Koji tray and mold starter culture system

By designing an obtuse angle and a supporting frame in the curved disc structure, combined with a fan and auger equipment, the problem of difficult seed koji scraping was solved, achieving efficient scraping and high-quality seed koji cultivation.

CN224047340UActive Publication Date: 2026-03-27宁波长荣酿造设备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

The existing koji tray structure makes it easy for koji to remain when scraping out, especially at the bottom corners, which is difficult to scrape out, affecting the koji production efficiency. In addition, conventional improvement methods will reduce the amount of koji cultivated.

Method used

The base plate and side plates of the koji tray are designed with an obtuse angle and are equipped with a support frame made of stainless steel. Combined with a fan and auger equipment, this ensures that the koji can be thoroughly scraped out and maintain cultivation efficiency.

Benefits of technology

It improves the ease and reliability of scraping the koji, reduces the amount of residue, enhances the load-bearing capacity, and maintains the quality and cultivation efficiency of the koji.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mold starter culture equipment, in particular to a starter tray and a mold starter culture system. The koji plate comprises a stamping plate and a supporting frame. Wherein the stamping plate comprises a bottom plate and a side plate, the bottom plate forms a surface of the koji tray for containing seed koji, the side plate is arranged on the periphery of the bottom plate, and an included angle between the bottom plate and the side plate is an obtuse angle; the supporting frame is arranged on the periphery of the stamping plate and attached to the face, away from the bottom plate, of the side plate. The included angle between the bottom plate and the side plate of the stamping plate in the koji plate is set to be the obtuse angle, so that the koji seeds cultured in the stamping plate can be thoroughly scraped out, and the material scraping process is smoother.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of koji culture equipment technical field, specifically to a koji tray and a koji culture system. BACKGROUND

[0002] As the starting culture of fermentation, high-quality koji can ensure the brewing process of soy sauce, vinegar and other food seasonings and liquor, so koji culture is a very important process in brewing production. Among them, koji tray as the carrier of koji culture, its side is usually surrounded by rectangular square tube to form, so that the included angle formed by koji tray bottom and side is usually a right angle.

[0003] Such koji tray structure makes it difficult for staff to scrape out the koji that has completed culture from the koji tray, as part of the koji adheres to the above-mentioned included angle and cannot be smoothly scraped out by conventional scraping equipment. And some manufacturers use auger equipment for koji scraping operation to further increase the residual amount of koji at the bottom corner position in the koji tray.

[0004] In the prior art, to reduce or avoid the koji residue in the above-mentioned koji tray, some manufacturers reserve a gap around the bottom of the koji tray when laying the koji that has not been cultured, so as to avoid the koji entering the bottom corner of the koji tray. However, this treatment reduces the culture amount of koji in the koji tray, to some extent, reduces the koji culture efficiency. SUMMARY

[0005] To solve the above problems, the utility model provides a koji tray and a koji culture system, which can completely scrape out the koji that has completed culture in the koji tray through conventional scraping operation without reducing the culture amount of koji, and the scraping process is more smooth and successful.

[0006] The utility model provides a koji tray in the first aspect, and the koji tray includes stamping plate and support frame. Among them, the stamping plate includes bottom plate and side plate, the bottom plate is configured as the surface of the koji tray for containing koji, the side plate is arranged at the outer periphery of the bottom plate, and the included angle between the bottom plate and the side plate is obtuse; The support frame is arranged at the outer periphery of the stamping plate and is attached to the side of the side plate away from the bottom plate.

[0007] Optionally, the height of the side plate is lower than the height of the side of the support frame attached to the side plate.

[0008] Optionally, the vertical section of the support frame is trapezoidal, and the bottom of the support frame is flush with the bottom plate.

[0009] Optionally, the stamping plate and the support frame are both made of stainless steel.

[0010] Optionally, the bottom plate is provided with a plurality of uniformly arranged perforations.

[0011] Optionally, the punched hole has a diameter of 1mm-3mm.

[0012] The second aspect of the utility model provides a kind of starter culture cultivation system, and the system has the koji tray described above.

