Steamed stuffed bun pleating mechanism

Abstract

The utility model relates to a steamed stuffed bun production device technical field, specifically disclose a steamed stuffed bun knead fold mechanism, including integral moving assembly, the local moving assembly of connection in integral moving assembly output and the knead fold assembly of connection in local moving assembly output, integral moving assembly is used for driving local moving assembly and knead fold assembly synchronous in vertical direction moves, local moving assembly is used for driving knead fold assembly moves in vertical direction, the knead fold assembly includes a plurality of knead fold blades, the blade of a plurality of knead fold blades is located at the bottom, and a plurality of knead fold blades are evenly distributed in the circumference, and the extension plane of all knead fold blades intersects the same vertical line. Adopt the technical scheme provided by the utility model, can solve the technical problem that the knead fold action of prior art is uncontrollable, and it is difficult to adapt to different specifications of steamed stuffed bun.

Description

Technical Field

[0001] This utility model relates to the technical field of steamed bun production equipment, specifically to a steamed bun pleating mechanism. Background Technology

[0002] With the rapid development of the food industry and consumers' increasing demands for food safety, hygiene, and appearance, traditional handmade steamed bun production methods can no longer meet the needs of large-scale, continuous, and standardized production. Therefore, steamed bun production is gradually moving towards mechanization and automation. Currently, automated steamed bun production lines have basically achieved full automation of the entire process, from dough preparation, dividing, rolling, filling, shaping, proofing to steaming, significantly improving production efficiency, reducing labor costs, and ensuring consistent product quality.

[0003] Pleating is one of the key processes in the steamed bun forming process. Pleating not only affects the bun's appearance but also the strength of the seal, the even distribution of moisture during steaming, and the final product's taste and quality. Therefore, the pleating mechanism, as the core component of the steamed bun forming equipment, directly impacts the bun's forming quality and the equipment's production efficiency.

[0004] Existing steamed bun pleating mechanisms mostly employ a single mechanical drive method, such as cylinder drive or cam mechanism driving the blade to perform the pleating operation. Their working principle is typically: the drive device moves the pleating blade vertically downwards, pressing and pleating the dough at the top of the steamed bun to form folds. However, existing technologies still have the following problems in practical applications:

[0005] 1. The pinching action is uncontrollable and difficult to adapt to different sizes of buns: Most existing pinching mechanisms are single-drive structures, which cannot realize the pinching action in stages and layers. It is difficult to flexibly adjust according to the size of the bun, the thickness of the dough and the depth of the pleats, resulting in unsatisfactory pinching effect, uneven distribution of pleats or different depths.

[0006] 2. The pinching pressure is not adjustable, which can easily damage the shape of the buns: The existing pinching mechanism uses a fixed stroke or fixed air pressure drive and lacks the function of adjusting the pinching force. This can easily cause problems such as the top of the bun being crushed, the pleats being unclear, or the seal being loose, which affects the consistency of the product.

[0007] 3. Complex structure, difficult adjustment, and high maintenance cost: Existing pleating mechanisms use multi-link, cam, or complex linkage structures, resulting in complex equipment structure, high assembly precision requirements, and difficult debugging. In addition, they are prone to vibration and noise during operation, which is not conducive to the long-term stable operation of the equipment. Utility Model Content

[0008] The present invention aims to provide a pleating mechanism for steamed buns, so as to solve the technical problem that the pleating action of the prior art is uncontrollable and difficult to adapt to steamed buns of different sizes.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A steamed bun pleating mechanism includes an overall moving component, a partial moving component connected to the output end of the overall moving component, and a pleating component connected to the output end of the partial moving component. The overall moving component drives the partial moving component and the pleating component to move synchronously in the vertical direction, and the partial moving component drives the pleating component to move in the vertical direction. The pleating component includes a plurality of pleating blades, the blade edges of which are located at the bottom and are evenly distributed in a circle. The extended surfaces of all the pleating blades intersect the same vertical line.

