JP2017113961A - Coating peeling apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating peeling apparatus capable of reliably peeling and removing a coated film of a vehicle component.SOLUTION: A coating peeling apparatus includes: conveyance means for conveying vehicle components made of synthetic resin having a coated film; and a coated film peeling part 60 the outer periphery of which is rotationally driven while coming into contact with a vehicle component and which peels off the coated film. The coated film peeling part 60 is constituted of: a cut groove roller part 80 for forming cut grooves in the coated film; and a peeling roller 90 that is disposed at the rear part of the cut groove roller 80 in a conveyance direction and peels off the coated film. The cut groove roller part 80 includes a cylindrical cut groove roller 51 in contact with the coated film, and the peeling roller 90 has a cylindrical peeling roller 26 in contact with the coated film. On the cut groove roller 51, multiple groove parts 51B are formed along its peripheral direction and in an axial direction of a rotary drive shaft 53, and on the peeling roller 26, multiple groove parts 26B are formed along an axial direction of a rotary drive shaft 28 and in a peripheral direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a paint peeling apparatus for synthetic resin vehicle parts and the like.

In recent years, there has been a demand for improvement in awareness of environmental problems and resource reuse, and there has been an active movement to recycle synthetic resin products. In the automobile industry, many synthetic resin products are used, and bumpers and side protection malls are examples.
In particular, bumpers composed of thermoplastic resins such as polypropylene resins are used in large quantities because they have been collected from defective products or scrapped vehicles that are considered nonconforming in the manufacturing process. There was a request to do.

  However, the surface of the bumper is coated with a thermosetting resin paint such as polyester urethane, so if you recycle it with some of this paint remaining, the paint pieces will be mixed into the synthetic resin. Therefore, there was a problem that the fluidity was hindered and the cause of molding failure was caused.

  Therefore, the inventor of the present application has proposed a bumper paint removal apparatus of Patent Document 1. The bumper paint removing apparatus of Patent Document 1 removes paint while sandwiching the bumper between a pair of rolls that rotate in reverse to each other.

  In the paint removing device of Patent Document 1, one of the pair of rolls has a higher rotational speed than the other roll, and a groove or a protrusion is provided on the surface of one of the rolls. Can do.

  Also, since one roll has a higher rotational speed than the other roll, the roll grooves or protrusions that enter the cut push the paint in the direction of travel, causing the paint to peel off or scooping up the edge of the cut. Can do. Such a peeling method has no concern about environmental pollution as compared with a method of peeling a coating using a chemical.

However, since the process of making a cut in the paint and the process of peeling the paint or rolling up the edge of the cut are performed simultaneously with one roll, it cannot be peeled off firmly only by this process, In this case, it was necessary to remove the paint by shot blasting. Shot blasting requires an enclosure and a recovery device so that the sprayed particles do not scatter, resulting in an increase in cost. Therefore, a paint peeling apparatus that can solve such problems has been desired.
Japanese Patent Publication No. 2011-224870

  This invention is for solving the above conventional malfunctions, The subject is to provide the coating peeling apparatus which can peel and remove the coating film of vehicle components reliably.

  In order to achieve the above object, in the paint peeling apparatus according to the first aspect of the present invention, a conveying means that conveys a vehicle part made of synthetic resin having a coating film, and a direction perpendicular to the conveying direction of the vehicle part are arranged. And a coating film peeling unit that is driven to rotate while an outer peripheral surface part is in contact with the vehicle part and peels the coating film from the vehicle part, wherein the coating film peeling part comprises: A kerf roller part that forms a kerf in the paint film in contact with the coating film of the vehicle part, and a kerf is formed in the kerf roller part, arranged behind the kerf roller part in the conveying direction. And a peeling roller portion that peels off the coating film in contact with the coated film, and the kerf roller portion is arranged to be orthogonal to the conveying direction of the vehicle part. And formed larger in diameter than the rotational drive shaft portion, While having a cylindrical kerf roller that comes into contact with the coating film, the peeling roller portion includes a rotation drive shaft portion disposed perpendicular to the conveying direction of the vehicle parts, and the rotation drive shaft portion. Is formed in a large diameter and includes a cylindrical peeling roller that comes into contact with the coating film, and the groove roller is provided with a plurality of grooves along the circumferential direction and arranged in the axial direction of the rotary drive shaft portion. On the other hand, the peeling roller is provided with a plurality of grooves along the axial direction of the rotary drive shaft and arranged in the circumferential direction.

  Accordingly, since the paint peeling apparatus according to the first aspect of the present invention includes the transporting means for transporting the vehicle parts and the coating film peeling part for peeling the coating film from the vehicle parts, the vehicle parts are coated by the transporting means. It is conveyed to the film peeling part.

