KR100851953B1 - Automatic Control Device for Chopper Knife Gap - Google Patents

Abstract

The apparatus for adjusting the chopper knife gap according to the present invention includes a chopper knife gap automatic control part and a chopper knife body part, and the chopper knife gap automatic adjustment part includes an encoder 132 for detecting a chopper knife gap position and an encoder 132 detected value. A gap control PLC 141 and a line local panel 142 for receiving strip information from the PLC 229 on the entry / exit side of the strip 9, a drive body 14 operated according to a PLC numerical control motion signal, A geared motor 117 and a reducer 104, a spline 144 that operates in rotation, and an adapter 137 that operates forward and backward, and the chopper knife body portion includes an upper gear in which the power of the motor 224 is parallel ( It is applied to one side of one of the 209 and the lower gear 208, the other side of the upper gear 209 and the lower gear 208 is configured to fasten the upper chopper knife 213 and the lower chopper knife 212, This effects both edges in the side trimmer. As when cutting a practical effect on such as to prevent the chopper knife gap to be effectively controlled while effectively done automatically by the chopper operation efficiency gap and improve the quality and safety accident.

Chopper Knife Gap, Gap, Encoder, Reducer

Description

Chopper Knife Gap {Automatic Control Device for Chopper Knife Gap}

1 is a schematic diagram of a typical pickling line rolling process,

2 is a perspective view (expansion section of a notch part) for explaining a conventional process of adjusting a chopper knife gap;

Figure 3 is an overall perspective view of the application of the chopper knife automatic adjustment device of the present invention,

Figure 4 is an exploded perspective view of the knife gap adjustment unit of the chopper knife automatic adjustment device of the present invention,

5 is an exploded perspective view of the chopper knife body portion of the present invention;

6 is a side view of the entire equipment to which the automatic adjustment device of the present invention is applied;

7 is a plan view A-A of the main part of FIG. 6;

8 is a front view of the automatic knife gap adjustment unit of the present invention,

9 is an exemplary view of a local panel for manual adjustment of a chopper knife;

10 is a system control block diagram for an apparatus of the present invention;

11 is a flowchart in accordance with the operation of the present invention.

<Description of Symbols for Major Parts of Drawings>

1: tension reel 2: scrap chopper                 

3: side trimmer 4: pickling tank

5: scale brake 6: welder (welding)

7: Pay off reel (POR) 8: Strip cutting (scrap)

9: strip 10: striptease

11: Chopper Knife 12: Rotary Lever

13: head shift knocking 14: driving body

15: Notching

100: automatic KNIFE GAP control unit 101: rear fixing cover

102: rear fixing cover bolt 103: rotary shaft cover

104: reducer 105: front fixing cover

106: front cover fixing bolt 107: reducer fixing bolt

108: cover fixing bolt 109: reducer motor rotation axis

110: torque limit coupling 111: screw shaft

112: connecting pin 113: bearing

114: proximity sensor 115: proximity sensor fixing bolt

116: bearing bracket 117: geared motor

118: cap fixing bolt 119: spindle cup

120: spindle cap 121: geared drive shaft

122: gear coupling cap 123: gear coupling fixing nut

124: gear coupling rotating plate 125: gear coupling bolt                 

126: gear fixing bolt 127: geared motor body

128: geared fixing nut 129: geared base

130: cap fixing nut 131: encoder fixing bolt

132: rotary encoder 133: encoder bracket

134: timing belt 135: encoder timing pulley

136: timing pulley 137: adapter

138: adapter fixing bolt 139: fixed bearing

140: gear coupling cup 141: PLC for gap control

142: Line Local Panel 143: Line Only MMI

144: spline

200: chopper knife body portion 201: rear cover fixing bolt

202: rear fixing cover 203: rear bearing

204: knife cover fixing bolt 205: knife spindle cover

206: bearing housing bolt 207: gear cover bolt

208: lower gear 209: upper gear

210: front fixed cover 211: front bearing

212: Lower Chopper Knife 213: Upper Chopper Knife

214: rotating shaft 215: rotating shaft fixed bearing housing

216: Knife Spindle Bolt 217: Knife Spindle Cup

218: knife spindle cap 219: knife spindle nut                 

220: motor fixed bearing housing 221: housing fixing bolt

222: Chopper Knife Base 223: Motor Fixing Bolt

224: motor 225: gear cover

226: cover fixing bolt 227: spindle

228: gear coupling 229: entry and exit PLC

The present invention relates to an apparatus for adjusting a chopper knife gap, and more particularly, to adjust a knife gap (KNIFE GAP) to effectively cut both edge portions of a strip cut by a side trimmer to facilitate scraping. In this case, the present invention relates to a chopper knife gap automatic control device which detects the PLC and enables automatic and accurate GAP setting and adjustment to improve work efficiency and quality and prevent accidents.

1 shows a schematic of a typical pickling line rolling process.

In a typical pickling rolling process, as shown in FIG. 1, a coil supplied from a correction is mounted on a pay off reel (7) and expanded to cut the coil tail portion two or three times, and work with a pickling coil. After the welding 6 is welded to the end, the strip 9 enters the strip 9 and passes through a scale brake 5 for suppressing scale and a pickling tank 4 for pickling. The strip is stopped at the notch part (mechanical device for cutting the edges of the strip into 'c' type; not shown), and is input to the notch part (not shown) through an information retrieval process of receiving information of the strip from the exit PLC. (INPUT) to move the D / S, W / S to the notch (not shown) in the strip 9 to operate the notching 15, the strip is completed in the PLC when the notching (15) is completed, the strip proceeds The input information is input to the side trimmer 3 to determine and adjust the appropriate width of the side trimmer, and both edge portions of the strip 9 that have entered are cut by the side trimmer 3, and the cut scrap ( 8) is guided to the strip chute 10 is to be cut by the chopper knife (11).

However, after cutting both edges of the W / S and the D / S by the side trimmer 3 according to the demand width of the hot rolled coil, the chopper knife 11 to facilitate scrap processing. In performing the cutting operation to a certain size (about 180 mm), if the material is used after switching to the material material work, the wear of the chopper knife 11 becomes severe and affects the cut portion.

That is, although the strip 9 can be cut regardless of the material, the thickness, and the material by using a device called the chopper knife 11 installed at the rear side of the side trimmer 3, in practice, the chopper knife 11 Abrasion is inevitable due to the inconstant friction between the upper and lower knives when cutting the strip 9 edges. In particular, when the strip is converted from the thick material to the thin material, it is impossible to perform normal work due to frequent cutting defects of the scrap, and also because the defective chopper knife 11 operation causes a failure in the shear of the strip 9, the chopper. Excessive line stop time for the replacement of the knife 11 is required.                         

Therefore, the method generally used for eliminating the scrap cutting defect in the prior art is to manually adjust the chopper knife gap as shown in a perspective view (exploded view) for explaining the conventional process of adjusting the chopper knife gap of FIG. It is a method of cutting and removing the strip 9 by operation.

That is, in the conventional method for removing the scrap cut by the chopper knife gap adjustment, as shown in FIGS. 1 and 2, the notching portion is notched in the w / s and d / s portions at the w / s and d / s portions, respectively. When the (15) strip (9) enters the side trimmer (3), the cut scrap (8) is guided to the strip chute 10 while the chopper knife (11) is rotated in the circumferential direction to cut. At this time, when adjusting the chopper knife gap as shown in FIG. 2, the recoil operation is stopped, and the operator moves the rotary lever 12 in the chopper knife 11 in the circumferential direction to finely adjust the fine adjustment. When the headshift knocking (13) device is to use a method of locking.

However, in the above-described work by hand, a large portion of the chopper knife 11 is worn out, and the work defect caused by the worn knife and the operator manually manipulates the chopper knife gap. Due to the stop time, and the manual operation of the rotary lever 12 and the head shift knocking 13 by hand, it causes a safety accident, and also a considerable amount of error occurs due to the manual operation of the chopper knife gap, resulting in scrap ( 8) There is a problem such as increased work load due to poor cutting.

The present invention has been made in order to solve the above problems, while the chopper knife gap can be effectively controlled while cutting both edges in the side trimmer, so that the chopper knife gap can be automatically and effectively improved to improve work efficiency and quality. The purpose of the present invention is to provide a chopper knife gap automatic control device for preventing accidents.

In order to achieve the above technical problem, the apparatus for adjusting the chopper knife gap of the present invention includes a chopper knife gap automatic adjusting part and a chopper knife body part.
The chopper knife gap automatic control unit,

An encoder 132 for detecting a chopper knife gap position,

A gap control PLC (141) and a line local panel (142) for receiving the detection value from the encoder (132) and receiving strip information from the entry / exit PLC (229) of the strip (9);

A drive body 14, a geared motor 117 and a reducer 104, which operate according to the PLC numerical control motion signal, a spline 144 that rotates, and an adapter 137 that moves forward and backward.

The chopper knife body portion,
The power of the motor 224 is applied to one side of the parallel upper gear 209 and the lower gear 208, and the upper chopper knife 213 on the other side of the upper gear 209 and the lower gear 208, respectively. And the lower chopper knife 212 is configured to be fastened.

In addition, in the above, the geared motor 117 of the chopper knife gap automatic control unit is fastened to the geared motor body 127 via the spindle 227.

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The geared motor body 127 is also fastened to the reducer 104 via a gear coupling 228 and a timing pulley 136,

The timing pulley 136 is fastened to the rotary encoder 132 through the timing belt 134,

The reducer 104 is fastened to the reducer motor rotating shaft 109, the torque limit coupling 110, and the bearing 113 installed on the bearing bracket 116 through the screw shaft 111,

The 'b' shaped proximity sensor 114 is fastened to the bearing bracket 116,

The adapter 137 is fastened to the bearing bracket 116 corresponding to the proximity sensor 114,

The fixed bearing 139 is configured to be coaxially coupled with the adapter 137.

And the chopper knife body part,

The motor 224 is coupled to the chopper knife base 222,

The motor 224 is connected to the motor fixed bearing housing 220, the knife spindle portion, and the rotary shaft 214 which is installed through the rotary shaft fixed bearing housing 215 in order.

One side of the lower gear 208 of the upper gear 209 and the lower gear 208 is installed in parallel in the gear cover 225 and both ends are supported by the bearing (211, 203). Being fastened to,

The other side of the upper gear 209 and the lower gear 208 is configured to be fastened to the upper chopper knife 213 and the lower chopper knife 212, respectively.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

Figure 3 is an overall perspective view of applying the chopper knife automatic adjustment device of the present invention, Figure 4 is an exploded perspective view of the knife gap control unit of the chopper knife automatic adjustment device of the present invention, Figure 5 is an exploded perspective view of the chopper knife body portion of the present invention, Figure 6 Is a side view of the entire equipment to which the automatic adjustment device of the present invention is applied, FIG. 7 is a plan view AA of the main part of FIG. 6, FIG. 8 is a front view of the automatic knife gap control unit of the present invention, and FIG. 9 is an example of a local panel for manual adjustment of a chopper knife. It is also.

The apparatus of the present invention is composed of a chopper knife gap automatic adjustment part and a chopper knife body part for effectively automatically operating the chopper knife while effectively cutting the W / S and D / S edge parts in the side trimmer as shown in FIG. 3. .

The chopper knife gap automatic control unit detects a change in the rotational speed of the geared motor 117 input to the reducer 104 in the rotary encoder 132 to automatically adjust the gap regardless of the thickness of the strip 9 material. On the exit side of the reducer 104, the proximity sensor 114 is configured to be fastened.

In addition, the chopper knife body portion is applied to one side of the upper gear 209 and the lower gear 208 in which the power of the motor 224 is parallel, the upper chopper knife 213 and the lower chopper knife ( 212) is configured to be fastened.

According to an embodiment of the chopper knife gap automatic control unit used regardless of the material, material and thickness of the strip, as shown in FIG. 4, first, a geared motor body 127 having a plurality of bolt fastening holes at the bottom and The geared base 129 having a plurality of bolt fastening holes on the upper surface is fastened by a plurality of gear fixing bolts 126 and a geared fixing nut 128.

Thereafter, a spindle cap 120 having a plurality of holes and a spindle cup 119 having a plurality of holes corresponding thereto penetrate the cylindrical geared drive shaft 121 installed to penetrate one side of the geared motor body 127. The shaft of the geared motor 117 is coupled to the geared drive shaft 121, and is coupled by a plurality of cap fixing bolts 118 and cap fixing nuts 130.

On the other side of the geared motor body 127, a trumpet-shaped gear coupling cup 140 having a plurality of holes, a disc shaped gear coupling rotating plate 124, and a gear coupling cap 122 having a plurality of holes are provided. This is sequentially coaxially coupled is fastened by a plurality of gear coupling bolts 125 and the gear coupling fixing nut 123.

