JP2000308840A - Surface treating agent applying device for door glass run - Google Patents

Abstract

PROBLEM TO BE SOLVED: To completely automate the applying work of a surface treating agent on a part which is impossible to be coated if an outer seal lip is not developed. SOLUTION: A coating head 15 is engaged with a door glass run 1 for traveling and the part A to be coated is air-blown through an air blow hole 26 while developing the outer seal lip 6 at an inclined part 25 of the tip. A treating agent applying window part 27 is slid on the part A to be coated so as to run after the air blown part in order to automatically apply the surface treating agent permeated in the treating agent applying window part 27.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for applying a surface treating agent to a part of a door glass run for an automobile in order to prevent generation of abnormal noise, and more particularly, to a door glass run which is in elastic contact with a door glass. In order to prevent the seal lip from generating abnormal noise when subjected to wind pressure or vibration during traveling, for example, a urethane-based or silicone-based paint is applied as a surface treatment agent to the back surface of the seal lip. Device for

[0002]

2. Description of the Related Art A door glass run of an automobile has a substantially U-shaped cross section and has seal lips on both inner surfaces thereof, and the seal lip can move up and down the door glass while being in elastic contact with the door glass. The seal lip repeatedly adheres to and separates from the inner surface of the side wall of the glass run body when subjected to wind pressure or vibration during traveling or vibration during opening and closing of the door, and the occupant is guided. May cause intermittent generation of seal lip separation noise.

It is known that such an unpleasant separation sound can be suppressed by coating a surface treatment agent on the back surface of the seal lip and the inner surface of the glass run main body which face each other. Application of a urethane-based or silicone-based paint has been performed.

[0004]

In the above-mentioned work of applying the surface treatment agent for a door glass run, the glass run itself is not only limited to the narrow space of the U-shaped space of the door glass run but to be applied. It is difficult to open the mouth because it has a metal core, and the surface treatment agent cannot be applied unless the seal lip is turned up and deployed each time. Actually, workability and productivity have to be reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems. Particularly, the present invention enables automatic and stable application of a surface treating agent to improve workability and stabilize coating quality. It is an object of the present invention to provide a coating apparatus which has been developed.

[0006]

According to the first aspect of the present invention, a seal lip is integrally formed so as to protrude inward from an opening edge of a glass run body having a substantially U-shaped cross section. A device for automatically applying a liquid surface treatment agent to a portion extending from the inner side surface of a side wall portion of a glass run body having a seal lip integrally formed thereto to a back surface of the seal lip, wherein a door glass run is applied to a door glass run. Both the application head and the door glass run having a shape capable of entering the character-shaped space are relatively slid in the longitudinal direction of the door glass run by the driving means while maintaining the relative positional relationship other than the longitudinal direction of the door glass run. It is composed.

[0007] The coating head is provided with an inclined portion for expanding the seal lip while rolling up the slide lip as it slides with the door glass run, and a coating processing required portion of the door glass run to which the surface treatment agent is to be applied. An air blow hole that blows air toward the front side in the traveling direction of the coating head itself, and a surface treatment formed in a part that slides on a required coating processing part of the door glass run and supplied from an external processing agent supply unit. And a treatment agent application window for infiltrating and holding the agent.

[0008] The surface treating agent used here is a urethane-based or silicone-based paint similar to the conventional one.

The driving means may be any means capable of relatively sliding the door glass run and the coating head at a constant speed. For example, a servo motor driven ball screw or the like is used to fix the driving means at a fixed position. The application head side is slid with respect to the supported door glass run.

Therefore, according to the first aspect of the present invention,
The door glass run to which the surface treatment agent is to be applied is supported by an appropriate supporting means, the door glass run is positioned relative to the coating head, and the processing agent application window of the coating head is supplied from an external processing agent supply means. A surface treatment agent is supplied to the substrate for infiltration. At the same time, compressed air is blown out from the air blow holes. In this state, when the application head is slid in the longitudinal direction of the door glass run with respect to the door glass run fixed at a fixed position, the inclined portion of the application head unfolds the seal lip while rolling up the seal lip, and the surface treatment. Prior to application of the agent, foreign matter and the like in the portion to be applied is removed by air blowing, and subsequently, the surface treatment agent infiltrating the treatment agent application window portion is exposed to the back surface of the seal lip and the door glass run facing the seal lip. Is applied to the inner surface of the side wall.

