A kind of grinding device for waxy rice powder processing

Abstract

The utility model relates to the waxy rice powder processing technical field, specifically disclose a kind of grinding device for waxy rice powder processing, including mounting bracket, the outer surface of mounting bracket is fixed with lower mill pan, the outer surface of lower mill pan is rotatably installed with upper mill pan, the inside of discharge cylinder is communicated with the feed inlet of upper mill pan.This waxy rice powder processing grinding device, with the rotation of upper mill pan drive will drive discharge cylinder move together, make spring contact rod contact with limit rod, with the movement of spring contact rod plug head will rise, and separate from the feed inlet of mill pan, let waxy rice in discharge cylinder can intermittently discharge outward, and by adjusting the height of limit rod can adjust the opening time and opening degree of plug head, let waxy rice can be quantitatively intermittent automatic discharge, let lower mill pan and upper mill pan not because of uneven feeding and lead to grinding granularity uneven, reduce the threshold when using, reduce the labor intensity when using simultaneously.

Description

Technical Field

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

[0002] Glutinous rice flour is a food processing raw material made by grinding glutinous rice. It is widely used in traditional Chinese delicacies and desserts such as pastries, zongzi (sticky rice dumplings), ciba (glutinous rice cakes), and tangyuan (sweet rice balls), and plays an important role in the production of modern snack foods. Glutinous rice is generally processed into flour using two methods: dry grinding without adding water and wet grinding with water. These two grinding methods are generally used to make different foods. While adding glutinous rice to a stone mill for crushing and grinding preserves the original flavor of the glutinous rice and produces a fine texture, this method has low production efficiency and high labor intensity. It is also highly dependent on the user's operation; uneven or intermittent feeding will result in uneven particle size in the ground glutinous rice flour, requiring secondary grinding. This process is inconvenient and labor-intensive. Utility Model Content

[0003] The purpose of this utility model is to provide a grinding device for processing glutinous rice flour, so as to solve the problems mentioned in the background art, such as uneven grinding and high labor intensity caused by intermittent feeding during grinding.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a grinding device for processing glutinous rice flour, comprising a mounting frame, a lower grinding disc fixedly mounted on the outer surface of the mounting frame, the discharge port of the lower grinding disc extending out of one side of the mounting frame, an upper grinding disc rotatably mounted on the outer surface of the lower grinding disc, the upper grinding disc being in contact with the outer surface of the lower grinding disc, a truncated cone being provided at the center of the lower grinding disc, a feed port being provided on the outer surface of the upper grinding disc, a feeding cylinder fixedly mounted on the outer surface of the upper grinding disc, the interior of the feeding cylinder being inclined, the interior of the feeding cylinder communicating with the feed port of the upper grinding disc, and an elastic actuating mechanism being provided between the feeding cylinder and the mounting frame.

[0005] Preferably, the elastic actuation mechanism includes: a limiting rod, which is slidably mounted on the outer surface of the mounting frame and fixed to the mounting frame with screws. One end of the limiting rod is inclined. A spring contact rod is slidably mounted on the outer surface of the feeding cylinder. A plug is fixedly mounted on the end of the spring contact rod near the upper grinding disc. The outer surface of the plug is tapered and fits against the feed inlet of the upper grinding disc.

[0006] By adopting the above technical solution, glutinous rice is fed into the feeding cylinder, eliminating the need for continuous feeding while the upper grinding disc rotates, thus reducing the user's labor intensity. Simultaneously, when the upper grinding disc rotates and moves the feeding cylinder past the limiting rod, the spring contact rod contacts the limiting rod and moves upward, allowing the spring contact rod to lift the stopper, enabling the glutinous rice to enter the feed inlet of the upper grinding disc. After the spring contact rod passes the limiting rod, its elasticity automatically resets, discharging the glutinous rice from the feeding cylinder in a quantitative and intermittent manner. This eliminates the need for multiple manual feedings while the lower and upper grinding discs rotate, allowing for the automatic quantitative addition of glutinous rice. The intermittent feeding reduces worker labor intensity while maintaining uniform particle size during glutinous rice flour grinding.

