Device and method for preparing enamel body

Abstract

The present invention discloses a device and method for preparing enamel blanks, and relates to the technical field of enamel blank preparation. A device for preparing enamel blanks comprises a chassis provided with two symmetrical loading and unloading ports, and an integrally formed mounting plate is provided in the chassis. The device also comprises: two sets of external forming modules symmetrically arranged in the chassis, wherein the external molds in the two sets of external forming modules are combined to form a complete formed outer shell; the present invention realizes the synchronous operation of "loading-processing-unloading" through the reciprocating movement of the double placement plates of the clay conveyor, eliminates the standby time of a single workstation, and improves the forming efficiency; the positioning pins and polygonal positioning holes are used to ensure the precise alignment of the clay socket and the expansion bladder, the weighing sensor detects the clay weight in real time to eliminate unqualified raw materials, and the pressure sensor monitors the expansion pressure to ensure quality, thereby solving the problems of blank size accuracy and unstable quality.

Description

Technical Field

[0001] The invention belongs to the technical field of enamel blank preparation, and in particular relates to a device for preparing enamel blanks. Background Art

[0002] Enamel products are widely used in daily life and industrial fields due to their corrosion resistance and beautiful appearance. In the preparation process of enamel blanks, blank forming is a key link, and its forming quality directly affects the final quality of enamel products.

[0003] At present, traditional enamel blank preparation devices mostly use split molds to extrude clay during the molding process, which has problems such as low molding efficiency, difficulty in ensuring the dimensional accuracy of the blank, and inconvenient mold cleaning and maintenance. At the same time, during the transportation and placement of the clay, the amount of clay cannot be accurately controlled, which easily leads to material waste and unstable blank quality. Therefore, there is an urgent need for an enamel blank preparation device that can improve molding efficiency and quality and facilitate mold handling and maintenance. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a device for preparing enamel blanks that can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A device for preparing enamel blanks comprises a chassis provided with two symmetrical loading and unloading ports, and an integrally formed mounting plate is provided in the chassis. The device also comprises: two groups of external forming modules symmetrically arranged in the chassis, the outer molds in the two groups of external forming modules being combined to form a complete formed outer shell; an internal forming module arranged at the top of the chassis, the inner forming module being provided with an expansion bladder extending into the interior of the formed outer shell and expanding; a clay conveyor fixedly mounted in the chassis and detachably provided with two groups of symmetrically arranged placement plates, when the placement plates transport clay with a socket provided in the center to the center position of the chassis, the two groups of external molds are combined to cover the clay, and then the expansion bladder is inserted into the socket and expands; when one of the placement plates moves to the center of the chassis, the other placement plate moves to the loading and unloading ports.

[0007] As a preferred embodiment of the present invention: the clay conveyor includes a guide rail fixedly installed on the top of the mounting plate and a first driving cylinder fixedly installed on the bottom of the mounting plate, a material discharge rack is fixedly installed on the guide rail, two placement plates are respectively inserted at both ends of the material discharge rack, and the output end of the first driving cylinder is fixedly connected to the material discharge rack.

[0008] As a preferred embodiment of the present invention: polygonal positioning holes are provided at both ends of the material discharging rack, positioning pins that match the polygonal positioning holes are fixedly installed at the bottom of the placement plate, weighing sensors are provided at both ends of the material discharging rack, and the bottom of the placement plate is in contact with the weighing sensors.

[0009] As a preferred embodiment of the present invention: the two groups of outer forming modules each include a turntable rotatably connected to the top of the mounting plate, the two groups of turntables are symmetrically arranged on both sides of the clay conveyor, a mounting column is fixedly installed on the top center of the turntable, four groups of support plates arranged around the mounting column are fixedly installed on the top of the turntable, and the angle between two adjacent support plates is 90°, a second driving cylinder is fixedly installed on the mounting column and the support plate, a limiting rod is fixedly installed on the outer mold, the limiting rod is slidably connected to the support plate, the output end of the second driving cylinder is fixedly connected to the outer mold, and a driving part for driving the two groups of turntables to rotate is provided at the bottom of the mounting plate.

[0010] As a preferred embodiment of the present invention: two groups of external mold processing parts are fixedly installed on the top of the mounting plate, and the two groups of external mold processing parts are symmetrically arranged on both sides of the external molding module, and the two groups of external mold processing parts include three groups of second mounting cylinders fixedly installed on the mounting plate, and when the second driving cylinder drives the outer mold to move toward the outer ring of the mounting plate, the outer mold and the second mounting cylinder are engaged with each other to form a sealed cylindrical cylinder; a second feed pipe and a second discharge pipe are fixedly installed on the second mounting cylinder, and a fifth driving cylinder is fixedly installed on the bottom of the mounting plate, and the output end of the fifth driving cylinder extends to the second mounting cylinder where a second wide-angle nozzle is fixedly installed, and the input end of the second wide-angle nozzle is connected to the second feed pipe; the three second wide-angle nozzles in the two groups of external mold processing parts include a high-pressure liquid nozzle, a high-pressure gas nozzle and a release agent nozzle.

[0011] As a preferred embodiment of the present invention: the driving part includes a reduction motor fixedly installed in the chassis, and a transmission shaft fixedly connected to the output end of the reduction motor is rotatably installed at the bottom of the mounting plate. The bottoms of the two turntables are fixedly installed with rotating shafts, which extend to the bottom of the mounting plate and are connected to the transmission shaft through a bevel gear set. When the reduction motor drives the two sets of turntables to rotate, the outer molds on the two sets of turntables circulate through the high-pressure liquid nozzle, the high-pressure gas nozzle, the release agent nozzle and the center of the mounting plate.

[0012] As a preferred embodiment of the present invention: the inner molding module includes an elevator and an inner mold fixedly installed on the elevator, the elevator includes a mounting frame rotatably installed on the top of the chassis, the mounting frame is fixedly connected to the top of one of the mounting columns, the mounting frame is fixedly installed with four third drive cylinders distributed equidistantly in a circle, the output end of the third drive cylinder is fixedly installed with a slider, and the slider is slidably installed on the mounting frame.

