SU1502491A1 - Apparatus for moulding glass objects - Google Patents

Abstract

The invention relates to the production of glass containers by press-blow and blow molding, in which the cooling of a glass-forming tool is performed by compressed air. The purpose of the invention is to improve device performance and reliability and improve working conditions. The device includes a frame with an air distribution box 1, a slab 2 closed at the top and with holes 3 and 4. On the plate 2, a fixed part of the inlet duct is attached coaxially with the holes 3 and 4. The second part of the supply channel is fixed on the swivel holders 11 and 12, which are made with the possibility of a curvilinear reciprocating movement relative to the fixed axis. The device has input channels 25 and 26 communicating with vertical channels 27 and 28, which, in turn, communicate with output channels 29 and 30 located at an angle of 80 ° to the vertical channels. 4 il.

Description

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On top of this is a slab 2 with optional fi 3 and 4. On slab 2, coaxially with openings 3 and A, the fixed part of the supply duct is fixed. The second part of the supply channel is fixed - on rotating holders 11 and 12, which are made with the possibility of a curvilinear reciprocating movement relative to a fixed axis. The device has input channels 25 and 26 communicating with vertical channels 27 and 28, which, in turn, communicate with output channels 29 and 30 located at an angle of 80 ° to the vertical channels. 4 il.

The invention relates to the building materials industry, namely the production of glass products by press-blower and blow molding methods using compressed refrigerant.

The purpose of the invention is to increase device performance and device reliability and improve working conditions.

Fig. 1 schematically shows a device for forming glass products; a vertical section with the mold closed in Fig. 2 is one of the sections, viewed from above; on fig.Z - section aa in figure 1} in figure 4 - node I in figure 1, the output radial channel.

The device includes a frame with an air-distribution box 1, a plate 2 closed from above with apertures - f 3 and 4. On the plate 2 coaxially with holes 3 and 4 is fixed a fixed part of the supply duct containing receiving bodies 5 and 6 with covers 7 and 8, which are made holes 9 and 10, respectively.

The second part of the inlet duct 5 is firmly fixed to the swivel holding e-x 11 and 12 (the turning mechanism Ie is shown), which have the possibility of a curvilinear reciprocating movement relative to the fixed axis, this part includes the nozzles 13 and 14, figured with flat gates 15 and 16, suction pipes 17 and 18, spacer links 19 and 20 and air distribution pipes 21 and 22. Pipe 13, connecting pipe 17, spacer 19 and air distribution pipe 21 are hermetically fastened between battle (exactly the same as parts 14, 18, 20 and 22). The holders 11 and 12 are fastened with rIOJ yfclms 23 and 24, I have a Si-linoo number of input radial channels 25 and 26, vertical15

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thirty

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channels 27 and 28 and output radial channels 29 and 30. The latter are made in the form of diffusers.

A device for forming glassware works as follows.

When closing the half-molds 23 and 24, when the holes 9 and 10 of the covers 7 and 8 are combined with the channels in the receiving pipes 13 and 14, the coolant flow (ventilation air) from the air distribution box 1 flows through the holes 3 and 4, the receiving bodies 5 and 6 and holes 9 and 10 into the feed channels. Next, the refrigerant flow passes through the pipes 13 and 14, connecting pipes 17 and 18, spacers 19 and 20 and enters the air distribution latches 21 and 22. Hence the flow of refrigerant through a large number of radial inlet channels 25 and 26 enters the vertical channels 27 and 28, passes them at a speed of 90 m / s, takes heat from the form and, turning 80, selects through the output radial channels 29 and 30 at a speed of 15 m / s. It spreads into the inside of the machine, mine details n are evil, located on the sec- ond section.

when the molds 23 and 24 are open (the material is transferred to the finishing form), flat un-t6epa 15 and 16 nozzles 13 and 14 overlap the openings 9 and 10 of lids 7 and 8 and the refrigerant flow does not go to the cooling of the half-molds 23 and 24.

The proposed design of the device due to the introduction of flat gate valves into it is characterized by simplicity, the absence of details of complex configuration and their movable positions, which does not create any difficulty in assembling the unit and its operation.

The location of the air distribution pipes around the form, on

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against the input channels made in it, greatly simplifies and facilitates the change of forms.

In addition, the simplicity of the design of the supply duct without abrupt changes in flow areas causes a slight hydraulic resistance in it, which allows the pressure of the refrigerant (air) created by the fan to be completely transformed into a velocity head in the area of its interaction with the form, i.e. . to provide high speed (about 90 m / s) in the inlet and vertical channels of the mold, which allows to obtain a high coefficient of heat transfer from the mold to the cooling system and to improve the performance of the device.

At the same time, rotation of the refrigerant flow at an angle of about 80 ° before it is emitted into the atmosphere and increases in the cross section of the outlet channels due to

their implementation in the form of diffusers reduces the flow rate of the refrigerant at its expiration (up to 12-15 m / s), which reduces the sound pressure in the service area of the machine. The noise reduction is also facilitated by the discharge of exhaust air into the inside of the machine, where its speed is reduced due to its deceleration during the flow of parts of the section. Thus, the use of a device for cooling glass

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Forms in glass-forming MaimiHax will allow to obtain an economic and technical effect - to increase machine productivity, to reduce the energy consumption of the mold equipment, and to improve the working conditions of the staff by reducing noise at workplaces, labor intensity during assembly and change of forms.

Claims (1)

Invention Formula A device for molding glass products, comprising a frame with an air-distribution box, a form with vertical channels, mounted in swivel holders, a co-supply air duct connected to the air-distribution box and nozzles located around the form and connected to the vertical channels of the form, tl that, in order to increase productivity and reliability and improve working conditions, diffusers are made at the base of the form, connected to its vertical channels, one hour s supply duct present fixedly secured to the frame, and the other - fixed on holders shapes and provided with flat vanes located under the base form. Phie.g 21 25 C AiA yy FIG.