[0013] Optionally, the starter culture cultivation system further comprises a fan, and the fan is used to deliver water mist to the koji tray up and down, and make the starter culture inside the stamping plate contact with the water mist through the opening part and the punched hole of the stamping plate.

[0014] Optionally, the starter culture cultivation system further comprises a screw conveyor, and the screw conveyor is used to scrape the starter culture after cultivation from the inside of the stamping plate.

[0015] In the koji tray provided by the utility model, when the starter culture after cultivation needs to be scraped from the inside of the stamping plate of the koji tray, the included angle between the bottom plate and the side plate of the stamping plate is obtuse, so that the scraper or other scraping equipment can be more smoothly attached to the bottom plate and the side plate of the koji tray for reciprocating scraping operation. And it will not cause the interruption of scraping operation or the omission of scraping position due to the change of scraping direction, avoid the appearance of scraping dead angle, thereby effectively reducing the residual amount of starter culture in the stamping plate of the koji tray after scraping. At the same time, the koji tray improves the simplicity and reliability of starter culture scraping, and accelerates the starter culture cultivation efficiency to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structure front view of the koji tray provided by the utility model embodiment.

[0017] Figure 2 is a local structure schematic view of the koji tray provided by the utility model embodiment.

[0018] Figure 3 is a structure plan view of the koji tray provided by the utility model embodiment.

[0019] Reference signs: 100- koji tray, 1- stamping plate, 11- bottom plate, 12- side plate, 13- punched hole, 2- support frame. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] The present embodiment provides a curved plate 100 for cultivating starter culture essential for brewing production. Under the premise of ensuring the quality of the starter culture cultivated in the curved plate 100 and not reducing the cultivation amount of the starter culture, the curved plate 100 in the present embodiment can make the starter culture after cultivation be scraped out from the inside of the curved plate 100 more easily by a scraper or other scraping equipment, greatly reduce the scraping difficulty of the starter culture in the curved plate 100, and reduce the residual amount of the starter culture in the curved plate 100 after scraping, to a certain extent, improve the discharging efficiency of the starter culture. Referring to Figure 1 , the curved plate 100 includes a punched plate 1 and a support frame 2. The punched plate 1 includes a bottom plate 11 and a side plate 12, the bottom plate 11 is configured as the surface of the curved plate 100 for containing the starter culture, and the side plate 12 is arranged at the outer periphery of the bottom plate 11, and the included angle between the bottom plate 11 and the side plate 12 is obtuse; the support frame 2 is arranged at the outer periphery of the punched plate 1 and is attached to the side of the side plate 12 away from the bottom plate 11.

[0022] Compared with the traditional curved plate 100, the included angle between the bottom plate 11 and the side plate 12 is a right angle, so that the included angle position may form a scraping dead angle, and then a smaller size scraping equipment needs to be used, and multiple and meticulous scraping operations need to be performed to completely scrape out the starter culture remaining in the scraping dead angle. Therefore, in the curved plate 100 provided in the present embodiment, the included angle between the bottom plate 11 and the side plate 12 of the punched plate 1 is designed as an obtuse angle, so that the ordinary scraper or other commonly used scraping equipment can easily enter the included angle position of the bottom plate 11 and the side plate 12 of the punched plate 1, thereby greatly reducing the residual amount of the starter culture in the included angle. At the same time, in the present embodiment, when the scraper is attached to the inner side wall of the punched plate 1, the scraper scrapes back and forth between the surface of the bottom plate 11 and the surface of the side plate 12 in the punched plate 1, and passes through the bottom included angle position of the punched plate 1. Because the bottom included angle of the punched plate 1 is designed as an obtuse angle, the scraping direction of the scraper changes less, so that the scraper can scrape from the surface of the side plate 12 to the surface of the bottom plate 11 or from the surface of the bottom plate 11 to the surface of the side plate 12 in a more smooth manner, and always keeps the scraper attached to the inner side wall of the punched plate 1. The scraping method in the present embodiment can avoid the interruption of the scraping operation or the omission of the scraping position caused by the large change of the scraping direction, further reduce the residual amount of the starter culture in the punched plate 1 after scraping, and improve the simplicity and reliability of the starter culture scraping. In addition, when the curved plate 100 provided in the present embodiment is cleaned, the bottom included angle designed as an obtuse angle in the punched plate 1 can make the cleaning inside the punched plate 1 more convenient and sufficient, to ensure that the quality of the starter culture entering the curved plate 100 for cultivation in the next batch maintains good stability.

