Sanitary grade stainless steel grater

By using a grinder made of food-grade stainless steel, designing the blades to have an undulating shape, and incorporating a sealing structure in the coupling area, the risks of contamination and the inconvenience of replacing vulnerable parts in the grinder are solved, resulting in higher hygiene and a longer equipment lifespan.

CN224486186UActive Publication Date: 2026-07-14XUCHANG CHIKE MASCH MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XUCHANG CHIKE MASCH MFG CO LTD
Filing Date
2025-07-08
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing grinding mills pose a risk of contamination and are inconvenient to replace easily worn parts, especially the grinding wheels, which wear out frequently and are difficult to replace.

Method used

The grinder, made of food-grade stainless steel, includes a drive unit and a grinding unit. The grinding unit uses a blade disc and a rotating base. The blades are designed with an undulating shape. The coupling area is equipped with a coupling sleeve and a cover to ensure sealing and hygiene.

Benefits of technology

It improves the hygiene of the grinding process, reduces the difficulty and frequency of replacing vulnerable parts, extends the replacement cycle, and reduces the risk of food contamination.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224486186U_ABST
    Figure CN224486186U_ABST
Patent Text Reader

Abstract

The utility model relates to a grinding paste equipment technical field especially a sanitary grade stainless steel grinding paste machine, including drive arrangement and grinding paste device, grinding paste device includes the shell, is equipped with mesh plate in the shell, the mesh plate upside is the grinding paste cavity, the downside is the discharge chamber, is equipped with the discharge port in one side of the discharge chamber, is equipped with the blanking tube that communicates to the grinding paste cavity in the shell upper portion, is equipped with the cutterhead in the grinding paste cavity, is equipped with the rotary base in the middle part of mesh plate, the cutterhead is fixed in rotary base top, rotary base lower part is connected to drive arrangement through the shaft coupling, the shaft coupling is out of the bottom plate of discharge chamber and is sealed with it setting, this kind of structure makes the shell, mesh plate, cutterhead, rotary base can adopt food grade stainless steel material, and the grinding paste is more sanitary, and the pollution of the sand wheel wear particle to the soybean milk will not be caused. The cutterhead of sanitary grade stainless steel grinding paste machine setting reduces the difficulty of replacing the vulnerable parts, and the cutterhead of stainless steel material is more wear -resisting, and the replacement cycle is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, specifically to a sanitary stainless steel grinding machine. Background Technology

[0002] In the processing of soy products, the first step is grinding the whole beans. Currently, a grinding wheel mill is used. For example, Chinese patent document CN207323357U describes an adjustable multi-functional grinding machine, which uses grinding wheels for grinding. However, due to the heavy load in this first step, the grinding wheels wear out quickly, typically requiring replacement once a week. This frequency is too high, and the grinding particles pose a risk of contaminating the soy products. Furthermore, wheel replacement requires balancing, making the replacement process technically challenging. Utility Model Content

[0003] The present invention aims to provide a sanitary stainless steel paste grinder to solve the technical problems of existing paste grinders having the risk of contamination and inconvenient replacement of vulnerable parts.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] Design a sanitary stainless steel paste grinder, including a drive unit and a grinding device. The drive unit is connected to the grinding device. The grinding device includes a shell with a perforated plate inside. The upper side of the perforated plate is the grinding chamber, and the lower side is the discharge chamber. A discharge port is provided on one side of the discharge chamber. A feed pipe communicating with the grinding chamber is provided on the upper part of the shell. A cutter disc is provided in the grinding chamber. A rotating base is inserted through the middle of the perforated plate. The cutter disc is fixed to the top of the rotating base and has multiple blades. The lower part of the rotating base is connected to the drive unit through a coupling. The coupling passes through the bottom plate of the discharge chamber and is sealed to it. The shell, perforated plate, cutter disc, and rotating base are all made of food-grade stainless steel.

[0006] Preferably, the blade has an undulating shape consisting of an upper bent plate portion and a lower bent plate portion arranged adjacent to each other.

[0007] Preferably, a coupling cover is provided on the lower side of the rotating base, and a coupling sleeve is provided in the middle of the bottom plate of the discharge cavity, with the coupling cover and the coupling sleeve being sealed together.

[0008] Preferably, the perforated plate is a downwardly convex conical perforated plate.

