Powder molding machine pressurizing mechanism for ceramic filter for alumina ceramic processing

Abstract

The application relates to the technical field of powder forming machines, and discloses a powder forming machine pressing mechanism for an alumina ceramic filter, which comprises a connecting shaft fixedly connected to the outer wall of a connecting plate, and a rotating plate rotatably connected to the outer wall of the connecting shaft; when the device is running, the hydraulic cylinder drives the push plate and the connecting plate to move towards the lower die; when moving to a certain position, feeding to the mold cavity in the lower die is started; after the feeding is completed, the hydraulic cylinder drives the push plate and the connecting plate to return to the initial position; at this time, the outer wall of the end of the push plate close to the hydraulic cylinder carries back a certain amount of powder; after the lower die and the upper die complete the powder pressing under the action of the hydraulic device, the jacking device ejects the initial blank after the pressing is completed from the mold cavity of the lower die; at this time, the hydraulic cylinder drives the push plate and the connecting plate to move towards the lower die again; in this process, the rotating plate moves the powder behind the push plate until the powder enters the mold cavity of the lower die.

Description

Technical Field

[0001] This invention relates to the field of powder forming machine technology, specifically to the pressure mechanism of a powder forming machine for ceramic filters used in alumina ceramic processing. Background Technology

[0002] With the rapid development of fields such as electronic information, automotive electronics, and communication technology, ceramic filters, as core frequency selection and signal processing components, are seeing their application scenarios continuously expand and performance requirements constantly increase. Alumina ceramics, with their excellent high-temperature resistance, insulation, mechanical strength, and chemical stability, have become the preferred substrate for fabricating high-performance ceramic filters. The fabrication process of ceramic filters encompasses key steps such as powder preparation, molding, sintering, and finishing. Among these, powder molding is the core process that determines the density uniformity, dimensional accuracy, and subsequent sintering quality of the filter blank. The pressurizing mechanism, as the core actuator of the powder molding machine, directly affects the molding quality of the alumina ceramic filter blank through its pressurization stability and other properties.

[0003] In actual processing, when feeding material into the mold cavity, a certain proportion needs to overflow to keep the amount of powder in the mold cavity relatively full. When the push plate pushes out the initial blank after pressure is applied, it will carry away the overflowed powder as it returns to the initial state, resulting in a decrease in powder utilization. At the same time, the powder carried back will also increase the cleaning work, resulting in a decrease in production efficiency. Some powder will invade the mechanism, affecting the movement of the mechanism. In severe cases, it may damage the mechanism and affect the production schedule. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a pressurizing mechanism for a powder forming machine of a ceramic filter for alumina ceramic processing, including a support frame, two hydraulic devices fixedly connected to the outer wall of the support frame, a lifting device fixedly connected to the outer wall of the support frame, and further comprising:

[0005] The pressurizing mechanism is fixedly connected to the outer wall of the support frame. The pressurizing mechanism is used to pressurize powder.

[0006] The limiting mechanism is fixedly connected to the inner wall of the pressurizing mechanism at its outer wall. The limiting mechanism is used to restrict a part of the pressurizing mechanism.

[0007] The bridging mechanism is rotatably connected at its outer wall to the inner wall of the limiting mechanism. The bridging mechanism is used to reduce the bridging effect of powder materials.

[0008] A lower mold is fixedly connected to the outer wall of the support frame, an upper mold is fixedly connected to the outer wall of the two hydraulic devices, and a feeding support plate is fixedly connected to the outer wall of the support frame.

[0009] When in use, first place this device in the appropriate position, feed powder into the working chamber of this device through the device in the previous process, then process the powder through this device so that the powder is processed into the required initial blank, and finally input into the next process.

[0010] The inner wall of the upper mold is slidably connected to the outer wall of the support frame.

[0011] Preferably, the pressurization mechanism includes:

[0012] The pressurizing assembly is fixedly connected to the outer wall of the feeding support plate;

[0013] The pushing component is fixedly connected to the outer wall of the pressurizing component.

[0014] Preferably, the limiting mechanism includes:

[0015] A limiting component is fixedly connected at its outer wall to the inner wall of the pressurizing component;

[0016] The trigger component is fixedly connected to the inner wall of the lower mold at its outer wall.

[0017] Preferably, the bridge-breaking mechanism includes:

[0018] The bridge-breaking component is rotatably connected to the inner wall of the trigger component at its outer wall.

[0019] The outer wall of the dispersion component is fixedly connected to the outer wall of the trigger component.

[0020] Preferably, the pressurization assembly includes two hydraulic cylinders fixedly connected to the outer wall of the feeding support plate, a push plate fixedly connected to the outer wall of the two hydraulic cylinders, and a connecting plate fixedly connected to the outer wall of the push plate.

