A kind of drying device for konjak powder processing

Abstract

The present application belongs to the technical field of drying, and discloses a drying device for processing konjak powder, which comprises a base, a drying device arranged on the top of the base, a transmission assembly arranged on the top of the base and located in the drying device, and a conveying assembly arranged on the transmission assembly and used for conveying konjak slices through the inside of the drying device. During the movement of the mesh cylinder along with the transmission chain, the second transmission gear at the end of the mandrel alternately engages with the toothed plates arranged in the mounting frame, driving the mesh cylinder to rotate alternately in the positive and negative directions around the mandrel axis, and the konjak slices in the cylinder continuously tumble and change positions along with the mesh cylinder, so that each surface of the fresh slices is exposed to the hot air direction in turn, thereby changing the drying state of the existing mesh belt flat drying, i.e. the bottom surface continuously adheres to the mesh and the top surface is directly heated, and helping to alleviate the problem of uneven drying of the upper and lower surfaces of the konjak slices.

Description

Technical Field

[0001] This invention belongs to the field of drying technology, specifically a drying device for konjac flour processing. Background Technology

[0002] The processing of konjac chips typically involves slicing fresh konjac and then drying it to reduce the moisture content of the slices from 80%–85% to below 12%–13%, facilitating storage and subsequent processing. Because the glucomannan in konjac chips is prone to degradation above 65°C, the drying temperature must be controlled within the range of 40–60°C, resulting in a relatively long drying cycle.

[0003] Currently, the industrial drying of konjac slices mainly adopts mesh belt (mesh chain) hot air drying equipment. Fresh slices are laid flat on the conveyor mesh chain and move through the drying chamber with the mesh chain. Hot air passes through the mesh holes to heat and dry the fresh slices. During the drying process, the konjac slices are laid flat on the mesh chain, with their bottom surface in contact with the conveyor mesh chain. The hot air flow directly acts on the top surface of the fresh slices, while the bottom surface is blocked by the mesh chain fibers and the contact with the mesh chain, resulting in poor hot air penetration and heat exchange conditions. In addition, the fresh slices cannot be actively turned over during the conveying process, which leads to the top surface drying faster than the bottom surface, resulting in uneven drying of the upper and lower surfaces of the fresh slices.

[0004] Existing multi-layer mesh belt drying equipment typically relies on the drop difference between the upper and lower mesh belts to allow the material to fall freely, aiming to achieve a certain degree of tumbling and turning during the fall. However, this turning method is a passive and random tumbling, and the turning angle and landing point are uncontrollable. For fresh konjac slices, which are thin (2~5mm), soft, and have a sticky surface due to glucomannan precipitation, problems such as flat landing without turning, multiple slices sticking together and overlapping, and incomplete turning are prone to occur during the fall. It is difficult to ensure that each fresh slice is effectively turned, and some fresh slices still remain attached to the mesh, making it difficult to guarantee the uniformity of drying. Summary of the Invention

[0005] To address the problems mentioned in the background art, the present invention provides a drying device for konjac flour processing, which solves the problems of existing multi-layer mesh belt drying equipment that rely on the drop difference between layers to allow materials to fall freely and achieve random tumbling, but the turning is uncontrollable, fresh konjac slices are thin, soft and sticky, easy to fall flat without turning, sticking together and stacking, making it difficult to ensure effective turning and uneven drying.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a drying device for konjac flour processing, comprising a base, wherein a drying device is disposed on the top of the base, and further comprising: A transmission assembly is disposed on top of the base and located inside the drying equipment; A conveying assembly, which is disposed on the transmission assembly, is used to convey konjac slices through the interior of the drying equipment; The transmission assembly includes a support frame fixed to the top of the base. A transmission shaft is provided at both ends of the support frame in the length direction. A first transmission tooth is fixed at both ends of the transmission shaft. Two transmission chains are respectively wound around the first transmission teeth at both ends of the transmission shaft and mesh with them. A drive motor is installed at one end of the support frame, and the output end of the drive motor is connected to the transmission shaft. The conveying assembly includes multiple sets of spindles, each set including two coaxially opposite spindles. Each spindle is equidistantly rotatably connected to two transmission chains via connectors. A second conveying mesh frame is fixed between the two spindles in the same set. A first conveying mesh frame is hinged to one axial side of the second conveying mesh frame. The first and second conveying mesh frames can be opened and closed to form a mesh cylinder for holding konjac slices. The end of the spindle extending outward from the transmission chain is fixedly equipped with a second transmission gear. Mounting brackets are respectively installed at the top and bottom of the support frame. The mounting bracket is a groove structure with a C-shaped cross-section. The second transmission gear extends into the groove of the mounting bracket. The top and bottom of the inner wall of the upper mounting frame are fixed with toothed plates at equal intervals, and the toothed plates at the top and bottom of the inner wall of the mounting frame are arranged alternately.

