Semi-automatic roller conveying tobacco leaf purchasing line

Abstract

The utility model discloses a semi-automatic roller conveying tobacco leaf purchasing line, which is characterized in that a front transmission mechanism is provided with an information recording station and a manual quality inspection station, and the information recording station scans codes or senses and records tobacco frame tobacco grower information and correlates the information; the front conveying mechanism is in butt joint with the warehousing conveying mechanism through a conveying connection structure of the weighing mechanism, and a second reading instrument is arranged above the weighing mechanism. The tobacco frames subjected to manual quality inspection are conveyed to a weighing mechanism, a second reading instrument reads tobacco frame information, a weighing body synchronously weighs the net weight of the tobacco leaves, and the tobacco frame information and the net weight are recorded and associated. Compared with the prior art, a purchaser and a tobacco grower do not need to repeatedly move and carry tobacco leaves, excessive manual weighing is not needed, the tobacco leaf purchasing efficiency is improved, and the purchasing site is in order; and tobacco leaf related information is directly input into a computer and is convenient to store and display on a screen.

Description

Technical Field

[0001] The utility model relates to tobacco processing equipment, in particular to a semi-automatic roller conveyor for tobacco leaf purchasing line. Background Art

[0002] During tobacco purchasing, it is necessary to manually check the quality, then weigh it, record the coding and weight, and store it in the warehouse for caching.

[0003] Manually completing these multiple processes has low efficiency and is also prone to causing chaos with a large number of people at the purchasing site. Content of the Utility Model

[0004] The utility model aims to solve at least one of the above-mentioned technical problems, and provides a semi-automatic roller conveyor for tobacco leaf purchasing line, which improves the efficiency of tobacco leaf purchasing and facilitates the orderliness of the purchasing site.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A semi-automatic roller conveyor for tobacco leaf purchasing line is successively provided with a front conveyor mechanism, a weighing mechanism and a warehousing conveyor mechanism along the transmission direction of the tobacco frame. An information plate is arranged on the tobacco frame, and the tobacco frame information of the information plate includes a two-dimensional code and / or an RDIF tag;

[0007] The front conveyor mechanism is successively provided with an information recording station and a manual quality inspection station suitable for workers to check the quality of tobacco leaves in the tobacco frame along the transmission direction of the tobacco frame. The information recorder at the information recording station is suitable for recording the tobacco frame information and the tobacco farmer information, associating the tobacco frame information with the tobacco farmer information. A proximity switch is arranged at the information recording station, and a first reader and a start switch are arranged at the manual quality inspection station.

[0008] The weighing mechanism includes a weighing body and a bracket. The bracket is provided with a transmission connection structure. The front conveyor mechanism is connected to the warehousing conveyor mechanism through the transmission connection structure. A second reader is arranged above the weighing mechanism.

[0009] Among them, the front conveyor mechanism, the information recorder, the start switch, the second reader, the weighing body and the transmission connection structure are electrically connected to a central control PC. The central control PC is used to control the front conveyor mechanism to pause when the proximity switch detects the presence of the tobacco frame. The central control PC is used to control the front conveyor mechanism to transmit for a predetermined time when the information recorder completes information recording and association and the proximity switch detects.

[0010] The central control PC is used to control the front conveyor mechanism to pause when the first reader reads the tobacco frame information. The central control PC is used to control the front conveyor mechanism to transmit for a predetermined time when the start switch is pressed and the first reader reads the tobacco frame information.

[0011] When the central control PC reads the cigarette frame information by the second reader, it controls the transfer and connection structure to pause. When the central control PC reads the cigarette frame information by the second reader and the weighing body synchronously weighs the net weight, it records and associates the cigarette frame information and the net weight, and then controls the transfer and connection structure to transfer for a predetermined time when the second reader reads the cigarette frame information.

[0012] Compared with the prior art, the beneficial effects of the present application include: there is no need for the purchaser and the tobacco farmer to repeatedly carry the tobacco leaves, there is no need for too much manual recording of weighing, the tobacco leaf purchasing efficiency is improved, and it is convenient to keep the purchasing site in good order; the tobacco leaf related information is directly input into the computer, which is convenient for storage and screen display.

[0013] As an improvement of the above technical solution, the central control PC is electrically connected to a screen suitable for being placed in the hall, and the screen is suitable for displaying the coding information, tobacco farmer information, and tobacco leaf weight information of each cigarette frame.

