Online dynamic weighing device
By designing an online dynamic weighing device and using cyclic conveying components and weighing components to achieve accurate weighing of a single product, it solves the problem that traditional automatic weighing equipment cannot accurately weigh, and improves weighing efficiency and accuracy.
Patent Information
- Application Number
- CN202421221189.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-30
AI Technical Summary
Traditional automatic weighing equipment cannot achieve accurate weighing of a single product, resulting in deviations in weighing methods and the inability to accurately control the weighing quality.
An online dynamic weighing device is designed, which uses a cyclic conveying component and a weighing component. The cyclic driving group drives the tray group to move cyclically to achieve accurate weighing of individual materials. The quantity of materials is controlled through the feeding component to ensure Only one material passes through at a time.
It achieves accurate weighing of individual products, reduces manual intervention, improves weighing efficiency and accuracy, and avoids overweight problems due to volume limitations.
Smart Images
Figure CN222373851U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of weighing equipment, in particular to an online dynamic weighing device. Background Art
[0002] With the continuous innovation and progress of agricultural technology, the output of agricultural products has increased year by year, which provides the market with more abundant agricultural product resources. However, with the increase in output, the traditional manual weighing method can no longer meet the actual needs. Traditional manual weighing not only requires a lot of manpower, but also has relatively low efficiency. Especially when faced with large-scale and high-intensity agricultural product weighing tasks, this method is obviously incapable of doing so.
[0003] Therefore, in order to solve this problem, some automatic weighing equipment have appeared on the market, which try to reduce the labor burden and improve weighing efficiency through mechanization and automation. However, these traditional automatic weighing equipment still have certain limitations in the weighing principle. Most of them adopt the method of weighing the total volume of the product rather than accurately weighing a single product. This weighing method usually transports the product continuously through a conveyor belt, and obtains the required total weight by accumulating the weight of the product on the conveyor belt. It is impossible to control the number of materials transported at the same position on the conveyor belt. Sometimes, several more materials are fed into the weighing container, resulting in overweight. At this time, manual removal is required, so there will be a certain deviation, and the weighing quality cannot be accurately controlled.
[0004] Therefore, although automatic weighing equipment has alleviated the pressure of manual weighing to a certain extent, the limitations of its weighing method still need to be addressed. In order to further improve the accuracy and efficiency of weighing, future agricultural technology needs to continue to explore more accurate and intelligent weighing methods to meet the growing demand for weighing agricultural products. Utility Model Content
[0005] In order to solve the above problems, the purpose of the utility model is to provide an online dynamic weighing device.
[0006] The utility model is implemented by the following method: an online dynamic weighing device comprises a frame, wherein a feed conveyor belt and a discharge conveyor belt are arranged in the frame, and a weighing circulation conveying mechanism arranged for docking the feed conveyor belt and the discharge conveyor belt; the weighing circulation conveying mechanism comprises a circulation conveying component and a weighing component, the circulation conveying component is provided with the weighing component at a place in a running path between a feed point docked with the feed conveyor belt and a discharge point docked with the discharge conveyor belt, the circulation conveying component comprises a circulation driving group and a box supporting group, a plurality of box supporting groups are arranged at intervals on the circulation driving group, the box supporting group is used to receive the material input by the feed conveyor belt, and the plurality of box supporting groups are driven by the circulation driving group to circulate and move in turn through the feed conveyor belt, the weighing component and the discharge conveyor belt; the feed conveyor belt is provided with a material feeding and handling component for controlling the amount of material fed into the box supporting group, and the weighing component is used to weigh the material fed into the circulation conveying component.
[0007] Preferably, the box holding group includes a box holding shaft, on which is mounted a box that can rotate relative to the box holding shaft; the box holding shaft is connected to the circulating drive group; the box holding shaft is also provided with a limit group to limit the flipping of the box holding, and a material unloading execution group is provided at the position where the circulating conveying component and the discharging conveyor belt are connected, and the material unloading execution group cooperates with the limit group to control the tilting and unloading of the box holding; a weighing execution group is provided at the position where the circulating conveying component and the weighing component are connected, and the weighing execution group cooperates with the limit group to control the tilting and weighing of the box holding.
[0008] Preferably, the center of gravity of the tray deviates from the axis center of the tray shaft, and a top stop block is provided on one side of the tray, which is located on the side opposite to the rotation direction of the center of gravity of the tray; the limiting group includes a limiting bracket, and the limiting bracket is fixed on the tray shaft avoiding the tray, and a crank is hinged on the limiting bracket, one end of the crank presses against the top stop block, and a return spring is provided between the crank and the limiting bracket, and the return spring is used to pull down the crank to press down against the top stop block.
[0009] Preferably, an angle limit block is further provided at the bottom of the limit bracket, and the angle limit block can abut against the bottom surface of the support box in the initial state.
[0010] Preferably, the unloading execution group includes an unloading driving member arranged in the frame and located above the unloading conveyor belt and above the circulating conveying assembly. The unloading driving member is transmission-connected to a pushing block. The pushing block is located above the running track of the crank and is driven by the unloading driving member to move downward against the upper surface of the crank away from the side of the pushing block.
[0011] Preferably, the weighing assembly includes a weighing sensor and a weighing guide plate, the weighing sensor is arranged in the weighing guide plate, and the weighing guide plate is arranged at one of the trajectories of the circulating conveying assembly from the feed point to the discharge point; the weighing execution group is a box supporting top plate, and the box supporting top plate is arranged above the weighing sensor, and the box supporting group passes between the weighing sensor and the box supporting top plate, and the box supporting top plate presses against the crank away from the top stop block.