[0021] In actual processing, in order to maintain the density and structural integrity of the blank, a certain proportion of material needs to overflow from the mold cavity when feeding the lower mold, so as to ensure that the mold cavity is completely filled and avoid the blank shape being incomplete. During the operation of the device, the hydraulic cylinder drives the push plate and the connecting plate to move towards the lower mold. When it moves to a certain position, it begins to feed material into the mold cavity of the lower mold. After the feeding is completed, the hydraulic cylinder drives the push plate and the connecting plate away and retract to the initial position. During this process, the push plate will bring the overflowing excess material back to the feeding support plate, which increases the cleaning work and wastes raw materials.

[0022] Preferably, the pushing component includes a connecting shaft fixedly connected to the outer wall of the connecting plate, a rotating plate rotatably connected to the outer wall of the connecting shaft, and two torsion springs sleeved on the outer wall of the connecting shaft;

[0023] When the device starts running, the hydraulic cylinder drives the push plate and connecting plate to move towards the lower mold. After moving to a certain position, it begins to feed material into the mold cavity of the lower mold. After the material is fed, the hydraulic cylinder drives the push plate and connecting plate back to the initial position. At this time, a certain amount of powder will be brought back from the outer wall of the push plate near the hydraulic cylinder. After the lower mold and upper mold have completed the pressurization of the powder under the action of the hydraulic device, the lifting device will push the pressurized initial blank out of the mold cavity of the lower mold. At this time, the hydraulic cylinder will drive the push plate and connecting plate to move towards the lower mold again. During this process, the rotating plate will move the powder behind the push plate together until it enters the mold cavity of the lower mold. At the same time, the push plate in front of the rotating plate will push out the ejected blank, thereby completing the processing of the powder.

[0024] One end of the torsion spring is fixedly connected to the inner wall of the connecting plate at its outer end, and the other end of the torsion spring away from the connecting plate at its outer end is fixedly connected to the inner wall of the rotating plate at its inner end.

[0025] Preferably, the limiting component includes two limiting springs fixedly connected to the inner wall of the connecting plate, a limiting ball fixedly connected to the outer wall of the two limiting springs at the end away from the connecting plate, and two ball-loaded reset plates fixedly connected to the outer wall of the two hydraulic cylinders.

[0026] Furthermore, when the rotating plate passes the cavity of the lower mold and contacts the trigger ball on the lower mold, the interaction force between the rotating plate and the trigger ball causes the rotating plate to break through the restriction of the limiting ball and the limiting spring. Under the action of the torsion spring, it rotates around the connecting axis towards the connecting plate at a certain angle. At the same time, the potential energy accumulated by the torsion spring is released. As the initial blank is pushed out, the hydraulic cylinder will drive the push plate and the connecting plate back to the initial state. During this process, when the rotating plate contacts the ball-loaded reset plate set on the hydraulic cylinder, the rotating plate will begin to move towards the push plate under the action of the ball-loaded reset plate. The plate rotates around the connecting shaft until the push plate is reset. The rotating plate will then rotate to its initial state under the action of the ball-loaded reset plate. The limiting ball will continue to restrict the rotating plate under the action of the limiting spring. At the same time, the torsion spring accumulates potential energy. Through this motion mechanism, after the billet is pressurized, the rotating plate will carry the powder remaining after the push plate into the mold cavity of the lower mold. During the process of returning to the initial state, the rotating plate rotates at a certain angle so that it will not affect the overflowing powder. This cycle can be repeated to reuse the powder brought back by the push plate, improve the powder utilization rate, and reduce the amount of cleaning work.

[0027] The outer walls of the two limiting balls are slidably connected to the inner wall of the connecting plate.

[0028] Preferably, the triggering assembly includes two triggering springs fixedly connected to the inner wall of the lower mold, triggering balls fixedly connected to the outer wall of the two triggering springs at the end away from the lower mold, and a hopper fixedly connected to the outer wall of the connecting plate.

[0029] When the device is not running, the trigger ball is restricted by the limiting spring and the limiting ball, keeping it roughly parallel to the push plate. At this time, the torsion springs on both sides of the connecting shaft are twisted by the rotating plate, thus accumulating a certain amount of potential energy.

[0030] Preferably, the bridge breaking assembly includes a rotating shaft rotatably connected to the inner wall of the hopper, several connecting rods fixedly connected to the outer walls of both ends of the rotating shaft, and several fixing rods fixedly connected to the outer walls of the two hydraulic cylinders.

[0031] In actual operation, because the hopper contains powdered raw materials, and the alumina ceramic powder itself has poor flowability and is prone to agglomeration, bridging can easily occur at the hopper outlet, making it impossible to feed material into the mold cavity of the lower mold. At this time, a rotating shaft is set in the hopper, and several connecting rods are evenly set at both ends of the rotating shaft, with the connecting rods on both sides staggered. When the hydraulic cylinder drives the push plate and connecting plate to move towards the lower mold, the connecting rods on both sides will contact the fixed rods set on the hydraulic cylinder one by one. Each time they contact the fixed rod, the rotating shaft will rotate a certain angle. The rotation of the rotating shaft will cause the connecting rods set on it to stir the powder in the hopper. This breaks the bridging formed by the interaction of powder in the hopper, thereby reducing the blockage caused by the bridging phenomenon formed by the interaction of powder, which is more conducive to feeding material into the mold cavity of the lower mold.

