CN114454237B - Fixed-length cutting device and method for pearl cotton - Google Patents
Fixed-length cutting device and method for pearl cotton Download PDFInfo
- Publication number
- CN114454237B CN114454237B CN202210149239.XA CN202210149239A CN114454237B CN 114454237 B CN114454237 B CN 114454237B CN 202210149239 A CN202210149239 A CN 202210149239A CN 114454237 B CN114454237 B CN 114454237B
- Authority
- CN
- China
- Prior art keywords
- blanking
- length
- conveyor belt
- value
- pulse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 23
- 229920000742 Cotton Polymers 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000012937 correction Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 238000012360 testing method Methods 0.000 claims description 21
- 210000002268 wool Anatomy 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 abstract description 27
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000012545 processing Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
- B26D1/157—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis
- B26D1/18—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable carriage
- B26D1/185—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable carriage for thin material, e.g. for sheets, strips or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/38—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with means operable by the moving work to initiate the cutting action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
- B26D7/0625—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by endless conveyors, e.g. belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2628—Means for adjusting the position of the cutting member
- B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses a fixed-length cutting device and method for pearl cotton, wherein the device comprises a frame, the frame is provided with a feeding mechanism, a cutter mechanism and a controller, the cutter mechanism comprises a servo motor and a cutter driven by the servo motor to rotate, the servo motor is electrically connected with the controller, the feeding mechanism comprises a conveyor belt, a conveyor belt driving shaft and a conveyor belt motor, the conveyor belt driving shaft drives the conveyor belt to feed materials in the direction of the cutter, the conveyor belt driving shaft is driven by the conveyor belt motor, and a pulse encoder is arranged on the conveyor belt driving shaft and is electrically connected with a signal input end of the controller. The invention aims to meet the requirement of continuous feeding in the production process, realize the correction of production parameters and compensate the displacement offset brought in the blanking process.
Description
Technical Field
The invention belongs to the field of pearl cotton processing, and particularly relates to a fixed-length cutting device and method for pearl cotton.
Background
Most of common cutting machines in the market at present only can cut out materials with fixed length, and in the cutting process, a feeding mechanism needs to stop working and cannot continuously cut, so that the processing requirements of enterprises on raw materials with different specifications and different speeds are hardly met, and particularly the sustainability of the pearl cotton in the production process cannot be met, the production cost is not favorably saved, and the economic benefit is poor. The conventional method for correcting pulse equivalent is generally adopted by a common blanking machine, and the measured pulse equivalent is counted through measuring the moving distance of the blanking and counting the pulse number at high speed for many times, so as to obtain the average value. However, for the production mode of continuous quantitative cutting of pearl cotton, the counting change frequency of the pulse number is faster, the corresponding pulse number is difficult to monitor in real time, the pulse equivalent accuracy of correction by adopting the traditional method is lower, and the cutting accuracy cannot be improved.
Disclosure of Invention
The invention provides a fixed-length cutting device and method for pearl cotton, which meet the requirement of continuous feeding in the production process, realize the correction of production parameters and compensate the displacement offset brought in the blanking process.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a cotton fixed length cutting device of pearl, includes the frame, the frame is equipped with feed mechanism, cutter mechanism and controller, cutter mechanism includes servo motor and drives rotatory cutter by servo motor, servo motor is connected with the controller electricity, feed mechanism includes conveyer belt, conveyer belt driving shaft and conveyer belt motor, the conveyer belt driving shaft drives the conveyer belt and to cutter direction pay-off, the conveyer belt driving shaft is driven by conveyer belt motor, pulse coder sets up on the conveyer belt driving shaft, pulse coder is connected with the signal input part electricity of controller.
Preferably, the conveyor belt comprises an upper conveyor belt and a lower conveyor belt, the upper conveyor belt and the lower conveyor belt are arranged at intervals in the vertical direction to form a feeding channel, and a distance adjusting screw for adjusting the interval distance between the upper conveyor belt and the lower conveyor belt is arranged on the rack.
Preferably, the discharge hole of the feeding mechanism is provided with a discharge cylinder, the cutter is arranged at one end of the discharge cylinder, which is close to the discharge hole of the feeding mechanism, and the frame is provided with a horizontal adjusting screw for adjusting the horizontal position of the cutter and a vertical adjusting screw for adjusting the height of the cutter.
