JP6259595B2 - Scraper conveyor - Google Patents

Description

  The present invention relates to a scraper conveyor, and more particularly, to a scraper conveyor having a discharge portion that can discharge an object to be conveyed at an intermediate position in a conveyance path.

  As shown in FIG. 1 of Patent Document 1, the scraper conveyor is a transport path formed by attaching a scraper at a constant interval between two endless chains on the left and right sides, pulling the endless chain, and moving these scrapers. It is a conveying apparatus which conveys the to-be-conveyed object in a ditch | groove. Such a scraper conveyor is used for transporting various objects to be transported such as debris, sludge, powder and granular materials.

  In such a scraper conveyor, there is a conveyor having a discharge unit that discharges the object to be conveyed not only at the end position of the transfer path but also at an intermediate position on the transfer path that is upstream of the end position in the transfer direction.

  Thus, according to the conveyor which has a discharge part in the middle position of a conveyance path, a some discharge part can be provided as a whole conveyor by providing a discharge part in the terminal position and middle position of the conveyance path. Then, by providing a plurality of discharge units, for example, a transported object storage container is arranged below each of the discharge units of the plurality of discharge units, and the container below one discharge unit is filled with the transported object. When it becomes a scraper, the discharge part is closed, the conveyed object is discharged to a container below the other discharge part, and the container filled in the meantime is replaced with another empty container. There is an advantage that it is possible to carry out and carry out the transported object without stopping the operation of the conveyor.

  Here, in a scraper conveyor that transports sludge, powder, granular materials, etc., the object to be transported adheres to the scraper and is transported without being discharged from the discharge section provided at the end of the transport path of the scraper conveyor. A mechanism for scraping the object to be conveyed to the discharge part at the end of the conveying path (hereinafter referred to as the object to be conveyed) in order to prevent the object from returning to the conveying object supply unit through the return path of the conveying path together with the scraper. Often provided with a scraping mechanism.

  FIG. 7 is a diagram for explaining a conventional scraper conveyor in which a transported object scraping mechanism is provided at a discharge portion at a transport path end portion. As shown in the figure, the transported object 72 is transported on the forward path of the transport path by the scraper 74 and discharged from the discharge portion 76 provided at the end of the transport path, and the transport surface 74a of the scraper 74 is provided on the arm. Abuts against a blade 80 (see FIG. 5B) installed between the tips.

  As the scraper 74 further moves in the transport direction, the arm 78 rotates about the shaft portion 84 against the biasing force of the coil spring 82, and the blade 80 slides on the transport surface 74 a of the scraper 74 by this rotation. Then, the transported object 72 attached to the transport surface 74 a is scraped off, and is separated from the tip of the scraper 74 and comes into contact with the side surface of the arm 78.

  Thereafter, the scraper 74 slides on the side surface of the arm 78 and pivots along the track of the endless chain 86 in the return direction of the conveying path to move away from the side surface of the arm 78, and the original force is applied by the urging force of the coil spring 82. Return to position. At this original position, the arm 78 waits for the next scraper 74 located downstream in the transport direction.

  Through the above series of operations, the transported object scraping mechanism can continuously remove the transported object 74 attached to the transport surface 74a of each scraper 74 supported by the endless chain 86.

JP2004-035244

  As described above, in the discharge section at the end of the transport path, the scraper swings from the forward path of the transport path to the return path in accordance with the track of the endless chain. It is possible to provide a scraping mechanism.

  However, it is difficult to operate the scraped object scraping mechanism so as not to hit the scraper at an intermediate position in the transport path. In addition, it is not realistic from the viewpoint of cost and transport efficiency to change the path of the scraper in the middle of the transport path. Therefore, it is difficult to provide a transported object scraping mechanism in the discharge unit at a midway position in the transport path.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a scraper conveyor that can accurately scrape off the object to be conveyed attached to the scraper at the discharge portion located in the middle of the conveying path. is there.