[0032] Preferably, the dispersion component includes a plurality of dispersion connecting balls fixedly connected to the inner wall of the connecting plate, and a plurality of slots are provided on the outer wall of the plurality of dispersion connecting balls.

[0033] When feeding material to the lower mold, due to the difference in particle size between the powders, stratification and segregation will occur during the falling process. Large powder particles, due to their greater gravity and faster falling speed, tend to concentrate at the bottom of the lower mold cavity, while small powder particles are carried to the edge of the cavity. This results in uneven particle distribution inside the formed green body, leading to a decrease in the quality of the green body. At this time, a dispersion component is set at the discharge port of the hopper. When the discharge port in the hopper is opened, the powder begins to flow from the hopper into the mold cavity of the lower mold through the discharge port. When the powder flows through the dispersion connecting ball, the slightly larger particles will first contact the groove on the dispersion connecting ball and flow down to the lower mold along the groove. Furthermore, due to the effect of the groove, its flow speed is slowed down to a certain extent, thereby reducing the difference in falling speed between large and small particles to a certain extent, reducing the phenomenon of stratification and segregation, and maintaining a certain uniformity of particles in the green body.

[0034] Utilizing the operating mechanism of the aforementioned structure, when feeding material into the cavity of the lower mold, an accumulation phenomenon occurs where the center is high and the surrounding area is low. This height difference can lead to local over-dense or loose filling of the mold cavity, resulting in an uneven structure of the blank. At the same time, the height difference causes powder to flow from the high point to the low point around the perimeter, resulting in uneven particle distribution. At this time, the dispersing connecting ball divides the outlet of the hopper into multiple outlets, which allows the powder to fall into the lower mold at multiple points. Furthermore, the flow diversion by the dispersing connecting ball reduces the accumulation difference of powder at the bottom of the lower mold cavity. The reduction of the height difference can reduce the flow of powder falling into the mold cavity to the surrounding area, thus reducing its impact on the quality of the blank.

[0035] The present invention has the following beneficial effects:

[0036] (1) In the actual processing of the present invention, in order to maintain the density and structural integrity of the blank, a certain proportion of the material needs to overflow the mold cavity when feeding the lower mold, so as to ensure the complete filling of the mold cavity and avoid the blank shape being incomplete. During the operation of the device, the hydraulic cylinder drives the push plate and the connecting plate to move towards the lower mold. When it moves to a certain position, it starts to feed the mold cavity in the lower mold. After the material is fed, the hydraulic cylinder drives the push plate and the connecting plate away and retract to the initial position. During this process, the push plate will bring the overflowing excess material back to the feeding support plate, which increases the cleaning work and wastes the raw materials. At this time, the pressure component drives the push component to move, and at the same time, the operation mechanism of the limiting component and the trigger component is used to collect and reuse the powder brought back.

[0037] (2) In actual operation, the present invention stores powder raw materials in the hopper. The alumina ceramic powder itself has poor fluidity and is easy to agglomerate. It is easy to cause bridging at the outlet of the hopper, which makes it impossible to supply material to the mold cavity in the lower mold. Through the operation mechanism of the bridging component, the bridging formed by the interaction of powder in the hopper is broken, thereby reducing the blockage caused by the bridging phenomenon formed by the interaction between powders, which is more conducive to supplying material to the mold cavity in the lower mold.

[0038] (3) When the material is fed to the lower mold, due to the certain difference in particle size between the powders, stratification and segregation will occur during the falling process. Large powder particles are easily concentrated at the bottom of the lower mold cavity due to their large gravity and fast falling speed, while small powder particles will be carried to the edge of the mold cavity. This results in uneven particle distribution inside the formed blank, leading to a decrease in the quality of the blank. At this time, a dispersing component is set at the discharge port of the hopper. Through the operation mechanism of the dispersing component, the difference in falling speed between large and small particles is reduced to a certain extent, reducing the phenomenon of stratification and segregation, and maintaining a certain uniformity of the blank particles.

