An automatic screening device for detecting cigarette wrapping paper

Abstract

The present invention belongs to the technical field of detection equipment, and particularly relates to a cigarette wrapping paper detection device for automatic screening, which includes a transmission mechanism, a distance measurement mechanism, and a rejection mechanism. The distance measurement mechanism is installed on the transmission mechanism, and the rejection mechanism is installed on one side of the transmission mechanism and closely behind the distance measurement mechanism. The rejection mechanism includes a support frame, a second motor, a connecting pipe, a connecting rope, and a rotating column, which is used to solve the problem that when the existing strip boxes and hard boxes are subjected to in-plant inspection, the method of manually taking out unqualified products by workers increases the work intensity of the workers. After working for a long time, it is easy to cause fatigue of the workers and is prone to accidental dangers.

Description

Technical Field

[0001] The present invention belongs to the technical field of detection equipment, and particularly relates to a cigarette wrapping paper detection device for automatic screening. Background Art

[0002] With the development of society, the tobacco industry has also developed vigorously. While paying attention to the taste of cigarettes, the outer packaging of cigarettes has also received more and more attention.

[0003] The cigarette boxes are generally divided into hard boxes and soft boxes. Generally, both hard boxes and soft boxes will finally be put into cartons. Corresponding signs and patterns will be printed on the outer surfaces of cartons, hard boxes and soft boxes. However, the inner surfaces of cartons and hard boxes will be processed again. Cartons and hard boxes are generally made of white cardboard, with traces pressed out by machinery and then folded along the corresponding traces. Finally, they are folded along the creases into the shapes of hard boxes and cartons. During the folding process, if the depth and width of the creases do not meet the corresponding standards, it is not easy to fold into regular cigarette boxes, and the adhesive joints are prone to cracking. Therefore, when the wrapping papers of hard boxes and cartons enter the factory, the creases will be detected to see if they meet the standards. Currently, in cigarette factories, when detecting the creases during incoming inspection, generally the unfolded cartons and hard boxes are detected by a ranging device. When unqualified products pass through the ranging device, it is necessary to manually take out the unqualified products and place them at the unqualified product location to avoid confusion with qualified products. The method of manually taking out unqualified products by hand increases the working intensity of the staff. After working for a long time, it is easy to cause fatigue of the staff and prone to accidental dangers. Summary of the Invention

[0004] The purpose of the present invention is to provide a cigarette wrapping paper detection device for automatic screening, which is used to solve the problems that when the existing cartons and hard boxes are inspected during incoming inspection, the method of manually taking out unqualified products by hand increases the working intensity of the staff. After working for a long time, it is easy to cause fatigue of the staff and prone to accidental dangers.

[0005] To achieve the above technical purpose, the technical solution adopted by the present invention is as follows:

[0006] An automatic screening device for cigarette wrapping paper, comprising a transmission mechanism, a ranging mechanism and a rejection mechanism. The ranging mechanism is installed on the transmission mechanism. The rejection mechanism is installed on one side of the transmission mechanism and is closely behind the ranging mechanism. The rejection mechanism includes a support frame, a second motor, a connecting pipe, a connecting rope and a rotating column. A mounting seat is fixedly installed on the support frame. The second motor is fixedly installed on the mounting seat. A second support block is fixedly installed on the support frame. One end of the rotating column is rotatably installed on the support frame, and the other end rotatably passes through the second support block. The output shaft of the second motor is fixedly connected to the end of the rotating column passing through the second support block. A notch is formed on the transmission mechanism, and the position of the support frame corresponds to the notch. A first through hole is formed on the support frame. One end of the connecting pipe passes through the first through hole. The connecting pipe is opposite to the middle of the notch. The other end of the connecting pipe is located outside the limiting plate. Two connecting arms are fixedly installed on the connecting pipe. The connecting arms are screwed on the limiting plate. A sealing plate is installed at the other end of the connecting pipe. A spring is installed inside the connecting pipe. A sliding plate is installed inside the connecting pipe. One end of the spring is fixedly connected to the bottom of the connecting pipe, and the other end is fixedly connected to the sliding plate. A first sliding groove is formed on the connecting pipe. A pushing plate is fixedly installed on the sliding plate. The end of the pushing plate is flush with the transmission mechanism. The pushing plate is slidably installed in the first sliding groove. A connecting column is fixedly installed on the sliding plate. The end of the connecting column is fixedly connected to a pull ring. One end of the connecting rope is fixedly tied to the pull ring, and the other end passes through the sealing plate and is wound around the rotating column.

