CN221133436U

CN221133436U - Roller press for removing foreign matter

Info

Publication number: CN221133436U
Application number: CN202321933167.4U
Authority: CN
Inventors: 长田康
Original assignee: Changtian Co ltd
Current assignee: Changtian Co ltd
Priority date: 2023-07-21
Filing date: 2023-07-21
Publication date: 2024-06-14
Anticipated expiration: 2033-07-21

Abstract

The present embodiment can easily detect foreign matters to be removed, confirm the removal result, and increase the removal efficiency, and further easily determine the long life of the roller, the maintenance time such as cleaning or replacement, and the like. The roller press (10) for removing foreign matter has a shaft portion (12) rotatably supporting a roller (1) for removing foreign matter by adhering thereto, a frame portion (14) supporting both ends of the shaft portion (12), a grip portion (16) coupled to the frame portion (14), and a lamp portion (20) attached to the frame portion (14). The lamp unit (20) is provided on the grip unit (16) side of the shaft unit (12), irradiates both the surface of the roller (1) and the surface of the object from which the foreign matter should be removed, generates scattered light reflected by the surface of the foreign matter and shadows of the foreign matter, and irradiates at least a part of the surface of the object with light in a range equal to or greater than the entire width of the roller (1).

Description

Roller press for removing foreign matter

Technical Field

The present invention relates to an improvement of a hand roller press for removing foreign matters, for example, to remove fine foreign matters such as dust or dust existing on surfaces of objects such as floors and walls of work sites such as construction sites and factories, equipment such as machines and tools, or floors and walls of houses, etc., in addition to products in which foreign matters should not adhere to floors and walls of clean rooms such as manufacturing sites of semiconductor devices, etc., and to easily perform detection of foreign matters to be removed, confirmation of removal results, efficiency of removal, and further to easily perform long life of rollers, and judgment of maintenance time such as cleaning or replacement.

Background

Foreign matter such as dust or dust present on the surface of an object to be cleaned or the like is desired to be removed reliably depending on, for example, a clean room as a manufacturing site of a semiconductor product or an environment such as the semiconductor product itself. In this case, a roller press machine that rotatably supports a roller around which an adhesive tape is wound is used, and this roller press machine is used for: the foreign matter is removed by rotating the roller on the surface of the object.

In this case, the foreign matter removal operation performed by the roller press is often performed by rotating the roller press with respect to the target surface on which the foreign matter is considered to be likely to exist without particularly confirming or recognizing the presence of the foreign matter, depending on the situation. However, it is actually difficult to visually find fine dust or dust in μm under indoor illumination. As a result, if the roller press is turned unnecessarily to a position where no foreign matter is present, the life of the adhesive tape wound as a roller may be shortened.

In this case, in addition to a hand roller press for removing foreign matter that is operated by an operator holding the machine by hand, there has been proposed a method of detecting foreign matter by irradiating a lamp onto a target surface (for example, refer to patent document 1). However, if the detection and removal of the foreign matter are performed as separate operations, the worker needs to arrange the roller press to the position or the like in which the foreign matter detected by the lamp is stored, and efficient removal cannot be expected. As a result, if the roller is turned wastefully, the usable period of the adhesive tape may be shortened. Or even when the light is irradiated by the lamp and the removal work is performed simultaneously, there is a problem that a significant burden is imposed on the operator in the case where the different 2 works of irradiation and removal are performed simultaneously.

Further, although a lamp is mounted to a suction head of a vacuum cleaner or the like (for example, refer to patent document 2), if only a part of the surface of the object is irradiated, the irradiation direction is not changed, and omission occurs in detection of foreign matter, and as a result, the foreign matter cannot be removed efficiently as well.

In particular, in the conventional technique of detecting a foreign object by irradiating light, only irradiation of light to the surface to be removed is considered, but there are problems in this regard as follows: it is not possible to confirm whether or not foreign matter can be removed reliably by the roller, and it is not possible to confirm the adhesion state of foreign matter in μm to the roller, and it is not possible to appropriately judge maintenance timing such as cleaning or replacement of the roller. In the case of a vacuum cleaner that performs suction only, it is not said for the moment that the roller using the adhesive tape that needs to be cleaned or replaced relatively frequently is important from the viewpoint of saving resources.