[0039] (4) The present invention utilizes the operating mechanism of the above-mentioned mechanism. When feeding material into the mold cavity of the lower mold, a phenomenon of accumulation with a high center and a low periphery will occur. This height difference will cause the mold cavity to be filled too densely or loosely in some areas, resulting in uneven structure of the blank. At the same time, the height difference will cause the powder to flow from the high point to the low point around the periphery, resulting in uneven particle distribution. At this time, the dispersing connecting ball divides the outlet position of the hopper into multiple outlets, which makes the powder have multiple landing points when it falls into the lower mold. Furthermore, the dispersing connecting ball reduces the accumulation difference of the powder at the bottom of the mold cavity of the lower mold. The reduction of the height difference can reduce the powder falling into the mold cavity from flowing to the periphery of the mold cavity, thus reducing its impact on the quality of the blank. Attached Figure Description

[0040] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0043] Figure 3 This is a cross-sectional schematic diagram of the pressurization mechanism of the present invention;

[0044] Figure 4 This is a schematic diagram of the pressurization component of the present invention;

[0045] Figure 5 This is a cross-sectional view of the component of the present invention;

[0046] Figure 6 For the present invention Figure 6 Enlarged view of point A in the middle;

[0047] Figure 7 This is a schematic diagram of the limiting component of the present invention;

[0048] Figure 8 This is a cross-sectional schematic diagram of the triggering component of the present invention;

[0049] Figure 9 This is a schematic diagram of the bridge-breaking mechanism of the present invention;

[0050] Figure 10 For the present invention Figure 9 Enlarged view of point B in the middle;

[0051] Figure 11 This is a schematic diagram of the dispersion component of the present invention.

[0052] The attached diagram lists the components represented by each number as follows:

[0053] In the diagram: 1. Pressurizing mechanism; 2. Restricting mechanism; 3. Bridge breaking mechanism; 11. Pressurizing component; 12. Pushing component; 13. Support frame; 14. Hydraulic device; 15. Lifting device; 21. Restricting component; 22. Triggering component; 31. Bridge breaking component; 32. Dispersion component; 111. Lower mold; 112. Upper mold; 113. Feeding support plate; 114. Hydraulic cylinder; 115. Push plate; 116. Connecting plate; 121. Connecting shaft; 122. Rotating plate; 123. Torsion spring; 211. Restricting spring; 212. Restricting ball; 213. Ball-carrying reset plate; 221. Triggering spring; 222. Triggering ball; 223. Hopper; 311. Rotating shaft; 312. Connecting rod; 313. Fixing rod; 321. Dispersion connecting ball; 322. Groove. Detailed Implementation

[0054] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] Example 1, please refer to Figure 1 - Figure 11 This invention relates to a pressurizing mechanism for a powder forming machine of a ceramic filter for alumina ceramic processing, comprising a support frame 13, two hydraulic devices 14 fixedly connected to the outer wall of the support frame 13, a lifting device 15 fixedly connected to the outer wall of the support frame 13, and further comprising:

[0056] The outer wall of the pressurizing mechanism 1 is fixedly connected to the outer wall of the support frame 13. The pressurizing mechanism 1 is used to pressurize the powder.

[0057] The limiting mechanism 2 is fixedly connected to the inner wall of the pressurizing mechanism 1 at its outer wall. The limiting mechanism 2 is used to limit a part of the mechanism in the pressurizing mechanism 1.

[0058] The bridging mechanism 3 is rotatably connected at its outer wall to the inner wall of the limiting mechanism 2. The bridging mechanism 3 is used to reduce the bridging effect of powder materials.

[0059] A lower mold 111 is fixedly connected to the outer wall of the support frame 13, an upper mold 112 is fixedly connected to the outer wall of the two hydraulic devices 14, and a feeding support plate 113 is fixedly connected to the outer wall of the support frame 13.

[0060] When in use, first place this device in the appropriate position, feed powder into the working chamber of this device through the device in the previous process, then process the powder through this device so that the powder is processed into the required initial blank, and finally input into the next process.

[0061] The inner wall of the upper mold 112 is slidably connected to the outer wall of the support frame 13.

[0062] The pressurization mechanism 1 includes:

[0063] The outer wall of the pressurizing component 11 is fixedly connected to the outer wall of the feeding support plate 113;

[0064] Push component 12, the outer wall of push component 12 is fixedly connected to the outer wall of pressurization component 11.

[0065] Restricted agency 2 includes:

[0066] The outer wall of the limiting component 21 is fixedly connected to the inner wall of the pressurizing component 11;

[0067] Trigger component 22, the outer wall of trigger component 22 is fixedly connected to the inner wall of lower mold 111.

[0068] Bridge breaking mechanism 3 includes:

[0069] The bridge breaking component 31 is rotatably connected to the inner wall of the trigger component 22 at its outer wall.

[0070] The outer wall of the dispersion component 32 is fixedly connected to the outer wall of the trigger component 22.

[0071] The pressurization assembly 11 includes two hydraulic cylinders 114 fixedly connected to the outer wall of the feeding support plate 113. A push plate 115 is fixedly connected to the outer wall of the two hydraulic cylinders 114, and a connecting plate 116 is fixedly connected to the outer wall of the push plate 115.

