CN211990921U - Core bar forming mechanism of powder forming machine controlled by two groups of oil cylinders - Google Patents
Core bar forming mechanism of powder forming machine controlled by two groups of oil cylinders Download PDFInfo
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- CN211990921U CN211990921U CN201922434937.0U CN201922434937U CN211990921U CN 211990921 U CN211990921 U CN 211990921U CN 201922434937 U CN201922434937 U CN 201922434937U CN 211990921 U CN211990921 U CN 211990921U
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- core rod
- oil cylinder
- pistons
- lower connecting
- connecting plate
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Abstract
The utility model relates to a powder forming machine core bar forming mechanism by two sets of hydro-cylinders control. The oil cylinder device comprises a core rod (3), wherein a lower connecting plate (4) is arranged on the core rod (3), a first oil cylinder (5) and a second oil cylinder (6) are arranged on the lower connecting plate (4), and the first oil cylinder (5) and the second oil cylinder (6) are symmetrically arranged on the lower connecting plate (4); the piston type cylinder device is characterized in that two pistons (1) connected with the core rod (3) are arranged, the two pistons (1) are driven to move up and down by a first oil cylinder (5) and a second oil cylinder (6) corresponding to the two pistons (1), and the pistons (1) drive the core rod (3) to move up and down. The core bar forming mechanism of the powder forming machine is reasonable in structure and capable of improving product forming quality and is controlled by the two groups of oil cylinders.
Description
Technical Field
The utility model relates to a powder forming machine core bar forming mechanism by two sets of hydro-cylinders control belongs to powder metallurgy technical field.
Background
When a powder molded product needs to be molded by using a core rod (most directly, for example, a product with a through hole in the middle), when the product starts to be demolded from a mold cavity in a pressing cycle, the unstable core rod punch is easy to be separated from the product sometimes, and the hole in the product is easy to crack, so that the quality of the product is affected.
SUMMERY OF THE UTILITY MODEL
To the above defect, the utility model aims to provide a powder forming machine core bar forming mechanism by two sets of hydro-cylinders control that is rational in infrastructure, improves goods shaping quality.
Therefore, the utility model adopts the technical scheme that: a core bar forming mechanism of a powder forming machine controlled by two groups of oil cylinders comprises a core bar, wherein a lower connecting plate is arranged on the core bar, a first oil cylinder and a second oil cylinder are arranged on the lower connecting plate, and the first oil cylinder and the second oil cylinder are symmetrically arranged on the lower connecting plate;
the piston type cylinder device is characterized in that two pistons 1 connected with the core rod 3 are arranged, the two pistons 1 are driven by a first oil cylinder 5 and a second oil cylinder 6 corresponding to the two pistons 1 respectively to move up and down, and the pistons drive the core rod to move up and down.
Further, the piston is connected with a core rod plate through a clamping ring, and the core rod plate is arranged on the core rod.
Further, the core rod is arranged in the middle of the lower connecting plate, an installation cavity for installing the piston is formed in the side portion of the lower connecting plate, and the piston moves up and down along the installation cavity.
Furthermore, the core rod plate is arranged on the outer surface of the core rod to form fixed connection, and the axis of the core rod plate is overlapped with the axis of the core rod.
The utility model has the advantages that: 1) two groups of oil cylinders are arranged on the die carrier, and two groups of guide devices are added, so that compared with the method that a single air cylinder is arranged at the lower part of a machine, the stability is more stable and reliable, and the stability of the obtained product is better.
2) The two groups of oil cylinders have large demoulding force, and the core bar is stably and reliably filled.
3) The core rod forming cylinder is placed on the die carrier on a large machine, so that the core rod forming cylinder is convenient to install and maintain, and the maintenance cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of fig. 1.
In the figure, 1 is a piston, 2 is a core rod plate, 3 is a core rod, 4 is a lower connecting plate, 5 is a first oil cylinder, 6 is a second oil cylinder, and 7 is a clamping ring.
Detailed Description
A core bar forming mechanism of a powder forming machine controlled by two groups of oil cylinders comprises a core bar 3, wherein a lower connecting plate 4 is arranged on the core bar 3, a first oil cylinder 5 and a second oil cylinder 6 are arranged on the lower connecting plate 4, and the first oil cylinder 5 and the second oil cylinder 6 are symmetrically arranged on the lower connecting plate 4;
the piston type cylinder device is characterized in that two pistons 1 connected with the core rod 3 are arranged, the two pistons 1 are driven by a first oil cylinder 5 and a second oil cylinder 6 corresponding to the two pistons 1 respectively to move up and down, and the pistons 1 drive the core rod 3 to move up and down.
