Secondary high-speed precise material filling machine and working method thereof

Abstract

The invention belongs to the technical field of packaging equipment, and particularly belongs to a secondary high-speed precise material filling machine and a working method thereof. A secondary high-speed precise material filling machine comprises a weight checking belt, a precise feeding filling assembly and a precise feeding feeding belt. A fine feeding packing auger is mounted in the fine feeding pipe; the fine feeding pipe is connected with a fine feeding bin, a fine feeding inlet is formed in the lower portion of the fine feeding bin, a fine feeding conveying pipe is installed on the lower portion of the fine feeding inlet, and a fine feeding discharging pipe is installed on the lower side of one end of the fine feeding conveying pipe. A fine feeding feeding belt is arranged on the lower side of the fine feeding discharging pipe; a fine feeding auger is mounted in the fine feeding conveying pipe; a belt connected to the front side of the fine feeding belt is a weight checking belt; and photoelectric switches are respectively arranged at the weight checking belt and the fine feeding belt. Meanwhile, the invention further provides a working method of the secondary high-speed precise material filling machine. According to the invention, the filling time is greatly saved, and the production efficiency and precision are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of packaging equipment, and more specifically, to a secondary high-speed and precise material filling machine and its working method. Background Art

[0002] In the existing material packaging and filling machines, especially the powder quantitative filling machines, in order to make the weight accuracy of the filled material high, the feeding step is generally divided into three stages: "coarse feeding", "medium feeding", and "fine feeding". The material is filled in these three stages in sequence. To ensure the weight accuracy of feeding, the feeding speed will decrease in turn. Often, the time consumed in the final "fine feeding" stage is longer than that in the "coarse feeding" or "medium feeding" stage. If the final "fine feeding" stage is not completed, a new round of filling cannot be carried out, which greatly affects the production efficiency. Summary of the Invention

[0003] The present invention provides a secondary high-speed and precise material filling machine, which solves the problem of low filling efficiency in the above background art.

[0004] Meanwhile, the present invention also provides a working method for the above-mentioned secondary high-speed and precise material filling machine.

[0005] A secondary high-speed and precise material filling machine, characterized in that it includes a weight-checking belt, a fine-feeding filling component, and a fine-feeding feeding belt;

[0006] A fine-feeding inlet pipe is internally provided with a fine-feeding auger, and a fine-feeding inlet motor is drivingly connected to the fine-feeding auger;

[0007] The fine-feeding inlet pipe is connected to a fine-feeding bin. A fine-feeding inlet is provided at the lower part of the fine-feeding bin. A fine-feeding conveying pipe is installed below the fine-feeding inlet. A fine-feeding outlet pipe is installed at the lower side of one end of the fine-feeding conveying pipe; a fine-feeding feeding belt is provided below the fine-feeding outlet pipe;

[0008] A fine-feeding auger is installed inside the fine-feeding conveying pipe, and a fine-feeding outlet motor is drivingly connected to one end of the fine-feeding auger;

[0009] The belt in front of the fine-feeding feeding belt is the weight-checking belt;

[0010] Photoelectric switches are respectively installed at the weight-checking belt and the fine-feeding feeding belt.

[0011] Preferably, in the weight-checking belt, it includes a floor bolt, a bottom plate, a second weighing sensor, an upper plate, and a conveyor belt assembly;

[0012] The floor bolt is installed on the bottom plate. The second weighing sensor is installed on the upper side of the bottom plate. The upper plate is installed on the upper side of the second weighing sensor. The conveyor belt assembly is installed on the upper plate.

[0013] Preferably, the precise feeding pipe is of a sleeve structure, with a fixing frame connected to the outer pipe, a lifting cylinder connected to the fixing frame, a finger cylinder connected to the fixing frame, and two bag-supporting plates connected to the finger cylinder.

[0014] Preferably, at the end position of the precise feeding and adding belt, there is a bag guiding baffle; the rising and falling of the bag guiding baffle are controlled by a cylinder.

