CN209681319U - A kind of double cutting head sawing machines - Google Patents

Abstract

The utility model discloses a kind of double cutting head sawing machines, including pedestal (1), controller (4) and the saw material device being successively set on pedestal (1) along machine direction, gap bridge transmitting device and transmitting device is transported, the saw material device is mainly made of limit conveyer belt and electric saw (14) etc.；The gap bridge transmitting device is mainly made of gap bridge belt feeder (21) and damping device etc.；The transhipment transmitting device is mainly made of inductor (33) and roller group (32) etc., and the roller group (32), inductor (33) are connect with controller (4).The saw material device of the utility model can be according to the spacing of two limit conveyer belts of size adjusting of plate, whether and it is qualified to detect board dimension, damping device and clump weight are provided on gap bridge transmitting device, energy snubber contact pressure and the balance for keeping transmission state, guarantee stability of the plate when transmitting on gap bridge belt feeder, of simple structure and strong practicability.

Description

A kind of double cutting head sawing machines

Technical field

The utility model relates to sheet metal processing, in particular to a kind of double cutting head sawing machines.

Background technique

During sheet fabrication, because the panel length that need to be processed is not quite identical, panel length and double end frequent occurrence The saw charging unmatched situation of width, causes dual-end saw can not be normally to plate cutting；Meanwhile when transmitting heavier plate, The excessive gap bridge belt feeder that will cause of the gravity of plate occurs significantly to overturn, and causes plate that can not steadily pass on gap bridge belt feeder It send, is easy to interfere with other devices, needs manually to be adjusted.

Utility model content

It is suitable for processing plurality of specifications plate the technical problem to be solved by the present invention is to provide a kind of, and improves processing Double cutting head sawing machines of efficiency.

The technical solution of the utility model is as follows:

A kind of double cutting head sawing machines are successively set on the dress of the saw material on pedestal including pedestal, controller and along machine direction Set, gap bridge transmitting device and transhipment transmitting device, the saw material device include first limit conveyer belt arranged in parallel and Second limit conveyer belt, the first limit conveyer belt are connected with the first fixed frame being installed on pedestal, and described first is fixed Frame is equipped with fixed plate, is installed with limit plate in the fixed plate, is rotatably connected to screw rod on first fixed frame；Described Two limit conveyer belts are connected with the second fixed frame, which is equipped with the second link block, the front of motor of the screw rod Equipped with one section of screw thread, the end of thread of the screw rod, which is spirally connected, is fed through the second link block, which is equipped with supporting plate, described Supporting plate is equipped with graduated scale；One end of corresponding second fixed frame is equipped with one section of graduation mark on the pedestal, goes back on the pedestal parallel If there are two guide rail, second fixed frame is slidably connected on guide rail；An electric saw is respectively provided in the side of two fixed frames With a pinch roller mounting plate, two electric saws and pinch roller mounting plate are symmetrical arranged, and each electric saw is respectively connected with fixed Electric saw motor on corresponding end fixed frame, each pinch roller mounting plate is fixedly connected with the fixed frame of corresponding end, every One group of pinch roller is equipped on a pinch roller mounting plate, pinch roller described in two groups is located at the surface of corresponding end limit conveyer belt；Institute Stating gap bridge transmitting device includes two gap bridge belt feeders disposed in parallel, and one end of each gap bridge belt feeder is filled equipped with damping It sets, the other end is equipped with clump weight, and the lower section of the clump weight is equipped with the gag lever post being fixed on the base；The transhipment transmitting device Including mounting bracket and the inductor being installed in mounting bracket, baffle, the mounting bracket are equipped in the mounting bracket It is equipped with roller group towards the side of gap bridge belt feeder, the direction of transfer of the direction of transfer and gap bridge belt feeder of the roller group is mutual Vertically, the first limit conveyer belt, the second limit conveyer belt, gap bridge belt feeder, roller group and inductor be and controller Connection.

