CN210336744U - Simple locking oil cylinder returning device of injection mold - Google Patents
Simple locking oil cylinder returning device of injection mold Download PDFInfo
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- CN210336744U CN210336744U CN201921022319.9U CN201921022319U CN210336744U CN 210336744 U CN210336744 U CN 210336744U CN 201921022319 U CN201921022319 U CN 201921022319U CN 210336744 U CN210336744 U CN 210336744U
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Abstract
The utility model provides an injection mold simply locks hydro-cylinder and moves back device, including convex wedge piece (1), concave wedge slider (2) and spring (3). The convex wedge block adopted by the utility model is provided with a convex wedge, the concave wedge slide block is provided with a concave wedge, and the spring is a cylindrical helical compression spring; when the die is applied, the convex wedge block is fixed at the connector, the concave wedge slide block is slidably positioned in a placement groove arranged on the movable die, the spring is positioned at the other end, opposite to the concave wedge, of the concave wedge slide block, and the spring applies pressure to enable the convex wedge and the concave wedge to be matched with each other in a die closing state; when the injection mold oil cylinder works, high-pressure backspacing force is decomposed through the convex wedge block, the concave wedge sliding block and the spring, so that the technical scheme that the single oil cylinder with small specification realizes non-return is achieved, and the purposes of reducing cost and occupying small inner space of the mold are achieved by the non-return of the oil cylinder of the injection mold.
Description
Technical Field
The utility model relates to a hydro-cylinder is prevented moving back the device, specifically indicates a simple and easy locking hydro-cylinder of injection mold that is used for injection mold locking to loose core the hydro-cylinder and moves back and returns device.
Background
When the oil cylinder is used for driving a core-pulling block by an injection mold, a backspacing phenomenon can occur in the high-pressure process of injection molding, the backspacing phenomenon can cause the product to have poor quality and even be scrapped, and for the backspacing phenomenon, the prior art has a non-return oil cylinder method, namely, a non-return oil cylinder provided with a non-return device is adopted to realize non-return; the double-oil-cylinder method is characterized in that two oil cylinders are adopted, one oil cylinder is used for driving the core-pulling block, and the other oil cylinder is used for driving the wedge block to lock the core-pulling block to realize non-return; the check oil cylinder is expensive, high in cost and large in size, and when the check oil cylinder is applied, a large placing space needs to be reserved in a die, so that the size of the die is increased, and the cost of the die is increased; the double-oil-cylinder method also has the problems of high cost and large space occupation in the die, so the prior art has the problems and disadvantages of high cost and large space occupation.
Disclosure of Invention
Aiming at the problems and the defects of the prior art, the utility model adopts a device consisting of a convex wedge block, a concave wedge slide block and a spring, wherein the convex wedge block is a massive steel component, and an isosceles trapezoid flange with two sides respectively forming an angle of 45 degrees with the lower bottom is convexly arranged on the upper surface of the convex wedge block and is called a convex wedge; the concave wedge sliding block is a rectangular block-shaped steel component, and a half slot matched with the convex wedge in shape correspondingly is arranged at the right part of the lower end of the concave wedge sliding block and is called a concave wedge; the spring is a cylindrical spiral compression spring;
when the die is applied, the convex wedge block is fixed at the connector, the concave wedge slide block is slidably positioned in a placement groove arranged on the movable die, the spring is positioned at the other end, opposite to the concave wedge, of the concave wedge slide block, and the spring applies pressure to enable the convex wedge and the concave wedge to be matched with each other in a die closing state; the coupler is a component for connecting a piston rod of the oil cylinder and the core-pulling block; the high-pressure retraction force generated by injection molding is decomposed into a horizontal component force and a vertical component force by the convex wedges and the concave wedges which are mutually matched by the convex wedge blocks and the concave wedge slide blocks, wherein the horizontal component force acting on the oil cylinder is 0.707 of the high-pressure retraction force, and the vertical component force acting on the spring is 0.707 of the high-pressure retraction force, so that the requirements of non-return and non-return can be met only by adjusting the elastic pressure of the spring and selecting the locking force and the back-suction force matched with the oil cylinder, namely, the locking force and the back-suction force of the selected oil cylinder are only slightly greater than the high-pressure retraction force of 0.707; when the oil cylinder works in an injection molding state, the locking force of the selected oil cylinder is only slightly greater than the high-pressure retraction force of 0.707, and the requirement of non-return can be met; work is in the tense of loosing core, and the back draft force of hydro-cylinder only needs to be slightly greater than 0.707 high pressure backspacing, and the hydro-cylinder can drive the core-pulling piece and take back the pump and move left, and the convex wedge of convex wedge the convex wedge warp the concave wedge upwards pushes away the concave wedge slider, overcomes the pressure of spring, and upward movement sends convex wedge unbuckled, makes the core-pulling piece loose core the technical scheme that the drawing of patterns was come out left, provides an injection mold simply to lock hydro-cylinder backspacing device, aims at making the non return of injection mold hydro-cylinder, reaches reduce cost, occupies the little purpose in mould inner space.