[0015] Preferably, there are multiple main discharge filling components used in conjunction with the secondary high-speed precise material filling machine;

[0016] The main discharge filling component includes a main material bin, a main inlet is installed at the lower part of the main material bin, a main conveying pipe is installed at the bottom of the main inlet, the lower part of the main conveying pipe is fixedly installed on the main filling frame, and a main discharge pipe is installed at one end of the main conveying pipe; a main auger is installed inside the main conveying pipe; a belt pulley is installed at one end of the main auger;

[0017] A main conveying belt is arranged at the lower part of the main discharge pipe;

[0018] The main discharge filling component at the last station is adjacent to the precise feeding filling component;

[0019] A precise feeding inlet pipe is installed on the main material bin at the last station, and the precise feeding auger extends into the main material bin;

[0020] The main conveying belt arranged at the lower part of the main discharge pipe at the last station is a weighing belt;

[0021] An optoelectronic switch is installed at the main conveying belt.

[0022] Preferably, on the side of the main auger where the belt pulley is installed, a sprocket is also installed; a stirring shaft is connected to the sprocket, and the stirring shaft is installed in the main inlet; in the precise feeding bin, a stirring shaft is also installed, and the stirring shaft is connected to a stirring motor.

[0023] Preferably, a movable pipe is installed at the lower part of the main discharge pipe, and the movable pipe is connected to the main discharge pipe by a flexible hose; a frame plate and a weighing plate are installed on the movable pipe, a bag clamping frame is connected to the lower side of the frame plate, a bag clamping cylinder is installed in the bag clamping frame, and the bag clamping frame is in movable contact with the lower side of the movable pipe; a weighing sensor one is installed in contact with the weighing plate.

[0024] Preferably, a bag punching cylinder is connected to the frame plate, and the bag punching cylinder is installed on both sides of the main discharge pipe; level gauges are respectively installed in the main material bin and the precise feeding bin.

[0025] The photoelectric switch at the weight-checking belt is Photoelectric A, the photoelectric switch at the first main conveying belt is Photoelectric B, the photoelectric switch on the precise feeding belt, the one near Photoelectric A is Photoelectric D, and the other one at the precise discharging pipe is Photoelectric C;

[0026] The working method of the above-mentioned secondary high-speed precise material filling machine is as follows:

[0027] Step 1: The precise feeding motor drives the precise feeding auger to rotate, and sends the material into the precise feeding bin for temporary storage;

[0028] Step 2: The packaging bag at the weight-checking belt falls onto the weight-checking belt; after Photoelectric A at the weight-checking belt is lit, the weight is checked; the weight-checking belt weighs and feeds back the weight, the system calculates the weight difference between the current bagged weight and the total weight, and then the precise feeding conveying pipe discharges the material into the outer pipe. After the weight difference transmitted by the second weighing sensor reaches the set value, it is stored at the outer pipe;

[0029] Step 3: After the packaging bag is transported to the precise feeding belt and reaches the precise discharging pipe, Photoelectric C is lit, the bag guiding baffle extends out to block this packaging bag, the lifting cylinder descends, and the finger cylinder drives the bag supporting plate to open the bag mouth, and at the same time, the material is fed to complete the filling of the first bag of packaged material.

[0030] The working method of the above-mentioned secondary high-speed precise material filling machine is as follows:

[0031] Step 1: Manually put the packaging bag on multiple main discharging pipes and fix it on the main discharging pipes through the bag clamping frame. The packaging bag is in a suspended state;

[0032] Step 2: The material is put into the main material bin, and the precise feeding motor drives the precise feeding auger to rotate, and sends the material into the precise feeding bin for temporary storage;

[0033] At the same time, the power source drives the main auger to rotate through the belt pulley, and conveys the material through the main conveying pipe into the main discharging pipe, and then into the packaging bag;