[0007] Preferably, the outer surface of the limiting rod is uniformly provided with grooves, and the outer surface of the limiting rod is in contact with the outer surface of the spring contact rod. A stirring rod is fixedly installed on the outer surface of the spring contact rod, and the outer surface of the stirring rod is not in contact with the outer surface of the discharge cylinder. The discharge cylinder is engaged with the spring contact rod.

[0008] Using the above technical solution, when the spring contact rod passes the limiting rod, the groove on the outer surface of the limiting rod allows the spring contact rod to bounce up and down continuously. The up and down movement of the spring contact rod drives the stirring rod to move, preventing the glutinous rice from accumulating inside the feeding cylinder and becoming stuck. By adjusting the height of the limiting rod, the opening time of the stopper can be controlled, ensuring that the glutinous rice is discharged quantitatively from inside the feeding cylinder each time the stopper is opened, reducing the chance of blockage inside the feeding cylinder.

[0009] Preferably, a screw is rotatably mounted on the outer surface of the mounting bracket, and a movable mounting plate is threaded onto the outer surface of the screw. A threaded engagement mechanism is provided between the movable mounting plate and the mounting bracket. The threaded engagement mechanism includes a worm gear, which is fixedly mounted on the outer surface of the screw. A worm is rotatably mounted inside the mounting bracket and meshes with the worm gear. A displacement motor is fixedly mounted on the outer surface of the mounting bracket and connected to the worm.

[0010] By adopting the above technical solution, the rotation of the displacement motor can drive the worm gear to move, allowing the worm wheel meshing with the worm gear to rotate, which in turn drives the screws on both sides to rotate. This allows the movable mounting plate to rise synchronously with uniform force. The rise drives the transmission lifting rod to move, enabling the transmission lifting rod to lift the upper grinding disc. At the same time, the self-locking property of the worm gear and worm wheel makes the movement of the upper grinding disc more stable and enhances the safety during cleaning. It also facilitates the cleaning of the grinding surfaces of the upper and lower grinding discs after grinding, making cleaning more convenient, ensuring the hygiene of the grinding device, and reducing the labor intensity of workers during cleaning.

[0011] Preferably, a transmission lifting rod is rotatably mounted on the outer surface of the movable mounting plate, and the end of the transmission lifting rod away from the screw has a spline design. The end of the transmission lifting rod away from the worm gear is inserted into the upper grinding disc. The transmission lifting rod passes through the lower grinding disc, and the lower grinding disc, the upper grinding disc, and the transmission lifting rod are concentrically designed. A reduction motor is fixedly mounted on the outer surface of the movable mounting plate, and the output end of the reduction motor is connected to the transmission lifting rod.

[0012] By adopting the above technical solution, the spline design of the geared motor and the transmission lifting rod allows the upper grinding disc to rotate slowly without the need for manual pushing, greatly reducing the labor intensity of workers when using the grinding machine.

[0013] Preferably, thrust bearings are fixedly installed on the outer surfaces of both ends of the transmission lifting rod, and the outer surfaces of the thrust bearings are respectively in contact with the outer surfaces of the upper grinding disc and the movable mounting plate. A disc protrusion is provided on the side of the transmission lifting rod near the movable mounting plate, and the outer surface of the movable mounting plate is not in contact with the disc protrusion of the transmission lifting rod.

[0014] By adopting the above technical solution, the friction between the upper and lower grinding discs can be reduced by setting the thrust bearing, allowing the lower and upper grinding discs to rotate more smoothly. The disc protrusion on the outer surface of the transmission lifting rod can concentrate the force on the moving mounting plate when the transmission lifting rod pushes the upper grinding disc, instead of the geared motor bearing the force, thus reducing the probability of damage to the geared motor due to the weight pressing down and ensuring the service life of the geared motor.

[0015] Preferably, a shim is placed on the outer surface of the lower grinding disc cone, and the outer surface of the shim is in contact with the outer surface of the thrust bearing; a material brush is engaged on the side surface of the upper grinding disc, and the outer surface of the material brush is in contact with the outer surface of the lower grinding disc; and a storage drawer is slidably mounted on the outer surface of the mounting bracket.