A fixed-length cutting method for pearl cotton comprises the following steps:
a. Continuously inputting test sample materials by using an initial parameter operation conveyor belt, performing a fixed-length cutting test of the test sample materials, adjusting the initial parameter to meet the performance index of the flatness of the cut materials, and calculating theoretical pulse equivalent delta 0;
b. The conveyor belt runs at a constant feeding speed, performs a plurality of blanking tests of different blanking lengths, obtains the difference value between the blanking length deviation of each time and the previous blanking length deviation according to the blanking actual value and the blanking set value of each time, and calculates a correction factor k according to the difference value and the increment value of the blanking length;
c. Calculating an actual pulse equivalent delta=kχdelta 0 by the correction factor k and the theoretical pulse equivalent delta 0 in step b, and correcting the pulse equivalent;
d. Calculating the linear speed v Wire (C) of the conveyor belt according to the actual pulse equivalent delta, and correcting the linear speed of the conveyor belt;
e. the conveyor belt runs at different feeding speeds each time, performs blanking at a fixed blanking length preset value each time, measures the blanking length actual value each time, calculates the difference between the blanking length actual value and the blanking length preset value, calculates single blanking time according to the difference, and corrects the single blanking time;
f. And (5) matching with a production line to perform normal blanking.
Preferably, in step a, the theoretical pulse equivalent is calculated from the belt drive shaft diameter D and the pulse encoder resolution N m
Preferably, in the step b, the blanking length increases with the number of times n of the test, the increment L Increase the number of of the blanking length is a constant value, and the blanking length deviation DeltaL n＝L Real world n-L Is provided with n is calculated by the actual value L Real world n and the design value L Is provided with n of the blanking length each time.
Preferably, in step b, the difference Δl n'＝ΔLn-ΔLn-1 between the current and previous blanking length deviations Δl n and Δl n-1 is calculated to obtain an average Δl Flat plate of the difference Δl n'.
Preferably, in step b, the correction factor is calculated by the average value DeltaL Flat plate of the deviation differences of the blanking length and the added value L Increase the number of of the blanking length
Preferably, in step d, the conveyor line speed v Wire (C) = f x δ is calculated from the frequency f of the pulse input by the pulse encoder and the actual pulse equivalent δ.
The beneficial effects of the invention are as follows: (1) Continuous feeding is realized while cutting pearl cotton materials with set length, so that the production cost is saved, and the economic benefit is improved; (2) The correction of the actual pulse equivalent is realized only by measuring the related distance of the blanking movement, and compared with the traditional method, the precision is higher, and the method is more suitable for the production requirement of continuous feeding of pearl cotton; (3) According to the actual pulse equivalent, the linear speed of the operation of the conveyor belt can be measured, the single blanking time is further measured, the actual length of the blanking is ensured to be consistent with the set length of the blanking by compensating the displacement offset brought in the blanking process, and the processing precision is improved.
Drawings
FIG. 1 is a schematic view of a construction of the present invention;
FIG. 2 is a feed schematic of the present invention;
FIG. 3 is a schematic diagram of the connection of the present invention;
FIG. 4 is a graph of constant velocity blanking test data according to the present invention;
FIG. 5 is a graph of the equal length blanking test data of the present invention.
In the figure: the device comprises a frame 1, a guide rod 101, a cutter mechanism support 1a, a motor base 1b, a feeding mechanism 2, a conveyor motor 21, a conveyor belt 22, a lower conveyor belt 22a, an upper conveyor belt 22b, a conveyor belt driving shaft 23, a pulse encoder 24, a spacing adjusting screw 3, a positioning frame 4, a touch screen 5, a cutter mechanism 6, a discharging barrel 61, a cutter 62, a servo motor 63, a guard plate 64, a horizontal adjusting screw 7, a vertical adjusting screw 8, an origin proximity switch 9, a start button 10, a controller 11, a servo driver 12, a buzzer 13, a frequency converter 14 and an intermediate relay 15.
Detailed Description
The invention is further described below with reference to the drawings and detailed description.
