A fruit and vegetable drying machine

Abstract

The application discloses a fruit and vegetable drying machine and relates to the technical field of fruit and vegetable drying. The fruit and vegetable drying machine comprises a device main body; the device main body comprises a drying chamber, a baffle connected to the inner wall of the drying chamber and a mesh basket placed on the baffle. The fruit and vegetable drying machine is characterized in that the driving mechanism drives the material box to move back and forth, and the hollow non-woven fabric pad is used to pull and wind the synchronous accompanying traveling box, so that the pad cloth smoothly slides on the mesh basket; when the pad cloth passes through the bottom trapezoidal protrusion and the gentle slope, the pad cloth forms undulation, and the fruit and vegetable are automatically turned over; meanwhile, the back-and-forth sliding of the pad cloth can reduce the adhesion phenomenon between the pad cloth and the mesh basket, and effectively reduces the risk of mesh hole blockage; the material cylinder in the material box, the non-woven fabric pad roll, the first rotating mechanism, the winding cylinder in the winding box, the second rotating mechanism and the pad cloth groove are matched, so that the feeding, winding and replacement of the pad cloth can be quickly completed, manual peeling and cleaning are not needed, and the efficiency and quality of the fruit and vegetable drying process are improved.

Description

Technical Field

[0001] This invention relates to the field of fruit and vegetable drying technology, specifically to a fruit and vegetable dryer. Background Technology

[0002] In the fruit and vegetable drying process, to solve problems such as leakage of soft fruits and vegetables, sticking to the mesh, juice seepage, and scorching of the skin by direct hot air, food-grade breathable filter paper or perforated non-woven fabric mats are often laid on the mesh basket rack. Although these mats can effectively prevent damage, adhesion, and contamination caused by direct contact between the material and the mesh surface, the conventional direct laying method has obvious drawbacks: the mat material easily adheres to the mesh surface with the juice and sticky components of the material, causing mesh blockage; replacing the adhered mat material requires manual peeling and cleaning, which is cumbersome and prone to secondary contamination, making it difficult to adapt to the needs of continuous production.

[0003] In actual production, to improve drying uniformity, fruits and vegetables usually need to be turned over during the drying process to break up localized hot and humid areas and prevent material caking and localized over-drying. However, existing drying solutions with padding materials mostly adopt a static laying mode, which cannot achieve dynamic linkage and turning of the padding material and the material. Relying solely on hot air convection disturbance is insufficient to achieve uniform turning of the material. This not only requires manual intervention for turning, which is inconvenient, but also leads to long drying cycles and large dispersion of moisture content. At the same time, existing solutions cannot simultaneously meet the requirements of two core working conditions: the reciprocating movement of the padding material to turn the material during the drying process, and the unidirectional opening and closing of the padding material when replacing consumables. It is difficult to balance drying efficiency with the consumable replacement needs of continuous production, which restricts the efficiency and quality of the fruit and vegetable drying process. Summary of the Invention

[0004] The purpose of this invention is to provide a fruit and vegetable dryer with a hollowed-out non-woven fabric pad that slides to automatically turn and replace fruits and vegetables online, so as to solve the problems mentioned in the background art of the inconvenience of pad replacement, inability to automatically turn fruits and vegetables, and easy blockage of the mesh basket by the pad material, which affects the drying efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fruit and vegetable dryer, comprising a main body; the main body includes a drying chamber, a baffle connected to the inner wall of the drying chamber, and a wire basket placed on the baffle; the wire basket is lined with a perforated non-woven fabric pad; the main body also includes a replacement mechanism disposed on both sides of the wire basket and a drive mechanism for driving the replacement mechanism to reciprocate.

[0006] The replacement mechanism includes a material box and a winding box located on both sides of the basket, and fabric pad grooves opened on the opposite side walls of the material box and the winding box; the material box is equipped with a feeding mechanism, and the winding box is equipped with a winding mechanism; the feeding mechanism includes a material cylinder rotatably disposed in the material box, a non-woven fabric pad roll sleeved on the material cylinder, and a first rotating mechanism for driving the material cylinder to rotate; the winding mechanism includes a winding drum rotatably disposed in the winding box and a second rotating mechanism for driving the winding drum to rotate.

[0007] The bottom of the basket is fixed with multiple trapezoidal protrusions, and the protrusions have gentle slopes on both sides. The driving mechanism is connected to the material box and is used to drive the material box to move back and forth along the length of the basket. One end of the hollow non-woven fabric pad is wound onto the material cylinder through the pad groove, and the other end is wound onto the take-up cylinder through the pad groove. When the material box moves, the tension of the hollow non-woven fabric pad pulls the take-up cylinder to move synchronously. The hollow non-woven fabric pad slides back and forth with the material box and the take-up cylinder. When it passes the protrusions, it is supported and forms waves, so as to drive the fruits and vegetables on the hollow non-woven fabric pad to turn automatically.

[0008] Preferably, the replacement mechanism further includes a first guide component for guiding and preventing deviation of the perforated nonwoven fabric pad; the first guide component includes two guide rollers disposed at the inner corner of the basket and a first rotating shaft connected between the guide rollers and the basket; the guide rollers slide in contact with the perforated nonwoven fabric pad to guide the perforated nonwoven fabric pad to slide smoothly and prevent deviation.