[0009] Preferably, the bottom plate of the discharge cavity is a conical bottom plate that convexes upwards.

[0010] Preferably, the outer shell includes a lower cylinder and an inner cylinder. Multiple supports are provided in the middle of the inner wall of the lower cylinder. A first cover plate, integrally formed with the feed pipe, is provided at the top of the inner cylinder. A perforated plate is disposed at the bottom of the inner cylinder, and the inner cylinder is fixed to the supports. An upper cylinder is fitted onto the upper part of the lower cylinder. A second cover plate is provided at the top of the upper cylinder, and a support sleeve fitted onto the feed pipe is provided in the middle of the second cover plate. Multiple support plates are provided at the bottom of the inner cylinder, and the perforated plate is disposed on the support plates.

[0011] Preferably, a hopper is provided at the top of the feeding pipe.

[0012] Preferably, a cutter disc pressure plate is provided on the top of the rotating base, and a guide plate for dispersing feeding is provided on the cutter disc pressure plate.

[0013] Preferably, the drive device includes a motor, a lower flange is provided at the bottom of the housing, an upper flange is provided at the front end of the motor housing, the upper flange is connected to the lower flange, and the motor shaft is connected to the coupling.

[0014] Preferably, the drive device further includes a support base, and a plurality of support rods are provided between the support base and the lower flange.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The sanitary stainless steel paste grinder includes a drive device and a grinding device. The grinding device includes a shell with a perforated plate inside. The upper side of the perforated plate is the grinding chamber, and the lower side is the discharge chamber. A discharge port is provided on one side of the discharge chamber. A feeding pipe is provided on the upper part of the shell, which connects to the grinding chamber. A cutter disc is provided in the grinding chamber. A rotating base is passed through the middle of the perforated plate. The cutter disc is fixed on the top of the rotating base and has multiple blades. The lower part of the rotating base is connected to the drive device through a coupling. The coupling passes through the bottom plate of the discharge chamber and is sealed to it. This structure allows the shell, perforated plate, cutter disc, and rotating base to all be made of food-grade stainless steel, making the grinding more hygienic and preventing contamination of the soy milk by particles worn by the grinding wheel. 2. Current grinding mills use grinding wheels internally for grinding, and replacing these wheels requires balancing, making the process difficult. This sanitary stainless steel grinding mill features a cutter disc, which reduces the difficulty of replacing wear parts. Furthermore, the stainless steel cutter disc is more wear-resistant, extending the replacement cycle. 3. This sanitary stainless steel grinding mill effectively isolates external components by incorporating a coupling sleeve and coupling cover in the coupling area, further enhancing its sanitary rating. Attached Figure Description

[0016] The present invention will be explained in detail below with reference to the accompanying drawings. It should be noted that the drawings are used to provide a further understanding of the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but should not impose any limitation on the implementability of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 This is a three-dimensional structural diagram of an embodiment of the sanitary stainless steel paste grinder of this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of the grinding device in one embodiment of the sanitary stainless steel paste grinder of this utility model.

[0020] Figure 3 This is a schematic diagram of the blade installation in one embodiment of the sanitary stainless steel paste grinder of this utility model.

[0021] In the figure: drive unit 100, motor 110, upper flange 120, support base 130, support rod 140;

[0022] The grinding device includes: outer shell 210, lower cylinder 211, inner cylinder 212, support 213, first cover plate 214, upper cylinder 215, second cover plate 216, support sleeve 217, support plate 218, mesh plate 220, grinding chamber 230, discharge chamber 240, discharge port 241, bottom plate 242, coupling sleeve part 243, feeding pipe 250, hopper 251, cutter head 260, blade 261, upper bending plate part 2611, lower bending plate part 2612, cutter head pressure plate 262, guide plate 2621, rotating base 270, coupling cover sleeve 271, coupling 280, and lower flange 290. Detailed Implementation