In the embodiment shown in fig. 1, the pearl wool fixed-length cutting device comprises a frame 1, wherein the frame 1 is provided with a feeding mechanism 2, a cutter mechanism 6 and a controller 11. The feeding mechanism 2 includes a conveyor belt 22, a conveyor belt driving shaft 23, and a conveyor belt motor 21, and the conveyor belt driving shaft 23 is driven by the conveyor belt motor 21. As shown in fig. 3, a pulse encoder 24 is provided on the belt drive shaft 23, and the pulse encoder 24 is electrically connected to a signal input terminal of the controller 11. The controller 11 is a programmable logic controller having a pulse density command, and counts input pulses for a predetermined period of time by using an interrupt input method. As shown in fig. 2, the conveyor 22 includes an upper conveyor 22b and a lower conveyor 22a, and the upper conveyor 22b and the lower conveyor 22a are arranged at intervals in the vertical direction to form a feeding path. The upper and lower conveyors 22b and 22a clamp and convey the pearl wool forward as the pearl wool passes through the feeding path of the upper and lower conveyors 22b and 22 a. The machine frame 1 is provided with a vertical guide rod 101, the guide rod 101 is provided with a positioning frame 4, an upper conveying belt 22b is arranged on the positioning frame 4, the machine frame 1 is provided with a spacing adjusting screw 3, when the spacing adjusting screw 3 rotates, the positioning frame 4 is driven to move along the guide rod 101 so as to change the vertical position of the upper conveying belt 22b, and the spacing distance between the upper conveying belt 22b and the lower conveying belt 22a is adjusted so as to be convenient for being matched with the size of the pearl cotton material.
As shown in fig. 1, the cutter mechanism 6 includes a servo motor 63 and a cutter 62 rotated by the servo motor 63. The discharge gate of feed mechanism 2 is equipped with ejection of compact section of thick bamboo 61, and cutter 62 sets up the one end that is close to the discharge gate of feed mechanism 2 in ejection of compact section of thick bamboo 61. The frame 1 is provided with a cutter mechanism support 1a and a vertical adjusting screw 8, and the cutter mechanism support 1a can be driven to move along the vertical direction when the vertical adjusting screw 8 rotates, so that the height position of the cutter 62 is adjusted. The cutter mechanism support 1a top is equipped with motor cabinet 1b, and servo motor 63 installs on motor cabinet 1b, and motor cabinet 1b can be along horizontal direction adjusting position, and motor cabinet 1 a's horizontal migration direction is unanimous with conveyer belt width direction. In addition, a horizontal adjusting screw rod 7 is arranged, and the horizontal position of the cutter 62 can be adjusted when the horizontal adjusting screw rod 7 rotates. Thus, by moving in the vertical and horizontal directions, the position of the cutter 62 is precisely adjusted, ensuring that the cutter 62 can effectively cut off the material. In addition, guard plates 64 are arranged on two sides of the cutter 62 respectively, and the guard plates 64 can cover the turning radius of the cutter 62, so that the cutter 62 is prevented from being exposed, and the production safety is ensured.
As shown in fig. 3, the controller 11 is connected to the servo driver 12, and the servo driver 12 is connected to the servo motor 63 via a power line, thereby electrically connecting the servo motor 63 to the controller 11. The servo driver 12 receives the pulse command signal sent by the controller 11, and the pulse command signal includes three signals of pulse frequency, pulse number and motor running direction, and transmits the three signals to the servo motor 63. The start button 10, the touch panel 5, the pulse encoder 24, and the origin proximity switch 9 are connected to the controller 11 through signal lines. The pulse encoder 24 is rigidly connected to the driving shaft 23 of the conveyor belt through a coupling, converts the rotated radian into pulses and feeds the pulses back to the controller 11, and the controller 11 converts the conveying distance and the running line speed of the conveyor belt through the pulse number and the pulse density respectively so as to realize accurate positioning and variable speed adjustment. The control signal input end of the intermediate relay 15 is connected to the signal output end of the controller 11, the inversion signal control end of the frequency converter 14 is connected to a pair of normally open contacts of the intermediate relay 15, and the controller 11 can control the start and stop of the motor inversion operation. The buzzer 13 is electrically connected with the signal output end of the controller 11, and the controller 11 controls the buzzer 13 to work so as to realize the completion prompt of setting the blanking times.
In the actual operation process, the interval distance between the upper conveyor belt 22b and the lower conveyor belt 22a is adjusted through the interval adjusting screw 3 so as to adapt to the size requirement of the pearl cotton material and ensure stable feeding. The position of the cutter 62 is adjusted through the horizontal adjusting screw 7 and the vertical adjusting screw 8, so that the cutter 62 cuts off materials rapidly and smoothly in the rotation process. The conveyor belt motor 21 drives the conveyor belt driving shaft 23 to rotate, the conveyor belt driving shaft 23 drives the conveyor belt to operate, pearl cotton is clamped and fed to the position of the cutter 62 through the upper conveyor belt 22b and the lower conveyor belt 22a, and the servo motor 63 drives the cutter 62 to rotate for one circle at a set speed so as to cut off materials. During the cutting of the cutter 62, the feeding mechanism 2 continues to feed until the next cutting process. As shown in fig. 2, a pulse encoder 24 is provided on the belt driving shaft 23, converts rotation information of the belt driving shaft 23 into a digital pulse signal and transmits the digital pulse signal to the controller 11, so that detection of speed and displacement is facilitated.
