JP2008183598A - Conveyer device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveyer device with a laser cutting machine where the cutting lines of a square cut material with a size prescribed from the material to be cut are cut in a noncontact state, and reduction in the quality of the square cut material can be suppressed. <P>SOLUTION: Each tensile side 9a of a plurality of thin-width endless belts 9 is provided with two first noncontact parts 11 evading the contact with the cutting lines L1, L2 of both the edges in the width direction of a square cut material 21. Each tensile side 9a is detoured toward the slack side 9b at the lower face of each thin-width endless belt 9 by a detour pulley unit 12, and two second noncontact parts 13 evading the contact with the cutting lines W1, W2 of both the edges in the cross direction of the square cut material 21 are provided. The beltlike material 20 to be cut is placed on the tensile side 9a, the cutting lines L1, L2, W1, W2 of the square cut material 21 are made to correspond to the two first noncontact parts 11 and the two second noncontact parts 13, and these cutting lines L1, L2, W1, W2 are cut by a laser cutting machine 3 in a noncontact state. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a conveyor apparatus provided with a laser cutting machine, and more specifically, a conveyor provided with a laser cutting machine suitable for cutting out a plurality of sizes of rectangular cut objects defined from a long cut object by a laser cutting machine. Relates to the device.

  2. Description of the Related Art Conventionally, there has been proposed a conveyor apparatus including a laser cutting machine that prevents the residual residue generated when cutting cloth by laser light from re-adhering to the cloth and increases the yield of the cloth (Patent Document 1).

  Only the conveyor in the conveyor apparatus provided with the laser cutting machine of the said patent document 1 is shown in FIG. In this figure, a horizontal upper surface of an endless conveyor belt 50 constitutes a placing and holding surface of a cloth (not shown) as a material to be cut, and the conveyor belt 50 is a plurality of conveyors which are rectangular bodies. The body 51 is configured by connecting them with a chain (not shown) so that their long sides are adjacent to each other and face each other. As shown in FIGS. 6 and 7, each conveyor body 51 includes a large number of plate bodies 52 having a thickness of 0.3 to 0.5 mm, and two support plates with a gap 53 having an interval of 7 to 15 mm. It is comprised by supporting by 54.

JP-A-11-20921

  By the way, the object to be cut is, for example, a single layer structure composed of a single resin film, a multiple layer structure in which two resin films are stacked, or a composite layer structure in which a liquid layer is sandwiched between upper and lower resin films. In addition, when the structure is mainly made of a resin film, when a rectangular cutting line is cut out from the object to be cut by cutting both sides in the width direction of the square and both ends in the front-rear direction with a laser cutting machine, the rectangular cutting line is covered. It has been found that an oxide film is generated on the cut surface when the holding surface of the holding body on which the cut material is placed and held is in contact, and the quality of the rectangular cut material is lowered. Therefore, depending on the type of material to be cut, it is necessary to cut in a non-contact state that avoids contact between the cutting line and the holding surface of the holding body. In addition, when the cut surface is exposed to smoke, which is a combustion product at the time of cutting the quadrilateral cutting line, the production of the oxide film is promoted to further reduce the quality of the quadrangular cut product.

  In the conveyor apparatus provided with the laser cutting machine described in Patent Document 1, each conveyor body 51 includes a large number of plate bodies 52 having a thickness of 0.3 to 0.5 mm and gaps 53 having an interval of 7 to 15 mm. Since it is configured to be supported by two support plates 54 apart from each other, when cutting a plurality of sizes of rectangular cuts defined from the object to be cut, The cutting lines at both ends in the width direction correspond to any one of the gaps 53, and a non-contact state in which contact between the cutting lines at both ends in the width direction and the plurality of conveyor bodies 51 is ensured. For this reason, it is possible to cut the cutting lines at both ends in the width direction in the specified rectangular cut objects of a plurality of sizes in a non-contact state that avoids contact between the cutting lines at both ends in the width direction and the plurality of conveyor bodies 51. is there.

