Automatic stripping system for square zinc oxide voltage-sensitive ceramic after sintering

Abstract

The automatic stripping system comprises an operation table, a stripping groove is formed in the operation table, a discharging opening is formed in one end of the stripping groove, an automatic stripping machine is arranged above the discharging opening, and an automatic pushing mechanism is arranged on one side of the stripping groove; the automatic stripping machine comprises a stripping assembly and a position sensing assembly. The stripping assembly comprises a stripping knife, and the stripping knife is connected with a reciprocating driving device; the position sensing assembly comprises a linkage plate, and the horizontal plane of the lower end of the linkage plate is lower than the horizontal plane of the lower end of the stripping knife; the linkage plate and the stripping knife are positioned on the same vertical surface, and the vertical surface is parallel to a gap surface during stripping of the zinc oxide voltage-sensitive ceramic; and a microswitch is arranged on the linkage plate. The system provided by the invention has the characteristics of high automation degree, time and labor saving, high stripping efficiency, accurate and controllable operation, small fragment risk, reliable product quality and reasonable design.

Description

Technical Field

[0001] The invention relates to a zinc oxide varistor ceramic processing system, in particular to an automatic stripping system for square zinc oxide varistor ceramics after sintering. Background Art

[0002] Zinc oxide varistor ceramics generally come in square or round sheets, with square sheets being the most common. When sintering square zinc oxide varistor ceramics, hundreds or even thousands of sheets are typically sprinkled with anti-sticking powder, stacked in a dedicated sagger, and then placed in a high-temperature furnace for sintering. After high-temperature sintering, the sheets adhere tightly to each other, making them difficult to separate.

[0003] The current method for peeling ceramic sheets after sintering is relatively simple. Typically, a worker holds a utility knife in one hand and a striking device in the other. The worker places the blade in the gap between adjacent ceramic sheets. Because the edges of the ceramic sheets are generally chamfered on both sides, the connecting seam typically has a V-shaped groove. The blade of the utility knife easily enters the bottom of the V-shaped groove, and the sticky ceramic sheet can be peeled off by gently tapping the back of the knife. The main drawbacks of this method are that it is time-consuming and labor-intensive, with low peeling efficiency, uncontrollable operation, and the risk of damaging the ceramic sheets.

[0004] Since zinc oxide varistor ceramics have been widely used in the industrial field, the market demand has surged, and the application scenarios have increasingly higher requirements for the product quality of zinc oxide varistor ceramics. Therefore, whether from the perspective of improving production efficiency or from the perspective of ensuring product quality, it is necessary to upgrade the stripping process to meet market demand.

[0005] To this end, we have developed a dedicated square zinc oxide varistor ceramic automatic peeling system after sintering to overcome the aforementioned defects. Summary of the Invention

[0006] To address the aforementioned technical issues, the present invention provides a system for automatically stripping square zinc oxide varistor ceramics after sintering. The system features a high degree of automation, time and labor savings, high stripping efficiency, precise and controllable operation, minimal risk of residual chips, reliable product quality, and a rational design.

[0007] The technical solution of the present invention:

[0008] An automatic peeling system for square zinc oxide varistor ceramics after sintering, comprising an operating table, a peeling trough provided on the operating table, a feeding port provided at one end of the peeling trough, an automatic peeling machine provided above the feeding port, and an automatic pushing mechanism provided on one side of the peeling trough;

[0009] The automatic flaking machine includes a housing standing on an operating table, one side of the housing is suspended above the flaking slot, and a flaking assembly and a position sensing assembly are connected to the interior of the housing;

[0010] The stripping assembly includes a stripping knife extending downward to the bottom of the housing, and the stripping knife is connected to a reciprocating drive device;

[0011] The position sensing assembly includes a linkage plate extending downward to the bottom of the housing, wherein the lower end of the linkage plate is located at a lower level than the lower end of the peeling knife; the linkage plate and the peeling knife are located on the same vertical plane, and the vertical plane is parallel to the gap surface when the zinc oxide pressure-sensitive ceramic is peeled;

[0012] The upper end of the linkage plate is connected to the guide column 1, and a micro switch is provided at the connection; the micro switch, the automatic pushing mechanism and the reciprocating driving device are connected to the controller.

