CN221584407U - Mould of drawing of patterns stage by stage - Google Patents
Mould of drawing of patterns stage by stage Download PDFInfo
- Publication number
- CN221584407U CN221584407U CN202323299500.3U CN202323299500U CN221584407U CN 221584407 U CN221584407 U CN 221584407U CN 202323299500 U CN202323299500 U CN 202323299500U CN 221584407 U CN221584407 U CN 221584407U
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- ejector
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- slide
- ejector rod
- molding
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- 238000000465 moulding Methods 0.000 claims abstract description 55
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a mould for demoulding in stages, which comprises an upper mould, wherein the bottom end of the upper mould is provided with a first cavity; the lower die comprises a base, a forming plate, an ejector plate, a first forming assembly, a second forming assembly and an ejector plate driving piece, wherein the forming plate and the ejector plate are both arranged on the base, the forming plate is positioned above the ejector plate, a second cavity is arranged at the top end of the forming plate, and the second cavity is used for being correspondingly matched with and communicated with the first cavity; the ejector plate can move close to or far away from the forming plate along the height direction of the lower die; the first molding assembly comprises a first ejector rod and a first molding block, the bottom end of the first ejector rod is hinged to the ejector plate, and the top end of the first ejector rod is provided with the first molding block; the second molding assembly comprises a second ejector rod and a second molding block, the bottom end of the second ejector rod is hinged to the ejector plate, the top end of the second ejector rod is provided with the second molding block, and the height of the first ejector rod is lower than that of the second ejector rod; a driving mechanism. The utility model is demoulded in stages.
Description
Technical Field
The utility model relates to the technical field of dies, in particular to a die capable of demolding in stages.
Background
At present, the die mainly comprises an upper die, a lower die and a driving mechanism, the upper die and the lower die can be driven by the driving mechanism to realize die assembly or die opening, when the dies are assembled, the structures of the upper die and the lower die can be matched up and down to form a die cavity, and products are molded in the die cavity by injection molding or pouring and the like in the die cavity. After the product is molded, the mold needs to be opened, and when the mold is opened, the molded fastener on the mold needs to be demolded with the product. In the demolding process, if the molded product is provided with a longer flanging structure, if the molded blocks are simultaneously separated from the product, the product is simultaneously stressed in the length direction of the flanging, and the condition of product strain is easy to occur.
Disclosure of utility model
In order to overcome the defects in the prior art, the utility model aims to provide a mould for demoulding in stages, which can enable a first moulding block and a second moulding block to be demoulded in stages through rotation of a first ejector rod and a second ejector rod.
The utility model adopts the following technical scheme:
a mould for demoulding in stages, which comprises,
The bottom end of the upper die is provided with a first cavity;
the lower die comprises a base, a forming plate, an ejector plate, a first forming assembly, a second forming assembly and an ejector plate driving piece, wherein the forming plate and the ejector plate are both arranged on the base, the forming plate is positioned above the ejector plate, a second cavity is arranged at the top end of the forming plate, and the second cavity is used for being correspondingly matched with and communicated with the first cavity; the ejector plate can move close to or far away from the forming plate along the height direction of the lower die; the first molding assembly comprises a first ejector rod and a first molding block, the bottom end of the first ejector rod is hinged to the ejector plate, and the top end of the first ejector rod is provided with the first molding block; the second molding assembly comprises a second ejector rod and a second molding block, the bottom end of the second ejector rod is hinged to the ejector plate, the second molding block is arranged at the top end of the second ejector rod, and the height of the first ejector rod is lower than that of the second ejector rod; the ejector plate driving piece is used for driving the ejector plate to move along the height direction of the lower die; the first molding block and the second molding block are used for extending into the second cavity after the thimble plate moves close to the molding plate;
The driving mechanism is used for driving the upper die and the lower die to be close to or far away from each other.
Further, the first molding assembly comprises a first sliding seat, a first sliding block is arranged at the bottom end of the first ejector rod, the bottom end of the first ejector rod is hinged to the first sliding block, and the first sliding block is in sliding fit with the first sliding seat; the first sliding seat is connected with the ejector plate in a penetrating way.
Further, a first sliding groove is formed in the first sliding seat, and the first sliding block is slidably installed in the first sliding groove.
Further, the second molding assembly comprises a second sliding seat, a second sliding block is arranged at the bottom end of the second ejector rod, the bottom end of the second ejector rod is hinged to the second sliding block, and the second sliding block is in sliding fit with the second sliding seat; the second sliding seat is connected with the ejector plate in a penetrating way.
