Metering device for food processing

Abstract

The invention provides a metering device for food processing, and relates to the technical field of metering devices.The metering device comprises a weighing base, an L-shaped mounting frame is fixedly mounted on the weighing base, a discharging hopper is fixedly mounted on the transverse section of the L-shaped mounting frame, the bottom end of the discharging hopper communicates with a discharging pipe, and the periphery of the discharging pipe is sleeved with a dust suction sleeve; one side of the dust suction sleeve communicates with a dust exhaust pipe, and an exhaust fan is installed in the dust exhaust pipe. According to the metering device for food processing, through the arrangement of the weighing base, the L-shaped mounting frame, the discharging hopper, the dust exhaust sleeve, the dust exhaust pipe, the exhaust fan, the side frame, the movable block, the driving mechanism, the bag opening mechanism and the sealing mechanism, when powder materials are filled in a packaging bag for metering, the position of a bag opening can be ensured, the bag opening is sealed, raised dust is reduced, and the metering efficiency is improved. The pollution of raised dust to the working environment is reduced, the influence on the sanitation of the bag opening due to the fact that the raised dust adheres to the bag opening of the packaging bag is reduced, and the sealing quality of the bag opening of the packaging bag is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of metering devices, and in particular to a metering device used for food processing. Background Art

[0002] Metering devices for food processing are indispensable equipment in food production. They are mainly used to accurately control the weight or volume of raw materials, ingredients and finished products to ensure product quality and production efficiency. With the continuous development of the food industry, metering devices have made significant progress in technology, application and market trends. Modern metering devices for food processing are constantly innovating in technology to meet higher precision and automation requirements. For example, food-grade metering pumps can achieve precise flow control, and the error can generally be controlled within 1%. In addition, quantitative weighing sensors are also widely used in raw material weighing, ingredient control and packaging to ensure the accuracy and consistency of the production process. These devices are usually equipped with intelligent control systems that can realize automated operation and remote monitoring, further improving production efficiency.

[0003] However, when weighing powdered foods in bags, the packaging bag is usually clamped on both sides of the bag opening with a clamp, and then the two sides of the bag opening are sucked with a vacuum suction cup, the bag opening is opened, and then the powdered food is put into the bag. In actual situations, after the powdered food falls into the packaging bag, dust may be generated. The flying dust will adhere to the bag opening of the packaging bag. When sealing, it may cause the seal to be loose, the heat seal strength to decrease, the seal appearance to be poor, and the material in the package to leak. Summary of the invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes a metering device for food processing.

[0005] The present invention provides a metering device for food processing, comprising a weighing base, an L-shaped mounting frame fixedly mounted on the weighing base, a lower hopper fixedly mounted on the transverse section of the L-shaped mounting frame, a lower feed pipe connected to the bottom end of the lower hopper, a dust extraction sleeve sleeved on the outer periphery of the lower feed pipe, a dust exhaust pipe connected to one side of the dust extraction sleeve, and an exhaust fan installed in the dust exhaust pipe; Side frames are fixedly installed on both sides of the weighing base, movable blocks are installed on the sides of the two side frames close to each other, and clamps are installed on the sides of the two movable blocks close to each other. A driving mechanism is installed on the side frames, and the driving mechanism can drive the two movable blocks to move closer to each other while rising; A bag opening mechanism and a sealing mechanism are also provided between the two clamps. The bag opening mechanism is used to open the bag opening of the packaging bag, and the sealing mechanism can seal the bag opening when filling the powdery material.

[0006] Preferably, the bottom opening of the feed pipe is lower than the bottom end opening of the dust extraction sleeve, and the top of the dust extraction sleeve is in a blocked state.

[0007] Preferably, the driving mechanism includes a big-end slide bar, an electric push rod, a lifting block and a return spring, the big-end slide bar is fixedly connected to one side of the movable block, a bevel groove is provided on the side of the side frame close to the movable block, a mounting hole is provided on the bottom inner wall of the bevel groove, the electric push rod is fixedly installed in the mounting hole, the lifting block is fixedly installed on the conveying shaft of the electric push rod, and the lifting block is located in the bevel groove, the big-end slide bar slides through the lifting block, when the electric push rod drives the lifting block to rise and fall in the bevel groove, the bevel groove drives the big-end slide bar to rise and fall synchronously in the bevel groove, the end of the big-end slide bar slides along the bevel of the bevel groove, and the return spring is sleeved on the big-end slide bar, and the two ends of the return spring respectively abut against the big-end end of the return spring and the side of the lifting block.