[0072] In actual processing, in order to maintain the density and structural integrity of the blank, a certain proportion of material needs to overflow from the mold cavity when feeding the lower mold 111, so as to ensure that the mold cavity is fully filled and avoid the blank shape being incomplete. During the operation of the device, the hydraulic cylinder 114 drives the push plate 115 and the connecting plate 116 to move towards the lower mold 111. When it moves to a certain position, it begins to feed material into the mold cavity of the lower mold 111. After the feeding is completed, the hydraulic cylinder 114 drives the push plate 115 and the connecting plate 116 away from and retract to the initial position. During this process, the push plate 115 will bring the overflowing excess material back to the feeding support plate 113, which increases the cleaning work and wastes raw materials.

[0073] The pushing component 12 includes a connecting shaft 121 fixedly connected to the outer wall of the connecting plate 116, a rotating plate 122 rotatably connected to the outer wall of the connecting shaft 121, and two torsion springs 123 sleeved on the outer wall of the connecting shaft 121.

[0074] When the device starts operating, the hydraulic cylinder 114 drives the push plate 115 and the connecting plate 116 to move towards the lower mold 111. After moving to a certain position, it begins to feed material into the mold cavity of the lower mold 111. After the material feeding is completed, the hydraulic cylinder 114 drives the push plate 115 and the connecting plate 116 back to the initial position. At this time, a certain amount of powder will be brought back from the outer wall of the push plate 115 near the hydraulic cylinder 114. Under the action of the hydraulic device 14, the lower mold 111 and the upper mold 112... After the powder is pressurized, the lifting device 15 will push the pressurized initial blank out of the mold cavity of the lower mold 111. At this time, the hydraulic cylinder 114 will drive the push plate 115 and the connecting plate 116 to move towards the lower mold 111. During this process, the rotating plate 122 will drive the powder behind the push plate 115 to move together until it enters the mold cavity of the lower mold 111. At the same time, the push plate 115 located in front of the rotating plate 122 will push out the ejected blank, thereby completing the processing of the powder.

[0075] One end of the torsion spring 123 is fixedly connected to the inner wall of the connecting plate 116 at its outer wall, and the end of the torsion spring 123 away from the connecting plate 116 is fixedly connected to the inner wall of the rotating plate 122 at its outer wall.

[0076] The limiting component 21 includes two limiting springs 211 fixedly connected to the inner wall of the connecting plate 116, and a limiting ball 212 fixedly connected to the outer wall of the two limiting springs 211 away from the connecting plate 116. Two ball-loaded reset plates 213 are fixedly connected to the outer wall of the two hydraulic cylinders 114.

[0077] Furthermore, when the rotating plate 122 passes the cavity of the lower mold 111 and contacts the trigger ball 222 on the lower mold 111, the interaction force between the rotating plate 122 and the trigger ball 222 after continued movement will cause the rotating plate 122 to break through the restriction ball 212 and the restriction spring 211, causing it to rotate around the connecting shaft 121 towards the connecting plate 116 under the action of the torsion spring 123. At the same time, the potential energy accumulated by the torsion spring 123 is released. As the initial blank is pushed out, the hydraulic cylinder 114 will drive the push plate 115 and the connecting plate 116 back to the initial state. During this process, when the rotating plate 122 contacts the ball-loaded reset plate 213 set on the hydraulic cylinder 114, the rotating plate 122 will be on the ball-loaded reset plate 213. Under the action of 13, it begins to rotate around the connecting shaft 121 in the direction of the push plate 115 until the push plate 115 is reset. Then, the rotating plate 122 will rotate to the initial state under the action of the ball-loaded reset plate 213. The limiting ball 212 will continue to restrict the rotating plate 122 under the action of the limiting spring 211. At the same time, the torsion spring 123 accumulates potential energy. Through this motion mechanism, after the blank is pressurized, the rotating plate 122 will carry the powder remaining after the push plate 115 into the mold cavity of the lower mold 111. During the process of returning to the initial state, the rotating plate 122 rotates at a certain angle so that it will not affect the overflowing powder. This cycle can continue to work, so that the powder brought back by the push plate 115 can be reused, improving the powder utilization rate and reducing the amount of cleaning work.

[0078] The outer walls of the two limiting balls 212 are slidably connected to the inner wall of the connecting plate 116.

[0079] The trigger assembly 22 includes two trigger springs 221 fixedly connected to the inner wall of the lower mold 111, trigger balls 222 fixedly connected to the outer wall of the two trigger springs 221 away from the lower mold 111, and a hopper 223 fixedly connected to the outer wall of the connecting plate 116.

[0080] When the device is not running, the trigger ball 222 is restricted by the limiting spring 211 and the limiting ball 212, keeping it roughly parallel to the push plate 115. At this time, the torsion springs 123 located on both sides of the connecting shaft 121 are twisted by the rotating plate 122, thereby accumulating a certain amount of potential energy.

