TWI488714B - Surface treatment device - Google Patents

Description

Surface treatment device

The present invention relates to a surface treatment apparatus for surface-treating a projection material onto a surface of a workpiece such as a wire.

In the surface treatment apparatus, for example, a wire material is carried into a casing, and a projection material is projected onto a surface of a wire or the like to be carried by a bead blaster (see, for example, Japanese Laid-Open Patent Publication No. 2003-334759).

However, such devices have room for improvement in terms of suppressing unwanted projections.

The present invention has been made in view of the above facts to obtain a surface treatment apparatus capable of suppressing unnecessary projection.

A surface treatment apparatus according to a first aspect of the present invention is a surface treatment apparatus comprising: a projection device that projects a projection material to an object to be processed that is transported in a predetermined conveyance direction; and the projection device is disposed above the conveyance direction a detection means for detecting the presence or absence of the object to be processed, at least one of the side and the downstream side, and a supply of the projection material for supplying the projection material to the projection device and changing the supply amount of the projection material to the projection device And means for controlling a supply amount of the projection material of the projection material supply device to the projection device based on the detection result of the detection means.

According to the surface treatment apparatus of the first aspect of the present invention, the projection material supply device supplies the projection material to the object to be processed which is conveyed in a predetermined conveyance direction. The detecting means is provided with at least one of the flow side and the downstream side in the transport direction, and the detecting means detects the presence or absence of the object to be processed. Here, the supply amount of the projection material to the projection device of the projection material supply device is adjusted based on the detection result of the detection means. Therefore, the extra projection is suppressed.

The surface treatment apparatus according to the first aspect of the invention, wherein the surface treatment apparatus according to the first aspect of the invention is characterized in that: the speed detecting means for detecting the speed at which the object to be processed is transported is provided; The detection result of the speed detecting means adjusts the supply amount of the projection material to the projection device of the projection material supply device.

According to the surface treatment apparatus of the second aspect of the present invention, the speed at which the object to be processed is transported is detected by the speed detecting means. Here, the control means adjusts the supply amount of the projection material to the projection device of the projection material supply device based on the detection result of the speed detecting means. Therefore, the extra projection is effectively suppressed.

The surface treatment apparatus according to the first aspect of the invention, wherein the object to be processed is formed by a projection material projected by the projection device. In the projection chamber of the surface processing, the housing for the loading and unloading of the object to be processed is formed, and the housing is disposed on the inlet side of the housing and the object to be processed is passed through the inside. When a cylindrical portion is disposed inside the first cylindrical portion and passes through the object to be processed, the first object is formed between the object to be processed and the inner surface of the first cylindrical portion. a first sealing portion of the sealing body; and a second cylindrical portion disposed on the outlet side of the casing and passing through the inside of the object and disposed inside the second cylindrical portion and processed in the foregoing When the object passes, the second sealing portion of the second sealing body for leakage prevention is formed between the object to be processed and the inner surface of the second cylindrical portion; the gas outflow port is disposed in the second portion And generating the air flow more to the seal portion of the conveyance direction toward the downstream side of the air flow inside the casing of the generator.

According to the surface treatment apparatus of the third aspect of the present invention, the object to be processed carried in from the inlet of the casing reaches the projection chamber of the casing, and the projection material is projected by the projection device. The object to be processed after being projected is carried out from the outlet of the casing. Further, a first sealing portion is disposed on the inlet side of the casing, and the first sealing portion is provided with a first sealing body inside the first cylindrical portion through which the object to be processed can pass. The first sealing system prevents leakage of the projection material between the object to be processed and the inner surface of the first cylindrical portion when the object to be processed passes. Therefore, the leakage of the projecting projection material from the inlet side is blocked by the first sealing portion.

On the other hand, the second sealing portion is disposed on the outlet side of the casing, and the second sealing portion is disposed on the inner side of the first cylindrical portion through which the object to be processed passes. The second sealing system prevents leakage of the projection material between the object to be processed and the inner surface of the second cylindrical portion when the object to be processed passes. Therefore, basically, the leakage of the projected projecting material from the outlet side is prevented by the second sealing portion. However, there is a possibility that the projecting material remaining on the object to be processed is carried out along with the object to be processed. However, in the present invention, the gas flow outlet of the airflow generating device is disposed on the flow side of the second sealing portion below the transport direction, and the airflow generating device generates the airflow to the inside of the casing, so that even if The target material remains on the object to be processed, and the projectile material is returned to the inside of the casing.

A surface treatment apparatus according to the first aspect of the invention, wherein the surface treatment apparatus according to the first to third aspect of the invention has a bucket type including a projection material projected by the projection device toward the upper side of the casing a circulation device configured to circulate the projection material to the projection device; a separation path provided in the circulation path of the circulation device, and separating and separating the foreign matter other than the projection material and the projection material that is projected from the projection material a dust collector connected to the aforementioned separator and attracting air containing dust.

According to a fourth aspect of the present invention, a projection material projected by the projection device is conveyed to an upper side of the casing by a bucket elevator, and the projection material is projected by the circulation device including the bucket elevator. The device cycles. A separator is disposed in the circulation path of the circulation device, and the foreign matter other than the projection material and the projection material that is projected from the projection material are separated by a separator. Further, the dust-containing air is sucked by a dust collector connected to the aforementioned separator. The suction of the dust collector causes the inside of the casing through the separator to become a negative pressure, so that the airflow generated by the airflow generating device to the inside of the casing easily enters the inside of the casing, and unfortunately passes through the projection material of the second sealing portion to the casing. The inside returns efficiently. That is, the projection material is recycled, and leakage of the projection material or foreign matter to the outside of the device is effectively prevented or suppressed.

As described above, the surface treatment apparatus according to the present invention has an excellent effect of suppressing unnecessary projection.

The present application is based on Japanese Patent Application No. 2010-179873, filed on Jan.

In addition, the present invention should be fully understood by the detailed description of the specification. However, the detailed description and specific examples are illustrative of the preferred embodiments of the invention. It is obvious to the practitioner that the various changes and changes are explained in detail from the above.

The applicant has no intention to offer the public to any of the stated embodiments, and the disclosed change or substitute case, even if the language may not be included in the scope of the patent application, is also based on the equalization theory. Part of the invention.

In the description of the specification or the scope of the patent application, the use of the singular and plural referents are to be construed as the singular and plural. The use of any of the exemplified or exemplified terms in the specification (such as "the", etc.) is merely intended to be illustrative, and is not intended to limit the scope of the invention. By.

[First Embodiment]

The bead apparatus of the surface treatment apparatus according to the first embodiment of the present invention will be described with reference to Figs. 1 to 8 . In Fig. 1, the beading device 10 is shown in a front view. In Fig. 2, the bead device 10 is shown in a left side view.

Further, in the bead apparatus 10 of the present embodiment, the wire 12 made of metal is used as an object to be processed. The arrow X appropriately displayed in the drawing indicates the conveyance direction in which the wire 12 is conveyed (hereinafter referred to as "wire conveyance direction").

The bead supply device (not shown) is disposed on the flow side (the left side in the drawing) of the bead apparatus 10 shown in FIG. 1 in the wire conveyance direction (the wire traveling direction). The wire supply device is configured to supply the wire 12 of the bead apparatus 10, and includes a winding portion around which the wire 12 before the processing of the bead device 10 is wound, and the wire 12 wound from the winding portion is sprayed. The loading side of the bead device 10 guides the rotor 14 guided by the rotor 14.

Further, a winding device (not shown) is disposed on the flow side (the right side in the drawing) of the bead apparatus 10 shown in Fig. 1 below the wire conveyance direction (the wire traveling direction). The winding device includes a reel that is driven to rotate by a drive motor, and the wire 12 that is carried out from the carry-out guide rotor 16 after being processed by the bead apparatus 10 is taken up at a predetermined speed and a predetermined tension by the reel. . Further, in addition to the above-described winding device, the wire material 12 is applied to an extracting machine (a device for drawing a wire 12 into a predetermined thickness by a hole die, and a wire traveling driving means for reciprocating and repeating the action of pulling the wire 12 to be pulled) The device) and so on.

As shown in FIG. 1, the bead apparatus 10 is provided with the case 18. A projection chamber 18A (also referred to as a "processing chamber" or a "mortar chamber") for processing the surface of the wire 12 by projection of the projection material of the wire 12 is formed inside the casing 18. In addition, the tank 18 is formed on the flow side (the left side in the drawing) in the wire conveyance direction (the wire traveling direction) to form the inlet 20 for loading the wire 12, and the flow side in the wire conveyance direction (the wire traveling direction) (in the figure) The right side) forms the outlet 22 for the wire material 12 to be carried out.

Further, a plurality of guide cylinder members (guide members) 24 are disposed inside the casing 18 along the conveyance path of the wire 12 at predetermined intervals. The guide tube member 24 is fixed to the case 18 and formed in a substantially cylindrical shape. The guide hole formed in the guide cylinder member 24 gradually decreases in diameter toward the flow side (the right side in the drawing) in the transport direction (the traveling direction of the wire), and the axis of the guide hole is disposed to be the transport path with the wire 12. The center is the same.

Among the plurality of guide tube members 24, two guide tubes 24 are provided in series on the flow side (the right side in the drawing) of the guide tube member 24 provided in the carry-in port 20 and the transfer port 22 in the respective wire conveyance directions (the wire traveling direction). A short cylindrical guiding cylinder 25. The guide hole formed in the guide cylinder 25 gradually decreases in diameter toward the flow side (the right side in the drawing) in the transport direction (the traveling direction of the wire), and the axis of the guide hole is disposed to be adjacent to the guide cylinder member 24. The axes of the guide holes are the same.

Further, four projection devices 26 are mounted on the left and right of the housing 18 above and below the transport path of the clip member 12. These four projection devices 26 are arranged at a predetermined interval in the wire conveying direction. The projection device 26 of the present embodiment is a centrifugal projection material projection device (an impeller unit, a centrifugal projection) that accelerates projection of a projection material (in this embodiment, an example of a steel ball) by a centrifugal force in a wire material 12 that is conveyed in a wire conveyance direction. means). That is, the projection device 26 projects the projection material from the up, down, left, and right directions to the wire 12 by providing four as described above. In the present embodiment, such projection is performed to remove adhering substances such as scale and rust adhering to the surface of the wire member 12. The projection device 26 is connected to an ECU (Electronic Control Unit) (not shown).

A projection material supply device 28 (flow rate adjustment device) as a projection material supply device is disposed above the projection device 26. The projection material supply device 28 is a device that supplies the projection material S to the projection device 26. The projecting material supply device 28 is disposed below the funnel 38A of the projecting material storage tank 38 for storing the projection material, and includes an outer casing 28C. The outer casing 28C is formed with an inner tubular portion 28C2 inside the outer tubular portion 28C1. Further, the projection material supply device 28 includes a projection material shutter 28A that can open and close the opening portion 28C3 of the lower portion of the inner tubular portion 28C2 of the outer casing 28C.

The opening and closing portion 28A1 of the arcuate plate-like opening and closing portion 28A1 opens and closes the lower opening portion 28C3 of the inner cylindrical portion 28C2, and includes a substantially triangular-shaped support portion 28A2 which is bent at a substantially right angle from one end of the opening and closing portion 28A1. The support portion 28A2 is disposed between the inner tubular portion 28C2 and the outer tubular portion 28C1, and protrudes from the upper end shaft portion 28J of the support portion 28A2 to rotatably support the outer tubular body 28C outside the tubular portion 28C1. Further, the support portion 28A2 protrudes from the end portion of the shaft portion 28J and the opening and closing portion 28A1 by a pin 28P. The pin 28P is slidably attached to one end of the arm 28B1 by a biasing means (not shown) in a position where the lower opening portion 28C3 is fully closed to the projecting material gate 28A (opening and closing portion 28A1). The other end of the arm 28B1 is rotatably mounted to the front end of the rod 28B2. Further, the base end of the rod 28B2 is fixed to the piston 28B3, and the piston 28B3 is reciprocally movable by the fluid pressure in the cylinder 28B4 (which is an example of a pneumatic cylinder in the present embodiment).

That is, the projection material supply device 28 can reciprocate by the piston 28B3 and the rod 28B2 expands and contracts to swing the projection material gate 28A, thereby changing the opening degree of the projection material shutter 28A. In the present embodiment, the projectile material shutter 28A can be set to be opened in two stages of full opening and half opening, and is set to be one of full opening, half opening, and full closing. As described above, by changing the opening degree of the projection material shutter 28A (the opening ratio to the opening area of the lower opening portion 28C3), the supply amount of the projection material to the projection device 26 can be changed (adjusted) in multiple stages. The projecting material supply device 28 is connected to the air supply source 29B through the air direction control device (electromagnetic valve or the like) 29A, and the air direction control device 29A is connected to the ECU 46. The ECU 46 controls the displacement of the piston 28B3 by controlling the air direction control device 29A.