[0034] Step 3: Through program setting, the first weighing sensor transmits the weight of the material filled in the packaging bag to the machine control center, and stops filling after filling the set weight;

[0035] Step 4: The packaging bag at the weight-checking belt falls onto the weight-checking belt or the main conveying belt conveys the packaging bag to the weight-checking belt; after Photoelectric A at the weight-checking belt is lit, the weight is checked; at the same time, the previous main discharging pipe position fills the next packaging bag; the weight-checking belt weighs and feeds back the weight, the system calculates the weight difference between the current bagged weight and the total weight, and then the precise feeding conveying pipe discharges the material into the outer pipe. After the weight difference transmitted by the second weighing sensor reaches the set value, it is stored at the outer pipe;

[0036] There is no induction at Photoelectric A, and there is induction at Photoelectric B. The conveyor belt starts to transport the next packaging bag to the weighing belt;

[0037] Step 5: After the packaging bag is transported to the precision feeding belt and reaches the precision discharging pipe, Photoelectric C lights up, the bag guiding baffle extends to block this packaging bag, the lifting cylinder descends, and the finger cylinder drives the bag supporting plate to open the mouth of the packaging bag. At the same time, the material is fed to complete the filling of the first bag of packaging material; the precision feeding belt does not stop. At this time, if the next packaging bag lights up Photoelectric D, the precision feeding belt stops. After the first packaging bag is filled, the bag guiding baffle descends after receiving the signal, and at the same time, the precision feeding belt is started to transport the next packaging bag to the position of Photoelectric C, and the bag guiding baffle extends to intercept and wait for feeding;

[0038] Between Step 3 and Step 4 described above, when there is a bag pounding cylinder, after the filling is completed, the bag pounding cylinder drives the frame plate, the movable pipe, and the bag clamping frame to fall and lift for bag pounding.

[0039] The beneficial effects of the present invention:

[0040] The secondary high-speed and precise material filling machine provided by the present invention, when in use, calculates the weight difference between the material weight in the packaging bag and the total weight at the weighing belt station, and the precision feeding station has already prepared the weight difference in advance. After arriving, the material can be directly fed; when cooperating with the rough feeding: first, the rough feeding and filling are carried out through the main conveying auger, and then the packaging bag is conveyed to the weighing belt by the main conveyor belt. The weight difference between the material weight in the packaging bag and the total weight is calculated, and the precision feeding station has already prepared the weight difference in advance. After arriving, the material can be directly fed, and the previous station can continue to carry out rough feeding; compared with only using one filling station to complete the steps of "rough feeding", "medium feeding", and "fine feeding", the filling time is greatly saved, and the production efficiency and precision are improved; at the same time, a splash-proof net can be installed at the lower part of the precision discharging pipe to make the material fall more gently without splashing and make the feeding more accurate. Brief Description of the Drawings

[0041] Figure 1 is a schematic structural diagram of the present invention;

[0042] Figure 2 is a schematic structural diagram of the other side of the present invention;

[0043] Figure 3 is a schematic internal structural diagram of the present invention;

[0044] Figure 4 is a schematic structural diagram of the precision feeding and filling assembly of the present invention;

[0045] Figure 5 is a schematic structural diagram of the precision feeding and filling assembly of the present invention;

[0046] Figure 6Schematic diagram of the weight-checking belt structure in the present invention;

[0047] In the figure: 1, main material bin; 2, main conveying pipe; 3, main discharge pipe; 4, belt pulley; 5, main transport belt; 6, precision feeding inlet pipe; 7, precision feeding bin; 8, precision feeding conveying pipe; 9, precision feeding and adding belt; 10, weight-checking belt; 11, stirring shaft; 12, movable pipe; 13, support plate; 14, bag clamping rack; 15, bag clamping cylinder; 16, weighing sensor 1; 17, bag pressing cylinder; 18, bottom plate; 19, weighing sensor 2; 20, upper plate; 21, fixing rack; 22, lifting cylinder; 23, finger cylinder; 24, bag supporting plate; 25, bag guiding baffle; 26, Photoelectric A; 27, Photoelectric B; 28, Photoelectric C; 29, Photoelectric D. Detailed implementation mode

[0048] The technical solution of the present invention will be further explained and illustrated through the detailed implementation mode below.

