A kind of anti-adhesion pet snack forming drying integrated processing device

Abstract

The application discloses an anti-adhesion pet snack forming and drying integrated processing device, and belongs to the technical field of pet snack processing equipment. The device comprises a rack, a drying box vertically arranged on the top of the rack, and a vertical conveying belt arranged in the drying box. The vertical conveying belt is hingedly connected with a plurality of mesh plates. The drying box is matched with a forming box arranged on the top of the side of the drying box and a roller pressing forming mechanism arranged in the forming box and a horizontal conveying belt to form an integrated forming and drying processing line. The mesh plates are supported by horizontal support plates to ensure that the mesh plates stably convey the pet snacks downward in a horizontal state along with the vertical conveying belt, and the mesh plates are automatically shaken to drop the dried snacks by gravity when the snacks are conveyed to the bottom and naturally turned downward. The device effectively avoids the adhesion between the material and the mesh plates, realizes the continuous heating and drying operation from top to bottom, significantly saves the equipment floor space, and reduces the energy consumption.

Description

Technical Field

[0001] This invention relates to an integrated forming and drying processing device, and more particularly to an integrated forming and drying processing device for anti-sticking pet snacks, belonging to the field of pet snack processing technology. Background Technology

[0002] Currently, the processing and production of pet snacks mainly adopts a split process. The material is first pressed and formed by a roller forming machine using a mold roller. The semi-wet pet snacks after forming are then output by a conveyor belt and enter an independent drying line for heating and drying. This production line, which consists of multiple pieces of equipment connected in series, such as roller forming, conveyor belt conveying, and drying line drying, is currently the main method for pet snack forming and drying operations.

[0003] However, in practical applications, the traditional split processing mode requires the molding machine and the dryer to be arranged in a linear assembly line as independent equipment. This not only leads to higher equipment investment costs, but also makes the entire production line occupy a large area. Furthermore, the drying method of the drying line means that the end feed port is always open, which causes heat loss. In addition, after drying, the material is easy to stick to the conveyor belt and needs to be scraped and cleaned, which is inconvenient to use.

[0004] To address this issue, an integrated processing device for forming and drying anti-sticking pet snacks was designed to optimize the above-mentioned problems. Summary of the Invention

[0005] The main objective of this invention is to provide an integrated processing device for forming and drying anti-sticking pet snacks, in order to solve the problems mentioned in the background art.

[0006] The objective of this invention can be achieved by adopting the following technical solution: An integrated processing device for forming and drying anti-sticking pet snacks includes a frame, a drying box vertically mounted on the top of the frame, a vertical conveyor belt inside the drying box, several mesh plates hinged to the surface of the vertical conveyor belt, and a horizontal support plate fixed to the outside of the vertical conveyor belt. The horizontal support plate is attached to the bottom of the mesh plate in the downward section to support the mesh plate and keep it horizontal. A forming box is provided on the top side of the drying oven. A roller forming mechanism is provided inside the forming box. A horizontal conveyor belt is provided below the roller forming mechanism. A power roller and a movable roller are provided at both ends of the horizontal conveyor belt. The forming box is equipped with a telescopic mechanism. The output end of the telescopic mechanism is connected to the movable roller, which is used to drive the movable roller to move horizontally back and forth, so as to drive the horizontal conveyor belt to extend into the drying box or retract into the forming box. A tensioning mechanism is installed below the horizontal conveyor belt to maintain the belt tension during the extension and retraction of the horizontal conveyor belt; The side wall of the forming box is equipped with a one-way transmission mechanism. The input end of the one-way transmission mechanism is linked to the telescopic mechanism, and the output end is connected to the roll forming mechanism and the power roller drive. When the horizontal conveyor belt extends, the one-way transmission mechanism transmits power, drives the roll forming mechanism to discharge material and drives the horizontal conveyor belt to run. When the horizontal conveyor belt retracts, the one-way transmission mechanism interrupts power transmission, the roll forming mechanism stops discharging material, and the horizontal conveyor belt retracts with the movable roller, spreading the material on the belt surface and unloading it onto the lower mesh plate.

[0007] Preferably, a heater is provided on the side wall of the drying chamber, and a collection box is provided at the bottom of the frame. The collection box is located directly below the discharge port at the bottom of the drying chamber and is used to receive the dried finished products that fall off the mesh plate after it turns and flips with the vertical conveyor belt.

[0008] This structure can automatically unload and collect finished products by the weight of the materials themselves, eliminating the need for an additional scraping device. At the same time, it reduces the material discharge opening at the bottom of the drying chamber, thereby reducing internal heat loss and lowering equipment energy consumption.

[0009] Preferably, the top of the forming box is provided with a hopper, and the roll forming mechanism includes a pressure roller, a mold roller and a stirring shaft; The pressure roller and the mold roller are parallel and tangentially mounted below the discharge of the hopper, while the stirring shaft is mounted rotatably at the discharge port of the hopper to guide the material discharge.

[0010] This setup prevents raw materials from bridging and agglomerating at the hopper outlet, ensuring continuous and smooth material feeding. At the same time, the double-roller extrusion process enables continuous roll forming of the material, resulting in high forming efficiency and uniform and stable billet shape.

[0011] Preferably, the telescopic mechanism includes a front end plate, a rear end plate, a guide rod, a U-shaped frame, a scraper, a screw, a worm gear, a worm, and a drive motor; The front and rear plates are fixed inside the forming box with a gap between them. The guide rod is fixed horizontally between the front and rear plates. The U-shaped frame is slidably sleeved on the outside of the guide rod. The movable roller is rotatably installed on the end of the U-shaped frame facing the drying box. The screw is horizontally rotatably mounted between the front and rear plates, and the screw and the U-shaped frame form a threaded transmission engagement; The worm gear is coaxially fixed to the end of the screw, the worm is rotatably mounted on the side wall of the molding box and meshes with the worm gear, the drive motor is fixed to the outer side wall of the molding box, and the output shaft of the drive motor is coaxially fixedly connected to the worm. The scraper is fixed between the ends of the U-shaped frame, and the scraping edge of the scraper is in contact with the surface of the horizontal conveyor belt, so as to scrape the material on the belt surface onto the lower mesh plate when the horizontal conveyor belt retracts.

