US1777150A - Pressing machine - Google Patents

Description

Sept. 3@, 1930.. I R, Q PAULY 1,777,150,

PRESSING MACHINE Filed June 22, 1928 4 SheetsSheet 1- 11V VliN T OR Sept. 30, 1930. PAULY 1,777,150

PRESSING MACHINE Filed June 22, 1928 4 She ets-Sheet' 2 IN V/iN TOR U. W

wk r AZTOR EYS Sept 30, 1930. R. c. PAULY PRESSING MACHINE Filed Jun 22, 9 8 7 4 Sheets-Sheet Sept. 30, 1930. R. c. PAULY PRESSING MACHINE Filed June 22, 1928 4 Sheets-Sheet 4 WET WA w at Patented Sept. 30, 1930 UNITED STATES PATENT? OFFICE ROBERT C. PAULY, OF AVONDALE, OHIO, ASSIGNOB TO THE AMERICAN LAUNDRY 11A- CHINEBY COMPANY, OF- CINCINNATI, OHIO, A CORPORATION OF OHIO PZRESSING MACHINE Application filed June 22,

This invention relates to pressing machines and particularly to controlling mechanism for presses of the full automatic type although the invention in some respects has application to power mechanism applied to final pressure means utilized in conjunction with the hand closed and after power type of pressing machine.

With the application of power to pressing machines of the full automatic type and the hand closed and after power type, it is important, especially where the motor is started and released at the proper time with respect to the power means, and specifically, so that the application of the brake will always-be accompanied by the disconnecting of the motor circuit of the power means and vice versa.

The invention will bemore fully brought out in the following description, drawings and claims.

In the drawings, Fig. 1 shows a type of pressing machine to which the invention is applied and also shows certain details of the mechanism used in bringing about the-invention; Fig. 2 is a view partly in horizontal section and partly in'plan showing'some of the mechanism; Fig. 3 is a perspective view of the motor and'brake control mechanism with parts removed and broken away Fig. 4 1s a detailed view showin one of the operator pperated controlling evices; Fig. 5 is a similar view'looking 'at the rear of this device; 5 i s' a detailed view of the brake mechan sm; Fig. 7 is a view of'this same mechanism in side elevation; Fig. 8 is a view in section and broken away showin the controller of the switch mechanism; ig. 9 is a section upon'the'line 9+9 of Fi I 8; Fi 10 isa cross sectional view. taken ack o the switch fingers and showing the switch throwing mechanism on the end of the crank shaft;

in Fig. 1, byv reason 1928. Serial No. 287,892.

back is a head supporting arm 5 carrying a pivotxfi upon which a head lever is pivoted.-

This head lever comprises a forwardly ex-' tending portion 7 carrying the head 8 and a rearwardly extending 1 portion 9 having spaced side portions as indicated in Fig. 1. These spaced side portions 9 carry studs 10 pivotally supporting the swivel block 11." They also support a saddle or yoke 12 also pivoted on these studs and adapted to swing over the head 13 of a push rod 14. extending downward at the rear and pivotally connected at 15 to a link 16 in turn pivoted at 17 to the rear. short arm 18 of a power applying lever 19. This lever is pivoted on the frame at 19.

Pivoted at the point 15 is another link 20 extending toward the front and connected the outer end of a press closing lever 21 pivoted at 22 to the frame. This lever is provided with a diagonal slot 23 adapted to be engaged by a roller 24 mounted upon the uper end of an arm 25 forming a part of the ever '19. This lever 19 is connected at 26 to a" link 27 connected in turn at 28 to a crank 29 on the crank shaft 30. The head lever normally assumes open osition or that shown of the action of a spring 31 connected to the head trunnions 10 and to the pivot 19 of the power lever. The saddle or yoke 12 is provided with a downwardly and rearwardly extending arm 32 connected by a rod 33"with a two-armed lever 34 pivoted in the frame at 35 and hav ing itsdower'short arm connected by a pull rod 36 with the rear lever arm 37.'of a hand lever 38 at the front of the machine and sup; ported for movement at the front edge of the work board 2.

The crank shaft 30 is driven by a suitable worm wheel 39. o worm shaft 41a ratedb aworm40ona. arrange ma worm lever projects upward, as clearly able motor 43 mounted upon a suitable platform '44 secured to the frame.

