JPS637908B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a hairline processing device used by metal fabricators to remove scratches. In detail, scratches can be removed from the material by placing an abrasive band on the contact roller and tension roller for removing scratches and rotating at high speed. This invention relates to a device that can perform hairline processing on materials when fed.

The present inventor has previously proposed a hairline processing device related to Japanese Patent Application No. 57-234391, which consists of a material feeding member 1 for carrying and transporting a workpiece, and a contact member 2 for contacting the workpiece. It is equipped with an abrasive band 3 that is pressed against the abrasive grains to form lines on the workpiece, and means 4 and 5 for feeding the abrasive belt 3 at a slow speed in order to renew the abrasive grains. When the workpiece is supplied, the workpiece is pressed against the abrasive grains by the contact member and passes under the abrasive band, and the abrasive grains automatically create a hairline process in which countless thin lines are created on the surface of the workpiece. If combined with an automatic material supply device that supplies a large number of materials one after another, hairline processing will be performed continuously without any personnel, making it possible to significantly reduce processing costs by saving labor and increasing efficiency. Also, since this device uses a material feeding member to transport the workpiece, it can reliably transport the workpiece at a constant speed parallel to its axis, and the contact pressure of the abrasive band against the material can be reduced. In order to maintain a constant value, the abrasive grains are also updated sequentially, and the processing conditions are automatically stabilized, resulting in uniform and beautiful processing, which has the unique effect of producing products with extremely high commercial value. It is.

However, among the materials that require hairline processing,
Some products have scratches on their surfaces during processing such as cutting and drilling, and these scratches are often not removed by hairline processing, so a sander for removing scratches must be installed separately from the hairline processing equipment. The point was hot.

The present invention has been made in order to solve the above-mentioned problems, and a hairline processing device is provided with a tension roller corresponding to a contact roller, and the abrasive band for creasing is removed from the tension roller and the contact roller. It is an object of the present invention to provide a hairline processing device that can also remove scratches from a workpiece by installing an abrasive band for removing scratches and rotating it at high speed.

Next, an example of implementation of the apparatus related to the present invention will be explained based on the drawings.

