Automatic weighing and conveying mechanism

Abstract

The utility model discloses an automatic weighing and conveying mechanism which comprises a rack, a storage hopper, a receiving conveying belt, a weighing mechanism, a discharging slide way, a controller and an overturning mechanism capable of driving the weighing mechanism to overturn towards the feeding end of the discharging slide way. A discharging port of the storage hopper is located above the feeding end of the material receiving conveying belt, the discharging end of the material receiving conveying belt is located above the feeding end of the weighing mechanism, and the discharging end of the weighing mechanism is located above the feeding end of the discharging sliding way. A weighing sensor is arranged on the weighing mechanism; the turnover mechanism is arranged on the rack, the weighing mechanism is installed on the turnover mechanism, and the discharging end of the weighing mechanism faces the feeding end of the discharging slide way; the receiving conveying belt comprises a servo motor, a driving shaft, a driven shaft and an annular belt, and a power output shaft of the servo motor is in transmission connection with the driving shaft; the signal output end of the weighing sensor is electrically connected with the corresponding signal input end of the controller, and the corresponding signal output end of the controller is electrically connected with the turnover mechanism and the servo motor.

Description

TECHNICAL FIELD

[0001] The utility model relates to material conveying equipment technical field, especially in an automatic weighing material conveying mechanism. BACKGROUND

[0002] In modern industrial production, the weighing and material conveying steps in the packaging process are one of the key steps. The traditional packaging weighing and material conveying method relies on manual operation, which has problems such as low efficiency, poor weighing accuracy, and high labor intensity. In addition, the existing automatic packaging equipment often cannot achieve precise control during the weighing and material conveying process, resulting in material waste or unstable packaging quality. Therefore, an automatic weighing and precise material conveying packaging equipment is urgently needed to improve production efficiency and product quality. SUMMARY

[0003] The problem to be solved by the utility model is to provide an automatic weighing and material conveying mechanism, which can realize automatic weighing, precise material conveying and overturning and dumping of materials, improve weighing accuracy, and reduce manual operation intensity.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] An automatic weighing and material conveying mechanism, characterized in that it comprises a rack, a storage hopper, a material receiving conveyor belt, a weighing mechanism, a material dumping chute, a controller, and a turnover mechanism capable of driving the weighing mechanism to overturn towards the material dumping chute; the storage hopper, the material receiving conveyor belt, the weighing mechanism, and the material dumping chute are sequentially arranged on the rack, the discharge port of the storage hopper is above the material receiving end of the material receiving conveyor belt, the discharge end of the material receiving conveyor belt is above the material receiving end of the weighing mechanism, and the discharge end of the weighing mechanism is above the material receiving end of the material dumping chute; a weighing sensor is arranged on the weighing mechanism; the turnover mechanism is arranged on the rack, and the weighing mechanism is installed on the turnover mechanism; the material receiving conveyor belt comprises a servo motor, a driving shaft, a driven shaft, and an endless belt, the driving shaft and the driven shaft are both rotatably installed on the rack, the servo motor is installed on the rack, the driving shaft and the driven shaft jointly tension the endless belt, the endless belt has a forward section and a return section below the forward section, and the power output shaft of the servo motor is in transmission connection with the driving shaft; the signal output end of the weighing sensor is electrically connected with the corresponding signal input end of the controller, and the turnover mechanism and the servo motor are respectively electrically connected with the corresponding signal output end of the controller.

[0006] Before the material weighing, the target weight of the material is set for the weighing sensor.

[0007] When the material to be weighed is poured into the storage hopper, the material in the storage hopper falls onto the receiving conveying belt, and the receiving conveying belt is driven by the servo motor to gradually transport the material to the weighing mechanism, and the weighing sensor detects the weight of the material in real time; as the weight of the material on the weighing mechanism increases, the weighing sensor sends the weight signal of the material to the controller, and the controller processes the signal and sends a signal to adjust the rotating speed of the power output shaft of the servo motor; when the weight of the material on the weighing mechanism approaches the target weight, the controller sends an instruction to the servo motor to reduce the rotating speed of the power output shaft of the servo motor, so as to reduce the speed of the receiving conveying belt and slowly convey the material; when the weight of the material on the weighing mechanism reaches the target weight, the receiving conveying belt stops conveying immediately; then, the controller sends an instruction to the turnover mechanism, and the turnover mechanism drives the weighing mechanism to turn over towards the feeding end of the discharging chute after receiving the signal, so that the weighed material on the weighing mechanism falls into the discharging chute, and the weighed material is conveyed to the collection station through the discharging chute and collected.

