Food additive small-dose precise metering and filling machine

Abstract

The application discloses a food additive small-dose precise metering and filling machine, which comprises a rack, a conveying belt conveyor arranged on the front side of the upper surface of the rack, and a filling mechanism arranged on the rear side of the upper surface of the rack, characterized in that the food additive small-dose precise metering and filling machine further comprises a metering mechanism; the metering mechanism comprises support plates, clamping assemblies, fixing plates, bosses, sheet pressure sensors and pressing plates, the middle upper end of the conveying belt conveyor is provided with front-rear symmetrically distributed support plates, each of the support plates is slidably connected with two groups of uniformly distributed slide columns three, the lower ends of the slide columns three in the same group are fixedly connected with the fixing plates, the lower ends of the fixing plates are provided with the clamping assemblies, the front-rear adjacent two clamping assemblies are used in cooperation, and the upper ends of the slide columns three in the same group are fixedly connected with the pressing plates, the food additive small-dose precise metering and filling machine improves the precision of filling through the bottle hoisting and weighing mode.

Description

Technical Field

[0001] This invention relates to the field of food additive filling technology, specifically to a small-dose, precise metering filling machine for food additives. Background Technology

[0002] Food additives are natural or synthetic substances intentionally added to optimize the flavor, color, texture, and extend the shelf life of food. They mainly include preservatives, colorants, thickeners, leavening agents, and sweeteners. All additives approved for use in my country have undergone safety and toxicology testing, with strict limits on their use and dosage. When used in compliance with regulations, they will not harm human health. In food production, preservatives inhibit microbial growth and prevent food spoilage, while various additives ensure the stable formation of products such as pastries and beverages.

[0003] Existing low-viscosity food additives are usually filled using peristaltic pump filling systems. Peristaltic pump filling systems calculate the filling volume based on the flow rate to ensure filling accuracy. However, the flow rate inside the hose used to transport food additives may drift slightly, which may cause a difference between the actual filling volume and the preset filling volume. To address this, we propose a small-dose precision metering filling machine for food additives. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a small-dose precision metering and filling machine for food additives. By using a bottle-lifting and weighing method, the filling accuracy is improved, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a small-dose precision metering filling machine for food additives, comprising a frame, a conveyor belt conveyor being provided on the front side of the upper surface of the frame, and a filling mechanism being provided on the rear side of the upper surface of the frame, characterized in that: it further comprises a metering mechanism;

[0006] Measuring mechanism: It includes a support plate, clamping components, a fixing plate, bosses, thin-film pressure sensors, and pressure plates. The upper middle part of the conveyor belt is provided with symmetrically distributed support plates. Each support plate has two pairs of evenly distributed sliding columns connected to its middle part. The lower ends of the sliding columns in the same group are fixedly connected to a fixing plate. The lower end of each fixing plate is provided with a clamping component. Two adjacent clamping components work together. The upper ends of the sliding columns in the same group are fixedly connected to a pressure plate. The upper surface of the support plate is provided with evenly distributed bosses. The upper surface of each boss is fixedly connected with a thin-film pressure sensor. The thin-film pressure sensors are located at the lower middle of the vertically adjacent pressure plates. By weighing the bottles while they are suspended, the filling accuracy is improved.

[0007] Furthermore, it also includes a control console, which is located on the right side of the frame. The input terminal of the controller built into the control console is electrically connected to an external power source, and the input terminal of the conveyor belt is electrically connected to the output terminal of the controller built into the control console, controlling electrical appliances.

[0008] Furthermore, the filling mechanism includes a support, a storage tank, a servo peristaltic pump, a sliding column, a fixed frame, and filling needles. The support is fixedly connected to the rear side of the upper surface of the frame. The storage tanks are evenly distributed on the rear side of the upper surface of the frame. The servo peristaltic pumps are evenly distributed on the upper surface of the support. The front end of the support is fixedly connected to two symmetrically distributed sliding columns. The fixed frame is slidably connected between the two sliding columns. The front end of the fixed frame is fixedly connected to evenly distributed filling needles. The inlet of the filling needle is connected to the inlet of the adjacent storage tank on the rear side through a flexible tube. The flexible tubes from left to right are used in sequence with the servo peristaltic pumps from left to right. The input end of the servo peristaltic pump is electrically connected to the output end of the controller built into the control console to realize filling.

