Material height measuring mechanism

Abstract

The utility model relates to a material height measuring mechanism which is applied to the field of material processing and comprises a mounting frame arranged between a feeding conveying line and a discharging conveying line, a measuring frame is arranged on the mounting frame, a measuring rod is slidably connected to the measuring frame, and a fixing frame is arranged on one side of the mounting frame. The mounting frame is also provided with a driving unit for driving the fixing frame to move along the vertical direction, and the fixing frame is provided with a conversion unit for converting the moving distance of the fixing frame into the sliding distance of the measuring rod relative to the measuring frame; an image unit is arranged on the mounting frame and used for shooting position information of the measuring rod relative to the measuring frame and determining the height of the areca nuts of the feeding conveying line according to the position information. The areca nut height measuring device has the advantages that the moving distance of the fixing frame is converted into the sliding distance of the measuring rod relative to the measuring frame through the conversion unit, the position information of the measuring rod relative to the measuring frame is shot through the image unit, and the areca nut height of the feeding conveying line is determined according to the position information.

Description

Technical Field

[0001] This application relates to the field of material processing technology, and in particular to a material height measuring mechanism. Background Technology

[0002] Areca nut is the dried, mature seed of a palm tree. It can be taken internally or used externally and has a certain stickiness. If you choose to take it internally, you need to cut the areca nut into slices, boil it in water, and then take it. When used externally, it is often crushed together with other medicinal materials and then applied to the affected area.

[0003] During the areca nut slicing process, whole areca nuts are sequentially placed on the feeding conveyor line. A robotic arm clamps and transports the areca nuts on the feeding conveyor line to the cutting mechanism, which slices the areca nuts. Then, the robotic arm clamps the sliced ​​areca nuts to the top of the unloading conveyor line and opens the robotic arm to allow the areca nuts to fall onto the unloading conveyor line under the action of gravity.

[0004] During the above-mentioned areca nut slicing process, it is impossible to measure the height of the areca nuts, which may result in the slicing of areca nuts that do not meet the height requirements, leading to a low yield of finished areca nut products. Summary of the Invention

[0005] To address the issue of insufficient height measurement during areca nut processing, which may lead to the slicing of areca nuts with unacceptable heights and a low yield of finished areca nuts, this application provides a material height measuring mechanism. The mechanism comprises a mounting frame positioned between a feeding conveyor line and a discharging conveyor line. A measuring frame is mounted on the mounting frame, and a measuring rod is slidably connected to the measuring frame. A fixed frame is located on one side of the mounting frame. The mounting frame also includes a drive unit for driving the fixed frame to move vertically. The fixed frame has a conversion unit for converting the movement distance of the fixed frame into the sliding distance of the measuring rod relative to the measuring frame. An image unit is also mounted on the mounting frame to capture the position information of the measuring rod relative to the measuring frame and determine the areca nut height on the feeding conveyor line based on this position information.

[0006] In one specific implementation, the drive unit includes a telescopic cylinder mounted on a mounting bracket, and the mounting bracket is located at the output end of the telescopic cylinder.

[0007] In one specific implementation, the conversion unit includes a guide block disposed on a fixed frame, the guide block having an inclined guide surface on its surface facing the measuring rod, and one end of the measuring rod facing the inclined guide surface contacting the inclined guide surface.

[0008] In one specific implementation scheme, the end of the measuring rod facing the guide block is provided with a mounting shaft, the mounting shaft is provided with a mounting rod, and one end of the mounting rod is rotatably connected to a rolling sleeve that contacts the inclined guide surface.

[0009] In one specific implementation scheme, the mounting shaft has a mounting hole, the mounting rod passes through the mounting hole, and the end of the mounting rod away from the roller sleeve is threaded with a mounting nut, the mounting nut abutting against the mounting shaft at the end face facing the mounting shaft.

[0010] In one specific implementation, the outer edge of the mounting shaft is provided with a mounting flat, and the mounting nut abuts against the mounting flat on the end face of the mounting shaft.

[0011] In one specific implementation, a resilient reset element is provided between the mounting shaft and the measuring frame.

[0012] In one specific implementation, the elastic reset element includes a reset spring sleeved on the outer edge of the measuring rod, the reset spring pressing against the measuring frame and the mounting shaft.