Further, even when light is irradiated onto the surface of the object, it is required to ensure light that enables the foreign matter to be reliably detected under indoor illumination, and at the same time, to improve the working efficiency, it is also required that no more light than necessary enters the eyes of the operator and is not in a state such as glare. In particular, in the case where the object is a product such as an electronic component, it is necessary to determine whether the object detected by irradiation with light is a foreign object or a flaw or a concavity and convexity, and in the case where the object is a flaw or a concavity and convexity, it is necessary to determine that the object is a defective product as a result of inspection.

[ Prior Art literature ]

[ Patent literature ]

Japanese patent application laid-open No. 2012-134093 (patent document 1).

Japanese patent application laid-open No. 54-183162 (Kokai) No. 2.

Disclosure of utility model

[ Problem ] to be solved by the solution ]

The problem to be solved by the proposal is as follows: in view of the above-described problems, there is provided a roller press for removing foreign matter, which can easily detect foreign matter to be removed, confirm the removal result, and increase the removal efficiency, and further easily perform a long life of a roller, and a judgment of maintenance time such as cleaning or replacement.

[ Solution ] to solve the problem

(1. Rolling machine for removing foreign matters)

As a1 st means for solving the above-described problems, the present invention provides a roller press for removing foreign matters, comprising: a shaft portion rotatably supporting a roller for removing foreign matter by adhering thereto; frame parts supporting both ends of the shaft part; and a grip portion coupled to the frame portion, wherein the grip portion further includes a lamp portion attached to the frame portion, the lamp portion being provided on a grip portion side of the shaft portion, both a surface of the roller and a surface of the object to be subjected to foreign matter removal being irradiated with the lamp portion, a shadow of the foreign matter and scattered light reflected by the surface of the foreign matter being generated, and at least a part of the surface of the object being irradiated with the light in a range equal to or greater than an entire width of the roller.

(2. Incidence angle of light with respect to the object surface)

Further, as a 2 nd means for solving the above-mentioned problems, the present invention provides a roller press for removing foreign matter, wherein in the 1 st means, the lamp portion irradiates light onto the object surface at an incident angle ranging from 0 ° to 30 °.

(3. Human body induction sensor)

As a 3 rd means for solving the above-mentioned problems, the present invention provides a roller press for removing foreign matter, wherein in the 1 st means, a human body induction sensor is provided in the grip portion, the human body induction sensor is connected to the lamp portion, and the lamp portion irradiates light only when contact of a person with the grip portion is monitored by the human body induction sensor.

As a 4 th means for solving the above-mentioned problems, the present invention provides a roller press for removing foreign matter, characterized in that in the 2 nd means, a human body induction sensor is provided in the grip portion, the human body induction sensor is connected to the lamp portion, and the lamp portion irradiates light only when contact of a person with the grip portion is monitored by the human body induction sensor.

(4. Angle adjusting part)

As a 5 th means for solving the above-mentioned problems, the present invention provides a roller press for removing foreign matter, characterized in that in any one of the above-mentioned 1 st to 4 th means, an angle adjusting portion for adjusting an attachment angle of the lamp portion to the frame portion is provided.

As a 6 th means for solving the above-mentioned problems, the present invention provides a roller press for removing foreign matter, characterized in that in the 5 th means, the angle adjusting portion is a fixing screw penetrating the lamp portion and the frame portion and screwed to the shaft portion, the fixing screw fastening the lamp portion to the frame portion in a state where the lamp portion is disposed at an arbitrary angle with respect to the frame portion, and adjusting an attachment angle of the lamp portion to the frame portion.

[ Effect of the scheme ]

According to this solution, there are the following practical benefits: as described above, since the roller press itself has the lamp unit attached to the frame unit, the foreign matter can be detected and removed simultaneously only by the roller press, and therefore the removal operation can be performed easily and efficiently.

