Automatic feeding and discharging mechanism for 3D printing of dental cast

Abstract

The utility model discloses an automatic feeding and discharging mechanism for dental cast 3D printing, and belongs to the field of dental cast machining equipment. According to the automatic feeding and discharging mechanism, a carrier plate circulating unit is arranged on one side of a rack, a carrier plate comprises a working plate, and a clamping part is arranged on the upper end face of the working plate; a carrier plate taking unit is arranged through a two-dimensional moving unit arranged along a vertical plane, the carrier plate taking unit clamps a carrier plate and moves the carrier plate to a printer for discharging, and meanwhile, the carrier plate with a dental cast is taken out and moved to a scraping unit. According to the device, stable circulation of the carrier plate is achieved through the carrier plate circulation unit, whether the carrier plate is used or not can be clearly distinguished, meanwhile, the carrier plate taking unit is matched with the two-dimensional moving unit to convey the unused carrier plate to the printer, take out the printed dental cast and move the printed dental cast to the scraping unit, and the dental cast is scraped from the position below the carrier plate; and the used carrier plates are discharged through the carrier plate discharging sub-unit, so that accurate and stable circulation of the carrier plates is realized.

Description

Technical Field

[0001] The utility model relates to the field of dental mold processing equipment, in particular to an automatic loading and unloading mechanism for dental mold 3D printing. Background Art

[0002] Traditional orthodontics uses braces, which are divided into wire braces and invisible braces. Currently, the number of people using invisible braces is increasing year by year. The processing method of invisible braces: 3D printing is performed according to the shape of human teeth, and the invisible braces are processed after the dental mold is formed. Currently, the printing of dental molds is carried out in a printer. The loading and unloading of dental molds during the printing process is generally done manually, or a simple conveying mechanism is used for conveying, which is very inefficient.

[0003] In response to the above technical problems, the present application aims to provide automated equipment that can ensure conveying accuracy and efficiency during the conveying process. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an automatic loading and unloading mechanism for 3D printing of dental models.

[0005] The technical solution of the utility model is: an automatic loading and unloading mechanism for 3D printing of dental models, comprising:

[0006] frame,

[0007] A carrier circulation unit is arranged on one side of the frame, the carrier circulation unit comprises a carrier feeding sub-unit and a carrier unloading sub-unit, the carrier comprises a working plate, a clamping portion is arranged on the upper end surface of the working plate, and the lower end surface of the working plate is a working surface;

[0008] A carrier plate picking unit is arranged on the frame through a two-dimensional moving unit arranged along a vertical surface, and the carrier plate picking unit clamps the carrier plate and moves it to the printer for unloading, and at the same time takes out the carrier plate with the dental mold and moves it to the scraping unit;

[0009] The scraper unit includes: a scraper frame fixed to the frame, a scraper through hole is arranged on the scraper frame, the carrier plate is located at the upper end surface of the scraper through hole and the dental mold is located in the scraper through hole, a scraper cylinder is arranged on the scraper frame, a scraper plate is arranged at the end of the telescopic rod of the scraper cylinder, the scraper plate is located in the scraper through hole, and the scraper plate separates the dental mold from the carrier plate under the drive of the scraper cylinder.

[0010] Furthermore, a scraper is fixedly arranged at the upper end of the scraper plate, the blade of the scraper protrudes beyond the scraper plate and the scraper is arranged in cooperation with the lower end surface of the carrier plate, that is, the scraper is used to cut the material before scraping, and after partial cutting, the scraper is used to scrape the material, and the residual material on the lower end surface of the carrier plate is cut at the same time, which is convenient for subsequent secondary use.

[0011] Further, the scraping through-hole is arranged in a "U" shape in the horizontal plane, and the opening direction is consistent with the scraping direction, which is convenient for the blanking of the dental model.

[0012] Further, the scraping through-hole is arranged in a "T" shape in the vertical plane. A scraping knife is arranged inside the upper end, and a scraping plate is arranged inside the lower end. The width of the scraping knife is slightly larger than that of the scraping plate. At the same time, the scraping knife can move horizontally along the upper end of the scraping through-hole, ensuring the stable movement of the scraping knife and also ensuring the stable scraping of the working surface of the carrier plate by the scraping knife.

[0013] Further, a scraping channel is also arranged below the scraping through-hole, and a collection bin is arranged below the scraping channel. That is, the dental model enters the collection bin through the scraping channel. The scraping channel can be set to be inclined, and the collection bin can be set to be drawer-shaped, which is convenient for workers to collect the dental model when it is full or the process is over.

[0014] Further, a rotary clamping cylinder is also arranged on the scraping rack, which can clamp the carrier plate. The rotary clamping cylinder is an existing part, so it will not be elaborated here.

