A multi-channel fully automatic cigar smoke resistance detection device

Abstract

The present invention discloses a multi-channel, fully automatic cigar draw resistance detection device, comprising a frame, on which a loading unit, a blanking unit, and a clamping detection unit are provided. The clamping detection unit comprises a mounting plate, a clamping unit, and a detection unit. The clamping unit comprises a plurality of clamping assemblies, each of which is provided with a clamping cavity for clamping a sample. The bottoms of the plurality of blanking channels are connected one-to-one with the clamping cavities of the plurality of clamping assemblies below. The detection unit comprises a detection beam and a plurality of detection assemblies. Each detection assembly comprises a hollow suction rod, the top end of the hollow suction rod extending upward into the corresponding clamping cavity for supporting the sample in the clamping cavity. The bottom of the detection beam is provided with a plurality of air pipe joints, which are connected one-to-one with the suction channels of the plurality of hollow suction rods. The advantages of the present invention are that it can realize automatic, rapid, and accurate detection of the draw resistance parameters of cigars of different specifications.

Description

Technical Field

[0001] The present invention relates to the field of cigar detection equipment, and in particular to a multi-channel fully automatic cigar draw resistance detection device. Background Art

[0002] As cigars are increasingly recognized in the market, cigar production output is increasing rapidly. At the same time, the detection of various cigar product parameters, especially the draw resistance parameters, is becoming increasingly important. Therefore, the research on cigar draw resistance detection devices is very urgent.

[0003] Unlike traditional cigarettes, cigars are available in a wide variety of varieties, with no uniform standard for diameter or length. Currently, cigar draw resistance testers on the market are all manually operated, requiring manual insertion and reading of the draw resistance to determine compliance. This process requires significant human involvement, necessitating the development of a fully automated cigar draw resistance tester. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a multi-channel fully automatic cigar draw resistance detection device, so as to achieve automatic, rapid and accurate detection of draw resistance parameters of cigars of different specifications.

[0005] The present invention is achieved through the following technical solutions:

[0006] A multi-channel fully automatic cigar smoke resistance detection device includes a frame, on which a loading unit, a blanking unit, and a clamping detection unit are arranged in sequence from top to bottom.

[0007] The loading unit includes a movable loading platform, which is slidably arranged on the frame and can slide back and forth in the front-back direction. A plurality of loading troughs are provided on the movable loading platform, and the plurality of loading troughs are arranged in a row along the left-right direction. Each loading trough is used to place a material tray, and a plurality of sample slots for placing samples are provided in the material tray. The plurality of sample slots of the material tray are arranged in a row along the front-back direction. The plurality of material trays form a plurality of rows of sample slots, and the bottom of each sample slot is closed or opened by a flip-up plate that can be turned over;

[0008] The blanking unit includes a plurality of blanking channels arranged in a row along the left-right direction, and the tops of the plurality of blanking channels are connected one by one with the bottoms of the single-row sample slots of the plurality of material trays above;

[0009] The clamping detection unit includes a mounting plate and a clamping unit and a detection unit arranged in an upper and lower order on the mounting plate. The mounting plate is rotatably mounted on the frame. The clamping unit includes a plurality of clamping assemblies arranged in a row along the left and right directions. Each clamping assembly is provided with a clamping cavity for clamping the sample. The bottoms of the plurality of blanking channels are connected one by one with the clamping cavities of the plurality of clamping assemblies below. The detection unit includes a detection beam, which is slidably mounted on the mounting plate and can slide back and forth in a vertical direction. A plurality of detection assemblies are provided on the detection beam. Each detection assembly includes a hollow suction rod extending vertically. A suction channel is formed inside the hollow suction tube. The hollow suction rods of multiple detection components correspond one-to-one to the clamping cavities of multiple clamping components. The bottom of each hollow suction rod can be detachably mounted on the detection beam. The top of the hollow suction rod extends upward into the corresponding clamping cavity to support the sample in the clamping cavity, and the outer wall of the hollow suction rod is sealed with the inner wall of the clamping cavity. Multiple air pipe joints are provided at the bottom of the detection beam. The multiple air pipe joints are connected one-to-one with the suction channels of the multiple hollow suction rods. The outside of the air pipe joint is connected to the detection air pipe and the suction air pipe. The end of the detection air pipe is connected to a pressure differential sensor. A valve is provided on the suction air pipe, and the end of the suction air pipe is connected to a negative pressure air source.

