JP4964479B2 - Hollow pipe residue removal device - Google Patents

Description

  The present invention relates to a hollow pipe residue removing device for removing residues remaining in a pipe hole of a hollow pipe.

2. Description of the Related Art Conventionally, in a pipe cutting facility for cutting a hollow pipe, there has been provided a chip removing device that sucks and removes chips remaining in the pipe hole of the hollow pipe (Patent Document 1). According to this, the movable body connected to the suction pipe and the clamp portion for clamping the hollow pipe in the radial direction thereof are provided. First, the hollow pipe is clamped in the radial direction by a clamp portion and fixed in a state where the hollow pipe is stopped. In this state, a movable body is applied to the distal end opening of the distal end portion in the length direction of the hollow pipe, and the suction means is operated. Thus, the inside of the pipe hole of the hollow pipe is sucked through the suction pipe connected to the movable body, and the chips remaining in the pipe hole of the hollow pipe are sucked and removed.
JP 2002-126942 A

  By the way, according to the above-described apparatus, it is not always sufficient to remove the residue remaining in the pipe hole of the hollow pipe.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a hollow pipe residue removing device that is advantageous for removing the residue remaining inside the pipe hole of the hollow pipe. .

A hollow pipe residue removing apparatus according to the present invention is a hollow pipe residue removing apparatus that removes residues remaining in a pipe hole of a hollow pipe,
A transporting means for transporting a hollow pipe having a pipe hole along the axial length direction thereof; a base having a suction chamber disposed in a transporting path of the transporting means and sucked by the suctioning means; and a transporting means provided on the base. The hollow pipe to be conveyed has a guide portion having a guide hole inserted along the axial direction of the hollow pipe, and the base is provided with a lid member for increasing the degree of closure of the suction chamber of the base The suction chamber sucks the inside of the pipe hole of the hollow pipe inserted into the suction chamber from the guide hole of the guide portion.

When the hollow pipe is inserted into the suction chamber, the air inside the pipe hole of the hollow pipe can be sucked through the suction chamber sucked by the suction means. As a result, the residue remaining inside the pipe hole of the hollow pipe can be removed. Here, the base is provided with a lid member for increasing the degree of closure of the suction chamber of the base. If the degree of closure of the suction chamber is increased, the residue remaining in the pipe hole of the hollow pipe inserted into the suction chamber is removed. Efficient suction is possible.

  According to the present invention, when the hollow pipe is inserted into the suction chamber, the air inside the pipe hole of the hollow pipe can be sucked through the suction chamber sucked by the suction means. As a result, the residue remaining inside the pipe hole of the hollow pipe can be removed. If the hollow pipe residue removing apparatus according to the present invention is incorporated in a line, it is possible to automate the process of removing the residue remaining inside the pipe hole of the hollow pipe.

  The guide hole of the guide part is exemplified by a configuration in which a gap is formed between the inner peripheral wall surface of the guide hole of the guide part and the outer peripheral wall surface of the hollow pipe. In this case, the suction chamber can suck not only the residue remaining in the pipe hole of the hollow pipe inserted into the suction chamber from the guide hole of the guide portion but also the residue remaining on the outer peripheral wall surface of the hollow pipe. .

  The shape of the hollow pipe may be a cylindrical pipe or a square pipe. Examples of the cylindrical pipe include a pipe having a circular cross section and a pipe having an elliptical cross section. The material of the hollow pipe is not particularly limited, and examples thereof include iron, aluminum, titanium, and copper. Examples of the residue include solid phase residue such as chips, liquid phase residue such as oil and moisture, gel residue and the like. The chips may be metal scraps, resin scraps, or chips.

  The guide part is exemplified by a form in which a plurality of divided guide parts are arranged in series along the conveyance direction of the hollow pipe. In this case, the number of the divided guide portions may be plural, and two or more divided guide portions may be arranged in series. In this case, a suction gap is formed between the adjacent divided guide portions, and the suction gap communicates with the suction chamber and communicates with the guide hole of the guide portion. In this case, the residue remaining inside the pipe hole of the hollow pipe and further the residue remaining on the outer peripheral wall surface of the hollow pipe can be removed via the suction gap.

  The division guide portion is provided on the upstream side in the conveyance direction of the hollow pipe and has a first guide hole, and the second division guide is provided on the downstream side in the conveyance direction of the hollow pipe and has a second guide hole. The form provided with the part is illustrated. A suction gap can be formed between the first divided guide portion and the second divided guide portion. The suction gap is preferably a ring shape that makes one round around the axis of the guide portion.

  The cover member includes a first cover member that opens and closes the first guide hole of the first divided guide part, and a second cover member that opens and closes the second guide hole of the second divided guide part. . In this case, the degree of closure of the suction chamber can be increased. The 2nd cover member has the form which has the structure open | released pressed by the front-end | tip part of the hollow pipe moved by a conveyance means. In this case, an open drive source for opening the second lid member is not necessary.

