Dust removal device

Abstract

The present application provides a dust removal device capable of pressing a workpiece with uniform pressing force; the dust removal device (10) is provided with: dust removal rollers (41A), (41B) that remove dust from the upper surface side or the lower surface side of a workpiece (W); a pair of adhesive tape holders (50) that hold an adhesive tape roll (T1) from both end sides thereof, wherein the adhesive tape roll (T1) removes dust adhering to the dust removal rollers (41A), (41B) in a pressed state; a uniform pressing mechanism (150) that is arranged inside a tape drum (T3) of the adhesive tape roll (T1) and is used to suppress variation in the pressing force applied by the adhesive tape roll (T1) to the dust removal rollers (41A), (41B) in the axial direction, the uniform pressing mechanism (150) being provided with: a holding shaft (151) that extends in the axial direction in a manner linking the pair of adhesive tape holders (50), is eccentric from the rotation center of the pair of adhesive tape holders (50), and does not rotate relative to the adhesive tape roll (T1); and a plurality of pressing holders (152) that are installed along the axial direction of the holding shaft (151) and press the tape drum (T3) from the inner drum side.

Description

Technical Field

[0001] This invention relates to a dust removal device for removing dust adhering to a workpiece. Background Technology

[0002] To remove dust adhering to various workpieces such as printed circuit boards or semiconductor circuit boards, a dust removal device as shown in Patent Document 1 is used. In this dust removal device, an adhesive tape roll (630) is held on a rotating retainer (631A), which is rotatably mounted on a support slider (62A). Furthermore, by pressing the upper protrusion (62A3) of the support slider (62A) using an actuator (70A), the support slider (62A) moves along a guide groove (61A1).

[0003] By moving, the adhesive tape roll (630) presses the adhesive rollers (52) and (53), which resist the elastic force of the return spring (95) while abutting against the workpiece (W), thereby enabling dust removal from the workpiece (W).

[0004] [Existing Technical Documents]

[0005] [Patent Documents]

[0006] Patent Document 1: Japanese Patent Application Publication No. 2016-203089 Summary of the Invention

[0007] (The problem that the invention aims to solve)

[0008] However, in the structure of Patent Document 1, there is a problem of uneven pressing force when pressing the workpiece (W). As a cause of uneven pressing force on the workpiece (W), the following reasons can be considered: (a) wobbling between the support slider (62A) and the guide groove (61A1); (b) eccentricity or insufficient roundness of either the adhesive tape roll (630) or the rotating holding part (631A); (c) uneven pressing force of the adhesive rollers (52) and (53) on the workpiece (W) in the axial direction caused by deviation or force of the return spring (95); (d) uneven pressing force of the adhesive tape roll (630) in the axial direction, etc.

[0009] The present invention was made in view of the above circumstances, and its object is to provide a dust removal device capable of pressing a workpiece with uniform pressing pressure.

[0010] (A solution to the problem)

[0011] To address the aforementioned issues, according to a first aspect of the present invention, a dust removal device is provided for removing dust from workpieces, and the dust removal device has the following features.

[0012] The dust removal device comprises: a dust removal roller that removes dust from the upper or lower surface of the workpiece; a pair of adhesive tape holders that hold the adhesive tape roll from both ends thereto, wherein the adhesive tape roll transfers dust adhering to the dust removal roller in a pressed state; and a uniform pressing mechanism disposed inside the tape tube of the adhesive tape roll for suppressing axial variation of the pressing force applied by the adhesive tape roll to the dust removal roller.

[0013] The uniform pressing mechanism includes: a retaining shaft that extends axially in connection with a pair of adhesive tape holders, is eccentric from the rotation center of the pair of adhesive tape holders, and does not rotate relative to the adhesive tape roll; and pressing retainers, of which a plurality of are mounted along the axial direction of the retaining shaft and press the tape roll from the inner cylinder side.

[0014] (Invention effect)

[0015] According to the present invention, a dust removal device capable of pressing a workpiece with uniform pressing force can be provided. Attached Figure Description

[0016] Figure 1 This is a side view showing a portion of the structure of the dust removal device according to the first embodiment of the present invention.

[0017] Figure 2 It means Figure 1 A partial perspective view of the structure near the dust removal unit and conveyor belt unit in the dust removal device shown.

[0018] Figure 3 It means Figure 1 A side sectional view of the structure near the dust removal roller unit and conveyor belt unit in the dust removal device shown.

[0019] Figure 4 It means Figure 1 A partial perspective view of the structure near the dust removal roller unit in the dust removal device shown.

[0020] Figure 5 It means Figure 1 A perspective view of the structure near the dust removal roller synchronization mechanism in the dust removal device shown.

[0021] Figure 6 It means Figure 1 A perspective view of the structure near the dust removal roller guide, the conveyor belt guide, and the positioning mechanism in the dust removal device shown.

[0022] Figure 7 It means Figure 1 A partial perspective view of the structure near the adhesive tape support and elastic support mechanism located at one end of the adhesive tape roll in the dust removal device shown.

[0023] Figure 8 It means Figure 1 A partial perspective view of the structure near the adhesive tape holder and fixed support mechanism located on the other end of the adhesive tape roll in the dust removal device shown.

[0024] Figure 9 It means Figure 1 A cross-sectional view of the structure of the adhesive tape roll and the uniform pressing mechanism in the dust removal device shown. Detailed Implementation

[0025] Hereinafter, the dust removal device 10 of the first embodiment of the present invention and the adhesive tape replacement method in the dust removal device 10 will be described with reference to the accompanying drawings.

[0026] <Regarding the overall structure of dust removal device 10>

[0027] Figure 1 This is a side view showing the main parts of the structure of the dust removal device 10 according to the first embodiment of the present invention. The dust removal device 10 of this embodiment is a device for removing dust adhering to the surface of a workpiece W. It should be noted that the workpiece W can be, for example, a substrate for a printed circuit board for mounting electronic devices, a liquid crystal panel, or a sheet component that is a raw material for the substrate, but the workpiece W can also be other planar components.

[0028] The dust removal device 10 of this embodiment, for example from... Figure 1 The workpiece W is conveyed from left to right while removing dust adhering to its surface. However, it can also be done in reverse, while conveying it from... Figure 1 The workpiece W is conveyed from the right side to the left side while removing dust adhering to the surface of the workpiece W.

[0029] The dust removal device 10, as a main structural component, includes: a frame 20, a conveying mechanism 30, a dust removal roller unit 40, an adhesive tape holder 50, and upper and lower guides for the dust removal roller 60 (see reference). Figure 4 etc.), cylinder connection mechanism 70 (refer to) Figure 2 (etc.), dust removal roller cylinder 80, support block 90 (refer to) Figure 2 etc.), dust removal roller synchronization mechanism 100 (refer to Figure 5 etc.), tape upper and lower guide parts 110 (refer to) Figure 2 etc.), elastic support mechanism 120 (refer to) Figure 2 etc.), fixed support mechanism 130 (refer to) Figure 8 etc.), tape cylinder 140 (refer to) Figure 2 etc.), uniform pressing mechanism 150 (refer to) Figure 9 etc.), positioning mechanism 160 (refer to) Figure 3 (etc.) and control unit 200.

[0030] Furthermore, as described below, the frame side plate 21, dust removal roller unit 40, dust removal roller upper and lower guide members 60, cylinder connecting mechanism 70, dust removal roller cylinder 80, support block 90, and dust removal roller synchronization mechanism 100, described later, can be pulled out integrally toward the side of the dust removal device 10, thereby allowing the upper dust removal roller 41A and the lower dust removal roller 41B to be replaced. Therefore, these parts constitute the dust removal unit U1.

[0031] Furthermore, in the dust removal unit U1 that can be pulled out as a single piece, dust removal roller units 40, each equipped with an upper dust removal roller 41A and a lower dust removal roller 41B that can abut against each other, are arranged on one side and the other side of the frame side plate portion 21 in the width direction. Therefore, there are two sets of dust removal roller units 40 in the dust removal unit U1. However, the dust removal unit U1 may have one set of dust removal roller units 40, or it may have three or more sets of dust removal roller units 40.

[0032] Additionally, the frame side panel 22, tape guide 110, elastic support mechanism 120, fixed support mechanism 130, tape cylinder 140, and uniform pressing mechanism 150, described later, can be pulled out integrally toward the side of the dust removal device 10, thereby enabling the replacement of the adhesive tape roll T1. Therefore, these parts constitute the tape unit U2.

[0033] Furthermore, the tape units U2 that can be pulled out as a single piece are respectively positioned above and below the dust removal unit U1. In both the upper and lower tape units U2, adhesive tape holders 50 are respectively arranged on one and the other side of the frame side panel 22 in the width direction, and adhesive tape rolls T1 are mounted on these adhesive tape holders 50. Therefore, there are two adhesive tape holders 50 in each of the upper and lower tape units U2. However, the upper and lower tape units U2 may each have only one adhesive tape holder 50, or they may have three or more adhesive tape holders 50.

[0034] <Frame 20>

[0035] The frame 20 is constructed by combining structural components such as metal supports, and installing an outer wall between these supports as needed. The frame 20 supports various structures of the dust removal device 10. In addition, the frame 20 also has a frame side plate portion 21 that is integrally pulled out together with the dust removal unit U1 and a frame side plate portion 22 that is integrally pulled out together with the conveyor belt unit U2.

[0036] <Conveying Mechanism 30>

[0037] The conveying mechanism 30 includes: an electric motor (not shown), a transfer mechanism (not shown) that transmits the driving force from the electric motor to various parts such as the conveying roller 32 or the lower dust removal roller 41B, and the conveying roller 32 for conveying the workpiece W transported from the outside. The electric motor is a part driven to rotate according to instructions from the control unit 200. It should be noted that in this embodiment, the transfer mechanism includes a magnetic coupling, a magnetic transmission member, and a transmission member array. However, the transfer mechanism is not limited to this; instead of a magnetic coupling or a magnetic transmission member, a gear-type transmission member or a conveyor belt may be used.

[0038] In addition, Figure 1 The device includes multiple conveyor rollers 32, and the motor can provide driving force to any one of them. Additionally, the motor can either transmit driving force to the lower dust collector roller 41B or not.

[0039] <Dust Removal Roller Unit 40>

[0040] Figure 2 This is a partial 3D view showing the structure near the dust removal unit U1 and the tape unit U2. Figure 3 This is a side sectional view showing the structure near the dust removal unit U1 and the tape unit U2. Figure 4 This is a partial 3D view showing the structure near the dust removal unit U1. For example... Figures 2 to 4 As shown, the dust removal roller unit 40 is a portion that contacts at least one of the upper and lower surfaces of the workpiece W and removes dust from the workpiece W. This dust removal roller unit 40 has an upper dust removal roller 41A and a lower dust removal roller 41B. Therefore, the upper and lower surfaces of the workpiece W can be dusted using the aforementioned upper dust removal roller 41A and lower dust removal roller 41B. It should be noted that the upper dust removal roller 41A and lower dust removal roller 41B correspond to dust removal rollers.

[0041] In addition, Figures 2 to 4 In the structure shown, there is one upper dust removal roller 41A and one lower dust removal roller 41B for each tape roll. However, there may also be two or more upper dust removal rollers 41A and lower dust removal rollers 41B for each tape roll.

[0042] like Figures 2 to 4As shown, the upper dust removal roller 41A and the lower dust removal roller 41B have a rotating shaft 42 and an adhesive rubber layer 43. The adhesive rubber layer 43 is disposed on the outside of the rotating shaft 42 and is disposed along its axial direction within a predetermined length. The adhesive rubber layer 43 is formed of adhesive rubber capable of adsorbing dust. In addition, the adhesive rubber layer 43 has an adsorption layer (not shown) on its surface side, which is made of a material with excellent dust adsorption properties such as silicone rubber. Alternatively, it can be configured such that a conductive layer such as nitrile rubber or carbon rubber is provided on the lower side of the adsorption layer.

[0043] In addition, the end of the rotating shaft 42 is mounted on the support block 71 described later via bearing B1.

[0044] <Adhesive Tape Holder 50 and Adhesive Tape Roll T1>

[0045] In addition, such as Figure 2 and Figure 3 As shown, the adhesive tape holder 50 holds the adhesive tape roll T1. The adhesive tape holder 50 has an inner circumferential connecting portion 51 and an adhesive tape holding support 52. The inner circumferential connecting portion 51 is a disc-shaped portion, and the front end side of the connecting shaft 133 (described later) is fixed to its radial center by, for example, a screw. In addition, on the inner side of the adhesive tape roll T1 (i.e., the side opposite to the connecting shaft 133 described later), on the outer diameter side portion of the inner circumferential connecting portion 51, which is spaced only a predetermined distance from the center, the holding shaft 151 (described later) and the reinforcing shaft 153 (described later) are connected.

[0046] Furthermore, the tape retainer 52 is a support with an inner circumferential connecting portion 51 installed on its inner diameter side, and it rotates relative to the inner circumferential connecting portion 51. Additionally, the tape retainer 52 is a portion of the tape tube T3 into which the adhesive tape roll T1 is embedded, and a flange portion 52a is provided on the outer peripheral edge of the tape retainer 52. Moreover, by abutting against the end of the tape tube T3 with this flange portion 52a, the adhesive tape holder 50 is prevented from being fully inserted into the tape tube T3.

[0047] Additionally, on the inner circumferential connecting portion 51, on the side inside the adhesive tape roll T1, the retaining shaft 151 and the reinforcing shaft 153 (described later) are connected.

[0048] Furthermore, the adhesive tape roll T1 is formed by winding the adhesive tape T2 onto the tape spool T3. The surface of the adhesive tape T2 is the adhesive surface. The adhesive surface can retain the dust adsorbed on the upper dust removal roller 41A and the lower dust removal roller 41B. Therefore, the adhesive force of the adhesive surface of the adhesive tape T2 on the dust is greater than the adhesive force of the upper dust removal roller 41A and the lower dust removal roller 41B on the dust. In this way, the dust can be well transferred from the upper dust removal roller 41A and the lower dust removal roller 41B to the adhesive surface of the adhesive tape T2.

[0049] Furthermore, a (splitting) slit is formed on the sheet-like adhesive tape T2, allowing it to be cut into sheets. Therefore, by cutting the adhesive tape T2 at the slit after pulling it from the tape roll T1, a soiled adhesive tape T2 can be easily replaced with a clean adhesive tape T2. The slit in the adhesive tape T2 is inclined relative to the axial direction, rather than parallel. Therefore, in the adhesive tape roll T1, the outermost end (stepped portion) of the adhesive tape T2 is also inclined relative to the axial direction. However, the slit in the adhesive tape T2 can also be parallel to the axial direction.

[0050] <Dust collector roller upper and lower guide 60, cylinder connecting mechanism 70, dust collector roller cylinder 80 and support block 90>

[0051] Next, the upper and lower guides 60 for the dust removal roller, the cylinder connecting mechanism 70, and the cylinder 80 for the dust removal roller will be described. Figure 4 As shown, the upper dust removal roller 41A is guided to move vertically by the dust removal roller guide 60. The dust removal roller guide 60 is disposed at the side end of the frame side plate portion 21 that constitutes the frame 20.

[0052] Additionally, the frame side plate portion 21 can be pulled out to the side of the dust removal device 10, thereby allowing the upper dust removal roller 41A and the lower dust removal roller 41B to be replaced. Therefore, the frame side plate portion 21 constitutes part of the dust removal roller unit 40.

[0053] The aforementioned dust removal roller upper and lower guide 60 is a linear guide including a guide rail 61, a sliding block 62, and a ball (not shown). The sliding block 62 can slide smoothly (with low frictional resistance) relative to the guide rail 61 without wobbling. The guide rail 61 is fixed to the side end of the frame side plate portion 21 in a vertically extending manner. This guide rail 61 is, for example, a general guide rail with a cross-sectional shape having reduced diameter portions on both sides. It should be noted that the dust removal roller upper and lower guide 60 corresponds to the first linear guide.

[0054] In addition, the sliding block 62 has, for example, a hook that enters the aforementioned constricted neck, so that it will not disengage from the aforementioned guide rail 61 and will not wobble.

[0055] The driving force from the cylinder 80 for the dust removal roller can be transmitted to the sliding block 62 via the cylinder connection mechanism 70. The cylinder connection mechanism 70 has a support block 71, a protruding shaft 73, and a clearance fit retaining member 74.

[0056] The support block 71 is a component that supports the end of the rotating shaft 42 of the upper dust removal roller 41A. Furthermore, the support block 71 is mounted on the aforementioned sliding block 62 by means of, for example, screws. Further, the rotating arm 102 of the dust removal roller synchronization mechanism 100, described later, is also connected to the support block 71.

[0057] The support block 71 has an upper plate portion 71a and a lower plate portion 71b disposed below the upper plate portion 71a. A U-shaped recess 71c is provided between the upper plate portion 71a and the lower plate portion 71b, and a bearing B1 is disposed in the recess 71c to provide axial support for the rotating shaft 42. Furthermore, a fixing piece 72 is installed at the opening of the recess 71c in the support block 71 to prevent the bearing B1 disposed in the recess 71c from falling out.

[0058] In addition, such as Figure 4 As shown, a protruding shaft 73 is mounted on the side of the support block 71 opposite to the side where the dust removal roller guide 60 is disposed. The protruding shaft 73 is a shaft-shaped (pin-shaped) component that protrudes from the side of the support block 71. This protruding shaft 73 is located in the clearance fit portion 74c of the clearance fit retaining component 74.

[0059] Furthermore, the clearance fit retaining member 74 is a component connected to the lower end of the piston rod 81 of the dust removal roller cylinder 80. The clearance fit retaining member 74 has an upper plate portion 74a and a lower plate portion 74b disposed below the upper plate portion 74a, and a clearance fit portion 74c is provided between the upper plate portion 74a and the lower plate portion 74b, and the aforementioned protruding shaft 73 is located in the clearance fit portion 74c.

[0060] Furthermore, the lower end of the piston rod 81 of the dust removal roller cylinder 80 is connected to the clearance-fit retaining member 74. The dust removal roller cylinder 80 is, for example, an air cylinder, which operates under the control of the control unit 200. In this embodiment, the dust removal roller cylinder 80 includes a piston rod 81, which can move up and down. Here, when the dust removal roller cylinder 80 moves in the direction of the piston rod 81 rising, the upper dust removal roller 41A moves upward, that is, the upper dust removal roller 41A moves away from the lower dust removal roller 41B.

[0061] Furthermore, the support block 90 is a component that supports the end of the rotating shaft 42 of the lower dust removal roller 41B. Similar to the support block 71 described above, the support block 90 has an upper portion 90a and a lower portion 90b located below the upper portion 90a. A U-shaped recess 90c is provided between the upper portion 90a and the lower portion 90b, and a bearing B2 is disposed in this recess 90c, providing axial support for the rotating shaft 42. Additionally, a fixing piece 91 is installed at the opening of the recess 71c in the support block 90 to prevent the bearing B2 disposed in the recess 90c from falling out.

[0062] Furthermore, the support block 90 is fixed to the side plate portion 21 of the frame by means of, for example, screws. Therefore, unlike the support block 71, the support block 90 does not slide in the vertical direction. Therefore, the vertical position of the lower dust removal roller 41B is fixed. In addition, the upper surface (conveyor surface) of the conveyor roller 32 of the conveying mechanism 30 and the upper surface (conveyor surface) of the lower dust removal roller 41B are set to the same height. Therefore, dust removal of the workpiece W can be performed effectively using the upper dust removal roller 41A and the lower dust removal roller 41B.

[0063] <Regarding the Dust Collector Roller Synchronization Mechanism 100>

[0064] Next, the dust removal roller synchronization mechanism 100 will be described. Figure 5 This is a perspective view showing the structure near the dust collector roller synchronization mechanism 100. (Example) Figure 5 As shown, the dust removal roller synchronization mechanism 100 includes a rotating shaft 101 and a rotating arm 102.

[0065] The rotating shaft 101 is a shaft-shaped component extending along the width direction of the dust removal device 10 (a direction perpendicular to the conveying direction of the workpiece W), and it rotates around a central axis. Furthermore, the rotating shaft 101 is rotatably supported on the side plate portion 21 of the frame via, for example, bearings (not shown). Further, the rotating shaft 101 is configured to be close to the upper dust removal roller 41A, but without interfering with it.

[0066] At both ends of the rotating shaft 101, the base ends of the rotating arms 102 are fixed by screws or the like. That is, when the rotating shaft 101 rotates, the pair of rotating arms 102 move in an arc shape. In addition, the front end of the rotating arm 102 is connected to the support block 71 via a mounting shaft 103. That is, an elongated oval hole 102a is provided at the front end of the rotating arm 102, and the mounting shaft 103 is inserted into the elongated oval hole 102a. Therefore, even if the rotating arm 102 moves in an arc, the mounting shaft 103 can move vertically along with the vertical movement of the support block 71.

[0067] In this dust removal roller synchronization mechanism 100, for example, when the dust removal roller 41A is pressed down as the adhesive tape roll T1 descends, the rotating shaft 101 rotates. Therefore, as the rotating shaft 101 rotates, a pair of rotating arms 102 rotate synchronously. Thus, unlike the case where the pair of rotating arms 102 rotate independently, both the support block 71 disposed on one end and the support block 71 disposed on the other end can be pressed down simultaneously.

[0068] Therefore, it is possible to prevent partial contact (one-end contact) where, for example, one end or the other end of the upper dust removal roller 41A comes into contact with the lower dust removal roller 41B first.

[0069] <Regarding the tape upper and lower guide components 110>

[0070] Next, the tape guide 110 and the tape cylinder 140 will be described. Figure 6 This is a perspective view showing the structure near the dust removal roller upper and lower guides 60, the conveyor belt upper and lower guides 110, and the positioning mechanism 160. (Example) Figure 2 and Figure 6 As shown, the tape holder 50 supporting the tape roll T1 is guided to move vertically by the tape vertical guide 110. The tape vertical guide 110 is disposed at the side end of the frame side plate portion 22 that constitutes the frame 20. Furthermore, the frame side plate portion 22 is the portion located above the frame side plate portion 21.

[0071] The tape up / down guide 110 has a structure similar to the dust removal roller up / down guide 60 described above. That is, the tape up / down guide 110 is a linear guide including a guide rail 111, a sliding block 112, and a ball (not shown), etc. The sliding block 112 can slide smoothly (with low frictional resistance) relative to the guide rail 111 without wobbling. Furthermore, the guide rail 111 has the same structure as the guide rail 61, and the sliding block 112 has the same structure as the sliding block 62; therefore, a description of the structure of these guide rails 111 and sliding blocks 112 is omitted. It should be noted that the tape up / down guide 110 corresponds to the second linear guide.

[0072] <Regarding the elastic support mechanism 120 and the fixed support mechanism 130>

[0073] Figure 7 This is a partial perspective view showing the structure near the adhesive tape holder 50 and the elastic support mechanism 120 located at one end of the adhesive tape roll T1. Additionally, Figure 8 This is a partial perspective view showing the structure near the adhesive tape holder 50 and the fixed support mechanism 130 located on the other end of the adhesive tape roll T1.

[0074] like Figure 7As shown, the adhesive tape holder 50 located at one end of the adhesive tape roll T1 is supported by the elastic support mechanism 120. Additionally, as... Figure 8 As shown, the adhesive tape holder 50 located at the other end of the adhesive tape roll T1 is supported by the fixed support mechanism 130.

[0075] The elastic support mechanism 120 has a cylindrical body 121 and a pressing shaft 122. The cylindrical body 121 is mounted on a sliding block 112 on one axial end side by means of, for example, screws. In addition, a spring (not shown) is built into the inside of the cylindrical body 121, which pushes the pressing shaft 122 toward the other axial end side.

[0076] Additionally, one end of the pressing shaft 122 extends through the cylindrical body 121 and protrudes axially to one side, and a handle 122a is installed at this end. The other end of the pressing shaft 122 is fixed to the aforementioned adhesive tape holder 50.

[0077] Additionally, the fixed support mechanism 130 includes a connecting block 131, a joint 132, and a connecting shaft 133 with a rectangular cross-section. The connecting block 131 is mounted on a sliding block 112 on the other end side in the axial direction by means of, for example, screws. One end of the connecting shaft 133 is rotatably connected to the connecting block 131 via the joint 132, which serves as a rotation axis in the vertical direction. Therefore, the connecting shaft 133 is in a state where it can rotate in the horizontal direction but cannot rotate in the rotational direction of the adhesive tape roll T1. The connecting shaft 133 is configured with a rectangular cross-section, and the other end of this rectangular connecting shaft 133 is inserted into the fitting hole of the inner circumferential connecting portion 51 of the adhesive tape holder 50.

[0078] <Regarding the 140 cylinder for tape>

[0079] Next, the conveyor belt cylinder 140 will be described. Similar to the dust removal roller cylinder 80 described above, the conveyor belt cylinder 140 is, for example, an air cylinder, and operates under the control of the control unit 200. The conveyor belt cylinder 140 has a piston rod 141, which can move up and down.

[0080] The piston rod 141 is connected to the cylinder portion 121 or the connecting block 131 via the connecting piece 142.

[0081] Here, when the tape cylinder 140 moves downwards towards the upper piston rod 141, the tape roll T1 presses down on the upper dust removal roller 41A. At this time, the upper dust removal roller 41A is pressed downwards and comes into contact with the upper surface of the workpiece W. In this way, when the upper dust removal roller 41A removes dust from the upper surface of the workpiece W, the tape roll T1 removes the dust adsorbed by the upper dust removal roller 41A.

[0082] Furthermore, when the tape cylinder 140 moves upward towards the lower piston rod 141, the tape roll T1 presses down the dust removal roller 41B. Here, the vertical position of the lower dust removal roller 41B is fixed, and when the workpiece W is conveyed, the lower dust removal roller 41B abuts against the lower surface of the workpiece W. Therefore, when the lower dust removal roller 41B removes dust from the lower surface of the workpiece W, the tape roll T1 removes the dust adsorbed by the lower dust removal roller 41B.

[0083] <Regarding the uniform pressing mechanism 150>

[0084] Next, the uniform pressing mechanism 150 will be explained. Figure 9 This is a cross-sectional view showing the structure of the adhesive tape roll T1 and the uniform pressing mechanism 150. (See diagram below.) Figure 9 As shown, the uniform pressing mechanism 150 is a mechanism for achieving a uniform distribution of pressing force on the adhesive tape roll T1 in the axial direction. The uniform pressing mechanism 150 includes a retaining shaft 151, a pressing retainer 152, and a reinforcing shaft 153.

[0085] The retaining shaft 151 is a shaft-shaped component, with one end fixed to the inner circumferential connecting portion 51 of the adhesive tape holder 50 located on one axial side, and the other end fixed to the inner circumferential connecting portion 51 of the adhesive tape holder 50 located on the other axial side. The retaining shaft 151 is not fixed to the radial center of the inner circumferential connecting portion 51, but is fixed to the outer diameter side only a predetermined distance from the radial center by means of, for example, screws. Therefore, it is positioned so as not to interfere with the aforementioned pressing shaft 122 or connecting shaft 133.

[0086] Furthermore, in the upper adhesive tape holder 50, the retaining shaft 151 is located below the radial center of the inner circumferential connecting portion 51. Conversely, in the lower adhesive tape holder 50, the retaining shaft 151 is located above the radial center of the inner circumferential connecting portion 51.

[0087] On the retaining shaft 151, wheel-shaped pressing retainers 152 are mounted via bearings B3 at predetermined intervals. Therefore, the pressing retainers 152 are configured to rotate relative to the retaining shaft 151. These pressing retainers 152 are components that press the tape roll T3 from the inner cylinder side. Specifically, the lower top of the pressing retainers 152 is positioned at approximately the same height so that the adhesive tape roll T1 can uniformly press the upper dust removal roller 41A or the lower dust removal roller 41B. However, to achieve uniform pressing force, the diameters of the individual pressing retainers 152 can be slightly different.

[0088] Furthermore, similar to the retaining shaft 151, the reinforcing shaft 153 is a shaft-shaped component. Like the retaining shaft 151, the reinforcing shaft 153 is not fixed to the radial center of the inner circumferential connecting portion 51, but is fixed by means of, for example, screws, to a portion on the outer diameter side separated from the radial center by only a predetermined distance. Therefore, the reinforcing shaft 153 is positioned so as not to interfere with the aforementioned pressing shaft 122 or connecting shaft 133.

[0089] The presence of this reinforcing shaft 153 prevents the uniform pressing mechanism 150 from twisting when the adhesive tape roll T1 is pressed using the pressing retainer 152. That is, the reinforcing shaft 153 serves as an axial reinforcing member for the uniform pressing mechanism 150.

[0090] <Regarding Positioning Mechanism 160>

[0091] Next, the positioning mechanism 160 will be described. The dust removal device 10 has the following features: Figure 3 The positioning mechanism 160 shown is designed to achieve uniform pressing of the workpiece W, suppress positional offset between the dust removal roller unit 40 and the adhesive tape roll T1, or wobbling of the sliding parts, so that the adhesive tape roll T1 abuts parallel to the dust removal roller unit 40, rather than making partial contact.

[0092] The positioning mechanism 160 includes a rod pressing cylinder 170, a belt-side positioning component 180, and a roller-side positioning component 190.

[0093] The lever-pressing cylinder 170 is, for example, an air cylinder, which operates under the control of the control unit 200. A pressing rod 172 is connected to the front end of the piston rod 171 of the lever-pressing cylinder 170. Therefore, by operating the lever-pressing cylinder 170, the pressing rod 172 can press the positioning rod 184 into place.

[0094] In addition, the tape-side positioning component 180 includes a shaft sliding guide 181, a positioning rod 184, a force-applying spring 185, and a shaft adjustment component 186.

[0095] The shaft sliding guide 181 is fixed to the frame side plate portion 22 by means of, for example, screws. The shaft sliding guide 181 has a tape-side bottom 182 and a roller-side bottom 183, with a space S1 between the tape-side bottom 182 and the roller-side bottom 183. Alternatively, the shaft sliding guide 181 may correspond to the first fixed portion, but the frame side plate portion 22 and the shaft sliding guide 181 may also correspond to the first fixed portion together.

[0096] A shaft hole 182a is provided at the bottom 182 of the tape side, and the shaft hole 182a passes through the bottom 182 of the tape side. Additionally, a shaft hole 183a is provided at the bottom 183 of the roller side, and the shaft hole 183a passes through the bottom 183 of the roller side. Furthermore, a positioning rod 184 passes through shaft holes 182a and 183a. At least one of the shaft holes 182a and 183a corresponds to a first shaft hole.

[0097] The positioning rod 184 is a component that, through the operation of the aforementioned rod-pressing cylinder 170, is pressed in by the pressing rod 172, protrudes from the bottom 183 of the roller side, and enters the positioning hole 191 of the roller-side positioning component 190, thereby performing positioning. Therefore, as... Figure 3 As shown, the positioning rod 184 is configured to be longer in the vertical direction than the axis sliding guide 181.

[0098] Additionally, a force-applying spring 185, which functions as a helical spring, is disposed in the space section S1 (see reference). Figure 3 The positioning rod 184 is configured to pass through the center hole of the force-applying spring 185. The force-applying spring 185 is a component that applies a force to the positioning rod 184 in a direction away from the roller-side positioning component 190.

[0099] Therefore, when the lever pressing cylinder 170 moves in the pressing direction, the positioning lever 184 is pressed into the roller-side positioning member 190 while resisting the force of the force-applying spring 185. However, when the lever pressing cylinder 170 does not press the positioning lever 184, the force of the force-applying spring 185 keeps the positioning lever 184 in its initial position, that is, in a position where it does not enter the positioning hole 191 of the roller-side positioning member 190.

[0100] Additionally, the shaft adjustment component 186 is a component that adjusts the radial position of the positioning rod 184 within the upper tape-side positioning component 180. This shaft adjustment component 186 is provided with a shaft hole 186a through which the positioning rod 184 is inserted. Here, as described above, 1849 is inserted into the shaft holes 182a and 183a; therefore, by adjusting the position of the shaft adjustment component 186 in a direction perpendicular to the axial direction, the wobble of the positioning rod 184 can be eliminated.

[0101] Here, unlike the upper dust removal roller 41A, the lower dust removal roller 41B does not move in the vertical direction; its vertical position is fixed. Therefore, compared to the upper dust removal roller 41A, the lower dust removal roller 41B has less wobbling. Therefore, the shaft adjustment component 186 is omitted from the lower belt-side positioning component 180. However, the shaft adjustment component 186 may also be provided in the lower belt-side positioning component 180.

[0102] Furthermore, the roller-side positioning member 190 is fixed to the frame side plate portion 21 by means of, for example, screws, etc., and the roller-side positioning member 190 is provided on the upper and lower sides of the frame side plate portion 21. That is, a pair of roller-side positioning members 190 are provided. In addition, the roller-side positioning member 190 corresponds to the second fixing position, but the frame side plate portion 21 and the roller-side positioning member 190 can also be positioned together to correspond to the second fixing position.

[0103] The roller-side positioning component 190 is configured as a block, and a positioning hole 191 is provided through the roller-side positioning component 190. By inserting the positioning rod 184 into the positioning hole 191, positioning is achieved between the tape-side positioning component 180 and the roller-side positioning component 190, and wobbling between them is eliminated. Furthermore, the positioning rod 184 of the upper tape-side positioning component 180 enters the positioning hole 191 of the upper roller-side positioning component 190, and the positioning rod 184 of the lower tape-side positioning component 180 enters the positioning hole 191 of the lower roller-side positioning component 190. Additionally, the positioning hole 191 corresponds to the second shaft hole.

[0104] <Regarding Control Department 200>

[0105] The control unit 200 controls the operation of the electric motor (not shown), the dust removal roller cylinder 80, the conveyor belt cylinder 140, and the lever pressing cylinder 170. This control unit 200 can be, for example, a computer equipped with a CPU (Central Processing Unit) or memory (RAM (Random Access Memory), ROM (Read-Only Memory), non-volatile memory, etc.). Furthermore, the concept of the control unit 200 may also include a motor driver for driving the electric motor and an actuator driver for operating the conveyor belt actuators 70A and 70B.

[0106] <Regarding the operation of dust removal device 10 when removing dust from workpiece W>

[0107] The operation of dust removal of workpiece W in the dust removal device 10 with the structure described above will be explained below.

[0108] When the dust removal device 10 is activated to remove dust from the workpiece W, firstly, the control unit 200 activates the lever pressing cylinder 170, and the pressing lever 172 presses the positioning lever 184 into place.

[0109] At this time, the positioning rod 184 is inserted into the positioning hole 191 of the roller-side positioning component 190 while resisting the force of the force-applying spring 185. In this way, the tape-side positioning component 180 and the roller-side positioning component 190 are positioned, and the wobbling between them is eliminated. Therefore, the positioning between the dust removal roller unit 40 and the adhesive tape holder 50 (adhesive tape roll T1) is reliably achieved, and the wobbling (loosening) between the dust removal roller unit 40 and the adhesive tape holder 50 (adhesive tape roll T1) is also eliminated.

[0110] In this state, the control unit 200 operates the conveyor belt cylinder 140, causing the elastic support mechanism 120 and the fixed support mechanism 130 to move the upper dust removal roller 41A and the lower dust removal roller 41B. At this time, via the conveyor belt upper and lower guide members 110, the sliding block 112 slides relative to the guide rail 111 mounted on the side plate portion 22 of the frame with very low frictional resistance and with high precision and without wobbling. Therefore, the elastic support mechanism 120 and the fixed support mechanism 130 mounted on the sliding block 112 also move in a wobbly state.

[0111] Thus, the adhesive tape roll T1 moves toward the upper dust removal roller 41A and the lower dust removal roller 41B by means of the adhesive tape holders 50 on one end and the other end. In this way, the adhesive tape roll T1 comes into contact with the upper dust removal roller 41A and the lower dust removal roller 41B.

[0112] In this embodiment, the dust removal device 10 includes a uniform pressing mechanism 150. Therefore, in the axial direction of the adhesive tape roll T1, a plurality of pressing and holding members 152 press the adhesive tape roll T1 from the inside side of the tape cylinder T3 toward the upper dust removal roller 41A and the lower dust removal roller 41B, respectively. Thus, the adhesive tape roll T1 can uniformly press the upper dust removal roller 41A and the lower dust removal roller 41B in its axial direction.

[0113] Furthermore, when the tape cylinder 140 is in a state of maintaining the prescribed pressure, not only the tape holders 50 at both ends of the tape roll T1, but also the multiple pressing holders 152 disposed inside the tape spool T3, press the tape roll T1 toward the upper dust removal roller 41A and the lower dust removal roller 41B. Therefore, even at the axial center side of the tape roll T1, the pressing force of the tape roll T1 on the upper dust removal roller 41A and the lower dust removal roller 41B is not weaker than at the two ends of the tape roll T1. That is, compared with existing dust removal devices, the pressing force at the axial center side of the tape roll T1 is not weaker.

[0114] Furthermore, if the upper dust removal roller 41A is pressed down by the tape roll T1 through the operation of the upper tape cylinder 140, the upper dust removal roller 41A is pressed down onto the lower dust removal roller 41B. At this time, the rotating shaft 101 of the dust removal roller synchronization mechanism 100 rotates, and a pair of rotating arms 102 simultaneously rotate in the downward pressing direction.

[0115] In this way, dust can be removed from the upper surface of workpiece W without partial contact, where partial contact refers to the upper dust removal roller 41A first abutting against the upper surface of workpiece W on one or the other side of its axial direction. Furthermore, the deviation in the pressing force applied by the upper dust removal roller 41A to the workpiece W is relatively small at both ends and the center of the axial direction, thus achieving uniform dust removal of the upper surface of workpiece W using the upper dust removal roller 41A. Additionally, the lower dust removal roller 41B generates a reaction force from the pressing force of the upper dust removal roller 41A across the workpiece W. Therefore, the deviation in the pressing force applied by the lower dust removal roller 41B to the workpiece W is relatively small at both ends and the center of the axial direction, thus achieving uniform dust removal of the lower surface of workpiece W using the lower dust removal roller 41B.

[0116] Furthermore, it is assumed that the pressing force generated by the operation of the upper belt cylinder 140 is the same in the dust removal device 10 of this embodiment and in conventional dust removal devices. In this case, in conventional dust removal devices, the pressing force at both ends of the upper and lower dust removal rollers along the axial direction is weaker than the pressing force at the center along the axial direction. This is because in conventional dust removal devices, the upper dust removal roller is supported by a force-applying spring, and bending stress similar to that of a cantilever beam is generated in the upper and lower dust removal rollers.

[0117] In contrast, in this embodiment, there are no force springs supporting the two ends of the upper dust removal roller 41A. Instead, the two ends of the upper dust removal roller 41A are supported by a dust removal roller cylinder 80 and a cylinder connecting mechanism 70. In this way, the deviation in pressing pressure on the workpiece W can be reduced at both ends and the center of the upper dust removal roller 41A and the lower dust removal roller 41B in the axial direction, thereby achieving uniform pressing pressure. Through the actions described above, dust is removed from the workpiece W.

[0118] Furthermore, if dust removal of workpiece W is not performed due to the completion of dust removal for workpiece W, the upper and lower tape cylinders 140 are activated respectively, causing the adhesive tape roll T1 to move away from the upper dust removal roller 41A and the lower dust removal roller 41B. At this time, unlike existing dust removal devices, the upper dust removal roller 41A is not supported by a force-applying spring; therefore, the upper dust removal roller 41A contacts the lower dust removal roller 41B. At this time, the control unit 200 activates the dust removal roller cylinder 80, thereby moving the upper dust removal roller 41A upwards.

[0119] <Postscript>

[0120] The contents described in the above embodiments can be understood, for example, as follows.

[0121] [1] That is, the dust removal device 10 includes: an upper dust removal roller 41A and a lower dust removal roller 41B (dust removal rollers), which remove dust from the upper surface side or the lower surface side of the workpiece W; a pair of adhesive tape holders 50, which hold the adhesive tape roll T1 from both ends, wherein the adhesive tape roll T1 transfers the dust adhering to the upper dust removal roller 41A and the lower dust removal roller 41B (dust removal rollers) in a pressed state; and a uniform pressing mechanism 150, which is disposed inside the tape tube T3 of the adhesive tape roll T1 for suppressing the axial variation of the pressing force of the adhesive tape roll T1 on the upper dust removal roller 41A and the lower dust removal roller 41B (dust removal rollers).

[0122] The uniform pressing mechanism 150 includes: a retaining shaft 151 that extends axially in connection with a pair of adhesive tape holders 50, is eccentric to the rotation center of the pair of adhesive tape holders 50, and does not rotate relative to the adhesive tape roll T1; and pressing retainers 152, of which a plurality of members are mounted along the axial direction of the retaining shaft 151 and press the tape roll T3 from the inner cylinder side.

[0123] With this configuration, multiple pressing and holding members 152 press the adhesive tape roll T1 towards the upper dust removal roller 41A and the lower dust removal roller 41B (dust removal rollers) from the inside side of the tape cylinder T3 along its axial direction. Therefore, the adhesive tape roll T1 can apply uniform pressure to the upper dust removal roller 41A and the lower dust removal roller 41B (dust removal rollers) along its axial direction. That is, the dust removal device 10, by providing the uniform pressing mechanism 150, can press the workpiece W with a uniform pressing force.

