JP4559987B2 - A threading table with excellent tip threadability - Google Patents

Description

  The present invention relates to a threading table, and more particularly to a threading table that is excellent in the threading characteristics of a metal strip (particularly a steel strip) and excellent in the threading property of the tip of the metal strip.

  Usually, when a steel strip, which is one of the metal strips, is transported to a predetermined place, a sheet passing table is used. In the conventional sheet passing table, only the table roll, only the wheel roll, or only the ball transfer is arranged at intervals in the sheet passing direction according to the steel strip to be passed. When a steel strip is passed through a passing plate table, the front and back of the steel strip are often welded together so that the tip is not passed. When the front and back were connected, the width of the steel strip meandering and sliding was not large, and there was little need to consider the vertical movement, vertical bending, and folding of the steel strip.

  However, when the steel strip wound on the steel strip coil is unrolled or when the continuous steel strip is cut, the tip of the metal strip passes through the sheet passing table.

  When the end of the steel strip passes, the selection of transport members such as the table roll, wheel conveyor and ball transfer described above is optimal considering the type of steel strip to be transported (for example, the hardness and thickness of the steel strip). I had to choose something. That is, the types of steel strips that can be used for the transport member as described above, such as those that can transport thin steel strips and those that can transport thick steel strips, are limited.

  For example, a table roll is excellent in load resistance and through plate stability (straightness of plate through), so it is suitable for transporting hard and thick steel strips, but it is soft because the table roll has high frictional resistance. Is not suitable for transporting thin steel strips. In addition, the wheel conveyor has moderate load resistance and plate stability, and the frictional resistance is not as great as that of the table roll, but the steel strip is bent when the end of the steel strip contacts the wheel side. There is a problem that it is trapped or the steel strip is wrinkled. In addition, ball transfer has the advantages of low frictional resistance and no wrinkles on the steel strip, but it has the disadvantages of not having excellent plate stability and low load resistance. Is not suitable.

  When the end of a soft and thin steel strip is introduced and transported, there is a problem that the end of the steel strip is caught by the transport member as described above and the steel strip is bent. In addition, when the end of a hard and thick steel strip is introduced and transported, the steel plate hits the transport member due to the vertical movement of the steel plate, which may shorten the life of the transport member. In order to solve such a problem, a method has been proposed in which a member that clamps the tip of the steel strip is provided on the sheet passing table and the steel strip is conveyed while pinching the tip of the steel strip (see, for example, Patent Document 1). ).

JP-A-9-323121

  However, in the conventional sheet passing table as described above, since each of the conveying members has both advantages and disadvantages, a certain type of steel strip can be passed through, but various types of steel strips can be used. The plate could not be passed through and lacked versatility. Further, in the method described in Patent Document 1, the steel strip is pinched in order to pinch the tip of the steel strip, and the quality of the steel strip cannot be maintained. Furthermore, since a member for clamping and moving the steel strip is required, there is a problem that the manufacturing cost of the sheet passing table is increased.

  Therefore, a steel strip with a wide thickness range (for example, about 0.2 to 4 mm) and material strength (for example, a tensile strength of 250 to 1500 MPa) can be passed through without providing a special conveying member. There has been a demand for a threading plate table that can satisfy all the requirements for the sheeting property (buckling resistance and rectilinearity) of the tip and the entire steel strip and the maintenance of the steel strip quality.

  Therefore, the present invention has been made in view of such problems, and the object thereof is to excel various types of steel strips with excellent load resistance and stripability of steel strips while maintaining the strip quality. It is an object of the present invention to provide a new and improved threading table that can be plated.

  In order to solve the above-described problems, according to one aspect of the present invention, there is provided a through plate table through which a metal strip introduced with an end portion at the top is passed. Provided is a threading table in which a plurality of wheel conveyors are disposed on the inner side in the width direction of the table, and a plurality of ball transfers are disposed on the outer side in the width direction of the threading plate table.