  However, the non-contact state in which the cutting line at one end in the front-rear direction of the rectangular cut object is positioned in the facing gap where the long sides of the conveyor body 51 are adjacent to each other, thereby avoiding contact between the cutting line at one end in the front-rear direction and the conveyor body 51. Even if it is secured, if it is a rectangular cut product of a plurality of sizes specified, the cutting line at the other end in the front-rear direction exhibits a partial contact state that is dispersed and held by a large number of plate bodies 52. Therefore, an oxide film having an interval of 7 to 15 mm corresponding to the interval between the plate bodies 52 is generated on the cut surface at the other end in the front-rear direction, and the quality of the quadrangular cut product is deteriorated.

  The present invention has been made in order to solve such problems, and the object of the present invention is to form both ends in the width direction and the front-rear direction of a plurality of sizes of rectangular cut objects defined from a long cut object. An object of the present invention is to provide a conveyor apparatus provided with a laser cutting machine that can cut a cutting line at both ends in a non-contact state and suppress a deterioration in quality of a rectangular cut product.

  The conveyor apparatus provided with the laser cutting machine of the present invention places the object to be cut intermittently on the pull side of the upper surface of the endless belt that moves intermittently and conveys it intermittently from the object to be cut by the laser cutting machine. In a conveyor apparatus equipped with a laser cutting machine that cuts a cutting line at both ends in the direction and both ends in the front-rear direction and cuts out the rectangular cut material, the belt has two belts that avoid contact with both ends in the width direction of the rectangular cut material. The first non-contact portion described above is provided over the entire longitudinal direction, and the pulling side of the upper surface is detoured toward the loose side of the lower surface of the endless belt to avoid contact with the front and rear ends of the quadrilateral cut material. The laser cutting machine is provided with two or more second non-contact parts that are opposed to the upper side of the upper surface of the belt on the pulling side and are capable of relative movement in the longitudinal direction and the width direction. It is characterized in that it is location.

  According to this, two or more first non-contact portions are arranged in the longitudinal direction of the belt with a gap in the width direction corresponding to the dimension between the cutting lines at both ends in the width direction in each of the prescribed rectangular cuts of a plurality of sizes. By providing them over the entire area, it is possible to ensure a non-contact state that avoids contact between the belt and the cutting lines at both ends in the width direction of the rectangular cut objects of a plurality of sizes specified. Therefore, by relatively moving the laser cutting machine and the tension side of the belt upper surface in the longitudinal direction of the belt, it is possible to cut the cutting lines at both ends in the width direction of the prescribed rectangular cut pieces in a non-contact state. .

  In addition, by providing two or more second non-contact portions on the belt with an interval corresponding to the dimension between the cutting lines at both ends in the front-rear direction in each of the plurality of prescribed rectangular cuts, It is possible to ensure a non-contact state that avoids contact between the cutting lines at both ends in the front-rear direction of the rectangular cut object of size and the belt. Therefore, by relatively moving the laser cutting machine and the pulling side of the upper surface of the belt in the width direction of the belt, it is possible to cut the cutting lines at both ends in the front-rear direction of a plurality of prescribed rectangular cuts in a non-contact state. .

  In the conveyor device according to the present invention, it is desirable that the laser cutting machine is disposed so as to be able to advance and retract in the longitudinal direction and the width direction of the belt, facing the upper side of the belt upper surface on the pulling side. According to this, the belt and the object to be cut can be stopped, and only the laser cutting machine can be advanced and retracted in the longitudinal direction and the width direction of the belt to cut a plurality of sizes of rectangular cut objects. Compared with a structure in which the object to be cut is advanced and retracted in the longitudinal direction and the width direction, the apparatus structure can be greatly simplified.