[0124] [2] In addition, in the above embodiments, based on the content described in [1] above, it can also be configured as follows.

[0125] A pair of adhesive tape holders 50 include: a pair of inner circumferential connecting portions 51 that do not rotate relative to the adhesive tape roll; and a pair of tape holding supports 52 that rotate relative to the pair of inner circumferential connecting portions 51 and are respectively inserted into one end and the other end of the tape reel T3. A holding shaft 151 extends axially in a state connecting the pair of inner circumferential connecting portions 51; a reinforcing shaft 153 is provided that connects the pair of inner circumferential connecting portions 51 in a state parallel to the holding shaft 151, thereby preventing twisting between the pair of adhesive tape holders 50.

[0126] With this configuration, the reinforcing shaft 153 is connected to a pair of inner circumferential connecting portions 51 in a state parallel to the retaining shaft 151, thereby preventing twisting between the pair of adhesive tape holders 50. Therefore, in the uniform pressing mechanism 150, the adhesive tape T2 is pressed from the inside of the tape cylinder T3 by a plurality of pressing retainers 152, thereby enabling uniform pressure to be applied to the upper dust removal roller 41A and the lower dust removal roller 41B (dust removal roller), thus enabling the workpiece W to be pressed with a uniform pressing force.

[0127] [3] In addition, in the above embodiments, based on the contents described in [1] and [2] or a combination thereof, the following is preferred.

[0128] The upper dust removal roller 41A and the lower dust removal roller 41B (dust removal rollers) are axially supported at both ends by support blocks 71, allowing them to rotate freely. Furthermore, the upper dust removal roller 41A and the lower dust removal roller 41B (dust removal rollers) are configured as follows: the upper dust removal roller 41A removes dust from the upper surface of the workpiece W, and the lower dust removal roller 41B removes dust from the lower surface of the workpiece W. A dust removal roller synchronization mechanism 100 is provided, which synchronizes the descent of one end of the upper dust removal roller 41A and the other end when pressed by the upper adhesive tape roll T1. The dust removal roller synchronization mechanism 100 includes: a rotating shaft 101, which is configured to be only a predetermined distance away from and parallel to the upper dust removal roller 41A, and is capable of rotating about a central axis; and a pair of rotating arms 102, the base ends of which are mounted on one end side and the other end side of the rotating shaft 101 in the axial direction, rotating about the central axis as the rotation center with the rotation of the rotating shaft 101, and the front ends are mounted on a support block 71.

[0129] With this configuration, as the adhesive tape roll T1 descends and the dust removal roller 41A is pressed downwards, it rotates about the rotation shaft 101 as its central axis. Therefore, the pair of rotating arms 102 rotate synchronously with the rotation shaft 101. Thus, unlike the case where the pair of rotating arms 102 rotate independently, both the support block 71 disposed on one end and the support block 71 disposed on the other end can be pressed downwards simultaneously.

[0130] Therefore, partial contact can be prevented where, for example, one end or the other end of the upper dust removal roller 41A contacts the lower dust removal roller 41B first. Thus, the upper dust removal roller 41A (dust removal roller) can apply uniform pressure to the lower dust removal roller 41B (dust removal roller), thereby pressing the workpiece W with a uniform pressing force.

[0131] [4] In addition, in the above embodiments, based on any one of the contents or combinations thereof described in [1] to [3] above, it may also be configured as follows.

[0132] It is equipped with a pair of dust removal roller cylinders 80, which move a pair of upper dust removal rollers 41A up and down by means of a pair of support blocks 71; it is equipped with a control unit 200 to control the operation of the pair of dust removal roller cylinders 80; when the pressure on the workpiece W is released, the pair of dust removal roller cylinders 80 are operated by the control unit 200.

[0133] With this configuration, the upper dust removal roller 41A can be moved up and down by the action of a pair of dust removal roller cylinders 80. Therefore, the force springs supporting both ends of the upper dust removal roller 41A can be omitted. Here, when force springs are used, there is a deviation in the spring characteristics of each force spring. Due to this deviation in spring characteristics, it is difficult to make the pressing force when the upper dust removal roller 41A is pressed by the upper belt cylinder 140 and the workpiece W is dusted uniform in the axial direction.

[0134] However, by configuring the upper dust removal roller 41A to be lifted by the operation of a pair of dust removal roller cylinders 80, and omitting the force springs for supporting both ends of the upper dust removal roller 41A, the pressing pressure when dusting the workpiece W can be made uniform in the axial direction.

[0135] [5] In addition, in the above embodiments, based on any one of the contents or combinations thereof described in [1] to [4] above, it may also be configured as follows.

[0136] A pair of support blocks 71 are guided to move up and down by a pair of dust removal roller guides 60 (first linear guides), and a pair of adhesive tape holders 50 are guided to move up and down by a pair of tape guides 110 (second linear guides).

[0137] With this configuration, a pair of support blocks 71 can slide smoothly (with low frictional resistance) via a pair of upper and lower guides 60 (first linear guides) for the dust removal rollers. In this way, the upper dust removal roller 41A can abut against the lower dust removal roller 41B with high precision, and this high-precision abutment can make the pressing pressure when removing dust from the workpiece W uniform in the axial direction.

[0138] Furthermore, the pair of tape holders 50 can slide smoothly (with low frictional resistance) via a pair of tape upper and lower guides 110 (second linear guides). In this way, the tape roll T1 held by the pair of tape holders 50 can abut against the upper dust removal roller 41A with high precision. This high-precision abutment also makes the pressing pressure when dusting the workpiece W uniform in the axial direction.

[0139] [6] In addition, in the above embodiments, based on any one of the contents or combinations thereof described in [1] to [5] above, it may also be configured as follows.

[0140] The upper dust removal roller 41A and the lower dust removal roller 41B (dust removal rollers) constitute the dust removal unit U1, and the adhesive tape holder 50 and the uniform pressing mechanism 150 constitute the tape unit U2. In addition, a positioning mechanism 160 is provided for positioning the dust removal unit U1 and the tape unit U2. Additionally, the positioning mechanism 160 includes: a long strip-shaped positioning rod 184; a shaft sliding guide 181 (first fixed part), which is disposed in the tape unit U2 and has shaft holes 182a and 183a (first shaft holes) through which the positioning rod 184 is inserted; a rod pressing cylinder 170, which operates by pressing the positioning rod 184 in; and a roller side positioning component 190 (second fixed part), which is disposed in the dust removal unit U1 and has a positioning hole 191 (second shaft hole). When the positioning rod 184 is pressed in by the action of the rod pressing cylinder 170, while maintaining the position rod 184 inserted through the shaft holes 182a and 183a (first shaft holes), the positioning rod 184 is inserted through the positioning hole 191 (second shaft hole).

