CN111408794A - Band sawing machine - Google Patents
Band sawing machine Download PDFInfo
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- CN111408794A CN111408794A CN202010059360.4A CN202010059360A CN111408794A CN 111408794 A CN111408794 A CN 111408794A CN 202010059360 A CN202010059360 A CN 202010059360A CN 111408794 A CN111408794 A CN 111408794A
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 238000005520 cutting process Methods 0.000 claims abstract description 17
- 239000000428 dust Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035772 mutation Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D55/00—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts
- B23D55/02—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of frames; of tables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D55/00—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D55/00—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts
- B23D55/06—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of drives for strap saw blades; of wheel mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D55/00—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts
- B23D55/06—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of drives for strap saw blades; of wheel mountings
- B23D55/065—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of drives for strap saw blades; of wheel mountings of wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D59/00—Accessories specially designed for sawing machines or sawing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D59/00—Accessories specially designed for sawing machines or sawing devices
- B23D59/006—Accessories specially designed for sawing machines or sawing devices for removing or collecting chips
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Abstract
The invention discloses a band sawing machine, and aims to provide a band sawing machine which can effectively improve the strength and stability of a saw beam structure so as to improve the sawing stability and sawing efficiency of the band sawing machine. The saw frame is provided with a vertical guide rail; the gantry type saw beam frame comprises a left vertical beam, a right vertical beam and a connecting cross beam for connecting the two vertical beams, and the gantry type saw beam frame slides up and down along a vertical guide rail; the lifting device is used for driving the gantry saw beam frame to move up and down along the vertical guide rail; the saw band cutting mechanism comprises a driving saw wheel, a driven saw wheel, a saw band, a speed reducing motor and a tensioning device, wherein the saw band surrounds the driving saw wheel and the driven saw wheel, the speed reducing motor is used for driving the driving saw wheel to rotate, the tensioning device is used for tensioning the saw band on the driving saw wheel and the driven saw wheel, the speed reducing motor comprises a speed reducer shell, the speed reducer shell is fixed on one vertical beam, the tensioning device comprises a tensioning device shell, and the tensioning device shell is fixed on the other vertical beam.
Description
Technical Field
The invention relates to a sawing machine, in particular to a band sawing machine.
Background
Band sawing machines are one of the most widely used sawing tools at present. As shown in fig. 1 and 2, the conventional band sawing machine generally comprises a saw frame 1, a saw beam 2a and a saw band cutting mechanism, wherein a gantry-type column sleeve frame is arranged on the saw frame, and the gantry-type column sleeve frame comprises two vertical guide rods 1.1 and column sleeves 1.2 which are slidably sleeved on the vertical guide rods; the column sleeves on the two vertical guide rods are connected with the saw beam through bolts so that the saw beam can lift along the vertical guide rods, and beam plates 2.0 are arranged on the left side and the right side of the saw beam; the saw band cutting mechanism comprises a driving saw wheel 3.1, a driven saw wheel 3.2, a saw band 3.3, a speed reducing motor 3.5 and a tensioning device 3.4, wherein the saw band surrounds the driving saw wheel and the driven saw wheel, the speed reducing motor is used for driving the driving saw wheel to rotate, the tensioning device is used for tensioning the saw band on the driving saw wheel and the driven saw wheel, the speed reducing motor is installed on one beam plate through bolts, and the tensioning device is installed on the other beam plate through bolts. The existing band sawing machine has the advantages that the rigidity of the saw beam is low, the stability is poor, the saw beam can be bent in long-term use, and the column sleeve, the speed reducing motor, the tensioning device, the saw wheel and the saw band are all arranged on the saw beam, so that the saw beam of the existing band sawing machine not only influences the stability of saw cutting and influences the improvement of saw cutting efficiency, but also influences the normal work of the band sawing machine once the saw beam is bent.
On the other hand, as shown in fig. 1 and 2, the driving saw wheel and the driven saw wheel of the current band sawing machine are mounted on the beam plate, and the upper portions of the driving saw wheel 3.1 and the driven saw wheel 3.2 are inclined toward the rear side of the band sawing machine, accordingly, the rear side of the upper saw band section in the saw band above the driving saw wheel and the driven saw wheel is inclined downward in the width direction of the saw band (the rear side of the upper saw band section is the side of the upper saw band section close to the rear side of the band sawing machine), so that during the sawing process, a part of sawdust is accumulated between the upper saw band section and the beam plate, which causes easy adhesion of sawdust on the saw teeth of the saw band, which not only seriously affects the sawing stability and the service life of the saw band, but also affects the flatness of the cut section of the workpiece.
