A steamed bun machine

Abstract

This utility model discloses a steamed bun machine, including a frame; a filling feeding mechanism, which includes a filling hopper, an auger, a first motor, and a filling tube. The filling hopper is located on the top of the frame, opening upwards and having a filling outlet at one end. The auger is rotatably and horizontally positioned at the bottom of the filling hopper, with its front end outside the filling outlet. The first motor is connected to the rear end of the auger to drive its rotation. The filling tube is vertically positioned below the filling outlet, with its top forming a funnel opening; a dough conveyor belt for conveying dough; and a dough tube forming mechanism, which is fitted around the lower outer side of the filling tube. This filling feeding mechanism uses an auger to push the filling out of the filling outlet from the filling hopper, allowing the filling to fall freely from the funnel opening into the filling tube, and then from the bottom of the filling tube into the dough tube. During the filling process, the filling is not compressed or damaged, and it is less prone to leakage or breakage, allowing for better production of steamed buns with fillings such as tofu and eggplant.

Description

Technical Field

[0001] This utility model belongs to the technical field of food processing equipment, and in particular relates to a steamed bun machine. Background Technology

[0002] Existing steamed bun machines generally consist of a filling feeding mechanism, a dough feeding mechanism, a filling wrapping mechanism, a shaping mechanism, and a conveying mechanism. When the machine is running, the operator adds the filling and dough to the filling and dough feeding mechanisms respectively. Through the extrusion and conveying action of these two mechanisms, the filling and dough are transported into the filling wrapping mechanism, forming a structure where a dough tube wraps around the filling column. Then, the shaping mechanism cuts this structure to form the shape of a steamed bun, which is then conveyed out of the machine. The filling feeding mechanism generally includes a filling hopper, an extrusion device, and a conveying pipe. The extrusion device is typically a screw pump, a stirring extruder, or a cam rotor pump.

[0003] In existing steamed bun machines, the filling feeding mechanism extrudes the filling from the filling hopper into the conveying pipe via an extrusion device. Because the inner diameter of the conveying pipe is relatively small (its cross-sectional area is much smaller than that of the filling hopper), the filling is subjected to significant pressure. Simultaneously, the screw blades and extrusion rods in the extrusion device cause considerable cutting damage to the filling. This high pressure causes fillings with high water content (such as eggplant) to release excessive juice, making the buns prone to leaking after shaping. The cutting damage to the filling also leads to severe breakage of tofu-type fillings, affecting both taste and appearance. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a steamed bun machine.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A steamed bun machine includes a frame; a filling feeding mechanism comprising a filling hopper, an auger, a first motor, and a filling tube, wherein the filling hopper is located on the top of the frame, the filling hopper opens upward and has a filling outlet at one end, the auger is rotatably and horizontally located at the bottom of the filling hopper with its front end outside the filling outlet, the first motor is connected to the rear end of the auger to drive the auger to rotate, and the filling tube is vertically located below the filling outlet with a funnel-shaped opening at its top; a dough feeding conveyor belt for conveying dough; a dough tube forming mechanism, which is fitted around the lower end of the filling tube and connected to the end of the dough feeding conveyor belt to extrude the dough conveyed by the conveyor belt downward to form a dough tube fitted around the lower end of the filling tube; and a cutting and shaping mechanism, which is located below the filling tube to press and cut the dough tube formed by the dough tube forming mechanism toward the center and form bun pleats on the top of the cut dough tube.

[0007] Preferably, the frame is equipped with a controller and a laser sensor, the laser sensor is located at the bottom of the cutting and shaping mechanism, and the controller, laser sensor, first motor, dough feeding conveyor belt, dough tube forming mechanism, and cutting and shaping mechanism are electrically connected respectively.

