JPS63119817A - Filter paper folding device - Google Patents

Abstract

PURPOSE:To improve filter capacity by folding filter paper so as to have a series of crowded parts folded in the outside space as dense as possible when folded in a bellows-shape and rolled in a cylindrical shape. CONSTITUTION:A servo-motor 35 for an upper knife and a servo-motor 36 for a lower knife are moved in accordance with a specified program and the reciprocating heights of the upper knife 23 and the lower knife 24 fixed integrally to movable arms 3, 4 are varied, and the moving depths of the upper and the lower knives, are varied correspondingly to the position of the filter paper rolled off. As a result, the folded depth of the filter paper is freely changed, and the filter paper can be folded in such a way that a series of crowded parts is interposed in the outside space where the filter paper becomes coarse in opening in a peripheral direction when it is rolled in a cylindrical shape.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention mainly relates to a filter paper folding device for automobile oil filters, air filters, air conditioning filters, vacuum cleaner filters, and the like.

(B) Prior Art Conventional folded filter paper of this type has been put into practical use in a constant folding manner in which it is folded in a bellows-down manner with a constant stroke as shown in Fig. 7. When rolled into a cylindrical shape, which is the type of use, the folding intervals are dense on the inside, but sparse on the outside, opening in the circumferential direction, so from the perspective of filter performance, there is a lot of wasted space, which reduces filter efficiency. This has become an important factor hindering the improvement of

(c) Problems to be solved by the invention The problems to be solved by the invention are as follows:
When it is rolled into a cylindrical shape, the filter performance is greatly improved by inserting a series of crowded parts that can be folded in to make the outer space open in the circumferential direction as dense as possible. It is an object of the present invention to provide an improved filter paper folding device.

(d) Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a movable arm for the upper blade and a movable arm for the lower blade, each having a coaxial fulcrum that reciprocates up and down in a hanging manner, and a movable arm for the lower blade. a vertically moving cam for the upper blade and a vertically moving cam for the lower blade that alternately reciprocate the movable arm for the lower blade and the movable arm for the lower blade; a blade holder that is swingably attached to the tip of each movable arm; Upper and lower blades fixed to the respective blade holders so as to be able to move in face-to-face contact with each other, a movable holder provided integrally with each of the blade holders, and an upper blade for slidingly guiding the respective movable holders. One of the movable arms moves forward through the slide shaft and the lower blade slide shaft, and the upper blade slide shaft and the lower blade slide shaft, thereby causing the upper blade and the lower blade to move.

The slide shaft associated with the other movable arm, which was stationary when separated, is slightly vibrated forward at right angles to the blade, and when one of the movable arms moves back, the contact surfaces of the upper and lower blades are reversed. The contact surface switching cam for the upper blade and the contact surface switching cam for the lower blade, and the vertical movement cam for the upper blade and the vertical movement cam for the lower blade are configured to be automatically movable in the vertical direction independently of each other. The filter paper folding device includes an automatic vertical movement cam position control means that changes the height of the reciprocating position of the movable arm by displacing the position thereof.

(e) Effect Next, the operation of the present invention will be explained.

When the drive device is activated to rotate the upper blade vertical movement cam and the lower blade vertical movement cam, the upper blade movable arm and the lower blade movable arm, which are coaxially supported in a hanging manner, move with a -cycle phase difference from each other. Move back and forth. That is, when one of the upper blade movable arm and the lower blade movable arm is moving, the other is fixed.

The blade holder is swingably attached to the tip of the movable arm, and a movable holder provided integrally therewith is slidably guided along the slide shaft in response to vibrations of the tip of the movable arm.

At the same time, the slide shaft vibrates slightly forward at right angles to the blade due to the rotational movement of the contact surface switching cam, so that one of the upper and lower blades supported by the blade holder is moved so that they can come into contact with each other. It reciprocates in the vertical direction by the vertical vibration of the movable arm and the rotational movement of the contact surface switching cam,
When the upper and lower blades separate due to the reciprocation, the other stationary upper or lower blade vibrates slightly forward at right angles to the blade, thereby relatively switching the front and rear positions of the upper and lower blades. , As a result, the contact surfaces of the upper and lower blades are reversed when making a double movement,
At this time, the filter paper that is fed out from the feeding position between the upper blade and the lower blade is folded in by one of the reciprocating blades using the other stationary blade as a fulcrum.

Then, conversely, one of the upper or lower blades that has moved reciprocatingly comes to rest, and the other stationary upper or lower blade moves back and forth, and the filter paper uses one of the stationary blades as a fulcrum and the other reciprocating blade. It is folded in from the opposite direction. Prior to this, the filter paper is engaged with the movable blade and fed forward by the relative switching movement of the front and back positions of the upper blade and the lower blade.

Thereafter, the filter paper is folded while repeating the relative movement of the upper and lower blades in the same way, but in the folding process, the vertical movement cam for the upper blade and the vertical movement cam for the lower blade are set in a predetermined program. By individually changing the position to a predetermined position in the vertical direction, the height of the reciprocating position of the movable arm, that is, the height of the reciprocating position of the upper blade or the lower blade, changes, thereby changing the height of the reciprocating position of the upper blade or lower blade. The penetration depth of the upper blade or the lower blade changes with respect to the feeding position, so that there are depths and shallows in folding the filter paper, and the filter paper can be folded with a continuous intervening part.

(F) Example Hereinafter, an example of the present invention will be described with reference to the drawings.

On both sides of the image 1, a movable arm 3 for an upper blade and a movable arm 4 for a lower blade, which reciprocate vertically in a hanging manner, are supported by a shaft 5 on a shaft bearing 2 provided in the upper center. The movable arm 4 for the lower blade is usually formed so that its tip is located above the shaft support, and a cam stop 6 is integrally installed in the middle behind the shaft support diagonally rearward. The tip portion is formed so as to be located below the shaft support, and a cam abutment 7 is integrally and diagonally installed diagonally forward in the middle in front of the shaft support at a symmetrical position to the cam abutment 6. The vertical movement cam 8 for the upper blade and the vertical movement cam 9 for the lower blade, which are in contact with the side surfaces of the cam rest 6.7, respectively, are mounted on separate frames 10.11 of the gearbox 1.
2.13 and are fixed to both ends of a horizontally installed rotating shaft 15.16 via camp rings 14.14, and in this case, the vertical movement cam 8 for the upper blade and the vertical movement cam 9 for the lower blade are the same. A semicircular portion 8a, 9a having a radius and a circular arc surface 8b, 9b having a larger radius of curvature formed by connecting both ends of the semicircular portion are folded in half approximately 180 degrees each, and the upper and lower blades are formed by folding in half approximately 180 degrees each. The vertically movable cams 8 and 9 have a rotational phase difference of 180 degrees from each other.

Therefore, while the semicircular portion 8a of the cam 8 is in contact with the cam abutment 6, the cam abutment 6 is stationary, but when the arcuate surface 8b is in contact with the cam abutment 6, the cam abutment 6 has a movable arm for the upper blade. 3 is given a rocking motion in the direction of reciprocating up and down. On the other hand, while the semicircular portion 9a of the cam 9 is in contact with the cam abutment 7, the cam abutment 7 is stationary; however, when the arcuate surface 9b is in contact with the cam abutment 7, the cam abutment 7 is movable for the lower blade. A swinging motion is applied to the arm 4 in the direction of reciprocating it up and down.

Therefore, since the vertical movement cam 8 for the upper blade and the vertical movement cam 9 for the lower blade have a rotational phase difference of 180 degrees, the movable arm 3 for the upper blade and the movable arm 4 for the lower blade alternately reciprocate. be done.

A blade holder is provided at the tip of the upper blade movable arm 3 and the lower blade movable arm 4 through connectors 19 and 20 that are guided through long holes 17 and 18 drilled in the image 1, respectively, so as to be able to swing freely. body 21
．． 22, and an upper blade 23 and a lower blade 24 are fixed to the blade holders 21 and 22 so that they can move into contact with each other.

Each of the blade holders 21 and 22 has a movable holder 25.
, 26 are integrally provided, and the movable holder 25.26 is slidably fitted to the upper blade slide shaft 27 and the lower blade slide shaft 28, and the upper blade slide shaft 27 and the lower blade slide shaft When one of the movable arms 3.4 moves forward and the upper blade 23 and lower blade 24 are separated, the slide shaft 28 moves the slide shaft 27 or 28 associated with the other stationary movable arm with respect to the blade. 3. The movable arm is slightly vibrated forward at a right angle.
When one of the blades 4 moves back, the contact surfaces of the upper blade 23 and the lower blade 24 are switched using L-shaped splints 29 and 30 connected to the ends of each slide shaft 27 and 28, so that the contact surfaces of the upper blade 23 and the lower blade 24 are reversed. It is pressed against the cam 31 and the lower blade contact surface switching cam 32 by springs 33 and 34. The vertically arranged screw punches 37 and 38 were rotated by the drive of the separate upper blade servo motor 35 and the lower blade servo motor 36, thereby fixing the NAND bodies 39 and 40 fitted into the screw punches 37 and 38. The pedestal 10.11 moves up and down depending on the direction of rotation of the screw punches 37, 38. Therefore, the upper blade vertical movement cam 8 and the lower blade vertical movement cam 9 fixed to both ends of the rotating shaft 15.16 horizontally installed on the frame 10.11 move up and down, and thereby the cam 8.9 The position where it contacts the cam contact 6.7 moves up and down,
Correspondingly, the height of the position where the movable arm 3.4 reciprocates up and down changes.