[0013] As a preferred embodiment of the present invention: the inner mold includes four mounting tubes fixedly mounted on four sliders respectively, a piston cylinder fixedly mounted in the mounting tube, a piston plate slidably mounted in the piston cylinder, a fourth driving cylinder fixedly mounted on the top of the mounting tube, the output end of the fourth driving cylinder extends into the piston cylinder and is fixedly connected to the piston plate; a plugging head is threadedly connected to the output end of the piston cylinder, an expansion bag is fixedly mounted on the bottom of the plugging head, a support tube is fixedly mounted on the bottom of the piston cylinder, the support tube is inserted into the expansion bag, and an inner mold processing part is provided on the chassis.

[0014] As a preferred embodiment of the present invention: the inner mold processing part includes three first mounting cylinders fixedly mounted on the top of the chassis, the angle between two adjacent first mounting cylinders is 90°, and the three first mounting cylinders are fixedly mounted with a diverter ring and a first wide-angle nozzle fixedly mounted on the diverter ring, and the three first wide-angle nozzles are respectively a high-pressure liquid nozzle, a high-pressure gas nozzle, and a release agent nozzle; the first mounting cylinder is fixedly mounted with a first feed pipe and a first discharge pipe, the first feed pipe is fixedly connected to the diverter ring, a sealing slide is slidably mounted on the piston cylinder, a spring is fixedly mounted on the top of the sealing slide, and the top of the spring is fixedly connected to the piston cylinder.

[0015] A method for using a device for preparing an enamel body comprises the following steps:

[0016] Step 1: Manually operate the drive unit to stop the turntable at the 0° forming position, ensure that the outer mold is separated at the forming position, the inner mold expansion bag is reset, and the clay conveyor unloading rack is in place;

[0017] Step 2: Insert the placement plate with clay into the material rack and test it with the weighing sensor. If it is qualified, the first drive cylinder will push the material rack to the center of the chassis. If it is unqualified, an alarm will be triggered and the machine will be retested after manual processing.

[0018] Step 3: The unloading rack drives the qualified clay to the center of the chassis for processing, and the unloading rack at the other end moves to the loading and unloading port on the opposite side to prepare for loading;

[0019] Step 4: The turntable is kept at 0°, and the second drive cylinder pushes the outer mold to merge and wrap the outside of the clay;

[0020] Step 5: The third driving cylinder at the molding position extends, and the expansion bladder is inserted into the center of the clay to form a closed space;

[0021] The remaining expansion bladders are inserted into the first mounting cylinder, and at the same time, three groups of second wide-angle nozzles are used to rinse, dry, and spray release agent on the inner cavity of the outer mold;

[0022] Step 6: The expansion bladder is expanded to form a blank, and at the same time, the three groups of first wide-angle nozzles rinse, dry and spray the release agent on the remaining expansion bladders;

[0023] Step 7: The fourth driving cylinder withdraws the medium to shrink the expansion bladder, the third driving cylinder drives the expansion bladder to reset, and the second driving cylinder drives the outer mold to reset;

[0024] Step 8: Repeat steps 2 to 7 to achieve continuous production.

[0025] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: the present invention realizes the synchronous operation of "loading-processing-unloading" through the reciprocating movement of the double placing plates of the clay conveyor, eliminates the standby time of a single workstation, and improves the molding efficiency; the positioning pin and the polygonal positioning hole are used to ensure the precise alignment of the clay socket and the expansion bag, the weighing sensor detects the weight of the clay in real time to eliminate unqualified raw materials, and the pressure sensor monitors the expansion pressure to ensure quality, thereby solving the problem of unstable size accuracy and quality of the blank; the outer mold processing part and the inner mold processing part respectively perform "cleaning-drying-spraying release agent" fully automated maintenance on the inner and outer molds, and the mold and the mounting cylinder form a sealed space to avoid liquid splashing, and the waste liquid can be recycled, thereby solving the problem of inconvenience in mold cleaning and maintenance; the drive system drives the two sets of turntables to rotate synchronously through a reduction motor, etc., and the limit switch and encoder ensure the alignment accuracy of the workstation, realizing precise linkage of each module, improving the overall molding efficiency and quality, and facilitating mold processing and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In the attached figure:

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of a device for preparing enamel blanks proposed by the present invention;

[0028] Figure 2 This is a schematic structural diagram of an inner forming module and an outer mold processing portion of a device for preparing an enamel body proposed by the present invention;

[0029] Figure 3 This is a schematic structural diagram of a driving portion of a device for preparing an enamel body proposed in the present invention;

[0030] Figure 4 A top view of a clay conveyor of a device for preparing enamel bodies proposed in the present invention;

[0031] Figure 5 This is a schematic diagram of the three-dimensional structure of a clay conveyor for preparing an enamel body proposed by the present invention;

[0032] Figure 6 This is a schematic structural diagram of an outer mold of a device for preparing an enamel body proposed in the present invention;

[0033] Figure 7 A cross-sectional view of an inner mold processing portion of a device for preparing an enamel body proposed by the present invention;

[0034] Figure 8 This is a schematic diagram of the three-dimensional structure of an inner forming module of a device for preparing enamel blanks proposed by the present invention;

[0035] Figure 9 The present invention proposes a device for preparing enamel blanks Figure 8 Schematic diagram of the structure at A in the middle;

[0036] Figure 10 This is a schematic structural diagram of a fifth driving cylinder of a device for preparing enamel blanks proposed by the present invention;

[0037] Figure 11 The present invention provides a flow chart of the device for preparing enamel blanks.

