JP6068967B2 - Horizontal band saw machine - Google Patents

Description

The present invention relates to a horizontal type band saw machine that performs a cutting process on a workpiece that is conveyed and positioned in a conveyance direction while circulating an endless band saw blade.

  In recent years, various developments have been made on the band saw machine (see Patent Document 1). The configuration of the horizontal band saw machine according to the prior art will be described as follows.

  The horizontal type band saw machine according to the prior art includes a base that supports a material to be cut, and this base extends in a transport width direction orthogonal to the transport direction. A saw blade housing is provided on the upper side of the base so as to be movable in the vertical direction via a column. A pair of saw blade wheels can be rotated around a horizontal axis and conveyed to the saw blade housing. The pair of saw blade wheels are provided so as to be spaced apart from each other in the width direction, and are configured to wind and support a band saw blade such as a carbide band saw blade. Further, the saw blade housing is provided with a pair of saw blade guides spaced apart in the conveyance width direction, and the pair of saw blade guides twists the band saw blade so that the tooth tips of the band saw blade face downward. In this state, it is guided and supported in the cutting direction.

  Accordingly, by rotating the pair of saw blade wheels, the pair of saw blade guides are circulated while being guided and supported in a state where the band saw blade is twisted. The saw blade housing is moved downward (cutting direction) while circulating the band saw blade. Thereby, it can cut | disconnect with respect to the to-be-cut material conveyed and positioned by the conveyance direction, can take out a product from a to-be-cut material, and can carry it out.

  In addition, there exists a thing shown in patent document 2 as a prior art relevant to this invention.

JP 2009-297813 A JP-A-57-83319

  By the way, since the band saw blade is guided and supported by a pair of saw blade guides, as is well known, torsional stress acts repeatedly as a stress in addition to tensile stress and bending stress on the band saw blade during circulation. doing. Therefore, if the traveling speed of the band saw blade is increased in response to a request for improving the productivity of the band saw machine, the body portion of the band saw blade will be fatigued and become unable to cut earlier than the original tooth tip life of the band saw blade. is there.

  On the other hand, it is conceivable to extend the body fatigue life of the band saw blade by reducing the repeated stress acting on the band saw blade by guiding and supporting the band saw blade without twisting with a pair of saw blade guides (see Patent Document 2). As shown in FIG. 11, when the operator sees the product from the carry-out side (the take-out side), a part of the saw blade housing overlaps the end surface of the workpiece, and the cutting state of the workpiece is visually recognized ( However, there is a problem that the cutting work cannot be performed on the material to be cut.

  That is, there is a problem that it is difficult for the operator to visually recognize the cutting state of the material to be cut and to increase the body fatigue life of the band saw blade while improving the productivity by high-speed cutting.

  Therefore, an object of the present invention is to provide a band saw machine having a novel configuration that can solve the above-described problems.

A first feature of the present invention is a horizontal band saw machine that performs cutting on a workpiece that is transported and positioned in the transport direction while circulating an endless band saw blade, and a base that supports the workpiece. A base, a transport table provided upstream of the base in the transport direction, for transporting the material to be cut in the transport direction, and spaced apart from the base in the transport width direction perpendicular to the transport direction A pair of standing columns, a pair of columns movably provided between the columns and extending in the transport width direction, and projecting downward at both ends of the beam portions. to a saw blade housing having a wheel support which is formed, respectively it, parallel axial to the direction of movement of the saw blade housing to the distal end (tip side) of the pair of the wheel support portion in the saw blade housing (vertical Can be rotated around A saw blade wheel that is provided and wound around and supports the band saw blade, and is provided on the column side (side closer to the column) of the beam portion in the saw blade housing and spaced apart in the transport width direction, in a state in which the addendum of the band saw blade is facing downward, anda pair of saw blade guides for guiding supporting the cutting direction without twisting the portion close to the column in the band saw blade, viewed in the base By presenting a U shape whose shape is opened downstream in the transport direction, a product unloading space for unloading the product taken out from the material to be cut is formed inside the base, and the product unloading space is The gist of the present invention is that the band saw blade is located from the middle of a portion close to and far from the column to the downstream side in the transport direction of the portion far from the column when viewed in plan .

