JP7279683B2 - Sliding liner and equipment using it - Google Patents

Description

TECHNICAL FIELD The present invention relates to a sliding liner attached to a portion of an elevating member that elevates and lowers along a frame that slides against the frame, and equipment using the same.

The steel plate cutting equipment inserts the continuously delivered steel plate between the upper blade and the lower blade, for example, by raising a lower blade holding member that holds the lower blade along the frame, thereby cutting the steel plate upward. It is sheared by a blade and a lower blade (for example, Patent Document 1).

In such cutting equipment, a sliding liner made of a wear-resistant material is generally provided at a sliding portion of the lower blade holding member, which is an elevating member, with the frame.

JP-A-52-148894

Since the sliding liner is worn by cutting equipment, it needs to be replaced when it wears a certain amount and reaches the end of its life. It is fixed with bolts, and since the mounting part of the bolt is hidden in the frame, it is necessary to remove the lower blade holding member and the driving part to replace the sliding liner, which is an extremely large-scale work. For this reason, from the viewpoint of maintaining productivity, the sliding liner is usually replaced at the same time as the equipment is repaired periodically at a predetermined cycle.

However, there are cases where the wear of the sliding liner progresses quickly.In that case, the increased load on the bolt due to the wear of the sliding liner before regular repairs of the equipment may cause bolt breakage and the sliding liner to come off. etc., and there is a risk that the equipment cannot be used for a long time.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a sliding liner that does not require bolting from the side and is easy to attach and detach, and equipment using the same.

In order to solve the above problems, the present invention provides the following [1] to [10].

[1] A sliding liner attached to a portion of an elevating member that elevates and lowers along a frame that slides with the frame,
a main body provided to cover a side surface of a portion of the elevating member corresponding to the frame;
a locking portion provided at an end portion of the main body portion and locked to an upper surface of a portion of the elevating member corresponding to the frame;
A sliding liner comprising:

[2] The sliding liner according to [1], wherein the body portion and the engaging portion are L-shaped.

[3] The sliding liner according to [1] or [2], wherein the engaging portion is bolted to the upper surface of the elevating member.

[4] The sliding liner according to any one of [1] to [3], wherein the main body is inserted between the elevating member and the frame.

[5] a frame;
a lifting member that moves up and down along the frame;
a driving unit that drives the lifting member up and down;
a sliding liner attached to a sliding portion with the frame;
has
The sliding liner is
a main body provided to cover a side surface of a portion of the elevating member corresponding to the frame;
a locking portion provided at an end portion of the main body portion and locked to an upper surface of a portion of the elevating member corresponding to the frame;
Equipment using a sliding liner, characterized by having

[6] Equipment using a sliding liner according to [5], wherein the main body portion and the engaging portion are L-shaped.

[7] Equipment using a sliding liner according to [5] or [6], wherein the locking portion is bolted to the upper surface of the elevating member.

[8] The sliding liner according to any one of [5] to [7], wherein the sliding liner is attached by inserting the body portion between the elevating member and the frame. Equipment using a moving liner.

[9] The equipment is cutting equipment for cutting a metal plate with an upper blade and a lower blade, wherein the upper blade is held by an upper blade holding member, the lower blade is held by a lower blade holding member, and the elevating member is at least one of the upper blade holding member and the lower blade holding member.

[10] The elevating member is the lower blade holding member, and the frame has an adjusting frame for horizontally moving the lower blade holding member to adjust the gap between the upper blade and the lower blade. Equipment using the sliding liner according to [9].

According to the present invention, the sliding liner is provided in the body portion provided so as to cover the portion corresponding to the frame of the elevating member, and in the locking portion provided at the end of the body portion and engaged with the upper surface of the elevating member. Since it has a part, it is not necessary to fasten the sliding liner with a bolt from the side, and it is easy to attach and detach.

1 is a side view showing a main part of a skin pass facility equipped with a cutting facility using a sliding liner according to an embodiment of the present invention; FIG. FIG. 2 is a front view showing the cutting equipment of FIG. 1; FIG. 2 is a perspective view showing a main part of the cutting equipment of FIG. 1; FIG. 4 is a horizontal cross-sectional view showing a lower blade holder and a frame to which a sliding liner is attached; FIG. 4 is a vertical cross-sectional view showing a lower blade holder and a frame to which a sliding liner is attached; FIG. 4 is a cross-sectional view showing another embodiment of a sliding liner; FIG. 3 is a cross-sectional view showing a conventional sliding liner;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a side view showing the main part of skin pass equipment equipped with cutting equipment using a sliding liner according to one embodiment of the present invention, FIG. 2 is a front view showing the cutting equipment of FIG. 1, and FIG. 3 is FIG. Fig. 4 is a horizontal sectional view showing the lower blade holder and the frame to which the sliding liner is attached, Fig. 5 is a lower blade holder to which the sliding liner is attached and the frame 1 is a vertical cross-sectional view of FIG.

