CN216068462U - Thread rolling die of semicircular cover - Google Patents
Thread rolling die of semicircular cover Download PDFInfo
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- CN216068462U CN216068462U CN202122530121.5U CN202122530121U CN216068462U CN 216068462 U CN216068462 U CN 216068462U CN 202122530121 U CN202122530121 U CN 202122530121U CN 216068462 U CN216068462 U CN 216068462U
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Abstract
The utility model relates to a thread rolling die of a semicircular cover, which comprises an upper die set, a lower die set and a die core, wherein the upper die set is provided with a first die and a second die; the mold core is internally provided with a molding mold cavity which is communicated with the glue injection nozzle of the upper module; the mold core comprises a front mold core, a rear mold core and a thread rolling mold core, the front mold core and the rear mold core are respectively embedded in the upper mold group and the lower mold group, and the thread rolling mold core comprises a first thread rolling mold core and a second thread rolling mold core which are distributed up and down; the top end of the second thread rolling mould core is arranged corresponding to the forming mould cavity, and the first thread rolling mould core is abutted against the second thread rolling mould core. The utility model discloses an injection mold with centralized design of injection molding and thread processing, which achieves the purposes of reducing the processing cost of products, improving the efficiency and ensuring the precision of the products so as to solve the technical problems in the prior art.
Description
Technical Field
The utility model relates to an injection mold, in particular to a thread rolling mold of a semicircular cover, which can be used for injection molding of an annular part on a tap and one-step processing and forming of threads.
Background
As shown in fig. 1, a semicircular cover a is a part on the faucet, the semicircular cover a is a circular bowl-shaped body, the upper part and the lower part of the semicircular cover a are through, and the inner side wall of the semicircular cover a is provided with screw teeth to be matched with other parts for screw connection. Most of the existing semi-circular caps A are processed in two steps, the first step is to perform injection molding on semi-circular semi-finished products, and the second step is to perform thread forming on the inner walls of the semi-finished products.
Therefore, how to improve the injection molding mold of the semicircular cover to realize one-time processing molding and also to perform thread opening is one of the technical problems to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a thread rolling die of a semicircular cover, which can be used for injection molding of an annular part on a tap and one-step machining and forming of threads.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a thread rolling die of semicircle lid, its includes module, lower module, mold core, wherein:
the mold core is internally provided with a molding mold cavity which is communicated with the glue injection nozzle of the upper module;
the mold core comprises a front mold core, a rear mold core and a thread rolling mold core, the front mold core and the rear mold core are respectively embedded in the upper mold group and the lower mold group, and the thread rolling mold core comprises a first thread rolling mold core and a second thread rolling mold core which are distributed up and down;
the top end of the second thread rolling mould core is arranged corresponding to the forming mould cavity, and the first thread rolling mould core is abutted against the second thread rolling mould core.
Further preferred is: first thread rolling mould benevolence wears to locate in the last module, it includes integrative vertical portion and the pressure part that links to each other, wherein:
the vertical part is a vertical straight rod, penetrates through the upper module and extends into the front mold core;
the pressing part is pressed against the top end of the second thread rolling die core.
Further preferred is: the vertical part comprises a straight rod and a conical rod which are connected end to end, and the tip end of the conical rod penetrates through the front mold core insert and is vertically connected with the pressing part.
Further preferred is: the front mold core insert is embedded in the front mold core and is positioned above the molding mold cavity.
Further preferred is: the driving wheel set is connected with the second thread rolling die core and linked with the second thread rolling die core to drive the second thread rolling die core to rotate.
Further preferred is: the second thread rolling die core comprises a thread rolling gear and a shaft lever, wherein:
the shaft lever vertically penetrates through the lower die set, the top end of the shaft lever is a screw tooth processing end, and the screw tooth processing end penetrates through the rear die core insert to be matched with the forming die cavity to perform screw tooth processing;
the thread rolling gear is fixed on the shaft rod.
Further preferred is: the driving wheel group comprises a driving gear, a driving gear and a driving wheel shaft, wherein:
the driving gear and the driving gear are distributed up and down and are arranged on the driving wheel shaft;
the driving gear is meshed with the thread rolling gear to form a driving structure of a second thread rolling die core;
the driving gear is meshed with a rack, and the rack is driven by a cylinder or an oil cylinder to move.
Further preferred is: the shaft lever is a hollow body, and a boss is arranged on the side wall of the shaft lever and clamped in the lower die set.
Further preferred is: the shaft lever is provided with a limiting ring, and the limiting ring is sleeved below the thread rolling gear.