The mechanism thus far described m'erely sets forth a tyg of press u on which this invention may utilized and forms no part of this invention except in so far as it may enter into the organization.

The control and brake mechanism will now be described. Secured to the frame at m the end of the shaft is a controller box 45 having mounted therein below the axis of the shaft 30, but in parallel alignment therewith, a switch actuating shaft 46 cara pair of insulating blocks 47 and 48, 15 ig. 1% These insulating blocks carry conducting bridges 49, 50, 51 and 52 respectivelgl,1 adapted to cooperate with conducting gets 53,- 54, 55 and 56 for establishing the proper circuits, as will later appear. These fingers are supported upon a suitable rod or bar 57 carrie by the box 45. The shaft 46 is also provided with a suitable pinion 58, Figs. 10 and 11, adapted to mesh with a rack 59 forming a part of an actuatg5 ing rod 60 mounted to slide in suitable bearin the box and extend out at the rear w ere it is 61. The rod 60 is also provided with upstanding fingers 62 and 63 separated and 3 on both sides of a sw1tch neutral= 11mg mechanism comprising a disk 64 ri idly secured to the end of the crank sha 30 and of mutilated form providing a tail ortion 65 to the rearof a roller 66. The as irection of rotation of the shaft 30 is clockwise, as shown in Fig. 10. The disk 64 also has pivoted to it at 67 a lever 68 extending on both sides of the pivot and provided at one end with a roller 69 and at the other throw the roller 69 outward. The mechanism described is for the purpose of engag ng the fingers 62 and 63 and moving the switch back to neutral position for the chine, as will later a pear.

If nry, the r 60 ma be prevented a from bein moved accidental y by a spring p be 69' suitably sup rted on the box 45 and engaging in a suite le recess 60" in the shaft and so located thatit registers with the ball when the movable switch element, comprising the members 47 and 48, 1s

' in neutral position as shown in Fig. 9.

Secured to the box 45 isa lever bracket lever 72 pivoted intermediate its ends to the bracket at 73... The lower end of this lever 1s over'the box and ivotall connected at a point 75 to a lever 6 which is pivoted at 77 to the frameof the worm-housin. This own in Fig. 8, and is connected at its upper end as rovided with a suitable clevis and connected to a spring 70 adapted toestabiishment of the part cycles of the ms-' the rake band. The push rod 101 carries 71, Fig. 9, supporting-aswitch actuating at 78 to a pull rod 79 extending upwardly and forwardl where it en ages a downwardly exten ing arm 80 o a hand lever 81 pivoted at 82 to a bracket 83 secured to the underside of the front edge of the work board2. The bracket 83 is provided with a keeper 84 adapted to be engaged bythe book 85 of a latch lever 86 pivoted at 87 to the handle 81 and forced into a position to enga the keeper by a suitable spring 88.

It w1l be seen from the foregoing and with particular reference to Fig. 4, that the operator may grasp the handle 81, actuate the latch 86 and release the handle so that it maybe depressed. The depression of this handle causes the lever 72 to be moved in a counter-clockwise direction moving switch rod 60 to the right, as shown in Figs. 9, 10 and 11 causin certain switch operations which will be escribed.

The coupling member 42 is provided with a brake drum 42 and it is adapted to be en a ed by a brake band 89 adjustably'dead en e at 90 in a frame part 91 secured to the platform'44 and having at its upper end spaced bearings 92 and 93. This frame part 91 is braced by a suitable bracket 94; The bearin s 92 and 93 support the brake actuating ro 95 which is rovided between the bearings, 92 and93, with a brake release actuator in the form of a double cone comprising the high cone parts 96 and the low cone part 97. .Be 0nd the bearing 92, the rod 95 receives at rust spring 98 thrusting against the bearin and against a collar 99 secured to the ro The tendency of this s ring is to thrust this rod to the left, as shown in Fig. 6, thereby 'setting the brake and returnin the controller to neutral 'or off position. he-rod at its opposite end is provided with"'a clevis 100 pivotally connected to the lever 76, as shown in Fig. 3. The frameart 91 also supports a push rod ivotai y connected to the loose end of at its upper end a thrust washer 102 engaging a sprm .103. between it and a stationary part 0 the frame part 91. This spring normally tends to set the brake and when the push rod is opposite to the low oint 97 of the double cone, it produces raking action upon the brake drum and contrariwise-,when the rod 95 is shifted to one side'or the other, the push rod ismovcd downward by parts of the double cone and the brake is released.

