CN109515844B - Cigarette bar posture correction device and method - Google Patents
Cigarette bar posture correction device and method Download PDFInfo
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- CN109515844B CN109515844B CN201811349400.8A CN201811349400A CN109515844B CN 109515844 B CN109515844 B CN 109515844B CN 201811349400 A CN201811349400 A CN 201811349400A CN 109515844 B CN109515844 B CN 109515844B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
- B65B35/56—Orientating, i.e. changing the attitude of, articles, e.g. of non-uniform cross-section
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B57/00—Automatic control, checking, warning, or safety devices
- B65B57/10—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged
- B65B57/14—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged and operating to control, or stop, the feed of articles or material to be packaged
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- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
- Control Of Conveyors (AREA)
Abstract
The invention discloses a cigarette rod posture correction device and method, relates to the field of automatic control of tobacco and is used for enabling cigarette rods to be transported in a set direction. The cigarette rod posture correction device comprises a posture judgment device and a correction device. And an attitude determination device configured to determine whether the tobacco rod is tilted. The correction device is configured to correct the attitude of the tobacco rod when the tobacco rod is tilted. Above-mentioned technical scheme has realized that the gesture of automatic judgement cigarette, automatic cigarette gesture adjustment of carrying out, the cigarette that has prevented the slope in the transportation process carries to phenomenon such as jam that next product leads to, has ensured product quality, has strengthened machine operating stability.
Description
Technical Field
The invention relates to the field of automatic control of tobacco, in particular to a tobacco rod posture correction device and method.
Background
The tobacco strips produced by the packaging machine are conveyed to a downstream machine for packaging through the tobacco strip conveying device.
The cigarette rod conveying device comprises a belt motor, a belt pulley and a cigarette rod conveying belt. The belt motor controlled by the contactor drives the belt pulley to rotate, and the belt pulley drives the conveying belt through friction force. The motor speed is fixed and therefore the belt speed is also fixed. The belt drives the cigarette sticks through friction force, the belt and the cigarette sticks are kept synchronous, and the running speed of the cigarette sticks is fixed and unchanged.
The inventor finds that at least the following problems exist in the prior art: the tobacco rod can be crooked in transportation process, if crooked tobacco rod is not in time found and gets into the low reaches machine, can cause the tobacco rod to block up crowded bad, serious can damage the machine, influences machine operating efficiency.
Disclosure of Invention
The invention provides a cigarette rod posture correction device and method, which are used for conveying cigarette rods according to a set direction.
The invention provides a cigarette rod posture correcting device, which comprises:
attitude determination means configured to determine whether the tobacco rod is tilted; and
a correction device configured to correct the attitude of the tobacco rod when the tobacco rod is tilted.
In some embodiments, the rod attitude correction device further comprises:
a stop device configured to stop transport of the tobacco rod when the tobacco rod is tilted.
In some embodiments, the rod attitude correction device further comprises:
and the correction effect detection device is used for detecting whether the cigarette rod is corrected in posture.
In some embodiments, the posture determination device includes:
and the displacement sensor is arranged near the cigarette rod and used for detecting the distance between the cigarette rod and the displacement sensor.
In some embodiments, the correction device comprises:
the first belt is arranged on the conveying path of the cigarette sticks, and the width of the first belt is 1mm-15mm more than that of the cigarette sticks; and
the second belt is arranged on the conveying path of the cigarette sticks, and the width of the first belt is 1mm-15mm more than that of the cigarette sticks;
wherein the first belt and the second belt are arranged in parallel.
In some embodiments, the first belt is provided with a first drive mechanism.
In some embodiments, the second belt is provided with a second drive mechanism.
In some embodiments, the stop device comprises a telescoping cylinder.
In some embodiments, the rod attitude correction device further comprises:
and the state detection device is configured to detect that the telescopic cylinder is in an extending or retracting state.
In some embodiments, the state detection device comprises:
the first magnetic switch is arranged on the outer wall of the rodless cavity of the telescopic cylinder;
the second magnetic switch is arranged on the outer wall of the rod cavity of the telescopic cylinder; and
and the magnet is arranged at the end part of the telescopic rod of the telescopic cylinder.
In some embodiments, the rod attitude correction device further comprises:
the switching valve comprises a first opening, a second opening and a third opening, wherein the first opening is used for being communicated with an external fluid source, the second opening is communicated with a rodless cavity of the telescopic cylinder, and the third opening is communicated with a rod cavity of the telescopic cylinder;
wherein one of the first openings is communicated with the second opening and the third opening.
In some embodiments, the correction effect detection means comprises:
a first sensor arranged upstream of the stop device; and
a second sensor disposed upstream of the first sensor.
In some embodiments, the distance between the first sensor and the second sensor is 1mm-10mm longer than the length of the tobacco rod.
In some embodiments, the first sensor and/or the second sensor comprises a photosensor.
In some embodiments, the rod attitude correction device further comprises:
and the conveying device is arranged near the correcting device and is used for conveying the tobacco sticks to the correcting device and receiving the tobacco sticks with the posture corrected by the correcting device.
In some embodiments, the delivery device comprises:
a third belt provided downstream of the correction device; and
a fourth belt provided upstream of the correction device.
The embodiment of the invention also provides a cigarette rod posture correction method, which comprises the following steps:
judging whether the tobacco strips are inclined in the conveying process;
if the cigarette is inclined, the posture of the cigarette is adjusted until the posture of the cigarette meets the requirement;
and continuously conveying the tobacco rod.
In some embodiments, if the inclination occurs, the adjusting the posture of the cigarette rod until the posture of the cigarette rod meets the requirement comprises the following steps:
judging the inclined posture of the cigarette rod;
and (3) independently moving the first belt or the second belt according to the inclined posture of the cigarette rod until the posture of the cigarette rod meets the requirement.