[0012] This structure uses a worm gear and screw drive, which ensures smooth operation and high transmission accuracy. It can precisely control the extension and retraction of the horizontal conveyor belt. At the same time, it integrates a scraper structure, which can simultaneously scrape off and unload materials during the retraction of the conveyor belt. The action linkage is strong and no additional unloading drive is required.

[0013] Preferably, the tensioning mechanism includes a vertical groove, a slider, a compression spring, a compression roller, and a guide roller; The vertical groove is vertically opened on the inner wall of the forming box, the slider is slidably installed inside the vertical groove, and the compression spring is connected between the top of the slider and the inner top wall of the vertical groove. The extrusion roller is rotatably mounted between two sets of sliders and presses against the inner surface of the horizontal conveyor belt; The guide roller is rotatably installed on the inner wall of the forming box, and the guide roller is in contact with the outer surface of the horizontal conveyor belt, cooperating with the extrusion roller to tension the belt.

[0014] This structure relies on spring force to automatically compensate for changes in belt length during the expansion and contraction of the horizontal conveyor belt, thus maintaining belt tension at all times and preventing the conveyor belt from loosening and falling off. The structure is simple and reliable, requiring no additional power control.

[0015] Preferably, the one-way transmission mechanism includes a ratchet, a driving pulley, a ratchet tooth, a return spring, a first driven pulley, a first toothed belt, a second driven pulley, a third driven pulley, a second toothed belt, a fourth driven pulley, a fifth driven pulley, a third toothed belt, and a transmission gear; The ratchet is coaxially fixed to the outer end of the worm extending from the molding box. The drive pulley is rotatably mounted on the side of the molding box, and the worm passes through the center of the drive pulley coaxially. The end face of the drive pulley away from the molding box has an installation groove. The ratchet is hinged to the inside of the installation groove, and the return spring is connected between the ratchet and the inner wall of the installation groove. The ratchet teeth engage with the outer ring teeth of the ratchet wheel to form a one-way ratchet pawl transmission pair; The first driven pulley is coaxially and fixedly connected to the power roller, and the first toothed belt tension sleeve is installed on the outside of the driving pulley and the first driven pulley; The second driven pulley is coaxially fixedly installed on the side of the first driven pulley, the third driven pulley is coaxially fixed to the end of the pressure roller, and the second toothed belt is tensioned and sleeved on the outside of the second driven pulley and the third driven pulley; The fourth driven pulley is coaxially fixed to the side of the third driven pulley, and the fifth driven pulley is coaxially fixed to the end of the stirring shaft. The third toothed belt is tensioned and sleeved on the outside of the fourth and fifth driven pulleys. Both the pressure roller and the die roller are coaxially fixed with transmission gears at their ends, and the two sets of transmission gears mesh with each other for transmission.

[0016] This structure utilizes the unidirectional transmission characteristics of pawls and ratchet wheels to achieve coordinated actions of extending for feeding and forming, and retracting to stop discharging. It eliminates the need for an additional independent drive and electrical control system, ensuring high reliability of the mechanical linkage and reducing equipment manufacturing costs and control complexity.

[0017] Preferably, the material-bearing surface of the mesh plate has several breathable mesh holes, and one side of the mesh plate is hinged to the surface of the vertical conveyor belt through a hinge seat. The support surface of the horizontal support plate is a smooth plane. When the mesh plate moves downward with the vertical conveyor belt, its bottom surface is in contact with the top surface of the horizontal support plate to maintain a horizontal state.

[0018] The breathable mesh allows hot air to penetrate the bottom of the material, improving drying uniformity and efficiency. The hinged mesh plate, together with the support plate, can stably support the material during downward conveying and automatically flip and unload at the reversing point, effectively preventing material sticking.

[0019] Preferably, a conveyor motor is fixed to the outer wall of the drying box. The conveyor motor is coaxially connected to the upper drive roller of the vertical conveyor belt to drive the vertical conveyor belt to operate intermittently. The step distance of the vertical conveyor belt is matched with the arrangement spacing of the mesh plates.

[0020] The intermittent operation mode can be precisely matched with the material spreading rhythm of the horizontal conveyor belt, ensuring that each mesh plate can receive uniform material, realizing a continuous forming, spreading, and drying process, resulting in higher overall production efficiency.

[0021] Preferably, the scraping edge of the scraper is made of polyurethane, the scraper is tilted towards one side of the drying box, and the angle between the scraping edge and the upper surface of the horizontal conveyor belt is 30°-60°.

[0022] The polyurethane scraper edge is wear-resistant and does not damage the belt surface, which can extend the service life of the scraper and the conveyor belt. The inclined scraping angle can guide the material to fall smoothly, avoid material splashing and piling, and ensure that the material thickness is uniform.

[0023] Preferably, a sliding rod is fixed between the upper and lower ends of the vertical groove, and the sliding rod passes through the center of the compression spring and is slidably connected to the slider.

[0024] The slide bar can precisely guide the lifting and lowering movement of the slider, preventing the slider from jamming or deviating. At the same time, it can limit the radial deformation of the compression spring, ensuring a stable and reliable tension output of the tensioning mechanism.

