CN105269770B

CN105269770B - Demolding method for long barrel-shaped product of injection mold

Info

Publication number: CN105269770B
Application number: CN201510817151.0A
Authority: CN
Inventors: 华小光
Original assignee: Ningbo Zheng Jia Molding Co Ltd
Current assignee: Ningbo Zheng Jia Molding Co., Ltd.
Priority date: 2015-11-23
Filing date: 2015-11-23
Publication date: 2020-04-10
Anticipated expiration: 2035-11-23
Also published as: CN105269770A

Abstract

The invention provides a mold stripping method of a long barrel product of an injection mold, which comprises a hydraulic cylinder 1, a hydraulic cylinder fixing plate, a push rod, a guide rod, a push plate, a sliding connecting plate, a limiting surface, a fixed mold limiting block, a mold core, a product, a fixed mold fixing plate, a fixed mold, a guide pillar, a movable mold fixing plate, a movable mold and a movable mold limiting block, wherein the fixed mold is fixed on the fixed mold fixing plate; the mold provided by the technical scheme greatly reduces the total thickness of the mold, enables the mold to be produced on a smaller machine, and reduces a large amount of material cost and processing cost in the production and processing of the mold.

Description

Demolding method for long barrel-shaped product of injection mold

Technical Field

The invention relates to the field of injection molds, in particular to a mold stripping method for a long barrel-shaped product of an injection mold.

Background

At present, in the field of injection molds, a conventional cavity and a moving mold are generally technically adopted for a mold stripping method of a long-barrel-shaped product, and a stripper plate is adopted for stripping the product; however, the demolding method has two major disadvantages, one is that the depth of the cavity is deep, so that the thickness of the periphery of the cavity needs to be large, the cavity is ensured not to crack in long-time injection molding production, and the material cost and the processing cost are high; secondly, the thickness of the die is thick, the tonnage of a machine required by the die is large, and the production cost is high; in view of the problems and the defects in the prior art, the method for stripping the long barrel product of the injection mold is designed aiming at the practical problem of the stripping mode of the long barrel product, the traditional deep cavity type up-down stripping mode is changed into the side-lying core-pulling mode for stripping, the design structure is reasonable, the operation is convenient, the safety and the reliability are realized, and the manufacturing and production cost can be greatly reduced.

Disclosure of Invention

The invention aims to solve the technical problem of providing a mold stripping method of a long barrel type product of an injection mold, which has the advantages of reasonable design, stable work, safety, reliability and cost saving; in order to solve the above-mentioned existing technical problem, the invention adopts the following scheme: a mold stripping method for a long barrel product of an injection mold comprises a hydraulic cylinder 1, a hydraulic cylinder fixing plate, a push rod, a guide rod, a push plate, a sliding connection plate, a limiting surface, a fixed mold limiting block, a mold core, a product, a fixed mold fixing plate, a fixed mold, a guide pillar, a movable mold fixing plate, a movable mold and a movable mold limiting block.

Preferably, the slide connecting plates are respectively matched with grooves on the fixed die fixing plate, the fixed die, the movable die fixing plate and the movable die 1, and can move up and down, as shown in fig. 1, 2 and 3.

Preferably, the limiting surface on the sliding connecting plate is in contact with the fixed die limiting block and the movable die limiting block respectively, as shown in fig. 1 and fig. 2.

Preferably, the fixed die limiting block and the movable die limiting block are respectively and fixedly connected with the fixed die and the movable die, as shown in fig. 1 and 3.

Preferably, a guide post is arranged on one surface of the movable mold opposite to the fixed mold, as shown in fig. 1.

Preferably, the core is fixed to the push plate and cooperates with the slide web, as shown in figures 1 and 2.

Preferably, two holes on the push plate are matched with the guide rod, and the middle of the push plate is fixedly connected with the push rod, as shown in fig. 1 and 2.

Preferably, the guide rods are fixedly connected with the sliding connection plate and the hydraulic cylinder fixing plate respectively, as shown in fig. 1, 2 and 3.

Preferably, the hydraulic cylinder is fixed on the hydraulic cylinder fixing plate and can drive the push rod to move left and right, as shown in fig. 1, 2, 3, 4 and 5.

Has the advantages that: a method for demoulding long-barrel product of injection mould features that on the basis of traditional deep-cavity up-down demoulding mode, the product is rotated by 90 deg. its original deep cavity is changed into half of upper mould and half of lower mould, and the original moving mould is changed into hydraulic cylinder for loosing core.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a method for removing a long barrel-shaped product from an injection mold according to the present invention.

FIG. 2 is a cross-sectional view showing the overall structure of a method for removing a long barrel-shaped product from an injection mold according to the present invention.

FIG. 3 is a schematic structural diagram of an injection molding state of an injection mold for demolding a long barrel-shaped product according to the present invention.

FIG. 4 is a cross-sectional view of the injection molding state of the long barrel product of the injection mold according to the present invention.

FIG. 5 is a structural cross-sectional view of the injection mold in a mold-stripping state of a long barrel product according to the present invention.