The cigarette rod posture correction device that above-mentioned technical scheme provided has realized that the posture of automatic judgement cigarette rod, automatic cigarette rod posture adjustment of carrying on have prevented that the cigarette rod that appears the slope in the transportation process from carrying to phenomena such as jam that next product leads to, have ensured product quality, have strengthened machine operating stability.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic structural diagram of a cigarette rod posture correction device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a connection relationship between a control portion of a cigarette rod posture correction device according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a cigarette rod conveying part of the cigarette rod posture correction device according to the embodiment of the present invention;
FIG. 4 is a schematic view of a cigarette rod posture correction device according to an embodiment of the present invention with a normal cigarette rod on a fourth belt;
FIG. 5 is a schematic view of an embodiment of the present invention providing a cigarette rod attitude correction device with untilted cigarette rods on a first belt and a second belt;
FIG. 6 is a schematic distance view of the tobacco rod in the position shown in FIG. 5;
FIG. 7 is a schematic view of a cigarette rod posture correction device according to an embodiment of the present invention with a cigarette rod tilted 90 degrees on a fourth belt;
FIG. 8 is a schematic view of the slanted cigarette rod of FIG. 7 positioned on a first belt and a second belt;
FIG. 9 is a schematic distance view of the tobacco rod in the position shown in FIG. 8;
FIG. 10 is a schematic view of a slanted cigarette rod on a fourth belt of the cigarette rod posture correction device provided in accordance with an embodiment of the present invention;
FIG. 11 is a schematic view of the portion of the slanted cigarette rod shown in FIG. 10 positioned on a first belt and a second belt;
FIG. 12 is a schematic view of the slanted cigarette rod of FIG. 10 fully positioned on the first and second belts;
FIG. 13 is a schematic view of the detected distance of the cigarette rod in the attitude shown in FIG. 10;
figure 14 is a schematic view of a cigarette rod positioned on a fourth belt at an incline in a cigarette rod posture correction device provided in accordance with an embodiment of the present invention;
FIG. 15 is a schematic view of the portion of the slanted cigarette rod of FIG. 14 positioned on a first belt and a second belt;
FIG. 16 is a schematic view of the slanted cigarette rod of FIG. 14 fully positioned on the first and second belts;
FIG. 17 is a schematic view of the detected distance of the cigarette rod in the attitude of FIG. 14;
FIG. 18 is a schematic inclination of the upper inclined position rod;
FIG. 19 is a schematic inclination view of a lower inclined position tobacco rod;
FIG. 20 is a schematic flow chart illustrating a method for correcting the attitude of a cigarette rod according to an embodiment of the present invention;
FIG. 21 is a first schematic diagram illustrating an adjustment process of the slanted cigarette rod;
FIG. 22 is a second schematic diagram of the process of adjusting the slanted cigarette rod;
FIG. 23 is a third schematic view of an adjustment process of the slanted cigarette rod;
FIG. 24 is a schematic view of the completion of the adjustment of the slanted cigarette rod;
FIG. 25 is a schematic view of the tilted tobacco rod being adjusted and ready for further transport;
FIG. 26 is a schematic view of the inclined tobacco rod after adjustment of the stop means;
FIG. 27 is a schematic view of the synchronous start of the first belt and the second belt after the adjustment of the upper inclined tobacco rod is completed;
FIG. 28 is a schematic view of the adjusted upper slanted cigarette rod being transported to the third belt;
FIG. 29 is a first schematic view of a downward sloping tobacco rod adjustment process;
FIG. 30 is a second schematic view of a downward sloping tobacco rod adjustment process;
FIG. 31 is a schematic view of the adjustment process with only the first belt activated;
FIG. 32 is a schematic view of the lower slanted cigarette rod being adjusted.
Detailed Description
The technical solution provided by the present invention will be explained in more detail with reference to fig. 1 to 32.
Referring to fig. 1, the present invention provides a cigarette rod posture correction device, which comprises a posture judgment device 1 and a correction device 2. The posture judging device 1 is configured to judge whether the tobacco rod 8 is inclined; the correction device 2 is configured to correct the attitude of the tobacco rod 8 when the tobacco rod 8 is tilted.
The posture judging device 1 judges the posture of the cigarette rod 8 by using a camera, an infrared sensor, image recognition, a laser displacement sensor and the like.
The calibration device 2 is, for example, a robot or the like. Specific implementations employed in some embodiments will be given later.
Referring to fig. 1, in some embodiments, the rod attitude correction device further comprises a stop device 3, the stop device 3 being configured to stop transport of the tobacco rod 8 when the tobacco rod 8 is tilted. The stop means 3 are able to stop the rod 8 when it is necessary to stop the rod 8.
Referring to fig. 1, in some embodiments, the rod attitude correction means further comprises correction effect detection means 4, the correction effect detection means 4 being for detecting whether the rod 8 has been attitude corrected. The correction effect detection means 4 can be implemented in various ways, such as image detection, position sensor detection, etc.
Referring to fig. 1, in some embodiments, the posture determining device 1 includes a displacement sensor disposed near the cigarette rod 8 for detecting a distance between the cigarette rod 8 and the displacement sensor. Through the distance that displacement sensor detected, can judge whether the cigarette strip 8 inclines.
A specific implementation of the correction device 2 is described below.
Referring to fig. 1 and 8, in some embodiments, the correction device 2 includes a first belt 21 and a second belt 22. The first belt 21 is arranged on the conveying path of the cigarette rod 8, and the width of the first belt 21 is 1mm-15mm more than that of the cigarette rod 8. The second belt 22 is disposed on the conveying path of the tobacco rod 8, and the width of the first belt 21 is 1mm to 15mm more than the width of the tobacco rod 8. Wherein the first belt 21 and the second belt 22 are arranged in parallel. The width of the tobacco rod 8 refers to the short side of the tobacco rod 8.
One or both of the first belt 21 and the second belt 22 are started asynchronously, so that the posture of the cigarette rod 8 can be changed, and posture correction can be realized.
Referring to fig. 1, in some embodiments, the first belt 21 is provided with a first drive mechanism 23. The first driving mechanism 23 drives the first belt 21 to run, for example, by using a motor. The first driving mechanism 23 drives only the first belt 21 for control.
In some embodiments, the second belt 22 is provided with a second drive mechanism 24. The second driving mechanism 24 drives the second belt 22 to run, for example, by using a motor. The second driving mechanism 24 drives only the second belt 22 for control.
As mentioned above, with reference to fig. 1, in some embodiments the stop means 3 comprises a telescopic cylinder. By adopting the structure, the control and the installation are convenient, and the occupied space is small.
In some embodiments, the rod attitude correction means further comprises a state detection means 5, the state detection means 5 being configured to detect whether the telescopic ram is in the extended or retracted state.
By judging the state of the telescopic cylinder, it can be judged whether the tobacco rod 8 is stopped. In some embodiments, the correction device 2 starts adjusting the attitude of the tobacco rod 8 after signaling that the tobacco rod 8 is stopped.
Referring to fig. 1, the state detection device 5 includes a first magnetic switch 51, a second magnetic switch 52, and a magnet. The first magnetic switch 51 is arranged on the outer wall of the rodless cavity of the telescopic cylinder; the second magnetic switch 52 is arranged on the outer wall of the rod cavity of the telescopic cylinder; the magnet is arranged at the end part of the telescopic rod of the telescopic cylinder.
When the telescopic rod 31 of the telescopic cylinder is in an extending state, the second magnetic switch 52 can sense the magnet, and the second magnetic switch 52 outputs a signal. In this state, the first magnetic switch 51 cannot sense the magnet, and no signal is output from the first magnetic switch 51.
The telescopic rod 31 of the telescopic cylinder is in a retraction state, the first magnetic switch 51 can sense the magnet, and the first magnetic switch 51 has signal output. In this state, the second magnetic switch 52 cannot sense the magnet, and no signal is output from the second magnetic switch 52.
Referring to fig. 1, in some embodiments, the rod attitude correction device further comprises a switching valve 6, the switching valve 6 comprising a first opening a, a second opening b and a third opening c. The first opening a is used for being communicated with an external fluid switching valve 6 source, the second opening b is communicated with a rodless cavity of the telescopic cylinder, and the third opening c is communicated with a rod cavity of the telescopic cylinder. Wherein, the first opening a is communicated with the second opening b and the third opening c alternatively.
When the telescopic cylinder needs to be extended, the first opening a is communicated with the second opening b. When the telescopic cylinder needs to retract, the first opening a is communicated with the third opening c.
