An automatic loading and unloading device for trays

Abstract

The present invention relates to the technical field of automation equipment, and discloses a tray automatic loading and unloading device, which includes a base, which serves as the basic component of the overall device and is used to assemble and carry each processing mechanism and its subordinate structural components; a plurality of tray molds, which are equidistantly arranged within the base and are used to carry and load the materials during the tile processing; a quantitative cloth feeding mechanism, which is arranged on one side of the top of the base and is used to perform quantitative and automatic cloth feeding of raw materials during the tile processing. By adding and setting the quantitative cloth feeding mechanism, during the tile processing, this mechanism has two prominent advantages. First, it realizes automatic quantitative cloth feeding, precisely controls the cloth feeding amount each time, so that the material distribution of each tile product can reach a high degree of uniformity. Second, this mechanism also has the function of initially pressing and shaping the materials in the tray mold after cloth feeding, laying a good foundation for the subsequent processing links.

Description

Technical Field

[0001] The present invention relates to the technical field of automated equipment, and particularly to an automated pallet loading and unloading device. Background Art

[0002] Ceramic tiles, as an ideal choice for space decoration, light up life in diverse forms. In terms of appearance, their textures are delicate and vivid. From the rough texture imitating natural stone, to the warm texture imitating wood grain, and then to the pure colors of the modern minimalist style, they can be adapted to various home and commercial decoration styles. In terms of performance, ceramic tiles are hard and wear-resistant, capable of withstanding daily frequent trampling and scratching from furniture movement. Their waterproof and moisture-proof characteristics are excellent, being fearless of the moisture in the kitchen and the humidity in the bathroom, and remaining as good as new for a long time. When cleaning, simply wipe gently with a damp cloth, and the stains can be easily removed. Whether laid on the ground to bear footsteps or used to decorate the wall to enhance the style, ceramic tiles, with their beautiful and practical features, lay a solid and charming foundation for the space.

[0003] During the ceramic tile processing, many key processes such as raw material mixing, ball milling for pulping, drying and granulation, raw material feeding, pressing and demolding, and drying and sintering are involved. However, in the important step of feeding the dried and granulated raw materials onto the pallet mold, the traditional manual feeding method exposes many drawbacks. Manual operation is difficult to accurately control the amount of materials, resulting in a large deviation in the material feeding amount, which has an adverse impact on the uniformity of the subsequent product forming, making the product quality uneven. At the same time, during the manual feeding process, due to frequent scooping and pouring actions, it is extremely easy to cause material spillage, resulting in unnecessary losses and invisibly increasing the raw material cost of the enterprise. Moreover, this continuous feeding work has a high intensity. Workers need to repeat mechanical actions for a long time, with extremely high labor intensity, which is prone to fatigue and further affects work efficiency and product quality. Therefore, technicians in this field have proposed an automated pallet loading and unloading device to solve the above-mentioned technical problems. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides an automated pallet loading and unloading device, which solves the problem that the traditional manual feeding has a large deviation and is likely to cause uneven quality of the subsequent processed ceramic tile products.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: An automated pallet loading and unloading device includes

[0006] A base, which serves as the basic component of the overall device and is used for assembling and carrying each processing mechanism and its subordinate structural components;

[0007] Multiple pallet molds, which are equidistantly arranged within the base and are used for carrying and loading the materials during the ceramic tile processing;

[0008] A quantitative fabricating mechanism is arranged on one side of the top of the base and is used for quantitative and automatic fabricating of raw materials during the ceramic tile processing;

[0009] A molding mechanism is arranged in the middle of the front end of the base and is used for molding the raw materials after being processed by the quantitative fabricating mechanism;

[0010] A blank separating mechanism is arranged on one side of the middle of the front end of the base and is used for separating the tray mold after being processed by the molding mechanism from the blank molded therein;

[0011] A recycling mechanism is arranged at both ends of the base and is used for conveying and returning the used tray mold and recycling it again.

[0012] Preferably, the quantitative fabricating mechanism includes a processing box. A processing box is fixedly connected to one side of the top of the base. A storage cavity is formed in the upper middle part of the inner side of the processing box, and the bottom of the storage cavity is arranged in a W shape. A feeding pipe is arranged in the middle of the top of the processing box, and the inside of the feeding pipe is communicated with the inside of the storage cavity. Rotating rollers are rotatably connected to both sides of the middle of the bottom end of the storage cavity. A plurality of groups of quantitative cavities are equidistantly arranged on the outer wall surface of the rotating roller. Stepping motors are arranged at both ends of the middle part of one side of the processing box, and the output end of the stepping motor penetrates through the processing box and is connected to the middle part of one end of the corresponding rotating roller.

[0013] Preferably, the quantitative fabricating mechanism further includes a fabricating plate. A fabricating plate is slidably connected to the lower middle part of the inner side of the processing box. Sliding cavities are formed at the four corners of the lower middle part of the inner side of the processing box. Mounting cylinders are slidably connected to the inside of the sliding cavities, and the lower middle part of the outer wall of the corresponding mounting cylinder is respectively connected to one corner of the outer wall of the fabricating plate. A reset spring is fixedly connected to the middle part of the bottom end of the mounting cylinder, and the top end of the reset spring is respectively connected to the corresponding position of the top end of the inner wall of the corresponding sliding cavity. Raised particulate coatings are arranged on the outer wall of the mounting cylinder and the inner wall of the sliding cavity. Oval seats are rotatably connected to the lower middle part of both sides inside the processing box. The two oval seats are connected by a synchronous rod. A driving motor is arranged at the lower middle part of one side of the outer wall of the processing box, and the output end of the driving motor penetrates through the processing box and is connected to the middle part of one end of the same-side oval seat.

[0014] Preferably, the compression molding mechanism includes a first support arm, the middle of the front end of the base is fixedly connected with the first support arm, the middle of the inner top end of the first support arm is provided with a first hydraulic cylinder, the top end of the rod body of the first hydraulic cylinder is fixedly connected with a second mounting seat, the bottom end of the second mounting seat is fixedly connected with a molding press seat, a sealing strip is arranged at the bottom end of the molding press seat near the edge, a breathing cylinder is arranged in the middle of the molding press seat, and the inside of the breathing cylinder is communicated with the bottom of the molding press seat. A material filter plate is arranged in the middle and lower part of the inner side of the breathing cylinder, a filter cotton cover is fixedly connected to the top end of the material filter plate, a breathing groove is opened at the top end of the breathing cylinder, and the inside of the breathing groove is communicated with the inside of the breathing cylinder. Positioning rubber strips are arranged near the edges of the top end of the tray mold, and the outer diameter of the sealing strip is larger than that of the positioning rubber strip. Cavities are opened in the middle of the bottom ends of the positioning rubber strips.

