CN211842979U

CN211842979U - Inclined core-pulling injection mold for movable mold

Info

Publication number: CN211842979U
Application number: CN202020193271.4U
Authority: CN
Inventors: 李明亮; 陆从相; 王淼
Original assignee: Yancheng Institute of Industry Technology
Current assignee: Yancheng Institute of Industry Technology
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2020-11-03
Anticipated expiration: 2030-02-21

Abstract

The utility model discloses a movable mould inclined core-pulling injection mould, wherein a sprue bush in the mould penetrates through a fixed mould base plate and a fixed mould plate and is in interference fit with the fixed mould base plate, the fixed mould base plate is connected with the fixed mould plate by using screws, a guide sleeve penetrates through the fixed mould plate and is in interference fit with the fixed mould plate, and a cavity is connected with the fixed mould plate by using screws; the core is connected with the movable mould plate by screws, the guide post penetrates through the movable mould plate and the support plate and is in interference fit with the guide post, the inclined core penetrates through the core and the movable mould plate, the push rod, the material pulling rod and the reset rod are arranged in the push rod fixing plate and penetrate through the movable mould plate and the support plate, the push rod fixing plate is connected with the push plate by screws, the movable mould base plate, the cushion block and the support plate are connected with the movable mould plate by screws, the cushion block is connected with the movable mould base plate by screws, the first spring is arranged between the movable mould plate and the support plate, and the second. The mold has simple structure, easy manufacture and convenient use, and can smoothly inject and eject the plastic part.

Description

Inclined core-pulling injection mold for movable mold

Technical Field

The utility model belongs to the technical field of the mould, concretely relates to oblique injection mold of loosing core of movable mould.

Background

The through holes on the surface of the plastic product are generally consistent with the demolding direction, and the difficulty of mold design is greatly reduced. When the through holes on the surface form a certain angle with the demolding direction, the demolding difficulty and deformation or damage during ejection need to be considered during mold design. And the angle between the through hole and the demolding direction is less than 2 degrees, forced demolding can be adopted, but for larger angles, the forced demolding can be adopted to jack the molded part.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an injection mold looses core to one side of movable mould, this mould simple structure easily makes, and convenient to use can inject smoothly and ejecting moulding.

The utility model discloses a realize through following technical scheme:

an inclined core-pulling injection mold for a movable mold comprises a fixed mold and the movable mold, wherein the fixed mold is movably connected with the movable mold, the fixed mold is arranged on the movable mold, wherein,

the fixed die comprises a fixed die base plate, a fixed die plate, a sprue bush, a guide sleeve and a cavity; the fixed die base plate is arranged above the fixed die plate; the sprue bush penetrates through the fixed die base plate and the fixed die plate and is in interference fit with the fixed die base plate and the fixed die plate; the guide sleeve penetrates through the fixed die plate and is in interference fit with the fixed die plate; the cavity is arranged in the fixed die plate;

the movable die comprises a movable die base plate, a movable die plate, a supporting plate, a cushion block, a die core, a guide pillar, an inclined die core, a push rod fixing plate, a push rod, a material pulling rod, a reset rod, a first spring and a second spring; the movable mold base plate is used as a bottom plate, cushion blocks, a bearing plate and a movable mold plate are sequentially stacked on the bottom plate, and the cushion blocks are arranged at two end parts of the movable mold base plate; the mold core is arranged inside the movable mold plate; the guide post penetrates through the movable die plate and the supporting plate and is in interference fit with the movable die plate and the supporting plate; the inclined core penetrates through the core and the movable template; a push rod fixing plate and a push plate are arranged between the cushion blocks, the push plate is arranged on the movable mold base plate, and the push rod fixing plate is arranged on the push plate; the push rod, the material pulling rod and the reset rod are all arranged in the push rod fixing plate and penetrate through the movable template and the supporting plate, the material pulling rod is located in the center of the push rod fixing plate, the push rod is located on two sides of the material pulling rod, and the reset rod is located at two end portions of the push rod fixing plate; the first spring is arranged between the movable template and the supporting plate; the second spring is arranged between the bearing plate and the push rod fixing plate;

in the above structure, the fixed die plate is connected to the movable die plate; the guide sleeve is connected with the guide pillar in a matching way; the cavity is connected with the core in a matching way.

