CN211074555U - Injection mold front mold ejection structure - Google Patents

Abstract

The utility model relates to the field of dies, in particular to an injection die front die ejection structure, which comprises a front die and a rear die, wherein the rear die comprises an upper fixed plate, an upper die holder, a plurality of upper thimbles and two cylinders, the upper fixed plate is positioned right above the upper die holder, all the upper thimbles are arranged between the upper die holder and the upper fixed plate through an upper supporting plate, the upper die holder and the upper fixed plate are fixedly connected through two upper backing plates, all the upper thimbles are fixedly arranged on the upper supporting plate, all the upper thimbles downwards pass through the upper die holder and extend into a die cavity at the bottom of the upper die holder, the two cylinders are respectively arranged at both sides of the upper fixed plate, and output shafts of the two thimbles are downwards connected with the upper supporting plate, the utility model discloses an injection die front die ejection structure of an injection die, the thimbles are driven by the cylinders to assist products to fall off from the fixed die, the yield is effectively improved.

Description

Injection mold front mold ejection structure

Technical Field

The utility model relates to a mould field, concretely relates to injection mold front mould ejection structure.

Background

Moulds (Mule) are used for obtaining various moulds and tools of required products by injection moulding, blow moulding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The element has the name of "industrial mother".

In the process of demoulding a product after mould opening of the existing mould, the product is pulled out from a fixed mould by a movable mould, and because some products are special in shape, a cavity of a top mould is deeper, so that the product is difficult to pull out from the fixed mould.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an injection mold front mould ejection structure.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an injection mold front mould ejection structure, including front mould and back mould, the back mould includes an upper fixed plate, the upper die base, thimble and two cylinders on a plurality of, an upper fixed plate is located the upper die base directly over, all go up the thimble and set up between upper die base and an upper fixed plate through an upper supporting plate, through two upper padding plate fixed connection between upper die base and the upper fixed plate, all go up the thimble and all fix and set up on the upper supporting plate, and all go up the thimble and all pass the upper die base downwards and extend to the die cavity of upper die base bottom, two cylinders set up respectively in the both sides of upper fixed plate, and the two output shaft all is connected with the upper supporting plate downwards.

As an injection mold front mould ejection structure's preferred scheme, two upper cushion blocks all fixed set up in the bottom both ends of upper fixed plate, the top both ends of upper die base and the bottom fixed connection of two upper padding plates, go up the backup pad and lie in between two upper padding plates.

As an injection mold front mould ejection structure's preferred scheme, the both sides of an upper fixed plate all are equipped with the installation breach that is used for holding the cylinder, and the cylinder is in vertical fixed setting and the installation breach that corresponds to the output shaft of cylinder is vertical downwards to be connected with last backup pad.

As an injection mold front mould ejection structure's preferred scheme, the both sides of going up the backup pad all are equipped with a U type breach, all inlay in every U type breach and are equipped with a U type snap ring, and the output shaft of cylinder passes through two nuts and U type snap ring fastening connection.

As an injection mold front mould ejection structure's preferred scheme, the front mould includes the bottom plate, die holder and a plurality of thimble down, the die holder is located the bottom plate directly over, all thimbles set up between die holder and bottom plate through a bottom suspension fagging, through two bottom bolster fixed connection between die holder and the bottom plate, all thimbles are all fixed to be set up in the bottom suspension fagging, the thimble upwards passes the die holder and extends to in the die cavity at die holder top down, be equipped with a plurality of between bottom suspension fagging and the die holder and be used for the spring that resets with thimble down.

The utility model has the advantages that: in the process of opening the mold after injection molding is completed, the front mold moves to prepare for separating a product from a cavity in the front, in the process, two cylinders on the rear mold simultaneously stretch out to drive the upper supporting plate to descend, so that an upper thimble of the upper supporting plate moves downwards to eject the product in the upper mold base downwards, the product is completely separated from the upper mold base by matching with the downward movement of the front mold, the rear mold at the position is a structure provided with the cylinders and the upper thimbles for assisting the product with a deeper cavity to be separated from the fixed mold, and the product is prevented from being damaged in the demolding process. The utility model discloses an injection mold front mould ejection structure drives the thimble through the cylinder at the in-process of die sinking and assists the product to drop from the cover half to the cooperation movable mould can effectually be demolded to the darker product of die cavity, the effectual yields that has improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 shows a side view of the present invention.

Fig. 3 is a cross-sectional view taken along line a-a of fig. 2.

Fig. 4 is a schematic perspective view of the present invention.

Fig. 5 is a perspective view of the rear mold.

In the figure: the device comprises an upper fixing plate 1, an upper die holder 2, an upper thimble 3, a cylinder 4, an upper supporting plate 5, an upper padding plate 6, a U-shaped snap ring 7, a nut 8, a lower fixing plate 9, a lower die holder 10, a lower thimble 11, a lower supporting plate 12, a lower padding plate 13, a spring 14 and a product 15.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, shown injection mold front mould ejection structure, including front mould and back mould, the back mould includes upper fixed plate 1, upper die base 2, a plurality of goes up thimble 3 and two cylinders 4, upper fixed plate 1 is located upper die base 2, all go up thimble 3 and set up between upper die base 2 and upper fixed plate 1 through an upper support plate 5, go up through two upper padding plate 6 fixed connection between upper die base 2 and the upper fixed plate 1, all go up thimble 3 and all fix and set up on upper support plate 5, and all go up thimble 3 and all pass upper die base 2 downwards and extend to the die cavity of upper die base 2 bottom in, two cylinders 4 set up respectively in the both sides of upper fixed plate 1, and both output shafts are all connected with upper support plate 5 downwards.