[0015] Preferably, the green body separating mechanism includes a second support arm, the middle of the side of the front end of the base far from the processing box is fixedly connected with the second support arm, the middle of the inner top end of the second support arm is provided with a linear motion module, the middle of the bottom end of the linear motion module is fixedly connected with a second hydraulic cylinder, the top end of the rod body of the second hydraulic cylinder is fixedly connected with a first mounting seat, the bottom end of the first mounting seat is fixedly connected with a separating seat, a separating strip is arranged at the bottom end of the separating seat near the edge, and the outer diameter of the separating strip is smaller than that of the positioning rubber strip. A plurality of exhaust holes are equidistantly arranged near the edge in the middle and upper part of the separating strip.

[0016] Preferably, the green body separating mechanism further includes a vacuum generator, the middle of the top end of the separating seat is provided with a vacuum generator, and the vacuum negative pressure end of the vacuum generator is communicated with the inside of the separating seat. A plurality of groups of adsorption ports are equidistantly arranged at the bottom end of the inner wall of the separating seat, and the inside of the adsorption ports is communicated with the bottom end of the separating seat. The middle of one side of the rear end of the base is fixedly connected with an adapter seat, and a chain plate conveyor belt is arranged inside the adapter seat.

[0017] Preferably, the circulating treatment mechanism includes a rear end box, the rear end box is arranged at one end of the base far from the processing box, an inclined guiding cavity is opened in the middle of the inner side of the rear end box, a stepping conveyor belt is arranged in the middle and upper part of the inner side of the base, guiding rubber strips are arranged at the positions near the top ends on both sides of the inner wall of the base, and a return conveyor belt is arranged in the middle and lower part of the inner side of the base.

[0018] Preferably, the circulating treatment mechanism further includes a front end box, the front end box is arranged at one end of the base far from the rear end box, a lifting cavity is opened on one side inside the front end box, an inclined discharge port is arranged in the middle and upper part of one side of the lifting cavity, a sloping inlet is arranged in the middle and lower part of one side of the lifting cavity, and a rotating flap is rotatably connected to the middle and upper part of the inner wall of the lifting cavity close to the stepping conveyor belt.

[0019] Preferably, the cyclic processing mechanism further includes a reciprocating vertical lifter. The reciprocating vertical lifter is arranged at the inner bottom of the lifting cavity. At both ends of the middle part of one side of the reciprocating vertical lifter, lifting rods are fixedly connected. At equal intervals in the middle of the top end of the lifting rod, a plurality of insertion holes are opened. On both sides of the middle part of the bottom end of the tray mold, arc-shaped grooves are opened. At equal intervals in the middle of the top end of the arc-shaped groove, a plurality of positioning insertion rods are fixedly connected. The size of the positioning insertion rod matches that of the insertion hole.

