Ceramic pulling machine with double-turntable staggered rotation structure

Abstract

The application relates to the technical field of ceramic production and processing, and discloses a ceramic body pulling machine adopting a double-turntable staggered rotation structure, which comprises a workbench provided with a protective cover I at the lower end, electric push rods are symmetrically arranged at the upper end of the workbench, the extension ends of the two electric push rods are jointly provided with a mounting table, the mounting table is provided with a protective cover II at the upper end, support columns are rotationally arranged at the opposite ends of the workbench and the mounting table, and the opposite ends of the support columns on the upper and lower sides are provided with turntables. The ceramic body pulling machine adopting the double-turntable staggered rotation structure can effectively solve the problem that the traditional single-turntable structure is prone to the phenomenon that the body is thrown out due to excessive centrifugal force, which leads to the difficulty in the preliminary shaping of the body and further increases the difficulty in the center fixing of the body; the craftsman needs to press the body with both hands and gather the body to the center of the turntable, and if the force is too large, the bottom of the body is too thin or the body is deformed as a whole, and if the force is too small, the body cannot be firmly adhered to the turntable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ceramic production and processing, and particularly relates to a ceramic body pulling machine adopting a double-turntable staggered rotation structure. BACKGROUND

[0002] As a core process of ceramic product forming, the forming quality and production efficiency of ceramic body pulling are highly dependent on the structural rationality and operational flexibility of the body pulling equipment. The ceramic body pulling process includes fixing the body, opening the bottom, pulling up, shaping, trimming the bottom and edges, and taking the body. High-quality ceramic products have strict requirements on the symmetry, wall thickness uniformity, and surface finish of the body. The performance of the body pulling machine, which is the key equipment for shaping the body, directly affects the qualification rate of the final product. Existing ceramic body pulling machines are mainly single-turntable structures, which drive the body to rotate through a single rotating platform. The craftsman needs to complete a series of operations such as centering and pulling the body during the rotation of the turntable.

[0003] To this end, the present application designs a ceramic body pulling machine adopting a double-turntable staggered rotation structure. The existing ceramic body pulling machine usually adopts a single-turntable structure, which has limited pulling effect. Firstly, when fixing the body centering step, the traditional single-turntable structure lacks dynamic coordination mechanism. When there are slight differences in body humidity and hardness, it is difficult to adapt to the shaping needs of different bodies through a single turntable, which may cause the body to be thrown out due to excessive centrifugal force, making it difficult to initially shape the body and further increasing the difficulty of fixing the body centering. Secondly, the craftsman needs to visually judge whether the body is centered, press the body with both hands and gather it towards the center of the turntable. If the force is too large, it may cause the bottom of the body to be too thin or the whole body to be deformed. If the force is too small, the body cannot be firmly stuck to the turntable, and the body may slip when the turntable rotates. This may cause uneven stress on the body during subsequent shaping, resulting in wall thickness deviation or surface collapse. SUMMARY

[0004] In view of the above shortcomings of the prior art, the present application provides a ceramic body pulling machine adopting a double-turntable staggered rotation structure, which can effectively solve the problems of the prior art, such as the lack of dynamic coordination mechanism in the traditional single-turntable structure, the difficulty in adapting to the shaping needs of different bodies through a single turntable when there are slight differences in body humidity and hardness, the phenomenon of the body being thrown out due to excessive centrifugal force, the difficulty in initially shaping the body, the increase in the difficulty of fixing the body centering, the need for the craftsman to visually judge whether the body is centered, the pressing of the body with both hands and the gathering of the body towards the center, the excessive force causing the bottom of the body to be too thin or the whole body to be deformed, the insufficient force causing the body to be unable to be firmly stuck to the turntable, the body slipping when the turntable rotates, the uneven stress on the body during subsequent shaping, and the wall thickness deviation or surface collapse.

[0005] To achieve the above purpose, the present application is implemented by the following technical solutions:

[0006] The application provides a ceramic pulling machine adopting a double-turntable staggered rotation structure, comprising:

[0007] The lower end is provided with a protection cover I, the upper end of the workbench is symmetrically provided with electric push rods, the extension ends of the two electric push rods are jointly provided with a mounting table, the upper end of the mounting table is provided with a protection cover II, the opposite ends of the workbench and the mounting table are rotationally provided with support columns, the opposite ends of the support columns on the upper and lower sides are provided with turntables, the workbench is provided with a clamping part, and the mounting table is provided with a centering part;

[0008] The clamping part comprises water basins which are symmetrically arranged on the upper end of the workbench, the water basins are rotationally sleeved on the outer walls of the corresponding support columns, the outer wall of the lower support column is provided with a positioning sliding groove, a sleeve ring is slidably arranged on the inner wall of the positioning sliding groove, scraper plates are symmetrically arranged on the outer wall of the sleeve ring, and a clamping group is jointly arranged on the water basins on the front and back sides.

