A raw material conveying device for grain processing

Abstract

The utility model relates to the technical field of grain conveying, disclose a raw material conveying device for grain processing, including frame and conveyer belt, both sides of frame are longitudinally rotatable installation has the guide roller, the outer ring of both sides guide roller drive sleeve is placed, the frame surface of one side guide roller front end is installed with the step motor of guide roller drive connection, the inside of the frame below the upper layer conveyer belt is longitudinally provided with the supporting roller, the inside surface of the frame of supporting roller both ends is all set up with the sliding slot. The utility model technical scheme is provided with supporting roller in the bottom of conveyer belt and plays the supporting effect to conveyer belt, the pressure that conveyer belt acts to supporting roller can be detected by pressure sensor, the pressure size is also different when conveying the grain amount is different, and then judge the amount of conveying grain, make the conveyer belt speed increase when the conveying capacity is big, conversely make the conveyer belt speed reduce or stall, and the conveying speed requirement when the grain conveying capacity is big and the power saving demand when the grain conveying capacity is small are taken into account.

Description

Technical Field

[0001] This utility model relates to the field of grain conveying technology, specifically to a raw material conveying device for grain processing. Background Technology

[0002] "Grains" encompasses a broad range, including rice, wheat, millet, soybeans, and other miscellaneous grains. Grains, including rice, wheat, millet, and soybeans, are mainly plant seeds and fruits, and are the traditional staple food of many Asian people. Grain processing is the process of turning grains into various foods or raw materials. The main steps include cleaning and removing impurities, hulling, milling, and grading. Through processing, the taste and digestibility of grains can be improved, and basic raw materials such as flour, rice, and corn flour can be made. Further processing can produce foods such as bread, noodles, and pastries to meet different dietary needs. During processing, conveying devices are needed to transport the grain raw materials.

[0003] During transport, because the grain undergoes pre-processing such as screening, it may fall intermittently onto the conveying device. When a large amount of grain needs to be transported in a short period, it may be impossible to transport it in time. Conversely, when the amount of grain to be transported decreases, the conveying speed of the device remains constant, resulting in wasted energy. Therefore, we propose a raw material conveying device for grain processing. Utility Model Content

[0004] The purpose of this utility model is to provide a raw material conveying device for grain processing. By setting support rollers at the bottom of the conveyor belt to support the conveyor belt, the pressure exerted by the conveyor belt on the support rollers can be detected by a pressure sensor. The pressure varies with the amount of grain being conveyed, thereby determining the amount of grain being conveyed. When the amount of grain being conveyed is large, the speed of the conveyor belt is increased, and vice versa, the speed of the conveyor belt is reduced or stopped. This takes into account both the conveying speed requirements when the amount of grain being conveyed is large and the energy-saving requirements when the amount of grain being conveyed is small, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a raw material conveying device for grain processing, comprising a frame and a conveyor belt. Guide rollers are rotatably mounted longitudinally on both sides of the frame. The conveyor belt is driven and sleeved on the outer ring of the guide rollers on both sides. A stepper motor connected to the guide roller is mounted on the frame surface at the front end of one of the guide rollers. A support roller is longitudinally arranged on the inner side of the frame below the upper conveyor belt. Slide grooves are formed on the inner side surfaces of the frame at both ends of the support roller. A first pressure sensor is fixedly installed inside the slide groove. A slider is slidably placed in the slide groove above the first pressure sensor. The slider is supported above the first pressure sensor. The two ends of the support roller are rotatably connected to the slider through bearings. The upper surface of the support roller abuts against the bottom surface of the upper conveyor belt.

[0006] By adopting the above technical solution, the grain is placed on the surface of the conveyor belt and transported. During the transport process, the first pressure sensor detects the pressure on the support roller. When the amount of grain on the conveyor belt surface is different, the pressure value of the first pressure sensor on the support roller is also different. The amount of grain conveyed can be determined, and the speed of the stepper motor can be dynamically adjusted to meet the conveying speed requirements when the amount of grain conveyed is large, and to save power when the amount of grain conveyed is small.

[0007] Optionally, side guards are fixed around both outer rings of the conveyor belt, and the side guards can bend and deform with the conveyor belt.

[0008] By adopting the above technical solution, grain leakage from the side can be prevented during grain conveying.

[0009] Optionally, a hopper is provided above one end of the frame, and side plates are fixed on both sides of the hopper. Support rods are provided between the side plates and the frame to support the hopper.

[0010] By adopting the above technical solution, the hopper can be used to make the grain fall more effectively onto the surface of the conveyor belt.

[0011] Optionally, a second pressure sensor is installed at the bottom of the support rod, and the bottom of the second pressure sensor is fixed to the surface of the frame.

[0012] By adopting the above technical solution, the change in force on the hopper can be detected by the second pressure sensor, which can determine when to feed grain onto the surface of the conveyor belt.

