CN210047016U - Tertiary line position demolding structure of injection mold - Google Patents

Abstract

The utility model provides a three-level row position ejection structure of an injection mould, which comprises a first row position insert slidably mounted on a rear mold, an oblique guide column fixed on the front mold, a second row position insert, a third row position insert, There are three rows of inserts and a fourth row of inserts; the first row of inserts is slidably installed with a first slide, and the first slide is slidably installed with a second slide; the first row of inserts and the second The row position inserts are fixedly connected, the first slide piece is fixedly connected with the third row position insert piece, the second slide piece is fixedly connected with the fourth row position insert piece; The first sliding piece is provided with a hollow slot matched with the inclined guide post, and an oil cylinder for driving the sliding of the first row inserting piece is installed on the rear die. The utility model provides a three-level row position ejection structure of an injection mold, which overcomes the defects that the existing mold opening structure is not suitable for plastic products with complex structures, is difficult to open the mold, and is prone to produce defective products.

Description

A three-level row position ejection structure of an injection mold

technical field

The utility model relates to the field of injection moulds, in particular to a three-stage row position ejection structure of the injection mould.

Background technique

Injection mold is a tool for producing plastic products; it is also a tool for giving plastic products complete structure and precise dimensions. Injection molding is a processing method used in mass production of some complex shapes. Specifically, it refers to the injection of heated and melted plastic into the cavity of the injection molding machine at high pressure, and after cooling and solidification, the molded product is obtained. The injection mold mainly includes a fixed mold and a movable mold. The fixed mold is installed on the fixed seat plate of the injection molding machine, and the movable mold is installed on the movable seat plate of the injection molding machine. During injection molding, the fixed and movable molds are closed, and the plastic enters the mold cavity through the nozzle. When the mold is opened, the fixed and movable molds are separated, and then the ejection mechanism moves to eject the injection molded parts.

In injection molds, for plastic products with relatively simple shapes, generally only one mold opening is needed to remove the molded plastic products from the mold, while for plastic products with more complex structure or larger body, one time The method of opening the mold cannot make the complex parts of the plastic product demold smoothly. If the mold is forcibly opened, the complex parts or appearance of the plastic product will be damaged or damaged, resulting in defective products, reducing the productivity and increasing the manufacturing cost. Therefore, for a plastic product with a relatively complex structure or a relatively large body, the existing mold opening method cannot be used to open the mold when the mold is opened.

Utility model content

(1) The technical problem to be solved.

The problem to be solved by the utility model is to provide a three-level row ejection structure of an injection mold, so as to overcome the defects that the existing mold opening structure is not suitable for plastic products with complex structure, difficult to open the mold, and easy to produce defective products.

(2) Technical solutions.

In order to solve the above-mentioned technical problem, the present utility model provides a three-level row position ejection structure of an injection mould, which includes a first row position insert slidably installed on the rear mold, an inclined guide column fixed on the front mold, and a second row position insert. A row insert, a third row insert and a fourth row insert; a first slide is slidably installed on the first row insert, and a second slide is slidably installed on the first slide ; The first row insert is fixedly connected with the second row insert, the first slide is fixedly connected with the third row insert, and the second slide is fixed with the fourth The row inserts are fixedly connected; the oblique guide posts pass through the first slider and the second slider in sequence, and the ends of the oblique guide posts are placed in the grooves of the first row inserts Inside, the first sliding piece is provided with an escape groove that cooperates with the inclined guide post, and an oil cylinder for driving the sliding of the first row insert is installed on the rear mold; when the mold is opened, the The inclined guide column drives the second sliding piece to slide, and after the second sliding piece slides for a certain distance, the inclined guide column drives the first sliding piece to slide, and the second sliding piece stops sliding after it leaves the glue level. The oil cylinder drives the first row insert to slide until it leaves the glue level.

With such a structure, through the cooperation of the first row insert, the first slide, the second slide and the inclined guide post, when the mold is opened, the inclined guide post can first drive the second slide to slide, because the first slide There is a hollow slot matched with the inclined guide post. After the second slide piece slides for a certain distance, the inclined guide post drives the first slide piece to slide, and then the first row insert slides until it is separated from the glue position. Three-stage demoulding is suitable for injection molded parts with complex structure, which makes product demolding more convenient, ensures demolding quality, helps to improve product qualification rate and saves manufacturing costs.

Further, an oil cylinder seat is fixed on the rear mold, the oil cylinder is fixed on the oil cylinder seat, the piston rod of the oil cylinder is fixedly connected with the T-shaped connecting block, and the first row insert is provided with the The T-shaped connecting block is matched with the first T-shaped groove.

