A filling device for a food forming machine

Abstract

The present invention relates to the technical field of filling injection, and discloses a filling injection device of a food forming machine, comprising: a frame; a base, which is arranged on the frame and defines a filling channel therein; a hopper, which is used to supply filling to the filling channel; a stop assembly, which comprises an upper stop and a lower stop, the upper stop and the lower stop divide the filling channel into an upper channel, a transition channel and a lower channel, the upper stop is provided with a first connecting hole, the lower stop is provided with a second connecting hole, and the transition channel can be selectively connected with the upper channel or the lower channel; a push-pull filling assembly, the fixed end of which is arranged on the frame, the movable end extends into the transition channel and can reciprocate along a first direction, and the stroke of the movable end in the transition channel along the first direction is adjustable. The amount of filling discharged by the filling injection device of the food forming machine disclosed by the present invention is adjustable, and the user can adjust the amount of filling discharged according to actual needs, thereby increasing the applicability of the filling injection device.

Description

Technical Field

[0001] The invention relates to the technical field of filling injection, in particular to a filling injection device of a food forming machine. Background Art

[0002] When the filling device of the existing food forming machine discharges materials, the amount of filling discharged in each action is fixed, that is, one filling device can only be used to process products with a single filling amount, and the filling amount cannot be adjusted according to the needs of different foods, making the applicability of the filling device low. Summary of the invention

[0003] Based on the above, the purpose of the present invention is to provide a filling device for a food forming machine, which solves the problem of low applicability caused by a fixed amount of filling discharged by a filling device of a food forming machine in the prior art.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A filling device for a food forming machine comprises: a frame; a base, which is arranged on the frame and defines a filling channel therein; a hopper, which is arranged on the base and connected with the base, and the hopper is used to supply filling to the filling channel; a stop assembly, including an upper stop piece and a lower stop piece, the upper stop piece and the lower stop piece dividing the filling channel into an upper channel, a transition channel and a lower channel, the upper stop piece is provided with a first connecting hole that can connect the upper channel and the transition channel, the lower stop piece is provided with a second connecting hole that can connect the transition channel and the lower channel, the transition channel can be selectively connected to the upper channel or the lower channel; a push-pull filling assembly, a fixed end of which is arranged on the frame, a movable end of the push-pull filling assembly extends into the transition channel and can reciprocate along a first direction, and the movable end is adjustable in the transition channel along the first direction to change the amount of filling entering or discharged from the transition channel.

[0006] As a preferred solution for a filling device of a food forming machine, the push-pull filling assembly includes a push-pull power member and a push-pull rod, one end of the push-pull rod is connected to the output end of the push-pull power member, and the other end of the push-pull rod is sealed to the transition channel, and the push-pull power member can drive the push-pull rod to reciprocate along the first direction.

[0007] As a preferred solution for the filling device of a food forming machine, the push-pull filling assembly also includes a connecting rod assembly, one end of the connecting rod assembly is provided with a slide groove, the output end of the push-pull power member is rotatably connected to one end of the connecting rod assembly and the output end of the push-pull power member can slide along the slide groove, the other end of the connecting rod assembly is rotatably connected to the push-pull rod, and the middle part of the connecting rod assembly is rotatably connected to the frame.

[0008] As a preferred solution of a stuffing injection device of a food forming machine, the stuffing injection device of the food forming machine also includes a quantitative adjustment member arranged on the frame, the installation position of the quantitative adjustment member on the frame is adjustable, the middle part of the connecting rod assembly is rotatably connected to the quantitative adjustment member, and when the push-pull power member drives the connecting rod assembly to drive the push-pull rod to be pulled outward, the connecting rod assembly can abut against the quantitative adjustment member to prevent the push-pull rod from being further pulled outward.

[0009] As a preferred solution of a filling device of a food forming machine, the stop assembly includes a reversing power member, a first gear and a second gear meshing with the first gear, the first gear is provided with the upper stop member, the second gear is provided with the lower stop member, and the reversing power member can drive the first gear and the second gear to rotate in opposite directions.

