Automatic steamed-bun production patterned forming machine

Abstract

The utility model belongs to food production mechanical equipment technical field relates to a kind of automatic steamed stuffed bun production grab flower forming machine, including lifting upper shelf plate, lifting middle shelf plate and lifting lower shelf plate are linearly installed on first screw lifting assembly in proper order, lifting upper shelf plate and lifting lower shelf plate are fixedly connected by shelf plate connecting plate, integral grab flower retraction system is slidably installed on first screw lifting assembly by lifting upper shelf plate and lifting lower shelf plate.The utility model makes the structure of entire grab flower component more compact by integral grab flower retraction system, lifting upper, middle and lower shelf plate cooperate first screw lifting assembly to form stable and simple lifting frame structure, unnecessary mechanical connection and transmission link are reduced, lifting and grab flower action are realized in limited space;Single power source is used to realize the positioning of bag embryo, avoid the problem of different step instability caused by multiple power sources driving, ensure the smooth progress of subsequent grab flower and twisting hole and other processes.

Description

Technical Field

[0001] This utility model relates to the field of food production machinery and equipment technology, and in particular to an automatic steamed bun production and shaping machine. Background Technology

[0002] Steamed buns, a staple food in the daily diet of people in northern China, have a large consumer base. To meet the growing market demand and improve production efficiency and product quality, steamed bun production machinery has emerged. Currently, the basic working principle of steamed bun production machinery is to feed the dough and filling into the machine simultaneously. An extrusion structure allows the dough to wrap the filling, forming a concentric cylindrical shape. Then, a pinching or shaping mechanism completes the cutting, pinching, and sealing process, creating pleats and ultimately forming the finished steamed bun.

[0003] The "plucking" action involves pinching and forming folds at the overlapping points of the semi-finished leather, which helps to bond it firmly and make it look more beautiful. The "trimming" action involves further refining the outline of the semi-finished product after the plucking process, making the product more regular.

[0004] However, the existing flower-grabbing mechanism has a relatively complex overall structure. Most flower-grabbing and unfolding systems use a drive motor with an external protruding lifting platform, which is then connected to the flower-grabbing bracket to control the unfolding and unfolding of the flower-grabbing pieces and achieve the flower-grabbing function. This design is cumbersome to install, and the linkage structure is complex and occupies a lot of space.

[0005] Furthermore, existing embryo positioning devices that work in conjunction with the twisting and topping device often use two opposing cylinders to control synchronous movement and clamp the embryo. However, in actual use, due to their inherent characteristics, cylinders cannot guarantee synchronous operation for extended periods. As usage time increases, cylinders are prone to becoming out of sync, leading to unstable embryo positioning, affecting the forming quality of the buns, and requiring frequent adjustments and maintenance. This not only increases production costs but also reduces production efficiency. Utility Model Content

[0006] To solve the above-mentioned existing technical problems, this utility model provides an automatic steamed bun production crimping and forming machine.

[0007] The technical solution of this utility model is achieved through the following scheme: an automatic steamed bun production crimping and forming machine, including a frame, crimping components, twisting hole components and a single-motion source positioning component for the bun, wherein the crimping components and twisting hole components are arrayed and installed in the working area of ​​the frame, the crimping components and twisting hole components are located above the conveying area of ​​the frame, the single-motion source positioning component for the bun is installed on the conveying area of ​​the frame, and the twisting hole components are directly opposite the single-motion source positioning component for the bun; The flower-grabbing assembly includes a first screw lifting assembly, a lifting upper frame plate, a lifting middle frame plate, a lifting lower frame plate, and an integrated flower-grabbing and unfolding system. The lifting upper frame plate, the lifting middle frame plate, and the lifting lower frame plate are linearly installed sequentially on the first screw lifting assembly. The lifting upper frame plate and the lifting lower frame plate are fixedly connected by a frame plate connecting plate. The integrated flower-grabbing and unfolding system is slidably installed on the first screw lifting assembly through the lifting upper frame plate and the lifting lower frame plate. The lifting middle frame plate and the lifting lower frame plate are both connected to the guide posts of the first screw lifting assembly. The lifting upper frame plate is connected to the screw of the first screw lifting assembly through a screw nut. The integrated flower-grabbing and unfolding system is connected to the lifting middle frame plate.

