JPH01168373A - Identification mark coating device - Google Patents

Abstract

PURPOSE:To prevent paint running and clogging and thereby permit a sharp line to be easily formed constantly by providing a freely closing needle on a nozzle which ejects a coating liquid to a transfer roll. CONSTITUTION:A device which applies a line to a member consists of a freely penetrating needle into the interior of a nozzle 32a which ejects a coating liquid, for the operation of an orifice at the tip of the nozzle. In addition, a transfer roll 33 transfers the coating liquid to a member by rotation of the peripheral surface of the roller in the vicinity of the nozzle tip. As a result, the liquid drip and clogging are prevented and subsequently, a sharp line is always formed easily.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for applying and forming lines on tire treads or other members.

[Sub] An example has already been proposed in which paint poured out from a nozzle is applied to a member by using the outer peripheral surface of the roll, and an example of this is shown in FIG. explain.

01 is a paint roll, and a cover 02 rotatably supports the paint roll 01 so that a part of the lower part of the paint roll 01 is exposed and the remaining part is covered.

The cover 02 is supported by a support arm 04 extending from a column 03.

A nozzle 05 is formed above the paint roll 01 in the cover 02, and the tip of a bow 07 extending from a paint tank 06 is fitted into the nozzle 05.

Note that the hose 07 is provided with a manual cock 08 in the middle.

Paint roll 0 on top of horizontally moving rubber extrusion 09
1, the paint roll 01 rotates on the rubber extrudate 09.

Then operate cock 08 to open the paint tank 0.
The paint in 6 passes through a hose 07 and is poured out onto the upper outer peripheral surface of the paint roll 01 from a nozzle 05 provided on the upper part of the cover 02.

Therefore, the paint poured onto the outer circumferential surface of the paint roll 01 is carried about half a circumference as the paint roll 01 rotates and is transferred to the rubber extrudate 09.

A line is applied on the rubber extrudate 09 with the width of the paint poured on the outer peripheral surface of the paint roll 01.

“I’m talking.”

However, if the tip opening area of nozzle 05 is wide, cock 08
Even after tightening, the liquid will leak, and when stopped, it will prevent the formation of a clean line.On the other hand, if the opening area of the tip is narrow, although dripping can be prevented, it will be difficult to pour out the appropriate amount of paint. Therefore, it is not possible to form a uniform line.

It is difficult to determine the opening area of the nozzle tip so that the appropriate amount of paint can be poured out at all times and no drips occur despite fluctuations in temperature, humidity, etc.

Moreover, since the tip of the nozzle is always open, the paint is exposed to the atmosphere, which has the disadvantage of easily solidifying and clogging.

The above discussion and discussion have been made in view of this point, and the purpose is to develop a marker coating device that can dispense a suitable amount of coating liquid from a nozzle and completely prevent dripping. It is in the point of providing.

That is, the present invention provides an apparatus for applying a line to a member, including a nozzle for dispensing a coating liquid, a needle that can be inserted into the inside of the nozzle to open and close the nozzle tip ft1 opening, and an outer circumferential surface that rotates near the nozzle tip. This is a marker coating device that includes a transfer roll that transfers a coating liquid to a marking member.

A uniform and clear line can be formed by increasing the area of the nozzle tip opening to the extent that an appropriate amount of coating liquid can be poured out while the transfer roll is rotating and transferring.

Furthermore, when coating is stopped, the opening at the tip of the nozzle is closed with a needle to prevent liquid dripping, and the coating liquid in the nozzle is blocked from air to avoid solidification and clogging.

Missing-5-1 An embodiment according to the present invention illustrated in FIGS. 1 to 6 will be described below.

FIG. 1 is a front view of a label applicator 1 according to this embodiment, FIG. 2 is a plan view of the main part thereof, and FIG. 3 is a side view of the main part thereof.

A screw shaft 3 and a guide rail 4 are installed horizontally between the left and right branch offices 2 so as to be positioned vertically.

A sliding member 5 is penetrated by the screw shaft 3 and the guide rail 4 and is supported so as to be slidable left and right, and a pair of applicator bodies 6 are provided on the left and right sides of the sliding member 5 and are oriented in the vertical direction. , two lines are formed on the surface of the tread material 7 that moves back and forth below the applicator main body 6.

The position of the line to be formed can be adjusted by appropriately moving the sliding member 5 from side to side using the screw @3.