[0012] Preferably, the circulating drive group includes a box holder returning member, and the box holder returning member includes a first guide plate and a first follower cam arranged on one side of the traveling direction of the box holder group; the first guide plate is arranged on the frame in front of the joint between the circulating conveying assembly and the discharge conveyor belt in the traveling direction; the first guide plate is provided with a first guide groove gradually upward on one side facing the first follower cam; the first follower cam can move along the first guide groove.
[0013] Preferably, the circulating drive group also includes two chains and two sprocket groups, each group of the sprocket groups is fixed on the front and rear sides of the frame respectively, wherein one chain is installed on the sprocket group on the front side, and the other chain is installed on the sprocket group on the rear side, and multiple box-carrying groups are equidistantly installed between the two chains; the sprockets of the front and rear groups of the sprocket groups are driven by a motor to rotate synchronously; the guide includes a second guide plate set at the bending deformation position of the chain for guiding each sprocket of the sprocket group on one side, and a second guide groove is provided on the second guide plate, and a second follower cam is provided on the side of the box-carrying group on each box-carrying shaft facing the second guide plate, and the second follower cam and the second guide groove cooperate to move the box-carrying group to the bending deformation position of the chain and keep it horizontal; the chain moves vertically upward at the joint with the feed conveyor belt, and the chain moves horizontally at the joint between the discharge conveyor belt and the weighing assembly.
[0014] Preferably, the material feeding and handling assembly includes a material handling drive and a material handling swing plate, the material handling drive is installed on one side of the material feeding conveyor belt, the material handling swing plate is connected to the material handling drive, and the material handling drive is used to drive the material handling swing plate to block the size of the cross-section through which the material passes on the material feeding conveyor belt.
[0015] Preferably, the material feeding and handling assembly also includes a material handling fixing plate, the material handling fixing plate is arranged at one side of the material feeding conveyor belt, one end of the material handling fixing plate is hinged to the material handling swinging plate, one end of the material handling driving member is hinged to the material handling fixing plate, and the other end of the material handling driving member is hinged to the material handling swinging plate, and the material handling driving member drives the material handling swinging plate to swing back and forth along the forward direction of the material feeding conveyor belt to control the passing size of the material feeding conveyor belt; a material handling brush plate is installed on the lower side of the material handling swinging plate; a material vibration assembly is provided at the material feeding end of the material feeding conveyor belt, and the material vibration assembly includes a vibration driving shaft and a vibration driving member, the vibration driving shaft is arranged above the material feeding end of the material feeding conveyor belt, an eccentric vibration wheel is installed on the vibration driving shaft, and the side of the eccentric vibration wheel facing away from the material feeding end abuts against the swingable vibration plate, and the vibration driving shaft is transmission connected with the vibration driving member.
[0016] The beneficial effects of the present invention are as follows: the present invention provides an online dynamic weighing device. Compared with the prior art, the present invention has at least the following technical effects: 1. By setting a circulating drive group, multiple tray groups are driven to pass through the feed conveyor belt, the weighing component and the discharge conveyor belt in sequence for loading, weighing and unloading; and an inlet material handling component is set on the feed conveyor belt to control the passing size of the feed conveyor belt to limit the number of materials passing through this position at the same time, so as to achieve only one material passing through each time, that is, a single material is fed into the tray group each time; then the tray group is sent to the weighing component for weighing, and the materials on the multiple tray groups are accumulated and calculated by the upper computer. When the materials of the required weight are combined, the materials on each tray group are unloaded one by one to the discharge conveyor belt, without being limited by the volume of the weighing container. 2. The box support group is composed of a box support shaft, a box support and a limit group, as well as a weighing execution group and a material discharge execution group, so that the box support group can automatically tilt and discharge materials at the feeding conveyor belt, and can tilt at the weighing component to press down the weighing component to weigh the weight, so as to complete automatic weighing and automatic material discharge, so as to cooperate with the automatic accumulation calculation combination to discharge materials of appropriate weight. 3. The box support is eccentrically arranged on the box support shaft, so that it can automatically tilt under gravity after the limit is released, so as to realize the weighing and material discharge actions. 4. Since the tilting angle of the box support is large when it is tilted to discharge materials, it cannot be reset by itself through the action of the crank and the reset spring, so a box support return member is provided. Through the setting of the guide groove, when the box support moves under the drag of the chain, the first follower cam on the side moves along the guide groove, and the box support can be reset to a horizontal state, so that it is convenient to return to the feeding place to receive materials again. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a side view of an online dynamic weighing device of the utility model.
[0018] Figure 2 It is a three-dimensional view of an online dynamic weighing device of the utility model.
[0019] Figure 3 It is a schematic diagram of the connection relationship between the feed conveyor belt, the feed handling component and the vibrating component of the utility model.
[0020] Figure 4 It is a structural schematic diagram of the discharging conveyor belt of the utility model.
[0021] Figure 5 It is a schematic diagram of the connection relationship between the circulating drive group and the box supporting group of the utility model.
[0022] Figure 6 It is a side view of the connection relationship between the circulating drive group and the box support group of the utility model.
[0023] Figure 7 yes Figure 6 A local enlarged schematic diagram of point A in the middle.
[0024] Figure 8 It is a three-dimensional diagram showing the connection relationship between the circulating drive group and the box supporting group of the utility model.
[0025] Fig. 9 yes Figure 8 A local enlarged schematic diagram of point B in the middle.
