JP2006199322A - Packing transfer device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packing transfer device that prevents a packed object from losing its position or falling over when transferring from a conveyer to the position where it is packed. <P>SOLUTION: The transfer device 3 includes a holding member 4 capable of holding a packed object P and capable of releasing the hold, and a drive mechanism 5 moving the holding member 4 horizontally and turning it around an axis perpendicular to a horizontal plane. The moving track C of the holding member moved by the drive mechanism is such that, in a transfer process after the packed object is held, the holding member reaches a second position Y after it is transferred from a first position to a straight area C2 via a curved area C1; and, in a return process after the hold is released, the holding member returns to the first position from the second position. The area where the holding member is moved from the curved area to the first position in the transfer process includes a lifting component, and the straight area extends downward. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a packing transfer device for transferring an object to be packed on a conveying surface of a conveyor onto a packing body or packing material for packing.

  A method of forming a single package by transferring a plurality of items to be packed on a conveyor conveyance surface onto a surface of a corrugated cardboard sheet as a packaging material and folding each part of the corrugated cardboard sheet one after another while conveying the packaged material. For example, a wraparound caser disclosed in Non-Patent Document 1 is known.

The wraparound caser includes a method of folding a corrugated cardboard sheet on the same level as the conveying surface of the conveyor, and a method of folding the cardboard sheet while lowering the cardboard sheet. In any case, particularly in the former method, a plurality of objects to be packed arranged on the conveyor surface of the conveyor are slid as they are from the conveyor surface of the conveyor and moved onto the cardboard sheet.
The latest packaging system encyclopedia, pages 966-968 (Fuji Techno System Co., Ltd., issued on June 1, 1995)

  There are various forms of the items to be packed. First, a vertically long pack or the like is unstable when it is slid on the conveying surface of the conveyor for transfer, and falls or shifts its position. In addition, packs and the like are filled with a continuous cylindrical package with contents, for example, a liquid material, then laterally sealed at predetermined intervals in the vertical direction, cut at this seal portion, and folded to form a flat bottom surface. Often made in a self-sustaining form. Therefore, the bottom surface of the pack is not a completely flat surface due to a level difference due to folding, and some contents may adhere to the bottom surface of the pack during the cutting and may adhere to the conveyor surface. As a result, the slide at the time of transfer is not performed smoothly, and the possibility of falling is increased.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a packing transfer device that can transfer an object to be packed from a conveyor position to a packing material position while avoiding overturning of the object to be packed.

  The transfer device for packing according to the present invention has a posture in which a plurality of objects to be packed arranged on the transport surface of the conveyor are moved from the first position on the transport surface to a predetermined second position on the packing body or on the packing material. It is provided with a transfer body for transferring an object to be packed while changing.

  In such a transporting apparatus for packing, in the present invention, the transporting body is capable of holding and releasing the object to be packed, and moving the holding member in the horizontal direction and rotating about an axis in a direction perpendicular to the horizontal direction and the horizontal plane. A movement mechanism of the holding member by the drive mechanism, and in the transfer process after holding the packaged object, the movement path moves from the first position to the linear area through the curved area and reaches the second position, and is held. It is formed so that it returns from the second position to the first position in the return process after the release, has a rising component in the portion originating from the first position from the curved area in the transfer process, and the linear area is directed downward. It is characterized by having.

  In the present invention having such a configuration, the drive mechanism is composed of only two drive bodies, that is, a drive body that linearly moves the holding member in the horizontal direction and another drive body that is rotated around an axis that is orthogonal to the direction and the horizontal plane. The holding member can be moved from the first position to the second position, and a predetermined direction can be directed to the package body at those positions.

  The article to be packed held by the holding member leaves upward from the first position on the conveyor surface of the conveyor immediately after the start of the transfer process. That is, at this time, the packaged object does not slide with respect to the transport surface. Therefore, there is no fall by slide. After that, the object to be packed draws a movement trajectory from the curved area to the straight area where the holding member faces downward, the holding is released at the lowest second position of the straight area, and the object to be packed is packed in a box shape. It is brought into place in the body or on a sheet-like packing material.

  The holding member returns to the first position in the return step and transfers the next packaged item. In this way, the movement in the transfer process and the return process is repeated alternately.

  In the present invention, it is preferable that the holding member is moved in the same direction at the same speed as the conveying speed of the conveyor at least when holding the article to be packed. By doing so, when the holding member holds the object to be packed, it is not necessary to stop it against the stopper that determines the position of the object to be packed, or to stop the conveyor, and the operating rate of the apparatus can be improved. In addition, there are no problems such as the conveyor being overturned and the posture of the packed object falling or falling at the start of running.

  In the present invention, the curved area can be formed, for example, so as to draw a portion above the major axis of an ellipse having a major axis of a straight line connecting the first position and the straight line area of the curved area to the vicinity of the transition position.

  In the present invention, the height of the second position, which is the lowest position of the linear portion, is variable, and each time the second position repeats the transfer process, the height of the packaged item is increased stepwise upward. If it is set to return to the original lowest position after a predetermined number of transfer steps, it is possible to load a plurality of packages to be packed in the package or on the packing material.

  In the present invention, if a plurality of sets of holding members are provided so that a plurality of objects to be packed can be simultaneously held, a plurality of holding members are provided on the packing material or on the packing material in one transfer process. Can be placed at the same time.

  As described above, the present invention draws a trajectory that passes through a curved area and a linear area after the holding member that holds the object to be packed once lifts the object to be packed from the first position on the conveying surface of the conveyor. Since it was decided to transfer to the second position on the packing material, there is no slide on the conveyor transport surface, so there is no tipping or collapse of posture, and the packaged items are transported stably, smoothly and quickly. The

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 shows a schematic configuration of a packing transfer apparatus according to an embodiment of the present invention.

  In FIG. 1, the code | symbol 1 is a conveyor belt of a conveyor apparatus, and is cross sectioned by the surface at right angles to the running direction. That is, the conveyor belt 1 runs in a direction perpendicular to the paper surface in FIG. In the present embodiment, as a preferred mode, the conveyor belt 1 continuously runs at a constant speed. The conveyor belt 1 conveys a plurality of items to be packed P in the traveling direction, in the illustrated example, a rectangular tube container filled with contents. The upper right side of the conveyor belt 1 is close to the side surface of the article to be packed P and moves at the same speed and in the same direction as the conveyor belt 1 when at least the article to be packed P is held by a holding member described later. A plate-like support 2 is provided as a preferred form.

  A transfer body 3 is provided on the left side above the conveyor belt 1 so as to face the support 2. The transfer body 3 includes a holding member 4 such as an adsorbing body (suction cup) supported by a support plate 4A, and a drive mechanism that moves the support plate 4A. A drive rod 5 which is part is shown. The drive rod 5 extends in the horizontal direction as indicated by the solid line in the figure, and is guided by a guide member (not shown) so as to be movable left and right in the extending direction A. The guide member can be rotated in the forward and reverse directions around an axis B perpendicular to the paper surface. The movement of the drive rod 5 in the extending direction A is performed using a servo motor (not shown) as a drive source, and the rotation of the guide member about the axis B is performed by another servo motor (not shown). These servo motors rotate according to a programmed sequence so that the holding member 4 draws a predetermined trajectory and faces a predetermined direction.

  The holding member 4 moves along a predetermined locus C from a first position where the article to be packed P is located on the conveyor belt 1 to a second position located on the packing material Q. This movement is made possible by operating both servomotors at the same time.

The locus C is composed of a curved area C1 and a straight area C2, as shown separately in FIG. The curvilinear region C1 starts from a first position X where the holding member 4 holds the article to be packed P (in the example of the figure, there are two holding members and is represented by an intermediate position thereof), and the article to be packed is displayed. P is the second position Y toward the directly downward shifts in the linear range C2 in the transition position Y ₀ of the upper with respect to the second position Y of the holding member 4 corresponding to the position to be placed on the packaging material (or Y _1, Y ₂ ).

In the case of the illustrated example, the curved area C1 depicts the upper half of an ellipse. This ellipse, as in FIG. 2, the a first position X, the straight line connecting the position near Y _{0 'above} the position Y ₀ than the second position Y at lower than the first position X as the major axis Yes. The position Y ₀ whereas the ellipse is perpendicular from the second position Y is a position that tangent.

Y, Y ₁ and Y ₂ are all in the second position, but Y is a position when the article P is placed directly on the packing material, whereas Y ₁ and Y ₂ are This is the position at which subsequent objects to be packed P are sequentially stacked on the objects to be packed already arranged on the packing material. Therefore, the distance between each of Y, Y ₁ and Y ₂ corresponds to the height dimension of one packaged item P in the stacking direction of the packaged product P. These second positions Y, Y ₁ , Y ₂ are respectively determined by sequentially setting a rotation sequence of a servo motor that drives the drive rod 5 in advance.

  Since the guide member for guiding the drive rod 5 is rotated about the other servo motor axis B, the drive rod 5 is rotated in addition to the linear motion. Therefore, the drive rod 5 is laterally oriented at the first position X, but downward at the second position Y. That is, the article P to be packaged arranged in the vertical direction at the first position X is placed in the horizontal direction at the second position Y.

  Next, the operation of this embodiment having such a configuration will be described.

  (1) With respect to the article P to be packed on the conveyor belt 1 running continuously at a constant speed, the drive rod 5 of the transfer body is oriented in the horizontal direction, and the holding member 4 moves so as to be close to the article to be packed P. .

  (2) When the holding member 4 comes into contact with the article to be packed P, the article to be packed P is held by the suction force of the holding member 4. At the time of holding, the object to be packed P is momentarily subjected to contact pressure by the holding member 4, and the support 2 for preventing the inclination of the object to be packed P at that time supports the object to be packed P from the back.

  (3) The servo motor for moving the drive rod 5 in the A direction and the servo motor for rotating the guide member for guiding the drive rod 5 about the B axis are simultaneously operated, and the holding member 4 is used in the transfer process. Enter, and move from the first position X to the second position Y through the trajectory C, and its direction also changes from the horizontal direction to the downward direction. And the holding force is cancelled | released in the 2nd position Y, and the to-be-packaged goods P are arranged on the packing material Q. FIG. In the locus C, the article to be packed P is lifted upward for a moment at the start point of the curved portion C1, that is, immediately after holding the article to be packed P. Therefore, it does not slide with the conveyor belt 1. In addition, the article P to be packed, which has been oriented in the vertical direction at the first position X, is placed in a stable posture in the lateral direction at the second position Y.

  (4) The holding member 4 returns from the second position Y to the first position X (returning step). At that time, the holding member 4 moves in the direction opposite to the transfer process even in the direction perpendicular to the paper surface, and returns to the first position X at the beginning of the transfer process. The return process does not have to be the same route as the transfer process.

(5) The holding member 4 holds the next article to be packed P that has been conveyed during the return step. Second position in the transfer step of the second object to be packed P is Y _1, the second object to be packed P is stacked on the object to be packed, which last already placed in packaging material Q The Similarly third object to be packed in the second position Y _2, is further stacked thereon.

(6) When the loading of the predetermined stage of the packaged item P is completed while sequentially shifting the second position from Y → Y ₁ → Y _{2 in} this way, the packing material Q is moved and left for the next process. The blank packing material is supplied. Here, the second position of the holding member is repeatedly set as Y → Y ₁ → Y _2, and the next packing object is loaded.

  The present invention is not limited to the illustrated example, and various modifications can be made. First, even if the holding member does not move at the same speed as the conveyor belt when holding the object to be packed, if the stopper is used to stop only the object to be packed while the conveyor belt is running, the holding member will run the conveyor belt. It may be in place in the direction. Further, the conveyor belt may be stopped intermittently without continuously constant speed. The object to be packed is held by the holding member when stopped. Therefore, in this case, the holding member and further the support need not be movable in the same direction as the conveyor belt.

  In the illustrated embodiment, the holding member has been shown as an example of holding one packaged item, but a plurality of holding members are provided in the running direction of the conveyor belt so as to hold a plurality of packaged items simultaneously. Also good.

  Although the holding member has been illustrated as an adsorption member, it may be a holding member such as a clamp.

  Furthermore, the direction may be changed at an arbitrary angle between the first position and the second position even if the direction of the packaged object does not change at a right angle, or the direction may not be changed at all.

  The sheet-shaped packing material in which the packaged body is arranged at the second position can be replaced with a box-shaped packing body.

It is a schematic block diagram of the apparatus of one Embodiment of this invention. It is a figure which shows the locus | trajectory of the holding member in the apparatus of FIG.

Explanation of symbols

1 Conveyor (Conveyor belt)
3 Transfer body 4 Holding member 5 Drive mechanism (drive rod)
C moving locus C1 curve zone C2 linear region Q packaging material X first position _{Y (Y 1,} Y 2) a second position

Claims (5)

  Transfer that moves a plurality of objects to be packed arranged on the conveying surface of the conveyor from the first position on the conveying surface to a predetermined second position in the package or on the packing material while changing the posture. In a packaging transfer apparatus comprising a body, the transfer body can hold and release a packaged object, move the holding member in a horizontal direction, and rotate about an axis line in a direction perpendicular to the horizontal direction and the horizontal plane. A holding mechanism that moves the holding member by the driving mechanism in the transfer process after holding the article to be packed, from the first position to the straight line area through the curved area, to the second position, and to release the holding. Returned from the second position to the first position in a later return process, the curved area in the transfer process has a rising component at the part originating from the first position, and is formed so that the linear area is directed downward Packing characterized by Transfer device.   2. The packing transfer device according to claim 1, wherein the holding member is moving in the same direction at the same speed as the conveying speed of the conveyor at least when holding the article to be packed.   The packaging transfer device according to claim 1, wherein the curved area draws an upper portion of the ellipse having a major axis that is a straight line connecting the first position and the vicinity of the transition position to the linear area of the curved area.   The height of the second position, which is the lowest position, is variable, and each time the second position repeats the transfer process, the straight portion moves upward stepwise by the height dimension of the packaged item, and the predetermined number of times. The transfer device for packing according to claim 1 or 3, wherein the transfer device is set to return to the original lowest position after the transfer step.   The packing transfer device according to claim 1 or 2, wherein a plurality of sets of holding members are provided so as to simultaneously hold a plurality of objects to be packed.

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