is provided with a bottom frame 4, the lower mold 1 is fixedly connected with the bottom frame 4, a lower mold cavity 11 is arranged on the top surface of the lower mold 1, an upper mold cavity 21 is arranged on the bottom surface of the upper mold 2, and the lower mold cavity 11 and the upper mold cavity 21 are matched to form a mold cavity during mold closing.

Referring to fig. 2 and 3, two lower positioning planes 13 are arranged on the lower die 1, two sliding holes 12 are formed in each lower positioning plane 13, each sliding hole 12 penetrates through the lower die 1, a reset rod 3 is arranged in each sliding hole 12 in a sliding mode, the reset rods 3 are vertically arranged, the reset rods 3 slide in the vertical direction, and the top end of each reset rod 3 is in a circular truncated cone arrangement. A plurality of ejector rods 6 are slidably arranged on the lower die 1 in a penetrating way, and the ejector rods 6 are parallel to the reset rod 3.

Referring to fig. 3 and 4, the upper mold 2 is provided with two upper positioning planes 22, and the lower positioning plane 13 is attached to the upper positioning planes 22 when the molds are closed.

Referring to fig. 2 and 3, the inside level of chassis 4 is provided with the board 5 that resets, and slide on the board 5 that resets and wear to be equipped with a plurality of telescopic links 52, and four are taken as the example in this embodiment, and the top and the chassis 4 fixed connection of telescopic link 52, the board 5 that resets is worn to establish in the telescopic link 52 bottom to fixed being provided with spacing head 521, spacing head 521 contradicts with the board 5 that resets. The outside of each telescopic rod 52 is sleeved with a return spring 51, one end of each return spring 51 is fixedly connected with the underframe 4, and the other end of each return spring 51 is fixedly connected with the return plate 5. The bottom end of the reset rod 3 penetrates through the chassis 4 in a sliding manner and is fixedly connected with the reset plate 5.

Referring to fig. 2 and 3, when the mold is used, the chassis 4 is fixedly mounted on external equipment, the external equipment applies a pushing force towards the upper mold 2 to the reset plate 5 during demolding, the ejector rod 6 is used for ejecting a product, then the pushing force applied to the reset plate 5 is released, mold closing is performed again, the reset rod 3 is reset in the mold closing process, the upper mold 2 and the lower mold 1 are continuously pressed, and then casting is performed.

Referring to fig. 3, the slide hole 12 is formed on the lower positioning plane 13, the top end of the reset rod 3 is a plane, the reset rod 3 is not easy to wear and deform during mold closing, and the reset rod 3 can be normally reset, so that the possibility of generating a gap between the parting surface of the lower mold 1 and the parting surface of the upper mold 2 is reduced, and the flash of a product is reduced.

Referring to fig. 3 and 4, in order to further improve the mold clamping accuracy, a plurality of guide posts 7 are further disposed on the lower positioning plane 13, two guide posts 7 are disposed along a diagonal line of the lower mold 1 in this embodiment, the guide posts 7 are disposed vertically, a positioning block 71 is fixedly disposed on one of the guide posts 7, and the positioning block 71 is a square block. A guide hole 23 is formed in the upper positioning plane 22, and the guide column 7 is in inserted fit with the guide hole 23. The side wall of the guide hole 23 close to the positioning block 71 is provided with a positioning groove 231, and the positioning block 71 is in inserted fit with the positioning groove 231.

The implementation principle of the shell pressing mold in the embodiment of the application is as follows: when the device is used, the underframe 4 is fixedly installed on external equipment, the upper die 2 is installed on another driving device, thrust is applied to the reset plate 5 by the external equipment after demolding, the reset plate 5 drives the ejector rod 6 to slide, a product is ejected out, the force application to the reset plate 5 is removed during die assembly, the upper die 2 is driven to slide towards the lower die 1, the upper die 2 is pushed, the reset spring 51 is under the action of self elasticity, the lower reset rod 3 is reset, and then pouring is carried out.

Adjusting the slide opening 12 that will originally offer on the die joint to the lower locating plane 13 of keeping away from the die joint, changing the 3 tops of release link into the plane, making 3 tops of release link difficult wearing and tearing and warp, the position that reduces 3 deformations of release link receives high temperature to influence and produces the rise, and the outside possibility of protrusion release link 3 body finally makes release link 3 change and resets, and the die joint of lower mould 1 and the die joint of last mould 2 hug closely more, reduce the overlap of product.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (7)

1. A shell pressing die comprises a lower die (1) and an upper die (2), wherein a lower die cavity (11) is formed in the lower die (1), an upper die cavity (21) is formed in the upper die (2), the lower die cavity (11) is communicated with the upper die cavity (21) during die assembly, a plurality of sliding holes (12) are formed in the lower die (1), a reset rod (3) is arranged in each sliding hole (12) in a sliding mode, and a plurality of ejector rods (6) penetrate through the lower die (1);

lower mould (1) is fixed to be set up on chassis (4) that are located self bottom, chassis (4) inside is provided with board (5) that resets, reset board (5) with fixedly set up a plurality of reset spring (51) between chassis (4), release link (3) are worn to establish chassis (4) and with reset board (5) fixed connection, ejector pin (6) are worn to establish chassis (4) and with reset board (5) fixed connection, its characterized in that: one side, close to the upper die (2), of the lower die (1) is provided with a lower positioning plane (13), one side, close to the lower die (1), of the upper die (2) is provided with an upper positioning plane (22), the lower positioning plane (13) is attached to the upper positioning plane (22) during die assembly, and the sliding hole (12) is formed in the lower positioning plane (13).

2. A press shell mould as claimed in claim 1, characterised in that: the top end of the reset rod (3) is arranged in a round table shape.

3. A press shell mould as claimed in claim 1, characterised in that: still be provided with a plurality of guide posts (7) on lower locating plane (13), guide post (7) vertical setting, go up locating plane (22) and seted up guiding hole (23), guide post (7) with guiding hole (23) are pegged graft and are cooperated.

4. A press shell mould as claimed in claim 3, wherein: one of them fixedly connected with locating piece (71) on guide post (7), be provided with constant head tank (231) on the lateral wall of guiding hole (23), locating piece (71) with constant head tank (231) grafting cooperation.

5. A press shell mould as claimed in claim 4, wherein: the positioning blocks (71) are arranged in a square shape.

6. A press shell mould as claimed in claim 1, characterised in that: every all wear to be equipped with telescopic link (52) in reset spring (51), the top of telescopic link (52) with chassis (4) fixed connection, telescopic link (52) bottom with reset plate (5) fixed connection.

7. A press shell mould as claimed in claim 6, wherein: the bottom end of the telescopic rod (52) penetrates through the reset plate (5) and is provided with a limiting head (521), and the limiting head (521) is abutted to the reset plate (5).

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