DE1235850B - Device for applying a metal jacket to refractory, cuboid objects - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

B21d

German class: 7c-23

Number: 1235850

File number: P 297801 b / 7 c

Filing date: July 9, 1962

Opened on: March 9, 1967

The invention relates to a device for applying a sheet metal jacket to refractory, parallelepiped Objects, especially bricks, in which an object and a piece of sheet metal brought together, then the sheet metal piece with the help of vertically movable bending rollers around the on the sheet metal piece adjacent longitudinal edges of the counter-stand bent, whereupon with the help of horizontally movable bending rollers of the sheet metal piece around the remaining longitudinal edges of the object is bent.

It is already a device for applying a piece of metal to a box-like object known, in which a single pair of jaws is used for pressing the sheet metal piece, wherein during the pressing process running in the horizontal direction, the box-like object passes through another pair of honeycombs is supported.

There is also already known a device for wrapping boards, in which a to be sheathed Sheet metal passed through a pair of rollers lying on an appropriately cut sheet metal blank whose roller gap is dimensioned so that the sheet metal parts protruding laterally over the board be bent upwards. A second pair of rollers is arranged behind the first pair of rollers, which presses the upwardly bent parts of the sheet down towards the board surface. By means of a third pair of rollers arranged behind the second pair of jaws, the Sheet metal parts pressed against the surface of the board. This known device is not for sheathing suitable for refractory objects as they are quite brittle and when pressed together easy to break tons.

Furthermore, a device for applying a sheet metal fitting to boards is already known, in which shell-like sheet metal parts are first produced, into which the boards are then inserted. The edges of the sheet metal parts are then bent around the boards. The sheet metal parts and the boards will be conveyed to the most diverse treatment stations with the HiKe of a conveyor. In this known device, prefabricated sheet metal parts are found Use.

The invention is now based on the object of providing a device of the type mentioned at the outset in such a way to design that a safe and perfect sheathing of refractory, cuboid Objects can be carried out within a very short time.

According to the invention, this object is now achieved by means of a device for applying a metal jacket on refractory, cuboid objects

Applicant:

H. K. Porter Company, Inc.,

Pittsburgh, Pa. (V. St. A.)

Representative;

Dipl.'Ing. M. Licht and Dr. R. Schmidt,
Patent Attorneys, Munich 2, Theresienstr. 33

Named as inventor;

Ralph Rose, Pittsburgh, Pa .;

John F. Freeman, Sacramento, Calif .;

Richard W. Entler, Columbus, Ohio (V. St. A.) - -

solved that an intermittently drivable conveyor is provided, the input side each with a Sheet metal pieces delivering and its objects delivering device is in connection and along a vertically movable pair of bending jaws that can be operated at a distance from one another and at the same time, a horizontally movable pair of bending rollers and a lifting mechanism are arranged, which is used to feed and Removal of the already encased objects to or from one arranged above the conveyor Stapling mechanism is provided in which the two opposite edges of the sheet metal jacket through Brackets are stapled together.

A lowering mechanism is expediently also located in the vicinity of the output side of the conveyor provided, through which the staples inserted by the stapling mechanism can be sunk.

The device according to the invention can be adjusted to process different formats, the metal jacket tightly enclosing the objects, even if the dimensions of the objects vary considerably. It is therefore not necessary to pre-sort the objects to be coated. The device according to the invention is characterized by a simple structure and therefore less susceptibility to failure.
The invention is explained in more detail with reference to drawings in which shows

F i g. 1 is a partially schematic side view of the brick-cladding device;

709 51S / 180

3 4

F i g. 2 shows a partially schematic front view of lying points with protruding stops 38

the brick sheathing device. In frame 31 are appropriate

3 shows a schematic representation to explain non-driven chain sprockets 39 and 40.

tion of the arrangement of bricks and cladding material. Another, non-driven chain tooth

the rad41 by the part 5 shown in FIGS. 4, 5 and 6 is indicated in a suitable manner (see FIGS. 4 and 5)

the device can be achieved, the transverse elements 34 supported. On the other end

