CN215544873U - Casting device for lost foam casting - Google Patents
Casting device for lost foam casting Download PDFInfo
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- CN215544873U CN215544873U CN202120684831.0U CN202120684831U CN215544873U CN 215544873 U CN215544873 U CN 215544873U CN 202120684831 U CN202120684831 U CN 202120684831U CN 215544873 U CN215544873 U CN 215544873U
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Abstract
The utility model discloses a casting device for lost foam casting, which comprises a casting workbench, wherein a casting hopper is arranged on the workbench, the outlet of the casting hopper is connected with an electric gate valve, the outlet of the electric gate valve is connected with a telescopic discharge pipe, a roller conveyor is arranged below the discharge pipe, a frame of the roller conveyor is provided with a non-contact position sensor, the center line of the non-contact position sensor and the center line of the discharge pipe are positioned on the same vertical surface, the non-contact position sensor is used for detecting the position of a sand box pouring channel aligned with the discharge pipe, the non-contact position sensor is electrically connected with a motor of the roller conveyor, and the motor of the roller conveyor is electrically connected with the motor of the electric gate valve. When the utility model is used, workers do not need to take workpieces near the pouring hopper, thereby avoiding high-temperature roasting, protecting the safety of the workers and improving the working efficiency.
Description
Technical Field
The utility model relates to the technical field of casting equipment, in particular to a casting device for lost foam casting.
Background
The lost foam casting is a new process with nearly no allowance and accurate forming, which provides sufficient freedom for the structural design of a casting, and the lost foam casting needs to be firstly made into a foaming model, then a special high-temperature resistant coating is coated on the foaming model, the coating is dried and then placed in a special sand box, dry sand is filled according to the process requirement, the three-dimensional vibration is utilized for compacting, then molten metal is cast, then the model is gasified at high temperature and disappears, the molten metal replaces the model, and the casting which is the same as the foaming model is copied. When the existing lost foam casting device is used, after one workpiece is cast, the workpiece needs to be taken away, the next workpiece is put in, casting is continued, the casting efficiency is low, and workers can be roasted at high temperature when taking and placing the workpiece, so that the risk of work is increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a casting device for lost foam casting.
The technical scheme adopted by the utility model is as follows:
a casting device for lost foam casting comprises a casting workbench, a hopper is arranged on the workbench, an outlet of the hopper is connected with an electric gate valve, an outlet of the electric gate valve is connected with a telescopic discharge pipe, a roller conveyor is arranged below the discharge pipe and is horizontally arranged, the two ends of the roller conveyor extend out of the casting workbench, the roller conveyor comprises a frame and a roller rotatably arranged on the frame, and a motor and a chain transmission device for driving the roller to rotate, a non-contact position sensor is arranged on the frame, the center line of the non-contact position sensor and the center line of the discharge pipe are located on the same vertical plane, the non-contact position sensor is used for detecting the position of the sand box pouring channel when the discharge pipe is aligned, the non-contact position sensor is electrically connected with a motor of the roller conveyor, and the motor of the roller conveyor is electrically connected with a motor of the electric gate valve.
Furthermore, the telescopic discharging pipe comprises a fixed pipe and a movable pipe sleeved outside the fixed pipe in a sliding mode, a stopping table is arranged at the lower end of the fixed pipe, a sliding table is arranged at the upper end of the movable pipe, the sliding table is connected with the outer wall of the fixed pipe in a sliding mode, and the stopping table is matched with the sliding table to prevent the movable pipe from being separated from the fixed pipe.
Furthermore, the sliding table is provided with a conical feed inlet, the diameter of the large end of the conical feed inlet is equal to the inner diameter of the fixed pipe, and the diameter of the small end of the conical feed inlet is equal to the inner diameter of the movable pipe.
Furthermore, a limiting device is arranged on a rack of the roller conveyor, the limiting device is arranged on one side of the rack, a plurality of limiting devices are arranged at intervals, and the distance between every two adjacent limiting devices is smaller than the length of one sand box.
Furthermore, the limiting device comprises a bracket fixed on the roller conveyor frame and a roller wheel rotatably arranged on the bracket, and the roller wheel is in rolling contact with the sand box.
Further, the electric gate valve is connected with the pouring hopper and the discharging pipe through flanges.
Furthermore, the inlet and the outlet of the casting bucket are eccentrically arranged, and the outlet of the casting bucket is aligned with the inlet of the pouring channel of the sand box.
