Cooling device for metal plate casting

Abstract

The invention discloses a cooling device for metal plate casting, and relates to the technical field of metal plate casting. A cooling device for metal plate casting comprises a main cylinder mechanism, the main cylinder mechanism comprises a machining cylinder assembly and a material receiving cylinder assembly, a cooling assembly is arranged in the machining cylinder assembly and comprises a spraying mechanism and a rotating mechanism, the rotating mechanism comprises a refrigerating box, a motor is arranged on the upper side of the refrigerating box, and a cooling belt assembly is arranged on the lower side of the refrigerating box. The cooling belt assembly comprises a cooling belt, cooling pipes which are sequentially arranged are connected into the cooling belt in a penetrating and embedded mode, the two ends of each cooling pipe fixedly communicate with a refrigeration box, the cooling belt assembly further comprises a belt ring, an air cylinder is fixedly installed on the upper side of the belt ring, and the fixed end of the air cylinder is correspondingly embedded in the refrigeration box. The two sides of the surface of the belt ring are each provided with a belt groove in a penetrating mode, according to the cooling device for metal plate casting, the inlet and outlet heat exchange efficiency of a cooling zone is balanced, and the cooling uniformity is improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal sheet casting, in particular to a cooling device for metal sheet casting. Background Art

[0002] Casting is a kind of metal heat processing technology that humans mastered relatively early. Casting is a method of pouring liquid metal into a casting cavity that is adapted to the shape of the part, and then cooling and solidifying it to obtain a part or blank. The cast material is mostly a metal that was originally solid but heated to liquid (for example: copper, iron, aluminum, tin, lead, etc.), and the material of the mold can be sand, metal or even ceramic.

[0003] The Chinese patent with the announcement number CN209716445U discloses a cooling device for metal sheet casting, including a storage box, a delivery pump is fixed at the right position of the lower end of the storage box, two heat sinks are symmetrically installed at the front end, the rear end, the left end and the right end of the storage box, an air cooling component is installed at the upper end of the storage box, the right end of the air cooling component is connected to the return pipe, the lower end of the return pipe is installed with a coil in the mold, the lower left end of the coil in the mold is fixed with an output pipe, the upper left end of the output pipe is fixedly connected to the outlet of the delivery pump, and the air cooling component includes a fan wheel, a central shaft, a central A hollow cylinder, a swirl plate and a water outlet pipe, the return pipe is installed at the rear position of the right end of the hollow cylinder, the central shaft is rotatably installed at the bottom end of the hollow cylinder, at least two swirl plates are evenly fixed at the annular outer end of the central shaft, at least two swirl plates are arranged inside the hollow cylinder, the water outlet pipe is installed at the left position of the lower end of the hollow cylinder, the water outlet pipe is installed at the upper end of the storage box and extends to the inside of the storage box, the central shaft is installed inside the hollow cylinder and extends to the upper end of the hollow cylinder, the upper end of the central shaft is fixed with a fan wheel, and the lower side of the fan wheel is provided with a hollow cylinder and a return pipe. The cooling medium inside the storage box is transported to the inside of the coil in the mold by a delivery pump, and the cooling medium flowing inside the coil in the mold exchanges heat with the casting mold to achieve cooling of the casting mold.

[0004] The coil inside the mold in the technical solution of the above patent forms a connected loop after being coiled inside the mold. Therefore, when the cooling medium flows in the coil inside the mold, the heat exchange efficiency is relatively high in the early stage, while the heat exchange efficiency is significantly reduced in the later stage, resulting in the heat exchange efficiency gradually decreasing with the depth of entering the mold, thereby causing the problem of uneven cooling. Therefore, a cooling device for metal sheet casting is urgently needed to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a cooling device for metal sheet casting to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: A cooling device for metal sheet casting, comprising a main cylinder mechanism, wherein the main cylinder mechanism comprises a processing cylinder assembly and a receiving cylinder assembly; A cooling assembly is provided inside the processing cylinder assembly, and the cooling assembly includes a spray mechanism and a rotating mechanism; The rotating mechanism comprises a refrigeration box, a motor is fixedly mounted on the upper side of the refrigeration box, and a cooling belt assembly is arranged on the lower side of the refrigeration box; The cooling belt assembly comprises a cooling belt, both ends of which are fixedly connected to a refrigeration box, the interior of the cooling belt is penetrated and embedded with cooling pipes arranged in sequence, both ends of the cooling pipes are fixedly connected to the refrigeration box, and water pumps are installed at different ends of adjacent cooling pipes; The cooling belt assembly also includes a belt ring, a cylinder is fixedly installed on the upper side of the belt ring, and the fixed end of the cylinder is correspondingly embedded in the refrigeration box. The two sides of the surface of the belt ring are respectively penetrated with belt grooves adapted to insert the cooling belt. A blocking column is fixedly connected to the middle of the lower surface of the belt ring. The lower end of the blocking column is smooth, and a blocking disk is fixedly sleeved on the outer side of the blocking column. A channel mechanism for conveying the mold is arranged on one side of the rotating mechanism away from the spraying mechanism.

