Grinding device for food processing

Abstract

The utility model relates to the technical field of food grinding, in particular to a grinding device for food processing, which comprises a grinding box, a crushing component, a lifting device and a grinding component, the crushing component comprises a first rotary driving part mounted at the top of the grinding box, and the output end of the first rotary driving part is connected with a rotating shaft; the grinding assembly comprises a grinding shell capable of moving in the grinding box and further comprises a grinding roller fixed to the bottom end of the rotating shaft, and the grinding roller is rotationally arranged in the grinding shell. According to the utility model, the grinding shell is flexibly adjusted in the vertical direction. When the grinding shell moves, the gap between the grinding shell and the grinding roller can be changed along with the movement of the grinding shell, so that different grinding requirements can be easily adjusted and met, and food with different particle sizes can be produced.

Description

Technical Field

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

[0002] Food grinding aims to process ingredients or food raw materials to a specific particle size or shape to facilitate subsequent processing, mixing, packaging, and consumption. Currently, grinding devices commonly use rotating grinding rollers to grind food. However, this method is time-consuming for larger food raw materials.

[0003] Chinese patent CN118002286B discloses a raw material grinding device for processing health food, which includes a crushing chamber and a grinding chamber. The crushing chamber is fixedly installed on top of the grinding chamber and the two are interconnected. The crushing chamber contains crushing blades for cutting and crushing the raw materials of health food. This patent uses a drive mechanism to drive grinding balls to rotate within the grinding chamber, thereby achieving the grinding of the food.

[0004] Nevertheless, this existing technology still has limitations. Specifically, because the gap size between the grinding balls and the grinding jar is fixed, the grinding device can only accommodate grinding requirements of one particle size, thus limiting its application range. Utility Model Content

[0005] The purpose of this invention is to provide a grinding device for food processing, which allows for flexible adjustment of the grinding shell in the vertical direction. As the grinding shell moves, the gap between the grinding shell and the grinding roller changes accordingly, easily adjusting to adapt to different grinding needs and thus producing food products with different particle sizes.

[0006] To address the problems of existing technologies, this utility model provides a grinding device for food processing, including a grinding box, a crushing component, a lifting device, and a grinding assembly. The crushing component includes a first rotary drive installed on the top of the grinding box, and the output end of the first rotary drive is connected to a rotary shaft. The grinding assembly includes a grinding shell that can move inside the grinding box, and the grinding assembly also includes a grinding roller fixed to the bottom end of the rotary shaft, the grinding roller being rotatably disposed in the grinding shell.

[0007] Preferably, a gap is formed between the grinding shell and the grinding roller to allow food to pass through, and the size of the gap gradually decreases from top to bottom, and the grinding shell and the grinding roller rotate in opposite directions.

[0008] Preferably, the grinding assembly includes a first gear sleeved on the grinding shell, and the grinding assembly also includes a third rotary drive member, the output end of which is connected to a second gear, and the second gear meshes with the first gear.

[0009] Preferably, the lifting device includes a support frame, and a plurality of limiting wheels are fixed inside the support frame. The grinding shell is also provided with a ring rail that cooperates with the limiting wheels near its bottom.

[0010] Preferably, the lifting device includes a second rotary drive component, the output end of which is connected to a lead screw, which is threadedly engaged with the support frame, and the second rotary drive component is mounted on the support legs of the grinding box.

[0011] Preferably, the rotating shaft is provided with a plurality of pulverizing blades for pulverizing food.

[0012] Preferably, the grinding box is divided into a crushing chamber and a grinding chamber. The grinding box is equipped with a sieving device, which includes a screen for separating the crushing chamber and the grinding chamber. Several connecting frames are evenly distributed at the bottom of the screen. Connecting rods are connected to the connecting frames. A ball is rotatably mounted at the bottom of the connecting rod. The sieving device also includes a turntable fixed on a rotating shaft. The turntable has protrusions corresponding to the connecting rods, and the ball can rotate on the protrusions.

