JPH046959Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention involves inserting an envelope from the bottom side, transporting it to a predetermined position, folding the flap, gluing it or moistening it with water, and then feeding it back. The present invention relates to an envelope sealing machine that seals and discharges envelopes.

``Prior art'' This type of envelope sealing machine, for example,
There is one described in Publication No. 53598. The bottom of the envelope, which has been conveyed between the upper and lower conveyance rollers, collides with the stopper to temporarily stop the envelope, bend the flap and apply the glue, and then reverse the envelope and pass it through the upper and lower conveyance rollers. It is designed to be ejected while being pinched and sealed again.

``Problem to be solved by this invention'' In this envelope sealing machine, the stopper is able to move along the hole, but the amount of movement is small, and its purpose is to This is to finely adjust the folding position of the flap for different types of envelopes. envelopes), and could only seal envelopes of one specific size.

The present invention aims to enable sealing of multiple types of envelopes of different sizes in the same way, and to easily adapt to changes in the size of envelopes to be sealed.

"Means for Solving the Problems" In the present invention, this purpose is achieved by the following configuration.

The upper cover of the housing is provided with a guide elongated hole extending in the front-rear direction, which is the transport direction of the envelope. A stopper for regulating the conveyance of the envelope is attached to the lower side of the mounting base plate provided between the upper cover and the mounting base below the upper cover so as to be slidable back and forth. A knob shaft protruding upward from the upper cover is connected to the stopper through the guide elongated hole so that the stopper can be slid back and forth along the guide elongated hole, and a size adjustment knob is provided at the upper end of the knob shaft. At the same time, a threaded portion is provided at the lower end portion of the stopper so that the stopper can be tightened against the mounting base plate. Further, on the upper cover, an envelope size scale indicated by a pointer provided on the size adjustment knob and a folding position alignment mark for aligning the folding position of the flap of the envelope are displayed.

"Operation" According to the present invention, by operating the size adjustment knob to slide the stopper and aligning the pointer with the envelope size scale, the stop position at the bottom of the envelope (folding position of the flap) can be adjusted to the envelope. It can be adjusted to the appropriate position according to the standards. For non-standard envelopes, align the base end (fold line) of the flap with the fold alignment mark, and use the size adjustment knob to tighten the stopper until the pointer matches the bottom of the envelope. By sliding the envelope, the stop position at the bottom of the envelope can be adjusted to an appropriate position depending on the size of the envelope.

"Embodiment" An embodiment of the present invention will be described below in detail based on the drawings.

In FIG. 1, an envelope insertion opening 2 is formed on the front surface of a housing 1. As shown in FIG. The envelope 3 is inserted through the envelope insertion slot 2 with its bottom part first, guided by the insertion guide protrusion 2a inside the envelope 3, and is guided by the lower conveyance roller (drive roller) 4 and the upper pressure roller (driven roller). 5, and is sandwiched between them and sent onto a mounting table 6 installed horizontally within the housing 1. At this time, the envelope 3 is pressed from above by the envelope pressing rod 7 which has a spring property. The envelope 3 placed on the mounting table 6 is moved by a pair of auxiliary pressing rollers 8.
While being pressed onto the mounting table 6 by the rollers, the sheet enters between a pair of relay rollers 9 (driving rollers) and a pair of pressing rollers (driven rollers) 10, is sandwiched between them, and is further conveyed in the same direction.

The rotation of the transport motor 11 is transmitted to the transport roller 4 via a belt 12, and the transport roller 4
The rotation of the pressure roller 10 is transmitted to the relay roller 9 via the belt 13, and the rotation of the pressure roller 10 that follows this is transmitted to the auxiliary pressure roller 8 via the belt 14, and these four types of rollers 4, 8, 9, 10 are simultaneously rotated by a transport motor 11. Note that this conveyance motor 11 rotates normally when the envelope 3 is inserted and conveyed as described above.

The pair of pressure rollers 10 are supported by a swing frame 16 that swings up and down about a shaft 15 .
This swing frame 16 is connected to a plunger 18 of an electromagnet 17, and when this electromagnet 17 is turned on, the pressing roller 10 is pressed against the relay roller 9. When the envelope 3 is inserted as described above, this electromagnet 17 is turned on, and the envelope 3 is pressed against the pressure roller 10.
is pressed against the relay roller 9 by. The auxiliary pressing roller 8 is pivotally supported by a swinging arm 19 that is pivotally supported by a swinging frame 16, and its pressing force can be adjusted by changing the number of weight plates 20 attached to the swinging arm 19.

The envelope 3 sandwiched between the relay roller 9 and the pressure roller 10 as described above enters between the pressure plate 21 mounted on the mounting table 6 so as to be vertically movable and the mounting table 6, 21, the bottom collides with the stopper 22 and stops.

This stopper 22 is composed of an inverted L-shaped plate, and can slide along the rail as shown below on the lower surface of the mounting base plate 24 installed horizontally under the rear upper cover 23 of the housing 1. It is installed like this. That is, the mounting base plate 24 is provided with a guide slot 25 that is long in the front-rear direction (conveying direction of the envelope 3), and by fixing the stud 26 to the horizontal portion 22a of the stopper 22 through the guide slot 25, the stopper 22 is slidable along the guide slot 25. This stopper 22 is designed to restrict its sliding at an arbitrary position, and its structure will be described later. In addition, stopper 22
The lower end of the vertical portion 22b is guided by a plurality of guide slots 27 provided in the mounting table 6.

A U-shaped sensor mounting plate 28 is fixed to the rear of the stopper 22. A sensor 29 is attached to the sensor mounting plate 28, and a sensor operating lever 31 for turning on and off the sensor 29 is rotatably supported on the bracket 30 thereof. The sensor operating lever 31 is biased by a spring 32 so that its free end 31a projects forward of the vertical portion 22b of the stopper 22.

Therefore, just before the bottom of the envelope 3 collides with the stopper 22 as described above, the sensor operating lever 31 is rotated by the bottom from the solid line state in FIG. 1 to the chain line state, and the sensor 29 is turned on. When this is turned on, the conveyance motor 11 is stopped, the electromagnet 17 is turned off, and the conveyance of the envelope 3 is stopped. At the same time, the bender operating motor 33 is driven and its rotation is transmitted to the cam disk 35 via the belt 34.
The bender, application member 37, and flap guide 38 are operated as follows.

Bender 36, application member 37, flap guide 3
Reference numeral 8 indicates respective shafts 39, 40, 41 to which the rotation of the cam disk 35 is transmitted by a transmission mechanism (not shown).
is fixed to. When the bender actuating motor 33 rotates, the bender 36 rotates downward and the fitting portion 36a at its free end engages the flap 3a of the envelope 3 (FIG. 2).
While pressing down, bend the protrusion 42 on the front end of the mounting table 6.
The proximal end of the flap is held between the bending protrusion 42 and bent. At the same time, application member 3
7 rotates downward to immerse its free end into the glue in the glue container 43, and then rotates upward to apply glue to the back surface of the folded flap 3a. At this time, the flap guide 38 is retracted and rotated downward. When glued in this manner, the bender 36 and the flap guide 38 are rotated back.

When the bender actuating motor 33 stops, the conveying motor 11 rotates forward and at the same time the electromagnet 17 is turned on, and the envelope 3 is conveyed in the reverse direction. By then, the flap guide 38 has returned to its original position above, so the flap 3a bent as described above comes into contact with the flap guide 38 and is slightly lifted.
It overlaps the back of the envelope itself and is lightly sealed. Then, the envelope 3 is tightly sealed again by being sandwiched between the conveying roller 4 and the pressing roller 5, and is ejected from the envelope insertion opening 2 to the outside of the housing 1 by these rollers 4 and 5.

Next, a mechanism for adjusting the position of the stopper 22 will be explained.

This stopper 22 is connected to a size adjustment knob 45 on the rear upper cover 23 via a knob shaft 44. The knob shaft 44 projects upward from a guide slot 46 provided in the rear upper cover 23.
The stopper 22 is also guided by this elongated guide hole 46 so that it can slide back and forth. In addition, the knob shaft 44
The protruding threaded portion 44a at the lower end of is screwed into the screw hole of the horizontal portion 22a of the stopper 22 through the guide slot 25, and when the size adjustment knob 45 is turned clockwise, the horizontal portion 22a of the stopper 22 is screwed into the screw hole of the horizontal portion 22a of the stopper 22. 2
4, and the stopper 22 is tightened at an arbitrary position. If the size adjustment knob 45 is turned counterclockwise to release the tightening, the stopper 22 can be slid together with the size adjustment knob 45.
A vertically long indicator piece 47 is connected to the spring 4 on the knob shaft 44.
8, it is biased downward and installed. A pointer 49 located outside the rear upper cover 23 is horizontally protruded from the upper end of this indicator piece 47, and the lower end is fitted into the guide slot 25 of the mounting base plate 24 to prevent rotation. There is.

On the other hand, an envelope size scale plate 50 is fixed to the upper surface of the rear upper cover 23 in parallel with the guide elongated hole 46. This envelope size scale plate 50 has a stopper 2.
In order to adjust the position of 2 to the size of the envelope, a scale 51 is provided to indicate the position in units of, for example, 1 mm. Among the scales, the scales corresponding to standard size envelopes are thicker and longer, and for identification purposes, characters such as "cho 3", "cho 4", "kaku 8", "kaku 5", etc. The numbers are displayed.

Therefore, for an envelope of a standard size, the position of the stopper 22 is determined by aligning the pointer 49 with the corresponding scale 51, and when an envelope of that size is stopped by the stopper 22 as described above,
The base end of the flap 3a coincides with the tip of the bent protrusion 42 of the mounting table 6.

Further, on the upper surface of the front upper cover 52 of the housing 1, a linear bending alignment mark 53 is displayed at a position corresponding to the tip of the bending protrusion 42 and parallel thereto. In the case of a non-standard envelope, take out one of the envelopes and align the base end of the flap 3a with this fold alignment mark 53, as shown by the chain line in FIG.
After sliding the stopper 22 to the position where the pointer 49 corresponds to the bottom of the envelope 3, the stopper 22 is tightened as described above to position it.

"Effects of the invention" According to the invention, the stopper that determines the stop position for envelope conveyance can be slid back and forth freely along the guide slot provided in the upper cover of the housing by operating the size adjustment knob. Since it can be held tightly in the position, it can be used with various envelopes of different sizes. Furthermore, the adjustment can be easily and quickly performed by aligning the pointer of the size adjustment knob with the envelope size scale on the top cover, then rotating and tightening the screw portion. For non-standard envelopes, align the base end (fold line) of the flap with the fold alignment mark on the top cover, and then use the size adjustment knob to tighten the stopper until the pointer aligns with the bottom of the envelope. By sliding the bottom of the envelope, the stop position at the bottom of the envelope can be easily adjusted to an appropriate position according to the envelope size.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal side view, Fig. 2 is a partially cutaway plan view, and Fig. 3 is a partially cutaway front view of the portion where the envelope is conveyed in the middle of the housing. be. 1...Housing, 3...Envelope, 3a...Flap, 6...Placement stand, 22...Stopper, 23...
... Rear upper cover, 24 ... Mounting base plate, 44 ... Knob shaft, 44a ... Threaded part, 45 ... Size adjustment,
46... Guide slot, 49... Pointer, 50... Envelope size scale plate, 52... Front upper cover, 53...
Fold alignment mark.

Claims (1)

[Scope of utility model registration request] The envelope is inserted into the housing 1 with the bottom first, and the envelope is conveyed on the mounting table 6 until the bottom hits the stopper 22. After the flap is bent and glued or moistened with water, the envelope is returned to the housing 1. 1, the upper cover 23 of the housing 1 is provided with a guide elongated hole 46 extending in the front-rear direction, which is the conveying direction of the envelope, and the upper cover 23 and the above-mentioned placing table 6 below the upper cover 23 are provided with The stopper 22 is attached to the lower side of the mounting plate 24 provided between the upper cover 22 and the upper cover 22 through the guide elongated hole 46.
A knob shaft 44 protruding upward is connected to enable the stopper 22 to slide back and forth along a guide elongated hole 46, and a size adjustment knob 4 is attached to the upper end of the knob shaft 44.
5, and the above-mentioned stopper 22 is provided at the lower end.
A screw portion 4 that can be tightened to the mounting plate 24
4a, and on the upper cover of the housing,
An envelope sealing machine characterized by displaying an envelope size scale 50 indicated by a pointer 49 provided on a size adjustment knob 45 and a folding position alignment mark 53 for aligning the folding position of the flap of the envelope. .