[0010] Furthermore, it also includes a sorting unit, which is located below the clamping detection unit. The sorting unit includes a qualified sample collection box and an unqualified sample collection box arranged in front and back.

[0011] Furthermore, the clamping assembly includes an inner clamping tube and an outer mounting tube that are sheathed in an inner and outer manner. The outer mounting tube is fixedly connected to the mounting plate, and the inner clamping tube is detachably connected to the outer mounting tube. An elastic tube is provided in the inner hole of the inner clamping tube, and the upper and lower ends of the elastic tube are respectively fixed to the upper and lower ends of the inner clamping tube. A plurality of air holes are provided on the inner clamping tube, and a closed annular gap is formed between the inner clamping tube and the outer mounting tube. By introducing negative pressure gas into the annular gap, the elastic tube expands and is adsorbed on the inner wall of the inner clamping tube; when the negative pressure gas in the annular gap is disconnected, the elastic tube automatically retracts and wraps around the outer wall of the sample and the outer wall of the hollow suction rod.

[0012] Furthermore, the top of the inner clamping tube extends out from the outer mounting tube and is fixed with a screw cover, the screw cover is provided with a convex ring extending downward, the convex ring is located on the periphery of the outer mounting tube, a locking protrusion is provided at the top of the outer side wall of the outer mounting tube, and a clamping groove is provided on the convex ring to be engaged with the locking protrusion, and an introduction groove is provided at the bottom of one end of the clamping groove, the introduction groove passes through to the bottom end surface of the convex ring, and the width of the locking protrusion, the width of the introduction groove and the width of the clamping groove increase successively.

[0013] Furthermore, the upper and lower sections of the outer side wall of the inner clamping tube are provided with sealing rings, and the upper and lower ends of the annular gap between the inner clamping tube and the outer mounting tube are sealed by the upper and lower sealing rings.

[0014] Furthermore, the blanking unit includes a movable blanking part and a fixed blanking part which are arranged relatively front and back. The fixed blanking part is fixedly installed on the frame. The movable blanking part includes two movable blanking doors of a split type. The ends of the left and right movable blanking doors that are away from each other are respectively hinged at the left and right ends of the fixed blanking part. The two movable blanking doors and the fixed blanking part are respectively adsorbed together by magnetic attraction. A plurality of rear half blanking troughs are opened on the front side of the fixed blanking part, and a plurality of front half blanking troughs are opened on the rear side of the two movable blanking doors. The plurality of rear half blanking troughs are matched one by one with the plurality of front half blanking troughs to form the plurality of blanking channels.

[0015] Furthermore, the movable loading platform is driven to move forward and backward by a first driving mechanism, the first driving mechanism includes a first motor and a first linear module, and the first motor drives the movable loading platform to move forward and backward through the first linear module.

[0016] Furthermore, the detection beam is driven to slide vertically on the mounting plate by a second driving mechanism, the second driving mechanism includes a second motor and a second linear module, and the second motor drives the detection beam to move vertically on the mounting plate through the second linear module.

[0017] Furthermore, the left and right ends of the mounting plate are respectively provided with rotating shafts, and the two rotating shafts are respectively rotatably mounted on the frame, and the mounting plate is driven to rotate around the axis of the rotating shaft by a third motor.

[0018] Furthermore, the detection beam is provided with a mounting groove for inserting the bottom of the hollow suction rod, and a sealing gasket is provided in the mounting groove to seal the gap between the outer wall of the hollow suction rod and the inner wall of the mounting groove.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. The present invention provides a multi-channel, fully automatic cigar draw resistance testing device. This device, through a loading unit and a blanking unit, enables simultaneous loading and blanking of multiple groups of samples. In its clamping and testing unit, multiple clamping assemblies simultaneously clamp multiple samples, multiple hollow suction tubes apply negative pressure suction to the bottoms of the multiple samples, and multiple differential pressure sensors measure the draw resistance of the multiple samples. This enables simultaneous testing of the draw resistance parameters of multiple samples. The entire process is highly automated, saving manpower while significantly improving testing efficiency.