[0009] Furthermore, the filling mechanism also includes a top plate, with the top plate fixedly connected between the upper ends of the two sliding columns. The top plate is fixedly connected in the middle with studs symmetrically distributed on the left and right. An adjusting frame is fixedly connected to the rear end of the fixing frame, with the rear end of the adjusting frame located at the lower end of the two studs, thereby realizing the height adjustment of the filling needle.

[0010] Furthermore, a guide block is fixedly connected to the front end of the upper surface of the top plate, and the hoses pass through the vertically adjacent through holes of the guide blocks to guide and manage the hoses.

[0011] Furthermore, the metering mechanism also includes a second sliding column and a lifting frame. The lifting frame is slidably connected between the lower ends of the two first sliding columns. The lifting frame is located at the lower end of the fixed frame. A second cylinder is fixedly connected to the rear end of the upper surface of the frame. The upper end of the telescopic end of the second cylinder is fixedly connected to the lower surface of the lifting frame. The lower ends of both sides of the lifting frame are fixedly connected to the second sliding column. The support plate is slidably connected between the left and right ends of the two second sliding columns to realize the lifting of the filling bottle.

[0012] Furthermore, the metering mechanism also includes a merging assembly, which includes a connecting rod, a cylinder, and a connecting seat. The cylinder is fixedly connected to the right side of the upper surface of the lifting frame, and the connecting seat is fixedly connected to the left end of the telescopic end of the cylinder. The lower end of the connecting seat is rotatably connected to a connecting rod symmetrically distributed front and rear via a pin. The right end of the front connecting rod is rotatably connected to the front support plate, and the right end of the rear connecting rod is rotatably connected to the rear support plate via a pin, thereby driving the clamping assembly to clamp the filling bottle.

[0013] Furthermore, the clamping assembly also includes clamping plates, notched plates, and arc-shaped plates. The clamping plates are respectively connected to the lower end of the fixed plate by bolts. The middle of the opposite inner side of two adjacent clamping plates is provided with notched plates, and the lower end of the opposite inner side of two adjacent clamping plates is provided with arc-shaped plates, so as to prevent the filling bottle from shaking while lifting the filling bottle.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This food additive small-dose precise metering and filling machine has the following advantages:

[0015] Before filling food additives, the filling bottles are stably clamped and lifted by notched plates and arc plates. They are weighed by thin-film pressure sensors. The pressure of the filling bottle is applied vertically to the thin-film pressure sensors through a sliding column to eliminate the lever arm. The sum of the pressures detected by adjacent thin-film pressure sensors, after tare, is the actual filling volume of the corresponding filling bottle. This method of directly detecting the filling volume improves filling accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a cross-sectional structural schematic diagram of the filling mechanism and metering mechanism of the present invention;

[0018] Figure 3 for Figure 1 Enlarged structural diagram at point A;

[0019] Figure 4 for Figure 1 Enlarged structural diagram at point B;

[0020] Figure 5 This is a schematic diagram of the clamping component of the present invention.