[0010] As a preferred solution of a filling device of a food forming machine, the reversing power member is a reversing cylinder, and the stop assembly also includes a rack connected to the reversing cylinder, and the rack is meshed with the first gear or the second gear.

[0011] As a preferred solution of the filling device of a food forming machine, the central axis of the first connecting hole is perpendicular to the central axis of the second connecting hole.

[0012] As a preferred embodiment of a filling device of a food forming machine, the number of the push-pull filling components is at least two, the number of the first connecting holes is at least two, and the number of the second connecting holes is at least two, and at least two of the push-pull filling components, at least two of the first connecting holes, and at least two of the second connecting holes are respectively arranged in a one-to-one correspondence.

[0013] As a preferred solution of a filling device of a food forming machine, a stirring power member is provided on the frame, a stirring member is provided in the hopper, an output end of the stirring power member is connected to the stirring member, and the stirring power member can drive the stirring member to rotate.

[0014] As a preferred solution of a filling device of a food forming machine, the stirring member comprises a stirring shaft and stirring blades, and the stirring blades are spirally wound on the stirring shaft.

[0015] The beneficial effects of the present invention are as follows: the push-pull filling component of the filling injection device of the food forming machine disclosed in the present invention has an adjustable stroke along the first direction in the transition channel, so that the amount of filling in the hopper entering the transition channel through the upper channel and the first connecting hole can be changed, and further the amount of filling entering the lower channel through the second connecting hole can be changed. Finally, the amount of filling discharged by the filling injection device of the food forming machine changes, and the user can adjust the amount of filling discharged according to actual needs, thereby increasing the applicability of the filling injection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0017] Figure 1 is a schematic diagram of a filling device of a food forming machine provided in a specific embodiment of the present invention;

[0018] Figure 2 It is a cross-sectional view of a filling device of a food forming machine provided in a specific embodiment of the present invention.

[0019] In the figure:

[0020] 11. Frame; 12. Base; 1201. Upper channel; 1202. Transition channel; 1203. Lower channel; 121. Base body; 122. Guide cylinder;

[0021] 21. hopper; 22. stirring member; 221. stirring shaft; 222. stirring blade;

[0022] 31. upper stop member; 310. first communication hole; 32. lower stop member; 320. second communication hole; 33. reversing power member;

[0023] 4. Push-pull filling assembly; 41. Push-pull power member; 42. Push-pull rod; 43. Connecting rod assembly; 430. Slide; 431. First connecting rod; 432. Second connecting rod;

[0024] 5. Quantitative adjustment parts;

[0025] 6. Discharging components. DETAILED DESCRIPTION

[0026] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] like Figure 1 and Figure 2As shown, the present embodiment provides a filling device for a food forming machine, the device comprising a frame 11, a base 12, a hopper 21, a stop assembly and a push-pull filling assembly 4, the base 12 is arranged on the frame 11 and defines a filling channel therein, the hopper 21 is arranged on the base 12 and communicated with the filling channel, the hopper 21 is used to supply filling to the filling channel, the stop assembly comprises an upper stop piece 31 and a lower stop piece 32, the upper stop piece 31 and the lower stop piece 32 divide the filling channel into an upper channel 1201, a transition channel 1202 and a lower channel 1203, the upper stop piece 31 is provided with a means for connecting the upper channel 1201 and the transition channel 1 The first connecting hole 310 of 202, the lower stop member 32 is provided with a second connecting hole 320 capable of connecting the transition channel 1202 and the lower channel 1203, the transition channel 1202 can be selectively connected with the upper channel 1201 or the lower channel 1203, the fixed end of the push-pull filling component 4 is arranged on the frame 11, the movable end of the push-pull filling component 4 extends into the transition channel 1202 and can reciprocate along the first direction, the movable end can be adjusted in the transition channel 1202 along the first direction to change the amount of filling entering or discharged from the transition channel 1202, the first direction of the present embodiment is a filling device of a food forming machine such as Figure 1 Horizontal orientation when placed.