[0009] Preferably, the driving mechanism includes multiple connecting plates disposed within the drying chamber, a movable plate disposed outside the drying chamber, and a guide rod connecting the connecting plates and the movable plate; the guide rod passes through the drying chamber; the driving mechanism also includes a T-shaped block connected to the material box, the connecting plate having a T-shaped groove adapted to the T-shaped block, the T-shaped block being slidably embedded in the T-shaped groove; the driving mechanism also includes a first spring telescopic rod connecting the movable plate and the drying chamber and a pushing mechanism for moving the movable plate; the driving mechanism also includes a guiding mechanism connecting the material box and the wire basket and a constant force tensioning mechanism connecting the winding box and the wire basket.

[0010] Preferably, the pushing mechanism includes a pushing block connected to the moving plate, a cam cooperating with the pushing block, and a rotating assembly for driving the cam to rotate; the rotating assembly includes a motor, a support plate connected between the motor and the outer wall of the drying chamber, and a second rotating shaft connected between the cam and the motor; the cam abuts against the pushing block to drive the moving plate to reciprocate.

[0011] Preferably, the guiding mechanism includes two first T-shaped guide rods connected to the basket and a first connecting block connected between the first T-shaped guide rods and the material box; the first connecting block is sleeved on the first T-shaped guide rods and can slide along the guide rods to guide the material box to move back and forth smoothly.

[0012] Preferably, the constant force tensioning mechanism includes two second T-shaped guide rods connected to the net basket and a second connecting block connecting the second T-shaped guide rods and the winding box; the second connecting block is sleeved on the second T-shaped guide rods and can slide along the guide rods; the constant force tensioning mechanism also includes a working tube connected to the net basket, a piston slidably connected in the working tube, and a connecting rod connecting the piston and the second connecting block; the constant force tensioning mechanism also includes a liquid storage tank, a connecting pipe connecting the liquid storage tank and the working tube, and a gravity plate slidably connected in the liquid storage tank; the liquid storage tank is filled with hydraulic oil, and the winding box is driven to move adaptively by hydraulic pressure and gravity, so that the hollow non-woven fabric pad is subjected to a constant tension force.

[0013] Preferably, the first rotating mechanism includes a first rotating rod rotatably disposed on the side wall of the material box and a first disc connected to the first rotating rod; the material cylinder is sleeved on the first rotating rod; the first rotating mechanism further includes a first limiting component connected to the first rotating rod; the first limiting component includes a first nut threadedly connected to the first rotating rod and a second disc connected to the end of the first nut; the second disc is sleeved on the first rotating rod to axially limit the material cylinder.

[0014] Preferably, the second rotating mechanism includes a second rotating rod rotatably disposed within a winding box, a rocker wheel connected to the second rotating rod, and a third disc connected to the second rotating rod; the winding drum is sleeved on the second rotating rod; the second rotating mechanism further includes a second limiting assembly connected to the second rotating rod; the second limiting assembly includes a second nut threadedly connected to the second rotating rod and a fourth disc connected to the end of the second nut; the fourth disc is sleeved on the second rotating rod to axially limit the winding drum.

[0015] Preferably, the replacement mechanism further includes a limiting mechanism for locking the material cylinder and the take-up cylinder; the limiting mechanism includes two fixed rings respectively connected to the first rotating rod and the second rotating rod; the limiting mechanism also includes a plurality of limiting holes evenly distributed in a ring on the side wall of the fixed rings, a limiting rod that can be inserted into the limiting holes, and a lifting assembly for driving the limiting rod to move up and down; the lifting assembly includes a lifting block connected to the limiting rod, a fixed block connected to the material box and the take-up box, and a second spring telescopic rod connected between the lifting block and the fixed block; a telescopic sleeve is connected between the lifting blocks to achieve synchronous locking of the material cylinder and the take-up cylinder.

[0016] Preferably, the main body of the device further includes a second guide assembly disposed between the basket and the baffle; the second guide assembly includes a mounting groove formed on the top of the baffle and a plurality of guide wheels rotatably disposed in the mounting groove; the second guide assembly also includes two mounting plates connected to the basket and a guide groove formed on the bottom of the mounting plates; the guide wheels can roll in the guide groove, so that the basket can slide smoothly and be guided and limited.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This type of fruit and vegetable dryer, through the setting of a replacement mechanism and a drive mechanism, uses the drive mechanism to move the material box back and forth, and with the tension of the perforated non-woven fabric pad pulling the winding box to move synchronously, causing the pad to slide smoothly on the wire mesh basket. When the pad passes over the trapezoidal protrusions and gentle slopes at the bottom, it forms undulating waves, causing the fruits and vegetables to turn automatically, breaking up localized hot and humid areas, preventing material from caking, and achieving uniform drying without dead corners, significantly improving drying efficiency and quality. At the same time, the back-and-forth sliding of the pad reduces its adhesion to the wire mesh basket, effectively reducing the risk of mesh blockage and ensuring long-term stable operation of the equipment. Through the material cylinder, non-woven fabric pad roll, and first rotating mechanism in the material box, and the winding cylinder, second rotating mechanism, and pad groove in the winding box, the feeding, winding, and replacement of the pad can be completed quickly, without the need for manual peeling and cleaning, greatly reducing maintenance costs and downtime, and improving the efficiency and quality of the fruit and vegetable drying process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure from another perspective of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of the drying chamber in this invention;

