Rotary continuous production equipment for piezoelectric ceramics

Abstract

The invention discloses rotary continuous production equipment for piezoelectric ceramics, and relates to the technical field of piezoelectric ceramic production, the rotary continuous production equipment comprises a fixed base, an electric turntable is mounted in the middle of the fixed base, the top end of the electric turntable is connected with a rotating platform, and telescopic pressing mold mechanisms are mounted on the outer ring of the rotating platform in an equal-angle embedding manner; supporting plates are fixedly mounted at the left end and the right end of the fixed base, hydraulic cylinders are mounted at the tops of the left ends of the supporting plates, a fixed plate is fixedly connected to the bottom ends of the hydraulic cylinders, and an extrusion mold is mounted at the bottom of the fixed plate. The problems that leaked powder cannot be recycled, and follow-up forming is affected due to the fact that powder adheres to the bottom face of the extrusion die are effectively solved, the material saving effect, the environmental protection performance, the using effect and the forming effect are remarkably improved, meanwhile, multi-station production is achieved through rotation switching operation procedures of the rotating platform, and the production continuity is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of piezoelectric ceramic production, in particular to a rotary continuous production equipment for piezoelectric ceramics. BACKGROUND

[0002] As an important functional material, piezoelectric ceramics have a wide range of applications in electronics, communications, medical treatment, aerospace and many other fields. Piezoelectric ceramics have excellent piezoelectric effect and can realize efficient conversion between electric energy and mechanical energy, and thus are used for manufacturing key electronic components such as sensors, drivers and filters. With the increasing demand for piezoelectric ceramic elements in various application fields, higher requirements are put forward for the production efficiency and quality of piezoelectric ceramics. Traditional piezoelectric ceramic production equipment has many problems in the production process. For example, some existing production equipment has low automation degree, and many processes need manual operation, which not only leads to low production efficiency, but also makes it difficult to ensure the consistency of product quality due to human factors. Therefore, a rotary continuous production equipment is needed to improve the production efficiency and product quality of piezoelectric ceramics.

[0003] However, the existing piezoelectric ceramic production equipment still has some defects in use. For example, the production and forming device for piezoelectric ceramic sheets disclosed in the application No. CN202322929257.2 aims to conveniently adjust and replace, and automatically process to improve production efficiency. The device comprises a mounting frame, a containing plate and a fixed plate. The containing plate is arranged on one side of the center of the mounting frame, and the bottom of the containing plate is provided with a supporting assembly. The bottom of the supporting assembly is provided with a fixed plate. A plurality of extrusion pipes are arranged around the inside of the containing plate. A processing plate is arranged on one side of the mounting frame near the top end of the containing plate. An extrusion rod is arranged through the side of the processing plate near the mounting frame. The supporting assembly for supporting comprises a lifting rod and a supporting plate, and the top extending end of the lifting rod is connected with the supporting plate. The device has the advantages of convenient adjustment, automatic processing and extrusion, no manual operation and improved efficiency. However, the following problems still exist in the actual use process. During the process of pressing and forming the piezoelectric ceramic raw material powder, a small amount of powder will leak out from the gap between the extrusion cap and the extrusion pipe. The production and forming device for piezoelectric ceramic sheets does not have a collection structure for the leaked powder, so the leaked powder cannot be reused, thereby reducing the material saving effect and environmental protection performance. When the powder in the extrusion tube is extruded by the extrusion cap, a small amount of powder is inevitably adhered to the bottom surface of the extrusion cap when the extrusion cap is lifted, and the powder is stubbornly adhered to the bottom of the extrusion cap and is difficult to remove due to extrusion, thereby affecting the subsequent extrusion molding work, and reducing the use effect and molding effect.

[0004] In view of this, in view of the above problems, in-depth research, and then the case occurs.

[0005] In view of the above problems, the original rotary continuous production equipment for piezoelectric ceramics is innovatively designed. SUMMARY

[0006] The purpose of the present application is to provide a rotary continuous production equipment for piezoelectric ceramics to solve the problem that the powder leaks from the gap between the extrusion cap and the extrusion tube during the pressing molding process, and there is no collection structure, which leads to the problem that the powder cannot be reused, the powder is stubbornly adhered to the bottom surface of the extrusion cap when the extrusion cap is lifted, which affects the subsequent molding, and reduces the material saving effect, environmental protection performance, use effect and molding effect.

