Cigarette clamping device

Abstract

The present invention discloses a cigarette clamping device, comprising a core barrel and a clamping member, wherein both ends of the core barrel are respectively provided with push rings that slide along the axial direction of the core barrel, a telescopic cavity that is connected to the inner cavity of the core barrel is provided on the core barrel between the two push rings, and the clamping member is arranged in the telescopic cavity, and both ends of the clamping member are rotatably connected with rotating pieces, and the two rotating pieces are rotatably connected to the push rings on their respective sides; when the two push rings slide toward each other on the core barrel, they push the clamping member to move toward the inner cavity, thereby clamping the sample to be tested located in the inner cavity. The present invention can flexibly adapt to the specifications of cigarettes for clamping, and meet the adaptive clamping and rotation requirements of cigarettes of various specifications.

Description

Technical Field

[0001] The present invention belongs to the technical field of cigarette detection, and in particular relates to a cigarette clamping device. Background Art

[0002] During tobacco production and testing, cigarettes produced by cigarette-making machines require physical property testing. During this testing process, the cigarettes are typically clamped and secured. Testing equipment is then used to measure the cigarettes and determine their physical properties.

[0003] The existing cigarette clamping and fixing devices mainly include the following methods:

[0004] 1. Use rollers, pressure plates, or other elastic components to clamp the cigarette and secure it in the testing position.

[0005] 2. Use negative pressure air to attract the cigarette to the detection position;

[0006] 3. Use airbag structure to fix cigarettes;

[0007] However, the existing clamping device also has the following problems:

[0008] 1. The clamping size is fixed. When the cigarette specifications need to be changed during the inspection process, personnel have to manually replace them. The clamp replacement steps are cumbersome and the degree of automation is low. It cannot automatically adjust according to the cigarette specifications.

[0009] 2. During negative pressure adsorption, when disturbed by fluctuations in gas source pressure, its fixing effect and position change greatly, and the positioning accuracy is poor.

[0010] 3. The airbag mechanism needs to consider the gas sealing problem, and the rubber skin is easily damaged. It needs to be replaced manually after a period of use, which increases the workload. The replacement effect is greatly affected by human factors. Summary of the Invention

[0011] The purpose of the present invention is to provide a cigarette clamping device that can flexibly adapt to the specifications of cigarettes for clamping and meet the adaptive clamping and rotation requirements of cigarettes of various specifications.

[0012] The technical solution adopted by the present invention to solve its technical problems is to propose a cigarette holding device, including a core barrel and a clamping member, wherein both ends of the core barrel are respectively provided with push rings that slide along the axial direction of the core barrel, and the core barrel between the two push rings is provided with a telescopic cavity that is connected to the inner cavity of the core barrel, and the clamping member is arranged in the telescopic cavity, and the two ends of the clamping member are respectively rotatably connected with rotating plates, and the two rotating plates are respectively rotatably connected to the push rings on their respective sides; when the two push rings slide toward each other on the core barrel, they push the clamping member to move toward the direction of the inner cavity, thereby clamping the sample to be tested located in the inner cavity.

[0013] Furthermore, when the two push rings slide in opposite directions on the core barrel, the clamping member is pulled to move in a direction away from the inner cavity, thereby releasing the clamped sample to be tested.

[0014] Furthermore, a plurality of the telescopic cavities are evenly opened on the circumference of the core barrel, and the clamping member is placed in each of the telescopic cavities, so that the plurality of clamping members can evenly clamp the sample to be tested from multiple directions.

[0015] Furthermore, it also includes a clamping tube, and the outer ring walls of the two push rings are respectively provided with threads, and the threads on the two push rings are in opposite directions, and the two ends of the inner ring wall of the clamping tube are provided with matching threads corresponding to the threads on the two push rings, and the clamping tube is threadedly connected with the two push rings and is sleeved on the core tube; so that when the clamping tube and the core tube generate relative rotation, the two push rings slide toward each other or in the opposite direction.

[0016] Furthermore, both ends of the core tube are provided with sliding grooves, and sliding ribs are provided on the inner ring wall of the push ring corresponding to the sliding grooves, so that the two push rings can slide back and forth along the axial direction of the core tube; the two push rings are respectively screwed to the clamping tube from both ends of the core tube.