[0014] As an improvement of the above technical solution, the front transfer mechanism is sequentially provided with an information acquisition station, a machine inspection station, and an artificial quality inspection station along the cigarette frame transfer direction. The machine inspection station is provided with an X-ray imager and a display screen electrically connected to the X-ray imager. The display screen is suitable for displaying the X-ray image of the cigarette frame and the items inside it, and is also suitable for the quality inspector to view.

[0015] As an improvement of the above technical solution, the artificial quality inspection station is further provided with at least three level determination switches. The at least three level determination switches are used to correspond to different dryness degrees and purchase price coefficients respectively, and are all electrically connected to the central control PC. The central control PC is used to control the front transfer mechanism to transfer for a predetermined time when the start switch is pressed, a level determination switch is pressed, and the first reader reads the cigarette frame information.

[0016] As an improvement of the above technical solution, the front transfer mechanism is sequentially provided with an inclined upper frame transfer structure, a first buffer transfer structure, a quality inspection temporary storage transfer structure, and a second buffer transfer structure along the cigarette frame transfer direction. The central control PC is suitable for controlling the start and stop of the inclined upper frame transfer structure according to whether the proximity switch detects and whether the cigarette farmer's cigarette frame information is associated. The central control PC is suitable for controlling the start and stop of the first buffer transfer structure and the quality inspection temporary storage transfer structure according to whether the first reader reads the cigarette frame and whether the start switch is pressed. The central control PC is suitable for controlling the start and stop of the second buffer transfer structure and the transfer and connection structure according to whether the second reader reads the cigarette frame and whether the cigarette frame and the net weight information are associated.

[0017] As an improvement of the above technical solution, the front transfer mechanism, the transfer connection structure and the storage transfer mechanism all include a pair of mounting beams, transfer rollers and cover plates. A plurality of transfer rollers are arranged side by side at intervals along the axial direction on the pair of mounting beams. A plurality of upwardly opening card slots are arranged at intervals along the axial direction on each beam of the pair of mounting beams. Both ends of the transfer rollers are clamped and lying in the card slots through bearings. The cover plates are respectively connected to the respective beams of the pair of mounting beams to cover the bearings and sprockets at the ends of the transfer rollers and limit the bearings in the card slots.

[0018] As an improvement of the above technical solution, it further includes railing plates. Each beam of the pair of mounting beams is respectively adapted to be inserted by the corresponding railing plate, and a transfer channel is defined between two opposite railing plates.

[0019] As an improvement of the above technical solution, it further includes a gathering and distributing conveyor belt, which is adapted to gather the tobacco leaves dropped by the front transfer mechanism, the transfer connection structure and the storage transfer mechanism.

[0020] As an improvement of the above technical solution, a plurality of brooms are arranged at intervals along the axial direction on the gathering and distributing conveyor belt. The brooms are adapted to remove the tobacco leaves caught by adjacent two transfer rollers and also to push the tobacco leaves on the gathering and distributing conveyor belt. Description of the Drawings

[0021] The following further elaborates in detail on the specific embodiments of the present invention in conjunction with the drawings, where:

[0022] Figure 1 is a schematic structural diagram of a semi-automatic roller conveyor tobacco leaf acquisition line according to an embodiment of the present invention;

[0023] Figure 2 is Figure 1 showing the disassembly of the semi-automatic roller conveyor tobacco leaf acquisition line;

[0024] Figure 3 is Figure 1 showing a schematic structural diagram of the weighing mechanism of the semi-automatic roller conveyor tobacco leaf acquisition line;

[0025] Figure 4 is Figure 1 showing a partial structural disassembly diagram of the semi-automatic roller conveyor tobacco leaf acquisition line.

[0026] The drawings are only one specific embodiment of the present invention, and the form and structure of this specific embodiment should not limit the expansion of other embodiments.

