CN221209801U - Automatic slurry water supplementing device in investment casting shell making process - Google Patents
Automatic slurry water supplementing device in investment casting shell making process Download PDFInfo
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- CN221209801U CN221209801U CN202322956413.4U CN202322956413U CN221209801U CN 221209801 U CN221209801 U CN 221209801U CN 202322956413 U CN202322956413 U CN 202322956413U CN 221209801 U CN221209801 U CN 221209801U
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- investment casting
- casting shell
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- slurry
- making process
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 239000002002 slurry Substances 0.000 title claims abstract description 59
- 238000005495 investment casting Methods 0.000 title claims abstract description 41
- 230000001502 supplementing effect Effects 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000003860 storage Methods 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 4
- 101100190618 Arabidopsis thaliana PLC3 gene Proteins 0.000 description 6
- 238000007598 dipping method Methods 0.000 description 6
- 239000013589 supplement Substances 0.000 description 5
- 239000012153 distilled water Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 230000003020 moisturizing effect Effects 0.000 description 3
- 230000002354 daily effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006255 coating slurry Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Paper (AREA)
Abstract
The utility model relates to an automatic slurry water replenishing device in an investment casting shell making process, which is connected in an investment casting shell making assembly line and comprises the following components: the electromagnetic valve is connected with the signal generating device of the investment casting shell manufacturing assembly line, the water storage tank is arranged outside the investment casting shell manufacturing assembly line, is communicated with the slurry barrel pipeline of the investment casting shell manufacturing assembly line, and the PLC system is connected with the electromagnetic valve and is provided with a water supplementing frequency parameter. The pulp barrel is in a constant rotation state. The utility model can reduce work, reduce quality risk, improve production efficiency and reduce dependence on experience and skill of staff.
Description
Technical Field
The utility model relates to the technical field of auxiliary structures of casting molds, in particular to an automatic slurry water supplementing device in an investment casting shell making process.
Background
Investment casting, also known as lost wax casting, is an ancient metal casting technique that includes the steps of pressing wax, repairing wax, grouping trees, dipping slurry, dewaxing, smelting casting, post-treatment, and the like. Investment casting is usually carried out by preparing a finished product pattern from fusible materials such as wax materials, assembling trees with wax materials and pouring channels, coating slurry and sand materials on tree strings, drying and hardening into an integrated shell, heating to flow out wax to obtain an empty shell, baking the mould shell at high temperature, pouring liquid metal into the shell, cooling, and removing surface refractory materials to obtain the precision casting.
Investment casting has the advantages of high dimensional accuracy of castings, complex castable shape, difficult processing by other methods and the like, and is widely applied to the fields of aviation parts and medical appliances at present.
In the investment casting production process, the shell making process has great influence on the overall rejection rate, particularly, the control of slurry parameters in the shell making process, the viscosity is high or low, the sizing effect and the product quality are directly influenced, the slurry is not easy to control due to the too high viscosity, the slurry in a part of corner areas is not easy to infiltrate, the slurry cannot adhere to the surface of a wax mould due to the too low viscosity, and the strength of the mould shell is insufficient. The viscosity adjustment is that the staff measures the viscosity once every 2-4 hours, if the viscosity is not adjusted within a qualified range, if the viscosity exceeds the upper limit, the water quantity required to be added is estimated according to the actual viscosity of the slurry and the quantity of the slurry, then pure water is measured by using a measuring cup and then directly poured into a slurry barrel, the slurry can be used after stirring for 0.5 hour, if the viscosity of the slurry after adjustment is lower than a specification line, the slurry can not be used, if the viscosity of the slurry is higher than the specification line, water is required to be added again for adjustment, the viscosity of the slurry is ensured to be within a specified range, so that the viscosity adjustment needs 1-2 times each time, the normal working time is seriously influenced, and the waste of a large amount of equipment productivity is caused.
Disclosure of utility model
The inventor aims at the defects in the prior art, and provides the automatic slurry supplementing device for the investment casting shell making process, which has a reasonable structure, and can timely and accurately supplement water according to actual working conditions, so that the workload of staff and quality risks caused by inaccurate control quantity are reduced.
The technical scheme adopted by the utility model is as follows:
An automatic slurry replenishing device for investment casting shell making process, which is connected in an investment casting shell making assembly line, comprising:
A solenoid valve connected with a signal generating device of the investment casting shell-making assembly line,
The water storage tank is externally arranged outside the investment casting shell manufacturing assembly line and is communicated with a slurry barrel pipeline of the investment casting shell manufacturing assembly line,
The PLC system is connected with the electromagnetic valve and is provided with a water supplementing frequency parameter.
The pulp barrel is in a constant rotation state.
The height of the water storage tank is higher than that of the pulp barrel.
The water supplementing port led out from the water storage tank extends to the port part of the slurry barrel, and a water supplementing height is reserved between the water supplementing port and the liquid level of the slurry.
The inner cavity of the pulp barrel is obliquely arranged.