[0013] In one specific implementation scheme, a first mounting groove is formed on the surface of the guide block facing the fixed frame, and a second mounting groove is formed on the surface of the guide block away from the fixed frame. A transition groove connects the first mounting groove and the second mounting groove. The guide block is provided with a mounting bolt that passes through the first mounting groove, the transition groove and the second mounting groove. The fixed frame is provided with a threaded groove that matches the mounting bolt. One end of the mounting bolt facing the fixed frame is threaded into the threaded groove.

[0014] In one specific implementation, the measuring frame has a measuring hole, the measuring rod is slidably connected to the inner edge of the measuring hole, and a bushing is provided between the measuring hole and the measuring rod.

[0015] In summary, this application has the following beneficial technical effects: When it is necessary to measure the height of areca nuts, the drive unit is activated to move the fixed frame vertically, pressing the areca nuts against the feeding conveyor line. The conversion unit converts the moving distance of the fixed frame into the sliding distance of the measuring rod relative to the measuring frame, and the image unit captures the position information of the measuring rod relative to the measuring frame. Based on the position information, the height of the areca nuts on the feeding conveyor line is determined. Only areca nuts that meet the size requirements are subjected to the subsequent slicing process according to the height, thereby improving the yield of areca nut slices. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0017] Figure 2 yes Figure 1 Enlarged diagram of point A in the middle.

[0018] Figure 3 This is a structural schematic diagram illustrating the first mounting slot in the embodiments of this application.

[0019] Reference numerals: 1. Mounting bracket; 2. Measuring bracket; 3. Measuring rod; 4. Fixing bracket; 5. Telescopic cylinder; 6. Guide block; 7. Inclined guide surface; 8. Mounting shaft; 9. Mounting rod; 10. Roller sleeve; 11. Mounting nut; 12. Mounting flat; 13. Return spring; 14. First mounting groove; 15. Transition groove; 16. Second mounting groove; 17. Bushing. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0021] This application discloses a material height measuring mechanism.

[0022] Reference Figure 1 and Figure 2 The material height measuring mechanism includes a mounting frame 1 set between the feeding conveyor line and the unloading conveyor line. A measuring frame 2 is mounted on the mounting frame 1. A measuring hole is opened on the measuring frame 2. A measuring rod 3 is slidably connected in the measuring hole. A bushing 17 is provided between the measuring hole and the measuring rod 3. The bushing 17 significantly reduces the coefficient of friction and reduces motion wear by isolating the measuring rod 3 from direct contact with the measuring hole. The smooth inner wall and low friction characteristics of the bushing 17 can ensure the stable sliding of the measuring rod 3, reduce errors caused by friction, and improve the accuracy of subsequent measurement of areca nut height.

[0023] Reference Figure 1 and Figure 2 A fixed frame 4 is provided on one side of the mounting frame 1. In this embodiment, the fixed frame 4 is arranged in a horizontal L-shape. The mounting frame 1 is also provided with a driving unit for driving the fixed frame 4 to move vertically. The fixed frame 4 is provided with a conversion unit for converting the moving distance of the fixed frame 4 into the sliding distance of the measuring rod 3 relative to the measuring frame 2. The mounting frame 1 is also provided with an image unit, which is used to capture the position information of the measuring rod 3 relative to the measuring frame 2 and determine the height of the areca nuts on the feeding conveyor line based on the position information. In this embodiment, the image unit includes an image acquisition unit and a data processing unit. The image acquisition unit can be an image acquisition device such as a camera or webcam. In this embodiment, a camera is used. The camera captures image information of the extension length of the measuring rod 3 relative to the measuring frame 2 and transmits the image information to the data processing unit. Since the height of the areca nut is related to the extension length of the measuring rod 3 relative to the measuring frame 2, that is, the extension of the measuring rod 3 relative to the measuring frame 2 is related to the downward pressing distance of the fixed frame 4, and the fixed frame 4 will return to the initial state after each extension and retraction, the height of the areca nut can be obtained by subtracting the downward pressing distance of the fixed frame 4 from the distance from the fixed frame 4 to the feeding conveyor line in the initial state.