  According to such a configuration, the wheel conveyor provided on the inner side in the width direction of the passing plate table supports the substantially central portion of the metal strip to be passed, and the ball transfer provided on the outer side in the width direction of the passing plate table is the metal. It will support the outer edge of the strip. As a result, it was possible to prevent the deterioration of the quality of the metal strip caused by the end of the metal strip coming into contact with the side of the wheel conveyor, which was a drawback of the wheel conveyor, and the load resistance and threading of the wheel conveyor. It has the advantage of being excellent in straight running performance and the advantage that the ball transfer has low frictional resistance and it is difficult for wrinkles to enter the metal strip.

  The wheel conveyor is a roller-shaped conveying member in which a wheel is supported on a rotating shaft. The ball transfer is a conveying member including a sphere and a hole for supporting the sphere, and is rotatable in an arbitrary direction without moving the center of the sphere.

  A table roll having a driving means may be arranged on the upper surface of the above-described passing plate table with an interval in the passing plate direction. According to such a configuration, the table roller rotated by the driving means transmits the propulsive force to the metal strip. As a result, the table roller can increase the straightness of the metal strip while applying a propulsive force to the metal strip.

  The envelope surface connecting the upper ends of the plurality of wheel conveyors may be arranged higher than the envelope surface connecting the upper ends of the plurality of ball transfers. According to this configuration, the wheel conveyor supports most of the load of the metal strip applied to the sheet passing table, and a large load is not applied to the ball transfer. As a result, it is possible to improve the plate-passability of the metal strip while improving the load resistance and the straightness of the plate that were the disadvantages of ball transfer.

  The envelope surface connecting the upper ends of the plurality of wheel conveyors means a plane including all the upper ends of the plurality of wheel conveyors, and the envelope surface connecting the upper ends of the plurality of ball transfers is the upper end of the plurality of ball transfers. It means a plane that includes everything.

  The height difference between the envelope surface connecting the upper ends of the plurality of wheel conveyors and the envelope surface connecting the upper ends of the plurality of ball transfers may be 0.1 to 10 mm.

  The plurality of wheel conveyors and / or the plurality of ball transfers may be staggered in a region where each is disposed. According to such a configuration, the wheel conveyor and / or the ball transfer are arranged substantially evenly in the vertical, horizontal and diagonal directions. As a result, the metal strip supported by the wheel conveyor or ball transfer is not bent, and the quality of the metal strip can be prevented from deteriorating.

  The width of the region in which the plurality of wheel conveyors are disposed may be smaller than the width of the designed metal strip. According to such a configuration, the wheel conveyor supports only a part, not the entire width of the metal strip to be passed. As a result, the side surface of the metal strip does not come into contact with the wheel conveyor, and it becomes difficult for the metal strip to enter the metal strip.

  According to the present invention, a threading plate that is excellent in load resistance and the threading property of the end of the metal strip and the entire metal strip, and that allows various types of metal strips to be threaded while maintaining the quality of the metal strip. A table can be provided.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the present specification and drawings, components having substantially the same functional configuration are denoted by the same reference numerals, and redundant description is omitted.

  First, with reference to FIG. 1, a steel strip passing plate facility provided with a passing plate table according to a first embodiment of the present invention will be described. FIG. 1 is a schematic diagram for explaining a steel strip passing plate facility including a passing plate table according to the first embodiment of the present invention. In the following description, the coordinate axes shown in FIG. 1 are used.

  As shown in FIG. 1, the steel strip S passing plate facility according to the present embodiment includes two payoff reels 10A and 10B, a pinch roll 20, a leveler roll 30, a double cut shear 40, and a passing plate table 100. With.

  Steel strip coils around which the steel strip S is wound are mounted on the payoff reels 10A and 10B (hereinafter collectively referred to as the payoff reel 10). Driving means (not shown) such as a motor is connected to the pinch roll 20 and the leveler roll 30. Through these pinch rolls 20 and leveler rolls 30, the force from the drive means is transmitted to the steel sheet S as a propulsion force. The double cut shear 40 is a device that cuts the steel strip S in the width direction as necessary. The passing plate table 100 passes the plate in a predetermined passing direction (x-axis direction in FIG. 1) while supporting the steel strip S to which a propulsive force is applied. The through plate table 100 will be described in detail below.

