JP5330086B2 - Cutting machine - Google Patents

Description

  The present invention relates to a cutting machine that cuts a sheet material such as a knitted fabric or a woven fabric into a desired shape while automatically conveying the sheet material.

  For example, a cutting machine 100 used for cutting a sheet material such as a knitted fabric or a woven fabric as described in Patent Document 1 is known (see FIG. 1). The cutting machine 100 carries the laminated sheet material from the carry-in side table 2 to the conveyor table 1, cuts the sheet material on the brush surface 1 s of the conveyor table 1 by the cutting mechanism 4, and then transfers the cut sheet material to the conveyor table. It is a device that automatically performs a series of operations such as unloading from 1 to the unloading table 3.

  Among the configurations of the cutting machine 100, the conveyor table 1 includes a plurality of brush mounting bases that travel on an endless track, and brush surfaces 1s that are held on each brush mounting base and on which a sheet material is placed during cutting. And a guide block that is fixed to both ends of each brush mounting base and supports the side surface of the brush block, so that the brush surface 1s moves in the transport direction (XY direction in the figure). It has become. A suction chamber is provided below the brush surface 1s, and is configured to suck air from the surface of the brush surface 1s and to adsorb the sheet material to the brush surface 1s. Further, when the sheet material is sucked, the surface of the sheet material is covered with the sealing sheets 5 and 6 so that the suction force is increased.

Japanese Patent No. 2816780

  Since the cutting machine disclosed in Patent Document 1 is configured to perform vacuum suction only from the brush surface 1s, it is necessary to stop suction in the suction chamber in order to operate the conveyor table 1 and move the brush surface 1s due to its structure. There is. Therefore, the applicant of the present invention, as a configuration that can convey the sheet material while sucking, conveys the conveyor table 1 with the brush surface 1s and the upper surface of the guide block adjacent to the brush surface 1s exposed to the outside. 1 was placed in the suction chamber, and a configuration in which the conveyor table 1 was vacuumed as a whole was studied. Here, the upper surface of the guide block is a surface on the brush surface 1s side in the guide block adjacent to the brush surface 1s.

  However, as a configuration in which the conveyor table 1 is entirely vacuum-sucked, when the sheet material is sucked out to the carry-out side table 3, the sealing sheet 5 is drawn into a gap at the boundary portion between the carry-out side table 3 and the conveyor table 1. The problem that it is easy to be generated arises. In particular, even in the boundary portion, the sealing sheet 5 is remarkably drawn at the positions of guide blocks (positions indicated by thick arrows in the drawing) provided at both ends in the longitudinal direction of the brush mounting base to prevent the brush block from falling off. It is.

  The present invention has been made in view of the above circumstances, and its main purpose is that when a sheet material to be cut is conveyed while being vacuum-sucked, a sealed sheet covering the sheet material is formed between the conveyor table and the carry-out table. An object of the present invention is to provide a cutting machine that is not drawn into the gap.

  The present invention relates to a cutting machine including a carry-in table, a conveyor table, a carry-in table, a cutting mechanism, and a suction chamber. The carry-in side table is a table into which the sheet material before cutting is carried. The conveyor table includes a group of brush blocks that form a brush surface on which a sheet material for cutting is placed, and a plurality of guides that run on an endless track together with the brush block group while supporting both sides of the brush block group. It has a block and the sheet material carried in from the carry-in side table is sandwiched between the brush surface and the sealing sheet and conveyed. The carry-out side table is a table on which the cut sheet material is carried out from the conveyor table. The cutting mechanism cuts the sheet material on the brush surface. The suction chamber stores the conveyor table with the brush surface of the conveyor table and the upper surface of the guide block adjacent to the brush surface exposed to the outside, and sucks the sheet material from the brush surface when cutting. The cutting machine according to the present invention includes a groove portion provided on the upper surface of each guide block so as to form a series in the traveling direction of the endless track, and reaches the groove portion from the carry-out side table, and the upper surface and the carry-out side of the guide block. And a shielding portion that shields a gap with the table.

  This invention cutting machine can be set as the structure provided with the 1st elongate material which one end is fixed to the said carrying-out side table, and extends toward the said groove part. In this case, a part of 1st elongate material can be made into a shielding part.