F i g. 4 a section through the center line of the target of the conveyor 37 is the drive wheel 42,

gel input part of the device, which sits on a shaft 43 which is rotatable in bearing

Fig. 5 is a section along the line 5-5 in blocks 44 and 45 is mounted. Sitting on the shaft 43

Fig. 4, ίο another sprocket wheel 46, which has a chain

6 is a section along line 6-6 in FIG. 47 connected to a sprocket 48. Of the

Fi g. 4, conveyor 37 is driven by a motor 49,

7 shows a side view, partly in section, of the with the aid of suitable means, for example through

Part of the device that connects the sheet metal to the two a clutch 50, to a switching mechanism 51

Lower edges of the brick bends, 15 is connected, which drives the sprocket 48.

F i g. 8 is a perspective view for explaining the motor 49 and the switching mechanism 51

tion of the bending process, which is arranged by the in the on a plate 52, which is attached to the frame 31

Fi g. 7 and 9 shown part of the device is through- attached. The switching mechanism 51 is electrical

is performed, with a central circuit (not shown)

Fig. 9 is a section along line 9-9 in Fig. 20 made up of limit switches.

Fig. 7, ". The limit switches are connected in series, see above

Fi g. 10, partially in section, a side view of the fact that in each operation of the machine the switching

Part of the device that closes the sheet metal around the two circles when all parts of the

The upper edges of the brick are bent, the device carrying out the cladding steps

11 shows a perspective illustration of the end of the working cycle. So the drive works

Refinement of the bending process, which is carried out by the paragraph-wise.

Fig. 10 and 12 shown part of the device as a separate unit is a sheet metal feed

is carried out, device 53 is provided which has its own engine

Fig. 12 has a section along line 12-12 in and coupling existing drive system,

Fig. 10, 30 which is electrically operated by the chain conveyor switching mechanism

F i g. 13 a side view of the mechanism 51 is actuated, partly in section.

Part of the device that holds the metal jacket together. The brick jacketing device includes five

menheftet, stations that work essentially simultaneously.

Fi g. 14 a section along the line 14-14 in The station 54 aligns the bricks 55 on the

Fi g. 13, 35 sheathing provided sheet metal piece 56 from. The first

15 shows a perspective illustration of the bending station 57 bends the sheet metal around the side edges

purification of the stapling caused by the in of the brick upwards. The brick 55 and the sheet metal

The part of the device 56 shown in FIGS. 13 and 14 are then moved to the second bending station 58,

tion is reached where the upstanding tabs of the sheet metal piece

F i g. Figure 16 is a section through which a staple 40 is bent over the surface of the brick. At

mer containing part of the brick after the assembly of the stapling station 59 is a staple in the

staple the sheathing, insert both tabs and thereby remove the metal

F i g. 17 a section through which a clip jacket secured around the brick. Eventually be

containing part of the brick after the assembly at a sinking station 60, the clip and

squeezing the clamp, 45 depressing the surrounding metal.

Fi g. 18 shows a front view, partly in section, as shown in FIGS. 4, 5 and 6 can be seen, has

the part of the device that holds the clamp together - the non-driven sprocket wheel 41 teeth 61,

menpresses, which engage in the roller chain 37. The chain

F i g. 19, partially in section, a plan view of the gear 41 sits rigidly on the shaft 62, which is rotatable

for compressing the clamps serving 50 is mounted in bearing blocks 63. A hand wheel 64 is seated

Part of the device, on a threaded spindle 65, which is in a block 66

FIG. 20 shows a perspective illustration of one that is guided and connected to the bearing block 63.

Brick, which is covered with a different design. By turning the handwheel 64, the

Fühningsform is provided, and the conveyor chain 37 can be tightened or loosened. the

Fig. 21 is a perspective view of a 55 bearing blocks 63 are made by suitable means, for example

Brick, which is covered with a jacket in turn by bolts protruding from a plate 68

rer execution form is provided. 67, slidably mounted so that the non-driven

As shown in FIGS. 1 and 2, it has a sprocket wheel 41 by turning the handwheel 64

the brick cladding device can be moved a frame in the longitudinal direction.

