Belt type bidirectional feeding constant feeder

Abstract

The utility model discloses a belt type two-way feeding constant feeder which comprises a machine frame, an annular belt is installed on the machine frame, a driving roller and a driven roller which can support the belt are arranged at the two ends of the inner side of the belt, the driving roller can drive the belt to move, and the driving roller and the driven roller are consistent in height. A feeding port is formed in the machine frame and located above the dead center of the belt, two weighing modules capable of weighing the weight of materials on the belt are arranged below the belt and located on the left side and the right side of the belt respectively, and a speed measuring module capable of measuring the rotating speed of the driving roller is installed on the driving roller. The driving roller can be driven by a driving device to rotate forwards or reversely. The two-way material conveying device has the advantages of being capable of conveying materials in two ways at a time, capable of achieving two-way quantitative discharging, high in conveying efficiency, accurate in weighing, capable of saving manpower resources and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to material conveying technical field, concretely is a kind of belt type bidirectional feeding ration feeder. BACKGROUND

[0002] In prior art, material is transported by belt, when transporting material, the weight of material on the belt is measured by weighing sensor arranged below the belt, to achieve the purpose of ration feeding. It is widely used in building materials, electric power, metallurgy, chemical industry. The existing belt type ration feeder is only one-way feeding, if two-way feeding is needed in production process, two belt type ration feeders must be used for feeding, which will lead to larger production site and higher production cost. CONTENT OF UTILITY MODEL

[0003] The utility model solves the technical problem to provide a kind of belt type bidirectional feeding ration feeder that can two-way feeding and can determine the quantity of transported material.

[0004] To solve the above technical problem, the utility model includes rack, and its structural characteristics are: the annular belt is installed on the rack, the two ends of the inner side of the belt are provided with driving drum and driven drum capable of supporting the belt, the driving drum can drive the belt to move, the height of the driving drum and the driven drum is consistent, the inlet is provided on the rack, and the inlet is located above the center of the belt, two weighing modules capable of weighing the weight of material on the belt are provided below the belt, and the two weighing modules are respectively located on the left side and the right side of the inlet, the speed measuring module capable of measuring the rotating speed of the driving drum is installed on the driving drum, and the driving drum can be driven by the driving device to rotate forward or reverse.

[0005] Adopt the above structure, through the feeding port to the positive center of the belt put material, material falls on the belt, driven by the belt to move, the belt is provided with driving drum and driven drum, driving drum rotates when driving the belt rotation, and then drive the material on the belt to both sides, through the driving device driving driving drum forward or reverse, drive the belt positive or negative, when the belt positive, the belt belt material to one side transport, when the belt reverse, the belt belt material to the other side transport, through the positive and negative of driving drum, realize two-way feeding, feeding port in the positive center of the belt, then can be transported to both sides, avoid the feeding port in one end, the material of accidental drop, ensure the stability of material transportation, at the same time, the left and right sides under the belt are respectively provided with weighing device, then when the belt belt material to either side, the weight of the material through the weighing device is weighed by the weighing device, at the same time, the speed measuring device can measure the rolling speed of the driving drum, through the rolling speed and the weight of the weighing, the amount of material moved to the both ends of the belt in a certain time can be known, then the amount of feeding can be accurately controlled, and the required weight is reached, the driving device stops, and then no longer feeds, while being able to two-way feeding, can guarantee the accuracy of feeding, save the human resources, improve the efficiency.

[0006] The weighing module comprises a pressure sensor support mounted on the rack, a weighing carrier roller capable of being attached to the lower surface of the belt is mounted on the pressure sensor support, a pressure sensor is mounted below the weighing carrier roller, the pressure sensor can detect the pressure borne by the weighing carrier roller, when the belt belt material moves to the weighing carrier roller, the gravity of the material extrudes the weighing carrier roller downward, the gravity on the weighing carrier roller is detected by the pressure sensor, and then the weight of the material is detected, the weighing process of the material is completed, the structure is simple and reliable, and the weight of the material can be accurately measured, and subsequent quantitative feeding is completed.

[0007] The upper end of the weighing carrier roller is higher than the upper ends of the driving drum and the driven drum, which avoids lifting the material upward while lifting the belt upward, causing inaccurate measurement of the material, and after the upper end of the weighing carrier roller is higher than the driving drum and the driven drum, the weight of the material passing through the weighing carrier roller is all borne by the weighing carrier roller, ensuring the accuracy of weighing.

