A forming die for processing a steamed stuffed bun type food with spiral lines

Through the design of the lifting and rotating mechanism and the linkage mold core structure, the mold cup forms a rotating pattern on the surface of the bun, which solves the problem that existing molds cannot process spiral patterns and improves the appearance of the bun.

CN224291134UActive Publication Date: 2026-05-29CHENGDU SOONTRUE MECHANICAL EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU SOONTRUE MECHANICAL EQUIP CO LTD
Filing Date
2025-05-27
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing molds for steamed buns cannot create spiral patterns on the surface of the buns similar to those made by hand, resulting in a significant difference in shape between the finished buns and handmade ones.

Method used

A molding die with a lifting and rotating mechanism was designed. Through the rotation of the mold cup and the linkage structure of the vertical convex strip and the groove, combined with the gear transmission system driven by the servo motor, the synchronous rotation and up-and-down movement of the mold cup are realized to form a spiral pattern.

Benefits of technology

It achieves the creation of beautiful rotating patterns on the surface of steamed buns, making the shape of the finished buns closer to that of handmade buns and improving the aesthetics of automated production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the technical field of food automation processing, and particularly relates to a forming die for processing steamed stuffed buns with spiral patterns, which comprises a skin connecting plate, a plurality of converging cutter blades arranged below a through hole of the skin connecting plate, a die cup arranged below the converging cutter blades, and a jacking and rotating mechanism arranged below the die cup and capable of driving the die cup to rotate. The jacking mechanism and the rotating mechanism are matched with the die cup and other structures, so that spiral patterns can be directly formed on the surface of steamed stuffed buns, the formed steamed stuffed buns are more beautiful, and are closer to the shape of hand-made steamed stuffed buns. The spiral patterns are realized by the lower-arranged rotating mechanism, so that the appearance of steamed stuffed buns and shumai products is beautiful.
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Description

Technical Field

[0001] This application belongs to the field of food automation processing technology, specifically relating to a forming mold for processing steamed buns with spiral patterns. Background Technology

[0002] In the automated production process of steamed buns, the sealing process often fails to naturally create spiral patterns on the surface of the bun, resulting in a significant difference in shape between the finished buns and those made by hand.

[0003] For example, in the prior art, there is a Chinese utility model patent with patent application number CN201821840029.0, entitled "A Steamed Bun-Type Food Gathering Mold," which discloses: This application belongs to the field of food processing technology, and particularly relates to a steamed bun-type food gathering mold that utilizes a circular workstation to process steamed bun-type foods. It includes a receiving plate with through holes, a mold cup below the through holes, and multiple gathering blocks between the mold cup and the receiving plate for pinching and sealing the dough. Below each gathering block is a blade for cutting the dough after sealing. The blade can cut the dough above the pinched area after the gathering blocks are pinched together. The blade achieves a reciprocating motion driven by a transmission structure. Although the above patent achieves the functions of dough pressing, dough cutting, steamed bun demolding, and crumb removal through a single mold, the surface of the steamed bun formed only shows the texture of the gathering blocks in contact with the dough, and its shape still differs from the spiral texture created by hand. Summary of the Invention

[0004] To address the problem that existing molds for making steamed buns cannot produce spiral patterns similar to those made by hand, a new mold for processing steamed buns with spiral patterns is proposed.

[0005] To achieve the above-mentioned technical effects, the technical solution of this application is as follows:

[0006] A forming mold for processing steamed buns with spiral patterns includes a receiving plate with a through hole. A plurality of closing and cutting blades are arranged below the through hole. A mold cup is arranged below the closing and cutting blades. A lifting and rotating mechanism that can move up and down and drive the mold cup to rotate is arranged below the mold cup.

[0007] Furthermore, the lifting and rotating mechanism includes a lifting mechanism and a rotating mechanism. The lifting mechanism and the rotating mechanism are fixedly connected. The lifting mechanism drives the rotating mechanism to rise and fall, and the rotating mechanism drives the mold cup to rotate.

[0008] Furthermore, the mold cup is connected to the linkage mold core structure, and the bottom of the linkage mold core structure is connected to a mold end face gear.

[0009] Furthermore, the inner side of the mold cup is evenly distributed with multiple vertical protrusions, and the outer side of the linkage mold core structure is evenly distributed with multiple vertical grooves, with the vertical protrusions located in the vertical grooves.

[0010] Furthermore, the rotating mechanism includes a servo motor, a shoulder gear, a linear rack, and a rotary gear. The output end of the servo motor is connected to the shoulder gear, which meshes with the linear rack. Rotary gears mesh at both ends of the linear rack, and a lifting end face gear is connected above each rotary gear.