[0038] Figure: 1, chassis; 11, loading and unloading ports; 12, mounting plate; 2, clay conveyor; 21, guide rail; 22, unloading rack; 23, polygonal positioning hole; 24, weighing sensor; 25, placement plate; 26, positioning pin; 27, first drive cylinder; 3, outer molding module; 31, turntable; 311, mounting column; 32, support plate; 33, limit rod; 34, second drive cylinder; 35, outer mold; 4, inner molding module; 41, lifter; 411, mounting rack; 412, slider; 413, third drive cylinder; 42, inner mold; 421, mounting pipe; 422 , piston cylinder; 423, fourth drive cylinder; 424, piston plate; 425, spring; 426, blocking slide; 427, blocking head; 428, expansion bag; 5, inner mold processing unit; 51, first mounting cylinder; 52, diverter ring; 53, first wide-angle nozzle; 54, first feed pipe; 55, first discharge pipe; 6, outer mold processing unit; 61, second mounting cylinder; 62, second feed pipe; 63, second discharge pipe; 64, fifth drive cylinder; 65, second wide-angle nozzle; 7, drive unit; 71, reduction motor; 72, transmission shaft; 73, rotating shaft; 74, bevel gear set. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0040] Example: Refer to Figures 1-11A device for preparing enamel blanks includes a chassis 1 provided with two symmetrical loading and unloading ports 11. In actual production, two workers or two handling robots can be arranged to load and unload the clay at the two loading and unloading ports 11.

[0041] The staff or robot places the pre-prepared clay with a hole in the center on the placement plate 25, preparing for the subsequent green body preparation process.

[0042] Reference Figure 1 and Figure 4 An integrally formed mounting plate 12 is provided in the chassis 1. The mounting plate 12 serves as a core mounting carrier for installing two sets of outer forming modules 3, an outer mold processing unit 6, a clay conveyor 2, and a driving unit 7 for driving the outer forming modules 3 to rotate. In addition, an inner forming module 4 and an inner mold processing unit 5 are installed on the top of the chassis 1. The various components are distributed in an orderly manner, together forming a complete enamel blank preparation system.

[0043] Among them, the function of the outer mold processing part 6 is to clean, dry and spray the outer mold 35 in the outer molding module 3 with a release agent to ensure that the outer mold 35 is in the best condition before each use; the inner mold processing part 5 is used to clean, dry and spray the expansion bladder 428 in the inner molding module 4 with a release agent to ensure the normal working performance of the inner mold 42 components.

[0044] Reference Figure 4 The two groups of outer forming modules 3 are symmetrically arranged on both sides of the clay conveyor 2, and the outer molds 35 in the two groups of outer forming modules 3 are combined to form a complete outer liner.

[0045] Reference Figure 6 The inner molding module 4 is provided with an expansion bladder 428 that extends into the interior of the molding outer bladder and expands. When the expansion bladder 428 is inserted into the insertion hole of the clay, it expands. The shape of the expansion bladder 428 can be designed according to the shape of the inner hole of the formed blank. After the expansion bladder 428 is expanded, it cooperates with the inner hole of the molding outer bladder to squeeze the clay into the desired blank.

[0046] Reference Figure 6 Two sets of symmetrically arranged placement plates 25 are detachably mounted on the clay conveyor 2. When one of the placement plates 25 moves to the center of the chassis 1, the other placement plate 25 moves to the loading and unloading port 11. The two sets of placement plates 25 move back and forth to replenish the clay raw materials to be processed and output the formed green bodies, realizing a continuous production process through alternating workstations.

[0047] Specifically, when one of the placement plates 25 moves to the loading and unloading port 11, the staff / robot can place new clay raw materials (with a socket in the center) here to complete the loading operation; the other placement plate 25 is synchronously moved to the center of the chassis 1, and is transported by the clay conveyor 2 to the middle of the two groups of outer forming modules 3 and below the inner forming module 4. After the outer bladder is formed and the expansion bag 428 is extruded, a blank is finally formed. When the processed blank is moved from the placement plate 25 to the loading and unloading port 11 again, the staff / robot removes the formed blank to complete the unloading.

[0048] Reference Figure 3-Figure 6 The clay conveyor 2 includes a guide rail 21 fixedly mounted on the top of the mounting plate 12 and a first driving cylinder 27 fixedly mounted on the bottom of the mounting plate 12. A discharge rack 22 is fixedly mounted on the guide rail 21. Two placement plates 25 are respectively inserted at both ends of the discharge rack 22. The output end of the first driving cylinder 27 is fixedly connected to the discharge rack 22. Polygonal positioning holes 23 are provided at both ends of the discharge rack 22. A positioning pin 26 that matches the polygonal positioning hole 23 is fixedly mounted at the bottom of the placement plate 25. Weighing sensors 24 are provided at both ends of the discharge rack 22, and the bottom of the placement plate 25 is in contact with the weighing sensor 24.

[0049] The placement plate 25 (empty plate) moves to the loading and unloading port 11, and the staff or robot places the clay on the plate. The positioning pin 26 is inserted into the polygonal positioning hole 23 of the discharge rack 22 to complete the installation. The weight of the clay is detected by the weighing sensor 24. If it is qualified, the first driving cylinder 27 pushes the discharge rack 22 to move toward the center of the chassis 1. If it is unqualified, the external alarm device is controlled to sound an alarm.

[0050] The unloading rack 22 drives the placement plate 25 (carrying clay) to move to the center processing position of the chassis 1. At the same time, the placement plate 25 (carrying the formed body) at the other end moves to the loading and unloading port 11. The outer forming module 3 and the inner forming module 4 extrude the clay to complete the preparation of the body. After the processing is completed, the first driving cylinder 27 drives the unloading rack 22 in the reverse direction, and the placement plate 25 (carrying the body) moves to the loading and unloading port 11. The staff removes the body and the placement plate 25 (carrying the body) and replaces them with a new placement plate 25 (carrying clay).

[0051] The clay conveyor 2 eliminates the "standby time" of single-station equipment by alternating loading, processing and unloading at the front and rear stations, thereby improving the preparation efficiency of the green body. The double loading and unloading ports 11 support two people's simultaneous operation or fully automated robot docking to adapt to different production capacity requirements.

