RU40243U1 - DEVICE FOR MARKING PLASTIC PRODUCTS - Google Patents

Abstract

The invention relates to the field of engineering, in particular automated mechanical marking of plastic products by fusing a coloring matter into the product. To improve the accuracy, quality and durability of marking, as well as reduce consumable consumables, it is proposed to use a dye that is similar in composition to the marked product. The composition of the coloring matter includes the following components: polyethylene, polypropylene, carbon monoxide (II) and a ferromagnet. The coloring matter is transferred by electromagnetic means to the surface of the stamp. The stamp is a removable snap-in equipment, selected depending on the content of the marking. The marking process is carried out instantly, immediately gives a dry impression that does not require any additional processing. The print is obtained as a result of the pressure of the stamp on the surface of the marked product and further heating of the stamp, as a result of which the coloring material is fused into the product. The durability of the marking is 20-25 years. The cost of consumables is 90 rubles. for drawing 2 million characters up to 3 mm high.

Description

Device for marking plastic products. The invention relates to the field of mechanical engineering, in particular automated marking of plastic products by melting a dye into the product.

A device [1] is known for marking products, comprising a housing installed in the housing shaft, stamps made in the form of one or more disk cutters, sequentially and coaxially mounted on the free end of the shaft with the ability to change the distance between them, by means of distance bushings, replacement or installation milling cutters of either different or the same thickness and diameter of the disks in different sequences. The end part of the drive shaft is made with the possibility of mounting on it an end mill or drill.

The disadvantage of this device is the removal of the material of the marked product, the inability to apply characters, the need for sharpening mills after a certain time.

A device [2] for printing, containing a paint carrier, a means for applying paint, a storage medium (paper, plastic, plastic film, etc.), a UV radiation source and a system of optical fibers and microlenses that transmit and focus the radiation of a controlled radiation source on paint.

The disadvantage of this device is the design complexity, due to the use of a UV radiation source and a system of optical fibers and microlenses for transferring ink to a storage medium.

The closest technical solution is a device for thermal embossing of plastic products [3], containing a bed, a support table with a working plate, a punch with heating elements, rigidly

a stamp fixed thereon and a feed mechanism for a transfer foil containing a dye, an electromechanical drive reciprocating the stamp.

The disadvantage of this device is the heating of heating elements to a working temperature before embossing a batch of products and maintaining the operating temperature during embossing, as well as the use of foil with a layer of a coloring substance, which complicates the design, leads to an increase in the cost of embossing and the appearance of waste in the form of used waste foil .

The invention is aimed at improving the accuracy, quality, durability, reducing the complexity and time required for marking, as well as reducing the expendable consumables, maintaining non-waste marking.

This is achieved through the use of a coloring powder, similar in composition to the marked product, consisting of components: polyethylene, polypropylene, carbon monoxide (II) and a ferromagnet.

The durability of the marking is 20-25 years. The cost of consumables is 90 rubles. for drawing 2 million characters up to 3 mm high.

Unlike the prototype, a cartridge for a coloring powder is introduced in the proposed device, consisting of a container and a magnetic shaft installed in it for withdrawing powder from the container; a shaft driven into rotation by an electric drive through a cylindrical gear transmission, with a punch with a stamp installed on it, a heating device and an electromechanical drive for reciprocating movement of the punch; stamp cleaning mechanism; an electric drive that rotates the magnetic shaft of the cartridge and the stamp cleaning mechanism; control devices for electric shaft drive and electric heating device. Shaft rotation is necessary for

positioning the stamp near the cartridge, the product being marked and the stamp cleaning mechanism. A stepper motor is used as an electric drive of the shaft, an inductor using high-frequency currents is used as an electric heating device, and a motor is used to rotate the stamp cleaning mechanism and the magnetic shaft of the cartridge — gearbox.

The proposed device is new because it differs from the prototype of the above features.

Analysis of the known technical solutions allows us to conclude that they lack features similar to the essential distinguishing features in the claimed device design and recognize the claimed solution as meeting the criterion of “significant differences”.

The essence of the design is illustrated in the drawing, where figure 1 shows a General view of the device; figure 2 is a section of a punch with a stamp and a heating element.

