JP3163131U - Screw type vertical transfer device - Google Patents

Abstract

An object of the present invention is to reduce the external dimension and reduce the installation occupation area, reduce the number of parts, improve the reliability of the apparatus, simplify the structure, and reduce the manufacturing cost. Provided is a screw type vertical transport device capable of SOLUTION: Each of a pair of spiral blade portions 25 and 29 whose spiral winding directions are opposite to each other around each of a pair of axes arranged in the vertical direction, and rotates in the opposite directions in conjunction with each other. And a guide member 28 having a surface substantially parallel to a surface including the axis of each of the pair of screws 22 and 24 or a portion substantially parallel to the axis. [Selection] Figure 1

Description

  The present invention relates to a screw-type vertical conveyance device used for conveying a conveyed product in the vertical direction.

  Conventionally, belt conveyors, roller conveyors, chain conveyors, and the like have been widely used for horizontal conveyance of conveyed items such as box-shaped containers in factories and the like. These belt conveyors, roller conveyors, or chain conveyors have also been used for transporting conveyed products in the vertical direction.

  That is, there are belt conveyors, roller conveyors, or bucket-type chain conveyors in which buckets are attached to chains, in which the conveying direction of the conveyed objects in the conveyor for conveying conveyed objects is inclined to the horizontal direction. By being used, the conveyed product can be conveyed in the vertical direction.

  However, belt conveyors and roller conveyors that are inclined with respect to the horizontal direction to incline the conveying direction make it difficult to convey the conveyed product if the inclination angle is too large. There was a need. On the other hand, if the inclination angle is reduced, there is a problem that the length of the conveyor necessary for conveying the conveyed product in the vertical direction becomes long and the outer dimension in the horizontal direction becomes remarkably large.

  In addition, a bucket-type chain conveyor with a bucket attached to the chain is structured so that the bucket moves up and down along the locus of the chain as a unit with the chain. There was also a problem that the external dimensions of the were also increased by the bucket.

  In addition, the conventional belt conveyor, roller conveyor, or chain conveyor described above has a large number of parts, so it is not only prone to anomalies, but also increases the frequency of maintenance, so that its reliability can be improved. There was a problem that I could not.

  In addition, if the above-described conventional belt conveyor, roller conveyor, or chain conveyor is used to convey the conveyed product in the vertical direction, the structure becomes complicated, and the manufacturing cost of the conveying apparatus becomes high. It was.

  Therefore, in view of the above-mentioned problems, the present invention can reduce the external dimension to reduce the installation occupation area, reduce the number of parts, improve the reliability of the apparatus, and simplify the structure. Thus, it is an object of the present invention to provide a screw type vertical conveying device that can reduce the manufacturing cost.

In order to solve the above problems, the screw type vertical transport device according to the present invention is:
A pair of screws each having a pair of spiral blades whose spiral winding directions are opposite to each other around each of a pair of axial lines arranged in the vertical direction and capable of rotating in an opposite direction in conjunction with each other; ,
And a guide member having a surface substantially parallel to a surface including the axis of each of the pair of screws or a portion substantially parallel to the axis.

In addition, the screw type vertical conveying device according to the present invention is
Each of the pair of gears having the same number of teeth is attached to each of the pair of screws,
When the pair of gears mesh with each other, the pair of screws can be interlocked and rotated counterclockwise.

In addition, the screw type vertical conveying device according to the present invention is
Each of the pair of screws is characterized in that an interval in the vertical direction of the blade portion is formed to be larger than the height of the conveyed product.

According to such a screw type up-and-down conveyance device of the present invention,
A pair of screws each having a pair of spiral blades whose spiral winding directions are opposite to each other around each of a pair of axial lines arranged in the vertical direction and capable of rotating in an opposite direction in conjunction with each other; ,
By providing a guide member having a surface substantially parallel to the surface including the axis of each of the pair of screws or a portion substantially parallel to the axis.
The external dimension can be reduced to reduce the installation occupation area, and the number of parts can be reduced to improve the reliability of the apparatus, and the structure can be simplified and the manufacturing cost can be reduced.

