Cigarette sampling arm field adjustment device

Abstract

The utility model relates to cigarette production detection technical field especially relates to a cigarette sampling arm on -the -spot adjusting device, including cigarette conveying assembly and sampling arm adjusting assembly, cigarette conveying assembly includes first transverse pneumatic cylinder, longitudinal pneumatic cylinder and second transverse pneumatic cylinder, and the movement of first pipe bowl, second pipe bowl, third pipe bowl is controlled in proper order respectively, sampling arm adjusting assembly includes first vertical board and installs the lifting mechanism on it, and the lifting mechanism is by motor drive screw rotation, drives and sampling arm fixed arm support along the guide rail up and down movement, and the screw end is equipped with anti -rotation bearing seat for manual locking and restricts sampling arm position deviation.

Description

Technical Field

[0001] This utility model relates to the field of cigarette production and testing technology, and in particular to a field adjustment device for a cigarette sampling arm. Background Technology

[0002] In the cigarette manufacturing industry, to ensure product quality and consistency, companies are constantly pursuing the standardization and modernization of their production processes. To this end, many cigarette manufacturers are introducing highly automated production lines and integrating online testing equipment, such as comprehensive testing platforms, to monitor key technical indicators of cigarettes in real time (e.g., weight, circumference, draw resistance, ventilation, etc.). This approach not only improves production efficiency and product quality but also meets the industry's demand for high-standard production processes.

[0003] However, since cigarette production lines and integrated testing stations are usually provided by different suppliers, and one integrated testing station may serve multiple production lines with different specifications of cigarettes, the integrated testing station needs to have good adaptability and flexibility. The integrated testing station is usually installed close to the cigarette production line, and uses a sampling arm to grab cigarettes from the "bridge" of the production line for internal testing.

[0004] In practical applications, the height of the "bridge" varies depending on the production line design, posing a challenge to the use of the integrated testing bench. The current practice is to dispatch professionals to measure the "bridge" height of a specific production line before manufacturing the integrated testing bench, in order to customize a suitable cigarette sampling arm height. This approach has significant limitations: once the "bridge" height of the production line changes, or if the integrated testing bench needs to be transferred to another production line with a different "bridge" height, the customized sampling arm cannot be adjusted on-site, causing the integrated testing bench to malfunction and fail to perform its sampling tasks correctly. Utility Model Content

[0005] This utility model provides a field adjustment device for cigarette sampling arms, which solves the problem that the height of cigarette sampling arms in the prior art cannot be flexibly adjusted on-site, making it difficult for the integrated testing platform to adapt to the sampling difficulties caused by the differences or changes in the "bridge" height of different production lines. It enables the integrated testing platform to quickly and accurately adjust the height of the sampling arms on different cigarette production lines, thereby improving its applicability and ease of operation.

[0006] This utility model provides a field adjustment device for a cigarette sampling arm, including a cigarette transport assembly and a sampling arm adjustment assembly. The cigarette transport assembly includes a first transverse cylinder, a longitudinal cylinder, and a second transverse cylinder, which sequentially control the movement of a first pipe, a second pipe, and a third pipe, respectively. The sampling arm adjustment assembly includes a first vertical plate and a lifting mechanism mounted thereon. The lifting mechanism is driven by a motor to rotate a lead screw, which drives an arm support fixed to the sampling arm to move up and down along a guide rail. The end of the lead screw is provided with an anti-rotation bearing seat for manual locking to limit the positional deviation of the sampling arm.

[0007] According to one embodiment of the present invention, the first pipe and the third pipe have the same grid structure, and the first pipe and the third pipe have a complementary grid structure.

[0008] According to one embodiment of the present invention, during the longitudinal movement of the second pipe, its grid strips are misaligned with the grid strips of the first pipe and the third pipe; the misalignment specifically means that when the second pipe moves upward or downward, its grid strips always pass through the grid gaps of the first pipe and the third pipe.

[0009] According to one embodiment of the present invention, the first transverse cylinder is horizontally fixed on the integrated test bench, and the first pipe is connected to the piston rod of the first transverse cylinder through a horizontal slider.

[0010] According to one embodiment of the present invention, the longitudinal cylinder is vertically installed on one side of the second vertical plate, the second vertical plate is disposed on the integrated test platform, and the second pipe is connected to the piston rod of the longitudinal cylinder through a slider; the second transverse cylinder is horizontally built into the sampling arm cavity, and the third pipe is connected to the piston rod of the second transverse cylinder through a slider.

