A stuffing mixing device for reducing wall sticking and its usage method

Abstract

The present invention relates to the technical field of food processing, and particularly relates to a stuffing mixing device for reducing wall sticking and a using method thereof, including a mixing cylinder, and further including a scraping rod for scraping the stuffing on the inner wall of the mixing cylinder. A mixing rod for mixing the stuffing is arranged in the mixing cylinder, and the mixing rods are connected to the same driving shaft. The top end of the mixing cylinder is connected with a support frame, and the driving shaft is rotatably connected with the support frame. A first motor is connected to the support frame, and the first motor is used for driving the driving shaft to rotate. When the stuffing is poured into the mixing cylinder, the fixed cylinder and the mixing rods are driven to rotate by the first motor. Under the action of the mixing rods and the stirring rods, the stuffing can be stirred. During the lateral rotation of the stirring rods, due to the action of the guiding grooves, the stirring rods make a wavy swing, and synchronously drive the mixing rods to swing, thereby being able to accelerate the stirring speed of the stuffing.

Description

Technical Field

[0001] The invention relates to the technical field of food processing, and in particular to a stuffing mixing device capable of reducing wall sticking and a use method thereof. Background Art

[0002] Stuffing machine is a commonly used food processing equipment, mainly used to mix and stir various ingredients to make meat stuffing, vegetable stuffing and other foods. It is widely used in the catering industry, food processing industry and home kitchens.

[0003] For example, the Chinese patent publication number is CN221287621U, which is a stuffing mixing mechanism for reducing wall sticking. The arc-shaped scraper rod of the device is always in contact with the inner wall of the mixing drum. During the mixing process of the stuffing mixing device, the arc-shaped scraper rod is always in contact with the inner wall of the mixing drum. There will always be opposite forces between the two during the mixing process. After long-term use, there will be a gap between the arc-shaped scraper rod and the inner wall of the mixing drum, resulting in a poor scraping effect.

[0004] In view of the above problems, a stuffing mixing device and a method for using the device are proposed to reduce wall sticking. Summary of the invention

[0005] In order to solve the above problems, the embodiments of the present invention provide a stuffing mixing device and a method of use that can reduce wall sticking, thereby solving the problem in the background technology that the scraping effect of the existing scraping device will be poor after long-term use.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the present invention specifically adopts the following technical scheme: a stuffing mixing device for reducing wall sticking, comprising a mixing drum, and also comprising a scraping rod for scraping the stuffing on the inner wall of the mixing drum, wherein the mixing drum is provided with a stirring rod for mixing the stuffing, and the stirring rod is connected to the same driving shaft;

[0007] The top of the mixing drum is connected to a support frame, the driving shaft is rotatably connected to the support frame, and the support frame is connected to a first motor, which is used to drive the driving shaft to rotate;

[0008] The interior of the driving shaft is hollow, and a second motor is connected to the top of the driving shaft. A fixed cylinder is fixedly connected to the driving shaft, and an extension cylinder is inserted and connected to the fixed cylinder. One end of the extension cylinder close to the mixing drum is connected to the scraper rod. The second motor can drive the scraper rod to move toward the inner wall of the mixing drum and enable the scraper rod to abut against the inner wall of the mixing drum.

[0009] A mixing rod is rotatably connected to the fixed cylinder, and the mixing rod can swing in the filling during the rotation of the driving shaft.

[0010] Furthermore, the output end of the first motor is connected to a transmission frame, and the bottom end of the transmission frame is connected to the outer side wall of the driving shaft.

[0011] Further, the second motor is located inside the transmission frame. An output shaft is connected to the output end of the second motor and extends into the driving shaft. The inside of the fixed cylinder is hollow and communicates with the inside of the driving shaft;

[0012] A push shaft is rotatably connected inside the fixed cylinder. The push shaft is connected to the output shaft through bevel gears. When the output shaft rotates, the push shaft can be driven to rotate through the bevel gears.