Disclosure of Invention
The invention aims to provide a band sawing machine which can effectively improve the sawing stability and the sawing efficiency.
The second purpose of the present invention is to provide a band sawing machine, which can effectively solve the problems that in the sawing process of the band sawing machine in the prior art, a part of sawdust is accumulated between the upper saw band section and the beam plate, so that sawdust is easily adhered to the sawteeth of the saw band, which affects the sawing stability of the saw band and the service life of the saw band, and affects the flatness of the cut section of the workpiece after sawing.
The technical scheme of the invention is as follows:
a band saw machine comprising: the saw frame is provided with a vertical guide rail; the gantry type saw beam frame comprises a left vertical beam, a right vertical beam and a connecting cross beam for connecting the two vertical beams, and the gantry type saw beam frame slides up and down along a vertical guide rail; the lifting device is used for driving the gantry saw beam frame to move up and down along the vertical guide rail; the saw band cutting mechanism is arranged on the gantry saw beam frame and comprises a driving saw wheel, a driven saw wheel, a saw band surrounding the driving saw wheel and the driven saw wheel, a speed reducing motor for driving the driving saw wheel to rotate and a tensioning device for tensioning the saw band on the driving saw wheel and the driven saw wheel, the speed reducing motor comprises a speed reducer shell, the speed reducer shell is fixed on a vertical beam, and the driving saw wheel is rotatably arranged on the speed reducer shell; the tensioning device comprises a tensioning device shell, and the tensioning device shell is fixed on the other vertical beam; the driven saw wheel is arranged on the tensioning device.
According to the band sawing machine, on one hand, the gantry type saw beam frame with higher rigidity and strength is integrally connected, so that the strength and stability of the structure of the saw beam are effectively improved, the bending and displacement mutation of the saw beam in long-term use are reduced, and the stability of the saw frame in feeding motion is increased, so that the sawing stability of the band sawing machine is improved, meanwhile, the gantry type saw beam frame is good in structural strength and stability, so that the sawing linear speed can be effectively improved, the sawing efficiency is improved, particularly the sawing efficiency of thick materials and hard metals can be improved, the production efficiency is greatly improved, and the economy of sawing is improved; on the other hand, because the gear motor is directly fixed on one vertical beam through the reducer shell, and the tension device is directly fixed on the other vertical beam through the tension device shell, the gantry saw beam frame of the scheme can save beam plates on the saw beam in the prior art, thereby reducing the manufacturing of the saw beam and reducing the manufacturing cost; simultaneously, with among the band sawing machine of prior art "gear motor passes through the bolt and installs on a beam slab of saw roof beam, overspeed device tensioner passes through the bolt and installs on another beam slab of saw roof beam, the saw roof beam passes through the bolt and is connected with the post cover on two vertical guide arms, need three connection structure to connect" compare, in this scheme, only need pass through reducer housing snap-on with gear motor on a vertical beam, pass through overspeed device tensioner housing snap-on another vertical beam, above these two connection structure can, so, connection structure has not only been simplified, and can effectually improve saw cutting stationarity.
Preferably, the driving saw wheel is located on the front side of the reducer casing, the driven saw wheel is located on the front side of the tensioning device casing, the upper portion of the driving saw wheel is inclined towards the front side of the band sawing machine, and the upper portion of the driven saw wheel is inclined towards the front side of the band sawing machine, so that sawdust generated in the working process of the band sawing machine is prevented from being accumulated between the reducer casing and the saw belt and between the tensioning device casing and the saw belt.
