JP7174542B2 - Dust collector and processing equipment provided with the same - Google Patents

Description

TECHNICAL FIELD The present invention relates to a dust collector and a processing apparatus having the same.

Japanese Patent Laid-Open No. 2002-200000 discloses a chip collection device provided for a cutting device that cuts a workpiece, and collects chip generated by cutting through a chip collection cover and a hose with the suction force of a suction device. The dust collection cover of this chip collection device has a semi-cylindrical shape with an upper opening closed, and has a contact portion at one end of the side peripheral end that comes into contact with the work during processing of the work.

However, since the bottom of the dust collection cover is open in the above-described chip collection device, there is a possibility that the chips may fall off from the bottom of the dust collection cover and adhere to the workpiece and the housing of the cutting device. be. As a result, the quality of the work as a product is lowered, and the trouble of cleaning the work and the inside of the housing of the cutting device is required. Moreover, since the contact portion contacts the work, the contact portion may damage the work.

JP 2016-83724 A

SUMMARY OF THE INVENTION An object of the present invention is to provide a dust collector capable of reliably collecting dust generated during machining of a work, and a processing apparatus equipped with the dust collector.

The dust collector is used in a processing device that processes a workpiece with a tool that rotates about a rotation axis and has a blade on a plane parallel to the rotation axis. and a suction device for sucking air from the suction port. The cover passes through the inside and outside of the cover, serves as an intake for machining chips of the workpiece, and has an opening through which a part of the tool protrudes outside the cover in a direction orthogonal to the rotation axis of the tool, and an opening for turning the cover. and a slide portion that slides along the suction port. The slide portion has a connection opening that penetrates the inside and outside of the cover and always connects the inside of the cover to the suction port within the range of sliding to the suction port.

The dust collector may be provided on the outer surface of the slide portion, and may include a shield portion that shields a portion of the connection port that is exposed to the outside and that rotates together with the cover.

In the dust collector, the shielding portion may include the hanging portion, the belt, and the guide portion. The belt is hung on the hanging portion and has a pair of facing portions facing each other. One of the facing portions is connected to the cover on the outside of the connection port on one side with the suction port as a boundary in the turning direction of the cover, is guided along the slide portion by the guide portion, and is attached to the outside of the one side with the suction port as a boundary. Shield the connection port exposed to The other facing portion is connected to the cover outside the connection port on the other side with the suction port as a boundary in the turning direction of the cover, is guided along the slide portion by the guide portion, and is connected to the outside of the other side with the suction port as a boundary. Shield the connection port exposed to

The dust collector may include a controller. The control unit controls the turning of the cover so that the normal direction of the opening is orthogonal to the tangential direction of the tool to the work when the work is processed by the tool.

The dust collector may have a plurality of connection ports in the slide portion. When a plurality of connection ports are provided on the slide portion in the turning direction of the cover, the distance between adjacent connection ports in the turning direction is shorter than the length of the suction port in the turning direction of the cover.

A processing device includes the dust collector, a processing section, and a fixing device for fixing a work. The processing section includes a rotating device and a tool. The rotating device rotates the tool around the rotation axis. The tool has a blade on a plane parallel to the axis of rotation, is housed inside the cover, and partially protrudes outward from the opening of the cover in a direction orthogonal to the axis of rotation of the tool. The processing part and the fixing device are relatively movable in a direction perpendicular to the rotation axis of the tool.

According to the dust collector and the processing apparatus of the present invention, it is possible to reliably collect processing waste generated during processing of a work.

It is a side view which shows a processing apparatus. It is a front view which shows a dust collector and a processing part. It is a top view which shows a dust collector and a processing part. It is a side view which shows a dust collector and a processing part except the belt of a shielding part. It is a longitudinal cross-sectional view which shows a dust collector. It is an exploded perspective view showing a dust collector. It is a top view which shows a dust collector. 8 is an enlarged plan view of the periphery of the cover in FIG. 7; FIG. It is a top view which shows a cover. It is a front view showing a cover. It is a rear view showing a cover. It is a side view showing a cover. It is a front view which shows the positional relationship of a suction port and a connection port. FIG. 10 is a front view showing the positional relationship between the suction port and the connection port when the cover is turned; FIG. 4 is a plan view showing the dust collector with the cover turned. FIG. 4 is a plan view schematically showing a state of machining a work;

An embodiment of the present invention will be described below with reference to the drawings. In the drawings, the X direction corresponds to the front-back direction, the Y direction corresponds to the left-right direction, and the Z direction corresponds to the up-down direction.

