Powder transfer equipment for denture raw material production and denture raw material feeding method

Abstract

The application discloses a kind of powder transfer equipment and false tooth raw material loading method for false tooth raw material production, it includes mechanical arm, guide component and sweep material component;Mechanical arm is detachably installed with container, can be active between weighing equipment and pressing equipment, to pour the false tooth raw material in container into the forming groove of pressing equipment;Guide component is set to the groove mouth side of forming groove, is equipped with multiple guide plate that can be active between horizontal position and inclined position;Sweep material component includes the sweep material block that can be active on the surface of forming groove;The container loaded with false tooth raw material is taken out from weighing equipment by mechanical arm, then the powder-shaped false tooth raw material in container is poured into forming groove by mechanical arm, during multiple guide plate is located in inclined position, play the guiding effect to false tooth raw material;Powder on the edge of groove mouth is swept into forming groove by sweep material block;Therefore, the present application utilizes natural dumping plus guiding form, cooperate sweep material component, can improve stability and weighing accuracy.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of transportation transfer device structure, and particularly relates to a powder transfer equipment for denture raw material production and a denture raw material feeding method. BACKGROUND

[0002] With the development of automation technology, many products have realized the industrial transformation from manual to semi-automatic or fully automatic. Taking zirconia denture as an example, it involves multiple processes such as powder preparation, powder pressing forming, pre-sintering, CNC machining, high-temperature sintering and surface treatment. Traditional manual production is time-consuming and labor-intensive. Therefore, the automatic production line of zirconia denture has gradually become the mainstream. For the automatic production line of zirconia denture, a raw material preparation device, a pressing forming device, a sintering device, a CNC machining device and a surface treatment device are respectively arranged for the above-mentioned multiple processes. The workpieces need to be transferred between the devices through a mechanical hand or a transportation line.

[0003] In order to ensure the machining precision of zirconia denture, in the powder pressing forming process, it is necessary to ensure that the weight of the base block (zirconia block) obtained by pressing each time is within a predetermined range, which is a prerequisite for the normal implementation of the subsequent process. In short, how to accurately transfer a certain amount of powder from the raw material preparation device to the pressing forming device is a technical problem that needs to be focused on in the automatic production line.

[0004] Referring to the powder transfer device in the prior art, a spiral feeding mechanism is generally used. This structure uses a motor to drive a spiral blade to transfer powder between two devices. However, due to the small particle size and high density of zirconia powder, the flowability in the spiral feeding mechanism is poor, which is easy to block and has poor stability. At the same time, when the spiral feeding mechanism discharges the powder, under the thrust of the blade, the fine powder is easy to appear "dust raising" phenomenon during discharge, which reduces the weighing accuracy of the powder. Therefore, the current powder transfer device has the defects of poor stability and insufficient accuracy when applied to the transfer scene of zirconia powder and other denture raw materials. SUMMARY

[0005] The present application aims to provide a powder transfer equipment for denture raw material production and a denture raw material feeding method, which solves the technical problem of poor stability and insufficient accuracy of the powder transfer device in the prior art when applied to denture raw materials.

[0006] To achieve this purpose, the present application adopts the following technical solutions:

[0007] A powder transfer equipment for denture raw material production, comprising:

[0008] A mechanical arm, which is detachably installed with a container and is movable between a weighing device and a pressing device to pour the denture raw material in the container into a forming groove of the pressing device;

[0009] a guide assembly arranged around the opening of the forming groove, comprising a plurality of guide plates movable between a horizontal position and an inclined position; the guide plates in the horizontal position are flush with the opening edge of the forming groove, and the guide plates in the inclined position are arranged obliquely relative to the opening of the forming groove;

[0010] a sweeping assembly comprising a sweeping block movable on the surface of the forming groove;

[0011] When the denture raw material is poured into the forming groove, the plurality of guide plates are in the inclined position; after the denture raw material is poured into the forming groove, at least one guide plate is in the horizontal position, so that the sweeping block sweeps the powder into the forming groove.

[0012] Optionally, the opening edge of the forming groove is provided with a relief groove corresponding to the position of the guide plate;

[0013] The side plates are slidably connected to the guide plates along the width direction of the guide plates; when the guide plates are in the horizontal position, the side plates do not exceed the guide plates along the width direction and are stacked between the guide plates and the bottom wall of the relief groove; when the guide plates are in the inclined position, the side plates at least partially exceed the guide plates along the width direction.

