A stirring device for food processing

Abstract

The utility model relates to food processing technical field, concretely is a kind of stirring device for food processing. It includes stirring box, hollow pipe, scraping device and second driving device. Hollow pipe rotation is installed in the inside of stirring box, and hollow pipe outer periphery is slidably installed with sliding sleeve along vertical direction, and stirring frame is connected on sliding sleeve, and first driving device for driving hollow pipe rotation and sliding sleeve reciprocating movement is installed on stirring box;Scraping device includes vertical scraping rod, horizontal scraping rod and bottom pivot;Second driving device is installed at the bottom end of stirring box for driving bottom pivot to lift.This technical scheme improves the scraping structure, so that vertical scraping rod and horizontal scraping rod only contact with the inner wall of stirring box during the short period of discharging, thereby avoiding the additional power loss and wear caused by the long-term contact of traditional scraping rod with the inner wall, prolonging the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of food processing technology, and in particular to a stirring device for food processing. Background Technology

[0002] In the food processing industry, mixing devices are a commonly used type of equipment. Their main function is to thoroughly mix various food ingredients to meet the process requirements of food production.

[0003] To keep the inner wall of the mixing tank clean, some mixing devices are equipped with scraper rods that are in constant contact with the inner wall to remove residual material during mixing. However, this method increases power consumption because the friction between the scraper rod and the inner wall consumes additional energy; furthermore, long-term friction leads to wear on both the scraper rod and the inner wall of the mixing tank, shortening the equipment's lifespan and increasing maintenance costs. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a stirring device for food processing.

[0005] The technical solution of this utility model is a stirring device for food processing, comprising:

[0006] The mixing tank has a support frame at the bottom, and the upper and lower ends of the mixing tank are respectively connected to the feed hopper and the discharge pipe.

[0007] A hollow tube is rotatably installed inside the mixing box. A sliding sleeve is slidably installed on the outer circumference of the hollow tube in the vertical direction. A mixing frame is connected to the sliding sleeve. A first driving device is installed on the mixing box to drive the hollow tube to rotate and the sliding sleeve to move up and down reciprocally.

[0008] The scraping device includes a vertical scraper, a horizontal scraper, and a bottom rotating shaft. The vertical scraper is vertically installed on one side inside the mixing tank. The bottom rotating shaft is radially located at the bottom of the mixing tank. The bottom rotating shaft movably passes through the mixing tank and the bottom of the hollow tube, and is slidably connected to the hollow tube in the vertical direction. The horizontal scraper is connected to the bottom rotating shaft. An elastic component is connected between the vertical scraper and the hollow tube. The elastic component includes a movable rod, a hemispherical block, and a second spring. The movable rod movably passes through the side wall of the hollow tube. The inner and outer ends of the movable rod are connected to the hemispherical block and the vertical scraper, respectively. The second spring is sleeved and installed on the inner end of the movable rod. A cone is provided on the bottom rotating shaft.

[0009] A second drive unit installed at the bottom of the mixing tank to drive the bottom rotating shaft to rise and fall.

[0010] Preferably, the first driving device includes a first servo motor, a worm gear, a rotating shaft, a worm wheel, a rectangular slide frame, a movable shaft, and a turntable. The first servo motor is installed above the mixing tank, the worm gear is connected to the output shaft of the first servo motor, the rotating shaft is connected to the hollow tube, the worm wheel is installed on the rotating shaft and meshes with the worm gear, the turntable is installed at the end of the worm gear, the movable shaft is located at the edge of the turntable, a rotating ring is rotatably installed on the outer circumference of the slide sleeve, a vertical rod that movably passes through the top of the mixing tank is connected to the rotating ring, the upper end of the vertical rod is connected to the rectangular slide frame, and the movable shaft is movably located inside the sliding hole of the rectangular slide frame.

[0011] Preferably, the mixing tank is provided with an outer cover, the first servo motor is mounted on the outer cover, and the first drive device, except for the first servo motor, has multiple other structures located inside the outer cover.

[0012] Preferably, the second driving device includes a second servo motor, a cam, a lifting plate, and an elastic reset assembly. The second servo motor is mounted on the feeding pipe to drive the cam to rotate. The lifting plate is rotatably mounted on the bottom end of the bottom rotating shaft. The guide rod is connected to the bottom end of the mixing tank and moves through the lifting plate. The limiting block is located at the bottom end of the guide rod, and the first spring is sleeved on the lower part of the guide rod.

[0013] Preferably, a butterfly valve is installed on the feed pipe to realize its opening and closing. The valve plate of the butterfly valve is connected to the output shaft of the second servo motor, and the cam is connected to the valve plate shaft of the butterfly valve.

