Based on the basic concepts of line balance and action research, this paper introduces the application of action research in improving line balance.
The general formula of line balance rate is given. This paper puts forward the application of Dabaoyi software in action research, and studies students by computer.
Analyze and optimize the bottleneck process in the production line, so as to reduce the operation time of the bottleneck process and improve the balance of the production line.
Finally, an example of an enterprise using Dabaoyi to improve the production line is given. Through action research, the line balance rate increased by 17, and the daily production capacity was improved.
From 100 to 127, the benefits of Dabaoyi software are verified.
Keywords: line balance; Dabaoyi; Action research; Bottleneck process
China Library Classification Number: TH 18 Document Identification Number: A.
The Application of Sports Learning in line balance
Method based on software double e
Zhang
(zhengzhou institute of aeronautical industry management, Zhengzhou, China 4500 15)
Abstract: Based on line balance and the basic concepts of sports research.
The method of improving line balance by motion analysis is put forward. The formula of the line is
The equilibrium ratio is put forward. This paper points out that the software Double-E can be used for
Motion research, using computer to analyze and optimize the motion of bottleneck process,
This can reduce their operation time and greatly improve the 1 line balance. Finally, for example.
This paper introduces the improvement of production line by double E method in an enterprise, and the line balance rate is
It increased170,4, and the daily output increased from 100 to 127, which proved the benefit.
The result of double e.
Keywords: line balance; Double e; Action research; Bottleneck operation
The main goal pursued by enterprises is to obtain the elements of production system input.
In order to effectively use, reduce costs, ensure quality and safety, and increase output.
Rate, get the best benefit. Line balance is to solve the problem of production line efficiency.
The most important method system. Combined with computer technology, the bottleneck process is analyzed.
Conduct action analysis to reduce the bottleneck process time, thus increasing the output.
The balance of production line provides an important idea for the optimization of production line [1].
Basic concept of 1 line equilibrium
Line balance averages all production processes,
And adjust the workload to make the operation time as close as possible.
Means and methods. To measure the effect of line balance, you can use
Line balance rate is a quantitative index. The formula is as follows.
Line balance leads a wife. .
∑t
I = 1 ( 1
Among them, C T(Cyele Time) is the worker who works the longest time on the production line.
The operation time of the sequence is the cycle time.
It can be seen from the formula (1) that the line balance rate is determined by the longest process (bottle
Application of online balance of the software of big insurance instrument
Neck process) time, therefore, the operation of bottleneck process is reduced.
Time is the key to improve the line balance rate. The line balance leads Vietnam.
The higher the production line, the smaller the man-hour loss and the higher the overall efficiency of the production line.
Tall man. The balancing production line can comprehensively utilize action analysis, operation analysis,
Program analysis and other basic industrial engineering methods.
2 Based on the action research of Dabaoyi
2. 1 action research
Action research, also known as action analysis, is about operational action.
Conduct detailed decomposition research to eliminate unnecessary and ineffective actions and other irrationalities.
Phenomenon, make the action more simplified and more reasonable, thus improving production efficiency.
The method of rating. Its essence is to study and analyze people's various work operations.
Subtle actions, that is, moving elements, delete invalid moving elements and make the operation simple.
It is effective for improving work efficiency. Motion analysis can be used in other methods.
When it is invalid, it is a unique secret weapon for IE personnel. it
From the most basic "animal elements", we seek to improve the production space.
Line balance l3].
2.2 Functions of Dabayi Software
Dabaoyi software is to convert live video into computer-recognizable.
After MPEG4-4 format, motion analysis and research are carried out by computer.
Tools. IE staff only need to spend a little time and energy in the office.
Operating the mouse and keyboard in the room can complete motion analysis and standard working hour system.
Fixation, operation improvement, capability analysis, staffing and new employee training and teaching.
Cheng and a series of work, greatly saving time and manpower. Dabao yiruan
The software has the following main functions.
(1) minutes to play the video, just click the mouse.
You can do very accurate motion analysis.
(2) Integrate images and analysis tables, and watch whatever you want.
Action images all have analysis data.