  In the specification and claims of the present application, “provided” means not only directly provided but also indirectly provided via another member.

  According to the first feature, by rotating the pair of saw blade wheels, the pair of saw blade guides are circulated while being guided and supported without twisting the band saw blade. The saw blade housing is moved downward (cutting direction) while circulating the band saw blade. Thereby, it can cut | disconnect with respect to the to-be-cut material conveyed and positioned in the said conveyance direction, and can take out a product from a to-be-cut material. In addition, after taking out a product from a to-be-cut material, the said saw blade housing is moved upwards and it is made to return to an appropriate standby position.

Here, the saw blade housing is provided with the wheel support to their respective formed to project said beam portion extending into the conveying width direction, and the downward across said beam portion, said saw blade Since the saw blade wheel is provided at the tip of the pair of wheel support portions in the housing so as to be rotatable around an axis parallel to the moving direction of the saw blade housing, the band saw blade is supported by the pair of saw blade guides. Even if the operator guides and supports the cutting direction without twisting, the saw blade housing does not partially overlap the end surface of the workpiece when viewed from the product take-out side (the carry-out side).

  The pair of saw blade guides provided on the column side of the beam portion in the saw blade housing guides and supports the portion of the band saw blade close to the column, so that the band saw is supported by a pair of other saw blade guides. Compared with the case of guiding and supporting a portion of the blade far from the column, a moment determined by the back component force of the upward cutting resistance acting on the band saw blade and the saw blade housing and the positional relationship of the column during the cutting process. Can be small. Thereby, the vibration of the band saw blade and the saw blade housing during the cutting process can be suppressed, and the vertical load fluctuation (displacement) received by the band saw blade and the saw blade housing at the end of the cutting process can be reduced. .

  A second feature of the present invention is a band saw machine that performs cutting on a workpiece that is transported and positioned in the transport direction while circulating an endless band saw blade, and a base that supports the workpiece. The beam part is movable in the conveyance width direction perpendicular to the conveyance direction with respect to the base, and extends in the vertical direction (vertical direction), and at both ends of the beam part to one side in the conveyance width direction. A saw blade housing provided with wheel support portions integrally formed so as to protrude, and the conveying width direction (in other words, the saw blade) at the tip (tip side) of the pair of wheel support portions in the saw blade housing A saw blade wheel which is rotatably provided around an axis (horizontal axis) parallel to the movement direction of the housing and supports the band saw blade by winding, and a vertical direction on the beam portion of the saw blade housing In A pair of saw blade guides provided so as to guide and support in the cutting direction without twisting the band saw blade in a state where the tooth tips of the band saw blade face one side in the conveyance width direction. The gist.

  According to the second feature, by rotating the pair of saw blade wheels, the pair of saw blade guides are circulated while being guided and supported without twisting the band saw blade. The saw blade housing is moved to one side (cutting direction) in the transport width direction while circulating the band saw blade. Thereby, it can cut | disconnect with respect to the to-be-cut material conveyed and positioned in the said conveyance direction, can take out a product from a to-be-cut material, and can carry it out to a conveyance direction. In addition, after taking out a product from a to-be-cut material, the said saw blade housing is moved to the other side of the said conveyance width direction, and is returned to the suitable standby position.

  Here, the saw blade housing includes the beam portion extending in the vertical direction, and the wheel support portions integrally formed at both ends of the beam portion so as to protrude to one side in the conveyance width direction, Since the saw blade wheel is provided at the tip of the pair of wheel support portions in the saw blade housing so as to be rotatable around an axis parallel to the conveyance width direction, the pair of saw blade guides allow the band saw blade to be rotated. Even if the operator guides and supports the cutting direction without twisting, the saw blade housing does not partially overlap the end surface of the material to be cut when viewed from the product take-out side (the take-out side).

  According to the first and second features of the present invention, even when the band saw blade is guided and supported in the cutting direction without twisting by the pair of saw blade guides, when the operator sees from the product unloading side, Since part of the saw blade housing does not overlap with the end face of the material to be cut, the band saw blade has a fatigue life while improving the productivity of the band saw machine by increasing the traveling speed of the band saw blade. While being able to extend, the operator can perform cutting processing on the workpiece while visually confirming (monitoring) the cutting status of the workpiece.