[0013] This solution limits the stacked ceramic sheets through the stripping groove, feeds the sheets through the automatic pushing mechanism, and strips them through the automatic stripping machine, thus realizing automatic stripping, saving manpower, improving processing efficiency, and the automated processing is more controllable, with a smaller risk of accidental injury and better assurance of product quality. In addition, this solution further improves the position judgment capability by rationally designing the structure and positional relationship of the position sensing component and the stripping component, making the stripping position more accurate, reducing the chance of misjudgment, avoiding accidental injury, and further ensuring product quality.

[0014] Preferably, in the aforementioned automatic peeling system after sintering of the square zinc oxide piezoresistive ceramic, the peeling knife is connected to the reciprocating drive device via a second guide column and a connecting rod that are interconnected, wherein the second guide column is slidably connected to a second guide sleeve in the shell.

[0015] In this solution, by providing the second guide column and the second guide sleeve, the position of the stripping knife is made more fixed, thereby avoiding displacement of the stripping knife due to long-term processing, thereby further ensuring processing reliability.

[0016] Preferably, in the aforementioned automatic peeling system after sintering of the square zinc oxide piezoresistive ceramic, a square inner hole that is recessed upward is provided in the middle of the lower end of the second guide column, the width of the square inner hole is greater than the thickness of the peeling knife, the upper end of the peeling knife is connected to the side of the square inner hole away from the discharge port via a rotating shaft, and a spring is provided between the other side and the peeling knife.

[0017] This solution avoids the problem of equipment damage caused by the large thickness of the peeling knife by setting the peeling knife as a flippable structure. The flippable peeling knife can also provide outward thrust to the peeled ceramic sheet to help separate it, which is a more reasonable design.

[0018] Preferably, in the aforementioned automatic peeling system for square zinc oxide varistor ceramics after sintering, the lower end of the linkage plate is slidably connected to a strip roller, and the axial direction of the strip roller is parallel to the gap surface when the zinc oxide varistor ceramics are peeled.

[0019] This solution sets a strip roller under the linkage plate to make the linkage plate form sliding contact with the surface of the ceramic sheet, further avoiding accidental damage to the ceramic sheet and ensuring product quality.

[0020] Preferably, in the aforementioned automatic peeling system after sintering of the square zinc oxide varistor ceramic, an upward T-shaped inner hole is provided in the middle of the lower end of the guide column, and the upper end of the linkage plate is a T-shaped structure that cooperates with the T-shaped inner hole; a second spring is provided between the top of the linkage plate and the top of the T-shaped inner hole, and contact A and contact B are respectively provided on the lower side of the top edge of the linkage plate and the lower side of the top edge of the T-shaped inner hole, and spring two, contact A and contact B constitute the micro switch, and contact A and contact B are respectively connected to the controller.

[0021] The micro switch of this solution is realized by micro contacts A and B and spring 2, and has a simple structure, reasonable design and strong practicality.

[0022] Preferably, in the aforementioned automatic peeling system after sintering of the square zinc oxide piezoresistive ceramic, the guide column 1 is slidably connected to the guide sleeve 1 in the shell, the top of the guide column 1 is provided with a vertically downward internal threaded hole, and an adjusting screw is threadedly connected to the inside thereof, and the top of the adjusting screw is provided with a bevel gear 1, and one side of the bevel gear 1 is engaged with a bevel gear 2, and the central axis of the bevel gear 2 is connected to an adjustment handle after extending out of the shell.

[0023] This solution achieves height adjustment of the linkage plate by slidingly connecting the guide column 1 to the guide sleeve 1 and adjusting the longitudinal height of the guide column 1 by adjusting the screw to meet the peeling needs of ceramic sheets of different heights and sizes, which is more practical.

