JP2004237329A - Chock attaching/detaching device and method for roll - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small chock attaching/detaching device for a roll which is excellent in the efficiency of work and with which the alignment of the shaft center is facilitated when the chock is attached/detached to/from the roll, the attaching/detaching force is reduced and the chock and the shaft part of the roll are not damaged. <P>SOLUTION: This device has: traveling trucks 10 which are arranged on the side face of a stand 2 and movable in the Y-direction; Y-direction driving means 9 for moving the traveling trucks 10 in the Y-direction; upper and lower chock trucks 7, 8 which are arranged on the upper surface of the traveling trucks 10 and movable in the X-direction; an X-direction driving means 11 for moving the upper and lower trucks 7, 8 in the X-direction; and upper and lower hydraulic unit driving means 31, 35 for respectively elevating and lowering upper and lower chock holding means 26, 37. The upper and the lower chock trucks 7, 8 are respectively provided with air-bearing driving means 61, 62 for the upper and the lower chocks. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a roll chock attachment / detachment device that attaches / detaches a bearing unit (hereinafter referred to as a chock) supporting a shaft portion such as a rolling roll to / from a shaft portion of a rolling roll or the like (hereinafter referred to as a roll).
More specifically, place the roll horizontally on the stand, mount the chock on the lift truck, etc., align the roll and chock shaft core, and move the chock in the axial direction of the roll between the roll shaft part and the chock. It is related with the chock attachment / detachment apparatus for rolls which attaches / detaches a chock.
[0002]
[Prior art]
Since the chock that supports the shaft part of the roll is large and heavy, the work of attaching and detaching the chock between the roll shaft part and the chock is difficult to align the axis and is dangerous when moving and the work efficiency is low. In order to solve this problem, a jack-attached chock attaching / detaching device has been proposed (see Patent Document 1).
Conventionally, the attachment and detachment of the chock has been performed for each roll. However, in recent years, an apparatus for attaching and removing the chock at the same time as a pair of upper and lower rolls has been proposed since two rolls are placed up and down on a stand. (See Patent Document 2).
However, in the conventional attaching / detaching device, when attaching and removing the chock at the same time, it is necessary to attach and detach the upper and lower intervals of the rolls on the stand and the upper and lower intervals of the chocks on the chock holding base, In reality, it is very difficult to make the vertical distance the same because the accuracy is determined by a combination of the manufacturing accuracy of the stand, the manufacturing accuracy of the roll, and the manufacturing accuracy of the chock holding base.
In other words, these precisions must be within 1/2 of the difference between the outer diameter of the upper and lower roll shaft parts and the inner diameter of the chock bearing part. If this is exceeded, the chocks and roll shafts are forced to force the chocks into the roll shaft parts. There was a problem of damaging the part. In addition, since a large pushing force is required, there is a problem that the apparatus becomes large.
[Patent Document 1]
Japanese Patent Laid-Open No. 5-23721.
[Patent Document 2]
JP-A-6-304617.
[0003]
[Problems to be solved by the invention]
In view of the above problems, the present invention is easy to align the shaft when inserting a chock into the roll shaft, has a small chock attachment / detachment force, does not damage the bearing and the roll shaft, is small, and It is an object of the present invention to provide an automated roll chock attachment / detachment device with good work efficiency.
[0004]
[Means for Solving the Problems]
The roll chock attachment / detachment device of the present invention is a roll chock attachment / detachment device for attaching / detaching a chock to a roll shaft portion of a roll placed on a stand, and a traveling carriage disposed on a side surface of the stand and movable in the Y direction; Y direction driving means for moving the traveling carriage in the Y direction, an upper chock carriage and a lower chock carriage arranged on the upper surface of the traveling carriage and movable in the X direction, and the upper and lower chock carriages in the X direction. X direction driving means, upper hydraulic unit driving means for raising and lowering the upper chock holding means, and lower hydraulic unit driving means for raising and lowering the lower chock holding means, and the upper and lower chock carts are respectively for upper chocks An air bearing driving means and a lower chock air bearing driving means are provided.
The roll chock attaching / detaching device according to claim 2 is the above device, wherein the Y-direction driving means, the X-direction driving means, the upper and lower hydraulic unit driving means, and the upper and lower chock air bearing driving means include: It is controlled by the chock attachment / detachment control means, and is configured to attach / detach the chock to / from the roll shaft portion.
The roll chock attaching / detaching device according to claim 3 is characterized in that, in the above device, a pair of left and right traveling carts are arranged on both side surfaces of the stand.