The sliding member 5 has a substantially rectangular parallelepiped shape, and vertical support plates 10 are erected on the left and right sides on the upper surface of the slide member 5. A plate member 11 is fixed to the rear surface of each vertical support plate 10 in the shape of a letter when viewed from above. 10
supporting the

A bracket 12 is provided protruding from the surface of each vertical support plate 10, and an engagement member 13 is fixed to the upper end of the upper and lower cylinders 15 with the tip of the bracket 12 directed downward on the road, and is bifurcated into two. The upper and lower cylinders 15 are supported so as to be movable back and forth by pins 14 that are positioned to sandwich them from both sides and pass through the engaging member 13 and the bracket 12 in the left and right horizontal directions.

Further, brackets 17 are vertically installed on the left and right sides of the lower surface of the sliding member 5, and each bracket 17 is connected to a rocking plate 19 from both sides.
The bin 18 passes through these ends in the left and right horizontal directions to swingably support the rocking plate 19.

The intermediate portions of the two rocking plates 19 sandwich the tip portion 16a of the cylinder rod 16 protruding downward from the upper and lower cylinders 15, and a support shaft 20 horizontally passes through the same portion, allowing both to freely rotate. is engaged in.

The upper and lower cylinders 15 are located at the tip 1 of the cylinder rod 1G.
6a, that is, the engaging portion with the swing plate 19 is moved up and down in the vicinity of the height of the bin 18, so the swing plate 19 slightly swings up and down from the horizontal position with the bin 18 as the center. I can do J.

A connecting support member 21 is fixed to the front end of the rocking plate 19 at an angle close to perpendicular to the handle direction of the rocking plate 19 with two wooden screws 22. are fixed by screwing bolts 23 so as to face downward on the road.

Therefore, when the vertical cylinder 15 causes the cylinder rod 16 to protrude downward, the swing plate 19 is slightly lowered toward the front, as shown by the solid line in FIG.
The applicator main body 6 fixed to the tip of the applicator 9 is oriented substantially vertically and is connected to the transfer roll 3 located at the lower end of the applicator main body 6.
3 is in contact with the surface of the tread material 7, and the upper and lower cylinders 1
5 retracts the cylinder rod 16 upward, the swing plate 19 swings upward and tends to rise forward as shown by the two-dot chain line, and the applicator body 6 also swings upward, causing the transfer roller to move upward. /L/33 separates from the surface of the tread material 7.

Next, one applicator main body 6 will be explained based on FIGS. 4 to 6.

FIG. 4 is a side view of the applicator main body 6 with the coating liquid supply device 50 removed, and FIGS. It is a front view.

The applicator main body 6 whose back surface is fixedly supported by a connecting support member 21 at the tip of the swing plate 19 has an air cylinder 30 located above the fixed part, and a coating liquid supply member 31 fixedly below the fixed part. A nozzle forming member 32 is located below the liquid supply member 31, and a transfer roll 33 is pivotally supported below the nozzle forming member 32.

The coating liquid supply member 31 is fixed so that the upper half of its front and rear surfaces is sandwiched from the front and back by a rear plate member 28 and a front plate member 29 that are fixed to the connection support member 21. 31 has a substantially cylindrical internal space 34 having a central axis in the vertical direction.

Above the internal space 34 is an air cylinder 3 that passes through it.
The inner diameter is narrowed to approximately the same as the outer diameter of the cylinder rod 35 of 0, and furthermore, a round space with approximately the same diameter as the internal space 34 is formed above it.

At the same time, the gasket 37 is fitted into the cylindrical space created when the cylinder rod 35 passes through, and the presser member 38 is fitted onto the gasket 37 from above, and the presser member 38 is attached to the bolt 39.
8 is screwed onto the coating liquid supply member 31, thereby making the contact portion between the cylinder rod 35 and the coating liquid supply member 31 watertight.

A bulging portion 31a is formed diagonally upward from the left side surface of the coating liquid supplying member 31, and a circular hole passing diagonally through the bulging portion 31a communicates with the internal space 34. A female thread is formed.

A tip engaging portion 51 of the coating liquid supply device 50 is screwed into the spaced screw portion.

A cylindrical member 40 with a tapered inner surface is fitted into the internal space 34 of the coating liquid supply member 31 from below, and the nozzle forming member 32 supports the cylindrical member 40 in contact with the lower surface of the cylindrical member 40. 32 is supported by a support member 41 which pivotally supports the transfer roll 33 via a gasket 48 at the center outer circumference of the flange provided at its upper edge.

