CN216732858U

CN216732858U - A push up subassembly to one side for moulding plastics precision mold

Info

Publication number: CN216732858U
Application number: CN202220220785.3U
Authority: CN
Inventors: 刘永宁; 骆秋波; 蒋光武
Original assignee: Shanghai Surini Precision Mould Co ltd
Current assignee: Shanghai Surini Precision Mould Co ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-06-14
Anticipated expiration: 2032-01-25

Abstract

The application relates to an inclined ejection assembly for an injection precision mold, which is arranged at an opening corresponding to a preset part of a product on the mold, wherein the direction of the opening is crossed with the mold opening direction of the mold; the inclined ejection assembly comprises an installation block fixedly connected to the die, a driving piece is fixedly connected to the installation block, the driving piece is in transmission connection with a wedge piece, a push rod used for extending into the opening is connected to the wedge surface of the wedge piece in a matched mode, and a forming block is fixedly connected to the end portion, extending into the opening, of the push rod; when the wedge piece is close to the opening, the forming block enters the opening, and when the wedge piece is far away from the opening, the forming block moves out of the opening; this application has the position that lets spare part on the mould and product noninterference, has improved the effect of product yields.

Description

A push up subassembly to one side for moulding plastics precision mold

Technical Field

The application relates to the field of injection molds, in particular to an inclined top assembly for an injection precision mold.

Background

The mould is a mould and a tool for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production, and is a tool for manufacturing formed articles. An injection mold is a widely used mold, and has many parts to form a desired product.

The common injection mold is provided with an upper mold and a lower mold which can be closed and opened, an injection molding cavity is formed between the upper mold and the lower mold, a product is molded in the injection molding cavity, and the upper mold and the lower mold are separated after the product is molded so as to take out the product.

The existing mold needs to be designed, after a product is molded, when the upper mold, the lower mold and the mold are separated, parts on the mold cannot interfere with the position of the product, especially when the shape of the position of the product is nonstandard and is not suitable for the moving direction of the mold, if the parts on the mold interfere with the position of the product, the parts can damage the product during mold separation, and the yield of the product is influenced.

SUMMERY OF THE UTILITY MODEL

In order to enable parts on a mold not to interfere with the part of a product when the shape of the part of the product is nonstandard and is not suitable for the moving direction of the mold, the application provides an inclined top assembly for an injection molding precision mold.

The application provides a push up subassembly to one side for moulding plastics precision mold adopts following technical scheme:

an inclined ejection assembly for an injection precision mold is arranged at an opening corresponding to a preset position of a product on the mold, and the direction of the opening is crossed with the mold opening direction of the mold; the inclined ejection assembly comprises an installation block fixedly connected to the die, a driving piece is fixedly connected to the installation block, a wedge-shaped piece is connected to the driving piece in a transmission mode, an ejector rod used for extending into the opening is connected to a wedge surface of the wedge-shaped piece in a matched mode, and a forming block is fixedly connected to the end portion, extending into the opening, of the ejector rod; when the wedge piece is close to the opening, the forming block enters the opening, and when the wedge piece is far away from the opening, the forming block moves out of the opening.

By adopting the technical scheme, before die assembly, the driving piece pushes the forming block at one end of the ejector rod into the opening through the wedge piece, and then die assembly is carried out, so that interference is avoided, and a product can be normally formed; after the product was moulded plastics, let the driving piece shift out the opening through the shaping piece of wedge piece with ejector pin one end, then the die sinking, take out the product at last, realized that the position shape of product is nonstandard and when not fitting with the direction of motion of mould, let spare part on the mould and the position noninterference of product, improved the yields of product.

Preferably, a first sliding groove is formed in the wedge-shaped surface, a first sliding block is fixedly connected to one end, matched with the wedge-shaped surface, of the ejector rod, and the first sliding block slides in the first sliding groove; the first sliding groove extends along the inclined direction of the wedge-shaped surface, and the position of the first sliding groove and the sliding path of the first sliding block are superposed on the sliding path of the ejector rod on the wedge-shaped surface;

or a first sliding groove is formed in one end, matched with the wedge-shaped surface, of the ejector rod, the wedge-shaped surface is fixedly connected with a first sliding block, and the first sliding block slides in the first sliding groove; the first sliding block extends along the inclined direction of the wedge-shaped surface, and the position and the sliding path of the first sliding block are superposed on the sliding path of the ejector rod on the wedge-shaped surface.

Through adopting above-mentioned technical scheme, first slider cooperatees with first spout, lets the ejector pin can slide on the wedge face steadily, can not produce the path deviation, also can not break away from each other.

Preferably, one end of the ejector rod matched with the wedge-shaped surface is fixedly connected with an abutting block abutting against the wedge-shaped surface.