[0013] Preferably, the screening device includes a support block fixed inside the grinding box, and the screening device also includes a slide rod disposed at the bottom of the screen. The slide rod is slidably engaged with the support block, and a spring is sleeved on the outside of the slide rod. One end of the spring is connected to the support block, and the other end of the spring is connected to the bottom of the screen.

[0014] The advantages of this utility model compared to the prior art are:

[0015] 1. This application incorporates a lifting device, which comprises a second rotary drive component and a lead screw. The support frame and the lead screw are connected via a threaded connection. When the second rotary drive component drives the lead screw to rotate, the screw's helical motion is converted into the vertical linear movement of the support frame, thereby causing the grinding shell to move up and down. This allows for flexible adjustment of the gap between the grinding shell and the grinding roller, thus meeting the processing requirements of foods with different particle sizes.

[0016] 2. This application also includes a grinding mechanism consisting of a grinding shell and a grinding roller. By activating the third rotary drive, the second gear can be driven to rotate, which in turn causes the first gear and the grinding shell to rotate through gear transmission. The grinding shell and the grinding roller rotate in opposite directions. This design effectively improves the grinding efficiency of food, ensuring that the food achieves the desired grinding effect in a short time.

[0017] 3. This application incorporates a screening device, which consists of a turntable and a screen fixed on a rotating shaft. When the rotating shaft rotates, the turntable and its protrusions rotate accordingly. During this process, the screen moves up and down reciprocally through contact between rolling balls and the protrusions and the turntable, thereby screening the food. This design not only improves screening efficiency but also effectively avoids food clogging the screen holes, ensuring the smooth progress of the screening process. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a grinding device for food processing according to this utility model.

[0019] Figure 2 This is an exploded structural diagram of a grinding device for food processing according to this utility model.

[0020] Figure 3 This is a schematic diagram of the crushing component and sieving device of a grinding device for food processing according to this utility model.

[0021] Figure 4 This is a schematic diagram of the grinding component structure of a grinding device for food processing according to this utility model.

[0022] Figure 5 This utility model relates to a grinding device for food processing. Figure 3 Enlarged structural diagram at point A in the middle.

[0023] Figure 6 This is a cross-sectional structural diagram of a grinding device for food processing according to this utility model.

[0024] The following are the labels in the diagram: 1. Grinding box; 11. Crushing assembly; 111. First rotary drive component; 112. Rotary shaft; 113. Crushing blade; 12. Lifting device; 121. Second rotary drive component; 122. Lead screw; 123. Support frame; 124. Limiting wheel; 13. Grinding assembly; 131. Third rotary drive component; 132. Grinding shell; 133. First gear; 134. Second gear; 135. Grinding roller; 14. Screening device; 141. Turntable; 1411. Protrusion; 142. Screen; 1421. Connecting frame; 1422. Connecting rod; 1423. Ball; 1424. Slide rod; 1425. Spring; 143. Support block. Detailed Implementation

[0025] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0026] Reference Figures 1-6As shown, this utility model provides a grinding device for food processing, including a grinding box 1, a crushing component 11, a lifting device 12, and a grinding component 13. The crushing component 11 includes a first rotary drive 111 mounted on the top of the grinding box 1. The output end of the first rotary drive 111 is connected to a rotating shaft 112, and the rotating shaft 112 is equipped with a plurality of crushing blades 113 for crushing food. The first rotary drive 111 serves as the power source for the crushing component 11, and its activation drives the rotating shaft 112 to rotate. The first rotary drive 111 can be a motor, a reducer, or other rotatable mechanism. The grinding component 13 includes a grinding shell 132 that can move inside the grinding box 1, and a grinding roller 135 fixed to the bottom end of the rotating shaft 112. The grinding roller 135 is rotatably disposed within the grinding shell 132. A gap is formed between the grinding shell 132 and the grinding roller 135 to allow food to pass through, and the size of the gap gradually decreases from top to bottom. The grinding shell 132 and the grinding roller 135 rotate in opposite directions. The grinding shell 132 is designed with a surface shape that matches the grinding roller 135 to ensure that the food can be effectively ground when passing through the gap. At the same time, the up and down movement of the grinding shell 132 is used to adjust the grinding position or adapt to different grinding needs.