The support member 41 has a U-shaped cross section, and the transfer roll 33 is rotatably supported by a pivot shaft 42 installed horizontally in the left and right directions near the ends of the left and right side walls.

The support member 41 is bored in a portion connecting its left and right side walls, and the nozzle forming member 32 is fitted into the oval hole from above, and the support member 41 itself is fixed to the coating liquid supply member 31.

The nozzle forming member 32 has a small-diameter nozzle 32a formed in the center in the vertical direction, a lower surface inclined at a slight angle, and a groove 32b oriented in the front-rear direction on the lower surface. It opens in the strip 32a.

A needle 36 extending downward from the lower end of the cylinder rod 35 via a tapered portion 35a is inserted into the nozzle 32a of the nozzle forming member 32.

The transfer roll 33 has a shape in which the central outer peripheral part of a cylinder penetrated by the pivot shaft 42 bulges in the centrifugal direction, and a groove 33a is formed on the outer peripheral surface of the central maximum diameter part.

A part of the upper portion of the maximum diameter portion of the transfer roll 33 is inserted into the groove 32b on the lower surface of the nozzle forming member 32.

On the other hand, the air cylinder 30 can supply and discharge air through two supply and discharge ports 43 and 44 provided on the side thereof, thereby raising and lowering the cylinder rod 35 that passes vertically.

The support member 4 is placed from the right side on the upper surface of the air cylinder 30
5 is erected, the support member 45 is bent in the middle toward the upper part of the head 35b of the cylinder rod 35, and an elliptical hole is bored in the horizontal part of the support member 45 in the vertical direction. A female thread is formed on the inner surface of the circular hole.

A bolt 46 passes through the circular hole vertically and is screwed into the support member 4.
A nut 47 is screwed onto the bolt 4G so as to press against the upper surface of the bolt 4G and fix the bolt 46.

The height of the lower surface of the bolt 46 is adjusted by the screwing position of the bolt 46, and the head 35b of the cylinder rod 35 located below the bolt 46 touches the bolt 46 when the cylinder rod 35 has an upper tip I. The maximum lifting position can be regulated by contacting the ground.

Next, the coating liquid supply device 50 has its tip engaging portion 51 screwed into the bulging portion 31a of the coating liquid supplying member 31 from diagonally above, and the coating liquid supplying member 31 from the supply port opened in the tip engaging portion 51. A coating liquid can be supplied to the internal space 34 of the container.

A manual needle valve 53 is provided at the end of a hose 52 extending from a tank (not shown) that stores a coating liquid.
An automatic air valve 5G is connected to the manual needle valve 53 via a connecting pipe 55.
6 is connected to the tip engaging portion 51.

The manual needle valve 53 can be opened and closed by manual operation of the lever 54, and the air valve 56 can be opened and closed automatically based on a control signal.

Therefore, the application liquid is supplied through the hose 52 through the manual needle valve 53. The air is supplied to the applicator body 6 via the air valve 56.

Although the applicator main body 6 on the left side has been illustrated and described in FIGS. 4 to 6, the applicator main body 6 on the right side is also similar, and has a symmetrical structure.

The present embodiment is constructed as described above, and its operation will be explained. First, in the rest state, the upper and lower cylinders 15 retract the cylinder rod 16 upward, and the applicator main body 6 is raised upward. , manual needle valve 53. The air valve 56 is in a closed state (see FIG. 5).

Note that the cylinder rod 35 is lowered and the needle 36 closes the nozzle 32a.

When applying a line to the tread material 7, the tread material 7 is placed on a conveyor belt that moves forward, and the left and right transfer rolls 33 are positioned at predetermined positions on the surface of the tread material 7 where the line will be formed. Performs positioning in the width direction.

Then, operate the lever 54 to release the manual needle pal 753.
The valve is opened, and then the upper and lower cylinders 15 are driven to lower the applicator body 6 to bring the transfer roll 33 into contact with the tread material 7.

When the tread material 7 is moved, the transfer roll 33 in contact with it begins to rotate, and at an appropriate time, the air cylinder 30 is driven to raise the cylinder rod 35 together with the needle 36, opening the nozzle 32a, and simultaneously opening the air valve 5.
6 to open the valve (see Fig. 6).