[0020] Working principle: During the process of tile processing, first, the quantitative feeding mechanism is started. The raw materials after drying and granulation treatment enter the storage cavity inside the processing box through the feeding pipe on the processing box, and as the raw materials naturally sink and flow, they enter the quantitative cavity on the rotating roller. Then, the stepping motor on the processing box is started. While the rotating shaft of the stepping motor rotates, it drives the rotating roller at the bottom of the storage cavity to rotate synchronously. While the rotating roller rotates, it drives the quantitative cavity filled with raw materials on it to rotate synchronously. Then, while the quantitative cavity rotates, the raw materials inside it are rotated synchronously. After it breaks away from the limit of the inner wall of the processing box, it falls onto the cloth plate. At the same time, a part of the raw materials on the cloth plate falls into the tray mold through the cloth holes on it, and this process repeats to complete the quantitative feeding treatment during the tile processing. When the raw materials in the storage cavity fall onto the cloth plate, the driving motor on the processing box is started. While the rotating shaft of the driving motor rotates, it drives the elliptical seat on one side to rotate. While the elliptical seat rotates, it drives the elliptical seat on the other side to rotate through the synchronous rod. While the two elliptical seats rotate, they squeeze the cloth plate to move downward synchronously. While the cloth plate moves downward, it drives the mounting cylinders at its four corners to move downward synchronously in the sliding cavity inside the processing box. While the mounting cylinders move downward, the reset springs inside them are stretched and opened. Then, after the cloth plate moves to the lowest position, as the elliptical seat rotates, the pushing force on the cloth plate disappears. At this time, the reset springs in the mounting cylinders reset and contract. While the reset springs reset and contract, they drive the mounting cylinders on them to reset synchronously in the sliding cavity on the processing box. While the mounting cylinders reset, they also drive the cloth plate after moving downward to move upward and reset synchronously. At this time, affected by the friction of the convex particle coatings on the outer wall of the mounting cylinder and the inner wall of the sliding cavity, the mounting cylinder in the sliding cavity will vibrate while moving upward and conduct the vibration to the cloth plate synchronously. Therefore, while the cloth plate moves upward, affected by the vibration, the raw materials on it will also fall into the tray mold on the step conveyor belt through the cloth holes. During this process, not only can the vibration dispersion feeding treatment of the raw materials be completed, but also the re-screening treatment of the raw materials can be completed through the cooperation of vibration and the cloth holes on the cloth plate. After the above treatment, the raw materials on the cloth plate enter the tray mold at the bottom of the processing box through the cloth holes on it, and then the above cloth operation is repeated. While the cloth plate moves downward, it preliminarily compacts the raw materials in the tray mold to prevent the raw materials in the tray mold from spilling and being lost during transportation, thereby completing the quantitative and automatic feeding treatment of the raw materials during the tile processing;After the raw materials in the pallet mold are processed by the quantitative feeding mechanism, the stepping conveyor belt in the base is started and the raw materials are conveyed to the position of the first support arm. Then the molding mechanism is started. At this time, the rod of the hydraulic cylinder on the first support arm is pushed out. When the rod of the first hydraulic cylinder is pushed out, it drives the mounting seat two, the molding seat and the sealing strip at its bottom to move downward synchronously. During the downward movement of the molding seat and the sealing strip, first, the sealing strip contacts the positioning strip in the pallet mold. And as the sealing strip moves downward, the sealing strip squeezes the positioning strip in the pallet mold, causing the upper half of the positioning strip to move simultaneously towards the center of the mold, thus gathering the raw materials in the pallet mold towards the middle, making the raw materials in the pallet mold more compact. While the upper half of the positioning strip gathers towards the center of the mold, it also squeezes the cavity space in the middle and lower part inside the positioning strip to gradually shrink until it disappears. Finally, with the downward pressure of the molding seat, the upper part of the raw materials in the pallet mold is pressed again through the molding seat, thus pressing the originally loose raw materials in the pallet mold into the blank before tile firing, thereby completing the molding process of the tile blank. When the molding seat and the sealing strip at the bottom of the mounting seat two move downward, as the sealing strip contacts the positioning strip in the pallet mold, a sealed space is formed at the bottom of the molding seat. Then, as the molding seat and the sealing strip at its bottom continue to move downward, the space in the sealed space is squeezed, and the air inside it carries some dust on the surface of the blank and moves into the breathing cylinder on the molding seat. The air and the carried dust that enter the breathing cylinder first pass through the material filter plate at its bottom for filtration and interception, thus intercepting most of the dust carried in the air and making it return to the surface of the blank. The remaining dust in the air is further filtered and separated by the filter cotton cover in the breathing cylinder. Finally, the purified air after multiple filtration and separation is discharged into the external environment through the breathing slots on the breathing cylinder, thereby avoiding problems such as environmental pollution caused by dust dispersion during the molding process of the blank;After being processed by the compression molding mechanism, the green body is conveyed to the position of the second support arm by the step conveyor belt in the base. Then, the green body separation mechanism is activated. First, the rod on the second hydraulic cylinder is pushed out. While the rod on the second hydraulic cylinder is being pushed out, it drives the mounting seat one, the separation seat, and the separation rubber strip at its bottom to move downward synchronously. As the separation rubber strip moves downward, the separation rubber strip enters the gap between the green body and the positioning rubber strip in the tray mold, thus forming a relatively enclosed space at the bottom of the separation seat. As the separation seat continues to move downward, the separation seat squeezes the air in the lower space, causing the air to be discharged through the exhaust holes on the separation rubber strip. When the bottom of the separation seat fits against the surface of the green body, the separation seat stops moving downward. Then, the vacuum generator on the separation seat is activated. The vacuum generator evacuates the inside of the separation seat to a vacuum state and adsorbs and fixes the green body at the bottom. Then, the rod of the second hydraulic cylinder contracts and resets. While the rod of the second hydraulic cylinder contracts and resets, it drives the mounting seat one, the separation seat, the separation rubber strip, and the green body at its bottom to move upward, thus completing the separation process of the green body. After that, the linear motion module on the second support arm is activated. While moving, the linear motion module synchronously drives the second hydraulic cylinder, the mounting seat one, the separation seat, and the green body at its bottom to move onto the chain conveyor belt in the connection seat. Then, the green body is conveyed to the subsequent glazing station and firing station by the chain conveyor belt, thus completing the processing of the ceramic tile;Finally, the last cycle processing mechanism starts. The pallet mold after being processed by the blank separation mechanism continues to move along with the conveying of the stepping conveyor belt in the base. When the pallet mold moves to the end of the base, the pallet mold on the stepping conveyor belt enters the inclined guiding cavity in the rear end box. And the pallet mold entering the inclined guiding cavity continues to slide and fall onto the return conveyor belt at the bottom of the base under the guidance of the lower inclined surface of the inclined guiding cavity. Then it is conveyed and moved by the return conveyor belt, so that it returns to the initial processing position. Then when the pallet mold on the return conveyor belt moves to its end, the pallet mold enters the bottom of its lifting cavity through the inclined inlet on the front end box. When the pallet mold enters the bottom of the lifting cavity, the lifting rod on the reciprocating vertical lifter also synchronously inserts into the arc-shaped groove at the bottom of the pallet mold. And as the pallet mold moves, the positioning insertion rods in the arc-shaped groove also synchronously insert into the corresponding insertion holes on the lifting rod respectively, thus fixing the pallet mold on the lifting rod. After that, the reciprocating vertical lifter on the front end box starts and moves upward. While the reciprocating vertical lifter moves upward, it drives the lifting rod and the pallet mold on it to move upward synchronously. While the pallet mold moves upward, it jacks up the rotating flap in the lifting cavity to make it turn upward. Then when the pallet mold moves to the top position in the lifting cavity, the jacking force on the rotating flap disappears and it resets. After that, the reciprocating vertical lifter drives the lifting rod and the pallet mold on it to move downward and reset. When the pallet mold moves downward to the position of the rotating flap, the rotating flap separates the lifting rod from the pallet mold on it, and then makes the pallet mold fall onto the rotating flap. The reciprocating vertical lifter and the lifting rod move downward and reset to their original positions at the bottom of the lifting cavity. After that, the pallet mold on the rotating flap slides and falls onto the stepping conveyor belt in the base again under the guidance of its inclined surface. When the pallet mold enters the stepping conveyor belt, its position is guided and corrected by the guiding rubber strip inside it, so that the pallet mold after being used in a set of cycle process returns to the bottom of the processing box again for reprocessing and recycling, thus completing the recycling process of the pallet mold.;

[0021] The present invention provides a pallet automatic loading and unloading device. It has the following beneficial effects:

[0022] 1. By adding and setting a quantitative fabricating mechanism, the present invention has two prominent advantages in the process of tile processing. Firstly, it realizes automated quantitative fabricating, precisely controlling the amount of fabricating each time, enabling a high degree of uniformity in the material distribution of each tile product, completely avoiding the error problems easily occurring in manual fabricating, and greatly reducing the labor intensity of the staff. Secondly, this mechanism also has the function of initially pressing and shaping the material in the tray mold after fabricating, laying a good foundation for subsequent processing steps. Moreover, this processing method can also avoid the spillage loss of the material during the material conveying process after fabricating, and at the same time avoid the pollution to the processing environment caused by the material spillage.

[0023] 2. By adding and setting a molding mechanism, when pressing and shaping the material in the mold after fabricating, on the one hand, this mechanism adds positioning rubber strips inside the mold. During the molding process, the positioning rubber strips will deform due to the force, and by virtue of this deformation, an additional pressure can be exerted on the material in the mold, prompting the material to be arranged more closely and tightly, greatly improving the density and quality of the formed product. At the same time, the pressure during the pressing process of the green body can also be buffered by the positioning rubber strips, thus preventing situations such as cracks in the green body caused by excessive pressure. On the other hand, the added breathing structure during the pressing and forming period can timely and efficiently collect the material scattered due to pressing, effectively avoiding the scattered material everywhere and preventing pollution to the processing environment, maintaining the cleanliness and orderliness of the production environment, and helping to achieve green and efficient production.