[0015] Further, the material loading sub-unit and the carrier plate blanking sub-unit on the carrier plate are arranged in parallel. They can be arranged horizontally or vertically in parallel. In this application, they are arranged vertically in parallel.

[0016] Further, both the material loading sub-unit and the carrier plate blanking sub-unit on the carrier plate are driven by a synchronous belt, and the synchronous belt is driven by a synchronous motor. At the same time, a photoelectric sensor is arranged at the conveying end of the material loading sub-unit on the carrier plate. When a carrier plate is identified, the synchronous motor stops driving. When it is taken away, the synchronous motor drives for feeding; similarly, a photoelectric sensor is also arranged at the input end of the carrier plate blanking sub-unit.

[0017] Further, the carrier plate material taking unit includes:

[0018] A material taking driving module perpendicular to the vertical plane where the two-dimensional moving unit is located, and the material taking driving module reciprocates along a straight line direction;

[0019] A material taking jaw arranged at the driving end of the material taking driving module, and the material taking jaw clamps the clamping part of the carrier plate.

[0020] Further, at least two groups of the carrier plate material taking units are arranged in parallel, and each group operates independently. Generally, they are arranged in parallel up and down in cooperation with the carrier plate circulation unit.

[0021] Further, the material taking jaw is arranged at the driving end of the material taking driving module through an extension plate, which can ensure the operating length of the material taking jaw and is convenient for taking and placing materials between the carrier plate circulation unit and the printer part.

[0022] Furthermore, the two-dimensional moving unit includes a horizontal moving subunit arranged in the left-right direction, and a vertical moving subunit moving in the vertical direction is arranged at the driving end of the horizontal moving subunit. The horizontal moving subunit and the vertical moving subunit can use any linear drive source such as a linear module, a screw module, a cylinder, an electric cylinder, etc., and the linear module is used in the application.

[0023] Furthermore, at least two groups of printers are arranged on one side of the frame, and the printers are arranged in an up-and-down direction, and print upside down on the carrier plate during printing.

[0024] The beneficial technical effect of the utility model is: in the present application, a stable circulation of the carrier is achieved through the carrier circulation unit, and whether it is a used carrier can be clearly distinguished. At the same time, the carrier picking unit cooperates with the two-dimensional moving unit to transport the unused carrier to the printer, and take out the printed dental mold, and move it to the scraping unit to scrape the dental mold from under the carrier, and unload the used carrier through the carrier unloading sub-unit, thereby achieving accurate and stable circulation of the carrier, and providing stable guarantee for the automated production of dental molds. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall schematic diagram of the automatic loading and unloading mechanism.

[0026] Figure 2 It is a schematic diagram of the position of the automatic loading and unloading mechanism.

[0027] Figure 3 is a schematic diagram of a carrier circulation unit.

[0028] Figure 4 It is a schematic diagram of the carrier picking unit.

[0029] Figure 5 is a schematic diagram of a two-dimensional mobile unit.

[0030] Figure 6 is a schematic diagram of a scraper unit.

[0031] Figure 7 It is a cross-sectional view of the scraper unit.

[0032] Figure 8 It is a scraping schematic diagram of the scraping unit.

[0033] Fig. 9 yes Figure 8 Schematic diagram of the longitudinal section.

[0034] In the figure:

[0035] 1. Rack,

[0036] 2. Carrier circulation unit, 21. Carrier loading sub-unit, 22. Carrier unloading sub-unit, 24. Synchronous belt, 25. Synchronous motor,

[0037] 3. Working plate, 31. Clamping part,

[0038] 4. Two-dimensional moving unit, 41. Horizontal moving subunit, 42. Vertical moving subunit,

[0039] 5. Carrier plate picking unit, 51. Picking drive module, 52. Picking claw, 53. Extension plate,

[0040] 6. Printer,

[0041] 7. Scraping unit, 71. Scraping frame, 72. Scraping through hole, 73. Scraping cylinder, 74. Scraping plate, 75. Scraper, 76. Scraping channel, 77. Collecting bin, 78. Rotating clamping cylinder. DETAILED DESCRIPTION

[0042] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0043] See attached Figure 1-9 In this embodiment, an automatic loading and unloading mechanism for 3D printing of dental models includes:

[0044] A frame 1, a carrier circulation unit 2 is arranged on one side of the frame 1, the carrier circulation unit 2 comprises a carrier feeding subunit 21 and a carrier unloading subunit 22, the carrier comprises a working plate 3, a clamping portion 31 is arranged on the upper end surface of the working plate 3, and the lower end surface of the working plate 3 is a working surface;

