Automated clay processing equipment for ceramic production
By designing automated clay processing equipment for ceramic production, rolling balls and pressure balls are used to roll, mix and beat the clay, which solves the stress release problem of clay during the firing process and reduces the shrinkage and deformation of the products. rate and improve production efficiency.
Patent Information
- Application Number
- CN202410573888.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2044-05-10
AI Technical Summary
The existing clay processing methods, especially vacuum clay training machines, cause stress release of clay when firing at high temperatures, causing uneven deformation of products, and cutting is required when mud is produced, affecting efficiency.
An automated clay processing equipment for ceramic production is designed, including a support frame, a clay mixing component, a blanking component and a lower smashing component. The driving motor drives the rotating rod to rotate, and rolling balls and pressure balls are used to crush the clay. Mixing and beating, imitating manual extrusion and beating, achieve uniform mixing of clay and remove stress.
This equipment can effectively reduce the stress release of clay during the firing process, reduce the shrinkage and deformation rate of products, improve the uniformity and quality of clay, and at the same time improve production efficiency through automated cutting and discharging processes.
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Figure CN118322341B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of clay processing, in particular to automated clay processing equipment for ceramic production. Background Art
[0002] Ceramic production requires that the raw materials be turned into mud-like substances through processes such as adding water, stirring, and crushing, and then carefully processed and treated to become flexible clay. Clay training refers to a process before porcelain is made. The process is to soak the white cloth in a pool of water. Use a wooden shovel to stir continuously, float away the scum, sieve it with a horsetail fine basket, and after sedimentation, use a fine silk bag to fill the slurry with water, put it in a bottomless wooden box, press it with a stone, remove the water and become mud, and then use a shovel to repeatedly turn it over to make it pure and firm. The existing mud training methods generally include manual mud training and vacuum mud training. However, the mud refined by the vacuum mud training machine has latent stress in its particles because of its directional arrangement. These stresses will be released during high-temperature firing, causing various parts of the blank to shrink unevenly, thereby causing the product to shrink and increase the deformation rate. In addition, the clay needs to be cut when the mud training machine is discharged. For this reason, we propose an automated clay processing equipment for ceramic production. Summary of the invention
[0003] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an automatic processing equipment for clay used in ceramic production.
[0004] To achieve the above purpose, the technical solution adopted by the present invention is: automated clay processing equipment for ceramic production, including a support frame, a clay mixing assembly is arranged on the upper end of the support frame, the clay mixing assembly includes a mixing barrel and a driving motor fixed to the support frame, two groups of rotating rods are rotatably connected to the inner side of the support frame, the output shaft of the driving motor is fixedly connected to the rotating rod, a lower rod is fixedly connected to the outer side of the rotating rod, a rolling ball is rotatably connected between the two groups of the lower rods, a material discharge assembly for facilitating the cutting of the clay is arranged on the outer side of the mixing barrel, and a lower smashing assembly is arranged between the two groups of the rotating rods.
[0005] Preferably, the outer sides of the two groups of rotating rods are fixedly connected with a cleaning ring, the upper ends of the cleaning rings are fixedly connected with two groups of extrusion rods, the extrusion rods are tilted upward, the cleaning rings are semicircular, and the cleaning rings are in contact with the inner wall of the mixing barrel.
[0006] Preferably, the lower-smashing assembly includes a connecting shaft, which is fixedly connected to two groups of rotating rods, the connecting shaft is U-shaped, the outer side of the connecting shaft is fixedly connected to a connecting ring, the outer side of the connecting ring is fixedly connected to a vertical rod, the outer side of the vertical rod is slidably connected to a pressure ball, the upper end of the pressure ball is provided with a sliding hole, the upper end of the vertical rod is fixedly connected to a top plate, the lower end of the connecting ring is fixedly connected to a first pad, and the first pad is fitted with the rolling ball.
[0007] Preferably, the unloading assembly includes a slide cylinder fixedly connected to the mixing barrel, a baffle is fixedly connected to the inner side of the slide cylinder, a sliding shaft is slidably connected to the inner side of the baffle, a cleaning block is fixedly connected to one end of the sliding shaft, the cleaning block extends to the inner side of the mixing barrel, one side of the cleaning block is an inclined surface, and a first spring is fixedly connected between the baffle and the cleaning block.
