JP2016020021A - Cutting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve safety of work as well as accuracy of a cutting surface and prevent a blade from jamming.SOLUTION: A cutting device 2 comprises: a table 3 on which a fed material M to be cut is placed and a slit 5 is formed in a width direction; a work clamp 4, which is provided above the table 3 in a vertically movable way, for pressing and holding the material M to be cut placed on the table 3 during cutting work of the material M to be cut; a cutter 20 for cutting the material M to be cut on the slit 5 by rotating a rotary blade 22 by a motor 21 and projecting the rotary blade on the slit 5; and a reciprocating mechanism 23 for reciprocating the cutter 20 along the slit 5. The cutter 20 and the reciprocating mechanism 23 are disposed below the table 3. A deposit removal device 30 for removing deposit adhered to the rotary blade 22 and a cold-air blowing device 35 for blowing cold air to the rotary blade 22 constantly to prevent the adhesion of the deposit are provided at one of both ends E1, E2 of a passage where the cutter 20 is reciprocated by the reciprocating mechanism 23.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cutting apparatus for cutting a material to be cut such as rubber or a synthetic resin sheet.

  In general, a cutting device for cutting a material to be cut such as rubber or a synthetic resin sheet has a cutting device having a rotary blade disposed above the table so as to be movable in the width direction of the table, and is sent to the table and placed. The cut material is cut by moving the cutting device in the width direction (see, for example, Patent Document 1 and Patent Document 2).

Japanese Patent Laid-Open No. 2003-211388 Japanese Patent No. 2835573

  However, in the conventional cutting device according to the above configuration, since the cutting device is arranged on the table, the rotating rotary blade is exposed in front of the operator at the time of work, and attention should be paid to ensuring safety. There is a problem that you have to pay. In the case of a cutting device using a rotary blade, in the case of rubber or a synthetic resin with a low heat welding temperature, when the rotary blade becomes hot due to frictional heat generated when the rotary blade rotates at high speed, the cut surface of the workpiece is cut. There are problems of non-uniformity and blade clogging.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a cutting device that performs work safely and does not clog the blades.

  The cutting apparatus according to claim 1 of the present invention is provided with a table on which a material to be cut is placed and slits are formed in the width direction, and is provided above the table so as to be movable up and down. , A holding unit that presses and holds the workpiece placed on the table and a rotary blade that can pass through the slit, and the driving unit rotates the rotary blade to cut the workpiece on the slit. And a reciprocating means for reciprocating the rotating blade of the cutting means along the slit, the rotating blade protrudes above the slit of the table, and the cutting means and the reciprocating means are disposed below the table. It is a feature.

  In the cutting device according to claim 1 of the present invention, a table in which a material to be cut is placed and a slit is formed in the width direction is provided so as to be movable up and down above the table. , A holding unit that presses and holds the workpiece placed on the table and a rotary blade that can pass through the slit, and the driving unit rotates the rotary blade to cut the workpiece on the slit. And a reciprocating means for reciprocating the rotary blade of the cutting means along the slit, the rotating blade is projected on the slit of the table, and the cutting means and the reciprocating means are disposed below the table. In the cutting operation, the operator is less likely to contact the rotary blade, and the safety of the operation is improved.

  In the cutting device according to claim 2 of the present invention, the holding means is disposed along the extending direction of the slit, and has a lower surface pressed against the material to be cut placed on the table. A work clamp with a gap formed along it, and a lifting device that moves the work clamp up and down and holds it in a predetermined position, and the cutting means includes a rotary blade drive motor and an output shaft of the motor. A reciprocating means, a guide disposed along the slit, a movable member attached to the motor and reciprocating the guide, and a part of the movable member Is locked and connected to one of the sprockets, and the timing belt is reciprocated at a desired stroke by being driven forward and reverse. It is characterized in that it has structure and a traveling motor for.

  According to a third aspect of the present invention, there is provided a cutting device which is connected to the drive control device so as to be able to transmit the drive to the cut material feed side of the table, and a feed roller which feeds the cut material to the table with a desired feed amount. A feed conveyor connected to the roller and feeding the material to be cut to the feed roller is provided.

  According to a fourth aspect of the present invention, the cutting material to be cut is fed to the side of the table to be cut, and the cut material to be cut is discharged to the outside after the cutting material is cut. It is characterized by having a discharge roller.

