Agreement (acquisition) of operations is the process of drawing up organizational operations through appropriate selection of technologically indivisible operations. The main purpose of negotiation is to clearly define the scope of work for each operation is guided by the quantum of flux. 

To ensure smooth operation flow of the operation agree (pick up time) so that their length was equal to or multiple of the beat flow. 

The terms of reconciliation time operations

Based on quantum flow define the terms of negotiation time operations for odnofaznogo flow according to the formula HBP = 0,98 1,05...URT, where HBP is the standard time for the operation; 0,98 1,05...are the coefficients that define the limits of permissible deviations from the range (-2...5%); Kr - number of workers on operations.

On the found deviation limits the time of operations and the processing sequence for reconcile (align) operations by selecting or combining technologically indivisible operations into organisational. This is to ensure that operations flow duration was approximately equal to or multiple of the beat and provided the equipment during the technological flow.

When negotiating transactions, in addition to the conditions of approval determined by the above formula must be met in the following production requirements.

1. Save the sequence of operations in accordance with prepared the technological sequence of processing. However, in some cases, can be permitted the following deviation: 

change in sequence of indivisible operations of individual parts, if this change will not cause deterioration in product quality; for example, the side pockets in outerwear products possible, without compromising the quality of the processing, prithwijit with razotajiem side seams, ie not at the end of the handle pocket, and after certain other operations;

the location of operations in non-conveyor flows (aggregate-group, small series, etc.) in a sequence in which the products in the manufacturing process back to one or two jobs; in the conveyor flow reverse movement of the goods is unacceptable. 

2. Combine the indivisible operations, the same categories and specialties. and homogeneous in nature (for applicable fixtures, color and type of yarn, thickness sew on the sewing machines, fabrics, etc.). In some cases, may also be admitted some deviations:

the Union of indivisible operations of adjacent digits (second with third, third with fourth, etc.) and sometimes various bits (e.g., first and third, second and fifth); 

Association with the machine and Ironing work manual work that is performed without the use of needles;

the consolidation of operations performed on various special machines (buttonhole and bar tacking or button sewing, blind stitch and timetoknow or bartacking, etc.), if the duration of the operations performed on these machines is less than the quantum (for a more complete use of special equipment, special machines are sometimes used for multiple processes). 

To increase the accountability of the workers for the quality of machining is necessary to combine indivisible operations small (not main) components so that their performance was concentrated in a smaller number of possible operations flow.

Operations, calculated per worker, are called equal, and designed for several working - time operations. 

The number of multiple operations, picked from several atomic operations should be minimal, because these operations at presence in them of several different works complicate the work of artists and can cause a decrease in their productivity. In addition, the application of multiple operations in non-conveyor flows is necessary to transfer the product through several jobs.

In a pipelined multiple threads of operation in the beginning of the process only allowed for two workers. Operation designed for three or more workers, apply, if all parts of the product are connected, as in this case it is necessary to work in the exchange, i.e. the product to be taken from the cell and processed to return to his place; while the small details may be lost or confused.

For fastening certain numbers of cells on the conveyor for workers to provide for multiple operations, designed only for such quantity of work, which is divisible, the total number of cells of the conveyor (2, 3, 4, 6, as the total number of cells Transporter is usually taken in multiple of 12).

In streams that manufacture seasonal products (for example, when transitioning from the manufacture of winter coats in winter), it is necessary to maintain the previously set primary process. For this processing, insulation laying, it is advisable to draw from the main thread and promptly put it on the mounting (Assembly) section. 

During the transition the manufacture of products from one model to another is also necessary to keep the main process stream, changing picking operations only in the workplace, which changes the processing of individual parts and assemblies.

Equal operations calculated per worker, are more convenient, as there are no complications in the transfer of goods to another work. 

Coordination of the operations of the flow by selecting and combining indivisible operations are subject to certain production requirements is not always possible to construct the operation in accordance with the conditions. However, some operations may be different for longer than permitted (-2...5%). Operations clarify:

use the most fast cars and the most effective ways of processing (the replacement machine 22-L CL machine CL. 97; replacement irons presses; replacement thread of the fastening parts of the adhesive; replacement of the buttonhole valves and tabs by saucegay pattern, etc.); 

by applying the most advanced special tools and devices (pads, switches, devices for screwing out of the straps, belts, etc.); 

improvement of the regime of the wet-heat treatment;

allocation of support activity elements (threading in the needle, the selection of products on offer, the appropriate placement of products in the cell on the previous operation, etc.) in the independent; 

the introduction of advanced methods of work and proper selection of workers.

All technologically indivisible operations related to the processing of main parts, Assembly and final finishing of products, called basic, and the machining operations on parts manufactured in parallel with the processing of key components,- parallel.

Approval of transactions flow in which processing details of the items are not highlighted in a separate section, should begin with basic operations, to use machining operations on small parts to ensure the best specialization works on the basic details and a more accurate implementation of conditions of approval. For example, the processing operations of shelves, you can add operations to the machining of pockets, leaf, podborov etc.

The process of picking transactions using the technology of the cards is as follows. Cards laid out on the table in sequence order of processing each part separately, and the parts are arranged in the same order as they are placed in the technological sequence of processing (Fig. 121). When the organizational operation is composed of atomic operations for processing two or more parts, it is desirable that the following operation was completed with the same details.Under this conditions the movement of items in the stream are accessed sequentially, which creates the conditions for a good organization of work of the entire thread.