[0007] Preferably, the length of the straight conveying section of the transmission chain is greater than the length of the drying equipment, so that both ends of the transmission chain extend outside the drying equipment to form a loading area and a discharging area.

[0008] Preferably, when the transmission chain moves, it drives the mandrel and the second transmission gear to move along the mounting frame. The second transmission gear alternately meshes with the toothed plates at the top and bottom, driving the mesh cylinder to rotate alternately in both directions around the axis of the mandrel.

[0009] Preferably, the transmission assembly and the conveying assembly are provided with guide components for controlling the opening and closing of the conveying assembly; The guiding component includes counterweights fixedly mounted on the outer edges of the closing openings of the first and second conveyor frames, respectively. The two ends of the counterweights on the first conveyor frame are respectively provided with extension rods extending outward along the spindle axis.

[0010] Preferably, a horizontal J-shaped first guide plate is fixed on the inner side of the mounting frame. The J-shaped curved section of the first guide plate is located at the feed end of the transmission chain, and its long arm extends into the lower mounting frame, while its short arm extends into the upper mounting frame.

[0011] Preferably, a guide plate is fixedly mounted on the side of the first guide plate, and the end of the guide plate located in the lower mounting bracket is inclined in the opening direction of the mesh cylinder; The extension rod extends into the mounting frame and moves along the first guide plate and the guide plate.

[0012] Preferably, the outer edges of the axial ends of the first and second conveyor frames are respectively provided with connecting parts, and an elastic tensioning member is connected between the two opposite connecting parts; The elastic tensioning element is a tension spring, which is in a stretched state when the mesh cylinder is closed, and elastically tensions the first conveyor mesh frame and the second conveyor mesh frame along the closing direction.

[0013] Preferably, the feeding end of the mounting frame is further provided with a second guide plate with the same structure as the first guide plate. The center of the J-shaped bending section of the second guide plate coincides with the center of the J-shaped bending section of the first guide plate, and a guide groove is formed between the two.

[0014] Preferably, a rectangular limiting member is fixed on the mandrel, the width of the guide groove is adapted to the thickness of the rectangular limiting member, the rectangular limiting member is located between the connecting member and the second transmission gear, and ball bearings are embedded at the top and bottom of the rectangular limiting member.

[0015] Preferably, when the mesh cylinder moves to the lower end of the transmission chain and approaches the feed end, after the mesh cylinder separates from the toothed plate, it rotates freely around the spindle to the lowest position of the center of gravity under the action of the gravity torque of the counterweight, so that the rectangular limiting member is in a horizontal state and enters the guide groove. The ball contacts the inner wall of the guide groove to reduce sliding friction. The rectangular limiting member slides along the guide groove through the J-shaped bend to the end of the short arm section and then disengages, thus restricting the rotation of the spindle during this process.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes a second transmission gear at the end of the spindle to alternately mesh with staggered toothed plates within the mounting frame as the mesh cylinder travels with the transmission chain. This drives the mesh cylinder to rotate alternately in both directions around the spindle axis, causing the konjac slices inside to continuously tumble and change position. This allows each surface of the fresh slices to be exposed to the hot air in turn, changing the existing drying state where the bottom surface is continuously attached to the mesh and the top surface is directly heated during flat-laid drying with a mesh belt. This helps to alleviate the problem of uneven drying of the upper and lower surfaces of the konjac slices.

[0017] This invention transforms the cyclical movement of the transmission chain into a tumbling motion of the first conveyor frame around the hinge axis by setting a counterweight and an extension rod at the closing opening of the conveyor frame, along with a horizontal J-shaped first guide plate and an inclined guide plate inside the mounting frame. This causes the mesh cylinder to automatically close at the feeding end and automatically open at the discharging end. The elastic tensioning member between the closing opening joints provides a pre-tightening force for closing. The entire opening and closing process does not require additional drive components or electrical control components, resulting in a simplified structure. Furthermore, the elastic tensioning member keeps the closing opening pressed during the tumbling process, which helps to reduce the situation where material is thrown out from the closing gap.

