Dental vacuum forming machine based on grating measurement

Abstract

The utility model discloses a dental vacuum forming machine based on grating measurement, which comprises a processing table, an upright post is fixedly arranged on the upper surface of the processing table, a heating element is fixedly arranged at the upper end of the upright post, a fixed cavity is arranged in the processing table, an evacuator is fixedly arranged on the cavity wall of the fixed cavity, and a grating is arranged in the fixed cavity. A plurality of through holes are formed in the cavity wall of the upper end of the fixing cavity in a penetrating mode, a lifting groove is formed in the stand column, and a motor is fixedly installed on the groove wall of the bottom end of the lifting groove. The distance between the diffuse reflection grating and the diaphragm movable frame is controlled through sag parameters, when the heating element heats and softens the diaphragm and sags to the grating detection range, the grating and the diaphragm movable frame are driven to descend synchronously, and the diaphragm movable frame can descend to a model placed on a machining table. And then the evacuator is started to carry out evacuating operation, so that the diaphragm is matched with the model until shaping, and the success rate of equipment manufacturing is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dental vacuum forming machines, in particular to a dental vacuum forming machine based on grating measurement. Background Art

[0002] The existing dental vacuum forming machines in the domestic market are divided into two categories: manual dental vacuum forming machines and automatic dental vacuum forming machines.

[0003] Among them, the manual dental vacuum forming machine requires the operator to put the diaphragm into the movable frame, manually lift the movable frame to the bottom of the heating element, and the operator needs to place the model on the vacuum table. After that, press the heating button, and the operator needs to wait and observe beside the machine. When the diaphragm sags due to the heat, visually observe that the diaphragm sags to the required distance, and then manually lower the movable frame to press the softened diaphragm and the model together. After vacuuming, wait for the diaphragm to cool down and then take it out. The disadvantage of this model is that the operator needs to wait and observe beside the machine, and the manual waiting time is long. In addition, since the sagging speed of the diaphragm when softening is affected by factors such as material properties, material thickness, and ambient temperature, its sagging speed is uncertain. A slight negligence will cause it to sag too much or too little, and the model production will fail.

[0004] Among them, automatic dental vacuum forming machines are divided into two types;

[0005] One type uses a circuit-set countdown to control the rise and fall of a movable frame. The operator places the film inside the movable frame, which is then raised and lowered via a control panel. Once the frame is raised below the heating element, the operator places the model on the vacuum table and presses the heating button. The machine begins heating, and when the film sags due to the heat, it automatically drops after the preset countdown, pressing the softened film and model together. The disadvantage of this type of machine is that it relies solely on a circuit-set countdown to control the fall. Even for the same film type, the degree of softening and sagging can be affected by factors such as thickness and ambient temperature. The movable frame may drop if the film sags beyond the required level, resulting in a failed model.

[0006] The other type has a built-in temperature sensor. The operator needs to place the diaphragm into a movable frame, which is then raised and lowered via the control panel. After the frame rises to below the heating element, the operator needs to place the model on the vacuum table and press the heating button. The machine starts heating. When the diaphragm sags due to the heat, the built-in temperature sensor monitors the diaphragm temperature. When the diaphragm temperature reaches the preset temperature, the movable frame automatically drops, pressing the softened diaphragm and the model together. The disadvantage of this type of machine is that it only measures the diaphragm temperature. The diaphragm temperature and diaphragm sag are not positively correlated. When the diaphragm reaches the same temperature, its sag is affected by factors such as material properties and thickness. The movable frame may fall if the diaphragm sag does not meet the requirements, resulting in model production failure.

[0007] Therefore, it is necessary to propose a dental vacuum forming machine based on grating measurement to solve the above problems. Utility Model Content

[0008] The purpose of the present utility model is to provide a dental vacuum forming machine based on grating measurement to solve the problems raised in the above background technology.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a dental vacuum forming machine based on grating measurement, comprising a processing table, wherein a column is fixedly installed on the upper surface of the processing table, a heating element is fixedly installed on the upper end of the column, and an air evacuator is fixedly installed on the processing table, and a plurality of through holes are opened on the upper surface of the processing table, and the lower ends of the plurality of through holes are connected to the input end of the air evacuator. The column is provided with a lifting slot, and a motor is fixedly installed on the groove wall of the bottom end of the lifting slot, and the output end of the motor is fixedly connected to a threaded rod through a coupling, a threaded sleeve is threadedly connected to the rod wall of the threaded rod, and a mounting block is fixedly sleeved on the outer wall of the threaded sleeve, and a diffuse reflection grating is fixedly installed on the mounting block, and a lifting block is slidably connected in the lifting slot, one end of the lifting block extends to the outside of the column and is fixedly connected to the diaphragm movable frame, and a spring is fixedly connected between the lifting block and the mounting block.