The invention according to claim 1 for solving the above-mentioned problem is to push and convey the object to be conveyed in the concave groove conveying path by the scraper continuously moved by driving the endless chain, and in the middle of the concave groove conveying path. In the scraper conveyor having a discharge portion at a position, the discharge portion has an opening at the bottom of the concave groove conveyance path for discharging an object to be conveyed in the concave groove conveyance path by natural fall, and in the vicinity of the opening. A pivot arm that is pivotally mounted so that the tip pivots in a height range that extends at least from the base end to the tip of the scraper, and is attached to the tip of the pivot arm. A blade having a length over the entire length in the width direction of the conveying surface, which is a surface for pushing the conveyed object, an urging means for urging the distal end of the rotating arm in the proximal direction, and provided in the vicinity of the opening. , Has a pivot bar that rotates in conjunction with the driving of Kimutan chain, a shaft attachment of the pivot arm, the width direction entire length of the blade is the scraper by moving the scraper of the conveying direction over to become a contact state, Ninasa is to slide moves beyond the tip from its proximal end on the conveying surface of the scraper by a further movement of the scraper, the turning bar, during the pivoting operation The tip has a length that makes contact with the turning arm, and the turning timing of the turning bar is such that the tip of the turning bar rotates when the blade finishes sliding to the tip of the scraper. The tip of the rotating arm is prevented from returning to the height of the base end of the scraper by the urging force of the urging means in contact with the moving arm, and the tip of the rotating arm is gently moved by the further turning operation. Previous Wherein the distal end of the moving bar after allowing movement to return to the height of the proximal end of the scraper is intended to away from the pivot arm.

  According to this configuration, in the discharge portion at the midway position of the concave groove conveying path, the object to be conveyed that is conveyed in the concave groove conveying path is attached to the scraper by the blade attached to the tip of the rotating arm. After being scraped off, the blade slides beyond the tip of the scraper, so that the movement of the scraper in the conveying direction is not hindered by the blade.

  Furthermore, after the scraper moves in the transport direction beyond the blade, the tip of the rotating arm returns to the base end direction of the scraper according to the biasing force of the biasing means. Preparations for scraping are made.

Therefore, it is possible to install a scraping mechanism for the object to be conveyed attached to the scraper at the discharge part in the middle of the conveyance path of the scraper conveyor, and the object to be conveyed attached to the scraper in the discharge part in the middle of the conveyance path. Accurate scraping can be performed. In addition, after the blade scrapes off the object to be conveyed attached to the scraper and exceeds the tip of the scraper, the biasing force of the biasing means causes the tip of the pivot arm to return to the height of the base end of the scraper. Regulated by. That is, when the height of the tip of the scraper is exceeded, the tip of the rotating arm is restrained, and the tip of the rotating arm slowly returns to the height of the base end of the scraper by further turning operation of the turning bar. Become. Therefore, it is possible to prevent impact and noise when the tip of the rotating arm returns to the height of the base end of the scraper according to only the urging force of the urging means, and thereby the durability of the rotating arm, the urging means and other members can be prevented. Improvement can be expected.

  According to a second aspect of the present invention, in the scraper conveyor according to the first aspect, the shaft portion of the rotating arm is a pair of bearings provided at opposite positions on both outer sides in the width direction of the concave groove conveying path. The pivot arm is provided at positions on both outer sides in the width direction of the concave groove conveying path of the shaft portion, and the blade is installed between the ends of the pair of pivot arms. Features.

  The invention according to claim 2 specifically shows an example of the configuration of the scraper conveyor according to claim 1, and according to this, the blades are opposed to each other on both sides in the width direction of the groove conveying path. Are supported between the ends of a pair of rotating arms that are pivotally supported by each of the rotating arms and are respectively rotated outside the groove conveying path. Therefore, a configuration for avoiding the scraping mechanism of the object to be conveyed attached to the scraper from the track of the scraper is achieved with a simple configuration.