[0025] The beneficial effects of this invention are as follows: This invention provides an integrated processing device for anti-sticking pet snacks, consisting of a drying chamber vertically mounted on top of a frame and a vertical conveyor belt inside. Several mesh plates are hinged to the surface of the vertical conveyor belt. This, along with the forming chamber on the top side of the drying chamber and its internal roller forming mechanism and horizontal conveyor belt, forms an integrated forming and drying processing line. The mesh plates, supported by horizontal support plates, ensure that after receiving pet snacks in a horizontal state, they are stably conveyed downwards by the vertical conveyor belt. When they reach the bottom, they naturally flip downwards, using gravity to automatically shake off the dried snacks, effectively preventing the material from sticking to the mesh plates. At the same time, it achieves continuous heating and drying operations from top to bottom, significantly saving equipment space and reducing energy consumption. By setting a power roller at one end of the horizontal conveyor belt and a movable roller at the other end, and configuring a tensioning mechanism consisting of a vertical groove, a slider, a compression spring, a slide rod, a compression roller and a guide roller, as well as a telescopic mechanism consisting of a front end plate, a rear end plate, a guide rod, a U-shaped frame, a scraper, a screw, a worm gear, a worm and a drive motor, the horizontal conveyor belt can actively extend horizontally into the drying box during the feeding process, evenly spreading pet snacks on the top of the horizontal mesh plate, realizing automated feeding, and making the feeding operation more convenient and efficient; By setting a one-way transmission mechanism on the side of the forming box, consisting of a ratchet, a drive pulley, a mounting groove, ratchet teeth, a return spring, a first driven pulley, a first toothed belt, a second driven pulley, a third driven pulley, a second toothed belt, a fourth driven pulley, a fifth driven pulley, a third toothed belt, and a transmission gear, the horizontal conveyor belt extends into the drying box while simultaneously driving the roll forming mechanism to operate automatically. This enables continuous production and synchronous conveying of pet snacks. When the horizontal conveyor belt reaches its limit position, its top is covered with material. The telescopic mechanism moves in the opposite direction, causing the conveyor belt to retract. At this point, the one-way transmission mechanism interrupts the drive of the roll forming mechanism, stopping production. Meanwhile, the tensioning mechanism keeps the conveyor belt taut. The retraction of the conveyor belt relative to the movement of the movable roller, combined with the scraper, scrapes the material from the top of the horizontal conveyor belt and spreads it evenly on the top of the mesh plate until the conveyor belt returns to its original position. The entire process is achieved through mechanical linkage, requiring no additional control, making operation simple and highly automated. Attached Figure Description

[0026] Figure 1 This is a front view schematic diagram of the present invention; Figure 2 This is a schematic diagram of the back of the present invention; Figure 3 This is a schematic diagram of the internal structure of the drying oven and forming box of the present invention; Figure 4 This is a schematic diagram of the internal cross-section of the molding box of the present invention; Figure 5 This is a schematic diagram of the internal structure of the molding box of the present invention; Figure 6 This is a schematic diagram of the conveying structure of the present invention; Figure 7 This is a schematic diagram of the telescopic mechanism of the present invention; Figure 8 This is an exploded view of the unidirectional transmission structure of the present invention; Figure 9 This is a schematic diagram of the engagement state between the drive pulley and the ratchet of the present invention.

[0027] In the diagram: 1. Frame; 2. Drying box; 3. Heater; 4. Collection box; 5. Vertical conveyor belt; 6. Horizontal support plate; 7. Mesh plate; 8. Forming box; 9. Hopper; 10. Roll forming mechanism; 1001. Pressure roller; 1002. Die roller; 1003. Stirring shaft; 11. Powered roller; 12. Movable roller; 13. Horizontal conveyor belt; 14. Tensioning mechanism; 1401. Vertical groove; 1402. Slider; 1403. Compression spring; 1404. Slide rod; 1405. Compression roller; 1406. Guide roller; 15. Telescopic mechanism; 1501. Front end plate; 1502. Rear end plate; 1503. Guide rod; 1504. U-shaped frame; 1505. Scraper; 1506. Screw; 1507. Worm gear; 1508. Worm; 1509. Drive motor; 16. One-way transmission mechanism; 1601. Ratchet; 1602. Drive pulley; 1603. Mounting groove; 1604. Ratchet tooth; 1605. Return spring; 1606. First driven pulley; 1607. First toothed belt; 1608. Second driven pulley; 1609. Third driven pulley; 1610. Second toothed belt; 1611. Fourth driven pulley; 1612. Fifth driven pulley; 1613. Third toothed belt; 1614. Transmission gear. Detailed Implementation

[0028] To enable those skilled in the art to more clearly understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0029] Example 1: As Figures 1-9 As shown, this embodiment provides an integrated processing device for anti-sticking pet snacks forming and drying, including a frame 1, a drying box 2 vertically mounted on the top of the frame 1, a vertical conveyor belt 5 inside the drying box 2, a plurality of mesh plates 7 hinged to the surface of the vertical conveyor belt 5, and a horizontal support plate 6 fixed to the outside of the vertical conveyor belt 5. The horizontal support plate 6 is attached to the bottom of the mesh plate 7 in the downward section and is used to support the mesh plate 7 and keep it horizontal. A forming box 8 is provided on the top side of the drying box 2. A roller forming mechanism 10 is provided inside the forming box 8. A horizontal conveyor belt 13 is provided below the roller forming mechanism 10. A power roller 11 and a movable roller 12 are respectively provided at both ends of the horizontal conveyor belt 13. The forming box 8 is equipped with a telescopic mechanism 15. The output end of the telescopic mechanism 15 is connected to the movable roller 12, which is used to drive the movable roller 12 to move horizontally back and forth, so as to drive the horizontal conveyor belt 13 to extend into the drying box 2 or retract into the forming box 8. A tensioning mechanism 14 is provided below the horizontal conveyor belt 13 to maintain the belt tension during the extension and retraction of the horizontal conveyor belt 13; The side wall of the forming box 8 is provided with a one-way transmission mechanism 16. The input end of the one-way transmission mechanism 16 is linked with the telescopic mechanism 15, and the output end is connected to the roll forming mechanism 10 and the power roller 11. When the horizontal conveyor belt 13 extends, the one-way transmission mechanism 16 transmits power to drive the roll forming mechanism 10 to discharge material and drive the horizontal conveyor belt 13 to rotate. When the horizontal conveyor belt 13 retracts, the one-way transmission mechanism 16 interrupts the power transmission, the roll forming mechanism 10 stops discharging material, and the horizontal conveyor belt 13, along with the movable roller 12, retracts and lays the material on the belt surface onto the lower mesh plate 7.