[0021] 2. The present invention provides a multi-channel, fully automatic cigar draw resistance detection device, which is provided with a sorting unit below the clamping detection unit. The sorting unit includes two sample collection boxes arranged in front and behind. By controlling the rotation angle of the mounting plate, the clamping cavity can be controlled to open corresponding to the sample collection boxes at different positions. The samples in the clamping cavity fall into the corresponding sample collection boxes under the action of gravity, so that qualified samples and unqualified samples fall into the corresponding sample collection boxes below, respectively, thereby realizing automatic sorting of qualified samples and unqualified samples.

[0022] 3. The present invention provides a multi-channel, fully automatic cigar draw resistance test device. In its clamping assembly, an inner clamping tube is detachably connected to an outer mounting tube, and a hollow suction rod is detachably mounted on a detection beam. Different sizes of inner clamping tubes and hollow suction rods can be replaced according to the specifications of the cigars, enabling clamping and measurement of cigars of varying lengths and diameters within a certain range. Furthermore, an elastic tube is positioned within the inner bore of the inner clamping tube, cleverly utilizing the elastic contraction properties of the elastic tube. By applying negative pressure to the annular gap between the inner clamping tube and the outer mounting tube, the expansion or contraction of the elastic tube is controlled, thereby loosening or clamping the sample within the elastic tube. This ingenious structural design allows for convenient, fast, and precise control.

[0023] 4. The present invention provides a multi-channel, fully automatic cigar draw resistance test device. The inner clamping tube is equipped with a screw cap on top. The screw cap's slots engage with protrusions on the outer wall of the outer mounting tube, creating a removable connection between the inner and outer mounting tubes. This connection facilitates quick and easy assembly and disassembly of the inner clamping tube. To install the inner clamping tube, simply grasp the screw cap, lower it, and rotate it horizontally. To remove the inner clamping tube, simply grasp the screw cap, rotate it in the opposite direction, and then lift it.

[0024] 5. The present invention provides a multi-channel, fully automatic cigar draw resistance detection device, whose blanking unit includes a movable blanking part and a fixed blanking part arranged in front and back relative to each other, and multiple blanking channels are formed by one-to-one matching of multiple front half blanking troughs on the rear side of the movable blanking part and multiple rear half blanking troughs on the front side of the fixed blanking part. The structure is simple and convenient for timely cleaning of the blanking channels when material is stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a perspective view of the present invention.

[0026] Figure 2 It is the front view of the present invention.

[0027] Figure 3 It is a perspective view of the clamping detection unit of the present invention.

[0028] Figure 4 It is a three-dimensional half-section view of the clamping assembly of the present invention.

[0029] Figure 5 It is a front view of the clamping assembly of the present invention.

[0030] Figure 6 It is a three-dimensional diagram of the mobile loading platform of the present invention.

[0031] Figure 7 It is a three-dimensional view of the material tray of the present invention in an open state.

[0032] Figure 8 It is a structural schematic diagram of the material tray of the present invention in an open state.

[0033] Figure 9 It is a perspective view of the blanking unit of the present invention.

[0034] Figure 10 It is a three-dimensional view of the two movable blanking doors of the blanking unit of the present invention in an open state.

[0035] Figure 11 It is a three-dimensional cross-sectional view of the connection between the hollow suction rod and the detection beam of the present invention.

[0036] Numbers in the figure: 1 frame, 2 movable loading platform, 3 first slide rail, 4 first motor, 5 first linear module, 6 loading chute, 7 tray, 8 sample chute, 9 tray door, 10 flap, 11 hinged shaft, 12 cylinder, 13 blanking channel, 14 fixed blanking part, 15 movable blanking door, 16 rear half blanking chute, 17 front half blanking chute, 18 mounting plate, 19 rotating shaft, 20 clamping assembly, 21 clamping cavity, 22 detection beam, 23 second slide rail, 24 hollow suction rod, 25 suction channel, 26 sealing gasket, 27 air pipe joint, 28 inner clamping cylinder, 29 outer mounting cylinder, 30 air hole, 31 annular gap, 32 screw cap, 33 convex ring, 34 engaging protrusion, 35 card slot, 36 introduction slot, 37 qualified sample collection box, 38 unqualified sample collection box. DETAILED DESCRIPTION

[0037] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process. However, the protection scope of the present invention is not limited to the following embodiment.

[0038] See also Figures 1 to 11 This embodiment discloses a multi-channel fully automatic cigar draw resistance detection device, including a frame 1, on which a loading unit, a blanking unit, a clamping detection unit and a sorting unit are arranged in sequence from top to bottom.

