Antibacterial and easy-to-clean ceramic preparation equipment and process

Abstract

The invention relates to the field of ceramic forming, in particular to antibacterial easy-to-clean ceramic preparation equipment and a process, the structure comprises rolling forming equipment, the rolling forming equipment comprises a machine body and a rotating seat which is arranged on the machine body and drives a mold to rotate, a discharging assembly is further movably arranged on the machine body, and the discharging assembly comprises a scraping plate and a contact wheel which is in transmission connection with the scraping plate; the contact wheel is used for making contact with a rotating mold, the rotating contact wheel drives the scraper to move away from the center of the mold, the moving assembly comprises an output base, and the output base drives the discharging assembly to vertically move. The speed reduction gear set drives the scraper to move away from the mold, the scraper is gradually and transversely pulled out in the material overflowing stage and the shaping stage till being pulled out, the situation that pug and the scraper are stuck and pulled away when the scraper is directly pulled out is avoided, and the integrity of the top face of the formed pug is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of ceramic forming, and in particular to antibacterial and easy-to-clean ceramic preparation equipment and technology. Background Art

[0002] Antibacterial and easy-to-clean ceramics are a type of ceramic material with special functions. They are endowed with antibacterial and easy-to-clean properties by introducing specific chemical compositions or structures on the ceramic surface. Ceramic rolling forming machines are commonly used equipment in ceramic forming. The rolling head and the mold containing the clay rotate in different directions around their own axes and move closer to each other, and the rolling pressing force is used to extend and press the plastic clay placed in the model into shape.

[0003] During the ceramic rolling process, the scraper is responsible for scraping off the overflowed clay. However, whether it is manual or machine-controlled, the existing processing end stage is usually to directly pull out or lift up the scraper. When the clay used has a high water content or high plasticity, the clay has a large extension deformation and is easily deformed by force during rolling, thereby increasing the contact adhesion between the scraper and the scraper. This causes some clay and the scraper to stick and be pulled away when the scraper is pulled away, thereby affecting the integrity of the top surface of the formed clay and making the subsequent glaze forming uneven. Summary of the invention

[0004] In view of the above problems, the present invention provides an antibacterial and easy-to-clean ceramic preparation equipment and process, the structure of which includes a rolling forming equipment, a first sintering equipment, a glazing equipment and a second sintering equipment arranged in sequence according to the process steps, and the workpieces are transported between the various stages through a conveyor line. The rolling forming equipment is used to roll the mold with the clay placed thereon; the rolling forming equipment includes a machine body and a machine head that swings on the machine body through a working arm, the machine body is provided with a rotating seat for driving the mold to rotate, the machine head is provided with a rolling head and drives the rolling head to rotate to roll the clay in the mold, and the machine body is also movably equipped with A discharge assembly, wherein the discharge assembly includes a scraper for moving to the mold to scrape off mud overflowing from the mold; the discharge assembly includes a contact wheel that is transmission-connected to the scraper, the contact wheel is used to contact the mold and is driven to rotate by the rotating mold, and the rotating contact wheel drives the scraper to move away from the center of the mold; the discharge assembly includes a mounting shell and is movably mounted on the machine body through a moving assembly, the moving assembly is linked with a working arm, the moving assembly includes an output seat, the working arm drives the output seat of the moving assembly to move toward the mold below, and the output seat drives the discharge assembly to move vertically.

[0005] Furthermore, the moving component swings and moves on the machine body, and the horizontal height after the moving component drives the discharging component to swing and rise is greater than or equal to the horizontal height after the rolling head is swung and risen by the working arm. The moving component includes a double parallel mechanism formed by a plurality of connecting rods for driving the output seat to move vertically; the discharging component retains the freedom of vertical movement under the connection of the moving component, as well as the freedom of movement in the horizontal direction projected by the perpendicular bisector of the connecting rod swing axis, and the discharging component moves vertically and the moving distance in the horizontal direction is less than the radius of the contact wheel.