The processing apparatus of the embodiment includes a processing apparatus main body 90, a dust collector 10, a processing section 70, and a fixing device 80, as shown in FIG.

The processing device main body 90 supports or fixes each configuration of the processing section 70 and the dust collector 10, as shown in FIGS.

The dust collector 10 includes a suction device 20, a cover 30, a turning device 40, a shielding section 50, and a control section 60, as shown in FIGS.

The suction device 20 is a device for sucking air, and as shown in FIGS. , a suction portion 24 and a connection portion 28 .

The dust collection chamber 21 is a chamber in which sucked processing waste is collected. A suction driving device 22 for driving air suction is provided in the dust collection chamber 21 . For example, a fan or the like is used as the suction drive device 22 .

The suction passage 23 is a passage for flowing sucked air into the dust collection chamber 21, and as shown in FIGS. 4 to 7, includes a suction passage main body 23a and an inlet portion 23b. The suction passage main body 23 a has a substantially rectangular parallelepiped shape extending in the front-rear direction, is hollow, and is supported by the processing apparatus main body 90 . The inlet portion 23b has a cylindrical shape, the rear end of which is connected to the front surface of the suction passage main body 23a, and the inside of which is connected to the inside of the suction passage main body 23a. The insides of the dust collection chamber 21 and the suction passage 23 are connected via a tubular connecting passage 26 .

As shown in FIGS. 4 to 8, the suction section 24 includes a suction section main body 24a, a discharge section 24b, a slide guide section 24c, and a suction port 24d. The suction unit main body 24a is supported by the processing apparatus main body 90, is hollow, and has a front portion narrower in width in the left-right direction than a rear portion. The discharge part 24b is cylindrical, and its front end is connected to the rear surface of the suction part main body 24a, and the inside thereof is connected to the inside of the suction part main body 24a. The front surface of the suction portion main body 24a serves as a slide guide portion 24c that guides the turning of the slide portion 34 of the cover 30, which will be described later. The slide guide portion 24c has an arcuate shape when viewed in the vertical direction, and protrudes outward from the side surface of the suction portion main body 24a. The slide guide portion 24c is provided with a suction port 24d penetrating inside and outside in the vertical direction at the center in the horizontal direction. The suction port 24d has a substantially rectangular shape when viewed from the front-rear direction, and is connected to the inside of the suction portion main body 24a. The inside of the suction portion 24 is connected to the inside of the cover 30 via the suction port 24d.

As shown in FIGS. 4 to 7, the discharge portion 24b of the suction portion 24 and the inlet portion 23b of the suction passage 23 are inserted into a cylindrical connecting portion 28, and the inside of the suction portion 24 and the suction passage 23 is , are connected via a connecting portion 28 .

The cover 30 accommodates the tool 76 therein and is for taking in machining debris together with air. The cover 30 is supported by a pivoting device 40 and pivots about an axis parallel to the rotation axis of the tool 76 .

In this embodiment, the cover 30 includes an opening wall 31, a slide portion 34, and a pair of closing walls 36, 36, as shown in FIGS. 1-12. A space is formed inside the cover 30 by the opening wall 31 , the slide portion 34 and the pair of blocking walls 36 , 36 . The inside of the cover 30 is sized to accommodate the tool 76 . The cover 30 is arranged so that the slide portion 34 is in contact with or close to the slide guide portion 24c of the suction portion 24 and the suction port 24d.

As shown in FIGS. 5, 6 and 10, the opening wall 31 is made of a substantially rectangular plate-like member, and the wall surface thereof is parallel to the rotating shaft (vertical direction) of the tool 76. As shown in FIG. The opening wall 31 is provided with a substantially rectangular opening 32 penetrating inside and outside. The inside and outside of the cover 30 are connected through the opening 32 . The opening 32 serves as an intake for machining scraps of the work W, and is for protruding a part of the tool 76 outside the cover 30 in a direction perpendicular to the rotation axis of the tool 76 . The length of the opening 32 in the horizontal direction (the width of the opening 32) is longer than the length of the tool 76 (diameter of the tool 76) in that direction, which will be described later. Further, the opening wall 31 is provided with a through portion 33 penetrating inside and outside in the vertical direction at the center in the horizontal direction. The through portion 33 is connected to the opening portion 32 . The length (width) of the through portion 33 in the left-right direction is equal to or greater than the diameter of a rotating portion main body 74a of a rotating device 72, which will be described later.

As shown in FIGS. 4 to 6 and 10 to 12, the slide portion 34 is made of a plate-like member and has an arc shape when viewed from above and below, and each of the side ends of the opening wall 31 extends. It is connected to each of the side ends and forms a peripheral wall around the pivot axis of the cover 30 together with the opening wall 31 . The slide portion 34 slides along the suction port 24d and the slide guide portion 24c of the suction portion 24 when the cover 30 is turned. In order to always connect the inside of the cover 30 to the suction port 24d within the range where the slide portion 34 slides to the suction port 24d, the slide portion 34 is provided with a connection port 35 passing through the inside and outside thereof. The connection port 35 is provided within a range in which at least the slide portion 34 slides to the suction port 24d in the direction in which the cover 30 turns. In addition, the connection port 35 is provided within a range where the suction port 24d exists at least in the direction (vertical direction) parallel to the rotation axis of the tool 76 . The connection port 35 may be of any type as long as it is provided in such a manner. The direction WHEREIN: It is provided in multiple numbers. As shown in FIGS. 13 and 14, the distance L1 between the connection port 35 in the turning direction of the cover 30 is such that the connection port 35 is always connected to the suction port 24d no matter what angle the cover 30 turns. 30 is shorter than the length L2 (width) of the suction port 24d in the turning direction. Moreover, the plurality of connection ports 35 in the vertical direction are provided within a range in which the suction port 24d exists in the vertical direction.

As shown in FIGS. 3 and 5 to 9, the blocking wall 36 is made of a plate-like member and has substantially the same shape as the outer edges of the opening wall 31 and the slide wall when viewed from above and below. It has a shape in which a part of the is notched linearly. Each blocking wall 36 is connected to the upper end or lower end of the opening wall 31 and the slide portion 34 . Each blocking wall 36 is provided with a through portion 37 penetrating inside and outside from the center to the front end thereof. The through portion 37 is connected to the through portion 33 of the opening wall 31 . The length (width) of the penetrating portion 37 in the left-right direction is equal to or greater than the diameter of a rotating device main body 72a, which will be described later. Further, the rear end of the through portion 37 has an arc shape when viewed from the vertical direction. A rotating portion 74 of a rotating device 72 , which will be described later, is passed through the cover 30 through the through portion 37 . Further, the through portion 37 and the through portion 33 allow the rotating portion 74 of the rotary drive device 72 d to pass through the cover 30 from the front side of the opening wall 31 .

The turning device 40 is for turning the cover 30, and as shown in FIGS. , is equipped with The swivel portion 42 serves as a swivel axis of the cover 30 . The swiveling portion 42 is tubular, and has an inner diameter larger than the outer diameter of the rotating portion main body 74a so that the rotating portion main body 74a of the rotating device 72, which will be described later, is inserted therein. The turning part 42 has an axis parallel to the vertical direction, and is supported by the processing device main body 90 via a bearing 43 so as to be able to turn (rotate) about the axis. The swivel portion 42 is connected at its lower end to the closing portion on the upper side of the cover 30 so that its axis coincides with the center of the arc at the rear end of the through portion 37 .

A pulley 46 is provided behind the swivel portion 42 . The pulley 46 is supported by the turning drive device 44 so as to be able to turn (rotate) around the vertical axis. The turning drive device 44 drives turning (rotation) of the pulley 46 and is attached to the processing device main body 90 . A motor or the like is used as the turning drive device 44 . A belt 48 is stretched between the revolving portion 42 and the pulley 46 . A timing belt is used as the belt 48 .

