JPH11192600A - Feed gear for fin press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device capable of freely controlling a feed length electrically, to program preliminarily the feed length and the number of times for feeding, and to enable an efficient continuous operation. SOLUTION: A slider 18 is installed in the guide rail 17, 17 of a feed gear 32, and is provided with a magnetic plate 19B of a linear motor; correspondingly, a bracket 16 is provided with a coil part 19A of the linear motor. In addition, the slider 18 is provided with a read part 20A facing the bracket 16 side and with a linear scale 20. Each oppositely faced slider 18 of the feed gear 32 is connected to both ends of a feed bar 22 with the linear motor electrically controlled by an NC program, and with the position feed-back controlled by the linear scale 20, so that an arbitrary feed length is obtained freely changeably with high precision.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a fin press for processing heat exchange fins having equal pitch holes, and intermittently feeds a continuous sheet-like workpiece to a fin mold at a required feed pitch. Regarding the fin press feeder, the feed pitch of the material can be set in advance, which is effective when the fin press preparation operation time is to be reduced.

[0002]

2. Description of the Related Art Conventionally, a feeder which is attached to a press machine for processing heat exchange fins and feeds a material to be processed intermittently at a required feed pitch is disclosed in, for example, Japanese Patent Application Laid-Open No.
There is a hitch feeder shown in FIG. As shown in FIG. 12A, a connecting rod 2 is connected to an eccentric pin of a crank 1 which rotates synchronously with a press machine,
A first link 4 swinging about a pin 3 and a second link 7 connected to a lever 6 rotating about a fulcrum shaft 5 are connected to a pin 8 at the lower end of a connecting rod 2, and the crank 1
The connecting rod 2 reciprocates the lever 6 via the first link 4 and the second link 7 by the rotation of the lever 6, and the feed bar 10 is connected to the link 9 shown in FIG. The material 14 is reciprocated along the guide rod 11, and the material 14 is required by engaging the movable hitch 12 urged upward by the spring force from the upper surface of the feed bar 10 with the fixed hitch 13 of the fixed portion. Was sent by the feed length.

[0003]

In order to efficiently manufacture the heat exchange fins 15, FIGS.
The two-hole feed shown in (b) or the three-hole feed shown in FIG. 11C is performed, whereby the feed length P is determined. The material 14 punched by a fin press (not shown) is fed by a hitch feeder, and an arrow is drawn. Cut at the position of A and the position of the two-dot chain line. The heat exchange fin 15 has a case where the number of holes is even as shown in FIG. 11A and a case where the number of holes is odd as shown in FIGS. 11B and 11C. In the case of an even-numbered hole, the feed length is equal pitch P, which can be handled by the above-described hitch feeder. In the case of an odd-numbered hole, the feed length of 1/2 · P or 2/3 · P is used at the cutting position A. It is necessary to change to
Since the amount of eccentricity of the crank 1 of FIG. 2A is adjusted each time, there is a disadvantage that it is extremely inefficient.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a device which can electrically control the feed length freely. The feed length and the number of feeds are set in advance in a program, so that the fin press can be efficiently operated continuously. To provide a feeding device.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a fin mold which extends in the width direction of a material below an exit side of a sheet-like material which has been drilled with a fin mold. The guide bar provided at the end is reciprocally guided in the feed direction, and feeds the material by reciprocating a feed bar that engages a plurality of hitches protruded from the upper surface with a processing hole of the material by a spring force. Fin press feeder for
Brackets provided opposite to each other on the press frame portions on both sides above the feed line of the material corresponding to the feed bar,
A slider on which a linear scale fixed to a magnet plate of a linear motor and extended in the feed direction is fixed, and a magnet plate, which is guided reciprocally by guide rails provided in parallel with a feed line on opposite surfaces of the bracket, and a magnet plate. And a coil portion of a linear motor provided on the bracket, extending in the feed direction,
A linear scale reading unit is provided facing the linear scale and fixed to the bracket, and the lower end of each slider and both ends of the feed bar are connected by hitch links.