Further preferred is: the rear mould core insert is a plate-shaped body and is embedded in the rear mould core.
Further preferred is: the molding die cavity is positioned in the front die core and is annular.
After adopting the technical scheme, compared with the background technology, the utility model has the following advantages:
according to the utility model, the thread rolling die core is added on the original injection mould and comprises the first thread rolling die core and the second thread rolling die core which are vertically distributed and matched, so that the thread processing of the inner wall of the formed semi-finished product is realized, the aim that one set of injection mould performs the centralized design of injection moulding and thread processing is achieved, the product processing cost is reduced, the efficiency is improved, the product precision is ensured, and the technical problems in the prior art are solved.
Drawings
FIG. 1 is a schematic view of the construction of the dome of the present invention;
FIG. 2 is a first schematic structural diagram of a thread rolling die of the semicircular cap in the embodiment of the present invention;
FIG. 3 is a schematic diagram of the structure at B in FIG. 2;
fig. 4 is a structural schematic diagram of the thread rolling die of the semicircular cap in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the apparatus or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.
Examples
As shown in fig. 1 and 2, the utility model discloses a thread rolling die of a semicircular cover a, which can effectively process the threads on the inner wall of an annular product, and perform thread processing while performing injection molding, so as to reduce the production cost of the product and improve the efficiency.
As shown in fig. 2, the thread rolling die for the semicircular cap comprises an upper die set 100, a lower die set 200 and a die core 300.
As shown in fig. 2, the upper module 100 includes a panel 110, a stripper plate 120 and an upper mold plate 130, and the panel 110, the stripper plate 120 and the upper mold plate 130 are sequentially stacked from top to bottom; the lower die set 200 comprises a lower die plate 210, a push plate 220, a stripping plate 230 and a bottom plate 240 which are sequentially stacked from top to bottom, wherein the stripping plate 230 is connected with the bottom plate 240 through two supporting side plates 250, and the two supporting side plates 250 are symmetrically distributed.
As shown in fig. 2, the mold core 300 includes a front mold core 310, a rear mold core 320 and a thread rolling mold core 300, the rear mold core 320 is embedded on the lower mold plate 210, the front mold core 310 is embedded in the upper mold plate 130, the front mold core 310 is provided with a circular cavity, and the front mold core 310 is stacked on the rear mold core 320; the thread rolling mold core 300 includes a first thread rolling mold core 410 and a second thread rolling mold core 420 which are vertically distributed;
as shown in fig. 2, the front mold core 310 is provided with a cylindrical insert hole, the insert hole is located above the circular cavity, and a front mold core insert 311 is inserted into the insert hole; a rectangular caulking groove is formed in the rear mold core 320, the caulking groove is arranged away from the front mold core 310, and a rectangular plate-shaped rear mold core insert 321 is embedded in the caulking groove;
as shown in fig. 2, the second thread rolling mold core 420 includes a thread rolling gear 422 and a shaft 421; the thread rolling gear 422 is fixedly arranged on the shaft rod 421 and is arranged close to the lower end of the shaft rod 421; the shaft 421 is a vertical tubular body with a circular radial cross section, the top end of the shaft is provided with a convex tooth for forming a screw thread, the shaft 421 penetrates through the lower template 210, the push plate 220 and the stripper plate 230, and the top end of the shaft 421 penetrates through the rear mold insert 321 and is arranged in the circular cavity to obtain a circular molding cavity 500; the shaft rod 421 is further sleeved with a limiting ring 600, and the limiting ring 600 is arranged below the thread rolling gear 422; the circumferential side of the shaft 421 extends radially outward to form an annular boss, and the annular boss is clamped in the push plate 220;
as shown in fig. 2 and 3, the first thread rolling mold core 410 includes a vertical portion and a pressing portion 413 connected to each other, the vertical portion includes a straight rod 411 and a tapered rod 412 vertically arranged end to end, the straight rod 411 is vertically inserted through the panel 110 and the stripper plate 120, the tapered rod 412 is a rod body with a tip facing the lower mold plate 210 direction, the push rod 412 is inserted through the lower mold plate 210, and the tip of the push rod 412 penetrates through the front mold core insert 311 and is disposed on the pressing portion 413; the pressing part 413 is an inverted disk body, and the outer diameter of the pressing part is matched with the inner diameter of the molding cavity 500 and presses against the top of the shaft 421.
It should be noted that: as shown in fig. 2 and 3, the pressing portion 413 is provided with a positioning protrusion facing the shaft rod, the top end of the shaft rod 421 is provided with a positioning recess, and the positioning protrusion is disposed in the positioning recess to form a positioning structure between the first and second thread rolling dies 410 and 420.