[0008] In the preferred solution, the turnover mechanism comprises a turnover seat and a turnover driving mechanism capable of driving the turnover seat to turn over, the turnover driving mechanism is installed on the rack, one side of the turnover seat is rotatably installed on the rack, and the weighing mechanism is installed on the turnover seat. The turnover driving mechanism drives the turnover seat to turn over, and in turn drives the weighing mechanism to pour material towards the feeding end of the discharging chute.

[0009] In the further preferred solution, the turnover driving mechanism comprises a turnover cylinder and a first electromagnetic reversing valve for controlling the air inlet and outlet directions of the turnover cylinder, the cylinder body of the turnover cylinder is hingedly installed on the rack, the piston rod of the turnover cylinder is hingedly connected with the bottom of the turnover seat, and the first electromagnetic reversing valve is electrically connected with the corresponding signal output end of the controller.

[0010] In the further preferred solution, the weighing mechanism further comprises a weighing hopper, the weighing hopper is installed on the turnover seat, the weighing sensor is installed at the bottom of the weighing hopper, and the discharging end of the weighing hopper faces the feeding end of the discharging chute.

[0011] Further preferably, the turnover seat is provided with a weighing hopper translation mechanism capable of driving the weighing hopper to reciprocate and translate between the discharge end of the material receiving conveyor and the feeding end of the material discharging chute, and the weighing hopper translation mechanism is electrically connected to the corresponding signal output end of the controller. In a specific scheme, the weighing hopper translation mechanism comprises a sliding rail, a sliding block, a translation cylinder, and a second electromagnetic reversing valve for controlling the air inlet and outlet directions of the translation cylinder, the sliding rail is installed on the turnover seat, the sliding block is installed on the sliding rail and can slide on the sliding rail, and the weighing hopper is installed on the sliding block; the cylinder body of the translation cylinder is installed on the turnover seat, the piston rod of the translation cylinder is parallel to the sliding rail, and the end of the piston rod of the translation cylinder is connected to the sliding block; and the second electromagnetic reversing valve is electrically connected to the corresponding signal output end of the controller. When the weighing hopper needs to be emptied, the weighing hopper is translated to correspond to the feeding end of the material discharging chute through the weighing hopper translation mechanism, so as to prevent the weighing hopper from colliding with the discharge end of the material receiving conveyor when the weighing hopper is turned over.

[0012] Preferably, the automatic weighing and feeding mechanism further comprises a material receiving table provided with a material receiving box, and the discharge end of the material discharging chute is above the opening of the material receiving box. Through this arrangement, the material in the material discharging chute can be conveniently collected.

[0013] Compared with the prior art, the present application has the following advantages:

[0014] The present application adjusts the conveying speed of the material receiving conveyor and the material emptying of the turnover mechanism through the controller, adopts different conveying speeds in different weighing stages, slows down when the material approaches the preset weight, ensures accurate measurement of the weighing, avoids excessive material conveying due to excessive speed, thereby improving the accuracy of the weighing, reducing material waste, making the material emptying process more convenient, and reducing the labor operation intensity. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a structural schematic view of a specific embodiment of the present application;

[0016] Fig. 2 is a structural schematic view of a turnover mechanism in a specific embodiment of the present application;

[0017] Fig. 3 is a structural schematic view of a material receiving conveyor in a specific embodiment of the present application. DETAILED DESCRIPTION

[0018] The present application will be specifically described below in combination with the drawings and specific embodiments.

[0019] As Figs. 1-3As shown, the automatic weighing and feeding mechanism in the embodiment comprises a rack 1, a storage hopper 2, a receiving and conveying belt 3, a weighing mechanism 4, a feeding chute 5, a controller (not shown in the figure) and a turnover mechanism 6 capable of driving the weighing mechanism 4 to overturn towards the feeding end of the feeding chute 5; the storage hopper 2, the receiving and conveying belt 3, the weighing mechanism 4 and the feeding chute 5 are sequentially arranged on the rack 1, the discharge opening of the storage hopper 2 is above the feeding end of the receiving and conveying belt 3, the discharge end of the receiving and conveying belt 3 is above the feeding end of the weighing mechanism 4, and the discharge end of the weighing mechanism 4 is above the feeding end of the feeding chute 5; the weighing mechanism 4 is provided with a weighing sensor 41; the turnover mechanism 6 is arranged on the rack 1, and the weighing mechanism 4 is installed on the turnover mechanism 6; the receiving and conveying belt 3 comprises a servo motor (not shown in the figure), a driving shaft 31, a driven shaft 32 and an endless belt 33, the driving shaft 31 and the driven shaft 32 are both rotatably installed on the rack 1, the servo motor is installed on the rack 1, the driving shaft 31 and the driven shaft 32 jointly tension the endless belt 33, the endless belt 33 has a forward section 331 and a return section 332 below the forward section 331, and the power output shaft of the servo motor is in transmission connection with the driving shaft 31; the signal output end of the weighing sensor 41 is in electrical connection with the corresponding signal input end of the controller, and the turnover mechanism 6 and the servo motor are respectively in electrical connection with the corresponding signal output end of the controller.