[0011] The principles and advantages of this scheme are:

[0012] In practical applications, the overall moving component drives the local moving component and the pinching component to move vertically, achieving precise positioning of the top of the bun. After positioning, the local moving component further drives the pinching component downward, causing the pinching blades at the bottom of the pinching component to pleat the top of the bun. The pinching component includes several circumferentially distributed pinching blades with their blades facing downward. The extended surfaces of all the pinching blades converge at the central axis of the top of the bun, simulating the action of fingers gathering towards the center when pinching, thus achieving concentrated pleating of the top of the bun and forming regular, aesthetically pleasing folds.

[0013] 1. This solution enables phased and controllable pleating, improving adaptability and consistency. Through the coordinated control of the overall and partial moving components, the phased action of "positioning—pressing—pleating" can be achieved. The overall movement is used to precisely position the relative height between the pleating component and the bun, while the partial movement is used to execute the actual pleating action. This multi-level control method makes the pleating process more controllable, allowing for flexible adjustments based on the size of different buns, dough thickness, and pleating requirements, thus improving the consistency and adaptability of the pleating effect.

[0014] 2. The layout of the pinching blades in this design is reasonable, which can improve the uniformity and aesthetics of the pleats. Multiple pinching blades are evenly distributed in a circle, and their extended surfaces intersect at the central axis of the bun. This can simulate the hand-pinching technique, causing the dough to gather towards the center, forming evenly distributed and distinct pleats, which significantly improves the appearance quality and market competitiveness of the bun.

[0015] 3. The pinching pressure of this solution is adjustable to avoid damaging the shape of the buns. The local moving components use adjustable drive methods such as servo motors or adjustable cylinders, which can flexibly adjust the downward pressure according to parameters such as the softness and hardness of the buns and the thickness of the dough. This avoids problems such as crushing the top of the buns or unclear pleats due to excessive pressure, thereby improving product consistency and yield.

[0016] 4. This solution features a simple structure and modular design, facilitating adjustment and maintenance. Compared to traditional multi-link and cam structures, this invention employs a drive method combining overall and partial movement, resulting in a simpler structure, smoother motion, and reduced mechanical vibration and noise. Furthermore, the modular design of the pinching assembly allows for easy replacement of different numbers or shapes of blades to meet diverse product requirements, reducing maintenance costs and improving the maintainability and scalability of the equipment.

[0017] 5. This solution is easily integrated into automated production lines, improving production efficiency. The pleating mechanism provided in this solution can be synchronously controlled with the entire bun production line (such as conveying, positioning, forming, steaming, etc.) through a controller, reducing manual intervention, improving the automation level and production efficiency of the entire line, and meeting the needs of modern food industry for continuous and intelligent production.

[0018] Preferably, as an improvement, it also includes a guide component for guiding the synchronous movement of the local moving component and the pinching component, as well as the individual movement of the pinching component.

[0019] Beneficial Effects: This solution, by incorporating a guide component, ensures stable and precise motion trajectories when the overall moving component drives the local moving component and the pinching component downwards synchronously, and when the local moving component drives the pinching component downwards independently. The guide component provides reliable guidance and support for the local moving component and the pinching component, ensuring they maintain vertical movement during vertical motion and preventing pinching position deviations or instability due to offset or swaying, thus improving pinching accuracy and consistency. Furthermore, the guide component effectively prevents mechanical interference or abnormal friction caused by misalignment of moving parts during operation, extending equipment lifespan and reducing maintenance frequency.

[0020] Preferably, as an improvement, the overall moving assembly includes a mounting frame, an overall motor, and an overall lead screw. The overall motor is vertically fixedly connected to the mounting frame, and the screw of the overall lead screw is coaxially fixedly connected to the output shaft of the overall motor. The partial moving assembly includes a mounting plate, a partial motor, and a partial lead screw. The mounting plate is fixedly connected to the nut of the overall lead screw, the partial motor is vertically fixedly connected to the mounting plate, and the screw of the partial lead screw is coaxially fixedly connected to the output shaft of the partial motor.