Further, a second sliding groove is formed in the second sliding seat, and the second sliding block is slidably installed in the second sliding groove.
Further, the thimble board driving piece comprises a driving cylinder, a cylinder body of the driving cylinder is mounted on the base, and the top end of a piston rod of the driving cylinder is connected with the thimble board.
Further, a connecting block is arranged at the top end of a piston rod of the driving cylinder, a connecting groove is formed in the side edge of the thimble plate, and the connecting block is embedded in the connecting groove and is fixed through a bolt.
Further, protruding blocks are arranged on two sides of the connecting block, grooves are formed in the side walls of the connecting grooves, and the protruding blocks are used for being embedded in the grooves after the connecting block is embedded in the connecting grooves.
Compared with the prior art, the utility model has the beneficial effects that: and when demolding is performed, the condition that demolding is blocked is avoided, and demolding is more flexible. And the height of the first ejector rod is lower than that of the second ejector rod, so that when the ejector plate is downward, the first ejector rod can firstly move downward, and in this stage, the second ejector rod can rotate upwards relative to the ejector plate to be in a state of stretching with the ejector plate, namely, only the first forming block is demoulded from a product, and at the moment, the second ejector rod can not directly move downward, but does a downward rotation trend relative to the ejector plate. When the second stage, the thimble board continues downwards, can pull first ejector pin and second ejector pin downwards simultaneously, and the second shaping piece begins to demold with the product this moment, so, in the drawing of patterns process, first shaping piece and second shaping piece are the drawing of patterns by stages, prevent to demold simultaneously and the condition that the product was strained appears.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model; '
FIG. 2 is a cross-sectional view of the present utility model;
Fig. 3 is a schematic view of a partial structure of the present utility model.
In the figure: 10. an upper die; 20. a base; 30. forming a plate; 40. a needle ejection plate; 50. a driving cylinder; 51. a connecting block; 71. a first molding block; 72. a first ejector rod; 73. a first slider; 81. a second molding block; 82. a second ejector rod; 83. a second slider; 90. and (5) a product.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and detailed description below:
In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
The mold for staged demolding as shown in fig. 1,2 and 3 comprises an upper mold 10, a lower mold and a driving mechanism, wherein the upper mold 10 and the lower mold can be mutually close to or far away from each other under the driving of the driving mechanism, the upper mold 10 and the lower mold are in a mold clamping state after the upper mold 10 and the lower mold are mutually close to each other, and the upper mold 10 and the lower mold are in a mold opening state after the upper mold 10 and the lower mold are mutually far away from each other.
Specifically, a first cavity may be provided at the bottom end of the upper mold 10. The lower die comprises a base 20, a forming plate 30, an ejector plate 40, a first forming assembly, a second forming assembly and an ejector plate 40 driving piece, wherein the forming plate 30 and the ejector plate 40 are both arranged on the base 20, the forming plate 30 is positioned above the ejector plate 40, a second cavity is arranged at the top end of the forming plate 30, and when the upper die 10 and the lower die are in a die clamping state, the second cavity on the forming plate 30 of the lower die can be correspondingly matched with and communicated with the first cavity, and at the moment, the first cavity and the second cavity can be matched to form a product 90 forming cavity.
In addition, the ejector plate 40 may move toward or away from the forming plate 30 in the height direction of the lower die; the first molding assembly comprises a first ejector rod 72 and a first molding block 71, wherein the bottom end of the first ejector rod 72 is hinged to the ejector plate 40, and the top end of the first ejector rod 72 is provided with the first molding block 71. Similarly, the second molding assembly includes a second ejector rod 82 and a second molding block 81, wherein the bottom end of the second ejector rod 82 is hinged to the ejector plate 40, the top end of the second ejector rod 82 is provided with the second molding block 81, and the height of the first ejector rod 72 is lower than that of the second ejector rod 82.
The ejector plate 40 driving member drives the ejector plate 40 to move along the height direction of the lower die, and the first molding block 71 and the second molding block 81 can extend into the second cavity after the ejector plate 40 moves close to the molding plate, and the first molding block 71 and the second molding block 81 can be located at the side of the second cavity and arranged side by side.
On the basis of the above structure, when the mould for carrying out the staged demoulding of the utility model is used, the driving mechanism can drive the upper mould 10 and the lower mould to carry out the mould clamping action when the product 90 is formed, the first cavity of the upper mould 10 and the second cavity on the forming plate 30 of the lower mould are matched to form the forming cavity for forming the product 90 when the mould is clamped, and the ejector pin plate 40 driving piece can drive the ejector pin plate 40 to move upwards, so that the first forming block 71 and the second forming block 81 connected with the first ejector pin 72 and the second ejector pin 82 extend upwards into the second cavity of the forming plate 30, and the injection molding or the pouring action can be carried out through the upper mould 10 or the upper runner of the lower mould, thus the product 90 can be formed in the forming cavity.
