A fixed code scanning device for tobacco leaf warehouse

Abstract

The present application relates to the technical field of tobacco warehouse, especially to a fixed scanning code device for tobacco warehouse, comprising: a conveyor belt, an adjusting assembly arranged on one side of the conveyor belt, and a scanning code frame arranged directly above the adjusting assembly, wherein one side of the conveyor belt is provided with a vibrating motor, the adjusting assembly comprises a positioning frame and adjusting frames, the number of the adjusting frames is several, the adjusting frames are evenly arranged in the form of a ring on the inner side of the positioning frame, the positioning frame rotates along the center position of the ring formed by the adjusting frames, the adjusting frame comprises a positioning frame and a clamping plate for clamping tobacco packages, the positioning frame is in the form of a ring, an arc-shaped moving groove is formed in the inside of the positioning frame, and the clamping plate moves along the inner wall of the moving groove. The vibrating motor and the angle inclination of the conveyor belt can push the tobacco packages to a specific direction during the conveying process, and the tobacco packages can be adjusted in a specific direction until the identification of the tobacco packages is completed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tobacco storage, in particular to a fixed code scanning device for tobacco warehouse. BACKGROUND

[0002] Tobacco usually refers to the raw material for manufacturing various tobacco products, and the baling process of tobacco is usually carried out after drying. The finished product after baling is usually stored by packaging with sacks. When entering the warehouse, all tobacco bales need to be scanned and recorded. The label is usually fixed on the outer surface of the tobacco bale during bagging. When scanning and recording the tobacco bale, the tobacco bale is usually transported by a conveyor belt, and the scanning and recording are carried out by a fixed scanning device. This identification operation requires workers to assist nearby, because the placement of the tobacco bale is not in a fixed state during unloading, which may cause the position of the identified label to be indefinite. Manual adjustment of the position is required to ensure that the scanning device can accurately identify the scanning position. Although this equipment can complete the scanning of the tobacco bale, it requires manual assistance and has low automation. SUMMARY

[0003] The present application provides the following technical solutions in view of the deficiencies of the prior art.

[0004] A fixed code scanning device for a tobacco warehouse, comprising: a conveyor belt, an adjusting assembly arranged on one side of the conveyor belt, and a code scanning frame arranged directly above the adjusting assembly.

[0005] Specifically, the included angle between the surface of the conveyor belt and the horizontal plane is less than 85° and greater than 45°, one side of the conveyor belt is provided with a vibration motor, the adjusting assembly comprises a positioning frame and an adjusting frame, the number of the adjusting frame is several, and the adjusting frame is evenly installed in the form of a ring on the inner side of the positioning frame, the positioning frame rotates along the center position of the ring formed by the adjusting frame, the adjusting frame comprises a positioning frame and a clamping plate for clamping the tobacco bale, the positioning frame is in the form of a ring, an arc-shaped moving groove is formed in the inside of the positioning frame, the clamping plate moves along the inner wall of the moving groove, and the code scanning frame is used for scanning the label on the tobacco bale. When the conveyor belt moves the tobacco bale to a position close to the adjusting frame, the clamping plate clamps the tobacco bale and rotates until the code scanning frame completes the scanning of the tobacco bale.

[0006] As an improvement of the above technical solution, a bottom plate is further included, the upper end surface of the bottom plate is detachably fixed with a support one, the support one has at least two groups, at least two groups of the support one are arranged on both sides of the positioning frame, the upper end of the support one is fixed with a rotatable positioning shaft, and the positioning shaft and the rotation center of the support one are connected by a key.

[0007] As the improvement of the above technical scheme, the upper end surface of the bottom plate is detachably fixed with a support three, the upper end surface of the support three is fixed with a telescopic rod one, the telescopic end of the telescopic rod one is fixed with a support plate, the support plate is used for receiving the tobacco leaf package pushed down from the conveying belt, and the support plate is located below the adjusting frame when the support plate is extended.

[0008] As the improvement of the above technical scheme, the upper end surface of the bottom plate is detachably fixed with a support two, the two sides of the conveying belt are detachably fixed to the upper end portion of the support two, the support two is in an inclined shape, and the included angle between the support two and the horizontal plane is less than 85° and greater than 45°.