[0020] Before feeding and weighing, the target weight of the material is set for the weighing sensor 41.

[0021] When feeding and weighing, the material to be weighed is first poured into the storage hopper 2, the material in the storage hopper 2 falls onto the receiving and conveying belt 3, the receiving and conveying belt 3 is driven by the servo motor to convey the material, and the material is gradually transported to the weighing mechanism 4, and the weighing sensor 41 detects the weight of the material in real time; as the weight of the material on the weighing mechanism 4 increases, the weighing sensor 41 sends the weight signal of the material to the controller, the controller processes the signal and sends a signal to adjust the rotating speed of the power output shaft of the servo motor; when the weight of the material on the weighing mechanism 4 approaches the target weight, the controller sends an instruction to the servo motor to reduce the rotating speed of the power output shaft of the servo motor, so as to reduce the speed of the receiving and conveying belt 3 and make the material be conveyed slowly; when the weight of the material on the weighing mechanism 4 reaches the target weight, the receiving and conveying belt 3 is immediately stopped; then, the controller sends an instruction to the turnover mechanism 6, the turnover mechanism 6 drives the weighing mechanism 4 to overturn towards the feeding end of the feeding chute 5 after receiving the signal, so as to pour the weighed material on the weighing mechanism 4 into the feeding chute 5, and the weighed material is conveyed to the collecting station through the feeding chute 5 and collected.

[0022] The turnover mechanism 6 comprises a turnover base 61 and a turnover driving mechanism 62 capable of driving the turnover base 61 to turn, the turnover driving mechanism 62 is installed on the frame 1, one side of the turnover base 61 is rotatably installed on the frame 1, and the weighing mechanism 4 is installed on the turnover base 61. The turnover base 61 is driven to turn by the turnover driving mechanism 62, thereby driving the weighing mechanism 4 to pour material towards the feeding end of the discharging chute 5.

[0023] The turnover driving mechanism 62 comprises a turnover cylinder and a first electromagnetic reversing valve for controlling the air inlet and outlet directions of the turnover cylinder, the cylinder body of the turnover cylinder is hingedly installed on the frame 1, the piston rod of the turnover cylinder is hingedly connected with the bottom of the turnover base 61, and the first electromagnetic reversing valve is electrically connected with the corresponding signal output end of the controller.

[0024] The weighing mechanism 4 further comprises a weighing hopper 42, the weighing hopper 42 is installed on the turnover base 61, the weighing sensor 41 is installed on the bottom of the weighing hopper 42, and the discharging end of the weighing hopper 42 is towards the feeding end of the discharging chute 5.

[0025] The turnover base 61 is provided with a weighing hopper translation mechanism 63 capable of driving the weighing hopper 42 to reciprocally translate between the discharging end of the receiving conveying belt 3 and the feeding end of the discharging chute 5, and the weighing hopper translation mechanism 63 is electrically connected with the corresponding signal output end of the controller. In a specific scheme, the weighing hopper translation mechanism 63 comprises a sliding rail 631, a sliding block 632, a translation cylinder 633 and a second electromagnetic reversing valve for controlling the air inlet and outlet directions of the translation cylinder 633, the sliding rail 631 is installed on the turnover base 61, the sliding block 632 is installed on the sliding rail 631 and can slide on the sliding rail 631, and the weighing hopper 42 is installed on the sliding block 632; the cylinder body of the translation cylinder 633 is installed on the turnover base 61, the piston rod of the translation cylinder 633 is parallel to the sliding rail 631, and the end of the piston rod of the translation cylinder 633 is connected with the sliding block 632; and the second electromagnetic reversing valve is electrically connected with the corresponding signal output end of the controller. When the weighing hopper 42 needs to pour material, the weighing hopper 42 is translated to correspond to the feeding end of the discharging chute 5 by the weighing hopper translation mechanism 63, so as to prevent the weighing hopper 42 from colliding with the discharging end of the receiving conveying belt 3 when the weighing hopper 42 turns.