[0009] The centering part comprises a support plate which is arranged at the lower end of the mounting table, a rotating disc is rotationally sleeved on the upper end of the upper support column, an annular plate I is arranged on the upper end of the rotating disc, an annular plate II is arranged on the lower end of the mounting table and rotationally attached to the rotating disc, and a centering group is jointly arranged on the support plate, the rotating disc, the annular plate I and the annular plate II.

[0010] Further, the centering group comprises a plurality of matching sliding holes which are arranged on the upper end of the rotating disc and are uniformly distributed in a circle, a limiting sliding rod is slidably arranged on the inner wall of each matching sliding hole, a plurality of arc-shaped push plates which are uniformly distributed in a circle are arranged on the support plate on the upper and lower sides, a circular sliding hole is symmetrically arranged on the upper end of each arc-shaped push plate on the lower side, a support sliding rod which is fixedly connected to the arc-shaped push plate on the upper side is slidably arranged on the inner wall of the circular sliding hole, a compression spring is sleeved on the portion of the outer wall of the support sliding rod between the two arc-shaped push plates, a connecting rod is jointly arranged on the outer wall of the arc-shaped push plate on the upper side and the corresponding limiting sliding rod, the connecting rod is slidably arranged on the support plate, and a plurality of rolling balls are uniformly embedded on the upper end of the arc-shaped push plate on the upper side.

[0011] Further, the centering group further comprises a traction rope which is wound on the outer wall of the annular plate I, a threading plate is arranged on the front side of the lower end of the mounting table, one end of the traction rope away from the annular plate I is threaded through the threading plate and is provided with a handle, a volute spring is arranged between the annular plate I and the annular plate II, and the two ends of the volute spring are fixedly connected to the annular plate I and the annular plate II respectively.

[0012] Further, the clamping group comprises extension plates which are symmetrically arranged on the outer wall of the water basin, the front end of the extension plate on the rear side is provided with an insertion plate, the upper end of the insertion plate is provided with a butt joint groove, the rear end of the extension plate on the front side is provided with an insertion slot corresponding to the insertion plate, and the lower end of the extension plate on the front side is provided with a mounting sliding groove which is communicated with the insertion slot.

[0013] Further, the card joint group further comprises a limiting plate slidably installed on the inner wall of the installation sliding groove through a compression spring, the limiting plate is in L-shaped structure, and a positioning protruding plate is installed at the lower end of the horizontal section of the limiting plate corresponding to the butt joint groove.

[0014] Further, a plurality of magnetic suction sliders are uniformly distributed in a circle and installed on the inner wall of the sleeve ring corresponding to the positioning sliding groove, two clamping grooves are uniformly distributed in a circle and formed on the inner wall of the water basin, a containing groove is formed on the outer wall of the end of the scraper away from the supporting column corresponding to the clamping groove, and a clamping plate is slidably installed on the inner wall of the containing groove through a compression spring.

[0015] Further, a first variable frequency motor is installed on the inner wall of the first protective cover through a motor base, the output shaft of the first variable frequency motor is rotatably penetrated through the workbench and fixedly connected to the corresponding supporting column, a plurality of waist-shaped sliding holes are uniformly distributed in a rectangle and formed on the workbench, a second variable frequency motor is installed on the inner wall of the second protective cover through a motor base, and the output shaft of the second variable frequency motor is rotatably penetrated through the installation table and fixedly connected to the corresponding supporting column.

[0016] Compared with the prior art, the technical scheme provided by the application has the following beneficial effects:

[0017] The ceramic body pulling machine provided by the application adopts a double-turntable staggered rotation structure, in the centering and positioning stage, the first variable frequency motor and the second variable frequency motor drive the corresponding turntables to rotate through the corresponding supporting columns, the turntables in the upper and lower two rotation directions jointly drive the body to be pulled to rotate, the body to be pulled is formed in bidirectional constraint and dynamic clamping through the two turntables, the lower turntable drives the body to rotate as a whole, the upper turntable acts on the body to be pulled in reverse or at different speeds, so that the stress of each part of the body is more balanced, and the problem that the body to be pulled is only rotated by the friction force between the bottom and the turntable when the traditional single turntable is centered, and the body to be pulled is obviously shaken due to centrifugal force if the initial placement deviates from the center of the turntable, and the process needs to be repeatedly pressed and adjusted by hand, which is complicated and easy to deviate more and more, can be avoided, and when the humidity and hardness of the body are slightly different, the phenomenon that the body is thrown out due to excessive centrifugal force can be avoided, the difficulty of preliminary shaping of the body is reduced, and the difficulty of centering of the fixed body is further reduced.