[0021] In the diagram: 1. Frame, 2. Control console, 3. Filling mechanism, 31. Support, 32. Storage tank, 33. Servo peristaltic pump, 34. Slide column one, 35. Fixed frame, 36. Top plate, 37. Filling needle, 4. Metering mechanism, 41. Slide column two, 42. Lifting frame, 43. Merging assembly, 431. Connecting rod, 432. Cylinder one, 433. Connecting seat, 44. Support plate, 45. Clamping assembly, 451. Clamping plate, 452. Notch plate, 453. Arc plate, 46. Fixed plate, 47. Boss, 48. Thin sheet pressure sensor, 49. Pressure plate, 5. Cylinder two, 6. Stud, 7. Guide block, 8. Conveyor belt. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1-5 This embodiment provides a technical solution: a small-dose precision metering filling machine for food additives, including a frame 1. A conveyor belt 7 is arranged on the front side of the upper surface of the frame 1, and a filling mechanism 3 is arranged on the rear side of the upper surface of the frame 1. The filling mechanism 3 includes a support 31, a storage tank 32, a servo peristaltic pump 33, a sliding column 34, a fixing frame 35, and filling needles 37. The support 31 is fixedly connected to the rear side of the upper surface of the frame 1. The storage tanks 32 are evenly distributed on the rear side of the upper surface of the frame 1. The servo peristaltic pump 33 is evenly distributed on the upper surface of the support 31. The front end of the support 31 is fixedly connected to the left and right symmetrically distributed sliding columns 34. The fixing frame 35 is slidably connected between the two sliding columns 34. The front end of the fixing frame 35 is fixedly connected to the evenly distributed filling needles 37. The liquid inlet of the filling needle 37 is connected to the inlet of the adjacent storage tank 32 on the rear side through a flexible tube. The flexible tubes from left to right are respectively connected to the storage tank 32. The servo peristaltic pump 33, from left to right, is used in conjunction with the control unit 2. The input end of the servo peristaltic pump 33 is electrically connected to the output end of the controller built into the control unit 2. The filling mechanism 3 also includes a top plate 36. The top plate 36 is fixedly connected between the upper ends of the two sliding columns 34. The top plate 36 is fixedly connected to the middle of the top plate 36 with symmetrically distributed studs 6. The rear end of the fixed frame 35 is fixedly connected to an adjustment frame. The rear end of the adjustment frame is located at the lower end of the two studs 6. The front end of the upper surface of the top plate 36 is fixedly connected to a guide block 7. The hoses pass through the vertically adjacent through holes of the guide block 7. During filling, the servo peristaltic pump 33 conveys the food additive by alternating squeezing with its own multi-roller. Since the servo peristaltic pump 33 has its own integrated servo system, the filling volume can be preset. The preset filling volume is 80% of the actual filling volume of the filling bottle. The liquid food additive is drawn out from the inside of the storage tank 32 and injected into the lower adjacent filling bottle through the filling needle 37. The filling mechanism 3 also includes a metering mechanism 4.

[0024] The measuring mechanism 4 includes a support plate 44, a clamping assembly 45, a fixing plate 46, a boss 47, a thin-film pressure sensor 48, and a pressure plate 49. The upper middle part of the conveyor belt 7 is provided with a support plate 44 symmetrically distributed front and back. The middle part of the support plate 44 is slidably connected with a pair of evenly distributed sliding columns 3. The lower ends of the sliding columns 3 in the same group are fixedly connected with a fixing plate 46. The lower end of the fixing plate 46 is provided with a clamping assembly 45. Two adjacent clamping assemblies 45 are used in cooperation. The upper ends of the sliding columns 3 in the same group are fixedly connected with a pressure plate 49. The upper surface of the support plate 44 is provided with evenly distributed bosses 47. The upper surface of the bosses 47 is fixedly connected with thin-film pressure sensors 48. The thin-film pressure sensors 48 are located at the lower middle part of the vertically adjacent pressure plates 49.

[0025] Among them, such as Figure 3 As shown, the clamping assembly 45 also includes a clamping plate 451, a notched plate 452, and an arc-shaped plate 453. The clamping plates 451 are respectively connected to the lower end of the fixing plate 46 by bolts. The middle of the opposite inner side of two adjacent clamping plates 451 is provided with a notched plate 452, and the lower end of the opposite inner side of two adjacent clamping plates 451 is provided with an arc-shaped plate 453. The whole assembly of the fixing plate 46 and the clamping assembly 45 moves synchronously with the adjacent support plate 44. The two adjacent notched plates 452 clamp the neck of the filling bottle for lifting the filling bottle, and the two adjacent arc-shaped plates 453 clamp the body of the filling bottle to prevent the filling bottle from shaking after being lifted. After the food additive is injected into the filling bottle, the weight of the filling bottle changes, and the pressure plate 49 The adjacent thin-plate pressure sensors 48 at their lower ends are pressed down respectively. The pressure detected by the thin-plate pressure sensors 48 is fed back to the controller built into the control console 2. The total pressure detected by the adjacent thin-plate pressure sensors 48, after tare, is the actual filling amount of food additive in the bottle. The specific force logic of the pressure detected by the thin-plate pressure sensor 48 is as follows: weight of the filling bottle → notch plate 452 → clamping plate 451 → fixing plate 46 → sliding column three → pressure plate 49 → the entire thin-plate pressure sensor 48 is vertically pressed. The load is transmitted vertically throughout the process. The notch plate 452 and the arc plate 453 only perform clamping and positioning, eliminating the lever arm of the notch plate 452. The detection of the thin-plate pressure sensor 48 is more accurate. The final 20% of filling is completed through the detection of the thin-plate pressure sensor 48.