[0014] Optionally, each of the two ends of the guide plate along the width direction is slidably connected with a side plate, and a first gear is rotatably connected to the guide plate between the two side plates;

[0015] The two side plates are provided with a rack portion, the rack portion of one side plate is engaged with one end of the first gear, and the rack portion of the other side plate is engaged with the other end of the first gear.

[0016] Optionally, the guide assembly comprises a first winding wheel coaxially arranged with the first gear, a second winding wheel installed in the relief groove, and a connecting line, one end of the connecting line is fixedly connected to the first winding wheel, and the other end of the connecting line is fixedly connected to the second winding wheel;

[0017] The guide assembly further comprises a reset shaft, a reset elastic member, and a driving portion, the reset shaft is rotatably connected to the first winding wheel, the first gear, and the guide plate in sequence, one end of the reset elastic member is fixedly connected to the guide plate, and the other end of the reset elastic member is fixedly connected to the reset shaft, so that the reset shaft has a tendency to unfold the side plates from the guide plate; the driving portion is used to drive the second winding wheel to rotate.

[0018] Optionally, the driving part comprises a driving motor and a second gear and a third gear arranged in the avoiding slot and engaged with each other; the second gear is coaxial with the second winding wheel and fixedly connected; the driving motor is installed below the avoiding slot and drivingly connected with the third gear.

[0019] Optionally, the third gear is embedded with a first magnetic block and a second magnetic block distributed around the axis of the third gear, the first magnetic block and the second magnetic block are opposite in polarity; the guide plate is provided with a third magnetic block and a fourth magnetic block corresponding to the first magnetic block and the second magnetic block respectively.

[0020] The avoiding slot is also provided with a cylinder unit, one end of the cylinder unit is rotationally connected with the bottom wall of the avoiding slot, and the other end of the cylinder unit is rotationally connected with the guide plate.

[0021] Optionally, the guide plate is protrudingly provided with first guide blocks arranged oppositely, the opposite sides of the two first guide blocks are formed with first guide grooves, and the rack part is correspondingly and slidingly connected with the first guide grooves.

[0022] Both the side plates are extended with guide rods, the guide plate is also protrudingly provided with second guide blocks arranged oppositely, the opposite sides of the two second guide blocks are formed with second guide grooves, and the guide rods are correspondingly and slidingly connected with the second guide grooves.

[0023] Optionally, the material sweeping assembly comprises a moving part and a rotating part, the rotating part is installed on the moving end of the moving part, and the material sweeping block is installed on the rotating end of the rotating part.

[0024] Optionally, the rotating end is installed with a first lifting unit and a second lifting unit, the material sweeping block comprises a first material sweeping part installed on the first lifting unit and a second material sweeping part installed on the second lifting unit.

[0025] The projection of the first material sweeping surface of the first material sweeping part on the pressing equipment is in a straight line shape, the projection of the second material sweeping surface of the second material sweeping part on the pressing equipment is in an arc shape, and the first material sweeping surface and the second material sweeping surface form a closed figure.

[0026] A false tooth raw material feeding method is applied to the false tooth raw material production powder transfer equipment, comprising:

[0027] A predetermined weight of false tooth raw material is weighed and transferred to above the forming groove;

[0028] After the guide plates are located at the inclined position, the false tooth raw material is poured into the forming groove;

[0029] The guide plates are sequentially used for sweeping the material, and the sweeping process of the guide plates includes: placing the sweeping guide plate in a horizontal position, placing other guide plates in an inclined position, and sweeping the denture raw material in the area where the sweeping guide plate is located into the forming groove;

[0030] Placing each guide plate in a horizontal position, and sweeping the denture raw material into the forming groove according to a predetermined trajectory.

[0031] Compared with the prior art, the present application has the following beneficial effects:

[0032] The powder transfer equipment for denture raw material production and the denture raw material feeding method provided by the present application can effectively guide the denture raw material into the forming groove and reduce spilling by placing multiple guide plates in an inclined position to guide the denture raw material when the denture raw material is poured into the forming groove. After the pouring is completed, the powder on the edge of the slot is swept into the forming groove by the sweeping block, and the guide plates on the corresponding path enter the horizontal position. Thus, the denture raw material can be prevented from being blocked by using natural pouring and guidance, thereby ensuring stability, and the transfer ratio of the denture raw material from the container to the forming groove is improved by cooperating with the sweeping assembly, thereby improving the weighing accuracy. Therefore, the powder transfer equipment for denture raw material production and the denture raw material feeding method have the advantages of high stability and high weighing accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0034] The structures, proportions, sizes, etc. shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, to enable those skilled in the art to understand and read, and are not used to limit the limiting conditions under which the present application can be implemented, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that the present application can produce, should still fall within the scope of the technical content disclosed by the present application.