  An example in which a plurality of guide portions having guide holes with different hole diameters is prepared is illustrated. A configuration in which the guide part is replaceable with respect to the base body is exemplified. In this case, it can be coped with when the outer diameter of the hollow pipe is changed.

  Embodiment 1 of the present invention will be described below with reference to FIGS. The hollow pipe residue removing apparatus removes the residue K remaining in the pipe hole 10 of the hollow pipe 1. The hollow pipe 1 is a cylindrical pipe, and the material is not particularly limited, and is a metal system such as iron, aluminum, titanium, or copper. The residue K is a solid phase residue such as chips.

  As shown in FIG. 1, the hollow pipe residue removing apparatus is provided with a plurality of conveying rollers 2 as conveying means. The transport roller 2 transports the hollow pipe 1 having a predetermined length in the transport direction (arrow X1 direction) along the axial length direction thereof. The conveyance roller 2 forms a conveyance path 20 for conveying the hollow pipe 1 along the axial length direction thereof.

  As shown in FIG. 1, the base 3 is disposed in the middle of the transport path 20 of the transport roller 2. A suction chamber 30 is formed inside the base 3. The suction chamber 30 can be switched between a closed space and an open space. The base body 3 is a cylindrical third member having a first fixing part 31 located on the upstream side in the transport direction, a second fixing part 32 located on the downstream side of the first fixing part 31, and a downward suction passage 34. And a fixed portion 33. The tip end portion 34c of the suction passage 34 is connected to the suction means 35 through a suction path 35c. The suction means 35 is exemplified by a suction motor or a suction pump that sucks air.

  As shown in FIG. 1, the base 3 is provided with a guide portion 4 for guiding the hollow pipe 1 into the suction chamber 30 so as to be positioned in the suction chamber 30. The guide portion 4 is provided on the downstream side of the first divided guide portion 41 in the conveying direction of the hollow pipe 1 and the first divided guide portion 41 provided on the upstream side in the conveying direction (arrow X1 direction) of the hollow pipe 1. The second divided guide portion 42 is provided. The first divided guide portion 41 and the second divided guide portion 42 are arranged coaxially, and are formed side by side in series along the conveyance direction (arrow X1 direction) of the hollow pipe 1.

  As shown in FIG. 2, the 1st division | segmentation guide part 41 has the 1st guide hole 43 which makes a right cylinder shape. The second divided guide portion 42 has a second guide hole 44 having a right cylindrical shape. An upstream guide surface 45 a that guides insertion of the distal end portion 12 of the hollow pipe 1 is formed at the pipe inlet 45 upstream of the first guide hole 43. A downstream guide surface 46 a is formed at the pipe outlet 46 on the downstream side of the second guide hole 44. In addition, since the 2nd division | segmentation guide part 42 is using the thing of the same size as the 1st division | segmentation guide part 41 so that it may mutually oppose, the number of parts is reduced.

  As shown in FIG. 2, the first division guide portion 41 has a conical first outer peripheral wall surface 47. The outer diameter of the first outer peripheral wall surface 47 decreases as it goes downstream in the conveyance direction (arrow X1 direction) of the hollow pipe 1. As shown in FIG. 2, the second divided guide portion 42 has a conical second outer peripheral wall surface 48. The second outer peripheral wall surface 48 has an outer diameter that decreases toward the upstream in the conveying direction of the hollow pipe 1.

  In this case, a suction gap 5 having a gap width m1 is formed between the adjacent first divided guide part 41 and the second divided guide part 42. The suction gap 5 has a ring shape that goes around the axis PA of the first divided guide portion 41 and the second divided guide portion 42 once. The suction gap 5 communicates with the suction chamber 30 and also communicates with the first guide hole 43 of the first divided guide portion 41 and the second guide hole 44 of the second divided guide portion 42.

  According to the present embodiment, as shown in FIG. 2, the first outer peripheral wall surface 47 and the second outer peripheral wall surface 48 are set so that the outer diameter gradually decreases as the suction gap 5 is approached. For this reason, when the suction means 35 operates and the air in the suction chamber 30 is sucked toward the suction passage 34, the passage resistance when passing through the suction gap 5 is reduced. Therefore, the attraction | suction with respect to the air in the 1st guide hole 43 and the 2nd guide hole 44 using the suction clearance 5 increases. In addition, the dischargeability of the residue K from the suction gap 5 is enhanced.

  According to the present embodiment, in FIG. 1, the male screw portion 41 r is coaxially formed on the outer peripheral portion of the large diameter portion of the first divided guide portion 41. The first fixing portion 31 is formed with a mounting hole 31p having a female screw portion 31r. The first split guide portion 41 is detachably attached and is located in the suction chamber 30 by screwing the male screw portion 41r of the first split guide portion 41 into the female screw portion 31r of the attachment hole 31p. When the first divided guide portion 41 hits the positioning jig 31x, the first divided guide portion 41 cannot enter the suction chamber 30 any more. The positioning jig 31x functions as a stopper element provided on the base 3 in order to prevent the first divided guide portion 41 from excessively entering the suction chamber 30.