According to a third aspect of the present invention, the scraper continuously moved by driving the endless chain pushes and conveys the object to be conveyed in the concave groove conveying path, and has a discharge portion at a midway position of the concave groove conveying path. In the conveyor, the discharge portion has an opening at the bottom of the groove conveying path, which discharges the object to be conveyed in the groove conveying path by natural fall, and is provided in the vicinity of the opening, at least of the scraper. A pivot arm that is pivotally mounted so that the distal end pivots in a height range that extends from the base end to the distal end, and a surface that is attached to the distal end of the pivot arm and pushes the object to be conveyed of the scraper A blade having a length over the entire length in the width direction of the conveying surface, an urging means for urging the distal end of the rotating arm in the proximal direction, and the opening on the upstream side in the conveying direction of the object to be conveyed Open position and A lid that can slide open and close at a closed position on the downstream side in the feeding direction; a roller that is provided at a tip of the rotating arm and protrudes outward in the width direction of the groove conveying path; and the lid A plate member coupled to a support portion via a support portion and extending in the transport direction as a longitudinal direction, and the pivot arm is attached to the blade by the movement of the scraper in the transport direction. wherein becomes contact state over the width direction entire length of the scraper, which is adapted to slide moves beyond the tip from its proximal end on the conveying surface of the scraper by a further movement of the scraper, the plate member , The inclined side on the downstream side in the conveying direction that inclines so as to protrude downstream in the conveying direction as it moves from the lower side in the height direction to the upper side, and the upstream side in the conveying direction from the lower end in the height direction of the inclined side Extend to A lower side, and the roller is positioned on an extension line in the longitudinal direction of the plate member, and the roller is arranged from the open position on the upstream side in the transport direction to the closed position on the downstream side in the transport direction. When the opening is closed by sliding, the roller contacts the inclined side of the plate member and moves downward according to the inclination of the inclined side to move the tip of the rotating arm downward. So that the tip of the pivot arm and the blade attached to the tip of the pivot arm are maintained at a position below the lid portion in the closed state. It is characterized by being made .

  According to the present invention, it is possible to install a scraping mechanism for the object to be conveyed attached to the scraper at the discharge portion in the middle of the conveyance path of the scraper conveyor, so that the scraper provided with the discharge portion in the middle of the conveyance path. Even if it is a conveyor, it becomes possible to improve the conveyance efficiency of a to-be-conveyed object.

It is a front view of the scraper conveyor 10 which concerns on embodiment of this invention. It is the II-II sectional view taken on the line of FIG. It is the front view which looked at the scraper conveyor 10 of FIG. 2 from the arrow 200 direction. FIG. 3 is a rear view of the scraper conveyor 10 of FIG. It is the VV sectional view taken on the line of FIG. It is the VI-VI sectional view taken on the line of FIG. It is a figure for demonstrating scraping off of the to-be-conveyed object 14 from the scraper 22 in the 2nd discharge part 30 (discharge part). It is a rear view near opening 31 of the state where the 2nd discharge part 30 (discharge part) was closed. (A) It is a front view which shows the discharge part 72 of the conventional scraper conveyor 70. FIG. (B) It is a top view which shows the discharge part 72 of the conventional scraper conveyor 70. FIG.

  Next, embodiments of the present invention will be described in detail with reference to the drawings. A scraper conveyor 10 of the present invention used for transporting an object to be transported will be described with reference to FIGS. 1 is a front view of a scraper conveyor 10 according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line II-II in FIG. 1, and FIG. 3 is a view of the scraper conveyor 10 in FIG. 4 is a rear view of the second scraper conveyor 10 as viewed from the direction of the arrow 300, FIG. 5 is a cross-sectional view taken along the line V-V in FIG. 2, and FIG. FIG. 7 is a cross-sectional view taken along line VI. FIG. 7 is a view for explaining scraping off of the conveyed object 14 from the scraper 22 in the second discharge unit 30 (discharge unit). FIG. FIG. 6 is a rear view of the vicinity of the opening 31 in a state where the portion is closed.

  As shown in FIG. 1, the scraper conveyor 10 has a bottom side of a tube body 12 extending in the left-right direction in FIG. A supply unit 18 for supplying the object to be conveyed 14 into the groove conveying path 16 is provided on one end side, and the object to be conveyed is discharged from the groove conveying path 16 to the other end in the longitudinal direction of the tube body 12. One discharge unit 20 is provided.

  A plurality of scrapers 22 are inserted into the concave groove conveying path 16 at regular intervals, and the scraper 22 is fed through the concave groove conveying path 16 by an endless chain 24 that circulates in the tube body 12. It progresses from 18 to the 1st discharge part 20 direction, and the to-be-conveyed object 14 in the ditch | groove conveyance path 16 is conveyed in the same direction. The endless chain 24 is driven in the direction of arrow 100 by a drive sprocket 26.