[0024] 3. By adding and setting a green body separation mechanism, in the process of tile processing, when the tray mold completes the pressing task of the material, the pressure on the positioning rubber strips in the mold disappears, and then they quickly rebound and reset. This ingenious rebound action is of great significance, precisely generating a just - right gap between the green body and the positioning rubber strips. And the generation of this gap, firstly, avoids the hard impact that the rigid mold may cause to the green body in the traditional separation method, effectively protecting the integrity of the green body and greatly reducing the defective rate. Secondly, this gap provides natural convenience for the subsequent green body separation work, making the separation operation smoother and more efficient, and significantly improving the overall refinement degree and production efficiency of tile processing.

[0025] 4. By adding and setting up a cyclic processing mechanism, in the process of processing tiles, on the one hand, for the pallet molds that have been used, this mechanism can automatically and precisely convey them back to the initial position, completely eliminating the cumbersome steps of relying on manual handling and resetting by staff in the past, greatly reducing the labor burden, and avoiding time loss and potential errors caused by manual operation. On the other hand, with its efficient cyclic operation of the molds, this mechanism effectively ensures the continuity of the tile processing process, enables the tight connection of each process, significantly improves the overall tile processing efficiency, helps the enterprise produce more high-quality products per unit time, and enhances the market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic front-side structure diagram of the present invention;

[0027] Figure 2 is a schematic rear-side structure diagram of the present invention;

[0028] Figure 3 is a schematic partial structure diagram of the base of the present invention;

[0029] Figure 4 is a schematic horizontal cross-sectional view of the internal structure of the processing box of the present invention;

[0030] Figure 5 is a schematic longitudinal cross-sectional view of the internal structure of the processing box of the present invention;

[0031] Figure 6 is a schematic partial structure diagram of the cloth plate of the present invention;

[0032] Figure 7 is a schematic partial structure diagram of the first support arm of the present invention;

[0033] Figure 8 is a schematic partial structure diagram of the forming pressing seat of the present invention;

[0034] Figure 9 is a schematic cross-sectional view of the internal structure of the breathing cylinder of the present invention;

[0035] Figure 10 is a schematic partial structure diagram of the second support arm of the present invention;

[0036] Figure 11 is a schematic partial structure diagram of the separation seat of the present invention;

[0037] Figure 12 is a schematic cross-sectional view of the internal structure of the separation seat of the present invention;

[0038] Figure 13 is a schematic bottom structure diagram of the pallet mold of the present invention;

[0039] Figure 14Schematic cross-sectional view of the internal structure of the positioning rubber strip of the present invention;

[0040] Figure 15 Schematic cross-sectional view of the internal structure of the rear end box of the present invention;

[0041] Figure 16 Schematic cross-sectional view of the internal structure of the front end box of the present invention;

[0042] Figure 17 Schematic diagram for comparing the sizes of the sealing rubber strip, positioning rubber strip and separating rubber strip of the present invention.

[0043] Among them, 1. Base; 2. First support arm; 3. Second support arm; 4. Rear end box; 5. Guide rubber strip; 6. First mounting seat; 7. First hydraulic cylinder; 8. Second mounting seat; 9. Processing box; 10. Stepper motor; 11. Reciprocating vertical lifter; 12. Front end box; 13. Chain plate conveyor belt; 14. Connecting seat; 15. Second hydraulic cylinder; 16. Stepper conveyor belt; 17. Pallet mold; 18. Return conveyor belt; 19. Positioning rubber strip; 20. Storage cavity; 21. Quantitative cavity; 22. Sliding cavity; 23. Driving motor; 24. Return spring; 25. Cloth plate; 26. Synchronous rod; 27. Mounting cylinder; 28. Oval seat; 29. Rotating roller; 30. Protruding particle coating; 31. Sealing rubber strip; 32. Forming pressing seat; 33. Breathing cylinder; 34. Breathing groove; 35. Filter cotton cover; 36. Material filter plate; 37. Separation seat; 38. Separating rubber strip; 39. Vacuum generator; 40. Exhaust hole; 41. Adsorption port; 42. Arc groove; 43. Positioning insertion rod; 44. Cavity; 45. Inclined plane guiding cavity; 46. Inclined discharge port; 47. Rotating flap; 48. Inclined plane inlet; 49. Lifting rod; 50. Insertion hole; 51. Lifting cavity; 52. Linear motion module. Detailed implementation manners

[0044] Next, in combination with the accompanying drawings of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] Please refer to the attached Figure 1 -attached Figure 2 , the embodiment of the present invention provides a tray automatic loading and unloading device, including a base 1, which serves as the basic component of the overall device and is used to assemble and carry each processing mechanism and its subordinate structural components; a plurality of pallet molds 17, which are equidistantly arranged within the base 1 and are used to carry and load the materials during the tile processing process;

[0046] Please refer to the attachedFigure 4 - Attachment Figure 6 , a quantitative fabricating mechanism, which is arranged on one side of the top end of the base 1 and is used for quantitative and automatic fabricating of raw materials during the tile processing;

[0047] The quantitative fabricating mechanism includes a processing box 9. A processing box 9 is fixedly connected to one side of the top end of the base 1. A storage cavity 20 is opened in the upper middle part of the inner side of the processing box 9, and the bottom of the storage cavity 20 is arranged in a W shape. A feeding pipe is arranged in the middle of the top end of the processing box 9, and the inside of the feeding pipe is communicated with the inside of the storage cavity 20. Rotating rollers 29 are rotatably connected to both sides of the middle part of the bottom end of the storage cavity 20. A plurality of groups of quantitative cavities 21 are equidistantly opened on the outer wall surface of the rotating roller 29. Stepping motors 10 are arranged at both ends of the middle part of one side of the processing box 9, and the output ends of the stepping motors 10 penetrate through the processing box 9 and are connected to the middle part of one end of the corresponding rotating roller 29.

[0048] When the quantitative fabricating mechanism is started, the raw materials after drying and granulating treatment enter the storage cavity 20 in the processing box 9 through the feeding pipe on the processing box 9, and with the natural sinking and flowing of the raw materials, they enter the quantitative cavities 21 on the rotating roller 29. Then, the stepping motors 10 on the processing box 9 are started. While the rotating shafts of the stepping motors 10 are rotating, they drive the rotating rollers 29 at the bottom of the storage cavity 20 to rotate synchronously. While the rotating rollers 29 are rotating, they drive the quantitative cavities 21 filled with raw materials on them to rotate synchronously. Then, while the quantitative cavities 21 are rotating, the raw materials inside them are rotated synchronously. After they are separated from the limit of the inner wall of the processing box 9, they fall onto the fabricating plate 25. And at the same time, a part of the raw materials on the fabricating plate 25 fall into the tray mold 17 through the fabricating holes on it. This process is repeated to complete the quantitative fabricating treatment during the tile processing.