[0011] Furthermore, a linear bearing mounting seat is installed in the middle of the linear circular rack, a linear bearing is installed in the linear bearing mounting seat, the linear circular rack passes through the linear bearing, and the linear bearing mounting seat is fixedly connected to the mounting plate below.

[0012] Furthermore, the lifting end face gear and the rotating gear are locked together by set screws to achieve synchronous rotation.

[0013] Furthermore, the lifting mechanism includes a slide cylinder, which is fixed on the bracket, and the output end of the cylinder is connected to the bottom of the mounting plate in the rotating mechanism.

[0014] Furthermore, the mold end face gear and the lifting end face gear are engaged by the lifting mechanism.

[0015] Furthermore, the plurality of retractable cutting blades are connected to a cutting drive mechanism, which is connected to a connecting rod, and an upper cam is provided at the end of the connecting rod.

[0016] The advantages of this application are:

[0017] 1. The lifting and rotating mechanisms of this application, in conjunction with structures such as mold cups, can directly form rotating patterns on the surface of steamed buns, making the shaped buns more aesthetically pleasing and closer to the shape of handmade buns. Achieving the rotating pattern through a lower-mounted rotating mechanism enhances the appearance of steamed buns and shumai products.

[0018] 2. The rotating mechanism of this application has a simple structure. It drives the linear rack to rotate through a servo motor, and the linear rack simultaneously drives the two lifting end face gears to rotate, thereby achieving the synchronous movement of the two lifting end face gears and realizing the effect of synchronously rotating the two mold cups at the same time.

[0019] 3. The mold cup and the linkage mold core structure of this application are engaged by protrusions and grooves to form a wave-like engagement structure, thereby achieving a firm connection between the two. The linkage mold core structure can drive the movement of the mold cup, and due to the wave shape, the area where the skin contacts will also produce texture due to pressure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this application.

[0021] Figure 2 This is a schematic diagram of the internal structure of the rotating mechanism in this application.

[0022] Figure 3 This is a schematic diagram of the lifting mechanism in this application.

[0023] Figure 4 This is a schematic diagram of the mold cup structure of this application.

[0024] Figure 5 This is a schematic diagram of the linkage mold core structure of this application.

[0025] Figure 6 This is a schematic diagram showing the positional relationship between the mold cup and the linkage mold core structure in this application.

[0026] In the attached image:

[0027] 1-Connecting plate, 2-Mold cup, 3-Retracting cutting blade, 4-Mold end face gear, 5-Linkage mold core structure, 6-Connecting rod, 7-Upper cam, 8-Lifting end face gear, 9-Lifting mechanism, 10-Rotating mechanism, 11-Servo motor, 12-Shoulder gear, 13-Linear circular rack, 14-Rotating gear, 15-Linear bearing mounting base, 16-Linear bearing. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this application, it should be noted that the terms "upper," "vertical," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] Example 1

[0034] like Figure 1 As shown, a forming mold for processing steamed buns with spiral patterns includes a receiving plate 1, a through hole on the receiving plate 1, a plurality of closing cutting blades 3 below the through hole, a mold cup 2 below the closing cutting blades 3, and a lifting and rotating mechanism 10 below the mold cup 2 that can move up and down and drive the mold cup 2 to rotate.

[0035] The dough is placed on the receiving plate 1, the filling is injected into the center of the dough, and the center of the dough is pushed downwards into the through hole. At this time, the transmission mechanism of the closing and cutting blades 3 drives multiple closing and cutting blades 3 to close towards the center of the through hole, sealing the dough. The closing and cutting blades 3 remain closed. The lifting and rotating mechanism 10 first moves upward to raise the height so that it contacts the mold cup 2, and then drives the mold cup 2 to rotate. After the rotation is completed, the closing and cutting blades 3 open again, thus completing the processing and forming of the spiral pattern of the dough in the steamed bun. The working principle and transmission structure of the closing and cutting blades 3 are existing technologies, and those skilled in the art know their structure. They are not innovations of this application, so this application will not elaborate on them.

[0036] The lifting mechanism 9 and rotating mechanism 10 of this application, in conjunction with structures such as the mold cup 2, can directly form rotating patterns on the surface of steamed buns, making the shaped buns more aesthetically pleasing and closer to the shape of handmade buns. The rotating pattern achieved through a lower-mounted rotating mechanism 10 enhances the aesthetic appeal of steamed buns and shumai products.