[0017] Furthermore, the length of the matching thread on the clamping cylinder is greater than the length of the thread on the push ring.

[0018] Furthermore, a rotating part and an external drive part are provided on the outer ring wall of the clamping cylinder. The rotating part is rotationally connected to the external support structure, and the external drive part is fixed to the clamping cylinder. The external drive part drives the clamping cylinder and the core cylinder to rotate synchronously in the rotating part.

[0019] Furthermore, it also includes a docking tube for transporting the sample to be tested into the inner cavity of the core tube, the docking tube is fixed to the clamping tail end of the core tube, and the inner cavity of the docking tube is coaxially connected with the inner cavity of the core tube.

[0020] Furthermore, it also includes a driving part, which is installed and fixed based on the clamping cylinder. A gear ring is provided on the outer wall of the docking cylinder, and the output end of the driving part is transmission-connected to the gear ring.

[0021] Furthermore, the external driving portion locks the clamping cylinder, so that the driving portion drives the core cylinder and the clamping cylinder to rotate relative to each other.

[0022] Preferably, the driving part includes a driving motor, a transmission gear plate, and a connecting tube. The front port of the connecting tube is docked with the rear end of the clamping tube and is sleeved on the connection between the docking tube and the core tube. The rear port of the connecting tube is fixed with a mounting disk, and the driving motor is fixed to the front side of the mounting disk. The output shaft (i.e., the output end) of the driving motor passes through the mounting disk to its back side and is connected to the transmission gear plate located on the back side of the mounting disk. The transmission gear plate is engaged with the gear ring on the docking tube.

[0023] Preferably, the gear ring is located in the connecting cylinder, and an engagement notch is provided on the side wall of the connecting cylinder so that the transmission gear disc engages with the gear ring.

[0024] Preferably, the rotating plate includes a first rotating plate and a second rotating plate, and the push ring includes a first push ring and a second push ring. One end of the first rotating plate and the second rotating plate are respectively rotatably connected to the two ends of the clamping member, and the other end of the first rotating plate and the second rotating plate are respectively rotatably connected to the first push ring and the second push ring.

[0025] The beneficial effects of the present invention are:

[0026] The present invention proposes a cigarette clamping device, which drives the core barrel shaft to rotate, so that the push ring drives the clamping member to clamp the cigarette in the core barrel. It can adapt to cigarettes of various specifications and sizes, and can be flexibly adjusted to ensure that the clamping force applied to each cigarette is appropriate, thereby improving the consistency and accuracy of detection.

[0027] The entire device can be rotated in conjunction with the rotating part carried on the clamping cylinder, thereby realizing circumferential rotation detection in the clamping state. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In the drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the present invention, but not all. It is clear that those skilled in the art can derive other drawings from these drawings without inventive effort.

[0029] Figure 1 This is a structural diagram of the appearance of a cigarette holding device according to an embodiment of the present invention;

[0030] Figure 2 This is a partially disassembled schematic diagram of a cigarette holding device according to an embodiment of the present invention;

[0031] Figure 3 is a cross-sectional view of a cigarette holding device according to an embodiment of the present invention;

[0032] Figure 4 It is a schematic diagram of the docking between the docking tube and the core tube;

[0033] Figure 5 It is the internal structure diagram of the clamping cylinder;

[0034] Figure 6 It is the structural diagram of the core tube;

[0035] Figure 7 Structural diagram of assembling the clamping parts and the push ring for the core barrel;

[0036] Figure 8 This is a disassembly diagram of the clamping part and the push ring;

[0037] Figure 9 The effect diagram of assembling multiple clamping parts for the core barrel;

[0038] Figure 10 A schematic diagram of the release achieved by pulling the clamping member away from the center of the core barrel while the push ring moves outward synchronously;

[0039] Figure 11 This is a schematic diagram of how the push ring moves inward synchronously to push the clamping member toward the center of the core barrel to achieve clamping.