[0021] Beneficial Effects: This solution achieves multi-level vertical movement control of both the overall and local components through a motor-screw drive, offering excellent precision and controllability. Employing a servo motor or stepper motor in conjunction with the screw drive provides high positioning accuracy and stroke controllability, allowing for flexible adjustment of the overall and local movement stroke and speed based on parameters such as bun size and dough thickness, thus improving the adaptability and consistency of the pleating action. Furthermore, both the overall and local movement components utilize a direct-drive motor-screw structure, offering advantages such as short transmission paths, fast response, and minimal backlash, which enhances equipment operating efficiency and action response speed. In addition, the screw drive offers advantages such as smooth operation, low noise, and high rigidity, significantly reducing vibration and impact during equipment operation compared to traditional cylinder or cam mechanisms, thereby improving equipment stability and service life.

[0022] Preferably, as an improvement, the guide assembly includes at least two guide rods vertically fixedly connected to the mounting bracket, and the mounting plate has mounting holes corresponding to the positions of the guide rods, with the guide rods vertically slidably inserted into the mounting holes at the corresponding positions.

[0023] Beneficial Effects: This solution, through the cooperation of the guide rod and the mounting hole, provides reliable vertical guidance for the mounting plate and its locally moving components and pinching components, ensuring stable and precise movement trajectories during vertical movement. The guide rod and mounting hole together form a sliding guide structure, effectively limiting the deflection and swaying of the mounting plate during movement, ensuring that the locally moving components and pinching components always run vertically, improving the positioning accuracy and consistency of the pinching action. Furthermore, both the guide rod and the mounting hole are standard mechanical structures, easy to manufacture and assemble, and have low maintenance costs.

[0024] Preferably, as an improvement, the pleating assembly includes a mounting cylinder, which is coaxially and movably sleeved on the screw of the local lead screw and fixedly connected to the nut of the local lead screw; a mounting ring is coaxially and fixedly sleeved on the mounting cylinder, and a plurality of mounting posts are evenly arranged circumferentially at the bottom of the mounting ring, and the pleating blade is detachably and fixedly connected to the mounting post one by one.

[0025] Beneficial Effects: This solution achieves the up-and-down movement of the pleating assembly through the connection between the mounting cylinder and the lead screw nut. The layout of the mounting ring and mounting posts ensures a uniform circumferential distribution of multiple pleating blades, facilitating regular pleating of the top of the bun. The mounting posts, evenly spaced circumferentially at the bottom of the mounting ring, provide a precise mounting reference for the pleating blades, ensuring uniform circumferential distribution and resulting in evenly distributed, clearly layered pleats during the pleating process, significantly improving the appearance quality of the bun. The pleating blades are detachably fixed to the mounting posts, facilitating the replacement of blades of different shapes, sizes, or quantities according to bun specifications. It also facilitates daily cleaning and replacement of worn blades, enhancing the flexibility and ease of maintenance of the equipment. The mounting cylinder is coaxially sleeved on the local lead screw and fixedly connected to the nut, ensuring the coaxiality and smooth operation of the pleating assembly during its up-and-down movement, reducing eccentricity, wobbling, and other adverse effects, and improving pleating accuracy and equipment reliability. By changing the mounting rings with different hole layouts or adjusting the position of the mounting posts, the blade distribution density and pleating range can be flexibly adjusted to adapt to the production of steamed buns with different diameters and numbers of pleats, thereby improving the equipment's versatility and flexible production capabilities.

[0026] Preferably, as an improvement, the pinching assembly further includes a limiting ring coaxially fixedly sleeved on the mounting cylinder. The limiting ring is located below the mounting ring, and a limiting groove is formed on the outer peripheral wall of the limiting ring corresponding to the position of the pinching blade. The width of the limiting groove matches the thickness of the pinching blade.

