Laboratory cut tobacco blending device

Abstract

The utility model discloses a kind of for laboratory cut tobacco mixing device, including box (1), the upper portion in the box (1) is provided with first conveyor belt (2), the lower portion in the box (1) is provided with second conveyor belt (3), the top of the box (1) is provided with blanking device (4), the bottom in the box (1) is provided with discharge structure (5), one side of the box (1) is provided with elevator (6).The utility model can make cut tobacco fully mix, and have the advantages of convenient, fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mixing device, in particular to a laboratory cut tobacco mixing device. BACKGROUND

[0002] In the research stage of cigarette laboratory, dozens of single cut tobaccos are weighed according to the formula and then mixed thoroughly to ensure the consistency of cut tobacco filled into cigarettes, which facilitates effective laboratory research and evaluation. The amount of cut tobacco for each laboratory sample is about 100g-200g. At present, there is no instrument or equipment that can complete the mixing of cut tobacco. Generally, cut tobacco is manually grabbed and evenly scattered as much as possible through repeated operation to achieve the effect of mixing cut tobacco.

[0003] The manual mixing method has the following problems: first, the difference in personal operation habits and experience of the operator leads to different mixing uniformity; second, the manual operation efficiency is low; third, the manual operation force is difficult to control, which may cause more cut tobacco to be crushed and waste raw materials.

[0004] Therefore, there is an urgent need for a laboratory cut tobacco mixing device that meets the requirements of uniformity, convenience and repeatability to improve the above problems. SUMMARY

[0005] The utility model aims to provide a laboratory cut tobacco mixing device to solve the technical problems in the prior art, which can mix cut tobacco thoroughly and has the advantages of convenience and speed.

[0006] The utility model provides a laboratory cut tobacco mixing device, which comprises a box body, a first conveyor belt is arranged at the upper part in the box body, a second conveyor belt is arranged at the lower part in the box body, a feeding device is arranged at the top of the box body, a discharging structure is arranged at the bottom in the box body, and an elevator is arranged on one side of the box body.

[0007] In the foregoing laboratory cut tobacco mixing device, preferably, the box body comprises a front box plate, a rear box plate, a left box plate and a right box plate, and the front box plate, the rear box plate, the left box plate and the right box plate jointly form a rectangular box body.

[0008] In the foregoing laboratory cut tobacco mixing device, preferably, the first conveyor belt and the second conveyor belt are both installed between the front box plate and the rear box plate, the first conveyor belt is located directly above the second conveyor belt, and a first driving motor for driving the first conveyor belt and a second driving motor for driving the second conveyor belt are installed on the outer wall of the rear box plate.

[0009] In the foregoing laboratory cut tobacco mixing device, preferably, the length of the second conveyor belt is greater than the length of the first conveyor belt.

[0010] In the aforementioned laboratory tobacco mixing device, preferably, the discharge structure includes a first guide plate, a second guide plate, and a discharge hopper. The first guide plate and the second guide plate are symmetrical and arranged in an inverted "V" shape. The discharge hopper is fixed on the inner wall of the front box plate. The lower part of the rear box plate has a discharge port. The discharge end of the discharge hopper passes through the discharge port and through the rear box plate. The upper end of the first guide plate is located on the left side of the second conveyor belt, and the lower end of the first guide plate is fixedly connected to the top of the left side plate of the discharge hopper. The upper end of the second guide plate is located on the right side of the second conveyor belt, and the lower end of the second guide plate is fixedly connected to the top of the right side plate of the discharge hopper. A second photoelectric switch is provided above the discharge port.

[0011] In the aforementioned laboratory tobacco mixing device, preferably, the feeding device includes a feeding pipe and a feeding hopper, the lower end of the feeding hopper is connected to the upper end of the feeding pipe, the feeding pipe is fixed on the front box plate and the rear box plate, a tobacco loosening roller is rotatably installed inside the feeding pipe, a third drive motor for driving the tobacco loosening roller is fixed on the front box plate, the top opening of the feeding hopper is rectangular, and a first photoelectric switch is provided on the side wall of the feeding hopper.