  In the first discharge unit 20, the transported object 14 attached to the transport surface 22 a of the scraper 22 is scraped off by the arm 28 having the above-described conventional configuration, and the discharge efficiency of the transported object 14 in the first discharge unit 20. Has been increased.

  In addition, a second discharge unit 30 (discharge unit) is provided in the middle of the concave groove transfer path 16 on the upstream side of the first discharge unit 20 in the transfer direction of the object to be transferred 14. Has an opening 31 provided at the bottom of the concave groove conveying path 16 for discharging the article 14 in the concave groove conveying path 16 by natural fall.

  A detailed configuration of the scraper conveyor 10 having the overall structure as described above will be described below.

  As shown in FIG. 5, the tubular body 12 has a cross-sectional shape in which a bottom portion of a substantially rectangular housing in a cross-sectional view is protruded outward in a substantially U shape, and the cross-sectional shape includes a top surface 12 a and a side wall. 12b, a bottom surface 12c, a side wall 12d and a protruding bottom 12e. Among these, the concave groove conveyance path 16 is constituted by the concave groove formed of the side wall 12d and the protruding bottom portion 12e.

  The scraper 22 has a substantially rectangular conveyance surface 22a (see FIG. 6) corresponding to the cross-sectional shape of the groove conveyance path 16, and conveys the groove in a state where the tip 22b is close to or slidably contacts the protruding bottom 12e. The ear portions 22d that are inserted into the passage 16 and protrude on both sides in the width direction of the tubular body 12 on the base end 22c side are respectively supported by two endless chains 24 that respectively proceed directly above the bottom portion 12c. A scraper 22 is bridged between two endless chains 24 and supported.

  As shown in FIG. 1, the opening 31 is provided on the upstream side in the transport direction of the article to be transported 14 relative to the first discharge portion 20, and as shown in FIGS. 2 to 4, both side walls 12 d and 12 d and the protruding bottom 12 e. Is a region cut out over a certain section in the transport direction. Therefore, when the scraper 22 moves in the conveying direction through the opening 31, as shown in FIGS. 3 and 4, the portion from the base end 22c to the tip 22b of the scraper 22 is directed toward the projecting bottom 12e and both side walls 12d. It will be exposed. As will be described later, a blade 34 attached to the tip of the rotating arm 32 enters the concave groove conveyance path 16 through the opening 31 and comes into contact with the conveyance surface 22a of the scraper 22 and adheres to the conveyance surface 22a. The to-be-conveyed object 14 will be removed.

  Next, the configuration of the rotating arm 32 will be described. As shown in FIG. 2, outer walls 36, 36 arranged substantially parallel to both side walls 12 b, 12 b are respectively provided on the outer side in the width direction of the tubular body 12 slightly downstream of the opening 31 in the transport direction. A pair of shaft portions 38, 38 that extend in the width direction of the pipe line 12 (that is, in the width direction of the groove conveying path 16) with respect to the side wall 12 b and the outer wall 36 are also received by the pair of bearings 39, 39. A pair of rotating arms 32 and 32 that extend radially from the shaft portions 38 and 38 and are rotatable within a predetermined range are respectively supported by the shaft portions 38 and 38. ing.

  As shown in FIG. 3, the rotating arm 32 gently curves in the clockwise direction in a plan view while extending from the shaft portion 38 in a substantially square shape in a plan view with the shaft portion 38 as a center of rotation. It comprises a curved arm portion 32a having a shape and a flat plate portion 32b extending in the opposite direction from the shaft portion 38 to the curved arm portion 32a so as to have an angle of about 120 degrees with respect to the curved arm portion 32a. The angle formed by the curved arm portion 32a and the flat plate portion 32b may be any angle.

  On the lower surface of the flat plate portion 40, as shown in FIG. 3, between the side wall 12b and the outer wall 36 (see FIG. 2), in the height direction of the conduit 12 (that is, in the depth direction of the groove conveying path 16). One end of the extending coil spring 42 (biasing means) is attached, and the other end of the coil spring 42 is fixed to a spring stopper 44 supported on the inner surface 36 a of the outer wall 36. Accordingly, the flat plate portion 32 b is pulled by the coil spring 42 and is urged downward in the height direction of the conduit 12, and the curved arm portion 32 a is urged upward in the height direction of the conduit 12.