[0049] The quantitative fabricating mechanism further includes a fabricating plate 25. A fabricating plate 25 is slidably connected to the lower middle part of the inner side of the processing box 9. Sliding cavities 22 are opened at the four corners of the lower middle part of the inner side of the processing box 9. Installation cylinders 27 are slidably connected to the inside of the sliding cavities 22, and the lower middle part of the outer wall of the corresponding installation cylinder 27 is respectively connected to one corner of the outer wall of the fabricating plate 25. The middle part of the bottom end of the inside of the installation cylinder 27 is fixedly connected with a return spring 24, and the top ends of the return springs 24 are respectively connected to the corresponding positions at the top end of the inner wall of the corresponding sliding cavity 22. Raised particulate coatings 30 are arranged on the outer wall of the installation cylinder 27 and the inner wall of the sliding cavity 22. Elliptical seats 28 are rotatably connected to the lower middle parts of both sides inside the processing box 9. The two elliptical seats 28 are connected by a synchronous rod 26. A driving motor 23 is arranged at the lower middle part of one side of the outer wall of the processing box 9, and the output end of the driving motor 23 penetrates through the processing box 9 and is connected to the middle part of one end of the same-side elliptical seat 28.

[0050] When the raw materials in the storage cavity 20 fall onto the cloth distributing plate 25, the drive motor 23 on the processing box 9 starts. While the rotating shaft of the drive motor 23 rotates, it drives the elliptical seat 28 on one side to rotate. While the elliptical seat 28 rotates, it drives the elliptical seat 28 on the other side to rotate through the synchronizing rod 26. While the two elliptical seats 28 rotate, they squeeze the cloth distributing plate 25 to move downward synchronously. While the cloth distributing plate 25 moves downward, it drives the mounting cylinders 27 at its four corners to move downward synchronously in the sliding cavity 22 in the processing box 9. While the mounting cylinders 27 move downward, the reset springs 24 inside them are stretched and opened.

[0051] Then, after the cloth distributing plate 25 moves downward to the lowest position, the elliptical seat 28 rotates and the top thrust on the cloth distributing plate 25 disappears. At this time, the reset springs 24 in the mounting cylinders 27 reset and contract. While the reset springs 24 reset and contract, they drive the mounting cylinders 27 on them to reset synchronously in the sliding cavity 22 on the processing box 9. While the mounting cylinders 27 reset, they also synchronously drive the cloth distributing plate 25 after moving downward to move upward and reset. At this time, affected by the friction of the convex particulate coatings 30 on the outer wall of the mounting cylinder 27 and the inner wall of the sliding cavity 22, the mounting cylinder 27 in the sliding cavity 22 will vibrate while moving upward and synchronously conduct the vibration to the cloth distributing plate 25. Therefore, while the cloth distributing plate 25 moves upward, the raw materials on it will fall into the tray mold 17 on the step conveyor belt 16 through the cloth holes under the influence of vibration. In this process, not only can the vibration dispersion cloth processing of the raw materials be completed, but also the secondary sieving process of the raw materials can be completed through the cooperation of vibration and the cloth holes on the cloth distributing plate 25.

[0052] After the above treatment, the raw materials on the cloth distributing plate 25 enter the tray mold 17 at the bottom of the processing box 9 through the cloth holes on it, and then the above cloth operation is cycled. While the cloth distributing plate 25 moves downward, it preliminarily compacts the raw materials in the tray mold 17, thereby preventing the raw materials in the tray mold 17 from spilling and losing during the conveying process, so as to complete the quantitative and automatic cloth processing of the raw materials in the ceramic tile processing process.

[0053] Please refer to the attached Figure 7 -attached Figure 9 , the molding mechanism, which is arranged in the middle of the front end of the base 1 and is used for molding the raw materials after being processed by the quantitative cloth mechanism;

[0054] The compression molding mechanism includes a first support arm 2. The middle of the front end of the base 1 is fixedly connected to the first support arm 2. The middle of the inner top end of the first support arm 2 is provided with a first hydraulic cylinder 7. The top end of the rod body of the first hydraulic cylinder 7 is fixedly connected to a second mounting seat 8. The bottom end of the second mounting seat 8 is fixedly connected to a forming press seat 32. A sealing strip 31 is provided at the bottom end of the forming press seat 32 near the edge. A breathing cylinder 33 is provided in the middle of the forming press seat 32, and the inside of the breathing cylinder 33 is communicated with the bottom of the forming press seat 32. A material filter plate 36 is provided in the middle and lower part of the inner side of the breathing cylinder 33. The top end of the material filter plate 36 is fixedly connected to a filter cotton cover 35. A breathing groove 34 is opened at the top end of the breathing cylinder 33, and the inside of the breathing groove 34 is communicated with the inside of the breathing cylinder 33. Positioning rubber strips 19 are provided near the edges of the top end of the tray mold 17, and the outer diameter of the sealing strip 31 is larger than the outer diameter of the positioning rubber strip 19. Cavities 44 are opened in the middle of the bottom ends of the positioning rubber strips 19.

[0055] When the compression molding mechanism is started, at this time, the rod body of the first hydraulic cylinder 7 on the first support arm 2 is pushed out. While the rod body of the first hydraulic cylinder 7 is pushed out, it drives the second mounting seat 8, the forming press seat 32 and the sealing strip 31 at its bottom to move downward synchronously. During the downward movement of the forming press seat 32 and the sealing strip 31, first, the sealing strip 31 contacts the positioning rubber strip 19 in the tray mold 17. And as the sealing strip 31 moves downward, the sealing strip 31 squeezes the positioning rubber strip 19 in the tray mold 17, resulting in the upper half of the positioning rubber strip 19 moving toward the center position of the mold at the same time, thereby gathering the raw materials in the tray mold 17 toward the middle, making the raw materials in the tray mold 17 more compact.

[0056] Please refer to the appendix Figure 13 , while the upper half of the positioning rubber strip 19 gathers toward the center position of the mold, it also squeezes the cavity 44 in the middle and lower part inside the positioning rubber strip 19 until the space gradually shrinks to nothing. Finally, as the forming press seat 32 presses down, the upper part of the raw materials in the tray mold 17 is pressed again through the forming press seat 32, thereby pressing the originally loose raw materials in the tray mold 17 into the blank before tile firing, thus completing the compression molding process of the tile blank.