[0008] Preferably, the dough tube forming mechanism includes a transmission tube, a receiving panel, a forming tube, a baffle plate, and a driving mechanism. The transmission tube is sleeved on the outside of the filling tube, and the lower end of the filling tube is longer than the transmission tube. An auger blade is provided on the outer wall of the transmission tube. The receiving panel is horizontally connected to the end of the dough feeding conveyor belt, and the receiving panel has an opening that fits over the auger blade. The baffle plate is vertically arranged on the upper surface of the receiving panel. The baffle plate is open on one side facing the dough feeding conveyor belt and surrounds the outer circular surface of the auger blade on the other side. The forming tube is connected to the bottom of the receiving panel and sleeved on the lower end of the auger blade and the outer side of the filling tube. The lower end of the forming tube is tapered so that a thickness gap is formed between its inner tube wall and the outer tube wall of the filling tube. The driving mechanism is connected to the transmission tube for driving the transmission tube to rotate. The driving mechanism and the controller are electrically connected.

[0009] Preferably, the drive mechanism includes a second motor, a first driving pulley, a first driven pulley, and a first transmission belt. The first driven pulley is sleeved on a transmission tube. The second motor is connected to the frame. The first driving pulley is connected to the output shaft of the second motor. The first transmission belt is connected to the first driving pulley and the first driven pulley. The second motor and the controller are electrically connected.

[0010] Preferably, the cutting and shaping mechanism includes an upper positioning plate, a lower positioning plate, several shaping claw blocks, a driven gear, a drive gear, and a third motor. The upper and lower positioning plates are spaced apart and fixedly connected by bolts. A vertical through hole is formed at the center of both the upper and lower positioning plates. The upper positioning plate is connected to the frame, and the through hole is aligned with the bottom of the filling tube. Several shaping claw blocks are slidably connected between the upper and lower positioning plates and arranged in a ring around the through hole. Sliding grooves are formed on both the upper and lower positioning plates. Sliding pins are connected to the upper and lower surfaces of each shaping claw block, and the sliding pins are slidably connected to the sliding grooves. When the sliding pin slides along the groove, several knitting claw blocks push each other and unfold into a ring around the through hole or close towards the center of the through hole. When the knitting claw blocks are closed, their tops form a flat surface and their bottoms form a bun-shaped pleat. The driven gear plate is rotatably connected to the bottom of the lower positioning plate. The driven gear plate has a drive groove. A drive pin is connected to the lower surface of any knitting claw block. The drive pin passes through the groove of the lower positioning plate and is slidably connected in the drive groove. The third motor is connected to the frame. The drive gear is connected to the output shaft of the third motor. The drive gear meshes with the driven gear plate. The third motor and the controller are electrically connected.

[0011] Preferably, a first vibrator is provided on the wall of the filling tube.

[0012] Preferably, a second vibrator is provided on the outer wall of the filling hopper.

[0013] Preferably, the bottom of the cutting and kneading mechanism is provided with a swing arm transmission mechanism. The swing arm transmission mechanism includes a fixed plate, a fourth motor, a swing arm plate, a second driving pulley, a second driven pulley, and a second transmission belt. The fixed plate is connected to the frame, the fourth motor is connected to the fixed plate, one end of the swing arm plate is provided with a rotating shaft and is rotatably connected to the fixed plate through the rotating shaft, the second driven pulley is connected to the rotating shaft, the second driving pulley is connected to the output shaft of the fourth motor, the second transmission belt is connected to the second driving pulley and the second driven pulley, and the fourth motor is electrically connected to the controller.

[0014] Preferably, the driven gear includes a circular disc body and a sector gear. The sector gear is connected to the outer circle of the circular disc body and protrudes from the circular disc body. The drive groove is formed on the circular disc body. The sector gear meshes with the drive gear. A proximity switch is respectively provided on both sides of the sector gear at the bottom of the lower positioning plate. The proximity switch is electrically connected to the controller.

[0015] The beneficial effects of this utility model are:

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] The filling feeding mechanism of this utility model uses an auger to push the filling out of the filling hopper from the filling outlet, so that the filling falls freely from the funnel opening into the filling tube, and then from the bottom of the filling tube into the dough tube. During the filling feeding process, the filling will not be compressed or damaged, and the filling is less likely to leak juice or break, which can better produce buns with tofu filling, eggplant filling and other fillings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 4 This is an exploded view of the components of the filling tube and dough tube forming mechanism of this utility model.

