False tooth production material feeding device

Abstract

The utility model relates to the technical field of false tooth production, and discloses a false tooth production material feeding device which comprises a machine box, a screen box is arranged in the machine box, and a screen plate is installed in the middle of the inner side wall of the screen box. And a transmission plate is mounted in the middle of the bottom of the sieve plate close to one side. When the vibrating motor is started, high-frequency vibration generated by the vibrating motor is transmitted to the sieve plate through the transmission plate, so that false tooth production materials on the sieve plate continuously move under the vibration effect, efficient screening is achieved, and it is guaranteed that the particle size of the materials entering the subsequent process meets the false tooth production requirement. According to the utility model, the cylinder drives the lifting cleaning plate to move up and down, and the cleaning brush goes down to go deep into the sieve pores along with the lifting cleaning plate to automatically clean impurities blocking the sieve pores, so that the labor cost is saved, and the machine does not need to be shut down for manual cleaning. Taking feeding of resin materials for manufacturing removable dentures as an example, the continuous and stable feeding and screening process can be guaranteed, production stagnation caused by screen blockage is avoided, and the production efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of dental prosthesis production technology, and in particular to a dental prosthesis production material feeding device. Background Technology

[0002] In the dental prosthesis manufacturing industry, the material feeding process is a crucial initial step in the entire production process, and the performance of the equipment directly affects the production quality and efficiency of dental prostheses. In recent years, with the booming development of the oral healthcare market, the demand for dental prostheses has continued to rise, and the limitations of traditional dental prosthesis material feeding devices have become increasingly apparent.

[0003] Early feeding devices were relatively simple in structure, mostly just material conveying equipment. They could only perform the basic task of transferring denture materials from storage to processing area, lacking effective control over material quality. During storage and transportation, denture materials are easily contaminated with impurities. For example, resin materials may contain tiny metal particles or dust, or ceramic materials may have uneven particle size. If these impurities and particle size issues are not addressed during the feeding stage, they will lead to defects in the dentures during subsequent processing. For instance, impurities can cause bubbles and cracks during sintering, affecting the strength and aesthetics of the dentures; uneven particle size can result in an uneven denture surface, affecting wearing comfort, and even causing poor fit between the denture and the patient's mouth, requiring rework and significantly wasting materials and time.

[0004] While some traditional feeding devices are equipped with screening functions, their screening structures are poorly designed. A common approach is to use a simple fixed screen, where materials are screened by gravity. This method is extremely inefficient. Firstly, the screening speed is slow, making it difficult to meet the growing demand for large-scale denture production. Secondly, the screen is prone to clogging; once it becomes clogged with larger particles or impurities, the screening process is interrupted, requiring frequent manual cleaning. In the busy denture production workshop, manual cleaning is not only labor-intensive but also leads to production stoppages, severely impacting efficiency. Therefore, those skilled in the art have developed a denture production material feeding device to address the aforementioned problems. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of existing technologies by proposing a feeding device for denture production materials. To achieve the above objective, this utility model provides the following technical solution: It includes a housing, inside which a sieve box is installed, and a sieve plate is installed in the middle of the inner side wall of the sieve box. A transmission plate is installed near one side of the bottom center of the sieve plate, and a vibration motor is connected below the transmission plate. When the vibration motor is activated, the high-frequency vibration it generates is transmitted to the sieve plate through the transmission plate, causing the denture production materials on the sieve plate to move continuously under the vibration. Fine particles and qualified particle sizes in the material can quickly pass through the array of sieve holes located on both sides of the transmission plate at the top of the sieve plate, achieving efficient screening and ensuring that the particle size of the material entering subsequent processes meets the requirements for denture production.

[0006] Preferably, to address the problem of screen holes being easily clogged by impurities during the screening process, an installation groove is opened near the middle position on the inner side wall of the casing. An installation plate is installed at the bottom middle position of the inner side wall of the installation groove, and a cylinder is installed at the top middle position of the installation plate. The output end of the cylinder passes through the inner side wall of the screen box and is connected to a lifting cleaning plate. Several cleaning brushes arranged in an array are installed at the bottom of the lifting cleaning plate, and the cleaning brushes are matched with the screen holes.

[0007] Preferably, when the cylinder is working, its output end pushes the lifting cleaning plate to reciprocate up and down near the upper end of the inner side wall of the screen box. When the lifting cleaning plate descends, the cleaning brush can penetrate deep into the screen holes to remove impurities clogging the screen holes, ensuring that the screen holes remain unobstructed and maintaining continuous and efficient screening. This eliminates the need for manual cleaning of the screen and greatly improves production efficiency.

