Multi-station disc forming machine

Abstract

The utility model belongs to the technical field of forming equipment, and provides a multi-station disc forming machine which comprises a machine frame and a forming mechanism installed on the machine frame, and the forming mechanism comprises a rotating disc connected with the machine frame in a rotating mode, a rotating power piece driving the rotating disc to rotate and a plurality of ejecting blocks movably connected with the rotating disc. A plurality of forming cavities are formed in the rotary disc in the circumferential direction at intervals, the ejection blocks correspond to the forming cavities one to one, the ejection blocks are arranged at the bottoms of the forming cavities, and ejection power pieces used for driving the ejection blocks to ascend and descend in the forming cavities are arranged at the bottom of the rotary disc. According to the multi-station disc forming machine, the multiple forming cavities are formed in the circumferential direction of the rotary disc at intervals, the shape and size of the forming cavities can be set according to the shape and size of a needed false tooth blank, glass ceramic in a molten state is injected into the forming cavities, and the rotary disc is driven by the rotary power part to rotate so that different forming cavities can be switched; and the cooled and shaped false tooth blank is ejected by the ejection power piece driving the ejection block, so that cyclic operation can be realized, the production efficiency is high, and the material waste is low.

Description

Technical Field

[0001] The utility model relates to the technical field of forming equipment, and particularly relates to a multi-station disc forming machine. Background Art

[0002] Glass-ceramics is a commonly used material for making dentures. It has good light transmittance and aesthetics, and has a relatively high hardness, so it is often used for tooth restoration. The commonly used method for preparing glass-ceramics is the melting method. In this method, various raw materials and additives are mixed evenly, melted at a high temperature of 1100°C to 1550°C, homogenized, and then the glass melt is formed. After annealing, nucleation and crystallization are carried out at a certain temperature to obtain glass-ceramics with fine, uniform grains and overall crystallization.

[0003] Since the volume of a single denture is very small, the glass-ceramics usually used for processing dentures also need to be prepared into small-volume blanks for subsequent denture processing and forming. There are usually two ways to produce the blanks for making glass-ceramics for dentures. One is to first produce a large block of glass-ceramics by the melting method, and then cut the large-volume glass-ceramics block into denture blanks of the required size. This production process has the defects of numerous processes and large raw material losses. The other is to set blank molds on a flowing conveyor belt, and then pour the molten raw materials into the blank molds for forming. Although this method can directly produce the blanks required for making dentures, setting up the conveyor belt occupies a large area, and a large number of blank molds need to be equipped, resulting in high costs.

[0004] The technical problem to be solved by the utility model is: how to solve the problems of low material utilization rate, low production efficiency, and large equipment volume and high cost existing in the production of denture blanks from existing glass-ceramics. Content of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a multi-station disc forming machine, which has the characteristics of simple and compact structure, high forming efficiency and high material utilization rate.

[0006] The technical solution adopted by the utility model is: a multi-station disc forming machine, including a frame and a forming mechanism installed on the frame. The forming mechanism includes a turntable rotatably connected to the frame, a rotary power member for driving the turntable to rotate, and a plurality of ejector blocks movably connected to the turntable. A plurality of forming cavities are arranged at intervals along the circumferential direction on the turntable. Each ejector block corresponds to each forming cavity one by one, and each ejector block is placed at the bottom of the forming cavity. An ejecting power member for driving the ejector block to lift inside the forming cavity is arranged at the bottom of the turntable.

[0007] The multi-station disk forming machine of the present application is provided with a number of forming cavities at intervals in the circumferential direction of the turntable. The shape and size of the forming cavities can be set according to the shape and size of the required denture blanks. The molten glass-ceramics are injected into the forming cavities, and the turntable is driven to rotate by a rotating power component so as to switch different forming cavities. The denture blanks after cooling and shaping are ejected by an ejecting power component driving an ejecting block, and cyclic operation can be realized, with high production efficiency and less material waste.

[0008] In some embodiments, the forming mechanism further includes a number of forming dies detachably connected to the turntable. The forming dies are arranged at intervals in the circumferential direction of the turntable, and the forming cavities are formed on the forming dies. A number of positioning grooves corresponding to the forming dies are provided on the turntable.