[0039] The loading unit includes a mobile loading platform 2, which is slidably mounted on a frame 1 and can slide back and forth in a front-to-back direction. The bottom of the mobile loading platform 2 slides with two first slide rails 3 on the frame 1. The mobile loading platform 2 is driven back and forth by a first drive mechanism, which includes a first motor 4 and a first linear module 5. The first motor 4 drives the mobile loading platform 2 back and forth through the first linear module 5. The mobile loading platform 2 is provided with multiple loading troughs 6, which are arranged in a row along the left-right direction. Each loading trough 6 is used to place a material tray 7. The material tray 7 is provided with multiple sample slots 8 for placing samples. A tray door 9 that can be opened or closed is provided on one side of the material tray 7. The multiple sample slots 8 of the material tray 7 are arranged in a row along the front-to-back direction. The multiple material trays 7 form multiple rows of sample slots 8. The bottom of each sample slot 8 is closed or opened by a flip-up flap 10. The flap 10 is hinged to the bottom of the material tray 7 via a hinge 11. The elastic force of a torsion spring keeps the flap 10 closed in its natural state. A cylinder 12 is located below each loading chute 6, corresponding to the material discharge channel 13. When the piston rod of cylinder 12 extends upward, it lifts one end of the flap 10, causing the other end to flip downward, opening the flap 10. When the piston rod of cylinder 12 retracts, the flap 10 automatically returns to its original position, sealed against the bottom of the sample trough 8, under the action of the torsion spring.

[0040] The blanking unit includes a plurality of blanking channels 13 arranged in a row along the left-right direction, and the tops of the plurality of blanking channels 13 are connected one by one with the bottoms of the single-row sample slots 8 of the plurality of material trays 7 above. The blanking unit includes a movable blanking part and a fixed blanking part 14 arranged in front and back relative to each other. The fixed blanking part 14 is fixedly mounted on the frame 1. The movable blanking part includes two movable blanking doors 15 of a split type. The ends of the left and right movable blanking doors 15 that are separated from each other are respectively hinged to the left and right ends of the fixed blanking part 14. The two movable blanking doors 15 are respectively attached to the fixed blanking part 14 by magnetic attraction. The fixed blanking part 14 has a plurality of rear half blanking troughs 16 on the front side, and the two movable blanking doors 15 have a plurality of front half blanking troughs 17 on the rear side. The plurality of rear half blanking troughs 16 and the plurality of front half blanking troughs 17 are matched one by one to form a plurality of blanking channels 13.

[0041] The clamping detection unit includes a mounting plate 18 and a clamping unit and a detection unit arranged in an upper and lower arrangement on the mounting plate 18. The mounting plate 18 is rotatably mounted on the frame 1. A rotating shaft 19 is respectively provided at the left and right ends of the mounting plate 18. The two rotating shafts 19 are respectively rotatably mounted on the frame 1. The mounting plate 18 is driven by a third motor to rotate around the axis of the rotating shaft 19. The clamping unit includes a plurality of clamping assemblies 20 arranged in a row along the left-right direction, each clamping assembly 20 is provided with a clamping cavity 21 for clamping the sample, and the bottoms of the plurality of blanking channels 13 are docked one by one with the clamping cavities 21 of the plurality of clamping assemblies 20 below; the detection unit includes a detection beam 22, which is slidably set on the mounting plate 18 and can slide back and forth in the vertical direction. The detection beam 22 is slidably matched with the second slide rail 23 on the mounting plate 18, and the detection beam 22 is driven to slide vertically on the mounting plate 18 by a second driving mechanism. The second driving mechanism includes a second motor and a second linear module. The second motor drives the detection beam 22 to move vertically on the mounting plate 18 through the second linear module. A plurality of detection components are provided on the detection beam 22, each detection component includes a vertically extending hollow suction rod 24, and a suction channel 25 is formed inside the hollow suction tube. The hollow suction rods 24 of the multiple detection components correspond one-to-one to the clamping cavities 21 of the multiple clamping components 20. The bottom of each hollow suction rod 24 can be detachably mounted on the detection beam 22. The detection beam 22 is provided with a mounting groove for inserting the bottom of the hollow suction rod 24, and a sealing gasket 26 is provided in the mounting groove. The sealing gasket 26 is used to seal the gap between the outer wall of the hollow suction rod 24 and the inner wall of the mounting groove. The top of the hollow suction rod 24 extends upward into the corresponding clamping cavity 21 to support the sample in the clamping cavity 21. The outer wall of the hollow suction rod 24 is sealed and connected to the inner wall of the clamping cavity 21. The bottom of the detection beam 22 is equipped with multiple air pipe joints 27, which are connected to the suction channels 25 of the multiple hollow suction rods 24 in a one-to-one correspondence. The external connection of the air pipe joints 27 is connected to the parallel detection air pipe and suction air pipe. The end of the detection air pipe is connected to a pressure differential sensor. The suction air pipe is equipped with a valve and a flow control valve. The end of the suction air pipe is connected to a negative pressure air source. The pressure differential sensor measures the pressure difference between the detection air pipe and atmospheric pressure.