[0008] Preferably, the inner side of the slide cylinder is slidably connected to a slide shell, the lower end of the slide shell is fixedly connected to a connecting rod, the lower end of the mixing barrel is fixedly connected to a discharge box, one end of the connecting rod is fixedly connected to a guard plate, a slide groove is provided at the lower end of the slide cylinder, and the connecting rod passes through the slide groove and is fixedly connected to the slide shell.
[0009] Preferably, a sliding column is slidably connected to the inner side of the sliding shell, a sliding opening is opened on one side of the sliding shell, a limiting block is fixedly connected to the outer side of the sliding column, the limiting block is adapted to the sliding opening, a clamping block is fixedly connected to the rear end of the sliding column, a baffle is fixedly connected to the front end of the sliding shaft, a clamping rod is fixedly connected to the front end of the baffle, the clamping rod is L-shaped, and the clamping rod is adapted to the clamping block.
[0010] Preferably, a bayonet is provided at the lower end of the mixing barrel, a sealing sheet is provided on the inner side of the bayonet, the upper end of the sealing sheet is fixedly connected to a second pad, the lower end of the sealing sheet is fixedly connected to a rotating shell, the inner side of the rotating shell is rotatably connected to a swivel, the lower end of the swivel is fixedly connected to a threaded rod, the lower end of the discharge box is fixedly connected to a threaded barrel, the threaded rod is threadedly connected to the inner side of the threaded barrel, the lower end of the threaded rod is fixedly connected to a turning handle, the lower end of the sealing sheet is fixedly connected to a second spring, and the second spring is arranged on the outer side of the threaded rod.
[0011] Preferably, a blade is fixedly connected to the rear end of the guard plate, the guard plate is L-shaped, and a hidden shell is fixedly connected to the rear end of the feed box, and the hidden shell is adapted to the blade.
[0012] Preferably, the lower end of the connecting rod is fixedly connected to a connecting plate, the rear end of the connecting plate is fixedly connected to a third spring, the inner side of the support frame is fixedly connected to a protective shell, the protective shell is slidably connected to the connecting rod, and the rear end of the third spring is fixedly connected to the support frame.
[0013] Compared with the prior art, the present invention provides an automated clay processing device for ceramic production, which has the following beneficial effects:
[0014] 1. The automatic processing equipment for clay used in ceramic production can drive the rotating rod to rotate through a driving motor, and can use the rolling ball clay to roll and mix, which is convenient for the mixing of clay. The cleaning ring can scoop up the clay stuck to the inner wall of the mixing barrel, and then the extrusion rod can be used to gather the scooped clay, which is convenient for the rolling ball to roll the clay next time. The pressure ball slides on the vertical rod and can follow the position of the rolling ball to hit the connecting ring or the clay, further accelerating the mixing effect of the clay. At the same time, the rolling ball will squeeze the cleaning block during the movement, and the clay on the outside of the rolling ball will be scraped off through the inclined surface of the cleaning block, which can imitate manual extrusion and hammering to practice the clay.
[0015] 2. The automatic processing equipment for ceramic clay used in the production of ceramics, when the clay needs to be taken out, the second pad is moved downward by turning the handle to open the bayonet. At this time, the clay can be squeezed by the rolling ball to facilitate the extrusion of the clay, and the sliding column is pushed to make the limit block slide to the inner side of the sliding shell through the sliding mouth, and then the sliding column is rotated to make the limit block clamped into the inner side of the sliding shell. At this time, the clamping block will be clamped into the inner side of the clamping rod to connect the sliding shaft with the sliding column. At this time, the rolling ball squeezes the cleaning block to push the sliding column to slide through the sliding shaft, thereby driving the sliding shell to slide, and the connecting rod drives the guard plate to slide, and the blade and the clay are used for cutting. At the same time, the third spring will pull the connecting plate to facilitate the connecting rod to return to its original position, and the clay can be cut by the blade when the clay is discharged, which is convenient for the discharge of the clay. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0017] Figure 2 The present invention is cut away Figure 1 ;
[0018] Figure 3 The present invention is cut away Figure 2 ;
[0019] Figure 4 This is a schematic diagram of the structure of the lowering assembly of the present invention;
[0020] Figure 5 Cutaway view of the blanking assembly of the present invention Figure 1 ;
[0021] Figure 6 Cutaway view of the blanking assembly of the present invention Figure 2 ;
[0022] Figure 7 Cutaway view of the blanking assembly of the present invention Figure 3 ;
[0023] Figure 8 Cutaway view of the blanking assembly of the present invention Figure 4 ;
[0024] Fig. 9 For the present invention Figure 8 A magnified view of the structure of part A;
[0025] Fig.10 For the present invention Figure 8 Enlarged view of the structure of part B.
