Energy-saving food raw material grinding device

Abstract

The invention relates to the technical field of food processing equipment, in particular to an energy-saving food raw material grinding device which comprises a machine body and two grinding rollers, a grinding cavity is formed in the machine body, rotating openings are symmetrically formed in the surface of the machine body, and rotating shafts are horizontally and rotationally mounted in the two rotating openings; a mounting groove is formed in one end of each grinding roller, a rotating disc is rotationally mounted at a groove opening of each mounting groove, the two grinding rollers are fixedly connected to two rotating shafts in a sleeving mode respectively, and the two rotating shafts are controlled by a driving assembly to rotate relatively; a water tank is fixedly mounted on the surface of the machine body, mounting rods are symmetrically and fixedly mounted on the surface of the machine body, a sliding groove is formed in one end of each mounting rod, a sliding rod is slidably and hermetically inserted into each sliding groove, and a spiral circulating pipe is arranged in each mounting groove. And water in the water tank can be intermittently introduced into the circulating pipe and then flows back into the water tank, so that the grinding roller is effectively cooled.

Description

Technical Field

[0001] The present invention relates to the technical field of food processing equipment, and particularly relates to an energy-saving food raw material grinding device. Background Art

[0002] In the food processing industry, the grinding of food raw materials is a common and important processing procedure. Traditional food raw material grinding devices usually adopt a single high-speed rotation grinding method, and grind food raw materials through two relatively rotating grinding rollers.

[0003] During the grinding process of food raw materials, a large amount of heat is generated by the high-speed operation of the grinding rollers and the friction with food raw materials. The accumulation of heat and the increase in temperature will cause the food raw materials to deteriorate, affect the food quality, change the material properties of the grinding rollers, reduce the grinding effect and the equipment life, and also cause equipment failures, increase the maintenance cost, prolong the downtime, and lead to a decrease in production efficiency. Summary of the Invention

[0004] The purpose of the present invention is to solve the following disadvantages in the prior art: during the grinding process of food raw materials, a large amount of heat is generated by the high-speed operation of the grinding rollers and the friction with food raw materials. The accumulation of heat and the increase in temperature will cause the food raw materials to deteriorate, affect the food quality, change the material properties of the grinding rollers, reduce the grinding effect and the equipment life, and also cause equipment failures, increase the maintenance cost, prolong the downtime, and lead to a decrease in production efficiency. Therefore, an energy-saving food raw material grinding device is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical scheme:

[0006] An energy-saving food raw material grinding device includes a machine body and two grinding rollers. A grinding cavity is provided in the machine body. Rotation ports are symmetrically provided on the surface of the machine body. Rotating shafts are horizontally rotatably installed in the two rotation ports. An installation groove is provided at one end of the grinding roller. A rotating disk is rotatably installed at the notch of the installation groove. The rotating disk is rotatably sleeved on the rotating shaft. The two grinding rollers are respectively fixedly sleeved on the two rotating shafts. The two rotating shafts are controlled to rotate relatively by a driving component;

[0007] A water tank is fixedly installed on the surface of the machine body. Installation rods are symmetrically fixedly installed on the surface of the machine body. A sliding groove is provided at one end of the installation rod. A sliding rod is slidably and sealingly inserted in the sliding groove. A spiral circulation pipe is provided in the installation groove. A water outlet pipe is fixedly installed at one end of the installation rod. One ends of the two water outlet pipes are respectively fixedly communicated with one ends of the two circulation pipes. The end of the circulation pipe far from the water outlet pipe penetrates the machine body and is fixedly communicated with the water tank. A water inlet pipe communicated with the water tank is fixedly installed on the surface of the installation rod. One-way valves are provided in both the water inlet pipe and the water outlet pipe. The two sliding rods are controlled to move horizontally back and forth by a threaded component.

[0008] Preferably, a feed hopper communicating with the grinding chamber is fixedly installed on the upper surface of the machine body. A screening chamber communicating with the grinding chamber is provided inside the machine body. An outlet is provided at the bottom of the machine body. A plurality of screening openings communicating with the outlet are circumferentially provided at the bottom of the screening chamber.

