A mixing device for jam processing
By using a combination of stirring blades with filter holes and an electric extrusion rod in the jam processing device, the problems of uneven mixing and difficulty in filtering large pieces of fruit pulp are solved, achieving uniform mixing and efficient cleaning of the jam.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI HI ROAD FOOD TECHNOLOGY CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-03
Smart Images

Figure CN224442757U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of jam processing, and more particularly to a mixing apparatus for jam processing. Background Technology
[0002] Jam is a semi-solid food made primarily from fresh or frozen fruit through processes such as pretreatment, sugaring, and heating to concentrate. Jam mixing equipment is automated or semi-automated equipment specifically designed for jam production. It mainly mixes fruit raw materials, sugar, acidulants, thickeners, and other auxiliary materials in a preset ratio and processes them through heating, stirring, and other techniques to produce jam products.
[0003] Traditional jam processing and mixing equipment typically uses anchor or frame-type stirring paddles for stirring. This type of stirring method has low stirring efficiency, especially when processing high-viscosity jams. The material dispersion effect is poor, and blind spots are easily formed, resulting in uneven mixing. It is also difficult to filter the pulp while stirring, resulting in an excessively high proportion of coarse particles in the jam, which affects the smooth taste of the jam. It is also difficult to collect large pulp residues. Utility Model Content
[0004] To improve the problems of uneven mixing of jam and difficulty in filtering and collecting large pieces of fruit pulp, this application provides a mixing device for jam processing.
[0005] The jam-making blending device provided in this application adopts the following technical solution:
[0006] A mixing device for jam processing includes a material bucket and a bucket lid fixed to the top of the material bucket. A rotating cover is rotatably disposed in the middle of the bucket lid, and a stirring mechanism for mixing the materials inside the material bucket is rotatably disposed in the middle of the rotating cover. A motor for providing driving force to the stirring mechanism is fixed to the top of the stirring mechanism. The stirring mechanism includes a stirring rod rotatably disposed through the middle of the rotating cover and stirring blades symmetrically fixed to the lower end of the stirring rod. A collection bucket is fixed to the lower end of the stirring blades. A connecting block is slidably sleeved on the upper end of the stirring rod. Fixed sleeve rods are fixed on both sides of the connecting block. A pressing rod is fixedly disposed through the opposite side of the two fixed sleeve rods. A pressing plate is fixed to the bottom end of the pressing rod.
[0007] By adopting the above technical solution, the material bucket, bucket cover and rotating cover form a closed storage space, providing a place for material mixing; the stirring mechanism is driven by a motor, the stirring rod drives the stirring blade to mix the materials, the collection bucket assists in collecting or guiding the materials, and the connecting block, fixed sleeve rod, extrusion rod and extrusion plate can cooperate to extrude the materials in the collection bucket.
[0008] Preferably, the top end of the stirring rod is fixed to the output end of the motor, and the stirring blade and the surface of the collecting bucket are evenly distributed with several filter holes to intercept large fruit pulp particles.
[0009] By adopting the above technical solution, the motor drives the stirring rod and stirring blade to rotate and mix the materials. At the same time, the uniformly distributed filter holes on the surface of the stirring blade and the collection bucket can intercept large pieces of fruit pulp.
[0010] Preferably, the upper end of the stirring rod is provided with a groove that matches the shape of the connecting block, and the connecting block slides in the groove.
[0011] By adopting the above technical solution, the groove at the upper end of the stirring rod is adapted to the shape of the connecting block, so that the connecting block can slide in the groove, which facilitates the adjustment of the position of the connecting block to drive the extrusion rod to slide longitudinally.
[0012] Preferably, a fixing rod is fixedly provided at the top of the motor, a rotating plate is rotatably sleeved at the middle of the fixing rod, and a top plate is fixedly provided at the top of the fixing rod.
[0013] By adopting the above technical solution, the fixing rod at the top of the motor provides support, the rotating plate in the middle can rotate around the fixing rod, and the top plate at the top keeps the fixing rod stable and fixed.
[0014] Preferably, the two extrusion rods are symmetrically and movably inserted through the outer ring of the rotating plate, and the top of the rotating plate is symmetrically fixed with an electric telescopic rod whose bottom end is fixed to the top end of the extrusion rod at the two extrusion rods.
