CN210061629U

CN210061629U - Fixed length value adjustable slabstone cutting machine

Info

Publication number: CN210061629U
Application number: CN201920552951.8U
Authority: CN
Inventors: 徐孝剑
Original assignee: Shaoxing Yancai New Building Materials Co Ltd
Current assignee: Shaoxing Yancai New Building Materials Co Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2020-02-14
Anticipated expiration: 2029-04-22

Abstract

The utility model relates to a stone material cutting process equipment field discloses a fixed length value adjustable slabstone cutting machine, which comprises a frame, a workbench, fixing device, cutting device and length fixing device, workstation and cutting device all locate in the frame, fixing device locates and is used for fixed slabstone on the workstation, cutting device is used for cutting the slabstone, length fixing device includes limit length board and length adjustment spare, limit length board slides along slabstone length direction and installs on the workstation, length adjustment spare includes the forked tail slider, forked tail spout and adjusting screw, forked tail spout all is parallel with slabstone length direction with adjusting screw, adjusting screw rotates and installs on the workstation, forked tail slider threaded connection just slides on adjusting screw and connects in the forked tail spout, limit length board and forked tail slider fixed connection. The utility model discloses utilize and adjust the lead screw and rotate and drive the limit for length board and be close to or keep away from cutting device to change the length that slabstone cut off, can change the definite length value as required.

Description

Fixed length value adjustable slabstone cutting machine

Technical Field

The utility model belongs to stone material cutting process equipment field, in particular to fixed length value adjustable slabstone cutting machine.

Background

The slabstone cutting machine is a device for cutting a large slabstone into small slabstones, and there are two common cases that a long slabstone is cut into sections or the large slabstone is cut into a plurality of strip-shaped stones along the width direction.

The existing stone plate cutting machine for cutting stone plates into sections comprises a rack, a workbench, a fixing device, a cutting device and a length control device, wherein the workbench and the cutting device are both installed on the rack, the fixing device is installed on the workbench and used for fixing the stone plates, and the cutting device is used for cutting the stone plates. The length control device comprises a length limiting plate, the length limiting plate is installed on the workbench and used for supporting the end portion of the stone plate, the fixing device comprises a fixing side plate fixed on the workbench, the cutting device comprises a driving motor and a feeding mechanism connected with the driving motor and used for driving a rotating cutting knife by the driving motor and driving the cutting knife to transversely feed when cutting, and the cutting knife is located between the end portions of the length limiting plate and the fixing side plate towards the length limiting plate.

When the slabstone cutting machine is used, the distance between the length limiting plate and the cutting knife in the cutting device is fixed, so that the slabstone with other fixed length values cannot be cut quickly and efficiently.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a fixed length value adjustable slabstone cutting machine, the distance between the cutting position of limit length board and cutting knife can be adjusted to can adjust the value of fixed length, play the slabstone of the different fixed length values of cutting fast and high-efficiently.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a fixed length value adjustable slabstone cutting machine, includes frame, workstation, fixing device, cutting device and length fixing device, workstation and cutting device all set up in the frame, and fixing device sets up and is used for fixed slabstone on the workstation, and cutting device is used for cutting the slabstone, length fixing device includes limit length board and length adjustment spare, limit length board slides along slabstone length direction and installs on the workstation and lie in one side of cutting device back to fixing device, length adjustment spare includes forked tail slider, forked tail spout and adjusts the lead screw, the forked tail spout with it is all parallel with slabstone length direction to adjust the lead screw, it rotates and installs on the workstation to adjust the lead screw, forked tail slider threaded connection just slides on adjusting the lead screw and connects in the forked tail spout, limit length board with forked tail slider fixed connection.

By adopting the technical scheme, when the cutting device is used, the fixing device fixes the stone slab on the workbench, one end of the stone slab props against the length limiting plate, and the distance between the length limiting plate knife cutting devices is the length of the stone slab cut off during cutting; thereby adjust the lead screw through rotating and make the forked tail slider remove in the forked tail spout and drive the limit for length board on the forked tail slider and be close to or keep away from cutting device, then guarantee the tip top of slabstone on the limit for length board to the length of the slabstone that the change cutting got off, simple structure, it is convenient to adjust, can adjust the position of limit for length board as required, thereby cut out the slabstone of different fixed lengths.

Further setting the following steps: the adjusting screw rod is located in the dovetail sliding groove and is rotatably installed on one end wall of the dovetail sliding groove, one end of the adjusting screw rod extends out of the dovetail sliding groove and is provided with a hand wheel.