  Further, according to the first feature of the present invention, the vertical load applied to the band saw blade and the saw blade housing at the end of the cutting process is suppressed while the vibration of the band saw blade and the saw blade housing is suppressed during the cutting process. Since fluctuations can be reduced, high-accuracy cutting can be performed to improve the product accuracy of the product, and the band saw blade can be sufficiently prevented from chipping and the life of the band saw blade can be improved.

FIG. 1 is a front view of a horizontal type band saw machine according to a first embodiment of the present invention. FIG. 2 is a side view of the horizontal band saw machine according to the first embodiment of the present invention. FIG. 3 is a plan view of the horizontal type band saw machine according to the first embodiment of the present invention, in which a machining table is omitted. FIG. 4 is a front view of a horizontal band saw machine according to the second embodiment of the present invention. FIG. 5 is a side view of a horizontal band saw machine according to the second embodiment of the present invention. FIG. 6 is a plan view of a horizontal type band saw machine according to the second embodiment of the present invention, in which a machining table is omitted. FIG. 7 is a view taken along line VII-VII in FIG. FIG. 8 is a front view of a vertical band saw machine according to the third embodiment of the present invention. FIG. 9 is a view taken along line IX-IX in FIG. FIG. 10 is a plan view of a vertical band saw machine according to the third embodiment of the present invention, in which the conveyance rollers and the like are omitted. FIG. 11 is a diagram for explaining the problem of the present invention.

  First to third embodiments of the present invention will be described with reference to the drawings. In the drawings, “FF” is the forward direction, “FR” is the backward direction, “L” is the left direction, “R” is the right direction, “U” is the upward direction, and “D” is the upward direction. Pointing down each direction.

(First embodiment of the present invention)
As shown in FIGS. 1 to 3, the horizontal band saw machine 1 according to the first embodiment of the present invention circulates an endless band saw blade B while being conveyed and positioned in the conveyance direction (forward direction). A cutting process is performed on the cutting material W. And the concrete structure of the horizontal type | mold band saw machine 1 which concerns on 1st Embodiment of this invention is as follows.

  The horizontal band saw machine 1 includes a base 3 extending in the transport width direction (left-right direction) orthogonal to the transport direction, and the base 3 includes a processing table 5 that supports the workpiece W. Yes. A main body vise mechanism 7 that sandwiches the material to be cut W is provided on the front side (downstream in the transport direction) of the cutting position CP on the upper surface (upper side) of the base 3. A fixed vise 9 and a movable vise 11 that faces the fixed vice 9 and is movable in the conveyance width direction are provided.

  A rear frame 13 is provided on the rear side of the base 3, and a rear table 15 is provided above the rear frame 13 as a transfer table that supports the workpiece W so as to be movable in the transfer direction. The rear table 15 includes a plurality of transport rollers 17 that are arranged at intervals in the transport direction and are rotatable around an axis that is parallel to the transport width direction. A pair of guide rails 19 and 21 extending in the transport direction are provided below the rear table 15 in the rear frame 13.

  A rear slider 23 as a transport slider is guided and supported by the pair of guide rails 19 and 21 so as to be movable in the transport direction. In other words, the rear slider 13 is supported by the pair of guide rails 19 and 21 on the rear frame 13. 21 is provided so as to be movable in the conveying direction. The rear slider 23 is moved in the transport direction by driving a rear slider electric motor (not shown) and a ball screw (not shown) or a rear slider hydraulic cylinder (not shown) provided at appropriate positions on the base 3. It is supposed to move. The rear slider 23 is provided with a rear vice mechanism 25 as a conveyance vice mechanism for sandwiching the workpiece W. The rear vice mechanism 25 is opposed to the fixed vice 27 and the fixed vice 27 and has a conveyance width. A movable vise 29 that can move in the direction is provided.

  A pair of columns 31 and 33 are provided on the back surface (rear surface) of the base 3 so as to be separated from each other in the transport width direction. Each column 31 and 33 has a guide rail (LM guide) extending in the vertical direction. 35 and 37 are provided. Further, a connecting plate 39 as a connecting member is connected between the upper part of one column 31 and the upper part of the other column 33. Note that another connecting member (not shown) may be provided between the intermediate part of one column 31 and the intermediate part of the other column 33.