[0006] Furthermore, the moving assembly includes a stand, and the double parallel mechanism includes two front group swing arms hingedly connected to the stand, a parallel side connecting rod is connected between the ends of the two front group swing arms, and a reset elastic member is provided between the front group swing arms and the stand, and the reset elastic member provides an elastic force to drive the front group swing arms to swing upward; the double parallel mechanism also includes a rear group first swing arm and a rear group second swing arm, the middle part of the rear group first swing arm and one end of the rear group second swing arm are respectively hingedly connected to the ends of the two front group swing arms, one end of the rear group first swing arm and the rear group second swing arm are hingedly connected to the output seat, and the other end of the rear group first swing arm is connected to the stand through a synchronous connecting rod; the rear group first swing arm and the rear group second swing arm at the end of the front group swing arm point in the direction of the stand.

[0007] Furthermore, an input gear is provided on the contact wheel, a reduction gear group is provided on the mounting shell, a driving frame is provided on the scraper, an output gear is provided on the mounting shell at the side end of the driving frame, which is meshed with the driving frame, the output gear is connected with the reduction gear group, and the input gear is transmission-connected with the driving frame and the scraper through the reduction gear group; the contact wheel is swingably mounted on the mounting shell through a swinging frame, and the swinging frame drives the contact wheel to swing downward to disengage the input gear from the reduction gear group, and a torsional elastic member is provided between the rear end of the driving frame and the mounting shell to provide elastic force to reset the driving frame and the scraper toward the mold direction.

[0008] Further, the input gear is a bevel gear, and the reduction gear set includes a first contact gear, a synchronous driving wheel and a driven wheel. The first contact gear is a bevel gear used to mesh with the input gear, the synchronous driving wheel is coaxially connected to the first contact gear, the driven wheel is meshed with the synchronous driving wheel, and the synchronous driving wheel is coaxially connected to the output gear.

[0009] Furthermore, the ratio of the path length of the contact wheel traveling one circle on the mold to the circumference of the contact wheel is 8:1~12:1, and the transmission ratio of the contact wheel to the output gear is 12:1~8:1; the length of the scraper extending from the inner edge of the mold to the inner side of the mold is defined as L1, and the ratio of the circumference of the output gear to L1 is 1:3~1:6.

[0010] Furthermore, the driving frame includes a strip structure and extends downward to be connected with the scraper, the mounting shell is provided with a sliding seat, the strip structure of the driving frame is slidably mounted in the sliding seat, the sliding seat is provided with a movable opening on the side facing the output gear, the output gear is provided with a driving tooth, the strip structure is provided with a tooth step with a thickness less than the diameter of the strip structure, the tooth step extends from the movable opening and is provided with a driven tooth for meshing with the driving tooth; the spacing between the upper edge and the lower edge of the movable opening is greater than the thickness of the tooth step, the output gear serves as an active structure so that the strip structure has a tendency to rotate downward around the axis during the movement of the driving frame toward the compression torsion elastic member; the scraper rotating downward has a gap with the top surface of the mold before rotation, and the scraper rotating downward is in close contact with the top surface of the mold.

[0011] Furthermore, an oblique tooth inclined toward the mold direction is extended from the bottom end of the driven tooth, and the torsional elastic member applies a torsional force to the strip structure of the driving frame to rotate upward around the axis; when the driving frame is driven by the torsional elastic member as an active structure to rotate the output gear, the torsional elastic member drives the strip structure to rotate upward and reset; when the output gear acts as an active structure to cause the driving frame to move toward compressing the torsional elastic member, the driving teeth compress the oblique teeth to cause the strip structure to overcome the torsional force of the torsional elastic member and rotate downward.

[0012] Furthermore, the process of the rolling head descending to extrude the mud into the mold includes an extrusion stage, an overflow stage and a shaping stage, and the scraper moving away from the center of the mold is located on the inner side of the inner edge of the mold in both the overflow stage and the shaping stage.