[0007] To achieve the above purpose, the present application provides the following technical scheme: a rotary continuous production equipment for piezoelectric ceramics, comprising a fixed base, a motorized turntable is installed in the middle of the fixed base, a rotating platform is connected to the top end of the motorized turntable, a telescopic compression mold mechanism is embedded and installed at equal angles on the outer circle of the rotating platform, and the telescopic compression mold mechanism is used for extruding piezoelectric ceramics; The left and right ends of the fixed base are fixedly installed with support plates, a hydraulic cylinder is installed at the top of the left end of the support plate, a fixed plate is fixedly connected to the bottom end of the hydraulic cylinder, and an extrusion die is installed at the bottom of the fixed plate; The top surface of the support plate is fixedly installed with an electric push rod in the middle, and the rear end of the electric push rod is fixedly connected with a pushing plate; The top of the support plate is fixedly installed with a positioning suction mechanism; The left end of the support plate is installed with a sliding cleaning mechanism for cleaning the adherents at the bottom end of the extrusion die; The sliding cleaning mechanism and the positioning suction mechanism are linked to realize the recycling of piezoelectric ceramic raw materials.

[0008] Preferably, the telescopic compression mold mechanism comprises a fixed mold equiangularly embedded in the inner part of the outer circle of the rotating platform, the inner part of the fixed mold is provided with a forming cavity, the bottom of the forming cavity is slidably penetrated by a lifting rod, the top end of the lifting rod is fixedly connected with an ejection block, the ejection block is slidably connected with the forming cavity, the bottom end of the lifting rod is fixedly connected with a connecting frame, the outer circle of the lifting rod between the connecting frame and the bottom surface of the fixed mold is sleeved with a return spring, and the connecting frame and the lifting rod constitute a telescopic return structure with the fixed mold.

[0009] Preferably, the telescopic compression mold mechanism further comprises a limiting seat fixedly installed on the outer side of the connecting frame, a roller is rotatably installed in the inner part of the limiting seat, a supporting ring seat is fixedly installed on the top of the outer circle of the fixed base, a guide seat is fixedly installed on the top surface of the rear end of the supporting ring seat, the guide seat is provided in a trapezoidal structure, and the supporting ring seat and the guide seat provide support for the rolling of the roller.

[0010] By the elastic force of the return spring, the ejection block can be automatically returned to the bottom of the forming cavity when the lifting rod and the connecting frame are not subjected to external force, thereby providing a stable initial state for the filling and compression molding of the piezoelectric ceramic raw material next time, and when the piezoelectric ceramic sheet after molding needs to be ejected, only an upward external force needs to be applied to the connecting frame to drive the ejection block to rise and eject the product, thereby achieving convenient demolding and improving the continuity and efficiency of production. When the rotating platform drives the telescopic compression mold mechanism to rotate, the roller rolls on the supporting ring seat, so that the ejection block is kept at the bottom of the forming cavity, thereby ensuring the smooth compression molding, and when the roller rolls to the guide seat, the trapezoidal guide seat lifts the roller, the ejection block is driven to rise by the connecting frame and the lifting rod, and the ejection and demolding of the piezoelectric ceramic sheet are automatically completed without the need for an additional driving device, thereby realizing the synchronous linkage of the demolding process and the rotating motion and improving the degree of production automation.

[0011] Preferably, the pushing plate is provided in a "U" shape structure, and the bottom surface of the pushing plate is slidably connected with the top surface of the fixed mold.

[0012] By the above technical solution, the pushing plate in a "U" shape structure can adapt to the shape of the fixed mold, and under the pushing of the electric push rod, the bottom surface of the pushing plate is slidably connected with the top surface of the fixed mold, so that the piezoelectric ceramic sheet after ejection can be stably pushed to a specified position, thereby avoiding the cumbersome manual material taking and preventing the piezoelectric ceramic sheet from falling during the pushing process, and ensuring the smooth progress of the subsequent process.

[0013] Preferably, the positioning and sucking mechanism comprises a positioning seat fixedly installed on the top surface of the supporting plate, the positioning seat is provided with two groups, a sucking pipe is connected through the inner circle of the positioning seat, and a suction seat is fixedly connected to the sucking end of the sucking pipe.

[0014] Preferably, the positioning and sucking mechanism further comprises a telescopic pipe fixedly installed at the bottom of the right end of the sucking pipe, the telescopic pipe is in through sliding connection with the top of the supporting plate, the bottom end of the telescopic pipe is fixedly connected with a dust suction pipe, the bottom end of the dust suction pipe is fixedly installed with a matching scraper, the outer circle of the matching scraper is in line with the size of the size of the forming cavity, the inner circle of the matching scraper is in conical structure, the top outer circle of the dust suction pipe is fixedly sleeved with a positioning plate, the left side of the positioning plate is fixedly installed with a linkage plate, the left side of the linkage plate is fixedly connected with the fixed plate, the top surface of the linkage plate is fixedly installed with a limiting column, and the limiting column is in through sliding connection with the top of the supporting plate.