[0018] This invention features a rectangular limiting component on the mandrel. At the feed end, two J-shaped guide plates with coinciding centers form a guide groove. After the mesh cylinder returns and detaches from the toothed plate, it automatically straightens under the gravitational torque of the counterweight. The rectangular limiting component enters the guide groove horizontally and slides along the J-shaped trajectory to the short arm section before disengaging. During this process, the rotation of the mandrel is restricted, allowing the mesh cylinder to maintain a fixed posture when it completes a 180° rotation around the drive shaft. This helps to reduce the deflection of the mesh cylinder caused by inertial swaying when the chain turns, and allows the extension rod to be more accurately aligned with the J-shaped bending section. In conjunction with the ball bearings, the sliding friction is reduced, resulting in smoother opening and closing actions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention; Figure 2 This is a schematic diagram of the external structure of the transmission assembly, conveying assembly, and guiding assembly of the present invention; Figure 3 This is a schematic diagram of the mating structure of the transmission component and the conveying component of the present invention; Figure 4 This is a partial disassembly diagram of the conveying component of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the conveying component and the guiding component of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a schematic diagram of the cooperative structure of the conveying component and the guiding component of the present invention; Figure 8 This is a partial cross-sectional structural diagram of the conveying component and guiding component of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point B.

[0020] In the diagram: 1. Base; 2. Drying equipment; 3. Transmission assembly; 31. Transmission shaft; 32. First transmission gear; 33. Transmission chain; 34. Support frame; 4. Conveying assembly; 41. First conveying mesh frame; 42. Second conveying mesh frame; 43. Mandrel; 44. Connector; 45. Second transmission gear; 46. Mounting frame; 47. Tooth plate; 5. Guide assembly; 50. Elastic tensioning element; 51. First guide plate; 52. Guide slot; 53. Second guide plate; 54. Guide plate; 55. Counterweight; 56. Extension rod; 57. Rectangular limiting element; 58. Ball bearing; 59. Connecting element. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1 to 9 As shown, the present invention provides a drying device for konjac flour processing, including a base 1, a drying device 2 disposed on the top of the base 1, and further comprising: Transmission assembly 3 is located on the top of base 1 and inside drying equipment 2; Conveying component 4 is mounted on transmission component 3 and is used to convey konjac slices through the interior of drying equipment 2. The transmission assembly 3 includes a support frame 34 fixedly mounted on the top of the base 1. A transmission shaft 31 is provided at both ends of the support frame 34 in the length direction. A first transmission tooth 32 is fixedly mounted at both ends of the transmission shaft 31. Two transmission chains 33 are respectively wound around the first transmission teeth 32 at both ends of the transmission shaft 31 and mesh with them. A drive motor is installed at one end of the support frame 34, and the output end of the drive motor is connected to the transmission shaft 31. The conveying assembly 4 includes multiple sets of spindles 43, each set including two coaxially opposite spindles 43. Each spindle 43 is equidistantly rotatably connected to two transmission chains 33 via a connector 44. A second conveying frame 42 is fixed between the two spindles 43 in the same set. A first conveying frame 41 is hinged to one axial side of the second conveying frame 42. The first conveying frame 41 and the second conveying frame 42 can be opened and closed to form a mesh cylinder for holding konjac slices. The end of the spindle 43 extending out of the transmission chain 33 is fixedly equipped with a second transmission gear 45. The top and bottom of the support frame 34 are respectively equipped with mounting brackets 46. The mounting bracket 46 is a groove structure with a C-shaped cross-section. The second transmission gear 45 extends into the groove of the mounting bracket 46. Toothed plates 47 are fixedly mounted at equal intervals on the top and bottom of the inner wall of the upper mounting bracket 46, and the toothed plates 47 on the top and bottom of the inner wall of the mounting bracket 46 are arranged in an alternating manner.

[0023] The length of the straight conveying section of the transmission chain 33 is greater than the length of the drying equipment 2, so that both ends of the transmission chain 33 extend out of the drying equipment 2 to form a loading area and a discharging area.

[0024] When the transmission chain 33 moves, it drives the spindle 43 and the second transmission gear 45 to move along the mounting frame 46. The second transmission gear 45 alternately meshes with the toothed plates 47 at the top and bottom, driving the mesh cylinder to rotate alternately in the forward and reverse directions around the axis of the spindle 43.