[0141] With this configuration, the dust removal device 10 includes a positioning mechanism 160. By inserting the positioning rod 184 of the positioning mechanism 160 into the shaft hole 182a, the shaft hole 183a (first shaft hole), and the positioning hole 191 (second shaft hole), the positioning between the dust removal unit U1 and the conveyor belt unit U2 can be performed with high precision. In addition, the shaking between the dust removal unit U1 and the conveyor belt unit U2 can be eliminated.

[0142] By achieving such high-precision positioning and eliminating wobbling, the pressure applied during dust removal of workpiece W can be made uniform in the axial direction.

[0143] <Variation Example>

[0144] The various embodiments of the present invention have been described above, but the present invention can be modified in various ways. These will be described below.

[0145] In the above embodiment, one conveyor belt unit U2 is provided on the upper side and one on the lower side of the dust removal unit U1. However, it is also possible to use a structure in which the conveyor belt unit U2 is provided only on the upper side or only on the lower side. Alternatively, it is also possible to use a structure in which multiple dust removal units U1 and conveyor belt units U2 are arranged in the conveying direction.

[0146] (Symbol Explanation)

[0147] 10…Dust removal device, 20…Frame, 21…Frame side plate, 22…Frame side plate, 30…Conveying mechanism, 32…Conveying roller, 40…Dust removal roller unit, 41A…Upper dust removal roller (corresponding to dust removal roller), 41B…Lower dust removal roller (corresponding to dust removal roller), 42…Rotating shaft, 43…Adhesive rubber layer, 50…Adhesive tape retainer, 51…Inner circumferential connection, 52…Adhesive tape retainer support, 52a…Flange, 60…Dust removal roller upper and lower guides (corresponding to the first linear guide), 61…Guide rail, 62…Sliding block, 70…Cylinder connection mechanism, 70A…Actuator for adhesive tape, 70B…Adhesive… 71… Support block, 71a… Upper sheet portion, 71b… Lower sheet portion, 71c… Recess, 72… Fixing plate, 73… Protruding shaft, 74… Clearance fit retaining component, 74a… Upper sheet portion, 74b… Lower sheet portion, 74c… Clearance fit portion, 80… Dust removal roller cylinder, 81… Piston rod, 90… Support block, 90a… Upper sheet portion, 90b… Lower sheet portion, 90c… Recess, 91… Fixing plate, 100… Dust removal roller synchronization mechanism, 101… Rotating shaft, 102… Rotating arm, 102a… Hole portion, 103… Mounting shaft, 110… Tape upper and lower guide (corresponding to the second linear guide) 111…guide rail, 112…sliding block, 120…elastic support mechanism, 121…cylinder body, 122…pressing shaft, 122a…handle, 130…fixed support mechanism, 131…connecting block, 132…joint, 133…connecting shaft, 140…tape cylinder, 141…piston rod, 142…connecting piece, 150…uniform pressing mechanism, 151…holding shaft, 152…pressing retainer, 153…reinforcing shaft, 160…positioning mechanism, 170…rod pressing cylinder, 171…piston rod, 172…pressing rod, 180…tape side positioning component, 181…shaft sliding guide Guide (corresponding to the first fixed part), 182…bottom of the tape side, 182a…shaft hole (corresponding to the first shaft hole), 183…bottom of the roller side, 183a…shaft hole (corresponding to the first shaft hole), 184…positioning rod, 185…force spring, 186…shaft adjusting component, 186a…shaft hole, 190…roller side positioning component (corresponding to the second fixed part), 191…positioning hole, 200…control part, B1…bearing, B2…bearing, B3…bearing, S1…space part, T1…adhesive tape roll, T2…adhesive tape, T3…tape tube, U1…dust removal unit, U2…tape unit, W…workpiece

Claims

1. A dust removal device for removing dust from workpieces. The dust removal device is characterized in that... The dust removal device includes: A dust removal roller that removes dust from the upper or lower surface of the workpiece. A pair of adhesive tape holders that hold the roll of adhesive tape from both ends thereon, wherein... The adhesive tape roll transfers the dust adhering to the dust removal roller in a pressed state. A uniform pressing mechanism, disposed inside the tape tube of the adhesive tape roll, is used to suppress axial variation of the pressing force applied by the adhesive tape roll to the dust removal roller; The uniform pressing mechanism includes: A retaining shaft, which extends along the axial direction in connection with a pair of adhesive tape holders, is eccentric from the center of rotation of the pair of adhesive tape holders, and does not rotate relative to the adhesive tape roll. Multiple pressing retainers are mounted axially along the retaining shaft and press the tape tube from the inner cylinder side; A pair of the adhesive tape holders includes: A pair of inner circumferential connecting portions that do not rotate relative to the adhesive tape roll. A pair of tape retaining supports, which rotate relative to the pair of inner circumferential connections, and are respectively inserted into one end and the other end of the tape tube; The retaining shaft extends in a straight line along the axial direction in a state of connecting a pair of the inner peripheral connecting portions. It has a reinforcing shaft that connects a pair of inner circumferential connecting portions in a state parallel to the retaining shaft, thereby preventing twisting between the pair of adhesive tape holders.

2. The dust removal device according to claim 1, characterized in that, The dust removal roller is rotatably supported at both ends by support blocks. The dust removal roller is provided with an upper dust removal roller for removing dust from the upper surface of the workpiece and a lower dust removal roller for removing dust from the lower surface of the workpiece. A dust removal roller synchronization mechanism is provided, which synchronizes the descent of one end and the other end of the upper dust removal roller when it is pressed by the adhesive tape roll on the upper side. The dust removal roller synchronization mechanism includes: A rotating shaft is configured to be parallel to and only a predetermined distance away from the upper dust removal roller, and is capable of rotating about a central axis. A pair of rotating arms, the base ends of which are mounted on one end and the other end of the rotating shaft along the axial direction, rotate about the central axis as the rotating shaft rotates, and the front ends of which are mounted on the support block.

3. The dust removal device according to claim 2, characterized in that, A pair of dust removal roller cylinders are provided, which move the pair of upper dust removal rollers up and down via a pair of support blocks. It has a control unit that controls the movement of a pair of cylinders for the dust removal rollers. When the pressure on the workpiece is released, the control unit activates the cylinders of the pair of dust removal rollers.

4. The dust removal device according to claim 2, characterized in that, The pair of support blocks are guided up and down by a pair of first linear guides. The up-and-down movement of the pair of adhesive tape holders is guided by a pair of second linear guides.

5. The dust removal device according to claim 1, characterized in that, The dust removal rollers constitute a dust removal unit. The adhesive tape holder and the uniform pressing mechanism constitute an adhesive tape unit. A positioning mechanism is provided for positioning the dust removal unit and the tape unit; The positioning mechanism has: Long, narrow positioning rod The first fixing part is disposed in the tape unit and has a first shaft hole through which the positioning rod is inserted. A lever-pressing cylinder operates by pressing the positioning lever into place, and The second fixing part is provided in the dust removal unit and has a second shaft hole. When the positioning rod is pressed in by the action of the rod pressing cylinder, the positioning rod is inserted into the second shaft hole while maintaining the insertion state of the positioning rod in the first shaft hole.

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