[0022] Figure 5 This is a schematic diagram of the cutting and knitting mechanism of this utility model when it is closed;

[0023] Figure 6This is an exploded view of the components of the cutting and knitting mechanism of this utility model.

[0024] In the diagram: 1. Frame; 2. Filling feeding mechanism; 21. Filling hopper; 211. Filling outlet; 212. Second vibrator; 22. Screwdriver; 23. First motor; 24. Filling pipe; 241. Funnel opening; 242. First vibrator; 3. Dough forming mechanism; 31. Transmission pipe; 32. Baffle plate; 33. Receiving plate; 34. Forming pipe; 35. Screwdriver blades; 361. Second motor; 362. First driving pulley; 363. First driven pulley; 364. First transmission belt; 4. Dough feeding conveyor belt; 5. Cutting and shaping mechanism; 51 511. Upper positioning plate; 52. Through hole; 53. Lower positioning plate; 54. Pinch claw block; 55. Bun pleat shape; 56. Driven gear plate; 571. Drive groove; 58. Drive gear; 59. Third motor; 50. Slide groove; 51. Sliding pin; 50. Drive pin; 6. Proximity switch; 7. Controller; 81. Laser sensor; 82. Swing arm transmission mechanism; 83. Fixed plate; 84. Fourth motor; 85. Swing arm plate; 86. Rotating shaft; 87. Second drive pulley; 87. Second driven pulley; 88. Second transmission belt. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-6As shown, this utility model provides a technical solution: a steamed bun machine, comprising: a frame 1; a filling feeding mechanism 2, the filling feeding mechanism 2 including a filling hopper 21, an auger 22, a first motor 23, and a filling tube 24. The filling hopper 21 is disposed on the top of the frame 1, the filling hopper 21 opens upward and has a filling outlet 211 at one end, the auger 22 is rotatably and horizontally disposed at the bottom of the filling hopper 21 with its front end located outside the filling outlet 211, the first motor 23 is connected to the rear end of the auger 22 to drive the auger 22 to rotate, and the filling tube 24 is vertically disposed. Below the filling outlet 211 and at the top of the filling tube 24 is a funnel opening 241; a dough conveyor belt 4 for conveying dough; a dough tube forming mechanism 3, which is sleeved on the lower outer side of the filling tube 24 and connected to the end of the dough conveyor belt 4 for extruding the dough conveyed by the dough conveyor belt 4 downward to form a dough tube sleeved on the lower outer side of the filling tube 24; and a cutting and shaping mechanism 5, which is located below the filling tube 24 for pressing and cutting the dough tube formed by the dough tube forming mechanism 3 toward the center and forming bun pleats on the top of the cut dough tube.

[0027] In use, the dough is conveyed to the dough tube forming mechanism 3 via the dough feeding conveyor belt 4. The dough tube forming mechanism 3 extrudes the dough downward to form a dough tube that fits over the lower end of the filling tube 24. Before each use of the bun machine, the filling is not added. The dough tube is cut towards the center by the cutting and pinching mechanism 5, so that the bottom of the dough tube is squeezed and sealed. Then, the mixed filling is added to the filling hopper 21. The first motor 23 drives the auger 22 to rotate at a certain angle. The auger 22 pushes a fixed amount of filling out of the filling outlet 211 from the filling outlet 211. The filling falls freely from the funnel opening 241 into the filling tube 24 and then from the bottom of the filling tube 24 into the dough tube. The cutting and pinching mechanism 5 then cuts the dough tube containing the filling towards the center to form a bun with bun pleats on the top. At the same time, the bottom of the upper part of the dough tube is squeezed and sealed. Then, the next bun is made.

[0028] The filling feeding mechanism 2 of this utility model uses an auger 22 to push the filling out of the filling outlet 211 into the filling hopper 21, so that the filling falls freely from the funnel opening 241 into the filling tube 24, and then falls from the bottom of the filling tube 24 into the dough tube. During the filling feeding process, the filling will not be compressed or damaged, and the filling is less likely to leak juice or break, which can better produce buns with tofu filling, eggplant filling and other fillings.