31, which can consist of U-iron and of longitudinal 60 The chain tooth driven by the chain 37

elements 32 is constructed, the abraded by feet 33 41 drives two V-belts 69 and 70, which as

is supported and connected to one another by transverse elements 34. Conveyors for the intended for sheathing

are bound. Sheet metal pieces 56 are used to stiffen and support. One sits on the shaft 62

Various components of the device are further pulley 71, which by a belt 72 with a

Longitudinal elements 35 attached to the feet 33, which is connected to 65 washer 73 which is mounted on a shaft 74

Foot plates 36 can be provided. The frame 31 is seated, which is rotatably supported in bearing blocks 75 and 76

serves to support an endless chain conveyor and on which two V-belt pulleys 77 and

37. The conveyor 37 is seated at predetermined spacing 78 for driving the V-belts 69 and 70.

5 6

The two V-belts 69 and 70 are reduced over the V-handene metal narrowing, and it only has to

belt drive pulleys 77 and 78 and not the metal webs 89 are bent so that

driven pulleys 79 tensioned. the tendency of the metal to come back in after bending

The bricks 55 are returned to their original position by a feeding mechanism, ie the pulp is fed, which consists of rollers 80, which are rotatable 5 snap back, are considerably reduced,
are arranged on support elements 81 and 82. This is particularly important in the case of a fast running A guide 83 ensures that the bricks 55 from the manufacturing process are important, since this keeps the sheet metal straightened when it moves over the rollers 80 and can be deformed piece by piece when the brick 55 moves and on a plate-shaped Stop 84 is in place. A piece of sheet metal provided over the ion 90 would not come to rest with perforation after the conveyor 37 would properly arrange the bricks 55. The stop 84 is adjustable to bend away from the brick and snap back outwards, so that it can be adjusted to a wide variety of brick and could not be set across the final bending position. bent out, since the brick is already attached

The conveyor chain 37 goes through a switching cycle that is in place. The perforation holes are and the lugs 38 protruding from the chain slid so wide that the distance between the edges or ben the brick 55 from the rollers 80 to angle- the dimensions of the brick 55, which is the location of the iron support 85, which fixes the brick 55 above the bending edge on the metal webs 89, itself Sheathing provided sheet metal piece 56 lead can change considerably, and still the and support. The supports 85 are displaceable with bending edges still along the perforations 90 strengthens, for example with the help of the webs 89 come to rest in the transverse element 20. The perforation 37 provided slots 86 and bolt holes help that the metal jacket round 87. Through the slots 86, the angle iron around the brick 55 fits tightly because of the width The existing carrier 85 is balanced by hand in accordance with the perforation holes, fluctuations in the bricks, different sizes and shapes, the dimensions to be encompassed, and the springing back be set on the moving bricks. «5 is reduced. After, as shown in FIG. 3 can be seen

The sheet metal feed device 53 (FIG. 1) guides the brick 55 on the sheet metal piece 56

automatically a sheet metal piece86 which is from the V-belt, as can be seen from Fig.8, the sheet metal

69 and 70 existing sponsors. The wedge along the two inner perforations 90

belts 69 and 70 lead the sheet metal pieces 56 from the bent, whereupon, as shown in Fig. 11,

Sheet metal feed device 53 under the bricks 55. 30 the metal along the two outer perforations

Due to the size of the pulleys 71 and 90 is bent so that the two end lobes 93

73 - and fold the V-belt drive pulleys 77 and 78 on top of the tile 55,

the V-belts 69 and 70 are a little faster than there are recesses on the top of the tile 55

the conveyor chain 73 is driven so that the sheet metal 94 is provided so that the metal jacket on the brick 55

piece 86 against the preceding one, can be fastened by the conveyor 35 by pulling through the tabs 93

chain protruding approach 38 is pressed. From brackets95 in the manner shown in FIG

Hand adjustable guide rails 88 bring that can be used. The recesses 94

Sheet metal pieces 56 for the V-belts 69 and 70 in the possible not only that the brackets 95 through the

correct location. Penetrate the rag 93 and hold it,

Fig. 3 shows the position of the brick 55 on the 40 but also form a cavity into which the