[0023] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0024] In one embodiment, a sanitary stainless steel paste grinder is provided, such as Figure 1-2As shown, the sanitary stainless steel grinding machine includes a drive unit 100 and a grinding device 200. The drive unit 100 is connected to the grinding device 200 and provides power to the grinding device 200 to crush soybeans for grinding. The grinding device 200 includes a housing 210, in which a perforated plate 220 is provided. The upper side of the perforated plate 220 is a grinding chamber 230, and the lower side is a discharge chamber 240. After the soybeans are crushed and ground into soybean paste in the grinding chamber 230, they seep downwards through the perforated plate 220 into the discharge chamber 240. A discharge port 241 is provided on one side of the discharge chamber 240, and a guide channel (not shown in the figure) can be provided on the discharge port 241 for the soybean paste to flow out. The upper part of the outer shell 210 is provided with a feeding pipe 250 that connects to the grinding chamber 230. A hopper 251 is provided at the top of the feeding pipe 250. Soaked beans enter the grinding chamber 230 from the hopper 251 through the feeding pipe 250.

[0025] like Figure 2 As shown, a cutter head 260 is provided in the grinding chamber 230, and a rotating base 270 is inserted through the middle of the perforated plate 220. The perforated plate 220 is fixed in the outer shell 210, and a gap is reserved between the rotating base 270 and the perforations in the perforated plate 220 so that the perforated plate 220 does not obstruct the rotation of the rotating base 270. The cutter head 260 is fixed on the top of the rotating base 270, and multiple blades 261 are provided on the cutter head 260. The blades 261 are elongated, and their outer ends are close to the inner wall of the grinding chamber 230, so that when the cutter head 260 rotates, the blades 261 have a large rotational scanning area in the grinding chamber 230, thereby improving the crushing efficiency. The lower part of the rotating base 270 is connected to the drive unit 100 via a coupling 280. The coupling 280 passes through the bottom plate 242 of the discharge chamber 240 and is sealed to it. The coupling 280 and the perforation in the middle of the bottom plate 242 are sealed to prevent soybean paste leakage. The drive unit 100 drives the cutter head 260 to rotate via the coupling 280 and the rotating base 270 in sequence, and the blades 261 on the cutter head 260 crush the soybeans. The outer shell 210, the perforated plate 220, the cutter head 260, and the rotating base 270 of this sanitary stainless steel grinder are all made of food-grade stainless steel, such as food-grade 304 stainless steel or 316 stainless steel.

[0026] Furthermore, such as Figure 3As shown, the blades 261 on the cutter head 260 have an undulating shape consisting of an upper bent plate portion 2611 and a lower bent plate portion 2612 arranged adjacent to each other. The upper bent plate portion 2611 refers to the upward bending direction from the root of the blade to the distal end, and the lower bent plate portion 2612 refers to the downward bending direction from the root of the blade to the distal end. The blades 261 are thin plates, and the soybeans are crushed by impacting the soybeans on both sides. By designing the blades 261 into an undulating shape, the impact crushing effect on the soybeans is improved. The blades 261 gradually narrow from the root to the distal end in order to maintain the strength of the blades 261.

[0027] Furthermore, such as Figure 2-3 As shown, a cutter head pressure plate 262 is provided on the top of the rotating base 270. Corresponding screw holes are provided on the top surfaces of both the cutter head pressure plate 262 and the rotating base 270. The cutter head pressure plate 262 is fixed to the top of the rotating base 270 by screws, thus pressing down the cutter head 260. The hole in the middle of the cutter head 260 is an internal hexagonal hole, and a corresponding hexagonal cutter head shaft is provided on the top of the rotating base 270. By matching the internal hexagonal hole with the hexagonal cutter head shaft, the cutter head can rotate with the rotating base 270. Additionally, two guide plates 2621 for dispersing feed are provided on the cutter head pressure plate 262. The soybeans entering the grinding chamber 230 from the feed pipe 250 are dispersed by the guide plates 2621.

[0028] Furthermore, such as Figure 2 As shown, a coupling cover 271 is provided on the lower side of the rotating base 270. The rotating base 270 and the coupling cover 271 are fixed to the coupling 280 by bolts. A coupling sleeve portion 243 is provided in the middle of the bottom plate 242 of the discharge chamber 240. The coupling sleeve portion 243 is integrally formed with the bottom plate 242. The upper half of the coupling 280 is located in the coupling cover 271, and the lower half is located in the coupling sleeve portion 243. The coupling cover 271 and the coupling sleeve portion 243 are sealed together, thereby achieving a seal between the bottom plate 242 of the discharge chamber 240 and the coupling 280, and isolating the coupling 280 outside the discharge chamber 240, ensuring the hygiene of the inside of the discharge chamber 240. The seal is achieved by providing a sealing ring (not shown in the figure) between the coupling cover 271 and the coupling sleeve portion 243.

