CN211616412U - Novel injection mold of cartridge steel needle in mould - Google Patents
Novel injection mold of cartridge steel needle in mould Download PDFInfo
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- CN211616412U CN211616412U CN201922008716.7U CN201922008716U CN211616412U CN 211616412 U CN211616412 U CN 211616412U CN 201922008716 U CN201922008716 U CN 201922008716U CN 211616412 U CN211616412 U CN 211616412U
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Abstract
The utility model discloses a novel injection mold with steel needles inserted in the mold, which comprises a front template and a rear template, wherein the front template comprises a needle positioning plate, a needle clearance plate and a front mold core, the front mold core is fixedly arranged at the bottom of the front template, and the needle clearance plate is arranged between the needle positioning plate and the front mold core; the rear template comprises a rear die core, and the rear die core is provided with a needle piece position corresponding to the second pore channel of the front die core; when the mold is closed, a closed injection molding cavity is formed between the front mold core and the rear mold core, and the steel needle penetrates through the injection molding cavity. The utility model discloses be provided with the preceding template that can install the steel needle, insert the steel needle earlier before moulding plastics in the template in the front, then carry out the production of moulding plastics again, need not artifical secondary at plastic part cartridge steel needle to the condition of highly nonconformity between each metal steel needle has greatly promoted yields and production efficiency effectively.
Description
Technical Field
The utility model relates to an injection mold technical field, in particular to novel injection mold of cartridge steel needle in mould.
Background
With the development of production technology, the existing injection molding products become more and more complex. Referring to fig. 4 and 5, a plastic product is formed by combining a metal steel needle and a plastic part. The existing production method is to manufacture the plastic part and then manually insert the metal steel needle on the plastic part. The production method has more processes; in addition, the metal steel needles are easily inserted by manpower, so that the heights of the metal steel needles are inconsistent, and the defective rate is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a novel injection mold of cartridge steel needle in the mould.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a novel injection mold for inserting steel needles in a mold comprises a front mold plate and a rear mold plate, wherein the front mold plate comprises a needle piece positioning plate, a needle piece clearance plate and a front mold core, the front mold core is fixedly arranged at the bottom of the front mold plate, the needle piece clearance plate is arranged between the needle piece positioning plate and the front mold core, the needle piece clearance plate is provided with a plurality of first pore passages for fixing the steel needles, the front mold core is provided with second pore passages corresponding to the first pore passages, the needle piece positioning plate is provided with a positioning recess, and in the process of fixing the steel needles in the front mold plate, the tail ends of the steel needles sequentially pass through the second pore passages of the front mold core and the first pore passages of the needle piece clearance plate until the tail ends of the steel needles are completely sunk into the positioning recess of the needle piece positioning plate;
the rear template comprises a rear die core, and the rear die core is provided with a needle piece position corresponding to the second pore channel of the front die core; when the die is closed, a closed injection molding cavity is formed between the front die core and the rear die core, and the steel needle penetrates through the injection molding cavity.
The front template further comprises a sprue bush, the needle positioning plate is provided with a first material conveying channel and a second material conveying channel, the first material conveying channel is transversely arranged, the second material conveying channel is longitudinally arranged, the front mold core is provided with a third material conveying channel, the sprue bush is communicated with the first material conveying channel of the needle positioning plate, the first material conveying channel is communicated with the second material conveying channel, and the second material conveying channel of the needle positioning plate is communicated with the third material conveying channel of the front mold core; during injection molding, molten plastic is injected into the sprue channel of the sprue sleeve, flows through the first material conveying channel, the second material conveying channel and the third material conveying channel in sequence through the sprue channel, and is injected into the injection molding cavity through the third material conveying channel.
Further elaborating, a positioning insert is fixedly installed on the rear mold core, and a positioning hole is formed in the positioning insert; and during die assembly, the head end of the steel needle is inserted into the positioning hole of the positioning insert.
Further elaborating, the front template also comprises a die assembly guide post, and the rear template is provided with a die assembly guide hole; and during die assembly, the die assembly guide post is inserted into the die assembly guide hole, so that the front template and the rear template are accurately assembled.
The beneficial effects of the utility model reside in that: the utility model discloses be provided with the preceding template that can install the steel needle, insert the steel needle earlier before moulding plastics in the template in the front, then carry out the production of moulding plastics again, need not artifical secondary at plastic part cartridge steel needle to the condition of highly nonconformity between each metal steel needle has greatly promoted yields and production efficiency effectively.