[0049] Embodiment 1

[0050] Referring to the attached drawings, the present invention provides a secondary high-speed and precise material filling machine, which is characterized in that it includes a weight-checking belt 10, a precision filling component and a precision feeding and adding belt 9;

[0051] A precision feeding auger is installed in the precision feeding inlet pipe 6, and a precision feeding motor is drivingly connected to the precision feeding auger;

[0052] The precision feeding inlet pipe 6 is connected to the precision feeding bin 7. A precision feeding inlet is provided at the lower part of the precision feeding bin 7. A precision feeding conveying pipe 8 is installed below the precision feeding inlet. A precision feeding discharge pipe is installed on the lower side of one end of the precision feeding conveying pipe 8; A precision feeding and adding belt 9 is provided below the precision feeding discharge pipe;

[0053] A precision feeding auger is installed inside the precision feeding conveying pipe 8, and one end of the precision feeding auger is drivingly connected to a precision feeding discharge motor;

[0054] The belt in front of the precision feeding and adding belt 9 is connected to the weight-checking belt 10;

[0055] Photoelectric switches are respectively installed at the weight-checking belt 10 and the precision feeding and adding belt 9.

[0056] A splash-proof net is installed below the precision feeding discharge pipe; The precision feeding discharge pipe is of a sleeve structure. A fixing rack 21 is connected to the outer pipe. A lifting cylinder 22 is connected to the fixing rack 21, and a finger cylinder 23 is connected to the fixing rack 21. Two bag supporting plates 24 are connected in the finger cylinder 23.

[0057] A precision feeding and adding belt 9 is provided below the precision feeding discharge pipe; At the end position of the precision feeding and adding belt 9, a bag guiding baffle 25 is provided; The rising and falling of the bag guiding baffle 25 are controlled by a cylinder.

[0058] Example 2

[0059] In the present invention, in the weight-checking belt 10, it includes feet, a bottom plate 18, a second weighing sensor 19, an upper plate 20 and a conveyor belt assembly;

[0060] Feet are installed on the bottom plate 18, the second weighing sensor 19 is installed on the upper side of the bottom plate 18, the upper plate 20 is installed on the upper side of the second weighing sensor 19, and the conveyor belt assembly is installed on the upper plate 20.

[0061] Example 3

[0062] Referring to the attached drawings, the present invention provides a secondary high-speed and precise material filling machine, which is characterized in that it includes multiple groups of main discharge filling components;

[0063] The main discharge filling component includes a main material bin 1, and a level gauge is installed in the main material bin 1; a main inlet is installed at the lower part of the main material bin 1, a main conveying pipe 2 is installed at the bottom of the main inlet, the lower part of the main conveying pipe 2 is fixedly installed on the main filling frame, and one end of the main conveying pipe 2 is installed with a main discharge pipe 3; a main auger is installed inside the main conveying pipe 2; one end of the main auger is installed with a belt pulley 4; on the side of the main auger where the belt pulley 4 is installed, a sprocket is also installed; the sprocket is connected with a stirring shaft 11, and the stirring shaft 11 is installed in the main inlet.