[0029] Furthermore, such as Figure 1 As shown, the perforated plate 220 is a downwardly convex conical perforated plate, which facilitates the leakage of soybean paste from the perforated plate 220 downwards. The bottom plate 242 of the discharge cavity 240 is an upwardly convex conical bottom plate in the middle, so that the soybean paste that leaks into the discharge cavity 240 can be stored in the surrounding space and flow out from the discharge port 241.

[0030] Furthermore, such as Figure 2As shown, the outer shell 210 includes a lower cylinder 211 and an inner cylinder 212. Multiple supports 213 are provided in the middle of the inner wall of the lower cylinder 211 so that the bottom of the inner cylinder 212 can be fixed to the supports 213. Screw holes are provided on the bottom of the inner cylinder 212 and on the supports 213, and the inner cylinder 212 is fixed to the supports 213 by screws. A first cover plate 214 integrally formed with the feed pipe 250 is provided on the top of the inner cylinder 212. The first cover plate 214 can be fixed to the top of the inner cylinder 212 by a threaded connection. A perforated plate 220 is provided at the bottom of the inner cylinder 212 and is fixed to the bottom edge of the inner cylinder 212 by screws or welding. An upper cylinder 215 is fitted onto the upper part of the lower cylinder 211. A second cover plate 216 is provided on the top of the upper cylinder 215. A support sleeve 217, which is fitted onto the feed pipe 250, is provided in the middle of the second cover plate 216. The second cover plate 216 and the top of the upper cylinder 215 are integrally formed. The upper cylinder 215 can be connected to the upper part of the lower cylinder 211 by screwing. The support sleeve 217 serves to support the feed pipe 250 and the hopper 251. Multiple support plates 218 are provided at the bottom of the inner cylinder 212. A perforated plate 220 is placed on the support plates 218, and the support plates 218 support the perforated plate 220.

[0031] Furthermore, such as Figure 1-2 As shown, the drive unit 100 is located at the bottom of the grinding device 200. The drive unit 100 includes a motor 110. A lower flange 290 is provided at the bottom of the housing 210. The bottom plate 242 of the discharge chamber 240 is fixed to the lower flange 290 by bolts. An upper flange 120 is provided at the front end of the motor 110 housing. The upper flange 120 and the lower flange 290 are connected by bolts. The rotating shaft of the motor 110 is connected to the coupling 280. The drive unit 100 also includes a support base 130. Three support rods 140 are provided circumferentially between the support base 130 and the lower flange 290. The upper end of the support rod 140 is screwed to the lower flange 290, and the lower end of the support rod 140 passes through and is supported on the support base 130.

[0032] The sanitary stainless steel grinder operates as follows: Whole beans enter the grinding chamber 230 through the hopper 251. The grinding chamber 230 is the working chamber for grinding the beans. Blades 261, rotating at high speed within this chamber, crush and grind the beans into a paste-like fluid. The paste then flows through the mesh plate 220 below the blades 261 into the discharge chamber 240, and further exits through the discharge port 241 on one side of the discharge chamber 240. This sanitary stainless steel grinder is designed to replace current ordinary grinding mills. It uses blade impact to first crush the whole beans into a paste, and then a subsequent separating mill separates the bean residue and soy milk. This significantly reduces the replacement cycle of vulnerable parts and minimizes food contamination.

[0033] Compared to current disc grinders, this sanitary stainless steel grinder has the following advantages:

[0034] (1) When grinding whole beans, ordinary grinding wheel mills are under heavy load, so the grinding wheel of the first process is worn out. It usually needs to be replaced once a week, which is too frequent. Moreover, the replacement requires certain technical means, and the grinding wheel particles generated by wear also pose a certain risk of pollution.