According to a second aspect of the present invention, in the first aspect of the present invention, the treatment agent application window is formed on the surface of the application head so as to form a predetermined angle with respect to the sliding direction of the application head. And a longitudinal groove for storing the surface treatment agent supplied from the treatment agent supply means, and engraved from the longitudinal groove toward the rear side in the sliding direction so as to expand the infiltration range of the surface treatment agent accumulated in the longitudinal groove. And a plurality of lateral grooves formed.

Therefore, according to the second aspect of the present invention, the surface treatment agent supplied from the external treatment agent supply means and stored in the vertical groove on the surface of the coating head is directed in the longitudinal direction of the door glass run. When the coating head is slid in the longitudinal direction with respect to the door glass run, since it infiltrates the entire surface along the multi-groove transverse groove, the back surface of the seal lip and the inner surface of the side wall portion of the door glass run facing the seal lip run. The surface treatment agent will be applied uniformly.

According to a third aspect of the present invention, while maintaining the treatment agent application window of the application head in the first or second aspect of the invention in an upward horizontal position, the application head and the door glass run are relatively positioned. It is characterized by sliding.

Therefore, according to the third aspect of the present invention, the treatment agent application window of the application head is in the upward horizontal position, and the required application processing portion of the door glass run that slides relative to the application head is downward. The application of the surface treatment agent is performed in an appropriate posture, thereby preventing the occurrence of unnecessary dripping or the like.

According to a fourth aspect of the present invention, in any one of the first to third aspects, a sensor for monitoring the infiltration state of the surface treatment agent in the treatment agent application window is provided. And

Therefore, in the invention according to the fourth aspect, for example, immediately before the surface treatment agent is actually applied to the door glass run, it is determined whether or not the surface treatment agent has uniformly infiltrated the treatment agent application window. Confirm with.
Alternatively, immediately after the application of the surface treatment agent, it is checked whether the surface treatment agent is evenly infiltrated into the treatment agent application window. By doing so, it is possible to prevent a door glass run with an insufficiently applied surface treatment agent from flowing out to a subsequent process.

[0017]

According to the first aspect of the present invention, the surface including the operation of expanding the seal lip only by sliding the door glass run and the application head relative to each other in the longitudinal direction of the door glass run by operating the driving means. Since the application of the treatment agent can be performed automatically, the workability during the application can be greatly improved compared to the past, and the application quality does not vary due to individual differences of workers as in the past. Therefore, the coating quality can be improved and stabilized.

In addition, prior to the actual application of the surface treatment agent, the application treatment portion is preliminarily cleaned by air blow, so that dust and foreign matter are prevented from adhering. This has the effect of improving quality.

According to the second aspect of the present invention, a vertical groove is formed on the surface of the coating head so as to form a predetermined angle with respect to the sliding direction of the coating head; Since the treatment agent application window portion was formed with the multiple lateral grooves engraved toward the rear side, the application width dimension is defined by the length of the vertical groove, so that the surface treatment agent does not protrude or is unnecessary. In addition to preventing liquid dripping beforehand, the lateral groove for expanding the infiltration range is aligned with the relative sliding direction between the door glass run and the coating head, so that coating unevenness does not occur and is uniform over the entire area where coating is required In particular, when the treatment agent application window portion is in an upwardly horizontal state as in the third aspect of the present invention, the above-mentioned effect is more remarkable.

According to the fourth aspect of the present invention, the state of infiltration of the surface treatment agent in the treatment agent application window is monitored by the sensor, so that abnormal processing is performed using the output of the sensor. By doing so, there is an effect that it is possible to prevent a door glass run in which the surface treatment agent has not been applied or is in an insufficiently applied state from flowing out to a subsequent process.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 5 show a preferred embodiment of a surface treatment agent application apparatus according to the present invention, in which a surface treatment agent is applied to a door glass run 1 as shown in FIG. 1 shows the device configuration.

As shown in FIG. 6, the door glass run 1
A channel portion 2 having a substantially U-shaped cross section as a door glass run body for receiving and guiding a door glass (not shown).
And a flange fitting portion 4 having a substantially U-shaped cross section extending integrally from the side wall portion 3b in the opposite direction while sharing one of the side wall portions 3b of the channel portion 2. It is formed in the shape of a long rail having a cross section, and is generally formed by extruding solid rubber so as to cover the cored bar 5.