[0022] Figure 4 This is a schematic diagram of the structure of the basket in this invention;

[0023] Figure 5 This is a schematic diagram of the net basket from another perspective in this invention;

[0024] Figure 6 This is a partial cross-sectional view of the basket structure in this invention;

[0025] Figure 7 This is a schematic diagram showing the positions of the driving mechanism and the second guide component in this invention;

[0026] Figure 8 This is a schematic diagram of the pushing mechanism in this invention;

[0027] Figure 9This is a schematic diagram of the structure of the second guide component in this invention;

[0028] Figure 10 This is a schematic diagram of the structure of the first guide component in this invention;

[0029] Figure 11 This is a schematic diagram of the limiting mechanism in this invention;

[0030] Figure 12 This is a partial cross-sectional view of the material box, winding box, and cover plate in this invention.

[0031] Figure 13 This is a schematic diagram of the constant force tensioning mechanism in this invention.

[0032] In the diagram: 101. Drying chamber; 102. Air inlet module; 103. Air outlet module; 104. Baffle; 105. Wire basket; 106. Hollowed-out non-woven fabric pad; 201. Connecting plate; 202. Moving plate; 203. Guide rod; 204. T-block; 205. First spring telescopic rod; 301. Pushing block; 302. Support plate; 303. Motor; 304. Cam; 305. Second rotating shaft; 401. First connecting block; 402. First T-shaped guide rod; 501. Second T-shaped guide rod; 502. Second connecting block; 503. Working pipe; 504. Piston; 505. Connecting rod; 506. Connecting pipe; 507. Liquid storage tank; 508. Gravity plate; 601. Mounting slot; 602. Guide wheel; 603. Installation... Plate; 604, Guide groove; 701, First rotating rod; 702, First disc; 703, First nut; 704, Second disc; 801, Second rotating rod; 802, Third disc; 803, Second nut; 804, Fourth disc; 805, Rocker wheel; 901, Fixing ring; 902, Limiting hole; 903, Fixing block; 904, Second spring telescopic rod; 905, Lifting block; 906, Limiting rod; 907, Telescopic sleeve rod; 1001, First rotating shaft; 1002, Guide roller; 1101, Material box; 1102, Rewinding box; 1103, Fabric pad groove; 1104, Cover plate; 1105, Material cylinder; 1106, Rewinding cylinder; 1107, Non-woven fabric pad roll; 12, Protrusion; 1201, Inclined surface. Detailed Implementation

[0033] 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.

[0034] Please see Figures 1-13This invention provides a fruit and vegetable dryer, including a main body; the main body includes a drying chamber 101, a baffle 104 connected to the inner wall of the drying chamber 101, and a wire basket 105 placed on the baffle 104; the wire basket 105 is lined with a perforated non-woven fabric pad 106; the main body also includes an air inlet module 102 and an air outlet module 103, which are well known in this technical field and will not be described in detail here; the main body also includes a replacement mechanism disposed on both sides of the wire basket 105 and a drive mechanism for reciprocating the replacement mechanism;

[0035] The replacement mechanism includes a material box 1101 and a winding box 1102 located on both sides of the basket 105. Both the material box 1101 and the winding box 1102 are detachably connected to a cover plate 1104. The cover plate 1104 is L-shaped and is detachably connected to the top and side wall of the material box 1101 and the winding box 1102. A fabric pad groove 1103 is opened on the opposite side wall of the material box 1101 and the winding box 1102. A sealing gasket is provided on the side wall of the fabric pad groove 1103 that cooperates with the hollow non-woven fabric pad 106. The sealing gasket is preferably made of high-temperature resistant silicone material and is arranged in a ring along the opening edge of the fabric pad groove 1103, forming a line contact or surface contact with the surface of the hollow non-woven fabric pad 106. The sealing gasket can maintain a flexible seal between the pad groove 1103 and the pad during the reciprocating sliding of the pad, preventing the hot and humid airflow in the drying chamber 101 from leaking out through the gap between the pad and the groove wall, and ensuring the overall sealing of the material box 1101 and the winding box 1102; the material box 1101 is equipped with a feeding mechanism, and the winding box 1102 is equipped with a winding mechanism; the feeding mechanism includes a material cylinder 1105 rotatably disposed in the material box 1101, a non-woven fabric pad roll 1107 sleeved on the material cylinder 1105, and a first rotating mechanism for driving the material cylinder 1105 to rotate; the winding mechanism includes a winding drum 1106 rotatably disposed in the winding box 1102, and a second rotating mechanism for driving the winding drum 1106 to rotate;

