CN210116195U - Powder pressing tubular product mold - Google Patents
Powder pressing tubular product mold Download PDFInfo
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- CN210116195U CN210116195U CN201920472429.9U CN201920472429U CN210116195U CN 210116195 U CN210116195 U CN 210116195U CN 201920472429 U CN201920472429 U CN 201920472429U CN 210116195 U CN210116195 U CN 210116195U
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Abstract
The utility model relates to a tubulose material press forming technical field is powder suppression tubulose product mould. The powder pressing tubular product mould comprises a cylindrical core part, a cylindrical outer mould and a cylindrical forming mould, wherein the outer mould can be sleeved on the periphery of the core part to form a cavity which is a forming cavity of a formed product; the mould for pressing the powder into the tubular product further comprises a U-shaped cushion block which is a first U-shaped cushion block, wherein an opening is formed in the side face of the U-shaped cushion block, a hollow core is arranged in the middle of the U-shaped cushion block, the hollow core is larger than a boss, and the height of the boss is larger than that of the first U-shaped cushion block.
Description
Technical Field
The invention relates to the technical field of pressing and forming of tubular materials, in particular to a die for pressing powder into a tubular product and a manufacturing method of the tubular product.
Background
In industrial production, it is often necessary to compact the powder into a tubular product which is a hollow cylindrical structure.
The powder pressing tubular product is formed by pressing a mould for pressing powder into the tubular product, the mould for pressing the powder into the tubular product comprises a cylindrical core part, a cylindrical outer mould and a cylindrical forming mould, the outer mould can be sleeved on the periphery of the core part and forms a cavity, the cavity is a forming cavity of the formed product, and the forming mould is in a structure matched with the forming cavity and can slide downwards from the upper surface of the forming cavity; when the powder compacting device is used, the outer die can be sleeved on the periphery of the core part, a forming cavity is formed outside the core part and inside the outer die, powder is filled into the forming cavity, and the forming die slides downwards from the upper surface of the forming cavity to compact the powder in the forming cavity, so that a tubular product is produced.
In the prior art, a mould for pressing powder into a tubular product cannot compact two ends of the product, the product is formed in one step, and the product has the phenomenon that the densities of the two pressed ends are inconsistent, so that the quality of the product is influenced.
Disclosure of Invention
The invention aims to overcome the defects and provide a die for pressing powder into a tubular product, wherein the uniformity of the pressed tubular material is good.
The technical scheme of the mould for pressing the powder into the tubular product is realized in such a way that the mould for pressing the powder into the tubular product comprises a cylindrical core part, a cylindrical outer mould and a cylindrical forming mould, wherein the outer mould can be sleeved on the periphery of the core part to form a cavity which is a forming cavity of the formed product, and the forming mould is in a structure matched with the forming cavity and can slide downwards from the upper surface of the forming cavity; the method is characterized in that: a circle of bosses are arranged below the core part and are structures matched in the middle of the outer die;
the U-shaped cushion block is a first U-shaped cushion block, an opening is formed in the side face of the U-shaped cushion block, a hollow core is arranged in the middle of the U-shaped cushion block, the width of the hollow core is larger than the diameter of a boss, and the height of the boss is larger than that of the first U-shaped cushion block;
the U-shaped cushion block is a second U-shaped cushion block;
the height of the first U-shaped cushion block is greater than that of the second U-shaped cushion block;
the mould stripping device also comprises a mould stripping ring, wherein the mould stripping ring is of a cylindrical structure, and the section of the mould stripping ring and the outer mould are of the same annular structure.
Furthermore, the mold stripping ring is multiple, and the multiple mold stripping rings have different heights.
Furthermore, the device also comprises another U-shaped cushion block, and the U-shaped cushion block is a third U-shaped cushion block; the height of the second U-shaped cushion block is greater than that of the third U-shaped cushion block;
furthermore, the core part, the outer die, the forming die, the die withdrawing ring and the U-shaped cushion block are all made of die steel.