[0026] Fig.10 It is a three-dimensional structural schematic diagram of the box support group of the utility model.
[0027] Fig.11 It is a side view of the box support group of the present utility model.
[0028] Fig.12 It is a top view of the box support group of the present utility model.
[0029] Fig.13 It is a structural schematic diagram of a box-supporting returning member of the utility model.
[0030] Fig.14 It is a partial cross-sectional schematic diagram of the connection relationship between the tray body and the tray support of the utility model.
[0031] Fig.15 It is a structural schematic diagram of the material unloading execution group of the utility model.
[0032] Fig.16 It is a structural schematic diagram of the weighing assembly of the utility model.
[0033] Fig.17 It is a structural schematic diagram of a material feeding component of the utility model.
[0034] Description of the accompanying drawings: 1. Frame; 2. Feed conveyor belt; 21. Drive chain; 22. Rotating sprocket; 23. Rotating chain; 3. Discharge conveyor belt; 4. Circulating conveying assembly; 41. Circulating drive group; 411. Box holder return member; 4111. First guide plate; 4112. First follower cam; 4113. First guide groove; 4114. Bearing; 4115. Induction sheet; 4116. Return detection sensor; 412. Chain; 413. Sprocket group; 414. Second guide plate; 415. Second guide groove; 416. Second follower cam; 417. Guide rod; 42. Box holder group; 421. Box holder shaft; 422. Box holder; 4221. Box holder Main body; 4222, tray support; 4223, sensing convex part; 423, top block; 424, supporting shaft; 43, limit group; 431, limit bracket; 432, crank; 433, reset spring; 434, angle limit block; 44, material unloading execution group; 441, material unloading drive member; 442, push block; 45, weighing execution group; 5, weighing assembly; 51, weighing sensing member; 511, sensing strip; 52, weighing guide plate; 6, material feeding assembly; 61, material sorting drive member; 62, material sorting swing plate; 63, material sorting fixed plate; 64, material sorting brush plate; 65, brush plate lifting drive member; 7, material vibration assembly; 71, eccentric vibration wheel; 72, material vibration plate. DETAILED DESCRIPTION
[0035] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0036] See also Figures 1 to 17An online dynamic weighing device comprises a frame 1, wherein a feed conveyor belt 2 and a discharge conveyor belt 3 are arranged in the frame 1, and a weighing circulation conveying mechanism arranged for docking the feed conveyor belt 2 and the discharge conveyor belt 3; the weighing circulation conveying mechanism comprises a circulation conveying component 4 and a weighing component 5, the circulation conveying component 4 is provided with the weighing component 5 at a place in the running path between the feed point docking with the feed conveyor belt 2 and the discharge point docking with the discharge conveyor belt 3, the circulation conveying component 4 comprises a circulation driving group 41 and a tray group 42, a plurality of tray groups 42 are arranged at intervals on the circulating drive group 41, the tray groups 42 are used to receive materials input by the feed conveyor belt 2, and the plurality of tray groups 42 are driven by the circulating drive group 41 to move cyclically through the feed conveyor belt 2, the weighing component 5 and the discharge conveyor belt 3 in sequence; a material feeding component 6 is provided on the feed conveyor belt 2 for controlling the amount of material fed into the tray group 42, and the weighing component 5 is used for weighing the material fed into the circulating conveying component 4. By setting a circulating drive group 41, multiple tray groups 42 are driven to pass through the feed conveyor belt 2, the weighing component 5 and the discharge conveyor in sequence for loading, weighing and unloading; and an inlet material handling component 6 is set on the feed conveyor belt 2 to control the passing size of the feed conveyor belt to limit the number of materials passing through this position at the same time, so as to achieve only one material passing through each time, that is, a single material is fed to the tray group 42 each time; then the tray group 42 is sent to the weighing component 5 for weighing, and the materials on the multiple tray groups 42 are accumulated and calculated by the upper computer. When the materials of the required weight are combined, the materials on each tray group 42 are unloaded one by one to the discharge conveyor belt 3, without being limited by the volume of the weighing container.
[0037] See also Figure 1 , Figure 2 , Figures 5 to 7 , Figures 10 to 15Preferably, the box holding group 42 includes a box holding shaft 421, and a box holding box 422 that can rotate relative to the box holding shaft 421 is installed on the box holding shaft 421; the box holding shaft 421 is connected to the circulating drive group 41; the box holding shaft 421 is also provided with a limit group 43 to limit the flipping of the box holding box 422, and the position where the circulating conveying component 4 and the discharging conveyor belt 3 are connected is provided with a material unloading execution group 44, and the material unloading execution group 44 cooperates with the limit group 43 to control the tilting and unloading of the box holding box 422; the position where the circulating conveying component 4 and the weighing component 5 are connected is provided with a weighing execution group 45, and the weighing execution group 45 cooperates with the limit group 43 to control the tilting and weighing of the box holding box 422. The box holding group 42 consists of the box holding shaft 421, the box holding 422 and the limit group 43, as well as the weighing execution group 45 and the material discharging execution group 44, so that the box holding group 42 can automatically tilt at the feeding conveyor belt 2 to discharge materials, and can tilt at the weighing component 5 to press down the weighing component 5 to weigh the weight, so as to complete automatic weighing and automatic material discharging, so as to cooperate with the automatic accumulation calculation to combine the appropriate weight for discharging.