[0023] In view of the fact that the angle between the bottom plate 11 and the side plate 12 of the stamping plate 1 in the curved disc 100 is designed as an obtuse angle, the load-bearing capacity of the curved disc 100 for the starter culture will be negatively affected to a certain extent. In order to compensate for the load-bearing capacity of the curved disc 100, the present embodiment is configured to set the support frame 2 outside the periphery of the stamping plate 1, so that one side surface of the support frame 2 is attached to the side plate 12 of the stamping plate 1 which is away from the bottom plate 11, thereby maintaining the angle between the bottom plate 11 and the side plate 12 of the stamping plate 1 substantially unchanged. The support frame 2 and the side plate 12 of the stamping plate 1 can be attached by welding.

[0024] In order to make the support frame 2 have a better supporting effect on the side plate 12 of the stamping plate 1, in the present embodiment, the vertical section of the support frame 2 is trapezoidal, and the bottom of the support frame 2 is flush with the bottom plate 11. Referring to Figure 1 and Figure 2 , the trapezoidal lower base angle of the support frame 2 attached to the side plate 12 of the stamping plate 1 is complementary to the angle between the bottom plate 11 and the side plate 12. In addition, the stamping plate 1 and the support frame 2 in the curved disc 100 provided by the present embodiment are both made of stainless steel material, which further enhances the load-bearing capacity of the curved disc 100 for the starter culture by taking advantage of the high strength and hardness of the stainless steel material. At the same time, since the stainless steel material has strong corrosion resistance, the curved disc 100 made of stainless steel material can effectively resist corrosion even in a starter culture environment with certain humidity and the need to closely attach to the microbial community in the starter culture, thereby avoiding rusting of the curved disc 100 and contamination of the starter culture. Therefore, the maintenance cost and replacement frequency of the curved disc 100 provided by the present embodiment are both at a low level. In addition, the surface of the stainless steel material is smooth and has high temperature resistance, and the stamping plate 1 is formed by integrally stamping the stainless steel plate, which can avoid the possibility of gaps in the bottom angle of the stamping plate 1 that may contain starter culture, so that the starter culture after cultivation can be easily scraped out of the inside of the stamping plate 1 and is not easy to breed bacteria, and at the same time, it is convenient for the cleaning and disinfection of the curved disc 100, so as to maintain the stability of the starter culture quality.

[0025] In order to facilitate the handling required for the production of the curved disc 100, in the present embodiment, the stamping plate 1 is made of stainless steel sheet, and the support frame 2 is made of stainless steel square tube, so that the stamping plate 1 is further lightened. Since the thickness of the stamping plate 1 is relatively thin, in order to prevent the staff from being scratched by the edge of the stamping plate 1 during the scraping operation or the handling of the curved disc 100, in the present embodiment, the height of the side plate 12 of the stamping plate 1 is lower than the height of the side of the support frame 2 attached to the side plate 12, so that it is difficult for the staff to directly contact the edge of the side plate 12 of the stamping plate 1, thereby reducing the risk of accidental injury of the operator during the scraping operation or the handling of the curved disc 100.