As shown in FIG. 1, the circulation device 30 is connected to the projection device 26 via the projecting material supply device 28. The circulation device 30 is a device that conveys the projection material projected by the projection device 26 and circulates the projection device 26, and includes a screw conveyor 32 disposed on the bottom side of the casing 18 and a bucket elevator 34 extending in the vertical direction of the device. (Refer to Figure 2).

The screw conveyor 32 is horizontally disposed and extends in the axial direction in the wire conveying direction, and both ends of the shaft portion are rotatably supported on the casing 18 side. The screw conveyor 32 is connected to the drive motor 36 and is rotated by the driving force of the drive motor 36, and has a bilaterally symmetrical structure in which the projection material deposited on the lower portion of the casing 18 can be conveyed from the left and right sides in the drawing toward the center side. Screw part.

The center portion side of the screw conveyor 32 in the axial direction is disposed so that the collection port 34D of the bucket elevator 34 faces. In other words, the screw conveyor 32 is configured to carry the projecting material to the collection port 34D of the bucket elevator 34. Although the bucket elevator 34 is not described in detail because of a known structure, as shown in FIG. 2, the endless belt 34B is wound around the pulley 34A (shown only in the upper side in the figure) disposed on the upper and lower portions of the bead apparatus 10, A plurality of buckets 34C are attached to the endless belt 34B. Further, the pulley 34A is rotatably driven by being connected to a motor. Thereby, the bucket elevator 34 picks up the (temporarily stored) projection material recovered by the screw conveyor 32 (refer to FIG. 1) with the bucket 34C and projects the bucket 34C by rotating the bucket elevator 34 with a motor. The material is conveyed to the upper side of the casing 18.

Further, as shown in FIGS. 1 and 2, a separator 40 is disposed in the vicinity of the upper side of the bucket elevator 34. The separator 40 is disposed in a circulation path of the circulation device 30, and projects foreign matter other than the projection material (such as fine scale peeled off from the surface of the wire) and a projection material that is conveyed by the bucket elevator 34 (that is, projection projected by the projection device 26). The projecting material which is split in the material is separated and removed, and the projecting material storage tank 38 for storing the projection material is disposed on the lower side of the lower end portion where the recyclable projecting material is dropped. As the separator 40, in the present embodiment, a cyclone is applied as an example. The whirlwind has a substantially cylindrical outer casing and has a guiding portion for guiding the air contained in the projecting material sucked by the outer casing to generate a swirling airflow of the air. In addition, a settling chamber can be applied instead of a cyclone. Further, a dust collector 42 is connected to the separator 40 shown in Fig. 1 through the air passage 41. In Fig. 1, the dust collector 42 is shown in a block diagram. The dust collector 42 attracts and collects air containing dust. Further, the dust is generated by the dust generated in the casing 18 and the separator 40.

A wire detecting device that is a detecting means for detecting the presence or absence of the wire 12 is disposed on the lowermost side of the wire feeding direction of the ball feeding device 10 (the downstream side of the carrying-side guiding rotor 16) on the upper side of the conveying path. 44. As shown in FIG. 4, the wire detecting device 44 is rotatably supported by a mounting bracket (not shown) of the ball discharging device 10 by a support shaft 44A whose axial direction is from the front surface side of the device. The arm 44A is integrally formed with the arm 44B. The arm 44B is extended in a direction orthogonal to the axial direction of the support shaft 44A and is rotatable (oscillated) about the support shaft 44A, and is in a vertical direction in a free state (see a two-point lock line). The arm 44B is rotatably attached to a rotor 44C whose axis is parallel to the support shaft 44A in a portion which is a lower end in a free state. A magnetic body such as a metal is attached to the upper end portion in a free state.

The wire detecting device 44 is disposed close to the closing 44E on the flow side (the left side in the drawing) of the arm 44B in the wire conveying direction. The proximity switch 44E is configured to bring the electric circuit (control circuit unit) including the proximity switch 44E into an on state when the magnetic body 44D is within a predetermined range. In other words, when the wire 12 passes through the lower side of the wire detecting device 44, the rotor 44C is pressed and the arm 44B is rotated, and the magnetic body 44D approaches the proximity switch 44E, and the proximity switch 44E detects the proximity of the magnetic body 44D. In other words, the presence of the wire 12 is detected. As shown in FIG. 8, the proximity switch 44E is connected to the ECU 46. The ECU 46 adjusts the supply amount of the projection material of the projection material supply device 28 to the projection device 26 based on the detection result of the wire detecting device 44.

On the other hand, as shown in FIG. 3, a speed detecting sensor 45 as a speed detecting means is disposed in the vicinity of the shaft portion 14A of the loading-side guiding rotor 14. When the loading-side guiding rotor 14 rotates, the speed detecting sensor 45 detects the speed at which the wire 12 is conveyed based on the rotational speed of the shaft portion 14A that rotates integrally with the loading-side guiding rotor 14. As shown in FIG. 8, the speed detecting sensor 45 is connected to the ECU 46. The ECU 46 adjusts the supply amount of the projection material of the projection material supply device 28 to the projection device 26 based on the detection result of the speed detecting sensor 45.

Specifically, the ECU 46 displaces the piston 28B3 in a state where the wire detecting device 44 detects the wire 12 (see FIG. 1) when the speed detected by the speed detecting sensor 45 is not full. The opening degree of the projection material shutter 28A in the projection material supply device 28 is half open, and when the detection speed of the speed detecting sensor 45 is equal to or higher than the predetermined speed, the wire detecting device 44 detects the wire 12 and causes the piston. The displacement of 28B3 is that the opening of the projection material gate 28A in the projectile supply device 28 is fully open. Further, the ECU 46 controls the speed detecting sensor 45 not to detect the transport speed of the wire 12 (see FIG. 1) (the transport state of the wire 12 is not detected) and the wire detecting device 44 has detected the wire 12 In order to maintain the opening degree of the projection material shutter 28A, that is, without changing the position of the piston 28B3, the speed detecting sensor 45 does not detect the conveying speed of the wire 12 and the wire detecting device 44 does not detect the wire 12 The displacement of the piston 28B3 is such that the opening of the projectile gate 28A is fully closed.