[0025] The drive motor drives the transmission shaft 31 to rotate, and the transmission shaft 31 drives the first transmission teeth 32 at both ends of the shaft to rotate synchronously. The first transmission teeth 32 drive the two transmission chains 33 that are wound around and meshed with the shaft to circulate along the support frame 34. The transmission chains 33 drive the sets of spindles 43 that are equidistantly connected to the shaft and the second conveying mesh frame 42 that is fixed between the two coaxially opposite spindles 43 to move synchronously, so as to realize the continuous circulation conveying of the mesh cylinder inside and outside the drying equipment 2. The length of the straight conveying section of the transmission chain 33 is greater than that of the drying equipment 2, so that the loading area and the discharge area are located outside the drying equipment 2, avoiding loading and unloading operations in the high-temperature drying area. When the mesh cylinder travels with the transmission chain 33 to the loading area outside the drying equipment 2, the first conveyor mesh frame 41 flips open relative to the second conveyor mesh frame 42 around the hinge axis, and fresh konjac slices are injected into the mesh cylinder from the opening. The open state facilitates loading and reduces mechanical damage to the fresh slices. As the transmission chain 33 continues to move forward, the first conveyor frame 41 flips in the opposite direction and closes with the second conveyor frame 42 to form a closed mesh cylinder, preventing the konjac slices from being thrown out during the subsequent tumbling process. At the same time, the mesh holes in the cylinder wall ensure that hot air can enter the cylinder from all directions. After the mesh cylinder enters the drying zone of the drying equipment 2, the second transmission gear 45 at the outer end of the spindle 43 enters the C-shaped groove of the mounting frame 46. Since the toothed plates 47 fixed at equal intervals at the top and bottom of the inner wall of the mounting frame 46 are arranged in an alternating manner, the second transmission gear 45 first meshes with the top section of toothed plate 47 and rolls along it when it moves with the transmission chain 33, driving the mesh cylinder to rotate in the forward direction around the axis of the spindle 43. The konjac slices in the cylinder tumble and change position with the mesh cylinder in the forward direction, so that the surface of the fresh slices that were originally attached to the mesh wall detaches and turns towards the direction of hot air. After passing through this section of toothed plate, the second transmission gear 45 enters the interval section without toothed plate and slides by inertia. Then it meshes with the bottom section of toothed plate 47, driving the mesh cylinder to rotate in the reverse direction. The konjac slices in the cylinder tumble in the reverse direction with the mesh cylinder. The alternation of forward and reverse directions allows each surface of the fresh slices to be exposed to the hot air in turn, avoiding the uneven drying of the upper and lower surfaces caused by the continuous attachment of the same side to the mesh. At the same time, the repeated tumbling in different directions loosens and separates the fresh slices, preventing the sticking and stacking of slices caused by the stickiness of glucomannan. The mesh cylinder travels with the transmission chain 33 to the end of the drying zone and turns around the transmission shaft 31 to the downward section, and then continues to travel with the transmission chain 33. When the mesh cylinder reaches the discharge area outside the drying equipment 2, the first conveying mesh frame 41 flips outward around the hinge axis and opens. The dried konjac slices are discharged from the opening under the residual rotation of the mesh cylinder and its own weight, realizing automatic unloading without manual intervention. After unloading, the empty mesh cylinder continues to travel along the downward and return sections of the drive chain 33 and returns to the loading area, entering the next working cycle.

[0026] like Figures 5-8 As shown, the transmission assembly 3 and the conveying assembly 4 are provided with guide assemblies 5, which are used to control the opening and closing of the conveying assembly 4; The guide assembly 5 includes a counterweight 55 fixedly mounted on the outer side of the closing edge of the first conveyor frame 41 and the second conveyor frame 42 respectively. The two ends of the counterweight 55 on the first conveyor frame 41 are respectively provided with extension rods 56 extending outward along the spindle 43.

[0027] The inner side of the mounting bracket 46 is fixed with a horizontal J-shaped first guide plate 51. The J-shaped curved section of the first guide plate 51 is located at the feed end of the transmission chain 33, and its long arm section extends into the lower mounting bracket 46, while its short arm section extends into the upper mounting bracket 46.

[0028] A guide plate 54 is fixedly mounted on the side of the first guide plate 51, and the end of the guide plate 54 located in the lower mounting bracket 46 is inclined in the opening direction of the mesh cylinder. The extension rod 56 extends into the mounting bracket 46 and moves along the first guide plate 51 and the guide plate 54.