In Figures 2 and 3 of the drawings, 1 is a machine base, on one side of the top surface of which a pair of rollers 2 and 3 are supported by shafts 4 and 5, and a belt 6 for feeding the material is stretched around the rollers 2 and 3. The material conveying belt 6 is rotated in the direction indicated by the arrow in FIG. 2 by transmitting the rotation of the reducer motor 7 to the rear roller 3. Further, since the material conveying belt 6 is required to be strong and have high frictional resistance, the type of material to be processed 8 can be selected from a rubber or plastic belt with a fabric core, or an abrasive belt made of cloth with abrasive powder bonded to it. An appropriate one should be selected and used depending on the processing conditions and processing conditions.It is desirable that the material conveying belt 6 can be easily replaced if it becomes worn or damaged. Of the bearing plates 9 and 9' to be supported, the seat 11 of the screw 10 that fixes the left end bearing plate 9' to the machine base 1 is removable, and the seat 11 of the screw 10 is removable.
When the catch seat 11 is removed by loosening the belt 0, the rollers 2 and 3 become cantilevered so that the material conveying belt 6 can be inserted and removed from the side. Furthermore, since it is necessary to apply sufficient tension to the material conveying belt 6, an adjusting screw 12 is attached to the shaft 4 supporting the driven roller 2, as shown in FIG.
are screwed together, and the roller 2 is advanced or retracted by operating the adjustment screw 12, or is advanced or retracted using a spring, cylinder, or other reciprocating means, and the tension of the material conveying belt 6 is adjusted.
Allow relaxation. In FIG. 2, reference numeral 13 denotes a support member for the material conveying belt 6, which is in the form of a plate and is supported by the bearing plates 9, 9', and its surface is plated or coated with a member to reduce frictional resistance with the material conveying belt 6. , or by attaching a number of rollers (not shown in the drawings) to the bearing plates 9, 9' and rotating them to follow the material conveying belt 6 to reduce frictional resistance. A portion of the member directly below the contact member described later is applied with strong pressure by the contact member, and the material conveying belt 6
Because the parts rub against each other, the abrasion is particularly severe, so this part should be made of a particularly hard material or treated with surface hardening to prevent wear and tear. In FIGS. 2 and 3 of the drawings, reference numeral 14 denotes a guide installed on the right side of the machine base 1 so as to be perpendicular to the material conveying belt 6, and is parallel to the longitudinal direction of the material conveying belt 6. An elevating plate 16 having a support portion 15 for the polishing belt is engaged with the elevating plate 16, and a feed screw 17 is screwed into the elevating plate 16. Reference numeral 18 denotes a handle for rotating the feed screw 17, which is attached to a shaft 19 on one side of the machine base 1, and has a bevel gear 21 at the other end of the shaft 19 that meshes with a bevel gear 20 attached to the feed screw 17. Fix it and
When this handle 18 is operated, the feed screw 17 rotates, and the elevating plate 16 is raised and lowered. In FIG. 2, reference numerals 22 and 22 denote elbow bodies that project above the abrasive belt support 15 above the material conveying belt 6, and the roller support frame 24,
24 is suspended, the left and right seesaw arms 25, 25 are supported by the support frames 24, 24, respectively, and a pair of front and rear restraining rollers 26, 26 are pivotally supported between the seesaw arms 25, 25. be. Reference numerals 27, 27 denote pressure springs for the restraining rollers 26, 26 inserted in the front and rear portions between the elbow body 22 and the seesaw arm 25, whose elasticity is adjusted by adjustment screws 28, 28, and is restrained. By adjusting the pressing force of the workpiece 8 against the material feeding belt 6 by the rollers 26, 26,
A necessary frictional force is generated between the workpiece 8 and the material conveying belt 6. Reference numerals 29 and 30 denote a supply reel and a take-up reel for the abrasive belt 31, which are provided on the upper part of the abrasive belt support 15 so as to overhang onto the material feeding belt 6. A brake device 32 is provided, and a take-up reel 3
0 rotates passively from the pinch roller described later,
Wind up the polishing band 31. Since this abrasive belt 31 applies uniform creasing to hard metal, it is necessary that the abrasive grains are strong and have strong adhesion, and that the grain size of the abrasive grains is also uniform. Material 8
Dry processing can be done depending on the type of material, but wet processing produces better results, so in this case water and oil resistant materials are used. Reference numeral 33 denotes a contact roll, which is pivotally supported between the front and rear holding rollers 26 and 26 and presses the middle of the polishing belt 31 extending from the supply reel 29 to the take-up reel 30 to the workpiece 8; A hard rubber or plastic lining 34 is applied, and the hardness of this lining 34 needs to be changed depending on the type of workpiece material, for example, a soft one for aluminum and a hard one for stainless steel. In some cases, unlined steel rolls are used. For this reason, it is preferable to prepare several types of contact rolls 33 and change them each time the material type of the workpiece 8 changes, so that the support shaft 35 of the contact roller 33 is securely fixed on the polishing band support 15 side. However, the tip side is supported by a removable bearing 36, so that the contact roller 33 can be easily removed. Reference numerals 37 and 38 denote a capstan roller and a pinch roller for pinching and transferring the abrasive belt 31. The capstan roller 37 is supported by a shaft 39, and its surface is rubbed by the abrasive grains of the abrasive belt 31. The pinch roller 38 is supported by an arm 41 that swings around a shaft 40, and the pinch roller 38 is supported by an arm 41 that swings around a shaft 40. This arm 41
When the fluid cylinder 43 is pressurized, it is strongly pressed against the capstan roller 37, and when the pressure from the cylinder 43 is removed, it is returned to the spring 44 and separated from the capstan roller 37. Furthermore, both rollers 37 and 38 are interlocked by interlocking gears not shown in the drawings, and the rotation of the motor 45 is reduced and transmitted to one of them by a reducer 46 with a large reduction ratio, thereby reducing the pinch roller 38 and the capstan roller. 37 is rotated in the opposite direction at a slow speed so that the abrasive grains worn out by the creasing of the abrasive band 31 are sequentially renewed. Reference numeral 47 denotes a tension roll disposed above the contact roller 33, that is, between the supply reel 29 and the take-up reel 30 of the creasing abrasive band 31;
The tension roller 47 is located at a position that does not interfere with the tensioning of the tension roller 47.
An endless polishing band 48 for removing scratches is stretched between the contact roller 33 and the contact roller 33, and in this case, a belt or chain 52 is attached to the driven wheel 49 fixed to the support shaft 35 of the contact roller 33 and the transmission shaft 51 of the motor 50. The grinding band 48 is rotated at high speed to grind the workpiece 8. The grinding band 48 can be selected from those for general metal processing depending on the material type. be.