[0007] Further defined, a buffer assembly is fixedly installed at the position of the notch on the output mechanism. The buffer assembly includes a first buffer plate and a second buffer plate. The second buffer plate is slidably installed in the first buffer plate. Second sliding grooves are formed on both sides of the first buffer plate. A threaded column is fixedly installed on the second buffer plate. The threaded column passes through the second sliding groove. A nut is screwed on the threaded column. With this setting, by screwing the nut on the threaded column, the length of the second buffer plate in the first buffer plate can be adjusted, so as to prevent the end of the second buffer plate from abutting against unqualified strip boxes or hard boxes, which affects subsequent entry.

[0008] Further defined, a first collection box is installed on the bottom plate. The end of the buffer assembly is located inside the first collection box. With this setting, by having the end of the buffer assembly located inside the first collection box, it is avoided that when the strip box or hard box is pushed out of the notch, it directly falls into the first collection box and causes damage. At the same time, when the strip box or hard box is on the buffer assembly, it is convenient for the staff to take it out for re-inspection.

[0009] Further limitation: The transmission mechanism includes a bottom plate, four mounting blocks, a first belt, two rotating shafts and a first motor. The four mounting blocks are fixedly installed on the bottom plate and are pairwise opposed. The two rotating shafts are respectively rotatably installed on two opposed mounting blocks. The first belt is tensioned on the two rotating shafts. A connecting rod is fixedly installed outside the mounting block on one of the rotating shafts. A first turntable is fixedly installed on the connecting rod. The first motor is fixedly installed on the bottom plate. A first support block is fixedly installed on the bottom plate. The output shaft of the first motor passes through the first support block. A second turntable is fixedly installed outside the first support block on the output shaft of the first motor. A second belt is tensioned between the first turntable and the second turntable. With such a setting, when the first motor is started, it drives the second belt to rotate. The rotation of the second belt drives the first turntable to rotate, thereby driving the first belt to rotate.

[0010] Further limitation: A cover body is installed on the bottom plate at the position of the first motor. With such a setting, the first motor and the second belt are covered by the cover body to prevent external impurities from affecting the use of the first motor.

[0011] Further limitation: Two limiting plates are installed on the bottom plate. The two limiting plates are respectively located on both sides of the first belt. With such a setting, it is avoided that the unfolded hard box paper or unfolded strip box paper placed on the first belt accidentally slides out of the first belt.

[0012] Further limitation: The distance measuring mechanism includes a mounting frame, a cover plate, a distance measuring instrument, a position sensor and two fixing plates. The two fixing plates are fixedly installed on the bottom plate. The mounting frame is installed on the two fixing plates. First threaded holes are opened on the mounting frame at the positions of the two fixing plates. A plurality of mounting holes are opened on the mounting frame. Two sets of transmitting ends are installed on the distance measuring instrument. The two sets of transmitting ends are respectively used to test the creases of the strip box and the hard box. The two sets of transmitting ends respectively pass through the mounting holes. The transmitting end includes a transmitting tube and a receiving tube. One transmitting tube corresponds to four receiving tubes. A housing is installed on the transmitting tube and the receiving tube. The housing is fixedly connected to the distance measuring instrument. An ear plate is fixedly installed on the distance measuring instrument. A second threaded hole is opened on the ear plate. A third threaded hole is opened on the mounting frame at the position corresponding to the second threaded hole. The position sensor is fixedly installed on the mounting frame and is opposite to the position of the first belt. A control panel is installed on the mounting frame. Two warning lights are installed on the mounting frame. One warning light is red and the other is green. The position sensor, the first motor, the second motor, the distance measuring instrument and the warning lights are all electrically connected to the control panel. With such a setting, the control panel can control the operation of the position sensor, the first motor, the distance measuring instrument and the warning lights, and respectively test the strip box and the hard box on the same device, give an alarm for unqualified products, and can also detect whether there are cracks at the crease, saving resources and being more user-friendly.

[0013] Further limitation: A rubber cushion plate is installed between the rangefinder and the mounting bracket. A plurality of shaft holes are provided on the cushion plate, and the positions of the shaft holes correspond to those of the mounting holes. The transmitting end passes through the shaft holes. With this arrangement, the rubber cushion plate prevents the direct contact between the rangefinder and the mounting bracket, so that once the mounting bracket vibrates, the rangefinder is not easily damaged.

