JP3854318B2 - Roll changer - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a roll changer in a furnace in which rolls such as a heat treatment furnace and a heating furnace are arranged in parallel.
[0002]
[Prior art]
Conventionally, as a roll exchanging technique, for example, there is one disclosed in Japanese Utility Model Publication No. 63-158873. This device uses a guide block whose height position can be changed on a base that can be moved and controlled in a direction perpendicular to the axial direction of the furnace roll on the floor outside one of the side walls of the steel plate heat treatment furnace. Thus, a pedestal that can be moved and controlled in a direction orthogonal to the moving direction of the base is provided, and a holding block having a furnace roll clamp bearing is provided on the pedestal.
With such a configuration, each furnace roll in the furnace can be mechanically extracted outside the furnace or inserted into the furnace.
[0003]
[Problems to be solved by the invention]
In the roll changing device described in the Japanese Utility Model Laid-Open No. 63-158873, a crane is used as a method for detaching the old and new rolls from the old roll after unloading or before assembling the new roll. A method is conceivable in which the cart is self-propelled while holding the roll to a predetermined roll place.
[0004]
In general, in steel plate heat treatment furnaces, roll replacement and other work are performed at the same time during periodic repairs, so in the former case, the crane is occupied when the roll is replaced, and the crane is used for other work. There is a problem that other work is hindered or a long time is required for regular repair.
Furthermore, the work of attaching and detaching the roll using the crane includes a fine operation at the hanging position from the unstable crane or the counterweight adjustment of the porter bar, and is an operation requiring skill.
[0005]
In the latter case, it is necessary to reciprocate between the roll support position and a predetermined roll place once for each roll exchange. Therefore, in a facility having a large number of rolls such as a steel plate heat treatment furnace and a long overall length, the work time becomes long, and it is difficult to replace all the rolls within a limited period of regular repair.
[0006]
The present invention has been made in order to solve the above-described problems of the prior art, and its purpose is to use a crane every time one roll is replaced, or to maintain a predetermined roll while holding the roll once. An object of the present invention is to provide an apparatus capable of exchanging rolls without causing the carriage to self-propel to the roll storage.
[0007]
[Means for Solving the Problems]
The present invention is summarized as follows in order to solve the above problems.
(1) In the roll exchanging apparatus in which the rolls arranged in parallel at regular intervals in the furnace are exchanged by the roll extracting (entering) apparatus (A) provided on the carriage traveling along the furnace side wall, The roll extraction (on) device (A) has a function of turning in the horizontal direction, a function of moving back and forth in the same direction as the roll axis in a state of turning in the horizontal direction, a function of moving up and down in the vertical direction, and a roll gripping unit. A function of moving forward and backward in the roll axis direction is provided, and a roll storage space (B) is formed in the swivel range of the roll gripping portion on the carriage , and a plurality of fixed spaces are fixed on the roll storage space (B). The function of supporting the rolls with a gap in the roll extraction (incoming) direction was provided .
(2) On the carriage, a pedestal is provided so as to be able to advance and retreat in the same direction as the roll axis, and an upright frame is provided on the pedestal so as to be able to turn horizontally through a rotating table. A shaft having a roll gripping portion at the tip is provided so as to be movable up and down, and the shaft is provided on the shaft support so as to be able to advance and retreat in the axial direction of the roll to constitute a roll extraction (input) device (A) , A roll holder that supports a plurality of rolls with a gap in the roll extraction (incoming) direction is fixed on the roll storage space (B) .
[0008]
[Action]
The axial center line of the roll extracted by the movement of the carriage in the steel plate conveyance direction and the movement of the shaft having the roll gripping portion at the tip in the vertical direction is matched with the axial center line of the clamp bearing of the roll gripping portion.
[0009]
The pedestal is moved in the axial direction of the in-furnace roll, and the shaft is also moved in the axial direction of the in-furnace roll so that one end of the shaft part of the roll is held in the open clamp bearing.