[0024] Preferably, in the aforementioned square zinc oxide varistor ceramic automatic peeling system after sintering, a micro switch working indicator light is provided on the housing, and the micro switch working indicator light is connected to the controller.

[0025] This solution sets a micro switch working indicator light, which can intuitively judge the adjustment height of the linkage plate, making the operation more convenient and more practical.

[0026] Preferably, the aforementioned square zinc oxide piezoresistive ceramic automatic peeling system after sintering, the automatic pushing mechanism includes a slide groove arranged on one side of the stripping groove and parallel to it, a pushing screw parallel to the stripping groove is provided in the slide groove, a slider is threadedly connected to the pushing screw, the slider is tightly fitted with the inner wall of the slide groove, a crank arm is provided on the side of the slider close to the stripping groove, and the end of the crank arm extends into the stripping groove; one end of the pushing screw is connected to a pushing motor, and the pushing motor is connected to the controller.

[0027] This solution pushes the ceramic pieces by utilizing a combination of a pushing screw, a slider, a chute and a pushing motor. The pushing process is continuous and gentle, the structure is simpler and the design is more reasonable.

[0028] Preferably, in the aforementioned automatic peeling system after sintering of the square zinc oxide varistor ceramic, a V-shaped limit groove is provided on the side of the crank arm end close to the automatic peeling machine, and a limit plate is provided on each side of the peeling groove close to the discharge port, and a plurality of springs are provided between the back of the limit plate and the side wall of the peeling groove; the line connecting the midpoint of the vertical line between the two limit plates and the intersection of the V-shaped limit groove is parallel to the length direction of the peeling groove.

[0029] This solution sets a V-shaped limit groove on one side of the turning arm and sets limit plates that squeeze from both sides to the middle at the unloading end of the stripping groove, so that the stacking direction of the ceramic sheets is always parallel to the center line direction of the stripping groove, so that the gap surface of the stripping is always parallel to the stripping knife and the linkage plate, avoiding the gap surface and the surface where the stripping knife is located. An angle is formed, which may damage the ceramic sheets. This solution further ensures the reliability of processing and reduces the risk of accidental injury. At the same time, ceramic sheets of different widths can also be processed, which is more practical.

[0030] Preferably, in the aforementioned automatic peeling system for square zinc oxide varistor ceramics after sintering, the inlet end of the limiting piece is provided with an outwardly turned arc surface.

[0031] This solution provides an outward-turned arc surface at the entrance end of the limiting piece, so that the ceramic piece can enter between the limiting pieces more easily, the operation is more convenient, and the design is more reasonable.

[0032] Beneficial effects of the present invention:

[0033] 1. The present invention limits the stacked ceramic sheets by means of a peeling groove, feeds the sheets by means of an automatic pushing mechanism, and peels the sheets by means of an automatic peeling machine, thereby realizing automatic peeling, saving manpower, and improving processing efficiency. The automatic processing is more controllable, the risk of accidental injury is smaller, and the product quality is more guaranteed. In addition, the present invention further improves the position judgment capability by rationally designing the structure and positional relationship of the position sensing component and the peeling component, making the peeling position more accurate, reducing the probability of misjudgment, avoiding accidental injury, and further guaranteeing the product quality.

[0034] 2. In the present invention, by providing the second guide post and the second guide sleeve, the position of the stripping knife is more fixed, avoiding displacement of the stripping knife due to long-term processing, thereby further ensuring processing reliability.

[0035] 3. The present invention can avoid the problem of damage to the equipment due to the large thickness of the peeling knife by setting the peeling knife as a flippable structure. The flippable peeling knife can also provide an outward thrust to the peeled ceramic sheet to help separate it, and the design is more reasonable.

[0036] 4. The present invention provides a strip roller under the linkage plate so that the linkage plate forms a sliding contact with the surface of the ceramic sheet, thereby further avoiding accidental damage to the ceramic sheet and ensuring product quality.

[0037] 5. The micro switch of the present invention is realized by micro contacts A and B and spring 2, and has a simple structure, reasonable design and strong practicality.