The utility model has the beneficial effects that: when the device is used, the sand boxes can be placed on the roller conveyor one by one, the roller conveyor is started to drive the sand boxes to move towards the casting workbench, when the sand boxes move to the position below the pouring hopper, the non-contact position sensor senses metal pieces on a pouring gate, the roller conveyor stops running, a discharging pipe of the pouring hopper is opposite to the pouring gate of the sand boxes, the electric flashboard valve is opened, and molten iron is filled into the sand boxes. After one sand box is filled, the roller conveyor is manually started, the sand box filled with molten iron is conveyed forwards, and the second sand box to be filled moves to the position below the pouring hopper to be automatically filled. Through the automatic continuous filling device, the automatic continuous filling of the sand box can be realized, the problem that workers can be roasted at high temperature when taking and placing workpieces is solved, and the casting efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of a casting apparatus for lost foam casting according to the present invention.
Fig. 2 is a top view of fig. 1.
FIG. 3 is a schematic view showing the structure of a telescopic nozzle of the casting apparatus for lost foam casting according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail and fully with reference to the accompanying drawings and a preferred embodiment.
Example 1
Referring to fig. 1 to 3, the embodiment provides a casting device for lost foam casting, which comprises a casting workbench 10, a casting bucket 20 is arranged on the workbench, an outlet of the casting bucket is connected with an electric gate valve 30 through a flange, an outlet of the electric gate valve is connected with a telescopic discharge pipe 40 through a flange, a roller conveyor 50 is arranged below the discharge pipe, the roller conveyor is horizontally arranged, two ends of the roller conveyor extend out of the casting workbench, the roller conveyor 50 comprises a frame 51, a roller 52 rotatably arranged on the frame, a motor 56 and a chain transmission device for driving the roller to rotate, a non-contact position sensor 70 is arranged on the frame 51, a center line of the non-contact position sensor and a center line of the discharge pipe are positioned on the same vertical surface, the non-contact position sensor 70 is used for detecting the position of a casting box runner when the casting box runner is aligned with the discharge pipe, and the non-contact position sensor 70 is electrically connected with the motor 56 of the roller conveyor, the motor 56 of the roller conveyor is electrically connected with the motor 31 of the electric gate valve. The structure and connection of the components will be described in detail below.
The electric gate valve 30 is in the prior art, is simple in structure, high-temperature resistant, not easy to break down and clean in discharging, and can not accumulate to cause the molten iron to be condensed in the valve core after being cooled.
The non-contact position sensor 70 is a conventional sensor, and preferably uses an inductive proximity switch, a steel sleeve is sleeved on the outer side of the sand box gate opening, when the inductive proximity switch approaches the steel sleeve, a sensing signal is sent out, the sensing signal is transmitted to the motor 56 of the roller conveyor 50 through a lead, and the motor 56 stops running. The signal of stopping the operation of the motor 56 is transmitted to the motor 31 of the electric gate valve through a wire, and the motor 31 starts to open the valve. After the casting is finished, a motor button is manually operated, and a valve is closed or a conveyor is started.
Preferably, the casting table 10 is a reinforced concrete structure, and includes a support platform 11 and four corner support legs 12 disposed at the lower end of the support platform 11. The casting workbench designed by the reinforced concrete structure is large in weighing, high-temperature corrosion resistant and high in safety. The center of the supporting platform 11 is provided with a conical through hole matched with the shape of the casting ladle, and the casting ladle 20 is clamped in the conical through hole.
The pouring hopper 20 is in a conical shape with the upper part and the lower part being round, the outlet of the pouring hopper deviates to one side, so that the outlet of the pouring hopper can be aligned with the pouring gate of the sand box, and the pouring gate of the sand box is generally arranged on one corner of the sand box, so that the operation is convenient. The standardized design can be adopted, so that the pouring opening of the sand box is located at a fixed position of the sand box, and the distance between the top end of the pouring opening and the bottom end of the discharge opening is consistent, thereby facilitating the automatic casting.
The telescopic discharging pipe 40 comprises a fixed pipe 41 and a movable pipe 42 which is sleeved outside the fixed pipe in a sliding manner, wherein the outer side of the lower end of the fixed pipe is provided with a stopping platform 411, and the stopping platform 411 is formed by radially inwards protruding the outer side wall of the end part of the fixed pipe; the upper end of the movable pipe is provided with a sliding table 42, and the sliding table 42 is formed by radially outwards protruding the inner side wall of the end part of the movable pipe; the inner side surface of the sliding table 42 is a cylindrical surface matched with the outer diameter of the fixed pipe 41, and the sliding table 42 is connected with the outer wall of the fixed pipe in a sliding mode. When the sand box required to be cast is too high or too low, the movable pipe can be pulled in and pulled out manually by people, and the length of the discharge pipe is changed. The position where the slide table 42 hits the stopper table 411 is the limit position of the movable tube, and the movable tube is prevented from being separated from the fixed tube by excessive force. The telescopic pipe and the casting bucket are made of the same material.
