Automatic scale adding and rechecking device

Abstract

The utility model is applicable to the technical field of weighing and packaging, and provides an automatic scale adding and rechecking device, which comprises a plurality of bins, four weighing sensors are annularly arranged on each bin, a connecting pipeline is arranged below the bins, material adding connectors in one-to-one correspondence with the bins are arranged on the connecting pipeline, an automatic scale adding spiral module is connected onto the connecting pipeline, and the automatic scale adding spiral module is connected with the weighing sensors. A belt is arranged below the connecting pipeline, and a high-precision weighing sensor for secondary weighing of the ton bag is arranged above the belt, so that materials in the ton bag are metered twice to achieve the function of accurate bagging, the materials are added to the ton bag through spiral feeding of the adding scale during secondary metering of the ton bag, the process of manual adding is avoided, the labor intensity of workers is reduced, and the production efficiency is improved. The ton bag filling accuracy and efficiency are improved, the application range is wide, and the filling efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing and packaging, in particular to an automatic weighing and rechecking device. Background Art

[0002] During the bagging process of large-tonnage bags, common automated metering devices can achieve basic weighing and packaging of materials. In the use process, traditional automatic metering devices usually perform packaging after single metering. During the bagging process, affected by the set weight, the final loading speed is often reduced or the accuracy of the materials loaded in the final tonnage bag is not accurate enough.

[0003] The patent with the application number 202021983488.1 discloses a micro-addition weighing device for an electronic quantitative packaging scale, including a feed hopper, a vibrating hopper, a micro-addition hopper, a vibration-proof device, and vibration pleating, which sucks back the vibration force generated during the operation of the vibrating hopper to avoid damage and loosening of the connection structure at the inlet of the vibrating hopper. However, in the actual use process, there is a problem of improving the filling speed of materials while ensuring accuracy.

[0004] As known from the above, there are obviously inconveniences and defects in the prior art in actual use, so it is necessary to improve. In view of the above problems, an automatic weighing and rechecking device is proposed. Summary of the Utility Model

[0005] Aiming at the above defects, the purpose of the utility model is to provide an automatic weighing and rechecking device, which realizes the function of accurate bagging by weighing the materials in the tonnage bag twice, improves the accuracy and efficiency of tonnage bag filling, and provides an automatic weighing and rechecking device.

[0006] To achieve the above purpose, the utility model provides an automatic weighing and rechecking device, including a plurality of bins, four weighing sensors are annularly arranged on each bin, a connecting pipe is arranged below the bin, a feeding connecting port corresponding to the bin is arranged on the connecting pipe, and an automatic weighing screw module is connected to the connecting pipe.

[0007] A belt is arranged below the connecting pipe, and a high-precision weighing sensor for weighing the tonnage bag twice is arranged above the belt.

[0008] According to the automatic weighing and rechecking device of the utility model, a rotating shaft is arranged in each of the feeding connecting ports, the rotating shaft is rotatably connected to the pipe wall of the connecting pipe, a baffle is arranged on the rotating shaft, the two rotating shafts are perpendicular to each other, bevel gears are arranged on one side of the two rotating shafts close to each other, the two bevel gears are meshed with each other, and the two baffles on the two rotating shafts are perpendicularly arranged on the rotating shafts.

[0009] According to the automatic weighing and re-inspection device described in the utility model, a silo outlet is provided on the lower end surface of the silo, the connecting pipe and the weighing sensor are fixed on the sensor support frame, and a filling connection port and a secondary filling connection port are provided above the connecting pipe.

[0010] According to the automatic weighing and re-inspection device described in the utility model, an automatic weighing spiral module is provided on the sensor support frame, and the automatic weighing spiral module includes a weighing spiral bracket connected to the sensor support frame, and the weighing spiral bracket is provided with a weighing spiral silo and a weighing spiral, and the weighing spiral is connected to the secondary material adding connection port of the connecting pipeline.

[0011] According to the automatic weighing and re-inspection device described in the utility model, the weighing sensors are symmetrically arranged with respect to the silo, and the weighing sensors are all fixed on the side walls of the silo.