In some embodiments, the corrective effect detection device 4 includes a first sensor 41 and a second sensor 42. The first sensor 41 is arranged upstream of the stop means 3; the second sensor 42 is provided upstream of the first sensor 41.
The first sensor 41 and the second sensor 42 are both photoelectric sensors, for example, and when the first sensor 41 can detect the cigarette rod 8 and the second sensor 42 cannot detect the cigarette rod 8, the cigarette rod 8 is correctly positioned. If both the first sensor 41 and the second sensor 42 are able to detect the rod 8, it is indicated that the rod 8 is tilted and not adjusted in position. As can be seen from the above analysis, it is possible to determine whether the posture of the tobacco rod 8 is correct or not based on the detection signals of the first sensor 41 and the second sensor 42.
Referring to fig. 1, in some embodiments, the distance between the first sensor 41 and the second sensor 42 is 1mm-10mm longer than the length of the tobacco rod 8.
The distance between the first sensor 41 and the second sensor 42 is the distance between them in the conveying direction of the first belt 21, as shown by the arrow in fig. 5, and the arrow in fig. 5 indicates the conveying direction of each belt segment. The arrows in the other figures also indicate the conveying direction of the belt in which the arrows are located.
In some embodiments, the rod attitude correction device further comprises a conveyor 7, the conveyor 7 being disposed adjacent to the correction device 2 for conveying the rods 8 to the correction device 2 and receiving the rods 8 corrected in attitude by the correction device 2.
It can be seen that the correction device 2 divides the transport device 7 into two sections, with the correction device 2 in the middle. If the tobacco rod 8 conveyed to the correcting device 2 by the conveying device 7 is inclined, the correcting device 2 is started to adjust the posture of the tobacco rod 8. If the rod 8 conveyed by the conveyor 7 to the correction device 2 is not tilted, the correction device 2 conveys the rod 8 directly to the next stage of the conveyor 7.
In some embodiments, the conveyor 7 comprises a third belt 71 and a fourth belt 72. The third belt 71 is provided downstream of the correction device 2; the fourth belt 72 is provided upstream of the correction device 2. The fourth belt 72 conveys the tobacco rod 8 to the correcting device 2, and if the tobacco rod is inclined, the correcting device 2 adjusts the posture of the tobacco rod to a set posture; and then conveyed to the third belt 71. If the rod is not tilted, the correction device 2 conveys the rod 8 directly to the third belt 71.
Some specific embodiments are described below.
First, the detailed structure of each part of the tobacco rod posture correction device is described.
1. The structure of the conveying structure will be described first.
The four belt motors are completely the same as the original motors, and the diameters of the four belt pulleys are the same. For ease of description, reference is made to fig. 1, and to the upper, lower, left and right sides of the drawings in the same orientation as fig. 1. The whole conveying belt is divided into a left section area, a middle section area and a right section area, the length of the middle section area is larger than that of one cigarette, and the belt is arranged according to the following modes:
(1) the left area is provided with a third belt 71. The third driving mechanism 73 specifically adopts a motor, the third driving mechanism 73 drives a third belt pulley to rotate, and the third belt pulley drives the third belt 71 to move.
(2) The fourth belt 72 is arranged in the right area, the width of the fourth belt 72 is the same as that of the original conveyor belt, the fourth driving mechanism 74 specifically adopts a motor, the fourth driving mechanism 74 drives a fourth belt pulley, and the fourth belt pulley drives the fourth belt 72.
(3) The intermediate zone is provided with two identical belts, i.e. the first belt 21 and the second belt 22 are of identical construction. Two belts are located on the upper and lower sides of the middle region, the width of the two belts being slightly less than half the width of the fourth belt 72. First actuating mechanism 23 specifically adopts the motor, and first actuating mechanism 23 drives first belt pulley, and first belt pulley drives first belt 21. The second driving mechanism 24 specifically adopts a motor, the second driving mechanism 24 drives a second belt pulley, and the second belt pulley drives the second belt 22.
2. The structure of the posture judging device 1 will be described below.
The posture determining device 1 specifically employs a laser displacement sensor. A laser displacement sensor is fixed on the first baffle 9 at the joint of the second belt 22 and the fourth belt 72, and the emitted laser beam is vertical to the running direction of the conveying belt. When no rod 8 passes the laser displacement sensor, the laser beam strikes the second baffle 10. When the tobacco rod 8 passes by the laser displacement sensor, a laser beam is irradiated onto the tobacco rod 8.
3. The structure of the stop means 3 is described below.
The stop device 3 is specifically a telescopic cylinder, such as an air cylinder. The telescopic cylinder includes a telescopic rod 31 and a cylinder body 32. The telescopic rod 31 is installed in the cylinder 32. The expansion and contraction of the expansion cylinder are controlled by a switching valve 6. The switching valve 6 is specifically an electromagnetic valve.
The telescopic rod 31 of the telescopic cylinder is fixed with a magnet which moves along with the telescopic rod 31, and the telescopic cylinder is positioned above the joint of the first belt 21 and the second belt 22 and the third belt 71.
Compressed air is introduced into a first opening (namely an air inlet end) a of the switching valve 6, a second opening (an air outlet end) b of the switching valve 6 is connected to a rodless cavity of the telescopic cylinder, and a third opening (an air outlet end) c of the switching valve 6 is connected to a rod cavity of the telescopic cylinder. When the switching valve coil 15 is not powered, the c end is exhausted, the b end is not exhausted, and the telescopic rod of the telescopic cylinder retracts. On the contrary, when the switching valve coil 15 is electrified (24V DC), the c end is not exhausted, the b end is exhausted, and the telescopic rod of the telescopic cylinder extends forwards to block the cigarette sticks 8 on the correcting device 2.
The first magnetic switch 51 and the second magnetic switch 52 are fixed on the rod cavity and the rodless outer wall of the telescopic cylinder, namely the upper side and the lower side of the telescopic cylinder, and the postures of the magnetic switches meet the following conditions: when the telescopic rod 31 of the telescopic cylinder is fully retracted, the first magnetic switch 51 is sensed by the magnet (outputting a DC signal of 24V), and the second magnetic switch 52 is not sensed by the magnet (outputting no signal). On the contrary, when the telescopic rod 31 of the telescopic cylinder is completely extended, the first magnetic switch 51 is not sensed by the magnet, and no signal is output from the first magnetic switch 51; and the second magnetic switch 52 is sensed by the magnet, the second magnetic switch 52 outputs a DC signal of 24V.
4. The structure of the correction effect detection apparatus 4 will be described below.
The correction effect detection device 4 includes a first sensor 41 and a second sensor 42. The first sensor 41 is correspondingly provided with a first reflector 11, and the second sensor 42 is correspondingly provided with a second reflector 12. In some embodiments, both the first sensor 41 and the second sensor 42 employ photosensors.
In some embodiments, both the first sensor 41 and the second sensor 42 employ the same specularly reflective photodetector.
The first sensor 41 is fixed to the first barrier 9 at the right edge of the telescopic rod 31 of the telescopic cylinder. A second sensor 42 is also fixed to the first shutter 9 and is located to the right of the first sensor 41 (i.e. upstream of the delivery of the tobacco rod 8). The first sensor 41 and the second sensor 42 are spaced apart by a distance slightly greater than the width of a cigarette.