[0008] The upper end of the weighing carrier roller is 2-5mm higher than the upper end of the driving drum, which ensures the accuracy of the measurement of the material, avoids excessive friction between the belt and the weighing carrier roller when the weighing carrier roller is too high, avoids damage to the belt, and avoids hindering the transportation of the material when the weighing carrier roller is too high, while ensuring the accuracy of weighing and the efficiency of transportation.

[0009] The two weighing modules are respectively away from two ends by a same distance, facilitating calculation of the weight of the material falling from the two ends in a certain time, and further ensuring quantitative discharging.

[0010] The speed measuring module comprises a coupling disc connected with the shaft of the driving roller and an encoder, the rotation angle of the driving roller is converted into the rotation distance of the outer surface through the coupling disc and the encoder, and then the rotation distance of the belt is known, and then the rotation distance of the material is known, and the quantitative feeding process is completed through cooperation with the weighing module.

[0011] The rack is provided with a tensioning device capable of adjusting the tightness of the belt, the moderate tightness of the belt is ensured through the tensioning device, the slip caused by the over-tightness of the belt is avoided, the increased friction caused by the over-tightness of the belt is avoided, the service life of the belt is reduced, the transportation efficiency is ensured, and the service life is improved.

[0012] In summary, the quantitative feeding machine has the advantages of bidirectional transportation of material, bidirectional quantitative discharging, high transportation efficiency, accurate weighing, and saving of human resources. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model;

[0014] Figure 2 It is Figure 1 a structural schematic view from the top;

[0015] Figure 3 It is a structural schematic view of the weighing module. DETAILED DESCRIPTION

[0016] As Figures 1-3 shown, the utility model is a kind of belt type bidirectional feeding quantitative feeder, it includes support, and the left and right sides of rack 1 are equipped with driving roller 2 and driven roller 3, driving roller 2 and driven roller are equipped with belt 4, and the rotation of belt 4 is driven by the rolling of driving roller 2 and driven roller.The left side below and the right side below of belt 4 are equipped with weighing module 6 and speed measuring module, and the center of belt 4 is equipped with inlet 5 above.The material from inlet 5 falls on belt 4.The both ends of belt 4 are equipped with discharge port.The material on belt 4 can move to the both ends of belt 4 respectively with the movement of belt 4, and the material on belt 4 falls from both ends.Drive motor is connected with driving roller 2, and the movement direction of belt 4 is adjusted by the positive transmission or reverse rotation of drive motor, and then the material on belt 4 falls from both ends.

[0017] As Figures 1-3As shown, the lower end of the belt 4 is provided with a weighing module 6, which is located below the left side and below the right side of the belt 4. The position of the belt 4 passing through the weighing module 6 is weighed by the weighing module 6. After weighing by the weighing module 6, the amount of feeding is determined, and then conveyed to the left or right to the discharge port. The weighing module 6 includes a weighing roller 61, a pressure sensor and a pressure sensor support. The pressure sensor support is L-shaped, and the pressure sensor is located on the pressure sensor support. The weighing roller 61 is located above the pressure sensor. When the weighing roller 61 is pressed downward by the material on the belt 4, the downward pressure is detected by the pressure sensor, and the weight of the material on the belt 4 is detected. The height of the weighing roller 61 is higher than the height of the driving roller 2 and the driven roller 3. Then the weighing roller 61 slightly lifts the belt 4. When the belt 4 carries the material through the weighing roller 61, the weighing roller 61 rotates, and the weight of the material is transmitted to the weighing roller 61. The pressure sensor is provided below the weighing roller 61. The pressure sensor senses the weight of the material, and the weight of the material on the belt 4 can be determined. In this embodiment, the height of the weighing roller 61 is 2-5mm higher than the upper surface of the driving roller 2 and the driven roller 3. When the material is above the weighing roller 61, the material above the weighing roller 61 is measured. When the weighing roller 61 is too high, the weighing roller 61 lifts the belt 4, and the material that does not pass through the weighing roller 61 also presses the weighing roller 61, causing inaccurate measurement. The height of the weighing roller 61 is slightly higher than the driving roller, which can lift the belt 4 and avoid the unloading force of the driving roller 2 and the driven roller 3 on both sides, ensuring the accuracy of the weighing. Compared with the weighing block, the weighing roller 61 can rotate. The friction between the weighing roller 61 and the belt 4 is rotational friction, which avoids the wear of the belt 4 caused by the friction of the weighing module 6 on the belt 4, and increases the service life. The lower end of the left and right sides of the belt 4 is provided with a weighing module 6, and the distance between the two weighing modules 6 and the driving roller 2 and the driven roller 3 is consistent. The two weighing modules 6 can detect the material transported to the left and the material transported to the right, respectively.

