CN107662310B

CN107662310B - Continuous forming molding method

Info

Publication number: CN107662310B
Application number: CN201610597447.0A
Authority: CN
Inventors: 陈法胜
Original assignee: JUGANG MACHINERY CO Ltd
Current assignee: JUGANG MACHINERY CO Ltd
Priority date: 2016-07-27
Filing date: 2016-07-27
Publication date: 2020-02-11
Anticipated expiration: 2036-07-27
Also published as: CN107662310A

Abstract

The invention provides a molding processing method for continuous molding, which respectively molds and molds macromolecular raw materials with different shapes or raw material compositions through a plurality of molds synchronously, so that the raw material with a first composition is molded and molded into a first molded body in a second mold chamber, the first molded body is positioned in a first mold chamber, and the raw material with a second composition is positioned in the first mold chamber and molded into a second molded body together with the first molded body by the first mold chamber. The method of the present invention is simple, easy to control the same mold clamping stroke and high in production efficiency.

Description

Continuous forming molding method

Technical Field

The present invention relates to polymer molding technology, and more particularly to a molding method for continuous molding.

Background

The technology of providing the mold chamber space required for the polymer molding process by the first mold chamber and the second mold chamber formed by the multi-layer mold respectively therein is well known, but the same mold still has different specific process applications, especially when different parts of the same product are formed by polymer materials with different compositions, the method thereof still has other problems, for example:

as shown in fig. 1, a raw material having different compositions is injected into a first cavity 2 and a second cavity 3 of a mold 1, respectively, to be formed into blanks 2a and 3a, and then the formed blanks 2a and 3a are placed in a third cavity 4 to be molded into a finished product.

As shown in fig. 2, a raw material with a specific composition is injected into the first mold chamber 2, and after a corresponding shaped blank 2b is molded, the blank 2b is positioned in the third mold chamber 4, and another raw material with a specific composition is injected into the third mold chamber 4, and then combined with the existing blank 2b and molded into a finished product.

In order to reduce the number of mold clamping mechanisms required for mold clamping, the first, second and third mold chambers 2, 3, 4 are usually located in the same multi-layer mold 1, and the same mold clamping mechanism can be used to provide mold clamping force, and the specific technical content is to utilize the respective parts of the first mold chamber 2 and the second mold chamber 3 to form the third mold chamber 4 after being butted with each other, i.e. as shown in fig. 1, the first mold chambers 2 are respectively formed between the upper mold sheet 1a and the middle mold sheet 1b of the mold 1, the second mold chamber 3 is formed between the middle mold sheet 1b and the lower mold sheet 1c of the mold 1, and after the middle mold sheet 1b is pulled out, the third mold chamber 4 is formed between the upper mold sheet 1a and the lower mold sheet 1 c.

The technical content of forming the third mold chamber 4 by the extracted middle mold piece 1b is limited by the use of the same mold clamping mechanism, but before and after the extraction of the middle mold piece 1b, the mold clamping stroke distance of the mold 1 is different, so that the mold clamping mechanism unnecessarily increases the variable in control, and the stroke after the extraction of the middle mold piece 1b is too long, thereby delaying the manufacturing process.

Disclosure of Invention

The main object of the present invention is to provide a molding method for sequential molding, which allows different molded bodies having a sequential relationship in the manufacturing process to be sequentially molded and allows different molded bodies to be simultaneously molded.

In order to achieve the purpose, the invention adopts the following technical scheme:

a molding method for continuous molding includes such steps as synchronously molding the first and the second molded bodies, and making the first molded body in the second cavity while making the second molded body in the first cavity.

The method can be implemented by a die set, wherein the die set is provided with two first dies; a second mold, which can be abutted against any one of the first molds and is clamped, and a first mold chamber is formed between the clamped first molds; the two third dies can be abutted against the other first die which is not abutted against the second die, so that a second die chamber is formed between the third dies which are abutted against each other and the first die.

When the first mold is located at the first position, each first mold is respectively abutted with the second mold and a corresponding third mold, and when the first mold is located at the second position, each first mold is respectively abutted with the second mold and a corresponding other third mold.