It is a front view of screw type up-and-down direction conveying device 20 concerning a 1st embodiment of the present invention. It is a side view which shows together the screw type up-down direction conveying apparatus 20 shown in FIG. 1, and the roller conveyors 64 and 66. FIG. It is AA arrow sectional drawing of the screw type up-down direction conveying apparatus 20 shown in FIG. It is a figure which shows the screw 22 of the screw type up-down direction conveying apparatus 20 shown in FIG. 1, Fig.4 (a) is the top view, FIG.4 (b) is the front view. It is a figure which shows the screw 24 of the screw type up-down direction conveying apparatus 20 shown in FIG. 1, Fig.5 (a) is the top view, FIG.5 (b) is the front view. It is a longitudinal cross-sectional view of the blade | wing fixing | fixed part 23 and 27 of the screws 22 and 24 shown to FIG. FIG. 2 is a schematic top view of a conveyed product 21 that is referred to for explaining the operation of the screw-type vertical conveyance device 20 shown in FIG. 1 to convey the conveyed product 21 from below to above. FIG. 3 is a partial side view of the conveyed product 21 that is referred to for explaining the operation of the screw type vertical conveyance device 20 shown in FIG. 1 to convey the conveyed product 21 from below to above. It is a side view which shows together the screw type up-down direction conveying apparatus 80 which concerns on the 2nd Embodiment of this invention, and the roller conveyors 64 and 66. FIG. It is the upper surface schematic of the conveyed product 21 referred in order to demonstrate the operation | movement in which the screw type up-down direction conveying apparatus 80 shown in FIG. 9 conveys the conveyed product 21 from upper direction to the downward direction. FIG. 10 is a partial side view of the conveyed product 21 that is referred to for explaining the operation of the screw-type vertical conveyance device 80 illustrated in FIG. 9 to convey the conveyed product 21 from above to below.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a screw type vertical transport device according to the present invention will be specifically described below with reference to the drawings.

  FIG. 1 to FIG. 8 are diagrams which are referred to for explaining the screw-type vertical conveyance device 20 according to the first embodiment of the present invention.

  As shown in FIG. 1, the screw type vertical transport device 20 according to the present embodiment has a pair of blade fixing portions 23, 25 both arranged in the vertical direction and in parallel with each other, and interlocked in opposite directions. A pair of rotating screws 22 and 24 and a guide member 28 that is attached to a case body 26 that surrounds the four sides of the screws 22 and 24 and has a guide surface 28a that is substantially parallel to a surface including the axis of each of the screws 22 and 24. Has been.

  As shown in FIGS. 1 and 2, the screw type vertical conveyance device 20 is used for conveying a conveyance product 21 in the vertical direction. The transported object 21 is a substantially rectangular parallelepiped having a depth dimension L, a width dimension W, and a height dimension H, and has a bottom surface 21a and is formed in a box shape having an open upper end.

  The screw 22 of the screw type vertical conveying device 20 is made of metal, and as shown in FIG. 4 (b), the blade fixing portion 23 formed in a columnar shape is a long plate having a spiral shape and a width. The side portion of the blade portion 25 on the blade fixing portion 23 side is wound around the outer peripheral surface of the blade fixing portion 23 and is integrally fixed by welding, and the blade portion 25 has a width that protrudes radially outward of the blade fixing portion 23. It is formed to have.

  As shown in FIG. 6, the blade fixing portion 23 of the screw 22 includes a pair of upper and lower shafts having a single shaft core member 30 extending in the axial direction and fitting holes 34 a and 36 a that fit into the shaft core member 30. The disc members 34 and 36 and the pair of disc members 34 and 36 are assembled so that the upper and lower openings of the shaft hole 32a are closed, and the cylindrical member 32 constituting the large-diameter portion 23a of the blade fixing portion 23. It is configured.

  The shaft core member 30 and the cylindrical member 32 are fixed to the disk members 34 and 36 by welding, so that the shaft core member 30 and the cylindrical member 32 and the disk members 34 and 36 are integrally configured. It has come to be.

  In this way, the large-diameter portion 23 a of the blade fixing portion 23 of the screw 22 is formed by an integral configuration of the disk members 34 and 36 that are fixed to the shaft member 30 by welding and the cylindrical member 32, so that the blade fixing portion 23 is formed. The large-diameter portion 23a can be reduced in weight as compared with a case where the large-diameter portion 23a is formed by a solid structure.