[0026] In the figure: 1, support frame; 2, mud mixing assembly; 21, mixing barrel; 22, driving motor; 23, rotating rod; 24, lower rod; 25, rolling ball; 26, cleaning ring; 27, extrusion rod; 28, lower smashing assembly; 281, connecting shaft; 282, connecting ring; 283, vertical rod; 284, pressing ball; 285, sliding hole; 286, top plate; 287, first pad; 3, material lowering assembly; 31, slide cylinder; 32, baffle; 33, cleaning block; 34, slide shaft; 35, first spring; 36, baffle; 3 7. Clamping rod; 38. Sliding shell; 39. Connecting rod; 310. Guard plate; 311. Feed box; 312. Sealing sheet; 313. Second pad; 314. Clamping mouth; 315. Rotating shell; 316. Rotating ring; 317. Threaded rod; 318. Threaded barrel; 319. Turning handle; 320. Second spring; 321. Hidden shell; 322. Blade; 323. Guard shell; 324. Connecting plate; 325. Third spring; 326. Sliding column; 327. Limiting block; 328. Clamping block; 329. Sliding mouth. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0028] See also Figure 1 - Fig.10 , an automated clay processing equipment for ceramic production includes a support frame 1, a clay mixing assembly 2 is arranged on the upper end of the support frame 1, the clay mixing assembly 2 includes a mixing barrel 21 and a driving motor 22 fixed to the support frame 1, two groups of rotating rods 23 are rotatably connected to the inner side of the support frame 1, the output shaft of the driving motor 22 is fixedly connected to the rotating rod 23, a lower rod 24 is fixedly connected to the outer side of the rotating rod 23, a rolling ball 25 is rotatably connected between the two groups of lower rods 24, a feeding assembly 3 for conveniently cutting clay is arranged on the outer side of the mixing barrel 21, and a lower smashing assembly 28 is arranged between the two groups of rotating rods 23.
[0029] In this embodiment, the outer sides of the two groups of rotating rods 23 are fixedly connected with a cleaning ring 26, and the upper ends of the cleaning rings 26 are fixedly connected with two groups of squeezing rods 27. The squeezing rods 27 are upwardly tilted. The cleaning rings 26 are semicircular and fit against the inner wall of the mixing barrel 21.
[0030] Specifically, the clay that has adhered to the inner wall of the mixing barrel 21 can be scooped up by the cleaning ring 26, and then the scooped clay can be gathered together by the squeezing rod 27, so that the rolling ball 25 can roll the clay next time.
[0031] In this embodiment, the lower striking assembly 28 includes a connecting shaft 281, which is fixedly connected to the two groups of rotating rods 23. The connecting shaft 281 is U-shaped, and a connecting ring 282 is fixedly connected to the outer side of the connecting shaft 281, and a vertical rod 283 is fixedly connected to the outer side of the connecting ring 282. A pressure ball 284 is slidably connected to the outer side of the vertical rod 283. A sliding hole 285 is provided at the upper end of the pressure ball 284, and a top plate 286 is fixedly connected to the upper end of the vertical rod 283. The lower end of the connecting ring 282 is fixedly connected to a first pad 287, and the first pad 287 is fitted with the rolling ball 25.
[0032] Specifically, the pressing ball 284 slides on the vertical rod 283 and can follow the position of the rolling ball 25 to hit the connecting ring 282 or the clay, thereby further accelerating the mixing effect of the clay.