A fixed-length cutting method for pearl cotton comprises the following steps:
a. And (3) continuously inputting test samples by using an initial parameter operation conveyor belt, performing a fixed-length cutting test on the test samples, adjusting the initial parameter to meet the performance index of the flatness of the cut materials, and calculating theoretical pulse equivalent delta 0. As shown in fig. 2, since the pulse encoder is provided on the belt drive shaft, the theoretical pulse equivalent is calculated from the belt drive shaft diameter D and the pulse encoder resolution N The pulse equivalent refers to the displacement of the positioning control movement generated when the controller outputs a positioning control pulse, the resolution of the pulse encoder refers to the number of pulses fed back by one rotation of the pulse encoder, and when the encoder rotates one rotation, the driving shaft of the conveyor belt moves forward by a long circumferential distance pi D. In the embodiment, the diameter D of the driving shaft of the conveyor belt is 155mm, the resolution N of the pulse encoder is 2500pls/r, and the theoretical pulse equivalent is calculated preliminarily:
b. Because the cutter blank in-process, feed mechanism still continues the feeding, and in the servo completion single blank time of cutter, feed mechanism has fed a distance. In the single cutting process of the cutter, the servo motor rotates one circle relative to the original position in the positive direction at a set speed, and after each time of cutting, the cutter still returns to the original position, so that the servo motor drives the cutter to finish the single cutting for the time delta t, namely the time interval from the original position to the moment of leaving the cutter for cutting is unchanged. Let the conveyor feed line speed v Wire (C) , this time period, the feed distance of the feed mechanism is deltas; the diameter theoretical value and the actual value of the driving shaft design of the conveyor belt are respectively D 0 and D; the set value and the actual value of the blanking length are L Is provided with 、L Real world respectively, and the theoretical value and the actual value of the pulse equivalent are delta 0 and delta respectively; let correction factor be k, let Then
ΔL＝L Real world -L Is provided with ＝(k-1)·L Is provided with +v Wire (C) ·Δt
ΔLn-ΔLn-1＝(k-1)×(L Is provided with n-L Is provided with n-1)
When an actual test is performed, the conveyor belt runs at a constant feeding speed, and different blanking lengths are set each time, in this embodiment, the blanking length increases with the number of times n of the test during the blanking test, and the increment L Increase the number of of the blanking length is a constant value. As shown in fig. 4, 6 times of the blanking length tests were performed, and the increment of the blanking length L Increase the number of was a constant value, i.e., L Increase the number of ＝L Is provided with n-L Is provided with n-1 =500 mm, and the blanking lengths were 500mm,1000mm,1500mm,2000mm,2500mm,3000mm in this order. And calculating the length deviation delta L n＝L Real world n-L Is provided with n of each cut by using the actual value L Real world n of the length of each cut and the design value L Is provided with n of the length of each cut, wherein the length deviation of 6 cuts is 187.4mm,194.8mm,202.3mm,209.7mm,217.2mm and 224.5mm in sequence. The average value Δl Flat plate =7.4 mm of the difference Δl n' of the blanking length deviation was obtained by averaging the five results of the calculation of the blanking length deviation Δl n at the present time and the previous blanking length deviation Δl n-1, and the difference Δl n'＝ΔLn-ΔLn-1 of the blanking length deviation was 7.4mm,7.5mm, and 7.3mm in this order. Calculating a correction factor k by an average value DeltaL Flat plate of the deviation differences of the blanking length and an added value L Increase the number of of the blanking length:
c. Calculating the actual pulse equivalent by the correction factor k and the theoretical pulse equivalent delta 0 in step b In this embodiment,/> And the pulse equivalent is corrected.