[0014] Further limitation: A second collection box is installed on the bottom plate. The second collection box is located at the end of the first belt. A handle is fixedly installed on the second collection box. With this arrangement, the second collection box can store qualified strip boxes or hard boxes, and the handle facilitates the movement of the second collection box.

[0015] Further limitation: A placement plate is provided on the first belt. A placement groove is provided on the placement plate, and the placement groove is located at the center of the placement plate. With this arrangement, the hard box is prevented from shaking on the first belt, so that when the placement plate passes through the rangefinder, the crease of the hard box can be detected.

[0016] The invention adopting the above technical solution has the following advantages:

[0017] 1. Through the mutual cooperation of the transmission mechanism, the ranging mechanism and the rejection structure, the crease surface detection of the strip box and the hard box can be completed, and the unqualified products can be automatically rejected, reducing the labor intensity of the staff and avoiding confusion caused by the failure of the staff to take out the unqualified products in time.

[0018] 2. By installing two sets of transmitting ends on the rangefinder so that they can correspond to the crease surfaces of the strip box and the hard box, controlling the operation of the transmitting ends through the control panel, and installing two warning lights on the ranging mechanism, the ranging mechanism can cooperate with the rangefinder to detect the strip box and the hard box. When both are qualified, the green light is on, and when unqualified, the red light is on, thus reminding the staff and avoiding the confusion between qualified products and unqualified products caused by fatigue after long-term work of the staff.

[0019] 3. By installing a buffer assembly at the unqualified product outlet, the unqualified products can move on the buffer assembly. On the one hand, it avoids direct dropping, which is likely to cause damage to the unqualified products and make them unable to be reused. On the other hand, moving on the buffer assembly facilitates the staff to pick up for re-inspection.

[0020] 4. By installing a first collection box at the unqualified product location and a second collection box at the qualified product location, it is convenient for the collection of both and avoids direct dropping. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention can be further illustrated by the non-limiting embodiments given in the drawings;

[0022] Figure 1 is a schematic structural diagram of an embodiment of an automatic screening cigarette packaging paper detection device of the present inventionFigure 1 ;

[0023] Figure 2 This is a schematic structural diagram of an embodiment of an automatic screening cigarette wrapping paper detection device of the present invention Figure 2 ;

[0024] Figure 3 is Figure 2 an enlarged structural schematic diagram at position A in

[0025] Figure 4 This is a structural schematic diagram of removing the cover in an embodiment of an automatic screening cigarette wrapping paper detection device of the present invention;

[0026] Figure 5 This is a sectional structural schematic diagram of an embodiment of an automatic screening cigarette wrapping paper detection device of the present invention;

[0027] Figure 6 is Figure 5 an enlarged structural schematic diagram at position B in

[0028] Figure 7 This is a structural schematic diagram of the connecting pipe part in an embodiment of an automatic screening cigarette wrapping paper detection device of the present invention;

[0029] Figure 8 This is a split structural schematic diagram of the distance measuring mechanism in an embodiment of an automatic screening cigarette wrapping paper detection device of the present invention;

[0030] Figure 9 This is a sectional structural schematic diagram of the rangefinder in an embodiment of an automatic screening cigarette wrapping paper detection device of the present invention;

[0031] Figure 10 This is a structural schematic diagram of the placement plate in an embodiment of an automatic screening cigarette wrapping paper detection device of the present invention;

[0032] The main component symbols are explained as follows:

[0033] Base plate 1, mounting block 11, rotating shaft 12, connecting rod 121, first turntable 122, first belt 13, cover body 14, limiting plate 15, notch 151, fixing plate 16, first motor 17, first support block 171, second turntable 172, second belt 18

[0034] Distance measuring mechanism 2, first threaded hole 201, second threaded hole 202, mounting hole 203, mounting frame 21, cover plate 22, rangefinder 23, housing 231, transmitting tube 232, receiving tube 233, ear plate 24, position sensor 25, control panel 26, warning light 27, backing plate 29, shaft hole 291

