CN215434757U - A prevent segment difference mould structure for cambered surface product - Google Patents
A prevent segment difference mould structure for cambered surface product Download PDFInfo
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- CN215434757U CN215434757U CN202121253409.6U CN202121253409U CN215434757U CN 215434757 U CN215434757 U CN 215434757U CN 202121253409 U CN202121253409 U CN 202121253409U CN 215434757 U CN215434757 U CN 215434757U
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- 230000007704 transition Effects 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000002265 prevention Effects 0.000 claims description 2
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model relates to the field of injection molds and discloses a section difference preventing mold structure for a cambered surface product. The upper die core is provided with an upper die cavity, the lower die core is provided with a lower die cavity, and when the upper die core and the lower die core are closed, the upper die cavity and the lower die cavity are closed. The jig comprises a jig main body and positioning pins, wherein main positioning holes are formed in the jig main body, upper positioning holes are formed in the upper mold core, lower positioning holes are formed in the lower mold core, two ends of the positioning pins are connected with the main positioning holes and the upper positioning holes respectively, two ends of the positioning pins are connected with the main positioning holes and the lower positioning holes respectively, a guide cavity is formed in the jig, the guide cavity is used for smooth transition of the joint of the upper mold cavity and the lower mold cavity, and the guide cavity is used for smooth transition of the joint of the lower mold cavity and the guide cavity. This tool can improve the poor problem of section of the last lower mould parting surface of highlight cambered surface product.
Description
Technical Field
The utility model relates to the field of injection molds, in particular to a section difference preventing mold structure for a cambered surface product.
Background
For a highlight cambered surface product mold, injection molding is performed in a mode of opening the mold from top to bottom, reverse openings are easy to appear in opposite polishing of parting surfaces of an upper mold and a lower mold of a product, the section difference can appear in the parting surfaces when the upper mold and the lower mold of the product are assembled, the appearance requirement of the product is seriously influenced, the unqualified product needs to be reworked, and the processing cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provides a section difference prevention die structure for a cambered surface product, which can solve the problem of section difference of an upper die parting surface and a lower die parting surface of a highlight cambered surface product.
The purpose of the utility model is realized by the following technical scheme:
a prevent segment difference mould structure for cambered surface product, includes last mould benevolence, lower mould benevolence and tool. The upper die core is provided with an upper die cavity, the lower die core is provided with a lower die cavity, and when the upper die core and the lower die core are closed, the upper die cavity and the lower die cavity are closed. The jig comprises a jig main body and positioning pins, wherein a main positioning hole is formed in the jig main body, an upper positioning hole is formed in the upper die core, a lower positioning hole is formed in the lower die core, two ends of each positioning pin are connected with the main positioning hole and the upper positioning hole respectively, two ends of each positioning pin are connected with the main positioning hole and the lower positioning hole respectively, a guide cavity is formed in the jig, the guide cavity is used for smooth transition of the joint of the upper die cavity, and the guide cavity is used for smooth transition of the joint of the lower die cavity.
In one embodiment, a guide arc surface is arranged on the cavity wall of the guide cavity, an upper arc surface is arranged on the cavity wall of the upper cavity, a lower arc surface is arranged on the cavity wall of the lower cavity, the guide arc surface is used for smooth transition at the joint of the guide arc surface and the upper arc surface, and the guide arc surface is used for smooth transition at the joint of the guide arc surface and the lower arc surface.
In one embodiment, the guide cavity is disposed at a middle position of the jig main body, the upper mold cavity is disposed at a middle position of the upper mold core, and the lower mold cavity is disposed at a middle position of the lower mold core.
In one embodiment, the main positioning holes are disposed at the periphery of the jig main body, the upper positioning holes are disposed at the periphery of the upper mold core, and the lower positioning holes are disposed at the periphery of the lower mold core.
In one embodiment, the positioning pin includes at least one positioning pin, two ends of the positioning pin are respectively connected to the main positioning hole and the upper positioning hole, and two ends of the positioning pin are respectively connected to the main positioning hole and the lower positioning hole.
In one embodiment, the positioning pin is provided in plurality, the main positioning hole, the upper positioning hole and the lower positioning hole are provided in plurality, each main positioning hole and each upper positioning hole are respectively connected by each positioning pin, and each main positioning hole and each lower positioning hole are respectively connected by each positioning pin.
In one embodiment, the jig further comprises a locking bolt, the main body of the jig is provided with a main connecting hole, the upper die core is provided with an upper connecting hole, the lower die core is provided with a lower connecting hole, two ends of the locking bolt are respectively connected with the main connecting hole and the upper connecting hole, and two ends of the locking bolt are respectively connected with the main connecting hole and the lower connecting hole.