[0027] Beneficial Effects: This solution uses a limiting ring and its limiting groove to constrain the sides of the pleating blade, maintaining its stable posture during movement and preventing swaying, offset, or uneven force from affecting the pleating effect. The limiting groove provides lateral support to the pleating blade, preventing swaying or deflection during up-and-down movement, thus ensuring consistent blade posture when in contact with the bun, improving the stability and forming quality of the pleating action. Furthermore, the limiting groove provides auxiliary support to the blade during pleating, effectively enhancing its structural rigidity, reducing deformation or breakage caused by uneven force or bending, and extending blade life. Simultaneously, the precise positioning of the blades by the limiting groove ensures consistent circumferential positioning of each blade, achieving uniform pleating of the top dough of the bun, forming regular and aesthetically pleasing folds, and improving product appearance quality. In addition, the limiting groove can serve as a guide structure during blade installation, assisting operators in quickly and accurately installing the blades to the designated position, improving assembly efficiency and accuracy.

[0028] Preferably, as an improvement, the bottom of all the pinching blades is bent in a clockwise or counterclockwise direction, and the included angle between the upper and lower parts of the pinching blade after bending is an obtuse angle.

[0029] Beneficial Effects: This solution optimizes the force distribution and shaping effect of the pleating blade by designing its bottom with an obtuse angle and a directional bend. The bend at the bottom of the blade simulates the sliding and gathering motion of fingers during manual pleating, resulting in a more natural sliding and gathering effect of the dough, creating more even and aesthetically pleasing pleats. The obtuse angle structure ensures a more balanced distribution of horizontal and vertical forces when the blade contacts the dough, preventing excessive stretching or tearing when the blade presses down vertically. This is especially beneficial for thinner or softer dough materials. The consistent bend of the blade guides the dough towards the center of the bun during pleating, enhancing the seal and preventing openings or filling leakage during steaming, thus improving the product's structural integrity.

[0030] Preferably, as an improvement, the guide assembly further includes an integral guide plate, a synchronization plate is fixedly connected between the integral guide plate and the mounting plate, an integral guide hole is opened on the integral guide plate corresponding to the position of the guide rod, and the guide rod is vertically slidably inserted into the integral guide hole at the corresponding position; a guide ring is fixedly connected to the integral guide plate, and a mounting cylinder is vertically slidably inserted into the guide ring, the mounting cylinder is located below the guide ring, and the outer diameter of the mounting cylinder is larger than the outer diameter of the guide ring.

[0031] Beneficial Effects: This solution, by introducing components such as an integrated guide plate, a synchronization plate, and a guide ring, further enhances the guiding accuracy and operational stability of the pleating assembly during multi-stage movement. The integrated guide plate is rigidly connected to the mounting plate via the synchronization plate, ensuring the synchronization of movement between the overall moving assembly and the local moving components. The cooperation between the guide rod and the integrated guide hole further enhances the guiding rigidity, making the entire moving system operate more smoothly and accurately. The guide ring is fixed to the integrated guide plate and provides independent vertical guiding support for the mounting cylinder, preventing swaying or offset caused by excessive cantilever length or uneven force on the mounting cylinder, thus improving the operational stability and positioning accuracy of the pleating assembly. The multiple guiding structures reduce friction and wear between moving parts, improving the stability and durability of the equipment under high-speed, high-frequency operation, and extending the equipment's service life.

[0032] Preferably, as an improvement, the guide assembly further includes a partial guide plate, which is embedded and fixed to the mounting cylinder. The partial guide plate has a partial guide hole at the position corresponding to the guide rod, and the guide rod is vertically slidably inserted into the corresponding partial guide hole.

[0033] And / or, the pinching assembly further includes a connecting cylinder, which is coaxially slidably sleeved on the screw of the local lead screw and fixedly connected to the nut of the local lead screw, and the connecting cylinder is fixedly connected to the local guide plate.