Therefore, by individually operating the upper blade servo motor 35 and the lower blade servo motor 36 according to a predetermined program, the upper blade 23 and the lower blade 24, which are integrally fixed to the movable arm 3.4, are reciprocated. The height changes, thereby changing the penetration depth of the upper blade 23 or the lower blade 24 with respect to the feeding position of the filter paper A, and freely changing the folding depth to the filter paper A. It is possible to interpose a series of crowded portions a as shown in FIGS. 5 and 6 and fold them.

41 is a motor that rotates the upper blade vertical movement cam 8 and the lower blade vertical movement cam 9; a transmission 42; a reduction gear 43;
A splined shaft 44 is associated with the gearbox 12 via a splined shaft 44 .

45.46 is a binion fixed to the frame 10.11,
Rank 47.48 fixed perpendicularly to a predetermined part of image 1
This is to stabilize the horizontal position of the pedestal by engaging with the mount.

49 is a motor that rotates the upper blade contact surface switching cam 31 and the lower blade contact surface switching cam 32, and idlers 50, 51. It is synchronized via chain 52.

53 is a flywheel handle for adjusting the upper and lower blades.

54.55 is a bullet that constantly applies a bullet Ia force in the direction of the cam 8.9 to the cam contacts 6 and 7 to increase the responsiveness of the backward motion of the movable arm 3゜4! It is a button body.

Reference numeral 56 denotes a heater that heats the folded filter paper to fix the folded state, and is designed so that the insertion of the folded filter paper can be appropriately adjusted by manual operation of handle shafts 57 and 58.

(g) Effects of the Invention As is clear from the above description, when the folding depth of the filter paper is automatically changed according to a predetermined program and the filter paper is rolled into a cylindrical shape, It can be folded in with a series of intervening crowded areas that can fill in the outer space, which becomes sparse when opened, as densely as possible.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a front view showing the structure of one embodiment of the present invention, Fig. 2 is a front view showing the structure of the same filter paper insert, and Fig. 3 is Fig. 1A-
4 is a front view showing the internal structure, FIG. 5 is a state diagram showing an example of filter paper folding molding, FIG. 6 is a state diagram showing another example of filter paper folding molding, and FIG. 7 is a state diagram showing another example of filter paper folding molding. 1 is a state diagram showing an example of conventional filter paper folding molding. 3... Movable arm for upper blade, 4... Movable arm for lower blade, 8... Vertical movement cam for upper blade, 9.
・・・・・・Vertical movement cam for lower blade, 21.22・・・・・・
Blade holder, 23... Upper blade, 24... Lower blade, 25.26... Movable holder, 27...
... Slide shaft for upper blade, 28 ... Slide shaft for lower blade, 31 ... Contact surface switching cam for upper blade, 32.
・・Contact surface switching cam for lower blade Fig. 4

Claims (1)

[Claims] The movable arm 3 for the upper blade and the movable arm 4 for the lower blade are coaxial supports that reciprocate vertically in a sliding manner, and the movable arm 3 for the upper blade and the movable arm 4 for the lower blade alternately reciprocate. A movable cam 8, a vertical movable cam 9 for the lower blade, and each movable arm 8
, 9, the blade holders 21 and 22 are swingably attached to the tips of the blades 21 and 9.
and an upper blade 23 and a lower blade 24 fixed to the respective blade holders 21 and 22 so as to be able to move into contact with each other, and each of the blade holders 21
, 22, movable holders 25, 26, an upper blade slide shaft 27 and a lower blade slide shaft 28 that slide and guide the movable holders 25, 26, and the upper blade slide shaft 27. The lower blade slide shaft 28 is connected to the movable arm 3.
, 4 moves forward and the upper blade 23 and lower blade 24 are separated, the slide shaft related to the other stationary movable arm is slightly vibrated forward at right angles to the blade, and the movable arm is moved forward. A contact surface switching cam 31 for the upper blade and a contact surface switching cam 32 for the lower blade that reverse the contact surfaces of the upper blade 23 and the lower blade 24 when one side moves backward, and the vertical movement cam 8 for the upper blade and the lower blade The movable arm 3 is configured such that the blade vertical movement cam 9 can be automatically moved in the vertical direction independently of each other, and its position is displaced.
, and automatic vertical movement cam position control means for changing the height of the reciprocating position of the filter paper folding device.