Using the above structure, before processing, according to the size of plate, when needing to adjust the position of the second fixed frame, rotation Screw rod moves the second link block threadingly on screw rod, and the second fixed frame is driven to be moved to corresponding position along guide rail, and by The mark of graduation mark judges.

When controller starts, the first limit conveyer belt and the second limit conveyer belt rotate simultaneously, and gap bridge belt feeder is also together It starts turning；When the plate of processing is flat sheet, plate is placed horizontally on two limit conveyer belts, the axis side of plate It is mutually perpendicular to direction of transfer, plate horizontal direction limit plate direction is pushed, abuts one end of plate axial direction with limit plate, At this point, checking plate corresponding scale on the scale, according to processing request, whether size is qualified before checking sheet fabrication, if Plate is partially long or partially short, and by manually in time taking out plate, classification is put so as to processing of doing over again or retrofit；When plate is passed in limit When sending the lower end for taking and being sent to pinch roller, the wheel face of pinch roller pushes down plate, meanwhile, two electric saws are respectively by two ends of plate Cutting is neat, guarantees in cutting process, and plate will not shift on limit conveyer belt or play, it is ensured that machining accuracy.

Plate after cutting, which is detached from pinch roller, to be continued to transmit, when the lower end surface of plate is contacted with gap bridge belt feeder, due to mistake The transmission speed of bridge belt feeder is higher than the transmission speed of limit conveyer belt, the lower end surface of plate placement state and gap bridge belt feeder it Between frictional force, drive plate along direction of transfer forward is detached from limits conveyer belt, move quickly into plate on gap bridge belt feeder, Plate is quickly sent to the top of roller group by gap bridge belt feeder, and under the effect of gravity, plate is pushed down gap bridge belt feeder and is equipped with One end of clump weight downwardly turns over mobile a distance, and plane is lower than roller group wheel where making gap bridge belt feeder lower end upper surface Plane where the upper end of face, under the blocking of the baffle plate, plate rests on the wheel face of roller group.

At this point, issuing signal to controller, sending instruction is opened after controller receives the signal after inductor detects plate Dynamic roller group, roller group are sent to mud-coated equipment along the direction perpendicular with the direction of transfer of gap bridge belt feeder, by plate；Most Afterwards, when inductor, which detects, does not have plate on the wheel face of roller group, signal occurs to controller, controller, which issues instruction, to be made to roll Wheel group stops operating, and waits the feeding of gap bridge belt feeder, repeats the above steps, and completes the trimming processing of plate.

In process, when the eminence termination of gap bridge belt feeder contacts plate, the corresponding end of gap bridge belt feeder is generated Pressure, damping device have buffer function to pressure, and keep the direction of transfer of gap bridge belt feeder, guarantee plate in gap bridge belt feeder Stability when upper transmission.

For convenience of the position for adjusting the second fixed frame, preferably, the position of the bottom corresponding rails of second fixed frame Guide groove is installed, the guide groove is socketed on guide rail；It is installed with the first link block on first fixed frame, described Bearing is embedded on one link block, the mesoporous of the bearing and the corresponding end tight fit of screw rod are socketed；The screw rod sets threaded One end is equipped with handwheel, and rotation hand wheel drives screw rod rotation, since the second link block is spirally connected with screw rod, the second fixed frame can be made to lead It is moved on rail, to adjust the spacing between the first fixed frame and the second fixed frame.

To guarantee no longer to move after the second fixed frame slides into predetermined position, preferably, on each guide rail If there are two limited block, two limited blocks are located at the two sides of the second fixed frame in the direction of movement.

For limited block is fixed, preferably, tapped through hole is equipped on the limited block, in the tapped through hole It is spirally connected and is equipped with fixing bolt, the traversing through end of the fixing bolt abuts fixation with the corresponding position on guide rail.

To meet the processing request that section is L shape plate, preferably, the first limit conveyer belt and the second limit On conveyer belt, it is all uniformly provided at least one boss, the boss of corresponding position corresponds on two limit conveyer belts.

