CN217373199U - Easy-to-replace mold convenient for proofing - Google Patents
Easy-to-replace mold convenient for proofing Download PDFInfo
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- CN217373199U CN217373199U CN202221079757.0U CN202221079757U CN217373199U CN 217373199 U CN217373199 U CN 217373199U CN 202221079757 U CN202221079757 U CN 202221079757U CN 217373199 U CN217373199 U CN 217373199U
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Abstract
The utility model discloses an easy change mould of conveniently drawing a design, it includes movable mould core and thimble board, movable mould core includes mold core body and bottom plate, mold core body and bottom plate are connected fixedly, be equipped with thimble through-hole and buffer hole in the mold core body, the thimble through-hole is the shoulder hole, wherein be the macropore of shoulder hole towards bottom plate one side, the opposite side is the aperture of shoulder hole then, be equipped with the mold core thimble in the thimble through-hole, the mold core thimble contains spring holder and needle body, be equipped with the reset spring between the macropore of spring holder and shoulder hole, the needle body stretches into in the aperture after passing the reset spring, be equipped with a plurality of via holes on the bottom plate, the via hole corresponds the setting with thimble through-hole and buffer hole; the ejector plate is provided with driving ejector pins with the same number as the via holes, and the driving ejector pins are in sliding fit with the via holes. The utility model discloses the easy change mould of the convenient proof that obtains has practiced thrift the manufacturing cost of mould in the die sinking, has improved the efficiency and the security that the mould was changed in the production of making a proof.
Description
Technical Field
The utility model relates to a mould, especially a convenient easy change mould of drawing a design.
Background
The injection mold generally comprises a movable mold and a fixed mold, wherein the movable mold comprises a movable mold fixing plate, an ejector plate, mold core ejector pins, a movable mold plate, guide pillars, a movable mold core and other structures, wherein the mold core ejector pins on the ejector plate penetrate through the movable mold core to eject a product, and the basic structure can be referred to as an inclined ejection structure of the fixed mold of the plastic mold in chinese patent 201711151971.6.
In traditional injection moulding production, behind the design preparation mould, need take a design to confirm the effect and the product quality of mould, in actual production, need take a design sometimes to the mould of many products, however because the mould core thimble hole on the movable mould core is the one-to-one relation with the mould core thimble in the movable mould in the traditional mould, consequently must carry out whole change to the mould in taking a design, steel mould quality is big, it is very inconvenient and have the potential safety hazard to dismantle the transport, there is very big influence to the efficiency of taking a design, especially to the less injection molding of some structural differences, it is very big extravagant to change a whole set of mould more.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of the prior art and providing an easy-to-replace mould which can improve the efficiency and is convenient to sample and can be quickly disassembled and assembled.
In order to achieve the purpose, the utility model relates to an easy change mould of conveniently making a design, it includes movable mould core and thimble board, movable mould core includes mold core body and bottom plate, and mold core body and bottom plate are connected fixedly, are equipped with thimble through-hole and buffer hole in the mold core body, the thimble through-hole is the shoulder hole, and wherein be the macropore of shoulder hole towards bottom plate one side, the opposite side then is the aperture of shoulder hole, the buffer hole is with setting up the blind hole on one side of mold core body towards the bottom plate, be equipped with the mold core thimble in the thimble through-hole, the mold core thimble contains spring holder and needle body, be equipped with the reset spring between the macropore of spring holder and shoulder hole, the needle body passes the reset spring and stretches into in the aperture, be equipped with a plurality of via holes on the bottom plate, the via hole corresponds to setting with thimble through-hole and buffer hole; the ejector plate is provided with driving ejector pins with the same number as the via holes, and the driving ejector pins are in sliding fit with the via holes.
In order to accelerate the forming, a cooling water channel is arranged in the mold core body of the movable mold core and is configured around the mold cavity.
In order to facilitate installation, the ejector pin of the mold core is prevented from falling out, and the area of the through hole is smaller than the projection area of the spring seat towards the direction of the through hole.