[0009] As the improvement of the above technical scheme, the upper end surface of the support two is fixed with a plurality of baffles, the other end of the baffle has a protruding portion extending towards the surface of the conveying belt, the distance between the protruding portion and the side wall of the conveying belt away from the baffle is less than the length of the tobacco leaf package and greater than the width of the tobacco leaf package, and one side of the conveying belt is connected with a stepping motor two.

[0010] As the improvement of the above technical scheme, the positioning frame comprises a connecting frame, a ring body one and a ring body two arranged concentrically, the ring body one and the ring body two are fixed to the two sides of the connecting frame, one side of the support one is fixed with a stepping motor one, and the power end of the stepping motor one is fixed to the center position of the connecting frame.

[0011] As the improvement of the above technical scheme, the adjusting frame is arranged between the ring body one and the ring body two, the adjusting frame comprises two groups of positioning frames, the positioning frames and the internal moving grooves are all semicircular, and the end portions of the two groups of positioning frames abut to form a ring-shaped frame.

[0012] As the improvement of the above technical scheme, the internal moving groove is provided with a moving plate, the lower end of the moving plate is connected with a telescopic clamping plate, and the upper end of the moving plate is connected with a moving wheel.

[0013] As the improvement of the above technical scheme, one side of the moving groove is provided with a semicircular side groove, the outer surface of the moving wheel is close to the inner wall of the moving groove, the other side of the moving wheel passes out from the side groove to the outside of the moving groove, the lower end surface of the moving plate is provided with a telescopic rod two in a penetrating mode, and the power end of the telescopic rod two is fixedly connected with the clamping plate.

[0014] As the improvement of the above technical scheme, one side of the positioning frame is provided with adjusting motors consistent with the number of adjusting frames, one end of the adjusting motor is inserted into the inside of the ring body one and connected with one of the positioning frames, the inside of the ring body two is penetrated by a rotatable positioning pin, and the other end of the positioning pin is fixed with another positioning frame.

[0015] The beneficial effects of the present application are as follows:

[0016] The vibration motor and the angle inclination of the conveying belt can push the tobacco bale to a specific direction in the conveying process, and the adjusting function of the adjusting frame can adjust the tobacco bale in a direction until the tobacco bale can complete the identification work, and when the identification work can be completed, the direction of the tobacco bale can be ensured, so that the tobacco bale can be adjusted in the direction while the code is scanned, and the subsequent stacking and arrangement work is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view from a first perspective of the present application;

[0018] Figure 2 is a perspective view from a second perspective of the present application;

[0019] Figure 3 is a top view of the present application;

[0020] Figure 4 is Figure 3 is an isometric cross-sectional view at A-A in the middle;

[0021] Figure 5 is Figure 4 is an enlarged structural view at C;

[0022] Figure 6 is Figure 3 is an isometric cross-sectional view at B-B in the middle;

[0023] Figure 7 is Figure 6 is an enlarged structural view at D;

[0024] Figure 8 is a right view of the present application;

[0025] Figure 9 is a schematic view of the position of the tobacco bale and the scanning point when the code scanning frame of the present application detects.

[0026] Reference signs: 10, bottom plate; 11, support one; 111, code scanning frame; 112, stepping motor one; 12, support two; 13, support three; 131, telescopic rod one; 132, support plate; 20, conveying belt; 21, baffle; 22, stepping motor two; 23, vibration motor; 30, adjusting assembly; 31, positioning frame; 311, ring body one; 312, ring body two; 313, connecting frame; 32, adjusting frame; 321, positioning frame; 322, moving groove; 323, side groove; 324, moving plate; 325, moving wheel; 326, clamping plate; 327, telescopic rod two; 328, positioning pin; 33, adjusting motor. DETAILED DESCRIPTION

[0027] Following, specific embodiments of the present application are illustrated by way of specific examples, and other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of this specification. The present application can also be implemented or applied by other different specific embodiments, and various modifications or changes can be made to the details in this specification based on different views and applications without departing from the spirit of the present application.

[0028] The label is usually fixed on the outer surface of the tobacco leaf bag when it is bagged. When the code of the tobacco leaf bag is scanned, it is usually transported by a conveyor belt and scanned by a fixed scanning device. However, this identification operation needs to be assisted by workers nearby, because the tobacco leaf bags are not in a fixed state when they are unloaded, which may cause the position of the identified label to be indefinite. Therefore, manual adjustment of the position is required to ensure that the scanning device can accurately identify the scanning position. Although this device can complete the scanning of the tobacco leaf bag, it needs manual assistance and has low automation.

