CN217802968U - Core-pulling die - Google Patents

Core-pulling die Download PDF

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Publication number
CN217802968U
CN217802968U CN202122300965.0U CN202122300965U CN217802968U CN 217802968 U CN217802968 U CN 217802968U CN 202122300965 U CN202122300965 U CN 202122300965U CN 217802968 U CN217802968 U CN 217802968U
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Prior art keywords
template
cavity
core
injection molding
contact pin
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CN202122300965.0U
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Chinese (zh)
Inventor
钱建根
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Fujian Huake Mould Technology Co ltd
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Fujian Huake Mould Technology Co ltd
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Priority to CN202122300965.0U priority Critical patent/CN217802968U/en
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Abstract

The utility model discloses a core-pulling mould, which comprises a first mould plate, a second mould plate and a needle-pulling mechanism; forming a cavity in the first template; a mold core is arranged in the second template, and the mold core and the mold cavity form an injection molding cavity for injection molding together; the needle drawing mechanism comprises a contact pin and a driving piece for driving the contact pin to move, the driving piece is located on the side portions of the first template and the second template, the driving piece is connected with the contact pin, and the contact pin is driven to reciprocate in the injection molding cavity. When needing injection moulding product, combine first template and second template earlier mutually, then the driving piece orders about the contact pin and gets into the injection molding cavity that core and cavity formed jointly, then, pours into hot material into the cavity of moulding plastics, if can pour into injection molding materials such as mobile lead material into, wait the injection molding material cooling back, the driving piece orders about the contact pin and keeps away from in the cavity of moulding plastics, and finally, first template and second template are separated from each other, take out the product of making again. The utility model discloses can integrative preparation rectangular hole, do not need secondary operation to raise the efficiency.