The electric circuit for the motor means is I the line 106 to the motor 43, thence through lease operation,

' rod 60.

jwhen the motor circuit position.

the line 107 to the contact 53, thence across the bridge contact 51 to the contact 54 and thence through the line 108 to the right hand blade of the switch 104 to L For the rethe same circuiting takes place except that in place of the bridge contacts 49 and 51 being in engagement with the contacts 56, 55, 54, 53, the bridge contacts 50 and 52 are used, they being thrown into operative position by proper movement of the When the press is in idle open position, the parts of the switch mechanism are as shown in Fig. 9 with the bridge contacts 49 and 51 to the right and the bridge contacts 50 and 52 to the left and both sets of such bridge contacts out of contact with the fingers 56, 55, 54 and 53. VVhenthe parts are in this position the rod cannot be moved to the right by the control lever 81 but can only be moved to the left, because the roller '66 is in a position to obstruct movement to the right. Therefore, when the operator wishes to close the press he elevates the con trol member 81 moving the lever 72 clockwise and shifting the rod 60 to the left. This bringsthe bridge contacts 49 and 51 into engagement with the fingers 56, 55, 54 and 53 and brings about the operation of the motor and the closing of the press to full pressure position. During the closing movement however, the member 64, Fig. 10, has moved from the position indicated in Figs. 9 and 11 to the position shown in Fig. 10 when the roller 66 will engage the finger 63 and move the switch blocks 47 and 48 from the dotted line position to the left in Fig. 9 to the full line position in that figure when the motor circuit will be brokenand the press will stand closed. It is also obvious that the. roller 69 will be yieldingly pressed against the finger 62 and this may be overcome 'by the operator movin the handle 81 downward and thereby roc 'ng the lever 72 counter-clockwise and shifting the rod 60- to the right to. the dotted line position shown in Fig. 9 i will then be closed for the opening operation. The tension of the spring 7 Dis insufiicient in this position of the roller to create any considerable resist: ance to the movement of the controllerto the release position or to return it to neutral As the headapproaches the bed and the A roller 66 is moving clockwise from the position shown in Fig. 9 to the position shown j in Fig. 10,.the roller 69 is carried clockwise shown in Fig havelieen on so that its spring 70 tends to move it into engage'ment with the finger 62"which would tend to move both the fingers 62 and 6321s *well as the switch mechamsm to the left as .9, or to the one to which they 'nally. thrown for the pressing ficient to a tail portion already important features are so calibrated that the tendency of this; roller 69 at this time, which just precedes final pressure and is after saie closing, is sufhold the fingers 62 and 63 to the left and therefore the press can proceed through to final. pressure. Before this roller 69 becomes effective for such an operation,

however, the strength of the spring 98 is sufficient to return the entire control mechanism and bring the switch into neutral position, or that shown in Fig. 9. Asthe press finally reaches full pressure position, the roller 66, by engagement with the'finger 63, moves the switch mechanism into neutral position, orthat shown in Fig. 9, against the tension of the spring controlling the roller 69. When the press is to be opened, the operator presses down upon the control, shifting the lever 7 2 counter-clockwise and sliding the rod 60 with the fingers 62 and 63 to the right.

against the tension of the spring 70, causing the proper switch arrangement to produce another operation of the motor and an opening of the press. The roller 66 finally engages the finger 62, throws the switch to open the motor circuit, stops the press and ends up in the position shown in FigJ9. 1

It is quite obvious from an inspection of Figs. 9, 10 and ;11 that if no other means other than the roller 66 were provided for governing the operation of the controller switch, the operator, after he had started the closing part cycle, might depress the controlling lever 81 into its-release operating zone for some unaccountable reason and therefore throw the switch control mechanism out of its proper step. To overcome this, the disk 64 on the crank shaft is provided with referred to. This portion has a peripheral circumferentially extending bridging part forming, so to speak, a continuation of theouter part of the roller 66 and trailing behind it so that as this roller 66 leaves the finger 62, for example, this tail portion follows it and forms a barrier capable of preventing any movement of the switch mechanism other than back to neutral. In other words, it prevents the complete shifting of the switch mechanism from an on position for closing through neutral and to an on position in the opening zone.