[0029] When the empty mesh cylinder after unloading travels along the lower return section of the transmission chain 33 towards the feed end, the extension rods 56 at both ends of the counterweight block 55 on the first conveyor mesh frame 41 slide along the long arm section of the first guide plate 51. The long arm section constrains the extension rods 56 in the open position, so that the first conveyor mesh frame 41 remains in an open state of outward rotation around the hinge axis with the second conveyor mesh frame 42, ensuring that the residual material in the cylinder is fully emptied during the return stroke, and at the same time preparing for the next cycle of loading. The counterweight block 55 on the second conveyor mesh frame 42 balances the center of gravity of the mesh cylinder in the open state, preventing the mesh cylinder from shaking due to eccentricity, and allowing the extension rods 56 to slide smoothly along the guide plate without jamming. When the mesh cylinder travels to the turning point at the feed end of the transmission chain 33, the extension rod 56 enters the J-shaped bending section of the first guide plate 51. The J-shaped bending section gradually guides the extension rod 56 from the open position corresponding to the long arm section to the closed position corresponding to the short arm section, driving the first conveying mesh frame 41 to rotate inward around the hinge axis. The automatic closing of the mesh cylinder is achieved by pure mechanical guidance without the need for additional drive components or electronic control components. In the transition zone of the rotation and closure, the mesh cylinder is in a partially open state. Fresh konjac slices are injected into the mesh cylinder from this opening. The open transition zone facilitates loading. Subsequently, the arc section automatically guides the closure, reducing mechanical damage to the fresh slices. After the mesh cylinder is completely closed, it enters the upper mounting frame 46. The extension rod 56 slides along the short arm section of the first guide plate 51. The short arm section constrains the extension rod 56 in the closed position, so that the first conveying mesh frame 41 and the second conveying mesh frame 42 remain closed during the entire drying process, preventing the konjac slices from being thrown out of the closed opening during the rotation and tumbling of the mesh cylinder. When the mesh cylinder moves out of the drying area with the transmission chain 33 and rotates around the far end transmission shaft 31 into the discharge section in the lower mounting frame 46, the extension rod 56 disengages from the short arm section and enters the guide plate 54 fixed on the side of the first guide plate 51. The end of the guide plate 54 located in the lower mounting frame 46 is inclined toward the opening direction of the mesh cylinder. The guide extension rod 56 gradually deviates from the closed position along the inclined surface, driving the first conveying mesh frame 41 to rotate outward around the hinge axis. The mesh cylinder is in an open state. The guide inclined surface converts the linear movement of the transmission chain into the rotation torque of the first mesh frame, realizing the automatic opening of the discharge area. The dried konjac slices are discharged from the opening under the residual rotation of the mesh cylinder and its own weight, automatically unloading without manual intervention. After unloading, the mesh cylinder continues to travel along the lower return section, and the extension rod 56 returns to the long arm section of the first guide plate 51 and remains open, entering the next opening and closing cycle.

[0030] like Figures 4-9 As shown, the outer edges of the axial ends of the first conveyor frame 41 and the second conveyor frame 42 are respectively provided with connecting parts 59, and an elastic tensioning part 50 is connected between the two opposite connecting parts 59. The elastic tensioning element 50 is a tension spring, which is in a stretched state when the mesh cylinder is closed, and elastically tensions the first conveyor mesh frame 41 and the second conveyor mesh frame 42 along the closing direction.

[0031] The feeding end of the mounting bracket 46 is also provided with a second guide plate 53, which has the same structure as the first guide plate 51. The center of the J-shaped bending section of the second guide plate 53 coincides with the center of the J-shaped bending section of the first guide plate 51, and a guide groove 52 is formed between them. The width of the guide groove 52 is adapted to the thickness of the rectangular limiting member 57.

[0032] A rectangular limiting member 57 is fixed on the spindle 43. The rectangular limiting member 57 is located between the connecting member 44 and the second transmission gear 45. Ball bearings 58 are embedded at the top and bottom of the rectangular limiting member 57.

[0033] When the mesh cylinder moves to the lower end of the transmission chain 33 and approaches the feed end, after the mesh cylinder disengages from the toothed plate 47, it rotates freely around the spindle 43 under the action of the gravity torque of the counterweight block 55 to the lowest position of the center of gravity, so that the rectangular limiting part 57 is in a horizontal state and enters the guide groove 52. The ball 58 contacts the inner wall of the guide groove 52 to reduce sliding friction. The rectangular limiting member 57 slides along the guide groove 52 through the J-shaped bend to the end of the short arm section and then disengages, restricting the rotation of the spindle 43 during this process.

