CN210389335U - Plastic product cutting device - Google Patents

Abstract

The utility model relates to the technical field of cutting machines, in particular to a plastic product cutting device, which increases the thickness range of plastic products which can be processed by a cutting machine and reduces the use limitation; the automatic saw blade cutting machine comprises a bracket, a workbench, transverse sliding plates, a cross beam plate, a motor mounting panel, a motor fixing base, a motor, a power supply base, a transmission wheel, a driven rod, a belt, a bearing seat, a first bearing, a saw blade cutting sleeve, a saw blade, from driving wheel and saw blade mounting panel, the workstation lower extreme is installed in the support upper end, install in the workstation side in two sets of transverse sliding plate inboards, the cross beam plate sets up at the workstation upside, and the cross beam plate is installed between two sets of transverse sliding plates, the motor mounting panel sets up in cross beam plate upper end, motor fixing base lower extreme and motor mounting panel upper end are connected, the motor lower extreme is connected with motor fixing base upper end, the transmission wheel suit is on motor output end circumference outside.

Description

Plastic product cutting device

Technical Field

The utility model relates to a technical field of cutting machine especially relates to a plastic products cutting device.

Background

As is well known, a plastic product cutting device is an auxiliary device for cutting plastic products, which is widely used in the field of cutting machines; the prior plastic product cutting device comprises a bracket, a workbench, transverse sliding plates, cross beam plates, a motor mounting plate, a motor fixing seat, a motor, a power supply seat, a starting button, a stopping button, a driving wheel, a driven rod, a belt, a bearing seat, a first bearing, a saw blade clamping sleeve, a saw blade, a driven wheel and a saw blade mounting plate, wherein the lower end of the workbench is arranged at the upper end of the bracket, the inner sides of two groups of transverse sliding plates are arranged at the side surface of the workbench, the cross beam plates are arranged at the upper side of the workbench, the cross beam plates are arranged between the two groups of transverse sliding plates, the motor mounting plate is arranged at the upper end of the cross beam plates, the lower end of the motor fixing seat is connected with the upper end of the motor mounting plate, the lower end of the motor is connected with the upper end of the motor fixing seat, the, the saw blade mounting plate is arranged at the lower end of the cross beam plate, two groups of bearing seats are arranged at the upper end of the saw blade mounting plate, a first bearing is arranged in each bearing seat, a driven rod is rotatably arranged on the inner side of the circumference of the first bearing, a saw blade clamping sleeve is arranged at the output end of the driven rod, the saw blades are clamped in the saw blade clamping sleeves, a driving wheel is linked with a driven wheel through a belt, and the driven wheel is sleeved on the; when the existing plastic product cutting device is used, firstly, a plastic product is placed at the upper end of a workbench, then the plastic product is moved to the lower side of a saw blade, then a start button is pressed to electrify a motor, then the output end of the motor drives a driving wheel to rotate, then the driving wheel drives a lower driven wheel to rotate through a belt, then the driven wheel drives an inner driven rod to rotate in a first bearing, then a saw blade sleeve at the right end of the driven rod and the driven rod rotate simultaneously, then the saw blade is clamped and rotates along with the driven rod through the saw blade sleeve, and then the rotating saw blade is aligned with the lower plastic product to be cut; the existing plastic product cutting device is used for finding that the saw blade is fixed at one point, the height is constant, and plastic products with the thickness not within the height range can not be cut, so that the use limitation is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a thickness range that makes the workable plastic products of cutting machine increases, reduces the plastic products cutting device who uses the limitation.