Further, a first limit block is symmetrically installed on the rear mold, and first limit protrusions matched with the first limit block are symmetrically arranged at both ends of the first position insert; The rear mold is provided with a guide block at the bottom of the first row insert, and the first row insert is provided with a guide groove matched with the guide block.

Further, a second limit block is symmetrically fixed on the first position insert, and second limit protrusions matched with the second limit block are symmetrically arranged at both ends of the first sliding piece.

Further, the overall outline of the second sliding member is T-shaped, and the first sliding member is provided with a second T-shaped groove matched with the T-shaped second sliding member.

Further, L-shaped grooves are respectively provided in the interior of the first sliding piece and the end of the second sliding piece, and the third row position insert and the fourth row position insert are respectively provided with and The L-shaped grooves are matched with the L-shaped protrusions.

Further, a bevel seat is fixed on the front mold, and the bevel guide column is fixed on the bevel seat.

Further, a third limit block is installed on the first row position insert, and a limit groove matched with the third limit block is arranged at the bottom of the second slider; the second slider When leaving the glue position, the third limiting block abuts against the second sliding member.

Further, a fourth limit block for limiting the first sliding member is symmetrically installed on the first row insert; when the first sliding member is released from the glue position, the fourth limit block touches the against the first slide.

Further, a wear-resistant block is installed on the upper end of the middle part of the first row insert.

(3) Beneficial effects.

The utility model provides a three-level row position ejection structure of an injection mould, which has simple structure and convenient installation; The three-stage demolding is suitable for injection molding parts with complex structures, which makes the product demolding more convenient, ensures the demolding quality, helps to improve the qualified rate of the product, and saves the manufacturing cost; Plastic products with complex structures are not easy to open molds, and are prone to defects in defective products.

Description of drawings

FIG. 1 is a perspective view of a three-level row position ejection structure of an injection mold of the present invention.

FIG. 2 is a cross-sectional view of a three-level row position ejection structure of an injection mold of the present invention, cut along A-A.

FIG. 3 is an enlarged view of part I of FIG. 2 .

FIG. 4 is a perspective view of a three-level row position ejection structure of an injection mold of the present invention after half-section.

FIG. 5 is an exploded view of a three-stage row position ejection structure of an injection mold of the present invention.

The corresponding part names of the respective reference numbers in the figure are: 1. Back mold; 2. First row insert; 3. Front mold; 4. Oblique guide column; 5. First sliding piece; 7. Inserts in the second row; 8. Inserts in the third row; 9. Inserts in the fourth row; 10. Oil cylinder seat; 11. Oil cylinder; 12. T-shaped connecting block; 13. The first limit Position block; 14, guide block; 15, second limit block; 16, L-shaped groove; 17, L-shaped protrusion; 18, hypotenuse seat; 19, third limit block; 20, fourth limit block ;21, wear block; 201, the first T-shaped groove; 202, the first limit protrusion; 501, the avoidance groove; 502, the second limit protrusion; 503, the second T-shaped groove; bit slot.

Detailed ways

The specific embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

Referring to FIG. 1 to FIG. 5 , the present utility model provides a three-level row position ejection structure of an injection mold, including a first row position insert 2 slidably installed on the rear mold 1 , and an inclined guide column fixed on the front mold 3 . 4. The second row insert 7, the third row insert 8 and the fourth row insert 9; the first row insert 2 is slidably installed with a first slide 5, and the first slide 5 slides on it A second slide 6 is installed; the first row insert 2 is fixedly connected with the second row insert 7, the first slide 5 is fixedly connected with the third row insert 8, and the second slide 6 is fixed with the fourth The row inserts 9 are fixedly connected, and the first row inserts 2, the second row inserts 7, the third row inserts 8 and the fourth row inserts 9 are used to cooperate with the core to form products; The column 4 runs through the first sliding member 5 and the second sliding member 6 in turn. The first sliding member 5 and the second sliding member 6 are provided with inclined sliding grooves which are convenient for the oblique guide column 4 to pass through. There is a groove on it, the end of the oblique guide column 4 is placed in the groove of the first row insert 2, the first sliding member 5 is provided with a hollow groove 501 that cooperates with the oblique guide column 4, and the rear mold 1 There is an oil cylinder 11 for driving the first row insert 2 to slide; when the mold is opened, the inclined guide column 4 drives the second sliding piece 6 to slide, and after the second sliding piece 6 slides for a certain distance, the inclined guide column 4 drives the first sliding piece 6. The slider 5 slides, the second slider 6 stops sliding after it leaves the glue level, and the oil cylinder 11 drives the first row insert 2 to slide until it leaves the glue level.