  A horizontal saw blade housing 41 is provided between the pair of columns 31 and 33 so as to be movable in the vertical direction. In addition, the saw blade housing 41 is formed integrally and formed in a box shape so as to extend in the conveying width direction and be formed in a box shape, and to protrude downward at both ends of the beam portion 43. Wheel support portions 45 and 47 are provided, and the saw blade housing 41 has a U-shape in which the saw blade housing 41 is opened from the bottom. Sliders (LM sliders) 49 and 51 that are guided and supported by the one guide rail 35 in the vertical direction are respectively provided on the upper and lower portions of the rear surface of the one wheel support portion 45. In other words, the upper and lower portions of the back surface of one wheel support portion 45 are guided and supported by one column 31 in the vertical direction via one guide rail 35 and a pair of sliders 49 and 51. Similarly, sliders (LM sliders) 53 and 55 that are guided and supported by the other guide rail 37 in the vertical direction are respectively provided on the upper and lower portions of the back surface of the other wheel support portion 47. In other words, the upper and lower portions of the back surface of the other wheel support portion 47 are guided and supported by the other column 33 in the vertical direction via the other guide rail 37 and the other pair of sliders 53 and 55. Further, the saw blade housing 41 is moved up and down by driving a housing electric motor (not shown) and a ball screw (not shown) or a housing hydraulic cylinder (not shown) provided at appropriate positions on the base 3. It has become.

  Saw blade wheels 57 and 59 rotate around a vertical axis (axis parallel to the moving direction of the saw blade housing 41) at the tip (tip side) of the pair of wheel support portions 45 and 47 in the saw blade housing 41. The pair of saw blade wheels 57 and 59 are provided so as to be capable of winding and supporting the band saw blade B, respectively. Here, the pair of saw blade wheels 57 and 59 are rotated by driving a wheel electric motor (not shown) provided at an appropriate position of the saw blade housing 41, and a predetermined tension is applied to the band saw blade B. Therefore, the position of one saw blade wheel 57 can be adjusted in the conveyance width direction by driving a wheel hydraulic cylinder (not shown) provided at an appropriate position of the saw blade housing 41.

  A pair of saw blade guides 61, 63 are provided on the column 31, 33 side (rear side) of the beam portion 43 in the saw blade housing 41 so as to be separated from each other in the conveyance width direction, and the pair of saw blade guides 61, 63. Is to guide and support a portion Bn of the band saw blade B close to the columns 31 and 33 in the cutting direction without twisting with the tooth tip of the band saw blade B facing downward. Here, the position of one saw blade guide 61 can be adjusted in the conveyance width direction in accordance with the size of the material W to be cut.

  Then, the effect | action and effect of 1st Embodiment of this invention are demonstrated.

  The workpiece W is supported on the rear table 15, and the workpiece W is sandwiched by the rear vice mechanism 25. Next, the rear vice mechanism 25 is moved integrally with the rear slider 23 in the transport direction by driving the rear slider electric motor and a ball screw, so that the workpiece W is transported and positioned in the transport direction. Then, the material to be cut W is clamped by the main body vice mechanism 7 and fixed to the processing table 5.

  After the workpiece W is fixed to the processing table 5, the pair of saw blade wheels 57 and 59 are rotated by driving the electric motor for the wheel, so that the column in the band saw blade B by the pair of saw blade guides 61 and 63. The portion Bn close to 31 and 33 is circulated while being guided and supported without twisting. Then, while circulating the band saw blade B, the saw blade housing 41 is moved downward (cutting direction) by driving an electric motor for housing and a ball screw. Thereby, it can cut | disconnect with respect to the to-be-cut material W conveyed and positioned by the conveyance direction, can take out a product from the to-be-cut material W, and can carry it out to a conveyance direction. In addition, after taking out the product from the workpiece W, the saw blade housing 41 is moved upward by driving the housing electric motor and a ball screw, and returned to an appropriate standby position.