[0008] Through the above technical solution, the first lead screw lifting assembly integrates the upper, middle and lower lifting plates to drive the integrated flower-grabbing and releasing system. This makes the structure of the entire flower-grabbing assembly more compact, avoiding the complex structural problems caused by the connection and cooperation of multiple components. The upper, middle and lower lifting plates, together with the first lead screw lifting assembly, form a stable and simple lifting frame structure, reducing unnecessary mechanical connections and transmission links, and avoiding excessive mechanical transmission that may cause offset or shaking. Lifting and flower-grabbing actions are achieved within a limited space. The use of a single power source to position the blank fundamentally avoids the asynchronous and unstable problems caused by multiple power sources, ensuring the smooth progress of subsequent flower-grabbing and twisting processes.

[0009] Preferably, the integrated flower-grabbing and releasing system includes a lead screw motor, a fixed base, a power tie rod, and a flower-grabbing bracket. The lead screw motor has a lead screw at its drive end, which is fixedly installed on the fixed base by a lead screw nut. The fixed base is bolted to the top surface of the lifting frame plate, and the bottom surface of the lifting frame plate is connected to the flower-grabbing bracket by the power tie rod. The flower-grabbing bracket has several flower-grabbing blades hinged in a circumferential array.

[0010] Preferably, the outer surface of the flower-grabbing bracket is fitted with a pin positioning plate, the top surface of the pin positioning plate is provided with a fixing plate, the fixing plate is screwed to the flower-grabbing bracket and the lifting lower plate respectively, the pin positioning plate is provided with a plurality of round holes, a fixing pin is inserted into the round holes, and the end of the fixing pin is connected to the flower-grabbing blade by a screw.

[0011] Preferably, both ends of the power rod are provided with circumferential grooves. One end of the power rod passes through the axis of the flower-grabbing bracket, and the ends of several flower-grabbing blades are movably installed in the circumferential groove at one end of the power rod. The circumferential groove at the other end of the power rod is engaged with the bottom surface of the lifting frame plate.

[0012] Preferably, the preform single-motion source positioning component includes a second motor, a first preform positioning slide plate and a second preform positioning slide plate. The first preform positioning slide plate and the second preform positioning slide plate are slidably mounted on a guide rail seat. The second motor is mounted on the bottom surface of the guide rail seat. The driving end of the second motor passes through the guide rail seat and is equipped with a driving gear. The first preform positioning slide plate and the second preform positioning slide plate are both meshed with the driving gear.

[0013] Preferably, the first preform positioning slide and the second preform positioning slide have the same structure.

[0014] Preferably, the first preform positioning slide plate includes a slider, a preform positioning plate and a rack. The rack is fixedly installed on the side wall of the slider and meshes with a gear. The slider also has a through hole adapted to the rack. The second preform positioning slide plate is slidably connected to the through hole.

[0015] In summary, this utility model has the following beneficial effects: 1. This utility model integrates the upper, middle, and lower lifting plates through the first screw lifting assembly to drive the integrated flower-grabbing and releasing system. This makes the structure of the entire flower-grabbing assembly more compact, avoiding the complex structural problems caused by the connection and cooperation of multiple components. The upper, middle, and lower lifting plates, together with the first screw lifting assembly, form a stable and simple lifting frame structure, reducing unnecessary mechanical connections and transmission links, avoiding excessive mechanical transmission that may cause offset or shaking, and realizing lifting and flower-grabbing actions within a limited space. The use of a single power source to achieve the positioning of the blank fundamentally avoids the problem of asynchronous instability caused by multiple power sources, ensuring the smooth progress of subsequent flower-grabbing and hole-twisting processes.