  This invention cutting machine can be set as the structure provided with the nail | claw part which has the root part fixed to a carrying-out side table, and the front-end | tip part which reaches in the said groove part. In this case, the claw portion can be a shielding portion.

  This invention cutting machine which has a nail | claw part may be equipped with the 2nd elongate material extended along the inside of a groove part from the front-end | tip part of a nail | claw part.

  The cutting machine of the present invention preferably includes a suction hole provided on the upper surface of the guide block of the brush mount on the outer side of the conveyor table in the width direction of the conveyor table. By sucking air from the suction hole toward the suction chamber, the sealing sheet can be sucked onto the upper surface of the guide block and the sealing sheet can be stretched across the groove.

  According to the cutting machine of the present invention, when carrying out the sheet material sealed with the sealing sheet, the conveyor table and the carry-out table are shielded by the shielding portion that shields at least a part of the gap between the upper surface of the guide block and the carry-out table. It is possible to prevent the sealing sheet from entering the gap.

  Since the sealing sheet can be scooped up from the upper surface of the guide block by adopting the first long material or the configuration including the claw portion, it is effective that the sheet material enters the gap between the upper surface of the guide block and the carry-out side table. Can be prevented. In addition, the combination of the claw portion and the second long material can more reliably scoop up the sealing sheet from the upper surface of the guide block.

  Further, according to the cutting machine of the present invention having the suction hole on the upper surface of the guide block, by sucking air from the suction hole toward the suction chamber, the sealing sheet protrudes from the brush surface and straddles the groove portion of the guide block. The end can be adsorbed on the upper surface of the guide block. As a result, it is possible to prevent the sealing sheet from coming into close contact with the inner wall of the groove, so that the sealing sheet can be easily picked up by the nail portion.

It is a perspective view which shows schematic structure of a cutting machine. It is a schematic longitudinal cross-sectional view of a cutting machine. It is a schematic top view of the guide block vicinity in the cutting machine which concerns on 1st Embodiment. It is a fragmentary sectional view of the edge part of the longitudinal direction of the brush mounting base in the cutting machine concerning a 1st embodiment. It is a three-view figure of an attachment provided with a nail | claw part, Comprising: (A) is a top view, (B) is a front view, (C) is a side view. It is a schematic top view of the guide block vicinity in the cutting machine which concerns on 2nd Embodiment. It is a three-view figure of the attachment of the cutting machine which concerns on 3rd Embodiment, (A) is a top view, (B) is a front view, (C) is a side view. It is a schematic top view of the guide block vicinity in the cutting machine which concerns on 3rd Embodiment. It is a fragmentary sectional view of the edge part of the longitudinal direction of the brush mount in the cutting machine concerning a 3rd embodiment.

(First embodiment)
Hereinafter, embodiments of the present invention will be described with reference to FIGS. In these drawings, the direction of the carry-in side is indicated by X, the direction of the carry-out side is indicated by Y, and the left side direction of the cutting machine with the state viewed from the carry-in side is indicated by Z.

<Overall configuration>
The cutting machine 100 shown in the present embodiment is an apparatus that has substantially the same appearance as a conventional cutting machine and cuts a sheet material into a desired shape while transporting the sheet material from the carry-in side to the carry-out side. The cutting machine 100 includes tables 2 and 3 provided on the carry-in side and the carry-out side, a conveyor table 1 that conveys a sheet material from the carry-in side to the carry-out side between the tables 2 and 3, and an upper surface of the conveyor table 1. And a cutting mechanism 4 for cutting the sheet material on the brush surface 1s supporting the sheet material.

  As shown in FIG. 2, the conveyor table 1 of the cutting machine 100 extends from the carry-in side to the carry-out side, and connects the endless track 10 disposed on each side surface of the cutting machine 100 to both the endless tracks 10. A brush mounting base 20 is provided, and a brush block 30 is arranged on the brush mounting base 20. By providing such a configuration, the bristles 32 of the brush block 30 exposed on the upper surface of the cutting machine 100 constitute the brush surface 1s, and by moving the endless track 10, the brush surface 1s is moved from the carry-in side to the carry-out side, or It can be moved from the carry-out side to the carry-in side. As shown in FIGS. 2 and 4, the conveyor table 1 is housed in the suction chamber 9 with the brush surface 1s and the guide block 21 adjacent to the brush surface 1s exposed to the outside. Therefore, if the pressure in the suction chamber 9 is lowered, air from any gaps in the portion exposed from the suction chamber 9 in the conveyor table 1 (such as the brush surface 1s and the gap in the vicinity of the guide block 21 on the same upper surface side as the brush surface 1s). Is sucked, the sheet material whose surface is covered with the sealing sheet 5 is brought into close contact with the brush surface 1s, and the sheet material is stably held.