In order to limit the stroke of the driving ejector pins and avoid damage to the movable mold core, the easy-to-replace mold convenient for proofing further comprises a movable mold plate, the movable mold plate is provided with a needle hole, the driving ejector pins on the ejector plate penetrate through the needle hole, a stroke limiting block is arranged between the movable mold plate and the ejector plate, and the stroke limiting block is fixed on the movable mold plate or the ejector plate; the stroke limiting block is used for limiting the moving stroke of the ejector pin plate so as to limit the moving distance of the driving ejector pin, and when the stroke limiting block is fixed on the movable template, a gap is formed between the stroke limiting block and the ejector pin plate; if the stroke limiting block is fixed on the ejector plate, a gap exists between the stroke limiting block and the movable template, so that the moving stroke of the ejector plate is ensured.
In order to facilitate the disassembly of the movable mold core, the easy-to-replace mold facilitating sample making further comprises a movable mold plate, the movable mold core is installed on the movable mold plate, and a mold core unloading structure is arranged between the movable mold core and the movable mold plate.
The utility model discloses the easy change mould of the convenient proof that obtains through the structure that changes current movable mould core, has practiced thrift the manufacturing cost of mould in the die sinking, has improved the efficiency and the security that the mould was changed in the production of making a proof.
Drawings
FIG. 1 is a schematic structural view of an embodiment 1 of the easy-to-replace mold for convenient proofing according to the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a drawing showing an assembly relationship between a thimble through hole and a mold core thimble in an easily replaceable mold for facilitating proofing;
FIG. 4 is a schematic diagram of a movable mold core in an easily replaceable mold for facilitating proofing after replacement;
FIG. 5 is a half-sectional view of the die core body in embodiment 2 of the easy-to-replace die for convenient proofing of the present invention;
FIG. 6 is a schematic structural view of embodiment 2;
fig. 7 is a schematic diagram of the easy-to-replace mold of the present invention in the embodiment 2 of the mold for easy sample making.
In the figure: the movable mould core comprises a movable mould core 1, an ejector plate 2, a mould core body 3, a bottom plate 4, a mould cavity 5, an ejector pin through hole 6, a buffer hole 7, a mould core ejector pin 8, a reset spring 9, a via hole 10, a driving ejector pin 11, a fixed mould core 12, a cooling water channel 13, a movable mould plate 14, a needle hole 15, a stroke limiting block 16, a screw hole 17, a long screw 18, a large hole 60, a small hole 61, a spring seat 80 and a needle body 81.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Example 1:
the easy-to-replace mold for convenient proofing described in this embodiment, as shown in fig. 1 to fig. 3, comprises a movable mold core 1 and an ejector plate 2, the movable mold core 1 comprises a mold core body 3 and a bottom plate 4, the mold core body 3 and the bottom plate 4 are fixedly connected, a thimble through hole 6 and a buffer hole 7 are arranged in the mold core body 3, the thimble through hole 6 is a stepped hole, wherein one side facing the bottom plate 4 is provided with a large hole 60 of a stepped hole, the other side is provided with a small hole 61 of the stepped hole, the buffer hole 7 is a blind hole arranged on one side of the mould core body 3 facing the bottom plate 4, a mould core thimble 8 is arranged in the thimble through hole 6, the mould core thimble 8 comprises a spring seat 80 and a needle body 81, a return spring 9 is arranged between the spring seat 80 and the large hole 60 of the stepped hole, the needle body 81 passes through the return spring 9 and then extends into the small hole 61, a plurality of through holes 10 are formed in the bottom plate 4, and the through holes 10 are arranged corresponding to the thimble through holes 6 and the buffer holes 7; the ejector plate 2 is provided with driving ejector pins 11 with the same number as the via holes 10, and the driving ejector pins 11 are in sliding fit with the via holes 10.