  The cutting device according to claim 5 of the present invention is provided with a table on which the material to be cut is placed and slits are formed in the width direction, and is provided above the table so as to be movable up and down, at the time of cutting work of the material to be cut , A holding unit that presses and holds the workpiece placed on the table and a rotary blade that can pass through the slit, and the driving unit rotates the rotary blade to cut the workpiece on the slit. And reciprocating means for reciprocating the rotary blade of the cutting means along the slit, and removing the adhering matter adhering to the rotary blade on at least one of both ends of the path reciprocated by the reciprocating means. At least one of the adhering matter removing means or the adhering preventing means for preventing the adhering matter from adhering to the rotary blade is provided.

  In the cutting device according to claim 5 of the present invention, a table in which a material to be fed is placed and a slit is formed in the width direction is provided so as to be movable up and down above the table. , A holding unit that presses and holds the workpiece placed on the table and a rotary blade that can pass through the slit, and the driving unit rotates the rotary blade to cut the workpiece on the slit. And reciprocating means for reciprocating the rotary blade of the cutting means along the slit, and removing the adhering matter adhering to the rotary blade on at least one of both ends of the path reciprocated by the reciprocating means. By providing at least one of the adhering material removing means or the adhering preventing means for preventing the adhering material from adhering to the rotary blade, the material to be cut of rubber or a synthetic resin having a low heat welding temperature is cut. Even if it is possible to remove the chips adhered to the rotating blade, also, it is possible to prevent adhesion of deposits to the rotary blade, without causing blade clogging, the workability is improved efficiency.

  In the cutting device according to claim 6 of the present invention, the deposit removing means is arranged to face both side surfaces of the blade portion of the rotary blade that has reached the position of the path end, and is attached to and detached from the brush holder. And a brush main body which is freely attached and is brought into contact with a blade portion where the tip of the hair-like protrusion rotates.

  According to a seventh aspect of the present invention, there is provided a cutting apparatus according to claim 7, wherein one end is connected to the cold air supply means, and the other end is ejected toward the side surface of the rotary blade in conjunction with the reciprocating motion of the rotary blade. And a cool air blowing device having a cold air blowing port for cooling the rotary blade.

  In the cutting device according to claim 8 of the present invention, the adhesion preventing means is provided at one end of both ends of the reciprocating path, one end communicates with the lubricating liquid supply means, and the other end lubricates via the internal passage. Leakage outlets for leaking liquid to the outside are formed, and the lubricating liquid supply device is arranged so as to face both side surfaces of the blade portion of the rotary blade that has reached the position of the path end. And an infiltrating body supporting member that leads to the infiltrating body infiltrated with the lubricating liquid leaked from the leak outlet and contacts the blade part rotating the one surface of the infiltrating body. Is applied.

  The cutting device according to claim 9 of the present invention is characterized in that the cutting means and the reciprocating means are arranged below the table.

  In the cutting apparatus according to the first aspect of the present invention, a table on which a material to be cut is placed and a slit is formed in the width direction is provided, and can be moved up and down above the table. At this time, holding means for pressing and holding the material to be cut placed on the table, and the rotary blade is arranged to pass through the slit, and the rotary blade is driven to rotate by the driving means to cut the material to be cut on the slit. Since the cutting means and the reciprocating means for reciprocating the cutting blade of the cutting means along the slit are provided, the rotating blade is projected on the slit of the table, and the cutting means and the reciprocating means are disposed below the table. The rotating blade does not touch the operator, and the safety of the work can be improved.

  In the cutting device according to the second aspect of the present invention, a table on which the material to be cut is placed and slits are formed in the width direction, and provided to be movable up and down above the table. At this time, holding means for pressing and holding the material to be cut placed on the table, and the rotary blade is arranged to pass through the slit, and the rotary blade is driven to rotate by the driving means to cut the material to be cut on the slit. Cutting means, and reciprocating means for reciprocating the rotary blade of the cutting means along the slit, and deposits adhering to the rotary blade are attached to at least one of both ends of the path reciprocated by the reciprocating means. Since at least one of the deposit removing means for removing or the deposit preventing means for preventing the deposit from adhering to the rotary blade is provided, the occurrence of clogging of the blade is suppressed, work efficiency is improved, and the cut surface It is possible to improve the accuracy of.