[0018] Then the craftsman pulls the handle in the centering group, the handle drives the annular plate one rotation through the traction rope, at this time the annular plate one will drive the rotating disc to rotate synchronously, during the period, the limit slide rod will slide from the end away from the rotating disc center to the end close to the rotating disc center, during the period, the arc-shaped push plate can realize the effect of reducing friction to protect the arc-shaped push plate and the rotating disc, and the arc-shaped push plates on the upper and lower sides will be close to the rotating disc center synchronously, so as to realize the effect of pushing the blank from outside to inside together, and cooperating with the rotating disc on the upper and lower sides to preliminarily extrude and shape it, without pressing the to-be-pulled blank by two hands and gathering it to the rotating disc center, avoiding that the force is too large to cause the bottom of the blank to be too thin or the whole to be deformed, or the force is too small to cause the blank to be firmly adhered to the rotating disc, the blank is easy to slip when the rotating disc rotates, and the blank is unevenly stressed when shaping subsequently, and then the problems of wall thickness deviation or surface collapse occur. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, below the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0020] Figure 1 It is a three-dimensional structure schematic diagram in the embodiment of the present application.

[0021] Figure 2 It is a three-dimensional structure schematic diagram in the embodiment of the present application.

[0022] Figure 3 It is a three-dimensional structure schematic diagram of the mounting table and the centering part in the embodiment of the present application.

[0023] Figure 4 It is a three-dimensional structure schematic diagram of the supporting column, the rotating disc and the clamping part in the embodiment of the present application.

[0024] Figure 5 It is a three-dimensional structure schematic diagram of the clamping part in the embodiment of the present application.

[0025] Figure 6 It is a three-dimensional structure schematic diagram of the clamping part in the embodiment of the present application. Figure 5

[0026] Figure 7 It is a three-dimensional structure schematic diagram of the water basin and the clamping group in the embodiment of the present application.

[0027] Figure 8 It is a three-dimensional structure schematic diagram of the centering part in the embodiment of the present application.

[0028] Figure 9 ​Structure diagram for separating the structure of the center-finding group in the embodiment of the present application;

[0029] Figure 10 Structure diagram for separating the structure of the rotating disc, the annular plate one and the annular plate two in the embodiment of the present application.

[0030] The labels in the figure respectively represent: 1, workbench; 2, protective cover one; 21, variable frequency motor one; 3, electric push rod; 4, mounting table; 5, protective cover two; 51, variable frequency motor two; 6, support column; 7, rotating disc; 8, clamping part; 81, water basin; 82, collar; 821, magnetic sliding block; 83, scraper; 831, clamping plate; 84, clamping group; 841, extension plate; 842, plugboard; 843, limiting plate; 9, center-finding part; 91, support plate; 92, rotating disc; 93, annular plate one; 94, annular plate two; 95, center-finding group; 951, limiting sliding rod; 952, arc-shaped push plate; 953, support sliding rod; 954, connecting rod; 955, traction rope; 956, threading plate; 957, volute spring. DETAILED DESCRIPTION

[0031] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0032] The present application will be further described below with reference to the embodiments.

[0033] Embodiment:

[0034] Please refer to Figures 1-10 The present application provides a technical scheme: a ceramic strip drawing machine adopting a double-rotating disc staggered rotation structure, comprising:

[0035] The workbench 1 is provided with the protective cover one 2 at the lower end, and the electric push rod 3 is symmetrically installed at the upper end of the workbench 1, and the extension ends of the left and right two electric push rods 3 are jointly provided with the mounting table 4, and the mounting table 4 is provided with the protective cover two 5 at the upper end, and the support column 6 is rotationally installed at the opposite end of the workbench 1 and the mounting table 4, and the opposite end of the support column 6 on the upper and lower sides is provided with the rotating disc 7, and the workbench 1 is provided with the clamping part 8, and the mounting table 4 is provided with the center-finding part 9.

[0036] The clamping part 8 comprises water basins 81 symmetrically arranged on the front and back of the upper end of the workbench 1, the water basins 81 are rotationally sleeved on the outer wall of the corresponding support column 6, the outer wall of the lower support column 6 is provided with a positioning sliding groove, the positioning sliding groove is composed of an annular groove and a plurality of rectangular grooves uniformly distributed in a circle, a sleeve ring 82 is slidingly installed on the inner wall of the positioning sliding groove, scraper plates 83 are symmetrically installed on the outer wall of the sleeve ring 82, and clamping groups 84 are jointly arranged on the water basins 81 on the front and back sides.

[0037] The centering part 9 comprises a support plate 91 installed at the lower end of the mounting table 4, the support plate 91 is rotationally sleeved on the outer wall of the corresponding rotating disc 7, and the support plate 91 is an annular plate structure with a plurality of avoiding notches at the upper end, a rotating disc 92 is rotationally sleeved on the upper end of the support column 6 on the upper side, the rotating disc 92 is composed of two upper and lower discs and an annular connecting plate, an annular plate one 93 is installed on the upper end of the rotating disc 92, an annular plate two 94 is rotationally attached to the rotating disc 92 and is installed at the lower end of the mounting table 4, and a centering group 95 is jointly arranged on the support plate 91, the rotating disc 92, the annular plate one 93 and the annular plate two 94.