[0018] As Figures 1-3As shown, two sides of the weighing module 6 are also provided with a speed measuring module. The speed measuring module includes an encoder and a coupling disc, the encoder is connected with the main shaft of the driven roller 3 through the coupling disc, then through the rotation angle of the main shaft, the rotation speed of the belt 4 can be detected through the encoder. Further, through the rotation speed, the mass of the material entering the discharge port can be judged. Since the position of the weighing roller 61 is certain, by measuring the rotation speed, the time of the weighed material entering the discharge port can be known. Through the cooperation of the speed measuring module and the weighing module 6, the weight of the material entering the discharge port within a certain time can be known, and then fed back to the control system. When the control system receives the weighing signal and the rotation speed signal, the weight entering the discharge port is known through calculation, and when the weight reaches the required amount, the rotation of the driving roller 2 is controlled to stop or reverse rotation, preventing continuous feeding. The purpose of quantitative feeding is achieved.

[0019] As shown in the figure, Figures 1-3 As shown, the frame 1 is provided with a tensioning device 8, which is located between the annular belt 4 and above the lower belt 4, and abuts the upper surface of the lower belt 4. The tensioning device 8 includes a tensioning wheel that can adjust the up-down position, and the lower end of the tensioning wheel abuts the upper end surface of the lower belt 4. When the tensioning wheel moves downward, the lower end of the belt 4 is subjected to downward force, and the belt 4 is tightened, and the belt 4 of the upper side of the material conveying part is also tightened. When the tensioning wheel moves upward, the downward force on the lower end of the belt 4 decreases, and the belt 4 becomes loose. Through the tensioning device 8, the tightness of the belt 4 can be adjusted, and the stability of the belt 4 conveying process can be ensured.

Claims

1. A belt type bidirectional feeding doser comprising a frame (1), characterized in that: The rack (1) is provided with an annular belt (4), both ends of the inner side of the belt (4) are provided with a driving roller (2) and a driven roller (3) capable of supporting the belt (4), the driving roller (2) can drive the belt (4) to move, the height of the driving roller (2) and the driven roller (3) is consistent, the rack (1) is provided with a feeding port (5), the feeding port (5) is located above the center of the belt (4), the lower side of the belt (4) is provided with two weighing modules (6) capable of weighing the weight of the material on the belt (4), the two weighing modules (6) are respectively located on the left side and the right side of the feeding port (5), the driving roller (2) is provided with a speed measuring module capable of measuring the rotating speed of the driving roller (2), and the driving roller (2) can be driven by a driving device to rotate forward or reverse.

2. A belt-driven bidirectional feeding doser as claimed in claim 1, characterized in that: The weighing module (6) comprises a pressure sensor support mounted on the rack (1), the pressure sensor support is provided with a weighing roller (61) capable of being attached to the lower surface of the belt (4), the weighing roller (61) is provided with a pressure sensor below, and the pressure sensor can detect the pressure borne by the weighing roller (61).

3. A belt-driven bidirectional feeding doser according to claim 2, characterized in that: The height of the upper end of the weighing roller (61) is higher than the upper end of the driving roller (2) and the driven roller (3).

4. The belt-driven bidirectional feeding doser according to claim 3, characterized in that: The upper end of the weighing roller (61) is 2-5mm higher than the upper end of the driving roller (2).

5. The belt-driven bidirectional feeding doser of claim 1, wherein: The distance between the left and right two weighing modules (6) and the two ends is consistent.

6. The belt-driven bidirectional feeding doser of claim 1, wherein: The speed measuring module comprises a coupling disc connected with the shaft of the driving roller (2) and an encoder.

7. The belt-driven bidirectional feeding doser of claim 1, wherein: The rack (1) is provided with a tensioning device (8) capable of adjusting the tightness of the belt (4).

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