[0030] The push-pull filling component 4 of the filling injection device of the food forming machine provided in this embodiment has an adjustable stroke along the first direction in the transition channel 1202, so that the amount of filling in the hopper 21 entering the transition channel 1202 through the upper channel 1201 and the first connecting hole 310 can be changed, and further the amount of filling entering the lower channel 1203 through the second connecting hole 320 can be changed. Finally, the amount of filling discharged by the filling injection device of the food forming machine changes, and the user can adjust the amount of filling discharged according to actual needs, thereby increasing the applicability of the filling injection device.

[0031] Specifically, Figure 2 As shown, the push-pull filling assembly 4 of this embodiment includes a push-pull power member 41 and a push-pull rod 42. The push-pull power member 41 is a push-pull cylinder. One end of the push-pull rod 42 is connected to the output end of the push-pull power member 41, and the other end of the push-pull rod 42 is sealed and connected to the transition channel 1202. The push-pull power member 41 can drive the push-pull rod 42 to reciprocate along the first direction, and the push-pull rod 42 is horizontally arranged.

[0032] like Figure 2As shown, the push-pull filling assembly 4 of the present embodiment also includes a connecting rod assembly 43, one end of the connecting rod assembly 43 is provided with a slide groove 430, the output end of the push-pull power member 41 is rotatably connected to one end of the connecting rod assembly 43 and the output end of the push-pull power member 41 can slide along the slide groove 430, the other end of the connecting rod assembly 43 is rotatably connected to the push-pull rod 42, the middle part of the connecting rod assembly 43 is rotatably connected to the frame 11, the push-pull power member 41 can drive one end of the connecting rod assembly 43 to move in a first direction, so that one end of the connecting rod assembly 43 rotates relative to the push-pull power member 41 and the output end of the push-pull power member 41 slides along the slide groove 430, and at the same time, the other end of the connecting rod assembly 43 rotates relative to the push-pull rod 42 and drives the push-pull rod 42 to move in the first direction.

[0033] The filling device of the food forming machine of this embodiment also includes a quantitative adjustment member 5 arranged on the frame 11. The installation position of the quantitative adjustment member 5 on the frame 11 is adjustable along the first direction. The quantitative adjustment member 5 is slidably connected to the frame 11 along the first direction. The middle part of the connecting rod assembly 43 is rotatably connected to the quantitative adjustment member 5. When the push-pull power member 41 drives the connecting rod assembly 43 to drive the push-pull rod 42 to be pulled outward, the connecting rod assembly 43 can abut against the quantitative adjustment member 5 to prevent the push-pull rod 42 from being further pulled outward, thereby adjusting the stroke of the push-pull rod 42, and finally changing the amount of filling entering the transition channel 1202.

[0034] Specifically, by adjusting the position of the quantitative adjustment member 5 on the frame 11 , the volume of the transition channel 1202 when the push-pull rod 42 is pulled outward to abut against the quantitative adjustment member 5 can be adjusted, thereby changing the amount of filling in the transition channel 1202 entering the lower channel 1203 .

[0035] Furthermore, if Figure 1 As shown, the base 12 of this embodiment includes a base body 121 and a guide cylinder 122, the push-pull rod 42 extends into the guide cylinder 122 and is sealed with the guide cylinder 122, and the upper stopper 31, the lower stopper 32, the base body 121, the push-pull rod 42 and the guide cylinder 122 surround the transition channel 1202 of this embodiment. The lower channel 1203 of this embodiment is an L-shaped channel, which can change the direction of the filling, thereby facilitating the discharge of the filling.

