CN210791944U

CN210791944U - Slide secondary core-pulling structure

Info

Publication number: CN210791944U
Application number: CN201921580830.0U
Authority: CN
Inventors: 王则锋
Original assignee: Zhuhai Cpt Precision Mold Co ltd
Current assignee: Zhuhai Cpt Precision Mold Co ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-06-19
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a line position secondary structure of loosing core, including first line position, second line position, mold insert and oblique guide pillar, first line position and mold insert are used for the shaping product, the mold insert slides and wears to establish in first line position and connect the second line position, the oblique guide pillar can drive the second line position and slide along the direction of keeping away from the product, be provided with on the second line position and be used for locking or loosen the locking mechanism of first line position, after the second line position slides one section distance first line position relatively, locking mechanism switches into the state of loosening first line position by the state of locking first line position, first line position can follow the second line position and slide along the direction of keeping away from the product. The utility model discloses can effectively and realize the secondary action of loosing core steadily, stick the line position when having solved the plastics product drawing of patterns that has through-hole, boss or recess because product and the great reason of mould area of contact lead to the product drawing of patterns to loose core, strain, pull the problem broken, have higher practicality, and the limitation is little, can be suitable for the line position secondary of multiple occasion and loose core.

Description

Slide secondary core-pulling structure

Technical Field

The utility model relates to a mould manufacturing technical field especially relates to a slide secondary structure of loosing core.

Background

The plastic mold is a short name for a combined mold used for compression molding, extrusion molding, injection, blow molding and low-foaming molding. The coordination change of the male die, the female die and the auxiliary forming system of the die can process a series of plastic parts with different shapes and sizes.

The slide mechanism is a structure widely applied to plastic molds, and is a mechanism capable of obtaining lateral core pulling or lateral parting and resetting actions to release the product from positions such as back-off, low-fall and the like. The inclined strut pin and the slide block generate relative movement trend by utilizing the molding die opening action, so that the slide block is separated from the barb in two movement modes of the die opening direction and the horizontal direction.

When a plastic product with a through hole, a boss or a groove on the side wall is processed, because the area of a contact part of the product is large, the plastic mold needs to be designed with a core pulling structure to complete lateral core pulling before the product is demolded, so that the product is completely demolded. However, the mode of adopting one-time lateral core-pulling and demolding is easy to stick the slide and causes product deformation, and the structure of adopting slide secondary core-pulling generally utilizes a spring to push against an insert to bump or wear or delay two slides, but the spring of the structure is easy to damage, is easy to lose efficacy and push against a bad mold core, has potential safety hazards, is not beneficial to batch production of molds, is unstable in structure, has no mechanical fixing mode, has synchronous motion risk in two slides, and is difficult to realize secondary core-pulling.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve one of the technical problem that exists among the prior art at least, provide a slide secondary structure of loosing core, its stable in structure, can realize the slide secondary effectively and loose core, glue the problem of slide when solving the product drawing of patterns.

The utility model provides a technical scheme that its technical problem adopted does:

the utility model provides a position structure of loosing core of going again, includes first position of going, the second position of going, mold insert and oblique guide pillar, first position of going and mold insert are used for the shaping product, the mold insert slides and wears to establish in first position of going and connects the second position of going, oblique guide pillar can drive the second position of going and slide along the direction of keeping away from the product, be provided with the locking mechanism who is used for locking or unclamping first position of going on the second position of going, after the second position of going slides a section distance relative to first position of going, locking mechanism is switched into the state of unclamping first position of going by the state of locking first position of going, first position of going can follow the second position of going and slide along the direction of keeping away from the product.

As an improvement of the above technical solution, the locking mechanism includes a shifting block and a limiting member, the shifting block is mounted on the second slide, the first slide can be locked on the limiting member, and the shifting block can drive the limiting member to release the first slide after sliding for a certain distance.

As an improvement of the above technical solution, the shifting block has a first inclined surface, the limiting member has a second inclined surface, the first inclined surface is in sliding fit with the second inclined surface, and the limiting member can move along a sliding direction perpendicular to the second slide to stop or separate from the first slide.