The purpose of the utility model is realized like this: the utility model provides an injection mold simply locks hydro-cylinder and moves back device, includes convex wedge, concave wedge slider and spring, wherein: the convex wedge block is a block-shaped steel component, and isosceles trapezoid flanges with two sides respectively forming an angle of 45 degrees with the lower bottom are convexly arranged on the upper surface of the convex wedge block and are called convex wedges;
the concave wedge sliding block is a rectangular block-shaped steel component, and a gap, the shape of which is correspondingly matched with that of the convex wedge, is arranged at the right part of the lower end of the concave wedge sliding block and is called a concave wedge;
the spring is a cylindrical spiral compression spring;
when the die is applied, the convex wedge block is fixed at the connector, the concave wedge slide block is slidably positioned in a placement groove arranged on the movable die, the spring is positioned at the other end, opposite to the concave wedge, of the concave wedge slide block, and the spring applies pressure to enable the convex wedge and the concave wedge to be matched with each other in a die closing state;
the coupler is a component connected between a piston rod of the oil cylinder and the core-pulling block.
Working principle and beneficial effects
The high-pressure retraction force generated by injection molding is decomposed into a horizontal component force and a vertical component force by the convex wedges and the concave wedges which are mutually matched by the convex wedge blocks and the concave wedge slide blocks, wherein the horizontal component force acting on the oil cylinder is 0.707 of the high-pressure retraction force, and the vertical component force acting on the spring is 0.707 of the high-pressure retraction force, so that the requirements of non-return and non-return can be met only by adjusting the elastic pressure of the spring and selecting the locking force and the back-suction force matched with the oil cylinder, namely, the locking force and the back-suction force of the selected oil cylinder are only slightly greater than the high-pressure retraction force of 0.707;
when the oil cylinder works in an injection molding state, the locking force of the selected oil cylinder is only slightly greater than the high-pressure retraction force of 0.707, and the requirement of non-return can be met;
when the core pulling device works in a core pulling state, the drawing back force of the oil cylinder only needs to be slightly larger than 0.707 high-pressure drawing back force, the oil cylinder can drive the core pulling block to draw back and move leftwards, the convex wedge of the convex wedge upwards pushes the concave wedge sliding block through the concave wedge, the pressure of the spring is overcome, the convex wedge moves upwards, the convex wedge is unlocked, and the core pulling block is pulled out leftwards and is released.
The device has the advantages of simple structure, reliable work and small shape, decomposes high-pressure backspacing force through the convex wedge block, the concave wedge slide block and the spring, can realize non-return of the single small-specification oil cylinder, avoids the defects of a non-return oil cylinder method and a double-oil cylinder method adopted in the prior art, ensures the non-return of the injection mold oil cylinder, reduces the cost and reduces the occupation of the inner space of the mold.
The utility model adopts a device composed of a convex wedge block, a concave wedge slide block and a spring, wherein the convex wedge block is a block-shaped steel component, and an isosceles trapezoid flange with two sides respectively forming an angle of 45 degrees with the lower bottom is convexly arranged on the upper surface of the convex wedge block and is called a convex wedge; the concave wedge sliding block is a rectangular block-shaped steel component, and a half slot matched with the convex wedge in shape correspondingly is arranged at the right part of the lower end of the concave wedge sliding block and is called a concave wedge; the spring is a cylindrical spiral compression spring; when the die is applied, the convex wedge block is fixed at the connector, the concave wedge slide block is slidably positioned in a placement groove arranged on the movable die, the spring is positioned at the other end, opposite to the concave wedge, of the concave wedge slide block, and the spring applies pressure to enable the convex wedge and the concave wedge to be matched with each other in a die closing state; during operation, the high-pressure backspacing force is decomposed through the convex wedge block, the concave wedge sliding block and the spring, the technical scheme that the single oil cylinder with small specifications can realize non-return is achieved, the problems and the defects that in the prior art, cost is high and occupied space is large are solved, the provided injection mold simply locks the oil cylinder backspacing device, the non-return of the oil cylinder of the injection mold is achieved, and the purposes that cost is reduced and the occupied space of the interior of the mold is small are achieved.
Drawings
Fig. 1 is a schematic view of a front view cross-sectional structure of a simple locking oil cylinder returning device of an injection mold in an application mold of the present invention;
FIG. 2 is an enlarged drawing of portion A of FIG. 1;
fig. 3 is the utility model discloses a simple and easy locking hydro-cylinder of injection mold returns device, the principle sketch map of the attitude of working at the time of loosing core.
The invention will be described in more detail below with reference to an exemplary embodiment shown in the drawings, which should not be construed as limiting the invention in any way.
In the figure: the device comprises a convex wedge block 1, a concave wedge slide block 2, a spring 3, a connector 01, an oil cylinder 02, a core-pulling block 03, a movable die 04 and a movable die core 05.