Sheathing provided sheet metal piece 56, as they can protrude ends of the brackets 95, such as

in the sheet metal shown in FIGS. 4, 5 and 6 and this from FIGS. 16 and 17 can be seen. In the

Brick alignment station 54 is set. The sheet metal - the recesses 94 protruding ends of the

piece 56 is a right-angled piece of metal, which brackets 95 prevent the brick 55 from the

has webs 89 separated by perforations 90. ₄₅ open ends of the metal jacket slips out. the

On the sheet metal piece 56 are four perforations 90 and the recess 94 is formed in the brick

provided at such a distance from each other, side surfaces of the recess 94 are inwardly

that it collapses with the edges of the brick 55 against the floor surface, so that the ends of the

len when the sheet metal piece 56 is bent around the brick 55 brackets 95 inwardly towards one another

is wound (Figs. 8 and 11). The brick 55 can become 50 after it, as can be seen from FIG. 17,

be made of any suitable material through which end tabs 93 have penetrated,

for example from dead-burned magnesite, chrome- The brackets 95 are secured in this way,

ore, olivine or other basic oxides and mid-way because the ends of the clamps 95 are bent over,

gobble away. The between the perforations 90, as shown in FIG

lying surface 91 is made to cover the underside 55 depressions 96 by placing on each bracket

of the brick 14 and the surfaces 92 are to be covered 95 and the adjacent one, above the recess 94

Kung of the side surfaces of the brick 55 is provided. lying metal surface exerted pressure from the outside

The ends of the rectangular piece of sheet metal 56 will be. The depression 96 can be attached to the brackets 95

formed by tabs 93, which over the top of the stitching machine or by a suitable

Brick 55 are folded and along the central 60 neter-shaped, hydraulically operated ham-

The line of the brick 55 almost collapses, which are introduced, mer or stamps. The clip

As can be seen from Fig. 11, parallel to the 95 is pressed in so that its top is below

Longitudinal edges of the brick 55 runs. the surface of the tabs 93 lies or at least

As can be seen from Fig. 8, the brick 55 is flush with the surface. The Depressions 96

Brought to the surface 91 of the sheet metal piece 56 and also contribute to the fact that the metal jacket on the

the sheet metal piece is ^{held immovably along the two inside 5} bricks 55 because they are in the

Lay perforations 90 bent. Project through the Perfo recesses 94. In addition, it is

rations90 is possible due to the depressions 96 along the bending edges

7 8

encased brick in the form of equal height and and forms a reference surface 133, which is the correct

to stack evenly on top of each other, when aligning the brick 55 in the station

where the individual bricks lie close to each other, both guides 125 and 126 are with them

since the staples 95 do not have ends 134 and 135 diverging over the surface on the outside

of the metal jacket. 5 so that the brick 55 is inserted into the station

As can be seen from FIGS. 7, 8 and 9, can be.

the two lower ones at the first bending station 57. The cladding sheet 56 is under the brick

Bending edges made in the jacket sheet 56. The 55 through two manually adjustable guides 88

Bending rollers 97 are rotatably attached in support arms 98 and by bolts 137 on the guides

arranges, the stop plate 136, mounted pivotably by pin 99, is in the correct position

are. The pegs 99 are held on support members 100. The brick 55 and the Ummantehings-

that slide slidably in slots 101 of sheet metal 56 on adjustable tile support rails

blocks 102 are secured. The support members 100 can 107 through the machine. At the top of the goat

hardened plates 138 are attached by hand according to the size and the gel carrier rails 107.

The shape of the bricks to be encased is adjusted to that of the bricks that slide along them

the. The metal blocks 102 are to be minimized on a movable caused wear.