The utility model relates to a plastic product cutting device, which comprises a bracket, a workbench, transverse sliding plates, a crossbeam plate, a motor mounting plate, a motor fixing seat, a motor, a power supply seat, a start button, a stop button, a driving wheel, a driven rod, a belt, a bearing seat, a first bearing, a saw blade cutting sleeve, a saw blade, a driven wheel and a saw blade mounting plate, wherein the lower end of the workbench is arranged at the upper end of the bracket, the inner sides of two groups of transverse sliding plates are arranged at the side surface of the workbench, the crossbeam plate is arranged at the upper side of the workbench, the crossbeam plate is arranged between the two groups of transverse sliding plates, the motor mounting plate is arranged at the upper end of the crossbeam plate, the lower end of the motor fixing seat is connected with the upper end of the motor mounting plate, the lower end of the motor is connected with the upper end of the motor fixing seat, the power supply, the saw blade mounting plate is arranged at the lower end of the cross beam plate, two groups of bearing seats are arranged at the upper end of the saw blade mounting plate, a first bearing is arranged in each bearing seat, a driven rod is rotatably arranged on the inner side of the circumference of the first bearing, a saw blade clamping sleeve is arranged at the output end of the driven rod, the saw blades are clamped in the saw blade clamping sleeves, a driving wheel is linked with a driven wheel through a belt, and the driven wheel is sleeved on the; still include vertical slide, first hinge, the second hinge, go up the rotor, the pull rod, the rotor down, rocking shaft and fastening bolt, vertical slide sets up in the crossbeam board rear end, first hinge setting is in vertical slide upper end, motor mounting panel passes through first hinge rotatable coupling with vertical slide, the second hinge sets up at vertical slide lower extreme, the saw bit mounting panel passes through second hinge rotatable coupling with vertical slide, go up rotor upper end rotatable mounting at motor mounting panel lower extreme, the circular motion can be around the rocking shaft to the rotor lower extreme down, the rocking shaft sets up in saw bit mounting panel upper end, the pull rod upper end is connected with the rotor lower extreme, the pull rod lower extreme is connected with the rotor upper end down, fastening bolt spiral shell dress is at the rocking shaft right-hand member, and the fastening bolt left end pastes tightly with the rotor right-hand member down.

The utility model discloses a plastic products cutting device, still include the motor mount pad, first motor, the second bearing, threaded rod and thread bush, the motor mount pad is installed in the transverse sliding plate outside, first motor is installed in motor mount pad outer end, the second bearing is installed in crossbeam board rear end, the threaded rod is rotatable to be installed at second bearing circumference inboard, first motor output end is connected with the threaded rod input, the threaded rod circumference outside is provided with the screw thread, the thread bush sets up at longitudinal sliding plate front end middle part, thread bush circumference inboard is provided with interior screw thread, thread bush spiral shell device is in the threaded rod circumference outside.

The utility model discloses a plastic products cutting device still includes longitudinal upper slide rail, pulley holder, top sheave and lower pulley, and two sets of longitudinal upper slide rail setting are in crossbeam board rear end, and four sets of pulley holders of group are installed at longitudinal sliding plate front end to every pulley holder front end of group all is provided with two sets of top sheaves and two sets of lower pulleys, and the top sheave is on longitudinal slide rail with lower pulley slidable mounting.

The utility model relates to a plastic product cutting device, which also comprises a transverse sliding rail, a transverse lower sliding rail, a transverse pulley, a pulley shaft, a second motor, a transmission shaft, a third bearing and a gear, wherein the transverse sliding rail is arranged on the side surface of the workbench, and the lower end of the transverse sliding rail is provided with teeth, the transverse lower sliding rail is arranged on the side surface of the workbench, the transverse lower sliding rail is arranged at the lower end of the transverse sliding rail, the transverse pulley is rotatably sleeved on the outer side of the circumference of the pulley shaft, the pulley shaft is arranged on the inner side of the transverse sliding plate, the transverse pulley is arranged at the upper end of the transverse sliding rail in a rolling manner, the second motor is arranged at the left side of the transverse sliding plate, the third bearing is arranged in the middle of the transverse sliding plate, the left end input end of the transmission shaft is connected with the right end output end of the second motor, and the transmission shaft is rotatably arranged on the inner side of the circumference of the third bearing, the gear is sleeved on the outer side of the circumference of the transmission shaft, and the gear is meshed with the teeth of the upper transverse sliding rail.

The utility model discloses a plastic products cutting device still includes vertically shakes the dish, vertically shakes the dish setting at the threaded rod end.

The utility model discloses a plastic products cutting device still includes and transversely shakes the dish, transversely shakes the dish setting at the transmission shaft end.

The utility model discloses a plastic products cutting device still includes the guard plate, and the guard plate left end is connected with second motor right-hand member, and the guard plate right-hand member is installed in the cross slide left side.

The utility model discloses a plastic products cutting device, all slide rail both ends all are provided with the stopper.