The inclination angle of the bottom wall of the pulp barrel containing cavity is as follows: the included angle between the water-cooling device and the horizontal plane is 8-12 degrees.
The temperature range in the pulp barrel before and after water supplementing is required to be controlled at 21-23 ℃.
The water replenishing flow is uniform-speed water flow.
The single water supplementing requirement meets the single daily requirement.
The beneficial effects of the utility model are as follows:
The utility model can reduce the workload: automatic water supplementing is carried out through equipment, so that the number of manual water supplementing times is reduced, and the workload of staff is reduced;
Reducing the quality risk: when the manual water replenishing is performed, staff judges the water replenishing amount according to personal experience, the viscosity of the slurry after adjustment is easily caused to be out of range, and the influence of human factors on the slurry is reduced and the quality risk is reduced through automatic water replenishing;
The production efficiency is improved: more distilled water is needed to be added for a single time of manual water supplementing, the slurry can be used after being added and stirred for 0.5h, the problem that the shuttering is scrapped due to uneven stirring of the slurry is avoided, and after automatic water supplementing is changed, the single water supplementing amount is extremely small, and no production stopping is needed for stirring;
The dependence on the experience and skill of staff is reduced: the manual water replenishing is needed to judge the replenishing water amount by means of personal experience according to the slurry viscosity and the slurry amount, the skill of staff has a large influence on the slurry, and the staff can control the slurry viscosity to be in a qualified range in a long time by only turning on a water replenishing switch through an automatic water replenishing device.
Drawings
Fig. 1 is a schematic diagram of the overall arrangement of the present utility model.
Fig. 2 is a schematic diagram of the pulp barrel arrangement of the present utility model.
Wherein: 1. an electromagnetic valve; 2. a water storage tank; 3. a PLC system; 4. a pulp barrel; 5. a hose;
401. a cavity.
Detailed Description
The following describes specific embodiments of the present utility model with reference to the drawings.
As shown in fig. 1 and 2, the slurry automatic water replenishing device in the investment casting shell-making process of the present embodiment is connected in an investment casting shell-making assembly line, and includes:
the electromagnetic valve 1 is connected with a signal generating device of an investment casting shell-making assembly line,
The water storage tank 2 is externally arranged outside the investment casting shell manufacturing assembly line and is communicated with a slurry barrel 4 pipeline of the investment casting shell manufacturing assembly line,
The PLC system 3 is connected with the electromagnetic valve 1 and is provided with a water supplementing frequency parameter.
The pulp tub 4 is in a constant rotation state.
The height of the water storage tank 2 is higher than the height of the pulp bucket 4.
The water supplementing port led out from the water storage tank 2 extends to the opening of the slurry barrel 4, and a water supplementing height is reserved between the water supplementing port and the slurry liquid level.
The inner cavity 401 of the pulp barrel 4 is arranged obliquely.
The inclination angle of the bottom wall of the accommodating cavity 401 of the pulp barrel 4 is as follows: the included angle between the water-cooling device and the horizontal plane is 8-12 degrees.
The temperature range in the pulp barrel 4 before and after water supplementing is required to be controlled at 21-23 ℃.
The water replenishing flow is uniform-speed water flow.
The single water supplementing requirement meets the single daily requirement.
The specific structure of the utility model is as follows: as shown in fig. 1, the PLC3 system of the present utility model is a control system for receiving the working state signal on the pipeline and sending the working signal to the solenoid valve 1. The water supplementing structure is arranged at the side of the slurry dipping machine.
In the moisturizing structure, water storage tank 2 height is higher, and when opening solenoid valve 1, rivers receive the auxiliary action of gravity and can outwards discharge, because the flow time of control rivers in this scheme, consequently need ensure that rivers tend to even velocity of flow as far as possible to accurate control moisturizing volume.
A hose 5 is led out from the bottom of the water storage tank 2, the hose 5 is led to the opening of the pulp barrel 4, and water is added into the pulp barrel 4 which continuously rotates.
As a matching structure of the water replenishing structure in this scheme, the design of the pulp barrel 4 is also one of the key points of this scheme. The purpose of this scheme is in time, accurate moisturizing, improves product quality, consequently requires thick liquids even, the thick liquids temperature stability of soaking, so in the utility model, still provides a piece slope setting, at uniform velocity pivoted thick liquids bucket 4. As shown in fig. 2, the included angle between the slurry barrel 4 and the ground is preferably 10 degrees, so that when distilled water is added into the slurry barrel 4, the slurry barrel 4 continuously rotates, and the slurry can be homogenized while being added with water under the action of gravity and rotation stirring, so that the slurry is not easy to precipitate, and the uniformity degree is ensured.
In a preferred embodiment of the utility model, the rotation speed of the pulp drum 4 is in the range of 30-65r/min, which can be selectively adjusted according to practical requirements.
The pulp barrel 4 is made of a plate with the thickness of 2-8mm, so that the self strength is ensured to be reliable.