[0016] By adopting the above technical solution, the gap between the lower and upper grinding discs can be adjusted by setting shims, so that the particle size can be adjusted during grinding. By changing shims of different thicknesses, glutinous rice flour of different particle sizes can be obtained. At the same time, the storage drawer can store shims and material brushes of different models for easy replacement and use. The material brush can clean the glutinous rice flour that runs out during grinding as the upper grinding disc rotates, so that the glutinous rice flour can be discharged out through the discharge port of the lower grinding disc.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the grinding device for processing glutinous rice flour:

[0018] 1. The glutinous rice to be ground can be fed into the feeding cylinder without accumulating on the outer surface of the upper grinding disc. As the upper grinding disc rotates, the feeding cylinder moves along with it, causing the spring contact rod to pass through the limiting rod. When the spring contact rod contacts the limiting rod, it will rise and move the stopper, allowing the stopper to separate from the feed inlet of the upper grinding disc. This allows the glutinous rice in the feeding cylinder to be discharged intermittently. By adjusting the height of the limiting rod, the opening time and degree of the stopper can be adjusted, allowing the glutinous rice to be discharged automatically and intermittently in a measured amount. This prevents uneven grinding of particles due to uneven feeding between the lower and upper grinding discs, lowering the barrier to entry for use and reducing the labor intensity during operation.

[0019] 2. The start of the displacement motor will drive the worm gear to rotate, causing the worm wheel meshing with the worm gear to rotate as well. This allows the screws on both sides to rotate synchronously, driving the movable mounting plate to move and rise. The movable mounting plate can then push the transmission lifting rod and lift the upper grinding disc, making it easy to clean the interior of the upper and lower grinding discs after grinding. At the same time, the self-locking property of the worm wheel and worm gear prevents the upper grinding disc from accidentally falling and causing danger during cleaning, reducing the labor intensity of workers and improving the safety of cleaning.

[0020] 3. The thrust bearing improves the smoothness of rotation between the lower and upper grinding discs. Adding or replacing shims adjusts the gap between them, allowing for adjustment of the grinding coarseness. Simultaneously, the disc-shaped protrusion on the outer surface of the transmission lifting rod prevents the force exerted on the geared motor shaft when lifting the upper grinding disc, thus preventing excessive force on the motor and extending its lifespan. Improving the smoothness of rotation between the lower and upper grinding discs also allows for adjustment of the grinding particle size. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the mounting frame and lower grinding disc of this utility model;

[0022] Figure 2 This is a three-dimensional structural diagram of the material feeding cylinder and the limiting rod of this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of the geared motor and transmission lifting rod of this utility model;

[0024] Figure 4 This is a cross-sectional perspective view of the lower and upper grinding discs of this utility model.

[0025] Figure 5 This is a three-dimensional structural diagram of the worm gear and worm of this utility model;

[0026] Figure 6 This is an exploded three-dimensional schematic diagram of the structural gasket and thrust bearing of this utility model.

[0027] In the diagram: 1. Mounting frame; 2. Lower grinding disc; 3. Upper grinding disc; 4. Gear motor; 5. Transmission lifting rod; 6. Discharge cylinder; 7. Movable mounting plate; 8. Screw; 9. Worm gear; 10. Displacement motor; 11. Worm gear; 12. Limiting rod; 13. Spring contact rod; 14. Plug; 15. Moving rod; 16. Material brush; 17. Gasket; 18. Storage drawer; 19. Thrust bearing. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-6 This utility model provides a technical solution: a grinding device for processing glutinous rice flour, including a mounting frame 1. A lower grinding disc 2 is fixedly mounted on the outer surface of the mounting frame 1, and the discharge port of the lower grinding disc 2 extends out of one side of the mounting frame 1. An upper grinding disc 3 is rotatably mounted on the outer surface of the lower grinding disc 2, and the upper grinding disc 3 is in contact with the outer surface of the lower grinding disc 2. A truncated cone is provided at the center of the lower grinding disc 2. A feed port is provided on the outer surface of the upper grinding disc 3. A feeding cylinder 6 is fixedly mounted on the outer surface of the upper grinding disc 3, and the interior of the feeding cylinder 6 is inclined. The interior of the feeding cylinder 6 is connected to the feed port of the upper grinding disc 3. An elastic actuating mechanism is provided between the feeding cylinder 6 and the mounting frame 1.

