Weighing hopper for distributing machine special for track

Abstract

The utility model relates to the technical field of distributing machines, and provides a weighing hopper for a distributing machine special for a track, which comprises a hopper body, a weighing mechanism arranged on the hopper body, a discharging mechanism arranged at the bottom of the hopper body, and a movable frame arranged in the hopper body. The motor drives the lead screw to rotate, the connecting bent rod drives the movable frame to move downwards to extend into the hopper body, the scraper makes contact with the inner wall of the hopper body and moves downwards, materials remaining on the inner wall of the hopper body are scraped and cleaned, meanwhile, the vibrator is matched with the first spring to enable the scraper to vibrate, and the materials attached to the scraper are shaken off. Therefore, the effect of scraping off residual materials on the inner wall of the hopper body is achieved, the residual materials can be completely discharged conveniently, the hopper body cannot be damaged, the cleaning effect of the residual materials is effectively improved, and the service life of the hopper is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of material placing machines, in particular to a weighing hopper for a track-specific material placing machine. Background Art

[0002] The concrete placing boom is the terminal equipment for pumping concrete. Its function is to deliver the concrete pressed by the pump to the formwork of the component to be cast through the pipeline. The combined movement of the two-part rotary frame can cover all the distribution points within the distribution radius.

[0003] The known authorized patent with application number: CN202021970980.5 discloses a weighing hopper for a material distribution machine. Its background technology proposes the problem that "existing weighing hoppers generally have the problem of residual granular material, which can easily cause the actual weight of the material to deviate from the set value". To this end, the technical solution to this problem is "including a hopper body and a switch door, the two sides of the top of the hopper body extend outward to form a mounting plate, and a gravity sensor is installed between the bottom of the mounting plate and the material distribution machine frame. The switch door includes two relatively arranged door bodies, and the door body is installed at the discharge port of the hopper body. A cylinder is rotatably connected to the hopper body, and the end of the cylinder away from the telescopic rod is rotatably connected to the first connecting plate through a first rotating shaft. The first connecting plate is fixedly connected to one of the door bodies, a driving gear is fixed on one of the door bodies, and a driven gear is fixed on the other door body. The driving gear is meshed with the driven gear, and the gravity sensor and the cylinder are both connected to the PLC controller".

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned technical solution has the following problems: although it achieves the effect of shaking off the granular material remaining on the inner wall of the hopper body through the provided technical solution, when discharging the material, it can only drive the arc plate to knock on the hopper body once by opening the switch door, which may easily cause the residual material to be shaken off and cleaned incompletely, and the method of shaking off the material by knocking on the hopper body may easily cause damage to the hopper body or even deformation, thereby resulting in a reduction in the cleaning effect of the residual material and the service life of the hopper. Utility Model Content

[0005] The utility model provides a weighing hopper for a track-specific material placing machine, which solves the problem in the related art that the hopper body can only be knocked once, which easily causes residual materials to be shaken off and not cleaned thoroughly, and the hopper body is easily damaged or even deformed by knocking and cleaning.

[0006] The technical solution of the utility model is as follows: A weighing hopper for a track-specific material placing machine comprises: a hopper body, a weighing mechanism is provided on the hopper body, and a material discharging mechanism is provided at the bottom of the hopper body;

[0007] A movable frame is arranged in the hopper body, and the movable frame moves along the height direction of the hopper body through a lifting mechanism arranged on the hopper body;

[0008] A spring 1 fixedly connected to the four corners of the bottom of the hopper body;

[0009] A mounting frame fixedly connected to a bottom end of the spring;

[0010] Scrapers fixedly mounted on the four sides of the mounting frame surface and in contact with the inner wall of the hopper body;

[0011] and two vibrators symmetrically fixedly mounted on the top of the mounting frame;

[0012] The lifting mechanism includes a fixed frame symmetrically fixedly installed on both sides of the hopper body, a screw rod rotatably connected between the two sides of the inner wall of one fixed frame, a guide rod fixedly installed between the two sides of the inner wall of another fixed frame, a slider 1 threadedly connected to the surface of the screw rod, a slider 2 slidably connected to the surface of the guide rod, a connecting piece provided on the slider 2 and the slider 1 and connected to the movable frame, and a driving piece provided on the fixed frame;

[0013] The connecting member comprises a U-shaped connecting bent rod fixedly mounted on the top of the slider 1 and the slider 2, and one end of the two connecting bent rods are extended to the hopper body and the movable frame to be connected.

[0014] The driving member comprises a motor fixedly mounted on the top of a fixing frame, and the output end of the motor passes through the fixing frame and is connected to the lead screw.

[0015] Preferably, the weighing mechanism includes two groups of fixed blocks symmetrically arranged on both sides of the hopper body, a gravity sensor fixedly installed on the top of the fixed block, and a fixed ear plate fixedly connected to the top of the gravity sensor and connected to the hopper body.

[0016] Preferably, the discharging mechanism includes two baffles symmetrically hinged at the bottom of the hopper body, two sets of connecting rods symmetrically hinged on the opposite sides of the two baffles, hydraulic cylinders symmetrically fixedly installed on both sides of the hopper body through base blocks, and connecting blocks fixedly connected to the output ends of the hydraulic cylinders and hinged to the connecting rods.