[0036] The bottom of the basket 105 is fixed with multiple trapezoidal protrusions 12, and the protrusions 12 have gentle slopes 1201 on both sides. The drive mechanism is connected to the material box 1101 and is used to drive the material box 1101 to move back and forth along the length of the basket 105. One end of the hollow non-woven fabric pad 106 is wound onto the material cylinder 1105 through the pad groove 1103, and the other end is wound onto the take-up cylinder 1106 through the pad groove 1103. When the material box 1101 moves, the tension of the hollow non-woven fabric pad 106 pulls the take-up cylinder 1102 to move synchronously. The hollow non-woven fabric pad 106 slides back and forth with the material box 1101 and the take-up cylinder 1102. When it passes the protrusions 12, it is supported and forms waves, which drives the fruits and vegetables on the hollow non-woven fabric pad 106 to turn automatically. The drive mechanism drives the material box 1101 to move back and forth, and the tension of the hollow non-woven fabric pad 106 helps to move the material box 1101 back and forth. The traction winding box 1102 moves synchronously, causing the padding cloth to slide smoothly on the wire mesh basket 105. As the padding cloth passes the bottom trapezoidal protrusion 12 and the gentle slope 1201, it forms undulating waves, causing the fruits and vegetables to turn automatically, breaking up localized hot and humid areas, preventing material caking, and achieving uniform drying without dead corners, significantly improving drying efficiency and quality. At the same time, the reciprocating sliding of the padding cloth can reduce its adhesion to the wire mesh basket 105, effectively reducing the risk of mesh blockage and ensuring long-term stable operation of the equipment. Through the material cylinder 1105, non-woven fabric pad roll 1107, and first rotating mechanism in the material box 1101, and the winding cylinder 1106 and second rotating mechanism in the winding box 1102, the padding cloth can be quickly fed, wound, and replaced without manual peeling and cleaning, greatly reducing maintenance costs and downtime, and improving the efficiency and quality of the fruit and vegetable drying process.

[0037] The replacement mechanism also includes a first guide assembly for guiding and preventing deviation of the perforated nonwoven fabric pad 106; the first guide assembly includes two guide rollers 1002 disposed at the inner corner of the basket 105 and a first rotating shaft 1001 connecting the guide rollers 1002 and the basket 105; the guide rollers 1002 slide in contact with the perforated nonwoven fabric pad 106 to guide the perforated nonwoven fabric pad 106 to slide smoothly and prevent deviation. During the reciprocating sliding process, the perforated nonwoven fabric pad 106 can smoothly transition and turn along the circumferential surface of the guide rollers 1002 to avoid jamming, wrinkling or deviation at the corner of the basket 105, while reducing the frictional resistance between the pad and the basket 105 and extending the service life of the pad. In addition, the corner where the basket 105 and the perforated nonwoven fabric pad 106 meet is also provided with rounded corners.

[0038] The driving mechanism includes multiple connecting plates 201 disposed within the drying chamber 101, a movable plate 202 disposed outside the drying chamber 101, and a guide rod 203 connecting the connecting plates 201 and the movable plate 202. The guide rod 203 penetrates the drying chamber 101 and provides linear guidance for the reciprocating movement of the movable plate 202, ensuring coaxiality and stability during transmission. The driving mechanism also includes a T-shaped block 204 connected to the material box 1101. The connecting plates 201 have T-shaped grooves adapted to the T-shaped block 204. The T-shaped block 204 is slidably embedded in the T-shaped groove. Through the sliding cooperation between the T-shaped block 204 and the T-shaped groove, the material box 1101 can slide smoothly and with low resistance within the drying chamber 101, while limiting its vertical displacement to prevent jamming. The driving mechanism also includes a first spring telescopic rod 205 connecting the movable plate 202 and the drying chamber 101, and a pushing mechanism for moving the movable plate 202. The drive moving plate 202 reciprocates along the guide rod 203, driving the connecting plate 201 and the T-block 204 to move synchronously, thereby driving the material box 1101 to move reciprocally. The first spring telescopic rod 205 is used to provide a reset force for the moving plate 202, realizing automatic reset of the reciprocating motion, and at the same time buffering the transmission impact. The drive mechanism also includes a guide mechanism connected between the material box 1101 and the wire basket 105 and a constant force tensioning mechanism connected between the winding box 1102 and the wire basket 105. The guide mechanism is used to limit the movement trajectory of the material box 1101, so that it always moves along the length direction of the wire basket 105 and avoids deviation. The constant force tensioning mechanism is used to provide constant tension for the hollow non-woven fabric pad 106, so that the pad remains taut during the reciprocating sliding process, ensuring that the winding box 1102 can move synchronously with the material box 1101, and preventing the pad from becoming loose, wrinkled or deviating, ensuring the stability of the pad's operation and the continuity of the drying process.

[0039] The pushing mechanism includes a pushing block 301 connected to the moving plate 202, a cam 304 that cooperates with the pushing block 301, and a rotating assembly that drives the cam 304 to rotate. The rotating assembly includes a motor 303, a support plate 302 connected between the motor 303 and the outer wall of the drying chamber 101, and a second rotating shaft 305 connected between the cam 304 and the motor 303. The cam 304 abuts against the pushing block 301. The motor 303 drives the cam 304 to rotate through the second rotating shaft 305. The periodic change of the profile of the cam 304 applies a thrust to the pushing block 301. Combined with the restoring force of the first spring telescopic rod 205, the moving plate 202 is driven to reciprocate along the guide rod 203, providing stable power for the sliding of the material box 1101.