[0009] Preferably, the driving assembly includes an energy-saving motor and two meshing gears. An L-shaped plate is fixedly installed on the surface of the machine body. The energy-saving motor is fixedly installed on the surface of the L-shaped plate, and a connecting rod is fixedly installed on the output shaft of the energy-saving motor. One end of each of the two rotating shafts passes through the machine body, and the two gears are respectively fixedly sleeved on the ends of the two rotating shafts passing through the machine body. The connecting rod is fixedly connected to one of the rotating shafts.

[0010] Preferably, the threaded member includes a reciprocating screw rod fixedly installed at the end of one of the rotating shafts and an L-shaped sliding plate threadedly sleeved on the reciprocating screw rod. The sliding plate is fixedly connected to two sliding rods.

[0011] Preferably, guide plates are symmetrically and fixedly installed in the grinding chamber. The two guide plates are inclined and guide the material to flow towards the two grinding rollers below.

[0012] Preferably, rectangular frames are fixedly installed on the left and right chamber walls of the grinding chamber. A spring rod is horizontally fixedly installed in the rectangular frame. A through opening is provided on the surface of the rectangular frame close to the grinding roller. One end of the spring rod passes through the through opening and is fixedly installed with a scraping block having a triangular cross-section through a connecting rod. The two spring rods are controlled to expand and contract through a pressing member.

[0013] Preferably, the pressing member includes a U-shaped pressing plate and two inclined plates. A reciprocating thread is provided on the surface of the connecting rod. The pressing plate is threadedly sleeved on the connecting rod. Through openings respectively communicating with the interiors of the two rectangular frames are symmetrically provided on the surface of the machine body. An installation block is fixedly sleeved on the free end of the spring rod. The two inclined plates are respectively fixedly connected to the two installation blocks and are symmetrically arranged. The two ends of the pressing plate respectively pass through the two through openings and are respectively in sliding contact with the inclined surfaces of the two inclined plates.

[0014] Preferably, a rotating rod is horizontally rotatably installed in the screening chamber. A plurality of turning plates are fixedly installed on the surface of the rotating rod in a circumferential manner. The surface of the turning plate away from the rotating rod is in sliding contact with the chamber wall of the screening chamber. One end of the rotating rod passes through the machine body. A transmission wheel is fixedly sleeved on each of the end of the reciprocating screw rod and the end of the rotating rod passing through the machine body. A transmission belt is sleeved on the two transmission wheels.

[0015] Preferably, an operation port communicating with the screening chamber is formed on the surface of the body. A baffle is rotatably installed in the operation port through a rotating shaft. A rotating groove is formed on the surface of the body. A round rod is horizontally rotatably installed in the rotating groove. A blocking block is fixedly sleeved on the round rod. The surface of the blocking block is in sliding contact with the surface of the baffle. A torsion spring is sleeved on the round rod. Two ends of the torsion spring are respectively fixedly connected with the groove wall of the rotating groove and the surface of the blocking block.

[0016] Preferably, a temperature sensor is arranged in the water tank, and a small air-conditioning type cooler electrically connected with the temperature sensor is arranged on the inner wall of the water tank.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. When the grinding roller grinds food raw materials, the water in the water tank can be intermittently introduced into the circulation pipe and then returned to the water tank, so as to effectively cool the grinding roller;

[0019] 2. The two scraping blocks will move relatively in a reciprocating manner under the action of the pressing component, so that the materials adhered to the grinding roller can be removed without affecting the grinding of the grinding roller, and the grinding quality is prevented from being affected by excessive material adhesion;

[0020] 3. The multiple turning plates can turn the raw materials falling into the screening chamber after grinding, and cooperate with the multiple screening openings to achieve the effect of screening raw materials. The qualified raw materials in size will pass through the screening openings and fall from the discharge port, while the unqualified raw materials in size cannot pass through the screening openings. After grinding, the baffle can be opened to collect the unqualified raw materials in size and subject them to secondary grinding;