[0035] Rejection mechanism 3, support frame 31, first through hole 311, connecting pipe 32, sealing plate 321, spring 322, first chute 323, connecting arm 33, mounting seat 34, second motor 35, second support block 351, rotating column 36, connecting rope 37, sliding plate 38, connecting column 381, pull ring 382, push plate 39

[0036] Second collection box 4, handle 41, first buffer plate 5, second buffer plate 51, threaded column 511, nut 512, first collection box 6, placement plate 7, placement groove 71. Detailed implementation mode

[0037] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that in the description of the drawings or the specification, similar or identical parts are all denoted by the same reference numerals. The implementation manners not shown or described in the drawings are in the forms known to those of ordinary skill in the art. In addition, the directional terms mentioned in the embodiments, such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", etc., are only references to the directions of the drawings and are not used to limit the protection scope of the present invention.

[0038] As Figures 1 to 10 shown, an automatic screening cigarette wrapper detection device of the present invention includes a transmission mechanism, a distance measuring mechanism 2 and a rejection mechanism 3. The distance measuring mechanism 2 is installed on the transmission mechanism, and the rejection mechanism 3 is installed on one side of the transmission mechanism and is closely adjacent to the rear of the distance measuring mechanism 2.

[0039] The transmission mechanism includes a bottom plate 1, four mounting blocks 11, a first belt 13, two rotating shafts 12, and a first motor 17. The four mounting blocks 11 are fixedly installed on the bottom plate 1 and are opposed in pairs. The two rotating shafts 12 are respectively rotatably installed on two opposed mounting blocks 11, and the first belt 13 is tensioned on the two rotating shafts 12. A connecting rod 121 is fixedly installed outside the mounting block 11 on one of the rotating shafts 12, and a first turntable 122 is fixedly installed on the connecting rod 121. The first motor 17 is fixedly installed on the bottom plate 1, and a first support block 171 is fixedly installed on the bottom plate 1. The output shaft of the first motor 17 passes through the first support block 171, and a second turntable 172 is fixedly installed outside the first support block 171 on the output shaft of the first motor 17. A second belt 18 is tensioned between the first turntable 122 and the second turntable 172. By starting the first motor 17, the second belt 18 is driven to rotate, and the rotation of the second belt 18 drives the first turntable 122 to rotate, thereby driving the first belt 13 to rotate. A housing 14 is installed on the bottom plate 1 at the position of the first motor 17, and the first motor 17 and the second belt 18 are covered by the housing 14 to prevent external impurities from affecting the use of the first motor 17. Two limiting plates 15 are installed on the bottom plate 1, and the two limiting plates 15 are respectively located on both sides of the first belt 13 to prevent the unfolded hard box paper or unfolded strip box paper placed on the first belt 13 from accidentally sliding out of the first belt 13.

[0040] The distance measuring mechanism 2 includes a mounting bracket 21, a cover plate 22, a distance measuring instrument 23, a position sensor 25, and two fixing plates 16. The two fixing plates 16 are fixedly installed on the bottom plate 1, and the mounting bracket 21 is installed on the two fixing plates 16. The mounting bracket 21 is provided with first threaded holes 201 at the positions of the two fixing plates 16, and the mounting bracket 21 is fixed on the two fixing plates 16 by screwing bolts into the first threaded holes 201. The mounting bracket 21 is provided with a plurality of mounting holes 203. Two sets of transmitting ends are installed on the distance measuring instrument 23, and the two sets of transmitting ends are respectively used to test the creases of strip cartons and hard cartons. The two sets of transmitting ends are respectively inserted into the mounting holes 203. A rubber cushion plate 29 is installed between the distance measuring instrument 23 and the mounting bracket 21. The cushion plate 29 is provided with a plurality of shaft holes 291, and the positions of the shaft holes 291 correspond to those of the mounting holes 203. The transmitting ends pass through the shaft holes 291. Through the rubber cushion plate 29, it is avoided that the distance measuring instrument 23 is in direct contact with the mounting bracket 21, so that once the mounting bracket 21 vibrates, the distance measuring instrument 23 is easily damaged. The transmitting end includes a transmitting tube 232 and a receiving tube 233. One transmitting tube 232 corresponds to four receiving tubes 233, so that as much of the emitted light can be received after reflection. A housing 231 is installed on the transmitting tube 232 and the receiving tube 233, and the housing 231 is fixedly connected to the distance measuring instrument 23 to prevent external dust and other impurities from affecting the transmitting tube 232 and the receiving tube 233. An ear plate 24 is fixedly installed on the distance measuring instrument 23. The ear plate 24 is provided with a second threaded hole 202. A third threaded hole is provided at the position of the mounting bracket 21 corresponding to the second threaded hole 202. The distance measuring instrument 23 is fixedly installed in the mounting bracket 21 by screwing bolts into the second threaded hole 202 and the third threaded hole. The position sensor 25 is fixedly installed on the mounting bracket 21 and is opposite to the position of the first belt 13, so that the position sensor 25 can detect whether the unfolded hard carton paper or the unfolded strip carton paper enters the test range of the distance measuring instrument. A control panel 26 is installed on the mounting bracket 21. Two warning lights 27 are installed on the mounting bracket 21. One warning light 27 is red and the other is green. The position sensor 25, the first motor 17, the distance measuring instrument 23, and the warning lights 27 are all electrically connected to the control panel 26. The operation of the position sensor 25, the first motor 17, the distance measuring instrument 23, and the warning lights 27 can be controlled through the control panel 26. The cover plate 22 is fixedly installed on the mounting bracket 21 by screws.