Since the first molding block 71 and the second molding block 81 are at the side of the molding cavity, after demolding, the product 90 forms a flanging structure at the positions corresponding to the first molding block 71 and the second molding block 81 arranged side by side.
It should be noted that, because the height of the first ejector rod 72 is lower than the height of the second ejector rod 82, and the first ejector rod 72 and the second ejector rod 82 are both hinged on the ejector plate 40, when the ejector plate 40 moves upward, the ejector plate 40 can drive the first ejector rod 72 and the second ejector rod 82 to move upward at the same time, because the height of the second ejector rod 82 is greater than that of the first ejector rod 72, when the ejector plate 40 continues to move upward, the second forming block 81 of the second ejector rod 82 will firstly push against the top wall of the first cavity, and the ejector plate 40 will drive the first forming block 71 of the first ejector rod 72 to continue to move upward until abutting against the top wall of the first cavity, and when the ejector plate 40 continues to move upward, because the second ejector rod 82 has already abutted against the first cavity, the second ejector rod 82 will rotate downward under the action of the upper die 10 in the continuous upward process, so that the first forming block 71 and the second forming block 81 can be flush with the same plane.
After the molding is completed, demolding is started, and at the moment, the ejector plate 40 moves downwards to drive the first ejector rod 72 and the second ejector rod 82 to be hinged to the ejector plate 40, so that the first ejector rod 72 has a driving trend of swinging up and down during demolding, and demolding is more flexible without the occurrence of demolding blocking during downward demolding. And the first ejector rod 72 is lower than the second ejector rod 82, so when the ejector plate 40 is downward, the first ejector rod 72 can move downward first, and in this stage, the second ejector rod 82 will rotate upward relative to the ejector plate 40 to a state stretched with the ejector plate 40, that is, only the first molding block 71 is demolded from the product 90, and at this time, the second ejector rod 82 will not directly move downward, but will tend to rotate downward relative to the ejector plate 40.
In the second stage, the ejector plate 40 continues to move downwards, and pulls the first ejector rod 72 and the second ejector rod 82 to move downwards simultaneously, and at this time, the second molding block 81 starts to be demolded with the product 90, so that in the demolding process, the first molding block 71 and the second molding block 81 are demolded in stages, and the condition that the product 90 is pulled due to simultaneous demolding is prevented.
It should be noted that the driving mechanism may be realized by a driving cylinder or a cylinder in the prior art.
Further, in this embodiment, the first molding assembly includes a first slider 73 at a bottom end of the first ejector 72, and the bottom end of the first ejector 72 is hinged to the first slider, and the first slider is slidably matched with the first slider 73; the first slider 73 is connected to the thimble plate 40 in a penetrating way. Thus, when the first ejector rod 72 moves up and down, the ejector plate 40 can drive the first sliding seat 73 to move up and down integrally, the first ejector rod 72 has a rotation trend through the first sliding block, so that the first ejector rod 72 moves up and down more flexibly, and the situation of blocking is reduced.
Specifically, the first sliding seat 73 is provided with a first sliding groove, and the first sliding block is slidably installed in the first sliding groove, so that the first sliding block can be slidably installed in the first sliding groove to realize sliding fit between the first ejector rod 72 and the first sliding seat 73.
Further, the second molding assembly comprises a second sliding seat 83, a second sliding block is arranged at the bottom end of the second ejector rod 82, the bottom end of the second ejector rod 82 is hinged to the second sliding block, and the second sliding block is in sliding fit with the second sliding seat 83; the second sliding seat 83 is connected to the thimble plate 40 in a penetrating way. So, when second ejector pin 82 up-and-down motion, thimble board 40 can drive the whole up-and-down motion of second slide 83, and second ejector pin 82 has the rotation trend through the second slider, can make the second ejector pin 82 more nimble when up-and-down motion, reduces the dead condition of card appearance.
Further, the second sliding seat 83 is provided with a second sliding groove, and the second sliding block is slidably installed in the second sliding groove. In this way, the second slider can be slidably mounted in the second chute to realize sliding fit between the second ejector rod 82 and the second slide 83.
