JPH0624325Y2 - Sealing device for steel band automatic binding machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a sealing device for a magazine-seal type automatic steel band tying machine, and more specifically, a surplus steel strip cut portion of a steel strip sealing part is referred to as an upper edge after sealing. A sealing device for aligning and cutting.

[Conventional technology]

Conventionally, a steel strip has been used as a binding strip for tightly binding articles, and an automatic steel strip binding machine has been used as a binding device. The superposed strip was cut around the overlapped portion, which was wound around the bundle to be bound, tightened, and cut together with a seal surrounding the overlapped portion, to cut an excess succeeding steel strip. In this case, the cut portion of the steel strip protrudes 3 to 15 mm from the trailing edge portion of the seal that covers the overlapped portion of the steel strip, and the cut-out steel strip cut portion tends to warp to the outside of the bundle. In particular, the body to be bound has a cylindrical shape, and the tendency to warp increases when the body is bound in the circumferential direction, so that a so-called projecting portion is formed on the body to be bound. In general, the bound objects are generally accumulated and stored. However, when these bound objects are relatively soft objects such as paper rolls and Kotton veils, the projecting steel strip cutting part is in contact with another bound object. Damage to the bundle,
It deteriorated the product quality or caused a problem, causing problems. In addition, the handling operator is also dangerous.

[Problems to be solved by the invention]

As described above, the projecting steel strip cutting portion is formed on the body to be bound when the surplus steel strip is cut by the sealing device, a steel strip protruding 3 to 15 mm from the rear end of the seal including the steel strip overlapping portion occurs. Therefore, the present invention has been solved by repeated trials with the goal of bringing the cut portion of the steel strip as close as possible to the trailing edge portion of the seal and finally making the protruding portion zero.

[Means for solving problems]

The present invention has taken the following measures to make the protruding portion of the steel strip zero. That is, a steel strip tip locking device,
A steel strip feeding and tightening device or a steel strip tightening device, a seal magazine device, and a sealing device are included, and a steel strip is wound around a bundle to be bound and tightened, and the overlapped portion of the steel strip is sealed with a seal to bind the bundle. In the sealing device of the steel strip automatic binding machine, a seal stopper is added to each of the pair of jaws located at the forefront among a plurality of pairs of jaws for cutting and notching the steel strip and the seal, and the rearmost jaw is provided. Immediately after that, a seal retainer plate capable of pressing the upper portion of the seal rear end and a cutter lower blade that meshes with the scissor-like upper edge of the seal rear end when the seal rear end is pressed are provided. During the sealing operation, the excess steel strip is cut in alignment with the upper edge after the sealing just before the steel strip and the seal are cut and notched. The power source for these operations is an air cylinder as before.

[Action]

By the means as described above, the sealing device of the present invention operates as follows. That is, a relatively soft bound material, for example, a steel roll is circulated around a steel strip, the leading end of the steel strip is locked by a locking device, the subsequent steel band is tightened by a tightening device, and at the same time a sealing seal is used. It is sent out from the seal magazine device and loaded, and the sealing device starts to operate. At this time, the steel strip is in a state in which the leading end is locked and tensioned by the steel strip tightening device located in front of the seal, while the front of the seal loaded above the overlapping portion of the steel strip. The rim is in contact with the seal stopper attached to the frontmost jaw. Here, the seal retainer plate descends together with Jyo and presses upward after sealing, cutting the subsequent steel strip that is interposed between the lower blade cutter and, of course, the surplus excess steel strip that the seal supports on the front seal stopper. Therefore, when the steel strip is cut, it does not move (escape) forwards when the steel strip is cut, so that it is cut in a state where it is aligned with the upper edge after sealing. After that, Jiyo further descends and bends the hem of the seal that covers the polymerized steel strip inward to wrap the overlapped portion of the steel strip, cut and cut both the polymerized steel strip and the seal, and then the Jiyo opens and rises. It ends the sealing. In this way, the cut portion of the excess steel strip completely coincides with the trailing edge of the seal and does not form the protruding portion.

〔Example〕

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a side sectional view of a main part of a sealing device in an automatic binding machine (including a tool or a machine). In this figure, the direction of arrow F is the front. In addition, the cross section taken along the line AA of the same drawing is shown in FIG. 2, the view taken in the direction of arrow B is shown in FIG. 3, and the view taken in the direction of arrow C is shown in FIG. As is well known, the main part of the sealing device is that the links 4 and 4 are pivotally supported by the link rod 5 on the piston rod 1 of the air cylinder, and the links 4 and 4 pivotally support the front jaw 3a and the rear jaw 3b by the pins b. is doing. The lower ends of the respective jaws 3a, 3b form a seal receiver for receiving the seal 40 and facilitating the loading, and for making a notch in the overlapping portion of the steel strips 50, 51 and the seal 40 enclosing it. Forming the blade of.

The point of the present invention is to use a seal stopper as an upper stopper 8a and a lower stopper 8b as a gap (front notch and seal 40) necessary for the front surface of the lower tip of the front jaw 3a.
(Designed according to the distance from the front edge of the). Here, the upper stopper 8a and the lower stopper 8a
The reason why the splits b are particularly dividedly installed is to avoid the steel strips 50 and 51 when the front jaw 3a and the rear jaw 3b cut and cut the seal 40 and the like.

Next, the seal pressing plate 21 is provided immediately after the rear joo 3b, and in this embodiment, it is directly connected to the lower portion of the rear side plate 2b. At the same time, the cutter lower blade 30 is provided in a position where the rear upper edge of the loaded seal 40 is engaged with the upper edge portion of the seal 40 in a scissor-like manner when it is pushed down by the seal pressing plate 21.

In addition, the side plates 2a and 2b are
Since the rotation pins 7 for rotating the rear jaw 3b are pivotally supported by the side plates 2a, 2b, when the links 4, 4 descend, the front jaw 3a and the rear jaw 3b are guided by the guides 70b, 70b. During the section regulated by
Then, the seal retainer plate 21 descends and pushes down the rear upper edge of the seal 40, and in cooperation with the cutter lower blade 30, the surplus portion of the succeeding steel strip 51 is cut at the steel strip cutting location 51a. The rear side plates 2a, 2b are guide long holes in which the stoppers 25, 25 are engraved inside the guides 70a, 70a.
Since the links 4 and 4 are further lowered after being stopped by being regulated by 75,75 to the position where they are stopped (the pin long hole 80
3) by means of turning pin holes 29, 29.
The a and 3b are turned exclusively into the rotational movement.

Now, the operation of the sealing device of the present invention will be described. After the steel strip 50 is wound around the bound object (not shown) and the steel strip tip 50a is locked (not shown), the succeeding steel strip 51 is provided with a steel strip tightening ring (in front of the sealing device). When tightened with (not shown), the operation of the main sealing device starts, but at this time,
The seal 40 has already been loaded across the steel strips 50, 51 in the state shown in FIGS. 1 and 2, but the seal magazine device (not shown) is located behind the sealing device of the present invention, and the seal 40 is It is loaded from the rear. Now, when the air cylinder (not shown) enters the lowering operation, the piston rod 1 pushes down the links 4 and 4 to lower both the front part yaw 3a and the rear part yaw 3b, and at the same time, the side plates 2a and 2b descend and the side plates 2a and 2b descend. The seal retainer plate 21 directly connected to 2b presses and lowers the rear upper edge of the seal 40, and the rear upper edge portion cuts the subsequent steel strip 51 interposed on the cutter lower blade 30.
At this time, even if the seal 40 meshes with the cutter lower blade 30, since the front edge of the seal 40 is supported by the upper stopper 8a and the lower stopper 8b of the seal stopper to prevent "escape", the seal 40 is accurately The subsequent steel strip 51 is cut along the rear upper edge, and this "work" is an important point of the present invention. The piston rod 1 has front and rear jaws 3a,
3b is further lowered, and when the side plates 2a and 2b stop descending, the front and rear jaws 3a and 3b are also guided by the guide 70.
It has been released from the regulations of b and 70b, and front and rear joo 3
a and 3b rotate around the rotation pin 7 as a shaft to bend the hem portion of the seal 40 covering the overlapped portion of the steel strip 50 and the subsequent steel strip 51 so as to wind around the overlapped portion, and further cut the notch 60.
(See FIG. 5). Thus, the sealing operation is completed, the piston rod 1 starts to move upward, and each component is restored to its original state.

〔effect〕

As shown in FIG. 5, the steel strip and the seal sealed by the sealing device of the present invention are such that the cutting point 51a of the succeeding steel strip 51 is exactly aligned with the rear upper edge of the seal 40, which is to be bound. It does not cause outward warp to the body, and therefore does not damage the other binding object even when accumulating and handling relatively soft binding objects, and It is extremely safe and highly evaluated in terms of quality and safety.

[Brief description of drawings]

The drawings show one embodiment of the present invention. Fig. 1 is a side sectional view of the main part of the sealing device, Fig. 2 is a sectional view taken along the line AA of Fig. 1, and Fig. 3 is Fig. 1. 4 is a view on arrow B of FIG. 4, and FIG. 4 is a view on arrow C of FIG. FIG. 5 is a bird's-eye view of the steel strip and the seal sealed by the sealing device of the present invention. 1 ... Piston rod, 2a, 2b ... Side plate, 3a ... Front jaw, 3b ... Rear jaw, 4 ... Link, 5 ... Link pin, 6 ... Pin, 7 ... Rotating pin, 8a ...... Upper stopper, 8b ...... Lower stopper, 21 ...... Seal retainer plate, 25 ...... Stupper, 29 ...... Rotating pin hole, 30 ...... Cutter lower blade, 40 ...... Seal, 50 ...... Steel strip, 50a …… Steel strip tip, 51 …… Subsequent steel strip, 51a …… Steel strip cutting point, 60 …… Notch notch, 70a, 70b …… Guide, 75 …… Guide slot, 80 …… Pin slot.

Claims (1)

[Scope of utility model registration request] 1. A steel strip leading end locking device, a steel strip tightening device or a steel strip feeding and tightening device, a seal magazine device, and a sealing device, the steel strip being wound around a bundle to be tightened, and the steel strip overlapping portion being tightened. In the steel band automatic bundling machine for sealing and binding the bundled objects together with a seal, in the sealing device, a pair of joyos located at the forefront among a plurality of pairs of joyos for notching and notching the steel strip and the seal A seal stopper plate is added to the rear part of the rearmost end, and a seal retainer plate that can press the upper part of the rear end of the seal and a cutter that meshes with the upper end of the seal when the rear end of the seal is pressed. With a lower blade, when closing the steel strip and seal,
A sealing device for an automatic steel band binding machine, characterized in that the steel strip and the seal are configured so that the excess steel strip is cut to be aligned with the upper edge after the sealing just before making a notch.