[0029] To solve the above problems, please refer to Figures 1-8 , a fixed scanning device for tobacco warehouse is provided, comprising: a conveyor belt 20, an adjusting assembly 30 arranged on one side of the conveyor belt 20, and a scanning frame 111 arranged directly above the adjusting assembly 30.

[0030] Specifically, the angle between the surface of the conveyor belt 20 and the horizontal plane is less than 85° and greater than 45°. A vibration motor 23 is arranged on one side of the conveyor belt 20. The adjusting assembly 30 includes a positioning frame 31 and adjusting frames 32. The number of adjusting frames 32 is several, which are evenly arranged in a ring shape inside the positioning frame 31. The positioning frame 31 rotates along the center position of the ring formed by the adjusting frames 32. The adjusting frame 32 includes a positioning frame 321 and a clamping plate 326 for clamping the tobacco leaf bag. The positioning frame 321 is in a ring shape, and an arc-shaped moving groove 322 is formed in the inside of the positioning frame 321. The clamping plate 326 moves along the inner wall of the moving groove 322. The scanning frame 111 is used for scanning the label on the tobacco leaf bag. When the conveyor belt 20 moves the tobacco leaf bag to a position close to the adjusting frame 32, the clamping plate 326 clamps the tobacco leaf bag and rotates until the scanning frame 111 completes the scanning of the tobacco bag.

[0031] When conveying, the tobacco bale is placed on the conveying belt 20, and since the entire conveying belt 20 is in an inclined state, when the tobacco bale is placed on the surface of the conveying belt 20, it will move towards the inclined side due to gravity until it abuts against the edge of the conveying belt 20, and in order to avoid excessive friction causing the tobacco bale to be unable to move, vibration is provided on the side through the vibration motor 23 to assist the conveying of the conveying belt 20, when the tobacco bale is conveyed to the edge position, the tobacco bale is clamped by the clamping plate 326, and since the direction of the tobacco bale at this time is unknown, the direction of the entire tobacco bale is adjusted by adjusting the position of the clamping plate 326, after the adjustment is completed, the entire adjusting frame 32 is turned to the uppermost position, the label of the tobacco bale is identified through the code scanning frame 111, the code scanning position of the code scanning frame 111 is fixed, that is, the code scanning frame 111 can only scan the label at a specific position, for example, only the upper right corner of the tobacco bale can be identified, so as long as the code scanning operation can be performed, the position of the entire tobacco bale can be determined, so that the direction of all the tobacco bales after the code scanning is completed is consistent, and in this case, the direction is kept unchanged after the code scanning is completed, so that the tobacco bale can be directly stacked in the subsequent transportation operation.

[0032] In order to further ensure the integrity of the foregoing scheme, the supporting structure features thereof are provided, please refer to Figure 1 , comprising: a bottom plate 10, the upper end surface of the bottom plate 10 is detachably fixed with a support one 11, the support one 11 has at least two groups, and the at least two groups of support ones 11 are respectively arranged on the two sides of the positioning frame 31, and the upper end portion of the support one 11 is fixed with a rotatable positioning shaft, and the positioning shaft is in key connection with the rotation center of the support one 11.

[0033] The positioning frame 31 is fixed and supported by the support one 11, and the purpose of arranging the support one 11 in two groups is to facilitate the disassembly of the structural parts of the entire device in subsequent operations, and when structural damage occurs, the damaged structure can be disassembled and replaced, facilitating subsequent maintenance.

[0034] In the foregoing scheme, the clamping plate 326 is required to clamp the tobacco bale on the conveying belt 20, which requires high accuracy, and speed adjustment between programs is required, which increases the complexity of the program, in order to reduce the debugging work in the early stage, please refer to Figure 1 , specifically, the upper end surface of the bottom plate 10 is detachably fixed with a support three 13, the upper end surface of the support three 13 is fixed with a telescopic rod one 131, the telescopic end of the telescopic rod one 131 is fixed with a supporting plate 132, and the supporting plate 132 is used to receive the tobacco bale pushed down from the conveying belt 20, and the supporting plate 132 is located below the adjusting frame 32 when it is extended.

