JPH04265184A - Removing method for excess pile - Google Patents

Abstract

PURPOSE:To obtain a removing method for an excess pile wherein the excess pile stuck to a work is surely removed and also consumption of the pile is regulated to the necessary minimum limit and, furthermore, the environment in a factory is not impaired. CONSTITUTION:A work 6 is moved and also the nearly whole range of the surface of the work 6 is rubbed by brushes 16-19 after water is poured on the work 6 or while water is poured thereon.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing excess pile from a flocked product (hereinafter referred to as a work) such as a glass run or a door trim.

0002

[Prior Art] In a series of manufacturing processes for workpieces such as glass runs and door trims, which are made by flocking a large number of piles made of nylon fiber or the like on the surface of a base material, the piles are glued to the surface of the workpiece body. There is a so-called electrostatic flocking process in which flocks are planted on the surface coated with the agent. When the pile is electrostatically flocked to the workpiece, the pile is attached not only to the adhesive part on the surface of the workpiece to which a predetermined adhesive is applied, but also to other parts due to static electricity or the like. Usually, after the electrostatic flocking process, the workpiece is subjected to a drying process for drying the adhesive used for electrostatic flocking. The drying temperature in this drying step reaches about 150 to 180°C. At this time, oil and fat seep out from the inside of the workpiece, which is generally made of rubber, etc., and the oil and fat act as an adhesive, and if left as is, the excess pile will remain attached to the workpiece. turn into. As a result, not only the excess pile is consumed, but also the appearance of the product may be damaged.

[0003] In order to deal with the above problem, the excess pile has conventionally been removed by the following method. That is, as shown in FIG. 10, an air blow type surplus pile removal device 81 was employed. This removing device 81 supplies air to an air blower 83 using an air compressor 82 and blows off the excess pile attached to the workpiece 85 by injecting air from an air nozzle 84. The blown excess pile is collected by a dust collector 86. It had been.

0004

[Problems to be Solved by the Invention] However, in the removal method using the air blow method as described above, the air injected from the air nozzle 84 diffuses by the time it reaches the surface of the workpiece 85, so that sufficient excess pile removal pressure cannot be applied. I couldn't get it. Therefore, it is possible to increase the pressure, but there is a limit to increasing the air blowing pressure from the viewpoint of cost or the amount of piles recovered, so with conventional equipment, excess piles attached to the workpiece 85 are reliably removed. I couldn't. As a result, there is a possibility that the appearance quality of the workpiece 85 may deteriorate, and there is a problem that the amount of surplus pile collected decreases and the amount of pile consumed becomes larger than necessary. Furthermore, there is also the problem that the surplus pile blown away by the air blow is scattered outside the device 81 during the time it reaches the dust collector 86 or due to air leakage from the dust collector 86 itself, deteriorating the environment in the factory.

The present invention has been made to solve the above-mentioned problems, and its purpose is to be able to reliably remove excess piles adhering to workpieces, to minimize the consumption of piles, and to reduce the amount of piles within the factory. To provide a method for removing excess piles that does not cause environmental deterioration.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the first aspect of the present invention is a method for removing excess pile attached to a flocked workpiece, which includes moving the workpiece and The gist is a method for removing excess pile, which is characterized by rubbing almost the entire surface of the workpiece with a brush after or while pouring water on the workpiece.

[0007] Furthermore, the second invention has a bent shape,
This is a method for removing excess pile attached to a flocked workpiece, which involves moving the workpiece and spreading the workpiece into a substantially flat shape using a workpiece spreading means after or while pouring water on the workpiece. , the gist of which is a method for removing excess pile, which is characterized by scrubbing almost the entire surface of the workpiece from both the top and bottom sides with a brush.

[0008]

[Operation] In the first aspect of the invention, excess pile attached to the surface of the work is removed by spraying water on the work. Furthermore, by scrubbing almost the entire surface of the workpiece with the brush, excess pile still attached to the workpiece surface is reliably removed and recovered together with water.