  The laser cutting machine preferably includes exhaust hoods located on both the upper side and the lower side of the upper surface of the belt. According to this, even if smoke that is a combustion product is generated at the time of cutting of the square cutting line, the smoke can be quickly exhausted by the exhaust hoods located on both the upper and lower sides of the belt upper surface. It is possible to reliably avoid the formation of an oxide film due to the surface being exposed to smoke, and to suppress the deterioration of the quality of the rectangular cut material.

  The “front-rear direction” of the rectangular cut product is the same direction as the “longitudinal direction” of the belt, and refers to the direction indicated by the arrow Y in the figure.

  According to the present invention, an oxide film is generated on the cut surface by being able to cut the cutting lines at both ends in the width direction and both ends in the front-rear direction of a plurality of sizes of the rectangular cut object defined from the long cut object. Therefore, it is possible to prevent deterioration of the quality of the rectangular cut material.

  Hereinafter, preferred embodiments of a conveyor apparatus provided with a laser cutting machine according to the present invention will be described with reference to the drawings. 1 is a front view showing an embodiment of an apparatus according to the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a right side view of FIG. In these drawings, a conveyor apparatus 1 provided with a laser cutting machine includes a belt conveyor 2 and a laser cutting machine 3.

  The belt conveyor 2 includes a pair of left and right conveyor frames 4, a driving shaft 5, a driven shaft 6, a plurality of driving pulleys 7, a plurality of driven pulleys 8, a plurality of driving pulleys 7, and a plurality of endless thin wires wound around the driving pulleys 8. A driving motor 10 for rotating the width belt 9 and the driving shaft 5 is provided.

  The driving shaft 5 extends horizontally in the width direction (arrow X direction in FIG. 2), and both end portions thereof are rotatable to the downstream end portions (right end portions in FIGS. 1 and 2) of the pair of left and right conveyor frames 4. The driven shaft 6 extends horizontally in the width direction at a predetermined distance from the driving shaft 5 to the upstream side (left side) in the longitudinal direction (arrow Y direction in FIG. 2). A pair of conveyor frames 4 are rotatably mounted on upstream ends (left ends in FIGS. 1 and 2).

  In a plurality (for example, ten) of the driving pulleys 7, the other eight driving pulleys 7 excluding the pair of driving pulleys 7 a at both ends in the width direction are attached to the driving shaft 5 with a predetermined interval x therebetween. The pair of driving pulleys 7a at both ends in the direction are attached to the driving shaft 5 with an interval x1 smaller than the interval x with respect to the adjacent driving pulley 7. In the plural (for example, ten) driven pulleys 8, the other eight driven pulleys 8 except for the pair of driven pulleys 8 a at both ends in the width direction are attached to the driven shaft 6 at a predetermined interval x. The pair of driven pulleys 8a at both ends in the width direction are attached to the driven shaft 6 with an interval x1 smaller than the interval x with respect to the adjacent driven pulley 8b.

  The plurality of endless narrow belts 9 are made of ten strip-shaped stainless steel plates, which are wound around the driving pulleys 7a and 7b and the driven pulleys 8a and 8b. Accordingly, the pair of small intervals x1 is a width direction corresponding to a dimension Wx between the cutting lines L1 and L2 at both ends in the width direction of the rectangular cut object 21 having a prescribed size indicated by a two-dot chain line in FIGS. The two first non-contact portions 11 are configured over the entire area in the longitudinal direction of the belt conveyor 2 with an interval W (see FIG. 2).

  Further, the plurality of endless narrow belts 9 have a longitudinal direction corresponding to a dimension Ly between the cutting lines W1 and W2 at both ends in the front-rear direction of a rectangular cut object 21 having a prescribed size indicated by a two-dot chain line in FIGS. The pulling side 9a of the upper surface of the endless narrow belt 9 is detoured toward the loose side 9b of the lower surface of the endless narrow belt 9 by three bypass pulley units 12 with an interval L (see FIGS. 1 and 2). Thus, the two second non-contact portions 13 are configured over the entire width direction of the belt conveyor 2.