[0034] Beneficial Effects: This solution, by introducing a local guide plate and connecting cylinder, further improves the guiding system and structural stability of the pleating mechanism during multi-stage movement. The local guide plate, through the cooperation of local guide holes and guide rods, provides a second level of guiding support for the mounting cylinder and pleating assembly, effectively preventing swaying and deviation during high-speed or heavy-load operation, significantly improving the repeatability and consistency of the pleating action. Adding a local guide plate to the existing overall guide plate and guide ring creates a double guiding structure, enhancing the system's reliability. Even with wear or uneven stress in some guide structures, stable operation of the equipment is guaranteed. The connecting cylinder is fixedly connected to the local lead screw nut and rigidly connected to the local guide plate, creating a structural linkage between the transmission and guiding components. This improves the rigidity and synchronization of the overall motion system, ensuring uniform force and smooth movement of the pleating assembly during vertical motion.

[0035] Preferably, as an improvement, the overall guide plate is located below the partial guide plate, and a limiting cylinder is fixedly connected to the top of the overall guide plate at the position corresponding to the guide rod, and the guide rod is vertically slidably inserted into the limiting cylinder at the corresponding position.

[0036] Beneficial Effects: This solution utilizes a limiting cylinder on the overall guide plate to provide lower guidance and support for the guide rod. Combined with local guide plates and local guide holes, it constructs a multi-level guiding system with layered and coordinated functions. The limiting cylinder provides lower guidance and support for the guide rod, forming a multi-level guiding structure with the local guide holes on the local guide plate, effectively improving the vertical guiding accuracy and operational stability of the entire pleating mechanism. The limiting cylinder effectively constrains the lower part of the guide rod, preventing tilting or offset due to uneven force or external disturbances, thereby improving the system's resistance to eccentric loads and ensuring the smooth and consistent operation of the pleating assembly. Furthermore, the limiting cylinder also limits the minimum distance between the local guide plate and the overall guide plate, thus limiting the maximum downward movement of the pleating assembly relative to the overall guide plate after the overall movement is complete. This prevents the pleating assembly from moving too far downwards, which could lead to excessive pleating and damage to the bun skin. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model.

[0038] Figure 2 This is a front view of Embodiment 1 of this utility model.

[0039] Figure 3This is a right view of Embodiment 1 of the present utility model. Detailed Implementation

[0040] The following detailed description illustrates the specific implementation method:

[0041] The reference numerals in the accompanying drawings include: overall moving assembly 10, mounting bracket 11, overall motor 12, overall lead screw 13, partial moving assembly 20, mounting plate 21, partial motor 22, partial lead screw 23, pinching assembly 30, connecting cylinder 31, mounting cylinder 32, mounting ring 33, mounting column 34, pinching blade 35, limiting ring 36, guide assembly 40, guide rod 41, partial guide plate 42, connecting groove 43, overall guide plate 44, synchronization plate 45, connecting plate 46, guide ring 47, and limiting cylinder 48.

[0042] Example 1

[0043] A pleating mechanism for steamed buns, as shown in the attached image. Figure 1 , Figure 2 and Figure 3 As shown, the assembly includes an overall moving component 10, a partial moving component 20, a pleating component 30, and a guide component 40. The partial moving component 20 is connected to the output end of the overall moving component 10, and the pleating component 30 is also connected to the output end of the partial moving component 20. The overall moving component 10 drives the partial moving component 20 and the pleating component 30 to move synchronously in the vertical direction. The partial moving component 20 drives the pleating component 30 to move vertically. The pleating component 30 is used to pleat the top of the bun to form folds. The guide component 40 guides the synchronous movement of the partial moving component 20 and the pleating component 30, as well as the individual movement of the pleating component 30.

[0044] The overall moving assembly 10 includes a mounting frame 11, an overall motor 12, and an overall lead screw 13. The overall motor 12 is vertically fixedly connected to the top of the mounting frame 11, and the output shaft of the overall motor 12 faces downward. The screw of the overall lead screw 13 is coaxially fixedly connected to the output shaft of the overall motor 12.

[0045] The local moving assembly 20 includes a mounting plate 21, a local motor 22, and a local lead screw 23. The mounting plate 21 is sleeved on the nut of the integral lead screw 13 and is fixedly connected to the nut of the integral lead screw 13. The mounting plate 21 is horizontally positioned, and the local motor 22 is vertically fixedly connected to the top of the mounting plate 21, with the output shaft of the local motor 22 passing downward through the mounting plate 21. The screw of the local lead screw 23 is coaxially fixedly connected to the output shaft of the local motor 22.

