CN209830200U - Sand core mold containing lever type core pulling device - Google Patents
Sand core mold containing lever type core pulling device Download PDFInfo
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- CN209830200U CN209830200U CN201920137594.9U CN201920137594U CN209830200U CN 209830200 U CN209830200 U CN 209830200U CN 201920137594 U CN201920137594 U CN 201920137594U CN 209830200 U CN209830200 U CN 209830200U
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- support
- cylinder
- connecting rod
- pulling block
- sand core
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Abstract
The utility model discloses a psammitolite mould that contains lever device of loosing core, loose core the device including cover half, movable mould, lever. The method is characterized in that: the lever type core pulling device comprises a pulling block, a connecting rod, a support and a cylinder, wherein the pulling block and the cylinder are not in a traditional direct connection mode, the cylinder is positioned outside a fixed die, the support is arranged between the pulling block and the cylinder, the pulling block, the support and the cylinder are connected together by the connecting rod, the cylinder drives the pulling block to move forward and backward through a labor-saving lever structure, and the distance between the cylinder and a die is increased because the cylinder is positioned outside the fixed die, so that the damage of the cylinder caused by long-time heating due to too close distance between the cylinder and the die is avoided, and the service; the distance between the cylinder and the support is larger than the distance between the pumping block and the support to form a labor-saving lever structure, so that the force of the cylinder is strengthened, the cylinder can be selected to have smaller size and specification, and the purchasing cost of the cylinder is saved.
Description
Technical Field
The utility model relates to a casting technical field specifically is a psammitolite mould that contains lever device of loosing core.
Background
In the shell pressing casting process, because the shell is internally provided with the tubular cavity, a sand core needs to be placed between the upper die and the lower die to form the cavity. Many times, the sand core is complex in modeling and more in curved surface, so that a core-pulling device is often needed to realize smooth mold splitting in the sand core manufacturing process. The traditional core pulling device is usually to take out the piece through cylinder lug connection, because the cylinder is nearer from the mould, in process of production, the cylinder receives high temperature for a long time and toasts and lead to life weak point, and the cylinder size is great, and the cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art's defect, and provide a psammitolite mould that contains lever device of loosing core, improve cylinder life, reduce cost.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a psammitolite mould that contains lever device of loosing core, includes cover half 1, movable mould 2, the device of loosing core, its characterized in that: the core pulling device is a lever type core pulling device and comprises a pulling block 8, a connecting rod 4, a support and a cylinder 3, wherein a platform 10 extends outwards from the fixed die 1, the cylinder is fixedly installed on the platform 10, the support comprises a first support 7, a second support 6 and a third support 5, the first support 7 is connected with a piston of the cylinder 3, the second support 6 is fixedly installed on the fixed die 1, the third support 5 is connected with the pulling block 8, and the connecting rod 4 is sequentially connected with the first support 7, the second support 6 and the third support 5.
Further, the distance between the first bracket 7 and the second bracket 6 is larger than the distance between the second bracket 6 and the third bracket 5.
Further, the cylinder diameter of the cylinder 3 is 50mm, and the stroke is 15 mm.
Furthermore, the second bracket 6 and the third bracket 5 are cylindrical, the diameter is 40mm, the groove width at the middle part is 13mm, the depth is 60mm, and the material is 45# steel or 40 Cr.
Furthermore, the thickness of the connecting rod 4 is 10-12mm, the length is 210-230mm, and the material is 45# steel or 40 Cr.
Furthermore, the inner end surface of the pulling block 8 is attached to the cavity wall of the cavity of the fixed die 1 and is made of HT250 or 40 Cr.
Further, the connecting rod 4 is connected with the bracket by a pin 9, and the specification of the pin is phi 8mm multiplied by 40 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model relates to a psammitolite mould that contains lever device of loosing core takes out and is different from traditional lug connection mode between piece and the cylinder, but fixes the cylinder in the place of keeping away from the mould body, through a connecting rod with take out the piece associative knot. Such structural design can avoid cylinder and mould to be too close and receive the cylinder damage that high temperature toasted and lead to for a long time, improves cylinder life. A structure of a labor-saving lever is formed between the connecting rod and the support, so that the air cylinder can be selected to be small in size and specification, the air cylinder is convenient to install, and the purchasing cost of the air cylinder is saved.
Drawings
Fig. 1 is a front view of the structure of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is the structural schematic diagram of the lever core pulling device of the utility model.
In the figure: 1-fixing a mould; 2-moving a mould; 3-a cylinder; 4-a connecting rod; 5 a third bracket; 6-a second bracket; 7-a first scaffold; 8-block extraction; 9-pins; 10-platform.
Detailed Description
In order to deepen the understanding of the present invention, we will make further details of the present invention with reference to the drawings, and this embodiment is only used to explain the present invention, and does not constitute a limitation to the protection scope of the present invention.