[0029] Furthermore, the frame 1 is equipped with a controller 6 and a laser sensor 7. The laser sensor 7 is located at the bottom of the cutting and shaping mechanism 5. The controller 6, laser sensor 7, first motor 23, dough feeding conveyor belt 4, dough tube forming mechanism 3, and cutting and shaping mechanism 5 are electrically connected. In use, the dough tube forming mechanism 3 continuously extrudes the dough downwards to form a dough tube. The laser sensor 7 is located at the bottom of the cutting and shaping mechanism 5. When the laser sensor 7 senses the dough tube, it sends an electrical signal to the controller 6. Upon receiving the electrical signal, the controller 6 controls the cutting and shaping mechanism 5 to squeeze and cut the dough tube to form a bun. At this time, the controller 6 can control the dough feeding conveyor belt 4 and the dough tube forming mechanism 3 to stop, and then control the first motor 2323 to drive the auger 22 to rotate at a certain angle to add a fixed amount of filling into the filling tube 24. Then, the controller controls the dough feeding conveyor belt 4 and the dough tube forming mechanism 3 to work again. This process is repeated to achieve automated control of bun production, reduce labor costs, and improve production efficiency.

[0030] Specifically, the dough tube forming mechanism 3 includes a transmission tube 31, a receiving panel 33, a forming tube 34, a baffle plate 37, and a driving mechanism. The transmission tube 31 is sleeved on the outside of the filling tube 24, and the lower end of the filling tube 24 is longer than the transmission tube 31. A screw conveyor blade 35 is provided on the outer wall of the transmission tube 31. The receiving panel 33 is horizontally connected to the end of the dough feeding conveyor belt 4, and the receiving panel 33 has an opening that fits over the screw conveyor blade 35. The baffle plate 37 is vertically arranged on the upper surface of the receiving panel 33. The baffle plate 37 is open on one side facing the dough feeding conveyor belt 4 and surrounds the outer circular surface of the screw conveyor blade 35 on the other side. The forming tube 34 is connected to the bottom of the receiving panel 33 and sleeved on the lower outer side of the screw conveyor blade 35 and the filling tube 24. The lower end of the forming tube 34 is tapered so that a thickness gap is formed between its inner tube wall and the outer tube wall of the filling tube 24. The driving mechanism is connected to the transmission tube 31 to drive the transmission tube 31 to rotate. The driving mechanism is electrically connected to the controller 6. In use, the dough conveyor belt 4 transports the dough to the receiving panel 33. The dough is guided by the baffle plate 37 into the auger blades 35. The drive mechanism drives the transmission tube 31 to rotate the auger blades 35, thereby squeezing and conveying the dough downwards. The dough passes between the lower end of the forming tube 34 and the outer wall of the filling tube 24 to form a dough tube. In use, the thickness of the output dough tube can be adjusted by adjusting the thickness gap between the lower end of the forming tube 34 and the outer wall of the filling tube 24, thereby adjusting the thickness of the bun skin.

[0031] Specifically, the drive mechanism includes a second motor 361, a first driving pulley 362, a first driven pulley 363, and a first transmission belt 364. The first driven pulley 363 is fitted onto the transmission tube 31. The second motor 361 is connected to the frame 1. The first driving pulley 362 is connected to the output shaft of the second motor 361. The first transmission belt 364 connects the first driving pulley 362 and the first driven pulley 363. The second motor 361 is electrically connected to the controller 6. In use, the controller 6 controls the second motor 361 to drive the first driving pulley 362 to rotate. The first driving pulley 362 drives the first driven pulley 363 to rotate via the first transmission belt 364. The first driven pulley 363 drives the transmission tube 31 to rotate, thereby driving the transmission tube 31 to rotate.

