CN114571676B - Mould and prevent structure of surface shrink seal thereof - Google Patents
Mould and prevent structure of surface shrink seal thereof Download PDFInfo
- Publication number
- CN114571676B CN114571676B CN202210281013.5A CN202210281013A CN114571676B CN 114571676 B CN114571676 B CN 114571676B CN 202210281013 A CN202210281013 A CN 202210281013A CN 114571676 B CN114571676 B CN 114571676B
- Authority
- CN
- China
- Prior art keywords
- needle
- sleeve
- barrel
- product
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000005540 biological transmission Effects 0.000 claims description 23
- 239000000463 material Substances 0.000 abstract description 9
- 230000033001 locomotion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C2045/1784—Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
- B29C2045/1785—Movement of a part, e.g. opening or closing movement of the mould, generating fluid pressure in a built-in fluid pressure generator
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention relates to the technical field of dies and discloses a die and a structure for preventing surface shrinkage printing of the die. According to the invention, the needle sleeve and the barrel needle are arranged to prop against the boss column together, so that the shrinkage of the boss column can be transferred from the surface of a product to the back of the product, the surface shrinkage degree of the product at the position corresponding to the boss column is reduced, the thickness of the material does not need to be increased, and the economic cost is reduced.
Description
Technical Field
The invention relates to the technical field of dies, in particular to a die and a structure for preventing surface shrinkage printing of the die.
Background
At present, the problem of the offset at the position of the corresponding boss column on the surface of a die product is usually improved by increasing the local material thickness of the product near the boss column, but the improvement of the problem of the offset on the surface of the product by the method is limited, the local material thickness is also increased, and the economic cost is higher.
Disclosure of Invention
The purpose of the invention is that: the surface shrinkage printing prevention structure of the die can reduce the surface shrinkage printing degree of the product corresponding to the boss column, does not need to increase the thickness of the material, and reduces the economic cost.
In order to achieve the above purpose, the invention provides a structure for preventing surface offset, which comprises a driving device, a barrel needle and a needle sleeve, wherein the driving device, the barrel needle and the needle sleeve are arranged in a die, a cavity is formed in a core, the driving device drives the barrel needle and the needle sleeve to move together in the cavity, the needle sleeve is sleeved outside the barrel needle, the barrel needle is used for propping against the bottom of an axial hole of a boss column, and the needle sleeve is used for propping against the end face of the boss column.
Optionally, the structure for preventing surface offset further comprises a transmission device, and the driving device is connected with the barrel needle through the transmission device.
Optionally, the barrel needle comprises a needle core and a sleeve, the sleeve is sleeved outside the needle core, and the needle sleeve is sleeved outside the needle core.
Optionally, one end of the needle sleeve is sleeved outside the needle core, and the other end of the needle sleeve is sleeved outside the sleeve.
Optionally, the transmission device is a transmission block, a chute obliquely arranged towards the direction of the cavity is arranged on the transmission block, and the driving device drives the transmission block to linearly move, so that the sleeve slides in the chute and the barrel needle and the needle sleeve jointly move in the cavity.
Optionally, a first guiding sliding rail is further arranged on the side wall of the sliding groove, a first guiding groove matched with the first guiding sliding rail is formed in the sleeve, and the first guiding sliding rail can slide in the first guiding groove.
Optionally, the transmission block is further provided with a second guiding sliding rail, the mold is provided with a second guiding groove matched with the second guiding sliding rail, and the second guiding sliding rail is used for sliding in the second guiding groove.
Optionally, the outer diameter of the needle sheath is smaller than the outer diameter of the boss column.
The invention also provides a mould comprising a structure for preventing surface offset as described in any of the preceding paragraphs.
The invention provides a die and a structure for preventing surface offset, which has the beneficial effects that compared with the prior art:
the invention provides a structure for preventing surface offset, which comprises a driving device, a barrel needle and a needle sleeve, wherein the driving device, the barrel needle and the needle sleeve are arranged in a die, a cavity is formed in a core, the driving device drives the barrel needle and the needle sleeve to move together in the cavity, the needle sleeve is sleeved outside the barrel needle, the barrel needle is used for propping against the bottom of an axial hole of a boss column, and the needle sleeve is used for propping against the end face of the boss column. Through setting up needle cover and thick needle of a section of thick bamboo and supporting the boss post jointly when the product does not solidify, exert the force towards the product surface to the boss post, can shift the shrink of boss post from the product surface to the product back, reduce the product and correspond the surface reduction degree of boss post department, need not to increase the material thickness, reduce economic cost.