  In the plate passing equipment for the steel strip S provided with the plate passing table 100 according to the present embodiment, the steel strip S unwound from the steel strip coil attached to the payoff reel 10 is transferred from the payoff reel 10 to the double cut shear 40. It is passed through. The steel strip S is propelled by a pinch roll 20 and a leveler roll 30 provided with driving means (not shown), respectively, and the steel strip S passing through the leveler roll 30 is supported by the through plate table 100, It passes through the double cut shear 40.

  1 includes two pay-off reels 10A and 10B, and two lines of an upper plate apparatus 50 and a lower plate apparatus 60 are provided. 1, the steel strip S is not unrolled simultaneously from the two payoff reels 10A and 10B, and these payoff reels 10A and 10B are mounted on one of the payoff reels 10. When all the steel strips S are unwound from the steel strip coil, it is provided to shorten the time required for replacing the steel strip coil. The number of payoff reels 10 provided in the threading equipment is not limited to the two shown in FIG. 1, but may be only one, for example.

  Subsequently, the through-plate table 100 according to the present embodiment will be described in detail with reference to FIGS. 2 and 3. 2 is a plan view of the threading plate table 100 according to the present embodiment, and FIG. 3 is a cross-sectional view of the threading plate table 100 taken along the line AA of FIG. In describing each figure, the coordinate axes shown in the figure are used.

  The width of the threading plate table 100 according to the present embodiment (the width in the y-axis direction in FIG. 2) is, for example, the maximum width of the steel strip S to be threaded, the width of the equipment connected to the threading plate table 100, or the like. Will be decided accordingly. Further, the length along the plate passing direction of the plate passing table 100 (the length in the x-axis direction in FIG. 2) can be arbitrarily determined according to the distance for transporting the steel strip S.

  A table roller 102, a wheel conveyor 104, and a ball transfer 107 are disposed on the upper surface 100 a of the passing plate table 100 as conveying members.

  The table roller 102 is a conveying member in which a substantially cylindrical roller is supported by a rotating shaft (not shown). The roller rotates around the rotating shaft, and the object on the table roller 102 is moved by the roller. It is transported in the direction of rotation. As shown in FIG. 2, the table roller 102 is spaced at an arbitrary interval so that the direction of the rotation axis of the table roller 102 (the y-axis direction in FIG. 2) is orthogonal to the plate passing direction of the steel strip S. A plurality of plates are provided on the upper surface 100a of the sheet passing table. The length of the table roller 102 (the length in the y-axis direction in FIG. 2) is provided so as to be substantially the same as the width of the through plate table 100, for example. The table roller 102 is rotated by a motor (not shown), transmits the force from the driving means to the steel strip S passing over the table roller 102, and plays a role of increasing the propulsive force of the steel strip S. The number of table rollers 102 provided on the upper surface 100a of the threading table can be determined according to the overall length of the threading table 100 or the like.

  In the wheel conveyor 104, a wheel 105 is pivotally supported by a rotation shaft 106, and the steel strip S on the wheel 105 can be moved in the direction in which the wheel 105 rotates. Therefore, the straightness of the steel strip S can be secured by using the wheel conveyor 104.

  In the ball transfer 107, a steel ball 108 is rotatably supported in a ball support hole 109. The direction in which the ball 108 rotates is not limited, and the ball 108 can freely rotate in various directions. Therefore, the steel strip S on the ball 108 can be moved in the direction in which the ball 108 rotates.

  The wheel conveyor 104 and the ball transfer 107 are not provided with driving means, and the wheel 105 and the ball 108 are rotated by the frictional force between the steel strip S and driven by the passing plate of the steel strip S. .

  As shown in FIG. 2, a plurality of the wheel conveyors 104 and the ball transfer 107 are provided in a portion where the table roller 102 is not provided on the upper surface 100a of the plate passing table. The number of the wheel conveyors 104 and the ball transfer 107 provided on the table upper surface 100a can be determined in consideration of, for example, the load applied to each of the conveying members.