[0021] 4. The rotation of the multiple turning plates, the introduction of water in the water tank into the circulation pipe, and the relative movement of the two scraping blocks do not require additional power driving devices, so no additional power cost will be generated, and the energy-saving effect can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. is a front three-dimensional structural schematic diagram of an energy-saving food raw material grinding device proposed by the present invention;

[0023] Figure 2 FIG. is a side three-dimensional structural schematic diagram of an energy-saving food raw material grinding device proposed by the present invention;

[0024] Figure 3 FIG. is a top three-dimensional structural schematic diagram of an energy-saving food raw material grinding device proposed by the present invention;

[0025] Figure 4 FIG. is a cross-sectional structural schematic diagram of an energy-saving food raw material grinding device proposed by the present invention;

[0026] Figure 5 It is a partial three - dimensional structure schematic diagram of the body in an energy - saving food raw material grinding device proposed by the present invention;

[0027] Figure 6 It is a partial three - dimensional structure schematic diagram of the round rod and the stopper in an energy - saving food raw material grinding device proposed by the present invention;

[0028] Figure 7 It is a partial three - dimensional cross - section structure schematic diagram of the rectangular frame in an energy - saving food raw material grinding device proposed by the present invention;

[0029] Figure 8 It is a three - dimensional structure schematic diagram of the abutting plate in an energy - saving food raw material grinding device proposed by the present invention;

[0030] Figure 9 It is a partial three - dimensional structure schematic diagram of two grinding rollers in an energy - saving food raw material grinding device proposed by the present invention;

[0031] Figure 10 It is a partial three - dimensional structure schematic diagram of the grinding roller in an energy - saving food raw material grinding device proposed by the present invention;

[0032] Figure 11 It is Figure 2 the enlarged structure schematic diagram at position A in;

[0033] Figure 12 It is Figure 3 the enlarged structure schematic diagram at position B in;

[0034] Figure 13 It is Figure 7 the enlarged structure schematic diagram at position C in.

[0035] In the figure: 1 body, 2 grinding chamber, 3 rotating shaft, 4 grinding roller, 5 feed hopper, 6 screening chamber, 7 discharge port, 8 screening material port, 9 installation groove, 10 water tank, 11 installation rod, 12 sliding rod, 13 circulation pipe, 14 water outlet pipe, 15 water inlet pipe, 16 energy - saving motor, 17 gear, 18 connecting rod, 19 reciprocating lead screw, 20 sliding plate, 21 guide plate, 22 rectangular frame, 23 spring rod, 24 scraping block, 25 abutting plate, 26 inclined plate, 27 rotating rod, 28 turning plate, 29 transmission wheel, 30 transmission belt, 31 operation port, 32 baffle, 33 round rod, 34 stopper, 35 torsion spring, 36 rotating disk. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0037] Reference Figures 1 - 13 , an energy-saving food raw material grinding device, including a machine body 1 and two grinding rollers 4. A grinding chamber 2 is provided in the machine body 1. A feed hopper 5 communicating with the grinding chamber 2 is fixedly installed on the upper surface of the machine body 1. A screening chamber 6 communicating with the grinding chamber 2 is provided in the machine body 1. A discharge port 7 is provided at the bottom of the machine body 1. A plurality of screening ports 8 all communicating with the discharge port 7 are circumferentially provided at the bottom of the screening chamber 6. Rotating ports are symmetrically provided on the surface of the machine body 1. A rotating shaft 3 is horizontally rotatably installed in each of the two rotating ports. An installation groove 9 is provided at one end of the grinding roller 4. A rotating disk 36 is rotatably installed at the notch of the installation groove 9. The rotating disk 36 is rotatably sleeved on the rotating shaft 3. The two grinding rollers 4 are respectively fixedly sleeved on the two rotating shafts 3. The two rotating shafts 3 are controlled to rotate relatively by a driving component. Two guide plates 21 are symmetrically and fixedly installed in the grinding chamber 2. The two guide plates 21 are inclined and guide the material to flow towards the two grinding rollers 4 below.