Stamp plate 103 attached. On spigot 105 that put from.

vertical lugs 106 of the support members 100 To prevent sagging through the machine, there are compression springs 104, which press against the chain conveyor 37 passing through, supporting tub 98 and thereby the bending rollers 20 a chain box 138 'is provided, which is at the cross-97 against adjustable brick carrier rails 107 press. elements 34 of the frame is attached.
A lower fixed stamp plate 108 is attached to the transverse elements 34, while the upper or second bending station 58 is described, which guides the stamp plate 103 with guides 109 to the upper bending edges of the casing in the in which forms in the manner shown by the fixed punch- "5 FIG. 11. The already partially plate 108 protruding columns 110 slide. A lower die plate 103 is guided along the rails 107 on the encased brick 55 by means of the conveyor 37 and is secured in the correct position by means of a bolt 112 58 through clamping jaws 139 in the external cylinder 111 brought the piston rod. The clamping jaws 139 are provided with bolts 140 114 of the hydraulic cylinder and a U-shaped 30, which is slidably guided in blocks 141 and passes through the component 115, which is secured by suitable stops, for example nuts, for example with the help of screw bolts 142 , are provided. Between the clamping jaws 139 zen 116, is attached to the stamp plate 103. The springs 143 seated on the blocks 141 press hydraulic cylinders 111 is supported by a cylinder, the clamping jaws 139 during operation of the station 58 guide 117, which is secured by screws 118 at 35 against the casing,
the fixed stamp plate 108 is attached. At station 58 there are two bending roll arrangements

When the station 57 is in operation, the hydraulic system 144 is provided. Any bending roll arrangement

Lische cylinder 111 the movable die plate 103 144 is provided with a bending roller 145, the rotating

and therefore the rollers 97 are arranged upwards against the sheet metal bar in two bearing housings 146, from

piece 56, so that, as can be seen from Fig. 8, the 40 which each is provided with a bolt 147, the

two lower bending edges of the metal jacket slidably guided in a plate 148 and with a

stand. Stop is provided by a washer

The end 121 of the piston rod 120 of an upper 149 and a nut 150 is formed. Between Hydraulic cylinder 119 is threaded to the bearing housing 146 and the plate 148 are provided, onto which a ball 122 is screwed, «compression springs 151 are provided, which the bending shaft seated in the base 123 of a clamping cylinder 124. Press zen 145 down. The plate 148 is slide-in Actuation of the hydraulic cylinder 119 is gonally adjustable and can in this way on verder Clamping cylinder 124 can be set against the top of the various brick shapes. In addition Brick 55 pressed, causing the brick to serve during the slots 152 in which screw bolts 153 Bending process is recorded. That sit through the Ku-50, the on vertical lugs 154 of lubricant 122 and the base 123 formed ball joint plates 155 are attached. The slide plates 155 are enables lugs 156 to be provided regardless of the inclination of the brick (only shown in FIG. 12), proper contact of the cylinder 124 with each of which by a pin 159 with the forked Brick top. shaped end 157 of a hydraulic cylinder

The brick 55 is connected during the chain shift 55 158. The sliding plates 155 can cycle pushed back and forth on sanding plates 160 in the correct manner by guides 125 and 126 Position held, which are on vertical components 127 and are thereby by roller guides are suspended, which are guided on horizontal structural elements. The grinding plates 160 and the roller ducks 128 are attached, which for adaptation to seduction 161 are on vertical support members Different tile widths in fastened in the cross elements 34 60 162, which can be adapted to different provided slots (not shown) are laterally displaceable brick heights by hand. This can be slid are. The guide 125 is with protruding NEN contactors 163, in which screw bolts 164 sit bolts 129 provided, on each of which a spring zen which are screwed into the transverse elements 34. 130 sits on the inner surface of the vertical hydraulic cylinders 158 actuate the sliding component 127 "and one on the bolt 129 65 plates 155 so that the bending roller assemblies 144 to shake in the horizontal direction on the brick 55 by suitable means, for example by Sfchrau- 132, held washer 131 is applied. be moved away and the bending rollers 145, the clamping die other guide 126 is fixed jaws 139 and the tabs 93 of the casing

9 10

reach the positions shown in dashed lines in FIG. 12 for receiving Ziegeta of various shapes and genes α, b and c . The size can be adjusted laterally under spring pressure. In Fig. 14, the sending jaws 139 press the casing pressure bracket, the stops and the corresponding 56 against the brick 55, so that a good fit is ensured during the second parts for receiving larger bending operations than in the figure. The 5 bricks shown moved outwards. The pressure springs 151 of the underside 197 of the stop 196 resting against the housings 146 and the upper press the bending rollers 155 against the surrounding surface 198 of guides 199 so that the two upper bending edges are unbuckled 195 are provided with pins 200 which suitable. Nete stops, for example nuts 201, have,