[0013] A process for preparing antibacterial and easy-to-clean ceramics comprises the following steps: Step 1: Put the clay into the mold and send it to the roll forming equipment through the conveyor line. Through the rolling extrusion of the rolling head, the overflowed clay is separated by the discharge assembly, so that the clay is formed into the desired product shape along the inner wall of the mold; Step 2: taking the clay out of the mold, and sending the taken clay into the first sintering equipment through the conveyor line for sintering, so that the ceramic body is initially solidified; Step 3: The initially solidified ceramic body is sent to a glazing device through a conveyor line, and glazing is performed in the glazing device to cover the surface of the body with glaze; Step 4, then placing the glazed body into a second sintering device to sinter and solidify the glaze layer, thereby forming a ceramic product with an antibacterial surface and easy to clean; In the step three, the glaze adopts the following scheme: albite powder, iron lithium mica powder, calcined kaolin, quartz powder, burned talc powder, titanium oxide, sodium silicate, rare earth oxide, high boron frit; wherein the rare earth oxide is a mixture of scandium oxide and lanthanum oxide.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a discharge assembly on the machine body. When the rolling operation is carried out, the contact wheel of the discharge assembly is rotated in conjunction with the mold, and then the contact wheel drives the scraper to move away from the mold through the reduction gear set, so that the scraper can be pulled away horizontally while scraping the overflow in the overflow stage, and continue to scrape in contact with the mud material while pulling away, so that the scraper can be gradually pulled away horizontally until it is pulled out in the shaping stage when the mud material has been formed, thereby avoiding the situation where the mud material and the scraper stick to each other and are pulled away when the scraper is directly pulled away, thereby ensuring the integrity of the top surface of the formed mud material.

[0015] Furthermore, the present invention allows enough space for the operation of the mold by driving the scraper up through the moving component, and allows the moving component to swing in conjunction with the working arm through swinging, thereby taking into account both the force on the moving component and the space that is allowed.

[0016] Moreover, since the discharge assembly contacts the mold through the contact wheel to drive the scraper to move, the present invention adopts a moving assembly with a double parallel mechanism to reduce the horizontal displacement of the output seat and the discharge assembly, so that the path of the output seat moving up and down is approximately the vertical path, thereby reducing the differential speed state of the scraper and the mud material, and allowing the scraper to work better on the basis of ensuring the molding quality of the top surface of the mud material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the overall structure of an antibacterial and easy-to-clean ceramic preparation device according to the present invention.

[0018] Figure 2 It is a schematic diagram of the overall structure of the roll forming equipment of the present invention.

[0019] Figure 3 It is a side structural schematic diagram of the discharge assembly and the moving assembly of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the cooperation between the moving component and the output socket of the moving component of the present invention.

[0021] Figure 5 It is a schematic diagram of the state transition of the discharge component of the present invention moving under the drive of the moving component.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the mobile component of the present invention.

[0023] Figure 7 It is a schematic diagram of the side sectional structure of the moving assembly of the present invention.

[0024] Figure 8It is a top view structural schematic diagram of the cooperation between the output gear and the driving frame on the scraper of the present invention.

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of the gear and the driving frame on the scraper according to the present invention, and a partial schematic diagram of the change of the meshing state between the gear and the driving frame.