[0064] A main transport belt 5 is arranged at the lower part of the main discharge pipe 3;

[0065] The main discharge filling component of the last station is adjacent to the precise feeding filling component;

[0066] A precise feeding inlet pipe 6 is installed on the main material bin 1 of the last station, a precise feeding auger is installed in the precise feeding inlet pipe 6, the precise feeding auger extends into the main material bin 1, and a precise feeding motor is drivingly connected to the precise feeding auger;

[0067] The precise feeding inlet pipe 6 is connected to a precise feeding bin 7, and a stirring shaft 11 and a level gauge are also installed in the precise feeding bin 7; the stirring shaft 11 is connected with a stirring motor; a precise feeding inlet is arranged at the lower part of the precise feeding bin 7, a precise feeding conveying pipe 8 is installed under the precise feeding inlet, and a precise feeding outlet pipe is installed on the lower side of one end of the precise feeding conveying pipe 8; a splash-proof net is installed at the lower part of the precise feeding outlet pipe; the precise feeding outlet pipe is of a sleeve structure, a fixed frame 21 is connected to the outer pipe, a lifting cylinder 22 is connected to the fixed frame 21, and a finger cylinder 23 is connected to the fixed frame 21, and two bag-supporting plates 24 are connected in the finger cylinder 23.

[0068] There is a precise feeding belt 9 provided on the lower side of the precise feeding discharge pipe; at the end position of the precise feeding belt 9, there is a bag guiding baffle 25; the rising and falling of the bag guiding baffle 25 are controlled by a cylinder.

[0069] A precise feeding auger is installed inside the precise feeding conveying pipe 8, and one end of the precise feeding auger is drivingly connected to a precise feeding discharge motor;

[0070] The main transportation belt 5 provided at the lower part of the main discharge pipe 3 of the last station is a weight-checking belt 10;

[0071] Photoelectric switches are respectively installed at the first main transportation belt 5, the weight-checking belt 10 and the precise feeding belt 9.

[0072] Embodiment 4

[0073] On the basis of the structure of Embodiment 3, the following structure is further provided: An activity pipe 12 is installed at the lower part of the main discharge pipe 3, and the activity pipe 12 is connected to the main discharge pipe 3 by a flexible pipe; A support plate 13 and a weighing plate are installed on the activity pipe 12, a bag clamping frame 14 is connected to the lower side of the support plate 13, a bag clamping cylinder 15 is installed in the bag clamping frame 14, and the bag clamping frame 14 is in movable contact with the lower side of the activity pipe 12; A weighing sensor 16 is in contact with the weighing plate; The weighing sensor 16 is fixed on the main frame. The extending end of a bag pounding cylinder 17 is connected to the support plate 13, and the bag pounding cylinder 17 is installed on both sides of the main discharge pipe 3.

[0074] Embodiment 5

[0075] The working method of the secondary high-speed and precise material filling machine in Embodiment 1 is as follows:

[0076] Step 1: The precise feeding motor drives the precise feeding auger to rotate, and sends the material to the precise feeding bin 7 for temporary storage;

[0077] Step 2: The packaging bag at the weight-checking belt 10 falls onto the weight-checking belt 10; after the A photoelectric 26 at the weight-checking belt 10 is lit, the weight is checked; the weight-checking belt 10 weighs and feeds back the weight, the system calculates the weight difference between the current bagged weight and the total weight, and then the precise feeding conveying pipe 8 discharges the material into the outer pipe, and after the weight difference transmitted by the weighing sensor 2 reaches the set value, it is stored at the outer pipe;

[0078] Step 3: After the packaging bag is transported to the precise feeding belt 9 and reaches the precise feeding discharge pipe, the C photoelectric 28 is lit, the bag guiding baffle 25 extends out to block this packaging bag, the lifting cylinder 22 descends, and the finger cylinder 23 drives the bag supporting plate 24 to open the bag mouth, and at the same time, the material is fed to complete the filling of the first bag of packaged material.

[0079] Embodiment 6

[0080] The working method of the secondary high-speed and precise material filling machine in Embodiment 4 is as follows:

[0081] The photoelectric switch at the 10th position of the weight-checking belt 10 is Photoelectric A 26, the photoelectric switch at the 5th position of the first main transportation belt 5 is Photoelectric B 27, the photoelectric switch on the fine-feeding belt 9, the one adjacent to Photoelectric A 26 is Photoelectric D 29, and the other one at the fine-discharge pipe is Photoelectric C 28; this embodiment gives the working method when there are two groups of main discharge filling components.

