CN112477008B - Self-locking structure for front mold of injection mold - Google Patents
Self-locking structure for front mold of injection mold Download PDFInfo
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- CN112477008B CN112477008B CN202011353566.4A CN202011353566A CN112477008B CN 112477008 B CN112477008 B CN 112477008B CN 202011353566 A CN202011353566 A CN 202011353566A CN 112477008 B CN112477008 B CN 112477008B
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- mold
- shovel
- front mold
- chute
- slide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of injection molds, in particular to a front mold line position self-locking structure of an injection mold, which comprises an oil cylinder, a front mold line position and a shovel machine, wherein one end of the front mold line position is provided with a chute, a shovel head of the shovel machine is Z-shaped, the shovel head is in sliding insertion connection with the chute, the tail end of the shovel machine is connected with a piston of the oil cylinder, and the piston of the oil cylinder drives the shovel head to move backwards in the chute so as to force the front mold line position to move away from a product buckling position. The shovel machine is made into a Z shape, so that the phenomenon that the slide possibly retreats due to injection molding pressure under the condition that the product area on the slide is large is solved. The thimble scheme has solved when injection molding machine platform restriction mould size, can't do the line position and need save space's problem.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to a front mold slide self-locking structure of an injection mold.
Background
In the mold designing and manufacturing process, along with the continuous development of the die casting technology, in order to meet the use requirements of various products, the die casting gradually becomes more and more complex from a simple part, especially, part of the die casting is loose, when the stroke is short and the projection area is large, the needed loose core force is small, the needed bulging force is large, and meanwhile, the loose core force and the bulging force are needed to be met, so that the situation that the loose core does not retreat in the die casting process can be guaranteed, however, the phenomenon that the loose core retreats frequently occurs due to the fact that the oil pressure of a system, the oil cylinder sealing and the like are insufficient, once the loose core retreats, the phenomena that the size of the produced product is changed, the mold runs to have burrs and the like can be caused, the mold can not be normally produced, and more defective products can be generated.
Therefore, when the injection mold needs to design the slide on the mold fixing side, the cylinder is often used to drive the slide. And generally, the oil cylinder can release pressure after the die is closed at the line position. Under the condition that the area of the plastic product on the slide is larger, in the injection molding process, strong injection molding pressure forces the slide to move backwards, and the quality of the injection molded product cannot be ensured. Meanwhile, especially when a small hole is reversed in the lateral direction of a product, the line position demolding cannot be designed due to the limitation of the size of an injection molding machine.
Disclosure of Invention
The invention provides a front mold slide self-locking structure of an injection mold, which solves the technical problem that a slide moves backwards under injection pressure when a slide structure is arranged on the fixed mold side of the injection mold.
The invention provides a self-locking structure for a front mold line position of an injection mold, which comprises an oil cylinder, the front mold line position and a shovel machine, wherein one end of the front mold line position is provided with a chute, a shovel head of the shovel machine is Z-shaped, the shovel head is in sliding insertion connection with the chute, the tail end of the shovel machine is connected with a piston of the oil cylinder, and the piston of the oil cylinder drives the shovel head to move backwards in the chute so as to force the front mold line position to move away from a product buckling position.
Preferably, the self-locking structure further comprises an ejector pin, and an included angle is formed between the ejector pin and the moving direction of the front mould slide.
Preferably, the ejector pin is connected with the fixed die through a spring.
Preferably, the spring has a spring-out distance of 4mm.
Preferably, the chute is trumpet-shaped, and the shovel head is inserted from a small-opening end of the trumpet-shaped chute.
Preferably, the anterior mold row bits are parallelogram shaped.
Preferably, the front mold is located in the front mold, and the oil cylinder is fixedly connected with the front mold.
Has the advantages that: the invention provides a front mold line position self-locking structure of an injection mold, which comprises an oil cylinder, a front mold line position and a shovel machine, wherein one end of the front mold line position is provided with a chute, a shovel head of the shovel machine is Z-shaped, the shovel head is in sliding insertion connection with the chute, the tail end of the shovel machine is connected with a piston of the oil cylinder, and the piston of the oil cylinder drives the shovel head to move backwards in the chute so as to force the front mold line position to move to be separated from a product buckling position. The shovel machine is made into a Z shape, so that the phenomenon that the slide possibly retreats due to injection molding pressure under the condition that the product area on the slide is large is solved. The thimble scheme has been solved when injection molding machine platform restriction mould size, can't do the line position and need save space's problem.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a perspective view of a front mold slide self-locking structure of an injection mold according to the present invention;
FIG. 2 is a mold closing diagram of the front mold slide self-locking structure of the injection mold of the present invention;
FIG. 3 is a first state diagram of the mold opening of the front mold slide self-locking structure of the injection mold of the present invention;
FIG. 4 is a second state diagram of the mold opening of the front mold slide self-locking structure of the injection mold of the present invention;
FIG. 5 is a third state diagram of the mold opening of the front mold slide self-locking structure of the injection mold of the present invention.
