JP4877582B2 - Continuous pressure device - Google Patents

Description

The present invention relates to a continuous pressure device.
The present invention also relates to a continuous pressurizing apparatus useful for production of a metal gasket having a metal surface covered with a rubber-like elastic body.
Furthermore, this invention relates to the continuous pressurization apparatus used for continuous production lines, such as a film raw material, a plywood, and a lamination sheet.

Furthermore, this invention relates to the continuous pressurization apparatus suitable for production of the product which needs heating and pressurization continuously.
In particular, it is effectively used for the production of metal gaskets.

As this kind of continuous pressurizing apparatus, an apparatus described in FIGS. 3 to 6 (Japanese Patent Laid-Open No. 63-54223) is known.
This kind of continuous pressurizing apparatus is provided with pressurizing chambers 1, 1 on each back surface side (a side not in contact with the object to be compressed 3) of the pair of conveying belts 2 and 2 that convey the object to be compressed 3. .
The pressurized fluids 4 and 4 are supplied to the pressurized chambers 1 and 1.

And the sealing means 100 is arrange | positioned at the peripheral part which faces the conveyance belt of this pressurization chamber 1, 1 so that a vertical motion is possible.
As shown in FIG. 4, the sealing means 100 is composed of a pair of longitudinal seals 6 and 6 arranged in parallel with the conveying direction, and a pair of wide seals 7 and 7 perpendicular to the pair.

The conveyor belts 2 and 2 are suspended up and down by a pair of drums 110 and 110 and are driven to rotate at a constant vertical speed. The conveyor belts 2 and 2 are usually endless steel belts.
Further, the sealing means 100 follows the uneven thickness of the article 3 to be compressed and the deformation of the conveyor belts 2 and 2 to effectively prevent leakage of the pressurized fluid from the pressurized chambers 1 and 1. The housing 8 to which the sealing means 100 is attached is held so as to be movable up and down.

JP 63-54223 A JP-A-62-212111 JP-A 63-54222

  However, in the conventional continuous pressurizing apparatus shown in FIG. 3 described above, there is a risk that the sealing means 100 is damaged early.

That is, a brittle material such as carbon has been used for the sealing means from the viewpoint of heat resistance and low friction.
Since the sealing means must be held so as to be movable up and down, there is a possibility that it will be greatly bent and damaged by its own weight.

In particular, as shown in FIG. 5, the longitudinal seals 6 and 6 have a method of locking the projections 11 and the receiving grooves 12 as means for preventing the longitudinal seals 6 and 6 from moving in the transport direction. .
However, when the longitudinal seals 6 and 6 are bent by their own weight, there is a risk that the engagement between the protrusion 11 and the receiving groove 12 is released as shown in FIG.

  When the protrusion 11 and the receiving groove 12 are returned from the disengaged state to the original state when the protrusion 11 and the receiving groove 12 are displaced, the longitudinal seals 6 and 6 are bent greatly. The stress was applied, causing a problem that the longitudinal seals 6 and 6 were damaged.

  In particular, when the supply of the pressurized fluids 4 and 4 is again supplied to the pressurizing chambers 1 and 1 in order to resume the operation after the supply of the pressurized fluids 4 and 4 to the pressurizing chambers 1 and 1 is stopped. Such a problem was caused.

  This invention is made | formed in view of such a subject, and it aims at providing the continuous pressurization apparatus which can control the deformation | transformation of a sealing means and can maintain favorable sealing performance.

Moreover, an object of this invention is to provide the continuous pressurization apparatus which can suppress a deformation | transformation of a sealing means.
It is another object of the present invention to provide a continuous pressure device that achieves low friction without impairing the sealing performance.

Another object of the present invention is to provide a continuous pressurizing device that allows the sealing means to move up and down within a certain range and can safely use the sealing means for a long period of time.
Another object of the present invention is to provide a continuous pressurizing device that is particularly effective and has a remarkable effect when used for an upper longitudinal seal.

The continuous pressure device of the present invention is sandwiched between a pair of pressurizing chambers facing each other by an opening formed by a housing, a pair of conveyor belts that circulate between the openings, and the conveyor belt. The object to be compressed and the object to be compressed are arranged in parallel with the conveying direction so as to be able to move up and down in a groove provided on the peripheral edge of the opening of the pressurizing chamber so as to open facing the conveying belt. In a continuous pressurizing device comprising a pair of longitudinal seals and a pair of width seals arranged in a form perpendicular to the transport direction, a groove provided on a side surface of the longitudinal seal located on the upper surface side of the transport belt ; The bending of the longitudinal seal is regulated by a pin that is held on the housing side and is engaged with the groove that is a long hole extending in the vertical movement direction of the longitudinal seal.

The present invention has the following effects.
According to the continuous pressurizing apparatus of the first aspect of the present invention, damage to the longitudinal seal can be effectively prevented, so that stable sealing performance can be maintained for a long time. In particular, damage to the longitudinal seal located on the upper surface side of the conveyor belt, where damage due to bending deformation due to its own weight is significant, can be effectively prevented, and damage to the longitudinal seal is allowed while allowing vertical movement of the longitudinal seal within a certain range. Can be prevented.

Furthermore, according to the continuous pressurizing apparatus of the second aspect of the present invention, it is particularly effective when a brittle material such as carbon is used as the sealing material.
Furthermore, according to the continuous pressurizing apparatus of the third aspect of the invention, the deformation in the vicinity of the central portion where the bending amount of the longitudinal seal is the largest can be effectively restricted, so that damage to the longitudinal seal can be effectively prevented.

Furthermore, according to the continuous pressurizing device of the invention described in claim 4 , since the pipe taper screw is used for mounting the pin, it can withstand a large load and can surely prevent the longitudinal seal deformation.
Furthermore, according to the continuous pressurizing device of the invention described in claim 5 , damage to the longitudinal seal can be effectively eliminated while maintaining the degree of freedom of the longitudinal seal.

Furthermore, according to the continuous pressurizing device of the sixth aspect of the present invention, it is possible to effectively prevent the longitudinal seal from moving in the transport direction, so that good sealing performance can be maintained.
Furthermore, according to the continuous pressurizing apparatus of the seventh aspect of the present invention, the friction between the longitudinal seal and the conveyor belt can be kept low.

Furthermore, according to the continuous pressurizing apparatus of the invention described in claim 8 , continuous operation is easy.

Hereinafter, the best mode for carrying out the present invention will be described.
The best mode for carrying out the invention will be described with reference to FIGS. 1 and 2. FIG.
Pressurized fluids 4, 4 are introduced into the pair of pressurization chambers 1, 1 facing the openings formed by the housings 8, 8.

The pressurized fluid 4, 4 are heated pressurized if necessary.
And a pair of conveyance belts 2 and 2 which go around between opening parts are rotated by a pair of drums 110 and 110 arrange | positioned up and down.

The conveyor belts 2 and 2 are usually endless steel belts.
Further, a pressurized object 3 to be pressed is sandwiched between the conveyor belts 2 and 2 and conveyed.
Grooves 5 and 5 are formed in the opening peripheral part of the pressurizing chambers 1 and 1 so as to open facing the conveyor belts 2 and 2.

  In the grooves 5 and 5, a pair of longitudinal seals (6) and (6) arranged parallel to the conveying direction and a pair of widths arranged perpendicular to the conveying direction so as to be movable up and down. Hand seals (7), (7) are arranged.

Further, the side surface of the longitudinal seal 6, 6, and grooves 9, 9, whereas, in the housing 8 side, pins 10 and 10 to be engaged with the grooves 9, 9 are attached.
The pin 10 is attached to the housing 8 using a pipe taper screw.

Thereby, the bending of the longitudinal seals 6 and 6 can be reliably regulated.
And it is effective to provide the grooves 9 and 9 in the longitudinal seals 6 and 6 located on the upper surface side of the conveyor belt 2 that are easily bent under the influence of gravity.
Further, the groove 9 is a long hole extending in the vertical movement direction of the longitudinal seal 6 and is designed to have a dimension for mutual engagement with the pin 10 so that the longitudinal seal 6 does not bend beyond an allowable range.
The longitudinal seal 6 is preferably made of a carbon material from the viewpoint of heat resistance and low friction.