[0082] Step 1: Manually put the packaging bag on multiple main discharge pipes 3 and fix it on the main discharge pipe 3 through the bag clamping frame 14, and the packaging bag is in a hoisting state;

[0083] Step 2: The material is put into the main material bin 1, and the fine-feeding motor drives the fine-feeding auger to rotate, sending the material to the fine-feeding bin 7 for temporary storage;

[0084] Meanwhile, the power source drives the main auger to rotate through the belt pulley 4, sending the material through the main conveying pipe 2 into the main discharge pipe 3 and then into the packaging bag;

[0085] Step 3: Through program setting, the weight sensor 16 transmits the weight of the material filled in the packaging bag to the machine control center, and after filling the set weight, the filling stops;

[0086] Step 4: The packaging bag at the weight-checking belt 10 falls onto the weight-checking belt 10 or the main transportation belt 5 transports the packaging bag to the weight-checking belt 10; after Photoelectric A 26 at the weight-checking belt 10 is lit, the weight is checked; meanwhile, the next packaging bag is filled at the position of the previous main discharge pipe 3; the weight-checking belt 10 weighs and feeds back the weight, and the system calculates the weight difference between the current bagged weight and the total weight, and then the fine-feeding conveying pipe 8 discharges the material into the outer pipe. After the weight difference transmitted by the weight sensor 2 reaches the set value, it is stored at the outer pipe;

[0087] When there is no induction from Photoelectric A 26 and there is induction from Photoelectric B 27, the transportation belt starts to transport the next packaging bag to the weight-checking belt 10;

[0088] Step 5: After the packaging bag is transported to the fine-feeding belt 9 and reaches the fine-discharge pipe, Photoelectric C 28 is lit, the bag guiding baffle 25 extends out to block this packaging bag, the lifting cylinder 22 descends, and the finger cylinder 23 drives the bag supporting plate 24 to open the mouth of the packaging bag, and at the same time, the material is fed to complete the filling of the first bag of packaged material; the fine-feeding belt 9 does not stop. At this time, if the next packaging bag lights up Photoelectric D 29, the fine-feeding belt 9 stops. After the first packaging bag finishes feeding, the bag guiding baffle 25 descends after receiving the signal, and at the same time, the fine-feeding belt 9 is started to transport the next packaging bag to the position of Photoelectric C 28, and the bag guiding baffle 25 extends out to intercept and waits for feeding.

[0089] The specific photoelectric switch feedback signal process is as follows:

[0090] Weighing belt 10: With the lighting of A optoelectronic device 26 as the weighing and start condition, the conveying belt transports the first packaging bag away after the weighing belt 10 completes the weighing of the first packaging bag until the disappearance of A optoelectronic device 26 and the presence or absence of B optoelectronic device 27 as the start condition (the prior lighting of B optoelectronic device 27 is invalid). When the first packaging bag is weighed, the weighing belt 10 is started to transport the first packaging bag to the precise feeding belt 9. When the disappearance signal of A optoelectronic device 26 is received, the weighing belt 10 keeps running. Wait until B optoelectronic device 27 appears, then start the conveying belt with a time delay. When the second packaging bag reaches A optoelectronic device 26, it pauses. After weighing is completed, it is started to transport the second packaging bag to the precise feeding belt 9 to complete this process!

[0091] When the precise feeding belt 9 and the weighing belt 10 are started simultaneously, when the first packaging bag lights up C optoelectronic device 28, the bag guiding baffle 25 is started to intercept and wait for feeding. The precise feeding belt 9 keeps running. At this time, if the B package comes and lights up optoelectronic device D, the precise feeding belt 9 stops. Wait until the first packaging bag finishes feeding, the interception is released. If the precise feeding belt 9 stops, start the precise feeding belt 9 to convey the second packaging bag to C optoelectronic device 28 and be intercepted, waiting for feeding. During specific use, when C optoelectronic device 28 lights up, the bag guiding baffle 25 must intercept. When the precise feeding belt 9 is running, if both C optoelectronic device 28 and D optoelectronic device 29 have signals, it stops running. When the weight in the outer pipe does not reach the supplementary feeding weight, even if C optoelectronic device 28 senses the packaging bag, it will not feed.