  Furthermore, since the weight of the large-diameter portion 23a of the blade fixing portion 23 of the screw 22 can be reduced, the burden on the drive unit and the rotation mechanism unit that rotates the blade fixing portion 23 can be reduced. The durability of the vertical transport device 20 can be improved and the reliability thereof can be improved.

  As shown in FIG. 4B, the blade portion 25 of the screw 22 moves to the large-diameter portion 23a of the blade fixing portion 23 in the clockwise direction as viewed from above as viewed from above (in FIG. 4A). It is integrally formed in a spiral shape while being wound in the direction of the arrow.

  The spiral blade portion 25 has a constant width dimension that protrudes radially outward from the large diameter portion 23 a of the blade fixing portion 23, and has a width dimension that is about half of the width dimension W of the conveyed product 21. . For this reason, as shown to Fig.4 (a), the blade | wing part 25 looks circular when it sees from upper direction.

  As shown in FIG. 4B, the spiral blade portion 25 has a top surface 25a having a constant inclination angle from the horizontal direction corresponding to the tangential direction, and the blades adjacent to each other in the vertical direction. The pitch P, which is the interval between the portions 25, is such that when the transported object 21 is placed on the upper surface 25a of the blade part 25, the upper end of the transported object 21 does not contact the lower surface of the blade part 25 above it. It is formed larger than the height dimension H (see FIG. 2) of the conveyed product 21.

  As shown in FIGS. 1 and 5B, the screw 24 of the screw type vertical conveying device 20 has a spiral winding direction of a blade portion 29 wound spirally around the blade fixing portion 27, and the blade of the screw 22. The configuration is the same as that of the screw 22 except that the direction of spiral winding of the blade portion 25 wound around the fixing portion 23 is opposite.

  That is, the screw 24 is made of metal, and as shown in FIG. 5 (b), the blade fixing portion 27 of the long plate-like blade portion 29 having a spiral shape and width is fixed to the blade fixing portion 27 formed in a columnar shape. The side portion on the side of the portion 27 is wound around the outer peripheral surface of the blade fixing portion 27 and is integrally fixed by welding, and the blade portion 29 is formed to have a width that protrudes radially outward of the blade fixing portion 27. .

  As shown in FIG. 6, the blade fixing portion 27 of the screw 24 includes a pair of upper and lower shafts having a single shaft core member 30 extending in the axial direction and fitting holes 34 a and 36 a that are fitted into the shaft core member 30. The disc members 34 and 36 and the pair of disc members 34 and 36 are assembled so that the upper and lower openings of the shaft hole 32a are closed, and the cylindrical member 32 constituting the large-diameter portion 27a of the blade fixing portion 27. It is configured.

  The shaft core member 30 and the cylindrical member 32 are fixed to the disk members 34 and 36 by welding, so that the shaft core member 30 and the cylindrical member 32 and the disk members 34 and 36 are integrally configured. It has come to be.

  In this way, the large-diameter portion 27 a of the blade fixing portion 27 of the screw 24 is formed by an integral configuration of the disk members 34 and 36 that are welded and fixed to the shaft core member 30 and the cylindrical member 32. The large-diameter portion 27a can be reduced in weight as compared with a case where the large-diameter portion 27a is formed by a solid structure.

  Furthermore, since the weight of the large-diameter portion 27a of the blade fixing portion 27 of the screw 24 can be reduced, the burden on the drive unit and the rotation mechanism unit that rotates the blade fixing portion 27 can be reduced. The durability of the vertical transport device 20 can be improved and the reliability thereof can be improved.

  As shown in FIG. 5 (b), the blade portion 29 of the screw 24 moves toward the large-diameter portion 27a of the blade fixing portion 27 in the counterclockwise direction as viewed from above (see FIG. 5 (a)). It is integrally formed in a spiral shape while being wound in the direction of the arrow in the middle.

  Further, the blade portion 29 of the screw 24 protrudes radially outward from the large-diameter portion 27 a of the blade fixing portion 27, and the width dimension of the blade portion 29 of the screw 22 is outside the radius from the large-diameter portion 23 a of the blade fixing portion 23 of the blade portion 25 of the screw 22. It is the same as the width dimension protruding in the direction.