  Here, the saw blade housing 41 includes a beam portion 43 extending in the conveyance width direction, and wheel support portions 45 and 47 integrally formed so as to protrude downward at both ends of the beam portion 43, respectively. Since the saw blade wheels 57 and 59 are provided at the front ends of the pair of wheel support portions 45 and 47 in the shaft 41 so as to be rotatable around the axis parallel to the moving direction of the saw blade housing 41, the pair of saw blade guides 61. 63, even if the band saw blade B is guided and supported in the cutting direction without twisting, the saw blade housing 41 is partially covered when viewed from the product carry-out side (front side toward the paper surface in FIG. 1). It does not overlap the end surface of the cutting material W, and visibility is not hindered.

  In addition to the above-described operation, a portion Bn of the band saw blade B near the columns 31, 33 is guided and supported by a pair of saw blade guides 61, 63 provided on the column 31, 33 side of the beam portion 43 in the saw blade housing 41. Therefore, the band saw blade B and the saw blade housing 41 during the cutting process are compared with the case where the portion Bf far from the columns 31 and 33 of the band saw blade B is guided and supported by a pair of other saw blade guides (not shown). Thus, the moment determined by the positional relationship between the columns 31 and 33 and the back component force of the upward cutting force acting on can be reduced. Thereby, the vibration of the band saw blade B and the saw blade housing 41 during the cutting process can be suppressed, and the vertical load fluctuation (displacement) received by the band saw blade B and the saw blade housing 41 at the end of the cutting process can be reduced. .

  Further, since the beam portion 43 and each wheel support portion 47 in the saw blade housing 41 are each configured in a box shape, the rigidity of the saw blade housing 41 is increased, and the band saw blade B is given a predetermined force by driving the hydraulic cylinder for wheels. Deformation such as twisting or bending of the saw blade housing in a state where tension is applied can be sufficiently suppressed.

  Therefore, according to the first embodiment of the present invention, even if the band saw blade B is guided and supported in the cutting direction without being twisted by the pair of saw blade guides 61 and 63, when the operator sees from the product carry-out side, Since part of the saw blade housing 41 does not overlap the end surface of the workpiece W, the body of the band saw blade B is improved while improving the productivity of the horizontal band saw machine 1 by increasing the traveling speed of the band saw blade B. The fatigue life can be extended, and the operator can perform a cutting process on the workpiece W while visually checking (monitoring) the cutting status of the workpiece W.

  In addition, the vibration of the band saw blade B and the saw blade housing 41 during the cutting process can be suppressed, and the vertical load fluctuation received by the band saw blade B and the saw blade housing 41 at the end of the cutting process can be reduced. Thus, it is possible to improve the product accuracy of the product and to sufficiently prevent the chipping or the like of the band saw blade B, thereby improving the life of the band saw blade B. In particular, since the deformation of the saw blade housing 41 in a state where a predetermined tension is applied to the band saw blade B can be sufficiently suppressed, the above-described effect can be further enhanced.

(Second embodiment of the present invention)
As shown in FIGS. 4 to 7, the horizontal band saw machine 65 according to the second embodiment of the present invention circulates an endless band saw blade B while being conveyed and positioned in the conveyance direction (forward direction). a performs the cutting to the cutting material W, band saw 1 according to the first embodiment of the present invention has the same configuration (see FIG. 1), the configuration of the horizontal band saw machine 65 Of these, only the parts different from the configuration of the horizontal band saw 1 will be described. Of the plurality of components in the horizontal band saw machine 65, those corresponding to the components in the horizontal band saw machine 1 are denoted by the same reference numerals in the drawing.

  The plan view shape of the base 3 is U-shaped with the front side (downstream in the transport direction) open, and the product WA taken out from the workpiece W is transported downward to the base 3. The product carry-out space DS is formed. Further, the product carry-out space DS is located from the middle of the portion Bn close to the columns 31 and 33 in the band saw blade B and the far portion Bf to the front side of the portion Bf far from the columns 31 and 33 in the band saw blade B when viewed in plan. Yes.