[0012] In the aforementioned laboratory tobacco mixing device, preferably, the elevator includes a left mounting plate, a right mounting plate, a tobacco lifting bucket, and a fourth drive motor. The left mounting plate and the right mounting plate are both fixedly connected to the rear box plate. The left mounting plate and the right mounting plate have the same structure. They are each provided with a first guide hole, a second guide hole, and a third guide hole. The first guide hole is located in front of the second guide hole, and the third guide hole is located behind the second guide hole. The length of the second guide hole is greater than the length of the third guide hole, and the length of the third guide hole is greater than the length of the first guide hole.

[0013] In the aforementioned laboratory tobacco mixing device, preferably, the front and top of the tobacco lifting hopper are open structures. A first guide post, a second guide post, and a third guide post are fixedly provided on the left and right side walls of the tobacco lifting hopper. The first guide post is inserted into and slidably connected to the first guide hole, the second guide post is inserted into and slidably connected to the second guide hole, and the third guide post is inserted into and slidably connected to the third guide hole. The width of the first guide hole is greater than the diameter of the first guide post, the width of the third guide hole is greater than the diameter of the third guide post, and the width of the second guide hole is equal to the diameter of the second guide post. A counterweight is fixedly provided at the rear end of the bottom surface of the tobacco lifting hopper.

[0014] In the aforementioned laboratory tobacco mixing device, preferably, the fourth drive motor is fixedly mounted on the lower end of the outer wall of the left mounting plate, a first driven pulley is rotatably mounted on the upper end of the outer wall of the left mounting plate, a second driven pulley is rotatably mounted on the upper end of the outer wall of the right mounting plate, a drive shaft is fixedly mounted on the output shaft of the fourth drive motor, a first driving pulley and a second driving pulley are fixedly mounted on the drive shaft, the drive shaft is rotatably connected to the left and right mounting plates, the first driving pulley is located on the left side of the left mounting plate, the second driving pulley is located on the right side of the right mounting plate, the first driven pulley is connected to the first driving pulley via a first belt, both ends of the first belt are fixedly connected to a first bushing, the first bushing is rotatably connected to a second guide post on the left side wall of the hopper; the second driven pulley is connected to the second driving pulley via a second belt, both ends of the second belt are fixedly connected to a second bushing, the second bushing is rotatably connected to a second guide post on the right side wall of the hopper.

[0015] In the aforementioned laboratory tobacco mixing device, preferably, a first proximity switch is provided at the bottom of the outer wall of the left mounting plate, a second proximity switch is provided at the upper part of the outer wall of the left mounting plate, and a PLC programmable controller is provided on the rear box plate. The first proximity switch, the second proximity switch, the first drive motor, the second drive motor, the third drive motor, the first photoelectric switch, the second photoelectric switch, and the fourth drive motor are all electrically connected to the PLC programmable controller.

[0016] Compared with the prior art, this utility model can make the tobacco shreds fall evenly without clumping by cooperating with the feeding device and the first conveyor belt. The cooperation between the first conveyor belt and the second conveyor belt can make the tobacco shreds stacked and mixed evenly. The elevator can lift the tobacco shreds and send them back to the feeding device, realizing multiple mixing and ensuring the uniformity of mixing. This utility model replaces manual operation, which is not only effective but also highly efficient. Attached Figure Description

[0017] Figure 1 This is an isometric view of the overall structure of this utility model;

[0018] Figure 2 This is an exploded view of the overall structure of this utility model;

[0019] Figure 3 This is an isometric view of the present invention after the front box panel has been removed;

[0020] Figure 4 This is an exploded view of the material feeding device of this utility model;

[0021] Figure 5 This is the first isometric drawing of the hoist of this utility model;

[0022] Figure 6 This is the second isometric view of the hoist of this utility model;

[0023] Figure 7 This is an isometric view of the tobacco lifting bucket of this utility model;

[0024] Figure 8 This is a right view of the mounting plate on the right side of this utility model.

