A dough mixer for mooncake preparation
By designing a sealing cover and a connecting structure between the mixing drum and the dough mixer used for mooncake preparation, the problem of flour splashing and overflowing during mixing was solved, achieving effective utilization of materials and a cleaner production environment, thus improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JUNLIAN COUNTY GUANGJUN MOONCAKE CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-03
AI Technical Summary
Existing dough mixers used for mooncake preparation often cause flour and other powdery raw materials to splash and overflow from the opening of the mixing drum during the mixing process, resulting in material waste and pollution of the production environment.
Design a dough mixer for mooncake preparation. It adopts a docking structure between a sealed cover and a mixing drum. The mixing space is enclosed by a lifting component. The tight fit between the sealed cover and the mixing drum, along with the synergistic effect of the return spring, prevents material from splashing.
It effectively prevents materials from splashing and overflowing during the mixing process, reduces material waste, and improves the cleanliness of the production environment and the utilization rate of raw materials.
Smart Images
Figure CN224440221U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mooncake processing technology, specifically to a dough mixer for mooncake preparation. Background Technology
[0002] The mixing and processing of mooncake flour is the foundation of the crust's quality, and its technological development has always been closely intertwined with the inheritance of traditional techniques, changes in consumer demand, and the logic of industry operation. The transition from hand-kneading to mechanized mixing requires maintaining the delicate requirements for dough gluten strength and extensibility while preserving the anchor points of traditional taste. The accumulated experience of veteran craftsmen has always been an important reference for refining mechanized processes. Different schools of mooncakes have significantly different taste characteristics, which necessitates controlling the degree of gluten formation and the uniformity of material mixing during the mixing process to meet the technical requirements of subsequent stages such as filling, shaping, and baking.
[0003] A dough mixer for mooncake preparation, disclosed in authorization announcement number (CN221843640U), includes a mixing drum, a first drive motor, a support base, and a vertical support frame. The base is connected and fixed to the vertical support frame, which integrates a lifting mechanism. The lifting plate is mechanically assembled and linked to the lifting mechanism to form a structural support unit with adjustable height. In actual operation, the flour and auxiliary materials to be mixed are added to the mixing drum cavity according to the specified ratio, and the driving shaft performs the mixing operation within the mixing drum to complete the dough mixing process.
[0004] The structure disclosed in this patent has defects in practical applications, specifically as follows: when powdered raw materials such as flour are added to the mixing drum for mixing, the powder is easily splashed out from the opening of the mixing drum due to the airflow disturbance generated by the rotation of the mixing components and the centrifugal force. This phenomenon not only reduces the effective utilization rate of raw materials and causes substantial material waste, but also pollutes the surrounding production environment of the equipment due to the scattered powder, increasing cleaning and maintenance costs. Utility Model Content
[0005] The purpose of this utility model is to provide a dough mixer for mooncake preparation, which addresses the problem in the prior art that powdery raw materials such as flour easily splash and overflow from the opening of the mixing drum during the dough mixing process, resulting in material waste and pollution of the production environment. The present invention provides a solution to reduce the splashing and overflow of flour during the mixing process, thereby reducing material waste and improving the cleanliness of the production environment.
[0006] This utility model is achieved through the following technical solution:
[0007] A dough mixer for mooncake preparation includes: a frame; a top beam mounted on the top of the frame; a lifting assembly mounted on the frame; a mixing drum mounted on the lifting assembly, capable of reciprocating along the extension direction of the frame; a mixing component mounted on the top beam, capable of mixing within the mixing drum; and a sealing cover mounted on the top beam and fitted over the outside of the mixing component. When the mixing drum rises to the mixing position, the top edge of the mixing drum and the sealing cover form a closed mixing space to prevent material leakage during mixing.
[0008] Furthermore, in this utility model, the bottom end of the aforementioned top beam is equipped with a guide shaft, and the bottom end of the guide shaft is equipped with a stroke baffle, the outer diameter of which is larger than the outer diameter of the guide shaft; the top end of the sealing cover is fitted onto the outside of the guide shaft in a clearance fit manner, and the stroke baffle constitutes a stroke limiting structure for the downward sliding of the sealing cover.
[0009] Furthermore, in this utility model, the aforementioned sealing cover includes: a guide sleeve portion, which is a tubular structure and is fitted onto the outside of the guide shaft in a clearance fit manner; and a sealing enclosure portion, which is connected to the bottom end of the guide sleeve portion and extends away from the guide sleeve portion to form a flared cover structure.
