A filter rod launching tube unblocking device and an unblocking method thereof

Abstract

The application provides a filter rod emission tube dredging device and a dredging method thereof, wherein the filter rod emission tube dredging device comprises a controller, a transverse moving device, a light barrier photoelectric switch for detecting whether the filter rod emission tube is blocked, and the transverse moving device is arranged between the light barrier photoelectric switch and a receiver; the transverse moving device comprises a transverse moving driving element, a transverse moving sliding block and a transverse moving guide rail, the transverse moving guide rail is provided with an inverted T-shaped groove, and the transverse moving driving element is used for driving the transverse moving sliding block to slide in the horizontal groove of the inverted T-shaped groove; the transverse moving sliding block is provided with a first connecting hole, the groove bottom of the inverted T-shaped groove is provided with a second connecting hole and a dredging hole; the light barrier photoelectric switch, the transverse moving driving element and a gas supply system of the transmitter are electrically connected with the controller; and the transverse moving sliding block has a working position and a dredging position, the first connecting hole is opposite to the second connecting hole when the transverse moving sliding block is in the working position, and the first connecting hole is opposite to the dredging hole when the transverse moving sliding block is in the dredging position. The application can effectively reduce the labor intensity of the operator and improve the efficiency of the dredging operation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cigarette manufacturing, and particularly relates to a filter rod launching tube dredging device and a dredging method thereof. BACKGROUND

[0002] The YF27A type filter rod pneumatic conveying device is mainly used on a cigarette making line, and its basic function is to convey filter rods conveyed by an upstream machine at high speed and over a long distance to downstream multiple high-speed cigarette making machine groups. However, the filter rod launching tube is prone to blockage in the production process, and when the blockage is serious, it can cause insufficient supply of filter rods and lead to shutdown. The cigarette operator must pull out the filter rod launching tube for dredging, and communicate with the launching worker to blow the filter rod launching tube in the forward and reverse directions for multiple times to dredge it, so that the labor intensity of the operator is large, the efficiency of dredging operation is low, and the effective operation rate of the equipment is greatly affected. Meanwhile, the operator needs to dredge above the cigarette equipment, which has a great safety hazard. Therefore, how to design a filter rod launching tube dredging device and a dredging method thereof to realize automatic dredging of the filter rod launching tube, reduce the labor intensity of the operator, improve the efficiency of dredging operation, and ensure the personal safety of the operator has become a technical problem that technicians in the field urgently need to solve. SUMMARY

[0003] The application aims to provide a filter rod launching tube dredging device to solve the above technical problems in the prior art. Another object of the application is to provide a filter rod launching tube dredging method.

[0004] To achieve the above object, the application provides the following technical solutions.

[0005] A filter rod launching tube dredging device, comprising a controller, a transverse moving device, a pair of photoelectric switches for detecting whether the filter rod launching tube is blocked, the pair of photoelectric switches being arranged close to the receiver of the filter rod pneumatic conveying device, the transverse moving device being arranged between the pair of photoelectric switches and the receiver; the transverse moving device comprises a transverse moving driving member, a transverse moving slider and a transverse moving guide rail, the transverse moving guide rail being connected with the outer cover of the receiver through a mounting frame, the transverse moving driving member being arranged at one end of the transverse moving guide rail, the transverse moving guide rail being provided with a reversed T-shaped groove, the extending direction of the reversed T-shaped groove being perpendicular to the filter rod launching tube, the transverse moving slider being in sliding fit with the horizontal groove of the reversed T-shaped groove, the transverse moving driving member being used for driving the transverse moving slider to slide in the horizontal groove; the transverse moving slider is provided with a first connecting hole for being connected with the filter rod launching tube located above the transverse moving guide rail, the groove bottom of the reversed T-shaped groove is provided with a second connecting hole for being connected with the filter rod launching tube located below the transverse moving guide rail and a dredging hole close to the second connecting hole; the lower side surface of the transverse moving slider is in abutment with the groove bottom, the pair of photoelectric switches, the transverse moving driving member and the gas supply system of the receiver are respectively electrically connected with the controller; the transverse moving slider has a working position and a dredging position, when the transverse moving slider is in the working position, the first connecting hole is opposite to the second connecting hole, when the transverse moving slider is in the dredging position, the first connecting hole is opposite to the dredging hole.

[0006] Preferably, the transverse moving driving member is a transverse moving cylinder, the transverse moving device further comprises a transverse moving connecting block, the lower end of the transverse moving connecting block being connected with the transverse moving slider, the upper end of the transverse moving connecting block being connected with the cylinder rod of the transverse moving cylinder through the vertical groove of the reversed T-shaped groove.

[0007] Preferably, the transverse moving driving member is arranged at the left end of the transverse moving guide rail, the dredging hole is a U-shaped hole with the opening facing right.

[0008] Preferably, it further comprises a back-blowing device arranged between the transverse moving device and the opposite light photoelectric switch, the back-blowing device comprising a support box, a sliding block, a back-blowing driving mechanism, a first mounting hole for connecting with the filter rod emitting tube arranged above the support box is arranged on the upper side plate of the support box, a second mounting hole for connecting with the filter rod emitting tube arranged below the support box is arranged on the lower side plate of the support box, the first mounting hole is opposite to the second mounting hole; a gas supply hole for connecting with a gas supply device is further arranged on the lower side plate of the support box; the sliding block is slidingly arranged in the support box, the upper side wall and the lower side wall of the sliding block are respectively fitted with the inner wall surface of the upper side plate and the lower side plate, a vertical through hole for connecting the first mounting hole with the second mounting hole and an inclined through hole for connecting the first mounting hole with the gas supply hole are arranged in the sliding block; the back-blowing driving mechanism is used for driving the sliding block to slide in the support box, the sliding block has a first position and a second position in the support box, when the sliding block is located at the first position, the first mounting hole is connected with the second mounting hole through the vertical through hole, when the sliding block is located at the second position, the first mounting hole is connected with the gas supply hole through the inclined through hole; the back-blowing driving mechanism and the gas supply device are respectively electrically connected with the controller.

[0009] Preferably, the back-blowing driving mechanism comprises a driving cylinder and a driving connecting block, the driving cylinder is arranged on the front side plate of the support box, a long strip-shaped guide sliding hole is arranged on the front side plate, the guide sliding hole extends in a direction perpendicular to the filter rod emitting tube; one end of the driving connecting block is connected with the sliding block, the other end of the driving connecting block passes through the guide sliding hole and is connected with the cylinder rod of the driving cylinder; the cylinder rod of the driving cylinder is parallel to the guide sliding hole, the driving connecting block is slidingly fitted with the guide sliding hole, and the driving cylinder is electrically connected with the controller.

[0010] Preferably, the right side plate of the support box is detachably connected with the right ends of the upper side plate and the lower side plate of the support box.

[0011] A filter rod emitting tube dredging method based on the filter rod emitting tube dredging device, comprising:

[0012] In step S11, when the filter rod is blocked in the filter rod emitting tube during normal operation of the transmitter and the receiver, the opposite light photoelectric switch will be blocked, and when the duration of the blocked opposite light photoelectric switch exceeds the first set time, the controller will control the transmitter to stop emitting the filter rod;

[0013] Step S21, the controller controls the horizontal movement driving member to work, drives the horizontal movement sliding block to move to the dredging position, so that the first connecting hole is opposite to the dredging hole, and simultaneously controls the air supply system of the launcher to start air supply, so as to blow the filter rod in the filter rod launching tube out through the dredging hole by using the compressed air of the air supply system;

[0014] Step S31, the controller controls the launcher to continue launching the filter rod.

[0015] Preferably, it further comprises a step S22 after step S21:

[0016] After the continuous air supply time of the air supply system exceeds the second set time, if the filter rod launching tube blockage is not detected by the light emitting photoelectric switch, the controller controls the horizontal movement driving member to work, drives the horizontal movement sliding block to return to the working position, and then controls the horizontal movement driving member to stop working, and then step S31 is performed;

[0017] After the continuous air supply time of the air supply system exceeds the second set time, if the filter rod launching tube blockage is still detected by the light emitting photoelectric switch, the controller controls the air supply system of the launcher to stop air supply, simultaneously controls the horizontal movement driving member to work, drives the horizontal movement sliding block to return to the working position, and then controls the horizontal movement driving member to stop working, and controls the back blowing driving mechanism to work, drives the sliding block to move to the second position, and then controls the air supply device to start air supply, so that the compressed air of the air supply device enters the filter rod launching tube through the air supply hole, the inclined through hole and the first mounting hole, and then blows to the launcher, so as to blow the filter rod in the filter rod launching tube back to the launcher.

[0018] Preferably, it further comprises a step S23 after step S22:

[0019] After the continuous air supply time of the air supply device exceeds the third set time, if the filter rod launching tube blockage is not detected by the light emitting photoelectric switch, the controller controls the air supply device to stop air supply, and simultaneously controls the back blowing driving mechanism to work, drives the sliding block to return to the first position, and then controls the back blowing driving mechanism to stop working, and then step S31 is performed;

[0020] After the continuous air supply time of the air supply device exceeds the third set time, if the filter rod launching tube blockage is still detected by the light emitting photoelectric switch, the controller controls the air supply device to stop air supply, and simultaneously controls the back blowing driving mechanism to work, drives the sliding block to return to the first position, and then controls the back blowing driving mechanism to stop working, and then step S21 is performed.

[0021] Preferably, the first set time is 3 seconds, the second set time is 10 seconds, and the third set time is 15 seconds.

[0022] The present application has the following beneficial effects:

[0023] The filter rod emission tube dredging device of the present application can detect whether the filter rod emission tube is blocked in real time by using the light reflection photoelectric switch during use, and if the light reflection photoelectric switch detects that the filter rod emission tube is blocked, the controller will control the emitter to stop emitting filter rods, control the horizontal movement driving member to work, drive the horizontal movement sliding block to move to the dredging position, so that the first connecting hole is opposite to the dredging hole, and at the same time, the air supply system of the emitter starts to supply air, so that the compressed air of the air supply system blows out the filter rods in the filter rod emission tube through the dredging hole, thereby realizing the dredging of the filter rod emission tube; after the filter rod emission tube is dredged, the controller controls the horizontal movement driving member to work, drives the horizontal movement sliding block to reset to the working position, and then controls the horizontal movement driving member to stop working, and controls the emitter to continue emitting filter rods. It can be seen that the present application can realize the automatic dredging of the filter rod emission tube, thereby effectively reducing the labor intensity of the operator, improving the efficiency of the filter rod emission tube dredging operation, and better ensuring the personal safety of the operator.

[0024] The filter rod emission tube dredging method of the present application also has the above beneficial effects. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced, and the specific embodiments of the present application will be further described in detail with reference to the drawings, in which

[0026] Figure 1 A schematic view of the filter rod emission tube dredging device provided by the embodiment of the present application during use;

[0027] Figure 2 A schematic view of the horizontal movement sliding block in the working position;

[0028] Figure 3 A schematic view of the horizontal movement sliding block in the dredging position;

[0029] Figure 4 An exploded view of the horizontal movement device provided by the embodiment of the present application;

[0030] Figure 5 A right view of the horizontal movement guide rail provided by the embodiment of the present application;

[0031] Figure 6 A schematic view of the sliding block in the first position;

[0032] Figure 7 A schematic view of the sliding block in the second position;

[0033] Figure 8 An exploded view of the back blowing device provided by the embodiment of the present application.

[0034] Reference signs in the drawings:

[0035] 11. Transmitter, 12. Receiver, 13. Filter rod launching tube

[0036] 21. Photoelectric switch

[0037] 31. Transverse moving device, 32. Transverse moving guide rail, 321. Inverted T-shaped slot, 322. Second connecting hole,

[0038] 323. Clearing hole, 324. Slot bottom, 325. Horizontal slot, 326. Vertical slot, 33. Transverse moving slider,

[0039] 331. First connecting hole, 34. Transverse moving cylinder, 341. Cylinder rod of transverse moving cylinder,

[0040] 342. Transverse moving connecting block

[0041] 41. Back flushing device, 42. Supporting box, 421. Lower side plate, 422. Upper side plate,

[0042] 423. Front side plate, 424. Left side plate, 425. Right side plate, 426. Air supply hole,

[0043] 427. Guide sliding hole, 428. First mounting hole, 429. Second mounting hole, 43. Slider,

[0044] 431. Vertical through hole, 432. Inclined through hole, 44. Driving cylinder,

[0045] 441. Cylinder rod of driving cylinder, 442. Driving connecting block, 443. First air hole,

[0046] 444. Second air hole; 51. Controller DETAILED DESCRIPTION

[0047] In order to make the skilled in the art better understand the technical solutions of the present application, the present application will be further described in detail below in combination with specific embodiments.

