Cleaning device for belt weigher

Abstract

The utility model discloses a cleaning device for a belt weigher, which comprises a weighing belt weigher, the upper end of the weighing belt weigher is provided with a cleaning mechanism, the cleaning mechanism comprises a cleaning driving roller and a cleaning driven roller, and the cleaning driving roller is driven by a second driving motor; a cleaning belt is wound on the cleaning driving roller and the cleaning driven roller, brush strips are fixed to the outer surface of the cleaning belt at equal intervals, the cleaning driving roller and the cleaning driven roller are installed at the two ends of a cleaning rack, and the cleaning rack is connected with a lifting driving device. A connecting rod is vertically arranged on the lower side of the cleaning rack, and a hard scraping piece is fixedly installed on the connecting rod and located on the lower side of the weighing belt weigher. According to the utility model, hard materials adhered to the weighing belt can be scraped off, and the materials adhered to the weighing belt can be swept off through the brush strip, so that manual intervention is not needed, and the cleaning is relatively thorough.

Description

Technical Field

[0001] This utility model relates to a cleaning device for belt scales, belonging to the field of belt scale cleaning technology. Background Technology

[0002] Electronic belt scales, also known as through belt scales, quantitative feeders, DGP hanging belt scales, and other similar names, are a general term for all belt scales. Generally, a belt scale refers to a standalone weighing device installed on a long conveyor belt frame. It consists only of a weighing frame, sensors, and instruments, without a drive motor or other power unit. It only weighs and accumulates the material passing through the conveyor belt and does not control the material flow rate. Its advantages are low cost, simple installation, and minimal modification to existing equipment. Electronic belt scales are mainly used for conveying bulk solid materials and measuring the material during the conveying process. Commonly weighed materials include raw coal, limestone, clay, iron powder, and clinker. Therefore, electronic belt scales play an irreplaceable role in the weighing field.

[0003] During the use of belt scales, powder can adhere to the conveyor belt when weighing powdery materials, causing contamination when weighing the next type of powdery material and affecting weighing accuracy. Chinese utility model patent CN218035295U discloses a belt scale surface cleaning device. This device uses two C-shaped clamps with fastening screws to fix the device to the top or base of the belt scale. Controlling an electric telescopic rod pushes a connecting column downwards, which in turn moves a cleaning mechanism downwards, allowing long and short brush bristles to contact the conveyor belt. By controlling the belt scale's operation, the conveyor belt surface can be cleaned, reducing manual labor.

[0004] However, the above-mentioned patent has some inconveniences in practical application. On the one hand, some sticky powders will adhere to the surface of the belt and form a relatively hard solid, which is difficult to completely remove with just a brush and requires manual processing. On the other hand, the brush is fixed and it is difficult to push the material on the surface of the belt to the end of the belt scale and then sweep it off.

[0005] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] This invention addresses the shortcomings of the prior art by providing a cleaning device for belt scales. It can scrape off hard materials adhering to the weighing belt and sweep them off with brush strips, eliminating the need for manual intervention and achieving a more thorough cleaning.

[0007] To solve the above technical problems, the present invention adopts the following technical solution:

[0008] A cleaning device for a belt scale includes a weighing belt scale, with a cleaning mechanism at the upper end of the weighing belt scale. The cleaning mechanism includes a cleaning active roller and a cleaning passive roller, and the cleaning active roller is driven by a second drive motor.

[0009] Cleaning belts are wound around the cleaning active roller and the cleaning passive roller. Brush strips are fixed at equal intervals on the outer surface of the cleaning belt. The cleaning active roller and the cleaning passive roller are installed at both ends of the cleaning frame, which is connected to the lifting drive device.

[0010] A connecting rod is vertically installed on the lower side of the cleaning frame, and a hard scraper is fixedly installed on the connecting rod. The hard scraper is located on the lower side of the weighing belt scale.

[0011] Furthermore, the weighing belt scale includes a weighing active roller and a weighing passive roller, with a weighing belt wound between the weighing active roller and the weighing passive roller. The weighing active roller and the weighing passive roller are installed at both ends of the weighing frame. The weighing active roller is driven by a first drive motor. A support column is vertically provided at the lower end of the weighing frame, and a weighing sensor is fixed at the lower end of the support column. The weighing sensor is installed on the support frame.