  Further, not only the coil spring 42 but also a rod-like stopper 46 that extends in the same direction as the stretching direction of the coil spring 42 is screwed to the spring stopper 44 as shown in FIGS. When the tip 46a of the stopper 46 abuts on the flat plate portion 32b, the rotation about the shaft portion 38 of the rotating arm 32 according to the urging force of the coil spring 42 is stopped. In the present embodiment, the contact state of the flat plate portion 32 and the stopper 46 is adjusted so that the distal end of the curved arm portion 32a (the turning arm 32) is normally positioned at the base end height of the scraper 22. . This height can be adjusted by adjusting the screwing depth of the stopper 46 into the spring stopper 44.

  There is no particular means for suppressing the rotation of the rotating arm 32 in the direction against the biasing direction of the coil spring 42, and the distal end of the curved arm portion 32a extends beyond the distal end of the scraper 22 beyond the distal end of the coil spring 42. It can be turned to the limit of elongation.

  As shown in FIG. 2, a rod-shaped blade 34 having a substantially rectangular cross section is installed between the distal ends of the curved arm portions 32a and 32a. Therefore, the blade 34 has a length that exceeds the length of the scraper 22 in the width direction.

  Further, as shown in FIG. 4, the curved arm portion 32 a (rotating arm 32) located on the back side of the scraper conveyor 10 has a substantially circular cross section that protrudes outward in the width direction of the pipe 12. A roller 32d is provided.

  Next, the configuration of the rotation bar 50 that restricts the rotation of the rotation arm 32 will be described.

  As shown in FIG. 2, the endless chains 24, 24 that circulate and drive in the tube body 12 engage with the sprockets 52, 52 at the substantially central position in the conveyance direction of the article 14 to be conveyed in the opening 31. Is rotated counterclockwise in front view (see FIG. 3 as viewed in the direction of arrow 200 in FIG. 2) by driving the endless chains 24, 24. The sprockets 52 and 52 are fixed to a single rod-like shaft body 54 pivotally supported on the side walls 12b and 12b. The shaft body 54 penetrates the side wall 12b on the front side and protrudes outward from the tube body 12, and a shaft-like rotation bar 50 extending in the radial direction of the shaft body 52 outside the tube body 12 is pivoted. I support. Each pivot bar 50 has a distal end that protrudes inward in the width direction of the tubular body 12, and constitutes a restraining protrusion 50 a that can abut against the curved arm portion 32 a of the pivot arm 32 in a plan view and restrain its movement.

  As shown in FIGS. 4 and 6, a lid 56 for opening and closing the opening 31 is provided on the upstream side of the opening 31 in the transport direction. The lid portion 56 is a plate-like body having a substantially U-shaped cross section that follows the shape of the concave groove conveyance path 16, and further has a flange portion 56 a that is folded outward to face the bottom portion 12 c. ing. Further, the bottom portion 56 b of the lid portion 56 is provided with a grip portion 56 c for operating the lid portion 56.

  On the other hand, as shown in FIGS. 3 and 5, a plate member 58 is overlapped and fixed to the outer side wall 12 b on the upstream side and the downstream side in the transport direction of the opening 31, and the lower end of the plate member 58 is The roller 60 that protrudes further downward from the lower end of the side wall 12b and is positioned between the plate member 58 and the side wall 12d of the groove conveying path 16 is pivotally supported by the plate member 58. .

  As shown in FIG. 6, the cover portion 56 has its bottom portion 56b and flange portion 56a overlapped with the protruding bottom portion 12e of the concave groove conveying path 16 and the bottom portion 12c of the tube body 12, respectively, and the flange portion 56a is overlapped with the roller 60 and the bottom portion 12c. It is attached to the tubular body 12 by being held between.

  Further, a plate member 62 disposed substantially parallel to the side portion 56d and extending in the longitudinal direction of the lid portion 56 is connected to the side portion 56d by a support portion 56e on one side portion 56d of the lid portion 56. Has been.

The plate member 62, as shown in FIG. 4, has a sloping edge 62a which is inclined so as to protrude into the downstream side in the conveying direction as the sides in the conveyance direction downstream side is shifted from the height direction lower side to the upper The roller 32d is positioned on the longitudinal extension line of the plate member 62.