[0008] Preferably, a feeding bin is located at the top center of the inner side wall of the housing, and a conveying screw is rotatably connected to the middle of the inner side wall of the feeding bin. A first drive motor is installed near the top center of one side wall of the housing, and the output end of the first drive motor is connected to the input end of the conveying screw. After the first drive motor is started, it drives the conveying screw to rotate, and the denture production material is smoothly and precisely pushed forward in the feeding bin along the spiral direction of the conveying screw, ensuring the continuity and stability of the feeding process.

[0009] Preferably, a feeding port is provided at the bottom center of the feeding hopper, away from the first drive motor. The feeding port is connected to the screen box, allowing the material conveyed from the feeding hopper to smoothly enter the screen box for screening. A discharge port is provided at the middle of one side wall of the machine body, near the lower end and at the material discharge end of the screen plate. A material discharge hopper is installed on one side wall of the discharge port. Denture production materials that have passed the screening by the screen plate are discharged from the discharge port and fall into the material discharge hopper for easy subsequent retrieval. The entire feeding path is reasonably designed and meets the requirements of the denture production process.

[0010] Preferably, a feed inlet is installed on the top center side of the chassis, at the feeding end of the feeding bin, to facilitate the input of materials for denture production. A waste bin door is installed on the front side wall of the chassis, at the front side of the screen box, to facilitate the cleaning of impurities and waste materials removed by the cleaning brushes inside the screen box. A top cover is installed on the top of the chassis, near the center, above the feeding bin, which not only prevents foreign objects from entering the equipment and affecting feeding and screening operations, but also facilitates opening the cover for internal inspection and maintenance.

[0011] Preferably, a control panel is installed on the front side wall of the machine casing, near one side. The control panel is electrically connected to the first drive motor, the cylinder, and the vibrating motor. Operators can conveniently and quickly control various aspects of the equipment's operation through the control panel, such as adjusting the speed of the first drive motor to control the feeding speed, controlling the cylinder's lifting frequency to adapt to different screen cleaning needs, starting or stopping the vibrating motor, and adjusting its vibration intensity. This enables intelligent operation, improving the equipment's ease of use and production flexibility.

[0012] This utility model has the following beneficial effects:

[0013] 1. In this utility model, a cylinder drives a lifting cleaning plate to move up and down. The cleaning brush descends with the lifting cleaning plate and penetrates deep into the screen holes to automatically clean the impurities clogging the screen holes. This not only saves labor costs but also eliminates the need for manual cleaning during machine downtime. Taking the feeding of resin materials for making removable dentures as an example, it can ensure a continuous and stable feeding and screening process, avoid production stoppages caused by screen blockage, and greatly improve production efficiency.

[0014] 2. In this invention, the particle size uniformity of the denture material has a significant impact on the processing technology and product performance. The sieve holes in the device are arranged in an array with precise dimensions, which can effectively control the particle size range of the material passing through. For example, in the production of porcelain crowns, porcelain powder with uniform particle size can ensure uniform temperature conduction during sintering, resulting in a consistent color and dense texture of the porcelain layer, improving the aesthetics and durability of the denture. The first drive motor drives the conveying screw to rotate, which can stably and evenly transport the denture production material from the feeding bin to the sieve box through the feeding port. The speed of the first drive motor can be flexibly adjusted through the control panel, thereby precisely controlling the feeding speed and meeting the requirements of different production processes for material conveying volume and speed.

[0015] 3. In this utility model, a waste material bin door is installed on the front side wall of the casing, located in front of the screen box. This makes it extremely convenient to clean the impurities and waste materials removed by the cleaning brush inside the screen box; simply opening the bin door allows for quick cleaning. Simultaneously, the top cover facilitates internal maintenance and effectively prevents foreign objects from entering, ensuring stable equipment operation and extending its service life. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the vertical sectional structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the orthographic section of the present invention;

[0018] Figure 3 This is a front view structural diagram of the present utility model;

[0019] Figure 4 This is a top view of the structure of this utility model.

[0020] Legend: 1. Chassis; 2. Feed inlet; 3. Feeding bin; 4. Conveying screw; 5. First drive motor; 6. Feeding port; 7. Mounting slot; 8. Mounting plate; 9. Cylinder; 10. Screen box; 11. Lifting cleaning plate; 12. Screen plate; 13. Top cover plate; 14. Discharge port; 15. Discharge bin; 16. Screen holes; 17. Transmission plate; 18. Vibration motor; 19. Cleaning brush; 20. Control panel; 21. Waste bin door. Detailed Implementation

[0021] 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.

