SU926073A1 - Apparatus for enameling bathtubes - Google Patents

Description

(5) DEVICE FOR ENAMATING BATHTUBS

one

This invention relates to the enamelling of sanitary articles, for example bathing baths.

A device for applying an enamel coating on the inner surface and the outer bead baths is known, comprising a frame that is installed with the possibility of inclination on k relative to the horizontal in the direction of the dusting mechanism. The frame has a drive support mechanism. The drive is made in the form of an electric motor, the shaft of which is connected through the coupling with the drive shaft, which provides the rotation of the movable body of the support mechanism. In the movable case, intermediate and output shafts are installed. The output shaft is installed parallel to the drive shaft, but is located stepwise relative to it. A plate with a stand for mounting the bath is attached to the output shaft. From the drive shaft through the intermediate shaft using a combination of gear pairs provides rotation of the movable body, as well as the output shaft (bath), while the bath rotates in the opposite pro-c. Intermediate casing direction. The gear ratio of the gears is selected so that the rotational speed of the bath is half the rotational speed of the movable body. The device is equipped with a dusting mechanism in the form of vibrating screens, the operation of which is controlled by two cams mounted on the drive.

The device works as follows.

The bath is mounted on a stand that is in a horizontal position. Then the frame with the support mechanism (and the bath, respectively) tilts by 45 in the direction of the dusting mechanism. The vibrator is actuated and at the same time a feeder starts working, feeding the powder to the sieve. At this point, the engine starts, together with a double rotation bath. During this movement and because two rotations occur in opposite directions, with one movement at half the speed of the other rotational movement, a fixed point in the bath space describes an ellipse. Due to such a complex movement, various parts of the bath surface pass under a dusting device at a more uniform speed {the closer the ellipse is to the circle, the more uniform the movement is. The spraying cycle is, on the one hand, from one turn in one direction for about half the time spraying, and on the other hand, from turning in the other direction during the rest of the spraying time. The operation showed that good results are achieved by spraying for four turns in one direction.

Scientific research institute and four turns in other direction, all these operations take about two minutes. The reversal of the direction of rotation is accomplished by reversing the phases of the engine l.

In the known device, the output shaft of the drive support mechanism is stepped with respect to the drive shaft and rotates in the opposite direction. It should be taken into account that the bath weighs 100 kg and is installed on the stand console on the output shaft. During operation, the entire structure is inclined by k relative to the horizontal. With such a design, significant bending moments arise that affect the reliability of the device, causing cases from the Cossacks in the operation of the bearing assemblies and gears. The reliability of the device is also adversely affected by frequent engine switches. The disadvantages of the device also include the inability to obtain a uniform rotational speed of all parts of the bath surface, which degrades the quality of the enamel coating, makes it difficult to automate the work, all this also affects the reliability of operation. Rotation of the bath in opposite directions with different speeds allows to obtain more uniform rotation speeds for different parts of the bath, smoothing speeds, 92

The purpose of the invention is to increase the reliability of the device.

Claims (3)