[0040] The guiding mechanism includes two first T-shaped guide rods 402 connected to the basket 105 and a first connecting block 401 connected between the first T-shaped guide rods 402 and the material box 1101. The first connecting block 401 is sleeved on the first T-shaped guide rods 402 and can slide along the guide rods to guide the material box 1101 to move smoothly back and forth, limit its lateral deviation and vertical jump, prevent the material box 1101 from getting stuck or tilting during the movement, ensure the coaxiality of the transmission between the material box 1101 and the hollow non-woven fabric mat 106, and prevent the mat from running off track or wrinkling due to the deviation of the material box 1101.

[0041] The constant force tensioning mechanism includes two second T-shaped guide rods 501 connected to the basket 105 and a second connecting block 502 connecting the second T-shaped guide rods 501 and the winding box 1102. The second connecting block 502 is sleeved on the second T-shaped guide rods 501 and can slide along the guide rods, providing linear guidance for the movement of the winding box 1102 and ensuring that its movement direction is consistent with the movement direction of the material box 1101. The constant force tensioning mechanism also includes a working tube 503 connected to the basket 105, a piston 504 slidably connected in the working tube 503, and a connecting rod 505 connecting the piston 504 and the second connecting block 502. The constant force tensioning mechanism also includes a liquid storage tank 507 and a connecting pipe 505 connecting the liquid storage tank 507 and the working tube 503. 06 and a gravity plate 508 slidably connected within the liquid storage tank 507; the liquid storage tank 507 is filled with hydraulic oil, and the gravity plate 508 applies a constant pressure to the hydraulic oil in the liquid storage tank 507 under its own gravity. The hydraulic oil is transmitted to the working pipe 503 through the connecting pipe 506, pushing the piston 504 and the connecting rod 505 to apply a stable pulling force to the second connecting block 502, causing the winding box 1102 to move adaptively, so that the hollow non-woven fabric pad 106 is always subjected to a constant tension force, ensuring that the pad remains taut during the reciprocating sliding process, avoiding slack, wrinkles or deviation, while ensuring that the winding box 1102 can move synchronously with the material box 1101. Automatic compensation and stable control of the pad tension can be achieved without additional control mechanisms.

[0042] The first rotating mechanism includes a first rotating rod 701 rotatably mounted on the side wall of the material box 1101 and a first disc 702 connected to the first rotating rod 701; the material cylinder 1105 is sleeved on the first rotating rod 701; during normal drying operation, the first rotating rod 701 is in a locked state, and the material cylinder 1105 does not rotate with the traction of the pad, so that the hollow non-woven fabric pad 106 forms a fixed friction resistance point on the material cylinder 1105; on the one hand, this resistance point, in conjunction with the constant force tensioning mechanism, provides stable tension for the pad, so that the pad remains taut during the reciprocating sliding process; on the other hand, when the material box 1101 moves with the drive mechanism, the locked material cylinder 1105 can directly pull the pad 106 to move synchronously, providing active traction power for the reciprocating sliding of the pad. The system enables the cyclical movement of the padding cloth and the uniform drying of fruits and vegetables. When replacing consumables, the locking state of the first rotating rod 701 can be released, allowing it to rotate freely, facilitating the quick winding of the old padding cloth and the installation of the new padding cloth. The first rotating mechanism also includes a first limiting component connected to the first rotating rod 701. The first limiting component includes a first nut 703 threadedly connected to the first rotating rod 701 and a second disc 704 connected to the end of the first nut 703. The second disc 704 is sleeved on the first rotating rod 701. By screwing the first nut 703, the second disc 704 is driven to move axially, thereby axially limiting the end of the material cylinder 1105 and preventing the material cylinder 1105 from axially shifting or loosening in the locked or rotating state, ensuring the stability of the padding cloth operation and replacement process.

[0043] The second rotating mechanism includes a second rotating rod 801 rotatably disposed within the winding box 1102, a rocker wheel 805 connected to the second rotating rod 801, and a third disc 802 connected to the second rotating rod 801; a winding drum 1106 is sleeved on the second rotating rod 801; the second rotating mechanism also includes a second limiting assembly connected to the second rotating rod 801; the second limiting assembly includes a second nut 803 threadedly connected to the second rotating rod 801 and a fourth disc 804 connected to the end of the second nut 803; the fourth disc 804 is sleeved on the second rotating rod 801 to axially limit the winding drum 1106. During normal drying operation, the second... With the rotating rod 801 locked, the take-up drum 1106 does not rotate with the traction of the pad, so that the hollow non-woven pad 106 forms a fixed friction resistance point on the take-up drum 1106. This resistance point works together with the material drum 1105 at the unwinding end, in conjunction with the constant force tensioning mechanism, to provide stable tension for the pad, so that the pad remains taut during the reciprocating sliding process, avoiding slackness, wrinkles or deviation. When replacing consumables, the locking state of the second rotating rod 801 can be released, and the second rotating rod 801 can be manually driven to rotate by the rocker wheel 805 to quickly complete the winding of the old pad and the pre-tensioning of the new pad, adapting to the consumable replacement needs of continuous production.