An outer seal lip 6 and an inner seal lip 7 which project obliquely inward from the ends of the side walls 3a, 3b are formed integrally with the opening edge of the channel portion 2. A flange holding lip 9 is integrally formed with the flange fitting portion 4 together with the fitting groove 8, and the fitting groove 8 is fitted and held in a predetermined flange portion when the vehicle body is assembled. At the same time, both the outer and inner seal lips 6, 7 are in elastic contact with the door glass.
When assembling to the door, the outer seal lip 6 is sandwiched between the outer glass and the inner seal lip 7
Are located on the vehicle interior side.

Further, as described above, when the outer seal lip 6 repeatedly contacts and separates from the inner surface of the side wall portion 3a when receiving vibration or the like during traveling, a separation sound is generated. In order to prevent this, a portion extending from the back surface of the outer seal lip 6 to the inner surface of the side wall portion 3a (hereinafter, this portion is referred to as a coating required portion), that is, FIG.
As shown in FIG. 5, a surface such as a urethane-based or silicone-based paint previously blended in the application-required processing portion A in a state where the outer lip 6 is developed so as to be substantially flush with one of the side wall portions 3a. The treatment agent is applied to form the coating layer 10.

In this embodiment, the door glass run 1 and the coating head 15 are relatively slid in the longitudinal direction in the form shown in FIG. Is provided, and details of the apparatus are shown in FIG.

In FIGS. 1 to 3, reference numeral 11 denotes a main body frame in an upright posture, and reference numeral 12 denotes a main body frame which is slidably supported in a direction perpendicular to the plane of FIG. A slider 15 is a coating head which is horizontally supported by the slider 12 via a mounting bracket 16 and a holder 17, and 18 is a work positioning jig which clamps and positions the door glass run 1 to be processed. And the screw shaft 19
A nut member 20 screwed to the screw shaft 19 to form the ball screw 14 together with the screw shaft 19
When the screw shaft 19 is driven forward or backward by the servo motor 21, the slider 12 reciprocates linearly with the coating head 15 with respect to the door glass run 1. Thereby, the ball screw 14 and the servo motor 2
The driving means for running (sliding) the application head 15 is constituted by 1 and the like.

As shown in FIG. 4 in addition to FIGS. 1 to 3, the coating head 15 is formed around a deformed rectangular solid metal head plate 22 with one side cut out, and maintains a horizontal state. Is fixed to the holder 17 by bolts 23. When the application head 15 is slid with respect to the door glass run 1 in order to apply the surface treatment agent to the coating processing required portion A (see FIG. 3) of the door glass run 1 as described later, As shown in FIGS. 1 and 3, the outer seal lip 6 and the inner seal lip 7 of the door glass run 1 are each positively inserted by inserting the inclined portion 25 into the end surface of the door glass run 1 first. They are turned up and deployed.

An air blow hole 26 is formed at the tip end side of the inclined portion 25 of the head plate 22, and a treatment agent application window 27 is formed at the upper surface. The position of the treatment agent application window 27 is set such that the application head 15 and the door glass run 1 are in a regular relative positional relationship as shown in FIG. And the air blow hole 2 in the sliding direction of the coating head 15.
6 is a positional relationship that always precedes the treatment agent application window 27.

The air blow hole 26 is provided in the head plate 2
It is connected to an air supply pipe 29 via an air supply passage 28 formed inside 2 so that compressed air is supplied from an air pressure source (not shown). Thereby, when the application head 15 slides, the treatment agent application window 27
Prior to the above, dust or foreign matter is removed by injecting air from the air blow hole 26 toward the application processing required portion A.

As shown in FIG. 4 and FIG. 5, the processing agent application window 27 has a single vertical groove 30 formed by being inclined at a predetermined angle with respect to the sliding direction of the application head 15.
And a plurality of extremely thin horizontal grooves 31 extending from the vertical grooves 30 to the rear side in the traveling direction of the coating head 15 over the entire length of the vertical grooves 30, and the vertical grooves 30 and the horizontal grooves 3 are formed.
Each of them has a depth of, for example, about 0.5 mm, and each lateral groove 31 is formed in a semicircular cross section. The vertical groove 30 is connected to a treatment agent supply pipe 34 via a discharge port 32 and a treatment agent supply passage 33 formed inside the head plate 22, and supplies a surface treatment agent from a treatment agent supply device (not shown). Is to receive. The processing agent supply device adjusts the amount and pressure of the processing agent to be supplied, and sets the processing agent application window 27 to the processing agent application window 27 during the coating process according to a preset condition set according to the length of the workpiece. The processing agent application window 27 is provided with a bypass path of a valve switching type that circulates the processing agent through a predetermined bypass passage so as not to supply the surface processing agent at other times. I have.