FIG. 1 is a front view of a cutting device according to an embodiment of the present invention. (Example 1) FIG. 2 is a side view of a main part of the cutting device of FIG. FIG. 3 is a plan view of the cutting device of FIG. 4A and 4B are a schematic cross-sectional view of a main part of the cutting device of FIG. 1 and an explanatory view of a reciprocating mechanism, respectively. FIG. 5 is an explanatory view showing the reciprocating motion of the rotary blade. FIG. 6 is an explanatory diagram of a driving device that drives the rotary blade. FIG. 7 is an explanatory view showing the deposit removal device and the cold air blowing device of the cutting device of FIG. FIG. 8 is an explanatory view showing a lubricating liquid coating device of the cutting device of FIG. FIG. 9 is an explanatory view showing a place where the deposit removing device, the cold air spraying device of FIG. 7 and the lubricating liquid coating device of FIG. 8 are attached. (A) thru | or (G) of FIG. 10 is explanatory drawing which shows the cutting process of the to-be-cut material by the cutting device of FIG. FIGS. 11A and 11B are a schematic cross-sectional view of a main part of a cutting device according to a modification of one embodiment of the present invention and an explanatory view of a reciprocating mechanism, respectively. (Example 2)

  With a simple configuration, the purpose of improving work safety and work efficiency is provided with a table on which the material to be cut is placed and a slit formed in the width direction, and a vertically movable table. When cutting the workpiece, the workpiece clamp that presses and holds the workpiece placed on the table and the rotary blade is driven to rotate by the motor so that the workpiece is projected on the slit. A cutter for cutting, and a reciprocating mechanism for reciprocating the cutting device along the slit. The cutting device and the reciprocating mechanism are arranged below the table, and the path is reciprocated by the reciprocating mechanism. At least one of the deposit removal mechanism for removing deposits adhering to the rotary blade and the adhesion prevention mechanism for blocking deposit adherence to the rotary blade is provided on at least one of them. It was realized by.

  Hereinafter, a cutting device according to an embodiment of the present invention will be described with reference to the drawings. 1 to 3 are a front view, a side view, and a plan view, respectively, showing a cutting apparatus according to an embodiment of the present invention. The cutting device 2 includes a table 3 and a work clamp (holding means) 4 provided above the table 3 so as to be movable up and down. The material to be cut M is fed into the table 3 from the feeding direction (right side in FIG. 1). In almost the center of the table 3, a slit 5 is formed through the top and bottom in the width direction, that is, the direction perpendicular to the direction in which the workpiece M is fed into the table 3.

  The work clamp 4 includes a holding block 6 having a lower surface 6A formed flat at the bottom. The holding block 6 is formed so that the longitudinal direction substantially coincides with the width direction of the table 3, and the gap S is formed so as to coincide with the slit 5. The work clamp 4 is connected to an air cylinder (holding means, lifting device) (not shown) so as to be lifted up and down, and is held at a predetermined vertical position. That is, the work clamp 4 is moved up and down by an air cylinder (not shown) and presses the workpiece M placed on the table 3 in an adjustable manner on the lower surface 6A of the holding block 6 so as to hold the workpiece M. It has become. The work clamp 4 is held by the air cylinder so that its height can be adjusted. That is, the height from the table 3 is slightly displaced upward from the table 3 according to the thickness of the material M to be cut, and is held at a low level L1 that is held at the position and at a position higher than the low level L1. It is set to be a high level L2 (L1 <L2) (see FIGS. 10A to 10H). A feed conveyor 8 for feeding the material to be cut M to the table 3 via the feed roller 7 (upper roller 7A and lower roller 7B) is connected to the cut material feed side of the table 3. The feed roller 7 rotates the upper roller 7A and the lower roller 7B forward and backward by a drive control mechanism (not shown) so as to sandwich the material M to be cut that has been placed on the feed conveyor 8 and conveyed, and the slit 5 of the table 3. It is designed to send to the side. The amount to be fed is determined according to the rotation of the feed conveyor 7. The upper roller 7A is displaced up and down by an air cylinder (not shown).