[0034] When the mesh cylinder moves to the drying zone with the transmission chain 33, the elastic tensioning member 50 connecting the docking parts 59 on the outer edges of the axial ends of the first conveyor mesh frame 41 and the second conveyor mesh frame 42 is in a stretched state. The contraction force of the tension spring pulls the two docking parts 59 closer to each other along the closing direction, so that the first conveyor mesh frame 41 and the second conveyor mesh frame 42 remain elastically pressed during the entire drying and tumbling process, and a pre-tight seal is formed at the closing opening to prevent the konjac slices from being thrown out of the closing gap when the mesh cylinder rotates alternately in the forward and reverse directions. At the same time, the elastic connection allows the two mesh frames to make slight displacement when impacted by the material inside the cylinder, avoiding rigid collision damage. When the mesh cylinder moves out of the drying area and reaches the discharge end, the guide plate 54 drives the first conveying mesh frame 41 to rotate outward around the hinge axis through the extension rod 56. The rotation torque overcomes the tension of the elastic tension member 50, causing the two mesh frames to separate and open. The tension spring stores energy during the opening process, providing a restoring force for subsequent re-closing, and the dried konjac slices are discharged. After unloading, the empty mesh cylinder travels towards the feed end along the return section at the lower end of the transmission chain 33. At this time, the second transmission gear 45 has disengaged from the tooth plate 47, and the mesh cylinder loses its rotational driving force. Under the action of the gravitational torque of the counterweight block 55 on the outer side of the closing edge of the first conveyor mesh frame 41 and the second conveyor mesh frame 42, it rotates freely around the spindle 43 to the lowest position of the center of gravity, so that the mesh cylinder automatically straightens its posture during the return stroke, and prepares for alignment to enter the guide groove. The rectangular limiting piece 57, which is fixed on the spindle 43 and located between the connecting piece 44 and the second transmission gear 45, rotates with the spindle 43 to a horizontal state. When the mesh cylinder approaches the bend at the feed end, the horizontal rectangular limiting member 57 enters the guide groove 52 formed by the first guide plate 51 and the second guide plate 53. The width of the guide groove 52 is adapted to the thickness of the rectangular limiting member 57. The rolling balls 58 embedded at the top and bottom of the rectangular limiting member 57 contact the upper and lower inner walls of the groove, converting sliding friction into rolling friction. This significantly reduces the resistance of the rectangular limiting member as it slides along the arc-shaped groove, preventing jamming and wear. The rectangular limiting member 57 moves along the long arm section of the guide groove 52 through the J-shaped bend section towards the short arm section. As the arm slides, the J-shaped trajectory of the through groove is consistent with the turning path of the transmission chain at the feed end, so that the mandrel is constrained by the limiting component and cannot rotate on its own while turning with the chain. During this process, the guide through groove 52 restricts the rotation of the mandrel 43 through the rectangular limiting component 57, so that the mesh cylinder maintains a fixed posture during the 180° rotation around the transmission shaft 31, preventing the inertial swaying and centrifugal force when the chain turns from causing the mesh cylinder to deflect, ensuring that the extension rod 56 is precisely aligned with the J-shaped bending section of the first guide plate 51, and smoothly completing the flipping guidance from opening to closing; At the same time, the J-shaped bending section drives the first conveyor frame 41 to flip inward through the extension rod 56 and overcomes the tension of the elastic tension member 50 to close with the second conveyor frame 42. After the elastic tension member 50 is closed, it rebounds and contracts, releasing the elastic potential energy accumulated when the material is opened, and elastically tightens the two frames along the closing direction, so that they can remain closed without additional locking parts. When the rectangular limiting piece 57 slides along the guide groove 52 to the end of the short arm section, it disengages, the spindle 43 regains its rotational freedom, and the mesh cylinder then enters the drying section of the upper mounting frame 46. The second transmission gear 45 meshes with the toothed plate 47 to resume rotation and tumbling, entering the next drying cycle.