[0007] As a preferred technical solution of the present invention, the processing cylinder assembly includes a main cylinder containing a coolant inside, an upper end surface of the main cylinder is provided with an inclined ramp, and an inner wall of an upper end of the main cylinder is fixedly connected with a grid plate parallel to the ramp; The upper end of the main cylinder is fixedly covered with a cover, and a through opening is formed through the side wall of the cover; The receiving barrel assembly is connected to the processing barrel assembly from the side where the ramp is located; The receiving barrel assembly comprises a receiving barrel fixedly connected to the main barrel, and an air bag is fixedly connected to the lower inner wall of the receiving barrel.

[0008] The fixed end of the motor is fixedly connected to the upper inner wall of the cover; A first buckle ring is fixedly connected to the middle portion of the lower side of the cooling belt.

[0009] As a preferred technical solution of the present invention, the spray mechanism is far away from the opening, and the spray mechanism includes a pump body fixedly connected to the lower inner wall of the main cylinder, the upper side of the pump body is fixedly connected to a pump pipe, and the upper end of the pump pipe is fixedly connected to a nozzle facing the cooling zone.

[0010] As a preferred technical solution of the present invention, the channel mechanism includes two track assemblies overlapped on the inclined platform, each track assembly includes a first rail parallel to the inclined platform, and one end of the first rail is fixedly connected to a horizontal second rail; A first notch is provided on the side of the first rail, and the first notches of the two rail assemblies are staggered; A second notch corresponding to the cooling belt is formed on the upper side of the second rail, and a stop pad for resisting the mold is fixedly connected to the upper side of one end of the second rail away from the first rail; The other ends of the first rails of the two track assemblies are commonly fixed with a fixed block, and the fixed block is fixedly connected to the connecting tube.

[0011] A trolley assembly is commonly provided on the two track assemblies. The trolley assembly comprises a sliding plate fitted with the track assembly. A clamping plate is fixedly connected to the upper surface of the sliding plate. Both ends of the lower surface of the sliding plate are respectively fixedly connected to sliding feet that slide and engage the track assembly.

[0012] A stirring mechanism for stirring is provided below the rotating mechanism, the stirring mechanism comprises a connecting post, the upper end of the connecting post is inserted between the two track assemblies and fixedly connected with a second buckle ring, the second buckle ring is buckled with the first buckle ring; The lower end of the connecting post is plugged with an inserting sleeve, and a spring is fixedly connected between the connecting post and the inserting sleeve; The lower end of the insert cylinder is fixedly connected to a shaft column, the lower end of the shaft column is fixedly connected to a stirring fan, and the lower end of the stirring fan is movably connected to the lower inner wall of the main cylinder through a bearing; A transverse column groove is formed through the surface of the shaft column, a U-shaped plug rod is slidably inserted in the column groove, both ends of the plug rod are fixedly connected with connecting rods, and one end of the connecting rod away from the plug rod is fixedly connected to the connecting column.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) A cooling device for sheet metal casting, wherein after the previous mold is cooled and unloaded, a trolley assembly will transport a new mold, and the loading and unloading operations are performed continuously, thereby improving the operating efficiency of the cooling device.

[0014] (2) A cooling device for sheet metal casting, wherein the mold is pushed onto a cooling belt by a clamping plate of a trolley assembly and a stopper abuts against the mold, thereby completing the loading of the mold. The setting of the stopper can accurately move the mold into place, thereby improving the loading accuracy of the device.

