Pretreatment device for processing idesia polycarpa

Abstract

The invention relates to the technical field of agricultural product processing, and discloses a pretreatment device for idesia processing, which comprises a drying box body and a hot air circulation system, and further comprises a placing barrel positioned in the drying box body and a stirring assembly for turning and stirring idesia in the placing barrel, a plurality of ventilation holes are formed in the two end walls of the placement cylinder, and a plurality of strip-shaped through grooves are formed in the circumferential side wall of the placement cylinder; the stirring assembly comprises a stirring roller and a first motor driving the stirring roller to rotate, a plurality of stirring rods are formed on the stirring roller, and hooks are formed at the ends of the stirring rods. Connecting bases are formed on the two side walls of the drying box body. The two end walls of the containing cylinder are connected to the connecting base, the stirring roller is rotationally connected to the connecting base, and the stirring roller and the containing cylinder are coaxially arranged. Idesia polycarpa can be uniformly heated, the drying effect is improved, the idesia polycarpa is threshed while being dried, the subsequent processing procedure is simplified, the processing period is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural product processing, and particularly relates to a pretreatment device for processing castanopsis sylvestris. Background Art

[0002] Edible vegetable oils mainly come from woody and herbaceous crops. Currently, the common edible vegetable oils in the Chinese market mainly come from herbaceous crops such as soybeans, peanuts, rapeseed, corn, etc. The raw materials for their production need to be cultivated and harvested every year, which is time-consuming and labor-intensive. Castanopsis carlesii is a dioecious deciduous tree of the Salicaceae family. Its fruit is shaped like grapes and has a high oil content. The whole fruit can be used to extract oil, which is especially rich in linoleic acid. Castanopsis carlesii usually requires low-temperature drying pretreatment during processing. Drying can help remove excess moisture in the fruit, which is very important for the subsequent processing of Castanopsis carlesii.

[0003] The tung oil fruit is usually collected in large quantities in bunches, and when drying, the bunches of tung oil fruit are usually placed on a shelf and pushed into a drying box for drying. For example, a tung oil fruit processing pretreatment device disclosed in application number CN202323190155.X adopts this method for drying, but in this method, the tung oil fruit is placed statically during drying, and the tung oil fruit is picked in bunches. When placed on a shelf, a piled state will be formed, and the tung oil fruit inside cannot be fully contacted with hot air, resulting in uneven drying, affecting the overall drying effect, and having a certain impact on subsequent processing. In addition, the current drying and defruiting of tung oil fruit are carried out separately, so the processing procedures are complicated and the processing efficiency is low, which restricts the development of the tung oil fruit processing industry to a certain extent.

[0004] In view of this, the inventor conducted in-depth research on the above-mentioned defects in the prior art, and thus came up with this case. Summary of the invention

[0005] The purpose of the present invention is to provide a pretreatment device for processing Castanopsis schrenkiana, so that the Castanopsis schrenkiana can be heated evenly, the drying effect is improved, and the Castanopsis schrenkiana fruit and the fruit stalk are separated during the drying process, thereby simplifying subsequent processing procedures, shortening the processing cycle, and improving production efficiency.

[0006] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0007] A pretreatment device for processing ash nuts, comprising a drying box and a hot air circulation system, also comprising a placing cylinder in the drying box, and a toggling assembly for turning over the ash nuts in the placing cylinder, wherein the placing cylinder is arranged horizontally, a plurality of ventilation holes are formed on the two end walls of the placing cylinder, and a plurality of strip-shaped through grooves are formed on the circumferential side wall of the placing cylinder; the toggling assembly comprises a toggling roller and a first motor for driving the toggling roller to rotate, a plurality of toggling rods are formed on the toggling roller, and a hook is formed at the end of the toggling rod; a connecting seat is formed on the two side walls of the drying box; the two end walls of the placing cylinder are connected to the connecting seat, the toggling roller is rotatably connected to the connecting seat, and the toggling roller is coaxially arranged with the placing cylinder.

[0008] Furthermore, a feed port is formed at the top of the circumferential side wall of the placing cylinder, and a discharge port is formed at the bottom, and the arc length of the feed port is equal to the arc length of the discharge port; a protective cage is rotatably sleeved on the outside of the placing cylinder; the protective cage includes two connecting rings rotatably sleeved on the prevention cylinder, a first fence connected between the two connecting rings to protect the feed port, and a second fence to protect the discharge port, and the arc length of the second fence is equal to twice the arc length of the discharge port; the bar spacing of the first fence and the bar spacing of the second fence are equal to the slot width of the strip-shaped through slot. The feed port and the discharge port can be opened or closed by the protective cage, which is more convenient to use.