[0038] 6. The present invention achieves height adjustment of the linkage plate by slidingly connecting the guide column 1 to the guide sleeve 1 and adjusting the longitudinal height of the guide column 1 by adjusting the screw to meet the peeling needs of ceramic sheets of different heights and sizes, which is more practical.

[0039] 7. The present invention provides a micro switch working indicator light, which can intuitively judge the adjustment height of the linkage plate, making the operation more convenient and more practical.

[0040] 8. The present invention pushes the ceramic piece by utilizing a combination of a pushing screw, a slider, a chute and a pushing motor. The pushing process is continuous and gentle, the structure is simpler and the design is more reasonable.

[0041] 9. The present invention provides a V-shaped limit groove on one side of the turning arm and provides a limit plate that squeezes from both sides to the middle at the unloading end of the stripping groove, so that the stacking direction of the ceramic sheets is always parallel to the center line direction of the stripping groove, so that the gap surface of the stripping is always parallel to the stripping knife and the linkage plate, avoiding the gap surface and the surface where the stripping knife is located. An angle is formed, thereby avoiding damage to the ceramic sheets. This invention further ensures the reliability of processing and reduces the risk of accidental injury. At the same time, ceramic sheets of different widths can also be processed, which is more practical.

[0042] 10. The present invention provides an outward-turned arc surface at the entrance end of the limiting piece, so that the ceramic piece can more easily enter between the limiting pieces, the operation is more convenient, and the design is more reasonable.

[0043] In summary, the system of the present invention has the advantages of high degree of automation, time and labor saving, high stripping efficiency, precise and controllable operation, low risk of debris, reliable product quality and reasonable design. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Attachment Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0045] Attachment Figure 2 It is a main cross-sectional view of the present invention;

[0046] Attachment Figure 3 It is a main cross-sectional view of the automatic flaking machine of the present invention;

[0047] Attachment Figure 4 Schematic diagram of the connection structure between the linkage plate and the guide column 1 of the present invention;

[0048] Attachment Figure 5 A side sectional view of the linkage plate of the present invention;

[0049] Attachment Figure 6 It is a schematic diagram of the connection structure between the peeling knife and the guide column 2 of the present invention;

[0050] Attachment Figure 7 A top view of the operating table of the present invention;

[0051] Attachment Figure 8 This is a top view of the operating table when placing ceramic pieces in the present invention;

[0052] Attachment Figure 9 A diagram showing the positional relationship between the linkage plate, the peeling knife, and the top of the ceramic sheet of the present invention;

[0053] Attachment Figure 10 A diagram showing the position relationship of the linkage plate of the present invention when it moves relative to the top of the ceramic sheet;

[0054] Attachment Figure 11 This is a diagram showing the state of the peeling knife of the present invention after peeling off the ceramic sheet.

[0055] Explanation of the accompanying symbols: 1-operating table, 2-stripping groove, 3-feeding port, 4-automatic pushing mechanism, 41-chute, 42-pushing screw, 43-slider, 44-pushing motor, 45-crank arm, 46-V-shaped limiting groove, 5-automatic stripping machine, 510-housing, 511-stripping knife, 512-linkage plate, 513-guide column 2, 514-guide sleeve 2, 515-connecting rod, 516-reciprocating drive device, 517-guide column 1 , 518-guide sleeve one, 519-adjusting screw, 520-cone gear one, 521-cone gear two, 522-adjusting handle, 523-micro switch working indicator light, 524-T-shaped inner hole, 525-spring two, 526-contact A, 527-contact B, 528-bar roller, 529-square inner hole, 530-rotating shaft, 531-spring one, 6-controller, 7-limiting piece, 8-spring three, 9-ceramic piece. DETAILED DESCRIPTION

[0056] The present invention will be further described below with reference to the examples, but they are not intended to limit the present invention.

