A type of shumai forming mold

By designing the dough support plate and forming tool assembly, the problem of multi-layer folding of the dough in the shumai forming mold was solved, achieving uniform wrinkles and improved taste in the shumai product.

CN224440227UActive Publication Date: 2026-07-03SYNEAR FOOD (HENAN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SYNEAR FOOD (HENAN) CO LTD
Filing Date
2025-07-01
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing shumai forming molds cause the dough to fold multiple times at the seam, resulting in a poor texture.

Method used

The shumai wrapper is supported by a support plate and a forming tool assembly. The support plate holds the wrapper and the forming tool assembly presses the top of the wrapper to fold it in an oriented manner. The combination of raised posts and recessed grooves creates uniform and fluffy folds.

Benefits of technology

By directionally folding the dough, excessive compression is avoided, ensuring that the folds are evenly distributed and fluffy, thus improving the appearance and taste of the shumai product.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a shumai forming mold, including a support plate and a forming tool assembly. The support plate holds the shumai wrapper and has an opening in its center. The forming tool assembly is located below the support plate and is used to press the top of the shumai wrapper downwards, causing it to fold. The forming tool assembly includes multiple forming tools, and a circumferential shaping surface is formed in the center of the forming tool assembly. The inner wall of the circumferential shaping surface is a closed rotary surface with grooves and protrusions on a cylindrical surface. The size of the circumferential shaping surface can change with the movement of the forming tools. The protrusions exert radial pressure on the wrapper as the circumferential shaping surface tightens radially, causing the wrapper to fold in a specific direction. The grooves provide space for the flow of the wrapper material. This utility model can prevent the wrapper from being over-compressed and squeezed, ensuring that the folds are evenly distributed and fluffy, which significantly improves the appearance and taste of the shumai product.
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Description

Technical Field

[0001] This utility model relates to the field of food processing machinery and equipment, and in particular to a shumai forming mold. Background Technology

[0002] Shaomai, also known as shaomai, is a type of steamed snack with a fluffy, pleated top resembling a flower. It consists of a dough wrapper filled with various fillings. Traditionally, shaomai is made by hand. While handmade shaomai tastes good, it is inefficient, labor-intensive, and difficult to meet the demands of modern economic conditions. Furthermore, it presents hygiene concerns.

[0003] The working principle of existing automatic shumai production equipment is as follows: a forming mold is set on the frame, the shumai wrapper is covered on the forming mold, the filling device fills the wrapper with filling, and the filling tube pushes the wrapper into the forming mold during filling. The forming mold shapes the food into a cylindrical shape.

[0004] The existing forming mold structure, as described in patent application number 201721330452.1 entitled "Shumai Wrapper Forming Mold," includes a mold body, a wrapper-receiving cavity at the top of the mold body, a forming cavity extending downwards on the bottom wall of the wrapper-receiving cavity, and recessed teeth along the circumferential direction on the bottom wall of the wrapper-receiving cavity for forming pleats on the top of the shumai. The drawback of this forming mold is that the solid portion between the recessed teeth squeezes and shapes the shumai wrapper, causing pleats to form on the top of the shumai after it descends through the wrapper-receiving cavity. These pleated wrappers are then gathered by the circumferentially closing mold. Because the diameter of the mold decreases significantly when it closes circumferentially, and the pleated wrappers are all folded inwards radially, the final finished product has multiple folds at the seam, resulting in a poor texture. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a shumai forming mold to solve the problem of poor taste caused by multiple layers of dough folding at the seam of the finished shumai in the prior art.

[0006] The present invention provides a shumai forming mold with the following technical solution:

[0007] A shumai forming mold includes a support plate and a forming cutter assembly. The support plate supports the shumai wrapper and has an opening in its center for the shumai to pass through when the wrapper is pressed downwards by a filling mechanism. The forming cutter assembly is located below the support plate and is used to press the top of the descending shumai wrapper to fold it. The forming cutter assembly includes multiple forming cutters, and a circumferential shaping surface is formed in the center of the forming cutter assembly. The inner wall of the circumferential shaping surface is a closed rotary surface with recessed grooves and protruding columns on a cylindrical surface. The size of the circumferential shaping surface can change with the movement of the forming cutters. The protruding columns generate radial extrusion force on the wrapper as the circumferential shaping surface tightens radially, and the recessed grooves provide space for the flow of wrapper material.

[0008] Furthermore, the forming tool assembly is movably mounted on the support plate in a circumferentially oriented manner.

[0009] Furthermore, the forming tool assembly includes six forming tools, and the lower end of the support plate is provided with a hexagonal annular slot track, along which the forming tools are guided to move.