  Further, the upper surfaces of the carry-in side table 2 and the carry-out side table 3 are arranged at a position higher than the brush surface 1 s, and the sheet material can be smoothly moved between the conveyor table 1 and the tables 2 and 3. Combs 2C and 3C are arranged for this purpose. The tips of the combs 2C and 3C are inclined so as to descend from the tables 2 and 3 toward the brush surface 1s and pierce the brush surface 1s, and the tips of the teeth of the combs 2C and 3C are arranged in the gaps of the bristles 32 It is in. In addition, when a plurality of air blowing ports are formed on the upper surfaces of the tables 2 and 3, and the sheet material is floated by the air blown from the blowing ports, the friction between the sheet material and the tables 2 and 3 is reduced. The sheet material can be easily conveyed.

  In order to cut the sheet material stacked by the cutting machine 100 having the above-described configuration, first, the sheet material is sent out from the carry-in side table 2 to the conveyor table 1. The sheet material is supplied to the conveyor table 1 in a state where the surface is covered with a flexible sealing sheet 5 supplied from a roll provided in the vicinity of the boundary between the carry-in side table 2 and the conveyor table 1.

  The sheet material conveyed to the central portion of the conveyor table 1 is cut into a desired shape by the cutting mechanism 4. The cutting mechanism 4 includes a beam 41 that moves in the transport direction (X-Y direction) and a cutting head 42 that moves on the beam 41. The cutting sheet 4 is sealed by a cutter that moves vertically from the cutting head 42 to the brush surface 1s. Cut the sheet material together.

  The surface of the cut sheet material is covered with a sheet-like sealing sheet 6 supplied from a roll on the carry-out side of the beam 41. With this sealing sheet 6, it is possible to supplement the sealing of the sealing sheet 5 that has been torn by the cutter, and to prevent a reduction in suction force that causes the sheet material to adhere to the brush surface 1s.

  Finally, the sheet material moves from the conveyor table 1 to the carry-out side table 3, and the cut sheet material is carried out. Here, as already described, the sealing sheet 5 may be drawn into the gap between the conveyor table 1 and the carry-out side table 3 at the position of the thick arrow in FIG. Therefore, the cutting machine 1 according to the present embodiment is provided with a configuration that prevents the sealing sheet 5 from being pulled in the portion. Hereinafter, each configuration of the cutting machine 100 will be described in detail with reference mainly to FIGS. 3 and 4, only a part of the left side Z of the cutting machine 100 is shown.

≪Endless orbit≫
The endless track 10 of the conveyor table 1 is composed of a pair of sprockets 12 and 13 disposed on the carry-in side and the carry-out side, and an endless chain 11 spanned over the sprockets 12 and 13. The chain 11 is formed by connecting a plurality of links 110 so that they can be bent. Further, the chain 11 has a fixing portion that bends toward the inside of the conveyor table 1, and the brush mounting base 20 can be fixed to the link 110 via the fixing portion. Here, in FIG. 2, only the endless track 10 on the left side Z of the cutting machine 100 is shown, but actually one is also provided on the right side of the cutting machine 100.

  As shown in FIG. 2, the chain 11 of the endless track 10 has a pair of upper and lower guide rails 27 in the vicinity of the comb 2C (carrying side end) and a pair of upper and lower guide rails in the vicinity of the comb 3C (carrying side end). By being sandwiched by 29, it is kept in a horizontal state. A guide cam 28 that smoothly guides the chain 11 to the guide rail 27 is disposed between the lower guide rail 27 and the sprocket 12.

