JP6427481B2 - Reverse direction detection device and conveyor - Google Patents

Description

  The present invention relates to a conveyor for transporting rod-like articles, and to a reverse direction detection device provided on the conveyor.

Patent Document 1 discloses a conveying device for conveying a rod-like food. Hereinafter, the technique described in Patent Document 1 will be briefly described with reference to the reference numerals used in Patent Document 1 in parentheses.
A pair of left and right endless chains (82) are stretched around the sprockets (81a, 81b, 81c, 81d), and a part of the endless chain (82) is provided along the guides (84). A large number of cross bars (83) are stretched between the left and right endless chains (82), and the cross bars (83) are arranged at equal intervals in the continuous direction of the endless chains (82). Each time the cross bar (83) passes under the hopper (6) by the endless chain (82) being circulated, the rod-shaped food (1) passes the cross bar (83) and the next cross bar ( 83) and housed between. The rod-shaped food (1) accommodated between the adjacent cross bars (83) is conveyed by the cross bar (83).

Patent No. 4832003

By the way, when carrying out rod-like articles (for example, ballpoint pens or mechanical pencils) other than food by the conveying device described in Patent Document 1, the direction of the rod-like articles disposed between the crossbars (83) becomes important is there. That is, it may be important whether one end of the rod-like article is close to one endless chain (82) or the other endless chain (82).
For example, if the ballpoint pen is transported with the pen tip close to one endless chain (82) side, the ballpoint pen is bagged in a normal direction, and the bagged ballpoint pen points downward. It is displayed in the standing state. On the other hand, when the ballpoint pen is transported with the pen tip close to the other endless chain (82) side, the ballpoint pen is bagged in the reverse direction, and the bagged pen is erected so that the pen tip is facing upward. It is displayed in the state of Therefore, it becomes important whether the pen point is close to one endless chain (82) or the other endless chain (82), and the direction of the ballpoint pen is determined in consideration of the direction of the bag. It is necessary to transport the ballpoint pen.
However, with the technique described in Patent Document 1, the direction of the rod-like article can not be determined.

  Therefore, the present invention has been made in view of the above circumstances. The problem to be solved by the present invention is to determine the direction of the rod-like article conveyed in the lying state.

  The main invention for solving the above problems is a reverse provided on a conveyor for conveying the rod-like article in a direction intersecting the longitudinal direction of the rod-like article in a state where the rod-like article having a magnetic material at its end is placed sideways A direction detection device, comprising: a magnet spaced from a transport path of the rod-like article and disposed close to one side in the width direction of the transport path; and a detection mechanism for detecting that the rod-like article is attracted to the magnet And a reverse direction detection device.

  Moreover, the main invention for solving the above-mentioned subject is the conveyance stand which supports the said rod-shaped article from the bottom of the rod-shaped article which has a magnetic body in the edge part and is in a lying state, and both sides of the conveyance stand in the width direction. Between the endless members, a driving mechanism for circumferentially driving the endless members in the continuous direction of the endless members, and a pair of endless members provided on the upper surface of the carrier and a part of the endless members being And a plurality of transport rods arranged in the continuous direction of the endless member, the rod-shaped articles being transported by the transport rods while the rod-like articles are disposed between the transport rods. A conveyor which conveys a magnet spaced upward from the upper surface of the carrier and located near one side in the width direction of the carrier and detecting that the rod-like article is attracted to the magnet A conveyor having a mechanism

The rod-like articles disposed between the conveying rods are conveyed by the conveying rods so that the rod-like articles pass below the magnet. Here, if the magnetic material provided at the end of the rod-like article is close to one side in the width direction of the transport table or the transport path, the magnetic material is attracted to the magnet. Then, the rod-like article is attracted to the magnet, which is detected by the detection mechanism. On the other hand, when the magnetic body provided at the end of the rod-like article is on the opposite side to the magnet side, the magnetic body is separated from the magnet, so the magnetic body can not be drawn to the magnet. Then, it is not detected by the detection mechanism. Therefore, the direction of the rod-like article can be determined. That is, it can be determined whether the magnetic material at the end of the rod-like article is near one side or the other side in the width direction of the carriage.
In addition, a magnetic body means what had the property attracted to a magnet.