[0026] Among them, such as Figure 4As shown, the metering mechanism 4 also includes a second sliding column 41 and a lifting frame 42. The lifting frame 42 is slidably connected between the lower ends of two first sliding columns 34. The lifting frame 42 is located at the lower end of the fixed frame 35. A second cylinder 5 is fixedly connected to the rear end of the upper surface of the frame 1. The upper end of the telescopic end of the second cylinder 5 is fixedly connected to the lower surface of the lifting frame 42. The lower ends of the left and right sides of the lifting frame 42 are fixedly connected to the second sliding columns 41. The support plate 44 is slidably connected between the left and right ends of the two second sliding columns 41. When the telescopic end of the second cylinder 5 is pushed out, it drives the lifting frame 42 to slide upward between the two first sliding columns 34. The support plate 44, the fixed plate 46 and the clamping assembly 45 move upward, and the filling bottle is lifted. Due to the limitation of the first sliding column 34, the lifting frame 42 can only slide vertically. The vertical movement of the lifting frame 42 is more stable. At the same time, the first sliding column 34 serves as axial protection for the second cylinder 5, extending the service life of the second cylinder 5.

[0027] Among them, such as Figure 4 As shown, the measuring mechanism 4 also includes a merging component 43, which includes a connecting rod 431, a cylinder 432, and a connecting seat 433. The cylinder 432 is fixedly connected to the right side of the upper surface of the lifting frame 42. The connecting seat 433 is fixedly connected to the left end of the telescopic end of the cylinder 432. The lower end of the connecting seat 433 is rotatably connected to the connecting rods 431 that are symmetrically distributed front and rear through a pin. The right end of the front connecting rod 431 and the front support plate 44, as well as the right end of the rear connecting rod 431 and the rear support plate 44, are rotatably connected through pins. When the telescopic end of the cylinder 432 is extended, the connecting seat 433 and the connecting rod 431 are pushed to the left. The two connecting rods 431, the connecting seat 433, and the support plate 44 form an isosceles trapezoidal structure. When the connecting rod 431 moves to the left, the right end of the connecting rod 431 pulls the support plate 44 to slide between the two sliding columns 41 and move closer to each other.

[0028] Among them, such as Figure 1 As shown, it also includes a control console 2, which is located on the right side of the frame 1. The input terminal of the controller built into the control console 2 is electrically connected to an external power supply, and the input terminal of the conveyor belt 7 is electrically connected to the output terminal of the controller built into the control console 2.

[0029] The working principle of the food additive small-dose precision metering filling machine provided by the present invention is as follows: The food additive small-dose precision metering filling machine is placed in the corresponding position of the filling production line. The front bottle sorting mechanism transports the neatly arranged filling bottles to the conveyor belt 7. The distance between the central axes of two adjacent filling bottles is the same as the distance between the central axes of two adjacent filling needles 37. Guide plates are fixedly connected to the left and right sides of the conveyor belt 7. The distance between the inner sides of the two guide plates is slightly larger than the diameter of the filling bottle to avoid large displacement of the filling bottle in the front and back directions. A photoelectric proximity switch is fixedly connected to the middle of the front side of the housing of the conveyor belt 7. The photoelectric proximity switch can be HH30401NMZSF photoelectric proximity switch. The photoelectric proximity switch is bidirectionally electrically connected to the controller built into the control console 2. After the photoelectric proximity switch detects the filling bottle, it feeds back the position information of the filling bottle to the controller built into the control console 2.