The roll chock attaching / detaching apparatus according to claim 4 is characterized in that, in the above-mentioned apparatus, the upper and lower chock carts respectively include upper chock holding means and lower chock holding means for raising and lowering the chock.
According to a fifth aspect of the present invention, there is provided the roll chock attaching / detaching device, wherein the upper chock carriage and the lower chock carriage are connected to each other and move integrally in the X direction.
The roll chock attachment / detachment device according to claim 6 is the above device, wherein the lower chock carriage has a first length measurement sensor for measuring a distance between a holding frame of the lower chock holding means and a traveling carriage upper surface, A second measuring sensor for measuring the distance between the gantry and the upper surface of the traveling carriage; a fourth measuring sensor for measuring a distance between the gantry of the upper chock carriage and the holding frame of the upper chock holding means; It is characterized by comprising.
The roll chock attaching / detaching apparatus according to claim 7 is characterized in that, in the above-mentioned apparatus, the first to fourth length measuring sensors are ultrasonic sensors.
The roll chock attaching / detaching apparatus according to claim 8 is characterized in that, in the above apparatus, the upper chock carriage includes a chock pushing means.
The roll chock attaching / detaching apparatus according to claim 9 is the above apparatus, wherein the stand includes an L-shaped bracket pivoted by a lower roll, and the upper roll is placed on the lower roll via the L-shaped bracket. It is structured.
The method of detaching the chock from the roll shaft part of the present invention is selected by selecting the stand on which the roll to be detached and the roll to be detached are selected in the method of detaching the chock from the roll shaft part placed on the stand. The traveling carriage travels in the Y direction to the stand, and after the traveling carriage reaches the selected stand position, the traveling carriage stops in the Y direction, and the upper and lower chock air bearing driving means are driven to move the upper and lower The chock cart is lifted, the upper chock cart and the lower chock cart are advanced in the X direction, inserted into the lower portions of the respective chock, the hydraulic unit driving means of the upper and / or lower chock holding means is driven, and the holding frame is raised. The upper and / or lower chock is mounted, and the upper and / or lower chocks are mounted on the upper and / or lower chock cart. Characterized in that retracting the Yokku carriage.
The method of inserting the upper and / or lower chock into the roll shaft part of the present invention is the method of inserting the chock into the roll shaft part placed on the stand, and the stand in which the roll to be inserted is installed and the insertion Select the roll to be driven, run the traveling carriage equipped with the chock to the selected stand in the Y direction, stop the traveling carriage in the Y direction after the traveling carriage reaches the selected stand position, and the upper and lower chocks The upper and lower chock carts are levitated by driving the air bearing driving means and the upper and lower chock carts are advanced in the X direction.
[0005]
The roll chock attaching / detaching apparatus of the present invention has the following functions and effects due to the above configuration.
That is, since it was possible to carry out two simultaneous chock attachment / detachment operations that were conventionally performed for each roll, the efficiency of the chock attachment / detachment operation could be improved.
Also, the upper roll chock and the lower roll chock are held and lifted by separate chock carts equipped with respective chock holding means, so that the roll accuracy of the upper and lower rolls, the accuracy of the stand chock holding base, The accuracy and the like are not affected between the upper and lower rolls, so that it is easy to align the shaft when attaching or removing the chock.
By using an ultrasonic measurement sensor for detecting the height of the chock, the chock can be attached and detached accurately.
Furthermore, the axial alignment of the chock and the roll is facilitated by the flexibility and the low friction coefficient of the air bearing, and the roll and the chock can be prevented from being damaged.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
A chock that supports a shaft portion such as a rolling roll is large and heavy, and is difficult to handle. Therefore, an improvement in the attaching and detaching work is demanded by the related industries. In response to these demands, the present invention solves the above problems by attaching and detaching the chock with the upper and lower chock carts. Hereinafter, an embodiment of the present invention will be shown, and the roll chock attaching / detaching apparatus of the present invention will be described in detail.
[0007]
FIG. 1 is a front view of a roll chock attaching / detaching apparatus of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a plan view thereof.
The roll chock attaching / detaching apparatus 1 of the present invention includes a pair of left and right upper chock carts 7 (7R, 7L) for attaching / detaching the upper chock 5 (5R, 5L) and a lower chock 6 ( 6R, 6L) a pair of left and right lower chock carts 8 (8R, 8L) and a pair of left and right running carts 10 (7R, 7L), 8 (8R, 8L) mounted respectively. 10R, 10L), Y-direction driving means 9 (9R, 9L) for moving the traveling carriage 10 (10R, 10L) in the Y direction (front and depth directions in FIG. 1), and upper and lower chock carriages 7R, 8R, respectively. And a pair of left and right X-direction driving means 11 (11R, 11L) for moving each of them in the X direction (left-right direction in FIG. 1).