In the second invention, in addition to the first invention, the workpiece is spread out into a substantially planar shape by the workpiece spreading means. Then, by brushing almost the entire surface of the workpiece from both the upper and lower surfaces of the workpiece, the excess pile is easily removed together with water, and the excess pile attached to the workpiece surface is more reliably removed and recovered.

0010

[Example] Examples embodying the present invention are shown below in Figures 1 to 8.
The explanation will be based on. (First embodiment) Fig. 1 shows a surplus pile removal device 1 of this embodiment.
FIG. As shown in the figure, this device 1 is covered by a main body case 2 having a substantially rectangular parallelepiped shape. The bottom surface of the main body case 2 is an inclined surface that becomes lower toward the center, and excess pile flows along the bottom surface toward the center due to the water flow. A discharge port 3 is transparently provided in this central portion, and a drain pipe 4 having the same inner diameter as the discharge port 3 is provided downward. The excess pile passes through the drain pipe 4 by the water flow, is guided to a water tank (not shown), and is collected.

In addition, in the same figure, a square-shaped entrance 5 is transparently provided at approximately the center of the right wall of the main body case 2.
A workpiece 6 is guided into the apparatus 1 through the entrance 5. On the other hand, a similarly square-shaped outlet 7 is transparently provided at approximately the center of the left wall of the main body case 2, and the workpiece 6 is taken out from the outlet 7. Note that at least the entrance 5 is provided with a sealing structure (not shown) made of a rubber piece or the like to prevent excess pile from scattering from the main body case 2.

Inside the main body case 2, there are two partition plates 8.
, 9, and from the inlet 5 side to the outlet 7
A first chamber A, a second chamber B, and a third chamber C are formed toward the center. The partition plates 8 and 9 have rectangular through holes 8a and 9a through which the workpiece 6 can sufficiently pass through. Next, the configuration of each of the chambers A, B, and C will be explained. An annular air blowing ring 10 is provided in the first chamber A, and air is supplied to this air blowing ring 10 from outside the main body case 2. The air blowing ring 10 is arranged so that the workpiece 6 can pass approximately through the center of the ring 10. Also,
The inner peripheral surface of the air blowing ring 10 is provided with 5
A flexible jet nozzle (hereinafter referred to as a jet nozzle) 11 is provided protruding toward the center of the air blowing ring 10 in a state where it is inclined in the direction in which the workpiece 6 travels. These nozzles 11 are bendable so that the injection destination can be changed as appropriate depending on the shape of the workpiece 6 and the like. And air blow ring 10
Compressed air is blown onto the workpiece 6 through these jet nozzles 11.

[0013] In the second chamber B, a pressure water injection ring 12,1 is provided.
3 are provided at two locations, and pressure water is supplied to these pressure water injection rings 12 and 13 from the outside of the main body case 2. These pressure water injection rings 12,
Similarly to the above, the rings 13 are arranged so that the workpiece 6 can pass approximately through the center of the rings 12 and 13. and,
Each pressure water injection ring 12, 13 has five tubes each made of a thin tube.
Jet nozzles 14 and 15 are provided protruding in the center direction of each pressure water injection ring 12 and 13 toward a brushing zone Z to be described later, and these jet nozzles 14,
Pressure water is sprayed onto the workpiece 6 via the pipe 15.

A brushing zone Z is provided between the pressure water injection rings 12 and 13 provided at the two locations. In the brushing zone Z, as shown in FIG. 3, four rotary brushes 16 to 19 are supported so as to be rotatable at high speed. The rotating brush 16 brushes the inner surface of the workpiece 6, which has a substantially U-shaped cross section, with rotating brushes 17 and 1.
Reference numeral 8 brushes both sides of the workpiece 6, and a rotating brush 19 brushes the bottom surface of the workpiece 6. The rotating brushes 16 to 19 can be moved back and forth so that they can be appropriately arranged depending on the wear of the brushes and the sizes and shapes of the various workpieces 6.

[0015] In the third chamber C, annular air blowing rings 20 and 21 are provided at two locations, as in the first chamber A, and the air blowing rings 20 and 21 have thin tubes. Five jet nozzles 22 and 23 are provided to protrude toward the center of the air blowing rings 20 and 21, respectively. And these five jet nozzles 22
Compressed air is blown onto the workpiece 6 through the workpiece 6 to remove water adhering to the workpiece 6, so-called "draining".