  The wheel conveyor 104 has a rotating direction of the wheel 105 along the width direction (y-axis direction in FIG. 2) of the sheet-feeding table 100 along the sheet plate direction (the positive x-axis direction in FIG. 2). They are provided vertically and horizontally so as to be the same (x-axis direction in FIG. 2). That is, the wheel conveyor 104 is provided in a band shape in the region of the substantially central portion of the table upper surface 100a. The distance between adjacent wheel conveyors 104 is the thinnest steel strip S when the thinnest steel strip S is placed on the wheel conveyor 104 among the plurality of types of steel strips S to be passed through the plate passing table 100. It is preferable to make it so as not to be bent. In order to disperse the weight of the steel strip S well and prevent the steel strip S from being curved, the wheel conveyor 104 may be provided in a staggered arrangement as shown in FIG. By providing the wheel conveyors 104 in a staggered arrangement, the wheel conveyors 104 are arranged substantially evenly in a band-like region where the wheel conveyors 104 are arranged.

  The ball transfer 107 is provided vertically and horizontally along the plate passing direction of the steel strip S, on the outside in the width direction of the plate passing table 100, that is, outside the band-like region where the wheel conveyor 104 is provided. As in the case of the wheel conveyor 104, the interval between the adjacent ball transfers 107 is preferably set to an interval that does not cause the steel strip S to be curved when passing through the thinnest steel strip S. Further, the ball transfer 107 may be provided in a staggered arrangement as shown in FIG.

  The width of the wheel 105 used in the wheel conveyor 104 (the width in the y-axis direction in FIG. 2) and the size of the diameter of the ball 108 used in the ball transfer 107 are determined by the heaviest steel strip S through which the passing plate table 100 passes. Can be determined according to the weight.

  As described above, in the threading plate table 100 according to the present embodiment, the wheel conveyor 104 is arranged in a band shape in the region of the substantially central portion in the width direction of the threading plate table 100, and both sides of the region where the wheel conveyor 104 is provided. The ball transfer 107 is arranged in a band shape (that is, outside in the width direction).

In table top 100a, the width of the strip-shaped regions wheel conveyor 104 is provided with _{(a 1} in FIG. 2), the width of the strip-shaped region in which the ball transfer 107 is provided _{(a 2} in FIG. 2), for example in the following manner Can be determined.

The width a ₁ of the region in which the wheel conveyor 104 is provided is the width of the narrowest steel strip S among the plurality of types of steel strips S to be passed through the passing plate table 100 according to the present embodiment, or the passing plate table. It may be determined according to the width of the steel strip S meandering or sliding on 100 (hereinafter abbreviated as walk allowance). For example, if the width of the minimum width steel strip S to be passed is 700 mm and the size of the walk margin is estimated to be 150 mm, the width of the area a ₁ in which the wheel conveyor 104 is provided is equal to the width of the steel strip S. By subtracting the walk allowance from the minimum width, it can be about 400 mm. As described above, the width of the region where the wheel conveyor 104 is provided is set to be narrower than the width of the steel strip S.

  The width of the region where the wheel conveyor 104 and the ball transfer 107 are provided (the width represented by a in FIG. 2) is, for example, the steel strip S having the maximum width that is passed through the passing plate table 100 according to the present embodiment. It may be determined according to the width of the walk or the size of the walk allowance. When the maximum width of the steel strip S is 1200 mm, for example, and the size of the walk allowance is estimated to be 150 mm, for example, the width of the region where the wheel conveyor 104 and the ball transfer 107 are provided is as follows. The walk allowance can be added to the maximum width of to be about 1500 mm.

Width of the area where the ball transfer 107 is provided (the width represented by a ₂ in FIG. 2) is, for example, and the width of the region where the wheel conveyor 104 is provided (the width represented by a ₁ in FIG. 2), It can be determined according to the width of the region where the wheel conveyor 104 and the ball transfer 107 are provided (the width represented by a in FIG. 2).

