JP2565183Y2 - Liner pre-heater with pressure mechanism - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a corrugating machine for manufacturing corrugated cardboard, which relates to a liner pre-heater having a pressurizing mechanism, which can save labor when laminating a liner to a core paper, and torsion and warping of a product. The present invention relates to a liner pre-heater device having a pressure mechanism formed so as to eliminate bonding defects and the like.

[0002]

2. Description of the Related Art Conventionally, in an apparatus for manufacturing corrugated cardboard, a core paper and a liner are bonded in a heated and pressurized state. Before bonding, a liner pre-heater unit that heats and transports the liner. Are provided.

[0003]

However, in the conventional liner preheater described above, when the operating speed is increased, the liner cannot be sufficiently heated, and the moisture contained in the liner becomes non-uniform. There is a problem in that the product is deformed due to the occurrence of warping or warping, and that the brake needs to be adjusted, and the product also suffers from twisting, warping, bonding failure and the like.

[0004] In view of the above-mentioned problems, the present invention has made it difficult to manufacture uniform and high-quality corrugated cardboard by heating the liner uniformly and efficiently and increasing the production efficiency with a simple structure. The present invention has been devised to provide a liner pre-heater device having a pressurizing mechanism, which enables a continuous production with a minimum of troublesome brake adjustment and the like, so that the operator can perform the production with ease.

[0005]

In order to solve the above-mentioned problems, in a liner pre-heater device of a corrugating machine, a substantially cylindrical heat roller for conveying and heating a liner, and a liner wound around a curved surface of the heat roller. A pressurizing mechanism that pressurizes the liner directly on the curved surface of the heat roller, a pressing mechanism that pressurizes the liner directly on the curved surface of the heat roller, In the road, two substantially cylindrical guide rollers arranged in front of and behind the heat roller to wind the liner around the heat roller, and a pressure adjustment mechanism for adjusting pressure by the pressure mechanism And the pressure adjusting mechanism is configured to press the liner through the band by superimposing the pressure portion inside the pressure portion base.

[0006]

[Function] Because of the above, the heating of the liner can be performed uniformly and efficiently, the water content in the liner is constant, and the liner is stable without tarring and warping even when the operation speed is increased, It is possible to eliminate twisting, warping, bonding defects, etc., increase production efficiency with a simple structure, manufacture uniform and high quality cardboard, minimize troublesome brake adjustment etc. Continuous production can be performed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of the periphery of a conventional device according to the present invention, FIG. 2 is a perspective view of a main part of the first embodiment, FIG. 3 is a side view of a main part of the first embodiment, and FIG. FIG. 10 is a side view of a main part in the case of Embodiment 2.

In FIG. 1, after the liner 1 is pulled out from the base paper roll 3, the liner 1 is once wound around a heat roller 4, conveyed while being heated, and glued by a gluing roller 6 provided in the glue tank 5. 3 shows a process of bonding the core paper 2 with the core paper 2.

2 and 3, a liner pre-heater device having a pressure mechanism according to a first embodiment includes a heat roller 4 having a substantially cylindrical shape, a pressure mechanism portion, and a belt 1.
0 and two substantially cylindrical guide rollers 7.8.

The liner 1 wound around the heat roller 4 by the entrance guide roller 7 is conveyed and proceeds to the step of bonding with the core paper 2 via the exit guide roller 8.
The liner 1 is pressurized by a sand bag 9 placed on a belt 10 on the curved surface of the heat roller 4, and the heat roller 4 can uniformly and efficiently heat the liner 1, and the contained moisture is constant. In addition, since the sand bag 9 also functions as a brake component as appropriate, even when the driving speed is increased, the liner 1 is stable without generation of warp or warpage, so that the product is significantly reduced in twisting, warping, bonding failure and the like. It is possible to reduce the troublesome brake adjustment and the like, and the operator can perform continuous production with peace of mind.

In the first embodiment, three sand bags 9 each having a weight of 5 kg are placed in a row in the axial direction of the heat roller 4 via the band 10 evenly with respect to the paper width of the liner 1. Is placed. The pressure is adjusted by appropriately adjusting the size, weight, number, etc. of the sand bags 9 to be placed according to conditions such as the width of the liner, the diameter of the heat roller, and the operating speed. A suitable material for the belt 10 is a felt belt.

The apparatus of the second embodiment shown in FIG. 4 is a liner preheater having a pressure adjusting mechanism for mechanically adjusting the pressure in place of the sand bag 9 of the first embodiment.

The pressure adjusting mechanism according to the second embodiment superposes a pressing portion 11 made of a heat-resistant sponge or rubber material along an inner side of an arc portion of an iron pressing portion base 12 having an arc-shaped cross section. As in the first embodiment, the liner 1 is pressurized through the band 10. When the pressure adjustment handle 15 is rotated,
By interlocking the pressure arm 14 via the rack gear 16 and the pinion gear 17, the pressure shaft 13 erected from the pressure unit base 12 moves up and down to perform pressure adjustment.

It is needless to say that the present invention is not limited to the single-sided and double-sided corrugating machines and the above-described embodiments.

[0016]

[Effects of the Invention] Since the present invention is configured as described above, in a liner pre-heater device of a corrugating machine, a substantially cylindrical heat roller for conveying and heating the liner, and a liner for the curved surface of the heat roller And a pressing mechanism that presses with an appropriate pressure perpendicular to the tangential direction of the substantially circular cross-sectional shape, and a belt that directly presses the pressure of the pressing mechanism to the liner on the curved surface of the heat roller, In the conveyance path of the liner, two substantially roller-shaped guide rollers arranged in front of and behind the heat roller to wind the liner around the heat roller,
The pressure adjusting mechanism is formed by a pressure adjusting mechanism that adjusts pressure by the pressing mechanism. By applying pressure, heating to the liner can be performed uniformly and efficiently, and the water content in the liner becomes constant,
Even when the operating speed is increased, the liner is stable with no tarring or warpage, there is no need for brake adjustment, the product is free from twisting, warping, bonding failure, simple configuration, high production efficiency, uniform high The production of high-quality corrugated cardboard has excellent effects, such as labor savings, by minimizing tedious maintenance and allowing operators to mass-produce with peace of mind.

Further, since the pressure adjusting mechanism is configured to press the liner through the band by overlapping the pressure portion inside the pressure portion base, the pressure adjustment handle is rotated. By interlocking the pressurizing arm via the rack gear and the pinion gear, the pressurizing shaft erected from the pressurizing unit base moves up and down, so that the pressurizing adjustment can be performed reliably.

[Brief description of the drawings]

FIG. 1 is a side view of the periphery of a conventional device according to the present invention.

FIG. 2 is a perspective view of a main part of the first embodiment of the present invention.

FIG. 3 is a side view of a main part of the first embodiment of the present invention.

FIG. 4 is a side view of a main part in a second embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Liner 2 Core paper 3 Base paper roll 4 Heat roller 5 Glue tank 6 Glue roller 7 Inlet guide roller 8 Outlet guide roller 9 Sand bag 10 Band 11 Pressure unit 12 Pressure unit base 13 Pressure shaft 14 Pressure arm 15 Pressure adjustment handle 16 Rack gear 17 Pinion gear

Claims (1)

(57) [Scope of request for utility model registration] In a liner pre-heater unit of a corrugating machine, a substantially cylindrical heat roller for conveying a liner while heating the liner, and a liner wound around a curved surface of the heat roller, and a tangent having a substantially circular cross-sectional shape thereof A pressure mechanism that presses with pressure as appropriate in the direction perpendicular to the direction, a band body that directly presses the pressure of the pressure mechanism onto the liner on the curved surface of the heat roller, and a liner transport path that is parallel to the heat roller. The pressure adjusting mechanism is formed by two substantially cylindrical guide rollers that are arranged in front and rear to wind a liner around a heat roller, and a pressure adjusting mechanism that adjusts pressure by the pressure mechanism. Pressurizes the pressurizing section
Polymerized on the inside of the base, and the liner
And a liner pre-heater device having a pressure mechanism.