[0009] By adopting the above technical solution, by arranging the forming dies on the turntable and then forming the forming cavities on the forming dies, different forming dies can be selected according to the production of different denture blanks, which is beneficial to improving the general performance of the equipment and reducing the cost of producing different types of denture blanks.

[0010] In some embodiments, the positioning grooves penetrate through the turntable, and a supporting block for blocking the positioning grooves is arranged at the bottom of the turntable. The supporting block is detachably connected to the turntable.

[0011] By adopting the above technical solution, the positioning grooves are set as through grooves, which can facilitate the loading and unloading of the forming dies. By arranging the supporting block at the top of the positioning grooves, the forming dies can be supported and a positioning reference can be provided for the forming dies. When disassembling the forming dies, only the supporting block needs to be removed, and then the forming dies can be ejected, which is convenient and fast.

[0012] In some embodiments, the ejecting block is connected with an extension rod. One end of the extension rod is connected to the ejecting block, and the other end extends towards the bottom of the turntable. The supporting block is provided with a through hole for the extension rod to pass through.

[0013] By adopting the above technical solution, by arranging the extension rod, the stroke of the ejecting power component can be reduced. In addition, the extension rod can make the center of gravity of the ejecting block face downwards, thereby improving the stability of the lifting of the ejecting block. The extension rod can also play a guiding role in cooperation with the through hole.

[0014] In some embodiments, a lifting mechanism is further included. The lifting mechanism includes a lifting table slidably connected to the frame, a mounting frame installed on the lifting table, and a lifting power component for driving the lifting table to lift. A guiding column is arranged on the frame, and a guiding sleeve slidably matched with the guiding column is arranged on the lifting table. The rotating power component is installed on the mounting frame, the ejecting power component is installed on the lifting table, and the lifting power component is installed on the frame. The output end of the lifting power component is connected to the lifting table.

[0015] By adopting the above technical solution, the lifting table is driven to lift by the lifting power component, so that the height of the turntable can be adjusted, and further the distance between the turntable and the pouring port can be adjusted.

[0016] In some embodiments, there are multiple guide posts, and a fixing plate is connected between two adjacent guide posts.

[0017] With the above technical solution, the fixing plate can improve the stability of the guide posts.

[0018] In some embodiments, the lifting power component is a worm and worm gear lift. The output end of the worm and worm gear lift is connected to a lead screw, and the other end of the lead screw is connected to the lifting table.

[0019] With the above technical solution, the lifting table is driven by the worm and worm gear lift to be lifted and lowered, and the height of the lifting table can be adjusted according to actual needs. The adjustment is convenient and accurate. Moreover, the lead screw has the characteristic of self-locking, which can improve the reliability of the molding machine.

[0020] In some embodiments, the molding mechanism further includes a finished product hopper and a waste product hopper arranged at the edge of the turntable. The finished product hopper and the waste product hopper are arranged at intervals along the circumferential direction of the turntable. The finished product hopper and the waste product hopper are installed on the frame, and the finished product hopper is arranged on the side of the ejection power component.

[0021] With the above technical solution, the finished product hopper is used to receive the denture blanks ejected from the molding cavity, and the waste product hopper is used to receive the waste materials dropped on the turntable or at the edge of the molding cavity, so as to recycle the waste materials.

[0022] In some embodiments, an auxiliary frame is further arranged at the edge of the turntable.

[0023] With the above technical solution, the auxiliary frame is used to install a blowtorch and an air gun. In some cases, if the blank cools too quickly, it will affect the molding quality. Therefore, the mold or the raw material is heated by the blowtorch to slow down the cooling speed of the raw material and improve the molding quality; in some cases, it is necessary to accelerate the cooling speed of the blank, and the air gun is used to accelerate the cooling of the blank. In addition, the air gun can also be used to blow off the waste materials.

[0024] In some embodiments, a support frame is further arranged on the frame, and a splitter is arranged on the support frame.