[0013] Further, a moving groove is formed in the extension cylinder. One end of the push shaft is located in the moving groove in the initial state. A moving cavity is formed at the notch of the moving groove. A push block is slidably connected to the inner side wall of the moving cavity. The surface of the push block opposite to the moving groove is arranged in an arc shape;

[0014] External threads are provided on the outer side wall of the push shaft, and internal threads are provided on the surface of the push block opposite to the push shaft. The internal threads and the external threads are mutually adapted. When the scraping rod is not in contact with the inner side wall of the mixing cylinder, the internal threads and the external threads are meshed with each other.

[0015] Further, a return spring is provided between the push block and the moving cavity. A push rod is inserted through the extension cylinder. One end of the push rod is located in the moving cavity, and the other end is located outside the extension cylinder and approaches the scraping rod;

[0016] The push rod is connected to the push block through a transmission rod. The movement of the push rod will drive the push block to move towards the bottom of the moving cavity through the transmission rod;

[0017] An expansion rod is provided between the scraping rod and the extension cylinder. After the scraping rod contacts the inner side wall of the mixing cylinder, the push rod will be pushed.

[0018] Further, a guiding disc is fixedly connected to the support frame. The guiding disc is arranged outside the driving shaft. A guiding groove is formed at the bottom of the guiding disc. The guiding groove is arranged in a wavy shape along the arrangement direction of the guiding disc;

[0019] A reserved frame is slidably connected in the guiding groove. The top end of the stirring rod is slidably connected to the inner side wall of the reserved frame;

[0020] Sliding grooves are formed in the stirring rod. Sliding blocks are slidably connected in the sliding grooves. The bottom end of the stirring rod is rotatably connected to the sliding blocks. The stirring rod is rotatably connected to the driving shaft through a rotating shaft.

[0021] A method for using a stuffing mixing device for reducing wall sticking includes the following steps:

[0022] ① Put the stuffing into the mixing cylinder, and the height of the stuffing is not higher than the height of the fixed cylinder;

[0023] ② Then turn on the first motor, which will drive the driving shaft to rotate. When the driving shaft rotates, the stuffing is stirred by the stirring rod and the mixing rod. During the process of the stirring rod stirring the stuffing, the mixing rod and the stirring rod swing under the action of the guide groove to improve the stirring efficiency of the stuffing.

[0024] ③ When the stuffing is almost but not completely stirred, the second motor is turned on so that the scraping rod is in contact with the inner wall of the mixing cylinder. When the driving shaft continues to rotate at this time, the scraping rod will scrape the stuffing on the inner side wall of the mixing cylinder, so as to reduce the occurrence of the stuffing sticking to the wall.

[0025] The beneficial effects of the embodiments of the present invention are as follows:

[0026] 1. When the stuffing is poured into the mixing cylinder, the fixed cylinder and the stirring rod rotate under the drive of the first motor. Under the action of the stirring rod and the mixing rod, the stuffing can be stirred. During the process of the mixing rod rotating horizontally, due to the action of the guide groove, the mixing rod swings in a wavy shape, and synchronously drives the stirring rod to swing, thereby being able to accelerate the stirring speed of the stuffing.

[0027] 2. When the stuffing is almost stirred, the second motor is turned on. Under the action of the second motor, the output shaft rotates, and then drives the push shaft to rotate. Under the action of the external thread and the internal thread, the extension cylinder and the scraping rod can also move towards the inner side wall of the mixing cylinder. When the scraping rod is in contact with the inner side wall of the mixing cylinder, the stuffing on the side wall of the mixing cylinder is scraped, thereby being able to reduce the contact time between the scraping rod and the inner wall of the mixing cylinder, improve the service life of both, and also ensure better scraping effect.

[0028] 3. When the scraping rod moves towards the inner side wall of the mixing cylinder and is in contact with it, even if the push shaft continues to rotate, the scraping rod will not continue to move, so as to be able to automatically adapt to mixing cylinders of different sizes without observing to determine whether the scraping rod is in contact with the inner wall of the mixing cylinder, and then under the continuous rotation of the driving shaft, the scraping rod scrapes the side wall of the mixing cylinder. Brief Description of the Drawings

[0029] Figure 1 is a schematic structural diagram of the present invention;

[0030] Figure 2 is a cross-sectional view of the mixing cylinder in the present invention;

[0031] Figure 3 is Figure 2 an enlarged view of part A in

[0032] Figure 4 is Figure 2 an enlarged view of part B in

[0033] Figure 5 Schematic diagram of the position of the output shaft in the present invention;

[0034] Figure 6 Cross-sectional view of the fixed cylinder and the extension cylinder in the present invention.

