CN108044477B

CN108044477B - Folding-unfolding type cutting machine capable of accurately cutting

Info

Publication number: CN108044477B
Application number: CN201810031148.XA
Authority: CN
Inventors: 梁甬; 黄兆靖
Original assignee: Zhejiang Tiange Industry And Trade Co Ltd
Current assignee: Zhejiang Tiange industry and Trade Co., Ltd
Priority date: 2018-01-12
Filing date: 2018-01-12
Publication date: 2020-06-02
Anticipated expiration: 2038-01-12
Also published as: CN108044477A

Abstract

The invention provides a folding and unfolding type cutting machine capable of accurately cutting, and belongs to the technical field of machinery. The folding and unfolding type cutting machine capable of accurately cutting comprises a bottom plate and a cutting blade, wherein an installation platform is fixed on the bottom plate, an articulated shaft is arranged on the installation platform, a support frame is arranged on the articulated shaft, the support frame comprises a first plate and a second plate, a transmission shaft penetrates through the second plate, a safety cover is fixed on the second plate, a driving mechanism capable of driving the transmission shaft to rotate is arranged on the second plate, and a clamping mechanism is arranged on the bottom plate; the bottom plate is hinged with a first turnover block, the first turnover block is hinged with a first clamping strip and a second clamping strip, the first clamping strip and the second clamping strip are respectively provided with a first buckle and a second buckle, the bottom plate is hinged with a second turnover block, and the second turnover block is provided with a first clamping groove and a second clamping groove. The foldable combination has the advantage of being capable of accurately cutting workpieces.

Description

Folding-unfolding type cutting machine capable of accurately cutting

Technical Field

The invention belongs to the technical field of machinery, relates to a cutting machine, and particularly relates to a folding and unfolding type cutting machine capable of accurately cutting.

Background

With the development of the modern machining industry, the requirements on the cutting quality and precision are continuously improved, and the requirements on improving the production efficiency, reducing the production cost and having a high-intelligent automatic cutting function are also improved. The development of the numerical control cutting machine has to meet the requirements of the development of the modern mechanical processing industry. The cutting machine is classified into a flame cutting machine, a plasma cutting machine, a laser cutting machine, water cutting, and the like. The laser cutting machine has the fastest efficiency, the highest cutting precision and generally smaller cutting thickness. The plasma cutting machine has fast cutting speed and certain slope of the cut surface. The flame cutting machine is used for carbon steel materials with larger thickness. The laser cutting machine has the fastest efficiency, the highest cutting precision and generally smaller cutting thickness. The existing cutting machine has the defects that the friction force of a belt wheel is insufficient and the belt wheel is easy to slip in the working process, so that the surface of the belt wheel is easy to wear, and the service life is influenced.

Because of the above problems, for example, chinese patent literature discloses an automatic feed abrasive wheel cutting machine [ patent No.: ZL 201710226583.3; authorization notice number: CN107009248A ]. The automatic feeding abrasive wheel cutting machine comprises a base frame, an abrasive wheel, a protective cover, a motor, a precise guide rod and a locking rod, wherein the base frame is provided with a support rod, a guide rod seat and the locking rod; the driving wheel is provided with a belt groove, the surface of the belt groove is provided with a wear-resistant layer, and the surface of the belt groove is also provided with a plurality of semicircular convex hull structures.

However, the automatic feed abrasive wheel cutting machine has poor machining accuracy and poor flexibility in use due to inconvenient movement, and thus the machining efficiency is often affected.

Disclosure of Invention

The invention aims to provide a folding and unfolding type cutting machine capable of accurately cutting aiming at the problems in the prior art.

