US1711359A - Block or tile making machine or the like - Google Patents

Description

April 30, 1929. MclNTYRE 1,711 359 BLOCK 0R TILE MAKING MACHINE on THE LIKE Filed March 22, 1926 2 Sheets-Sheet 1 v April 30, 1929. A. e. M INTYRE 1,711,359

BLOCK 0R TILE MAKING MACHINE OR THE LIKE Filed March 22, 1926 2 Sheets-Sheet 2 fly Q 73 Patented Apr. 30, 1929. I

UNITED "STATES PATENT OFFICE.

ANDREW G. MCINTYBE, Wa ner, ew Yon ASSIGNO'R' so menu MACHINE 00., inc, or Err 101w, NEW YORK, A CORPORATION on NEW YORK.

BLOCK on TILE MA-KING MACHINE on THE LIKE.

Application filed March-22, 1926. Serial No. 96,408.

This invention relates to block or tile making machines, or the lil'reyand provides improvements therein.

The invention provides amachine for making blocks, tiles orthe like (of concrete for example) in which the parts are driven and timed by positively driven mechanism, whereby liabilit'y tov slippage of parts and consequent damage due to improper timing is minimized or avoided.

The invention further provides a novel and relatively simple mechanism comprising interrupted gears for driving various parts of a combination in timed relation and in a positivemanner. i

The invention further provides a mechanism capable of losing run at speed which permitsof rapid operation and a'rela-tively large output. Furthermore; the invention provides a simplified machine and permits of considerable saving in weight and manufacturing cost.

An'emhodiment of the invention is illustrated in the accompanying ,drawings'in which: i I Figure 1 chine.

Fig. 2 is a left Fig. 1. l 3

ment for tion.

Fi A

is an end-elevation of theymaside elevation as vie'wedfin showsthe cam tripping arrangebringing the tampers' 1ntooperag 1- is a section online 4l4:, Fig. 6, showing both the internal and external gearing of the main'driving member.

Fig. 1 is a section of the main driving member taken along line4-4l, Fig. 6.

Fig. 4 is a developed view of the face of the interrupted gear showing the position of the rack segments thereon. I

Fig. 5 is a plan view of the machine with the tamping supports, tampers I and assoeiated apparatus removed and showing the feed slide in its over-traveled position.

Fig. 6 is a plan view of the main driving members together with the cooperating mechanism.

Fig. 6? is vicw'similar to Fig. 6, showing an alternative.arrangement of certain parts of the driving and timing mechanism.

Fig. 7 is an end view of the machine show- I toothed segments t ing the tiles raised to the position for re mov al from the machine. a

Fig. 8 isa section on the line 8-8, Fig.

6 showing the cam and weight-arrangement designates the mold or box in which the blo'clrsor tiles of concrete or the like are. to

be formed; numera1'12 designates a feed-' ing device for furnishing or feeding concrete or the like to the mold numeral 14: designates the tamping mechanism for densifying or compacting the material in the mold 10;

numeral 16 indicates the block or tile-ejecting mechanism; and numeral 18 designates the driving and timing mechanism, adapted drive' the before-mentioned parts and time them in such sequence that the feeding inea-ns12 is first driven forward from beneath a hopper 20 to a position over the box or mold 10, where the charge carried by said feeding mechanism is discharged into said.

mold or box 10, the table then stopped in such fo'rward position, the tamping m'echa-,

10; the feeding. mechanism then being held in itsretra cted position; and; the ejecting mechanism 16 then being actuated to eject the formed blocks or tiles (preferably resting on platens previously placed in the bottoms of the molds), in which position the platens bearing the formed blocks or tiles are usually lifted manually and carried away or. placed upon transfer mechanism to remove the formed product to a place of storage or subsequent treatment, as may be necessary or desired.

The driving and timing mechanism 18 comprises an interrupted gear mechanism 22 of novel construction. It comprises a wheel 25 (or wheels), the wheel or' wheels' having 26%26227, 27" thereon in difierent planes. The wt-earns is conven iently fixed'on ashaft 28, and is continuously driven in any suitable manner, as by means of a fly-wheel pulley 30, sprockets 32, 33 con nected by a chain 35 and a pinion 37 on a stub shaft 39 with the sprocket wheel 33, the said pinion 37 conveniently driving said interrupted gear mechanism through an internal gear 10 on the wheel 25. The feeding mechanism 12 is driven and timed from the interrupted gear mechanism through the gear 15, as hereinafter more fully explained, and the ejecting mechanism is driven and timed by and from the interrupted gear mechanism through the gear 17, also as hereinafter more fully described. The tempting mechanism 1 1 is timed conveniently from the shaft 28 carrying the interrupted gear, by means comprising a cam fixed on said shaft, which will also be more fully explained hereinafter.