The skin pass facility has a rolling mill 100, a cutting facility 200, an entry-side facility and an exit-side facility (none of which are shown), and the steel sheet 1 fed out from the hot-rolled coil attached to the entry-side facility is The sheet is passed through the rolling mill 100, subjected to shape correction, and wound up at the delivery side equipment. Also, the cutting equipment 200 is provided adjacent to the delivery side portion of the rolling mill 100, and cuts the steel plate 1 at the leading end or trailing end of the hot-rolled coil to a specified length.

The cutting equipment 200 includes an upper blade 12, a lower blade 14, an upper blade holding member 16 holding the upper blade 12, a lower blade holding member 18 holding the lower blade 14, a frame 20, and a lower blade holding member 18. and a drive unit 22 that drives the .

Both ends of the upper blade holding member 16 are fixed to the frame 20 , and the lower blade holding member 18 can move up and down along the frame 20 .

The drive unit 22 has a hydraulic cylinder 24 and a link mechanism 26 , and advances and retracts a piston 24 a of the hydraulic cylinder 24 to move the lower blade holding member 18 up and down via the link mechanism 26 .

The steel plate 1 is passed between the upper blade 12 and the lower blade 14, and the lower blade holding member 18 is lifted together with the lower blade 14 by the drive unit 22, so that the steel plate 1 is sandwiched between the upper blade 12 and the lower blade 14. shear. Specifically, since the blade body 12a exists at the lower end of the upper blade 12 and the blade body 14a exists at the upper end of the lower blade 14, when the lower blade 14 is raised, the blade bodies 12a and 14a Steel plate 1 is sheared.

The end of the lower blade holding member 18 is inserted into the frame 20, and as shown in FIG. A sliding liner 30 that slides on the frame 20 is attached to the insertion portion 18a. In other words, the sliding liner 30 is attached to the insertion portion 18 a of the lower blade holding member 18 corresponding to the frame 20 .

The sliding liner 30 has a body portion 31 that covers the side surface of the insertion portion 18a of the lower blade holding member 18, which is a lifting member, and a locking portion 32 that is locked to the upper surface of the insertion portion 18a. 32 is perpendicular to the main body 31, and the whole is L-shaped. The sliding liner 30 is supplied with grease from a grease supply line (not shown).

As shown in FIGS. 4 and 5, the frame 20 has a pair of adjustment frames 20a for adjusting the gap between the upper blade 12 and the lower blade . The pair of adjustment frames 20a can be horizontally adjusted with bolts 40, which pushes and pulls the lower blade holding member 18 (insertion portion 18a) to provide a space between the upper blade 12 and the lower blade 14. gap is adjusted. When the lower blade holding member 18 is moved up and down, the sliding liner 30 comes into contact with the adjusting frame 20a, and sliding occurs between the sliding liner 30 and the adjusting frame 20a.

The locking portion 32 of the sliding liner 30 is locked to the upper surface of the insertion portion 18a of the lower blade holding member 18 so that the sliding liner 30 is attached to the insertion portion 18a by its own weight. Alternatively, the sliding liner 30 may be fixed to the lower blade holding member 18 by fixing the engaging portion 31 to the upper surface of the insertion portion 18a with a bolt 51. As shown in FIG. Thereby, it is possible to prevent the lower blade holding member 18 from floating when it descends.

In the skin pass facility configured as described above, the steel sheet 1 drawn out from the hot-rolled coil attached to the entry-side facility is passed through the rolling mill 100, subjected to shape correction, and wound up by the delivery-side facility. . At this time, the cutting equipment 200 cuts the steel plate 1 at the front end or tail end of the hot-rolled coil to a specified length.

In the cutting equipment 200, the position of the lower blade 14 is adjusted by moving the lower blade holding member 18 by the adjustment frame 20a, and the gap between the upper blade 12 and the lower blade 14 is adjusted. Then, the actual cutting of the steel plate 1 is performed by raising the lower blade holding member 18 by the driving portion 22 and shearing by the upper blade 12 and the lower blade 14 .

As the lower blade holding member 18 moves up and down, the sliding liner 30 slides against the adjustment frame 20 a of the frame 20 . For this reason, the sliding liner 30 wears out, and when the amount of wear reaches a certain amount, the sliding liner 30 needs to be replaced.

As shown in FIG. 7, the conventional sliding liner 30' is fixed to the side surface of the insertion portion 18a of the lower blade holding member 18 with a plurality of bolts 61. As shown in FIG. Therefore, since the mounting portion of the bolt 61 is hidden by the frame, it is necessary to remove the lower blade holding member 18 and the driving portion 22 to replace the sliding liner 30', which is an extremely large-scale operation and maintains productivity. From this point of view, the replacement of the sliding liner 30' had to be performed together with the periodic repair of the equipment.

However, if the wear of the sliding liner progresses before regular equipment repairs, the load on the bolt increases, causing bolt breakage, sliding liner falling off, etc., and the equipment has to be stopped for a long time. put away.

In addition, the skin pass equipment is a line for black scale coils before pickling, and the scale adhering to the coil surface tends to float in the air, and the scale is trapped between the sliding liner and the lower blade holding member. By entering, the wear of the sliding liner is likely to progress, and there is a possibility that the operation will be locked by being caught by a large foreign matter.