[0025] By adopting the above technical solution, the support frame is used to install the splitter, and the splitter can divide a gas source or a gas fuel source into multiple branches according to requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a multi-station disc molding machine according to a preferred embodiment of the present invention;

[0027] Figure 2 is Figure 1 a schematic structural diagram of another perspective of the multi-station disc molding machine shown;

[0028] Figure 3 isFigure 1 Schematic structural diagram of the lifting table, mounting bracket and forming mechanism in the multi-station disc forming machine shown;

[0029] Figure 4 For Figure 3 Schematic structural diagram of the forming die, ejector block, supporting block and extension rod in the forming mechanism shown in

[0030] In the figure: 100, multi-station disc forming machine; 10, frame; 11, bottom plate, 12, fixed seat; 13, auxiliary frame; 14, support frame; 15, splitter; 20, forming mechanism; 21, turntable; 211, positioning groove; 22, rotating power component; 23, forming cavity; 24, ejector block; 25, ejecting power component; 26, forming die; 27, supporting block; 28, extension rod; 29, finished product hopper; 30, lifting mechanism; 31, lifting table; 32, mounting bracket; 33, lifting power component; 34, guide post; 35, guide sleeve; 36, fixing plate. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a middle element at the same time. When the number of an element is referred to as having "a plurality", it can be any number of two or more. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0034] Please refer to Figures 1 to 4, A multi-station disk molding machine 100 according to a preferred embodiment of the present invention includes a frame 10 and a molding mechanism 20 installed on the frame 10. The molding mechanism 20 includes a turntable 21 rotatably connected to the frame 10, a rotary power member 22 for driving the turntable 21 to rotate, and a plurality of ejector blocks 24 movably connected to the turntable 21. A plurality of molding cavities 23 are provided at intervals along the circumference of the turntable 21. Each ejector block 24 corresponds to each molding cavity 23 one by one, and each ejector block 24 is placed at the bottom of the molding cavity 23. An ejecting power member 25 is provided at the bottom of the turntable 21 for driving the ejector block 24 to lift inside the molding cavity 23. In the multi-station disk molding machine 100 of the present application, by providing a plurality of molding cavities 23 at intervals along the circumference of the turntable 21, the shape and size of the molding cavity 23 can be set according to the shape and size of the required denture blank. The molten glass-ceramic is injected into the molding cavity 23, and the turntable 21 is driven to rotate by the rotary power member 22 to switch different molding cavities 23. The cooled and solidified denture blank is ejected by the ejecting power member 25 driving the ejector block 24, which can realize cyclic operation, with high production efficiency and less material waste.

[0035] In this embodiment, the rotary power member 22 is a servo motor. In other embodiments, a general motor, an internal combustion engine, etc. can also be used as the rotary power member 22.

[0036] Furthermore, the molding mechanism 20 further includes a plurality of molding dies 26 detachably connected to the turntable 21. Each molding die 26 is evenly spaced along the circumference of the turntable 21. The molding cavity 23 is opened on the molding die 26, and a plurality of positioning grooves 211 corresponding to the molding dies 26 are provided on the turntable 21. By providing the molding dies 26 on the turntable 21 and then opening the molding cavity 23 on the molding die 26, different molding dies 26 can be selected according to the production of different denture blanks, which is beneficial to improving the general performance of the equipment and reducing the cost of producing different types of denture blanks.

[0037] As Figure 3 shown, in order to facilitate fixing the molding die 26 on the turntable 21, screw holes for bolts to be screwed into are provided on the side surface of the turntable 21. The axial direction of the screw holes is parallel to the radial direction of the turntable 21, and the molding die 26 is fixed on the turntable 21 by screwing bolts from the side surface of the turntable 21.

[0038] Preferably, the positioning groove 211 penetrates through the turntable 21, and a support block 27 for blocking the positioning groove 211 is provided at the bottom of the turntable 21. The support block 27 is detachably connected to the turntable 21. By setting the positioning groove 211 as a through groove, it is convenient to load and unload the molding die 26. By providing the support block 27 at the top of the positioning groove 211, the molding die 26 can be supported and a positioning reference can be provided for the molding die 26. When disassembling the molding die 26, only the support block 27 needs to be removed, and then the molding die 26 is ejected, which is convenient and fast. In this embodiment, the support block 27 is connected to the turntable 21 by bolts.

[0039] As shown Figure 3 and Figure 4 in the figure, the top block 24 is connected with an extension rod 28. One end of the extension rod 28 is connected with the top block 24, and the other end extends towards the bottom of the turntable 21. The support block 27 is provided with a through hole for the extension rod 28 to pass through. By arranging the extension rod 28, the stroke of the ejection power member 25 can be reduced. In addition, the extension rod 28 can make the center of gravity of the top block 24 face downwards, thereby improving the stability of the lifting of the top block 24, and can also play a guiding role in cooperation with the through hole.