The purpose of the invention can be realized by the following technical scheme:

a folding and unfolding type cutting machine capable of cutting accurately comprises a bottom plate and a cutting blade and is characterized in that a mounting platform is fixed on the bottom plate, a hinged shaft is rotatably arranged on the mounting platform, two ends of the hinged shaft penetrate out of the mounting platform, a first torsional spring is sleeved at one end of the hinged shaft, one end of the first torsional spring is fixed on the hinged shaft, the other end of the first torsional spring is fixed on the mounting platform, a second torsional spring is sleeved at the other end of the hinged shaft, one end of the second torsional spring is fixed on the hinged shaft, the other end of the second torsional spring is fixed on the mounting platform, a support frame is arranged on the hinged shaft and comprises a first plate and a second plate, the first plate is fixed on the hinged shaft, the second plate is welded on the first plate, a first through hole is formed in the second plate, a transmission shaft penetrates through the first through hole, and a first bearing is fixed, a safety cover is fixed on a vertical surface of the second plate, a cutting blade is positioned in the safety cover, the safety cover is provided with a penetrating hole opposite to the first through hole of the second plate, one end of a transmission shaft penetrates through the penetrating hole and is arranged in the safety cover in a penetrating manner, the transmission shaft is in clearance fit with the safety cover, the penetrating end of the transmission shaft is fixed with the cutting blade, an operating rod is further fixed on the second plate, a cutting groove is further formed in the bottom plate, a driving mechanism capable of driving the transmission shaft to rotate is arranged on the second plate, and a clamping mechanism is arranged on the bottom plate; the clamping device is characterized in that a first turning block is hinged to one vertical face of the bottom plate, a first clamping strip and a second clamping strip are hinged to the other vertical face of the turning block, the first clamping strip and the second clamping strip are located on two sides of the first turning block, free ends of the first clamping strip and the second clamping strip are respectively provided with a first buckle and a second buckle, the other vertical face of the bottom plate is hinged to a second turning block, and a first clamping groove and a second clamping groove which are matched with the first buckle and the second buckle are formed in the second turning block.

When the cutting machine is in an out-of-operation state, the first turnover block and the second turnover block on the turnover bottom plate are enabled to be perpendicular to the bottom plate, the first card strip and the second turnover block are enabled to be perpendicular to the bottom plate, the first card strip and the second card strip are enabled to be on two sides of the first turnover block, the first card strip and the second card strip are enabled to be parallel to the bottom plate, meanwhile, the first card buckle on the first card strip and the second card buckle on the second card strip are respectively clamped to the first clamping groove and the second clamping groove on the second turnover block, folding of the cutting machine is achieved, occupation in the space of the cutting machine is reduced, and meanwhile the cutting machine.

When the cutting machine needs to work, the first buckle on the first clamping strip and the second buckle on the second clamping strip are separated from the first clamping groove and the second clamping groove on the second turnover block respectively, the first turnover block and the second turnover block are enabled to be parallel to the bottom plate, and meanwhile, the first clamping strip and the second clamping strip are turned to the two sides of the first turnover block, so that the cutting machine is unfolded, and a supporting platform is provided for a workpiece to be cut.

When external force towards the bottom plate acts on the operating rod, the support frame can be driven to rotate around the hinge shaft relatively, so that the cutting blade is driven to move towards the bottom plate, and cutting of soft materials such as plastic is achieved; and to steel cutting in-process, can start actuating mechanism, drive cutting blade through the transmission shaft and rotate, at the downstream of cooperation action bars to realize the cutting, cutting blade is located the safety guard, not only can improve the security in the cutting process, but also can play the effect of protection to cutting blade.

In the folding-unfolding type cutting machine capable of accurately cutting, the driving mechanism comprises a driving motor, the driving motor is fixed on the second plate through bolts and nuts, one end of an output shaft of the driving motor penetrates out of the second plate, a driving belt pulley is fixed at the penetrating end of the output shaft of the driving motor, the other end of the transmission shaft penetrates out of the second plate, a driven belt pulley is fixed at the penetrating end of the transmission shaft, and a belt is sleeved between the driving belt pulley and the driven belt pulley. The driving motor drives the driving belt pulley to rotate, the transmission shaft is driven to rotate through the belt and the driven belt pulley, and the cutting blade is rotated.