[0026] In the figure: A, mold; B, clay; 1, rolling forming equipment; 2, conveyor line; 3, first sintering equipment; 4, glazing equipment; 5, second sintering equipment; 6, discharge assembly; 7, moving assembly; 11. Machine body; 12. Working arm; 13. Machine head; 14. Rolling head; 15. Rotating seat; 16. Aggregate bin; 61. Scraper; 62. Mounting shell; 63. Sliding piece; 64. Reset puller; 65. Contact wheel; 66. Input gear; 67. Reduction gear set; 68. Output gear; 69. Driving frame; 71. Stand; 72. Front group swing arm; 73. Parallel side connecting rod; 74. Rear group first swing arm; 75. Rear group second swing arm; 76. Output seat; 77. Synchronous connecting rod; 78. Reset elastic piece; 121, linkage member; 621, sliding seat; 622, movable opening; 651, swing frame; 671, first contact gear; 672, synchronous driving wheel; 673, driven wheel; 691, torsional elastic member; 68a, driving tooth; 69a, tooth step; 69b, driven tooth; 69c, oblique tooth. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] Examples, such as Figure 1-Figure 9 As shown: The present invention provides an antibacterial and easy-to-clean ceramic preparation device and process, the structure includes a rolling forming device 1, a first sintering device 3, a glazing device 4 and a second sintering device 5 arranged in sequence according to the process, and the workpiece is transported between the various stages through a conveyor line 2. The rolling forming device 1 is used to roll a mold A with a mud material B placed thereon. The rolling forming device 1 includes a body 11 and a head 13 that swings on the body 11 through a working arm 12. The body 11 is provided with a rotating seat 15 for driving the mold A to rotate. The head 13 is provided with a rolling head 14 and drives the rolling head 14 to rotate to roll the mud material B in the mold A. In this embodiment, the following steps are included: Step 1: Put the clay material B into the mold A, and send it to the rolling forming device 1 through the conveyor line 2. The clay material B is formed into the desired product shape along the inner wall of the mold A through the rolling extrusion of the rolling head 14; Step 2: Take the clay material B out of the mold A, and send the taken clay material B into the first sintering device 3 through the conveying line 2 for sintering, so that the ceramic body is initially solidified; Step 3: The preliminarily solidified ceramic body is sent to the glazing device 4 through the conveyor line 2, and the glazing is performed in the glazing device 4 so that the surface of the body is covered with glaze; Step 4, the glazed green body is then placed in a second sintering device 5 to sinter and solidify the glaze layer, thereby forming a ceramic product with an antibacterial surface and easy to clean; To this end, in step three, the surface glaze adopts the following scheme: 40-45 parts of albite powder, 10-13 parts of iron lithium mica powder, 14-16 parts of calcined kaolin, 25-32 parts of quartz powder, 7-8.5 parts of burned talc, 5-6 parts of titanium oxide, 3-3.6 parts of sodium silicate, 4-5 parts of rare earth oxide, and 3-4 parts of high boron frit; wherein the rare earth oxide is a mixture of scandium oxide and lanthanum oxide, and the mass ratio of scandium oxide to lanthanum oxide is 1:(1.25-1.35), the particle sizes of albite powder, iron lithium mica powder and burned talc are all 4000-5000 mesh, and the particle size of calcined kaolin is 5000-6000 mesh.

[0029] In order to prevent the clay from being loosened and damaged in the rolling stage, in this embodiment, a discharge assembly 6 is movably installed on the machine body 11. The discharge assembly 6 includes a scraper 61 for moving to the mold A to scrape off the clay B overflowing from the mold A. The discharge assembly 6 includes a contact wheel 65 that is transmission-connected to the scraper 61. The contact wheel 65 is used to contact the mold A and is driven to rotate by the rotating mold A. The rotating contact wheel 65 drives the scraper 61 to move away from the center of the mold A, so that the scraper 61 is laterally drawn away while the clay is being formed, thereby ensuring that the top surface of the formed clay is intact, thereby ensuring uniform coverage of the glaze surface, avoiding the uneven glaze surface from affecting the melting and leveling of the glaze, and avoiding defects such as pinholes and bubbles on the glaze surface. As can be known, the discharge assembly 6 needs to be movably mounted on the machine body 11, so that it can be removed after the rolling operation is completed to free up space for taking away the mold A. At this time, the removal direction has two optional lateral and vertical directions. In order to avoid occupying the lateral space and to cooperate with the working direction of the roll-forming equipment 1, in this embodiment, the discharge assembly 6 includes a mounting shell 62 and is movably mounted on the machine body 11 through a moving assembly 7, and the moving assembly 7 is linked with the working arm 12. The moving assembly 7 includes an output seat 76, and a linkage member 121 is provided on the working arm 12 and contacts the moving assembly 7. When the working arm 12 swings downward, the linkage member 121 drives the output seat 76 of the moving assembly 7 to move toward the mold A below, and the output seat 76 drives the discharge assembly 6 to move vertically, so that the discharge assembly 6 moves in a vertical range; For the moving component 7, the usual vertical sliding form will produce a large vertical stroke and uneven force. Therefore, in this embodiment, a swinging and lifting form is adopted to make the moving component 7 swing and move on the machine body 11. The horizontal height after the moving component 7 drives the discharge component 6 to swing and rise is greater than or equal to the horizontal height after the rolling head 14 is swung and risen by the working arm 12, and the moving component 7 adopts a parallelogram mechanism to drive the output seat 76 to rise and fall. The discharge component 6 is set to retain the freedom of vertical movement under the connection of the moving component 7, as well as the freedom of movement in the horizontal direction when the median perpendicular line of the connecting rod swing axis is projected. However, the discharge component 6 contacts the mold A through the contact wheel 65 to drive the scraper 61 to move. Therefore, when the movement of the median perpendicular line of the swing axis in the horizontal direction is too large, the differential speed of the contact wheel 65 will be too large, causing the scraper 61 to move too unevenly. Therefore, in this embodiment, the discharge component 6 is controlled to move vertically and the moving distance in the horizontal direction is less than the radius of the contact wheel 65.