Next, an explanation will be given of the operation when removing excess pile attached to the workpiece 6 using this apparatus 1. In this embodiment, as shown in FIG. 2, the workpiece 6 has a U-shaped cross section, is bent inward from both ends, and has a metal insert 6a embedded inside. use After extrusion molding and vulcanization process,
Work 6, which has undergone the electrostatic flocking process and the subsequent drying process, is first
As shown in FIG. 1, it is transported from the inlet 5 to the first chamber A inside the device 1. In the first chamber A, among the surplus piles attached to the surface of the workpiece 6, the surplus piles with a relatively weak adhesion force are blown onto the workpiece by compressed air jetted from the jet nozzle 11 of the air blowing ring 10. Removed from 6. The workpiece 6 is then guided to the next second chamber B through the through hole 8a of the partition plate 8.

In the second chamber B, the pressure water injection ring 12
Pressure water from the jet nozzle 14 is sprayed onto the workpiece 6. At this time, most of the excess pile attached to the surface of the workpiece 6 is removed from the workpiece 6 by the pressure water and falls downward together with the water. and,
Next, the workpiece 6 is subjected to a brushing zone Z. In the same brushing zone Z, the inner surface of the workpiece 6 having a substantially U-shaped cross section is rubbed by the rotating brush 16, and the excess pile that was not removed even with the pressure water is removed. The surface is a rotating brush 17,
18, the bottom surface of the workpiece 6 is rubbed by a rotating brush 19, and the excess pile is removed as before. Then, the pressure water is applied to the pressure water injection ring 1 again.
The liquid is sprayed onto the workpiece 6 from the jet nozzle 15 of No. 3. At this time, the excess pile removed by the rotating brushes 16 to 19 in the brushing zone Z is washed away and falls. Incidentally, the surplus pile that has fallen in each of the above steps flows down the drain pipe 4 along the inclined surface of the bottom surface of the main body case 2 together with water. The excess pile collected in a water tank (not shown) is dried and subjected to the flocking process again.

The workpiece 6 that has gone through each process in the second chamber B is guided into the next third chamber C through the through hole 9a of the partition plate 9. In the third chamber C, compressed air is sprayed onto the surface of the workpiece 6 from jet nozzles 22 and 23 of air blowing rings 20 and 21 provided at two locations in the third chamber C. That is, "draining" is performed in the second chamber B. Then, the workpiece 6 is transported outward from the outlet 7, and the series of excess pile removal steps is completed.

As described above, in this embodiment, not only compressed air but also pressurized water is blown onto the workpiece 6, and in the brushing zone Z, brushing is performed over almost the entire surface of the workpiece 6.
The excess pile is removed reliably, and the surface of the workpiece 6 is
There is almost no surplus pile left. Therefore, the appearance quality of the workpiece 6 can be improved. Moreover, since surplus piles can be reliably collected and reused, consumption of surplus piles can be minimized and costs can be reduced.

[0020] Furthermore, the inside of the main body case 2 is almost completely shut off from the outside, and in addition, in the second chamber B where the excess pile is removed the most, the excess pile from which pressure water has been removed is made to flow. Therefore, there is almost no chance that surplus piles will scatter outside and deteriorate the environment of factories, etc. Furthermore, since the surface of the work 6 is rubbed by the rotating brushes 16 to 19 from each side of the work 6, there is no need to deform the work 6 before brushing. Excess piles can be reliably removed even if they are buried.

(Second Embodiment) Next, a second embodiment will be explained. FIG. 4 is a longitudinal sectional view showing the inside of the surplus pile removing device 31 in the second embodiment. Similar to the first embodiment, an inlet 33 and an outlet 34 are provided at the upper part of the main body case 32.
The bottom surface thereof is also an inclined surface that becomes lower toward the center, as described above, and a discharge port 35 and a drain pipe 36 are provided at the center. Also,
The vicinity of the inlet 33 and outlet 34 are partitioned by protective covers 37 and 38 to prevent water droplets from scattering to the outside, and the protective covers 37 and 38 have through holes 37a and 38a large enough for the workpiece 39 to pass through. It is provided.

