Wrinkle forming device of steamed stuffed bun making machine

Abstract

The invention discloses a wrinkle forming device of a steamed stuffed bun making machine, and relates to the field of steamed stuffed bun making equipment.The wrinkle forming device comprises a rack, the rack is sequentially provided with a stuffing pressing component, an indentation component and a folding component from top to bottom, the stuffing pressing component comprises a pre-pressing ring, and the pre-pressing ring has the freedom degree of moving in the vertical direction; a plurality of pre-pressing pieces are fixed to the bottom of the pre-pressing ring in the circumferential direction of the pre-pressing ring, the creasing component comprises a rotating disc and creasing pieces, the multiple creasing pieces are arranged on the inner ring of the rotating disc in the circumferential direction of the rotating disc, the folding component comprises a plurality of wrapper receiving pieces arranged in a circumferential array, and the wrapper receiving pieces are provided with hinge points of the horizontal axis; wrappers are placed on the wrapper receiving pieces, the multiple wrapper receiving pieces and the multiple pre-pressing pieces are sequentially staggered to form clearance fit so that dents can be formed in the wrappers in advance, the wrapper receiving pieces deflect towards the annular space from hinge points so that the wrappers can be folded to be in a vertical state, wrinkles can be formed on the peripheries of the wrappers in cooperation with the creasing pieces, and the effect is closer to the traditional manual making effect; even if the stuffed product is folded after being cooked, the stuffed product does not rebound.

Description

Technical Field

[0001] The invention relates to the field of steamed bun making equipment, in particular to a pleat forming device for a steamed bun making machine. Background Art

[0002] Currently, the most common steamed bun making machines on the market can be divided into extrusion and rolling types based on the wrapping method. The extrusion type steamed bun making principle is to use a dough hopper and a filling hopper. The dough at the outer outlet is squeezed by an auger, and then the dough is cut by a knife. The upper part of the cross section is patterned, and the lower part is flattened by a flattening device to form the bottom of the bun.

[0003] The rolling-type bun machine places the dough sheet on the dough pulley, passes it through three thickness-adjustable dough pressing wheels, gradually pats and rolls it thin, and presses out standard dough that meets the needs. Then, the filling feeder is turned on, and the discharge nozzle specifications required for the product are selected. The dough is wrapped with the filling and rolled into long strips through the winding wheel, auxiliary winding wheel and other devices. The pinching device is turned on and the pinching length is set to produce products of the required specifications.

[0004] The advantage of the extrusion type bun machine is that the buns made are flat and beautiful in appearance. The buns made by the calendering type bun machine can have wrinkles that imitate handmade ones, but the wrinkles are formed by the sliding of the knife. The pattern of the stuffed product is shallow after steaming, which is quite different from the wrinkles made by hand. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a pleat forming device for a steamed bun making machine to solve the deficiencies of the prior art.

[0006] The object of the present invention is achieved through the following technical solutions: a pleat forming device for a steamed bun machine, comprising a frame, wherein the frame is provided with a filling pressing component, an indentation component and a gathering component in sequence from top to bottom, the filling pressing component comprises a pre-pressing ring, the pre-pressing ring has the freedom to move in the vertical direction, the bottom of the pre-pressing ring is fixed with a plurality of pre-pressing sheets along its own circumferential direction, the indentation component comprises a rotating disk and an indentation sheet, the rotating disk is hollow, the inner ring of the rotating disk is provided with a plurality of indentation sheets along its own circumferential direction, the indentation sheet has the freedom to move radially along the rotating disk, the gathering component comprises a plurality of skin-joining sheets in a circumferential array, an annular space is formed between the plurality of skin-joining sheets, and the skin-joining sheets have a hinge point with a horizontal axis; The dough is placed on the skin-joining pieces, and several of the skin-joining pieces are interlaced with several pre-pressing pieces in sequence to form a gap fit, which is used to pre-form indentations on the dough. The skin-joining pieces are deflected toward the annular space at the hinge point to make the dough gather into an upright state, and cooperate with the indentation pieces to form folds around the dough.

[0007] Furthermore, the folding component also includes a fixed mounting plate, a fixed disk, a lifting plate, a lifting disk, an outer connecting rod piece and an inner connecting rod piece, one end of the fixed mounting plate is connected to the frame, and the other end is fixedly connected to the fixed disk, a plurality of outer connecting rod pieces are evenly distributed on the fixed disk along its own circumferential direction, the lifting disk is coaxially arranged on the inner ring of the fixed disk, the lifting plate is connected to the lifting disk, and the lifting plate has the freedom to move axially along the lifting disk, and a plurality of inner connecting rod pieces are hinged on the lifting disk along its own circumferential direction, the inner connecting rod pieces, the outer connecting rod pieces and the skin connecting pieces correspond one to one, the skin connecting piece is in a 7-shape, the closed end of the skin connecting piece is hinged to the inner connecting rod piece, and the bottom end of the opening of the skin connecting piece is hinged to the outer connecting rod piece.

[0008] Furthermore, the folding component also includes a folding cylinder, the cylinder body of the folding cylinder is installed on a fixed mounting plate, the telescopic shaft of the folding cylinder is connected to the lifting plate, and the lifting plate is provided with a slot for the outer connecting rod to pass through. The lifting plate and the fixed plate are both hollow, used to form a feeding space for the buns to pass through.

[0009] Furthermore, the indentation component also includes an indentation mounting plate, an indentation swing arm, an indentation connecting rod, a sliding rod, an indentation fixing plate and a groove slider seat. The indentation mounting plate is fixedly mounted on the frame, the indentation fixing plate is connected to the indentation mounting plate, the rotating disk is rotatably mounted on the indentation fixing plate, the groove slider seat is coaxially fixed on the indentation fixing plate, the groove slider seat is an annular structure, an indentation servo motor is mounted on the indentation mounting plate, the output shaft of the indentation servo motor is hinged to one end of the indentation swing arm, and the indentation swing arm The other end is hinged to the indentation connecting rod, which is hinged on the rotating disk. An annular cavity is provided in the rotating disk, and the annular cavity is connected to the inner ring of the rotating disk. The top surface of the rotating disk is provided with a plurality of arc grooves along its own circumferential direction, and the arc grooves are connected to the annular cavity. The plurality of arc grooves correspond one to one with a plurality of indentation sheets. The indentation sheet is connected with a sliding rod, and the sliding rod extends to the annular cavity and a roller is installed therein. The roller fits in the arc groove, and a sliding groove is provided on the groove slider seat, and the sliding rod slides and fits into the sliding groove.