[0030] To this end, the moving assembly 7 includes a double parallel mechanism formed by a plurality of connecting rods for driving the output seat 76 to move vertically. The double parallel mechanism can reduce the movement of the discharge assembly 6 in the horizontal direction. Specifically, the moving assembly 7 includes a stand 71, and the double parallel mechanism includes two front group swing arms 72 hingedly connected to the stand 71. A parallel side connecting rod 73 is connected between the ends of the two front group swing arms 72. The two front group swing arms 72, the stand 71 and the parallel side connecting rod 73 form a first group of parallelogram mechanisms. A reset elastic member 78 is provided between the front group swing arms 72 and the stand 71. The reset elastic member 78 provides an elastic force to drive the front group swing arms 72 to swing upward, so that after the working arm 12 is reset, the front group swing arms 72 also swing upward and reset; not only that, the double parallel mechanism also includes a rear group first swing arm 74 and a rear group second swing arm 75. The rear group first swing arm 74 has one end, the other end and There are three connection points in the middle, the middle of the first rear swing arm 74 and one end of the second rear swing arm 75 are hinged to the ends of the two front swing arms 72 respectively, and one end of the first rear swing arm 74 and the second rear swing arm 75 are hinged to the output seat 76. The first rear swing arm 74, the second rear swing arm 75, the output seat 76 and the parallel side connecting rod 73 form a second parallelogram mechanism, and the first rear swing arm 74 and the second rear swing arm 75 at the ends of the front swing arms 72 point in the direction of the stand 71, thereby forming an inside-outside staggered state; finally, the other end of the first rear swing arm 74 is connected to the stand 71 through a synchronous connecting rod 77, thereby, when the first parallelogram mechanism moves, the second parallelogram mechanism is driven to move synchronously by pulling or pushing the first rear swing arm 74 through the synchronous connecting rod 77, so that the output seat 76 moves in an approximately vertical path.

[0031] At the same time, a sliding member 63 is provided on the mounting shell 62 of the discharge assembly 6. The sliding member 63 is slidably installed on the output seat 76, and a reset pulling member 64 is provided between the sliding member 63 and the output seat 76 to drive the sliding member 63 to reset. The sliding member 63 is preliminarily in a position away from the output seat 76. After the output seat 76 falls following the swing, the discharge assembly 6 first contacts the mold A, and then the output seat 76 continues to fall to leave a certain amount of movable margin to ensure that the discharge assembly 6 and the mold A can be fully in contact.