  In FIG. 1, a male screw portion 42 r is coaxially formed on the outer peripheral portion of the large-diameter portion of the second divided guide portion 42. The second fixing portion 32 is formed with a mounting hole 32p having a female screw portion 32r. The second divided guide portion 42 is detachably attached by being screwed into the female screw portion 32 r of the attachment hole 32 p and is positioned in the suction chamber 30. When the second divided guide portion 42 hits the positioning jig 32x, the second divided guide portion 42 cannot enter the suction chamber 30 any more. The positioning jig 32x functions as a stopper element attached to the base 3 in order to prevent the second divided guide portion 42 from excessively entering the suction chamber 30. When the first divided guide part 41 and the second divided guide part 42 cannot enter any more, the gap width m1 of the suction gap 5 becomes the minimum value.

  If the male screw portion 41r of the first split guide portion 41 is rotated in the opposite direction with respect to the female screw portion 31r, the first split guide portion 41 is separated from the positioning jig 31x. If the male screw portion 42r of the second split guide portion 42 is rotated in the opposite direction with respect to the female screw portion 32r, the second split guide portion 42 is separated from the positioning jig 32x. For this reason, the gap width m1 of the suction gap 5 can be increased and adjusted. When the size of the gap width m1 is adjusted in this way, the suction force can be adjusted.

  Accordingly, the male screw portion 41r and the female screw portion 31r function as position adjusting means for adjusting the position of the first divided guide portion 41 in the direction of the arrow X1 that is the pipe conveyance direction. The male screw portion 42r and the female screw portion 32r function as position adjusting means for adjusting the position of the second divided guide portion 42 in the arrow X1 direction that is the pipe conveying direction. The male screw portion 41r, the female screw portion 31r, the male screw portion 42r, and the female screw portion 32r serve as gap width adjusting means for adjusting the size of the gap width m1 of the suction gap 5 or suction for adjusting the suction force by the suction gap 5. It functions as a force adjustment means.

  According to the present embodiment, as shown in FIG. 1, the base member 3 is provided with the lid member 6 that increases the degree of closure of the suction chamber 30 of the base member 3. The lid member 6 opens and closes the first lid member 61 that opens and closes the pipe inlet 45 of the first guide hole 43 of the first split guide portion 41 and the pipe outlet 46 of the second guide hole 44 of the second split guide portion 42. The second lid member 62 is formed. The first lid member 61 is opened and closed by an air cylinder device 7 as an opening and closing drive source fixed on the upper side of the first fixing portion 31 of the base 3. That is, the air cylinder device 7 includes a cylinder body 70, a lifting rod 71 that moves along a vertical direction provided in the cylinder body 70, and a fixture 72 attached to the lifting rod 71.

  As shown in FIG. 1, the fixture 72 includes a laterally extending portion 721 that extends in the lateral direction and a longitudinally extending portion 722 that extends in the longitudinal direction. The engaging portion 61 a of the first lid member 61 is engaged with and attached to the laterally extending portion 721 of the fixture 72. The first lid member 61 is movable along the laterally extending portion 721 in the directions of arrows A1 and A2 (corresponding to the direction along the conveying direction of the hollow pipe 1).

  Here, when the tip 71e of the elevating rod 71 is lowered in the direction of the arrow Y1 by the closing operation of the air cylinder device 7, the first lid member 61 is closed and the pipe inlet 45 of the first split guide portion 41 is closed. . On the other hand, when the distal end portion 71e of the elevating rod 71 rises in the direction of the arrow Y2 by the opening operation of the air cylinder device 7, the first lid member 61 is opened and the pipe inlet 45 of the first divided guide portion 41 is opened. Is done.

  As shown in FIG. 1, the upper end portion 62 u of the second lid member 62 is pivotally supported by the pivot shaft 37 of the second fixing portion 32 of the base 3. Therefore, the upper end portion 62u of the second lid member 62 is pivotally supported so as to be rotatable in the directions of arrows B1 and B2 (corresponding to the direction along the conveying direction of the hollow pipe 1). In a normal state, the second lid member 62 rotates in the direction of arrow B1 due to its own weight, and closes the pipe outlet 46 of the second divided guide portion 42.

When the hollow pipe 1 is moved in the direction of the arrow X1 by the conveying roller 2 and the distal end 12 in the length direction of the hollow pipe 1 hits the inner surface 62i of the second lid member 62, the second lid member is caused by the distal end 12 of the hollow pipe 1. 62 is pressed and rotated in the direction of the arrow B2, and the second lid member 62 is opened. For this reason, it is not necessary to separately provide an open drive source for opening the second lid member 62. If the first lid member 61 is closed to increase the degree of closure of the suction chamber 30 of the base 3, the degree of suction of the suction chamber 30 can be increased.