The invention also provides a die, which comprises the die, can reduce the surface reduction degree of the product at the position corresponding to the boss column, does not need to increase the thickness of the product, and reduces the economic cost.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present invention.
Fig. 2 is a schematic illustration of a product of an embodiment of the invention.
FIG. 3 is a schematic illustration of the structure and product of the present invention for preventing surface offset.
Fig. 4 is a schematic view of a span needle and needle sheath of an embodiment of the present invention.
Fig. 5 is a schematic diagram of a cavity of a mold according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of a transmission device according to an embodiment of the present invention.
Fig. 7 is a schematic view showing the structure of a second guide groove according to an embodiment of the present invention.
In the figure, 1, a driving device; 2. a bobbin needle; 3. a needle sleeve; 4. a cavity; 5. a boss column; 6. an axial bore; 7. a transmission device; 8. a needle core; 9. a sleeve; 10. a chute; 11. a first guide rail; 12. a first guide groove; 13. a second guide rail; 14. a second guide groove; 15. a mold; 16. a product; 17. the surface of the product; 18. the back of the product.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying 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 invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-3, a structure for preventing surface offset according to a preferred embodiment of the present invention includes a driving device 1, a barrel needle 2 and a needle sleeve 3 disposed in a mold 15, a cavity 4 is formed on a core, the driving device 1 drives the barrel needle 2 and the needle sleeve 3 to move together in the cavity 4, the needle sleeve 3 is sleeved outside the barrel needle 2, the barrel needle 2 is used for supporting against a bottom of an axial hole 6 of a boss column 5, and the needle sleeve 3 is used for supporting against an end face of the boss column 5.
According to the structure for preventing surface offset, the needle sleeve 3 and the barrel needle 2 are arranged to prop against the boss column 5 together, force towards the surface of a product is applied to the boss column, the product is not solidified at the moment, the resin material at the boss column 5 is in the shrinkage stage of polymerization reaction, when the force transmitted by the needle sleeve 3 is received, the polymerization reaction at the boss column 5 can be carried out in a manner of being clung to the surface 17 of the product, shrinkage is transferred to the back 18 of the product through intervention of external force, and therefore the surface offset degree of the product 16 corresponding to the boss column 5 is reduced, the thickness of the material does not need to be increased, and the economic cost is reduced.
In the prior art, in order to reduce the offset of the product surface 17, it is common to design the boss column to be similar to a crater shape, or to increase the thickness around the boss column, or to increase the dwell time during injection molding, etc. in order to reduce the offset of the product surface 17, other problems such as increase in material and increase in cost are caused, which are not obvious, but other problems occur. In this embodiment, the degree of reduction of the print on the product surface 17 is reduced by providing an external force to the uncured product, and instead of reducing the print from the boss, transferring the print to the back surface 18 of the product.
Fig. 2 shows the structure of the product 16, the needle sheath 3 and the barrel needle 2 are abutted against the boss 5 together, and the product 16 can be prevented from sticking to the core during the demolding process. Fig. 5 shows the relative position of the mould cavity 4 and the barrel needle 2.
Referring to fig. 4, the barrel needle 2 includes a needle core 8 and a sleeve 9, the sleeve 9 is sleeved outside the needle core 8, and the needle sleeve 3 is sleeved outside the needle core 8. Of course, in other embodiments, it is also possible to provide that one end of the needle sheath 3 is sleeved outside the needle core 8, and the other end of the needle sheath 3 is sleeved outside the sleeve 9. When the drive means 1 drives the sleeve 9, the needle sheath 3 will also move with the sleeve 9.
The embedded part can be sleeved on the needle core 8, so that the surface stress of the boss column 5 is uniform, and the reduction of the offset influence on the back surface 18 of the product can be realized.