[0024] Reference Figure 1 and Figure 2The drive unit includes a telescopic cylinder 5 mounted on the mounting frame 1, and a fixed frame 4 mounted on the output end of the telescopic cylinder 5. The conversion unit includes a guide block 6 mounted on the fixed frame 4, and an inclined guide surface 7 is provided on the surface of the guide block 6 facing the measuring rod 3. One end of the measuring rod 3 facing the inclined guide surface 7 is in contact with the inclined guide surface 7. A vision inspection system of the prior art is provided on the feeding conveyor line.

[0025] Therefore, when the areca nut is conveyed by the feeding conveyor line to the area below the fixed frame 4, the vision inspection system detects the areca nut, activates the telescopic cylinder 5, and drives the fixed frame 4 at the output end of the telescopic cylinder 5 to extend and press the areca nut against the feeding conveyor line. During the movement of the fixed frame 4, the guide block 6 moves, so that the inclined guide surface 7 contacts the measuring rod 3 during the movement, pushing the end of the measuring rod 3 away from the guide block 6 to extend out of the measuring frame 2. The camera collects image information of the extension length of the measuring rod 3 relative to the measuring frame 2, and transmits the image information to the data processing unit. Since the height of the areca nut is related to the extension length of the measuring rod 3 relative to the measuring frame 2, the height of the areca nut is calculated by the data processing unit. Then, the robot arm transports the areca nut that meets the height to the cutting mechanism for subsequent slicing operations.

[0026] Reference Figure 1 and Figure 2 The outer edge of the measuring rod 3 has a limiting flat section to reduce the possibility of rotation during the movement of the measuring rod 3. A mounting shaft 8 is fixedly connected to the end of the measuring rod 3 facing the guide block 6. A mounting rod 9 is mounted on the mounting shaft 8, and one end of the mounting rod 9 is rotatably connected to a roller sleeve 10 that contacts the inclined guide surface 7. A mounting hole is provided on the mounting shaft 8, through which the mounting rod 9 passes. A mounting nut 11 is threadedly connected to the end of the mounting rod 9 away from the roller sleeve 10. A mounting flat section 12 is provided on the outer edge of the mounting shaft 8, and the end face of the mounting nut 11 facing the mounting shaft 8 abuts against the mounting flat section 12.

[0027] Therefore, during the process of the guide block 6 pushing the measuring rod 3 to move, the rolling friction between the inclined guide surface 7 and the roller sleeve 10 is used. During rolling friction, the contact between the roller sleeve 10 and the inclined guide surface 7 is a point contact or line contact, with a small contact area and relatively small pressure per unit area, resulting in relatively small wear. At the same time, the roller sleeve 10 effectively transmits the movement and power of the guide block 6 to the measuring rod 3, enabling the measuring rod 3 to move in the expected direction and speed. The small frictional resistance and wear can ensure that the measuring rod 3 is less affected by external forces during movement, improving the movement accuracy of the measuring rod 3, thereby further improving the accuracy of areca nut height detection.

[0028] Reference Figure 1 and Figure 2An elastic reset component is provided between the mounting shaft 8 and the measuring frame 2. The elastic reset component includes a reset spring 13 sleeved on the outer edge of the measuring rod 3. The reset spring 13 is pressed between the measuring frame 2 and the mounting shaft 8. The reset spring 13 has an elastic compression amount, which facilitates the automatic reset of the measuring rod 3 when the force of the guide block 6 is lost.

[0029] Reference Figure 2 and Figure 3 The guide block 6 has a first mounting groove 14 on its surface facing the fixed frame 4, and a second mounting groove 16 on its surface away from the fixed frame 4. A transition groove 15 connects the first mounting groove 14 and the second mounting groove 16. A mounting bolt is provided on the guide block 6, passing through the first mounting groove 14, the transition groove 15, and the second mounting groove 16. The fixed frame 4 has a threaded groove matching the size of the mounting bolt, and one end of the mounting bolt facing the fixed frame 4 is threaded into the threaded groove. Therefore, the operator can bolt the mounting block to the fixed frame 4. The first mounting groove 14 and the second mounting groove 16 allow for double-ended installation of the guide block 6, making installation convenient. Furthermore, the inclined guide surface 7 can be adapted to the actual material conditions.