The coating liquid is supplied from the coating liquid supply device 50 to the applicator main body 6, fills the internal space 34 of the coating liquid supply member 31, and is poured out from the nozzle 32a onto the grooves 33a on the outer peripheral surface of the transfer roll 33.

The poured coating liquid rotates about half a turn together with the grooves 33a of the transfer roll 33, reaches the tread material 7 below, and is transferred to the surface of the tread material 7, forming a line.

The coating liquid is applied to the transfer roll 3 within the lower surface groove 32b of the nozzle forming member 32 from the nozzle 32a with a narrow tip opening.
Since the liquid is poured into the groove 33a of No. 3, there is no leakage, and the transfer roll 33 forms a clear line with the width of the groove 33a.

When stopping forming the line, the air cylinder 30 lowers the cylinder rod 35 and the needle 36 moves into the nozzle 3.
At the same time as the air valve 56 opens the valve 2a, the air valve 56 closes the valve (the fifth
(state shown in the figure) Furthermore, the upper and lower cylinders 15 retract the cylinder rod 16 to raise the applicator body 6.

By separating the transfer roll 33 from the tread material 7, line formation can be reliably stopped at a desired time.

Moreover, after the nozzle 32a for dispensing the coating liquid is closed by the needle 36, no liquid drips.

Furthermore, since the remaining coating liquid is cut off from contact with air due to the closure of the nozzle 32a, assimilation will not occur and liquid clogging will not occur.

In this way, there is no need to worry about liquid dripping or clogging when line formation is stopped, so the area of the opening of nozzle 32a can be made appropriately large, and sufficient tJ and Ii liquid can be poured out during line formation, resulting in a uniform line. can contribute to the formation of

In the embodiment described above, a pair of applicator bodies 6 were provided on the left and right to form two lines on the tread material 7, but three or more applicator bodies 6 were arranged in parallel to form three lines. More than one line can be formed at the same time, or one line can be formed by one applicator body 6.

The present invention prevents liquid dripping and liquid clogging by providing a needle that can be opened and closed freely in the nozzle that pours the coating liquid onto the transfer roll, making it possible to always easily form a clear line. .

[Brief explanation of the drawing]

FIG. 1 is an overall front view of a label applicator according to an embodiment of the present invention, FIG. 2 is a plan view of the main parts, and FIG. 3 is a side view of the main parts.
Fig. 4 is a side view of the applicator main body with the coating liquid supply device removed, Fig. 5 is a cross section of the applicator main body and a front view of the coating liquid supply device, and Fig. 6 is a side view of the applicator main body in a different state. A cross section and a front view of the coating liquid supply device, and FIG. 7 is a side view of a conventional marker coating device. DESCRIPTION OF SYMBOLS 1... Sign coating device, 2... Support column, 3... Screw shaft, 4... Guide rail, 5... Sliding member, 6
... applicator body, 7... 1-reed material, 10... vertical support plate, 11... plate member, 12...
Bracket, 13... Engaging member, 14... Bin, 1
5...Upper and lower cylinder, 16...Cylinder rod, 1
DESCRIPTION OF SYMBOLS 1... Bracket, 18... Bin, 19... Rocking plate, 20... Support shaft, 21... Connection support member, 22...
...screw, 23...bolt, 28...rear plate member, 29...front plate member, 30...
...Air cylinder, 31...Coating liquid supply member, 31a
...Bulging part, 32... Nozzle forming member, 32a...
- Nozzle, 32b... groove, 33... transfer roll,
33a... Groove, 34... Internal space, 35... Cylinder rod, 35a... Tapered portion, 35b... Head, 36... Needle, 37... Packing, 38...
... Holding member, 39... Bolt, 40... Cylindrical member, 41... Supporting member, 42... Pivot, 43.44.
... Supply/discharge port, 45... Support member, 46... Bolt,
47... Nut, 48... Packing, 50... Coating liquid supply device, 51... Tip engaging portion, 52... Hose, 53... Manual needle pulp, 54... Lever , 55...Connecting pipe, 56...Air valve.

Claims (1)

[Claims] A device that applies a line to a component includes a nozzle that pours out the coating liquid, a needle that can penetrate inside the nozzle to open and close the opening at the tip of the nozzle, and an outer peripheral surface that rotates near the nozzle tip to transfer the coating liquid to the component. A sign coating device characterized by comprising a transfer roll.