[0042] The clamping assembly 20 comprises an inner clamping tube 28 and an outer mounting tube 29, which are arranged in a nested arrangement. The outer mounting tube 29 is fixedly attached to the mounting plate 18, and the inner clamping tube 28 is detachably attached to the outer mounting tube 29. An elastic tube, typically made of latex, is positioned within the inner bore of the inner clamping tube 28. The upper and lower ends of the elastic tube are secured to the upper and lower ends of the inner clamping tube 28, respectively. Multiple air holes 30 are formed in the inner clamping tube 28, forming a sealed annular gap 31 between the inner clamping tube 28 and the outer mounting tube 29. Seal rings are provided on the upper and lower sections of the outer wall of the inner clamping tube 28, sealing the upper and lower ends of the annular gap 31 between the inner clamping tube 28 and the outer mounting tube 29. Negative pressure gas is introduced into the annular gap 31, causing the elastic tube to expand and adhere to the inner wall of the inner clamping tube 28. When the negative pressure gas is removed from the annular gap 31, the elastic tube automatically retracts, wrapping around the outer wall of the sample and the outer wall of the hollow suction rod 24.

[0043] The top of the inner clamping cylinder 28 extends above the outer mounting cylinder 29 and is fixed with a screw cover 32. The screw cover 32 is provided with a downwardly extending convex ring 33. The convex ring 33 is located on the periphery of the outer mounting cylinder 29. A locking protrusion 34 is provided at the top of the outer wall of the outer mounting cylinder 29. The convex ring 33 is provided with a clamping groove 35 that is engaged with the locking protrusion 34. An introduction groove 36 is provided at the bottom of one end of the clamping groove 35. The introduction groove 36 passes through to the bottom end surface of the convex ring 33. The width of the locking protrusion 34, the width of the introduction groove 36 and the width of the clamping groove 35 increase successively.

[0044] The sorting unit is located below the clamping detection unit, and the sorting unit includes a qualified sample collection box 37 and an unqualified sample collection box 38 arranged in front and back.

[0045] In this embodiment, ten sample slots 8 are provided in the material tray 7, and five loading slots 6 are provided on the mobile loading platform 2, serving as five loading channels. The five channels have the same working process and principle. During operation, each channel can be selected to operate or not. Here, the working process of the device is described as follows based on a single channel operation:

[0046] Based on the diameter and length of the cigar sample to be measured, the corresponding inner clamping tube 28 and hollow suction rod 24 are selected and installed. The second motor drives the detection beam 22 to move vertically, raising the hollow suction rod 24 and inserting it into the clamping chamber 21 to the corresponding height. The first motor 4 drives the movable loading platform 2 until the first sample slot 8 on the material tray 7 is aligned with the drop channel 13 below. Negative pressure gas is introduced into the annular gap 31 of the clamping assembly 20, causing the elastic tube to expand and adhere to the inner wall of the inner clamping tube 28, opening the elastic tube. The cylinder 12 actuates, pushing open the flap 10 at the bottom of the first sample slot 8. The sample in the first sample slot 8 loses its support, passes through the drop channel 13, and falls into the open elastic tube below, supported by the hollow suction rod 24, completing the automatic loading process. The negative pressure in the annular gap 31 of the clamping assembly 20 is then disconnected. The elastic tube automatically retracts after losing its negative pressure, adaptively wrapping around the sample and the hollow suction rod 24, thereby achieving a hermetic clamping of the sample. The negative pressure source in the suction pipe is then connected, generating a constant suction flow in both the suction pipe and the test pipe. During this process, a differential pressure sensor monitors the pressure in the test pipe, allowing the sample's draw resistance parameters to be measured. After testing, the measured draw resistance data is compared with standard draw resistance data to determine if the sample is acceptable. The third motor then operates, rotating the mounting plate 18. When the sample is aligned with the corresponding sample collection box, the negative pressure in the annular gap 31 of the clamping assembly 20 is connected, opening the elastic tube. The sample then falls under gravity into the sample collection box below, thus achieving automatic sorting of qualified and unqualified samples. The third motor then reverses, returning the mounting plate 18 to its vertical position. At this point, the automatic detection of the sample absorption resistance in the first sample slot 8 is completed.