  According to the present invention, it is possible to determine the orientation of the bar-like article disposed between the transport bars.

FIG. 1 is a side view of the packaging apparatus. FIG. 2 is a cross-sectional view of II-II shown in FIG. FIG. 3 is a side view of the rod-like article. FIG. 4 is an enlarged view of a portion IV shown in FIG. FIG. 5 is an enlarged view of a portion IV shown in FIG. FIG. 6 is a perspective view showing a bar-like article conveyed on the conveyance table, viewed obliquely from above. FIG. 7 is a perspective view showing a bar-like article conveyed on the conveyance table, viewed obliquely from above.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, although various limitations preferable for carrying out the present invention are given to the embodiments described below, the scope of the present invention is not limited to the following embodiments and the illustrated examples.

  FIG. 1 is a schematic side view of the conveyor 1. FIG. 2 is a cross-sectional view of the cross section taken along the line II-II shown in FIG. 1 as viewed in the arrow direction. FIG. 3 is a side view of the rod-like article 2.

  The conveyor 1 continuously conveys the rod-like articles 2 to the packaging device in a direction orthogonal to the longitudinal direction (direction perpendicular to the paper surface of FIG. 1) of the rod-like articles 2 in a lying state. Are provided to the packaging apparatus one by one. Here, the conveyer 8 of the packaging apparatus is provided on the downstream side of the conveyor 1 (right side in the plane of FIG. 1), and the rod-like articles 2 are in the width direction of the conveyor 1 (direction perpendicular to the plane of FIG. In a state of being laid flat), and is sent to the conveyer 8 by the conveyor 1. The rod-like articles 2 sent from the conveyor 1 to the conveyer 8 are conveyed by the conveyer 8 in the direction perpendicular to the sheet of FIG. 1 and packaged in a packaging material in the process of being conveyed by the conveyer 8.

  As shown in FIG. 3, the rod-like article 2 has the magnetic body 3 at one end. More specifically, the rod-like article 2 is a ballpoint pen or a mechanical pencil, and the magnetic body 3 is provided at one end of the nonmagnetic resin barrel 4. Here, when the rod-like article 2 is a ballpoint pen, the ballpoint pen refill is accommodated in the resin cylinder 4, and the metal ballpoint pen tip provided at one end of the ballpoint pen refill is the magnetic body 3. When the rod-like article 2 is a mechanical pencil, the core feeding mechanism built in at the tip of the resin-made axial cylinder 4 is the magnetic body 3.

  As shown in FIGS. 1 and 2, the conveyor 1 includes a machine frame 11, a supply stand 20, a transfer stand 25, a support guide 29, a pair of sprockets 31 to 35, a pair of endless chains 36, a plurality of transfer bars 40 and a control unit It has 90 mag. Moreover, this conveyor 1 has a reverse direction detection apparatus which detects that the direction of the rod-shaped goods 2 conveyed in the state which lie in a reverse direction. The reverse direction detection device includes a magnet 50, a detection mechanism 60, and a control unit 90. The control unit 90 serves as a control unit of the conveyor 1 and a control unit of the reverse direction detection device.

  The supply stand 20 is provided such that the upper surface 21 thereof has a downward slope toward the downstream side. On the supply stand 20, for example, with a plurality of rod-like articles 2 being placed sideways by an operator, the magnetic body 3 is directed to one side in the width direction of the conveyor 1 (for example, the front side of the sheet of FIG. These rod-like articles 2 are supplied in the closed state. When the rod-like article 2 supplied onto the supply stand 20 descends the inclined surface 21 of the supply stand 20, the axial direction of the rod-like article 2 is substantially with respect to the width direction of the supply stand 20 (vertical direction of the paper of FIG. 1). It becomes parallel.

