CN212446121U

CN212446121U - Three-piece injection mold

Info

Publication number: CN212446121U
Application number: CN202021902075.6U
Authority: CN
Inventors: 周洪章
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-02-02
Anticipated expiration: 2030-09-03

Abstract

The utility model provides a three-piece injection mold, which comprises a first side mold, a second side mold, a mold core, a sprue bush, a guide pillar, a guide bush and a mold opening power mechanism; the mold core is arranged between the first side mold and the second side mold, and the length direction of the mold core is vertical; the sprue bush is connected with the second side die, and the sprue is arranged on the second side die; the guide pillar is fixedly connected with the first side die, guide sleeves are arranged on the main mounting plate and the second side die, and the guide pillar is connected with the guide sleeves in a left-right sliding mode; the die sinking power mechanism is connected with the first side die and the die core and used for driving the first side die and the die core to approach or depart from each other. The utility model has the advantages of the die sinking distance is little, is suitable for the great tubulose of length of moulding plastics or tube-shape product.

Description

Three-piece injection mold

Technical Field

The utility model belongs to the injection mold field, in particular to three-piece injection mold.

Background

When a tubular or cylindrical product is injection-molded, the male die is used for molding the inner surface of the product, and the female die is used for molding the outer surface of the product. The structure of the injection molding machine in the prior art determines that the opening and closing directions of the female die and the male die are horizontal directions, so that the product is placed horizontally when a tubular or cylindrical product is injected, and the minimum distance between the female die and the male die needs to be greater than the length of the product after the mold is opened, so that the product can be taken out. Therefore, when a tubular or cylindrical product with a large length is injection molded, the mold opening distance is required to be large, so that a large injection molding machine is required to perform injection molding, which increases the difficulty of factory production scheduling. Therefore, the prior art is in need of improvement.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: when a tubular or cylindrical product with larger length is injected, the mold opening distance is large, and the requirement on an injection molding machine is high.

In order to achieve the above purpose, the specific technical solution of the present invention is as follows:

a three-piece injection mold comprises a first side mold, a second side mold, a mold core, a pouring gate sleeve, a guide pillar, a guide sleeve and a mold opening power mechanism; the mold core is arranged between the first side mold and the second side mold, and the length direction of the mold core is vertical; the sprue bush is connected with the second side die, and the sprue is arranged on the second side die; the guide pillar is fixedly connected with the first side die, guide sleeves are arranged on the die core and the second side die, and the guide pillar is connected with the guide sleeves in a left-right sliding mode; the die sinking power mechanism is connected with the first side die and the die core and used for driving the first side die and the die core to approach or depart from each other.

As a further improved technical scheme, the device also comprises a main mounting plate, a mounting column, a connecting plate, a power mechanism, a mandril mounting plate, a mandril and a jacking power mechanism; the mounting column is fixedly connected with the main mounting plate and the connecting plate, the power mechanism is connected with the connecting plate and the mold core, and the mold core is connected with the main mounting plate in a vertical sliding manner; the ejection power mechanism is connected with the connecting plate and the ejector rod plate, the ejection power mechanism drives the ejector rod plate to move up and down relative to the connecting plate, the ejector rod and the ejector rod mounting plate are connected with the ejector rod plate, and the ejector rod is connected with the mold core in a sliding mode.

As a further improved technical scheme, the mould further comprises a push plate, the lower end of the mould core penetrates through the push plate, the push plate is connected with an ejector rod and the mould core, and the ejector rod drives the push plate to move up and down relative to the mould core.

As an optional technical scheme, the mold core is connected with a positioning groove, the second side mold is provided with a positioning block, and the positioning block is connected with the positioning groove in a left-right sliding mode.

As optional technical scheme, be connected with first locating piece and second locating piece on first side form and the second side form respectively, be equipped with arch and recess on first locating piece and the second locating piece respectively, protruding and recess horizontal sliding connection, the quantity of first locating piece and second locating piece is more than two.

According to the selectable technical scheme, the bottom of the first side die is connected with a core-pulling sliding block in a sliding mode, the second side die is connected with an inclined guide shaft, an inclined guide hole is formed in the core-pulling sliding block, and the inclined guide shaft is connected with the inclined guide hole in a sliding mode.

The beneficial effects of the utility model reside in that: the utility model discloses an among the three-piece injection mold, first side form and second side form are used for shaping injection moulding product's lateral wall, and the mold core is used for shaping injection moulding product's inside wall, and during moulding plastics, the length direction of product sets up along upper and lower direction. When the mold is opened, the second side mold is separated from the first side mold by utilizing the mold opening force of the injection molding machine, the mold core moves along with the first side mold, and the second side mold is disconnected with the injection molding product; the mold opening power mechanism separates the mold core from the first side mold, and the first side mold is disconnected from the injection molding product; the injection-molded product is then removed from the mold core. The utility model is suitable for a great product of length of moulding plastics, the utility model discloses a three-piece injection mold is little to the requirement of the die sinking distance between first side form and the second side form, and is low to the requirement of injection molding machine, and the injection molding machine that can the adaptation is of many kinds, and the convenience is in the row's of mill production.