[0038] See also Figure 1 , Figure 2 , Figures 5 to 7 , Figures 10 to 15 Preferably, the center of gravity of the tray 422 deviates from the axis of the tray shaft 421, and a top block 423 is provided on one side of the tray 422, which is located on the side opposite to the rotation direction of the center of gravity of the tray 422; the limiting group 43 includes a limiting bracket 431, and the limiting bracket 431 is fixedly arranged on the tray shaft 421 to avoid the tray 422, and a crank 432 is hinged on the limiting bracket 431, and one end of the crank 432 is pressed against the top block 423, and a return spring 433 is provided between the crank 432 and the limiting bracket 431, and the return spring 433 is used to pull down the crank 432 and press down against the top block 423. The tray 422 is eccentrically arranged on the tray shaft 421, so that it can automatically tilt under gravity after the limit is released, so as to realize the actions of weighing and unloading. The crank 432 is pulled down by the return spring 433 to press against the top block 423 to overcome the eccentric downward force of the support box 422, so that the support box 422 can be in a horizontal state during the movement.
[0039] See also Figure 1 , Figure 2 , Figures 5 to 7 , Figures 10 to 15Preferably, the tray 422 includes a tray body 4221 and a tray support 4222, the tray body 4221 is fixed on the tray support 4222, the tray support 4222 is rotatably arranged on the tray shaft 421, the center of gravity of the tray support 4222 deviates from the axis of the tray shaft 421, and the top block 423 is arranged on one side of the tray support 4222, which is located on the side opposite to the rotation direction of the center of gravity of the tray support 4222 The limiting group 43 includes a limiting bracket 431, which is fixedly arranged on the box support 4222 to avoid the box support 4222. A crank 432 is hinged on the limiting bracket 431, and one end of the crank 432 abuts against the abutting block 423. A return spring 433 is provided between the crank 432 and the limiting bracket 431, and the return spring 433 is used to pull down the crank 432 to press against the abutting block 423. The box support body 4221 and the box support 4222 are assembled together through the support shaft 424, so that the box support body 4221 can swing at a certain angle on the box support 4222.
[0040] See also Figure 1 , Figure 2 , Figures 5 to 7 , Figures 10 to 15 Preferably, an angle limit block 434 is further provided at the bottom of the limit bracket 431, and the angle limit block 434 can be against the bottom surface of the initial state of the support box 4222. It plays a role of flipping buffer for the support box 422 and limits the flipping angle.
[0041] See also Figure 1 , Figure 2 , Figures 5 to 7 , Figures 10 to 15 Preferably, the material discharging execution group 44 includes a material discharging driving member 441 disposed in the frame 1 and located above the material discharging conveyor belt 3 and above the circulating conveying assembly 4. The material discharging driving member 441 is connected to the push block 442 in a transmission manner. The push block 442 is located above the running track of the crank 432 and is driven by the material discharging driving member 441 to move downward and press against the upper surface of the crank 432 away from the side of the push block 423. That is, the crank 432 overcomes the force of the return spring 433 and the part that presses against the push block 423 is tilted; the push block 423 loses the limit and the support box 422 can be turned downward around the support box shaft 421, so that the material on it slides onto the material discharging conveyor belt 3. The material discharging driving member 441 can be a telescopic cylinder.
[0042] See also Figure 1 , Figure 2 , Figures 5 to 7 , Figures 10 to 16Preferably, the weighing assembly 5 includes a weighing sensor 51 and a weighing guide plate 52, the weighing sensor 51 is arranged in the weighing guide plate 52, and the weighing guide plate 52 is arranged at one of the trajectories of the circulating conveying assembly 4 from the feeding point to the discharging point; the weighing execution group 45 is a box supporting top plate, and the box supporting top plate is arranged above the weighing sensor 51, and the box supporting group 42 passes between the weighing sensor 51 and the box supporting top plate, and the box supporting top plate presses against the crank 432 away from the top stop block. The top plate of the box holder does not need to be moved. When the circulating drive group 41 drives the box holder 422 to move to the position where the top plate of the box holder is located, the crank 432 on it will abut against the top plate of the box holder, which will cause the part of the crank 432 abutting against the top block 423 to slightly tilt up, and the box holder 422 will have a tendency to flip downward, that is, it can slightly tilt and contact the weighing sensor 51 so that the mass of the material on it can be weighed; the role of the weighing guide plate 52 is to guide the movement of the box holder 422 when it is slightly flipped by the top plate of the box holder, but it has not moved to the weighing sensor 51 at this time, so as to prevent the box holder 422 from tilting excessively and causing the material to fall. The purpose of tilting first and then moving into the sensor is to avoid the instantaneous inertia of tilting causing the value of the weighing sensor 51 to fluctuate too much, so as to ensure the accuracy of the weighing value. The upper surface of the weighing guide plate 52 is in the same plane as the upper surface of the weighing sensor 51. The box holder top plate does not extend to this point above the position where it leaves the weighing sensor 51. Then the crank 432 is driven by the return spring 433 to press against the top block 423 again. Since the tilting angle of the support box 422 is not large at this time, the force of the return spring 433 can tend to return the support box 422 to the initial horizontal state. The inlet side of the box tray body 4221 (i.e., the side away from the box tray shaft 421) is rotatably connected to the side of the box tray support 4222 away from the box tray shaft 421 via the support shaft 424, and a limiting groove is provided on the box tray support 4222 for installing the support shaft 424, and the support shaft 424 is connected to the box tray body 4221 via a straight rod. When the box tray support 4222 rotates around the box tray shaft 421 to dump the material and rotates to the end of the trajectory, the box tray body 4221 will rotate around the support shaft 424 relative to the box tray shaft 421 by a certain angle, thereby increasing the tilting angle of the box tray body 4221 to facilitate complete pouring of the material, and the limiting groove serves to limit the rotation angle of the support shaft 424, that is, to prevent the box tray body 4221 from rotating too much relative to the box tray support 4222 and being unable to reset.Specifically, the weighing sensing element 51 includes a sensing strip 511 and a weighing sensor connected to the sensing strip 511. A sensing protrusion 4223 corresponding to the sensing strip 511 is provided on the lower surface of the tray body 4221. When weighing, the sensing strip 511 and the sensing protrusion 4223 are abutted against each other. Since the tray body 4221 can freely rotate within a certain range relative to the tray support 4222, the sensing strip 511 can lift the tray body 4221 and rotate it around the support shaft 424 by a certain angle, so that the weight of the tray body 4221 acts on the sensing strip 511 instead of transferring the weight through the tray support 4222. Then, the sensing strip 511 transfers the weight to the weighing sensor to obtain the weight of the material in the tray body 4221.