[0015] (3) A cooling device for sheet metal casting, which uses a cooling belt, a blocking column and a blocking plate to block the gap between the upper and lower molds, thereby improving the waterproofness of the mold when cooling, and improving the cooling protection of the device.

[0016] (4) A cooling device for sheet metal casting, wherein the directions of coolant flowing between adjacent cooling tubes are different, thereby balancing the heat exchange efficiency of the inlet and outlet of the cooling belt, cooling the mold through the cooling belt, and improving the uniformity of cooling.

[0017] (5) A cooling device for sheet metal casting, in which the mold rotates and the pump body of the spray mechanism is started to extract the coolant inside the main cylinder and spray it on the mold through the nozzle. On the other hand, the rotation of the mold itself drives the air flow to cool down, thereby increasing the cooling speed of the device.

[0018] (6) A cooling device for metal sheet casting, which tilts the first rail and opens a first notch on the first rail so that the cooled mold can be flipped from the first notch onto the air bag in the connecting tube, thereby completing automatic unloading of the device and improving the automation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the interior of the main cylinder mechanism of the present invention; Figure 3 It is a schematic diagram of the main cylinder mechanism of the present invention; Figure 4 It is a schematic diagram of the channel mechanism of the present invention; Figure 5 It is a schematic diagram of the spray mechanism of the present invention; Figure 6 It is a schematic diagram of the rotating mechanism of the present invention; Figure 7 It is a schematic diagram of the cooling zone of the present invention; Figure 8 It is a schematic diagram of the belt ring of the present invention; Fig. 9 This is a schematic diagram of the connection of the plugging column of the present invention; Fig.10 This is a schematic diagram of the second notch alignment of the present invention; Fig.11 It is a schematic diagram of the position of the stirring mechanism of the present invention; Fig.12 For the present invention Fig.11 A magnified schematic diagram of point A; Fig.13 Schematic diagram of the stirring mechanism of the present invention.

[0020] In the figure: 1. main cylinder mechanism; 101. main cylinder; 102. ramp; 103. grid plate; 104. cover; 105. opening; 106. connecting cylinder; 107. air bag; 2. channel mechanism; 201. first rail; 202. first notch; 203. second rail; 204. second notch; 205. stopper; 206. solid block; 207. sliding plate; 208. clamping plate; 209. sliding foot; 3. spray mechanism; 301. pump body; 302. pump pipe; 303, nozzle; 4, rotating mechanism; 401, refrigeration box; 402, motor; 403, cooling belt; 404, cooling pipe; 405, first buckle; 406, belt ring; 407, cylinder; 408, belt groove; 409, blocking column; 410, blocking plate; 5, stirring mechanism; 501, connecting column; 502, second buckle; 503, insert cylinder; 504, spring; 505, shaft column; 506, column groove; 507, insert rod; 508, connecting rod; 509, stirring fan. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example: See Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , a cooling device for metal sheet casting, comprising a main cylinder mechanism 1, the main cylinder mechanism 1 comprising a processing cylinder assembly and a receiving cylinder assembly; A cooling assembly is provided inside the processing barrel assembly, and the cooling assembly includes a spray mechanism 3 and a rotating mechanism 4; The rotating mechanism 4 includes a refrigeration box 401, a motor 402 is fixedly mounted on the upper side of the refrigeration box 401, and a cooling belt assembly is arranged on the lower side of the refrigeration box 401; The cooling belt assembly includes a cooling belt 403, both ends of the cooling belt 403 are fixedly connected to the refrigeration box 401, the interior of the cooling belt 403 is penetrated and embedded with cooling pipes 404 arranged in sequence, both ends of the cooling pipes 404 are fixedly connected to the refrigeration box 401, and water pumps are installed at different ends of adjacent cooling pipes 404; The cooling belt assembly also includes a belt ring 406, a cylinder 407 is fixedly installed on the upper side of the belt ring 406, and the fixed end of the cylinder 407 is correspondingly embedded in the refrigeration box 401. The surface of the belt ring 406 is penetrated by belt grooves 408 adapted to insert the cooling belt 403, and a blocking column 409 is fixedly connected to the middle of the lower surface of the belt ring 406. The lower end of the blocking column 409 is smooth, and the blocking column 409 is adapted to the gate of the metal plate casting mold. The outer side of the blocking column 409 is fixedly sleeved with a blocking disk 410; A channel mechanism 2 for conveying the mold is arranged on the side of the rotating mechanism 4 away from the spraying mechanism 3 .