[0030] The specific installation position of the photoelectric proximity switch can be adjusted according to the actual situation. This solution is only for reference and not the only implementation method. The installation position of the photoelectric proximity switch is as follows: when the lower end of each filling needle 37 corresponds to a filling bottle, the photoelectric proximity switch corresponds to the left and right positions of the filling bottle adjacent to the left side of the filling bottle at the lower end of the leftmost filling needle 37. When the number of filling needles 37 is n, when the photoelectric proximity switch detects the (n+1)th filling bottle, the controller built into the control console 2 controls the conveyor belt 7 to stop conveying. The number of storage tanks 32, servo peristaltic pumps 33 and filling needles 37 are all equal and can be freely configured according to the production line requirements within the range that the frame 1 can accommodate.

[0031] After the conveyor belt 7 stops conveying, the filling operation begins. The telescopic end of cylinder 432 extends, and the connecting seat 433 and connecting rod 431 are pushed to the left. The two connecting rods 431, the connecting seat 433 and the support plate 44 form an isosceles trapezoidal structure. When the connecting rod 431 moves to the left, the right end of the connecting rod 431 pulls the support plate 44 to slide between the two sliding columns 41 and move closer to each other.

[0032] The fixed plate 46 and the clamping assembly 45 move synchronously with the adjacent support plate 44. The two adjacent notched plates 452 clamp the neck of the bottle to lift it. The two adjacent arc plates 453 clamp the body of the bottle to prevent it from shaking after being lifted. The notch diameter of the notched plate 452 and the inner diameter and length of the arc plate 453 can be adapted and replaced according to the bottle. Specifically, the whole assembly of the clamping plate 451, the notched plate 452 and the arc plate 453 is designed and replaced directly according to the shape of the bottle.

[0033] Subsequently, the telescopic end of cylinder 2 5 extends, causing the lifting frame 42 to slide upward between the two sliding columns 34. The support plate 44, the fixing plate 46, and the clamping assembly 45 move upward, and the filling bottle is lifted. Due to the limitation of the sliding column 34, the lifting frame 42 can only slide vertically. The vertical movement of the lifting frame 42 is more stable. At the same time, the sliding column 34 serves as axial protection for cylinder 2 5, extending the service life of cylinder 2 5.

[0034] The lead of the telescopic ends of cylinder 432 and cylinder 5 is determined by the magnetic switch detection method commonly used in the prior art. The magnetic switches can be selected from D-Y7P cylinder magnetic switches. Two magnetic switches are fixed on the outside of cylinder 432 and cylinder 5, corresponding to the maximum and minimum positions of the telescopic ends respectively. The magnetic switches detect the position of the piston of the telescopic ends of cylinder 432 and cylinder 5 by detecting the position of the magnetic ring inside cylinder 432 and cylinder 5. When the piston of the telescopic end moves to the position of the magnetic switch, the magnetic switch detects the magnetic ring of the piston of the telescopic end and then feeds back the position information to the controller built into the control console 2 to realize the position control of the lead of the telescopic ends of cylinder 432 and cylinder 5. The height of the notch plate 452 can be adjusted by adjusting the position of the corresponding magnetic switch when the telescopic end of cylinder 5 retracts, so as to ensure that the notch plate 452 can accurately clamp the neck position of the filling bottle.

[0035] After the filling bottle is lifted, the injection port of the filling needle 37 is aligned with the mouth of the adjacent filling bottle at the lower end. The lower end of the stud 6 is threaded with two nuts. The horizontal plate of the adjusting frame is located between the two nuts. Tightening the two nuts fixes the height of the fixing frame 35. The length of the stud 6 passing through the horizontal plate of the adjusting frame can be adjusted to adjust the height of the fixing frame 35, thereby adjusting the height of the filling needle 37. This ensures that the filling needle 37 can be inserted into the mouth of the filling bottle to avoid splashing of food additives. During filling, the servo peristaltic pump 33 delivers the food additives by alternating squeezing with its multiple rollers. Since the servo peristaltic pump 33 has an integrated servo system, the filling volume can be preset. The liquid food additives are drawn from inside the storage tank 32 and injected into the adjacent filling bottle at the lower end through the filling needle 37. The filling needle 37 can be a standard stainless steel filling needle. The specific length and filling volume are customized by the manufacturer according to the production line requirements.

