Rice powder grinding equipment for rice cake processing

Abstract

This utility model relates to the field of rice cake processing technology, specifically a rice flour grinding device for rice cake processing. It includes a main body with a horizontally convex outer shell. A grinding disc and a drive shaft are rotatably mounted inside the shell and connected to each other. A spiral feed conveyor is located on the side of the drive shaft. The grinding disc has a first grinding surface and a second grinding surface on its side near the drive shaft and its outer ring, respectively. A first grinding element and a second grinding element, which cooperate with the first and second grinding surfaces, are fixed inside the shell. A feeding hopper is also located on the side of the main body. This rice flour grinding device for rice cake processing vertically sets the grinding disc and provides grinding surfaces on one side and the outer ring, allowing for multiple grinding operations until the powder reaches the desired fineness. The grinding area also features an efficient heat dissipation structure, facilitating long-term operation of the rice flour grinding device.

Description

Technical Field

[0001] This utility model relates to the field of rice cake processing technology, specifically to a rice flour grinding device for rice cake processing. Background Technology

[0002] In the process of making rice cakes, rice grains are ground to a fineness suitable for rice cake production using rice flour grinding equipment. In industrialized rice cake production, to improve processing efficiency and simplicity, dried rice is usually ground directly.

[0003] Existing rice flour grinding equipment typically consists of a grinding mechanism, a grading system, a power system, and a feeding device. During the grinding process, the equipment is ground multiple times after grading until the powder reaches the required fineness. Therefore, it requires a long grinding time. If the heat dissipation is not good, it will affect the service life of the grinding equipment. At the same time, the grinding disc usually grinds only on one side, resulting in low grinding efficiency. Summary of the Invention

[0004] The purpose of this utility model is to provide a rice flour grinding device for rice cake processing, in order to solve the problems mentioned in the background art. In the current rice cake processing, rice flour is ground multiple times after grading until the fineness of the powder meets the requirements. Therefore, it requires a long grinding time. If the heat dissipation effect is not good, it will affect the service life of the grinding device. At the same time, the grinding disc usually only grinds on one side, resulting in low grinding efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rice flour grinding device for rice cake processing, comprising a main body of the rice flour grinding device, wherein the main body of the rice flour grinding device is provided with a transversely convex outer shell, and a grinding disc and a transmission shaft are rotatably installed inside the outer shell, and a spiral feed conveyor is provided on the side of the transmission shaft. The grinding disc is provided with a first grinding surface and a second grinding surface on the side near the transmission shaft and the outer ring, respectively. A first grinding element and a second grinding element are fixed inside the outer shell to cooperate with the first grinding surface and the second grinding surface. A feeding hopper is also provided on the side of the main body of the rice flour grinding device, and a connecting hopper communicating with the convex section of the outer shell is fixed at the lower end of the feeding hopper by a snap-fit. A crushing clamping roller is installed between the feeding hopper and the connecting hopper. A discharge box is connected to the bottom of the outer shell, and a secondary grinding conveyor is installed on the side of the discharge box. A secondary grinding spiral feeder is installed inside the secondary grinding conveyor, and the discharge end of the secondary grinding conveyor is connected to the side of the outer shell.

[0006] Preferably, a grinding drive mechanism and a positioning end are respectively installed at both ends of the housing axis, and the drive shaft is rotatably engaged with the positioning end, and the grinding drive mechanism and the grinding disc are fixed by a coupling.

[0007] Preferably, a cooling water inlet pipe is inserted into the side of the positioning end, and a cooling water outlet pipe is inserted into both the end of the positioning end and the drive shaft.

[0008] Preferably, the second grinding element has a C-shaped structure, and the discharge end of the secondary grinding conveyor and the discharge port at the bottom of the outer shell are both located within the C-shaped opening of the second grinding element.

[0009] Preferably, a screen is inclinedly engaged inside the discharge box, and a discharge hole is opened at the bottom of the discharge box, and the secondary grinding conveyor is located at the lower end of the screen.