[0033] In this embodiment, the unloading component 3 includes a slide cylinder 31 fixedly connected to the mixing barrel 21, a baffle 32 is fixedly connected to the inner side of the slide cylinder 31, a sliding shaft 34 is slidably connected to the inner side of the baffle 32, and a cleaning block 33 is fixedly connected to one end of the sliding shaft 34. The cleaning block 33 extends to the inner side of the mixing barrel 21, and one side of the cleaning block 33 is an inclined surface. A first spring 35 is fixedly connected between the baffle 32 and the cleaning block 33.
[0034] Specifically, the rolling ball 25 will squeeze the cleaning block 33 during the movement, and the clay on the outer side of the rolling ball 25 will be scraped off through the inclined surface of the cleaning block 33, so as to ensure the cleanliness of the surface of the rolling ball 25.
[0035] In this embodiment, the inner side of the slide cylinder 31 is slidably connected to a slide shell 38, the lower end of the slide shell 38 is fixedly connected to a connecting rod 39, the lower end of the mixing barrel 21 is fixedly connected to a discharge box 311, one end of the connecting rod 39 is fixedly connected to a guard plate 310, and a slide groove is provided at the lower end of the slide cylinder 31, and the connecting rod 39 passes through the slide groove and is fixedly connected to the slide shell 38.
[0036] Specifically, the connecting rod 39 can be driven to move by the sliding shell 38, thereby driving the guard plate 310 to move, so that one end of the discharge box 311 is opened, which is convenient for the discharge of clay.
[0037] In this embodiment, a sliding column 326 is slidably connected to the inner side of the sliding shell 38, a sliding opening 329 is opened on one side of the sliding shell 38, a limiting block 327 is fixedly connected to the outer side of the sliding column 326, the limiting block 327 is adapted to the sliding opening 329, a clamping block 328 is fixedly connected to the rear end of the sliding column 326, a blocking piece 36 is fixedly connected to the front end of the sliding shaft 34, a clamping rod 37 is fixedly connected to the front end of the blocking piece 36, the clamping rod 37 is L-shaped, and the clamping rod 37 is adapted to the clamping block 328.
[0038] Specifically, push the sliding post 326 to make the limit block 327 slide to the inner side of the sliding shell 38 through the sliding opening 329, and then rotate the sliding post 326 to make the limit block 327 snap into the inner side of the sliding shell 38. At this time, the snap block 328 will snap into the inner side of the snap rod 37, so that the sliding shaft 34 is connected to the sliding post 326, so that the sliding post 326 can move conveniently following the movement of the sliding shaft 34.
[0039] In this embodiment, a bayonet 314 is provided at the lower end of the mixing barrel 21, and a sealing sheet 312 is provided on the inner side of the bayonet 314. The upper end of the sealing sheet 312 is fixedly connected to the second pad 313, and the lower end of the sealing sheet 312 is fixedly connected to a rotating shell 315. The inner side of the rotating shell 315 is rotatably connected to a rotating ring 316, and the lower end of the rotating ring 316 is fixedly connected to a threaded rod 317. The lower end of the discharge box 311 is fixedly connected to a threaded barrel 318, and the threaded rod 317 is threadedly connected to the inner side of the threaded barrel 318. The lower end of the threaded rod 317 is fixedly connected to a turning handle 319, and the lower end of the sealing sheet 312 is fixedly connected to a second spring 320, and the second spring 320 is arranged on the outer side of the threaded rod 317.
[0040] Specifically, the sealing sheet 312 can block the bayonet 314 to facilitate the mixing of the clay by the rolling ball 25, and the turning handle 319 can drive the second pad 313 to move to facilitate the opening and closing of the bayonet 314 and the extrusion of the clay, and the blade 322 can cut the clay to facilitate the collection of the clay.
[0041] In this embodiment, the rear end of the guard plate 310 is fixedly connected with a blade 322 , the guard plate 310 is L-shaped, and the rear end of the unloading box 311 is fixedly connected with a hidden shell 321 , and the hidden shell 321 is adapted to the blade 322 .
[0042] Specifically, the blade 322 can be wrapped by the hidden shell 321 to protect the blade 322 .
