Threshing and redrying online total cross-section automatic leaf sampling device

Abstract

A threshing and redrying online total-section automatic leaf sampling device comprises a leaf assembly line, the section of a conveying belt of the leaf assembly line is in an arc shape, a sampling frame is fixed to a rack of the leaf assembly line, a sampling motor is fixed to the sampling frame, a rotating shaft is fixed to an output shaft of the sampling motor, and the rotating shaft is rotationally connected to the sampling frame. The rotating shaft is located in the middle above the conveying belt, the axis of the rotating shaft is parallel to the running direction of the conveying belt, and the rotating shaft fixes the scraper. Compared with the prior art, the automatic sampling device has the technical effects that the automatic sampling device is provided with the scraping plate, online automatic sampling on one section of a production line can be completed, and the sampling conveyor belt and the weight sensor are simultaneously controlled through the PLC, so that accurate sampling is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco leaf threshing and redrying, and particularly relates to an online automatic sampling device for the entire cross-section of a leaf structure during threshing and redrying. Background Art

[0002] According to the quality inspection requirements of leaf threshing and redrying enterprises in the tobacco industry, the leaf structure of the tobacco leaves before and after the leaf redrying process is inspected every 2 hours. Usually, 3000±300G of tobacco leaves are sampled for laboratory physical testing by manually controlling the reverse rotation of the conveyor belt.

[0003] During sampling, tobacco leaf samples are required to be sampled from a complete cross-section of the production line. The current sampling method of controlling the reverse rotation of the conveyor belt will cause multiple layers of tobacco leaves to overlap, resulting in poor sampling representativeness and failure to truly reflect the production quality status. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to design an online full-section automatic leaf sampling device for beating and re-drying leaves, which can complete online automatic sampling on a section of a production line.

[0005] The technical solution of the utility model is specifically as follows:

[0006] The invention discloses an online full-section automatic leaf sampling device for beating and re-baking leaves, comprising a leaf production line, a conveyor belt of the leaf production line having an arc-shaped cross-section, a sampling rack fixed on the frame of the leaf production line, a sampling motor fixed on the sampling rack, an output shaft of the sampling motor fixed on a rotating shaft, the rotating shaft being rotatably connected to the sampling rack, the rotating shaft being located in the middle above the conveyor belt, and its axis being parallel to the running direction of the conveyor belt, the rotating shaft being fixed on a scraper; a sampling conveyor belt parallel to the conveyor belt is provided on the side of the production line, the sampling conveyor belt is lower than the conveyor belt, a sampling container is provided below the end thereof, a slide is provided between the end of the sampling conveyor belt and the sampling container, the sampling container is provided on a measuring table, a weight sensor is provided on the upper portion of the measuring table, the weight sensor is electrically connected to a PLC, and the PLC is electrically connected to the sampling conveyor belt.

[0007] A guide inclined plate is provided between the conveyor belt and the sampling conveyor belt.

[0008] A baffle is provided on the side of the sampling conveyor belt away from the conveyor belt.

[0009] Compared with the prior art, the technical effect of the present invention is that the present invention is provided with a scraper, which can complete online automatic sampling on a section of the production line, and simultaneously control the sampling conveyor belt and the weight sensor through PLC to achieve precise sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the present utility model.

[0011] Figure 2 Schematic diagram of the scraper's working status.

[0012] Figure 3 It is a schematic diagram of the cooperation between the sampling conveyor belt and the sampler. DETAILED DESCRIPTION

[0013] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments thereof.

[0014] like Figure 1-3 A leaf beating and re-baking online full-section automatic leaf sampling device includes a leaf production line 10, and the cross-section of the conveyor belt 11 of the leaf production line 10 is arc-shaped.

[0015] A sampling rack 20 is fixed on the frame of the leaf assembly line 10, and a sampling motor 21 is fixed on the sampling rack 20. The output shaft of the sampling motor 21 is fixed to a rotating shaft 22, and the rotating shaft 22 is rotatably connected to the sampling rack 20. The rotating shaft 22 is located in the middle above the conveyor belt 11, and its axis is parallel to the running direction of the conveyor belt 11. The rotating shaft 22 fixes a scraper 23.