[0036] The storage tank 32 contains food additives that need to be filled. Since the servo peristaltic pump 33 is used for conveying, the food additives are required to be low-viscosity liquid food additives, such as liquid flavorings, edible flavorings, compound sweeteners, preservative solutions, acidity regulators, vitamin solutions, enzyme preparations, etc.

[0037] After the food additive is injected into the filling bottle, the weight of the filling bottle changes. The pressure plate 49 presses down on the adjacent thin-plate pressure sensors 48 at the lower end. The thin-plate pressure sensors 48 feed back the detected pressure to the controller built into the control console 2. The total pressure detected by the adjacent thin-plate pressure sensors 48, after tare, is the actual amount of food additive filled into the filling bottle. The specific force logic of the pressure detected by the thin-plate pressure sensor 48 is as follows: weight of the filling bottle → notch plate 452 → clamping plate 451 → fixing plate 46 → sliding column 3 → pressure plate 49 → the entire thin-plate pressure sensor 48 is vertically pressed. The load is transmitted vertically throughout the process. The notch plate 452 and the arc plate 453 only perform clamping and positioning, eliminating the lever arm of the notch plate 452. The detection of the thin-plate pressure sensor 48 is more accurate. The servo peristaltic pump 33 quickly fills 80% of the preset filling amount. For the last 20% of the filling amount, the filling speed of the servo peristaltic pump 33 is reduced. The last 20% of the filling is completed by the detection of the thin-plate pressure sensor 48.

[0038] After filling is completed, cylinder 2 5 resets first, then cylinder 1 432 resets, and the filling bottle containing the food additive is lowered. The conveyor belt 7 starts to continue conveying the filling bottle. The photoelectric proximity switch uses the signal of the (n+1)th filling bottle detected by the previous group as the first signal of the next group to continue detection.

[0039] It is worth noting that the controller built into the console 2 disclosed in the above embodiments can be an NHR-PR20 series PLC integrated programmable controller, the thin-film pressure sensor 48 can be an HWJ1 thin-film pressure sensor, the servo peristaltic pump 33 can be an IPUNP series servo peristaltic pump, the conveyor belt 7 can be a ZDJ series narrow-strip conveyor belt, and cylinder 1 432 and cylinder 2 5 can be freely configured according to the actual application scenario. The controller built into the console 2 performs timing control of each process based on the feedback of the photoelectric proximity switch and the magnetic attraction switch. The controller built into the console 2 controls the thin-film pressure sensor 48, the servo peristaltic pump 33 and the conveyor belt 7 using methods commonly used in the prior art.

[0040] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A food additive small-dose precision metering filling machine, comprising a frame (1), wherein a conveyor belt (7) is provided on the front side of the upper surface of the frame (1), and a filling mechanism (3) is provided on the rear side of the upper surface of the frame (1), characterized in that: It also includes metrology institutions (4); Measuring mechanism (4): It includes a support plate (44), a clamping assembly (45), a fixing plate (46), a boss (47), a thin sheet pressure sensor (48), and a pressure plate (49). The upper part of the conveyor belt (7) is provided with a support plate (44) symmetrically distributed front and back. The middle part of the support plate (44) is slidably connected with two pairs of evenly distributed sliding columns. The lower ends of the sliding columns in the same group are fixedly connected with a fixing plate (46). The lower end of the fixing plate (46) is provided with a clamping assembly (45). Two adjacent clamping assemblies (45) are used in cooperation. The upper ends of the sliding columns in the same group are fixedly connected with a pressure plate (49). The upper surface of the support plate (44) is provided with evenly distributed bosses (47). The upper surface of the bosses (47) is fixedly connected with thin sheet pressure sensors (48). The thin sheet pressure sensors (48) are located at the lower middle part of the vertically adjacent pressure plates (49).