[0038] A water tank 10 is fixedly installed on the surface of the machine body 1. A temperature sensor is provided in the water tank 10. A small air conditioner-type cooler electrically connected to the temperature sensor is provided on the inner wall of the water tank 10. The temperature sensor can monitor the temperature of the water in the water tank 10. When the temperature is relatively high, it will emit an electrical signal. When the small air conditioner chamber cooler receives the electrical signal, it will cool the water in the water tank 10. Installation rods 11 are symmetrically and fixedly installed on the surface of the machine body 1. A sliding groove is provided at one end of the installation rod 11. A sliding rod 12 is slidably and hermetically inserted into the sliding groove. A spiral circulating pipe 13 is provided in the installation groove 9. The surface of the circulating pipe 13 is in contact with the groove wall of the installation groove 9. A water outlet pipe 14 is fixedly installed at one end of the installation rod 11. One ends of the two water outlet pipes 14 are respectively fixedly communicated with one ends of the two circulating pipes 13. The end of the circulating pipe 13 far from the water outlet pipe 14 penetrates the machine body 1 and is fixedly communicated with the water tank 10. A water inlet pipe 15 communicating with the water tank 10 is fixedly installed on the surface of the installation rod 11. One-way valves are provided in both the water inlet pipe 15 and the water outlet pipe 14. The conduction direction of the one-way valve in the water inlet pipe 15 is from the inside of the water tank 10 to the inside of the installation rod 11. The conduction direction of the one-way valve in the water outlet pipe 14 is from the inside of the installation rod 11 to the inside of the water tank 10. The two sliding rods 12 are controlled to move horizontally back and forth by a threaded component. The threaded component includes a reciprocating lead screw 19 fixedly installed at the end of one of the rotating shafts 3 and an L-shaped sliding plate 20 threadedly sleeved on the reciprocating lead screw 19. The sliding plate 20 is fixedly connected to the two sliding rods 12.

[0039] First, control the two grinding rollers 4 to rotate relatively through the driving component, and then put the food raw material to be ground into the grinding chamber 2 from the feed hopper 5. The food raw material entering the grinding chamber 2 will be ground by the two relatively rotating grinding rollers 4, and the ground food raw material enters the screening chamber 6. The food raw material with qualified size can pass through the screening port 8 and fall from the discharge port 7, while the food raw material with unqualified size cannot pass through the screening port 8.

[0040] When the grinding roller 4 is rotating, the rotating shaft 3 will also rotate with the reciprocating screw 19, and the slide plate 20 threadedly sleeved on the reciprocating screw 19 will carry the two slide bars 12 to move back and forth horizontally, and the space volume between the end of the slide bar 12 and the wall of the chute will continuously change from small to large, and then from large to small. When the space volume increases, the pressure in the chute decreases, and the water in the water tank 10 will enter the chute from the water inlet pipe 15. When the space volume decreases, the pressure in the chute increases, and the water in the slide bar 12 increases. The water in the tank will enter the circulation pipe 13 from the outlet pipe 14 and flow back to the water tank 10 from the circulation pipe 13. The grinding roller 4 generates heat due to friction during operation, and its temperature is higher than that of the cold water in the circulation pipe 13. According to the principle of heat conduction, the heat will be transferred from the high-temperature grinding roller 4 to the low-temperature circulation pipe 13. At the same time, the water in the circulation pipe 13 is in a flowing state, forming convection. The low-temperature water continuously takes away the heat conducted from the grinding roller 4, and new low-temperature water is continuously replenished, so that the heat is continuously transferred out, thereby reducing the temperature of the grinding roller 4.

[0041] The driving assembly includes an energy-saving motor 16 and two meshing gears 17. An L-shaped plate is fixedly installed on the surface of the body 1, and the energy-saving motor 16 is fixedly installed on the surface of the L-shaped plate. A connecting rod 18 is fixedly installed on the output shaft of the energy-saving motor 16. One end of the two rotating shafts 3 passes through the body 1. The two gears 17 are respectively fixedly sleeved on one end of the two rotating shafts 3 passing through the body 1, and the connecting rod 18 is fixedly connected to one of the rotating shafts 3.