[0057] When the forming pressing seat 32 and the sealing strip 31 at the bottom of the mounting seat two 8 move downward, as the sealing strip 31 comes into contact with the positioning strip 19 in the tray mold 17, a sealed space is formed at the bottom of the forming pressing seat 32. Then, as the forming pressing seat 32 and the sealing strip 31 at its bottom continue to move downward, the space in the sealed space is squeezed, and the air inside it carries some dust on the surface of the green body and moves into the breathing cylinder 33 on the forming pressing seat 32. The air and the carried dust that enter the breathing cylinder 33 first pass through the material filter plate 36 at its bottom for filtering and interception, so that most of the dust carried in the air is intercepted and returned to the surface of the green body. The remaining dust in the air is further filtered and separated by the filter cotton cover 35 in the breathing cylinder 33. Finally, the purified air after multiple filtering and separation is discharged into the external environment through the breathing groove 34 on the breathing cylinder 33, so as to avoid problems such as environmental pollution caused by dust dispersion during the molding process of the green body by die pressing.

[0058] After the raw material in the tray mold 17 is pressed into a green body, when the forming pressing seat 32 moves upward, it drives the sealing strip 31 at its bottom to move upward synchronously. When the sealing strip 31 moves upward, it separates from the positioning strip 19 in the tray mold 17. After the sealing strip 31 separates from the positioning strip 19 in the tray mold 17, the pressure on the positioning strip 19 disappears and it resets synchronously, so that the positioning strip 19 in the tray mold 17 changes from the state of fitting with the edge of the green body to the state of separating from the edge of the green body. After the positioning strip 19 separates from the green body in the tray mold 17, a gap that meets the insertion size of the separating strip 38 is formed between the two, which is convenient for subsequent green body separation operations.

[0059] Please refer to the attached Figure 10 -attached Figure 12 , the green body separation mechanism, which is arranged on one side of the middle part of the front end of the base 1 and is used for separating the tray mold 17 processed by the molding mechanism and the green body formed by pressing inside it;

[0060] The green body separation mechanism includes the second support arm 3. A second support arm 3 is fixedly connected to the middle part of the side of the front end of the base 1 far away from the processing box 9. A linear motion module 52 is arranged in the middle of the inner top end of the second support arm 3. A second hydraulic cylinder 15 is fixedly connected to the middle of the bottom end of the linear motion module 52. The top end of the rod body of the second hydraulic cylinder 15 is fixedly connected to a first mounting seat 6. A separating seat 37 is fixedly connected to the bottom end of the first mounting seat 6. A separating strip 38 is arranged near the edge of the bottom end of the separating seat 37, and the outer diameter of the separating strip 38 is smaller than the outer diameter of the positioning strip 19. A plurality of exhaust holes 40 are equidistantly arranged near the edge of the middle upper part of the separating strip 38.

[0061] When the blank separating mechanism is started, first, the rod on the second hydraulic cylinder 15 is pushed out. While the rod on the second hydraulic cylinder 15 is being pushed out, it drives the mounting seat one 6, the separating seat 37, and the separating rubber strip 38 at its bottom to move downward synchronously. As the separating rubber strip 38 moves downward, the separating rubber strip 38 enters the gap formed between the blank in the pallet mold 17 and the positioning rubber strip 19, so that a relatively enclosed space is formed at the bottom of the separating seat 37. As the separating seat 37 continues to move downward, the separating seat 37 squeezes the air in the lower space thereof, and the air is discharged through the exhaust holes 40 on the separating rubber strip 38 until the bottom of the separating seat 37 fits the surface of the blank, and then the separating seat 37 stops moving downward.

[0062] Exhaust holes 40 are added in the upper-middle part of the separating rubber strip 38. On the one hand, it is for discharging the air between the blank and the separating seat 37, so as to facilitate the subsequent blank separation operation. On the other hand, it is to prevent the exhaust holes 40 from being blocked when the separating rubber strip 38 is deformed under pressure, resulting in problems such as subsequent vacuum failure due to the inability to normally discharge the air between the separating seat 37 and the exhaust holes 40.

[0063] The blank separating mechanism further includes a vacuum generator 39. A vacuum generator 39 is provided in the middle of the top end of the separating seat 37, and the vacuum negative pressure end of the vacuum generator 39 is communicated with the inside of the separating seat 37. A plurality of groups of adsorption ports 41 are equidistantly arranged at the bottom end of the inner wall of the separating seat 37, and the inside of the adsorption ports 41 is communicated with the bottom end of the separating seat 37. One side of the middle part of the rear end of the base 1 is fixedly connected with an adapter seat 14, and a chain plate conveyor belt 13 is arranged inside the adapter seat 14.

[0064] Then the vacuum generator 39 on the separating seat 37 is started. The vacuum generator 39 evacuates the inside of the separating seat 37 into a vacuum state and adsorbs and fixes the blank at the bottom. Then the rod of the second hydraulic cylinder 15 contracts and resets. While the rod of the second hydraulic cylinder 15 contracts and resets, it drives the mounting seat one 6, the separating seat 37, the separating rubber strip 38, and the blank at its bottom to move upward, thus completing the blank separation process.

[0065] After that, the linear motion module 52 on the second support arm 3 is started. While moving, the linear motion module 52 synchronously drives the second hydraulic cylinder 15, the mounting seat one 6, the separating seat 37, and the blank at its bottom to move onto the chain plate conveyor belt 13 inside the adapter seat 14. Then the blank is conveyed to the subsequent glazing station and firing station through the chain plate conveyor belt 13, thus completing the processing of the ceramic tile.

[0066] Please refer to the appendix Figure 3 and 15 - appendix Figure 16, a recycling mechanism, which is arranged at both ends of the base 1, is used to convey and return the tray mold 17 after use, and perform recycling processing on it.

[0067] The recycling mechanism includes a rear-end box 4. The rear-end box 4 is arranged at one end of the base 1 away from the processing box 9. An inclined surface guiding cavity 45 is opened in the middle of the inner side of the rear-end box 4. A stepping conveyor belt 16 is arranged in the upper middle part of the inner side of the base 1. Guide rubber strips 5 are arranged at positions close to the top on both sides of the inner wall of the base 1. A return conveyor belt 18 is arranged in the lower middle part of the inner side of the base 1.