As an improvement of the above technical solution, the limiting member is provided with an elastic resetting member.

As an improvement of the above technical solution, the first slide is fixedly provided with a limit screw, the second slide is slidably sleeved on a rod of the limit screw, and when the second slide slides to a head of the limit screw, the second slide can drive the first slide and the limit screw to move together.

As an improvement of the above technical solution, the second slide has an inclined guide post hole, and the inclined guide post is slidably inserted in the inclined guide post hole.

As an improvement of the above technical scheme, the fixing device further comprises a base and a fixed die, the first line position is arranged on the base in a sliding mode, the base is fixedly installed above the fixed die, and the limiting part penetrates through the base and abuts against the fixed die through the elastic resetting part.

As an improvement of the technical scheme, the base is provided with a pressing block, and one side of the limiting part can be clamped on the pressing block.

As an improvement of the technical scheme, the clamping device further comprises an insert pressing plate, wherein the insert pressing plate is sleeved on the insert and is fixed and attached to the second row position through screws.

The utility model has the advantages that:

the utility model discloses a line position secondary structure of loosing core, its stable in structure, through set up locking mechanism on the line position of second, realize that locking mechanism converts the function of unclamping the state from the lock-out state in the second line position motion process, thereby realize that the line position of second area mold insert takes the mold insert to take off earlier from the product, break away from the action of product behind the first line position, effectively and realize the secondary action of loosing core steadily, there is the through-hole, glue the line position when the plastics product drawing of patterns of boss or recess leads to the product drawing of patterns to loose core because of product and the great reason of mould area of contact, the strain, the problem breaks open, has higher practicality, and the limitation is little, can be suitable for the line position secondary of multiple occasion and loose core.

Drawings

The present invention will be further described with reference to the accompanying drawings and specific embodiments, wherein:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is an exploded view of the embodiment of the present invention;

fig. 3 is a top view of an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along plane A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken along plane B-B of FIG. 3;

fig. 6 is a partially exploded view of an embodiment of the invention;

fig. 7 is a bottom view of the embodiment of the present invention after the stationary mold is hidden;

fig. 8 is a schematic view illustrating the cooperation of the shifting block, the limiting block and the pressing sheet according to the embodiment of the present invention;

fig. 9 is an assembly diagram of the shifting block, the limiting member and the pressing sheet according to the embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to the orientation description, such as the directions of up, down, front, rear, left, right, etc., is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the elements or components must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 9, the slide secondary core pulling structure of the present application includes a first slide 1, a second slide 2, an insert 6 and an inclined guide post 3, where the first slide 1 and the insert 6 are used for molding a product, the insert 6 is slidably disposed in the first slide 1 and connected to the second slide 2, the inclined guide post 3 can drive the second slide 2 to slide along a direction away from the product, a locking mechanism 4 for locking or releasing the first slide 1 is disposed on the second slide 2, and after the second slide 2 slides a distance relative to the first slide 1, the locking mechanism 4 is switched from a state of locking the first slide 1 to a state of releasing the first slide 1, and the first slide 1 can slide along a direction away from the product along with the second slide 2.

It should be understood that the first slide 1 and the insert 6 are used for molding a product, where the molded product refers to a product whose side wall has an irregular shape such as a through hole, a boss or a groove and needs secondary core pulling to ensure stable demolding, and the first slide 1 and the insert 6 are matched with each other to mold an injection molded product.

In the application, the second slide has an oblique guide post hole, and the oblique guide post is slidably inserted in the oblique guide post hole. When the product shaping cooling is finished, the product begins the drawing of patterns, and the user gives the forward effort of oblique guide pillar, because oblique guide pillar and the pore wall contact of the oblique guide pillar hole on the second line position, under the hypotenuse effect of oblique guide pillar, oblique guide pillar can drive second line position 2 and slide to the direction of keeping away from the product.

