JPH06226887A - Gluing device - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to apply a desired amount of glue to a desired position of the flap 1a of the running envelope 1. [Structure] A glue nozzle 11 is arranged at a traveling position of a flap 1a of an envelope 1, and a dispenser 12 is provided in the glue nozzle 11.
To enable the supply of a desired amount of glue, and to detect the position and transport speed of the envelope being transported, and a transport speed detection device, and glue that outputs a glue command based on the detection information. A monitor is provided to dispense a desired amount of glue when the desired position of the envelope comes under the glue nozzle 11.
And the glue is applied to the envelope.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gluing device for gluing an object to be glued such as a flap of an envelope, and particularly to applying a glue even when the traveling speed of the object to be glued changes. Gluing device capable of

[0002]

2. Description of the Related Art Conventionally, at banks, credit companies, etc., various kinds of information have been sent in sealed letters to customers. A window opening envelope is generally used as an envelope used for such communication, and a work of putting a document in which various information is recorded and sealing the envelope is mechanized. In that case, the adhesive was previously applied to the flap of the envelope in a dried state, and water was applied to the adhesive to develop the tackiness and adhere.

[0003]

Recently, a method has been developed in which a large number of addresses are printed on a long form instead of a window opening envelope, individual envelopes are created from the form, and the envelope is used. . In this case, it is not possible to apply glue to the flaps of the created envelope in advance.Therefore, it is necessary to apply glue to the flaps immediately after putting the specified documents in the envelope and immediately before sealing. became.

However, the known pasting device is
It is used to continuously apply glue to a long film or sheet that is running continuously with a roller or a brush. It turned out to be a problem. That is, since the envelopes to be sealed are sent at intervals,
When a roller or a brush is used as a means for applying glue to the flap, the roller or the brush must be moved to a position where it comes into contact with the flap of the envelope only when the envelope is sent, and the mechanism becomes complicated. Become. Further, the roller and the brush cannot control the gluing amount and the gluing position in detail, and in particular, when the conveying speed of the envelope is changed, the gluing amount cannot be kept constant.

The present invention has been made in view of the above problems, and it is possible to apply the glue uniformly and to a desired position even on an object to be glued which is intermittently fed like an envelope. It is an object of the present invention to provide a gluing device that can be used.

[0006]

DISCLOSURE OF THE INVENTION The present invention, which has been made to achieve the above object, is provided with a conveying means for conveying an object to be pasted and a tip to be placed close to the object to be pasted conveyed by the conveying means. And a glue nozzle for applying glue to the glued object, a dispenser for supplying the glue to the glue nozzle, a dispenser controller for operating the dispenser, and a glue nozzle for the glued object conveyed by the conveying means. A position and a conveyance speed detecting device for detecting a position and a conveyance speed; and a gluing monitoring device for controlling the dispenser controller based on initial input information and the information from the position and the conveyance speed detecting device. The gist is the gluing device.

[0007]

With the gluing device having the above structure,
Since the dispenser that can control the supply timing etc. is used to supply the glue to the glue nozzle, and the glue supplied from the dispenser is discharged onto the object to be glued by the glue nozzle, the glue from the dispenser is used. By shortening the supply time, it is possible to apply the glue in a dot shape to the object to be glued, and by increasing the glue supply time, it is possible to apply the glue in a continuous state. The application amount can be determined by adjustment, and the gluing position can be controlled by controlling the supply timing. In this way, fine control of gluing is possible. Further, the position / conveyance speed detecting device detects the position and the conveying speed of the object to be glued conveyed by the conveying means with respect to the glue nozzle, and the glueing monitoring device controls the dispenser controller using the information. It is possible to apply a desired amount of glue to a desired position on the object to be glued, easily deal with a change in the transport speed, and perform uniform glueing.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention shown in the drawings will be described below. FIG. 1 is a schematic configuration diagram of a gluing device according to an embodiment in which the present invention is applied to gluing a flap of an envelope. In FIG. 1, reference numeral 1 denotes an envelope which is an object to be glued and has a flap 1a to which glue is applied. Reference numeral 2 is a support plate that supports the moving envelope 1, and 3 is a conveying unit that conveys the envelope 1. The transport means 3 includes an endless chain 4, a plurality of chucks 5 (only one is shown) for gripping envelopes, which are attached to the chain 4 at a constant pitch, a chain wheel 6 on which the chain 4 is hung, and a drive mechanism. The motor 7 and the cam mechanism 8 for converting continuous rotation of the drive motor 7 into intermittent rotation and transmitting the intermittent rotation to the chain wheel 6 are provided. When the drive motor 7 continuously rotates, the chain wheel 6 rotates intermittently. The envelope that is gripped by the chuck 5 is intermittently transported while repeatedly transporting and stopping.

Reference numeral 11 denotes a glue nozzle for dispensing and applying glue to the flap 1a of the envelope 1 passing over the support plate 2, and having a circular or slit-shaped discharge hole at its tip. Reference numeral 12 is a dispenser for supplying glue to the glue nozzle 11. Although the glue nozzle 11 is attached to the dispenser 12 in the drawing, the glue nozzle 11 and the dispenser 12 are connected by a flexible tube, and only the glue nozzle 11 is suitable. The holding unit may be arranged at a predetermined position where glue is applied to the envelope. Alternatively, the glue nozzle 11 may be held by an appropriate moving means, lowered only to a position where glue can be applied to the envelope only when the envelope passes, and retracted upward when the envelope does not pass. Further, a plurality of glue nozzles 11 may be provided. The mounting position of the glue nozzle 11 is determined between the stop position and the stop position of the envelope that is intermittently fed. Therefore, the envelope passing under the glue nozzle 11 is always running, and at that position. There is no stopping. With this configuration, even when the envelope is running intermittently while repeatedly running and stopping, the speed of the envelope when passing under the glue nozzle 11 becomes relatively uniform, so that the glue supply amount can be easily controlled. And is preferable.

A glue tank 15 is connected to the dispenser 12 via a connecting pipe 14, and an air pressure pipe 17 is connected to the glue tank 15 via a pressure adjusting valve 16 so that the glue tank 15 has a predetermined size. Air pressure is applied. Thus, the dispenser 12 is supplied with glue at a constant pressure. Further, a dispenser controller 20 that operates the dispenser 12 is connected to the dispenser 12. The dispenser controller 20 is capable of controlling the supply flow rate, supply time, supply start timing, etc. of the glue that the dispenser 12 supplies to the glue nozzle 11. Therefore, the dispenser 12 is operated by the dispenser controller 20. It is possible to supply a minute desired amount of glue at a desired timing.

FIG. 2 shows an example of a state in which glue is supplied from the dispenser 12 operated by the dispenser controller 20. As can be seen clearly from FIG. 2, the dispenser 12 supplies glue in a pulse form, and the supply flow rate q, supply times t ₁ , t ₂ , and supply start timings T ₁ , T _{2 at that time} are arbitrarily set by the dispenser controller 20. Controllable. Note that the supply flow rate q is normally used at a constant level, and the glue supply amounts Q ₁ and Q ₂ as a whole are controlled by controlling the supply times t ₁ and t ₂ . Here, instead of controlling the supply times t ₁ and t ₂ to control the supply amount, the supply amount q to be supplied by the dispenser 12 in one operation in the shortest time (called one shot) is set, and Supply quantity Q ₁ , Q
₂ may be controlled. As the dispenser 12 and the dispenser controller 20, it is preferable that a very small amount of glue can be promptly supplied, and the supply amount q in one shot is
About 0.1 × 10 ^-3 cc and response speed is 10 mse
It is preferably about c. As the dispenser 12 and the dispenser controller 20, those having such characteristics may be selected from known ones and used.

Drive shaft 2 driven by drive motor 7
1 is provided with an encoder (or tacho generator) 22, which outputs a signal according to the rotation speed and outputs the signal to the position / conveyance speed detection device 23. The position / conveyance speed detection device 23 detects the position and the conveyance speed of the envelope passing under the glue nozzle 11 with respect to the glue nozzle 11, based on a signal from the encoder 22. Line 1A in FIG. 3 indicates the envelope position (the position of the envelope below the glue nozzle 11) with respect to the rotation phase θ of the drive shaft 21. Here, the drive shaft rotation phase θ is 0 to 360 ° for one cycle in which one envelope is intermittently conveyed by one pitch. Since the chuck 5 that conveys the envelope 1 is attached to the chain 4 at a constant pitch, the rotational phase θ and the envelope position are constant for every envelope that is conveyed, and depending on the characteristics of the cam mechanism 8. Determined. The position / conveyance speed detection device 23 detects the rotation phase θ of the drive shaft from the signal from the encoder 22, thereby detecting the envelope position from the relationship of FIG. 3, and also the cycle of one cycle from the rotation speed of the drive shaft. Then, the conveying speed of the envelope is detected.

In FIG. 1, the dispenser controller 20 has a gluing monitoring device 25 for outputting a gluing command to the dispenser controller 20.
Are connected, and the position information of the envelope and the transport speed information of the envelope from the above-mentioned envelope position and transport speed detection device 23 are input. This gluing monitoring device 25
If the operator inputs initial information such as the gluing method (continuous gluing or spot gluing), the gluing range designation, and the gluing amount,
Based on the initial information, the position information of the envelope from the position / conveyance speed detection device 23 and the conveyance speed information, a function of issuing a gluing command to the dispenser controller 20 and supplying the glue from the dispenser 12 to the glue nozzle 11 is provided. ing.

Next, the operation of the gluing device having the above structure will be described. The envelope 1 is intermittently conveyed by the conveying means 3, and the flap 1a of the envelope 1 intermittently passes under the glue nozzle 11. The envelope position and the transport speed at this time are detected by the position and transport speed detection device 23, and are sent to the gluing monitoring device 25 as position information and transport speed information. The gluing monitoring device 25 issues a gluing command when a predetermined position of the envelope comes under the glue nozzle 11 based on the initially input information. The dispenser controller 20 is the dispenser 12
Is controlled to supply a predetermined amount of glue. Thus, a predetermined amount of glue is applied at a predetermined position to the envelope passing under the glue nozzle 11.

For example, as shown in FIG. 3, a fixed amount Q of glue 3 is applied to three positions P ₁ , P ₂ and P ₃ of the flap 1a of the envelope 1.
When 0 is added, this condition is input to the gluing monitoring device 25 as initial information in advance. The gluing monitoring device 25 positions and positions the timings (rotational phases θ ₁ , θ ₂ , θ _{3 of the} drive shaft) at which the positions P ₁ , P ₂ , P _{3 to} which the glue should be applied pass under the glue nozzle 11. Transport speed detection device 23
Based on the information from the above, the gluing command is issued to the dispenser controller 20 to supply a fixed amount of glue to the dispenser controller 20 at the timing. As a result, the dispenser 12 supplies a fixed amount Q of glue to the glue nozzle 11 at a predetermined timing,
The glue nozzle 11 discharges the glue and the flap 1a of the envelope 1
Given to. Thus, the desired amount of glue 30 is applied to the desired position of the flap 1a.

Since the dispenser 12 and the glue nozzle 11 have a delay in the glue discharge, the gluing monitor 25
It is preferable to adjust the timing of outputting the gluing command in anticipation of the response delay, and it is preferable to have that function.

Although the above embodiment has described the case where the glue is applied to the flap of the envelope, it is needless to say that the present invention can be applied to an object to be glued other than the envelope. Further, the object to be glued is not limited to being intermittently conveyed, but may be continuously conveyed.

[0018]

As described above, according to the present invention, a glue nozzle is provided at a position through which an object to be glued passes, the glue is supplied to the glue nozzle by using a dispenser, and the dispenser is used to glue the glue. With the configuration that controls based on the information of the position of the attached object and the conveying speed, it is possible to apply a desired amount of glue to the desired position of the object to be pasted, and to perform spotting, continuous application, and gluing. Fine control such as range regulation is possible, and the timing of glue supply is controlled corresponding to the speed change at the time of starting and stopping the transportation means of the object to be glued, or the speed change in the middle. This has the effect that uniform gluing can be performed and various controls can be performed.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a gluing device according to an embodiment in which the present invention is applied to gluing an envelope flap.

FIG. 2 is a graph showing a glue supply characteristic by a dispenser.

FIG. 3 is a graph showing the relationship between the rotational phase of the drive shaft and the envelope position, and a graph showing the glue application position on the envelope and the operation timing of the dispenser in the above embodiment.

[Explanation of symbols]

 1 Envelope 1a Flap 2 Support Plate 3 Conveying Means 4 Chain 5 Chuck 7 Drive Motor 8 Cam Mechanism 11 Glue Nozzle 12 Dispenser 15 Glue Tank 21 Drive Shaft 22 Encoder

Claims (1)

[Claims] 1. A transporting means for transporting an object to be glued, a glue nozzle which is disposed with its tip close to the article to be glued transported by the transporting means, and which applies glue to the material to be glued, A dispenser that supplies glue to the glue nozzle, a dispenser controller that operates the dispenser, a position and a transport speed detection device that detects a position and a transport speed of the object to be glued transported by the transport means with respect to the glue nozzle, and an initial stage. A gluing device, comprising: a gluing monitoring device that controls the dispenser controller based on input information and information from the position and transport speed detection device.