At the threaded end 163 'io which abut a plate 202 when the pressure of the piston rod 164' of the upper hydraulic cylinder 195 is pushed by springs 203 towards the brick linder 165 there is a ball 166 which is pressed into one . ;: ^;
Base 167 of a cylindrical clamping jaw 168 Both in the tack seats shown in FIGS. 13 and 14. The upper hydraulic cylinder 165 becomes station59. The brick 55 is in the beginning of the work cycle of the station and holds 15 raised position and is ready for stapling Chain conveyors 37 pushing the rails 170 can be moved towards the center of the machine. Reach brick 55 in the correct position below the Heftdie bending rolls 145 and the jaws 139, the machine-169. Subsequently, the hydrauin Fig. 12 are dashed lines positions α ao metallic cylinders 171 and 172 is operated so that b with and then the cylindrical clamping jaw 168 With the help of the already described LaufroUenanordmmup withdrawn, so that now the tabs 93 gen 175 and the U-iron 187 of the brick 55 is moved up in the direction of the arrow d in the dashed line until the metal casing is drawn position e , through the advance of the bending 56, the inclined surfaces 204 of the rollers 145 can be pressed into the position shown in dashed lines. The finished work tends to separate itself somewhat from the brick, since the working process is shown in FIG. "The production of the bending edges is about the metal

In the shown in Figs. 13, 14, 15 and 16 the brick is bent, but not to compensate

Stapling station 59, the staples 95 automatically spring back over the final position table and can be bent into the tabs 93 of the Ummante- 30. Di © pressure bracket 195

lungsbleches56 is used, in which, as shown in Fig. 15, the rising brick 55 separates

it can be seen that the brick 55 is wrapped. As otherwise pressed, the one on the inclined surfaces 204

Fig. 16 shows, the staple 95 is applied by the so "that the springs 203 are compressed and

The side walls of the recess 94 are compressed, the pressure bracket 195 thereby the metal casing

whereby a secure fastening of the Metallumman- 35 presses flush around the brick 55. The increase in the

telung is achieved on the brick. Brick is stopped when the tabs 93 of the me-

Commercially available stapling machines 169 are so tallhülle 56 on the underside 205 of the stops arranged that the metal-clad brick 55 abut 196 through 196. The 196 attacks are not just practicing Hydraulic cylinders 171 and 172 from the chain conveyor to the tabs 93 of the Metaliummantederer 37 up to the stitching machines 169 on 40 lung 56, so that the metal is tight against the brick. the rails 170 can be moved. Each hy- but also ensure that the top of the The hydraulic cylinder is correctly positioned in relation to the inserter via a pin 176 with a brick 55 encased in metal Roller assembly 175 in connection. The gene of the staples 95 is aligned. If the Pin 176 extends through a brick on the piston rod that is higher at one end than at the other, i. H. 173 provided connection piece 174 and is 45 if the tile is wedge-shaped or the upper part Screw bolt 178 is beveled on a plate 177 of the see, the higher end touches the Caster assembly 175 attached. Each caster stops 196 first, and the other end will Arrangement 175 consists of a plate 177, which continues to move upwards until the top of the two roller support elements 179 are attached, stops 176 rests, since the hydraulic cylinders through the pins 181 pass through, which through 50 of the 171 and 172 operate independently of each other Nuts 182 attached to the support elements and and the U-iron 187 rotatable at one end and at the on which rollers 180 are rotatably arranged. other end are slidably arranged. Lies now The rollers 181 are free in vertical rollers- the top of the metal-sheathed tile right rails 183 movable. On a plate 177 is in relation to the staplers 169, then a a pillow block 185 is attached, in which a BoI 55 staple 95 rotatably engages the tabs 93 of the metal 184 is stored. Two blocks 186 are used to set down the metal cladding 56 on the brick meeting the ends of two U-irons 187 and 55 are held in place. After the staplers with the aid of bolts 188 with ends 169 inserted the staples 95 like this of the bolt 184 connected. The other end, shown in Figures 15 and 16, becomes the um-U-iron 187 are clad with bolts 190, 60 brick 55 by pulling back the hydraudie pass through blocks 191 with the ends of cylinders 171 and 172 toward conveyor 37 together Bolt 189 connected. The bolt 189 can be brought back. The brick 55 with its free together on the surface 192 of a Mefall envelope stapled on the top, one can now move on to the next station the other plate 177 arranged support 193 are moved.