[0023] See also Figure 3 , Figure 6 , Figure 7 The processing cylinder assembly includes a main cylinder 101 containing cooling liquid inside, an oblique ramp 102 is provided on one side of the upper end surface of the main cylinder 101, and a grid plate 103 parallel to the ramp 102 is fixedly connected to the inner wall of one side of the upper end of the main cylinder 101. The grid plate 103 is arranged to receive the mold that falls from the second rail 203 to prevent the mold from falling into the cooling water in the main cylinder 101; The upper end of the main tube 101 is fixedly covered with a cover 104, and a through hole 105 is formed through the side wall of the cover 104; The receiving barrel assembly docks with the processing barrel assembly from the side where the inclined platform 102 is located; The receiving barrel assembly comprises a receiving barrel 106 fixedly connected to the main barrel 101 , and an air bag 107 is fixedly connected to the lower inner wall of the receiving barrel 106 .

[0024] The fixed end of the motor 402 is fixedly connected to the upper inner wall of the cover 104; A first buckle ring 405 is fixedly connected to the middle portion of the lower side of the cooling belt 403 .

[0025] See also Figure 2 , Figure 5 , Fig.10 The spray mechanism 3 is far away from the opening 105, and the spray mechanism 3 includes a pump body 301 fixedly connected to the lower inner wall of the main cylinder 101, and the upper side of the pump body 301 is fixedly connected to a pump pipe 302, and the upper end of the pump pipe 302 is fixedly connected to a nozzle 303 facing the cooling zone 403.

[0026] See also Figure 2 , Figure 4 , Fig.10 , Fig.11 , Fig.12 , Fig.13 The channel mechanism 2 includes two track assemblies overlapped on the ramp 102, each track assembly includes a first rail 201 parallel to the ramp 102, and one end of the first rail 201 is fixedly connected to a horizontal second rail 203; A first notch 202 is formed on the side of the first rail 201, and the first notches 202 of the two rail assemblies are staggered; A second notch 204 corresponding to the cooling belt 403 is formed on the upper side of the second rail 203, and a stopper 205 for resisting the mold is fixedly connected to the upper side of one end of the second rail 203 away from the first rail 201; The other ends of the first rails 201 of the two track assemblies are commonly fixed with a fixed block 206 , and the fixed block 206 is fixedly connected to the connecting tube 106 .

[0027] The two track assemblies are provided with a trolley assembly, which includes a sliding plate 207 that fits the track assembly, a clamping plate 208 is fixedly connected to the upper surface of the sliding plate 207, and sliding feet 209 that slide and engage the track assembly are fixedly connected to both ends of the lower surface of the sliding plate 207.

[0028] A stirring mechanism 5 for stirring is provided below the rotating mechanism 4. The stirring mechanism 5 includes a connecting post 501. The upper end of the connecting post 501 is inserted between the two track components and fixedly connected with a second buckle 502. The second buckle 502 is buckled with the first buckle 405. The lower end of the connecting post 501 is plugged with an inserting sleeve 503, and a spring 504 is fixedly connected between the connecting post 501 and the inserting sleeve 503; The lower end of the insert cylinder 503 is fixedly connected to a shaft column 505, and the lower end of the shaft column 505 is fixedly connected to a stirring fan 509. The lower end of the stirring fan 509 is movably connected to the lower inner wall of the main cylinder 101 through a bearing. A horizontal column groove 506 is formed through the surface of the shaft column 505 , in which a U-shaped insertion rod 507 is slidably inserted. Both ends of the insertion rod 507 are fixedly connected to connecting rods 508 , and one end of the connecting rod 508 away from the insertion rod 507 is fixedly connected to the connecting column 501 .

[0029] The working principle of the present invention is as follows: The mold to be cooled is placed against the clamping plate 208 on two track assemblies, and is first allowed to cool statically while waiting for the previous mold to be completely cooled in the processing cylinder assembly. After the previous mold is unloaded, the new mold is transported by the trolley assembly to improve the operating efficiency of the cooling device.