[0035] That is, a separate support structure is arranged at the end of the conveying belt 20 to catch the tobacco bale falling from the conveying belt 20, and the caught tobacco bale can be pushed to a specific position by adjusting the length of the telescopic rod 131, and in this design, only the feeding speed of the conveying belt 20 needs to be controlled.

[0036] In order to avoid the influence of the inclined conveying belt 20 on the bottom support plate 132, please refer to Figure 1 The upper end surface of the bottom plate 10 is detachably fixed with a bracket two 12, and the two sides of the conveying belt 20 are detachably fixed to the upper end of the bracket two 12, the bracket two 12 is inclined, and the angle between the bracket two 12 and the horizontal plane is less than 85° and greater than 45°.

[0037] The conveying belt 20 is supported by additionally arranging the bracket two 12, so that the separation of the support structure can avoid the influence of the conveying belt 20 in the vibration state on the entire bracket three 13, thereby ensuring that the tobacco bale falling on the support plate 132 can be stably supported.

[0038] In the foregoing scheme, although the tobacco bale can be accurately slid to the edge position, if the position of the tobacco bale is initially in an inclined state, vibration alone cannot guarantee that it is completely the same, and this way can cause the tobacco bale to be in an inclined state when it falls on the support plate 132, and the inclined tobacco bale can be excessively pressed by the clamping plate 326. In order to reduce the damage of the tobacco bale, the upper end surface of the bracket two 12 is fixed with a plurality of baffles 21, the other end of the baffle 21 has a protruding portion extending toward the surface of the conveying belt 20, the distance between the protruding portion and the side wall of the conveying belt 20 away from the baffle 21 is less than the length of the tobacco bale and greater than the width of the tobacco bale, and one side of the conveying belt 20 is connected with a stepping motor two 22.

[0039] When the tobacco bale moves on the conveying belt 20, the tobacco bale is limited by the baffle 21, and the tobacco bale will hit the baffle 21 during movement, and since the distance between the protruding portion and the side wall of the conveying belt 20 away from the baffle 21 is less than the length of the tobacco bale and greater than the width of the tobacco bale, the tobacco bale will not be prevented from moving, but will be in a state of being pushed to be placed horizontally, which not only makes clamping operation more convenient, but also ensures that the orientations of the tobacco bales are the same, and when the tobacco bale is moved to the support plate 132 subsequently, a slight direction change of the tobacco bale will occur, and this change can be adjusted by the clamping plate 326.

[0040] In one embodiment, please refer to Figure 1 and Figure 2The positioning frame 31 comprises a connecting frame 313, a ring body one 311 and a ring body two 312. The ring body one 311 and the ring body two 312 are fixed on both sides of the connecting frame 313. One side of the support one 11 is fixed with a stepping motor one 112. The power end of the stepping motor one 112 is fixed with the center position of the connecting frame 313.

[0041] Through the cooperation of the ring body one 311 and the ring body two 312, a certain space can be left at the position of the outer ring. Thus, the outlet position of the conveying belt 20 can be closer to the positioning frame 31, so that the tobacco package can be limited by the ring body one 311 and the ring body two 312 on both sides when falling, avoiding the vibration of the conveying belt 20 causing the falling position of the tobacco package to be unexpected.

[0042] In order to increase the adjustable range between the clamps 326 at the bottom, please refer to Figure 1 and Figure 2 The adjusting frame 32 is arranged between the ring body one 311 and the ring body two 312. The adjusting frame 32 comprises two groups of positioning frames 321. The positioning frames 321 and the internal moving grooves 322 are both semicircular. The end portions of the two groups of positioning frames 321 abut to form a ring-shaped frame.

[0043] Through the cooperation between the two positioning frames 321, a complete ring body structure is formed. This ring body structure can give the bottom clamps 326 a moving range similar to a semicircle. When the two semicircles are connected, a complete ring is formed. The clamps 326 can complete the adjusting function in the ring, thereby achieving the steering adjusting function of the clamped tobacco package.

[0044] In the foregoing scheme, the adjusting frame 32 itself cannot rotate, which leads to the direction of the adjusting frame 32 at each position being different when the entire positioning frame 31 rotates. In order to ensure that the direction of the adjusting frame 32 can be adjusted, please refer to Figures 1 to 7 Specifically, one side of the positioning frame 31 is provided with adjusting motors 33 consistent with the number of the adjusting frames 32. One end of the adjusting motor 33 is inserted into the inside of the ring body one 311 and connected with one of the positioning frames 321. The inside of the ring body two 312 penetrates a rotatable positioning pin 328. The other end of the positioning pin 328 is fixed with the other positioning frame 321.