  The spiral blade portion 29 has a constant width dimension that protrudes radially outward from the large diameter portion 27 a of the blade fixing portion 27, and has a width dimension that is about half the width dimension W of the conveyed product 21. For this reason, as shown in FIG. 5 (a), the blade portion 29 looks circular when viewed from above.

  As shown in FIG. 5B, the spiral blade portion 29 has an upper surface 29a having a constant inclination angle from the horizontal direction corresponding to the tangential direction, and the blades adjacent to each other in the vertical direction. The pitch P, which is the interval between the portions 29, is such that when the conveyed product 21 is placed on the upper surface 29a of the blade portion 29, the upper end of the conveyed product 21 does not contact the lower surface of the blade portion 29 above it. It is formed larger than the height dimension H (see FIG. 2) of the conveyed product 21. In addition, the pitch P of the blade portion 29 of the screw 24 is the same as the pitch P of the blade portion 25 of the screw 22.

  Next, as shown in FIGS. 1 to 3, the case body 26 of the screw-type vertical conveyance device 20 includes a lower plate 42, a frame body 44, an upper plate 46, and a frame 38.

  The pedestal 38 of the case body 26 is formed by combining metal angles 40 (equilateral angle irons) vertically and horizontally, and fixing the contact portions with each other by welding, so that the outer shape is formed into a substantially rectangular parallelepiped frame shape. Has been.

  The lower plate 42 of the case body 26 is formed in a substantially rectangular plate shape, and is horizontally placed on the gantry 38 and fixed to the gantry 38. In addition, the lower plate 42 is formed with two through holes penetrating in the thickness direction at a distance from each other.

  The frame body 44 of the case body 26 is formed in a substantially rectangular parallelepiped frame shape by combining metal angles 40 vertically and horizontally and fixing the portions that contact each other by welding. The frame body 44 is placed on the lower plate 42 and fixed to the lower plate 42.

  The upper plate 46 of the case body 26 is formed in a substantially rectangular plate shape, and is placed horizontally on the frame body 44 and fixed to the frame body 44. For this reason, the upper surface 42a of the lower plate 42 and the lower surface 46b of the upper plate 46 are arranged substantially parallel to face each other.

  The upper plate 46 is formed with two through holes penetrating in the thickness direction at a distance from each other and formed at positions corresponding to the two through holes of the lower plate 42.

  The upper end portion of the shaft core member 30 in the axial portion of the screw 22 and the upper end portion of the shaft core member 30 in the axial portion of the screw 24 pass through two through holes formed in the upper plate 46 of the case body 26, The upper plate 46 is rotatably supported by a bearing 48 attached in the vicinity of the through hole of the upper surface 46a.

  The lower end portion of the shaft core member 30 of the screw 22 and the lower end portion of the shaft core member 30 of the screw 24 pass through two through holes formed in the lower plate 42 of the case body 26, and the lower surface 42 b of the lower plate 42. It is rotatably supported by a bearing 50 attached in the vicinity of the through hole.

  Therefore, the screws 22 and 24 are arranged inside the frame body 44 of the case body 26 and are rotatably supported by bearings 48 and 50 attached to the upper plate 46 and the lower plate 42 of the case body 26. . At this time, the screws 22 and 24 are arranged such that their axes are parallel to each other.

  An upper frame 45 and a lower frame 47 are provided above and below the frame body 44, respectively, and these are configured in a quadrilateral frame shape when viewed from above. A transparent plastic wall plate 49 is attached between the upper frame 45 and the lower frame 47 and between a pair of adjacent angles 40. For this reason, the screws 22 and 24 are covered with the transparent wall plate 49 of the case body 26 on the four sides thereof.

  As shown in FIG. 2, a roller conveyor 66 on the transport side of the transport object is provided on the opposite side of the roller conveyor 64 on the transport object supply side disposed below the frame body 44 and in the vicinity of the upper frame 45. Is arranged. A guide member 28 is provided inside the wall plate 49 on the opposite side of the frame body 44 from the roller conveyor 64.