To make damping device that cushioning effect be better achieved, preferably, the damping device includes being connected to gap bridge skin The first connecting plate with machine one end, the lower end of first connecting plate are linked with spring, and the other end of the spring is fixedly connected There is the second connecting plate；The gap bridge belt feeder is set there are two driven wheel and a driving wheel, and the driving wheel is driven positioned at two Between wheel, which is connected with the gap bridge motor being installed on pedestal, and the gap bridge motor is equipped with fagging, the fagging Upper surface and the second connecting plate upper surface are articulated and connected.

For convenience of the connection and disengaging of spring and the first connecting plate, preferably, the upper end of the spring is equipped with hook, institute The lower end for stating the first connecting plate is equipped with link, and the hook is mounted with link.

It is connected for convenience of gap bridge belt feeder with limit conveyer belt and roller group, preferably, each gap bridge skin Band machine is to be obliquely installed, and the eminence end of the gap bridge belt feeder is towards the limit conveyer belt of corresponding end, and lower end is towards roller group； Plane where the gap bridge belt feeder eminence end upper surface is higher than plane where corresponding end limit conveyer belt upper surface, and is lower than Plane where corresponding end boss upper surface, plane is higher than roller group wheel face upper end institute where the gap bridge belt feeder lower end upper surface In plane.

The utility model has the advantages that the saw material device of the utility model can be according between two limit conveyer belts of size adjusting of plate Away from, and whether qualified, damping device and clump weight are provided on gap bridge transmitting device if can detect board dimension, it can snubber contact pressure Power and the balance for keeping transmission state guarantee stability of the plate when transmitting on gap bridge belt feeder, and structure is simple, practicability By force.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the enlarged drawing in Fig. 1 at A.

Fig. 3 is the enlarged drawing in Fig. 1 at B.

Fig. 4 is the structural schematic diagram of the second fixed frame, limited block and guide rail.

Fig. 5 is the structural schematic diagram of gap bridge transmitting device.

Fig. 6 is structural schematic diagram when gap bridge transmitting device does not mount spring.

Fig. 7 is the transmission status diagram of flat sheet.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the utility model is added by pedestal 1, controller 4 and edge Work direction is successively set on saw material device, gap bridge transmitting device and transhipment transmitting device composition on pedestal 1.

The saw material device includes that the first limit conveyer belt 11 and second arranged in parallel limits conveyer belt 12, described On first limit conveyer belt 11 and the second limit conveyer belt 12, it is all uniformly provided at least one boss 20, two limit conveyer belts The boss 20 of upper corresponding position corresponds；It is solid that the first limit conveyer belt 11 is connected with first be installed on pedestal 1 Determine frame 17, first fixed frame 17 is equipped with fixed plate, limit plate 13 is installed in the fixed plate, first fixed frame It is installed with the first link block 52 on 17, bearing 53, the mesoporous close-fitting of the bearing 53 are embedded on first link block 52 Trap is connected to screw rod 5；The second limit conveyer belt 12 is connected with the second fixed frame 18, and second fixed frame 18 is equipped with the The front of motor of two link blocks 51, the screw rod 5 is equipped with one section of screw thread, and the end of thread of the screw rod 5, which is spirally connected, is fed through the second connection Block 51, second fixed frame 18 are equipped with supporting plate, and graduated scale 19 is equipped on the supporting plate；Corresponding second is solid on the pedestal 1 The one end for determining frame 18 is equipped with one section of graduation mark 8, is also set in parallel on the pedestal 1 there are two guide rail 6, second fixed frame 18 slides It is connected on guide rail 6；The position of the bottom corresponding rails 6 of second fixed frame 18 is equipped with guide groove, and the guide groove is socketed in On guide rail 6；The screw rod 5 sets threaded one end equipped with handwheel 9, and rotation hand wheel 9 drives screw rod 5 to rotate, due to the second link block 51 are spirally connected with screw rod 5, and the second fixed frame 18 can be made to move on guide rail 6, to adjust the first fixed frame 17 and the second fixed frame Spacing between 18；It is all provided on each guide rail 6 there are two limited block 7, it is solid that two limited blocks 7 are located at second Determine the two sides of frame 18 in the direction of movement；It is equipped with tapped through hole on the limited block 7, is spirally connected and is equipped in the tapped through hole The traversing through end of fixing bolt, the fixing bolt abuts fixation with the corresponding position on guide rail 6.