[0040] In the figure: 1. docking tube; 2. driving part; 3. clamping part; 4. core tube; 5. clamping member; 6. clamping tube; 7. clamping chamber; 8. filling body; 9. rotating part; 11. mounting plate; 12. gear ring; 21. driving motor; 22. transmission gear plate; 23. connecting tube; 24. external driving part; 31. first push ring; 32. second push ring; 311. first rotating groove; 321. second rotating groove; 41. telescopic chamber; 42. first slide groove; 43. second slide groove; 411. first guide groove; 412. second guide groove; 51. first rotary plate; 52. second rotary plate; 511. first guide rib; 521. second guide rib; 61. first thread; 62. second thread. DETAILED DESCRIPTION

[0041] To more clearly illustrate the embodiments of the present invention and the technical solutions in the prior art, the following describes specific embodiments of the present invention with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. Those skilled in the art can derive other drawings and other embodiments based on these drawings without inventive effort. Furthermore, design orientations only represent relative positional relationships between components, not absolute positional relationships.

[0042] The embodiment of the present invention provides a cigarette holder device, please refer to Figures 1-11 It mainly includes a core barrel 4 and a clamping member 5. Both ends of the core barrel 4 are respectively provided with push rings that slide along the axial direction of the core barrel 4. A telescopic cavity 41 that is connected to the inner cavity of the core barrel 4 is opened on the core barrel 4 between the two push rings. The clamping member 5 is arranged in the telescopic cavity 41. Both ends of the clamping member 5 are rotatably connected with rotating pieces, and the two rotating pieces are rotatably connected to the two push rings; when the two push rings slide toward each other on the core barrel 4, they push the clamping member 5 to move toward the inner cavity, thereby clamping the sample to be tested located in the inner cavity.

[0043] In this application, the core tube 4 cooperates with the clamping part 5 to form the basic structure of the clamping part 3, and the clamping effect is achieved by the relative sliding of the two push rings on the core tube 4. In the embodiment of this application, the clamping tube 6, the driving part 2, etc. are used to achieve the relative sliding of the two push rings, and finally achieve adaptive clamping of the sample to be tested.

[0044] It should be noted that the push ring and the clamping member 5 are connected through a bidirectional rotation connection of a rotating piece, and the clamping member 5 is located on the inner side of the push ring. When the two push rings slide toward each other (the distance between the two push rings is shortened), the clamping member 5 is displaced toward the center of the push ring, and relative to the core tube 4, it is displaced toward its inner cavity, and can clamp and position the sample to be tested located in the inner cavity; when the two push rings slide in opposite directions (the distance between the two push rings is increased), the clamping member 5 is displaced toward the outside of the push ring, and relative to the core tube 4, it is displaced in the direction away from its inner cavity, and can release the clamped sample to be tested.

[0045] In the embodiment of the present application, sliding grooves are provided at both ends of the core tube 4, and sliding ribs are provided on the inner ring wall of the push ring corresponding to the sliding grooves, so that the push ring can be sleeved on both ends of the core tube 4 and slide and displace back and forth along the axis of the core tube 4 to achieve the above-mentioned push-pull effect on the clamping member 5.

[0046] In a specific embodiment, a telescopic cavity 41 is provided on the core tube 4 to accommodate the clamping member 5. When the clamping member 5 is pushed or pulled, it floats up and down in the telescopic cavity 41. When it floats downward, it is in a clamping state, and when it floats upward, it is in a loosening state.

[0047] Specifically, the opening position of the telescopic cavity 41 should be in the area between the two push rings, and the two ends of the clamping member 5 are rotatably connected to the two push rings through rotating plates, and the clamping member 5 is located in the telescopic cavity 41 in a sunken form, so that when the two push rings slide towards each other, the clamping member 5 can only float downward in the telescopic cavity 41; when sliding in the opposite direction, it can only float upward in the telescopic cavity 41.

[0048] It is understood that the floating range of the clamping member 5 is related to the size of the rotating piece, see Figure 10 、 Figure 11 When it is at the upper floating limit, the rotating piece is close to being in a horizontal state, and the rotation limit of the rotating piece can be limited by limiting the sliding range of the push ring; when it is at the lower floating limit, the rotating piece is in a vertical state. Between these two rotation limits, the upper and lower displacement range of the clamping member 5 is the adjustable range of the clamping.

[0049] It should be clear that the maximum diameter of the sample to be tested should be smaller than the inner diameter of the core tube 4, so that the sample to be tested can enter the inner cavity smoothly. As for the adjustable clamping range of the clamping member 5, when clamping the sample to be tested that can enter the inner cavity, it is limited by the size of the clamping member 5 itself and cannot perform a full-size clamping operation. Based on actual considerations, there is a preferred size for the sample to be tested, and it will not start from zero. The size of the clamping member 5 itself can be adapted to the minimum size of the sample to be tested, so that the clamping member 5 can stably clamp the minimum size sample to be tested within the adjustable range. For samples of other different sizes to be tested, the clamping member 5 can be flexibly adapted within the adjustable range to clamp and position.