[0010]
The guide block is raised so that the roll can be extracted from the roll support opening in the side wall of the furnace, and then the pedestal is retracted in the direction opposite to the side wall of the furnace, and the roll is pulled out of the furnace.
[0011]
After removing the roll, the roll extracted outside the furnace by horizontally turning the upright frame via the turntable is provided on the carriage and within the turning range of the roll gripping portion of the roll extraction (on) device (A). Place on a roll table on the formed roll storage space. At that time, after turning the roll, the height of the guide block is lowered, the roll is placed on the roll holder, the gripping tool is released, and one end of the shaft portion of the roll is opened. Thereafter, the length of the shaft is changed, and the shaft is moved from the gripping tool to the frame in a direction in which the length of the shaft is shortened, whereby one end of the shaft portion of the roll is extracted from the gripping tool.
[0012]
Next, a new roll on the roll table is inserted into the furnace by an operation reverse to the operation at the time of extracting the old roll, and is supported on the support openings of the rolls on both side walls of the furnace.
[0013]
Thus, a roll extraction (on) device provided on the carriage and having a function of moving back and forth in the same direction as the roll axis direction, a function of moving up and down in the vertical direction, and a function of further turning in the horizontal direction ( The roll is extracted (entered) according to A), and the above operation is repeated in the roll accommodating space provided on the same cart and within the turning range of the roll gripping portion of the roll changer. Replace multiple rolls continuously on time.
[0014]
【Example】
Hereinafter, the present invention will be described with reference to the drawings illustrating embodiments thereof. FIG. 1 is a front view of the roll changer, and FIG. 2 is a plan view of the roll changer. A carriage 6 as a base that moves on the rail 5 along the side wall 3 of the steel plate transport equipment 1 is disposed on the floor outside the right side wall 3 of the steel plate transport equipment 1 in which the rolls 4 are arranged in parallel at predetermined intervals. Is installed.
[0015]
On this carriage 6 is provided a roll storage space (B) in which a roll extraction (input) device (A) for extracting (entering) the roll 4 and a roll stand 8 for temporarily storing the roll 4 are installed. Yes. The roll extraction (input) device (A) moves in the axial direction of the roll 4 by two guide rails 7 formed on the carriage 6 in the axial direction of the roll 4.
[0016]
Guide blocks 9 formed on the lower surface of the pedestal 10 are slidably installed on the guide rail 7, and the pedestal 10 moves in the axial direction of the roll 4. Forms a rack (not shown) on the inner surface of one of the guide rails 7 on the carriage 6, and a gear mounted on the rack is rotated by a reversible motor 12 fixed to the pedestal 10. 10 is moved back and forth in the axial direction of the roll.
[0017]
On the upper surface of the pedestal 10, a rotating table 11 is arranged so that the rotation axis is in the vertical direction, and a gear 13 formed on the side surface of the rotating table 11 and a gear 14 opposed to the gear 13 are arranged on the same table. The revolving motor 11 is rotated by the reversible motor 15 on the 10 to turn the turntable 11 in the horizontal direction.
[0018]
A frame 16 is suspended from the turntable 11, and a guide block 19 formed on the side surface of the shaft support 18 slides in the vertical direction on the two guide rails 17 formed on the side surface of the frame 16. The shaft support 18 is disposed so as to be freely movable, and is disposed so as to be vertically movable.
[0019]
The shaft support 18 is lifted and lowered by connecting a screw rod 21 to a reversible motor 20 fixed to the upper end of the frame 16 so as to be rotatable between guide rails on the side of the frame 16. A nut 22 fixed between the side guide blocks 19 and the screw rod 21 are combined and moved up and down by a reversible motor 20.
[0020]
The shaft 23 is installed via the shaft support 18 so as to be slidable in the axial direction of the roll 4. The shaft 23 is formed on a rack 24 formed on the upper surface of the shaft 23, and the rack 24. It is possible to advance and retreat by a gear 25 that is opposed to the shaft and a reversible motor 26 that is fixed on a shaft support 18 that rotates the gear 25.