As shown in fig. 1-3, a sand core mold comprising a lever type core pulling device comprises a fixed mold 1, a movable mold 2 and the lever type core pulling device, wherein the lever type core pulling device is composed of a pulling block 8, a connecting rod 4, a first support 7, a second support 6, a third support 5 and a cylinder 3, the first support 7 is connected with a piston of the cylinder 3, the second support 6 is fixedly installed on the fixed mold 1, the third support 5 is connected with the pulling block 8, and the connecting rod 4 is sequentially connected with the first support 7, the second support 6 and the third support 5. The connecting rod 4 is connected with the first support 7, the second support 6 and the third support 5 through the pins 9 to form a whole, and the cylinder 3 is fixed on a platform 10 extending outwards of the fixed die 1 in a screw fastening mode. And the fixed die 1 and the movable die 2 are arranged on the shell core machine equipment, and the external compressed air is connected with the air cylinder 3.
After the mold is installed, the mold is closed, a heating switch of the equipment is opened, the fixed mold 1 and the movable mold 2 are heated, and corresponding sand core manufacturing parameters are set. When the temperature reaches the process requirement, the mold is opened, and a layer of coating is uniformly sprayed on the cavity surface of the mold. The equipment program is selected automatically, a start button is pressed, the die is assembled, the cylinder 3 moves forwards in a stroke, acts on the connecting rod 4, pushes the drawing block 8 to move forwards until the surface of the joint cavity, after the sand core is manufactured, the die is opened automatically, the cylinder 3 moves backwards, acts on the connecting rod 4, pulls out the drawing block 8, then takes out the sand core, and presses the start button to repeat the production operation.
Preferably, the distance between the first bracket 7 and the second bracket 6 is larger than the distance between the second bracket 6 and the third bracket 5, so as to form a structure of a labor-saving lever.
Preferably, the second bracket 6 and the third bracket 5 are cylindrical, have the diameter of 40mm, have the middle groove width of 13mm and the depth of 60mm, and are made of 45# steel or 40 Cr.
Preferably, the thickness of the connecting rod 4 is 10-12mm, the length is 210-230mm, and the material is 45# steel or 40 Cr.
Preferably, the material of the tap block 8 is HT250 or 40 Cr.
Preferably, the cylinder 3 has a diameter of 50mm and a stroke of 15 mm.
Preferably, the pin 9 gauge is Φ 8mm × 40 mm.
Claims (7)
1. The utility model provides a psammitolite mould that contains lever device of loosing core, includes cover half (1), movable mould (2), the device of loosing core, its characterized in that: the core pulling device is a lever type core pulling device and comprises a pulling block (8), a connecting rod (4), a support and a cylinder (3), wherein a platform (10) extends outwards from a fixed die (1), the cylinder (3) is fixedly installed on the platform (10), the support comprises a first support (7), a second support (6) and a third support (5), the first support (7) is connected with a piston of the cylinder (3), the second support (6) is fixedly installed on the fixed die (1), the third support (5) is connected with the pulling block (8), and the connecting rod (4) is sequentially connected with the first support (7), the second support (6) and the third support (5).
2. The sand core mold of claim 1, wherein: the distance between the first support (7) and the second support (6) is larger than the distance between the second support (6) and the third support (5).
3. The sand core mold of claim 2, wherein: the cylinder diameter of the cylinder (3) is 50mm, and the stroke is 15 mm.
4. The sand core mold as claimed in any one of claims 1 to 3, wherein: the second support (6) and the third support (5) are cylindrical, the diameter of the second support is 40mm, the groove width of the middle part of the second support is 13mm, the depth of the middle part of the third support is 60mm, and the second support and the third support are made of 45# steel or 40 Cr.
5. The sand core mold of claim 4, wherein: the thickness of connecting rod (4) is 10 ~ 12mm, and length is 210 ~ 230mm, and its material is 45# steel or 40 Cr.
6. The sand core mold of claim 5, wherein: the inner end face of the pulling block (8) is attached to the cavity wall of the cavity of the fixed die (1) and is made of HT250 or 40 Cr.
7. The sand core mold of claim 6, wherein: the connecting rod (4) is connected with the bracket by a pin (9), and the specification of the pin is phi 8mm multiplied by 40 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920137594.9U CN209830200U (en) | 2019-01-25 | 2019-01-25 | Sand core mold containing lever type core pulling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920137594.9U CN209830200U (en) | 2019-01-25 | 2019-01-25 | Sand core mold containing lever type core pulling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209830200U true CN209830200U (en) | 2019-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920137594.9U Active CN209830200U (en) | 2019-01-25 | 2019-01-25 | Sand core mold containing lever type core pulling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209830200U (en) |
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2019
- 2019-01-25 CN CN201920137594.9U patent/CN209830200U/en active Active
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| GR01 | Patent grant | ||
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Address after: 214000 Rengang village, Xuelang street, Binhu District, Wuxi City, Jiangsu Province Patentee after: Wuxi Sinan Technology Co.,Ltd. Address before: 214000 Rengang village, Xuelang street, Binhu District, Wuxi City, Jiangsu Province Patentee before: WUXI XINAN ALUMINUM TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |