JP2012246063A - Belt cleaning device and continuous furnace - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a belt cleaning device capable of removing dirt of a mesh belt without requiring washing water.SOLUTION: This belt cleaning device 200 is formed in an endless belt shape, and cleans a mesh belt 210 for mounting a workpiece W and conveying the same. Further, the belt cleaning device 200 includes a first column brush member 220 and a second column brush member 230. The first column brush member 220 is arranged in a region where the workpiece W is not mounted, and in slide contact with the mounting surface of the workpiece W in the mesh belt 210. The second column brush member 230 is disposed opposite the first column brush member 220, and in slide contact with the non-mounting surface of the workpiece W in the mesh belt 210.

Description

  The present invention relates to a belt cleaning device for removing dirt on a mesh belt and a continuous furnace equipped with the belt cleaning device.

  As for the continuous heat treatment furnace, the type of the heat treatment furnace is classified according to the method of conveying the object to be processed, and a mesh belt type heat treatment furnace can be given as an example (see, for example, Patent Document 1).

  The mesh belt type heat treatment furnace has a configuration in which an object to be processed is mounted on a mesh belt and conveyed to an outlet through a heating chamber and a cooling chamber. Therefore, the mesh belt is contaminated with abrasion powder of the mesh belt, components generated from the object to be processed, and oxidized scale of the mesh belt.

  Therefore, in order to remove dirt on the mesh belt, a technique for ultrasonic cleaning by passing the mesh belt through the cleaning water in the cleaning water tank has been developed.

JP 2009-014227 A

  However, when the mesh belt is subjected to ultrasonic cleaning, it is necessary to supply and drain cleaning water, but this may not be possible due to factory equipment.

  In view of the above problems, an object of the present invention is to provide a belt cleaning device capable of removing dirt on a mesh belt without requiring cleaning water.

  The belt cleaning device of the present invention is formed in an endless shape and cleans a mesh belt for loading and transporting an object to be processed. The belt cleaning device of the present invention includes a first brush member and a second brush member. The first brush member is disposed in a region where the object to be processed is not mounted, and is in sliding contact with the mounting surface of the object to be processed in the mesh belt. The second brush member is disposed to face the first brush member and is in sliding contact with the non-mounting surface of the object to be processed in the mesh belt.

  In this configuration, the mesh belt can be cleaned by simply bringing the first brush member into sliding contact with the surface of the mesh belt on which the workpiece is mounted and merely bringing the second brush member into sliding contact with the surface of the mesh belt on which the workpiece is not mounted. Can be removed. Therefore, it is possible to remove the dirt on the mesh belt without requiring cleaning water.

  The belt cleaning device according to the present invention can remove dirt on the mesh belt without the need for washing water.

It is a figure which shows the structure of the continuous furnace provided with the belt cleaning apparatus which concerns on 1st Embodiment of this invention. It is a figure which shows the structure of the belt cleaning apparatus which concerns on 1st Embodiment of this invention. It is a figure which shows the modification of FIG. It is a figure which shows the structure of the belt cleaning apparatus which concerns on 2nd Embodiment of this invention. It is a figure which shows the structure of the belt cleaning apparatus which concerns on 3rd Embodiment of this invention. It is a figure which shows the structure of the belt cleaning apparatus which concerns on 4th Embodiment of this invention. It is a figure which shows the structure of the belt cleaning apparatus which combined several embodiment of this invention.

  Hereinafter, a belt cleaning device according to an embodiment of the present invention will be described in detail with reference to the drawings.

  First, a first embodiment of the present invention will be described.

  FIG. 1 is a diagram illustrating a configuration of a continuous furnace 100 including a belt cleaning device 200 according to the first embodiment of the present invention.

  The continuous furnace 100 includes a heating chamber 110, a cooling chamber 120, table rollers 130 and 140, a free roller 150, a belt driving mechanism 160, a belt cleaning device 200, and a mesh belt 210.

  The heating chamber 110 heats the workpiece W and heats the workpiece W by maintaining the room at about 900 degrees. The cooling chamber 120 is water-cooled or air-cooled, and the inside is composed of a neutral atmosphere. The cooling chamber 120 cools the workpiece W heated by the heating chamber 110.

  The table rollers 130 and 140 stretch an endless mesh belt 210. The free roller 150 rotates following the rotation of the mesh belt 210, and forms a play 211 of the mesh belt 210 with the pusher roller 163 described later.

  The belt drive mechanism 160 includes a drive drum 161, pusher rollers 162 and 163, a chain 164, and a drive motor 165. The driving drum 161 winds the mesh belt 210 around its outer peripheral portion and is rotated by the driving motor 165 to rotate the mesh belt 210. The pusher roller 162 guides the mesh belt 210 to the drive drum 161 while applying tension to the mesh belt 210.

  The pusher roller 163 forms a play 211 of the mesh belt 210 with the free roller 150. The chain 164 is made of metal as an example, and stretches the drive drum 161 and the drive motor 165. The drive motor 165 drives the drive drum 161 via the chain 164. The drive motor 165 rotates the mesh belt 210 in the arrow 212 direction by rotating the chain 164 in the arrow 166 direction. Therefore, the workpiece W mounted on the mesh belt 210 moves in the direction of the arrow 170, that is, from the heating chamber 110 to the cooling chamber 120.

  The belt cleaning device 200 is a device for cleaning the endless mesh belt 210 that has passed through the heating chamber 110 and the cooling chamber 120. Details thereof will be described later.

  As an example, the mesh belt 210 is made of a metal having high corrosion resistance and high heat resistance. This is because the mesh belt 210 needs to pass through the heating chamber 110 on which the workpiece W is mounted and maintained at a high temperature as described above. The mesh belt 210 is formed in an endless shape, and is a belt for mounting and transporting the workpiece W.

  As described above, the mesh belt 210 forms the play 211 between the free roller 150 and the pusher roller 163. Since the mesh belt 210 passes through the heating chamber 110 maintained at a high temperature and then passes through the cooling chamber 120, the mesh belt 210 itself expands and contracts. Therefore, the play 211 is formed to correspond to the expansion and contraction of the mesh belt 210.

  FIG. 2 is a diagram illustrating a configuration of the belt cleaning device 200 according to the first embodiment of the present invention.

  The belt cleaning device 200 includes a first cylindrical brush member 220 and a second cylindrical brush member 230.

  The first cylindrical brush member 220 is disposed in a region where the workpiece W is not mounted, and is in sliding contact with the mounting surface of the workpiece W on the mesh belt 210. The second cylindrical brush member 230 is disposed to face the first cylindrical brush member 230 and is in sliding contact with the non-mounting surface of the workpiece W in the mesh belt 210. In addition, the area | region where the to-be-processed object W is not mounted is the area | region 180 shown in FIG.

  In the present embodiment, the first cylindrical brush member 220 and the second cylindrical brush member 230 are used in a state where the central axis is fixed. That is, the first cylindrical brush member 220 and the second cylindrical brush member 230 are used as fixed brushes. If the fixed brush has a cylindrical shape, if the sliding contact surface with the mesh belt 210 has deteriorated, the other portion of the cylindrical shape may be used on the sliding contact surface, so it can be used for a long time as a fixed brush. is there.

  In addition, as shown in FIG. 3, you may use a plane brush as a fixed brush. That is, the first flat brush member 220A is disposed in a region where the workpiece W is not mounted, is in sliding contact with the mounting surface of the workpiece W on the mesh belt 210, and the second flat brush member 230A is the first plane. It arrange | positions facing brush member 220A and slidably contacts the non-mounting surface of the to-be-processed object W in the mesh belt 210.