Here, the Y direction means a direction perpendicular to the roll axis line placed horizontally on the stand, and the X direction means the same direction as the roll axis line placed horizontally on the stand.
[0008]
In the roll chock attaching / detaching apparatus of the present invention, the configuration of the means or device provided as a pair on the left and right of the stand 2 is the same, and therefore the configuration of only one side will be described.
[0009]
FIG. 4 shows a schematic view of the X-direction drive means 11R installed on one side (the right side in FIG. 1) of the X-direction drive means. The X-direction drive means 11R includes a motor M having a speed reducer, a chain wheel 14, a driven chain wheel 15, and a chain 13 that runs around both chain wheels 14 and 15, and includes an upper chock carriage 7R and a lower side. The chock cart 8R is connected by a connecting member 12 such as a connecting pin, and is configured such that the upper and lower chock carts 7R, 8R can be moved integrally in the X direction.
[0010]
Next, the upper and lower chock carts will be described.
5 is a schematic front view of the upper chock cart, FIG. 6 is a schematic side view thereof, FIG. 7 is a schematic explanatory view of the air bearings 16 and 46, and FIG. 10 is a schematic side view of the upper chock cart. . As shown in FIGS. 3, 5 to 7, and 10, in the present embodiment, the upper chock carriage 7 (7 </ b> R) holds the gate-shaped gantry 24 and the upper chock downward from the upper portion of the gantry 24. The upper chock holding means 26 suspended through the means 26, the upper hydraulic unit driving means 31 for raising and lowering the upper chock holding means 26, and arms 27 and 28 for mounting the upper chock from the left and right are provided. .
Further, four air bearings 16, 16, 16, 16 are provided at the lower four corners of the base 24 of the upper chock carriage 7 via presser fittings 25, 25, 25, 25, respectively (FIGS. 3 and 5). reference).
[0011]
Further, in order to allow the upper chock carriage 7 to move stably in the X direction, the upper chock carriage 7 and the upper chock carriage 7 are arranged on the upper surface 10a of the Y direction traveling carriage 10 (10R) along the axial direction of the rolls 3 and 4. The guides 10 b and 10 b having a predetermined length are provided on the left and right sides of the lower chock carriage 7 with a slight gap therebetween. The upper chock carriage 7 is guided in the traveling direction in the X direction while contacting the guides 10b, 10b provided on the lower side surface thereof.
[0012]
Next, the structure of the lower chock cart will be described.
FIG. 8 is a schematic front view of the lower chock cart 8 (8R), and FIG. 9 is a partial sectional side view thereof. The lower chock carriage 8 includes a rectangular frame 34, a lower chock holding means 37 for mounting the lower chock provided on the upper portion of the frame 34, and a lower hydraulic unit driving means 35 for moving the lower chock holding means 37 up and down. It is provided between the frame 34 and the lower chock holding means 37.
[0013]
Similarly to the upper chock cart 7, the lower chock cart 8 has four air bearings 46, 46, 4 at the lower four corners of the frame 34 of the lower chock cart 8 via presser fittings 47, 47, 47, 47, respectively. 46 and 46 are provided (see FIGS. 3 and 8).
[0014]
The lower chock carriage 8 has a lower hydraulic unit driving means 35 attached to the frame 34, and the lower chock 6 provided on the holding frame 36 is mounted by driving the lower hydraulic unit driving means 35. Therefore, the lower chock holding means 37 can be moved up and down.
The lower chock cart 8 is preferably connected to the upper chock cart 7 by a connecting member having a long hole so that it can move slightly in the vertical direction (Z direction).
[0015]
Next, the structure of the air bearing 16 used for the upper chock cart 7 and the air bearing 46 used for the lower chock cart 8 will be described.
As shown in FIG. 7, the air bearings 16 and 46 are constituted by a thin rubber bag-like diaphragm 17, an upper plate 18, a receiving plate 19, and presser plates 20 and 21, and each component is bonded with an adhesive or the like. It is preferable.
[0016]
In FIG. 7, compressed air is supplied from the air supply hole 18 a of the upper plate 18 to the air chamber 22 of the diaphragm 17, passes through the vent hole 17 a of the diaphragm 17, and is secondary between the upper surface 10 a of the Y-direction traveling carriage 10. The air bearings 16..., 46... Can be floated by being put in the air chamber 23 and being discharged in the direction of the arrow through the gap between the diaphragm 17 and the upper surface 10 a of the Y-direction traveling carriage 10.