[0032] For the discharge assembly 6, an input gear 66 is provided on the contact wheel 65, a reduction gear set 67 is provided on the mounting shell 62, a driving frame 69 is provided on the scraper 61, and an output gear 68 is provided on the mounting shell 62 at the side end of the driving frame 69 to mesh with the driving frame 69, and the output gear 68 is connected to the reduction gear set 67. The input gear 66 is connected to the driving frame 69 and the scraper 61 through the reduction gear set 67. In this embodiment, the input gear 66 is a bevel gear, and the reduction gear set 67 includes a first contact gear 671. The first contact gear 671 is a bevel gear used to mesh with the input gear 66, so as to convert the vertical rotation of the contact wheel 65 into the lateral rotation of the reduction gear set 67, thereby driving the driving frame 69 to move lateraly. It should be noted that, in order to allow the driven frame 69 to be reset when it is not needed after being moved, a torsion elastic member 691 is provided between the rear end of the driven frame 69 and the mounting shell 62 to provide elastic force for the driven frame 69 and the scraper 61 to reset toward the mold A. It should also be noted that, in order to avoid the gear self-locking resistance caused by the reduction gear set 67 to reset the driven frame 69, the number of meshing gears in the reduction gear set 67 should be less than 4, and all of them are spur gears, and the influence of the input gear 66 with different rotation directions needs to be eliminated; Therefore, in this embodiment, the contact wheel 65 is swingably mounted on the mounting shell 62 through the swing frame 651, and the swing frame 651 drives the contact wheel 65 to swing downward so that the input gear 66 is disengaged from the reduction gear set 67. The reduction gear set 67 also includes a synchronous driving wheel 672 and a driven wheel 673. The synchronous driving wheel 672 is coaxially connected to the first contact gear 671, and the driven wheel 673 is meshed with the synchronous driving wheel 672. The synchronous driving wheel 672 is coaxially connected to the output gear 68. It should be noted that, in this embodiment, the length of the scraper 61 extending from the inner edge of the mold A to the inner side of the mold A is defined as L1, and the ratio of the circumference of the output gear 68 to the length of L1 is 1:3~1:6. The process of the rolling head 14 descending to squeeze the mud material B into the mold A includes an extrusion stage, an overflow stage and a shaping stage. In the extrusion stage, the rolling head 14 squeezes the mud material B so that the mud material B fits the inner wall of the mold A. The overflow stage is when the excess mud material B overflows from the edge of the mold A. The shaping stage is a few laps of idle travel after the scraper 61 separates the overflowed mud material B; the rolling head 14 moves away from the center of the mold A. The movable scraper 61 is located on the inner side of the inner edge of the mold A in both the overflow stage and the shaping stage, and the overflow stage and the shaping stage are usually performed for 3-6 circles. Therefore, the ratio of the path length of the contact wheel 65 traveling one circle on the mold A to the circumference length of the contact wheel 65 is also synchronously set to be 8:1~12:1, and the transmission ratio of the contact wheel 65 to the output gear 68 is 12:1~8:1, so that when the mold A rotates one circle, the output gear 68 also rotates nearly one circle, allowing the scraper 61 to move outward from the mold A by 3~6 units, and the number of units depends on the number of rotations of the mold A in the overflow stage and the shaping stage.

[0033] At the same time, the driving frame 69 includes a strip structure and extends downward to be connected with the scraper 61. A sliding seat 621 is provided on the mounting shell 62. The strip structure of the driving frame 69 is slidably installed in the sliding seat 621. A movable opening 622 is provided on the side of the sliding seat 621 facing the output gear 68. A driving tooth 68a is provided on the output gear 68. A tooth step 69a with a thickness less than the diameter of the strip structure is provided on the strip structure. The tooth step 69a extends out from the movable opening 622 and a driven tooth 69b is provided on the tooth step 69a for meshing with the driving tooth 68a, so that the output gear 68 rotates to drive the driving frame 69 to move, and the driving frame 69 synchronously drives the scraper 61 to move.

[0034] In summary, when step one is implemented more specifically, the working arm 12 swings downward and drives the front swing arm 72 of the moving assembly 7 to swing toward the mold A below through the linkage 121. The first parallelogram mechanism where the front swing arm 72 is located swings downward, and the second parallelogram mechanism is driven to swing downward synchronously through the synchronous connecting rod 77 to push the rear first swing arm 74, driving the output seat 76 to move in an approximately vertical path, so that the contact wheel 65 of the discharge assembly 6 contacts the mold A, and the drooping contact wheel 65 swings upward through the swing frame 651 to engage the input gear 66 with the first contact gear 671. In the overflow stage, the mold A rotates 4 circles, and the mud material B overflows from the edge of the rotating mold A. The rotating mud material B contacts the scraper 61. After the mold A rotates, the scraper 61 moves 4 units outward from the mold A. In the shaping stage, the mold A rotates 2 circles, the scraper 61 moves 2 units outward from the mold A and L1 is less than 0 at this time, and moves out of the mold A. As a result, the mud B is also shaped in the mold A. There is no pressure from the blade or scraper 61 on the top of the shaped mud B, so as to avoid the scraper 61 being suddenly pulled up and affecting the shaping quality of the top surface.