[0037] Example 2

[0038] like Figure 1 As shown, a forming mold for processing steamed buns with spiral patterns includes a receiving plate 1, a through hole on the receiving plate 1, a plurality of closing cutting blades 3 below the through hole, a mold cup 2 below the closing cutting blades 3, and a lifting and rotating mechanism 10 below the mold cup 2 that can move up and down and drive the mold cup 2 to rotate.

[0039] The dough is placed on the receiving plate 1, the filling is injected into the center of the dough, and the center of the dough is pushed downwards into the through hole. At this time, the transmission mechanism of the closing and cutting blades 3 drives multiple closing and cutting blades 3 to close towards the center of the through hole, sealing the dough. The closing and cutting blades 3 remain closed. The lifting and rotating mechanism 10 first moves upward to raise the height so that it contacts the mold cup 2, and then drives the mold cup 2 to rotate. After the rotation is completed, the closing and cutting blades 3 open again, thus completing the processing and forming of the spiral pattern of the dough in the steamed bun. The working principle and transmission structure of the closing and cutting blades 3 are existing technologies, and those skilled in the art know their structure. They are not innovations of this application, so this application will not elaborate on them.

[0040] The lifting and rotating mechanism 10 includes a lifting mechanism 9 and a rotating mechanism 10. The lifting mechanism 9 is fixedly connected to the rotating mechanism 10. The lifting mechanism 9 drives the rotating mechanism 10 to rise and fall, and the rotating mechanism 10 drives the mold cup 2 to rotate.

[0041] like Figure 1 , Figures 4-6 As shown, the mold cup 2 is connected to the linkage mold core structure 5, and the bottom of the linkage mold core structure 5 is connected to the mold end face gear 4. The rotating mechanism 10 drives the mold end face gear 4 to rotate, which in turn drives the linkage mold core structure 5 to rotate. The linkage mold core structure 5 performs a pinching and rotating operation on the mold cup 2, thereby forming a spiral pattern on the bun-like product. The "pinching" in pinching and rotating simulates the action of pinching the dough to wrap the filling, and the "rotating" simulates the action of rotating the bun after the dough is closed to form a spiral pattern.

[0042] The inner side of the mold cup 2 has multiple vertical ridges evenly distributed, and the outer side of the linkage mold core structure 5 has multiple vertical grooves evenly distributed, with the vertical ridges located within the vertical grooves. The linkage mold core structure 5 drives the mold cup 2 to rotate through the connection between the vertical grooves and the vertical ridges. The vertical ridges on the inner side of the mold cup 2 also create texture on the dough of the bun that falls into it, and the contact between these vertical ridges and the dough is similar to the pinching action of a human hand.

[0043] like Figure 2 As shown, the rotating mechanism 10 includes a servo motor 11, a shoulder gear 12, a linear rack 13, and a rotating gear 14. The output end of the servo motor 11 is connected to the shoulder gear 12, which meshes with the linear rack 13. The two ends of the linear rack 13 are respectively meshed with the rotating gear 14, and a lifting end face gear 8 is connected above each rotating gear 14.

[0044] A linear bearing mounting seat 15 is installed in the middle of the linear circular rack 13, and a linear bearing 16 is installed in the linear bearing mounting seat 15. The linear circular rack 13 passes through the linear bearing 16, and the linear bearing mounting seat 15 is fixedly connected to the mounting plate below.

[0045] The lifting end face gear 8 and the rotating gear 14 are locked together by a set screw to make synchronous rotation.

[0046] The shoulder gear 12 is mounted on the output end of the servo motor 11. When the servo motor 11 starts, it drives the shoulder gear 12 to rotate. The rotation of the shoulder gear 12 drives the linear rack 13 to move linearly. The linear rack 13 maintains linear (axial) movement through the linear bearing mounting seat 15 and the linear bearing 16. The linear movement of the linear rack 13 then drives the rotating gears 14 at both ends to rotate. The lifting end face gear 8 rotates synchronously under the drive of the rotating gears 14.

[0047] The upper part of the forming mold, namely the receiving plate 1, the retractable cutting blade 3, and the mold cup 2, is mounted on a servo-controlled rotary table. The left-right accuracy of the mold end face gear 4 relative to the lifting end face gear 8 is controlled by the servo motor 11, while the up-down accuracy is controlled by the guide rail of the cylinder of the lifting mechanism 9. The allowable error of the meshing of the upper and lower gears can be synchronized by the two speeds of the rotating mechanism 10 (the first speed is low-speed meshing of the gears, and the second speed transmits rotational power).

[0048] like Figure 1 and Figure 3 As shown, the lifting mechanism 9 includes a sliding cylinder, which is fixed on a bracket. The output end of the cylinder is connected to the bottom of the mounting plate in the rotating mechanism 10. The output end of the sliding cylinder drives the rotating mechanism 10 to rise and fall by extending and retracting. To ensure straightness, the sliding cylinder can be equipped with hydraulic dampers at both ends.