  In addition, the coating film peeling unit is disposed behind the kerf roller unit that contacts the coating film of the vehicle part to form a kerf in the coating film, and the rear of the kerf roller unit in the conveying direction. Since it has a peeling roller part that comes into contact with the coating film on which the groove is formed and peels off the coating film, the conveyed vehicle parts are cut by contacting the coating film while the kerf roller part rotates. Grooves are formed, and then the coating film is peeled by the peeling roller part rotating and contacting the coating film on which the kerfs are formed.

  Specifically, the kerf roller unit includes a kerf roller and the peeling roller unit includes a kerf roller, and the kerf roller is arranged in a plurality along the circumferential direction and in the axial direction of the rotary drive shaft unit. On the other hand, the peeling roller is provided with a plurality of grooves along the axial direction of the rotation drive shaft and arranged in the circumferential direction on the peeling roller. When the groove portion of the kerf roller contacts the coating film of the vehicle part, a plurality of kerfs are formed in the coating film along the conveying direction of the vehicle component. In the peeling roller portion, the coating film provided on the peeling roller The coating film of the vehicle part can be peeled off by scraping the groove portion arranged in a direction perpendicular to the groove or the upper edge portion formed between the adjacent groove portions in contact with the coating film.

  In the paint peeling apparatus according to a second aspect of the present invention, the rotation speeds of the kerf roller and the peeling roller are higher than the conveyance speed of the vehicle parts by the conveyance means.

  Therefore, in the paint peeling apparatus according to the second aspect of the present invention, since the rotation speed of the kerf roller and the peeling roller is higher than the conveyance speed of the vehicle parts by the conveying means, the kerf roller is formed between adjacent groove parts. As the upper edge portion rubs against the coating film, a kerf is formed in the coating film along the conveying direction.

  In the peeling roller, the groove formed so as to be orthogonal to the conveying direction or the upper edge between adjacent grooves quickly scratches the coating film in which the groove is formed in the direction orthogonal to the groove. Can be peeled off.

  In the paint peeling apparatus according to the third aspect of the present invention, each of the groove portions is formed in a substantially V-shaped cross section and arranged in parallel so that the upper edge portions are in contact with each other.

  Therefore, in the paint peeling apparatus according to the third aspect of the invention, the groove portions of the kerf roller and the peeling roller are formed in a substantially V-shaped cross section, and the circumferential edge and the axial direction are formed by the upper edge portions of the groove portions adjacent to each other. A large number of inverted V-shaped protrusions are formed.

  Therefore, the kerf roller can be rubbed with the coating film and cut into a V-shaped cross section. In the peeling roller, the V-shaped groove part formed so as to be orthogonal to the conveying direction, or the inverted V-shaped upper edge part between adjacent groove parts, the coating film in which the kerf is formed is a kerf. It can be peeled off by scratching in the orthogonal direction.

  In the paint peeling apparatus according to the fourth aspect of the present invention, the transport unit is configured by a transport roller unit capable of transporting the vehicle component, and the transport roller unit is a plan view with respect to the transport direction of the vehicle component. And a cylindrical conveyance roller formed in a diameter larger than the shaft part, and the conveyance rollers are provided to face each other in the vertical direction. The vehicle parts are sandwiched from above and below to be conveyed by rotating in opposite directions.

  In the paint peeling apparatus according to the fifth aspect of the invention, the kerf roller portion and the peeling roller portion are respectively provided on the upper surface side of the vehicle component, and a transport roller is provided on the lower surface side of the vehicle component. The kerf roller portion and the peeling roller portion are provided with urging means, and are configured to come into contact with the coating surface of the vehicle part while applying a predetermined urging force.

  In the paint peeling apparatus according to the sixth aspect of the present invention, the paint peeling apparatus includes a press unit that rolls the vehicle part into a plate shape and transports it to the coating film peeling unit. Is composed of a pair of press roller portions arranged above and below, and the vehicle part is rolled by being sandwiched between the pair of press roller portions.

  Therefore, the paint peeling apparatus according to the invention of claim 6 includes a press part that rolls the vehicle part into a plate shape and carries it out to the coating film peeling part. Vehicle parts are continuously conveyed to the coating film peeling part.

  In the paint peeling apparatus according to the seventh aspect of the invention, the vehicle part is a bumper of an automobile. In general, a bumper of an automobile is formed by coating the surface of a synthetic resin, and the thickness of the coating varies depending on the vehicle type.

  In the paint peeling apparatus according to the first and seventh aspects of the present invention, a plurality of kerfs are formed in the coating film along the transport direction of the vehicle parts at the kerf roller portion while the vehicle parts are transported by the transport means. Then, in the peeling roller part, the groove part arranged in the direction orthogonal to the cut groove of the coating film, or the upper edge part formed between the adjacent groove parts is scraped in contact with the coating film. Since the coating film on the part can be peeled off, the coating film on the vehicle part can be peeled off and removed reliably.