  The usage pattern of this apparatus will be described. First, the first lid member 61 and the second lid member 62 are closed. In this state, the hollow pipe 1 placed on the conveying roller 2 moves in the direction of the arrow X1 along the length direction of the hollow pipe 1 and approaches the base 3. Then, a control device (not shown) that detects this by a sensor or the like outputs an open signal to the air cylinder device 7. Then, the air cylinder device 7 is opened to raise and lower the lifting rod 71 in the arrow Y2 direction. As a result, the first lid member 61 rises in the arrow Y2 direction. As a result, the pipe inlet 45 of the first guide hole 43 of the first divided guide portion 41 is opened. In this case, if the suction means 35 is operated by the control device and the suction chamber 30 is sucked, the operability of the first lid member 61 may be impaired due to the negative pressure of the suction chamber 30. When the 1 lid member 61 is opened, a form in which the suction chamber 30 is not sucked is employed. However, in some cases, when the first lid member 61 is lifted and opened, the suction means 35 may be operated to suck the inside of the suction chamber 30.

  When the first lid member 61 is opened as described above, the pipe inlet 45 of the first guide hole 43 of the first divided guide portion 41 is opened as shown in FIG. In this case, as shown in FIG. 1, the second lid member 62 is rotated by its own weight in the direction of arrow B1 and closed. Therefore, the pipe outlet 46 of the second guide hole 44 of the second divided guide portion 42 is closed.

  The hollow pipe 1 is further transported in the direction of the arrow X1 by the transport roller 2. Therefore, the distal end portion 12 in the length direction of the hollow pipe 1 is inserted into the first guide hole 43 of the first divided guide portion 41.

  1 and FIG. 2, the distal end portion 12 of the hollow pipe 1 is inserted into the first guide hole 43 of the first split guide portion 41, but the second guide hole 44 of the first split guide portion 41 has Indicates a state that has not yet been reached. In this case, as shown in FIGS. 1 and 2, the distal end portion 12 in the length direction of the hollow pipe 1 approaches the suction gap 5, upstream of the center line PC of the suction gap 5, that is, in the direction of the arrow Mu (see FIG. 1). ). In this case, the suction means 35 is operated by the control device. For this reason, the air inside the suction chamber 30 is sucked toward the suction passage 34 in the direction of the arrow S1. Accordingly, an internal air flow K1 passing through the inside of the pipe hole 10 of the hollow pipe 1 and the front end opening 15 of the front end portion 12 of the pipe hole 10 is generated, and the internal air flow K1 flows into the suction passage 34 via the suction gap 5. In this case, the rear end opening 16 in the length direction of the hollow pipe 1 is not closed but is opened, so that the air in the pipe hole 10 of the hollow pipe 1 is allowed to pass toward the front end opening 15 thereof. The airflow K1 can be generated effectively.

  As a result of the generation of the internal air flow K1, the residue K remaining in the pipe hole 10 of the hollow pipe 1 is peeled off by the internal air flow K1. The peeled residue K is sucked and removed in the removal direction (arrow S1 direction) through the suction gap 5 toward the suction passage 34 of the base 3. Therefore, the inside of the pipe hole 10 of the hollow pipe 1 is cleaned. Here, since the suction gap 5 has a ring shape that makes one round of the axial center PA of the first divided guide portion 41, the air in the pipe hole 10 is sucked from the entire circumference of the suction gap 5. The interior of 10 is cleaned well.

  Furthermore, according to the present embodiment, as shown in FIG. 2, the first outer gap is provided between the inner peripheral wall surface 43 i of the first guide hole 43 of the first divided guide portion 41 and the outer peripheral wall surface 11 of the hollow pipe 1. 51 is formed. For this reason, when the inside of the suction chamber 30 is sucked by the suction means 35, the first outer gap 51, the distal end portion 12 of the hollow pipe 1, the suction gap 5 in the first guide hole 43 of the first divided guide portion 41. The external airflow R1 passing through the pipe is also generated along the outer peripheral wall surface 11 of the hollow pipe 1. The external air flow R1 flows to the suction passage 34 side of the base 3 through the suction gap 5 in the same manner as the internal air flow K1. Accordingly, the residue K remaining on the outer peripheral wall surface 11 of the hollow pipe 1 is also suctioned and removed to the suction passage 34 side by the external air flow R1. As a result, the outer peripheral wall surface 11 of the hollow pipe 1 is also cleaned well.