[0010] Furthermore, the stuffing pressing component also includes a stuffing pressing fixing plate, a stuffing pressing mounting plate, an inner stuffing tube, an outer stuffing tube and a pre-compression cylinder. The stuffing pressing fixing plate is installed on the frame, the stuffing pressing mounting plate is slidably installed on the stuffing pressing fixing plate, the stuffing pressing mounting plate is installed with an outer stuffing tube lifting cylinder, the telescopic shaft of the outer stuffing tube lifting cylinder is connected to the outer stuffing tube, the inner stuffing tube passes through the top of the outer stuffing tube, and the inner stuffing tube has the freedom to move along the axial direction of the outer stuffing tube. The bottom of the stuffing pressing mounting plate is connected to a compression spring column, the bottom of the compression spring column is connected to the skin suction plate, the compression spring column is sleeved with a compression spring, the compression spring is connected to the skin suction plate, the pre-compression cylinder is installed on the stuffing pressing mounting plate, and the telescopic shaft of the pre-compression cylinder is connected to the pre-compression ring.

[0011] The inner filling tube servo motor is installed on the inner filling tube servo motor, and the output shaft of the inner filling tube servo motor is connected to the lifting screw, and the screw nut mounting block is threadedly mounted on the lifting screw of the inner filling tube, and the screw nut mounting block is slidably adapted to the guide rail, and the inner filling tube is installed on the inner filling tube thread mounting block.

[0012] Furthermore, a sealing component is provided below the folding component, and the sealing component includes a plurality of sealing blades, which are arranged in a circular array on a horizontal plane. The sealing blades have the freedom to move radially toward the array circle, and the sealing component seals the wrinkled dough through the sealing blades.

[0013] Furthermore, the sealing component also includes a sealing mounting plate, a sealing swing arm, a sealing connecting rod, a connecting piece, a rotating active swing arm, a copper shaft, a rotating driven swing arm, a lower fixed plate and an upper fixed plate. The upper fixed plate and the lower fixed plate are arranged at intervals in the vertical direction and are connected together by a plurality of connecting columns. The rotating active swing arm and the plurality of rotating driven swing arms are evenly distributed in the circumferential direction of the lower fixed plate. The rotating driven swing arm and the rotating active swing arm are both fixed with a copper shaft, and the copper shaft movably passes through the lower fixed plate for rotational connection. On the upper fixed plate, a sealing blade is fixedly sleeved on the copper shaft, and the sealing blade is located between the upper fixed plate and the lower fixed plate. The sealing mounting plate is installed on the frame, and a sealing servo motor is installed on the sealing mounting plate. The output shaft of the sealing servo motor is connected to the sealing swing arm, and the two ends of the sealing connecting rod are respectively hinged on the sealing swing arm and the rotating active swing arm. The rotating active swing arm is hinged to the adjacent rotating driven swing arm through a connecting piece, and the adjacent rotating driven swing arms are hinged through a connecting piece.

[0014] Furthermore, it also includes a pallet lifting component, which includes a pallet. The pallet has the freedom to move in the vertical direction, and the pallet is used to support the dough for the production of wrinkled buns.

[0015] Furthermore, the support plate lifting component also includes a mounting plate, a push plate, a support plate screw slider seat, a push cylinder and a support plate servo motor, the mounting plate is fixedly connected to the frame, the mounting plate is rotatably provided with a ball screw, the mounting plate is fixed with a support rail, the support plate screw slider seat is threadedly sleeved on the ball screw, and the support plate screw slider seat is slidably assembled on the support rail. The bottom of the support plate is connected to the support plate support rod, the support plate support plate is connected to the support plate screw slider seat, the push cylinder is horizontally arranged on the mounting plate, the telescopic shaft of the push cylinder is connected to the push plate, and the push plate is used to push the buns on the support plate into the discharging conveying component, the mounting plate is installed with a support servo motor, the output shaft of the support servo motor is connected to a synchronous pulley, the ball screw is connected to a driven pulley, and the driven pulley is connected to the synchronous pulley through a synchronous belt transmission.

[0016] The beneficial effects of the present invention are: 1. The dough falls on the dough connecting piece, and the dough connecting piece and the pre-pressing piece are arranged alternately along the circumferential direction. The dough is pre-pressed to form a dent through the cooperation of the dough connecting piece and the pre-pressing piece. The dough is then gathered by the deflection of the dough connecting piece. Finally, the indentation piece acts on the position of the dent to form folds. The folds are formed by indentation, which is closer to the effect of traditional handmade products. Even after the stuffed product is steamed, the folds will not rebound.

[0017] 2. Use pre-made dough, which is suitable for factories and stores. Pre-made dough has the advantages of high production efficiency, good dough quality, good taste, saving manpower and time, and a variety of choices.