[0038] The centering group 95 comprises a plurality of matching sliding holes provided on the upper end of the rotating disc 92, the matching sliding holes are uniformly distributed in a circle, and the matching sliding holes are arc-shaped structures, a limiting sliding rod 951 is slidingly installed on the inner wall of the matching sliding hole, a plurality of arc-shaped push plates 952 are uniformly distributed in a circle and are arranged on the support plate 91 on the upper and lower sides, the opposite ends of the arc-shaped push plates 952 on the upper and lower sides are both helical inclined surfaces, a circular sliding hole is symmetrically provided on the upper end of the arc-shaped push plate 952 on the lower side, a supporting sliding rod 953 fixedly connected to the arc-shaped push plate 952 on the upper side is slidingly installed on the inner wall of the circular sliding hole, a compression spring is sleeved on the portion of the outer wall of the supporting sliding rod 953 between the two arc-shaped push plates 952 on the upper and lower sides, a connecting rod 954 is jointly installed on the outer wall of the arc-shaped push plate 952 on the upper side and the limiting sliding rod 951, the connecting rod 954 is a U-shaped structure, the connecting rod 954 slidingly penetrates through the support plate 91, and a plurality of rolling balls are uniformly embedded on the upper end of the arc-shaped push plate 952 on the upper side.

[0039] The centering group 95 further comprises a traction rope 955 wound on the outer wall of the annular plate one 93, a threading plate 956 is installed on the front side of the lower end of the mounting table 4, one end of the traction rope 955 away from the annular plate one 93 penetrates through the threading plate 956 and is provided with a handle, a volute spring 957 is arranged between the annular plate one 93 and the annular plate two 94, and the two ends of the volute spring 957 are fixedly connected to the annular plate one 93 and the annular plate two 94 respectively.

[0040] The clamping group 84 comprises extension plates 841 symmetrically installed on the outer wall of the water basin 81, and the front end of the rear extension plate 841 is provided with an insertion plate 842, and the upper end of the insertion plate 842 is provided with a butt joint groove, and the rear end of the front extension plate 841 is provided with an insertion groove corresponding to the insertion plate 842, and the lower end of the front extension plate 841 is provided with a mounting sliding groove communicated with the insertion groove.

[0041] The clamping group 84 further comprises a limiting plate 843 slidably mounted on the inner wall of the mounting sliding groove through a compression spring, and the limiting plate 843 is in an L-shaped structure, and the lower end of the horizontal section of the limiting plate 843 is provided with a positioning protruding plate corresponding to the butt joint groove.

[0042] A plurality of magnetic sliding blocks 821 are uniformly distributed on the inner wall of the sleeve ring 82 corresponding to the positioning sliding groove, and the inner wall of the water basin 81 is provided with two clamping grooves uniformly distributed in a circle, and the outer wall of the scraper 83 away from the support column 6 is provided with a receiving groove corresponding to the clamping groove, and the inner wall of the receiving groove is slidably mounted with a clamping plate 831 through a compression spring.

[0043] The inner wall of the protective cover one 2 is provided with a variable frequency motor one 21 through a motor base, the output shaft of the variable frequency motor one 21 is rotatably penetrated into the workbench 1 and fixedly connected to the corresponding support column 6, and a plurality of rectangularly and uniformly distributed waist-shaped sliding holes are formed in the workbench 1, and the inner wall of the protective cover two 5 is provided with a variable frequency motor two 51 through a motor base, the output shaft of the variable frequency motor two 51 is rotatably penetrated into the mounting table 4 and fixedly connected to the corresponding support column 6.

[0044] In specific implementation:

[0045] Firstly, the mounting table 4 in the present application is initially located above the workbench 1, at this time the workbench 1 and the mounting table 4 are in a mutually distant state, the height adjustment work can be performed by jointly controlling the mounting table 4 to ascend and descend through the left and right two electric push rods 3, and under the action of the compression spring, the plurality of arc-shaped push plates 952 on the upper and lower sides are respectively in a mutually distant state, and the sleeve ring 82 is initially located in the annular groove on the positioning sliding groove, it should be noted that the plurality of rectangular grooves on the positioning sliding groove are used for mounting the sleeve ring 82 and assisting in limiting and connecting the sleeve ring 82, in addition, the plurality of waist-shaped sliding holes on the upper end of the workbench 1 can be used for placing a hanging tool box or a water box, and can adapt to the activity space of related components, thereby facilitating the ceramic body pulling work.

[0046] The water basin 81 is clamped and fixed. First, the craftsman sets the front and rear two water basins 81 on the outer wall of the lower support column 6 in a symmetrical manner, then presses the left and right two limiting plates 843 upwards at the same time, and inserts the plug plate 842 on the rear extension plate 841 into the insertion slot of the front extension plate 841, so that the left and right two limiting plates 843 can be loosened. At this time, the limiting plate 843 of the clamping group 84 will slide downward along the corresponding installation sliding groove under the action of the compression spring, and the alignment lug plate on the horizontal section will be smoothly inserted into the butt joint groove on the plug plate 842, so as to realize the quick clamping and fixing effect of the two water basins 81. It should be noted that the water basin 81 is used to receive the mud dropped during the ceramic body pulling process, and the water basin 81 can be freely rotated at the upper end of the workbench 1 to facilitate position adjustment and other operations.