When the pulley 46 is turned by the turning driving device 44 , the turning part 42 and the cover 30 connected thereto are turned via the belt 48 . In this embodiment, the swivel part 42 and the cover 30 connected thereto swivel left and right within a range of +90° to -90° with reference to clockwise rotation. FIG. 15 shows a state in which the cover 30 has been turned +90°.

The shielding portion 50 shields the portion of the connection port 35 that is exposed to the outside, and rotates together with the cover 30 . The shielding portion 50 includes a pair of hanging portions 52, 52, a belt 54, and a guide portion 58, as shown in FIGS.

As shown in FIGS. 1, 3, 4 and 6, the pair of hooks 52, 52 are located at substantially the same height as the cover 30, and are located behind the suction passage 23 with the center of the cover 30 as a boundary. They are arranged at intervals in the left and right direction. Each hanging portion 52 is composed of a cylindrical body portion 52a and a cylindrical shaft portion 52b having a diameter smaller than that of the body portion 52a and coaxial with the body portion 52a and connected to both upper and lower ends of the body portion 52a. ing. The hanging portion 52 has a body portion 52a and a shaft portion 52b whose central axes are parallel to the vertical direction, and the shaft portion 52b is passed through a through hole of a support member 52c connected to the processing apparatus main body 90. It is rotatably supported by the processing apparatus main body 90 as. A portion of the body portion 52a of the hook portion 52 is positioned outside the suction passage 23 and the suction portion 24 in the left-right direction when viewed in the front-rear direction.

As shown in FIGS. 1, 3 and 6 to 8, the belt 54 is hung on the hanging portion with its surface parallel to the vertical direction. The length (width) of the belt 54 in the vertical direction is longer than the length of the connection port 35 of the slide portion 34 in the vertical direction. The belt 54 has a pair of facing portions 54a, 54a facing each other in the left-right direction. The pair of facing portions 54a, 54a are located outside the suction passage 23 and the suction portion 24 when viewed from above and extend along the side surfaces thereof. One facing portion 54a is connected to the cover 30 outside the connection port 35 on one side of the suction port 24d in the turning direction of the cover 30, is guided along the slide portion 34 by the guide portion 58, and is connected to the suction port 24d. The connection port 35 exposed to the outside is shielded on one side of the boundary. The other facing portion 54a is connected to the cover 30 on the outside of the connection port 35 on the other side of the suction port 24d in the turning direction of the cover 30, and is guided along the slide portion 34 by the guide portion 58 for suction. The connection port exposed to the outside on the other side of the port 24d is shielded. More specifically, the left facing portion 54a of the belt 54 extends from the hanging portion 52 in the front-rear direction along the side surfaces of the suction passage main body 23a and the suction portion main body 24a. The connection port 35 on the left side of the suction port 24d is covered along the left side portion of the outer surface of 34 from the suction port 24d, and the tip thereof slides outside the connection port 35 on the leftmost side in the turning direction of the slide portion 34. It is connected to the outer surface of portion 34 . The facing portion 54a on the right side of the belt 54 extends from the hanging portion 52 in the front-rear direction along the side surface of the suction passage main body 23a. , and its tip is connected to the outer surface of the slide portion 34 outside the rightmost connection port 35 in the turning direction of the slide portion 34 .

As shown in FIGS. 1, 4 and 6 to 8, the guide portion 58 contacts each facing portion 54a of the belt 54 behind the slide guide portion 24c of the suction portion 24 from the outside, , and are positioned at approximately the same height as the cover 30, respectively. The guide portion 58 is composed of a cylindrical body portion 58a and a cylindrical shaft portion 52b having a diameter smaller than that of the body portion 58a and coaxial with the body portion 58a and connected to both upper and lower ends of the body portion 58a. there is In the guide portion 58, the central axes of the body portion 58a and the shaft portion 52b are parallel to the vertical direction, and the shaft portion 52b is passed through a through hole of a support member 58c connected to the suction portion main body 24a. It is supported by the suction unit main body 24a so as to be rotatable about the vertical direction as an axis. A portion of the body portion 58a of the guide portion 58 that contacts the inner side of the facing portion 54a of the belt 54 is positioned outside the suction passage 23 and the suction portion 24 in the left-right direction. By providing the guide portion 58 behind the slide guide portion 24c, the facing portion 54a of the belt 54 around the slide portion 34 of the cover 30 can be brought into contact with the outer surface of the slide portion 34 to follow.