Description of reference numerals: the device comprises an oil cylinder 1, a front mould slide 2, a shovel machine 3, a shovel head 4, a thimble 5, a spring 6, a chute 7 and a product 8.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention. The invention is more particularly described in the following paragraphs with reference to the accompanying drawings by way of example. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for purposes of illustration only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 5, the invention provides a front mold slide self-locking structure of an injection mold, which comprises an oil cylinder 1, a front mold slide 2 and a shovel 3, wherein one end of the front mold slide 2 is provided with a chute 7, a shovel head 4 of the shovel 3 is Z-shaped, the shovel head 4 is inserted into the chute 7 in a sliding manner, the tail end of the shovel 3 is connected with a piston of the oil cylinder 1, and the piston of the oil cylinder 1 drives the shovel head 4 to move backwards in the chute 7 so as to force the front mold slide 2 to move away from a product 8 buckling position. The shovel machine 3 is made into a Z shape, so that the phenomenon that the slide possibly retreats due to injection molding pressure under the condition that the area of a product 8 on the slide is large is solved. The thimble 5 scheme has solved when injection molding machine platform restriction mould size, can't do the line position need save space's problem.
And after the mold is closed, the injection molding machine starts to perform injection molding, and when the injection molding work is finished, the mold opening is started. Firstly, the Z-shaped shovel head 4 is driven to horizontally move backwards through the oil cylinder 1, and when the Z-shaped shovel head 4 moves backwards along the inclined chute of the front die slide 2, the front die slide 2 is forced to move upwards and drive the front die, namely the movable die, to be away from the fixed die due to the included angle between the inclined chute of the front die slide 2 and the horizontal plane. The stroke is designed, and the pull-up distance of the front die row position 2 is guaranteed to just complete the first-stage demolding. The Z-shaped shovel head 4 saves transverse and longitudinal space and ensures that the front mould line position 2 can normally rise and open the mould. And "Z" style of calligraphy shovel head 4 can also play the effect of screens, sees from the compound die state that there is one section on the shovel machine 3 and pushes down the line position, consequently, when the line position receives the pressure of moulding plastics, pushes down this section of line position on the shovel machine 3 and just plays the auto-lock effect, guarantees that preceding mould line position 2 just can not retreat, has guaranteed the quality and the precision of moulding plastics.
Preferably, the self-locking structure further comprises an ejector pin 5, and the ejector pin 5 forms an included angle with the moving direction of the front mould slide 2. Under the matched molds state, the front mold row position 2 is propped against the fixed mold, and the thimble 5 is also propped against the product 8 on the side edge of the front mold row position 2, so as to play a role in fixing the product 8. When the front mould slide 2 is upwards pulled away, the front mould slide 2 completely leaves the product 8 until the pulling away and retreating complete the mould opening in the first stage, and at the moment, the ejector pin 5 can transversely and horizontally eject the product 8.
Preferably, the thimble 5 is connected with the fixed die through a spring 6. The spring 6 has a spring-out distance of 4mm. And the front mold moving position 2 retreats to complete the mold opening in the first stage, and the parting surface opens the mold after the front mold moving position 2 is separated from the product 8 buckling position. The front and rear molds are opened a distance and the ejector pin 5 will spring open 4mm due to the action of the spring 6. Separated from the inverted small hole.
Preferably, the chute 7 is flared, and the shovel head 4 is inserted from a small end of the flared chute 7. Horn-shaped chute 7 and "Z" style of calligraphy shovel head 4 looks adaptation guarantee "Z" style of calligraphy shovel head 4 horizontal migration simultaneously in chute 7, and paste with chute 7 inner wall constantly and tightly prevent not hard up and cause preceding mould line position 2 to reciprocate voluntarily.
Preferably, the front mold row 2 is in the shape of a parallelogram. The parallelogram is positioned in the inclined groove of the front die, the contact area is large, and the parallelogram is stable and high in strength during sliding.