[0046] The pleating assembly 30 includes a connecting cylinder 31, which is coaxially and movably sleeved on the screw of the local lead screw 23, with the top of the connecting cylinder 31 fixedly connected to the bottom of the nut of the local lead screw 23. A mounting cylinder 32 is fixedly connected to the bottom of the connecting cylinder 31, and the mounting cylinder 32 is coaxially and movably sleeved on the screw of the local lead screw 23. A mounting ring 33 is coaxially and fixedly sleeved on the mounting cylinder 32, and several mounting posts 34 are fixedly connected to the bottom of the mounting ring 33, with the mounting posts 34 evenly distributed circumferentially. A pleating blade 35 is detachably and fixedly connected to the bottom of each mounting post 34 by bolts. The blade edges of all pleating blades 35 are located at the bottom, and the extended surfaces of all pleating blades 35 intersect on the same vertical line. The bottom of all pleating blades 35 is bent counterclockwise, and the included angle between the upper and lower parts of the pleating blade 35 after bending is an obtuse angle.

[0047] In this embodiment, the pleating assembly 30 further includes a limiting ring 36 coaxially fixedly sleeved on the mounting cylinder 32. The limiting ring 36 is located below the mounting ring 33, and a limiting groove is formed on the outer peripheral wall of the limiting ring 36 corresponding to the position of the pleating blade 35. The limiting groove penetrates the upper and lower end faces of the limiting ring 36, and the pleating blade 35 is inserted into the limiting groove at the corresponding position. The width of the limiting groove matches the thickness of the pleating blade 35, so that the limiting groove can limit the pleating blade 35 and prevent the pleating blade 35 from shaking when performing the pleating operation on the top of the bun.

[0048] The guide assembly 40 includes two guide rods 41 that are vertically fixedly connected to the mounting bracket 11. The mounting plate 21 has mounting holes corresponding to the positions of the guide rods 41, and the guide rods 41 are vertically slidably inserted into the mounting holes at the corresponding positions.

[0049] The guide assembly 40 also includes a partial guide plate 42, which is horizontally positioned and its top is fixedly connected to the bottom of the connecting cylinder 31. A connecting groove 43 is formed on the side of the partial guide plate 42 away from the mounting bracket 11, extending through the upper and lower end faces of the partial guide plate 42. The mounting cylinder 32 is vertically inserted into the connecting groove 43, and its outer wall is embedded and fixedly connected to the inner wall of the connecting groove 43. A partial guide hole is formed on the partial guide plate 42 corresponding to the position of the guide rod 41, and the guide rod 41 is vertically slidably inserted into the corresponding partial guide hole. In this embodiment, a clearance hole is formed on the partial guide plate 42 corresponding to the position of the screw of the integral lead screw 13, and the screw of the integral lead screw 13 is vertically and movably inserted into the clearance hole.

[0050] The guide assembly 40 also includes an integral guide plate 44, which is horizontally positioned below the partial guide plate 42. Two synchronization plates 45 are vertically fixedly connected between the integral guide plate 44 and the mounting plate 21. The integral guide plate 44 has integral guide holes corresponding to the positions of the guide rods 41, and the guide rods 41 are vertically slidably inserted into the integral guide holes at the corresponding positions. A clearance groove is formed on the side of the integral guide plate 44 away from the mounting bracket 11, and the clearance groove extends through the upper and lower end faces of the integral guide plate 44. The mounting ring 33 is vertically movably inserted into the clearance groove.