  The transport stand 25 is formed of a bent plate-like member, and is attached to the machine frame 11. The carrier table 25 includes an upward slope portion 26 inclined upward toward the downstream side, a horizontal portion 27 horizontally extending from the upper end of the upward slope portion 26 toward the downstream side, and a downstream end of the horizontal portion 27 And a semi-cylindrical portion 28 extending in an arc shape downward from the portion. The upper surface of the upslope portion 26 and the horizontal portion 27 and the outer peripheral surface of the semi-cylindrical portion 28 serve as the transport path of the rod-like article 2.

  On the upstream side of the carrier table 25, the lower part of the upward slope 26 is separated from the lower end of the inclined surface 21 of the supply table 20 by a distance approximately equal to the diameter of the carrier rod 40 described later. Are assembled to each other. On the other hand, on the downstream side of the transport table 25, the support guide 29 is provided to surround the downstream side portion of the horizontal portion 27 and the semicylindrical portion 28 from the upper side of the downstream side portion of the horizontal portion 27 to the lower side of the semicylindrical portion 28 There is. The support guide 29 is attached to the machine frame 11 so as to be separated radially outward from the downstream side portion of the horizontal portion 27 and the semi-cylindrical portion 28, and the lower end of the support guide 29 is disposed above the transport machine 8. It is done. Further, the downstream side portion of the horizontal portion 27 and the distance from the semi-cylindrical portion 28 to the support guide 29 are set so that one rod-like article 2 can pass through. Specifically, since the thickness of the rod-like article 2 is not uniform, the downstream side portion of the horizontal portion 27 and the distance from the semi-cylindrical portion 28 to the support guide 29 are also not uniform, and the rod-like article 2 does not shake Thus, it is inserted between the downstream side portion of the horizontal portion 27 and the semi-cylindrical portion 28 and the support guide 29.

  The pair of sprockets 31 is rotatably attached to the machine frame 11 on both sides of the carrier table 25 in a state of being coaxial with the width direction (the direction perpendicular to the paper surface of FIG. 1) spaced apart. The same applies to the sprockets 32-35.

  Sprockets 31 are disposed on both sides of the lower portion of the upslope portion 26, sprockets 32 are disposed on both sides of the corner between the upslope portion 26 and the horizontal portion 27, and sprockets 33 are provided at the downstream end of the horizontal portion 27. It is arranged on both sides. The sprocket 33 is disposed above the carrier 8. The axis of the sprocket 33 overlaps the axis of the half cylinder portion 28, and the half cylinder portion 28 extends in the circumferential direction with respect to the axis of the sprocket 33. Sprockets 34 and 35 are disposed below the horizontal portion 27.

  An endless chain 36 is stretched around the sprockets 31 to 35. The endless chain 36 is folded back by the sprocket 31, and a portion of the endless chain 36 from the sprocket 31 to the sprocket 32 is inclined upward along the upper surface of the upward slope portion 26. Of the endless chain 36, a portion from the sprocket 32 to the sprocket 33 is provided horizontally along the upper surface of the horizontal portion 27. The endless chain 36 is folded back by the sprocket 33. The conveyance motor 37 is connected to any of the sprockets 31 to 35, and the endless chain 36 is circulated by the drive motor 37. The circumferential direction of the endless chain 36 is from the sprocket 31 to the sprocket 33 via the sprocket 32. The mechanism including the sprockets 31 to 35 and the drive motor 37 is a drive mechanism for driving the endless chain 36 in a circulating manner.

  The drive motor 37 is controlled by the controller 90. The control unit 90 is configured of, for example, a control circuit including a programmable logic controller (PLC) and a motor driver.