[0016] 2. The lead screw motor and the fixed base provide a reference for subsequent installation, and then the other components are connected in sequence to ensure that all components are on the same axis. This avoids the complicated debugging and alignment process when components are installed separately, and simplifies the installation process.

[0017] 3. The pin positioning disc sleeve, in conjunction with the fixing pin, provides a stable positioning reference for the flower-grabbing blades, enabling the flower-grabbing blades to move accurately along the predetermined trajectory during rotation. It also makes the installation and removal of the flower-grabbing blades more convenient. The flower-grabbing blades can be easily replaced simply by removing the screws at the end of the fixing pin, without the need for large-scale disassembly of the entire flower-grabbing assembly.

[0018] 4. The circumferential grooves at both ends of the power lever enable it to accurately transmit power under the action of the lifting frame, achieving synchronous opening and closing of the flower-grabbing blades. It also provides a stable connection and movement space for the flower-grabbing blades, reducing friction and wear between components and lowering the probability of failure.

[0019] 5. A second motor is used as the sole power source, which drives two parallel gears to move through a single gear. This ensures that the two positioning plates can always slide synchronously relative to each other, so that the preform is subjected to uniform force during positioning and there will be no preform offset or deformation due to asynchronous positioning. In addition, the first and second preform positioning slide plates have a compact structure and do not interfere with each other due to the through holes, so the movement is smooth and reliable, thus ensuring the accuracy of preform positioning. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure from the main perspective of this utility model; Figure 2 This is a schematic diagram of the main structure of the flower-grabbing component of this utility model; Figure 3 yes Figure 2 A schematic diagram of the AA-view structure; Figure 4 yes Figure 2 A schematic diagram of the BB's perspective structure; Figure 5 This is a schematic diagram of the twist hole assembly structure of this utility model; Figure 6 This is a schematic diagram of the preform positioning device of this utility model; Figure 7 This is a schematic diagram of the production line location for this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Flower-grabbing assembly; 21. First lead screw lifting assembly; 22. Lifting upper frame plate; 23. Lifting middle frame plate; 24. Lifting lower frame plate; 25. Integrated flower-grabbing and unfolding system; 201. Lead screw motor; 202. Fixed base; 203. Power tie rod; 204. Pin positioning plate; 205. Fixed plate; 206. Fixed pin; 207. Flower-grabbing bracket; 208. Flower-grabbing blade; 3. Twisting hole assembly; 31. Second lead screw lifting assembly; 32. Twisting hole support plate; 33. First motor; 34. Twisting hole plate; 4. Single-acting preform positioning assembly; 41. Second motor; 42. First preform positioning slide plate; 421. Slider; 422. Preform positioning plate; 423. Rack; 43. Second preform positioning slide plate; 5. Right conveyor belt; 6. Conveyor box; 7. Left conveyor belt; 8. Control panel; 9. Guide rail seat; 10. Linear sliding bearing; 11. Frame connecting plate; 12. Screw nut; 100. Plate-setting machine; 101. Pinch-breaking machine; 102. Filling machine; 103. Filling roll machine; 104. First photoelectric switch; 105. Second photoelectric switch. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] An automatic steamed bun production and shaping machine, such as Figures 1-7 As shown, the machine includes a frame 1, a flower-grabbing assembly 2, a twisting hole assembly 3, and a single-motion source positioning assembly 4 for preform packaging. The flower-grabbing assembly 2 and the twisting hole assembly 3 are arrayed and installed in the working area of ​​the frame 1. The flower-grabbing assembly 2 and the twisting hole assembly 3 are located above the conveying area of ​​the frame 1. The single-motion source positioning assembly 4 for preform packaging is installed on the conveying area of ​​the frame 1. The twisting hole assembly 3 is directly opposite the single-motion source positioning assembly 4 for preform packaging. There are two photoelectric switches on the side of the frame 1 near the conveying area. The first photoelectric switch 104 is communicatively connected to the flower-grabbing assembly 2, and the second photoelectric switch 105 is communicatively connected to the twisting hole assembly 3. The frame 1 is also equipped with a control panel 8 for human-machine interaction. The flower-grabbing assembly 2 includes a first screw lifting assembly 21, an upper lifting plate 22, a middle lifting plate 23, a lower lifting plate 24, and an integrated flower-grabbing and unfolding system 25. The upper lifting plate 22, the middle lifting plate 23, and the lower lifting plate 24 are linearly installed sequentially on the first screw lifting assembly 21. The upper lifting plate 22 and the lower lifting plate 24 are fixedly connected by a plate connecting plate 11. The integrated flower-grabbing and unfolding system 25 is slidably installed on the first screw lifting assembly 21 through the upper lifting plate 22 and the lower lifting plate 24. The middle lifting plate 23 and the lower lifting plate 24 are both connected to the guide posts of the first screw lifting assembly 21. The upper lifting plate 22 is connected to the screw of the first screw lifting assembly 21 through a screw nut 12. The integrated flower-grabbing and unfolding system 25 is connected to the upper lifting plate 21 through the screw nut 12. The middle frame plate 23 is connected to the first screw lifting assembly 21, which drives the upper lifting frame plate 22 and the lower lifting frame plate 24, which are fixed in place by the frame plate connecting plate 11, to rise or fall. This, in turn, drives the integrated flower grabbing and releasing system 25 to rise or fall. The integrated flower grabbing and releasing system 25 is connected to the middle lifting frame plate 23 and is controlled by the middle lifting frame plate 23 for transmission. There is a reserved space for the middle lifting frame plate 23 to move between the upper lifting frame plate 22 and the lower lifting frame plate 24. The three plates are integrated on the first screw lifting assembly 21 to reduce the complexity of the device and save space. The stable transmission ensures the smooth operation of the flower grabbing system. The upper lifting frame plate 22, the middle lifting frame plate 23, and the lower lifting frame plate 24 are all connected to the guide column of the first screw lifting assembly 21 through the linear sliding bearing 10.

