Ceramic sintering device with powder spreading function

Abstract

The utility model discloses a ceramic sintering device with a powder spreading function, which comprises a rack, a laser sintering mechanism is arranged at the top of the rack, a powder spreading mechanism is arranged below the inner side of the rack, a computer is arranged above the front end of the outer wall of one side of the rack, an audible and visual alarm is arranged at the front end of one side of the top end of the rack, and a power supply is arranged on the audible and visual alarm. A powder laying workbench is arranged on the powder laying mechanism, a powder supply cylinder, a forming cylinder, a powder return groove and a transparent plate are sequentially arranged at the bottom of the powder laying workbench from left to right, and a first piston and a second piston are arranged in the powder supply cylinder and the forming cylinder correspondingly. According to the powder spreading device, the contact friction frequency between the powder spreading plate and the powder spreading workbench is reduced, the service life of the powder spreading plate is prolonged, the abrasion state of the powder spreading plate can be detected, production accidents caused by the fact that abrasion of the powder spreading plate cannot be found in time are avoided, and operators can take maintenance measures in advance conveniently.

Description

Technical Field

[0001] This utility model relates to the field of laser sintering equipment technology, specifically a ceramic sintering device with powder spreading function. Background Technology

[0002] In the preparation of ceramic materials, laser sintering technology is widely used due to its high efficiency and precision. As a key link in this technology, the powder spreading function directly affects the forming quality and precision of ceramic products. As the core component for achieving uniform powder spreading, the performance of the powder spreading plate is of paramount importance.

[0003] A search revealed that patent publication number CN106041080B discloses a powder material laser sintering forming device that is simple to operate, has high powder spreading efficiency, good powder spreading effect, and wide applicability. The technical solution employs a system where hydraulic cylinders are installed in the collecting cylinder, forming cylinder, and powder supply cylinder, with pusher baffles on the hydraulic cylinders. A powder spreading slide rail is located in the middle of the forming cavity, a roller frame is slidably mounted on the powder spreading slide rail, a powder spreading roller is mounted on the roller frame, and a roller frame screw is installed on the roller frame. A preheating guide rail is located at the top of the forming cavity, a preheating shell is slidably mounted on the preheating guide rail, a preheating rod is located inside the preheating shell, an infrared thermometer is located outside the preheating shell, a laser scanning system is located at the top of the forming cavity, and an air intake and exhaust device is located on the side wall of the forming cavity. This invention is widely used in powder material laser sintering forming.

[0004] In existing ceramic sintering equipment with powder spreading function, the powder spreading plate frequently comes into contact with and rubs against the powder spreading worktable surface during reciprocating motion, resulting in significant wear problems. As the usage time increases, defects such as scratches and deformation appear on the surface of the powder spreading plate, which not only leads to a decrease in powder spreading uniformity and affects the sintering quality of ceramic products, but also increases the frequency of powder spreading plate replacement, increasing production costs and equipment maintenance workload. In addition, traditional powder spreading plates lack effective means of detecting their own wear status during operation, making it impossible to detect potential problems in time, which can easily lead to production accidents and reduce production efficiency. Therefore, a ceramic sintering equipment with powder spreading function is designed. Utility Model Content

[0005] In view of the defects or deficiencies of existing ceramic sintering equipment, the purpose of this utility model is to provide a ceramic sintering equipment with powder spreading function. This not only reduces the number of contact frictions between the powder spreading plate and the powder spreading worktable, extending the service life of the powder spreading plate, but also detects the wear condition of the powder spreading plate, avoiding production accidents caused by failure to detect the wear of the powder spreading plate in time.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a ceramic sintering device with powder spreading function, including a frame, a laser sintering mechanism at the top of the frame, a powder spreading mechanism at the lower inner side of the frame, a computer at the upper front end of one side of the outer wall of the frame, and an audible and visual alarm at the front end of one side of the top of the frame.