Therefore, the surface treatment agent discharged from the discharge port 32 and stored in the vertical groove 30 is applied to the treatment agent application window 2.
7 to infiltrate the entirety of the multiple lateral grooves 31 from the vertical grooves 30 so as to increase the holding area without overflowing, and to cover the width of the coating processing required portion A on the door glass run 1 side with the infiltration area. ing.

The coating head 15 is a door glass run 1
The stroke is set so that the necessary treatment agent application operation is completed by the forward or backward movement in the longitudinal direction, and the stroke limit positions on the application operation start side and the application operation end side are shown in FIG. As shown in FIG. 1, a fixed position sensor (for example, a photoelectric color sensor) 35 is provided. When the application head 15 reaches the stroke limit position, the sensor 35 is directed to the lateral groove 31 of the processing agent application window 27. For example, the sensor 35 has a difference in light reflectance from the processing agent application window 27. The appropriateness of the infiltration state of the surface treatment agent in the treatment agent application window 27 is detected.

Next, a series of procedures of the surface treatment agent application operation by the application apparatus configured as described above will be described step by step.

As shown in FIGS. 1 and 3, prior to running the coating head 15 and starting the actual coating operation, the door glass run 1 is properly positioned and fixed to the work positioning jig 18. The application head 15 is located at the stroke limit position S1 on the application operation start side, air is blown out from the air blow holes 26, and the surface of the treatment agent application window 27 that has been impregnated with the surface treatment agent by the previous application operation is wiped. Wipe off the surface treatment agent. Thereafter, the coating head 15 moves in the traveling direction, and stops at one end of the door glass run 1 which is preset according to the length of the door glass run 1. In this state, the valve on the side of the treatment agent supply device is switched so that the surface treatment agent is supplied from the treatment agent supply device to the treatment agent application window 27, and the vertical groove 30
And the horizontal groove 31 is infiltrated with the surface treatment agent.

When the suitability of the infiltration state of the surface treatment agent is determined before the actual application work is started, the suitability is determined based on the output of the sensor 35 shown in FIG. 4, and it is determined that the infiltration state is defective. In such a case, the operation is not shifted to the subsequent application operation, but an alarm or the like is issued to notify the operator that the infiltration state is defective.

On the other hand, when the infiltration state is proper, the running of the coating head 15 is immediately started to start the work of applying the surface treating agent. At this time, as shown in FIG. 3, the coating head 15 enters the channel portion 2 with the end face in the longitudinal direction of the door glass run 1 as an entrance from the inclined portion 25 on the front end side in the traveling direction. As shown in FIGS. 1 and 3, the inner seal lip 7 is turned outward with the progress of the approaching degree of 15, and
The outer seal lip 6 is also turned up and out,
The outer seal lip 6 is developed until it is substantially flush with the side wall surface 3a of the channel portion 2 as shown in FIGS. At the same time, since the air is blown out from the air blow hole 26 which is always ahead of the processing agent application window 27, the application processing portion A where the surface processing agent is to be applied is air blown in advance. The foreign matter is cleaned by being blown off.

Here, the extruded door glass run 1
Is cut off to a predetermined length in the previous step, since the chips generated along with the cutting of the cored bar 5 (see FIGS. 6 and 7) adhere to the channel portion 2, the above-described air blow is mainly performed. This is performed for the purpose of removing the chips.

The coating head 15 slides in the longitudinal direction of the door glass run 1 in a state where the outer and inner seal lips 6, 7 are unfolded, so that the coating head 15 infiltrates the processing agent application window 27. The surface treatment agent is uniformly applied to the application-required portion A with the width of the treatment agent application window 27. That is, as described above, the outer and inner seal lips 6, 6
7 is developed and the required application processing portion A is blown by air, and the surface treatment agent is applied at the treatment agent application window 27 in a manner to follow the air blown portion, thereby forming the coating layer 10. When the application of the surface treatment agent has been completed and the application head 15 has passed, the outer and inner seal lips 6, 7 return to their original states by self-restoring force in that order.