[0047] At the same time, the craftsman rotates the sleeve ring 82 to drive the two scrapers 83 to rotate synchronously around the corresponding support column 6 until the two scrapers 83 are rotated to positions corresponding to the clamping grooves on the inner wall of the water basin 81. The clamping plate 831 on the scraper 83 will be ejected under the action of the compression spring and clamped into the clamping groove on the inner wall of the water basin 81, so that the scraper 83 is relatively fixed with the water basin 81. At this time, the sleeve ring 82 and the two scrapers 83 will not rotate with the corresponding support column 6.

[0048] In the initial adjustment stage, first, the craftsman places the body to be pulled on the upper end of the lower turntable 7, and controls the left and right two electric push rods 3 to synchronously extend and retract to drive the installation table 4 to move up and down, so as to adjust the distance between the upper and lower two turntables 7, until the distance is adapted to the height of the body. If the distance between the upper and lower two turntables 7 is less than the distance between the upper and lower two arc-shaped push plates 952 in the initial state of moving away from each other, the lower arc-shaped push plates 952 will be extruded by the lower turntable 7 and move towards the upper arc-shaped push plates 952 under the guidance and support of the corresponding two support sliding rods 953 to compensate the space, so as to ensure that the lower arc-shaped push plates 952 are always attached to the lower turntable 7. The arc-shaped push plates 952 on the upper and lower sides can fill the cavity of the body as much as possible under the premise of ensuring the pulling effect. It should be noted that since the opposite ends of the arc-shaped push plates 952 on the upper and lower sides are spiral inclined surfaces, the distance between the arc-shaped push plates 952 within the spiral inclined surface can realize the overall plastic effect on the outer wall of the body.

[0049] In the center positioning stage, the variable frequency motor 21 and the variable frequency motor 51 are controlled to start working first. The variable frequency motor 21 and the variable frequency motor 51 drive the corresponding rotating disc 7 to rotate through the corresponding support column 6. It should be noted that the rotating directions of the rotating discs 7 on the upper and lower sides are opposite and the rotating speeds are adjustable. The rotating discs 7 on the upper and lower sides are used to drive the to-be-drawn blank to rotate. The to-be-drawn blank is formed by the two rotating discs 7 to realize bidirectional constraint and dynamic clamping. The rotating disc 7 on the lower side drives the whole blank to rotate. The rotating disc 7 on the upper side acts on the to-be-drawn blank in the reverse direction or at different rotating speeds, so that the stress of each part of the blank is more balanced, and the problem that the to-be-drawn blank only relies on the friction force between the bottom and the rotating disc 7 to rotate when the rotating disc 7 is centered in the traditional single rotating disc 7 is avoided. If the to-be-drawn blank is placed off-center initially, the to-be-drawn blank will shake obviously due to the centrifugal force, and needs to be adjusted by repeatedly pressing the hand. The process is complicated and easy to deviate more and more. The problem that the to-be-drawn blank is easily thrown out due to the excessive centrifugal force when the humidity and hardness of the blank have slight differences is also avoided. The initial shaping of the blank is difficult, and the difficulty of centering the fixed blank is further increased.

[0050] Then the craftsman pulls the handle in the centering group 95. The handle drives the annular plate 93 to rotate through the traction rope 955. The volute spring 957 starts to store energy when it is stretched. At this time, the annular plate 93 drives the rotating disc 92 to rotate synchronously. Under the cooperation of the matching sliding holes on the rotating disc 92, a plurality of limiting sliding rods 951 are pushed to slide along the corresponding matching sliding holes. During this period, the limiting sliding rods 951 slide from one end away from the center of the rotating disc 92 to one end close to the center of the rotating disc 92. During this period, a plurality of balls on the arc-shaped push plate 952 can realize the effect of reducing friction to protect the arc-shaped push plate 952 and the rotating disc 7. At the same time, a plurality of limiting sliding rods 951 will drive corresponding arc-shaped push plates 952 to move synchronously through corresponding L-shaped connecting rods 954. When the upper arc-shaped push plate 952 moves, it will drive the lower arc-shaped push plate 952 to move synchronously through the corresponding two supporting sliding rods 953. At this time, a plurality of arc-shaped push plates 952 on the upper and lower sides will move synchronously towards the center of the rotating disc 7, so as to realize the effect of pushing the blank from outside to inside to center and position, and cooperating with the upper and lower rotating discs 7 to preliminarily extrude and plasticize the blank. It is not necessary to press the to-be-drawn blank with both hands and gather it to the center of the rotating disc 7. The problem that the bottom of the blank is too thin or the whole blank is deformed due to excessive force, or the blank cannot be firmly adhered to the rotating disc 7 due to insufficient force is avoided. When the rotating disc 7 rotates, the blank is easy to slip, which will cause uneven stress on the blank during subsequent shaping, and further cause the problems of wall thickness deviation or surface collapse. It should be noted that the craftsman can control the distance of pulling the handle to control the centering and positioning of the arc-shaped push plate 952 on the to-be-drawn blank and the plastic effect of the blank. During this period, the craftsman can also appropriately spray clean water to keep the moisture of the surface of the to-be-drawn blank, which is convenient for subsequent plastic work of the blank.