[0043] See also Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figures 8 to 12 Preferably, the circulation drive group 41 includes a box-carrying return member 411, and the box-carrying return member 411 includes a first guide plate 4111 and a first follower cam 4112 provided on one side of the traveling direction of the box-carrying 422. The first guide plate 4111 is provided on the frame 1 in front of the joint between the circulating conveying assembly 4 and the discharge conveyor belt 3 in the traveling direction. The first guide plate 4111 is provided with a first guide groove 4113 gradually upward on one side facing the first follower cam 4112; the first follower cam 4112 can move along the first guide groove 4113. The first guide plate 4111 is provided with a bearing 4114 on the same side surface as the first guide groove 4113, which is located below the first guide groove 4113 and can contact the lower surface of the box-carrying 422 (can play a role of guiding and resetting together with the first follower cam 4112). Since the tilting angle of the support box 422 is large when it is tilted to unload materials, it cannot be reset by itself through the action of the crank 432 and the reset spring 433, so a support box return member 411 is provided. Through the setting of the guide groove therein, when the support box 422 is moved under the drag of the chain 412, the first follower cam 4112 on the side moves along the guide groove, and the support box 422 can be reset to a horizontal state, so that it is convenient to return to the feeding position to receive materials again.
[0044] See also Figures 10 to 13 Preferably, a sensing sheet 4115 is provided on one side of the first follower cam 4112 of each box support 4222, and a return detection sensor 4116 is installed on the first guide plate for detecting the sensing sheet 4115. When the return detection sensor 4116 senses the sensing sheet 4115, it indicates that the box support has returned to the center.
[0045] See also Figure 1 , Figure 2 , Figures 5 to 9Preferably, the circulating drive group 41 also includes two chains 412 and two groups of sprocket groups 413, each group of the sprocket groups 413 is fixed to the front and rear sides of the frame 1 respectively, wherein one chain 412 is installed on the sprocket group 413 on the front side, and the other chain 412 is installed on the sprocket group 413 on the rear side, and a plurality of the bracket groups 42 are equidistantly installed between the two chains 412; the sprockets of the front and rear groups of the sprocket groups 413 are driven by a motor to rotate synchronously; the guide includes guiding the chain of each sprocket of the sprocket group 413 on one side. A second guide plate 414 is provided at the bending deformation of the chain 412, and a second guide groove 415 is provided on the second guide plate 414. A second follower cam 416 is provided on the side of each box-carrying group 42 on the box-carrying shaft 421 facing the second guide plate 414. The second follower cam 416 and the second guide groove 415 cooperate to move the box-carrying group to the bending deformation of the chain and keep it horizontal; the chain moves vertically upward at the joint with the feeding conveyor belt 2, and the chain 412 moves horizontally at the joint of the discharging conveyor belt 3 and the weighing assembly 5. Through the guidance of multiple sprockets, a chain 412 circulation loop in an inverted L shape can be formed. The feeding conveyor belt 2 is located at the angle of the L shape, and the discharging conveyor belt 3 is located in the L shape formed by the chain 412 and above the feeding conveyor belt 2. The three-dimensional space arrangement is used to help reduce the floor space. Specifically, the box-carrying shaft 421 is provided with four second follower cams 416 through a fixed cam mounting frame, and the box-carrying shaft 421 can rotate relative to the chain 412, and a plurality of second guide grooves 415 are provided on each second guide plate 414, and the second guide grooves 415 are arc-shaped, matching the movement trajectory of the corresponding second follower cams 416; and the sprocket group 413 is provided with a guide rod 417 between two sprockets adjacent to each other in the direction of the running trajectory of the chain 412, which is used to cooperate with the two second follower cams 416 to guide the box-carrying group to move in a straight line direction, such as when moving horizontally, the two second follower cams 416 on the same horizontal plane cooperate with the guide rod 417 to ensure that the box-carrying group does not deflect when moving, and when moving vertically, the two second follower cams 416 on the same vertical plane cooperate with the vertical guide rod 417 to limit the deflection of the box-carrying group; and when moving at a turning point, the four second follower cams 416 cooperate with the second guide grooves 415 to keep the box-carrying group horizontal.
