A pressing device for koji-making surplus
By using the combined use of the lower and upper pressing molds, rectangular koji blocks are formed using the turtle-back structure and outer ring, solving the problem of low efficiency in manually kneading leftover koji materials into clumps. This achieves efficient and high-quality koji block production, which is suitable for the microbial fermentation needs of the brewing industry.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KWEICHOW MOUTAI COMPANY
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-21
Smart Images
Figure CN224530885U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of koji block production, and in particular to a pressing device for koji production waste. Background Technology
[0002] In the baijiu (Chinese liquor) brewing industry, koji making is a crucial step, as its quality directly impacts the quality of the baijiu. Baijiu koji making typically employs traditional natural inoculation and solid-state fermentation processes, relying on the growth and reproduction of microorganisms in nature on the koji blocks to form a rich enzyme system and flavor compounds, which are key to the subsequent aroma development of baijiu during fermentation.
[0003] During the koji-making process, a shift typically produces a surplus of koji-making materials (e.g., 75 kg) daily. This surplus material is generated during the pressing of the koji blocks, and its composition is essentially the same as that of the koji materials normally used for fermentation, including wheat, peas, and other raw materials, as well as attached microbial communities. However, the current method of processing this surplus material involves hand-kneading it into clumps, which has several drawbacks. This method is not only time-consuming and labor-intensive, requiring employees to expend considerable physical strength and time, but also produces poor processing results, with the resulting clumps being uneven in size and density, which is detrimental to potential subsequent reuse or processing. Utility Model Content
[0004] Based on this, a pressing device for koji-making waste is provided to solve the problem of low efficiency and poor koji quality caused by the existing method of kneading koji-making waste into clumps by hand.
[0005] On the one hand, this utility model provides a pressing device for koji-making waste materials, the pressing device comprising:
[0006] The lower pressing die has a first opening at one end, which serves as the material inlet and outlet, and a connecting part at the other end.
[0007] The upper pressing die is movably connected to the lower pressing die via a connecting part. The upper pressing die includes a pressing head. The side of the pressing head facing the material inlet and outlet has a turtle-back shaped structure that is high in the middle and low around the edges. The direction of the turtle-back shaped structure arches away from the material inlet and outlet.
[0008] Based on the above technical solution, the present invention can be further improved as follows.
[0009] In one of the implementation methods,
[0010] The lower pressing die also includes:
[0011] The outer ring, which surrounds the inlet and outlet sections, is used to conform to the circumferential contour during the pressing of the curved material.
[0012] In one of the implementation methods,
[0013] Both the inner contour of the outer ring and the outer perimeter of the pressure head contour are rectangular, and the orthographic projection area of the pressure head falls within the inner contour of the outer ring.
[0014] In one implementation, the lower pressing die also includes:
[0015] The limiting part is connected to the side of the outer ring part away from the inlet and outlet parts. It is located above the pressing head and has a second opening in the middle. One end of the upper pressing mold extends through the second opening, and the other end of the upper pressing mold is the pressing head. The limiting part is used to prevent the pressing head from separating from the lower pressing mold when it moves towards the second opening.
[0016] In one implementation, the limiting part includes at least three inclined sides, all of which form a contracting cavity, into which the pressure head can be completely inserted.
[0017] In one of the implementation methods,
[0018] The lower pressing die also includes:
[0019] The first support rod is connected to the second opening;
[0020] The upper pressing mold also includes:
[0021] The second support rod is connected to the pressure head;
[0022] The first support rod is movably sleeved outside the second support rod; the first support rod and the limiting part constitute a connecting part.
[0023] In one implementation, the first support rod and the second support rod are hollow square tube structures, and the length of the first support rod is less than the length of the second support rod.
[0024] In one of the implementation methods,
[0025] The upper pressing mold also includes:
[0026] The handle is connected to the end of the second support rod facing away from the pressure head.
[0027] In one implementation, the handle is a hollow cylindrical tube, and the axial center of the handle is welded to the second support rod.
[0028] In one implementation, the second support rod is welded to the center of the pressure head.
[0029] The beneficial effects of this utility model are as follows: Curved blocks are produced by using a lower pressing mold and an upper pressing mold in conjunction. The lower pressing mold has an inlet / outlet section for the material to enter or leave the mold. By moving the connected lower and upper pressing molds, the material is pressed into a curved block by the movement of the upper pressing mold. During the pressing of the curved block, the material enters the pressing device through the inlet / outlet section. The pressing head of the upper pressing mold, which is movable relative to the lower pressing mold, presses the material and forms a curved block. After removing the pressing head, the connected lower and upper pressing molds can be removed simultaneously, allowing the curved block to detach from the pressing device along the inlet / outlet section, thus completing the pressing of the curved block. This method, by setting a cavity with a corresponding turtle-back shaped structure on the pressing head, results in a curved block with one side having an outwardly convex turtle-back shaped structure, satisfying the contour requirements of the curved block. This structure can obtain a compact curved block by pressing the pressing head in one direction, resulting in high production efficiency and good quality curved blocks. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the structure of a pressing device for koji-making waste in one embodiment;
[0031] Figure 2 This is a schematic diagram of the upper pressing mold in one embodiment;
[0032] Figure 3 This is a schematic diagram of the lower pressing mold in one embodiment.