[0057] Embodiments of the present invention

[0058] An automatic stripping system for square zinc oxide varistor ceramics after sintering, as shown in the attached Figure 1-11 As shown, it includes an operating table 1, a stripping trough 2 is provided on the operating table 1, a feeding port 3 is provided at one end of the stripping trough 2, an automatic stripping machine 5 is provided above the feeding port 3, and an automatic pushing mechanism 4 is provided on one side of the stripping trough 2;

[0059] The automatic peeling machine 5 includes a housing 510 standing on the operating table 1, one side of the housing 510 is suspended above the peeling slot 2, and a peeling component and a position sensing component are connected to the housing;

[0060] The stripping assembly includes a stripping knife 511 extending downward to the bottom of the housing 510. The stripping knife 511 uses a sharpened metal blade. The stripping knife 511 is connected to a reciprocating drive device 516. The reciprocating drive device 516 is specifically an electric telescopic cylinder.

[0061] The position sensing assembly includes a linkage plate 512 extending downward to the bottom of the housing 510. The thickness of the lower end of the linkage plate 512 is less than the maximum opening width of the V-shaped groove at the top of the gap surface between adjacent ceramic pieces. The horizontal plane at which the lower end of the linkage plate 512 is located is lower than the horizontal plane at which the lower end of the peeling knife 511 is located. The linkage plate 512 and the peeling knife 511 are located on the same vertical plane, and the vertical plane is parallel to the gap surface when the zinc oxide pressure-sensitive ceramic is peeled.

[0062] The upper end of the linkage plate 512 is connected to the guide column 517, and a micro switch is provided at the connection; the micro switch, the automatic pushing mechanism 4 and the reciprocating drive device 516 are connected to the controller 6.

[0063] When this embodiment is implemented, the operating table 1 needs to be fixed on a fixed position of the production line and can be operated after being powered on. The specific working process is as follows:

[0064] First, place the sintered ceramic sheet 9 in the stripping groove, start the automatic pushing mechanism 4 to make it contact with the end of one end of the ceramic sheet 9, and continue to push the ceramic sheet 9 to move until the upper end surface of the ceramic sheet at the other end contacts the lower end surface of the linkage plate 512. At this time, the ceramic sheet has an upward lifting effect on the linkage plate 512, the microswitch is in the off state, the reciprocating drive device 516 is in the stopped working state, the automatic pushing mechanism 4 continuously pushes the ceramic sheet forward, and the linkage plate 512 moves in the opposite direction relative to the ceramic sheet. When the bottom end of the linkage plate 512 enters the V-groove at the top of the gap surface of the adjacent ceramic sheet, since the thickness of the lower end of the linkage plate 512 is less than the maximum opening width of the V-groove, the linkage plate 512 will move downward and enter the V-groove. The downward movement distance is shown in the attached figure. Figure 10As shown in d, the moving distance is exactly the start-stop stroke of the microswitch. At this time, the microswitch is in the on state, and the electrical signal is transmitted to the controller 6. The controller 6 first controls the automatic pushing mechanism 4 to stop working, and then controls the reciprocating drive device 516 to start working, pushing the stripping knife 511 downward to move and insert it into the gap surface of the ceramic piece, peeling the ceramic piece at the end, and then the reciprocating drive device 516 drives the stripping knife 511 to retract upward to complete an action. At this time, the controller 6 continues to control the automatic pushing mechanism 4 to start working, pushing the ceramic piece forward, and the linkage plate 512 is continued to be lifted upward. The microswitch is disconnected. When it reaches the next gap surface, the previous action is repeated to achieve continuous automatic stripping of the ceramic piece.

[0065] Further implementation examples are attached Figure 1-11 As shown, the peeling blade 511 is connected to the reciprocating drive device 516 via a second guide post 513 and a connecting rod 515, wherein the second guide post 513 is slidably connected to the second guide sleeve 514 in the housing 510. The second guide post 513 and the second guide sleeve 514 fit tightly together to prevent the peeling blade 511 from shifting in the horizontal plane.

[0066] Further implementation examples are attached Figure 1-11 As shown, the middle of the lower end of the guide column 2 513 is provided with an upwardly concave square inner hole 529, the width of the square inner hole 529 is greater than the thickness of the stripping knife 511, and the upper end of the stripping knife 511 is connected to the side of the square inner hole 529 away from the discharge port 3 via a rotating shaft 530, and a spring 1 531 is provided between the other side and the stripping knife 511.