In this case, by forming an air film layer between the diaphragm 17 and the upper surface 10a, the friction coefficient between the air bearing 16 and the floor is reduced to about 1/1000, and the upper chock carriage mounted on the upper plate 18 is used. 7 can be moved in the X direction with a small force, and a head of about 20 mm can be secured.
[0017]
Conventionally, when attaching and detaching a chock with a truck with a jack, it is difficult to insert the chock if the roll and chock shaft cores are slightly displaced, and if forced, a large force is required due to the weight of the roll or carriage, etc. And the chock was damaged. However, in the present invention, the upper chock cart 7 and the lower chock cart 8 can be moved with a small force by using the air bearings 16 and 46.
Further, since the air bearings 16 and 46 have movement flexibility, the upper chock 5 is moved upward along the chamfered portion of the upper roll shaft portion 3a even if the shaft center is displaced between the roll shaft portion and the chock. It can be easily inserted without damaging the roll shaft 3a. The same applies to the case where the lower chock 6 is inserted into the lower roll 4 shaft portion 4a.
[0018]
Next, a length measuring sensor used in the chock cart will be described.
When inserting a roll chock into the roll shaft, it is necessary to align the axis of both parts almost accurately. Therefore, as shown in FIG. 10, it is desirable to provide upper and lower chock height detecting means 51 for detecting the heights of the upper and lower chock 5 and 6 in the upper and lower chock carts. These upper and lower chock height detecting means are provided in the lower chock carriage 8 for measuring the distance between the holding frame 36 of the lower chock holding means 37 and the traveling carriage upper surface 10a, and the upper chock carriage 7. The distance between the second measuring sensor 39 and the third measuring sensor 40, which measure the distance between the gantry 24 and the traveling carriage upper surface 10a, and the gantry 24 of the upper chock carriage 7 and the holding frame 30 of the upper chock holding means 26. And a fourth length measuring sensor 41 for measuring. That is, the fourth length measuring sensor 41 is provided on the upper part of the gantry 24 of the upper chock carriage 7, measures the distance between the gantry 24 and the holding frame 30 of the upper chock holding means 26, and uses this data as the chock attachment / detachment control means. By transmitting to 60, the current height of the upper chock 5 is calculated by comparing with the distance inputted in advance, and stored in the upper and lower chock height storage means 51.
[0019]
In addition, second and third length measuring sensors 39 and 40 are provided at the left and right lower portions of the gantry 24, respectively, and the distance between the gantry 24 and the upper surface 10a of the traveling carriage 10 is measured, and this data is checked and removed. By transmitting to the control means 60, the current height of the left and right of the gantry 24 is calculated by comparing with the distance inputted in advance, and stored in the upper and lower chock height storage means 51.
[0020]
Further, the holding frame 36 is provided with a first length measuring sensor 42. The distance between the holding frame 36 of the lower chock holding means 37 and the upper surface 10a of the traveling carriage 10 is measured, and this data is used as the chock attachment / detachment control means. By transmitting to 60, the current height of the lower chock 6 is calculated by comparing with the distance inputted in advance, and stored in the upper and lower chock height storage means 51.
[0021]
The first to fourth length measuring sensors 39, 40, 41, and 42 are desirable because they can be miniaturized by using an ultrasonic type as compared with a conventional mechanical length measuring sensor or the like.
[0022]
The roll chock attaching / detaching apparatus having the above-described configuration is used as follows. That is, as shown in FIGS. 1 to 3, a pair of rolls 3, 4 are installed on the stand 2 in a horizontal state on the upper and lower stages, and at both ends of the shaft portions 3 a, 4 a of the rolls 3, 4, An upper roll chock (hereinafter referred to as upper chock) 5 and a lower roll chock (hereinafter referred to as lower chock) 6 are attached and detached.
In the drawing, the upper chock 5R attached to and detached from the right end shaft portion 3a of the upper roll 3 is attached and detached by the upper chock cart 7R, and the lower chock 6R attached to and detached from the right end shaft portion 4a of the lower roll 4 is the lower chock cart 8R. It is attached and detached by.
Similarly, the upper chock 5L attached / detached to / from the left end shaft portion of the upper roll 3 is attached / detached by the upper chock cart 7L, and the lower chock 6L attached / detached to the left end shaft portion of the lower roll 4 is attached / detached by the lower chock cart 8L. Is done.