[0018] 3. Modular design, each module can exist and operate independently, making the entire production process smoother, reducing downtime and failure rate. The module adopts servo drive, which is convenient for adjustment and ensures equipment stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a pleat forming mechanism of a steamed bun making machine according to the present invention; Figure 2 This is a front view of the entire pleat forming mechanism of a steamed bun making machine of the present invention; Figure 3 A three-dimensional diagram of a gathering component in a pleat forming mechanism of a steamed bun making machine according to the present invention; Figure 4 This is a front view of a gathering component in a pleat forming mechanism of a steamed bun making machine according to the present invention; Figure 5 This is a three-dimensional diagram of a stuffing pressing component in a pleat forming mechanism of a steamed bun making machine according to the present invention; Figure 6 This is a side view of a stuffing pressing component in a pleat forming mechanism of a steamed bun making machine according to the present invention; Figure 7 A three-dimensional diagram of an indentation component in a wrinkle forming mechanism of a steamed bun making machine according to the present invention; Figure 8 This is a schematic diagram of the partial structure of the indentation component in the wrinkle forming mechanism of a steamed bun making machine of the present invention; Figure 9 A three-dimensional diagram of a sealing component in a pleat forming mechanism of a steamed bun making machine according to the present invention; Figure 10 This is a top view of a sealing component in a pleat forming mechanism of a steamed bun making machine according to the present invention; Figure 11 This is a bottom view of a sealing component in a pleat forming mechanism of a steamed bun making machine according to the present invention; Figure 12 A three-dimensional diagram of a support plate lifting component in a pleat forming mechanism of a steamed bun machine according to the present invention; Figure 13 This is a side view of a support plate lifting component in a pleat forming mechanism of a steamed bun machine according to the present invention; Figure 14 A three-dimensional diagram of a filling injection component in a pleat forming mechanism of a steamed bun making machine according to the present invention; Figure 15 This is a schematic diagram of the assembly of a transfer valve in the pleat forming mechanism of a steamed bun making machine according to the present invention; Figure 16 This is a three-dimensional diagram of a feed belt telescopic component in a pleat forming mechanism of a steamed bun machine according to the present invention; Figure 17 This is a front view of a feed belt telescopic component in a pleat forming mechanism of a steamed bun machine according to the present invention; Figure 18 This is a side view of a feed belt telescopic component in a pleat forming mechanism of a steamed bun machine according to the present invention; Figure 19 This is a three-dimensional diagram of a material discharging and conveying component in a pleat forming mechanism of a steamed bun making machine according to the present invention; Figure 20 This is a front view of a material discharging and conveying component in a pleat forming mechanism of a steamed bun making machine according to the present invention; In the figure, 1-frame, 2-feed belt telescopic component, 3-discharging conveying component, 4-stuffing component, 5-indentation component, 6-folding component, 7-sealing component, 8-support plate lifting component, 9-skin suction plate, 10-pre-pressing sheet, 11-rotating disk, 12-indentation sheet, 13-skin connecting sheet, 14-support plate, 15-fixed mounting plate, 16-fixed disk, 17-lifting plate, 18-lifting disk, 19-outer connecting rod sheet, 20-inner connecting rod sheet, 21-folding cylinder, 22-indentation mounting plate, 23-indentation swing arm, 24-indentation connecting rod, 25-sliding rod, 26-indentation fixed plate, 2 7-groove slider seat, 28-indentation servo motor, 29-arc groove, 30-roller, 31-sealing mounting plate, 32-sealing swing arm, 33-sealing connecting rod, 34-connecting piece, 35-rotating active swing arm, 36-copper shaft, 37-rotating driven swing arm, 38-sealing blade, 39-lower fixed plate, 40-upper fixed plate, 41-connecting column, 42-sealing servo motor, 43-stuffing fixing plate, 44-stuffing mounting plate, 45-inner filling tube, 46-outer filling tube, 47-pre-pressing cylinder, 48-compression spring column, 49-compression spring, 50-lifting screw, 51-inner filling tube Lifting screw, 52-guide rail, 53-stuffing tube guide rail, 54-lifting servo motor, 55-screw nut mounting block, 56-stuffing tube servo motor, 57-stuffing tube thread mounting block, 58-jet hole, 59-hopper, 60-rotary valve, 61-piston, 62-valve body, 63-switching channel, 64-stuffing pipe, 65-stuffing swing arm, 66-stuffing cylinder, 67-stuffing servo motor, 68-stuffing screw, 69-tapered auger, 70-auger servo motor, 71-mounting plate, 72-push plate, 73-support plate screw slider seat, 74-push cylinder, 75-support plate Servo motor, 76-ball screw, 77-pallet guide rail, 78-pallet support rod, 79-synchronous pulley, 80-synchronous belt, 81-feed mounting plate, 82-feed synchronous pulley, 83-feed guide rail, 84-moving plate, 85-feed synchronous belt, 86-drive plate, 87-feed servo motor, 88-motor, 89-belt driving pulley, 90-belt, 91-discharge mounting plate, 92-discharge belt motor, 93-discharge belt, 94-driving roller, 95-shaping cylinder, 96-pressing plate, 97-tensioning roller, 98-fiber optic electric eye, 99-photoelectric switch. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0021] Example 1 like Figures 1 to 20As shown, a pleat forming device of a steamed bun machine includes a frame 1, and the frame 1 is provided with a filling pressing part 4, an indentation part 5 and a gathering part 6 in sequence from top to bottom. The filling pressing part 4 includes a pre-pressing ring, which has the freedom to move in the vertical direction, and a plurality of pre-pressing sheets 10 are fixed to the bottom of the pre-pressing ring along its own circumferential direction. The indentation part 5 includes a rotating disk 11 and an indentation sheet 12. The rotating disk 11 is hollow, and a plurality of indentation sheets 12 are provided on the inner ring of the rotating disk 11 along its own circumferential direction. The indentation sheet 12 has the freedom to move radially along the rotating disk 11. The gathering part 6 includes a plurality of skin-joining sheets 13 in a circumferential array, and an annular space is formed between the plurality of skin-joining sheets 13, and the skin-joining sheets 13 have a hinge point with a horizontal axis; the dough is placed on the skin-joining sheets 13, and the plurality of skin-joining sheets 13 are fixed to the bottom of the pre-pressing ring along its own circumferential direction. The dough is staggered with several pre-pressing sheets 10 in sequence to form a gap fit, which is used to pre-form indentations on the dough. The dough connecting sheet 13 is deflected toward the annular space at the hinge point to make the dough gather into an upright state, and cooperates with the indentation sheet 12 to form wrinkles around the dough. A sealing component 7 is provided below the gathering component 6. The sealing component 7 includes several sealing blades 38. The several sealing blades 38 are arranged in a circular array on the horizontal plane. The sealing blades 38 have the freedom to move radially toward the array circle. The sealing component 7 seals the wrinkled dough through the sealing blades 38, and also includes a tray lifting component 8 provided below the sealing component 7. The tray lifting component 8 includes a tray 14. The tray 14 has the freedom to move in the vertical direction. The tray 14 is used to support the dough for the production of wrinkled buns. The dough is preformed in advance, and the dough preferably adopts a circular structure that is thick in the middle and thin around the edges. Initially, the indentation piece 12 of the indentation component 5 is in a fully open state, and the skin-joining piece 13 of the retracting component 6 is in an open skin-joining state. Then the supporting plate 14 moves upward to catch the lowered dough. At this time, the middle of the dough is supported by the supporting plate 14, and the four sides of the dough are supported by the skin-joining piece 13. Then, the pre-pressing ring drives the pre-pressing piece 10 to move downward, and squeezes through the gap between the pre-pressing piece 10 and the skin-joining piece 13 to form indentations around the dough. After the filling is injected into the dough, the filling pressing component 4 is reset upward, and then the skin-joining piece 13 rotates. , so that the skin-joining piece 13 is deflected toward the center of the dough, thereby gathering the four sides of the dough into an upright state, and then, the indentation piece 12 moves toward the center of the rotating disk 11, so that the indentation piece squeezes the indentation to form wrinkles, and finally the sealing blade 38 of the sealing component 7 is used to seal the dough to complete the production of wrinkled buns, and then the supporting plate 14 drives the finished buns to move downward, and after the buns are sent out, the production of wrinkled buns is realized, and each component is reset and the above operation is repeated to realize the batch production of buns. The wrinkles are formed by indentation, which is closer to the effect of traditional handmade production. Even if the stuffed product is steamed, the wrinkles will not rebound.