[0035] Figure 1 The overall structure schematic diagram of the powder transfer equipment for denture raw material production provided by the embodiments of the present application;

[0036] Figure 2 The top view structure schematic diagram of the powder transfer equipment for denture raw material production provided by the embodiments of the present application;

[0037] Figure 3 A first state structural schematic view of a powder transfer device for production of a denture raw material provided by an embodiment of the present application is shown in the figure;

[0038] Figure 4 A second state structural schematic view of a powder transfer device for production of a denture raw material provided by an embodiment of the present application is shown in the figure;

[0039] Figure 5 A partial enlarged structural schematic view at A is shown in the figure; Figure 3

[0040] Figure 6 A whole structural schematic view of a material sweeping assembly in an embodiment of the present application is shown in the figure;

[0041] Figure 7 A top view structural schematic view of a material sweeping assembly in an embodiment of the present application is shown in the figure.

[0042] Illustration: 100, a mechanical arm;

[0043] 200, a weighing device; 300, a pressing device; 301, a forming groove; 302, an avoiding groove;

[0044] 400, a guiding assembly; 401, a horizontal position; 402, an inclined position; 410, a guiding plate; 411, a first guide block; 412, a second guide block; 413, a first guide groove; 414, a second guide groove; 420, a side plate; 421, a rack part; 422, a guide rod; 430, a first gear; 440, a first winding wheel; 450, a second winding wheel; 461, a second gear; 462, a third gear; 471, a first magnetic block; 472, a second magnetic block; 480, a cylinder unit;

[0045] 500, a material sweeping assembly; 510, a material sweeping block; 511, a first material sweeping part; 512, a second material sweeping part; 513, a first material sweeping surface; 514, a second material sweeping surface; 520, a moving part; 521, a first linear module; 522, a second linear module; 530, a rotating part. DETAILED DESCRIPTION

[0046] In order to make the inventive purposes, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0047] ​In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be a component disposed therebetween.

[0048] The technical solutions of the present application will be further described below in conjunction with the drawings and through specific embodiments.

[0049] Embodiment one:

[0050] The present embodiment provides a powder transfer device suitable for the scene of transferring powder raw materials, aiming to transfer the raw materials with high stability and high precision, especially suitable for denture production and processing, which can prevent the zirconia powder (denture raw material) from being blocked during the transfer process, and can also guarantee the transfer precision of the zirconia powder (denture raw material), and the above structure additionally occupies less space, has the advantage of compact structure.

[0051] In this embodiment, as shown in Figures 1 to 5 , zirconia powder is taken as the transfer object, and a powder transfer device for denture raw material production is introduced.

[0052] As shown in Figures 1 to 5As shown, the powder transfer device for denture raw material production in the embodiment includes a mechanical arm 100, a guide assembly 400, and a sweeping assembly 500; the mechanical arm 100 is detachably installed with a container (not shown in the figure), and can move between the weighing device 200 and the pressing device 300 to pour the denture raw material in the container into the forming groove 301 of the pressing device 300; wherein the mechanical arm 100 is a five-axis manipulator, a six-axis manipulator, or the like, the specific structure of which is known to those skilled in the art, and is not specifically expanded in the embodiment, but can transfer the container from the weighing device 200 to the pressing device 300; the container is selected to be an open cup-shaped part, and can also be selected to be an open bowl-shaped part, and the specific shape is not limited, but can be used to hold the denture raw material (zirconia powder). The weighing device 200 is a material distribution sensor provided with a weight sensor, which has a mounting position for placing the container, and the container can be placed in the mounting position to realize accurate weighing by using the weight sensor, and then the weighing device 200 is also provided with a material bin and a vibrating material distribution structure, which uses the vibration principle to accurately drop the denture raw material into the container, thereby realizing accurate weighing of the denture raw material in the container. It can be understood that the weighing device 200 can also use other structures such as pneumatic material distribution, which can accurately place the denture raw material into the container. The pressing device 300 is a compression device provided with a cylinder or a liquid cylinder, which has a pressure head driven by the cylinder or the liquid cylinder, and after the denture raw material in the container is poured into the forming groove 301, the pressure head is driven to descend, which can press the powdered denture raw material to form a block-shaped denture base (zirconia block), which is convenient for subsequent sintering, CNC machining, surface treatment, and the like.