[0048] As Figures 1 to 8As shown, the filter rod launching tube dredging device provided by the embodiment of the application comprises a controller 51, a transverse moving device 31, and a light barrier 21 for detecting whether the filter rod launching tube 13 is blocked, the light barrier 21 is arranged close to the receiver 12 of the filter rod pneumatic conveying device, and the transverse moving device 31 is arranged between the light barrier 21 and the receiver 12; the transverse moving device comprises a transverse moving driving member, a transverse moving slider 33, and a transverse moving guide rail 32, the transverse moving guide rail is connected with the outer cover of the receiver through a mounting frame, the transverse moving driving member is arranged at one end of the transverse moving guide rail, a reverse T-shaped groove 321 is arranged on the transverse moving guide rail 32, the extending direction of the reverse T-shaped groove is perpendicular to the filter rod launching tube 13, the transverse moving slider is slidably matched with the horizontal groove 325 of the reverse T-shaped groove, and the transverse moving driving member is used for driving the transverse moving slider 33 to slide in the horizontal groove 325; a first connecting hole 331 for connecting with the filter rod launching tube located above the transverse moving guide rail is arranged on the transverse moving slider 33, the groove bottom 324 of the reverse T-shaped groove is provided with a second connecting hole 322 for connecting with the filter rod launching tube located below the transverse moving guide rail and a dredging hole 323 close to the second connecting hole; the lower side of the transverse moving slider is matched with the groove bottom 324, the light barrier 21, the transverse moving driving member, and the air supply system of the receiver are electrically connected with the controller respectively; the transverse moving slider 33 has a working position and a dredging position, when the transverse moving slider is in the working position, the first connecting hole 331 is opposite to the second connecting hole 322, and when the transverse moving slider is in the dredging position, the first connecting hole 331 is opposite to the dredging hole 323.

[0049] The filter rod launching tube dredging device provided by the embodiment of the application can detect whether the filter rod launching tube 13 is blocked in real time by using the light barrier 21 when in use, if the light barrier detects that the filter rod launching tube is blocked, the controller 51 controls the receiver 11 to stop launching the filter rod, controls the transverse moving driving member to work, drives the transverse moving slider 33 to move to the dredging position, so that the first connecting hole is opposite to the dredging hole, controls the air supply system of the receiver to start supplying air at the same time, and blows the filter rod in the filter rod launching tube out through the dredging hole by using the compressed air of the air supply system, so as to dredge the filter rod launching tube; after the filter rod launching tube is dredged, the controller controls the transverse moving driving member to work, drives the transverse moving slider 33 to reset to the working position, so that the first connecting hole is opposite to the second connecting hole, then controls the transverse moving driving member to stop working, and controls the receiver to continue launching the filter rod. It can be seen that the filter rod launching tube can be dredged automatically by the application, so that the labor intensity of the operator is effectively reduced, the efficiency of the filter rod launching tube dredging operation is improved, and the personal safety of the operator is better ensured.

[0050] Further, the transverse moving driving member is a transverse moving cylinder 34, and the transverse moving device further comprises a transverse moving connecting block 342, the lower end of the transverse moving connecting block is connected with the transverse moving sliding block, and the upper end of the transverse moving connecting block is connected with the cylinder rod 341 of the transverse moving cylinder through the vertical slot 326 of the inverted T-shaped slot, so that the structure of the transverse moving driving member is relatively simple, the transverse moving connecting block and the transverse moving sliding block are driven to move by the cylinder rod of the transverse moving cylinder, and then the transverse moving sliding block can be conveniently placed in the working position and the dredging position. It can be understood that the transverse moving guide rail 32 is perpendicular to the filter rod launching pipe, the cylinder rod of the transverse moving cylinder can be preferably parallel to the transverse moving guide rail, and the two ends of the transverse moving connecting block are respectively connected with the transverse moving sliding block and the cylinder rod of the transverse moving cylinder perpendicularly; as in the prior art, since the end of the filter rod launching pipe close to the receiver is prone to be blocked, the light emitting and receiving switch is arranged on the two sides of the end of the filter rod launching pipe close to the receiver, and details are not repeated here.