  In addition, an opening hole (not shown) larger than the outer dimension of the conveyed product 21 is formed in the vicinity of the roller conveyor 64 on the wall plate 49 on the roller conveyor 64 side, and the conveyed product 21 passes through the opening hole to form a frame. It can be supplied into the body 44.

  As shown in FIGS. 1 and 2, the guide member 28 is formed in a flat plate shape, and the guide surface 28 a on the inner side thereof is disposed so as to be substantially parallel to the surface including the two axes of the screws 22 and 24. ing.

  As shown in FIG. 3, the lower end portion of the shaft core member 30 of the blade fixing portion 23 of the screw 22 is connected to the shaft hole of the gear 52 through a key (not shown) so as not to be relatively rotatable. The lower end portion of the shaft core member 30 of the blade fixing portion 27 is connected to the shaft hole of the gear 54 through a key (not shown) so as not to be relatively rotatable.

  The gears 52 and 54 have the same number of teeth, and are driven by the drive motor 62 as shown in FIG. 3 to rotate the shaft core member 30 of the blade fixing portion 23 of the screw 22. The gear 52 and the gear 54 mesh with each other.

  For this reason, the gears 52 and 54 are interlocked with each other when their teeth mesh with each other. When the gear 52 is rotated, the gear 54 rotates in the opposite direction at the same speed. Accordingly, the screws 22 and 24 are also interlocked with each other, and the screws 22 and 24 are rotated in the opposite directions at the same speed.

  The screws 22 and 24 are rotated in a state in which the heights of the upper surfaces 25a and 29a thereof are substantially coincided with each other at positions where the spiral blade portions 25 and 29 approach each other.

  As shown in FIG. 3, a pulley 56 is attached to the lower side of the gear 52 fixed to the lower end portion of the shaft core member 30 of the blade fixing portion 23 (the front side of the gear 52 in the drawing). A belt 60 is wound around the outer periphery of the belt.

  The belt 60 is also wound around the outer periphery of a pulley 58 having an axis disposed parallel to the axis of the shaft core member 30 of the blade fixing portion 23 to which the pulley 56 is attached and spaced apart from the axis. ing.

  The pulley 58 is relatively rotated at the center of rotation through a drive shaft 62a having an axis parallel to the shaft core member 30 of the screws 22 and 24 and rotated by a drive motor 62 and a key (not shown). Linked impossible.

  For this reason, when the rotation of the drive shaft 62a of the drive motor 62 is driven, the rotation of the drive shaft 62a of the drive motor 62 is transmitted to the gear 52 via the pulley 58, the belt 60, and the pulley 56, and the gear 52 and the gear 54 are connected. By engaging and interlocking, the screws 22 and 24 can be rotated in opposite directions.

  Next, the operation of the screw type vertical transport device 20 according to the first embodiment of the present invention will be described.

  As shown in FIG. 2, the box-shaped conveyed product 21 is conveyed by the roller conveyor 64 which supplies it to the screw type up-and-down conveying device 20, and is continuously arranged in the conveying direction, and the screws 22, And it is conveyed below the frame 44.

  Then, the end of the lever 68 that moves up and down driven by the expansion and contraction movement of the expansion and contraction rod 70a of the cylinder 70 is synchronized so as to be engaged with or disengaged from the lower right corner in FIG. The articles 21 can be supplied one by one through the opening hole (not shown) of the wall plate 49 of the frame body 44 of the screw type vertical conveying device 20 and below the frame body 44.

  As shown in FIGS. 7 and 8, the conveyed product 21 supplied into the frame body 44 of the screw type vertical conveying device 20 is at a position where the blade portions 25 and 29 below the screws 22 and 24 approach each other. It is placed on the upper surfaces 25a, 29a whose heights are substantially matched.

  At this time, between the blade fixing portions 23 and 27 of the screws 22 and 24 on which the conveyed product 21 is placed, the upper surfaces 25a and 29a of the blade portions 25 and 29 are shown in FIGS. 7 and the supply side in FIG. 7 has an inclined surface that becomes higher as shown in FIGS. 2 and 8, the conveyed product 21 placed on them has a blade portion as shown in FIG. 8. The bottom surfaces 21a are brought into contact with the top surfaces 25a and 29a of the 25 and 29, and are placed in an inclined state.