The feeding mechanism 12 conveniently comprises a slide having a receptacle 62 therein, open at the bottom and top, prefer ably of slightly greater area than the mold or box 10 and of su'llicient capacity to c0ntain enough material (concrete), to fill, with a slight excess, the said mold or box 10. The slide 60 is preferably provided with a platform or apron 6 1 flush with the underside of the hopper 20, and adapt-ed to close the underside of the hopper when the receptacle 62 therein moved forward from the mold or box 10.

As heretofore explained, the feeding mechanism driven from the interrupted gear mechanism 22 through the gear 415. This year 15 is conveniently fixed upon a shaft o7 having thereon a bevel gear or the like 68 meshing'with a similar bevel gear 69 attached to a shaft 70 carrying a crank-arm 72 connected by a link 73 with the said slide (54;, and hence on intermittent meshing of the se icnts 26, 20 on the wheel 22, the said slide, through, the CPZHlk-tl'lll 72, is reciprorated toned from positions where the receptacle 62is beneath the hopper 20, and where is over the box or mold 10, with periods of rest in each of these positions.

The throw of the crank 72 is prefe ably such as to carry the receptacle slightly beyond a positioi'i coincident with the mold, in such manner that the rear wall of the rehe contents slightly for ccptaclc pushes t ward in the mold, so as to center or more evenly distribute the excess material at the top of the mold, the crank 72 continuing its movement before stopping, suiliciently to bring the receptacle 62 slightly backward to a position coincident with the mold.

The block or tile ejecting mechanism 16, as hereto explained, is driven from the racks 27, 27 and the wheel 22, through the gear 47. The gear 47 is conveniently mounted on a shaft 80, which carries sprocket wheels 81 at one or both ends thereof. These 90, wl'iich enter the box or mold 10 and make contact with the platens 92, which are placed in the bottom of the said mold prior to filling. The interrupted. gear or racks 27 27 act to reciprocate the cross head 88, to and from positions where the projections bear on the underside of the platens 92. in the bottom of the mold, and where the said project-ions are raised to a position where they support the platens substantially flush with the upper side of the mold or box 10, with periods of rest in each of these positions.

The box or mold 10 is conveniently pro vided with one or more partitions dividing the mold into a plurality of molds for forming a plurality of blocks or tiles at each cycle of operation of the machine. Moreover, the box mold 10 is conveniently provided with a plurality of formers or core pieces 97 for forming hollow spaces within the block or tile, so as tothereby produce the so-called hollow blocks or tiles.

The tamping mechanism conveniently comprises a plurality of tampers 100 having stems 101 suitably guided in the framework of the machine. These stems 101 are conveniently provided with tappets 103 adapted to make Contact with, and be raised and dropped by, an arm or arms 105 on'a rotating shaft 107, which is driven by the fly-wheel pulley 30. As here shown, the said. fly-wheel 30 mounted upon the same shaft 107 as the said arm or arms 105. In practice, however, a clutch would usually be interposed. between the fly-wheel pulley 30 and tl'ie shaft on which it is mounted. As heretofore stated, the arm or arms 105 not to raise and drop the tampers 100. This action is arranged and timed as follows: Dogs 107 are provided for engaging shoulders 108 on the stems of the tampers 100 in the raised position thereof. These dogs 107 normally act to engage the said shoulders 108., being pressed toward said shoulders by springs 109. or the like. When the time for action of the tempers arrives (which is immediately after the receptacle 62 of the feeding means 12 comes to rest over the mold or box 10), the dogs 107 are withdrawn from behind the shoulders 108, by means which conveniently comprise tappets 112 adapted to be brought against tail pieces 113 on the said dogs 107, and thereby liftthe dogs out of iesition to engage the shoulders 108 on the ii i.

stems of the tempers, The tappets 113 are conveniently mounted on a shaft 115, which adapted to is rocked bv an arm 116 connected by a link 117 to an arm 119, against which the-cam makes contact. As heretofore explained, this cam 50 is mounted on the end of the shaft 28011 which is mounted the interrupted gear or gears,'and is suitably shaped and positioned to'rock the arm 119, and thereby cause the tappets tomove the dogs 107 out of engagement with the shoulders'on the tamper stems 101, when the time arrives for the action of these tampers.