[0008] The powder spreading mechanism is equipped with a powder spreading worktable. From left to right, the bottom of the powder spreading worktable is provided with a powder supply cylinder, a forming cylinder, a powder return trough, and a transparent plate. The powder supply cylinder and the forming cylinder are respectively provided with a first piston and a second piston. The first piston and the second piston are respectively installed on the telescopic ends of the first lifting assembly and the second lifting assembly. The first lifting assembly and the second lifting assembly are respectively provided on both sides of the mounting frame. A CCD camera is provided on one side of the top of the mounting frame. The powder spreading assembly is provided on the upper inner side of the powder spreading worktable.

[0009] The powder spreading assembly is equipped with a rodless reciprocating cylinder. An electric push rod is installed at the bottom end of the support plate on the rodless reciprocating cylinder. A U-shaped mounting plate is installed at the bottom end of the electric push rod. A powder spreading plate is installed in the U-shaped groove on the bottom of the U-shaped mounting plate.

[0010] Preferably, the mounting frame is located below the powder spreading worktable, and both the mounting frame and the powder spreading worktable are arranged inside the frame.

[0011] Preferably, the outer wall of the top of the powder spreading plate and the groove wall of the U-shaped groove on the U-shaped mounting plate are in clearance fit, and the powder spreading plate and the U-shaped mounting plate are fixedly connected by fastening bolts.

[0012] Preferably, guide posts are installed at both the front and rear ends of the top of the U-shaped mounting plate. The top of the guide post passes through a through hole on the surface of the support plate of the rodless reciprocating cylinder, and the outer wall of the guide post and the wall of the through hole are in clearance fit.

[0013] Preferably, the CCD camera is located directly below the transparent plate.

[0014] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0015] In this invention, through a series of coordinated structural arrangements, when the equipment performs powder spreading operations, the rodless reciprocating cylinder drives the powder spreading plate to move linearly in the X-axis direction. After the powder spreading plate has finished spreading powder into the forming cylinder, its continued movement pushes excess ceramic powder into the return powder trough. When the powder spreading plate moves directly above the center of the transparent plate, the electric push rod is activated, causing the powder spreading plate to move upward a certain distance in the Y-axis direction. When the rodless reciprocating cylinder moves the powder spreading plate to the initial powder spreading position, the electric push rod is activated again, causing the powder spreading plate to move downward in the Y-axis direction to the powder spreading position. As can be seen from the above, when the rodless reciprocating cylinder moves the powder spreading plate to the initial powder spreading position, the powder spreading plate does not come into contact with the powder spreading worktable. Thus, this utility model reduces the number of contact frictions between the powder spreading plate and the powder spreading worktable, extending the service life of the powder spreading plate. Due to the reduced wear of the powder spreading plate, it can maintain good flatness and precision, ensuring the uniformity and stability of each powder spreading. Uniform powder spreading is the key to the quality of ceramic sintering and molding, which can avoid problems such as inconsistent sintering density and part deformation caused by uneven powder spreading, thereby improving the molding precision and yield of ceramic products.

[0016] In this invention, through a series of coordinated structural arrangements, when the powder spreading plate moves directly above the center of the transparent plate, the CCD camera can detect the wear defects of the powder spreading plate. When the CCD camera detects wear defects in the powder spreading plate, the computer controls the audible and visual alarm to sound an alarm, reminding the staff to take maintenance measures in advance. Thus, this equipment can detect wear defects in the powder spreading plate in a timely manner, avoiding production accidents caused by failure to detect wear of the powder spreading plate in time. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model. Figure 2 .

[0020] Figure 3 This is a schematic diagram of the powder spreading mechanism of this utility model. Figure 1 .

[0021] Figure 4 This is a schematic diagram of the powder spreading mechanism of this utility model. Figure 2 .

[0022] Figure 5This is a schematic diagram of the powder spreading component of this utility model.

[0023] Figure 6 This is a schematic diagram of the installation structure between the first lifting component, the second lifting component, the first piston, the second piston, and the mounting bracket of this utility model.

[0024] Figure 7 This is a schematic diagram of the structure of the powder spreading workbench of this utility model. Figure 1 .

[0025] Figure 8 This is a schematic diagram of the structure of the powder spreading workbench of this utility model. Figure 2 .