In addition, the opening degree of the projection material gate 28A may be set in more detail (that is, without a segment), and the ECU 46 controls the displacement amount of the piston 28B3 so that the detection speed corresponding to the speed detecting sensor 45 is projected. The opening degree of the material gate 28A (in other words, the supply amount of the projection material) may be changed in proportion, for example.

As shown in FIG. 3, the first sealing structure portion 50 (first sealing cylinder) is provided on the side of the inlet 20 of the casing 18 in the upper direction of the wire conveying direction than the inlet 20, and the outer casing of the first sealing structure 50 is provided. The body 51 is attached to the case 18. That is, the first seal structure portion 50 is provided between the carry-in side guide rotor 14 and the case 18. The bottom plate portion 51C of the outer casing 51 is inclined toward the lower side of the apparatus in the direction in which the wire is conveyed, and is configured to allow the projecting material to fall into the casing 18 when the projecting material enters the outer casing 51. Further, the lower portion of the inner space of the outer casing 51 communicates with the inner space of the casing 18 at a predetermined portion (not shown). Further, a lid body 51D is detachably attached to the opening at the upper end of the outer casing 51.

In the outer portion 51 of the first sealing structure portion 50, the through hole 51A is formed in the opposing portion of the inlet port 20, the through hole 51B is formed in the adjacent portion, and the guide tube member is disposed in the through hole 51A on the upstream side. Lead member) 52. The guide tube member 52 is substantially the same shape as the guide tube member 24 disposed at the carry-in port 20 of the case 18, and is disposed to coincide with the axis of the guide tube member 24. The guide roller member 52 is also reduced in the outlet side of the guide hole 52A, and also exhibits the rocking suppression function of the wire 12 at the time of conveyance.

A first sealing portion 54 is provided between the guiding cylinder member 52 and the guiding cylinder member 24. The first seal portion 54 includes a first cylindrical portion 56 through which the wire 12 can pass, and a first sealing member 58 disposed inside the first tubular portion 56. The first sealing body 58 functions as a leakage prevention of the projection material between the wire 12 and the inner surface of the first cylindrical portion 56 when the wire 12 passes. In addition, a flat plate portion 56C in which a through hole for a conveyance path is formed is provided at the most upstream portion and the most downstream portion of the first tubular portion 56 in the wire conveyance direction.

On the other hand, as shown in FIG. 4, the second sealing structure portion 60 (second sealing cylinder) is provided on the side of the delivery port 22 of the casing 18 in the direction of the wire conveying direction from the delivery port 22, and the second sealing is provided. The outer casing 61 of the structural portion 60 is attached to the casing 18. That is, the second seal structure portion 60 is provided between the casing 18 and the carry-out side guide rotor 16. The bottom plate portion 61C of the outer casing 61 is inclined toward the lower side of the apparatus in the direction in which the wire is conveyed, and is configured to allow the projecting material to fall into the casing 18 when the projecting material enters the outer casing 61. Further, the lower portion of the inner space of the outer casing 61 communicates with the inner space of the casing 18 at a predetermined portion (not shown). Further, a lid body 61D is detachably attached to the opening at the upper end of the outer casing 61.

A second sealing portion 64 is provided in the outer casing 61 outside the second seal structure portion 60. The second seal portion 64 is disposed in series (two in the present embodiment) in series in the wire conveyance direction. The second seal portion 64 includes a second tubular portion 66 through which the wire 12 can pass, and a second seal 68 disposed inside the second tubular portion 66 . The second sealing body 68 functions to prevent leakage of the projection material between the wire 12 and the inner surface of the second cylindrical portion 66 when the wire 12 passes. In addition, a flat plate portion 66C in which a through hole for a conveyance path is formed is provided in the most upstream portion and the most downstream portion of the second cylindrical portion 66 in the wire conveyance direction.

5 is a cross-sectional view taken along line 5A-5A of FIG. 3, and FIG. 5(B) is a cross-sectional view taken along line 5B-5B of FIG. 3. Further, since the second seal portion 64 (see FIG. 4) has substantially the same structure as the first seal portion 54, the illustration and description thereof are omitted.

As shown in Fig. 5, the first tubular portion 56 is formed by a V-shaped carrier case 56A having a V-shaped cross section and a cover VB having a V-shaped cross section disposed corresponding to the carrier case 56A. Further, although not shown in FIG. 5, an elastic body such as rubber may be attached to the inner surface of the drum case 56A and the inner surface of the lid body 56B. A projecting material penetration hole 156 is formed through the carrier barrel casing 56A. Further, the shape of the first tubular portion 56 and the second tubular portion 66 is not limited to the above-described shape, and may be any shape such as a circular shape.

As shown in FIGS. 3 and 4, the first sealing body 58 and the second sealing body 68 are composed of a plurality of bristles 158 and 168 which are long pieces. In the present embodiment, the first sealing body 58 and the second sealing body 68 are plurally brushed by the brush members 158 and 168 which are oriented in a single direction in a front view and have a substantially square shape (see FIG. 5). The members 58A and 68A are arranged in series in the wire conveying direction. Further, as shown in FIGS. 5 and 6, the first sealing body 58 is disposed such that the direction of the bristles 158 of the respective brush members 58A is observed to intersect in the arrangement direction (orthogonal in the present embodiment). Although not shown in the drawings, the second sealing body 68 shown in FIG. 4 is also disposed such that the direction of the bristles 168 of the respective brush members 68A is observed to intersect in the arrangement direction (orthogonal in the present embodiment). Thereby, the first sealing body 58 shown in FIG. 3 and the second sealing body 68 shown in FIG. 4 are formed so that the bristles 158 and 168 are extended from the plural direction to form a labyrinth sealing structure. In the present embodiment, the bristles 158 and 168 are formed of a resin fiber as an example, but may be made of rubber or metal other than resin. Further, the so-called labyrinth seal structure refers to a configuration in which the unsealed portions are arranged at small intervals in the direction of the interlace to prevent the projection material or dust from passing through the unsealed portion. Further, since the first sealing body 58 and the second sealing body 68 are constituted by the bristles 158 and 168, they can be removed by excessively strong force by the projecting material which is not adhered to the surface by the soft bristles as compared with the case of a plate material or the like. It is removed by a plurality of scrapings.