slide. The U-irons 187 are used to support the 65 In FIGS. 17, 18 and 19 is the countersinking rails 170 and the brick guides 194th station 60 shown, in which the staples

On each side of the stapling machines 169 are 95 and the part overlying the recesses 94

Arranged pressure bar 195 and stops 196, which are pressed in the tabs 93, with recesses

1 235 85Q 11 12

gen 96 arise and the overhead parts of the abutting end tabs 230 in the lower brackets 95 at least as far downward as breaking 233 two corners. The interruption in that they are flush with the outer surface of the metal shell 233 results in a longer leakage path for any one, as shown in FIG. 17 can be seen. Gas escaping from any furnace

The recess 96 is searched for with your tool holder. As can be seen from FIG. 21, an arrangement 206 is produced which has a longer leakage from an interruption 234 formed by a tool 207 also held by the edges of the tabs 231 and 232 tool holder 208 _{and in which the f} tool holder 208 on one away for the furnace gases. The shape of the end tabs 231 is attached to the tool holder arm 209, which can also be pivoted about a and 232 especially for larger shafts 210 and is suitable in the longitudinal direction on refractory bricks, since the arrangement of these is understandable. While adapting to different staples 95 there are considerable variations in the shapes and sizes of bricks, the shaft 210 can accommodate the dimensions of the brick 55 without the need for staples of different sizes by turning a screw spindle. The throw vertically adjusted by 211 , which is connected to the shaft 210 of the edges of the tabs 231 and 232 , with a handwheel 212 yer- i _S refraction 234 is seen in one parallel to the longitudinal axis of the and in one with a thread Versehe brick 55 running and a perpendicular to the NEN spindle bracket 213 sits. The shaft 210 is also part running along the longitudinal axis of the tile 55 under each end by suitable means, for example divides. In the event of fluctuations in the width or thickness of the bolts 214 and 215 on the slide block 55 , the width of the parallel to the

216 attached, the portion of the extending on vertical frame elements _3a longitudinal axis of the brick 55

217 are slidable "and change considerably by a guide interruption 234 without the pin " 218 being guided. The screw spindles 211 , the portion of the interruption 234 running perpendicular to the longitudinal axis of the tile 55 through slots provided in the shaft 210 changes. The 219 through. The bolt 215 through which the staples 95 bridge the perpendicular to the shaft 210 connectedness with a .the Gleitschlitten- 216 as the longitudinal axis of the brick is 55 extending proportion of the, also passes through a in the shaft 210 interrupt 234, so that the size the slot provided for the brackets. 220 through. By 95 not with the size of the longitudinal axis of the slots 219 and 220 in parallel, it is possible that the shaft of the brick 55th running portion of the lower 210 needs to be changed for processing bricks with an inclined upper break 234 , but the surface can be inclined. 30 remains the same for many dimensional changes.

The bricks with a stapled metal jacket 56 can also be formed by the conveyor chain 37 so that the tabs 93 are brought on a narrow to the lowering station 60 , where they lie opposite one another on the side of the brick 55 and are pushed along rails 107 and through Leadership are connected.

gen 221 under the countersink assemblies 206 35 Refractory bricks will be centered in a large number of. Immediately above each tool shape and size made.Some are holders 208 each is a hydraulic cylinder 222 arching, wedge-shaped, grooved, etc. The arranged, the one threaded length of the brick can be between 15 to 60 cm, the piston rod 223 has, on which a ball 224 width between 7.5 to 25 cm and the thickness is screwed between, which in the base 225 of a hammer 40 are 5 to 13 cm. In the drawings a 226 is seated. When a hydraulic cylinder is actuated, a normal brick is shown.

