JP2006273458A - Posture maintenance mechanism for conveyed container in endless conveyer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To restrain lengthening of a conveyer and speed-up of a conveyance chain and to realize safe conveyance of chicken eggs by securing a space for avoiding collision in a process of turning at a folded-back part with the sharp ends of the eggs directed downward even intervals for mounting conveyance egg seats are made to be tight at the time of horizontal movements in an endless conveyer for continuously conveying the chicken eggs. <P>SOLUTION: In the posture maintenance mechanism, a supporting point of the conveyance egg seat 9 (a rotation axis of a satellite sprocket 7) is rotatably mounted to the outer peripheral side of the conveyance chain 4 via displacement plates 5, 13 mounted to the conveyance chain 4 when the conveyance egg seat 9 turns at the folded-back part, and a revolution sprocket 12 for maintaining the posture is rotatably mounted on the displacement plate 5. In order to maintain a posture of the revolution sprocket 12, the inner periphery of the conveyance chain 4 is provided with a posture chain 15 moving at the same speed of the conveyance chain 4, and the posture of the revolution sprocket 12 is reflected to a posture of the conveyance egg seat 9 by a set of separately-provided rotation transmission means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a means for changing a conveyance path while maintaining the posture of eggs in an automatic egg processing system that automatically processes washing, inspection, sorting, packaging, and the like of a large number of eggs.

  In conventional automatic egg processing systems, eggs are processed in six rows in the process of cleaning, inspection, etc., and in the process of sorting, packaging, etc., a single row transfer unit is used by a technique such as Japanese Patent Publication No. 53-8423. It was transferred to and processed such as sorting and packaging.

  However, in such a system, the transfer speed of the single-row transport section is generally six times that of the six-row transport section, which is not a preferable state. In recent years, there are many requests for high-speed processing of an automatic egg processing system. For example, in the conventional apparatus configuration, if the six-row transfer speed is doubled and the speed is increased, the single-row transfer speed for sorting, packaging, etc. is very high ( The chicken eggs are more susceptible to damage, which hinders speeding up.

As a technique for safely processing eggs at high speed, an egg processing system has been devised that transports sorting sections in multiple rows. For example, when the technique of JP 2002-153160 A is adopted, chicken eggs are transported in six rows in the process of sorting, packaging, etc., as well as the process of egg feeding, egg washing, etc., so the processing speed is doubled. However, the transport speed is twice the original six-row transport speed (1/3 compared to the conventional single-row transport speed) in all processing steps, and the eggs are not easily damaged.
JP-A 6-2111213 Shoko 53-8423 JP 2002-153160 A Ito Shigeru "Encyclopedia of Mechanisms" published by Rigakusha 1983

  In the egg processing system that performs sorting and transporting in a plurality of rows, as shown in FIG. 1, as the means for changing the transport path while maintaining the posture of the eggs, the transport egg 9 is sharply moved from above to the transport egg 9. The egg 11 is inserted with its end facing downward, folded while maintaining its posture, and when the carrier egg 9 moves horizontally again, it has a function of releasing the egg 11 accommodated in the carrier egg 9 downward. An endless conveyor is useful.

  For example, in the folding part of an endless conveyor in which the transporting egg seat 9 transports the chicken eggs 11 horizontally, in order to keep the posture of the transporting egg seat 9 and the accommodated chicken eggs 11 horizontal and turn them back, Japanese Patent Application Laid-Open No. Hei 6-2111213 etc. As in the technique used, mutual contact at the folded portion is prevented by a method in which the mounting interval of the transfer seat 9 is made sparse. However, if the installation interval of the transfer egg seat 9 is made sparse, it is necessary to increase the length of the conveyor according to the sparse ratio, or to increase the speed of the transfer chain 4 in order to maintain a predetermined egg processing speed. There were difficulties in increasing the installation area of the treatment system and the impact received by the eggs. In order to safely transport eggs and prevent a reduction in processing capacity, it is desirable to ensure a space that avoids collision only when the transport egg seat 9 of the endless conveyor rotates at the turn-up portion.

  In the “encyclopedia of mechanisms”, the mechanism of FIG. 5 is introduced as “non-rotating three-gear train”. The non-rotating three-gear train mechanism is composed of three gears (gears 31, 32, 33) and an arm 34 that connects the three gears in one row, and the gear 31 is fixed even if the arm 34 is rotated. 33 moves around the axis of the gear 31 while maintaining its posture (without rotating itself).