In some embodiments, the detection beams of the first sensor 41 and the second sensor 42 are perpendicular to the direction of belt travel.
The first reflector 11 and the second reflector 12 are both fixed to the second barrier 10. The first reflector 11 is aligned with the first sensor 41 and the second reflector 12 is aligned with the second sensor 42.
When there is no object between the photodetector and the reflector, no signal is output from the signal terminal of the photodetector, whereas when there is an object between the photodetector and the reflector, the photodetector outputs a DC signal of 24V.
Next, the circuit connection of the cigarette rod posture correcting device 2 will be described.
Referring to fig. 2 and 3, the posture determining device 1, the first sensor 41, the second sensor 42, the first magnetic switch 51, and the second magnetic switch 52 are all electrically connected to the PLC. The signals output from the posture determining device 1, the first sensor 41, the second sensor 42, the first magnetic switch 51, and the second magnetic switch 52 are all input to the programmable logic controller PLC 13.
The output of the PLC13 is connected to: the switching valve coil 15, four contactor K1 coils 151, K2 coils 152, K3 coils 153, K4 coils 154 and an alarm lamp 155.
Referring to fig. 2 and 3, one end of the main contact of the four contactors K1, K2, K3 and K4 is connected to three-phase alternating current, and the other end is connected to the third driving mechanism 73, the fourth belt 72 motor, the first driving mechanism 23 and the second driving mechanism 24, respectively.
Referring to fig. 5, next, the detection control process is described. The following parameters are defined first: the distance between the front end of the laser displacement sensor and the second baffle 10 of the cigarette rod 8 conveying channel is M. One cigarette has a width X (short side) and a length Y (long side).
Measuring the number m of signals obtained by a laser displacement sensor
The PLC13 controls four contactors K1, K2, K3 and K4 to pull in, and the four motors run and drive the four belts to run. The person causes a correctly positioned rod 8 to run on the conveyor belt and pass from the laser displacement sensor.
The distance signal of the laser displacement sensor is suddenly changed from the value M to the value less than the value M, the PLC13 obtains the distance signal of one laser displacement sensor at intervals of time T0 in the process that the distance signal is suddenly changed from the value less than the value M to the value M, and the number of the obtained distance signals in the process is M.
The above measurement process needs to be performed only once.
(II) measuring the inclination of the cigarette rod 8
In actual operation, the distance signal of the laser displacement sensor is suddenly changed from the value M to the value less than the value M, and the PLC13 is used for changing the distance signal from the value less than the value M to the value M at intervals of T0Obtain oneThe distance signal of each laser displacement sensor is Z1、Z2、Z3……ZNThe number of signals is N.
Calculate out
Then calculate out
Then, the sigma and the sigma are compared0The comparison results in the following judgment results. Wherein σ0The value is set to be very small, such as 0.001-0.03.
The first condition is as follows: sigma is less than or equal to sigma0Then, the running distance of the cigarette rod 8 is calculated
(1) When L is less than (X + Y)/2, the tilt angle alpha of the tobacco rod 8 is 0 DEG
(2) When L is greater than (X + Y)/2, the tilt angle alpha of the tobacco rod 8 is 90 DEG
Case two: sigma > sigma0When Z isnIs Z1、Z2、Z3……ZNAnd is the nth signal, calculates:
based on the above calculation results, various cases are discussed in the following classification.
(1) When AC < (X + Y)/2 or BC > (X + Y)/2, the upper part of the tobacco rod 8 is inclined forward.
The inclination angle α is calculated by the following formula (S1) and formula (S2), and whether correction is made is determined by the magnitude of α. Specifically, three cases are classified. First, if alpha is less than or equal to alpha1While smokingThe strip 8 is only slightly skewed and no correction of the tobacco rod 8 is required. Second, if α is not less than α2When the cigarette 8 is skewed seriously, the cigarette 8 cannot be corrected through the correcting device, the PLC13 enables the contactors K4 and K3 to lose power, the first belt 21 and the second belt 22 stop running simultaneously, the cigarette 8 cannot enter a downstream machine, and the PLC13 drives the alarm lamp 155 to send out an alarm signal to remind a worker to process the cigarette. Third, if α1＜α＜α2In time, the tobacco rod 8 is skewed and corrected by the correcting device. Wherein alpha is1And alpha2Is a set value.
Or
(2) When AC > (X + Y)/2 or BC < (X + Y)/2, the lower part of the tobacco rod 8 is inclined forward.
The inclination angle α is calculated by the following formula (S3) and formula (S4), and whether correction is made is determined by the magnitude of α. Specifically, three cases are classified. First, if alpha is less than or equal to alpha1In time, the tobacco rod 8 is only slightly skewed and no correction is required for the tobacco rod 8. Second, if α is not less than α2When the cigarette 8 is skewed seriously, the cigarette 8 cannot be corrected through the correcting device, the PLC13 enables the contactors K4 and K3 to lose power, the first belt 21 and the second belt 22 stop running simultaneously, the cigarette 8 cannot enter a downstream machine, and the PLC13 drives the alarm lamp 155 to send out an alarm signal to remind a worker to process the cigarette. Third, if α1＜α＜α2In time, the tobacco rod 8 is skewed and corrected by the correcting device. Wherein alpha is1And alpha2Is a set value.
Or
(3) As can be seen from the above analysis, regardless of the inclination direction of the tobacco rod 8, it is possible to determine whether or not the posture correction is necessary for the tobacco rod 8 on the basis of α obtained from the above calculation result in a unified manner according to the following strategy.
Setting two parameters alpha1And alpha2，0°＜α1＜α2＜90°
1、α≤α1In time, the tobacco rod 8 is only slightly skewed and no correction is needed for the tobacco rod 8.
2、α≥α2In the meantime, the tobacco strip 8 is seriously skewed and cannot be corrected, and the following steps are adopted:
(1) stopping the first belt 21 and the second belt 22, leaving the tobacco rod 8 in the first belt 21 and the second belt 22;
(2) the alarm lamp 155 emits an alarm signal.
3、α1＜α＜α2Then, the tobacco rod 8 is corrected according to the following steps:
(1) retaining the tobacco rod 8. The switching valve 6 is powered to drive the telescopic cylinder to extend the telescopic rod 31, and when the first magnetic switch 51 is not sensed and the second magnetic switch 52 is sensed, the telescopic rod 31 of the telescopic cylinder is fully extended.
(2) The tobacco rod 8 is corrected. When the first sensor 41 is sensed, it indicates that the tobacco rod 8 has come into contact with the telescopic rod 31 of the telescopic cylinder. If the upper portion of the tobacco rod 8 tilts forward, the first belt 21 is stopped and the second belt 22 continues to run. If the lower portion of the tobacco rod 8 is tilted forward, the second belt 22 is stopped and the first belt 21 continues to run.
(3) The tobacco rod 8 is stationary. When the first sensor 41 is sensed and the second sensor 42 is not sensed, this indicates that the correction of the tobacco rod 8 has been successful, whereupon the first belt 21 and the second belt 22 are simultaneously stopped so that the tobacco rod 8 is stationary.