In addition, a timing pulley 136 inserted into one side of the reducer 104 is coaxially inserted into the center hole of the gear coupling cap 122, and the timing pulley 136 has a rubber chain type timing belt ( 134 is engaged and coupled to the encoder timing pulley 135, and the encoder timing pulley 135 is coupled to a motor-type rotary encoder 132 fixed to a base type rotary encoder bracket 133.                     

A reducer motor rotating shaft 109 penetrates the other side of the reducer 104, and a torque limit coupling 110 formed of a chain-shaped nut hole is coupled to the reducer motor rotating shaft 109. The limit coupling 110 has a screw shaft 111 formed in both thread forms and a plate bearing 113 coupled thereto. The bearing 113 is installed in the bearing bracket 116 by inserting and fixing the connection pin 112 in the hole provided in the bearing bracket 116.

Since the proximity sensor 114 of the 'b' shape is fastened to the outer side of the bearing bracket 116, the adapter 137 having a plurality of nut holes in the outer center of the bearing bracket 116 having a stepped type ) Is installed by fastening the bolt 138 to the adapter nut hole part, and the cylindrical nut fixed fixed bearing 139 is inserted one after the other. As a result, the chopper knife gap automatic control unit is completed.

On the other hand, the chopper knife body portion is composed of a lower chopper knife 212 circumferentially engaged by the power of the upper chopper knife 213, as shown in Figure 5 in the chopper knife base 222 having a plurality of holes A gear cover 225 having a plurality of holes is fastened by a plurality of bolts 207 and a cylindrical roller type upper gear 209 and a lower gear 208 are inserted into the gear cover 225. Here, both ends of the upper gear 209 and the lower gear 208 are supported by the ring type front bearing 211 and the rear bearing 203 so as to smoothly rotate.

Then, the upper chopper knife 213 and the lower chopper knife 212 are fastened to the grooves of the upper gear 209 and the lower gear 208, respectively.                     

On the other hand, the motor 224 having a plurality of holes is also fixed to the chopper knife base 222 by a plurality of fixing bolts 223, and a motor fixed bearing having a plurality of holes in the axial front of the motor 224. The housing 220 is fixed to the chopper knife base 222 by the fixing bolt 221. In addition, a disk-shaped knife spindle cap 218 having a plurality of holes and a knife spindle cup 217 are coupled and fastened by a plurality of bolts 216 and nuts 219.

Subsequently, the knife spindle cover 205 having a plurality of holes on the spindle is fastened to the chopper knife base 222 by a plurality of fixing bolts 204, and the rotating shaft fixed bearing housing 215 having a plurality of holes. To the chopper knife base 222 by a plurality of bolts 206.

And the rotating shaft 214 consisting of a rod shaft is inserted into the rotating shaft bearing housing 215, the spindle portion, and the motor fixed bearing housing 220, which is fixed as described above, the rotating shaft fixed bearing of the rotating shaft 214 One end of the housing 215 is configured to be connected to one side of the lower gear 208. In this way, the chopper knife body part is completed.

Hereinafter will be described the operation of the present invention made of a configuration as described above.

9 is an exemplary view of a local panel for chopper knife manual adjustment, FIG. 10 is a system control configuration diagram for the apparatus of the present invention, and FIG. 11 is a flowchart according to the operation of the present invention.

The chopper knife gap automatic control unit automatically adjusts the knife gap (GAP). As shown in FIG. 10, the thickness information of the strip 9 received from the exit PLC is first displayed in the gap control PLC and the motor. Receive from the controller. Then, the rotary encoder 132 and the torque limit coupling 110 are controlled precisely at the reduction ratio 1/30 to 1/50 by the electric shock control action of the geared motor 117 and the reducer 104.

And by rotating the upper shaft (not shown) and the chopper knife 11 to move forward and backward (right and left in the figure) Prize, bottom It is to adjust the chopper knife gap automatically.

Chopper Knife Body Part As shown in FIG. 5, the rotary shaft 214 of the motor 224 installed on the outer surface of the upper chopper knife 11 is engaged with the power by the upper chopper knife 11, and the motor fixed bearing housing 220 and the knife spindle are rotated. It is inserted and operated in the part and the rotating shaft fixed bearing housing 215, and is fastened to the lower gear 208 in the front (right side in the drawing) of the rotating shaft fixed bearing housing 215, and by the operation of the motor 224 The rotating shaft 214 and the lower gear 208 rotates, and the upper gear 209 meshes with it to act to pivot.

An embodiment of the present invention having the same function as described above will be described in detail with reference to the flowchart of FIG. 11 and respective drawings as follows.

