CN220075449U - Double-inward-protruding shell product nondestructive ejection die structure - Google Patents
Double-inward-protruding shell product nondestructive ejection die structure Download PDFInfo
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- CN220075449U CN220075449U CN202222933714.0U CN202222933714U CN220075449U CN 220075449 U CN220075449 U CN 220075449U CN 202222933714 U CN202222933714 U CN 202222933714U CN 220075449 U CN220075449 U CN 220075449U
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- flat ejector
- ejection
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- 238000000034 method Methods 0.000 claims abstract description 8
- 238000001746 injection moulding Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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Abstract
The utility model relates to a double-inward-protruding shell product nondestructive ejection die structure, which comprises a top plate, an upper die plate, a lower die plate, die legs and a bottom plate which are sequentially stacked from top to bottom, wherein a lower die core is arranged in the lower die plate, and the double-inward-protruding shell product nondestructive ejection die structure further comprises a first flat ejector rod, a second flat ejector rod and an inward-supporting ejector sleeve; the bottom ends of the first flat ejector rod and the second flat ejector rod are connected with the ejector pin plate, the first flat ejector rod and the second flat ejector rod penetrate through the lower die plate and the lower die core, the top end of the first flat ejector rod corresponds to a forming groove on a forming seat on the lower die core, and the top end of the second flat ejector rod corresponds to a U-shaped groove on the forming seat; the inner supporting top sleeve comprises a movable ejection sleeve, an inner needle and a needle block. The utility model can carry out injection molding on the shell product with the double inward convex structures, improves the ejection structure, avoids deformation in the ejection process of the shell product, and ensures that the shell product can be ejected and blanked without damage.
Description
Technical Field
The utility model relates to a die, in particular to a nondestructive ejection die structure for a double-inward-convex shell product.
Background
The inside of the shell product is provided with a double inward convex structure, and the two inward convex structures are respectively in a shape of a line and a U. Because the length of two interior protruding structures is longer, therefore in the die sinking blanking process after the completion of moulding plastics, when the ejector pin was ejecting shell product, because interior protruding structure has frictional force with the die cavity inner wall, so under the effect of dragging of frictional force, the junction of two interior protruding structures and shell product takes place deformation very easily, leads to the shell product to warp to scrap.
Disclosure of Invention
The purpose of the utility model is that:
the nondestructive ejection die structure for the double-inward-protruding shell product is designed, the shell product with the double-inward-protruding structure can be subjected to injection molding, the ejection structure is improved, deformation of the shell product in the ejection process is avoided, and the shell product can be subjected to nondestructive ejection and blanking.
In order to achieve the above object, the present utility model provides the following technical solutions:
the nondestructive ejection die structure for the double-inward-protruding shell product comprises a top plate, an upper die plate, a lower die plate, die legs and a bottom plate which are sequentially stacked from top to bottom, wherein a lower die core is arranged in the lower die plate, and an ejector plate is arranged on the inner side of each die leg; the device also comprises a first flat ejector rod, a second flat ejector rod and an inner supporting ejector sleeve; the bottom ends of the first flat ejector rod and the second flat ejector rod are connected with the ejector pin plate, the first flat ejector rod and the second flat ejector rod penetrate through the lower die plate and the lower die core, the top end of the first flat ejector rod corresponds to a forming groove on a forming seat on the lower die core, and the top end of the second flat ejector rod corresponds to a U-shaped groove on the forming seat; the inner supporting top sleeve comprises a movable ejection sleeve, an inner needle and a needle block, wherein the inner needle is positioned inside the movable ejection sleeve, and the inner supporting top sleeve is positioned on two sides of the first flat ejector rod.
Further, the first flat ejector rod and the second flat ejector rod are vertically arranged, and the upper parts of the first flat ejector rod and the second flat ejector rod are in flat structures; the top of the first flat ejector rod is specifically located at the bottom of a forming groove, and the top of the second flat ejector rod is located at the middle bottom of the U-shaped forming groove.
Further, the bottom end of the movable ejection sleeve of the inner support ejection sleeve is connected with the ejector plate, the top end of the movable ejection sleeve is positioned in a hole on the forming seat, and the length of the inner needle is larger than that of the movable ejection sleeve.
Further, the bottom of the inner needle penetrates through the ejector plate and the bottom plate, the needle block is inlaid in the groove on the bottom end face of the bottom plate, and the bottom of the inner needle is connected with the needle block.
Further, the top end of the inner needle is flush with the top end surface of the forming seat, and the outer diameter of the inner needle is in clearance fit with the inner diameter of the movable ejection sleeve.