  On the rear side (upstream side in the transport direction) of the product carry-out space DS on the upper surface of the base 3, a product shooter 67 for carrying out the product WA downward (obliquely downward) is arranged around an axis parallel to the transport width direction. The product shooter 67 is located in the middle of the portion Bn close to the columns 31 and 33 and the portion Bf far from the band saw blade B when seen in a plan view. Further, the product shooter 67 is swung by driving a shooter cylinder provided at an appropriate position on the base 3 so that the front side is inclined lower than the lower side (the posture shown by a solid line in FIG. 5) and the horizontal posture. (The posture shown by the phantom line in FIG. 5) is switched. Here, the product WA sent to the product carry-out space DS is collected in the product collection box 69. Instead of configuring the product shooter 67 to be swingable around an axis parallel to the conveyance width direction, the product shooter 67 may be always positioned in an inclined posture.

  On the rear side of the cutting position CP on the upper surface of the base 3 (upstream side in the conveying direction), another main body vice mechanism 71 that sandwiches the material to be cut W is provided. A fixed vise 73 and a movable vice 75 facing the fixed vise 73 and movable in the transport width direction are provided.

  And according to 2nd Embodiment of this invention, in addition to having the effect | action and effect similar to 1st Embodiment of this invention, there exist the following effect | actions and effects.

  A product carry-out space DS is formed in the base 3, and when the product carry-out space DS is viewed in plan, the middle of the band saw blade B near the columns 31 and 33 and the far part Bf from the middle of the band saw blade B to the columns 31 and 33 in the band saw blade B. Since it is located toward the front side of the distant portion Bf, immediately after the product WA is taken out from the workpiece W by cutting, the product shooter 67 does not interfere with the distant portion Bf from the columns 31 and 33 in the band saw blade B. The product WA can be carried out downward. Therefore, in the case where the cutting process is continuously performed on the workpiece W, the productivity of the horizontal band saw machine 65 is reduced by shortening a series of work times including the conveyance positioning and the cutting process of the workpiece W. Can be increased.

(Third embodiment of the present invention)
A third embodiment of the present invention will be described with reference to FIGS.

  As shown in FIGS. 8 to 10, the vertical band saw machine 77 according to the second embodiment of the present invention is transported and positioned in the transport direction (forward direction) while circulating the endless band saw blade B. A cutting process is performed on the workpiece W. The specific configuration of the vertical band saw 77 according to the third embodiment of the present invention is as follows.

  The vertical band saw machine 77 includes a base 79 extending in a direction parallel to the conveying direction (front-rear direction). The base 79 has a processing table 81 for supporting the workpiece W on the front side. I have. In addition, a main body vise mechanism 83 that sandwiches the workpiece W is provided at the front portion of the base 79. The main body vise mechanism 83 is opposed to the fixed vise 85 and the fixed vise 85 and in the transport direction. A movable vise 87 is provided that is movable in the orthogonal conveyance width direction (left-right direction).

  A rear table 89 for supporting the workpiece W so as to be movable in the transport direction is provided on the rear side of the processing table 81 in the base 79, and the rear tables 89 are arranged at intervals in the transport direction. A plurality of transport rollers 91 that are rotatable about an axis parallel to the transport width direction are provided. A pair of guide rails 93 and 95 extending in the transport direction are provided below the rear table 89 in the base 79. Further, a rear slider 97 is guided and supported by the pair of guide rails 93 and 95 so as to be movable in the transport direction. The rear slider 97 is an electric motor for a rear slider (appropriate position of the base 79). It moves in the transport direction by driving a ball screw or a rear slider hydraulic cylinder (not shown) and the like. The rear slider 97 is provided with a rear vice mechanism 99 that sandwiches the workpiece W. The rear vice mechanism 99 is opposed to the fixed vise 101 and the fixed vise 101 and is movable in the conveyance width direction. A movable vise 103 is provided.

  On the front side of the base 79, a front table 105 that supports the product WA taken out from the workpiece W so as to be movable in the conveying direction is provided via a plurality of support columns 107. The front table 105 is arranged in the conveying direction. Are provided with a plurality of conveying rollers 109 which are arranged at intervals and are rotatable around an axis parallel to the conveying width direction. A front frame 111 is provided on the left side of the front table 105 on the front side of the base 79. The front frame 111 is provided with a pair of guide rails 113 and 115 extending in the transport direction. Further, a front slider 117 is guided and supported by the pair of guide rails 113 and 115 so as to be movable in the transport direction. The front slider 117 is a front slider electric motor (which is provided at an appropriate position on the front frame 111). It moves in the transport direction by driving a ball screw (not shown) or a front slider hydraulic cylinder (not shown) or the like. The front slider 117 is provided with a front vice mechanism 119 that clamps a product WA (including a part corresponding to a product before being taken out from the workpiece W). The front vice mechanism 119 is a fixed vise 121. And a movable vise 123 that faces the fixed vise 121 and is movable in the conveyance width direction.