[0045] Each adjusting frame 32 is adjusted by adding a separate adjusting motor 33. The difference lies in that only the ring body one 311 on one side needs to be adjusted, and the ring body two 312 on the other side only needs to be fixed by the positioning pin 328. The positioning pin 328 can be inserted and rotatably connected. Its structure only serves as a limiting function, and the rotation is limited by the adjusting motor 33. Therefore, the adjusting motor 33 is preferably of a type with self-locking function.

[0046] During the rotation, the orientation of the entire tobacco leaf package is changed by continuously adjusting the position of the clamping plate 326, and at the highest point, the level of the entire tobacco leaf package is adjusted by adjusting the motor 33, and when it is completely horizontal, the scanning of the label is usually at one side, unlike the traditional straight scanning, the scanning position of the label is set to an inclined state, that is, it is adapted to the position of the moving groove 322, so that the adjustment range of the label can be given, and when the position of the label is detected on one side of the symmetric direction, it can still be recognized. As shown in Figure 9 , the circle position in the figure represents the code scanning point, and when the label is on the other side of the center symmetry, the entire tobacco leaf package is turned over by adjusting the motor 33 to realize point scanning.

[0047] In order to further improve the scheme of the entire adjusting frame 32, please refer to Figure 4 and Figure 5 , the inside of the moving groove 322 is provided with a moving plate 324, the lower end of the moving plate 324 is connected with a telescopic clamping plate 326, and the upper end of the moving plate 324 is connected with a moving wheel 325.

[0048] The moving wheel 325 provides the function of overall rotation, and the moving wheel 325 can adopt a wheel with a tooth groove, which can ensure the overall positioning function, avoid the inertia of movement after rotation, and ensure that the moving wheel 325 cannot be accurately stopped at the appropriate position. The clamping plate 326 clamps the tobacco leaf package by telescopic mode, and since the entire clamping plate 326 is arranged below the adjusting frame 32, it will not affect the clamping of the tobacco leaf package, and can stably clamp the tobacco leaf package itself.

[0049] In order to further limit the position of the moving wheel 325 and facilitate the subsequent disassembly function, please refer to Figures 4 to 7 , specifically, one side of the moving groove 322 is provided with a semicircular side groove 323, the outer surface of the moving wheel 325 is in close contact with the inner wall of the moving groove 322, and the other side of the moving wheel 325 passes out of the outer side of the moving groove 322 from the side groove 323.

[0050] The moving wheel 325 can pass into the inside of the moving groove 322 from the side groove 323, and then be inserted into the clamping plate 326 and its connecting structure from the lower end of the moving groove 322 to the upper end, and finally the structure is fixed by bolts to complete the installation work, and when disassembling, only the reverse operation is needed.

[0051] In order to further improve the clamping structure of the clamping plate 326, please refer to Figures 4 to 7 , the lower end surface of the moving plate 324 is provided with a telescopic rod two 327, and the power end of the telescopic rod two 327 is fixedly connected with the clamping plate 326.

[0052] The telescopic function of the clamping plate 326 is controlled by the telescopic rod two 327. When moved to the appropriate position, the clamping function of the clamping plate 326 to the tobacco leaf bag can be realized by the elongation of the telescopic rod two 327, and when disassembly is required, the clamping to the tobacco leaf bag can be released by the way of retracting the telescopic rod two 327.

[0053] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical idea disclosed by the present application should be covered by the claims of the present application.