In one embodiment, the main connection holes are disposed at the periphery of the jig main body, the upper connection holes are disposed at the periphery of the upper mold core, and the lower connection holes are disposed at the periphery of the lower mold core.
In one embodiment, the locking bolt is provided in plurality, the main connecting hole, the upper connecting hole and the lower connecting hole are provided in plurality, each main connecting hole and each upper connecting hole are respectively connected through each locking bolt, and each main connecting hole and each lower connecting hole are respectively connected through each locking bolt.
In one embodiment, the bottom of the jig main body is provided with a mounting groove, the groove wall of the mounting groove is used for being attached to the outer wall of the upper mold core, and the groove wall of the mounting groove is used for being attached to the outer wall of the lower mold core.
In one embodiment, the groove wall of the mounting groove is provided with an attachment curved surface, the attachment curved surface is used for attaching to the outer curved surface of the upper mold core, and the attachment curved surface is used for attaching to the outer curved surface of the lower mold core.
Compared with the prior art, the utility model has at least the following advantages:
according to the utility model, the jig main body is positioned and assembled on the upper mold core or the lower mold core through the positioning pins, and then the joint of the jig main body and the upper mold core or the lower mold core is subjected to mold-saving polishing, so that the joint of the jig main body and the upper mold core or the lower mold core is in smooth transition, the problem of arc surface back opening of the upper mold parting surface and the lower mold parting surface of a highlight arc surface product is avoided during processing, the problem of section difference of the upper mold parting surface and the lower mold parting surface of the highlight arc surface product is avoided, and the appearance requirement of the product is met. Meanwhile, the problem of rework in the machining process is avoided, and the working efficiency is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is an exploded view of a segment difference preventing mold structure for a cambered surface product according to an embodiment of the present invention.
Fig. 2 is a combined cross-sectional view of a segment difference preventing mold structure for a cambered surface product according to an embodiment of the present invention.
Detailed Description
To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
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 invention 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. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The above-described anti-level-difference mold structure for cambered surface products is described in order to better understand the concept of the above-described anti-level-difference mold structure for cambered surface products. In one embodiment, referring to fig. 2 and fig. 120, a mold structure 10 for preventing a step difference of a curved surface product includes an upper mold core 120, a lower mold core and a fixture 110. The upper mold core 120 is provided with an upper mold cavity 121, the lower mold core is provided with a lower mold cavity, and when the upper mold core 120 and the lower mold core are closed, the upper mold cavity 121 and the lower mold cavity are closed. The jig 110 comprises a jig main body 111 and a positioning pin 112, the jig main body 111 is provided with a main positioning hole 1111, the upper die core 120 is provided with an upper positioning hole 122, the lower die core is provided with a lower positioning hole, two ends of the positioning pin 112 are respectively connected with the main positioning hole 1111 and the upper positioning hole 122, two ends of the positioning pin 112 are respectively connected with the main positioning hole 1111 and the lower positioning hole, the jig 110 is provided with a guide cavity 1112, the guide cavity 1112 is used for smooth transition at a joint of the upper die cavity 121, and the guide cavity 1112 is used for smooth transition at a joint of the lower die cavity.
It should be noted that, during installation, the jig main body 111 is placed on the upper mold core 120 or the lower mold core, the positions of the jig main body 111 and the upper mold core 120 or the lower mold core are positioned by the matching relationship between the positioning pin 112 and the main positioning hole 1111, the upper positioning hole 122 and the lower positioning hole, that is, the jig main body 111 is positioned and assembled on the upper mold core 120 or the lower mold core, and the connection part a between the jig main body 111 and the upper mold core 120 or the lower mold core is polished in a mold-saving manner, so that the connection part a between the jig main body 111 and the upper mold core 120 or the lower mold core is in smooth transition, thereby ensuring that the problem of arc surface back mouth does not exist on the upper mold parting surface and the lower mold parting surface of the highlight arc surface product during processing, avoiding the problem of section difference between the upper mold parting surface and the lower mold parting surface of the highlight arc surface product, and meeting the appearance requirement of the product. Meanwhile, the problem of rework in the machining process is avoided, and the working efficiency is greatly improved.
Further, a guiding arc surface 1115 is arranged on the cavity wall of the guiding cavity 1112, an upper arc surface 124 is arranged on the cavity wall of the upper cavity 121, a lower arc surface is arranged on the cavity wall of the lower cavity, the guiding arc surface 1115 is used for smooth transition at the joint with the upper arc surface 124, and the guiding arc surface 1115 is used for smooth transition at the joint with the lower arc surface. The upper arc surface 124 and the lower arc surface are respectively an upper mold parting surface and a lower mold parting surface, and are also the joints of the jig main body 111 and the upper mold core 120 or the lower mold core.