  When the conveyed product 21 is supplied into the frame 44 from the supply side (left side in FIGS. 2 and 8) due to the inclination of the blade portions 25 and 29 of the screws 22 and 24, a part of the conveyed product 21 (upper right in FIG. 8). Is in contact with the guide surface 28a of the guide member 28 attached to the inside of the wall plate 49 on the carry-out side of the frame 44.

  As shown in FIG. 3, when the drive shaft 62a of the drive motor 62 is driven and rotated, the screws 22 and 24 are opposite to each other via the pulley 58, the belt 60, the pulley 56, the shaft core member 30, and the gears 52 and 54. Rotate around. FIG. 3 is a view of the screw type vertical conveyance device 20 as viewed from below, while FIG. 7 is a view of the screw type vertical direction conveyance device 20 as viewed from above.

  As shown in FIG. 7, the blade fixing portion 23 of the screw 22 rotates in the clockwise direction when viewed from above, and the blade fixing portion 27 of the screw 24 is different from the blade fixing portion 23. Since the blades 25 and 29 of the screws 22 and 24 are rotated in the counterclockwise direction as viewed from above in the reverse direction, the rotation of the screws 22 and 24 from these spiral winding directions described above. The conveyed product 21 positioned between the blade fixing portions 23 and 27 can be moved upward in FIGS.

  Further, as shown in FIG. 8, the blade portions 25 and 29 of the screws 22 and 24 rotate so as to enter the lower side of the conveyed product 21 between the blade fixing portions 23 and 27 on which the conveyed product 21 is placed. To do. Therefore, a part of the conveyed product 21 comes into contact with and rubs against the guide surface 28a of the guide member 28, and the bottom surface 21a thereof is the upper surfaces 25a and 29a of the blade portions 25 and 29 of the screws 22 and 24. Ascend while scrubbing over.

  As shown in FIG. 8, the conveyed product 21 moves upward by a distance of the pitch P of the screws 22 and 24 every time the screws 22 and 24 rotate (360 ° rotation). On the upper surface 25a, 29a of the next lower blade portion 25, 29, another conveyed product 21 is newly supplied from a roller conveyor 64 for supplying it.

  When the screws 22 and 24 rotate a predetermined number of times, the conveyed product 21 on the blade portions 25 and 29 of the screws 22 and 24 rises above the upper frame 45 of the frame body 44, so that it contacts the guide surface 28 a of the guide member 28. As shown in FIG. 2, the inclined conveyed product 21 slides down from the upper surfaces 25 a and 29 a of the blade portions 25 and 29 of the screws 22 and 24, and the rollers that carry the conveyed product 21 out. It is carried out on the conveyor 66.

  For this reason, the screw type up-and-down conveyance device 20 can raise the height position of the conveyed product 21 at regular intervals, and can convey the conveyed product 21 from the lower side to the upper side of the frame body 44.

  According to the screw type vertical transport device 20 according to the first embodiment of the present invention, the outer dimension can be made smaller than that of the conventional transport device, so that the installation occupation area can be reduced. Since the number of parts is small, the reliability of the apparatus can be improved. Further, the screw type vertical conveying device 20 according to the first embodiment can have a simpler structure and a lower manufacturing cost than the conventional conveying device.

  FIGS. 9-11 is a figure referred in order to demonstrate the screw-type up-down direction conveying apparatus 80 which concerns on the 2nd Embodiment of this invention.

  In the screw type vertical conveyance device 20 according to the first embodiment, the height position of the conveyed product 21 is raised from a low position to a high position and conveyed. This second embodiment In the screw type vertical conveyance device 80 according to the embodiment, the height position of the conveyed product 21 is lowered from a high position to a low position and conveyed.

  For this reason, in the screw-type vertical conveyance device 20 according to the first embodiment, as shown in FIG. 2, the roller conveyor 64 that supplies the conveyance object 21 places the conveyance object 21 at a low position. Although the roller conveyor 66 carried out from the frame 44 is arranged at a high position, in the screw type vertical conveying device 80 according to the second embodiment, as shown in FIG. In addition, the roller conveyor 64 for supplying the conveyed product 21 is arranged at a high position, and the roller conveyor 66 for carrying the conveyed product 21 out of the frame 44 is arranged at a low position.