  1 to 3, the laser cutting machine 3 is opposed to the upper side of the pulling side 9 a of the upper surfaces of the plurality of endless narrow belts 9, so that the longitudinal direction (arrow Y direction) and the width direction of the endless narrow belt 9 ( Arranged in such a manner as to be able to advance and retract in the direction of arrow X). The laser cutting machine 3 includes a laser oscillator 30 that irradiates laser light downward in the vertical direction, and a carriage 31 on which the laser oscillator 30 is mounted.

  The carriage 31 is a gate type straddling a plurality of endless narrow belts 9 in the width direction, and horizontally between a pair of left and right leg portions 31a located at both ends in the width direction and the vicinity of the upper end portions of the leg portions 31a. An upper beam 31b that is installed and a lower beam 31c that is installed horizontally are provided between the vicinity of the lower ends of the pair of legs 31a. The lower end portions of the pair of leg portions 31a are connected to the pair of left and right rails 14 laid in the vicinity of both outer sides in the width direction of the belt conveyor 2 through the linear guide mechanism 31d. The belt conveyor 2 is assembled in the longitudinal direction (arrow Y direction) so as to freely advance and retract. The pair of left and right rails 14 are laid on the upper surfaces of the pair of left and right bases 15. Accordingly, the carriage 31 can be advanced and retracted in the longitudinal direction of the belt conveyor 2 with the pair of left and right rails 14 as a guide by a first drive source (not shown).

  The laser oscillator 30 is assembled to the upper beam 31b through a linear guide mechanism 30a so as to advance and retract in the width direction (arrow X direction) of the belt conveyor 2. Therefore, the laser oscillator 30 can advance and retreat in the width direction of the belt conveyor 2 with the upper beam 31b as a guide by a second drive source (not shown).

  On the other hand, the pair of left and right upper exhaust hoods 16 avoids the laser beam irradiation path 30l of the laser oscillator 30 and the downward opening approaches the pulling side 9a of the upper surfaces of the endless narrow belts 9 on the upper beam 31b of the carriage 31. It is installed in the let state. Further, one lower exhaust hood 17 is attached to the lower beam 31c in a state where the upward opening is brought close to the loose side 9b of the lower surfaces of the plurality of endless narrow belts 9. The upper exhaust hood 16 and the lower exhaust hood 17 are connected to an exhaust fan (not shown) via a flexible exhaust pipe 18. The operation of the drive motor 10, the laser oscillator 30, and a first drive source, a second drive source, an exhaust fan, etc. (not shown) is controlled by a control means (not shown) based on a preset operation program. .

  Next, a specified size (dimension in the width direction) indicated by a two-dot chain line from the strip-shaped object 20 indicated by a solid line in FIG. 4 by the conveyor device 1 provided with the laser cutting machine described in FIGS. The operation of intermittently cutting and transporting a plurality of quadrilateral cut objects 21 of Wx and the dimension Ly in the front-rear direction will be described.

  The strip-shaped workpiece 20 is placed on and held by the pulling side 9a of the upper surfaces of the plurality of endless narrow belts 9, and is downstream from the upstream side (the left side in FIGS. 1 and 2) of the plurality of endless narrow belts 9. The cutting line W1 at the front end of the quadrilateral cut object 21 that is conveyed toward the side (the right side of FIGS. 1 and 2) (arrow F) and that is cut first reaches the second non-contact portion 13 on the downstream side. At this point, the plurality of endless narrow belts 9 are stopped.

  As a result, the cutting line W2 at the rear end of the rectangular cut object 21 to be cut first corresponds to the second non-contact portion 13 on the upstream side, and the cutting lines L1 and L2 at both ends in the width direction are the two first non-contacts. In the state corresponding to the portion 11, that is, in the first cut quadrilateral cut 21, the contact between the cutting lines L 1 and L 2 at both ends in the width direction and the plurality of endless narrow belts 9 and the first cut quadrilateral cut 21 A non-contact state that avoids contact between the cutting lines W1, W2 at both ends in the front-rear direction and the plurality of endless narrow belts 9 is ensured.