[0014] Preferably, a first sealing ring is installed on the inner side of the hollow tube to seal the gap between its bottom end and the bottom rotating shaft; a second sealing ring is installed on the bottom end of the mixing tank to seal the gap between it and the bottom rotating shaft.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] 1. The hollow tube is driven to rotate by the first driving device and the sliding sleeve moves up and down reciprocally, so that the mixing rack can also rotate horizontally during the lifting process. The bottom rotating shaft drives the vertical scraper and the horizontal scraper to rotate, thereby greatly improving the mixing range and enhancing the mixing effect of food raw materials.

[0017] 2. The improved scraping structure in this technical solution ensures that the vertical and horizontal scrapers only contact the inner wall of the mixing tank during the brief period of material discharge, thereby avoiding the additional power loss and wear caused by the long-term contact between the traditional scraper and the inner wall, and extending the service life of the equipment. Attached Figure Description

[0018] Figure 1 and Figure 2 All of these are schematic diagrams of the structure of this utility model.

[0019] Figure 3This is a schematic diagram of the structure of the outer cover after disassembly in this utility model.

[0020] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0021] Figure 5 This is a cross-sectional view of the hollow tube in this utility model.

[0022] Figure 6 for Figure 2 A magnified schematic diagram of the structure at point A.

[0023] Figure 7 for Figure 5 A magnified schematic diagram of the structure at point B.

[0024] Reference numerals in the attached drawings: 1. Mixing tank; 2. Support frame; 3. Feed pipe; 4. Hollow pipe; 5. Sliding sleeve; 6. Rotary ring; 7. Outer cover; 8. First servo motor; 9. Movable rod; 10. Vertical scraper; 11. Horizontal scraper; 12. Mixing frame; 13. Control panel; 14. Feed hopper; 15. Second servo motor; 16. Worm gear; 17. Rotating shaft; 18. Worm wheel; 19. Rectangular sliding frame; 20. Movable shaft; 21. Bottom rotating shaft; 23. Cam; 24. Guide rod; 25. Lifting plate; 26. First spring; 27. Limiting block; 28. Cone; 29. ​​Hemispherical block; 30. Second spring; 31. Turntable; 32. Vertical rod. Detailed Implementation

[0025] Example 1

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 7 As shown in the figure, the food processing stirring device proposed in this embodiment includes a stirring box 1, a hollow tube 4, a scraping device and a second driving device.

[0027] A support frame 2 is provided at the bottom of the mixing tank 1, and the upper and lower ends of the mixing tank 1 are respectively connected to the feed hopper 14 and the discharge pipe 3; furthermore, a control panel 13 is also provided on the mixing tank 1. The control panel 13 adopts the combination of HMI (human-machine interface) + PLC (programmable logic controller). The HMI provides users with an intuitive and user-friendly operating interface, and various commands can be easily issued by touching the screen.

[0028] Hollow tube 4 is rotatably installed inside the mixing tank 1. A sliding sleeve 5 is slidably installed on the outer periphery of hollow tube 4 in the vertical direction. A stirring frame 12 is connected to the sliding sleeve 5. A first driving device is installed on the mixing tank 1 to drive the hollow tube 4 to rotate and the sliding sleeve 5 to move up and down reciprocally. The first driving device includes a first servo motor 8, a worm gear 16, a rotating shaft 17, a worm wheel 18, a rectangular sliding frame 19, a movable shaft 20, and a turntable 31. The first servo motor 8 is installed above the mixing tank 1. The worm gear 16 is connected to the output shaft of the first servo motor 8. The rotating shaft 17 is connected to the hollow tube 4. The worm wheel 18 is installed on the rotating shaft 17 and meshes with the worm gear 16. The turntable 31 is installed at the end of the worm gear 16. The movable shaft 20 is located at the edge of the turntable 31. A rotating ring 6 is rotatably installed on the outer periphery of the sliding sleeve 5. A vertical rod that movably passes through the top of the mixing tank 1 is connected to the rotating ring 6. 32. The upper end of the vertical rod 32 is connected to the rectangular slide frame 19. The movable shaft 20 is movably located inside the sliding hole of the rectangular slide frame 19. The first servo motor 8 is started to drive the worm gear 16 to rotate. The rotation of the worm gear 16 drives the worm wheel 18 and the turntable 31 to rotate. The rotation of the worm wheel 18 drives the rotating shaft 17 and the hollow tube 4 to rotate. The rotation of the turntable 31 drives the movable shaft 20 to rotate around its circumference. At this time, the movable shaft 20 moves inside the sliding hole of the rectangular slide frame 19, which can drive the rectangular slide frame 19 to move up and down. The rectangular slide frame 19 is connected to the rotating ring 6 with the vertical rod 32, so that the rectangular slide frame 19 can drive the rotating ring 6 to move. The rotating ring 6 drives the sliding sleeve 5 to move up and down. The mixing tank 1 is provided with an outer cover 7. The first servo motor 8 is installed on the outer cover 7. Except for the first servo motor 8, the other multiple structures of the first drive device are all located inside the outer cover 7.