The beneficial effects of the utility model are as follows: the utility model provides a two interior protruding casing product are harmless to push out mould structure, can carry out injection moulding to the casing product that has two interior protruding structures to improve to ejecting structure, through the setting and the arrangement of first flat ejector pin, the flat ejector pin of second and interior propping top cover, can prop the top to protruding structure in font and U-shaped in ejecting in-process, interior propping top cover can avoid the ejecting in-process deformation of casing product, makes the casing product can harmless ejecting blanking, reduces the disability rate by a wide margin, thereby reduction in production cost.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a nondestructive ejection mold for a double-inward-convex shell product according to the present utility model.
Fig. 2 is a schematic diagram of a part of a nondestructive ejection die structure for a double-inward-convex shell product according to the present utility model.
Fig. 3 is a schematic diagram of a lower core structure of a nondestructive ejection mold structure for a double-inward-protruding shell product according to the present utility model.
Fig. 4 is a schematic diagram of a molding seat of a nondestructive ejection mold structure for a double-inward-convex shell product according to the present utility model.
Fig. 5 is a schematic structural view of an inner supporting sleeve and a second supporting rod of a nondestructive ejection die structure for a double-inner convex shell product.
In the figure:
1. a top plate; 2. an upper template; 3. a lower template; 4. a mold foot; 5. a bottom plate; 6. a lower die core; 7. forming a seat; 71. a forming groove; 72. u-shaped grooves; 8. a first flat ejector rod; 9. the second flat ejector rod; 10. an inner support top sleeve; 101. a movable ejection sleeve; 102. an inner needle; 103. a needle block.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present utility model more clear and clear, the present utility model will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1 to 5, a nondestructive ejection die structure for a double-inward-protruding shell product comprises a top plate 1, an upper die plate 2, a lower die plate 3, die legs 4 and a bottom plate 5 which are sequentially stacked from top to bottom, wherein a lower die core 6 is arranged in the lower die plate 3, and an ejector plate is arranged on the inner side of the die legs 4; the device also comprises a first flat ejector rod 8, a second flat ejector rod 9 and an inner supporting ejector sleeve 10; the bottom ends of the first flat ejector rod 8 and the second flat ejector rod 9 are connected with an ejector plate, the first flat ejector rod 8 and the second flat ejector rod 9 penetrate through the lower die plate 3 and the lower die core 6, the top end of the first flat ejector rod 8 corresponds to a forming groove 71 on a forming seat 7 on the lower die core 6 in position, the forming groove 71 is used for forming a linear inward convex structure of a shell product, the top end of the second flat ejector rod 9 is positioned at a position corresponding to a U-shaped forming groove 72 on the forming seat 7, and the U-shaped forming groove 72 is used for forming a U-shaped inward convex structure of the shell product; the inner supporting top sleeve 10 comprises a movable ejection sleeve 101, an inner needle 102 and a needle block 103, the inner needle 102 is positioned inside the movable ejection sleeve 101, the inner supporting top sleeve 10 is positioned on two sides of the first flat ejector rod 8, the movable ejection sleeve 101 and the inner needle 102 of the inner supporting top sleeve 10 are matched for forming a BOSS column structure at the bottom end of a shell product, and meanwhile, in the ejection process of the shell product, the movable ejection sleeve 101 supports against the BOSS column close to the in-line inward convex structure, so that the deformation of the shell product is avoided.
The first flat ejector rod 8 and the second flat ejector rod 9 are vertically arranged, and the upper parts of the first flat ejector rod 8 and the second flat ejector rod 9 are in flat structures and are respectively matched with the structures of the one-shaped forming groove 71 and the middle structure of the U-shaped forming groove 72; the top end of the first flat ejector rod 8 is specifically located at the bottom of a forming groove 71, and the top end of the second flat ejector rod 9 is located at the middle bottom of a U-shaped forming groove 72.
The bottom end of a movable ejection sleeve 101 of the inner supporting ejection sleeve 10 is connected with the ejector plate, the top end of the movable ejection sleeve is positioned in a hole on the forming seat 7, the length of the inner needle 102 is longer than that of the movable ejection sleeve 101, and the movable ejection sleeve 101 can move up and down along the inner needle 102.
The bottom of the inner needle 102 penetrates through the ejector plate and the bottom plate 5, the needle block 103 is embedded in a groove on the bottom end face of the bottom plate 5, the needle block 103 is fixedly connected with the bottom plate 5 through a screw, the bottom of the inner needle 102 is connected with the needle block 103, and the needle block 103 is used for positioning the inner needle 102.
The top end of the inner needle 102 is flush with the top end surface of the forming seat 7, and the outer diameter of the inner needle 102 is in clearance fit with the inner diameter of the movable ejection sleeve 101, so that the movable ejection sleeve 101 can move up and down accurately.
The working principle of the utility model is as follows:
after injection molding is completed, the injection molding machine drives the upper die plate 2 and the lower die plate 3 to be separated, and demoulding and blanking operations are started; the injection molding machine drives an ejector plate to move upwards, the ejector plate drives a first flat ejector rod 8, a second flat ejector rod 9 and a movable ejection sleeve 101 of an inner supporting ejection sleeve 10 to move upwards, in the moving process, the first flat ejector rod 8 ejects a linear inward convex structure of a shell product from a linear forming groove 71, the first flat ejector rod 9 ejects a U-shaped inward convex structure of the shell product from a U-shaped forming groove 72, the movable ejection sleeve 101 of the inner supporting ejection sleeve 10 moves upwards to prop against the bottom end of a BOSS column of the shell product, and the upward movement of the shell product is realized;
because the first flat ejector rod 8 directly supports against the I-shaped inward convex structure of the shell product, the second flat ejector rod 9 directly supports against the U-shaped inward convex structure of the shell product, and the BOSS column of the shell product is close to the I-shaped inward convex structure and the U-shaped inward convex structure, the I-shaped inward convex structure and the U-shaped inward convex structure can be prevented from deforming relative to the inner wall of the shell product while the shell product is ejected, and therefore nondestructive demolding and blanking are achieved.
The above examples are provided to further illustrate the utility model and do not limit the utility model to these specific embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be construed as being within the protection scope of the present utility model.
Claims (5)
1. The nondestructive ejection die structure for the double-inward-protruding shell product comprises a top plate (1), an upper die plate (2), a lower die plate (3), die legs (4) and a bottom plate (5) which are sequentially stacked from top to bottom, wherein a lower die core (6) is arranged in the lower die plate (3), and an ejector plate is arranged on the inner side of the die legs (4); the method is characterized in that: the device also comprises a first flat ejector rod (8), a second flat ejector rod (9) and an inner supporting ejector sleeve (10); the bottom ends of the first flat ejector rod (8) and the second flat ejector rod (9) are connected with the ejector pin plate, the first flat ejector rod (8) and the second flat ejector rod (9) penetrate through the lower die plate (3) and the lower die core (6), the top end of the first flat ejector rod (8) corresponds to a forming groove (71) on a forming seat (7) on the lower die core (6), and the top end of the second flat ejector rod (9) corresponds to a U-shaped forming groove (72) on the forming seat (7); the inner supporting top sleeve (10) comprises a movable ejection sleeve (101), an inner needle (102) and a needle block (103), wherein the inner needle (102) is positioned inside the movable ejection sleeve (101), and the inner supporting top sleeve (10) is positioned on two sides of the first flat ejector rod (8).
2. The double-inward convex casing product nondestructive ejection die structure according to claim 1, wherein: the first flat ejector rod (8) and the second flat ejector rod (9) are vertically arranged, and the upper parts of the first flat ejector rod (8) and the second flat ejector rod (9) are of flat structures; the top end of the first flat ejector rod (8) is specifically positioned at the bottom of a forming groove (71), and the top end of the second flat ejector rod (9) is positioned at the middle bottom of a U forming groove (72).
3. The double-inward convex casing product nondestructive ejection die structure according to claim 2, wherein: the bottom end of a movable ejection sleeve (101) of the inner support ejection sleeve (10) is connected with the thimble plate, the top end of the movable ejection sleeve is positioned in a hole on the forming seat (7), and the length of the inner needle (102) is larger than that of the movable ejection sleeve (101).
4. A double-inward convex casing product nondestructive ejection die structure according to claim 3, wherein: the bottom end of the inner needle (102) penetrates through the ejector plate and the bottom plate (5), the needle block (103) is embedded in a groove on the bottom end face of the bottom plate (5), and the bottom end of the inner needle (102) is connected with the needle block (103).
5. The double-inward convex casing product nondestructive ejection die structure according to claim 4, wherein: the top end of the inner needle (102) is flush with the top end surface of the forming seat (7), and the outer diameter of the inner needle (102) is in clearance fit with the inner diameter of the movable ejection sleeve (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222933714.0U CN220075449U (en) | 2022-11-04 | 2022-11-04 | Double-inward-protruding shell product nondestructive ejection die structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222933714.0U CN220075449U (en) | 2022-11-04 | 2022-11-04 | Double-inward-protruding shell product nondestructive ejection die structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220075449U true CN220075449U (en) | 2023-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222933714.0U Active CN220075449U (en) | 2022-11-04 | 2022-11-04 | Double-inward-protruding shell product nondestructive ejection die structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220075449U (en) |
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2022
- 2022-11-04 CN CN202222933714.0U patent/CN220075449U/en active Active
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