[0051] Specifically, the transverse moving driving member is arranged at the left end of the transverse moving guide rail, and the dredging hole 323 is a U-shaped hole with an opening facing right. It can be understood that the left end of the dredging hole is close to the second connecting hole at this time; since the axial length of the filter rod launching pipe 13 between the transmitter 11 and the receiver 12 is relatively long in actual production, and the transverse moving device is arranged close to the receiver, the end of the filter rod launching pipe close to the receiver can have a certain swing range, and the dredging hole is arranged close to the second connecting hole, so that the transverse moving sliding block only needs to swing a small distance to the right to drive the filter rod launching pipe, so as to move the transverse moving sliding block to the dredging position, and the use requirement of automatic dredging is better met.

[0052] Further, the filter rod emission tube dredging device further comprises a back blowing device 41 arranged between the transverse moving device 31 and the light barrier photoelectric switch 21, the back blowing device 41 comprises a support box 42, a sliding block 43 and a back blowing driving mechanism, a first mounting hole 428 for connecting with the filter rod emission tube above the support box is arranged on the upper side plate 422 of the support box, a second mounting hole 429 for connecting with the filter rod emission tube below the support box is arranged on the lower side plate 421 of the support box, the first mounting hole is opposite to the second mounting hole; a gas supply hole 426 for connecting with a gas supply device is further arranged on the lower side plate of the support box; the sliding block 43 is slidingly arranged in the support box 42, the upper side wall and the lower side wall of the sliding block are respectively fitted with the inner wall surface of the upper side plate 422 and the lower side plate 421, a vertical through hole 431 for connecting the first mounting hole with the second mounting hole and an inclined through hole 432 for connecting the first mounting hole with the gas supply hole are arranged in the sliding block; the back blowing driving mechanism is used for driving the sliding block to slide in the support box, the sliding block has a first position and a second position in the support box, when the sliding block is located at the first position, the first mounting hole is connected with the second mounting hole through the vertical through hole 431, when the sliding block is located at the second position, the first mounting hole is connected with the gas supply hole through the inclined through hole 432; the back blowing driving mechanism and the gas supply device are electrically connected with the controller respectively.

[0053] With this scheme, when the light barrier photoelectric switch detects that the filter rod emission tube is blocked, the controller controls the emitter 11 to stop emitting filter rods, controls the back blowing driving mechanism to act, drives the sliding block to move to the second position, so that the first mounting hole is opposite to the gas supply hole through the inclined through hole, controls the gas supply device to start supplying gas at the same time, so that the compressed air of the gas supply device enters the filter rod emission tube 13 through the gas supply hole 426, the inclined through hole 432 and the first mounting hole 428, and blows the filter rods in the filter rod emission tube back to the emitter by using the compressed air, that is, the dredging of the filter rod emission tube is realized by the way of reverse blowing of the filter rod emission tube; after the filter rod emission tube is dredged, the controller controls the back blowing driving mechanism to act, drives the sliding block to reset to the first position, so that the first mounting hole is opposite to the second mounting hole through the vertical through hole, and then controls the back blowing driving mechanism to stop acting and the gas supply device to stop supplying gas, and controls the emitter to continue emitting filter rods.

[0054] Specifically, the back-blowing driving mechanism comprises a driving cylinder 44 and a driving connecting block 442, the driving cylinder is arranged on the front side plate 423 of the support box, the front side plate is provided with an elongated guide sliding hole 427 extending in a direction perpendicular to the filter rod launching tube, one end of the driving connecting block is connected with the sliding block, the other end of the driving connecting block is connected with the cylinder rod 441 of the driving cylinder through the guide sliding hole 427, the cylinder rod of the driving cylinder is parallel to the guide sliding hole, the driving connecting block is in sliding fit with the guide sliding hole, and the driving cylinder is electrically connected with the controller. By adopting the scheme, the structure of the back-blowing driving mechanism is relatively simple, the cylinder rod of the driving cylinder drives the driving connecting block, the driving connecting block drives the sliding block to move, and thus the sliding block can be conveniently placed in the first position or the second position.

[0055] It can be understood that the compressed air provided by the transmitter air supply system is blown to the receiver by the transmitter, which can be referred to as forward blowing, and the compressed air provided by the air supply device and blown to the transmitter from the first mounting hole can be referred to as reverse blowing; the upper side wall of the sliding block 43 is attached to the inner wall surface of the upper side plate of the support box, and the lower side wall of the sliding block is attached to the inner wall surface of the lower side plate of the support box, so that the air tightness of the sliding block in the first position and the second position is better. The controller is used for controlling the driving cylinder, so that when air is supplied to the first air hole 443 of the driving cylinder, the cylinder rod of the driving cylinder is extended to place the sliding block in the second position, and when air is supplied to the second air hole 444, the cylinder rod of the driving cylinder is retracted to place the sliding block in the first position. It is a common control method in the prior art, and the controller can also control the horizontal moving cylinder in this way. Here, no further description is given.