  A gate-shaped support frame 125 is erected on the front portion of the base 79 so as to straddle the rear table 89. The horizontal portion 125a of the support frame 125 and the front side (front surface) of the base 79 are transported. Guide rails 127 and 129 extending in the width direction are provided, respectively. In addition, a vertical saw blade housing 131 is guided and supported by the pair of guide rails 127 and 129 so as to be movable in the conveyance width direction. In other words, a vertical saw blade is disposed on the front side of the base 79. A housing 131 is provided so as to be movable in the conveyance width direction via a pair of guide rails 127 and 129 and a support frame 125. Further, the saw blade housing 131 is integrally formed with a beam portion 133 extending in the vertical direction (vertical direction), and projecting toward one side (left direction) in the conveyance width direction at both ends of the beam portion 133. The wheel support part 135,137 of a type | mold is provided. The saw blade housing 131 moves in the conveyance width direction by driving a housing electric motor (not shown) and a ball screw (not shown) or a housing hydraulic cylinder (not shown) provided at appropriate positions on the base 79. It is supposed to be.

  Saw blade wheels 139 and 141 are axially parallel to the conveying width direction (in other words, the moving direction of the saw blade housing 131) at the tips (tip sides) of the pair of wheel support portions 135 and 137 in the saw blade housing 131. A pair of saw blade wheels 139 and 141 are provided so as to be able to rotate around them, and the band saw blade B is wound around and supported. Here, the pair of saw blade wheels 139, 141 are configured to rotate by driving a wheel electric motor (not shown) provided at an appropriate position of the base 79. In order to apply tension to the band saw blade B, the position can be adjusted in the vertical direction.

  The beam portion 133 in the saw blade housing 131 is provided with a pair of saw blade guides 143 and 145 that are spaced apart in the vertical direction. The band saw blade B is guided and supported in the cutting direction without twisting in a state of facing one side of the direction. Here, the position of one saw blade guide 143 can be adjusted in the vertical direction according to the size of the workpiece W.

  Then, the effect | action and effect of 3rd Embodiment of this invention are demonstrated.

  The material to be cut W is supported on the rear table 89, and the material to be cut W is sandwiched by the rear vice mechanism 99. Next, the rear vice mechanism 99 is moved in the conveying direction integrally with the rear slider 97 by driving the rear slider electric motor and a ball screw, thereby conveying and positioning the workpiece W in the conveying direction. Then, the material to be cut W is clamped by the main body vice mechanism 83 and fixed to the processing table 81. Further, the material to be cut W is clamped by the front vice mechanism 119 and fixed to the front table 105.

  After the material to be cut W is sandwiched by the main body vice mechanism 83 and the front vice mechanism 119, the pair of saw blade guides 143 and 145 are rotated by the pair of saw blade guides 143 and 145 by rotating the pair of saw blade wheels 139.121 by driving the electric motor for the wheel. The blade B is circulated while being guided and supported without twisting. Then, while circulating the band saw blade B, the saw blade housing 131 is moved to one side (left direction) in the conveyance width direction by driving the housing electric motor and the ball screw. Thereby, it is possible to perform a cutting process on the workpiece W that is transported and positioned in the transport direction, and take out the product WA from the workpiece W.

  After the product WA is taken out from the workpiece W, the front vice mechanism 119 is moved integrally with the front slider 117 in the transport direction by driving the front slider electric motor and a ball screw, so that the product WA is transported in the transport direction. (Convey). Further, the saw blade housing 131 is moved to the other side (right direction) in the transport width direction by driving the housing electric motor and a ball screw, and returned to an appropriate standby position.