[0047] When testing the sample in the next sample slot 8, the first motor 4 drives the movable loading platform 2 to continue moving until the next sample slot 8 on the tray 7 is aligned with the drop channel 13 below. The above process is repeated to test the sample in the next sample slot 8. The entire action flow is repeated until all samples in the ten sample slots 8 in the tray 7 are tested.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-channel fully automatic cigar draw resistance detection device, comprising a frame (1), characterized in that: The frame (1) is provided with a loading unit, a blanking unit, and a clamping detection unit arranged in sequence from top to bottom. The loading unit comprises a movable loading platform (2), the movable loading platform (2) being slidably arranged on the frame (1) and capable of sliding back and forth in the front-back direction, a plurality of loading troughs (6) being provided on the movable loading platform (2), the plurality of loading troughs (6) being arranged in a row in the left-right direction, each loading trough (6) being used for placing a material tray (7), a plurality of sample troughs (8) for placing samples being provided in the material tray (7), the plurality of sample troughs (8) of the material tray (7) being arranged in a row in the front-back direction, the plurality of material trays (7) forming a plurality of rows of sample troughs (8), the bottom of each sample trough (8) being closed or opened by a flip-up plate (10) that can be turned over; The blanking unit comprises a plurality of blanking channels (13) arranged in a row along the left-right direction, and the tops of the plurality of blanking channels (13) are connected one by one with the bottoms of the single-row sample slots (8) of the plurality of material trays (7) above; The clamping detection unit includes a mounting plate (18) and a clamping unit and a detection unit arranged in an upper and lower manner on the mounting plate (18). The mounting plate (18) is rotatably mounted on the frame (1). The clamping unit includes a plurality of clamping assemblies (20) arranged in a row along the left-right direction. Each clamping assembly (20) is provided with a clamping cavity (21) for clamping a sample. The bottoms of the plurality of blanking channels (13) are connected one by one with the clamping cavities (21) of the plurality of clamping assemblies (20) below. The detection unit includes a detection beam (22). The detection beam (22) is slidably mounted on the mounting plate (18) and can slide back and forth in a vertical direction. A plurality of detection assemblies are provided on the detection beam (22). Each detection assembly includes a hollow suction rod (24) extending vertically. A suction channel (25) is formed inside the hollow suction pipe. The hollow suction rods (24) of the detection components correspond to the clamping cavities (21) of the multiple clamping assemblies (20) one by one, and the bottom of each hollow suction rod (24) is detachably mounted on the detection beam (22). The top of the hollow suction rod (24) extends upward into the corresponding clamping cavity (21) to support the sample in the clamping cavity (21), and the outer wall of the hollow suction rod (24) is sealed and connected to the inner wall of the clamping cavity (21). A plurality of air pipe joints (27) are provided at the bottom of the detection beam (22). The plurality of air pipe joints (27) are connected to the suction channels (25) of the plurality of hollow suction rods (24) in a one-to-one correspondence. The air pipe joints (27) are externally connected to the detection air pipe and the suction air pipe. The end of the detection air pipe is connected to a pressure difference sensor. A valve is provided on the suction air pipe, and the end of the suction air pipe is connected to a negative pressure air source.

2. The multi-channel, fully automatic cigar draw resistance detection device according to claim 1, characterized in that: The device also includes a sorting unit, which is located below the clamping detection unit. The sorting unit includes a qualified sample collection box (37) and an unqualified sample collection box (38) arranged in front and back.