  According to this embodiment, as shown in FIGS. 1 and 2, as shown in FIGS. 1 and 2, the second lid member 62 is in the initial stage of insertion when the distal end portion 12 of the hollow pipe 1 is inserted into the first guide hole 43 of the first divided guide portion 41. However, the pipe outlet 46 of the second guide hole 44 of the second divided guide portion 42 is closed. For this reason, in the initial stage of the insertion, the closing property of the suction chamber 30 and the degree of decompression of the suction chamber 30 are ensured satisfactorily. As a result, the suction force in which the suction chamber 30 sucks the residue K is ensured, and the residue K is cleaned well.

  FIG. 3 shows a state in which the hollow pipe 1 is further conveyed along the direction of the arrow X1 so that the distal end portion 12 of the hollow pipe 1 protrudes from the pipe outlet 46 of the second divided guide portion 42. In the state shown in FIG. 3, a first outer gap 51 is formed between the inner peripheral wall surface 43 i of the first guide hole 43 of the first divided guide portion 41 and the outer peripheral wall surface 11 of the hollow pipe 1. Further, as shown in FIG. 3, a second outer gap 52 is formed between the inner peripheral wall surface 44 i of the second guide hole 44 of the second divided guide portion 42 and the outer peripheral wall surface 11 of the hollow pipe 1. It is preferable that the height position of the hollow pipe 1 is defined by the transport roller 2 so that the cross-sectional shapes of the first outer gap 51 and the second outer gap 52 form a ring shape.

  In the state shown in FIG. 3, the distal end portion 12 of the hollow pipe 1 is in contact with the inner surface 62 i of the second lid member 62, and the second lid member 62 is in the lid opening direction (in the direction of arrow B <b> 2) around the pivot shaft 37. It is opened by rotating. Further, the rear end portion 13 in the length direction of the hollow pipe 1 is located on the upstream side of the first lid member 61, and the first lid member 61 is also opened by the air cylinder device 7. Thus, although both the 1st cover member 61 and the 2nd cover member 62 are open | released and the closing property of the suction chamber 30 apparently falls, as shown in FIG. The hollow pipe 1 is inserted into the first guide hole 43 and the second guide hole 44 of the second divided guide portion 42. Accordingly, it can be said that the ring-shaped suction gap 5 communicating with the suction passage 34 is substantially closed by the outer peripheral wall surface 11 of the hollow pipe 1.

  Therefore, in the state shown in FIG. 3, although both the first lid member 61 and the second lid member 62 are open, the suction chamber 30 substantially includes the first outer gap 51 and the second outer gap 52. It just communicates with the outside air. Therefore, the closing property of the suction chamber 30 is ensured, and the degree of decompression of the suction chamber 30 and the suction performance of the suction chamber 30 are ensured. As a result, the suction means 35 generates an external air flow R <b> 1 that flows through the first outer gap 51 toward the suction gap 5 along the outer peripheral wall surface 11 of the hollow pipe 1 in the first divided guide portion 41. Further, in the second divided guide portion 42, an external air flow R <b> 2 that flows through the second outer gap 52 toward the suction gap 5 along the outer peripheral wall surface 11 is generated. As a result, the residue K remaining on the outer peripheral wall surface 11 of the hollow pipe 1 is removed by suction toward the suction passage 34 via the suction gap 5 by the external airflows R1 and R2.

  In the state shown in FIG. 3, since the inside of the pipe hole 10 of the hollow pipe 1 is not communicated with the suction gap 5, the air inside the pipe hole 10 is not substantially sucked. Therefore, the cleaning of the inside of the pipe hole 10 of the hollow pipe 1 cannot be expected so much, and only the residue K remaining on the outer peripheral wall surface 11 of the hollow pipe 1 is cleaned.

  In the state shown in FIG. 3, as described above, the suction chamber 30 communicates with the outside air through a flow path having a narrow flow path cross-sectional area of the first outer gap 51 and the second outer gap 52. . For this reason, the speed of the external airflow R1 flowing through the first outer gap 51 and the speed of the external airflow R2 flowing through the second outer gap 52 can be increased, and the residue K remaining on the outer peripheral wall surface 11 of the hollow pipe 1 It is advantageous for cleaning.

  4 and 5 show a state in which the hollow pipe 1 is further conveyed in the direction of the arrow X1. As shown in FIGS. 4 and 5, the length of the hollow pipe 1 while the outer peripheral wall surface 11 of the hollow pipe 1 abuts the inner surface 62 i of the second lid member 62 and opens the second lid member 62 in the direction of arrow B <b> 2. The rear end portion 13 in the direction passes through the first guide hole 43 of the first divided guide portion 41 and is positioned inside the second guide hole 44 of the second divided guide portion 42. In this case, as shown in FIG. 4, the air cylinder device 7 is lowered by the control device (not shown), the lifting rod 71 is lowered in the arrow Y1 direction, the first lid member 61 is lowered in the arrow Y1 direction, The pipe inlet 45 of the first guide hole 43 of the one-division guide part 41 is closed. For this reason, the degree of decompression of the suction chamber 30 of the base 3 and the suction force of the suction chamber 30 are ensured satisfactorily. Here, the first lid member 61 is sucked in the lid closing direction (arrow A1 direction) along the laterally extending portion 721 by the suction force generated by the decompression of the suction chamber 30, so that the first lid member 61 is The closing property of closing the pipe inlet 45 of the one guide hole 43 is improved. Therefore, the degree of decompression of the suction chamber 30 of the base 3 and the suction force of the suction chamber 30 are further ensured, which is advantageous for cleaning.