[0006]

1 to 10 show an embodiment of a fin press feeder according to the present invention. 1 to 3 show the configuration of the feeding device 32. FIG. The bracket 16 to be attached to the fin press has a rectangular shape that is long in the feeding direction, and has two guide rails 17 long in the feeding direction on a surface on the side of the material to be fed, which will be described later. The feed slider 18 is slidably guided by the guide rails 17 and 17 and is reciprocally movable in the feed direction. Slider 1
8, a magnet plate 19B of a linear motor 19, which is long in the feed direction, is attached to the center of the guide rail 17 on the guide rail 17 side, and the bracket 16 is provided with a coil portion 19A of the linear motor 19 facing the magnet plate 19B. ing. The slider 18 is provided with a linear scale 20 that is long in the feed direction corresponding to the reading unit 20A and has a length corresponding to the reciprocation of the slider 18, and the bracket 16 reads the linear scale 20 toward the slider 18. The part 20A is attached to one corner.

[0007] At both ends where the slider 18 reciprocates, the slider 1 when the power supply of the linear motor 19 is stopped in an emergency is stopped.
Stoppers 21 and 21 for stopping runaway of 8 are provided on the bracket 16. A protrusion 18A is provided below one end of the slider 18 on the fin press side in the feed direction, and the protrusion 18A is connected to one end of the feed bar 22 by a hitch link 23. The connecting portion between the hitch link 23 and the feed bar 22 is provided with a cushioning elastic body 23A. In addition, since the feeding device 32 is used by providing one set facing the both sides in the feeding direction, the feeding device 32 has a symmetrical configuration so that the inside facing each other becomes the slider 18. The portion 18A is connected to both ends of the feed bar 22 by a hitch link 23 and used.

FIGS. 4 and 5 show a mode in which the feed device 32 is mounted on the fin press 24. FIG. Above the sheet-like material 26 protruding to the exit side of the fin mold 25 attached to the fin press 24, the material 26
Of the slider 18 of the feeder 32 on both sides of the width
A, and a pair of feeders 32, 32
The mounting surface 16A of the bracket 16 shown in FIG.

In press working with the fin press 24, as shown in FIG. 4, a material 26 is fed into a fin mold 25 via a material feeding device 33, and the operation mode of the fin press 24 is set to a jogging operation. Is carried out, and the material 26 is fed by the material feeding device 34 until a processing hole required for using the feeding device 32 can be pressed. The pressed material 26 is conveyed by the feeder 32 and is fed to the fin mold 25.
Is cut to a predetermined length by a cutter 37, and is conveyed to a stacker device 36 by a vacuum device 35. In addition, as the terminal treatment of the material 26, depending on the condition of the material 26, the material is fed into the fin mold 25 by the material feeding device 34 to a length that can be fed into the fin mold 25, and the remaining material 26 is discarded by press working, or Methods such as disposal while retaining the length are taken.

FIGS. 6 to 8 show a feed bar 2 shown in FIG. 5 in which a slider 18 is connected to both ends by hitch links 23. FIG.
2 is shown below. As shown in FIG. 7, the feed bar 22 connected to the protrusion 18A of the slider by the hitch link 23 is provided with a length protruding on both sides of the width of the material (not shown).
Guide rod 2 provided in fin mold 25 with feed direction
Guided at 8, 28. As shown in FIG. 8, the feed bar 22 and the fin mold 25 are provided with a movable hitch 29 and a fixed hitch 30 which are urged by a spring and project from the upper surface by a certain length.

As the slider 18 moves to the right in FIGS. 6 to 8, the moving hitch 29 of the feed bar 22 feeds the material 26 to the right. At this time, the fixed hitch 30 enters the hole 26A of the material 26 by pushing the inclined surface, and when the moving hitch 29 stops, the fixed hitch 30
Project through the hole 26A. The feed length is determined according to the pitch of the holes 26A, and the feed bar 22 reciprocates together with the slider 18. Next, when the moving hitch 29 is retracted to the left, the hole 26A of the material 26 stopped at the fixed hitch 30.
When the moving hitch 29 enters and is stopped from retreating, the movable hitch 29 protrudes into the next hole 26A. By repeating this, the material 26 is fed by an integral multiple of the required hole pitch (see FIG. 11).