The working principle of the utility model is as follows:
The utility model has the main function of supplementing water in the investment casting shell making process, the water supplementing device comprises a water storage tank 2 and an electromagnetic valve 1, and the electromagnetic valve 1 is communicated with an external PLC3 system and is used for controlling the opening and closing of the electromagnetic valve 1, so that the control of the liquid flow in the water storage tank 2 is realized.
The PLC3 system is used for receiving the working signals of other programs, such as a slurry dipping program, and transmitting the received signals to the solenoid valve 1. After receiving the corresponding signal, the electromagnetic valve 1 opens the valve or closes the valve to supplement water.
In actual operation, after the slurry dipping program is run, the PLC3 system transmits a signal to the electromagnetic valve 1, the valve is opened, and water in the water storage tank 2 flows into the slurry dipping barrel 4. In the process of vacuumizing and dipping the machine, the electromagnetic valve 1 is not opened to supplement water, and after dipping and vacuum breaking, the electromagnetic valve 1 is opened to supplement water.
When the investment casting shell manufacturing assembly line is combined to work, the water replenishing time of each time is set in the PLC3 system according to the water consumption of each mould shell; the water is usually replenished once a day,
A proper amount of distilled water is manually added into the water storage tank 2, a valve of the water storage tank 2 is opened, and then the PLC3 system controls the opening and closing of the electromagnetic valve 1 to realize the on-off of water flow,
After the tree string is clamped, starting a vacuum dipping program of the investment casting shell-making assembly line, and finishing the operation of the program, wherein the electromagnetic valve 1 receives a corresponding signal, the valve of the electromagnetic valve 1 is opened, distilled water in the water storage tank 2 flows into the slurry barrel 4 through the hose 5, and the water supplementing step is finished.
After the water supplementing is finished, the electromagnetic valve 1 is closed, the vacuum dipping machine breaks vacuum, the cabin door is opened, the die shell with the dipped slurry is taken out, and the die shell is sent to the subsequent working procedure for continuous treatment.
The scheme is put into production and used, actual operation data show that the slurry adjustment time can be saved for 3 hours every day, the production efficiency is greatly improved, in addition, staff only needs to supplement water into the water storage tank 2, and the product quality risk and the workload of the staff are greatly reduced.
The above description is intended to illustrate the utility model and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the utility model.
Claims (9)
1. An automatic slurry water replenishing device in an investment casting shell making process is characterized in that: connected in an investment casting shell making assembly line, comprising:
a solenoid valve (1) connected with a signal generating device of the investment casting shell-making assembly line,
The water storage tank (2) is externally arranged outside the investment casting shell manufacturing assembly line and is communicated with a slurry barrel (4) pipeline of the investment casting shell manufacturing assembly line,
And the PLC system (3) is connected with the electromagnetic valve (1) and is set with a water supplementing frequency parameter.
2. An automatic slurry replenishing device for investment casting shell making process according to claim 1, wherein: the pulp barrel (4) is in a constant rotation state.
3. An automatic slurry replenishing device for investment casting shell making process according to claim 1, wherein: the water storage tank (2) is higher than the pulp barrel (4).
4. An automatic slurry replenishing device for investment casting shell making process according to claim 2, wherein: the water supplementing port led out from the water storage tank (2) extends to the opening of the slurry barrel (4), and a water supplementing height is reserved between the water supplementing port and the liquid level of the slurry.
5. An automatic slurry replenishing device for investment casting shell making process according to claim 2, wherein: the inner cavity (401) of the pulp barrel (4) is obliquely arranged.
6. An automatic slurry replenishing device for investment casting shell making process according to claim 5, wherein: the inclination angle of the bottom wall of the pulp barrel (4) containing cavity (401) is as follows: the included angle between the water-cooling device and the horizontal plane is 8-12 degrees.
7. An automatic slurry replenishing device for investment casting shell making process according to claim 1, wherein: the temperature range in the pulp barrel (4) before and after water supplementing is required to be controlled at 21-23 ℃.
8. An automatic slurry replenishing device for investment casting shell making process according to claim 1, wherein: the water replenishing flow is uniform-speed water flow.
9. An automatic slurry replenishing device for investment casting shell making process according to claim 1, wherein: the single water supplementing requirement meets the single daily requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322956413.4U CN221209801U (en) | 2023-11-01 | 2023-11-01 | Automatic slurry water supplementing device in investment casting shell making process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322956413.4U CN221209801U (en) | 2023-11-01 | 2023-11-01 | Automatic slurry water supplementing device in investment casting shell making process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221209801U true CN221209801U (en) | 2024-06-25 |
Family
ID=91546172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322956413.4U Active CN221209801U (en) | 2023-11-01 | 2023-11-01 | Automatic slurry water supplementing device in investment casting shell making process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221209801U (en) |
-
2023
- 2023-11-01 CN CN202322956413.4U patent/CN221209801U/en active Active
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