Drawings

Fig. 1 is a front view of the present invention;

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

In the figure: the core mould comprises a first side mould 1, a guide post 12, a guide sleeve 13, a second side mould 2, a sprue bush 21, a mould core 3, a positioning block 311, a push plate 312, a power mechanism 32, a main mounting plate 33, a mounting post 34, a connecting plate 35, an ejector rod mounting plate 36, an ejector rod plate 37, an ejector rod 38, an ejector power mechanism 39, a mould opening power mechanism 4, a first positioning block 5, a second positioning block 6 and a core-pulling slide block 7.

Detailed Description

The invention will be described in detail with reference to the following embodiments.

Fig. 1-2 show an embodiment of the three-piece injection mold of the present invention, specifically:

a three-piece injection mold comprises a first side mold 1, a second side mold 2, a mold core 3, a pouring gate sleeve 21, a guide pillar 12, a guide sleeve 13 and a mold opening power mechanism 4; the mold core 3 is arranged between the first side mold 1 and the second side mold 2, and the length direction of the mold core 3 is vertical; the sprue bush 21 is connected with the second side die 2, and the sprue is arranged on the second side die 2; the guide post 12 is fixedly connected with the first side die 1, guide sleeves 13 are arranged on the main mounting plate 33 and the second side die 2, and the guide post 12 is connected with the guide sleeves 13 in a left-right sliding manner; the die opening power mechanism 4 is connected with the first side die 1 and the die core 3 and is used for driving the first side die 1 and the die core 3 to approach or depart from each other.

The utility model discloses in, first side form 1 and second side form 2 all are used for shaping injection moulding product's lateral wall, and mold core 3 is used for shaping injection moulding product's inside wall, and during moulding plastics, the length direction of product sets up along upper and lower direction, 4 optional hydro-cylinders or cylinders of die sinking power unit etc.. When the mold is opened, the second side mold 2 is separated from the first side mold 1 by utilizing the mold opening force of an injection molding machine, the mold core 3 is fixed relative to the first side mold 1, the second side mold 2 is disconnected from an injection molding product, and a sprue is also disconnected from the injection molding product; the mold opening power mechanism 4 separates the mold core 3 from the first side mold 1, and the first side mold 1 is disconnected from the injection molding product; the injection-molded product is then removed from the core 3 in the up-down direction. The utility model is suitable for a great tubulose or tube-shape product of length of moulding plastics, the utility model discloses a three-piece injection mold is little to the requirement of the die sinking distance between first side mould 1 and the second side mould 2, and after the die sinking, as long as first side mould 1 and second side mould 2 do not take place to interfere with injection moulding product, can take off injection moulding product from mold core 3 promptly, and the die sinking distance is far less than the length of tubulose or tube-shape product. The three-piece injection mold is adopted to produce tubular or cylindrical products with larger length, the requirement on the injection molding machine is low, the types of the injection molding machines which can be adapted are various, and the production arrangement of a factory is convenient.

In the preferred embodiment, the device further comprises a main mounting plate 33, a mounting column 34, a connecting plate 35, a power mechanism 32, a mandril mounting plate 36, a mandril plate 37, a mandril 38 and a jacking power mechanism 39; the mounting column 34 is fixedly connected with the main mounting plate 33 and the connecting plate 35, the power mechanism 32 is connected with the connecting plate 35 and the mold core 3, and the mold core 3 is connected with the main mounting plate 33 in a vertical sliding manner; the ejection power mechanism 39 is connected with both the connecting plate 35 and the ejector rod plate 37, the ejection power mechanism 39 drives the ejector rod plate 37 to move up and down relative to the connecting plate 35, the ejector rod 38 and the ejector rod mounting plate 36 are connected with the ejector rod plate 37, and the ejector rod 38 is connected with the mold core 3 in a sliding manner. In this embodiment, the connecting plate 35 may be disposed above or below the main mounting plate 33, preferably, the connecting plate 35 is disposed above the main mounting plate 33, and a worker takes a part from the upper portion of the three-piece injection mold, so that the mounting height of the three-piece injection mold can be reduced, and the three-piece injection mold can be conveniently mounted. In the embodiment shown in fig. 2, the mold core 3 is driven to move upwards by the power mechanism 32, and the ejector power mechanism 39 drives the ejector rod 38 to move downwards, and the motion is matched to enable the product to move downwards relative to the mold core 3 so as to realize demolding. The ejection power mechanism 39 can be an oil cylinder, an air cylinder and the like, the ejection power mechanism 39 drives the ejector rod 38 to move up and down through the ejector rod plate 37 to eject a product from the mold core 3, so that a worker can conveniently take the product,