  In this configuration, the first cylindrical brush member 220 (first flat brush member 220A) is slidably brought into contact with the mounting surface of the workpiece W on the mesh belt 210, and the second cylindrical brush member 230 (second flat brush member 230A) is brought into contact. The dirt on the mesh belt 210 can be removed only by sliding the mesh belt 210 on the non-mounting surface of the workpiece W. Therefore, the dirt of the mesh belt 210 can be removed without requiring cleaning water.

  Next, a second embodiment of the present invention will be described. In each of the embodiments after the second embodiment, the description overlapping with that of the first embodiment is omitted.

  FIG. 4 is a diagram showing a configuration of a belt cleaning device 200 according to the second embodiment of the present invention.

  The 1st cylindrical brush member 221 and the 2nd cylindrical brush member 231 of this embodiment are comprised rotatably. The belt cleaning device 200 further includes a drive mechanism 240 for driving the first cylindrical brush member 221 and the second cylindrical brush member 231 to rotate about the central axis thereof.

  The drive mechanism 240 includes a chain 241 and a drive motor 242. The chain 241 is formed in an endless shape, and is made of metal as an example. The chain 241 is stretched over the sprocket 242A of the drive motor 242, the sprocket 222 of the first cylindrical brush member 221 and the sprocket 232 of the second cylindrical brush member 231, and meshes with the sprocket 242A, sprocket 222 and sprocket 232. . The drive motor 242 transmits driving force to the first cylindrical brush member 221 and the second cylindrical brush member 231 via the chain 241.

  In the present embodiment, the chain 241 receives the driving force from the driving motor 242 and rotates in the arrow 243 direction. Accordingly, the first cylindrical brush member 221 rotates in the arrow 223 direction, and the second cylindrical brush member 231 rotates in the arrow 233 direction. That is, the drive mechanism 240 rotates the first cylindrical brush member 221 and the second cylindrical brush member 231 in the same direction so that the outer peripheral surfaces of the first cylindrical brush member 221 and the second cylindrical brush member 231 are meshed with the mesh belt 210. Slide.

  Further, since the mesh belt 210 moves in the direction of the arrow 212, the first cylindrical brush member 221 rotates in the direction opposite to the moving direction of the mesh belt 210 on the sliding contact surface with the mesh belt 210, and the second cylindrical brush member. 231 rotates in the same direction as the moving direction of the mesh belt 210 on the sliding contact surface with the mesh belt 210. The peripheral speed of the second cylindrical brush member 231 and the moving speed of the mesh belt 210 are different.

  On the surface of the mesh belt 210 on which the workpiece W is mounted, dirt such as abrasion powder of the mesh belt, components generated from the workpiece W, and oxidized scale of the mesh belt are likely to adhere. Accordingly, since the first cylindrical brush member 221 rotates in the direction opposite to the moving direction of the mesh belt 210 on the sliding contact surface with the mesh belt 210, the mounting surface of the workpiece W on the mesh belt 210 is efficiently cleaned. be able to.

  Further, the non-mounting surface of the object to be processed W in the mesh belt 210 is less contaminated with components generated from the object to be processed W and dirt such as oxide scale of the mesh belt as much as the mounting surface of the object to be processed W. Accordingly, since the second cylindrical brush member 231 rotates in the same direction as the moving direction of the mesh belt 210 on the sliding contact surface with the mesh belt 210, the non-mounting surface of the workpiece W on the mesh belt 210 is appropriately cleaned. The deterioration of the second cylindrical brush member 231 can be suppressed more than the deterioration of the first cylindrical brush member 221.

  In other words, in this configuration, the mesh belt 210 can be efficiently cleaned according to how easily the mesh belt 210 becomes dirty.

  Next, a third embodiment of the present invention will be described. In addition, in this embodiment, the description which overlaps with 2nd Embodiment is abbreviate | omitted.

  FIG. 5 is a diagram showing a configuration of a belt cleaning device 200 according to the third embodiment of the present invention.

  In the present embodiment, the diameters of the sprocket 222 of the first cylindrical brush member 221 and the sprocket 234 of the second cylindrical brush member 231 are different. Specifically, the diameter of the sprocket 222 is smaller than the diameter of the sprocket 234. Therefore, in this configuration, the drive mechanism 240 rotates the first cylindrical brush member 221 at a higher speed than the second cylindrical brush member 231.