[0027] refer to Figures 1-4 As shown, the grinding assembly 13 includes a first gear 133 sleeved on the grinding shell 132. The grinding assembly 13 also includes a third rotary drive 131, the output end of which is connected to a second gear 134, which meshes with the first gear 133. When the third rotary drive 131 is activated, its output end drives the second gear 134 to rotate. Because the second gear 134 meshes with the first gear 133, the first gear 133 also rotates. This causes the grinding shell 132 to rotate. During the grinding process, food passing through the gap between the grinding shell 132 and the grinding roller 135 is ground and refined or pulverized. Simultaneously, because the grinding shell 132 and the grinding roller 135 rotate in opposite directions, this relative motion helps to enhance the grinding effect.

[0028] The lifting device 12 includes a support frame 123, and a number of limiting wheels 124 are fixed inside the support frame 123. The grinding shell 132 is also provided with a ring rail that cooperates with the limiting wheels 124 near its bottom.

[0029] In use, by activating the third rotary drive 131, the second gear 134 can be driven to rotate, which in turn causes the first gear 133 and the grinding shell 132 to rotate through gear transmission. The grinding shell 132 rotates in the opposite direction to the grinding roller 135. This design can effectively improve the grinding efficiency of food and ensure that the food achieves the ideal grinding effect in a short time.

[0030] The lifting device 12 includes a second rotary drive 121. The output end of the second rotary drive 121 is connected to a lead screw 122. The lead screw 122 is threadedly engaged with the support frame 123. The second rotary drive 121 is mounted on the support leg of the grinding box 1.

[0031] In use, when the second rotary drive 121 drives the lead screw 122 to rotate, the helical motion of the lead screw 122 is converted into the vertical linear movement of the support frame 123, which in turn drives the grinding shell 132 to move up and down. This allows the gap between the grinding shell 132 and the grinding roller 135 to be flexibly adjusted, thereby meeting the processing needs of foods with different particle sizes.

[0032] refer to Figure 5 and Figure 6 As shown, the grinding chamber 1 is divided into a crushing chamber and a grinding chamber. A sieving device 14 is provided inside the grinding chamber 1. The sieving device 14 includes a screen 142 for separating the crushing chamber and the grinding chamber. Several connecting frames 1421 are evenly distributed at the bottom of the screen 142. A connecting rod 1422 is connected to the connecting frame 1421. A ball 1423 is rotatably disposed at the bottom end of the connecting rod 1422. The sieving device 14 also includes a turntable 141 fixed on the rotating shaft 112. The turntable 141 has protrusions 1411 distributed on it, corresponding to the connecting rod 1422. The ball 1423 can rotate on the protrusions 1411.

[0033] The screening device 14 includes a support block 143 fixed inside the grinding box 1. The screening device 14 also includes a slide rod 1424 disposed at the bottom of the screen 142. The slide rod 1424 is slidably engaged with the support block 143. A spring 1425 is sleeved on the outside of the slide rod 1424. One end of the spring 1425 is connected to the support block 143, and the other end of the spring 1425 is connected to the bottom of the screen 142.

[0034] In use, the screen 142 moves up and down reciprocally through the contact between the rolling ball 1423, the protrusion 1411, and the turntable 141, thereby screening the food. This design not only improves screening efficiency but also effectively avoids the problem of food clogging the screen holes, ensuring the smooth progress of the screening process.