Referring to FIGS. 3 to 5 , an oil cylinder seat 10 is fixed on the rear die 1 by bolts, and an oil cylinder 11 is fixed on the oil cylinder seat 10 by bolts. A through hole is provided for the piston rod to pass through, the piston rod of the oil cylinder 11 and the T-shaped connecting block 12 are fixedly connected by bolts, and the first row insert 2 is provided with a first T-shaped connecting block 12. Slot 201. In this way, the oil cylinder 11 is used to directly push the first row insert 2 to slide, which is beneficial to simplify the demolding structure.

Referring to FIGS. 4 and 5 , the rear mold 1 is symmetrically fixed with a first limit block 13 for limiting the first row insert 2 through bolts, and the first row insert 2 is symmetrically arranged with the first limit The first limit protrusion 202 matched with the position block 13; the rear mold 1 is provided with a guide block 14 at the bottom of the first row position insert 2, and the first row position insert 2 is provided with a guide block 14. With the matching guide groove, the first row insert 2 can slide on the guide block 14 . This method is beneficial to ensure the reliability of sliding of the first row insert 2 on the rear mold 1, and to ensure smooth demoulding.

Referring to FIG. 4 and FIG. 5 , the first row insert 2 is symmetrically fixed with a second limit block 15 for limiting the first slide 5 through bolts, and the two ends of the first slide 5 are symmetrically arranged with the second limit The second limiting protrusion 502 matched with the positioning block 15 . In this way, the reliability of the sliding of the first sliding member 5 on the first row insert 2 is ensured, and the demolding is ensured smoothly.

Referring to FIG. 4 and FIG. 5 , the overall outline of the second sliding member 6 is T-shaped, and the bottom of the first sliding member 5 is provided with a second T-shaped groove 503 that cooperates with the T-shaped second sliding member 6 . The first row of inserts 2 is in movable contact. In this way, the reliability of the sliding of the second sliding member 6 on the first sliding member 5 is ensured, and the demolding is ensured smoothly.

Referring to FIGS. 2 to 5 , L-shaped grooves 16 are respectively provided inside the first slider 5 and the end of the second slider 6 , and the third row insert 8 and the fourth row insert 9 are respectively provided with L-shaped grooves 16 . The L-shaped protrusions 17 matched with the L-shaped grooves 16, the third row insert 8 is fixed on the first slide 5 by bolts, and the fourth row insert 9 is fixed on the second slide 6 by bolts. Through the cooperation of the L-shaped protrusion 17 and the L-shaped groove 16, when the first sliding member 5 and the second sliding member slide, the shear force on the bolt can be reduced, the bolt can be prevented from being damaged, and the reliability of the overall structure can be ensured.

Referring to FIGS. 2 to 4 , a bevel seat 18 is fixed on the front mold 3 , and the bevel guide post 4 is fixed on the bevel seat 18 to facilitate installation and assembly.

Referring to FIGS. 3 to 5 , the first row insert 2 is fixed with a third limit block 19 by bolts, and the bottom of the second sliding piece 6 is provided with a limit groove 601 that cooperates with the third limit block 19 ; When the second sliding member 6 is released from the glue position, the third limiting block 19 abuts against the second sliding member 6 and restricts the sliding of the second sliding member 6 .

Referring to FIGS. 3 to 5 , the first row insert 2 is symmetrically fixed with a fourth limit block 20 for limiting the first slide 5 through bolts; when the first slide 5 is out of the glue position, the fourth limit The position block 20 abuts against the first sliding member 5 and restricts the sliding of the first sliding member 5 .

Referring to FIGS. 4 and 5 , a wear-resistant block 21 is installed on the upper end of the middle portion of the first row insert 2 . The provision of the wear-resistant block 21 can reduce the wear of the first row insert 2 and the second slide 6 and prolong the service life.

When the mold is opened, the upper mold 1 drives the oblique guide column 4 to move up, the oblique guide column 4 drives the second slider 6 to slide to open the mold, and the second slider 6 drives the fourth row insert 9 to slide. When the fourth row insert 9 is driven out of the glue position, the third limit block 19 abuts against the second sliding member 6, and the second sliding member 6 stops moving; After the second slider 6 slides for a certain distance, the inclined guide column 4 drives the first slider 5 to slide and open the mold, and the first slider 5 drives the third row insert 8 to slide. When the first slider 5 drives the third row When the position insert 8 leaves the glue position, the fourth limit block 20 abuts against the first slider 5, and the first slider 5 stops moving; then the oil cylinder 11 drives the first row of the position insert 2 to slide and open the mold, and the first row The position insert 2 drives the second row position insert 7 to leave the glue position, thereby completing the three demoulding of the row position.

