CN209920437U - Injection mold core rod structure and injection mold - Google Patents
Injection mold core rod structure and injection mold Download PDFInfo
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- CN209920437U CN209920437U CN201920315059.8U CN201920315059U CN209920437U CN 209920437 U CN209920437 U CN 209920437U CN 201920315059 U CN201920315059 U CN 201920315059U CN 209920437 U CN209920437 U CN 209920437U
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- pin
- hole
- injection mold
- core rod
- blind hole
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Abstract
The utility model relates to an injection mold core rod structure and an injection mold, which comprises a rod body, a pin and a core rod head; the upper end of the rod body is provided with a blind hole, and the side wall of the blind hole part is provided with a pair of pin holes; a through hole which vertically penetrates through the central axis is formed in the corresponding position of the head of the mandrel; one end of the head of the mandrel is inserted into the blind hole, and the other end of the head of the mandrel extends out of the blind hole; the pin passes through the pin hole and the through hole, and the outer diameter of the pin is matched with the hole diameter of the pin hole and the hole diameter of the blind hole. The utility model discloses a split type plug structure, the pole body is thick, and the plug head is short, and intensity is better to the machining precision is higher, and the life-span is longer. As a mould wearing part, only the head part of the mandrel needs to be replaced, and the time and the cost are greatly reduced.
Description
Technical Field
The utility model relates to an injection mold plug structure to and the injection mold of this plug of installation.
Background
The injection mold is often provided with a certain core rod structure with an overlong length (more than 500mm), the core rod structure can be bent or broken when the mold is used for a long time, the core rod structure belongs to a vulnerable part of the mold, the core rod structure is often replaced, and the time and the cost for re-processing the part are very long and expensive.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel injection mold plug structure reduces the crooked or economic loss who splits and lead to the fact to manufacturing enterprise of plug, accelerates the speed of changing the plug simultaneously, improves production efficiency.
The utility model adopts the following technical proposal:
an injection mold core rod structure comprises a rod body 1, a pin 2 and a core rod head 3; the upper end of the rod body 1 is provided with a blind hole, and the side wall of the blind hole part is provided with a pair of pin holes; a through hole which vertically penetrates through the central axis is formed in the corresponding position of the mandrel head 3; one end of the mandrel head 3 is inserted into the blind hole, and the other end of the mandrel head extends out of the blind hole; the pin 2 penetrates through the pin hole and the through hole, and the outer diameter of the pin 2 is matched with the hole diameter of the pin hole and the hole diameter of the blind hole.
Further, the mandrel head 3 has common spare parts of different specifications.
Further, the length of the pin 2 is equal to the outer diameter of the shaft 1.
Further, the length of the mandrel head 3 is smaller than that of the shaft 1.
Further, the main body part of the shape of the mandrel head 3 is cylindrical, and the shape of the shaft 1 is cylindrical.
Further, SK4 was used as the material of the shaft 1 without heat treatment, and SKD61 was used as the material of the mandrel head 3 after nitriding treatment.
The mold for installing the core rod structure of the injection mold comprises a mold core 4, wherein the mold core 4 is fixed on a backing plate 5, and a rod body 1 is vertically fixed on the backing plate 5 and is arranged inside the mold core 4.
Further, the backing plate 5 is horizontally arranged.
Further, the mold is a vehicle lamp component injection mold.
The beneficial effects of the utility model reside in that:
1) the split core rod structure is adopted, the material of the rod body is SK4 (heat treatment is not needed), the material of the head part of the core rod is SKD61 (nitriding treatment is needed), compared with the conventional core rod which is integrally made of SKD61, the processing time can be shortened by 1-2 days, and the processing cost can be reduced by about 50%;
2) compared with the conventional core rod structure, due to the adoption of the split design, the rod body is thick, the head of the core rod is short, the strength is better, the processing precision is higher, and the service life is longer.
3) Most importantly, as a quick-wear part of the die, once the quick-wear part is damaged, the whole conventional core rod is scrapped, and the split core rod structure generally only needs to replace the head part of the core rod, so that the time and the cost are greatly reduced.
4) Under the condition that a plurality of mandrel structures are arranged on one die, the mandrel heads are made into standard lengths, spare parts are made, if the mandrels are damaged in the die production process, the spare parts can be quickly replaced, the die repair time is greatly reduced, and the production task is not influenced.
Drawings
FIG. 1 is a front view of a prior art injection mold core pin configuration.
Fig. 2 is a left side view of a prior art injection mold core pin configuration.
Fig. 3 is a front view of the core rod structure of the injection mold of the present invention.
Fig. 4 is a sectional view taken along line a-a in fig. 3.
Fig. 5 is a schematic view of the injection mold core rod structure according to the present invention.