[0051] When the centering work is completed, the blank will complete the initial plastic transformation into a regular and required cylindrical shape, and the blank is located at the center of the turntable 7, thereby avoiding the problem that if there is slight mechanical vibration or concentricity deviation of the single turntable 7, the asymmetry defect of the blank will be directly amplified, and the workload of the subsequent blank repairing process will be increased. After that, the craftsman can loosen the handle, and the annular plate one 93 and the rotating disc 92 will be reversed to restore to the original position under the restoring action of the vortex spring 957. At this time, under the cooperation of the matching sliding holes on the rotating disc 92, the several limiting sliding rods 951 will be pushed to slide reversely and restore to the original position along the corresponding matching sliding holes. During this period, the limiting sliding rods 951 will slide from one end close to the center of the rotating disc 92 to one end away from the center of the rotating disc 92, until the several arc-shaped push plates 952 are away from the blank and restore to the original position.

[0052] In the subsequent blank drawing stage, the variable frequency motor two 51 is turned off, and the installation table 4 is controlled to move upward to restore to the original position by the left and right electric push rods 3. The upper turntable 7 will also move upward to restore to the original position. At this time, the variable frequency motor one 21 continues to drive the lower support column 6 and the turntable 7 to rotate, and the craftsman can perform a series of operations such as opening the bottom, drawing high, repairing the shape, trimming the bottom and edge, and taking the blank during the rotation of the blank.

[0053] In the reset cleaning stage, when it is necessary to clean the mud in the water basin 81, the lower turntable 7 is first stopped by the craftsman, and then the two water basins 81 fixed with each other are manually rotated by an appropriate angle. The two water basins 81 will synchronously rotate the sleeve ring 82 through the two scrapers 83, until the several magnetic suction sliding blocks 821 on the sleeve ring 82 correspond to the several rectangular grooves on the alignment sliding groove, and then the two scrapers 83 are pressed downward at the same time. The two scrapers 83 will synchronously move the corresponding clamping plates 831 downward, respectively. Since the lower end of the outer wall of the clamping plate 831 is a wedge-shaped structure, the clamping plate 831 will be squeezed and compressed into the corresponding accommodating groove at this time, so that the two scrapers 83 can move downward smoothly and tightly fit on the inner wall of the water basin 81. Moreover, the several magnetic suction sliding blocks 821 on the sleeve ring 82 will be inserted into the corresponding rectangular grooves on the alignment sliding groove and connected to the support column 6 through magnetic suction, thereby realizing the effect of the circumferential connection between the sleeve ring 82 and the lower support column 6. With the synchronous rotation of the support column 6 and the turntable 7 driven by the variable frequency motor one 21, the support column 6 will synchronously rotate the two scrapers 83 through the sleeve ring 82, thereby realizing the effect that the two scrapers 83 jointly scrape and clean the mud on the inner wall of the water basin 81.

[0054] When the initial scraping and cleaning of the blank and the water basin 81 are completed, the variable frequency motor one 21 is turned off. Finally, when it is necessary to disassemble the water basin 81 for cleaning, the craftsman presses the limiting plate 843 upward at the same time, which will synchronously move the alignment protruding plate upward and disengage from the butt joint groove, so that the front and rear water basins 81 can be easily separated, and then they can be taken out for final cleaning.

[0055] To sum up, the application has the following advantages:

[0056] Advantage one, the water basin 81 clamping and fixing stage, the craftsman presses the left and right two limiting plates 843 upwards at the same time, and the plug plate 842 on the rear extension plate 841 is inserted into the plug slot of the front extension plate 841, so that the left and right two limiting plates 843 can be released, the limiting plate 843 of the clamping group 84 will slide downward along the corresponding installation sliding slot, and the alignment protruding plate on the horizontal section will be smoothly inserted into the butt joint groove on the plug plate 842, so that the quick clamping and fixing effect of the two water basins 81 is realized, the craftsman rotates the sleeve ring 82 to drive the two scrapers 83 to rotate synchronously around the corresponding support column 6, until the two scrapers 83 are rotated to the positions corresponding to the clamping grooves on the inner wall of the water basin 81 respectively, the clamping plate 831 on the scraper 83 will pop out and be clamped into the clamping groove on the inner wall of the water basin 81, so that the scraper 83 is relatively fixed with the water basin 81.

