Weighing conveyor with lifting mechanism

Abstract

The utility model discloses a weighing conveyor with a lifting mechanism, which relates to the technical field of weighing conveyors and comprises a base, a conveying unit is arranged on the base, the conveying unit comprises a bottom plate, a passing opening is formed in the bottom plate, a weighing unit is arranged on the base, and a lifting unit for controlling the conveying unit to lift is arranged between the base and the bottom plate. The lifting unit comprises a driving cylinder, a driving plate is arranged at the output end of the driving cylinder, the two ends of the driving plate are each connected with a driving rod, one end of each driving rod is connected with a wedge block, a roller is arranged on each wedge block in a matched mode and connected to one side of the bottom plate, a first sliding block is arranged on the side, close to the base, of each wedge block, and a first sliding rail is arranged on each first sliding block in a matched mode. The lifting unit further comprises a guide mechanism used for controlling the conveying unit to ascend and descend, the conveying unit is controlled by the lifting unit to ascend and descend along the guide mechanism, the weight of materials can be totally concentrated on the weighing unit, the weighing precision of the materials is improved, the length problem of the materials does not need to be considered, and the applicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing conveyors, in particular to a weighing conveyor with a lifting mechanism. Background Art

[0002] Weighing conveyor is a kind of equipment that cooperates with the production line to realize the weight inspection of products and materials during the production process. The weighing conveyor not only realizes the normal transportation of materials, but also can inspect the weight of the produced materials, thereby improving the quality and accuracy of product production, effectively controlling production costs and realizing lean management of products.

[0003] The existing utility model patent with the publication number CN 216297169 U and the publication date 2022.04.15 discloses a production line weighing conveyor, including a conveyor belt, a weighing platform is provided on the top of the adjacent side of the conveyor belt, the height of the weighing platform is consistent with the height of the two adjacent conveyor belts, a display screen is fixedly installed on the back of the weighing platform, two tracks are symmetrically provided on the front of the middle of the bottom end of the conveyor belt, and a collection box is slidably connected to the middle of the adjacent side of the two tracks, and the position of the collection box corresponds to the position of the weighing platform;

[0004] The utility model is provided with an extension plate, a hydraulic cylinder, a telescopic rod and a collection box. When a product is found unqualified after being detected by a weighing platform, an operator manually turns on the switch of the hydraulic cylinder, and the operation of the hydraulic cylinder drives the telescopic rod to push the collection box. The collection box moves to the front of the weighing platform under the limit of the track, so as to receive the unqualified products, avoid the problem of direct material discharge causing damage to the unqualified products, and increase the practicality of the device.

[0005] However, there is also a problem in this patent: when weighing materials, since the height of the weighing platform is fixed, if the length of the material from the conveyor belt is greater than the length of the weighing platform, only the middle of the material falls on the weighing platform, while the two ends of the material are still overlapped on the conveyor belts on both sides. In this way, the weight of the entire material cannot fall completely on the weighing platform, and the weighing result will be greatly different from the actual weight. Therefore, when using the weighing conveyor, it is necessary to ensure that the length of the material must be less than or equal to the length of the entire weighing platform. Therefore, the weighing conveyor has great limitations during use and cannot guarantee the weighing results of the materials.

[0006] Therefore, there is an urgent need for a weighing conveyor with a lifting mechanism to improve the weighing accuracy of materials and reduce the length requirement of weighing materials to improve applicability. Utility Model Content

[0007] In view of the above technical problems, the present utility model provides a weighing conveyor with a lifting mechanism, which is used to solve the problems that the existing weighing conveyor has requirements for the length of materials during weighing, resulting in low adaptability and inability to ensure the weighing accuracy of materials.

[0008] The above technical object of the present utility model is achieved through the following technical solutions:

[0009] A weighing conveyor with a lifting mechanism includes a base. A conveying unit is provided on the base. The conveying unit includes a bottom plate. A through opening is formed on the bottom plate. A weighing unit is provided in the through opening of the base. A lifting unit for controlling the lifting of the conveying unit is provided between the base and the bottom plate. The lifting unit includes a driving cylinder. A driving plate is provided at the output end of the driving cylinder. A driving rod is connected to each end of the driving plate. One end of the driving rod is connected with a wedge block. A roller is cooperatively provided on the wedge block. The roller is connected to one side of the bottom plate. A first sliding block is provided on the side of the wedge block close to the base. A first sliding rail is cooperatively provided on the first sliding block;

[0010] The lifting unit further includes a guiding mechanism for controlling the lifting of the conveying unit.