[0043] In this embodiment, the lower end of the connecting rod 39 is fixedly connected to the connecting plate 324, the rear end of the connecting plate 324 is fixedly connected to the third spring 325, the inner side of the support frame 1 is fixedly connected to the protective shell 323, the protective shell 323 is slidably connected to the connecting rod 39, and the rear end of the third spring 325 is fixedly connected to the support frame 1.
[0044] Specifically, the connecting rod 39 can be clamped by the protective shell 323 to prevent the connecting rod 39 from shaking, and the connecting rod 39 can be driven to move by the third spring 325 to facilitate the connecting rod 39 to return to its original position.
[0045] When in use, clay and water of varying proportions are added to the inner side of the mixing barrel 21, the driving motor 22 is started to drive the rotating rod 23 to rotate, and then the lower rod 24 is driven to rotate, so that the rolling ball 25 rolls and mixes the clay inside the mixing barrel 21, and at the same time the lower rod 24 drives the cleaning ring 26 to rotate, and the cleaning ring 26 can scoop up the clay stuck to the inner wall of the mixing barrel 21, and then the squeezing rod 27 is used to gather the scooped clay, and at the same time the rotating rod 23 drives the lower smashing assembly 2 8 rotates, so that the pressure ball 284 slides on the vertical rod 283. When the rolling ball 25 is located at the lowermost end of the inner side of the mixing barrel 21, the pressure ball 284 slides down from the vertical rod 283 to hit the connecting ring 282, so that the first pad 287 vibrates the rolling ball 25. When the rolling ball 25 moves to the uppermost end of the mixing barrel 21, the pressure ball 284 slides down from the side close to the connecting ring 282 to hit the clay. At the same time, the rolling ball 25 squeezes the cleaning block 33 during the movement, and the cleaning block 33 is cleaned by the first pad 287. The inclined surface of the cleaning block 33 scrapes off the clay on the outside of the rolling ball 25. When the clay needs to be taken out, the turning handle 319 is turned to drive the threaded rod 317 to rotate inside the threaded cylinder 318, so that the rotating ring 316 rotates inside the rotating shell 315, so that the sealing sheet 312 drives the second pad 313 to move downward, so that the bayonet 314 is opened, and at the same time, the second spring 320 is contracted, pushing the sliding column 326 to move to the inside of the sliding cylinder 31, so that the limit block 327 slides to the sliding shell through the sliding opening 329 The inner side of 38, and then rotate the sliding column 326 to make the limit block 327 stuck in the inner side of the sliding shell 38, at this time the block 328 will be stuck in the inner side of the clamping rod 37, at this time the rolling ball 25 squeezes the cleaning block 33 to push the sliding column 326 to slide through the sliding shaft 34, and then drive the sliding shell 38 to slide, so that the connecting rod 39 drives the guard plate 310 to slide, and the blade 322 is used to cut with the clay, and at the same time the third spring 325 pulls the connecting plate 324 to facilitate the connecting rod 39 to return to its original position.