  A discharge roller 9 (upper roller 9A and lower roller 9B) is provided on the delivery side (left side in FIG. 1) of the table 3 to sandwich the material to be cut M and send the material to be cut M after cutting to the outside. The discharge roller 9 is configured to rotate the upper roller 9A and the lower roller 9B forward and backward by a driving mechanism (not shown) so as to sandwich the cut material M and discharge it to the outside of the table 3. The upper roller 9A can be moved up and down by an air cylinder (not shown). On the downstream side of the discharge roller 9, a carry-out portion 10 in which a large number of carry-out rollers 11 are rotatably arranged is provided. The discharge unit 10 is configured to be inclined around the discharge roller 9 side, and the received material to be cut M is slid on the carry-out roller 11 and collected in a storage box (not shown).

  By the way, the cutting device 2 according to the present embodiment is configured to include a cutter 20 below the table 3. The cutter 20 includes a rotary blade drive motor (drive means) 21 and a rotary blade 22 that is connected to the drive shaft of the motor 21 and has an upper portion protruding on the slit 5 of the table 3. The rotary blade drive motor 21 is driven and controlled by a drive control device (not shown).

  As shown in FIGS. 4A and 4B, the cutting device 2 includes a reciprocating mechanism (reciprocating means) 23 that reciprocates the rotary blade 22 of the cutter 20 along the slit 5. The reciprocating mechanism 23 has a pair of guide bars 24 arranged below the table 3 along the slit 5 and a rotary blade driving motor 21 of the cutter 20 attached to the upper part, and is slidably attached to the guide bar 24. The slider (movable member) 25, the timing belt 28 which is locked by the engagement piece 26 attached to the lower end of the slider 25 and wound around the sprockets 27A and 27B at both ends, and the shaft hole of one sprocket 27A And a cutter running motor 29 that rotates the sprocket 27A forward and backward by a predetermined amount and reciprocates the timing belt 28 with a predetermined stroke (reciprocating path) St. A cover 12 that covers the outside of the rotary blade 22 is attached to the slider 25. The reciprocating mechanism 23 reciprocates the slider 25 at a desired stroke St (distance between positions E1 and E2) when the cutter travel motor 29 is rotationally driven in a forward / reverse direction by a drive control device (not shown), and travels forward. When the stroke reaches one end E2 from the stroke end E1, the operation is temporarily stopped. When the operator inputs a command signal to a drive control device (not shown), the stroke returns from the position of the other end E2 to the end E1. For this reason, the blade part 22A protruding upward from the slit 5 of the rotary blade 22 of the cutter 20 is reciprocated by a distance corresponding to the set stroke St (distance between the positions E1 and E2). The stroke St is set in advance to be larger than the dimension in the width direction (perpendicular to the feeding direction) of the material M to be cut.

  For this reason, when the material M to be cut is fed into the table 3 from the feed conveyor 8 via the feed roller 7 and the feed end is sandwiched between the discharge rollers 9, the cutting device 2 rotates the feed roller 7. The movement is stopped, the work clamp 4 is pushed down by an air cylinder (not shown), the lower surface 6A of the holding block 6 is pressed against the workpiece M, and the workpiece M is held on the table 3. Next, the rotary blade 22 positioned at one of the stroke ends E1 and E2 is rotationally driven by the cutter 20, and the cutter traveling motor 29 of the reciprocating mechanism 23 is moved in a predetermined direction so that the slider 25 travels on the forward path side. When driven to rotate, the rotary blade 22 passes through the slit 5 in the gap S of the work clamp 4 while rotating, cuts the workpiece M while passing, and the other stroke end E2 of the timing belt 28, Stop at E1. The cut material M1 that has been cut is carried out of the table 3 by the rotational drive of the discharge roller 9, and is delivered to the inclined discharge unit 10. The material M1 to be cut slips on the carry-out roller 11 and is collected in a collection box (not shown).