[0035] Working principle and usage process of this invention: The drive motor drives the transmission shaft 31 to rotate, and the transmission shaft 31 drives the first transmission teeth 32 at both ends of the shaft to rotate synchronously. The first transmission teeth 32 drive the two transmission chains 33 that are wound around and meshed with the shaft to circulate along the support frame 34. The transmission chains 33 drive the sets of spindles 43 that are equidistantly connected to the shaft and the second conveyor frame 42 that is fixed between the two coaxially opposite spindles 43 to move synchronously through the connector 44. The length of the straight conveying section of the transmission chain 33 is greater than that of the drying equipment 2, so that the loading area and the discharge area are located outside the drying equipment 2, avoiding loading and unloading in a high temperature and high humidity environment. When the empty mesh cylinder after unloading travels along the lower return section of the transmission chain 33 towards the feeding end, the extension rods 56 at both ends of the counterweight block 55 on the first conveyor mesh frame 41 slide along the long arm section of the first guide plate 51. The long arm section constrains the extension rods 56 in the open position, so that the first conveyor mesh frame 41 is kept in an open state of outward rotation around the hinge axis with the second conveyor mesh frame 42, ensuring that the residual material in the cylinder is fully emptied during the return stroke, and at the same time preparing for the next cycle of loading. The counterweight block 55 on the second conveyor mesh frame 42 balances the center of gravity of the mesh cylinder in the open state, avoids eccentric swaying, and makes the extension rod slide smoothly along the guide plate. At this time, the second transmission gear 45 has disengaged from the toothed plate 47, and the mesh cylinder loses its rotational driving force. Under the action of the gravitational torque of the counterweight block 55 on the outer side of the closing edge, it rotates freely around the spindle 43 to the lowest position of the center of gravity, so that the mesh cylinder automatically straightens its posture during the return stroke. The rectangular limiting piece 57, which is fixed on the spindle 43 and located between the connecting piece 44 and the second transmission gear 45, rotates with the spindle 43 to a horizontal state. When the mesh cylinder approaches the turning point at the feed end, the horizontal rectangular limiting member 57 enters the guide groove 52 formed by the first guide plate 51 and the second guide plate 53. The second guide plate 53 has the same structure as the first guide plate 51 and the center of the J-shaped bending section coincides. The width of the guide groove 52 is adapted to the thickness of the rectangular limiting member 57. The ball bearings 58 embedded at the top and bottom of the rectangular limiting member 57 contact the upper and lower inner walls of the groove. The rectangular limiting member 57 slides along the long arm section of the guide groove 52 through the J-shaped bending section to the short arm section. The J-shaped trajectory of the groove is consistent with the turning path of the transmission chain at the feed end. At the same time, the extension rod 56 enters the J-shaped bending section of the first guide plate 51. The J-shaped bending section guides the extension rod 56 from the open position corresponding to the long arm section to the closed position corresponding to the short arm section, driving the first conveying frame 41 to rotate inward around the hinge axis, overcoming the tension of the elastic tension member 50 between the two ends of the connecting parts 59 in the closing port axis and closing with the second conveying frame 42. In the transition zone of the rotation and closure, the mesh cylinder is in a partially open state. Fresh konjac slices are injected into the mesh cylinder from this opening. After closing, the elastic tension member 50 rebounds and contracts, releasing the elastic potential energy accumulated when the discharge is opened, and elastically tightening the two connecting parts 59 along the closing direction. When the rectangular limiting member 57 slides along the guide groove 52 to the end of the short arm section, it disengages, the spindle 43 regains its rotational freedom, and the mesh cylinder enters the drying zone of the drying equipment 2. The second transmission gear 45 at the outer end of the spindle 43 enters the C-shaped groove of the upper mounting bracket 46. Since the toothed plates 47 fixed at equal intervals at the top and bottom of the inner wall of the mounting bracket 46 are arranged in an alternating manner, the second transmission gear 45 first meshes with the top section of toothed plates 47 and rolls along them when it travels with the transmission chain 33, driving the mesh cylinder to rotate positively around the axis of the spindle 43. The second transmission gear 45 behind the toothed plate briefly slides into the interval section of the toothless plate, and then meshes with the bottom toothed plate 47, driving the mesh cylinder to rotate in the opposite direction. The alternating forward and reverse rotation allows each surface of the fresh slices to be exposed to the hot air in turn, avoiding uneven drying of the upper and lower surfaces caused by continuous meshing on the same side. At the same time, the repeated tumbling loosens and separates the fresh slices, reducing the stickiness of the slices caused by the glucomannan. During this process, the counterweight 55 on the outer edge of the closing opening rotates synchronously with the mesh cylinder, increasing the rotational inertia of the mesh cylinder and making the tumbling motion more stable. When the mesh cylinder travels out of the drying area and reaches the discharge end with the transmission chain 33, the second transmission gear 45 disengages from the last toothed plate 47, the mesh cylinder loses its rotational driving force, the extension rod 56 disengages from the short arm section of the first guide plate 51 and enters the guide plate 54 fixed to its side. The end of the guide plate 54 located in the lower mounting bracket 46 is inclined towards the opening direction of the mesh cylinder. The extension rod 56 gradually deviates from the closed position along the inclined surface, driving the first conveying mesh frame 41 to rotate outward around the hinge axis and overcome the tension of the elastic tension member 50. The mesh cylinder is in an open state, and the dried konjac slices are discharged from the opening under the residual rotation of the mesh cylinder and its own weight. After unloading, the empty mesh cylinder continues to travel along the lower return section with the transmission chain 33. The extension rod 56 returns to the long arm section of the first guide plate 51 and remains in an open state, returning to the feeding end to enter the next working cycle.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying device for konjac flour processing, comprising a base (1), wherein a drying device (2) is disposed on the top of the base (1), characterized in that, Also includes: The transmission assembly (3) is disposed on the top of the base (1) and located inside the drying device (2); A conveying assembly (4) is disposed on the transmission assembly (3) and is used to convey konjac slices through the interior of the drying equipment (2); The transmission assembly (3) includes a support frame (34) fixedly mounted on the top of the base (1). The support frame (34) has a transmission shaft (31) at both ends in the length direction. The transmission shaft (31) has a first transmission tooth (32) fixedly mounted at both ends. Two transmission chains (33) are respectively wound around the first transmission teeth (32) at both ends of the transmission shaft (31) and mesh with them. A drive motor is installed at one end of the support frame (34), and the output end of the drive motor is connected to the transmission shaft (31). The conveying assembly (4) includes multiple sets of spindles (43), each set including two coaxially opposite spindles (43), each spindle (43) is equidistantly rotatably connected to two transmission chains (33) through a connector (44), a second conveying frame (42) is fixed between the two spindles (43) in the same set, a first conveying frame (41) is hinged to one axial side of the second conveying frame (42), the first conveying frame (41) and the second conveying frame (42) can be opened and closed to form a mesh cylinder for holding konjac slices; The end of the spindle (43) extending outward from the transmission chain (33) is fixed with a second transmission gear (45). The top and bottom of the support frame (34) are respectively equipped with mounting brackets (46). The mounting bracket (46) is a groove structure with a C-shaped cross-section. The second transmission gear (45) extends into the groove of the mounting bracket (46). The top and bottom of the inner wall of the upper mounting bracket (46) are fixed with toothed plates (47) at equal intervals, and the toothed plates (47) at the top and bottom of the inner wall of the mounting bracket (46) are arranged in an alternating manner.