[0026] The automatic weighing and feeding mechanism further comprises a receiving table 7 provided with a receiving box 8, and the discharging end of the discharging chute 5 is above the opening of the receiving box 8. Through this arrangement, the material in the discharging chute 5 can be conveniently collected.

[0027] In addition, it should be noted that the specific embodiments described in the specification, the name of each part, etc. can be different, and any equivalent or simple change made in accordance with the structure, features and principles described in the utility model patent concept is included in the protection scope of the utility model patent. The skilled in the art to which the present application belongs can make various modifications or supplements or adopt similar ways to replace the described specific embodiments, as long as it does not deviate from the structure of the utility model or beyond the scope defined in the claims, which shall belong to the protection scope of the utility model.

Claims

1. An automatic weighing and feeding mechanism, characterized in that: The system includes a frame, a storage hopper, a receiving conveyor belt, a weighing mechanism, a discharge chute, a controller, and a tilting mechanism capable of driving the weighing mechanism to tilt towards the feed end of the discharge chute. The storage hopper, receiving conveyor belt, weighing mechanism, and discharge chute are sequentially arranged on the frame. The discharge port of the storage hopper is above the feed end of the receiving conveyor belt, the discharge end of the receiving conveyor belt is above the feed end of the weighing mechanism, and the discharge end of the weighing mechanism is above the feed end of the discharge chute. A weighing sensor is installed on the weighing mechanism. The tilting mechanism is mounted on the frame. The weighing mechanism is mounted on the tilting mechanism; the receiving conveyor belt includes a servo motor, a drive shaft, a driven shaft, and an annular belt. Both the drive shaft and the driven shaft are rotatably mounted on the frame. The servo motor is mounted on the frame. The drive shaft and the driven shaft together tension the annular belt. The annular belt has a forward section and a return section below the forward section. The power output shaft of the servo motor is connected to the drive shaft. The signal output terminal of the weighing sensor is electrically connected to the corresponding signal input terminal of the controller. The tilting mechanism and the servo motor are respectively electrically connected to the corresponding signal output terminals of the controller.

2. The automatic weighing and feeding mechanism according to claim 1, wherein: The flipping mechanism includes a flipping seat and a flipping drive mechanism capable of driving the flipping seat to flip. The flipping drive mechanism is mounted on the frame. One side of the flipping seat is rotatably mounted on the frame. The weighing mechanism is mounted on the flipping seat.

3. The automatic weighing and feeding mechanism according to claim 2, wherein: The flipping drive mechanism includes a flipping cylinder and a first electromagnetic reversing valve for controlling the air inlet and outlet direction of the flipping cylinder. The cylinder body of the flipping cylinder is hinged to the frame, and the piston rod of the flipping cylinder is hinged to the bottom of the flipping seat. The first electromagnetic reversing valve is electrically connected to the corresponding signal output terminal of the controller.

4. The automatic weighing and feeding mechanism according to claim 2, wherein: The weighing mechanism also includes a weighing hopper, which is mounted on the tilting seat. The weighing sensor is mounted on the bottom of the weighing hopper, and the discharge end of the weighing hopper faces the feed end of the discharge chute.

5. The automatic weighing and feeding mechanism according to claim 4, wherein: The tilting seat is equipped with a weighing hopper translation mechanism that can drive the weighing hopper to reciprocate between the discharge end of the receiving conveyor belt and the inlet end of the discharge slide. The weighing hopper translation mechanism is electrically connected to the corresponding signal output terminal of the controller.

6. The automatic weighing and feeding mechanism according to claim 5, wherein: The weighing hopper translation mechanism includes a slide rail, a slider, a translation cylinder, and a second electromagnetic reversing valve for controlling the air inlet and outlet direction of the translation cylinder. The slide rail is mounted on the tilting seat, the slider is mounted on the slide rail and can slide on the slide rail, and the weighing hopper is mounted on the slider. The cylinder body of the translation cylinder is mounted on the tilting seat, the piston rod of the translation cylinder is parallel to the slide rail, and the end of the piston rod of the translation cylinder is connected to the slider. The second electromagnetic reversing valve is electrically connected to the corresponding signal output terminal of the controller.

7. The automatic weighing and feeding mechanism according to claim 1, wherein: It also includes a receiving platform with a receiving box, and the discharge end of the discharge chute is located above the opening of the receiving box.

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