[0011] Further, the guiding mechanism includes a plurality of second sliding rails vertically provided on the base. The plurality of second sliding rails are distributed on both sides of the bottom plate. Second sliding blocks are slidably cooperated on the second sliding rails. The second sliding blocks are respectively connected to both sides of the bottom plate.

[0012] Further, the wedge block is provided with a slope portion. A flat portion is provided at the highest point of the slope portion. The roller acts on the slope portion and the flat portion.

[0013] Further, limiting plates are respectively provided on both sides of the wedge block. The roller is located between the two limiting plates.

[0014] Further, the conveying unit further includes frame plates symmetrically provided on the bottom plate. A conveying shaft is rotatably provided between the frame plates. A conveying motor is provided at one end of the conveying shaft. Conveying gears are provided at both ends of the conveying shaft. A conveyor belt is provided on the frame plates through the corresponding conveying gears.

[0015] Further, a receiving platform is horizontally provided on the frame plate. The receiving platform and the conveyor belt are at the same height position. A tray is lapped on the receiving platform.

[0016] Further, a guiding plate is provided on one side of the receiving platform.

[0017] Further, blocking blocks are equidistantly provided on the conveyor belt. The distance between the blocking blocks can accommodate the tray.

[0018] Furthermore, the weighing unit includes a plurality of columns disposed on the base. A load-bearing plate is provided at the top of the plurality of columns, and a weighing device is provided on the load-bearing plate.

[0019] In summary, the beneficial technical effects of the present utility model are as follows:

[0020] (1) The driving cylinder drives the wedge block to slide along the first slide rail through the driving rod. The wedge block further acts on the roller to drive the entire conveying unit to move up and down along the guiding mechanism. When the material reaches above the weighing unit, the driving cylinder controls the wedge block to slide out to realize the descent of the conveying unit, so that the entire weight of the material is concentrated on the weighing unit. In this way, the interference caused by the length factor during material weighing is avoided, and there is no need to consider the length of the material, thereby improving the weighing accuracy and applicability of the material.

[0021] (2) The cooperation of the second slide rail and the second slider can provide a guiding effect in the vertical direction when the conveying unit moves up and down, and at the same time, it also avoids the left and right swing of the conveying unit during the up and down movement, improving the stability.

[0022] (3) The receiving platform can receive the weight of the tray and the material during the transfer process, avoiding concentrating the weight on the conveyor belt. At the same time, the guiding plate provides guidance for the tray during the conveying process to prevent the tray from deviating.

[0023] (4) The stoppers on the conveyor belt can transmit the power from the conveyor motor to act on the tray to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0025] Figure 2 is Figure 1 a schematic diagram from another angle;

[0026] Figure 3 is Figure 1 a schematic diagram with the tray hidden;

[0027] Figure 4 is Figure 3 a schematic diagram with the weighing device hidden;

[0028] Figure 5 is Figure 1 an enlarged schematic diagram of part A;

[0029] Figure 6 is Figure 1 an enlarged schematic diagram of part B;

[0030] Figure 7 is Figure 3 an enlarged schematic diagram of part C.

[0031] Reference numerals: 1, base; 2, bottom plate; 3, through hole; 4, support plate; 5, conveying shaft; 6, conveying gear; 7, driven gear; 8, conveyor belt; 9, conveying motor; 10, receiving table; 11, guide plate; 12, driving cylinder; 13, driving plate; 14, driving rod; 15, wedge block; 16, first slider; 17, first slide rail; 18, roller; 19, second slider; 20, second slide rail; 21, limiting plate; 22, ramp portion; 23, flat portion; 24, stop block; 25, adjusting plate; 26, adjusting hole; 27, tray; 28, column; 29, load-bearing plate; 30, braking member; 31, weighing device. Detailed implementation manners

[0032] The present utility model will be clearly and completely described below in conjunction with embodiments.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0034] In the description of the embodiments, unless otherwise clearly specified and limited, terms such as "arranged" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or connected through an intermediate medium, or the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0035] See the attached Figure 1-7 , which shows a weighing conveyor with a lifting mechanism, including a base 1. A conveying unit for conveying the progress of materials is arranged on the base 1. The conveying unit includes a horizontally arranged bottom plate 2. A through hole 3 is opened in the center of the bottom plate 2. A weighing unit is arranged in the base 1 at the through hole 3. The weighing unit includes four columns 28 arranged in a rectangle on the base 1. A load-bearing plate 29 is arranged at the top of the four columns 28. A weighing device 31 is arranged on the load-bearing plate 29. The weighing device 31 is specifically a digital display electronic scale;

