FI67503C - ANORDNING FOER LOESGOERING AV EN RULLE FRAON EN RULLKONSTRUKTION - Google Patents

Description

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U.S. Pat. No. 4,847,607 U.S. Pat. No. 4,847,607 U.S. Pat. No. 4,847,607 U.S. Pat. 966432, 972552 (71) Coiled Investments, Inc., Wimington Trust Center, Rodney Square North, Wilmington, Delaware 19801, USA (72) John William Rogers, Shaker Heights, Ohio, USA (74) Oy Kolster Ab (54) Device for removing a roll from a roll structure -

Anordning för lösgöring av en rulle frän en rul1konstruktion

The invention relates to a device for detaching a roll from a roll structure consisting of a plurality of axially spaced rollers interconnected by frangible joints and having an axial hole extending therethrough, the device comprising a frame and a spindle which can be inserted into the axial hole to support the roll structure.

In the manufacture of a rolled sheet, it is customary to make a web product having a greater width than required by the end user and then cut the web lengthwise into narrower strips or strips of the desired width. According to this practice, the metal web is rolled after rolling, after which in a separate step the rolled web is placed in an unwinder, unwound from a roll, passed through a longitudinal cutting station and the strips thus obtained are rewound in a winder into numerous separate rolls.

2 67503

An improved method of making strip coils is disclosed in U.S. Patent Applications 713,599, 818,795 and 819,313, filed on August 12, 1976, July 25, 1977 and July 27, 1977, respectively. According to this improved method, after rolling the metal, the web is longitudinally cut along lines along its edge. in such a way that dividing lines are formed with spaced apart bases connecting the edges of adjacent strips together, so that the winding results in a roller structure consisting of a plurality of rollers joined together by brittle connecting parts, i.e. bases. It has been thought that the transport and the majority of the processing steps take place in question. the structure being indivisible was complete. Thereafter, either at the point of use or at the intermediate station, the individual sheet metal strips can be detached from the larger roll structure as they are unloaded therefrom, e.g. when fed to a press or punch.

U.S. Patent No. 2,742,965 discloses a device for detaching a roll from a roll structure. In this known device, two spindles are attached to two frames, which go to the hole in the roller structure from opposite ends. The structure of the present invention has only one frame and one mandrel that goes into a hole in the structure at one end. The mandrel extends the entire length of the hole, whereby a movable member positioned on the mandrel at an axial distance from the portion contacting the surface of the hole comes into contact with the opening surface of the removable roller. Due to this special feature of the structure, the device according to the present invention can be moved and operated by one worker, while several workers and a crane are required to move the above-mentioned known device.

U.S. Patent No. 3,904,097 discloses an apparatus for detaching coils of light metal material, such as paper, fabric, plastic, or metal coils, from a roll structure, which apparatus differs significantly in structure and purpose from the apparatus of the present invention.

However, in some applications, such as when the belt has to be fed to several separate machine tools at the same time, it is advisable to separate the respective belts from the roll structure as rolls in order to facilitate the handling of the material. Although 3 67503 devices are known in the art for separating rolls of interconnected paper or other light web materials, these devices have size and strength limitations to prevent their use in sheet metal products, as is the case in these applications where the roll structure may weigh more than 9 tons and weigh more than 9 tons. and wherein the single roll of the roll structure weighs from 71 kilograms upwards per cm of width. In addition, these applications require forces as high as 4.5 tons to simultaneously break all the supports connecting the unit rolls to the roll structure.

Accordingly, it is an object of the present invention to provide such a device.

The device according to the present invention is characterized in that the mandrel is freely supported on a frame for receiving from one end to an axial hole of the roller structure and connecting the structure surface hole within the hole, the movable member being supported by the mandrel and axially spaced from the surface contacting portion substantially perpendicularly with respect to the spindle shaft, and that the drive means is operatively coupled to the movable member for displacing it and applying a force against the surface of the hole of the detachable roller of sufficient size to break the joints between the roller and the adjacent roller.

Other features of the invention appear from the appended claims.

The invention will be explained in more detail by means of examples with reference to the accompanying drawing, in which Fig. 1 is a vertical longitudinal sectional view taken along line 1-1 of Fig. 3 of a roll unwinding apparatus according to a first embodiment of the present invention; Fig. 2 is a view taken along line 2-2 of Fig. 3; Figure 3 is a top view of the device of the figure; Figure 4 is an end view of the left end of the device of Figure 1; Fig. 5 is a sectional view taken along line 5-5 of Fig. 3; Fig. 6 is a partial side view of a spindle unit of the present invention with the anchor in contact with the roller structure; Fig. 7 is a view similar to Fig. 6 showing the spindle unit after the roll has been detached from the roll structure; Fig. 8 is a vertical sectional view of a device according to a second embodiment of the present invention; Fig. 9 is a sectional view taken along line 9-9 of Fig. 8; Fig. 10 is an end view of the device of Fig. 8; Fig. 11 is a fragmentary longitudinal sectional view of the apparatus of Fig. 8 showing its working parts at an intermediate stage of the work process; and Fig. 12 is a view similar to Fig. 11 showing the working parts of the device after the roller has been detached from the roller structure.