[0012] Furthermore, each cleaning frame has two connecting rods at its lower end, and the hard scraper is installed between the two connecting rods.

[0013] Furthermore, a strip-shaped mounting groove is vertically opened at the lower end of the connecting rod, and a fixed shaft is horizontally installed in the mounting groove of the two opposite connecting rods, and the hard scraper is installed on the fixed shaft.

[0014] Furthermore, an impurity carrier box is installed on the upper surface of the support frame, and the impurity carrier box is located directly below the hard scraper.

[0015] Furthermore, the lifting drive device includes a lifting motor, the drive shaft of the lifting motor is fixedly connected to a screw, and the screw is threaded to both ends of the cleaning frame.

[0016] Furthermore, the lifting motor is fixedly installed on the top plate, and the top plate is fixed to the support frame by a vertical rod.

[0017] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0018] The cleaning mechanism has brush strips fixed at equal intervals on the outer surface of the belt. The cleaning active roller and the cleaning passive roller are installed at both ends of the cleaning frame, which is connected to the lifting drive device. A connecting rod is vertically provided on the lower side of the cleaning frame, and a hard scraper is fixedly installed on the connecting rod. When the cleaning mechanism is in the upper position, the hard scraper scrapes off the hard material adhering to the weighing belt. When the cleaning mechanism is in the lower position, the brush strips sweep off the material adhering to the weighing belt. No manual intervention is required, and the cleaning is relatively thorough.

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the cleaning mechanism of this utility model when it is in the lower position;

[0021] Figure 2 This is a schematic diagram of the cleaning mechanism of this utility model when it is in the upper position.

[0022] In the picture,

[0023] 1-Support frame, 2-Weighing frame, 3-Weighing active roller, 4-Weighing passive roller, 5-First drive motor, 6-Cleaning frame, 7-Cleaning active roller, 8-Cleaning passive roller, 9-Second drive motor, 10-Brush strip, 11-Top plate, 12-Lifting motor, 13-Support column, 14-Connecting rod, 15-Hard scraper, 16-Mounting groove, 17-Impurity carrier box, 18-Weighing sensor, 19-Screw. Detailed Implementation

[0024] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0025] like Figure 1-2 As shown, this utility model provides a cleaning device for a belt scale, including a weighing belt scale, and a cleaning mechanism is provided at the upper end of the weighing belt scale. The cleaning mechanism includes a cleaning active roller 7 and a cleaning passive roller 8, and the cleaning active roller 7 is driven by a second drive motor 9.

[0026] Cleaning belts are wound around the cleaning active roller 7 and the cleaning passive roller 8. Brush strips 10 are fixed at equal intervals on the outer surface of the cleaning belt. The cleaning active roller 7 and the cleaning passive roller 8 are installed at both ends of the cleaning frame 6. The cleaning frame 6 is connected to the lifting drive device. A connecting rod 14 is vertically provided on the lower side of the cleaning frame 6. A hard scraper 15 is fixedly installed on the connecting rod 14. The hard scraper 15 is located on the lower side of the weighing belt scale.

[0027] The weighing belt scale includes a weighing active roller 3 and a weighing passive roller 4. A weighing belt is wound between the weighing active roller 3 and the weighing passive roller 4. The weighing active roller 3 and the weighing passive roller 4 are installed at both ends of the weighing frame 2. The weighing active roller 3 is driven by a first drive motor 5. A support column 13 is vertically provided at the lower end of the weighing frame 2. A weighing sensor 18 is fixed at the lower end of the support column 13. The weighing sensor 18 is installed on the support frame 1.