[0017] Preferably, spring 2 is fixedly connected between the opposite surfaces at both ends of the two baffles, and sealing gaskets are fixedly installed on the opposite end surfaces of the two baffles.

[0018] The working principle and beneficial effects of the utility model are:

[0019] During discharging, the motor drives the lead screw to rotate, so that the slider 1 moves down along the lead screw, the slider 2 moves down along the guide rod, and the movable frame is driven downward through the connecting bent rod to extend into the hopper body, so that the scraper contacts the inner wall of the hopper body and moves downward, and the material remaining on the inner wall of the hopper body is scraped off and cleaned. At the same time, the vibrator cooperates with spring 1 to make the scraper vibrate, and the material attached to the scraper is shaken off to prevent the material from adhering to the scraper and remaining on the scraper. Therefore, the effect of scraping off the material remaining on the inner wall of the hopper body is achieved, which is convenient for completely discharging the residual material and avoiding incomplete discharge of the residual material. Without damaging the hopper body, the cleaning effect of the residual material and the service life of the hopper are effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 It is a partial three-dimensional structural schematic diagram of the hopper body of the utility model;

[0023] Figure 3 It is a partial three-dimensional structural schematic diagram of the movable frame of the utility model;

[0024] In the figure: 1. hopper body; 2. movable frame; 3. spring 1; 4. mounting frame; 5. scraper; 6. vibrator; 7. fixed frame; 8. screw rod; 9. guide rod; 10. slider 1; 11. slider 2; 12. connecting bent rod; 13. motor; 14. fixing block; 15. gravity sensor; 16. fixing ear plate; 17. baffle; 18. connecting rod; 19. hydraulic cylinder; 20. connecting block; 21. spring 2. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0026] See also Figure 1 - Figure 3 The utility model provides a weighing hopper for a track-specific material placing machine, comprising: a hopper body 1, a weighing mechanism is provided on the hopper body 1, and a discharging mechanism is provided at the bottom of the hopper body 1;

[0027] A movable frame 2 is arranged in the hopper body 1, and the movable frame 2 moves along the height direction of the hopper body 1 through a lifting mechanism arranged on the hopper body 1;

[0028] A spring 3 fixedly connected to the four corners of the bottom of the hopper body 1;

[0029] A mounting frame 4 fixedly connected to the bottom end of a spring 3;

[0030] A scraper 5 fixedly mounted on four sides of the mounting frame 4 and in contact with the inner wall of the hopper body 1;

[0031] and two vibrators 6 symmetrically fixedly mounted on the top of the mounting frame 4;

[0032] The lifting mechanism includes a fixing frame 7 symmetrically fixedly installed on both sides of the hopper body 1, a screw rod 8 rotatably connected between the two sides of the inner wall of one fixing frame 7, a guide rod 9 fixedly installed between the two sides of the inner wall of another fixing frame 7, a slider 10 threadedly connected to the surface of the screw rod 8, a slider 2 11 slidably connected to the surface of the guide rod 9, a connecting member provided on the slider 2 11 and the slider 1 10 and connected to the movable frame 2, and a driving member provided on the fixing frame 7;

[0033] The connecting member includes a U-shaped connecting curved rod 12 fixedly mounted on the top of the slider 10 and the slider 2 11 , and one end of the two connecting curved rods 12 extends to connect the hopper body 1 and the movable frame 2 .

[0034] The driving member includes a motor 13 fixedly mounted on the top of a fixing frame 7 , and an output end of the motor 13 passes through the fixing frame 7 and is connected to a lead screw 8 .

[0035] The technical solution provided by this embodiment is as follows: when in use, the material enters the hopper body 1, and the weight of the entered material is monitored by the weighing mechanism. When the material reaches the preset weight, the bottom of the hopper body 1 is opened for discharge through the discharging mechanism. While discharging, the motor 13 drives the screw rod 8 to rotate, so that the slider 10 moves down along the surface of the screw rod 8, and synchronously drives the slider 2 11 to move down along the surface of the guide rod 9, thereby driving the movable frame 2 to move down and extend into the hopper body 1 through the connecting bent rod 12, so that the scraper 5 contacts the inner wall of the hopper body 1 and moves down, and the material remaining on the inner wall of the hopper body 1 is scraped off and cleaned. At the same time, the vibrator 6 cooperates with the spring 3 to vibrate the scraper 5, and the material remaining on the scraper 5 is shaken off to prevent the material from being attached to the scraper 5. Therefore, the effect of scraping off the material remaining on the inner wall of the hopper body 1 is achieved, which is convenient for completely discharging the residual material and avoiding incomplete discharge of the residual material. Without damaging the hopper body 1, the cleaning effect of the residual material and the service life of the hopper are effectively improved.

[0036] Furthermore, the weighing mechanism includes two groups of fixed blocks 14 symmetrically arranged on both sides of the hopper body 1, a gravity sensor 15 fixedly installed on the top of the fixed block 14, and a fixed ear plate 16 fixedly connected to the top of the gravity sensor 15 and connected to the hopper body 1.

