CN212072771U - Plastic truckle wheel core injection mold - Google Patents
Plastic truckle wheel core injection mold Download PDFInfo
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- CN212072771U CN212072771U CN202020452395.XU CN202020452395U CN212072771U CN 212072771 U CN212072771 U CN 212072771U CN 202020452395 U CN202020452395 U CN 202020452395U CN 212072771 U CN212072771 U CN 212072771U
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Abstract
The utility model discloses a plastic truckle wheel core injection mold, include: the male mold, the female mold, the main glue injection port and the branch glue injection ports; the male mold comprises: a male mold cavity and a male mold base; the master mold includes: a female mold cavity and a female mold frame; the male mold cavity is embedded in one side of the male mold frame close to the female mold, and the female mold cavity is arranged on one side of the female mold frame close to the male mold; the male mold cavity and the female mold cavity are closed to form a plurality of independent injection molding cavities, each injection molding cavity is communicated with one branch glue injection port, and the branch glue injection ports are communicated with the main glue injection port; the middle part of the injection molding cavity is provided with an upright post, and the upright post penetrates through the injection molding cavity and is arranged on the cavity of the male mold or the cavity of the female mold; and a convex block or a groove is also arranged on the outer side of the male die cavity, and the convex block or the groove on the male die cavity is matched with the groove or the convex block on the female die cavity. So as to reduce the production operation cost of the wheel core and improve the injection molding quality.
Description
Technical Field
The utility model relates to a mould processing field especially relates to a plastic truckle wheel core injection mold.
Background
The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and accurate dimensions, and the injection molding is a processing method used for batch production of parts with complex shapes, in particular to a method for injecting heated and melted plastics into a mold cavity from an injection molding machine at high pressure and obtaining a formed product after cooling and solidification. However, in the injection molding process, the cold runner injection molding mode is usually adopted, so that a large amount of waste rods are generated after injection molding of the injection molding part is completed, and further, the production operation cost is increased.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide an injection mold for a wheel core of a plastic caster so as to reduce the production operation cost of the wheel core and improve the injection molding quality.
In order to achieve the above object, the inventor provides a plastic caster wheel core injection mold, comprising: the male mold, the female mold, the main glue injection port and the branch glue injection ports; the male mold comprises: a male mold cavity and a male mold base; the master mold includes: a female mold cavity and a female mold frame;
the male mold cavity is embedded in one side of the male mold frame close to the female mold, and the female mold cavity is arranged on one side of the female mold frame close to the male mold; the male mold cavity and the female mold cavity are closed to form a plurality of independent injection molding cavities, each injection molding cavity is communicated with one branch glue injection port, and the branch glue injection ports are communicated with the main glue injection port; the middle part of the injection molding cavity is provided with an upright post, and the upright post penetrates through the injection molding cavity and is arranged on the cavity of the male mold or the cavity of the female mold; and a convex block or a groove is also arranged on the outer side of the male die cavity, and the convex block or the groove on the male die cavity is matched with the groove or the convex block on the female die cavity.
Further, the male die further comprises a heating circuit, wherein the heating circuit is arranged on one side of the male die frame and used for heating and keeping the temperature of the injection molding material.
Furthermore, the main glue injection port is arranged on one side of the female die frame, and the branch glue injection ports are also arranged on one side of the female die.
Furthermore, a guide pillar is arranged on the male die frame, and a guide sleeve is arranged on the female die frame; the guide sleeve is matched with the guide pillar, and the guide sleeve is sleeved on the guide pillar.
Furthermore, plastic truckle wheel core injection mold has still included the interface of intaking, the interface of going out of setting up the cooling water course on injection mold for the material after the cooling injection moulding.
Further, the plastic caster wheel core injection mold further comprises an ejector pin arranged on the male mold, and the ejector pin is used for enabling the molded plastic sleeve to be separated from the cavity of the male mold.
Be different from prior art, above-mentioned technical scheme directly will be heated the plastics that melt through the injecting glue mouth and inject into the die cavity by injection molding machine high pressure, need explain that in the utility model discloses in the plastics of fuse state directly get into a plurality of independent injection molding chambeies that public mould die cavity, female mould chamber closure constitute through main injection molding mouth, branch injection molding mouth, no longer through the reposition of redundant personnel of runner, reduced thermal loss, make the plastics of fuse state can not take place the caking when getting into the injection molding chamber, harden scheduling problem; meanwhile, the runner is removed, so that the waste material rod is avoided, the production and operation cost is greatly reduced, and the injection molding quality is further improved.
Drawings
FIG. 1 is a structural view of a branch glue injection port;
FIG. 2 is a view of the injection molding cavity;
FIG. 3 is a schematic diagram of an injection position of a branch injection gate;
FIG. 4 is a diagram of a male mold structure;
FIG. 5 is a view showing a structure of a master model;
FIG. 6 is an assembly view of a plastic caster wheel core injection mold;
figure 7 wheel core layout.