Description

Core pulling die
Technical Field
The utility model relates to the technical field of molds, in particular to loose core mould.
Background
When a mold is used for manufacturing a product, for example, a battery cover, a long hole is usually required to be formed on the inner side of the battery cover so as to facilitate the installation and connection of the battery cover.
After the conventional mold is used to make a product, the product is usually subjected to secondary processing, such as drilling to form a long hole, so as to make the product meet the standard. However, the secondary processing of the product is easy to damage the product, the secondary processing precision is low, the processing steps are complicated, the efficiency is low, and the period for manufacturing the product is long.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the above-mentioned technology to a certain extent. Therefore, the utility model aims to provide a loose core mould, it is when moulding plastics, can integrative preparation rectangular hole, does not need secondary operation to raise the efficiency.
In order to achieve the above object, an embodiment of the present invention provides a core pulling mold, including a first mold plate, a second mold plate, and a needle pulling mechanism;
forming a cavity in the first template;
a mold core is arranged in the second mold plate, and the mold core and the mold cavity jointly form an injection molding cavity for injection molding;
the needle drawing mechanism comprises a contact pin and a driving piece for driving the contact pin to move, the driving piece is located on the side portions of the first template and the second template, the driving piece is connected with the contact pin, and the contact pin is driven to reciprocate in the injection molding cavity.
According to the utility model discloses loose core mould when the product that needs to mould plastics, earlier combine first template and second template mutually, then the driving piece orders about the contact pin and gets into in the cavity of moulding plastics that core and die cavity formed jointly, then, pour into the hot material into toward moulding plastics the cavity, if can pour into injection molding such as mobile lead material into, wait to mould plastics after the cooling, the driving piece orders about the contact pin and keeps away from in the cavity of moulding plastics, and at last, first template and second template separate mutually, take out the product that makes again.
In addition, according to the utility model discloses a loose core mould that above-mentioned embodiment provided can also have following additional technical characteristics:
further, set up the stem in the cavity of moulding plastics, set up the perforation in the stem, the driving piece orders about the contact pin and inserts or wear out the perforation.
Further, the stem includes installation department and column body portion, and the installation department is installed on first template, column body portion and installation department body coupling, and the column body portion is located the cavity of moulding plastics, and the perforation runs through column body portion.
Further, the core column comprises a plurality of first core columns and a plurality of second core columns which are arranged side by side with the first core columns, and the contact pins comprise first contact pins and second contact pins which are arranged side by side with the first contact pins; the first pins are inserted into or passed out of the through holes of the first core legs, and the second pins are inserted into or passed out of the through holes of the second core legs.
Furthermore, the front end of the driving piece is provided with a guide insertion assembly, the guide insertion assembly can be partially inserted into the injection molding cavity, and the contact pin is inserted into the injection molding cavity through the guide insertion assembly.
Furthermore, the guide insertion assembly comprises a sliding chute, a sliding block, a driving block and an insertion rod; the spout is fixed on the second template, and slider slidable sets up on the spout, sets up the chute on the slider, and drive block one end is connected with first template, and in the drive block other end inserted the chute, the drive block was close to the second template and orders about the slider and be close to the cavity of moulding plastics, and the drive block is kept away from the second template and orders about the slider and keep away from the cavity of moulding plastics, and the inserted bar sets up on the slider to remove along with the slider removal, the inserted bar can insert or break away from the cavity of moulding plastics.
Furthermore, a groove is formed in the sliding block, an elastic piece is arranged in the groove, one end of the elastic piece abuts against the groove bottom of the groove, and the other end of the elastic piece is used for abutting against the side wall of the first template.
Furthermore, guide holes are formed in the inserted link and the sliding block, and the driving piece drives the inserted pin to penetrate through the guide holes and then to be inserted into the injection molding cavity.
Further, the lateral part of first template and second template sets up the mounting bracket, and the driving piece is fixed on the mounting bracket, and the expansion end and the contact pin of driving piece are connected.
Further, a channel for cooling is provided in the pin.
Drawings
Fig. 1 is a schematic structural view of a core pulling mold according to an embodiment of the present invention;
FIG. 2 is an exploded view of a core pulling mold according to an embodiment of the present invention;
FIG. 3 is a schematic view of the connection between the needle withdrawing mechanism and the guiding insert assembly according to the embodiment of the present invention;
FIG. 4 is an exploded view of another angle of the needle withdrawing mechanism according to the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a battery cover according to an embodiment of the present invention.
Description of the reference symbols
A first template 1 and a cavity 11;
second die plate 2, core 21, stem 22, through hole 221, mounting portion 222, column portion 223, first stem 224, second stem 225;
the needle drawing mechanism 3, a contact pin 31, a first contact pin 311, a second contact pin 312 and a driving piece 32;
a battery cover 4, a connecting column 41 and a strip hole 42;
the guide insertion assembly 5, the sliding chute 51, the sliding block 52, the inclined groove 521, the groove 522, the driving block 53, the insertion rod 54 and the elastic piece 55;
and a mounting frame 6.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1 to 5, a core pulling mold according to an embodiment of the present invention includes a first mold plate 1, a second mold plate 2, and a needle drawing mechanism 3; forming a cavity 11 in the first template 1; a core 21 is arranged in the second template 2, and the core 21 and the cavity 11 jointly form an injection molding cavity for injection molding.