[0092] In the steps of Embodiment 4, between step 3 and step 4, when there is a bag punching cylinder 17, after filling is completed, the bag punching cylinder 17 drives the frame plate 13, the movable pipe 12, and the bag clamping frame 14 to fall and lift for bag punching.

Claims

1. A secondary high-speed and precise material filling machine, characterized in that: It includes a check weighing belt, a fine feeding filling component and a fine feeding belt; A fine feeding auger is installed in the fine feeding pipe, and a fine feeding motor is connected to the fine feeding auger; The fine feed feeding pipe is connected to the fine feed bin, a fine feed inlet is provided at the lower part of the fine feed bin, a fine feed conveying pipe is installed at the lower part of the fine feed inlet, a fine feed discharging pipe is installed at the lower side of one end of the fine feed conveying pipe; a fine feed feeding belt is provided at the lower side of the fine discharging pipe; A fine feeding auger is installed inside the fine feeding conveying pipe, and one end of the fine feeding auger is transmission-connected to a fine feeding motor; The front connecting belt of the fine feeding belt is the check weight belt; Photoelectric switches are installed on the checkweighing belt and the fine feeding belt respectively.

2. A secondary high-speed and precise material filling machine according to claim 1, characterized in that: The weighing belt includes a base, a bottom plate, a weighing sensor 2, an upper plate and a conveyor belt assembly; A foot is installed on the bottom plate, a weighing sensor 2 is installed on the upper side of the bottom plate, an upper plate is installed on the upper side of the weighing sensor 2, and a conveyor belt assembly is installed on the upper plate.

3. A secondary high-speed and precise material filling machine according to claim 1, characterized in that: The fine feeding pipe is a sleeve structure, a fixing frame is connected to the outer pipe, a lifting cylinder is connected to the fixing frame, a finger cylinder is connected to the fixing frame, and two bag supporting plates are connected in the finger cylinder.

4. The secondary high-speed and precise material filling machine according to claim 1, characterized in that: A bag-moving baffle is arranged at the end of the fine feeding belt; the rising and falling of the bag-moving baffle is controlled by a cylinder.

5. The secondary high-speed and precise material filling machine according to claim 1, characterized in that: Used in conjunction with the secondary high-speed precision material filling machine, there are multiple sets of main discharge filling components; The main discharging and filling assembly comprises a main silo, a main feeding port is installed at the lower part of the main silo, a main conveying pipe is installed at the bottom of the main feeding port, the lower part of the main conveying pipe is fixedly installed on the main filling frame, a main discharging pipe is installed at one end of the main conveying pipe; a main auger is installed inside the main conveying pipe; a pulley is installed at one end of the main auger; A main transport belt is provided at the lower part of the main discharge pipe; The main discharging filling component of the last station is adjacent to the fine feeding filling component; A fine feed pipe is installed on the main material bin of the last station, and the fine feed auger extends to the inside of the main material bin; The main transport belt set at the bottom of the main discharge pipe of the last station is a checkweight belt; A photoelectric switch is installed on the main conveyor belt.

6. A secondary high-speed and precise material filling machine according to claim 5, characterized in that: A sprocket is installed on one side of the main auger with a pulley; a stirring shaft is connected to the sprocket and installed in the main feed port; a stirring shaft is also installed in the fine feed bin and connected to a stirring motor.