[0041] The removing mechanism 3 includes a support frame 31, a second motor 35, a connecting pipe 32, a connecting rope 37 and a rotating column 36. The support frame 31 is fixedly installed on the bottom plate 1. An installation seat 34 is fixedly installed on the support frame 31. The second motor 35 is fixedly installed on the installation seat 34. A second support block 351 is fixedly installed on the support frame 31. One end of the rotating column 36 is rotatably installed on the support frame 31, and the other end rotatably passes through the second support block 351. The output shaft of the second motor 35 is fixedly connected to the end of the rotating column 36 that passes through the second support block 351. Notches 151 are formed in both of the two limiting plates 15. The position of the support frame 31 corresponds to the notches 151. A first through hole 311 is formed in the support frame 31. One end of the connecting pipe 32 passes through the first through hole 311. The connecting pipe 32 faces the middle of the notch 151. The other end of the connecting pipe 32 is located outside the limiting plate 15. Two connecting arms 33 are fixedly installed on the connecting pipe 32. The connecting arms 33 are screwed to the limiting plate 15 by screws. Through the cooperation of the connecting arms 33 and the first through hole 311, the connecting pipe 32 is fixedly installed on the limiting plate 15 and the support frame 31. The second motor 35 is electrically connected to the control panel 26.

[0042] A sealing plate 321 is installed at the other end of the connecting pipe 32. A spring 322 is installed inside the connecting pipe 32. A sliding plate 38 is installed inside the connecting pipe 32. One end of the spring 322 is fixedly connected to the bottom of the connecting pipe 32, and the other end is fixedly connected to the sliding plate 38. A first sliding groove 323 is formed in the connecting pipe 32. A pushing plate 39 is fixedly installed on the sliding plate 38. The end of the pushing plate 39 is flush with the first belt 13. The pushing plate 39 is slidably installed in the first sliding groove 323. A connecting column 381 is fixedly installed on the sliding plate 38. A pull ring 382 is fixedly connected to the end of the connecting column 381. One end of the connecting rope 37 is fixedly tied to the pull ring 382, and the other end passes through the sealing plate 321 and is wound around the rotating column 36. By starting the second motor 35, the rotating column 36 is driven to rotate. The rotating column 36 rotates and winds the connecting rope 37, causing the connecting rope 37 to contract, stretching the spring 322, and making the pushing plate 39 located in one of the notches 151. When there is a strip box or a hard box to be removed, the second motor 35 is started to reversely rotate the rotating column 36, so that the connecting rope 37 is released, and the spring 322 restores its deformation, thereby driving the pushing plate 39 to push the strip box or the hard box out of the other notch 151.

[0043] A buffer assembly is fixedly installed on the limiting plate 15 at the position of the notch 151. When the strip box or the hard box is pushed out of the notch 151, it moves along the buffer assembly. A first collection box 6 is installed on the bottom plate 1, and the end of the buffer assembly is located inside the first collection box 6, preventing the strip box or the hard box from directly falling into the first collection box 6 when being pushed out of the notch 151 and causing damage to the strip box or the hard box. When the strip box or the hard box is on the buffer assembly, it is convenient for the staff to take it out for re-inspection. The buffer assembly includes a first buffer plate 5 and a second buffer plate 51. The second buffer plate 51 is slidably installed inside the first buffer plate 5. Second sliding grooves 52 are formed on both sides of the first buffer plate 5. A threaded column 511 is fixedly installed on the second buffer plate 51. The threaded column 511 passes through the second sliding groove 52, and a nut 512 is screwed on the threaded column 511. By screwing the nut 512 on the threaded column 511, the length of the second buffer plate 51 inside the first buffer plate 5 can be adjusted, thus preventing the end of the second buffer plate 51 from abutting against the unqualified strip box or hard box and affecting subsequent entry.