Drawings
Fig. 1 is a schematic structural view of the utility model in the mold opening state.
Fig. 2 is a schematic structural diagram of the present invention in a mold closing state.
Fig. 3 is a schematic structural view of the front mold plate.
Fig. 4 is a schematic structural view of an injection molded product in which a steel needle is embedded.
Fig. 5 is a sectional view of an injection molded product in which a steel needle is embedded.
Reference numerals: 10. a front template; 11. a needle positioning plate; 111. a positioning pocket; 112. a first material conveying channel; 113. a second material conveying channel; 12. a needle part clearance avoiding plate; 121. a first duct; 13. a front mold core; 131. a second duct; 132. a third material conveying channel; 14. a sprue bush; 141. pouring a material channel; 15. closing the die guide post;
20. a rear template; 201. a die closing guide hole; 21. a rear mold core; 22. positioning the insert; 221. positioning holes;
30. a steel needle; 31. a plastic component.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 5, a novel injection mold for inserting steel needles in a mold includes a front mold plate 10 and a rear mold plate 20, wherein the front mold plate 10 includes a needle positioning plate 11, a needle avoiding plate 12 and a front mold core 13, the front mold core 13 is fixedly disposed at the bottom of the front mold plate 10, the needle avoiding plate 12 is disposed between the needle positioning plate 11 and the front mold core 13, the needle avoiding plate 12 is provided with a plurality of first holes 121 for fixing the steel needles 30, the front mold core 13 is provided with second holes 131 corresponding to the first holes 121, the needle positioning plate 11 is provided with a positioning recess 111, and during the process of fixing the steel needles 30 in the front mold plate 10, the tail ends of the steel needles 30 sequentially pass through the second holes 131 of the front mold core 13 and the first holes 121 of the needle avoiding plate 12 until the tail ends of the steel needles 30 completely sink into the positioning recess 111 of the needle positioning plate 11;
the rear template 20 comprises a rear die core 21, and the rear die core 21 is provided with a needle piece position corresponding to the second pore 131 of the front die core 13; when the mold is closed, a closed injection molding cavity is formed between the front mold core 13 and the rear mold core 21, and the steel needle 30 penetrates through the injection molding cavity.
Referring to fig. 1 and 3, the front mold plate 10 further includes a sprue bush 14, the needle positioning plate 11 is provided with a first material delivery channel 112 and a second material delivery channel 113, the first material delivery channel 112 is transversely disposed, the second material delivery channel 113 is longitudinally disposed, the front mold core 13 is provided with a third material delivery channel 132, the sprue 141 of the sprue bush 14 is communicated with the first material delivery channel 112 of the needle positioning plate 11, the first material delivery channel 112 is communicated with the second material delivery channel 113, and the second material delivery channel 113 of the needle positioning plate 11 is communicated with the third material delivery channel 132 of the front mold core 13; during injection molding, molten plastic is injected into the sprue channel 141 of the sprue bush 14, flows through the first material conveying channel 112, the second material conveying channel 113 and the third material conveying channel 132 in sequence through the sprue channel 141, and is injected into the injection molding cavity through the third material conveying channel 132.
Referring to fig. 1, a positioning insert 22 is fixedly installed on the rear mold core 21, and a positioning hole 221 is formed in the positioning insert 22; when the mold is closed, the tip end of the steel pin 30 is inserted into the positioning hole 221 of the positioning insert 22. The second hole 131 of the front mold core 13 is in interference fit with the steel needle 30, so that the steel needle 30 can be inserted into the front mold core 13 without falling off. Because the steel needle 30 is inserted into the front template 10 by manual operation, the tail end of the steel needle 30 cannot be accurately ensured to be completely sunk into the positioning recess 111 of the needle positioning plate 11 in the process of inserting the steel needle 30, and in order to ensure the accuracy of the height position of the plastic part in which the steel needle 30 is embedded, the positioning insert 22 is provided with a positioning hole 221; when the mold is closed, the head end of the steel pin 30 is inserted into the positioning hole 221 of the positioning insert 22, as shown in fig. 3, the head end of the steel pin 30 is provided with a flange, and if the tail end of the steel pin 30 is not completely sunk into the positioning recess 111 of the needle positioning plate 11, the positioning insert 22 can push the steel pin 30 into the positioning recess 111 of the needle positioning plate 11 during the mold closing, so as to ensure the accuracy of the height position of the steel pin 30.