By adopting the technical scheme, the adjusting screw rod is arranged in the dovetail sliding groove, so that the installation space can be saved; the adjusting screw rod can be conveniently rotated and adjusted through the hand wheel, and operation is facilitated.

Further setting the following steps: the length limiting plate is provided with an upper pressing assembly, the upper pressing assembly comprises an upper pressing bolt, an upper pressing plate and a jacking nut, the upper pressing bolt penetrates through the upper pressing plate and is in threaded connection with the top end of the length limiting plate, the jacking nut is in threaded connection with the upper pressing bolt, the jacking nut is located below the upper pressing plate and is tightly abutted to the bottom of the upper pressing plate, and the bottom surface of the upper pressing plate is tightly abutted to the top of the stone plate.

Through adopting above-mentioned technical scheme, thereby the upper surface of pushing down the slabstone through the top board prevents that the rotation of vertical direction from taking place for the slabstone when the cutting from influencing the cutting process, and the height of top board can be adjusted through rotating the top cap nut, and the top nut is used for conflicting to support the top board.

Further setting the following steps: fixing device includes left side board, right side board and supports the piece, left side board and right side board are located the slabstone both sides respectively, the left side board is fixed in on the workstation, the right side board is placed on the workstation, thereby support the piece and install and be used for pushing the right side board left side board place direction on the workstation and press from both sides the slabstone between left side board and right side board.

Through adopting above-mentioned technical scheme, during the use, place the slabstone between left side board and right side board, the tip and the length control device of slabstone withstand to guarantee the length of cutting at every turn, utilize to support the piece to withstand the slabstone, it is hand to replace the workman, then start cutting device and cut the slabstone, simple structure need not the hand slabstone of workman during the cutting, and is safer.

Further setting the following steps: the abutting piece comprises an abutting plate and an abutting spring, the abutting plate is arranged on the fixed plate and is positioned on one side, back to the top plate, of the right side plate, and two ends of the abutting spring are abutted to the right side plate and the abutting plate respectively.

Through adopting the above technical scheme, when placing the slabstone, promote the right side board to conflict board direction earlier, make to support tight spring compressed, make the right side board keep away from the left side board, thereby increase the width between left side board and the right side board, can be more convenient put into the slabstone wherein, then release and support the touch panel, make to support tight spring to resume, support the curb plate tightly on the slabstone side, the slabstone is placed the back, support tight spring and be in compression state, fix the slabstone between left side board and right side board better through the support tight power of supporting tight spring, moreover, the steam generator is simple in structure, material loading and fixed convenient operation.

Further setting the following steps: and the abutting plate is in threaded connection with an adjusting bolt, and the tail part of the adjusting bolt abuts against the abutting spring.

Through adopting above-mentioned technical scheme, through adjusting bolt with support tight spring butt, can support the actual length of tight spring through rotating adjusting bolt adjustment to the initial elastic force that supports tight spring is changed, thereby, support the ageing and can support tight spring through the adjusting bolt compression when elasticity is not enough and thereby reduce the initial length that supports tight spring and guarantee that the right side board treats the fixed power of processing slabstone.

Further setting the following steps: the bottom end face of the adjusting bolt is provided with an annular clamping groove, and the end part of the abutting spring is clamped in the annular clamping groove.

Through adopting above-mentioned technical scheme, the tip card that supports tight spring is established and in the ring groove, can guarantee adjusting bolt and the good butt of tip that supports tight spring when right side board slides and supports tight spring shrink.

Further setting the following steps: the abutting springs are at least two and distributed along the length direction of the abutting plate.

Through adopting above-mentioned technical scheme, two support the tight spring the power can be better support the touch panel, and the atress is more balanced, prevents that the touch panel from taking place the incline and influencing the fixed of slabstone and processing.

Further setting the following steps: thereby cutting device includes cutting knife, driving motor and is used for driving the cutting knife to feed along slabstone width direction and cuts off the feed mechanism of slabstone, driving motor sets up in the frame, the feed groove along slabstone width direction is seted up to the workstation, the cutting knife bottom is located the feed groove just is located between limit length board and the left side board, driving motor's output shaft and cutting knife coaxial coupling.

By adopting the technical scheme, the cutting device comprises the cutting knife, the driving motor and a feeding mechanism used for driving the cutting knife to feed along the width direction of the stone slab to cut off the stone slab, the driving motor is arranged on the rack, the workbench is provided with a feeding groove along the width direction of the stone slab, the bottom end of the cutting knife is positioned in the feeding groove and positioned between the length limiting plate and the left side plate, and the output shaft of the driving motor is coaxially connected with the cutting knife.