[0046] See also Figures 1 to 3 , Fig.17Preferably, the feeding material handling assembly 6 includes a material handling driving member 61 and a material handling swing plate 62, wherein the material handling driving member 61 is installed on one side of the feeding conveyor belt 2, and the material handling swing plate 62 is connected to the material handling driving member 61, and the material handling driving member 61 is used to drive the material handling swing plate 62 to block the size of the material passing cross section on the feeding conveyor belt 2. Only one material can pass through the feeding conveyor belt 2 at a time. The feeding conveyor belt 2 gradually rises from one end away from the circulation drive group 41 to a section close to it, and a material blocking enclosure is provided at the end of the feeding conveyor belt away from the circulation drive group 41.
[0047] See also Figures 1 to 3 , Fig.17 Preferably, the material feeding and handling assembly 6 also includes a material sorting fixing plate 63, the material sorting fixing plate 63 is arranged on one side of the material feeding conveyor belt 2, one end of the material sorting fixing plate 63 is hinged to the material sorting swinging plate 62, one end of the material sorting driving member 61 is hinged to the material sorting fixing plate 63, the other end of the material sorting driving member 61 is hinged to the material sorting swinging plate 62, the material sorting driving member 61 drives the material sorting swinging plate 62 to swing back and forth along the forward direction of the material feeding conveyor belt 2 to control the passing size of the material feeding conveyor belt 2; a material sorting brush plate 64 is installed on the lower side of the material sorting swinging plate 62; a brush plate lifting driving member 65 is installed on the material sorting swinging plate 62 of the roller conveyor belt, and the material sorting brush plate 64 is connected to the brush plate lifting driving member 65. The material sorting drive member 61 and the brush plate drive are telescopic cylinders. The extension and retraction of the cylinder can control the swing angle of the swing plate, that is, it can control the angle of the material sorting brush plate 64. When the material sorting swing plate 62 is opened to the maximum angle, the brush plate lifting drive member 65 drives the material sorting brush plate 64 to move downward, so as to control the passing area of the feed conveyor belt 2, thereby allowing only one material to pass through the feed conveyor belt 2 at a time; the brush plate is provided to act as a buffer with the material to avoid hard contact between the material sorting swing plate 62 and the material to damage the surface of the material.
[0048] See also Figures 1 to 3 , Fig.17Preferably, the feeding conveyor belt 2 is composed of a plurality of parallel roller conveyor belts, and one side of each roller conveyor belt is provided with the feeding material handling assembly 6; the material handling brush plate 64 can be folded up and fitted with the material handling fixing plate 63, or opened to control the passing size of the roller conveyor belt so that only one material passes through at a time; the roller conveyor belt is driven to move cyclically by a driving sprocket and a driving chain 21, and each roller connecting shaft is fixed to the driving chain 21, and each roller connecting shaft is also provided with a self-rotating sprocket 22, and a self-rotating chain 23 is provided on one side of the roller conveyor belt, and the self-rotating chain 23 is parallel to the upper roller, and the self-rotating chain 23 can be contacted and driven with the self-rotating sprocket 22, and the driving chain 21 drives the roller to rotate counterclockwise around the frame of the entire feeding conveyor belt 2, and at the same time, the self-rotating chain 23 is driven to rotate by the motor, and the self-rotating sprocket 22 and the self-rotating chain 23 cooperate to drive, so that the self-rotating sprocket 22 and the self-rotating chain 23 are relatively displaced, so that the self-rotating sprocket 22 rotates and then drives the roller to rotate. Multiple conveyor belts facilitate synchronous feeding of multiple trays 422. The roller can rotate during movement, which helps to more smoothly convey the material into the tray 422. When the preferred tray body 4221 moves upward at the joint with the feed conveyor belt 2, the end face of the tray 422 facing the feed conveyor belt 2 is low, and the height of the end face facing away is significantly higher than the end facing away. At this point, baffles are provided at the ends facing away and facing away of the tray of the circular drive group 41. Similarly, the height of the baffle at the end facing away is higher than the baffle at the end facing away, so as to prevent the material from escaping from the tray 422. Each sprocket wheel is driven by a motor.
[0049] See also Figures 1 to 3 Preferably, the feeding end of the feeding conveyor belt 2 is provided with a vibrating material assembly 7, and the vibrating material assembly 7 includes a vibrating drive shaft and a vibrating drive member. The vibrating drive shaft is arranged above the feeding end of the feeding conveyor belt 2, and an eccentric vibrating wheel 71 is installed on the vibrating drive shaft. The side of the eccentric vibrating wheel 71 away from the feeding end abuts against a vibrating material plate 72 that can swing, and the vibrating drive shaft is in transmission connection with the vibrating drive member. The vibrating material plate 72 is driven by the eccentric vibrating wheel 71 to swing back and forth to vibrate the materials stacked together, so as to facilitate the subsequent feeding of the material handling assembly 6. The vibrating drive member can preferably be a motor.
[0050] See also Figure 1 to Figure 2 , Figure 4 Preferably, the discharge conveyor belt 3 includes a plurality of conveyor belts arranged in parallel, and each conveyor belt can transport in both directions to improve the discharge efficiency.