In the folding expansion cutting machine that can accurately cut, clamping mechanism include lead screw one, press from both sides tight piece one and press from both sides tight piece two, press from both sides tight piece one and press from both sides the relative side of tight piece two and all be equipped with anti-skidding rubber, and press from both sides tight piece one and fix on the bottom plate, press from both sides and seted up through-hole two on the tight piece two, be fixed with nut one on the inner wall of through-hole two, nut threaded connection is on lead screw one, the last fixed surface of bottom plate have bearing frame one, rotate on the bearing frame one and set up pivot one, bearing frame one is all worn out at the both ends of pivot one, the one end welding of lead screw one on pivot one, the other end of pivot.

The rotating handle drives the screw rod I to rotate through the rotating shaft, the nut I is in threaded connection with the screw rod I, and the clamping piece II can be driven to slide along the screw rod I, so that the workpiece is clamped before being cut, and shaking is prevented.

In the folding and unfolding type cutting machine capable of accurately cutting, a feeding mechanism is arranged on one side surface of the second turnover block, the first clamping groove and the second clamping groove are arranged on the other side surface opposite to the feeding mechanism, the feeding mechanism comprises a second screw rod and a sliding block, the second turnover block is provided with a chute, the slide block is arranged in the chute in a sliding manner, the slide block is provided with a third through hole, a second nut is fixed on the inner wall of the third through hole, the second nut is connected to the second screw rod in a threaded manner, a second bearing seat and a third bearing seat are fixed in the chute, the slide block is positioned between the second bearing seat and the third bearing seat, a second rotating shaft is rotatably arranged on the second bearing seat, two ends of the second rotating shaft penetrate through the second bearing seat, a feeding hand wheel is fixed at the other end of the second rotating shaft, and a third rotating shaft is rotatably arranged on the third bearing seat, and a second screw rod is fixed on the second rotating shaft and the third rotating shaft.

In the above-mentioned folding expansion cutting machine that can accurately cut, feed mechanism still include fixed plate and spring clamp, the last fixed surface of slider have riser one and riser two, the spring clamp set up between riser one and riser two, fixed plate horizontal fixation on a side of slider, the fixed plate be located the below of spring clamp free end, and the fixed plate is located the top of bottom plate.

The workpiece to be machined is placed on the fixing plate and is clamped through the spring clamp on the sliding block, the feeding hand wheel is rotated to drive the second lead screw to rotate through the second rotating shaft and the third rotating shaft, the second nut is in threaded connection with the second lead screw and can drive the sliding block to slide in the sliding groove along the second lead screw, and therefore feeding and positioning are achieved before the workpiece is cut.

In the folding and unfolding type cutting machine capable of accurately cutting, the bottom plate is further fixedly provided with a graduated scale, and one side surface of the graduated scale, on which graduated lines are marked, faces the sliding block. Through the graduated scale on the bottom plate, the feeding amount of the workpiece to be processed can be better controlled.

In the folding and unfolding type cutting machine capable of accurately cutting, a first shaft sleeve and a second shaft sleeve are fixed on the mounting platform, two ends of the hinged shaft penetrating out of the mounting platform are respectively located in the first shaft sleeve and the second shaft sleeve, and the first torsion spring and the second torsion spring are respectively located in the first shaft sleeve and the second shaft sleeve.

In the folding and unfolding type cutting machine capable of accurately cutting, the first turning block is provided with a square hole, and a portable plate is fixed on the inner wall of the square hole. Through at the fixed portable board of upset piece one to can be more convenient mention whole cutting machine, use more nimble, convenient.

In the folding and unfolding type cutting machine capable of accurately cutting, a start-stop switch is arranged on the second plate and electrically connected with a driving motor, a power line is connected to the start-stop switch, and a plug is arranged at the other end of the power line.