  When the non-rotating three-gear train mechanism is employed in the rotating part of the endless conveyor with the horizontal conveying part, the arm 44 connected to the gear 42 and the gear 43 is separated from the gear 41 during horizontal movement as shown in FIG. As a result, when the gear 42 starts to mesh with the gear 41 again at the folded portion on the right side of FIG. 6 until the tooth tip circle of the gear 41 and the gear 42 starts to overlap, the center of the gear 42 reaches just above the gear 41. The gear 42 rotates excessively until the center of the gear 42 when the meshed gear 41 and the gear 42 are separated from the position just below the gear 41 until there is no overlap of the tooth tip circles of the gear 41 and the gear 42. do. If the gear 42 rotates excessively, the posture of the gear 43 cannot be maintained. In addition, when the gear 41 and the gear 42 start to mesh with each other, there is a problem that the tooth tip and the tooth tip collide with each other depending on the position of the tooth tip of each gear. Cannot be used for moving parts.

  In the folding part of the endless conveyor in which the transport egg 9 horizontally transports the eggs 11, the transport egg is transferred to the outer peripheral side via the displacement plates 5 and 13 so that the fulcrum of the transport egg 9 is further away from the trajectory of the transport chain 4. A seat 9 is rotatably attached, and a revolving sprocket 12 that maintains the posture is rotatably attached to the displacement plate 5. In order to maintain the posture of the revolving sprocket 12, as shown in FIG. 1, the posture chain is located on the inner circumference of the trajectory of the transport chain 4 and moves gradually at the same speed as the transport chain 4 and gradually approaches and meshes with the revolving sprocket 12. 15 and the satellite sprockets 6 and 7 as a set of rotation transmission means and the endless chain 8 that keeps the attitude of the revolving sprocket 12 separately keep the attitude of the carrier egg seat 9 horizontal. According to the configuration of FIG. 1, as shown in detail in FIG. 4, the mounting interval between the adjacent transporting egg seats 9 at the turn-up portion is set so that the supporting point of the transporting egg seat 9 is moved to the outer circumferential direction of the transporting chain 4 via the displacement plates 5 and 13. Due to the displacement, the mounting interval between the adjacent transporting egg seats 9 of the horizontal moving part is widened, and a margin is created in the rotation space of the transporting egg seat 9.

  According to the present invention, there is a margin in the vertical direction as well as a margin in the horizontal direction in the rotating part. Therefore, even in a vertically long article such as the egg 11, the adjacent transport egg seat 9 and the egg 11 in the folded part In order to avoid the collision, the transporting egg seat 9 can be rotated at the turn-back portion while maintaining the posture without making the mounting interval to the transporting chain 4 sparse. As a result, the length of the conveyor and the speed of the transport chain 4 are not required, and the eggs 11 are transported safely.

  In the endless conveyor, when the transport egg 9 rotates at the turn-up portion, the displacement plate 5 is moved to the transport chain 4 so that the rotation axis of the satellite sprocket 7 (the fulcrum of the transport egg 9) goes farther around the outer circumference than the trajectory of the transport chain 4. And a pair of satellite sprockets 6 serving as rotation transmission means for reflecting the attitude of the revolving sprocket 12 to the carrier egg 9 on the displacement plate 5. 7, an endless chain 8 and a transporting egg seat 9 are rotatably attached, and the posture chain 15 which moves at the same speed as the transport chain 4 on the inner periphery of the transport chain 4 and gradually approaches and meshes with the revolving sprocket 12; A posture roller 17 that makes the pitch circle formed by the chain 15 the same pitch circle diameter as the revolution sprocket 12, and a drive sp that drives the posture chain 15. A rocket 16 is provided.

  If the endless conveyor is configured in this way, as shown in FIG. 1, the chicken egg 11 put into the transporting egg 9 from the upper part in the process of the horizontal movement of the transporting egg 9 is turned up with the transporting egg 9 at the folding part. The stored eggs 11 rotate while avoiding a collision with the adjacent transfer egg 9 while maintaining the posture, and the transfer eggs 9 are closely arranged again in the lower moving portion, and the stored eggs 11 are illustrated. 1 can be discharged to the lower stroke.

  Hereinafter, although the Example of this invention is described based on drawing, this invention is not limited only to this Example.

  1 is a front view, FIG. 2 is a side view, FIG. 3 is a plan view, and FIG. 4 is a detailed view of a folded portion. In FIG. 1, a pair of left and right transport chains 4 are driven in the direction of arrow a in FIG. 1 by a pair of left and right drive sprockets 3 through a drive shaft 1 by a driving device such as a motor together with a displacement plate 5 and a transport egg seat 9. Is done. At the same time, the posture chain 15 in FIG. 3 is driven by the drive sprocket 16 from the drive shaft 1 through the sprocket 21, the chain 20, the sprocket 19, and the shaft 18 in the direction of arrow b in FIG. The driven shaft 2 in FIG. 3 is driven by the transport chain 4 via the drive sprocket 3 on the driven shaft 2 to drive the sprocket 22, the chain 23, the sprocket 24, and the shaft 25.