Description of reference numerals:
1. a male die; 2. a female die; 3. a main glue injection port; 4. branch glue injection ports; 5. a heating circuit;
6. a wheel core; 7. a cavity groove;
11. a male mold cavity; 12. a male mold frame; 21. a master model cavity; 22. and a female die frame.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1 to 6, in the present embodiment, an injection mold for a plastic caster wheel core is provided, including: the male mold 1, the female mold 2, the main glue injection port 3 and the branch glue injection ports 4; the male mold 1 includes: a male mold cavity 11 and a male mold frame 12; the master model 2 includes: a master model cavity 21 and a master model frame 22. The male mold cavity 11 is embedded in one side of the male mold base 12 close to the female mold 2, and the female mold cavity 21 is arranged on one side of the female mold base 22 close to the male mold 1; the cavity groove 7 of the male mold cavity 11 and the cavity groove 7 of the female mold cavity 21 are closed to form a plurality of independent injection molding cavities, each injection molding cavity is communicated with one branch glue injection port 4, the branch glue injection ports 4 are communicated with the main glue injection port 3, and the wheel core 5 formed by injection molding is matched with the cavity groove 7; it should be noted that, in some embodiments, the branch glue injection port 4 is disposed on the arc surface of the wheel core 6; the middle part of the injection molding cavity is provided with an upright post which penetrates through the injection molding cavity and is arranged on the male mold cavity 11 or the female mold cavity 21; and a convex block or a groove is also arranged on the outer side of the male die cavity 11, and the convex block or the groove on the male die cavity 11 is matched with the groove or the convex block on the female die cavity 21. The upright post makes the middle part of the formed wheel core 6 hollow and is used for placing parts such as bearings and the like. One end of the upright post is arranged on any one of the male die cavity 11 or the female die cavity 21; when the male die cavity 11 and the female die cavity 21 are closed, the other end of the upright post is connected with the middle part of the other die cavity; of course, in some embodiments, the pillars may be disposed above the two cavities. In the injection molding process, one of the male mold 1 and the female mold 2 is fixed on an injection molding machine table, and the other is fixed on a mechanical arm; the male die 1 or the female die 2 fixed on the mechanical arm moves towards the male die 1 or the female die 2 fixed on the machine table; when the male mold cavity 11 and the female mold cavity 21 which are embedded in the male mold 1 and the female mold 2 are combined, the male mold cavity and the female mold cavity are completely closed to form a plurality of mutually independent and sealed injection molding cavities; at the moment, the molten injection molding material enters from the main injection molding opening 3, is directly injected into the injection molding cavity through the branch injection molding opening 4, and the wheel core 6 is taken out after the injection molding material is cooled. Above-mentioned technical scheme is through injecting glue mouth direct will be heated the plastics that melt and inject into the die cavity by injection molding machine high pressure, it is to be explained in the utility model discloses in the plastics of fuse state directly get into in the closed a plurality of independent injection molding chambeies that constitute of male mold die cavity 11, female mold cavity 21 through main injection molding mouth, branch injection molding mouth, no longer through the reposition of redundant personnel of runner, reduced thermal loss, make the plastics of fuse state can not take place the caking when getting into the injection molding chamber, harden scheduling problem; meanwhile, the runner is removed, so that the waste material rod is avoided, the production and operation cost is greatly reduced, and the injection molding quality is further improved.
Referring to fig. 4, in the present embodiment, in order to prevent the plastic material kept in a molten state from cooling, the male mold 1 further includes a heating circuit 5, and the heating circuit 5 is disposed at one side of the male mold frame 12 and is used for heating and maintaining the temperature of the injection molding material. The heating coil on the male die 1 can be arranged around the male die cavity 11 and is used for heating the molten plastic injected into the injection molding cavity; of course, in some embodiments, the female mold 2 may also include a heating circuit 5, and the heating circuit 5 is configured to be spirally wound on the sidewall of the branch glue injection opening 4 for preventing the temperature of the molten plastic from being lowered when the molten plastic flows through the branch glue injection opening 4; in this embodiment, the main glue injection port 3 is located on the master mold 2; of course, the position of the main glue injection port 3 can be changed, and the changed position is the branch glue injection port 4. This embodiment is directly connected with the chamber of moulding plastics through the injecting glue mouth to avoid the production of waste material pole, reduced production, operating cost by a wide margin, through set up in heating circuit 5 on 2 or the public mould 1 of master model has further improved the quality of moulding plastics.