[0040] In this embodiment, the ejection power member 25 is a cylinder. The cylinder block of the cylinder is fixed on the frame 10, and the telescopic rod of the cylinder is arranged corresponding to the extension rod 28.

[0041] In one embodiment, in order to facilitate adjusting the distance between the turntable 21 and the pouring gate, the multi-station disc molding machine 100 further includes a lifting mechanism 30. The lifting mechanism 30 includes a lifting table 31 slidably connected to the frame 10, a mounting frame 32 installed on the lifting table 31, and a lifting power member 33 for driving the lifting table 31 to lift. Guide columns 34 are arranged on the frame 10, and guide sleeves 35 slidably matched with the guide columns 34 are arranged on the lifting table 31. The rotary power member 22 is installed on the mounting frame 32, the ejection power member 25 is installed on the lifting table 31, and the lifting power member 33 is installed on the frame 10. The output end of the lifting power member 33 is connected with the lifting table 31. By driving the lifting table 31 to lift through the lifting power member 33, the height of the turntable 21 can be adjusted, and further the distance between the turntable 21 and the pouring gate can be adjusted.

[0042] Preferably, the number of the guide columns 34 is multiple, and a fixing plate 36 is connected between two adjacent guide columns 34. The fixing plate 36 can improve the stability of the guide columns 34. In this embodiment, the number of the guide columns 34 is four. In other embodiments, the number of the guide columns 34 can be increased or decreased according to actual requirements.

[0043] In this embodiment, the lifting power member 33 is a worm gear and worm elevator. The output end of the worm gear and worm elevator is connected with a lead screw, and the other end of the lead screw is connected with the lifting table 31. By driving the lifting table 31 to lift through the worm gear and worm elevator, the height of the lifting table 31 can be adjusted according to actual requirements, the adjustment is convenient and accurate, and the lead screw has the characteristic of self-locking, which can improve the reliability of the molding machine. Further, the worm gear and worm elevator is driven by a hand wheel. In other embodiments, the worm gear and worm elevator can also be driven by other means, such as a motor. In other embodiments, other power components that can achieve the same function can also be used as the lifting power member 33, such as an electric push rod, a cylinder or a hydraulic cylinder.

[0044] As shown Figure 1 and Figure 2As shown in the figure, the molding mechanism 20 further includes a finished product hopper 29 and a waste hopper (not labeled in the figure) provided at the edge of the turntable 21. The finished product hopper 29 and the waste hopper are arranged at intervals along the circumferential direction of the turntable 21. The finished product hopper 29 and the waste hopper are installed on the frame 10, and the finished product hopper 29 is provided on the side of the ejecting power member 25. The finished product hopper 29 is used to receive the denture blanks ejected from the molding cavity 23, and the waste hopper is used to receive the waste materials dropped on the turntable 21 or the edge of the molding cavity 23, so as to facilitate the recycling of the waste materials.

[0045] Please refer to Figure 1 again Figure 2 Figure, the frame 10 includes a bottom plate 11 and a fixed seat 12 installed on the bottom plate 11. The bottom of the bottom plate 11 is installed with foot cups (not labeled in the figure) and universal wheels (not labeled in the figure), and the lifting power member 33 is installed on the fixed seat 12.

[0046] Furthermore, the frame 10 further includes an auxiliary frame 13. The auxiliary frame 13 is installed on the bottom plate 11 and is provided at the edge of the turntable 21. The auxiliary frame 13 is used to install a blowtorch and an air gun. In some cases, if the blank cools too quickly, it will affect the molding quality. Therefore, a blowtorch is used to heat the mold or the raw material to slow down the cooling speed of the raw material and improve the molding quality. In some cases, it is necessary to accelerate the cooling speed of the blank, and the air gun is used to accelerate the cooling of the blank. In addition, the air gun can also be used to blow off the waste materials.

[0047] Optionally, a support frame 14 is further provided on the frame 10, and a splitter 15 is provided on the support frame 14. The support frame 14 is used to install the splitter 15, and the splitter 15 can divide a gas source or a fuel gas source into multiple branches according to requirements.