[0057] Advantage two, initial adjustment stage, first control the left and right two electric push rods 3 to synchronously stretch and retract to drive the installation table 4 to move up and down, so as to adjust the distance between the upper and lower two rotary tables 7, the arc-shaped push plates 952 on the upper and lower sides can fill the blank drawing cavity as much as possible under the premise of ensuring the blank drawing effect, since the opposite ends of the arc-shaped push plates 952 on the upper and lower sides are both helical inclined surface structures, the distance between the arc-shaped push plates 952 within the helical inclined surface limited range can realize the overall plastic effect on the outer wall of the blank body.

[0058] Advantage three, centering and positioning stage, the variable frequency motor one 21 and the variable frequency motor two 51 drive the corresponding rotary tables 7 to rotate through the corresponding support columns 6, the rotary tables 7 in the upper and lower two rotating directions are used to drive the to-be-drawn blank body to rotate, the to-be-drawn blank body can be formed by the two rotary tables 7 in a bidirectional constraint and dynamic clamping mode, the rotary table 7 on the lower side drives the whole blank body to rotate, and the rotary table 7 on the upper side acts on the to-be-drawn blank body in a reverse or different rotating speed, so that the stress of each part of the blank body is more balanced, and the problem that the to-be-drawn blank body only relies on the friction force between the bottom and the rotary table 7 to rotate when the traditional single rotary table 7 is used to find the center, and the to-be-drawn blank body will shake obviously due to the centrifugal force if it is placed deviated from the center of the rotary table 7, and needs to be adjusted by repeatedly pressing the hand, which is complicated and easy to deviate more and more, can be avoided, and the phenomenon that the blank body is thrown out due to excessive centrifugal force when there is a slight difference in the humidity and hardness of the blank body, which leads to the difficulty in the preliminary shaping of the blank body and further increases the difficulty in fixing the center of the blank body.

[0059] Advantage four, then pull the handle in the centering group 95 by the craftsman, the handle drives the annular plate one 93 to rotate through the traction rope 955, at this time the annular plate one 93 will drive the rotating disc 92 to rotate synchronously, during the period, the limiting slide rod 951 will slide from the end away from the center of the rotating disc 92 to the end close to the center of the rotating disc 92, during the period, the several balls on the arc-shaped push plate 952 can realize the effect of reducing friction to protect the arc-shaped push plate 952 and the rotating disc 7, and the several arc-shaped push plates 952 on the upper and lower sides will be synchronized to close to the center of the rotating disc 7, thereby realizing the effect of pushing the blank from the outside to the inside together, and cooperating with the rotating disc 7 on the upper and lower sides to preliminarily extrude the plasticity, without pressing the to-be-pulled blank by both hands and gathering to the center of the rotating disc 7, avoiding that the force is too large to cause the bottom of the blank to be too thin or the whole to be deformed, or the force is too small to cause the blank to be firmly adhered to the rotating disc 7, and the blank is easy to slip when the rotating disc 7 rotates, which will cause uneven stress on the blank during subsequent shaping, and then the problems of wall thickness deviation or surface collapse will occur.

[0060] Advantage five, after the centering positioning work is completed, the blank will complete the preliminary plasticity to a regular and required cylindrical shape, and the blank is located at the center of the rotating disc 7, thereby avoiding that for the blank requiring high symmetry, if there is slight mechanical vibration or concentricity deviation of the single rotating disc 7, the asymmetric defects of the blank will be directly enlarged, and the workload of the subsequent blank repairing process is increased.

[0061] Advantage six, in the reset and cleaning stage, the craftsman presses the two scrapers 83 downward at the same time, the two scrapers 83 will drive the corresponding clamping plates 831 to move downward synchronously, at this time the clamping plates 831 will be extruded and compressed into the corresponding accommodating grooves, so that the two scrapers 83 can move downward smoothly and tightly adhere to the inner wall of the water basin 81, and the several magnetic sliding blocks 821 on the sleeve ring 82 will be inserted into the corresponding rectangular grooves in the alignment sliding groove and connected to the support column 6 through magnetic attraction, thereby realizing the effect of circumferential connection between the sleeve ring 82 and the lower support column 6, with the support column 6 and the rotating disc 7 rotating synchronously driven by the variable frequency motor one 21, the support column 6 will drive the two scrapers 83 to rotate synchronously through the sleeve ring 82, thereby realizing the effect of scraping and cleaning the mud on the inner wall of the water basin 81 by the two scrapers 83.