[0012] According to the automatic weighing and re-inspection device of the utility model, a silo support frame is provided above the sensor support frame, and a plurality of silos are provided on the silo support frame.

[0013] The utility model provides an automatic weighing and re-inspection device, which has the following beneficial effects:

[0014] 1. The material in the ton bag is measured twice to achieve the function of accurate packaging. The material is measured once before entering the packaging bag. The material filling speed before the first measurement is high. When the ton bag is measured twice, the material is added to the ton bag through the weighing screw feeding to avoid the process of manual adding, improve the accuracy and efficiency of ton bag filling, and have a wide range of applications;

[0015] 2. In the process of weighing the ton bag once, a weighing sensor is used to calculate the difference between the weights of the silo before and after the filling of the ton bag and obtain the weighing value of the ton bag once. By weighing the silo, the time of measurement and detection is optimized, and the efficiency of ton bag measurement and filling is improved;

[0016] 3. A rotatable baffle is installed in the connecting pipe between the silo and the ton bag filling to avoid possible blockage when the material flows through the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural diagram of the automatic weighing silo module;

[0019] Figure 3 This is a schematic diagram of the structure of the weighing spiral silo;

[0020] Figure 4 It is a structural schematic diagram of the connecting pipeline;

[0021] Figure 5 Schematic diagram of the structure at the baffle

[0022] In the figure: 1 - Automatic weighing bin module, 11 - Bin support frame, 12 - Sensor support frame, 101 - Bin, 102 - Weighing sensor, 103 - Bin outlet, 2 - Belt re-inspection module, 201 - Belt, 202 - High-precision weighing sensor, 203 - Gripper, 3 - Automatic weighing screw module, 301 - Weighing screw bin, 302 - Weighing screw support, 303 - Weighing screw, 4 - Connecting pipe, 401 - Feeding connection port, 402 - Secondary feeding connection port, 5 - Rotating shaft, 501 - Rotating block, 502 - Baffle, 503 - Bevel gear. Specific implementation mode

[0023] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model.

[0025] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] See Figures 1 to 5, the present utility model provides an automatic weighing and rechecking device, including an automatic weighing bin 101 module. The automatic weighing bin 101 module includes a bin 101 support frame. A number of bins 101 are provided on the bin 101 support frame. The bins 101 are filled with materials. The bins 101 are all fixed on the bin 101 support frame. Four weighing sensors 102 are circumferentially arranged around the bin 101. The weighing sensors 102 are symmetrically arranged with respect to the bin 101. A sensor support frame 12 is provided below the bin 101 support frame. The weighing sensors 102 are fixedly arranged on the sensor support frame 12. The bin 101 support frame is used to support and fix a number of bins 101, so that the weighing sensors 102 on the sensor support frame 12 only weigh and detect the materials in the bin 101. The four weighing sensors 102 calculate the average value to obtain the values before and after discharging of the bin 101, which is recorded as the first measurement value. When the first measurement value is close to the set value of the ton bag (the ton bag filling set value is the standard weight that a single ton bag should be filled. Suppose the set value of the ton bag is 1000 kg. When the ton bag moves below the bin 101, the valve of the bin 101 opens for rapid filling. The four weighing sensors 102 detect the weight change of the bin 101 and the materials in the bin. When the weighing sensors 102 detect that the weight of the bin 101 decreases by 950 - 990 kg, the valve of the bin 101 quickly closes), the valve of the bin 101 closes to stop filling.

[0027] Further, the four weighing sensors 102 can be arranged on the four side walls of the bin 101 or on the four side edges of the bin 101, so that the weighing sensors 102 are convenient for installation and disassembly.

[0028] See Figure 1 、 Figure 2 and Figure 4 , specifically, a bin 101 outlet is provided on the lower end face of the bin 101. A connecting pipe 4 is provided below the bin 101 outlet. A feeding connection port 401 corresponding to the bin 101 is provided on the connecting pipe 4. A pipe is provided between the feeding connection port 401 and the bin 101 outlet. The materials in the bin 101 are transported through the bin 101 outlet and the feeding connection port 401 to the connection valve below the connecting pipe 4. A ton bag is sleeved outside the connection valve, and the filling of the materials is realized through the connection valve.