[0033] In the attached diagram, the components represented by each number are as follows:
[0034] 10. Lower pressing die; 11. Feeding / discharging section; 12. Connecting section; 13. Outer ring section; 14. Limiting section; 15. First support rod;
[0035] 20. Upper pressing mold; 21. Press head; 22. Second support rod; 23. Handle. Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit the scope of this application. It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show components related to this utility model and are not drawn according to the actual number, shape, and size of the components in implementation. In actual implementation, the shape, quantity, and proportion of each component can be arbitrarily changed, and the component layout may also be more complex.
[0037] The structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0038] Every day, there are leftover materials from koji production. Current technology processes these materials by hand-kneading them into balls, but this method is time-consuming, labor-intensive, and produces poor results. To improve the efficiency and quality of koji production from these leftover materials, the following solution is proposed:
[0039] A pressing device for koji-making waste materials, see [link to document]. Figure 1 The pressing device includes a lower pressing die 10 and an upper pressing die 20; one end of the lower pressing die 10 is provided with a first opening and serves as a material inlet / outlet section 11, see [link to relevant documentation]. Figure 3 The other end is provided with a connecting part 12; the upper pressing mold 20 is movably connected to the lower pressing mold 10 through the connecting part 12, and the upper pressing mold 20 includes a pressing head 21, see Figure 2 The side of the pressure head 21 facing the feed / discharge section 11 has a turtle-back shaped structure that is high in the middle and low around the edges, and the direction of the turtle-back shaped structure arches away from the feed / discharge section 11.
[0040] In this scheme, a lower pressing mold 10 and an upper pressing mold 20 are used together to produce curved blocks. The lower pressing mold 10 has an inlet / outlet section 11 for the curved material to enter or leave the mold. By moving the lower pressing mold 10 and the upper pressing mold 20, the curved material is pressed into a curved block by the movement of the upper pressing mold 20. When pressing the curved block, the curved material enters the pressing device through the inlet / outlet section 11 and is pressed by the pressing head 21 of the upper pressing mold 20, which is movable relative to the lower pressing mold 10. After the material is shaped into blocks, the pressing head 21 is removed, which simultaneously removes the connected lower pressing mold 10 and upper pressing mold 20, allowing the blocks to detach from the pressing device along the feed / discharge section 11, thus completing the pressing of the blocks. This method uses a cavity with a corresponding turtle-back shaped structure on the pressing head 21 to create a convex turtle-back shaped structure on one side of the resulting blocks, satisfying the block's contour requirements. This structure can produce compact blocks by pressing the pressing head 21 in one direction, resulting in high production efficiency and good block quality.
[0041] In the embodiments, see Figure 2For the turtle-back shaped structure of the pressure head 21, a corresponding turtle-back shaped curved block will be produced. The turtle-back shaped structure is defined as a structure that is high in the middle and low around the edges. This structure closely fits the needs of microbial fermentation and the characteristics of the production process. Specifically: the high arched structure in the middle increases the thickness of the central area of the curved block, improves the internal porosity, and increases the oxygen penetration depth, preventing the growth of anaerobic bacteria due to lack of oxygen in the central area; the low and gentle slope around the edges increases the contact area with the air, accelerates the evaporation of moisture and gas exchange at the edges, and prevents the curved blocks from sticking together; when the curved blocks are stacked, the arched surface reduces the contact area between the curved blocks, making them less likely to stick and break when flipping; the flat bottom ensures the stability of the stack, and the arched top forms a natural ventilation channel, improving the ventilation efficiency of the fermentation room.
[0042] In the embodiments, see Figure 1 The material enters and exits the lower pressing mold 10 along the feed section 11. The pressing head 21 moves to press the material, and makes the outer contour of the side of the material in contact with the pressing head 21 convex in the shape of a turtle back.
[0043] In some embodiments, see Figure 3 The lower pressing die 10 also includes an outer ring portion 13, which surrounds the circumference of the feeding and discharging portion 11 and is used to conform to and restrict the circumferential contour during the pressing of the curved material. In this way, by providing the outer ring portion 13, the curved material is accommodated and the circumferential contour of the curved material is restricted during the pressing process, so as to ensure the regularity of the shape of the obtained curved block.