[0010] Furthermore, in this utility model, a return spring is fitted on the outer side of the guide shaft; one end of the return spring abuts against the top crossbeam, and the other end of the return spring abuts against the guide sleeve.
[0011] Furthermore, in this utility model, the guide sleeve includes two symmetrically arranged half-sleeves, which can be assembled to form a complete tubular structure; the sealing enclosure includes two symmetrically arranged half-enclosures, which are respectively connected to the two half-sleeves to form two independent assembly units, which are detachably connected; wherein, when the two assembly units are disconnected, the two assembly units move away from each other in a direction perpendicular to the guide shaft axis, thereby releasing the fitting of the guide shaft; when the two assembly units are connected, the two assembly units move closer to each other in a direction perpendicular to the guide shaft axis, thereby fitting onto the outside of the guide shaft.
[0012] Furthermore, in this utility model, connecting ear plates are respectively installed on both sides of the above-mentioned half-body, and the connecting ear plates are provided with connecting holes; when the two half-body are assembled, the connecting ear plates on both sides of one half-body correspond to and fit with the connecting ear plates on both sides of the other half-body; the connecting holes of the two connecting ear plates on the same side are arranged coaxially, and the same connecting rod is inserted into the two connecting holes; end plates are respectively connected to both ends of the connecting rod, and compression springs are fitted on both sides of the connecting rod; one end of the compression spring abuts against the end plate, and the other end of the compression spring abuts against the connecting ear plate.
[0013] Furthermore, in this utility model, the lifting assembly includes: a first motor, which is installed inside the frame; a drive screw, one end of which is connected to the output end of the first motor, and the other end of which extends along the extension direction of the frame; a guide groove, which is formed on the frame and distributed along the extension direction of the drive screw; a slide body, which is assembled in the guide groove and fitted onto the outside of the drive screw, and the slide body and the drive screw are connected by threads; and a positioning clamp, which is installed on the slide body and is detachably connected to the stirring cylinder.
[0014] Furthermore, in this utility model, the above-mentioned stirring assembly includes: a second motor, which is installed inside the top crossbeam and the output end of the second motor extends downward in the vertical direction; a stirring main shaft, one end of which is connected to the output end of the second motor and the other end of which passes through the guide shaft in the vertical direction; and stirring blades, which are assembled on the stirring main shaft and can perform stirring operations inside the stirring cylinder.
[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0016] 1. This application utilizes a sealing cover and mixing drum docking design to create a closed mixing space when the mixing drum rises to the work position. This effectively prevents materials such as flour from splashing out during mixing due to airflow disturbance or centrifugal force. Compared to existing open mixing designs without a sealing structure, this structure avoids material waste, reduces powder pollution to the equipment and surrounding environment, and significantly improves the cleanliness of the production environment and the utilization rate of raw materials.
[0017] 2. In this application, the sliding fit of the sealing cover and the synergistic effect of the return spring achieve adaptive adjustment of the sealing structure. When the stirring cylinder rises, the sealing cover slides along the guide shaft and maintains a tight fit with the stirring cylinder through the thrust of the return spring; when the stirring vibrates, the return spring buffers the stress to avoid rigid damage. Attached Figure Description
[0018] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:
[0019] Figure 1 A schematic diagram of a dough mixer used for mooncake preparation;
[0020] Figure 2 A schematic diagram showing the splicing of two assembly units;
[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0022] Figure 4 This is a sectional view of the frame after it is connected to the top crossbeam.
[0023] The attached diagram shows the markings and corresponding component names:
[0024] 1-Frame, 2-Top crossbeam, 3-Mixing cylinder, 4-Positioning clamp, 5-Sliding body, 6-Guide groove, 7-Sealing cover, 8-Guide sleeve, 9-Sealing enclosure, 10-Guide shaft, 11-Reset spring, 12-Half enclosure, 13-Connecting ear plate, 14-Connecting hole, 15-Compression spring, 16-Connecting rod, 17-Second motor, 18-Mixing main shaft, 19-Mixing blade, 20-First motor, 21-Stroke baffle, 22-Half enclosure, 23-Assembly unit, 24-Drive screw. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.