further, the mould comprises a push plate 312, the lower end of the mould core 3 penetrates through the push plate 312, the push plate 312 is connected with both the top rod 38 and the mould core 3, and the top rod 38 drives the push plate 312 to move up and down relative to the mould core 3. The wall thickness of the tubular or cylindrical product is thinner, and the use of the push plate 312 to push the product off the mold core 3 is more suitable for thin-walled products than the direct use of the ejector rod 38.

In some embodiments, the mold core 3 is connected with a positioning groove, the second side mold 2 is provided with a positioning block 311, and the positioning block 311 is connected with the positioning groove in a left-right sliding manner. The positioning groove and the positioning block 311 are used for improving the matching precision of the mold core 3 and the second side mold 2.

In some embodiments, the first side mold 1 and the second side mold 2 are respectively connected with a first positioning block 5 and a second positioning block 6, the first positioning block 5 and the second positioning block 6 are respectively provided with a protrusion and a groove, the protrusion and the groove are connected in a sliding manner, and the number of the first positioning block 5 and the number of the second positioning block 6 are more than two. The first positioning block 5 and the second positioning block 6 can be connected to the side walls of the first side die 1 and the second side die 2, and the first positioning block 5 and the second positioning block 6 can improve the positioning accuracy of the first side die 1 and the second side die 2 in the vertical direction and the left-right direction.

Further, the bottom of the first side mold 1 is connected with a core-pulling sliding block 7 in a sliding mode, the second side mold 2 is connected with an inclined guide shaft, an inclined guide hole is formed in the core-pulling sliding block 7, and the inclined guide shaft is connected with the inclined guide hole in a sliding mode. The core-pulling slide block 7 is matched with the mold core 3, core pulling can be respectively carried out from the upper part and the lower part of a product, and the product with a complex upper end structure and a complex lower end structure is formed.

The utility model provides a great tubulose of length or tube-shape product indicate that the numerical value of the length of product is big, and is irrelevant with the radial dimension and the draw ratio of product.

The features of the embodiments and embodiments described above may be combined with each other without conflict.

It should be finally noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a three-piece type injection mold which characterized in that: the mold comprises a first side mold, a second side mold, a mold core, a pouring gate sleeve, a guide pillar, a guide sleeve and a mold opening power mechanism;

the mold core is arranged between the first side mold and the second side mold, and the length direction of the mold core is vertical;

the sprue bush is connected with the second side die, and the sprue is arranged on the second side die;

the guide pillar is fixedly connected with the first side die, guide sleeves are arranged on the die core and the second side die, and the guide pillar is connected with the guide sleeves in a left-right sliding mode;

the die sinking power mechanism is connected with the first side die and the die core and used for driving the first side die and the die core to approach or depart from each other.

2. The three-piece injection mold of claim 1, wherein: the device also comprises a main mounting plate, a mounting column, a connecting plate, a power mechanism, a mandril mounting plate, a mandril and a jacking power mechanism;

the mounting column is fixedly connected with the main mounting plate and the connecting plate, the power mechanism is connected with the connecting plate and the mold core, and the mold core is connected with the main mounting plate in a vertical sliding manner;

the ejection power mechanism is connected with the connecting plate and the ejector rod plate, the ejection power mechanism drives the ejector rod plate to move up and down relative to the connecting plate, the ejector rod and the ejector rod mounting plate are connected with the ejector rod plate, and the ejector rod is connected with the mold core in a sliding mode.

3. The three-piece injection mold of claim 2, wherein: the lower end of the mold core penetrates through the push plate, the push plate is connected with the ejector rod and the mold core, and the ejector rod drives the push plate to move up and down relative to the mold core.

4. The three-piece injection mold of claim 1, wherein: the mold core is connected with a positioning groove, the second side mold is provided with a positioning block, and the positioning block is connected with the positioning groove in a left-right sliding mode.

5. The three-piece injection mold of claim 1, wherein: be connected with first locating piece and second locating piece on first side form and the second side form respectively, be equipped with arch and recess on first locating piece and the second locating piece respectively, protruding and recess horizontal sliding connection, the quantity of first locating piece and second locating piece is more than two.

6. The three-piece injection mold of claim 1, wherein: the bottom sliding connection of first side form has the slider of loosing core, be connected with oblique guide shaft on the second side form, be equipped with oblique guide hole on the slider of loosing core, oblique guide shaft with oblique guide hole sliding connection.