JPS604619Y2 - Marking device for pipe materials - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device for marking characters, etc. on the outer circumferential surface of the pipe material by applying a stamped stencil to the outer circumferential surface of the pipe material, such as a steel pipe, and spraying paint. It is.

Generally, dimensions, standards,
Characters indicating the grade etc. are marked.

Conventionally, as a means for marking characters etc. on the outer circumferential surface of a pipe material, a marking device that brings the pipe material into contact with a rubber plate containing paint on a turning roller, or a marking device in which the pipe material is placed on a V-shaped pedestal and a printing screen is used. There is a marking device that applies a DC high voltage between the pedestals and adsorbs the powder scattered from the printing screen onto the outer peripheral surface of the pipe material.

In all of these cases, marking work must be done on the pipe material outside the pipe transport line, so
Equipment for importing and unloading pipe materials is required, and equipment costs and installation space, including the marking equipment, are large.

In particular, the latter marking device is expensive and complicated to handle, and the equipment cost and installation space are even greater than the former.

In order to solve the problems of the conventional apparatus, the present invention has a relatively simple structure and is capable of marking the pipe material on the pipe material conveyance line.

Embodiments of the present invention will be described below based on the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a conveyance line consisting of Vfg rollers that conveys the tube material 2 in the longitudinal direction,
A pedestal 4 having pillars 3 is installed above the conveyance line 1 .

A stopper 5 for abutting the end face of the tube material 2 to be marked is provided on the pillar 3 of the pedestal 4 via a position adjusting means 21 that is moved in the front and back direction by, for example, a threaded rod 21a.

A worm jack 6 for height adjustment is provided at the bottom of the pedestal 4.
A base frame 7 is provided horizontally with the base frame 7 interposed therebetween.

A frame 10 having rails 10a on both sides is horizontally provided at the bottom of the base frame 7 via a frame-pushing cylinder 8 and a guide rod 9.

A support 11 having wheels 11a is movably suspended on the rail 10a of the frame 10.

A paint sprayer 12 with a nozzle 12a facing downward is provided at the center of the rear end surface of the support 11.

Further, in the center of the upper surface of the support 11, a cylinder 13 for pressing down a stencil press roller is provided, which has a piston rod 13a extending downward through the support 11.

A stencil pressing roller 14 is provided at the end of the piston rod 13a of the cylinder 13.

A cylinder 15 for moving a paint sprayer is provided at the rear center of the frame 10, and the tip of a piston rod 15a of this cylinder 15 is connected to the paint sprayer 12.

In addition, a stencil mounting plate 16 is horizontally provided at the bottom of the frame 10 via a support rod 16a, and a stencil 17, which is a die-cut of desired characters, etc., is removably attached to the stencil mounting plate 16. It is provided.

18 is a paint fume exhaust duct provided below the conveyance line 1 so as to sufficiently cover the paint spraying range;
19 is a forward limit detector for detecting the forward limit of the paint sprayer 12, especially the support 11, by the paint sprayer moving cylinder 15; and 20 is a tube end detector for detecting the end of the tube 2 to be marked.

In addition to the forward limit detector 19 and the tube end detector 20, there are switching solenoid valves that operate each cylinder 8, 13, and 15, respectively, and a conveyance line after the tube 2 to be marked has been conveyed to the marking position. It is assumed that drive stop and drive start means, etc. for 1 are provided, and these are combined into an electrical automatic control sequence to carry out the operations described below.

As shown in FIG. 1, when the pipe material 2 to be marked is sent on the transport line 1 to the position of the stopper 5, the end of the pipe material 2 is detected by the detector 20, and the detection signal indicates that the pipe material 2 is being marked on the transport line 1. At the same time as stopping the drive of 1,
The cylinder 8 for pushing down the frame operates with a time constant of 1, thereby lowering the frame 10, and the stencil 17 is applied along the outer circumferential surface of the tube 2 as shown by the chain line in FIG.

Furthermore, the cylinder for pressing down the stencil presser roller 1
3 is activated to lower the stencil presser roller 14, and the stencil 17 is moved by the presser roller 1 as shown by the chain line in FIG.
4, it is brought into close contact with the outer circumferential surface of the tube material 2.

Compressed air is supplied into the paint sprayer 12 by a signal when the presser roller 14 contacts the outer peripheral surface of the tube material 2 via the stencil 17, and the paint is sprayed from the nozzle 12a of the paint sprayer 12, and the cylinder 15 for moving the paint sprayer is is actuated to advance paint sprayer 12, thereby causing tubing 2
The required markings are painted on.

When the paint sprayer 12 reaches its forward limit, the detector 19 is activated, and in response to the detection signal, the supply of compressed air to the paint sprayer 12 is stopped, and marking painting is completed.

Simultaneously with the completion of marking painting, the stencil presser roller presser cylinder 13 and the frame presser cylinder 8 operate in reverse, and the presser roller 14 and frame body 1
0 to its original position, and the paint sprayer moving cylinder 15 is reversely operated to retract the paint sprayer 12 to its original position.

The pipe material 2 coated with markings is then moved on the conveyance line 1 and sent to the next process.

As described above, the pipe marking device according to the present invention has a relatively simple structure, so it can be manufactured in a small size, light weight, and at low cost.Therefore, it can be easily installed at any position on the pipe material conveyance line, and it Marking can be painted, and there is no need for the complicated work and equipment required to carry the pipe material to be marked to the marking device outside the conveyance line and return it to the conveyance line, unlike in the past. It can contribute to improving efficiency and reducing equipment costs.

[Brief explanation of the drawing]

The drawings show an embodiment of the device of the present invention, in which FIG. 1 is a side view and FIG. 2 is a sectional view taken along the line A--A in FIG. 1. 1... Conveyance line, 2... Piping material, 3.
・・・・・・Pillar, 4・・・・Frame, 5・・・・・・
Stopper, 7...Base frame, 8...Cylinder for pushing down the frame, 9...Guide rod, 1
0...Frame body, 10a...Rail, 11
...Support, lla...Wheel, 12.
...Paint sprayer, 12a...Nozzle, 1
3... Stencil press roller press down cylinder, 14... Stencil press roller, 15
...Paint sprayer moving cylinder, 16...
...Stencil mounting plate.

Claims (1)

[Scope of utility model registration request] A stopper at the end of the pipe material to be marked is provided on the pedestal of a pedestal that is installed above the pipe material conveyance line so that its position can be adjusted, and a base frame is provided horizontally at the bottom of the pedestal so that its height can be adjusted. A frame body having rails on both sides is provided horizontally at the bottom of this base frame via a cylinder for pushing down the frame body and a guide rod, and a support body having wheels is movably horizontally mounted on the rails of this frame body. A paint sprayer with a nozzle facing downward is installed at the center of the rear end of the support, and a cylinder for pressing down a stencil presser roller is installed at the center of the upper surface of the support, with a piston rod passing through the support downward. A marking device for pipe material, comprising: a stencil pressing roller provided at the end of the piston rod of the cylinder; a cylinder for moving a paint sprayer provided at the rear center of the frame; and a stencil mounting plate horizontally provided at the bottom of the frame.