[0051] In this embodiment, a connecting plate 46 is fixedly connected to the top of the integral guide plate 44. A connecting hole is formed on the connecting plate 46 corresponding to the position of the mounting cylinder 32, and the connecting hole penetrates the upper and lower end faces of the connecting plate 46. The mounting cylinder 32 is vertically slidably inserted into the connecting hole. A guide ring 47 is fixedly connected to the top of the connecting plate 46, and the guide ring 47 is coaxially sleeved on the mounting cylinder 32. The outer wall of the mounting cylinder 32 slides against the inner wall of the guide ring 47. The mounting cylinder 32 is located below the connecting plate 46, and the outer diameter of the mounting cylinder 32 is larger than the diameter of the connecting hole, allowing the top of the mounting cylinder 32 to abut against the bottom of the connecting plate 46.

[0052] Two limiting cylinders 48 are vertically fixedly connected to the top of the overall guide plate 44. The limiting cylinders 48 are coaxially arranged with the overall guide hole, and the guide rod 41 is vertically slidably connected in the corresponding limiting cylinder 48. The limiting cylinders 48 can not only guide the overall guide plate 44 to move up and down along the guide rod 41, but also limit the minimum distance between the local guide plate 42 and the overall guide plate 44, so as to prevent the pleating assembly 30 from pleating the top of the bun too deeply.

[0053] The specific implementation process is as follows:

[0054] In actual use, the mounting bracket 11 is fixedly connected to the machine frame with bolts to realize the installation of the entire pleating mechanism on the machine frame. The pleating mechanism is located above the conveying device. When the conveying device transports the buns to the area below the pleating mechanism, it pauses so that the buns remain below the pleating mechanism so that the pleating mechanism can perform the pleating operation on the buns.

[0055] The overall moving assembly 10 first drives the partial moving assembly 20 and the pleating assembly 30 to move downwards synchronously until the bottom of the pleating blade 35 contacts the top of the bun. Specifically, the overall motor 12 drives the screw of the overall lead screw 13 to rotate, causing the mounting plate 21 to move downwards along with the nut of the overall lead screw 13, which in turn drives the partial motor 22 and the pleating assembly 30 connected to the output shaft of the partial motor 22 to move downwards together. During this process, the overall guide plate 44, which is fixedly connected to the mounting plate 21 via the synchronization plate 45, and the partial guide plate 42, which is fixedly connected to the pleating assembly 30, move downwards synchronously. Through the sliding cooperation between the mounting plate 21, the overall guide plate 44, the partial guide plate 42, and the guide rod 41, the overall movement of the partial moving assembly 20 and the pleating assembly 30 is guided.

[0056] Subsequently, the local moving component 20 drives the pinching component 30 to move downwards independently, causing the pinching blade 35 to press into the top of the bun, completing the pinching operation. Specifically, the local motor 22 drives the screw of the local lead screw 23 to rotate, causing the pinching component 30 to move downwards along with the nut of the local lead screw 23, pressing the blade edge at the bottom of the pinching blade 35 into the top of the bun. During this process, the local guide plate 42, which is fixedly connected to the connecting cylinder 31 and the mounting cylinder 32, moves downwards synchronously. The sliding engagement between the local guide plate 42 and the guide rod 41 guides the local movement of the pinching mechanism. At the same time, the sliding engagement between the mounting cylinder 32 and the guide ring 47 further guides the local movement of the pinching mechanism.

[0057] After the pinching operation is completed, the local motor 22 drives the screw of the local lead screw 23 to rotate in the opposite direction, thereby resetting the pinching assembly 30. Then, the overall motor 12 drives the screw of the overall lead screw 13 to rotate in the opposite direction, thereby resetting the local moving assembly 20 and the pinching assembly 30. The conveying device then conveys the pinched bun to the next process.

[0058] Example 2

[0059] A steamed bun pinching mechanism differs from Embodiment 1 in that: a photoelectric sensor is fixedly connected to the mounting frame 11, and a sensor sheet metal is fixedly connected to the mounting plate 21 at the position corresponding to the photoelectric sensor. The photoelectric sensor and the sensor sheet metal cooperate to realize the zeroing of the mounting plate 21, preparing for the next pinching operation.