[0036] It should be noted that if Figure 2As shown, the connecting rod assembly 43 of this embodiment includes a first connecting rod 431 and a second connecting rod 432, a chute 430 is provided at one end of the first connecting rod 431, and one end of the first connecting rod 431 is rotatably connected to the output end of the push-pull power member 41, the other end of the first connecting rod 431 is rotatably connected to one end of the second connecting rod 432, the middle part of the first connecting rod 431 is rotatably connected to the quantitative adjustment member 5, and the other end of the second connecting rod 432 is rotatably connected to the push-pull rod 42. The push-pull power member 41 can drive one end of the first connecting rod 431 to move in a first direction, so that one end of the first connecting rod 431 rotates relative to the push-pull power member 41 and the output end of the push-pull power member 41 slides along the chute, and at the same time, the other end of the second connecting rod 432 rotates relative to the push-pull rod 42 and drives the push-pull rod 42 to move in the first direction.

[0037] Further, the movement of the push-pull filling component 4 along the first direction away from the filling channel is defined as leftward movement, and the movement along the first direction toward the filling channel is defined as rightward movement. When the movable end of the push-pull power member 41 moves to the right, the middle part of the first connecting rod 431 rotates relative to the quantitative adjustment member 5, so that the end of the first connecting rod 431 connected to the second connecting rod 432 moves to the left and upward, so that the other end of the second connecting rod 432 rotates relative to the push-pull rod 42 and drives the push-pull rod 42 to move to the left, so that the volume of the transition channel 1202 increases. At this time, the transition channel 1202 is in a connected state with the upper channel 1201 and the transition channel 1202 is in a closed state with the lower channel 1203. The filling in the upper channel 1201 enters the transition channel 1202 through the first connecting hole 310. When the connecting rod assembly 43 abuts against the quantitative adjustment member 5, the movable end of the push-pull power member 41 cannot continue to move to the right, so that the filling in the transition channel 1202 is the largest at this time.

[0038] When the movable end of the push-pull power member 41 moves to the left, the middle part of the first connecting rod 431 rotates relative to the quantitative adjustment member 5, so that the end of the first connecting rod 431 connected to the second connecting rod 432 moves to the right and downward, so that the other end of the second connecting rod 432 rotates relative to the push-pull rod 42 and drives the push-pull rod 42 to move to the right, so that the push-pull rod 42 squeezes the meat filling in the transition channel 1202. At this time, the transition channel 1202 and the lower channel 1203 are in a connected state and the transition channel 1202 and the upper channel 1201 are in a closed state. The filling in the transition channel 1202 is squeezed by the push-pull rod 42 and enters the lower channel 1203 through the second connecting hole 320.

[0039] Of course, in other embodiments of the present invention, the connecting rod assembly 43 may not be provided, and the output end of the push-pull power member 41 is directly connected to the push-pull rod 42. The push-pull rod 42 is provided with a matching piece at one end close to the push-pull power member 41, and the matching piece can abut against the quantitative adjustment member 5, thereby limiting the movement of the push-pull rod 42. By adjusting the position of the quantitative adjustment member 5 on the frame 11, the stroke of the push-pull rod 42 is changed, and finally the amount of filling discharged at one time by the filling device of the food forming machine is changed.

[0040] like Figure 1 As shown, the stop assembly of this embodiment also includes a reversing power member 33, a first gear (not shown in the figure) and a second gear meshing with the first gear (not shown in the figure), the first gear is provided with an upper stop member 31, the second gear is provided with a lower stop member 32, and the reversing power member 33 can drive the first gear and the second gear to rotate in opposite directions. The reversing power member 33 of this embodiment is a reversing cylinder, and the stop assembly also includes a rack (not shown in the figure), the rack is connected to the reversing cylinder, and the rack is meshed with the first gear or the second gear. The central axis of the first connecting hole 310 of this embodiment is perpendicular to the central axis of the second connecting hole 320.