[0049] The mold end face gear 4 and the lifting end face gear 8 are engaged by the lifting mechanism 9.

[0050] Multiple retractable cutting blades 3 are connected to a cutting drive mechanism, which is connected to a connecting rod 6. An upper cam 7 is provided at the end of the connecting rod 6. The cutting drive mechanism is an existing structure. Under the action of a track or other guiding structure, the upper cam 7 drives the connecting rod 6 to move. The connecting rod 6 drives the cutting drive mechanism to rotate, and the cutting drive mechanism drives the multiple retractable cutting blades 3 to simultaneously close or open.

[0051] At the suction station, the dough is adsorbed onto the suction cup and then falls onto the receiving plate 1. The mold device moves on a circular track. When it moves to the filling station, the filling is pushed downwards and the dough is shaped into a concave shape. When the receiving plate 1 moves to the swirl station, an external force pushes the upper cam 7, which drives the upper push rod to move. This causes multiple retractable cutting blades 3 to retract synchronously and maintain this state. When the receiving plate 1 moves to the retractable station, the lifting mechanism 9 drives the rotating mechanism 10 to rise and begin the lifting action. Then, the rotating mechanism 10 drives the mold cup 2 in the receiving plate 1 to rotate, thereby creating swirl patterns on the surface of the bun-like food. The receiving plate 1 continues to move to the demolding station.

Claims

1. A forming mold for processing steamed buns with spiral patterns, comprising a receiving plate (1), wherein the receiving plate (1) is provided with a through hole, and a plurality of closing cutting blades (3) are provided below the through hole, characterized in that: Below the retractable cutting blade (3) is a mold cup (2), and below the mold cup (2) is a lifting and rotating mechanism (10) that can move up and down and drive the mold cup (2) to rotate.

2. The forming mold for processing steamed buns with spiral patterns according to claim 1, characterized in that: The lifting and rotating mechanism (10) includes a lifting mechanism (9) and a rotating mechanism (10). The lifting mechanism (9) is fixedly connected to the rotating mechanism (10). The lifting mechanism (9) drives the rotating mechanism (10) to rise and fall, and the rotating mechanism (10) drives the mold cup (2) to rotate.

3. The forming mold for processing steamed buns with spiral patterns according to claim 2, characterized in that: The mold cup (2) is connected to the linkage mold core structure (5), and the bottom of the linkage mold core structure (5) is connected to the mold end face gear (4).

4. The forming mold for processing steamed buns with spiral patterns according to claim 3, characterized in that: The inner side of the mold cup (2) is evenly distributed with multiple vertical protrusions, and the outer side of the linkage mold core structure (5) is evenly distributed with multiple vertical grooves, and the vertical protrusions are located in the vertical grooves.

5. A forming mold for processing steamed buns with spiral patterns according to claim 2, characterized in that: The rotating mechanism (10) includes a servo motor (11), a shoulder gear (12), a linear rack (13), and a rotary gear (14). The output end of the servo motor (11) is connected to the shoulder gear (12), which meshes with the linear rack (13). The two ends of the linear rack (13) are respectively meshed with rotary gears (14), and a lifting end face gear (8) is connected above each rotary gear (14).

6. The forming mold for processing steamed buns with spiral patterns according to claim 5, characterized in that: A linear bearing mounting seat (15) is installed in the middle of the linear circular rack (13), and a linear bearing (16) is installed in the linear bearing mounting seat (15). The linear circular rack (13) passes through the linear bearing (16), and the linear bearing mounting seat (15) is fixedly connected to the mounting plate below.

7. A forming mold for processing steamed buns with spiral patterns according to claim 5, characterized in that: The lifting end face gear (8) and the rotating gear (14) are locked together by a set screw to make synchronous rotational motion.

8. A forming mold for processing steamed buns with spiral patterns according to claim 2, characterized in that: The lifting mechanism (9) is a sliding cylinder, which is fixed on the bracket, and the output end of the cylinder is connected to the bottom of the mounting plate in the rotating mechanism (10).

9. A forming mold for processing steamed buns with spiral patterns according to claim 5, characterized in that: The mold end face gear (4) and the lifting end face gear (8) are engaged by the lifting mechanism (9).

10. A forming mold for processing steamed buns with spiral patterns according to claim 1, characterized in that: Multiple retractable cutting blades (3) are connected to a cutting drive mechanism, which is connected to a connecting rod (6), and an upper cam (7) is provided at the end of the connecting rod (6).