[0051] See also Figures 1 to 17Preferably, each box-carrying shaft 421 is provided with a plurality of boxes 422, and the number of boxes 422 corresponds to the number of roller conveyor belts of the feeding conveyor belt; for example, there are four roller conveyor belts, and the corresponding discharging conveyor belts 3 are also provided with four boxes 422, then each box-carrying shaft 421 is provided with four boxes; there are also four corresponding box-carrying return members 411, which are used to drive each box-carrying shaft 421 to return to the original position; there are also four corresponding weighing sensors 51 and weighing guide plates 52; in this way, four materials can be loaded into four boxes 422 at a time, and the four boxes 422 synchronously enter the corresponding weighing sensors 51 for weighing; after weighing, they are moved, and the preferred unloading drive member 441 of the unloading execution group 44 can be provided with four rows and four columns. The above is only the preferred arrangement quantity in this embodiment, and other quantities and arrangement methods can be selected according to actual needs, and are not limited to this. The best roller conveyor belts are grouped in pairs, and one of the two groups can be controlled independently to convey. The rollers of the feed conveyor belt will rotate by themselves. The purpose is to drive the material to rotate by the self-rotation of the rollers, so that workers can see whether there are any defects on the surface of the material. The drive and circulation conveyor components of the two groups of roller conveyor belts can use the same motor, and the clutch can be used to independently control whether the two groups of roller conveyor belts rotate. The circulation conveyor component also has a clutch, which can be used to control whether the circulation conveyor component moves in a circular motion.
[0052] The utility model has the following working principle:
[0053] The material is poured into the feeding conveyor belt 2. The feeding material handling component 6 on the feeding conveyor belt 2 drives the material handling swing plate 62 to expand to a suitable angle according to the size of the material. When the material handling swing plate is expanded to the maximum angle, the brush plate lifting drive 65 drives the brush plate to descend, and controls the passing area so that there is only one material in each row of the feeding conveyor belt 2 after passing through the handling component, and enters the material box of the upper part of the circulation drive group 41 through the transportation of the feeding conveyor belt 2. At this time, the return spring 433 and the crank 432 limit the support box 422 and prevent it from moving. The support box group 42 is driven by the circulation drive group 41 to move to the top of the weighing guide plate 52. At this time, the top plate of the support box at this place is aligned with the material passing here. The cranks 432 on the box-carrying group 42 press against each other, and one end of the top block 423 of the crank 432 presses against the box-carrying group 422 and tilts upward; the box-carrying group 422 can swing down because of its eccentric setting so that its lower surface contacts the weighing guide plate 52, but it cannot swing down at a large angle due to the existence of the weighing guide plate 52, and then it is driven by the circulating drive group 41 to continue to move to the position where the weighing sensor 51 is set on the weighing guide plate 52, and the weighing sensor 51 weighs the weight, and when the circulating drive group 41 drives the box-carrying group 42 to continue to move to the edge of the weighing guide plate 52, the upper weighing top plate disappears, and the return spring 433 and the crank 432 drive the box-carrying group 422 to maintain its initial position, and then it is driven by the circulating drive group 41 to move to the position aligned with the discharge outlet. The position where the conveyor belt 3 docks (in this process, the host computer automatically selects multiple tray groups 42 to weigh the required weight of materials. For example, if 5kg of material needs to be weighed, the four trays on the tray axis of each tray group are weighed at the same time, so the host computer has 4 weight data, and the weight data of each tray of the tray group that has been weighed but not yet unloaded has also been recorded in the host computer, that is, there are n material weight data to choose from, and the weight in each tray has a corresponding number in the host computer (which can be numbered according to the weighing time and weighing position), so that the host computer can select several trays whose weight can reach 5kg after accumulation from these tray weight data. The material is unloaded to one of the discharging conveyors; at this time, the other discharging conveyor belts can receive materials from other trays that can be combined to reach a mass of 5kg. After unloading, the upper computer eliminates the weight data of the unloaded trays). The corresponding unloading driving member 441 of the unloading execution group 44 pushes the pushing block 442 out, so that the crank 432 pushed by the push block 423 of the corresponding tray 422 (the tray 422 selected by the upper computer) is lifted up, and the corresponding tray 422 is turned over by the gravity of itself and the material and unloaded to the discharging conveyor belt 3, and the discharging conveyor belt 3 outputs the material; then the empty tray 422 is driven by the circulation driving group 41 to continue to move forward to the tray return member 411;The first follower cam 4112 of the tray 422 moves forward along the first guide groove 4113 of the first guide plate 4111 (the first guide plate 4111 also has a bearing 4114, and the tray 422 passes through the bearing 4114 to generate a driving force to push the tray 422 backward), and the tray 422 returns to the horizontal position after passing through the first guide plate 4111, and the top block 423 and the crank 432 are again against each other; then the circulating drive group 41 drives to continue to move back to the docking position of the infeed conveyor belt 2 to receive the material, and the sprocket of the sprocket group 413 on one side is provided with a second guide plate 414, and the second follower cam 416 of the tray group 42 facing the second guide plate 414 side will move along the second guide groove 415 on the second guide plate 414 (this process is to make the tray group 42 horizontally or vertically move in a horizontal state), so that the tray group 42 is in a horizontal state at the material receiving position, and to prevent the material from falling off from the tray 422 during the circulating movement. ;
[0054] Several points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.
[0055] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the usual design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.
[0056] Finally, the above is only a preferred implementation of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.
[0057] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications without departing from the principle of the utility model should also be regarded as within the protection scope of the utility model.
Claims
1. An online dynamic weighing device, comprising a frame, characterized in that: The frame is provided with a feed conveyor belt and a discharge conveyor belt, and a weighing circulation conveying mechanism provided for docking the feed conveyor belt and the discharge conveyor belt; the weighing circulation conveying mechanism includes a circulation conveying component and a weighing component, the circulation conveying component is provided with the weighing component at a place in the running path between the feed point docking with the feed conveyor belt and the discharge point docking with the discharge conveyor belt, the circulation conveying component includes a circulation driving group and a box supporting group, a plurality of box supporting groups are arranged at intervals on the circulation driving group, the box supporting group is used to receive the material input by the feed conveyor belt, and the plurality of box supporting groups are driven by the circulation driving group to circulate and move in turn through the feed conveyor belt, the weighing component and the discharge conveyor belt; the feed conveyor belt is provided with a material feeding and handling component for controlling the amount of material fed into the box supporting group, and the weighing component is used to weigh the material fed into the circulation conveying component.