[0030] During operation, the material is processed and shaped by the roller forming mechanism 10 inside the forming box 8 and then falls onto the surface of the horizontal conveyor belt 13. The telescopic mechanism 15 drives the movable roller 12 to move horizontally to one side of the drying box 2, causing the horizontal conveyor belt 13 to extend into the drying box 2. During this process, the one-way transmission mechanism 16 transmits power synchronously, driving the roller forming mechanism 10 to continuously discharge material on one hand, and driving the power roller 11 to rotate so that the horizontal conveyor belt 13 rotates synchronously, evenly conveying and spreading the shaped pet snack blanks on the surface of the horizontal conveyor belt 13. When the horizontal conveyor belt 13 extends to its limit position, the telescopic mechanism 15 drives the movable roller 12 to retract in the opposite direction, causing the horizontal conveyor belt 13 to retract into the forming box 8. During this process, the one-way transmission mechanism 16 interrupts power transmission, the roller forming mechanism 10 stops discharging material, and the power roller 11 no longer rotates to convey material. The horizontal conveyor belt 13 retracts synchronously with the movable roller 12. Under the pulling force of the tensioning mechanism 14, the horizontal conveyor belt 13 is controlled to move horizontally. When the conveyor belt 13 retracts, it pulls down, and the vertical displacement is compensated by the downward movement of the belt body. As a result, the belt surface moves relative to the scraper 1505, and the material carried on the belt surface is smoothly unloaded onto the horizontal screen plate 7 below. The screen plate 7 carrying the material is conveyed downward at a uniform speed along the interior of the drying chamber 2 with the vertical conveyor belt 5, and the drying is completed in a high-temperature environment. When the screen plate 7 moves to the bottom turning point with the vertical conveyor belt 5, the screen plate 7 flips downward around the hinge, and the dried finished material automatically falls off the surface of the screen plate 7 under the action of gravity, completing the unloading. The horizontal support plate 6 fits against the inner side of the downward section of the vertical conveyor belt 5, forming a stable support for the screen plate 7 during the downward process, ensuring that the screen plate 7 always remains horizontal during the drying and conveying process, and preventing material spillage. The tensioning mechanism 14 continuously presses against the belt body throughout the entire process of the horizontal conveyor belt 13's extension and retraction, compensating for changes in belt length in real time, maintaining the tension of the horizontal conveyor belt 13, and ensuring stable and reliable conveying operation.

[0031] Example 2: The solution in Example 1 will be further described below with reference to its specific working method. See the description below for details: In this embodiment, a heater 3 is provided on the side wall of the drying chamber 2. After the heater 3 is powered on, it continuously radiates heat into the interior of the drying chamber 2, so as to maintain a stable high-temperature drying environment inside the drying chamber 2 and heat and dry the pet snacks conveyed downward with the mesh plate 7 from all directions. A collection box 4 is provided at the bottom of the frame 1. The collection box 4 is located directly below the bottom discharge port of the drying chamber 2. When the mesh plate 7 runs with the vertical conveyor belt 5 to the bottom reversal position, the mesh plate 7 loses the support of the horizontal support plate 6 and flips downward around the hinge axis. The pet snacks that have been dried on the surface of the mesh plate 7 automatically fall off under the action of gravity and fall directly into the collection box 4 below to complete the collection of finished products. There is no need to manually set up a scraping structure, which effectively avoids the material from sticking to the surface of the mesh plate 7 and reduces the heat loss from the bottom discharge port.

[0032] In this embodiment, a hopper 9 is provided on the top of the molding box 8, and the roll forming mechanism 10 includes a pressure roller 1001, a mold roller 1002 and a stirring shaft 1003; The pressure roller 1001 and the mold roller 1002 are parallel and tangentially mounted below the discharge of the hopper 9. The stirring shaft 1003 is rotatably mounted at the discharge port of the hopper 9 to guide the material discharge.

[0033] The raw materials to be processed are fed from the top of the hopper 9. The stirring shaft 1003 rotates continuously to guide and disperse the materials at the outlet of the hopper 9, so as to avoid the materials from clumping and blocking the discharge channel, and to ensure that the material is fed evenly and smoothly. When the material falls to the tangential position between the pressure roller 1001 and the mold roller 1002, the pressure roller 1001 and the mold roller 1002 rotate in opposite directions and press the material, so that the material fills into the forming cavity on the surface of the mold roller 1002 and is squeezed to form a pet snack blank of a set shape. The blank after the forming process is completed is discharged from below the two rollers and falls precisely onto the surface of the horizontal conveyor belt 13 below.