Compared with the prior art, the beneficial effects of the utility model are that: with fastening bolt anticlockwise revolve twist, make fastening bolt left end and lower rotor plate right-hand member separation, later adjust the saw bit mounting panel downwards, then the rotor plate drags through the pull rod and revolves the piece on the saw bit mounting panel, later on revolve the piece and stimulate the motor mounting panel downwards, until pressing close to downside plastic products with the saw bit, adjust from top to bottom the saw bit, make the thickness scope of the workable plastic products of cutting machine increase, reduce and use the limitation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged schematic view of the cutting mechanism;

FIG. 3 is an enlarged schematic view of the longitudinal sliding mechanism;

FIG. 4 is an enlarged schematic view of the lateral sliding mechanism;

FIG. 5 is a rear isometric view;

in the drawings, the reference numbers: 1. a support; 2. a work table; 3. a transverse slide plate; 4. a beam plate; 5. a motor mounting plate; 6. a motor fixing seat; 7. a motor; 8. a power supply base; 9. a start button; 10. a stop button; 11. a driving wheel; 12. a driven lever; 13. a belt; 14. a bearing seat; 15. a first bearing; 16. a saw blade cutting sleeve; 17. a saw blade; 18. a driven wheel; 19. a saw blade mounting plate; 20. a longitudinal slide; 21. a first hinge; 22. a second hinge; 23. upward rotating sheets; 24. a pull rod; 25. a lower rotary plate; 26. a rocking shaft; 27. fastening a bolt; 28. a motor mounting seat; 29. a first motor; 30. a second bearing; 31. a threaded rod; 32. a threaded sleeve; 33. a longitudinal upper slide rail; 34. a pulley seat; 35. an upper pulley; 36. a lower pulley; 37. a transverse sliding rail; 38. a transverse lower slide rail; 39. a transverse pulley; 40. a pulley shaft; 41. a second motor; 42. a drive shaft; 43. a third bearing; 44. a gear; 45. a longitudinal rocking disc; 46. transversely shaking the disc; 47. and (4) a protective plate.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in figures 1 to 5, the utility model relates to a plastic product cutting device, which comprises a bracket 1, a workbench 2, a transverse sliding plate 3, a cross beam plate 4, a motor mounting plate 5, a motor fixing seat 6, a motor 7, a power seat 8, a start button 9, a stop button 10, a driving wheel 11, a driven rod 12, a belt 13, a bearing seat 14, a first bearing 15, a saw blade cutting sleeve 16, a saw blade 17, a driven wheel 18 and a saw blade mounting plate 19, wherein the lower end of the workbench 2 is arranged at the upper end of the bracket 1, the inner sides of the two groups of transverse sliding plates 3 are arranged at the side surface of the workbench 2, the cross beam plate 4 is arranged at the upper side of the workbench 2, the cross beam plate 4 is arranged between the two groups of transverse sliding plates 3, the motor mounting plate 5 is arranged at the upper end of the cross beam plate 4, the lower end of the motor fixing seat 6 is connected with the, a starting button 9 and a stopping button 10 are arranged at the front end of the power supply seat 8, the starting button 9 and the stopping button 10 are both electrically connected with the motor 7, a driving wheel 11 is sleeved on the outer side of the circumference of the output end of the motor 7, a saw blade mounting plate 19 is arranged at the lower end of the cross beam plate 4, two groups of bearing seats 14 are arranged at the upper end of the saw blade mounting plate 19, a first bearing 15 is arranged inside each bearing seat 14, a driven rod 12 is rotatably arranged on the inner side of the circumference of the first bearing 15, a saw blade clamping sleeve 16 is arranged at the output end of the driven rod 12, a saw blade 17 is clamped inside the saw blade clamping sleeve 16, the driving wheel; also comprises a longitudinal sliding plate 20, a first hinge 21, a second hinge 22 and an upper rotary sheet 23, the device comprises a pull rod 24, a lower rotary vane 25, a swing shaft 26 and a fastening bolt 27, wherein a longitudinal sliding plate 20 is arranged at the rear end of a cross beam plate 4, a first hinge 21 is arranged at the upper end of the longitudinal sliding plate 20, a motor mounting plate 5 and the longitudinal sliding plate 20 are rotatably connected through the first hinge 21, a second hinge 22 is arranged at the lower end of the longitudinal sliding plate 20, a saw blade mounting plate 19 and the longitudinal sliding plate 20 are rotatably connected through the second hinge 22, the upper end of an upper rotary vane 23 is rotatably mounted at the lower end of the motor mounting plate 5, the lower end of the lower rotary vane 25 can do circular motion around the swing shaft 26, the swing shaft 26 is arranged at the upper end of the saw blade mounting plate 19, the upper end of the pull rod 24 is connected with the lower end of the upper rotary vane 23, the lower end of the pull rod 24 is connected with the upper end of the lower rotary vane 25; fasten bolt 27 anticlockwise revolve wrong, make fasten bolt 27 left end and the separation of lower rotor 25 right-hand member, later adjust saw bit mounting panel 19 downwards, then rotor 25 drags through pull rod 24 and goes up rotor 23 under the saw bit mounting panel 19 upper end, later go up rotor 23 with motor mounting panel 5 pulling downwards, until pressing close to downside plastic products with saw bit 17, adjust saw bit 17 from top to bottom, the thickness range that makes the workable plastic products of cutting machine increases, reduce and use the limitation.