[0022] Reference Figure 1 — Figure 4 A feeding device for denture production materials includes a housing 1. An installation groove 7 is provided near the middle of the inner side wall of the housing 1. An installation plate 8 is installed at the middle of the bottom of the inner side wall of the installation groove 7. The device is characterized in that: a cylinder 9 is installed at the middle of the top of the installation plate 8; a sieve box 10 is provided below the installation plate 8 on the inner side wall of the housing 1; the output end of the cylinder 9 penetrates the inner side wall of the sieve box 10; the output end of the cylinder 9 is connected to a lifting cleaning plate 11; a plurality of cleaning brushes 19 arranged in an array are installed at the bottom of the lifting cleaning plate 11; the lifting cleaning plate 11 is slidably connected to the inner side wall of the sieve box 10 near the upper end; a sieve plate 12 is installed at the middle of the inner side wall of the sieve box 10; when the cylinder 9 operates, its output end pushes the lifting cleaning plate 11 to reciprocate up and down near the upper end of the inner side wall of the sieve box 10. When the lifting cleaning plate 11 descends, the cleaning brush 19 can penetrate deep into the screen hole 16 to clean out the impurities clogging the screen hole, ensuring that the screen hole is always unobstructed and maintaining the continuous and efficient screening work. There is no need for manual cleaning of the screen, which greatly improves production efficiency.

[0023] A transmission plate 17 is installed at the bottom center of the sieve plate 12 near one side. A vibration motor 18 is installed at the bottom center of the transmission plate 17. Several arrayed sieve holes 16 are opened at the top of the sieve plate 12 and on both sides of the transmission plate 17. The several sieve holes 16 are matched with the corresponding cleaning brushes 19. Fine particles and qualified particle sizes in the material can quickly pass through the arrayed sieve holes 16 at the top of the sieve plate 12 and on both sides of the transmission plate 17, achieving efficient screening and ensuring that the particle size of the material entering the subsequent process meets the requirements for denture production.

[0024] A feeding bin 3 is provided at the top center of the inner side wall of the housing 1. A conveying screw 4 is rotatably connected to the middle of the inner side wall of the feeding bin 3. A first drive motor 5 is installed near the top center of one side wall of the housing 1. The output end of the first drive motor 5 is connected to the input end of the conveying screw 4. After the first drive motor 5 is started, it drives the conveying screw 4 to rotate. The denture production material is pushed forward smoothly and accurately in the feeding bin 3 along the spiral direction of the conveying screw 4, ensuring the continuity and stability of the feeding process. A feeding port 6 is provided at the bottom center of the feeding bin 3 on the side away from the first drive motor 5. The feeding port 6 is connected to the screen box 10.

[0025] A feed inlet 2 is installed on the top center side of the chassis 1, at the feeding end of the feeding bin 3. Denture production materials enter the feeding bin 3 through the feed inlet 2. A discharge port 14 is opened on the middle of one side wall of the chassis 1 near the lower end, at the discharge end of the screen plate 12. A discharge bin 15 is installed on the side wall of the discharge port 14. A waste bin door 21 is installed on the front side wall of the chassis 1, in front of the screen box 10. A top cover plate 13 is installed on the top of the chassis 1 near the middle, above the feeding bin 3. A control panel 20 is installed on the middle of the front side wall of the chassis 1, near one side. The control panel 20 is electrically connected to the first drive motor 5, the cylinder 9, and the vibration motor 18.

[0026] Working Principle: Initially, the dental prosthesis production material enters the feeding bin 3 through the feed inlet 2. The conveying screw 4 inside the feeding bin 3 begins to rotate under the drive of the first drive motor 5. The first drive motor 5 is installed in the middle of one side wall of the housing 1, near the upper end, and its output end is connected to the input end of the conveying screw 4, thus providing power to the conveying screw 4. As the conveying screw 4 rotates, the material is pushed forward along the spiral direction of the screw within the feeding bin 3. A feeding port 6 is located at the bottom center of the feeding bin 3, away from the first drive motor 5, through which the conveyed material enters the screen box 10.

[0027] Material entering the sieve box 10 falls onto the sieve plate 12. The sieve plate 12 is installed in the middle of the inner side wall of the sieve box 10, and a transmission plate 17 is installed at the bottom center near one side. The vibration motor 18 installed below the transmission plate 17 starts to work. The vibration generated by the vibration motor 18 is transmitted to the sieve plate 12 through the transmission plate 17, causing the sieve plate 12 to vibrate at a high frequency. Several sieve holes 16 are arranged in an array on the top of the sieve plate 12, located on both sides of the transmission plate 17. Under the action of vibration, material particles that do not meet the size requirements pass through the sieve holes 16 and fall downwards.