[0032] Specifically, the cutting and shaping mechanism 5 includes an upper positioning plate 51, a lower positioning plate 52, several shaping claw blocks 53, a driven gear 54, a drive gear 55, and a third motor 56. The upper positioning plate 51 and the lower positioning plate 52 are spaced apart vertically and fixedly connected by bolts. A vertical through hole 511 is opened in the center of the upper positioning plate 51 and the lower positioning plate 52. The upper positioning plate 51 is connected to the frame 1 and the through hole 511 is aligned with the bottom of the filling tube 24. Several shaping claw blocks 53 are slidably connected between the upper positioning plate 51 and the lower positioning plate 52 and are arranged in a ring around the through hole 511. The upper positioning plate 51 and the lower positioning plate 52 are respectively provided with sliding grooves 571. The upper and lower surfaces of the shaping claw blocks 53 are respectively connected with sliding pins 572, and the sliding pins 572 are slidably connected to the sliding grooves 571. When the sliding pin 572 slides along the slide groove 571, several pinching claw blocks 53 push each other and unfold into a ring around the through hole 511 or close towards the center of the through hole 511. When the pinching claw blocks 53 are closed, their tops form a flat surface and their bottoms form a bun pleat shape 531. The driven gear plate 54 is rotatably connected to the bottom of the lower positioning plate 52. The driven gear plate 54 has a drive groove 541. The lower surface of any pinching claw block 53 is connected to a drive pin 58. The drive pin 58 passes through the slide groove 571 of the lower positioning plate 52 and is slidably connected in the drive groove 541. The third motor 56 is connected to the frame 1. The driving gear 55 is connected to the output shaft of the third motor 56. The driving gear 55 meshes with the driven gear plate 54. The third motor 56 is electrically connected to the controller 6.

[0033] In use, the controller 6 controls the third motor 56 to drive the drive gear 55 to rotate, which in turn drives the driven gear 54 to rotate. Since the drive pin 58 passes through the groove 571 of the lower positioning plate 52 and is slidably connected to the drive groove 541 of the driven gear 54, the rotation of the driven gear 54 drives the drive pin 58 and the pinching claw blocks 53. The pinching claw blocks 53 slide along the grooves 571 of the upper and lower positioning plates 51 via the sliding pin 572, causing several pinching claw blocks 53 to push each other and unfold into a ring around the through hole 511 or close towards the center of the through hole 511, thereby achieving the pressing and cutting of the dough tube towards the center. Because the top of the pinching claw blocks 53 forms a flat surface and the bottom forms a bun pleat shape 531 when closed, when the dough tube is cut, the bottom of the upper part of the dough tube forms a flat, closed end, and the top of the lower part of the filled dough tube forms a closed bun pleat, thus forming a bun.

[0034] Furthermore, a first vibrator 241 is provided on the wall of the filling tube 24 to vibrate the filling tube 24 and prevent the filling from sticking to the wall of the filling tube 24.

[0035] Furthermore, a second vibrator 212 is provided on the outer wall of the filling hopper 21 to vibrate the filling hopper 21, so that the filling is vibrated and compacted, and piled up at the bottom of the filling hopper 21, ensuring that the filling is effectively pushed out of the filling outlet 211 when the auger 22 rotates.

[0036] Furthermore, the bottom of the cutting and kneading mechanism 5 is provided with a swing arm transmission mechanism 7. The swing arm transmission mechanism 7 includes a fixed plate 71, a fourth motor 72, a swing arm plate 73, a second driving pulley 74, a second driven pulley 75, and a second transmission belt 76. The fixed plate 71 is connected to the frame 1, and the fourth motor 72 is connected to the fixed plate 71. One end of the swing arm plate 73 is provided with a rotating shaft 731 and is rotatably connected to the fixed plate 71 through the rotating shaft 731. The second driven pulley 75 is connected to the rotating shaft 731, the second driving pulley 74 is connected to the output shaft of the fourth motor 72, and the second transmission belt 76 is connected to the second driving pulley 74 and the second driven pulley 75. The fourth motor 72 is electrically connected to the controller 6. In use, the controller 6 controls the cutting and shaping mechanism 5 to squeeze and cut the dough tube to form a bun, while simultaneously controlling the fourth motor 72 to drive the second drive pulley 74 to rotate. The second drive pulley 74 drives the second driven pulley 75 to rotate via the second transmission belt 76. The second driven pulley 75 drives the swing arm plate 73 to rotate via the rotating shaft 731, so that the free end of the swing arm plate 73 rests under the cutting and shaping mechanism 5. After the cutting and shaping mechanism 5 cuts the dough tube, the bun falls onto the swing arm plate 73 and is then transported to the outside of the bun machine frame 1 via the swing arm plate 73. This eliminates the need for the operator to bend over to catch the bun under the cutting and shaping mechanism 5, making it easier for the operator to pick up the bun and improving efficiency.