In the apparatus configured as described above, when hairline processing is performed, the abrasive belt 31 and material feed belt 6 are selected according to the material of the workpiece 8, and the distance between the material feed belt 6 and the contact roller 33 is adjusted. After adjusting it according to the thickness of the workpiece material 8, the material feeding belt 6 is rotated by the motor 7 at a feeding speed according to the material.
While feeding the polishing belt 31 at a very slow speed to the extent that the abrasive particles are renewed by the pinch roller 38 and the capstan 37, which are transmitted through the rotation of the motor 45 after being decelerated by the speed reducer 46, the polishing belt 31 is positioned on the material conveying belt 6 using a ruler. When the workpiece 8 is supplied with the orientation determined, the workpiece 8 is pressed against the material conveying belt 6 by the presser roller 26, and is transported by the material conveying belt 6 straight in its axial direction. Then, the contact roll 33 applies the polishing belt 3 to the workpiece 8.
1 and the ground particles are bitten into the surface of the workpiece 8, so as the surface of the workpiece 8 progresses, countless parallel thin lines, that is, hairlines, are machined. As a result of this processing, the abrasive particles on the abrasive band 31 are worn and damaged, but as mentioned above, the abrasive band 31 is fed at a very low speed by the pinch roller 38 and the capstan roller 37, and is wound up on the take-up reel to remove the abrasive particles. As a result, the workpiece 8 is subjected to a uniform hairline process over its entire length, and when the process is completed, the workpiece 8 is sent to the latter by the feed belt 6.

When removing scratches from the workpiece 8, remove the creasing polishing band 31 from the contact roll 33, and apply an endless scratch removal polishing band to the contact roll 33 and tension roll 47. Obi 48
A belt or chain 52 is hung between the driven wheel 49 provided on the support shaft 35 of the contact roll 33 and the transmission wheel 51 of the motor 50, and the abrasive band 48 is rotated at high speed to remove scratches onto the material conveying belt 6. When the workpiece 8 is supplied with the attached surface corresponding to the polishing belt 48, the workpiece 8 is pressed against the material conveying belt 6 by the presser roller 26, and the polishing belt 48 is transferred. Then, the polishing belt 48 rotating at high speed grinds the surface of the workpiece 8, and in the case of shallow scratches, they are removed in one go. However, if the scratches are deep, they may not be removed in one go, so in this case, if the workpiece 8 is ground twice or more, the scratches on the workpiece 8 can be completely removed.

Once the scratches on the workpiece 8 have been removed in this manner, the polishing band 48 for removing scratches is removed, the polishing band 38 for scoring is stretched, and hairline processing is performed.

In the apparatus of the present invention, an abrasive band for creasing is placed on a contact roll, and the workpiece is fed under the abrasive band by a feed belt while the abrasive band is being fed at a slow speed. A hairline process is applied to the surface of the grain, in which many parallel lines are created, but when the polishing band for making the lines is removed,
An abrasive band for removing scratches is applied to the contact roll and tension roller, and while the abrasive band is rotated at high speed, the scratched workpiece is fed under it by the feed belt, and the surface of the workpiece is ground. Since scratches can be removed by removing scratches, using this device eliminates the need for a sander for scratch removal, reducing the equipment cost and space required for conventional equipment, making it extremely economical, and reducing the need for sharpening belts. Because the functions of hairline processing and scratch removal can be exchanged simply by replacing the parts, it has the unique effect of providing good workability and extremely efficient processing.

[Brief explanation of the drawing]

FIG. 1 is a front view of a conventional hairline processing device.
FIG. 2 is a front view showing an example of the implementation of the hairline processing device according to the present invention. Figure 3 is a plan view of the same as above. FIG. 4 is an explanatory diagram of hairline processing using the same device.
FIG. 5 is an explanatory diagram of the scratch removal process. In the figure, 8 is a workpiece, 6 is a material feeding member, 33 is a contact roll, 31 is an abrasive band for creasing, 37, 3
Reference numeral 8 is a slow-speed feeding means, 47 is a tension roller, and 48 is an abrasive band for removing scratches.

Claims (1)

[Claims] 1 A material feeding member that carries and transports a workpiece, and a member that is pressed against the workpiece by a contact roller,
an abrasive band for creasing a workpiece with abrasive grains; a means for feeding the abrasive belt at a slow speed to renew the abrasive grains; and when the abrasive belt for creasing is removed;
A hairline processing device for removing scratches, characterized in that it is provided with an abrasive band that is stretched between the contact roller and a tension roller disposed above the contact roller and rotated at high speed to remove scratches from the material.