  Further, in the cutting device 2 according to the present embodiment, one of the reciprocating stroke ends E1 and E2 by the reciprocating mechanism 23 is provided with a cutting edge or the like of the material to be cut M adhering to the rotary blade 22. A deposit removing device (attached matter removing means) 30 for removing the kimono is provided. The deposit removing device 30 is detachably attached to the brush holders 31A and 31B arranged facing both side surfaces of the blade 22A of the rotary blade 22 that has reached the path end position E1, and these brush holders 31A and 31B. The brush main bodies 33A and 33B are configured to be attached and contact the blade portion 22A where the tips of the hair-like protrusions 32A and 32B rotate, and the cutting sticks attached to the blade portion 22A of the rotary blade 22 are removed. ing. Further, the cutting device 2 is provided at both ends E1, E2 of the stroke path, one end communicates with a cold air supply source (cold air supply means) (not shown), and the other end is fed with cold air via an internal communication path. The cold air spraying device (adhesion) which has the cold air blowing port 34 which ejects toward the side surface of 22 and cools a rotary blade, and prevents adhesion of the cutting material M of cutting material M, a welding piece, etc. to the rotary blade 22 Prevention means) 35. The cold air blowing device 35 has a cold air blowing port 34 attached to the outer peripheral side of the cover 12, and always blows cold air to the side surface of the rotary blade 22 when the rotary blade 22 reciprocates. As described above, when the material to be cut M is rubber or a synthetic resin having a low heat welding temperature, the cold air spraying device 35 is subjected to frictional heat at the time of cutting of the rotary blade 22 that rotates at a high speed. Since the cutting material M may be welded to the blade portion 22A, the rotary blade 22 is cooled to make it difficult to cause welding.

  Further, in the cutting device 2 according to the present embodiment, one of the reciprocating stroke ends E1 and E2 by the reciprocating mechanism 23 has a cutting edge or a welding piece of the material M to be cut on the rotary blade 22 at one stroke end E1. A lubricant application device (adhesion prevention means) 40 for preventing the adhesion of the adhering matter is provided. The upper end of the lubricating liquid application device 40 communicates with a pair of lubricating liquid supply cups (lubricating liquid supply means) 41A and 41B for supplying a lubricating liquid L such as silicon or oil, and the lower end is lubricated via an internal passage. Leakage ports 42A and 42B for leaking the liquid L to the outside are formed, and these leakage ports 42A and 42B are arranged facing both side surfaces of the blade portion 22A of the rotary blade 22 reaching the positions of the path ends E1 and E2. The lubricating liquid supply device 43 and the leakage outlets 42A and 42B are detachably attached to the leakage outlets 42A and 42B, respectively, and lead to the infiltration bodies 44A and 44B such as felt infiltrated with the lubricating liquid leaking from the leakage outlets 42A and 42B. And infiltrating body support members 45A and 45B that are brought into contact with the rotating blade portion 22A. Since the infiltrating bodies 44A and 44B are in contact with both side surfaces of the blade portion 22A at the stroke end E1, the lubricant applying device 40 applies the lubricant L such as silicon or oil to the blade portion 22A. It has become. For this reason, even if the rotary blade 22 rotates at a high speed and frictional heat is generated, cutting edges and chips of the material to be cut M are difficult to adhere to the blade portion 22A.

  Next, the operation of the cutting device 2 according to the above embodiment will be described. First, when cutting the sheet-shaped workpiece M, the case where the tip of the workpiece M is cut off will be described. In order to cut the leading edge cutting portion of the sheet-like material M to be cut by the cutting device 2, first, the upper roller 7A of the feed roller 7, the upper roller 9A of the discharge roller 9, and the work clamp 4 are not shown. The operator guides the material to be cut M conveyed from the feed conveyor 8 onto the table 3, pulls the end portion Me of the material to be cut out from the slit 5 in the feed direction, and cuts off the portion. Md is placed at a position where it is held by the work clamp 4 (see step S1, FIG. 10A). At this time, the work clamp 4 may be located at either the high level L2 or the low level L1. Further, the rotary blade 22 of the rotary blade drive motor 21 integrated with the slider 25 is located at one stroke end E1. For this reason, since the infiltrates 44A and 44B of the lubricant applying device 40 are in contact with both side surfaces of the blade portion 22A, the lubricant L is applied to the blade portion 22A when the rotary blade 22 is driven to rotate. . Further, when the material to be cut M is rubber or a synthetic resin having a low heat welding temperature, the cold air blowing device 35 is operated, and the cold air is blown out toward the side surface of the rotary blade 22 from the cold air blowing port 34 that moves integrally with the cover 12. The rotary blade 22 is cooled.

  Next, the workpiece clamp 4 and the upper roller 7A of the feed roller 7 are lowered, the workpiece M is held by the holding block 6 of the workpiece clamp 4, and the workpiece M is held by the feed roller 7 (step). S2, see FIG. 10B). At this time, the rotary blade 22 is housed in the gap S of the work clamp 4 and is blocked from the outside by the work clamp 4.

  Next, when the cutter 20 is driven and the reciprocating mechanism 23 is operated, the rotary blade 22 moves along the slit 5 in the gap S of the work clamp 4 in the width direction of the table 3, and the workpiece M is moved. When cutting in the width direction and reaching the other stroke end E <b> 2, the driving of the cutter 20 is stopped and the rotary blade 22 is idled in the gap S of the work clamp 4. Then, the work clamp 4 is slightly displaced upward and held at a low level L1, and the operator removes and discards the cut-off portion Md remaining on the table 3 (see step S3, (C) in FIG. 10). At this time, since the rotary blade 22 is covered with the work clamp 4 slightly displaced upward, the operator does not touch the rotary blade 22. Further, the cold air blowing device 35 is operated, and cool air is ejected from the cold air blowing port 34 attached to the outer peripheral side of the cover 12 to cool the rotary blade 22.

  Next, the workpiece M is fed to the table 3 side by the length to be cut by the feed roller 7. The amount of feed is determined by the amount of rotation of the feed roller 7. At this time, the driving of the cutter 20 is stopped, and the rotary blade 22 is in an idle state in the gap S of the work clamp 4 held at the low level L1, and is kept cooled by the cold air blowing device 35. (See step S4, FIG. 10D).

  Then, the workpiece clamp 4 is lowered to hold the material to be cut M, and the upper roller 9A of the discharge roller 9 is lowered to sandwich the material to be cut M1 on the side to be cut off. At this time, even if the cut material M1 to be cut does not reach the discharge roller 9, the upper roller 9A is lowered, and the cut material M1 to which the cut cut material M1 is newly fed is sent to the discharge roller 9 side. When pushed out, the material to be cut M1 is sandwiched and discharged. When the cutter 20 is driven and the cutter travel motor 29 of the reciprocating mechanism 23 is driven and controlled in the reverse direction, the rotating rotary blade 22 is slit 5 in the gap S of the work clamp 4 from the other stroke end E2. Along the width of the table 3, the workpiece M is cut in the width direction, and returned to one stroke end E1 (see step S5, FIG. 10E). At this time, since the rotary blade 22 is at the position of the other stroke end E1, the lubricating liquid L is applied to the blade portion 22A by the infiltrating bodies 44A and 44B of the lubricating liquid applying apparatus 40, and the deposit removing apparatus 30. The ridges attached to the blade portion 22A of the rotary blade 22 are removed by the hair-like projections 32A and 32B.

  Next, the work clamp 4 is raised from the lowermost position to a low level L1 and held, and the cut material M1, that is, the cut final product is discharged by driving the discharge roller 9. The material to be cut M1 discharged from the discharge roller 9 is transferred to the carry-out portion 10, slides down on the inclined carry-out roller 11, and is collected in a storage box (not shown) (see step S6, FIG. 10F). On the other hand, similarly to step S4, the material to be cut M is fed to the table 3 side by the length to be cut by the feed roller 7 (step S7, see FIG. 10G). Thus, after discarding the cut-off portion Md, the processes from step S4 to step S6 are performed, that is, the workpiece clamp 4 is lifted-feed by the feed roller 7, the workpiece C is held by the workpiece clamp 4, and the cutting blade 22 is cut. By repeating these steps, the final product (material to be cut) M1 is stored in the storage box. During this time, when the workpiece clamp 4 holds the workpiece M at the lowermost position, the rotary blade 22 is accommodated in the gap S of the workpiece clamp 4 and is not exposed to the outside, and is slightly displaced upward. When the rotary blade 22 is held at a low level L1, the rotary blade 22 is blocked by the work clamp 4, so that the rotary blade 22 does not come into contact with the rotary blade 22 and can be operated safely. Moreover, at the stroke end E1, the cutting waste adhering to the blade portion 22A of the rotary blade 22 is removed by the deposit removing device 30, and the lubricating liquid L is applied to the blade portion 22A by the lubricating liquid applying device 40. Deposits accompanying cutting are less likely to adhere to 22A. Further, since the cover 12 is provided with the cold air blowing port 34 of the cold air blowing device 35 to cool the rotary blade 22, the material to be cut M is a rubber or a synthetic resin having a low heat welding temperature. However, since the temperature rise due to frictional heat at the time of cutting of the rotary blade 22 rotating at high speed can be suppressed, the material to be cut M is not easily welded to the blade portion 22A. For this reason, since clogging of a blade can be suppressed, workability | operativity can be improved. In addition, when cutting with the cutter 20, a precise cut surface can be obtained.