Further, the guide cavity 1112 is disposed at a middle position of the fixture main body 111, the upper mold cavity 121 is disposed at a middle position of the upper mold core 120, and the lower mold cavity is disposed at a middle position of the lower mold core.
Further, the main positioning holes 1111 are disposed at the peripheral positions of the jig main body 111, the upper positioning holes 122 are disposed at the peripheral positions of the upper mold core 120, and the lower positioning holes are disposed at the peripheral positions of the lower mold core.
Further, the positioning pin is provided in plurality, the main positioning hole 1111, the upper positioning hole 122 and the lower positioning hole are provided in plurality, each main positioning hole 1111 and each upper positioning hole 122 are respectively connected by each positioning pin, and each main positioning hole 1111 and each lower positioning hole are respectively connected by each positioning pin.
Further, the jig 110 further includes a locking bolt 113, the jig main body 111 is provided with a main connecting hole 1113, the upper mold core 120 is provided with an upper connecting hole 123, the lower mold core is provided with a lower connecting hole, two ends of the locking bolt 113 are respectively connected with the main connecting hole 1113 and the upper connecting hole 123, and two ends of the locking bolt 113 are respectively connected with the main connecting hole 1113 and the lower connecting hole. Therefore, the locking and fixing jig main body 111 and the upper mold core 120 or the lower mold core are locked through the matching relation of the locking bolt 113 and the main connecting hole 1113, the upper connecting hole 123 and the lower connecting hole, and the jig main body 111, the upper mold core 120 or the lower mold core is prevented from displacing during processing and polishing, so that the processing precision and the assembly matching degree of the upper mold and the lower mold of a product are improved.
Further, the main connection holes 1113 are formed in the periphery of the jig main body 111, the upper connection holes 123 are formed in the periphery of the upper mold core 120, and the lower connection holes are formed in the periphery of the lower mold core.
Further, the locking bolt 113 is provided in plurality, the main connecting hole 1113, the upper connecting hole 123 and the lower connecting hole are provided in plurality, each main connecting hole 1113 and each upper connecting hole 123 are respectively connected by each locking bolt 113, and each main connecting hole 1113 and each lower connecting hole are respectively connected by each locking bolt 113.
Further, a hexagonal hole is formed in the end portion of the nut of the locking bolt 113, a locking thread is arranged at the tail portion of the screw rod of the locking bolt 113, an upper thread matched with the locking thread is arranged in the upper connecting hole 123, and a lower thread matched with the locking thread is arranged in the lower connecting hole. Thus, the matching performance of the jig main body 111 and the upper mold core 120 or the lower mold core is improved by arranging the locking thread, the upper thread and the lower thread; so through setting up the hexagonal hole to conveniently twist and move locking bolt 113 and fasten lockingly.
Further, the bottom of the jig main body 111 is provided with a mounting groove 1114, a groove wall of the mounting groove 1114 is used for being attached to the outer wall of the upper mold core 120, and a groove wall of the mounting groove 1114 is used for being attached to the outer wall of the lower mold core. Thus, the jig main body 111 can be easily assembled with the upper mold core 120 or the lower mold core through the mounting grooves 1114.
Further, the groove wall of the mounting groove 1114 is provided with an attachment curved surface for attaching to the outer curved surface of the upper mold insert 120, and the attachment curved surface for attaching to the outer curved surface of the lower mold insert.
Further, the jig main body 111 is a steel frame made of NAK80 steel. The jig main body 111 made of the NAK80 steel has a high hardness and is not easily corroded.
Further, the jig main body 111 includes an aluminum inner layer and a steel outer layer, and the steel outer layer is wrapped outside the aluminum inner layer. Thus, the weight of the jig main body 111 itself is reduced by adding the aluminum inner layer.
In summary, the installation method of the entire mold structure (taking the installation of the upper mold core 120 as an example) is: the jig main body 111 is placed on the upper mold core 120, the positions of the jig main body 111 and the upper mold core 120 or the lower mold core are positioned by the matching relationship of the positioning pin 112 and the main positioning hole 1111, the upper positioning hole 122 and the lower positioning hole, and then locked by the locking bolt 113.