[0053] Next, the guide assembly 400 and the sweeping assembly 500 of the powder transfer device for denture raw material production in the embodiment will be introduced:

[0054] The guide assembly 400 is arranged on the side of the slot opening of the forming groove 301, and is provided with a plurality of guide plates 410 that can move between a horizontal position 401 and an inclined position 402; as shown, Figure 3 The guide plate 410 at the horizontal position 401 is flush with the edge of the slot opening of the forming groove 301, as shown, Figure 2 The guide plate 410 at the inclined position 402 is arranged inclinedly relative to the slot opening of the forming groove 301; it can be understood that the guide plate 410 at the inclined position 402 is arranged inclinedly relative to the slot opening of the forming groove 301, and the higher end of the guide plate 410 is arranged inclinedly away from the slot opening of the forming groove 301, which can reduce the risk of powder spilling when the denture raw material is poured into the forming groove 301, and even if the denture raw material is partially poured on the guide plate 410, the guide plate 410 can also guide the part of the denture raw material into the forming groove 301.

[0055] The sweeping assembly 500 comprises a sweeping block 510 capable of moving on the surface of the forming groove 301; when the denture raw material is poured into the forming groove 301, the plurality of guide plates 410 are located at the inclined position 402; after the denture raw material is poured into the forming groove 301, at least one guide plate 410 is located at the horizontal position 401, so that the sweeping block 510 sweeps the powder into the forming groove 301. It can be understood that after the container completely pours out the denture raw material, the guide plate 410 is located at the horizontal position 401, at this time, the guide plate 410 is flush with the groove edge of the forming groove 301, and the whole is smooth and planar, at this time, the denture raw material on the plane can be swept into the forming groove 301 by the sweeping block 510, so as to improve the transfer ratio of the denture raw material, as close to 1:1 as possible, thereby improving the accuracy of the denture base (zirconia block) and the utilization rate of the denture raw material.

[0056] In summary, in the powder transfer device for denture raw material production in the embodiment, when the denture raw material is placed in the forming groove 301, the mechanical arm 100 is used to take out the container containing the denture raw material from the weighing device 200, and then the mechanical arm 100 is used to pour the powder-shaped denture raw material in the container into the forming groove 301, during which the plurality of guide plates 410 are located at the inclined position, thereby guiding the denture raw material into the forming groove 301 and reducing spatter; after the pouring is completed, the sweeping block 510 sweeps the powder on the groove edge into the forming groove 301, and the guide plate 410 on the corresponding path enters the horizontal position 401; thus, by using the natural pouring and guiding form, the blocking of the denture raw material in the closed device can be prevented, so as to ensure the stability, and the transfer ratio of the denture raw material from the container to the forming groove 301 is improved, and the weighing accuracy is improved. Therefore, the powder transfer device for denture raw material production has the advantages of high stability and high weighing accuracy.

[0057] Further, the groove edge of the forming groove 301 is provided with a avoiding groove 302, the avoiding groove 302 is used for placing the guide plate 410 at the horizontal position, so that the guide plate 410 is flush with the groove edge of the forming groove 301; the side plate 420 is slidably connected to the guide plate 410 along the width direction of the guide plate 410; when the guide plate 410 is located at the horizontal position 401, the side plate 420 does not exceed the guide plate 410 along the width direction and is stacked between the guide plate 410 and the groove bottom wall of the avoiding groove 302; when the guide plate 410 is located at the inclined position 402, the side plate 420 at least partially exceeds the guide plate 410 along the width direction. It can be understood that the side plate 420 is added to the guide plate 410, so that the flexibility of the guide assembly 400 is higher, which is embodied in that the avoiding groove 302 needs to be smaller, but a larger guiding area can be provided, thereby improving the powder guiding effect and optimizing the use of space.

[0058] Further, the two ends of the guide plate 410 along the width direction thereof are each slidingly connected with a side plate 420, and between the two side plates 420, the guide plate 410 is further rotationally connected with a first gear 430; the two side plates 420 each extend with a rack portion 421, the rack portion 421 of one side plate 420 meshes with one end of the first gear 430, and the rack portion 421 of the other side plate 420 meshes with the other end of the first gear 430. It can be understood that the synchronous movement of the two side plates 420 can be realized by introducing the first gear 430 and the two rack portions 421, which ensures that the two side plates 420 always maintain the same height and position, further improves the guiding property of the denture raw material, and at the same time, the position of the two side plates 420 can be adjusted simultaneously by controlling only one side plate 420 or the first gear 430, thereby improving the controllability.

