Sealing mechanism by screwing

Contents

Introduction

Quiet Drinks Closure Equipment Analysis

ROSPRODMASHSERVICE (Russia) closure machines

AROL closure machines (Italy)

Enoberg Closure Equipment (Italy)

Alcor-Trading (Russia) closing machines

Automatic machine corking PE screw cap of A3-VAU.

1.5. Mirelli Closure Equipment (Russia)

Description of the machine

Principle of operation

Kinematic diagram

Design

Drive Design

Shaft calculation

Spring Design

Conclusions

List of used literature

Selection and justification of the source procurement type and method of procurement

Compliance with a number of requirements of the AETPP and industry standards is a prerequisite for ensuring the workability of the part in mechanical manufacturing:

- creation of parts of such structural shapes that allow to apply more efficient methods of machining and use of high-performance equipment;

- provision of cutting tool cutting and exit conditions, as well as good access and control of part surfaces;

- simplification of design of parts and assemblies as much as possible;

- use of rational procurement;

- Widespread use of the principles of harmonization;

- technically justified establishment of accuracy and roughness of machined surfaces, etc.

The selection of the procurement method is influenced by:

The material of the workpiece

assigning a part

surface shape and part dimensions.

The method of obtaining the workpiece, which ensures the processability of the part at a minimum cost and the largest KIM, is considered optimal.

The optimal method of obtaining the workpiece is determined based on a comprehensive analysis of the above factors. As a blank, it is advisable to select a rod, since the diameter of the internal hole is less than 20 mm, and the maximum difference in degrees of external diameters is 2 mm per side.

We select the rod of ordinary accuracy, Rz = 160 mm, h = 250 mm.

Selection and justification of stages of manufacturing process, process bases, methods and sequence of part surfaces processing

In accordance with the accepted treatment plans of the main surfaces of the sleeve, it is necessary to pre-organize the technological transitions of the treatment of individual surfaces, grouping them into process stages. At the same time, in order to avoid the so-called "accurate skew," the difference in the accuracy of different surfaces within one stage should not exceed 3-4 qualitets (at the final stages of one-two qualitets). The distribution of process transitions to process steps is shown in the preliminary processing plan.

The initial data for the development of the routing process are:

part sketch (Fig.1.1) with numbering of main surfaces;

detail material: steel 14X17H2;

workpiece: rod;

operating conditions: high contact stresses and torque at long-term load;

production type: serial;

The requirements for the part and its material determine the type of chemical-thermal treatment: cementation with subsequent hardening and release.

The specified accuracy characteristics of the dimensions, shape, and surface quality allow you to determine the required number and types of machining steps. In this case, it is necessary to achieve the accuracy of the forming surfaces according to the 7m, 9th and 11th accuracy, roughness Ra1.25 and Ra2.5 μm. Based on the above data, we choose the following processing steps: rough, semi-finished, finished and final.

Sequence of process steps:

Draft stage: trimming endcaps, turning the outer surface, thinning holes.

Heat treatment: tempering and tempering.

Reroute stage: trimming the ends, turning the outer surface, thinning the holes, turning the grooves.

Finishing stage: preliminary grinding of the inner surface, grinding of the outer surface and the end, drilling of holes.

Finishing stage: final grinding of the inner surface.

The selection of bases predefines some preliminary solutions related to the surface machining sequence. However, the connection of transitions in the operation does not yet fully determine the order of surface processing, since no sequence of operations is established within each stage.

The most significant influence on the sequence of processing and the nature of dimensional connections between surfaces. This is reflected in the principles of combining bases and the constancy (unity) of bases, the observance of which ensures the formation of the shortest dimensional chains.

Thus, it is advisable to start the rough step by machining the front end using the support end and the outer surface as the rough bases. In this case, only one dimension is placed from the black base.

The reroute step should also be assigned with the final processing of the front end, since the largest number of design dimensions are placed from it. The process flow is reflected in the process plan.

Development and justification of preliminary plan of part manufacturing process

Further ordering of process transitions requires as a combination into operations within each stage of the process. Transitions are grouped according to the commonality of the applied technological methods taking into account the possibility of surface treatment from a common set of technological bases.

An analysis of the part configuration shows that the main technological bases during its processing can be:

Front end 8: - as a support base, depriving the billet of one degree of freedom.

End 3 - as a support base, depriving the billet of one degree of freedom.

Outer surface 1 - as a double guide base, taking away four degrees of freedom from the blank.

An outer surface 9 having a small length as a double support base depriving the workpiece of two degrees of freedom.

Therefore, the following sets of bases can be used to fully orient the workpiece:

Front end 3 and outer surface 1 are used for treatment of outer surface, 10, inner faces 11, 14, and support face 8 and 7.

Support end 8 and surface 10 are used for treatment of front end 3, external surfaces 1, 15, 16.

The inner surface 11 is for cutting and grinding the teeth and for finally grinding the surface 10.

Thus, the draft and reroute stages should include three lathes, one of which uses a set of bases (1), the other - a set of bases (2).

Pricing and Unit Cost

The cost of production is the cost of the enterprise for its production and sale, expressed in monetary form. Distinguish between planned and actual costs.

The planned cost of production includes only those costs that are necessary for the enterprise under this level of technology and organization of production. They are calculated on the basis of the planned standards for the use of equipment, labor costs, and material consumption.

The reported cost is determined by the actual production costs.

Cost is the largest value in the price structure, the change of which in one direction or another leads to an increase or decrease in the absolute value of profit.

By the amount of costs taken into account, we distinguish:

- shop cost;

- production cost (cost of finished products);

- full cost of goods sold (shipped).

Price - the amount of money in exchange for which the seller is ready to transfer (sell), and the buyer agrees to receive (buy) a unit of goods. In fact, the price is the coefficient of exchange of a particular product for money. The value of the relations during the exchange of goods determines their value. Therefore, the price is the value of a unit of goods expressed in money, or the monetary value of a unit of goods, or the monetary value.

The cost and price are calculated for the plunger, which is an integral part of the assembly unit - the closure cartridge. All process parameters for manufacturing this part were previously calculated in the process part.