Further, the groove 9 is provided at a substantially central portion in the conveying direction of the longitudinal seal 6 having the largest deflection amount.
Furthermore, the upper surface of the longitudinal seal 6 is provided with a receiving groove 12 that engages with a protrusion 11 provided on the bottom surface of the groove 5.

This prevents the longitudinal seal 6 from moving in the transport direction together with the transport belt 2.
An oil retaining groove 13 is provided on the surface of the longitudinal seal 6 that slides with the conveyor belt 2.
A part of the pressurized fluid 4 enters the oil retaining groove 13 to keep the sliding resistance between the longitudinal seal 6 and the conveyor belt 2 low.

  The present invention is not limited to the best mode for carrying out the invention described above, and various other configurations can be adopted without departing from the gist of the present invention.

It is a half sectional view showing an embodiment of the invention concerning a continuous pressurizing device. It is a half sectional view showing an embodiment of the invention concerning a continuous pressurizing device. It is a half cross-sectional view showing a prior art that written to a continuous pressure device. It is a half sectional view showing other conventional technology concerning a continuous pressurizing device. It is a side view which shows the behavior of the longitudinal seal of the continuous pressurization apparatus which concerns on a prior art. It is a side view which shows the behavior of the longitudinal seal of the continuous pressurization apparatus which concerns on a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Pressurization chamber 2 ... Conveyor belt 3 ... Compressed material 4 ... Pressurized fluid 5 ... Groove 6 ... Long seal 7 ... Wide seal 8 ... Housing 9 ... Groove 10 ... Pin 11 ··· Projection 12 ··· Receiving groove 13 · · · Oil retaining groove 14 · · · Axial surface

Claims (8)

A pair of pressurizing chambers (1), (1) opposed to each other by openings formed by the housings (8), (8), and a pair of conveying belts (2) circulating between the openings; 2), an object to be compressed (3) sandwiched and conveyed between the conveyor belts (2) and (2), and an opening facing the conveyor belts (2) and (2). A pair of longitudinal seals (6) arranged in parallel with the conveying direction, fitted in grooves (5), (5) provided in the peripheral edge of the opening of the pressurizing chamber (1), (1) so as to be movable up and down. , (6) and a continuous pressure device comprising a pair of width seals (7), (7) arranged in a shape perpendicular to the conveying direction, the above-mentioned positioning on the upper surface side of the conveying belt (2) longitudinal seal (6), grooves are long holes extending in the vertical movement direction of the longitudinal seal which is provided on the side surface (6) (6) (9), and (9) The retained in the housing (8) side, said groove (9), (9) a pin for engagement (10), (10) the longitudinal seal by the (6), so as to regulate the deflection of (6) A continuous pressurizing device characterized by the above. Continuous pressure device according to claim 1, wherein the longitudinal seal (6) is made of carbon material. The continuous pressurizing device according to claim 1 or 2 , wherein the groove (9) is provided at a substantially central portion in the transport direction of the longitudinal seal (6). The continuous pressurizing device according to any one of claims 1 to 3 , wherein the pin (10) is attached to the housing (8) using a taper screw for a pipe. The groove (9) and the pin (10) engage with each other so as to be movable up and down, and engage with each other so that the longitudinal seal (6) does not bend beyond an allowable range. The continuous pressurization apparatus as described in any one of 1-4 . Any one of said longitudinal sealing said groove (5) on the upper surface (6) according to claim, characterized in that a projection provided on the bottom surface (11) and engage the receiving groove (12) provided 1-5 The continuous pressurizing apparatus according to item. The continuous pressurizing device according to any one of claims 1 to 6 , wherein an oil retaining groove (13) is provided on a surface of the longitudinal seal (6) that slides with the conveyor belt (2). . The continuous pressure device according to any one of claims 1 to 7 , wherein the conveyor belt (2) is an endless steel belt.

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