2. The drying device for konjac flour processing according to claim 1, characterized in that: The length of the straight conveying section of the transmission chain (33) is greater than the length of the drying equipment (2), so that both ends of the transmission chain (33) extend out of the drying equipment (2) to form a loading area and a discharging area.

3. The drying device for konjac flour processing according to claim 1, characterized in that: When the transmission chain (33) moves, it drives the spindle (43) and the second transmission gear (45) to move along the mounting frame (46). The second transmission gear (45) alternately meshes with the toothed plates (47) at the top and bottom, driving the mesh cylinder to rotate alternately in the forward and reverse directions around the axis of the spindle (43).

4. The drying device for konjac flour processing according to claim 1, characterized in that: The transmission assembly (3) and the conveying assembly (4) are provided with guide assemblies (5) for controlling the opening and closing of the conveying assembly (4); The guide assembly (5) includes a counterweight (55) fixedly mounted on the outer side of the closing edge of the first conveyor frame (41) and the second conveyor frame (42), respectively. The two ends of the counterweight (55) on the first conveyor frame (41) are respectively provided with extension rods (56) extending outward along the spindle (43).

5. The drying device for konjac flour processing according to claim 4, characterized in that: The mounting bracket (46) has a first guide plate (51) in a horizontal J shape fixed on its inner side. The J-shaped curved section of the first guide plate (51) is located at the feed end of the transmission chain (33). Its long arm extends into the lower mounting bracket (46), and its short arm extends into the upper mounting bracket (46).

6. The drying apparatus for konjac flour processing according to claim 5, characterized in that: A guide plate (54) is fixedly mounted on the side of the first guide plate (51), and the end of the guide plate (54) located in the lower mounting bracket (46) is inclined in the opening direction of the mesh cylinder; The extension rod (56) extends into the mounting bracket (46) and moves along the first guide plate (51) and the guide plate (54).

7. The drying apparatus for konjac flour processing according to claim 4, characterized in that: The first conveyor frame (41) and the second conveyor frame (42) are respectively provided with connecting parts (59) on the outer edges of the two ends of the axial direction of the closing opening, and elastic tensioning parts (50) are connected between the two opposite connecting parts (59). The elastic tensioning member (50) is a tension spring, which is in a stretched state when the mesh cylinder is closed, and elastically tensions the first conveyor mesh frame (41) and the second conveyor mesh frame (42) along the closing direction.

8. The drying apparatus for konjac flour processing according to claim 5, characterized in that: The feeding end of the mounting bracket (46) is also provided with a second guide plate (53) with the same structure as the first guide plate (51). The center of the J-shaped bending section of the second guide plate (53) coincides with the center of the J-shaped bending section of the first guide plate (51), and a guide groove (52) is formed between them.

9. The drying apparatus for konjac flour processing according to claim 8, characterized in that: A rectangular limiting member (57) is fixed on the spindle (43). The width of the guide groove (52) is adapted to the thickness of the rectangular limiting member (57). The rectangular limiting member (57) is located between the connector (44) and the second transmission gear (45). Ball bearings (58) are embedded at the top and bottom of the rectangular limiting member (57).

10. The drying apparatus for konjac flour processing according to claim 9, characterized in that: When the mesh cylinder moves to the lower end of the transmission chain (33) and approaches the feed end, after the mesh cylinder disengages from the toothed plate (47), it rotates freely around the spindle (43) under the gravitational torque of the counterweight (55) to the lowest position of the center of gravity, so that the rectangular limiting member (57) is in a horizontal state and enters the guide groove (52). The ball (58) contacts the inner wall of the guide groove (52) to reduce sliding friction. The rectangular limiting member (57) slides along the guide groove (52) through the J-shaped bend to the end of the short arm section and then disengages, restricting the rotation of the spindle (43) during this process.

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