SU407589A1 - INSTALLATION FOR PAINTING PRODUCTS - Google Patents

Description

one

The invention relates to installations for painting products.

A known device for painting products comprises a chamber with a hole in the ceiling and a painting mechanism arranged inside the chamber, made in the form of a spray gun mounted for adjustment movement relative to the item being painted, and also a device for feeding the product into the chamber through an opening made in its wall.

However, this installation has low productivity and does not provide a sufficiently high quality of painting.

The purpose of the invention is to improve the performance and quality of paint.

This is achieved by the fact that the installation is equipped with a movable flexible drive door for closing the opening in the chamber wall and the opening in the ceiling mounted in rails placed on the wall of the chamber and the ceiling on both sides of the opening and opening as well . The device for feeding the product into the chamber is designed as two trolleys mounted in acutely angled, one relative to the other, interconnected by means of a coupling, one of which

carts are self-driven.

The door is flexible in the form of interconnected tubular elements and spacers arranged between them, mounted in guides rotatably relative to the tubular elements.

Guide carts are made in the form of rails.

FIG. 1 shows the proposed installation in the plan; in fig. 2 - the same, side view with a partial cut along the drive of the turntable and with a micro hydraulic filter; FIG. 3 shows a constructive embodiment of an element of a glazed door; in fig. 4 is the same, section along A-A in FIG. 3; in fig. 5 is the same, node I in FIG. 2; in fig. 6 is the same, the section along BB in FIG. five; in fig. 7 - scheme of the painting work.

A plant for painting high-sized (more than two meters) forge-pressing machines contains a chamber 1, in which a ventilation unit with a lower suction 2

a downward flow of air cleared from the inked aerosol after passing through the volume of the chamber in the hydraulic filter 3, a turntable 4 and two transport routes 5 brought to it at an acute angle are created.

The ventilation unit with its grate - bottom suction 2 through the underground channel adjoins the lower part of the hydraulic filter 3, and the axial fan - to the upper part of the hydraulic filter and the air discharge box outside the workshop limit.

Hydraulic filter 3 is a widely-used typical prefabricated rectangular cross-sectional structure inside which two or three water curtains are created by recirculating the pumping unit to trap paint particles from the air flow passing through the hydraulic filter from bottom to top.

For transporting forging machines with a height of more than 2 meters inside the chamber to the turntable on each of the tracks there is a transport device consisting of the product carrier of the non-drive trolley b and the drive trolley 7.

A trolley drive carries an electric motor driven by an explosion-proof drive mechanism (not shown), the output shaft of which ends in a coupling half 8. Through the coupling half, the torque from the drive mechanism can be transmitted by the coupling half 9 through an intermediate gear train (not shown) to the wheels of the non-driving trolley . To do this, simply move the trolley drive along the transport path by manually putting the coupling half in contact.

Such an embodiment of the transport device makes it possible to have a drive of forward movement with a power supply cable without a plug connector, the use of which is prohibited by the rules here, and at the same time it makes it possible to exclude the cable winding when the turntable 4 is in operation.

The turntable 4 with the drive 10 and a section of transport tracks on which the non-drive trolley can roll and fix is used to rotate the product relative to the workplace — the lifting platform 11.

The lifting platform has the ability to be adjusted in height and rotate about a vertical axis, which allows it to be approximated (or removed) from the turntable to the wall of chamber 1 (see Fig. 1 and 7). Adjustment of the platform 11 in height and rotation of the turntable 4 relative to the lifting area is necessary so that the small p, being on it, has access to practically any upper point of the product.

For the passage of carts with products at the time of transportation to the chamber, one of its walls has an opening closed by a lifting flexible glazed door 12. The door is of particular importance in organizing ventilation in the chamber volume: in any position (raised when it forms the ceiling of the chamber and lowered when, opening the ceiling, it closes the side opening, the cross-sectional area through which fresh air is drawn in,

remains constant. This ensures the constancy of the air flow rates in the chamber volume.

The door is a web assembled from horizontal tubular elements 13 and spacers 14 and 15. Spacers 15 can be rotated relative to horizontal tubular elements 13.

At the ends of the horizontal tubular elements there are pins on which rollers 16 are fixed on the ball bearings. The rollers serve to fix the door in the box section 17 guides, which are fastened in the chamber 1 on both sides of the side opening. The vertical part of the guides goes horizontally along a curvilinear section made along a certain radius, depending on the length of the struts 14 and 15. This makes it possible for the web to break when the door is raised and moved from the vertical to the horizontal.