[0015] By adopting the technical scheme, when the hydraulic cylinder drives the fixed plate and the extrusion die to descend for pressing forming, the linkage plate drives the positioning plate, the dust suction pipe and the matching scraper to descend synchronously, the matching scraper is matched with the forming cavity, the powder on the inner wall of the forming cavity can be scraped, the inner circle of the conical structure facilitates the concentration of the powder, and the dust suction pipe, the telescopic pipe and the sucking pipe can effectively collect the leaked powder; The absorbing seat is between the pressing and demolding processes, the leaked powder in the area can be absorbed, the powder is recycled, the material saving effect and the environmental protection performance are improved, in addition, the limiting column ensures the stability of the linkage process, and the positioning seat ensures the position accuracy of the sucking pipe.

[0016] Preferably, the sliding cleaning mechanism comprises fixed rails symmetrically installed on the left side of the supporting plate, the fixed rails are internally and slidably installed with sliding rails, the top of the sliding rails is fixedly connected with a sucking box, the left end top surface of the sucking box is symmetrically installed with connecting hoses, the top ends of the connecting hoses are fixedly connected with a flow collecting pipe, the flow collecting pipe is fixedly connected with the top surface of the supporting plate through a mounting seat, and the discharge end of the flow collecting pipe is connected with the sucking pipe.

[0017] Preferably, the sucking box is in "U"-shaped hollow structure, the right end of the sucking box is in open structure, and the rear end top surface of the sucking box is horizontally arranged with the top surface of the extrusion die.

[0018] Preferably, the sliding cleaning mechanism further comprises a movable toothed plate fixedly installed at the inner side of the rear end of the sucking box, the front side of the movable toothed plate is meshingly connected with a driving gear, the center of the driving gear is connected with a servo motor, the servo motor is fixedly connected with the left side vertical surface of the supporting plate through a mounting bracket, and when the servo motor drives the driving gear to rotate, the movable toothed plate and the sucking box are driven to slide.

[0019] Adopting the technical scheme, the servo motor drives the driving gear to rotate, the driving gear meshes with the movable toothed plate to drive the suction box to slide along the fixed track, the suction box with the U-shaped hollow structure and the open right end has the top surface horizontal with the top surface of the extrusion die, the suction box can scrape and collect the stubborn powder adhered to the bottom surface of the extrusion die in the sliding process, the powder is transported to the suction pipe through the connecting hose and the flow collecting pipe, and linkage recovery with the positioning and suction mechanism is realized, the structure effectively removes the attachments on the bottom surface of the extrusion die, avoids the influence on the subsequent forming work, improves the use effect and the forming effect, and further improves the powder recycling rate.

[0020] Preferably, the supporting ring seat top surfaces at both ends of the guide seat are equally spaced and provided with fixed teeth.

[0021] Adopting the technical scheme, the fixed teeth in the right-angled triangle structure can vibrate the roller, when the roller rolls on the supporting ring seat and passes through the fixed teeth, the roller is prevented from lifting and rapidly descending with the fixed teeth, and vibration is transmitted to the connecting frame, the lifting rod and the ejector block, so that the ejector block can loosen the stubborn powder adhered to the top surface in the vibration process, the loosened powder is better absorbed and cleaned by the dust suction pipe, and the cleaning effect and the subsequent forming effect are improved.