The goal is achieved by the fact that a device for enameling baths, containing a mechanism for applying enamel, a frame with a driving support mechanism, installed with the possibility of inclination relative to the horizontal axis, is equipped with 34 but they still remain not the same (plan speeds in the form of an ellipse, not a circle Uniform rotation speeds can be obtained if the rotation radius for different parts of the bath surface remains constant. For the device, if necessary, applying an enamel coat (for various types of products. For the PV-1 bath, which has a length of 1700 mm and a width of 750 mm, the rotation speed in the opposite direction should be about 2.3 times less. 1, having a length of 1200 mm with a width of 700 mm, the speed should be 1.7 times less. The speed of rotation in the specified device Depends on the set of gears, this set is constant and cannot be changed (the intermediate shaft is fixed in the supports) - this is why there is no changeover opportunity. guides mounted on the frame, and the support mechanism is made in the form of a trolley mounted for movement along the guides, while the trolley is equipped with a vertical axle mounted in the support on which the plate with the bath stand is mounted, and the hopper wheel is fixed on the plate, configured to interact with a pinwheel. In addition, the device is equipped with a shaft mounted in supports on the frame, with a pinion sprocket attached to the shaft, a bevel gear for connecting to the drive at the lower end of the shaft, and a roller at the upper end. The plate is provided with a copying groove-shaped guide, made along the contour of the pinwheel and installed with the possibility of interaction with the roller. In Fig.1 shows the proposed device, front view (dusting mechanism not shown); Figure 2 is the same, top view (with a thin line showing a trolley with a bath for 1 moment noBcipoTa) S in FIG. 3 - section A-A in FIG. 2 1, shows the device in working position in thin lines); in fig. - section bb in fig, 2; Fig. 5 shows a section B-B in Fig. 2; the device consists of a metal structure 1, on which two bearing supports 2 with axles 3 and k are fixed. On the latter, the frame 5 is rotatably suspended. The rotation is carried out through the lever .6 fixed on the k axis, by means of an actuator, for example, in the form of a pneumatic cylinder 7, for which a fork 8 is fixed on the rod, the pneumatic cylinder 7 is fastened through the eye 9 to the metal structures 1, Two guides 10 are fixed on the frame 5, With the possibility of moving along the guides 10 on rollers 11 installed trolley 12, At the last closing The bearing support 13 for the vertical axis, on which the sleeve with the plate 16 is fastened with the help of the screw connection 15, is heated, the stand 17 for mounting the bath 18 is mounted on the upper plate of the plate 16, and the pinion wheel 19 is attached to the bottom plane, as well as a coping guide 20 of a grooved shape made along the contour of the wheel 19. A bearing bearing 21 for the shaft 22 is fixed on the frame 5, a spindle wheel 23 is installed at one end of which is capable of interacting with the wheel 19 and also the roller 2 with The interaction with the guide 20, at the other end of the shaft 22 is fixed to a bevel gear 25, which is engaged with the bevel gear gear 26, the latter is fixed to the shaft 27. mounted in supports 2 which are attached to the frame 5, at the other end of the shaft 27, an asterisk is fixed, 29 which is linked to the drive through chain transmission 30. The drive is made, for example, in the form of an electric motor 31, a brake 32 and a gearbox 33. The drive sprocket Z is fixed to the output shaft of the gearbox 33 is mounted coaxially with the axis. on the sieve from buicker 36 through the flexible hose 37 through the distributor 38, since the enamel comes from the hopper 36 in the form of powder, the device is equipped with an exhaust umbrella 39. equipped with a filter that retains dust. The device operates as follows. In the initial position, the frame 5 of the drive support mechanism (respectively, the plate 16 with the stand 17) is in a horizontal position and the bath 18 is installed on the stand 17. Then the pneumatic cylinder 7 is activated, which through the lever 6 fixed on the k axis , provides the frame 5 tilting (respectively, the bath 18) at an angle of approximately 5 in the direction of the dusting mechanism 35. The electric motor 31 is actuated. It provides the rotation of the bath 18, as well as the vibrator of the mechanism 35 and simultaneously with m begins to operate the feeder (supply) (powder from hopper 36 through hose 37 through distributor 38 to a sieve. Electric motor 31 through rotation gear 33 provides rotation of sprocket 3, and through chain transmission 30 and sprocket 29 rotation of shaft 27 and gear 26 is ensured, which, through the wheel 25, rotates the shaft 22 and, accordingly, the pinwheel 23., which transmits the rotation of the pinwheel 19 When the wheel 19 rotates, the stand 17 rotates with the attached bath 18 relative to the dusting mechanism 35- Anne 18 is a vertical axis I attached to the trolley 12, and as the bath 18 rotates, the center of rotation shifts continuously (one of the torques in FIG. 2 is shown by thin lines due to the movement of the carriage 12 on the rollers 11 along the guides 10, Due to the inclined position of the bath 18 at the time of dusting, the pinion wheel 19 could be pressed against the sprocket 23 with considerable force, since the carriage 12 with the installed bath 18 weighs 180 kg, which would impede the operation of the pinch gear. This is eliminated by ensuring that the copier rail 20 interacts with the roller 2, the Guide 20 is designed in such a way that a guaranteed clearance is maintained between the sprocket 23 and the wheel 1. The spray cycle continues 1 m. During the spray period, the air at the workplace is cleaned due to 39, equipped with a filter that retains dust. After the spraying is over, the feeder is turned off, feeding powder from the ST hopper to the dusting vibrator 35 and also the electrode of the bath turn actuator 31 31 Then the pneumatic cylinder 7 is activated and through the lever 6 rotates the frame 5 (respectively, the bath I8j to a horizontal position. Bath 18 is removed from the stand 17, the next burned primed bath is placed on the stand and the cycle is repeated. 3 This device, when the bath is rotated in an inclined position, is not affected by bending moment - The forces are perceived through the trolley 12, the guides 10, and also through the copier guide 20 roller 2k, when the device is operated, there is no need for reversing the gigantic device 31. All of this increases the reliability of the device. the ability of all parts of the bath 18 to rotate relative to the dusting mechanism 35 at an even speed. This is achieved by rotating the bath 18 from the pinching gear, and the swivel wheel 19 is EHO on contour py bath 18, wherein at least the rotational center of rotation is displaced due to the movement of carriage 12 along the rails 10. The proposed device making it possible to Perrin ki if necessary applying an enamel coating on various kinds of articles. To do this, it is enough to REMOVE plate 16 and on the axis C with the help of the bolted joint 15 install another Plate, on which there is a stand in the shape of the new product and corresponding to this product the pinwheel 19 and the copier guide 20. Claim 1. The enamel bath, comprising a mechanism for applying enamel, a frame with a driving support mechanism, mounted with the possibility of tilting about a horizontal axis, characterized in that, in order to increase the reliability of operation, it is provided with guides, curved on the frame, and the support mechanism is designed as a trolley mounted for movement along rails, while the trolley is equipped with a vertical axis mounted on the support, on which a plate with a bath stand is mounted, and on the plate there is a speed wheel mounted on the bath and interoperable with a star sprocket. 2. The device according to claim 1, wherein it is provided with a shaft mounted in supports on the frame, with a pinwheel mounted on the shaft, a bevel gear for connecting the drive to the lower end of the shaft, and on the top - the video. 3. The device according to paragraphs. 1 and 2, characterized in that the plate is provided with a yellow-shaped copier guide, formed along the contour of the sprocket wheel and mounted with the possibility of interaction with the rider. Sources of information taken into account in the examination 1. USSR author's certificate If 1202899, cl. From 23 D 11/00, 1970. BUT I (fvff I -; E Lt 6-B 18 P Phage.