  Here, a laser beam is irradiated from the laser oscillator 30 of the laser cutting machine 3 shown in FIGS. 1 to 3 to the cutting start point P of FIG. 4, and the carriage 31 is moved in the direction of the arrow Ya to cut a cutting line at one end in the width direction. After cutting L1, the laser oscillator 30 is moved in the arrow Xa direction at the first turning point P1, the cutting line W1 at the front end is cut, and the carriage 31 is moved in the arrow Yb direction at the second turning point P2. Then, the cutting line L2 at the other end in the width direction is cut.

  Further, the laser oscillator 30 is moved to the cutting start point P in the direction of the arrow Xb at the third direction turning point P3 to cut the cutting line W2 at the rear end, whereby the width direction of the first non-contact portion 11 shown in FIG. A first rectangular cut object 21 having a prescribed size having a dimension Wx in the width direction corresponding to the interval W and a dimension Ly in the front-rear direction corresponding to the interval L in the longitudinal direction of the second non-contact portion 13 It can cut and cut out from the cut material 20 in a non-contact state.

  When the cutting of the first rectangular cut object 21 is completed, the plurality of endless narrow belts 9 are operated to advance the band-shaped object 20 by one pitch Pi, and the front end of the rectangular cut object 21 to be cut next is cut. When the cutting line W1 reaches the second non-contact portion 13 on the downstream side, the plurality of endless narrow belts 9 are stopped. In the following, by repeating the same operation as described above, it is possible to sequentially cut and cut out the rectangular cut material 21 having the size defined as described above. The square cut object 21 and the skeleton 23 produced by cutting out the square cut object 21 of the prescribed size sequentially carried out to the downstream side of the belt conveyor 2 are appropriately collected by a collecting device (not shown) in a separated state. Is done.

  As described above, the non-contact state that avoids contact between the cutting lines L1 and L2 at both ends in the width direction and the cutting lines W1 and W2 at both ends in the front-rear direction and the plurality of endless narrow belts 9 is ensured. Since the rectangular cutting lines L1, L2, W1, and W2 are cut, the strip-shaped workpiece 20 has a single-layer structure composed of one resin film, and a plurality of layers in which two resin films are stacked. Even if the structure or the composite layer structure in which the liquid layer is sandwiched between the upper and lower resin films, the oxide film is easily formed on the cut surface. It is possible to reliably avoid the deterioration of the quality of the rectangular cut material.

  On the other hand, the laser cutter 3 is disposed so as to be able to advance and retreat in the longitudinal direction (arrow Y) and the width direction (arrow X) facing the upper side of the pulling side 9a of the upper surfaces of the plurality of endless narrow belts 9. A plurality of rectangular cut objects of a prescribed size by stopping the plurality of endless narrow belts 9 and the strip-shaped workpiece 20 and moving only the laser cutter 3 in the longitudinal direction (arrow Y) and the width direction (arrow X). 21 can be cut, so that the laser cutting machine 3 is stopped, and a plurality of endless narrow belts 9 and strip-shaped objects 20 are advanced and retracted in the longitudinal direction (arrow Y) and the width direction (arrow X). The device structure can be greatly simplified.

  On the other hand, a pair of left and right upper exhaust hoods 16 are attached to the carriage 31 of the laser cutter 3 with their respective downward openings approaching the pull sides 9a of the upper surfaces of the plurality of endless narrow belts 9. Since the two lower exhaust hoods 17 are attached with their upward openings approaching the loose side 9b of the bottom surface of the plurality of endless narrow belts 9, when cutting the square cutting lines L1, L2, W1, W2 Even if smoke, which is a combustion product, is generated, the smoke can be quickly exhausted by the pair of left and right upper exhaust hoods 16 and one lower exhaust hood 17, so that the oxide film formed by exposing the cut surface to the smoke Generation | occurrence | production can be avoided reliably and the quality degradation of the square cut material 21 of a regulation size can be suppressed.