  In the coating peeling apparatus according to the second aspect of the present invention, in the kerf roller portion, the upper edge portion formed between adjacent groove portions of the kerf roller is rubbed against the coating film, thereby conveying the coating film to the coating film. In the peeling roller part, the groove part formed so as to be orthogonal to the conveying direction of the peeling roller, or the upper edge part between adjacent groove parts is a coating film in which the groove is formed. Since it can be quickly scratched and peeled in a direction orthogonal to the kerf, the coating film of the vehicle part can be peeled and removed more reliably.

  In the paint peeling apparatus according to the third aspect of the invention, the groove portions of the kerf roller and the peeling roller are formed in a V shape, and the upper edge portion between adjacent groove portions is sharpened in an inverted V shape. Since it is formed, the coating film can be surely peeled and removed without being affected by the thickness dimension or hardness of the coating film which varies depending on the type of vehicle parts.

  In the paint peeling apparatus according to the fourth aspect of the present invention, two transport rollers are provided opposite to each other in the vertical direction so that the vehicle parts are sandwiched from above and below by rotating in opposite directions. Therefore, even when a load is applied along the conveying direction by the rotational drive of the kerf roller or peeling roller, the vehicle parts can be kept at a constant speed without slipping, and the desired peeling effect can be maintained. Can be obtained.

  In the paint peeling device according to the fifth aspect of the invention, the kerf roller portion and the peeling roller portion are each provided on the upper surface side of the vehicle component, and the conveyance roller is provided on the lower surface side of the vehicle component. The coating film can be peeled and removed more reliably by rotating the kerf roller and the peeling roller in contact with the coating film from the upper surface side while supporting the lower surface side with the transport roller.

  Moreover, since the peeling roller part is provided with an urging means and is configured to contact the coating surface of the vehicle part while applying a predetermined urging force, the peeling roller rotates against the coating surface. It can be made to contact firmly and a coating film can be peeled and removed more reliably.

  In the paint peeling apparatus according to the sixth aspect of the invention, since the vehicle parts pressed into a plate shape by the press part are continuously conveyed to the paint film peeling part, the kerf of the paint film peeling part A roller and a peeling roller can touch a coating film firmly and can peel and remove a coating film more reliably.

  In the paint peeling apparatus according to the seventh aspect of the invention, the paint on the bumper of the automobile can be peeled off reliably and quickly.

It is a side view showing the whole paint peeling device concerning an embodiment of the present invention. It is a perspective view of the paint peeling apparatus. The coating-film peeling part of the same coating peeling apparatus is shown, (a) is a top view, (b) is a side view. The kerf roller used for the coating peeling apparatus is shown, (a) is a schematic view in radial direction, and (b) is an enlarged view of a portion B in (a). The peeling roller used for the same coating peeling apparatus is shown, (a) is a schematic diagram of an axial view, (b) is an enlarged view of B part in (a).

  Hereinafter, a paint stripping device for a vehicle part according to an embodiment of the present invention will be described with reference to the drawings. First, the overall structure of the paint peeling apparatus 10 will be described. FIG. 1 is a side view showing the entire paint stripping apparatus according to an embodiment of the present invention, and FIG. 2 is a perspective view of the paint stripping apparatus for vehicle parts.

  As shown in FIGS. 1 and 2, a paint peeling apparatus 10 according to an embodiment of the present invention includes a conveying unit that conveys a bumper P of an automobile that is a vehicle part made of synthetic resin having a coating film, and rolls the bumper P. The coating part peeling part 60 which is provided with the component rolling part 50 to perform and the axial part arrange | positioned orthogonally to the conveyance direction of the bumper P, an outer peripheral surface part is rotationally driven, contacting the bumper P, and peels a coating film from the bumper P And a brush peeling unit 70 for removing the remaining coating film of the bumper P from the coating film peeling unit 60 with a brush.

  The paint peeling apparatus 10 includes frames 23, 24, and 25. The frames 23, 24, and 25 are detachably connected to each other by bolts and nuts. The component rolling unit 50 is fixed to the frame 23, the coating film peeling unit 60 is fixed to the frame 24, and the brush peeling unit 70 is fixed to the frame 25. In the present embodiment, the bumper P is thrown into the paint peeling apparatus 10 with the surface having the coating film as the upper side.

  The transport means includes transport roller portions 13a, 13b, and 56 that can transport the bumper P, and the transport roller portions 13a, 13b, and 56 are disposed in a direction orthogonal to the transport direction of the bumper P in a plan view. Shaft portions 19, 20, 38, 39, and cylindrical transport rollers 16, 17, 35, 36 that are formed larger in diameter than the shaft portions, and include transport rollers 16, 17, transport rollers 35, 36. Are provided so as to face each other in the vertical direction, and are configured to sandwich the bumper P from above and below by rotating in opposite directions and to convey in the direction indicated by the straight arrow in FIG.