[0022] Example 2 Based on the first embodiment, Figure 1 and Figure 2As shown, in order to realize the automated production of wrinkled buns, the frame 1 is also provided with a feed belt telescopic component 2 and a discharging conveying component 3, and a stuffing pressing component 4, an indentation component 5, a gathering component 6, a sealing component 7 and a support plate lifting component 8 are located between the feed belt telescopic component 2 and the discharging conveying component 3. The stuffing pressing component 4 also includes a skin suction plate 9 that moves in the vertical direction. The skin suction plate 9 uses negative pressure to absorb the dough. Specifically, a negative pressure cavity is provided in the skin suction plate 9, and a number of negative pressure holes connected to the negative pressure cavity are provided at the bottom of the skin suction plate 9. The skin suction plate 9 is connected to the negative pressure equipment through a pipeline, and the dough is transported to the working range of the stuffing pressing component 4 through the feed belt telescopic component 2, and the dough is adsorbed by the skin suction plate 9 to be placed on the support plate 14. After the wrinkled buns are made, the buns are transported to the working range of the discharging conveying component 3 through the support plate 14, and the finished buns are sent out through the discharging conveying component 3 to complete the automated production of wrinkled buns.

[0023] Example 3 Based on the second embodiment, Figures 16 to 20As shown, the feeding belt telescopic component 2 is arranged on one side of the stuffing pressing component 4, and the feeding belt telescopic component 2 includes a feeding mounting plate 81, a feeding synchronous pulley 82, a feeding guide rail 83 and a movable plate 84. The feeding mounting plate 81 is fixed on the frame 1, and the feeding mounting plate 81 is rotated along the feeding direction of the dough and is provided with two feeding synchronous pulleys 82. The two feeding synchronous pulleys 82 are driven by the feeding synchronous belt 85. The feeding guide rail 83 is fixed on the feeding mounting plate 81, and the movable plate 84 is slidably assembled on the feeding guide rail 83. The side wall of the plate 84 is connected to the feeding synchronous belt 85 through the driving plate 86. The feeding mounting plate 81 is equipped with a feeding servo motor 87 and a motor 88. The output shaft of the feeding servo motor 87 is connected to one of the feeding synchronous pulleys 82. The two ends of the movable plate 81 are provided with a rotating shaft. The feeding mounting plate 81 is provided with a belt driving pulley 89. The output shaft of the motor 88 is connected to the belt driving pulley 89. The belt driving pulley 89 is connected to the rotating shaft through the belt 90. The dough is placed on the belt 90 and the dough is moved by the motor. 88 drives the belt driving wheel 89 to rotate, and the belt driving wheel 89 drives the belt 90 to move, and the dough is transported to the filling pressing component 4 through the belt 90. When the dough is transported to the end of the movable plate 84, the conveying stops, and the feeding servo motor 87 drives the synchronous pulley 82 to rotate, thereby the synchronous belt 85 is activated, and the synchronous belt 85 drives the movable plate 84 to move on the feeding guide rail 83 through the driving plate 86, so that the end of the movable plate 84 moves to the right below the filling pressing component 4, so that the skin suction plate 9 moves downward to smoothly absorb the dough. When the skin suction plate 9 absorbs the dough and moves upward to separate from the belt 90, the feeding servo motor 87 reverses and drives the movable plate 84 to reset, so that the skin suction plate 9 can move downward to place the dough on the support plate 14 and the skin connecting piece 13. During specific implementation, a fiber optic electric eye 98 is installed on the frame 1. The fiber optic electric eye 98 detects whether the dough on the belt 90 is transported to the end of the movable plate 84. When the fiber optic electric eye 98 detects that the dough is in place, the movable plate 84 moves at a fixed length to transport the dough to the bottom of the skin suction plate 9, so that the dough can be accurately loaded.

[0024] Example 4 Based on the third embodiment, Figure 1 、 Figures 12 to 20As shown, it also includes a pallet lifting component 8, the pallet lifting component 8 includes a pallet 14, the pallet 14 has the freedom to move in the vertical direction, the pallet 14 is used to carry the dough for the production of wrinkled buns, the pallet lifting component 8 also includes a mounting plate 71, a push plate 72, a pallet screw slider seat 73, a pushing cylinder 74 and a pallet servo motor 75, the mounting plate 71 is fixedly connected to the frame 1, a ball screw 76 is rotatably provided on the mounting plate 71, a pallet guide rail 77 is fixed on the mounting plate 71, the pallet screw slider seat 73 is threadedly mounted on the ball screw 76, and the pallet screw slider seat 73 is slidably assembled on the pallet guide rail 77, the bottom of the pallet 14 is connected to a pallet support rod 78, the pallet support plate 78 is connected to the pallet screw slider seat 73, the pushing cylinder 74 and the pallet servo motor 75 The cylinder 74 is arranged horizontally on the mounting plate 71, and the telescopic shaft of the pushing cylinder 74 is connected to the pushing plate 72. The pushing plate 72 is used to push the buns on the support plate 14 into the discharging conveying component 3. The support plate servo motor 78 is installed on the mounting plate 71. The output shaft of the support plate servo motor 78 is connected to the synchronous pulley 79, and the ball screw 76 is connected to the driven pulley. The driven pulley is connected to the synchronous pulley 79 through the synchronous belt 80. The discharging conveying component 3 includes a discharging mounting plate 91, a discharging belt motor 92, a discharging belt 93, an active roller 94, a shaping cylinder 95 and a pressing plate 96. The discharging mounting plate 91 is installed on the frame 1, and the discharging belt motor 92 is installed on the discharging mounting plate 91. The output shaft of the discharging belt motor 92 is connected to the active roller 94. Two discharging shafts are arranged at intervals along the discharging direction of the buns on the mounting plate 91. The discharging shaft is connected to the active roller 94 through a discharging belt 93. The shaping cylinder 95 is vertically mounted on the discharging mounting plate 91. The telescopic shaft of the shaping cylinder 95 is connected to the pressure plate 96. The pressure plate 96 is located above the discharging belt 93. A tensioning roller 97 is rotatably installed on the discharging mounting plate 91. The tensioning roller 97 is used to keep the discharging belt 93 in a tensioned state. The pallet servo motor 78 drives the synchronous pulley 79 to rotate. The synchronous pulley 79 drives the driven pulley to rotate through the synchronous belt 80. The driven pulley drives the ball screw 79 to rotate, thereby driving the pallet screw slider seat 73 to slide on the pallet guide rail 77. The pallet screw slider seat 73 drives the pallet through the pallet support rod 78 The plate 14 moves up and down, thereby driving the dough to move to the sealing part 7 for sealing. After the sealing is completed, the buns are driven downward to the moving path of the push plate 72. At this time, the supporting plate 14 is flush with the discharge belt 93, and the pushing cylinder 74 drives the pushing plate 72 to move, thereby pushing the buns on the supporting plate 14 onto the discharge belt 93, completing the discharge operation of the buns. In specific implementation, an adsorption cavity is provided inside the supporting plate 14, and a plurality of small holes are opened on the top of the supporting plate 14, which are connected to the adsorption cavity. The supporting plate support rod 78 is hollow, and one end of the supporting plate support rod 78 is connected to the adsorption cavity, and the other end is connected to the negative pressure device through a hose, so that the supporting plate 14 can negatively pressure adsorb the dough to ensure that the dough will not deviate during the production process of the buns.The discharge belt motor 82 drives the active roller 94 to rotate, which in turn drives the discharge belt 93, thereby conveying the buns on the discharge belt 93 to the position directly below the pressing plate 96. The shaping cylinder 95 then drives the pressing plate 96 downward, causing it to press the top of the buns, flattening and shaping them. Finally, the shaped buns are discharged via the discharge belt 93. In specific implementation, a photoelectric switch 99 is installed on the discharge mounting plate 91 to detect whether the buns have been conveyed into the working range of the pressing plate 96, making the shaping process more precise.