[0008] Preferably, the clamp comprises two clamping blocks; the two clamping blocks are both slidably mounted on a side of the movable block away from the side frame.

[0009] Preferably, the bag opening mechanism includes a vacuum suction cup and a folding and unfolding component; the number of the vacuum suction cup and the folding and unfolding component are both two, the folding and unfolding component is installed on the clamping block, the two vacuum suction cups are respectively installed on the two folding and unfolding components, and the two storage components are used to adjust the distance between the two vacuum suction cups.

[0010] Preferably, the retractable and deployable assembly includes two extension rods and an adsorption block, the two extension rods are respectively installed on both sides of the adsorption block, the ends of the two extension rods away from the adsorption block are respectively rotatably connected to the clamping blocks in the two clamps, and the vacuum suction cup is installed on one side of the adsorption block.

[0011] Preferably, the sealing mechanism comprises a cylinder and a sealing rod; the expansion rod passes through a starting installation opening, the cylinder is fixedly installed in the installation opening, the sealing rod is rotatably installed on the output shaft of the cylinder, and the sealing rod is arranged in parallel with the expansion rod; A vacuum suction nozzle is provided on the side of the sealing rod.

[0012] Preferably, the sealing mechanism also includes a No. 1 elastic band and a No. 2 elastic band; the No. 1 elastic band and the No. 2 elastic band are respectively fixedly connected to the two ends of the sealing rod, the end of the No. 1 elastic band away from the sealing rod is fixedly connected to the extension rod, and the end of the No. 2 elastic band away from the sealing rod is fixedly connected to the extension rod.

[0013] Preferably, a bracket is fixedly mounted on one side of the two side frames close to each other, and an air intake pipe is mounted on the end of the bracket.

[0014] A metering device for food processing proposed by the present invention has the following beneficial effects: through the set weighing base, L-shaped mounting frame, lower hopper, dust extraction sleeve, dust exhaust pipe, exhaust fan, side frame, movable block, driving mechanism, bag opening mechanism and sealing mechanism, when the packaging bag is filled with powder material, the position of the bag mouth can be ensured, the bag mouth can be sealed, dust can be reduced, the pollution to the working environment caused by dust can be reduced, the dust can be reduced from adhering to the bag mouth of the packaging bag to affect the hygiene of the bag mouth, and the sealing quality of the bag mouth of the packaging bag can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a metering device for food processing proposed by the present invention; Figure 2 This is a schematic diagram of the structure of a bag opening mechanism and a sealing mechanism in a metering device for food processing proposed by the present invention; Figure 3 This is a structural cross-sectional view of a dust extraction sleeve, a feed pipe and a dust exhaust pipe in a metering device for food processing proposed by the present invention; Figure 4 A cross-sectional view of a large-head slide bar in a food processing metering device proposed by the present invention, located in a side frame; Figure 5 A top view of the structure of a metering device for food processing proposed by the present invention when clamping a packaging bag and completing sealing and filling; Figure 6 This is a schematic structural diagram of a single expansion rod in a metering device for food processing proposed by the present invention; Figure 7 The present invention is a structural cross-sectional view of a single expansion rod in a metering device for food processing.

[0016] In the figure: 1. Weighing base; 2. L-shaped mounting frame; 3. Feed hopper; 4. Feed pipe; 5. Dust extraction sleeve; 6. Dust exhaust pipe; 7. Side frame; 8. Movable block; 9. Big head slide bar; 10. Electric push rod; 11. Lifting block; 12. Reset spring; 13. Inclined groove; 14. Clamping block; 15. Vacuum suction cup; 16. Extension rod; 17. Adsorption block; 18. Cylinder; 19. Sealing rod; 20. No. 1 elastic band; 21. No. 2 elastic band; 22. Inlet pipe; 23. Vacuum suction nozzle. DETAILED DESCRIPTION