  In the state shown in FIG. 5, an internal air flow K <b> 2 is generated that passes through the inside of the pipe hole 10 of the hollow pipe 1 and the rear end opening 16 of the pipe hole 10. The internal airflow K2 is sucked into the suction passage 34 through the suction gap 5. As a result, the residue K remaining inside the pipe hole 10 of the hollow pipe 1 is removed by suction from the rear end opening 16 and the suction gap 5 of the pipe hole 10 of the hollow pipe 1. Thus, the inside of the pipe hole 10 of the hollow pipe 1 is cleaned. In particular, the rear end opening 16 side of the pipe hole 10 is cleaned. The residue K removed by suction is transferred to the suction passage 34 via the suction gap 5.

  Furthermore, according to the present embodiment, as shown in FIG. 5, the outer peripheral wall surface 11 of the hollow pipe 1 faces the inner peripheral wall surface 44 i of the second guide hole 44 of the second divided guide portion 42. Therefore, a second outer gap 52 is formed between the outer peripheral wall surface 11 of the hollow pipe 1 and the inner peripheral wall surface 44 i of the second guide hole 44 of the second divided guide portion 42. In this case, since the air inside the suction chamber 30 is sucked toward the suction passage 34 by the suction means 35, the second outer gap is formed along the outer peripheral wall surface 11 of the hollow pipe 1 in the second divided guide portion 42. An external air flow R <b> 2 that passes through the hollow pipe 1 to the rear end portion 13 side is generated. The external air flow R <b> 2 flows toward the suction passage 34 through the suction gap 5. As a result, the residue K remaining on the outer peripheral wall surface 11 of the hollow pipe 1, in particular, the residue K remaining on the rear end 13 side of the outer peripheral wall surface 11 passes through the suction gap 5 and the suction passage of the base 3. Suction removal is performed on the side of 34.

  Although not shown in the drawings, when the hollow pipe 1 is further conveyed along the direction of the arrow X1, the rear end portion 13 in the length direction of the hollow pipe 1 is positioned downstream of the second lid member 62. 62 descends in the direction of arrow B1 about the pivot shaft 37 by its own weight, and the pipe outlet 46 of the second guide hole 44 of the second divided guide portion 42 is automatically closed. At this time, the first lid member 61 is closed.

  As described above, according to this embodiment, when the hollow pipe 1 is inserted into the suction chamber 30 of the base 3, the air inside the pipe hole 10 of the hollow pipe 1 is sucked through the suction chamber 30. The internal airflows K1 and K2 can be generated. As a result, residues K such as chips and oil remaining in the pipe hole 10 of the hollow pipe 1 can be removed by suction.

  Furthermore, according to the present embodiment, when the hollow pipe 1 is inserted into the suction chamber 30 of the base body 3, the air can be sucked along the outer peripheral wall surface 11 of the hollow pipe 1 to generate the external airflows R1 and R2. . For this reason, residues K such as chips and oil remaining on the outer peripheral wall surface 11 of the hollow pipe 1 can be removed.

  In particular, according to this embodiment, the ring-shaped suction gap 5 is formed between the first divided guide portion 41 and the second divided guide portion 42. Here, in the conveyance direction of the hollow pipe 1, the suction force (suction force with respect to the residue K) is the strongest in the vicinity of the suction gap 5.

  When a hollow pipe 1 is formed by cutting a long pipe, chips and the like are likely to remain near the cut portion of the hollow pipe 1. That is, chips and the like are likely to remain in the vicinity of the front end opening 15, the rear end opening 16, the front end portion 12, and the rear end portion 13 of the hollow pipe 1. Here, the front end opening 15 and the rear end opening 16 of the pipe hole 10 of the hollow pipe 1 pass through the vicinity of the suction gap 5 having the strongest suction force. For this reason, with respect to the pipe hole 10 of the hollow pipe 1, when the tip opening 15 and the rear end opening 16 of the pipe hole 10 approach the suction gap 5, the vicinity of the tip opening 15 of the pipe hole 10 and the rear end via the suction gap 5. The vicinity of the opening 16 can be intensively cleaned. Similarly, with respect to the outer peripheral wall surface 11 of the hollow pipe 1, when the front end portion 12 and the rear end portion 13 of the outer peripheral wall surface 11 approach the suction gap 5, the vicinity of the front end portion 12 and the rear end of the outer peripheral wall surface 11 are interposed via the suction gap 5. The vicinity of the portion 13 can be intensively cleaned.