[0023]
The upper and lower chock carts 7R and 8R installed on the upper surface 10a of the traveling carriage 10 are moved in the axial direction (X direction) of the roll installed on the stand 2 by the driving means 9R such as a motor and the driving means 11R. Thus, the attachment / detachment operation can be performed between the upper and lower chock 5R, 6R and the upper or lower roll 3, 4 right end shaft portion 3a, 4a.
[0024]
Similarly, in the upper and lower chock carts 7L and 8L provided on the left side of the stand 2 (see FIG. 1), the upper and lower chocks 5L and 6L and the upper or lower rolls 3 and 4 are driven by the driving means 9L and the driving means 11L. An attachment / detachment operation can be performed between the left end shaft portion.
[0025]
FIG. 4 shows a schematic diagram of the driving means 11R.
The upper chock cart 7R and the lower chock cart 8R are connected by a connecting member 12 such as a pin. One end of the chain 13 provided in the driving means 11R is locked to the rear portion of the upper chock cart 7R, and the other end is locked to the front portion of the lower chock cart 8R via a reduction gear (not shown). The upper and lower chock carts 7R and 8R are moved together by being driven by a chain wheel 14 and a driven chain wheel 15 driven by driving means 9R such as a motor M.
The upper and lower chocks 5 and 6 can be attached / detached on each side of the roll shaft part, but can also be simultaneously performed on both sides of the roll shaft part in order to efficiently attach / detach the chock.
[0026]
One or a plurality of the stands 2 are arranged depending on the operation conditions, and a series of chock attachment / detachment operations can be managed by the chock attachment / detachment control means 60 controlled by a computer or the like.
[0027]
Next, a case where the upper chock 5 is inserted into the upper roll shaft portion 3a will be described.
As shown in FIGS. 5 and 6, the arms 27 and 28 of the upper chock holding means 26 of the upper chock carriage 7 </ b> R are approached (reduced) by the feed screw 29 that is rotated by the motor 50 with a speed reducer.
[0028]
Next, by driving the upper hydraulic unit driving means 31 and raising the holding frame 30, the step portions 27a, 28a or 27b, 28b of the arms 27, 28 engaged with the feed screw 29 attached to the holding frame 30 are used. Mount and lift upper chock 5. In this case, by providing a plurality of stepped portions 27a, 28a or 27b, 28b, several types of chocks having different shapes can be mounted and lifted using appropriate stepped portions.
[0029]
Then, the upper chock cart 7R is moved closer to the roll 3 by the X-direction drive means 11R (forward), and the upper chock 5 is inserted into the upper roll shaft portion 3a.
Further, the upper chock cart 7R is provided with a chock pushing means 32, and when the movement distance is insufficient due to the inclination of the upper chock cart 7R or the like, the pushing and shrinking is performed by the cylinder 33 provided in the chock pushing means 32. The metal fitting 49 can be extended, and the upper chock 5R can be further advanced in the direction of the arrow P, and can be securely inserted into the upper roll shaft portion 3a.
[0030]
When the upper chock 5R is detached (withdrawn) from the upper roll shaft portion 3a, the upper chock carriage 7R is advanced to the roll 3 by the X direction driving means 11R, and the arms 27, 27 are driven by the feed screw 29 and the upper hydraulic unit driving means 31. 28 is brought close to the upper chock 5, and the upper chock 5 is lifted by the step portions 27a, 28a or 27b, 28b of the arms 27, 28. When the hydraulic pressure supplied to the upper hydraulic unit driving means 31 is detected and reaches a predetermined pressure, that is, when the pressure reaches the pressure capable of supporting the weight of the related parts including the holding frame 30 and the upper chock 5R, the X direction The upper chock carriage 7R is moved backward by the driving means 11R to release the upper chock 5R. At this time, the force that the upper chock 5R acts on the roll shaft portion 3a is substantially zero, and the upper chock 5R can be detached with a small force without damaging each component. The same applies to the lower roll 4.
[0031]
FIG. 11 shows a schematic side view of the stand 2, (A) is a schematic side view before the lower roll 4 is placed on the stand 2, and (B) is a schematic view after the lower roll 4 is placed. A side view is shown.
The stand 43 of the stand 2 is provided with an L-shaped metal fitting 45 that pivots about the pin 44. As shown in FIG. 11A, when the lower roll 4 is lowered onto the stand 2, the lower roll 4 The neck 4b engages with the first protrusion 45a of the L-shaped bracket 45 to rotate the L-shaped bracket 45 counterclockwise, and the state shown in FIG. By bringing the neck 3b of the upper roll 3 into contact, the upper roll 3 and the lower roll 4 are installed on the stand 2, and preparations for attaching and detaching the chocks 5 and 6 are completed.