[0050] In a specific embodiment, the push ring can cooperate with the clamping tube 6 to achieve synchronous sliding, thereby achieving a synchronous push / pull effect on the clamping member 5, that is, floating up and down in the telescopic cavity 41, clamping and positioning or loosening and releasing the sample to be tested in the inner cavity.

[0051] Specifically, the two push rings can be synchronously driven to slide in opposite directions or opposite directions by setting reverse threads to achieve relative displacement between the two push rings; wherein, when the two push rings slide in opposite directions, they slide relative to each other along the axis direction of the core tube 4, the distance between them is reduced, and the rotating pieces are pushed to rotate in opposite directions, such as Figure 11 As shown, the clamping member 5 floats downward to achieve the clamping effect; when the two push rings slide in opposite directions, they slide in opposite directions along the axis of the core tube 4, the distance between them increases, and the rotating piece is pushed to rotate in the opposite direction, as shown in FIG. Figure 10 As shown, the clamping member 5 is floated upward to achieve a releasing effect.

[0052] For example, threads can be respectively provided on the outer annular walls of the two push rings, and the threads on the two push rings are in opposite directions. The two ends of the inner annular wall of the clamping tube 6 are provided with corresponding mating threads corresponding to the threads on the two push rings. The clamping tube 6 is sleeved on the core tube 4 by being screwed with the two push rings. When relative rotation occurs between the core tube 4 and the clamping tube 6, the two push rings can slide in opposite directions or in the opposite directions. The two push rings can be screwed to the clamping tube 6 from both ends of the core tube 4, so that the clamping tube 6 and the core tube 4 are kept in the same position in the axial direction. The front end of the core tube 4 is the clamping end, and the rear end can be the input end or the suction end of the sample to be tested.

[0053] It can be understood that the length of the matching thread on the clamping cylinder 6 is greater than the length of the thread on the push ring, so that the push ring has a larger lateral displacement to meet the rotation requirements of the rotating piece.

[0054] In a specific embodiment, the two push rings can be a first push ring 31 and a second push ring 32, which are respectively slidably inserted at both ends of the core tube 4 and form a threaded relationship with the clamping tube 6. The outer ring wall of the first push ring 31 is provided with a thread, and the outer ring wall of the second push ring 32 is provided with a thread, and the threads of the two are opposite. Figure 5 As shown in , the clamping cylinder 6 is respectively provided with a first thread 61 and a second thread 62, which can be screwed together with the threads on the first push ring 31 and the second push ring 32. When the clamping cylinder 6 and the core cylinder 4 rotate relative to each other, the first push ring can be driven synchronously.

[0055] For example, form one: the core cylinder 4 is fixed and the clamping cylinder 6 is rotated; form two: the clamping cylinder 6 is fixed and the core cylinder 4 is rotated; the relative rotation of the above two forms can synchronously drive the first push ring 31 and the second push ring 32, and the driving result is opposite sliding or reverse sliding.

[0056] In a specific embodiment, the chutes opened at both ends of the core barrel 4 may specifically include a first chute 42 and a second chute 43. The first chute 42 is opened at one end of the core barrel 4, and the second chute 43 is opened at the other end of the core barrel 4. Figure 6 As shown in , the second sliding groove 43 is located at the clamping front end. Correspondingly, the inner ring wall of the first push ring 31 is provided with a first sliding rib corresponding to the first sliding groove 42, and the inner ring wall of the second push ring 32 is provided with a second sliding rib corresponding to the second sliding groove 43.

[0057] Preferably, multiple identical slide grooves can be opened at the same end of the core tube 4, and they can be evenly distributed in the circumferential direction, and the number of slide grooves and sliding ribs at the same end can be the same; the installation positions of the two push rings can also be distinguished according to the matching number of slide grooves and sliding ribs opened on each end.

[0058] It is understandable that the lengths of the first chute 42 and the second chute 43 are different and can be opened according to actual needs.