[0035] In the figure: 1, mixing cylinder; 2, support frame; 3, guiding disc; 4, second motor; 5, first motor; 6, transmission frame; 7, driving shaft; 8, fixed cylinder; 9, extension cylinder; 10, mixing rod; 11, rotating shaft; 12, stirring rod; 13, sliding groove; 14, sliding block; 15, guiding groove; 16, reserved frame; 17, scraping rod; 18, output shaft; 19, pushing shaft; 20, moving cavity; 21, pushing block; 22, external thread; 23, internal thread; 24, pushing rod; 25, return spring; 26, transmission rod; 27, telescopic rod. Specific embodiments

[0036] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0037] See Figures 1-6 , a stuffing mixing device for reducing wall sticking, including a mixing cylinder 1, and further including a scraping rod 17 for scraping the stuffing on the inner wall of the mixing cylinder 1. A mixing rod 10 for mixing the stuffing is arranged in the mixing cylinder 1, and a plurality of mixing rods 10 are connected to the same driving shaft 7.

[0038] The top end of the mixing cylinder 1 is connected with a support frame 2. The driving shaft 7 is rotatably connected with the support frame 2. A first motor 5 is connected to the support frame 2, and the first motor 5 is used to drive the driving shaft 7 to rotate;

[0039] The output end of the first motor 5 is connected with a transmission frame 6, and the bottom end of the transmission frame 6 is connected with the outer side wall of the driving shaft 7.

[0040] The stuffing is poured into the mixing cylinder 1, and then the first motor 5 is controlled. The first motor 5 will drive the transmission frame 6 and the driving shaft 7 to rotate synchronously. When the driving shaft 7 rotates, it will drive a plurality of mixing rods 10 connected to the outside to rotate, so as to mix the stuffing in the mixing cylinder 1. This method is a conventional method for mixing stuffing.

[0041] Embodiment 1

[0042] This embodiment is an improvement on the method of scraping the stuffing on the inner side wall of the mixing cylinder 1 in the conventional method. The purpose is to solve the situation that a gap appears between the inner wall of the mixing cylinder 1 and the scraping rod 17 caused by the scraping rod 17 being in contact with the inner side wall of the mixing cylinder 1 for a long time.

[0043] The inside of the driving shaft 7 is hollow, and a second motor 4 is connected to the top thereof. A fixed cylinder 8 is fixedly connected to the driving shaft 7. An extension cylinder 9 is inserted and connected to the fixed cylinder 8. One end of the extension cylinder 9 close to the mixing cylinder 1 is connected to the scraping rod 17. The second motor 4 can drive the scraping rod 17 to move towards the inner wall of the mixing cylinder 1 and make the scraping rod 17 abut against the inner wall of the mixing cylinder 1. It should be noted that the height of the poured stuffing does not exceed the height of the extension cylinder 9.

[0044] The second motor 4 is located inside the transmission frame 6. The output end of the second motor 4 is connected to an output shaft 18. The output shaft 18 extends into the driving shaft 7. The inside of the fixed cylinder 8 is hollow and communicates with the inside of the driving shaft 7;

[0045] A push shaft 19 is rotatably connected inside the fixed cylinder 8. The push shaft 19 is connected to the output shaft 18 through bevel gears. When the output shaft 18 rotates, it can drive the push shaft 19 to rotate through the bevel gears.

[0046] When the stuffing is almost finished being stirred and the driving shaft 7 is still rotating continuously, the second motor 4 will start. The second motor 4 drives the output shaft 18 inside the driving shaft 7 to rotate. The output shaft 18 drives a plurality of push shafts 19 to rotate under the action of the bevel gears.

