JPH0535963Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement in a roller for taking up a strip steel plate (hereinafter referred to as a coil steel plate) cut into a predetermined width.

(Prior Art) Usually, a coiled steel plate cut into a predetermined width is wound up by a take-up roller, and the take-up roller conventionally used has a structure as shown in Fig. 3. . That is, the take-up roller 22 is arranged in the shape of a roller around the main shaft 11 which can expand and contract in the radial direction, so that the take-up roller blocks 12, 13, and 14 can expand and contract in unison with the expansion and contraction of the main shaft 11. There is. A groove 15 is formed in the winding roller block 12 for inserting and holding the tip end portion of the coil steel sheet to be wound (hereinafter simply referred to as the starting end A of the coil steel sheet). After inserting the starting end A of the steel plate, the winding roller 22
By rotating the winding roller 22 in one direction,
The coiled steel plate is rolled into a roll. Thereafter, after winding the coiled steel plate to a predetermined length on the winding roller 22, the diameter of the main shaft 11 is reduced, and the winding roller blocks 12, 1 arranged around the main shaft 11 are
3 and 14 also move together with the diameter reduction of the main shaft and contract in the axial direction. Then, the inner circumferential surface of the rolled coil steel plate is slightly separated from the circumferential surface of the take-up roller 22, and the rolled coil steel plate is loosely fitted to the take-up roller 22, so that the main shaft of the take-up roller 22 It becomes easier to pull out from 11. In this way, after the rolled coiled steel sheet is in a state where it can be easily pulled out, the rolled coiled steel sheet is pulled out in the axial direction of the take-up roller 22, thereby extracting the rolled coiled steel sheet from the axial side of the main shaft 11. It is something.

(Problem to be Solved by the Invention) However, according to the above-described winding roller, the starting end A of the coil steel sheet inserted into the groove 15 tends to come off when the coil steel sheet is wound, and it is difficult to insert the coil steel sheet into the groove 15 by some other means. It was troublesome because it had to be locked so that it would not come off. Further, when the coil steel plate wound around the take-up roller 22 in a roll shape is pulled out and removed from the axial end of the take-up roller 22, the starting end A of the coil steel plate is
The main shaft 11 has the disadvantage that it bites strongly into the groove 15 and cannot be pulled out from the groove 15, and the contraction of the main shaft 11 becomes uneven. However, it took more time than necessary and could not be easily removed, resulting in a decrease in the efficiency of subsequent winding operations. Furthermore, in addition to problems such as scratches on the surface of the coil steel plate when prying the starting end A of the coil steel plate from inside the groove 15 using a special tool, the amount of contraction of the main shaft 11 is increased to remove the starting end A of the coil steel plate. It has been considered to make the coils easier to remove, but in that case, there was a problem that the gaps between the take-up roller blocks 12, 13, 14 would become too wide and the edges of the blocks would scratch the surface of the coil steel plate.

The present invention has been devised in view of the above-mentioned problems, and is designed to ensure that the starting end of the coil steel plate is securely locked to the take-up roller, and that the roll-shaped coil steel plate can be quickly and easily removed after being wound. The purpose of the present invention is to provide a take-up roller that can perform the following operations.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a coiled steel sheet take-up roller in which a plurality of arc-shaped blocks are arranged around a main axis that can expand and contract in the radial direction. A concavity continuous in the longitudinal direction is formed in one of the blocks, and a fixing piece whose outer peripheral surface is formed in an arc shape to match the arc-shaped block is fixed to the surface side of this recess, and a fixing piece is attached inside the recess. By installing a movable presser piece that can freely move toward and away from the holder, a gap is formed between the two in an oblique direction for clamping the starting end of the coil steel plate, and the movable presser piece is inserted from both ends of the recess. A pair of wedge-shaped slide pieces are arranged on the lower side so that they can be pushed in the axial direction by rotating the rotation shaft along a rotation shaft installed in the axial direction, and the amount of pushing of these wedge-shaped slide pieces is determined. It is characterized in that the gap size can be adjusted by.