D. The conveyor line speed v Wire (C) is calculated from the actual pulse equivalent delta and corrected. Setting the sampling time as t, and setting the sampling time as a unit ms; the number of pulses acquired in real time at each time by the pulse density instruction is m, and the frequency f of the input pulses is calculated as follows:
Unit Hz
In combination with the pulse equivalent, the conveyor feed line speed v Wire (C) is calculated as follows:
Unit mm/s
The single-phase pulse sampling time of the encoder of the system is 200ms, and the obtained linear speed of the conveyor belt is:
The conveyor linear velocity v Wire (C) = f x delta is calculated from the frequency f of the pulse input by the pulse encoder and the actual pulse equivalent delta. And assigning the converted linear speed to a corresponding power-down maintaining data storage address through controller programming, and displaying the corresponding power-down maintaining data storage address on a touch screen.
E. The conveyor belt runs at different feeding speeds each time, performs blanking at a fixed blanking length preset value each time, and measures the actual value of the blanking length each time. In this example, as shown in fig. 5, 5 times of blanking tests were performed in total, the linear speeds v Wire (C) of the conveyor belt were respectively 1000mm/s,1500mm/s,2000mm/s,2500mm/s,3000mm/s, the preset values of the blanking lengths were fixed to 1000mm, the actual values of the blanking lengths L Real world for each test were measured, and were found to be 1091mm,1133.5mm,1180mm,1225mm,1270mm, and the differences Δl between the actual values of the blanking lengths and the preset values of the blanking lengths were calculated, and were found to be 91mm,133.5mm,180mm,225mm,270mm, respectively. Calculating single blanking time by the differenceThe results of five times are averaged to be 0.09s, 0.091s,0.089s,0.09s in sequence and input into a controller to finish the correction of single blanking time.
F. And (5) matching with a production line to perform normal blanking.
Claims (6)
1. A fixed-length cutting method for pearl cotton comprises the following steps:
a. Continuously inputting test sample materials by using an initial parameter operation conveyor belt, performing a fixed-length cutting test of the test sample materials, adjusting the initial parameter to meet the performance index of the flatness of the cut materials, and calculating theoretical pulse equivalent delta 0;
b. The conveyor belt runs at a constant feeding speed, performs a plurality of blanking tests of different blanking lengths, obtains the difference value between the blanking length deviation of each time and the previous blanking length deviation according to the blanking actual value and the blanking set value of each time, and calculates a correction factor k according to the difference value and the increment value of the blanking length;
c. Calculating an actual pulse equivalent delta=kχdelta 0 by the correction factor k and the theoretical pulse equivalent delta 0 in step b, and correcting the pulse equivalent;
d. Calculating the linear speed v Wire (C) of the conveyor belt according to the actual pulse equivalent delta, and correcting the linear speed of the conveyor belt;
e. the conveyor belt runs at different feeding speeds each time, performs blanking at a fixed blanking length preset value each time, measures the blanking length actual value each time, calculates the difference between the blanking length actual value and the blanking length preset value, calculates single blanking time according to the difference, and corrects the single blanking time;
f. And (5) matching with a production line to perform normal blanking.
2. The method for cutting pearl wool into a fixed length according to claim 1, wherein in the step a, theoretical pulse equivalent is calculated by a driving shaft diameter D of a conveyor belt and a resolution N m of a pulse encoder
3. The method according to claim 1, wherein in the step b, the blanking length increases with the number of times n of the blanking test, the increment of the blanking length L Increase the number of is a constant value, and the blanking length deviation Δl n＝L Real world n-L Is provided with n is calculated each time by the actual value of the blanking length L Real world n and the design value of the blanking length L Is provided with n.
4. A method of cutting pearl wool according to claim 3, wherein in step b, the average Δl Flat plate of the difference Δl n , is calculated by calculating the difference Δl n ,＝ΔLn-ΔLn-1 between the current difference Δl n and the previous difference Δl n-1.