Figures 1 to 7 show a device 10 used to separate the rolls 12 from a rolled metal web structure 14, a multi-roll structure. The structure 14 is as described in U.S. Patent Application 713,599 (JW Rogers), in which the structure is formed of a rolled sheet metal web having a plurality of transversely spaced dividing lines 16 defining weakly interconnected rolled strips. the reels. The dividing lines 16 have spaced apart webs of web material (not shown) that interrupt the gaps between adjacent strips and form joints between the rollers 12. The structure 14 is rolled by aligning the separation lines 16 in substantially the same plane, i.e. radially aligned, so that the individual strips can be removed in rolls 12 at the same time by breaking the bases of each respective separation line.

The roll release device 10 is used to break the supports of the roll structure 14 and has a vertical frame body 20 on a transverse bottom beam 22. From the cross beam 22 proceeds two opposite spaced horizontal legs, i.e. the arms 24, 26, which take over the structure 14 and form the rest of the base of the device. On the outer side of the free ends of the arms 24 and 26, wheels 28 and 30 are placed on the shaft support supports 32, the third wheel 34 being connected to the pivot support rail 36 located behind the body 20 to allow movement of the device.

The body 20 has two opposed spaced apart pillars 38 and 40 on a transverse base beam 22 and connected at their upper ends together by a top plate 42. The opposing surfaces of each pillar 38 and 40 have two spaced apart corner rails 44 and 46 (Fig. 3) forming vertical guide grooves 52. Each guide groove 52 may be provided with wear plates 56, as shown.

The guide grooves 52 are arranged to move vertically up and down by a carriage 58. This comprises two opposite spaced apart vertical supports 60,62 which are> connected at the top by a cross support 64. Each of the vertical supports 60,62 is formed vertically spaced openings vertically spaced apart. for mounting fixed shafts 68 and 70, each having at its opposite ends free-rotating wheels 72 set to roll in respective guide grooves 52. The carriage 58 is moved up and down as will be explained later by a double-acting drive 73 comprising a vertical cylinder 74 supported at the bottom by a cross member 22 and having a movable bushing 75 connected to a transverse upper support 64 of the carriage.

On the carriage 58 there is a spindle unit 76 which starts there parallel to the arms 24 and 26 and essentially equidistant from them and thus between them. The spindle unit 76 comprises two spaced apart support beams 78,80 attached at one end to the carriage 58. At the free ends of the beams 78 and 80 there is a cam sensor 82 with a substantially cylindrical base 84 and a conical front end 86. The cam anchor 82 in the vicinity of the rear end of the base 84 separated by the space 77, it has a vertically movable member 88 whose displacement is simultaneously used to break the bases of the separation line 16 by cooperating with the cam anchor 82 against opposite forces on opposite sides of the selected separation line. As best seen in Figure 2, the member 88 is C-shaped in cross section and substantially cylindrical in outer surface. The member 88 is connected to a buffer 92 at the end of the piston 84 of the double-acting cylinder 96 6 67503, the cylinder 96 itself being fixedly connected between the spindle beams 78 and 80. The end edges 98 of the member 88 are brought into contact with the plates 100 of the respective beams. to control the vertical movement of the member.

Attached to the rear side of the body 20 is a mounting plate 104 used to secure two hydraulic drive pumps 106 and 108, each connected by a connecting line (not shown) to its own actuators 73 and 96. up or down.

Mounted on the upper end of the body 20 are handles 141 so that the device can be manually guided relative to the roller structure 44 to position it correctly relative to the latter, as will be seen below.

The device 10 is arranged to handle a sheet metal roll structure 14 resting horizontally on the floor so that the ends of its axial hole 15 are visible and thus exposed to the insertion of the karay unit 76. Thus, the device 10 is manually controlled until the spindle unit 76 goes into the hole 15 of the roller structure 14 so far that the cam sensor 82 is located on one side of the selected separation line 16 and the member 88 on the other side thereof. For centering purposes, a scale 93 may be etched on the outer surface 90 of the member 88 to align the space 77 between the member 88 and the cam sensor 82 with the selected separation line 16 of the roller structure 14.