[0030] The implementation principle of this application embodiment is as follows: When it is necessary to measure the height of areca nuts, the telescopic cylinder 5 is activated, which drives the fixed frame 4 at the output end of the telescopic cylinder 5 to extend and press the areca nuts against the feeding conveyor line. During the movement of the fixed frame 4, the guide block 6 is moved, so that the inclined guide surface 7 contacts the measuring rod 3 during the movement, pushing the end of the measuring rod 3 away from the guide block 6 to extend out of the measuring frame 2. The camera collects image information of the extension length of the measuring rod 3 relative to the measuring frame 2, and transmits the image information to the data processing unit. Since the height of the areca nuts is related to the extension length of the measuring rod 3 relative to the measuring frame 2, the height of the areca nuts is calculated by the data processing unit. Based on the height of the areca nuts, only the areca nuts that meet the size requirements are subjected to the subsequent slicing process, thereby improving the yield of areca nut slices.

[0031] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A material height measuring mechanism, characterized in that: The system includes a mounting frame (1) positioned between the loading and unloading conveyors. The mounting frame (1) is equipped with a measuring frame (2), and a measuring rod (3) is slidably connected to the measuring frame (2). A fixing frame (4) is provided on one side of the mounting frame (1). The mounting frame (1) is also equipped with a driving unit for driving the fixing frame (4) to move vertically. The fixing frame (4) is equipped with a conversion unit for converting the moving distance of the fixing frame (4) into the sliding distance of the measuring rod (3) relative to the measuring frame (2). The mounting frame (1) is equipped with an image unit for capturing the position information of the measuring rod (3) relative to the measuring frame (2) and determining the height of the areca nuts on the loading conveyor based on the position information.

2. The material height measuring mechanism according to claim 1, characterized by: The drive unit includes a telescopic cylinder (5) mounted on a mounting bracket (1), and the fixing bracket (4) is mounted on the output end of the telescopic cylinder (5).

3. The material height measuring mechanism according to claim 1, characterized by: The conversion unit includes a guide block (6) set on a fixed frame (4). The guide block (6) has an inclined guide surface (7) on its surface facing the measuring rod (3). One end of the measuring rod (3) facing the inclined guide surface (7) is in contact with the inclined guide surface (7).

4. The material height measuring mechanism according to claim 1, characterized by: The measuring rod (3) has a mounting shaft (8) at one end facing the guide block (6), and a mounting rod (9) is provided on the mounting shaft (8). One end of the mounting rod (9) is rotatably connected to a roller sleeve (10) that contacts the inclined guide surface (7).

5. The material height measuring mechanism according to claim 4, characterized by: The mounting shaft (8) has a mounting hole, the mounting rod (9) passes through the mounting hole, and the end of the mounting rod (9) away from the roller sleeve (10) is threaded with a mounting nut (11). The end face of the mounting nut (11) facing the mounting shaft (8) abuts against the mounting shaft (8).

6. The material height measuring mechanism according to claim 5, characterized by: The outer edge of the mounting shaft (8) is provided with a mounting flat (12), and the end face of the mounting nut (11) facing the mounting shaft (8) abuts against the mounting flat (12).

7. The material height measuring mechanism according to claim 4, characterized by: An elastic reset element is provided between the mounting shaft (8) and the measuring frame (2).

8. The material height measuring mechanism according to claim 7, characterized by: The elastic reset component includes a reset spring (13) sleeved on the outer edge of the measuring rod (3), and the reset spring (13) abuts against the measuring frame (2) and the mounting shaft (8).

9. The material height measuring mechanism according to claim 3, characterized by: The guide block (6) has a first mounting groove (14) on the surface facing the fixed frame (4), and a second mounting groove (16) on the surface away from the fixed frame (4). A transition groove (15) connects the first mounting groove (14) and the second mounting groove (16). The guide block (6) is provided with mounting bolts that pass through the first mounting groove (14), the transition groove (15), and the second mounting groove (16). The fixed frame (4) is provided with a threaded groove that matches the mounting bolt. One end of the mounting bolt facing the fixed frame (4) is threaded into the threaded groove.

10. The material height measuring mechanism according to claim 1, characterized by: The measuring frame (2) has a measuring hole, and the measuring rod (3) is slidably connected to the inner edge of the measuring hole. A bushing (17) is provided between the measuring hole and the measuring rod (3).

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