[0035] Moreover, in this embodiment, the distance between the upper edge and the lower edge of the movable opening 622 is greater than the thickness of the tooth step 69a, thereby providing space for the strip structure to swing downward. The output gear 68, as an active structure, drives the frame 69 to compress and twist the elastic member 691, so that the strip structure has a tendency to rotate downward around the axis. Before the downward rotating scraper 61 rotates, there is a gap between it and the top surface of the mold A. This gap is an objective gap and does not affect the molding effect. However, in this embodiment, the downward rotating scraper 61 is in close contact with the top surface of the mold A. To this end, an inclined tooth 69c inclined toward the direction of mold A is extended from the bottom end of the driven tooth 69b, and the torsional elastic member 691 applies a torsional force to the strip structure of the driving frame 69 to rotate upward around the axis; the output gear 68 acts as an active structure to drive the frame 69 to compress the torsional elastic member 691. During the movement, the driving tooth 68a presses the inclined tooth 69c to make the strip structure overcome the torsional force of the torsional elastic member 691 and rotate downward, so that the scraper 61 is in close contact with the top surface of the mold A, ensuring the stability of the working position of the scraper 61. When the contact wheel 65 is separated from the mold A, the reduction gear set 67 loses power, and the driving frame 69 is driven by the torsional elastic member 691 as an active structure to rotate the output gear 68. During this process, the torsional elastic member 691 drives the strip structure to rotate upward and reset.

[0036] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. An antibacterial and easy-to-clean ceramic preparation device, characterized in that: The structure includes a roll forming device, a first sintering device, a glazing device and a second sintering device arranged in sequence at various levels according to the process, and the workpieces are transported between the various levels through a conveyor line. The roll forming device is used to roll the mold with the clay placed therein; The roll forming equipment comprises a machine body and a machine head which swings on the machine body through a working arm, the machine body is provided with a rotating seat for driving the mold to rotate, the machine head is provided with a rolling head and drives the rolling head to rotate to roll the mud in the mold, and the machine body is also movably provided with a discharge assembly, the discharge assembly comprises a scraper for moving to the mold to scrape off the mud overflowing from the mold; The discharge assembly includes a contact wheel that is transmission-connected to the scraper, the contact wheel is used to contact the mold and is driven to rotate by the rotating mold, and the rotating contact wheel drives the scraper to move away from the center of the mold; The discharge assembly includes a mounting shell and is movably mounted on the machine body through a moving assembly. The moving assembly cooperates with a working arm. The moving assembly includes an output seat. The working arm drives the output seat of the moving assembly to move toward the mold below, and the output seat drives the discharge assembly to move vertically.

2. The antibacterial and easy-to-clean ceramic preparation equipment according to claim 1, characterized in that: The moving assembly swings and moves on the machine body, and the horizontal height after the moving assembly drives the discharging assembly to swing up is greater than or equal to the horizontal height after the rolling head swings up through the working arm. The moving assembly includes a double parallel mechanism formed by a plurality of connecting rods to drive the output seat to move vertically; The discharging assembly retains the freedom of vertical movement under the connection of the moving assembly, and the freedom of horizontal movement projected from the perpendicular bisector of the connecting rod swing axis. The discharging assembly moves vertically and the moving distance in the horizontal direction is less than the radius of the contact wheel.

3. The antibacterial and easy-to-clean ceramic preparation equipment according to claim 2, characterized in that: The moving assembly includes a stand, the double parallel mechanism includes two front swing arms hingedly connected to the stand, a parallel side connecting rod is connected between the ends of the two front swing arms, a reset elastic member is provided between the front swing arms and the stand, and the reset elastic member provides elastic force to drive the front swing arms to swing upward; The double parallel mechanism also includes a rear first swing arm and a rear second swing arm, wherein the middle portion of the rear first swing arm and one end of the rear second swing arm are respectively hingedly connected to the ends of the two front swing arms, one end of the rear first swing arm and the rear second swing arm are hingedly connected to the output seat, and the other end of the rear first swing arm is connected to the stand seat via a synchronous connecting rod; The rear first swing arm and the rear second swing arm at the ends of the front swing arms point to the direction of the stand.

4. The antibacterial and easy-to-clean ceramic preparation equipment according to claim 1, characterized in that: The contact wheel is provided with an input gear, the mounting shell is provided with a reduction gear set, the scraper is provided with a driving frame, the mounting shell at the side end of the driving frame is provided with an output gear meshing with the driving frame, the output gear is connected with the reduction gear set, and the input gear is connected with the driving frame and the scraper through the reduction gear set. The contact wheel is swung and mounted on the mounting shell through a swing frame, and the swing frame drives the contact wheel to swing downward to disengage the input gear from the reduction gear set. A torsional elastic member is provided between the rear end of the driving frame and the mounting shell to provide elastic force to reset the driving frame and the scraper toward the mold direction.