Detailed Description

As shown in fig. 1 to 3, a method for stripping a long barrel product of an injection mold comprises a hydraulic cylinder 1, a hydraulic cylinder fixing plate 2, a push rod 4, a guide rod 3, a push plate 5, a sliding connection plate 6, a limiting surface 61, a fixed mold limiting block 7, a mold core 8, a product 9, a fixed mold fixing plate 10, a fixed mold 11, a guide pillar 12, a movable mold fixing plate 13, a movable mold 14 and a movable mold limiting block 15, and is characterized in that: the hydraulic cylinder 1 is fixed on the hydraulic cylinder fixing plate 2 through a bolt, and the two guide rods 3 respectively penetrate through the two holes of the push plate 5.

The slide connecting plate 6 is respectively matched with grooves on a fixed die fixing plate 10, a fixed die 11, a movable die fixing plate 13 and a movable die 14, and can move up and down, as shown in figures 1, 2 and 3.

The limiting surface 61 on the sliding connecting plate 6 is respectively contacted with the fixed die limiting block 7 and the movable die limiting block 15, as shown in fig. 1 and 2.

The fixed die limiting block 7 and the movable die limiting block 15 are respectively and fixedly connected with the fixed die 11 and the movable die 14, as shown in fig. 1 and 3.

And a guide post 12 is arranged on one surface of the movable die 14 opposite to the fixed die 11, as shown in figure 1.

The core 8 is fixed to the push plate 5 and cooperates with the sliding web 6, as shown in figures 1 and 2.

Two holes on the push plate 5 are matched with the guide rod 3, and the middle of the push plate is fixedly connected with the push rod 4, as shown in figures 1 and 2.

The guide rod 3 is fixedly connected with the sliding connection plate 6 and the hydraulic cylinder fixing plate 2 respectively, as shown in fig. 1, 2 and 3.

The hydraulic cylinder 1 is fixed on a hydraulic cylinder fixing plate 2 and can drive a push rod 4 to move left and right, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5.

During actual work, as shown in fig. 3 and 4 during injection molding, after the injection molding operation is completed, as shown in fig. 5, the movable mold 14 is separated from the fixed mold 11, the movable mold limiting block 15 on the movable mold 14 touches the limiting surface 61, the sliding connecting plate 6 is driven to move along with the movable mold 14 until the limiting surface 61 touches the fixed mold limiting block 7, and the mold opening is stopped; pneumatic cylinder 1 pulling push rod 4, push rod 4 pulling push pedal 5, core 8 and product 9 move to the right, after moving a distance, sliding connection board 6 is touch to product 9, and core 8 continues to move to the right, and meanwhile, product 9 touches stopping of sliding connection board 6 and is in and stops moving to the right, and this makes product 9 break away from core 8, accomplishes the whole demolding process of product 9.

The invention overcomes the problems of large volume, large thickness of the cavity wall, more materials, high processing cost and the like of the traditional deep cavity type mold stripping mode; the product is rotated by 90 degrees by using a side-lying core-pulling demoulding mode, the original deep cavity is changed into a half of an upper mould and a half of a lower mould, and the original movable mould is changed into a hydraulic cylinder for core pulling, so that the volume of the mould is reduced, and the production cost is reduced; the operation is flexible and convenient, the efficiency is high, the work is stable, and the operation is safe and reliable.

The embodiments described herein are merely illustrative of the spirit of the invention and various modifications, additions and substitutions may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides an injection mold of long bucket type goods, includes pneumatic cylinder (1), pneumatic cylinder fixed plate (2), push rod (4), guide bar (3), push pedal (5), sliding connection board (6), spacing face (61), cover half stopper (7), core (8), product (9), cover half fixed plate (10), cover half (11), guide pillar (12), movable mould fixed plate (13), movable mould (14), movable mould stopper (15), its characterized in that: the hydraulic cylinder (1) is fixed on the hydraulic cylinder fixing plate (2) through a bolt, the two guide rods (3) respectively penetrate through the two holes of the push plate (5), the two ends of the two guide rods are respectively fixed on the hydraulic cylinder fixing plate (2) and the sliding connecting plate (6), and the push plate (5) is fixedly connected with the push rod (4) of the hydraulic cylinder, so that the push plate (5) can move between the hydraulic cylinder fixing plate (2) and the sliding connecting plate (6) along the direction of the guide rods (4); the mold core (8) is fixedly connected with the push plate (5) through a bolt, and the mold core (8) can pass through a central circular hole of the sliding connection plate (6); the fixed die (11) is fixedly connected with the fixed die fixing plate (10) and is positioned at the lower end of the mold core (8); the movable mould (14) is fixedly connected with the movable mould fixing plate (13) and is positioned at the upper end of the mould core (8); the sliding connecting plate (6) is respectively matched with grooves on the fixed die fixing plate (10), the fixed die (11), the movable die fixing plate (13) and the movable die (14) and can move up and down; a limiting surface (61) on the sliding connecting plate (6) is respectively contacted with the fixed die limiting block (7) and the movable die limiting block (15); the fixed die limiting block (7) and the movable die limiting block (15) are respectively and fixedly connected with the fixed die (11) and the movable die (14); a guide post (12) is arranged on one surface of the movable die (14) opposite to the fixed die (11); the mold core (8) is fixed on the push plate (5) and is matched with the sliding connecting plate (6); two holes on the push plate (5) are matched with the guide rod (3), and the middle of the push plate is fixedly connected with the push rod (4); the guide rod (3) is respectively and fixedly connected with the sliding connection plate (6) and the hydraulic cylinder fixing plate (2); the hydraulic cylinder (1) is fixed on the hydraulic cylinder fixing plate (2) and can drive the push rod (4) to move left and right.