  Next, the operation of the screw type vertical transport device 80 according to the second embodiment of the present invention will be described.

  As shown in FIG. 9, the box-shaped conveyed product 21 is conveyed by a roller conveyor 64 that supplies the conveyed product 21 to the screw-type vertical conveying device 80 as described in the screw type vertical conveying device 20. Then, they are continuously conveyed above the screws 22 and 24 while being arranged in the conveying direction.

  Then, the end of the lever 68 that moves up and down driven by the expansion / contraction movement of the expansion / contraction rod 70a of the cylinder 70 is synchronized with the left and right corners in FIG. The articles 21 can be supplied one by one through the opening hole (not shown) of the wall plate 49 of the frame body 44 of the screw type vertical conveying device 80 one by one.

  As shown in FIGS. 10 and 11, the conveyed product 21 supplied into the frame body 44 of the screw type vertical conveying device 80 is at a position where the blade portions 25 and 29 above the screws 22 and 24 approach each other. It is placed on the upper surfaces 25a, 29a whose heights are substantially matched.

  At this time, between the blade fixing portions 23 and 27 of the screws 22 and 24 on which the conveyed product 21 is placed, the blade portion 25 is the same as the screw type vertical transport device 20 according to the first embodiment. , 29 are inclined surfaces such that the carry-out side in FIG. 10 is low as shown in FIGS. 9 and 11, and the supply side in FIG. 10 is high as shown in FIGS. As shown in FIG. 11, the conveyed product 21 placed thereon is placed in an inclined state with the bottom surface 21a in contact with the upper surfaces 25a, 29a of the blade portions 25, 29.

  When the conveyed product 21 is supplied into the frame 44 from the supply side (left side in FIGS. 9 and 11) due to the inclination of the blade portions 25 and 29 of the screws 22 and 24, a part of the conveyed product 21 (upper right in FIG. 11). Is in contact with the guide surface 28a of the guide member 28 attached to the inside of the wall plate 49 on the carry-out side of the frame 44.

  As shown in FIG. 3, when the drive shaft 62a of the drive motor 62 is driven and rotated, the screws 22 and 24 are opposite to each other via the pulley 58, the belt 60, the pulley 56, the shaft core member 30, and the gears 52 and 54. Rotate around. 3 is a view of the screw type vertical conveyance device 20 as viewed from below. FIG. 10 is a view of the screw type vertical direction conveyance device 80 as viewed from above.

  As shown in FIG. 10, the blade fixing portion 23 of the screw 22 rotates counterclockwise as viewed from above, and the blade fixing portion 27 of the screw 24 is connected to the blade fixing portion 23. Is rotated in the clockwise direction when viewed from above, so that the blade portions 25 and 29 of the screws 22 and 24 are rotated by the rotation of the screws 22 and 24 from the aforementioned spiral winding direction. The conveyed product 21 positioned between the blade fixing portions 23 and 27 can be moved downward in FIGS.

  As shown in FIG. 11, the blade portions 25 and 29 of the screws 22 and 24 are disposed between the blade fixing portions 23 and 27 on which the conveyed product 21 is placed, and the blade portions 22 b and 24 b that are in contact with the bottom surface 21 a of the conveyed product 21. It rotates so that the height position of the upper surfaces 25a and 29a of the top surface gradually decreases. For this reason, a part of the conveyed product 21 comes into contact with the guide surface 28a of the guide member 28 and rubs, and the bottom surface 21a rubs on the upper surfaces 25a and 29a of the blade portions 25 and 29 of the screws 22 and 24. Descend.

  As shown in FIG. 11, the conveyed product 21 moves downward by a distance of the pitch P of the screws 22 and 24 every time the screws 22 and 24 rotate (360 ° rotation). On the upper surfaces 25a, 29a of the next blade portions 25, 29 above, another conveyed product 21 is newly supplied from a roller conveyor 64 for supplying it.

  When the screws 22 and 24 rotate a predetermined number of times, the conveyed product 21 on the blade portions 25 and 29 of the screws 22 and 24 descends below the lower frame 47 of the frame body 44, so that it contacts the guide surface 28 a of the guide member 28. 9, the inclined conveyed product 21 slides down from the upper surfaces 25a and 29a of the blade portions 25 and 29 of the screws 22 and 24, as shown in FIG. It is carried out on the conveyor 66.