[0025] Explanation of reference numerals in the attached drawings: Box 1, Front box panel 11, Rear box panel 12, Left box panel 13, Right box panel 14, Discharge port 15, First conveyor belt 2, First drive motor 21, Second conveyor belt 3, Second drive motor 31, Discharge device 4, Discharge pipe 41, Discharge hopper 42, Tobacco loosening roller 43, Third drive motor 44, Discharge structure 5, First guide plate 51, Second guide plate 52, Discharge hopper 53, Elevator 6, Left side mounting plate 61, First proximity switch 611, Second proximity switch 612, P LC programmable controller 613, sensing block 614, right side mounting plate 62, tobacco lifting hopper 63, first guide post 631, second guide post 632, third guide post 633, fourth drive motor 64, first guide hole 65, second guide hole 66, third guide hole 67, counterweight block 68, first driven pulley 69, drive shaft 70, first driving pulley 71, second driving pulley 72, second driven pulley 73, first bushing 74, second belt 75, second bushing 76, first belt 77. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] Embodiments of this utility model: such as Figures 1-8 As shown, a laboratory tobacco mixing device includes a housing 1, a first conveyor belt 2 is provided in the upper part of the housing 1, a second conveyor belt 3 is provided in the lower part of the housing 1, a material dropping device 4 is provided in the top of the housing 1, a material discharge structure 5 is provided in the bottom of the housing 1, and a hoist 6 is provided on one side of the housing 1.

[0028] The box 1 includes a front box panel 11, a rear box panel 12, a left box panel 13, and a right box panel 14. The front box panel 11, the rear box panel 12, the left box panel 13, and the right box panel 14 together form a rectangular box.

[0029] The front panel 11 and the rear panel 12 serve to shield the tobacco shreds, preventing them from falling off the sides during transport via the first conveyor belt 2 and the second conveyor belt 3. Both the first conveyor belt 2 and the second conveyor belt 3 are existing products and can be purchased directly.

[0030] The feeding device 4 is used to uniformly feed the tobacco shreds, prevent the tobacco shreds from clumping, and make the tobacco shreds fall evenly onto the first conveyor belt 2. The cooperation between the first conveyor belt 2 and the second conveyor belt 3 can realize the stacking of tobacco shreds and achieve the mixing of tobacco shreds. The discharge structure 5 is used to guide the tobacco shreds to the elevator 6. The elevator 6 is used to lift the tobacco shreds and send them back into the feeding device 4.

[0031] Specifically, the first conveyor belt 2 and the second conveyor belt 3 are both installed between the front box 11 and the rear box 12. The first conveyor belt 2 is located directly above the second conveyor belt 3. The outer wall of the rear box 12 is equipped with a first drive motor 21 for driving the first conveyor belt 2 and a second drive motor 31 for driving the second conveyor belt 3.

[0032] The length of the second conveyor belt 3 is greater than the length of the first conveyor belt 2. In this embodiment, the length of the second conveyor belt 3 is twice the length of the first conveyor belt 2. The first conveyor belt 2 transports the tobacco to the right.

[0033] Furthermore, the discharge structure 5 includes a first guide plate 51, a second guide plate 52, and a discharge hopper 53. The first guide plate 51 and the second guide plate 52 are symmetrically arranged in an inverted "V" shape. The discharge hopper 53 is fixed to the inner wall of the front box plate 11, and a discharge port 15 is provided at the lower part of the rear box plate 12. The discharge end of the discharge hopper 53 passes through the discharge port 15 and through the rear box plate 12. The upper end of the first guide plate 51 is located on the left side of the second conveyor belt 3, and the lower end of the first guide plate 51 is fixedly connected to the top of the left side plate of the discharge hopper 53. The upper end of the second guide plate 52 is located on the right side of the second conveyor belt 3, and the lower end of the second guide plate 52 is fixedly connected to the top of the right side plate of the discharge hopper 53. A second photoelectric switch (not shown in the figure) is provided above the discharge port 15. The second photoelectric switch is a commercially available product and can be purchased directly.