[0027] Front transfer mechanism 100, information recording station 110, machine inspection station 120, X-ray imager 121, manual quality inspection station 130, start switch 131, grade determination switch 132, inclined upward frame transfer structure 100a, first buffer transfer structure 100b, quality inspection temporary storage transfer structure 100c, second buffer transfer structure 100d;

[0028] Weighing mechanism 200, weighing body 210, bracket 220, transmission connection structure 221, second reader 230;

[0029] Inbound transmission mechanism 300;

[0030] Installation beam pair 410, card slot 411, transmission roller 420, cover plate 430, bearing 440, sprocket 450;

[0031] Diversion conveyor belt 510, broom 511; Specific implementation mode

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Refer to Figures 1 to 3 , the present invention provides a semi-automatic roller conveyor tobacco leaf purchase line, which is sequentially provided with a front transmission mechanism 100, a weighing mechanism 200 and an inbound transmission mechanism 300 along the tobacco frame transmission direction. The tobacco frame is provided with an information board, and the tobacco frame information of the information board includes a two-dimensional code and / or an RDIF tag;

[0034] The front transmission mechanism 100 is sequentially provided with an information acquisition station 110 and an artificial quality inspection station 130 suitable for workers to check the quality of tobacco leaves in the tobacco frame along the tobacco frame transmission direction. The information acquisition machine at the information acquisition station 110 is suitable for acquiring tobacco frame information and tobacco farmer information, associating the tobacco frame information with the tobacco farmer information. A proximity switch is arranged at the information acquisition station 110, and a first reader and a start switch 131 are arranged at the artificial quality inspection station 130.

[0035] The weighing mechanism 200 includes a weighing body 210 and a bracket 220. The bracket 220 is provided with a transmission connection structure 221. The front transmission mechanism 100 is connected to the inbound transmission mechanism 300 through the transmission connection structure 221. A second reader 230 is arranged above the weighing mechanism 200;

[0036] Among them, the front transmission mechanism 100, the information acquisition machine, the start switch 131, the second reader 230, the weighing body 210, and the transmission connection structure 221 are electrically connected to the central control PC. When the proximity switch detects the presence of a cigarette frame, the central control PC is used to control the front transmission mechanism 100 to pause. After the information acquisition machine completes information acquisition and association, the central control PC is used to control the front transmission mechanism 100 to transmit for a predetermined time when the proximity switch detects, that is, with a fixed transmission speed, and transmit the length of a cigarette frame when the proximity switch detects, to complete the continued forward transmission of the recorded cigarette frame;

[0037] When the first reader reads the cigarette frame information, the central control PC is used to control the front transmission mechanism 100 to pause. After manual quality inspection is completed, the central control PC is used to control the front transmission mechanism 100 to transmit for a predetermined time when the start switch 131 is pressed and the first reader reads the cigarette frame information;

[0038] When the second reader 230 reads the cigarette frame information, the central control PC is used to control the transmission connection structure 221 to pause. When the second reader 230 reads the cigarette frame information and the weighing body 210 synchronously weighs the net weight, the central control PC records and associates the cigarette frame information and the net weight, and then controls the transmission connection structure 221 to transmit for a predetermined time when the second reader 230 reads the cigarette frame information.

[0039] It can be understood that the inspection of the quality of tobacco leaves includes the dryness of tobacco leaves (the hardness, brittleness, softness, and water moistness of the tobacco leaves by hand feeling), and the integrity of tobacco leaves.

[0040] The information plate is provided with a QR code and / or an RDIF card, etc. Correspondingly, the first reader and the second reader 230 correspondingly include a barcode scanner (i.e., a camera) and / or an RDIF sensor. The barcode is an equivalent replacement for the QR code. For the convenience of tobacco farmers and workers to identify the cigarette frame, the information plate is also assigned an Arabic code, and the Arabic code corresponds to the QR code one by one. The information plate can be fixed on the cigarette frame, or it can be an activity plate that is convenient to pick up and convenient to lie on the tobacco leaves. Preferably, the activity plate is connected to the cigarette frame through a rope and a lock.

[0041] The information acquisition machine includes a first PC, and also includes an RDIF sensor and / or a barcode scanner. The first PC and the central control PC can be the same PC, or they can be two connected computers / computers. The PC is the computer / computer used in industry or life. Radio frequency identification is RFID, Radio Frequency Identification technology, also known as electronic tags, wireless radio frequency identification. It is a communication technology that can identify specific targets through radio signals and read and write relevant data without establishing mechanical or optical contact.

[0042] The front transfer mechanism 100, the transfer connection structure 221, and the warehousing transfer mechanism 300 can be in the form of a belt / transmission belt, or can also be Figures 1 to 4 the roller / roller manner shown.