[0052] The polygonal positioning hole 23 cooperates with the positioning pin 26 to ensure the unique orientation of the placement plate 25 during installation, avoiding misalignment of the clay socket and the expansion bag 428 due to incorrect direction. Combined with the real-time weight detection and alarm function, raw materials with unqualified weight can be eliminated from the source, reducing losses in subsequent processes.

[0053] Reference Figures 1-6 and Figure 10 The two sets of outer molding dies 3 each include a turntable 31 rotatably connected to the top of the mounting plate 12. The two sets of turntables 31 are symmetrically arranged on both sides of the clay conveyor 2 (one set on the left and one on the right). A mounting post 311 is fixedly mounted on the top center of the turntable 31. Four sets of support plates 32 arranged around the mounting post 311 are fixedly mounted on the top of the turntable 31. The included angle between two adjacent sets of support plates 32 is 90° (the four sets of support plates 32 are equidistantly distributed around the circumference). A second driving cylinder 34 is fixedly mounted on the mounting post 311 and the support plates 32. A limiting rod 33 is fixedly mounted on the outer mold 35. The limiting rod 33 is slidably connected to the support plate 32. The output end of the second driving cylinder 34 is fixedly connected to the outer mold 35. A driving unit 7 for driving the two sets of turntables 31 to rotate is provided at the bottom of the mounting plate 12.

[0054] Two sets of outer mold processing parts 6 are fixedly installed on the top of the mounting plate 12. The two sets of outer mold processing parts 6 are symmetrically arranged on both sides of the outer molding module 3. The two sets of outer mold processing parts 6 are symmetrically distributed on the outside of the left and right turntables 31. Each set includes three second mounting cylinders 61 (corresponding to the three processes of cleaning, drying, and spraying), which are arranged at 90° intervals and correspond to the workstations of the turntable 31 one by one. When the second driving cylinder 34 drives the outer mold 35 to move toward the outer ring of the mounting plate 12, the outer mold 35 is engaged with the second mounting cylinder 61. into a sealed cylindrical cylinder; a second feed pipe 62 and a second discharge pipe 63 are fixedly mounted on the second mounting cylinder 61, a fifth drive cylinder 64 is fixedly mounted on the bottom of the mounting plate 12, the output end of the fifth drive cylinder 64 extends to the second mounting cylinder 61 where a second wide-angle nozzle 65 is fixedly mounted, and the input end of the second wide-angle nozzle 65 is connected to the second feed pipe 62; the three second wide-angle nozzles 65 in the two groups of outer mold processing parts 6 all include high-pressure liquid nozzles, high-pressure gas nozzles and release agent nozzles.

[0055] The turntable 31 stops at the 0° position, and the left outer mold 35 and the right outer mold 35 move toward the center through the second drive cylinder 34 and merge into a completely formed outer liner; the expansion bag 428 of the inner molding module 4 extends into the clay socket, and after being inflated with air (or filled with hydraulic oil to expand), it cooperates with the outer liner to extrude and mold, and the molding completion signal is fed back to the control system.

[0056] Then, the second driving cylinder 34 is controlled to drive the outer mold 35 to retract to a position close to the mounting column 311 (to avoid interference with the clay conveyor 2 during rotation);

[0057] The driving unit 7 is started, driving the turntable 31 to rotate 90° clockwise, and the outer mold 35 is transferred from the forming station (0°) to the cleaning station (90°). During the rotation process, the outer mold 35 remains in a contracted state, and the limit rod 33 slides along the slide groove of the support plate 32 to reset. After the turntable 31 stops, the second driving cylinder 34 drives the outer mold 35 to move outward again until the limit rod 33 engages with the second mounting cylinder 61 to form a sealed cylindrical cylinder. Then, the fifth driving cylinder 64 drives the second wide-angle nozzle 65 to move up and down in the sealing cylinder to process the outer mold 35:

[0058] The high-pressure liquid nozzle (e.g., a water-based cleaning agent with a pressure of 20 MPa) is started to spray and clean the inner surface of the mold, and the waste liquid is discharged through the second discharge pipe 63 to the sewage treatment system;

[0059] After cleaning, the turntable 31 rotates 90° again, and the outer mold 35 enters the drying station and engages with the corresponding second mounting cylinder 61;

[0060] A high-pressure gas nozzle (such as 0.6 MPa compressed air) sprays high-pressure and high-speed drying gas to dry the residual moisture on the mold surface. The moisture carried by the gas is discharged through the second discharge pipe 63;

[0061] After drying, the turntable 31 rotates to the 270° position, and the outer mold 35 engages with the second mounting cylinder 61 corresponding to the release agent nozzle. Then, the release agent nozzle (such as an atomizing nozzle) sprays the release agent. The release agent is transported to the nozzle through the second feed pipe 62 and evenly sprayed on the mold surface to form a thin film. Excess release agent is recovered through the discharge pipe to avoid waste.

[0062] After lamination, the turntable 31 rotates the last 90°, the outer mold 35 returns to the molding station, and the second driving cylinder 34 drives the outer mold 35 to retract to the initial position, waiting for the opposite mold to close.

[0063] In addition, the system synchronously triggers the right turntable 31 to perform symmetrical actions to ensure that the processing flow of the left and right molds is consistent.

[0064] In summary, after the outer mold 35 and the second mounting cylinder 61 are combined, mechanical locking is achieved through the thrust of the second driving cylinder 34 to form a sealed space. This sealing design prevents the cleaning liquid / release agent from splashing.

[0065] During actual use, when the turntable 31 rotates, the second drive cylinder 34 must be in a retracted state (detected by a limit switch) to prevent the mold from colliding with the installation cylinder or the clay conveyor 2; the second drive cylinder 34 can only be activated after the turntable 31 stops (the angle is confirmed by the encoder) to ensure the accuracy of the workstation alignment.

[0066] The above-mentioned outer molding module 3 and outer mold processing part 6 realize the full process automation cycle of molding-cleaning-drying-spraying. Each mold completes all maintenance processes within one rotation, forming efficient cooperation with the inner molding module 4 and the clay conveyor 2.