[0044] In some embodiments, see Figure 2 and Figure 3 The inner contour of the outer ring 13 and the outer periphery of the pressure head 21 are both rectangular, and the projected area of the pressure head 21 falls within the inner contour of the outer ring 13. Thus, with both the inner contour of the outer ring 13 and the outer periphery of the pressure head 21 being rectangular, the resulting curved block also has a rectangular outer periphery. The advantages of this rectangular curved block design are: the regular shape of the rectangle allows for close arrangement with almost no gaps, maximizing space utilization during stacking, storage, and transportation; it facilitates warehousing and transportation, and is conducive to mechanized operations; the planar structure of the rectangle ensures a tighter fit with the contact surface, resulting in a stable center of gravity during stacking, preventing tilting or collapse; compared to circular curved blocks, rectangular blocks have stronger resistance to deformation during multi-layer stacking, making them particularly suitable for scenarios requiring long-term storage or heavy pressure; in industries such as brewing, the surface area to volume ratio of rectangular curved blocks is more reasonable, ensuring sufficient contact area between microorganisms and air to promote fermentation, while reducing excessive moisture loss and maintaining a stable fermentation environment.
[0045] In some embodiments, see Figure 3The lower pressing die 10 also includes a limiting part 14, which is connected to the side of the outer ring part 13 away from the inlet / outlet part 11. The limiting part 14 is located above the pressing head 21 and has a second opening in the middle. One end of the upper pressing die 20 extends through the second opening, and the other end of the upper pressing die 20 is the pressing head 21. The limiting part 14 is used to prevent the pressing head 21 from separating from the lower pressing die 10 when it moves in the direction of the second opening. In this way, the limiting part 14 restricts the movement of the pressing head 21 in the direction of the second opening, preventing the pressing head 21 from separating from the lower pressing die 10 when it moves in the direction of the second opening. This allows the lower pressing die 10 and the upper pressing die 20 to maintain a relatively movable connection, and the lower pressing die 10 can be moved together by moving the upper pressing die 20, so that after the curved block is pressed, the lower pressing die 10 and the upper pressing die 20 can be removed at once.
[0046] In some embodiments, see Figure 3 The limiting part 14 includes at least three inclined sides, all of which form a contracting cavity, into which the pressing head 21 can be completely placed. In this way, the contracting cavity of the limiting part 14 connects the outer ring part 13 and the second opening, and serves to accommodate the pressing head 21, thereby improving the space utilization of the lower pressing mold 10.
[0047] In one embodiment, the limiting portion 14 includes four inclined sides.
[0048] In some embodiments, see Figure 1 The lower pressing die 10 also includes a first support rod 15, which is connected to the second opening; the upper pressing die 20 also includes a second support rod 22, which is connected to the pressing head 21; wherein, the first support rod 15 is movably sleeved on the second support rod 22; see also Figure 3 The first support rod 15 and the limiting part 14 constitute the connecting part 12. In this way, by connecting the first support rod 15 and the second support rod 22, the second support rod 22 is guided by the first support rod 15 when it moves, so as to avoid skewed pressing when pressing the curved block, which helps to improve the quality of the pressed curved block.
[0049] In some embodiments, see Figure 1 The first support rod 15 and the second support rod 22 are hollow square tube structures, with the length of the first support rod 15 being less than the length of the second support rod 22. This design, using hollow square tubes, ensures sufficient structural strength for both the first and second support rods. Limiting the length of the first support rod 15 to less than the length of the second support rod 22 allows the second support rod 22 to move along the length of the first support rod 15, satisfying the required movement distance of the upper pressing mold 20 to move the pressing head 21 and press the curved block.
[0050] In some embodiments, see Figure 1 The upper pressing mold 20 also includes a handle portion 23, which is connected to the end of the second support rod 22 facing away from the pressing head 21. In this way, by providing the handle portion 23, the lower pressing mold 10 and the upper pressing mold 20 can be moved; since the handle portion 23, the second support rod 22 and the pressing head 21 are connected in sequence, pressure can be applied to the material that abuts against the pressing head 21 through the handle portion 23 to make curved blocks.
[0051] In some embodiments, see Figure 1 The handle portion 23 is a hollow cylindrical structure, and its axial center is welded to the second support rod 22. This hollow cylindrical structure of the handle portion 23 facilitates gripping and pressure application by the operator.
[0052] In the embodiments, see Figure 2 The axial direction of the handle portion 23 is perpendicular to the length direction of the second support rod 22.
[0053] In some embodiments, see Figure 2 The second support rod 22 is welded to the middle of the pressing head 21. This welded connection structure has good stability and ensures that the connection between the second support rod 22 and the pressing head 21 remains stable during the pressing of the material, which is beneficial for the pressing device to continuously press the material to produce shaped blocks.