  In the present embodiment, the transport rollers 16a, 16b, 17a, 17b, 35, and 36 are configured to be rotationally driven at a peripheral speed of 2 m / min. That is, the transport speed of the bumper P in this embodiment is 2 m / min.

  Among these, the conveyance rollers 16a and 16b located on the upper side of the component rolling unit 50 have an operation of rolling the bumper P in addition to the operation as a conveyance means for conveying the bumper P, and will be described in detail below.

The component rolling part 50 of the paint peeling apparatus 10 according to the present embodiment will be described.
As shown in FIG. 1, the component rolling unit 50 rolls the bumper P into a plate shape and carries it out to the coating film peeling unit 60. The component rolling unit 50 includes press units 13a and 13b, sensor units 14a and 14b, and control units 15a and 15b.

  The press parts 13a and 13b of the component rolling part 50 are respectively composed of a pair of rollers 16a and 17a, 16b and 17b arranged above and below, and the bumper P is sandwiched between the pair of rollers 16a and 17a, 16b and 17b. Is rolled.

  As shown in FIG. 1, the sensor parts 14a and 14b detect a bumper P to be rolled. The control units 15a and 15b control the press units 13a and 13b to roll the bumper P when the sensor units 14a and 14b detect the bumper P.

  As shown in FIG. 1, the press parts 13a and 13b include upper rollers 16a and 16b, lower rollers 17a and 17b, and hydraulic piston parts 18a and 18b. The upper rollers 16a and 16b and the lower rollers 17a and 17b are configured as cylindrical members having a diameter of 240 mm, for example. In this example, the upper rollers 16a and 16b and the lower rollers 17a and 17b are rolled into a plate shape with the bumper P interposed therebetween.

  As shown in FIG. 1, the upper rollers 16a and 16b are rotatably held by shaft members 19a and 19b, and the lower rollers 17a and 17b are rotatably held by shaft members 20a and 20b. The upper rollers 16a and 16b and the lower rollers 17a and 17b are opposed to each other in the vertical direction with a predetermined distance, for example, 200 mm apart, in the initial state so as to sandwich the bumper P. The shaft members 20a, 20b on the lower rollers 17a, 17b are fixed to the frame 23, and the shaft members 19a, 19b on the upper rollers 16a, 16b are positioned along the vertical direction by the hydraulic piston portions 18a, 18b. It can be changed. With this configuration, the distance between the lower rollers 17a and 17b and the upper rollers 16a and 16b can be changed.

  Upper roller 16a, 16b and lower roller 17a, 17b are comprised from the cylindrical base material and the surface layer which covers the surface of this base material. The base materials of the upper rollers 16a and 16b and the lower rollers 17a and 17b are made of, for example, carbon steel, and the surface layers of the upper rollers 16a and 16b and the lower rollers 17a and 17b are made of, for example, urethane rubber having a hardness of 90. The

  As shown in FIG. 2, the shaft members 19 a and 19 b and the shaft members 20 a and 20 b of the upper rollers 16 a and 16 b and the lower rollers 17 a and 17 b according to the present embodiment are respectively connected to the motor unit 44. Thereby, upper roller 16a, 16b and lower roller 17a, 17b are comprised so that it may drive with the peripheral speed of 2 m / min.

  As shown in FIGS. 1 and 2, hydraulic piston portions 18a and 18b are connected to the shaft members 19a and 19b of the upper rollers 16a and 16b, respectively. The hydraulic piston portions 18a and 18b move the upper rollers 16a and 16b along the vertical direction, thereby changing the distance between the upper rollers 16a and 16b with respect to the lower rollers 17a and 17b.

  The sensor units 14a and 14b are provided above the upper rollers 16a and 16b. When the sensor parts 14a and 14b detect the bumper P, the control parts 15a and 15b operate the hydraulic piston parts 18a and 18b. Thereby, upper roller 16a, 16b is brought close to lower roller 17a, 17b, and bumper P is rolled. In the present embodiment, the distance between the upper rollers 16a and 16b and the lower rollers 17a and 17b is 5 mm at the closest point.

As shown in FIG. 1, the sensor parts 14a and 14b are provided for each of the press parts 13a and 13b, and the control parts 15a and 15b are configured to be able to control the press parts 13a and 13b independently.
The sensor units 14a and 14b can use photoelectric sensors. Each sensor unit 14a, 14b has a light projecting unit and a light receiving unit, and detects the bumper P by detecting that the light emitted from the light projecting unit is blocked by the bumper P.