[0037] Specifically, by setting the fixing block 14, it is convenient to install the hopper body 1 on the feeder frame. When the material enters the hopper body 1, the gravity sensor 15 can detect the material in the hopper body 1. When the preset weight is reached, the material is discharged through the discharging mechanism, thereby achieving the purpose of weighing the material.

[0038] Furthermore, the discharge mechanism includes two baffles 17 symmetrically hinged at the bottom of the hopper body 1, two sets of connecting rods 18 symmetrically hinged on the opposite sides of the two baffles 17, a hydraulic cylinder 19 symmetrically fixedly installed on the two sides of the hopper body 1 through a base block, and a connecting block 20 fixedly connected to the output end of the hydraulic cylinder 19 and hinged to the connecting rod 18.

[0039] Specifically, when discharging materials, the hydraulic cylinder 19 drives the connecting block 20 to move downward, and applies a thrust to the two baffles 17 through the connecting rod 18, so that the two baffles 17 rotate away from each other and open, thereby achieving the purpose of opening the hopper body 1 to discharge materials, facilitating the complete discharge of materials and reducing material residues. When closing, the hydraulic cylinder 19 drives the connecting block 20 to move upward, and the connecting rod 18 pulls the two baffles 17 closed, so as to facilitate the blocking of the opening at the bottom of the hopper body 1. Embodiment 2

[0040] Based on the first embodiment, in this embodiment: a second spring 21 is fixedly connected between the opposite surfaces at both ends of the two baffles 17 , and a sealing gasket is fixedly installed on the opposite end surfaces of the two baffles 17 .

[0041] The technical solution provided in this embodiment is: by setting a spring 21, the closing tension of the two baffles 17 can be increased, so as to assist the two baffles 17 to close quickly and enable the two baffles 17 to fit tightly. By setting a sealing gasket, the sealing effect between the two baffles 17 can be improved to prevent material leakage.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A weighing hopper for a track-specific material placing machine, characterized in that: include: A hopper body (1), wherein a weighing mechanism is provided on the hopper body (1), and a discharge mechanism is provided at the bottom of the hopper body (1); A movable frame (2) is arranged in the hopper body (1), and the movable frame (2) moves along the height direction of the hopper body (1) through a lifting mechanism arranged on the hopper body (1); A spring (3) fixedly connected to the four corners of the bottom of the hopper body (1); A mounting frame (4) fixedly connected to the bottom end of spring one (3); A scraper (5) fixedly mounted on four sides of the surface of the mounting frame (4) and in contact with the inner wall of the hopper body (1); And two vibrators (6) are symmetrically fixedly mounted on the top of the mounting frame (4).

2. A weighing hopper for a track-specific material placing machine according to claim 1, characterized in that: The lifting mechanism comprises a fixing frame (7) symmetrically fixedly mounted on two side surfaces of the hopper body (1), a screw rod (8) rotatably connected between two sides of the inner wall of one fixing frame (7), a guide rod (9) fixedly mounted between two sides of the inner wall of another fixing frame (7), a slider (10) threadedly connected to the surface of the screw rod (8), a slider (11) slidably connected to the surface of the guide rod (9), a connecting member provided on the slider (11) and the slider (10) and connected to the movable frame (2), and a driving member provided on the fixing frame (7).

3. A weighing hopper for a track-specific material placing machine according to claim 2, characterized in that: The connecting member comprises a U-shaped connecting curved rod (12) fixedly mounted on the top of the slider 1 (10) and the slider 2 (11), one end of each of the two connecting curved rods (12) extending to connect to the hopper body (1) and the movable frame (2).

4. The weighing hopper for a track-specific material placing machine according to claim 2, characterized in that: The driving member comprises a motor (13) fixedly mounted on the top of a fixing frame (7), and an output end of the motor (13) passes through the fixing frame (7) and is connected to a screw rod (8).

5. The weighing hopper for a track-specific material placing machine according to claim 1, characterized in that: The weighing mechanism comprises two groups of fixed blocks (14) symmetrically arranged on two sides of the hopper body (1), a gravity sensor (15) fixedly mounted on the top of the fixed blocks (14), and a fixed ear plate (16) fixedly connected to the top of the gravity sensor (15) and connected to the hopper body (1).

6. The weighing hopper for a track-specific material placing machine according to claim 1, characterized in that: The discharging mechanism comprises two baffles (17) symmetrically hinged at the bottom of the hopper body (1), two groups of connecting rods (18) symmetrically hinged at opposite surfaces of the two baffles (17), a hydraulic cylinder (19) symmetrically fixedly mounted on two side surfaces of the hopper body (1) via a base block, and a connecting block (20) fixedly connected to the output end of the hydraulic cylinder (19) and hinged to the connecting rod (18).

7. A weighing hopper for a track-specific material placing machine according to claim 6, characterized in that: A second spring (21) is fixedly connected between the opposing surfaces at both ends of the two baffles (17), and a sealing gasket is fixedly installed on the opposing end surfaces of the two baffles (17).

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