[0034] The first guide plate 51 is used to prevent tobacco from falling from the left side of the second conveyor belt 3, and the second guide plate 52 is used to catch the tobacco and allow it to slide down the second guide plate 52 into the discharge hopper 53.

[0035] The discharge hopper 53 is arranged at an angle, and the discharge end of the discharge hopper 53 is lower than the end connected to the front box plate 11 so that all the tobacco shreds can slide off.

[0036] Furthermore, the feeding device 4 includes a feeding pipe 41 and a feeding hopper 42. The lower end of the feeding hopper 42 is connected to the upper end of the feeding pipe 41. The feeding pipe 41 is fixed on the front box plate 11 and the rear box plate 12. A tobacco loosening roller 43 is rotatably installed inside the feeding pipe 41. A third drive motor 44 for driving the tobacco loosening roller 43 is fixed on the front box plate 11. The top opening of the feeding hopper 42 is rectangular. A first photoelectric switch (not shown in the figure) is provided on the side wall of the feeding hopper 42. The first photoelectric switch is a commercially available product and can be purchased directly. The first photoelectric switch is installed at the connection between the feeding hopper 42 and the feeding pipe 41.

[0037] The tobacco loosening roller 43 is a commercially available product that can be purchased directly. The lowest position of the tobacco loosening roller 43 is close to the surface of the first conveyor belt 2. This allows the clumps of tobacco that fall onto the first conveyor belt 2 to be hooked up by the rake nails on the tobacco loosening roller 43 until they are broken up, preventing clumps of tobacco from causing uneven mixing and ensuring the uniformity of the tobacco.

[0038] Furthermore, the elevator 6 includes a left mounting plate 61, a right mounting plate 62, a tobacco lifting hopper 63, and a fourth drive motor 64. Both the left mounting plate 61 and the right mounting plate 62 are fixedly connected to the rear box plate 12. The structures of the left mounting plate 61 and the right mounting plate 62 are exactly the same, and they are arranged symmetrically. Both the left mounting plate 61 and the right mounting plate 62 are provided with a first guide hole 65, a second guide hole 66, and a third guide hole 67. The first guide hole 65 is located in front of the second guide hole 66, and the third guide hole 67 is located behind the second guide hole 66. The length of the second guide hole 66 is greater than the length of the third guide hole 67, and the length of the third guide hole 67 is greater than the length of the first guide hole 65.

[0039] Specifically, the top of the second guide hole 66 is higher than the top of the first guide hole 65, the top of the third guide hole 67 is higher than the top of the second guide hole 66, the bottom of the second guide hole 66 is lower than the bottom of the first guide hole 65, and the bottom of the third guide hole 67 is lower than the bottom of the second guide hole 66.

[0040] Furthermore, the front and top of the tobacco lifting bucket 63 are open structures. A first guide post 631, a second guide post 632, and a third guide post 633 are fixedly installed on the left and right sides of the tobacco lifting bucket 63. The first guide post 631 is inserted into and slidably connected to the first guide hole 65; the second guide post 632 is inserted into and slidably connected to the second guide hole 66; and the third guide post 633 is inserted into and slidably connected to the third guide hole 67. The width of the first guide hole 65 is greater than the diameter of the first guide post 631, the width of the third guide hole 67 is greater than the diameter of the third guide post 633, and the width of the second guide hole 66 is equal to the diameter of the second guide post 632. A counterweight 68 is fixedly installed at the rear end of the bottom surface of the tobacco lifting bucket 63. A sensing block 614 is installed on the third guide post 633.

[0041] The width of the third guide hole 67 is greater than that of the third guide post 633, and the width of the first guide hole 65 is greater than the diameter of the first guide post 631. This design provides lateral space for the tobacco lifting bucket 63 to tilt. Making the width of the second guide hole 66 equal to the diameter of the second guide post 632 ensures smooth rising and falling of the tobacco lifting bucket 63. The counterweight 68 ensures that the tobacco lifting bucket 63 maintains a forward-high, backward-low position during rising and falling, preventing tobacco from spilling out. In this embodiment, the second guide post 632 is preferably located in the middle of the left and right side walls of the tobacco lifting bucket 63.