It can be understood that, when the inclined guide post 3 starts to drive the second slide 2 to slide, because the insert 6 is slidably inserted into the first slide 1 and connected to the second slide 2, and then the insert 6 slides along with the second slide 2, the second slide 2 drives the insert 6 to start sliding, so that the insert 6 is separated from the product, the locking mechanism 4 is always in a state of locking the first slide 1, it is ensured that the first slide 1 is still adhered to the product in this process, and the first slide 1 and the insert 6 are prevented from being separated from the product at the same time to damage the product. When the second row 2 carries the insert 6 to slide for a distance so that the insert 6 is completely separated from the product, the locking mechanism 4 starts to release the first row 1, and the first row 1 can slide along the second row 2 in the direction away from the product so as to be separated from the product. It should be understood that, in the slide secondary core-pulling structure, when the locking mechanism 4 locks the first slide 1, the second slide 2 carries the insert 6 to separate from the product to realize the primary core-pulling, and then the locking mechanism 4 is switched from the state of locking the first slide 1 to the state of releasing the first slide 1, and the second slide 2 carries the first slide 1 to separate from the product, which is the secondary core-pulling. This structure effectively and stably realizes the action of loosing core of secondary, has effectually avoided first line position 1 and mold insert 6 to break away from the product simultaneously and has leaded to sticking the line position when the product drawing of patterns is loosed core, strain, the appearance of the scheduling problem of breaking by pulling.

Further, referring to fig. 2, 4, 6 and 7, in the present application, the locking mechanism 4 includes a shifting block 41 and a limiting member 42, the shifting block 41 is installed on the second row 2, the first row 1 is locked on the limiting member 42, and after the shifting block 41 slides for a certain distance, the limiting member 42 is driven to release the first row 1. It can be understood that, in the present embodiment, the limiting member 42 plays a role of locking or unlocking the first row position 1, the shifting block 41 is fixedly installed at the bottom of the second row position 2 through a screw, and when the second row position 2 slides, the shifting block 41 slides synchronously with the second row position 2.

In addition, further refer to fig. 5 and 6, after second line position 2 slided one end distance and makes mold insert 6 break away from the product completely, in order to be followed second line position 2 and can drive first line position 1 and slide and make first line position 1 break away from the product, in this application, fixed mounting has stop screw 8 on first line position 1, and second line position 2 slides the suit in the pole portion of stop screw 8, and when second line position 2 slided to the head of stop screw 8, second line position 2 can drive first line position 1 and stop screw 8 and move together.

Further, in this embodiment, referring to fig. 4, 5, 8 and 9, the shifting block 41 has a first inclined surface 411, the limiting member 42 has a second inclined surface 421, the first inclined surface 411 is slidably engaged with the second inclined surface 421, and the limiting member 42 can move along a sliding direction perpendicular to the second row 2 to stop or separate from the first row 1.

When the core is firstly pulled, the second slide 2 drives the insert 6 to slide rightwards to separate from the product, in the process, the limiting part 42 is locked and limits the first slide 1 to keep the initial state still, the shifting block 41 slides rightwards synchronously along with the second slide 2 all the time, in the process, the first inclined surface 411 of the shifting block 41 is in sliding fit with the second inclined surface 421 on the limiting part 42, the first inclined surface 411 and the second inclined surface 421 form surface contact, in the process that the second slide 2 drives the insert 6 to slide rightwards to separate from the product, the limiting part 42 continuously moves downwards under the action of the gravity of the second slide 2 and the shifting block 41, when the insert 6 is completely separated from the product, the limiting part 42 is separated from the first slide 1, and therefore the second slide 2 drives the first slide 1 to slide rightwards to separate from the product to realize the second core pulling.

In addition, referring to fig. 8 to 9, in the present application, in order to facilitate the mold re-assembly and mold assembly after the first slide 1 and the insert 6 are completely separated from the product, an elastic reset member 43 is disposed on the limiting member 42.