[0013] Optionally, the length of the hopper is less than the distance between the two side guards, and the bottom of the hopper is placed between the two side guards.

[0014] By adopting the above technical solution, it is ensured that the hopper can feed grain onto the conveyor belt between the side bars.

[0015] Optionally, the frame is vertically fixed with legs at each of its four bottom corners, and multiple legs are provided.

[0016] By adopting the above technical solution, the frame can be stably supported by the support legs.

[0017] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0018] 1. The technical solution of this application provides a support roller at the bottom of the conveyor belt to support the conveyor belt. The pressure exerted by the conveyor belt on the support roller can be detected by a pressure sensor. The pressure varies with the amount of grain being conveyed, thereby determining the amount of grain being conveyed. When the amount of grain being conveyed is large, the speed of the conveyor belt is increased, and vice versa, the speed of the conveyor belt is reduced or stopped. This takes into account both the conveying speed requirements when the amount of grain being conveyed is large and the energy-saving requirements when the amount of grain being conveyed is small.

[0019] 2. The technical solution of this application, by setting up a hopper and side baffles around the outer rings on both sides of the conveyor belt, allows the grain to be placed and splashed to the outside, and then smoothly transported on the surface of the conveyor belt.

[0020] 3. The technical solution of this application installs a second pressure sensor at the bottom of the support rod supporting the hopper. When the conveyor belt stops, if grain falls onto the surface of the conveyor belt, it can be quickly determined, avoiding the situation where the pressure change cannot be detected by the first pressure sensor before the grain has moved to the support roller position, thus preventing the equipment from being started in time. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the raw material conveying device for grain processing according to this utility model;

[0023] Figure 2 This is a detailed structural diagram showing the positions of the sliders at both ends of the support rollers of the raw material conveying device for grain processing according to this utility model.

[0024] In the diagram: 1. Frame; 11. Slide groove; 111. Slider; 112. First pressure sensor; 12. Stepper motor; 13. Support leg; 2. Guide roller; 21. Conveyor belt; 211. Side guard; 3. Support roller; 4. Hopper; 41. Side plate; 411. Support rod; 412. Second pressure sensor. Detailed Implementation

[0025] Please see Figure 1-2 This utility model provides a technical solution: a raw material conveying device for grain processing, including a frame 1 and a conveyor belt 21. Guide rollers 2 are rotatably mounted longitudinally on both sides of the frame 1. The conveyor belt 21 is driven and sleeved on the outer ring of the guide rollers 2 on both sides. A stepper motor 12 connected to the guide roller 2 is installed on the surface of the frame 1 at the front end of one of the guide rollers 2. When the stepper motor 12 is started, it can drive the guide roller 2 and the conveyor belt 21 to rotate clockwise, which can convey grain to the right. The bottom four corners of the frame 1 are vertically fixed with support legs 13. Multiple support legs 13 are provided to support the frame 1. In addition, the overall length of the frame 1 and the conveyor belt 21 can be selected according to the requirements and is not limited to the length of the conveyor belt 21 in this application.

[0026] A support roller 3 is longitudinally arranged inside the frame 1 below the upper conveyor belt 21. Slide grooves 11 are formed on the inner surfaces of the frame 1 at both ends of the support roller 3. A first pressure sensor 112 is fixedly installed inside the lower part of the slide groove 11. A slider 111 is slidably placed in the slide groove 11 above the first pressure sensor 112. The slider 111 is at a certain distance from the top of the slide groove 11, and is supported above the first pressure sensor 112. The two ends of the support roller 3 are rotatably connected to the slider 111 via bearings. The upper surface of the support roller 3 abuts against the bottom surface of the upper conveyor belt 21. During use, the grain passes through the hopper 4. When the grain falls onto the surface of the conveyor belt 21, it exerts downward pressure on the conveyor belt 21 and the support roller 3. This causes the sliders 111 at both ends of the guide roller 2 to generate pressure changes on the first pressure sensor 112 below them, which are then detected. The amount of grain being conveyed can be determined by the pressure value. When the pressure is high, it is determined that the amount of grain being conveyed is relatively large, so the stepper motor 12 drives the conveyor belt 21 to rotate faster. Conversely, when the pressure data changes in real time, the stepper motor 12 drives the conveyor belt 21 to rotate slower. The rotation speed of the conveyor belt 21 is adjusted synchronously to adapt to the changes in pressure data.

[0027] Side guards 211 are fixed around the outer rings on both sides of the conveyor belt 21. The side guards 211 can bend and deform with the conveyor belt 21 to prevent grain from leaking from the surface of the conveyor belt 21 to the side during the transmission process.

