JP2008247489A - Overturning-prevention device in conveying product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the overturning and rolling of a product in conveying when a short cylindrical product of a large diameter is conveyed while being placed on the catching tray of a conveyor. <P>SOLUTION: In a device conveying the cylindrical product R while placing it on the catching tray 1a of the chain conveyor 1, an overturning preventing bar 2 which projects from the lower part of the catching tray 1a attached to the chain conveyor and grasps the cylindrical product from the front and rear or from the right and left is arranged to be driven in synchronization with the catching tray 1a of the conveyor 1. When conveying by the chain conveyor, the cylindrical product is grasped in a product loading up position, and ungrasped in a transfer position, then transferred. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an overturn prevention device for preventing a product, particularly a cylindrical product, from being overturned when the product is conveyed by a chain conveyor.

  When a cylindrical product with a large diameter and a short length is placed on the tray of a chain conveyor in the width direction or the diameter direction in the width direction or the width direction, it is transported continuously or intermittently. May fall due to product inertia. For this reason, the chain type conveyor is usually designed to prevent tipping by the shape of the saucer, but if the diameter is extremely large and the length is short, it is difficult to prevent tipping during transport. Measures are required, but no preventive measures have been proposed yet.

  The present invention addresses the actual situation as described above. In particular, the cylindrical product is placed on the conveyor tray by finding the installation of a fall-preventing bar that is driven in synchronization with the tray of the conveyor so as to be able to protrude and retract from the lower portion of the tray attached to the chain conveyor. It is intended to prevent the product from falling or rolling by conveying it while holding it.

  That is, the feature of the present invention that meets the above-described purpose is that, first, in a device for carrying a cylindrical product on a tray attached to a chain conveyor, the cylindrical product protrudes from the lower part of the conveyor tray and grips the cylindrical product. There is a fall prevention bar. Here, it is effective that the fall prevention bar is driven in synchronization with the chain type conveyor tray.

  Claim 3 is a specific embodiment of the overturn prevention bar of the basic invention, which is engaged with a rack at the upper part of the lifting shaft operated by the air cylinder at the lower part of the chain type conveyor, and opens and closes from the lower part of the conveyor to bring the product It is a stopper arm with a stopper roller for gripping and releasing.

  Claims 4 and 5 are specific applications of the above invention, and claim 4 is a product in which a fall prevention bar protrudes from the front and rear of a cylindrical product that is horizontally conveyed with its radial direction being transverse to the conveying direction. Further, according to a fifth aspect of the present invention, the product is gripped by projecting the fall prevention bars from the left and right sides of the cylindrical product which is vertically conveyed with the radial direction in the conveying direction. A sixth aspect of the present invention is characterized in that a cylindrical product is gripped by projecting at the product loading position of the chain conveyor, and the product is released from the transfer position and transferred. To do.

  According to the above-described apparatus of the present invention, since the fall-prevention bar is provided at the lower part of the chain conveyor tray, and this is driven in synchronization with the conveyor tray, the cylindrical product is gripped at the same time when the cylindrical product is conveyed on the chain conveyor tray. Therefore, the cylindrical product is prevented from being overturned or rolled during conveyance, and the cylindrical product can be reliably and stably conveyed by the conveyor.

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

  FIG. 1 shows a mode in which a cylindrical product R such as a web take-up roll is laterally transported on a tray of a chain conveyor 1 composed of a tray block 1a with its radial direction perpendicular to the direction of the arrow. In addition, an overturn prevention bar 2 that holds the products R on the front and rear surfaces of the cylindrical product R to be conveyed and prevents the products from overturning or rolling is provided so as to be driven in synchronization with the conveyor tray. In general, it has been difficult to provide such a fall-preventing bar on a tray such as a chain conveyor, and it has not been possible to attach it to the tray and drive it synchronously, but the present invention makes this possible.

  That is, in the example shown in FIGS. 2 and 3, the overturn prevention bar 2 protrudes from the lower part of the tray 1 a of the chain conveyor 1 and is gripped from the front and rear of the cylindrical product R. A lift shaft which is formed with a stopper roller 4 at its tip, and a rack gear 5 is axially attached to the base end of the stopper arm 3 and is lifted and lowered by a rod 7 extending from an air cylinder 6 fixed at the lower part of the mounting position. The stopper arm 3 and the stopper roller 4 attached to the tip of the arm are engaged with the rack 9 at the tip of the 8 and moved up and down so that it can protrude or sink into the tray block of the conveyor.

  A locking spring 11 is provided between the support plate 10 fixedly attached to the lower part of the conveyor 1 and the lower end of the elevating shaft 8 and is locked when gripped by the stopper roller 4 and gripped by the stopper roller 4. At the time of release, the lock spring 11 is pressed by pushing up the rod 7 of the air cylinder 6, and the stopper arm 3 is opened together with the stopper roller 4 so as to be immersed in the lower part of the conveyor 1.

FIG. 4 specifically shows a situation in which the cylindrical product R is prevented from falling using the above-described overturn prevention bar 2 and conveyed by the conveyor. The chain conveyor is suspended between pulleys P ₁ and P ₂ and rotates endlessly. In the conveyor 1 conveyance as described above, the gripping mechanism by the stopper roller 4 is operated at the product loading position a to start the conveyance of gripping the product, and the grip release is activated at the position where the conveyance advances and transfers, and the series of conveyance is completed. . In addition, although the apparatus in each said figure is a case where the cylindrical product R is horizontally conveyed on a conveyor tray with the radial direction being transverse, the cylindrical product R is vertically conveyed with its radial direction being parallel to the conveyor. Sometimes it is done.

  FIG. 5 shows such a vertical conveyance mode, and the cylindrical product R conveyed vertically by the chain conveyor 1 is attached to the conveyor 1 via the mounting bracket 12 as shown in FIGS. 6 (a) and 6 (b). It is held by the receiving portion 1b and is held and conveyed by the fall prevention bar 2 from both side surfaces in the conveying direction. In this case, the structure of the overturn prevention bar 2 is substantially the same as that in the lateral conveyance, and is formed by the stopper arm 3 and the stopper roller 4 at the tip, and the rack gear 5 is pivotally attached to the base end of the stopper arm 3. The stopper roller 4 of the toppling prevention bar 2 is opened and closed as it is engaged with the rack 9 above the lifting shaft 8 that is pressed by the rod 7 of the air cylinder 6. The article R is grasped from both sides or released. However, in the case of vertical conveyance, unlike the front and rear gripping of the cylindrical product R for horizontal conveyance, the overturn prevention bar 2 is provided so as to protrude from both sides of the conveyor 1 in order to grasp from both side surfaces. Therefore, in the case of vertical conveyance, the overturn prevention bar 2 can be provided independently on both the left and right sides as shown in FIG. 6, the rack mechanisms are independent, and the left and right stopper rollers 4 operate independently. be able to.

  As described above, according to the present invention, the conveyance conveyor is provided with the overturn prevention bar, and the bar is driven in synchronization with the conveyor tray, so that the conveyance of the cylindrical product can prevent the overturn while holding the product. Stable conveyance is possible.

  The present invention can be widely used not only for transporting web winding roll products but also for transporting similar cylindrical products.

It is outline | summary explanatory drawing at the time of the horizontal conveyance which shows an example of the apparatus which concerns on this invention, (A) is a perspective view, (B) is a side surface schematic diagram. It is explanatory drawing of the product holding | grip state by a fall prevention bar. It is gripping state explanatory drawing by a fall prevention bar. It is action | operation explanatory drawing of the fall prevention bar in conveyor conveyance. It is outline | summary explanatory drawing at the time of vertical conveyance. FIG. 5 shows a manner of attaching the receiving portion in FIG. 5, (A) is a front view, and (B) is a side view. It is a schematic explanatory drawing which shows the fall prevention bar in the case of operating the left and right stopper rollers independently.

Explanation of symbols

R: Cylindrical product 1: Chain conveyor 2: Fall prevention bar 3: Stopper arm 4: Stopper roller 5: Rack gear 6: Air cylinder 7: Rod of cylinder 8: Lifting shaft 9: Rack 10: Support plate 11: Lock Spring 12: Mounting bracket

Claims (6)

  In a device for transporting a cylindrical product on a tray attached to a chain conveyor, the product is provided with a fall prevention bar that protrudes from the bottom of the tray conveyor and grips the cylindrical product. Prevention device.   2. The overturn prevention device for product conveyance according to claim 1, wherein the overturn prevention bar is driven in synchronism with the tray of the chain conveyor.   The fall prevention bar is a stopper arm with a stopper roller that engages with the rack at the upper part of the lifting shaft that is operated by the air cylinder at the lower part of the chain conveyor, opens and closes from the lower part of the conveyor, grips and releases the product. The fall prevention device in the product conveyance according to claim 1 or 2.   4. The overturn prevention device in product conveyance according to claim 1, wherein the overturn prevention bar is protruded from the front and rear of a cylindrical product that is laterally conveyed with the radial direction being transverse to the conveyance direction.   4. The overturn prevention device for product conveyance according to claim 1, wherein the overturn prevention bar is protruded from both the left and right sides of the cylindrical product which is vertically conveyed with the radial direction in the conveyance direction to grip the product.   6. The product according to claim 1, wherein a cylindrical product is gripped by protruding a fall prevention bar at a product loading position of a chain conveyor, and the product is released and transferred by immersing the fall prevention bar at a transfer position. The fall prevention device in the product conveyance as described in the item.

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