[0011] According to one embodiment of the present invention, the lifting mechanism includes guide rails symmetrically distributed on both sides of the first vertical plate, and a vertical slider on the guide rail is rigidly connected to the arm support; the lead screw vertically passes through the arm support and is driven by a threaded pair; the motor is coaxially connected to the lead screw through a coupling.

[0012] According to one embodiment of the present invention, the two ends of the lead screw are respectively engaged with the first vertical plate through an upper bearing seat and an anti-rotation bearing seat; the anti-rotation bearing seat is provided with a locking handle, and a friction plate is provided inside to lock the outer surface of the lead screw in the locked state.

[0013] According to one embodiment of the present invention, the arm support is a U-shaped frame structure, with its open end rigidly fixed to the sampling arm by bolts, and its closed end having a threaded through hole that mates with the lead screw.

[0014] According to one embodiment of the present invention, a cigarette sampling claw is provided at the bottom of the front end of the sampling arm, and the gripping plane of the cigarette sampling claw is at the same horizontal height as the grid receiving surface of the third pipe.

[0015] According to one embodiment of the present invention, the first vertical plate is provided with a mounting wing plate, and the mounting wing plate has a waist-shaped hole, which is adjustablely fixed to the side wall mounting surface of the integrated test bench by bolts.

[0016] This utility model provides a field adjustment device for a cigarette sampling arm. Through a lifting mechanism driven by a motor-driven screw, and in conjunction with a guide rail and arm support structure, it enables continuous adjustment of the sampling arm height. Simultaneously, an anti-rotation bearing seat is installed at the end of the screw, and the adjusted sampling arm position is fixed by manual locking to prevent displacement or slippage during operation. This structural design not only improves the stability and reliability of the adjustment device but also allows the integrated testing platform to adapt to "bridge" positions of different heights, meeting the sampling needs of multi-specification cigarette production lines. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the on-site adjustment device for the cigarette sampling arm provided by this utility model.

[0019] Figure 2 This is a schematic diagram of the misaligned configuration of the first and second pipes of the on-site adjustment device for the cigarette sampling arm provided by this utility model.

[0020] Figure label:

[0021] 11. First transverse cylinder; 12. First pipe; 21. Second vertical plate; 22. Longitudinal cylinder; 23. Second pipe; 31. Sampling arm; 32. Second transverse cylinder; 33. Third pipe; 41. First vertical plate; 42. Motor; 44. Coupling; 45. Upper bearing seat; 46. Arm support; 47. Guide rail; 48. Lead screw; 49. Anti-rotation bearing seat; 51. Comprehensive testing platform; 52. Cigarette sampling claw. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The cigarette sampling arm adjustment device provided by this utility model allows for on-site adjustment of the sampling arm height to adapt to the height differences of the "bridge" on different production lines without the need for prior manual measurement, significantly improving the equipment's applicability and flexibility. Furthermore, it enables rapid installation and adjustment when the integrated testing platform is adapted to production lines producing other specifications of cigarettes with varying "bridge" heights. During adjustment, there is no need to modify the cigarette conveying structure or logic, making it simple to operate, highly adaptable, and perfectly suited to the actual needs of cigarette production lines.

[0025] The following is combined with Figures 1-2 This invention describes the specific implementation method of the on-site adjustment device for the cigarette sampling arm.

[0026] like Figure 1As shown, this utility model provides a field adjustment device for a cigarette sampling arm 31, including a cigarette transport assembly and a sampling arm 31 adjustment assembly. The cigarette transport assembly includes a first transverse cylinder 11, a longitudinal cylinder 22, and a second transverse cylinder 32, which sequentially control the movement of a first pipe 12, a second pipe 23, and a third pipe 33, respectively. The sampling arm 31 adjustment assembly includes a first vertical plate 41 and a lifting mechanism mounted thereon. The lifting mechanism is driven by a motor 42 to rotate a lead screw 48, which in turn drives an arm support 46 fixed to the sampling arm 31 to move up and down along a guide rail 47. The end of the lead screw 48 is provided with an anti-rotation bearing seat 49, which is used to manually lock and limit the positional deviation of the sampling arm 31. This technical solution, by setting up a cigarette transport assembly and a sampling arm 31 adjustment assembly, realizes the orderly transfer of cigarettes between different workstations and the flexible field adjustment of the height of the sampling arm 31.