[0059] Further, the guide assembly 400 comprises a first winding wheel 440 coaxially arranged with the first gear 430, a second winding wheel 450 mounted in the avoiding groove 302, and a connecting line, one end of the connecting line is fixedly connected to the first winding wheel 440, and the other end of the connecting line is fixedly connected to the second winding wheel 450; the guide assembly 400 further comprises a reset shaft, a reset elastic member, and a driving portion, the reset shaft is sequentially arranged through the first winding wheel 440 and the first gear 430 and rotationally connected with the guide plate 410, one end of the reset elastic member is fixedly connected with the guide plate 410, and the other end of the reset elastic member is fixedly connected with the reset shaft, so that the reset shaft has a tendency to deploy the side plate 420 from the guide plate 410; the driving portion is used to drive the second winding wheel 450 to rotate.

[0060] As a specific embodiment, the connecting line can be selected from a nylon rope, a steel wire composite rope, and the like elastic wire; the reset elastic member can be selected from a coil spring or a torsion spring; and the driving portion can be selected from a motor with a transmission structure. It can be understood that the above-mentioned embodiment is a technical solution without manual opening and closing of the side plate 420 by the staff, and the deployment principle is as follows:

[0061] When the driving portion does not drive the second winding wheel 450 to rotate to recover the connecting line, the main body of the connecting line should be wound on the first winding wheel 440, and the other part of the connecting line extends to the second winding wheel 450 and is not wound on the second winding wheel 450, at this time, the reset elastic member is not stretched, and it is defined that the reset elastic member and the first gear 430 are in an initial state, in which the side plate 420 is at least partially located outside the guide plate 410, i.e., the guide plate 410 is in an inclined position 402 and is in a fully deployed state.

[0062] When the side plate 420 needs to be recovered to the guide plate 410, the recovery principle is as follows:

[0063] The second winding wheel 450 is driven to rotate by the driving part to recover the connecting line, at this time, the main body of the connecting line is recovered and wound on the second winding wheel 450 by the rotation of the second winding wheel 450, and the other part of the connecting line extends to the first winding wheel 440, in the process of the connecting line being released from the first winding wheel 440, the first winding wheel 440 is driven to rotate under the action of friction to overcome the elastic force of the reset elastic member, thereby driving the first gear 430 to rotate through the connection of the reset shaft, and the first gear 430 after rotation is in a termination state, in which the side plate 420 is completely overlapped with the guide plate 410, that is, in a completely stored state. Conversely, when the second winding wheel 450 is driven in reverse by the driving part, the connecting line is released to drive the first winding wheel 440 to reset, thereby realizing the state change of the side plate 420 from the completely stored state to the completely unfolded state.

[0064] It should be noted that by the above arrangement, the movement of the guide plate 410 is controlled from the avoidance groove 302 without directly contacting the guide assembly 400, improving the convenience and safety of operation, and making the above structure more compact.

[0065] Further, the driving part includes a driving motor and a second gear 461 and a third gear 462 arranged in the avoidance groove 302 and meshing with each other; the second gear 461 is coaxial with the second winding wheel 450 and fixedly connected; the driving motor is installed below the avoidance groove 302 and drivingly connected with the third gear 462. The transmission ratio between the second gear 461 and the third gear 462 can realize the stroke ratio adjustment between the driving motor and the first winding wheel 440.

[0066] On the basis of the above embodiment, the third gear 462 is embedded with a first magnetic block 471 and a second magnetic block 472 distributed around the axis of the third gear 462, the first magnetic block 471 and the second magnetic block 472 are opposite in polarity; the guide plate 410 is provided with a third magnetic block and a fourth magnetic block opposite in polarity corresponding to the first magnetic block 471 and the second magnetic block 472, that is, the third magnetic block is magnetically attracted to the first magnetic block 471, the fourth magnetic block is magnetically attracted to the second magnetic block 472, the third magnetic block is magnetically repelled from the second magnetic block 472, and the fourth magnetic block is magnetically repelled from the first magnetic block 471; a cylinder unit 480 is also installed in the avoidance groove 302, one end of the cylinder unit 480 is rotatably connected with the groove bottom wall of the avoidance groove 302, and the other end of the cylinder unit 480 is rotatably connected with the guide plate 410. By arranging the above magnetic blocks, when the guide plate 410 is located at the horizontal position 401, the third magnetic block and the first magnetic block 471 are oppositely arranged and magnetically attracted to each other, and the fourth magnetic block and the second magnetic block 472 are oppositely arranged and magnetically attracted to each other.

