Automatic sampling device for belts

Abstract

The utility model belongs to sampling device technical field, and a kind of automatic sampling device of belt includes conveying belt conveyor, sample pallet, sampling box, sample storage box and reciprocating drive mechanism, sample storage box upside is open, sampling box upside and downside are open, sample pallet one end is arranged in the discharge end downside of conveying belt conveyor, sample pallet other end is arranged in the upside of sample storage box, sampling box is slidably arranged on sample pallet, reciprocating drive mechanism is connected and drives sampling box to slide between conveying belt conveyor and sample storage box.Reciprocating drive mechanism drives sampling box to slide on sample pallet, sampling box upside and downside are open, when reciprocating drive mechanism drives sampling box to slide to adjacent with conveying belt conveyor, receive the material falling from conveying belt conveyor, reciprocating drive mechanism drives sampling box to slide to extend the discharge side of sample pallet, the material in sampling box just all falls into the sample storage box arranged in the discharge side of sample pallet, simple structure, convenient sampling.

Description

Technical Field

[0001] An automatic belt sampling device belongs to the field of sampling device technology. Background Technology

[0002] As profits in the cement industry gradually decline, cost reduction and efficiency improvement have become essential measures for enterprise survival. Replacing manual labor with equipment is one of the main ways to reduce labor costs. Therefore, using automated sampling tools can not only reduce labor costs but also, to a certain extent, reduce sample data errors caused by manual sampling, thus significantly improving enterprise efficiency.

[0003] The following problems exist in the process of sampling materials transported by belt conveyors: 1. During the process of transporting materials by belt conveyors, the material travels at a high speed, making it difficult to obtain a comprehensive sample by manual sampling. Often, only the surface layer of material can be obtained, resulting in poor sample representativeness; 2. The high-speed operation of the belt conveyor poses a high risk of mechanical injury, increasing the operational danger for samplers; 3. Manual sampling requires a certain amount of labor costs, reducing the company's efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an automatic belt sampling device to replace manual sampling.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The automatic belt sampling device includes a conveyor belt, a sample tray, a sampling box, a storage box, and a reciprocating drive mechanism. The storage box has an opening on its upper side, and the sampling box has openings on both its upper and lower sides. One end of the sample tray is located on the lower side of the discharge end of the conveyor belt, and the other end of the sample tray is located on the upper side of the storage box. The sampling box is slidably mounted on the sample tray. The reciprocating drive mechanism is connected to and drives the sampling box to slide between the conveyor belt and the storage box.

[0006] Preferably, it also includes a fixing frame, with limiting bosses on both sides of the fixing frame, the sample tray is laterally mounted on the fixing frame, the sample tray has a rotating column, a reset device is provided between the column and the sample tray, the reset device keeps the column in a vertical state, and horizontal stops are provided on both sides of the sampling box, the width of the sampling box is smaller than the width of the sample tray.

[0007] Preferably, the reset device is a torsion spring, and the column is set on both sides of the sample tray by the torsion spring, which keeps the column in a vertical state.

[0008] Preferably, it also includes a rotating shaft, which is mounted on the sample tray and extends out of the sample tray. A torsion spring is sleeved on the rotating shaft, with one end of the torsion spring connected to the column and the other end connected to the sample tray.

[0009] Preferably, rollers are provided on the underside of the sample tray.

[0010] Preferably, the conveyor belt conveyor includes a frame, a conveyor belt, and a transmission drive mechanism, wherein the conveyor belt is mounted on the frame and connected to the transmission drive mechanism.

[0011] Preferably, the width of the sample tray is smaller than the width of the transport belt.

[0012] Compared with existing technologies, the beneficial effects of this technical solution are:

[0013] This invention features a sample tray mounted on the unloading side of a conveyor belt, with a sampling box positioned on top of the tray. A reciprocating drive mechanism drives the sampling box to slide on the tray. The sampling box has openings on both its upper and lower sides. When the sampling box slides to a position adjacent to the conveyor belt, it receives material falling from the conveyor belt. The reciprocating drive mechanism then drives the sampling box to slide out from the unloading side of the sample tray, allowing all the material in the sampling box to fall into a storage box located on the unloading side of the sample tray. The structure is simple and facilitates sampling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment 1 of the automatic belt sampling device of this utility model.

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0016] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0017] Figure 4 for Figure 3 Enlarged view of section B in the middle.

[0018] The components include: 1. Sample tray; 2. Sampling box; 3. Sample storage box; 4. Reciprocating drive mechanism; 5. Fixing frame; 6. Limiting boss; 7. Torsion spring; 8. Stop bar; 9. Roller; 10. Electrical control device; 11. Frame; 12. Drive wheel; 13. Driven wheel; 14. Driven shaft; 15. Transmission belt; 16. Transport belt; 17. Transmission drive mechanism; 18. Column; 19. Rotating shaft. Detailed Implementation

[0019] Figures 1-2 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-4 The present invention will be further described below.