[0027] Specifically, the cigarette transport assembly includes a first transverse cylinder 11, a longitudinal cylinder 22, and a second transverse cylinder 32, which are used to drive the first pipe 12, the second pipe 23, and the third pipe 33 to move laterally, longitudinally, and horizontally, respectively. The three pipes adopt a grid structure design, with the first pipe 12 and the third pipe 33 having the same structure, while the second pipe 23 has a complementary grid structure. The longitudinal cylinder 22 drives the second pipe 23 to move up and down, and its grid bars pass sequentially through the first pipe 12 and the third pipe 33, achieving interference-free cigarette transport. The sampling arm 31 adjustment assembly includes a first vertical plate 41 and a lifting mechanism mounted on it. The lifting mechanism is driven by a motor 42 to rotate a lead screw 48, which drives the arm support 46, rigidly connected to the sampling arm 31, to move up and down along a guide rail 47, thereby adjusting the overall height of the sampling arm 31. An anti-rotation bearing seat 49 is provided at the end of the lead screw 48. The seat may contain friction plates and a locking handle, which can be manually locked after the height adjustment is completed to prevent the sampling arm 31 from shifting due to its own weight or vibration, and to ensure the stability of the sampling arm 31 during operation.

[0028] In use, the individual pipes in the aforementioned cigarette transport assembly are linked and controlled by cylinders, and continuously transferred to meet the sampling requirements at the "bridge" of the production line. Preferably, the specific workflow is as follows: the first pipe 12 is in the initial position; the third pipe 33 receives the cigarette grabbed by the sampling claw from the "bridge" of the production line and moves to the left; then the second pipe 23 moves upward, passing through the grid gaps of the third pipe 33, receiving the cigarette and lifting it to a high position; the first pipe 12 moves to the right to the designated position, and the second pipe 23 moves downward, transferring the cigarette to the first pipe 12; the first pipe 12 then sends the cigarette to the integrated testing platform 51 for testing. The entire process requires no manual intervention, and the cigarette is transferred smoothly and efficiently between the pipes without collisions or jamming. Meanwhile, when the height of the production line "bridge" changes or the integrated testing platform 51 needs to be transferred to another production line, the operator can loosen the locking handle of the anti-rotation bearing seat 49, start the motor 42 to drive the lead screw 48 to rotate, and drive the arm support 46 and sampling arm 31 to rise or fall to the appropriate height. After the adjustment is completed, the anti-rotation bearing seat 49 can be manually locked to complete the on-site adjustment of the height of the sampling arm 31. The entire adjustment process does not require disassembling the equipment or changing the cigarette conveying structure. The operation is simple and the response is rapid, greatly improving the adaptability and on-site availability of the equipment.

[0029] Furthermore, this invention can optimize the design of the lifting mechanism and the arm support 46 structure to improve adjustment accuracy and structural stability. Specifically, the guide rails 47 in the lifting mechanism can be symmetrically distributed on both sides of the first vertical plate 41. The arm support 46 cooperates with the guide rails 47 through a slider to form a stable guiding structure, ensuring that the arm support 46 maintains verticality and rigidity during up-and-down movement. The arm support 46 adopts a U-shaped frame structure, with a threaded through hole at its closed end that cooperates with the lead screw 48, and the open end is rigidly connected to the sampling arm 31 through bolts, ensuring that the sampling arm 31 and the arm support 46 move synchronously during height adjustment, avoiding height errors caused by loose connections. In addition, both ends of the lead screw 48 can be connected to the first vertical plate 41 through the upper bearing seat 45 and the anti-rotation bearing seat 49, respectively, which not only improves the support rigidity of the lead screw 48, but also effectively prevents its swaying during rotation. The anti-rotation bearing housing 49 has an adjustable friction plate inside. By rotating the locking handle, the outer surface of the lead screw 48 can be clamped and controlled, thereby mechanically locking the position of the sampling arm 31. This prevents the sampling arm 31 from sliding due to power failure of the motor 42 or accidental vibration, improving the safety and reliability of the equipment operation. Furthermore, the first vertical plate 41 can be equipped with a mounting wing plate with a waist-shaped hole. The wing plate is adjustablely fixed to the side wall mounting surface of the integrated test bench 51 by bolts, so that the entire sampling arm 31 adjustment assembly has a certain position adjustment capability during installation, adapting to the installation requirements of different models of integrated test benches 51.