[0037] Furthermore, the driven gear disk 54 includes a circular disk body and a sector gear. The sector gear is connected to the outer circle of the circular disk body and protrudes from it. The drive groove 541 is formed on the circular disk body. The sector gear meshes with the drive gear 55. A proximity switch 59 is respectively provided on both sides of the sector gear at the bottom of the lower positioning plate 52. The proximity switch 59 is electrically connected to the controller 6. This utility model sets the driven gear disk 54 with a sector gear protruding from the circular disk body, and sets a proximity switch 59 at a specific distance on both sides of the sector gear. When the driven gear disk 54 rotates in both directions, the proximity switch 59 detects the sector gear and sends an electrical signal to the controller 6. The controller 6 controls the third motor 56 to stop, avoiding damage to the cutting and pinching mechanism 5 caused by over-rotation of the driven gear disk 54.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steamed bun machine characterized by comprising: include: Rack (1); The filling feeding mechanism (2) includes a filling hopper (21), an auger (22), a first motor (23), and a filling tube (24). The filling hopper (21) is located on the top of the frame (1). The filling hopper (21) opens upward and has a filling outlet (211) at one end. The auger (22) is rotatably and horizontally located at the bottom of the filling hopper (21) and the front end of the auger (22) is located outside the filling outlet (211). The first motor (23) is connected to the rear end of the auger (22) to drive the auger (22) to rotate. The filling tube (24) is vertically located below the filling outlet (211) and the top of the filling tube (24) is a funnel opening (241). Dough conveyor belt (4) is used to transport dough; The dough tube forming mechanism (3) is sleeved on the lower end of the outer side of the filling tube (24), and the dough tube forming mechanism (3) is connected to the end of the dough supply conveyor belt (4) to extrude the dough conveyed by the dough supply conveyor belt (4) downward to form a dough tube sleeved on the lower end of the outer side of the filling tube (24). And a cutting and shaping mechanism (5), which is located below the filling tube (24) to press and cut the dough tube formed by the dough tube forming mechanism (3) towards the center and form bun pleats on the top of the cut dough tube.

2. The steamed stuffed bun machine according to claim 1, characterized in that, The frame (1) is equipped with a controller (6) and a laser sensor (7). The laser sensor (7) is located at the bottom of the cutting and shaping mechanism (5). The controller (6), the laser sensor (7), the first motor (23), the dough conveyor belt (4), the dough tube forming mechanism (3), and the cutting and shaping mechanism (5) are electrically connected respectively.

3. The steamed stuffed bun machine according to claim 2, characterized in that, The dough forming mechanism (3) includes a transmission pipe (31), a baffle plate (32), a receiving plate (33), a forming pipe (34), and a driving mechanism. The transmission pipe (31) is sleeved on the outside of the filling pipe (24), and the lower end of the filling pipe (24) is longer than the transmission pipe (31). A screw conveyor blade (35) is provided on the outer wall of the transmission pipe (31). The receiving plate (33) is horizontally connected to the end of the dough feeding conveyor belt (4), and the receiving plate (33) has an opening that fits over the screw conveyor blade (35). The baffle plate (32) is vertically installed on the receiving plate (34). 3) On the upper surface, the baffle plate (32) is open on one side facing the feeding conveyor belt (4) and the other side is enclosed on the outer circular surface of the auger blade (35). The forming tube (34) is connected to the bottom of the receiving panel (33) and sleeved on the lower outer side of the auger blade (35) and the filling tube (24). The lower end of the forming tube (34) is closed so that a thickness gap is formed between the inner tube wall and the outer tube wall of the filling tube (24). The driving mechanism is connected to the transmission tube (31) for driving the transmission tube (31) to rotate. The driving mechanism and the controller (6) are electrically connected.