[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An automated clay processing device for ceramic production, comprising a support frame (1), characterized in that: A clay mixing assembly (2) is provided at the upper end of the support frame (1), and the clay mixing assembly (2) comprises a mixing barrel (21) and a driving motor (22) fixed to the support frame (1); two groups of rotating rods (23) are rotatably connected to the inner side of the support frame (1); the output shaft of the driving motor (22) is fixedly connected to the rotating rod (23); a lower rod (24) is fixedly connected to the outer side of the rotating rod (23); a rolling ball (25) is rotatably connected between the two groups of lower rods (24); and a material cutting assembly (3) for conveniently cutting clay is provided on the outer side of the mixing barrel (21). A lowering assembly (28) is provided between the two groups of rotating rods (23), the lowering assembly (28) comprising a connecting shaft (281), the connecting shaft (281) being fixedly connected to the two groups of rotating rods (23), the connecting shaft (281) being U-shaped, the outer side of the connecting shaft (281) being fixedly connected to a connecting ring (282), the outer side of the connecting ring (282) being fixedly connected to a vertical rod (283), the outer side of the vertical rod (283) being slidably connected to a pressing ball (284), the upper end of the pressing ball (284) being provided with a sliding hole (285), the vertical rod ( The upper end of the connecting ring (283) is fixedly connected to a top plate (286), the lower end of the connecting ring (282) is fixedly connected to a first pad (287), the first pad (287) is fitted with the rolling ball (25), the unloading assembly (3) comprises a slide cylinder (31) fixedly connected to the mixing barrel (21), the inner side of the slide cylinder (31) is fixedly connected to a baffle (32), the inner side of the baffle (32) is slidably connected to a slide shaft (34), one end of the slide shaft (34) is fixedly connected to a cleaning block (33), and the cleaning block (33) extends to the mixing barrel (21). On the inner side, one side of the cleaning block (33) is an inclined surface, a first spring (35) is fixedly connected between the baffle plate (32) and the cleaning block (33), a sliding shell (38) is slidably connected to the inner side of the sliding cylinder (31), a connecting rod (39) is fixedly connected to the lower end of the sliding shell (38), a material discharge box (311) is fixedly connected to the lower end of the mixing barrel (21), one end of the connecting rod (39) is fixedly connected to a guard plate (310), a sliding groove is provided at the lower end of the sliding cylinder (31), and the connecting rod (39) passes through the sliding groove and is fixedly connected to the sliding shell (38).
2. The automatic processing equipment for ceramic clay production according to claim 1, characterized in that: The outer sides of the two groups of rotating rods (23) are fixedly connected to a cleaning ring (26); the upper ends of the cleaning rings (26) are fixedly connected to two groups of squeezing rods (27); the squeezing rods (27) are tilted upwards; the cleaning rings (26) are semicircular in shape; and the cleaning rings (26) are in contact with the inner wall of the mixing barrel (21).
3. The automatic clay processing equipment for ceramic production according to claim 1, characterized in that: The inner side of the sliding shell (38) is slidably connected to a sliding column (326); a sliding opening (329) is provided on one side of the sliding shell (38); the outer side of the sliding column (326) is fixedly connected to a limiting block (327); the limiting block (327) is matched with the sliding opening (329); the rear end of the sliding column (326) is fixedly connected to a clamping block (328); the front end of the sliding shaft (34) is fixedly connected to a baffle (36); the front end of the baffle (36) is fixedly connected to a clamping rod (37); the clamping rod (37) is L-shaped; the clamping rod (37) is matched with the clamping block (328).
4. The automatic clay processing equipment for ceramic production according to claim 3 is characterized in that: The lower end of the mixing barrel (21) is provided with a bayonet (314), the inner side of the bayonet (314) is provided with a sealing sheet (312), the upper end of the sealing sheet (312) is fixedly connected to a second pad (313), the lower end of the sealing sheet (312) is fixedly connected to a rotating shell (315), the inner side of the rotating shell (315) is rotatably connected to a rotating ring (316), the lower end of the rotating ring (316) is fixedly connected to a threaded rod (317), the lower end of the discharge box (311) is fixedly connected to a threaded barrel (318), the threaded rod (317) is threadedly connected to the inner side of the threaded barrel (318), the lower end of the threaded rod (317) is fixedly connected to a rotating handle (319), the lower end of the sealing sheet (312) is fixedly connected to a second spring (320), and the second spring (320) is arranged on the outer side of the threaded rod (317).
5. The automatic clay processing equipment for ceramic production according to claim 4, characterized in that: A blade (322) is fixedly connected to the rear end of the guard plate (310); the guard plate (310) is L-shaped; a hidden shell (321) is fixedly connected to the rear end of the material discharge box (311); the hidden shell (321) is adapted to fit the blade (322).
6. The automatic clay processing equipment for ceramic production according to claim 1, characterized in that: The lower end of the connecting rod (39) is fixedly connected to a connecting plate (324), the rear end of the connecting plate (324) is fixedly connected to a third spring (325), the inner side of the support frame (1) is fixedly connected to a protective shell (323), the protective shell (323) is slidably connected to the connecting rod (39), and the rear end of the third spring (325) is fixedly connected to the support frame (1).
Citation Information
Patent Citations
Ceramic clay stirring device
CN115229972A
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CN215903727U
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