[0030] like Figure 1 and Figure 2 As shown, according to the on-site adjustment device for a cigarette sampling arm 31 of this utility model, the first pipe 12 and the third pipe 33 have the same grid structure, and the first pipe 12 has a complementary grid structure to the second pipe 23. Specifically, the first pipe 12 and the third pipe 33 both adopt a grid structure with the same spacing and arrangement to carry a single cigarette and achieve lateral conveying; the second pipe 23 adopts a complementary grid structure, and the gaps between its grid bars correspond to the positions of the grid bars in the first pipe 12 and the third pipe 33. This structural design allows the second pipe 23 to pass through the grid gaps of the first pipe 12 and the third pipe 33 during longitudinal movement, achieving a smooth handover of cigarettes between different workstations, avoiding jamming or damage to cigarettes during transport, and improving the continuity and reliability of cigarette conveying.

[0031] Furthermore, according to the on-site adjustment device for the cigarette sampling arm 31 of this utility model, during the longitudinal movement of the second pipe 23, its grid strips are misaligned with the grid strips of the first pipe 12 and the third pipe 33. Specifically, when the second pipe 23 moves upward or downward, its grid strips always pass through the grid gaps between the first pipe 12 and the third pipe 33. In other words, the grid strips of the second pipe 23 are arranged vertically to correspond one-to-one with the grid gaps of the first pipe 12 and the third pipe 33, so that during the up-and-down movement, its grid strips can be precisely inserted into the gaps between the first pipe 12 and the third pipe 33, achieving interference-free cigarette transfer. This misaligned configuration ensures the smooth transfer of cigarettes between different pipes, avoiding tilting, falling, or damage to cigarettes due to structural interference. It also helps simplify the control system logic and improve the overall stability and efficiency of the equipment operation.

[0032] According to the on-site adjustment device for a cigarette sampling arm 31 of this utility model, a first transverse cylinder 11 is horizontally fixed to a comprehensive testing platform 51, and a first pipe 12 is connected to the piston rod of the first transverse cylinder 11 via a horizontal slider. Specifically, the first transverse cylinder 11 serves as a driving component for transverse cigarette transport. Its cylinder body is firmly installed on a fixed bracket of the comprehensive testing platform 51, and its piston rod extends horizontally and is connected to the first pipe 12 via a slider. The bottom of the first pipe 12 is provided with a groove structure that matches the guide rail 47 of the first transverse cylinder 11, enabling it to move smoothly left and right along the guide rail 47 under the drive of the piston rod.

[0033] Furthermore, according to the on-site adjustment device for the cigarette sampling arm 31 of this utility model, a longitudinal cylinder 22 is vertically installed on one side of a second vertical plate 21, which is set on a comprehensive testing platform 51. A second pipe 23 is connected to the piston rod of the longitudinal cylinder 22 via a slider. A second transverse cylinder 32 is horizontally built into the cavity of the sampling arm 31, and a third pipe 33 is connected to the piston rod of the second transverse cylinder 32 via a slider. The longitudinal cylinder 22 is vertically installed on one side of the second vertical plate 21, and its piston rod moves in the vertical direction. The second pipe 23 is connected to it via a slider, enabling precise vertical movement under the drive of the longitudinal cylinder 22. The second vertical plate 21 serves as the mounting base for the longitudinal cylinder 22 and is fixed to the side structure of the comprehensive testing platform 51, ensuring the rigidity and stability of the entire longitudinal conveying mechanism. During the vertical movement of the second pipe 23, its complementary grid structure can smoothly pass through the grid gaps between the first pipe 12 and the third pipe 33, achieving efficient cigarette transfer. Meanwhile, the second transverse cylinder 32 is horizontally positioned in the mounting cavity inside the sampling arm 31, with a compact structure that does not affect the overall shape and movement path of the sampling arm 31. The third pipe 33 is connected to the piston rod of the second transverse cylinder 32 via a slider, and can move left and right horizontally under the drive of the cylinder to receive the cigarette gripped by the sampling claw and transport it to the position of the second pipe 23.