The main components of the device are (Fig. 1): a bed 1 on which the shaft posts 2, the cartridge rack 3 and the rack for installing the marked product 4 are installed. The shaft 5 is fitted with a shaft 5 on sliding bearings 6. The shaft 5 is rotated from the stepper motor 7 mounted on the right rack 2 through the gears 8 and 9. On the shaft 5 there are two guides 10 on which the punch 11 is mounted. Using the springs 12, the punch is pressed against the shaft. A cover 13 with a coil 14 is attached to the punch 11, which protrudes in the form of an electromagnet and an inductor winding. A stamp 15 is installed in the lid (FIG. 2), which is the core of the electromagnet and inductor. The punch has the ability to reciprocate along the guides under the influence of the electromechanical drive 16 and the rod 17. The supply and control voltages to electrical devices mounted on

the rotating shaft is fed through a brush mechanism 18 mounted on the left pillar 2. In the pillars 2 on the sliding bearings there is a stamp cleaning mechanism made in the form of a steel shaft with a paralon coating. On the rack of the cartridge 3, a cartridge 20 is installed, made in the form of a container and a magnetic shaft, designed to output the coloring powder from the container, and a gear motor, necessary for the rotation of the cleaning mechanism of the stamp 19 and the magnetic shaft of the cartridge 20 through the pulleys 22 and belts 23. Marking carried out the workpiece 24 mounted on the rack 4.

Installation works as follows. The stamp 15, installed through the intermediate elements on the shaft 5, under the action of a stepper motor 7, which drives the shaft 5 into rotation, moves to the magnetic shaft of the cartridge and is positioned near it. At this moment, a constant voltage is applied to the coil 14, which starts to work in the electromagnet mode and the required amount of the coloring powder is transferred by electromagnetic means to the stamp and held. The gear motor 21 drives the cleaning mechanism of the stamp 19 and the magnetic shaft of the cartridge 20 constantly. Then the stamp moves to the marked product and is positioned near it. At this moment, the electromechanical drive 16 is turned on, which transfers the force through the rod 17 to the punch 11. The punch moves along the guides 10 and presses the stamp 15 to the workpiece 24. The coil 14 switches to the heating element mode and instantly heats the stamp under the action of high-frequency currents. The coloring powder is fused to the workpiece. After fusion, the electromechanical drive is turned off and the stamp moves to the cleaning mechanism of the stamp 19. At this point, the workpiece 24 is changed. Under the action of the cleaning mechanism 19, the stamp is cleaned of residues of the coloring powder. At the time of cleaning, the coil 14 is still operating in the heating device mode. After cleaning, the coil 14 is turned off and the cycle starts again.

The application of the proposed design has the following advantages:

- marking of any plastic products is possible;

- symbols printed on the product will not wear out over the entire life of the product;

- it is possible to change the content of the inscriptions in the manufacturing process of products;

- high-quality marking;

- non-waste marking is carried out;

- low consumption of coloring powder;

-high marking speed.

Sources of information

1. Patent RU 2202464, cl. B 25 H7 / 00, 2001.

2. Patent RU 2000102208, cl.

3. Getsas S.I. Decorative processing of plastic products. - L., “Chemistry”, 1978. - 120 pp., 30 fig., 14 tab.

Claims (1)

A device for thermal embossing of plastic products, consisting of a bed, a support table with a working plate, a punch with heating elements, rigidly fixed to it by a stamp and a feed mechanism for a transfer foil containing a dye, an electromechanical drive that performs a reciprocating movement of the stamp, characterized in that as a coloring substance, a powder consisting of polyethylene, polypropylene, carbon monoxide (II) and a ferromagnet is used, in connection with which a cartridge consisting of and a container and a magnetic shaft that removes the coloring powder from the container for storing the coloring powder, a shaft with a gear and an electric drive with a punch, stamp, a heating device and an electromechanical drive mounted on it, a stamp cleaning mechanism, an electric drive that rotates the stamp cleaning mechanism and components cartridge, moreover, a stepper motor is used as an electric drive of the shaft, an inductor using high-frequency currents is used as an electric heating device, and as an electric drive , which rotates the stamp cleaning mechanism and cartridge assemblies, is a gear motor.