An electric saw 14 and a pinch roller mounting plate 15, two 14 Hes of electric saw are respectively provided in the side of two fixed frames Pinch roller mounting plate 15 is symmetrical arranged, and each electric saw 14 is respectively connected with the Electric saw motor being installed on corresponding end fixed frame, The Electric saw motor is connected with control switch；Each pinch roller mounting plate 15 is fixedly connected with the fixed frame of corresponding end, In One group of pinch roller 16 is equipped on each pinch roller mounting plate 15, pinch roller 16 described in two groups is being located at corresponding end limit conveyer belt just Top.

The gap bridge transmitting device includes two gap bridge belt feeders 21 disposed in parallel, each gap bridge belt feeder 21 One end is equipped with damping device, and the damping device includes the first connecting plate 25 for being connected to 21 one end of gap bridge belt feeder, and described the The lower end of one connecting plate 25 is equipped with link, and the link is connected with spring 26, and the upper end of the spring 26 is equipped with hook, the extension Hook and link mount；The other end of the spring 26 is fixedly connected with the second connecting plate 27；There are two the gap bridge belt feeder 21 is set Driven wheel and a driving wheel, the driving wheel are located between two driven wheels, which, which is connected with, is installed on pedestal 1 Gap bridge motor 22, the gap bridge motor 22 be high-speed motor, the gap bridge motor 22 be equipped with fagging, the upper surface of the fagging with The articulated connection of second connecting plate, 27 upper surface；The other end of the gap bridge belt feeder 21 is equipped with clump weight 23, the clump weight 23 Lower section is equipped with the gag lever post 24 being installed on pedestal 1, and the upper surface of the gag lever post 24 is equipped with cushion.

The transhipment transmitting device includes mounting bracket 31 and the inductor being installed in mounting bracket 31 33, described Mounting bracket 31 is equipped with baffle 34, which is equipped with roller group 32, the rolling towards the side of gap bridge belt feeder 21 There are gaps between wheel group 32 and mounting bracket 31；The roller group 32 includes a driving wheel and at least one pulley, the master Driving wheel is connected with the driving motor being installed in mounting bracket 31；The direction of transfer of the roller group 32 and gap bridge belt feeder 21 Direction of transfer is mutually perpendicular to.

Each gap bridge belt feeder 21 is to be obliquely installed, the limit of the eminence end of the gap bridge belt feeder 21 towards corresponding end Position conveyer belt, lower end is towards roller group 32；Plane where the 21 eminence end upper surface of gap bridge belt feeder is higher than corresponding end and limits Plane where the conveyer belt upper surface of position, and lower than plane where 20 upper surface of corresponding end boss, the 21 lower end of gap bridge belt feeder Plane is higher than plane where 32 wheel face upper end of roller group where upper surface.

It is described first limit conveyer belt 11, second limit conveyer belt 12, gap bridge motor 22, roller group 32 driving motor, Inductor 33 is connect with controller 4.

The application method of the present embodiment is as follows:

As shown in Fig. 1 to Fig. 7, before processing, according to the size of plate, when needing to adjust the position of the second fixed frame 18, The bolt on limited block 7 is unclamped, rotation hand wheel 9 rotates screw rod 5, and the second link block 51 threadingly moves on screw rod 5, drives Second fixed frame 18 is moved to corresponding position along guide rail 6, and is judged by the mark of graduation mark 8, then by corresponding position Limited block 7 and the second fixed frame 18 abut limit, and tighten the bolt on limited block 7, and bolt is made to abut fixation with guide rail 6, from And fix the position of the second fixed frame 18.

