Bidirectional weighing conveyor

Abstract

The utility model provides a two-way weighing conveyor, which belongs to the technical field of two-way conveying equipment and comprises a rack, at least four supporting legs are arranged on the rack, at least one supporting leg is arranged at each of four corners of the rack, and weighing modules are mounted at the bottoms of the supporting legs. The weighing module is set to output a signal when the detected weight reaches a set threshold value; the conveying belt is movably mounted on the rack, and the conveying belt is arranged to be of a two-way movement structure; the driving mechanism is installed on the machine frame, the driving mechanism is in linkage connection with the conveying belt, the advancing direction of the conveying belt is controlled by the driving mechanism, and the operation state and the operation direction of the driving mechanism are determined by signals output by all the weighing modules. The conveying belt weighing device has the advantages that the weighing modules are arranged at the bottoms of the supporting legs of the machine frame, so that the machine frame has the weighing function, materials on the conveying belt can be weighed in real time, and the moving direction of the conveying belt can be controlled more flexibly and accurately.

Description

Technical Field

[0001] This utility model belongs to the technical field of bidirectional conveying equipment and relates to a bidirectional weighing conveyor. Background Technology

[0002] A bidirectional weighing conveyor is an industrial device that combines the functions of a conveyor and a weighing system, allowing materials to be weighed while being transported in two directions (forward and reverse).

[0003] For example, a utility model patent with application number CN202323014217.1, entitled "A Bidirectional Conveyor," has a conveying mechanism and an electrical control box fixedly installed on the upper end of the conveyor frame. The electrical control box is located on the side of the conveying mechanism, and a weighing mechanism is fixedly installed on the lower ends of both sides of the frame. The conveying mechanism includes a conveying frame, a sliding bearing seat, a passive shaft, a drive shaft, a motor, and a belt. The conveying frame is fixedly connected to the upper end of the frame. The passive shaft and the drive shaft are respectively installed at both ends of the conveying frame through the sliding bearing seat. The central shaft of the drive shaft is fixedly connected to the output shaft of the motor, and the belt is sleeved on the outside of the passive shaft and the drive shaft.

[0004] The bidirectional conveyor has a relatively complex structure, with the weighing mechanism and conveying mechanism being independently configured. Specifically, two material cylinders are installed at each end of the conveying mechanism, and material can be fed into one of the cylinders. A weighing module is located below each cylinder to weigh the material that has entered it. However, this design has certain limitations because it cannot perform real-time weighing of the material during the conveying process; it can only perform static weighing of the material that has arrived and is stationary in the cylinder. This means that the direction of operation of the conveying mechanism is not determined by the weight on the conveyor, leaving room for improvement. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a bidirectional weighing conveyor.

[0006] The objective of this utility model can be achieved through the following technical solution: a bidirectional weighing conveyor, comprising:

[0007] A frame is provided with at least four support legs, and at least one support leg is provided at each of the four corners of the frame. A weighing module is installed at the bottom of the support legs. The weighing module is configured to output a signal when the detected weight reaches a set threshold.

[0008] A conveyor belt, which is movably mounted on the frame, and the conveyor belt is configured as a bidirectional motion structure;

[0009] A drive mechanism is mounted on the frame and is linked to the conveyor belt. The direction of travel of the conveyor belt is controlled by the drive mechanism, and the operating state and direction of the drive mechanism are determined by the signals output by each of the weighing modules.

[0010] Preferably, the conveyor belt includes a carrying section and a return section, the carrying section and the return section are arranged vertically corresponding to each other, and the drive mechanism is configured to control the carrying section to move towards one end of the frame or towards the other end of the frame by forward and reverse rotation.

[0011] Preferably, rotatable synchronous rollers are provided at both ends of the frame, and the conveyor belt is sleeved on the two synchronous rollers to form a closed annular structure.

[0012] Preferably, the driving mechanism includes a motor and a drive roller. The motor is fixedly mounted on the frame, and the drive roller is rotatably mounted on the frame. The drive roller is linked to the output shaft of the motor, and the return section of the conveyor belt is linked to the drive roller. When the drive roller rotates, it can drive the conveyor belt to run through the return section.

[0013] Preferably, a first sprocket is provided on the output shaft of the motor, and a second sprocket is provided on the drive roller, with the first sprocket and the second sprocket connected by a transmission chain.