[0059] In the embodiment of the present application, both ends of the clamping member 5 are provided with rotating plates that are rotatably connected, which can be specifically divided into a first rotating plate 51 and a second rotating plate 52. One end of the first rotating plate 51 and the second rotating plate 52 are respectively rotatably connected to the two ends of the clamping member 5, and the other end of the first rotating plate 51 and the second rotating plate 52 are respectively rotatably connected to the first push ring 31 and the second push ring 32, so as to realize the above-mentioned push / pull effect of the push ring on the clamping member 5.

[0060] Specifically, the first rotating piece 51 and the second rotating piece 52 are installed vertically as a whole. The lower end of the first rotating piece 51 is rotatably connected to the left end of the clamping member 5, and the lower end of the second rotating piece 52 is rotatably connected to the right end of the clamping member 5. Figure 8 As shown in the figure, a first rotation groove 311 is provided at the inner end of the first push ring 31, and the upper end of the first rotating plate 51 is rotatably connected to the first rotation groove 311; a second rotation groove 321 is provided at the inner end of the second push ring 32, and the upper end of the second rotating plate 52 is rotatably connected to the second rotation groove 321.

[0061] The clamping member 5 is located in the telescopic cavity 41. Vertical guide ribs can be provided on both sides of the clamping member 5, specifically including a first guide rib 511 and a second guide rib 521. Corresponding vertical guide grooves can be provided in the telescopic cavity 41, specifically including a first guide groove 411 and a second guide groove 412. Figure 6 、 Figure 8 As shown in the figure, when the clamping member 5 is pushed / pulled by the push rings on both sides, the clamping member 5 is restricted by the matching relationship between the guide ribs and the guide grooves, and the clamping member 5 can always be positioned at the same position in the core tube 4 to float up and down, that is, the clamping member 5 floats vertically up and down in the telescopic cavity 41 without shaking left and right, and the clamping effect on the sample to be tested is stable.

[0062] Preferably, the guide rib can be provided on the inner side of the rotating connection of the rotating piece so as not to affect the normal rotation of the rotating piece within the adjustable range, such as Figure 10 、 Figure 11 As shown in .

[0063] Preferably, the rotating piece is rotatably connected to the upper two ends of the clamping member 5, and extends upwardly out of the telescopic cavity 41 to be rotatably connected to the push rings on both sides, and the lower end of the clamping member 5 can be used to clamp the sample to be tested, and can be set to an arc shape, such as Figure 9 As shown in , scratches, indentations, etc. on the sample to be tested can be avoided. When multiple clamping members 5 cooperate to clamp, it is beneficial to increase the overall adjustable range.

[0064] The clamping device of the present application can be supported by an additional supporting structure, and the clamping end of the core barrel 4 can be directed to a specific position when in use. Based on this, the external supporting structure is not limited in this application and can be determined by the specific detection environment.

[0065] However, it should be made clear that the clamping cylinder 6 of the present application is equipped with a rotating part 9 and an external drive part 24. The rotating part 9 is rotatably connected to the external support structure, and the external drive part 24 is fixed to the clamping cylinder 6. The external drive part 24 drives the clamping cylinder 6 and the core cylinder 4 to rotate synchronously in the rotating part 9.

[0066] Specifically, the rotating portion 9 can be a bearing, with the external support structure fixedly connected to the outer ring of the bearing, and the inner ring of the bearing fixedly connected to the outer ring wall of the clamping tube 6, forming a rotational connection between the two. The external drive portion 24 can be an annular drive tooth that engages with the external drive device to drive it, and is locked and prevented from rotating when not driven. The external drive portion 24 can be located in front of or behind the rotating portion 9, and can be adjusted according to the actual engagement requirements of the external drive device.

[0067] In actual application, the sample to be tested in the core barrel 4 can be input from the clamping front end or from the rear end of the core barrel 4. The clamping device of the present application also includes a docking barrel 1 for transporting the sample to be tested into the inner cavity of the core barrel 4. The docking barrel 1 is docked and fixed to the clamping tail end of the core barrel 4, and the inner cavity of the docking barrel 1 is coaxially connected with the inner cavity of the core barrel 4.

