JP2887473B2 - Gluing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a gluing device.

[0002]

2. Description of the Related Art Conventionally, for example, in a gluing apparatus for a corrugator, as a method for associating both end positions of the paste of a paste roll with both end positions of paper such as a running liner or a core, a photoelectric tube or the like is used. Then, the pair of reversible rotary motors are driven by this signal to move the pair of glue dams, and the both ends of the glue of the glue roll correspond to the both ends of the paper. In particular, when the paper speed is increased, the positions of both ends of the glue are widened, and it is difficult to completely correspond to the both ends of the paper only by moving the glue dam. Therefore,
To solve this problem, Japanese Patent Publication No. 60-58019 discloses a method of correcting the movement position of the glue dam with respect to both end positions of the paper based on the results of the effects of the viscosity of the glue and the speed of the paper. A device and a plurality of photoelectric tubes are arranged to correct the moving position of the glue dam according to the speed of the paper.
An apparatus described in Japanese Patent Publication No. 33 has been considered. However, in the apparatus disclosed in Japanese Patent Publication No. Sho 60-58019, data based on the results of the viscosity of the paste is also taken into consideration. However, during use of the paste in the apparatus, the viscosity always changes slightly. In reality, it is extremely difficult to take all data relating to viscosity in advance and control the apparatus based on this data. Therefore, even in the description of this publication, the viscosity is described only for data of at most three stages. In addition to the fact that the positions of both ends of the glue and the positions of both ends of the paper cannot be completely matched, the control of this apparatus has the drawback that it becomes more complicated. Also, in the case of the apparatus disclosed in Japanese Utility Model Laid-Open No. 4-94433, the peripheral speed of the glue roll is divided into several stages, and the position of the glue dam is determined by operating the photoelectric tube provided in several stages in accordance with this. No matter what the peripheral speed, the position of the glue roll can be completely matched to the both ends of the paper by correcting the moving position of the glue dam. However, there is a disadvantage that the control device becomes more complicated.

In addition, even if the movement position of the glue dam is corrected based on the viscosity of the glue and the speed of the paper, the glue roll and the doctor
The hydraulic pressure generated in the glue in the gap between the roll and the roll always varies depending on the rotational speed of the roll.
The width of the glue transferred from the glue dam to the metal surface changes. In addition, in order to change the transfer amount of the paste to the paste roll surface depending on the type of paper, the gap between the paste roll and the doctor roll needs to be changed. The width of the protrusion also changes.

However, the devices disclosed in both Japanese Patent Publication No. Sho 60-58019 and Japanese Utility Model Laid-Open Publication No. Hei 4-94433 disclose the glue from the glue dam caused by such a change in the glue hydraulic pressure. No consideration is given to the overhang width, and therefore, when correcting the moving position of the glue dam without considering this, it is necessary to completely match the both ends of the glue roll with the both ends of the paper. Had not been reached.

[0005]

SUMMARY OF THE INVENTION The present invention does not require an advanced control device for gluing the glue roll by complicated correction of the glue dam movement, and the glue roll is glued from both ends of the paper. It is an object of the present invention to provide a gluing device having a device with a simple control that moves a pair of suction ports corresponding to both end positions of a sheet so that the protruding portion can be removed by suction by a pair of suction ports.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, a gluing apparatus according to the present invention detects a glue roll, a doctor roll, and both ends of a paper running on a glue roll surface. And a pair of glue dams that regulate the glue position on the glue roll surface by movement based on a detection signal from the detector, a pair of moving bodies moving in the axial direction of the glue roll. And a pair of suction ports opposed to the glue roll surface and respectively moving integrally with the pair of moving bodies,
A pair of suction pipes respectively communicating with the pair of suction ports are provided, and the driving devices for moving the pair of moving bodies are respectively driven based on detection signals corresponding to both end positions of the paper by the detector. Each suction port provided in the pair of moving bodies is moved to each outer surface from both end positions of the glue on the glue roll surface corresponding to both end positions of the paper, and protrudes from each end position of the glue to each outer surface. Adhesive is removed by suction with the pair of suction ports.

In the present invention, the suction port may have any structure and shape as long as the suction port protrudes from the gluing position on the glue roll corresponding to the both ends of the paper and sucks out the glue adhering thereto. In addition, suction ports that move from both end positions of the glue of the glue roll corresponding to both end positions of the paper to the outer surface may be attached to the moving body that moves the glue dam, or are separate from the moving body that moves the glue dam. May be attached to the moving body provided in the above.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention is shown in FIGS. 1, 2 and 3. FIG. The gluing device of the single facer according to the present invention includes a glue roll 1, a doctor roll 2, a glue dam device 3, a glue tank 4, and a glue suction device 5. Since the glue roll 1 and the doctor roll 2 are known, detailed description is omitted. In this example, the glue dam device 3 includes a core paper 6.
A pair of photoelectric tubes 31 for detecting the positions of both ends of the pair, a pair of reversible rotary motors 32 driven by signals detected by the pair of photoelectric tubes 31, and a pair of movable bodies 33 fixed to the reversible rotary motor 32, respectively. A rotating member 39 rotatably fitted to the moving body 33 via a bearing and screwed to a screw shaft 35 to be described later; a screw shaft 35 non-rotatably fixed to the machine body; A pair of sprocket wheels 38 attached to the drive shaft of the electric motor 32, a pair of sprocket wheels 37 attached to the pair of movable members 39, and a pair of sprocket wheels 37, 38 rotatably meshed with each other. And a pair of moving bodies 33
, And a pair of glue dams 34 respectively attached thereto. Therefore, the pair of reversible rotary motors 32
By the respective drive rotations of the drive shafts, the respective rotating members 39 of the pair of moving bodies 33 screwed to the fixed screw shaft 35 rotate and move in the left or right direction. The attached glue dams 34 move together with the movement of the moving body 33. The glue suction device 5 has a pair of suction ports 51 which are opposed to the glue roll surface 12 to suck and remove the adhesive 7 on the glue roll surface, and a pair of suction pipes 52 communicating with the respective suction ports 51. And a support body 53 attached and supported by a suction pipe 52 and integrally attached to the pair of moving bodies 33 of the glue dam device 3.
It consists of In the present example, the reversible rotary motor 32 used for moving the pair of moving bodies 33 of the glue dam device 3 is also used as the moving driving device used for moving the pair of suction ports 51. In addition, 6 is a core paper, 8 is an upper roll, 9 is a lower roll, 10 is a pressure roll, 11 is a liner paper. Omitted.

A pair of movable bodies 33 are provided with a pair of suction ports 51 and a pair of glue dams 34. The pair of photoelectric tubes 31 detects both end positions of the paper, and the signals are used to detect the positions.
The pair of moving drives (reversible rotary motors) 32 are driven, and the inside of the pair of suction ports 51 and the pair of glue dams 34
Moves to a position corresponding to both end positions of the paper. Since the inside of the pair of suction ports 51 is provided facing the glue roll surface 12 at a position 71 whose inner side is aligned with both end positions of the paper, it protrudes outward from the position 71 aligned with both end positions of the paper. By removing the paste 72 by suction through the pair of suction pipes 52, both end positions of the paste of the paste roll 1 can be matched with both end positions of the paper.
If the suction port 51 is brought into contact with the glue roll surface 12 to scrape the glue 72 protruding outside, it can be more efficiently eliminated.

In the embodiment of the present invention, a pair of glue dams 3 are used.
The position of the pair of suction ports 51 is controlled by the movement driving device 32 of the pair of moving bodies 33 used for the movement of the pair 4, and the pair of moving bodies 33 of the glue dam device 3 and another pair of movements are controlled. A body is provided, a pair of suction ports 51 are attached to the body, and based on detection signals of both end positions of the paper, a moving driver for moving the other pair of moving bodies respectively,
Each of the pair of suction ports may be moved to a position corresponding to both end positions of the paper. The mechanism for moving the moving body is not limited to the above-described embodiment, but is described in Japanese Patent Publication No. 60-58019 and Japanese Utility Model Application Laid-Open No. 4-94.
No. 433, it may be a conventional moving mechanism or the like.

[0011]

According to the present invention, even if the peripheral speed of the glue roll, the viscosity of the glue, the liquid pressure of the glue in the gap between the glue roll and the doctor roll, etc. change, the pair of suction ports are positioned at both ends of the paper. Just by opposing the glue roll surface at the position that matches the glue, the glue on the glue roll surface that protrudes from both ends of the glue corresponding to both ends of the paper is reliably and quickly suctioned out,
The glue can be accurately adhered to the paper in accordance with the position of both ends of the paper. Further, the moving device of the pair of suction ports of the present invention,
It can be manufactured easily and inexpensively, and the peripheral speed of the glue roll,
A complicated glue dam position correction control device for responding to changes in glue viscosity and liquid pressure is no longer necessary.

[Brief description of the drawings]

FIG. 1 is a side view schematically showing the present invention.

FIG. 2 is an explanatory diagram when FIG. 1 is viewed from the front.

FIG. 3 is an explanatory view of a glue dam driving mechanism of FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Glue roll 12 Glue roll surface 2 Doctor roll 3 Glue dam device 31 Photoelectric tube 32 Moving body driving drive 33 Moving body 34 Glue dam 51 Suction port 52 Suction pipe 71 Both ends position of paper on glue roll surface 72 Both ends of paper Glue that protrudes to the outside from the position that matches the position

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B31F 1/00-1/36 B05C 1/00-1/16 B21H 5/00 B21H 23/00-23 / 78

Claims (1)

(57) [Claims] 1. A glue roll, a doctor roll, a detector for detecting both end positions of paper running on a glue roll surface, and a glue roll on the glue roll surface by movement based on a detection signal from the detector. In the pasting apparatus provided with a pair of pasting dams for regulating the pasting position of the above, a pair of moving bodies moving in the axial direction of the pasting roll, and a pair of moving bodies opposed to the pasting roll surface and integrated with each other. A pair of suction ports to move each, and a pair of suction pipes respectively communicating with the pair of suction ports are provided,
Based on detection signals corresponding to both end positions of the paper by the detector, the driving devices for moving the pair of moving bodies are respectively driven, and the suction ports provided in the pair of moving bodies are positioned at both end positions of the paper. The adhesive paste is moved to each outer surface from both end positions of the glue on the corresponding glue roll surface, and the adhesive sticking out to each outer surface from both end positions of the glue is suctioned and eliminated by the pair of suction ports. Gluing device.