[0034] In this embodiment, the telescopic mechanism 15 includes a front end plate 1501, a rear end plate 1502, a guide rod 1503, a U-shaped frame 1504, a scraper 1505, a screw 1506, a worm gear 1507, a worm 1508, and a drive motor 1509. The front end plate 1501 and the rear end plate 1502 are fixedly positioned inside the forming box 8 at a distance from each other, providing stable installation support and stroke limit for the guide rod 1503 and the screw 1506; the guide rod 1503 is horizontally fixed between the front end plate 1501 and the rear end plate 1502, and the U-shaped frame 1504 is slidably sleeved on the outside of the guide rod 1503. The guide rod 1503 provides linear guide support for the movement of the U-shaped frame 1504, ensuring smooth movement without deviation; the movable roller 12 is rotatably installed on the end of the U-shaped frame 1504 facing the drying box 2; The screw 1506 is horizontally rotatably mounted between the front end plate 1501 and the rear end plate 1502, and the screw 1506 and the U-shaped frame 1504 form a threaded transmission engagement. The worm gear 1507 is coaxially fixed to the end of the screw 1506. The worm 1508 is rotatably mounted on the side wall of the molding box 8 and meshes with the worm gear 1507. The drive motor 1509 is fixed to the outer side wall of the molding box 8. The output shaft of the drive motor 1509 is coaxially fixedly connected to the worm 1508. After the drive motor 1509 starts, it drives the worm gear 1508 to rotate synchronously. The worm gear 1508 drives the worm wheel 1507 to rotate at a reduced speed through meshing transmission, which in turn drives the screw 1506 to rotate smoothly around its own axis. When the screw 1506 rotates, it drives the U-shaped frame 1504 to slide horizontally along the guide rod 1503 through thread transmission. When the U-shaped frame 1504 moves to one side of the drying box 2, it drives the movable roller 12 mounted at the end to extend synchronously, realizing the extension and spreading action of the horizontal conveyor belt 13. When the U-shaped frame 1504 moves away from the drying box 2, it drives the movable roller 12 to retract synchronously, realizing the retraction and unloading action of the horizontal conveyor belt 13. The scraper 1505 is fixed between the ends of the U-shaped frame 1504 and moves synchronously with the U-shaped frame 1504. The scraping edge of the scraper 1505 is attached to the surface of the horizontal conveyor belt 13. During the retraction of the horizontal conveyor belt 13, the scraping edge of the scraper 1505 is attached to the upper surface of the horizontal conveyor belt 13, and the material carried on the belt surface is smoothly scraped down to the mesh plate 7 below, so as to realize the flat unloading of the material.

[0035] In this embodiment, the tensioning mechanism 14 includes a vertical groove 1401, a slider 1402, a compression spring 1403, a compression roller 1405, and a guide roller 1406; The vertical groove 1401 is vertically opened on the inner wall of the forming box 8, the slider 1402 is slidably installed inside the vertical groove 1401, and the compression spring 1403 is connected between the top of the slider 1402 and the inner top wall of the vertical groove 1401. The extrusion roller 1405 is rotatably mounted between two sets of sliders 1402 and presses against the inner surface of the horizontal conveyor belt 13; The compression spring 1403 is always in a compressed state, applying a continuous downward elastic force to the slider 1402, causing the slider 1402 to maintain a downward sliding tendency along the vertical groove 1401, thereby driving the compression roller 1405 to continuously press down against the inner surface of the horizontal conveyor belt 13. The guide roller 1406 is rotatably mounted on the inner wall of the forming box 8, and the guide roller 1406 is in contact with the outer surface of the horizontal conveyor belt 13, and cooperates with the extrusion roller 1405 to tension the belt body.

[0036] When the horizontal conveyor belt 13 extends outward with the movable roller 12, the total effective length of the belt increases. The belt pushes the slider 1402 to slide upward along the vertical groove 1401 to compress the compression spring 1403, preventing the belt from loosening and falling off. When the horizontal conveyor belt 13 retracts inward with the movable roller 12, the total effective length of the belt shortens. The compression spring 1403 pushes the slider 1402 to slide downward along the vertical groove 1401, causing the compression roller 1405 to move downward to compensate and maintain belt tension.

[0037] In this embodiment, the one-way transmission mechanism 16 includes a ratchet 1601, a driving pulley 1602, a ratchet tooth 1604, a return spring 1605, a first driven pulley 1606, a first toothed belt 1607, a second driven pulley 1608, a third driven pulley 1609, a second toothed belt 1610, a fourth driven pulley 1611, a fifth driven pulley 1612, a third toothed belt 1613, and a transmission gear 1614. The ratchet 1601 is coaxially fixed to the outer end of the worm 1508 extending from the molding box 8. The drive pulley 1602 is rotatably mounted on the side of the molding box 8, and the worm 1508 passes through the center of the drive pulley 1602 coaxially. The end face of the drive pulley 1602 away from the molding box 8 is provided with a mounting groove 1603. The ratchet 1604 is hinged to the inside of the mounting groove 1603. The return spring 1605 is connected between the ratchet 1604 and the inner wall of the mounting groove 1603. The ratchet 1604 engages with the outer ring teeth of the ratchet 1601 to form a one-way ratchet pawl transmission pair. The first driven pulley 1606 is coaxially and fixedly connected to the power roller 11, and the first toothed belt 1607 is tensioned and sleeved on the outside of the driving pulley 1602 and the first driven pulley 1606; The second driven pulley 1608 is coaxially fixedly installed on the side of the first driven pulley 1606, and the third driven pulley 1609 is coaxially fixed to the end of the pressure roller 1001. The second toothed belt 1610 is tensioned and sleeved on the outside of the second driven pulley 1608 and the third driven pulley 1609. The fourth driven pulley 1611 is coaxially fixed to the side of the third driven pulley 1609, and the fifth driven pulley 1612 is coaxially fixed to the end of the stirring shaft 1003. The third toothed belt 1613 is tensioned and sleeved on the outside of the fourth driven pulley 1611 and the fifth driven pulley 1612. Both the pressure roller 1001 and the mold roller 1002 are coaxially fixedly mounted with transmission gears 1614 at their ends, and the two sets of transmission gears 1614 mesh with each other for transmission.