[0042] When the energy-saving motor 16 is started, the output shaft of the energy-saving motor 16 will rotate with the connecting rod 18 and one of the rotating shafts 3. Under the transmission action of the two meshing gears 17, the other rotating shaft 3 will also rotate, thereby realizing the relative rotation of the two grinding rollers 4.

[0043] A rectangular frame 22 is fixedly installed on the left and right walls of the grinding chamber 2, and a spring rod 23 is horizontally fixedly installed in the rectangular frame 22. A through hole is opened on the surface of the rectangular frame 22 close to the grinding roller 4, and one end of the spring rod 23 passes through the through hole, and a scraper block 24 with a triangular longitudinal section is fixedly installed through a connecting rod. The two spring rods 23 are controlled to retract and retract by a pressing component, and the pressing component includes a U-shaped abutment plate 25 and two inclined plates 26. A reciprocating thread is opened on the surface of the connecting rod 18, and the abutment plate 25 is threadedly sleeved on the connecting rod 18. Through holes respectively connected to the two rectangular frames 22 are symmetrically opened on the surface of the body 1. A mounting block is fixedly sleeved on the free end of the spring rod 23, and the two inclined plates 26 are fixedly connected to the two mounting blocks respectively, and the two inclined plates 26 are symmetrically arranged, and the two ends of the abutment plate 25 pass through the two through holes respectively, and are in sliding contact with the inclined surfaces of the two inclined plates 26 respectively.

[0044] When the bottom plate 25 is not in contact with the two inclined plates 26, the spring rod 23 will be in a natural state at this time, and neither of the two scraping blocks 24 will be in contact with the grinding roller 4. When the energy-saving motor 16 drives the connecting rod 18 to rotate, the bottom plate 25 that is threadedly sleeved on the connecting rod 18 will perform a horizontal reciprocating movement. During the movement, the two ends of the bottom plate 25 will intermittently slide and contact the inclined surfaces of the two inclined plates 26 respectively. When the bottom plate 25 slides and contacts the inclined plate 26, the spring rod 23 will drive the scraping block 24 to move towards the direction close to the grinding roller 4 under the acting force of the inclined surface pressing. The distance between the scraping block 24 and the grinding roller 4 will gradually shorten until the scraping block 24 contacts the grinding roller 4, so as to remove the materials adhered to the grinding roller 4 without affecting the grinding of the grinding roller 4, and avoid the influence on the grinding quality due to excessive material adhesion.

[0045] Then the bottom plate 25 will move back at this time, and the pressing force applied to the spring rod 23 will gradually disappear. The scraping block 24 will gradually move back to its original position under the elastic potential energy of the spring rod 23 and will no longer be in contact with the grinding roller 4. That is, the removal of the materials on the surface of the grinding roller 4 is intermittent, avoiding the grinding roller 4 being in contact with the scraping block 24 all the time, resulting in relatively serious wear.

[0046] A rotating rod 27 is horizontally and rotatably installed in the screening chamber 6. A plurality of turning plates 28 are fixedly installed on the surface of the rotating rod 27 in a circumferential shape. The surface of the turning plate 28 away from the rotating rod 27 is in sliding contact with the chamber wall of the screening chamber 6. One end of the rotating rod 27 penetrates out of the machine body 1. One ends of the reciprocating lead screw 19 and the end of the rotating rod 27 that penetrates out of the machine body 1 are both fixedly sleeved with transmission wheels 29, and a transmission belt 30 is sleeved on the two transmission wheels 29.

[0047] When the reciprocating lead screw 19 rotates, at this time, with the cooperation of the two transmission wheels 29 and the transmission belt 30, the rotating rod 27 will also rotate, so that a plurality of turning plates 28 will turn the raw materials located in the screening chamber 6, avoiding the phenomenon that the raw materials after grinding are prone to accumulation when entering the screening chamber 6.