Means are provided for insuring the initial engagement or meshing of the racks 26, 26 27, 27 each time these racks come into mesh with the gears 45 and 47. This means conveniently comprises a disk 131 having flats 133, 134 thereon, against which is bear a weight'ed'arm 135. I As the last tooth of each of the racks 26226 27, 27" moves out of mesh with the gears 45, 47, the teeth on said gears may not be left in position tO-PI'OPGilYiDQSll with the leading tooth on the succeeding rack or segment of the interriipte'd gear, due to inertia and other causes. The flats 133,134 are accordingly soarranged that when the weighted arm 134 bears flush thereagainst the teeth on the gears 45,47 are in position to properly mesh with the leading tooth of each of the racks or segments 283.26", 27", 27 If the shafts 67 and 80 are moved beyond a position where the weighted arm 135 bears flatly on either of the flats 133 or 134, the

weight of the arm bearing upon one edge of the flat. will cause the disk to be turned until the said weighted armbears equally against the entire face of the flat, thereby turning the shaft and gears 45 or 47 thereon to a position where the teeth on the said gears 45 or 47 are in position to properly mesh with the leadingteeth on the racks '26, 26 27 27". As an additional means ofsecuring accuracy, the shafts-67 and 80 may be provided with toothed wheels'140, over which ride pawls 141', slipping over the teeth when the shaft turns in its normal direction, and adapted to engage the teeth when the shaft is turned backward. These pawls 141 may therefore act in conjunction with the weights and the weighted arms 135 and disk 131 with the flats thereon, to limit in a precise manner the extent to which the shafts (37 and 80 are movedbackward by the action of said weighted arm and flats. n The number of teeth "n the two sets of segments (there might be more) 26?, 26 27*,

'27 co-acting' with each of the gears 45, 47, is so chosen as to effect a determined angular movement of each gear in this instance, one complete revolution) fore'ach revolution of the wheel on which the racks or segments are mounted, and the proper meshing of each rack witheach of the gears 45, 47 is insured by the means 18'. VVher'e the dlameter of the gear is small with relation to the diameter of the wheel having thereon the interrupted gears or racks-,one lesstooth is provided in the rack than the'number'of teeth of the gear to be driven owing to the fact that the outer circle of the teeth of the interrupted gear comprehends an arc on. the outer circle of the; gear teeth which is the length of 'two teeth of said smaller gear. Theracks' 26 26" (likewise for the racks 27 27") act serially on their gear 47, and hence the present construction provides a compact arrangement for effecting a cycle of operation by an interrupted gear, and the entire driving and timing arrangement provides for a reliable action of the interrupted gears, and a positive drive of the mechanism driven from thegears 45, 47, which mesh head 88, is provided with a lesser number' i of teeth than the rack 27, the teeth in the two ra-eks 27 27 being suflicient to turn the gear 47 through a complete revolution to"thereby-effect a complete cycle of the parts driven thereby; V

Fig. 6 shows an alternativearrangement for intermittent driving of themecha'nisms, only one of the mechanisms, the block ejecting mechanism, being here shown. Inthis arrangement the driving and timing mechanism 18 is providedwith an additional wheel 22and the racks or segments 27 and 27" are placed on wheels indifferent planes. An additional gear 47 is placed on the shaft 80 with the gear 47, and a gear for reverse driving, located between the gear 47 and the rack'segment 27 Moreover, inr stead of sprockets 81,182 and chains 83, the shaft 80 may be provided with disks having crank pins 151 thereon connecting, through connecting rods 152, with crank pins 153 on diskson stub shafts 155 having thereon the crank pins 85 connecting with the crosshead 88, through the connecting rods 87.

Means 130 heretofore described are preferably provided for insuring initial engagement of the rack segments 26*, etc. with the gears '47, 47', etc.

When the rack teeth 27 mesh with the gear 47, the crank 85 will be turned through nearly and preferably stopping on dead center to raise the cross-head 88 and ire eject the'platen carrying the formed block or tile. Thereafter (after a short period of rest) the segment or rack-27 will engage the gear 150, driving the gear 47 reversely, and will turn the crank reversely to bring the cross-head 85 to its lower position.