[0017] Reference Figure 1-Figure 7The present invention provides a metering device for food processing, comprising a weighing base 1, an L-shaped mounting frame 2 is fixedly mounted on the weighing base 1, a lower hopper 3 is fixedly mounted on the lateral section of the L-shaped mounting frame 2, the bottom end of the lower hopper 3 is connected with a lowering pipe 4, a motor is mounted on the L-shaped mounting frame 2, and a stirring blade is fixedly connected to the output shaft of the motor, the stirring blade stirs the material in the lower hopper 3 for convenient material discharge, a dust extraction sleeve 5 is sleeved on the outer periphery of the lowering pipe 4, the inner diameter of the dust extraction sleeve 5 is larger than the outer diameter of the lowering pipe 4 to form a dust extraction channel, a dust extraction sleeve 5 is connected to one side of the dust extraction sleeve 5, and the other end of the dust extraction sleeve 6 is connected to a collection box or a collection bag, etc., for collecting the powdered material sucked away for recycling and reducing waste, an exhaust fan is installed in the dust extraction pipe 6, when the powdered material is measured and bagged, it is necessary to insert the lowering pipe 4 and the dust extraction sleeve 5 into the bag mouth of the packaging bag, and the powdered material falls from the lowering pipe 4 into the packaging bag The generated dust is sucked away by the exhaust fan, thereby reducing the flying dust adhering to the bag opening of the packaging bag, thereby ensuring the hygiene of the bag opening and reducing the occurrence of loose sealing, reduced heat sealing strength, poor sealing appearance, etc. In actual situations, in order to improve the effect of absorbing dust, the bottom opening of the discharge pipe 4 is lower than the bottom opening of the dust extraction sleeve 5, and the top of the dust extraction sleeve 5 is in a blocked state, that is, the powdery material comes out of the discharge pipe 4 and directly enters the packaging bag. After the powdery material enters the packaging bag, dust is generated. The suction force generated by the exhaust fan draws the raised dust into the gap opening between the dust extraction sleeve 5 and the discharge pipe 4, thereby reducing the dust adhering to the bag opening of the packaging bag (assuming that the bottom opening of the discharge pipe 4 is flush with the bottom opening of the dust extraction sleeve 5 or the bottom opening of the discharge pipe 4 is in the dust extraction sleeve 5, the amount of powdery material sucked away will increase due to the suction force, resulting in unnecessary waste).

[0018] It should be noted that when bagging and measuring powdered materials, it is necessary to ensure that the bottom of the packaging bag is placed on the weighing base 1 for weighing and measuring. The working principle of the weighing base 1 is the same as that of an electronic scale.

[0019] like Figure 1 , Figure 2 and Figure 4As shown in , side frames 7 are fixedly installed on both sides of the weighing base 1, and movable blocks 8 are installed on the sides where the two side frames 7 are close to each other, and clamps are installed on the sides where the two movable blocks 8 are close to each other. A driving mechanism is installed on the side frames 7, and the driving mechanism can drive the two movable blocks 8 to move closer to each other while rising. When the powdery material is bagged and measured, it is necessary to first fix the bag mouth of the packaging bag, and adapt the two sides of the bag mouth of the packaging bag to be clamped and fixed by the two clamps. A bag opening mechanism and a sealing mechanism are also arranged between the two clamps. The bag opening mechanism is used to open the bag mouth of the packaging bag, and the sealing mechanism can seal the bag mouth when filling the powdery material. After clamping the two ends of the opening of the packaging bag, the bag mouth of the packaging bag is opened by the bag opening mechanism. When opening the bag mouth of the packaging bag, it is necessary to ensure that the two sides of the packaging bag are close to each other and the bag mouth of the packaging bag is opened. When the bag mouth of the packaging bag is opened, the driving mechanism works synchronously, and the driving mechanism The structure drives the two movable blocks 8 to rise. During the rising process, the two movable blocks 8 move close to each other to ensure the deformation of the bag mouth of the packaging bag when it is opened, and reduce the tearing caused by excessive pulling of the bag mouth. After the bag mouth of the packaging bag is opened, the bag mouth moves upward at the same time and is covered on the outside of the dust extraction sleeve 5, and then the bag mouth of the packaging bag is sealed with a sealing mechanism to reduce the waste caused by the flying of powder materials. At the same time, the raised dust can always be in the packaging bag. At the same time, the bag mouth of the packaging bag is sealed, and there will be no dust adhesion on the bag mouth. The raised dust is sucked away from the gap between the dust extraction sleeve 5 and the discharge pipe 4 by the exhaust fan. When the packaging bag is sealed, it will not be affected by the raised dust. After the powder material is filled, the dust raised in the packaging bag is extracted out. When the packaging bag is removed, dust overflow is reduced, and the pollution caused by the powder material flying out of the packaging bag to the machine and the environment is reduced, and the hygiene of the bag mouth can also be ensured.