[0067] Reference Figure 3 The driving part 7 includes a reduction motor 71 fixedly installed in the chassis 1. A transmission shaft 72 fixedly connected to the output end of the reduction motor 71 is rotatably installed at the bottom of the mounting plate 12. A rotating shaft 73 is fixedly installed at the bottom of the two turntables 31. The rotating shaft 73 extends to the bottom of the mounting plate 12 and is connected to the transmission shaft 72 through a bevel gear set 74. When the reduction motor 71 drives the two sets of turntables 31 to rotate, the outer molds 35 on the two sets of turntables 31 circulate through the high-pressure liquid nozzle, the high-pressure gas nozzle, the release agent nozzle and the center of the mounting plate 12.

[0068] The two sets of turntables 31 are driven by the same transmission shaft 72, and the bevel gear set 74 ensures that the turntables 31 on both sides rotate at the same speed and in the same direction (both rotate clockwise or counterclockwise). When the left turntable 31 rotates to the cleaning position (90°), the right turntable 31 rotates synchronously to the symmetrical position (such as the right cleaning position), ensuring that the left and right mold processing processes are completely synchronized, avoiding misalignment of the outer mold 35 and the second mounting cylinder 61 due to the speed difference.

[0069] The driving unit 7 drives the turntable 31 to rotate 90° each time (corresponding to four-station switching), and precise positioning is achieved by pulse control of the reduction motor 71 or encoder feedback.

[0070] Reference Figure 1 、 Figure 5 、 Figure 7-Figure 9 The inner molding module 4 includes an elevator 41 and an inner mold 42 fixedly mounted on the elevator 41. The elevator 41 includes a mounting frame 411 rotatably mounted on the top of the chassis 1. The mounting frame 411 is fixedly connected to the top of one of the mounting columns 311. The mounting frame 411 is fixedly mounted with four third drive cylinders 413 equidistantly distributed around the circumference. The output end of the third drive cylinder 413 is fixedly mounted with a slider 412, which is slidably mounted on the mounting frame 411.

[0071] The inner mold 42 includes four mounting tubes 421 fixedly mounted on the four sliders 412, each of which has a piston cylinder 422 fixedly mounted therein. A piston plate 424 is slidably mounted therein. A fourth drive cylinder 423 is fixedly mounted on the top of the mounting tube 421. The output end of the fourth drive cylinder 423 extends into the piston cylinder 422 and is fixedly connected to the piston plate 424.

[0072] The output end of the piston cylinder 422 is threadedly connected to a plugging head 427, an expansion bag 428 is fixedly installed at the bottom of the plugging head 427, and a support tube is fixedly installed at the bottom of the piston cylinder 422. The support tube is inserted into the expansion bag 428. The chassis 1 is provided with an inner mold processing part 5;

[0073] The inner mold processing unit 5 includes three first mounting cylinders 51 fixedly mounted on the top of the chassis 1. The angle between two adjacent first mounting cylinders 51 is 90 degrees. A diverter ring 52 and a first wide-angle nozzle 53 fixedly mounted on the diverter ring 52 are fixedly mounted in each of the three first mounting cylinders 51. The three first wide-angle nozzles 53 are respectively a high-pressure liquid nozzle, a high-pressure gas nozzle, and a release agent nozzle.

[0074] The first feed pipe 54 and the first discharge pipe 55 are fixedly installed on the first mounting cylinder 51. The first feed pipe 54 is fixedly connected to the diverter ring 52. A blocking slide 426 is slidably installed on the piston cylinder 422. A spring 425 is fixedly installed on the top of the blocking slide 426. The top of the spring 425 is fixedly connected to the piston cylinder 422.

[0075] When in use, the third drive cylinder 413 can drive the slider 412 to move up and down along the mounting frame 411. When in use, the fourth drive cylinder 423 drives the piston plate 424 to rise or fall. During this process, the medium (gas or hydraulic oil) in the piston cylinder 422 is pressed into the expansion bag 428 to expand the expansion bag 428, or the medium in the expansion bag 428 is drawn back into the piston cylinder 422, thereby shrinking the expansion bag 428.

[0076] While the turntable 31 rotates, the mounting column 311 drives the mounting frame 411 to rotate. Before the mounting frame 411 starts to rotate, the third driving cylinder 413 drives all the sliders 412 to slide upward to the initial position to prevent collision with the first mounting cylinder 51, the outer mold 35 and the blank.

[0077] When the turntable 31 stops rotating, the third driving cylinder 413 above the molding position drives the support tube and the expansion bag 428 to be inserted into the notch in the center of the clay until the sealing head 427, the outer mold 35 and the placement plate 25 (clay carrier) are combined to form a sealed space, and then the expansion bag 428 is inflated.

[0078] During the process of the expansion bladder 428 and the support tube descending, the remaining three groups of expansion bladders 428 are inserted into the first mounting tube 51 under the drive of the third driving cylinder 413, and then the three groups of expansion bladders 428 in the first mounting tube 51 are driven to move back and forth. During this process, the three groups of first wide-angle nozzles 53 spray cleaning liquid, dry air flow and release agent to the three groups of expansion bladders 428 respectively. During the processing of the expansion bladder 428, the sealing slide 426 is tightly in contact with the top of the first mounting tube 51 under the action of the spring 425 to achieve sealing.

[0079] The specific workflow is as follows:

[0080] The turntable 31 stops at the 0° forming station, and the mounting frame 411 is positioned synchronously with the mounting column 311. Among the four groups of expansion bags 428 of the inner mold 42, one group is aligned with the center of the chassis 1 (forming position), and the remaining three groups correspond to the three first mounting cylinders 51 of the inner mold processing part 5 (cleaning, drying, and spraying stations).

