JP3732950B2 - Steel strip joining device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a steel strip joining apparatus that performs butt joining of steel strips in a continuous processing line of steel strips.
[0002]
[Prior art]
The present applicant has previously disclosed a strip bonding apparatus B provided for the above-described purpose in Japanese Patent Laid-Open No. 7-284815, and the configuration thereof is shown in FIG. As shown in the figure, the strip joining apparatus B substantially includes a leading side fixed clamping means 102 that clamps the vicinity of the cutting end portion of the preceding strip 100 and a trailing side movable member that clamps the vicinity of the cutting end portion of the trailing strip 101. It has a clamping means 103 and a groove processing blade 104 at the cutting end, and moves the groove processing blade 104 in the direction perpendicular to the line. A grooved blade shifting means (not shown) for shifting the machining blade 104 between the grooved machining position of the preceding strip 100 and the grooved machining position of the succeeding strip 101 and a trailing movable clamp means 103 are brought into contact with each other. And a joining means (not shown) for joining the cut ends.
With the above-described configuration, the preceding and succeeding strips 100 and 101 can be joined regardless of whether or not there is a louver facility on the upstream side of the molding machine.
[0003]
[Problems to be solved by the invention]
However, the above-described strip bonding apparatus B still has the following problems to be solved.
(1) That is, in FIGS. 14B to 14E, in order to make the butting surfaces (joining seams) of the preceding strip 100 and the succeeding strip 101 parallel in the butting joining of the succeeding strips 100 and 101, After the first and subsequent strips 100 and 101 are fixed, the abutting surface is cut by the groove processing means 105 to ensure parallelism and the abutting operation is performed. However, such a groove processing means 105 has a complicated structure, which increases the size of the strip joining apparatus B and increases the equipment cost. Moreover, since a cutting process is required, process time becomes long.
{Circle around (2)} A step is generated due to warping of the leading end of the preceding strip 100 and the succeeding strip 101, and there is a risk of joint breakage occurring in the next step.
(3) At the time of initial strip feeding, there is a risk of causing problems such as impossibility of threading due to bumping.
The above-mentioned problems are particularly noticeable when the strip is a hot material.
[0004]
The present invention has been made in view of such circumstances. The parallelism of the abutting surfaces of the preceding steel strip and the subsequent steel strip is easily and quickly secured without performing groove processing, thereby reducing the equipment cost. An object of the present invention is to provide a steel strip joining device that can be joined reliably even when there is a step, warp, or bend on the abutting surface.
[0005]
[Means for Solving the Problems]
The steel strip joining apparatus according to claim 1, wherein the steel strip joining device according to the first aspect includes a leading-side fixed clamp means for clamping a cut end portion of a preceding steel strip having a rear end portion of a poorly shaped steel strip cut, and a poorly shaped steel strip. A movable trailing movable clamp means for clamping the cutting end portion of the trailing steel strip whose front end is cut, and the preceding steel strip and the trailing steel which are abutted by the movement of the trailing movable clamp means The distance for measuring the horizontal distance between the joining means for joining the cut ends of the strips, and the both sides of the cut ends of the preceding steel strip and the corresponding both sides of the cut end of the following steel strip Based on the deviation between the measuring means and the measured horizontal distance, one side portion of the trailing movable clamp means is moved relative to the other side by a predetermined distance, and the two cut ends are placed on a horizontal plane. ; and a shift means for collimating, moreover, the leading side fixed Comprising a lifting means for lifting the ramp means.
[0006]
The steel strip joining apparatus according to claim 2 is the steel strip joining apparatus according to claim 1, wherein the shift means is disposed along both side portions of the trailing movable clamp means, and each of the telescopic rods It consists of a pair of left and right shift cylinders connected to both sides of the trailing movable clamp means.