[0068] When the recycling mechanism is started, the tray mold 17 after being processed by the blank separating mechanism continues to move along with the conveying of the stepping conveyor belt 16 in the base 1. When the tray mold 17 moves to the end of the base 1, the tray mold 17 on the stepping conveyor belt 16 enters into the inclined surface guiding cavity 45 in the rear-end box 4, and the tray mold 17 entering the inclined surface guiding cavity 45 slides down along the lower inclined surface of the inclined surface guiding cavity 45 and falls onto the return conveyor belt 18 at the bottom of the base 1, and then is conveyed and moved by the return conveyor belt 18, so that it returns to the initial processing position.

[0069] The recycling mechanism further includes a reciprocating vertical lifter 11. The reciprocating vertical lifter 11 is arranged at the bottom of the inner side of the lifting cavity 51. Both ends of the middle part of one side of the reciprocating vertical lifter 11 are fixedly connected with lifting rods 49. A plurality of insertion holes 50 are equidistantly opened in the middle of the top of the lifting rod 49. Arc-shaped grooves 42 are opened on both sides of the middle part of the bottom end of the tray mold 17. A plurality of positioning insertion rods 43 are equidistantly fixedly connected to the middle of the top of the arc-shaped groove 42. The sizes of the positioning insertion rods 43 and the insertion holes 50 match.

[0070] Then when the tray mold 17 on the return conveyor belt 18 moves to its end, the tray mold 17 enters the bottom of its lifting cavity 51 through the inclined surface inlet 48 on the front-end box 12. When the tray mold 17 enters the bottom of the lifting cavity 51, the lifting rods 49 on the reciprocating vertical lifter 11 also synchronously insert into the arc-shaped grooves 42 at the bottom of the tray mold 17, and as the tray mold 17 moves, the positioning insertion rods 43 in the arc-shaped grooves 42 also synchronously insert into the corresponding insertion holes 50 on the lifting rods 49 respectively, so as to fix the tray mold 17 on the lifting rods 49.

[0071] Adding a plurality of positioning insertion rods 43 inside the arc-shaped groove 42 is on the one hand to ensure the accuracy of the position of the tray mold 17 during the conveying by the reciprocating vertical lifter 11, so as to position the tray mold 17 through it, and on the other hand to prevent the tray mold 17 from reversing and falling during the contact with the rotating flap 47 during the ascending process, so as to ensure the normal upward movement and discharge of the tray mold 17.

[0072] The cyclic processing mechanism further includes a front-end box 12. The front-end box 12 is arranged at one end of the base 1 away from the rear-end box 4. On one side inside the front-end box 12, a lifting cavity 51 is formed. At the upper middle part on one side of the lifting cavity 51, an inclined discharge port 46 is arranged. At the lower middle part on one side of the lifting cavity 51, an inclined surface inlet 48 is arranged. At the upper middle part on the inner wall side of the lifting cavity 51 close to the step conveyor belt 16, a rotating flap 47 is rotatably connected.

[0073] After that, the reciprocating vertical lifter 11 on the front-end box 12 is started and moves upward. While the reciprocating vertical lifter 11 moves upward, it drives the lifting rod 49 and the tray mold 17 thereon to move upward synchronously. While the tray mold 17 moves upward, it jacks up the rotating flap 47 in the lifting cavity 51 to make it turn upward. Then, when the tray mold 17 moves up to the top position in the lifting cavity 51, the jacking force received by the rotating flap 47 disappears and it resets. After that, the reciprocating vertical lifter 11 drives the lifting rod 49 and the tray mold 17 thereon to move downward and reset. When the tray mold 17 moves down to the position of the rotating flap 47, the rotating flap 47 separates the lifting rod 49 and the tray mold 17 thereon. Then, the tray mold 17 falls onto the rotating flap 47. The reciprocating vertical lifter 11 and the lifting rod 49 move downward and reset to the original position at the bottom of the lifting cavity 51. After that, the tray mold 17 on the rotating flap 47 slides through the inclined discharge port 46 again under the guidance of its inclined surface and falls onto the step conveyor belt 16 in the base 1. When the tray mold 17 enters the step conveyor belt 16, the guiding rubber strip 5 inside it guides and corrects its position. Thus, the tray mold 17 after one set of cyclic process is used returns to the bottom of the processing box 9 again for reprocessing and recycling, thereby completing the cyclic utilization process of the tray mold 17.

[0074] Please refer to the attached Figure 17 The sizes of the sealing rubber strip 31, the positioning rubber strip 19, and the separating rubber strip 38 are not the same. The outer diameter size of the sealing rubber strip 31 is slightly larger than the outer diameter size of the positioning rubber strip 19. The inner side of the sealing rubber strip 31 is in contact and friction with the outer side of the positioning rubber strip 19 when they are sleeved. Therefore, while the sealing rubber strip 31 moves downward, its bottom will squeeze the positioning rubber strip 19 to move towards the center, thereby pressing the edge of the raw material in the tray mold 17. At the same time, while the positioning rubber strip 19 deforms, it will also squeeze the cavity 44 inside it to disappear. When the pressure received by the positioning rubber strip 19 from the sealing rubber strip 31 disappears, the cavity 44 in the positioning rubber strip 19 resets, thereby driving the positioning rubber strip 19 back to its original shape and position, thus generating a gap between the green body and the positioning colloid 19. When the green body is separated, the separating rubber strip 38 enters the gap, thereby facilitating the subsequent separation operation of the green body.