(Function) According to the configuration of the present invention, when winding a coiled steel sheet, the diameter of the main shaft is expanded together with the circular arc blocks disposed around the winding roller to expand the diameter of the winding roller.
Next, the starting end of the coil steel plate is inserted into the gap for clamping the starting end of the coil steel plate formed between the fixed piece having an arcuate surface and the holding piece, and then a pair of wedge-shaped slide pieces are pushed in evenly from both the left and right sides. By pushing the wedge-shaped slide piece, the holding piece is lifted upward, and the starting end of the coil steel plate is evenly pressed against the arc-shaped fixing piece, so that it cannot be removed from the gap. In this manner, after the starting end of the coiled steel plate is irremovably clamped within the gap, the coiled steel plate is wound up to a predetermined length by rotating the take-up roller by the drive source. To remove the coiled steel sheet from the take-up roller, first pull back the pair of left and right wedge-shaped slide pieces to the outside. The pieces descend to widen the spacing dimension of the gap. When the gap widens, the starting end of the coil steel plate clamped within the gap becomes easy to pull out. Next, when the diameter of the main shaft is reduced, all the arc-shaped blocks arranged around the main shaft are also equally reduced in diameter in the axial direction. Then, the innermost circumferential surface of the rolled coiled steel sheet is slightly separated from the inner circumferential surface of the arc-shaped block and is loosely fitted, so that the rolled coiled steel sheet is separated from the axial end of the take-up roller. It becomes easier to remove. In this way, by pulling out the entire rolled coil steel plate from the take-up roller in the axial direction, it is possible to efficiently and easily remove it from the take-up roller.

(Example) Next, an example of the present invention will be described based on the accompanying drawings.

Figure 1 is a cross-sectional view of the main part of the take-up roller of the present invention when cut at right angles to the longitudinal direction, and Figure 2 is a cross-sectional view of the main part of the take-up roller of the present invention when cut in the longitudinal direction. be.

The take-up roller 1 includes a main shaft 2 that can expand and contract in the radial direction, and a plurality of arc-shaped blocks 3a and 3 that are arranged around the main shaft 2 so as to be able to expand and contract in unison with the expansion and contraction of the main shaft 2.
It consists of b and 3c. In particular, a recess 4 is formed in the arcuate block 3a in its longitudinal direction, and the recess 4 is formed in an arc shape on the surface side so that its outer peripheral surface coincides with the outer peripheral surface of the arcuate block 3a. A fixed piece 5 is fixed to the fixed piece 5, and a presser movable piece 6 is movably disposed inside the lower side of the fixed piece 5 so as to be able to move toward and away from the fixed piece 5. A gap 7 for clamping the starting end of the coil steel plate is formed between the holding movable piece 6 and the holding movable piece 6. This gap 7 is oblique to the outer peripheral surface of the block. Further, a pair of wedge-shaped slide pieces 8a and 8b are arranged on the lower side of the movable presser piece 6 so as to be pushed in the axial direction from both left and right ends of the recess 4. Furthermore, this wedge-shaped slide piece 8
a, 8b are designed to slide while engaging with dovetail grooves 9a, 9b arranged inside from both left and right ends of the recess 4, and these wedge-shaped slide pieces 8a, 8b are provided with a screw thread. Screws for insertion 10a, 1
0b is screwed on. In addition, the above screw 10a
is a right-hand thread, and screw 10b is a left-hand thread,
In addition to what is shown, for example, a wedge-shaped slide piece 8
In a and 8b, the pushing means may be configured to be pushed in or pulled out by external hydraulic means. Further, the expanding/contracting means for the expandable/retractable main shaft 2 may be any known means, and the means for arranging the arcuate blocks 3a, 3b, 3c around this main shaft 2 may also be any conventional means.