  For this reason, the screw type up-and-down conveyance device 80 can lower the height position of the conveyed product 21 at regular intervals, and can convey the conveyed product 21 from above the frame body 44 to below.

  Also with the screw type vertical conveying device 80 according to the second embodiment of the present invention, the outer dimension can be made smaller than that of the conventional conveying device, so that the installation occupation area can be reduced and the parts can be reduced. Since the number of points is small, the reliability of the apparatus can be improved. Further, the screw type vertical conveying device 80 according to the second embodiment can have a simpler structure and a lower manufacturing cost than the conventional conveying device.

  In the screw type vertical conveying devices 20 and 80 according to the first and second embodiments, the case body 26 constituted by the lower plate 42, the frame body 44, the upper plate 46, and the gantry 38, Although the screws 22 and 24 and the guide member 28 were attached, the screws can be arranged in parallel to each other, and the guide member guides the conveyed object moving on the blade portion of the screw. Any other configuration may be used as long as it can be used.

  The guide member 28 is formed in a flat plate shape and has a guide surface 28a substantially parallel to the surface including the axis of the screws 22 and 24. However, the guide member is formed on the axis of the pair of screws. It may have a substantially parallel portion, and may have any other shape such as a plurality of long rail members extending in the vertical direction.

  Further, in the screw type vertical conveying devices 20 and 80 according to the first and second embodiments, the screws 22 and 24 are driven by gears 52 and 54, pulleys 56 and 58, a belt 60 and a drive motor 62. However, it is only necessary to be able to rotate in the opposite direction at the same speed, and is not limited to such a configuration.

  Moreover, in the screw-type vertical conveyance devices 20 and 80 according to the first and second embodiments, the conveyed product 21 is a substantially rectangular parallelepiped having a depth dimension L, a width dimension W, and a height dimension H. The bottom surface 21a has an upper end formed in an open box shape, but the upper end is not open as long as it can move on each of the blade portions of the pair of screws. It may be of any shape, such as a thing formed in a box shape in which six sides are packaged, or a round shape not formed in a box shape.

  The blade portion of the screw may be changed in width dimension, pitch length, or inclination protruding outward in accordance with the shape or size of the conveyed product.

DESCRIPTION OF SYMBOLS 20 Screw type up-down direction conveying apparatus 21 Conveyed material 21a Bottom surface 22 Screw 23 Blade fixing | fixed part 23a Large diameter part 24 Screw 25 Blade | wing part 25a Upper surface 26 Case body 27 Blade fixing | fixed part 27a Large diameter part 28 Guide member 28a Guide surface 29 Blade | wing part 29a Upper surface 30 Shaft core member 32 Cylindrical member 32a Shaft hole 34, 36 Disk member 34a, 36a Fitting hole 38 Mounting base 40 Angle 42 Lower plate 42a Upper surface 42b Lower surface 44 Frame body 45 Upper frame 46 Upper plate 46a Upper surface 46b Lower surface 47 Lower frame 48 Bearing 49 Wall plate 50 Bearing 52, 54 Gear 56, 58 Pulley 60 Belt 62 Drive motor 62a Drive shaft 64, 66 Roller conveyor 68 Lever 70 Cylinder 70a Telescopic rod 80 Screw type vertical conveyance device H Height dimension L Depth Law P pitch W width dimension

Claims (3)

A pair of screws each having a pair of spiral blades whose spiral winding directions are opposite to each other around each of a pair of axial lines arranged in the vertical direction and capable of rotating in an opposite direction in conjunction with each other; ,
And a guide member having a surface substantially parallel to a surface including an axis of each of the pair of screws or a portion substantially parallel to the axis. Each of the pair of gears having the same number of teeth is attached to each of the pair of screws,
The screw-type up-and-down conveying device according to claim 1, wherein the pair of gears mesh with each other so that the pair of screws can be interlocked to rotate in opposite directions.   The screw type vertical conveyance according to claim 1 or 2, wherein each of the pair of screws is formed such that an interval in the vertical direction of the blade portion is larger than a height dimension of the conveyed product. apparatus.

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