[0026] Example
[0027] Please refer to Figures 1 to 4 This utility model provides a dough mixer for mooncake preparation. It includes a frame 1, a top beam 2, a lifting assembly, a mixing cylinder 3, and a sealing cover 7. The frame 1 is mounted on a work platform, and the top beam 2 is mounted on the top of the frame 1. The lifting assembly is assembled on the frame 1, and the mixing cylinder 3 is connected to the actuator of the lifting assembly. Driven by the lifting assembly, the mixing cylinder 3 can reciprocate up and down along the extension direction of the frame 1. The mixing assembly is mounted on the top beam 2, and its output end extends into the mixing cylinder 3 for mixing the materials inside. The sealing cover 7 is also mounted on the top beam 2 and is fitted over the mixing assembly to form a protective and sealing structure.
[0028] In actual operation, the lifting assembly is controlled to lower the mixing drum 3, removing it from the working range of the mixing assembly, so that the material to be mixed can be added into the mixing drum 3. After the material is added, the lifting assembly is controlled to raise the mixing drum 3 until the output end of the mixing assembly extends into the mixing drum 3. At this point, the lower edge of the sealing cover 7 aligns with the upper edge of the mixing drum 3, forming a closed mixing space, which effectively prevents material leakage during mixing. After the mixing operation is completed, the lifting assembly is controlled to lower the mixing drum 3, separating it from the mixing assembly, making it easy to remove the mixed material from the mixing drum 3.
[0029] Please refer to Figure 4 For example, a guide shaft 10 is installed at the bottom end of the top beam 2, and a travel baffle 21 is provided at the bottom end of the guide shaft 10. The outer diameter of the travel baffle 21 is larger than the outer diameter of the guide shaft 10. The top end of the sealing cover 7 is fitted onto the outside of the guide shaft 10 with a clearance fit, and the sealing cover 7 can slide along the extension direction of the guide shaft 10; the travel baffle 21 constitutes a limiting structure for the downward sliding of the sealing cover 7, preventing the sealing cover 7 from disengaging from the guide shaft 10.
[0030] The bottom end of the sealing cover 7 is used to cooperate with the stirring cylinder 3 to form a sealing effect. The sealing cover 7 can fall naturally to a low position under gravity. The sealing cover 7 is kept in its initial position by the limit of the top end and the stroke baffle 21. When the stirring cylinder 3 is driven to rise by the lifting component, the top edge of the stirring cylinder 3 abuts against the bottom edge of the sealing cover 7, pushing the sealing cover 7 to move upward along the guide shaft 10, thereby enclosing and forming a closed space to achieve sealing protection. The sealing cover 7 has an upward adjustment margin, which can buffer the abutment force during the rising process of the stirring cylinder 3 and avoid deformation and damage caused by rigid compression between the sealing cover 7 and the stirring cylinder 3 due to excessive stroke.
[0031] Please refer to Figure 1 and Figure 2 Specifically, the guide sleeve 8 is a tubular structure, fitted onto the outside of the guide shaft 10 with a clearance fit, and can slide along the extension direction of the guide shaft 10; the stroke baffle 21 at the bottom end of the guide shaft 10 limits the downward movement of the guide sleeve 8, preventing the guide sleeve 8 from detaching from the guide shaft 10. The sealing enclosure 9 is integrally connected to the bottom end of the guide sleeve 8, and extends away from the guide sleeve 8 to form a flared cover structure. The flared cover structure can be fitted and connected to the top edge of the mixing cylinder 3, thereby forming the sealing fit required for the mixing operation.
[0032] In some embodiments of this application, a return spring 11 is fitted on the outer side of the guide shaft 10. One end of the return spring 11 rigidly abuts against the top crossbeam 2, and the other end of the return spring 11 elastically abuts against the guide sleeve 8. The abutting end of the guide sleeve 8 is fitted with a boss along its edge that is adapted to the return spring 11.
[0033] Under the action of the return spring 11, the guide sleeve 8 can drive the sealing enclosure 9 to continuously and tightly fit against the mixing cylinder 3, effectively eliminating the gap between the sealing enclosure 9 and the mixing cylinder 3. On the other hand, the vibration load generated during the mixing operation can be absorbed and buffered by the elastic deformation of the return spring 11, ensuring that the sealing enclosure 9 can still maintain a reliable fit with the mixing cylinder 3 under vibration conditions, and weakening the stress concentration caused by rigid contact, thus avoiding structural damage to the components due to vibration impact.
[0034] Please refer to Figure 2In some embodiments of this application, the guide sleeve 8 is composed of two symmetrically arranged half-sleeves 22, which can be assembled to form a complete tubular structure; the sealing enclosure 9 is provided with two symmetrical half-enclosures 12, which are respectively connected to the two half-sleeves 22 to form two independent splicing units 23, which are detachably connected.