[0075] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic loading and unloading device for trays, characterized in that, including a base (1), which serves as the basic component of the overall device and is used to assemble and carry each processing mechanism and its subordinate structural components; a plurality of pallet molds (17), which are equidistantly arranged within the base (1) and are used to carry and load the materials during the tile processing; a quantitative feeding mechanism, which is arranged on one side of the top end of the base (1) and is used to perform quantitative and automatic feeding of raw materials during the tile processing; the quantitative feeding mechanism includes a processing box (9), a processing box (9) is fixedly connected to one side of the top end of the base (1), a storage cavity (20) is formed in the upper middle part of the inner side of the processing box (9), and the bottom of the storage cavity (20) is arranged in a W shape. A feeding pipe is arranged in the middle of the top end of the processing box (9), and the inside of the feeding pipe is communicated with the inside of the storage cavity (20). Rotating rollers (29) are rotatably connected to both sides of the middle part of the bottom end of the storage cavity (20). A plurality of groups of quantitative cavities (21) are equidistantly arranged on the outer wall surface of the rotating roller (29). Stepping motors (10) are arranged at both ends of the middle part of one side of the processing box (9), and the output ends of the stepping motors (10) penetrate through the processing box (9) and are connected to the middle part of one end of the corresponding rotating roller (29); the quantitative feeding mechanism further includes a cloth spreading plate (25), the cloth spreading plate (25) is slidably connected to the lower middle part of the inner side of the processing box (9). Sliding cavities (22) are formed at the four corners of the lower middle part of the inner side of the processing box (9). Installation cylinders (27) are slidably connected to the inside of the sliding cavities (22), and the middle part of the lower side of the outer wall of the corresponding installation cylinder (27) is respectively connected to one corner of the outer wall of the cloth spreading plate (25). The middle part of the bottom end of the inside of the installation cylinder (27) is fixedly connected with a return spring (24), and the top ends of the return springs (24) are respectively connected to the corresponding positions at the top end of the inner wall of the corresponding sliding cavity (22). Raised particulate coatings (30) are arranged on the outer wall of the installation cylinder (27) and the inner wall of the sliding cavity (22). Oval seats (28) are rotatably connected to the lower middle parts of both sides inside the processing box (9), and the two oval seats (28) are connected by a synchronizing rod (26). A driving motor (23) is arranged at the lower middle part of one side of the outer wall of the processing box (9), and the output end of the driving motor (23) penetrates through the processing box (9) and is connected to the middle part of one end of the same-side oval seat (28); a molding mechanism, which is arranged in the middle of the front end of the base (1) and is used to press and mold the raw materials after being processed by the quantitative feeding mechanism; The compression molding mechanism includes a first support arm (2). The middle of the front end of the base (1) is fixedly connected to the first support arm (2). In the middle of the inner top end of the first support arm (2), a first hydraulic cylinder (7) is provided. The top end of the rod body of the first hydraulic cylinder (7) is fixedly connected to a second mounting seat (8). The bottom end of the second mounting seat (8) is fixedly connected to a molding press seat (32). A sealing rubber strip (31) is provided at the bottom end of the molding press seat (32) near the edge. A breathing cylinder (33) is provided in the middle of the molding press seat (32), and the inside of the breathing cylinder (33) is communicated with the bottom of the molding press seat (32). A material filter plate (36) is provided in the middle and lower part of the inner side of the breathing cylinder (33). The top end of the material filter plate (36) is fixedly connected to a filter cotton cover (35). A breathing groove (34) is opened at the top end of the breathing cylinder (33), and the inside of the breathing groove (34) is communicated with the inside of the breathing cylinder (33). Positioning rubber strips (19) are provided near the edges of the top end of the tray mold (17), and the outer diameter of the sealing rubber strip (31) is larger than the outer diameter of the positioning rubber strip (19). Cavities (44) are opened in the middle of the bottom ends of the positioning rubber strips (19). The blank separation mechanism is arranged on one side of the middle of the front end of the base (1) and is used for separating the tray mold (17) processed by the compression molding mechanism from the blank molded inside it. The recycling mechanism is arranged at both ends of the base (1) and is used for conveying and returning the used tray mold (17) and recycling it again.

2. The automatic loading and unloading device for trays according to claim 1, wherein The blank separation mechanism includes a second support arm (3). The middle of the side of the front end of the base (1) far from the processing box (9) is fixedly connected to the second support arm (3). A linear motion module (52) is provided in the middle of the inner top end of the second support arm (3). The middle of the bottom end of the linear motion module (52) is fixedly connected to a second hydraulic cylinder (15). The top end of the rod body of the second hydraulic cylinder (15) is fixedly connected to a first mounting seat (6). The bottom end of the first mounting seat (6) is fixedly connected to a separation seat (37). A separation rubber strip (38) is provided at the bottom end of the separation seat (37) near the edge, and the outer diameter of the separation rubber strip (38) is smaller than the outer diameter of the positioning rubber strip (19). A plurality of exhaust holes (40) are equidistantly opened near the edge in the middle and upper part of the separation rubber strip (38).

3. The automated loading and unloading device for trays according to claim 2, wherein The blank separation mechanism further includes a vacuum generator (39). The vacuum generator (39) is provided in the middle of the top end of the separation seat (37), and the vacuum negative pressure end of the vacuum generator (39) is communicated with the inside of the separation seat (37). A plurality of groups of adsorption ports (41) are equidistantly opened at the bottom end of the inner wall of the separation seat (37), and the inside of the adsorption ports (41) is communicated with the bottom end of the separation seat (37). A connection seat (14) is fixedly connected to one side of the middle of the rear end of the base (1), and a chain conveyor belt (13) is arranged inside the connection seat (14).

4. A tray automatic loading and unloading device according to claim 1, characterized in that, The cyclic processing mechanism includes a rear-end box (4). The rear-end box (4) is arranged at one end of the base (1) away from the processing box (9). An inclined surface guiding cavity (45) is formed in the middle of the inner side of the rear-end box (4). A stepping conveyor belt (16) is arranged in the upper middle part of the inner side of the base (1). Guide rubber strips (5) are arranged at positions near the top on both sides of the inner wall of the base (1). A return conveyor belt (18) is arranged in the lower middle part of the inner side of the base (1).

5. An automatic loading and unloading device for trays according to claim 4, characterized in that, The cyclic processing mechanism further includes a front-end box (12). The front-end box (12) is arranged at one end of the base (1) away from the rear-end box (4). A lifting cavity (51) is formed in one side of the inside of the front-end box (12). An inclined discharge port (46) is arranged in the upper middle part of one side of the lifting cavity (51). An inclined surface inlet (48) is arranged in the lower middle part of one side of the lifting cavity (51). A rotating flap (47) is rotatably connected to the upper middle part of the inner wall of the lifting cavity (51) close to the stepping conveyor belt (16).

6. The automatic loading and unloading device for trays according to claim 5, wherein, The cyclic processing mechanism further includes a reciprocating vertical lifter (11). The reciprocating vertical lifter (11) is arranged at the bottom of the inner side of the lifting cavity (51). Lifting rods (49) are fixedly connected to both ends of the middle part of one side of the reciprocating vertical lifter (11). A plurality of insertion holes (50) are equidistantly formed in the middle of the top of the lifting rods (49). Arc-shaped grooves (42) are formed on both sides of the middle part of the bottom end of the tray mold (17). A plurality of positioning insertion rods (43) are equidistantly and fixedly connected to the middle of the top of the arc-shaped grooves (42). The sizes of the positioning insertion rods (43) and the insertion holes (50) match each other.

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