[0028] A hopper 4 is also provided on one end of the frame 1. Side plates 41 are fixed on both sides of the hopper 4. Support rods 411 are used to support the hopper 4 between the side plates 41 and the frame 1. In addition, the length of the hopper 4 is less than the distance between the side guards 211 on both sides. The bottom of the hopper 4 is placed between the side guards 211 on both sides. Grains can fall smoothly onto the surface of the conveyor belt 21 between the side guards 211 through the hopper 4, avoiding falling to the outside.

[0029] When the conveyor belt 21 stops running and grain is added to the surface of the conveyor belt 21 through the hopper 4, the weight of the grain cannot be detected by the first pressure sensor 112 at the support roller 3 position. Therefore, the stepper motor 12 may not start in time. So, a second pressure sensor 412 is installed at the bottom of the support rod 411. The bottom of the second pressure sensor 412 is fixed to the surface of the frame 1. In use, when the conveyor belt 21 stops and grain falls onto the surface of the conveyor belt 21, it can be quickly identified and the stepper motor 12 can be started immediately to drive the conveyor belt 21 to rotate. This avoids the situation where the pressure change cannot be detected by the first pressure sensor 112 before the grain moves to the support roller 3 position, thus preventing the equipment from not starting in time.

[0030] In use, the lengths of frame 1 and conveyor belt 21 are selected to meet the requirements. Stepper motor 12, first pressure sensor 112, and second pressure sensor 412 are connected to the industrial control computer. Grain falls from hopper 4 onto the surface of conveyor belt 21. When grain passes through hopper 4, it creates a relative interaction with hopper 4. At this time, the second pressure sensor 412 immediately detects a change in its value, thus determining that grain has fallen onto the surface of conveyor belt 21. It then immediately starts stepper motor 12, driving guide roller 2 and conveyor belt 21 to rotate clockwise at a slightly higher speed. This prevents grain from accumulating on the surface of conveyor belt 21 and allows it to be conveyed to the right. When grain is conveyed on the surface of conveyor belt 21, it will affect the conveyor belt... The guide roller 21 and the support roller 3 generate downward pressure, causing the sliders 111 at both ends of the guide roller 2 to generate pressure changes against the first pressure sensor 112 below, which are detected. At this time, the amount of grain being conveyed can be determined by the pressure value. When the pressure is high, it is determined that the amount of grain being conveyed is relatively large, so the stepper motor 12 drives the conveyor belt 21 to rotate faster. Conversely, the stepper motor 12 drives the conveyor belt 21 to rotate slower. When the pressure data changes in real time, the rotation speed of the conveyor belt 21 is adjusted synchronously to adapt. When the pressure values ​​detected by the first pressure sensor 112 and the second pressure sensor 412 are both the values ​​when no load is applied, the stepper motor 12 is directly stopped to save power.

Claims

1. A raw material conveying device for grain processing, comprising a frame (1) and a conveyor belt (21), characterized in that: Guide rollers (2) are rotatably mounted on both sides of the frame (1) in the longitudinal direction. The transmission belt (21) is driven by the outer ring of the guide rollers (2) on both sides. A stepper motor (12) connected to the guide roller (2) is installed on the surface of the frame (1) at the front end of one of the guide rollers (2). A support roller (3) is longitudinally arranged on the inner side of the frame (1) below the upper conveyor belt (21). The inner surface of the frame (1) at both ends of the support roller (3) is provided with a groove (11). A first pressure sensor (112) is installed and fixed inside the groove (11). A slider (111) can be slidably placed in the groove (11) above the first pressure sensor (112). The slider (111) is supported above the first pressure sensor (112). The two ends of the support roller (3) are rotatably connected to the slider (111) through bearings. The upper surface of the support roller (3) abuts against the bottom surface of the upper conveyor belt (21).

2. The raw material conveying device for grain processing according to claim 1, characterized in that: Both sides of the conveyor belt (21) are fixed with side guards (211) around the outer ring. The side guards (211) can bend and deform with the conveyor belt (21).

3. The raw material conveying device for grain processing according to claim 2, characterized in that: A hopper (4) is provided above one end of the frame (1). Side plates (41) are fixed on both sides of the hopper (4). Support rods (411) are supported between the side plates (41) and the frame (1) to support the hopper (4).

4. The raw material conveying device for grain processing according to claim 3, characterized in that: A second pressure sensor (412) is installed at the bottom of the support rod (411), and the bottom of the second pressure sensor (412) is fixed to the surface of the frame (1).

5. The raw material conveying device for grain processing according to claim 3, characterized in that: The length of the hopper (4) is less than the distance between the two side guards (211), and the bottom of the hopper (4) is placed between the two side guards (211).

6. The raw material conveying device for grain processing according to claim 1, characterized in that: The frame (1) has four vertically fixed feet (13) at its bottom corners, and there are multiple feet (13).

Images