  The scraping of the article 14 to be conveyed from the scraper 22 in the second discharge unit 30 (discharge unit) by the scraper conveyor 10 having the above configuration will be described with reference to FIG.

  As shown in FIG. 3, first, in the normal state, that is, in a state where the rotation according to the urging force of the coil spring 42 (the urging means) of the rotating arm 32 is stopped by the stopper 46, the bending in the rotating arm 32. The distal end of the arm portion 32 a is at the same height as the base end of the scraper 22. Therefore, the blade 34 installed between the distal ends of the rotating arms 32 is opposed to the conveying surface 22a of the scraper 22 at the height position where the base end thereof is located over the entire length of the scraper 22 in the width direction.

  In this state, as shown in FIG. 7A, the base end of the scraper 22 that is moved by driving the endless chain 24 abuts against the blade 34, while the rotation bar 50 is driven by the arrow 400 by driving the endless chain 24. Rotate in the direction. The scraper 22 continues to move even after coming into contact with the blade 34 and tries to push the blade 34 in the transport direction.

  Then, the rotation arm 32 is pushed by the scraper 22 and rotates in the direction of the arrow 500 (counterclockwise in front view) against the urging force of the coil spring 42. At this time, since the tip of the rotating arm 32 moves from the base end of the scraper 22 in the height direction of the tip, the blade 34 moves in the tip direction while sliding on the conveying surface 22a of the scraper 22 (FIG. 7 (b). Then, when the blade 34 tries to separate beyond the tip of the scraper 22, the stop projection 50a at the tip of the rotating bar 50 comes into contact with the tip of the curved arm portion 32a, and the curved arm portion 32a in the urging direction. The movement is stopped (see FIG. 7B).

  In a state where the restraining projection 50a abuts on the tip of the curved arm portion 32a and restrains the rotation of the curved arm portion 32a, the scraper 22 further passes on the blade 34 and the space between the curved arm portions 32a and further in the transport direction. On the other hand, the rotation bar 50 further rotates in the direction of the arrow 400, and the rotation of the stop protrusion 50a as the tip continues to contact with the curved side surface of the curved arm portion 32a (see FIG. 7C). (D) See).

  Next, as shown in FIG. 7E, when the rotation bar 50 continues to rotate in the direction of the arrow 400, when the rotation bar 50 is rotated by a certain amount, the curved arm portion is gently bent along with the rotation of the rotation bar 50. The tip of 32a begins to move in the direction of arrow 550 (the urging direction), and as shown in FIG. 7 (f), the pivot bar 50 moves away from the curved arm portion 32a by further turning in the direction of arrow 400. The distal end of the rotating arm 32 returns to the height of the base end of the scraper 22, and the blade 34 returns to a position facing the conveying surface 22 a of the scraper 22.

  Therefore, according to the scraper conveyor 10 according to the present invention, in the second discharge unit 30 (discharge unit) located in the middle of the groove conveyance path 16, among the objects to be conveyed 14 that are conveyed in the groove conveyance path 16. After the material adhering to the scraper 22 is scraped off by the blade 34 attached to the tip of the rotating arm 32, the blade 34 slides and moves beyond the tip of the scraper 22, so that the scraper 22 moves in the transport direction. It is not obstructed by the blade 34.

  Further, after the scraper 22 moves beyond the blade 34 in the transport direction, the tip of the rotating arm 32 returns to the base end direction of the scraper 22 according to the biasing force of the coil spring 42, so that the blade 34 adheres to the next scraper 22. Preparation for scraping off the transported object 14 is made.

  Therefore, in the second discharge unit 30 (discharge unit) in the middle of the conveyance path of the scraper conveyor 10, it is possible to install a scraping mechanism for the object 14 to be conveyed adhered to the scraper 22, and the discharge in the middle of the conveyance path. It is possible to accurately scrape off the transported object 14 attached to the scraper 22 in the section.

  Furthermore, according to the scraper conveyor 10 according to the present embodiment, the blades 34 are located at opposite positions on both sides in the width direction of the groove conveying path 16 (that is, between the side walls 12b, 12b and the outer walls 36, 36). 38 is received between the bearings 39 and is supported between the ends of a pair of rotating arms 32 that are pivotally supported and rotated outside the groove conveying path 16. Therefore, a configuration for avoiding the scraping mechanism of the transported object 14 attached to the scraper 22 from the track of the scraper 22 is achieved with a simple configuration.

