CN215921163U - Mold with lower mold capable of being tripped in advance - Google Patents

Abstract

The utility model discloses a die with a lower die capable of being tripped in advance, which comprises an upper die assembly and a lower die assembly, wherein the lower die assembly can leave the upper die assembly along a first direction when the die is opened, the upper die assembly comprises an A plate and an upper die core embedded in the A plate, the lower die assembly comprises a B plate, a lower die core, a base plate, a tripping insert, square iron and a limiting bolt, the base plate is arranged between the B plate and the square iron and fixed on the square iron, the base plate can leave the B plate along the first direction, the lower die core is embedded in the B plate, the tripping insert can be slidably inserted into the lower die core and the B plate along the first direction, the fixed end of the insert of the tripping insert is fixedly connected with the base plate, the tripping end of the insert of the tripping insert is matched with the upper die core and the lower die core to form an injection molding cavity during injection molding, the screw end of the limiting bolt is fixed in the B plate, and the base plate drives the B plate to leave the A plate through the head of the limiting bolt. The die with the lower die capable of being tripped in advance prevents the product from being damaged by pulling when the plate A and the plate B are separated, prolongs the service life of the die, and improves the production efficiency and the product yield.

Description

Mold with lower mold capable of being tripped in advance

Technical Field

The utility model belongs to the technical field of manufacturing of complex and precise dies, and particularly relates to a die with a lower die capable of being tripped in advance.

Background

The mold is an indispensable important tool in injection molding, and the injection molding is a processing method for injecting hot-melt plastic materials into a closed cavity with a required shape in the mold at a high speed, opening the mold to eject a solidified plastic product after the plastic materials are cooled and solidified, so as to obtain a molded product. The injection molding processing method has the characteristics of low molding cost, short molding period, simple molding process, easiness in molding of plastic products with complex shapes and the like, so that the injection molding processing method is widely applied to the field of plastic products.

Injection moulding product is various and complicated, and to the plastic products of some internal designs have the buckle, drop off through the design top structure to one side in general mould, but the top of one side dropout is generally just conveniently carried out after A board and B board separation, and the inside buckle of lower mould need drop off in advance before A board and B board separation for a bit, detain the position for the product and leave out the deformation space, otherwise draw easily the product when A board and B board separate.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problem, the utility model provides a die with a lower die capable of being tripped in advance, which is used for solving the problem that a product is pulled when an A plate and a B plate are separated because the buckle at the lower die in the product is difficult to trip in advance.

A lower die capable of being tripped in advance comprises an upper die assembly and a lower die assembly, wherein the lower die assembly leaves the upper die assembly along a first direction when the die is opened, the upper die assembly comprises an A plate and an upper die core, the upper die core is embedded in the A plate, the lower die assembly comprises a B plate, a lower die core, a base plate, a tripping insert, square iron and a limiting bolt, the base plate is arranged between the B plate and the square iron and fixed on the square iron, the base plate can leave the B plate along the first direction, the lower die core is embedded in the B plate, the tripping insert is slidably inserted in the lower die core and the B plate along the first direction, the tripping insert comprises an insert fixing end and an insert tripping end, the fixing end is fixedly connected with the base plate, the insert tripping end is matched with the upper die core and the lower die core to form an injection molding cavity during injection molding, the screw end of the limiting bolt is fixed in the B plate, and the head of the limiting bolt is slidably arranged in the square iron along the first direction, when the head of the limiting bolt slides to be attached to the base plate, the base plate drives the plate B to leave the plate A through the limiting bolt.

Optionally, four limiting bolts are arranged and are respectively and uniformly distributed on the B plate.

Optionally, the lower die assembly further comprises a floating spring, the floating spring is arranged in the plate B, one end of the floating spring is arranged on the backing plate in a propping mode, and the floating spring is in a compressed state before the plate A and the plate B are separated.

Preferably, the floating spring is sleeved on the limiting bolt.

Preferably, four floating springs are arranged and are uniformly distributed on the B plate respectively.

Optionally, the surface of the backing plate is provided with an insert hole, the insert hole is a blind hole, and the fixed end of the insert is fixed in the insert hole.

Preferably, the fixed end of the insert is detachably fixed in the insert hole by a fixing bolt.

Preferably, the insert fixing end is cylindrical, and two fixing bolts are symmetrically arranged on the end face of the insert fixing end.