[0009] Furthermore, the placing cylinder is rotatably connected to the connecting seat, and a rotating opening is formed on the two end walls of the placing cylinder to rotate with the connecting seat; the drying box body is also provided with a power mechanism to drive the placing cylinder to rotate back and forth. The placing cylinder is driven back and forth by the power mechanism, so that the tung nuts in the placing cylinder are continuously rolled and shaken, so that the dried tung nuts fall off the fruit clusters.

[0010] Furthermore, a locking mechanism is provided between the placing tube and the protective cage; the locking mechanism comprises a locking member and a reset spring slidably mounted on the connecting ring; a mounting plate for mounting the locking mechanism is formed on the connecting ring, an arc-shaped connecting plate is formed on the circumferential wall of the preventing tube, and an arc-shaped guide groove is formed on the side of the connecting plate close to the mounting plate; three limiting holes are formed in the arc-shaped guide groove; a guide column slidably matched with the arc-shaped guide groove is formed on the side of the mounting plate close to the connecting plate, and a sliding cavity for mounting the locking member is formed in the guide column; the locking member comprises a locking column slidably connected with the sliding cavity, a handle, and a connecting column connected between the handle and the locking column, and the handle is located on the side of the mounting plate away from the connecting plate; the reset spring is located in the sliding cavity and is sleeved on the connecting column. When the placing tube is continuously reciprocating, the locking mechanism can prevent the relative rotation between the protective cage and the placing tube, so that the discharge port is opened.

[0011] Furthermore, the power mechanism includes an annular rack, a driving gear, a second motor and a transmission assembly that are slidably arranged in the drying box body; the inner upper wall and the inner lower wall of the annular rack are respectively formed with a first tooth row and a second tooth row that mesh with the driving gear, the outer upper wall of the annular rack is formed with a third tooth row that drives the placement cylinder to rotate, and the bottom of the circumferential side wall of the placement cylinder is formed with external teeth that mesh with the third tooth row; the driving gear shaft is rotatably connected to the side wall of the drying box body; the transmission assembly includes a first pulley fixedly sleeved on the shaft of the driving gear, a second pulley fixedly sleeved on the conveying shaft of the second motor, and a synchronous belt sleeved on the first pulley and the second pulley. The use of the annular rack and the driving gear can make the entire power mechanism have a stronger load-bearing capacity and a longer service life.

[0012] Furthermore, a slide seat for mounting the annular rack is formed on the inner bottom wall of the drying box, and a slide groove cooperating with the slide seat is formed on the outer bottom wall of the annular rack. The cooperation between the slide seat and the slide groove can make the movement of the annular rack more stable.

[0013] Furthermore, the drying box is provided with a receiving box, which is located below the placing cylinder, and the side wall of the drying box is provided with an inlet and outlet for the receiving box to enter and exit; a handle is provided on the outside of the receiving box, so that the fruits can be conveniently taken out of the drying box through the receiving box.

[0014] Furthermore, the drying box body is also provided with a box cover, and the box cover is hinged to the drying box body.

[0015] After adopting the above structure, the pretreatment device for processing Castanopsis truncatula according to the present invention has the following beneficial effects compared with the prior art:

[0016] 1. When drying the tung nuts, the roller is rotated continuously, and the tung nut clusters are continuously hooked up using the lever to prevent the tung nuts from always being in a pile. In this way, the tung nuts can be fully exposed to the hot air, and the tung nuts can be evenly heated, which has a better drying effect.