[0030] When the mold slides on the first rail 201, it is adsorbed by the clamping plate 208, so that it can be smoothly transported to the second rail 203 through the first gap 202. While waiting for the mold to be in place, the cylinder 407 contracts to move the belt ring 406 upward, and the cooling belt 403 is loosely placed on the second gap 204. The mold is pushed onto the cooling belt 403 by the clamping plate 208 of the trolley assembly and the baffle 205 abuts against the mold, thereby completing the loading of the mold. The mold can be accurately transferred to the position through the setting of the baffle 205, thereby improving the loading accuracy of the device.

[0031] After the mold is in place, the trolley assembly automatically returns to its position and cooperates with the static cooling of the next mold. At this time, the cylinder 407 is extended to make the belt ring 406 move down close to the mold. At the same time, the blocking column 409 is inserted into the gate of the mold, and the gate is sealed by the blocking plate 410. While the belt ring 406 moves down, the cooling belt 403 can be adjusted to make it attached to the gap between the upper and lower molds of the mold and tighten the mold at the same time. The gap between the upper and lower molds is blocked by the cooling belt 403, the blocking column 409 and the blocking plate 410, thereby improving the waterproofness of the mold when cooling down and improving the cooling protection of the device.

[0032] By setting the cooling tube 404 in the cooling belt 403, water pumps are installed at different ends of adjacent cooling tubes 404, so that the directions of the coolant flowing between adjacent cooling tubes 404 are different, thereby balancing the inlet and outlet heat exchange efficiency of the cooling belt 403, cooling the mold through the cooling belt 403, and improving the uniformity of cooling.

[0033] By setting the cooling belt 403, it is possible to adapt to the shapes of various molds for fitting wrapping, thereby improving the stability of the lifting mold, and adapt to various molds for fitting cooling, thereby increasing the scope of application.

[0034] The cooling belt 403 is fastened to the mold by moving the belt ring 406 downward. At the same time, the fastening of the cooling belt 403 will lift the mold onto the second rail 203, thereby releasing the blocking of the mold by the blocking pad 205. The motor 402 is started to drive the refrigeration box 401 to rotate, and then drive the mold to rotate. At the same time, the pump body 301 of the spray mechanism 3 is started to extract the coolant inside the main cylinder 101 to spray the mold through the nozzle 303. On the other hand, the rotation of the mold itself drives the air flow to cool down, thereby increasing the cooling speed of the device.

[0035] The stirring mechanism 5 rotates synchronously with the rotating mechanism 4 through the buckling of the second buckle 502 and the first buckle 405, thereby driving the stirring fan 509 to stir in the coolant, stirring and cooling the sprayed cooling water, increasing the cooling speed of the cooling water, and assisting in improving the cooling effect of the cooling water circulation.

[0036] After the mold is cooled, the belt ring 406 is started to move so that the cooling belt 403 loosens the mold, and the mold is punched out of the rotating mechanism 4 through the nozzle 303, and flipped onto the first rail 201. Through the inclined setting of the first rail 201 and the opening of the first notch 202 on the first rail 201, the cooled mold is flipped from the first notch 202 to the air bag 107 in the receiving tube 106, thereby completing the automatic unloading of the device and improving the automation of the device.

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

Claims

1. A cooling device for metal sheet casting, comprising a main cylinder mechanism (1), wherein the main cylinder mechanism (1) comprises a processing cylinder assembly and a receiving cylinder assembly; A cooling assembly is provided inside the processing cylinder assembly, and the cooling assembly comprises a spray mechanism (3) and a rotating mechanism (4); Features: The rotating mechanism (4) comprises a refrigeration box (401), a motor (402) is fixedly mounted on the upper side of the refrigeration box (401), and a cooling belt assembly is arranged on the lower side of the refrigeration box (401); The cooling belt assembly comprises a cooling belt (403), both ends of the cooling belt (403) are fixedly connected to a refrigeration box (401), cooling pipes (404) arranged in sequence are embedded through the interior of the cooling belt (403), both ends of the cooling pipes (404) are fixedly connected to the refrigeration box (401), and water pumps are installed at different ends of adjacent cooling pipes (404); The cooling belt assembly also includes a belt ring (406), a cylinder (407) is fixedly mounted on the upper side of the belt ring (406), and the fixed end of the cylinder (407) is correspondingly embedded in the refrigeration box (401), and belt grooves (408) adapted to insert the cooling belt (403) are respectively penetrated on both sides of the surface of the belt ring (406), and a blocking column (409) is fixedly connected to the middle of the lower surface of the belt ring (406), the lower end of the blocking column (409) is smooth, and a blocking disk (410) is fixedly sleeved on the outer side of the blocking column (409); A channel mechanism (2) for conveying the mold is provided on the side of the rotating mechanism (4) away from the spraying mechanism (3).