[0010] Preferably, a rotating vibrating hammer is rotatably installed inside the discharge box, and the hammer body of the rotating vibrating hammer is in contact with both the bottom surface of the screen and the bottom surface of the discharge box.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: The rice flour grinding equipment for rice cake processing has a vertically arranged grinding disc with grinding surfaces on one side and the outer ring, allowing for multiple grinding operations until the powder reaches the desired fineness. Simultaneously, the grinding area features an efficient heat dissipation structure, facilitating prolonged operation. The equipment also includes a crushing roller at the feed end for preliminary crushing of the material, ensuring a suitable particle size and improving grinding efficiency. After primary grinding, a filtration process is performed to screen out the powder that meets the required standards. A rotating vibrating hammer is integrated between the screen and the discharge box, assisting in the screening and discharge of the powder through impact, preventing accumulation. Attached Figure Description

[0012] Figure 1 This is a side view of a rice flour grinding device for processing rice cakes according to this utility model;

[0013] Figure 2 This is a schematic diagram of the connection structure between the secondary grinding conveyor and the outer shell of a rice flour grinding equipment for rice cake processing according to this utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the grinding disc and the transmission shaft of a rice flour grinding device for rice cake processing according to this utility model.

[0015] In the diagram: 1. Main body of rice flour grinding equipment; 2. Outer shell; 201. First grinding component; 202. Second grinding component; 3. Grinding drive mechanism; 4. Discharge box; 401. Discharge hole; 402. Screen; 403. Rotary vibrating hammer; 5. Feeding hopper; 501. Connecting hopper; 6. Grinding disc; 601. First grinding surface; 602. Second grinding surface; 7. Crushing clamping roller; 8. Positioning end; 801. Cooling water outlet pipe; 802. Cooling water inlet pipe; 9. Drive shaft; 901. Screw feed conveyor; 10. Secondary grinding conveyor; 1001. Secondary grinding screw conveyor. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-3This utility model provides a technical solution: a rice flour grinding device for rice cake processing, including a rice flour grinding device body 1, a transversely convex outer shell 2 on the rice flour grinding device body 1, and a grinding disc 6 and a drive shaft 9 rotatably mounted inside the outer shell 2, and a spiral feed conveyor 901 on the side of the drive shaft 9. The grinding disc 6 has a first grinding surface 601 and a second grinding surface 602 on the side near the drive shaft 9 and on the outer ring, respectively. A first grinding element 201 and a second grinding element 202 that cooperate with the first grinding surface 601 and the second grinding surface 602 are fixed inside the outer shell 2. A feeding hopper 5 is also provided on the side of the rice flour grinding device body 1, and a connecting hopper 5 that communicates with the convex section of the outer shell 2 is fixed at the lower end of the feeding hopper 5 by a snap-fit. 01, and a crushing clamping roller 7 is installed between the feeding hopper 5 and the connecting hopper 501. A grinding drive mechanism 3 and a positioning end head 8 are respectively installed at both ends of the shaft of the outer casing 2. The drive shaft 9 is rotatably engaged with the positioning end head 8, and the grinding drive mechanism 3 and the grinding disc 6 are fixed by a coupling. This structure can use a geared motor to form the grinding drive mechanism 3, which simultaneously drives the drive shaft 9 and the grinding disc 6 to rotate. The positioning end head 8 positions the end of the drive shaft 9. A cooling water inlet pipe 802 is inserted into the side of the positioning end head 8, and a cooling water outlet pipe 801 is inserted into both the end of the positioning end head 8 and the drive shaft 9. This structure allows cooling water to enter the grinding part through the drive shaft 9 and then exit through the cooling water outlet pipe 801, thus achieving cooling water... In the cyclic processing, when the drive shaft 9 rotates, the raw material crushed by the crushing roller 7 can be conveyed to the grinding section. The bottom of the outer shell 2 is connected to the discharge box 4, and a secondary grinding conveyor 10 is installed on the side of the discharge box 4. A secondary grinding spiral feeder 1001 is installed inside the secondary grinding conveyor 10, and the discharge end of the secondary grinding conveyor 10 is connected to the side of the outer shell 2. The second grinding element 202 has a C-shaped structure, and the discharge end of the secondary grinding conveyor 10 and the discharge port at the bottom of the outer shell 2 are both located in the C-shaped opening of the second grinding element 202. This structure allows the secondary grinding conveyor 10 to transport powder with unqualified particle size to the side of the grinding disc 6, where it is further ground through the cooperation of the second grinding surface 602 and the second grinding element 202 until the powder is fine. The second grinding element 202, with its C-shaped structure, avoids obstructing the entry and exit of powder. A screen 402 is inclinedly engaged inside the discharge box 4, and a discharge hole 401 is provided at the bottom of the discharge box 4. The secondary grinding conveyor 10 is located at the lower end of the screen 402. This structure allows the screen 402 to sieve the ground powder, discharging the powder with acceptable particle size first, while the unacceptable powder is further ground. A rotary vibrating hammer 403 is rotatably installed inside the discharge box 4, with its hammer body contacting and engaging with both the bottom surface of the screen 402 and the bottom surface of the discharge box 4. This structure uses an existing motor to drive the rotation of the rotary vibrating hammer 403, allowing its hammer body to strike the discharge box 4 and the screen 402.Assists in material discharge and screening.