[0017] 2. The power mechanism is used to drive the placing cylinder to continuously perform reciprocating rotational motion, so that the Chinese tallow tree nuts in the placing cylinder are continuously rolled and beaten, which can make the Chinese tallow tree nuts evenly heated. In addition, after being dried to a certain extent, the Chinese tallow tree nuts can be separated from the fruit stalks and separated from the strip-shaped through grooves by continuous rolling and beating. This simplifies subsequent processing procedures and improves the efficiency of Chinese tallow tree nut processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the box cover when it is opened;

[0021] Figure 3 for Figure 1 A cross-sectional schematic diagram of

[0022] Figure 4 for Figure 3 A schematic diagram of the local enlarged structure at point A in the middle;

[0023] Figure 5 for Figure 3 A schematic diagram of the local enlarged structure at B in the middle;

[0024] Figure 6 A schematic diagram of the internal structure of the present invention;

[0025] Figure 7 It is a structural schematic diagram of the shifting roller in the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of placing the cylinder in the present invention;

[0027] Fig. 9 It is a structural schematic diagram of the protection cage in the present invention;

[0028] Fig.10 It is a structural schematic diagram of the locking mechanism in the present invention;

[0029] Fig.11 It is a schematic diagram of the structure of the annular rack in the present invention.

[0030] The main component symbols are as follows: drying box body 1, connecting seat 11, sliding seat 12, inlet and outlet 13, box cover 14, hot air circulation system 2, placement cylinder 3, ventilation port 31, strip through groove 32, feed port 33, discharge port 34, rotation port 35, connecting plate 36, arc guide groove 361, limit hole 3611, external tooth 37, toggle assembly 4, toggle roller 41, toggle rod 411, first motor 42, protective cage 5, connecting ring 51, mounting plate 511, guide column 511 1. Sliding cavity 5112, first fence 52, second fence 53, power mechanism 6, annular rack 61, first tooth row 611, second tooth row 612, third tooth row 613, slide groove 614, driving gear 62, second motor 63, transmission assembly 64, first pulley 641, second pulley 642, synchronous belt 643, locking mechanism 7, locking member 71, locking column 711, handle 712, connecting column 713, reset spring 72, material receiving box 8, handle 81. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that in the drawings or descriptions of the specification, similar or identical parts use the same figure numbers, and the implementation methods not shown or described in the drawings are forms known to ordinary technicians in the relevant technical field. In addition, the directional terms mentioned in the embodiments, such as "upper", "lower", "top", "bottom", "left", "right", "front", "back", etc., are only referenced to the directions of the drawings and are not used to limit the scope of protection of the present invention.

[0032] like Figures 1 to 11 As shown, the present invention relates to a pretreatment device for processing ash fruit, comprising a drying box 1 and a hot air circulation system 2, through which the hot air circulation system 2 is used to heat the interior of the drying box 1 to dry the ash fruit; specifically, it also includes a placement cylinder 3 in the drying box 1 for placing ash fruit ears, and a toggle assembly 4 for turning over the ash fruit ears in the placement cylinder 3, the placement cylinder 3 is arranged horizontally, a plurality of ventilation holes are formed on the two end walls of the placement cylinder 3, and a plurality of strip grooves 32 are formed on the circumferential side wall of the placement cylinder 3, and hot air can enter the placement cylinder 3 through the ventilation holes and the strip grooves 32 so that the hot air can fully enter the placement cylinder 3; the toggle assembly 4 includes a toggle roller 4 1 and a first motor 42 for driving the toggle roller 41 to rotate, the first motor 42 is fixedly mounted on the outer wall of the drying box 1, the output shaft of the first motor 42 is connected to the toggle roller 41 in a transmission manner, the toggle roller 41 is formed with a plurality of toggle rods 411, and the ends of the toggle rods 411 are formed with hooks; the time for the toggle roller 41 to rotate one circle can be set between 40-60 seconds, so that the hooked tung fruit ears have enough time to contact with the hot air; a connecting seat 11 is formed on the two side walls of the drying box 1, and the connecting seat 11 is cylindrical; the two end walls of the placement cylinder 3 are connected to the connecting seat 11, the toggle roller 41 is rotatably connected to the connecting seat 11, and the toggle roller 41 is coaxially arranged with the placement cylinder 3. When drying the tung fruit ears, the toggle roller 41 rotates continuously to hook up the tung fruit ears, so as to prevent the tung fruit ears from being in a static state all the time, so that the tung fruit ears are constantly hooked up, and in addition, each time the tung fruit is dried, the tung fruit occupies about one third of the volume of the placement cylinder 3.