The needle drawing mechanism 3 comprises a contact pin 31 and a driving piece 32 for driving the contact pin 31 to move, the driving piece 32 is positioned on the side parts of the first template 1 and the second template 2, the driving piece 32 is connected with the contact pin 31, and the contact pin 31 is driven to reciprocate in an injection molding cavity.
When a product needs to be injection-molded, the first template 1 and the second template 2 are combined with each other, then the driving part 32 drives the contact pin 31 into an injection molding cavity formed by the mold core 21 and the mold cavity 11 together, then hot materials are injected into the injection molding cavity, if the flowing injection molding materials such as lead materials can be injected, after the injection molding materials are cooled, the driving part 32 drives the contact pin 31 to be away from the injection molding cavity, wherein the driving part 32 can drive the driving cylinder, finally, the first template 1 and the second template 2 are separated from each other, and the manufactured product is taken out. Some of the smaller volume products may be removed by a robot arm and some of the larger volume products may be removed manually by hand.
In this example, the product is a battery cover 4, but may be other types of injection molded products.
Optionally, a core column 22 is arranged in the injection molding cavity, a through hole 221 is arranged in the core column 22, the driving member 32 drives the pin 31 to be inserted into or penetrate out of the through hole 221, that is, the core column 22 is arranged in the injection molding cavity, so that the battery cover 4 is provided with the connecting column 41, and a connecting hole is axially formed in the connecting column 41, so as to facilitate the installation and connection of the battery cover 4.
In some examples, stem 22 includes a mounting portion 222 and a body portion 223, mounting portion 222 is mounted on first mold plate 1, body portion 223 is integrally connected to mounting portion 222, body portion 223 is located in the injection mold cavity, and through hole 221 extends through body portion 223. The stem portion 223 may be detachably provided on the mounting portion 222, thereby facilitating mounting and replacement of the stem 22.
As an example, the stem 22 includes a plurality of first stems 224 and a plurality of second stems 225 disposed side by side with the plurality of first stems 224, and the pin 31 includes a first pin 311 and a second pin 312 disposed side by side with the first pin 311; the first pin 311 is inserted into or passed out of the through holes 221 of the plurality of first legs 224 and the second pin 312 is inserted into or passed out of the through holes 221 of the plurality of second legs 225. In this example, the first core legs 224 are provided in three, the first pins 311 are sequentially inserted into or passed out of the through holes 221 of the three first core legs 224, the second core legs 225 are also provided in three, and the second pins 312 are sequentially inserted into or passed out of the through holes 221 of the three second core legs 225.
In some examples, the front end of the driving member 32 is provided with a guiding insertion assembly 5, the guiding insertion assembly 5 can be partially inserted into the injection molding cavity, and the contact pin 31 is inserted into the injection molding cavity through the guiding insertion assembly 5. Wherein, the guiding insertion component 5 comprises a chute 51, a slide block 52, a driving block 53 and an insertion rod 54; the sliding groove 51 is fixed on the second mold plate 2, the sliding block 52 is slidably arranged on the sliding groove 51, the sliding block 52 is provided with an inclined groove 521, and the inclined groove 521 is inclined in a direction that the inclined groove 521 gradually gets away from the injection molding cavity from the first mold plate 1 to the second mold plate 2. One end of the driving block 53 is connected with the first template 1, the other end of the driving block 53 is inserted into the inclined groove 521, the driving block 53 is close to the second template 2 to drive the sliding block 52 to be close to the injection molding cavity, the driving block 53 is far away from the second template 2 to drive the sliding block 52 to be far away from the injection molding cavity, the inserted link 54 is arranged on the sliding block 52 and moves along with the movement of the sliding block 52, and the inserted link 54 can be inserted into or separated from the injection molding cavity.
When the mold is opened, namely the first mold plate 1 moves towards the direction far away from the second mold plate 2, the first mold plate 1 drives the driving block 53 to be far away from the second mold plate 2, the driving block 53 is far away from the second mold plate 2 to drive the slide block 52 to move along the sliding groove 51, and the slide block 52 is far away from the injection molding cavity, so that the inserted bar 54 can be conveniently moved out from the product body, and the product demolding is convenient. When the die is closed, that is, when the first die plate 1 moves towards the direction close to the second die plate 2, the first die plate 1 drives the driving block 53 to be close to the second die plate 2, the driving block 53 is close to the second die plate 2 to drive the slide block 52 to move along the slide slot 51, and the slide block 52 is close to the injection cavity, so that the insertion rod 54 can be conveniently inserted into the injection cavity, and a product can be conveniently formed.
In this example, a groove 522 is provided in the slider 52, an elastic member 55 is provided in the groove 522, one end of the elastic member 55 abuts against the bottom of the groove 522, and the other end of the elastic member 55 is used for abutting against the side wall of the first template 1. The elastic member 55 may be a compression spring, and the compression spring compresses the slider 52 to move away from the injection molding cavity, so that the mold opening is smoother.
To facilitate the insertion of the pin 31, guide holes are provided in the rod 54 and the slider 52, and the driving member 32 drives the pin 31 to pass through the guide holes and then to be inserted into the injection molding cavity.
In order to facilitate the installation of the driving member 32, the side portions of the first template 1 and the second template 2 are provided with a mounting frame 6, the driving member 32 is fixed on the mounting frame 6, and the movable end of the driving member 32 is connected with the contact pin 31.
In this example, the cooling channel for cooling is arranged in the pin 31, a cooling nozzle can be arranged on the side of the pin 31, the cooling nozzle is communicated with the cooling channel, and cold water enters or is separated from the pin 31 through the cooling nozzle, so that the product is cooled conveniently, and the formed elongated hole 42 has higher precision.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.