Space 3. strip joining apparatus described, which is formed in the strip joining apparatus according to any one of claims 1 and 2, between the leading side clamp means and said trailing-side movable clamp means And a passage plate roll raising / lowering means that can be easily passed through the cut end of the steel strip by raising and lowering the passage plate roll.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
[0008]
Hereinafter, with reference to FIGS. 1-9, the structure of the steel strip joining apparatus A is demonstrated concretely.
As is apparent from FIGS. 1 to 5 showing the overall structure of the steel strip joining apparatus A, the preceding is to clamp the cut end 20 (particularly see FIG. 5) of the preceding steel strip 10A in which the rear end having a poor shape is cut. A leading side fixed clamping device 21 that is an example of a side fixing clamp means and a movable trailing side that clamps the cut end 22 (especially, see FIG. 5) of the trailing steel strip 10B from which the front end having a poor shape is cut. A trailing side movable clamp device 23, which is an example of a movable clamp means, is disposed at a predetermined interval on the downstream side and the upstream side of the sheet passing line.
[0009]
As shown in FIGS. 1 to 3, the upper part of the space formed between the preceding fixed clamp device 21 and the trailing movable clamp device 23 is abutted by the movement of the trailing movable clamp device 23. A joining machine 24, which is an example of a joining means for joining the cut ends of the preceding steel strip 10A and the succeeding steel strip 10B, 20 and 22, is disposed. Located outside the line.
[0010]
As shown in FIGS. 1 to 3, above the space formed between the preceding side fixed clamping device 21 and the trailing side movable clamping device 23, both side portions 20a of the cutting end portion 20 of the preceding steel strip 10A are provided. , 20b and a CCD which is an example of a distance measuring means for measuring horizontal distances a and b (see FIGS. 5 and 10) between corresponding side portions 22a and 22b of the cut end portion 22 of the trailing steel strip 10B. A camera 25 is arranged.
Further, as shown in FIG. 1, one side of the trailing movable clamp device 23 is provided on one side of the trailing movable clamp device 23 based on the measured deviation (ab) between the horizontal distances a and b. Left and right shift cylinders 26 and 27 are arranged as an example of shift means for moving the side portion relative to the other side by a predetermined distance and making both cut end portions 20 and 22 parallel to each other on a horizontal plane.
[0011]
Hereinafter, the structure of each part of the steel strip joining apparatus A having the above-described structure will be described in detail with reference to FIGS.
First, in particular, the configuration of the leading fixed clamp device 21 will be described with reference to FIGS. 1 and 6 to 8.
As shown in FIGS. 6 and 7, the leading side fixed clamping device 21 includes a rectangular lifting frame 34 composed of left and right vertical frames 30 and 31 and upper and lower horizontal frames 32 and 33. The left and right vertical frames 30 and 31 of the elevating frame 34 are attached to the left and right fixed guide frames 35 and 36 so as to freely move up and down, and brackets 37 and 38 extending leftward and rightwardly protrude from the upper part thereof. It is installed. The lower portions of the brackets 37 and 38 are connected to the tip portions of the telescopic rods 41 and 42 of the entire lifting cylinders 39 and 40 whose base portions are fixed to the upper outer surfaces of the left and right fixed guide frames 35 and 36, respectively. Yes.
[0012]
As shown in FIG. 7, a lower clamp beam 43 is fixed on the lower horizontal frame 33 of the lifting frame 34, and the preceding steel strip 10 </ b> A cooperates with the lower clamp beam 43 above the lower clamp beam 43. An upper clamp beam 44 capable of clamping the cutting end 20 is disposed so as to be movable up and down.
[0013]
A pair of upper clamp beam elevating cylinders 45 and 46, which are examples of elevating means, and elevating guide rods 47 and 48 are attached to the upper horizontal frame 32 symmetrically to the left and right. It is connected to the upper surface of the beam 44.