[0015] By adopting the above technical solution, the extrusion rod symmetrically passes through the outer ring of the rotating plate and can rotate with the rotating plate and move up and down. The electric telescopic rod symmetrically set at the top of the rotating plate drives the extrusion rod to rise and fall, thereby achieving precise control of the position of the extrusion rod.
[0016] Preferably, the bottom circumference of the rotating plate is fixed with a plurality of fixing rods whose bottom ends are fixed to the top end of the rotating cover.
[0017] By adopting the above technical solution, multiple fixing rods are arranged around the bottom circumference of the rotating plate to form a linkage structure between the rotating plate and the rotating cover, ensuring that the rotating plate can drive the rotating cover to rotate synchronously when it rotates.
[0018] Preferably, the bottom outer ring of the top plate is fixedly provided with a plurality of fixing posts whose bottom ends are fixed to the top outer ring of the bucket lid.
[0019] By adopting the above technical solution, multiple fixing posts on the bottom outer ring of the top plate are firmly connected to the top outer ring of the bucket lid, which enhances the stability of the overall structure and keeps the top plate, fixing posts, motor and other components stable and fixed.
[0020] Preferably, a sealing plug is movably inserted into one side of the top of the material bucket, a Y-shaped discharge pipe is fixedly provided through the bottom of the material bucket, a valve is fixedly sleeved at the lower end of the Y-shaped discharge pipe, and multiple support columns are fixedly provided around the outer circumference of the bottom of the material bucket.
[0021] By adopting the above technical solution, the sealing plug on one side of the top of the material bucket can be flexibly inserted and removed to control the material entering and exiting or to seal the material bucket; the Y-shaped discharge pipe at the bottom, together with the valve, discharges the material as needed and controls the flow rate; the multiple support columns on the outer ring at the bottom play the role of stabilizing and supporting the material bucket.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. By starting the motor to drive the stirring blades and the collection bucket to rotate, the uniformly distributed filter holes on the surface of the stirring blades drive the high-viscosity material in the bucket to rotate at high speed. The filter holes dynamically filter the material as it rotates, intercepting large pieces of fruit pulp and guiding them into the collection bucket. This achieves an integrated operation of stirring, dispersing and filtering, avoiding blind spots in the stirring process, ensuring that the material is mixed evenly, and reducing the proportion of coarse particles in the jam, thus improving the smoothness of the taste.
[0024] 2. By activating the electric telescopic rod, the extrusion rod is driven to move the extrusion plate back and forth longitudinally along the stirring rod. The extrusion plate adheres to the inner wall of the collection tank and applies pressure to the intercepted large fruit pulp particles, squeezing the loose residue into a cake shape. At the same time, the residual juice is squeezed out and discharged through the Y-shaped discharge pipe, realizing centralized treatment of residue, reducing the difficulty of manual cleaning, and improving production efficiency.
[0025] 3. By injecting cleaning solution into the material tank and starting the motor to drive the stirring blades and the collection tank to rotate, centrifugal force and solution flow are used to flush the inner wall of the material tank, the surface of the stirring blades and the filter holes of residual materials; the electric telescopic rod is opened to make the extrusion plate move back and forth, pressing and washing the attached residue against the inner wall of the collection tank, ensuring that there are no dead corners in the equipment and extending the service life of the equipment. Attached Figure Description
[0026] Figure 1 This is a frontal axonometric view of the present application;
[0027] Figure 2 This is a schematic diagram of the right axial view of this application;
[0028] Figure 3 This is a partial structural cross-sectional view of this application;
[0029] Figure 4 This is a schematic diagram of the stirring mechanism structure of this application;
[0030] Figure 5 This is an exploded view of the stirring mechanism structure of this application;
[0031] Figure 6This is a cross-sectional view of the stirring rod portion of this application;
[0032] Figure 7 This is a schematic diagram of the bucket lid structure of this application;
[0033] Figure 8 This is a schematic diagram of the top plate structure of this application.