[0029] See Figure 2 and Figure 4 , specifically, the connecting pipe 4 is fixed on the sensor support frame 12. A feeding connection port 401 and a secondary feeding connection port 402 are provided above the connecting pipe 4. A ton bag is provided below the connecting pipe 4. The connecting pipe 4 fills the materials entering from the feeding connection port 401 and the secondary feeding connection port 402 into the ton bag through the connection valve.

[0030] Further, a rotating shaft 5 is disposed through each of the feeding connection ports 401. The rotating shaft 5 is rotatably connected to the pipe wall of the connecting pipe 4. A retaining piece 502 is provided on the rotating shaft 5. The retaining piece 502 is dimensionally matched with the feeding connection port 401. When the retaining piece 502 is parallel to the feeding connection port 401, it blocks the feeding connection port 401, preventing the material in the feeding connection port 401 from flowing into the ton bag. When the retaining piece 502 is parallel to the feeding connection port 401, the material in the feeding connection port 401 normally flows into the ton bag.

[0031] See Figure 4 and Figure 5 Preferably, when the two feeding connection ports 401 on the connecting pipe 4 are perpendicular to each other, the rotating shafts 5 provided in the feeding connection ports 401 are perpendicular to each other. Tapered gears 503 are provided on the sides of the two rotating shafts 5 close to each other. The two tapered gears 503 are meshed with each other. The two retaining pieces 502 on the two rotating shafts 5 are perpendicularly arranged, so that only one feeding connection port 401 in the connecting pipe 4 is in communication with the connecting valve, and the other feeding connection port 401 is blocked by the retaining piece 502 and the material cannot enter. A rotating block 501 is provided at one end of one of the rotating shafts 5 away from the tapered gear 503. By rotating the rotating block 501, the two retaining pieces 502 are rotated in the feeding connection ports 401, realizing the opening of one feeding connection port 401 and the closing of the other feeding connection port 401. At the same time, the connecting pipe 4 is dredged by the retaining piece 502, preventing the connecting pipe 4 from being blocked and affecting the filling of the material.

[0032] See Figure 1 Specifically, a belt 201 recheck module is provided below the silo 101. The belt 201 recheck module includes a recheck belt 201 bracket disposed below the sensor support frame 12. A gripper 203 is connected to the recheck belt 201 bracket. The gripper 203 is used for clamping the ton bag. A belt 201 and a high-precision weighing sensor 202 are provided on the recheck belt 201 bracket. The high-precision weighing sensor 202 is used for accurately detecting the weight of the ton bag. The secondary measurement value detected by the high-precision weighing sensor 202 is compared with the set value of the ton bag, and the ton bag is filled by using the automatic weighing screw 303 module (the secondary measurement value detected by the high-precision weighing sensor 202 is compared with 1000 kg for weight difference comparison, and the feeding screw slowly adds material until the weight of the ton bag reaches 1000 kg), so that the weight of the material in the ton bag reaches the set value of the ton bag. Using the high-precision weighing sensor 202 for secondary measurement improves the filling speed of the ton bag and has high accuracy, and the weighing accuracy of the ton bag reaches 3‰.

[0033] See Figure 1 、 Figure 2 and Figure 3, preferably, an automatic weighing screw 303 module is provided on the sensor support frame 12. The automatic weighing screw 303 module includes a weighing screw 303 support bracket connected to the sensor support frame 12. A weighing screw 303 bin 101 and a weighing screw 303 are provided on the weighing screw 303 support bracket. The weighing screw 303 bin 101 is filled with materials. The weighing screw 303 is connected to the secondary feeding connection port 402 of the connecting pipe 4. Feeding by the weighing screw 303 is a mature prior art and will not be elaborated here. The weighing screw 303 transports the materials in the weighing screw 303 bin 101 to the ton bag through the connecting pipe 4.