[0044] A second collection box 4 is installed on the bottom plate 1. The second collection box 4 is located at the end of the first belt 13, and the qualified strip boxes or hard boxes can be stored through the second collection box 4. A handle 41 is fixedly installed on the second collection box 4, and it is convenient to move the second collection box 4 through the handle 41. When it is necessary to test the crease of the hard box, a placement plate 7 is arranged on the first belt 13. A placement groove 71 is formed on the placement plate 7, and the placement groove 71 is located at the center of the placement plate 7, so that when the placement plate 7 passes through the distance measuring instrument 23, the crease of the hard box can be detected.

[0045] In this embodiment, when used to test the crease of the strip box, the unfolded strip box is placed on the first belt 13. The first motor 17 is started through the control panel 26, and the transmitting end for strip box testing is selected through the control panel 26. The position sensor 25 is started. When the strip box reaches the distance measuring mechanism 2, the position sensor 25 transmits the reached signal to the control panel 26. After receiving the signal, the control panel 26 starts the distance measuring instrument 23, and the transmitting end for the strip box is started to test whether the crease of the strip box meets the standard. If it meets the standard, the green warning light lights up, and the first motor 17 continues to work, and the strip box is transported to the second collection box 4 through the first belt 13. When the crease of the strip box does not meet the standard, the red warning light lights up to remind the staff. The second motor 35 is started, the second motor 35 rotates, drives the rotating column 36 to rotate, releases the connecting rope 37, and the spring 322 resumes deformation, thereby driving the push plate 39 to push the strip box or the hard box out of another notch 151. The strip box enters the buffer assembly through the notch 151 for manual re-inspection. If it is still unqualified after re-inspection, it is put into the first collection box 6. The operation process is simple and convenient, and the detection efficiency of the crease of the strip box is improved;

[0046] After the push plate 39 pushes the strip box into the buffer assembly, the second motor 35 reverses to drive the rotating column 36 to wind the connecting rope 37, thereby stretching the spring 322 to reset the push plate 39 for the next operation.

[0047] When testing the hard box, place the unfolded hard box in the placement groove 71. Start the first motor 17 through the control panel 26. The testing steps and the rejection steps are the same as those when testing the strip box. The difference is that when a non-conforming product is detected, the push plate 39 pushes the placement plate 7 and the unfolded hard box out of the notch 151 together. After the qualified products and the placement plate 7 fall into the second collection box 4 together, it is necessary to manually take out the unfolded hard box from the placement plate 7.