  A synthetic resin bumper P having a coating film is inserted between the upper roller 16a and the lower roller 17a spaced apart from each other by a distance of 200 mm from the component rolling unit 50 side with the coating film surface facing upward. At this time, the sensor unit 14a provided above the upper roller 16a detects the bumper P, the control unit 15a activates the hydraulic piston unit 18a, causes the upper roller 16a to approach the lower roller 17a, and the upper roller 16a. To roll bumper P.

  When the upper roller 16a and the lower roller 17a are rotationally driven, the rolled bumper P is conveyed to the press unit 13b. Subsequently, the bumper P conveyed by the sensor unit 14b provided above the upper roller 16b is detected, and the control unit 15b operates the hydraulic piston unit 18b to bring the upper roller 16b closer to the lower roller 17b, The bumper P is rolled with the roller 16b. The rolled bumper P is conveyed to the coating film peeling unit 60.

Next, the coating film peeling part 60 of the coating peeling apparatus 10 which concerns on this Embodiment is demonstrated in detail with reference to drawings.
As shown in FIG. 1, the coating film peeling unit 60 is in contact with the coating film of the bumper P to form a kerf in the coating film, and the bumper P conveyance direction rear side of the kerf roller unit 80. And a peeling roller part 90 that comes into contact with the coating film on which the kerf is formed in the kerf roller part 80 and peels the coating film.

  FIG. 3 shows the coating film peeling part 60 of the coating peeling apparatus, (a) is a plan view, (b) is a side view, and FIG. 4 shows a kerf roller used in the coating peeling apparatus. (A) is a schematic diagram of a radial view, and (b) is an enlarged view of a portion B in (a).

Hereinafter, the kerf roller portion 80 of the coating peeling apparatus 10 according to the present embodiment will be described in detail with reference to the drawings.
As shown in FIGS. 1 and 3, the kerf roller portion 80 is formed to have a diameter larger than that of the rotational drive shaft portion 53 and the rotational drive shaft portion 53 disposed orthogonal to the conveyance direction of the bumper P, A cylindrical kerf roller 51 that contacts the coating film is provided.

  As shown in FIG. 3B, the kerf roller 51 in the present embodiment is provided on the upper surface side of the bumper P, and the lower surface side of the bumper P is in a direction orthogonal to the conveying direction of the bumper P. A transport roller 55 having a shaft portion 54 is disposed.

  Further, as shown in FIG. 1, a sensor unit 14c, a control unit 15c, and a hydraulic piston unit 18c are provided in the vicinity of the kerf roller 51, and have the same configuration as the press units 13a and 13b described above. The base material of the transport roller 55 is made of, for example, carbon steel, and the surface layer is made of, for example, urethane rubber having a hardness of 90.

  As shown in FIG. 4, the kerf roller 51 includes a carbon steel base material, and the surface of the base material is subjected to hard chrome plating, and the diameter dimension D1 is, for example, 210 mm. The surface of the kerf roller 51 is provided with a plurality of groove parts 51 </ b> B that are arranged in the circumferential direction and in the axial direction of the rotary drive shaft part 53.

The groove portions 51B are each formed in a substantially V-shaped cross section and are arranged in parallel so that the upper edge portions 51A are in contact with each other, and are formed in an overall sawtooth shape.
The upper edge portion 51A is formed in parallel over the entire axial direction of the kerf roller 51 with an interval dimension p1 of about 5 mm along the axial direction, and each upper edge portion 51A has a height dimension h1. Is also formed to be about 5 mm. That is, on the surface of the kerf roller 51, a plurality of groove portions 51B and upper edge portions 51A along the conveyance direction of the bumper P are alternately arranged in parallel.

  In the present embodiment, the transport roller 55 is pivotally supported on the frame 24 by the shaft member 54. The shaft portion 54 of the transport roller 55 is connected to the shaft members 20a and 20b of the lower rollers 17a and 17b of the press portions 13a and 13b via pulleys and chains (not shown), and is driven by the motor portion 44. In response to the transmission of force, the transport roller 55 is configured to be driven at a peripheral speed of 2 m / min.

  On the other hand, the kerf roller 51 is connected by a pulley and a chain (not shown) so that the driving force of the motor unit 45 can be transmitted, and the rotation speed of the kerf roller 51 is determined by the transport rollers 16a, 16b, 17a, 17b. , 35 and 36 and the conveying roller 55 is driven at a peripheral speed of 2.4 m / min, which is larger than the conveying speed of the bumper P.

  The kerf roller 51 and the transport roller 55 are arranged in a state separated from each other by 200 mm in the vertical direction, and the sensor unit 14c provided in the vicinity of the kerf roller 51 detects the bumper P transported from the press unit 13b. Then, the control unit 15 c operates the hydraulic piston unit 18 c to bring the kerf roller 51 closer to the transport roller 55, and the bumper P is rolled by the kerf roller 51 and the transport roller 55 by hydraulic pressure.