(4) No longer blocking the tobacco rod 8. The switching valve 6 is de-energized and the telescopic rod 31 of the telescopic cylinder is retracted, when the first magnetic switch 51 is sensed and the second magnetic switch 52 is not sensed, it indicates that the telescopic rod of the telescopic cylinder is fully retracted.
(5) The tobacco rod 8 is released. The first belt 21 and the second belt 22 run simultaneously, the corrected tobacco rod 8 continuing to run forward to the downstream machine.
Several specific adjustment scenarios are described below.
1. The related contents of the conveyor belt are introduced.
The conveying belt area is divided into a left area, a middle area and a right area, and the length of the middle area is larger than that of one cigarette, so that the middle area can completely cover one cigarette. The mechanism of four conveyor belts is similar to that of the original machine, namely, the motor drives the belt pulley, and the belt pulley drives the conveyor belt:
(1) the left area is provided with a third belt 71. The third driving mechanism 73 drives the third belt pulley to rotate, and the third belt pulley drives the third belt 71 to work.
(2) The right region is provided with a fourth belt 72. The motor of the fourth belt 72 drives the fourth belt pulley to rotate, and the fourth belt pulley drives the fourth belt 72 to work.
(3) The middle area is provided with two identical belts, a first belt 21 and a second belt 22. The two belts are located at the upper side and the lower side, the width of the two belts is slightly smaller than half of the width of the original conveyor belt, the first driving mechanism 23 drives the first belt pulley, and the first belt pulley drives the first belt 21. The second driving mechanism 24 drives the second belt pulley to rotate, and the second belt pulley drives the second belt 22 to work.
2. The relevant contents of the laser displacement sensor are described below.
The laser displacement sensor is used for detecting the distance between the front end of the detector and an object irradiated by the laser beam emitted by the detector.
A laser displacement sensor is fixed on the first baffle 9 at the joint of the first belt 21, the second belt 22 and the fourth belt 72, and a laser beam emitted is vertical to the running direction of the conveying belt.
3. The following describes the relevant contents of the telescopic cylinder, the switching valve 6 and the magnetic switch.
The telescopic cylinder is positioned above the joint of the first belt 21, the second belt 22 and the third belt 71.
Compressed air enters the first opening a of the switching valve 6, the second opening b of the switching valve 6 is connected to the upper end of the telescopic cylinder through an air pipe, and the third opening c of the switching valve 6 is connected to the lower end of the telescopic cylinder through an air pipe. When the coil of the switching valve 6 is not electrified, the third opening c is communicated with the first opening a, the rod cavity of the telescopic cylinder is communicated, and at the moment, the telescopic rod of the telescopic cylinder retracts. On the contrary, when the coil of the switching valve 6 is electrified with a DC signal of 24V, the first opening a is communicated with the second opening b, the rodless cavity of the telescopic cylinder is filled with air, and at the moment, the telescopic rod of the telescopic cylinder extends forwards.
The telescopic cylinder is a telescopic cylinder of the type that a magnet (not shown in the figure) is fixed on a telescopic rod inside the telescopic cylinder, and the magnet can operate along with the operation of the telescopic rod. The first magnetic switch 51 and the second magnetic switch 52 are fixed on the upper and lower sides of the telescopic cylinder, so that when the telescopic rod 31 of the telescopic cylinder is completely retracted, the first magnetic switch 51 is sensed by the magnet, and the second magnetic switch 52 is not sensed by the magnet, at this time, the signal end of the first magnetic switch 51 outputs a 24V DC signal, and the signal end of the second magnetic switch 52 outputs no signal. On the contrary, when the telescopic rod of the telescopic cylinder is fully extended, the first magnetic switch 51 is not sensed by the magnet, and the second magnetic switch 52 is sensed by the magnet, at this time, no signal is output from the signal terminal of the first magnetic switch 51, and a 24V DC signal is output from the signal terminal of the second magnetic switch 52.
4. The structure of the optical first sensor 41 and the second sensor 42 will be described below.
In some embodiments, the first sensor 41 and the second sensor 42 each employ two identical specularly reflective photodetectors.
The first sensor 41 is fixed on the first baffle 9 at the right edge of the telescopic rod of the telescopic cylinder, the detection light beam of the first sensor 41 is perpendicular to the running direction of the conveyer belt, the first reflector 11 is fixed on the second baffle 10 and is aligned with the first sensor 41, when no object is between the first sensor 41 and the first reflector 11, no signal is output at the signal end of the first sensor 41, otherwise, when an object is between the first sensor 41 and the first reflector 11, the first sensor 41 outputs a 24V DC signal.
A second sensor 42 is also fixed to the first shutter 9, the detection beam of the second sensor 42 is also perpendicular to the direction of belt travel, the second sensor 42 is located to the right of the first sensor 41, and is spaced from the second sensor 42 by a distance slightly greater than the width of a cigarette. The second reflector 12 is fixed to the second baffle 10 and aligned with the second sensor 42. the signal terminal of the second sensor 42 outputs no signal when there is no object between the second sensor 42 and the second reflector 12, whereas the second sensor 42 outputs a 24V DC signal when there is an object between the second sensor 42 and the second reflector 12.
Second, the related contents of circuit connection are described below.
As shown in fig. 2 and 3, signals of the laser displacement sensor, the first sensor 41, the second sensor 42, the first magnetic switch 51, and the second magnetic switch 52 are input to a programmable logic controller PLC 13. The output of the PLC13 is connected to: the coil of the switching valve 6, four contactors K1, K2, K3 and K4 coils and an alarm lamp.
One ends of main contacts of the four contactors K1, K2, K3 and K4 are connected with three-phase alternating current, and the other ends of the main contacts are respectively connected to the third driving mechanism 73, the fourth belt 72 motor, the first driving mechanism 23 and the second driving mechanism 24, so that the PLC13 can control the operation and stop of the four motors by controlling the four contactors K1, K2, K3 and K4.
Thirdly, the detection control process is described below.
The angle of inclination α of the rod 8 on the conveyor belt of the rod 8 is defined as: the included angle between the straight line of the long edge of the cigarette rod 8 and the perpendicular line of the running direction of the conveying belt. Alpha is more than or equal to 0 degree and less than or equal to 90 degrees, and the larger the inclination angle alpha is, the more serious the tobacco strip 8 is skewed. PLC13 every other time T0And acquiring and storing distance signals of 1 laser displacement sensor.
The distance between the front end of the laser displacement sensor and the second baffle 10 of the cigarette strip 8 conveying channel is M, when the laser displacement sensor does not detect the cigarette strip 8, the laser beam irradiates the second baffle 10 of the cigarette strip 8 conveying channel, the distance signal detected by the laser displacement sensor is M, when the cigarette strip 8 passes through the laser displacement sensor, the laser beam irradiates the cigarette strip 8, and the distance signal detected at the moment is smaller than M.
When the distance signal detected by the laser displacement sensor is suddenly changed from M to a value smaller than M, the fact that the laser displacement sensor just starts to detect a cigarette at the moment is indicated, and the point on the cigarette rod 8 irradiated by the laser beam at the moment is called as the left vertex A of the cigarette rod 8.