[0048] An operation port 31 communicating with the screening chamber 6 is opened on the surface of the machine body 1. A baffle 32 is rotatably installed in the operation port 31 through a rotating shaft. A rotating groove is opened on the surface of the machine body 1. A round rod 33 is horizontally and rotatably installed in the rotating groove. A blocking block 34 is fixedly sleeved on the round rod 33. The surface of the blocking block 34 is in sliding contact with the surface of the baffle 32. A torsion spring 35 is sleeved on the round rod 33, and the two ends of the torsion spring 35 are respectively fixedly connected with the groove wall of the rotating groove and the surface of the blocking block 34.

[0049] When grinding food raw materials, the baffle 32 will be located within the operation port 31, and its surface will be in sliding contact with the surface of the stopper 34, thereby achieving the effect of restricting the rotation of the baffle 32 and stably blocking the operation port 31. After grinding, by rotating the round rod 33, the stopper 34 can be controlled to rotate until it no longer contacts the baffle 32, quickly releasing the restriction on the baffle 32. Then, the baffle 32 can be controlled to rotate out of the operation port 31, making the operation port 31 in an open state. Then, the unqualified raw materials sieved down in the screening chamber 6 are collected and ground again.

[0050] Among them, the rotation of multiple turning plates 28, the water in the water tank 10 flowing into the circulation pipe 13, and the relative movement of the two scraping blocks 24 do not require additional power driving devices, so no additional power cost will be generated, achieving the effect of energy saving.

[0051] In the present invention, when the grinding roller 4 grinds food raw materials, the water in the water tank 10 can be intermittently introduced into the circulation pipe 13 and then returned to the water tank 10, thereby effectively cooling the grinding roller 4, avoiding heat accumulation and temperature rise, which may cause the food raw materials to deteriorate, affect the food quality, change the material properties of the grinding roller 4, and reduce the grinding effect and equipment life.

[0052] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. An energy-saving food raw material grinding device, comprising a machine body (1) and two grinding rollers (4), characterized in that, A grinding chamber (2) is provided inside the machine body (1). Rotation openings are symmetrically provided on the surface of the machine body (1). A rotating shaft (3) is horizontally rotatably installed in each of the two rotation openings. An installation groove (9) is provided at one end of the grinding roller (4). A rotating disk (36) is rotatably installed at the notch of the installation groove (9). The rotating disk (36) is rotatably sleeved on the rotating shaft (3). The two grinding rollers (4) are respectively fixedly sleeved on the two rotating shafts (3). The two rotating shafts (3) are controlled to rotate relatively by a driving component; A water tank (10) is fixedly installed on the surface of the machine body (1). Installation rods (11) are symmetrically and fixedly installed on the surface of the machine body (1). A chute is provided at one end of the installation rod (11). A sliding rod (12) is slidably and sealingly inserted in the chute. A spiral circulation pipe (13) is provided in the installation groove (9). A water outlet pipe (14) is fixedly installed at one end of the installation rod (11). One ends of the two water outlet pipes (14) are respectively fixedly communicated with one ends of the two circulation pipes (13). The end of the circulation pipe (13) far from the water outlet pipe (14) penetrates through the machine body (1) and is fixedly communicated with the water tank (10). A water inlet pipe (15) communicated with the water tank (10) is fixedly installed on the surface of the installation rod (11). One-way valves are provided in both the water inlet pipe (15) and the water outlet pipe (14). The two sliding rods (12) are controlled to reciprocate horizontally by a threaded component.

2. The energy-saving food raw material grinding device according to claim 1, characterized in that, A feed hopper (5) communicated with the grinding chamber (2) is fixedly installed on the upper surface of the machine body (1). A screening chamber (6) communicated with the grinding chamber (2) is provided inside the machine body (1). A discharge port (7) is provided at the bottom of the machine body (1). A plurality of screening openings (8) all communicated with the discharge port (7) are circumferentially provided at the bottom of the screening chamber (6).