Compared with the prior art, the folding and unfolding type cutting machine capable of accurately cutting has the following advantages:

1. when the cutting machine is in an out-of-operation state, the first turnover block and the second turnover block on the turnover bottom plate are enabled to be perpendicular to the bottom plate, the first turnover block and the second turnover block are enabled to be parallel to the bottom plate, and meanwhile, the first buckle and the second buckle are respectively clamped into the first clamping groove and the second clamping groove, so that the cutting machine is folded, the space occupation of the cutting machine is reduced, and the cutting machine is convenient to carry.

2. When the cutting machine needs to work, the first buckle and the second buckle are separated from the first clamping groove and the second clamping groove respectively, the first turnover block and the second turnover block are enabled to be parallel to the bottom plate, and meanwhile, the first clamping strip and the second clamping strip are turned to the two sides of the first turnover block, so that the cutting machine is unfolded, and a supporting platform is provided for a workpiece to be cut.

3. When external force towards the bottom plate acts on the operating rod, the support frame can be driven to rotate around the hinge shaft relatively, so that the cutting blade is driven to move towards the bottom plate, and cutting of soft materials such as plastic is achieved; and to steel cutting in-process, can start driving motor, drive cutting blade through the transmission shaft and rotate, at the downstream of cooperation action bars to realize the cutting, cutting blade is located the safety guard, not only can improve the security in the cutting process, but also can play the effect of protection to cutting blade.

4. The spring clamp on the slider can press from both sides the work piece of treating to process tightly on the fixed plate, rotates and feeds the hand wheel and drive two rotations of lead screw through pivot two and pivot three, thereby can drive the slider and slide in the spout along two lead screws through nut two to the realization is fed the location before cutting the work piece, through the scale on the bottom plate, thereby the control that can be better treats the feed volume of processing the work piece.

5. The rotating handle drives the screw rod I to rotate through the rotating shaft, and the clamping piece II can be driven to slide along the screw rod I through the nut I, so that the workpiece is clamped before being cut, and shaking is prevented.

Drawings

FIG. 1 is a schematic perspective view of the folded present invention;

FIG. 2 is a schematic front view of the folded present invention;

FIG. 3 is a schematic perspective view of the present invention after deployment;

FIG. 4 is a schematic illustration of the invention in an expanded elevational configuration;

FIG. 5 is a schematic illustration of the invention in a deployed, left-side configuration;

fig. 6 is a partially enlarged schematic view of the structure at a in the present invention.

In the figure, 1, a bottom plate; 2. a cutting blade; 3. an installation table; 4. a first shaft sleeve; 5. a second shaft sleeve; 6. a plug; 7. a first plate; 8. a second plate; 9. a drive shaft; 10. a safety shield; 11. a drive motor; 12. a drive pulley; 13. a driven pulley; 14. a belt; 15. a first lead screw; 16. a first clamping sheet; 17. a second clamping piece; 18. a first bearing seat; 19. rotating the handle; 20. a first rotating shaft; 21. turning over the first block; 22. a first clamping strip; 23. a second clamping strip; 24. a first buckle is arranged; 25. a second buckle; 26. a first clamping groove; 27. a second screw rod; 28. a slider; 29. a second bearing seat; 30. a third bearing seat; 31. a feed hand wheel; 32. a chute; 33. a fixing plate; 34. a spring clip; 35. a graduated scale; 36. a carrying board; 37. a start-stop switch; 38. a power line; 39. an operating lever; 40. and a second overturning block.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 6, a folding and unfolding type cutting machine capable of accurately cutting comprises a base plate 1 and a cutting blade 2, wherein a first turning block 21 is hinged to one vertical surface of the base plate 1, a first clamping strip 22 and a second clamping strip 23 are hinged to the other vertical surface of the first turning block 21, the first clamping strip 22 and the second clamping strip 23 are located on two sides of the first turning block 21, free ends of the first clamping strip 22 and the second clamping strip 23 are respectively provided with a first buckle 24 and a second buckle 25, the other vertical surface of the base plate 1 is hinged to a second turning block 40, and the first clamping groove 26 and the second clamping groove which are matched with the first buckle 24 and the second buckle 25 are formed in the second turning block 40. The first turning block 21 is provided with a square hole, and a hand-held plate 36 is fixed on the inner wall of the square hole. Through at upset piece one 21 fixed portable board 36 to can be more convenient mention whole cutting machine, use more nimble, convenient.