[0038] When the worm gear 1508 rotates forward and drives the horizontal conveyor belt 13 to extend outward, the teeth of the ratchet 1601 engage with the ratchet 1604. The ratchet 1601 drives the drive pulley 1602 to rotate synchronously through the ratchet 1604. The drive pulley 1602 drives the first driven pulley 1606 to rotate through the first toothed belt 1607, thereby driving the power roller 11 to rotate, so that the horizontal conveyor belt 13 runs and conveys materials. At the same time, the first driven pulley 1606 drives the coaxial... The fixed second driven pulley 1608 rotates synchronously, and the second driven pulley 1608 drives the third driven pulley 1609 to rotate through the second toothed belt 1610, thereby driving the pressure roller 1001 to rotate; the transmission gear 1614 at the end of the pressure roller 1001 meshes with the transmission gear 1614 at the end of the mold roller 1002, driving the mold roller 1002 to rotate synchronously in the opposite direction, realizing the roll forming operation; the third driven pulley 1609 drives the coaxially fixed fourth driven pulley 1609 to rotate synchronously. 611 rotates synchronously, and the fourth driven pulley 1611 drives the fifth driven pulley 1612 to rotate through the third toothed belt 1613, thereby driving the stirring shaft 1003 to rotate and guide the material; when the worm gear 1508 rotates in the opposite direction and drives the horizontal conveyor belt 13 to retract inward, the ratchet 1601 rotates synchronously in the opposite direction, and the back of the teeth of the ratchet 1601 pushes the ratchet 1604, causing the ratchet 1604 to swing around the hinge point into the mounting groove 1603, and the return spring 1605 is compressed. When the ratchet 1604 and ratchet 1601 are disengaged, the ratchet 1601 spins freely relative to the drive pulley 1602, and power cannot be transmitted to the drive pulley 1602. The roll forming mechanism 10 and the power roller 11 both stop operating, and only the horizontal conveyor belt 13 retracts synchronously with the movable roller 12 to complete the unloading. The return spring 1605 is used to push the ratchet 1604 to automatically reset when it is not pushed by the teeth, so as to ensure stable engagement transmission during forward rotation.

[0039] In this embodiment, the material-bearing surface of the mesh plate 7 is provided with several breathable mesh holes, which allow hot air in the drying chamber 2 to penetrate the mesh plate and heat the bottom of the material, thereby improving the drying uniformity and drying efficiency. One side of the mesh plate 7 is hinged to the surface of the vertical conveyor belt 5 through a hinge seat, allowing the mesh plate 7 to swing freely around the hinge axis. The supporting surface of the horizontal support plate 6 is a smooth plane. When the mesh plate 7 moves downward with the vertical conveyor belt 5, its bottom surface is in contact with the top surface of the horizontal support plate 6 to maintain a horizontal state.

[0040] When the mesh plate 7 moves to the downward section with the vertical conveyor belt 5, the bottom surface of the mesh plate 7 rests on the smooth support surface of the horizontal support plate 6. The horizontal support plate 6 supports and limits the mesh plate 7, preventing it from swinging downward and keeping it in a horizontal state to stably carry the material downward. When the mesh plate 7 moves to the reversing point at the bottom of the vertical conveyor belt 5, the mesh plate 7 gradually detaches from the support of the horizontal support plate 6 and flips downward around the hinge axis under its own weight and the weight of the material, causing the material to fall off automatically.

[0041] In this embodiment, a conveyor motor is fixed to the outer wall of the drying box 2. The conveyor motor is coaxially connected to the upper drive roller of the vertical conveyor belt 5 to drive the vertical conveyor belt 5 to operate at a uniform speed intermittently. The step distance of the vertical conveyor belt 5 is matched with the arrangement spacing of the mesh plate 7.

[0042] The vertical conveyor belt 5 adopts a uniform speed intermittent operation mode. The step distance of each run is matched with the arrangement spacing of the mesh plate 7. After the horizontal conveyor belt 13 completes one material laying and unloading action, the vertical conveyor belt 5 steps down one mesh plate spacing, moves the empty mesh plate 7 to the material laying station, and at the same time sends the mesh plate 7 carrying the material down into the drying area to realize continuous drying processing and ensure precise matching of the cycle of material laying and drying processes.

[0043] In this embodiment, the scraping edge of the scraper 1505 is made of polyurethane, which has good elasticity and wear resistance. It can closely fit the surface of the horizontal conveyor belt 13 to ensure that the scraping is thorough and there is no material residue, and it will not scratch or wear the surface of the horizontal conveyor belt 13, thus extending the service life of the equipment. The scraper 1505 is inclined towards the side of the drying box 2, and the angle between the scraping edge and the upper surface of the horizontal conveyor belt 13 is 30°-60°. During the retraction of the horizontal conveyor belt 13, the inclined scraping edge can form a gentle guiding thrust on the material on the belt surface, so that the material falls evenly and steadily onto the surface of the lower mesh plate 7, avoiding material splashing or piling, and ensuring that the thickness of the material is uniform.

[0044] In this embodiment, a slide rod 1404 is fixed between the upper and lower ends of the vertical groove 1401, and the slide rod 1404 passes through the center of the compression spring 1403 and is slidably connected to the slider 1402.

[0045] The slide bar 1404 provides precise linear guidance for the up and down sliding of the slider 1402, preventing the slider 1402 from shifting or getting stuck in the vertical groove 1401, ensuring that the lifting and lowering process of the extrusion roller 1405 is smooth and stable. At the same time, it can radially limit the extension and contraction deformation of the extrusion spring 1403, preventing the extrusion spring 1403 from bending and losing its elasticity when compressed, and ensuring that the tensioning force of the tensioning mechanism 14 is stable and reliable.

