A way of marking cable products

 

(57) Abstract:

Use: manufacture of cable or other filamentary products. The inventive method of marking cable products is to make the product characteristics, which carry information. As these signs are used to change the thickness of the structural element of the product, periodically repeated along its length. Changes in the thickness of produce vipresume material of the structural element of the product or coil product tapes. 3 C. p. F.-ly, 10 ill.

The invention relates to the production of cable or other filamentary products, one of the elements (preferably outside) is made by winding a tape overlay on presses polymer, rubber, metal.

There are various ways of applying for wire and cable marking containing information about their margaritora, the manufacturer, the features of the technology and so on, you Can select drawing characters using paint.with. N 1686486), their creation by embossing on the hot shell. C. N 1654880), creating a convex characters on a hot shell with the use of vacuum.with. N 546941).

The transition from a planned supply kit is alnost identification of a particular product with its manufacturer. It is quite probable in the near future, the problem of protection of manufactured products from counterfeiting. This problem has economic terms, as the presenting complaint for a product manufactured by another manufacturer and provided with false labeling, causes economic damage to the company, whose marking is used illegally. To help in this situation can use the hidden marks that cannot be read without special tools or without confidential information. These methods do not meet this requirement, they create a visually distinguishable markings.

Known methods of marking cable products demand unavailability of information the consumer is responsible method [1] He is that the surface is coated with a magnetic coating, by using the magnetic head, it is recorded the required information (business and technological). Reading of information is carried out also by using the magnetic head. The disadvantage of this method considerable complexity and additional costs. Spent a magnetic material, is an additional process operation of the application, for recording information and for the automation of the Assembly process harnesses justifies the complexity and cost. To exclude same-counterfeiting products, it seems appropriate to use a more simple and cheap ways of the hidden marks.

This method is intended for supply of cable products, one of the elements (insulation, sheath) is manufactured by winding a tape or overlay material on presses, feature, allowing to determine that the product produced by this company.

The aim of the invention is the provision of unavailability incorporated in the labeling information outside observer, lower costs the manufacturer claims on the products of other manufacturers, equipped with fake visual marking.

As labels that identify the manufacturer, are used regularly repeated along the length of the product changes in the thickness of insulation (sheath) to the extent permitted by the design of the product. Change the thickness of insulation (sheath) is periodically recurring changes in the linear velocity of passage of the workpiece through the working node (extrusion head, wrapper) at the same production site or recurring changes in productivity, speed brasenia may be in the form of step (a distance along the length of the product) repeated changes of thickness, in view of the nature of changes in the thickness (only an increase of the background of some nominal value, only a reduction on the background of the nominal value, following each other immediately increase and decrease compared to some nominal value). The information included in the labeling, can be read by a simple measurement of the outer diameter along the length of the product. As reading the information device can be used for differential capacitive sensor, providing for inclusion in the shoulders electrical bridge two sections of insulation (sheath), located between the conductive housing (metal wire braided) and two electrodes covering the product and is able to independently move along the product. To one diagonal of the bridge connects the voltage of ultrasonic frequency in the other diagonal is included zero indicator. Moving one of the electrodes along the cable of the product, install it on one of the sites with the changed thickness, what is judged by the maximum reading of the null indicator. Then deleting the products along the second electrode, find the position of the neighboring area of modified thickness, what is judged by the minimum reading of the null indicator. Distance is an indoor method of marking and reading makes it difficult to counterfeit products. It can be used both independently and in combination with visually perceptible ways.

In Fig.1 presents a scheme of the proposed method when using changes in the linear velocity of passage of the billet through the extrusion head of Fig. 2, 5 and 8 shows three variants of the control rim of the traction wheel; Fig. 3, 6 and 9 corresponding time variation of the speed of passage of the billet through a die of the extruder of Fig.4, 7 and 10 due to these changes the rate of change in thickness along the length of the product, respectively.

To change the speed vo+ vdin the cylinder of the extruder at a constant velocity vothe traction device is used to change the length of the workpiece between its exit from the cooling bath (NACHA) and the reception of the workpiece on the traction wheel (CON) (Fig.1). In the middle of this area is a guide roller 1, the limiting position of the workpiece from above and are able to move about vertically. The movement of the roller forms an extension velocity vdthe blank in the head. A roller mounted on one end of the lever 2, axis 3 which is fixed. The position of the roller is determined by the profile Manager Abdurashid with him.

In Fig.2 shows the profile of the rim, providing within the duration of one sixth of the turnover time T traction wheels increase and decrease the linear speed of the workpiece in the die head of the extruder, the following directly one after the other. During the rest of the turnover of the traction wheel linear velocity remains constant and equal to vo.

A graph of speed is shown in Fig.3. In Fig.4 shows the change in the thickness of the insulation along the length of the products provided by rim Fig.2. Increments of L, is equal to the circumference of the traction wheel, there is a successive decrease and increase of the insulation thickness. In Fig.5 shows the profile of the rim, providing within five sixths of the period of rotation T of the traction wheels a constant linear speed of the workpiece in the head, somewhat smaller vabout. During the one-sixth share of the turnover wheel speed is increased (Fig.6). Plot (Fig.7) shows that in isolation are formed compression, repeated along the length of the product in increments equal to the circumference of the traction wheels. In Fig. 8 shows the profile of the rim, in which five-sixths of the period of rotation of the linear speed of the workpiece in the cylinder remains constant, and W is is reduced, the product section is formed with an increased thickness of insulation (Fig.10). Step sequence thickening along the length of the product is the same.

Mathematical analysis of this scheme showed that the greatest degree of constancy of the speed of each plot graphs of Fig.3, 6 and 9 is provided by movement of the roller according to the law

F(t) C tA(1) where 0.5 < A < 1,0; C coefficient determined desired value of the incremental speed of the workpiece.

In Fig.2, 5 and 6 shows the profiles of the rim defined by (1) for the duration of the working movement of the roller is equal to a sixth part of the period of rotation of the traction wheel (vo30 m/min, And 0,5077, C0,2246, the distance between the place of exit of the product from the bath and cooling the traction wheel 2 m). It is shown that within 90% of the length of the formation of the nominal thickness of the element, and within 90% of the length of the formation of modified thickness translational speed of the workpiece in the cylinder, and accordingly the thickness of the layer that is created does not change more than 1.5% incremental velocity vdconstituting 20% of the vabout.

The proposed method of marking is not possible to record three-dimensional information, in this sense, it is inferior to the known method. However, he snecial it is used with a visually discernible marking the amount of recorded data can be increased.

1. A WAY of MARKING CABLE PRODUCTS, which consists in giving the product characteristics, information-bearing, characterized in that the quality of these features is used to change the thickness of the structural element of the product, periodically repeated along its length, and the change of the thickness is carried vipresume material of the structural element of the product or coil products ribbons.

2. The method according to p. 1, characterized in that the information asked in the form of the magnitude of the step of repeating the thickness or in the form of changes in thickness.

3. The method according to p. 1, characterized in that the thickness provide in the process of manufacturing is periodic in time by changing the translational speed of the workpiece at a constant productivity press, or the speed of the wrapper.

4. The method according to p. 1, characterized in that the thickness provide in the process of manufacturing is periodic in time change the performance of the press or the speed of the wrapper at a constant translational speed of the workpiece.

 

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