Through adopting above-mentioned technical scheme, the butt piece can reduce the wearing and tearing that the ejector pin tip received, but the change alone after the butt piece wearing and tearing.

Preferably, a transfer block is fixedly connected to one end, close to the driving piece, of the wedge, and one end, far away from the wedge, of the transfer block is detachably connected to the driving end of the driving piece.

Through adopting above-mentioned technical scheme, the switching piece can be dismantled with the drive end and be connected, conveniently changes the driving piece, the maintenance of the mould of being convenient for.

Preferably, a second sliding groove is formed in the transfer block, a second sliding block is fixedly connected to the driving end, the second sliding block slides in the second sliding groove, and the sliding direction of the second sliding block is different from the moving direction of the transfer block;

or a second sliding groove is formed in the driving end, a second sliding block is fixedly connected to the transfer block, the second sliding block slides in the second sliding groove, and the sliding direction of the second sliding block is different from the moving direction of the transfer block.

Through adopting above-mentioned technical scheme, the size of the driving piece of different models is different, and the position of drive end is also different, and the second slider cooperatees with the second spout to let the switching piece can adapt to the driving piece of different models, thereby reduce the adaptation requirement to the driving piece.

Preferably, the mold is fixedly connected with a first guide sleeve sleeved with the ejector rod at the opening, and the inner peripheral wall of the first guide sleeve is attached to the outer peripheral wall of the ejector rod.

Through adopting above-mentioned technical scheme, the gesture of ejector pin can be injectd to first uide bushing, avoids the gesture of ejector pin to change and influence the yields of product.

Preferably, the mounting block is fixedly connected with a second guide sleeve sleeved with the transfer block, and the inner peripheral wall of the second guide sleeve is attached to the outer peripheral wall of the transfer block.

Through adopting above-mentioned technical scheme, the gesture of switching piece can be injectd to the second uide bushing, avoids the gesture of switching piece to change and influence its drive function to prevent further influence the yields of product.

Preferably, a limiting block for limiting the sliding path of the adapter block is fixedly connected in the second guide sleeve.

Through adopting above-mentioned technical scheme, the gesture of adapter piece can be injectd to the stopper, avoids the stroke of adapter piece to produce the deviation with predetermineeing the stroke and influence its drive function, does benefit to the position that prevents the shaping piece on the ejector pin in the chamber of moulding plastics and takes place the skew to do benefit to the yields of guaranteeing the product.

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

the method comprises the following steps that an ejector rod capable of stretching into an opening, a wedge piece for driving the ejector rod and a driving piece are arranged at the opening of a mold, the driving piece is enabled to push a forming block at one end of the ejector rod into the opening through the wedge piece before mold closing is carried out, then mold closing is carried out, after a product is subjected to injection molding, the driving piece is enabled to move the forming block at one end of the ejector rod out of the opening through the wedge piece, then mold opening is carried out, and finally the product is taken out, so that interference cannot be generated, and the product can be normally formed;

the first sliding block and the first sliding groove are arranged, and the ejector rod works more stably after the first sliding block and the first sliding groove are matched;

through setting up second slider and second and spout, let the adaptation of transfer block to the driving piece of different models stronger after both cooperations.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of an embodiment of the present application;

FIG. 3 is a schematic vertical sectional view showing the connection relationship among the driving member, the adapter block, the wedge member and the ejector rod according to the embodiment of the present application.

Reference numerals: 1. an opening; 2. mounting blocks; 3. a drive member; 31. a driving end; 32. a second slider; 4. a transfer block; 41. a second chute; 5. a wedge; 50. a wedge-shaped surface; 51. a first chute; 6. a top rod; 61. a first slider; 62. a butting block; 7. forming a block; 8. a first guide sleeve; 9. a second guide sleeve; 91. and a limiting block.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a lifter assembly for an injection molding precision mold. Referring to fig. 1 and 2, a lifter assembly for an injection molding precision mold for molding a plastic product that generates interference using a general mold. An opening 1 is formed in a position where the mold interferes with a product, the opening 1 is arranged on the mold corresponding to a preset position of the product, and the direction of the opening 1 is crossed with the mold opening direction of the mold. As shown in fig. 1 and 3, the lifter assembly includes a mounting block 2, a driving member 3, an adapter block 4, a wedge 5, a lifter 6, and a forming block 7. The mounting block 2 is welded or fixedly connected to the mold through bolts and is located on the same moving part of the mold as the opening 1. The driving member 3 can be an air cylinder or an electric cylinder, the driving member 3 can be fixedly connected to the mounting block 2 through bolts, and the driving end 31 of the driving member 3 extends towards the direction of the opening 1. The driving end 31 is provided with a transfer block 4 through a bolt, one end of the transfer block 4 far away from the driving end 31 is fixedly connected with the wedge 5 through a bolt, and the driving end 31 pushes the transfer block 4 and the wedge 5. The wedge 5 has a wedge surface 50, the wedge surface 50 is connected with the ejector rod 6 in a matching way, and one end of the ejector rod 6 far away from the wedge surface 50 is fixedly connected with the forming block 7 through a bolt and can extend into the opening 1. When the wedge 5 is close to the opening 1, the forming block 7 enters the opening 1, and when the wedge 5 is far away from the opening 1, the forming block 7 moves out of the opening 1.