[0034] According to the present invention, a field adjustment device for a cigarette sampling arm 31 includes a lifting mechanism comprising guide rails 47 symmetrically distributed on both sides of a first vertical plate 41, with vertical sliders on the guide rails 47 rigidly connected to an arm support 46; a lead screw 48 vertically penetrates the arm support 46 and is driven by a threaded pair; and a motor 42 is coaxially connected to the lead screw 48 via a coupling 44. The lifting mechanism employs a double guide rail 47 guiding structure, with two guide rails 47 symmetrically arranged on both sides of the first vertical plate 41 to ensure good guidance and stability of the arm support 46 during lifting. The arm support 46 engages with the guide rails 47 via sliders on both sides and is rigidly connected to the vertical sliders on the guide rails 47, forming a stable movable support structure. The lead screw 48 is vertically arranged and penetrates the middle of the arm support 46, driving the arm support 46 up and down via a threaded pair. The motor 42 is coaxially connected to the lead screw 48 via a coupling 44, and under the drive of the motor 42, the lead screw 48 rotates, thereby controlling the arm support 46 to smoothly lift and lower along the guide rails 47.

[0035] Furthermore, according to the on-site adjustment device for the cigarette sampling arm 31 of this utility model, the two ends of the lead screw 48 are respectively engaged with the first vertical plate 41 through an upper bearing seat 45 and an anti-rotation bearing seat 49; the anti-rotation bearing seat 49 is provided with a locking handle, and its interior is provided with friction plates to lock the outer surface of the lead screw 48 in the locked state. One end of the lead screw 48 is fixed to the first vertical plate 41 through the upper bearing seat 45 to ensure its axial stability and radial support force during rotation; the other end is connected to the first vertical plate 41 through the anti-rotation bearing seat 49, which is provided with a friction plate assembly and a locking handle. When the sampling arm 31 is adjusted to the target height, the operator can rotate the locking handle to make the friction plates press tightly against the outer surface of the lead screw 48, thereby locking the lead screw 48 and preventing it from rotating or displacing due to vibration or gravity. This locking structure enhances the safety and reliability of equipment operation while ensuring adjustment accuracy.

[0036] According to the present invention, a field adjustment device for a cigarette sampling arm 31 includes an arm support 46 with a U-shaped frame structure. The open end of the arm support 46 is rigidly fixed to the sampling arm 31 by bolts, and the closed end has a threaded through hole that mates with a lead screw 48. Specifically, the arm support 46 adopts a U-shaped frame structure, which has good structural rigidity and a lightweight design. Its open end is rigidly connected to the sampling arm 31 by multiple high-strength bolts, ensuring synchronous movement of the arm support 46 and the sampling arm 31 during lifting and lowering, avoiding height deviation caused by loose connections. The closed end has a threaded through hole that matches the lead screw 48. This through hole mates with the threaded pair on the lead screw 48 to achieve precise lifting and lowering control driven by the motor 42. This structure not only facilitates installation and disassembly but also improves the transmission accuracy and operational stability of the lifting system, ensuring accurate positioning of the sampling arm 31 at different heights.

[0037] Furthermore, according to the on-site adjustment device for a cigarette sampling arm 31 of this utility model, a cigarette sampling claw 52 is provided at the bottom front end of the sampling arm 31. The gripping plane of the cigarette sampling claw 52 is at the same horizontal height as the grid receiving surface of the third pipe 33. The cigarette sampling claw 52 is located at the bottom front end of the sampling arm 31 and is used to grab cigarettes from the "bridge" of the production line. When the sampling arm 31 is in the initial position, its gripping plane is kept at the same horizontal height as the grid receiving surface of the third pipe 33, ensuring that the cigarette can fall smoothly into the grid groove of the third pipe 33 after being grabbed, and the smooth handover of the cigarette can be achieved without additional lifting or adjustment.