The technical scheme of the manufacturing method of the tubular product is realized in such a way that the manufacturing method of the tubular product uses the powder pressing to manufacture the tubular product mould, and comprises the following steps:
a. the method comprises the following steps of firstly placing a first U-shaped cushion block on a pressing platform of a press, placing a boss of a core part in a hollow core of the first U-shaped cushion block, sleeving an outer die and a die withdrawing ring on the core part, forming a forming cavity of a formed tubular product in the outer die and outside the core part, and filling powder into the cavity (in order to ensure the consistency of the product, powder with a certain weight can be weighed, so that the powder used by each product is the same);
b. the lower part of a forming die is deeply inserted into the cavity, the upper part of the forming die is higher than the upper part of a stripper ring, a lower pressing head of a press is started, the forming die moves downwards to extrude powder downwards, and the first extrusion forming is completed, wherein the first extrusion forming extrudes a product from top to bottom;
c. the first U-shaped cushion block is replaced by a second U-shaped cushion block, the height of the first U-shaped cushion block is greater than that of the second U-shaped cushion block, namely the height of the second U-shaped cushion block is less than that of the first U-shaped cushion block, at the moment, the lower surface of a forming die is spaced from the upper surface of the second U-shaped cushion block, a lower pressing head of a pressing machine is started, and the boss is arranged below a core part and acts on powder, actually acts on a product upwards and extrudes the product from bottom to top; completing the second extrusion forming;
d. and (4) taking down the outer die and taking out the tubular product pressed by the powder.
Further, the method also comprises the following step e, and the technical scheme of the step is as follows:
e. and taking the demolding ring down from the outer mold, replacing the U-shaped cushion block on the outer mold, placing the demolding ring below the outer mold, starting a lower pressing head of the press, and pressing the core part downwards by the lower pressing head to enable the core part and the outer mold to fall off.
The invention has the advantages that the powder pressing tubular product mold and the manufacturing method of the tubular product have good uniformity, easy control of height and small horizontal height deviation.
Drawings
FIG. 1 is a schematic structural diagram of the U-shaped cushion block, the core part, the outer die and the stripping ring of the invention when disassembled.
Fig. 2 is a schematic view of the structure of the present invention in a state of producing a tubular product.
Fig. 3 is a schematic view of the structure of the present invention in a state of producing a tubular product.
Fig. 4 is a schematic view of the structure of the present invention in a state of producing a tubular product.
Fig. 5 is a schematic view of the structure of the present invention in a state of producing a tubular product.
Wherein: 1. the die comprises a core 2, an outer die 3, a forming die 4, a forming cavity 101, a boss 51, a first U-shaped cushion block 52, a second U-shaped cushion block 503, an opening 504, a hollow core 6, a demoulding ring 71, a pressing platform 72 and a lower pressing head.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the powder pressing tubular product mold comprises a cylindrical core part 1, a cylindrical outer mold 2 and a cylindrical forming mold 3, wherein the outer mold can be sleeved around the core part and form a cavity which is a forming cavity 4 of a formed product, and the forming mold is in a structure matched with the forming cavity and can slide downwards from the upper surface of the forming cavity; the method is characterized in that: a circle of boss 101 is arranged below the core 1, the boss 101 is matched in the middle of the outer die 2, namely, the outer diameter of the boss 101 is equal to the inner diameter of the outer die;
the U-shaped cushion block is a first U-shaped cushion block 51, an opening 503 is formed in the side face of the U-shaped cushion block, a hollow core 504 is arranged in the middle of the U-shaped cushion block, the width of the hollow core is larger than the diameter of a boss, and the height of the boss is larger than that of the first U-shaped cushion block;
it also includes another U-shaped spacer block, which is a second U-shaped spacer block 52;
the height of the first U-shaped cushion block is greater than that of the second U-shaped cushion block;
the die stripping device also comprises a die stripping ring 6, wherein the die stripping ring is of a cylindrical structure, and the cross section of the die stripping ring is of an annular structure the same as that of the outer die.
Furthermore, the mold stripping ring is multiple, and the multiple mold stripping rings have different heights.
Furthermore, the device also comprises another U-shaped cushion block, and the U-shaped cushion block is a third U-shaped cushion block; the height of the second U-shaped cushion block is greater than that of the third U-shaped cushion block;
furthermore, the core part, the outer die, the forming die, the die withdrawing ring and the U-shaped cushion block are all made of die steel.
When the powder is pressed into a tubular product mould to produce a tubular product, the following steps are carried out:
a. as shown in fig. 2, first, a first U-shaped pad 51 is placed on a pressing platform 71 of a press, a boss of a core 1 is placed in a hollow core of the first U-shaped pad, an outer die 2 is sleeved on the periphery of the core 1 at a lower die stripping ring 6 and an upper die stripping ring 6, a molding cavity 4 for molding a tubular product is formed in the outer die 2 and outside the core 1, and powder is filled in the cavity (in order to ensure the consistency of the product, a certain weight of powder can be weighed, so that the powder used by each product is the same);
b. as shown in fig. 2, the lower part of the forming die 3 is deeply inserted into the cavity, the upper part of the forming die is higher than the upper part of the die-releasing ring 6, a lower pressing head 72 of a press is started, the forming die moves downwards to extrude the powder downwards to complete the first extrusion forming, the direction of the pressing is shown as A in fig. 3, the pressing extrudes the product from top to bottom, and the state after the action is completed is shown as fig. 3;
c. as shown in fig. 4, the first U-shaped cushion block is replaced by a second U-shaped cushion block 52, and since the height of the first U-shaped cushion block is greater than that of the second U-shaped cushion block, that is, the height of the second U-shaped cushion block is less than that of the first U-shaped cushion block, and there is a distance between the lower surface of the forming die 3 and the upper surface of the second U-shaped cushion block 52, the lower press head of the press is started, and since the lower surface of the core 1 has a circle of bosses, the bosses act on the powder, and actually act upwards on the product, and the product is pressed from bottom to top; completing the second extrusion forming, wherein the direction of the extrusion forming is shown as B in the figure; the state after the action is completed is shown in fig. 4;
d. and (4) taking down the outer die and taking out the tubular product pressed by the powder.