[0014] Preferably, the system also includes a controller, wherein both the weighing module and the motor are electrically connected to the controller, and the controller is configured to control the motor to rotate forward or in reverse according to the signal output by the weighing module.

[0015] Preferably, the weighing module is configured as a weighing sensor.

[0016] Preferably, the device further includes two receiving mechanisms, each located near one end of the frame. Each receiving mechanism includes a mounting base, a linear drive element, and a receiving container. The mounting base is located near the end of the frame, the linear drive element is fixedly mounted on the mounting base, and the receiving container is connected to the linear drive element. The linear drive element can move the receiving container closer to or further away from the end of the frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. A weighing module is installed at the bottom of the support feet of the frame, so that the frame has a weighing function, which can weigh the material on the conveyor belt in real time, thereby controlling the movement direction of the conveyor belt more flexibly and accurately.

[0019] 2. The motor drives the conveyor belt via the drive roller. The drive roller surface typically has a certain coefficient of friction to ensure good contact with the conveyor belt, thereby effectively transmitting power. The return section of the conveyor belt is directly connected to the drive roller. When the drive roller rotates, it drives the entire conveyor belt through the return section.

[0020] 3. When the conveyor belt transports the material to one end of the frame, the linear drive element of the receiving mechanism at that end works, driving the receiving container close to the end of the frame. After receiving is completed, the linear drive element moves again to bring the receiving container back to its original position, and then the receiving container processes the material. Attached Figure Description

[0021] Figure 1 This is an isometric view of the bidirectional weighing conveyor of this utility model.

[0022] Figure 2 This is a front view of the bidirectional weighing conveyor of this utility model.

[0023] Figure 3 This is a schematic diagram of the drive mechanism of this utility model.

[0024] In the diagram, 100 is the frame; 110 is the support leg; 120 is the weighing module; 130 is the synchronous roller; 200 is the conveyor belt; 210 is the carrying section; 220 is the return section; 300 is the motor; 310 is the first sprocket; 400 is the drive roller; 410 is the second sprocket; 500 is the receiving mechanism; 510 is the fixed base; 520 is the linear drive element; and 530 is the receiving container. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] like Figures 1 to 3 As shown, a bidirectional weighing conveyor includes: a frame 100, which is provided with at least four support legs 110, and at least one support leg 110 is provided at each of the four corners of the frame 100. A weighing module 120 is installed at the bottom of the support leg 110, and the weighing module 120 is configured to output a signal when the detected weight reaches a set threshold; a conveyor belt 200, which is movably mounted on the frame 100 and is configured as a bidirectional motion structure; and a drive mechanism, which is mounted on the frame 100 and is linked to the conveyor belt 200. The direction of travel of the conveyor belt 200 is controlled by the drive mechanism, and the operating state and direction of the drive mechanism are determined by the signals output by each weighing module 120.

[0027] The frame 100 serves as the framework of the entire system, providing the foundation for mounting the conveyor belt 200. At least one support leg 110 is located at each of the four corners of the frame 100, increasing the overall structural stability. A weighing module 120 is installed at the bottom of each support leg 110, enabling the frame 100 to perform weighing functions. These weighing modules 120 allow for the accurate measurement of the weight of items placed on the conveyor.

[0028] In this design, the conveyor belt 200 is configured as a bidirectional motion structure, allowing items to move in both directions. That is, the conveyor belt 200 can carry materials to one end of the frame 100 or to the other end. The drive mechanism controls the direction of travel of the conveyor belt 200. The drive mechanism can adjust its operating state and direction based on information provided by each weighing module 120 to ensure that the material is carried by the conveyor belt 200 in the designated direction. It should be noted that the operating state of the drive mechanism refers to whether it is running or stopped, and the operating direction refers to whether it rotates forward or backward.

[0029] The bidirectional weighing conveyor operates as a highly coordinated process, using alternating conveying to transport materials to processing devices located at both ends of the frame 100. Specifically, the process is as follows: materials are first placed on the conveyor belt 200. When the weighing module 120 detects that the weight of the material on the conveyor belt 200 reaches a set threshold, the weighing module 120 sends a signal, and the drive mechanism controls the conveyor belt 200 to move in one direction, transporting the material to processing device A at one end of the frame 100. Processing device A processes the material, and then the material is fed back onto the conveyor belt 200. When the weight of the material on the conveyor belt 200 again reaches the set threshold, the drive mechanism controls the conveyor belt 200 to move in the other direction, transporting the material to processing device B at the other end of the frame 100. Processing device B processes the material, and when the weight of the next batch of material reaches the set threshold, the conveyor belt 200 carries the material to processing device A. At this point, processing device A has already processed the previous batch of material and is ready to receive the next batch.

