A rotary press for bending
Patent Information
- Application Number
- CN202522423487.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-14
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-14
AI Technical Summary
In existing koji-making machines, the koji material tends to stick to the die head during feeding, resulting in low production efficiency, material waste, and abnormal equipment operation.
The rotary press features a turntable design with a slot at the bottom of the mold assembly. The mold assembly engages and disengages with the ejector mechanism via the slot. The mold cavity extends downwards and gradually narrows to form a curved shape. Combined with the ejector mechanism driven by a servo electric cylinder, this ensures rapid engagement and smooth disengagement of the mold.
It improves the production efficiency of the pressing process, avoids damage to the koji blocks after molding, ensures regular molding and controllable output, reduces koji waste, and enhances the operational stability of the equipment.
Smart Images

Figure CN224928601U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of koji press technology, and in particular to a rotary koji press turntable. Background Technology
[0002] In the automated koji-making process at a distillery, a koji press is used to compress the koji material into koji blocks of the required specific size. A koji-making machine is a highly automated mechanical device that compresses pulverized koji raw materials into koji blocks. Its working principle involves crushing the koji material, mixing it with water, and then feeding it into a koji box mold. The koji material is then pressed using mechanical stamping. After multiple pressing operations, koji blocks of suitable density are finally produced. The koji-making process involves steps such as feeding, pressing, and unpacking.
[0003] In existing koji-making machines, the koji material tends to stick to the die head during feeding, requiring frequent cleaning of the die head. This not only affects production efficiency but also causes the koji material to scatter throughout the koji press, resulting in material waste and affecting the normal operation of the equipment. Utility Model Content
[0004] The purpose of this invention is to provide a rotary press turntable, which mainly improves the problems of material adhesion and pressing quality defects during the pressing process.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, this utility model provides a turntable for a rotary pressing machine, comprising a turntable body, a central bearing disposed at the center of the turntable body, and a plurality of mold box assemblies arranged in an array on the turntable body with the axis of the central bearing as the center. The turntable body has a plurality of cavities, and the mold box assemblies are movably disposed within the cavities. The mold box assemblies are used to hold koji material and to form koji blocks under mechanical pressure. Each mold box assembly includes a mold box, which has a downwardly extending and gradually narrowing cavity so that the koji material forms a downward koji bundle when forming koji blocks. The bottom of the mold box assembly is also provided with a continuous slot, which is used to engage the mold box assembly with an ejector mechanism when the turntable body rotates to the pressing position, and to separate from the ejector mechanism when the turntable body continues to rotate.
[0006] Preferably, the mold assembly includes two side-by-side molds, each of which has a slot formed at its bottom.
[0007] Preferably, the slot is a T-shaped cavity and has an arc shape concentric with the central bearing.
[0008] Preferably, it also includes an ejector mechanism, which is mounted on the frame of the pressing machine and ejects the compressed koji blocks from the mold box.
[0009] Preferably, the ejection mechanism includes a servo electric cylinder, which is fixedly connected to the ejection mechanism mounting plate. The free end of the servo electric cylinder is connected to a push plate, and a push crankshaft is connected to the push plate. The upper part of the push crankshaft is equipped with a locking rod that is adapted to the locking slot.
[0010] Preferably, the cavity taper of the mold is 25°-45°.
[0011] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a rotary press for a koji press, which extends the cavity of the mold box downward and gradually narrows to form a downward koji pack structure. This ensures that the koji blocks are formed in a regular manner and can adapt to the structural requirements of the koji blocks in the subsequent fermentation process. At the same time, the tapered design reduces demolding resistance and avoids damage to the koji blocks after they are formed.
[0012] By setting a slot at the bottom of the mold box, and through the arc design and T-shaped structure of the slot, it is ensured that the turntable can quickly engage and smoothly separate from the ejection mechanism when rotating, and the process connection is smooth. At the same time, the ejection mechanism can effectively prevent the mold box from flipping when ejecting the mold box, thus achieving controllable material output. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the turntable in this utility model.
[0014] Figure 2 This is a schematic diagram of the main structure of the turntable in this utility model.
[0015] Figure 3 This is a schematic diagram showing the cooperation state between the turntable body and the ejection structure in this utility model.
[0016] Figure 4 This is a three-dimensional structural diagram of the mold box in this utility model.
[0017] Figure 5 This is another three-dimensional structural diagram of the mold box in this utility model.
[0018] In the above figure: 10, turntable body; 11, center bearing; 20, mold box assembly; 21, mold box; 22, slot; 30, ejection mechanism; 31, servo electric cylinder; 32, push crank mechanism mounting plate; 33, push plate; 34, push crankshaft. Detailed Implementation
[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable for those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.
[0020] As a preferred embodiment of this utility model, such as Figures 1-5 As shown, this embodiment provides a rotary press turntable, including a turntable body 10. A central bearing 11 is provided in the center of the turntable body 10. Multiple mold box assemblies 20 are arrayed on the turntable body 10 with the axis of the central bearing 11 as the center. The turntable body 10 has multiple cavities. The mold box assemblies 20 are movably disposed in the cavities. The mold box assemblies 20 are used to hold the koji material and form koji blocks under mechanical pressure. The mold box assembly 20 includes a mold box 21. The mold box 21 is constructed with a downwardly extending and gradually narrowing cavity so that the koji material forms a downward koji bundle when forming koji blocks. The bottom of the mold box assembly 20 is also provided with a continuous slot 22. The slot 22 is used to engage the mold box assembly 20 with the ejector mechanism 40 through the slot 22 when the turntable body 10 rotates to the pressing position, and to separate from the ejector mechanism 40 when the turntable body 10 continues to rotate.