Referring to fig. 5, in this embodiment, in order to prevent the male mold 1 and the female mold 2 from being dislocated when being closed and from being displaced after being closed, which affects the injection molding quality, the male mold frame 12 is further provided with a guide pillar, and the female mold frame 22 is further provided with a guide sleeve; the guide sleeve is matched with the guide pillar, and the guide sleeve is sleeved on the guide pillar. When the male die 1 and the female die 2 are closed, the guide pillar enters the guide sleeve. The male die cavity 11 and the female die cavity 21 are completely closed, and after the male die cavity and the female die cavity are closed, the male die 1 and the female die 2 are relatively static through the guide sleeve and the guide pillar, so that the injection molding quality is prevented from being influenced, and meanwhile, the production cost is reduced.
In this embodiment, plastic truckle wheel core injection mold has still included the interface of intaking, the interface of going out of setting up the cooling water course on injection mold for the material after the cooling injection moulding. In order to prevent the phenomenon of back overflow of high-temperature raw materials after injection molding in a high-precision injection mold, and simultaneously ensure the injection amount and the injection precision of the raw materials. The injection mold of the plastic sleeve further comprises a water inlet interface and a water outlet interface of a cooling water channel arranged on the injection mold, and the water inlet interface and the water outlet interface are used for cooling injection molding materials. Wherein, can all set up the cooling water course in public mould, female model cavity 21 both sides, the setting of both sides cooling water course has increased the heat exchange area of cooling water course with the intracavity high temperature raw and other materials of moulding plastics, makes its rapid cooling, effectively prevents the phenomenon that the back high temperature raw and other materials of moulding plastics are anti-excessive, has ensured the injection volume and the injection precision of raw and other materials, has improved injection mold's finished product precision.
In order to separate the injection molding part from the mold, the plastic caster wheel core injection mold further comprises ejector pins arranged on the male mold 1, and the ejector pins are used for separating the molded plastic sleeve from the male mold cavity 11. The thimble can be needle-like, column etc. and stretches out in public mould 1 after the injection molding solidifies, makes public mould 1 and injection molding separation, in this embodiment, the thimble is located the stand both sides, waits to stretch out simultaneously after cooling, pushes up the injection molding from public mould 1, and the setting of thimble will further improve mould injection efficiency, improves the productivity of mould in the unit interval simultaneously.
It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a plastic truckle wheel core injection mold which characterized in that includes: the male mold, the female mold, the main glue injection port and the branch glue injection ports; the male mold comprises: a male mold cavity and a male mold base; the master mold includes: a female mold cavity and a female mold frame;
the male mold cavity is embedded in one side of the male mold frame close to the female mold, and the female mold cavity is arranged on one side of the female mold frame close to the male mold; the male mold cavity and the female mold cavity are closed to form a plurality of independent injection molding cavities, each injection molding cavity is communicated with one branch glue injection port, and the branch glue injection ports are communicated with the main glue injection port; the middle part of the injection molding cavity is provided with an upright post, and the upright post penetrates through the injection molding cavity and is arranged on the cavity of the male mold or the cavity of the female mold; and a convex block or a groove is also arranged on the outer side of the male die cavity, and the convex block or the groove on the male die cavity is matched with the groove or the convex block on the female die cavity.
2. The plastic caster wheel core injection mold of claim 1, wherein the male mold further comprises a heating circuit disposed at one side of the male mold frame for heating and maintaining the temperature of the injection molding material.
3. The plastic caster wheel core injection mold of claim 1, wherein the main glue injection port is disposed at one side of the female mold frame, and the branch glue injection ports are also disposed at one side of the female mold.
4. The plastic caster wheel core injection mold of claim 1, wherein the male mold frame is further provided with a guide post, and the female mold frame is further provided with a guide sleeve; the guide sleeve is matched with the guide pillar, and the guide sleeve is sleeved on the guide pillar.
5. The plastic caster wheel core injection mold of claim 1, further comprising a water inlet port and a water outlet port of a cooling water channel disposed on the injection mold for cooling the injection molded material.
6. The plastic caster wheel core injection mold of claim 1, further comprising ejector pins disposed on the male mold, wherein the ejector pins are used to separate the molded wheel core from the cavity of the male mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020452395.XU CN212072771U (en) | 2020-04-01 | 2020-04-01 | Plastic truckle wheel core injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020452395.XU CN212072771U (en) | 2020-04-01 | 2020-04-01 | Plastic truckle wheel core injection mold |
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| CN212072771U true CN212072771U (en) | 2020-12-04 |
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| CN202020452395.XU Active CN212072771U (en) | 2020-04-01 | 2020-04-01 | Plastic truckle wheel core injection mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114454431A (en) * | 2021-12-17 | 2022-05-10 | 烟台耀民科工贸有限公司 | Forming die of thermoplastic elastomer plug gasket and production process thereof |
-
2020
- 2020-04-01 CN CN202020452395.XU patent/CN212072771U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114454431A (en) * | 2021-12-17 | 2022-05-10 | 烟台耀民科工贸有限公司 | Forming die of thermoplastic elastomer plug gasket and production process thereof |
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