According to this solution, there are the following practical benefits: as described above, since the lamp unit is provided on the grip side of the shaft unit, both the surface of the roller and the surface of the object to be cleaned of foreign matter are irradiated, and the scattered light reflected by the surface of the foreign matter and the shadow of the foreign matter are generated, the minute foreign matter in μm can be reliably detected even under indoor illumination by the contrast between the scattered light and the shadow, and as a result, the roller can be efficiently rotated only at the position where the foreign matter is detected to remove the foreign matter, and therefore, the roller does not need to be rotated uselessly, and the life of the roller can be prolonged.

In addition, in this case, according to the present scheme, there are the following practical benefits: in the case where the surface of the object is not a floor or a wall, but is particularly a surface of a product such as an electronic component, diffuse reflection occurs due to irradiation of light even when the surface is damaged, and therefore even a minute damage can be detected, and if the roller is not removed even when it is turned to the position, it can be determined that the object is a defect existing in the product, and the object can be used as one step of product inspection as well as removing foreign matter alone.

According to this solution, there are the following practical benefits: as described above, in particular, since it is possible to detect foreign matter adhering to the roller by irradiating light not only to the surface of the object from which foreign matter should be removed but also to the surface of the roller, it is possible to confirm whether or not foreign matter can be reliably removed by the roller, and it is possible to confirm the state of adhesion of fine foreign matter in μm to the roller, and to easily determine the maintenance timing such as cleaning or replacement of the roller.

According to this solution, there are the following practical benefits: as described above, since light is irradiated to at least a part of the object surface in the range equal to or more than the entire width of the roller, foreign matter can be reliably detected and efficiently removed without omission.

In addition, according to the present solution, there are the following practical benefits: as described above, since the lamp unit irradiates the light onto the surface of the object at the incident angle ranging from 0 ° to 30 °, as a result of the experiment described later, scattered light reflected by the surface of the foreign object and shadows of the foreign object can be appropriately generated in a wide range, and the foreign object can be effectively detected, and the operator can visually recognize the irradiation range from above, so that the light does not directly enter the eyes of the operator, the operator does not feel glare, the work efficiency can be improved, and at the same time, the operator is not influenced in health. In this case, the incident angle of the light irradiated from the lamp unit with respect to the surface of the object means an angle at which the light is diffused and irradiated by a lens or the like, but particularly the set orientation (optical axis) of the light source with respect to the surface of the object. The case where the incident angle is 0 ° means that the optical axis is parallel to the object surface, but the object surface can be irradiated with the diffused light to the maximum extent, and the scattered light reflected by the surface of the foreign object and the shadow of the foreign object can be generated more efficiently.

Moreover, according to the present solution, there are the following practical benefits: as described above, since the human body sensor is provided in the grip portion gripped by the operator, and the human body sensor is connected to the lamp portion, the lamp portion irradiates light only when the human body sensor detects the contact of the human body with the grip portion, the operator can irradiate light without performing an operation of a switch or the like, and thus the foreign matter removal operation can be easily performed, and if the operation is finished, the lamp is automatically turned off, so that the power source is not wasted, and the power source is durable.

Furthermore, according to the present solution, there are the following practical benefits: as described above, since the angle adjusting unit is provided to adjust the mounting angle of the lamp unit with respect to the frame unit, for example, when it is necessary to insert the roller press into a relatively narrow place and it is necessary to insert the grip unit in a state of being nearly parallel to the surface of the object or toward a position above the surface of the object, or when it is necessary to perform work on a position higher than the line of sight of the operator, even when it is difficult to properly secure the incident angle of light with respect to the surface of the object, it is possible to properly adjust the incident angle without forcing an unreasonable posture to the operator, and to effectively detect the foreign matter.