Claims (10)

1. A loose core mould is characterized in that: comprises a first template, a second template and a needle drawing mechanism;
forming a cavity in the first template;
a mold core is arranged in the second mold plate, and the mold core and the mold cavity jointly form an injection molding cavity for injection molding;
the needle drawing mechanism comprises a contact pin and a driving piece for driving the contact pin to move, the driving piece is located on the side portion of the first template and the side portion of the second template, the driving piece is connected with the contact pin, and the contact pin is driven to perform reciprocating motion in the injection molding cavity.
2. The core back mold of claim 1, wherein: set up the stem in the cavity of moulding plastics, set up the perforation in the stem, the driving piece orders about the contact pin and inserts or wear out the perforation.
3. The core back mold of claim 2, wherein: the stem comprises an installation part and a stem body part, the installation part is installed on the first template, the stem body part is integrally connected with the installation part, the stem body part is positioned in the injection molding cavity, and the through hole penetrates through the stem body part.
4. The core back mold of claim 3, wherein: the core column comprises a plurality of first core columns and a plurality of second core columns arranged side by side with the first core columns, and the contact pins comprise first contact pins and second contact pins arranged side by side with the first contact pins; the first pins are inserted into or passed out of the through holes of the first core legs, and the second pins are inserted into or passed out of the through holes of the second core legs.
5. The core back mold of claim 1, wherein: the front end of the driving piece is provided with a guide insertion assembly, the guide insertion assembly can be partially inserted into the injection molding cavity, and the contact pin is inserted into the injection molding cavity through the guide insertion assembly.
6. The core back mold of claim 5, wherein: the guide insertion assembly comprises a sliding chute, a sliding block, a driving block and an insertion rod; the spout is fixed on the second template, and slider slidable sets up on the spout, sets up the chute on the slider, and drive block one end is connected with first template, and in the drive block other end inserted the chute, the drive block is close to the second template and orders about the slider and is close to the cavity of moulding plastics, and the drive block is kept away from the second template and orders about the slider and keep away from the cavity of moulding plastics, and the inserted bar setting is on the slider to remove along with the slider, the inserted bar can insert or break away from the cavity of moulding plastics.
7. The core back mold of claim 6, wherein: a groove is formed in the sliding block, an elastic piece is arranged in the groove, one end of the elastic piece abuts against the groove bottom of the groove, and the other end of the elastic piece is used for abutting against the side wall of the first template.
8. The core back mold of claim 7, wherein: guide holes are formed in the inserted link and the sliding block, and the driving piece drives the contact pin to penetrate through the guide holes and then to be inserted into the injection molding cavity.
9. The core back mold of claim 1, wherein: the lateral part of first template and second template sets up the mounting bracket, and the driving piece is fixed on the mounting bracket, and the expansion end and the contact pin of driving piece are connected.
10. The core back mold of claim 1, wherein: channels for cooling are provided in the pins.
CN202122300965.0U 2021-09-23 2021-09-23 Core-pulling die Active CN217802968U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122300965.0U CN217802968U (en) 2021-09-23 2021-09-23 Core-pulling die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122300965.0U CN217802968U (en) 2021-09-23 2021-09-23 Core-pulling die

Publications (1)

Publication Number Publication Date
CN217802968U true CN217802968U (en) 2022-11-15

Family

ID=83958359

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122300965.0U Active CN217802968U (en) 2021-09-23 2021-09-23 Core-pulling die

Country Status (1)

Country Link
CN (1) CN217802968U (en)

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