A discharging device for casting model wax
By designing the discharge assembly inside the box and using a combination of scraper and air jet, the problem of wax material not being able to completely detach from the inner wall in the casting model wax discharge device was solved, achieving efficient wax material discharge and cutting processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHI JIANCHI DENTISTRY EQUIP CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-26
AI Technical Summary
Existing casting model wax discharge devices suffer from the problem that the wax cannot completely detach from the inner wall of the barrel, resulting in low discharge efficiency.
A discharge device comprising a housing, a motor, an air pump, and a discharge assembly is designed. The discharge assembly consists of a connecting plate, a spray pipe, a scraper, a scraping section, and a cutter. By having the scraper adhere to the inner wall of the housing and rotate downwards, combined with air jetting from the spray pipe and strip cutting by the cutter, the wax material is completely scraped and cut.
It improves the separation efficiency of wax from the inner wall of the box, reduces residue, ensures complete discharge of wax, and prevents excessively large sizes from affecting the discharge process.
Smart Images

Figure CN224273177U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial wax production, and in particular to a discharge device for casting model wax. Background Technology
[0002] Wax is an oily substance produced by animals, plants or minerals. It is solid at room temperature, has plasticity, is easily melted, is insoluble in water, but soluble in carbon disulfide and benzene.
[0003] A search revealed the Chinese patent "A Discharge Device for Titanium Alloy Casting Model Wax" (authorization announcement number CN218656685U). This utility model relates to the field of industrial wax-making equipment and discloses a discharge device for titanium alloy casting model wax, comprising a barrel body. An electric push rod is fixedly connected to the middle of the top surface of the barrel body. The outer side of the pressure plate is fixedly connected to the inner wall of a rubber ring, and the outer side of the rubber ring is slidably connected to the inner wall of the barrel body. An air pump is fixedly connected to one side of the middle of the top surface of the barrel body. The output end of the air pump is fixedly connected to one end of an air outlet pipe. The outer side of the middle of the air outlet pipe is slidably connected to one side of the top of the barrel body, and the other end of the air outlet pipe is fixedly connected to one side of the middle of the pressure plate. In this invention, by driving the electric push rod to extend the output end, the pressure plate can be moved down, and the rubber ring can slide on the inner wall of the barrel, thereby scraping off the wax adhering to the inner wall of the barrel. By driving the air pump, gas can be blown out from the air outlet, thereby driving the residual wax into the interior of the discharge pipe, thus avoiding the problem of too much material in the barrel causing the material to not be discharged.
[0004] Although the aforementioned model wax dispensing device can scrape and blow out the wax from the inner wall of the barrel by using a rubber ring and an air vent, the rubber ring cannot contact the bottom of the barrel, and there are only two air vents, which can only blow air onto the wax near the air vents. This creates a blind spot in the air blowing process, which can easily cause some wax to not completely detach from the inner wall of the barrel, thus affecting the efficiency of model wax dispensing.
[0005] Therefore, a discharge device for casting model wax is proposed to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide a discharge device for casting model wax in order to solve the above-mentioned problems, thereby improving the problem that the model wax discharge device cannot completely separate the wax from the inner wall of the barrel, which affects the discharge efficiency of model wax.
[0007] The present invention achieves the above objectives through the following technical solution: a material discharge device for casting model wax, comprising: a box body and a motor and an air pump disposed above it;
[0008] A discharge assembly, which is disposed in the box and is used to scrape the wax material from the inner wall of the box so that it is completely discharged;
[0009] The discharge assembly includes a connecting plate disposed in the housing, a spray pipe disposed below the connecting plate, and multiple nozzles connected in a circular array below the spray pipe. A scraper is disposed below the connecting plate and is elastically configured.
[0010] Preferably, the discharge assembly further includes a push rod disposed at the top of the box body. The telescopic end of the push rod is fixedly connected to the connecting plate, and the top of the push rod is fixedly connected to the output end of the motor. Through the push rod, the scraper can be controlled to move downward to completely scrape off the wax material on the inner wall of the box body.
[0011] Preferably, the scraper is attached to the inner wall of the box, and five scrapers are arranged in a circular array. This arrangement can improve the coverage of the scraper in removing wax from the inside of the box.
[0012] Preferably, a scraping part is provided below the scraper, and the cross-sectional shape of the scraping part is conical. The scraping part can improve the efficiency of separating the wax material from the inner wall of the box, and can also guide the scraper.