Thereafter, with the directional valve 112 of the drive pump 106 correctly positioned, the respective pump lever is used to transfer the working fluid to the motor 73 and thus drive the carriage 58 downward and cause the cam anchor 82 to apply a downward force to the inner surface of the roller structure 14 anchored to the floor. Thereafter, with the drive pump 108 properly positioned by the directional valve 112, the respective pump hand lever 110 is used to pump the working fluid to the fluid motor 96. This action causes the member 88 to rise and apply an upward force against the inner surface of the removable roller 12. Pumping is continued until the upward force generated is sufficient to break the bases connecting the

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7 67503 to the roll 12 structure 14, and to separate the roll 12 from the structure 14, as shown in FIG.

Once the roller 12 has been disconnected, the position of the valve 112 of the drive pump 106 is changed and the lever 110 is used to lift the carriage 58 and the cam sensor 82 to release the device 10 from the roller structure 14, after which it can be pulled out supporting the separated roller 12.

The device 110 shown in Figures 8-12 has a pedestal-type vertical body 118 from the lower end of which two opposite spaced-apart floor-standing legs 120 and 122 protrude.

The mandrel comprising the hollow cylindrical anchor member 124 is connected at one end, e.g. by welding, to the front surface of the body 118. The mandrel 124 extends forward from the body 118 parallel to the legs 120 and 122 and substantially equidistant therefrom. The diameter of the mandrel is such that it freely enters an axial hole 115 extending through the roller structure 114 to support the structure when raised above the floor.

At the free end of the mandrel there is a movable member, indicated in its entirety by the number 126 in the drawings, arranged to be moved vertically with respect to the axis of the mandrel. This unit 126 has a substantially rectangular base portion, i.e., a body 128, with two longitudinally spaced vertical clearance openings 130 slidably coupled to pins 132 extending diametrically across and engaging the tube member 126 at opposite ends. The body 128 has a central cavity 134 for a fluid motor 135 consisting of a cylinder 136 and a piston 138, the former being attached to the inner surface of the member 126 by a mounting piece 140 and the latter being threaded into a hole 142 in the body 128.

On the front side of the body 128, a shaft 144 is formed integrally therewith, the outer end portion 146 of which is threaded. The shaft 144 is in the manner of the threaded part 146 and the body 128. formed as a cylindrical bearing surface between the front side 148.

The bearing surface 148 of the shaft 144 is rotatably supported by an expansion unit comprising a cylindrical hub 152 in which a sleeve 154 is retained to rotatably mount the unit on the shaft. Attached to the hub 152 8 67503 at circumferentially spaced apart are a plurality, in this case four, of radial pins 156, each of which guidely receives an expansion segment 158 projecting through a hole 160 herein for radial inward and outward movement of the segment, as will be described later.

Each expansion segment 158 has a body portion having a curved outer surface 162 arranged in the expansion position to be in contact with the opposite inner surface of the axial hole 115 of the roller structure 114. The leading edge of the segment is inverted, as indicated by 164, to form, together with the leading edges of the other segments, a substantially conical surface to facilitate access to the spindle structure. The rear ends of the segments 158 are spaced a small distance, such as 166, from the free front end of the member 124 to provide a space between the rotating expansion structure 150 and the member 124.

A curved-conical surface 170 is formed on the underside of each segment 158 for contact with the conical surface 170 cooperating therewith with the expansion sleeve 172. A T-groove 174 is formed in the surface 168 of the segment to receive a corresponding T-rail 176, the four T-rails being integrally formed circumferentially spaced around the surface of the sleeve 172. The sleeve 172 has a clearance hole 178 for receiving the threaded portion 146 of the shaft 144, and the sleeve 172 is moved inwardly and outwardly along the shaft by a drive nut 180 associated therewith.

It can be seen from Figure 8 that the position of the shaft 144 in the body 144 is such that with the piston 138 in its fully retracted position and the upper surface of the body 128 abutting the engine mount 140 the centerline 145 of the shaft 144 is vertically downward from the spindle 124 centerline 125 the clearance between the inner surface of the hole 115 of the roller structure and the inner surface of the tube member 124 is. This dimensional relationship is necessary to allow the segments 158 of the expansion unit to evenly engage the roll structure around the circumference of the hole 115.

The device has a roller structure mounting motor 182 on a support 183 behind the vertical frame 118. This motor comprises a hydraulic cylinder 184 and a buffer 186, the front end of which is supported by a push plate 188. The motor 182 serves to move the roller structure 114 along the mandrel to place successive rollers 112 at the release point, as described below.