Therefore, in the present embodiment, the sliding liner 30 has a body portion 31 that covers the side surface of the insertion portion 18a of the lower blade holding member 18, and an engaging portion 32 that is engaged with the upper surface of the insertion portion 18a. The whole is L-shaped.

As a result, the engaging portion 32 has a function of preventing the sliding liner 30 from falling off, and the insertion portion 18a of the lower blade holding member 18 and the adjustment frame 20a of the frame 20 do not need to be fixed with bolts from the side surface. It can be attached by inserting the body part 31 between them. Therefore, unlike the conventional art, troubles such as bolt breakage and sliding liner falling off do not occur, and the main body can be easily viewed from above without the extremely large-scale work of removing the lower blade holding member 18 and the driving portion 22. It can be easily attached and detached by inserting and pulling out the portion 31 . In fact, as a result of comparing the replacement time between the sliding liner 30 of the present embodiment and the conventional sliding liner 30', it was found that the sliding liner 30 of the embodiment required 1/4 of the conventional sliding liner 30'. It was confirmed that it can be shortened.

By simplifying the replacement work of the sliding liner in this way, it is possible to easily remove the sliding liner other than when repairing the equipment, and it is possible to manage the wear state of the sliding liner. Become. For this reason, when the operating environment changes, for example, when there is an increase in production volume or an increase in the proportion of materials with a high cutting load, it is possible to flexibly respond according to the state of wear of the sliding liner.

In addition, since the locking portion 32 covers the gap between the insertion portion 18a and the main body portion 31, scale is prevented from entering this gap, and the life of the sliding liner is reduced due to wear and large foreign matter is prevented from being caught. It is possible to prevent the operation from being locked due to

Although the embodiment of the present invention has been described above, it should be considered that the above embodiment is merely an example and is not restrictive. The above-described embodiments may be omitted, replaced, or modified in various ways without departing from the gist of the present invention.

For example, in the above-described embodiment, the sliding liner has an engaging portion perpendicular to the main body and has an L-shape as a whole, but the present invention is not limited to this.

Further, in the above embodiment, the lower blade holding member is moved up and down, but the upper blade holding member may be moved up and down, or both of them may be moved up and down.

Furthermore, in the above embodiment, the sliding liner applied to the steel plate cutting equipment installed in the skin pass equipment for the hot-rolled steel plate before pickling is shown, but it is not limited to this, and the steel plate after pickling. It may be applied to cutting equipment for cutting cold-rolled steel sheets, and may be applied to cutting equipment for cutting metal sheets other than steel sheets. Moreover, it is applicable not only to the cutting equipment but also to any equipment having a member that moves up and down along the frame.

Reference Signs List 1 steel plate 12 upper blade 14 lower blade 16 upper blade holding member 18 lower blade holding member 18a insertion portion 20 frame 20a adjustment frame 22 drive portion 30 sliding liner 31 body portion 32 locking portion 100 rolling mill 200 cutting equipment

Claims (8)

A sliding liner attached to a sliding portion with the frame of a lifting member that moves up and down along the frame,
a main body provided to cover a side surface of a portion of the elevating member corresponding to the frame;
a locking portion provided at an end portion of the main body portion and locked to an upper surface of a portion of the elevating member corresponding to the frame;
A sliding liner characterized by comprising an L-shape as a whole . 2. The sliding liner according to claim 1 , wherein the engaging portion is bolted to the upper surface of the elevating member. It is characterized by being L-shaped as a whole so that it can be installed by inserting it between the lifting member and the frame from the end opposite to the side on which the locking portion of the main body is provided. 3. The sliding liner according to claim 1 or 2 . a frame;
a lifting member that moves up and down along the frame;
a driving unit that drives the lifting member up and down;
a sliding liner attached to a sliding portion with the frame;
has
The sliding liner is
a main body provided to cover a side surface of a portion of the elevating member corresponding to the frame;
a locking portion provided at an end portion of the main body portion and locked to an upper surface of a portion of the elevating member corresponding to the frame;
Equipment using a sliding liner , characterized in that it consists of and is L-shaped as a whole . 5. Equipment using a sliding liner according to claim 4 , wherein said engaging portion is bolted to the upper surface of said elevating member. The sliding liner is L-shaped as a whole so that it can be inserted between the lifting member and the frame from the end of the main body portion opposite to the side on which the engaging portion is provided. Equipment using the sliding liner according to claim 4 or 5, characterized in that: The equipment is a cutting equipment that cuts a metal plate with an upper blade and a lower blade, the upper blade is held by an upper blade holding member, the lower blade is held by a lower blade holding member, and the elevating member is the 7. Equipment using a sliding liner according to any one of claims 4 to 6 , wherein the equipment is at least one of an upper blade holding member and the lower blade holding member. 8. The elevating member is the lower blade holding member, and the frame has an adjusting frame for horizontally moving the lower blade holding member to adjust the gap between the upper blade and the lower blade. Equipment using the sliding liner described in .

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