[0020] Example 1:

[0021] Reference Figures 1-2The automatic belt sampling device includes a conveyor belt, a sample tray 1, a sampling box 2, a storage box 3, and a reciprocating drive mechanism 4. The sample tray 1 is located on the unloading side of the conveyor belt. The storage box 3 has an opening on its upper side and is located on the unloading side of the sample tray 1. The reciprocating drive mechanism 4 is located on the unloading side of the sample tray 1 and drives the sampling box 2 to slide on the sample tray 1. The sampling box 2 has openings on both its upper and lower sides.

[0022] Specifically, the conveyor belt conveyor includes a frame 11, a conveyor belt 16, and a transmission drive mechanism 17. In this embodiment, the transmission drive mechanism 17 is a motor, which is located on the lower side of the frame 11. The drive shaft is connected to the drive wheel 12, and the drive wheel 12 is connected to the driven wheel 13 located on the side of the frame 11 via a transmission belt 15, thereby driving the driven wheel 13 to rotate. The conveyor belt 16 is sleeved on the driven shafts 14 located at both ends of the frame 11. The driven shafts 14 are connected to the driven wheels 13, thereby driving the conveyor belt 16 to reciprocate. The material is transported by the conveyor belt 16 from the feeding side to the unloading side, and the material falls into the belt discharge chute from the unloading side.

[0023] This utility model is installed in the conveyor belt unloading chute. The sample tray 1 is fixed on the unloading side frame 11 of the conveyor belt 16. The sample tray 1 is a 300mm*850mm*3mm stainless steel plate. The sampling box 2 is a 200mm*200mm*200mm cube. It is slidably installed on the sample tray 1 through the reciprocating drive mechanism 4. The sampling box 2 is open at the top and bottom, without a lid or bottom, and fits tightly with the sample tray 1.

[0024] In this embodiment, the reciprocating drive mechanism 4 is a cylinder. The push rod is horizontally connected to the sampling box 2. The cylinder is located on the side of the sample tray 1 away from the frame 11, placed on the support frame, and connected to the electrical control device 10. The electrical control device 10 controls the movement mode and air supply source of the cylinder.

[0025] The electrical control device 10 consists of two parts: a time controller and a solenoid control valve. The time controller is used to control the frequency of automatic sampling, and the solenoid control valve is used to control the operating state of the cylinder. The solenoid valve is connected to the time controller and the cylinder respectively.

[0026] The sample storage box 3 is located on the unloading side of the sample tray 1. The sample storage box 3 is 400mm*500mm*400mm in size and has no lid opening on the top side. The side of the sample tray 1 on the unloading side extends beyond the sample storage box 3, so that the material in the sampling box 2 can fall completely into the sample storage box 3.

[0027] Work process:

[0028] First, the electrical control device 10 is set and the appropriate sampling frequency is adjusted. When the time controller reaches the preset time, the electromagnetic control valve is activated, and compressed air flows into the cylinder, which moves the sampling box 2 forward to the chute unloading area of ​​the conveyor belt 16. The material enters the sampling box 2. After 10 seconds, the electrical control device 10 is activated again, controlling the cylinder to move the sampling box 2 to the outside of the chute. When the sampling box 2 moves to the end of the sample tray 1, the sample will fall into the sample storage box 3, and the sampling is successful.

[0029] Workers can set the parameters of the electrical control device 10 in advance according to the sampling requirements of different materials. When the conveyor belt is running, the electrical control device 10 will control the sampling box 2 to extend into the chute to take out the sample and put it into the designated storage box 3 at regular intervals. The operation is simple.

[0030] Example 2:

[0031] Reference Figures 3-4 The difference between this embodiment and implementation 1 is that: after the sample tray 1 and the sampling box 2 slide a certain distance at the same time, the sample tray 1 stops sliding, the sampling box 2 continues to slide to receive the sample and then drives the sample back. During the return process, the sample tray 1 continues to slide a certain distance and then stops sliding. The sampling box 2 drives the sample to move until the sample falls into the storage box 3.

[0032] Specifically, the fixing frame 5 is set on the unloading side of the conveyor belt 16, and four rollers 9 are set on the lower side of the sample tray 1. Preferably, the fixing frame 5 has grooves or tracks that cooperate with the rollers 9 to ensure that the sample tray 1 moves back and forth in a straight line. On both sides of the sampling box 2, two horizontal stop bars 8 are set, and the direction of the stop bars 8 is perpendicular to the movement direction of the sampling box 2. The sample tray 1 is provided with a rotating shaft 19, and the setting direction of the rotating shaft 19 is perpendicular to the movement direction. The rotating shaft 19 extends out of the side of the sample tray 1, and the two ends of the rotating shaft 19 are connected to vertically set columns 18. The columns 18 are rotatably connected to the rotating shaft 19. A torsion spring 7 is sleeved on the rotating shaft 19. One end of the torsion spring 7 is fixedly connected to the column 18, and the other end is fixedly connected to the sample tray 1. When the sampling box 2 slides on the sample tray 1 through the reciprocating drive mechanism 4, it slides until the stop bar 8 contacts the column 18, thereby driving the sample tray 1 to slide together on the fixing frame 5.