[0047] A moving groove is formed inside the extension cylinder 9. One end of the push shaft 19 is located inside the moving groove in the initial state. A moving cavity 20 is formed at the notch of the moving groove. A push block 21 is slidably connected to the inner side wall of the moving cavity 20. The surface of the push block 21 opposite to the moving groove is arranged in an arc shape;

[0048] External threads 22 are formed on the outer side wall of the push shaft 19. Internal threads 23 are formed on the surface of the push block 21 opposite to the push shaft 19. The internal threads 23 and the external threads 22 are mutually adapted. When the scraping rod 17 is not in contact with the inner side wall of the mixing cylinder 1, the internal threads 23 and the external threads 22 are mutually engaged.

[0049] During the rotation of the push shaft 19 described above, since the sliding direction of the push block 21 is perpendicular to the arrangement direction of the push shaft 19, and the push block 21 is in contact with the outer side wall of the push shaft 19 under the action of the return spring 25, the rotation of the push shaft 19 will move the extension cylinder 9 in the direction away from the fixed cylinder 8 under the action of the internal threads 23 and the external threads 22. At this time, the moving direction of the push shaft 19 is towards the inner side wall of the mixing cylinder 1. Thus, it can also drive the scraping rod 17 to move towards the inner side wall of the mixing cylinder 1.

[0050] Refer to the appendix Figure 6, a return spring 25 is provided between the pushing block 21 and the moving cavity 20. A pushing rod 24 is inserted through the extending cylinder 9. One end of the pushing rod 24 is inside the moving cavity 20, and the other end is outside the extending cylinder 9 and approaches the scraping rod 17;

[0051] The pushing rod 24 is connected to the pushing block 21 through a transmission rod 26. The movement of the pushing rod 24 will drive the pushing block 21 to move towards the bottom of the moving cavity 20 through the transmission rod 26;

[0052] An expansion and contraction rod 27 is provided between the scraping rod 17 and the extending cylinder 9. After the scraping rod 17 contacts the inner side wall of the stirring cylinder 1, it will push the pushing rod 24.

[0053] When the scraping rod 17 moves towards the inner side wall of the stirring cylinder 1 as described above, it should be noted that the resistance of the filling to the scraping rod 17 is not sufficient to cause the scraping rod 17 to push the pushing rod 24. When the scraping rod 17 moves close to the inner wall of the stirring cylinder 1 and contacts the inner wall, the expansion and contraction rod 27 will be compressed, and the distance between the extending cylinder 9 and the scraping rod 17 will also become smaller accordingly, until the scraping rod 17 abuts against the pushing rod 24. When the pushing rod 24 is pushed towards the fixed cylinder 8 under the action of the scraping rod 17, referring to the enlarged view in the attachment Figure 6 , the pushing rod 24 will cause the pushing block 21 to move under the action of the transmission rod 26, causing the return spring 25 to be compressed. At this time, the internal thread 23 and the external thread 22 are disengaged from each other. Even if the pushing shaft 19 continues to rotate, it will not continue to drive the movement of the extending cylinder 9. At this time, the scraping rod 17 will be in a relatively stable position where it is attached to the inner wall of the stirring cylinder 1. Without the need for the operator to observe with the naked eye, the two can be closely attached, and it can adapt to stirring cylinders 1 of different sizes.

[0054] In summary, during the process of stirring the filling, the scraping rod 17 will not continuously adhere to the inner wall of the stirring cylinder 1, but will only adhere to the inner wall of the stirring cylinder 1 when the filling is almost finished. In this way, it can also delay the situation where the gap between the scraping rod 17 and the inner wall of the stirring cylinder 1 becomes larger due to long-term adhesion. The service life of the filling mixing device is improved, and at the same time, the efficiency of scraping the filling sticking to the wall can also be improved.

[0055] Embodiment 2

[0056] This embodiment is an improvement on the existing method of stirring the filling. During the process of the mixing rod 12 and the stirring rod 10 stirring the filling, the mixing rod 12 and the stirring rod 10 will make a swinging motion to improve the stirring efficiency of the filling.