As shown in Fig. 5, the brush member 58A holds the brush base portion 258 of the bristles 158 attached to the first cylindrical portion 56, and the portion of the bristles 158 is formed with a slit 58B so as to have a substantially U-shape in the direction in which the wire is conveyed. The front end of the bristles 158 which are shortened by the slit 58B is set to be connected to the wire 12, and the width of the slit 58B is set to be substantially equal to the diameter of the wire 12. Although not shown in the drawings, the second sealing body 68 shown in Fig. 4 has the same structure.

As shown in FIG. 4, an air outlet 72 as a gas outflow port of the airflow generating device 70 is disposed on the flow side below the second sealing portion 64 in the direction in which the wire is conveyed. The airflow generating device 70 is a component that generates a flow of air to the inside of the casing 18, and includes a blower fan 74 that is provided above the casing 61 outside the second seal structure 60. The blower fan 74 is for external air introduction, and can be actuated by the driving force of the drive motor, and the exhaust side is connected to the duct 76. As shown in FIGS. 4 and 7, the lower end portion of the duct 76 is coupled to the upper end of the substantially rectangular box-shaped outer casing portion 78. A guide cylinder 80 as a cylindrical body is integrally provided in a central portion in the substantially height direction of the outer casing portion 78 so as to penetrate in the wire conveying direction. In addition, the air duct 76 and the guiding cylinder 80 constitute part of the airflow generating device 70.

The guide cylinder 80 is disposed closer to the flow side than the second seal portion 64 in the direction in which the wire is conveyed, and is formed in a substantially cylindrical shape, and the wire 12 can pass through the axial portion. The guide hole 80A through which the guide cylinder 80 is inserted along the conveyance path gradually decreases in diameter from the upstream side in the wire conveyance direction to the flow direction downstream of the wire conveyance direction, and gradually increases in diameter by the outlet port 72 as a boundary. The axis of the guide hole 80A is arranged to coincide with the center of the conveying path of the wire 12. By forming the air outlet 72 at the portion of the minimum diameter, the airflow ejected from the air outlet 72 flows at a high speed over the surface of the wire 12, and the attached projection material or the like can be easily removed, and the downstream side of the wire 12 at the portion can be prevented. The leakage of air. In addition, the increase in resistance to airflow can be reduced by gradually increasing the diameter of the upstream side.

Further, a ventilation slit 80B is formed in the guide cylinder 80 as a ventilation hole that communicates with the internal space 78A of the outer casing portion 78 and the guide hole 80A. The ventilating slit 80B is formed so as to be directed toward the wind direction of the airflow inside the casing 18 (see FIG. 4), and is inclined from the outer peripheral side of the guiding cylinder 80 toward the axial center side in the direction in which the wire is conveyed. The guiding cylinder 80 is formed around the entire circumference of the axial center portion. The above-described air outlet 72 is provided in an opening portion on the side of the guide hole 80A of the ventilation slit 80B.

(Effect)

Next, the action and effect of the above embodiment will be described.

As shown in Fig. 1, the wire material 12 supplied from the wire supply device (not shown) is removed from the inlet 20 side of the casing 18 via the first sealing portion 54 while being determined by the height position of the loading-side guiding rotor 14. Move in. When the wire 12 is guided to the rotor 14 by the loading side, the speed at which the wire 12 is conveyed is detected by the speed detecting sensor 45 (see FIG. 3).

The wire 12 is projected by the projection device 26 in the projection chamber 18A of the casing 18, and the deposits such as scales and rust adhering to the surface of the wire 12 are removed. Thereafter, the wire 12 is carried out from the delivery port 22 of the casing 18, and the rotor 16 is guided by the second sealing portion 64 through the carry-out side. The presence or absence of the wire 12 is detected by the wire detecting device 44 on the flow side from the carry-out side guide rotor 16 in the direction in which the wire is conveyed. Thereafter, it is taken up by a winding device (not shown).

Here, the ECU 46 shown in FIG. 8 adjusts the supply amount of the projection material of the projection material supply device 28 to the projection device 26 based on the detection result of the speed detecting sensor 45 and the detection result of the wire detecting device 44. . Specifically, the ECU 46 displaces the piston 28B3 in a state where the wire detecting device 44 detects the wire 12 (see FIG. 1) when the speed detected by the speed detecting sensor 45 is not full. The opening degree of the projection material shutter 28A in the projection material supply device 28 is half open, and when the detection speed of the speed detecting sensor 45 is equal to or higher than the predetermined speed, the wire detecting device 44 detects the wire 12 and causes the piston. The displacement of 28B3 is that the opening of the projection material gate 28A in the projectile supply device 28 is fully open. Further, the ECU 46 controls the speed detecting sensor 45 not to detect the transport speed of the wire 12 (see FIG. 1) (the transport state of the wire 12 is not detected) and the wire detecting device 44 has detected the wire 12 In order to maintain the opening degree of the projection material shutter 28A, that is, without changing the position of the piston 28B3, the speed detecting sensor 45 does not detect the conveying speed of the wire 12 and the wire detecting device 44 does not detect the wire 12 The displacement of the piston 28B3 is such that the opening of the projectile gate 28A is fully closed. By this, the supply amount of the projection material of the projection material supply device 28 to the projection device 26 is adjusted.

Further, in the bead apparatus 10 of the present embodiment, the first sealing portion 54 is disposed in the inlet 20 of the casing 18, and the first sealing portion 54 is attached to the inner side of the first cylindrical portion 56 through which the wire 12 can pass. A first sealing body 58 is disposed. The first sealing body 58 is used as a leakage preventing projection of the projection material between the wire 12 and the inner surface of the first cylindrical portion 56 when the wire 12 passes. Therefore, the leakage of the projected projecting material from the side of the carry-in port 20 is blocked by the first sealing body 58. On the other hand, the second sealing portion 64 is disposed at the outlet 22 of the casing 18, and the second sealing portion 64 is disposed on the inner side of the second cylindrical portion 66 through which the wire 12 can pass. The second sealing body 68 is used as a leakage preventing projection of the projection material between the wire 12 and the inner surface of the second cylindrical portion 66 when the wire 12 passes. Therefore, the leakage of the substantially projected projecting material from the side of the delivery port 22 is blocked by the second sealing body 68. However, there is a possibility that the projection material or the dust remaining on the wire 12 accompanying the removal of the wire 12 may be carried out together with the wire 12.