[0067] For the convenience of those skilled in the art, the action process of the guide plate 410 between the horizontal position 401 and the inclined position 402 is explained:

[0068] In the process from the inclined position 402 to the horizontal position 401: first, drive the third gear 462 counterclockwise by the driving motor, drive the second winding wheel 450 to rotate through the meshing with the second gear 461. The second winding wheel 450 starts to accommodate the connecting line, and pulls the first winding wheel 440 to rotate. The first winding wheel 440 drives the first gear 430 to rotate, overcomes the elastic force of the reset elastic member (such as a torsional spring), and synchronously retracts the side plates 420 on both sides through the meshing of the rack part 421 and the first gear 430, so as to realize the recovery of the side plates 420;

[0069] Then, continue to drive the third gear 462 counterclockwise by the driving motor. Since the side plates 420 have been completely accommodated, the first gear 430 cannot continue to rotate. At this time, the third gear 462 continues to rotate counterclockwise, moves the guide plate 410 downward through the pulling force of the connecting line, overcomes the elastic force of the air cylinder unit 480, and makes the air cylinder unit 480 contract, so as to gradually approach the horizontal position 401.

[0070] In the last half circle of driving the third gear 462 counterclockwise by the driving motor, the third magnetic block is arranged opposite to the first magnetic block 471, and the fourth magnetic block is arranged opposite to the second magnetic block 472. Under the action of magnetic attraction force and the pulling force provided by the driving motor, the guide plate 410 is locked in the avoiding groove 302 by overcoming the air cylinder unit 480;

[0071] From the horizontal position 401 to the inclined position 402: first, drive the third gear 462 clockwise by the driving motor for half a circle, so that the third magnetic block is arranged opposite to the second magnetic block 472 and repels each other, and the fourth magnetic block is arranged opposite to the first magnetic block 471 and repels each other. Since the polarities are opposite, a magnetic repulsion force is generated, which assists the air cylinder unit 480 to open upward and starts to move to the inclined position 402, and completes the unlocking;

[0072] Then, under the action of the air cylinder unit 480, the guide plate 410 gradually rises to the inclined position 402; at the same time, the third gear 462 continues to rotate, the connecting line is released, and the first winding wheel 440 starts to rotate reversely under the action of the reset elastic member (such as a torsional spring), so as to synchronously expand the side plates 420 on both sides through the meshing with the rack part 421.

[0073] Finally, after the side plates 420 are completely expanded, the guide plate 410 is fixed at the inclined position 402, and the whole system returns to the initial state, ready for the next operation.

[0074] The above design ingeniously combines mechanical transmission, magnetic force and pneumatic control, realizes the precise positioning of the guide plate 410 and the synchronous opening and closing of the side plates 420, improves the precision and efficiency of the transfer of denture raw materials, and occupies small space.

[0075] On the basis of the above-mentioned embodiments, as shown in Figures 3 to 5 The guide plate 410 is provided with first guide blocks 411 arranged opposite to each other, and the side of the two first guide blocks 411 opposite to each other is formed with a first guide groove 413, and the rack portion 421 is correspondingly connected with the first guide groove 413 in sliding connection; the two side plates 420 are each extended with a guide rod 422, and the guide plate 410 is further provided with second guide blocks 412 arranged opposite to each other, and the side of the two second guide blocks 412 opposite to each other is formed with a second guide groove 414, and the guide rod 422 is correspondingly connected with the second guide groove 414 in sliding connection.

[0076] On the basis of the above-mentioned embodiments, the material sweeping assembly 500 comprises a moving portion 520 and a rotating portion 530, the rotating portion 530 is installed on the moving end of the moving portion 520, and the material sweeping block 510 is installed on the rotating end of the rotating portion 530. The moving portion 520 at least comprises a first linear module 521 and a second linear module 522, so as to realize the free movement of the rotating portion 530 on the plane, and the rotating portion 530 can realize the free rotation of the material sweeping block 510 through the cooperation of a rotating motor and a transmission structure, which comprises but is not limited to a gear transmission and a synchronous wheel transmission.

[0077] On the basis of the above-mentioned embodiments, as shown in Figure 6 and Figure 7 The rotating end is provided with a first lifting unit and a second lifting unit (both are air cylinders in this embodiment), and the material sweeping block 510 comprises a first material sweeping portion 511 installed on the first lifting unit and a second material sweeping portion 512 installed on the second lifting unit; the projection of the first material sweeping surface 513 of the first material sweeping portion 511 on the pressing equipment 300 is in a straight line shape, the projection of the second material sweeping surface 514 of the second material sweeping portion 512 on the pressing equipment 300 is in an arc shape, and the first material sweeping surface 513 and the second material sweeping surface 514 form a closed figure. Through the above-mentioned arrangement, the function of mechanical interlocking can be realized, and the cleaning effect is improved.