[0029] The scraping device includes a vertical scraper 10, a horizontal scraper 11, and a bottom rotating shaft 21. The vertical scraper 10 is vertically arranged inside the mixing tank 1 on one side. The bottom rotating shaft 21 is radially arranged at the bottom end of the mixing tank 1. The bottom rotating shaft 21 movably passes through the mixing tank 1 and the bottom end of the hollow tube 4, and is slidably connected to the hollow tube 4 in the vertical direction. The horizontal scraper 11 is connected to the bottom rotating shaft 21. An elastic component is connected between the vertical scraper 10 and the hollow tube 4. The elastic component includes a movable rod 9, a hemispherical block 29, and a second spring 3. 0. The movable rod 9 moves through the side wall of the hollow tube 4. The inner and outer ends of the movable rod 9 are connected to the hemispherical block 29 and the vertical scraper 10, respectively. The second spring 30 is sleeved and installed on the inner end of the movable rod 9. A cone 28 is provided on the bottom rotating shaft 21. The second drive device is installed at the bottom of the mixing tank 1 to drive the bottom rotating shaft 21 to rise and fall. A first sealing ring is installed on the inner side of the hollow tube 4 to seal the gap between its bottom end and the bottom rotating shaft 21. A second sealing ring is installed at the bottom end of the mixing tank 1 to seal the gap between it and the bottom rotating shaft 21.

[0030] The working principle of this technical solution is as follows:

[0031] Multiple food ingredients to be mixed are sequentially fed into the mixing chamber 1 through the feed hopper 14. The hollow tube 4 is driven to rotate and the sliding sleeve 5 moves up and down reciprocally by the first driving device. Since the sliding sleeve 5 is vertically slidably installed on the outer periphery of the hollow tube 4, the hollow tube 4 drives the sliding sleeve 5 to rotate during horizontal rotation. This allows the mixing rack 12 to rotate horizontally during lifting and lowering, thereby increasing the mixing range of the mixing rack 12. Since the bottom rotating shaft 21 is slidably connected to the hollow tube 4 in the vertical direction, the rotation of the hollow tube 4 drives the bottom rotating shaft 21 to rotate horizontally. The rotation of the bottom rotating shaft 21 drives the movable rod 9, the vertical scraper 10 and the horizontal scraper 11 to rotate, thereby further increasing the mixing range of the device and enhancing the mixing effect.

[0032] During material discharge, the second servo motor 15 drives the cam 23 to rotate, causing the lifting plate 25 to move to its bottom limit position. Initially, the lifting plate 25 is at its upper limit position, in which state both the horizontal scraper 11 and the vertical scraper 10 are separated from the inner wall of the mixing tank 1. The downward movement of the lifting plate 25 drives the bottom rotating shaft 21 to move, which in turn drives the cone 28 and the horizontal scraper 11 to move, so that the horizontal scraper 11 just contacts the bottom of the inner wall of the mixing tank 1. The downward movement of the cone 28 causes its inclined surface to press against the hemispherical block 29, forcing the hemispherical block 29 to move towards the adjacent center. The hollow tube 4 moves along one side of its inner wall, causing the hemispherical block 29 to move and drive the movable rod 9 to move, so that the vertical scraper 10 can just contact the inner wall of the mixing tank 1. In this state, the drive to the hollow tube 4 is maintained. During the rotation, the vertical scraper 10 and the horizontal scraper 11 can scrape off the residual material on the inner wall and bottom wall of the mixing tank 1, respectively. Compared with the traditional method of the scraper being in contact with the inner wall of the mixing tank for a long time, this technical solution improves the scraping structure, so that the vertical scraper 10 and the horizontal scraper 11 only maintain contact with the inside of the mixing tank 1 during the short period of material discharge, thereby greatly reducing power loss and wear.

[0033] Example 2

[0034] like Figure 2 and Figure 6 As shown, the food processing stirring device proposed in this embodiment, compared with the first embodiment, includes a second driving device including a second servo motor 15, a cam 23, a lifting plate 25 and an elastic reset assembly. The second servo motor 15 is installed on the feeding pipe 3 to drive the cam 23 to rotate. The lifting plate 25 is rotatably installed at the bottom end of the bottom rotating shaft 21. The guide rod 24 is connected to the bottom end of the mixing box 1 and moves through the lifting plate 25. The limiting block 27 is provided at the bottom end of the guide rod 24. The first spring 26 is sleeved on the lower part of the guide rod 24.