[0042] Furthermore, the fourth drive motor 64 is fixedly mounted on the lower end of the outer wall of the left mounting plate 61. A first driven pulley 69 is rotatably mounted on the upper end of the outer wall of the left mounting plate 61, and a second driven pulley 73 is rotatably mounted on the upper end of the outer wall of the right mounting plate 62. A drive shaft 70 is fixedly mounted on the output shaft of the fourth drive motor 64. A first driving pulley 71 and a second driving pulley 72 are fixedly mounted on the drive shaft 70. The drive shaft 70 is rotatably connected to the left mounting plate 61 and the right mounting plate 62. The first driving pulley 71 is located on the left side of the left mounting plate 61. The second driving pulley 72 is located on the right side of the right mounting plate 62. The first driven pulley 69 is connected to the first driving pulley 71 via the first belt 77. Both ends of the first belt 77 are fixedly connected to the first bushing 74. The first bushing 74 is rotatably connected to the second guide post 632 on the left side wall of the hopper 42. The second driven pulley 73 is connected to the second driving pulley 72 via the second belt 75. Both ends of the second belt 75 are fixedly connected to the second bushing 76. The second bushing 76 is rotatably connected to the second guide post 632 on the right side wall of the hopper 42.

[0043] A first proximity switch 611 is provided at the bottom of the outer wall of the left mounting plate 61, and a second proximity switch 612 is provided at the top of the outer wall of the left mounting plate 61. A PLC programmable controller 613 is provided on the rear box plate 12. The first proximity switch 611, the second proximity switch 612, the first drive motor 21, the second drive motor 31, the third drive motor 44, the first photoelectric switch, the second photoelectric switch and the fourth drive motor 64 are all electrically connected to the PLC programmable controller 613.

[0044] The working principle of this utility model is as follows: During operation, various weighed tobacco shreds are placed in a container and then poured into the feeding hopper 42. When the equipment is started, the first photoelectric switch detects the tobacco shreds and sends a signal to the PLC programmable controller 613. The PLC programmable controller 613 controls the third drive motor 44, the first drive motor 21, and the second drive motor 31 to work. The third drive motor 44 drives the tobacco shred loosening roller 43 to rotate. The tobacco shred loosening roller 43 breaks up the tobacco shreds. The broken up tobacco shreds fall onto the first conveyor belt 2. If the tobacco shreds that fall onto the first conveyor belt 2 are clumped together, the clumped tobacco shreds will be hooked up by the rake nails on the tobacco shred loosening roller 43 and broken up again.

[0045] The first conveyor belt 2 transports the tobacco to the right, where it falls onto the second conveyor belt 3. Under the control of the PLC programmable controller 613, the second drive motor 31 rotates reciprocally, causing the second conveyor belt 3 to move a certain distance to the right and then to the left, allowing the fallen tobacco to pile up and mix. The first photoelectric switch monitors the tobacco in the hopper 42 in real time. When no tobacco is detected, it sends a signal to the PLC programmable controller 613, indicating that all the tobacco has fallen onto the first conveyor belt 2. The PLC programmable controller 613 then controls the second drive motor 31 to move to the left and right. While rotating in one direction, the PLC programmable controller 613 controls the second photoelectric switch to work. The second conveyor belt 3 carries the tobacco to the right, and the tobacco falls onto the second guide plate 52. It slides down the second guide plate 52 onto the discharge hopper 53, and then slides down through the discharge hopper 53 into the tobacco lifting hopper 63 (at this time, the tobacco lifting hopper 63 is at the bottom). When the tobacco slides on the discharge hopper 53, it is detected by the second photoelectric switch. When the second photoelectric switch cannot detect the tobacco, it sends a signal to the PLC programmable controller 613, indicating that all the tobacco has entered the tobacco lifting hopper 63.