[0043] Referring to Figure 3 , it can be understood that the bracket 220 is suitable for supporting the tobacco frame and its tobacco leaves. The weighing mechanism 200 is essentially a platform scale, and the bracket 220 is essentially a tray provided with a transfer connection structure 221. The platform scale is common knowledge, such as the commonly used electronic scale on the market. It can set the tare weight G1, calculate and display the net weight G2 according to the weighed weight G0, G2 = G0 - G1, that is, remove the tare weight.

[0044] Referring to Figures 1 to 4 , preferably, the feet of the front transfer mechanism 100, the transfer connection structure 221, and the warehousing transfer mechanism 300 are connected with height-adjusting screws, which is convenient for adjusting the heights and levels of the front transfer mechanism 100, the transfer connection structure 221, and the warehousing transfer mechanism 300.

[0045] Referring to Figure 1 、 Figure 2 , the operation process of the present utility model can be as follows: (When the information recording station 110 is set at the starting end of the front transfer mechanism 100) The tobacco frame pauses for forward transfer. The tobacco frame carrying tobacco leaves is scanned and read by the information recorder. The first PC of the information recorder responds in text or voice "Please immediately enter the information of the tobacco farmer". The actual allowed time T1, such as 2 minutes. Otherwise, the information of the tobacco frame without associated tobacco farmer information is invalidated. The information recorder enters the information of the tobacco farmer or scans the tobacco farmer's certificate / identity plate. The information recorder associates the information of the tobacco frame and the information of the tobacco farmer and presents it in the data form A of the same tobacco frame / coding;

[0046] Or, (When the information recording station 110 is set in the middle of the front transfer mechanism 100), the tobacco frame carrying tobacco leaves is uploaded to the information recording station 110 by the front transfer mechanism 100. The tobacco frame pauses for forward transfer to record the information of the tobacco frame and the information of the tobacco farmer and associate them;

[0047] During the acquisition process, along the moving direction of the tobacco frame, the tobacco farmers queue up and move to the information recording station 110 one by one in sequence. After completing the recording of the information of the tobacco frame and the tobacco farmer, they leave in turn, for example, go to the rest hall / rest area.

[0048] After the cigarette frame information and tobacco farmer information are processed, the central control PC controls the front transmission mechanism 100 to allow transmission for a predetermined time T2 when the proximity switch detects, so that the cigarette frame crosses the information recording station 110. After the cigarette frame passes, the allowable time is reset to zero. If there is no cigarette frame approaching, the front transmission mechanism 100 runs continuously. When a new cigarette frame is detected, the front transmission mechanism 100 pauses again. If the transmission rate V of the front transmission mechanism 100 is 2.5 cm / s and the length L of the cigarette frame is 40 cm, when the proximity switch detects, the front transmission mechanism 100 transmits for a predetermined time T2 = L / V;

[0049] The cigarette frame is transmitted to the manual quality inspection station 130 by the front transmission mechanism 100. When the first reader detects, the front transmission mechanism 100 pauses;

[0050] The quality inspector checks the color of the tobacco leaves and determines whether to purchase according to the color, that is, touches the start switch 131, or drives the cigarette frame and its tobacco leaves away from the front transmission mechanism 100. After the manual quality inspection is completed, the central control PC controls the front transmission mechanism 100 to transmit for a predetermined time T2 when the start switch 131 is touched and the first reader reads the cigarette frame information, so that the cigarette frame crosses the manual quality inspection station 130. After the cigarette frame passes, the allowable time is reset to zero. If there is no cigarette frame approaching the first reader, the front transmission mechanism 100 runs continuously. When the first reader detects a new cigarette frame, the front transmission mechanism 100 pauses again;

[0051] The cigarette frame that has passed the manual quality inspection is transmitted to the weighing mechanism 200 by the front transmission mechanism 100. When the second reader 230 detects, the transmission connection structure 221 pauses;

[0052] The weighing body 210 weighs the total weight G0 of the bracket 220, the cigarette frame and the tobacco leaves. The bracket 220 and the cigarette frame are both calibrated objects. The weighing body 210 subtracts the total tare weight G1 of the bracket 220 and the cigarette frame, that is, the weighing body 210 calculates the net weight G2 of the tobacco leaves, G2 = G0 - G1. The central control PC records and associates the cigarette frame information shown by the second reader 230 obtained synchronously and the net weight G2 measured by the weighing body 210;