  A plurality of transfer rods 40 are attached to the endless chain 36. The transport rods 40 are bridged between the endless chains 36 on both sides so as to be arranged at equal intervals in the continuous direction of the endless chains 36. The distance between the adjacent transfer rods 40 is set such that one rod-like article 2 is accommodated in the space between the transfer rods 40. Therefore, every time the transport rod 40 passes upward between the lower end of the inclined surface 21 of the supply table 20 and the upward slope portion 26 by the circulation of the endless chain 36, the conveyance by which the rod-like article 2 on the inclined surface 21 passes It is accommodated in the space of the rod 40 and the next transfer rod 40. The rod-like articles 2 accommodated between the adjacent transfer rods 40 are parallel to the transfer rods 40.

  By the rotation of the endless chain 36, the carrier rod 40 moves on the uphill section 26 from the sprocket 31 to the sprocket 32. Therefore, the rod-like article 2 accommodated between the transport rods 40 is guided by the upslopes 26 and transported downstream so as to ascend the upslopes 26.

  Further, the transport rod 40 moves on the horizontal portion 27 from the sprocket 32 to the sprocket 33 by the rotation of the endless chain 26. Therefore, the rod-like article 2 conveyed to the upper end of the upslope portion 26 is guided by the horizontal portion 27 and conveyed on the horizontal portion 27 to the downstream side.

  Further, by the rotation of the endless chain 26, the transport rod 40 moves downward around the semi-cylindrical portion 28. Therefore, the rod-like article 2 conveyed to the downstream end of the horizontal portion 27 is conveyed between the half cylinder portion 28 and the support guide 29 to the lower end of the support guide 29. The rod-like article 2 conveyed to the lower ends of the support guide 29 and the semi-cylindrical portion 28 falls on the conveyor 8. The dropped rod-like article 2 is transported by the transport machine 8.

  By the way, the thickness of the rod-like article 2 is not uniform as described above, and the distance from the downstream side portion of the horizontal portion 27 and the semi-cylindrical portion 28 to the support guide 29 is also not uniform. Therefore, although the rod-like article 2 should be supplied onto the supply stand 20 with the magnetic body 3 directed to one side in the width direction of the conveyor 1 (the front side of the sheet of FIG. 1), the rod-like article 2 is erroneous. When the magnetic body 3 is supplied onto the supply stand 20 with the magnetic body 3 directed to the opposite side (the back side of the sheet of FIG. 1), the rod-shaped article 2 in the opposite direction is half tube portion 28 and support guide 29 There is a risk of getting stuck between the Therefore, it is detected that the magnetic body 3 of the rod-shaped article 2 in the reverse direction is attracted by the magnet 50 and the rod-shaped article 2 is attracted to the magnet 50 so that the rod-shaped article 2 in the opposite direction is detected by the reverse direction detection device. It is to be detected by mechanism 60.

  Below, with reference to FIG.2 and FIG.4-FIG. 7, the magnet 50 of a reverse direction detection mechanism, the detection mechanism 60 grade | etc., Is demonstrated in detail. 4 and 5 are enlarged views of the IV region shown in FIG. 1, and FIGS. 6 and 7 are perspective views of the horizontal portion 27 of the carrier table 25 as viewed from obliquely above. Here, FIGS. 4 and 6 show a state in which the rod-like article 2 is not detected, and FIGS. 5 and 7 show a state in which the rod-like article 2 in the reverse direction is detected.

  A pair of left and right support columns 51 are attached to the machine frame 11 in a state of being erected on both sides of the horizontal portion 27 respectively. The upper portions of the columns 51 are connected by a guide rod 52. The guide rod 52 is passed through the support block 53, and the support block 53 is fixed to the guide rod 52 by a fixing member (for example, a screw) provided on the support block 53. Since the support block 53 can be moved in the width direction along the guide rod 52 when the fixing tool is unlocked, the position of the support block 53 can be adjusted.

  A support bar 54 is provided on the support block 53 so as to penetrate vertically, and the support bar 54 is fixed to the support block 53 by a second fixing tool (for example, a screw) provided on the support block 53. A magnet 50 is attached to the lower end of the support bar 54 so that the magnet 50 is disposed above the horizontal portion 27 of the carrier table 25. When the fixation of the second fixing tool is released, the support bar 54 can move up and down, and the height of the magnet 50 can be adjusted.