[0035] A butterfly valve (not shown) is installed on the feed pipe 3 to realize its opening and closing. It is installed inside the feed pipe 3. The valve plate of the butterfly valve is connected to the output shaft of the second servo motor 15, and the cam 23 is connected to the valve plate shaft of the butterfly valve.

[0036] In this embodiment, during material discharge, the second servo motor 15 drives the valve plate to rotate and open. At this time, the valve plate's rotating shaft drives the cam 23 to rotate, realizing the linkage between the valve plate and the cam 23. After the valve plate is opened to the maximum angle, the cam 23 presses the lifting plate 25 to move downward to the limit position, thereby enabling the automatic start of scraping work during the material discharge process.

[0037] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A stirring device for food processing, characterized in that, include: A mixing tank (1) is provided with a support frame (2) at the bottom end of the mixing tank (1). The upper and lower ends of the mixing tank (1) are respectively connected to a feed hopper (14) and a discharge pipe (3). Hollow tube (4) is rotatably installed on the inner side of the mixing box (1). A sliding sleeve (5) is slidably installed on the outer periphery of the hollow tube (4) in the vertical direction. A stirring frame (12) is connected to the sliding sleeve (5). A first driving device for driving the hollow tube (4) to rotate and the sliding sleeve (5) to move up and down is installed on the mixing box (1). The scraping device includes a vertical scraper (10), a horizontal scraper (11), and a bottom rotating shaft (21). The vertical scraper (10) is vertically installed on one side inside the mixing tank (1). The bottom rotating shaft (21) is radially installed at the bottom of the mixing tank (1) inside the mixing tank (1). The bottom rotating shaft (21) movably passes through the mixing tank (1) and the bottom of the hollow tube (4), and the bottom rotating shaft (21) is slidably connected to the hollow tube (4) in the vertical direction. The horizontal scraper (11) is connected to the bottom... A rotating shaft (21) is connected, and an elastic component is connected between the vertical scraper (10) and the hollow tube (4). The elastic component includes a movable rod (9), a hemispherical block (29), and a second spring (30). The movable rod (9) moves through the side wall of the hollow tube (4). The inner and outer ends of the movable rod (9) are connected to the hemispherical block (29) and the vertical scraper (10) respectively. The second spring (30) is sleeved and installed on the inner end of the movable rod (9). A cone (28) is provided on the bottom rotating shaft (21). A second drive device installed at the bottom of the mixing tank (1) to drive the bottom rotating shaft (21) to rise and fall.

2. The mixing device for food processing according to claim 1, characterized in that, The first driving device includes a first servo motor (8), a worm (16), a rotating shaft (17), a worm wheel (18), a rectangular slide frame (19), a movable shaft (20), and a turntable (31). The first servo motor (8) is installed above the mixing tank (1). The worm (16) is connected to the output shaft of the first servo motor (8). The rotating shaft (17) is connected to the hollow tube (4). The worm wheel (18) is installed on the rotating shaft (17) and meshes with the worm (16). The turntable (31) is installed at the end of the worm (16). The movable shaft (20) is located on the edge of the turntable (31). A rotating ring (6) is rotatably installed on the outer periphery of the sliding sleeve (5). A vertical rod (32) that movably penetrates the top of the mixing tank (1) is connected to the rotating ring (6). The upper end of the vertical rod (32) is connected to the rectangular slide frame (19). The movable shaft (20) is movably located inside the sliding hole of the rectangular slide frame (19).

3. The mixing device for food processing according to claim 2, characterized in that, The mixing tank (1) is provided with an outer cover (7), the first servo motor (8) is installed on the outer cover (7), and the first drive device, except for the first servo motor (8), has multiple other structures located inside the outer cover (7).

4. The mixing device for food processing according to claim 1, characterized in that, The second drive device includes a second servo motor (15), a cam (23), a lifting plate (25), and an elastic reset assembly. The second servo motor (15) is mounted on the feed pipe (3) to drive the cam (23) to rotate. The lifting plate (25) is rotatably mounted on the bottom end of the bottom rotating shaft (21). The guide rod (24) is connected to the bottom end of the mixing tank (1) and moves through the lifting plate (25). The limiting block (27) is located at the bottom end of the guide rod (24). The first spring (26) is sleeved on the lower part of the guide rod (24).

5. A mixing device for food processing according to claim 4, characterized in that, A butterfly valve is installed on the feed pipe (3) to realize its opening and closing. The valve plate of the butterfly valve is connected to the output shaft of the second servo motor (15), and the cam (23) is connected to the valve plate shaft of the butterfly valve.

6. The mixing device for food processing according to claim 1, characterized in that, The hollow tube (4) is fitted with a first sealing ring for sealing the gap between its bottom end and the bottom rotating shaft (21); the bottom end of the mixing tank (1) is fitted with a second sealing ring for sealing the gap between it and the bottom rotating shaft (21).

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