[0053] In summary, the cigarette frame information is associated with the corresponding tobacco farmer information and the corresponding tobacco leaf weight information in two steps. The central control PC sums up the associated information in the information form A of the same cigarette frame / coding, that is, the cigarette frame information, the tobacco farmer information, and the tobacco leaf weight information are presented in the information form A of the same cigarette frame / coding. The form even states the rated weight of the cigarette frame for the convenience of the tobacco farmer to check. The cigarette frames corresponding to the forms without weighing information can be found at the waste collection station or searched on-site; better, a monitor is set up in the purchasing workshop;

[0054] After weighing is completed, the central control PC controls the transfer and connection structure 221 to transfer for a predetermined time T2 when the weighing has been recorded and the second reader 230 reads the information of the tobacco frame, so that the tobacco frame moves away from the weighing mechanism 200. After the tobacco frame passes by, the allowed time is reset to zero. If there is no tobacco frame approaching the second reader 230, the transfer and connection structure 221 continues to operate. When the second reader 230 detects a new tobacco frame, the transfer and connection structure 221 pauses again;

[0055] The in-warehouse transfer mechanism 300 receives the weighed tobacco frames and transfers them to the storage area. The in-warehouse transfer mechanism 300 may not be controlled by the central control PC and may even operate continuously.

[0056] Compared with the prior art, the beneficial effects of the present application include: there is no need for the purchaser and the tobacco farmer to repeatedly carry the tobacco leaves, and there is no need for excessive manual recording of weighing, which improves the efficiency of tobacco leaf acquisition and facilitates the orderliness of the acquisition site; the tobacco leaf-related information is directly entered into the computer, which is convenient for storage and screen display.

[0057] In some embodiments of the present utility model, the central control PC is electrically connected to a screen suitable for being placed in the hall. The screen is suitable for displaying the coding information, tobacco farmer information, tobacco leaf weight information, etc. of each tobacco frame, which is convenient for the tobacco farmer to determine whether the tobacco leaves are subscribed and whether the subscribed weight is actual.

[0058] Refer to Figure 1 、 Figure 2 Refer to

[0059] In some embodiments of the present utility model, the front transfer mechanism 100 is sequentially provided with an information recording station 110, a machine inspection station 120, and an artificial quality inspection station 130 along the tobacco frame transfer direction. The machine inspection station 120 is provided with an X-ray imager 121 and a display screen electrically connected to the X-ray imager 121. The display screen is suitable for displaying the X-ray image of the tobacco frame and the items inside it, and is also suitable for the quality inspector to view. It can be understood that the X-ray imager 121 and the connected screen (this display screen) are jointly equivalent to a common security inspection machine in life. Through X-ray imaging, it is judged whether there are stones, metal strips, tools, etc. remaining in the tobacco leaves, and the moisture content / dryness of the tobacco leaves is estimated through the depth of the X-ray image of the tobacco leaves.

[0060] Refer to Figure 1 、 Figure 2, at the manual quality inspection station 130, there are also at least three level determination switches 132. The at least three level determination switches 132 are used to correspond to different dryness levels and purchase price coefficients respectively, and are all electrically connected to the central control PC. For example, there is an optimal dryness level one switch, a slightly dry or slightly wet dryness level two switch, and an overly dry or overly wet dryness level three switch. After manual quality inspection is completed by the central control PC, it is used to control the front-end transmission mechanism 100 to transmit for a predetermined time when the start switch 131 is pressed, a level determination switch 132 is pressed, and the first reader reads the cigarette frame information. Selecting and pressing the level determination switch 132 indicates that the tobacco leaves in the cigarette frame are determined to be the corresponding purchase level and are given the corresponding purchase price coefficient X%. The actual purchase price Y1 of the tobacco leaves is X% of the base purchase price Y0. The purchase price coefficient X% is associated with the corresponding cigarette frame information to be presented in the information form A of the same cigarette frame / coding. The tobacco farmer determines whether to agree to be purchased based on information such as the weighing deviation degree and pricing.

[0061] The level determination switch 132 directly corresponds to the actual purchase price, which belongs to equivalent replacement.

[0062] Refer to Figure 1 , Figure 2 , in some embodiments of the present invention, the front-end transmission mechanism 100 is sequentially provided with an inclined upward frame transmission structure 100a, a first buffer transmission structure 100b, a quality inspection temporary storage transmission structure 100c, and a second buffer transmission structure 100d along the cigarette frame transmission direction. The central control PC is adapted to control the start and stop of the inclined upward frame transmission structure 100a according to whether the proximity switch detects and whether the cigarette farmer's cigarette frame information is associated. The central control PC is adapted to control the start and stop of the first buffer transmission structure 100b and the quality inspection temporary storage transmission structure 100c according to whether the first reader reads the cigarette frame and whether the start switch 131 is pressed. The central control PC is adapted to control the start and stop of the second buffer transmission structure 100d and the transmission connection structure 221 according to whether the second reader 230 reads the cigarette frame and whether the cigarette frame and net weight information are associated.