[0030] A weighing module 120 is installed at the bottom of the support foot 110 of the frame 100, which gives the entire conveying system a real-time weighing function. Since the weighing module 120 is directly installed on the support foot 110, the frame 100 can weigh the weight of the material on the conveyor belt 200. This weight measurement is performed in real time and can provide almost instantaneous weight information feedback to the control system, so that the drive mechanism can respond quickly and adjust the movement direction of the conveyor belt 200 in a timely manner.

[0031] Based on the above implementation, the conveyor belt 200 includes a carrying section 210 and a return section 220. The carrying section 210 and the return section 220 are arranged vertically in correspondence. The drive mechanism is configured to control the carrying section 210 to move towards one end of the frame 100 or towards the other end of the frame 100 by forward and reverse rotation.

[0032] The conveyor belt 200 has a ring-shaped belt structure. The carrying section 210 is the upper part of the conveyor belt 200, which directly carries and transports materials; the return section 220 is the lower part of the conveyor belt 200. When the drive mechanism rotates in one direction (e.g., clockwise), it moves the carrying section 210 toward one end of the frame 100. Conversely, when the drive mechanism rotates in the opposite direction (counterclockwise), it moves the carrying section 210 toward the other end of the frame 100.

[0033] Based on the above implementation method, rotatable synchronous rollers 130 are provided at both ends of the frame 100, and the conveyor belt 200 is sleeved on the two synchronous rollers 130 to form a closed ring structure.

[0034] Two synchronous rollers 130 are located at both ends of the frame 100. They are not only responsible for driving the movement of the conveyor belt 200, but also play a supporting role, ensuring that the conveyor belt 200 remains stable throughout the operation. Due to the precise installation and adjustment of the synchronous rollers 130, the carrying section 210 of the conveyor belt 200 can be maintained on a horizontal plane, forming a stable material transport platform.

[0035] like Figure 1 , Figure 3 As shown, based on the above embodiment, the drive mechanism includes a motor 300 and a drive roller 400. The motor 300 is fixedly installed on the frame 100, and the drive roller 400 is rotatably installed on the frame 100. The drive roller 400 is linked to the output shaft of the motor 300. The return section 220 of the conveyor belt 200 is linked to the drive roller 400. When the drive roller 400 rotates, it can drive the conveyor belt 200 to run through the return section 220.

[0036] Motor 300 drives conveyor belt 200 via drive roller 400. The surface of drive roller 400 typically has a certain coefficient of friction to ensure good contact with conveyor belt 200, thereby effectively transmitting power. Return section 220 of conveyor belt 200 is directly connected to drive roller 400. When drive roller 400 rotates, it drives the entire conveyor belt 200 through return section 220.

[0037] Based on the above implementation, a first sprocket 310 is provided on the output shaft of the motor 300, and a second sprocket 410 is provided on the drive roller 400. The first sprocket 310 and the second sprocket 410 are connected by a transmission chain.

[0038] Chain drive systems are highly efficient, effectively transmitting power from motor 300 to drive roller 400, reducing energy loss in intermediate stages. Chain drive systems are generally more durable than belt drives, especially when high torque and low speed are required. The tight fit between the chain and sprocket ensures long-term stable performance.

[0039] Based on the above implementation, a controller is also included. The weighing module 120 and the motor 300 are all electrically connected to the controller. The controller is configured to control the motor 300 to rotate forward or backward according to the signal output by the weighing module 120.

[0040] The controller can automatically make optimal decisions based on real-time weight data without human intervention, improving the system's automation level. Combined with modern control algorithms (such as PID control), it can achieve more precise speed and direction control, adapting to complex logistics needs.

[0041] Based on the above implementation, the weighing module 120 is configured as a weighing sensor. The weighing module 120 can be a strain gauge load cell, a piezoelectric load cell, or other sensors capable of detecting or weighing weight.