[0022] Compared with the prior art, the rotary continuous production equipment for piezoelectric ceramics has the advantages that: through the cooperation of various mechanisms, the problems of powder leakage and the influence of powder adhered to the bottom surface of the extrusion die on subsequent forming are effectively solved, the material saving effect, the environmental protection performance, the use effect and the forming effect are significantly improved, multi-station production is realized by rotating and switching the operation process of the rotating platform, the production continuity is improved, and specific contents are shown as follows: Under the elastic force of the reset spring, the lifting rod and the connecting frame can drive the ejector block to automatically reset to the bottom of the forming cavity when not subjected to external force, a stable initial state is provided for the next raw material filling and compression molding, only an upward external force needs to be applied to the connecting frame to eject the product during demolding, when the rotating platform drives the mechanism to rotate, the roller rolls on the supporting ring seat to keep the ejector block at the bottom position, ensuring smooth pressing, when the roller rolls to the trapezoidal guide seat, the guide seat lifts the roller, the ejector block is automatically lifted by the connecting frame and the lifting rod to complete demolding, no additional driving is needed, demolding and rotation are synchronized, and the automation degree is improved. When the hydraulic cylinder drives the extrusion die to descend, the linkage plate is driven to descend synchronously, the laminating scraper is laminated with the forming cavity, and the inner wall powder is scraped, the conical inner ring facilitates powder concentration, and the suction effect of the dust suction pipe, the telescopic pipe and the suction pipe effectively collects the leaked powder, the suction seat is located between the pressing and demolding processes, can absorb the leaked powder in the area, realizes powder recycling and reuse, improves the material saving effect and environmental protection performance; The "U"-shaped hollow and right-end-opened suction box top surface is horizontal with the extrusion die top surface, and when sliding, the stubborn powder adhered to the bottom surface of the extrusion die can be scraped off, avoiding affecting subsequent forming, improving use effect and forming quality, and the scraped powder is transported to the suction pipe through the connecting hose and the flow collecting pipe, and recycling is realized through linkage with the positioning suction mechanism, further improving the powder recycling rate; The right-angle triangle fixed teeth on the top surface of the supporting ring seat make the roller produce vibration of lifting and rapid descending when the roller rolls, and the vibration is transmitted to the connecting frame, the lifting rod and the ejector block, so that the stubborn powder adhered to the top surface of the ejector block is loosened, facilitating the dust suction pipe to absorb and clean, and improving the cleaning effect and subsequent forming effect. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a front side view appearance structure schematic diagram of the embodiment one of the application; Figure 2 It is a rear side view appearance structure schematic diagram of the embodiment one of the application; Figure 3 It is a telescopic die mechanism distribution structure schematic diagram in the embodiment one of the application; Figure 4 It is a telescopic die mechanism side section structure schematic diagram in the embodiment one of the application; Figure 5 It is a roller and guide seat contact structure schematic diagram in the embodiment one of the application; Figure 6 It is a positioning suction mechanism and sliding cleaning mechanism distribution structure schematic diagram of the application; Figure 7 It is a pushing plate and sliding cleaning mechanism distribution structure schematic diagram of the application; Figure 8 It is a sliding cleaning mechanism side view structure schematic diagram of the application; Figure 9 It is a positioning suction mechanism side section structure schematic diagram of the application; Figure 10 It is a positioning suction mechanism and rotating platform distribution structure schematic diagram of the application; Figure 11 It is a fixed tooth distribution structure schematic diagram in the embodiment two of the application.

[0024] In the figure: 1, fixed base; 2, electric turntable; 3, rotating platform; 4, fixed mold; 5, forming cavity; 6, lifting rod; 7, ejection block; 8, connecting frame; 9, return spring; 10, limit seat; 11, roller; 12, supporting ring seat; 13, guide seat; 14, hydraulic cylinder; 15, fixed plate; 16, extrusion mold; 17, electric push rod; 18, pushing plate; 19, positioning seat; 20, suction pipe; 21, absorption seat; 22, telescopic pipe; 23, dust collection pipe; 24, matching scraper; 25, positioning plate; 26, linkage plate; 27, limit column; 28, fixed track; 29, sliding rail; 30, suction box; 31, connecting hose; 32, flow collecting pipe; 33, mounting seat; 34, movable toothed plate; 35, drive gear; 36, servo motor; 37, fixed tooth; 38, support plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only 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 of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0026] Please refer to Figure 1 Figure 10 The present application provides a technical solution: a rotary continuous production equipment for piezoelectric ceramics, comprising a fixed base 1, a motorized turntable 2 is installed in the middle of the fixed base 1, a rotating platform 3 is connected to the top end of the motorized turntable 2, a telescopic compression mold mechanism is embedded and installed at equal angles on the outer circle of the rotating platform 3, the telescopic compression mold mechanism is used for extrusion forming of piezoelectric ceramics, the telescopic compression mold mechanism comprises a fixed mold 4 embedded at equal angles in the inner circle of the rotating platform 3, a forming cavity 5 is formed in the inner part of the fixed mold 4, a lifting rod 6 is slidingly penetrated through the bottom of the forming cavity 5, an ejection block 7 is fixedly connected to the top end of the lifting rod 6, the ejection block 7 is slidingly connected with the forming cavity 5, a connecting frame 8 is fixedly connected to the bottom end of the lifting rod 6, a return spring 9 is sleeved on the outer circle of the lifting rod 6 between the connecting frame 8 and the bottom surface of the fixed mold 4, the connecting frame 8 and the lifting rod 6 constitute a telescopic reset structure with the fixed mold 4 through the return spring 9, the telescopic compression mold mechanism further comprises a limit seat 10 fixedly installed on the outer side of the connecting frame 8, a roller 11 is rotatably installed in the inner part of the limit seat 10, a supporting ring seat 12 is fixedly installed on the top of the outer circle of the fixed base 1, a guide seat 13 is fixedly installed on the top surface of the rear end of the supporting ring seat 12, the guide seat 13 is arranged in a trapezoidal structure, and the supporting ring seat 12 and the guide seat 13 provide support for the rolling of the roller 11; ​The design of the above structure, in normal state, the reset spring 9 is in natural extension state, the elastic force thereof acts on the lifting rod 6 through the connecting frame 8, drives the ejection block 7 to adhere and slide to the bottom of the forming cavity 5, so that the forming cavity 5 forms a complete closed space, and provides a stable initial mold structure for filling and pressing forming of the piezoelectric ceramic raw material; When the rotating platform 3 rotates under the driving of the electric rotating disc 2, the telescopic pressing mold mechanism rotates synchronously with the rotating platform 3, at this time, the rollers 11 outside the connecting frame 8 roll on the top surface of the supporting ring seat 12 of the outer circle of the fixed base 1, the supporting ring seat 12 supports the rollers 11, so that the ejection block 7 is kept at the bottom of the forming cavity 5, and it is ensured that the raw material can be accurately pressed and formed in the forming cavity 5 when the extrusion mold 16 is pressed down; When the rotating platform 3 drives the telescopic pressing mold mechanism to rotate to the demolding station, the rollers 11 roll to the guide seat 13 at the rear end of the supporting ring seat 12, because the guide seat 13 is in a trapezoidal structure, the height thereof gradually increases in the rotating direction, the rollers 11 are lifted upward under the action of the inclined surface of the guide seat 13, and then the connecting frame 8 and the lifting rod 6 are synchronously lifted upward through the limiting seat 10, the ejection block 7 at the top end of the lifting rod 6 slides upward along the inner wall of the forming cavity 5, the piezoelectric ceramic sheet after being pressed and formed is ejected from the forming cavity 5, automatic demolding is realized, and after the demolding is completed, the rotating platform 3 continues to rotate, the rollers 11 roll back to the supporting ring seat 12 from the guide seat 13, the elastic force of the reset spring 9 drives the lifting rod 6 and the ejection block 7 to reset again, and preparation is made for the next forming cycle.