[0010] Furthermore, the forming tool assembly also includes a base plate located below the forming tool. The forming tool includes a protrusion at its upper end. The base plate has pins that correspond one-to-one with the forming tool. The lower end of the forming tool has a bottom slot. The extension direction of the bottom slot is perpendicular to the extension direction of the protrusion. The pins are inserted into the bottom slot and can slide along it. Each side of the hexagonal annular slot track forms a transverse long slot. The six forming tools are each installed in a transverse long slot. The extension direction of the transverse long slot is consistent with the extension direction of the protrusion in the corresponding forming tool. The protrusion moves along the transverse long slot. When the base plate rotates, it can drive the multiple sets of forming tools to synchronously retract or open radially.

[0011] Furthermore, the protrusion is a protruding column.

[0012] Furthermore, the protruding post is fixed on the forming tool, and the inner side of the forming tool is recessed to form the recessed groove.

[0013] Furthermore, the recessed groove is tangent to the outer contour of the protruding post.

[0014] Furthermore, the two support plates are fixed together as a support plate group, and the two sets of forming tool assemblies in the support plate group are driven to move by the same drive mechanism.

[0015] Furthermore, the support plate is provided with a guide shaping embossing groove, which is connected to the opening.

[0016] In summary, this utility model has at least one of the following beneficial technical effects:

[0017] 1. During the dynamic shaping process of the shumai filling, the protruding pillars of the forming tool tighten in a ring. In addition to radial displacement, circumferential displacement also occurs during this tightening process. The circumferential displacement components of multiple protruding pillars gradually change circumferentially, thus the radial extrusion force applied to the dough also carries a circumferential component, causing the dough to fold in a specific direction. After being directionally extruded, the dough material overflows from the gaps in the recessed grooves, forming a layered, fluffy, wavy skirt. Therefore, this invention can prevent the dough from being excessively compressed and squeezed, ensuring that the folds are evenly distributed and fluffy, which significantly improves the appearance and taste of the shumai product.

[0018] 2. During the shaping process of shumai, the filling mechanism presses the shumai skin downwards while filling it. As the shumai moves downwards, the skin is first shaped by the guide shaping groove at the support plate, and then folded in a directional manner by the forming tool assembly to avoid the accumulation of skin wrinkles.

[0019] 3. The concave groove is tangent to the outer contour of the convex column. Therefore, when the convex column squeezes the dough to fold in a specific direction and causes the dough material to enter the concave groove to form wrinkles, the resulting wrinkle contour lines are smooth and without sharp edges, which helps to improve the appearance of the shumai product. Attached Figure Description

[0020] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0021] Figure 1 This is a schematic diagram of the structure of a shumai forming mold according to an embodiment of the present utility model;

[0022] Figure 2 yes Figure 1 An explosion diagram;

[0023] Figure 3 This is a structural diagram of the skin support plate assembly;

[0024] Figure 4 This is a schematic diagram of the forming tool.

[0025] Figure 5 This is a schematic diagram of the structure of the shumai forming mold driven by the same connecting rod;

[0026] Figure 6 yes Figure 5 An explosion diagram;

[0027] Explanation of reference numerals in the attached figures:

[0028] 100. Support plate assembly; 200. Forming tool assembly;

[0029] 1. Support plate; 2. Forming tool; 3. Circumferential cutting and shaping surface; 4. Base plate; 5. Connecting rod;

[0030] 11. Opening; 12. Guide shaping embossing groove;

[0031] 21. Protruding column; 22. Recessed groove; 23. Protrusion; 24. Bottom slot;

[0032] 41. Pin. Detailed Implementation

[0033] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0034] Embodiment 1 of a shumai forming mold of this utility model:

[0035] Reference Figures 1 to 6 A shumai forming mold includes a dough support plate assembly 100 and a forming cutter assembly 200. The dough support plate assembly 100 includes two dough support plates 1, which are fixed relative to each other. The dough support plate 1 is used to support a round shumai wrapper. An opening 11 is provided through the middle of the dough support plate 1, allowing the shumai wrapper, which is pressed downward by the filling mechanism, to pass through. Guide shaping and embossing grooves 12 are provided circumferentially at intervals on the dough support plate 1. The guide shaping and embossing grooves 12 are connected to the opening 11. The function of the guide shaping and embossing grooves 12 is to create pleats circumferentially at intervals on the shumai wrapper as it moves downward. Each dough support plate 11 is provided with a set of forming cutter assemblies 200, which are used to fold the pleats on the top of the shumai wrapper in the same direction to form fluffy and uniform pleats.

[0036] The forming tool assembly 200 includes multiple forming tools 2, which are distributed circumferentially and form a circumferential cutting and shaping surface 3 in the middle. Each forming tool 2 is provided with a protruding post 21, a recessed groove 22, a protrusion 23, and a bottom slot 24. Therefore, the inner wall shape of the circumferential cutting surface 3 is a closed rotary surface with a recessed groove 22 and a protruding post 21 on a cylindrical surface.

[0037] The lower end of the dough support plate 1 is provided with a hexagonal annular slot track. The forming cutter 2 is mounted on the hexagonal annular slot track via a top protrusion 23, allowing it to move linearly along its guide. As the forming cutter 2 moves circumferentially, the protruding post 21 at the inner end of the forming cutter 2 retracts radially and also displaces circumferentially. The folds on the top of the dough are folded to the same side under the action of the protruding post 21, forming a fluffy and evenly pleated shumai.