[0034] Attached reference numerals: 1. Material bucket; 2. Mixing mechanism; 3. Bucket lid; 4. Rotating lid; 5. Motor; 6. Rotating plate; 7. Electric telescopic rod; 8. Fixed rod one; 9. Top plate; 10. Fixed rod two;
[0035] 11. Fixed column; 12. Sealing plug; 13. Y-shaped discharge pipe; 14. Valve; 15. Support column; 16. Feed inlet; 17. Circular hole one; 18. Circular hole two; 19. Circular hole three; 20. Circular hole four;
[0036] 201. Stirring rod; 202. Stirring blade; 203. Collection bucket; 204. Extrusion plate; 205. Extrusion rod; 206. Fixing sleeve rod; 207. Filter hole; 208. Slide groove; 209. Circular hole five; 210. Connecting block. Detailed Implementation
[0037] The following is in conjunction with the appendix Figure 1 - Figure 8 This application will be described in further detail.
[0038] This application discloses a mixing apparatus for jam processing.
[0039] Reference Figure 1 - Figure 3 , Figure 7 , Figure 8 A jam-making mixing device includes a material barrel 1 and a barrel cover 3 fixed to the top of the material barrel 1. A feed inlet 16 is provided on one side of the top of the material barrel 1. The feed inlet 16 is used to put in the material to be mixed and to introduce a cleaning solution to clean the inside of the device after the material is processed. A sealing plug 12 is provided inside the feed inlet 16 to seal the feed inlet 16. The barrel cover 3 is used to seal the top of the material barrel 1. A rotating cover 4 is rotatably provided in the middle of the barrel cover 3. A circular hole 17 is provided in the middle of the rotating cover 4. Circular holes 18 are symmetrically provided on both sides of the top of the rotating cover 4. A stirring mechanism 2 is rotatably provided in the middle of the rotating cover 4. The stirring mechanism 2 is located inside the material barrel 1 and is used to stir and mix the material inside the material barrel 1. A motor 5 is fixed to the top of the stirring mechanism 2 to provide driving force for the stirring mechanism 2. A fixing rod 8 is fixed to the top of the motor 5, and the top of the motor 5 is fixed to the bottom of the fixing rod 8.
[0040] Before use, place the device on the floor of the jam production workshop. Install the rotating cover 4 in the middle of the barrel cover 3 and the stirring mechanism 2 in the middle of the rotating cover 4. Fix the barrel cover 3 and the rotating cover 4 to the top of the material barrel 1, so that the stirring mechanism 2 is placed inside the material barrel 1. Fix the motor 5 to the top of the stirring rod 201, so that the bottom end of the fixing rod 1 8 is fixedly connected to the top end of the motor 5. Fit the rotating plate 6 in the middle of the fixing rod 1 8, so that the two circular holes 4 20 on the outer ring of the rotating plate 6 correspond to the two circular holes 2 18 on the top of the rotating cover 4. Fix the electric telescopic rod 7 symmetrically to the top of the rotating plate 6, so that the fixing rod 2 10 is fixed between the rotating cover 4 and the rotating plate 6. Install the fixing column 11 between the outer ring of the barrel cover 3 and the top plate 9. Finally, fix the Y-shaped discharge pipe 13 through the bottom of the material barrel 1, and install the valve 14 at the lower end of the Y-shaped discharge pipe 13.
[0041] A rotating plate 6 is rotatably mounted on the middle of the fixed rod 8. A circular hole 3 19 is opened in the middle of the rotating plate 6. Circular holes 4 20 are symmetrically opened on the outer ring of the rotating plate 6. The two circular holes 4 20 are located directly above the two circular holes 2 18, and the diameter of the circular holes 4 20 is the same as that of the circular holes 2 18. The middle of the fixed rod 8 passes through the circular hole 3 19. A top plate 9 is fixed at the top of the fixed rod 8. The total length of the fixed rod 8 is the vertical distance from the bottom of the top plate 9 to the top of the motor 5. The middle of the bottom of the top plate 9 is fixed to the top of the fixed rod 8. An electric telescopic rod 7 is symmetrically fixed at the top of the rotating plate 6 at the two circular holes 4 20. Multiple fixed rods 2 10 are fixed around the bottom circumference of the rotating plate 6. The bottom of the fixed rods 2 10 is connected to the outer ring of the top of the rotating cover 4. The total length of the fixed rods 2 10 is the vertical distance from the bottom of the rotating plate 6 to the outer ring of the top of the rotating cover 4.