A guide roller 40 as a workpiece spreading means is provided in the space partitioned by the entrance 33 and the protective cover 37. On the other hand, a guide roller 4 is also provided inside the space partitioned by the outlet 34 and the protective cover 38.
1 is provided. Further, in other spaces within the main body case 32, first to fifth rollers 4 are provided in order from the entrance 33 side.
2 to 46 are provided. Among them, the third roller 44
only is arranged at approximately the same height as the entrance 33,
All others are located at lower positions.

A pair of upper and lower drain pipe-shaped pressure water injection cylinders 47 and 48 are provided between the first roller 42 and the second roller 43 and between the fourth roller 45 and the fifth roller 46, respectively. Jet nozzles 49, which extend downward and upward from the same pressure water injection cylinders 47, 48,
Pressure water is sprayed from 50 onto the surface of the workpiece 39.

Rotating brushes 51 and 52 are supported in the vicinity of the second roller 43 and the third roller 44 so as to be able to rotate at high speed, and normally the bristles of each of the rotating brushes 51 and 52 touch the rollers 43 and 44, respectively. 44. As in the first embodiment, the rotating brushes 51 and 52 are movable forward and backward, and their angles can be adjusted so that their positions can be adjusted according to the wear of the brushes, the size of the workpiece 39, and the like. Furthermore, drain pipe-shaped pressure water injection cylinders 53 and 54 are provided near the rotating brushes 51 and 52, respectively. Jet nozzles 55 and 56 are provided that extend toward the boundary line between the third roller 44 and the rotating brush 52, respectively, and spray pressurized water onto the workpiece 39 through the jet nozzles 55 and 56. ing.

A pair of left and right air blowing tubes 57 are provided between the fifth roller 46 and the guide roller 41 on the outlet 34 side, and extend from the air blowing tubes 57 toward the right or left. Compressed air is injected from the jet nozzle 58, and the surface of the workpiece 39 is
It is now possible to drain the water. Next, this device 31
The effect when removing excess pile attached to the workpiece 39 using the method will be explained. In this embodiment, since the workpiece 39 is spread out into a substantially planar shape, it is necessary to use a workpiece having a U-shaped cross section and no insert buried therein, as shown in FIG.

As in the first embodiment, as shown in FIG.
and is guided to guide rollers 40 inside the device 31. At this time, as shown in FIG. 6, the workpiece 39 is stretched by the guide rollers 40, so that the lip portions 39a on both sides, which are the upper ends thereof, are expanded outward and become substantially flat. Then, as shown in FIG. 4, the work 39 heads downward, and by passing through the first roller 42, the direction of movement is changed to the left in the figure. After passing through the first roller 42 and between the workpiece 39 and the second roller 43, pressurized water is sprayed from above and below from the pressure water injection cylinder 47 through the jet nozzle 49. At this time, many of the surplus piles attached to the surface of the workpiece 39 are removed, and in particular, most of the surplus piles on the bottom surface of the workpiece 39 in the figure fall together with the water.

Next, the workpiece 39 is guided to the second roller 43. At the second roller 43, the direction of movement of the workpiece 39 is changed upward, and the lower surface of the workpiece 39, which is substantially planar, is rubbed by the rotating brush 51. At this time, the excess pile firmly attached to the lower surface of the workpiece 39 is removed, washed away by the pressure water injected from the pressure water injection tube 53 located near it through the jet nozzle 55, and falls together with the water.

Then, the workpiece 39 guided by the third roller 44 is rotated half a turn and its traveling direction is changed downward, and the upper surface of the workpiece 39 is rubbed by the rotating brush 52. At this time, the excess pile firmly attached to the upper surface of the workpiece 39 is removed, as described above, and is washed away by the pressure water sprayed from the pressure water injection tube 54 located near it through the jet nozzle 56, and falls down with the water. do.