Two upper cushion blocks are fixedly arranged at two ends of the bottom of the upper fixing plate 1, two ends of the top of the upper die base 2 are fixedly connected with the bottoms of the two upper backing plates 6, and the upper supporting plate 5 is positioned between the two upper backing plates 6. In the process of opening the mold after the injection molding is finished, the front mold moves to prepare for stripping the product 15 from the front cavity, in the process, the two cylinders 4 on the rear mold simultaneously extend out to drive the upper supporting plate 5 to descend, so that the upper ejector pins 3 of the upper supporting plate 5 move downwards, the product 15 in the upper mold base 2 is ejected downwards, and the product 15 is completely stripped from the upper mold base 2 by matching with the downward movement of the front mold.

The both sides of upper fixed plate 1 all are equipped with the installation breach that is used for holding cylinder 4, and cylinder 4 is in vertical fixed setting and the installation breach that corresponds to the output shaft of cylinder 4 is vertical downwards to be connected with last backup pad 5. The cylinders 4 are symmetrically arranged on two sides of the upper fixing plate 1 and used for driving the upper supporting plate 5 to descend, and further driving all the upper thimbles 3 to move downwards until the upper thimbles stretch into the cavity to eject the product 15 downwards.

Go up the both sides of backup pad 5 and all be equipped with a U type breach, all inlay in every U type breach and be equipped with a U type snap ring 7, the output shaft of cylinder 4 passes through two nuts 8 and 7 fastening connections of U type snap ring. The output shaft of the cylinder 4 is conveniently and quickly connected with the U-shaped snap ring 7, so that the output shaft is fixedly connected with the upper supporting plate 5.

The front die comprises a lower fixing plate 9, a lower die holder 10 and a plurality of lower ejector pins 11, wherein the lower die holder 10 is located right above the lower fixing plate 9, all the ejector pins are arranged between the lower die holder 10 and the lower fixing plate 9 through a lower supporting plate 12, the lower die holder 10 is fixedly connected with the lower fixing plate 9 through two lower backing plates 13, all the ejector pins are fixedly arranged on the lower supporting plate 12, the lower ejector pins 11 upwards penetrate through the lower die holder 10 and extend into a cavity at the top of the lower die holder 10, and a plurality of springs 14 for resetting the lower ejector pins 11 are arranged between the lower supporting plate 12 and the lower die holder 10. The front mold is a moving mold in the conventional mold, and during the mold opening process, the rear mold moves and moves upwards through the lower ejector pin 11 to completely remove the product 15.

The working principle is as follows: in the process of opening the mold after injection molding, the front mold moves to prepare for releasing the product 15 from the front cavity, in the process, the two cylinders 4 on the rear mold simultaneously extend out to drive the upper supporting plate 5 to descend, so that the upper ejector pins 3 of the upper supporting plate 5 move downwards, the product 15 in the upper mold base 2 is ejected downwards, the product 15 is completely released from the upper mold base 2 by matching with the downward movement of the front mold, the rear mold is provided with the cylinders 4 and the upper ejector pins 3 on the structure of the transmission fixed mold, and the rear mold is used for assisting the product 15 with the deeper cavity to be released from the fixed mold, and the damage of the product 15 in the demolding process is avoided.

It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims (5)

1. An injection mold front mold ejection structure comprises a front mold and a rear mold, and is characterized in that the rear mold comprises an upper fixing plate (1), an upper mold base (2), a plurality of upper thimbles (3) and two cylinders (4), the upper fixing plate (1) is positioned right above the upper mold base (2), all the upper thimbles (3) are arranged between the upper mold base (2) and the upper fixing plate (1) through an upper supporting plate (5), the upper mold base (2) and the upper fixing plate (1) are fixedly connected through two upper base plates (6), all the upper thimbles (3) are fixedly arranged on the upper supporting plate (5), and all go up thimble (3) and all pass upper die base (2) downwards and extend to the die cavity of upper die base (2) bottom, two cylinders (4) set up respectively in the both sides of upper fixed plate (1) to both output shafts are all connected with last backup pad (5) downwards.

2. An injection mold front mold ejection structure as claimed in claim 1, wherein two upper cushion blocks are fixedly arranged at two ends of the bottom of the upper fixing plate (1), two ends of the top of the upper mold base (2) are fixedly connected with the bottoms of the two upper backing plates (6), and the upper support plate (5) is located between the two upper backing plates (6).

3. An injection mold front mold ejection structure as claimed in claim 2, wherein both sides of the upper fixing plate (1) are provided with mounting notches for accommodating the air cylinders (4), the air cylinders (4) are vertically and fixedly arranged in the corresponding mounting notches, and output shafts of the air cylinders (4) are vertically and downwardly connected with the upper support plate (5).

4. An injection mold front mold ejection structure as claimed in claim 3, wherein the upper support plate (5) is provided with a U-shaped notch at both sides, a U-shaped snap ring (7) is embedded in each U-shaped notch, and the output shaft of the cylinder (4) is fastened and connected with the U-shaped snap ring (7) through two nuts (8).

5. The front mold ejection structure of the injection mold according to claim 1, wherein the front mold comprises a lower fixing plate (9), a lower mold base (10) and a plurality of lower ejector pins (11), the lower mold base (10) is located right above the lower fixing plate (9), all the ejector pins are arranged between the lower mold base (10) and the lower fixing plate (9) through a lower support plate (12), the lower mold base (10) and the lower fixing plate (9) are fixedly connected through two lower backing plates (13), all the ejector pins are fixedly arranged on the lower support plate (12), the lower ejector pins (11) upwards penetrate through the lower mold base (10) and extend into a cavity at the top of the lower mold base (10), and a plurality of springs (14) for resetting the lower ejector pins (11) are arranged between the lower support plate (12) and the lower mold base (10).

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