[0033] Preferably, in order to facilitate the fruit ears of the tung tree to enter the placement barrel or to be discharged from the placement barrel 3, a feed port 33 is formed at the top of the circumferential side wall of the placement barrel 3, and a discharge port 34 is formed at the bottom, and the arc length of the feed port 33 is equal to the arc length of the discharge port 34; the outer rotation sleeve of the placement barrel 3 is provided with a protective cage 5; the protective cage 5 includes two connecting rings 51 rotatably sleeved on the prevention barrel, a first fence 52 connected between the two connecting rings 51 to protect the feed port 33, and a second fence 53 to protect the discharge port 34, and the arc length of the second fence 53 is equal to twice the arc length of the discharge port 34; the bar spacing of the first fence 52 and the bar spacing of the second fence 53 are equal to the slot width of the strip through groove 32. The feed port 33 and the discharge port 34 can be opened or closed by the protective cage 5, which is more convenient to use. When feeding is required, the protective cage 5 is rotated outward, and the first fence 52 is displaced from the feeding port 33, and the feeding port 33 is opened. Since the arc length of the second fence 53 is equal to twice the arc length of the discharging port 34, the discharging port 34 is always kept closed. When discharging is required, the protective cage 5 is rotated inward in the opposite direction to open the discharging port 34. In addition, the width of the bar-shaped through groove 32 is 2-3 mm, which can allow the fruit stalk of the mountain ash to pass through.

[0034] Preferably, the placing cylinder 3 is rotatably connected to the connecting seat 11, and a rotating opening 35 that is rotatably matched with the connecting seat 11 is formed on the two end walls of the placing cylinder 3, and the rotating opening 35 is connected to the connecting seat 11 through a bearing; the drying box body 1 is also provided with a power mechanism 6 that drives the placing cylinder 3 to reciprocate. The power mechanism 6 drives the placing cylinder 3 to reciprocate, so that the tung nuts in the placing cylinder 3 are continuously rolled and shaken, so that the dried tung nuts fall off the fruit clusters. Specifically, the power mechanism 6 includes an annular rack 61, a driving gear 62, a second motor 63 and a transmission assembly 64 slidably arranged in the drying box body 1; the inner upper wall and the inner lower wall of the annular rack 61 are respectively formed with a first tooth row 611 and a second tooth row 612 meshing with the driving gear 62, the outer upper wall of the annular rack 61 is formed with a third tooth row 613 driving the placement drum 3 to rotate, and the bottom of the circumferential side wall of the placement drum 3 is formed with external teeth 37 meshing with the third tooth row 613; the driving gear 62 is an incomplete tooth, and the driving gear 62 shaft is rotatably connected to the side wall of the drying box body 1, and a bearing seat is provided on the side wall of the drying box body 1, and the shaft of the driving gear 62 is installed on the bearing seat; the transmission assembly 64 includes a first pulley 641 fixedly mounted on the shaft of the driving gear 62, a second pulley 642 fixedly mounted on the conveying shaft of the second motor 63, and a synchronous belt 643 mounted on the first pulley 641 and the second pulley 642. When the second motor 63 is rotating, the transmission assembly 64 drives the driving gear 62 to rotate, and the driving gear 62 drives the annular rack 61 to do reciprocating linear motion, and then the annular rack 61 drives the placement tube 3 to rotate back and forth continuously, so that the tung oil spikes in the placement tube 3 are continuously rolled and beaten. When the tung oil spikes are air-dried to a certain extent, the tung oil fruits are separated during the rolling and beating process, and the fallen fruit stalks will fall out of the bar-shaped through grooves 32, and the fruits and fruit spikes will continue to remain in the placement tube 3. In the actual operation process, in order to make the threshing effect more significant, after the drying is completed, the connection strength between the fruit stalk and the fruit will be relatively weakened. Therefore, the speed of the second motor 63 and the first motor 42 can be controlled to increase, thereby increasing the frequency of the rotation and swinging of the placement tube 3 to the left and right, and increasing the rotation speed of the swishing roller 41, so as to increase the strength of beating the tung oil, make the fruit and the stalk easier to separate, simplify the subsequent processing steps, and improve the overall processing efficiency.