  By setting the width of the region in which the wheel conveyor 104 and the ball transfer 107 are provided by the method as described above, the steel strip S passing over the sheet passing table 100 is transferred to both the wheel conveyor 104 and the ball transfer 107. It will always be supported.

  The passing plate table 100 in which the wheel conveyor 104 and the ball transfer 107 are provided in the arrangement as described above is improved in both of the disadvantages of the wheel conveyor 104 and the ball transfer 107. Further, the wheel conveyor 104, the ball transfer 107, It also has the advantages of.

  That is, the straight running stability defect, which is a disadvantage of the ball transfer 107, is improved by using the wheel conveyor 104 in the substantially central portion of the plate table 100 and using it together with the ball transfer 107, and the straight running stability is secured. Further, even when the steel strip S meanders, the wheel conveyor 104 is provided only at the substantially central portion of the table upper surface 100a in consideration of the walk allowance. The disadvantage of the wheel conveyor 104 that the steel strip S is bent or wrinkled in contact with the side surface 105 is improved.

  Next, the arrangement in the height direction of the wheel conveyor 104 and the ball transfer 107 provided on the sheet passing table 100 according to the present embodiment will be described with reference to FIG. 3 again.

  In the through-plate table 100 according to the present embodiment, the wheel conveyor 104 provided at the substantially central portion in the width direction of the table upper surface 100a and the ball transfer 107 provided at the outer edge portion in the width direction of the table upper surface 100a have their upper ends. Are provided so as to have a step. That is, the envelope surface 110 (envelope line parallel to the y-axis in FIG. 3) connecting the upper ends of the wheels 105 in the z-axis direction is connected to the envelope surface 111 ( In FIG. 3, they are arranged so as to be higher by h than an envelope parallel to the y-axis. By providing the wheel conveyor 104 and the ball transfer 107 in this manner, the wheel conveyor 104 protrudes above the ball transfer 107 (that is, in the positive z-axis direction in the figure).

  By providing the wheel conveyor 104 and the ball transfer 107 as described above, a larger load is applied to the wheel conveyor 104 having excellent load resistance than the ball transfer 107 having inferior load resistance. As a result, even when the heavy steel strip S is passed, the steel strip S can be passed without applying a large load to the ball transfer 107.

  The size of the step h can be determined according to, for example, the thickness and tensile strength of the steel strip S to be passed. The size of the step h is preferably 0.1 mm or more and 10 mm or less, for example. When the level difference h is less than 0.1 mm, it is difficult to obtain the effect of distributing a larger load to the wheel conveyor 104, and the load applied to the ball transfer 107 becomes large. In addition, if it exceeds 10 mm, the step between the wheel conveyor 104 and the ball transfer 107 becomes too large, and there is a possibility that the steel strip S is curved when the thin and soft steel strip S is passed through.

  Hereinafter, the operation of the passing plate table 100 will be described by taking as an example a case where the passing plate table 100 according to the present embodiment is provided in a galvanizing line.

  The steel strip S used for galvanization can be used in various thicknesses of about 0.2 mm to about 4 mm depending on the application of the galvanized steel strip S. For example, a steel strip S with a thickness of about 0.2 to 0.6 mm is used for tin roof, and a steel strip S with a thickness of about 0.6 mm to 1.8 mm is used for automobile manufacturing. For building materials, a steel strip S having a thickness of about 1.2 mm to 4 mm is used. Further, regarding the material strength of the steel strip S, it is widely used from a soft material to a hard material having a tensile strength of about 250 to 1500 MPa, for example.

  For example, when passing a thin and soft steel strip S used for a tin roof, in a conventional passing plate table, the meander of the steel strip S is passed when the tip of the steel strip S passes over the conveying member. There is a problem that the steel strip S bends or bends due to vertical movement or vertical movement. However, in the plate passing table 100 according to the present embodiment, in addition to the wheel conveyor 104 having a relatively high frictional resistance, the ball transfer 107 having a low frictional resistance effectively assists the plate passing of the steel strip S. The front end portion of S can move smoothly on the sheet passing table 100 without being caught by the table roll 102 or the wheel conveyor 104. As a result, problems such as bending and folding do not occur, and the buckling resistance of the steel strip S can be ensured. Further, the straightness of the steel strip S is secured by the wheel conveyor 104 that supports the substantially central portion of the steel strip S.