The processing method of the whole mold structure (taking the processing of the upper mold insert 120 as an example) is as follows: a. when the upper die core 120 is processed, 0.2MM is reserved at the parting surface glue part, and the parting surface is finely processed to a number; meanwhile, when the jig main body 111 is processed, 0.2MM is reserved after glue is applied, and the parting surface is processed to the number. b. After the two processes are completed, the upper mold core 120 and the jig main body 111 are assembled, and the locking bolt 113 and the positioning pin 112 are locked to complete the process of assembling the whole jig. c. After installation, the glue position of 0.2MM is reserved for the upper mold core 120 and the jig main body 111 for finish machining, so that an arc surface is formed at the parting surface of the upper mold core 120 and the jig main body 111, and then mold-saving polishing is carried out on the arc surface.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A section difference prevention die structure for cambered surface products comprises an upper die core and a lower die core, wherein the upper die core is provided with an upper die cavity, the lower die core is provided with a lower die cavity, when the upper mold core and the lower mold core are closed, the upper mold cavity and the lower mold cavity are closed, it is characterized by also comprising a jig, wherein the jig comprises a jig main body and a positioning pin, the jig main body is provided with a main positioning hole, the upper die core is provided with an upper positioning hole, the lower die core is provided with a lower positioning hole, two ends of the positioning pin are respectively connected with the main positioning hole and the upper positioning hole, two ends of the positioning pin are respectively connected with the main positioning hole and the lower positioning hole, the jig is provided with a guide cavity, the guide cavity is used for smooth transition of a joint of the upper die cavity and the lower die cavity.
2. The section difference preventing die structure for the arc-shaped surface product according to claim 1, wherein the cavity wall of the guide cavity is provided with a guide arc surface, the cavity wall of the upper die cavity is provided with an upper arc surface, the cavity wall of the lower die cavity is provided with a lower arc surface, the guide arc surface is used for smooth transition at a joint with the upper arc surface, and the guide arc surface is used for smooth transition at a joint with the lower arc surface.
3. The section difference preventing mold structure for the arc-surface product as claimed in claim 1, wherein the guiding cavity is provided at a middle position of the jig main body, the upper mold cavity is provided at a middle position of the upper mold core, and the lower mold cavity is provided at a middle position of the lower mold core.
4. The section difference preventing mold structure for the arc-surface product as claimed in claim 3, wherein the main positioning holes are opened at the peripheral positions of the jig main body, the upper positioning holes are opened at the peripheral positions of the upper mold core, and the lower positioning holes are opened at the peripheral positions of the lower mold core.
5. The anti-level-difference die structure for arc-surface products of claim 1, wherein said positioning pins are provided in plurality, said main positioning holes, said upper positioning holes and said lower positioning holes are provided in plurality, each of said main positioning holes and each of said upper positioning holes are respectively connected by each of said positioning pins, and each of said main positioning holes and each of said lower positioning holes are respectively connected by each of said positioning pins.
6. The section difference preventing mold structure for the arc-shaped surface product according to claim 1, wherein the jig further comprises a locking bolt, the jig main body is provided with a main connecting hole, the upper mold core is provided with an upper connecting hole, the lower mold core is provided with a lower connecting hole, two ends of the locking bolt are respectively connected with the main connecting hole and the upper connecting hole, and two ends of the locking bolt are respectively connected with the main connecting hole and the lower connecting hole.
7. The section difference preventing mold structure for the arc-surface product according to claim 6, wherein the main connecting holes are opened at the peripheral positions of the jig main body, the upper connecting holes are opened at the peripheral positions of the upper mold core, and the lower connecting holes are opened at the peripheral positions of the lower mold core.
8. The structure of claim 6, wherein the locking bolts are provided in plurality, the main connecting holes, the upper connecting holes and the lower connecting holes are provided in plurality, each main connecting hole and each upper connecting hole are connected by each locking bolt, and each main connecting hole and each lower connecting hole are connected by each locking bolt.
9. The section difference preventing mold structure for the arc-surface product as claimed in claim 1, wherein a mounting groove is provided at the bottom of the jig main body, a groove wall of the mounting groove is used for being attached to the outer wall of the upper mold core, and a groove wall of the mounting groove is used for being attached to the outer wall of the lower mold core.
10. The anti-segment difference mold structure for the arc-shaped surface product as claimed in claim 9, wherein the groove wall of the mounting groove is provided with an attaching curved surface for attaching to the outer curved surface of the upper mold core, and the attaching curved surface for attaching to the outer curved surface of the lower mold core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121253409.6U CN215434757U (en) | 2021-06-04 | 2021-06-04 | A prevent segment difference mould structure for cambered surface product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121253409.6U CN215434757U (en) | 2021-06-04 | 2021-06-04 | A prevent segment difference mould structure for cambered surface product |
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| CN215434757U true CN215434757U (en) | 2022-01-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114918615A (en) * | 2022-05-13 | 2022-08-19 | 浙江百康光学股份有限公司 | Preparation method of optical insert |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114918615A (en) * | 2022-05-13 | 2022-08-19 | 浙江百康光学股份有限公司 | Preparation method of optical insert |
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