After the establishment of the final version of the acquisition card transactions that are grouped into one organizational operation, fasten. 

Manning the organizational operations with the help of process cards is convenient because in a short time you can reach a large number of options of acquisition and by analysis to choose the best one. 

Results matching investment of time recorded in table (table. 20). 

Table 20: Agreement of time-consuming operations odnofaznogo flow 

Summing up all areas of operation flood (gr. 4) determine time (T) to the processing of the entire product. This time should equal total time spent for processing products according to the technological processing sequence, if the coordination of operations in time has not changed the treatment methods of the product.

In gr. 5 is determined by the number of workers depending on the time for the operation. If the time for the operation is equal to or almost equal to the Takt of the flow, for its implementation requires one working. If the operation time is about two times more tact, for its implementation requires two workers etc, the Actual number of workers in the stream (n f) is determined by summing the number of workers employed in all operations flow. 

Analysis approval time operations

When reconciling transactions flow it is necessary to consider that the basic agreement transactions, determined by the formula TP = (0,98 1,05...) CT that apply only to individual transactions flow, but not to the whole thread in General.

To verify approval time operations only number you need to determine the rate negotiation and schedule coordination, giving a visual representation of the deviation time of the organizational operations of the quantum flux. 

 Calculation of index of agreement. Index of agreement of the COP is determined by the formula KS = T/Nфт.

Coordination of the operations of the entire flow is considered correct if the index of agreement equal to one in the absence of abnormalities on individual transactions above the permissible. If the ratio is greater than one, then the thread has a large number of operations whose duration is greater than quantum; if the ratio is less than unity, then the thread has a lot of underused on-time operations.

When the deviation of the index of agreement from the unit by more than 1% previously set the flow of the beat specified. For this index of agreement conditionally accepted equal unit, and the flow of the beat is determined by the formula t = T/КсNф = T/n f. 

 Example. Processing men's winter coat style 1 - 21 requires 16327 s; the flow of the beat with 240, the number of workers 66. To determine whether proper coordination of the operations of the entire stream? 

Find the index of agreement KS = T/Nфт = 16327/(66 x 240) = 1,03. 

Consequently, the index of agreement greater than one of 3%.

Refine the flow of the beat, taking the index of agreement KC = 1: here a = T/Nфт = 16327/66 = 247с where - the flow of the beat after refinement. 

When changing the stroke, it is necessary to check whether each organizational operation condition of acquisition (with acceptable deviations - 2...5% of the main bars). Often the indicators for the whole flow improve. If the variances turn out more acceptable, a separate operations review and paraconductivity.

After clarification of the quantum flow, all further calculations are according to some measure, it is necessary to specify the flow rate Mut = TSM/t, where Mut - power flow after refinement.

 Schedule coordination time operations flow. Specification of tact flow allows in some cases to reduce the deviations of the transactions made with the concurrence of the operations on the initial beat, but sometimes the deviation time some operations increase.

To identify deviations from the quantum flow of time of certain operations make the schedule and coordinating the time of surgery (Fig. 122) . On the horizontal axis lay the sequence of operation numbers, profession, the amount of time and number of workers for operation. On the vertical axis delay time of all operations in the selected scale. Spend a horizontal straight line through the estimated time of flow (t = 240 - dotted line) and refined tact (here = 247 - solid line) and two lines corresponding to the permissible deviation ( - 2...5%) to the calculated and specified cycles).

Next, find the point corresponding to the time of operations. For multiple operations, delaying the average time consumption per one worker. Found connecting points with straight lines, get schedule approval time operations.

The points of the graph should not go beyond the horizontal lines with a permissible deviation of the adjusted measure. Deviations from the line of refined tact characterize the degree of loading of the working operations. If the actual deflection exceeds the allowable, it is necessary to take the most appropriate action to the time the spacecraft organizational operations were as close to the beat. 

Thus, the index of agreement and schedule and coordinating the time of operations reflect the accuracy of pick operations. 

 Diagram the sequence of operations flow (wiring chart). After filling in the technological scheme of the flow it is necessary to analyze its structure, why build a flow chart of the flow (Fig. 123). Operation flow this diagram shows the rectangles which contain the operation number and specialty. In the bottom row of the diagram place the operation of the main process, above this range, the process operation details. On the left side of the diagram shows the order of stacking parts in the cell of the conveyor.

Details to be processed in the last turn, indicated in the diagram at the top, but in the cell of the conveyor, they will be put first. Operation under which parts will be processed in batches, ka scheme is marked with a double frame. 

Lines showing the processing sequence of parts and place their receipt in the main process, will mow above the home row, numbers, detail where it begins processing in the main process. Below the main number of a line describing the movement of parts inside the main process.

If the result of the analysis conducted by constructing sequence diagrams operations, flow would be that flow has certain disadvantages, in that Assembly operations, and then in the scheme must make appropriate corrections. 

The diagram gives a visual representation of the sequence of movement of parts in the manufacturing process of the product and allows you to set the order of stacking parts in the cell of the conveyor run, in separate operations, and post jobs on the plan of the shop.