The third protrusion 45c is formed to engage with the neck 4b of the lower roll when the lower roll 4 is raised and rotate the L-shaped metal fitting 45 in the clockwise direction to return to the state shown in FIG.
In the present invention, by using such a stand 2 and making the diameter dimension of the neck part of all rolls the same value, each height dimension of the upper and lower rolls can be made constant, and the attaching and detaching operation of the chock can be performed. It can also be facilitated.
[0032]
The roll chock attaching / detaching apparatus 1 of the present invention preferably uses a chock attaching / detaching control means 60 controlled by a sequence or a computer or the like in order to efficiently perform the attaching / detaching operation of the series of upper and lower chocks 5, 6.
The roll attaching / detaching operation by the roll chock attaching / detaching apparatus of the present invention will be described with reference to the flowchart at the time of chuck mounting shown in FIG. 12, the flowchart at the time of chuck releasing shown in FIG. 13, and the control block diagram shown in FIG.
[0033]
(1) First, when the chock is released from the roll, the stand 2 on which the roll to be released is installed and the roll to be released are selected (S1).
(2) The traveling carriage 10 is caused to travel to the selected stand 2 (S2). In addition, when the selected stand is a plurality of stands, the order of chock removal is determined in advance.
(3) After the traveling carriage 10 reaches the selected stand position, the traveling carriage 10 stops traveling in the Y direction (S3).
(4) The traveling of the traveling carriage 10 is fixed with a stopper (S4).
(5) The upper chock air bearing driving means 61 and the lower chock air bearing driving means 62 are driven to float the upper chock carriage 7 and the lower chock carriage 8 (S5).
(6) The upper and lower chock carts 7 and 8 are moved forward (X direction) and inserted into the lower portions of the respective chocks (S6).
(7) When the upper and lower chock carts 7 and 8 reach a preset position (determined by roll selection in S1), the forward (X direction) of the upper and lower chock carts 7 and 8 is stopped (S7). ).
(8) The lower hydraulic unit driving means 35 is driven to raise the holding frame (S8).
(9) The lower hydraulic unit drive means 35 of the lower chock holding means 37 detects the lower chock weight (S9).
(10) When the lower hydraulic unit driving means 35 of the lower chock holding means 37 detects the total weight of the lower chock, the ascent is stopped (S10).
(11) The rising amount of the holding frame 36 of the lower chock holding means 37 is calculated and stored in the upper and lower chock height storage means 51 (S11). This data is used as data when the chock is inserted later.
(12) Furthermore, do you leave the upper chock? Is determined (S12). This setting is input in advance when a role is selected.
(13) If not separated, the upper and lower chock carts 7 and 8 are moved backward while the lower chock 6 is mounted on the lower chock cart 8, and the lower chock 6 is detached from the lower roll 4 (S13).
(14) When the upper chock is disengaged (when the roll is selected, “the upper chock is also disengaged” is selected), the upper chock holding means 26 is driven by the upper hydraulic unit driving means 31 to raise the holding frame 30 (S14). .
(15) The upper hydraulic unit driving means 31 of the upper chock holding means 26 detects the upper chock weight (S15).
(16) When the upper hydraulic unit driving means 31 of the upper chock holding means 26 detects the total weight of the upper chock, the ascent is stopped (S16).
(17) The rising amount of the holding frame 30 of the upper chock holding means 26 is calculated and stored in the upper and lower chock height storage means 51 (S17). This data is used as data when the chock is inserted later.
(18) The arms 27 and 28 of the upper chock 5 are reduced (the width of both arms is reduced), and the upper chock 5 is mounted at both ends of the arm step portions 27a and 28a (or 27b and 28b) (S18).
(19) With the upper and lower chock 5 and 6 mounted, the upper and lower chock carts 7 and 8 are moved backward to separate the upper and lower chock 5 and 6 from the upper and lower rolls 3 and 4, respectively (S19).
(20) The upper chock air bearing driving means 61 and the lower chock air bearing driving means 62 are stopped and the upper and lower chock carts 7 and 8 are landed (S20).
(21) The travel stoppers of the upper and lower chock carts 7 and 8 are released (S21).
(22) The lower chock 6 (and the upper chock 5) is mounted and moved to a predetermined chock insertion location (S22).
[0034]
Next, a case where a chock is inserted into a roll will be described.
(23) From the position where the chock is removed, the chock is mounted on the upper chock cart 7 and / or the lower chock cart 8 and travels on the traveling cart 10 to the new roll position (roll to which the chock is mounted) installed on the same stand. (S101).