[0041] Specifically, the stroke of the reversing power member 33 is fixed, the output end of the reversing power member 33 moves between the first position and the second position, the rack moves the same distance, the upper stop member 31 and the lower stop member 32 rotate 90° respectively, and the rotation directions of the two are opposite, so that the transition channel 1202 is connected with the upper channel 1201 or the lower channel 1203. If the output end of the reversing power member 33 is in the first position, the transition channel 1202 is connected with the upper channel 1201, and the transition channel 1202 is separated from the lower channel 1203. At this time, the filling device of the food forming machine is in a feeding state. When the output end of the reversing power member 33 moves from the first position to the second position, the upper stop member 31 and the lower stop member 32 rotate 90° respectively, the transition channel 1202 is connected with the lower channel 1203, and the transition channel 1202 is separated from the upper channel 1201, and the filling in the transition channel 1202 enters the lower channel 1203 through the second connecting hole 320 and is discharged. When the output end of the reversing power member 33 moves from the second position to the first position, the upper stop member 31 and the lower stop member 32 rotate 90° in the opposite direction respectively, the transition channel 1202 is connected with the upper channel 1201, and the transition channel 1202 is separated from the lower channel 1203, and the filling in the upper channel 1201 enters the transition channel 1202 through the first connecting hole 310.

[0042] It should be noted that the upper stop member 31 and the lower stop member 32 of the present embodiment are both stop shafts, and the upper stop member 31 and the lower stop member 32 rotate once at preset time intervals, that is, at preset time intervals, the connection state between the transition channel 1202 and the upper channel 1201 and the lower channel 1203 changes compared with the previous time period.

[0043] Of course, in other embodiments of the present invention, the reversing power member 33 can also be a motor, and the output end of the motor is directly connected to one of the first gear or the second gear. The motor can drive the first gear and the second gear to rotate. In this case, the rack can be omitted, and the transition channel 1202 can be connected to the upper channel 1201 or the lower channel 1203 by controlling the number of rotations of the motor. The reversing power member 33 is selected according to actual needs.

[0044] In this embodiment, there are two push-pull filling components 4, two first connecting holes 310 on the upper stop member 31, and two second connecting holes 320 on the lower stop member 32. The two push-pull filling components 4, the two first connecting holes 310, and the two second connecting holes 320 are respectively arranged in a one-to-one correspondence, so that the filling device of the food forming machine can discharge two portions of fillings at the same time, thereby improving the processing speed of the food. Of course, in other embodiments, the number of push-pull filling components 4 can also be one or more than two, and the corresponding number of the first connecting holes 310 and the number of the second connecting holes 320 will change accordingly, and the specific arrangement is based on actual needs.

[0045] The frame 11 of this embodiment is provided with a stirring power member (not shown in the figure), such as Figure 1 and Figure 2 As shown, a stirring member 22 is provided in the hopper 21, and the output end of the stirring power member is connected to the stirring member 22, and the stirring power member can drive the stirring member 22 to rotate. Figure 2 As shown, the stirring member 22 includes a stirring shaft 221 and a stirring blade 222, and the stirring blade 222 is spirally wound on the stirring shaft 221. When the filling device of the food forming machine provided in this embodiment is working, the stirring power member drives the stirring member 22 to rotate, so that the filling in the hopper 21 falls into the bottom of the hopper 21 and part of the filling enters the upper channel 1201, thereby ensuring that the filling can better enter the transition channel 1202, and avoiding the filling adhering to the inner wall of the hopper 21, so that when the transition channel 1202 is connected with the upper channel 1201, the transition channel 1202 cannot be completely filled with the filling due to insufficient filling in the upper channel 1201.

[0046] The filling device of the food forming machine of the present embodiment further comprises a discharging assembly 6, which is used to discharge the filling in the lower channel 1203. The discharging assembly 6 belongs to the prior art and will not be described in detail here.