[0025] Example 5 Based on the fourth embodiment, Figures 1 to 4 As shown, the folding component 6 also includes a fixed mounting plate 15, a fixed disk 16, a lifting plate 17, a lifting disk 18, an outer connecting rod piece 19 and an inner connecting rod piece 20. One end of the fixed mounting plate 15 is connected to the frame 1, and the other end is fixedly connected to the fixed disk 16. A number of outer connecting rod pieces 19 are evenly distributed on the fixed disk 16 along its own circumferential direction. The lifting disk 18 is coaxially arranged on the inner ring of the fixed disk 16. The lifting plate 17 is connected to the lifting disk 18. The lifting plate 17 has the freedom to move axially along the lifting disk 18. A number of inner connecting rod pieces 20 are hinged on the lifting disk 18 along its own circumferential direction. The inner connecting rod pieces 20 and the outer connecting rod pieces 19 correspond one to one with the skin connecting piece 13. The skin connecting piece 13 is 7-shaped. The closed end of the skin connecting piece 13 is hinged to the inner connecting rod piece 20, and the bottom end of the opening of the skin connecting piece 13 is hinged to the outer connecting rod piece 19. The folding component 6 also includes a folding cylinder 21. The cylinder body of the folding cylinder 21 is mounted on the fixed mounting plate 15, the telescopic shaft of the folding cylinder 21 is connected to the lifting plate 17, and a notch for the outer connecting rod piece 19 is provided on the lifting plate 17. The lifting plate 18 and the fixed plate 16 are both hollow and arranged to form a feeding space for the buns to pass through. Initially, the skin-joining piece 13 is in an open state, that is, the top surface of the skin-joining piece 13 is in an inclined or horizontal state, and the skin-absorbing plate 9 places the dough on the supporting plate 14 and the skin-joining piece 13. After the pre-pressing piece 10 pre-forms a dent, the folding cylinder 21 drives the lifting plate 17 to move downward, and the lifting plate 17 drives the lifting plate 18 to move downward. The lifting plate 18 drives the skin-joining piece 13 to deflect around the hinge position with the outer connecting rod piece 19 through the inner connecting rod piece 20, so that the skin-joining piece 13 deflects inwardly toward the center of the fixed plate 16, so that the skin-joining piece 13 drives the dough to be folded into an upright state around the periphery, so that the dough wraps the filling, and then wrinkles are formed around the dough by the indentation component 5.

[0026] Example 6 Based on Example 5, Figures 1 to 8As shown, the indentation component 5 also includes an indentation mounting plate 22, an indentation swing arm 23, an indentation connecting rod 24, a sliding rod 25, an indentation fixing plate 26 and a groove slider seat 27. The indentation mounting plate 22 is fixedly mounted on the frame 1, the indentation fixing plate 26 is connected to the indentation mounting plate 22, the rotating disk 11 is rotatably mounted on the indentation fixing plate 26, the groove slider seat 27 is coaxially fixed on the indentation fixing plate 26, the groove slider seat 27 is an annular structure, an indentation servo motor 28 is installed on the indentation mounting plate 22, the output shaft of the indentation servo motor 28 is hinged to one end of the indentation swing arm 23, the other end of the indentation swing arm 23 is hinged to the indentation connecting rod 24, the indentation connecting rod 24 is hinged to the rotating disk 11, an annular cavity is provided in the rotating disk 11, the annular cavity is connected to the inner ring of the rotating disk 11, the top surface of the rotating disk 11 is provided with a plurality of arc grooves 29 along its own circumferential direction, the arc grooves 29 are connected to the annular cavity, and the plurality of arc grooves 29 are connected to the plurality of indentation sheets 12 correspond one to one, the indentation sheet 12 is connected with a slide rod 25, the slide rod 25 extends to the annular cavity and a roller 30 is installed, the roller 30 is matched in the arc groove 29, and a slide groove is opened on the groove slider seat 27. The slide rod 25 slides and adapts to the slide groove. The gathered dough is within the action range of the indentation component 5. The indentation servo motor 28 drives the indentation swing arm 23 to swing back and forth at a certain angle. The indentation swing arm 23 drives the rotating disk 11 to deflect through the indentation connecting rod 24. The arc groove 29 cooperates with the roller 30 to drive the roller 30 to move along the arc surface. The slide rod 25 is guided by the slide groove, so that the slide rod 25 drives the indentation piece 12 to move along the radial direction of the rotating disk 11. The indentation piece 12 and the skin-joining piece 13 are staggered along the circumferential direction of the rotating disk 11, so that the indentation piece 12 penetrates from two adjacent skin-joining pieces 13 and squeezes on the side surface of the dough skin, thereby squeezing out wrinkles at the position where the indentation is pre-formed to produce wrinkled buns.