[0026] When the koji is poured into the stamping plate 1 of the koji tray 100 for cultivation, a certain amount of moisture and air needs to be provided to the koji so that the microbial population in the koji can breathe and grow normally. Therefore, in the present embodiment, by stamping the bottom plate 11 of the stamping plate 1, a plurality of uniformly arranged punch holes 13 are provided on the bottom plate 11, so that each position of the koji poured into the stamping plate 1 of the koji tray 100 can contact the moisture and air from the outside through the punch holes 13 and the opening portion above the stamping plate 1, thereby maintaining the normal breathing and growth of the microbial population in the koji and avoiding anaerobic spoilage of the koji. Figure 3

[0027] When the aperture of the punch holes 13 of the bottom plate 11 of the stamping plate 1 is too small, it can cause insufficient ventilation between the inside of the stamping plate 1 and the outside through the punch holes 13, thereby affecting the aerobic respiration of the microbial population in the koji. When the aperture of the punch holes 13 of the bottom plate 11 is too large, it can cause the moisture in the koji to flow out too quickly through the punch holes 13, which is also not conducive to the growth of the microbial population in the koji. Therefore, in the present embodiment, the aperture of the punch holes 13 provided on the bottom plate 11 of the stamping plate 1 is preferably in the range of 1 mm to 3 mm, which ensures that the air can flow between the inside of the stamping plate 1 and the outside through the punch holes 13, while maintaining the appropriate humidity of the koji, and more preferably, the aperture of the punch holes 13 is 2 mm.

[0028] In order to allow the koji to better cultivate the microbial population in the koji tray 100 for rapid growth, while ensuring that the koji can be quickly, conveniently and more thoroughly removed from the koji tray 100 after cultivation is completed, the present embodiment also provides a koji cultivation system. The system not only has the koji tray 100 provided by the present embodiment, but also includes a fan (not shown in the figure) and an auger (not shown in the figure). When the fan is turned on, it delivers water mist to the upper and lower positions of the koji tray 100 at a certain wind speed, and then under the driving of the air flow of the fan, the air together with the water mist contacts the koji in the stamping plate 1 through the opening portion and the punch holes 13 of the stamping plate 1, thereby allowing the microbial population in the koji to rapidly grow and reproduce in the stamping plate 1 with certain humidity and air permeability.

[0029] In the present embodiment, when the cultivation of the koji in the koji tray 100 is completed, the auger used in conjunction with the koji tray 100 can be turned on and placed inside the stamping plate 1 of the koji tray 100 at a certain angle, and the blades of the auger can cut and crush the koji and scrape it out from the inside of the stamping plate 1. Since the included angle between the bottom plate 11 and the side plate 12 of the stamping plate 1 is obtuse, the blades of the auger can enter the obtuse angle at the bottom of the stamping plate 1 to a greater extent, thereby more thoroughly scraping out the koji adhering to the obtuse angle at the bottom of the stamping plate 1, effectively reducing the difficulty of scraping the koji and the residual amount of the koji in the stamping plate 1 after scraping.

[0030] ​The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A curved disc, characterized in that, Comprising: a punch plate, including a bottom plate configured as a surface of the curved plate for holding the starter culture, and a side plate arranged at the outer periphery of the bottom plate, the included angle between the bottom plate and the side plate being obtuse; a support frame arranged at the outer periphery of the punch plate and attached to the side plate away from the bottom plate.

2. The cradle of claim 1, wherein, The height of the side plate is lower than the height of the side of the support frame attached to the side plate.

3. The cradle of claim 2, wherein, The vertical section of the support frame is trapezoidal, and the bottom of the support frame is flush with the bottom plate.

4. The cradle of claim 1, wherein, The punch plate and the support frame are both made of stainless steel.

5. The cradle of claim 1, wherein, The bottom plate is provided with a plurality of uniformly arranged punch holes.

6. The cradle of claim 5, wherein, The aperture of the punch hole is 1mm-3mm.

7. A koji culture system, characterized by comprising: The curved plate has any one of claims 1-6.

8. The koji culture system of claim 7, wherein Further comprising a fan for delivering water mist to the upper and lower parts of the curved plate, and making the starter culture inside the punch plate contact with the water mist through the opening part and punch holes of the punch plate.

9. The koji culture system of claim 7, wherein Further comprising an auger for scraping the starter culture after completion of culture from the inside of the punch plate.