4. The steamed stuffed bun machine according to claim 3, characterized in that, The drive mechanism includes a second motor (361), a first driving pulley (362), a first driven pulley (363), and a first transmission belt (364). The first driven pulley (363) is sleeved on the transmission tube (31). The second motor (361) is connected to the frame (1). The first driving pulley (362) is connected to the output shaft of the second motor (361). The first transmission belt (364) is connected to the first driving pulley (362) and the first driven pulley (363). The second motor (361) is electrically connected to the controller (6).

5. A steamed bun machine according to claim 2, characterized in that, The cutting and kneading mechanism (5) includes an upper positioning plate (51), a lower positioning plate (52), several kneading claw blocks (53), a driven gear plate (54), a drive gear (55), and a third motor (56). The upper positioning plate (51) and the lower positioning plate (52) are spaced apart vertically and fixedly connected by bolts. The upper positioning plate (51) and the lower positioning plate (52) have vertical through holes (511) at their centers. The upper positioning plate (51) is connected to the frame. (1) The upper through hole (511) is aligned with the bottom of the filling tube (24). Several pinching claw blocks (53) are slidably connected between the upper positioning plate (51) and the lower positioning plate (52) and arranged in a ring around the through hole (511). The upper positioning plate (51) and the lower positioning plate (52) are respectively provided with sliding grooves (571). The upper and lower surfaces of the pinching claw blocks (53) are respectively connected with sliding pins (572). The sliding pins (572) are slidably connected to the sliding grooves (571, 572, ... 1) When the sliding pin (572) slides along the slide groove (571), several pinching claw blocks (53) push each other and unfold into a ring around the through hole (511) or close towards the center of the through hole (511). When the several pinching claw blocks (53) are closed, their tops form a flat surface and their bottoms form a bun pleat shape (531). The driven gear plate (54) is rotatably connected to the bottom of the lower positioning plate (52). The driven gear plate (54) has a drive groove (541) on it. The lower surface of the pinching claw block (53) is connected to a drive pin (58). The drive pin (58) passes through the slide groove (571) of the lower positioning plate (52) and is slidably connected in the drive groove (541). The third motor (56) is connected to the frame (1). The drive gear (55) is connected to the output shaft of the third motor (56). The drive gear (55) meshes with the driven gear plate (54). The third motor (56) is electrically connected to the controller (6).

6. The steamed stuffed bun machine according to claim 1, wherein The filling tube (24) is equipped with a first vibrator (242) on its tube wall.

7. The steamed stuffed bun machine according to claim 1, wherein A second vibrator (212) is provided on the outer wall of the filling hopper (21).

8. A steamed bun machine according to claim 5, characterized in that, Below the cutting and kneading mechanism (5) is a swing arm transmission mechanism (8). The swing arm transmission mechanism (8) includes a fixed plate (81), a fourth motor (82), a swing arm plate (83), a second driving pulley (84), a second driven pulley (85), and a second transmission belt (86). The fixed plate (81) is connected to the frame (1). The fourth motor (82) is connected to the fixed plate (81). One end of the swing arm plate (83) is provided with a rotating shaft (831) and is rotatably connected to the fixed plate (81) through the rotating shaft (831). The second driven pulley (85) is connected to the rotating shaft (831). The second driving pulley (84) is connected to the output shaft of the fourth motor (82). The second transmission belt (86) is connected to the second driving pulley (84) and the second driven pulley (85). The fourth motor (82) and the controller (6) are electrically connected.

9. The steamed stuffed bun machine according to claim 5, characterized in that, The driven gear (54) includes a circular disc body and a sector gear. The sector gear is connected to the outer circle of the circular disc body and protrudes from the circular disc body. The drive groove (541) is opened on the circular disc body. The sector gear is meshed with the drive gear (55). The bottom of the lower positioning plate (52) is provided with a proximity switch (59) on both sides of the sector gear. The proximity switch (59) is electrically connected to the controller (6).

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