[0042] like Figure 1 As shown, based on the above embodiment, it also includes two receiving mechanisms 500. The two receiving mechanisms 500 are respectively located near the two ends of the frame 100. Each receiving mechanism 500 includes a fixed base 510, a linear drive element 520, and a receiving container 530. The fixed base 510 is located near the end of the frame 100. The linear drive element 520 is fixedly installed on the fixed base 510. The receiving container 530 is connected to the linear drive element 520. The linear drive element 520 can drive the receiving container 530 to move closer to or further away from the end of the frame 100.

[0043] The mounting bases 510 are installed at both ends of the frame 100, near the ends of the frame 100, providing a stable support platform for the linear drive element 520 and the receiving container 530. The linear drive element 520 can be a cylinder, electric actuator, hydraulic cylinder, or linear motor 300, etc. Through precise control, the linear drive element 520 can drive the receiving container 530 to move linearly, achieving movement towards or away from the ends of the frame 100. The receiving container 530 is used to receive and process materials unloaded from the conveyor belt 200.

[0044] When the conveyor belt 200 transports the material to one end of the frame 100, the linear drive element 520 of the receiving mechanism 500 located at that end works, driving the receiving container 530 to approach the end of the frame 100. After receiving is completed, the linear drive element 520 acts again to bring the receiving container 530 back to its original position, and then the receiving container 530 processes the material.

[0045] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0046] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A bidirectional weighing conveyor, characterized in that, include: A frame (100) is provided with at least four support legs (110), and at least one support leg (110) is provided at each of the four corners of the frame (100). A weighing module (120) is installed at the bottom of the support leg (110), and the weighing module (120) is configured to output a signal when the detected weight reaches a set threshold. A conveyor belt (200) is movably mounted on the frame (100), and the conveyor belt (200) is configured as a bidirectional motion structure; The drive mechanism is mounted on the frame (100) and is linked to the conveyor belt (200). The direction of travel of the conveyor belt (200) is controlled by the drive mechanism. The operating state and direction of the drive mechanism are determined by the signals output by each of the weighing modules (120).

2. The bidirectional weighing conveyor as described in claim 1, characterized in that: The conveyor belt (200) includes a carrying section (210) and a return section (220). The carrying section (210) and the return section (220) are arranged vertically in correspondence. The drive mechanism is configured to control the carrying section (210) to move toward one end of the frame (100) or toward the other end of the frame (100) by forward and reverse rotation.

3. The bidirectional weighing conveyor as described in claim 2, characterized in that: The frame (100) is provided with rotatable synchronous rollers (130) at both ends, and the conveyor belt (200) is sleeved on the two synchronous rollers (130) to form a closed ring structure.

4. A bidirectional weighing conveyor as described in claim 2, characterized in that: The driving mechanism includes a motor (300) and a drive roller (400). The motor (300) is fixedly mounted on the frame (100), and the drive roller (400) is rotatably mounted on the frame (100). The drive roller (400) is linked to the output shaft of the motor (300). The return section (220) of the conveyor belt (200) is linked to the drive roller (400). When the drive roller (400) rotates, it can drive the conveyor belt (200) to run through the return section (220).

5. A bidirectional weighing conveyor as described in claim 4, characterized in that: The output shaft of the motor (300) is provided with a first sprocket (310), and the drive roller (400) is provided with a second sprocket (410). The first sprocket (310) and the second sprocket (410) are connected by a transmission chain.

6. A bidirectional weighing conveyor as described in claim 4, characterized in that: It also includes a controller, and the weighing module (120) and the motor (300) are both electrically connected to the controller. The controller is configured to control the motor (300) to rotate forward or backward according to the signal output by the weighing module (120).

7. A bidirectional weighing conveyor as described in claim 1, characterized in that: The weighing module (120) is configured as a weighing sensor.

8. A bidirectional weighing conveyor as described in claim 1, characterized in that: It also includes two receiving mechanisms (500), which are located near the two ends of the frame (100). Each receiving mechanism (500) includes a fixed base (510), a linear drive element (520), and a receiving container (530). The fixed base (510) is located near the end of the frame (100). The linear drive element (520) is fixedly installed on the fixed base (510). The receiving container (530) is connected to the linear drive element (520). The linear drive element (520) can drive the receiving container (530) to move closer to or further away from the end of the frame (100).

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