[0027] The supporting plates 38 are fixedly installed at the left and right ends of the fixed base 1, the hydraulic cylinders 14 are installed at the top of the left end of the supporting plate 38, the fixed plates 15 are fixedly connected to the bottom ends of the hydraulic cylinders 14, the extrusion molds 16 are installed at the bottom of the fixed plates 15, the electric push rods 17 are fixedly installed on the top surface of the middle part of the supporting plate 38, and the material pushing plates 18 are fixedly connected to the rear ends of the electric push rods 17; The design of the above structure, when the telescopic pressing mold mechanism rotates to the pressing station with the rotating platform 3, the hydraulic cylinder 14 at the top of the left end of the supporting plate 38 is started, the output end thereof extends downward, drives the fixed plate 15 at the bottom end to synchronously descend, and then the extrusion mold 16 installed at the bottom of the fixed plate 15 accurately presses the forming cavity 5 of the telescopic pressing mold mechanism below, at this time, the piezoelectric ceramic raw material has been filled in the forming cavity 5, and the extrusion mold 16 applies pressure to the raw material under the driving force of the hydraulic cylinder 14, so that the raw material is pressed and formed in the forming cavity 5; After the compression molding is completed, the output end of the hydraulic cylinder 14 is retracted, driving the fixed plate 15 and the extrusion die 16 to reset upwards, and the telescopic compression die mechanism is separated from the telescopic compression die mechanism. Subsequently, the rotating platform 3 continues to rotate, conveying the completed compression molding to the demolding station, and completing demolding through the ejection structure of the telescopic compression die mechanism itself. The piezoelectric ceramic sheet after demolding is left on the top surface of the fixed die 4. When the fixed die 4 carrying the molded product rotates with the rotating platform 3 to the pushing station, the electric push rod 17 on the top surface of the middle of the support plate 38 is started, and the output end thereof is stretched backward, driving the pushing plate 18 connected at the rear end to slide along the top surface of the fixed die 4. Since the pushing plate 18 is in a "U" shaped structure, it can be adapted to the shape of the fixed die 4, thereby stably pushing the piezoelectric ceramic sheet on the top surface to the specified collection or next process position, realizing automatic transfer of the molded product, avoiding manual intervention, and ensuring the continuity of production.