  In addition, according to the scraper conveyor 10 according to the present embodiment, the blade 34 scrapes off the conveyed object 14 attached to the scraper 22 and passes over the tip of the scraper 22, and then the rotating arm is applied by the biasing force of the coil spring 42. The rotation bar 50 restricts the movement of the tip 32 to the height of the base end of the scraper 22. In other words, when the height of the tip of the scraper 22 is exceeded, the tip of the rotating arm 32 is restrained, and the tip of the rotating arm 32 is gradually raised to the height of the base end of the scraper 22 by further turning operation of the turning bar 50. It will return.

  Accordingly, it is possible to prevent the impact and noise caused by the collision between the stopper 46 and the flat plate portion 32b when the distal end of the rotating arm 32 returns to the height of the 22 base end of the scraper according to only the urging force of the coil spring 42. Improvement in durability of the arm 32 and the stopper 46 can be expected.

  According to the scraper conveyor 10 according to the present embodiment, the above-described effects can be obtained. On the other hand, when the second discharge unit 30 (discharge unit) is not used, that is, the opening 31 is closed. It is also assumed that the scraper conveyor 10 is operated in such a manner that the discharge is performed only from the first discharge unit 20 as a state.

  In that case, if the scraping mechanism 14 to be transported remains in the concave groove transport path 16, there is a possibility that the collision with the scraper 22 cannot be avoided. Therefore, the operation of the opening / closing mechanism of the second discharge unit 30 (discharge unit) for avoiding such a state will be described below.

  In the scraper conveyor 10 according to the present invention, when the first discharge unit 20 and the second discharge unit 30 are used, the opening 31 of the second discharge unit 30 is in an open state as shown in FIG. The transported object 14 can be discharged from both discharge sections.

  In this state, in order to close the second discharge portion 30, the grip portion 56c of the lid portion 56 is first gripped, and the lid portion 56 is slid in the direction of the arrow 600. Then, at the same time as the cover part 56 moves on the roller 60, the inclined side 62 a of the plate member 62 connected to the cover part 56 comes into contact with the roller 32 d protruding from the tip of the rotating arm 32. When the roller 32d comes into contact with the inclined side 62a, the tip of the rotating arm 32 moves downward by a downward movement according to the inclination of the inclined side 62a of the roller 32d. Then, as shown in FIG. 6, when the lid portion 56 is further moved in the direction of the arrow 600, the opening portion 31 is closed by the lid portion 56, and the roller 32d is positioned below the lower side of the plate member 62. The blade 34 installed between the tip of the moving arm 32 and the tip is maintained at a position below the bottom 56 b of the lid 56.

Therefore, according to the scraper conveyor 10 according to the present embodiment, when the second discharge unit 30 is in the open state, the second discharge unit 30 can be simply slid in the arrow 600 direction ( downstream in the transport direction). The opening 31 of the (discharge portion) is closed, and at the same time, the tip of the rotating arm 32 and the blade 34 can be moved from the inside of the groove conveying path 16 to the outside of the groove conveying path 16 through the opening 31. . That is, by changing the use mode of only the first discharge unit 20 with the opening 31 of the second discharge unit 30 in the closed state, simultaneously moving the article 14 scraping mechanism to the outside of the groove transfer path 16, Interference between the scraper 22 in the concave groove conveying path 16 and the object 14 scraping mechanism can be reliably avoided.

  In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the meaning of invention. For example, in the above-described embodiment, the first discharge unit 20 and the second discharge unit 30 are provided. However, in the present invention, it is sufficient if there is a discharge unit in the middle of the concave groove conveyance path 16. It is good also as a structure which has only 30, and it is good also as a structure which provides a some discharge part in the middle position of the ditch | groove conveyance path 16. FIG.

  Furthermore, the scraper conveyor 10 may not be provided with the rotating bar 50. Even in this case, it is possible to scrape off the transported object 14 attached to the scraper 22 by the action of the rotating arm 32 and the blade 34 in the discharge portion provided in the middle of the concave groove transport path 16.