[0057] A mixing rod 12 is rotatably connected to the fixed cylinder 8. The mixing rod 12 can make a swinging motion in the filling during the rotation of the driving shaft 7.

[0058] A guiding disc 3 is fixedly connected to the support frame 2. The guiding disc 3 is arranged outside the driving shaft 7. A guiding groove 15 is formed at the bottom of the guiding disc 3. The guiding groove 15 is arranged in a wavy shape along the arrangement direction of the guiding disc 3.

[0059] A reserved frame 16 is slidably connected in the guiding groove 15. The top end of the stirring rod 12 is slidably connected to the inner side wall of the reserved frame 16.

[0060] A sliding groove 13 is formed in the stirring rod 10. A sliding block 14 is slidably connected in the sliding groove 13. The bottom end of the stirring rod 12 is rotatably connected to the sliding block 14. The stirring rod 10 is rotatably connected to the driving shaft 7 through a rotating shaft 11.

[0061] Refer to the appendix Figure 2 - appendix Figure 4 When the fixed cylinder 8 rotates under the action of the driving shaft 7, it will drive the stirring rod 12 and the stirring rod 10 to rotate. The top end of the stirring rod 12 will move along the arrangement of the guiding groove 15. Refer to the appendix Figure 3 The guiding groove 15 is arranged in a ring-shaped wavy pattern. This will cause the horizontal distance of the reserved frame 16 to change repeatedly, causing the stirring rod 12 to swing during rotation.

[0062] And refer to the appendix Figure 4 When the top end of the stirring rod 12 undergoes a displacement change, its bottom end will also change in distance. Synchronously, the sliding block 14 moves in the sliding groove 13, enabling the stirring rod 10 to make a swinging motion during rotation.

[0063] Compared with the existing fixed stirring process, the stirring methods of the above-mentioned stirring rod 12 and stirring rod 10 improve the stirring range of the filling and can better stir the filling.

[0064] A method for using a stuffing mixing device for reducing wall sticking includes the following steps:

[0065] ① Put the stuffing into the mixing cylinder 1, where the height of the stuffing is not higher than the height of the fixed cylinder 8.

[0066] ② Then start the first motor 5. The first motor 5 will drive the driving shaft 7 to rotate. When the driving shaft 7 rotates, it stirs the stuffing through the stirring rod 10 and the stirring rod 12. During the process of the stirring rod 10 stirring the stuffing, the guiding groove 15 also causes the stirring rod 12 and the stirring rod 10 to swing to improve the stirring efficiency of the stuffing.

[0067] ③When the filling is almost but not completely stirred, the second motor 4 will be turned on so that the scraping rod 17 is in contact with the inner wall of the stirring cylinder 1. When the driving shaft 7 continues to rotate at this time, the filling on the inner side wall of the stirring cylinder 1 will be scraped by the scraping rod 17, so as to reduce the occurrence of filling sticking to the wall.

[0068] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0069] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0070] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article or device / equipment including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes the elements inherent in these processes, articles or devices / equipment.