[0030] The cone-shaped structure at the center of the lower grinding disc 2 effectively prevents powder or water from leaking out from the shaft of the lower grinding disc 2 during grinding, ensuring cleanliness under the mounting bracket 1 and reducing waste of material during grinding. The feeding cylinder 6 allows the user to pour in all the glutinous rice to be ground at once, preventing the glutinous rice from accumulating on the outer surface of the upper grinding disc 3. The inclined design of the feeding cylinder 6 also makes it easier for the glutinous rice inside the feeding cylinder 6 to move to the feed inlet of the upper grinding disc 3, reducing the labor intensity of the user when adding materials.

[0031] The elastic actuation mechanism includes: a limiting rod 12, which is slidably mounted on the outer surface of the mounting frame 1 and fixed to the mounting frame 1 with screws. One end of the limiting rod 12 is inclined. A spring contact rod 13 is slidably mounted on the outer surface of the feeding cylinder 6. A plug 14 is fixedly mounted on the end of the spring contact rod 13 near the upper grinding disc 3. The outer surface of the plug 14 is tapered and fits against the feed port of the upper grinding disc 3.

[0032] When the feeding cylinder 6 rotates together with the upper grinding disc 3, the spring contact rod 13 will pass through the limiting rod 12. The inclined design of the limiting rod 12 allows the spring contact rod 13 to be raised when it passes through, so that the spring contact rod 13 can drive the stopper 14 to rise and move together, so that the discharge port of the upper grinding disc 3 can be separated from the stopper 14. The conical design of the stopper 14 makes it easier for glutinous rice to be discharged from the feeding cylinder 6, so that the stopper 14 can open intermittently to discharge material. By adjusting the height of the limiting rod 12, the opening time and the size of the opening and closing of the stopper 14 can be controlled, so that glutinous rice can be discharged intermittently in a quantitative manner. This reduces the difficulty of adding glutinous rice when using the lower grinding disc 2 and the upper grinding disc 3, and allows glutinous rice to be discharged from the feeding cylinder 6 in a quantitative and intermittent manner. This allows the lower grinding disc 2 and the upper grinding disc 3 to continuously grind glutinous rice, ensuring that the fineness of the ground glutinous rice powder is consistent, while reducing the labor intensity and usage requirements of the operator.

[0033] The outer surface of the limiting rod 12 is uniformly provided with grooves, and the outer surface of the limiting rod 12 is in contact with the outer surface of the spring contact rod 13. The stirring rod 15 is fixedly installed on the outer surface of the spring contact rod 13, and the outer surface of the stirring rod 15 is not in contact with the outer surface of the discharge cylinder 6. The discharge cylinder 6 is engaged with the spring contact rod 13.

[0034] The groove on the outer surface of the limiting rod 12 allows the spring contact rod 13 to bounce up and down as it passes through the limiting rod 12. The bouncing of the spring contact rod 13 allows the stirring rod 15 to move continuously. The movement of the stirring rod 15 agitates the glutinous rice inside the feeding cylinder 6, preventing the glutinous rice from accumulating inside the feeding cylinder 6. This ensures that a sufficient amount of glutinous rice can be discharged each time the stopper 14 is opened, guaranteeing the amount of rice fed each time.

[0035] A screw 8 is rotatably mounted on the outer surface of the mounting bracket 1, and a movable mounting plate 7 is threadedly mounted on the outer surface of the screw 8. A threaded engagement mechanism is provided between the movable mounting plate 7 and the mounting bracket 1. The threaded engagement mechanism includes a worm gear 9, which is fixedly mounted on the outer surface of the screw 8. A worm 11 is rotatably mounted inside the mounting bracket 1 and meshes with the worm gear 9. A displacement motor 10 is fixedly mounted on the outer surface of the mounting bracket 1 and is connected to the worm 11.

