JP4633132B2 - Chopstick material grinding equipment - Google Patents

Description

  The present invention relates to a chopstick material grinding apparatus that is optimal for manufacturing chopsticks by effectively using a remaining material generated when, for example, a pillar material, a plate material, or the like is cut out from a raw wood.

  For example, when a pillar material, a plate material, or the like is cut out from a raw wood, a back plate at the outer peripheral edge of the raw wood is generated as a remaining material. Therefore, semi-finished chopsticks (chopstick materials) such as disposable chopsticks and loose chopsticks are manufactured by effectively using such remaining materials.

  A cutter device for cutting chopsticks that cuts the tip side of the chopstick material round is known (for example, see Patent Document 1).

Such a cutter device for cutting chopsticks is formed by forming a plurality of slots for projecting a cutter on a circular rotating disk and attaching the cutter to a cutter mount. Then, the chopstick material is conveyed below the circular rotating disk while being rotated, and the circular rotating disk is rotated to cut the tip portion of the chopstick material into a tapered shape with a blade.
Japanese Utility Model Publication No. 61-112907

  However, since the conventional blade device for cutting chopsticks has a configuration in which a plurality of blades are attached to a circular rotating disk, adjustment of the movement of each blade is complicated, and skill is required for adjusting the movement of the blade. . In addition, the configuration in which a plurality of blades are attached to the circular rotating disk has a problem that the structure is complicated.

  It is an object of the present invention to provide a chopstick material grinding apparatus that can smoothly process a tip portion of a chopstick material in a tapered shape with a simple configuration without requiring skill.

  The present invention relates to a chopstick material transport device that sequentially transports chopstick material along the longitudinal direction from one side of a machine base to be grounded to the other, a chopstick material supply device provided on one side of the machine base, and the chopsticks A chopstick material rotating device that is provided on the other side of the material supply device and that rotates the chopstick material; and a grinding means for grinding the rotating chopstick material, the grinding means being disposed on the rotating disk and the lower surface of the rotating disk One of the chopsticks is ground by sandpaper that is provided with sandpaper provided and rotates together with the rotating disk.

  Furthermore, in the grinding apparatus for chopsticks, the lower surface of the rotating disk is formed in a tapered shape.

  In the present invention, by employing sandpaper as the grinding means, the tip of the chopstick material can be smoothly processed into a tapered shape with a simple configuration without requiring skill.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 to 8 show a chopstick material grinding apparatus 1 according to an embodiment of the present invention.

  As the chopstick material 9, the width direction dimension W gradually decreases from one end to the other end (tip) as shown in FIG. 9 (a), and the chopsticks according to the present embodiment as shown in FIG. 9 (b). The tip 9a side is smoothly cut into a tapered shape by the material grinding device 1.

  As shown in FIGS. 1 to 3, the chopstick material grinding apparatus 1 sequentially conveys the chopstick material 9 from one upstream side A to the other downstream side B of the grounded machine base 10. 3, the chopstick material supply device 4 provided on the upstream side A of the machine base 10, and the chopstick material 9 provided on the downstream side B of the chopstick material supply device 4 and conveyed by the chopstick material conveyance device 3. And a grinding means 6 provided opposite to the chopstick material rotating device 5 to smoothly grind the tip side of the rotating chopstick material 9 to have a circular cross section and a tapered shape. .

  In the chopstick material conveying device 3, a pair of endless belt conveyors 30 a and 30 b are rotatably provided by a motor 31 on the upstream side A and the downstream side B of the gantry 10. The conveyors 30a and 30b are arranged in parallel with each other at a predetermined interval. Each of the conveyors 30a and 30b is configured by continuously connecting pallets 35 each having a plurality of concave portions 33 for conveying chopsticks.

  The chopstick supply device 4 includes a pair of rotating disks 41 and 41 that rotate in conjunction with a motor 40, and a supply hopper 43 that supplies the chopstick material 9 to the rotating disks 41 and 41. The pair of rotating disks 41 and 41 are disposed between and above the conveyors 30a and 30b. A plurality of recesses 44 with which the chopstick material 9 is engaged are formed on the outer peripheral portion of each of the rotating disks 41, 41. Accordingly, the chopstick material 9 is held in a horizontal state by engaging with the recesses 44, 44 of both the rotating disks 41, 41 (see FIGS. 6 to 8).