[0081] All sliders 412 are in their initial positions (the third drive cylinder 413 is retracted to its highest position), the expansion bag 428 is away from the outer mold 35 and the clay conveyor 2 to avoid rotation interference, and the two sets of outer molds 35 are separated at the molding position, waiting to be closed after the clay is transported to the center.

[0082] Driven by the first driving cylinder 27, the unloading rack 22 transports the placement plate 25 containing the clay to the center of the chassis 1 and is located between the two sets of outer molds 35. When the two outer molds 35 on both sides of the forming position are merged, the third driving cylinder 413 corresponding to the forming position extends, and the driving slider 412 descends along the mounting frame 411. The expansion bag 428 is inserted into the center plug hole of the clay along with the support tube until the sealing head 427 is sealed with the top surface of the outer mold 35 and the upper surface of the placement plate 25 to form a closed space.

[0083] The fourth driving cylinder 423 is driven to move downward, pressing the medium (gas or hydraulic oil) inside the piston cylinder 422 into the expansion bladder 428. The expansion bladder 428 cooperates with the inner hole of the outer mold 35 to squeeze the clay to form the inner and outer contours of the green body.

[0084] During extrusion molding, the pressure inside the piston cylinder 422 can be monitored in real time through a pressure sensor. If the pressure is abnormal (too high), the pressure relief protection is automatically triggered to prevent the expansion bag 428 from bursting.

[0085] After the clay is extruded into a green body, the fourth driving cylinder 423 reverses and drives the piston plate 424 to rise, withdrawing the medium in the expansion bag 428, causing it to deflate and shrink back to its initial state. Then the third driving cylinder 413 retracts, and the sliders 412 of all workstations drive the expansion bag 428 to rise to a safe height (initial position) to avoid collision.

[0086] The reduction motor 71 drives the turntable 31 to rotate 90° through the transmission shaft 72 and the bevel gear set 74 , and the mounting bracket 411 rotates synchronously with the mounting column 311 .

[0087] The inner mold 42 originally in the molding position is transferred to the cleaning position (corresponding to the first first installation cylinder 51 ), and the inner mold 42 originally in the cleaning position is transferred to the drying position, and so on, forming a station cycle.

[0088] Before rotation, all sliders 412 must be in the initial position (confirmed by the limit switch), otherwise the turntable 31 is prohibited from rotating.

[0089] The inner mold 42 is cleaned (taking the cleaning station as an example). The slider 412 descends to the cleaning station, and the third drive cylinder 413 of the cleaning station extends, driving the expansion bladder 428 to be inserted into the first mounting cylinder 51 until the blocking slide 426 is in sealing contact with the top of the cylinder under the action of the spring 425. The cleaning liquid (such as a water-based cleaning agent) is sprayed out from the high-pressure liquid nozzle through the first feed pipe 54 and the diverter ring 52 to flush the outer surface of the expansion bladder 428 360°. The sewage formed by cleaning flows into the filtration system through the first discharge pipe 55 for recycling or centralized treatment.

[0090] After the inner mold 42 is transferred to the drying station, the slider 412 is lowered and the high-pressure gas nozzle is activated to dry out the remaining moisture.

[0091] After the inner mold 42 is transferred to the spraying station, the slider 412 descends, and the release agent nozzle (atomizing spray) evenly applies the release agent, and the excess release agent is recovered through the discharge pipe.

[0092] The inner mold 42 that has completed the processing is turned back to the 0° forming station to wait for the next piece of clay to be transported to the location.

[0093] In summary, the preparation device has the following advantages:

[0094] 1. Dual-station alternation and continuous production: The two sets of placement plates 25 of the clay conveyor 2 move back and forth, realizing the simultaneous operation of "loading-processing-unloading", eliminating the standby time of a single station and greatly improving production capacity; the dual loading and unloading ports 11 support manual or robotic operation, adapting to different production capacity requirements, and forming a continuous production process through station alternation, significantly improving preparation efficiency.

[0095] 2. High-precision positioning and quality control: The placement plate 25 cooperates with the polygonal positioning hole 23 through the positioning pin 26 to ensure that the clay plug hole and the expansion bladder 428 are precisely aligned, avoiding molding deviations caused by incorrect directions. The weighing sensor 24 detects the weight of the clay in real time, and alarms and removes unqualified clays, thus reducing losses in subsequent processes at the source. The pressure sensor of the inner mold 42 monitors the expansion pressure in real time and automatically relieves pressure in the event of an abnormality, ensuring equipment safety and stable green body quality.

[0096] 3. Automated mold maintenance and full-process collaboration: The outer mold processing unit 6 and the inner mold processing unit 5 perform fully automated maintenance of "cleaning-drying-spraying release agent" on the inner and outer molds 35 respectively. All maintenance processes are completed within one rotation of the mold, parallel to the molding process, reducing manual intervention and improving production consistency; the outer mold 35 and the second mounting cylinder 61, and the inner mold 42 and the first mounting cylinder 51 form a sealed space to prevent splashing of cleaning liquid and release agent, and the waste liquid and release agent can be recycled and processed, which is environmentally friendly and efficient.

[0097] 4. Precise linkage and modular design of the drive system: The drive unit 7 drives the two sets of turntables 31 to rotate synchronously via a reduction motor 71, a drive shaft 72, and a bevel gear set 74, ensuring that the left and right outer molds 35 rotate at the same speed and direction. The accuracy of station switching is dual-guaranteed by an encoder and limit switches. Each module (external molding module 3, internal molding module 4, clay conveyor 2, etc.) is independently mounted on a mounting plate 12, facilitating maintenance, upgrades, or expansions, thereby enhancing the versatility and flexibility of the equipment.

[0098] 5. Multi-process parallelism and energy closed-loop optimization: During blank forming, the forming station operates synchronously with the cleaning, drying, and spraying stations, forming a "production-maintenance" multi-threaded mode, shortening the single cycle time; the outer mold 35 and the inner mold 42 are mechanically locked and sealed to ensure leakage during the maintenance process, while providing a reliable mold state for forming. The coordinated operation of various components achieves a dual improvement in efficient production capacity and stable quality.