[0010] Preferably, a lifting hole is formed through the lifting block, and the lifting block is slidably connected to the threaded rod through the lifting hole.

[0011] Preferably, the spring is sleeved on the threaded rod, and the upper end of the spring is fixedly connected to the lower surface of the lifting block, and the lower end of the spring is fixedly connected to the upper surface of the mounting block.

[0012] Preferably, the mounting block is slidably connected in the lifting slot, and the outer side wall of the mounting block abuts against the slot wall of the lifting slot.

[0013] Preferably, the lower end of the lifting groove extends into the processing table, and the mounting block and the diffuse reflection grating are slidably connected in the lifting groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are: first, the sag parameters of the diaphragm to be processed are determined according to its characteristics, and the spacing between the diffuse reflection grating and the diaphragm movable frame is controlled by the sag parameters, and then the diffuse reflection grating and the diaphragm movable frame are driven to rise by a motor, and the diaphragm movable frame does not move after rising to the top, and the diffuse reflection grating continues to rise by the compression spring to control the spacing, and then the heating element is started to heat the diaphragm, and when the diaphragm begins to soften after being heated and sags to the grating detection range, the diffuse reflection grating and the diaphragm movable frame are driven to descend, and when the diffuse reflection grating descends to the bottom of the lifting groove, the diaphragm movable frame synchronously descends to the model placed on the processing table, and then the vacuum machine is started to perform vacuuming operation so that the diaphragm and the model fit together until they are finalized, thereby improving the success rate of equipment manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the external structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the utility model in the heating state;

[0017] Figure 3 It is a schematic diagram of the internal structure of the utility model in the molding state.

[0018] In the figure: 1. Processing table; 2. Column; 3. Heating element; 4. Vacuum; 5. Through hole; 6. Lifting slot; 7. Motor; 8. Threaded rod; 9. Threaded sleeve; 10. Mounting block; 11. Diffuse reflection grating; 12. Lifting block; 13. Diaphragm movable frame; 14. Spring; 15. Lifting hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-3The utility model provides a technical scheme: a dental vacuum forming machine based on grating measurement, including processing platform 1, the upper surface fixed mounting of processing platform 1 has stand 2, the upper end fixed mounting of stand 2 has heating element 3, and the fixed mounting of processing platform 1 has evacuation machine 4, the upper surface of processing platform 1 is equipped with a plurality of through -hole 5, and the lower end of a plurality of through -hole 5 is connected with the input end of evacuation machine 4, and the lifting groove 6 is set up on the stand 1, and the bottom end groove wall of lifting groove 6 is fixedly installed with motor 7, and the output of motor 7 is fixedly connected with threaded rod 8 through coupling, and the rod wall of threaded rod 8 is screw -threaded with threaded sleeve 9, and the outside wall of threaded sleeve 9 is fixedly sleeved with mounting block 10, and the fixed installation of mounting block 10 has diffuse reflection grating 11, and the lifting groove 6 is slidably connected with lifting block 12, and one end of lifting block 12 extends to the outside of stand 2 and is fixedly connected with diaphragm movable rack 13, and the common fixed connection of lifting block 12 and mounting block 13 has spring 14.

[0021] Wherein, the lifting hole 15 is set up on the lifting block 12, and the lifting block 12 is slidably connected on the threaded rod 8 through the lifting hole 15, and the lifting block 12 is limited by threaded rod 8 and lifting hole, so that the lifting block 12 can only be vertically lifted.