It will be seen from the foregoing, that the mechanismdescribed rovides means for completely controlling t e press, some of the being the application of the braking mechanism with other movement of the controlling mechanism,the application of the brake and 'the interruption of the motor circuit following in rapid succession with the release of the brake prior to the completion of the motor circuit in every instance thereby doing away with subjecting the motor to the brake load. Another important feature is the provision of means for preventing the automatic maintenanceof the of the mechanism until final pressure is fully applied.

WhatI claim is:

1. In a garment press, a bed, a cooperating movable head, motor means, operative connections from the motor means to the head 7 for closin and opening the press and for appl 'ng nal pressure, an electric controller for t e motor means having a closing posi tion for closing the press and ap lying final ressure, a neutral position and 'mg position for opening the press, means normally tending to move said controller to neutral position to sto the motor means and thus prevent further c osing of the press and the production of final pressure, and means for overcoming said last named means .as the .5 head approaches a safe closed position with respect to the bed, whereby the motor means may continue and produce final ressure.

2. In a arment ress asset fort in claim 1,

; characterized in t at the controller is pro- .ing device and t e' motor means is provided with an operative connection between it and the controller 'for holding the controller in the clo position after the head is safely closed respect to the bed.

3. In a garment press, a bed, a cooperating movable head, motor means, operative connections from the motor means to the head I for closing and opening-the press, a controller for the motor means, a brake for stop ing the spinning of the motor means, an an operative-connection between the controller and the brake and including a brake actuator set for actuation to release the brake prior to the movement of the controller to start said motor means.

. 4. In a garment press as set forth in claim 3, characterized in that the controller has movement in one direction to close the press and in another direction to open the'press and in that the brake is provided with a double acting actuator set to release the brake prior to the actuation of the controller to start the motor means for either closing the press or opening the press. I

5. In agarment'press, a bed, a cooperating movable head, motor means, operative connections from the motor means to the headfor closing and opening the press, a controller for the motor means having a stationary controller element and a movable controller element, said movable controller element having a neutral position and two press operat-ing 'positions, namely, a press o5 closing operating position, and a press openan openvided with an o erator operated manipulatthe parts being so construc ing operating position, operator operated means for moving said movable controller element to either the *press closing position or the press 0 ning position, neutralizing means operate by the motor means for re turning the movable controller element to neutral position, and means for reventing movement of the movable control er element to a second press operating position from a first press operating position to which it has been moved by the operator until after the intended press operation has been substantially completed, a

6. In a garment ress as set forth in claim 5, characterize in that the neutralizso ing means includes an operative connection between the motor means and the controller for moving the movable controller element of the controller to neutral position at the termination of the press closing operation and the press opening operation.

7. In a garment press as set forth in claim 5, characterized in that an additional neutralizing means is provided tending normally to move the movablecontroller element of the controller to neutral position during the press closing operation.

8. In a garment press as set forth in claim 5, characterized in that additional neutralizing means is provided tending normally 5 -to move the movable element of the controller to neutral position during the press closing operation and in that. means is provided for overcoming this tendency of said additional neutralizing means after the head has reached a safe closed position with respect to the bed in the closing of the press.

9. In a garment press asset forth in claim 5, characterized in that additional neutralizing means is provided tendin normally to 7 -move the movable element oft e controller to neutral position during the press closing operation and in that means is provided operatively connected to the motor means and to the movable element of the c dntroller and y having a controllinfelement operated by h the wer means and rendered ca able thereb; of overcoming the tendency 0 said additional neutralizing means after the head has reached a safe closedposition with re- 1115' spect to the bed inthe closing of the press.

10. In a garment press, a bed, a cooperating movable head, motor means, operating,

connections from the motor means to the head for closin and opening the press, a controller for t e motor means having a movablecontroller element, brake means for the motor means, a -movable actuator for said brake means, an operator operated de- .vice for actuating said brake'means and said controller, and connections between said controllerand said operator 0 rated device, and arranged as to cause the controller to release the brake means prior to the actuation of the con troller to start the motormeans and to cause the controller to apply the brake means after said motor means has been stopped.

11. In a garmentpress as set forth in claim 10, characterized in that the controller has two positions, one for closing the press and the other for opening the press and in that double actin .parts are provided to Bring about the re ease of the brake means 0 upon the startin of the motor means and the application 0 the brake means upon the stopping of the motor means.

In testimony whereof hereby afix my signature. 7

' ROBERT C. PAULY.

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