[0014]
With the above-described configuration, when the steel strip is passed, the entire lifting cylinders 39 and 40 are driven to lower the entire lifting frame 34 to prevent the steel strip from being damaged by the lower clamp beam 43. At the time of joining, the entire elevating cylinders 39 and 40 are driven to raise the entire elevating frame 34 and the upper clamp beam elevating cylinders 45 and 46 are driven to raise the cutting end 20 of the preceding steel strip 10A to the upper and lower clamps. It can be clamped by the beams 44, 43.
[0015]
The left and right vertical frames 30 and 31 of the elevating frame 34 are attached to the left and right fixed guide frames 35 and 36 so as to be movable up and down with a predetermined play, and as shown in FIGS. A spherical bush 49 is formed at the tip of the telescopic rods 41 and 42 of 39 and 40, and a spherical receiving seat 50 formed on the lower surface of the brackets 37 and 38 is supported on the spherical bush 49.
With this configuration, the lifting frame 34 can be tilted in the left-right direction by independently driving the entire lifting cylinders 39, 40, and as shown in FIG. Even when it is inclined in the direction, it can be easily adjusted by inclining the cut end 20 of the preceding steel strip 10A in accordance with this inclination.
[0016]
As shown in FIGS. 6 and 7, a through-plate roll 51 is attached to the lower part of the space formed between the preceding fixed clamp device 21 and the succeeding movable clamp device 23 so as to be movable up and down. Roll elevating devices 52 and 53, which are examples of the passing plate roll elevating means for elevating and lowering the through plate roll 51, are disposed on both sides of the preceding fixed clamp device 21.
[0017]
As shown in FIG. 6, the bases of the roll elevating cylinders 54 and 55 are fixed to the upper outer surfaces of the left and right fixed guide frames 35 and 36, and the telescopic rods 56 and 57 of the roll elevating cylinders 54 and 55 extend downward. is doing. Oscillating shafts 60 and 61 are pivotally supported by bearing boxes 58 and 59 disposed in a lower portion of a space formed between the preceding side fixed clamping device 21 and the trailing side movable clamping device 23. One end of first swing arms 62 and 63 is fixed to one end of 60 and 61, and the other end of the first swing arms 62 and 63 is connected to the telescopic rods 56 and 57 of the roll lifting cylinders 54 and 55. It is pivotally connected to the tip. Further, the bases of the second swing arms 64 and 65 are fixed to the other ends of the swing shafts 60 and 61, and both ends of the passing plate roll 51 are fixed by the tip portions of the second swing arms 64 and 65. Is pivotally supported.
[0018]
With such a configuration, as shown in FIGS. 2, 3 and 12, etc., even if the cutting end of the steel strip 10 is warped by driving the roll elevating cylinders 54 and 55, the sheet passing roll By lifting 51 up to the pass line, the cut end of the steel strip 10 can be easily passed without striking the lower clamp frame 43.
[0019]
Next, the configuration of the trailing movable clamp device 23 will be described with reference to FIGS. 1, 4, 5, and 9.
As shown in FIGS. 4 and 9, the trailing movable clamp device 23 has a rectangular shape composed of upper and lower horizontal frames 66 and 67 and left and right vertical rods 68 and 69 connecting both ends thereof. The elevating frame 70 is provided. The left and right vertical rods 68 and 69 of the lift frame 70 are rotatably attached to the left and right lift side plates 71 and 72 via bushes 68a and 69a, and the left and right lift side plates 71 and 72 are fixed to the left and right. It is attached to the guide frames 73 and 74 so as to be movable up and down. Brackets 75 and 76 extending leftward and rightwardly protrude from upper portions of the left and right elevating side plates 71 and 72, respectively. The lower ends of the brackets 75 and 76 are connected to the front ends of the telescopic rods 79 and 80 of the entire elevating cylinders 77 and 78 whose bases are fixed to the upper surfaces of the left and right fixed guide frames 73 and 74, respectively. .