  As shown in FIG. 2, the support block 53 and the magnet 50 are disposed close to one side in the width direction (direction perpendicular to the paper surface of FIG. 1) of the horizontal portion 27. Specifically, the support block 53 and the magnet 50 are disposed on the back side of the paper surface of FIG. 1.

  When the rod-like article 2 is supplied onto the supply table 20 in a state where the magnetic body 3 of the rod-like article 2 faces the front side of the sheet of FIG. 1, FIG. 4 and FIG. Since the magnetic body 3 of the rod-like article 2 is shifted in the width direction from the magnet 50 when passing through, the magnetic body 3 is not attracted to the magnet 50 as shown in FIG. 4 and FIG.

  On the other hand, when the rod-like article 2 is supplied onto the supply stand 20 while the magnetic body 3 of the rod-like article 2 is mistakenly directed to the back side of the sheet of FIG. 1, FIG. 4 and FIG. When passing downward on the downstream side, the magnetic body 3 of the rod-like article 2 moves immediately below the magnet 50, so the magnetic body 3 is attracted to the magnet 50 as shown in FIGS. Then, the rod-like article 2 is lifted from the horizontal portion 27.

  As shown in FIG. 2, FIG. 4 and FIG. 5, the detection mechanism 60 for detecting that the rod-like article 2 is drawn to the magnet 50 includes the support 61, the shaft 62, the rotation block 63, the detection lever 64, and the second rotation block 71, an operation lever 72, a bracket 73, and a proximity sensor 74.

  The pair of left and right columns 61 is attached to the machine frame 11 in a state of being erected on the upstream side of the column 51. A shaft 62 is rotatably connected to an upper portion of the support 61. The shaft 62 is passed through the rotation block 63, and the rotation block 63 is fixed to the shaft 62 by a third fixing member (for example, a screw) provided on the rotation block 63. When the fixing of the third fixing tool is released, the rotation block 63 can be moved in the width direction along the shaft 62, so that the position of the rotation block 63 can be adjusted.

An upper end portion of a detection lever 64 is connected to the rotation block 63, and the detection lever 64 extends downward and downstream from the rotation block 63. Since the shaft 62 is rotatably provided, the detection lever 64 is pivotally provided around the shaft 62. The shaft 62 is held at a predetermined rotation angle by an elastic member such as a torsion spring, whereby the posture of the detection lever 64 is held, and the tip of the detection lever 64 is from the horizontal portion 27 of the carrier table 25 and the carrier rod 40 Spaced up (see FIGS. 4 and 6). The state of the shaft 62, the rotation block 63 and the detection lever 64 is hereinafter referred to as a natural state.
When the tip of the detection lever 64 is pushed up against the elastic force of the elastic member, the detection lever 64 is swung up around the shaft 62 and the rotation block 63 rotates around the shaft 62 (see FIGS. 5 and 7).
When the push-up of the tip of the detection lever 64 is released, the detection lever 64 is swung down around the shaft 62 by the elastic force of the elastic member, and the detection lever 64 and the rotation block 63 return to the natural state.

  As shown in FIG. 2, the detection lever 64 and the rotation block 63 are disposed closer to the center than the support block 53 and the magnet 50. Further, as shown in FIGS. 4 and 5, the position of the tip of the detection lever 64 and the position of the magnet 50 in the transport direction of the rod-like article 2 are substantially aligned.

  As shown in FIGS. 2, 4 and 5, the second rotation block 71 is fixed to the end of the shaft 62. The end portion of the action lever 72 is connected to the second rotation block 71, and the action lever 72 extends from the second rotation block 71 to the upstream side. Since the shaft 62 is rotatably provided, the action lever 72 is provided so as to be able to pivot around the shaft 62 integrally with the detection lever 64.