  By the way, when cutting the sheet-like material M to be cut without cutting off the tip of the material M, the steps S1 to S3 are omitted, and the process starts from step S4. That is, while the work clamp 4 is displaced and held at the upper level L1 or L2 by an air cylinder (not shown), the upper roller 7A of the feed roller 7 and the upper roller 9A of the discharge roller 9 are lowered. Next, the material to be cut M conveyed from the feed conveyor 8 is guided to the feed roller 7, and the material to be cut M is sent to the table 3 side by the feed roller 7, and is sent out by the length to be cut from the slit 5. When the part Me reaches the positioning position, the driving of the feed roller 7 is stopped. Next, the work clamp 4 is lowered and the workpiece M is held. At this time, the rotary blade 22 of the rotary blade drive motor 21 integrated with the slider 25 is located at one stroke end E1.

  Next, when the cutter 20 is driven and the reciprocating mechanism 23 is operated, the rotary blade 22 moves along the slit 5 in the gap S of the work clamp 4 in the width direction of the table 3, and the workpiece M is moved. When cutting in the width direction and reaching the other stroke end E <b> 2, the driving of the cutter 20 is stopped and the rotary blade 22 is idled in the gap S of the work clamp 4. Then, the work clamp 4 is slightly displaced upward and held at a low level L1, and the cut and separated material M1 remaining on the table 3 is delivered to the carry-out portion 10 by the discharge roller 9. When the cut-off material M1 to be cut has a short feed-out dimension and the end portion Me of the cut material M1 does not reach the discharge roller 9, the end of the cut material M newly fed by the feed roller 7 The material to be cut M1 is pushed out by the portion Me and guided to the discharge roller 9, and is delivered to the carry-out portion 10 by the discharge roller 9. Thus, even when the tip of the material to be cut M is used without being cut off, the operator can safely work without contacting the rotary blade 22. At the stroke end E1, the cutting waste adhering to the blade portion 22A of the rotary blade 22 is removed by the deposit removing device 30, and the lubricating liquid L is applied to the blade portion 22A by the lubricating liquid applying device 40. Deposits accompanying cutting are difficult to adhere. Further, since the rotary blade 22 is cooled by the cool air blowing device 35 of the cover 12, even if the material to be cut M is a rubber or a synthetic resin having a low heat welding temperature, the rotary blade 22 that rotates at a high speed is used. Since the temperature rise due to frictional heat at the time of cutting can be suppressed, the material to be cut M is not easily welded to the blade portion 22A.

  Next, a modification of the above embodiment will be described. As shown in FIG. 11A, the cutting device 102 according to the modification of the present invention has the rotary blade drive motor 21 attached to the upper portion of the slider 25 in the cutting device 2 according to the above embodiment. Except for the disposition of the rotary blade drive motor 121, it has substantially the same configuration as the above embodiment. That is, the cutting device 102 according to the modified example has a rotary blade drive motor 121 attached to the lower part of the slider 25, a bearing case 113 is provided at the upper end of the slider 25, and the shaft 114 is rotatably supported on the bearing case 113. Thus, one end protrudes toward the discharge side of the material to be cut M. A rotary blade 122 is attached to the protruding end of the shaft 114, and the shaft 114 and the rotary blade drive motor 121 are connected by a transmission belt 115 so as to be able to transmit the drive. With this configuration, the space below the table 3 can be used effectively, and the entire apparatus can be made compact.

  In the above embodiment, the sheet-shaped workpiece M has been described. However, the present invention is not limited to this, and it is needless to say that the present invention can be applied to a roll-shaped workpiece. In the above embodiment, the discharge roller 9 is provided. However, the present invention is not limited to this. The worker can collect the cut material M that has been cut and separated without providing the discharge roller 9 each time. May be. Further, in the above-described embodiment, the deposit removing device 30 and the lubricating liquid applying device 40 are provided at least one of the stroke ends E1 and E2, and the cool air blowing device 35 is provided on the cover 12. However, the present invention is not limited to this, and it goes without saying that at least one of them may be provided.