The guide portion 58 may be provided with at least one that contacts the outer side of the facing portion 54 a of the belt 54 , but by also including one that contacts the inner side of the facing portion 54 a of the belt 54 , It is possible to prevent the portion 54 a from interfering with the suction passage 23 and the suction portion 24 . note that. The hanging portion 52 and the guide portion 58 may not rotate vertically.

The shielding portion 50 rotates (moves) the belt 54 as the cover 30 rotates, and always covers the portion of the connection port 35 of the slide portion 34 that is exposed to the outside.

The control unit 60 is connected to the turning drive device 44 and controls the turning drive device 44 . The control unit 60 controls the turning drive device 44 so that the normal direction N of the opening 32 of the cover 30 is substantially orthogonal to the tangential direction T of the tool 76 with respect to the work W when processing the work W with the tool 76 to be described later. to control.

By driving the suction driving device 22, the dust collector 10 sucks air from the opening 32 of the cover 30, and the sucked air flows through the suction portion 24, the connection portion 28, the suction passage 23, and the connection passage 26. and sent to the dust collection chamber 21.

The processing unit 70 includes a rotating device 72 and a tool 76, as shown in FIGS. 1-5. The rotating device 72 is for rotating the tool 76, and includes a pair of pulleys 72a and 72b, a belt 72c, a rotation driving device 72d, and a pair of rotating parts 74 and 74.

The pair of pulleys 72a and 72b are arranged at the same height with a space therebetween in the front-rear direction. The pulley 72a on the rear side is rotatably supported by a rotation driving device 72d about a vertical axis. The rotation drive device 72d rotates the pulley 72a on the rear side, and is attached to the processing device main body 90. As shown in FIG. A motor or the like is used as the rotation drive device 72d. As will be described later, the pulley 72b on the front side is connected to the rotating portion 74 and supported by the processing device main body 90 so as to be rotatable about the vertical direction. A belt 72c is stretched over the pair of pulleys 72a and 72b. A timing belt or the like is used for the belt 72c. The rotation driving device 72d is connected to the control section 60, and the rotation of the tool 76 is controlled by controlling the rotation driving device 72d by the control section 60. FIG.

The pair of rotating parts 74, 74 are coaxially opposed to each other in the vertical direction. Each rotating portion 74 includes a rotating portion main body 74a and a tool fixing portion 74b. The rotating portion main body 74a is cylindrical. The tool fixing portion 74b is for fixing the tool 76, and is connected to one end of the rotating portion main body 74a. In the upper rotating portion 74, the rotating portion main body 74a is passed through the inside of the turning portion 42, the through hole (not shown) of the processing apparatus main body 90, the through portion 37 and the cover 30 coaxially with the turning shaft. The upper rotating part 74 has a rotating part main body 74 a supported by the processing device main body 90 by a bearing 75 so as to be rotatable about the vertical direction, and the upper end of the rotating part main body 74 a is connected to a pulley on the front side of the rotating device 72 . 72b, and the lower end of the rotating portion main body 74a is connected within the cover 30 to the tool fixing portion 74b. The rotating portion main body 74 a of the lower rotating portion 74 is passed through the penetrating portion 37 and the cover 30 coaxially with the turning shaft. In the lower rotating part 74, the rotating part body 74a is supported by the processing device body 90 by means of bearings 75 so as to be rotatable about the vertical direction. It is connected to the fixing portion 74b.

The tool 76 is for machining the workpiece W, and has a blade 76b on a plane parallel to the rotation axis of the rotating portion 74. As shown in FIG. As shown in FIGS. 1 to 8, a plane barrel is used as the tool 76 in this embodiment. Specifically, the tool 76 includes a cylindrical tool body 76a and a blade 76b provided on the side surface (side peripheral surface) of the tool body 76a. The blades 76b extend in the vertical direction, and are provided in plurality on the side peripheral surface of the tool body 76a. The tool 76 is fixed inside the cover 30 by the tool fixing portions 74b of the upper and lower rotating portions 74, 74 with its axis parallel to the vertical direction. It sticks out from 32.