  A bracket 73 is attached to the upper portion of the support 61 so as to extend downstream. A proximity sensor (specifically, a proximity switch) 74 is provided at the tip of the bracket 73. The proximity sensor 74 is disposed above the tip of the action lever 72. The proximity sensor 74 is, for example, an inductive proximity sensor, a capacitive proximity sensor, or a magnetic proximity sensor.

When the shaft 62, the rotation block 63 and the detection lever 64 are in the natural state, the tip of the action lever 72 is close to the proximity sensor 74, and a signal (for example, a low level signal) to that effect is controlled from the proximity sensor 74 It is output to the part 90. When the tip of the detection lever 64 is in the swinging up state, the tip of the action lever 72 is separated from the proximity sensor 74, and a signal (for example, a high level signal) to that effect is output from the proximity sensor 74 to the controller 90. Output to During operation of the drive motor 37, the controller 90 monitors the output signal of the proximity sensor 74.
Instead of the proximity sensor 74, an optical sensor, a contact sensor, a self-returning push switch (momentary operation type push switch), or another switch (switch) may be used.

  As described above, when the rod-like article 2 is supplied onto the supply stand 20 in a state where the magnetic body 3 of the rod-like article 2 faces the front side of the sheet of FIG. And the magnetic body 3 of the rod-shaped article 2 which passes through the downward direction below the magnet 50 is not drawn by the magnet 50 (refer FIG.4 and FIG.6). Therefore, since the rod-like article 2 is in soft contact with the tip of the detection lever 64 or is separated downward from the tip, the tip of the action lever 72 is in proximity to the proximity sensor 74. Therefore, a signal indicating that the tip end portion of the action lever 72 is in proximity to the proximity sensor 74 is output from the proximity sensor 74 to the control unit 90, so that the drive motor 37 is continuously driven by the control unit 90.

  On the other hand, when the rod-like article 2 is supplied onto the supply stand 20 while the magnetic body 3 of the rod-like article 2 is erroneously directed to the back side of the sheet of FIG. The magnetic body 3 of the rod-like article 2 passing downstream of the magnet 50 is drawn to the magnet 50 (see FIGS. 5 and 7). Then, the rod-like article 2 is lifted from the horizontal portion 27, and the tip of the detection lever 64 is pushed by the rod-like article 2 and swung up. Therefore, the tip of the operation lever 72 is separated from the proximity sensor 74, and a signal to that effect is output from the proximity sensor 74 to the control unit 90, so the drive motor 37 is stopped by the control unit 90. At this time, an alarm (for example, an alarm light or an alarm speaker) connected to the control unit 90 may be operated by the control unit 90.

As described above, according to the present embodiment, the rod-shaped article 2 in the reverse direction can be detected. In particular, when the diameter of the rod-like article 2 is smaller than the diameter of the transport rod 40, a step is formed between the circumferential surface of the rod-like article 2 transported on the horizontal portion 27 and the circumferential surface of the transport rod 40. However, even in such a case, since the rod-shaped article 2 in the reverse direction is pulled out from between the transport bars 40 by the magnet 50, the rod-shaped article 2 in the reverse direction can be detected.
On the other hand, when the shaft 62, the rotation block 63 and the detection lever 64 are in the natural state, the tip of the detection lever 64 is separated upward from the transport rod 40, so the rod-like article 2 larger in diameter than the transport rod 40 When passing under the tip of the detection lever 64, the tip of the detection lever 64 is not pushed up by the rod-like article 2. Therefore, the rod-shaped article 2 having a large diameter in the normal direction is not erroneously detected as the reverse direction.
Thus, the conveyor 1 corresponds to the transport of rod-like articles 2 of various diameters.

  Since the proximity sensor 74 is disposed apart from the magnet 50, the proximity sensor 74 is not affected by the magnetic field of the magnet 50, and the proximity sensor 74 operates normally.