In order to make the posture of the ejector rod 6 at the opening 1 more stable, the die is fixedly connected with a first guide sleeve 8 at the opening 1 through a bolt, the shape of the first guide sleeve 8 is matched with that of the ejector rod 6 and is sleeved at the middle part of the ejector rod 6, the ejector rod 6 slides in the first guide sleeve 8, and the inner peripheral wall of the first guide sleeve 8 is attached to the outer peripheral wall of the ejector rod 6. Because the ejector rod 6 slides on the wedge-shaped surface 50, the stroke of the ejector rod 6 is not long, and the position of the ejector rod 6 does not need to be limited. In a similar way, the mounting block 2 is fixedly connected with a second guide sleeve 9 through a bolt, the shape of the second guide sleeve 9 is matched with the shape of the switching block 4 and is sleeved at the middle part of the switching block 4, and the inner peripheral wall of the second guide sleeve 9 is attached to the outer peripheral wall of the switching block 4. The stroke of the transfer block 4 is much longer than that of the mandril 6, and the position of the transfer block 4 needs to be limited, therefore, a limiting block 91 is integrally arranged in the second guide sleeve 9 or fixedly connected with the second guide sleeve 9 through a bolt, and the limiting block 91 limits the sliding path of the transfer block 4 in the second guide sleeve 9. The posture of ejector pin 6 can be injectd to first uide bushing 8, avoids the posture change of ejector pin 6, and the posture of switching piece 4 can be injectd to second uide bushing 9, avoids the posture change of switching piece 4 and influences its drive function, and first uide bushing 8 combines together with second uide bushing 9 and can improve the yields of product.

In order to make the matching relationship between the push rod 6 and the wedge-shaped surface 50 more stable, a first sliding groove 51 is formed on the wedge-shaped surface 50, and the first sliding groove 51 extends along the inclined direction of the wedge-shaped surface 50. The ejector rod 6 and the matched end of the wedge-shaped surface 50 are integrally arranged or fixedly connected with a first sliding block 61 through a bolt, and the first sliding block 61 and the first sliding groove 51 are in a matching relation and slide in the first sliding groove 51. The position of the first sliding groove 51 and the sliding path of the first slider 61 are overlapped with the sliding path of the push rod 6 on the wedge-shaped surface 50, and the push rod 6 can stably slide on the wedge-shaped surface 50 without generating path deviation and separation. In other embodiments, a first sliding groove 51 may be formed at one end of the push rod 6 engaged with the wedge-shaped surface 50, and a first sliding block 61 is integrally disposed on the wedge-shaped surface 50 or fixedly connected to the wedge-shaped surface by a bolt, and the first sliding block 61 extends along an oblique direction of the wedge-shaped surface 50. The first slide block 61 slides in the first slide slot 51, and the position and the sliding path of the first slide block 61 are overlapped with the sliding path of the push rod 6 on the wedge-shaped surface 50.

Simultaneously, ejector pin 6 can weld or through the butt piece 62 that bolt fixedly connected with wear-resistant material made with wedge 50 complex one end, and the butt of butt piece 62 can reduce the wearing and tearing that the ejector pin 6 tip received on wedge 50, improves the life of ejector pin 6 and also can change butt piece 62 alone after butt piece 62 wears out.

One end of the switching block 4, which is far away from the wedge 5, is detachably connected with the driving end 31 of the driving piece 3, the switching block 4 is provided with a second sliding chute 41, and the driving end 31 is welded or fixedly connected with a second sliding block 32 through a bolt. The second sliding block 32 slides in the second sliding slot 41, the sliding direction of the second sliding block 32 is different from the moving direction of the switching block 4, and if the sliding direction of the second sliding block 32 is the same as the moving direction of the switching block 4, the switching block 4 cannot work normally. The size of the driving piece 3 of different models is different, and the position of drive end 31 is also different, and second slider 32 cooperatees with second spout 41 to let switching piece 4 can adapt to different models driving piece 3 that drive end 31 position is different promptly, thereby reduce the adaptation requirement of mould to driving piece 3. In other embodiments, the driving end 31 is provided with a second sliding slot 41, the adapter block 4 is integrally disposed or fixedly connected with a second sliding block 32 through a bolt, the second sliding block 32 slides in the sliding slot, and the sliding direction of the second sliding block 32 is different from the moving direction of the adapter block 4.