5. The antibacterial and easy-to-clean ceramic preparation equipment according to claim 4, characterized in that: The input gear is a bevel gear, and the reduction gear set includes a first contact gear, a synchronous driving wheel and a driven wheel. The first contact gear is a bevel gear for meshing with the input gear, the synchronous driving wheel is coaxially connected to the first contact gear, the driven wheel is meshed with the synchronous driving wheel, and the synchronous driving wheel is coaxially connected to the output gear.

6. The antibacterial and easy-to-clean ceramic preparation equipment according to claim 5, characterized in that: The ratio of the path length of the contact wheel traveling one circle on the mold to the circumference of the contact wheel is 8:1-12:1, and the transmission ratio of the contact wheel to the output gear is 12:1-8:1; The length of the scraper extending from the inner edge of the mold to the inner side of the mold is defined as L1, and the length ratio of the circumference of the output gear to L1 is 1:3-1:

6.

7. The antibacterial and easy-to-clean ceramic preparation equipment according to claim 4, characterized in that: The driving frame includes a strip-shaped structure and extends downward to be connected to the scraper. The mounting shell is provided with a sliding seat. The strip-shaped structure of the driving frame is slidably mounted in the sliding seat. The sliding seat is provided with a movable opening on a side facing the output gear. The output gear is provided with a driving tooth. The strip-shaped structure is provided with a tooth step with a thickness smaller than the diameter of the strip-shaped structure. The tooth step extends from the movable opening and is provided with a driven tooth for meshing with the driving tooth. The distance between the upper edge and the lower edge of the movable opening is greater than the thickness of the tooth step, and the output gear acts as an active structure to make the strip structure have a tendency to rotate downward around the axis during the movement of the driving frame toward the compression torsion elastic member; There is a gap between the scraper rotating downward and the top surface of the mold before rotation, and the scraper rotating downward is in close contact with the top surface of the mold.

8. The antibacterial and easy-to-clean ceramic preparation equipment according to claim 7, characterized in that: The bottom end of the driven tooth is extended with an oblique moving tooth inclined toward the mold direction, and the torsion elastic member applies a torsion force to the strip structure of the driving frame to rotate upward around the axis; The driving frame is driven by the torsion elastic member as an active structure to rotate the output gear, and the torsion elastic member drives the strip structure to rotate upward and reset; The output gear as an active structure drives the frame to move toward the compression torsion elastic member, and the driving teeth press the oblique teeth to make the strip structure overcome the torsion of the torsion elastic member and rotate downward.

9. The antibacterial and easy-to-clean ceramic preparation equipment according to claim 1, characterized in that: The process of the rolling head descending to extrude the clay material into the mold includes an extrusion stage, an overflow stage and a shaping stage. The scraper moving away from the center of the mold is located on the inner side of the inner edge of the mold in both the overflow stage and the shaping stage.

10. A process for preparing antibacterial and easy-to-clean ceramics, characterized in that: The method is carried out using any one of the antibacterial and easy-to-clean ceramic preparation equipment of claims 1 to 9, comprising the following steps: Step 1: Put the clay into the mold and send it to the roll forming equipment through the conveyor line. Through the rolling extrusion of the rolling head, the overflowed clay is separated by the discharge assembly, so that the clay is formed into the desired product shape along the inner wall of the mold; Step 2: taking the clay out of the mold, and sending the taken clay into the first sintering equipment through the conveyor line for sintering, so that the ceramic body is initially solidified; Step 3: The initially solidified ceramic body is sent to a glazing device through a conveyor line, and glazing is performed in the glazing device to cover the surface of the body with glaze; Step 4, then placing the glazed body into a second sintering device to sinter and solidify the glaze layer, thereby forming a ceramic product with an antibacterial surface and easy to clean; In the step 3, the glaze adopts the following scheme: albite powder, iron lithium mica powder, calcined kaolin, quartz powder, burned talc powder, titanium oxide, sodium silicate, rare earth oxide, high boron frit; Among them, the rare earth oxide is a mixture of scandium oxide and lanthanum oxide.

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