[0020]
As shown in FIG. 4, a lower clamp beam 81 is fixed on the lower horizontal frame 67 of the lifting frame 70, and a trailing steel strip is cooperated with the lower clamp beam 81 above the lower clamp beam 81. An upper clamp beam 82 capable of clamping the cutting end 22 of 10B is arranged to be movable up and down.
[0021]
A pair of upper clamp beam elevating cylinders 83 and 84 and elevating guide rods 85 and 86 are attached to the upper horizontal frame 66 symmetrically to the left and right, and their lower ends are connected to the upper surface of the upper clamp beam 82, respectively. Has been.
[0022]
With the above-described configuration, when the steel strip is passed, the entire lifting cylinders 77 and 78 are driven to lower the entire lifting frame 70 to prevent the steel strip from being damaged by the lower clamp beam 81, and At the time of joining, the entire elevating cylinders 77 and 78 are driven to raise the entire elevating frame 70, and the upper clamp beam elevating cylinders 83 and 84 are driven to move the cutting end 22 of the trailing steel strip 10B up and down. It can be clamped by the clamp beams 82, 81.
[0023]
Further, as shown in FIGS. 1 and 4, the left and right fixed guide frames 73 and 74 are attached to shift frames 89 and 90 that are slidably attached to the shift guide frames 87 and 88 in parallel with the through plate lines. It is fixed. As shown in FIG. 5, the extension rods 91 of the left and right shift cylinders 26 and 27 disposed on both sides of the trailing movable clamp device 23 are disposed on the upstream end surfaces of the shift frames 89 and 90. The leading ends of 92 are connected by pivots 93 and 94.
[0024]
With this configuration, as shown in FIG. 10, a horizontal position between both side portions 20 a, 20 b of the cut end portion 20 of the preceding steel strip 10 </ b> A and corresponding side portions 22 a, 22 b of the cut end portion 22 of the subsequent steel strip 10 </ b> B. Even if there is a deviation in the distances a and b, the horizontal distances a and b are accurately measured and calculated by the CCD camera 25 and its control device, and the drive signals are shifted to the left and right shift cylinders 26 and 27 based on the calculated values. The two cutting end portions 20 and 22 can be made parallel to each other on the horizontal plane by moving one side portion of the trailing movable clamp device 23 relative to the other side by a predetermined distance.
[0025]
Next, a method for joining steel strips using the steel strip joining apparatus A having the above-described configuration will be described.
As shown in FIG. 1, when the cutting end 20 of the preceding steel strip 10A and the cutting end 22 of the following steel strip 10B are passed through the steel strip joining apparatus A, the cutting end 20 of the preceding steel strip 10A is obtained. The cutting end 22 of the trailing steel strip 10B is clamped by the preceding fixed clamping device 21 and the trailing movable clamp device 23, respectively.
[0026]
Next, in the manner described above, the CCD camera 25 is located between the both side portions 20a, 20b of the cutting end portion 20 of the preceding steel strip 10A and the corresponding side portions 22a, 22b of the cutting end portion 22 of the succeeding steel strip 10B. The horizontal distances a and b are measured. If there is a deviation (ab), the left and right shift cylinders 26 and 27 are driven so as to eliminate the deviation. Specifically, the left shift cylinder 26 is moved by the horizontal distance a and the right shift cylinder 27 is moved by the horizontal distance b within the same time. As a result, the cut end portion 22 of the succeeding steel strip 10B comes into close contact with the cut end portion 20 of the preceding steel strip 10A without gaps over the entire width.
[0027]
Thereafter, the joining machine 24 moves in a direction orthogonal to the plate line, and the cut end portions 20 and 22 of the preceding steel strip 10A and the succeeding steel strip 10B are joined.
Thus, in the present embodiment, the cut end portion 22 of the succeeding steel strip 10B comes into close contact with the cut end portion 20 of the preceding steel strip 10A in a close state over the entire width without performing groove processing, and the butt surface The degree of parallelism can be ensured easily and in a short time, and the equipment cost can be greatly reduced.