The utility model discloses a plastic products cutting device, still include motor mount pad 28, first motor 29, second bearing 30, threaded rod 31 and thread bush 32, motor mount pad 28 is installed in the 3 outsides of transverse sliding plate, first motor 29 is installed in motor mount pad 28 outer ends, second bearing 30 is installed in crossbeam board 4 rear end, threaded rod 31 is rotatable to be installed at the inside circumference of second bearing 30, first motor 29 output is connected with threaded rod 31 input, the outside circumference of threaded rod 31 is provided with the screw thread, thread bush 32 sets up in the middle part of longitudinal sliding plate 20 front end, the inside circumference of thread bush 32 is provided with interior screw thread, thread bush 32 spiral shell is adorned outside the circumference of threaded rod 31; when the first motor 29 is started, the first motor 29 drives the threaded rod 31 to rotate on the inner side of the circumference of the second bearing 30, then the outer threads of the threaded rod 31 are matched with the inner threads of the threaded sleeve 32, so that the threaded sleeve 32 moves on the threaded rod 31, and then the threaded sleeve 32 drives the longitudinal sliding plate 20 to move along the direction of the beam plate 4, so that the saw blade 17 can also move transversely along with the longitudinal sliding plate, and the use limitation is reduced.

The utility model discloses a plastic products cutting device, still include the longitudinal upper sliding rail 33, pulley seat 34, upper pulley 35 and lower pulley 36, two sets of longitudinal upper sliding rails 33 set up in the crossbeam board 4 rear end, four sets of pulley seats 34 are installed in the front end of longitudinal sliding plate 20, and each set of pulley seat 34 front end all is provided with two sets of upper pulleys 35 and two sets of lower pulleys 36, upper pulleys 35 and lower pulleys 36 can be installed on longitudinal upper sliding rails 33 in a sliding manner; by arranging the upper pulley 35 and the lower pulley 36, the cutting mechanism is supported to slide on the beam plate 4, and the sliding is smoother, so that the use practicability is improved.

The utility model discloses a plastic products cutting device, still include horizontal slide rail 37, horizontal lower slide rail 38, horizontal pulley 39, pulley shaft 40, second motor 41, transmission shaft 42, third bearing 43 and gear 44, horizontal slide rail 37 sets up in workstation 2 side, and horizontal slide rail 37 lower extreme is provided with the tooth, horizontal lower slide rail 38 sets up in workstation 2 side, and horizontal lower slide rail 38 sets up at horizontal slide rail 37 lower extreme, horizontal pulley 39 is rotatable to be adorned outside pulley shaft 40 circumference, pulley shaft 40 installs at the transverse sliding plate 3 inboard, and horizontal pulley 39 rolls and sets up at horizontal slide rail 37 upper end, second motor 41 sets up on the left side of transverse sliding plate 3, third bearing 43 sets up in transverse sliding plate 3 middle part, transmission shaft 42 left end input is connected with second motor 41 right-hand member output, and transmission shaft 42 is rotatable to be installed at third bearing 43 circumference inboard, the gear 44 is sleeved outside the circumference of the transmission shaft 42, and the gear 44 is meshed with the teeth of the transverse sliding rail 37 at the upper end; the second motor 41 is started, the transmission shaft 42 rotates along with the second motor, then the gear 44 is driven to rotate, then the gear 44 is matched with lower teeth of the transverse sliding rail 37, the transmission shaft 42 moves along the transverse sliding rail 37, and then the transverse sliding plate 3 is driven to slide along the transverse sliding rail 37 through the transverse pulley 39 and the pulley shaft 40, so that the moving range of the cutting machine is enlarged, and the use limitation is reduced.