This embodiment provides a three-level row position ejection structure of an injection mold, which is simple in structure and convenient in installation; The three-stage demolding is suitable for injection molding parts with complex structures, which makes the product demolding more convenient, ensures the demolding quality, helps to improve the qualified rate of the product, and saves the manufacturing cost; Plastic products with complex structures are not easy to open molds, and are prone to defects in defective products.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principles of the present invention, several improvements and modifications can be made. These improvements and retouching should also be regarded as the protection scope of the present invention.

Claims (10)

1. A three-level row position ejection structure of an injection mold, characterized in that it comprises a first row position insert (2) slidably installed on the rear mold (1), and an inclined guide fixed on the front mold (3) The column (4), the second row insert (7), the third row insert (8) and the fourth row insert (9); the first row insert (2) is slidably installed with A first sliding piece (5), a second sliding piece (6) is slidably mounted on the first sliding piece (5); the first row position insert (2) and the second row position insert ( 7) Fixed connection, the first slider (5) is fixedly connected to the third row insert (8), and the second slider (6) is connected to the fourth row insert (9) Fixed connection; the oblique guide post (4) passes through the first slider (5) and the second slider (6) in sequence, and the end of the oblique guide post (4) is placed on the first slide (5) and the second slide (6). In the groove of the row insert (2), the first sliding member (5) is provided with a hollow groove (501) that cooperates with the inclined guide column (4), and the rear mold (1) An oil cylinder (11) for driving the first row insert (2) to slide is installed thereon; when the mold is opened, the inclined guide column (4) drives the second sliding member (6) to slide, and the second sliding member (6) slides. After the second sliding member (6) slides for a certain distance, the inclined guide column (4) drives the first sliding member (5) to slide, the second sliding member (6) stops sliding after leaving the glue level, and the oil cylinder stops sliding. (11) Drive the first row position insert (2) to slide until it leaves the glue position. 2 . The three-stage row position ejection structure of an injection mold according to claim 1 , characterized in that: an oil cylinder seat ( 10 ) is fixed on the rear mold ( 1 ), and an oil cylinder seat ( 10 ) is fixed on the oil cylinder seat ( 10 ). In the oil cylinder (11), the piston rod of the oil cylinder (11) is fixedly connected with the T-shaped connecting block (12), and the first row insert (2) is provided with the T-shaped connecting block (12) The matching first T-shaped groove (201). 3. The three-level row position ejection structure of an injection mold according to claim 1, characterized in that: the rear mold (1) is symmetrically installed with a first limit block (13), and the first row position is inlaid on the back mold (1). The two ends of the component (2) are symmetrically provided with first limiting protrusions (202) matched with the first limiting blocks (13); A guide block (14) is installed at the bottom of (2), and a guide groove matched with the guide block (14) is provided on the first row insert (2). 4. The injection mold three-level row position ejection structure according to claim 1, characterized in that: the first row position insert (2) is symmetrically fixed with a second limit block (15), and the first row position insert (2) is symmetrically fixed on the second limit block (15). Two ends of a slider (5) are symmetrically provided with second limiting protrusions (502) matched with the second limiting blocks (15). 5. The three-stage ejection structure of the injection mold according to claim 1, characterized in that: the overall contour of the second sliding member (6) is T-shaped, and the first sliding member (5) is provided with a A second T-shaped groove (503) matched with the T-shaped second sliding piece (6). 6. The three-stage ejection structure of the injection mold according to claim 1, characterized in that: the inside of the first sliding member (5) and the end of the second sliding member (6) are respectively provided with L-shaped grooves (16), L-shaped protrusions matched with the L-shaped grooves (16) are respectively provided on the third row inserts (8) and the fourth row inserts (9) (17). 7. The three-stage row position ejection structure of an injection mold according to claim 1, characterized in that: the front mold (3) is fixed with a hypotenuse seat (18), and the inclined guide post (4) is fixed on the on the hypotenuse seat (18). 8 . The three-level row position ejection structure of an injection mold according to claim 1 , wherein a third limit block ( 19 ) is installed on the first row position insert ( 2 ), and the second row position insert ( 2 ). The bottom of the slider (6) is provided with a limit groove (601) matched with the third limit block (19); when the second slider (6) is out of the glue position, the third limit block (19) against the second slider (6). 9 . The three-stage row position ejection structure of an injection mold according to claim 1 , wherein the first row position insert ( 2 ) is symmetrically installed with a first sliding member ( 5 ) for limiting the position. 10 . The fourth limiting block (20) is provided; when the first sliding member (5) leaves the glue position, the fourth limiting block (20) abuts against the first sliding member (5). 10. The three-level row position ejection structure of an injection mold according to any one of claims 1 to 9, characterized in that: a wear block (21) is installed on the upper end of the middle part of the first row position insert (2). ).

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