  Here, the saw blade housing 131 includes a beam portion 133 extending in the vertical direction, and wheel support portions 135 and 137 integrally formed at both ends of the beam portion 133 so as to protrude to one side in the conveyance width direction, Since the saw blade wheels 139 and 141 are provided at the tips of the pair of wheel support portions 135 and 137 in the saw blade housing 131 so as to be rotatable around the axis parallel to the conveyance width direction, respectively, the pair of saw blade guides 143 and 143 are provided. Even if the band saw blade B is guided and supported by 145 in the cutting direction without twisting, when the operator sees the product WA from the carry-out side (the take-out side), a part of the saw blade housing 131 is separated from the end surface of the workpiece W. There is no overlap and visibility is not hindered.

  Therefore, according to the third embodiment of the present invention, the body fatigue life of the band saw blade B can be extended while improving the productivity of the vertical band saw machine 77 by increasing the traveling speed of the band saw blade B. At the same time, the operator can perform cutting processing on the workpiece W while visually confirming (monitoring) the cutting state of the workpiece W.

  In addition, this invention is not restricted to description of the above-mentioned embodiment, It can implement in a various aspect. Further, the scope of rights encompassed by the present invention is not limited to these embodiments.

B Band saw blade Bn Band saw blade near the column Bf Band saw blade far from the column W Material WA Product CP Cutting position 1 Band saw 3 Base 5 Work table 31 Column 33 Column 41 Saw blade housing 43 Beam part 45 Wheel Support portion 47 Wheel support portion 57 Saw blade wheel 59 Saw blade wheel 61 Saw blade guide 63 Saw blade guide 65 Band saw machine DS Product carry-out space 67 Product shooter 69 Product collection box 77 Band saw machine 79 Base 81 Work table 131 Saw blade housing 133 Beam part 135 Wheel support part 137 Wheel support part 139 Saw blade wheel 141 Saw blade wheel 143 Saw blade guide 145 Saw blade guide

Claims (6)

In a horizontal type band saw machine that performs a cutting process on a workpiece that is conveyed and positioned in the conveyance direction while circulating an endless band saw blade,
A base supporting the material to be cut;
A transport table provided on the upstream side in the transport direction of the base, for transporting the material to be cut in the transport direction;
A pair of columns erected on the base in the conveying width direction perpendicular to the conveying direction;
Provided to be vertically movable over between a pair of the column, the beam portion extending into the conveying width direction, and the wheel support which is, respectively it formed to protrude downward at both ends of the beam portion A saw blade housing with a section;
A saw blade wheel that is provided at the tip of the pair of wheel support portions in the saw blade housing so as to be rotatable around an axis parallel to the moving direction of the saw blade housing, and winds and supports the band saw blade;
Twist a portion of the band saw blade close to the column with the tooth tip of the band saw blade facing downwardly provided on the column side of the beam portion of the saw blade housing in the conveying width direction. A pair of saw blade guides that guide and support in the cutting direction without ,
A product unloading space for unloading the product taken out from the material to be cut is formed on the inner side of the base by forming a U-shape in which the shape of the base in plan view opens the downstream side in the transport direction, The product carry-out space is located from the middle of a portion of the band saw blade close to the column and a portion far from the column to a downstream side in the transport direction of a portion far from the column when viewed in plan. The horizontal band saw machine described in 1. 2. The horizontal band saw machine according to claim 1 , wherein the saw blade housing has a U-shape with a lower side opened when viewed from the front. Provided on the base, the band saw is located at an intermediate portion and a far portion close to the column in the blade, according to claim 1 or claim, characterized by comprising the product chute for unloading the product in a plan view horizontal band saw machine according to 2. The back surface of one of the wheel support portions in the saw blade housing is guided and supported by one column so as to be movable in the vertical direction, and the back surface of the other wheel support portion in the saw blade housing is vertically supported by the other column. The horizontal type band saw according to any one of claims 1 to 3 , wherein the horizontal band saw machine is guided and supported. The horizontal band saw according to any one of claims 1 to 4 , wherein the beam portion and each wheel support portion in the saw blade housing are each configured in a box shape. The horizontal band saw machine according to any one of claims 1 to 5 , further comprising a connecting member that connects the one column and the other column.

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