The utility model discloses a plastic product cutting device, which also comprises a longitudinal rocking disc 45, wherein the longitudinal rocking disc 45 is arranged at the tail end of the threaded rod 31; through setting up vertical rocking disc 45, the manual regulation cutting mechanism of being convenient for moves along crossbeam board 4 directions, improves the convenience of use.

The utility model discloses a plastic product cutting device, which also comprises a transverse rocking disc 46, wherein the transverse rocking disc 46 is arranged at the tail end of the transmission shaft 42; through setting up horizontal rocking disc 46, be convenient for manual regulation cutting mechanism along the horizontal slide rail 37 direction removal of orientation, improve the convenience of use.

The utility model discloses a plastic product cutting device, which also comprises a protection plate 47, wherein the left end of the protection plate 47 is connected with the right end of the second motor 41, and the right end of the protection plate 47 is arranged at the left side of the transverse sliding plate 3; through setting up guard plate 47, be convenient for protect second motor 41 output shaft, prevent that the output shaft from being drawn into other debris, cause mechanical damage, improve stability in use.

The utility model discloses a plastic product cutting device, both ends of all slide rails are provided with limit blocks; through setting up the stopper, prevent cutting mechanism roll-off stroke, improve stability in use.

The utility model discloses a plastic products cutting device, it is at work, at first place the plastic products on the workstation upper end, later remove the plastic products to the saw bit downside, twist fastening bolt anticlockwise soon, make fastening bolt left end and lower rotor plate right-hand member separate, then adjust the saw bit mounting panel downwards, later the lower rotor plate of saw bit mounting panel upper end drags the top rotating plate through the pull rod, then the top rotating plate drags the motor mounting panel downwards, until pressing the saw bit to the lower side plastic products, later start first motor, first motor drives the threaded rod and rotates at the second bearing circumference inboard, then the outer tooth of threaded rod cooperates with the inner tooth of threaded sleeve, make the threaded sleeve move on the threaded rod, later the threaded sleeve drives the longitudinal slide and moves along the crossbeam board direction, make the saw bit also can move thereupon, then start the second motor, make the transmission shaft rotate along with it, later drive gear revolve, then the gear with slide rail tooth cooperation down on horizontal, make the transmission shaft remove along slide rail direction on horizontal, later drive horizontal slide pass through horizontal pulley and pulley shaft along slide rail direction slip on horizontal, then press start button, make the motor circular telegram, later the motor output drives the drive wheel and rotates, then the drive wheel passes through the belt and drives downside follow driving wheel rotation, later drive inboard driven lever from the driving wheel and rotate in primary shaft, then driven lever right-hand member saw bit cutting ferrule rotates with the driven lever simultaneously, later the saw bit presss from both sides the dress through the saw bit cutting ferrule and follows its corotation, then aim at the pivoted saw bit downside plastic products cutting can.