[0067] The peeling knife 511 in this embodiment can choose a blade with a thickness of 1-2 mm, and its lower end is sharpened. When the peeling knife 511 is not inserted into the gap of the ceramic sheet, under the action of the spring 1 531, the peeling knife 511 remains in a vertical downward state, and the longitudinal surface where its cutting edge is located overlaps the longitudinal surface where the bottom end of the linkage plate 512 is located, ensuring that when peeling, the insertion position of the peeling knife 511 is just located within the gap surface sensed by the linkage plate 512; and when the peeling knife 511 is inserted into the gap, since the peeling knife 511 has a certain thickness, it will squeeze the ceramic sheet to both sides, and the side that is not peeled has no retreat space due to its fixed position, thereby easily causing damage to the peeling knife 511 or the ceramic sheet, and after the peeling knife 511 is connected to the peeling knife 511 by the rotating shaft 530 in this embodiment, the peeling knife 511 can be deflected in the peeling direction to avoid squeezing the unpeeled ceramic sheet. Figure 11 As shown, the flipped peeling knife 511 pushes the ceramic sheet away to facilitate its peeling and separation. When the peeling knife 511 leaves the gap upward, it is reset by the spring 1 531.

[0068] Further implementation examples are attached Figure 1-11As shown, the lower end of the linkage plate 512 is slidably connected to a strip roller 528. The axis of the strip roller 528 is parallel to the gap surface during the peeling of the zinc oxide pressure-sensitive ceramic. In this embodiment, the strip roller 528 is similar to the steel ball in a ballpoint pen and is embedded in the bottom end of the linkage plate 512. It can slide but will not fall off.

[0069] Further implementation examples are attached Figure 1-11 As shown, the middle part of the lower end of the guide column 517 is provided with an upward T-shaped inner hole 524, and the upper end of the linkage plate 512 is a T-shaped structure that cooperates with the T-shaped inner hole 524; a spring 2 525 is provided between the top of the linkage plate 512 and the top of the T-shaped inner hole 524, and a contact A526 and a contact B527 are provided on the lower side of the top edge of the linkage plate 512 and the lower side of the top edge of the T-shaped inner hole 524 respectively. The spring 2 525, the contact A526 and the contact B527 constitute the micro switch, and the contact A526 and the contact B527 are respectively connected to the controller 6.

[0070] In this embodiment, when the linkage plate 512 is pushed upward, the spring 2 525 is compressed, and the contact A526 and the contact B527 are disconnected. When the lower end of the linkage plate 512 enters the gap surface of the ceramic sheet, the spring 2 525 pushes the linkage plate 512 downward, and causes the contact A526 and the contact B527 to contact, forming an electrical signal and transmitting it to the controller 6.

[0071] Further implementation examples are attached Figure 1-11 As shown, the guide column 1 517 is slidably connected to the guide sleeve 1 518 in the shell 510. The top of the guide column 1 517 is provided with a vertical downward internal threaded hole, and the interior thereof is threadedly connected to an adjusting screw 519. The top of the adjusting screw 519 is provided with a bevel gear 1 520, and one side of the bevel gear 1 520 is engaged with a bevel gear 2 521. The central axis of the bevel gear 2 521 extends out of the shell 510 and is connected to an adjustment handle 522.

[0072] When the height of the ceramic sheet changes, the adjusting handle 522 is rotated to drive the adjusting screw 519 to rotate. The adjusting screw 519 is fixed in the longitudinal direction. Therefore, the guide column 517 will move up and down relative to the adjusting screw 519, thereby driving the linkage plate 512 to move up and down, thereby adjusting the height of the linkage plate 512 to meet the peeling requirements of ceramic sheets of different heights.

[0073] Further implementation examples are attached Figure 1-11 As shown, a micro switch operating indicator light 523 is provided on the housing 510 , and the micro switch operating indicator light 523 is connected to the controller 6 .