[0048] The above has introduced in detail an automatic screening cigarette wrapper detection device provided by the present invention. The description of the specific embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An automatic screening cigarette packaging paper detection device, Features: It includes a transmission mechanism, a distance measuring mechanism and a rejection mechanism, wherein the distance measuring mechanism is installed on the transmission mechanism, and the rejection mechanism is installed on one side of the transmission mechanism and is close to the rear of the distance measuring mechanism; The rejecting mechanism comprises a support frame, a second motor, a connecting pipe, a connecting rope and a rotating column, wherein a mounting seat is fixedly mounted on the support frame, the second motor is fixedly mounted on the mounting seat, a second supporting block is fixedly mounted on the support frame, one end of the rotating column is rotatably mounted on the support frame, and the other end is rotatably passed through the second supporting block, and the output shaft of the second motor is fixedly connected to one end of the rotating column passing through the second supporting block; The transmission mechanism is provided with a notch, the position of the support frame corresponds to the notch, the support frame is provided with a first through hole, one end of the connecting pipe passes through the first through hole, the connecting pipe is directly opposite to the middle of the notch, the other end of the connecting pipe is located outside the limiting plate, two connecting arms are fixedly installed on the connecting pipe, the connecting arms are screwed on the limiting plate, a sealing plate is installed at the other end of the connecting pipe, a spring is installed in the connecting pipe, a sliding plate is installed in the connecting pipe, one end of the spring is fixedly connected to the bottom of the connecting pipe, and the other end is fixedly connected to the sliding plate; The connecting pipe is provided with a first slide groove, a push plate is fixedly installed on the sliding plate, the end of the push plate is flush with the transmission mechanism, the push plate is slidably installed in the first slide groove, a connecting column is fixedly installed on the sliding plate, the end of the connecting column is fixedly connected with a pull ring, one end of the connecting rope is fixedly bolted to the pull ring, and the other end passes through the sealing plate and is wound around the rotating column; The transmission mechanism includes a base plate, four mounting blocks, a first belt, two rotating shafts and a first motor, the four mounting blocks are fixedly mounted on the base plate and are opposed to each other in pairs, two rotating shafts are rotatably mounted on two opposing mounting blocks respectively, the first belt is tensioned on the two rotating shafts, one of the rotating shafts is fixedly mounted with a connecting rod outside the mounting block, a first rotating disk is fixedly mounted on the connecting rod, the first motor is fixedly mounted on the base plate, a first supporting block is fixedly mounted on the base plate, an output shaft of the first motor passes through the first supporting block, a second rotating disk is fixedly mounted on the output shaft of the first motor outside the first supporting block, and a second belt is tensioned between the first rotating disk and the second rotating disk; The distance measuring mechanism comprises a mounting frame, a cover plate, a distance meter, a position sensor and two fixing plates, the two fixing plates are fixedly mounted on the bottom plate, the mounting frame is mounted on the two fixing plates, a first threaded hole is opened on the mounting frame at the position of the two fixing plates, a plurality of mounting holes are opened on the mounting frame, and two sets of transmitting ends are installed on the distance meter, and the two sets of transmitting ends are used to test the folds of the strip box and the hard box respectively; Two groups of the said transmitting ends are respectively inserted into the mounting holes. The transmitting end includes a transmitting tube and a receiving tube. One transmitting tube corresponds to four receiving tubes. A housing is installed on the transmitting tube and the receiving tube. The housing is fixedly connected to the rangefinder. An ear plate is fixedly installed on the rangefinder. A second threaded hole is opened on the ear plate. A third threaded hole is opened on the mounting frame at a position corresponding to the second threaded hole. The position sensor is fixedly installed on the mounting frame and is opposite to the position of the first belt. A control panel is installed on the mounting frame. Two warning lights are installed on the mounting frame. One warning light is red and the other is green. The position sensor, the first motor, the second motor, the rangefinder and the warning lights are all electrically connected to the control panel.

2. An automatic screening cigarette wrapping paper detection device according to claim 1, characterized in that: A buffer assembly is fixedly installed on the transmission mechanism at the position of the notch. The buffer assembly includes a first buffer plate and a second buffer plate. The second buffer plate is slidably installed in the first buffer plate. Second sliding grooves are opened on both sides of the first buffer plate. A threaded column is fixedly installed on the second buffer plate. The threaded column passes through the second sliding groove. A nut is screwed on the threaded column.

3. An automatic screening cigarette wrapping paper detection device according to claim 2, characterized in that: A first collection box is installed on the bottom plate. The end of the buffer assembly is located in the first collection box.

4. An automatic screening cigarette wrapping paper detection device according to claim 1, characterized in that: A cover body is installed on the bottom plate at the position of the first motor.

5. An automatic screening cigarette wrapping paper detection device according to claim 1, characterized in that: Two limiting plates are installed on the bottom plate. The two limiting plates are respectively located on both sides of the first belt.

6. An automatic screening cigarette wrapping paper detection device according to claim 1, characterized in that: A rubber cushion plate is installed between the rangefinder and the mounting frame. A plurality of shaft holes are opened on the cushion plate. The positions of the shaft holes correspond to the mounting holes. The transmitting end passes through the shaft holes.

7. An automatic screening cigarette wrapping paper detection device according to claim 1, characterized in that: A second collection box is installed on the bottom plate. The second collection box is located at the end of the first belt. A handle is fixedly installed on the second collection box.

8. An automatic screening cigarette wrapping paper detection device according to claim 1, characterized in that: A placement plate is arranged on the first belt. A placement groove is opened on the placement plate. The placement groove is located at the center of the placement plate.

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