[0046] The PLC programmable controller 613 controls the operation of the fourth drive motor 64, the first proximity switch 611, and the second proximity switch 612. The fourth drive motor 64 drives the first drive pulley 71 and the second drive pulley 72 to rotate via the drive shaft 70. The first belt 77 and the second belt 75 begin to move, and at the same time, they lift the first bushing 74 and the second bushing 76 upward. Under the action of the counterweight 68, the tobacco lifting hopper 63 always maintains a front-high-rear-low state. The tobacco lifting hopper 63 is carried upward by the first bushing 74 and the second bushing 76. During the upward movement, the first guide post 631 and the first guide hole 65 are aligned. The third guide post 633 contacts and slides with the front side of the third guide hole 67. After rising to the upper end, the first guide post 631 first contacts the top of the first guide hole 65. At this time, the front end of the tobacco lifting hopper 63 is higher than the height of the dropping hopper 42. The second guide post 632 and the third guide post 633 continue to move upward. Since the first guide post 631 cannot continue to rise, the rear end of the tobacco lifting hopper 63 gradually rises until the third guide post 633 contacts the top of the third guide hole 67. The tobacco lifting hopper 63 becomes a state of high back and low front, and all the tobacco slides down and falls into the dropping hopper 42.

[0047] After the second proximity switch 612 detects the sensing block 614 on the third guide post 633, it sends a signal to the PLC programmable controller 613. The PLC programmable controller 613 controls the fourth drive motor 64 to rotate in the opposite direction. Under the action of the counterweight 68, the first guide post 631 only rotates and does not descend. The second guide post 632 and the third guide post 633 begin to move downwards until the third guide post 633 is lower than the first guide post 631 and contacts the front side of the third guide hole 67. The first guide post 631 then begins to move downwards. When the tobacco lifting hopper 63 reaches the lowest position, the first proximity switch 611 detects the sensing block 614 on the third guide post 633 and sends a signal to the PLC programmable controller 613. The PLC programmable controller 613 controls the fourth drive motor 64 to stop working, completing one work cycle.

[0048] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A laboratory tobacco mixing device, comprising a housing (1), characterized in that: The upper part of the box (1) is provided with a first conveyor belt (2), the lower part of the box (1) is provided with a second conveyor belt (3), the top of the box (1) is provided with a material dropping device (4), the bottom of the box (1) is provided with a material discharge structure (5), and a hoist (6) is provided on one side of the box (1).

2. The apparatus for mixing laboratory tobacco shreds according to claim 1, characterized in that: The box (1) includes a front box panel (11), a rear box panel (12), a left box panel (13) and a right box panel (14), which together form a rectangular box.

3. The apparatus for mixing laboratory tobacco shreds according to claim 2, characterized in that: The first conveyor belt (2) and the second conveyor belt (3) are both installed between the front box plate (11) and the rear box plate (12). The first conveyor belt (2) is located directly above the second conveyor belt (3). The outer wall of the rear box plate (12) is equipped with a first drive motor (21) for driving the first conveyor belt (2) and a second drive motor (31) for driving the second conveyor belt (3).

4. The apparatus for mixing laboratory tobacco shreds according to claim 3, characterized in that: The length of the second conveyor belt (3) is greater than the length of the first conveyor belt (2).

5. The apparatus for mixing laboratory tobacco shreds according to claim 4, characterized in that: The discharge structure (5) includes a first guide plate (51), a second guide plate (52), and a discharge hopper (53). The first guide plate (51) and the second guide plate (52) are symmetrical and arranged in an inverted "V" shape. The discharge hopper (53) is fixed on the inner wall of the front box plate (11). The lower part of the rear box plate (12) has a discharge port (15). The discharge end of the discharge hopper (53) passes through the discharge port (15) and through the rear box plate (12). The upper end of the first guide plate (51) is located on the left side of the second conveyor belt (3), the lower end of the first guide plate (51) is fixedly connected to the top of the left side plate of the discharge hopper (53), the upper end of the second guide plate (52) is located on the right side of the second conveyor belt (3), the lower end of the second guide plate (52) is fixedly connected to the top of the right side plate of the discharge hopper (53), and a second photoelectric switch is provided above the discharge port (15).