[0081] The bridge breaking assembly 31 includes a rotating shaft 311 rotatably connected to the inner wall of the hopper 223, a number of connecting rods 312 fixedly connected to the outer walls of both ends of the rotating shaft 311, and a number of fixing rods 313 fixedly connected to the outer walls of the two hydraulic cylinders 114.

[0082] In actual operation, because the alumina ceramic powder is stored in the hopper 223, and the alumina ceramic powder itself has poor flowability and is prone to agglomeration, bridging is likely to occur at the discharge port of the hopper 223, making it impossible to feed material into the mold cavity of the lower mold 111. At this time, a rotating shaft 311 is set in the hopper 223, and several connecting rods 312 are evenly arranged at both ends of the rotating shaft 311, with the connecting rods 312 on both sides being staggered. When the hydraulic cylinder 114 drives the push plate 115 and the connecting plate 116 towards the lower mold 111... During the movement, the connecting rods 312 on both sides will contact the fixed rods 313 set on the hydraulic cylinder 114 one by one. Each time the fixed rod 313 is contacted, the rotating shaft 311 will rotate at a certain angle. The rotation of the rotating shaft 311 will cause the connecting rod set on it to stir the powder in the hopper 223. This breaks the bridging formed by the interaction of powder in the hopper 223, thereby reducing the blockage caused by the bridging phenomenon formed by the interaction of powder, which is more conducive to feeding the mold cavity of the lower mold 111.

[0083] The dispersion component 32 includes a plurality of dispersion connecting balls 321 fixedly connected to the inner wall of the connecting plate 116, and a plurality of slots 322 are provided on the outer wall of the plurality of dispersion connecting balls 321.

[0084] When feeding material into the lower mold 111, due to the difference in particle size between the powders, stratification and segregation will occur during the falling process. Large powder particles, due to their greater gravity and faster falling speed, tend to concentrate at the bottom of the mold cavity of the lower mold 111, while small powder particles will be carried to the edge of the mold cavity. This results in uneven particle distribution inside the formed blank, leading to a decrease in the quality of the blank. At this time, a dispersing component 32 is provided at the discharge port of the hopper 223. When the discharge port in the hopper 223 is opened, the powder begins to flow from the hopper 223 into the mold cavity of the lower mold 111 through the discharge port. When the powder flows through the dispersing connecting ball 321, the slightly larger particles will first contact the groove 322 on the dispersing connecting ball 321 and flow down to the lower mold 111 along the groove 322. Furthermore, due to the effect of the groove 322, the flow speed is slowed down to a certain extent, thereby reducing the difference in falling speed between large and small particles to a certain extent, reducing the phenomenon of stratification and segregation, and maintaining a certain uniformity of the blank particles.

[0085] Using the operating mechanism of the above-mentioned mechanism, when feeding material into the cavity of the lower mold 111, a phenomenon of accumulation with a high center and low periphery will occur. This height difference will cause the cavity to be filled too densely or loosely in some areas, resulting in an uneven structure of the blank. At the same time, the height difference will cause the powder to flow from the high point to the low point around the periphery, resulting in uneven particle distribution. At this time, the dispersing connecting ball 321 divides the discharge port of the hopper 223 into multiple discharge ports. This allows the powder to fall into the lower mold 111 at multiple points. Furthermore, through the diversion of the dispersing connecting ball 321, the accumulation difference of the powder at the bottom of the cavity of the lower mold 111 is reduced. The reduction of the height difference can reduce the flow of the powder falling into the cavity to the periphery of the cavity, thus reducing its impact on the quality of the blank.

[0086] One specific application of this embodiment is as follows: When in use, first place this device in the appropriate position, feed powder into the working chamber of this device through the device in the previous process, then process the powder through this device so that the powder is processed into the required initial blank, and finally input into the next process.