The implementation principle of the pitched roof assembly for the injection molding precision mold is as follows: before the compound die, operation driving piece 3 lets driving piece 3 promote wedge piece 5 through adapter block 4, and the wedge piece 5 removes the back and can push up 6 one end of ejector pin and the shaping piece 7 on the wedge face 50 into opening 1 in, then compound die again to can not produce the interference, let the product can normally the shaping. After the product is molded by injection and cooled, the driving part 3 is operated, the driving part 3 pulls back the wedge part 5 through the transfer block 4, the wedge part 5 pulls back the ejector rod 6 and the forming block 7 to move the ejector rod out of the opening 1, then the mold is opened to take out the product, when the shape of the part of the product is nonstandard and is not matched with the movement direction of the mold, the part on the mold is not interfered with the part of the product, and the yield of the product is improved.

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

1. An inclined top assembly for an injection precision mold is arranged at an opening (1) corresponding to a preset part of a product on the mold, and the direction of the opening (1) is crossed with the mold opening direction of the mold; the method is characterized in that: the inclined ejection assembly comprises an installation block (2) fixedly connected to the die, a driving piece (3) is fixedly connected to the installation block (2), a wedge-shaped piece (5) is connected to the driving piece (3) in a transmission mode, an ejector rod (6) used for extending into the opening (1) is connected to a wedge surface (50) of the wedge-shaped piece (5) in a matching mode, and a forming block (7) is fixedly connected to the end portion, extending into the opening (1), of the ejector rod (6); when the wedge piece (5) is close to the opening (1), the forming block (7) enters the opening (1), and when the wedge piece (5) is far away from the opening (1), the forming block (7) moves out of the opening (1).

2. The angle lifter assembly for an injection precision mold of claim 1, wherein: a first sliding groove (51) is formed in the wedge-shaped surface (50), a first sliding block (61) is fixedly connected to one end, matched with the wedge-shaped surface (50), of the ejector rod (6), and the first sliding block (61) slides in the first sliding groove (51); the first sliding groove (51) extends along the inclined direction of the wedge-shaped surface (50), and the position of the first sliding groove (51) and the sliding path of the first sliding block (61) are superposed with the sliding path of the ejector rod (6) on the wedge-shaped surface (50);

or a first sliding groove (51) is formed in one end, matched with the wedge-shaped surface (50), of the ejector rod (6), the wedge-shaped surface (50) is fixedly connected with a first sliding block (61), and the first sliding block (61) slides in the first sliding groove (51); the first sliding block (61) extends along the inclined direction of the wedge-shaped surface (50), and the position and the sliding path of the first sliding block (61) are overlapped with the sliding path of the ejector rod (6) on the wedge-shaped surface (50).

3. The lifter assembly for injection molding precision molds of claim 1, wherein: and one end of the ejector rod (6) matched with the wedge-shaped surface (50) is fixedly connected with an abutting block (62) abutted against the wedge-shaped surface (50).

4. The lifter assembly for injection molding precision molds of claim 1, wherein: wedge piece (5) be close to with one end fixedly connected with switching piece (4) of driving piece (3), switching piece (4) keep away from the one end of wedge piece (5) with drive end (31) detachable connection of driving piece (3).

5. The lifter assembly for injection molding precision molds of claim 4, wherein: a second sliding groove (41) is formed in the transfer block (4), the driving end (31) is fixedly connected with a second sliding block (32), the second sliding block (32) slides in the second sliding groove (41), and the sliding direction of the second sliding block (32) is different from the moving direction of the transfer block (4);

or a second sliding groove (41) is formed in the driving end (31), a second sliding block (32) is fixedly connected to the transfer block (4), the second sliding block (32) slides in the second sliding groove (41), and the sliding direction of the second sliding block (32) is different from the moving direction of the transfer block (4).

6. The angle lifter assembly for an injection precision mold of claim 1, wherein: the mould is in opening (1) department fixedly connected with cup joints first uide bushing (8) of ejector pin (6), the internal perisporium of first uide bushing (8) with the laminating of the outer peripheral wall of ejector pin (6) is mutually.

7. The angle lifter assembly for an injection precision mold of claim 4, wherein: fixedly connected with cup joints on installation piece (2) second uide bushing (9) of commentaries on classics piece (4), the internal perisporium of second uide bushing (9) with the laminating of the outer peripheral wall of commentaries on classics piece (4) mutually.

8. The lifter assembly for injection molding precision molds of claim 7, wherein: and a limiting block (91) for limiting the sliding path of the transfer block (4) is fixedly connected in the second guide sleeve (9).