[0062] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A ceramic potter's wheel employing a double-disc staggered rotation structure, characterized in that, include: The workbench (1) is equipped with a protective cover (2) at the lower end. Electric push rods (3) are symmetrically installed on the upper end of the workbench (1). The telescopic ends of the two electric push rods (3) are jointly installed with a mounting platform (4). A protective cover (5) is installed on the upper end of the mounting platform (4). Support columns (6) are rotatably installed on the opposite ends of the workbench (1) and the mounting platform (4). Turntables (7) are installed on the opposite ends of the support columns (6) on the upper and lower sides. A snap-fit ​​part (8) is provided on the workbench (1), and a centering part (9) is provided on the mounting platform (4). The snap-fit ​​part (8) includes a water basin (81) symmetrically arranged at the front and back of the upper end of the workbench (1). The water basin (81) is rotatably sleeved on the outer wall of the corresponding support column (6). An alignment groove is provided on the outer wall of the lower support column (6). A collar (82) is slidably installed on the inner wall of the alignment groove. Scrapers (83) are symmetrically installed on the outer wall of the collar (82). Snap-fit ​​assembly (84) is provided on the water basins (81) on both the front and back sides. The centering part (9) includes a support plate (91) installed at the lower end of the mounting platform (4), a rotating disk (92) is rotatably sleeved on the upper end of the support column (6) on the upper side, an annular plate (93) is installed on the upper end of the rotating disk (92), and an annular plate (94) is installed on the lower end of the mounting platform (4) and rotates and fits against the rotating disk (92). A centering assembly (95) is provided on the support plate (91), the rotating disk (92), the annular plate (93) and the annular plate (94). Among them, the inner wall of the protective cover one (2) is equipped with a variable frequency motor one (21) through a motor seat. The output shaft of the variable frequency motor one (21) rotates through the workbench (1) and is fixedly connected to the corresponding support column (6). The workbench (1) is provided with several waist-shaped sliding holes that are evenly distributed in a rectangular shape. The inner wall of the protective cover two (5) is equipped with a variable frequency motor two (51) through a motor seat. The output shaft of the variable frequency motor two (51) rotates through the mounting platform (4) and is fixedly connected to the corresponding support column (6). Among them, the variable frequency motor one (21) and variable frequency motor two (51) drive the corresponding turntable (7) to rotate through the corresponding support column (6). The upper and lower turntables (7) rotate in opposite directions and the speed is adjustable. The upper and lower turntables (7) together drive the blank to be pulled to rotate.

2. A ceramic potter's wheel with a double-disc staggered rotation structure according to claim 1, characterized in that: The centering assembly (95) includes several matching sliding holes located at the upper end of the rotating disk (92). The several matching sliding holes are evenly distributed in a circle. A limit sliding rod (951) is slidably installed on the inner wall of the matching sliding hole. Several arc-shaped push plates (952) are evenly distributed in a circle on the upper and lower sides of the support plate (91). The upper end of the lower arc-shaped push plate (952) is symmetrically provided with circular sliding holes. A fixed connection to the upper side is slidably installed on the inner wall of the circular sliding hole. The support slide rod (953) on the arc-shaped push plate (952) has a compression spring sleeved on the outer wall of the support slide rod (953) between the upper and lower arc-shaped push plates (952). A connecting rod (954) is installed on the outer wall of the upper arc-shaped push plate (952) and the corresponding limiting slide rod (951). The connecting rod (954) slides through the support plate (91). A number of balls are also evenly embedded at the upper end of the upper arc-shaped push plate (952).

3. A ceramic potter's wheel with a double-disc staggered rotation structure according to claim 2, characterized in that: The centering assembly (95) also includes a traction rope (955) wound on the outer wall of the first annular plate (93). A threading plate (956) is installed on the front side of the lower end of the mounting platform (4). The end of the traction rope (955) away from the first annular plate (93) passes through the threading plate (956) and is equipped with a handle. A spiral spring (957) is provided between the first annular plate (93) and the second annular plate (94). The two ends of the spiral spring (957) are fixedly connected to the first annular plate (93) and the second annular plate (94) respectively.

4. A ceramic potter's wheel with a double-disc staggered rotation structure according to claim 1, characterized in that: The snap-fit ​​assembly (84) includes an extension plate (841) symmetrically installed on the outer wall of the basin (81). The front end of the rear extension plate (841) is equipped with a plug plate (842). The upper end of the plug plate (842) is provided with a mating groove. The rear end of the front extension plate (841) is provided with a slot corresponding to the plug plate (842). The lower end of the front extension plate (841) is provided with an installation slide groove that connects to the slot.

5. A ceramic potter's wheel with a double-disc staggered rotation structure according to claim 4, characterized in that: The snap-fit ​​assembly (84) also includes a limiting plate (843) that is slidably installed on the inner wall of the mounting groove by a compression spring. The limiting plate (843) has an L-shaped structure, and the lower end of the horizontal section of the limiting plate (843) is equipped with an alignment protrusion corresponding to the mating groove.

6. A ceramic potter's wheel with a double-disc staggered rotation structure according to claim 1, characterized in that: The inner wall of the collar (82) is equipped with several magnetic sliders (821) that are evenly distributed in a circle. The inner wall of the water basin (81) is provided with two slots that are evenly distributed in a circle. The outer wall of the scraper (83) away from the support column (6) is provided with a receiving groove corresponding to the slot. The inner wall of the receiving groove is slidably installed with a plate (831) by a compression spring.

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