2. A cooling device for metal sheet casting according to claim 1, characterized in that: The processing cylinder assembly comprises a main cylinder (101) containing cooling liquid inside, an inclined ramp (102) is provided on one side of the upper end surface of the main cylinder (101), and a grid plate (103) parallel to the ramp (102) is fixedly connected to the inner wall of one side of the upper end of the main cylinder (101); The upper end of the main cylinder (101) is fixedly covered with a cover (104), and a through hole (105) is formed through the side wall of the cover (104); The material receiving barrel assembly is docked with the processing barrel assembly from the side where the inclined platform (102) is located; The receiving barrel assembly comprises a receiving barrel (106) fixedly connected to the main barrel (101), and an air bag (107) is fixedly connected to the lower inner wall of the receiving barrel (106).

3. A cooling device for metal sheet casting according to claim 2, characterized in that: The fixed end of the motor (402) is fixedly connected to the upper inner wall of the cover (104); A first buckle ring (405) is fixedly connected to the middle portion of the lower side of the cooling belt (403).

4. A cooling device for metal sheet casting according to claim 2, characterized in that: The spray mechanism (3) is away from the opening (105), and comprises a pump body (301) fixedly connected to the lower inner wall of the main cylinder (101), a pump pipe (302) fixedly connected to the upper side of the pump body (301), and a spray head (303) facing the cooling zone (403) fixedly connected to the upper end of the pump pipe (302).

5. A cooling device for metal sheet casting according to claim 3, characterized in that: The channel mechanism (2) comprises two track assemblies overlapped on the inclined platform (102), each track assembly comprises a first rail (201) parallel to the inclined platform (102), and one end of the first rail (201) is fixedly connected to a horizontal second rail (203); A first notch (202) is provided on the side of the first rail (201), and the first notches (202) of the two rail assemblies are staggered in position; A second notch (204) corresponding to the cooling belt (403) is provided on the upper side of the second rail (203); a stopper (205) for resisting a mold is fixedly connected to the upper side of one end of the second rail (203) away from the first rail (201); The other ends of the first rails (201) of the two track assemblies are commonly fixedly connected to a fixed block (206), and the fixed block (206) is fixedly connected to the connecting tube (106).

6. A cooling device for metal sheet casting according to claim 5, characterized in that: A trolley assembly is commonly provided on the two track assemblies, and the trolley assembly comprises a sliding plate (207) that fits the track assembly, a clamping plate (208) is fixedly connected to the upper surface of the sliding plate (207), and sliding feet (209) that slide and engage the track assembly are respectively fixedly connected to both ends of the lower surface of the sliding plate (207).

7. A cooling device for metal sheet casting according to claim 6, characterized in that: A stirring mechanism (5) for stirring is provided below the rotating mechanism (4), the stirring mechanism (5) comprising a connecting column (501), the upper end of the connecting column (501) is inserted between the two track assemblies and fixedly connected with a second buckle (502), the second buckle (502) being buckled with the first buckle (405); An inserting tube (503) is inserted into the lower end of the connecting column (501), and a spring (504) is fixedly connected between the connecting column (501) and the inserting tube (503); The lower end of the insert cylinder (503) is fixedly connected to a shaft column (505), the lower end of the shaft column (505) is fixedly connected to a stirring fan (509), and the lower end of the stirring fan (509) is movably connected to the lower inner wall of the main cylinder (101) via a bearing; A transverse column groove (506) is formed through the surface of the shaft column (505), a U-shaped insertion rod (507) is slidably inserted in the column groove (506), and connecting rods (508) are fixedly connected to both ends of the insertion rod (507), and one end of the connecting rod (508) away from the insertion rod (507) is fixedly connected to the connecting column (501).

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