[0020] like Figure 1 , Figure 2 and Figure 4As shown in the figure, the driving mechanism includes a large head slide bar 9, an electric push rod 10, a lifting block 11 and a reset spring 12. The large head slide bar 9 is fixedly connected to one side of the movable block 8. A side frame 7 is provided with a bevel groove 13 on the side close to the movable block 8. A mounting hole is provided on the bottom inner wall of the bevel groove 13. The electric push rod 10 is fixedly installed in the mounting hole. The lifting block 11 is fixedly installed on the conveying shaft of the electric push rod 10, and the lifting block 11 is located in the bevel groove 13. The lifting block 11 is upgraded in the bevel groove 13. The big end slide bar 9 slides through the lifting block 11, and the big end slide bar 9 can only slide on the lifting block 11, and cannot rotate on the lifting block 11. When the electric push rod 10 drives the lifting block 11 to rise and fall in the inclined groove 13, the inclined groove 13 drives the big end slide bar 9 to rise and fall synchronously in the inclined groove 13, and the end of the big end slide bar 9 slides along the inclined surface of the inclined groove 13. The reset spring 12 is sleeved on the big end slide bar 9, and the two ends of the reset spring 12 respectively abut against the big end and the lifting end of the reset spring 12. On the side of the lowering block 11, the rebound effect of the return spring 12 can make the big head slide bar 9 slide and reset in the inclined groove 13. During the specific operation, the electric push rod 10 works to drive the lifting block 11 to move up and down in the inclined groove 13. When the lifting block 11 drives the big head slide bar 9 to rise in the inclined groove 13, the big head end of the big head slide bar 9 slides in the inclined groove 13, and the big head end of the big head slide bar 9 abuts against the inclined surface of the inclined groove 13 for sliding cooperation. The big head slide bar 9 extends out in the inclined groove 13, and the two big The movable blocks 8 at the ends of the head slide bar 9 move towards each other, and at the same time drive the packaging bag clamped by the side clamp of the movable block 8 to rise and be mounted on the dust extraction sleeve 5, which is convenient for receiving materials and reduces the leakage of materials when receiving materials. When the big head slide bar 9 descends, the rebound effect of the return spring 12 can make the big head slide bar 9 slide and retract in the inclined groove 13, so that the two movable blocks 8 move towards each other, and at the same time drive the packaging bag containing the material to be removed from the dust extraction sleeve 5, which is convenient for the staff to take.

[0021] like Figure 2 and Figure 5 As shown in the figure, the clamp includes two clamping blocks 14; the two clamping blocks 14 are slidably installed on the side of the movable block 8 away from the side frame 7, and the clamping blocks 14 are slidably installed on the side of the movable block 8 through an electric slide rail. A soft pad is bonded on the side where the two clamping blocks 14 are close to each other, which can protect the bag opening of the packaging bag and reduce the damage to the packaging bag by squeezing.

[0022] like Figure 1 , Figure 2 and Figure 5As shown in, the bag opening mechanism includes a vacuum suction cup 15 and a retracting and unfolding component; the number of the vacuum suction cup 15 and the retracting and unfolding component is two, the retracting and unfolding component is installed on the clamping block 14, the two vacuum suction cups 15 are respectively installed on the two retracting and unfolding components, the two storage components are used to adjust the distance between the two vacuum suction cups 15, the retracting and unfolding component includes two extension rods 16 and an adsorption block 17, the two extension rods 16 are respectively installed on both sides of the adsorption block 17, the ends of the two extension rods 16 away from the adsorption block 17 are respectively rotatably connected to the clamping blocks 14 in the two clamps, the vacuum suction cup 15 is installed on one side of the adsorption block 17, the two extension rods 16 on both sides of the adsorption block 17 are initially in a straight line, and in the initial state, the two retracting and unfolding components can only rotate to the side away from each other (that is, the rotation is transformed to Figure 5 In the state of the packaging bag, when the two movable blocks 8 move toward each other, the four extension rods 16 change from two parallel lines to a parallelogram-like structure, and the vacuum suction cups 15 on the sides of the middle suction block 17 respectively suck the two sides of the packaging bag and open the bag mouth of the packaging bag, so that the packaging bag can be easily put on the dust extraction sleeve 5, and at the same time, the deformation of the bag mouth of the packaging bag can be ensured when it is opened, so as to reduce the deformation and damage of the bag mouth of the packaging bag due to being pulled when it is opened.