[0087] In actual processing, to maintain the density and structural integrity of the blank, a certain proportion of material needs to overflow from the mold cavity when feeding the lower mold 111, thus ensuring complete filling of the mold cavity and avoiding defects in the blank shape. During the operation of the device, the hydraulic cylinder 114 drives the push plate 115 and the connecting plate 116 to move towards the lower mold 111. After moving to a certain position, it begins to feed material into the mold cavity of the lower mold 111. After the feeding is completed, the hydraulic cylinder 114 drives the push plate 115 and the connecting plate 116 away from and retract to the initial position. During this process, the push plate 115 will bring the overflowing excess material back to the feeding support plate 113, resulting in increased cleaning work and waste of raw materials. At this time, when the device is not running, due to the trigger ball 22 2 will be restricted by the limiting spring 211 and the limiting ball 212, keeping it roughly parallel to the push plate 115. At this time, the torsion springs 123 on both sides of the connecting shaft 121 are twisted by the rotating plate 122, thereby accumulating a certain potential energy. When the device starts to run, the hydraulic cylinder 114 drives the push plate 115 and the connecting plate 116 to move towards the lower mold 111. After moving to a certain position, it begins to feed material into the mold cavity of the lower mold 111. After the material is fed, the hydraulic cylinder 114 drives the push plate 115 and the connecting plate 116 back to the initial position. At this time, a certain amount of powder will be brought back from the outer wall of the push plate 115 near the hydraulic cylinder 114. The lower mold 111 and the upper mold 112 complete the alignment under the action of the hydraulic device 14. After the powder is pressurized, the lifting device 15 will push the pressurized initial blank out of the mold cavity of the lower mold 111. At this time, the hydraulic cylinder 114 will drive the push plate 115 and the connecting plate 116 to move towards the lower mold 111. During this process, the rotating plate 122 will move the powder behind the push plate 115 together until it enters the mold cavity of the lower mold 111. At the same time, the push plate 115 in front of the rotating plate 122 will push out the ejected blank, thus completing the processing of the powder. Furthermore, when the rotating plate 122 passes the mold cavity of the lower mold 111 and contacts the trigger ball 222 on the lower mold 111, the interaction force between the rotating plate 122 and the trigger ball 222 will cause the rotating plate 122 to break through the limiting ball 212 and the limiting spring. The constraint 211 causes the rotating plate 122 to rotate a certain angle around the connecting shaft 121 toward the connecting plate 116 under the action of the torsion spring 123. Simultaneously, the potential energy stored in the torsion spring 123 is released. As the initial blank is pushed out, the hydraulic cylinder 114 drives the push plate 115 and the connecting plate 116 back to their initial state. During this process, when the rotating plate 122 contacts the ball-loaded reset plate 213 mounted on the hydraulic cylinder 114, the rotating plate 122 will begin to rotate around the connecting shaft 121 toward the push plate 115 under the action of the ball-loaded reset plate 213. This rotation continues until the push plate 115 is reset, at which point the rotating plate 122 will rotate back to its initial state under the action of the ball-loaded reset plate 213. The constraint ball 212 will continue to constrain the rotating plate 122 under the action of the constraint spring 211.Simultaneously, the torsion spring 123 accumulates potential energy. Through this motion mechanism, after the billet is pressurized, the rotating plate 122 carries the powder remaining behind the push plate 115 into the mold cavity of the lower mold 111. During the return to the initial state, the rotating plate 122 rotates at a certain angle so as not to affect the overflowing powder. This cycle continues, allowing the powder brought back by the push plate 115 to be reused, improving powder utilization and reducing cleaning workload.

[0088] In actual operation, because the alumina ceramic powder is stored in the hopper 223, and the alumina ceramic powder itself has poor flowability and is prone to agglomeration, bridging is likely to occur at the discharge port of the hopper 223, making it impossible to feed material into the mold cavity of the lower mold 111. At this time, a rotating shaft 311 is set in the hopper 223, and several connecting rods 312 are evenly arranged at both ends of the rotating shaft 311, with the connecting rods 312 on both sides being staggered. When the hydraulic cylinder 114 drives the push plate 115 and the connecting plate 116 towards the lower mold 111... During the movement, the connecting rods 312 on both sides will contact the fixed rods 313 set on the hydraulic cylinder 114 one by one. Each time the fixed rod 313 is contacted, the rotating shaft 311 will rotate at a certain angle. The rotation of the rotating shaft 311 will cause the connecting rod set on it to stir the powder in the hopper 223. This breaks the bridging formed by the interaction of powder in the hopper 223, thereby reducing the blockage caused by the bridging phenomenon formed by the interaction of powder, which is more conducive to feeding the mold cavity of the lower mold 111.

[0089] When feeding material into the lower mold 111, due to the difference in particle size between the powders, stratification and segregation will occur during the falling process. Large powder particles, due to their greater gravity and faster falling speed, tend to concentrate at the bottom of the mold cavity of the lower mold 111, while small powder particles will be carried to the edge of the mold cavity. This results in uneven particle distribution inside the formed blank, leading to a decrease in the quality of the blank. At this time, a dispersing component 32 is provided at the discharge port of the hopper 223. When the discharge port in the hopper 223 is opened, the powder begins to flow from the hopper 223 into the mold cavity of the lower mold 111 through the discharge port. When the powder flows through the dispersing connecting ball 321, the slightly larger particles will first contact the groove 322 on the dispersing connecting ball 321 and flow down to the lower mold 111 along the groove 322. Furthermore, due to the effect of the groove 322, the flow speed is slowed down to a certain extent, thereby reducing the difference in falling speed between large and small particles to a certain extent, reducing the phenomenon of stratification and segregation, and maintaining a certain uniformity of the blank particles.