[0026] In the picture:

[0027] 100. Powder spreading mechanism; 110. Powder spreading worktable; 111. Powder return trough; 112. Transparent plate; 113. Powder supply cylinder; 114. Forming cylinder; 120. Mounting frame; 130. First lifting assembly; 140. Second lifting assembly; 150. CCD camera; 160. First piston; 170. Second piston; 180. Powder spreading assembly; 181. Rodless reciprocating cylinder; 182. U-shaped mounting plate; 183. Powder spreading plate; 184. Electric push rod.

[0028] 200. Rack;

[0029] 300. Laser sintering mechanism;

[0030] 400. Audible and visual alarm;

[0031] 500. Computer. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0034] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0035] like Figure 1-8As shown, a ceramic sintering device with powder spreading function includes a frame 200, a laser sintering mechanism 300 is provided on the top of the frame 200, the laser sintering mechanism 300 performs laser sintering operation on the ceramic powder at the forming cylinder 114, a powder spreading mechanism 100 is provided on the lower inner side of the frame 200, a computer 500 is provided on the upper front end of one side of the outer wall of the frame 200, and an audible and visual alarm 400 is installed on one front end of the top of the frame 200.

[0036] The powder spreading mechanism 100 is equipped with a powder spreading worktable 110. From left to right, the bottom of the powder spreading worktable 110 is provided with a powder supply cylinder 113, a forming cylinder 114, a powder return trough 111, and a transparent plate 112. The powder return trough 111 recovers excess ceramic powder. The powder supply cylinder 113 and the forming cylinder 114 are respectively provided with a first piston 160 and a second piston 170. The first piston 160 and the second piston 170 are respectively installed on the telescopic ends of the first lifting assembly 130 and the second lifting assembly 140. The first lifting assembly 130 and the second lifting assembly 140 are respectively provided on both sides of the mounting frame 120. A CCD camera 150 is provided on one side of the top of the mounting frame 120. The powder spreading assembly 180 is provided on the upper inner side of the powder spreading worktable 110. The first lifting assembly 130 and the second lifting assembly 140 can respectively drive the first piston 160 and the second piston 170 to move in the Y-axis direction.

[0037] The powder spreading assembly 180 is equipped with a rodless reciprocating cylinder 181. An electric push rod 184 is installed at the bottom end of the support plate on the rodless reciprocating cylinder 181. A U-shaped mounting plate 182 is installed at the bottom end of the electric push rod 184. A powder spreading plate 183 is installed in the U-shaped groove at the bottom of the U-shaped mounting plate 182.

[0038] The mounting bracket 120 is located below the powder spreading worktable 110, and both the mounting bracket 120 and the powder spreading worktable 110 are located inside the frame 200.

[0039] The outer wall of the top of the powder spreading plate 183 and the groove wall of the U-shaped groove on the U-shaped mounting plate 182 are in clearance fit, and the powder spreading plate 183 and the U-shaped mounting plate 182 are fixedly connected by fastening bolts. Because the outer wall of the top of the powder spreading plate 183 and the groove wall of the U-shaped groove on the U-shaped mounting plate 182 are in clearance fit, and the powder spreading plate 183 and the U-shaped mounting plate 182 are fixedly connected by fastening bolts, the staff can disassemble and replace the powder spreading plate 183.

[0040] Guide posts are installed at both the front and rear ends of the top of the U-shaped mounting plate 182. The top of the guide post passes through the through hole on the surface of the support plate of the rodless reciprocating cylinder 181. The outer wall of the guide post and the hole wall of the through hole are in clearance fit. Because the outer wall of the guide post and the hole wall of the through hole are in clearance fit, the powder spreading plate 183 can be limited and guided to move in the Y-axis direction.

[0041] The CCD camera 150 is located directly below the transparent plate 112.