Compared with the prior art that the upper parts of the driving saw wheel and the driven saw wheel are inclined towards the rear side of the band sawing machine, and a part of saw dust is accumulated between the saw band and the beam plate in the sawing process, so that the saw dust is easy to adhere to sawteeth of the saw band, the sawing stability of the saw band and the service life of the saw band are seriously influenced, and the flatness of the section of a workpiece after sawing is seriously influenced, in the scheme, the driving saw wheel is positioned on the front side of the reducer shell, the driven saw wheel is positioned on the front side of the tensioner shell, the upper parts of the driving saw wheel and the driven saw wheel are inclined towards the front side of the band sawing machine, correspondingly, an upper saw band section positioned above the driving saw wheel and the driven saw wheel (the saw band comprises an upper saw band section positioned above the driving saw wheel and the driven saw wheel and a lower saw band section positioned below the driving saw wheel and the driven saw wheel), and the front side of the upper saw band section is inclined downwards in the width direction of the saw band (the front side of the upper saw band section is the upper saw band section close to the side of the front side of the band, so, the saw dust will directly drop, can not pile up at last saw band section and between reduction gear casing and the overspeed device tensioner casing, in order to improve the life of saw band, it is more stable smooth and easy to make it operate, and improve and saw cut the sectional plane degree of back work piece, thereby effectively solve the band sawing machine among the prior art in saw cutting the course of working, partly saw dust can pile up at last saw band section and between the beam slab, make easy adhesion saw dust on the sawtooth of saw band, and influence saw cut the life of stationarity and saw band of saw band, and influence the problem of saw cutting the sectional plane degree of back work piece.
Preferably, the saw belt comprises an upper saw belt section located above the driving saw wheel and the driven saw wheel and a lower saw belt section located below the driving saw wheel and the driven saw wheel, the distance between the lower saw belt section and the vertical guide rail is smaller than the distance between the upper saw belt section and the vertical guide rail, and the lower saw belt section is close to the vertical guide rail.
Compared with the prior art that the upper parts of the driving saw wheel and the driven saw wheel incline towards the back side of the band sawing machine, the distance between the lower saw band section and the vertical guide rail is larger than the distance between the upper saw band section and the vertical guide rail, so that the lower saw band section is far away from the vertical guide rail (the lower saw band section is used as a part of an actual sawing workpiece), the distance between the lower saw band section and the vertical guide rail is smaller than the distance between the upper saw band section and the vertical guide rail by changing the inclination angle of the driving saw wheel and the driven saw wheel, and the lower saw band section is close to the vertical guide rail.
Preferably, the upper saw band section is located on the front side of the gantry saw beam frame, and the upper saw band section is located on the rear side of the gantry saw beam frame or below the gantry saw beam frame.
Preferably, the tensioning device comprises a slide rail arranged on the tensioning device shell, a sliding seat sliding along the slide rail and a pushing executing mechanism for driving the sliding seat to slide, and the driven saw wheel is rotatably arranged on the sliding seat.
Preferably, the lifting device comprises a screw rod lifting actuating mechanism, the screw rod lifting actuating mechanism comprises a screw rod nut mechanism and a lifting motor, the screw rod nut mechanism comprises a vertical screw rod and a lifting nut, the vertical screw rod is rotatably arranged on the saw frame through a bearing, the lifting nut is matched with the vertical screw rod, the lifting motor is arranged on the saw frame and is used for driving the vertical screw rod to rotate, and the lifting nut is connected with the gantry type saw beam frame. Therefore, the gantry saw beam frame can be driven to accurately lift along the vertical guide rail through the lead screw lifting actuating mechanism.
Preferably, the lifting device further comprises a lifting balancing device, the lifting balancing device comprises a balancing oil cylinder arranged on the saw frame, a chain wheel rotatably arranged on the upper portion of the saw frame and a chain matched with the chain wheel, the height of the chain wheel is higher than that of the gantry saw beam frame, one end of the chain is connected with the gantry saw beam frame, and the other end of the chain is connected with a piston rod of the balancing oil cylinder. According to the scheme, the lifting balance device is matched with the lead screw lifting actuating mechanism to drive the gantry type saw beam frame to lift along the vertical guide rail, so that the lifting stability of the gantry type saw beam can be effectively improved, and particularly, when the lead screw lifting actuating mechanism drives the gantry type saw beam frame to descend along the vertical guide rail, the balance oil cylinder extends out and pulls the gantry type saw beam frame downwards through the chain; when the lead screw lifting actuating mechanism drives the gantry saw beam frame to ascend along the vertical guide rail, the balance oil cylinder contracts and pulls the gantry saw beam frame to ascend through the chain so as to ensure the ascending and descending stability of the gantry saw beam frame.
Preferably, the number of the lifting balance devices is two. Therefore, the lifting stability of the gantry type saw beam can be further improved.
Preferably, the gear housing is fastened to the vertical beam by means of bolts and the tensioner housing is fastened to the vertical beam by means of bolts. Therefore, the speed reducer and the tensioning device can be conveniently mounted and dismounted.