The first forming body and the second forming body are respectively formed by the first die in the first position in a molding mode, after the first forming body is retained and the second forming body is removed, the first die is moved to the second position, and the retained first forming body is located in the first die chamber.

Wherein each first mold linearly reciprocates between the first position and the second position.

And each first die is displaced between the first position and the second position along the horizontal direction.

The second die is arranged between the third dies and is separated from the third dies by a die station distance.

Wherein each first mold is spaced apart from each other by a distance equal to the mold station pitch.

The invention has the advantages that:

the molding method for continuous molding of the invention is simpler and more convenient in implementation, is easy to control the same mold clamping stroke, and has obvious effect on improving the manufacturing efficiency.

Drawings

Fig. 1 is a schematic diagram of a known technique.

Fig. 2 is a schematic diagram of another known technique.

FIG. 3 is a schematic diagram of a preferred embodiment of the present invention, showing steps a to e.

FIG. 4 is a schematic diagram of a preferred embodiment of the present invention, showing steps f through j.

Detailed Description

Referring to fig. 3 and 4, the following molding method according to a preferred embodiment of the present invention is mainly characterized in that the first molded

bodies

11a, 11b and the second molded

bodies

12a, 12b having a following molding sequence are molded simultaneously and separately, and a mold set 20 composed of multiple mold models is used for the following molding method.

The die set 20 has two plate-like

first dies

21a, 21b, which are juxtaposed on the same horizontal plane and spaced from each other by a fixed die holder distance d, a plate-like second die 22 located above each first

die

21a, 21b, two plate-like

third dies

23a, 23b located on both sides of the second die 22 and spaced from the second die 22 by a distance equal to the die holder distance d, respectively;

wherein each of the

first molds

21a, 21b is adapted to be abutted against and clamped against the second mold 22 and the corresponding

third mold

23a, 23b in opposite directions, respectively, and a

first mold chamber

24a, 24b is formed between the

first mold

21a, 21b and the second mold 22 abutted against and clamped against each other, and a

second mold chamber

25a, 25b is formed between the

first mold

21a, 21b and the

third mold

23a, 23b abutted against and clamped against each other, respectively, so that the raw material of the first composition is positioned in the

second mold chamber

25a, 25b, the raw material of the second composition is molded into the first molded

article

11a, 11b by the molding of the

second mold chamber

25a, 25b, and the first molded

article

11a, 11b is positioned in the

first mold chamber

24a, 24b, and the raw material of the second composition is molded into the second molded article 12a by the

first mold chamber

24a, 24b together with the first molded

article

11a, 11b, 12 b.

The molding method using the mold set 20 for the successive molding includes the steps of:

a. first molding of the first molded body 11a

Each of the

first molds

21a, 21b is positioned at a first position, and a portion of the mold set 20 is closed to close the second mold chamber 25a, and the first composition raw material is injected into the second mold chamber 25a by an external supply device such as an injection device, so that the raw material is molded into the first molded article 11a by the second mold chamber 25 a.

b. Opening mould

The entire mold set 20 is located at a mold opening position, and the first molded body 11a molded in the step a is attached to the first mold 21 a.

c. First time mode exchange

Horizontally traversing the

first dies

21a, 21b from the first position to a second position by a die holder distance d while maintaining the die holder distance d between the

first dies

21a, 21b, and synchronously displacing the first molded body 11a with the first dies 21 a;

when the mold is located at the first position, the first mold 21b corresponds to the second mold 22, the first mold 21a corresponds to the third mold 23a, the first mold 21b and the third mold 22 a are abutted against each other and clamped, and the first mold chamber 24a and the second mold chamber 25a are formed between the first mold 21a and the third mold 23b, respectively, and the first mold 21b and the third mold 21b are abutted against each other and clamped, respectively, and the first mold chamber 24b and the second mold chamber 25b are formed between the first mold 21a and the third mold 23b, respectively.

d. Die assembly

The

first molds

21a and 21b are positioned at the second position, and are respectively abutted against and clamped with the corresponding second mold 22 and third mold 23b in opposite directions, and a first mold chamber 24b and a second mold chamber 25b are respectively formed therebetween, wherein the first molded body 11a is accommodated in the space of the first mold chamber 24 b.