Preferably, the front mold slide 2 is located in a front mold, and the oil cylinder 1 is fixedly connected with the front mold.
Has the advantages that: the invention provides a self-locking structure for a front mold slide position of an injection mold, which comprises an oil cylinder, the front mold slide position and a shovel machine, wherein one end of the front mold slide position is provided with a chute, a shovel head of the shovel machine is Z-shaped, the shovel head is in sliding insertion connection with the chute, the tail end of the shovel machine is connected with a piston of the oil cylinder, and the piston of the oil cylinder drives the shovel head to move backwards in the chute so as to force the front mold slide position to be separated from a product buckling position. The shovel machine is made into a Z shape, so that the phenomenon that the line position can be retreated due to injection molding pressure under the condition that the area of a product on the line position is large is solved. The thimble scheme has solved when injection molding machine platform restriction mould size, can't do the line position and need save space's problem.
The foregoing is illustrative of the preferred embodiments of the present invention, and is not to be construed as limiting the invention in any way; one of ordinary skill in the art will readily appreciate from the disclosure that the present invention can be practiced as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides an injection mold front mould position of a line self-locking structure, includes the capable position of hydro-cylinder and front mould, its characterized in that: the front mould moving mechanism comprises a front mould moving position, a front mould moving position and a rear mould moving position, wherein one end of the front mould moving position is provided with a chute, a shovel head of the shovel is Z-shaped, the shovel head is in sliding insertion with the chute, the tail end of the shovel is connected with a piston of an oil cylinder, and the piston of the oil cylinder drives the shovel head to move backwards in the chute so as to force the front mould moving position to be separated from a product buckling position; the inclined groove is horn-shaped, and the shovel head is inserted from the small-opening end of the horn-shaped inclined groove;
the self-locking structure further comprises an ejector pin, the ejector pin and the moving direction of the front mold slide are included angles, and the ejector pin is connected with the fixed mold through a spring.
2. An injection mold front mold row position self-locking structure as claimed in claim 1, wherein the spring ejection distance is 4mm.
3. An injection mold front mold slide self-locking structure as claimed in claim 1, wherein the front mold slide is in a parallelogram shape.
4. The injection mold front mold row position self-locking structure as claimed in claim 1, wherein the front mold row position is located in a front mold, and the oil cylinder is fixedly connected with the front mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011353566.4A CN112477008B (en) | 2020-11-27 | 2020-11-27 | Self-locking structure for front mold of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011353566.4A CN112477008B (en) | 2020-11-27 | 2020-11-27 | Self-locking structure for front mold of injection mold |
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| Publication Number | Publication Date |
|---|---|
| CN112477008A CN112477008A (en) | 2021-03-12 |
| CN112477008B true CN112477008B (en) | 2022-12-06 |
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| CN202011353566.4A Active CN112477008B (en) | 2020-11-27 | 2020-11-27 | Self-locking structure for front mold of injection mold |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113400588A (en) * | 2021-07-13 | 2021-09-17 | 深圳市泰兴源科技有限公司 | Better injection mold of shaping quality |
| CN114161625A (en) * | 2021-10-15 | 2022-03-11 | 宁波敏纳模具科技有限公司 | Narrow space motion slider mechanism of front mould |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005104016A (en) * | 2003-09-30 | 2005-04-21 | Mitsubishi Materials Corp | Mold assembly |
| JP3873196B1 (en) * | 2006-07-26 | 2007-01-24 | 東洋ゴム工業株式会社 | Anti-vibration device manufacturing method |
| CN202781692U (en) * | 2012-07-27 | 2013-03-13 | 圣美精密工业(昆山)有限公司 | Slider recession and first-return mechanism |
| CN103252876B (en) * | 2013-04-20 | 2015-08-19 | 宁波方正汽车模具有限公司 | A kind of slotted eye slip key type simple and easy self-locking angled-lift splits ancillary equipment |
| CN105196499B (en) * | 2014-06-19 | 2017-09-19 | 群达模具(深圳)有限公司 | A kind of injection mold slide mould emptier |
| CN105196487B (en) * | 2014-06-25 | 2019-03-12 | 群达模具(深圳)有限公司 | The self-locking method of self-locking structure, front mold core-pulling mold and front mold core-pulling mold |
| CN209257387U (en) * | 2018-12-15 | 2019-08-16 | 浙江誉隆科技发展有限公司 | It is a kind of for manufacturing the mold of electric vehicle turn signal reflector |
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