5. The method of claim 4, wherein in step b, the correction factor is calculated by the average value DeltaL Flat plate of the deviation difference of the stock length and the added value L Increase the number of of the stock length
6. The method according to claim 1, wherein in the step d, the linear speed v Wire (C) = f x δ of the conveyor belt is calculated based on the frequency f of the pulse input from the pulse encoder and the actual pulse equivalent δ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210149239.XA CN114454237B (en) | 2022-02-18 | 2022-02-18 | Fixed-length cutting device and method for pearl cotton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210149239.XA CN114454237B (en) | 2022-02-18 | 2022-02-18 | Fixed-length cutting device and method for pearl cotton |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114454237A CN114454237A (en) | 2022-05-10 |
| CN114454237B true CN114454237B (en) | 2024-05-14 |
Family
ID=81414885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210149239.XA Active CN114454237B (en) | 2022-02-18 | 2022-02-18 | Fixed-length cutting device and method for pearl cotton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114454237B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05184751A (en) * | 1991-06-01 | 1993-07-27 | Gm Pfaff Ag | Method for sewing together two pieces of material so that their patterns match |
| CN1293107A (en) * | 1999-10-01 | 2001-05-02 | 富士摄影胶片株式会社 | Deformed correcting method and cutting method, deformed correcting and cutting devices for thin sheet body |
| CN103403631A (en) * | 2011-03-15 | 2013-11-20 | 欧姆龙株式会社 | CPU of PLC, system program for PLC, and recording medium storing system program for PLC |
| CN107452392A (en) * | 2013-01-08 | 2017-12-08 | 杜比国际公司 | The prediction based on model in threshold sampling wave filter group |
| CN208681742U (en) * | 2018-07-11 | 2019-04-02 | 厦门市地隆包装材料有限公司 | A kind of pearl cotton length cutting machine |
| CN213365320U (en) * | 2020-12-04 | 2021-06-04 | 杭州勤鹄智能设备有限公司 | Automatic blank control system |
-
2022
- 2022-02-18 CN CN202210149239.XA patent/CN114454237B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05184751A (en) * | 1991-06-01 | 1993-07-27 | Gm Pfaff Ag | Method for sewing together two pieces of material so that their patterns match |
| CN1293107A (en) * | 1999-10-01 | 2001-05-02 | 富士摄影胶片株式会社 | Deformed correcting method and cutting method, deformed correcting and cutting devices for thin sheet body |
| CN103403631A (en) * | 2011-03-15 | 2013-11-20 | 欧姆龙株式会社 | CPU of PLC, system program for PLC, and recording medium storing system program for PLC |
| CN107452392A (en) * | 2013-01-08 | 2017-12-08 | 杜比国际公司 | The prediction based on model in threshold sampling wave filter group |
| CN208681742U (en) * | 2018-07-11 | 2019-04-02 | 厦门市地隆包装材料有限公司 | A kind of pearl cotton length cutting machine |
| CN213365320U (en) * | 2020-12-04 | 2021-06-04 | 杭州勤鹄智能设备有限公司 | Automatic blank control system |
Non-Patent Citations (1)
| Title |
|---|
| 输送机定位控制中旋转编码器的技术运用与实践;张旻;;中国培训;20180201(第02期);第132-134页及136页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114454237A (en) | 2022-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106862652B (en) | A kind of square tube multi-angle sawing machine | |
| CN206614091U (en) | A kind of square tube multi-angle sawing machine | |
| CN107764188B (en) | Device and method for detecting length and inclination of single crystal silicon rod | |
| CN102063085A (en) | Fixed-length cutting control device and method | |
| CN114454237B (en) | Fixed-length cutting device and method for pearl cotton | |
| CN113305577A (en) | Numerical control section end face milling center | |
| CN215145812U (en) | Automatic change online laser pipe cutting machine | |
| CN112757378A (en) | Online section bar cutting machine | |
| CN201970390U (en) | Large-scale inner and outer numerical control electro-ceramics trimming machine | |
| CN210650912U (en) | High-speed blanking machine control system | |
| CN210412309U (en) | Fixed-distance cutting device for cable processing | |
| CN109108732B (en) | Automatic laser positioning device and method for variable-thickness plate | |
| CN217020589U (en) | Straw cutting machine | |
| CN212191511U (en) | Steel member continuous cutting machine | |
| CN113182608B (en) | Multi-row band sawing machine and cutting method for multi-row band sawing machine | |
| CN212829308U (en) | Automatic film sticking device | |
| CN210061294U (en) | Punch for half-cutting and movable half-cutting machine | |
| CN114311254B (en) | Detection mechanism and wallboard cutting device | |
| CN212917177U (en) | Accurate feeding control device of automatic feeding machine | |
| CN104552395A (en) | Door and window glazing bead cutting tool and technological method | |
| CN109571606B (en) | Rotary cutting control system and method | |
| CN112320379A (en) | Feeding mechanical equipment | |
| CN217223828U (en) | Flying shear system for producing open pipes | |
| KR20100000714U (en) | Press Cuter of Roll Forming Feeder | |
| CN211028517U (en) | High-efficiency plasma material cutting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |