JPH07194985A - High speed winding-up method and apparatus for cylindrical honeycomb core - Google Patents

Abstract

PURPOSE:To improve productivity by moving a press-bonding roll forward when the tip part of a flat foil is pinched by coiling shaft to press the flat foil to the wind-up shaft rotating the wind-up shaft at low speed and at the same time moving a wavy foil forward to push its tip part together with the flat foil between the wind-up shaft in the way they can be bent, turning over the wind-up shaft once, releasing a wavy plate clamp, and wind-up the foils together. CONSTITUTION:In the case that a flat foil 2 and a wavy foil 3 are layered and coiled to form a cylindrical honeycomb core, at first a press-bonding roll 4 is moved forward when the tip part of the flat foil 2 is pinched by wind-up shaft 1 to press the flat foil 2 to the shaft 1, and the shaft 1 are rotated at low speed and at the same time a wavy foil 3 is moved forward to push the tip part together with the flat foil 2 into the shaft 1 in the way they can bend. Then, the shaft are turned over once, a wavy plate clamp 5 is released, and the flat foil 2 and the wavy foil 3 are wound up together and after that, they are wound at high speed while the end faces of both foils 2, 3 being pressed lightly and the winding speed being elevated. As a result, due to the continuous coiling and the elevation of coiling speed at the time of coiling, the total coiling cycle time is shortened and the productivity of the honeycomb core is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device for a cylindrical honeycomb core used for a catalyst converter carrier for automobiles, and more particularly to a winding device for increasing the winding speed.

[0002]

2. Description of the Related Art A cylindrical honeycomb core of this type is usually
It is formed by stacking flat foil and corrugated foil in a spiral shape to form a cylindrical shape, and an appropriate size of this honeycomb core is inserted and fixed in a metal outer cylinder to form a honeycomb structure. Is used as a metal carrier for an actual automobile catalytic converter.

Various types of apparatuses for manufacturing such a cylindrical honeycomb core have been proposed in the past, for example, JP-A-62-254936 and JP-A-2-24.
1614, Japanese Patent Application No. 3-144440 and the like are known. However, in the conventional honeycomb core manufacturing method and apparatus, particularly in the core winding method and apparatus, the smoothness of the supply of the flat foil and the corrugated foil and the overlapping winding operation of these is emphasized, and the high speed of the whole manufacturing process is performed. There have been almost no proposals that aim to improve the speed (reduction of the winding cycle time).

[0004]

In a usual honeycomb core winding operation, the steps shown in FIG. 1 (b) are performed. That is, the flat foil 2 is horizontally sandwiched between the winding shaft 1 and the winding shaft 1
After rotating by 80 °, the corrugated foil 3 is clamped by the clamp 5 and moved forward to be inserted between the flat foil 2 and the winding shaft 1, and the crimp roll 4 is moved to press the flat foil 2 and the corrugated foil 3 together. In this state, the 2-3 rotation winding shaft is operated to wind up both foils, the pressure-bonding roll 4 is retracted, and the core end surface is lightly pressed,
The pressure-bonding roll is moved forward again to press both foils, and the winding is performed with the winding shaft prevented from coming off. In this step, the corrugated foil 3 is inserted properly between the flat foil 2 and the winding shaft 1, and the crimping roll 4 is raised to press the flat foil and corrugated foil so that the corrugated foil 3 can be wound properly. However, there is a problem in that the number of steps is large and the work is temporarily stopped when the corrugated foil is inserted, resulting in intermittent operation, which lengthens the manufacturing cycle.

The present invention has been made in view of the present situation of such a winding operation of a honeycomb core, and a winding method for shortening the winding cycle time, thereby improving the productivity of the honeycomb core, An object of the present invention is to provide a winding device capable of suitably implementing this method.

[0006]

According to the method for winding a honeycomb core of the present invention, after the flat foil tip that is continuously supplied is sandwiched between the winding shafts, the winding shafts are rotated and then continuously. The tip of the supplied corrugated foil is inserted between the flat foil and the winding shaft, and then the winding shaft is rotated to polymerize the flat foil and the corrugated foil, and the spirally wound coil is wound around a cylindrical honeycomb core. When the tip of the flat foil is sandwiched between the winding shafts, the crimp roll is advanced to press the flat foil against the winding shaft to rotate the winding shaft at a low speed, and at the same time, the corrugated foil is advanced to flatten the tip. Push in the state of bending between the foil and the winding shaft, rotate the winding shaft once to release the corrugated foil clamp and wind the flat foil and corrugated foil together, then lightly press the end faces of both rolled foil materials. It is characterized by increasing the speed while winding.

Further, the winding device of the present invention is a device for continuously supplying a flat foil and a corrugated foil, a winding shaft for sandwiching the flat foil tip and rotating with the corrugated foil to wind both foils, and the winding device. In a winding device for a cylindrical honeycomb core, which comprises a pressure bonding roll provided so as to be able to move forward and backward with respect to a take-up shaft, two sets of the take-up shaft and its holding and driving section having the same structure are arranged, and one set of them is shifted It is characterized in that it is mounted on a trolley so that any one of the winding shafts can be installed at a predetermined winding position.

[0008]

The basic steps of the winding method of the present invention will be sequentially described. As shown in FIG. 1 (a), the flat foil 2 is horizontally sandwiched between the winding shafts 1 and the pressure roll 4 is moved forward to wind. While rotating the take-up shaft 1 at a low speed, the corrugated foil 3 is fed out and pushed between the flat foil 2 and the take-up shaft 1. In this case, the corrugated foil 3 is pushed in such a way as to bend (L in the figure indicates the clamp 5 and the take-up shaft). Distance between 1 and α
Is the amount of deflection). Rotate the take-up shaft 1 once to open the corrugated foil clamp 5, rotate the take-up shaft 1 and lightly press the end face of the core so that both foils do not come off from the take-up shaft for high-speed take-up. To do.

According to the present invention, the corrugated foil is pushed between the flat foil and the winding shaft while bending the corrugated foil while rotating the winding shaft at a low speed while sandwiching the flat foil tip, and at the first rotation of the winding shaft. When the corrugated foil clamp is opened and the shaft cannot be removed from the shaft, high-speed winding is started immediately. As described above, in the present invention, unlike the conventional intermittent operation, all the operations are continuous, and the steady winding speed is faster than that of the conventional one, thereby shortening the overall cycle time.

When the winding mechanism of the winding portion of the present invention completes the winding of one honeycomb core, the core is axially shifted, and the processing after the winding is performed at the position after the shift (core end end). From welding to core ejection)
On the other hand, a new winding shaft is set at the position before the shift and the next winding operation has already started. This shift mechanism also contributes to shortening the cycle time.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the device of the present invention for carrying out the winding method of the present invention will be described below with reference to the drawings. 2 is an overall apparatus showing each mechanism from the feeding of the flat foil and the corrugated foil to their superposition and winding, and FIG. 3 is a detailed view of the winding section in FIG.

In FIG. 2, the winding shaft 1 is held by a flat foil bender / winding shaft insertion guide 6, and the three crimping rolls 4 are arranged at equal intervals around the winding shaft 1 by a cylinder. It is configured to move back and forth in the radial direction. The flat foil 2 and the corrugated foil 3 sent from the flat foil payoff reel 7 and the corrugated foil payoff reel 8 are supplied to the winding shaft 1.
In the figure, 9 is a cutting shear that cuts both foils when wound up to a predetermined outer peripheral length, 10 is a flat foil clamp that can move forward and backward to grab the tip of the flat foil and guide it to the winding position, and 11 is A corrugated foil clamp arranged along the corrugated foil supply line that can move forward and backward, 12 is an outermost peripheral loosening prevention pad of the core at the end of winding, and 13 is a spot welding machine for fixing the core at the end of winding. .

Further, as shown in the drawing, the flat foil 2 and the corrugated foil 3
Although a plurality of guide rolls are appropriately arranged on the supply line from the reel of the above, especially the guide roll 14 arranged in the line of the corrugated foil 3 is formed in a gear shape corresponding to the shape of the corrugated foil. However, when the corrugated foil transport speed planned by the present invention (about 40 m / min, 20 m / min at the most in the past) is generated, tooth skipping of the guide roll may occur, resulting in higher speed. The gear shape of the roll is changed to accommodate it. That is, as shown in FIG.
The width of one tooth is slightly thinner than the conventional one (the shaded area is cut). When the corrugated foil tension increases and the corrugated pitch becomes slightly wider and tooth skipping is more likely to occur, the corrugated foil and the guide roll are reliably meshed by slightly narrowing the tooth width of the guide roll in this way. And the tooth skipping does not occur.

Next, the shift mechanism of the winding section in the apparatus shown in FIG. 2 will be described with reference to FIG. The shift carriage 15 equipped with two sets of a winding mechanism including a winding shaft, a drive unit thereof, a core pressing unit, etc., can be moved (shifted) on the guide 17 in the winding shaft direction by a carriage shift cylinder 16. When the winding of one core is completed, the cylinder 16 is operated to retract the winding mechanism at the winding position and simultaneously move the empty winding mechanism. Since the two winding mechanisms have the same structure and are symmetrically arranged as shown in the drawing, only one of them will be described for convenience.

The winding shaft 1 having a split structure so that a flat plate can be held is attached to a slide unit 18 at one end thereof and is slidable in the axial direction by the operation of the unit. The drive unit of the take-up shaft 1 is configured by providing the take-up shaft 1 with a gear 21a that meshes with a gear 20a driven by a drive motor 19, but is driven by the same motor for stable take-up. The other gear 20b (the output shaft is a spline shaft) is meshed with the gear 21b provided at the opposite end of the winding shaft. A guide 23 that holds down and guides the end surface of the wound core.
The distance between a and 23b can be arbitrarily changed by the side cylinder 22 and corresponds to the axial length of the core.