[0025] The upper lifting plate 22, the middle lifting plate 23, and the lower lifting plate 24 are arranged sequentially along the axial direction of the first lead screw lifting assembly 21 to form a three-layer structure. The upper lifting plate 22 is the top drive mounting plate, which undertakes the functions of upper support and overall drive connection; the middle lifting plate 23 is the middle movable plate, which is used for transmission control of the flower-grabbing action; the lower lifting plate 24 is the bottom mounting plate, which is fixedly connected to the upper plate through the plate connecting plate 11 to form a stable frame.

[0026] The integrated flower-grabbing and unfolding system 25 includes a screw motor 201, a fixed base 202, a power tie rod 203, and a flower-grabbing bracket 207. The screw motor 201 has a screw at its drive end, which is fixedly mounted on the fixed base 202 by a screw nut 12. The fixed base 202 is bolted to the top surface of the lifting frame plate 23 to provide stable support for the screw. The screw motor 201 drives the screw at its end to rotate, and the rotational force is converted into the linear motion force of the lifting frame plate 23 through the screw nut 12. The bottom surface of the lifting frame plate 23 is connected to the flower-grabbing bracket 207 through the power tie rod 203. Several flower-grabbing blades 208 are hinged in a circular array inside the flower-grabbing bracket 207. Multiple slots are evenly distributed on the circumference of the flower-grabbing bracket 207, and multiple flower-grabbing blades 208 are hinged in a circular array in the slots of the flower-grabbing bracket 207.

[0027] The lifting frame plate 23 serves as the intermediate transmission layer, and its bottom surface is connected to the flower-grabbing bracket 207 via the power tie rod 203 to transmit vertical movement.