Preferably, the saw frame comprises a bottom frame and a portal frame fixed on the bottom frame, and the vertical guide rail is arranged on the portal frame.
Preferably, the connecting cross beam and the two vertical beams are connected into a whole through welding.
The invention has the beneficial effects that:
the strength and the stability of the saw beam structure can be effectively improved, and therefore the sawing stability and the sawing efficiency of the band sawing machine are improved.
Secondly, can effectively solve the band sawing machine among the prior art and saw cut the course of working, some saw dust can be piled up between last saw band section and beam slab for easy adhesion saw dust on the sawtooth of saw band, and influence saw cutting stationarity and the life of saw band, and influence the problem of saw cutting back work piece sectional plane degree.
Drawings
FIG. 1 is a schematic view of a prior art band saw machine.
Fig. 2 is a partial structural schematic view of a sawing device of a band sawing machine in the prior art.
Fig. 3 is a schematic structural view of a band sawing machine to which the beamless plate type sawing device of the present invention is applied.
FIG. 4 is a schematic view of a partial structure of the band saw machine of the present invention.
In the figure:
the device comprises a saw frame 1, a portal frame 1.0, a vertical guide rod 1.1, a column sleeve 1.2 and a vertical guide rail 1.3;
the gantry type saw beam frame 2b, the vertical beam 2.1, the connecting beam 2.2, the speed reducer mounting plate 2.3 and the tensioning device mounting plate 2.4;
the sawing machine comprises a driving saw wheel 3.1, a driven saw wheel 3.2, a saw belt 3.3, an upper saw belt section 3.31, a lower saw belt section 3.32, a tensioning device 3.4, a tensioning device shell 3.41, a speed reducing motor 3.5 and a speed reducer shell 3.51;
a screw rod lifting actuating mechanism 4, a screw rod nut mechanism 4.1 and a lifting motor 4.2;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present scheme, and are not construed as limiting the scheme of the present invention.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited thereby. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: as shown in fig. 3 and 4, a band sawing machine includes a saw frame 1, a gantry saw beam frame 2b, a lifting device and a saw band cutting mechanism. The saw frame is provided with vertical guide rails 1.3, in the embodiment, the saw frame comprises a bottom frame and a portal frame 1.0 fixed on the bottom frame, the vertical guide rails are arranged on the portal frame, and the number of the vertical guide rails is two. The gantry saw beam frame slides up and down along the vertical guide rail, and in the embodiment, a sliding block matched with the vertical guide rail is arranged on the gantry saw beam frame. The lifting device is used for driving the gantry saw beam frame to move up and down along the vertical guide rail. The gantry saw beam frame 2b comprises a left vertical beam 2.1, a right vertical beam 2.1 and a connecting cross beam 2.2 for connecting the two vertical beams, in the embodiment, the connecting cross beam and the two vertical beams are connected into a whole through welding, and the connecting cross beam and the two vertical beams can be integrally processed and formed. The saw band cutting mechanism comprises a driving saw wheel 3.1, a driven saw wheel 3.2, a saw band 3.3, a speed reducing motor 3.5 and a tensioning device 3.4, wherein the saw band is encircled on the driving saw wheel and the driven saw wheel, the speed reducing motor is used for driving the driving saw wheel to rotate, and the tensioning device is used for tensioning the saw band on the driving saw wheel and the driven saw wheel. The gear motor comprises a reducer housing 3.51, which is fixed on a vertical beam. The driving saw wheel is rotatably arranged on the reducer shell, and an output shaft of the speed reducing motor is connected with a rotating shaft of the driving saw wheel. The tensioning device comprises a tensioning device housing 3.41, which is fixed to the other vertical beam. The driven saw wheel is arranged on the tensioning device.