[0013] Preferably, the surface of the scraping part is provided with a cutter, and multiple cutters are arranged in a rectangular array. The cutter can cut the scraped wax into strips to prevent the wax from being too large and affecting the discharge.
[0014] Preferably, the cutter is made of stainless steel, and the spacing between multiple cutters is consistent.
[0015] Preferably, the motor, push rod, and scraper arranged in a ring are located on the same axis.
[0016] The beneficial effects of this utility model are:
[0017] By setting up a discharge assembly, when personnel need to discharge the wax from the box, the push rod and scraper can be used to scrape off the wax adhering to the inner wall of the box. At the same time, the elasticity of the scraper can be utilized to bend along the curvature of the box when it comes into contact with the inner bottom of the box, thereby removing the wax at the bottom of the box as well, improving the completeness of the model wax discharge and reducing wax residue.
[0018] When the push rod drives the scraper to move down and scrape the wax material on the inner wall of the box, the motor can make the push rod rotate and drive the connecting plate and multiple scrapers to rotate and descend, which can improve the coverage of the scraper on the inner wall of the box and achieve the effect of completely scraping the wax material. In addition, with the cutter on the surface of the scraper's scraping part, the scraped wax material can also be cut into strips, which can effectively prevent the wax material from being too large and affecting the discharge. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the internal structure of the box body of this utility model;
[0021] Figure 3 This is a schematic diagram of the material discharge assembly of this utility model;
[0022] Figure 4 This is a schematic diagram of the scraper structure of this utility model;
[0023] Figure 5 This is a schematic diagram of the bending structure of the scraper of this utility model.
[0024] In the diagram: 1. Box body; 2. Motor; 3. Air pump; 4. Discharge assembly; 401. Push rod; 402. Connecting plate; 403. Spray pipe; 404. Scraper; 405. Shovel; 406. Cutter. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] In practical implementation: such as Figure 1-5 As shown, a wax discharge device for casting models includes: a housing 1 and a motor 2 and an air pump 3 disposed above it; a discharge assembly 4 disposed in the housing 1 and used to scrape the wax material on the inner wall of the housing 1 so that it is completely discharged.
[0027] It should be noted that: a feed inlet is provided on the upper part of the surface of the box 1. Before the wax material is injected or cooled and needs to enter the box 1, the push rod 401 needs to be retracted and the connecting plate 402 needs to be positioned above the feed inlet.
[0028] like Figure 2 , Figure 3 and Figure 5 As shown, the discharge assembly 4 includes a connecting plate 402 disposed in the housing 1, and a nozzle 403 disposed below the connecting plate 402. Multiple nozzles are connected in a ring array below the nozzle 403.
[0029] The nozzle 403 is located below the connecting plate 402. The air outlet of the air pump 3 is connected to an air pipe. The other end of the air pipe passes through the box 1 and extends to the bottom of the connecting plate 402, where it connects to the nozzle 403. When the connecting plate 402 drives the scraper 404 to descend and scrape the wax material on the inner wall of the box 1, the nozzle 403 has an outward spray angle, which helps the scraper 404 to separate the wax material from the inner wall of the box 1. When the scraper 404 moves to the lower inner part of the box 1 and bends, the gas sprayed from the nozzle 403 will blow along the bent scraper 404 to the bottom of the scraped wax material, promoting the separation of the wax material from the inner wall of the box 1.
[0030] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a scraper 404 is provided below the connecting plate 402, and the scraper 404 is elastically configured; the discharge assembly 4 also includes a push rod 401 disposed at the top inside the housing 1, the telescopic end of the push rod 401 is fixedly connected to the connecting plate 402, and the top of the push rod 401 is fixedly connected to the output end of the motor 2; the scraper 404 is attached to the inner wall of the housing 1, and five scrapers 404 are arranged in a circular array; a scraping part 405 is provided below the scraper 404, and the cross-sectional shape of the scraping part 405 is conical; a cutter 406 is provided on the surface of the scraping part 405, and multiple cutters 406 are arranged in a rectangular array; the cutters 406 are made of stainless steel, and the spacing between the multiple cutters 406 is consistent;
[0031] When the staff needs to discharge the wax, the motor 2 is turned on first. The output end of the motor 2 drives the push rod 401 to rotate slowly. At this time, the extension end of the push rod 401 will drive the connecting plate 402 and the scraper 404 below it to rotate and move downward. The scraper 404 is in contact with the inner wall of the box 1. Therefore, when the scraper 404 moves downward, the wax on the inner wall of the box 1 will be scraped off by the scraper part 405 below the scraper 404. The scraper part 405 is cut into strips by the cutter 406 on the surface of the scraper part 405. This can effectively prevent the wax from affecting the discharge due to its large size. When the scraper part 405 below the scraper 404 approaches the inner bottom of the box 1, the scraper part 405 will first contact the inner bottom of the box 1 and drive the scraper 404 to bend along the arc of the inner bottom of the box 1. At this time, the scraper part 405 below the scraper 404 can scrape off the wax at the inner bottom of the box 1.