[0074] The micro switch operating indicator light 523 of this embodiment is consistent with the start and stop of the micro switch. When the micro switch is on, the micro switch operating indicator light 523 is always on. When the micro switch is off, the micro switch operating indicator light 523 is off. When it is necessary to adjust the height of the linkage plate 512, it is first necessary to place the stacked ceramic sheets under the linkage plate 512, and adjust the linkage plate 512 to the lowest end of the V-shaped groove of the gap surface and contact it. However, it is necessary to ensure that the micro switch operating indicator light 523 is in a bright state. When the micro switch operating indicator light 523 is off, it means that the downward travel of the guide column 517 is too large and the micro switch is off. Therefore, it is necessary to ensure that the lowest end of the linkage plate 512 enters the V-shaped groove of the gap surface and the micro switch operating indicator light 523 is always on, which means that it is in a workable state.

[0075] Further implementation examples are attached Figure 1-11 As shown, the automatic pushing mechanism 4 includes a slide 41 arranged on one side of the stripping groove 2 and parallel to it, a pushing screw 42 parallel to the stripping groove 2 is provided in the slide 41, and a slider 43 is threadedly connected to the pushing screw 42. The slider 43 fits tightly with the inner wall of the slide 41. A crank arm 45 is provided on the side of the slider 43 close to the stripping groove 2, and the end of the crank arm 45 extends into the stripping groove 2; one end of the pushing screw 42 is connected to a pushing motor 44, and the pushing motor 44 is connected to the controller 6.

[0076] When pushing the ceramic piece, the pushing motor 44 drives the pushing screw 42 to rotate, and the slider 43 moves on the pushing screw 42 to push the material. When resetting, the pushing motor 44 can be reversed.

[0077] Further implementation examples are attached Figure 1-11 As shown, a V-shaped limiting groove 46 is provided at the end of the crank arm 45 near the automatic peeling mechanism 5. A limiting piece 7 is provided on each side of the peeling trough 2 near the discharge port 3. Multiple springs 38 are provided between the back of the limiting piece 7 and the sidewall of the peeling trough 2. The line connecting the midpoint of the perpendicular line between the two limiting pieces 7 and the intersection of the V-shaped limiting groove 46 is parallel to the length of the peeling trough 2. When the width of the ceramic sheet is smaller than the width of the peeling trough 2, the V-shaped limiting groove 46 and the limiting piece 7 work together to keep the ceramic sheet centered.

[0078] Further implementation examples are attached Figure 1-11 As shown, the inlet end of the limiting piece 7 is provided with an outwardly turned arc surface.

[0079] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. An automatic peeling system for square zinc oxide varistor ceramics after sintering, characterized by: The operating table (1) is provided with a stripping trough (2), one end of the stripping trough (2) is provided with a discharge port (3), an automatic stripping machine (5) is provided above the discharge port (3), and one side of the stripping trough (2) is provided with an automatic pushing mechanism (4); The automatic stripping machine (5) comprises a housing (510) standing on an operating table (1), one side of the housing (510) is suspended above the stripping slot (2), and a stripping component and a position sensing component are connected inside the housing (510); The stripping assembly includes a stripping knife (511) extending downward to below the housing (510), and the stripping knife (511) is connected to a reciprocating drive device (516); The position sensing component includes a linkage plate (512) extending downward to the bottom of the housing (510), wherein the lower end of the linkage plate (512) is located at a lower level than the lower end of the stripping knife (511); the linkage plate (512) and the stripping knife (511) are located on the same vertical plane, and the vertical plane is parallel to the gap surface when the zinc oxide pressure-sensitive ceramic is stripped; The upper end of the linkage plate (512) is connected to a guide column (517), and a micro switch is provided at the connection; the micro switch, the automatic pushing mechanism (4) and the reciprocating drive device (516) are connected to a controller (6).