[0044] The replacement mechanism also includes a limiting mechanism for locking the material cylinder 1105 and the take-up cylinder 1106. The limiting mechanism includes two fixing rings 901 connected to the first rotating rod 701 and the second rotating rod 801 respectively. The limiting mechanism also includes a plurality of limiting holes 902 evenly distributed in a ring on the side wall of the fixing rings 901, a limiting rod 906 that can be inserted into the limiting holes 902, and a lifting assembly for driving the lifting action of the limiting rod 906. The lifting assembly includes a lifting block 905 connected to the limiting rod 906 and a lifting block 905 connected to the material box 1106. The basket 101 has a fixed block 903 on the winding box 1102 and a second spring telescopic rod 904 connecting the lifting block 905 and the fixed block 903. A telescopic sleeve 907 is connected between the lifting blocks 905. The telescopic sleeve 907 slides on the side wall of the basket 105 and ensures structural strength under the support of the basket 105. The telescopic sleeve 907 can freely extend and retract with the change of the distance between the material box 1101 and the winding box 1102, and can also rigidly connect the lifting blocks 905 on both sides to force the lifting action of the limit rods 906 at both ends to be synchronized. To prevent unilateral deviation and jamming, the material cylinder 1105 and the take-up drum 1106 are synchronously locked and unlocked. During normal drying, the second spring telescopic rod 904 is extended, pushing the lifting block 905 to insert the limiting rod 906 into the limiting hole 902 of the fixing ring 901, restricting the rotation of the fixing ring 901, the first rotating rod 701, and the second rotating rod 801. This keeps the material cylinder 1105 and the take-up drum 1106 synchronously locked and prevents them from rotating, thus providing a cushioning material for drying. A stable friction resistance point is provided, which, together with the constant force tensioning mechanism, achieves tensioning and traction of the pad cloth. When the consumable is replaced, the driving lifting block 905 overcomes the spring force to compress the second spring telescopic rod 904, which drives the limit rod 906 to be pulled out from the limit hole 902, releasing the lock on the rotating rod. At the same time, the telescopic sleeve rod 907 can move synchronously with the lifting block 905 to ensure that the lifting and lowering actions of the limit rods 906 on both sides are synchronized, realizing the synchronous unlocking of the two end cylinders. This allows for quick winding of the old pad cloth and installation of the new pad cloth by manually rotating the rocker wheel 805, improving the efficiency of consumable replacement.

[0045] The main body of the device also includes a second guide assembly disposed between the basket 105 and the baffle 104; the second guide assembly includes a mounting groove 601 opened on the top of the baffle 104 and a plurality of guide wheels 602 rotatably disposed in the mounting groove 601; the second guide assembly also includes two mounting plates 603 connected to the basket 105 and a guide groove 604 opened on the bottom of the mounting plate 603; the guide wheels 602 can roll in the guide groove 604, so that the basket 105 can slide smoothly and be guided and limited; through the rolling cooperation between the guide wheels 602 and the guide groove 604, both linear guidance is provided for the basket 105, and the sliding friction between the basket 105 and the baffle 104 is converted into rolling friction, which greatly reduces the resistance when the basket 105 slides, reduces wear and noise, and ensures that the T-block 204 can be inserted into the T-groove on the side wall of the connecting plate 201.

[0046] Working Principle: When using this fruit and vegetable dryer, first open the cover plate 1104, place the winding drum 1106 onto the side wall of the second rotating rod 801, and tighten the second nut 803. Axial positioning is achieved through the fourth disc 804 and the third disc 802. Then, place the non-woven fabric pad roll 1107 along with the material drum 1105 onto the side wall of the first rotating rod 701, and tighten the first nut 703. Axial positioning is achieved through the second disc 704 and the first disc 702. Subsequently, push the telescopic sleeve rod 907 upward, causing the lifting blocks 905 on both sides to lift synchronously, so that the limiting rod 906 exits from the limiting hole 902. At the same time, compress the second spring telescopic rod 904, releasing the lock on the first rotating rod 701 and the second rotating rod 801.

[0047] Next, the perforated nonwoven fabric pad 106 on the nonwoven fabric pad roll 1107 is pulled out through the pad groove 1103, passed through the take-up box 1102, and laid on the bottom of the net basket 105, with the other end attached to the take-up drum 1106. After laying, the telescopic sleeve 907 is released, and the limiting rod 906 is reinserted into the limiting hole 902 under the action of the second spring telescopic rod 904, realizing the synchronous locking of the first rotating rod 701 and the second rotating rod 801. The fruits and vegetables to be dried are evenly spread on the perforated nonwoven fabric pad 106, at which point the perforated nonwoven fabric pad 106 rests on the protrusion 12 and is laid on the bottom of the net basket 105.

[0048] Under the action of the constant force tensioning mechanism, the gravity plate 508 applies a constant pressure to the hydraulic oil in the storage tank 507. The hydraulic oil pushes the piston 504 away from the working pipe 503 through the connecting pipe 506, and drives the winding box 1102 to slide along the second T-shaped guide rod 501 through the connecting rod 505, so that the hollow non-woven fabric pad 106 is always in a constant force tension state. Then, the wire basket 105 is inserted into the drying chamber 101 and placed above the baffle 104. The guide groove 604 at the bottom of the mounting plate 603 rolls along the guide wheel 602 in the mounting groove 601 to achieve horizontal support and limit of the wire basket 105. At the same time, the T-shaped block 204 is inserted into the T-shaped groove of the connecting plate 201 to complete the installation and positioning.