A clamp bearing 27 is joined to the tip of the shaft 23 and is opened and closed by a fluid pressure cylinder 28.
[0021]
As described above, the pedestal 10 is provided so as to be able to advance and retreat in the same direction as the axis of the roll 4, the upright frame 16 is provided on the pedestal 10 via the rotary table 11 so as to be horizontally turnable, and the shaft is mounted on the upright frame 16. The roll 4 extracted by the roll extraction (input) device (A) on the carriage 6 which is provided with a shaft 23 having a roll gripping portion at the tip portion through the support 18 so as to be movable up and down, and the roll 4 to be drawn out, A plurality are temporarily stored in a roll holder 8 on a roll accommodation space (B) provided on the cart 6.
[0022]
After exchanging a plurality of rolls, the carriage 6 runs on the rail 5 to a predetermined roll storage place. It should be noted that the present invention is not limited to the above-described embodiments, and it is needless to say that various modifications can be made without departing from the gist of the present invention.
[0023]
【The invention's effect】
As described above, according to the roll exchanging apparatus of the present invention, the roll storage space (B) is provided at the same time as the roll extraction (input) apparatus (A) on the carriage, so that a plurality of rolls are temporarily stored on the carriage. Then, transport multiple pieces to the roll storage. Therefore, the crane can be used as a method for detaching the old and new rolls from the roll extraction (on) device (A) after unloading the old rolls and before the new rolls are installed. It becomes possible to exchange rolls without going on its own. Therefore, since it is not necessary to occupy the crane during regular repairs as in the prior art, the crane can be used for other operations.
[0024]
Also, every time one roll is replaced as in the conventional case, it is not necessary to reciprocate between the roll support position and a predetermined roll place by a crane or a carriage, so that the work time is shortened and the work efficiency is increased. To do.
Furthermore, compared to the operation using a crane, there is less shaking during the movement of the roll and the grip shaft grip operation, and there is no need to adjust the balance after gripping the roll. It is possible to easily desorb and remove.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of the present invention.
FIG. 2 is a plan view showing an embodiment of the present invention.
[Explanation of symbols]
A Roll extraction (input) device B Roll accommodation space 1 Steel plate conveying facility 2 Roll support opening 3 Side wall 4 Roll 5 Rail 6 Carriage 7 Guide rail 8 Roll placing base 9 Guide block 10 Pedestal 11 Revolving base 12 Reversible motor 13 Tooth profile 14 Gear 15 Reversible motor 16 Frame 17 Guide rail 18 Shaft support 19 Guide block 20 Reversible motor 21 Screw rod 22 Nut 23 Shaft 24 Rack 25 Gear 26 Reversible motor 27 Clamp bearing 28 Fluid pressure cylinder

Claims (2)

In the roll exchanging apparatus in which rolls arranged in parallel at regular intervals in the furnace are exchanged by a roll extracting (entering) apparatus (A) provided on a carriage that runs along the furnace side wall, the roll extracting ( ON) The function of turning the device (A) horizontally, the function of moving back and forth in the same direction as the roll axis in the state of turning horizontally , the function of moving up and down in the vertical direction, and the roll gripping part as the roll axis A roll accommodating space (B) is formed in the turning range of the roll gripping portion , and a plurality of rolls fixed on the roll accommodating space (B) are provided. A roll changer characterized by having a function of supporting with a gap in the roll extraction (incoming) direction . On the carriage, a pedestal is provided so as to be able to advance and retreat in the same direction as the roll axis, and an upright frame is provided on the pedestal so as to be able to turn horizontally through a rotating table. provided vertically movably the shaft having a roll gripping portion, to and the shaft support, the shaft is provided retractably in the axial direction of the roll, constitute the roll extraction (input) device (a), the roll 2. A roll exchanging apparatus according to claim 1, wherein a roll holder for supporting a plurality of rolls with a gap in the roll extraction (incoming) direction is fixed on the storage space (B) .

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