[0056] Preferably, the right side plate 425 of the support box is detachably connected with the right ends of the upper side plate 422 and the lower side plate 421 of the support box, so that the sliding block is conveniently installed in the support box. Preferably, the right side plate of the support box is connected with the right ends of the upper side plate and the lower side plate of the support box through screws respectively; and the guide sliding hole extends from the left end of the front side plate to the right end of the front side plate.

[0057] Preferably, when the sliding block is in the first position, the right side surface of the sliding block is attached to the inner wall surface of the right side plate 425 of the support box; and when the sliding block is in the second position, the left side surface of the sliding block is attached to the inner wall surface of the left side plate 424 of the support box, so as to conveniently limit the stroke of the sliding block; and the controller is a PLC controller.

[0058] The embodiment of the present application also provides a filter rod launching tube dredging method based on the filter rod launching tube dredging device.

[0059] Step S11, during the normal operation of the transmitter 11 and the receiver 12, when the filter rod is blocked in the filter rod launching tube 13, the light-reflecting photoelectric switch 21 will be blocked, and when the duration of the blocking of the light-reflecting photoelectric switch exceeds the first set time, it indicates that the filter rod launching tube is blocked, and the controller controls the transmitter to stop launching the filter rod;

[0060] Step S21, the controller 51 controls the horizontal movement driving member to work, drives the horizontal movement sliding block 33 to move to the unblocking position, so that the first connecting hole is opposite to the unblocking hole, as shown in Figure 3 , and controls the air supply system of the transmitter to start air supply, so as to use the compressed air of the air supply system to blow the filter rod in the filter rod launching tube out through the unblocking hole, at this time, the filter rod blocked in the filter rod launching tube will fall from the unblocking hole under the action of gravity and the positive blowing;

[0061] Step S31, the controller controls the transmitter to continue launching the filter rod.

[0062] Further, the filter rod launching tube unblocking method further comprises a step S22 after step S21:

[0063] After the duration of the air supply of the air supply system exceeds the second set time, if the light-reflecting photoelectric switch does not detect the blockage of the filter rod launching tube, the controller 51 controls the horizontal movement driving member to work, drives the horizontal movement sliding block 33 to return to the working position, as shown in Figure 2 , and then controls the horizontal movement driving member to stop working, and then step S31 is performed;

[0064] After the duration of the air supply of the air supply system exceeds the second set time, if the light-reflecting photoelectric switch still detects the blockage of the filter rod launching tube, the controller 51 controls the air supply system of the transmitter to stop air supply, controls the horizontal movement driving member to work, drives the horizontal movement sliding block to return to the working position, and then controls the horizontal movement driving member to stop working, and controls the back-blowing driving mechanism to work, drives the sliding block 43 to move to the second position, as shown in Figure 7 , and then controls the air supply device to start air supply, the compressed air of the air supply device enters the filter rod launching tube through the air supply hole, the inclined through hole and the first mounting hole, and then blows to the transmitter, so as to blow the filter rod in the filter rod launching tube back to the transmitter, and realizes the unblocking of the filter rod launching tube.

[0065] Further, the filter rod launching tube unblocking method further comprises a step S23 after step S22:

[0066] After the duration of the air supply of the air supply device exceeds the third set time, if the light-reflecting photoelectric switch does not detect the blockage of the filter rod launching tube, the controller controls the air supply device to stop air supply, and controls the back-blowing driving mechanism to work, drives the sliding block 43 to return to the first position, as shown in Figure 6 , and then controls the back-blowing driving mechanism to stop working, and then step S31 is performed;

[0067] If the filter rod emission tube is still blocked after the continuous supply time of the air supply device exceeds the third set time, the controller controls the air supply device to stop supplying air, controls the back-blowing driving mechanism to move the sliding block to the first position, and then controls the back-blowing driving mechanism to stop moving, and then step S21 is performed, that is, steps S21 to S23 are repeated until the filter rod emission tube is unblocked.

[0068] Preferably, the first set time is 3 seconds, the second set time is 10 seconds, and the third set time is 15 seconds.