  Rotating discs so that the first holding plates 45, 45 that slide and hold the both ends of the chopstick material 9 engaged with the recesses 44, 44 from the lower side are located on both outer sides of the respective rotating discs 41, 41. 41 and 41 are fixed to the machine base 10 side with a slight gap. The first holding plates 45 and 45 are provided with strips along the circumferential direction of the rotary disks 41 and 41.

  When the chopstick material 9 is transported to a position below the center O of the rotary disks 41, 41, the chopstick material 9 falls off the recess 44 and falls. Therefore, the second holding plate 46 is provided so that the chopstick material 9 does not fall off the recessed portion 44 and fall. The second holding plate 46 is also made of a band plate material, and is disposed along the outer circumference of the rotary disks 41 and 41 so as to be located outside the chopstick material 9 and downstream of the first holding plate 45 in the conveying direction of the chopstick material 9. Is provided.

  As shown in FIG. 8, the upstream end portion 46 a of the second holding plate 46 overlaps the downstream end portion 45 a of the first holding plate 45 in the circumferential direction. Further, the downstream end 46b of the second holding plate 46 is close to the upper surface of the circulating conveyors 30a and 30b, and the chopstick material 9 that has passed through the downstream end 46b of the second holding plate 46 is the recess 44. And is transferred to the conveyors 30a and 30b.

  As shown in FIG. 6, the supply hopper 43 has a loading port 47 whose upper surface is open, and an inclined surface 43 a is provided on the back side, and the chopstick material 9 put into the supply hopper 43 is provided with the inclined surface. It is supposed to slide down. The supply hopper 43 may be provided with a scraping wheel (not shown) that is rotationally driven, and the chopstick material 9 is aligned with the scraping wheel and supplied to the rotating rotating disks 41 and 41 sequentially.

  The chopstick material rotating device 5 is provided above the conveyors 30a and 30b, and a pair of pulleys 50 and 50 that are driven to rotate by a motor (not shown), and an endless belt 51 wound around the pulleys 50 and 50. And a plurality of presser rollers 52.

  The belt 51 circulates and rotates in the direction of the arrow shown in FIG. 1, and the belt lower portion 51a is positioned between the conveyors 30a and 30b. Accordingly, the belt 51 comes into contact with the chopstick material 9 conveyed by the conveyors 30a and 30b, and the chopstick material 9 can be rotated counterclockwise in FIG. The pressing roller 52 is for applying a predetermined pressing force to the belt lower portion 51a, and rolls on the inner surface of the belt lower portion 51a.

  The grinding means 6 includes a vertical drive shaft 61 that is rotated by a motor 60 via a speed reducer (not shown), a horizontal and circular rotary disc 63 through which the drive shaft 61 is inserted, and a rotary disc 63. Sandpaper (sandpaper) 65 is attached to the lower surface 63a. As shown in FIG. 4, the lower surface 63a of the turntable 63 is formed in a taper shape so that the thickness of the center portion of the turntable 63 is the largest and the thickness gradually decreases in the radially outward direction.

  The count of the sandpaper 65 can be set as appropriate depending on the material of the chopstick material 9, but in the case of cedar, etc., about 100 is most preferable because the finish is good. The sand paper 65 is provided on the entire lower surface 63 a except for the drive shaft 61.

  A part of the turntable 63 faces above the one conveyor 30a and rotates in the direction of the arrow shown in FIG. As shown in FIGS. 4 and 5, the machine base 10 is provided with a guide member 66 that supports the distal end portion 9 a of the rotating chopstick material 9 from below. This guide member 66 slightly raises the leading end 9a of the chopstick material 9 so that the sandpaper 65 can stably grind the leading end 9a of the chopstick material 9, and the conveyor 30a does not interfere with grinding. ing.

  The chopstick material grinding apparatus 1 according to the present embodiment is configured as described above. Next, a case where the chopstick material 9 is ground using the chopstick material grinding apparatus 1 will be described.

  First, a large number of chopstick materials 9 put into the supply hopper 43 are engaged with the recesses 44 and 44 of the rotating disks 41 and 41, respectively. Note that the chopsticks material 9 is fed so that the tip 9a side faces the grinding means 6 side.