[0036] The rotation of the displacement motor 10 drives the worm gear 11 to rotate, allowing the worm wheel 9, which meshes with the worm gear 11, to rotate as well. This enables the screw 8 to drive the movable mounting plate 7 to rise stably and synchronously. Simultaneously, the self-locking property of the worm wheel 9 and the worm gear 11 prevents the movable mounting plate 7 from automatically falling after it moves the transmission lifting rod 5 and lifts the upper grinding disc 3. This allows the lower grinding disc 2 and the upper grinding disc 3 to be separated, facilitating cleaning and tidying of both discs. It also improves safety during use and reduces the labor intensity of moving and cleaning the upper grinding disc 3.

[0037] A transmission lifting rod 5 is rotatably mounted on the outer surface of the movable mounting plate 7. The end of the transmission lifting rod 5 away from the screw 8 has a spline design. The end of the transmission lifting rod 5 away from the worm gear 9 is inserted into the upper grinding plate 3. The transmission lifting rod 5 passes through the lower grinding plate 2. The lower grinding plate 2, the upper grinding plate 3 and the transmission lifting rod 5 are concentrically designed. A reduction motor 4 is fixedly mounted on the outer surface of the movable mounting plate 7. The output end of the reduction motor 4 is connected to the transmission lifting rod 5.

[0038] By using the spline design of the transmission lifting rod 5, when the geared motor 4 drives the transmission lifting rod 5 to rotate, the upper grinding disc 3 can rotate along with it. The upper grinding disc 3 is rotated by the geared motor 4 to grind the glutinous rice, so that the user does not need to rotate the upper grinding disc 3 when grinding, thus saving the user's labor intensity when grinding glutinous rice flour.

[0039] Thrust bearings 19 are fixedly installed on the outer surfaces of both ends of the transmission lifting rod 5, and the outer surfaces of the thrust bearings 19 are respectively in contact with the outer surfaces of the upper grinding disc 3 and the movable mounting plate 7. A disc protrusion is provided on the side of the transmission lifting rod 5 near the movable mounting plate 7, and the outer surface of the movable mounting plate 7 is not in contact with the disc protrusion of the transmission lifting rod 5.

[0040] The design of the thrust bearing 19 can improve the smoothness of the rotation of the lower grinding disc 2 and the upper grinding disc 3, making it easier for the upper grinding disc 3 to rotate on the lower grinding disc 2. At the same time, by inserting shims 17 of different sizes, the gap between the lower grinding disc 2 and the upper grinding disc 3 can be adjusted, allowing the particle roughness during grinding to be adjusted.

[0041] A shim 17 is placed on the outer surface of the cone of the lower grinding disc 2, and the outer surface of the shim 17 is in contact with the outer surface of the thrust bearing 19. A material brush 16 is fitted on the side surface of the upper grinding disc 3, and the outer surface of the material brush 16 is in contact with the outer surface of the lower grinding disc 2. A storage drawer 18 is slidably installed on the outer surface of the mounting bracket 1.

[0042] Different sized pads 17 can be stored in the storage drawer 18, and spare material brushes 16 can be stored for easy access when replacing material brushes 16 and pads 17. At the same time, after the glutinous rice flour is ground, the rotation of the upper grinding disc 3 drives the material brush 16 to rotate, so that the material brush 16 can sweep away the glutinous rice flour and allow the glutinous rice flour to be discharged from the outlet of the lower grinding disc 2.

[0043] The disc protrusion designed on the outer surface of the transmission lifting rod 5 allows the force of the upper grinding disc 3 being lifted to act on the movable mounting plate 7, rather than directly on the reduction motor 4. This reduces the damage to the reduction motor 4 caused by excessive weight when the upper grinding disc 3 is lifted, and extends the service life of the reduction motor 4.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding device for processing glutinous rice flour, comprising a mounting frame (1), wherein a lower grinding disc (2) is fixedly mounted on the outer surface of the mounting frame (1), and the discharge port of the lower grinding disc (2) extends out of one side of the mounting frame (1); an upper grinding disc (3) is rotatably mounted on the outer surface of the lower grinding disc (2), and the upper grinding disc (3) is in contact with the outer surface of the lower grinding disc (2); a truncated cone is provided at the center of the lower grinding disc (2); and a feed port is provided on the outer surface of the upper grinding disc (3), characterized in that: The outer surface of the upper grinding disc (3) is fixedly installed with a feeding cylinder (6), and the inside of the feeding cylinder (6) is designed to be inclined. The inside of the feeding cylinder (6) is connected to the feed inlet of the upper grinding disc (3). An elastic actuation mechanism is provided between the feeding cylinder (6) and the mounting frame (1).