Claims

1. A fixed code scanning device for tobacco leaf warehouses, characterized by, Include: The bottom plate (10); The angle between the surface of the conveyor belt (20) and the horizontal plane is less than 85° and greater than 45°, and one side of the conveyor belt (20) is provided with a vibration motor (23); The adjusting assembly (30) is arranged on one side of the conveyor belt (20), the adjusting assembly (30) comprises a positioning frame (31) and an adjusting frame (32), the adjusting frame (32) is in the form of a ring and is uniformly arranged on the inner side of the positioning frame (31), the positioning frame (31) rotates along the center position of the ring formed by the adjusting frame (32), the adjusting frame (32) comprises a positioning frame (321) and a clamping plate (326) for clamping tobacco leaf packs, the positioning frame (321) is in the form of a ring, the inside of the positioning frame (321) is provided with a moving groove (322) in the form of an arc, and the clamping plate (326) moves along the inner wall of the moving groove (322); A code scanning frame (111) is arranged above the adjusting assembly (30), and the code scanning frame (111) is used for scanning the label on the tobacco leaf pack; When the conveyor belt (20) moves the tobacco leaf pack to a position close to the adjusting frame (32), the clamping plate (326) clamps the tobacco leaf pack and rotates until the code scanning frame (111) completes the scanning of the tobacco pack; The upper end surface of the bottom plate (10) is detachably fixed with a support three (13), the upper end surface of the support three (13) is fixed with a telescopic rod one (131), the telescopic end of the telescopic rod one (131) is fixed with a supporting plate (132), the supporting plate (132) is used for receiving the tobacco leaf pack pushed down from the conveyor belt (20), and the supporting plate (132) is below the adjusting frame (32) when it is extended; The inside of the moving groove (322) is provided with a moving plate (324), the lower end of the moving plate (324) is connected with a telescopic clamping plate (326), and the upper end of the moving plate (324) is connected with a moving wheel (325); One side of the moving groove (322) is provided with a side groove (323) in the form of a semicircle, the outer surface of the moving wheel (325) is close to the inner wall of the moving groove (322), the other side of the moving wheel (325) penetrates out of the outer side of the moving groove (322) from the side groove (323), and the lower end surface of the moving plate (324) is provided with a telescopic rod two (327) penetratingly, and the power end of the telescopic rod two (327) is fixedly connected with the clamping plate (326).

2. The fixed scanning code device for tobacco warehouse according to claim 1, characterized in that: The upper end surface of the bottom plate (10) is detachably fixed with a support one (11), the support one (11) has at least two groups, and the at least two groups of support one (11) are arranged on the two sides of the positioning frame (31) respectively, the upper end of the support one (11) is fixed with a rotatable positioning shaft, and the positioning shaft is connected with the rotation center of the support one (11) by a key.

3. The fixed scanning code device for tobacco warehouse according to claim 2, characterized in that: The upper end surface of the bottom plate (10) is detachably fixed with a support two (12), and the two sides of the conveyor belt (20) are detachably fixed to the upper end of the support two (12), the support two (12) is in the form of an inclination, and the angle between the support two (12) and the horizontal plane is less than 85° and greater than 45°.

4. The fixed scanning code device for tobacco warehouse according to claim 3, characterized in that: The upper end surface of the support two (12) is fixed with several baffles (21), the other end of the baffle (21) has a protruding part extending towards the surface of the conveyor belt (20), the distance between the protruding part and the side wall of the conveyor belt (20) away from the baffle (21) is less than the length of the tobacco leaf package, and greater than the width of the tobacco leaf package, one side of the conveyor belt (20) is connected with a stepping motor two (22).

5. The fixed scanning code device for tobacco warehouse according to any one of claims 2-4, characterized in that: The positioning frame (31) comprises a connecting frame (313), a ring body one (311) and a ring body two (312) arranged concentrically, the ring body one (311) and the ring body two (312) are fixed on both sides of the connecting frame (313), one side of the support one (11) is fixed with a stepping motor one (112), the power end of the stepping motor one (112) is fixed with the center position of the connecting frame (313).

6. The fixed scanning code device for tobacco warehouse according to claim 5, characterized in that: The adjusting frame (32) is arranged between the ring body one (311) and the ring body two (312), the adjusting frame (32) comprises two groups of positioning boxes (321), the positioning boxes (321) and the internal moving grooves (322) are all semicircular, the end portions of the two groups of positioning boxes (321) abut to form a ring-shaped frame.

7. The fixed scanning code device for tobacco warehouse according to claim 6, characterized in that: One side of the positioning frame (31) is provided with an adjusting motor (33) consistent with the number of the adjusting frame (32), one end of the adjusting motor (33) is inserted into the inside of the ring body one (311) and connected with one of the positioning boxes (321), the inside of the ring body two (312) is penetrated with a rotatable positioning pin (328), the other end of the positioning pin (328) is fixed with the other positioning box (321).

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