7. The secondary high-speed and precise material filling machine according to claim 5, characterized in that: A movable tube is installed at the lower part of the main discharge pipe, and the movable tube and the main discharge pipe are connected by a hose; a frame plate and a weighing plate are installed on the movable tube, a bag clamping frame is connected to the lower side of the frame plate, a bag clamping cylinder is installed in the bag clamping frame, and the bag clamping frame is movably in contact with the lower side of the movable tube; a weighing sensor is installed in contact with the weighing plate.

8. The secondary high-speed and precise material filling machine according to claim 7, characterized in that: The frame plate is connected with a bag-blowing cylinder, which is installed on both sides of the main discharge pipe; and level meters are installed in the main material bin and the fine feed bin respectively.

9. A working method of a secondary high-speed precision material filling machine according to claim 1, characterized in that: Here are the steps: Step 1: The fine feeding motor drives the fine feeding auger to rotate and send the material to the fine feeding bin for temporary storage; Step 2: The packaging bag at the checkweighing belt falls onto the checkweighing belt; after the A photoelectric device at the checkweighing belt lights up, the weight is checked; the checkweighing belt weighs and feeds back the weight, and the system calculates the weight difference between the current bag weight and the total weight, and then the material is discharged from the conveying tube to the outer tube. After the second weighing sensor transmits the weight difference, it is stored at the outer tube; Step 3: After the packaging bag is transported to the fine feeding belt, when it reaches the fine feeding discharge pipe, the C photoelectric light lights up, the bag feeding baffle extends to block the packaging bag, the lifting cylinder descends, and the finger cylinder drives the bag support plate to open the packaging bag mouth, and at the same time, the material is discharged to complete the filling of the first bag of packaging materials.

10. The working method of the secondary high-speed and precise material filling machine according to claim 9, characterized in that: Here are the steps: Step 1: Manually put the packaging bag on multiple main discharge pipes and fix it on the main discharge pipes through the bag clamping frame. The packaging bag is in a hoisting state; Step 2: The material is put into the main silo, and the fine feeding motor drives the fine feeding auger to rotate, and the material is sent to the fine feeding silo for temporary storage; At the same time, the power source drives the main auger to rotate through the pulley, and the material is transported to the main discharge pipe through the main conveying pipe, and then enters the packaging bag; Step 3: Through program setting, the weighing sensor 1 transmits the weight of the filling material in the packaging bag to the machine control center, and stops filling after the set weight is filled; Step 4: The packaging bag at the check-weighing belt falls onto the check-weighing belt or the main transport belt transports the packaging bag to the check-weighing belt; after the A photoelectric device at the check-weighing belt lights up, the weight is checked; at the same time, the main discharge pipe at the previous position fills the next packaging bag; the check-weighing belt weighs and feeds back the weight, and the system calculates the weight difference between the current bag weight and the total weight, and then the fine feed conveyor pipe discharges the material into the outer tube. After the weight difference transmitted by the second weighing sensor is reached, it is stored at the outer tube; When A photoelectric sensor has no induction and B photoelectric sensor has induction, the conveyor belt starts to transport the next packaging bag to the checkweighing belt; Step 5: After the packaging bag is transported to the fine feeding belt, when it reaches the fine feeding discharge pipe, the C photoelectric light is on, the bag feeding baffle extends to block the packaging bag, the lifting cylinder descends, and the finger cylinder drives the bag support plate to open the bag mouth, and at the same time, the material is discharged to complete the filling of the first bag of packaging materials; the fine feeding feeding belt does not stop. At this time, if the next packaging bag lights up the D photoelectric, the fine feeding feeding belt stops, and the first packaging bag is fed. After the feeding is completed, the bag feeding baffle descends after receiving the signal, and the fine feeding feeding belt is started at the same time, and the next packaging bag is transported to the C photoelectric position, and the bag feeding baffle extends to intercept and wait for feeding; Between step 3 and step 4, when a bag-blowing cylinder is provided, after filling is completed, the bag-blowing cylinder drives the frame plate, movable tube, and bag clamping frame to fall and rise to blow the bag.

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