≪Brush mounting base≫
The brush mount 20 is a long, substantially plate-like member that extends in a direction orthogonal to the extending direction of the chain 11 so as to be spanned by the two endless tracks 10, and the brush block 30 can be disposed on one surface thereof. (See FIGS. 3 and 4). Further, the brush mounting base 20 has a guide block 21 that protrudes toward the arrangement surface side of the brush block 30 at both ends in the longitudinal direction, and is fixed to the fixing portion of the link 110 at the position of the guide block 21. The guide block 21 is for preventing the brush block 30 disposed on the brush mounting base 20 from being detached from the end of the brush mounting base 20. The brush mount 20 including the guide block 21 is made of a material such as a metal having rigidity that does not easily bend. The brush mount 20 has a guide roller 25 on its lower surface. When the brush mount 20 is on the upper side of the line connecting the shaft centers of the sprockets 12 and 13, the guide rail 15 is on the lower side. It is the structure which drive | works the lower support rail 19 (refer FIG. 2, FIG. 4).

≪Brush block≫
The brush block 30 has a plurality of bristles 32 extending from one surface of the rectangular plate material 31 (see FIGS. 3 and 4). The bristles 32 have the same tip position, and form a flat brush surface 1 s when the brush block 30 is attached to the brush mounting base 20. Further, an engaging portion 39 is formed on the other surface of the rectangular plate material 31, and the brush block 30 is attached to the brush mounting base 20 by the engagement between the engaging portion 39 and the engaging portion 26 of the brush mounting base 20. It is attached. When arranging the brush blocks 30 on the brush mounting base 20, as shown in FIG. 4, the elastic material 24 is sandwiched between the brush block 30 and the guide block 21, and the brush blocks 30 arranged in parallel are positioned. To prevent the brush blocks 30 from wobbling.

≪Configuration to prevent entrainment of the sealing sheet≫
In the present embodiment, a groove portion 21 </ b> G extending in the sheet material conveyance direction (the traveling direction of the endless track 10) is formed on the upper surface of each guide block 21. The groove portion 21G is formed with a uniform depth from one end of the guide block 21 to the other end. However, the depth of the groove 21G may not be uniform. The groove 21G of each guide block 21 is a series in the transport direction when a plurality of brush mounts 20 including the guide block 21 are arranged in the transport direction.

  Moreover, in this embodiment, the attachment 7A of a substantially rectangular plate shape as shown in the three views of FIG. 5 is attached to the carry-out side table 3 (position indicated by a thick arrow in FIG. 1). As shown in FIG. 3, the attachment 7 </ b> A is fixed to the carry-out side table 3 and the frame 8. A belt fixture 23 for fixing the belt 22 that covers the gap between the widthwise end of the brush surface 1s and the frame 8 of the cutting machine 100 is fixed to the attachment 7A. However, in FIG. 3, in order to make the attachment state of the attachment 7A easy to understand, a part of the configuration of the carry-out side table 3 is omitted.

  The attachment 7 </ b> A has a claw portion 7 that extends toward the conveyor table 1 when attached to the carry-out side table 3, and whose tip end portion is vertically lowered, and is disposed in the groove portion 21 </ b> G of the guide block 21. Further, the claw portion 7 has an inclined surface 71 having no step. The claw portion 7 having such a configuration functions as a shielding portion that partially shields the gap between the upper surface of the guide block 21 and the carry-out side table 3 between the root portion and the tip portion. When the sheet material is unloaded from the conveyor table 1 by the grooves 21G and the claw portions 7, the sheet 5 is scooped up from the guide block 21 so as to cover the sheet material and closely adhere to the guide block 21. 3 can be smoothly guided. As a result, the sealing sheet 5 can be prevented from being drawn into the gap between the conveyor table 1 and the carry-out table 3.

  The tip of the claw 7 may be formed with a uniform width from the root to the tip when the claw 7 is viewed from above as shown in FIG. As shown in the third embodiment, the width may be narrowed toward the tip. If the nail | claw part 7 is made into a taper shape, the sealing sheet 5 can be picked up smoothly toward the inclined surface 71 from the front-end | tip part of the nail | claw part 7. FIG. Further, when the brush surface 1s is moved toward the carry-out side, even if the guide blocks 21 adjacent to each other in the transport direction are displaced in the width direction of the cutter (the extending direction of the beam 41 in FIG. 1) due to vibration or the like, The tip portion of the claw portion 7 is not caught by this shifted portion.