When the distance signal detected by the laser displacement sensor is suddenly changed from a value smaller than M to M, it indicates that a cigarette is about to leave the laser displacement sensor, and the point on the cigarette rod 8 irradiated by the laser beam is called the right vertex B of the cigarette rod 8.
The distance signals of the laser displacement sensors obtained by the PLC13 from the left vertex A of the cigarette rod 8 detected by the laser displacement sensor to the right vertex B of the cigarette rod 8 detected by the laser displacement sensor, namely the distance signals of the cigarette rod 8 passing through the laser displacement sensors are respectively Z1、Z2、Z3……ZNEvery two adjacent signals have a time interval of T0The number of signals is N, the first signal Z1 corresponds to the left vertex A, and the last signal ZNAnd corresponds to the right vertex B. In each drawing, the vertex a is the first vertex detected by the laser displacement sensor, and the vertex B is the last vertex detected by the laser displacement sensor.
(one) measure m
The PLC13 controls the four contactors K1, K2, K3 and K4 to attract, the four motors run and drive the four belts to run, and the speeds of the four belts are identical because the speeds of the four motors are identical and the diameters of the four belt pulleys are identical.
As shown in fig. 4, 5 and 6, so that a piece of non-skewed tobacco travels on the conveyor belt and passes from the laser displacement sensor, the PLC13 every time T, during the time from the detection of the left vertex a of the tobacco rod 8 by the laser displacement sensor to the detection of the right vertex B of the tobacco rod 80The number N of the obtained distance signals of the laser displacement sensor is m.
The width of the tobacco rod 8 is X (short side length), so the distance L that the tobacco rod 8 travels in this process is X; every two adjacent signals have a time interval of T0And thus the time T taken for the processAB＝(m-1)T0(ii) a The speed at which the tobacco rod 8 runs
The above process is only required to be performed once, and if the device is installed for the first time, the above process is performed to obtain the m value.
(II) during actual operation, measuring the inclination of the cigarette rod 8
In actual operation, as shown in fig. 4 to 17, in the process from the detection of the left vertex a to the detection of the right vertex B of the cigarette rod 8 by the laser displacement sensor, the distance signal of the laser displacement sensor obtained by the PLC13 is Z1、Z2、Z3……ZNThe number of the signals is N, and the time interval between every two adjacent signals is T0。
Calculate Z1、Z2、Z3……ZNArithmetic mean of (d):
then calculate Z1、Z2、Z3……ZNStandard deviation of (2)
σ0Is a set value that is taken to be very small, such as 0.01.
1. When sigma is less than or equal to sigma0Then (c) is performed. As shown in FIGS. 7 to 12, Z1、Z2、Z3……ZNThe deviation therebetween is very small, and it is judged that the laser displacement sensor has detected only the short side or the long side of one cigarette in the process, and the inclination angle α is 0 ° or α is 90 °.
Time T used for the processAB＝(N-1)T0
The tobacco rod 8 runs at the speed of：
The distance travelled by the rod 8 is then:
wherein, the width of a cigarette is X (short side), and the length is Y (long side).
If the short edge of the rod 8 passes the laser displacement sensor, the rod 8 travels a distance L equal to the width X of the rod 8. On the contrary, if the long side of the cigarette 8 passes through the laser displacement sensor, the running distance L of the cigarette 8 is equal to the length Y of the cigarette 8, so that the state of the cigarette 8 can be judged by comparing the size of L, and the specific judgment method is as follows:
(1) the first case is: l < (X + Y)/2.
As shown in fig. 4, 5 and 6, the laser displacement sensor detects the short side of the tobacco rod 8, and the tobacco rod 8 is tilted at an angle α of 0 °.
(2) The second case is: l > (X + Y)/2.
As shown in fig. 7, 8 and 9, the laser displacement sensor detects the long side of the tobacco rod 8, and the tobacco rod 8 is tilted at an angle α of 90 °.
2. When σ > σ0Then (c) is performed. As shown in FIGS. 10 to 17, Z1、Z2、Z3……ZNThe deviation between the two is large, so that the short side and the long side of the cigarette rod 8 are judged to be detected by the laser displacement sensor in the process, the cigarette rod 8 is inclined, and the inclination angle is more than 0 degrees and less than alpha and less than 90 degrees.
As shown in fig. 10-17, the intersection of the short and long sides of the tobacco rod 8 is referred to as the center point C.
As shown in fig. 18 and 19, the cigarette rod 8 parameter calculation model is established in the following manner:
A. c, B are the left, middle and right vertices of the tobacco rod 8, AC is perpendicular to BC, and AC occurs prior to BC. AC is the edge of the rod 8 that was first detected by the laser displacement sensor and BC is the edge of the rod 8 that was subsequently detected by the laser displacement sensor.
Referring to fig. 18 and 19, DEF is the line along which the laser displacement sensor is oriented along the direction of travel of the tobacco rod 8, AD, EC, FB and line DEF being perpendicular. C is perpendicular to DA and CH is perpendicular to FB.
When the laser displacement sensor detects the left vertex A, the distance signal is Z1If DA is equal to Z1。
When the laser displacement sensor detects the right vertex B, the distance signal is ZNIf FB is equal to ZN。
Z1、Z2、Z3……ZNMinimum value of Zn，ZnIs the nth signal of the N signals, signal ZnCorresponding to the centre C on the rod 8, so EC ═ Zn；
Then there are the following two equations:
GA＝DA-DG＝DA-EC＝Z1-Zn
HB＝FB-FH＝FB-EC＝ZN-Zn
in the process from the detection of the left vertex A to the detection of the middle vertex C by the laser displacement sensor, the number of the obtained distance signals is n, and the time interval between every two adjacent signals is T0Then the process lasts for a time TAC＝(n-1)T0Speed of operation of the tobacco rod 8
The distance the cigarette rod 8 travels
In the process from the detection of the middle vertex C to the detection of the right vertex B by the laser displacement sensor, the number of obtained distance signals is N-N, and the time interval between every two adjacent signals is T0Then the process lasts for a time TCB＝(N-n)T0Speed of operation of the tobacco rod 8
The distance the cigarette rod 8 travels
Then, the following formula is given:
(1) when AC < (X + Y)/2 or BC > (X + Y)/2, as shown in FIG. 18, AC is the short side and BC is the long side, it is judged that the upper portion of the tobacco rod 8 is tilted forward. The magnitude of the tilt angle can thus be calculated using the following formula.
Or
(2) AC > (X + Y)/2 or BC < (X + Y)/2. If AC is the long side and BC is the short side as shown in fig. 19, it is judged that the lower portion of the tobacco rod 8 is tilted forward. The magnitude of the tilt angle can thus be calculated using the following formula.
Or
The detection flow of α is shown in fig. 20.
(III) correcting the tobacco rod 8
Because the calculation time is short, and the length of the belt in the middle area is greater than the length of one cigarette, after the inclination condition of the cigarette rod 8 is judged in the above manner, the cigarette rod 8 is still located in the middle area, and at this time, the cigarette rod 8 is corrected according to the inclination condition of the cigarette rod 8, specifically as follows:
setting two parameters alpha1And alpha2，0°＜α1＜α2< 90 deg., e.g., alpha1＝10°，α2＝70°。
1、α≤α1In time, the tobacco rod 8 is only slightly skewed and no correction is needed for the tobacco rod 8.