[0048] During use, place the multi-station disk molding machine 100 below the discharge port of the melting furnace, and align the discharge port with the molding cavity 23 of the molding die 26 on the turntable 21. In order to allow the blank to fully cool and form, the discharge port of the melting furnace should be far away from the finished product hopper 29. Adjust the rotation speed of the rotation power member 22 according to the pouring speed of the melting furnace, and adjust the height of the turntable 21 by turning the handwheel according to requirements. Then open the pouring port and inject the raw material into the molding cavity 23. The poured mold rotates with the turntable 21. After the raw material in the molding cavity 23 is cooled naturally or by the air gun, the ejecting power member 25 ejects the blank from the molding cavity 23 and drops it into the finished product hopper 29, and the waste materials on the turntable 21 and the molding die 26 are blown away by the air gun and fall into the waste hopper.

[0049] Finally, it should be noted that the above are only preferred examples of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A multi-station disc forming machine, comprising a frame (10) and a forming mechanism (20) mounted on the frame (10), characterized in that, The forming mechanism (20) includes a turntable (21) rotatably connected to the frame (10), a rotary power member (22) for driving the turntable (21) to rotate, and a plurality of ejector blocks (24) movably connected to the turntable (21). A plurality of forming cavities (23) are circumferentially spaced on the turntable (21). Each of the ejector blocks (24) corresponds to one of the forming cavities (23), and each of the ejector blocks (24) is placed at the bottom of the forming cavity (23). An ejecting power member (25) for driving the ejector block (24) to lift and lower inside the forming cavity (23) is arranged at the bottom of the turntable (21).

2. The multi-station disk forming machine according to claim 1, wherein The forming mechanism (20) further includes a plurality of forming molds (26) detachably connected to the turntable (21). The forming molds (26) are circumferentially spaced along the turntable (21). The forming cavities (23) are formed on the forming molds (26). A plurality of positioning grooves (211) corresponding to the forming molds (26) are arranged on the turntable (21).

3. The multi-station disk forming machine according to claim 2, characterized in that, The positioning groove (211) penetrates through the turntable (21). A supporting block (27) for blocking the positioning groove (211) is arranged at the bottom of the turntable (21). The supporting block (27) is detachably connected to the turntable (21).

4. The multi-station disk forming machine according to claim 3, characterized in that, The ejector block (24) is connected with an extension rod (28). One end of the extension rod (28) is connected to the ejector block (24), and the other end extends towards the bottom of the turntable (21). A through hole for the extension rod (28) to pass through is arranged on the supporting block (27).

5. The multi-station disk forming machine according to claim 1, characterized in that, It further includes a lifting mechanism (30). The lifting mechanism (30) includes a lifting table (31) slidably connected to the frame (10), a mounting frame (32) installed on the lifting table (31), and a lifting power member (33) for driving the lifting table (31) to lift and lower. A guiding column (34) is arranged on the frame (10). A guiding sleeve (35) slidably matched with the guiding column (34) is arranged on the lifting table (31). The rotary power member (22) is installed on the mounting frame (32). The ejecting power member (25) is installed on the lifting table (31). The lifting power member (33) is installed on the frame (10). The output end of the lifting power member (33) is connected to the lifting table (31).

6. The multi-station disk forming machine according to claim 5, characterized in that The number of the guiding columns (34) is multiple. A fixing plate (36) is connected between two adjacent guiding columns (34).

7. The multi-station disc forming machine according to claim 5, characterized in that, The lifting power member (33) is a worm and worm gear lift. The output end of the worm and worm gear lift is connected with a lead screw. The other end of the lead screw is connected to the lifting table (31).

8. The multi-station disk forming machine according to claim 1, characterized in that, The forming mechanism (20) further includes a finished product hopper (29) and a waste hopper arranged at the edge of the turntable (21). The finished product hopper (29) and the waste hopper are circumferentially spaced along the turntable (21). The finished product hopper (29) and the waste hopper are installed on the frame (10). The finished product hopper (29) is arranged on the side of the ejecting power member (25).

9. The multi-station disk forming machine according to claim 1, wherein, An auxiliary frame (13) is further arranged at the edge of the turntable (21).

10. The multi-station disk forming machine according to claim 1, characterized in that, A support frame (14) is further arranged on the frame (10). A splitter (15) is arranged on the support frame (14).

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