3. The multi-channel, fully automatic cigar draw resistance detection device according to claim 1, characterized in that: The clamping assembly (20) comprises an inner clamping tube (28) and an outer mounting tube (29) which are sleeved together. The outer mounting tube (29) is fixedly connected to the mounting plate (18), and the inner clamping tube (28) is detachably connected to the outer mounting tube (29). An elastic tube is provided in the inner hole of the inner clamping tube (28), and the upper and lower ends of the elastic tube are respectively fixed to the upper and lower ends of the inner clamping tube (28). A plurality of air holes (30) are provided on the inner clamping tube (28). A closed annular gap (31) is formed between the inner clamping tube (28) and the outer mounting tube (29). By introducing negative pressure gas into the annular gap (31), the elastic tube expands and is adsorbed on the inner side wall of the inner clamping tube (28); when the negative pressure gas in the annular gap (31) is disconnected, the elastic tube automatically retracts and wraps around the outer side wall of the sample and the outer side wall of the hollow suction rod (24).

4. The multi-channel, fully automatic cigar draw resistance detection device according to claim 3, characterized in that: The top of the inner clamping cylinder (28) extends above the outer mounting cylinder (29) and is fixed with a rotary cover (32). The rotary cover (32) is provided with a convex ring (33) extending downward. The convex ring (33) is located on the periphery of the outer mounting cylinder (29). A locking protrusion (34) is provided at the top of the outer wall of the outer mounting cylinder (29). The convex ring (33) is provided with a clamping groove (35) clamped with the locking protrusion (34). An introduction groove (36) is opened at the bottom of one end of the clamping groove (35). The introduction groove (36) passes through the bottom end surface of the convex ring (33). The widths of the locking protrusion (34), the introduction groove (36) and the clamping groove (35) increase in sequence.

5. The multi-channel fully automatic cigar draw resistance detection device according to claim 3, characterized in that: The upper and lower sections of the outer side wall of the inner clamping tube (28) are respectively provided with sealing rings, and the upper and lower ends of the annular gap (31) between the inner clamping tube (28) and the outer mounting tube (29) are sealed by the upper and lower sealing rings.

6. The multi-channel fully automatic cigar draw resistance detection device according to claim 1, characterized in that: The blanking unit comprises a movable blanking part and a fixed blanking part (14) arranged relative to each other in front and back, the fixed blanking part (14) is fixedly mounted on the frame (1), the movable blanking part comprises two movable blanking doors (15) which are split into two parts, the ends of the two movable blanking doors (15) which are separated from each other are hinged to the left and right ends of the fixed blanking part (14), the two movable blanking doors (15) and the fixed blanking part (14) are respectively adsorbed together by magnetic attraction, a plurality of rear half blanking slots (16) are provided on the front side of the fixed blanking part (14), a plurality of front half blanking slots (17) are provided on the rear side of the two movable blanking doors (15), and the plurality of rear half blanking slots (16) and the plurality of front half blanking slots (17) are matched one by one to form the plurality of blanking channels (13).

7. The multi-channel, fully automatic cigar draw resistance detection device according to claim 1, characterized in that: The movable loading platform (2) is driven to move forward and backward by a first driving mechanism, the first driving mechanism comprising a first motor (4) and a first linear module (5), and the first motor (4) drives the movable loading platform (2) to move forward and backward via the first linear module (5).

8. The multi-channel fully automatic cigar draw resistance detection device according to claim 1, characterized in that: The detection beam (22) is driven to slide vertically on the mounting plate (18) by a second driving mechanism, the second driving mechanism comprising a second motor and a second linear module, and the second motor drives the detection beam (22) to move vertically on the mounting plate (18) via the second linear module.

9. The multi-channel fully automatic cigar draw resistance detection device according to claim 1, characterized in that: The left and right ends of the mounting plate (18) are respectively provided with rotating shafts (19), and the two rotating shafts (19) are respectively rotatably mounted on the frame (1). The mounting plate (18) is driven by a third motor to rotate around the axis of the rotating shaft (19).

10. The multi-channel fully automatic cigar draw resistance detection device according to claim 1, characterized in that: The detection crossbeam (22) is provided with a mounting groove for inserting the bottom of the hollow suction rod (24), and a sealing gasket (26) is provided in the mounting groove to seal the gap between the outer wall of the hollow suction rod (24) and the inner wall of the mounting groove.

Images