Detailed Description
Referring to fig. 1-3, the utility model discloses a simple and easy locking hydro-cylinder of injection mold returns device, including convex wedge 1, concave wedge slider 2 and spring 3, wherein: the convex wedge block 1 is a block-shaped steel component, and isosceles trapezoid flanges with two sides respectively forming an angle of 45 degrees with the lower bottom are convexly arranged on the upper surface of the convex wedge block 1 and are called convex wedges;
the concave wedge sliding block 2 is a rectangular block-shaped steel component, and a gap, the shape of which is correspondingly matched with that of the convex wedge, is arranged at the right part of the lower end of the concave wedge sliding block 2 and is called a concave wedge;
the spring 3 is a cylindrical spiral compression spring;
when the die is applied, the convex wedge block 1 is fixed at the coupler 01, the concave wedge slide block 2 is slidably positioned in a placement groove arranged on the movable die 04, the spring 3 is positioned at the other end, opposite to the concave wedge, of the concave wedge slide block 2, and the spring 3 exerts pressure to enable the convex wedge and the concave wedge to be matched with each other in a die closing state;
the coupler 01 is a component for connecting a piston rod of the oil cylinder 02 and the core-pulling block 03.
Working principle and beneficial effects
The high-pressure retraction force generated by injection molding is decomposed into a horizontal component force and a vertical component force by the convex wedges and the concave wedges which are mutually matched by the convex wedge block 1 and the concave wedge slide block 2, wherein the horizontal component force acting on the oil cylinder 02 is the high-pressure retraction force of 0.707, and the vertical component force acting on the spring 3 is the high-pressure retraction force of 0.707, so that the requirements of non-return and non-return can be met only by adjusting the elastic pressure of the spring 3 and selecting the locking force and the back-suction force matched with the oil cylinder 02, namely, the locking force and the back-suction force of the oil cylinder 02 are only slightly greater than the high-pressure retraction force of 0.707;
when the locking mechanism works in an injection molding state, the locking force of the selected oil cylinder 02 only needs to be slightly larger than the high-pressure retraction force of 0.707, and the requirement for non-return can be met;
when the core pulling device works in a core pulling state, the drawing back force of the oil cylinder 02 only needs to be slightly larger than 0.707 high-pressure drawing back force, the oil cylinder 02 can drive the core pulling block 03 to draw back and move leftwards, the convex wedge of the convex wedge block 1 upwards pushes the concave wedge slide block 2 through the concave wedge, the pressure of the spring 3 is overcome, the convex wedge block 1 moves upwards, and the core pulling block 03 is released leftwards to be subjected to core pulling and demoulding.
The device is simple in structure, reliable in work and small in size, high-pressure backspacing force is decomposed through the convex wedge blocks 1, the concave wedge sliding blocks 2 and the springs 3, the oil cylinder 02 with a single small specification can realize non-return, the defects that a non-return oil cylinder method and a double-oil cylinder method are adopted in the prior art are avoided, the non-return of the oil cylinder 02 of the injection mold is realized, the cost is reduced, and the occupation of the inner space of the mold is reduced.
Claims (1)
1. The utility model provides an injection mold simply locks hydro-cylinder and moves back device, includes convex wedge piece (1), concave wedge slider (2) and spring (3), its characterized in that: the convex wedge block (1) is a block-shaped steel component, and isosceles trapezoid flanges with two sides respectively forming an angle of 45 degrees with the lower bottom are convexly arranged on the upper surface of the convex wedge block (1) and are called convex wedges;
the concave wedge sliding block (2) is a rectangular block-shaped steel component, and a gap, the shape of which is correspondingly matched with that of the convex wedge, is formed in the right part of the lower end of the concave wedge sliding block (2) and is half of a slot, namely a concave wedge;
the spring (3) is a cylindrical spiral compression spring;
when the die is used, the convex wedge block (1) is fixed at the coupler (01), the concave wedge sliding block (2) is slidably positioned in a placement groove arranged on the movable die (04), the spring (3) is positioned at the other end, opposite to the concave wedge, of the concave wedge sliding block (2), and the spring (3) is pressed to enable the convex wedge and the concave wedge to be matched with each other in a die closing state;
the coupler (01) is a component for connecting a piston rod of the oil cylinder (02) and the core-pulling block (03).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921022319.9U CN210336744U (en) | 2019-06-27 | 2019-06-27 | Simple locking oil cylinder returning device of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921022319.9U CN210336744U (en) | 2019-06-27 | 2019-06-27 | Simple locking oil cylinder returning device of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210336744U true CN210336744U (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921022319.9U Active CN210336744U (en) | 2019-06-27 | 2019-06-27 | Simple locking oil cylinder returning device of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210336744U (en) |
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2019
- 2019-06-27 CN CN201921022319.9U patent/CN210336744U/en active Active
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