[0035] Preferably, a locking mechanism 7 is further provided between the placement cylinder 3 and the protection cage 5; the locking mechanism 7 comprises a locking piece 71 and a reset spring 72 slidably mounted on the connecting ring 51; a mounting plate 511 for mounting the locking mechanism 7 is formed on the connecting ring 51, and an arc-shaped connecting plate 36 is formed on the circumferential wall of the preventing cylinder, and an arc-shaped guide groove 361 is formed on one side of the connecting plate 36 close to the mounting plate 511; three limiting holes 3611 are formed in the arc-shaped guide groove 361, and the three limiting holes 3611 are respectively located at the inner, middle and outer positions; the mounting plate A guide column 5111 which slides with the arc guide groove 361 is formed on one side of 511 close to the connecting plate 36, and a sliding cavity 5112 for installing the locking member 71 is formed in the guide column 5111; the locking member 71 includes a locking column 711 which is slidably connected to the sliding cavity 5112, a handle 712 and a connecting column 713 connected between the handle 712 and the locking column 711, and the handle 712 is located on the side of the mounting plate 511 away from the connecting plate 36; the reset spring 72 is located in the sliding cavity 5112 and is sleeved on the connecting column 713. When the placement cylinder 3 is continuously rotating back and forth, the locking mechanism 7 can prevent relative rotation between the protection cage 5 and the placement cylinder 3, so that the discharge port 34 is opened. During the specific operation, hold the handle 712 and pull it to the side away from the connecting plate 36 to disengage the clamping column 711 from the limiting hole 3611, then rotate the protection cage 5 outward or inward, and then clamp the clamping column 711 to the other limiting hole 3611.

[0036] Preferably, a slide seat 12 for mounting an annular rack 61 is formed on the inner bottom wall of the drying box 1, and a slide groove 614 cooperating with the slide seat 12 is formed on the outer bottom wall of the annular rack 61. The slide groove 614 is a dovetail groove, and the cooperation between the slide seat 12 and the slide groove 614 can make the movement of the annular rack 61 more stable.

[0037] Preferably, the drying box 1 is also provided with a receiving box 8, which is located below the placement tube 3, and an inlet and outlet 13 for the receiving box 8 to enter and exit is provided on the side wall of the drying box 1; a handle 81 is provided on the outer side of the receiving box 8. The receiving box 8 is used to facilitate the fruit to be taken out of the drying box 1. In specific use, there can be at least two receiving boxes 8, and the two receiving boxes 8 are used successively. For example, one of them is used during the drying process to receive the fallen fruit stalks. When the drying is completed, another receiving box 8 with a filter plate can be replaced to receive the fruit and the fruit ears, and the fruit and the fruit ears are separated by the filter plate.

[0038] Preferably, the drying box body 1 is further provided with a box cover 14 , which is hinged to the drying box body 1 , and specifically, the box cover 14 is a sealed box cover 14 .

[0039] The method of using the present invention is as follows: first, open the box cover 14, and rotate the protective cage 5 to open the feed port 33 of the placement tube 3, pour the ash spikes into the placement tube 3, then close the feed port 33 and cover the box cover 14, then start the device, so that the hot air circulation system 2, the first motor 42 and the second motor 63 start working, while drying, the stirring roller 41 continuously rotates to continuously hook up the ash spikes so that the hot air is fully in contact with the ash spikes, and the placement tube 3 is driven by the power mechanism 6 to continuously reciprocate, further rolling and beating the ash spikes, separating the fruit from the spikes while drying, and finally discharging through the discharge port 34. In addition, after the drying is completed, the rotation speed of the first motor 42 and the second motor 63 can be controlled to increase, the frequency of the placement tube 3 rotating left and right, and the rotation speed of the stirring roller 41 can be increased, so as to increase the force of beating the ash spikes and make the fruit and the fruit stalk easier to separate.

[0040] The above is a detailed introduction to a pretreatment device for processing Castanopsis truncatula provided by the present invention. The description of the specific embodiment is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A pretreatment device for processing tung nuts, comprising a drying box (1) and a hot air circulation system (2), characterized in that: The drying box (1) further comprises a placement cylinder (3) in the drying box (1) and a toggling assembly (4) for turning over the tung nuts in the placement cylinder (3); the placement cylinder (3) is arranged horizontally, a plurality of ventilation holes (31) are formed on the two end walls of the placement cylinder (3), and a plurality of strip-shaped through grooves (32) are formed on the circumferential side wall of the placement cylinder (3); the toggling assembly (4) comprises a toggling roller (41) and a first motor (42) for driving the toggling roller (41) to rotate, a plurality of toggling rods (411) are formed on the toggling roller (41), and a curved hook is formed at the end of the toggling rod (411); a connecting seat (11) is formed on the two side walls of the drying box (1); the two end walls of the placement cylinder (3) are connected to the connecting seat (11), the toggling roller (41) is rotatably connected to the connecting seat (11), and the toggling roller (41) is coaxially arranged with the placement cylinder (3).