[0034] The specific implementation process of the present utility model is as follows:

[0035] When the ton bag moves below the bin 101, the valve of the bin 101 is opened for rapid loading. Four weighing sensors 102 detect the change in the weight of the materials in the bin 101. The weighing sensors 102 calculate how much materials have been reduced in the current bin 101 by monitoring the difference before and after discharging of a single bin 101, which is recorded as a primary measurement value. When the primary measurement value approaches the preset value, the materials in the bin 101 stop being transported. The gripper 203 clamps the ton bag, and the high-precision weighing sensor 202 measures the materials in the current ton bag. The high-precision weighing sensor 202 obtains a secondary measurement value. The ton bag is filled with materials through the materials in the automatic weighing screw 303 module until the secondary measurement value is equal to the standard value of the ton bag. The automatic weighing screw 303 module ends the filling. The filled ton bag falls on the conveyor belt 201 and is transported to the next work fixture.

[0036] The utility model provides an automatic weighing and re-checking device, including an automatic weighing silo module and a high-precision weighing sensor and other structures that cooperate with each other, measure the materials in the ton bag twice to achieve the function of accurate packaging, measure once before the material enters the packaging bag, and the material filling speed before the first measurement is high. When the ton bag is measured for the second time, the material is added to the ton bag through the weighing spiral feeding, which avoids the process of manual adding, improves the accuracy and efficiency of ton bag filling, and has a wide range of applications; the baffle plate set in the material adding connection port has a blocking effect, so that the material in the material adding connection port will not flow into the ton bag, and the connecting pipe is unblocked by the baffle plate to avoid clogging of the connecting pipe and affecting the filling of the material; In summary, the beneficial effects of the utility model are as follows: :The material in the ton bag is measured twice to achieve the function of accurate packaging. The material is measured once before entering the packaging bag. The material filling speed before the first measurement is high. When the ton bag is measured for the second time, the material is added to the ton bag through the adding scale screw to avoid the process of manual adding, improve the accuracy and efficiency of ton bag filling, and have a wide range of applications; in the process of measuring the ton bag once, a weighing sensor is used to subtract the weight of the silo before and after unloading the material to obtain the first measurement value of the ton bag. By measuring the silo, the measurement detection time is optimized, and the efficiency of ton bag measurement and filling is improved; a rotatable baffle is set in the connecting pipe between the silo and the ton bag filling to avoid possible blockage when the material flows through the connecting pipe.

[0037] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. Automatic weighing replenishment and re-inspection device, characterized in that, It includes several silos, and four weighing sensors are annularly arranged around each silo. A connecting pipe is provided below the silo, and a feeding connection port corresponding to each silo is provided on the connecting pipe. An automatic weighing screw module is connected to the connecting pipe. A belt is provided below the connecting pipe, and a high-precision weighing sensor for weighing the ton bag a second time is provided above the belt.

2. The automatic weighing supplement and re-inspection device according to claim 1, characterized in that A rotating shaft is inserted through each of the feeding connection ports. The rotating shaft is rotatably connected to the pipe wall of the connecting pipe. A baffle is provided on the rotating shaft. The two rotating shafts are perpendicular to each other. Tapered gears are provided on the sides of the two rotating shafts close to each other. The two tapered gears mesh with each other. The two baffles on the two rotating shafts are perpendicularly arranged on the rotating shafts.

3. The automatic weighing replenishment and re-inspection device according to claim 1, wherein, A silo outlet is provided on the lower end surface of the silo. The connecting pipe and the weighing sensor are fixed on the sensor support frame. A feeding connection port and a secondary feeding connection port are provided above the connecting pipe.

4. The automatic weighing replenishment and re-inspection device according to claim 3, characterized in that, An automatic weighing screw module is provided on the sensor support frame. The automatic weighing screw module includes a weighing screw support frame connected to the sensor support frame. A weighing screw silo and a weighing screw are provided on the weighing screw support frame. The weighing screw is connected to the secondary feeding connection port of the connecting pipe.

5. The automatic weight-adding and re-inspection device according to claim 1, wherein The weighing sensors are symmetrically arranged with respect to the silo, and the weighing sensors are all fixed on the side wall of the silo.

6. The automatic weighing replenishment and re-inspection device according to claim 4, characterized in that, A silo support frame is provided above the sensor support frame, and several silos are provided on the silo support frame.

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