Further, the driving member of the ejector plate 40 comprises a driving cylinder 50, the cylinder body of the driving cylinder 50 is mounted on the base 20, and the top end of the piston rod of the driving cylinder 50 is connected with the ejector plate 40, so that the ejector plate 40 can be driven to move up and down through the piston rod of the driving cylinder 50, and power is output through the piston rod of the cylinder, and the power is stable and simple.
More specifically, the connecting block 51 may be further disposed at the top end of the piston rod of the driving cylinder 50, and a connecting groove is disposed at the side edge of the ejector plate 40, when the piston rod of the driving cylinder 50 is assembled with the ejector plate 40, the connecting block 51 is embedded in the connecting groove and fixed by a bolt, and the piston rod of the driving cylinder 50 is assembled with the connecting groove of the ejector plate 40 to limit, so that the assembling surface is larger, and the connecting structure is more stable.
Further, protruding blocks can be further arranged on two sides of the connecting block 51, grooves are formed in the side walls of the connecting grooves, the protruding blocks can be embedded in the grooves after the connecting block 51 is embedded in the connecting grooves, and therefore the connecting block 51 can be further limited by the protruding block grooves, and the assembly structure is more stable.
It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the utility model as defined in the appended claims.
Claims (8)
1. A mold for staged demolding is characterized by comprising,
The bottom end of the upper die is provided with a first cavity;
the lower die comprises a base, a forming plate, an ejector plate, a first forming assembly, a second forming assembly and an ejector plate driving piece, wherein the forming plate and the ejector plate are both arranged on the base, the forming plate is positioned above the ejector plate, a second cavity is arranged at the top end of the forming plate, and the second cavity is used for being correspondingly matched with and communicated with the first cavity; the ejector plate can move close to or far away from the forming plate along the height direction of the lower die; the first molding assembly comprises a first ejector rod and a first molding block, the bottom end of the first ejector rod is hinged to the ejector plate, and the top end of the first ejector rod is provided with the first molding block; the second molding assembly comprises a second ejector rod and a second molding block, the bottom end of the second ejector rod is hinged to the ejector plate, the second molding block is arranged at the top end of the second ejector rod, and the height of the first ejector rod is lower than that of the second ejector rod; the ejector plate driving piece is used for driving the ejector plate to move along the height direction of the lower die; the first molding block and the second molding block are used for extending into the second cavity after the thimble plate moves close to the molding plate;
The driving mechanism is used for driving the upper die and the lower die to be close to or far away from each other.
2. The phased demolding mold of claim 1, wherein the first molding assembly comprises a first slide, a bottom end first slide of the first ejector pin, the bottom end of the first ejector pin hinged to the first slide, the first slide in sliding engagement with the first slide; the first sliding seat is connected with the ejector plate in a penetrating way.
3. The staged stripping die as claimed in claim 2, wherein the first slide is provided with a first runner, the first slide being slidably mounted in the first runner.
4. The phased demolding mold of claim 2, wherein the second molding assembly comprises a second slide, a bottom end second slide of the second ejector pin, the bottom end of the second ejector pin hinged to the second slide, the second slide in sliding engagement with the second slide; the second sliding seat is connected with the ejector plate in a penetrating way.
5. The phased demolding mold of claim 4, wherein the second slide is provided with a second runner, the second slide being slidably mounted in the second runner.
6. The phased demolding mold of any one of claims 1-5, wherein the ejector plate driving member comprises a driving cylinder, the cylinder body of the driving cylinder is mounted on the base, and the top end of a piston rod of the driving cylinder is connected with the ejector plate.
7. The mold for the staged demolding of claim 6, wherein a connecting block is arranged at the top end of a piston rod of the driving cylinder, a connecting groove is arranged at the side edge of the thimble plate, and the connecting block is embedded in the connecting groove and is fixed through a bolt.
8. The phased demolding mold of claim 7, wherein the two sides of the connecting block are provided with protruding blocks, the side wall of the connecting groove is provided with a groove, and the protruding blocks are used for being embedded in the groove after the connecting block is embedded in the connecting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323299500.3U CN221584407U (en) | 2023-12-04 | 2023-12-04 | Mould of drawing of patterns stage by stage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323299500.3U CN221584407U (en) | 2023-12-04 | 2023-12-04 | Mould of drawing of patterns stage by stage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221584407U true CN221584407U (en) | 2024-08-23 |
Family
ID=92408004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323299500.3U Active CN221584407U (en) | 2023-12-04 | 2023-12-04 | Mould of drawing of patterns stage by stage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221584407U (en) |
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2023
- 2023-12-04 CN CN202323299500.3U patent/CN221584407U/en active Active
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