The workpiece 39, whose traveling direction has been changed to the left by the next fourth roller 45, is again moved to the pressure water injection cylinder 4.
Pressure water is sprayed from above and below from 8 through a jet nozzle 50. At this time, the excess pile that did not fall even with the brushing is washed away and falls. The traveling direction of the work 39 is again changed upward by the fifth roller 46, and on the way upward, the work 39 is "drained" by compressed air injected from the jet nozzle 58 via the air blow cylinder 57.

The workpiece 39 passes through the protective cover 38, passes through the guide rollers 41, and is then conveyed outward from the outlet 34, completing the series of steps. Note that the work 3
9 is made of rubber or the like that has a restoring force, and since no insert is embedded inside it, if the tension is weakened, it will naturally return to its original U-shaped cross section during transportation.

As described above, the second embodiment provides the following effects in addition to the effects of the first embodiment. In other words, workpiece 3 has no inserts buried inside.
If it is 9, the workpiece 39 will be spread out in a flat shape simply by being suspended on the guide rollers 40. Then, the planar work 39 is covered with two rotating brushes 51 and 52 on both upper and lower surfaces.
The entire surface of the workpiece 39 is brushed just by rubbing with a brush, and the excess pile can be removed more reliably than in the first embodiment. Therefore, the appearance quality can be further improved, and the number of rotating brushes used can be reduced, leading to cost reduction.

Furthermore, since the outlet 34 is provided above the main body case 32, the workpiece 39 rises while moving from the fifth roller 46 to the guide roller 41, and water droplets etc. attached to the workpiece 39 can be dropped during that time. can. Therefore, in addition to compressed air from the jet nozzle 58, further "draining" can be applied. Furthermore, entrance 33
And near the exit 34, protective covers 37 and 38 are provided,
The structure was designed to be as isolated as possible from the outside, so
The “mist” of water and the excess pile are the equipment 31.
Since there is no leakage to the outside, deterioration of the environment of factories, etc. can be prevented.

(Third Embodiment) Next, a third embodiment will be explained. FIG. 7 shows the surplus pile removal device 6 of the third embodiment.
FIG. 1 is a side view showing FIG. As shown in the figure, this device 6
1 is almost the same as the first embodiment in this embodiment,
It is covered by a main body case 64 having an inlet 62 and an outlet 63. The inside of the main body case 64 is divided into a first chamber D and a second chamber E by a partition plate 60 having a through hole 60a. As described above, a drain pipe 65 is provided at the bottom for draining excess pile and water.

[0034] On the inlet 62 side inside the first chamber D, there is an inlet 6
A pair of upper and lower guide bars 66 as workpiece spreading means are provided at approximately the same height as 2. These guide bars 6
A slight gap is formed between the guide bars 6 and 6, and the workpiece 39 passes through this gap while receiving the frictional force of the guide bar 66. This interval can be arbitrarily adjusted depending on the size of the workpiece 39 passing through. Further, a pair of upper and lower guide bars 67 is provided on the partition plate 60 side inside the first chamber D, and while the workpiece 39 passes between these two sets of guide bars 66 and 67,
becomes expanded.

[0035]The two sets of guide bars 66, 67
A rotating brush 68 serving as a pair of upper and lower brushes is supported between them so as to be rotatable at high speed. Further, a pair of upper and lower pressure water injection cylinders 69 are provided near the jet nozzle 70 to spray pressure water onto the rotating brush 68 and the workpiece 3.
It is designed to spray near the border of 9. 2nd room E
is provided with an annular air blowing ring 71, which performs "draining" by blowing compressed air through a jet nozzle 72.

Next, the operation of removing excess pile using the above-mentioned device 61 will be explained, especially the points that are different from the above-mentioned first and second embodiments. As shown in Figures 7 and 8,
The workpiece 39 conveyed from the entrance 62 is guided into the gap between the pair of guide bars 66, and the upper end portions of the workpiece 39 on both sides are expanded outward, so that the workpiece 39 becomes substantially planar. Then, while receiving pressurized water jetted from the jet nozzle 70, it is rubbed by the upper and lower rotating brushes 68. Then, the excess pile attached to the surface of the workpiece 39 is removed in the same manner as in the second embodiment, and falls together with the water. The workpiece 39, which has been spread out to the guide bar 67 on the partition plate 60 side, returns to its original state after passing through the guide bar 67.