[0028] The outer surface of the flower-grabbing bracket 207 is fitted with a pin positioning plate 204. The top surface of the pin positioning plate 204 is provided with a fixing plate 205. The fixing plate 205 is screwed to the flower-grabbing bracket 207 and the lifting lower frame plate 24 respectively. The upper part of the fixing plate 205 is provided with a locking nut, which is threaded to the flower-grabbing bracket 207 to press the fixing plate 205 tight. It is also fixed to the lifting lower frame plate 24 by bolts to ensure structural stability. The pin positioning plate 204 has several round holes. The round holes are distributed in a circular array around the axis of the pin positioning plate 204. A fixing pin 206 is inserted into the round holes. The end of the fixing pin 206 is connected to the flower-grabbing blade 208 by screws.

[0029] Both ends of the power pull rod 203 are provided with circumferential grooves. One end of the power pull rod 203 passes through the axis of the flower-grabbing bracket 207. The ends of several flower-grabbing blades 208 are movably installed in the circumferential groove at one end of the power pull rod 203. The circumferential groove at the other end of the power pull rod 203 is engaged with the bottom surface of the lifting frame plate 23. The bottom surface of the lifting frame plate 23 is provided with a circumferential tenon that is adapted to engage with the circumferential groove of the power pull rod 203. The power pull rod 203 can slide axially in the flower-grabbing bracket 207, driving all the flower-grabbing blades 208 to open and close around each hinge point.

[0030] When the first lead screw lifting assembly 21 moves, the integrated flower-grabbing and releasing system 25 is fixed on the upper lifting plate 22 and the lower lifting plate 24, and is connected to the middle lifting plate 23. The three plates, the upper lifting plate 22, the middle lifting plate 23, and the lower lifting plate 24, rise and fall synchronously. After the first lead screw lifting assembly 21 reaches the appropriate position, it stops driving. When the lead screw motor 201 moves, the lead screw at its end rotates, driving the middle lifting plate 23 to rise and fall, while the upper lifting plate 22 and the lower lifting plate 24 are in a stationary state. At this time, the middle lifting plate 23 drives the power rod 203 to rise and fall, thereby driving the flower-grabbing blades 208 to open and close, realizing the flower-grabbing action.

[0031] like Figure 6 As shown, the preform single-motion positioning component 4 includes a second motor 41, a first preform positioning slide plate 42, and a second preform positioning slide plate 43. The first preform positioning slide plate 42 and the second preform positioning slide plate 43 are slidably mounted on the guide rail seat 9. The second motor 41 is mounted on the bottom surface of the guide rail seat 9. The drive end of the second motor 41 passes through the guide rail seat 9 and is equipped with a drive gear. The first preform positioning slide plate 42 and the second preform positioning slide plate 43 are both meshed with the drive gear. The guide rail seat 9 is concave in shape and includes a guide rail frame that is in the shape of an "II" and a motor fixing plate 205. The motor fixing plate 205 supports the guide rail frame, and the two preform positioning slide plates move relative to each other, one to the left and one to the right.

[0032] The first preform positioning slide plate 42 and the second preform positioning slide plate 43 have the same structure and composition.

[0033] The first blank positioning slide plate 42 includes a slider 421, a blank positioning plate 422, and a rack 423. The rack 423 is fixedly installed on the side wall of the slider 421 and meshes with a gear. The slider 421 also has a through hole that matches the rack 423. The second blank positioning slide plate 43 is slidably connected to the through hole. The blank positioning plate 422 is C-shaped to avoid the conveyor belt. The blank positioning plate 422 is screwed to the slider 421. The blank positioning plate 422 is further divided into an upper blank plate and a support plate. The upper blank plate is screwed to the support plate to form a C-shape. The upper blank plate can be disassembled and replaced according to the size of the blank.

[0034] The rack 423 on the slider 421 and the through hole on the slider 421 are symmetrically positioned. The rack 423 of the second blank positioning slide plate 43 passes through the through hole of the first blank positioning slide plate 42, and the rack 423 of the first blank positioning slide plate 42 passes through the through hole of the second blank positioning slide plate 43. The racks 423 of the two pass through each other's through holes, and do not interfere with each other during movement. The two racks 423 are parallel and opposite to each other. They are driven by a single drive gear as the power source, and the rotational motion is transmitted as linear motion. The single motor drive and gear rack 423 meshing transmission design realizes the efficient and accurate blank positioning function.