However, in the bead apparatus 10 of the present embodiment, the air outlet generating unit 70 is disposed on the flow side of the second sealing portion 64 in the lower side in the transport direction, and the air flow generating unit 70 is disposed in the housing 18 Since the inner airflow is generated, even if there is a projection material or dust remaining on the wire 12, the projection material or dust is returned to the inner side of the casing 18 together with the air current. Further, the projecting material or dust which is detached from the wire 12 at the second sealing body 68 is easily returned to the inside of the casing 18 together with the air current.

On the other hand, in the inside of the casing 18 shown in Fig. 1, the projecting material dropped by the projection device 26 projects on the bottom side of the inside of the casing 18 by the screw conveyor 32 from the length direction along the wire conveying direction. The side (left and right sides in the figure) is transported to the center. The lower end of the bucket elevator 34 is disposed at the conveying target of the projecting material of the screw conveyor 32. Therefore, the concentrated projecting material is conveyed to the upper side of the casing 18 by the bucket elevator 34, and the circulation of the bucket elevator 34 is included. Device 30 circulates toward projection device 26. The separator 40 is provided in the circulation path of the circulation device 30, and the foreign matter other than the projection material and the projection material which is split among the projected projection materials are separated and removed by the separator 40. Further, the dust-containing air is sucked by the dust collector 42 connected to the separator 40. By the suction of the dust collector 42, the inside of the casing 18 such as the separator 40 becomes a negative pressure, so that the airflow generated by the airflow generating device 70 to the inside of the casing 18 easily enters the inside of the casing 18, and the projection material is directed to the tank. The inside of the body 18 returns efficiently.

As described above, according to the bead apparatus 10 of the present embodiment, it is possible to prevent or suppress leakage of the projection material or the like from the inside of the apparatus, and to suppress unnecessary projection.

[Second Embodiment]

Next, a bead apparatus which is a surface treatment apparatus according to a second embodiment of the present invention will be described with reference to Figs. 9 to 11 . Fig. 9 shows a bead device 90 according to a second embodiment of the present invention in a front view. Fig. 10 shows a bead device 90 in a left side view, and a bead device in a right side view in Fig. 11. As shown in the figures, the bead apparatus 90 is the bead apparatus 10 of the first embodiment in which the inclined portion 92 is formed at the bottom of the casing 18 instead of the screw conveyor 32 (see FIG. 1) (see FIG. 1). )different. The other configuration is substantially the same as that of the first embodiment. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals and will not be described.

As shown in Fig. 9, at the bottom of the casing 18, a pair of inclined portions 92 are formed which are inclined toward the lower side in the center portion in the longitudinal direction of the wire conveying direction. The inclination angle A of the inclined portion 92 to the horizontal plane is preferably set to 25° ≦ A ≦ 45°, and in the present embodiment, it is set as A=28° as an example. Further, the length L1 of the casing 18 along the wire conveying direction and the length L2 of the pair of inclined portions 92 along the wire conveying direction (the sum of L21 and L22 in the drawing) are set to L2 ≧ (3/4)* The relationship of L1 is established. Further, a lower end portion of the bucket elevator 34 (on the side of the collecting port 34D) is disposed between the lower end portions of the pair of inclined portions 92.

(Effect)

According to the bead apparatus 90 of the second embodiment described above, it is possible to prevent or suppress leakage of the projection material or the like from the inside of the apparatus by the same action as in the first embodiment described above, and to suppress unnecessary projection.

Further, according to the bead apparatus 90 of the present embodiment, the projection material that has been projected and dropped flows along the pair of inclined portions 92, and the projection material is concentrated toward the center portion side in the longitudinal direction of the conveying direction. The concentrated projecting material is conveyed to the upper side of the casing 18 by the bucket elevator 34, and the circulation device 30 including the bucket elevator 34 is circulated to the projection device 26.

Further, the inclination angle A of the inclined surface portion 92 provided at the bottom of the casing 18 is set to 25° ≦A, and the projection material dropped onto the inclined portion 92 easily flows along the inclined portion 92. On the other hand, if the height of the beading device 90 becomes high, it is necessary to increase the operating position of the operator or to cause digging and to arrange the beading device in the lower part of the beading device 90. The 90 is required to be placed at a low position. However, in the present embodiment, the height of the beading device 90 is suppressed by setting it to A 45°.

Further, the relationship between the length L1 of the casing 18 along the wire conveying direction and the length L2 of the pair of inclined portions 92 along the conveying direction is set to L2 ≧ (3/4)*L1, so that it falls to the inclined portion. The projection material on 92 is concentrated by the inclined portion 92 within the narrow limit. In the present embodiment, the projecting material is concentrated on the bucket elevator 34 in a range that can be handled, and the projectile material is efficiently transported to the upper side of the casing 18 by the bucket elevator 34.

[Complementary description of the embodiment]

Further, in the beading apparatuses 10 and 90 shown in FIG. 1 and the like as described above, the centrifugal projection material projection device that accelerates projection of the projection material by centrifugal force is used as the projection device 26, but the projection device is applied to the surface treatment device. Other projection devices such as an air nozzle type projection device that ejects the projection material together with the compressed air and ejects it from the nozzle may be used.

Further, in the above-described embodiment, as shown in FIG. 4, the detecting means includes the wire detecting device 44 of the proximity switch 44E. However, the detecting means includes, for example, a light projector and a light receiver, and is caused by the presence or absence of the object to be processed. Other detecting means such as an optical sensor that detects the presence or absence of the object to be processed may be detected by the change in the amount of light received.

Further, in the above-described embodiment, the wire detecting device 44, which is a detecting means, is disposed on the flow side below the wire conveying direction with respect to the projection device 26, but the detecting means for detecting the presence or absence of the object to be processed is disposed with respect to the projection device 26. In the wire conveyance direction (the conveyance direction of the object to be processed), the flow side may be provided on the flow side, and the projection device 26 may be disposed on both the flow side and the downstream side in the wire conveyance direction.

Further, in the above-described embodiment, the speed detecting sensor 45, which is a speed detecting means as shown in FIG. 3, is disposed on the flow side in the wire conveying direction with respect to the projection device 26, but detects the speed at which the object to be processed is transported. The speed detecting means may be disposed on the flow side below the wire conveying direction (the conveying direction of the object to be processed) with respect to the projection device 26. Further, the speed detecting sensor 45 may be used as a detecting means for detecting the presence or absence of an object to be processed.