2. The automatic peeling system for square zinc oxide varistor ceramics after sintering according to claim 1 is characterized by: The stripping knife (511) is connected to the reciprocating drive device (516) via a second guide column (513) and a connecting rod (515) connected to each other, wherein the second guide column (513) is slidably connected to a second guide sleeve (514) in the housing (510).

3. The automatic peeling system for square zinc oxide varistor ceramics after sintering according to claim 2 is characterized in that: A square inner hole (529) that is recessed upward is provided in the middle of the lower end of the second guide column (513), the width of the square inner hole (529) being greater than the thickness of the stripping knife (511), the upper end of the stripping knife (511) being connected to one side of the square inner hole (529) away from the discharge port (3) via a rotating shaft (530), and a spring (531) being provided between the other side and the stripping knife (511).

4. The automatic peeling system for square zinc oxide varistor ceramics after sintering according to claim 1 is characterized in that: The lower end of the linkage plate (512) is slidably connected to a strip roller (528), and the axial direction of the strip roller (528) is parallel to the gap surface when the zinc oxide pressure-sensitive ceramic is peeled.

5. The automatic peeling system for square zinc oxide varistor ceramics after sintering according to claim 1 is characterized by: The middle part of the lower end of the guide column (517) is provided with an upward T-shaped inner hole (524), and the upper end of the linkage plate (512) is a T-shaped structure that cooperates with the T-shaped inner hole (524); a spring (525) is provided between the top end of the linkage plate (512) and the top of the T-shaped inner hole (524); the lower side of the top edge of the linkage plate (512) and the lower side of the top edge of the T-shaped inner hole (524) are respectively provided with a contact A (526) and a contact B (527); the spring (525), the contact A (526) and the contact B (527) constitute the micro switch, and the contact A (526) and the contact B (527) are respectively connected to the controller (6).

6. The automatic peeling system for square zinc oxide varistor ceramics after sintering according to claim 1 is characterized by: The guide column 1 (517) is slidably connected to the guide sleeve 1 (518) in the housing (510). The top of the guide column 1 (517) is provided with a vertical downward internal threaded hole, and the interior of the guide column 1 (517) is threadedly connected to an adjusting screw (519). The top of the adjusting screw (519) is provided with a bevel gear 1 (520). One side of the bevel gear 1 (520) is meshed with a bevel gear 2 (521). The central axis of the bevel gear 2 (521) extends out of the housing (510) and is connected to an adjusting handle (522).

7. The automatic peeling system for square zinc oxide varistor ceramics after sintering according to claim 6, characterized in that: The housing (510) is provided with a micro switch operating indicator light (523), and the micro switch operating indicator light (523) is connected to the controller (6).

8. The automatic peeling system for square zinc oxide varistor ceramics after sintering according to claim 1 is characterized by: The automatic pushing mechanism (4) includes a slide groove (41) arranged on one side of the stripping groove (2) and parallel to the slide groove (2), a pushing screw (42) parallel to the stripping groove (2) is provided in the slide groove (41), a slider (43) is threadedly connected to the pushing screw (42), the slider (43) is tightly fitted with the inner wall of the slide groove (41), a crank arm (45) is provided on the side of the slider (43) close to the stripping groove (2), and the end of the crank arm (45) extends into the stripping groove (2); one end of the pushing screw (42) is connected to a pushing motor (44), and the pushing motor (44) is connected to the controller (6).

9. The automatic peeling system for square zinc oxide varistor ceramics after sintering according to claim 8, characterized in that: A V-shaped limiting groove (46) is provided on the side of the end of the crank arm (45) close to the automatic stripping machine (5), and a limiting piece (7) is provided on each side of the stripping groove (2) close to the discharge port (3), and a plurality of springs (8) are provided between the back of the limiting piece (7) and the side wall of the stripping groove (2); the line connecting the midpoint of the vertical line between the two limiting pieces (7) and the intersection of the V-shaped limiting groove (46) is parallel to the length direction of the stripping groove (2).

10. The automatic peeling system for square zinc oxide varistor ceramics after sintering according to claim 9, characterized in that: The inlet end of the limiting piece (7) is provided with an outward-turned arc surface.

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