  At this time, a plurality of upper edge portions 51A formed between the groove portion 51B and the groove portion 51B are provided on the surface of the kerf roller 51 at intervals of 5 mm along the axial direction. The groove portion 51B of the kerf roller 51 and the upper edge portion 51A are pressed against the coating film positioned on the upper surface side of the bumper P while rotating, so that the coating film on the bumper P is cut along the transport direction. A groove is formed.

  Furthermore, since the kerf roller 51 is driven at a peripheral speed of 2.4 m / min, which is higher than the conveyance speed of the bumper P by 2 m / min, the groove part 51B of the kerf roller 51 and the coating film of the bumper P When the upper edge portion 51A and the coating film rub against each other, the coating film is scraped, and a kerf can be formed efficiently and reliably.

Next, the peeling roller part 90 of the paint peeling apparatus 10 according to the present embodiment will be described in detail with reference to the drawings.
The bumper P in which the kerf is formed in the coating film along the transport direction in the kerf roller unit 80 is transported to the peeling roller unit 90.
Four peeling roller portions 90 are provided along the conveyance direction of the bumper P. The rotation driving shaft portion 28 is disposed perpendicular to the conveyance direction of the bumper P, and has a diameter larger than that of the rotation driving shaft portion 28. And a cylindrical peeling roller 26 that is in contact with the coating film. Further, the present embodiment is configured to include a lower conveying roller 27 that is a conveying means, a spring portion 30, and a load adjusting portion 31.

  FIG. 3 shows the coating film peeling part 60 of the coating peeling apparatus, (a) is a plan view, (b) is a side view, and FIG. 5 shows a peeling roller used in the coating peeling apparatus. (A) is a schematic diagram of an axial direction view, (b) is an enlarged view of the B section in (a).

  As shown in FIG. 3, the peeling roller unit 90 includes a rotation driving shaft portion 28 made of a shaft member and a peeling roller 26 formed with a diameter larger than that of the rotation driving shaft portion 28. The dimension of the peeling roller 26 in the axial direction is substantially the same as the width dimension of the bumper P in the transport direction.

  As shown in FIG. 4, the peeling roller 26 is a cylindrical carbon steel member having a diameter D2 of, for example, 210 mm, and has a hard chrome plating on the surface. As shown in FIG. 4, the surface of the peeling roller 26 according to the present embodiment is provided with a plurality of groove portions 26 </ b> B that are arranged in the circumferential direction along the axial direction of the rotation drive shaft portion 28.

Each of the groove portions 26B is formed in a substantially V-shaped cross section, and is arranged in parallel so that the upper edge portions 26A are in contact with each other, and is formed in an overall sawtooth shape.
The upper edge portion 26A is formed in parallel across the entire axial direction of the peeling roller 26 with an interval of 5 mm along the axial direction. That is, on the surface of the peeling roller 26, a plurality of groove portions 26 </ b> B and an upper edge portion 26 </ b> A that are formed along a direction orthogonal to the conveyance direction of the bumper P are arranged in parallel.

  Here, in the present embodiment, the height dimension h2 of the upper edge portion 26A is 5 mm, and the interval dimension p of each upper edge portion 26A is 5 mm.

  Therefore, the coating film of the bumper P in which the kerf is formed in the coating film along the conveyance direction in the kerf roller unit 80 in advance is formed in the peeling roller unit 90 along the direction orthogonal to the conveyance direction of the bumper P. The coating film is peeled off by scratching by the groove 26B and the upper edge 26B formed between the grooves 26B.

  The transport roller 27 serving as a transport means is connected to a driving force of the motor unit 44 through a shaft portion 54 by a pulley and a chain (not shown), and is similar to the transport rollers 17a, 17b, and 55. It is rotationally driven at a peripheral speed of 2 m / min.

  On the other hand, the peeling roller 26 is connected so that the rotational drive shaft portion 28 can transmit the driving force of a motor portion (not shown), and the rotation speed of the peeling roller 26 is a bumper by a conveying roller 27 as a conveying means. It is configured to be driven at a peripheral speed of 2.4 m / min, which is larger than 2 m / min.

  As shown in FIGS. 1 and 3A and 3B, the lower transport roller 27 is provided with a shaft portion 29 in a direction perpendicular to the transport direction below the peeling roller 26.

  Further, both end portions of the rotation drive shaft portion 28 of the peeling roller 26 are provided with bearing portions that are provided so as to be movable in the vertical direction, and the upper end portion of the bearing portion is below, that is, the coating direction of the bumper P. A spring portion 30 is provided along the vertical direction. Therefore, the peeling roller 26 contacts the coating film of the bumper P while applying a predetermined urging force.

  Furthermore, a load adjusting unit 31 that can adjust the load of the peeling roller 26 by changing the length of the spring unit 30 is provided.