[0027] Example 7 Based on Example 6, Figures 1 to 11As shown, the sealing component 7 also includes a sealing mounting plate 31, a sealing swing arm 32, a sealing connecting rod 33, a connecting piece 34, a rotating active swing arm 35, a copper shaft 36, a rotating driven swing arm 37, a lower fixed plate 39 and an upper fixed plate 40. The upper fixed plate 40 and the lower fixed plate 39 are arranged at intervals in the vertical direction and are connected together by a plurality of connecting columns 41. The rotating active swing arm 35 and the plurality of rotating driven swing arms 37 are evenly distributed in the circumferential direction of the lower fixed plate 39. The rotating driven swing arm 37 and the rotating active swing arm 35 are fixed with a copper shaft 36, the copper shaft 36 moves through the lower fixed plate 39 and is rotatably connected to the upper fixed plate 40, a sealing blade 38 is fixedly sleeved on the copper shaft 36, and the sealing blade 38 is located between the upper fixed plate 40 and the lower fixed plate 39, the sealing mounting plate 31 is mounted on the frame 1, and a sealing servo motor 42 is mounted on the sealing mounting plate 31, the output shaft of the sealing servo motor 42 is connected to the sealing swing arm 32, and the two ends of the sealing connecting rod 33 are respectively hinged On the sealing swing arm 32 and the rotating active swing arm 35, the rotating active swing arm 35 is hinged to the adjacent rotating driven swing arm 37 through the connecting piece 34, and the adjacent rotating driven swing arms 37 are hinged through the connecting piece 34. The sealing servo motor 42 drives the sealing swing arm 32 to swing back and forth at a certain angle, so that the sealing swing arm 32 drives the rotating active swing arm 35 to deflect through the sealing connecting rod 33. The rotating active swing arm 35 is connected to the multiple rotating driven swing arms 37 through the connecting piece 34, so that the rotating active swing arm 35 is connected to the multiple rotating driven swing arms 37 through the connecting piece 34. The movable swing arm 35 drives the rotating driven swing arm 37 to deflect through the connecting piece 34, causing the sealing blade 38 to deflect close to the center of the circle of the upper fixed plate 40. Through the joint action of multiple sealing blades 38, the top of the dough skin is squeezed together to complete the sealing operation. After the sealing is completed, the sealing blade 38 rotates and resets, and the support plate 14 drives the bun to move downward so that the bun is within the working range of the push plate 72. The bun is pushed onto the discharge conveying component 3 through the push plate 72 to complete the shaping and discharge of the bun.

[0028] Example 8 On the basis of Example 7, Figure 1 、 Figure 2 、 Figure 5 and Figure 6As shown, the stuffing pressing component 4 also includes a stuffing pressing fixing plate 43, a stuffing pressing mounting plate 44, an inner stuffing tube 45, an outer stuffing tube 46 and a pre-compression cylinder 47. The stuffing pressing fixing plate 43 is mounted on the frame 1, and the stuffing pressing mounting plate 44 is slidably mounted on the stuffing pressing fixing plate 43. The stuffing pressing mounting plate 44 is equipped with an outer stuffing tube lifting cylinder, and the telescopic shaft of the outer stuffing tube lifting cylinder is connected to the outer stuffing tube 46. The inner stuffing tube 45 penetrates from the top of the outer stuffing tube 46, and the inner stuffing tube 45 has the freedom to move axially along the outer stuffing tube 46. The bottom of the stuffing pressing mounting plate 44 is connected to a compression spring column 48, and the bottom of the compression spring column 48 is connected to the skin suction plate 9. A compression spring 49 is sleeved on the compression spring column 48, and the compression spring 49 is connected to the skin suction plate 9. The pre-compression cylinder 47 is mounted on the stuffing pressing mounting plate 44. The retracted shaft is connected to the pre-compression ring, which is driven up and down by the extension and contraction of the pre-compression cylinder 47, and then the pre-compression plate 10 is driven up and down, and the relative position between the pre-compression plate 10 and the skin suction plate 9 can be adjusted. When the skin suction plate 9 adsorbs the dough, the pre-compression plate 10 moves above the skin suction plate 9. When the dough is placed on the support plate 14 and the skin connecting piece 13, the pre-compression plate 10 moves downward and cooperates with the skin connecting piece 13 to form a dent on the dough. A stuffing injection component is provided on the frame 1, and the stuffing injection component includes a hopper 59, a rotary valve 60, a piston 61 and a valve body 62. The bottom of the hopper 59 is connected to the valve body 62, and the valve body 62 is mounted on the stuffing injection mounting plate. The stuffing injection mounting plate is fixed on the frame 1. The valve body 62 is connected to the outer stuffing pipe 46 through the stuffing pipe 64, and the rotary valve 60 is rotatably assembled on the valve The rotary valve 60 is provided with a channel in the body 62, and a switching channel 63 is provided on the side wall of the rotary valve 60. The switching channel 63 is connected to the channel, and a piston channel is formed in the valve body 62. One end of the channel is connected to the piston channel, and the piston 61 is slidably adapted in the piston channel. The feed port of the filling pipe 64 and the bottom opening of the hopper 59 are both located on the rotation path of the rotary valve 60. The end of the rotary valve 60 away from the filling pipe 64 is connected to the filling swing arm 65. The filling swing arm 65 is hinged to the telescopic shaft of the filling cylinder 66. A filling servo motor 67 is provided on the filling mounting plate. The output shaft of the filling servo motor 67 is connected to the filling screw 68. The filling screw 68 is rotatably mounted on the filling mounting plate. The piston 61 is threadedly sleeved on the filling screw 68. The hopper 59 is rotatably arranged There is a conical auger 69, which is driven by an auger servo motor 70 to put the filling into the hopper 59. The auger servo motor 70 drives the conical auger 69 to rotate, and the filling is stirred and mixed by the conical auger 69. The filling injection swing arm 65 is deflected by the extension and contraction of the filling injection cylinder 66, so that the filling injection swing arm 65 drives the rotary valve 60 to deflect, and the position of the switching channel 63 is adjusted to complete the switching of the filling feeding and filling. Specifically, at the beginning, the switching channel 63 is connected to the bottom opening of the hopper 59, and the filling injection servo motor 67 drives the filling injection screw 68 to rotate, so that the piston 61 moves along the axial direction of the filling injection screw 68, so that the piston 61 moves away from the rotary valve 60, thereby extracting the filling in the hopper 59 into the piston channel, and then the rotary valve 60 is deflected.Switching channel 63 is connected to the feed port of filling pipe 64, and the bottom opening of hopper 59 is sealed by the side wall of rotary valve 60. Then piston 61 moves closer to valve body 60, allowing the filling in the piston channel to be injected into outer filling pipe 46 through filling pipe 64. The filling in outer filling pipe 46 is then injected into the dough skin by moving downward through inner filling pipe 45. Outer filling pipe 46 is coaxially arranged on the inner ring of skin suction plate 9, so that the filling is injected into the middle of the dough skin, realizing automatic filling operation. In specific implementation, the filling injection amount can be adjusted by the movement path of piston 61, achieving the effect of quantitative filling.