[0068] Since the front end of the docking tube 1 is docked with the rear end of the core tube 4, the rear end connection device of the docking tube 1 can be adjusted according to actual needs. When the sample to be tested is input from the clamping front end, the sample to be tested can be sucked away by the negative pressure airflow; when the sample to be tested is input from the clamping rear end, the sample to be tested can be transported to the core tube 4 by the high-pressure airflow.

[0069] In the embodiment of the present application, the driving portion 2 is provided based on the clamping cylinder 6, and the core cylinder 4 is driven by the docking cylinder 1 docked and fixed with the core cylinder 4. The clamping cylinder 6 can be locked by the external driving portion 24 in conjunction with the external driving device so that it does not rotate. At this time, the core cylinder 4 is driven to rotate, thereby achieving relative rotation between the clamping cylinder 6 and the core cylinder 4.

[0070] Specifically, the driving part 2 is installed and fixed based on the clamping tube 6 , a gear ring 12 is provided on the outer wall of the docking tube 1 , and the output end of the driving part 2 is transmission-connected to the gear ring 12 .

[0071] Exemplarily, the driving part 2 includes a driving motor 21, a transmission gear disc 22, and a connecting tube 23. The front port of the connecting tube 23 is docked with the rear end of the clamping tube 6 and is sleeved on the connection between the docking tube 1 and the core tube 4; the rear port of the connecting tube 23 is fixed with a mounting disk 11, and the driving motor 21 is fixed to the front of the mounting disk 11. The output shaft (i.e., the output end) of the driving motor 21 passes through the mounting disk 11 to its back side, and is connected to the transmission gear disc 22 located on the back side of the mounting disk 11. The transmission gear disc 22 is engaged with the gear ring 12 on the docking tube 1, thereby realizing the driving of the docking tube 1. Further, it can drive the core tube 4 to rotate, so that relative rotation occurs between the clamping tube 6 and the core tube 4.

[0072] Preferably, the gear ring 12 is located in the connecting tube 23, and a meshing notch is provided on the side wall of the connecting tube 23 so that the transmission gear disc 22 meshes with the gear ring 12. Figure 1 、 Figure 2 As shown in .

[0073] In the embodiment of the present application, the clamping cylinder 6 can be locked by the external driving portion 24, so that the driving portion 2 drives the core cylinder 4 to rotate relative to the clamping cylinder 6. The mounting plate 11 and the clamping cylinder 6 are relatively fixed. When only the driving motor 21 is in operation, the clamping cylinder 6 is locked by the external driving portion 24 and cannot rotate, and the core cylinder 4 is driven to rotate, thereby achieving the opposite sliding or reverse sliding of the push ring.

[0074] When the circular rotation test of the sample is required, the external drive unit 24 can directly drive the clamping cylinder 6 to rotate the entire clamping device. During this process, the relative positions of the core cylinder 4 and the clamping cylinder 6 remain unchanged and no relative rotation occurs.

[0075] Based on the technical problem of this application, the samples to be tested can be finished cigarettes, semi-finished cigarettes, filter rods, smoking segments, etc., which can be selected according to actual needs to test cigarettes and their parts. The clamping device of this application can support clamping positioning detection and rotation detection.

[0076] In the embodiment of the present application, a plurality of telescopic cavities 41 can be evenly opened in the circumference of the core barrel 4, and a clamping member 5 is placed in each telescopic cavity 41. Each clamping member 5 is connected to the push rings on both sides through the rotating piece in the above-mentioned manner, so that the plurality of clamping members 5 can evenly clamp the sample to be tested from multiple directions, such as Figure 9 As shown in FIG. , the cavity formed by the multiple clamping members 5 within the inner cavity is the clamping cavity 7. During clamping, the sample to be tested is located and clamped within the clamping cavity 7. The dimensions of the multiple clamping members 5 and the rotating piece can be consistent, allowing the push ring to synchronously drive all the clamping members 5 to float upward or downward simultaneously, achieving clamping, positioning, or loosening and release.

[0077] Accordingly, when multiple telescopic cavities 41 and clamping members 5 are provided, multiple rotation slots are correspondingly defined on the push ring to accommodate the rotating plates rotatably connected to the multiple clamping members 5. It is understood that the telescopic cavity 41 is located in the middle of the core barrel 4 and does not interfere with the sliding slots defined at both ends; the length of the sliding slots or the size of the clamping members 5 can be appropriately adjusted to eliminate any potential interference.