[0033] In this embodiment, the model of the torsion spring 7 is selected according to the resistance of the sample tray 1 moving on the fixed frame 5. That is, the force of the stop rod 8 pushing the sample tray 1 to move on the upper plate surface of the fixed frame 5 is less than the initial force of the torsion spring 7 deformation. The stop rod 8 can drive the sample tray 1 to move on the fixed frame 5 through the column 18. Only when the sample tray 1 encounters an obstruction will the stop rod 8 push the column 18 down, thereby moving to the other side of the column 18.

[0034] The upper plate of the fixed frame 5 is symmetrically provided with limiting protrusions 6 on both sides. The line connecting the two limiting protrusions 6 on one side is parallel to the movement direction of the sample tray 1. The positions of the limiting protrusions 6 correspond to the unloading side of the conveyor belt 16 and the side of the sample storage box 3 near the conveyor belt 16, respectively. The reciprocating drive mechanism 4 drives the sampling box 2 to slide on the sample tray 1, thereby driving the sample tray 1 to slide on the upper plate of the fixed frame 5 until the sample tray 1 contacts the two limiting protrusions 6, blocking the sample tray 1. At this time, the stop bar 8 continues to move forward with the sampling box 2, and the column 18 is pushed down by the stop bar 8. After the stop bar 8 on the sampling box 2 passes the column 18, it continues to slide with the sampling box 2. The column 18 is torn by the stop bar 8. Spring 7 returns to the upright position. After the sampling box 2 takes the sample, it retracts under the drive of the reciprocating drive mechanism 4. The stop bar 8 encounters the column 18. At this time, since there is no obstruction in the movement direction of the sample tray 1, the force applied by the stop bar 8 to the column 18 is insufficient to push the column 18 to swing. It can only drive the column 18 to slide together. The column 18 then drives the sample tray 1 to slide together until the sample tray 1 contacts the other two limiting protrusions 6. At this time, the stop bar 8 continues to move backward with the sampling box 2. The stop bar 8 pushes the column 18. The stop bar 8 on the sampling box 2 passes the column 18 and continues to slide with the sampling box 2 until the sample in the sampling box 2 falls into the storage box 3. This process is repeated to achieve sampling.

[0035] When the stop bar 8 of sampling box 2 passes the column 18 to take a sample, sampling box 2 will not detach from sample tray 1. After sampling, sampling box 2 will drive sample tray 1 to retract synchronously through friction and stop bar 8. When the sample is sent to the storage box 3, sampling box 2 will at least detach from sample tray 1. However, when the reciprocating drive mechanism 4 drives sample tray 1 to move forward, there is no sample in sampling box 2. Therefore, sampling box 2 and sample tray 1 will overlap again when they advance to the limiting boss 6. This process will not affect sampling by sampling box 2.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. An automatic belt sampling device, characterized in that: The sample tray (1), sample box (2), sample storage box (3), and reciprocating drive mechanism (4) are included. The sample storage box (3) has an opening on the upper side, and the sample box (2) has openings on both the upper and lower sides. One end of the sample tray (1) is located below the discharge end of the conveyor belt, and the other end of the sample tray (1) is located on the upper side of the sample storage box (3). The sample box (2) is slidably mounted on the sample tray (1). The reciprocating drive mechanism (4) is connected to and drives the sample box (2) to slide between the conveyor belt and the sample storage box (3).

2. The automatic belt sampling device according to claim 1, characterized in that: It also includes a fixed frame (5), with limiting bosses (6) on both sides of the fixed frame (5), a sample tray (1) is laterally mounted on the fixed frame (5), a rotating column (18) is provided on the sample tray (1), a reset device is provided between the column (18) and the sample tray (1), the reset device keeps the column in a vertical state, and horizontal stops (8) are provided on both sides of the sampling box (2), the width of the sampling box (2) is smaller than the width of the sample tray (1).

3. The automatic belt sampling device according to claim 2, characterized in that: The reset device is a torsion spring (7). The column (18) is set on both sides of the sample tray (1) by the torsion spring (7). The torsion spring (7) keeps the column (18) in a vertical state.

4. The automatic belt sampling device according to claim 3, characterized in that: It also includes a rotating shaft (19), which is set on the sample tray (1) and extends out of the sample tray (1). A torsion spring (7) is sleeved on the rotating shaft (19), with one end of the torsion spring (7) connected to the column (18) and the other end connected to the sample tray (1).

5. The automatic belt sampling device according to claim 2, characterized in that: Rollers (9) are provided on the underside of the sample tray (1).

6. The automatic belt sampling device according to claim 1, characterized in that: The conveyor belt conveyor includes a frame (11), a conveyor belt (16) and a transmission drive mechanism (17). The conveyor belt (16) is mounted on the frame (11) and connected to the transmission drive mechanism (17).

7. The automatic belt sampling device according to claim 6, characterized in that: The width of the sample tray (1) is smaller than the width of the transport belt (16).

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