6. The apparatus for mixing laboratory tobacco according to claim 5, characterized in that: The feeding device (4) includes a feeding pipe (41) and a feeding hopper (42). The lower end of the feeding hopper (42) is connected to the upper end of the feeding pipe (41). The feeding pipe (41) is fixed on the front box plate (11) and the rear box plate (12). A tobacco loosening roller (43) is rotatably installed inside the feeding pipe (41). A third drive motor (44) for driving the tobacco loosening roller (43) is fixed on the front box plate (11). The top opening of the feeding hopper (42) is rectangular. A first photoelectric switch is provided on the side wall of the feeding hopper (42).

7. The apparatus for mixing laboratory tobacco shreds according to claim 6, characterized in that: The elevator (6) includes a left mounting plate (61), a right mounting plate (62), a tobacco lifting bucket (63), and a fourth drive motor (64). The left mounting plate (61) and the right mounting plate (62) are both fixedly connected to the rear box plate (12). The left mounting plate (61) and the right mounting plate (62) have the same structure. They are both provided with a first guide hole (65), a second guide hole (66), and a third guide hole (67). The first guide hole (65) is located in front of the second guide hole (66), and the third guide hole (67) is located behind the second guide hole (66). The length of the second guide hole (66) is greater than the length of the third guide hole (67), and the length of the third guide hole (67) is greater than the length of the first guide hole (65).

8. The apparatus for mixing laboratory tobacco according to claim 7, characterized in that: The front and top of the tobacco lifting bucket (63) are open structures. A first guide post (631), a second guide post (632), and a third guide post (633) are fixed on the left and right sides of the tobacco lifting bucket (63). The first guide post (631) is inserted into and slidably connected to the first guide hole (65). The second guide post (632) is inserted into and slidably connected to the second guide hole (66). The third guide post (633) is inserted into and slidably connected to the third guide hole (67). The width of the first guide hole (65) is greater than the diameter of the first guide post (631). The width of the third guide hole (67) is greater than the diameter of the third guide post (633). The width of the second guide hole (66) is equal to the diameter of the second guide post (632). A counterweight (68) is fixed at the rear end of the bottom surface of the tobacco lifting bucket (63).

9. The apparatus for mixing laboratory tobacco shreds according to claim 8, characterized in that: The fourth drive motor (64) is fixedly mounted on the lower end of the outer wall of the left mounting plate (61). A first driven pulley (69) is rotatably mounted on the upper end of the outer wall of the left mounting plate (61). A second driven pulley (73) is rotatably mounted on the upper end of the outer wall of the right mounting plate (62). A drive shaft (70) is fixedly mounted on the output shaft of the fourth drive motor (64). A first driving pulley (71) and a second driving pulley (72) are fixedly mounted on the drive shaft (70). The drive shaft (70) is rotatably connected to the left mounting plate (61) and the right mounting plate (62). The first driving pulley (71) is located on the left side of the left mounting plate (61). The second driving pulley (73) is located on the left side of the left mounting plate (61). The driving pulley (72) is located on the right side of the right mounting plate (62). The first driven pulley (69) is connected to the first driving pulley (71) via the first belt (77). The two ends of the first belt (77) are fixedly connected to the first bushing (74). The first bushing (74) is rotatably connected to the second guide post (632) on the left side wall of the hopper (42). The second driven pulley (73) is connected to the second driving pulley (72) via the second belt (75). The two ends of the second belt (75) are fixedly connected to the second bushing (76). The second bushing (76) is rotatably connected to the second guide post (632) on the right side wall of the hopper (42).

10. The apparatus for mixing laboratory tobacco according to claim 9, characterized in that: A first proximity switch (611) is provided at the bottom of the outer wall of the left mounting plate (61), and a second proximity switch (612) is provided at the top of the outer wall of the left mounting plate (61). A PLC programmable controller (613) is provided on the rear box plate (12). The first proximity switch (611), the second proximity switch (612), the first drive motor (21), the second drive motor (31), the third drive motor (44), the first photoelectric switch, the second photoelectric switch and the fourth drive motor (64) are all electrically connected to the PLC programmable controller (613).

Images