(24) After the traveling carriage 10 has reached the new roll position, the traveling carriage 10 stops traveling in the Y direction (S102).
(25) The traveling of the traveling carriage 10 is fixed with a stopper (S103).
(26) The upper and lower chock air bearing driving means 61 and 62 are driven to float the upper chock cart 7 and the lower chock cart 8 (S104).
(27) The heights of the upper and lower chock carts 7 and 8 at the time of ascent are measured by the first to fourth length measuring sensors 39, 40, 41 and 42, and stored in the upper and lower chock height storage means 51 when the chock is removed In addition to the comparison with the stored data, the heights of the upper and lower chocks 5 and 6 are adjusted by driving the upper and lower hydraulic unit driving means 31 and 35, respectively (S105). In addition, when only the upper or lower roll is selected in the roll selection, only the height of the selected chock is adjusted.
(28) The upper and lower chock carts 7 and 8 are advanced in the X direction, and the upper and lower chock carts 7 and 8 are inserted into the lower part of the roll (S106).
(29) When the upper and lower chock carts 7 and 8 reach the preset positions, the forward movement is stopped (S107).
(30) Is the upper chock 5 also inserted into the upper roll 3? Is determined (S108). In this case, it is selected in advance when the roll is selected.
(31) When the upper chock 5 is not inserted, the upper and lower chock carts 7 and 8 are moved forward while the lower chock 6 is mounted on the lower chock cart 8, and the lower chock 6 is inserted into the lower roll 4 (S109). ).
(32) When inserting the upper chock 5 (select “Insert upper chock” when selecting the roll), move the upper and lower chock carts 7 and 8 forward with the upper and lower chock 5 and 6 mounted. The upper and lower chock 5 and 6 are respectively inserted into the upper and lower rolls 3 and 4 (S110).
(33) The arms 27 and 28 on which the upper chock 5 is mounted are enlarged (the width of both arms is increased), and the upper chock 5 mounted on both ends of the arm step portions 27a and 28a (or 27b and 28b) is released (S111). ).
(34) The upper and lower chock carts 7 and 8 are moved backward in the X direction (S112).
(35) The upper / lower chock air bearing drive means 61, 62 are stopped and the upper / lower chock carts 7, 8 are landed (S113).
The traveling carriage is moved to another stand for the next roll drawing.
[0035]
【The invention's effect】
The roll chock attaching / detaching apparatus of the present invention can attach / detach the pair of upper and lower roll chocks simultaneously, so that the work efficiency is increased and the installation area can be greatly reduced. In addition, the work efficiency can be further improved because it can be attached to and detached from the left and right shafts of the roll at the same time, and since these are automated by sequence control or computer control, the number of workers can be greatly reduced.
In addition, by using air bearings for the upper and lower chock carts that move with the chock, the chock can be attached and detached with a small force without damaging the chock and the roll.
[Brief description of the drawings]
FIG. 1 is a front view of a roll chock attaching / detaching device of the present invention.
FIG. 2 is a side view of the roll chock attaching / detaching device of the present invention.
FIG. 3 is a plan view of the roll chock attaching / detaching device of the present invention.
FIG. 4 is a schematic view of an X-direction driving unit.
FIG. 5 is a schematic front view of an upper chock cart.
FIG. 6 is a schematic side view of the upper chock cart.
FIG. 7 is a schematic explanatory diagram of an air bearing.
FIG. 8 is a schematic front view of a lower chock cart.
FIG. 9 is a partial sectional side view of the lower chock cart.
FIG. 10 is a schematic side view of the upper chock cart.
FIG. 11 is a schematic side view of a stand.
FIG. 12 is a flowchart when the chuck is inserted.
FIG. 13 is a flowchart when the chuck is released.
FIG. 14 is a control block diagram of the roll chock attaching / detaching device of the present invention.