As shown in fig. 3, a mounting platform 3 is fixed on a bottom plate 1, a hinge shaft is rotatably arranged on the mounting platform 3, two ends of the hinge shaft penetrate out of the mounting platform 3, one end of the hinge shaft penetrating out of the mounting platform 3 is sleeved with a first torsion spring, one end of the first torsion spring is fixed on the hinge shaft, the other end of the first torsion spring is fixed on the mounting platform 3, the other end of the hinge shaft penetrating out of the mounting platform 3 is sleeved with a second torsion spring, one end of the second torsion spring is fixed on the hinge shaft, the other end of the second torsion spring is fixed on the mounting platform 3, a support frame is arranged on the hinge shaft and comprises a first plate 7 and a second plate 8, the first plate 7 is fixed on the hinge shaft, the second plate 8 is welded on the first plate 7, a first through hole is formed in the second plate 8, a transmission shaft 9 penetrates through the first through hole, a first bearing is, cutting blade 2 is located safety cover 10, and safety cover 10 sets up the hole of wearing out relative with two 8 through-holes of plate, and the one end of transmission shaft 9 is passed and is worn to establish in safety cover 10 in the hole of wearing out, and transmission shaft 9 and safety cover 10 clearance fit, and the end of wearing out of transmission shaft 9 is fixed mutually with cutting blade 2, still is fixed with action bars 39 on two 8 plates, has still seted up the cut-off groove on the bottom plate 1. A first shaft sleeve 4 and a second shaft sleeve 5 are fixed on the mounting platform 3, two ends of the hinged shaft penetrating out of the mounting platform 3 are respectively located in the first shaft sleeve 4 and the second shaft sleeve 5, and the first torsion spring and the second torsion spring are respectively located in the first shaft sleeve 4 and the second shaft sleeve 5.

Be provided with on two 8 plates and drive 9 pivoted actuating mechanism of transmission shaft, actuating mechanism includes driving motor 11, driving motor 11 passes through bolt and nut to be fixed on two 8 plates, two 8 plates are worn out to driving motor 11's output shaft one end, the end of wearing out of 11 driving motor output shafts is fixed with driving pulley 12, two 8 plates are worn out to the other end of transmission shaft 9, and the end of wearing out of transmission shaft 9 is fixed with driven pulley 13, the cover is equipped with belt 14 between driving pulley 12 and the driven pulley 13. The driving motor 11 drives the driving belt pulley 12 to rotate, and the transmission shaft 9 is driven to rotate through the belt 14 and the driven belt pulley 13, so that the cutting blade 2 rotates. A start-stop switch 37 is arranged on the second plate 8, the start-stop switch 37 is electrically connected with the driving motor 11, a power line 38 is connected to the start-stop switch 37, and a plug 6 is arranged at the other end of the power line 38.

As shown in fig. 5, a clamping mechanism is arranged on a base plate 1, the clamping mechanism comprises a first screw rod 15, a first clamping piece 16 and a second clamping piece 17, anti-skid rubber is arranged on one side face, opposite to the first clamping piece 16 and the second clamping piece 17, of the first clamping piece 16, the first clamping piece 16 is fixed on the base plate 1, a second through hole is formed in the second clamping piece 17, a first nut is fixed on the inner wall of the second through hole, the first nut is in threaded connection with the first screw rod 15, a first bearing seat 18 is fixed on the upper surface of the base plate 1, a first rotating shaft 20 is arranged on the first bearing seat 18 in a rotating mode, two ends of the first rotating shaft 20 penetrate through the first bearing seat 18, one end of the first screw rod 15 is welded. The rotating handle 19 drives the first screw rod 15 to rotate through the first rotating shaft 20, the first nut is in threaded connection with the first screw rod 15, and the second clamping piece 17 can be driven to slide along the first screw rod 15, so that the workpiece is clamped before being cut, and shaking is prevented.