  A displacement plate 5 is attached to the conveyance chain 4 on the left side of FIG. 2, and a satellite sprocket 6 fixed together with the revolution sprocket 12 on the side close to the attachment portion of the displacement plate 5 is rotatable and attached to the attachment portion of the displacement plate 5. On the far side, a carrier egg 9 fixed together with the satellite sprocket 7 is rotatably mounted, and an endless chain 8 for interlocking the satellite sprocket 6 and the satellite sprocket 7 is provided. The posture chain 15 and the driving sprocket 16 and the posture roller 17 for driving the posture chain 15 are provided only on one side as shown in FIG. A displacement plate 13 is attached to the conveyance chain 4 on the right side of FIG. 2, and the displacement plate 13 supports one of the conveyance eggs 9 in a rotatable state. The transport egg seat 9 on the displacement plate 13 side is provided with a side roller 14, and a guide 26 is provided so as to guide the side roller 14 in order to maintain the posture of the transport egg seat 9 during horizontal movement.

  1 will be described in detail with reference to FIG. The revolving sprocket 12 attached to the transport chain 4 together with the displacement plate 5 meshes with the posture chain 15 located inside the transport chain 4 at the same speed before the turn-up portion while gradually approaching. Here, since the transport chain 4 and the posture chain 15 that are moving horizontally move at the same speed, the revolving sprocket 12 advances to just above the drive shaft 1 without rotating even when meshed with the posture chain 15. When the revolving sprocket 12 starts rotating at the turn-back portion together with the transport chain 4, the revolving sprocket 12 keeps meshing with the posture chain 15 as the transport chain 4 advances, and the non-rotating three-gear train around the drive shaft 1 (FIG. 5). Like the gear 33 of FIG. 3), it does not rotate and moves while maintaining its horizontal posture. The horizontal position of the revolving sprocket 12 is transmitted from the satellite sprocket 6 fixed together with the revolving sprocket 12 to the satellite sprocket 7 in the outer peripheral direction of the conveying chain 4 via the endless chain 8, and the conveying egg fixed together with the satellite sprocket 7. The horizontal posture of the seat 9 is maintained. At the same time, the carrier egg 9 fixed together with the satellite sprocket 7 on the displacement plate 5 and the housed egg 11 accommodated by the displacement of the fulcrum of the carrier egg 9 in the outer circumferential direction of the carrier chain 4 via the displacement plates 5 and 13 It is extended from the attachment interval of the conveyance egg seat 9 of the horizontal movement part. Due to the rotation space widened at the turn-back portion, the adjacent transfer egg seats 9 can be rotated without colliding with each other, and the interval between the transfer egg seats 9 that have entered the horizontal movement again after the rotation is finished returns densely. .

  In an endless conveyor to which a plurality of transfer eggs 9 for chicken eggs 11 are attached, it is possible to attach the transfer eggs 9 densely, so that the length of the conveyor and the speed of the transfer chain 4 need not be increased. Are transported relatively safely.

The schematic front view concerning the Example of the endless conveyor to which this invention is applied 1 is a schematic side view taken along line AA in FIG. 1 is a schematic plan view taken along line BB in FIG. Detailed view of the folded portion of FIG. Schematic of non-rotating three gear train Schematic of an example of adoption of a non-rotating three-gear train mechanism

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drive shaft 2 Drive shaft 3 Drive sprocket 4 Conveyance chain 5 Displacement plate 6 Satellite sprocket 7 Satellite sprocket 8 Endless chain 9 Conveyance egg seat 11 Hen egg 12 Revolving sprocket 13 Displacement plate 14 Side roller 15 Attitude chain 16 Drive sprocket 17 Attitude roller 18 Axis 19 sprocket 20 chain 21 sprocket 22 sprocket 23 chain 24 sprocket 25 shaft 26 guide 31 gear 32 gear 33 gear 34 arm 41 gear 42 gear 43 gear 44 arm

Claims (1)

  In an endless conveyor in which a plurality of containers (hereinafter referred to as “carrying ovum”) 9 for eggs 11 are attached to an endless conveying chain (hereinafter referred to as “carrying chain”) 4, the fulcrum of the carrying egg 9 is located on the outer periphery of the locus of the conveying chain 4 The transporting egg seat 9 is rotatably mounted via a displacement plate that displaces the small sprocket (hereinafter referred to as “satellite sprocket”) 6 and 7 so as to pass through. An endless chain (hereinafter referred to as “posture chain”) 15, a drive sprocket 16 and a roller (hereinafter referred to as “posture roller”) 17 that move at the same speed as the moving speed of the transport chain 4 are provided. A meshing sprocket (hereinafter referred to as “revolving sprocket”) 12 is rotatably mounted, and the posture of the revolving sprocket 12 is conveyed to the egg. Position maintaining mechanism of conveying egg 9, further comprising a rotation transmitting means to reflect the 9.

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