Further, in the above-described embodiment, the projection material supply device 28 can change the supply amount of the projection material to the projection device 26 by opening and closing the lower opening portion 28C3 of the inner tubular portion 28C2 by the projection material shutter 28A as shown in FIG. However, the projection material supply device 28 may be configured to change the supply amount of the projection material to the projection device 26 by opening and closing the lower opening portion 28C3 of the inner tubular portion 28C2 by sliding the projection material shutter 28A.

Further, in the above-described embodiment, the ECU 46 adjusts the supply amount of the projection material of the projection material supply device 28 to the projection device 26 based on the detection result of the speed detecting sensor 45 and the detection result of the wire detecting device 44. However, the control means may adjust the supply amount of the projection material of the projection material supply device 28 to the projection device 26 based only on the detection result of the detection means. In this case, for example, when the detection means detects the object to be processed, the projection material shutter 28A is fully opened, and when the detection means does not detect the object to be processed, the projection material gate 28A is fully closed. The setting.

Further, in the above embodiment, the airflow generating device 70 includes the blower fan 74 for introducing the outside air, but the airflow generating device is configured to include a compressed air supply device that supplies compressed air, and is connected to the compressed air supply device. Other airflow generating means such as an airflow generating means as an injection port of the gas outflow port may be provided at the front end of the nozzle.

Further, in the above-described embodiment, the airflow generation device 70 includes the guide cylinder 80 in which the ventilation slit 80B is formed. However, the airflow generation device does not include such a cylindrical body, and the nozzle is provided to the transport path side to the cabinet. The configuration in which the outlet side is inclined is also possible.

Further, in the above-described embodiment, the ventilation slit 80B is formed over the entire circumference of the axial center of the guide cylinder 80. However, the vent hole may be formed by a plurality of intervals around the axial center of the cylindrical body.

Further, in the above-described embodiment, the first sealing body 58 and the second sealing body 68 form a labyrinth sealing structure, and in order to prevent leakage of the projection material, the structure is more preferable, but the first sealing body and the second sealing body are, for example. It is also possible to form the first sealing body and the second sealing body which do not form the labyrinth sealing structure, and the bristles which are formed in the unidirectional direction.

Further, in the above-described embodiment, the first sealing body 58 and the second sealing body 68 constitute a labyrinth sealing structure by the bristles 158 and 168, but the first sealing body and the second sealing body are, for example, a plurality of rubbers which are elastically deformable, for example. The linear body or the thin strip-shaped body may be formed by extending from the plural direction to form other first sealing bodies and second sealing bodies such as a labyrinth seal structure. Further, in the first sealing body and the second sealing body, the member in which the linear body or the thin strip-shaped body made of the plurality of rubbers is oriented in a single direction is used in plural, and the plurality of members are arranged in series in the conveying direction and each member is The extension direction is configured to observe the intersection in the arrangement direction.

Further, in the above-described embodiment, the first sealing body 58 and the second sealing body 68 are used in a plurality of brush members 158 and 168 toward the brush members 58A and 68A in the single direction, and the plurality of brush members 58A and 68A are arranged in series in the wire conveying direction. The directions of the bristles 158 and 168 of the brush members 58A and 68A are arranged to intersect in the arrangement direction. However, for the first sealing body 58 and the second sealing body 68, for example, a single brush member is applied and the bristles are applied to extend from the plural direction to the labyrinth. The seal structure can also be formed.

Further, in the above-described embodiment, the brush base portion 258 for holding the bristles 158 is formed linearly, but the brush base portion for holding the bristles may be formed into other shapes such as a circular shape or a spiral shape.

Further, in the above-described embodiment, the second sealing portion 64 is disposed in series (two) in series in the conveying direction, and this configuration is more preferable from the viewpoint of preventing leakage of the projection material, but the second sealing portion is disposed in one configuration. Also. Further, the second sealing portion 64 may be arranged in series of three or more in the conveying direction.

Further, in the above-described embodiment, the first sealing structure portion 50 including the first sealing portion 54 is provided adjacent to the upstream side of the loading port 20 of the casing 18 in the wire conveying direction, but the structural portion including the first sealing portion is opposed to the casing. The inlet 20 of the body 18 may be disposed adjacent to the flow side in the wire conveying direction (the conveying direction of the object to be processed).

Further, in the above-described embodiment, the second sealing structure portion 60 including the second sealing portion 64 is provided adjacent to the lower side of the wire carrying direction of the casing 18, but the structural portion including the second sealing portion is provided. The inlet 20 of the body 18 may be disposed adjacent to the upstream side in the wire conveying direction (the conveying direction of the object to be processed).

Further, in the above-described embodiment, the circulation device 30 is provided, and it is more preferable that the circulation device 30 is provided from the viewpoint of circulating the projection material, but the surface treatment device may be omitted.

Further, in the above-described embodiment, the inclination angle A of the inclined portion 92 to the horizontal plane is set to 25°≦A≦45°, and the configuration in which the projection material is easily flowed from the height dimension of the suppression device is preferable. The inclination angle A of the inclined portion to the horizontal plane can also be set to A < 25 ° or A > 45 °.

Further, in the above embodiment, the length L1 of the casing 18 along the wire conveying direction and the length L2 of the pair of inclined portions 92 along the wire conveying direction (the sum of L21 and L22 in Fig. 9) are set to L2. (3/4) * The relationship of L1 is established, and the setting of the projection material to be dropped on the inclined portion 92 by the inclined portion is concentrated in the narrow restriction range is preferable, but it may be set to L2 < ( 3/4) *L1.

Further, in the above embodiment, the surface treatment apparatus is the bead apparatus 10 and 90, but the surface treatment apparatus may be, for example, a shot peening apparatus.

Further, in the above-described embodiment, the bead apparatus 10 and 90 for the object to be processed are the wire material 12, but the surface treatment apparatus is, for example, the object to be processed is rolled out from the upstream side of the surface treatment apparatus on the downstream side. A surface treatment apparatus for taking other objects to be processed such as a steel strip, a rod-shaped member, or a plate-shaped member may be used.

Further, in the above-described embodiment, the beading devices 10 and 90 include the first sealing portion 54, the second sealing portion 64, and the airflow generating device 70. However, the surface treatment device does not have any of these configurations or It is also possible not to have all of these components.

Further, the above embodiment and the above-described plural modifications can be combined as appropriate.