In this case, in particular, according to the present solution, there are the following practical benefits: as described above, the angle adjustment portion is a fixing screw that penetrates the lamp portion and the frame portion and is screwed to the shaft portion, and the fixing screw fastens the lamp portion to the frame portion in a state in which the lamp portion is disposed at an arbitrary angle with respect to the frame portion, and adjusts the mounting angle of the lamp portion with respect to the frame portion, so that the angle can be adjusted in a short time with a simple configuration and a simple operation.

Drawings

Fig. 1 is a perspective view of a roller press for removing foreign matters according to the present embodiment.

Fig. 2 is a front view of the roller press for removing foreign matters according to the present embodiment.

Fig. 3 is a perspective view of the foreign matter removal roller press of the present embodiment from another angle.

Fig. 4 is a schematic perspective view showing a state in which the foreign matter removal roller press of the present embodiment irradiates the surface of the object with light.

Fig. 5 is an enlarged perspective view of an angle adjusting unit used in the roller press for removing foreign matters according to the present embodiment.

Fig. 6 is a view showing an irradiation state in the case where the object surface is irradiated with light at an incident angle of 15 ° by the lamp unit used in the roller press for removing foreign matter according to the present embodiment.

Fig. 7 is a view showing an irradiation state in the case where the object surface is irradiated with light at an incident angle of 20 ° by the lamp unit used in the roller press for removing foreign matter according to the present embodiment.

Fig. 8 is a view showing an irradiation state in the case where the object surface is irradiated with light at an incident angle of 25 ° by the lamp unit used in the roller press for removing foreign matter according to the present embodiment.

Fig. 9 is a view showing an irradiation state in the case where the object surface is irradiated with light at an incident angle of 30 ° by the lamp unit used in the roller press for removing foreign matter according to the present embodiment.

Fig. 10 is a view showing an irradiation state in the case where the object surface is irradiated with light at an incident angle of 35 ° by the lamp unit used in the roller press for removing foreign matter according to the present embodiment.

[ Symbolic description ]

1 Roller

10 Rolling machine for removing foreign matter

12 Shaft portions

14 Frame portions

14A beam portion

14B support part

16 Grip portion

Tapered surface of 16a grip

18 Set screw

20 Lamp part

20A lamp body

20B mounting plate

22 Angle adjusting part.

Detailed Description

If the embodiment of the present invention is described in detail with reference to the drawings, fig. 1 to 3 show a roller press 10 for removing foreign matter of the present invention, and as shown in fig. 1 to 3, the roller press 10 for removing foreign matter has: a shaft 12 rotatably supporting the roller 1 from which foreign matter is adhered and removed; a frame portion 14 supporting both ends of the shaft portion 12; and a grip portion 16 coupled to the frame portion 14.

The foreign matter removal roller press 10 can be used mainly for cleaning a production line in various aspects as follows: there are also articles to be attached to floors or walls of clean rooms, which need to avoid the presence of foreign substances, specifically, polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), unstretched polypropylene (CPP), biaxially oriented polypropylene (OPP), ceramic films, liquid crystal/electronic materials, high-functional films, printed materials, various foils, semiconductor articles, and the like, for example. Of course, the present invention is not limited to these production lines, and can be used to remove foreign matter present on the surfaces of floors and walls of work sites such as construction sites and factories, equipment such as machines and tools, and floors and walls of houses.

Further, as the foreign matter to be removed by the foreign matter removal roller press 10, there are mentioned fine foreign matters in units of μm, such as particles, dust, and dust, which may be inevitably generated due to friction or the like in the production process of the product, and the like, and the fine foreign matters are used for detecting and removing foreign matters having a size of 30 μm or more, particularly preferably 10 μm or more, for example.

(1. Roller)

The roller 1 used in the foreign matter removal roller press 10 is not particularly limited as long as it can rotate and remove foreign matters by adhesion, but for example, a roller in which an adhesive pad or an adhesive tape is wound around a cylindrical rubber having a hollow portion through which the shaft portion 12 passes may be used. In this case, the adhesive surface of the adhesive pad or the adhesive tape is protected by a protective sheet before use, and when in use, the protective sheet is peeled off to expose the adhesive surface, and the adhesive surface is turned on the surface of the object, whereby foreign matter is adhered to the roller 1 and removed. The protective sheet may be a back surface (a surface opposite to the adhesive surface) of an adhesive pad or an adhesive tape of the upper layer.