  Further, since the hollow pipe residue removing apparatus according to this embodiment is incorporated in the hollow pipe conveyance line, the length of the hollow pipe 1 is reduced by the conveyance roller 2 as described above without stopping the hollow pipe 1. Both the pipe hole 10 and the outer peripheral wall surface 11 of the hollow pipe 1 can be cleaned while being conveyed along the direction. Thus, since it is not necessary to stop the hollow pipe 1, the cleaning efficiency of the residue K can be improved.

  As shown in FIG. 1, a suction gap 5 is formed between the first divided guide portion 41 and the second divided guide portion 42 which are separate from each other. For this reason, even if the residue K is caught in the suction gap 5 and clogged, at least one of the first divided guide portion 41 and the second divided guide portion 42 is loosened or removed from the base 3. Thus, the clogged residue K can be easily removed.

  According to the present embodiment, since the suction passage 34 is disposed below the suction chamber 30, it is advantageous for dropping the residue K adhering in the suction chamber 30 to the suction passage 34 side.

  6 shows a first divided guide portion 41B having a first guide hole 43B having a hole diameter different from that shown in FIG. 1, and a second divided guide portion 42B having a second guide hole 44B having a hole diameter different from that shown in FIG. Used. FIG. 6 shows a state in which the first divided guide portion 41B and the second divided guide portion 42B are detachably attached to the base 3. The gap width m1 of the suction gap 5 is also changed by exchanging the first divided guide portion 41B and the second divided guide portion 42B.

  Therefore, when the size of the residue K that passes through the suction gap 5 is large, it is preferable to greatly change the gap width m1 of the suction gap 5 by exchanging the first division guide portion 41B and the second division guide portion 42B. Thereby, it is possible to cope with a change in the size of the residue K that passes through the suction gap 5. Furthermore, the strength of the suction force using the suction gap 5 can be adjusted by changing the gap width m1 of the suction gap 5.

FIG. 7 shows a second embodiment. This embodiment basically has the same configuration as that of the first embodiment. According to the above-described embodiment, the configuration is basically the same as that of the first embodiment. The first division guide portion 41 and the second division guide portion 42 are fixed to the base 3. The second divided guide part 42 has a multilayer structure of an outer cylinder part 421 and an inner cylinder part 422. If the male screw part 424 of the inner cylinder part 422 is screwed into the female screw part 423 of the outer cylinder part 421, the inner cylinder part 422 advances toward the first divided guide part 41. Further, when the male screw portion 424 of the inner cylinder portion 422 is screwed with respect to the female screw portion 423 of the outer cylinder portion 421, the inner cylinder portion 422 is separated from the first divided guide portion 41. Thereby, the size of the gap width m1 of the suction gap 5 is adjusted. The size of the gap width m1 of the suction gap 5 is adjusted according to the required strength of the suction force and the size of the residue K. The female screw part 423 and the male screw part 424 function as a gap width adjusting unit that adjusts the size of the gap width m1 of the suction gap 5 and a suction force adjusting unit that adjusts the suction force by the suction gap 5. Note that the first divided guide portion 41 may have a multilayer structure including an outer cylinder portion and an inner cylinder portion.
[ Reference example ]

FIG. 8 shows a reference example . According to the present reference example , as shown in FIG. 8, the configuration is basically the same as that of the first embodiment except that the first lid member 61 and the second lid member 62 are not provided. As shown in FIG. 8, the base body 3 is provided with a guide portion 4 for guiding the conveyed hollow pipe 1 to the suction chamber 30. The guide part 4 includes a first divided guide part 41 and a second divided guide part 42. The first divided guide portion 41 and the second divided guide portion 42 are arranged coaxially, and are formed side by side in series along the conveyance direction (arrow X1 direction) of the hollow pipe 1.

This reference example also has basically the same functions and effects as those of the first embodiment. That is, when the hollow pipe 1 is conveyed in the direction of the arrow X1 and inserted into the suction chamber 30 of the base body 3, the inside of the pipe hole 10 of the hollow pipe 1 can be sucked. As a result, the residue K remaining inside the pipe hole 10 of the hollow pipe 1 can be removed by suction. In particular, the residue K remaining on the front end portion 12 and the rear end portion 13 of the pipe hole 10 of the hollow pipe 1 can be removed by suction.

Further, according to the present reference example , when the hollow pipe 1 is inserted into the suction chamber 30 of the base body 3, the external airflow can be generated by suction along the outer peripheral wall surface 11 of the hollow pipe 1. The external airflow is sucked into the suction passage 34 through the suction gap 5. For this reason, the residue K remaining on the outer peripheral wall surface 11 of the hollow pipe 1 can be removed.