[0042] In use, open the sealing plug 12 and feed the material into the inside of the material bucket 1 through the feed inlet 16. Turn on the motor 5 to drive the stirring mechanism 2 to rotate, which in turn drives the rotating cover 4 and the rotating plate 6 to rotate synchronously. The continuous rotation of the stirring rod 201 and the stirring blade 202 mixes the material. At the same time, the stirring blade 202 filters and intercepts large pieces of fruit pulp. After the mixing is completed, open the Y-shaped discharge pipe 13 through the valve 14 to discharge the jam. At this time, the fruit pulp intercepted by the stirring blade 202 flows into the collection bucket 203.
[0043] Multiple fixing posts 11 are fixedly installed around the bottom outer ring of the top plate 9. The bottom ends of the fixing posts 11 are fixed to the top outer ring of the bucket lid 3. A Y-shaped discharge pipe 13 is fixedly installed through the bottom of the material bucket 1. The Y-shaped discharge pipe 13 is Y-shaped in overall shape and consists of two branch pipes and one main pipe (e.g., Figure 2As shown, the bottom of the material bucket 1 is symmetrically provided with round holes. The top ends of the two branch pipes of the Y-shaped discharge pipe 13 are fixedly connected to the two round holes respectively. The lower end of the main pipe of the Y-shaped discharge pipe 13 is fixedly fitted with a valve 14. The valve 14 is used to control the opening and closing of the Y-shaped discharge pipe 13 and the flow rate of the material inside the Y-shaped discharge pipe 13. Multiple support columns 15 are fixedly installed on the outer circumference of the bottom of the material bucket 1. The support columns 15 are used to support the entire equipment.
[0044] Activating the electric telescopic rod 7 causes the extrusion rod 205 to drive the extrusion plate 204 to move longitudinally back and forth along the stirring rod 201, so that the extrusion plate 204 extrudes the pulp inside the collection tank 203 into a cake, and squeezes out the juice and discharges it from the Y-shaped discharge pipe 13.
[0045] Reference Figure 4 - Figure 6 The stirring mechanism 2 includes a stirring rod 201 rotatably inserted through the center of the rotating cover 4 and stirring blades 202 symmetrically fixed at the lower end of the stirring rod 201. The upper end of the stirring rod 201 rotatably passes through a circular hole 17. The top end of the stirring rod 201 is fixed to the output end of the motor 5. The stirring blades 202 are C-shaped, and their curvature matches the curvature of the inner wall of the material container 1, ensuring no dead corners during stirring. The C-shaped structure effectively guides the material to gather towards the center, improving stirring efficiency. The bottom end of the stirring rod 201 rotates to the center of the inner bottom surface of the material container 1. A collection bucket 203 is fixed at the lower end of the stirring blades 202. The collection bucket 203 is cylindrical in shape (e.g., ...). Figure 4 As shown, the diameter of the collection bucket 203 is the same as the diameter of the filter hole 207, and it is used to collect the material intercepted by the stirring blade 202. Several filter holes 207 are evenly distributed on the surface of the stirring blade 202 and the collection bucket 203. The filter holes 207 are arranged in a regular circular honeycomb pattern with a hole spacing of 1 to 2 mm. The filter holes 207 filter and intercept the material as the stirring rod 201 rotates.
[0046] In use, the motor 5 is turned on to drive the stirring rod 201 to rotate, which in turn drives the stirring blade 202 and the collection bucket 203 to rotate synchronously. At this time, as the stirring rod 201 rotates, the filter hole 207 uses its regular circular honeycomb structure to efficiently filter the material. The pore size of 3-6mm can effectively intercept large particles larger than 6mm, while guiding the material that meets the particle size requirements smoothly into the collection bucket 203. Since the motor 5 is always stable with the top plate 9 and the bucket cover 3 through the fixing rod 8, and the bucket cover 3 is rotatably connected to the rotating cover 4, the movement of the extrusion rod 205, the extrusion plate 204, the rotating plate 6 and the electric telescopic rod 7 are consistent, so that the rotation of the stirring rod 201 drives the extrusion plate 204 and the extrusion rod 205 to rotate synchronously, and the material inside the upper part of the bucket 1 is stirred synchronously.