Furthermore, the piston 1 is connected to a core rod plate 2 via a collar 7, the core rod plate 2 being arranged on the core rod 3.
Further, the core bar 3 is arranged in the middle of the lower connecting plate 4, a mounting cavity for mounting the piston 1 is arranged on the side of the lower connecting plate 4, and the piston 1 moves up and down along the mounting cavity.
Further, the core rod plate 2 is arranged on the outer surface of the core rod 3 to form fixed connection, and the axis of the core rod plate 2 and the axis of the core rod 3 are overlapped.
The utility model is further explained with the following drawings to better understand the utility model:
1) the working principle is as follows: powder molded articles are required to be molded using a core pin (most directly, such as with a through hole in the middle of the article). When a product starts to be demoulded from a die cavity in one pressing period, oil ways of the hydraulic station are accurately controlled by the electric system to supply oil to the two groups of oil cylinders, so that the core rod punch is ensured to be always in the product, and the product is prevented from cracking from the middle hole during demoulding, and an ideal pressed product is obtained.
2) The working process is as follows: when the product needs to be molded by using the core rod, a core rod punch is arranged on the core rod 3. When the machine starts to demould in the pressing period, the main control circuit system controls an oil circuit system of an external hydraulic station of the machine to supply oil to the bottoms of the two groups of oil cylinders 5 and 6 on the lower connecting plate 4, so that pistons in the oil cylinders move upwards (in the figure, the pistons 1 are in the shape of pistons arranged in the oil cylinders), and the core rods 3 are driven to move upwards. (the piston is connected with the core bar plate 2 through the clamping ring 8, the core bar plate 2 is connected with the core bar 3), the core bar punch is ensured to be always in the product (the limiting device is arranged in the die carrier and used for controlling the upward stroke amount of the piston) until the pressed product is completely demoulded from the die cavity, then the upper parts of the pistons in the two groups of oil cylinders are supplied with oil through the main control system to enable the pistons to move downwards, the core bar 3 is driven to move downwards, the core bar punch is enabled to be completely separated from the pressed product, and thus the core bar forming of.
Claims (4)
1. A core bar forming mechanism of a powder forming machine controlled by two groups of oil cylinders is characterized by comprising a core bar (3), wherein a lower connecting plate (4) is arranged on the core bar (3), a first oil cylinder (5) and a second oil cylinder (6) are arranged on the lower connecting plate (4), and the first oil cylinder (5) and the second oil cylinder (6) are symmetrically arranged on the lower connecting plate (4);
the piston type oil cylinder device is characterized in that two pistons (1) connected with the core rod (3) are arranged, the two pistons (1) are driven by a first oil cylinder (5) and a second oil cylinder (6) corresponding to the two pistons (1) respectively to move up and down, and the pistons (1) drive the core rod (3) to move up and down.
2. The core rod forming mechanism of a powder forming machine controlled by two sets of oil cylinders as claimed in claim 1, characterized in that the piston (1) is connected with the core rod plate (2) through a collar (7), and the core rod plate (2) is arranged on the core rod (3).
3. The core rod forming mechanism of the powder forming machine controlled by two sets of oil cylinders as claimed in claim 1, characterized in that the core rod (3) is arranged in the middle of the lower connecting plate (4), the side of the lower connecting plate (4) is provided with a mounting cavity for mounting the piston (1), and the piston (1) moves up and down along the mounting cavity.
4. The core rod forming mechanism of the powder forming machine controlled by two sets of oil cylinders as claimed in claim 2, characterized in that the core rod plate (2) is arranged on the outer surface of the core rod (3) to form a fixed connection, and the axis of the core rod plate (2) and the axis of the core rod (3) are arranged in a superposition manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922434937.0U CN211990921U (en) | 2019-12-30 | 2019-12-30 | Core bar forming mechanism of powder forming machine controlled by two groups of oil cylinders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922434937.0U CN211990921U (en) | 2019-12-30 | 2019-12-30 | Core bar forming mechanism of powder forming machine controlled by two groups of oil cylinders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211990921U true CN211990921U (en) | 2020-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922434937.0U Active CN211990921U (en) | 2019-12-30 | 2019-12-30 | Core bar forming mechanism of powder forming machine controlled by two groups of oil cylinders |
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| CN (1) | CN211990921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113118440A (en) * | 2019-12-30 | 2021-07-16 | 扬州市海力精密机械制造有限公司 | Hydraulic drive core bar forming mechanism of powder forming machine |
-
2019
- 2019-12-30 CN CN201922434937.0U patent/CN211990921U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113118440A (en) * | 2019-12-30 | 2021-07-16 | 扬州市海力精密机械制造有限公司 | Hydraulic drive core bar forming mechanism of powder forming machine |
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