  The present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications without departing from the scope of the invention. In the first embodiment described above, the positions of both the first division guide portion 41 and the second division guide portion 42 can be adjusted in the direction of the arrow X1, but not limited thereto, the first division guide portion 41 and the second division guide portion 42 are not limited thereto. Any one of these may be fixed to the base 3, and only the other may be adjusted in the direction of the arrow X1. The second divided guide part 42 is the same size as the first divided guide part 41 and is used so as to be opposite to each other so as to face each other. However, the second divided guide part 42 is not limited to this. It may be different from the one-division guide part 41.

  The present invention can be applied to a system for removing residues such as chips and oil remaining in the pipe hole of a hollow pipe.

It is sectional drawing which shows Example 1 and shows the state which has inserted the hollow pipe in the 1st division | segmentation guide part in the suction chamber of a base | substrate. It is an expanded sectional view which shows the principal part of the state which has inserted the hollow pipe in the 1st division | segmentation guide part in the suction chamber of a base | substrate. It is sectional drawing which shows the state which has inserted the hollow pipe in the 1st division | segmentation guide part and 2nd division | segmentation guide part of a base | substrate. It is sectional drawing which shows the state which has arrange | positioned the rear-end part of a hollow pipe in the 2nd division | segmentation guide part in the suction chamber of a base | substrate. It is sectional drawing which shows the principal part of the state which has arrange | positioned the rear-end part of a hollow pipe in the 2nd division | segmentation guide part in the suction chamber of a base | substrate. It is sectional drawing which shows the state which replaced | exchanged the 1st division | segmentation guide part and the 2nd division | segmentation guide part in a suction chamber. FIG. 10 is an enlarged cross-sectional view showing a main part in a state in which the hollow pipe is inserted into the suction chamber of the base body according to the second embodiment. It is an expanded sectional view which shows a reference example and shows the principal part of the state which has inserted the hollow pipe in the suction chamber of the base | substrate.

Explanation of symbols

  1 is a hollow pipe, 10 is a pipe hole, 11 is an outer peripheral wall surface, 12 is a front end portion, 13 is a rear end portion, 2 is a transport roller (transport means), 20 is a transport path, 3 is a base, 30 is a suction chamber, 34 Is a suction passage, 35 is a suction means, 4 is a guide portion, 41 is a first divided guide portion, 42 is a second divided guide portion, 43 is a first guide hole, and 44 is a second guide hole.

Claims (8)

A hollow pipe residue removing device for removing residue remaining in a pipe hole of a hollow pipe,
A conveying means for conveying the hollow pipe having the pipe hole along the axial length direction thereof, a base body having a suction chamber disposed in a transport path of the transport means and sucked by the suction means, and provided on the base body The hollow pipe transported by the transport means comprises a guide portion having a guide hole inserted along the axial length direction thereof,
The base is provided with a lid member that increases the degree of closure of the suction chamber of the base,
The hollow pipe residue removing device, wherein the suction chamber sucks the inside of the pipe hole of the hollow pipe inserted into the suction chamber from the guide hole of the guide portion. In Claim 1, the guide hole of the guide portion is set so that a gap is formed between the inner peripheral wall surface of the guide hole of the guide portion and the outer peripheral wall surface of the hollow pipe,
The suction chamber sucks the residue remaining on the outer peripheral wall surface of the hollow pipe in addition to the residue remaining in the pipe hole of the hollow pipe inserted into the suction chamber from the guide hole of the guide portion. A hollow pipe residue removing apparatus characterized by: 3. The guide part according to claim 1, wherein the guide part is formed by arranging a plurality of divided guide parts in series along the conveying direction of the hollow pipe, and a suction gap is provided between the adjacent divided guide parts. Formed,
The hollow pipe residue removing apparatus, wherein the suction gap communicates with the suction chamber and communicates with the guide hole of the guide portion.   In Claim 3, The said division | segmentation guide part is provided in the upstream in the conveyance direction of the said hollow pipe, the 1st division guide part which has a 1st guide hole, and the 2nd provided in the downstream in the conveyance direction of the said hollow pipe. A hollow pipe residue removing device comprising a second divided guide portion having a guide hole. 5. The lid member according to claim 4 , wherein the lid member includes a first lid member that opens and closes a first guide hole of the first divided guide portion, and a second lid member that opens and closes a second guide hole of the second divided guide portion. A hollow pipe residue removing apparatus comprising:   6. The hollow pipe residue removing device according to claim 5, wherein the second lid member has a structure in which the second lid member is pressed and opened by a tip end portion of the hollow pipe moved by the conveying means. In any 1 item | term of the Claims 1-6, the said guide part with the guide hole from which a hole diameter differs is prepared in multiple numbers, The said guide part is replaceable with respect to the said base | substrate. A hollow pipe residue removal device. The hollow pipe residue removing device according to any one of claims 3 to 7 , further comprising a gap width adjusting unit that adjusts a gap width of the suction gap.

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