  The transport roller 27 is made of carbon steel as a base material, and includes a urethane rubber coating having a hardness of 90 on the surface of the base material, and is formed in a cylindrical shape having a diameter of 240 mm, for example. Further, in the present embodiment, the transport roller 27 is pivotally supported on the frame 24 by a shaft member 29 and is chain-driven by a single motor.

  In this embodiment, the peripheral speed (2.4 m / min) of the peeling roller 26 is set larger than the peripheral speed (2 m / min) of the transport rollers 16a, 16b, 17a, 17b, 27, 35, 36, and 55. Yes. These peripheral speeds can be appropriately changed depending on the material and size of the bumper P that peels the coating film, the material of the coating film, the environmental temperature, and the like.

  According to the coating film peeling unit 60, as the first treatment, in the kerf roller unit 80, the upper edge part 51A formed between the groove part 51B and the groove part 51B on the surface of the kerf roller 51 contacts the bumper P coating film. Then, after a plurality of kerfs are formed in the coating film along the conveyance direction of the bumper P, as a second treatment, in the peeling roller section 90, a groove section arranged in a direction orthogonal to the kerfs of the coating film. 26B or the upper edge portion 26A formed between adjacent groove portions 26B abuts against the coating film and scrapes off the coating film of the bumper P, so that the coating film of the bumper P is surely removed. Can be removed.

  In the peeling roller part 90, it is formed from the groove part 26B and the adjacent groove part 26B on the coating film of the bumper P in which the kerf is formed in advance in the kerf roller part 80 due to the difference in the conveyance speed and the peripheral speed of the peeling roller 26. Since the upper edge portion 26A comes into contact with the kerf formed by the kerf roller 51, it can be peeled off quickly by scratching in a direction perpendicular to the kerf, so that the bumper P can be applied reliably and efficiently. The film can be peeled off.

  Furthermore, according to the coating film peeling part 60 which concerns on this embodiment, the minimum clearance gap dimension between a peeling roller and the conveyance surface of the said conveyance means can be changed, and it can respond to the bumper P of a different thickness dimension.

  And according to the coating film peeling part 60, since a peeling roller is always pressed with the predetermined force on the surface of a vehicle component with a spring member, regardless of the surface shape of the bumper P, the coating film on the surface is peeled off with high efficiency. can do.

  Next, the brush peeling part 70 of the paint peeling apparatus 10 which concerns on this embodiment is demonstrated. The bumper P from which the coating film has been peeled off at the coating film peeling unit 60 is conveyed to the brush peeling unit 70 and further polished with a brush. As shown in FIG. 1, the brush peeling unit 70 includes plate-like members 32 and 33 that support the bumper P, brushes 34 a, 34 b, 34 c, and 34 d that polish the upper surface of the bumper P, the upper roller 35, and the lower side A roller 36. The upper roller 35 and the lower roller 36 are respectively arranged between the plate-like member 32 and the plate-like member 33, the brush 34b and the brush 34c, and are arranged to face each other in a vertical direction with a predetermined interval so as to sandwich the bumper P. The

  The brushes 34a, 34b, 34c, and 34d are formed in a cylindrical shape as a whole, and are configured by flocking a silica sand-containing nylon wire to a base material. The brushes 34a, 34b, 34c, and 34d include shaft members 37a, 37b, 37c, and 37d that are orthogonal to the conveyance direction of the bumper P.

The upper roller 35 and the lower roller 36 are formed in a cylindrical shape having a diameter of 240 mm, for example. The upper roller 35 and the lower roller 36 include shaft members 38 and 39 that are orthogonal to the transport direction of the bumper P. Here, the shaft member 39 is fixed in the vertical direction, while the shaft member 38 is configured to be movable in the vertical direction.
Further, the shaft members 37a, 37b, 37c, and 37d of the brushes 34a, 34b, 34c, and 34d are respectively connected to a motor unit (not shown) so as to rotate in the reverse direction with respect to the conveying direction of the bumper P. It is configured.

  Further, as shown in FIG. 1, spring portions 40a, 40b, 40c, and 40d are connected to the shaft members 37a, 37b, 37c, and 37d of the brushes 34a, 34b, 34c, and 34d, and the brushes 34a, 34b, 34c, and It is comprised so that 34d may be pressed below.

  The spring portions 40a, 40b, 40c, and 40d are connected to the load adjusting portions 41a, 41b, 41c, and 41d, respectively, and can adjust the load on the brushes 34a, 34b, 34c, and 34d. In the present embodiment, the distance between the brushes 34a, 34b, 34c, 34d and the plate-like members 32, 33 is 5 mm at the closest point.