[0045] A carrier plate taking unit 5 is arranged on the frame 1 through a two-dimensional moving unit 4 arranged along a vertical surface. The carrier plate taking unit 5 clamps the carrier plate and moves it to the printer 6 for unloading, and at the same time takes out the carrier plate with the dental mold and moves it to the scraping unit 7;

[0046] The scraper unit 7 includes: a scraper frame 71 fixed to the frame 1, a scraper through hole 72 is arranged on the scraper frame 71, a carrier plate is located on the upper end surface of the scraper through hole 72 and the dental mold is located in the scraper through hole 72, a scraper cylinder 73 is arranged on the scraper frame 71, a scraper plate 74 is arranged at the end of the telescopic rod of the scraper cylinder 73, the scraper plate 74 is located in the scraper through hole 72, and the scraper plate 74 is driven by the scraper cylinder 73 to separate the dental mold from the carrier plate.

[0047] For further information, see Appendix Figure 6-9The upper end of the scraping plate 74 is also fixedly provided with a scraping knife 75. The cutting edge of the scraping knife 75 extends beyond the scraping plate 74 and the scraping knife 75 is arranged in cooperation with the lower end surface of the carrier plate. That is, before scraping, cutting is first carried out by the scraping knife 75. After partial cutting, scraping is carried out by the scraping plate, and at the same time, the residual material on the lower end surface of the carrier plate is cut, which is convenient for subsequent secondary use. The scraping through-hole 72 is arranged in a "U" shape in the horizontal plane, and the opening direction is the same as the scraping direction. This is convenient for the blanking of the dental mold. The scraping through-hole 72 is arranged in a "T" shape in the vertical plane. The scraping knife 75 is arranged inside the upper end, and the scraping plate is arranged inside the lower end. The width of the scraping knife 75 is slightly larger than that of the scraping plate. At the same time, the scraping knife 75 can move horizontally along the upper end of the scraping through-hole 72, ensuring the stable movement of the scraping knife 75 and also ensuring the stable scraping of the working surface of the carrier plate by the scraping knife 75. A scraping channel 76 is also arranged below the scraping through-hole 72, and a collection bin 77 is arranged below the scraping channel 76. That is, the dental mold enters the collection bin 77 through the scraping channel 76. The scraping channel 76 can be arranged to be inclined, and the collection bin 77 can be arranged to be drawer-shaped. When it is full or the process ends, it is convenient for workers to collect the dental mold. A rotary clamping cylinder 78 is also arranged on the scraping frame 71. It can clamp the carrier plate. The rotary clamping cylinder 78 is an existing part, so it will not be described in detail.

[0048] Further, referring to the attached Figure 3 , the material loading sub-unit 21 and the material unloading sub-unit 22 on the carrier plate are arranged in parallel. They can be arranged horizontally or vertically in parallel. In this application, they are arranged vertically in parallel. Both the material loading sub-unit 21 and the material unloading sub-unit 22 on the carrier plate are conveyed by a synchronous belt 24, and the synchronous belt 24 is driven by a synchronous motor 25. At the same time, a photoelectric sensor is arranged at the conveying end of the material loading sub-unit 21 on the carrier plate. When a carrier plate is recognized, the synchronous motor 25 stops driving. When it is taken away, the synchronous motor 25 drives for feeding; similarly, a photoelectric sensor is also arranged at the input end of the material unloading sub-unit 22 on the carrier plate.

[0049] Further, referring to the attached Figure 4 , the carrier plate material taking unit 5 includes:

[0050] A material taking driving module 51 perpendicular to the vertical plane where the two-dimensional moving unit 4 is located, and the material taking driving module 51 reciprocates along a straight line direction;

[0051] A material taking jaw 52 arranged at the driving end of the material taking driving module 51, and the material taking jaw 52 clamps the clamping part 31 of the carrier plate. At least two groups of the carrier plate material taking units 5 are arranged in parallel, and each group operates independently. Generally, it is arranged in parallel up and down in cooperation with the carrier plate circulation unit 2. The driving end of the material taking driving module 51 is provided with the material taking jaw 52 through an extension plate 53. It can ensure the operating length of the material taking jaw 52 and is convenient for taking and placing materials between the carrier plate circulation unit 2 and the printer 6.

[0052] Further, referring to the attached Figure 5 The two-dimensional moving unit 4 includes a horizontal moving subunit 41 arranged in the left-right direction, and a vertical moving subunit 42 moving in the vertical direction is arranged at the driving end of the horizontal moving subunit 41. The horizontal moving subunit 41 and the vertical moving subunit 42 can use any linear drive source such as a linear module, a screw module, a cylinder, an electric cylinder, etc., and the linear module is used in the application.