[0023] like Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown in, the sealing mechanism includes a cylinder 18 and a sealing rod 19; the expansion rod 16 passes through the starting installation port, the cylinder 18 is fixedly installed in the installation port, and the sealing rod 19 is rotatably installed on the output shaft of the cylinder 18, the sealing rod 19 is arranged in parallel with the expansion rod 16, and a storage groove that can accommodate the sealing rod 19 is provided on the side of the expansion rod 16. In the normal state, the sealing rod 19 is completely stored in the storage groove. When clamping the packaging bag, it is convenient to put the bag mouth into the packaging bag and reduce the bag mouth against the sealing rod 19; a vacuum suction nozzle 23 is provided on the side of the sealing rod 19. When the packaging bag is clamped normally, the two clamping blocks 14 in the clamp are driven away from each other by the electric slide rail, and the state is as shown in FIG. Figure 2As shown in , the packaging bag is placed in the gap between the two retracting and unfolding components, and the two ends of the bag opening of the packaging bag are respectively in the clamping positions of the two clamps. The electric slide rail drives the clamp to clamp and fix the two ends of the bag opening of the packaging bag. At the same time, the two retracting and unfolding components are also attached to the two sides of the bag opening of the packaging bag. The two vacuum suction cups 15 respectively suck the two sides of the packaging bag. At the same time, the sealing rod 19 is also attached to the side of the packaging bag (the height of the sealing rod 19 should be lower than the position of the bag opening of the packaging bag, ensuring that the clamping position of the sealing rod 19 is at a certain distance from the bag opening of the packaging bag, and maintained at 1-1.5cm, so that the final heat-sealed position of the packaging bag is outside the filling space of the packaging bag at this time to reduce the adhesion of dust), the vacuum suction nozzle 23 sucks the two sides of the packaging bag to ensure that the bag opening of the packaging bag is at all locations. In the open state, the bag mouth of the packaging bag is reduced to be deformed by external force, which may cause material leakage. At the same time, the electric push rod 10 drives the two movable blocks 8 to rise and move closer to each other, and the bag mouth of the packaging bag is sleeved on the outer periphery of the dust extraction sleeve 5, and then the four cylinders 18 work synchronously to drive the sealing rods 19 to approach and abut against each other, clamping the bag mouth of the packaging bag, and the side of the packaging bag is adsorbed by the vacuum suction nozzle 23 on the side of the sealing rod 19. When the bag mouth of the packaging bag is pushed close to each other for sealing, the bag mouth of the packaging bag is squeezed and the sealing position will not be displaced due to the deformation of the packaging bag, so that the sealing position is accurate and the sealing quality is good, which protects the bag mouth of the packaging bag and reduces the dust adhering to the bag mouth of the packaging bag.

[0024] In actual situations, although the sealing rod 19 clamps the bag opening of the packaging bag, there are still positions that the sealing rod 19 cannot clamp, such as the packaging bag at the outer periphery of the dust extraction sleeve 5. The sealing effect cannot be achieved, although the dust can be extracted. In order to ensure the hygiene of the bag opening, the following design is provided.

[0025] like Figure 2 , Figure 5 , Figure 6 and Figure 7As shown in the figure, the sealing mechanism also includes an elastic band No. 1 20 and an elastic band No. 21; the elastic band No. 1 20 and the elastic band No. 21 are respectively fixedly connected to the two ends of the sealing rod 19, the end of the elastic band No. 1 20 away from the sealing rod 19 is fixedly connected to the extension rod 16, and the end of the elastic band No. 2 21 away from the sealing rod 19 is fixedly connected to the extension rod 16. The two side frames 7 are fixedly installed with brackets on the sides close to each other, and the end of the bracket is installed with an air inlet pipe 22. The position of the air inlet pipe 22 is fixed. In the process of the packaging bag rising, the packaging bag will also be sleeved on the two air inlet pipes 22, and the sealing rod 19 is connected to the packaging bag. When the bag mouth is sealed, the two ends of the sealing rod 19 will respectively pull the No. 1 elastic band 20 to tighten the bag mouth of the packaging bag to the outer periphery of the air inlet pipe 22, and at the same time pull the No. 2 elastic band 21 to tighten the bag mouth of the packaging bag to the outer periphery of the dust extraction sleeve 5, so that most of the bag mouth position of the packaging bag is sealed to reduce the adhesion of dust. At the same time, during the dust extraction process, two air inlet pipes 22 are used to intake air from both sides to form a circulating airflow, which reduces the possibility of completely extracting the air in the packaging bag and ensures that the powder material has space to be filled. At the same time, the circulation formed can directly take away the dust generated by the powder material falling from the middle discharge pipe 4.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A metering device for food processing, characterized in that: The weighing device comprises a weighing base (1), an L-shaped mounting frame (2) being fixedly mounted on the weighing base (1), a lower hopper (3) being fixedly mounted on the transverse section of the L-shaped mounting frame (2), the bottom end of the lower hopper (3) being connected to a lowering pipe (4), a dust extraction sleeve (5) being sleeved on the outer periphery of the lowering pipe (4), one side of the dust extraction sleeve (5) being connected to a dust exhaust pipe (6), and an exhaust fan being mounted in the dust exhaust pipe (6); Side frames (7) are fixedly mounted on both sides of the weighing base (1); movable blocks (8) are mounted on the sides of the two side frames (7) that are close to each other; a clamp is mounted on the sides of the two movable blocks (8) that are close to each other; a driving mechanism is mounted on the side frames (7); the driving mechanism can drive the two movable blocks (8) to move closer to each other while rising; A bag opening mechanism and a sealing mechanism are also provided between the two clamps. The bag opening mechanism is used to open the bag opening of the packaging bag, and the sealing mechanism can seal the bag opening when filling the powdery material.