[0028] A positioning suction mechanism is fixedly installed on the top of the support plate 38. The positioning suction mechanism comprises two sets of positioning seats 19 fixedly installed on the top surface of the support plate 38. The inner circle of the positioning seat 19 is connected with a suction pipe 20. The suction end of the suction pipe 20 is fixedly connected with a suction seat 21. The suction seat 21 is between the compression process and the demolding process. The positioning suction mechanism further comprises a telescopic pipe 22 fixedly installed at the bottom of the right end of the suction pipe 20. The telescopic pipe 22 is slidingly connected with the top of the support plate 38. The bottom end of the telescopic pipe 22 is fixedly connected with a dust suction pipe 23. The bottom end of the dust suction pipe 23 is fixedly installed with a matching scraper 24. The outer circle of the matching scraper 24 is consistent with the size of the molding cavity 5. The inner circle of the matching scraper 24 is in a tapered structure. The top outer circle of the dust suction pipe 23 is fixedly sleeved with a positioning plate 25. The left side of the positioning plate 25 is fixedly installed with a linkage plate 26. The left side of the linkage plate 26 is fixedly connected with the fixed plate 15. The top surface of the linkage plate 26 is fixedly installed with a limiting column 27. The limiting column 27 is slidingly connected with the top of the support plate 38. With the above structure, when the telescopic compression die mechanism rotates with the rotating platform 3 to the compression station, the hydraulic cylinder 14 drives the fixed plate 15 and the extrusion die 16 to descend for compression molding. At this time, the linkage plate 26 connected with the fixed plate 15 moves downward synchronously, driving the positioning plate 25, the dust suction pipe 23 and the matching scraper 24 at the bottom to move downward along the support plate 38. Since the outer circle of the matching scraper 24 is consistent with the size of the molding cavity 5, it will closely fit the inner wall of the molding cavity 5, and the powder adhered to the inner wall of the cavity will be scraped off during the descending process. The tapered structure of the inner circle of the matching scraper 24 guides the scraped powder to the center, facilitating collection. Meanwhile, the dust suction pipe 23 is communicated with the suction pipe 20 through the telescopic pipe 22, the suction pipe 20 is kept in a stable position under the fixing of the positioning seat 19, the suction force generated by the external connected negative pressure fan is transmitted to the adhering scraper 24 through the telescopic pipe 22 and the dust suction pipe 23, the concentrated powder is sucked and transported to the recycling device, in the process, the limiting column 27 on the top surface of the linkage plate 26 slides along the supporting plate 38, ensuring the verticality and stability of the whole downward movement process, avoiding the misalignment between the adhering scraper 24 and the forming cavity 5; When the compression molding is completed, the hydraulic cylinder 14 drives the fixed plate 15 and the extrusion die 16 to rise and reset, the linkage plate 26 synchronously drives the adhering scraper 24, the dust suction pipe 23 and the like to rise and separate from the forming cavity 5, the telescopic pipe 22 is contracted, and the whole suction assembly is reset to the initial position, in addition, the suction end of the suction pipe 20 is connected with the absorption seat 21, the absorption seat 21 is located in the area between the compression process and the demolding process, which can continuously suck the powder leaked or scattered at the connection between the two processes, further improving the powder recycling efficiency.

[0029] The left end of the supporting plate 38 is provided with a sliding cleaning mechanism for cleaning the attachments at the bottom end of the extrusion die 16, the sliding cleaning mechanism comprises fixed rails 28 symmetrically installed on the left side of the supporting plate 38, the inside of the fixed rail 28 is slidably provided with a sliding rail 29, the top of the sliding rail 29 is fixedly connected with a suction box 30, the suction box 30 is provided in a "U" hollow structure, the right end of the suction box 30 is provided in an open manner, the top surface of the rear end of the suction box 30 is horizontally provided with the top surface of the extrusion die 16, the top surface of the left end of the suction box 30 is symmetrically provided with a connecting hose 31, the top end of the connecting hose 31 is fixedly connected with a collecting pipe 32, the collecting pipe 32 is fixedly connected with the top surface of the supporting plate 38 through a mounting seat 33, the discharge end of the collecting pipe 32 is connected with the suction pipe 20, the sliding cleaning mechanism further comprises a movable toothed plate 34 fixedly installed on the inner side of the rear end of the suction box 30, the front side of the movable toothed plate 34 is engagedly connected with a drive gear 35, the center of the drive gear 35 is connected with a servo motor 36, the servo motor 36 is fixedly connected with the left side vertical surface of the supporting plate 38 through a mounting bracket, when the servo motor 36 drives the drive gear 35 to rotate, the movable toothed plate 34 and the suction box 30 are driven to slide; The design of the above structure is that when the extrusion die 16 completes the compression molding and is lifted to the highest point under the driving of the hydraulic cylinder 14, the servo motor 36 is started, the driving gear 35 is rotated clockwise, the movable toothed plate 34 drives the suction box 30 fixed thereto to slide forward along the fixed track 28, that is, to move to the direction of the extrusion die 16, at this time, the suction box 30 is communicated with the collecting pipe 32 through the connecting hose 31, and the discharge end of the collecting pipe 32 is connected to the suction pipe 20 of the positioning suction mechanism, so that the inside of the suction box 30 is in a negative pressure state, and the suction box 30 is driven by the external negative pressure device and the suction pipe 20 to slide forward along the slide rail 29 to the position directly below the extrusion die 16, because the rear end top surface of the suction box 30 is horizontally arranged with the top surface of the extrusion die 16, when the two are in contact, the open end surface of the suction box 30 is in contact with the bottom surface of the extrusion die 16, at this time, the stubbornly adhered powder on the bottom surface of the extrusion die 16 is stripped by the physical scraping action in the sliding process of the suction box 30, and the stripped powder is sucked into the suction box 30 through the open end under the internal negative pressure, and is sequentially transported to the external recovery device through the connecting hose 31, the collecting pipe 32 and the suction pipe 20; After cleaning, the servo motor 36 is reversed, the driving gear 35 drives the movable toothed plate 34 to make the suction box 30 slide backward along the fixed track 28 to reset to the initial position, in the whole process, the sliding of the suction box 30 and the lifting of the extrusion die 16 are time-synchronously realized through the control system, so that the cleaning is performed when the extrusion die 16 is lifted to the highest point and is in a non-working state, and the normal production process is avoided, wherein the sliding cleaning mechanism and the positioning suction mechanism share the same negative pressure source and recovery channel by connecting the collecting pipe 32 and the suction pipe 20, the integrated design of the powder recovery system is realized, the linkage simplifies the equipment structure, and the powder scattered on the bottom surface of the extrusion die 16 and the leaked powder in the molding cavity 5 are uniformly collected and treated, and the material utilization rate and the production environmental protection are further improved.