[0053] Furthermore, at least two groups of printers 6 are arranged on one side of the frame 1. The printers 6 are arranged in an up-and-down direction, and print upside down on the carrier plate during printing.

[0054] Basic working principle: The carrier plate picking unit 5 cooperates with the two-dimensional moving unit 4 to transport the unused carrier plate to the printer 6, and takes out the printed dental mold, and moves it to the scraping unit 7 to scrape the dental mold from under the carrier plate, and unload the used carrier plate through the carrier plate unloading sub-unit 22. The carrier plate circulation unit 2 realizes stable circulation of the carrier plate, and can clearly distinguish whether it is a used carrier plate.

[0055] At the same time, the present application can realize accurate and stable circulation of the carrier plate, providing stable guarantee for the automated production of dental models.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. An automatic loading and unloading mechanism for 3D printing of dental models, characterized in that: Comprising: a frame (1), a carrier plate circulation unit (2) is arranged on one side of the frame (1), the carrier plate circulation unit (2) includes a carrier plate loading sub-unit (21) and a carrier plate unloading sub-unit (22), the carrier plate includes a working plate (3), a clamping part (31) is arranged on the upper end surface of the working plate (3), and the lower end surface of the working plate (3) is the working surface; a carrier plate picking unit (5) is arranged on the frame (1) through a two-dimensional moving unit (4) arranged along the vertical plane, the carrier plate picking unit (5) picks up the carrier plate and moves it to the printer (6) for discharging, and at the same time takes out the carrier plate with the dental model and moves it to the scraping unit (7); and the scraping unit (7) includes: a scraping frame (71) fixed to the frame (1), a scraping through hole (72) is arranged on the scraping frame (71), the carrier plate is located on the upper end surface of the scraping through hole (72) and the dental model is located in the scraping through hole (72), a scraping cylinder (73) is arranged on the scraping frame (71), a scraping plate (74) is arranged at the end of the telescopic rod of the scraping cylinder (73), the scraping plate (74) is located in the scraping through hole (72), and the scraping plate (74) separates the dental model from the carrier plate under the drive of the scraping cylinder (73).

2. The automatic loading and unloading mechanism for dental model 3D printing according to claim 1, characterized in that: A scraper (75) is also fixedly arranged at the upper end of the scraping plate (74), the cutting edge of the scraper (75) extends beyond the scraping plate (74) and the scraper (75) is arranged in cooperation with the lower end surface of the carrier plate.

3. The automatic loading and unloading mechanism for dental model 3D printing according to claim 1, characterized in that: The scraping through hole (72) is arranged in a "U" shape in the horizontal plane, and the opening direction is consistent with the scraping direction.

4. The automatic loading and unloading mechanism for dental model 3D printing according to claim 1, characterized in that: The scraping through hole (72) is arranged in a "T" shape in the vertical plane, a scraper (75) is arranged inside the upper end of the scraping through hole (72), and a scraping plate is arranged inside the lower end of the scraping through hole (72).

5. The automatic loading and unloading mechanism for dental model 3D printing according to claim 1, characterized in that: A scraping channel (76) is also arranged below the scraping through hole (72), and a collection bin (77) is arranged below the scraping channel (76).

6. The automatic loading and unloading mechanism for dental model 3D printing according to claim 1, characterized in that: The carrier plate loading sub-unit (21) and the carrier plate unloading sub-unit (22) are arranged in parallel, both the carrier plate loading sub-unit (21) and the carrier plate unloading sub-unit (22) are conveyed by a synchronous belt (24), and the synchronous belt (24) is driven by a synchronous motor (25).

7. The automatic loading and unloading mechanism for dental model 3D printing according to claim 1, characterized in that: The carrier plate picking unit (5) includes: a picking driving module (51) perpendicular to the vertical plane where the two-dimensional moving unit (4) is located, the picking driving module (51) reciprocates along a straight line direction; and a picking jaw (52) arranged at the driving end of the picking driving module (51), the picking jaw (52) clamps the clamping part (31) of the carrier plate.

8. The automatic loading and unloading mechanism for dental model 3D printing according to claim 7, characterized in that: The picking jaw (52) is arranged at the driving end of the picking driving module (51) through an extension plate (53).

9. The automatic loading and unloading mechanism for dental model 3D printing according to claim 1, characterized in that: The two-dimensional moving unit (4) includes a horizontal moving sub-unit (41) arranged along the left-right direction, and a vertical moving sub-unit (42) moving along the vertical direction is arranged at the driving end of the horizontal moving sub-unit (41).

10. The automatic loading and unloading mechanism for dental model 3D printing according to claim 1, characterized in that: At least two groups of printers (6) are arranged on one side of the frame (1).

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