[0047] The upper end of the stirring rod 201 is provided with a groove 208, the shape of which is (e.g.) Figure 6 As shown), a connecting block 210 is slidably arranged inside the chute 208. The shape of the connecting block 210 perfectly matches the shape of the chute 208. Fixed sleeve rods 206 are symmetrically fixed on both sides of the connecting block 210. Circular holes 209 are opened on opposite sides of the two fixed sleeve rods 206. A squeezing rod 205 is fixedly installed inside the circular hole 209. A squeezing plate 204 is fixedly installed at the bottom end of the squeezing rod 205. The diameter of the squeezing plate 204 is the same as the inner diameter of the collection bucket 203. It is used to squeeze the fruit pulp residue collected inside the collection bucket 203, so that the material residue is squeezed into a cake shape, which is convenient for subsequent collection and cleaning. In the initial state, the squeezing plate 204 is located above the stirring blade 202 and the top of the squeezing plate 204 is in contact with the bottom of the bucket cover 3 and the rotating cover 4, and there is a 1-3mm gap between the squeezing plate 204 and the bottom of the bucket cover (3).
[0048] After stirring, the two electric telescopic rods 7 are activated simultaneously to drive the extrusion rod 205 to move longitudinally in the circular hole 4 20 and the circular hole 2 18, thereby driving the extrusion plate 204 to move downward, so that the extrusion plate 204 applies pressure to the fruit pulp residue collected in the collection bucket 203, and extrudes the loose residue into a cake shape. At the same time, the connecting block 210 is driven to slide stably in the slide groove 208, thereby causing the fixed sleeve rod 206 to reciprocate longitudinally.
[0049] The height of the chute 208 is the same as the distance from the bottom end of the extrusion plate 204 to the bottom surface of the collection bucket 203 from the initial state. The two extrusion rods 205 are respectively movably inserted through the two circular holes 20. The top ends of the two extrusion rods 205 are respectively fixed to the output ends of the two electric telescopic rods 7. After the two electric telescopic rods 7 are started, they drive the two extrusion rods 205 to slide longitudinally in the circular holes 20 and 18. The total length of the extrusion rods 205 is the sum of the vertical distance from the bottom end of the rotating plate 6 to the bottom surface of the collection bucket 203 and the stroke of the electric telescopic rods 7.
[0050] When the equipment needs cleaning, open the sealing plug 12 and inject the cleaning solution into the feed inlet 16. The solution enters the inside of the material tank 1 and covers the stirring blade 202, the collection tank 203, and the inner wall. Then, turn on the motor 5 to drive the stirring rod 201 to rotate, which in turn drives the stirring blade 202 and the collection tank 203 to rotate synchronously. The centrifugal force generated by the rotation and the flow of the solution flush the inner wall of the container, the surface of the stirring blade 202, and the residual material or residue in the filter holes 207. At the same time, the cleaning solution permeates and flows through the pores of the hexagonal filter holes 207 with a diameter of 3-6 mm, utilizing the regular discharge of the pores. The fluid channels formed by the columns deeply flush and clean the material or residue remaining on the surface and inside the pores of the filter structure. Activating the two electric telescopic rods 7 drives the squeezing rod 205 to move longitudinally back and forth, causing the squeezing plate 204 to move downwards into the collection tank 203. The bottom surface of the squeezing plate 204 adheres to the inner wall of the collection tank 203, squeezing and rinsing the attached residue. After rinsing, the motor 5 is turned off and the valve 14 is opened, allowing the wastewater in the material tank 1 to be completely discharged through the Y-shaped discharge pipe 13. For deep cleaning, the cleaning solution can be repeatedly injected and the above operations performed.