[0030] In the embodiment, the fixed teeth 37 are arranged on the top surface of the support ring seat 12 at the two ends of the guide seat 13. Figure 11 As shown in the technical scheme, the fixed teeth 37 are arranged on the top surface of the support ring seat 12 at the two ends of the guide seat 13, and the cross section of the fixed teeth 37 is in a right triangle structure. The design of the above structure, when the telescopic mold mechanism rotates with the rotating platform 3, the rollers 11 outside the connecting frame 8 roll on the top surface of the supporting ring seat 12, since the top surface of the supporting ring seat 12 at both ends of the guide seat 13 is installed with fixed teeth 37 with a right triangle cross section at equal intervals, the rollers 11 will be in contact with the inclined surface of the fixed teeth 37 in turn during rolling, when the rollers 11 press on the inclined surface of the fixed teeth 37, the rollers 11 are temporarily lifted up by the lifting effect of the inclined surface height, the ejector block 7 is driven to rise slightly by the connecting frame 8 and the lifting rod 6, then the rollers 11 roll off the right angle edge of the fixed teeth 37, and after losing support, the rollers 11 fall rapidly under the elastic force of the return spring 9, driving the ejector block 7 to descend slightly at the same time, the reciprocating action of “lifting-falling” makes the ejector block 7 produce micro-vibration, the vibration force shakes off the stubborn powder adhered to the top surface of the ejector block 7, the dropped powder is then sucked into the recovery by the dust suction pipe 23 or the absorption seat 21 of the positioning and suction mechanism, avoiding the influence of residual powder on the subsequent piezoelectric ceramic forming effect.

[0031] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0032] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A rotary continuous production device for piezoelectric ceramics, comprising a fixed base (1), a middle part of the fixed base (1) is provided with an electric rotating disc (2), a top end of the electric rotating disc (2) is connected with a rotating platform (3), characterized in that: The outer ring of the rotating platform (3) is embedded with a telescopic die mechanism at equal angles, which is used for the extrusion forming of piezoelectric ceramics. The left and right ends of the fixed base (1) are fixedly installed with support plates (38), the left end top of the support plate (38) is installed with a hydraulic cylinder (14), the bottom end of the hydraulic cylinder (14) is fixedly connected with a fixed plate (15), and the bottom of the fixed plate (15) is installed with an extrusion die (16). The top surface of the support plate (38) is fixedly installed with an electric push rod (17), and the rear end of the electric push rod (17) is fixedly connected with a pushing plate (18). The top of the support plate (38) is bolted with a positioning suction mechanism. The left end of the support plate (38) is installed with a sliding cleaning mechanism for cleaning the attachments at the bottom end of the extrusion die (16). The sliding cleaning mechanism and the positioning suction mechanism are linked to realize the recycling of piezoelectric ceramic raw materials.