[0035] Specifically, when the two assembly units 23 separate relative to each other, the two half-body units 22 unfold synchronously. The distance between the two half-body units 22 can be greater than the outer diameter of the stroke baffle 21, so that the entire sealing cover 7 can be detached from the guide shaft 10. Given that material residue easily adheres to the inner wall of the sealing cover 7 during mixing operations, the above structural design facilitates thorough cleaning of the sealing cover 7. After cleaning, the two assembly units 23 are separated again to the set distance, allowing the two half-body units 22 to be inserted into the guide shaft 10 through the outside of the stroke baffle 21. Then, the two half-body units 22 are brought closer together and assembled, and re-mounted onto the guide shaft 10 to complete the assembly.
[0036] Please refer to Figure 2 and Figure 3 In some embodiments of this application, connecting ear plates 13 are fixedly mounted on both sides of the half-body 22, and connecting ear plates 13 are provided with connecting holes 14. When the two half-body 22 are assembled, the connecting ear plates 13 on both sides of one half-body 22 correspond to and fit with the connecting ear plates 13 on both sides of the other half-body 22, and the connecting holes 14 of the two connecting ear plates 13 on the same side are arranged coaxially, and the same connecting rod 16 passes through the two connecting holes 14. The two ends of the connecting rod 16 are fixedly connected to end plates, and compression springs 15 are fitted on both sides of the connecting rod 16. One end of the compression spring 15 abuts against the end plate, and the other end abuts against the connecting ear plate 13.
[0037] When the two half-body pieces 22 are driven to separate by external force, the corresponding connecting ear plates 13 on both sides are pulled open simultaneously, causing the compression springs 15 on both sides of the connecting rod 16 to undergo compression deformation. When the distance between the two half-body pieces 22 is greater than the outer diameter of the stroke baffle 21, the sealing cover 7 can be completely detached from the guide shaft 10. After the cleaning operation is completed, external force is first applied to keep the two half-body pieces 22 in a separated state. After they pass the outside of the stroke baffle 21 and are fitted into the guide shaft 10, the external force on the two half-body pieces 22 is removed. Under the elastic reset action of the compression springs 15, the two half-body pieces 22 move towards each other and are then tightly joined and fitted onto the guide shaft 10.
[0038] In some embodiments of this application, the lifting assembly comprises a first motor 20, a drive screw 24, a guide groove 6, a slide body 5, and a positioning clamp 4. The first motor 20 is installed inside the frame 1. One end of the drive screw 24 is connected to the output end of the first motor 20, and the other end of the drive screw 24 extends in the same direction as the frame 1 and is rotatably mounted on the fixed top wall of the frame 1. The guide groove 6 is formed in the frame 1 and is arranged along the axial direction of the drive screw 24. The slide body 5 is embedded in the guide groove 6, and the inner side of the slide body 5 is connected to the drive screw 24 by a threaded connection, while the outer side of the slide body 5 is in sliding engagement with the guide groove 6. The positioning clamp 4 is installed on the outer side of the slide body 5, and the positioning clamp 4 is detachably connected to the stirring cylinder 3.
[0039] Please refer to Figure 4 During operation, the first motor 20 is controlled to run, driving the lead screw 24 to rotate synchronously with the motor output end. This causes the slide body 5 to move up and down along the guide groove 6, thereby driving the positioning clamp 4 and the mixing cylinder 3 it supports to move up and down synchronously, realizing the separation or docking of the mixing cylinder 3 and the mixing components, and meeting the needs of material addition and removal.
[0040] Please refer to Figure 4 In some embodiments of this application, the stirring assembly includes a second motor 17, a stirring shaft 18, and stirring blades 19. The second motor 17 is installed inside the top crossbeam 2, and its output end extends vertically downwards. One end of the stirring shaft 18 is connected to the output end of the second motor 17, and the other end extends vertically through the guide shaft 10 and into the inner side of the stirring cylinder 3. The stirring blades 19 are installed on the shaft section of the stirring shaft 18 located inside the stirring cylinder 3, and the stirring blades 19 are capable of stirring the material inside the stirring cylinder 3.