[0042] Working Principle: When in use, with the external power supply connected, during powder spreading, the rodless reciprocating cylinder 181 drives the powder spreading plate 183 to move linearly along the X-axis. After the powder spreading plate 183 has spread powder into the forming cylinder 114, its continued movement pushes excess ceramic powder into the return powder trough 111. When the powder spreading plate 183 moves directly above the center of the transparent plate 112, the electric push rod 184 activates, moving the powder spreading plate 183 upward a certain distance along the Y-axis. When the rodless reciprocating cylinder 181 moves the powder spreading plate 183 to the initial powder spreading position, the electric push rod 184 activates again, causing the powder spreading plate 183 to move downward along the Y-axis to the initial powder spreading position. As can be seen, when the rodless reciprocating cylinder 181 moves the powder spreading plate 183 to the initial powder spreading position, the powder spreading plate 183 does not contact or rub against the powder spreading worktable 110. Therefore, this invention reduces the friction between the powder spreading plate 183 and the powder spreading cylinder 110. The reduced contact friction between the powder worktables 110 extends the service life of the powder spreading plate 183. Reduced wear on the powder spreading plate 183 ensures good flatness and precision, guaranteeing uniformity and stability in each powder spreading operation. Uniform powder spreading is crucial for the quality of ceramic sintering, preventing issues such as inconsistent sintering density and part deformation caused by uneven powder spreading, thereby improving the forming accuracy and yield of ceramic products. When the powder spreading plate 183 moves directly above the center of the transparent plate 112, the CCD camera 150 can detect the wear defects of the powder spreading plate 183. When the CCD camera 150 detects wear defects in the powder spreading plate 183, the computer 500 controls the audible and visual alarm 400 to trigger an alarm, reminding staff to take maintenance measures in advance. This allows the equipment to promptly detect wear defects in the powder spreading plate 183, preventing production accidents caused by failure to detect wear in a timely manner.

[0043] The above are merely preferred embodiments of this utility model and are not intended to limit the invention. For those skilled in the art, various modifications and variations can be made to this invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A ceramic sintering apparatus with powder spreading function, comprising a frame (200), characterized in that: A laser sintering mechanism (300) is provided on the top of the frame (200), a powder spreading mechanism (100) is provided on the lower inner side of the frame (200), a computer (500) is provided on the upper front end of one side of the outer wall of the frame (200), and an audible and visual alarm (400) is installed on one side of the top of the frame (200). The powder spreading mechanism (100) is provided with a powder spreading worktable (110). The bottom of the powder spreading worktable (110) is provided with a powder supply cylinder (113), a forming cylinder (114), a powder return trough (111), and a transparent plate (112) from left to right. The powder supply cylinder (113) and the forming cylinder (114) are respectively provided with a first piston (160) and a second piston (170). The first piston (160) and the second piston (170) are respectively installed on the telescopic ends of the first lifting assembly (130) and the second lifting assembly (140). The first lifting assembly (130) and the second lifting assembly (140) are respectively provided on both sides of the mounting frame (120). A CCD camera (150) is provided on one side of the top of the mounting frame (120). The powder spreading assembly (180) is provided on the upper inner side of the powder spreading worktable (110). The powder spreading assembly (180) is provided with a rodless reciprocating cylinder (181), and an electric push rod (184) is installed at the bottom end of the support plate on the rodless reciprocating cylinder (181). A U-shaped mounting plate (182) is installed at the bottom end of the electric push rod (184), and a powder spreading plate (183) is installed in the U-shaped groove at the bottom of the U-shaped mounting plate (182).

2. The ceramic sintering apparatus with powder spreading function according to claim 1, characterized in that: The mounting bracket (120) is located below the powder spreading workbench (110), and both the mounting bracket (120) and the powder spreading workbench (110) are located inside the frame (200).

3. The ceramic sintering apparatus with powder spreading function according to claim 1, characterized in that: The outer wall of the top of the powder spreading plate (183) and the groove wall of the U-shaped groove on the U-shaped mounting plate (182) are in clearance fit, and the powder spreading plate (183) and the U-shaped mounting plate (182) are fixedly connected by fastening bolts.

4. The ceramic sintering apparatus with powder spreading function according to claim 1, characterized in that: Guide posts are installed at both the front and rear ends of the top of the U-shaped mounting plate (182). The top of the guide post passes through the through hole on the surface of the support plate of the rodless reciprocating cylinder (181), and the outer wall of the guide post and the hole wall of the through hole are in clearance fit.

5. The ceramic sintering apparatus with powder spreading function according to claim 1, characterized in that: The CCD camera (150) is located directly below the transparent plate (112).

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