  In addition, when passing a thick and hard steel strip S used for building materials, in a conventional passing plate table, due to the vertical movement that occurs when the tip of the steel strip S passes over the conveying member, There was a problem that the conveying member was hit by the steel strip S and the life was shortened. However, in the sheet passing table 100 according to the present embodiment, the wheel conveyor 104 supports most of the load on the steel strip S, and an excessive load is not applied to the ball transfer 107 having a low load resistance. As a result, since the ball 108 of the ball transfer 107 can smoothly rotate despite passing the thick and hard steel strip S, the steel strip S can smoothly move on the passing plate table 100. And buckling resistance is guaranteed. Further, even when vertical movement occurs when the tip of the steel strip S passes, the load-bearing wheel conveyor 104 is provided so as to protrude upward from the ball transfer 107. The ball transfer 107 with low load resistance is less hit. As a result, the conventional problem that the life of the conveying member is shortened can be solved.

  Moreover, even when any of the various steel strips S as described above is passed, the wheel conveyor 104 supports the substantially central portion of the steel strip S, and the outer edge of the steel strip S (the width direction of the steel strip S). Since the ball transfer 107 supports the outer side of the steel strip S, even if the tip of the steel strip S slides or meanders, the side end of the steel strip S is caught on the wheel 105, causing a curve or a wrinkle. No obi S.

  As described above, the threading plate table 100 according to the present embodiment is excellent in load resistance, the tip of the steel strip and the threading property of the entire steel strip, from a soft and thin steel strip to a hard and thick steel strip. Up to now, it is possible to pass steel strips having various characteristics without causing deterioration in the quality of the steel strip.

  When the arrangement of the wheel conveyor 104 and the ball transfer 107 is reversed, that is, the ball transfer 107 is provided at a substantially central portion in the lateral direction of the passing plate table 100, and the wheel is provided at both ends of the portion where the ball transfer 107 is provided. When the conveyor 104 is provided, when the steel strip S meanders, the side end of the steel strip S may contact the side surface of the wheel 105, and the steel strip S may be bent or wrinkled. is there. Furthermore, since the ball transfer 107 is located at the substantially central portion of the steel strip S, a large load is applied to the ball transfer 107. As a result, when the thick and hard steel strip S is passed through, the life of the ball transfer 107 is shortened due to the vertical movement when the tip of the steel strip S passes.

  Hereinafter, a threading plate table 100 according to an embodiment of the present invention and a threading plate table according to a comparative example will be described with reference to Examples and Comparative Examples. In the following examples and comparative examples, the steel strip S used for the galvanized steel sheet was passed.

  As the galvanized steel sheet, a steel sheet having a thickness of about 0.2 to about 4 mm and a tensile strength of about 250 to 1500 MPa is used. In the following examples and comparative examples, from the above range, a 0.3 mm-thick steel strip used for a tin roof, a 0.8 mm-thick steel strip used for automobile manufacture, and a building material are used. Each 2 mm steel strip was passed through.

Example 1
Using a sheet passing table 100 according to the present embodiment, a 0.3 mm thick steel strip used for a tin roof was passed. In the passing plate table 100 used in this example, the entire width of the passing plate table 100 was 1500 mm, and the width a _{1 of} the region in which the wheel conveyor 104 was disposed was 400 mm. The height difference h between the envelope surface 110 formed by the wheel conveyor 104 and the envelope surface 111 formed by the ball transfer 107 is 3 mm.

(Example 2)
The plate was passed in the same manner as in Example 1 except that a 0.8 mm-thick steel strip used for automobile production was used.

(Example 3)
Extrusion was performed in the same manner as in Example 1 except that a 3.2 mm-thick steel strip used as a building material was used.

(Comparative Example 1)
The passing plate was carried out in the same manner as in Example 1 except that a passing plate table having a table roll provided on the entire upper surface of the passing plate table was used.