[0029] Furthermore, a lifting screw 50 and an inner filling tube lifting screw 51 are rotatably installed on the filling pressing fixing plate 43 and the filling pressing mounting plate 44 respectively, and a guide rail 52 and an inner filling tube guide rail 53 are fixed on the filling pressing fixing plate 43 and the filling pressing mounting plate 44 respectively. A lifting servo motor 54 is installed on the filling pressing fixing plate 43, and the output shaft of the lifting servo motor 54 is connected to the lifting screw 50. A screw nut mounting block 55 is threadedly sleeved on the lifting screw 50, and the screw nut mounting block 55 is slidably adapted to the guide rail 52. The filling pressing mounting plate 44 is connected to the screw nut mounting block 55. A filling tube servo motor 56 is installed on the filling pressing mounting plate 44, and the output shaft of the filling tube servo motor 56 is connected to the inner filling tube lifting screw 51. A filling tube nut mounting block 57 is threadedly sleeved on the inner filling tube lifting screw 51, and the inner filling tube thread mounting block 57 is slidably adapted to The inner filling tube guide rail 53 and the inner filling tube 45 are installed on the inner filling tube threaded mounting block 57. The inner filling tube 45 is provided with an air jet hole 58 along its own axial direction. The lifting screw rod 50 is driven to rotate by the lifting servo motor 54, so that the screw nut mounting block 55 drives the filling pressing mounting plate 44 to move up and down, thereby driving the skin suction plate 9 to move up and down to perform the dough loading operation. The inner filling tube servo motor 56 drives the inner filling tube lifting screw rod 51 to rotate, so that the inner filling tube nut mounting block 57 drives the inner filling tube 45 to move up and down. The inner filling tube 45 and the outer filling tube 46 form a piston mechanism, and the filling in the outer filling tube 46 is injected into the dough through the inner filling tube 45. The air jet hole 58 is connected to an external blowing device, and air is sprayed into the outer filling tube 46 through the air jet hole 58 to prevent the filling from adhering to the inner wall of the outer filling tube 46 and the bottom of the inner filling tube 45, thereby ensuring that the filling injection amount is more accurate.

Claims

1. A wrinkle forming device for a steamed bun machine, comprising a frame (1), characterized in that: The frame (1) is provided with a stuffing pressing component (4), an indentation component (5) and a gathering component (6) in sequence from top to bottom, the stuffing pressing component (4) includes a pre-pressing ring, the pre-pressing ring has the freedom to move in the vertical direction, the bottom of the pre-pressing ring is fixed with a plurality of pre-pressing sheets (10) along its own circumferential direction, the indentation component (5) includes a rotating disk (11) and an indentation sheet (12), the rotating disk (11) is hollow, the inner ring of the rotating disk (11) is provided with a plurality of indentation sheets (12) along its own circumferential direction, the indentation sheet (12) has the freedom to move radially along the rotating disk (11), the gathering component (6) includes a plurality of skin-joining sheets (13) in a circumferential array, an annular space is formed between the plurality of skin-joining sheets (13), and the skin-joining sheets (13) have a hinge point with a horizontal axis; The dough is placed on a skin-joining sheet (13), and a plurality of the skin-joining sheets (13) and a plurality of pre-pressing sheets (10) are interlaced in sequence to form a gap fit, which is used to pre-form indentations on the dough. The skin-joining sheet (13) is deflected toward the annular space at a hinge point to gather the dough into an upright state, and cooperates with the indentation sheet (12) to form wrinkles around the dough.

2. The wrinkle forming device of a steamed bun machine according to claim 1, characterized in that: The folding component (6) further comprises a fixed mounting plate (15), a fixed disk (16), a lifting plate (17), a lifting plate (18), an outer connecting rod piece (19) and an inner connecting rod piece (20), one end of the fixed mounting plate (15) is connected to the frame (1), and the other end is fixedly connected to the fixed disk (16), a plurality of outer connecting rod pieces (19) are evenly distributed on the fixed disk (16) along its own circumferential direction, the lifting plate (18) is coaxially arranged on the inner circle of the fixed disk (16), the lifting plate (17) is connected to the inner circle of the fixed disk (16), and the lifting plate (18) is connected to the inner circle of the fixed disk (16). ) is connected to the lifting plate (18), the lifting plate (17) has the freedom to move along the axial direction of the lifting plate (18), and a plurality of inner connecting rod pieces (20) are hinged on the lifting plate (18) along its own circumferential direction. The inner connecting rod pieces (20), the outer connecting rod pieces (19) and the skin connecting pieces (13) correspond one to one, and the skin connecting pieces (13) are 7-shaped. The closed end of the skin connecting piece (13) is hinged to the inner connecting rod piece (20), and the open bottom end of the skin connecting piece (13) is hinged to the outer connecting rod piece (19).

3. The wrinkle forming device of a steamed bun making machine according to claim 2, characterized in that: The folding component (6) further comprises a folding cylinder (21), the cylinder body of the folding cylinder (21) being mounted on the fixed mounting plate (15), the telescopic shaft of the folding cylinder (21) being connected to the lifting plate (17), the lifting plate (17) being provided with a slot for the outer connecting rod sheet (19) to pass through, the lifting plate (18) and the fixed plate (16) being both hollow, so as to form a material discharge space for the steamed buns to pass through.

4. The wrinkle forming device of a steamed bun making machine according to claim 1, characterized in that: The indentation component (5) further comprises an indentation mounting plate (22), an indentation swing arm (23), an indentation connecting rod (24), a slide bar (25), an indentation fixing plate (26) and a groove slider seat (27), wherein the indentation mounting plate (22) is fixedly mounted on the frame (1), the indentation fixing plate (26) is connected to the indentation mounting plate (22), the rotating disk (11) is rotatably mounted on the indentation fixing plate (26), the groove slider seat (27) is coaxially fixed on the indentation fixing plate (26), the groove slider seat (27) is an annular structure, an indentation servo motor (28) is mounted on the indentation mounting plate (22), an output shaft of the indentation servo motor (28) is hinged to one end of the indentation swing arm (23), and the indentation swing arm (23) is connected to the indentation fixing plate (26). ) is hinged to the other end of the indentation link (24), which is hinged on the rotating disk (11). An annular cavity is provided in the rotating disk (11), and the annular cavity is connected to the inner ring of the rotating disk (11). The top surface of the rotating disk (11) is provided with a plurality of arc grooves (29) along its own circumferential direction, and the arc grooves (29) are connected to the annular cavity. The plurality of arc grooves (29) correspond to a plurality of indentation sheets (12) one by one, and the indentation sheets (12) are connected to a slide rod (25), and the slide rod (25) extends to the annular cavity and is installed with a roller (30), and the roller (30) is fitted in the arc groove (29). A slide groove is provided on the groove slider seat (27), and the slide rod (25) is slidably adapted to the slide groove.