As shown in FIG. 1, the operation is started and the picking recoil operation progresses to completion, and the coil information is checked by the host entry terminal and the coil is transferred to the entry coil car. As shown in FIG. It is mounted on the Pay Off Reel (POR) 7 and enlarged to cut the tail portion of the strip 9, and after the pickling recoil is completed, the coil tail portion and the entry roll tail portion are welded (6).                     

Next, as the strip proceeds and advances through the scale brake 5, the picking tank 4 enters and passes through the entrance and exit PLC strip information, and the encoder 132 receives the chopper knife gap while searching. The position is detected and the detected value is transmitted via the gap control PLC and the line local panel.

Next, as shown in FIG. 11, the PLC numerical control motion signal is output, and as shown in FIG. 7, the driving body 14, that is, the geared motor and the reducer 117, 104 is operated to obtain an appropriate reduction ratio 1/30. ~ 50/50 is maintained, and the spline 144 rotation operation and the adapter 137 forward and backward operation are performed.

Then, as shown in FIG. 3, the upper shaft (not shown) and the chopper knife 213 move forward and backward (right and left in the drawing) to transfer, and the setting is completed by adjusting the upper and lower chopper knife gaps (0.01 mm). As shown in FIG. 7, the driving body 14, that is, the geared motor 117, the reducer 104, and the spline 144 stop rotation.

Next, as shown in FIG. 11, the PLC notch part (not shown) is inputted to the numerical information notch part (not shown), and is operated correspondingly to the notch part (not shown) W / S and D / S. After the strip 9 is stopped and the strips W / S and D / S are notched 15 as shown in FIG. 2, the notch portion (not shown) is aligned with the notched portion at the home position. .

Next, as shown in FIG. 1, after the strip 9 enters and stops the strip notch (not shown) on the side trimmer 3 as shown in FIG. 2, as shown in FIG. 10, PLC numerical information side trimmer input, while operating the side trimmer 3 W / S, D / S appropriate correspondence, the side trimmer 3 operates while the strip 9 enters, scrap, strip chute (10) while moving the chopper knife 11, the knife is cut and the work is finished.

Therefore, according to the present invention, when effectively cutting both edges in the side trimmer, while effectively controlling the chopper knife gap, the chopper gap is automatically made effectively, thereby improving work efficiency and quality and preventing safety accidents. There is.

Claims (3)

delete In the adjusting device of the chopper knife gap, An encoder 132 for detecting a chopper knife gap position, A gap control PLC 141 and a line local panel 142 for receiving the detection value from the encoder 132 and receiving strip information from the PLC 229 at the entry and exit side of the strip 9, and A chopper knife composed of a drive body 14, a geared motor 117, and a reducer 104 operated according to a PLC numerical control motion signal, a spline 144 that rotates, and an adapter 137 that operates forward and backward. Gap automatic control unit; And The power of the motor 224 is applied to one side of the parallel upper gear 209 and the lower gear 208, and the upper chopper knife 213 on the other side of the upper gear 209 and the lower gear 208, respectively. And a chopper knife body part configured to be fastened to the lower chopper knife 212, Here, the geared motor 117 is fastened to the geared motor body 127 via the spindle 227, the geared motor body 127 is via the gear coupling 228 and the timing pulley 136 the reducer ( 104, the timing pulley 136 is coupled to the rotary encoder 132 via a timing belt 134, and the reducer 104 is coupled to the reducer motor rotation shaft 109 and the torque limit coupling 110. And a bearing 113 installed on the bearing bracket 116 through the screw shaft 111, and the 'b' shaped proximity sensor 114 is fastened to the bearing bracket 116, and The adapter bracket 116 is fastened to the bearing bracket 116 at a corresponding position, and the chopper knife gap automatic control device is configured to fasten the fixed bearing 139 coaxially with the adapter 137. According to claim 2, wherein the chopper knife body portion The motor 224 is coupled to the chopper knife base 222, The motor 224 is connected to the motor fixed bearing housing 220, the knife spindle portion, and the rotary shaft 214 which is installed through the rotary shaft fixed bearing housing 215 in order. One side of the lower gear 208 of the upper gear 209 and the lower gear 208 is installed in parallel in the gear cover 225 and both ends are supported by the bearing (211, 203). Being fastened to, The other side of the upper gear 209 and the lower gear 208 is configured to be fastened to the upper chopper knife 213 and the lower chopper knife 212, respectively.

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