[0069] It can be understood that the filter rod emission tube unblocking method provided by the embodiments of the present application first controls the horizontal moving device when the filter rod emission tube is seriously blocked, then uses forward blowing to unblock the filter rod emission tube, then controls the back-blowing device to use reverse blowing to unblock the filter rod emission tube, and then repeats the above unblocking process until the filter rod emission tube is unblocked. In actual application, when the filter rod emission tube is seriously blocked, the back-blowing device and reverse blowing can be used to unblock the filter rod emission tube first, and then the horizontal moving device and forward blowing can be used to unblock the filter rod emission tube, and then the above unblocking process is repeated until the filter rod emission tube is unblocked. When the filter rod emission tube is not seriously blocked, only one of the above two unblocking methods can be used to unblock the filter rod emission tube.

[0070] The present application can detect whether the filter rod emission tube is blocked in real time, automatically discharge the filter rod blocked in the filter rod emission tube, better solve the problem of relying on manual unblocking of the filter rod emission tube, effectively avoid the problem of filter rod blocking and staggered extrusion in the filter rod emission tube, improve the automation level of the unblocking device, significantly reduce the labor intensity of workers, effectively improve the operation efficiency of the filter rod pneumatic conveying device and ensure the personal safety of the operator.

[0071] The above are only preferred embodiments of the present application. It should be pointed out that these embodiments are only used to illustrate the present application and not to limit the scope of the present application, and after reading the content of the present application, those skilled in the art can make various modifications or changes to the present application, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

Claims

1. A filter rod launching tube clearing device, characterised in that, The utility model relates to a filter rod pneumatic conveying device, which comprises a controller, a horizontal moving device, a pair of photoelectric switches for detecting whether the filter rod launching tube is blocked, the pair of photoelectric switches being arranged close to the receiver of the filter rod pneumatic conveying device, and the horizontal moving device being arranged between the pair of photoelectric switches and the receiver. The horizontal moving device comprises a horizontal moving drive, a horizontal moving slider and a horizontal moving guide rail, the horizontal moving guide rail being connected to the outer cover of the receiver through a mounting frame, the horizontal moving drive being arranged at one end of the horizontal moving guide rail, the horizontal moving guide rail being provided with a reversed T-shaped groove, the extending direction of the reversed T-shaped groove being perpendicular to the filter rod launching tube, the horizontal moving slider being in sliding fit with the horizontal groove of the reversed T-shaped groove, and the horizontal moving drive being used to drive the horizontal moving slider to slide in the horizontal groove. The horizontal moving slider is provided with a first connecting hole for being connected to the filter rod launching tube located above the horizontal moving guide rail, and the groove bottom of the reversed T-shaped groove is provided with a second connecting hole for being connected to the filter rod launching tube located below the horizontal moving guide rail and a dredging hole close to the second connecting hole. The lower side surface of the horizontal moving slider is in fit with the groove bottom, the pair of photoelectric switches, the horizontal moving drive and the air supply system of the launching machine are respectively electrically connected to the controller, the horizontal moving slider has a working position and a dredging position, the first connecting hole is opposite to the second connecting hole when the horizontal moving slider is in the working position, and the first connecting hole is opposite to the dredging hole when the horizontal moving slider is in the dredging position. The utility model further comprises a back blowing device arranged between the horizontal moving device and the pair of photoelectric switches, the back blowing device comprising a supporting box, a sliding block and a back blowing drive mechanism. The upper side plate of the supporting box is provided with a first mounting hole for being connected to the filter rod launching tube located above the supporting box, and the lower side plate of the supporting box is provided with a second mounting hole for being connected to the filter rod launching tube located below the supporting box, the first mounting hole being opposite to the second mounting hole. The lower side plate of the supporting box is further provided with an air supply hole for being connected to the air supply equipment, the sliding block is slidingly arranged in the supporting box, the upper side wall and the lower side wall of the sliding block are respectively in fit with the inner wall surface of the upper side plate and the lower side plate, the sliding block is provided with a vertical through hole for connecting the first mounting hole and the second mounting hole and an inclined through hole for connecting the first mounting hole and the air supply hole, the back blowing drive mechanism is used to drive the sliding block to slide in the supporting box, the sliding block has a first position and a second position in the supporting box, the first mounting hole is connected to the second mounting hole through the vertical through hole when the sliding block is in the first position, and the first mounting hole is connected to the air supply hole through the inclined through hole when the sliding block is in the second position. The back blowing drive mechanism and the air supply equipment are respectively electrically connected to the controller. The back-flushing driving mechanism comprises a driving cylinder and a driving connecting block, the driving cylinder is arranged on the front side plate of the support box, the front side plate is provided with an elongated guide sliding hole extending in a direction perpendicular to the filter rod launching tube, one end of the driving connecting block is connected with the sliding block, the other end of the driving connecting block is connected with the cylinder rod of the driving cylinder through the guide sliding hole, the cylinder rod of the driving cylinder is parallel to the guide sliding hole, the driving connecting block is in sliding fit with the guide sliding hole, and the driving cylinder is electrically connected with the controller. The right side plate of the support box is detachably connected with the right ends of the upper side plate and the lower side plate of the support box.