Further, since the roller 1 is rotated repeatedly on the target surface after the foreign matter adheres, an adhesion force to such an extent that the foreign matter once adhered to the roller 1 is not transferred to the target surface any more is required. However, the hardness of rubber, the adhesion strength of the adhesive pad, and the adhesion force of the adhesive tape can be appropriately set depending on the nature and state of the object surface such as a flexible film-like product, the ground of a structure, a product having a shaping property such as a surface on which a machine or an instrument is provided, or the object surface having irregularities, and the nature of foreign matter to be removed (such as paper or metal). Further, the roller 1 to which the foreign matter is attached can be rotated on the transfer sheet having a stronger adhesion force than the roller 1, and the foreign matter attached to the roller 1 can be removed to clean the roller 1. Further, since the operator holds the grip portion 16 with his hand and operates the roller 1, 150mm is preferable from the standpoint of weight and operability, and the maximum width is preferably about 300 mm. Of course, the frame portion 14 is also set to a size matching the entire width of the roller 1. The diameter of the roller 1 (diameter of the cylindrical rubber around which the adhesive pad or the like is wound) is preferably about 30 mm.

(2. Shaft portion)

As the shaft portion 12 rotatably supporting the roller 1, a hollow tube made of metal such as stainless steel or a hollow tube made of resin such as polyacetal resin having a certain degree of light weight and sufficient strength can be used. The shaft portion 12 is inserted into the hollow portion of the roller 1 and rotatably supports the roller 1 with respect to the foreign matter removal roller press 10 and the target surface, but in this case, the shaft portion 12 itself may be fixed to the frame portion 14 and supported, and the roller 1 may be rotatably supported by the shaft portion 12 by rotating the roller 1 with respect to the shaft portion 12 or by fixing the roller 1 to the shaft portion 12 (by rotating the shaft portion 12 together with the roller 1).

(3. Frame part)

As shown in fig. 1 to 3, the frame portion 14 supporting both ends of the shaft portion 12 has a substantially コ -like shape formed by a beam portion 14A having substantially the same length as the roller 1 and 2 support portions 14B which can extend from both ends of the beam portion 14A and sandwich both ends of the shaft portion 12. As shown in fig. 1 to 3, the frame portion 14 is provided so as to extend across the roller 1, and in particular, as shown in fig. 5, the shaft portion 12 is supported by fixing screws 18 that each penetrate through 2 support portions 14B and are screwed to the shaft portion 12. The frame 14 may be formed of a metal material such as aluminum or a resin material such as ABS resin.

(4. Grip portion)

The grasping portion 16 is a portion to be grasped by an operator by hand and operated by the foreign matter removing roller 10, and is coupled to the beam portion 14A of the frame portion 14 as shown in fig. 1 to 3. As shown in fig. 1 to 3, the grip portion 16 is formed in a bar shape longer than the palm of a human hand, but in this case, a tapered surface 16a is formed for easy grasping by an operator. The grip portion 16 may have another cylindrical shape having a circular or elliptical cross section, for example, as long as it can be gripped by an operator without any discomfort. In addition, in view of maintainability, it is desirable that the grip portion 16 is detachably attached to the beam portion 14A of the frame portion 14. The grip portion 16 may be formed of a metal material such as aluminum or a resin material such as ABS resin, similar to the frame portion 14.

(5. Lamp section)

As shown in fig. 1 to 5, the foreign matter removal roller press 10 of the present embodiment further includes a lamp portion 20 attached to the frame portion 14. In this way, since the foreign matter removal roller 10 itself has the lamp portion 20 attached to the frame portion 14, the foreign matter detection and removal operation can be performed simultaneously only by the foreign matter removal roller 10, and therefore the removal operation can be performed easily and efficiently.