The mold core body 3 deviates from 4 one sides of bottom plate and forms the die cavity 5 that is used for injection moulding jointly with fixed mold core 12, when needing to change the mould, only needs to change movable mold core 1 and the fixed mold core 12 that corresponds to change another section of movable mold core 1 that has the aforementioned characteristic of this embodiment equally, but 5 different and corresponding fixed mold cores 12 of die cavity, can realize the quick replacement of mould. As shown in fig. 1 and 4, the difference of the cavities 5 may cause the buffer holes 7 and the thimble through holes 6 on the new movable mold core 1 to be partially interchanged, that is, at the same position, the buffer holes 7 are on the old movable mold core 1, while the thimble through holes 6 may be on the new movable mold core 1, but because the total number and distribution positions of the buffer holes 7 and the thimble through holes 6 are not changed, the movable mold plate, the thimble plates 2, the driving thimbles 11 and other mold structures do not need to be replaced.
In the actual working process, the movable mold core 1 is installed on the movable mold plate, when the movable mold is separated from the fixed mold, and demolding is carried out, the ejector pin plate 2 is pushed by external force to move towards the movable mold core 1, at the moment, the ejector pins 11 are driven to move along with the ejector pin plate 2, penetrate through the through holes 10 and extend into the buffer holes 7 or the ejector pin through holes 6 corresponding to the through holes, the end parts of the ejector pins 11 extending into the ejector pin through holes 6 push the spring seats 80 of the mold core ejector pins 8, so that the mold core ejector pins 8 overcome the elastic force of the return springs 9, and the pin bodies 81 of the mold cores are driven to penetrate through the small holes 61 and eject out towards the outside of the movable mold core 1, and therefore, plastic parts and waste materials are ejected so as to achieve the purpose of demolding.
The easy change mould of the convenient proof that this embodiment provided through the structure that changes current movable mould core 1, has practiced thrift the manufacturing cost of mould in the die sinking, has improved the efficiency and the security that the mould was changed in the production of proofings.
Example 2:
in the easy-to-replace mold for convenient proofing described in this embodiment, as shown in fig. 5, in addition to the features described in embodiment 1, in order to speed up the molding, a cooling water channel 13 is provided in the core body 3 of the movable core 1, and the cooling water channel 13 is disposed around the cavity 5.
In order to facilitate installation and avoid falling-out of the mold core thimble 8, the area of the through hole 10 is smaller than the projection area of the spring seat 80 towards the direction of the through hole 10; of course, the mode of limiting the mold core thimble 8 in the form of shielding by the bottom plate 4 in this example is only a preferred scheme, and a person skilled in the art can completely limit the mold core thimble 8 in other modes, for example, the mold core thimble 8 is limited in the ejector rod through hole 6 by adhering two ends of the return spring 9 to the spring seat 80 and the ejector rod through hole 6 respectively.
In order to limit the stroke of the driving thimble 11, as shown in fig. 6, damage to the movable mold core 1 is avoided, the easy-to-replace mold convenient for proofing further comprises a movable mold plate 14, a pinhole 15 is arranged on the movable mold plate 14, the driving thimble 11 on the thimble plate 2 penetrates through the pinhole 15, a stroke limiting block 16 is arranged between the movable mold plate 14 and the thimble plate 2, and the stroke limiting block 16 is fixed on the thimble plate 2; in practical use, the ejector pin plate 2 pushes the driving ejector pin 11 to move upwards, and when the stroke limiting block 16 moves to abut against the movable die plate 14, the ejector pin plate 2 cannot move further, so that collision between the driving ejector pin 11 and the movable die core 1 is avoided.
Example 3:
the easy-to-replace mold facilitating proofing described in this embodiment is characterized in that, in order to limit the stroke of the driving thimble 11 and avoid damaging the movable mold core 1, the easy-to-replace mold facilitating proofing further includes a movable mold plate 14, a pinhole 15 is arranged on the movable mold plate 14, the driving thimble 11 on the thimble plate 2 passes through the pinhole 15, a stroke limit block 16 is arranged between the movable mold plate 14 and the thimble plate 2, and the stroke limit block 16 is fixed on the movable mold plate 14, as shown in fig. 7.