As shown in fig. 4, a feeding mechanism is arranged on one side surface of the second turning block 40, the first clamping groove 26 and the second clamping groove are arranged on the other side surface opposite to the feeding mechanism, the feeding mechanism comprises a second screw rod 27 and a sliding block 28, the second turning block 40 is provided with a sliding groove 32, the sliding block 28 is slidably arranged in the sliding groove 32, the sliding block 28 is provided with a third through hole, a second nut is fixed on the inner wall of the third through hole, the second nut is in threaded connection with the second screw rod 27, a second bearing seat 29 and a third bearing seat 30 are fixed in the sliding groove 32, the sliding block 28 is positioned between the second bearing seat 29 and the third bearing seat 30, a second rotating shaft is rotatably arranged on the second bearing seat 29, two ends of the second rotating shaft penetrate through the second bearing seat 29, a feeding hand wheel 31 is fixed on the other end of the second rotating shaft, a third rotating shaft is rotatably arranged on the third, a first vertical plate and a second vertical plate are fixed on the upper surface of the sliding block 28, the spring clamp 34 is arranged between the first vertical plate and the second vertical plate, the fixing plate 33 is horizontally fixed on one side surface of the sliding block 28, the fixing plate 33 is located below the free end of the spring clamp 34, and the fixing plate 33 is located above the bottom plate 1. The workpiece to be machined is placed on the fixing plate 33 and clamped through the spring clamp 34 on the sliding block 28, the feeding hand wheel 31 is rotated to drive the second lead screw 27 to rotate through the second rotating shaft and the third rotating shaft, the second nut is in threaded connection with the second lead screw 27 and can drive the sliding block 28 to slide in the sliding groove 32 along the second lead screw 27, and therefore feeding and positioning are achieved before the workpiece is cut. Still be fixed with scale 35 on the bottom plate 1, the side that scale 35 was carved with the scale mark is towards slider 28, through scale 35 on the bottom plate 1 to the amount of feed of treating the processing work piece can better control.

In summary, the working principle of the folding and unfolding type cutting machine capable of accurately cutting is as follows:

firstly, a first buckle 24 on a first clamping strip 22 and a second buckle 25 on a second clamping strip 23 are respectively separated from a first clamping groove 26 and a second clamping groove on a second turnover block 40, the first turnover block 21 and the second turnover block 40 are made to be parallel to a bottom plate 1, the first clamping strip 22 and the second clamping strip 23 are turned to two sides of the first turnover block 21, the cutting machine is unfolded, and a supporting platform is provided for a workpiece to be cut;

secondly, a workpiece to be machined is placed on a fixing plate 33 and clamped through a spring clamp 34 on the sliding block 28, a feeding hand wheel 31 is rotated to drive a second lead screw 27 to rotate through a second rotating shaft and a third rotating shaft, and a second nut is in threaded connection with the second lead screw 27 and can drive the sliding block 28 to slide in a sliding groove 32 along the second lead screw 27, so that feeding positioning before cutting of the workpiece is achieved;

thirdly, the rotating handle 19 drives the first screw rod 15 to rotate through the first rotating shaft 20, the first nut is in threaded connection with the first screw rod 15 and can drive the second clamping piece 17 to slide along the first screw rod 15, and therefore the workpiece is clamped before being cut and prevented from shaking;