2. A rotary continuous production apparatus for piezoelectric ceramics according to claim 1, characterized in that: The telescopic die mechanism includes a fixed die (4) embedded in the outer ring of the rotating platform (3) at equal angles, the inside of the fixed die (4) is provided with a forming cavity (5), the bottom of the forming cavity (5) is slidably penetrated by a lifting rod (6), the top end of the lifting rod (6) is fixedly connected with an ejection block (7), the ejection block (7) is slidably connected with the forming cavity (5), the bottom end of the lifting rod (6) is fixedly connected with a connecting frame (8), the outer ring of the lifting rod (6) between the connecting frame (8) and the bottom surface of the fixed die (4) is sleeved with a return spring (9), and the connecting frame (8) and the lifting rod (6) constitute a telescopic reset structure with the fixed die (4) through the return spring (9).

3. A rotary continuous production apparatus for piezoelectric ceramics according to claim 2, characterized in that: The telescopic die mechanism further includes a limiting seat (10) fixedly installed on the outer side of the connecting frame (8), the inside of the limiting seat (10) is rotatably installed with a roller (11), the outer ring top of the fixed base (1) is fixedly installed with a supporting ring seat (12), the rear end top surface of the supporting ring seat (12) is fixedly installed with a guide seat (13), the guide seat (13) is provided in a trapezoidal structure, and the supporting ring seat (12) and the guide seat (13) provide support for the rolling of the roller (11).

4. A rotary continuous production apparatus for piezoelectric ceramics according to claim 2, characterized in that: The pushing plate (18) is provided in a "U" shaped structure, and the bottom surface of the pushing plate (18) is slidably connected with the top surface of the fixed die (4).

5. A rotary continuous production apparatus for piezoelectric ceramics according to claim 2, characterized in that: The positioning suction mechanism includes a positioning seat (19) fixedly installed on the top surface of the support plate (38), the positioning seat (19) is provided with two groups, the inner ring of the positioning seat (19) is penetrated and connected with a suction pipe (20), the suction end of the suction pipe (20) is fixedly connected with a suction seat (21), and the suction seat (21) is between the pressing process and the demolding process.

6. A rotary continuous production apparatus for piezoelectric ceramics according to claim 5, characterized in that: The positioning suction mechanism further comprises a telescopic pipe (22) fixedly installed at the bottom of the right end of the suction pipe (20), the telescopic pipe (22) is in through sliding connection with the top of the supporting plate (38), the bottom end of the telescopic pipe (22) is fixedly connected with a dust suction pipe (23), the bottom end of the dust suction pipe (23) is fixedly installed with a close contact scraper (24), the outer circle size of the close contact scraper (24) is consistent with the size of the forming cavity (5), the inner circle of the close contact scraper (24) is in a tapered structure, the top outer circle of the dust suction pipe (23) is fixedly sleeved with a positioning plate (25), the left side of the positioning plate (25) is fixedly installed with a linkage plate (26), the left side of the linkage plate (26) is fixedly connected with the fixed plate (15), the top surface of the linkage plate (26) is fixedly installed with a limiting column (27), and the limiting column (27) is in through sliding connection with the top of the supporting plate (38).

7. A rotary continuous production apparatus for piezoelectric ceramics according to claim 5, characterized in that: The sliding cleaning mechanism comprises a fixed rail (28) symmetrically installed on the left side of the supporting plate (38), the inside of the fixed rail (28) is slidably installed with a sliding rail (29), the top of the sliding rail (29) is fixedly connected with a suction box (30), the left end top surface of the suction box (30) is symmetrically installed with a connecting hose (31), the top end of the connecting hose (31) is fixedly connected with a flow collecting pipe (32), the flow collecting pipe (32) is fixedly connected with the top surface of the supporting plate (38) through a mounting seat (33), and the discharge end of the flow collecting pipe (32) is connected with the suction pipe (20).

8. A rotary continuous production apparatus for piezoelectric ceramics according to claim 7, characterized in that: The suction box (30) is in a "U"-shaped hollow structure, the right end of the suction box (30) is in an open structure, and the rear end top surface of the suction box (30) is horizontally arranged with the top surface of the extrusion die (16).

9. A rotary continuous production apparatus for piezoelectric ceramics according to claim 8, characterized in that: The sliding cleaning mechanism further comprises a movable toothed plate (34) fixedly installed on the inner side of the rear end of the suction box (30), the front side of the movable toothed plate (34) is engagedly connected with a drive gear (35), the center of the drive gear (35) is connected with a servo motor (36), the servo motor (36) is fixedly connected with the left side vertical surface of the supporting plate (38) through a mounting bracket, and when the servo motor (36) drives the drive gear (35) to rotate, the movable toothed plate (34) and the suction box (30) are driven to slide.

10. A rotary continuous production apparatus for piezoelectric ceramics according to claim 3, characterized in that: The top surface of the supporting ring seat (12) at both ends of the guide seat (13) is installed with fixed teeth (37) at equal intervals, and the cross section of the fixed teeth (37) is in a right triangle structure.

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