In order to prevent the sand boxes from deviating in the operation process, a plurality of limiting devices 60 are arranged on one side of the rack 41 of the roller conveyor at intervals, and the distance between every two adjacent limiting devices is smaller than the length of one sand box. The limiting device 60 comprises a support fixed on the roller conveyor frame and a roller wheel rotatably arranged on the support, and the roller wheel is in rolling contact with the sand box to reduce friction force.
The working mode of the utility model is as follows: when the pouring device is used, a plurality of sand boxes 1 to be poured and a starting motor 51 are sequentially and orderly placed on the roller conveyor, when the sand boxes 1 move to the lower side of a pouring hopper 20, a non-contact position sensor 70 senses a metal piece on a pouring gate 2, the roller conveyor 50 stops running, a pouring hopper discharging pipe 40 is just opposite to a sand box pouring gate port at the moment, an electric gate valve 30 is opened, and molten iron is filled into the pouring gate of the sand boxes. After one sand box is filled, the roller conveyor 50 is manually started, the sand box filled with molten iron is conveyed forwards, the second sand box to be filled is moved to the position below the pouring hopper to be automatically filled, so that continuous casting is realized, the cast workpiece is moved to the end of the roller conveyor, a worker does not need to take the workpiece nearby the pouring hopper, high-temperature roasting is avoided, the safety of workers is protected, and the working efficiency is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and the improvements and modifications are also within the protection scope of the present invention.
Claims (6)
1. A casting device for lost foam casting comprises a casting workbench, a casting hopper is arranged on the workbench, it is characterized in that the outlet of the pouring bucket is connected with an electric gate valve, the outlet of the electric gate valve is connected with a telescopic discharge pipe, a roller conveyor is arranged below the discharge pipe and is horizontally arranged, the two ends of the roller conveyor extend out of the casting workbench, the roller conveyor comprises a frame and a roller rotatably arranged on the frame, and a motor and a chain transmission device for driving the roller to rotate, a non-contact position sensor is arranged on the frame, the center line of the non-contact position sensor and the center line of the discharge pipe are located on the same vertical plane, the non-contact position sensor is used for detecting the position of the sand box pouring channel when the discharge pipe is aligned, the non-contact position sensor is electrically connected with a motor of the roller conveyor, and the motor of the roller conveyor is electrically connected with a motor of the electric gate valve.
2. The casting apparatus for lost foam casting according to claim 1, wherein the telescopic discharging pipe comprises a fixed pipe and a movable pipe slidably fitted around the fixed pipe, a stopper is provided at a lower end of the fixed pipe, a sliding table is provided at an upper end of the movable pipe, the sliding table is slidably connected to an outer wall of the fixed pipe, and the stopper cooperates with the sliding table to prevent the movable pipe from being separated from the fixed pipe.
3. The casting device for the lost foam casting according to claim 1 or 2, wherein a plurality of limiting devices are arranged on the frame of the roller conveyor at intervals, and the distance between two adjacent limiting devices is less than the length of one sand box.
4. The casting apparatus for lost foam casting according to claim 3, wherein the stopper means comprises a bracket fixed to the frame of the roller conveyor, and a roller rotatably provided on the bracket, the roller being in rolling contact with the flask.
5. The casting apparatus for lost foam casting according to claim 1 or 2, wherein the electric gate valve is connected to the ladle and the discharge pipe via a flange.
6. The casting apparatus for lost foam casting according to claim 1 or 2, wherein the inlet and the outlet of the ladle are eccentrically disposed, and the outlet of the ladle is aligned with the inlet of the runner of the flask.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120684831.0U CN215544873U (en) | 2021-04-02 | 2021-04-02 | Casting device for lost foam casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120684831.0U CN215544873U (en) | 2021-04-02 | 2021-04-02 | Casting device for lost foam casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215544873U true CN215544873U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120684831.0U Active CN215544873U (en) | 2021-04-02 | 2021-04-02 | Casting device for lost foam casting |
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| Country | Link |
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| CN (1) | CN215544873U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682738A (en) * | 2022-03-30 | 2022-07-01 | 江西亿丰精密铸造有限公司 | Cast iron lost foam pouring equipment |
| CN115846610A (en) * | 2023-01-04 | 2023-03-28 | 杭州富生电器有限公司 | Full-automatic six-station rotor core centrifugal casting production line |
-
2021
- 2021-04-02 CN CN202120684831.0U patent/CN215544873U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682738A (en) * | 2022-03-30 | 2022-07-01 | 江西亿丰精密铸造有限公司 | Cast iron lost foam pouring equipment |
| CN115846610A (en) * | 2023-01-04 | 2023-03-28 | 杭州富生电器有限公司 | Full-automatic six-station rotor core centrifugal casting production line |
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