[0035] This sanitary stainless steel grinder includes a drive unit and a grinding device. The grinding device includes a housing with a perforated plate inside. The upper side of the perforated plate is the grinding chamber, and the lower side is the discharge chamber. A discharge port is located on one side of the discharge chamber. A feed pipe is located on the upper part of the housing and connects to the grinding chamber. A cutter disc is located in the grinding chamber. A rotating base passes through the middle of the perforated plate, and the cutter disc is fixed to the top of the rotating base. The cutter disc has multiple blades. The lower part of the rotating base is connected to the drive unit via a coupling. The coupling passes through the bottom plate of the discharge chamber and is sealed to it. This structure allows the housing, perforated plate, cutter disc, and rotating base to all be made of food-grade stainless steel, making the grinding process more hygienic and preventing contamination of the soy milk by particles from grinding wheel abrasion.

[0036] (2) The current grinding wheel type grinder has grinding wheels inside for grinding. When the grinding wheel is replaced, the balance needs to be adjusted, which is difficult to replace. The cutter disc set in this sanitary stainless steel grinder reduces the difficulty of replacing vulnerable parts, and the stainless steel cutter disc is more wear-resistant, extending the replacement cycle.

[0037] (3) The sanitary stainless steel grinding machine effectively isolates external components and further improves the sanitary level by setting a coupling sleeve and a coupling cover in the coupling area.

[0038] It should be noted that, unless otherwise defined, all terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains, and terms such as those defined in a common dictionary should be interpreted as having a meaning consistent with their meaning in the context of the relevant art. It should also be understood that the above is a description of this disclosure and should not be considered as a limitation thereof. Although several exemplary embodiments of this disclosure have been described, those skilled in the art will readily understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this invention. Therefore, all such modifications are intended to be included within the scope of this disclosure as defined in the claims, and will not be detailed here.

Claims

1. A sanitary stainless steel paste grinder, comprising a drive unit and a grinding unit, wherein the drive unit is connected to the grinding unit, characterized in that: The grinding device includes a housing with a perforated plate inside. The upper side of the perforated plate forms the grinding chamber, and the lower side forms the discharge chamber. A discharge port is located on one side of the discharge chamber. A feed pipe connecting to the grinding chamber is located on the upper part of the housing. A cutter disc is located within the grinding chamber. A rotating base passes through the center of the perforated plate and is fixed to the top of the rotating base. Multiple blades are mounted on the cutter disc. The lower part of the rotating base is connected to the drive device via a coupling, which passes through and seals against the bottom plate of the discharge chamber. The housing, perforated plate, cutter disc, and rotating base are all made of food-grade stainless steel. The blade has an undulating shape consisting of an upper bent plate portion and a lower bent plate portion arranged adjacent to each other; A cutter head pressure plate is provided on the top of the rotating base, and a guide plate for dispersing feeding is provided on the cutter head pressure plate.

2. The sanitary stainless steel paste grinder according to claim 1, characterized in that: A coupling cover is provided on the lower side of the rotating base, and a coupling sleeve is provided in the middle of the bottom plate of the discharge cavity. The coupling cover and the coupling sleeve are sealed together.

3. The sanitary stainless steel paste grinder according to claim 1, characterized in that: The perforated plate is a downward-convex conical perforated plate.

4. The sanitary stainless steel paste grinder according to claim 1, characterized in that: The bottom plate of the discharge chamber is a cone-shaped bottom plate that convexes upwards in the middle.

5. The sanitary stainless steel paste grinder according to claim 1, characterized in that: The outer shell includes a lower cylinder and an inner cylinder. Multiple supports are provided in the middle of the inner wall of the lower cylinder. A first cover plate integrally formed with the feed pipe is provided at the top of the inner cylinder. A mesh plate is provided at the bottom of the inner cylinder. The inner cylinder is fixed on the supports. An upper cylinder is sleeved on the upper part of the lower cylinder. A second cover plate is provided at the top of the upper cylinder. A support sleeve sleeved on the feed pipe is provided in the middle of the second cover plate. Multiple support plates are provided at the bottom of the inner cylinder. The mesh plate is provided on the support plates.

6. The sanitary stainless steel paste grinder according to claim 1, characterized in that: A hopper is provided at the top of the feeding pipe.

7. The sanitary stainless steel paste grinder according to claim 1, characterized in that: The drive device includes a motor, a lower flange is provided at the bottom of the housing, an upper flange is provided at the front end of the motor housing, the upper flange is connected to the lower flange, and the motor shaft is connected to the coupling.

8. The sanitary stainless steel paste grinder according to claim 7, characterized in that: The drive device also includes a support base, and a plurality of support rods are provided between the support base and the lower flange.