[0046] The solutions in Embodiment 1 and Embodiment 2 will be further described below with reference to their specific working methods. After the equipment is started, the drive motor 1509 rotates in the forward direction, driving the screw 1506 to rotate through the worm gear 1508 and worm wheel 1507. This drives the U-shaped frame 1504 to extend the movable roller 12 into the drying chamber 2, and the horizontal conveyor belt 13 extends outward synchronously with the movable roller 12. During this process, the one-way transmission mechanism 16 is in the transmission state, synchronously driving the power roller 11, pressure roller 1001, mold roller 1002 and stirring shaft 1003 to rotate. The material in the hopper 9 falls down after being guided by the stirring shaft 1003, and after being rolled and shaped by the pressure roller 1001 and mold roller 1002, it falls onto the horizontal conveyor belt 13 and is synchronously conveyed into the drying chamber 2 with the horizontal conveyor belt 13.

[0047] When the horizontal conveyor belt 13 extends to its maximum stroke, the drive motor 1509 reverses, causing the U-shaped frame 1504 and the movable roller 12 to retract, and the horizontal conveyor belt 13 retracts synchronously. During this process, the one-way transmission mechanism 16 is in an idle state, the conveying power of the roll forming mechanism 10 and the horizontal conveyor belt 13 is interrupted, the power roller 11 has no active power, the belt surface of the horizontal conveyor belt 13 near the power roller 11 remains relatively stationary, while the other end of the horizontal conveyor belt 13 moves inward synchronously with the U-shaped frame 1504. Under the downward elastic force of the compression spring 1403 in the tensioning mechanism 14, the belt surface moves downward relative to the scraper 1505. The scraper 1505 evenly scrapes the formed material on the belt surface onto the mesh plate 7 below, completing a single material laying.

[0048] After the material is laid, the vertical conveyor belt 5 moves downward by one mesh plate spacing, sending the mesh plate 7 carrying the material into the drying area inside the drying chamber 2. At the same time, the next empty mesh plate 7 is moved to the material laying station to wait for the next material laying. The heater 3 continuously supplies heat to the drying chamber 2. As the mesh plate 7 carrying the material slowly moves downward along the descending section, the drying of the pet snacks is completed.

[0049] When the mesh plate 7 moves with the vertical conveyor belt 5 to the bottom reversing position, it loses the support of the horizontal support plate 6 and flips downwards. The dried finished snacks automatically fall off under gravity and are collected in the collection box 4 at the bottom. The empty mesh plate 7 moves upwards with the vertical conveyor belt 5 to the top and then flips back to its original position, entering the next cycle. The tensioning mechanism 14 compensates for changes in belt length in real time throughout the entire extension and retraction of the horizontal conveyor belt 13, maintaining belt tension and ensuring stable equipment operation.

[0050] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. An integrated processing device for forming and drying anti-sticking pet snacks, comprising a frame (1), characterized in that: A drying box (2) is vertically installed on the top of the frame (1). A vertical conveyor belt (5) is installed inside the drying box (2). Several mesh plates (7) are hinged on the surface of the vertical conveyor belt (5). A horizontal support plate (6) is fixed on the outside of the vertical conveyor belt (5). The horizontal support plate (6) is attached to the bottom of the mesh plate (7) in the downward section to support the mesh plate (7) and keep it horizontal. The drying box (2) has a forming box (8) on the top side. The forming box (8) has a roller forming mechanism (10) inside. The roller forming mechanism (10) has a horizontal conveyor belt (13) below it. The two ends of the horizontal conveyor belt (13) are respectively equipped with a power roller (11) and a movable roller (12). The forming box (8) is equipped with a telescopic mechanism (15). The output end of the telescopic mechanism (15) is connected to the movable roller (12) to drive the movable roller (12) to move horizontally back and forth, so as to drive the horizontal conveyor belt (13) to extend into the drying box (2) or retract into the forming box (8). A tensioning mechanism (14) is provided below the horizontal conveyor belt (13) to maintain the belt tension during the extension and retraction of the horizontal conveyor belt (13); The side wall of the forming box (8) is provided with a one-way transmission mechanism (16). The input end of the one-way transmission mechanism (16) is linked with the telescopic mechanism (15), and the output end is connected to the roll forming mechanism (10) and the power roller (11). When the horizontal conveyor belt (13) extends, the one-way transmission mechanism (16) transmits power to drive the roll forming mechanism (10) to discharge material and drive the horizontal conveyor belt (13) to run. When the horizontal conveyor belt (13) retracts, the one-way transmission mechanism (16) interrupts the power transmission, the roll forming mechanism (10) stops discharging the material, and the horizontal conveyor belt (13) retracts with the movable roller (12) and spreads the material on the belt surface onto the lower mesh plate (7).

2. The integrated processing device for anti-sticking pet snacks forming and drying according to claim 1, characterized in that: A heater (3) is provided on the side wall of the drying box (2), and a collection box (4) is provided at the bottom of the frame (1). The collection box (4) is located directly below the discharge port at the bottom of the drying box (2) and is used to receive the dried finished products that fall off the mesh plate (7) after it turns and flips with the vertical conveyor belt (5).

3. The integrated processing device for anti-sticking pet snacks forming and drying according to claim 1, characterized in that: The top of the molding box (8) is provided with a hopper (9), and the roll forming mechanism (10) includes a pressure roller (1001), a mold roller (1002) and a stirring shaft (1003). The pressure roller (1001) and the mold roller (1002) are parallel and tangentially mounted below the discharge of the hopper (9), and the stirring shaft (1003) is mounted rotatably at the discharge port of the hopper (9) to guide the material discharge.