As shown in fig. 1 and 2, the lamp unit 20 is composed of a lamp body 20A and a mounting piece 20 for mounting the lamp body 20A to the frame 14. The mounting pieces 20A are provided so as to extend from both ends of the lamp body 20A, and as shown in fig. 1 to 5, the lamp portion 20 is mounted on the frame portion 14 by arranging the 2 mounting pieces 20B so as to extend across the frame portion 14 from the outer side of the support portion 14 of the frame portion 14, and fastening the mounting pieces to the shaft portion 12 together with the frame portion 14 by the fixing screws 18.

In this case, in particular, as shown in fig. 1 to 5, the lamp portion 20 is provided on the grip portion 16 side (the side opposite to the traveling direction of the roller 1 in the case of pressing the foreign matter removal roller press 10 from the grip portion 16 side while gripping the grip portion 16) with respect to the shaft portion 12, irradiates both the surface of the roller 1 and the surface to be removed with the scattered light reflected by the surface of the foreign matter and the shadow of the foreign matter are generated. Specifically, as shown in fig. 1 to 5, the mounting piece 20B is formed so as to extend obliquely forward (toward the roller 1 side) from the lamp body 20 instead of directly below the lamp body 20A, and the mounting piece 20B is mounted to the frame portion 14 in a state in which the irradiation surface of the lamp body 20A is directed toward the roller 1 side, whereby the lamp body 20A as a light source can be provided on the grip portion 16 side from the shaft portion 12.

Therefore, the lamp unit 20 can irradiate light not only to the surface of the object from which foreign matter should be removed, but also to the surface of the roller 1. This makes it possible to confirm whether or not foreign matter can be reliably removed by the roller 1, and to confirm the adhesion state of fine foreign matter in μm to the roller 1, and to easily determine the maintenance timing such as cleaning or replacement of the roller 1.

In particular, as shown in fig. 4, the lamp unit 20 irradiates at least a part of the target surface with light in a range equal to or greater than the entire width of the roller 1. In this case, in particular, as shown in fig. 1 and 4, the lamp body 20A has substantially the same length as the roller 1, and a plurality of light sources 20A are provided so as to be capable of irradiating light to a range equal to or greater than the entire width of the roller 1. Specifically, in the illustrated embodiment, 5 light sources 20a are provided, and light emitted from each light source 20a is emitted to at least the same width range as the entire width of the roller 1. Thus, unlike the case where only a part is irradiated, foreign matter existing in the front can be reliably detected and efficiently removed without missing the direction of light.

In this case, in the illustrated embodiment, light emitted from these 5 light sources 20A (particularly, light emitted from the outermost 2 light sources 20A) is diffused, and thus the light sources are not provided near both ends of the lamp body 20A, but the light sources 20A may be arranged continuously over the entire width of the lamp body 20A, unlike the illustrated embodiment, as long as the light can be emitted at least over the same width as the entire width of the roller 1.

As the light source, an LED may be used, and the LED may be diffused by a circular lens provided on the front surface of the lamp body 20A, so that light is irradiated at least in the same width as the entire width of the roller 1. It is preferable that the light emitted from the light source 20a is a green lamp having a maximum light flux of about 180lm and a peak wavelength of about 520 nm. This is because, as a result of irradiation of light of various hues such as cyan, lime (Lime), opalescence (Mint), and PCA, and visual recognition, it was confirmed that: under the indoor illumination of the roller press 10 for removing foreign matter according to this embodiment, green is a color tone most suitable for generating scattered light reflected by the surface of the foreign matter and a shadow of the foreign matter by irradiating light to the surface of the object. As a result, even under indoor illumination, the contrast between the scattered light and the shadow can reliably detect minute foreign matter in μm, and as a result, the roller 1 can be rotated efficiently only at the portion where the foreign matter is detected to remove the foreign matter, so that the roller 1 does not need to be rotated uselessly, and the lifetime of the roller 1 can be prolonged. In the illustrated embodiment, 5 light sources 20a are arranged so that the distance between the centers of the lenses becomes 20 mm.