(Comparative Example 2)
The passing plate was carried out in the same manner as in Example 1 except that a passing plate table having a wheel conveyor provided on the entire upper surface of the passing plate table was used.

(Comparative Example 3)
The passing plate was carried out in the same manner as in Example 3 except that a passing plate table having a ball transfer provided on the entire upper surface of the passing plate table was used.

  The results of Examples 1 to 3 and Comparative Examples 1 to 3 are shown in Table 1 below.

  In the column of the sheet passing results in Table 1 above, “good” indicates that the steel strip could be smoothly passed without bending or wrinkling. “Defect 1” indicates that the tip of the steel strip S has wavy, and “Defect 2” indicates that wrinkles at the end of the steel strip S cause wrinkles on the side end of the steel strip S. Indicates that it has entered. Further, “defect 3” represents that the life of the ball transfer as a conveying member was shortened due to the vertical movement of the steel strip S, and had to be replaced in one week.

  As is clear from Table 1, the threading plate table 100 according to the present embodiment has a steel strip having a wide plate thickness of 0.3 mm to 3.2 mm and a wide tensile strength of 300 to 1500 MPa. In this way, it was possible to pass the steel plate while maintaining the quality of the steel strip without making any wrinkles or bends. In addition, when the steel strip for building materials was passed through, the life of the conveying member was not shortened due to the vertical movement of the steel strip tip.

  As described above, the through-plate table 100 according to the present embodiment is responsible for the load resistance and the straight running performance by the wheel conveyor 104, and is designed to prevent buckling and insertion when the tip of the steel strip S meanders. By having 107, the steel strip S having a wide thickness range and material strength can be stably passed. Moreover, in order to disperse | distribute the load of the steel strip S effectively, it is possible to improve the durability of the threading plate table 100.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to this example. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  For example, in the above embodiment, only the case where the metal strip is a steel strip has been described, but the metal strip to be conveyed may be a metal other than steel such as Al or Cu.

It is a schematic diagram for demonstrating the plate passing equipment of the steel strip provided with the plate passing table which concerns on the 1st Embodiment of this invention. It is a top view of the threading plate table concerning a 1st embodiment of the present invention. It is sectional drawing which cut | disconnected the threading board table which concerns on the 1st Embodiment of this invention by the AA cutting line of FIG.

Explanation of symbols

10A, 10B Payoff reel 20 Pinch roll 30 Leveler roll 40 Double cut shear 50 Upper plate plate equipment 60 Lower plate machine 100 Plate plate table 100a Table top surface 102 Table roll 104 Wheel conveyor 105 Wheel 106 Rotating shaft 107 Ball transfer 108 Ball 109 Ball support Hole 110 Envelope surface connecting the upper end of the wheel conveyor 111 Envelope surface connecting the upper end of the ball transfer S Steel strip

Claims (6)

A through-plate table through which the introduced metal strip passes with the end at the top:
A plurality of wheel conveyors are disposed on the top surface of the sheet passing table in the width direction of the sheet passing table, and a plurality of ball transfers are disposed on the outer side in the width direction of the sheet passing table. A through-plate table. The passing plate table according to claim 1, wherein a table roll having driving means is disposed on the upper surface of the passing plate table with an interval in the passing plate direction.   3. The threading table according to claim 1, wherein an envelope surface connecting the upper ends of the plurality of wheel conveyors is arranged higher than an envelope surface connecting the upper ends of the plurality of ball transfers. 4.   The height difference between an envelope surface connecting the upper ends of the plurality of wheel conveyors and an envelope surface connecting the upper ends of the plurality of ball transfers is 0.1 to 10 mm. Through plate table as described in.   5. The threading table according to claim 1, wherein the plurality of wheel conveyors and / or the plurality of ball transfers are arranged in a staggered manner in a region where each of the plurality of wheel conveyors and / or the plurality of ball transfers is arranged. The width of the area | region in which these wheel conveyors are arrange | positioned is smaller than the width | variety of the metal strip on a design, The threading board table in any one of Claims 1-5 characterized by the above-mentioned.

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