2. The food additive small-dose precision metering filling machine according to claim 1, characterized in that: It also includes a console (2), which is located on the right side of the frame (1). The input of the controller built into the console (2) is electrically connected to an external power source, and the input of the conveyor belt (7) is electrically connected to the output of the controller built into the console (2).

3. The food additive small-dose precision metering filling machine according to claim 2, characterized in that: The filling mechanism (3) includes a support (31), a storage tank (32), a servo peristaltic pump (33), a slide column (34), a fixing frame (35), and a filling needle (37). The support (31) is fixedly connected to the rear side of the upper surface of the frame (1). The storage tanks (32) are evenly distributed on the rear side of the upper surface of the frame (1). The servo peristaltic pumps (33) are evenly distributed on the upper surface of the support (31). The front end of the support (31) is fixedly connected to a symmetrically distributed... Sliding column 1 (34), a fixed frame (35) is slidably connected between the two sliding columns 1 (34), and a uniformly distributed filling needle (37) is fixedly connected to the front end of the fixed frame (35). The liquid inlet of the filling needle (37) is connected to the inlet of the adjacent storage tank (32) on the rear side through a hose. The hoses from left to right are used in sequence with the servo peristaltic pump (33) from left to right. The input end of the servo peristaltic pump (33) is electrically connected to the output end of the controller built into the control console (2).

4. The food additive small-dose precision metering filling machine according to claim 3, characterized in that: The filling mechanism (3) also includes a top plate (36), the top plate (36) is fixedly connected between the upper ends of the two sliding columns (34), the top plate (36) is fixedly connected to the middle of the top plate (36) and the studs (6) are symmetrically distributed on the left and right, the rear end of the fixed frame (35) is fixedly connected to an adjustment frame, and the horizontal plate at the rear end of the adjustment frame is connected to the lower end of the two studs (6).

5. A food additive small-dose precision metering filling machine according to claim 4, characterized in that: The top plate (36) has a guide block (7) fixedly connected to the front end of its upper surface, and the hoses pass through the vertically adjacent through holes of the guide block (7).

6. The food additive small-dose precision metering filling machine according to claim 3, characterized in that: The measuring mechanism (4) also includes a sliding column (41) and a lifting frame (42). The lifting frame (42) is slidably connected between the lower ends of the two sliding columns (34). The lifting frame (42) is located at the lower end of the fixed frame (35). The upper rear end of the upper surface of the frame (1) is fixedly connected to a cylinder (5). The upper end of the telescopic end of the cylinder (5) is fixedly connected to the lower surface of the lifting frame (42). The lower ends of the left and right sides of the lifting frame (42) are fixedly connected to sliding columns (41). The support plate (44) is slidably connected between the left and right ends of the two sliding columns (41).

7. A food additive small-dose precision metering filling machine according to claim 6, characterized in that: The measuring mechanism (4) also includes a merging component (43), which includes a connecting rod (431), a cylinder (432) and a connecting seat (433). The cylinder (432) is fixedly connected to the right side of the upper surface of the lifting frame (42). The connecting seat (433) is fixedly connected to the left end of the telescopic end of the cylinder (432). The lower end of the connecting seat (433) is rotatably connected to the connecting rod (431) which is symmetrically distributed in front and behind by means of a pin. The right end of the connecting rod (431) on the front side is rotatably connected to the support plate (44) on the front side, and the right end of the connecting rod (431) on the rear side is rotatably connected to the support plate (44) on the rear side by means of a pin.

8. The food additive small-dose precision metering filling machine according to claim 1, characterized in that: The clamping assembly (45) further includes a clamping plate (451), a notched plate (452), and an arc-shaped plate (453). The clamping plates (451) are respectively connected to the lower end of the fixing plate (46) by bolts. The middle of the relative inner side of the two adjacent clamping plates (451) is provided with a notched plate (452), and the lower end of the relative inner side of the two adjacent clamping plates (451) is provided with an arc-shaped plate (453).

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