[0090] Using the operating mechanism of the above-mentioned mechanism, when feeding material into the cavity of the lower mold 111, a phenomenon of accumulation with a high center and low periphery will occur. This height difference will cause the cavity to be filled too densely or loosely in some areas, resulting in an uneven structure of the blank. At the same time, the height difference will cause the powder to flow from the high point to the low point around the periphery, resulting in uneven particle distribution. At this time, the dispersing connecting ball 321 divides the discharge port of the hopper 223 into multiple discharge ports. This allows the powder to fall into the lower mold 111 at multiple points. Furthermore, through the diversion of the dispersing connecting ball 321, the accumulation difference of the powder at the bottom of the cavity of the lower mold 111 is reduced. The reduction of the height difference can reduce the flow of the powder falling into the cavity to the periphery of the cavity, thus reducing its impact on the quality of the blank.

[0091] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A pressure mechanism for a powder forming machine of a ceramic filter for alumina ceramic processing, comprising a support frame (13), wherein two hydraulic devices (14) are fixedly connected to the outer wall of the support frame (13), and a lifting device (15) is fixedly connected to the outer wall of the support frame (13), characterized in that, Also includes: A pressurizing mechanism (1) is fixedly connected to the outer wall of a support frame (13) at its outer wall. The pressurizing mechanism (1) is used to pressurize powder. A limiting mechanism (2) is fixedly connected to the inner wall of the pressurizing mechanism (1) at its outer wall. The limiting mechanism (2) is used to limit a part of the pressurizing mechanism (1). The bridging mechanism (3) is rotatably connected to the inner wall of the limiting mechanism (2) at its outer wall. The bridging mechanism (3) is used to reduce the bridging effect of powder materials. The lower mold (111) is fixedly connected to the outer wall of the support frame (13), the upper mold (112) is fixedly connected to the outer wall of the two hydraulic devices (14), and the feeding support plate (113) is fixedly connected to the outer wall of the support frame (13). The inner wall of the upper mold (112) is slidably connected to the outer wall of the support frame (13); The limiting mechanism (2) includes: A limiting component (21) is fixedly connected at its outer wall to the inner wall of the pressurizing component (11); Trigger component (22), the outer wall of which is fixedly connected to the inner wall of the lower mold (111); The bridge-breaking mechanism (3) includes: A bridge-breaking assembly (31) is rotatably connected at its outer wall to the inner wall of a trigger assembly (22); A dispersion component (32) is fixedly connected to the outer wall of a trigger component (22); The limiting component (21) includes two limiting springs (211) fixedly connected to the inner wall of the connecting plate (116), and a limiting ball (212) fixedly connected to the outer wall of the two limiting springs (211) away from the connecting plate (116). Two ball-loaded reset plates (213) are fixedly connected to the outer wall of the two hydraulic cylinders (114). The outer walls of the two limiting balls (212) are slidably connected to the inner wall of the connecting plate (116); The trigger assembly (22) includes two trigger springs (221) fixedly connected to the inner wall of the lower mold (111), and trigger balls (222) fixedly connected to the outer wall of the two trigger springs (221) away from the lower mold (111). A hopper (223) is fixedly connected to the outer wall of the connecting plate (116). The bridge breaking assembly (31) includes a rotating shaft (311) rotatably connected to the inner wall of the hopper (223), and several connecting rods (312) are fixedly connected to the outer walls at both ends of the rotating shaft (311), and several fixing rods (313) are fixedly connected to the outer walls of the two hydraulic cylinders (114). The dispersion component (32) includes a plurality of dispersion connecting balls (321) fixedly connected to the inner wall of the connecting plate (116), and a plurality of slots (322) are provided on the outer wall of the plurality of dispersion connecting balls (321).

2. The pressure mechanism of the powder forming machine for alumina ceramic filter processing according to claim 1, characterized in that: The pressurization mechanism (1) includes: A pressurizing assembly (11) is fixedly connected to the outer wall of a feeding support plate (113) at its outer wall. The outer wall of the pushing component (12) is fixedly connected to the outer wall of the pressurizing component (11).

3. The powder forming machine pressurizing mechanism for alumina ceramic filter processing according to claim 2, characterized in that: The pressurization assembly (11) includes two hydraulic cylinders (114) fixedly connected to the outer wall of the feeding support plate (113), and a push plate (115) fixedly connected to the outer wall of the two hydraulic cylinders (114), and a connecting plate (116) fixedly connected to the outer wall of the push plate (115).

4. The pressure mechanism of the powder forming machine for alumina ceramic filter processing according to claim 3, characterized in that: The pushing assembly (12) includes a connecting shaft (121) fixedly connected to the outer wall of the connecting plate (116), a rotating plate (122) rotatably connected to the outer wall of the connecting shaft (121), and two torsion springs (123) sleeved on the outer wall of the connecting shaft (121). One end of the torsion spring (123) is fixedly connected to the inner wall of the connecting plate (116), and the outer wall of the end of the torsion spring (123) away from the connecting plate (116) is fixedly connected to the inner wall of the rotating plate (122).

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