  Further, the guide block 21 described above is provided with a suction hole 21 </ b> H provided outside the groove portion 21 </ b> G in the longitudinal direction of the brush mounting base 20 and communicating with the suction chamber 9. In the configuration in which most of the conveyor table 1 is arranged in the suction chamber 9 as in the present embodiment, air is sucked from any gaps (including the brush surface 1 s) in the portion exposed from the suction chamber 9 in the conveyor table 1. Therefore, the sealing sheet 5 may be sucked and fall into the groove portion 21G. However, if there is the suction hole 21H, the side edge portion of the sealing sheet 5 can be sucked against the upper surface of the guide block 21, and the sealing sheet 5 can be prevented from closely contacting the inner wall of the groove portion 21G. As a result, it becomes easy to scoop up the sealing sheet 5 by the claw portion 7.

  According to the cutting machine 100 of the present invention described above, when the sheet material is carried out while being sucked, the sealing sheet 5 covering the sheet material is formed between the conveyor table 1 and the carry-out side table 3 (as indicated by the thick arrows in FIG. 1). Since the sheet material can be prevented from being drawn into the position), the laminated sheet material can be cut very efficiently.

<Other configuration of cutting machine>
A carry-out roller (not shown) for sending the sealing sheet 5 in the carry-out direction is provided above the carry-out side table 3. The carry-out roller may be single or plural. When a single carry-out roller is used, the axial length of the carry-out roller may be configured to have a length close to the width of the brush surface 1s. In that case, it is preferable that the carry-out roller is configured to be vertically movable in accordance with the thickness of the sheet material to be carried out. On the other hand, when there are a plurality of carry-out rollers, it is preferable to arrange them at a predetermined interval in the width direction of the brush surface 1s. Also in this case, it is preferable to have a configuration that can move up and down in the vertical direction according to the thickness of the sheet material.

(Second Embodiment)
In the second embodiment, a wire (first long material) is used instead of the attachment 7A shown in FIG. 5 used in the first embodiment, thereby shielding the gap between the carry-out side table and the upper surface of the guide block. The configuration will be described. The configuration other than the wire in the cutting machine of the second embodiment is the same as that of the first embodiment.

  FIG. 6 is a schematic top view of the vicinity of the guide block 21 in the cutting machine to which the wire 70 is attached. As shown in FIG. 6, the cutting machine of this embodiment includes a wire 70 having one end fixed to the carry-out side table 3 and the other end fixed to a carry-in side table (not shown). The end of the wire 70 may be fixed by attaching a connecting member such as a round terminal to the end of the wire 70 as shown in the figure, and screwing this connecting member to the table. In addition, the wire end may be fixed by pressing the end of the wire 70 arranged on the carry-out side table 3 or the carry-in side table with an appropriate plate and fixing the plate to each table by screwing or the like. good.

  The wire 70 is not stretched without slack by applying a strong tension, but is stretched in a state where a certain amount of tension is applied, and the carry-out side table 3 and the carry-in side table to which the ends are fixed. It bends in the position of the edge part and falls into the groove part 21G. A portion of the wire 70 that is bent from the carry-out side table 3 and reaches into the groove portion 21G shields the gap between the carry-out side table 3 and the upper surface of the guide block 21 as a shielding portion, and the claw portion of the first embodiment. Similarly, scoop up the sealing sheet.

(Third embodiment)
In the third embodiment, instead of the attachment 7A shown in FIG. 5 used in the first embodiment, the attachment 7B shown in FIG. 7 and the wire 70 (second long material) attached to the attachment 7B are used. A configuration for shielding the gap between the carry-out side table 3 and the guide block 21 will be described. The configuration other than the attachment 7B and the wire 70 in the cutting machine of the third embodiment is the same as that of the first embodiment.

  FIG. 7 is a three-side view of the attachment 7B used in the present embodiment. FIG. 8 is a schematic top view of the vicinity of the guide block in the cutting machine to which the attachment 7B is attached, and FIG. 9 is a partial cross-sectional view of the longitudinal end portion of the brush mounting base 20 in the cutting machine.