  In this configuration, the first cylindrical brush member 221 rotates at a high speed in the direction opposite to the moving direction of the mesh belt 210 at the sliding contact surface with the mesh belt 210, so that the mounting surface of the workpiece W on the mesh belt 210 is more efficient. Can be cleaned.

  Next, a fourth embodiment of the present invention will be described.

  FIG. 6 is a diagram showing a configuration of a belt cleaning device 200 according to the fourth embodiment of the present invention.

  The belt cleaning device 200 includes a case 250 and a suction unit 260.

  The case 250 covers the first cylindrical brush member 220 and the second cylindrical brush member 230. The suction unit 260 sucks dust in the case 250.

  The suction unit 260 includes a suction blower 261, a duct 262, and a dust collection filter 263. The suction blower 261 is a device that generates a suction force. The duct 262 connects the case 250 and the suction blower 261. The dust collection filter 263 is provided in the duct 262 and collects dust moving from the case 250 to the suction blower 261.

  In this configuration, the case 250 covers the first cylindrical brush member 220 and the second cylindrical brush member 230, so that the dust of the mesh belt 210 removed by the first cylindrical brush member 220 and the second cylindrical brush member 230 is surrounded by the case 250. It is possible to prevent scattering. Further, the suction part 260 sucks the dust in the case 250, so that the dust can be prevented from being accumulated in the case 250.

  So far, the configuration of the present invention has been described from the first embodiment to the fourth embodiment. However, the configuration of the present invention is not limited to each of the first embodiment to the fourth embodiment. For example, as shown in FIG. 7, the present invention can be applied by combining a plurality of embodiments.

  Finally, the description of the above-described embodiment is to be considered in all respects as illustrative and not restrictive. The scope of the present invention is shown not by the above embodiments but by the claims. Furthermore, the scope of the present invention is intended to include all modifications within the meaning and scope equivalent to the scope of the claims.

W-processed object 100-continuous furnace 110-heating chamber 120-cooling chamber 200-belt cleaning device 210-mesh belt 220-first cylindrical brush member 220A-first flat brush member 221-first cylindrical brush member 230-first 2 cylinder brush member 230A-2nd plane brush member 231-2nd cylinder brush member 240-drive mechanism 250-case 260-suction part

Claims (6)

A belt cleaning device for cleaning a mesh belt that is formed in an endless shape and carries a workpiece to be conveyed,
A first brush member that is disposed in a region where the object to be processed is not mounted and is in sliding contact with a mounting surface of the object to be processed in the mesh belt;
A second brush member disposed opposite the first brush member and in sliding contact with a non-mounting surface of the workpiece in the mesh belt;
A belt cleaning device comprising: The first brush member and the second brush member have a cylindrical shape,
A drive mechanism for rotating the first brush member and the second brush member around a central axis thereof;
The said drive mechanism slides the outer peripheral surface of the said 1st brush member and the said 2nd brush member on the said mesh belt by rotating the said 1st brush member and the said 2nd brush member in the same direction. A belt cleaning device according to claim 1. The belt cleaning device according to claim 2, wherein the first brush member is rotated in a direction opposite to a moving direction of the mesh belt by the driving mechanism. The belt cleaning device according to claim 2, wherein the drive mechanism rotates the first brush member at a higher speed than the second brush member. A case covering the first brush member and the second brush member;
A suction part for sucking dust in the case;
The belt cleaning device according to claim 1, further comprising: A mesh belt that is formed in an endless shape for carrying and transporting a workpiece;
A heating chamber for performing a heat treatment on the workpiece;
A cooling chamber for cooling the object to be processed that has passed through the heating chamber;
The belt cleaning device according to any one of claims 1 to 5, for cleaning the mesh belt that has passed through the heating chamber and the cooling chamber;
A continuous furnace.

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