[0028] During long-term use, the sieve holes 16 on the sieve plate 12 may become clogged by larger particles or impurities. In this case, the cylinder 9, installed at the top center of the mounting plate 8, begins to operate. The mounting plate 8 is located in the mounting groove 7 on the inner wall of the housing 1. The output end of the cylinder 9 passes through the inner wall of the sieve box 10 and is connected to the lifting cleaning plate 11. The cylinder 9 pushes the lifting cleaning plate 11 to reciprocate up and down near the upper end of the inner wall of the sieve box 10. Several cleaning brushes 19 arranged in an array at the bottom of the lifting cleaning plate 11 are matched to the sieve holes 16. When the lifting cleaning plate 11 descends, the cleaning brushes 19 can penetrate deep into the sieve holes 16 to clean out the impurities clogging the sieve holes, ensuring unobstructed sieve holes and maintaining the screening effect.

[0029] Materials that pass the screening process by the sieve plate 12 are discharged from the discharge port 14. The discharge port 14 is located in the middle of one side wall of the machine housing 1, near the lower end, and at the discharge end of the sieve plate 12. A discharge bin 15 is installed on one side wall of the discharge port 14 to collect qualified materials for subsequent denture production. A waste bin door 21 is installed on the front side wall of the machine housing 1, in front of the sieve box 10, to facilitate the cleaning of impurities and waste materials removed by the cleaning brush 19 inside the sieve box 10. A top cover plate 13 is installed on the top of the machine housing 1, near the middle, above the feeding bin 3, to prevent foreign objects from entering the feeding device. The operator can easily control the first drive motor 5, cylinder 9, and vibration motor 18 through the control panel 20 installed on one side of the front side wall of the machine housing 1, thereby flexibly adjusting various working processes such as feeding, screening, and cleaning, ensuring the efficient and stable operation of the entire denture production material feeding device.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A material feeding device for denture production, comprising a housing (1), wherein an installation groove (7) is provided on the inner side wall of the housing (1) near the middle position, and an installation plate (8) is installed at the middle position of the bottom of the inner side wall of the installation groove (7), characterized in that: A cylinder (9) is installed at the top center of the mounting plate (8). A sieve box (10) is provided below the mounting plate (8) on the inner wall of the casing (1). The output end of the cylinder (9) passes through the inner wall of the sieve box (10). The output end of the cylinder (9) is connected to a lifting cleaning plate (11). Several cleaning brushes (19) arranged in an array are installed at the bottom of the lifting cleaning plate (11). The lifting cleaning plate (11) is slidably connected to the inner wall of the sieve box (10) near the upper end. A sieve plate (12) is installed at the middle of the inner wall of the sieve box (10). A transmission plate (17) is installed at the bottom center of the sieve plate (12) near one side. A vibration motor (18) is installed at the bottom center of the transmission plate (17). A number of sieve holes (16) are respectively opened at the top of the sieve plate (12) and at both sides of the transmission plate (17). The number of sieve holes (16) are respectively matched with the corresponding cleaning brushes (19).

2. The denture production material feeding device according to claim 1, characterized in that: A feeding bin (3) is provided at the top middle position of the inner side wall of the machine housing (1). A conveying screw (4) is rotatably connected at the middle position of the inner side wall of the feeding bin (3). A first drive motor (5) is installed at the middle position of one side wall of the machine housing (1) near the upper end. The output end of the first drive motor (5) is connected to the input end of the conveying screw (4).

3. The denture production material feeding device according to claim 2, characterized in that: A feeding port (6) is provided at the bottom center of the feeding bin (3) and on the side away from the first drive motor (5), and the feeding port (6) is connected to the screen box (10).

4. The denture production material feeding device according to claim 1, characterized in that: A discharge port (14) is provided on the middle of one side wall of the machine box (1) near the lower end and at the discharge end of the screen plate (12). A discharge bin (15) is installed on one side wall of the discharge port (14).

5. A dental prosthesis material feeding device according to claim 3, characterized in that: The feed port (2) is installed on the top middle side of the chassis (1) and at the feed end of the feed bin (3).

6. A dental prosthesis material feeding device according to claim 3, characterized in that: The waste bin door (21) is installed on the front side wall of the casing (1) and in front of the screen box (10).

7. A dental prosthesis material feeding device according to claim 3, characterized in that: The top of the chassis (1) is near the middle position and above the feeding bin (3) and is equipped with a top cover plate (13).

8. A denture production material feeding device according to claim 3, characterized in that: A control panel (20) is installed on the middle of the front side wall of the chassis (1), near one side. The control panel (20) is electrically connected to the first drive motor (5), the cylinder (9), and the vibration motor (18).

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