Optionally, the lower die assembly further comprises a nylon mold locker fixed on the surface of the B plate, the nylon mold locker is arranged between the A plate and the B plate, and the nylon mold locker is inserted into the A plate during mold closing.

Preferably, a plurality of nylon mold locking devices are arranged and uniformly arranged on the surface of the B plate respectively.

Compared with the prior art, the die with the lower die capable of being tripped in advance provided by the utility model has the advantages that the base plate capable of moving downwards in advance before the A plate and the B plate are separated is additionally arranged, so that the tripping insert fixed on the base plate is driven to be separated from a product in advance, a deformation space is reserved for a product buckling position, the product is prevented from being damaged by pulling when the A plate and the B plate are separated, the overall structure is simplified, the design is ingenious, the cost is reduced, the service life of the die is prolonged, and the production efficiency and the product yield are improved.

Drawings

Fig. 1 is a schematic structural view of a mold with a lower mold capable of being released in advance at a viewing angle according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a mold with a lower mold capable of being released in advance at another view angle according to an embodiment of the present invention.

Detailed Description

In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 and 2, a mold 100 with a lower mold capable of being released in advance includes an upper mold assembly 1 and a lower mold assembly 2, wherein the lower mold assembly 1 is separated from the upper mold assembly 2 along a first direction X when the mold 100 is opened.

The upper die assembly 1 comprises an A plate 11 and an upper die core 12, and the upper die core 12 is embedded in the A plate 11.

The lower die assembly 2 comprises a B plate 21, a lower die core 22, a backing plate 23, a tripping insert 24 and square iron 25, wherein the backing plate 23 is arranged between the B plate 21 and the square iron 25 and fixed on the square iron 25, the backing plate 23 can leave the B plate 21 along a first direction X, the lower die core 22 is embedded in the B plate 21, the tripping insert 24 is slidably inserted in the lower die core 22 and the B plate 21 along the first direction X, the tripping insert 24 comprises an insert fixing end 241 and an insert tripping end 242, the insert fixing end 241 is fixedly connected with the backing plate 23, and the insert tripping end 242 is matched with the upper die core 12 and the lower die core 22 to form an injection molding cavity during injection molding. The release insert 24 can leave a deformation space for the product release after being pulled away. The lower die assembly 2 further comprises a limiting bolt 26, the screw end of the limiting bolt 26 is fixed in the B plate 21, the head of the limiting bolt 26 is slidably arranged in the square iron 25 along the first direction X, and when the head of the limiting bolt 26 slides to be attached to the backing plate 23, the backing plate 23 drives the B plate 21 to leave the a plate 11 through the limiting bolt 26, so that a product is released. Therefore, the maximum separation distance between the B plate 21 and the backing plate 23 can be limited, the A plate 11 and the B plate 21 can be separated in time after tripping is ensured, and the die sinking space is saved.

Optionally, four limiting bolts 26 are provided and are respectively and uniformly distributed on the B plate 21. This makes it possible to further stabilize the separation of the a plate 11 and the B plate 21.

Optionally, the lower die assembly 2 further includes a floating spring 27, the floating spring 27 is disposed in the B plate 21, one end of the floating spring 27 abuts against the backing plate 23, and the floating spring 27 is in a compressed state before the a plate 11 and the B plate 21 are separated. The floating spring 27 in a compressed state can better ensure that the backing plate 23 is separated from the B plate 21 in advance.

Preferably, the floating spring 27 is sleeved on the limit bolt 26. This arrangement can save layout space and can make the expansion and contraction of the floating spring 27 more stable.

Preferably, four floating springs 27 are provided, respectively, evenly distributed on the B plate 21. This allows the backing plate 23 and the B plate 21 to be more evenly stressed and more stable when separated.

Optionally, an insert hole 231 is formed in the surface of the backing plate 23, the insert hole 231 is a blind hole, and the insert fixing end 241 is fixed in the insert hole 231. The arrangement can not only stably fix the tripping insert 24, but also save the arrangement space.

Preferably, the insert fixing end 241 is detachably fixed in the insert hole 231 by a fixing bolt 243. The arrangement can facilitate the maintenance of the tripping insert.

Preferably, the insert fixing end 241 has a cylindrical shape, and two fixing bolts 243 are symmetrically provided on the end surface of the insert fixing end 241. This arrangement prevents rotation of the trip insert 24 during tripping.