[0035] Working Principle: First, the food to be processed is poured into the grinding chamber 1. Then, the first rotary drive 111 is activated, causing the rotating shaft 112 to rotate. The rotation of the rotating shaft 112 drives the pulverizing blade 113 to rotate as well, thus performing preliminary crushing of the food. Simultaneously, the rotation of the rotating shaft 112 also drives the turntable 141 to rotate, and the protrusions 1411 on the turntable 141 rotate accordingly. When the ball 1423 moves to the top of the protrusion 1411, the screen 142 is pushed upwards; and when the ball 1423 moves to the flat part of the turntable 141, the screen 142 moves downwards due to gravity. This up-and-down reciprocating motion of the screen 142 not only helps to sieve the food but also effectively prevents food from clogging the screen holes. The sieved food enters the grinding chamber. At this time, the third rotary drive 131 is activated, causing the second gear 134 to rotate. The rotation of the second gear 134 causes the first gear 133 and the grinding shell 132 to rotate. The grinding shell 132 rotates in the opposite direction to the grinding roller 135. This design significantly improves the grinding speed of food, ensuring that the food achieves the desired grinding effect in a short time. To produce food with different particle sizes, the gap between the grinding shell 132 and the grinding roller 135 can be adjusted by activating the second rotary drive 121. Activating the second rotary drive 121 causes the lead screw 122 to rotate, which in turn drives the support frame 123 and the grinding shell 132 to move up and down through the threaded engagement. By adjusting the position of the grinding shell 132, the size of the gap between it and the grinding roller 135 can be changed, thereby meeting the processing requirements of food with different particle sizes.

[0036] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A grinding device for food processing, characterized by: The application relates to a food grinder, which comprises a grinding box (1), a crushing assembly (11), a lifting device (12) and a grinding assembly (13), wherein the crushing assembly (11) comprises a first rotary driving element (111) installed on the top of the grinding box (1), the output end of the first rotary driving element (111) is connected with a rotary shaft (112), the grinding assembly (13) comprises a grinding shell (132) capable of moving in the grinding box (1), the grinding assembly (13) further comprises a grinding roller (135) fixed at the bottom end of the rotary shaft (112), the grinding roller (135) is rotatably arranged in the grinding shell (132), the grinding box (1) is internally divided into a crushing cavity and a grinding cavity, a screening device (14) is arranged in the grinding box (1), the screening device (14) comprises a screen mesh (142) for separating the crushing cavity and the grinding cavity, a plurality of connecting frames (1421) are uniformly distributed at the bottom of the screen mesh (142), connecting rods (1422) are connected to the connecting frames (1421), rolling balls (1423) are rotatably arranged at the bottom end of the connecting rods (1422), the screening device (14) further comprises a rotating disc (141) fixed on the rotary shaft (112), the rotating disc (141) is provided with protrusions (1411) corresponding to the connecting rods (1422), and the rolling balls (1423) can rotate on the protrusions (1411).

2. A grinding device for food processing according to claim 1, characterized in that: The grinding shell (132) and the grinding roller (135) form a gap for food passing through, and the size of the gap gradually decreases from top to bottom, and the rotating directions of the grinding shell (132) and the grinding roller (135) are opposite.

3. A grinding device for food processing according to claim 1, characterized in that: The grinding assembly (13) comprises a first gear (133) sleeved on the grinding shell (132), and the grinding assembly (13) further comprises a third rotary driving element (131), the output end of the third rotary driving element (131) is connected with a second gear (134), and the second gear (134) and the first gear (133) are in meshing connection.

4. A grinding device for food processing according to claim 1, characterized in that: The lifting device (12) comprises a supporting frame (123), a plurality of limiting wheels (124) are fixed in the supporting frame (123), and the grinding shell (132) is further provided with a ring rail matched with the limiting wheels (124) at a position close to the bottom of the grinding shell (132).

5. A grinding device for food processing according to claim 4, characterized in that: The lifting device (12) comprises a second rotary driving element (121), the output end of the second rotary driving element (121) is connected with a lead screw (122), the lead screw (122) is in screw thread cooperation with the supporting frame (123), and the second rotary driving element (121) is installed on the supporting leg of the grinding box (1).

6. A grinding device for food processing according to claim 1, characterized in that: A plurality of crushing knives (113) for crushing food are arranged on the rotary shaft (112).

7. A grinding device for food processing according to claim 1, characterized in that: The screening device (14) comprises a supporting block (143) fixed in the interior of the grinding box (1), and further comprises a sliding rod (1424) arranged at the bottom of the screen (142), the sliding rod (1424) is in sliding fit with the supporting block (143), and the outer portion of the sliding rod (1424) is sleeved with a spring (1425), one end of the spring (1425) is connected with the supporting block (143), and the other end of the spring (1425) is connected with the bottom of the screen (142).

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