2、α≥α2During the time, very serious skew has taken place for tobacco rod 8, can't rectify tobacco rod 8 through correcting unit, PLC13 makes contactor K4, K3 lose the electricity this moment, and first belt 21 and second belt 22 stop operating simultaneously, and tobacco rod 8 can not enter into the low reaches machine, and PLC13 drive alarm lamp sends alarm signal to remind the staff to handle.
3、α1＜α＜α2In time, the tobacco rod 8 is skewed and corrected by the correcting device.
In case one, if the upper portion of the tobacco rod 8 is tilted forward, the tobacco rod 8 is corrected in the following manner.
1) As shown in fig. 21, when the switching valve 6 is powered on, the switching valve 6 drives the telescopic cylinder, the telescopic rod of the telescopic cylinder extends, and when the first magnetic switch 51 is not sensed and the second magnetic switch 52 is sensed, the telescopic rod of the telescopic cylinder is fully extended.
2) As shown in fig. 22, when the first sensor 41 is sensed, it indicates that the tobacco rod 8 has come into contact with the extension rod 31 of the extension cylinder. The first belt 21 is then stopped and the second belt 22 continues to move the lower portion of the tobacco rod 8 forward as shown in figure 23.
3) As shown in figure 24, when the first sensor 41 is sensed but the second sensor 42 is not sensed, it is indicated that the correction of the rod 8 has been successful. Then, as shown in fig. 25, the first belt 21 and the second belt 22 are stopped simultaneously, so that the tobacco rod 8 is stationary, in order to prevent the tobacco rod 8 from skewing again during the retraction of the telescopic rod of the telescopic cylinder.
4) As shown in fig. 26, when the switching valve 6 is de-energized and the telescopic rod of the telescopic cylinder is retracted, the first magnetic switch 51 is sensed and the second magnetic switch 52 is not sensed, which indicates that the telescopic rod of the telescopic cylinder is fully retracted;
5) as shown in fig. 27 and 28, the first belt 21 and the second belt 22 run simultaneously, the corrected tobacco rod 8 continues to run forward to the downstream machine, and the correction process ends.
In case two, if the lower portion of the tobacco rod 8 is tilted forward, the tobacco rod 8 is corrected in the following manner.
1) As shown in fig. 29, when the switching valve 6 is powered, the switching valve 6 drives the telescopic cylinder, and the telescopic rod of the telescopic cylinder extends, when the first magnetic switch 51 is not sensed and the second magnetic switch 52 is sensed, the telescopic rod of the telescopic cylinder is fully extended.
2) When the first sensor 41 is sensed, as shown in figure 30, it indicates that the tobacco rod 8 has come into contact with the telescopic rod of the telescopic cylinder, so that the second belt 22 is stopped and the first belt 21 continues to move the upper portion of the tobacco rod 8 forward, as shown in figure 31.
3) As shown in figure 32, when the first sensor 41 is sensed but the second sensor 42 is not sensed, it is indicated that the correction of the rod 8 has been successful. Thus, as shown in figure 25, the first belt 21 and the second belt 22 are stopped simultaneously, so that the tobacco rod 8 is stationary, in order to prevent the tobacco rod 8 from skewing again during the retraction of the telescopic rod of the telescopic cylinder.
4) As shown in fig. 26, when the switching valve 6 is de-energized and the telescopic rod of the telescopic cylinder is retracted, the first magnetic switch 51 is sensed and the second magnetic switch 52 is not sensed, which indicates that the telescopic rod of the telescopic cylinder is fully retracted.
5) As shown in fig. 27 and 28, the first belt 21 and the second belt 22 run simultaneously, the corrected tobacco rod 8 continues to run forward to the downstream machine, and the correction process ends.
According to the technical scheme of the embodiment of the invention, the detection and correction of the skewed tobacco strips 8 are realized, the faults of extrusion of the tobacco strips 8, machine halt and the like caused by the skew tobacco strips 8 can be reduced, the product quality is ensured, and the running stability of the machine is improved.
Another embodiment of the present invention further provides a cigarette rod posture correction method, which is implemented, for example, by using the cigarette rod posture correction device provided in any of the above embodiments. The method comprises the following steps:
first, it is determined whether the tobacco rod 8 is tilted during the conveying process.
Secondly, if the inclination occurs, the posture of the cigarette rod 8 is adjusted until the posture meets the requirements.
Alternatively, the attitude adjustment is performed only when the inclination angle of the tobacco rod 8 satisfies the above-described limit condition of α. For this, please refer to the above description, which is not repeated herein.
Finally, the tobacco rod 8 is conveyed continuously.
In some embodiments, the following steps are used to determine whether the tobacco rod 8 is tilted:
firstly, judging the inclined posture of the tobacco rod 8;
secondly, depending on the inclined attitude of the tobacco rod 8, either the first belt 21 or the second belt 22 is moved individually until the attitude of the tobacco rod 8 is satisfactory.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the scope of the present invention.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, but such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (16)
1. A cigarette rod posture correction method is characterized by comprising the following steps:
judging whether the cigarette bar (8) is inclined or not by adopting a posture judging device (1) of the cigarette bar posture correcting device; the attitude judgment device (1) comprises a laser displacement sensor, the laser displacement sensor is fixed on a first baffle (9) at the joint of a second belt (22) and a fourth belt (72) of the correction device (2), and a laser beam emitted by the laser displacement sensor is perpendicular to the running direction of the conveying belt; in the process that the distance signal of the laser displacement sensor is suddenly changed from the value M to the value less than the value M until the distance signal is suddenly changed from the value less than the value M to the value M, every time T0Acquiring a distance signal of a laser displacement sensor, wherein the distance signal of the laser displacement sensor acquired in the process is Z1、Z2、Z3……ZNThe number of signals is N; calculate out
Then calculate out
Wherein σ0Is a set value; the running distance of the cigarette rod (8)
Wherein, when sigma is less than or equal to sigma0If L < (X + Y)/2, the tobacco rod (8) inclination angle α is 0 °, if L > (X + Y)/2, the tobacco rod (8) inclination angle α is 90 °;
if σ > σ0The tobacco rod (8) is in an inclined state, and when the calculated inclination angle alpha of the tobacco rod (8) meets the following relation: alpha is alpha1＜α＜α2A correction device (2) employing the tobacco rod posture correction device corrects the posture of the tobacco rod (8) when the tobacco rod (8) is inclined; wherein if the upper portion of the rod (8) tilts forward, the inclination angle a of the rod (8) is calculated according to the following formula (S1) or formula (S2); such asIf the lower portion of the rod (8) is inclined forward, calculating the inclination angle a of the rod (8) according to the following formula (S3) or formula (S4);
wherein, the formula (S1) is:
the formula (S2) is:
the formula (S3) is:
the formula (S4) is:
in each of the above formulas: the distance signal corresponding to the top point A of the cigarette bar (8) is Z1(ii) a The distance signal corresponding to the top point B of the cigarette bar (8) is ZN(ii) a The distance signal corresponding to the middle vertex C of the cigarette bar (8) is Zn(ii) a The number of distance signals obtained from the top point A of the cigarette rod (8) to the detected middle top point C is n; the number of distance signals obtained from the middle vertex C of the tobacco rod (8) to the detection of the right vertex B is N-N; the number of the obtained distance signals is m in the two mutation processes of the detected distance signals; alpha is alpha1And alpha2Is a set value; the middle vertex C of the tobacco rod (8) is positioned between the vertexes A and B of the tobacco rod (8); the width of cigarette stick (8) is X, and length is Y, and M is the distance of laser displacement sensor front end and cigarette stick transfer passage's second baffle (10).