[0063] Refer to Figure 4, in some embodiments of the present utility model, the front transfer mechanism 100, the transfer connection structure 221, and the storage transfer mechanism 300 all include a pair of mounting beams 410, transfer rollers 420, and a cover plate 430. The pair of mounting beams 410 are arranged side by side with multiple transfer rollers 420 spaced axially. Each beam of the pair of mounting beams 410 is provided with multiple upward-opening card slots 411 spaced axially. Both ends of the transfer rollers 420 are clamped and lying in the card slots 411 through bearings 440. The cover plate 430 is correspondingly connected to each beam of the pair of mounting beams 410 to cover the bearings 440 and sprockets 450 at the ends of the transfer rollers 420, limiting the bearings 440 in the card slots 411. The tobacco frames are transferred in a multi-roller manner, having strong rigidity. In addition, the cover plate 430 of the present utility model has multiple functions, and the disassembly, assembly, and maintenance of the transfer rollers 420 are relatively convenient, and the bearings 440 and sprockets 450 are also well isolated and protected.

[0064] In some embodiments of the present utility model, there is also a railing plate. Each beam of the pair of mounting beams 410 is respectively adapted to be inserted by the corresponding railing plate, and a transfer channel is defined between two opposite railing plates.

[0065] Refer to Figure 1 , Figure 2 , in some embodiments of the present utility model, there is also a gathering and distributing conveyor belt 510, and the gathering and distributing conveyor belt 510 is adapted to collect the tobacco leaves dropped by the front transfer mechanism 100, the transfer connection structure 221, and the storage transfer mechanism 300.

[0066] Refer to Figure 1 , Figure 2 , in some embodiments of the present utility model, the gathering and distributing conveyor belt 510 is provided with multiple brooms 511 spaced axially. The brooms 511 are adapted to remove the tobacco leaves caught by adjacent two transfer rollers 420, and are also adapted to push the tobacco leaves on the gathering and distributing conveyor belt 510.

[0067] The above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Any modification or equivalent replacement that does not depart from the spirit and scope of the present utility model should be covered within the scope of the technical solutions of the present utility model.

Claims

1. A semi-automatic roller conveyor tobacco leaf purchasing line, characterized in that, A pre - transmission mechanism (100), a weighing mechanism (200), and a warehousing transmission mechanism (300) are sequentially arranged along the transmission direction of the cigarette box. An information plate is set on the cigarette box, and the cigarette box information on the information plate includes a two - dimensional code and / or an RDIF tag. The pre - transmission mechanism (100) is sequentially provided with an information acquisition station (110) and an artificial quality inspection station (130) along the transmission direction of the cigarette box. The information acquisition machine at the information acquisition station (110) is adapted to acquire the cigarette box information and the tobacco farmer information, and associate the cigarette box information with the tobacco farmer information. A proximity switch is set at the information acquisition station (110), and a first reader and a start switch (131) are set at the artificial quality inspection station (130). The weighing mechanism (200) includes a weighing body (210) and a bracket (220). The bracket (220) is provided with a transmission connection structure (221). The pre - transmission mechanism (100) is connected to the warehousing transmission mechanism (300) through the transmission connection structure (221). A second reader (230) is set above the weighing mechanism (200). Among them, the pre - transmission mechanism (100), the information acquisition machine, the start switch (131), the second reader (230), the weighing body (210), and the transmission connection structure (221) are electrically connected to a central control PC. The central control PC is used to control the pre - transmission mechanism (100) to pause when the proximity switch detects the presence of a cigarette box. The central control PC is used to control the pre - transmission mechanism (100) to transmit for a predetermined time when the information acquisition machine has completed information acquisition and association and the proximity switch detects. The central control PC is used to control the pre - transmission mechanism (100) to pause when the first reader reads the cigarette box information. The central control PC is used to control the pre - transmission mechanism (100) to transmit for a predetermined time when the start switch (131) is pressed and the first reader reads the cigarette box information. The central control PC is used to control the transmission connection structure (221) to pause when the second reader (230) reads the cigarette box information. The central control PC is used to record and associate the cigarette box information and the net weight when the second reader (230) reads the cigarette box information and the weighing body (210) synchronously weighs the net weight, and then control the transmission connection structure (221) to transmit for a predetermined time when the second reader (230) reads the cigarette box information.