3. An energy-saving food raw material grinding device according to claim 1, characterized in that, The driving component includes an energy-saving motor (16) and two meshing gears (17). An L-shaped plate is fixedly installed on the surface of the machine body (1). The energy-saving motor (16) is fixedly installed on the surface of the L-shaped plate, and a connecting rod (18) is fixedly installed on the output shaft of the energy-saving motor (16). One ends of the two rotating shafts (3) both penetrate through the machine body (1). The two gears (17) are respectively fixedly sleeved on the ends of the two rotating shafts (3) that penetrate through the machine body (1). The connecting rod (18) is fixedly connected to one of the rotating shafts (3).

4. An energy-saving food raw material grinding device according to claim 2, characterized in that, The threaded component includes a reciprocating lead screw (19) fixedly installed at the end of one of the rotating shafts (3) and an L-shaped sliding plate (20) threadedly sleeved on the reciprocating lead screw (19). The sliding plate (20) is fixedly connected to the two sliding rods (12).

5. An energy-saving food raw material grinding device according to claim 4, characterized in that Guide plates (21) are symmetrically and fixedly installed in the grinding chamber (2). The two guide plates (21) are inclined and guide the material to flow towards the two grinding rollers (4) below.

6. The energy-saving food raw material grinding device according to claim 3, characterized in that, Both the left and right cavity walls of the grinding cavity (2) are fixedly installed with rectangular frames (22). A spring rod (23) is horizontally and fixedly installed inside the rectangular frame (22). A through hole is formed on the surface of the rectangular frame (22) close to the grinding roller (4). One end of the spring rod (23) passes through the through hole and is fixedly installed with a scraper (24) with a triangular cross-section through a connecting rod. The two spring rods (23) are controlled to expand and contract by a pressing component.

7. An energy-saving food raw material grinding device according to claim 6, characterized in that, The pressing component includes a U-shaped pressing plate (25) and two inclined plates (26). A reciprocating thread is formed on the surface of the connecting rod (18). The pressing plate (25) is threadedly sleeved on the connecting rod (18). Through holes respectively communicating with the interiors of the two rectangular frames (22) are symmetrically formed on the surface of the machine body (1). An installation block is fixedly sleeved on the free end of the spring rod (23). The two inclined plates (26) are respectively fixedly connected to the two installation blocks and are symmetrically arranged. The two ends of the pressing plate (25) respectively pass through the two through holes and are in sliding contact with the inclined surfaces of the two inclined plates (26).

8. An energy-saving food raw material grinding device according to claim 4, characterized in that A rotating rod (27) is horizontally and rotatably installed inside the screening cavity (6). A plurality of turning plates (28) are fixedly installed on the surface of the rotating rod (27) in a circumferential manner. The surface of the turning plate (28) away from the rotating rod (27) is in sliding contact with the cavity wall of the screening cavity (6). One end of the rotating rod (27) passes through the machine body (1). A transmission wheel (29) is fixedly sleeved on one end of the reciprocating lead screw (19) and the end of the rotating rod (27) passing through the machine body (1). A transmission belt (30) is sleeved on the two transmission wheels (29).

9. An energy-saving food raw material grinding device according to claim 8, wherein An operation port (31) communicating with the screening cavity (6) is formed on the surface of the machine body (1). A baffle (32) is rotatably installed in the operation port (31) through a rotating shaft. A rotating groove is formed on the surface of the machine body (1). A round rod (33) is horizontally and rotatably installed in the rotating groove. A blocking block (34) is fixedly sleeved on the round rod (33). The surface of the blocking block (34) is in sliding contact with the surface of the baffle (32). A torsion spring (35) is sleeved on the round rod (33). The two ends of the torsion spring (35) are respectively fixedly connected to the groove wall of the rotating groove and the surface of the blocking block (34).

10. The energy-saving food raw material grinding device according to claim 1, characterized in that, A temperature sensor is provided inside the water tank (10). A small air conditioner type cooler electrically connected to the temperature sensor is provided on the inner wall of the water tank (10).

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