2. A metering device for food processing according to claim 1, characterized in that: The bottom opening of the feed pipe (4) is lower than the bottom opening of the dust extraction sleeve (5), and the top of the dust extraction sleeve (5) is in a blocked state.

3. A metering device for food processing according to claim 1, characterized in that: The driving mechanism comprises a large head slide bar (9), an electric push rod (10), a lifting block (11) and a return spring (12); the large head slide bar (9) is fixedly connected to one side of the movable block (8); a side of the side frame (7) close to the movable block (8) is provided with an inclined groove (13); a mounting hole is provided on the bottom inner wall of the inclined groove (13); the electric push rod (10) is fixedly installed in the mounting hole; the lifting block (11) is fixedly installed on the conveying shaft of the electric push rod (10), and the lifting block (11) is located in the inclined groove. (13), the big-end slide bar (9) slides through the lifting block (11), when the electric push rod (10) drives the lifting block (11) to rise and fall in the inclined groove (13), the inclined groove (13) drives the big-end slide bar (9) to rise and fall synchronously in the inclined groove (13), the end of the big-end slide bar (9) slides along the inclined surface of the inclined groove (13), the return spring (12) is sleeved on the big-end slide bar (9), and the two ends of the return spring (12) respectively abut against the big-end end of the return spring (12) and the side of the lifting block (11).

4. A metering device for food processing according to claim 3, characterized in that: The clamp comprises two clamping blocks (14); the two clamping blocks (14) are both slidably mounted on a side of the movable block (8) away from the side frame (7).

5. A metering device for food processing according to claim 4, characterized in that: The bag opening mechanism comprises a vacuum suction cup (15) and a collection and expansion component; the number of the vacuum suction cup (15) and the collection and expansion component are both two, the collection and expansion component is mounted on the clamping block (14), the two vacuum suction cups (15) are respectively mounted on the two collection and expansion components, and the two storage components are used to adjust the distance between the two vacuum suction cups (15).

6. A metering device for food processing according to claim 5, characterized in that: The retractable and extendable assembly comprises two extension rods (16) and an adsorption block (17), wherein the two extension rods (16) are respectively mounted on two sides of the adsorption block (17), and one end of the two extension rods (16) away from the adsorption block (17) is rotatably connected to the clamping blocks (14) in the two clamps, respectively, and the vacuum suction cup (15) is mounted on one side of the adsorption block (17).

7. A metering device for food processing according to claim 6, characterized in that: The sealing mechanism comprises a cylinder (18) and a sealing rod (19); the expansion rod (16) passes through a starting installation opening, the cylinder (18) is fixedly installed in the installation opening, the sealing rod (19) is rotatably installed on an output shaft of the cylinder (18), and the sealing rod (19) is arranged in parallel with the expansion rod (16); A vacuum suction nozzle (23) is provided on the side of the sealing rod (19).

8. A metering device for food processing according to claim 7, characterized in that: The sealing mechanism further comprises a No. 1 elastic band (20) and a No. 2 elastic band (21); the No. 1 elastic band (20) and the No. 2 elastic band (21) are respectively fixedly connected to two ends of the sealing rod (19); one end of the No. 1 elastic band (20) away from the sealing rod (19) is fixedly connected to the extension rod (16); and one end of the No. 2 elastic band (21) away from the sealing rod (19) is fixedly connected to the extension rod (16).

9. A metering device for food processing according to claim 8, characterized in that: A bracket is fixedly mounted on one side of the two side frames (7) that are close to each other, and an air intake pipe (22) is mounted on the end of the bracket.

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