[0049] During the drying operation, the motor 303 is started, and the motor 303 drives the cam 304 to rotate via the second rotating shaft 305. When the tip of the cam 304 abuts against the side wall of the push block 301, it pushes the moving plate 202 to move and stretches the first spring telescopic rod 205; when the tip of the cam 304 passes the push block 301, the moving plate 202 returns to its original position under the reset action of the first spring telescopic rod 205. This process repeats, and the moving plate 202 drives the connecting plate 201 to move horizontally back and forth via the guide rod 203, and then pulls the material box 1101 to move back and forth along the first T-shaped guide rod 402 via the T-shaped block 204. At this time, since the first rotating rod 701 and the second rotating rod 801 are locked, the non-woven fabric pad roll 1107 and the take-up drum 1106 cannot rotate freely. The movement of the material box 1101 directly pulls the hollow non-woven fabric pad 106 to slide at the bottom of the basket 105, and drives the take-up box 1102 to slide synchronously along the second T-shaped guide rod 501. The constant force tensioning mechanism continuously provides tension to ensure that the tension of the hollow non-woven fabric pad 106 is constant. The reciprocating movement of the pad cloth drives the fruits and vegetables to move synchronously. When the fruits and vegetables slide along the inclined surface 1201 and pass over the protrusion 12, they are automatically turned over to avoid uneven heating in some areas and improve the uniformity and efficiency of drying. At the same time, the reciprocating sliding of the pad cloth can prevent it from sticking to the bottom of the basket 105 and prevent the mesh from being blocked.

[0050] When it is necessary to replace the perforated non-woven fabric pad 106, push the telescopic sleeve 907 again to release the lock on the first rotating rod 701 and the second rotating rod 801. Then rotate the rocker wheel 805, which drives the take-up drum 1106 to rotate through the second rotating rod 801, and the old perforated non-woven fabric pad 106 is wound onto the take-up drum 1106. At the same time, the new non-woven fabric pad is released from the material cylinder 1105 and re-laid on the bottom of the mesh basket 105, completing the quick replacement of consumables. The operation is convenient and efficient. Moreover, through the reciprocating sliding of the perforated non-woven fabric pad 106, not only can its adhesion to the mesh basket 105 be reduced, but the risk of mesh clogging of the mesh basket 105 can also be effectively reduced, continuously ensuring the drying effect and operating efficiency of the equipment.

Claims

1. A fruit and vegetable dryer, comprising a main body; the main body includes a drying chamber (101), a baffle (104) connected to the inner wall of the drying chamber (101), and a wire basket (105) placed on the baffle (104); the wire basket (105) is lined with a perforated non-woven fabric mat (106); characterized in that: The main body of the device also includes a replacement mechanism disposed on both sides of the basket (105) and a drive mechanism for driving the replacement mechanism to move back and forth. The replacement mechanism includes a material box (1101) and a winding box (1102) located on both sides of the basket (105), and a fabric pad groove (1103) opened on the opposite side wall of the material box (1101) and the winding box (1102); the material box (1101) is provided with a feeding mechanism, and the winding box (1102) is provided with a winding mechanism; the feeding mechanism includes a material cylinder (1105) rotatably disposed in the material box (1101), a non-woven fabric pad roll (1107) sleeved on the material cylinder (1105), and a first rotating mechanism for driving the material cylinder (1105) to rotate; the winding mechanism includes a winding drum (1106) rotatably disposed in the winding box (1102), and a second rotating mechanism for driving the winding drum (1106) to rotate. The bottom of the basket (105) is fixed with multiple trapezoidal cross-section protrusions (12), and the protrusions (12) are provided with gentle slopes (1201) on both sides; the driving mechanism is connected to the material box (1101) and is used to drive the material box (1101) to move back and forth along the length of the basket (105); one end of the hollow non-woven fabric pad (106) is rolled up on the material cylinder (1105) through the fabric pad groove (1103), and the other end is rolled up through the fabric... The groove (1103) is wound onto the take-up drum (1106); when the material box (1101) moves, the tension of the hollow non-woven fabric pad (106) pulls the take-up drum (1102) to move synchronously; the hollow non-woven fabric pad (106) slides back and forth with the material box (1101) and the take-up drum (1102), and when it passes the protrusion (12), it is supported to form a wave-like undulation, so as to drive the fruits and vegetables on the hollow non-woven fabric pad (106) to automatically turn over.

2. The fruit and vegetable dryer according to claim 1, characterized in that: The replacement mechanism also includes a first guide component for guiding and preventing deviation of the perforated nonwoven fabric pad (106); the first guide component includes two guide rollers (1002) disposed at the inner corner of the basket (105) and a first rotating shaft (1001) connected between the guide rollers (1002) and the basket (105); the guide rollers (1002) slide in contact with the perforated nonwoven fabric pad (106) to guide the perforated nonwoven fabric pad (106) to slide smoothly and prevent deviation.

