JPH0760371A - Production device of al sheet engine cover - Google Patents

Abstract

PURPOSE:To prevent the cracking at the time of drawing by forming crease in longitudinal/latitudinal two directions on the engine cover sheet, in which asbesto is stuck on Al sheet. CONSTITUTION:The latitudinal drawing means A is formed so that the rotating shafts 5a1-5an from a first to n-th are placed in the same plane apart a specific space with facing a pair of rotating shaft groups (a), (b), further for the rotating shaft group (a), an abacus bead shape pressing roller 6a is approached in sequence and is stuck on each left/right symmetrically to each rotating shaft from 5a1-5an. For other rotating group (b), the same abacus bead shape roller 6b is stuck to position on both sides of each pressing roller 6a of each rotating shaft, also the longitudinal drawing means B is formed so that long sideway spurgears 8a, 8b are stuck on a pair of rotating shafts 7a, 7b and the teeth 9 of each spurgear are reversed each other with holding the prescribed distance so as to mesh between facing teeth each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing an engine cover material made of an aluminum sheet for forming an engine cover for covering an automobile engine to insulate and insulate it.

[0002]

2. Description of the Related Art Conventionally, in this type of engine cover material, asbestos is attached to an aluminum sheet to form a vertically long aluminum sheet material, and the aluminum sheet material is squeezed only in one direction to provide a plurality of walls. Become. Then, this is cut into a predetermined size and further drawn to a predetermined depth to form an engine cover.

[0003]

However, when such a conventional engine cover material is drawn into a shape that matches the shape of the engine surface, when it is squeezed in the direction orthogonal to the folds, the folds of the folds become uneven. Because it can be expanded and contracted, it can be processed without causing breakage, but since it cannot expand or contract in the longitudinal direction of the folds, there is a serious problem that it breaks or cracks and significantly reduces the performance of heat insulation and sound insulation. It was Therefore, the present invention has been made to solve such a problem, and an object of the present invention is to provide an apparatus capable of continuously producing an engine cover material provided with folds in both vertical and horizontal directions.

[0004]

In order to achieve such an object, the present invention comprises a horizontal drawing means for drawing a vertically elongated aluminum sheet material in the horizontal direction and a vertical drawing means for drawing it in the vertical direction. , A pair of rotating shaft groups in which the first to n-th rotating shafts are arranged in parallel in the same plane at equal intervals and in parallel are arranged so as to face each other at a predetermined interval. 2n-1 pieces (n is the number of each rotation axis) of abacus spherical pressing rollers are sequentially arranged close to each of the nth to nth rotation axes and are fixed so as to be symmetrical with respect to the center. In the other rotary shaft group, the same abacus-shaped pressing rollers for the first to n-th rotating shafts are arranged so as to be located on both sides of each pressing roller of each rotating shaft (n is the number of each rotating shaft). Each of the vertical diaphragm means is formed with a pair of parallel rotating shafts. Fixing a long-shaped spur gear, it is formed so as to reverse each other maintaining a predetermined distance so as to face the inter-tooth teeth of each spur gear are opposed to each other.

[0005]

In the horizontal drawing means, the vertically elongated aluminum sheet material is fed from the tip side of the pair of rotating shafts, and
The aluminum sheet material is squeezed at the center in the longitudinal direction by one presser roller fixed to one of the first rotary shafts and two presser rollers fixed to the other opposing rotary shafts to form two V strips.
Grooves are formed and three presser rollers are fixed to the second rotary shaft of the next one, and four presser rollers are fixed to the other second rotary shaft so as to be located on both sides of these press rollers. One V groove is formed on each side of the two V grooves by the roller. Hereinafter, as the order of the rotary shafts increases by one, V grooves are additionally formed by squeezing one strip on each side of the previous V groove, and the V groove in the vertical direction is provided to the full width of the aluminum sheet material. A large number of vertical folds are formed. Then, in the vertical drawing means, the aluminum sheet material thus formed with a large number of vertical folds is passed between a pair of spur gears to form a horizontal fold that is squeezed in the vertical direction and is orthogonal to the vertical folds. It is possible to continuously manufacture an engine cover material having vertical walls and horizontal folds in the vertical and horizontal directions.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an aluminum sheet engine cover material manufacturing apparatus according to the present invention will be described below with reference to the drawings.
In the figure, reference numeral 1 is an aluminum sheet material in which asbestos 3 is attached to one side of an aluminum sheet 2, and the aluminum sheet material 1 formed in a long shape with a constant width is wound around a winding shaft 4 and is continuous. Is being supplied. The present apparatus is roughly composed of a horizontal drawing means A for drawing the aluminum sheet material 1 in the horizontal direction and a vertical drawing means B for drawing the aluminum sheet material 1 in the vertical direction.

In the horizontal drawing means A, 5 is a rotary shaft having a length substantially the same as the horizontal width of the aluminum sheet material 1, and a plurality of (first to n-th) parallel to the winding shaft 4 are arranged on the same plane. While arranging at equal intervals inside the rotary shaft group a,
Below the rotating shaft group a, a rotating shaft group b having the same structure is arranged to face each other with a predetermined interval.

Further, in the rotary shaft group A, one abacus spherical pressing roller 6a is fixed at the central position in the longitudinal direction of the rotary shaft 5a1 closest to the winding shaft 4, and the second to nth members are fixed. The rotary shafts 5a1 to 5an include the rotary shaft 5a1.
2n-1 pieces (where n is the number of each rotation axis) so as to be bilaterally symmetrical with respect to the pressing roller 6a.
The pressing rollers 6a are closely arranged and fixed at equal intervals so that the final rotating shaft 5an fills the aluminum sheet material 1 in the width direction.