[0028] When cleaning the weighing belt is required, the weighing belt is in motion, and the lifting drive device drives the cleaning mechanism to rise, thereby pulling the hard scraper 15 to adhere to the lower surface of the weighing belt. The hard scraper 15 scrapes off the hard material adhering to the weighing belt, such as... Figure 2 Then, the lifting drive device lowers the cleaning mechanism, causing the brush strip 10 to adhere to the upper surface of the weighing belt. Since the cleaning belt's conveying speed is faster than the weighing belt's speed, the weighing belt of the weighing belt scale can be stopped, or it can continue conveying. At this time, the brush strip 10 sweeps off the material adhering to the weighing belt. Figure 1 It requires no manual intervention and the cleaning is quite thorough.

[0029] Each cleaning frame 6 has two connecting rods 14 at its lower end, and the hard scraper 15 is installed between the two connecting rods 14.

[0030] The lower end of the connecting rod 14 has a vertically formed strip-shaped mounting groove 16. A fixed shaft is horizontally mounted in the mounting groove 16 of two opposite connecting rods 14, and the hard scraper 15 is mounted on the fixed shaft. The position of the fixed shaft in the mounting groove 16 is adjustable vertically.

[0031] An impurity carrier box 17 is installed on the upper surface of the support frame 1. The impurity carrier box 17 is located directly below the hard scraper 15 and is used to receive the material scraped off by the hard scraper 15.

[0032] The lifting drive device includes a lifting motor 12, the drive shaft of which is fixedly connected to a screw 19, and the screw 19 is threaded to both ends of the cleaning frame 6. The lifting motor 12 drives the screw 19 to rotate, thereby driving the cleaning mechanism to rise and fall.

[0033] The lifting motor 12 is fixedly installed on the top plate 11, and the top plate 11 is fixed to the support frame 1 by a vertical rod.

[0034] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A cleaning device for a belt scale, characterized by: The weighing belt scale includes a cleaning mechanism at its upper end. The cleaning mechanism includes a cleaning active roller (7) and a cleaning passive roller (8). The cleaning active roller (7) is driven by a second drive motor (9). Cleaning active roller (7) and cleaning passive roller (8) are wound with cleaning belts, and brush strips (10) are fixed at equal intervals on the outer surface of the cleaning belts. The cleaning active roller (7) and cleaning passive roller (8) are installed at both ends of the cleaning frame (6), which is connected to the lifting drive device. A connecting rod (14) is vertically provided on the lower side of the cleaning frame (6), and a hard scraper (15) is fixedly installed on the connecting rod (14). The hard scraper (15) is located on the lower side of the weighing belt scale.

2. A cleaning device for a belt scale as defined in claim 1, characterized in that The weighing belt scale includes a weighing active roller (3) and a weighing passive roller (4). A weighing belt is wound between the weighing active roller (3) and the weighing passive roller (4). The weighing active roller (3) and the weighing passive roller (4) are installed at both ends of the weighing frame (2). The weighing active roller (3) is driven by a first drive motor (5). A support column (13) is vertically provided at the lower end of the weighing frame (2). A weighing sensor (18) is fixed at the lower end of the support column (13). The weighing sensor (18) is installed on the support frame (1).

3. A cleaning device for a belt scale as defined in claim 1, characterized in that: Each cleaning frame (6) has two connecting rods (14) at its lower end, and the hard scraper (15) is installed between the two connecting rods (14).

4. A cleaning device for a belt scale as defined in claim 3, characterized in that: The lower end of the connecting rod (14) is vertically provided with a strip-shaped mounting groove (16), and a fixed shaft is horizontally installed in the mounting groove (16) of the two opposite connecting rods (14), and the hard scraper (15) is installed on the fixed shaft.

5. A cleaning device for a belt scale as defined in claim 2, wherein: An impurity carrier box (17) is installed on the upper surface of the support frame (1), and the impurity carrier box (17) is located directly below the hard scraper (15).

6. A cleaning device for a belt scale as defined in claim 1, wherein: The lifting drive device includes a lifting motor (12), the drive shaft of the lifting motor (12) is fixedly connected to a screw (19), and the screw (19) is threadedly engaged with both ends of the cleaning frame (6).

7. A cleaning device for a belt scale as defined in claim 6, characterized in that: The lifting motor (12) is fixedly installed on the top plate (11), and the top plate (11) is fixed on the support frame (1) by a vertical rod.

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