[0051] The implementation principle of the jam processing mixing device in this embodiment is as follows: When the device is in use, the material is fed into the material bucket 1 through the feed inlet 16 by opening the sealing plug 12. The motor 5 is started to drive the stirring mechanism to rotate, which drives the rotating cover 4 and the rotating plate 6 to rotate synchronously. The stirring blade 202 continuously stirs the mixture and intercepts large pieces of fruit pulp into the collection bucket 203. After stirring is completed, the jam is discharged through the Y-shaped discharge pipe 13. At this time, the intercepted fruit pulp is left in the collection bucket 203. Then, the electric telescopic rod 7 is started, which causes the extrusion rod 205 to drive the extrusion plate 204 to move longitudinally back and forth along the stirring rod 201, extruding the fruit pulp in the collection bucket 203 into a mixture. The mixture is in cake form, and the juice is squeezed out and discharged from the Y-shaped discharge pipe 13. During cleaning, the sealing plug 12 is opened and the cleaning solution is injected into the material tank 1 through the feed port 16, covering the stirring blade 202, the collection tank 203 and the inner wall. The motor 5 is started to drive the stirring blade 202 and the collection tank 203 to rotate, and the centrifugal force and solution flow are used to flush the residue in the inner wall of the material tank, the surface of the stirring blade 202 and the filter hole 207. At the same time, the electric telescopic rod 7 is opened to move the extrusion plate 204 to fit against the inner wall of the collection tank 203 to squeeze and wash the residue. The valve 14 is opened to discharge the wastewater through the Y-shaped discharge pipe 13. If deep cleaning is required, the cleaning solution can be injected again and the above operation can be performed.
[0052] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A mixing apparatus for jam processing, characterized in that: Includes a material bucket (1) and a bucket cover (3) fixed at the top of the material bucket (1). A rotating cover (4) is rotatably provided in the middle of the bucket cover (3). A stirring mechanism (2) for mixing the material inside the material bucket (1) is rotatably provided in the middle of the rotating cover (4). A motor (5) for providing driving force to the stirring mechanism (2) is fixed at the top of the stirring mechanism (2). The stirring mechanism (2) includes a stirring rod (201) rotatably disposed in the middle of the rotating cover (4) and stirring blades (202) symmetrically fixed at the lower end of the stirring rod (201). A collection bucket (203) is fixed at the lower end of the stirring blades (202). A connecting block (210) is slidably sleeved on the upper end of the stirring rod (201). Fixed sleeve rods (206) are fixed on both sides of the connecting block (210). A pressing rod (205) is fixedly disposed through the opposite side of the two fixed sleeve rods (206). A pressing plate (204) is fixed at the bottom end of the pressing rod (205).
2. The mixing apparatus for jam processing according to claim 1, characterized in that: The top of the stirring rod (201) is fixed to the output end of the motor (5), and the surface of the stirring blade (202) and the collecting bucket (203) is evenly distributed with a number of filter holes (207) to intercept large particles of fruit pulp.
3. The mixing apparatus for jam processing according to claim 1, characterized in that: The upper end of the stirring rod (201) is provided with a groove (208) that is adapted to the shape of the connecting block (210), and the connecting block (210) slides in the groove (208).
4. The mixing apparatus for jam processing according to claim 1, characterized in that: The top of the motor (5) is fixedly provided with a fixing rod (8), the middle of the fixing rod (8) is rotatably fitted with a rotating plate (6), and the top of the fixing rod (8) is fixedly provided with a top plate (9).
5. The mixing apparatus for jam processing according to claim 1, characterized in that: The two extrusion rods (205) are symmetrically and movably inserted through the outer ring of the rotating plate (6). The top of the rotating plate (6) is symmetrically fixed with an electric telescopic rod (7) whose bottom end is fixed to the top end of the extrusion rod (205) at the two extrusion rods (205).
6. The mixing apparatus for jam processing according to claim 4, characterized in that: The bottom circumference of the rotating plate (6) is fixed with a plurality of fixing rods (10) whose bottom ends are fixed to the top end of the rotating cover (4).
7. The mixing apparatus for jam processing according to claim 4, characterized in that: The bottom outer ring of the top plate (9) is fixed with a plurality of fixing posts (11) whose bottom ends are fixed to the top outer ring of the bucket lid (3).
8. The mixing apparatus for jam processing according to claim 1, characterized in that: A sealing plug (12) is movably inserted into one side of the top of the material bucket (1), a Y-shaped discharge pipe (13) is fixedly provided through the bottom of the material bucket (1), a valve (14) is fixedly sleeved on the lower end of the Y-shaped discharge pipe (13), and multiple support columns (15) are fixedly provided around the bottom of the material bucket (1).