Further, the upper roller 35 and the lower roller 36 are made of urethane rubber having a hardness of 90 as a whole. Further, the shaft members 38 and 39 of the upper roller 35 and the lower roller 36 are respectively connected to a motor unit (not shown) and configured to rotate at a peripheral speed of 2 m / min. Further, a spring portion 43 is connected to the shaft member 38 of the upper roller 35 so as to press the upper roller 35 downward.
The spring portion 43 is connected to the load adjusting portion 42 and configured to be able to adjust the load on the upper roller 35. The distance between the upper roller 35 and the lower roller 36 is 5 mm at the closest position.

The bumper P from which the coating film has been peeled off by the coating film peeling unit 60 is conveyed from the peeling roller unit 26d and the conveying roller 27d to the brush 34a constituting the brush peeling unit 70 while the lower surface is supported by the plate-like member 32. The
At this time, since the brush 34a according to the present embodiment has a silica sand-containing nylon wire and contacts the coating surface of the bumper P while rotating, the bumper P is polished and cannot be completely peeled off by the coating film peeling portion 60. The coating film of the bumper P can be effectively removed.

  As described above, according to the paint peeling apparatus 10 according to the present embodiment, the component peeling unit 50 that rolls the bumper P, the coating film peeling unit 60, and the brush peeling unit 70 are provided. In paint peeling treatment of synthetic resin vehicle parts, the coating film can be peeled and removed continuously with high efficiency.

  In the above-described embodiment, the case where the paint stripping device strips the bumper coating as a vehicle component has been described. However, the coating stripping device may strip the coating of another vehicle component such as a synthetic resin panel.

  The present invention is widely applicable to paint peeling devices and has industrial applicability.

10: coating peeling device 80: kerf roller unit 51: kerf roller 90: peeling roller unit 26: peeling roller 27, 55: transport roller 28: shaft member (rotary drive shaft unit)
29: Shaft member 30: Spring part 31: Load adjusting part 50: Parts rolling part 60: Paint film peeling part 70: Brush peeling part

Claims (7)

The vehicle includes a conveying unit that conveys a vehicle part made of synthetic resin having a coating film, and a shaft portion that is arranged orthogonal to a conveyance direction of the vehicle part, and an outer periphery thereof is rotationally driven while being in contact with the vehicle part. A paint peeling device comprising a coating film peeling part for peeling the coating film from a component,
The coating film peeling unit is disposed behind the kerf roller unit that contacts the coating film of the vehicle part to form a kerf in the coating film, and the rear of the kerf roller unit in the conveying direction, and the kerf roller It is composed of a peeling roller part that comes into contact with the coating film in which a kerf is formed in the part and peels the coating film,
The kerf roller portion includes a rotation drive shaft portion disposed perpendicular to the conveying direction of the vehicle parts, and a cylindrical cut portion that is formed larger in diameter than the rotation drive shaft portion and contacts the coating film. While the groove roller is provided, the peeling roller portion is formed with a rotation drive shaft portion disposed perpendicular to the conveyance direction of the vehicle parts, and formed with a diameter larger than the rotation drive shaft portion, and the coating film It has a cylindrical peeling roller that comes into contact with
The kerf roller is provided with a plurality of grooves along the circumferential direction and in the axial direction of the rotary drive shaft, while the peeling roller is provided with a circumference along the axial direction of the rotary drive shaft. A coating peeling apparatus characterized in that a plurality of grooves are provided in the direction.   The coating peeling apparatus according to claim 1, wherein rotation speeds of the kerf roller and the peeling roller are higher than a conveyance speed of the vehicle parts by the conveyance unit.   3. The paint peeling apparatus according to claim 1, wherein the groove portions are formed in a substantially V-shaped cross section and are arranged in parallel so that the upper edge portions are in contact with each other.   The transport means includes a transport roller unit that can transport the vehicle component, and the transport roller unit includes a shaft portion disposed in a direction orthogonal to the transport direction of the vehicle component in a plan view, and the shaft. And a cylindrical transport roller that is formed to have a diameter larger than that of the portion, and the transport rollers are provided to face each other in the vertical direction, and rotate the vehicle parts from above and below by rotating in opposite directions. The paint peeling apparatus according to claim 1, wherein the paint peeling apparatus is configured to be sandwiched and conveyed.   Each of the kerf roller portion and the peeling roller portion is provided on the upper surface side of the vehicle component, a conveyance roller is provided on the lower surface side of the vehicle component, and the peeling roller portion includes an urging means, 3. The paint peeling apparatus according to claim 2, wherein the paint peeling apparatus is configured to contact a coating surface of a vehicle part while applying a predetermined urging force.   The paint peeling apparatus includes a component rolling unit that rolls the vehicle component into a plate shape and transports the vehicle component to the coating film peeling unit, and the component rolling unit includes a pair of upper and lower rollers. The paint stripping device according to any one of claims 1 to 5, wherein the vehicle component is rolled by being sandwiched between the pair of rollers.   The paint peeling apparatus according to any one of claims 1 to 6, wherein the vehicle component is a bumper of an automobile.