[0078] Embodiment two:

[0079] The embodiment also provides a denture raw material feeding method applied to the powder transfer equipment for producing denture raw materials in the embodiment two, and comprising the following steps.

[0080] S1, weighing a predetermined weight of denture raw material, and transferring to above the forming groove 301;

[0081] S2, after each guide plate 410 is located at the inclined position 402, the denture raw material is poured into the forming groove 301;

[0082] S3, the guide plates 410 are sequentially swept, and the sweeping process of the guide plates 410 includes: the sweeping guide plate 410 is located at the horizontal position 401, the other guide plates 410 are located at the inclined position 402, and the denture raw material in the area where the sweeping guide plate 410 is located is swept into the forming groove 301;

[0083] S4, each guide plate 410 is located at the horizontal position, and the denture raw material is swept into the forming groove 301 according to a predetermined trajectory, wherein the predetermined trajectory is a planned cleaning path, which can sweep the powder on the edge of the forming groove 301 into the forming groove 301, and the specific path is not limited.

[0084] In the above-mentioned denture raw material loading method, first, in step S3, the area where a certain guide plate 410 is located is preliminarily swept, at this time, the arc-shaped second sweeping part 512 can be used to collect and sweep the denture raw material, and the remaining guide plates 410 located at the inclined position 402 act as baffles; for example, when the first guide plate 410 is swept, the second to fourth guide plates 410 are located at the inclined position 402, when the second guide plate 410 is swept, the first, third and fourth guide plates 410 are located at the inclined position 402, and so on; then, in step S4, each guide plate 410 is located at the horizontal position, and then the straight-line-shaped first sweeping part 511 is used for final sweeping. Obviously, first, the arc-shaped sweeping part is used for partition sweeping, most of the denture raw material is swept into the forming groove 301, and then the straight-line-shaped sweeping part is used for whole-area sweeping, the remaining denture raw material is swept into the forming groove 301, which helps to improve the sweeping efficiency and the transfer accuracy of the denture raw material, that is, to improve the transfer ratio of the denture raw material as close to 1:1 as possible.

[0085] The above-described and above-mentioned embodiments are only used to illustrate the technical solutions of the present application, but not limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A powder transfer apparatus for denture base material production, characterized by, The utility model relates to a kind of automatic denture material pouring device, including: Mechanical arm (100), the mechanical arm (100) is detachably mounted with container, can be between weighing equipment (200) and pressing equipment (300) active, to pour the false tooth raw material in container into the forming groove (301) of pressing equipment (300); Guide assembly (400), the guide assembly (400) is set to the groove mouth side of the forming groove (301), is equipped with multiple guide plates (410) that can be active between horizontal position (401) and inclined position (402);The guide plate (410) located at the horizontal position (401) is flush with the groove mouth edge of the forming groove (301), the guide plate (410) located at the inclined position (402) is inclinedly arranged relative to the groove mouth of the forming groove (301);The groove mouth edge of the forming groove (301) is opened with the position of corresponding guide plate (410) and is set with the avoidance groove (302);The guide plate (410) is slidably connected with a side plate (420) on both ends of its width direction respectively between the two side plates (420);First gear (430) is rotatably connected on the guide plate (410);The guide assembly (400) includes coaxially arranged first winding wheel (440) with the first gear (430), second winding wheel (450) installed in the avoidance groove (302), connecting line and driving part, one end of the connecting line is fixedly connected to the first winding wheel (440), the other end of the connecting line is fixedly connected to the second winding wheel (450);The driving part includes driving motor and second gear (461) and third gear (462) that are set in the avoidance groove (302) and are engaged with each other;The second gear (461) is coaxial with the second winding wheel (450) and is fixedly connected;The driving motor is installed below the avoidance groove (302) and is drivingly connected with the third gear (462);First magnetic block (471) and second magnetic block (472) distributed around the axis of the third gear (462) are embedded on the third gear (462), the first magnetic block (471) and the second magnetic block (472) are opposite in polarity;Third magnetic block and fourth magnetic block of opposite polarity are respectively arranged on the guide plate (410) corresponding to the first magnetic block (471) and the second magnetic block (472);Air cylinder unit (480) is also installed in the avoidance groove (302), one end of the air cylinder unit (480) is rotatably connected with the groove bottom wall of the avoidance groove (302), the other end of the air cylinder unit (480) is rotatably connected with the guide plate (410); Sweeping material assembly (500), the sweeping material assembly (500) includes sweeping block (510) that can be active on the surface of the forming groove (301); When the denture raw material is poured into the forming groove (301), the plurality of guide plates (410) are located at the inclined position (402); after the denture raw material is poured into the forming groove (301), at least one of the guide plates (410) is located at the horizontal position (401) to enable the sweeping block (510) to sweep the powder into the forming groove (301).