In addition, in the case where the surface of the object is not a floor or a wall, but is particularly a surface of a product such as an electronic component, diffuse reflection occurs due to irradiation of light even when the surface is damaged, and therefore even a minute damage can be detected, and if the roller 1 is not removed even when it is turned to the position, it can be determined that the defect exists in the product, and the defect can be used as one step of product inspection as well as removing a foreign matter alone.

In addition, in this case, white LEDs can be used, and green lenses can be used as lenses to blend light. In addition, in terms of the property of the foreign matter removal roller press 10 that an operator grips with his/her hand to operate, it is desirable to use a power source provided inside such as a dry cell, in order to improve the workability, as compared to the use of an external power source. The power supply may be disposed in the grip portion 16 formed to be openable and closable, for example, in addition to the lamp body 20A.

(6. Incidence angle of light with respect to the object surface)

In addition, the lamp unit 20 preferably irradiates light to the object surface at an incident angle ranging from 0 ° to 30 °. In this case, in order to clearly generate a contrast between scattered light reflected by the foreign matter by irradiating the foreign matter with light and shadow, it is preferable that the light is irradiated horizontally from the front side to the surface of the object. However, in order to irradiate light also to the surface of the roller 1, it is difficult to set the optical axis to the same height as the target surface. Therefore, first, the lamp unit 20 is provided obliquely rearward of the roller 1 having a diameter of 30mm in accordance with the actual specification, the height from the light emitting surface of the light source 20a to the surface of the object is set to be approximately 50mm, and then light is irradiated at various angles, and the irradiation range and the state of occurrence of the contrast between scattered light and shadow are visually recognized from above. The results are shown in fig. 6 to 10.

In the present embodiment, the incident angle of the light irradiated by the lamp unit 20 with respect to the surface of the object means an angle at which the light is diffused and irradiated by a lens or the like, but particularly the set orientation (optical axis) of the light source with respect to the surface of the object. In this case, in a state where the optical axis of the lamp unit 20 is located above the object surface, the case where the incident angle becomes 0 ° means a state where the optical axis is parallel to the object surface, but it can be said that the following best mode is adopted: the object surface can be irradiated with the diffused light to the widest, and the scattered light reflected by the surface of the foreign object and the shadow of the foreign object can be generated even more efficiently. Therefore, in order to examine the appropriate range at other angles, the incident angles were set to 15 ° (fig. 6), 20 ° (fig. 7), 25 ° (fig. 8), 30 ° (fig. 9), and 35 ° (fig. 10), and the irradiation range of light and the state of occurrence of the contrast between scattered light and shadow were visually checked from above.

The results were as follows: as shown in fig. 6 to 9, if the range is 15 ° to 30 °, the generation of contrast between scattered light and shadow can be appropriately confirmed in a wide range suitable for the confirmation work; however, as shown in fig. 10, the irradiation range was narrowed at 35 °, and the contrast generation state was not necessarily good. Therefore, although it is preferable to irradiate light to the target surface at an incident angle in the range of 0 ° to 30 °, it is more preferable that the range in which the roller 1 can be rolled at a time is about 200mm in consideration of the operator's hand extension, and it is possible to be 15 ° to 25 °.

By setting the incident angle of light to the surface of the object in this way, scattered light reflected by the surface of the foreign object and shadows of the foreign object can be generated appropriately in a wide range, and detection of the foreign object can be performed effectively.

(7. Human body induction sensor)

A human body induction sensor, not shown, is provided in the grip portion 16. The body sensing sensor is electrically connected to the lamp part 20, and the lamp part 20 irradiates light only when contact of a person with the grip part 16 is monitored by the body sensing sensor. Therefore, the operator does not perform an operation such as a switch, but automatically irradiates light only by gripping the grip portion 16 in order to perform the operation, and thus the foreign matter removal operation can be easily performed, and if the operation is completed and the hand is released from the grip portion 16, the light is automatically turned off, and thus the power supply can be made durable without wasting the power supply.

