JPH03186565A - Form joining system - Google Patents

Abstract

PURPOSE:To prevent joint deflection between a plurality of continuous forms by setting the interval of the pins which are set oppositely, having the joint device of each pin feeding device on the upstream side and downstream side interposed, to the integer times of the standard pitch of the marginal punches which the continuous form is provided with. CONSTITUTION:The opposite pin interval L between an upstream side pin tractor 15 and a downstream side pin tractor 16 is set to the no-integer times of the standard pitch P of the marginal punches 1 form on the continuous forms 14A - 14D. Accordingly, a plurality of continuous forms 14A - 14D set between both the tractors 15 and 16 are provided with each slackening. Accordingly, even if the pitch error of the marginal punches 1 exists in a part in the longitudinal direction of a certain form during the operation of a gathering device 12, the pitch error is markedly smaller than the pin interval L, and the slackening is kept. Accordingly, the marginal punches of all the continuous form are perfectly engaged with the pins 15A and 16A, and no play is generated, and the joining deflection in the longitudinal direction is not repeated, when the continuous forms are joined by a pressing roller 17.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a foam joining system suitable for use in a merging line, a packaging line, etc.

[Prior Art] Conventionally, a bonding device installed on a feed line, etc., feeds a plurality of continuous forms having marginal punches that are continuous in the longitudinal direction in an overlapping state along a feed line, such as on a joining line. Form joining systems are used to join these continuous forms together.

At this time, in the form joining system, a pin tractor is installed in the feeding line, and the rotation of the pin tractor that locks and rotates the marginal punch of each continuous form in the overlapping state allows the continuous forms to be connected. It is possible to feed the foams at the same tying.

For example, on the first joining line, the individual forms constituting each continuous form fed at the same timing by the above-mentioned pin tractor are joined by the above-mentioned stacking platform device while maintaining their overlapping state to form a unit. Create a form.

[Problem to be Solved by the Invention] However, the conventional foam joining system merely disposes the pin camel only upstream of the joining device in the feed line. Therefore, the plurality of continuous forms sent from the pin camel toward the joining device are joined by the joining device under conditions where the feeding direction of each of the forms is no longer restricted. Therefore,
When some of the plurality of continuous forms in the overlapping state are slightly meanderingly shifted in the direction perpendicular to the line, the continuous forms are joined to each other with a lateral shift inherent therein.

Therefore, in order to prevent the above-mentioned lateral shift, the inventor of the present invention considered arranging pin camels on each of the upstream and downstream sides of the joining device. Then, the following experimental results (■) were obtained. In addition, during the experiment, the distance between pins facing each other across the joining device of both pin tractors was set to an integral multiple of the reference pitch of the marginal punch provided in the continuous form.

■ Plural continuous forms in a superimposed state are joined by a joining device within the range in which the feeding direction of each form is regulated by the upstream pin camel and the downstream pin camel to prevent lateral deviation during joining. It can be prevented.

■If there is no error in the pitch of the marginal punch provided in each continuous form, each continuous form is fed without slack between the upstream pin camel and the downstream pin tractor.

However, if there is a pitch error in the marginal punch in a part of a certain form in the longitudinal direction, in a form with a short pitch, the marginal punch will collapse between the upstream pin tractor and the downstream pin tractor. Moreover, due to this error, the bonding deviation in the longitudinal direction of the form also occurs.

That is, when the upstream pin tractor and the downstream pin tractor are arranged as described above, although it is possible to prevent lateral slippage as described in (2) above, it is possible to prevent joint displacement in the longitudinal direction as in (2) above. Admitted.

SUMMARY OF THE INVENTION An object of the present invention is to prevent misalignment between a plurality of continuous forms when they are fed and joined together.

[Means for Solving the Problems] The present invention provides a form joining system in which a plurality of continuous forms each having marginal punches continuous in the longitudinal direction are fed and the continuous forms are joined to each other by a joining device. On the upstream side and the downstream side, the f type is entered into the marginal punch of each superimposed form and selling form.

A marginal punch is provided with an upstream pin feeding device and a downstream pin feeding device that feed the continuous forms, and the distance between the pins facing each other across the joining device of both pin feeding devices is set between the continuous forms. The pitch is set to a non-integer multiple of the reference pitch.

[Action Co. According to the present invention, there is the following effect (2).

(2) An upstream pin feeding device and a downstream pin feeding device were provided before and after the joining device. Therefore, a plurality of continuous forms in an overlapping state are joined by the joining device within the range in which the feeding direction of each of these forms is regulated by the upstream pin feeding device and the downstream pin feeding device, and when joining can prevent lateral displacement.

■The opposing pin spacing between the upstream pin feeding device and the downstream pin feeding device was set to a non-integral multiple of the reference pitch of the marginal punch provided in the continuous form. As a result, the plurality of continuous forms between the two pin feeding devices each have slack.

Even if there is a pitch error of the marginal punch in a part of the longitudinal direction of a certain form, the pitch error is extremely small compared to the opposing pin spacing of the above-mentioned two pin feeding devices, so the form with a longer pitch Even short forms do not lose the above-mentioned sagging condition. For this reason, the marginal punches of all forms are completely engaged with the pins and have no play, and the deviation in their pitch lengths may extend to the earlier stage (upstream side) of the upstream pin feeding device. Without,
It is absorbed between the marginal punches, and when these continuous forms are joined by a joining device, there is no repeated joining displacement in the longitudinal direction.

By means of (1) and (2) above, when a plurality of continuous forms are fed and joined together, it is possible to prevent joint deviation between the forms.

[Embodiment] Fig. 1 is a schematic diagram showing an example of a collation line to which the present invention is applied, Fig. 2 is a schematic diagram showing the setting state of an upstream pin tractor and a downstream pin tractor, and Fig. 3 is a schematic diagram showing an example of a collation line to which the present invention is applied. FIG. 2 is a schematic diagram showing a plan view of FIG. 2;

As shown in FIG. 1, the 1-coupling line 10 includes a foam feeding device 11 and a 7-coupling device 12.

The foam feeding device 11 arranges first to fourth foam feeding sections 13A to 13D in series, and continuously feeds out a plurality of first to fourth continuous foams 14A to 14D, respectively.

Specifically, the form feeding device 11 includes a marginal punch 1 that is continuous in the longitudinal direction, and continuous forms 14A to 1 that are provided with perforations at intervals in the longitudinal direction.
4D can be pulled out by the rotation of an upstream pin tractor 15 and a downstream pin tractor 6 which are locked to the marginal punches 1 and rotated. pin tractor 15.1
6 will be described in detail later.

Then, the foam feeding device 11 feeds each continuous foam 14
A to 14D are sequentially fed in an overlapping state on a feeding line.

The 7-fold device 12 is capable of collating individual forms constituting each of the continuous forms 14A to 14D fed out from each of the form supply units 13A to 13D, by overlapping each other to form a unit form. Specifically, the collating device 12 uses a pair of pressing rollers 17 to press the individual forms stacked on top of each other. 18 is a servo motor that drives the pressure roller 17, and 19 is a rotary encoder that is interlocked with the output shaft of the servo motor 18. In addition, each continuous form 14A
~14D includes pressure-sensitive glue to be pressed by the pressure roller 17.

Further, the foam supply device 11 includes each foam supply section 13A.
~13I) has a form guide device 21.

The collating device 12 is provided with the above-mentioned upstream opening pin tractor 15 and downstream pin tractor 16, respectively, on the upstream and downstream sides of the pressure roller 17 in the feeding line. Each pin tractor 15, 16 comprises a pin 15A, 16A that engages the marginal punch 1 of each continuous form 14A to 14D in a superposed state,
The continuous forms 14A-14D are fed.

In addition, each pin tractor 15, 16 has an oblong belt 15.
B, 16B are provided with pins 15A, 16A at a plurality of positions in the circumferential direction, and a plurality of pins 15 are simultaneously attached to a plurality of adjacent marginal punches 1 in each continuous form +4A-14D.
A, 16A can be engaged.

Furthermore, as shown in FIGS. 2 and 3, the combining device 10 adjusts the spacing between pins facing each other across the pressure roller 17 of both pin tractors 15 and 16 by using marginal punches provided in each of the continuous forms 14A to 14D. It is set to a non-integer multiple of the reference pitch p of 1.

Unlike the present invention, FIG. 2(A) shows a double pin tractor 15.
The 16 pin spacing LO is an integral multiple of the reference pitch p of the marginal punch 1 provided in each of the continuous forms 14A to 14D. In contrast, in FIG. 2(B), according to the present invention, the pin spacing is a non-integer multiple of the reference pitch p of the marginal punch 1, and this pin spacing is set as shown in FIG. 2(A).
This is an example in which the pin spacing LO is shortened by the shift amount δ.

Next, the operation of the above embodiment will be explained.

(2) An upstream pin tractor 15 and a downstream pin tractor 16 are provided before and after the pressure roller 17.

Therefore, a plurality of continuous forms 14 in superposition
A to 14D are joined by the pressure roller 17 within the range in which the feeding direction of each of these forms is regulated by the upstream pin tractor 15 and the downstream pin tractor 16, and lateral shift during joining can be prevented.

(2) The spacing between the opposing pins of the upstream pin tractor 15 and the downstream pin tractor 16 was set to a non-integral multiple of the reference pitch p of the marginal punch (2) provided in the continuous forms 14A-14D. As a result, both pin tractors 15.
The plurality of continuous forms 14A to 14D between 16 are
As shown in FIG. 2(B), each has slack. Furthermore, if the distance between the opposing pins 11ALO of both pin tractors 15 and 16 is set to an integral multiple of the reference pitch p of marginal punch 1, then both pin tractors 1
Continuous forms between 5.16 and 5.16 do not have sag as shown in FIG. 2A unless there is an error in their pitch lengths.

Even if there is a pitch error of the marginal punch 1 in a part of a certain form in the longitudinal direction during operation of the combining device 12 of the above embodiment, the pitch error will be Since it is extremely small compared to the pin spacing, both longer and shorter pitch forms do not lose the above-mentioned sagging condition. Therefore, the marginal punches 1 of all the continuous forms 14A to 14D are completely engaged with the pins 15A and 16A and have no play, and the deviation of their pitch lengths is caused by the upstream pin tractor 15.
The continuous forms 14A to 14D are not repeatedly dislocated in the longitudinal direction when they are joined by the pressure roller 17.

Due to the above, a plurality of continuous forms 14A to 14D are formed.
When the foams 14A to 14D are fed in an overlapping state and joined together, it is possible to prevent joint deviation between the foams 14A to 14D.

Note that the present invention can also be applied to packaging systems and the like.

[Effects of the Invention] As described above, according to the present invention, when a plurality of continuous forms are fed and joined together, it is possible to prevent joining deviation between the forms.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram showing an example of the 7th line to which the present invention is applied, Fig. 2 is a schematic diagram showing the setting state of the upstream pin camel and the downstream pin camel, and Fig. 3 is a plan view of Fig. 2. FIG. DESCRIPTION OF SYMBOLS 1... Marginal punch, 14A-14D... Continuous form, 15... Upstream pin tractor, 16... Downstream pin tractor, 17... Pressure roller.

Claims (1)

[Claims] (1) In a foam joining system that feeds a plurality of continuous foams equipped with longitudinally continuous marginal punches and joins them together using a joining device, there is a An upstream pin feeding device and a downstream pin feeding device are provided, each having a pin that engages the marginal punch of each continuous form in a mating state and feeding the continuous forms, and a joining device for both the pin feeding devices is provided. A foam joining system characterized in that the interval between opposing pins is set to a non-integral multiple of the reference pitch of a marginal punch provided in the continuous foam.