then, when an external force towards the bottom plate 1 acts on the operating rod 39, the support frame can be driven to rotate relatively around the hinge shaft, so that the cutting blade 2 is driven to move towards the bottom plate 1, and cutting of soft materials such as cutting plastics is achieved; in the process of cutting steel, the driving mechanism can be started, the cutting blade 2 is driven to rotate through the transmission shaft 9 and moves downwards in cooperation with the operating rod 39, so that cutting is realized, the cutting blade 2 is positioned in the safety cover 10, the safety in the cutting process can be improved, and the cutting blade 2 can be protected;

finally, after the processing is finished, the first turning block 21 and the second turning block 40 on the bottom plate 1 are turned over, the first turning block 21 and the second turning block 40 are perpendicular to the bottom plate 1, the first clamping strip 22 and the second clamping strip 23 on two sides of the first turning block 21 are turned over, the first clamping strip 22 and the second clamping strip 23 are parallel to the bottom plate 1, meanwhile, the first clamping buckle 24 on the first clamping strip 22 and the second clamping buckle 25 on the second clamping strip 23 are clamped in the first clamping groove 26 and the second clamping groove 26 on the second turning block 40 respectively, the cutting machine is folded, the space occupation of the cutting machine is reduced, and meanwhile, the cutting machine is convenient to carry.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although 1, the bottom plate is used more herein; 2. a cutting blade; 3. an installation table; 4. a first shaft sleeve; 5. a second shaft sleeve; 6. a plug; 7. a first plate; 8. a second plate; 9. a drive shaft; 10. a safety shield; 11. a drive motor; 12. a drive pulley; 13. a driven pulley; 14. a belt; 15. a first lead screw; 16. a first clamping sheet; 17. a second clamping piece; 18. a first bearing seat; 19. rotating the handle; 20. a first rotating shaft; 21. turning over the first block; 22. a first clamping strip; 23. a second clamping strip; 24. a first buckle is arranged; 25. a second buckle; 26. a first clamping groove; 27. a second screw rod; 28. a slider; 29. a second bearing seat; 30. a third bearing seat; 31. a feed hand wheel; 32. a chute; 33. a fixing plate; 34. a spring clip; 35. a graduated scale; 36. a carrying board; 37. a start-stop switch; 38. a power line; 39. an operating lever; 40. flipping block, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. A folding and unfolding type cutting machine capable of cutting accurately comprises a bottom plate and a cutting blade and is characterized in that a mounting platform is fixed on the bottom plate, a hinged shaft is rotatably arranged on the mounting platform, two ends of the hinged shaft penetrate out of the mounting platform, a first torsional spring is sleeved at one end of the hinged shaft, one end of the first torsional spring is fixed on the hinged shaft, the other end of the first torsional spring is fixed on the mounting platform, a second torsional spring is sleeved at the other end of the hinged shaft, one end of the second torsional spring is fixed on the hinged shaft, the other end of the second torsional spring is fixed on the mounting platform, a support frame is arranged on the hinged shaft and comprises a first plate and a second plate, the first plate is fixed on the hinged shaft, the second plate is welded on the first plate, a first through hole is formed in the second plate, a transmission shaft penetrates through the first through hole, and a first bearing is fixed, a safety cover is fixed on a vertical surface of the second plate, a cutting blade is positioned in the safety cover, the safety cover is provided with a penetrating hole opposite to the first through hole of the second plate, one end of a transmission shaft penetrates through the penetrating hole and is arranged in the safety cover in a penetrating manner, the transmission shaft is in clearance fit with the safety cover, the penetrating end of the transmission shaft is fixed with the cutting blade, an operating rod is further fixed on the second plate, a cutting groove is further formed in the bottom plate, a driving mechanism capable of driving the transmission shaft to rotate is arranged on the second plate, and a clamping mechanism is arranged on the bottom plate; the clamping device is characterized in that a first turning block is hinged to one vertical face of the bottom plate, a first clamping strip and a second clamping strip are hinged to the other vertical face of the turning block, the first clamping strip and the second clamping strip are located on two sides of the first turning block, free ends of the first clamping strip and the second clamping strip are respectively provided with a first buckle and a second buckle, the other vertical face of the bottom plate is hinged to a second turning block, and a first clamping groove and a second clamping groove which are matched with the first buckle and the second buckle are formed in the second turning block.