The invention adopts two times of pressing, namely the first pressing from top to bottom and the second pressing from bottom to top, so that the two ends of the product have consistent firmness, the quality of the product is improved, and the aim of the invention is fulfilled.
In addition, the height of the product is determined by the height of the U-shaped cushion block, the height of the outer die, the height of the die withdrawing ring, the height of the boss and the height of the forming die, the components are all rigid, the height of the produced product is consistent, and the consistency of the product is ensured.
Further, the method also comprises the following step e, and the technical scheme of the step is as follows:
e. and taking the demolding ring down from the outer mold, replacing the U-shaped cushion block on the outer mold, placing the demolding ring below the outer mold, starting a lower pressing head of the press, and pressing the core part downwards by the lower pressing head to enable the core part and the outer mold to fall off. The state after the completion of the operation is shown in fig. 5, and the pressing direction is shown as C in the figure.
Therefore, the product can be withdrawn from the outside of the mold core, and the product is more convenient to take out.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (4)
1. The powder pressing tubular product mold comprises a cylindrical core part, a cylindrical outer mold and a cylindrical forming mold, wherein the outer mold can be sleeved on the periphery of the core part to form a cavity, the cavity is a forming cavity of a formed product, and the forming mold is in a structure matched with the forming cavity and can slide downwards from the upper surface of the forming cavity; the method is characterized in that: a circle of bosses are arranged below the core part and are structures matched in the middle of the outer die;
the U-shaped cushion block is a first U-shaped cushion block, an opening is formed in the side face of the U-shaped cushion block, a hollow core is arranged in the middle of the U-shaped cushion block, the width of the hollow core is larger than the diameter of a boss, and the height of the boss is larger than that of the first U-shaped cushion block;
the U-shaped cushion block is a second U-shaped cushion block;
the height of the first U-shaped cushion block is greater than that of the second U-shaped cushion block;
the mould stripping device also comprises a mould stripping ring, wherein the mould stripping ring is of a cylindrical structure, and the section of the mould stripping ring and the outer mould are of the same annular structure.
2. The mold for pressing powder material into tubular products according to claim 1, wherein: the mold stripping ring is multiple, and the multiple mold stripping rings have different heights.
3. The powder compaction tubular product mold of claim 1 or 2, wherein: the U-shaped cushion block is a third U-shaped cushion block; the height of the second U-shaped cushion block is larger than that of the third U-shaped cushion block.
4. The mold for pressing powder material into tubular products according to claim 1, wherein: the core, the outer die, the forming die, the die withdrawing ring and the U-shaped cushion block are all made of die steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920472429.9U CN210116195U (en) | 2019-04-10 | 2019-04-10 | Powder pressing tubular product mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920472429.9U CN210116195U (en) | 2019-04-10 | 2019-04-10 | Powder pressing tubular product mold |
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| Publication Number | Publication Date |
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| CN210116195U true CN210116195U (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920472429.9U Active CN210116195U (en) | 2019-04-10 | 2019-04-10 | Powder pressing tubular product mold |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968731A (en) * | 2019-04-10 | 2019-07-05 | 河南黄河旋风股份有限公司 | Powder pressing at tubular products mold and tubular products manufacturing method |
| CN113523090A (en) * | 2021-06-22 | 2021-10-22 | 浙江创特新材科技有限公司 | Framework coil's drawing of patterns punching device |
-
2019
- 2019-04-10 CN CN201920472429.9U patent/CN210116195U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968731A (en) * | 2019-04-10 | 2019-07-05 | 河南黄河旋风股份有限公司 | Powder pressing at tubular products mold and tubular products manufacturing method |
| CN113523090A (en) * | 2021-06-22 | 2021-10-22 | 浙江创特新材科技有限公司 | Framework coil's drawing of patterns punching device |
| CN113523090B (en) * | 2021-06-22 | 2023-02-24 | 浙江创特新材科技有限公司 | Stripping and punching device for framework coil |
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