Further setting the following steps: the feeding mechanism comprises a feeding motor, a feeding gear and a feeding rack. The feeding motor is arranged on the workbench, the feeding gear is fixed on an output shaft of the feeding motor, the length direction of the feeding rack is parallel to the width direction of the stone plate, the driving motor and the cutting knife are arranged on the workbench in a sliding mode along the width direction of the stone plate and are fixedly connected with the feeding rack, and the feeding rack is meshed with the feeding gear.

Through adopting above-mentioned technical scheme, feed motor rotates and drives and feed gear revolve to thereby drive and feed gear engagement's feeding rack and remove, thereby drive driving motor and cutting knife when feeding rack and removing and cut off slabstone along slabstone width direction removal, when feeding motor reversal, drive cutting knife and driving motor reset.

To sum up, the utility model discloses following beneficial effect has:

1. when the cutting device is used, the fixing device fixes the stone slab on the workbench, one end of the stone slab props against the length limiting plate, and the distance between the length limiting plate knife cutting devices is the length of the stone slab cut off during cutting; the dovetail sliding block moves in the dovetail sliding groove by rotating the adjusting lead screw, so that the length limiting plate on the dovetail sliding block is driven to be close to or far away from the cutting device, and then the end part of the stone slab is enabled to be propped against the length limiting plate, so that the length of the cut stone slab is changed, the structure is simple, the adjustment is convenient, the position of the length limiting plate can be adjusted as required, and thus stone slabs with different fixed lengths are cut;

2. the adjusting bolt is abutted with the abutting spring, the actual length of the abutting spring can be adjusted by rotating the adjusting bolt, so that the initial elastic force of the abutting spring is changed, and in addition, when the abutting spring is aged and the elastic force is insufficient, the abutting spring can be compressed by the adjusting bolt, so that the initial length of the abutting spring is reduced, and the fixing force of the right side plate on the stone plate to be processed is ensured;

3. when placing the slabstone, promote the right side board to conflict board direction earlier, make to support tight spring compressed, make the right side board keep away from the left side board, thereby increase the width between left side board and the right side board, can be more convenient put into the slabstone wherein, then release and support the touch panel, make to support tight spring to resume, support the curb plate tightly on the slabstone side, the slabstone is put the back, support tight spring and be in compression state, fix the slabstone between left side board and right side board better through the support tight power of supporting tight spring, moreover, the steam generator is simple in structure, material loading and fixed convenient operation.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

fig. 2 is a schematic structural diagram of the present embodiment, which is used for illustrating the structure of the length control device and the pressing member;

FIG. 3 is an enlarged view of FIG. 1 at A;

FIG. 4 is an enlarged view of FIG. 2 at B;

fig. 5 is an enlarged view of fig. 2 at C.

Reference numerals: 1. a frame; 11. a work table; 2. a fixing device; 21. a left side plate; 22. a right side plate; 23. an abutting piece; 24. a touch plate; 25. the spring is tightly propped; 26. a limiting groove; 27. a limiting block; 28. adjusting the bolt; 29. an annular neck; 3. a cutting device; 31. a cutting knife; 32. a drive motor; 33. a feed mechanism; 34. a feed motor; 35. a feed gear; 36. a feed rack; 37. a feed slot; 38. a rack mounting bracket; 4. a length fixing device; 41. a length limiting plate; 42. a length adjustment member; 43. a dovetail slide block; 44. a dovetail chute; 45. adjusting the lead screw; 46. a hand wheel; 5. an upper pressing assembly; 51. pressing the bolt upwards; 52. an upper pressure plate; 53. tightly pushing the screw cap; 6. a compression member; 61. pressing the lead screw; 62. pressing the sliding block; 63. a restricting chute; 64. briquetting; 65. an adjusting plate; 66. a connecting rod; 7. a buffer member; 71. a buffer spring; 72. a slide bar; 73. a limit ring sheet; 74. a rubber block.

Detailed Description

A stone plate cutting machine with adjustable fixed length value is shown in figures 1 and 2 and comprises a machine frame 1, a workbench 11, a fixing device 2, a cutting device 3 and a fixed length device 4, wherein the workbench 11 is fixed on the machine frame 1.