2 Cutting device 3 Table 4 Work clamp (holding means)
5 Slit 20 Cutter (cutting means)
21 Rotary blade drive motor (drive means)
22 Rotating blade 23 Reciprocating mechanism (reciprocating means)
M, M1 Material to be cut

Claims (9)

A table in which the material to be cut is placed and slits are formed in the width direction, and is provided so as to be movable up and down above the table. During the cutting operation of the material to be cut, the material to be cut placed on the table is pressed. Holding means for holding the cutting blade, cutting means for cutting the material to be cut on the slit by rotating the rotary blade so that the rotary blade can pass through the slit by driving means, and the rotary blade of the cutting means along the slit And reciprocating means for reciprocating,
A cutting apparatus characterized in that a rotary blade is projected on a slit of a table, and a cutting means and a reciprocating means are arranged below the table. The holding means is disposed along the extending direction of the slit, and has a lower surface pressed against the material to be cut placed on the table, and a work clamp in which a gap is formed along the slit on the lower surface, The work clamp is lifted up and down, and is configured to include a lifting device that holds it in a predetermined position up and down,
The cutting means comprises a rotary blade drive motor and a rotary blade attached to the output shaft of this motor,
A reciprocating means having a guide disposed along a slit, a movable member to which the motor is attached, and reciprocating the guide, and a timing belt in which a part of the movable member is locked and wound around a sprocket And a traveling motor that is coupled to one of the sprockets and that rotates forward and backward to reciprocate the timing belt with a desired stroke.   On the workpiece feed side of the table, a feed roller is connected to the drive control unit so that the drive can be transmitted, and the feed material is fed to the table with a desired feed amount, and the workpiece is fed to the feed roller connected to the feed roller. The cutting apparatus according to claim 1 or 2, further comprising a feed conveyor.   The cut material feed side of the table is provided with a discharge roller for holding the cut material to be sent to the table and discharging the cut cut material to the outside after cutting the cut material. The cutting device according to any one of claims 1 to 3. A table in which the material to be cut is placed and slits are formed in the width direction, and is provided so as to be movable up and down above the table. During the cutting operation of the material to be cut, the material to be cut placed on the table is pressed. Holding means for holding the cutting blade, cutting means for cutting the material to be cut on the slit by rotating the rotary blade so that the rotary blade can pass through the slit by driving means, and the rotary blade of the cutting means along the slit And reciprocating means for reciprocating,
At least one of the both ends of the path reciprocated by the reciprocating means is the at least one of the adhering substance removing means for removing the adhering substance adhering to the rotating blade or the adhering preventing means for preventing the adhering adhering matter to the rotating blade A cutting device provided with any one of them.   The deposit removing means includes a brush holder disposed facing both side surfaces of the blade portion of the rotary blade that has reached the position of the path end, and a blade that is detachably attached to the brush holder and the tip of the hair projection rotates. The cutting apparatus according to claim 5, further comprising a brush body that is in contact with the portion.   Cold air having one end connected to the cold air supply means and the other end having a cold air blowing port that cools the rotary blade by ejecting the cold air toward the side surface of the rotary blade in conjunction with the reciprocating motion of the rotary blade. The cutting apparatus according to claim 5 or 6, wherein the cutting apparatus comprises a spraying device.   The adhesion preventing means is provided at one end of both ends of the reciprocating path, one end communicates with the lubricating liquid supply means, and the other end is formed with a leak outlet for leaking the lubricating liquid to the outside through an internal passage. In addition, a lubricating liquid supply device arranged such that these leakage outlets face both side surfaces of the blade portion of the rotary blade that has reached the position of the path end, and a lubricating liquid that is detachably attached to these leakage outlets and leaks from the leakage outlet. 6. An infiltrating body supporting member that guides the infiltrating body to be infiltrated and contacts one of the surfaces of the infiltrating body with the rotating blade portion, and applies a lubricating liquid to the blade portion of the rotating blade. 7. The cutting device according to claim 1.   The cutting device according to any one of claims 5 to 8, wherein the cutting means and the reciprocating means are arranged below the table.

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