[0032] It should be noted that the scraper 404 and the cutter 406 are made of stainless steel. The connection between the cutter 406 and the scraper 404 is by welding. The bottom of the box 1 is tapered, so there is a certain curvature at the corner. When the scraper 404 moves to the lower part of the box 1, the scraping part 405 at its lower end will be guided by the curvature of the lower part of the box 1 and change its trajectory, thus driving the scraper 404 to bend. After scraping is completed, the stainless steel scraper 404 can still be reset and fit against the inner wall of the box 1 for use in the next scraping operation.
[0033] Meanwhile, the motor 2 and air pump 3 above the housing 1 are external power sources, while the push rod 401 in the housing 1 is an electric push rod 401 with an internal power source and a battery inside. Therefore, when in use, the output end of the motor 2 drives it to rotate, and the push rod 401 will not be affected by any wires.
[0034] The motor 2, push rod 401 and scraper 404 arranged in a ring are on the same axis;
[0035] Working principle: When the operator needs to remove the wax, motor 2 is turned on first. The output end of motor 2 drives the push rod 401 to rotate slowly. At this time, the telescopic end of push rod 401 will drive the connecting plate 402 and the scraper 404 below it to move down. The scraper 404 is in contact with the inner wall of the box 1. Therefore, when the scraper 404 moves down, the wax on the inner wall of the box 1 will be scraped off by the scraping part 405 below the scraper 404. At the same time, air pump 3 is turned on, and air pump 3 injects gas into the spray pipe 403 and sprays it downward through the circular nozzle below the spray pipe 403, which can improve the separation of wax from the inner wall of the box 1. The efficiency is improved, and the cutting blade 406 on the surface of the scraping part 405 cuts the wax into strips, which can effectively prevent the wax from being too large and affecting the discharge. When the scraping part 405 below the scraper 404 approaches the inner bottom of the box 1, the scraping part 405 will first contact the inner bottom of the box 1 and drive the scraper 404 to bend along the curvature of the inner bottom of the box 1. At this time, the scraping part 405 below the scraper 404 can scrape the wax at the inner bottom of the box 1. At the same time, the gas sprayed by the nozzle 403 can accelerate the separation of the wax from the inner wall of the box 1 and improve the discharge effect of the wax.
[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A discharge device for casting model wax, characterized in that, include: The housing (1) and the motor (2) and air pump (3) mounted on it; Discharge assembly (4), which is disposed in the box (1) and is used to scrape the wax material on the inner wall of the box (1) so that it is completely discharged; The discharge assembly (4) includes a connecting plate (402) disposed in the housing (1), a nozzle (403) is disposed below the connecting plate (402), and multiple nozzles are connected in a ring array below the nozzle (403). A scraper (404) is disposed below the connecting plate (402), and the scraper (404) is elastically disposed.
2. A device for dispensing a casting model wax according to claim 1, characterized in that: The discharge assembly (4) also includes a push rod (401) disposed at the top of the box (1). The telescopic end of the push rod (401) is fixedly connected to the connecting plate (402), and the top of the push rod (401) is fixedly connected to the output end of the motor (2).
3. A device for dispensing a casting model wax according to claim 1, wherein: The scraper (404) is attached to the inner wall of the box (1), and five scrapers (404) are arranged in a ring array.
4. A device for dispensing a casting model wax according to claim 1, wherein: A scraping part (405) is provided below the scraper (404), and the cross-sectional shape of the scraping part (405) is conical.
5. A device for dispensing a casting model wax according to claim 4, characterized in that: The surface of the shovel (405) is provided with a cutter (406), and multiple cutters (406) are arranged in a rectangular array.
6. A device for dispensing a casting model wax according to claim 5, wherein: The cutter (406) is made of stainless steel, and the spacing between multiple cutters (406) is consistent.
7. A device for dispensing a casting model wax according to claim 1, wherein: The motor (2), push rod (401), and scraper (404) arranged in a ring are on the same axis.