(3) The operation time recorded in action research can be input by element type.
Line statistical calculation.
(4) redundant patterns can be deleted, and each marking action can be used.
Editing and playing at different speeds are very convenient, and action research is also very convenient.
It is convenient to make standard operation time.
(5) Output the analysis results in the form of text and Excel.
Output work instructions with images in HTML format.
(6) By using the dual-screen contrast and playback function, not only can the previous
After comparison, it can also be compared between different operators.
The main process of action research with the big insurance instrument is shown in figure 1.
As shown in the figure.
Dabaoyi software can decompose an action process into multiple bases.
This kind of action, so as to find out unreasonable actions and carry out unreasonable actions.
Improve and optimize, thus improving the balance of the production line.
A 24 one
Figure 1 Action Time Analysis Process
3 improvement and implementation of action research
3. 1 Analysis of the present situation of production line
The computer mainframe assembly and fixing department of a company works efficiently every day.
The time is 7.5h, which consists of seven processes, as shown in Figure 2.
Actual operation time and its histogram.
It can be seen that the time of the D process is 268.94 s, which is an assembly line.
The c.t value of the bottleneck process, that is, the assembly line, is 268.94s s. This
Bottleneck will not only limit the output speed of the whole production line, but also affect
Stimulated the productivity of other processes. The replacement formula (1) can
Calculate the line balance rate of this section and get the rate of this section by the way.
Average daily production capacity.
english word
Fig. 2 Running time chart
Bank balance rate Bai Xilei × × 1o0 =
19 8 _ 2 1+203.75+2o 7. 18+268.94+2o 9.58+ 195. 12+2 13。 O6
7×268.94
The third stage of industrial engineering and management
× 1OO ×79.46
Daily production capacity = =lO0 pieces
When the balance rate is only 79.46, the assembly line is
Can not be organized into a continuous assembly line, the goal of the enterprise is to pass the excellent
The balance rate will be increased to more than 9O, and the average daily production capacity will also be greatly improved.
Increase the degree.
3.2 Implement Dabao-1 software for action research.
Action research is the unique secret weapon of IE personnel, and Dabao is easy to be soft-hearted.
The application of software has increased the convenience and operability for action research.
Make love. Next, we will use Dabaoyi software to analyze the action of process D,
The operation interface of this process is shown in Figure 3. The whole process is subdivided into
There are 44 basic movements, and 8 movements are obviously lagging behind.
We improved one by one.
1 name week is greater than the beginning of S. T ST and j.
0 begins to mark 0 1T.3 and lt.361t.361× o0: o0: o0.
L turn around and take the board l6.4t6.4too0: o0:1t.
2 check 1 3. T4 3。 T4 3..T4 3。 4 L 1 OO0: OO0: 23。
3 Take the fittings elsewhere 1 9.64 0 1× o0: o0: 27.
4 Assemble a wiring18.168.168.1650o0: o0: 37.
5 label 1 8.24 8.2d8.24 50o0: o0: 45
6 Prepare accessories14.4 413 △ o0: o0: 53.
T- plug-in accessories:116.2316.2316.23 50o0: o0: 58 on the motherboard.
8 Lock nut13.36 3.36 3 000: 01:14.
9 Pick up the fallen nuts13.87015× 00: 01:1t.
10 Install the first nut 1 3.7 3.t3.t50o0: 0l: 2l.
1 1 Install the second nut 1 5.89 5.89 5.89 50o0: 0i: 25.
12 Install the third nut 1 3.t73.tt3.tt50o0: 0 3l.
13 Install the first nut19.84 9.84 5× o0: 0i: 34.
14 Install the fourth nut 1 4.89 4.89 4.89 5 0o0: 0i: 44.
L5 Install the fifth nut14.164.164.1650o0: 0: 49.
16 Clam in the right hand and14.124.124.1210oo0: 0l: 53 in the left hand.
17 do13.1t3.1t3.1t0o0: 0l: 57 on the right-hand pen and the auxiliary board.
L8 fix Mu4 board on the motherboard11.1.d31.431.435438+0.4350o0: 02: 0l.