The structure for preventing surface offset in this embodiment further comprises a transmission device 7, and the driving device 1 is connected with the span needle 2 through the transmission device 7. In the present embodiment of the present invention, in the present embodiment,
the transmission device 7 is a transmission block, a chute 10 which is obliquely arranged towards the direction of the cavity 4 is arranged on the transmission block, and the driving device 1 drives the transmission block to linearly move, so that the sleeve 9 slides in the chute 10 and the barrel needle 2 and the needle sleeve 3 jointly move in the cavity 4. When the drive device 1 drives the transmission block to move, the sleeve 9 can move towards the opening of the cavity 4 along with the guidance of the chute 10, and the needle sleeve 3 moves in the cavity 4 to move or reset towards the direction of the product.
The side wall of the chute 10 is also provided with a first guide slide rail 11, the sleeve 9 is provided with a first guide groove 12 matched with the first guide slide rail 11, and the first guide slide rail 11 can slide in the first guide groove 12. By providing the first guide rail and the first guide groove 12, the movement stability of the sleeve 9 can be improved, thereby providing uniform pressure to the boss column 5.
Referring to fig. 6 and 7, the transmission block is further provided with a second guide rail 13, the mold 15 is provided with a second guide groove 14 adapted to the second guide rail 13, and the second guide rail 13 is configured to slide in the second guide groove 14. By providing the second guide rail and the second guide groove 14, the motion stability of the transmission block can be improved, and uniform pressure can be provided to the boss column 5.
In this embodiment, the outer diameter of the needle sheath 3 is smaller than the outer diameter of the boss 5. In other embodiments, the outer diameter of the needle sheath 3 may be the same as the outer diameter of the boss 5, and may be as desired in a particular manufacturing implementation.
The present embodiment also provides a mold 15 including the above structure for preventing surface shrinkage.
In summary, the embodiment of the invention provides a mold 15 and a structure for preventing surface shrinkage printing, which can reduce the surface shrinkage printing degree of a product 16 corresponding to a boss column 5, does not need to increase the thickness of the material, and reduces the economic cost.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (6)
1. The structure for preventing surface offset is characterized by comprising a driving device, a barrel needle and a needle sleeve, wherein the driving device, the barrel needle and the needle sleeve are arranged in a die, a cavity is formed in a core, the driving device drives the barrel needle and the needle sleeve to move together in the cavity, the needle sleeve is sleeved outside the barrel needle, the barrel needle is used for propping against the bottom of an axial hole of a boss column, and the needle sleeve is used for propping against the end face of the boss column;
the driving device is connected with the driver needle through the transmission device;
the barrel needle comprises a needle core and a sleeve, the sleeve is sleeved outside the needle core, and the needle sleeve is sleeved outside the needle core;
an embedded part is sleeved on the needle core;
one end of the needle sleeve is sleeved outside the needle core, and the other end of the needle sleeve is sleeved outside the sleeve.
2. The structure for preventing surface offset according to claim 1, wherein the transmission device is a transmission block, a chute which is obliquely arranged in the direction of the cavity is arranged on the transmission block, and the driving device drives the transmission block to linearly move, so that the sleeve slides in the chute and the barrel needle and the needle sleeve jointly move in the cavity.
3. The structure for preventing surface offset according to claim 2, wherein a first guiding rail is further provided on a side wall of the chute, a first guiding groove adapted to the first guiding rail is provided on the sleeve, and the first guiding rail can slide in the first guiding groove.
4. The structure for preventing surface offset according to claim 2, wherein a second guiding rail is further provided on the driving block, and a second guiding groove adapted to the second guiding rail is provided on the mold, and the second guiding rail is configured to slide in the second guiding groove.
5. The structure for preventing surface shrinkage according to claim 1, wherein the outer diameter of the needle hub is smaller than the outer diameter of the boss.
6. A mould comprising a structure for preventing surface shrinkage according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210281013.5A CN114571676B (en) | 2022-03-22 | 2022-03-22 | Mould and prevent structure of surface shrink seal thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210281013.5A CN114571676B (en) | 2022-03-22 | 2022-03-22 | Mould and prevent structure of surface shrink seal thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114571676A CN114571676A (en) | 2022-06-03 |
| CN114571676B true CN114571676B (en) | 2024-01-05 |
Family
ID=81782485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210281013.5A Active CN114571676B (en) | 2022-03-22 | 2022-03-22 | Mould and prevent structure of surface shrink seal thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114571676B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114571676A (en) | 2022-06-03 |
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