[0078] It can be understood that, based on the inner cavity structure of the core tube 4 of the present application, when only one clamping member 5 is provided, an effective clamping effect of the sample to be tested can also be achieved. In order to enhance the stability of the single clamping member 5 during clamping, the structure of the lower end of the clamping member 5 can be appropriately adjusted, and a certain degree of positioning correction can be made when touching the sample to be tested. For example, if it is adjusted to an inward-concave arc structure, the sample to be tested can be clamped in a snap-fit ​​manner in conjunction with the inner cavity wall structure.

[0079] The clamping solutions extending from this, such as using two clamping members 5 , three clamping members 5 , four clamping members 5 , etc., should all fall within the reasonable adjustment scope of this application.

[0080] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0081] The above is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific embodiments of the present invention should not be considered to be limited to these descriptions. For those skilled in the art to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all of these should be considered to fall within the scope of protection of the present invention.

Claims

1. A cigarette holding device, characterized in that: It comprises a core barrel (4), a clamping member (5), and a clamping barrel (6), wherein both ends of the core barrel (4) are respectively provided with push rings that slide along the axial direction of the core barrel (4), and a telescopic cavity (41) that is communicated with the inner cavity of the core barrel (4) is opened on the core barrel (4) between the two push rings, and the clamping member (5) is arranged in the telescopic cavity (41), and both ends of the clamping member (5) are rotatably connected with rotating pieces, and the two rotating pieces are rotatably connected to the push rings on their respective sides; when the two push rings slide toward each other on the core barrel (4), the clamping member (5) is pushed to move toward the inner cavity, thereby clamping the sample to be tested located in the inner cavity; The outer ring walls of the two push rings are respectively provided with threads, and the threads on the two push rings are in opposite directions. The two ends of the inner ring wall of the clamping tube (6) are provided with matching threads corresponding to the threads on the two push rings. The clamping tube (6) is sleeved on the core tube (4) by being threadedly connected with the two push rings; when the clamping tube (6) and the core tube (4) rotate relative to each other, the two push rings slide toward each other or in the opposite directions. Both ends of the core barrel (4) are provided with sliding grooves, and sliding ribs are provided on the inner ring wall of the push ring corresponding to the sliding grooves, so that the two push rings can slide back and forth along the axial direction of the core barrel (4); the two push rings are respectively screwed to the clamping barrel (6) from both ends of the core barrel (4).

2. The cigarette holder according to claim 1, characterized in that: When the two push rings slide in opposite directions on the core barrel (4), the clamping member (5) is pulled to move in a direction away from the inner cavity, thereby releasing the clamped sample to be tested.

3. The cigarette holder according to claim 1, characterized in that: A plurality of telescopic cavities (41) are uniformly provided on the circumference of the core barrel (4), and a clamping member (5) is placed in each of the telescopic cavities (41), so that the plurality of clamping members (5) can uniformly clamp the sample to be tested from multiple directions.

4. The cigarette holder device according to claim 1, characterized in that: The length of the matching thread on the clamping cylinder (6) is greater than the length of the thread on the push ring.

5. The cigarette holding device according to claim 1, characterized in that: A rotating portion (9) and an external drive portion (24) are provided on the outer ring wall of the clamping cylinder (6); the rotating portion (9) is rotatably connected to the external support structure; the external drive portion (24) is fixedly connected to the clamping cylinder (6); and the external drive portion (24) drives the clamping cylinder (6) and the core cylinder (4) to rotate synchronously in the rotating portion (9).

6. The cigarette holding device according to claim 5, characterized in that: It also includes a docking tube (1) for conveying the sample to be tested into the inner cavity of the core tube (4), the docking tube (1) is docked and fixed to the clamping tail end of the core tube (4), and the inner cavity of the docking tube (1) is coaxially connected to the inner cavity of the core tube (4).

7. The cigarette holding device according to claim 6, characterized in that: It also includes a driving part (2), which is installed and fixed based on the clamping cylinder (6), and a gear ring (12) is provided on the outer wall of the docking cylinder (1), and the output end of the driving part (2) is transmission-connected to the gear ring (12).

8. The cigarette holding device according to claim 7, characterized in that: The external drive portion (24) locks the clamping cylinder (6), so that the drive portion (2) drives the core cylinder (4) and the clamping cylinder (6) to rotate relative to each other.

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