[0035] The hole-twisting assembly 3 includes a second lead screw lifting assembly 31, a hole-twisting frame plate 32, a first motor 33, and a hole-twisting disc 34. The hole-twisting frame plate 32 is movably mounted on the second lead screw lifting assembly 31. The first motor 33 is mounted on the hole-twisting frame plate 32. The drive end of the first motor 33 is connected to the hole-twisting disc 34. When the first motor 33 starts, it drives the hole-twisting disc 34 to rotate. The second lead screw lifting assembly 31 causes the hole-twisting frame plate 32, the hole-twisting motor, and the hole-twisting disc 34 to rise or fall. The hole-twisting frame plate 32 is also connected to the lead screw of the second lead screw lifting assembly 31 through the lead screw nut 12. A linear sliding bearing 10 is also installed on the part where the hole-twisting frame plate 32 connects to the guide post of the second lead screw lifting assembly 31.

[0036] Both the first lead screw lifting assembly 21 and the second lead screw lifting assembly 31 consist of a motor, a fixed frame, a guide column, and a lead screw.

[0037] All parts and equipment use conventional models found in existing technology. The motors of each component are driven by servo motors. The circuit connections and communication connections also use conventional connection methods found in existing technology. The steamed bun production line is mainly composed of a filling roll machine 103, a filling conveyor 102, a pinching machine 101, a flower-forming machine, and a tray-arranging machine 100 connected in sequence by conveyor belts. The frame 1 is also equipped with a conveyor box 6, with a right conveyor belt 5 and a left conveyor belt 7 exposed outside the conveyor box 6. The right conveyor belt 5 is connected to the pinching machine 101, and the left conveyor belt 7 is connected to the tray-arranging machine 100. The filling roll machine 103, the filling conveyor 102, the pinching machine 101, and the tray-arranging machine 100 are all existing technologies. The control panel 8 is connected to the various components of the flower-forming machine for communication. These details will not be described in detail here. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0038] Working principle: The filling and kneaded dough are fed into the filling machine 102 and the rolling machine 103 respectively, forming a filled dough column, which is then conveyed to the pinching machine 101. The pinching machine 101 pinches the filled dough column to form individual filled dough balls, which fall onto the right conveyor belt 5. The right conveyor belt 5 conveys the dough to the folding and shaping machine. The first photoelectric switch 104 senses the passing of the dough, and the folding mechanism falls down to shape the dough into a pleated pattern before releasing it. The dough continues to be conveyed to the second photoelectric switch 105. The single-motion positioning component 4 of the dough first starts to position the dough, and then the twisting mechanism starts to twist the upper part of the pleated dough, thus completing the imitation hand-steamed bun. The dough is then conveyed to the tray-laying machine 100, where it is neatly arranged on the steaming tray. When the flower is grasped, the first lead screw lifting assembly 21 drives the entire flower grasping device to rise and fall, and the lead screw motor 201 drives the lifting frame plate 23 and the power tie rod 203 to rise and fall, thereby driving the flower grasping blades 208 to open and close, thus realizing the flower grasping action. When the preform single-motion positioning component 4 is started, the second motor 41 drives the drive gear to rotate, which in turn causes the two meshing racks 423 to move synchronously relative to each other, thereby pulling the relative sliders 421 to move inward or outward relative to each other, and stably clamping the preform in the center.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An automatic steamed bun production and shaping machine, characterized in that: The machine includes a frame (1), a flower-grabbing assembly (2), a twisting hole assembly (3), and a single-motion source positioning assembly (4) for wrapping the preform. The flower-grabbing assembly (2) and the twisting hole assembly (3) are arrayed and installed in the working area of ​​the frame (1). The flower-grabbing assembly (2) and the twisting hole assembly (3) are located above the conveying area of ​​the frame (1). The single-motion source positioning assembly (4) for wrapping the preform is installed on the conveying area of ​​the frame (1). The twisting hole assembly (3) is directly opposite the single-motion source positioning assembly (4) for wrapping the preform. The flower-grabbing assembly (2) includes a first screw lifting assembly (21), an upper lifting plate (22), a middle lifting plate (23), a lower lifting plate (24), and an integrated flower-grabbing and unfolding system (25). The upper lifting plate (22), the middle lifting plate (23), and the lower lifting plate (24) are sequentially and linearly installed on the first screw lifting assembly (21). The upper lifting plate (22) and the lower lifting plate (24) are fixedly connected by a plate connecting plate (11). The integrated flower grabbing and releasing system (25) is slidably mounted on the first screw lifting assembly (21) via the lifting upper frame plate (22) and the lifting lower frame plate (24). The lifting middle frame plate (23) and the lifting lower frame plate (24) are both connected to the guide column of the first screw lifting assembly (21). The lifting upper frame plate (22) is connected to the screw of the first screw lifting assembly (21) via the screw nut (12). The integrated flower grabbing and releasing system (25) is connected to the lifting middle frame plate (23).