As shown in fig. 1, the fixing device 2 includes a left side plate 21, a right side plate 22, and an abutting member 23, and the abutting member 23 includes an abutting plate 24 and an abutting spring 25.

As shown in fig. 1, the left side plate 21 is fixed on the workbench 11, a limiting groove 26 perpendicular to the length direction of the left side plate 21 is formed in the workbench 11, the limiting groove 26 is located on one side of the left side plate 21, a limiting block 27 is integrally protruded at the bottom of the right side plate 22, the limiting block 27 is connected to the limiting groove 26 in a sliding manner, and a clamping opening for placing a stone plate is formed between the right side plate 22 and the left side plate 21.

As shown in fig. 1 and fig. 3, the contact plate 24 is fixed on the workbench 11 in parallel with the right side plate 22, the contact plate 24 is located on one side of the right side plate 22 back to the left side plate 21, the contact plate 24 is connected with three adjusting bolts 28 distributed along the length direction of the contact plate 24 in a threaded manner, the heads of the adjusting bolts 28 are located on one side of the contact plate 24 back to the right side plate 22, the tail of the adjusting bolts 28 is provided with an annular clamping groove 29, the contact spring 25 is three and distributed along the length direction of the contact plate 24, one end of the contact spring 25 is clamped in the annular clamping groove 29, and the other end of the contact spring is fixed on the surface of the right side plate 22 back to the left side plate 21.

As shown in fig. 1 and 2, the cutting device 3 includes a cutting blade 31, a driving motor 32, and a feeding mechanism 33, and the feeding mechanism 33 includes a feeding motor 34, a feeding gear 35, and a feeding rack 36.

As shown in fig. 1 and 2, the table 11 is provided with a feed groove 37 perpendicular to the left side plate 21, and the feed groove 37 extends in the slab width direction and penetrates the table 11. The feeding motor 34 is fixed on the working table 11, the feeding gear 35 is fixed on the output shaft of the feeding motor 34, and the feeding rack 36 is arranged along the length direction of the stone slab and meshed with the feeding gear 35.

As shown in fig. 1 and 2, a rack mounting bracket 38 is fixed on the table 11, the feeding rack 36 is slidably disposed in the rack mounting bracket 38, the rack mounting bracket 38 supports and guides the feeding rack 36, and the feeding rack 36 is fixed at the bottom of the driving motor 32 and meshed with the feeding gear 35. The cutting knife 31 is vertically arranged and fixed on the output shaft of the driving motor 32, and the bottom end of the cutting knife 31 extends into the feeding groove 37. The back and forth movement of the cutting knife 31 along the width direction of the stone plate is realized through the positive and negative rotation of the feeding motor 34, and the rotation of the driving motor 32 drives the cutting knife 31 to rotate so as to realize the cutting of the stone plate.

As shown in fig. 2, the length control device 4 includes a length limiting plate 41 and a length adjusting member 42, and the length adjusting member 42 includes a dovetail slider 43, a dovetail slide 44, and an adjusting screw 45.

As shown in fig. 2 and 4, the dovetail groove 44 is opened on the surface of the table 11 and is parallel to the length direction of the stone plate, the adjusting screw 45 is installed in the dovetail groove 44, one end of the adjusting screw 45 is rotatably installed on the end wall of the dovetail groove 44, and the adjusting screw 45 and the end of the dovetail groove 44 rotatably installed penetrate through the table 11 and are fixed with the hand wheel 46. The dovetail slide 43 is slidably mounted in the dovetail slide groove 44 and is threadedly connected to a portion of the adjustment screw 45 located in the dovetail slide groove 44. One end of the dovetail slide block 43, which is back to the hand wheel 46, extends outwards to form a dovetail slide groove 44, and is fixedly connected with the length limiting plate 41. When the hand wheel 46 is rotated, the dovetail slide block 43 can be driven to move along the length direction of the stone plate, so that the length limiting plate 41 is close to or far away from the end part of the left side plate 21.

The length restriction plate 41 is vertically disposed toward the side of the left side plate 21 in the longitudinal direction of the left side plate 21 so that the end of the slate board can abut on the side of the length restriction plate 41.

As shown in fig. 1 and 4, the length-limiting plate 41 is provided with an upper pressing assembly 5, the upper pressing assembly 5 includes an upper pressing bolt 51, an upper pressing plate 52 and a tightening nut 53, the upper pressing bolt 51 passes through the upper pressing plate 52 and is screwed to the top end of the length-limiting plate 41, the tightening nut 53 is screwed to the upper pressing bolt 51, the tightening nut 53 is located below the upper pressing plate 52 and is pressed against the bottom of the upper pressing plate 52, and the bottom surface of the upper pressing plate 52 is pressed against the top of the slate board.