Then, in the second chamber E, the workpiece 39 receives compressed air from the jet nozzle 72, is "drained", and is conveyed outward from the outlet 34, as in the first embodiment. In this embodiment, the workpiece 39 can be spread out simply by being held between the pair of upper and lower guide bars 66.
It can be substantially planar. Therefore, with a simple configuration, substantially the same effects as the second embodiment can be achieved, and costs can be further reduced.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and may be configured as follows, for example, without departing from the spirit of the invention. (1) In each of the embodiments described above, the rotating brush 68 was used as the brush, but a brush that performs a reversing operation or a back-and-forth vibration, for example, may also be used. (2) In each of the above embodiments, the pressure water injection ring 12,
13 and the pressure water injection tubes 47, 48, 53, 54, and 69, pressure water is injected, but even if it is not pressurized water, the excess pile can be flushed away. Moreover, even if a rigid nozzle, for example, is used instead of using a flexible nozzle such as the jet nozzle 11, it does not go against the spirit of the present invention. (3) In the first embodiment, the workpiece 6 used had a metal insert 6a embedded inside, but the second embodiment
As in the third embodiment, a workpiece 39 that can be restored can also be used. (4) In the second and third embodiments, the rotating brushes 51, 52, and 68 for scrubbing the workpiece 39 have one upper and lower rotary brush, respectively.
Although only one each is provided, the number may be further increased. By doing so, removal of excess pile can be made even more reliable. (5) In the third embodiment, a pair of upper and lower guide bars 66, 67 are provided, but these guide bars 66, 6
7 may be replaced by a rotatable guide roller. In this case, frictional fatigue of the workpiece 39 due to sliding with the guide bars 66, 67 can be significantly reduced. Therefore, the appearance quality is improved and the product life can be extended. Note that the guide roller may be either a driven type or a driven type. (6) In the third embodiment, in addition to the pair of upper and lower guide bars 66 and 67, as shown in FIG. good. The auxiliary guide 66a may be rod-shaped as shown in the figure, or may be rail-shaped.

[0039]

[Effects of the Invention] According to the method for removing surplus piles according to the first aspect of the present invention, surplus piles attached to workpieces can be reliably removed, the consumption of piles can be minimized, and the environment in the factory can be improved. This has the effect of not causing any deterioration. Moreover, according to the method for removing surplus piles of the second invention, it is possible to remove surplus piles more reliably than in the first invention.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view schematically showing a surplus pile removing device according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a workpiece.

FIG. 3 is a cross-sectional view showing the action of the rotating brush in the brushing zone.

FIG. 4 is a longitudinal sectional view showing a surplus pile removing device according to a second embodiment.

FIG. 5 is a sectional view showing a workpiece used in the second and third embodiments.

FIG. 6 is a sectional view showing a state in which a workpiece is spread out by a guide roller.

FIG. 7 is a longitudinal sectional view showing a surplus pile removing device according to a third embodiment.

FIG. 8 is a partial perspective view showing the vicinity of the guide bar in the third embodiment.

FIG. 9 is a partial perspective view showing another example of the third embodiment.

FIG. 10 is a side view schematically showing a conventional surplus pile removal device.

[Explanation of symbols]

6, 39...Work, 16, 17, 18, 19. 51, 5
2, 68... Rotating brush as a brush, 40... Guide roller as work spreading means, 66... Guide bar as work spreading means.

Claims (2)

[Claims] Claim 1: A method for removing excess pile attached to a workpiece (6, 39) on which flocking has been performed, the method comprising:
6, 39) and move the workpiece (6, 39).
Work after or while spraying water (6, 39)
Brush almost the entire surface (16, 17, 18, 19, 5
1, 52, 68). 2. A method for removing excess pile attached to a workpiece (39) having a bent shape and having flocked hair, the workpiece (39) being moved and the workpiece (39) being
After or while pouring water on the workpiece (39), the workpiece (39) is spread out into a substantially flat shape by the workpiece spreading means (40, 66), and almost the entire surface of the workpiece (39) is covered with the brush (51) from both the upper and lower surfaces. , 52, 68).