DESCRIPTION OF SYMBOLS 10 Scraper conveyor 16 Concave groove conveyance path 22 Scraper 22a Conveying surface 24 Endless chain 30 Second discharge part (discharge part)
31 Opening 32 Rotating Arm 32a Curved Arm (Rotating Arm)
32b Flat plate (rotating arm)
34 Blade 38 Shaft 39 Bearing 42 Coil spring (biasing means)
50 Rotating bar

Claims (3)

In the scraper conveyor having a discharge part in the midway position of the concave groove conveying path while pushing and conveying the object to be conveyed in the concave groove conveying path by a scraper continuously moved by driving the endless chain,
The discharge portion has an opening at the bottom of the concave groove conveyance path for discharging an object to be conveyed in the concave groove conveyance path by natural fall,
A rotating arm provided in the vicinity of the opening, and pivotally attached so that the tip end pivotally moves in a height range exceeding at least the base end to the tip end of the scraper;
A blade attached to the tip of the rotating arm and having a length over the entire length in the width direction of the conveying surface, which is a surface for pushing the conveyed object of the scraper;
An urging means for urging the distal end of the rotating arm in the proximal direction ;
A rotation bar that is provided in the vicinity of the opening and rotates in conjunction with the driving of the endless chain ;
When the scraper moves in the transport direction, the blade comes into contact with the entire length of the scraper in the width direction, and the scraper moves further on the transport surface of the scraper. It is designed to slide from its proximal end to beyond its distal end ,
The rotating bar has a length such that a tip contacts the rotating arm during the rotating operation,
The rotation timing of the rotation bar is
When the blade finishes sliding to the tip of the scraper, the tip of the rotating bar comes into contact with the rotating arm, and the tip of the rotating arm comes to the base of the scraper by the biasing force of the biasing means. After the movement of returning to the height of the end is restrained and the distal end of the rotating arm is allowed to move slowly back to the height of the base end of the scraper by further rotating operation, the distal end of the rotating bar is rotated. A scraper conveyor characterized by being separated from an arm . The shaft portion of the rotating arm is thus received in a pair of bearings provided in positions facing each other in the both widthwise outer side of the groove conveying path,
The pivot arms are respectively provided at positions on both outer sides in the width direction of the concave groove conveying path of the shaft portion,
The scraper conveyor according to claim 1, wherein the blade is provided between the ends of the pair of rotating arms. In the scraper conveyor having a discharge part in the midway position of the concave groove conveying path while pushing and conveying the object to be conveyed in the concave groove conveying path by a scraper continuously moved by driving the endless chain,
The discharge portion has an opening at the bottom of the concave groove conveyance path for discharging an object to be conveyed in the concave groove conveyance path by natural fall,
A rotating arm provided in the vicinity of the opening, and pivotally attached so that the tip end pivotally moves in a height range exceeding at least the base end to the tip end of the scraper;
A blade attached to the tip of the rotating arm and having a length over the entire length in the width direction of the conveying surface, which is a surface for pushing the conveyed object of the scraper;
An urging means for urging the distal end of the rotating arm in the proximal direction ;
A lid that can be opened and closed by sliding the opening between an open position on the upstream side in the transport direction of the transported object and a closed position on the downstream side in the transport direction;
A roller provided at a tip of the rotating arm and projecting outward in the width direction of the groove conveying path;
A plate member connected to the lid portion via a support portion and extending in the transport direction as a longitudinal direction;
When the scraper moves in the transport direction, the blade comes into contact with the entire length of the scraper in the width direction, and the scraper moves further on the transport surface of the scraper. It is designed to slide from the base end beyond the tip ,
The plate member is inclined from the lower side in the height direction of the inclined side and the inclined side on the downstream side in the conveying direction, and is inclined so as to protrude toward the downstream side in the conveying direction as it moves from the lower side in the height direction to the upper side. It has a lower side that extends upstream in the transport direction,
The roller is located on a longitudinal extension of the plate member; and
The roller is arranged such that when the opening portion is closed by sliding movement from the open position on the upstream side in the transport direction to the closed position on the downstream side in the transport direction, the roller is moved to the plate member. The lower end of the rotating arm to move downward according to the inclination of the inclined side to move the tip of the rotating arm downward, and further below the lower side of the plate member, A scraper conveyor characterized in that the blade attached to the tip of the rotating arm is maintained at a position below the lid portion in the closed state .

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