[0028]
In the present embodiment, as shown in FIG. 11, the leading fixed clamp device 21 can be moved up and down relatively with respect to the trailing movable clamp device 23, so the cutting end 20 of the leading steel strip 10 </ b> A. Even if there is a step in the height direction between the cutting end portion 22 and the cutting end portion 22 of the trailing steel strip 10B, the both cutting end portions 20 and 21 can be easily moved up and down by moving the leading side fixed clamping device 21. Therefore, it is possible to effectively prevent breakage troubles in the joint portion in the subsequent process.
[0029]
Furthermore, in the present embodiment, as shown in FIG. 12, the cut end of the steel strip 10 is provided below the pass line in the space formed between the preceding fixed clamp device 21 and the succeeding movable clamp device 23. Since the plate roll 51 that can rise to the pass line is provided, even if the cut end of the steel strip 10 has warping or bending, so-called bumping trouble can be prevented and smooth. Through plate can be performed.
[0030]
As described above, the present invention has been described with reference to one embodiment. However, the present invention is not limited to the configuration described in the above embodiment, and is described in the claims. Other embodiments and modifications conceivable within the scope of the above are also included.
For example, the steel strip joining device includes not only a fixed steel strip joining device but also a running steel strip joining device capable of joining steel strips in synchronism with the sheet passing operation.
[0031]
【The invention's effect】
In the steel strip joining apparatus according to claims 1 to 3, a horizontal distance a between the both side portions of the cutting end portion of the preceding steel strip and the corresponding both side portions of the cutting end portion of the succeeding steel strip by the distance measuring means, When b is measured and there is a deviation (ab), the shift means is driven so as to eliminate the deviation, so that the cutting end of the succeeding steel strip extends over the entire width to the cutting end of the preceding steel strip. It can abut in close contact with no gap. In this way, the cut end portion of the preceding steel strip is brought into close contact with the cut end portion of the preceding steel strip in the close state over the entire width without performing the groove processing, so that the parallelism of the abutting surface can be easily performed in a short time. It can be ensured, and the equipment cost can be greatly reduced.
In addition, since the leading fixed clamp means can be moved up and down relatively with respect to the trailing movable clamp means, a height direction between the cutting end of the preceding steel strip and the cutting end of the trailing steel strip Even if there is a step, it is possible to easily join the two cutting ends by matching the height of the leading side fixing clamp means, and it is effective for the trouble of fracture of the joint in the subsequent process. Can be prevented.
[0032]
In the steel strip joining apparatus according to claim 2, the shift means is disposed along both sides of the trailing movable clamp means, and the telescopic rods are respectively connected to both sides of the trailing movable clamp means. Since it is composed of a pair of left and right shift cylinders, the shift means can be manufactured at low cost and maintenance can be easily performed.
[0034]
In the steel strip joining apparatus according to the third aspect, the cutting end of the steel strip can be raised to the pass line by the passing plate roll raising / lowering means, so that the cutting end of the steel strip has a warp or a bend. However, it is possible to prevent stumbling troubles and perform smooth threading.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a steel strip joining apparatus according to an embodiment of the present invention.
FIG. 2 is a side view of the same.
FIG. 3 is a sectional side view of the same.
FIG. 4 is a front view of the same.
FIG. 5 is a plan view of the same.
FIG. 6 is a perspective view of a leading side fixed clamping device.
FIG. 7 is a front view of a leading-side fixed clamp device.
FIG. 8 is a perspective view of a main part of the preceding fixed clamp device.
FIG. 9 is a perspective view of a main part of a trailing movable clamp device.
FIG. 10 is an operation explanatory diagram of the steel strip joining apparatus according to one embodiment of the present invention.
FIG. 11 is an operation explanatory view of the steel strip joining apparatus according to one embodiment of the present invention.