[0018] Working principle: When using this rice flour grinding equipment for rice cake processing, the main body 1 of the rice flour grinding equipment is first stably positioned by the frame structure. During the grinding operation, rice is poured into the feeding hopper 5, and the crushing roller 7 performs preliminary crushing of the rice. Then, it enters the outer shell 2 through the connecting hopper 501. The grinding drive mechanism 3 causes the grinding disc 6 and the drive shaft 9 to rotate synchronously within the outer shell 2. When the drive shaft 9 rotates, the preliminarily crushed material is conveyed to the grinding disc 6 through the screw feeder 901. The powder is ground by the cooperation of the first grinding surface 601 and the first grinding piece 201. The powder falls into the discharge box 4. Then, the rotating vibrating hammer 403 strikes the screen 402 and the bottom of the discharge box 4 during the rotation process to assist in screening and discharge. The powder is discharged from the discharge hole 401 for collection. The unscreened powder enters the secondary grinding conveyor 10 and is lifted and conveyed to the outer shell 2 again by the secondary grinding screw conveyor 1001. At this time, the second grinding component 202 and the second grinding surface 602 cooperate to further grind. Cooling water enters the drive shaft 9 and the grinding area from the positioning end 8 through the cooling water inlet pipe 802 and the cooling water outlet pipe 801 to efficiently dissipate heat from the grinding components, thereby completing a series of operations.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rice flour grinding device for processing rice cakes, comprising a main body (1) of the rice flour grinding device, characterized in that: The main body (1) of the rice flour grinding equipment is provided with a transversely convex outer shell (2), and a grinding disc (6) and a drive shaft (9) are rotatably installed inside the outer shell (2). A spiral feed conveyor (901) is provided on the side of the drive shaft (9). The grinding disc (6) is provided with a first grinding surface (601) and a second grinding surface (602) on the side near the drive shaft (9) and the outer ring, respectively. A first grinding component (201) and a second grinding component (202) are fixed inside the outer shell (2) to cooperate with the first grinding surface (601) and the second grinding surface (602). The rice flour grinding equipment body (1) is also provided with a feeding hopper (5) on the side, and the lower end of the feeding hopper (5) is connected to the protruding section of the outer shell (2) by a snap-fit. A crushing clamping roller (7) is installed between the feeding hopper (5) and the connecting hopper (501). The bottom of the outer shell (2) is connected to the discharge box (4), and a secondary grinding conveyor (10) is installed on the side of the discharge box (4). A secondary grinding spiral conveyor (1001) is installed inside the secondary grinding conveyor (10), and the discharge end of the secondary grinding conveyor (10) is connected to the side of the outer shell (2).

2. The rice flour grinding equipment for rice cake processing according to claim 1, characterized in that: The grinding drive mechanism (3) and the positioning end (8) are respectively installed at both ends of the axis of the outer shell (2), and the transmission shaft (9) and the positioning end (8) are rotatably engaged, and the grinding drive mechanism (3) and the grinding disc (6) are fixed by a coupling.

3. The rice flour grinding equipment for rice cake processing according to claim 2, characterized in that: The side of the positioning end (8) is connected to a cooling water inlet pipe (802), and the end of the positioning end (8) and the drive shaft (9) are connected to a cooling water outlet pipe (801).

4. The rice flour grinding equipment for rice cake processing according to claim 1, characterized in that: The second grinding component (202) has a C-shaped structure, and the discharge end of the secondary grinding conveyor (10) and the bottom discharge port of the outer shell (2) are both located in the C-shaped opening of the second grinding component (202).

5. The rice flour grinding equipment for rice cake processing according to claim 1, characterized in that: The discharge box (4) is inclined and fitted with a screen (402), and the bottom of the discharge box (4) is provided with a discharge hole (401), and the secondary grinding conveyor (10) is located at the lower end of the screen (402).

6. The rice flour grinding equipment for rice cake processing according to claim 1, characterized in that: A rotating vibrating hammer (403) is rotatably installed inside the discharge box (4), and the hammer body of the rotating vibrating hammer (403) is in contact with the bottom surface of the screen (402) and the bottom surface of the discharge box (4).

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