[0054] In the embodiments, see Figure 2 and Figure 3 The first support rod 15 is welded to the limiting part 14, and the second support rod 22 is welded to the pressure head 21 and the handle part 23 respectively. The first support rod 15 and the second support rod 22 are hollow square tube structures. For hollow square tube structures, when the square tubes are welded together, they have higher strength and stability at the joints compared to round tubes.
[0055] When using, please refer to Figure 1 The lower pressing mold 10 and the upper pressing mold 20 are movably connected. The first support rod 15 surrounds the second support rod 22. The two ends of the second support rod 22 are respectively connected to the handle part 23 and the pressing head 21. The handle part 23 is located outside the lower pressing mold 10 and serves as the force-applying structure for the movement of the upper pressing mold 20 and the pressing of the material. The pressing head 21 is located inside the lower pressing mold 10 and is used to press along the top of the material. The pressing head 21 is connected to the second support rod 22 and moves along the length direction of the second support rod 22 under the drive of the second support rod 22. The limiting part 14 and the connecting part 12 are located between the pressing head 21 and the handle part 23 to limit the distance that the upper pressing mold 20 moves relative to the lower pressing mold 10 and to prevent the upper pressing mold 20 from detaching from the lower pressing mold 10.
[0056] In one embodiment, see Figure 1 and Figure 2 When pressing the koji material: Since the koji material enters the entire pressing device along the feed / discharge section 11, the actual operation is to move the pressing device above the corresponding koji material, press down the feed / discharge section 11 to allow the koji material to enter the pressing device; then press down the handle section 23 to make the press head 21 press the koji material and make the corresponding koji block; then move the entire pressing device away, that is, the koji block leaves the pressing device from the feed / discharge section 11, thereby completing the pressing of the koji block.
[0057] In this embodiment, the ground surface for placing and pressing the koji blocks is preferably a flat surface, so that the bottom of the koji blocks is flat enough to meet the shape requirements of subsequent stacking and fermentation.
[0058] In the description of this utility model, it should be understood that the terms "center", "length", "width", "upper", "lower", "top", "bottom", "inner", "outer", "axial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.
[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model.
[0060] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A pressing device for koji-making waste materials, characterized in that, The pressing device includes: The lower pressing die (10) has a first opening at one end, which serves as the material inlet / outlet (11), and a connecting part (12) at the other end; The upper pressing mold (20) is movably connected to the lower pressing mold (10) via the connecting part (12). The upper pressing mold (20) includes a pressing head (21). The pressing head (21) has a turtle-back shaped structure with a high center and low sides on the side facing the feeding and discharging part (11). The direction of the turtle-back shaped structure is away from the feeding and discharging part (11).
2. The pressing device for koji-making waste material according to claim 1, characterized in that, The lower pressing die (10) also includes: The outer ring (13) surrounds the circumference of the feed / discharge section (11) and is used to conform to the circumferential contour when the material is pressed.
3. The pressing device for koji-making waste material according to claim 2, characterized in that, The inner contour of the outer ring (13) and the outer periphery of the contour of the pressing head (21) are both rectangular, and the orthographic projection area of the pressing head (21) falls within the inner contour of the outer ring (13).
4. The pressing device for koji-making waste material according to claim 2, characterized in that, The lower pressing die (10) also includes: The limiting part (14) is connected to the outer ring part (13) on the side away from the feed / discharge part (11), and is disposed above the pressing head (21) and has a second opening in the middle. One end of the upper pressing mold (20) extends through the second opening, and the other end of the upper pressing mold (20) is the pressing head (21). The limiting part (14) is used to prevent the pressing head (21) from separating from the lower pressing mold (10) when it moves toward the second opening.
5. The pressing device for koji-making waste material according to claim 4, characterized in that, The limiting part (14) includes at least three inclined sides, all of which form a contracted cavity, and the pressing head (21) can be completely placed into the contracted cavity.
6. The pressing device for koji-making waste material according to claim 4, characterized in that, The lower pressing die (10) also includes: The first support rod (15) is connected to the second opening; The upper pressing mold (20) also includes: The second support rod (22) is connected to the pressure head (21); The first support rod (15) is movably sleeved on the outside of the second support rod (22); the first support rod (15) and the limiting part (14) constitute the connecting part (12).
7. The pressing device for koji-making waste material according to claim 6, characterized in that, The first support rod (15) and the second support rod (22) are hollow square tube structures, and the length of the first support rod (15) is less than the length of the second support rod (22).
8. The pressing device for koji-making waste material according to claim 6, characterized in that, The upper pressing mold (20) also includes: The handle (23) is connected to one end of the second support rod (22) facing away from the pressure head (21).
9. The pressing device for koji-making waste material according to claim 8, characterized in that, The handle part (23) is a hollow round tube structure, and the middle part of the handle part (23) is welded to the second support rod (22) in the axial direction.
10. The pressing device for koji-making waste material according to claim 6, characterized in that, The second support rod (22) is welded to the middle of the pressure head (21).