2. The grinding device for processing glutinous rice flour according to claim 1, characterized in that: The elastic actuation mechanism includes: a limiting rod (12), which is slidably mounted on the outer surface of the mounting frame (1), and the mounting frame (1) and the limiting rod (12) are fixed together by screws. One end of the limiting rod (12) is inclined. A spring contact rod (13) is slidably mounted on the outer surface of the feeding cylinder (6), and a plug (14) is fixedly mounted on the end of the spring contact rod (13) near the upper grinding disc (3). The outer surface of the plug (14) is tapered, and the plug (14) fits against the feed port of the upper grinding disc (3).

3. The grinding device for processing glutinous rice flour according to claim 2, characterized in that: The outer surface of the limiting rod (12) is uniformly provided with grooves, and the outer surface of the limiting rod (12) is in contact with the outer surface of the spring contact rod (13). The outer surface of the spring contact rod (13) is fixedly installed with a stirring rod (15), and the outer surface of the stirring rod (15) is not in contact with the outer surface of the discharge cylinder (6). The discharge cylinder (6) is engaged with the spring contact rod (13).

4. The grinding device for processing glutinous rice flour according to claim 1, characterized in that: A screw (8) is rotatably mounted on the outer surface of the mounting bracket (1), and a movable mounting plate (7) is threadedly mounted on the outer surface of the screw (8). A threaded engagement mechanism is provided between the movable mounting plate (7) and the mounting bracket (1). The threaded engagement mechanism includes a worm gear (9), which is fixedly mounted on the outer surface of the screw (8). A worm (11) is rotatably mounted inside the mounting bracket (1), and the worm (11) meshes with the worm gear (9). A displacement motor (10) is fixedly mounted on the outer surface of the mounting bracket (1), and the displacement motor (10) is connected to the worm (11).

5. The grinding device for processing glutinous rice flour according to claim 4, characterized in that: The outer surface of the movable mounting plate (7) is rotatably mounted with a transmission lifting rod (5), and the end of the transmission lifting rod (5) away from the screw (8) is designed with a spline. The end of the transmission lifting rod (5) away from the worm gear (9) is inserted into the upper grinding disc (3). The transmission lifting rod (5) passes through the lower grinding disc (2), and the lower grinding disc (2), the upper grinding disc (3) and the transmission lifting rod (5) are designed concentrically. The outer surface of the movable mounting plate (7) is fixedly mounted with a reduction motor (4), and the output end of the reduction motor (4) is connected to the transmission lifting rod (5).

6. The grinding device for processing glutinous rice flour according to claim 5, characterized in that: The outer surfaces of both ends of the transmission lifting rod (5) are fixedly mounted with thrust bearings (19), and the outer surfaces of the thrust bearings (19) are respectively in contact with the outer surfaces of the upper grinding disc (3) and the movable mounting plate (7). The transmission lifting rod (5) has a disc protrusion on the side close to the movable mounting plate (7), and the outer surface of the movable mounting plate (7) is not in contact with the disc protrusion of the transmission lifting rod (5).

7. The grinding device for processing glutinous rice flour according to claim 1, characterized in that: A shim (17) is placed on the outer surface of the cone of the lower grinding disc (2), and the outer surface of the shim (17) is in contact with the outer surface of the thrust bearing (19). A material brush (16) is fitted on the side surface of the upper grinding disc (3), and the outer surface of the material brush (16) is in contact with the outer surface of the lower grinding disc (2). A storage drawer (18) is slidably installed on the outer surface of the mounting bracket (1).

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