  In the said embodiment, the prescription | regulation which has the dimension Wx of the width direction corresponded to the space | interval W of the width direction of the 1st non-contact part 11, and the dimension Ly of the front-back direction corresponded to the space | interval L of the longitudinal direction of the 2nd non-contact part 13. Although the description has been made with the configuration in which only the rectangular cut material 21 having the size is cut from the strip-shaped cut object 20 in a non-contact state and cut out, the present invention is not limited to the above-described embodiment. It is possible to cut the rectangular cut object 21 of another size that has been cut from the strip-shaped cut object 20 in a non-contact state.

  That is, the number of the endless narrow belts 9 is increased to increase the width direction (arrow X direction) dimension and the endless narrow belt 9 longitudinal direction (arrow Y direction) dimension. To do. Then, one or more first non-contact parts other than the two first non-contact parts 11 and one or more first non-contact parts other than the two second non-contact parts 13 are defined. By constructing corresponding to the quadrilateral cutting line of the quadrilateral cut object 21 of other sizes, the quadrangles of a plurality of sizes defined from the band-shaped cut object wider than the band-shaped cut object 20 described in the above embodiment. The cut material 21 can be cut and cut out in a non-contact state.

It is a front view which shows one Embodiment of the apparatus which concerns on this invention. It is a top view of FIG. It is a right view of FIG. It is a top view which shows one Embodiment of the state cut | judged and cut out from the strip | belt-shaped to-be-cut | judged thing the square cut material of a defined size. It is a perspective view which shows an example of the conventional conveyor belt | band | zone. It is a top view which expands and shows an example of the conventional conveyor body. FIG. 7 is a front view of FIG. 6.

Explanation of symbols

1 Conveyor device with laser cutting machine 3 Laser cutting machine 9 Narrow belt (endless belt)
9a Pull side of narrow belt 9b Loose side of narrow belt 11 First non-contact portion 13 Second non-contact portion 16 Upper exhaust hood 17 Lower exhaust hood 20 Strip-shaped cut object (cut object)
21 Rectangle cutout of specified size (Rectangle cutout)
L1, L2, W1, W2 Square cutting line

Claims (3)

The object to be cut is placed and transported intermittently on the pull side of the upper surface of the endless belt that moves intermittently, and the cutting line at the both ends in the width direction of the square and both ends in the front-rear direction are cut from the object to be cut by a laser cutting machine. In a conveyor device equipped with a laser cutting machine for cutting out a rectangular cut material,
The belt is provided with two or more first non-contact portions that avoid contact with both ends in the width direction of the quadrilateral cut material, and the upper surface of the belt is loosened from the lower surface of the endless belt. Two or more second non-contact portions that are detoured toward the side to avoid contact with both ends in the front-rear direction of the rectangular cut material are provided,
A conveyor apparatus provided with a laser cutting machine, wherein the laser cutting machine is disposed so as to be opposed to the upper side of the belt upper surface on the tension side and capable of relative movement in the longitudinal direction and the width direction. In the conveyor apparatus provided with the laser cutting machine according to claim 1,
A conveyor apparatus comprising a laser cutting machine, wherein the laser cutting machine is disposed so as to be opposed to the upper side of the upper surface of the belt on the pulling side so as to be able to advance and retreat in the longitudinal direction and the width direction of the belt. In the conveyor apparatus provided with the laser cutting machine of Claim 1 or Claim 2,
The said laser cutting machine is equipped with the exhaust hood located in the both upper side and lower side of the tension | pulling side of the said belt upper surface, The conveyor apparatus provided with the laser cutting machine characterized by the above-mentioned.

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