3. The fruit and vegetable dryer according to claim 1, characterized in that: The driving mechanism includes multiple connecting plates (201) disposed inside the drying chamber (101), a movable plate (202) disposed outside the drying chamber (101), and a guide rod (203) connecting the connecting plates (201) and the movable plate (202); the guide rod (203) is disposed through the drying chamber (101); the driving mechanism also includes a T-shaped block (204) connected to the material box (1101), and the connecting plates (201) have openings for connection with the T-shaped block (201). 4) A matching T-slot, wherein the T-block (204) is slidably embedded in the T-slot; the driving mechanism further includes a first spring telescopic rod (205) connected between the moving plate (202) and the drying chamber (101) and a pushing mechanism for pushing the moving plate (202) to move; the driving mechanism further includes a guiding mechanism connected between the material box (1101) and the wire basket (105) and a constant force tensioning mechanism connected between the winding box (1102) and the wire basket (105).

4. A fruit and vegetable dryer according to claim 3, characterized in that: The pushing mechanism includes a pushing block (301) connected to the moving plate (202), a cam (304) cooperating with the pushing block (301), and a rotating assembly for driving the cam (304) to rotate; the rotating assembly includes a motor (303), a support plate (302) connected between the motor (303) and the outer wall of the drying chamber (101), and a second rotating shaft (305) connected between the cam (304) and the motor (303); the cam (304) abuts against the pushing block (301) to drive the moving plate (202) to reciprocate.

5. A fruit and vegetable dryer according to claim 3, characterized in that: The guiding mechanism includes two first T-shaped guide rods (402) connected to the basket (105) and a first connecting block (401) connected between the first T-shaped guide rods (402) and the material box (1101); the first connecting block (401) is sleeved on the first T-shaped guide rods (402) and can slide along the guide rods to guide the material box (1101) to move back and forth smoothly.

6. A fruit and vegetable dryer according to claim 3, characterized in that: The constant force tensioning mechanism includes two second T-shaped guide rods (501) connected to the net basket (105) and a second connecting block (502) connected between the second T-shaped guide rods (501) and the winding box (1102); the second connecting block (502) is sleeved on the second T-shaped guide rods (501) and can slide along the guide rods; the constant force tensioning mechanism also includes a working tube (503) connected to the net basket (105), a piston (504) slidably connected in the working tube (503), and a piston connected to the piston. (504) and the connecting rod (505) between the second connecting block (502); the constant force tensioning mechanism also includes a liquid storage tank (507), a connecting pipe (506) connecting the liquid storage tank (507) and the working pipe (503), and a gravity plate (508) slidably connected in the liquid storage tank (507); the liquid storage tank (507) is filled with hydraulic oil, and the winding box (1102) is driven to move adaptively by hydraulic and gravity action, so that the hollow non-woven fabric pad (106) is subjected to constant tension force.

7. A fruit and vegetable dryer according to claim 1, characterized in that: The first rotating mechanism includes a first rotating rod (701) rotatably disposed on the side wall of the material box (1101) and a first disc (702) connected to the first rotating rod (701); the material cylinder (1105) is sleeved on the first rotating rod (701); the first rotating mechanism also includes a first limiting component connected to the first rotating rod (701); the first limiting component includes a first nut (703) threadedly connected to the first rotating rod (701) and a second disc (704) connected to the end of the first nut (703); the second disc (704) is sleeved on the first rotating rod (701) to axially limit the material cylinder (1105).

8. A fruit and vegetable dryer according to claim 7, characterized in that: The second rotating mechanism includes a second rotating rod (801) rotatably disposed in a take-up box (1102), a rocker wheel (805) connected to the second rotating rod (801), and a third disc (802) connected to the second rotating rod (801); the take-up drum (1106) is sleeved on the second rotating rod (801); the second rotating mechanism also includes a second limiting assembly connected to the second rotating rod (801); the second limiting assembly includes a second nut (803) threadedly connected to the second rotating rod (801) and a fourth disc (804) connected to the end of the second nut (803); the fourth disc (804) is sleeved on the second rotating rod (801) to axially limit the take-up drum (1106).

9. A fruit and vegetable dryer according to claim 8, characterized in that: The replacement mechanism also includes a limiting mechanism for locking the material cylinder (1105) and the take-up cylinder (1106); the limiting mechanism includes two fixing rings (901) respectively connected to the first rotating rod (701) and the second rotating rod (801); the limiting mechanism also includes a plurality of limiting holes (902) evenly distributed in a ring on the side wall of the fixing rings (901), a limiting rod (906) that can be inserted into the limiting holes (902), and a drive limiting rod (906). A lifting assembly for lifting action; the lifting assembly includes a lifting block (905) connected to a limit rod (906), a fixing block (903) connected to the material box (1101) and the winding box (1102), and a second spring telescopic rod (904) connected between the lifting block (905) and the fixing block (903); a telescopic sleeve rod (907) is connected between the lifting blocks (905) to realize the synchronous locking of the material cylinder (1105) and the winding cylinder (1106).

10. A fruit and vegetable dryer according to claim 1, characterized in that: The main body of the device also includes a second guide assembly disposed between the basket (105) and the baffle (104); the second guide assembly includes a mounting groove (601) opened on the top of the baffle (104) and a plurality of guide wheels (602) rotatably disposed in the mounting groove (601); the second guide assembly also includes two mounting plates (603) connected to the basket (105) and a guide groove (604) opened on the bottom of the mounting plate (603); the guide wheels (602) can roll in the guide groove (604) so ​​that the basket (105) can slide smoothly and be guided and limited.

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