[0022] Wherein, the spring 14 is sleeved on the threaded rod 8, and the upper end of spring 14 is fixedly connected with the lower surface of lifting block 12, and the lower end of spring 14 is fixedly connected with the upper surface of mounting block 10, and the spring 14 is limited by threaded rod 8, so that the spring 14 will not be offset to the outside and affect use.

[0023] Wherein, the mounting block 10 is slidably connected in the lifting groove 6, and the outside wall of mounting block 10 abuts with the groove wall of lifting groove 6, and the lower end of lifting groove 6 extends to the processing platform 1, and the mounting block 10 and diffuse reflection grating 11 are slidably connected in the lifting groove 6, so that the mounting block 10 and diffuse reflection grating 11 can descend to the bottom of lifting groove 6.

[0024] Specific, use the utility model for the first time, first according to the characteristics of the membrane to be processed determines its sag parameter, and through the sag parameter confirms the interval between diffuse reflection grating 11 and membrane movable frame 13, after starting motor 7 positive rotation, motor 7 will drive threaded rod 8 to rotate, and threaded rod 8 drives mounting block 10 to rise through the cooperation with threaded sleeve 9, and mounting block 10 promotes lifting block 12 to rise through spring 14, and until lifting block 12 and the top of lifting groove 6 abut, at this time lifting block 12 and membrane movable frame 13 can not continue to rise and height is fixed, and diffuse reflection grating 11 continues to rise and controls the interval between membrane movable frame 13, at this time start heating element 3 on the membrane of membrane movable frame 13 heating, and the membrane will begin to soften after heating, and when the membrane softens and sag to diffuse reflection grating 11 detection range, at this time can stop heating and start motor 7 reverse, and motor 7 reverse will drive diffuse reflection grating 11 and lifting block 12, membrane movable frame 13 descend, and mounting block 10 and diffuse reflection grating 11 will descend to the bottom of lifting groove 6, and membrane movable frame 13 will drive the softened membrane to cover the model placed on processing table 1, after starting the air extractor 4 through the hole 5 will be the air in the model, and make the membrane and model conform and until setting, improve the success rate of equipment production.

[0025] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A dental vacuum forming machine based on grating measurement, comprising a processing table (1), characterized in that: A column (2) is fixedly mounted on the upper surface of the processing table (1), a heating element (3) is fixedly mounted on the upper end of the column (2), an air evacuator (4) is fixedly mounted on the processing table (1), a plurality of through holes (5) are provided on the upper surface of the processing table (1), the lower ends of the plurality of through holes (5) are connected to the input end of the air evacuator (4), a lifting groove (6) is provided on the column (1), a motor (7) is fixedly mounted on the bottom end wall of the lifting groove (6), and the output end of the motor (7) is fixedly connected to the output end of the motor (7) through a coupling. A threaded rod (8) is fixedly connected, a threaded sleeve (9) is threadedly connected to the rod wall of the threaded rod (8), a mounting block (10) is fixedly sleeved on the outer wall of the threaded sleeve (9), a diffuse reflection grating (11) is fixedly mounted on the mounting block (10), a lifting block (12) is slidably connected in the lifting groove (6), one end of the lifting block (12) extends to the outside of the column (2) and is fixedly connected to a diaphragm movable frame (13), and a spring (14) is fixedly connected between the lifting block (12) and the mounting block (13).

2. The dental vacuum forming machine based on grating measurement according to claim 1, characterized in that: A lifting hole (15) is formed through the lifting block (12), and the lifting block (12) is slidably connected to the threaded rod (8) through the lifting hole (15).

3. The dental vacuum forming machine based on grating measurement according to claim 1, characterized in that: The spring (14) is sleeved on the threaded rod (8), and the upper end of the spring (14) is fixedly connected to the lower surface of the lifting block (12), and the lower end of the spring (14) is fixedly connected to the upper surface of the mounting block (10).

4. The dental vacuum forming machine based on grating measurement according to claim 1, characterized in that: The mounting block (10) is slidably connected in the lifting groove (6), and the outer side wall of the mounting block (10) abuts against the groove wall of the lifting groove (6).

5. The dental vacuum forming machine based on grating measurement according to claim 1, characterized in that: The lower end of the lifting groove (6) extends into the processing table (1), and the mounting block (10) and the diffuse reflection grating (11) are slidably connected in the lifting groove (6).

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