2. The powder transfer apparatus for producing a denture material according to claim 1, wherein When the guide plate (410) is located at the horizontal position (401), the side plate (420) does not exceed the guide plate (410) in the width direction and is stacked between the guide plate (410) and the bottom wall of the avoiding groove (302); when the guide plate (410) is located at the inclined position (402), the side plate (420) at least partially exceeds the guide plate (410) in the width direction.

3. The powder transfer apparatus for producing a denture material according to claim 2, wherein Both of the side plates (420) are provided with a rack portion (421), the rack portion (421) of one side plate (420) is engaged with one end of the first gear (430), and the rack portion (421) of the other side plate (420) is engaged with the other end of the first gear (430).

4. The powder transfer apparatus for producing a denture material according to claim 3, wherein The guide assembly (400) further comprises a reset shaft and a reset elastic member, the reset shaft is sequentially provided with the first winding wheel (440) and the first gear (430) and is rotationally connected with the guide plate (410), one end of the reset elastic member is fixedly connected with the guide plate (410), the other end of the reset elastic member is fixedly connected with the reset shaft, so that the reset shaft has a tendency to make the side plate (420) unfold from the guide plate (410); and the driving portion is used for driving the second winding wheel (450) to rotate.

5. The powder transfer apparatus for producing a denture material according to claim 3, wherein The guide plate (410) is provided with first guide blocks (411) facing each other, the first guide blocks (411) are formed with first guide grooves (413) on the sides facing each other, and the rack portion (421) is correspondingly and slidably connected with the first guide grooves (413); Both of the side plates (420) are provided with guide rods (422), the guide plate (410) is further provided with second guide blocks (412) facing away from each other, the second guide blocks (412) are formed with second guide grooves (414) on the sides facing away from each other, and the guide rods (422) are correspondingly and slidably connected with the second guide grooves (414).

6. The powder transfer apparatus for producing a denture material according to claim 1, wherein The sweeping assembly (500) comprises a moving portion (520) and a rotating portion (530), the rotating portion (530) is installed on the moving end of the moving portion (520), and the sweeping block (510) is installed on the rotating end of the rotating portion (530).

7. The powder transfer apparatus for producing a denture material according to claim 6, wherein The rotating end is provided with a first lifting unit and a second lifting unit, the sweeping block (510) comprises a first sweeping portion (511) installed on the first lifting unit and a second sweeping portion (512) installed on the second lifting unit; The projection of the first sweeping surface (513) of the first sweeping part (511) on the pressing device (300) is in a straight line shape, the projection of the second sweeping surface (514) of the second sweeping part (512) on the pressing device (300) is in an arc shape, and the first sweeping surface (513) and the second sweeping surface (514) form a closed figure.

8. A method of loading a denture material, characterized by, The application is applied to the powder transfer device for the production of denture raw materials as claimed in any one of claims 1-7, comprising: Weighing a predetermined weight of denture raw materials and transferring to the top of the forming groove; After the guide plates are in the inclined position, the denture raw materials are poured into the forming groove; The guide plates are swept in turn, and the process of sweeping the guide plates includes: the guide plate for sweeping is in the horizontal position, the other guide plates are in the inclined position, and the denture raw materials in the area where the guide plate for sweeping is located are swept into the forming groove; The guide plates are in the horizontal position, and the denture raw materials are swept into the forming groove according to the predetermined track. The application is applied to the powder transfer device for the production of denture raw materials as claimed in any one of claims 1-7, comprising: Weighing a predetermined weight of denture raw materials and transferring to the top of the forming groove; After the guide plates are in the inclined position, the denture raw materials are poured into the forming groove; The guide plates are swept in turn, and the process of sweeping the guide plates includes: the guide plate for sweeping is in the horizontal position, the other guide plates are in the inclined position, and the denture raw materials in the area where the guide plate for sweeping is located are swept into the forming groove; The guide plates are in the horizontal position, and the denture raw materials are swept into the forming groove according to the predetermined track.

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