JPS58170579A - Apparatus for treating papers - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a processing apparatus for paper sheets, particularly mail pieces, which are conveyed on a plurality of conveyors, and which combine and bundle them.

Figure 1 shows a conventional system for automatically sorting and bundling mail, and the technical background of the present invention will be explained using this system as an example. As shown in FIG. 1, the conventional mail sorting and bundling system includes a sorting machine 3 with automatic discharge, a merging elevator 4. It is composed of a bundling device 5 and a transfer mechanism that transfers mail between each device. The results are automatically sorted and accumulated in predetermined accumulation boxes 6. When the accumulated mail reaches a predetermined amount, it is dropped and transferred into packets on a plurality of conveyors 7 provided below each accumulation box 6, and is conveyed to the merging elevator 4 side, as shown in the figure. The merging elevator 4 is not loaded by the transfer mechanism.

It is transferred to the container 8.

In the merging elevator 4, a plurality of packets 8 are intermittently circulated in the vertical direction while maintaining a horizontal position, and mail items 1
is transferred into the packet 8 of the merging elevator 4 by a transfer mechanism (not shown), such as a pushing mechanism provided at a substantially intersection position of the plurality of transport conveyors 7 and the merging elevator 4, and after being conveyed, is pushed out. The packet 8 is taken out from the throat and transferred to the binding device 5 by a transfer mechanism (not shown).

As shown in Figures 23 to 2C, the binding device 5 is provided with a binding conveyor 9 that can be driven intermittently in the horizontal direction and above the binding conveyor 9, and is provided intermittently in the vertical direction depending on the amount of mail 1 accumulated. A drivable guide/clamp mechanism 11, a film reel 12 which is stretched outside the entrance of the binding conveyor 9, and at least one of which is movable up and down between the film 13 and the binding conveyor 9. An insertion mechanism 15 that inserts the mail item 1 into the pair of upper and lower heat seal/cut mechanisms 14 and the above-mentioned stretched binding film 13.
Consisted of. The mail 1 taken out from the merging elevator 4 is stretched by the insertion mechanism 15 as shown in Figure 2a, and is inserted into the binding film 13 L12b, and the upper and lower sides are held by the guide clamp machine #111 as shown in Figure 12. In this state, the heat seal/cut mechanism 14
After heat-sealing and cutting the binding film 13 at the end of the mail item 1, it is transferred to the binding conveyor 9Vc as shown in Figure @2C.
Therefore, it is discharged to the next process.

As described above, in the conventional mail merging and bundling system, the devices for merging and bundling are independent, resulting in a complicated system configuration and a large installation space. In addition, the number of processing steps that can be achieved by merging and bundling is large (and the timing adjustment between each device becomes complicated, making it unsuitable for high-speed processing.
Since the transfer mechanism between each ffl [11] is complicated, there is a high possibility that the mail pieces will collapse and jam during processing, and reliability problems are likely to occur.

Furthermore, in the conventional bundling device 5, after inserting the mail pieces 1 to be bound into the bundling film 13, heat sealing is performed on the end side of the mail pieces 1. Therefore, if the inserted mail pieces 1 are not aligned, the heat-sealed part The object 1 tends to protrude and the heat sealing becomes incomplete, and @ occurs when the binding film 13 is cut, jammed, etc.

Therefore, an object of the present invention is to solve the processing problems of the conventional merging and bundling system by simultaneously merging and bundling mail pieces conveyed by a plurality of transport conveyors of the 111EII pick-up and sorting machine. This eliminates the need for a mechanism to transfer mail between multiple devices, reducing processing steps, downsizing the device, and shortening processing time.In addition, the bundling mechanism is capable of bundling mail stacked horizontally. For film,
Insert vertically and heat seal the binding film after nine.
A highly reliable paper sheet processing device that eliminates the protrusion of mail from the heat-sealing part during bundling by processing the inserted stacked mail on the bottom side, thereby eliminating accidents such as cutting and jamming of the bundling film. The goal is to provide the following.

Next, the present invention will be described in detail with reference to the drawings showing one embodiment of the present invention. FIG. 3 is a schematic system diagram showing an implementation of the present invention. Since it is the same as that of the conventional example, the explanation will be omitted. The merging and binding port 11116 is a plurality of input ports 17 for merging the mail pieces 1 conveyed on the vi number of transport conveyors 7 of the automatic pick-up and sorting machine 3.
, an elevator mechanism 20 including a discharge mechanism 18 for discharging the bundled mail 2, and an input port 1 of the elevator mechanism 20.
7 and the discharge a hole 18.

Next, FIG. 4 shows the structure of a merging and binding device according to an embodiment of the present invention, and will be described in detail. @ In Figure 4, the elevator mechanism 20 has a plurality of comb-shaped loading plates 21, and the loading plates 21 are driven by a motor (not shown) or the like.
It is coupled to a chain 22 which is intermittently driven by cIl11, and is intermittently cyclically driven in the vertical direction by a guide 23 and guide rollers 24 while always maintaining a horizontal posture. A plurality of input ports 17 are provided at a predetermined interval at substantially intersecting positions with the transport conveyor 7 in the descending portion of the elevator mechanism 20, and each input port allows mail 1 on the transport conveyor 7 to be transferred to the elevator. In order to transfer onto the loading plate 21 of the mechanism 20, a known transfer mechanism 25 is provided which has a plate that is intermittently driven back and forth by an air cylinder or the like. Furthermore, the binding mechanism 19 is provided in the ascending portion of the elevator mechanism 20 and is comprised of a heat bath adhesive binding film 13, a heat seal/cut mechanism 14, and the like. A heat bath adhesive binding film 13 is stretched horizontally across the elevator mechanism 20 below the stop ti, 1M of the loading plate 21 of the elevator mechanism 20, and is attached to film reels 12 provided on both sides of the elevator mechanism 200. From there, the tension is continuously supplied via a plurality of guide rollers 26 installed parallel to the dancer's row, which maintain the tension at a predetermined level. The heat seal/cut mechanism 14 is provided between the stop plate of the loading plate 21 and the stretched binding film 13, and is evacuated near both sides of the elevator machine 20 when the loading plate 21 passes. However, when the loading plate 21 is stopped, it has a pair of left and right heaters and local mechanisms that are intermittently driven by a drive device such as an air cylinder so that they can be contacted at a substantially central position directly below the loading plate 21.

The ejection mechanism I8 is provided above the binding mechanism 19 at the normal position of the loading plate 21, and has a transfer fork 27 having a structure that engages with the comb-shaped portion of the loading plate 21. i of passing the loading plate 21
, the elevator mechanism 2 degrees is evacuated to the side, and the loading plate 21
When stopped, it is intermittently driven by an air cylinder or the like (not shown) so that it can move in the direction of the discharge conveyor 10 while engaging with the comb-shaped portion of the loading plate 21. In this embodiment, a guide plate (not shown) is provided along the passage route of the mail 1 to prevent the mail from collapsing.

Next, the operation will be explained based on the above embodiment with reference to FIG. 4 and FIGS. 5a to 5C showing the operation of the binding mechanism. In Fig. 4, elevator mechanism 2 is provided at equal intervals above and below.
Multiple conveyors 7 that can be driven intermittently according to the operation of
The postal items 1 that have been transported horizontally are stopped once at the input port 17 of the elevator mechanism 20, and then the stacking plate 21 of the elevator mechanism 20 stops at the input port 17, and then Mail 1? After confirming that there is no such thing, transfer 1! i! P loading plate 21 by structure 25
Moved above. When the mail items 1 are transferred onto the stacking plate 21, the elevator mechanism 20 is driven intermittently at regular intervals, and the mail items 1 from each conveyor belt 7 are combined by the same means as described above and transferred to the bundling mechanism. Transfer to section 19.

The mail 1 stuck to the binding mechanism 19 is as shown in FIG. 5a (accompanying the movement of the elevator mechanism 20).

It is inserted upward into the mourning binding film 13, which is stretched horizontally, and stops above the heat seal/cut mechanism 14. When the loading plate 21 stops, the heat-sealing/cutting mechanisms 14, which had been retracted on both sides of the elevator mechanism 20, start moving, as shown in FIG. 5b, and the loading plate 2
The binding film 13 lifted near the bottom of the mail piece 1 is brought into contact with the stacking plate 21 between them, and at the same time, the mail piece l is wrapped together with the stacking plate 21, and at the same time, the lower part of the binding film 13 is heat-sealed and fused to complete the binding. When the binding is completed, the heat seal/cut mechanism 14 is activated as shown in Figure @5C.
are retracted to both sides of the elevator mechanism 2o again, and the loading plate 21 moves to the ejection mechanism 18. The binding films I3 on the film reel 12 side are welded to each other at the same time as binding, return to the original tensioning position, and are used for the next binding. In the discharge mechanism 18 section, when the loading plate 21 of the elevator mechanism 20 stops, the transfer fork 27 that had been retracted to the side of the elevator mechanism 20 moves to engage with the comb-shaped portion of the loading plate 21, and then the bundled mail is removed. 2 together with the binding film 13 to the discharge conveyor 10 side, and the transfer is completed.

As is clear from the above explanation of the operation, the position of the ejection mechanism in the above embodiment may be any position after the binding mechanism and before the input port in the moving direction of the elevator mechanism.
It is also possible to provide the binding mechanism and the discharge mechanism at the same location. Further, the input port does not necessarily need to be provided in the descending portion of the elevator.

As explained above, the present invention combines and bundles mail items conveyed by multiple conveyors using the same device, making it possible to downsize the device, reduce processing steps, and process faster than traditional methods. In addition, the binding mechanism is a method that heat-seals the bottom side of the mail after inserting the mail into the binding film, so there is no cutting or jamming of the binding film at the heat-sealed part, and it is stable. Bonding is possible.

It should be noted that the present invention is not limited to processing mail items, but has similar effects on general paper sheets or flat stacks.

[Brief explanation of drawings]

Figures 28 to 2c are front views showing the operation of the conventional binding mechanism; Figure 3 is a schematic diagram showing an embodiment of the present invention;
FIG. 4 is a perspective view showing one embodiment of the present invention. Figures 5a to 5c are side views showing the operation of the binding mechanism in FIG. 4. In the figure, 1... Mail, 2... Marked/bound mail, 3... Automatic pick-up and sorting machine% 4.
...Merge elevator, 5...Bound cartwheel
6. River... Collection box, 7... Transfer conveyor, 8.
・Mark・Packet, 9... Bundling conveyor, 10・
...Discharge conveyor, 11... River, guide, clan 7' [I, 12... Film reel, 13...
...Exposed film% 14...Heat seal/cut mechanism% 15...Insertion mechanism, 16.
・Seal・Merge connection east cap L17・・・・Input port, 18・River・Discharge mechanism% 19・・・・Binding mechanism% 20・
...Elevator mechanism, 21...River/loading plate, 22 Chain, 23...Guide, 24...
... Guide roller, 25. Old... Transfer mechanism, 26.
... Guide roller, 27. River... Transfer fork, 2
8...Guide.

Claims (1)

[Claims] In a device that binds paper sheets conveyed on a plurality of vertically arranged conveyors and sends them to a discharge conveyor, a plurality of stacking plates are arranged at predetermined intervals while remaining substantially horizontal. a first transfer mechanism that transfers paper sheets conveyed by the conveyor onto a stacking plate of the elevator mechanism; A heat-sealable binding film is stretched horizontally so as to intersect with the passage line and is continuously supplied to wrap the mail items on the loading plate, and an elevator is provided near the stretching position of the binding film and when the loading plate passes through. A pair of left and right heat-on cut mechanisms that retract to both sides of the mechanism and weld and separate the binding film that wraps paper sheets on the loading plate when the loading plate is stopped, and paper sheets wrapped in the binding film. and a second transfer mechanism for transferring the paper products to the discharge conveyor.