In order to facilitate the disassembly of the movable mold core 1, as shown in fig. 7, the mold easy to replace and convenient for proofing further includes a movable mold plate 14, the movable mold core 1 is installed on the movable mold plate 14, and a mold core unloading structure is arranged between the movable mold core 1 and the movable mold plate 14, in this embodiment, the mold core unloading structure is a screw hole 17 formed in the movable mold core 1, the screw hole 17 penetrates through the movable mold core 1, when the movable mold core 1 is replaced, a long screw 18 is screwed into the screw hole 17, so that the end of the long screw 18 abuts against the movable mold plate 14 and continuously rotates along with the long screw 18, and the movable mold core 1 is separated from the movable mold plate 14 under the action of lifting force provided by thread fit, thereby completing the unloading of the movable mold core 1.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the equivalent embodiments by utilizing the above disclosed technical contents without departing from the technical scope of the present invention, but all the modifications, changes and changes of the technical spirit of the present invention made to the above embodiments are also within the scope of the technical solution of the present invention.
Claims (5)
1. The easy-to-replace mold convenient for proofing comprises a movable mold core (1) and an ejector plate (2), and is characterized in that the movable mold core (1) comprises a mold core body (3) and a bottom plate (4), the mold core body (3) and the bottom plate (4) are fixedly connected, an ejector through hole (6) and a buffer hole (7) are arranged in the mold core body (3), the ejector through hole (6) is a stepped hole, one side of the ejector through hole facing the bottom plate (4) is a large hole (60) of the stepped hole, the other side of the ejector through hole is a small hole (61) of the stepped hole, the buffer hole (7) is a blind hole arranged on one side of the mold core body (3) facing the bottom plate (4), a mold core ejector pin (8) is arranged in the ejector through hole (6), the mold core ejector pin (8) comprises a spring seat (80) and an ejector pin (81), a reset spring (9) is arranged between the spring seat (80) and the large hole (60) of the stepped hole, the needle body (81) penetrates through the reset spring (9) and then extends into the small hole (61), the bottom plate (4) is provided with a plurality of through holes (10), and the through holes (10) are arranged corresponding to the ejector pin through hole (6) and the buffer hole (7); the ejector pin plate (2) is provided with driving ejector pins (11) with the same number as the via holes (10), and the driving ejector pins (11) are in sliding fit with the via holes (10).
2. The easy-to-replace mold for convenient proofing according to claim 1, wherein a cooling water channel (13) is arranged in the mold core body (3) of the movable mold core (1), and the cooling water channel (13) is configured around the mold cavity (5).
3. A ready-to-draw-out and easy-to-replace die as claimed in claim 1 or 2, wherein the area of the through hole (10) is smaller than the projected area of the spring seat (80) towards the direction of the through hole (10).
4. The easy-to-replace mold for convenient proofing according to claim 1 or 2, characterized by further comprising a movable mold plate (14), wherein the movable mold plate (14) is provided with a needle hole (15), the driving thimble (11) on the thimble plate (2) penetrates through the needle hole (15), a stroke stopper (16) is arranged between the movable mold plate (14) and the thimble plate (2), and the stroke stopper (16) is fixed on the movable mold plate (14) or the thimble plate (2).
5. The easy-to-replace mold convenient for proofing according to claim 1 or 2, characterized by further comprising a movable mold plate (14), wherein the movable mold core (1) is mounted on the movable mold plate (14), and a mold core unloading structure is arranged between the movable mold core (1) and the movable mold plate (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221079757.0U CN217373199U (en) | 2022-05-07 | 2022-05-07 | Easy-to-replace mold convenient for proofing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221079757.0U CN217373199U (en) | 2022-05-07 | 2022-05-07 | Easy-to-replace mold convenient for proofing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217373199U true CN217373199U (en) | 2022-09-06 |
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ID=83085269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221079757.0U Active CN217373199U (en) | 2022-05-07 | 2022-05-07 | Easy-to-replace mold convenient for proofing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217373199U (en) |
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2022
- 2022-05-07 CN CN202221079757.0U patent/CN217373199U/en active Active
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