2. A pretreatment device for processing Castanopsis sylvestris according to claim 1, characterized in that: The top of the circumferential side wall of the placing cylinder (3) is formed with a feed port (33), and the bottom is formed with a discharge port (34), and the arc length of the feed port (33) is equal to the arc length of the discharge port (34); the outer rotatable sleeve of the placing cylinder (3) is provided with a protective cage (5); the protective cage (5) comprises two connecting rings (51) rotatably sleeved on the prevention cylinder (3), a first fence (52) connected between the two connecting rings to protect the feed port (33), and a second fence (53) to protect the discharge port (34), and the arc length of the second fence (53) is equal to twice the arc length of the discharge port (34); the bar spacing of the first fence (52) and the bar spacing of the second fence (53) are equal to the slot width of the strip-shaped through slot (32).

3. A pretreatment device for processing Castanopsis sylvestris according to claim 2, characterized in that: The placement cylinder (3) is rotatably connected to the connection seat (11), and rotation openings (35) that are rotatably matched with the connection seat (11) are formed on the two end walls of the placement cylinder (3); the drying box body (1) is also provided with a power mechanism (6) that drives the placement cylinder (3) to reciprocate.

4. The pretreatment device for processing Castanopsis japonici according to claim 3, characterized in that: A locking mechanism (7) is also provided between the placement tube (3) and the protection cage (5); the locking mechanism (7) comprises a locking piece (71) and a return spring (72) slidably mounted on the connecting ring (51); a mounting plate (511) for mounting the locking mechanism (7) is formed on the connecting ring (51); an arc-shaped connecting plate (36) is formed on the circumferential wall of the prevention tube (3); an arc-shaped guide groove (361) is formed on one side of the connecting plate (36) close to the mounting plate (511); three limiting holes (3611) are formed in the arc-shaped guide groove (361); the mounting plate (511) is close to the connecting plate ( A guide column (5111) is formed on one side of the mounting plate (511) and is slidably matched with the arc guide groove (361), and a sliding cavity (5112) for installing the locking member (71) is formed in the guide column (5111); the locking member (71) includes a locking column (711) slidably connected to the sliding cavity (5112), a handle (712) and a connecting column (713) connected between the handle and the locking column (711), and the handle (712) is located on the side of the mounting plate (511) away from the connecting plate (36); the reset spring (72) is located in the sliding cavity (5112) and is sleeved on the connecting column (713).

5. The pretreatment device for processing Castanopsis japonici according to claim 3, characterized in that: The power mechanism (6) comprises an annular rack (61) slidably arranged in the drying box body (1), a driving gear (62), a second motor (63) and a transmission assembly (64); the inner upper wall and the inner lower wall of the annular rack (61) are respectively formed with a first tooth row (611) and a second tooth row (612) meshing with the driving gear (62); the outer upper wall of the annular rack (61) is formed with a third tooth row (613) for driving the placement cylinder (3) to rotate; the placement cylinder (3 ) is formed with external teeth (37) meshing with the third tooth row (613) at the bottom of the circumferential side wall of the drying box (3); the driving gear (62) is rotatably connected to the side wall of the drying box (3); the transmission assembly (64) includes a first pulley (641) fixedly mounted on the rotating shaft of the driving gear (62), a second pulley (642) fixedly mounted on the conveying shaft of the second motor (64), and a synchronous belt (643) mounted on the first pulley (641) and the second pulley (642).

6. The pretreatment device for processing Castanopsis japonici according to claim 5, characterized in that: A slide seat (12) for mounting the annular rack (61) is formed on the inner bottom wall of the drying box body (3), and a slide groove (614) cooperating with the slide seat (12) is formed on the outer bottom wall of the annular rack (61).

7. The pretreatment device for processing Castanopsis japonici according to claim 1, characterized in that: The drying box (1) is also provided with a material receiving box (8), the material receiving box (8) is located below the placement cylinder (3), and an inlet and outlet (13) for the material receiving box (8) to enter and exit is provided on the side wall of the drying box (1); a handle (81) is provided on the outer side of the material receiving box (8).

8. The pretreatment device for processing Castanopsis japonici according to claim 1, characterized in that: The drying box body (1) is also provided with a box cover (14), and the box cover (14) is hinged to the drying box body (1).

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