The band sawing machine of the embodiment has the advantages that on one hand, the gantry type saw beam frame with higher rigidity and strength is integrally connected, so that the strength and the stability of the structure of the saw beam are effectively improved, the bending and displacement mutation of the saw beam in long-term use are reduced, and the stability of the saw frame in the feeding motion is increased, so that the sawing stability of the band sawing machine is improved, meanwhile, the gantry type saw beam frame is good in structural strength and stability, so that the sawing linear speed can be effectively improved, the sawing efficiency is improved, particularly the sawing efficiency of thick materials and hard metals can be improved, the production efficiency is greatly improved, and the economy of sawing processing is improved; on the other hand, because the gear motor is directly fixed on one vertical beam through the reducer shell, and the tension device is directly fixed on the other vertical beam through the tension device shell, the gantry saw beam frame of the scheme can save beam plates on the saw beam in the prior art, thereby reducing the manufacturing of the saw beam and reducing the manufacturing cost; simultaneously, with among the band sawing machine of prior art "gear motor passes through the bolt and installs on a beam slab of saw roof beam, overspeed device tensioner passes through the bolt and installs on another beam slab of saw roof beam, the saw roof beam passes through the bolt and is connected with the post cover on two vertical guide arms, need three connection structure to connect" compare, in this scheme, only need pass through reducer housing snap-on with gear motor on a vertical beam, pass through overspeed device tensioner housing snap-on another vertical beam, above these two connection structure can, so, connection structure has not only been simplified, and can effectually improve saw cutting stationarity.
Further, as shown in fig. 3, the lifting device includes a screw lifting actuator 4. The screw rod lifting actuating mechanism comprises a screw rod nut mechanism 4.1 and a lifting motor 4.2. The screw rod nut mechanism comprises a vertical screw rod and a lifting nut, wherein the vertical screw rod is rotatably arranged on the saw frame through a bearing, and the lifting nut is matched with the vertical screw rod. The lifting motor is arranged on the saw frame and used for driving the vertical screw rod to rotate. The lifting nut is connected with the gantry saw beam frame. Therefore, the gantry saw beam frame can be driven to accurately lift along the vertical guide rail through the lead screw lifting actuating mechanism.
Further, as shown in fig. 3, the lifting device further includes two lifting balance devices 5. The lifting balancing device 5 comprises a balancing oil cylinder 5.1 arranged on the saw frame, a chain wheel 5.2 rotatably arranged on the upper part of the saw frame and a chain 5.3 matched with the chain wheel. The height of the chain wheel is higher than that of the gantry saw beam frame. One end of the chain is connected with the gantry saw beam frame, and the other end of the chain is connected with a piston rod of the balance oil cylinder. The axis of the balance oil cylinder is vertically distributed, and a piston rod of the balance oil cylinder is arranged upwards.
According to the scheme, the lifting balance device is matched with the lead screw lifting actuating mechanism to drive the gantry type saw beam frame to lift along the vertical guide rail, so that the lifting stability of the gantry type saw beam can be effectively improved, and particularly, when the lead screw lifting actuating mechanism drives the gantry type saw beam frame to descend along the vertical guide rail, the balance oil cylinder extends out and pulls the gantry type saw beam frame downwards through the chain; when the lead screw lifting actuating mechanism drives the gantry saw beam frame to ascend along the vertical guide rail, the balance oil cylinder contracts and pulls the gantry saw beam frame to ascend through the chain so as to ensure the ascending and descending stability of the gantry saw beam frame.
Further, as shown in fig. 3, the tensioning device includes a slide rail disposed on the housing of the tensioning device, a sliding seat sliding along the slide rail, and a pushing actuator for driving the sliding seat to slide. The sliding direction of the sliding seat is parallel to the length direction of the saw belt. The driven saw wheel is rotatably arranged on the sliding seat. The pushing executing mechanism is an air cylinder or an oil cylinder or an electric cylinder or a manual puller bolt arranged on the shell of the tensioning device. The pushing execution mechanism drives the sliding seat to move along the sliding rail so as to increase the distance between the driving saw wheel and the driven saw wheel or reduce the distance between the driving saw wheel and the driven saw wheel, and therefore the saw belt is tensioned on the driving saw wheel and the driven saw wheel or loosened.
Further, as shown in fig. 3 and 4, one of the two vertical beams is provided with a speed reducer mounting plate 2.3, and the other vertical beam is provided with a tension device mounting plate 2.4. The speed reducer shell is fixed on the speed reducer mounting plate, and the tensioning device shell is fixed on the tensioning device mounting plate. Thus, the installation of the speed reducer and the tensioning device is convenient.
The speed reducer mounting plate is connected with the vertical beam through welding, and the tensioning device mounting plate is connected with the vertical beam through welding. The speed reducer shell is fixed on the speed reducer mounting plate through a bolt, and the tensioning device shell is fixed on the tensioning device mounting plate through a bolt. Therefore, the speed reducer and the tensioning device can be conveniently mounted and dismounted.