  As with the attachment 7A of the first embodiment, the attachment 7B includes a claw portion 7 having an inclined surface 71 having no step, and the upper surface of the guide block 21 and the carry-out side between the root portion and the tip portion of the claw portion 7 The gap with the table 3 is partially shielded. As shown in FIG. 7A, the claw portion 7 of the attachment 7B is formed so as to become narrower toward the tip when the attachment 7B is viewed from above. Further, the claw portion 7 is directed from the upper surface side to the lower surface side of the attachment 7B when the attachment 7B is viewed from the side surface (as viewed from the axial direction side of the claw portion 7) as shown in FIG. The width is reduced. Further, the inclined surface 71 of the claw portion 7 is formed with a hole portion 72 that penetrates the claw portion 7 in the horizontal direction. The hole 72 in the inclined surface 71 is provided so that the opening of the hole 72 is arranged in the groove 21G when the attachment 7B is attached to the carry-out side table 3 (see FIG. 9).

  At the back side of the hole 72, as shown in FIG. 8, one end of the wire 70 is fixed by caulking. The wire 70 fixed to the hole 72 extends along the groove 21G in the groove 21G and is fixed to a carry-in table (not shown). In addition to caulking, the wire 70 may be fixed to the hole 72 of the claw portion 7 by brazing or bonding, or may be fixed to the carry-out side table 3 through the hole 72. good.

  When the conveyor table 1 is moved toward the carry-out side using the cutting machine having the above configuration, the sealing sheet 5 straddling the groove 21G always floats from the bottom surface of the groove 21G by the wire 70 extending along the groove 21G. It becomes a state. When the sealing sheet 5 is actually scooped up in the vicinity of the boundary between the carry-out side table 3 and the conveyor table 1, the tip of the claw portion 7 located on the bottom surface side of the groove portion 21 </ b> G from the wire 70 is It is inserted under the sealing sheet 5 in a state of floating from the bottom surface. As a result, the sealing sheet 5 can be reliably scooped up from the guide block 21.

DESCRIPTION OF SYMBOLS 100 Cutting machine 1 Conveyor table 1s Brush surface 10 Endless track 11 Chain 110 Link 12, 13 Sprocket 15 Guide rail 19 Lower support rail 20 Brush mount 21 Guide block 22 Belt 23 Belt fixture 24 Elastic material 25 Guide roller 26 Engagement part 27 , 29 Guide rail 28 Guide cam 30 Brush block 31 Rectangular plate 32 Bristles 39 Engagement part 2 Loading side table 2C comb 3 Unloading side table 3C comb 4 Cutting mechanism 41 Beam 42 Cutting head 5, 6 Sealing sheet 8 Frame 9 Suction chamber 7A 7B Attachment 7 Claw part (shielding part) 71 Inclined surface 72 Hole part 70 Wire (1st long material, 2nd long material)
21G Groove 21H Suction hole

Claims (5)

A loading-side table into which the sheet material before cutting is loaded;
A brush block group that forms a brush surface on which a sheet material at the time of cutting is placed, and a plurality of guide blocks that support both sides of the brush block group and run on an endless track together with the brush block group A conveyor table that carries the sheet material carried in from the carry-in table sandwiched between the brush surface and the sealed sheet, and
A carry-out table from which the cut sheet material is carried out from the conveyor table;
A cutting mechanism for cutting the sheet material on the brush surface;
A cutting machine that includes a brush surface and a suction chamber that houses a conveyor table with the upper surface of a guide block adjacent to the brush surface exposed to the outside and sucks the sheet material from the brush surface when the sheet material is cut. And
A groove provided on the upper surface of each guide block so as to be a series in the traveling direction of the endless track,
A cutting machine comprising: a shielding part that reaches from the carry-out side table into the groove and shields a gap between the upper surface of the guide block and the carry-out side table.   2. The cutting machine according to claim 1, wherein one end of the shielding portion is fixed to the carry-out side table and includes a first long material that extends toward the inside of the groove portion.   The cutting machine according to claim 1, wherein the shielding part includes a claw part having a root part fixed to the carry-out side table and a tip part reaching the groove part.   The cutting machine according to claim 3, further comprising a second long material extending from the tip of the claw portion along the groove.   Provided on the upper surface of the guide block on the outer side of the conveyor table in the width direction of the conveyor table, sucking air toward the suction chamber by sucking air toward the upper surface of the guide block and straddling the groove The cutting machine according to any one of claims 1 to 4, further comprising a suction hole that makes the sealing sheet stretched.

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