Referring further to fig. 1 to 5, 8 and 9, in the present embodiment, the device includes a base 7 and a fixed mold 10, the first slide 1 is slidably disposed on the base 7, the base 7 is fixedly mounted above the fixed mold 10, and the limiting member 42 passes through the base 7 and abuts against the fixed mold 10 through an elastic reset member 43. The base 7 is provided with a pressing block 5, and one side of the limiting part 42 can be clamped on the pressing block 5. It should be understood that, in this embodiment, the first row position 1 slides on the slide formed by the base 7 and the fixed mold 10, the elastic reset member 43 is a spring, the spring is disposed below the limiting member 42, the lower end of the spring abuts against the groove on the fixed mold 10, the pressing block 5 is fixedly mounted on the base 7, one side of the pressing block 5 has a convex rib, before the first row position 1 and the insert 6 are separated from the product, the convex rib on the pressing block 5 is clamped in the groove on one side of the limiting member 42, when the limiting member 42 moves downward to be separated from the first row position 1 by the gravity of the second row position 2 and the dial block 41, the pressing block 5 is separated from the limiting member 42, and the convex rib on one side of the pressing block 5 plays a role in preventing the spring from rebounding and then moving upward again when the limiting member 42 moves downward completely, so as to prevent the limiting member 42 from being ejected out by the spring pressure.

In addition, after the first slide 1 and the insert 6 are completely separated from the product, the spring can also prop against the limiting part 42 to return to the initial position, so that the structure is convenient to mount and assemble again.

In addition, referring to fig. 6, the insert pressing plate device further includes an insert pressing plate 9, and the insert pressing plate 9 is sleeved on the insert 6 and fixed and attached to the second row 2 by screws. It should be understood that the insert pressing plate 9 prevents the insert 6 from directly colliding with the side wall of the second row 2 to wear the insert 6, and more effectively ensures the molding of the product.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art.

Claims

1. The utility model provides a slide secondary structure of loosing core which characterized in that: the mold comprises a first slide, a second slide, an insert and an inclined guide post, wherein the first slide and the insert are used for molding a product, the insert is slidably arranged in the first slide in a penetrating manner and is connected with the second slide, the inclined guide post can drive the second slide to slide along the direction far away from the product, a locking mechanism used for locking or releasing the first slide is arranged on the second slide, after the second slide slides for a distance relative to the first slide, the locking mechanism is switched from the state of locking the first slide to the state of releasing the first slide, and the first slide can slide along the direction far away from the product along with the second slide.

2. The slide secondary core pulling structure according to claim 1, characterized in that: the locking mechanism comprises a shifting block and a limiting part, the shifting block is installed on the second line position, the first line position can be locked on the limiting part, and the limiting part can be driven to release the first line position after the shifting block slides for a certain distance.

3. The slide secondary core pulling structure according to claim 2, characterized in that: the shifting block is provided with a first inclined surface, the limiting part is provided with a second inclined surface, the first inclined surface is in sliding fit with the second inclined surface, and the limiting part can move along the sliding direction perpendicular to the second slide to stop or separate from the first slide.

4. The slide secondary core pulling structure according to claim 2, characterized in that: the limiting part is provided with an elastic resetting part.

5. The slide secondary core pulling structure according to any one of claims 1 to 4, wherein: the first slide is fixedly provided with a limiting screw, the second slide is slidably sleeved on the rod part of the limiting screw, and when the second slide slides to the head part of the limiting screw, the second slide can drive the first slide and the limiting screw to move together.

6. The slide secondary core pulling structure according to claim 2, characterized in that: the second slide is provided with an inclined guide post hole, and the inclined guide post is inserted in the inclined guide post hole in a sliding manner.

7. The slide secondary core pulling structure according to claim 4, characterized in that: still include base and cover half, first line position slides and sets up on the base, base fixed mounting is in the top of cover half, the locating part passes the base and resets a butt on the cover half through elasticity.

8. The slide secondary core pulling structure according to claim 7, characterized in that: the base is provided with a pressing block, and one side of the limiting part can be clamped on the pressing block.

9. The slide secondary core pulling structure according to claim 5, characterized in that: the clamping device further comprises an insert pressing plate, wherein the insert pressing plate is sleeved on the insert and fixed and attached to the second slide through screws.