SU551182A1 - Welding machine for two-sided welding of sheet materials - Google Patents

Description

one

The invention relates to the processing of plastics and is intended for welding of sheet and thermoplastic sheet materials.

A known welding machine for two-sided welding of thermoplastics, comprising a housing, devices for two-sided heating and subsequent heating, depositing of the product, and a welding head with a heating gas heater 1.

The disadvantages of the well-known welding machine (1Y should be attributed to its stationary use of some, which limits the ability to weld products of a certain size and size.

Also known is a welding machine for two-sided welding of sheet materials, consisting of a body on which a drawing mechanism, a welding and cooling device, and a drive for moving the machine 2} are mounted. However, in such a welding machine, the non-laying of the panels is done manually, which is why it is impossible to ensure complete alignment of the edges of the jointed-x-yarn sheets.

The aim of the invention is to improve the welding quality by ensuring accurate alignment of the edges of the joining-pieces.

This is achieved by the fact that the welding machine is equipped with a guide device, made in the form of two pairs of tshastic, arranged one above the other, and forming a slot for the passage of material and rigidly connected with the plates of the rollers, the upper pair of which is mounted on spring-loaded arms attached to the body, and the lower steam corner is on the levers rigidly mounted on the case, with the attachment points of the levers of each pair of rollers mounted to the opposite sides of the case.

FIG. 1 depicts the described welding machine; in fig. 2 - the same, top view.

Claims (2)

The welding machine contains a guide device, made in the form of two plates 1 and 2, arranged one above the other, forming a slot for the passage of material and rollers 36 rigidly connected with the plates. The upper pair of rollers 3 and 4 is mounted on levers 8 and 9 that are spring-loaded on the body 7 and the lower pair of rollers 5 and 6 are mounted on the arms ax 10 and 11 and rigidly fixed to the body 7. Me-hrynem mounted on cross-arms 12 and 13, mounted on the housing 7, consists of spring rollers 14-17 and with their water rotating 18, the Machine also contains a welding device installed in the traverses into the cooling device, including distribution boxes 19.20, calorite}) ep 2 and compressor 22, and steering wheels 23. one of which is connected to the drive of the rollers 18. The attachment points of the levers 8-11 each pair of rollers 3-6 are shifted to opposite sides of the housing 7. The welding machine works in the following manner. Sheets 24 and 25 of the material to be welded are spread out in parallel on a site with a solid coating. The welding machine is brought to the place where the seam is located. The sheets of material are fixed separately from two sides in the slits of the plates 1 and 2 of the guide device, stretched between the rollers 3-6, the distribution boxes 19 and 2O of the welding and cooling device. Moreover, when material sheets are pulled through the slits of plates 1 and 2, the forces of friction of the material against the surface of plates 1 and 2 tend to turn rollers 3 and 4 about the vertical axis towards the material LH5B material, which causes the slits of plates 1 and 2 to move to the stop the edge of the slots, while the rollers 3 and 4 are in a neutral position and the movement of the sheets of material is stopped. When the drive 18 is turned on, the welding gear moves along the welded LyO 11 23 stock material 24 and 25, which are pulled by the rollers 14-17 of the stretching mechanism one above the other with overlapping to form an overlapping crevice through the distribution, welding and cooling boxes 19 and 20 devices and welds. The invention The welding machine for two-sided welding of sheet materials, comprising a housing, a pulling mechanism, a welding and cooling device and an actuator, characterized in that, in order to improve the quality of welding by ensuring accurate alignment of the edges of the joining blades, it is provided with guides a device made in the form of two pairs of plates arranged one above the other and forming a slot for the passage of material, and rollers rigidly connected to the plates, the upper pair of which is mounted on spring-loaded hinges levers fixed on the housing and the lower pair - for arms, rigidly attached to the housing, the attachment locations levers of each pair of rollers are offset to opposite sides of the housing. Sources of information taken into account in the examination: 1. USSR Author's Certificate No. 244598, M. Class. B 29 C 27/02, 1968. 2. Trost nska, E. B., et al. Welding of plastics, M., Mechanical Engineering, 1967, p. 121-122 (prototype). .2