[0036] Meanwhile, the conveying unit further includes two shelf plates 4 symmetrically fixed on the bottom plate 2. A conveying shaft 5 is rotatably arranged between one ends of the two shelf plates 4. A conveying gear 6 is respectively arranged at both ends of the conveying shaft 5. Meanwhile, a conveying motor 9 for controlling the rotation of the conveying shaft 5 is provided at one end of the conveying shaft 5. An adjusting plate 25 is provided at one end of each shelf plate 4 away from the gear of the conveying gear 6. An adjusting hole 26 is formed in the adjusting plate 25. A driven gear 7 is arranged on the adjusting plate 25 through the adjusting hole 26. A conveyor belt 8 is arranged between the driven gear 7 and the corresponding conveying gear 6. The conveyor belt 8 can be one of a synchronous belt or a chain;

[0037] In addition, a receiving platform 10 is horizontally arranged on one side of the shelf plate 4 away from the bottom plate 2. The receiving platform 10 is coplanar with the conveyor belt 8. Meanwhile, a tray 27 for carrying materials is also lapped on the receiving platform 10. During use, the weight from the tray 27 is received through the receiving platform 10, and at the same time, the conveyor belt 8 provides power for the tray 27 to move forward to realize the transfer of materials;

[0038] Furthermore, a lifting unit for controlling the vertical lifting of the conveying unit is arranged between the conveying unit and the base 1. The lifting unit specifically includes a driving cylinder 12 arranged on the base 1. The driving cylinder 12 is arranged along the material traveling direction. The driving cylinder 12 can be one of an oil cylinder, a pneumatic cylinder or an electric cylinder. A driving plate 13 is horizontally arranged at the output end of the driving cylinder 12. A driving rod 14 is respectively arranged at both ends of the driving plate 13. A wedge block 15 with a right trapezoidal cross-section is arranged at one end of the driving rod 14. The wedge blocks 15 are respectively arranged on both sides of the through port 3. A first slider 16 is arranged on the side of the wedge block 15 close to the bottom plate 2. A first slide rail 17 is arranged in cooperation with the first slider 16. The first slide rail 17 is fixed on the base 1. Meanwhile, the wedge block 15 is provided with a slope portion 22. A flat portion 23 is arranged at the highest point of the slope portion 22. A roller 18 is arranged in cooperation with the wedge block 15 through the slope portion 22. The roller 18 is installed on the bottom plate 2 through a roller bracket;

[0039] Further, two second sliders 19 are vertically provided on each side of the bottom plate 2. A second slide rail 20 is cooperatively provided on the second slider 19. One end of the second slide rail 20 is fixed on the base 1. During use, the driving cylinder 12 ejects or retracts through the driving rod 14. The driving rod 14 further acts on the wedge block 15 to slide along the first slide rail 17. At this time, the roller 18 rolls along the slope portion 22 under the action of the wedge block 15. During the rolling process of the roller 18, the bottom plate 2 is further acted on to realize lifting along the second slide rail 20. When weighing the material, the driving cylinder 12 controls the bottom plate 2 to descend along the second slide rail 20 so that the tray 27 containing the material completely falls on the weighing device 31 to realize weighing. In this way, it can be ensured that all the weights of the materials are concentrated on the weighing device 31, avoiding weighing errors caused by the two ends of the overly long material lapping on the bottom plate 2. By controlling the lifting of the conveying unit through the lifting unit, it is not necessary to consider the length of the material during material weighing, thereby improving the applicability and weighing accuracy of the entire weighing conveyor;

[0040] In order to prevent the roller 18 from rolling off the wedge block 15, a limiting plate 21 is provided on each side of the wedge block 15 where the roller 18 is located. The roller 18 is restricted between the two limiting plates 21, improving the stability and directionality of the roller 18 when rolling on the slope portion 22;

[0041] In order to prevent the tray 27 from deviating from the receiving table 10 during travel, a guide plate 11 is vertically provided on one side of the frame plate 4 where the receiving table 10 is located. The tray 27 is restricted by the guide plate 11 to ensure movement along the conveyor belt 8;

[0042] In order to prevent the problem of slipping between the tray 27 and the conveyor belt 8, stoppers 24 are provided at equal intervals on the conveyor belt 8. The distance between two adjacent stoppers 24 can accommodate the width of the tray 27. In this way, when the tray 27 is conveyed, the tray 27 is placed between the two stoppers 24, and the conveying power is transmitted through the stoppers 24;

[0043] In order to prevent the weighing device 31 from moving on the load-bearing plate 29, arc-shaped braking members 30 are provided at the positions of the four feet of the weighing device 31 on the load-bearing plate 29. When placing the weighing device 31, the four legs are placed inside the braking members 30, and the entire weighing device 31 is fixed through the braking members 30;

[0044] In order to prevent the conveyor belt 8 from sagging excessively and causing the separation of the stopper 24 from the tray 27, the adjustment hole 26 is designed as a long hole. The tension of the conveyor belt 8 can be adjusted through the long hole, thereby ensuring the normal contact between the stopper 24 and the tray 27.