2. The automatic steamed bun production pattern forming machine according to claim 1, characterized in that: The integrated flower-grabbing and releasing system (25) includes a screw motor (201), a fixed base (202), a power tie rod (203), and a flower-grabbing bracket (207). The screw motor (201) has a screw at its driving end. The screw at the driving end of the screw motor (201) is fixedly installed on the fixed base (202) by a screw nut (12). The fixed base (202) is bolted to the top surface of the lifting frame plate (23). The bottom surface of the lifting frame plate (23) is connected to the flower-grabbing bracket (207) by the power tie rod (203). The flower-grabbing bracket (207) has several flower-grabbing blades (208) hinged in a circumferential array.

3. The automatic steamed bun production pattern forming machine according to claim 2, characterized in that: The outer surface of the flower-grabbing bracket (207) is fitted with a pin positioning plate (204). The top surface of the pin positioning plate (204) is provided with a fixing plate (205). The fixing plate (205) is screwed to the flower-grabbing bracket (207) and the lifting lower plate (24) respectively. The pin positioning plate (204) has several round holes. A fixing pin (206) is inserted into the round holes. The end of the fixing pin (206) is connected to the flower-grabbing blade (208) by a screw.

4. The automatic steamed bun production pattern forming machine according to claim 2, characterized in that: Both ends of the power rod (203) are provided with circumferential grooves. One end of the power rod (203) passes through the axis of the flower grabbing bracket (207). The ends of several flower grabbing blades (208) are movably installed in the circumferential groove at one end of the power rod (203). The circumferential groove at the other end of the power rod (203) is engaged with the bottom surface of the lifting frame plate (23).

5. The automatic steamed bun production pattern forming machine according to claim 1, characterized in that: The preform single-motion source positioning component (4) includes a second motor (41), a first preform positioning slide plate (42), and a second preform positioning slide plate (43). The first preform positioning slide plate (42) and the second preform positioning slide plate (43) are slidably mounted on the guide rail seat (9). The second motor (41) is mounted on the bottom surface of the guide rail seat (9). The driving end of the second motor (41) passes through the guide rail seat (9). A driving gear is installed on the driving end of the second motor (41). The first preform positioning slide plate (42) and the second preform positioning slide plate (43) are both meshed with the driving gear.

6. The automatic steamed bun production pattern forming machine according to claim 5, characterized in that: The first preform positioning slide (42) and the second preform positioning slide (43) have the same structure.

7. The automatic steamed bun production pattern forming machine according to claim 6, characterized in that: The first preform positioning slide plate (42) includes a slider (421), a preform positioning plate (422), and a rack (423). The rack (423) is fixedly installed on the side wall of the slider (421). The rack (423) meshes with a gear. The slider (421) also has a through hole that matches the rack (423). The second preform positioning slide plate (43) is slidably connected to the through hole.

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