2. The tobacco rod attitude correction method according to claim 1, wherein the tobacco rod attitude correction device further comprises:
a stop device (3) configured to stop the transport of the tobacco rod (8) when the tobacco rod (8) is tilted.
3. The tobacco rod attitude correction method according to claim 2, wherein the tobacco rod attitude correction device further comprises:
a correction effect detection device (4) for detecting whether the tobacco rod (8) has been corrected for attitude.
4. A rod attitude correction method according to claim 1, characterized in that the correction device (2) comprises:
a first belt (21) which is arranged on the conveying path of the cigarette sticks (8), and the width of the first belt (21) is 1mm-15mm more than that of the cigarette sticks (8); and
the second belt (22) is arranged on the conveying path of the cigarette sticks (8), and the width of the first belt (21) is 1-15 mm more than that of the cigarette sticks (8);
wherein the first belt (21) and the second belt (22) are arranged in parallel.
5. A method according to claim 4, wherein the first belt (21) is provided with a first drive mechanism (23).
6. A method according to claim 4, wherein the second belt (22) is provided with a second drive mechanism (24).
7. A rod attitude correction method as claimed in claim 2, wherein said stop means (3) comprises a telescopic cylinder.
8. The tobacco rod attitude correction method according to claim 7, wherein the tobacco rod attitude correction device further comprises:
a state detection device (5) configured to detect whether the telescopic cylinder is in an extended or retracted state.
9. The tobacco rod attitude correction method according to claim 8, characterized in that the state detection device (5) includes:
the first magnetic switch (51) is arranged on the outer wall of the rodless cavity of the telescopic cylinder;
the second magnetic switch (52) is arranged on the outer wall of the rod cavity of the telescopic cylinder; and
and the magnet is arranged at the end part of the telescopic rod of the telescopic cylinder.
10. The tobacco rod attitude correction method according to claim 7, wherein the tobacco rod attitude correction device further comprises:
the switching valve (6) comprises a first opening, a second opening and a third opening, wherein the first opening is used for being communicated with an external fluid source, the second opening is communicated with a rodless cavity of the telescopic cylinder, and the third opening is communicated with a rod cavity of the telescopic cylinder;
wherein one of the first openings is communicated with the second opening and the third opening.
11. A rod attitude correction method according to claim 3, wherein the correction effect detection means (4) comprises:
-a first sensor (41) arranged upstream of said stop means (3); and
a second sensor (42) disposed upstream of the first sensor (41).
12. A rod attitude correction method according to claim 11, wherein the distance between the first sensor (41) and the second sensor (42) is 1mm-10mm longer than the length of the rod (8).
13. A rod attitude correction method according to claim 11, wherein the first sensor (41) and/or the second sensor (42) comprise a photoelectric sensor.
14. The tobacco rod attitude correction method according to claim 1, further comprising:
and the conveying device (7) is arranged near the correcting device (2) and is used for conveying the tobacco rod (8) to the correcting device (2) and receiving the tobacco rod (8) with the posture corrected by the correcting device (2).
15. A rod attitude correction method according to claim 14, characterized in that the transport device (7) comprises:
a third belt (71) provided downstream of the correction device (2); and
a fourth belt (72) provided upstream of the correction device (2).
16. A rod attitude correction method according to claim 1, wherein said correcting the attitude of the rod (8) comprises the steps of:
judging the inclined posture of the cigarette rod;
and (3) independently moving the first belt or the second belt according to the inclined posture of the cigarette rod until the posture of the cigarette rod meets the requirement.
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| CN111703656A (en) * | 2020-05-19 | 2020-09-25 | 河南中烟工业有限责任公司 | Method for correcting orientation of circulating smoke box skin |
| CN114684426B (en) * | 2022-06-01 | 2022-08-12 | 江苏璞丽达数码科技有限公司 | Automatic packing plant of paper products |
| CN117422089B (en) * | 2023-12-19 | 2024-03-26 | 深圳华龙讯达信息技术股份有限公司 | Intelligent monitoring system, method and storage medium for sorting and conveying cigarette box strips |
| CN117436468B (en) * | 2023-12-19 | 2024-04-09 | 深圳华龙讯达信息技术股份有限公司 | Intelligent monitoring system, method and storage medium for reading codes of cigarette box strips |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102285527A (en) * | 2010-05-17 | 2011-12-21 | 株式会社日立工业设备技术 | Substrate conveying device and substrate inclination correction method |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH691298A8 (en) * | 1997-05-30 | 2001-09-14 | Bobst Sa | BELT CONVEYOR DEVICE FOR LOW SPECIFIC ARTICLES OR PLATES. |
| ITBO20020527A1 (en) * | 2002-08-08 | 2004-02-09 | Gd Spa | GROUP TO CONVEY PACKAGES. |
| EP1556297B1 (en) * | 2002-10-29 | 2008-04-23 | Siemens Aktiengesellschaft | Conveyor system with distributed article manipulation |
| DE102009016727A1 (en) * | 2008-04-12 | 2009-11-12 | Markus Eble | Transport and aligning system for conveying sheets to process in coating machine, has two drives for goods spaced apart from each other, where inclined position correction of goods takes place by short-term differential speed of drives |
| JP5506081B2 (en) * | 2009-10-16 | 2014-05-28 | オークラ輸送機株式会社 | Direction change device |
| US8205738B1 (en) * | 2011-04-08 | 2012-06-26 | Laitram, L.L.C. | Two-belt passive-roller case turner |
| ES2944915T3 (en) * | 2013-08-26 | 2023-06-27 | Bobst Mex Sa | Procedure for Transporting and Rotating Flat Objects |
| CN204264535U (en) * | 2014-11-27 | 2015-04-15 | 山东鲁花生物科技有限公司 | A kind of packing chest differential steering device |
| CN106382907A (en) * | 2016-09-29 | 2017-02-08 | 南京林业大学 | Plate inclination detection method of floor production line |
| TWI619659B (en) * | 2017-03-10 | 2018-04-01 | 盟立自動化股份有限公司 | Sheet conveyor |
| CN108455219B (en) * | 2018-02-13 | 2021-08-31 | 河北欧标智能科技有限公司 | Method and device for detecting and adjusting skew of object on conveyor belt |
-
2018
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102285527A (en) * | 2010-05-17 | 2011-12-21 | 株式会社日立工业设备技术 | Substrate conveying device and substrate inclination correction method |
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