FIG. 9 shows a control system for controlling the linear motors 19 of both sets of feeders to reciprocate the slider with a required feed length. A plurality of linear motors 19 provided in each feeder are controlled by a two-axis controller 31 in a simple synchronous manner. By setting the required feed length, the number of feeds, and the feed length to be changed in advance in the two-axis control device 31 as an NC program and operating the feed bar 22, the feed bar 22 can be reciprocated as required.
The position of the slider is feedback-controlled by the linear scale 20 to improve the accuracy of the reciprocating feed length.

FIG. 10 shows a command program for the two-axis control device 31 shown in FIG.
The start signal is output at 0 ° and the feed bar is moved forward in the feed direction between 270 ° and 0 ° and 90 °,
A reverse movement is provided between 80 ° and 270 °.
When the crankshaft of the fin press rotates at 300 revolutions / minute, one cycle of reciprocation is 200 ms.

[0014]

As is apparent from the above description, according to the present invention, the feeder is provided with a slider which can be controlled by a linear motor, and the feed bar is reciprocated by the slider. Is set, the feed bar is operated, the feed length and the number of feeds can be freely controlled, and there is no need to stop the fin press in the middle, so that the productivity is greatly improved. In addition, since the structure of the feeder is simple and the feed system is high, the quality of the product is improved, and the NC program may be changed when changing the product,
Preparation work can be done in a short time.

[Brief description of the drawings]

FIG. 1 is a front view of a feeder for a fin press according to an embodiment of the present invention.

FIG. 2 is a side view of a main part of a feeder for a fin press.

FIG. 3 is a plan view of a main part of a connecting portion between the feeder and the feed bar.

[FIG. 4] Similarly, a front view of a fin press equipped with a feeder.

FIG. 5 is also a side view of a fin press equipped with a feeder.

FIG. 6 is a front view of a connection portion between a slider and a feed bar portion of the feeder.

FIG. 7 is a plan view of the main part of the entire slider and feed bar of the feeder.

8 is a sectional side view of a main part of FIG. 7;

FIG. 9 is a block diagram of a control system of the feeder.

FIG. 10 is also a control program command diagram.

11A is a plan view of a two-hole feed even-numbered hole showing the production of heat exchange fins. FIG. 11B is a plan view of a two-hole feed odd-numbered hole showing the production of heat exchange fins. Top view of odd holes with 3 holes feed

FIG. 12 is an explanatory view of a conventional example.

[Description of Signs] 15 is a heat exchange fin, 16 is a bracket, 16A is a mounting surface, 17 is a guide rail, 18 is a slider, 18A
Is a projecting portion, 19 is a linear motor, 19A is a coil portion, 1
9B is a magnet plate, 20 is a linear scale, 21 is a stopper,
22 is a feed bar, 23 is a hitch link, 23A is an elastic body, 24 is a fin press, 25 is a fin mold, 26 is a material, 26A is a hole, 27 is a press frame, 28 is a guide rod, 29 is a moving hitch, 30 Is fixed hitch, 31 is 2
Axis control device, 32 is a feeding device, 33 is a material feeding device, 34 is a material feeding device, 35 is a vacuum device, 36
Is a stacking device, and 37 is a cutter.

Claims (1)

[Claims] 1. A sheet-like material having a hole formed by a fin mold, which extends in a width direction of the material below an outlet side thereof and is reciprocally movable in a feed direction by a guide rod provided at an end of the fin mold. A fin press feeder for feeding the material by reciprocating a feed bar that engages a plurality of hitches, which are guided and project from the upper surface by a spring force, into the processing holes of the material, comprising: A bracket provided opposite to the press frame portion on both sides above the feed line of the material corresponding to the bar, and (b) a reciprocating guide rail provided on the opposing surface of the bracket in parallel with the feed line. A slider which is movably guided and has a linear scale fixed to the linear motor magnet plate and the feed direction,
(C) a coil portion of a linear motor that is provided on the bracket and extends in the feed direction, facing the magnet plate, and (d) a linear scale reading unit that faces the linear scale and is fixed to the bracket. A feeder for a fin press, wherein a lower end of each of the sliders and both ends of the feed bar are connected by a hitch link.