The rotating device 72 may have a main shaft inside the cover 30 . In this case, the penetrating portion 37 of the cover 30 is unnecessary. Also, the tool 76 may be something other than a plane cylinder, such as an end mill.

As shown in FIG. 1, the fixing device 80 includes a pair of fixing portions 82, 82 that face each other in the vertical direction. The pair of fixing parts 82 , 82 each includes a fixing part main body 84 and a workpiece fixing part 86 . The fixing portion main body 84 has a columnar shape, and its axis is parallel to the vertical direction. The work fixing portion 86 has a portion in contact with the work W and is connected to the upper end or the lower end of the fixing portion main body 84 . Each fixed part 82 is moved vertically by a fixed part elevating mechanism (not shown). Further, each fixed portion 82 rotates (revolves) around a vertical axis by a fixed portion rotating mechanism (not shown). The stationary part elevating mechanism and the stationary part rotating mechanism are connected to the control part 60 , and by controlling the stationary part elevating mechanism and the stationary part rotating mechanism with the control part 60 , the elevation and rotation of the stationary part 82 are controlled.

The dust collector 10 having the processing portion 70 and the fixing portion 82 are relatively movable in the front-rear direction and the left-right direction. In this embodiment, the dust collector 10 having the processing section 70 is moved in the left-right direction by a moving mechanism (not shown), and the fixing device 80 is moved in the front-rear direction by a fixing part moving mechanism (not shown). The moving mechanism and the fixing part moving mechanism are connected to the control part 60, and by controlling the moving mechanism and the fixing part moving mechanism with the control part 60, the dust collector 10 provided with the processing part 70 and the fixing part 82 can be moved. controlled.

In the processing apparatus, the suction drive device 22 is driven and the rotation drive device 72d is driven to rotate the tool 76, moving the dust collector 10, the processing section 70, and the fixing device 80 to which the workpiece W is fixed back and forth. The side of the workpiece W is cut by the edge 76b on the side of the tool 76 while the tool 76 is relatively moved in the direction and the left-right direction. When the workpiece W is machined, the control unit 60 controls the swivel drive device 44 so that the cover 30 is rotated so that the normal direction N of the opening 32 is the tangential direction of the tool 76 to the workpiece W, as shown in FIG. Turn so as to be substantially orthogonal to T. Processing waste of the work W generated by processing the work W is sucked from the opening 32 of the cover 30, passes through the interior of the cover 30, the suction portion 24, the connection portion 28, the suction passage 23, and the connection passage 26, It is carried to the dust collection chamber 21 .

The processing apparatus described above can process the side surface of the work W into an arbitrary shape, such as processing the side surface of the work W into a curved shape when viewed from above and below. The work W to be processed by the above-described processing apparatus may be of any kind. For example, the work W may be a laminate of resin films.

The dust collecting device 10 and the processing device described above can reliably suck processing waste generated in the processing of the work W from the opening 32 of the cover 30, so that the processing waste does not adhere to the work W and the product of the work W is produced. As a result, the quality of the workpiece W can be maintained high, and the trouble of cleaning the workpiece W can be saved. Further, in the dust collector 10 and the processing apparatus, the cover 30 does not come into contact with the work W, so the work W is not damaged.

The dust collecting device 10 and the processing device are provided with a rotating shielding part 50 that rotates together with the cover 30 and shields a portion of the connection port 35 exposed to the outside, thereby allowing processing to be carried out by suction from the connection port 35 exposed to the outside. Since the dust can be prevented from scattering to the outside of the cover 30, the trouble of cleaning the processing apparatus can be saved.

The dust collector 10 and the processing apparatus are provided with a control unit 60. When the work W is processed by the tool 76, the control unit 60 causes the normal direction N of the opening 32 to be aligned with the tangential direction T of the tool 76 with respect to the work W. Since the turning of the cover 30 is controlled so as to be substantially orthogonal, even when the work W is processed into an arbitrary shape such as by processing the work W into a curved surface, it is possible to reliably collect processing waste. .