When controller 4 starts, the first limit conveyer belt 11 and the second limit conveyer belt 12 rotate simultaneously, 22 band of gap bridge motor Dynamic gap bridge belt feeder 21 also starts turning together, and Electric saw motor (not indicating) is not connect with controller 4, when starting processing, It opens Electric saw motor and starts electric saw 14, to guarantee the safety of the work of electric saw 14.

When the cross sectional shape of plate is L shape, by one end of plate vertical section towards direction of transfer, as front end face, The other end is towards corresponding boss 20, as rear end face, then plate is put into straight down on each limit conveyer belt and corresponds to position Between two boss 20 set, the rear end face of plate vertical section is bonded with 20 corresponding end end face of boss, meanwhile, plate horizontal segment Lower end surface is bonded with 20 upper surface of boss, and plate is made to keep horizontal positioned, and the axis direction of plate and direction of transfer keep hanging down Directly, 13 direction of plate horizontal direction limit plate is pushed, abuts one end of plate axial direction with limit plate 13, at this point, checking plate The corresponding scale on graduated scale 19, according to processing request, whether size is qualified before checking sheet fabrication, if plate is partially long or inclined Short, by manually in time taking out plate, classification is put so as to processing of doing over again or retrofit；When plate is sent on limit conveyer belt When the lower end of pinch roller 16, the wheel face of pinch roller 16 pushes down plate, meanwhile, two electric saws 14 are whole by two ends cutting of plate respectively Together, guarantee in cutting process, plate will not shift on limit conveyer belt or play, it is ensured that machining accuracy.

Plate after cutting, which is detached from pinch roller 16, to be continued to transmit, when the lower end surface of plate is contacted with gap bridge belt feeder 21, by High-speed motor is used in gap bridge motor 22, the transmission speed of gap bridge belt feeder 21 is higher than the transmission speed of limit conveyer belt, due to Gap bridge belt feeder 21 be it is angularly disposed, plane where the upper surface of eminence end is higher than flat where corresponding end limit conveyer belt upper surface Face, and lower than plane where 20 upper surface of corresponding end boss, the vertical section lower end surface of plate placement state and gap bridge belt feeder 21 Between frictional force, drive plate along direction of transfer forward is detached from limits conveyer belt, so that plate is moved quickly into gap bridge belt feeder On 21, and plane where the 21 lower end upper surface of gap bridge belt feeder is higher than plane where 32 wheel face upper end of roller group, and plate will It is quickly sent to the top of roller group 32, under the effect of gravity, plate pushes down one that gap bridge belt feeder 21 is equipped with clump weight 23 End downwardly turns over mobile a distance, and plane is lower than 32 wheel face upper end of roller group where making 21 lower end upper surface of gap bridge belt feeder Place plane, under the blocking of baffle 34, the vertical section of plate integrally falls into the gap between roller group 32 and mounting bracket 31 In, the horizontal segment of plate then rests on the wheel face of roller group 32.

At this point, after inductor 33 detects plate, signal is issued to controller 4, and controller 4, which receives to issue after the signal, to be referred to Starting driving motor (not indicating) is enabled, and drives roller group 32 along the side perpendicular with the direction of transfer of gap bridge belt feeder 21 To plate is sent to mud-coated equipment (not indicating)；Finally, when there is no plate on the wheel face that inductor 33 detects roller group 32 When, signal occurs to controller 4, controller 4, which issues instruction, makes driving motor stop operating, 21 feeding of gap bridge belt feeder is waited, It repeats the above steps, completes the trimming processing of plate.

In process, when the eminence termination of gap bridge belt feeder 21 contacts plate, to the corresponding end of gap bridge belt feeder 21 Pressure is generated, spring 26 has buffer function to pressure, and keeps the oblique direction of transfer of gap bridge belt feeder 21, guarantees plate in mistake Stability when being transmitted on bridge belt feeder 21.