In this way, the above-mentioned winding roller 1 expands the diameter of the main shaft 2 and forms arc-shaped blocks 3a, 3b, 3 on this.
c moves simultaneously and the diameter is expanded. In this way, first, the diameter of the entire winding roller 1 is increased, and then the winding operation of the coil steel plate is started. The starting end A of the coil steel plate is inserted into the gap 7 cut diagonally from the outer peripheral surface of the arcuate block 3a, which is one of the arcuate blocks of the take-up roller 1, and the wedge-shaped slide pieces 8a, 8b are inserted from the left and right sides.
When the coil steel plate starting end A is inserted into the gap 7, the holding movable piece 6 rises and the starting end A of the coil steel plate is inserted into the gap 7.
is fixed to the inner surface of the arc-shaped fixing piece 5 in a press-contact state, and then the coil steel plate can be wound up. After winding, when the wedge-shaped slide pieces 8a and 8b are twisted back to the outside, the presser movable piece 6 descends and the gap in the gap 7 is expanded,
The pressed state of the coil steel plate starting end 11 against the inner surface of the arc-shaped fixed piece 5 is released, and the coil steel plate starting end 11 is brought into a relaxed state.
After that, by reducing the diameter of the main shaft 2, the arc-shaped block 3
The diameter of the take-up roller 1 is reduced by reducing the diameter of a, 3b, and 3c. After reducing the overall diameter of the take-up roller 1 in this way, the work to remove the rolled coil steel sheet from the take-up roller 1 begins.The roll-wound coil steel sheet is pulled out from the axial direction of the take-up roller 1. This allows for quick and easy removal from the take-up roller 1.

(Effects of the invention) As described above, the winding roller of the invention can firmly clamp the starting end of the coil steel plate to prevent it from coming off when winding the coil steel plate. Winding work can be performed safely without fear of the starting end of the coil steel plate coming off, and after the winding work is completed, the starting end of the coil steel plate can be unclamped.
By reducing the entire diameter of the take-up roller, it can be easily removed from the take-up roller in its axial direction, improving work efficiency. In addition, since the clamping state of the starting end of the coil steel plate can be released without using special tools, there is no risk of damaging the coil steel plate, which is not only advantageous in terms of maintaining product quality, but also The starting end of the coil steel plate is easy to come off after the work is completed, so the amount of expansion and contraction of the take-up roller can be reduced, and there is an advantage that damage to the surface of the coil steel plate from this point can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the main part of the take-up roller of the present invention when cut at right angles to the longitudinal direction, FIG. 2 is a cross-sectional view of the main part of the take-up roller of the present invention when cut in the longitudinal direction, FIG. 3 is a sectional view of a main part of a conventional take-up roller taken at right angles to its longitudinal direction. 1... Winding roller, 2... Main shaft, 3a, 3b,
3c...Circular block, 4...Recess, 5...Circular fixed piece, 6...Movable presser piece, 7...Gap for coil steel plate starting end clamp, 8a, 8b...Wedge-shaped slide piece, 9a, 9b...Dovetail groove, 10a, 1
0b...screw, A...starting end of coil steel plate.

Claims (1)

[Claims for Utility Model Registration] In a coiled steel sheet take-up roller in which a plurality of arcuate blocks are arranged around a main shaft that can be expanded and contracted in the radial direction, one of the arcuate blocks has a recess that is continuous in the longitudinal direction. A fixing piece whose outer peripheral surface is formed in an arc shape to match the arc-shaped block is fixed to the surface side of the recess with a gap provided between the upper edge of one of the recesses and a gap for inserting the starting end of the coil steel plate, A movable presser piece that moves toward and away from the fixed piece is installed inside the recess, and the fixed piece and the movable presser piece form a gap for clamping the starting end of the coil steel plate, and the movable presser piece is inserted from both ends of the recess. A pair of wedge-shaped slide pieces are disposed on the lower side of the holder so that they can be pushed in the axial direction along a threaded rod installed in the axial direction by rotating the threaded rod,
The size of the clamping gap can be adjusted depending on the amount of pushing of these wedge-shaped slide pieces, so that the clamping gap extends obliquely into the recess in continuity with the insertion gap. A coiled steel sheet take-up roller, characterized in that the opposing surfaces of the fixed piece and the movable presser piece are formed as slopes.