2. The folding and unfolding type cutting machine capable of accurately cutting according to claim 1, wherein the driving mechanism comprises a driving motor, the driving motor is fixed on the second plate through bolts and nuts, one end of an output shaft of the driving motor penetrates out of the second plate, a driving belt pulley is fixed at a penetrating end of the output shaft of the driving motor, the other end of the transmission shaft penetrates out of the second plate, a driven belt pulley is fixed at a penetrating end of the transmission shaft, and a belt is sleeved between the driving belt pulley and the driven belt pulley.

3. The folding and unfolding type cutting machine capable of cutting accurately according to claim 1, wherein the clamping mechanism comprises a first screw rod, a first clamping piece and a second clamping piece, anti-slip rubber is arranged on one side face, opposite to the first clamping piece and the second clamping piece, of the first clamping piece, the first clamping piece is fixed on a bottom plate, a second through hole is formed in the second clamping piece, a first nut is fixed on the inner wall of the second through hole, the first nut is connected to the first screw rod in a threaded mode, a first bearing seat is fixed on the upper surface of the bottom plate, a first rotating shaft is arranged on the first bearing seat in a rotating mode, two ends of the first rotating shaft penetrate out of the first bearing seat, one end of the first screw rod is welded to the first rotating shaft, and a rotating.

4. The folding and unfolding type cutting machine capable of cutting accurately according to claim 1, wherein a feeding mechanism is arranged on one side surface of the second turnover block, the first clamping groove and the second clamping groove are arranged on the other side surface opposite to the feeding mechanism, the feeding mechanism comprises a second screw rod and a sliding block, a sliding groove is formed in the second turnover block, the sliding block is arranged in the sliding groove in a sliding manner, a third through hole is formed in the sliding block, a second nut is fixed on the inner wall of the third through hole, the second nut is in threaded connection with the second screw rod, a second bearing seat and a third bearing seat are fixed in the sliding groove, the sliding block is positioned between the second bearing seat and the third bearing seat, a second rotating shaft is rotatably arranged on the second bearing seat, two ends of the second rotating shaft penetrate through the second bearing seat, a feeding hand wheel is fixed at the other end of the second rotating shaft, and a third rotating shaft, and the second screw rod is fixed on the second rotating shaft and the third rotating shaft.

5. The apparatus of claim 4, wherein the feeding mechanism further comprises a fixing plate and a spring clip, the slider has a first vertical plate and a second vertical plate fixed on the upper surface thereof, the spring clip is disposed between the first vertical plate and the second vertical plate, the fixing plate is horizontally fixed on a side surface of the slider, the fixing plate is located below the free end of the spring clip, and the fixing plate is located above the base plate.

6. The folder-type cutter according to claim 1 or 5, wherein a scale is further fixed to the base plate, and a side of the scale on which the graduation marks are formed faces the slider.

7. The cutting machine of claim 1, wherein a first shaft sleeve and a second shaft sleeve are fixed on the mounting platform, two ends of the hinge shaft penetrating out of the mounting platform are respectively located in the first shaft sleeve and the second shaft sleeve, and the first torsion spring and the second torsion spring are respectively located in the first shaft sleeve and the second shaft sleeve.

8. The folding and unfolding cutting machine capable of cutting precisely as claimed in claim 1, wherein a square hole is formed on the first turning block, and a portable plate is fixed on the inner wall of the square hole.

9. The folding and unfolding type cutting machine capable of cutting accurately according to claim 1, wherein a start-stop switch is arranged on the second plate, the start-stop switch is electrically connected with a driving motor, a power line is connected to the start-stop switch, and a plug is arranged at the other end of the power line.