As the human body sensor, for example, a film type or substrate type touch sensor or an infrared type human body sensor can be used. By providing these human body sensing sensors on the upper surface of the grip portion 16 that the hand of the operator inevitably touches when operating the foreign matter removal roller press 10, the lamp portion 20 can be appropriately operated. It is needless to say that the lamp unit 20 may be turned on/off by a switch without using a human body induction sensor.

(8. Angle adjusting part)

In particular, as shown in fig. 5, the foreign matter removal roller press 10 of the present embodiment includes an angle adjustment unit 22 that adjusts the attachment angle of the lamp unit 20 to the frame unit 14. Therefore, for example, when it is necessary to insert the foreign matter removal roller 10 into a relatively narrow place and to insert the grip portion 16 in a state of being nearly parallel to the object surface or toward a position higher than the object surface, or when it is necessary to perform work on a position higher than the line of sight of the operator, even when it is difficult to properly secure the incident angle of light to the object surface, the operator is not forced into an unreasonable posture, and the incident angle of light to the object surface can be properly adjusted as described above, so that the foreign matter can be effectively detected.

As the angle adjusting portion 22, specifically, as shown in fig. 5, a fixing screw 18 for attaching the frame portion 14 to the shaft portion 12 can be used as it is. That is, the fixing screw 18 penetrating the lamp portion 20 and the frame portion 14 and screwed to the shaft portion 12 may be used as the angle adjustment portion, and the fixing screw 18 may fasten the lamp portion 20 to the frame portion 14 in a state where the lamp portion 20 is disposed at an arbitrary angle with respect to the frame portion 14, and may adjust the mounting angle of the lamp portion 20 with respect to the frame portion 14. This allows the angle to be adjusted in a short time with a simple structure and a simple operation.

The form of the angle adjuster 22 is not limited to the illustrated fixing screw 18, and may be a stopper for restricting the swing of the lamp unit 20, for example, in addition to the lamp unit 20 being attached to the frame so as to be swingable.

[ INDUSTRIAL APPLICABILITY ]

The present invention can be widely applied to cleaning of a production line, which is involved in many aspects such as a floor or a wall of a clean room where the presence of foreign matter is to be avoided, and an industrial product where foreign matter is not to be attached, or to removal of foreign matter present on a surface of an object such as a floor or a wall of a work place such as a construction site or a factory, or a floor or a wall of a house where equipment such as a machine or an instrument is to be installed.

Claims

1. A roller press for removing foreign matter, comprising:

A shaft portion rotatably supporting a roller for removing foreign matter by adhering thereto;

a frame portion supporting both ends of the shaft portion; and

A grip portion coupled to the frame portion,

It is characterized in that the method comprises the steps of,

And a lamp part mounted on the frame part,

The lamp unit is provided on the grip portion side of the shaft portion, irradiates both the surface of the roller and the surface of the object from which the foreign matter is to be removed, generates scattered light reflected by the surface of the foreign matter and shadows of the foreign matter, and irradiates at least a part of the surface of the object with light in a range equal to or greater than the entire width of the roller.

2. The roller press for removing foreign matter according to claim 1, wherein,

The lamp portion irradiates light to the object surface at an incident angle ranging from 0 ° to 30 °.

3. The roller press for removing foreign matter according to claim 1, wherein,

A body sensing sensor is provided at the grip portion, the body sensing sensor being connected to the lamp portion, the lamp portion radiating light only when contact of a person to the grip portion is monitored by the body sensing sensor.

4. The roller press for removing foreign matter according to claim 2, wherein,

5. The roller press for removing foreign matter according to any one of claim 1 to claim 4,

An angle adjusting part for adjusting the mounting angle of the lamp part relative to the frame part.

6. The roller press for removing foreign matter according to claim 5, wherein,

The angle adjusting portion is a fixing screw penetrating the lamp portion and the frame portion and screwed to the shaft portion, and the fixing screw fastens the lamp portion to the frame portion in a state where the lamp portion is disposed at an arbitrary angle with respect to the frame portion, and adjusts an attachment angle of the lamp portion with respect to the frame portion.