[Explanation of symbols]
1: Roll chock attachment / detachment device
2: Stand
3: Upper roll
3a: Shaft
3b: neck
4: Lower roll
4a: Shaft
4b: neck
5: Upper chock
6: Lower chock
7: Upper chock cart
8: Lower chock trolley
9: Driving means
10: Traveling cart
10a: Top surface
10b: Guide
11: Driving means
12: Pin
13: Chain
14: Chain wheel
15: Driven chain
16: Air bearing
17: Diaphragm
17a: Ventilation hole
18: Upper plate
18a: Air supply hole
19: Back plate
20, 21: Presser plate
22: Air chamber
23: Secondary air chamber
24: Mount
25: Presser bracket
26: Upper chock holding means
27: Arm
27a, 27b: Stepped portion
28: Arm
28a: Step
28b: Step
29: Lead screw
30: Holding frame
31: Upper hydraulic unit drive means
32: Chock extrusion means
33: Cylinder
34: Frame
34a: bottom surface
35: Lower hydraulic unit drive means
36: Holding frame
36a: Positioning pin
37: Lower chock holding means
39, 40, 41, 42: Measuring sensor
43: Mount
44: Pin
45: L-shaped bracket
45a: First protrusion
45b: Second protrusion
45c: Third protrusion
46: Air bearing
47: Presser bracket
48: Guide pin
49: Extruded metal fitting
50: Motor with reduction gear
51: Upper and lower chock height storage means
60: Chock attachment / detachment control means
61: Air bearing drive means for upper chock
62: Air bearing drive means for lower chock

Claims (11)

In the roll chock attaching / detaching device for attaching / detaching the chock to the roll shaft part of the roll placed on the stand,
A traveling carriage disposed on the side of the stand and movable in the Y direction;
Y direction driving means for moving the traveling carriage in the Y direction;
An upper chock cart and a lower chock cart disposed on the upper surface of the traveling cart and movable in the X direction;
X direction driving means for moving the upper and lower chock carts in the X direction;
Upper hydraulic unit driving means for raising and lowering the upper chock holding means;
Lower hydraulic unit driving means for raising and lowering the lower chock holding means,
The roll chock attachment / detachment device, wherein the upper and lower chock carts are respectively provided with an upper chock air bearing driving means and a lower chock air bearing driving means. The Y-direction driving means, the X-direction driving means, the upper and lower hydraulic unit driving means, and the upper and lower chock air bearing driving means,
Controlled by the chock attachment / detachment control means,
2. The roll chock attaching / detaching device according to claim 1, wherein the chock is attached to and detached from the roll shaft portion. The roll chock attaching / detaching device according to claim 1, wherein a pair of left and right traveling carts are disposed on both side surfaces of the stand. The roll upper chock attachment / detachment device according to any one of claims 1 to 3, wherein the upper and lower chock carts respectively include upper chock holding means and lower chock holding means for raising and lowering the chock. The roll upper chock attachment / detachment apparatus according to any one of claims 1 to 4, wherein the upper chock carriage and the lower chock carriage are connected and moved integrally in the X direction. The lower chock carriage has a first length measurement sensor for measuring a distance between a holding frame of the lower chock holding means and a traveling carriage upper surface;
The upper chock cart is
Second and third length measuring sensors for measuring the distance between the gantry and the upper surface of the traveling carriage;
A fourth length measurement sensor for measuring a distance between a frame of the upper chock carriage and a holding frame of the upper chock holding means;
The chock attaching / detaching apparatus for rolls according to claim 1, comprising: The roll chock attaching / detaching device according to claim 6, wherein the first to fourth length measuring sensors are ultrasonic sensors. The roll upper chock attachment / detachment device according to any one of claims 1 to 7, wherein the upper chock carriage includes chock extrusion means. 9. The stand according to claim 1, wherein the stand includes an L-shaped bracket pivoted by a lower roll, and the upper roll is placed on the lower roll via the L-shaped bracket. The chock attachment / detachment device for rolls according to 1. In the method of removing the chock from the roll shaft part placed on the stand,
Select the stand on which the roll to be detached and the roll to be detached are selected,
Run the traveling carriage in the Y direction to the selected stand,
After the traveling carriage reaches the selected stand position, the traveling carriage stops in the Y direction,
Drive the upper and lower chock air bearing driving means to float the upper and lower chock carts, and advance the upper chock cart and the lower chock cart in the X direction and insert them in the lower part of each chock,
The upper and / or lower chock is mounted by driving the hydraulic unit driving means of the upper and / or lower chock holding means to raise the holding frame,
A method in which the upper and / or lower chock carts are retracted while the upper and / or lower chock carts are mounted on the upper and / or lower chock carts to release the chock from the roll shaft portion. In the method of inserting the chock into the roll shaft part placed on the stand,
Select the stand where the roll to be inserted and the roll to be inserted are selected,
Run the traveling carriage equipped with chock to the selected stand in the Y direction,
After the traveling carriage reaches the selected stand position, the traveling carriage stops in the Y direction,
A method of driving air bearing driving means for upper and lower chocks to float the upper and lower chock carts, and moving the upper and lower chock carts in the X direction to insert the upper and / or lower chocks into the roll shaft portion.

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