e. Injecting material

The raw material of the first composition is injected into the second mold chamber 25b by an external supply means such as an injection molding machine to mold the first molded body 11b, and the raw material of the second composition is additionally injected into the first mold chamber 24b, and is molded by the first mold chamber 24b into the second molded body 12a together with the first molded body 11a existing in the first mold chamber 24 b.

f. Opening mould

The mold set 20 is opened, the second molded body 12a is taken out and the first molded body 11b is attached to the first mold 21 b.

g. Second time of die exchange

The

first molds

21a and 21b are horizontally and transversely reset from the second position to the first position, and the first molded body 11b is synchronously driven to correspond to the position of the second mold 22.

h. Die assembly

The

first molds

21a and 21b are positioned at the first position, and are respectively abutted against and clamped with the corresponding second mold 22 and third mold 23a, and a first mold chamber 24a and a second mold chamber 25a are respectively formed therebetween, wherein the first molded body 11b is accommodated in the space of the first mold chamber 24 a.

i. Injecting material

The raw material of the first composition is injected into the second mold chamber 25a by an external supply means such as an injection molding machine to remould-mold the first molded body 11a, and the raw material of the second composition is additionally injected into the first mold chamber 24a to be molded by the first mold chamber 24a into the second molded body 12b together with the first molded body 11b existing in the first mold chamber 24 a.

j. After opening the mold and taking out the second molded body 12b, steps b to i are repeated.

Therefore, the present invention can synchronously and respectively perform the molding operation of the first blank and the second blank through the above steps e and i, and the

first mold

21a and 21b reciprocally moves between the first position and the second position, so that the first molded body 11b molded in the step e is used as a part of the second molded body 12b molded in the step i, and the first molded body 11a molded in the step i is used as a part of the second molded body 11a molded in the step e, thereby providing the requirements for each other, so that the molding method for the subsequent molding is simpler and easier to be implemented than the prior art, and the control of the same mold clamping stroke is easy to be performed, and the manufacturing efficiency is also significantly improved.

The above description is of the preferred embodiment of the present invention and the technical principles applied thereto, and it will be apparent to those skilled in the art that any changes and modifications based on the equivalent changes and simple substitutions of the technical solution of the present invention are within the protection scope of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The molding processing method of the continuous molding is characterized in that a mold set is used;

the die set is provided with two first dies; a second mold, which can be abutted against any one of the first molds and is clamped, and a first mold chamber is formed between the clamped first molds; two third dies, either of which can be abutted against the other first die which is not abutted against the second die, so as to form a second die chamber between the third die and the first die which are abutted against each other;

and, a first molding process and a second molding process are performed synchronously, wherein:

the first molding procedure is to make a raw material with a first composition positioned in the second mold chamber and molded into a first molded body by the second mold chamber;

the second molding procedure is that after the first molding body is positioned in the first mold chamber, a second composition raw material is positioned in the first mold chamber and is molded into a second molding body together with the first molding body by the first mold chamber, specifically, each first mold can move between a first position and a second position, when positioned at the first position, each first mold is respectively abutted with the second mold and a corresponding third mold, and when positioned at the second position, each first mold is respectively abutted with the second mold and a corresponding other third mold.

2. The molding method of sequential molding according to claim 1, wherein each of the first molds is molded with the first molded body and the second molded body respectively in the first position, and after the first molded body is retained and the second molded body is removed, each of the first molds is displaced to the second position so that the retained first molded body is located in the first mold chamber.

3. The method of sequentially molding as claimed in claim 2, wherein each of said first molds is linearly and reciprocally displaced between said first position and said second position.

4. The method of sequentially molding as claimed in claim 3, wherein each of said first molds is horizontally displaced between said first position and said second position.

5. The method of claim 2, 3 or 4, wherein the second mold is disposed between the third molds and spaced apart from the third molds by a mold station spacing.

6. The method of sequentially molding as claimed in claim 5, wherein each of said first molds is spaced apart from each other by a distance equal to the pitch of said mold stations.