As shown in fig. 2, the thread rolling gear 422 is driven by the driving wheel set 700 to perform thread rolling processing; the driving wheel set 700 comprises a driving gear 710, a driving gear 730 and a driving wheel shaft 720, wherein the driving gear 710 and the driving gear 730 are distributed vertically and are both arranged on the driving wheel shaft 720; the driving gear 710 is engaged with the thread rolling gear 730 to form a driving structure of the second thread rolling mold core 420; the driving gear 730 is meshed with a rack, and the rack is pneumatically stretched by a cylinder or an oil cylinder, so that the driving gear 710 and the thread rolling gear 422 are sequentially driven to perform thread processing on the inner wall of the injection molded product.
As shown in fig. 2, the thread rolling die of the dome is released by exposing a molded product by relatively separating the upper and lower die sets 100 and 200, and manually taking and releasing the molded product.
Referring to fig. 2 and 4, the number of the molding cavities 500 in this embodiment is four, and the molding cavities are distributed in a matrix, that is: there are four product processing stations.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. Thread rolling die of semicircle lid, its characterized in that: it includes module, lower module, mold core, wherein:
the mold core is internally provided with a molding mold cavity which is communicated with the glue injection nozzle of the upper module;
the mold core comprises a front mold core, a rear mold core and a thread rolling mold core, the front mold core and the rear mold core are respectively embedded in the upper mold group and the lower mold group, and the thread rolling mold core comprises a first thread rolling mold core and a second thread rolling mold core which are distributed up and down;
the top end of the second thread rolling mould core is arranged corresponding to the forming mould cavity, and the first thread rolling mould core is abutted against the second thread rolling mould core.
2. The thread rolling die of a semicircular cap according to claim 1, wherein: first thread rolling mould benevolence wears to locate in the last module, it includes integrative vertical portion and the pressure part that links to each other, wherein:
the vertical part is a vertical straight rod, penetrates through the upper module and extends into the front mold core;
the pressing part is pressed against the top end of the second thread rolling die core.
3. The thread rolling die of the semicircular cap according to claim 2, wherein: the vertical part comprises a straight rod and a conical rod which are connected end to end, and the tip end of the conical rod penetrates through the front mold core insert and is vertically connected with the pressing part.
4. A thread rolling die of a semicircular cap according to claim 3, characterized in that: the front mold core insert is embedded in the front mold core and is positioned above the molding mold cavity.
5. The thread rolling die of a semicircular cap according to claim 1, wherein: the driving wheel set is connected with the second thread rolling die core and linked with the second thread rolling die core to drive the second thread rolling die core to rotate.
6. The thread rolling die of a semicircular cap according to claim 5, wherein: the second thread rolling die core comprises a thread rolling gear and a shaft lever, wherein:
the shaft lever vertically penetrates through the lower die set, the top end of the shaft lever is a screw tooth processing end, and the screw tooth processing end penetrates through the rear die core insert to be matched with the forming die cavity to perform screw tooth processing;
the thread rolling gear is fixed on the shaft rod.
7. The thread rolling die of the semicircular cap according to claim 6, wherein: the driving wheel group comprises a driving gear, a driving gear and a driving wheel shaft, wherein:
the driving gear and the driving gear are distributed up and down and are arranged on the driving wheel shaft;
the driving gear is meshed with the thread rolling gear to form a driving structure of the second thread rolling die core.
8. The thread rolling die of the semicircular cap according to claim 6, wherein: the shaft lever is a hollow body, and a boss is arranged on the side wall of the shaft lever and clamped in the lower module; the shaft lever is provided with a limiting ring, and the limiting ring is sleeved below the thread rolling gear.
9. The thread rolling die of the semicircular cap according to claim 6, wherein: the rear mould core insert is a plate-shaped body and is embedded in the rear mould core.
10. The thread rolling die of a semicircular cap according to claim 1, wherein: the molding die cavity is positioned in the front die core and is annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122530121.5U CN216068462U (en) | 2021-10-21 | 2021-10-21 | Thread rolling die of semicircular cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122530121.5U CN216068462U (en) | 2021-10-21 | 2021-10-21 | Thread rolling die of semicircular cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216068462U true CN216068462U (en) | 2022-03-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122530121.5U Active CN216068462U (en) | 2021-10-21 | 2021-10-21 | Thread rolling die of semicircular cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216068462U (en) |
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2021
- 2021-10-21 CN CN202122530121.5U patent/CN216068462U/en active Active
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