[0071] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A stuffing mixing device for reducing wall sticking, comprising a mixing drum (1), characterized in that: It also includes a scraping rod (17) for scraping the fillings on the inner wall of the mixing drum (1), wherein a stirring rod (10) for mixing the fillings is provided in the mixing drum (1), and the stirring rod (10) is connected to the same driving shaft (7); The top end of the mixing drum (1) is connected to a support frame (2), the driving shaft (7) is rotatably connected to the support frame (2), the support frame (2) is connected to a first motor (5), and the first motor (5) is used to drive the driving shaft (7) to rotate; The interior of the driving shaft (7) is hollow, and a second motor (4) is connected to the top of the driving shaft (7). A fixed cylinder (8) is fixedly connected to the driving shaft (7), and an extension cylinder (9) is inserted and connected to the fixed cylinder (8). An end of the extension cylinder (9) close to the mixing drum (1) is connected to a scraper rod (17). The second motor (4) can drive the scraper rod (17) to move toward the inner wall of the mixing drum (1) so that the scraper rod (17) can abut against the inner wall of the mixing drum (1). A mixing rod (12) is rotatably connected to the fixed cylinder (8). The mixing rod (12) can swing in the filling material during the rotation of the driving shaft (7). The second motor (4) is located in the transmission frame (6); the output end of the second motor (4) is connected to an output shaft (18); the output shaft (18) extends into the driving shaft (7); the interior of the fixed cylinder (8) is hollow and communicates with the interior of the driving shaft (7); The fixed cylinder (8) is internally rotatably connected to a driving shaft (19), and the driving shaft (19) is connected to the output shaft (18) via a bevel gear. When the output shaft (18) rotates, the driving shaft (19) can be driven to rotate via the bevel gear. A moving groove is provided in the extension cylinder (9), one end of the driving shaft (19) is located in the moving groove in an initial state, a moving cavity (20) is provided at the notch of the moving groove, a driving block (21) is slidably connected to the inner side wall of the moving cavity (20), and a surface of the driving block (21) opposite to the moving groove is arranged in an arc shape; The outer wall of the driving shaft (19) is provided with an external thread (22), and the side of the driving block (21) opposite to the driving shaft (19) is provided with an internal thread (23). The internal thread (23) and the external thread (22) are adapted to each other. When the scraper rod (17) is not in contact with the inner wall of the mixing drum (1), the internal thread (23) and the external thread (22) are meshed with each other. A return spring (25) is provided between the push block (21) and the moving cavity (20); a push rod (24) is inserted through the extension cylinder (9); one end of the push rod (24) is located in the moving cavity (20), and the other end is located outside the extension cylinder (9) and is close to the scraper rod (17); The push rod (24) and the push block (21) are connected via a transmission rod (26), and the movement of the push rod (24) drives the push block (21) to move toward the bottom of the moving cavity (20) via the transmission rod (26); A telescopic rod (27) is provided between the scraper rod (17) and the extension cylinder (9), and the scraper rod (17) pushes the push rod (24) after contacting the inner wall of the mixing cylinder (1).

2. A stuffing mixing device for reducing wall sticking according to claim 1, characterized in that: The output end of the first motor (5) is connected to a transmission frame (6), and the bottom end of the transmission frame (6) is connected to the outer side wall of the driving shaft (7).

3. A stuffing mixing device for reducing wall sticking according to claim 1, characterized in that: The support frame (2) is fixedly connected to a guide disc (3), the guide disc (3) being arranged on the outside of the driving shaft (7), a guide groove (15) being provided at the bottom of the guide disc (3), and the guide groove (15) being arranged in a wave shape along the arrangement direction of the guide disc (3); A reserved frame (16) is slidably connected in the guide groove (15), and a top end of the mixing rod (12) is slidably connected to an inner side wall of the reserved frame (16); A sliding groove (13) is provided on the stirring rod (10), a sliding block (14) is slidably connected in the sliding groove (13), the bottom end of the stirring rod (12) is rotationally connected to the sliding block (14), and the stirring rod (10) is rotationally connected to the driving shaft (7) via the rotating shaft (11).

4. A method for using a stuffing mixing device for reducing wall sticking according to any one of claims 1 to 3, characterized in that: The following steps are involved: ① Put the filling into the mixing drum (1), wherein the height of the filling is not higher than the height of the fixed cylinder (8); ② Then, the first motor (5) is turned on, and the first motor (5) drives the driving shaft (7) to rotate. When the driving shaft (7) rotates, the filling is stirred by the stirring rod (10) and the mixing rod (12). In addition, during the stirring of the filling by the stirring rod (10), the mixing rod (12) and the stirring rod (10) are caused to swing by the action of the guide groove (15) to improve the stirring efficiency of the filling; ③ When the stirring of the filling is almost complete but has not yet been completed, the second motor (4) is turned on so that the scraper rod (17) is in contact with the inner wall of the stirring drum (1). At this time, the driving shaft (7) continues to rotate to scrape the filling on the inner wall of the stirring drum (1) through the scraper rod (17), thereby reducing the occurrence of the filling sticking to the wall.

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