In this manner, the surface treatment agent is uniformly applied to the above-mentioned required application processing portion A just by moving the application head 15 over the entire length of the door glass run 1.

In order to determine whether or not the application state of the surface treatment agent is appropriate immediately after the end of the actual application operation, if the application head 15 is positioned at the stroke end on the application operation end side, the sensor 35 shown in FIG. Is directed to the treatment agent application window 27 of the application head 15, and the output of the sensor 35 is used to determine whether the surface treatment agent is reduced.
At this time, if the supply condition of the surface treatment agent is determined to be defective, it is determined that the surface treatment agent may not be sufficiently applied to the door glass run 1 side, and, for example, an alarm is issued. Notify the operator that the coating condition is bad.

As described above, according to the present embodiment, the coating head 15 is slid once over the entire length of the door glass run 1, and the development of the outer seal lip 6 which is the pretreatment and the air blow of the coating treatment required portion A are performed. In addition, the application of the surface treatment agent and the determination of its suitability are all automatically processed.

[Brief description of the drawings]

FIG. 1 is an explanatory side view of a main part showing a preferred embodiment of a surface treatment agent application device according to the present invention.

FIG. 2 is an enlarged plan explanatory view of a main part of FIG. 1;

FIG. 3 is a perspective view of a main part showing a relative positional relationship between a door glass run and a coating head.

FIG. 4 is an enlarged perspective view showing details of a coating head.

FIG. 5 is an enlarged explanatory diagram of FIG. 4;

FIG. 6 is an essential part perspective view showing an example of a door glass run.

FIG. 7 is an enlarged sectional view of the door glass run shown in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Door glass run 2 ... Channel part 3a, 3b ... Side wall part 6 ... Outer seal lip 10 ... Coating layer of surface treatment agent 14 ... Ball screw (drive means) 15 ... Coating head 21 ... Servo motor (drive means) 22 ... Head Plate 25: Inclined part 26: Air blow hole 27: Processing agent application window 30: Vertical groove 31: Horizontal groove 35: Sensor A: Application processing required

Continuing from the front page (72) Inventor Shinichi Segawa 330 Kinagakawa-cho, Chiba Pref. In-house (72) Inventor Hiroki Suga 330 Kinagagawa Rubber Industry Co., Ltd. CA07 CA11 CA17 CA20 DA11 DA20 DB30

Claims (4)

[Claims] 1. A glass run in which a seal lip is integrally formed so as to protrude inward from an opening edge of a glass run main body having a substantially U-shaped cross section. An apparatus for automatically applying a liquid surface treatment agent to a portion extending from an inner surface of a side wall portion of a main body to a back surface of the seal lip, and a coating head having a shape capable of entering a U-shaped space of a door glass run to be coated. Both door glass runs,
The driving means is configured to relatively slide in the longitudinal direction of the door glass run while maintaining the relative positional relationship other than the longitudinal direction of the door glass run, and the application head is moved along with the sliding with the door glass run. An inclined portion for developing while gradually turning up the seal lip, and an air blow hole for blowing air toward a forward side in a traveling direction of the application head itself in a required application processing portion of a door glass run to which the surface treatment agent is to be applied. A treatment agent application window portion formed on a portion of the door glass run that slides with a necessary application treatment portion to infiltrate and retain a surface treatment agent supplied from an external treatment agent supply unit. An apparatus for applying a surface treatment agent for a door glass run. 2. The treatment agent application window is engraved on a surface of the application head so as to form a predetermined angle with respect to a sliding direction of the application head, and is supplied from a treatment agent supply unit. And a plurality of horizontal grooves formed in the sliding direction rearward from the vertical groove in order to extend the infiltration range of the surface treatment agent stored in the vertical groove. The apparatus for applying a surface treatment agent for a door glass run according to claim 1, wherein: 3. The method according to claim 1, wherein the application head and the door glass run are relatively slid while keeping the treatment agent application window of the application head in an upward horizontal position. An apparatus for applying a surface treatment agent for a door glass run according to the above. 4. The surface treatment agent application according to claim 1, further comprising a sensor for monitoring a state of infiltration of the surface treatment agent in the treatment agent application window. apparatus.