As shown in fig. 1 and 5, the table 11 is provided with a pressing member 6, and the pressing member 6 includes a pressing screw 61, a pressing slider 62, a limiting chute 63, and a pressing block 64. An adjusting plate 65 is fixed on the workbench 11, the adjusting plate 65 is vertically arranged and located on one side of the left side plate 21 back to the right side plate 22, the limiting sliding groove 63 is vertically arranged on the adjusting plate 65, the compression screw 61 is rotatably installed in the limiting sliding groove 63, and the top end of the compression screw penetrates through the top end of the adjusting plate 65. The hold-down slider 62 slides in the limit chute 63 and is screwed to the hold-down screw 61. The pressing block 64 is fixed on the pressing slide block 62 through a connecting rod 66, and the connecting rod 66 extends towards the direction above the stone plate, so that one end of the connecting rod 66 back to the pressing slide block 62 is positioned above the position between the left side plate 21 and the right side plate 22.

The pressing block 64 is arranged on the connecting rod 66 through a buffer 7, and the buffer 7 comprises a buffer spring 71, a slide rod 72 and a limit ring piece 73.

As shown in fig. 1 and 5, the sliding rod 72 vertically penetrates through the connecting rod 66, the pressing block 64 is fixed at the bottom end of the sliding rod 72, a rubber block 74 is fixed at the bottom end of the pressing block 64, the pressing block 64 is located right above the clamping opening and located at one side of the cutting knife 31 and the side back to the length limiting plate 41, the buffer spring 71 is sleeved on the sliding rod 72 and located between the connecting rod 66 and the pressing block 64, and the limiting ring piece 73 is welded on the sliding rod 72 and located at one side of the connecting rod 66 back to the pressing block 64. When the hold-down screw 61 rotates, the hold-down slider 62 moves up and down to drive the press block 64 to move up and down. When the pressing block 64 moves downwards, the rubber block 74 is tightly abutted to the upper surface of the stone slab, the buffer spring 71 contracts and provides downward abutting force for the stone slab, so that the tail of the stone slab is not easy to tilt or jump in the vertical direction.

The use principle is as follows:

make the forked tail slider 43 slide in forked tail spout 44 through rotating hand wheel 46 to the limit for length board 41 that the drive is connected with forked tail slider 43 moves in slabstone length direction, thereby adjusts limit for length board 41 towards the side of slabstone to the distance between the cutting knife 31, thereby the length of the slabstone that cuts when the adjustment cutting knife 31 cuts the slabstone.

After the adjustment is completed, the right side plate 22 is slid in the direction away from the left side plate 21, so that the clamping opening is widened, the stone plate is placed in the clamping opening, then the right side plate 22 is released, and the right side plate 22 is slid along the limiting groove 26 and tightly pushed against the stone plate on the left side plate 21 under the action of the restoring force of the abutting spring 25.

The upper press bolt 51 is then turned and the top nut 53 is tightened so that the bottom surface of the upper press plate 52 just abuts the upper surface of the slate.

The pressing screw 61 is rotated so that the pressing slider 62 moves up and down, so that the rubber block 74 is pressed against the upper surface of the slate, and the pressing force of the rubber block 74 against the slate is adjusted by continuing to rotate the pressing screw 61.

Then the driving motor 32 is started to drive the cutting knife 31 to rotate, the feeding motor 34 is started, the feeding motor 34 rotates forwards, the cutting knife 31 is driven to move towards the surface of the left side plate 21 through the feeding gear 35 and the feeding rack 36, and the cutting knife moves continuously under the condition that the feeding motor 34 continues to rotate forwards, so that the stone plate is cut off. When the slate is cut, the feed motor 34 is controlled to rotate reversely so as to reset the cutting knife 31.

The cut slate is then removed, the remaining slate is pushed toward the length limiting plate 41 so that the end of the slate abuts against the length limiting plate 41 again, and then the feeding motor 34 is started again to complete the second cutting, and so on.

It is also possible to push the end of the slab to be cut left over onto the length-limiting plate 41 after the cutting knife 31 cuts the slab, and then to control the feed motor 34 to reverse so that the cutting knife 31 moves in the direction of return and cuts a second section of the slab while moving, and so on.