Since the dust collector 10 and the processing apparatus are provided with a plurality of connection ports 35 , the rigidity and strength of the cover 30 are improved as compared with the case where there is only one connection port 35 . Further, when a plurality of connection ports 35 are provided in the turning direction of the cover 30, the space L1 between the connection ports 35 adjacent to each other in the turning direction is made shorter than the length L2 of the suction port 24d in the turning direction of the cover 30. Since the connection port 35 is connected to the suction port 24d no matter what angle the cover 30 rotates, the dust can be reliably collected regardless of the angle the cover 30 rotates.

The dust collector 10 and the processing device of the present invention are not particularly limited to the above-described embodiments, and can be appropriately modified within the scope of the present invention.

REFERENCE SIGNS LIST 10 dust collector 20 suction device 21 dust collection chamber 22 suction driving device 23 suction passage 23a suction passage main body 23b inlet portion 24 suction portion 24a suction portion main body 24b discharge portion 24c slide guide portion 24d suction port 26 connection passage 28 connection portion 30 cover 31 Opening wall 32 Opening 33 Passing part 34 Slide part 35 Connection port 36 Blocking wall 37 Penetration part 40 Turning device 42 Turning part 43 Bearing 44 Turning drive device 46 Pulley 48 Belt 50 Shielding part 52 Hanging part 52a Body part 52b Shaft part 52c Supporting member 54 Belt 54a Facing part 58 Guide part 58a Body part 58b Shaft part 58c Supporting member 60 Control part 70 Processing part 72 Rotating device 72a, 72b Pulley 72c Belt 72d Rotation driving device 74 Rotating part 74a Rotating part body 74b Tool fixing part 75 Bearing 76 Tool 76a Tool body 76b Blade 80 Fixing device 82 Fixing part 84 Fixing part main body 86 Work fixing part 90 Processing device main body L1 Spacing between connection ports L2 Length of suction port N Normal direction T Tangential direction W Work

Claims (4)

A dust collector for use in a processing device that rotates about a rotation axis and processes a workpiece with a tool having a blade on a plane parallel to the rotation axis,
a cover capable of accommodating the tool inside;
a turning device for turning the cover about an axis parallel to the rotation axis of the tool;
a suction device for sucking air from the suction port,
The cover has an opening that passes through the inside and outside of the cover and serves as an intake for machining chips of the work, and through which a part of the tool protrudes outside the cover in a direction perpendicular to the rotation axis of the tool. and a slide portion that slides along the suction port when the cover is turned,
The slide portion has a connection port penetrating through the inside and outside thereof and always connecting the inside of the cover to the suction port within the range of sliding to the suction port,
a shielding part provided on the outer surface of the slide part, shielding a portion of the connection port exposed to the outside, and rotating together with the cover;
The shielding portion includes a hook portion, a belt, and a guide portion,
The belt is hung on the hanging part and has a pair of facing parts facing each other,
One of the facing portions is connected to the cover on the outside of the connection port on one side with the suction port as a boundary in the turning direction of the cover, is guided along the slide portion by the guide portion, and is guided to the suction port. Shielding the connection port exposed to the outside on one side of the boundary,
The other facing portion is connected to the cover on the outside of the connection port on the other side of the suction port in the turning direction of the cover, is guided along the slide portion by the guide portion, and is connected to the suction port. A dust collector characterized in that the connection port exposed to the outside on the other side of the boundary is shielded. Equipped with a control unit,
The control unit controls the turning of the cover so that a normal direction of the opening is perpendicular to a tangential direction of the tool to the work when the work is machined by the tool. Item 1. The dust collector according to item 1. 3. The dust collector according to claim 1, wherein the slide portion is provided with a plurality of the connection ports. A dust collector according to claim 1, 2 or 3;
a processing unit;
a fixing device for fixing the workpiece,
The processing unit includes a rotating device and a tool,
The rotating device rotates the tool around a rotation axis,
The tool has a blade on a plane parallel to the rotation axis, is housed inside the cover, and partially protrudes outward from the opening of the cover in a direction orthogonal to the rotation axis of the tool. cage,
A processing apparatus, wherein the processing section and the fixing device are relatively movable in a direction orthogonal to the rotation axis of the tool.

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