2. An online dynamic weighing device according to claim 1, characterized in that: The box holding group includes a box holding shaft, on which a box holding box that can rotate relative to the box holding shaft is mounted; the box holding shaft is connected to the circulating drive group; a limiting group is also provided on the box holding shaft to limit the flipping of the box holding box, a material unloading execution group is provided at the position where the circulating conveying component and the discharging conveyor belt are connected, and the material unloading execution group cooperates with the limiting group to control the tilting and unloading of the box holding box; a weighing execution group is provided at the position where the circulating conveying component and the weighing component are connected, and the weighing execution group cooperates with the limiting group to control the tilting and weighing of the box holding box.
3. An online dynamic weighing device according to claim 2, characterized in that: The center of gravity of the tray deviates from the axis of the tray shaft, and a top stop block is provided on one side of the tray, which is located on the side opposite to the rotation direction of the center of gravity of the tray; the limiting group includes a limiting bracket, and the limiting bracket is fixed on the tray shaft avoiding the tray, and a crank is hinged on the limiting bracket, one end of the crank presses against the top stop block, and a reset spring is provided between the crank and the limiting bracket, and the reset spring is used to pull down the crank to press down against the top stop block.
4. An online dynamic weighing device according to claim 3, characterized in that: An angle limiting block is also provided at the bottom of the limiting bracket, and the angle limiting block can be abutted against the bottom surface of the supporting box in the initial state.
5. An online dynamic weighing device according to claim 3, characterized in that: The unloading execution group includes an unloading driving member arranged in the frame and located above the unloading conveyor belt and above the circulating conveying component. The unloading driving member is transmission-connected to a pushing block. The pushing block is located above the running track of the crank and is driven by the unloading driving member to move downward against the upper surface of the crank away from the side of the pushing block.
6. An online dynamic weighing device according to claim 3, characterized in that: The weighing assembly includes a weighing sensor and a weighing guide plate, wherein the weighing sensor is arranged in the weighing guide plate, and the weighing guide plate is arranged at one of the trajectories of the circulating conveying assembly from the feeding place to the discharging place; the weighing execution group is a box supporting top plate, and the box supporting top plate is arranged above the weighing sensor, and the box supporting group passes between the weighing sensor and the box supporting top plate, and the box supporting top plate presses against the crank and is away from the top stop block.
7. An online dynamic weighing device according to claim 2, characterized in that: The circulating drive group includes a box holder returning member, and the box holder returning member includes a first guide plate and a first follower cam arranged on one side of the moving direction of the box holder group. The first guide plate is arranged on the frame in front of the joint between the circulating conveying assembly and the discharge conveyor belt in the moving direction. The first guide plate is provided with a first guide groove which gradually moves upward on a side facing the first follower cam; the first follower cam can move along the first guide groove.
8. An online dynamic weighing device according to claim 2, characterized in that: The circulating drive group also includes two chains and two sprocket groups, each group of the sprocket groups is fixed on the front and rear sides of the frame respectively, wherein one chain is installed on the sprocket group on the front side, and the other chain is installed on the sprocket group on the rear side, and multiple box-carrying groups are equidistantly installed between the two chains; the sprockets of the front and rear sprocket groups are driven by a motor to rotate synchronously; it also includes a second guide plate provided at the bending deformation position of each sprocket of the sprocket group on one side to guide the chain, a second guide groove is provided on the second guide plate, and a second follower cam is provided on the side of the box-carrying group on each box-carrying shaft facing the second guide plate, and the second follower cam and the second guide groove cooperate to move the box-carrying group to the bending deformation position of the chain and keep it horizontal; the chain moves vertically upward at the joint with the feed conveyor belt, and the chain moves horizontally at the joint between the discharge conveyor belt and the weighing assembly.
9. An online dynamic weighing device according to claim 1, characterized in that: The material feeding and handling assembly includes a material handling drive and a material handling swing plate. The material handling drive is installed on one side of the feeding conveyor belt. The material handling swing plate is connected to the material handling drive. The material handling drive is used to drive the material handling swing plate to block the size of the material passing cross-section on the feeding conveyor belt.
10. An online dynamic weighing device according to claim 9, characterized in that: The material feeding and handling assembly also includes a material handling fixing plate, the material handling fixing plate is arranged at one side of the material feeding conveyor belt, one end of the material handling fixing plate is hinged to the material handling swinging plate, one end of the material handling driving member is hinged to the material handling swinging plate, and the other end of the material handling driving member is hinged to the material handling swinging plate, and the material handling driving member drives the material handling swinging plate to swing back and forth along the forward direction of the material feeding conveyor belt to control the passing size of the material feeding conveyor belt; a material handling brush plate is installed on the lower side of the material handling swinging plate; a material vibration assembly is provided at the material feeding end of the material feeding conveyor belt, and the material vibration assembly includes a vibration driving shaft and a vibration driving member, the vibration driving shaft is arranged above the material feeding end of the material feeding conveyor belt, an eccentric vibration wheel is installed on the vibration driving shaft, and the side of the eccentric vibration wheel facing away from the material feeding end abuts against the swingable vibration plate, and the vibration driving shaft is transmission-connected with the vibration driving member.