Further, as shown in fig. 3 and 4, the saw belt includes an upper saw belt segment 3.31 located above the driving saw wheel and the driven saw wheel and a lower saw belt segment 3.32 located below the driving saw wheel and the driven saw wheel. In this embodiment, the outer diameters of the driving saw wheel and the driven saw wheel are the same, and the driving saw wheel and the driven saw wheel are located at the same height. The driving saw wheel 3.1 is located on the front side of the reducer housing, and the driven saw wheel 3.2 is located on the front side of the tensioner housing. The upper part of the driving saw wheel 3.1 inclines towards the front side of the band sawing machine, and the upper part of the driven saw wheel 3.2 inclines towards the front side of the band sawing machine, so that sawdust generated in the working process of the band sawing machine is prevented from being accumulated between the speed reducer shell and a saw belt and between the tension device shell and the saw belt. In this embodiment, the front side of the band sawing machine refers to the side facing the operator, the driving saw wheel is located at the front side of the reducer housing, the driving saw wheel is located at the side of the reducer housing facing the front side of the band sawing machine, the driven saw wheel is located at the front side of the tensioner housing, and the driven saw wheel is located at the side of the tensioner housing facing the front side of the band sawing machine.
Compared with the prior art that the upper parts of the driving saw wheel and the driven saw wheel incline towards the rear side of the band sawing machine, and in the sawing process, a part of sawdust can be accumulated between the saw band and the beam plate to cause the sawdust to be easily adhered to sawteeth of the saw band and seriously affect the sawing stability of the saw band, the service life of the saw band and the flatness of the section of a workpiece after sawing, in the scheme, the driving saw wheel is positioned on the front side of the reducer shell, the driven saw wheel is positioned on the front side of the tensioning device shell, the upper parts of the driving saw wheel and the driven saw wheel incline towards the front side of the band sawing machine, correspondingly, an upper saw band section of the saw band inclines downwards at the front side of the upper saw band section in the width direction of the saw band (the front side of the upper saw band section refers to the side of the upper saw band section close to the front side of the band sawing machine), and the sawdust can directly fall off and can not be accumulated between the upper saw band section and the reducer shell and the tensioning device shell, with the life who improves the saw band, it is more stable smooth and easy to make it move to improve and saw cut the sectional plane degree of back work piece, thereby effectively solve the band sawing machine among the prior art in saw cutting the course of working, a part saw dust can be piled up between last saw band section and beam slab, make easy adhesion saw dust on the sawtooth of saw band, and influence the saw cut stationarity of saw band and the life of saw band, and influence the problem of saw cutting the sectional plane degree of back work piece.
Further, as shown in fig. 3 and 4, the distance between the lower saw band segment 3.32 and the vertical guide rail is smaller than the distance between the upper saw band segment 3.31 and the vertical guide rail, specifically, the distance between the lower saw band segment 3.32 and the vertical guide rail is smaller than the distance between the upper saw band segment 3.31 and the vertical guide rail in the horizontal direction. The lower saw band segment is adjacent to the vertical guide rail. In this embodiment, the upper saw band section is located at the front side of the gantry saw beam frame, and the upper saw band section is located at the rear side of the gantry saw beam frame or below the gantry saw beam frame. Compared with the prior art that the upper parts of the driving saw wheel and the driven saw wheel incline towards the back side of the band sawing machine, the distance between the lower saw band section and the vertical guide rail is larger than the distance between the upper saw band section and the vertical guide rail, so that the lower saw band section is far away from the vertical guide rail (the lower saw band section is used as a part of an actual sawing workpiece), the distance between the lower saw band section and the vertical guide rail is smaller than the distance between the upper saw band section and the vertical guide rail by changing the inclination angle of the driving saw wheel and the driven saw wheel, and the lower saw band section is close to the vertical guide rail.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (10)
1. A band sawing machine is characterized by comprising:
the saw frame is provided with a vertical guide rail;
the gantry type saw beam frame comprises a left vertical beam, a right vertical beam and a connecting cross beam for connecting the two vertical beams, and the gantry type saw beam frame slides up and down along a vertical guide rail;
the lifting device is used for driving the gantry saw beam frame to move up and down along the vertical guide rail;
the saw band cutting mechanism is arranged on the gantry saw beam frame and comprises a driving saw wheel, a driven saw wheel, a saw band surrounding the driving saw wheel and the driven saw wheel, a speed reducing motor for driving the driving saw wheel to rotate and a tensioning device for tensioning the saw band on the driving saw wheel and the driven saw wheel,
the speed reducing motor comprises a speed reducer shell, the speed reducer shell is fixed on a vertical beam, and the driving saw wheel is rotatably arranged on the speed reducer shell; the tensioning device comprises a tensioning device shell, and the tensioning device shell is fixed on the other vertical beam; the driven saw wheel is arranged on the tensioning device.