  As mentioned above, although the form for implementing this invention was demonstrated, the said embodiment is for making an understanding of this invention easy, and this invention is not limited and interpreted to the said embodiment. Further, the above embodiments may be modified or improved without departing from the spirit of the present invention, and the present invention also includes the equivalents thereof. Although the following describes some of the changes from the above embodiment, some of the changes described below may be combined as much as possible.

(1) In the above embodiment, it is normal for the rod-like article 2 to be supplied onto the supply stand 20 with the magnetic body 3 directed to the near side of the sheet of FIG. 1, FIG. 4 and FIG. The block 53 and the magnet 50 were disposed at the back of the sheet of FIG. 1, FIG. 4 and FIG. 5 (see FIG. 2). On the other hand, if it is normal for the rod-like article 2 to be supplied onto the supply stand 20 with the magnetic body 3 directed to the back side of the sheet of FIG. 1, FIG. 4 and FIG. The magnet 50 is disposed on the front side of the sheet of FIG. 1, FIG. 4 and FIG. In this case, the rotary block 63 and the detection lever 64 are disposed close to the front side of the sheet of FIG. 1, FIG. 4 and FIG. 5, but the tip of the detection lever 64 is wider than the magnet 50 in the width direction of the carrier table 25. It is located near the center of the

(2) The endless chain 36 of the above embodiment may be changed to an endless belt or an endless wire, and the sprockets 31 to 35 may be changed to pulleys.

(3) In the above embodiment, when the shaft 62, the rotation block 63, and the detection lever 64 are in the natural state, the proximity sensor 74 is brought close to the tip end of the action lever 72 from above. Was attached to the tip of the. On the other hand, even when the shaft 62, the rotation block 63 and the detection lever 64 are in the natural state, the proximity sensor 74 is attached to the end of the bracket 73 as being separated downward from the end of the action lever 72. Good. In this case, if the direction of the rod-like article 2 is reverse, the tip of the detection lever 64 is swung up by the rod-like article 2 by pulling the magnetic body 3 of the rod-like article 2 toward the magnet 50 during conveyance of the rod-like article 2 The tip of the operation lever 72 approaches the proximity sensor 74, whereby the control unit 90 stops the drive motor 37.

(4) As a detection mechanism for detecting that the magnetic body 3 of the rod-like article 2 is drawn to the magnet 50, a detection mechanism different from the detection mechanism 60 as described above may be adopted. For example, an electrical first contact is provided on the outer peripheral surface of the shaft 62, and an electrical second contact is provided on the support 61 at a position circumferentially away from the first contact, and the magnetic body 3 of the rod-like article 2 is When the tip of the detection lever 64 is swung up by being drawn to the magnet 50, the first contact and the second contact may be in contact. The first contact may be changed to a Hall element, and the second contact may be changed to a magnet. Conversely, the first contact may be changed to a magnet, and the second contact may be changed to a Hall element.
Further, as another example, an optical sensor including a light projector and a light receiver is provided above the horizontal portion 27 of the carrier table 25, and when the magnetic body 3 of the bar-like article 2 is drawn to the magnet 50, the bar-like article 2 is used as an optical sensor When the rod-like article 2 is separated from the magnet 50, the rod-like article 2 may not be detected by the optical sensor.

(5) In the above embodiment, the detection mechanism 60 is a lever type that employs the detection lever 64 and the action lever 72, but may be a rod type that employs a rod. As an example of the rod type, the rod is vertically movably provided closer to the center than the magnet 50, and the proximity sensor is provided in the vicinity of the upper end of the rod. The rod is maintained in a lowered state by an elastic member such as a spring. In this state, the lower end of the rod is separated upward from the transport bar 40, and the upper end of the rod is separated downward from the proximity sensor. And when the rod-shaped article 2 is supplied on the supply stand 20 in the state which turned the magnetic body 3 of the rod-shaped article 2 to the back side of the paper surface of FIG.1, FIG.4 and FIG.5 accidentally, The magnetic material 3 of the passing rod-like article 2 is drawn to the magnet 50, the rod is pushed up by the rod-like article 2, the upper end of the rod approaches the proximity sensor, and the fact is detected by the proximity sensor.