Preferably, the upper part of the inclined core is in a long rod shape, the lower end of the inclined core is large, and the lower end of the inclined core is fastened by screws.

Preferably, the positioning and movement of the first and second springs are centered and guided on the reset lever.

Preferably, in the fixed die and the movable die, all the parts are connected through screws.

Preferably, the screw can move up and down between the parts, and the moving clearance is larger than the depth of the through hole on the surface of each part.

The utility model has the advantages as follows:

the utility model discloses an injection mold looses core to one side of movable mould simple structure easily makes, and convenient to use can inject smoothly and ejecting moulding.

Drawings

FIG. 1 is a front view of a movable mold inclined core-pulling injection mold;

FIG. 2 is a left side view of the movable mold tapered core pulling injection mold;

in the figure: 1. a sprue bush; 2. a fixed die base plate; 3. fixing a template; 4. moving the template; 5. a support plate; 6. cushion blocks; 7. a push rod fixing plate; 8. pushing the plate; 9. a movable mould seat plate; 10. a guide post; 11. an inclined mold core; 12. a guide sleeve; 13. a reset lever; 14. a first spring; 15. a second spring; 16. a core; 17. a cavity; 18. a push rod; 19. and (5) pulling the material rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

An inclined core-pulling injection mold for a movable mold, as shown in fig. 1, comprises a fixed mold and a movable mold, wherein the fixed mold is movably connected with the movable mold, the fixed mold is arranged on the movable mold, wherein,

the fixed die comprises a fixed die base plate 2, a fixed die plate 3, a sprue bush 1, a guide bush 12 and a cavity 17; the fixed die base plate 2 is arranged on the fixed die plate 3 and is connected through screws; the sprue bush 1 penetrates through the fixed die base plate 2 and the fixed die plate 3 and is in interference fit with the fixed die base plate; the guide sleeve 12 penetrates through the fixed die plate 3 and is in interference fit with the fixed die plate; the cavity 17 is arranged in the fixed die plate 3 and is connected through screws;

the movable die comprises a movable die base plate 9, a movable die plate 4, a supporting plate 5, a cushion block 6, a core 16, a guide post 10, an inclined core 11, a push rod fixing plate 7, a push plate 8, a push rod 18, a material pulling rod 19, a reset rod 13, a first spring 14 and a second spring 15; the movable mold base plate 9 is used as a bottom plate, cushion blocks 6, a support plate 5 and a movable mold plate 4 are sequentially stacked on the bottom plate and connected through screws, and the cushion blocks 6 are arranged at two end parts of the movable mold base plate 9; the mold core 16 is arranged inside the movable mold plate 4 and connected through screws; the guide post 10 penetrates through the movable mould plate 4 and the supporting plate 5 and is in interference fit with the movable mould plate and the supporting plate; the inclined core 11 penetrates through the core 16 and the movable die plate 4; a push rod fixing plate 7 and a push plate 8 are arranged between the cushion blocks 6, the push plate 8 is arranged on the movable mold base plate 9, and the push rod fixing plate 7 is arranged on the push plate 8 and connected with the push plate 8 through screws; the push rod 18, the material pulling rod 19 and the reset rod 13 are all arranged in the push rod fixing plate 7 and penetrate through the movable die plate 4 and the supporting plate 5, the material pulling rod 19 is located in the center of the push rod fixing plate 7, the push rod 18 is located on two sides of the material pulling rod 19, and the reset rod 13 is located at two end parts of the push rod fixing plate 7; the first spring 14 is arranged between the movable die plate 4 and the supporting plate 5; the second spring 15 is arranged between the support plate 5 and the push rod fixing plate 7;

in the above structure, the fixed die plate 3 is connected with the movable die plate 4; the guide sleeve 12 is connected with the guide post 10 in a matching way; the cavity 17 is in mating connection with the core 16.

The upper part of the inclined mold core 11 is in a long rod shape, the lower end of the inclined mold core is large and used for positioning, and when the inclined mold core penetrates through the mold core 16 and the movable mold plate 4, the lower end of the inclined mold core is fastened by screws.