2. The band sawing machine according to claim 1, wherein the driving saw wheel is located at a front side of the reducer housing, the driven saw wheel is located at a front side of the tensioner housing, an upper portion of the driving saw wheel is inclined toward the front side of the band sawing machine, and an upper portion of the driven saw wheel is inclined toward the front side of the band sawing machine, so that sawdust generated during operation of the band sawing machine is prevented from being accumulated between the reducer housing and the saw band and between the tensioner housing and the saw band.
3. A band sawing machine according to claim 2, wherein the saw band comprises an upper saw band segment located above the driving saw wheel and the driven saw wheel and a lower saw band segment located below the driving saw wheel and the driven saw wheel, the distance between the lower saw band segment and the vertical guide rail is smaller than the distance between the upper saw band segment and the vertical guide rail, and the lower saw band segment is close to the vertical guide rail.
4. A band saw machine according to claim 3, wherein said upper saw band section is located on the front side of the gantry saw beam, and said upper saw band section is located on the rear side of the gantry saw beam or below the gantry saw beam.
5. A band saw machine according to claim 1, 2, 3 or 4, wherein said tension device comprises a slide rail mounted on the housing of the tension device, a slide base sliding along the slide rail, and a pushing actuator for driving the slide base to slide, and said driven saw wheel is rotatably mounted on the slide base.
6. A band sawing machine according to claim 1 or 2 or 3 or 4, characterized in that the lifting device comprises a lead screw lifting actuator, the lead screw lifting actuator comprises a lead screw nut mechanism and a lifting motor, the lead screw nut mechanism comprises a vertical lead screw rotatably arranged on the saw frame through a bearing and a lifting nut matched with the vertical lead screw, the lifting motor is arranged on the saw frame and used for driving the vertical lead screw to rotate, and the lifting nut is connected with the gantry type saw beam frame.
7. A band sawing machine according to claim 6, characterized in that the lifting device further comprises a lifting balancing device, the lifting balancing device comprises a balancing cylinder arranged on the saw frame, a chain wheel rotatably arranged on the upper portion of the saw frame and a chain matched with the chain wheel, the chain wheel is higher than the gantry saw beam frame, one end of the chain is connected with the gantry saw beam frame, and the other end of the chain is connected with a piston rod of the balancing cylinder.
8. A band saw machine according to claim 7, wherein said lifting/lowering balance means are two.
9. A band saw machine according to claim 1, 2, 3 or 4, wherein said reducer housing is bolted to the vertical beam and said tensioner housing is bolted to the vertical beam.
10. A band sawing machine according to claim 1, 2, 3 or 4, characterized in that the saw frame comprises a base frame and a portal frame fixed on the base frame, and the vertical guide rail is arranged on the portal frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010059360.4A CN111408794A (en) | 2020-01-19 | 2020-01-19 | Band sawing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010059360.4A CN111408794A (en) | 2020-01-19 | 2020-01-19 | Band sawing machine |
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| CN111408794A true CN111408794A (en) | 2020-07-14 |
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| CN202010059360.4A Pending CN111408794A (en) | 2020-01-19 | 2020-01-19 | Band sawing machine |
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| CN112296443A (en) * | 2020-10-28 | 2021-02-02 | 浙江锯力煌锯床股份有限公司 | High-speed intelligent band sawing machine and sawing method |
| CN113909569A (en) * | 2021-11-04 | 2022-01-11 | 广东红荔枝新材料科技有限公司 | Saw band tensioning mechanism of high-speed band sawing machine and adjusting method thereof |
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| CN113909569A (en) * | 2021-11-04 | 2022-01-11 | 广东红荔枝新材料科技有限公司 | Saw band tensioning mechanism of high-speed band sawing machine and adjusting method thereof |
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