What is claimed is 1. A block or tile making machine, comprising a box or mold, feeding means comprising a gear, block-ejecting means comprising a gear, and driving and timing means comprising interrupted gearing for intermittently engaging said gears of said feeding and ejecting mechanism.

2. A block or tile making machine comprising a box or mold, feeding mechanism comprising a gear, block-ejecting means, comprising a gear, and tamping mechanism comprising a part for holding it out of action, and driving and timing means comprising int-errupted gearing for intermittently engaging said gears of said feeding and ejecting mechanism and a part for releasing said part of said tamping means, which acts to hold it out of action.

3. In a block or tile making machine, a box or mold, pallet in said mold, a feed slide means for ejecting said pallet with the formed blocks or tile thereon, tampers, means for actuating the same, a main driving and timing member internally continuously geared to receive motion andexternally discontinuously geared in sections to transmit motion, one section of said discontinuous gearing arranged. to move said slide to and from said mold, the other section of said discontinuous gearing arranged to drive said ejecting mechanism and raise said pallets from the mold.

4. In a block or tile making machine, a box or mold, a feed slide, means for ejecting formed blocks or tile from said mold, and a main driving and timing member comprising means for turning it, and discontinuously geared in sections to transmit motion, one section. .of said discontinuous gearing arranged to move said slide to and from said mold, and another section arranged to intermittently operate said ejecting mechanism.

5. In a block or tile making machine, a box or mold, a feed slide, means for ejecting formed blocks or tile from said mold, tampers, and a main driving and timing member comprising means for turning it, and discontinuously geared in sections to transmit motion, one section of said discontinuous gearing arranged to move said slide to and from said mold, and another section arranged to intermittently operate said ejecting mechanism, said main driving and timing member further comprising means for timing the action of said tampers.

6. In a block or tile making machine, a box or mold, a feedslide, means for ejecting formed blocks or tilefrom said mold, and a main driving and timing member comprising a cont humus set of gear teeth through which it is rotated, and sections of discontinuous gears, said sections being angularly spaced and arranged in different planes axially, gears arranged in different planes corresponding to said angularly spaced gear sections adapted to be successively engaged by said gear sections, said gears being connected to said feed slide and to said ejecting mechanism, and imparting thereto intermittent reciprocatory movement.

7. In a block or tile making machine, a box or mold, a feed slide, means for ejecting formed blocks or tile from said mold, and a main driving and timing member comprising a. continuous set of gear teeth through which it is rotated, and sections of discontinuous gears, said sections being angularly spaced and arranged in different planes axially, gears arranged in different plane corresponding to said angularly spaced gear sections adapted to be successively engaged by said gear sections, said gears being connected to said feed slide and to said ejecting mechanism, and imparting thereto intermittent reciprocatory movement, and means for positioning said gears to mesh with the lead-tooth of said gear sections.

8. In a block or tile making machine, a box or mold, a feed slide, means for ejecting formed blocks or tile from said mold, and

a main driving and timing member comprising a continuous set of gear teeth through which, it is rotated, and sections of discontinuous gears, said sections being angularly spaced and arranged in differentplanes axially, gears arranged in different planes corresponding to said angularly spaced gear sections adapted to be successively engaged by said gear sections, said gears being connected to said feed slide and to said ejecting mechanism, and imparting thereto intermittent reciprocatory movement, the discontinuous gears in each of said planes comprising a plurality of sections.

9. Actuating mechanism for molding machinery, said mechanism embodying a shaft a plurality of master gears mounted. upon said shaft, means for rotating the shaft, a plurality of. separate mechanical movements independent of the shaft, means affording a direct gear connection between each of the said master gears and one of the said movements, and means providing a positive locking of the said movements in timed relation with respect to each other, all in one complete cycle of operation of the said sh aft.

10. Actuating mechanism for molding machinery, uaid mechanism embodying a shaft, a plurality of master gears mounted upon said shaft, means for rotating the shaft, a plurality of separate mechanical movements independent of the said shaft, means affording a direct gear connection between each of the said master gears and one of the said movements, means providinga positive locking of the said movements in timed relation With respect to each other, all in one complete cycle of operation of the'said shaft and master gears, a tamper, means also operating in timed relation With said master gears for actuating the tamper, locking means for the tamper, and means affording a direct connection between the said shaft and the last recited locking means for rendering the latter active and inactive at pre- 1 determined times in the cycle of operation of the said shaft.

In Witness whereof, I have hereunto signed my name.

ANDREW G. MGINTYRE.

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