[0038] Furthermore, according to the on-site adjustment device for the cigarette sampling arm 31 of this utility model, the first vertical plate 41 is provided with mounting wing plates, each with a slotted hole, and is adjustablely fixed to the side wall mounting surface of the integrated testing platform 51 by bolts. The first vertical plate 41 serves as the main support structure for the adjustment assembly of the sampling arm 31, and its side is provided with at least two mounting wing plates, each with a slotted hole, allowing for fine-tuning of the first vertical plate 41 in the horizontal direction during installation. By bolting through the slotted holes and fastening it to the side wall mounting surface of the integrated testing platform 51, flexible installation and positioning of the entire adjustment device on different models of integrated testing platforms 51 can be achieved. This structure not only improves the versatility and adaptability of the device but also facilitates on-site installation and debugging, ensuring precise alignment of the sampling arm 31 adjustment assembly with the cigarette conveying path.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "method," "specific method," or "some methods," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or method is included in at least one embodiment or method of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or method. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or methods. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or methods described in this specification, as well as the features of different embodiments or methods.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A field adjustment device for a cigarette sampling arm, characterized in that, Includes cigarette delivery assembly and sampling arm adjustment assembly; The cigarette delivery assembly includes a first transverse cylinder (11), a longitudinal cylinder (22) and a second transverse cylinder (32), which sequentially control the movement of the first pipe (12), the second pipe (23) and the third pipe (33); The sampling arm adjustment assembly includes a first vertical plate (41) and a lifting mechanism mounted thereon. The lifting mechanism is driven by a motor (42) to rotate a lead screw (48), which drives the arm support (46) fixed to the sampling arm (31) to move up and down along the guide rail (47). The end of the lead screw (48) is provided with an anti-rotation bearing seat (49) for manual locking to limit the positional deviation of the sampling arm (31).

2. The on-site adjustment device for the cigarette sampling arm according to claim 1, characterized in that, The first pipe (12) and the third pipe (33) have the same grid structure, and the third pipe (33) has a complementary grid structure to the second pipe (23).

3. The on-site adjustment device for the cigarette sampling arm according to claim 2, characterized in that, During the longitudinal movement of the second pipe (23), its grid strips are misaligned with those of the first pipe (12) and the third pipe (33); The misalignment configuration is specifically as follows: when the second pipe (23) moves up or down, its grid strips always pass through the grid gap between the first pipe (12) and the third pipe (33).

4. The on-site adjustment device for the cigarette sampling arm according to claim 1, characterized in that, The first transverse cylinder (11) is horizontally fixed on the integrated test bench (51), and the first pipe (12) is connected to the piston rod of the first transverse cylinder (11) through a horizontal slider.

5. The on-site adjustment device for the cigarette sampling arm according to claim 4, characterized in that, The longitudinal cylinder (22) is vertically installed on one side of the second vertical plate (21), the second vertical plate (21) is set on the comprehensive test platform (51), and the second pipe (23) is connected to the piston rod of the longitudinal cylinder (22) through a slider; The second transverse cylinder (32) is horizontally built into the cavity of the sampling arm (31), and the third pipe (33) is connected to the piston rod of the second transverse cylinder (32) through a slider.

6. The on-site adjustment device for the cigarette sampling arm according to claim 1, characterized in that, The lifting mechanism includes guide rails (47) symmetrically distributed on both sides of the first vertical plate (41), and the vertical slider on the guide rails (47) is rigidly connected to the arm support (46); The lead screw (48) passes vertically through the arm support (46) and is driven by a threaded pair; The motor (42) is coaxially connected to the lead screw (48) via a coupling (44).

7. The on-site adjustment device for the cigarette sampling arm according to claim 6, characterized in that, The two ends of the lead screw (48) are respectively connected to the first vertical plate (41) through the upper bearing seat (45) and the anti-rotation bearing seat (49); The anti-rotation bearing housing (49) is provided with a locking handle, and a friction plate is provided inside to lock the outer surface of the lead screw (48) in the locked state.

8. The on-site adjustment device for the cigarette sampling arm according to any one of claims 1 to 7, characterized in that, The arm support (46) is a U-shaped frame structure. Its open end is rigidly fixed to the sampling arm (31) by bolts, and its closed end is provided with a threaded through hole that cooperates with the lead screw (48).

9. The on-site adjustment device for the cigarette sampling arm according to any one of claims 1 to 7, characterized in that, The sampling arm (31) is provided with a cigarette sampling claw (52) at the bottom of its front end. The gripping plane of the cigarette sampling claw (52) is at the same horizontal level as the grid receiving surface of the third pipe (33).

10. The on-site adjustment device for the cigarette sampling arm according to any one of claims 1 to 7, characterized in that, The first vertical plate (41) is provided with a mounting wing plate, which has a waist-shaped hole and is adjustablely fixed to the side wall mounting surface of the integrated test bench (51) by bolts.

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