2. A filter rod launching tube clearing device according to claim 1, characterised in that, The horizontal movement driving member is a horizontal movement cylinder, and the horizontal movement device further comprises a horizontal movement connecting block, the lower end of the horizontal movement connecting block is connected with the horizontal movement sliding block, and the upper end of the horizontal movement connecting block is connected with the cylinder rod of the horizontal movement cylinder through the vertical slot of the inverted T-shaped slot.

3. A filter rod launching tube clearing device according to claim 1, characterised in that The horizontal movement driving member is arranged at the left end of the horizontal movement guide rail, and the dredging hole is a U-shaped hole with an opening facing right.

4. A filter rod emitting pipe unblocking method based on the filter rod emitting pipe unblocking apparatus according to claim 1, characterized by, It comprises: Step S11, when the filter rod is blocked in the filter rod launching tube during normal operation of the transmitter and the receiver, the light-reflecting photoelectric switch will be blocked, and when the duration that the light-reflecting photoelectric switch is blocked exceeds a first set time, the controller controls the transmitter to stop launching the filter rod; Step S21, the controller controls the horizontal movement driving member to work, drives the horizontal movement sliding block to move to a dredging position, so that the first connecting hole is opposite to the dredging hole, and simultaneously controls the gas supply system of the transmitter to start supplying gas, so as to use the compressed air of the gas supply system to blow out the filter rod in the filter rod launching tube through the dredging hole; Step S31, the controller controls the transmitter to continue launching the filter rod; It further comprises step S22 after step S21: After the duration of the continuous gas supply of the gas supply system exceeds a second set time, if the light-reflecting photoelectric switch does not detect that the filter rod launching tube is blocked, the controller controls the horizontal movement driving member to work, drives the horizontal movement sliding block to return to the working position, then controls the horizontal movement driving member to stop working, and then step S31 is performed; After the duration of the continuous gas supply of the gas supply system exceeds a second set time, if the light-reflecting photoelectric switch still detects that the filter rod launching tube is blocked, the controller controls the gas supply system of the transmitter to stop supplying gas, simultaneously controls the horizontal movement driving member to work, drives the horizontal movement sliding block to return to the working position, then controls the horizontal movement driving member to stop working, and controls the back-flushing driving mechanism to act, drives the sliding block to move to a second position, then controls the gas supply equipment to start supplying gas, the compressed air of the gas supply equipment enters the filter rod launching tube through the gas supply hole, the inclined through hole and the first mounting hole, and then blows to the transmitter, so as to blow the filter rod in the filter rod launching tube back to the transmitter; It further comprises step S23 after step S22: After the duration of the continuous gas supply of the gas supply equipment exceeds a third set time, if the light-reflecting photoelectric switch does not detect that the filter rod launching tube is blocked, the controller controls the gas supply equipment to stop supplying gas, simultaneously controls the back-flushing driving mechanism to act, drives the sliding block to return to the first position, then controls the back-flushing driving mechanism to stop acting, and then step S31 is performed; If the filter rod emission tube is still blocked as detected by the light emitting photoelectric switch after the continuous air supply time of the air supply device exceeds the third set time, the controller controls the air supply device to stop air supply, controls the back blowing driving mechanism to act, drives the sliding block to return to the first position, and then controls the back blowing driving mechanism to stop acting, and then step S21 is performed.

5. The filter rod launching tube purging method according to claim 4, characterized in that, The first set time is 3 seconds, the second set time is 10 seconds, and the third set time is 15 seconds.

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