[0045] In use, first, the driving cylinder 12 drives the wedge block 15 to slide along the first slide rail 17. The wedge block 15 further acts on the roller 18 to raise the bottom plate 2 along the second slide rail 20. Then, the tray 27 is placed between the two stoppers 24 of the conveyor belt 8 and is placed on the receiving table 10. Then, the conveyor motor 9 drives the conveyor belt 8 to rotate to achieve the transfer of materials. When the materials move above the weighing device 31, the driving cylinder 12 controls the wedge block 15 to slide outwards to lower the entire conveying unit. At this time, the entire tray 27 will fall onto the weighing device 31, and the weighing of the materials is completed by the weighing device 31. Then, the driving cylinder 12 controls the wedge block 15 to raise the conveying unit again and separates the tray 27 from the weighing device 31 through the receiving table 10. Then, the weighed materials are transferred to the next working station through the conveyor motor 9 and the conveyor belt 8.

[0046] The above is only the preferred specific embodiment of the present invention, and does not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A weighing conveyor with a lifting mechanism, comprising a base (1), a conveying unit being arranged on the base (1), the conveying unit comprising a bottom plate (2), a through opening (3) being provided on the bottom plate (2), a weighing unit being arranged in the through opening (3) on the base (1), and a lifting unit for controlling the lifting of the conveying unit being arranged between the base (1) and the bottom plate (2), characterized in that: The lifting unit comprises a driving cylinder (12), the output end of the driving cylinder (12) is provided with a driving plate (13), both ends of the driving plate (13) are respectively connected to a driving rod (14), one end of the driving rod (14) is connected to a wedge block (15), a roller (18) is provided on the wedge block (15), the roller (18) is connected to one side of the bottom plate (2), a first sliding block (16) is provided on the side of the wedge block (15) close to the base (1), and a first sliding rail (17) is provided on the first sliding block (16); The lifting unit also includes a guiding mechanism for controlling the lifting of the conveying unit.

2. A weighing conveyor with a lifting mechanism according to claim 1, characterized in that: The guide mechanism comprises a plurality of second slide rails (20) vertically arranged on the base (1), the plurality of second slide rails (20) being distributed on both sides of the bottom plate (2), the second slide rails (20) being slidably matched with second sliders (19), and the second sliders (19) being respectively connected to both sides of the bottom plate (2).

3. A weighing conveyor with a lifting mechanism according to claim 1, characterized in that: The wedge block (15) is provided with a slope portion (22), the highest point of the slope portion (22) is provided with a plane portion (23), and the roller (18) moves on the slope portion (22) and the plane portion (23).

4. A weighing conveyor with a lifting mechanism according to claim 1, characterized in that: Limiting plates (21) are respectively provided on both sides of the wedge block (15), and the roller (18) is located between the two limiting plates (21).

5. The weighing conveyor with a lifting mechanism according to claim 1, characterized in that: The conveying unit further comprises a frame plate (4) symmetrically arranged on the bottom plate (2), a conveying shaft (5) is rotatably arranged between the frame plates (4), one end of the conveying shaft (5) is provided with a conveying motor (9), both ends of the conveying shaft (5) are provided with conveying gears (6), and the frame plates (4) are provided with a conveying belt (8) via the corresponding conveying gears (6).

6. A weighing conveyor with a lifting mechanism according to claim 5, characterized in that: A receiving platform (10) is horizontally arranged on the frame plate (4); the receiving platform (10) and the conveyor belt (8) are located at the same height; and a pallet (27) is overlapped on the receiving platform (10).

7. A weighing conveyor with a lifting mechanism according to claim 6, characterized in that: A guide plate (11) is provided on one side of the receiving platform (10).

8. The weighing conveyor with a lifting mechanism according to claim 5, characterized in that: Stoppers (24) are arranged at equal intervals on the conveyor belt (8), and the spacing between the stoppers (24) can accommodate a tray (27).

9. The weighing conveyor with a lifting mechanism according to claim 1, characterized in that: The weighing unit comprises a plurality of columns (28) arranged on a base (1), a load plate (29) being arranged at the top ends of the plurality of columns (28), and a weighing device (31) being arranged on the load plate (29).

Images