4. The integrated processing device for anti-sticking pet snacks forming and drying according to claim 1, characterized in that: The telescopic mechanism (15) includes a front end plate (1501), a rear end plate (1502), a guide rod (1503), a U-shaped frame (1504), a scraper (1505), a screw (1506), a worm gear (1507), a worm (1508), and a drive motor (1509). The front end plate (1501) and the rear end plate (1502) are fixed at intervals inside the forming box (8), the guide rod (1503) is fixed horizontally between the front end plate (1501) and the rear end plate (1502), the U-shaped frame (1504) is slidably sleeved on the outside of the guide rod (1503), and the movable roller (12) is rotatably installed on the end of the U-shaped frame (1504) facing the drying box (2); The screw (1506) is horizontally rotatably mounted between the front end plate (1501) and the rear end plate (1502), and the screw (1506) and the U-shaped frame (1504) form a threaded transmission engagement; The worm gear (1507) is coaxially fixed to the end of the screw (1506), the worm (1508) is rotatably mounted on the side wall of the molding box (8) and meshes with the worm gear (1507), the drive motor (1509) is fixed to the outer side wall of the molding box (8), and the output shaft of the drive motor (1509) is coaxially fixedly connected to the worm (1508). The scraper (1505) is fixed between the ends of the U-shaped frame (1504), and the scraping edge of the scraper (1505) is attached to the surface of the horizontal conveyor belt (13) to scrape the material on the belt surface onto the lower mesh plate (7) when the horizontal conveyor belt (13) retracts.

5. The integrated processing device for anti-sticking pet snacks forming and drying according to claim 1, characterized in that: The tensioning mechanism (14) includes a vertical groove (1401), a slider (1402), a compression spring (1403), a compression roller (1405), and a guide roller (1406). The vertical groove (1401) is vertically opened on the inner wall of the forming box (8), the slider (1402) is slidably installed inside the vertical groove (1401), and the compression spring (1403) is connected between the top of the slider (1402) and the inner top wall of the vertical groove (1401). The extrusion roller (1405) is rotatably mounted between two sets of sliders (1402) and presses against the inner surface of the horizontal conveyor belt (13); The guide roller (1406) is rotatably mounted on the inner wall of the forming box (8), and the guide roller (1406) is attached to the outer side of the horizontal conveyor belt (13) to tension the belt body in conjunction with the extrusion roller (1405).

6. The integrated processing device for anti-sticking pet snacks forming and drying according to claim 3 or 4, characterized in that: The one-way transmission mechanism (16) includes a ratchet (1601), a driving pulley (1602), a ratchet tooth (1604), a return spring (1605), a first driven pulley (1606), a first toothed belt (1607), a second driven pulley (1608), a third driven pulley (1609), a second toothed belt (1610), a fourth driven pulley (1611), a fifth driven pulley (1612), a third toothed belt (1613), and a transmission gear (1614). The ratchet (1601) is coaxially fixed to the outer end of the worm (1508) extending out of the molding box (8). The drive pulley (1602) is rotatably mounted on the side of the molding box (8), and the worm (1508) passes through the center of the drive pulley (1602) coaxially. The end face of the drive pulley (1602) away from the molding box (8) is provided with a mounting groove (1603). The ratchet (1604) is hinged to the inside of the mounting groove (1603). The return spring (1605) is connected between the ratchet (1604) and the inner wall of the mounting groove (1603). The ratchet (1604) engages with the outer ring teeth of the ratchet wheel (1601) to form a one-way ratchet pawl transmission pair; The first driven pulley (1606) is coaxially and fixedly connected to the power roller (11), and the first toothed belt (1607) is tensioned and sleeved on the outside of the driving pulley (1602) and the first driven pulley (1606); The second driven pulley (1608) is coaxially fixedly installed on the side of the first driven pulley (1606), and the third driven pulley (1609) is coaxially fixed to the end of the pressure roller (1001). The second toothed belt (1610) is tensioned and sleeved on the outside of the second driven pulley (1608) and the third driven pulley (1609). The fourth driven pulley (1611) is coaxially fixed to the side of the third driven pulley (1609), and the fifth driven pulley (1612) is coaxially fixed to the end of the stirring shaft (1003). The third toothed belt (1613) is tensioned and sleeved on the outside of the fourth driven pulley (1611) and the fifth driven pulley (1612). Both the pressure roller (1001) and the mold roller (1002) are coaxially fixed with transmission gears (1614), and the two sets of transmission gears (1614) mesh with each other for transmission.

7. The integrated processing device for anti-sticking pet snacks forming and drying according to claim 1, characterized in that: The material-bearing surface of the mesh plate (7) is provided with several breathable mesh holes, and one side of the mesh plate (7) is hinged to the belt surface of the vertical conveyor belt (5) through a hinge seat; The support surface of the horizontal support plate (6) is a smooth plane. When the mesh plate (7) moves down with the vertical conveyor belt (5), its bottom surface is in contact with the top surface of the horizontal support plate (6) to maintain a horizontal state.

8. The integrated processing device for anti-sticking pet snacks forming and drying according to claim 1, characterized in that: A conveyor motor is fixed on the outer wall of the drying box (2). The conveyor motor is coaxially connected to the upper drive roller of the vertical conveyor belt (5) to drive the vertical conveyor belt (5) to run at a uniform speed intermittently. The step distance of the vertical conveyor belt (5) matches the arrangement spacing of the mesh plate (7).

9. The integrated processing device for anti-sticking pet snacks forming and drying according to claim 4, characterized in that: The scraping edge of the scraper (1505) is made of polyurethane. The scraper (1505) is tilted towards the side of the drying box (2). The angle between the scraping edge and the upper surface of the horizontal conveyor belt (13) is 30°-60°.

10. The integrated processing device for anti-sticking pet snacks forming and drying according to claim 5, characterized in that: A slide rod (1404) is fixed between the upper and lower ends of the vertical groove (1401), and the slide rod (1404) passes through the center of the compression spring (1403) and is slidably connected to the slider (1402).

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