The case of manufacturing a honeycomb core with the illustrated apparatus will be described. The tip of the flat foil 2 unwound from the flat foil payoff reel 7 is clamped by the clamp 10 and sent to the position of the winding shaft 1. In this case, the winding shaft on the left side (L) in FIG. 3 is inserted for winding. The flat foil 2 guided by the flat foil bender / winding shaft insertion guide 6 into the split winding shaft and bent at its tip is held by the pressure roller 4 that has moved forward after the guide 6 has descended, and is driven by the drive device. It is wound around the winding shaft 1 rotated at a low speed by the operation of 19. Simultaneously with the start of this low-speed rotation, the tip of the corrugated foil 3 is pushed by the clamp 11 so as to bend between the flat foil 2 and the winding shaft 1. When both the flat foil and the corrugated foil are wound around the winding shaft 1, the guides 23a,
23b operates the cylinder 22 to lightly press the end surface of the core to prevent both foils from coming off the shaft, and the winding rotation speed is increased to start the steady winding operation.

The drive motor 19 is stopped when the core becomes thick and the outer diameter reaches the target outer peripheral length -α, and the cut shear 9
The flat foil and the corrugated foil are cut by, and then they are rotated again to wind up the outer peripheral end portion, and the loosening prevention pad 12 fixes the end of the flat foil 2 to the outer periphery of the core. Next, the shift cylinder 16 is operated to shift the shift carriage 15 to the left side, and the waiting right side (R) winding mechanism is set to the winding position. Immediately in the same process as above, the next flat foil is removed. The winding operation of the corrugated foil is started. In the winding mechanism on the left side, which is taken out of the line, the spot welding machine 13 is used after the end surface of the winding-completed core is hard pressed.
The winding end is fixed by welding. After that, the honeycomb core from which the winding shaft 1 has been removed from the core by the slide unit 18 is transferred to the next step by the core payout device.

[0018]

According to the winding method of the present invention as described above, the continuous winding time and the speed of rotation at the time of winding can be shortened, so that the entire winding cycle time can be shortened. It is possible to improve productivity. Further, there is an advantage that the above method can be carried out in a suitable state by the winding device of the present invention and the conventional equipment can be used as it is in terms of equipment.

[Brief description of drawings]

FIG. 1A is an explanatory view showing a basic step of a winding method of the present invention, and FIG. 1B is an explanatory view showing a step of a conventional winding method.

FIG. 2 is an overall explanatory view showing an outline of winding equipment for carrying out the method of the present invention.

FIG. 3 is a side view showing a woman and a mechanism of the winding portion of FIG.

FIG. 4 is a partially enlarged view showing a preferred shape example of a corrugated foil guide roll.

[Explanation of symbols]

1 winding shaft 2 flat foil 3 corrugated foil 4 crimping roll 5 corrugated foil clamp 6 bender insertion guide 7 flat foil payoff reel 8 corrugated night payoff reel 9 cut shear 10 flat foil clamp 11 corrugated foil clamp 12 loosening prevention pad 13 spot welding Machine 14 Guide roll 15 Shift carriage 16 Shift cylinder 17 Guide 18 Slide unit 19 Winding drive motor 20, 21 Gear 22 Core end face press cylinder 23 Winding guide

Claims (2)

[Claims] 1. A flat foil tip and a take-up spindle which are fed continuously after the flat foil tip which is continuously fed is sandwiched by a take-up spindle and after which the take-up spindle is rotated. In the method of winding the flat foil and the corrugated foil by superimposing the corrugated foil on the cylindrical honeycomb core by inserting the flat foil and the corrugated foil into a cylindrical honeycomb core, The crimp roll is advanced to press the flat foil against the take-up shaft to rotate the take-up shaft at a low speed, and at the same time, the corrugated foil is advanced to push the tip of the corrugated foil into a state in which it bends between the flat foil and the take-up shaft, and winds it. Cylindrical honeycomb characterized in that the winding shaft is rotated once to release the corrugated foil clamp, the flat foil and corrugated foil are co-wound, and then the speed is increased while lightly pressing the end faces of both wound foil materials and the speed is increased. High-speed winding method of core. 2. A device for continuously supplying a flat foil and a corrugated foil, a winding shaft for winding the both foils by sandwiching the flat foil tip and rotating together with the corrugated foil, and being capable of moving forward and backward with respect to the winding shaft. In the winding device of the cylindrical honeycomb core consisting of the pressure bonding roll provided,
Two sets of the same structure of the winding shaft and the holding drive unit thereof are arranged, and these are loaded on one shift trolley so that any one of the winding shafts can be installed at a predetermined winding position. Winding device for a cylindrical honeycomb core.