[0016] A sampling conveyor belt 30 is provided on the side of the assembly line 10. The sampling conveyor belt 30 is lower than the conveyor belt 11. A sampling container 32 is provided below the end thereof. A slide 31 is provided between the end of the sampling conveyor belt 30 and the sampling container 32. The sampling container 32 is set on a measuring table 34. A weight sensor (not shown in the figure) is provided on the upper part of the measuring table 34. The weight sensor is electrically connected to the PLC (not shown in the figure), and the PLC is electrically connected to the sampling conveyor belt 30.

[0017] In order to facilitate the transfer, a guide inclined plate 12 is provided between the conveyor belt 11 and the sampling conveyor belt 30 .

[0018] In order to prevent the sample from spilling out, a baffle 33 is provided on the side of the sampling conveyor belt 30 away from the conveyor belt 11 .

[0019] Its working principle is:

[0020] When not sampling, Figure 2 The scraper 23 is located on the outside of the conveyor belt 11 (away from the sampling conveyor belt 30 ), and the leaf assembly line 10 is conveyed normally.

[0021] When sampling, if Figure 1-3 The sampling motor 21 drives the rotating shaft 22 to rotate, and the rotating shaft 22 drives the scraper 23 to rotate counterclockwise for one circle, and the scraper 23 resets. During the rotation of the scraper 23, the leaves on a cross section of the conveyor belt 11 (similar to a column) are pushed out and enter the sampling conveyor belt 30 through the guide inclined plate 12. At this time, the weight of the leaves (that is, the sample) on the conveyor belt 30 needs to be slightly greater than 3300g.

[0022] At the same time, the PLC sends a signal to the conveyor belt 30, and the conveyor belt 30 rotates, causing the sample to gradually flow into the sampling container 32. When the weight sensor measures that the weight in the sampling container 32 meets the target, the PLC sends a signal to the conveyor belt 30, and the conveyor belt 30 stops, and the sampling is completed.

[0023] For other contents, please refer to the prior art.

[0024] The above description is only the preferred embodiment of the present invention. It should be pointed out that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be regarded as the scope of protection of the present invention.

Claims

1. An online full-section automatic leaf sampling device for beating and re-baking leaves, comprising a leaf production line (10), wherein the cross section of the conveyor belt (11) of the leaf production line (10) is arc-shaped, and characterized in that: A sampling rack (20) is fixed on the frame of the blade assembly line (10), the sampling rack (20) is fixed to the sampling motor (21), the output shaft of the sampling motor (21) is fixed to the rotating shaft (22), the rotating shaft (22) is rotatably connected to the sampling rack (20), the rotating shaft (22) is located in the middle above the conveyor belt (11), and its axis is parallel to the running direction of the conveyor belt (11), and the rotating shaft (22) is fixed to the scraper (23); A sampling conveyor belt (30) is provided on the side of the assembly line (10) and is parallel to the assembly line (10). The sampling conveyor belt (30) is lower than the conveyor belt (11). A sampling container (32) is provided below the end of the sampling conveyor belt (30). A slideway (31) is provided between the end of the sampling conveyor belt (30) and the sampling container (32). The sampling container (32) is provided on a measuring table (34). A weight sensor is provided on the upper portion of the measuring table (34). The weight sensor is electrically connected to a PLC, and the PLC is electrically connected to the sampling conveyor belt (30).

2. The on-line full-section automatic leaf sampling device for beating and redrying leaves according to claim 1, characterized in that: A guide inclined plate (12) is provided between the conveyor belt (11) and the sampling conveyor belt (30).

3. The on-line full-section automatic leaf sampling device for beating and redrying leaves according to claim 2, characterized in that: A baffle (33) is provided on the side of the sampling conveyor belt (30) away from the conveyor belt (11).

Images