[0041] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A dough mixer for moon cake preparation, characterized in that, include: Rack (1); Top crossbeam (2), which is mounted on the top of the frame (1); A lifting assembly, which is mounted on the frame (1); A stirring cylinder (3) is mounted on the lifting assembly and can reciprocate along the extension direction of the frame (1). A stirring assembly is installed on the top crossbeam (2) and is capable of stirring the inside of the stirring cylinder (3). A sealing cover (7) is installed on the top crossbeam (2) and is fitted onto the outside of the stirring assembly; When the stirring cylinder (3) rises to the stirring position, the top edge of the stirring cylinder (3) and the sealing cover (7) form a closed stirring space to prevent material leakage during the stirring process.
2. The dough-preparing machine for moon cakes according to claim 1, wherein, The bottom end of the top crossbeam (2) is equipped with a guide shaft (10), and the bottom end of the guide shaft (10) is equipped with a stroke baffle (21), the outer diameter of the stroke baffle (21) being larger than the outer diameter of the guide shaft (10); The top of the sealing cover (7) is fitted onto the outside of the guide shaft (10) with a clearance fit, and the stroke baffle (21) constitutes a stroke limiting structure for the downward sliding of the sealing cover (7).
3. The moon cake making dough mixer according to claim 2, wherein, The sealing cover (7) includes: Guide sleeve (8), the guide sleeve (8) is a tubular structure, and the guide sleeve (8) is fitted onto the outside of the guide shaft (10) in a clearance fit manner; A sealing enclosure (9) is connected to the bottom end of the guide sleeve (8), and the sealing enclosure (9) extends away from the guide sleeve (8) to form a flared cover structure.
4. The moon cake making dough mixer according to claim 3, wherein, A return spring (11) is fitted on the outer side of the guide shaft (10); One end of the return spring (11) abuts against the top crossbeam (2), and the other end of the return spring (11) abuts against the guide sleeve (8).
5. The moon cake making and dough mixer according to claim 3 or 4, characterized in that, The guide sleeve (8) includes two symmetrically arranged half-sleeves (22), which can be joined together to form a complete tubular structure; The sealing enclosure (9) includes two symmetrically arranged semi-enclosures (12), which are respectively connected to the two semi-enclosures (22) to form two independent splicing units (23), which are detachably connected. When the two splicing units (23) are disconnected, the two splicing units (23) move away from each other in a direction perpendicular to the axis of the guide shaft (10), thereby releasing the fitting of the guide shaft (10); When the two splicing units (23) are connected, the two splicing units (23) are relatively close to each other in a direction perpendicular to the axis of the guide shaft (10), thereby fitting onto the outside of the guide shaft (10).
6. The moon cake making dough mixer according to claim 5, wherein, Connecting ear plates (13) are respectively installed on both sides of the half body (22), and the connecting ear plates (13) are provided with connecting holes (14); When the two half-body (22) are assembled, the connecting ear plates (13) on both sides of one half-body (22) are respectively attached to the connecting ear plates (13) on both sides of the other half-body (22); The connecting holes (14) of the two connecting ear plates (13) on the same side are arranged coaxially, and the same connecting rod (16) is inserted into the two connecting holes (14); The two ends of the connecting rod (16) are respectively connected to end plates, and compression springs (15) are fitted on both sides of the connecting rod (16). One end of the compression spring (15) abuts against the end plate, and the other end of the compression spring (15) abuts against the connecting ear plate (13).
7. The moon cake making and dough mixer according to any one of claims 1 to 4, characterized in that, The lifting assembly includes: A first motor (20) is installed inside the frame (1); A drive screw (24) is provided, one end of which is connected to the output end of the first motor (20), and the other end of which extends along the extension direction of the frame (1). Guide slot (6), the guide slot (6) is formed on the frame (1), and the guide slot (6) is distributed along the extension direction of the drive screw (24); Sliding body (5), the sliding body (5) is assembled in the guide groove (6), the sliding body (5) is sleeved on the outside of the drive screw (24), and the sliding body (5) and the drive screw (24) are connected by threads; Positioning clamp (4) is mounted on the slide body (5) and is detachably connected to the stirring cylinder (3).
8. The moon cake making and dough mixer according to any one of claims 2 to 4, characterized in that, The stirring assembly includes: The second motor (17) is installed inside the top crossbeam (2), and the output end of the second motor (17) extends downward in the vertical direction; A stirring spindle (18) is provided, one end of which is connected to the output end of the second motor (17), and the other end of which passes through the guide shaft (10) in a vertical direction. The stirring blade (19) is mounted on the stirring main shaft (18) and can perform stirring operations inside the stirring cylinder (3).