Fig. 6 is a schematic diagram of the injection mold core rod structure of the present invention installed in the injection mold for the vehicle lamp component.
In the figure, 1 is a rod body, 2 is a pin, 3 is a core rod head, 4 is a mold core, and 5 is a backing plate.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 3-6, an injection mold core rod structure comprises a rod body 1, a pin 2 and a core rod head 3; the upper end of the rod body 1 is provided with a blind hole, and the side wall of the blind hole part is provided with a pair of pin holes; a through hole which vertically penetrates through the central axis is formed in the corresponding position of the mandrel head 3; one end of the mandrel head 3 is inserted into the blind hole, and the other end of the mandrel head extends out of the blind hole; the pin 2 penetrates through the pin hole and the through hole, and the outer diameter of the pin 2 is matched with the hole diameter of the pin hole and the hole diameter of the blind hole.
In this embodiment, the mandrel head 3 has common spare parts of different specifications.
In this embodiment, referring to fig. 5, the length of the pin 2 is equal to the outer diameter of the shaft 1.
In this embodiment, referring to fig. 4, the length of the mandrel head 3 is smaller than that of the shaft 1.
In this embodiment, referring to fig. 4-5, the body portion of the shape of the mandrel head 3 is cylindrical and the shaft 1 is cylindrical in shape.
In this example, SK4 was used as the material of the shaft 1 without heat treatment, and SKD61 was used as the material of the mandrel head 3 after nitriding treatment.
The utility model provides an install foretell injection mold plug structure's car light part injection mold, includes mould benevolence 4, mould benevolence 4 is fixed on backing plate 5, pole body 1 is upright fixed on backing plate 5 to locate inside 4 of mould benevolence.
The utility model discloses a design neotype split type plug structure for this type of structure is longer in the use life-span of mould, in case damage the back and repair the mould time and shorten greatly, thereby can reduce production's cost.
The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements on the above embodiments without departing from the general concept of the present invention, and these changes or improvements should fall within the scope of the present invention.
Claims (9)
1. The utility model provides an injection mold plug structure which characterized in that:
comprises a rod body (1), a pin (2) and a mandrel head (3);
the upper end of the rod body (1) is provided with a blind hole, and the side wall of the blind hole part is provided with a pair of pin holes; a through hole which vertically penetrates through the central axis is formed in the corresponding position of the mandrel head (3);
one end of the mandrel head (3) is inserted into the blind hole, and the other end of the mandrel head extends out of the blind hole;
the pin (2) penetrates through the pin hole and the through hole, and the outer diameter of the pin (2) is matched with the hole diameter of the pin hole and the hole diameter of the blind hole.
2. The injection mold core rod structure of claim 1, wherein: the mandrel head (3) has universal spare parts with different specifications.
3. The injection mold core rod structure of claim 1, wherein: the length of the pin (2) is equal to the outer diameter of the shaft body (1).
4. The injection mold core rod structure of claim 1, wherein: the length of the mandrel head (3) is less than that of the shaft (1).
5. The injection mold core rod structure of claim 1, wherein: the main body part of the shape of the mandrel head (3) is cylindrical, and the shape of the mandrel body (1) is cylindrical.
6. The injection mold core rod structure of claim 1, wherein: the material of the shaft body (1) adopts SK4 without heat treatment, and the material of the mandrel head (3) adopts SKD61 after nitriding treatment.
7. A mold for mounting the core rod structure of an injection mold according to claim 1, wherein: the novel plastic pin comprises a die core (4), wherein the die core (4) is fixed on a backing plate (5), and a pin body (1) is vertically fixed on the backing plate (5) and arranged inside the die core (4).
8. The mold of claim 7, wherein: the backing plate (5) is horizontally arranged.
9. The mold of claim 7, wherein: the mold is an injection mold for a vehicle lamp component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920315059.8U CN209920437U (en) | 2019-03-13 | 2019-03-13 | Injection mold core rod structure and injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920315059.8U CN209920437U (en) | 2019-03-13 | 2019-03-13 | Injection mold core rod structure and injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209920437U true CN209920437U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920315059.8U Active CN209920437U (en) | 2019-03-13 | 2019-03-13 | Injection mold core rod structure and injection mold |
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| CN (1) | CN209920437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719906A (en) * | 2019-03-13 | 2019-05-07 | 华域视觉科技(上海)有限公司 | A kind of injection mold mandrel structure and injection mold |
-
2019
- 2019-03-13 CN CN201920315059.8U patent/CN209920437U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719906A (en) * | 2019-03-13 | 2019-05-07 | 华域视觉科技(上海)有限公司 | A kind of injection mold mandrel structure and injection mold |
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