[0099] A method for using a device for preparing an enamel body comprises the following steps:

[0100] Step 1: Manually operate the driving unit 7 to stop the turntable 31 at the 0° forming position;

[0101] At this time, ensure that the outer mold 35 is separated at the molding position and waits for clay to be fed; the expansion bladder 428 of the inner mold 42 is in the initial position (the third drive cylinder 413 is retracted, and the expansion bladder 428 is away from the center of the chassis 1); the unloading rack 22 of the clay conveyor 2 is located at the loading and unloading port 11, and the placement plate 25 (for carrying clay) is ready;

[0102] Step 2: A worker or a handling robot inserts the placement plate 25 (carrying clay) into the unloading rack 22 via the positioning pins 26 at any loading and unloading port 11, and uses the weighing sensor 24 to measure the weight of the clay:

[0103] If qualified, the first driving cylinder 27 pushes the unloading rack 22 to move along the guide rail 21 toward the center of the chassis 1;

[0104] If it fails, the external alarm will sound, the abnormal clay will be manually removed, and new clay and placement plate 25 will be replaced, and the weighing test steps will be repeated until it passes.

[0105] Step 3: The unloading rack 22 drives the placement plate 25 carrying the qualified clay to move to the center of the chassis 1 (processing position), and at the same time, the end of the unloading rack 22 at the other end moves to the opposite loading and unloading port 11 to prepare for loading;

[0106] Step 4: The turntables 31 of the two sets of outer molding modules 3 are kept at the 0° molding position, and the second driving cylinder 34 pushes the outer mold 35 toward the center to merge into a complete molded outer liner, wrapping the clay exterior;

[0107] Step 5: The third drive cylinder 413 corresponding to the molding position extends, driving the slider 412 to descend along the mounting frame 411. The expansion capsule 428 is inserted into the center hole of the clay along with the support tube until the sealing head 427 is in contact with the top surface of the outer mold 35 and cooperates with the placement plate 25 to form a closed space. The remaining three groups of expansion capsules 428 are respectively inserted into the three first mounting cylinders 51. At the same time, the three groups of second wide-angle nozzles 65 respectively rinse, dry, and spray release agent on the inner cavities of the three groups of outer molds 35.

[0108] Step 6: The expansion bladder 428 is expanded to form a blank. While the blank is being formed, the three groups of first wide-angle nozzles 53 respectively rinse, dry, and spray a release agent on the other three groups of expansion bladders 428;

[0109] Step 7: After the molding is completed, the fourth driving cylinder 423 moves in the reverse direction, the piston plate 424 rises to withdraw the medium, the expansion bladder 428 is depressurized and retracts, and then the third driving cylinder 413 retracts, driving the expansion bladder 428 to rise to the initial position to avoid collision. During the process of the expansion bladder 428 returning to its original position, the second driving cylinder 34 drives the outer mold 35 to return to its original position.

[0110] Step 8: Repeat steps 2 to 7 to achieve continuous production.

[0111] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the present invention can make slight changes or modifications to equivalent embodiments using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are within the scope of the solution of the present invention.

Claims

1. A device for preparing an enamel body, comprising a chassis (1) provided with two symmetrical loading and unloading ports (11), and an integrally formed mounting plate (12) provided in the chassis (1), characterized in that: Also includes: Two sets of external molding modules (3) are symmetrically arranged in the chassis (1), and the external molds (35) in the two sets of external molding modules (3) are combined to form a complete molded external liner; An inner molding module (4) is arranged on the top of the chassis (1), and an expansion bag (428) is provided on the inner molding module (4) for extending into the interior of the molded outer bladder and expanding; The clay conveyor (2) is fixedly mounted in the chassis (1), and two sets of symmetrically arranged placement plates (25) are detachably mounted on the clay conveyor (2). When the placement plates (25) transport the clay with a socket at the center to the center of the chassis (1), the two sets of outer molds (35) are combined to cover the clay, and then the expansion bag (428) is inserted into the socket and expanded. When one of the placement plates (25) moves to the center of the chassis (1), the other placement plate (25) moves to the loading and unloading port (11); The two groups of outer forming modules (3) each include a turntable (31) rotatably connected to the top of the mounting plate (12). The two groups of turntables (31) are symmetrically arranged on both sides of the clay conveyor (2). A mounting column (311) is fixedly installed at the top center of the turntable (31). Four groups of support plates (32) arranged around the mounting column (311) are fixedly installed on the top of the turntable (31). The angle between two adjacent support plates (32) is 90°. A second driving cylinder (34) is fixedly installed on the mounting column (311) and the support plate (32). A limiting rod (33) is fixedly installed on the outer mold (35). The limiting rod (33) is slidably connected to the support plate (32). The output end of the second driving cylinder (34) is fixedly connected to the outer mold (35). A driving unit (7) for driving the two groups of turntables (31) to rotate is provided at the bottom of the mounting plate (12).

2. The device for preparing enamel body according to claim 1, characterized in that: The clay conveyor (2) comprises a guide rail (21) fixedly mounted on the top of a mounting plate (12) and a first driving cylinder (27) fixedly mounted on the bottom of the mounting plate (12); a material discharging rack (22) is fixedly mounted on the guide rail (21); two placement plates (25) are respectively plugged into the two ends of the material discharging rack (22); and an output end of the first driving cylinder (27) is fixedly connected to the material discharging rack (22).

3. The device for preparing enamel body according to claim 2, characterized in that: Both ends of the material discharging rack (22) are provided with polygonal positioning holes (23), and the bottom of the placement plate (25) is fixedly installed with positioning pins (26) that match the polygonal positioning holes (23). Both ends of the material discharging rack (22) are provided with weighing sensors (24), and the bottom of the placement plate (25) is in contact with the weighing sensors (24).