  On the other hand, by the operation of the motor 31, the chopstick material transport device 3 operates and the conveyors 30a and 30b circulate and rotate. Then, the chopstick material 9 taken out from the supply hoppers 5 and 5 and conveyed by the rotating disks 41 and 41 is sequentially supplied to the chopstick conveyance recesses 33 of the conveyors 30a and 30b, respectively.

  In this way, the chopstick material 9 delivered to the conveyors 30a and 30b is conveyed to the conveyors 30a and 30b. At this time, the chopstick material 9 is in a state orthogonal to the conveying direction of the conveyors 30a and 30b, and the leading end 9a of the chopstick material 9 is engaged with the chopstick conveying concave portion 33 of one conveyor 30a.

  When the chopstick material 9 reaches the chopstick material rotating device 5, the belt 51 circulated and rotated by the rotation of the pulleys 50 and 50 rotates the chopstick material 9 in the chopstick conveyance recess 33 of the conveyors 30a and 30b (in FIG. 1). Rotating counterclockwise.) While rotating in this way, the chopstick material 9 tends to pass below the rotating plate 63 on which the grinding means 6 rotates. At this time, the tip 9a side of the chopstick material 9 is slightly raised by the guide member 66 and comes into contact with the sand paper 65 that rotates together with the rotating disk 63, so that the surface of the tip 9a is smoothly cut and polished in a tapered shape.

  Since the lower surface 63a of the turntable 63 is inclined in a taper shape, the grinding length in the radial direction of the turntable 63 can be made longer than that of a flat surface (straight line). It is also possible to form a sharp chopstick tip with a small diameter.

  The chopstick material 9 passing through the grinding means 6 is further discharged after being further conveyed.

  The chopstick material grinding apparatus 1 employs sandpaper 65 as the grinding means 6. As a result, it is not necessary to adjust the blade as in a conventional chopstick cutting blade device, and the tip of the chopstick material can be smoothly processed into a tapered shape with a simple structure without requiring skill. .

  The present invention is not limited to the above embodiment. For example, the chopstick material 9 may have a constant width direction dimension W from one end to the other end. Further, the chopstick material 9 may be processed by grinding both ends.

  Further, the lower surface of the turntable 63 does not necessarily need to be tapered, and may be a flat surface. Further, the rotation direction of the turntable 63 and the chopstick material 9 is not limited to the above direction.

1 is a schematic front view of a chopstick material grinding apparatus showing an embodiment of the present invention. It is a schematic plan view of the grinding apparatus of the chopsticks. It is a perspective view of the state which removed the rotating disc and supply hopper of the grinding device of the chopsticks material. It is sectional drawing which shows the grinding state of the grinding device of the chopsticks material. It is a top view which shows the grinding state of the grinding device of the chopsticks material. It is a section front view showing the outline of the chopsticks material supply device. It is a top perspective view of the chopstick material supply device. It is a top perspective view which shows the principal part of the chopsticks material supply apparatus. A pair of chopsticks is shown, (a) is a perspective view before grinding, (b) is a perspective view after grinding.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Chopstick material grinding device 3 Chopstick material transport device 4 Chopstick material supply device 5 Chopstick material rotation device 6 Grinding means 9 Chopstick material 9a Chopstick material tip 30a Conveyor 30b Conveyor 33 Chopstick conveyance recess 41 Rotating disc 43 Supply hopper 45 First holding plate 46 Second holding plate 63 Rotating disc 65 Sandpaper (sandpaper)

Claims (2)

  From a chopstick material transport device that sequentially transports chopstick material along the longitudinal direction from one side of the machine base to the ground, the chopstick material supply device provided on one side of the machine base, and the chopstick material supply device A chopstick material rotating device that is provided on the other side and rotates the chopstick material, and a grinding means for grinding the rotating chopstick material, and the grinding means comprises a rotating paper and a sandpaper provided on a lower surface of the rotating disk. The chopstick material is ground by sandpaper that rotates together with a rotating disk. 2. The chopstick material grinding apparatus according to claim 1, wherein a lower surface of the rotating disk is formed in a tapered shape.

Images