The pressing force of the right side plate 22 on the stone slab can be adjusted by rotating the adjusting bolt 28, and the rotating of the adjusting bolt 28 continues to compress the pressing spring 25 so as to increase the pressing force of the right side plate 22 on the stone slab.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a fixed length value adjustable slabstone cutting machine, includes frame (1), workstation (11), fixing device (2), cutting device (3) and fixed length device (4), workstation (11) and cutting device (3) all set up on frame (1), and fixing device (2) set up and are used for fixed slabstone on workstation (11), and cutting device (3) are used for cutting its characterized in that to slabstone: fixed length device (4) are including limit for length board (41) and length adjustment spare (42), limit for length board (41) slide along slabstone length direction and install on workstation (11) and be located cutting device (3) one side back to fixing device (2), length adjustment spare (42) include forked tail slider (43), forked tail spout (44) and adjust lead screw (45), forked tail spout (44) with adjust lead screw (45) and all be parallel with slabstone length direction, adjust lead screw (45) and rotate and install on workstation (11), forked tail slider (43) threaded connection just slides and connect in forked tail spout (44) on adjusting lead screw (45), limit for length board (41) with forked tail slider (43) fixed connection.

2. A slabstone cutting machine adjustable in length value according to claim 1, wherein: adjust lead screw (45) and be located dovetail groove (44) and rotate and install on an end wall of dovetail groove (44), adjust the one end of lead screw (45) and stretch out dovetail groove (44) and install hand wheel (46).

3. A slabstone cutting machine adjustable in length value according to claim 2, wherein: be provided with on limit for length board (41) and press subassembly (5), it includes top compression bolt (51), top board (52) and top lock nut (53) to press subassembly (5) on, top compression bolt (51) pass top board (52) and threaded connection in limit for length board (41) top, top lock nut (53) threaded connection is on top compression bolt (51), top lock nut (53) are located top board (52) below and support tightly with top board (52) bottom, the bottom surface and the slabstone top of top board (52) support tightly.

4. A slabstone cutting machine adjustable in length value according to claim 1, wherein: fixing device (2) include left side board (21), right side board (22) and support piece (23), left side board (21) and right side board (22) are located the slabstone both sides respectively, left side board (21) are fixed in on workstation (11), place on workstation (11) right side board (22), thereby support piece (23) install be used for on workstation (11) with right side board (22) left side board (21) place direction promote with the slabstone clamp between left side board (21) and right side board (22).

5. A slabstone cutting machine adjustable in length value of claim 4, wherein: support the piece (23) including supporting touch panel (24), support tight spring (25), support touch panel (24) and set up on the fixed plate and be located right side board (22) one side back to the roof, support the both ends of tight spring (25) respectively with right side board (22) and conflict board (24) inconsistent.

6. A slabstone cutting machine adjustable in length value of claim 5, wherein: the contact plate (24) is in threaded connection with an adjusting bolt (28), and the tail of the adjusting bolt (28) is abutted against the abutting spring (25).

7. A slabstone cutting machine adjustable in length value of claim 6, wherein: an annular clamping groove (29) is formed in the end face of the bottom of the adjusting bolt, and the end portion of the abutting spring (25) is clamped in the annular clamping groove (29).

8. A slabstone cutting machine adjustable in length value of claim 7, wherein: the abutting springs (25) are at least two and distributed along the length direction of the abutting plate (24).

9. A slabstone cutting machine adjustable in length value according to claim 1, wherein: cutting device (3) include cutting knife (31), driving motor (32) and be used for driving cutting knife (31) and feed thereby feed mechanism (33) that cut off slabstone along slabstone width direction, driving motor (32) set up on frame (1), feeding groove (37) along slabstone width direction are seted up in workstation (11), cutting knife (31) bottom is located in feeding groove (37) and be located between limit for length board (41) and left side board (21), the output shaft and the cutting knife (31) coaxial coupling of driving motor (32).

10. A slabstone cutting machine adjustable in length of claim 9 wherein: the feeding mechanism (33) comprises a feeding motor (34), a feeding gear (35) and a feeding rack (36), the feeding motor (34) is arranged on the workbench (11), the feeding gear (35) is fixed on an output shaft of the feeding motor (34), the length direction of the feeding rack (36) is parallel to the width direction of the stone slab, the driving motor (32) and the cutting knife (31) are arranged on the workbench (11) in a sliding mode along the width direction of the stone slab and are fixedly connected with the feeding rack (36), and the feeding rack (36) is meshed with the feeding gear (35).