4. The device for preparing enamel body according to claim 1, characterized in that: Two groups of outer mold processing parts (6) are fixedly installed on the top of the mounting plate (12), and the two groups of outer mold processing parts (6) are symmetrically arranged on both sides of the outer molding module (3), and the two groups of outer mold processing parts (6) each include three groups of second mounting cylinders (61) fixedly installed on the mounting plate (12), and when the second driving cylinder (34) drives the outer mold (35) to move toward the outer ring of the mounting plate (12), the outer mold (35) and the second mounting cylinder (61) are engaged to form a sealed cylindrical cylinder; A second feed pipe (62) and a second discharge pipe (63) are fixedly mounted on the second mounting cylinder (61); a fifth drive cylinder (64) is fixedly mounted on the bottom of the mounting plate (12); an output end of the fifth drive cylinder (64) extends to the second mounting cylinder (61) where a second wide-angle nozzle (65) is fixedly mounted; an input end of the second wide-angle nozzle (65) is connected to the second feed pipe (62); The three second wide-angle nozzles (65) in the two groups of the outer mold processing parts (6) each include a high-pressure liquid nozzle, a high-pressure gas nozzle, and a release agent nozzle.

5. The device for preparing enamel body according to claim 4, characterized in that: The driving part (7) includes a reduction motor (71) fixedly mounted in the chassis (1); a transmission shaft (72) fixedly connected to the output end of the reduction motor (71) is rotatably mounted on the bottom of the mounting plate (12); a rotation shaft (73) is fixedly mounted on the bottom of each of the two turntables (31); the rotation shaft (73) extends to the bottom of the mounting plate (12) and is transmission-connected to the transmission shaft (72) via a bevel gear set (74); when the reduction motor (71) drives the two groups of turntables (31) to rotate, the outer molds (35) on the two groups of turntables (31) circulate through the high-pressure liquid nozzle, the high-pressure gas nozzle, the release agent nozzle and the center of the mounting plate (12).

6. The device for preparing enamel body according to claim 1, characterized in that: The inner molding module (4) includes an elevator (41) and an inner mold (42) fixedly mounted on the elevator (41); the elevator (41) includes a mounting frame (411) rotatably mounted on the top of the chassis (1); the mounting frame (411) is fixedly connected to the top of one of the mounting columns (311); four third drive cylinders (413) equidistantly distributed in a circumference are fixedly mounted on the mounting frame (411); a slider (412) is fixedly mounted on the output end of the third drive cylinder (413); and the slider (412) is slidably mounted on the mounting frame (411).

7. The device for preparing enamel body according to claim 6, characterized in that: The inner mold (42) includes four mounting tubes (421) fixedly mounted on four sliders (412), a piston cylinder (422) fixedly mounted in the mounting tubes (421), a piston plate (424) slidably mounted in the piston cylinder (422), a fourth driving cylinder (423) fixedly mounted on the top of the mounting tubes (421), and an output end of the fourth driving cylinder (423) extends into the piston cylinder (422) and is fixedly connected to the piston plate (424); The output end of the piston cylinder (422) is threadedly connected to a plugging head (427), an expansion bag (428) is fixedly installed at the bottom of the plugging head (427), a support tube is fixedly installed at the bottom of the piston cylinder (422), and the support tube is inserted into the expansion bag (428), and an inner mold processing part (5) is provided on the chassis (1).

8. The device for preparing enamel body according to claim 7, characterized in that: The inner mold processing part (5) comprises three first mounting cylinders (51) fixedly mounted on the top of the chassis (1), the angle between two adjacent first mounting cylinders (51) being 90°, a diverter ring (52) and a first wide-angle nozzle (53) fixedly mounted on the diverter ring (52) are fixedly mounted in each of the three first mounting cylinders (51), and the three first wide-angle nozzles (53) are respectively a high-pressure liquid nozzle, a high-pressure gas nozzle, and a release agent nozzle; A first feed pipe (54) and a first discharge pipe (55) are fixedly mounted on the first mounting cylinder (51), the first feed pipe (54) is fixedly connected to the diverter ring (52), a blocking slide (426) is slidably mounted on the piston cylinder (422), a spring (425) is fixedly mounted on the top of the blocking slide (426), and the top of the spring (425) is fixedly connected to the piston cylinder (422).

9. A method for using a device for preparing an enamel body, characterized in that: The device for preparing an enamel body according to claim 5 comprises the following steps: Step 1: Manually operate the driving unit (7) to stop the turntable (31) at the 0° forming position, ensure that the outer mold (35) is separated at the forming position, the expansion bag (428) of the inner mold (42) is reset, and the material rack (22) of the clay conveyor (2) is in place; Step 2: insert the placement plate (25) containing the clay into the material discharging rack (22), and detect it with the weighing sensor (24). If it is qualified, the first driving cylinder (27) pushes the material discharging rack (22) to the center of the chassis (1). If it is unqualified, an alarm is sounded, and manual processing is performed and then re-tested; Step 3: The unloading rack (22) drives the qualified clay to the center of the chassis (1) for processing, and the unloading rack (22) at the other end moves to the opposite side loading and unloading port (11) to prepare for loading; Step 4: The turntable (31) is kept at 0°, and the second driving cylinder (34) pushes the outer mold (35) to merge and wrap the outside of the clay; Step 5: The third driving cylinder (413) at the molding position is extended, and the expansion bag (428) is inserted into the center of the clay to form a closed space; The remaining expansion bladders (428) are inserted into the first mounting tube (51), and simultaneously three groups of second wide-angle nozzles (65) are used to flush, dry, and spray a release agent on the inner cavity of the outer mold (35); Step 6: The expansion bladder (428) is expanded to form a blank, and at the same time, the three groups of first wide-angle nozzles (53) rinse, dry, and spray a release agent on the remaining expansion bladders (428); Step 7: The fourth driving cylinder (423) withdraws the medium to retract the expansion bag (428), the third driving cylinder (413) drives the expansion bag (428) to reset, and the second driving cylinder (34) drives the outer mold (35) to reset; Step 8: Repeat steps 2 to 7 to achieve continuous production.

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