If board quality is lighter, the hook of 26 upper end of spring is removed from the link of 25 lower end of the first connecting plate, by The overturning of two connecting plates 27 is placed on the fagging of gap bridge motor 22, and spring 26 is avoided to interfere with the first connecting plate 25；It has served as When the eminence termination of bridge belt feeder 21 contacts plate, plate generates pressure to the corresponding end of gap bridge belt feeder 21, although not bullet The buffer function of spring 26, but since plate is lighter, under the gravity of clump weight 23,21 moment of gap bridge belt feeder, which is pressurized, to be generated Deflection have no effect on the oblique direction of transfer of gap bridge belt feeder 21, and when the mobile center for passing through gap bridge belt feeder 21 of plate Afterwards, gap bridge belt feeder 21 can be restored to angularly disposed position again；Meanwhile limit of the gag lever post 24 to clump weight 23, it can also protect The upturned position for demonstrate,proving gap bridge belt feeder 21, can be always ensured that stability of the plate when moving on gap bridge belt feeder 21.

In the upper surface of gag lever post 24, cushion (not indicating) is set, it can be between dampened counterweight 23 and gag lever post 24 Impact force reduces the brinelling amount of corresponding position, guarantees the overturning radian of gap bridge belt feeder 21, prolongs the service life.

Such as the plate in the not instead of L shape section of processing, flat sheet, when starting processing, two limit conveyer belts It rotates simultaneously, and the boss 20 of corresponding position and parastate, on two limit conveyer belts, the two neighboring boss of corresponding position Interstitial site between 20 be also it is one-to-one, by plate be placed horizontally in two of corresponding position on two limit conveyer belts it is convex Between platform 20, and 13 direction of horizontal direction limit plate pushes, and one end of plate axial direction is made to abut positioning with limit plate 13, subsequent The splicing height of adaptive adjustment gap bridge belt feeder 21 and roller group 32, and trimming and transmission are realized by foregoing teachings.

In transmit process, because gap bridge belt feeder 21 can turn clockwise certain angle under the action of plate gravity, to keep away Exempt from gap bridge belt feeder 21 to interfere when turning anticlockwise with plate under the action of spring 26, the delay and transmission of inductor 33 The revolving speed of motor is able to carry out adaptive adjustment；In the case where no connecting spring 26, lighter plate can also make gap bridge belt There is small size rotary movement in machine 21, in order to avoid being flipped interference to the plate transmitted in place in splicing, also copes with The delay of inductor 33 and the revolving speed of driving motor are adaptively adjusted.

The non-description section of the utility model is consistent with the prior art, and this will not be repeated here.

The above is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all benefits The equivalent structure made by the utility model specification and accompanying drawing content is directly or indirectly used in other relevant technology necks Domain, similarly within the scope of patent protection of the utility model.

Claims (8)

1. a kind of double cutting head sawing machines, it is characterised in that: set gradually including pedestal (1), controller (4) and along machine direction Saw material device, gap bridge transmitting device and transhipment transmitting device on pedestal (1), the saw material device includes arranged in parallel The first limit conveyer belt (11) and the second limit conveyer belt (12), described first, which limits conveyer belt (11), is connected with and is installed in bottom The first fixed frame (17) on seat (1), first fixed frame (17) is equipped with fixed plate, fixed limited in the fixed plate Position plate (13) is rotatably connected to screw rod (5) on first fixed frame (17)；Second limit conveyer belt (12) is connected with second Fixed frame (18), second fixed frame (18) are equipped with the second link block (51), and the front of motor of the screw rod (5) is equipped with one section Screw thread, the end of thread of the screw rod (5), which is spirally connected, is fed through the second link block (51), which is equipped with supporting plate, In The supporting plate is equipped with graduated scale (19)；The one end of corresponding second fixed frame (18) is equipped with one section of graduation mark on the pedestal (1) (8), it is also set in parallel on the pedestal (1) there are two guide rail (6), second fixed frame (18) is slidably connected on guide rail (6)；In The side of two fixed frames is respectively provided with an electric saw (14) and a pinch roller mounting plate (15), two electric saws (14) and pinch roller Mounting plate (15) is symmetrical arranged, and each electric saw (14) is respectively connected with the Electric saw motor being installed on corresponding end fixed frame, Each pinch roller mounting plate (15) is fixedly connected with the fixed frame of corresponding end, is equipped on each pinch roller mounting plate (15) One group of pinch roller (16), pinch roller described in two groups (16) are located at the surface of corresponding end limit conveyer belt；The gap bridge transmission dress It sets including two gap bridge belt feeders (21) disposed in parallel, one end of each gap bridge belt feeder (21) is equipped with damping device, The other end is equipped with clump weight (23), and the lower section of the clump weight (23) is equipped with the gag lever post (24) being fixed on pedestal (1)；It is described Transhipment transmitting device includes mounting bracket (31) and the inductor (33) being installed on mounting bracket (31), in installation branch Frame (31) is equipped with baffle (34), which is equipped with roller group (32) towards the side of gap bridge belt feeder (21), institute The direction of transfer for stating the direction of transfer and gap bridge belt feeder (21) of roller group (32) is mutually perpendicular to, the first limit conveyer belt (11), the second limit conveyer belt (12), gap bridge belt feeder (21), roller group (32) and inductor (33) with controller (4) Connection.