(6) In the above embodiment, the transport rod 40 is provided so as to be installed between the endless chains 36 on both sides, but instead of the transport rod 40, the transport trays (buckets) are between the endless chains 36 on both sides. It may be provided so as to be erected on the The transport tray has an accommodation recess in which the rod-like articles 2 are accommodated.

(7) In the said embodiment, although the magnet 50 was a permanent magnet, you may change this to an electromagnet.

(8) A belt conveyor may be installed instead of the supply stand 20. The belt conveyor is installed in a state where the downstream end of the belt conveyor is separated from the lower part of the upslope portion 26 by a distance approximately equal to the diameter of the transport bar 40. Then, when the bar-like article is conveyed by the belt conveyor to the downstream end of the belt conveyor, the bar-like article is moved from the belt conveyor to the space between the adjacent conveying bars 40.

  DESCRIPTION OF SYMBOLS 1 ... Conveyor, 2 ... Rod-shaped article, 3 ... Magnetic body, 4 Resin axial cylinder, 8 conveyors, 25 conveyance base, 31-35 ... Sprocket, 36 ... Endless chain, 37 ... Drive motor, 40 ... Transport bar, 50 ... Magnet, 60 ... detection mechanism, 61 ... post, 62 ... shaft, 63 ... rotation block, 64 ... detection lever, 71 ... second rotation block, 72 ... action lever, 73 ... bracket, 74 ... proximity sensor, 90 ... control Department

Claims (5)

A reverse direction detection device provided on a conveyor for transporting the rod-like article in a direction intersecting the longitudinal direction of the rod-like article in a state in which the rod-like article having a magnetic body at an end portion is horizontal.
A magnet spaced from the transport path of the rod-like article by the conveyor and disposed on one side in the width direction of the transport path;
And a detection mechanism for detecting that the rod-like article is attracted to the magnet. The detection mechanism
A shaft extending in the width direction of the transport path at a position away from the transport path;
A detection lever extending from the shaft to the magnet and swingably provided around the shaft;
An action lever that extends from the shaft and is provided so as to be pivotable around the shaft integrally with the detection lever;
And a proximity sensor disposed in the vicinity of the tip of the action lever;
The reverse direction detection device according to claim 1, wherein the tip end portion of the action lever is brought into contact with and separated from the proximity sensor by swinging up and swinging down the tip end portion of the detection lever. A carrier for supporting the rod-like article from under the rod-like article having a magnetic material at the end and lying down;
A pair of endless members provided on both sides in the width direction of the transport table, and a part of which is bridged along the upper surface of the transport table;
A drive mechanism which rotationally drives the endless member in the continuous direction of the endless member;
And a plurality of transport rods disposed between the endless members and spaced apart in the continuous direction of the endless members;
A conveyor for transporting the rod-like article by the transport bar in a state where the rod-like article is disposed between the transport bars,
A magnet spaced upward from the upper surface of the transfer table and disposed on one side in the width direction of the transfer table;
And a detection mechanism for detecting that the rod-like article is attracted to the magnet. The detection mechanism
A shaft extending in the width direction of the transfer table at a position spaced upward from the upper surface of the transfer table;
A detection lever extending from the shaft to the magnet and swingably provided around the shaft;
An action lever that extends from the shaft and is provided so as to be pivotable around the shaft integrally with the detection lever;
And a proximity sensor disposed in the vicinity of the tip of the action lever;
The conveyor according to claim 3, wherein the tip end portion of the action lever contacts and separates from the proximity sensor by swinging up and swinging down the tip end portion of the detection lever. A control unit that controls the drive mechanism;
The conveyor according to claim 3 or 4, wherein the control unit stops the drive mechanism when the detection mechanism detects that the rod-like article is drawn to the magnet.

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