On the rectangle formed by horizontal tubular elements 13 and spacers 14, a panel 18 with integrated glass 19 is rigidly fixed. The space on the rectangle formed by horizontal tubular elements and spacers 15 is covered with a special fabric 20. The fastening of the fabric to the elements 13 is hinged with clamps 21 .

To balance the weight of the door, it is connected through a system of blocks 22 and ropes 23 fixed to the lower part of the door with a counterweight 24. The latter can be moved while raising and lowering the door in the guides 25, constantly pulling the ropes, which facilitates the effort of lifting the door.

Instruments and materials used directly for surface preparation and painting operations (tippers and others) are stored inside the chamber (not shown).

For spray painting, the VISA-1 26 painting machine, operating on the principle of airless spraying, is included in the installation equipment kit. The device is a portable device (weight 20 kg) with an air motor connected to the pneumatic line of the shop by flexible hose 27. The working body of the device is a high-pressure hand-held spray gun 28, to which paint is supplied by the high-pressure hose 29 from the device 26.

The installation works as follows.

Products (forge and press machines) are mounted on non-driving trolleys 6 with a crane.

Moving the trolley drive 7 manually along the transport path 5 of the half coupling 8 and 9 is brought into contact, one of the carts with the product is rolled through the open opening onto the turntable 4 and fixed on it. The cart-drive is removed from the chamber, and the door 12 is lowered from a slight force of the arm to the lower position, closing the opening and forming a chamber closed on four sides.

After this, the small group conducts the first set of works of the technological process of painting the product assembly (surface preparation by washing, grinding, priming, straightening damaged areas). At the same time, he first processes the lower part of the product, then from the platform And processes the upper part, for which by remotely turning on the drive of the turntable 4 turns the product relative to the platform, thereby providing access to any upper point of it.

After the first set of operations of the technological process, the duration of which depends on the area of the treated surface and can vary due to the density of work (the number of simultaneously working males), the essence of the filled surface for an hour follows at a natural temperature. The bitch is made outside the chamber, for which the product together with the cart 6 is rolled out of it by the cart-drive 7, and the new one pre-installed with the help of crane means on the second drive cart, is described in the method, is introduced into the chamber to carry out the first set of technological operations, after which also sent to sup1ku. Now the first carriage with the product is sent to the chamber for the implementation of the second set of works of the process of painting the product as an assembly (grinding with a shlifmaschinka, removing dust with a vacuum cleaner and second flat filling with NTC-007 putty).

This is followed by drying out of the chamber of the first product with parallel holding of the second set of painting process operations with the second product inside the chamber. The painting cycle of the first forging and pressing machine is completed with the implementation of the third set of works (grinding, applying a coating layer, leveling with a putty, substance, enameling).

Due to the fact that the technological process of dyeing requires a threefold filling,

the products are alternately rolled out for drying, each time freeing up space in the chamber for the next set of operations of the adjacent product.

All work related to spray painting is performed by the worker using an airless spraying machine: the paint torch from the handgun of the machine is directed to the rotating product from the side of the platform 11 to the hydraulic filter 3. This eliminates contamination of the glass blocks of the chamber.

Subject invention

Claims (3)

1. An apparatus for painting products, comprising a chamber with a hole in the ceiling and an abbreviation mechanism arranged inside the chamber, made in the form of a sprayer mounted for adjustment movement relative to the item being painted, as well as a device for feeding the product into the chamber through an opening made in its wall so that, in order to increase productivity, color quality and improve service conditions, the chamber is equipped with a movable flexible drive door to close the opening in the wall and the opening in the ceiling mounted in guides mounted on the wall of the chamber and the ceiling on both sides of the opening and the hole, as well as the rotating circle placed in the chamber for mounting the product, and the device for feeding the product into the chamber is designed as guides located at an acute angle one relative to another of two carriages interconnected by means of a coupling, wherein one of the carriages is connected with a self-drive unit. 2. Installation according to claim 1, characterized in that the door is flexible in the form of interconnected tubular elements and spacers arranged between them, installed rotatably with respect to the tubular elements. 3. Installation under item 1, characterized in that the guide carriages are made in the form of rails, Srig. 1/77 Xx7 / XN4 // N // V4 7 4Vviy 4 V / yX x us.2 release /five FIG A Knot 24 B FIG. five Bb 24 FIG. 6 Air S X S AV / XV / AV i i M Phage. 7