[0047] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A filling device for a food forming machine, characterized in that: include: Frame (11); A base (12) is disposed on the frame (11) and defines a filling passage therein; A hopper (21), the hopper being used to supply fillings to the filling passage; A through-stop assembly, comprising an upper through-stop member (31) and a lower through-stop member (32), wherein the upper through-stop member (31) and the lower through-stop member (32) divide the filling channel into an upper channel (1201), a transition channel (1202) and a lower channel (1203), wherein the upper through-stop member (31) is provided with a first communication hole (310) capable of connecting the upper channel (1201) and the transition channel (1202), and the lower through-stop member (32) is provided with a second communication hole (320) capable of connecting the transition channel (1202) and the lower channel (1203), and the transition channel (1202) can be selectively connected to the upper channel (1201) or the lower channel (1203); A push-pull filling component (4), a fixed end of which is arranged on the frame (11), a movable end of which extends into the transition channel (1202) and is capable of reciprocating along a first direction, and a stroke of the movable end in the transition channel (1202) along the first direction is adjustable to change the amount of filling entering or discharged from the transition channel (1202); The push-pull filling component (4) comprises a push-pull power member (41) and a push-pull rod (42), one end of the push-pull rod (42) is connected to the output end of the push-pull power member (41), and the other end of the push-pull rod (42) is sealedly connected to the transition channel (1202), and the push-pull power member (41) can drive the push-pull rod (42) to reciprocate along the first direction; The push-pull filling assembly (4) further comprises a connecting rod assembly (43), one end of the connecting rod assembly (43) is provided with a slide groove (430), the output end of the push-pull power member (41) is rotatably connected to one end of the connecting rod assembly (43) and the output end of the push-pull power member (41) can slide along the slide groove (430), the other end of the connecting rod assembly (43) is rotatably connected to the push-pull rod (42), and the middle part of the connecting rod assembly (43) can be rotatably connected to the frame (11); The filling device of the food forming machine also includes a quantitative adjustment member (5) arranged on the frame (11), the installation position of the quantitative adjustment member (5) on the frame (11) is adjustable, the quantitative adjustment member (5) is slidably connected to the frame (11) along the first direction, the middle part of the connecting rod assembly (43) is rotatably connected to the quantitative adjustment member (5), and when the push-pull power member (41) drives the connecting rod assembly (43) to drive the push-pull rod (42) to be pulled outward, the connecting rod assembly (43) can abut against the quantitative adjustment member (5) to prevent the push-pull rod (42) from being further pulled outward.

2. The filling device of the food forming machine according to claim 1, characterized in that: The stop assembly comprises a reversing power member (33), a first gear and a second gear meshing with the first gear, the first gear being provided with the upper stop member (31), the second gear being provided with the lower stop member (32), and the reversing power member (33) being capable of driving the first gear and the second gear to rotate in opposite directions.

3. The filling device of the food forming machine according to claim 2, characterized in that: The reversing power member (33) is a reversing cylinder, and the stop assembly further comprises a rack connected to the reversing cylinder, and the rack is meshed with the first gear or the second gear.

4. The filling device of the food forming machine according to any one of claims 1 to 3, characterized in that: The central axis of the first connecting hole (310) and the central axis of the second connecting hole (320) are perpendicular.

5. The filling device of the food forming machine according to any one of claims 1 to 3, characterized in that: The number of the push-pull filling components (4) is at least two, the number of the first connecting holes (310) is at least two, and the number of the second connecting holes (320) is at least two. At least two push-pull filling components (4), at least two first connecting holes (310), and at least two second connecting holes (320) are respectively arranged in a one-to-one correspondence.

6. The filling device of the food forming machine according to any one of claims 1 to 3, characterized in that: The frame (11) is provided with a stirring power member, the hopper (21) is provided with a stirring member (22), the output end of the stirring power member is connected to the stirring member (22), and the stirring power member can drive the stirring member (22) to rotate.

7. The filling device of the food forming machine according to claim 6, characterized in that: The stirring member (22) comprises a stirring shaft (221) and a stirring blade (222), wherein the stirring blade (222) is spirally wound around the stirring shaft (221).

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