RU219814U1 - Device for cutting the edges of products - Google Patents

Abstract

The utility model relates to devices for cutting and removing excess polystyrene foam, polyurethane foam, for cutting flat forms of polystyrene foam or other non-rigid building materials into parts of the required size with the formation of an end cut at the required angle, and can be used in hard-to-reach places during major repairs and construction of structures. The technical results are the simplification of the design both for manufacturing and when using a compact device for cutting the edges of products, as well as providing for the expansion of technical means for sawing blanks both in workshop conditions, at operating facilities, and in places with limited space, expanding the possibility of using sawing products from polystyrene foam and polyurethane foam at various angles. The device for cutting the edges of products made of foam plastic, polyurethane foam contains a body, a cutting tool fastening unit, a cutting tool. The body is made of a metal angle, four threaded studs are rigidly installed at the ends of the angle from the outer sides, two metal plates are mounted on the free ends of the studs and fixed with nuts, stationery knives are fixed between the plates with screws and nuts at an angle to the plates, providing the formation of a wedge-shaped bevel. 2 ill.

Description

The utility model relates to devices for cutting and removing excess polystyrene foam, polyurethane foam, for cutting flat forms of polystyrene foam or other non-rigid building materials into parts of the required size with the formation of an end cut at the required angle, and can be used in hard-to-reach places during major repairs and construction of structures.

At the moment, there are no compact universal products for an even cut of the edges of products, excess mounting foam, as well as for an even cut (cut) to the required dimensions of foam and other non-rigid building materials, which increases the time during work.

Known thermal cutter for cutting polyurethane foam with the function of heating the knife, powered by 220 V, created on the basis of modern materials and technologies, containing a body, a knife mount and a knife. The device works by heating the knife, which heats up for 15 seconds. Wedge temperature reaches 300°C

(https://kazan.vseinstrumenti.ru/product/nabor-dlya-termorezki-penoplasta-i-plastika-stayer-thermo-cut-150-vt-2-nozha-45255-h2-981521/).

The disadvantage of this device is that the device operates from a 220 V network, it is not possible to make an even cut of 90 °, change the cut angle, the knives become flexible when heated, the high cost of the device itself, the high cost of repairing this device, and due to its large dimensions in places with limited space, it is difficult to operate this device.

The closest is an electrical appliance for cutting foam, plastic, containing a body, a cutting tool mount, a cutting tool -naborom-nasadok-3-sht.html?specification). It is used for layout and decoration, artistic creativity and design work, allows you to create various shapes from foam and thin plastic, carves foam and polyurethane foam by heating the string. The heating of the string is carried out in 10 seconds. Operating temperature 520°C.

The disadvantages of this device are the design complexity in manufacturing, a narrow scope due to the inability to make an even cut at an angle of 90° or a cut of the product with a simultaneous cut along the end of the product at an angle of 45°, as well as the inability to cut in corners and hard-to-reach places.

The technical results are the simplification of the design both for manufacturing and when using a compact device for cutting the edges of products, as well as providing for the expansion of technical means for sawing blanks both in workshop conditions, at operating facilities, and in places with limited space, expanding the possibility of using sawing products from polystyrene foam and polyurethane foam at various angles.

Technical results are achieved by a device for cutting the edges of products made of foam or polyurethane foam, containing a body with a cutting tool attached to it.

What is new is that the body is made of a metal angle, four threaded studs are rigidly installed at the ends of the angle on the outer sides, two metal plates are mounted on the free ends of the studs and fixed with nuts, and the cutting tool consists of stationery knives fixed between the plates with screws and nuts at an angle to the plates, providing the formation of a wedge-shaped bevel.

In FIG. 1 shows a general view of a device for cutting polystyrene or polyurethane foam, foam rubber and other non-rigid building materials.

In FIG. 2 shows a side view.

The essence of the proposal is as follows.

The device for cutting the edges of products contains a housing 1 (Fig. 1, 2) with a cutting tool fixed in it. Case 1 is made of a metal corner, for example, 25×25×4 mm in size, 3-5 mm thick, 130 mm long. Four studs 2 with M6×60 thread, 70-80 mm long, are rigidly installed at the ends of the angle from the outer sides, for example, by a welded joint. Nuts are screwed onto the free ends of the studs (shown conditionally in the figure) at a level of 20-30 mm, on which two metal plates 3 (Fig. 1) 2-3 mm thick and 25 mm wide are mounted. Metal plates are installed (attached) on studs 2 parallel to the outer sides of the corner. Stationery knives 4 (Fig. 1, 2) are installed and fixed between the plates 3 with M4 screws 5 (Fig. 1) and nuts (not shown in the figure) so that the ends of the cutting knives come into contact with each other at an angle, for example 120 ° relative to the plates 3. Knives 4 are brought together at their free ends to cut the product at different angles, thereby forming a wedge-shaped bevel. Bearings 6 (Fig. 1, 2) 6×17×6 mm can be installed on the studs 2 over the plates 3, providing stop and smooth sliding of the device over the surface of the cutting product. Metal plates 3 and bearings are fixed with nuts M6 7 (Fig. 1, 2) on the top of the studs.

The utility model is simple in manufacture and operation, has small compact dimensions, providing the possibility of sawing products made of foam and polyurethane foam, placed permanently, and in places with limited space, as well as for removing excess foam from inner corners and outer corners.

The device works as follows.

Depending on obtaining the required end angle and the thickness of the product being cut (cut), the height of the knives 4 is adjusted by raising or lowering the plates 3, moving along the studs 2 and nuts 7, as well as adjusting the angle of inclination of the knives 4. Install the device from above on the surface of the product that is planned cut (cut). The device is taken in the hand by the body 1 and pressed against the cutting surface by bearings 6. Depending on the thickness of the cut product, the device can be supported by bearings both on one side and with bearings on both sides. Next, you need to pull the device by the body 1 towards you with a horizontal cut. With a vertical cut, the device stretches both from top to bottom and from bottom to top, simultaneously forming an end cut from both sides.

The utility model has a simple design, is easy both for manufacturing and for using a compact device in work when cutting the edges of products, and also provides for the expansion of technical means for sawing blanks both in workshop conditions, at existing facilities, and in places with limited space, provides an extension of the possibility of using for cutting products made of foam and polyurethane foam at angles of 45 ° and 90 °.

Claims (1)

A device for cutting the edges of products made of foam plastic or polyurethane foam, containing a body with a cutting tool fixed on it, characterized in that the body is made of a metal corner, four threaded studs are rigidly installed at the ends of the corner from the outer sides, two threaded studs are mounted on the free ends of the studs metal plates and fixed with nuts, and the cutting tool consists of stationery knives fixed between the plates with screws and nuts at an angle to the plates, providing the formation of a wedge-shaped bevel.