5. The wrinkle forming device of a steamed bun making machine according to claim 1, characterized in that: The stuffing pressing component (4) further comprises a stuffing pressing fixing plate (43), a stuffing pressing mounting plate (44), an inner stuffing tube (45), an outer stuffing tube (46) and a pre-compression cylinder (47), wherein the stuffing pressing fixing plate (43) is mounted on the machine frame (1), the stuffing pressing mounting plate (44) is slidably mounted on the stuffing pressing fixing plate (43), an outer stuffing tube lifting cylinder is mounted on the stuffing pressing mounting plate (44), a telescopic shaft of the outer stuffing tube lifting cylinder is connected to the outer stuffing tube (46), and the inner stuffing tube (45) is moved from the outer stuffing tube ( 46), the inner filling tube (45) has the freedom to move axially along the outer filling tube (46), the bottom of the filling pressing mounting plate (44) is connected to a compression spring column (48), the bottom of the compression spring column (48) is connected to the skin suction plate (9), a compression spring (49) is sleeved on the compression spring column (48), the compression spring (49) is connected to the skin suction plate (9), the pre-compression cylinder (47) is installed on the filling pressing mounting plate (44), and the telescopic shaft of the pre-compression cylinder (47) is connected to the pre-compression ring.

6. The wrinkle forming device of a steamed bun making machine according to claim 5, characterized in that: The stuffing pressing fixing plate (43) and the stuffing pressing mounting plate (44) are respectively rotatably mounted with a lifting screw (50) and an inner stuffing tube lifting screw (51), and the stuffing pressing fixing plate (43) and the stuffing pressing mounting plate (44) are respectively fixed with a guide rail (52) and an inner stuffing tube guide rail (53), and the stuffing pressing fixing plate (43) is mounted with a lifting servo motor (54), and the output shaft of the lifting servo motor (54) is connected to the lifting screw (50), and the lifting screw (50) is threadedly sleeved with a screw nut mounting block (55), and the screw nut mounting block (55) is slidably adapted to the guide rail (52). ), the stuffing pressing mounting plate (44) is connected to the screw nut mounting block (55), the stuffing pressing mounting plate (44) is equipped with a stuffing tube servo motor (56), the output shaft of the stuffing tube servo motor (56) is connected to the stuffing tube lifting screw (51), the stuffing tube lifting screw (51) is threadedly sleeved with a stuffing tube nut mounting block (57), the stuffing tube thread mounting block (57) is slidably adapted to the stuffing tube guide rail (53), the stuffing tube (45) is mounted on the stuffing tube thread mounting block (57), and the stuffing tube (45) is provided with an air injection hole (58) along its own axial direction.

7. The wrinkle forming device of a steamed bun making machine according to claim 1, characterized in that: A sealing component (7) is provided below the gathering component (6), and the sealing component (7) comprises a plurality of sealing blades (38). The plurality of sealing blades (38) form a circular array on a horizontal plane, and the sealing blades (38) have the freedom to move radially toward the array circle. The sealing component (7) seals the wrinkled dough using the sealing blades (38).

8. The wrinkle forming device of a steamed bun making machine according to claim 7, characterized in that: The sealing component (7) further comprises a sealing mounting plate (31), a sealing swing arm (32), a sealing connecting rod (33), a connecting piece (34), a rotating active swing arm (35), a copper shaft (36), a rotating driven swing arm (37), a lower fixed plate (39) and an upper fixed plate (40), wherein the upper fixed plate (40) and the lower fixed plate (39) are arranged at intervals in the vertical direction and connected together by a plurality of connecting columns (41), the rotating active swing arm (35) and the plurality of rotating driven swing arms (37) are evenly distributed in the circumferential direction around the lower fixed plate (39), and the rotating driven swing arm (37) and the rotating active swing arm (35) are both fixed with a copper shaft (36), and the copper shaft (36) is movable through the lower fixed plate (39) and is rotatably connected On the upper fixed plate (40), a sealing blade (38) is fixedly sleeved on the copper shaft (36), and the sealing blade (38) is located between the upper fixed plate (40) and the lower fixed plate (39). The sealing mounting plate (31) is mounted on the frame (1). A sealing servo motor (42) is mounted on the sealing mounting plate (31). The output shaft of the sealing servo motor (42) is connected to the sealing swing arm (32). The two ends of the sealing connecting rod (33) are respectively hinged on the sealing swing arm (32) and the rotating active swing arm (35). The rotating active swing arm (35) is hinged to the adjacent rotating driven swing arm (37) through the connecting piece (34), and the adjacent rotating driven swing arms (37) are hinged to each other through the connecting piece (34).

9. The wrinkle forming device of a steamed bun making machine according to claim 1, characterized in that: It also includes a support plate lifting component (8), wherein the support plate lifting component (8) includes a support plate (14), the support plate (14) has the freedom to move in the vertical direction, and the support plate (14) is used to support the dough for the production of wrinkled buns.

10. The wrinkle forming device of a steamed bun making machine according to claim 9, characterized in that: The pallet lifting component (8) further includes a mounting plate (71), a push plate (72), a pallet screw slider seat (73), a push cylinder (74) and a pallet servo motor (75), wherein the mounting plate (71) is fixedly connected to the frame (1), a ball screw (76) is rotatably provided on the mounting plate (71), a pallet guide rail (77) is fixed on the mounting plate (71), the pallet screw slider seat (73) is threadedly sleeved on the ball screw (76), and the pallet screw slider seat (73) is slidably assembled on the pallet guide rail (77), and the bottom of the pallet (14) is connected to a pallet support rod (78) ), the pallet support plate (78) is connected to the pallet screw slider seat (73), the pushing cylinder (74) is horizontally arranged on the mounting plate (71), the telescopic shaft of the pushing cylinder (74) is connected to the push plate (72), the push plate (72) is used to push the buns on the pallet (14) onto the discharge conveying component (3), a pallet servo motor (78) is installed on the mounting plate (71), the output shaft of the pallet servo motor (78) is connected to a synchronous pulley (79), the ball screw (76) is connected to a driven pulley, and the driven pulley is connected to the synchronous pulley (79) through a synchronous belt (80).

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