The positioning and movement of the first spring 14 and the second spring 15 are centered and guided by the return arm 13. When the mold is opened, the compressed first spring 14 releases elasticity to drive the inclined mold core 11 to be drawn out from the through hole on the surface of the plastic part; the compressed second spring 15 helps the reset rod 13 to reset in advance after the plastic part is ejected out, and the collision between the reset rod 13 and the fixed die plate 3 is reduced.

The movable mold base plate 9, the cushion block 6, the bearing plate 5 and the movable mold plate 4 are connected through screws, the screws can move up and down in the movable mold base plate 9, the cushion block 6 and the bearing plate 5 at the moment of mold closing and mold opening of the mold, and the movable clearance is greater than the depth of the through hole on the surface of the plastic part.

The operation process of the movable mould inclined core-pulling injection mould comprises the following steps:

when the fixed die and the movable die are closed, molten plastic is injected into the die, after the plastic is solidified, one side of the movable die moves downwards, the material pulling rod 19 simultaneously pulls out the condensed material from the sprue bush 1, and meanwhile, the compressed first spring 14 gradually releases elasticity to drive the movable die plate 4 to move upwards relatively, and the movable die plate 4 drives the plastic part on the core 16 to move upwards, so that the inclined core 11 is obliquely pulled out of the plastic part; the movable mould continues to move downwards for a certain distance and stops moving, and the push plate 8 and the push rod 18 are driven to eject the plastic part from the mold core 16 under the action of the ejector rod of the injection machine; when the ejector rod of the injection machine retreats, the reset rod 13, the push rod 18, the material pulling rod 19, the push rod fixing plate 7 and the push plate 8 automatically reset under the driving of the compressed second spring 15, and the operation is completed.

Claims

1. An inclined core-pulling injection mold for a movable mold is characterized by comprising a fixed mold and the movable mold, wherein the fixed mold is movably connected with the movable mold, the fixed mold is arranged on the movable mold, wherein,

the fixed die comprises a fixed die base plate, a fixed die plate, a sprue bush, a guide sleeve and a cavity; the fixed die base plate is arranged above the fixed die plate; the sprue bush penetrates through the fixed die base plate and the fixed die plate and is in interference fit with the fixed die base plate and the fixed die plate; the guide sleeve penetrates through the fixed die plate and is in interference fit with the fixed die plate; the cavity is arranged in the fixed die plate; the movable die comprises a movable die base plate, a movable die plate, a supporting plate, a cushion block, a die core, a guide pillar, an inclined die core, a push rod fixing plate, a push rod, a material pulling rod, a reset rod, a first spring and a second spring; the movable mold base plate is used as a bottom plate, cushion blocks, a bearing plate and a movable mold plate are sequentially stacked on the bottom plate, and the cushion blocks are arranged at two end parts of the movable mold base plate; the mold core is arranged inside the movable mold plate; the guide post penetrates through the movable die plate and the supporting plate and is in interference fit with the movable die plate and the supporting plate; the inclined core penetrates through the core and the movable template; a push rod fixing plate and a push plate are arranged between the cushion blocks, the push plate is arranged on the movable mold base plate, and the push rod fixing plate is arranged on the push plate; the push rod, the material pulling rod and the reset rod are all arranged in the push rod fixing plate and penetrate through the movable template and the supporting plate, the material pulling rod is located in the center of the push rod fixing plate, the push rod is located on two sides of the material pulling rod, and the reset rod is located at two end portions of the push rod fixing plate; the first spring is arranged between the movable template and the supporting plate; the second spring is arranged between the bearing plate and the push rod fixing plate;

2. The movable mold inclined core pulling injection mold as claimed in claim 1, wherein the upper portion of the inclined core is a long rod shape, the lower end is large, and the lower end is fastened by a screw.

3. The movable core inclined core pulling injection mold according to claim 1, wherein the positioning and movement of the first spring and the second spring are centered and guided by the return rod.

4. The inclined core pulling injection mold of the movable mold according to claim 1, wherein in the fixed mold and the movable mold, all parts are connected through screws.

5. The movable mold inclined core pulling injection mold as claimed in claim 4, wherein the screw is movable up and down between the components, and a movable clearance is larger than a depth of the through hole on the surface of each component.