Optionally, the lower mold assembly 2 further includes a nylon mold locker 28 fixed on the surface of the B plate 21, the nylon mold locker 28 is disposed between the a plate 11 and the B plate 21, and the nylon mold locker 28 is inserted into the a plate 11 during mold closing. This arrangement increases the resistance to separation between the a and B plates 11, 21, and facilitates better control of the sequence of separation of the plates during mold opening.

Preferably, a plurality of nylon clamps 28 are uniformly disposed on the surface of the B plate 21. This arrangement makes it possible to more equalize the separation resistance everywhere between the a plate 11 and the B plate 21, and the separation process is more stable.

The tripping process of one embodiment of the utility model is as follows:

after the injection molding of the mold 100 is completed, the backing plate 23 and the square iron 25 are separated from the B plate 21 along the first direction X, at this time, the releasing insert 24 fixed on the backing plate 23 is separated from the buckling position of the product along the first direction X along with the backing plate 23, a deformation space is reserved for the product, when the backing plate 23 is separated to be attached to the head of the limit bolt 26, the backing plate 23 drives the B plate 21 to start to leave the a plate 11 through the limit bolt 26 fixed on the B plate, and the product is separated from the buckling position after being deformed by using the deformation space left by the releasing insert 24.

According to the die with the lower die capable of being tripped in advance, the base plate capable of moving downwards in advance before the plate A and the plate B are separated is additionally arranged, so that the tripping insert fixed on the base plate is driven to be disengaged from a product in advance, a deformation space is reserved for the product buckling position, the product is prevented from being damaged by pulling when the plate A and the plate B are separated, the overall structure is simple, the design is ingenious, the cost is reduced, the service life of the die is prolonged, and the production efficiency and the product yield are improved.

The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the utility model. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.

Claims (10)

1. A die with a lower die capable of being tripped in advance is characterized by comprising an upper die component and a lower die component, wherein the lower die component leaves the upper die component along a first direction when the die is opened;

the upper die assembly comprises an A plate and an upper die core, and the upper die core is embedded in the A plate;

the lower die component comprises a B plate, a lower die core, a base plate, a tripping insert, square iron and a limiting bolt, wherein the base plate is arranged between the B plate and the square iron and is fixed on the square iron, the backing plate can leave the plate B along the first direction, the lower mold core is embedded in the plate B, the tripping insert can be inserted in the lower mold core and the plate B along the first direction in a sliding way, the tripping insert comprises an insert fixed end and an insert tripping end, the insert fixed end is fixedly connected with the backing plate, the mold insert trip end is matched with the upper mold core and the lower mold core to form an injection molding cavity during injection molding, the screw end of the limit bolt is fixed in the plate B, the head of the limiting bolt is slidably arranged in the square iron along the first direction, and when the head of the limiting bolt slides to be attached to the backing plate, the backing plate drives the plate B to leave the plate A through the limiting bolt.

2. The mold for releasing the lower mold in advance as claimed in claim 1, wherein four limiting bolts are provided and are respectively and uniformly distributed on the B plate.

3. The mold of claim 1, wherein the lower mold assembly further comprises a floating spring disposed in the B plate and having one end thereof abutting the backing plate, wherein the floating spring is under compression before the a plate and the B plate are separated.

4. The mold for releasing the lower mold in advance as claimed in claim 3, wherein the floating spring is sleeved on the limit bolt.

5. The mold for releasing the lower mold in advance as claimed in claim 3, wherein four floating springs are provided and are uniformly distributed on the B plate.

6. The mold of claim 1, wherein the pad has an insert hole formed on a surface thereof, the insert hole being a blind hole, and the fixed end of the insert being fixed in the insert hole.

7. The apparatus of claim 6, wherein the insert-fixing end is detachably fixed in the insert hole by a fixing bolt.

8. The apparatus as claimed in claim 7, wherein the insert-fixing end is cylindrical, and two fixing bolts are symmetrically provided on the end surface of the insert-fixing end.

9. The mold of claim 1, wherein the lower mold assembly further comprises a nylon clamp secured to the surface of the B plate, the nylon clamp being disposed between the a plate and the B plate, the nylon clamp being inserted into the a plate during closing.

10. The mold of claim 1, wherein the nylon mold locker is provided in plurality and uniformly disposed on the surface of the B plate.

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