Device 110 operates as follows. With the piston 138 retracted to position the body 128 adjacent the cylinder retainer 140 and the drive nut 180 of the expansion unit 150 in its extended position, as shown in Figure 8, the expansion segments 158 are in their internal positions and the device is ready to receive the roller structure 114. This structure 114 is placed on the mandrel to abut the push plate 188. The positioning motor 182 is then started to push the roller structure 114 forward until its front end is located at the position mark 190 etched or otherwise provided on the outer surface of the segments 158.

This makes the separation line 116 of the extreme roller 112 flush with the space 166 between the expansion unit 150 and the free end of the member 124. The drive nut 180 of the expansion unit is then rotated inwardly to inflate the segments, i.e., to force them outwardly into tight contact with the surface of the hole 115 in the roller structure, as shown in Fig. 11. A motor 135 is then used to drive the piston 136 outward and move the body 128 down to bring the unit 126 into the position shown in Figure 12. This displacement of the unit 124 generates a sufficiently large force in question. to break the bases on the dividing line 116 approximately simultaneously so that the roller 112 held by the expansion unit disengages from the roller structure 114. When the roller 112 is detached from the structure 114, the expansion unit 150 can rotate freely on the shaft 114 so that the sheet 112 can be unwound from the sheet metal strip and fed to a machine tool or other process equipment.

It will be appreciated that the device described, in addition to being able to effectively remove unit rolls from such a roll structure in a minimally labor intensive manner and to avoid damage to the resulting sheet metal strip, is suitable for use as a roll unloader after separation from the roll roll structure. from the roller and feeds directly to the machine tool without the need for a roller transfer intermediate step. This elimination of the intermediate stage directly results in a reduction in the time, labor and costs required to process the product to be processed, so that the entire processing process becomes more efficient.

Claims (11)

An apparatus for detaching a roll (12 or 112) from a roll structure (14 or 114} comprising a plurality of axially spaced rollers (12 or 112) interconnected by frangible joints and having an axial hole (15 or 115) extending therethrough. ) comprising a frame (20 or 118) and a mandrel (76 or 124) which can be inserted into the axial hole (15 or 115) to support the roller structure (14 or 114), characterized in that the mandrel (76 or 124) is freely supported a frame (20 or 118) for receiving from one end to an axial hole (15 or 115) in the roller structure (14 or 114) and connecting the structure surface within the hole so that the movable member (88 or 126) is supported by a spindle (76 or 124) and axially spaced a surface-contacting portion of the structure, the member (88 or 126) being displaceable substantially perpendicular to the spindle axis, and that the drive means (96 or 135) is operatively connected to the movable means; a member (88 or 126) for displacing it and applying a force against the surface of the hole (15 or 115) of the detachable roller (12 or 112) by a sufficient size to break the connections between the roller and the adjacent roller. Device according to claim 1, characterized in that the drive means (96 or 135) comprise a liquid cylinder mounted on the mandrel (76 or 124). Device according to claim 1 or 2, characterized in that the spindle (76) is mounted on a carriage (58) movable in a vertical guide guide (52) of the frame (20) and in that a drive device (73) is mounted on the frame (20). ) and operatively connected to the carriage (58) to move it along the guide (52). Device according to Claim 3, characterized in that the drive device (73) is a double-acting liquid cylinder. Device according to claim 2, characterized in that the movable member (88) is a hollow, partially cylindrical member having a substantially C-shaped cross-section and having a mandrel (76) between the arms, and in that the fluid cylinder (96) is operatively connected to the mandrel (76). ) and the movable member (88) to provide a perpendicular displacement. 11. 11 67503 Device according to claim 1 or 2, characterized in that the movable member (126) is rotatably attached to the free end of the mandrel (124) to allow the roller (112) to rotate when the connecting parts are broken. Device according to claim 6, characterized in that the movable member (126) comprises a plurality of segments (158) and means (144, 172, 180) for applying the segments (158) radially into contact with the surface of the hole (115) of the removable roller (112). Device according to claim 7, characterized in that the application means comprise a shaft (144) on which the segments (158) are mounted for rotation, a sleeve (172) arranged on the shaft (144) and having an inclined surface (170) which cooperating with the inclined surface (168) of each segment (153) to radially extend or retract the segments (158) according to the axial movement of the sleeve (172), and means (180) for axially moving the sleeve (172) on the shaft (144). Device according to claim 8, characterized in that the sleeve moving means (180) is a nut threadedly connected to the helical part of the shaft (144). Device according to Claim 8 or 9, characterized in that the segments (158) are guided by pins (156) projecting radially from a hub (152) rotatably mounted on the shaft (144). 10 67503 Device according to one of Claims 8 to 10, characterized in that the segments (158) are fastened to the sleeve (172) by means of a connection between the T-bar (176) and the groove (174) between each segment (158) and the sleeve (172). 67503