[0060] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A pleating mechanism for steamed buns, characterized in that: The device includes an overall moving component, a partial moving component connected to the output end of the overall moving component, and a pinching component connected to the output end of the partial moving component. The overall moving component is used to drive the partial moving component and the pinching component to move synchronously in the vertical direction, and the partial moving component is used to drive the pinching component to move in the vertical direction. The pinching component includes a plurality of pinching blades, the blades of which are located at the bottom and are evenly distributed in a circle. The extended surfaces of all the pinching blades intersect the same vertical line.

2. The pleating mechanism for steamed buns according to claim 1, characterized in that: It also includes a guide component, which guides the synchronous movement of the local moving component and the pinching component, as well as the individual movement of the pinching component.

3. The pleating mechanism for steamed buns according to claim 2, characterized in that: The overall moving assembly includes a mounting frame, an overall motor, and an overall lead screw. The overall motor is vertically fixedly connected to the mounting frame, and the screw of the overall lead screw is coaxially fixedly connected to the output shaft of the overall motor. The local moving component includes a mounting plate, a local motor, and a local lead screw. The mounting plate is fixedly connected to the nut of the overall lead screw, the local motor is vertically fixedly connected to the mounting plate, and the screw of the local lead screw is coaxially fixedly connected to the output shaft of the local motor.

4. The pleating mechanism for steamed buns according to claim 3, characterized in that: The guide assembly includes at least two guide rods that are vertically fixed to the mounting frame. The mounting plate has mounting holes corresponding to the positions of the guide rods, and the guide rods are vertically slidably inserted into the mounting holes at the corresponding positions.

5. A pleating mechanism for steamed buns according to claim 4, characterized in that: The pleating assembly includes a mounting cylinder, which is coaxially and movably sleeved on the screw of the local lead screw and fixedly connected to the nut of the local lead screw; a mounting ring is coaxially and fixedly sleeved on the mounting cylinder, and a number of mounting posts are evenly arranged circumferentially at the bottom of the mounting ring, and the pleating blades are detachably and fixedly connected to the mounting posts one by one.

6. A pleating mechanism for steamed buns according to claim 5, characterized in that: The pinching assembly also includes a limiting ring coaxially fixedly sleeved on the mounting cylinder. The limiting ring is located below the mounting ring, and a limiting groove is formed on the outer peripheral wall of the limiting ring corresponding to the position of the pinching blade. The width of the limiting groove matches the thickness of the pinching blade.

7. A pleating mechanism for steamed buns according to claim 6, characterized in that: The bottom of all the pinch blades is bent in a clockwise or counterclockwise direction, and the included angle between the upper and lower parts of the pinch blade after bending is an obtuse angle.

8. A pleating mechanism for steamed buns according to claim 7, characterized in that: The guide assembly also includes an integral guide plate, and a synchronization plate is fixedly connected between the integral guide plate and the mounting plate. The integral guide plate has an integral guide hole at the position corresponding to the guide rod, and the guide rod is vertically slidably inserted into the integral guide hole at the corresponding position. A guide ring is fixedly connected to the overall guide plate, and the mounting cylinder is vertically slidably inserted into the guide ring. The mounting cylinder is located below the guide ring, and the outer diameter of the mounting cylinder is larger than the outer diameter of the guide ring.

9. A pleating mechanism for steamed buns according to claim 8, characterized in that: The guide assembly also includes a partial guide plate, which is embedded and fixed to the mounting cylinder. The partial guide plate has a partial guide hole at the position corresponding to the guide rod, and the guide rod is vertically slidably inserted into the corresponding partial guide hole. And / or, the pinching assembly further includes a connecting cylinder, which is coaxially slidably sleeved on the screw of the local lead screw and fixedly connected to the nut of the local lead screw, and the connecting cylinder is fixedly connected to the local guide plate.

10. A pleating mechanism for steamed buns according to claim 9, characterized in that: The overall guide plate is located below the partial guide plate. The top of the overall guide plate is fixedly connected to the limit cylinder corresponding to the position of the guide rod. The guide rod is vertically slidably inserted into the limit cylinder at the corresponding position.

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