[0038] The principle of the multiple forming tools 2 in the forming tool assembly 200 synchronously tightening or opening radially is as follows:

[0039] The forming tool assembly 200 also includes a base plate 4 located below the forming tool 2. A pin 41 is mounted on the base plate 4, which inserts into the bottom slot 24 and can move longitudinally along it. The pin 41 drives the forming tool 2 to move longitudinally through the bottom slot 24, the extension direction of which is perpendicular to the extension direction of the protrusion 23. Each side of the hexagonal annular slot track extends laterally, forming a transverse long slot. The extension direction of the transverse long slot is consistent with the extension direction of the protrusion 23, which is inserted into and moves laterally along it. The protrusion 23 and the bottom slot 24 are perpendicular to each other and connect the upper support plate 1 and the lower base plate 4. When the drive unit drives the base plate 4 to rotate clockwise, the six sets of forming tools 2, under the synergistic effect of the bottom slot 24 and the top transverse long slot, form a radially converging rotational force. The inner wall of the tool gradually moves towards the center, causing the six sets of forming tools 2 to converge radially synchronously. When the drive unit drives the base plate 4 to rotate counterclockwise, the six sets of forming tools 2 open synchronously in the radial direction.

[0040] In this embodiment, the two sets of base plates 4 are connected together by the same connecting rod 5. Therefore, when the driving unit drives the connecting rod 5 to move, it can drive the two sets of forming tool assemblies 200 to move synchronously.

[0041] Embodiment 2 of the shumai forming mold of this utility model:

[0042] The difference between Example 2 and Example 1 is that the outlines of the protruding column 21 and the recessed groove 22 are tangent. Therefore, when the protruding column squeezes the dough to fold it in an orientation and causes the dough material to enter the recessed groove to form wrinkles, the turning point of the wrinkle outline is smooth and without edges, which is beneficial to improving the appearance of the shumai product.

[0043] In the foregoing description of this application, unless otherwise expressly specified and limited, the terms "fixed," "connected," etc., should be interpreted broadly. For example, the term "connection" can refer to a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium, or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this application, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] Based on the above description of this application, those skilled in the art will also understand that the following terms, such as "axial", "radial", "circumferential", etc., which indicate orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings of this application. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as a limitation on the present invention.

[0045] While various embodiments of the present invention have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A shumai forming mold characterized by: The device includes a support plate and a forming tool assembly. The support plate holds the shumai wrapper and has an opening in its center for the shumai to pass through when the wrapper is pressed down by the filling mechanism. The forming tool assembly is located below the support plate and is used to press the top of the shumai wrapper downwards to fold it. The forming tool assembly includes multiple forming tools, and a circumferential shaping surface is formed in the center of the forming tool assembly. The inner wall of the circumferential shaping surface is a closed rotary surface with grooves and protrusions on a cylindrical surface. The size of the circumferential shaping surface can change with the movement of the forming tools. The protrusions generate radial extrusion force on the wrapper as the circumferential shaping surface tightens radially, and the grooves provide space for the flow of wrapper material.

2. The shumai forming mold according to claim 1, characterized in that: The forming tool assembly is movably mounted on the support plate in a circumferentially oriented manner.

3. The shumai forming die according to claim 2, wherein: The forming tool assembly includes six forming tools, and the lower end of the support plate is provided with a hexagonal annular slot track, along which the forming tools are guided to move.

4. The shumai forming die according to claim 3, wherein: The forming tool assembly also includes a base plate located below the forming tool. The forming tool includes a protrusion at its upper end. The base plate has pins that correspond one-to-one with the forming tool. The lower end of the forming tool has a bottom slot. The extension direction of the bottom slot is perpendicular to the extension direction of the protrusion. The pins are inserted into the bottom slot and can slide along it. Each side of the hexagonal annular slot track forms a transverse long slot. The six forming tools are each installed in a transverse long slot. The extension direction of the transverse long slot is consistent with the extension direction of the protrusion in the corresponding forming tool. The protrusion moves along the transverse long slot. When the base plate rotates, it can drive the multiple sets of forming tools to synchronously retract or open radially.

5. The shumai forming die according to claim 4, wherein: The protrusion is a protruding column.

6. The shumai forming die according to claim 5, wherein: The protruding post is fixed on the forming tool, and the inner side of the forming tool is recessed to form the recessed groove.

7. The shumai forming die according to claim 6, wherein: The recessed groove is tangent to the outer contour of the protruding column.

8. The shumai forming mold according to any one of claims 1 to 7, characterized in that: The two support plates are fixed together as a support plate group, and the two forming tool assemblies in the support plate group are driven to move by the same drive mechanism.

9. The shumai forming mold according to any one of claims 1 to 7, characterized in that: The support plate is provided with a guide shaping embossing groove, which is connected to the opening.