FIG. 12 is an operation explanatory view of the steel strip joining apparatus according to one embodiment of the present invention.
FIG. 13 is an operation explanatory diagram of the steel strip joining apparatus according to one embodiment of the present invention.
FIG. 14 is an explanatory view for explaining the configuration and operation of a conventional steel strip joining apparatus.
[Explanation of symbols]
A steel strip joining device a horizontal distance b horizontal distance 10 steel strip 10A preceding steel strip 10B trailing steel strip 20 cutting end 20a side 20b side 21 leading side fixed clamping device 22 cutting end 22a side 22b side 23 Trailing side movable clamp device 24 Joiner 25 CCD camera 26 Left shift cylinder 27 Right shift cylinder 30 Left vertical frame 31 Right vertical frame 32 Upper horizontal frame 33 Lower horizontal frame 34 Elevating frame 35 Left fixed guide frame 36 Right fixed guide frame 37 Bracket 38 Bracket 39 Overall lift cylinder 40 Overall lift cylinder 41 Telescopic rod 42 Telescopic rod 43 Lower clamp beam 44 Upper clamp beam 45 Upper clamp beam lift cylinder 46 Upper clamp beam lift cylinder 47 Lift guide rod 48 Lift guide rod 49 Spherical bush 50 Spherical surface received Seat 51 Passing plate roll 52 Roll elevating device 53 Roll elevating device 54 Roll elevating cylinder 55 Roll elevating cylinder 56 Telescopic rod 57 Telescopic rod 58 Bearing box 59 Bearing box 60 Oscillating shaft 61 Oscillating shaft 62 First oscillating arm 63 First 1 swing arm 64 second swing arm 65 second swing arm 66 upper horizontal frame 67 lower horizontal frame 68 left vertical rod 68a bush 69 right vertical rod 69a bush 70 lift frame 71 left lift side plate 72 right lift side plate 73 Left fixed guide frame 74 Right fixed guide frame 75 Bracket 76 Bracket 77 Overall lift cylinder 78 Overall lift cylinder 79 Telescopic rod 80 Telescopic rod 81 Lower clamp beam 82 Upper clamp beam 83 Upper clamp beam lift cylinder 84 Upper clamp beam lift cylinder 85 vertical guide rods 86 lift guide rod 87 shifts the guide frame 88 shifts the guide frame 89 shifts the frame 90 shifts the frame 91 extendable rod 92 extendable rod 93 pivot 94 pivot

Claims (3)

A preceding-side fixed clamping means for clamping the cutting end of the preceding steel strip from which the rear end of the steel strip having a poor shape is cut;
A movable trailing side movable clamping means for clamping the cutting end portion of the trailing steel strip in which the front end portion of the steel strip having a poor shape is cut;
A joining means for joining the cutting ends of the preceding steel strip and the succeeding steel strip, which are abutted by the movement of the trailing movable clamp means;
Distance measuring means for respectively measuring horizontal distances between both side portions of the cutting end portion of the preceding steel strip and corresponding side portions of the cutting end portion of the subsequent steel strip;
Based on the deviation between the measured horizontal distances, a shift is made such that one side portion of the trailing movable clamp means is moved relative to the other side by a predetermined distance, and the two cut end portions are parallel to each other on a horizontal plane. Means ,
And the steel strip joining apparatus characterized by including the raising / lowering means which raises / lowers the said advance side fixed clamp means .   The shift means includes a pair of left and right shift cylinders disposed along both sides of the trailing movable clamp means, and each of which has a telescopic rod connected to both sides of the trailing movable clamp means. The steel strip joining apparatus according to claim 1, wherein It is arranged below the pass line in the space formed between the preceding fixed clamp means and the following movable clamp means, and the cut end of the steel strip is raised to the pass line by raising and lowering the through plate roll. The steel strip joining apparatus according to any one of claims 1 and 2, further comprising a plate roll raising / lowering means capable of performing the following.

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