2. a kind of double cutting head sawing machines according to claim 1, it is characterised in that: the bottom pair of second fixed frame (18) The position of guide rail (6) is answered to be equipped with guide groove, the guide groove is socketed on guide rail (6)；It is fixed on first fixed frame (17) There are the first link block (52), is embedded with bearing (53) on first link block (52), the mesoporous and silk of the bearing (53) The corresponding end tight fit of bar (5) is socketed；The screw rod (5) sets threaded one end equipped with handwheel (9), and rotation hand wheel (9) drives silk Bar (5) rotation, since the second link block (51) and screw rod (5) are spirally connected, can be such that the second fixed frame (18) moves on guide rail (6), To adjust the spacing between the first fixed frame (17) and the second fixed frame (18).

3. a kind of double cutting head sawing machines according to claim 2, it is characterised in that: be equipped on each guide rail (6) Two limited blocks (7), two limited blocks (7) are located at the two sides of the second fixed frame (18) in the direction of movement.

4. a kind of double cutting head sawing machines according to claim 3, it is characterised in that: be equipped with screw thread on the limited block (7) Through-hole is spirally connected in the tapped through hole and is equipped with fixing bolt, the traversing through end and the corresponding position on guide rail (6) of the fixing bolt It abuts and fixes.

5. a kind of double cutting head sawing machines according to claim 1, it is characterised in that: first limit conveyer belt (11) and the In two limits conveyer belt (12), it is all uniformly provided at least one boss (20), the boss of corresponding position on two limit conveyer belts (20) it corresponds.

6. a kind of double cutting head sawing machines according to claim 1, it is characterised in that: the damping device includes being connected to gap bridge The lower end of first connecting plate (25) of belt feeder (21) one end, first connecting plate (25) is linked with spring (26), the bullet The other end of spring (26) is fixedly connected with the second connecting plate (27)；The gap bridge belt feeder (21) sets there are two driven wheel and one Driving wheel, the driving wheel are located between two driven wheels, which is connected with the gap bridge motor being installed on pedestal (1) (22), the gap bridge motor (22) is equipped with fagging, and the upper surface of the fagging hingedly connects with the second connecting plate (27) upper surface It connects.

7. a kind of double cutting head sawing machines according to claim 6, it is characterised in that: the top of the spring (26), which is equipped with, to hang Hook, the lower end of first connecting plate (25) are equipped with link, and the hook is mounted with link.

8. a kind of double cutting head sawing machines according to claim 5, it is characterised in that: each gap bridge belt feeder (21) is It is obliquely installed, the eminence end of the gap bridge belt feeder (21) is towards the limit conveyer belt of corresponding end, and lower end is towards roller group (32)； Plane where gap bridge belt feeder (21) the eminence end upper surface is higher than plane where corresponding end limit conveyer belt upper surface, and Lower than plane where corresponding end boss (20) upper surface, plane is higher than idler wheel where gap bridge belt feeder (21) the lower end upper surface Plane where group (32) wheel face upper end.