the corresponding hammer 226 hits the other. For example, the brick shown in FIG. 3 is

on a tool holder 208 so that the work square, approximately 25 cm long, 11.5 cm wide and tool 207 is pressed against a staple 95. 7.5 cm thick. The jacket blank 56 is made to Fig. 18, the Werkzeughalteranord- is ₄₅ s _aU steel sheet having a thickness of 0.95 mm, and voltage 206 in the depressed position. The anterior perforations 90 have a width of approximately 3 to 11 mm, the initial position of the tool holder arrangement 206 , so that changes in the position of the in FIG. 18 are drawn in dashed lines and are possible with the bending edges. The distance between reference symbol g denotes. The tool holder the holes of the perforations 90 or the length arrangements 206 are in the starting position g _{50 of} the webs 89 can be approximately 3 to 12.5 mm through. Spring means, for example by springs 227, however, are approximately 6.5 mm in terms of strength, each of which is optimal between the arm, the brick protector and the easy flexibility 209 and one of the vertical frame elements. The recesses 94 are attached to a brick th 217 protruding pin 228. of the specified size approx. 25 mm from the brick

In the view shown in Fig. 19 of the sinking end 55 arranged remotely and having a vertical station 60, a hydraulic cylinder 222 and the length of the associated structure running to the longitudinal axis of the brick is omitted, so that the work is about 35 mm, a depth of approximately 12 mm and tool holder assembly 206 is more visible. The width of about 6.5 mm. The staple spring 227 is removed and the pin 228 broken off. 95 are preferably made of a wire with a from Fig. 19 it can be seen, the brick 60 having thickness of 1.2 mm and are approximately 25 mm wide, 221 guides the end edges 229 that are tapered, with the ends approximately 11 mm long . A clamp of this size so that anything crooked from the conveyor 37 is strong enough to straighten a steel-delivered brick. to penetrate sheet metal of the thickness specified above.

In FIGS. 20 and 21, other embodiments are shown, which are wide enough to bridge the sheet metal casing with other ends 65 of different widths between the tabs 230 and 231, 232 , which is also provided by an end tab 93 the length of the channel-like interruption 233 or 234 from each other end portions of the brackets so dimensioned that they are separated into the. As Fig. 20 shows, the almost recess 94 penetrate, form the bottom surface of the recess

Claims (4)

I 235 save 94 touch and thereby hold the metal cladding on brick 55. In the description, preferred embodiments of the invention are explained. Embodiments which differ therefrom are possible within the scope of the invention. Patent claims: 1. Device for applying a sheet metal jacket to refractory, cuboid objects, in particular bricks, in which an object and a piece of sheet metal are first brought together, then the sheet metal piece with the help of vertically movable bending rollers around the longitudinal edges of the object resting on the sheet metal bent, whereupon the sheet metal piece with the help of horizontally movable bending rollers is bent around the remaining longitudinal edges of the object, characterized ge ao in that a stepwise drivable conveyor is provided, the input side of which each deliver with a piece of sheet metal and an article-delivering device and along which at a distance as a pair of vertically movable bending rollers, a horizontally movable pair of bending rollers and a lifting mechanism can be actuated from one another and at the same time are arranged, the for feeding and removing the already encased objects to or from one arranged above the conveyor Stapling mechanism is provided in which the two opposite edges of the sheet metal jacket stapled together with brackets. 2. Apparatus according to claim 1, characterized in that in the vicinity of the output side of the conveyor at a distance from the lifting mechanism, a lowering mechanism is arranged, which for Countersink the staples used by the stapling mechanism is provided. 3. Apparatus according to claim 1, characterized in that for each pair of bending rollers A hydraulically actuated holding ram is provided above the conveyor. 4. Apparatus according to claim 3, characterized in that the horizontally movable Bending roller pair are arranged laterally from the conveyor clamping jaws. Considered publications:
French Patent No. 418 076;
British Patent No. 403880;
U.S. Patent Nos. 2491757,3 034199. In addition 4 sheets of drawings 709 518/180 2.67 © Bundesdruckelei Berlin