19 grasping screws12.59 2.59 3 000: 02:12
20 grasping the wrong tool1i.35003× 00: 02:15
2 play the first screw l4.89 4.89 4.89 5 000: 02: 6.
22 Drive the second screw14.14.150o0: 02: 21'
23 play the third screw L3.08 3.08 3.08 5 oo0: 02: 25'
24 hit the fourth screw 1 3.32 3.32 3.32 5 oo0: 02: 28.
25 hit the fifth screw 1 4.35 4.35 4.35 5 0o0: 02: 3l.
26 Cha15.64 5.64 5.64110o0: 02: 36
27 Adjust the workpiece12.47 2.47 2.4713 △ o0: 02: 4l
28 bring the switchboard to the assembly position14.0t 4.07 4.0t 4ooo 0: 02: 44i.
29 assembly plate113.t213.d213.t25ooo 0: 02: 48i
Insert the workpiece into the base16.39 6.39 6.39 50o0: 03:12.
3l grasping screw14.164.164.1630o0: 03: 08i
Drive the first screw16.136.136.1350o0: 03:120.
33 = First screw 4.54 4.54 4.54 50o0: 03: 18
Drive the third screw 1 3.6 3.6 3.8 50o0: 03: 23i.
Drive the fourth screw15.165.165.1650o0: 03: 27i.
36 Grasp the screw again 1 4.44 4.44 3 △ 00: 03: 32.
Drive the fifth screw14.6l4.614.615000: 03: 36i.
38 Place the workpiece horizontally13.13.11000: 03: 41i.
Unwind the winding thread15.6g 5.69 5.69l3△ 00: 03: 44
40 jumper132.05 32.05 32.05 50o0: 03: 50'
4 1 assembly parts18.22 8.22 8.22 5 oo 0: 04: 22l
Check14.06 4.06110o0: 04: 30l
43 Hand over the workpiece to the next working procedure 1 2.34 2.34 2.34 20o0: 04: 34
Extracurricular activities19.69001× o0: 04: 36i
45 1 1 0 O0:04:46
Fig. 3 Analysis result diagram
(1) Action L needs to turn around. Our improvement measure is to put the panel
Put it on the console and change the excessive turning action into forearm stretching action;
(2) As enterprises have stepped up the inspection of incoming materials,
Action 2 Installation inspection can be deleted directly;
(3) The nut picked up in Action 9 is purely a worker's mistake.
Error, can be deleted;
(4) Action 13 was loaded with nuts because it was not in place for the first time.
Remedial operation is a direct cancellation caused by workers' hesitation;
(5) Action 20 is caused by both workers and workers.
Because the position is not good, hang the electric screwdriver with "telescopic rope"
Right above the console, convenient for tools to use;
(6) Action 36 is to take the screw twice in one operation, and we
Standardize workers to take five screws at a time to reduce repetitive actions;
(7) Action 39 is caused by the unreasonable layout of the production site.
Yes, just wind the first thread around the pulley and insert the thread directly.
(8) Action 44 is to delete after-hours activities.
In addition to the above eight items, other details can be further improved.
After the improvement, the computer outputs several comparative statistical charts before and after the improvement.
For our comparison. First, let's look at the statistical results, as shown in Figure 4.
As shown in fig. 5. Comparing the distribution of motifs before and after improvement, it happened.
Change.
Form a circle
■ Inspection (inspection)
Set of graphs
prepose
■ grab
Verbal delay (silent delay)
■ Use (use)
Alignment (position)
A move.
Fig. 4 Pie chart of improved pre-factor distribution
■ extension.
■ Inspection (inspection)
Assemble (assemble)
prepose
■ grab
Inevitable delay
● Use (use)
Alignment (position)
■ moving
Fig. 5 pie chart of motilin distribution after improvement
The number of motifs before and after improvement is obviously reduced, among which the delay
The pheromone was completely cancelled. Let's look at valid verbs and invalid verbs.
The pie chart distribution of the main motif and the auxiliary motif is flatter.
Observe the statistical results before and after improvement, as shown in Figure 6 and Figure 7.
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