Further, in the rotary shaft group B, presser rollers 6b and 6b are respectively placed on both sides of one presser roller 6a fixed to the rotary shaft 5a1 on the first rotary shaft 5b1 corresponding to the rotary shaft 5a1. The rotation shafts 5a2 to 5a are fixed to the rotation shafts 5b2 to 5bn after the second rotation shaft.
2n number of pressing rollers 6b (n is the number of each rotating shaft) are sequentially fixed so as to be positioned on both sides of each pressing roller 6a fixed to n.

In the vertical drawing means B, 7a and 7b are a pair of upper and lower rotating shafts which are parallel to the winding shaft 4 and which are opposite to each other, and horizontally long spur gears 8a and 8b are fixed to the rotating shafts 7a and 7b. ing. The teeth 9 of the spur gears 8a and 8b are kept at a predetermined distance so as to face between the teeth 9 and 9 facing each other, and the teeth 9 and 9 are meshed with each other so that the aluminum sheet material 1 is not broken.

The engine cover material manufacturing apparatus of the present invention has the above-mentioned structure. In the horizontal drawing means A, the vertically elongated aluminum sheet material 1 is fed from the tip end side of the pair of rotary shafts a and b. , A pressing roller 6a fixed to one first rotating shaft 5a1 at the center of the lengthwise direction of the aluminum sheet material 1, and two pressing rollers 6b and 6b fixed to the other opposing rotating shaft 5b1. 2 V-grooves are formed by squeezing with the pressing rollers 6a, 6a, 6a fixed to the second rotating shaft 5a2 of the next one, and on both sides of these pressing rollers 6a, 6a, 6a. Four pressing rollers 6b fixed to the other second rotating shaft 5b2 so as to be positioned,
By virtue of 6b, 6b and 6b, one V-groove is formed on each side of the two V-grooves. Hereinafter, as the order of the rotating shaft increases by one, one V groove is squeezed on each side of the preceding V groove to be additionally formed, and a vertical V groove is provided to fill the width of the aluminum sheet material 1. A large number of vertical folds L, L ... Are formed. Next, in the vertical drawing means B, the aluminum sheet material 1 thus formed with a large number of vertical folds L, L ... Is passed between the pair of spur gears 8a, 8b, and is squeezed in the vertical direction. .. that are orthogonal to each other are formed, and finally an engine cover material having vertical walls L, L ... And lateral folds W, W ... can be continuously manufactured in the vertical and horizontal directions.

In this way, the engine cover material having a plurality of vertical folds L, L ... And the lateral walls W, W .. Even if it is done, the unevenness of each of the plurality of folds W and L is hardly expanded and contracted, and the aluminum sheet 2 of the engine cover material, particularly the aluminum sheet 2, is hardly broken or cracked.

FIG. 5 shows another embodiment. This manufacturing apparatus has one, three, and two bilaterally symmetrical units at the center in order over the rotary shafts 5a1-5an of the rotary shaft group a. The presser roller 6a is arranged and fixed in a mountain-shaped outline as a whole, and the presser roller 6a is sequentially attached to the rotary shafts 5b1 to 5bn of the rotary shaft group b.
The pressing roller 6b is arranged and fixed on both sides of the.
Even with such a configuration, the pressing rollers 6a on the front and back surfaces,
The vertical wall L can be sequentially formed from the center to both sides by 6b, and it is economical because many pressing rollers 6a and 6b are not required as in the present embodiment.

[0014]

As described above, in the engine cover material manufacturing apparatus of the present invention, a pair of rotary shafts are combined with presser rollers in order so as to spread from the center toward both sides in order. , The vertical folds are sequentially expanded in the width direction on the aluminum sheet material without any difficulty. Furthermore, a pair of spur gears forms a lateral fold. This makes it possible to manufacture engine cover materials that have folds in both vertical and horizontal directions, which has never been seen before, and even if drawing is performed to manufacture the engine cover, it can freely stretch in any direction, and the aluminum sheet will be damaged. Rather, it has the advantage that an excellent engine cover with good heat insulation and sound insulation can be manufactured.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a manufacturing apparatus according to the present invention.

FIG. 2 is an enlarged side view of the same.

FIG. 3 is an enlarged cross-sectional view taken along line XX of FIG.

FIG. 4 is a perspective view of a part of the engine cover material manufactured by the manufacturing apparatus of the present invention.

FIG. 5 is a schematic plan view of a manufacturing apparatus showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Aluminum sheet material 5, 5a1-5an Rotating shaft 5b1-5bn Rotating shaft 6a, 6b Pressing rollers 7a, 7b Rotating shafts 8a, 8b Spur gears 9 Teeth a Rotating gear group b Rotating gear group A Lateral drawing means B Vertical drawing means

Claims (1)

[Claims] 1. A horizontal diaphragm means for horizontally narrowing a vertically long aluminum sheet material and a vertical diaphragm means for vertically narrowing the aluminum sheet material, wherein the horizontal diaphragm means have the first to nth rotation axes on the same plane. A pair of rotating shaft groups arranged in parallel at equal intervals in parallel are arranged facing each other at a predetermined interval. One rotating shaft group has an abacus-shaped pressing roller on each of the first to nth rotating shafts. 2n-1 pieces (n indicates the number of each rotation axis) are sequentially arranged in close proximity to each other and fixed so as to be bilaterally symmetric with respect to the center, and each of the first to nth rotation axis groups is attached. The same abacus-shaped pressing roller is fixedly attached to the rotating shaft by 2n units (n is the number of each rotating shaft) so as to be located on both sides of each pressing roller of each rotating shaft. A horizontally long spur gear is fixed to a pair of parallel rotating shafts, and the teeth of each spur gear face each other. An apparatus for manufacturing an engine cover material made of an aluminum sheet, which is formed so as to face each other so as to face each other so as to face each other so as to be opposite to each other.