[0021] In the above embodiments, the cavity of the mold box 21 extends downward and gradually narrows, forming a downward curved structure. This ensures that the molded blocks are formed neatly and can adapt to the structural requirements of the molded blocks during subsequent fermentation. At the same time, the tapered design reduces demolding resistance and prevents the molded blocks from breaking after forming. The design of two parallel mold boxes allows for the forming of two molded blocks at a time, directly increasing the output per unit time. The arc design and T-shaped structure of the slot 22 ensure that the turntable quickly engages and smoothly separates from the ejection mechanism when rotating, with no jamming in the process connection. Meanwhile, the ejection mechanism 30 can effectively prevent the mold box from flipping when ejecting it, ensuring controllable material output.
[0022] like Figure 3 As shown, the mold assembly 20 includes two side-by-side molds 21, and each mold 21 has a slot 22 formed at its bottom.
[0023] In the above embodiment, the slot 22 is a T-shaped cavity with an arc shape concentric with the central bearing 11. The T-shaped structure forms upper and lower limits, and the locking rod of the ejector mechanism 30 cannot disengage after being inserted, ensuring that when the turntable rotates to the pressing position, the slot and the ejector mechanism are firmly engaged without loosening or shifting. During the ejection of the mold box after pressing, unexpected tipping can be avoided.
[0024] In some preferred embodiments and, such as Figure 2 and Figure 3 As shown, it also includes an ejection mechanism 30, which is mounted on the frame of the pressing machine and ejects the compressed koji blocks from the mold box 21. The ejection mechanism 30 includes a servo electric cylinder 31, which is fixedly connected to the ejection mechanism mounting plate 32. The free end of the servo electric cylinder 31 is connected to a push plate 33, and a push crankshaft 34 is connected to the push plate 33. The upper part of the push crankshaft 34 is equipped with a locking rod that matches the locking groove 22.
[0025] Traditional koji pressing machines have a recessed upper mold that easily traps material, making cleaning difficult. If not cleaned for a long time, the koji material adheres to the upper mold and then to the surface of the formed koji blocks, affecting the size and density of the finished blocks. This can lead to cracks, uneven moisture content, irregular sizes, inconsistent weights, and ultimately, poor fermentation quality. The above embodiment uses a recessed cavity structure in the lower mold box. During pressing, the koji blocks are positioned with the package facing downwards, ensuring the surface of the upper mold in contact with the koji blocks is flat, facilitating mold cleaning. Furthermore, the fewer upper and lower molds required and the quick-release design allow for easy replacement during production. After pressing, the ejector mechanism 30 ejects, moves, and flips the koji blocks, allowing the lower surface to rest on the belt conveyor for easy transport and handling.
[0026] In the above embodiments, the ejection mechanism is driven by a servo electric cylinder, which has high control precision and can accurately adjust the ejection force and stroke to adapt to the pressing and molding requirements of different materials, avoiding the problem of excessive or insufficient ejection.
[0027] As another preferred embodiment of this utility model, such as Figures 1-5 As shown, the cavity taper of the mold 21 is 25°-45°. In practice, this taper angle results in minimal material adhesion, facilitates material discharge, and achieves the highest production efficiency.
[0028] Servo electric cylinders are modular products that integrate a servo motor and a lead screw. They operate at speeds of 0.1~2 m / s with high control precision. They are characterized by low cost and flexible configuration, making them the best alternative to hydraulic and pneumatic cylinders. They are widely used in industries such as manufacturing, military, entertainment facilities, and automobiles. Their applications are common knowledge, therefore, this application does not elaborate further on this part of the structure.
[0029] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A rotary press turntable, characterized in that, The system includes a turntable body (10), a central bearing (11) is provided in the center of the turntable body (10), and multiple mold box assemblies (20) are arranged in an array on the turntable body (10) with the axis of the central bearing (11) as the center. The turntable body (10) has multiple cavities, and the mold box assemblies (20) are movably disposed in the cavities. The mold box assemblies (20) are used to hold the curing material and form the curing material into curing blocks under mechanical pressure. The mold box assembly (20) includes a mold. (21) The mold box (21) is constructed with a downwardly extending and gradually narrowing cavity so that the shaped material forms a downward shaped package when forming the shaped block. The bottom of the mold box assembly (20) is also provided with a continuous slot (22). The slot (22) is used to make the mold box assembly (20) engage with the ejector mechanism (30) through the slot (22) when the turntable body (10) rotates to the pressing position, and to separate from the ejector mechanism (30) when the turntable body (10) continues to rotate.
2. The turntable of a rotary pressing machine according to claim 1, characterized in that, The mold assembly (20) includes two side-by-side molds (21), each of which has a slot (22) formed at its bottom.
3. The turntable of a rotary pressing machine according to claim 1, characterized in that, The slot (22) is a T-shaped cavity and has an arc shape concentric with the central bearing (11).
4. The turntable of a rotary pressing machine according to claim 1, characterized in that, It also includes an ejector mechanism (30) for mounting on the press frame and ejecting the pressed blocks from the mold box (21).
5. The turntable of a rotary pressing machine according to claim 4, characterized in that, The ejection mechanism (30) includes a servo cylinder (31), which is fixedly connected to the ejection mechanism mounting plate (32). The free end of the servo cylinder (31) is connected to a push plate (33), and a push crankshaft (34) is connected to the push plate (33). The upper part of the push crankshaft (34) is equipped with a locking rod that is compatible with the locking slot (22).
6. The turntable of a rotary pressing machine according to claim 1, characterized in that, The cavity taper of the mold (21) is 25°-45°.