2. The semi-automatic roller conveyor tobacco purchasing line according to claim 1, wherein The central control PC is electrically connected to a screen suitable for being placed in the hall, and the screen is suitable for displaying the coding information, tobacco farmer information, and tobacco leaf weight information of each cigarette box.

3. The semi-automatic roller conveyor tobacco purchasing line according to claim 1, characterized in that, The pre - transmission mechanism (100) is sequentially provided with an information acquisition station (110), a machine inspection station (120), and an artificial quality inspection station (130) along the transmission direction of the cigarette box. The machine inspection station (120) is provided with an X - ray imager (121) and a display screen electrically connected to the X - ray imager (121). The display screen is suitable for displaying the X - ray image of the cigarette box and the items inside it, and is also suitable for quality inspectors to view.

4. The semi-automatic roller conveyor tobacco purchasing line according to claim 3, characterized in that, The manual quality inspection station (130) is further provided with at least three level determination switches (132), and the at least three level determination switches (132) are used to correspond to different dryness degrees and purchase price coefficients respectively, and are all electrically connected to the central control PC. The central control PC is used to control the front transmission mechanism (100) to transmit for a predetermined time when the start switch (131) is pressed, a level determination switch (132) is pressed, and the first reader reads the cigarette frame information.

5. The semi-automatic roller conveyor tobacco leaf purchasing line according to claim 1, wherein The front transmission mechanism (100) is sequentially provided with an inclined upward frame transmission structure (100a), a first buffer transmission structure (100b), a quality inspection temporary storage transmission structure (100c), and a second buffer transmission structure (100d) along the cigarette frame transmission direction. The central control PC is adapted to control the start and stop of the inclined upward frame transmission structure (100a) according to whether the proximity switch detects and whether the cigarette farmer's cigarette frame information is associated. The central control PC is adapted to control the start and stop of the first buffer transmission structure (100b) and the quality inspection temporary storage transmission structure (100c) according to whether the first reader reads the cigarette frame and whether the start switch (131) is pressed. The central control PC is adapted to control the start and stop of the second buffer transmission structure (100d) and the transmission connection structure (221) according to whether the second reader (230) reads the cigarette frame and whether the cigarette frame and net weight information are associated.

6. The semi-automatic roller conveyor tobacco purchasing line according to claim 1, wherein, The front transmission mechanism (100), the transmission connection structure (221), and the warehousing transmission mechanism (300) all include a pair of mounting beams (410), transmission rollers (420), and a cover plate (430). The pair of mounting beams (410) are arranged with a plurality of transmission rollers (420) spaced apart axially. Each beam of the pair of mounting beams (410) is provided with a plurality of upwardly open card slots (411) spaced apart axially. Both ends of the transmission roller (420) are respectively clamped and laid in the card slots (411) through bearings (440). The cover plate (430) is correspondingly connected to each beam of the pair of mounting beams (410) to cover the bearings (440) and sprockets (450) at the ends of the transmission rollers (420), and to limit the bearings (440) in the card slots (411).

7. The semi-automatic roller conveyor tobacco purchasing line according to claim 6, characterized in that, It further includes a railing. Each beam of the pair of mounting beams (410) is respectively adapted to be inserted by a corresponding railing, and a transmission channel is defined between two opposite railings.

8. The semi-automatic roller conveyor tobacco leaf purchasing line according to claim 6, characterized in that, It further includes a collecting and distributing conveyor belt (510), and the collecting and distributing conveyor belt (510) is adapted to collect the tobacco leaves dropped by the front transmission mechanism (100), the transmission connection structure (221), and the warehousing transmission mechanism (300).

9. The semi-automatic roller conveyor tobacco leaf purchasing line according to claim 8, characterized in that, The collecting and distributing conveyor belt (510) is provided with a plurality of brooms (511) spaced apart axially. The brooms (511) are adapted to pick out the tobacco leaves caught by two adjacent transmission rollers (420), and are also adapted to push the tobacco leaves on the collecting and distributing conveyor belt (510).

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