10. . . Beading device (surface treatment device)

12. . . Wire (object to be processed)

18. . . Box

18A. . . Projection room

20. . . Move in

twenty two. . . Move out

26. . . Projection device

28. . . Projection material supply device

30. . . Circulator

34. . . Bucket lift

40. . . Splitter

42. . . Dust collector

44. . . Wire detection device (detection means)

45. . . Speed detection sensor (speed detection means)

46. . . ECU (control means)

54. . . First seal

56‧‧‧First tubular

58‧‧‧First seal

64‧‧‧Second seal

66‧‧‧Second tubular part

68‧‧‧Second seal

70‧‧‧Airflow generating device

72‧‧‧Blowout (gas outlet)

90‧‧‧Beading device (surface treatment device)

S‧‧‧projection

X‧‧‧Wire conveying direction (transport direction)

Fig. 1 is a front view showing a bead apparatus according to a first embodiment of the present invention.

Figure 2 is a left side view of the bead apparatus of Figure 1.

Fig. 3 is a partially enlarged view showing an enlarged entrance side of the bead apparatus of Fig. 1;

Fig. 4 is a partially enlarged view showing the expansion port side of the bead apparatus of Fig. 1;

Figure 5 is a cross-sectional view showing the brush of Figure 3. Fig. 5(A) is an enlarged cross-sectional view taken along line 5A-5A of Fig. 3. Fig. 5(B) is an enlarged cross-sectional view taken along line 5B-5B of Fig. 3.

Fig. 6 is an enlarged view showing the direction of the arrow 6 in Fig. 3;

Figure 7 is a perspective view showing a half section of a portion of the airflow generating device of Figure 4 in an enlarged manner.

FIG. 8 is a schematic configuration diagram showing a schematic configuration and the like of the first projecting material supply device.

Fig. 9 is a front view showing a bead apparatus according to a second embodiment of the present invention.

Figure 10 is a left side elevational view of the bead apparatus of Figure 9.

Figure 11 is a right side elevational view of the bead apparatus of Figure 9.

10. . . Beading device (surface treatment device)

12. . . Wire (object to be processed)

14. . . Moving into the side guiding rotor

16. . . Carry out the side guiding rotor

18. . . Box

18A. . . Projection room

20. . . Move in

twenty two. . . Move out

twenty four. . . Guide tube member

25. . . Guide tube

26. . . Projection device

28. . . Projection material supply device

28A. . . Projection gate

28B. . . Pneumatic cylinder

30. . . Circulator

32. . . Screw conveyor

34. . . Bucket lift

34D. . . Collection port

36. . . Drive motor

38. . . Projection storage tank

40. . . Splitter

41. . . Wind tunnel

42. . . Dust collector

44. . . Wire inspection device

50. . . First seal structure

52. . . Guide tube member (guide member)

54. . . First seal

64. . . Second seal

70. . . Airflow generating device

74. . . Drum fan

76. . . Wind tunnel

80. . . Guide cylinder (cylinder)

X. . . Wire conveying direction (transport direction)

Claims (6)

A surface treatment apparatus includes: a projection device that projects a projection material to an object to be processed that is transported in a predetermined conveyance direction; and the projection device is disposed in at least one of a flow side and a downstream side of the conveyance direction, and detects the processed portion a means for detecting the presence or absence of an object; a projection material supply device for supplying a projection material to the projection device and capable of changing a supply amount of the projection material to the projection device; and adjusting the aforementioned result based on the detection result of the detection means The means for controlling the supply amount of the projection material to the projection device of the projection material supply device; the detection means is disposed on the upper side of the conveyance path on which the object to be processed is conveyed, and is provided to be rotatable in the conveyance direction An arm in which the support shaft in the horizontal direction is rotationally moved and is disposed in a posture in which the longitudinal direction is the up-and-down direction in the free state, and is attached to a portion of the arm that is lower than the lower end of the lower side of the support shaft in the free state thereof. a position at which the object to be processed is pressed while being conveyed and rotatable about an axis parallel to the fulcrum a rotor, and a magnetic body attached to a portion of the arm that is higher than the upper end of the upper side of the support shaft in the free state, and the object to be processed in the conveyance is pressed against the rotor to rotatably move the arm. The proximity of the magnetic body is detected and the proximity switch of the magnetic body is detected. The surface treatment apparatus according to claim 1, wherein a speed detecting means for detecting a speed at which the object to be processed is transported is provided; and the controlling means adjusts the projecting material based on a result of detecting the speed detecting means The supply amount of the projection material of the supply device to the projection device. The surface treatment apparatus according to the first or second aspect of the invention, wherein a projection chamber for processing a surface of the object to be processed by a projection material projected by the projection device is formed therein, and the object to be processed is formed. a container for loading and unloading the object, and a first cylindrical portion that is disposed on the inlet side of the casing and that allows the object to be processed to pass through the inside and is disposed in the first cylindrical shape a first sealing portion of the first sealing body for leakage prevention between the object to be processed and the inner surface of the first cylindrical portion when the object to be processed passes; The object to be processed and the object to be processed can pass through the second tubular portion on the inner side and the inner side of the second cylindrical portion, and the object to be processed is passed through the object to be processed. a second sealing portion of the second sealing body for preventing leakage is formed between the inner surfaces of the second cylindrical portion; the gas outflow port is disposed below the conveying direction of the second sealing portion Airflow to the airflow arising from the inner side of the housing of the generator. A surface treatment apparatus according to claim 1, wherein a circulation device including a bucket elevator that conveys a projection material projected by the projection device to an upper side of the casing and circulating the projection material to the projection device; a circulation path provided in the circulation device and projecting the projection a separator that separates and removes the foreign matter other than the material and the projected projection material from the projected projection material; and a dust collector that is connected to the separator and sucks air containing dust. The surface treatment apparatus according to claim 2, further comprising a bucket elevator that includes a projection material projected by the projection device and transported to an upper side of the casing, and circulates the projection material to the projection device. a circulator; a separator disposed on the circulation path of the circulation device and separating and removing the foreign matter other than the projection material and the projection material projected from the projection material; and connecting the separator to the air containing the dust Dust collector. The surface treatment apparatus according to claim 3, further comprising a bucket elevator that includes a projection material projected by the projection device and transported to an upper side of the casing, and circulates the projection material to the projection device. a circulator; a separator disposed on the circulation path of the circulation device and separating and removing the foreign matter other than the projection material and the projection material projected from the projection material; and connecting the separator to the air containing the dust Dust collector.