Referring to fig. 1, the front mold plate 10 further includes a mold clamping guide post 15, and the rear mold plate 20 is provided with a mold clamping guide hole 201; when the mold is closed, the mold closing guide post 15 is inserted into the mold closing guide hole 201, and the front mold plate 10 and the rear mold plate 20 are accurately closed.
The specific working mode is as follows: as shown in fig. 1, before performing mold closing and injection molding, a steel needle 30 needs to be fixed at a front mold plate 10, and then mold closing is performed, in the process of mold closing, a mold closing guide post 15 of the front mold plate 10 is inserted into a mold closing guide hole 201 of a rear mold plate 20, so that the front mold plate 10 and the rear mold plate 20 are accurately closed, and the head end of the steel needle 30 is inserted into a positioning hole 221 of a positioning insert 22, so as to ensure the accuracy of the height position of the steel needle 30; as shown in fig. 2, the rubber is then injection molded into the sprue bushing 14 by an injection molding machine, not shown, to complete the final injection molding. As shown in fig. 4 and 5, a steel needle 30 of the completed injection molded product is embedded in a plastic member 31.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides a novel injection mold of cartridge steel needle in mould which characterized in that: the front template (10) comprises a needle piece positioning plate (11), a needle piece clearance plate (12) and a front mold core (13), wherein the front mold core (13) is fixedly arranged at the bottom of the front template (10), the needle piece clearance plate (12) is arranged between the needle piece positioning plate (11) and the front mold core (13), the needle piece clearance plate (12) is provided with a plurality of first pore channels (121) for fixing steel needles, the front mold core (13) is provided with second pore channels (131) corresponding to the first pore channels (121), the needle piece positioning plate (11) is provided with a positioning concave cavity (111), and in the process of fixing the steel needles on the front template (10), the tail ends of the steel needles sequentially pass through the second pore channels (131) of the front mold core (13) and the first pore channels (121) of the needle piece clearance plate (12), until the tail end of the steel needle is completely sunk into the positioning recess (111) of the needle positioning plate (11);
the rear template (20) comprises a rear mold core (21), and the rear mold core (21) is provided with a needle piece position corresponding to the second pore passage (131) of the front mold core (13); when the die is closed, a closed injection molding cavity is formed between the front die core (13) and the rear die core (21), and a steel needle penetrates through the injection molding cavity.
2. The novel injection mold for the in-mold steel needle insertion according to claim 1, characterized in that: the front template (10) further comprises a sprue bush (14), the needle positioning plate (11) is provided with a first material conveying channel (112) and a second material conveying channel (113), the first material conveying channel (112) is transversely arranged, the second material conveying channel (113) is longitudinally arranged, the front mold core (13) is provided with a third material conveying channel (132), the sprue channel (141) of the sprue bush (14) is communicated with the first material conveying channel (112) of the needle positioning plate (11), the first material conveying channel (112) is communicated with the second material conveying channel (113), and the second material conveying channel (113) of the needle positioning plate (11) is communicated with the third material conveying channel (132) of the front mold core (13); during injection molding, molten plastic is injected into the sprue channel (141) of the sprue bush (14), the sprue channel (141) sequentially flows through the first material conveying channel (112), the second material conveying channel (113) and the third material conveying channel (132), and the third material conveying channel (132) is injected into the injection molding cavity.
3. The novel injection mold for the in-mold steel needle insertion according to claim 1, characterized in that: the rear die core (21) is fixedly provided with a positioning insert (22), and the positioning insert (22) is provided with a positioning hole (221); when the die is closed, the head end of the steel needle is inserted into the positioning hole (221) of the positioning insert (22).
4. The novel injection mold for the in-mold steel needle insertion according to claim 1, characterized in that: the front template (10) further comprises a die assembly guide post (15), and the rear template (20) is provided with a die assembly guide hole (201); when the mold is closed, the mold closing guide post (15) is inserted into the mold closing guide hole (201), so that the front mold plate (10) and the rear mold plate (20) are accurately closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922008716.7U CN211616412U (en) | 2019-11-20 | 2019-11-20 | Novel injection mold of cartridge steel needle in mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922008716.7U CN211616412U (en) | 2019-11-20 | 2019-11-20 | Novel injection mold of cartridge steel needle in mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211616412U true CN211616412U (en) | 2020-10-02 |
Family
ID=72626010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922008716.7U Active CN211616412U (en) | 2019-11-20 | 2019-11-20 | Novel injection mold of cartridge steel needle in mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211616412U (en) |
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2019
- 2019-11-20 CN CN201922008716.7U patent/CN211616412U/en active Active
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