The plastic product cutting device of the utility model has the advantages that the installation mode, the connection mode or the setting mode are common mechanical modes, and the plastic product cutting device can be implemented as long as the beneficial effects can be achieved; the utility model discloses a plastic products cutting device's motor is purchase on the market, and this technical staff only need according to its subsidiary service instruction install and operate can in the industry.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A plastic product cutting device comprises a bracket (1), a workbench (2), transverse sliding plates (3), a transverse beam plate (4), a motor mounting plate (5), a motor fixing seat (6), a motor (7), a power supply seat (8), a starting button (9), a stopping button (10), a driving wheel (11), a driven rod (12), a belt (13), a bearing seat (14), a first bearing (15), a saw blade cutting sleeve (16), a saw blade (17), a driven wheel (18) and a saw blade mounting plate (19), wherein the lower end of the workbench (2) is arranged at the upper end of the bracket (1), the inner sides of two groups of transverse sliding plates (3) are arranged at the side surface of the workbench (2), the transverse beam plate (4) is arranged at the upper side of the workbench (2), the transverse beam plate (4) is arranged between the two groups of transverse sliding plates (3), the motor mounting plate (5) is arranged at the upper end of, the lower end of a motor fixing seat (6) is connected with the upper end of a motor mounting plate (5), the lower end of a motor (7) is connected with the upper end of the motor fixing seat (6), the upper end of the motor (7) is provided with a power supply seat (8), the front end of the power supply seat (8) is provided with a start button (9) and a stop button (10), the start button (9) and the stop button (10) are both electrically connected with the motor (7), a driving wheel (11) is sleeved on the outer side of the circumference of the output end of the motor (7), a saw blade mounting plate (19) is arranged at the lower end of a beam plate (4), the upper end of the saw blade mounting plate (19) is provided with two groups of bearing seats (14), a first bearing (15) is arranged inside the bearing seats (14), a driven rod (12) is rotatably arranged on the inner side of the circumference of the first bearing (15), the driving wheel (11) is linked with the driven wheel (18) through a belt (13), and the driven wheel (18) is sleeved on the outer side of the circumference of the driven rod (12); the device is characterized by further comprising a longitudinal sliding plate (20), a first hinge (21), a second hinge (22), an upper rotary sheet (23), a pull rod (24), a lower rotary sheet (25), a rocking shaft (26) and a fastening bolt (27), wherein the longitudinal sliding plate (20) is arranged at the rear end of the cross beam plate (4), the first hinge (21) is arranged at the upper end of the longitudinal sliding plate (20), the motor mounting plate (5) and the longitudinal sliding plate (20) are rotatably connected through the first hinge (21), the second hinge (22) is arranged at the lower end of the longitudinal sliding plate (20), the saw blade mounting plate (19) and the longitudinal sliding plate (20) are rotatably connected through the second hinge (22), the upper end of the upper rotary sheet (23) is rotatably arranged at the lower end of the motor mounting plate (5), the lower end of the lower rotary sheet (25) can do circular motion around the rocking shaft (26), the rocking shaft (26) is arranged at the upper end of the saw blade mounting plate (19), the upper end of the pull rod (24) is connected, the lower end of the pull rod (24) is connected with the upper end of the lower rotary sheet (25), the fastening bolt (27) is screwed at the right end of the rocking shaft (26), and the left end of the fastening bolt (27) is tightly attached to the right end of the lower rotary sheet (25).

2. The plastic product cutting device as claimed in claim 1, further comprising a motor mounting seat (28), a first motor (29), a second bearing (30), a threaded rod (31) and a threaded sleeve (32), wherein the motor mounting seat (28) is mounted on the outer side of the transverse sliding plate (3), the first motor (29) is mounted on the outer end of the motor mounting seat (28), the second bearing (30) is mounted on the rear end of the beam plate (4), the threaded rod (31) is rotatably mounted on the inner side of the circumference of the second bearing (30), the output end of the first motor (29) is connected with the input end of the threaded rod (31), the outer side of the circumference of the threaded rod (31) is provided with threads, the threaded sleeve (32) is disposed in the middle of the front end of the longitudinal sliding plate (20), the inner side of the circumference of the threaded sleeve (32) is provided with inner threads, and the threaded sleeve (32) is threadedly mounted on the.

3. A plastic product cutting device according to claim 2, further comprising longitudinal upper slide rails (33), pulley seats (34), upper pulleys (35) and lower pulleys (36), wherein two sets of longitudinal upper slide rails (33) are provided at the rear end of the beam plate (4), four sets of pulley seats (34) are provided at the front end of the longitudinal slide plate (20), and each set of pulley seats (34) is provided at the front end thereof with two sets of upper pulleys (35) and two sets of lower pulleys (36), and the upper pulleys (35) and the lower pulleys (36) are slidably mounted on the longitudinal upper slide rails (33).

4. A plastic product cutting device according to claim 3, further comprising a transverse slide rail (37), a transverse lower slide rail (38), a transverse pulley (39), a pulley shaft (40), a second motor (41), a transmission shaft (42), a third bearing (43) and a gear (44), wherein the transverse slide rail (37) is disposed at the side of the worktable (2), and the lower end of the transverse slide rail (37) is provided with teeth, the transverse lower slide rail (38) is disposed at the side of the worktable (2), and the transverse lower slide rail (38) is disposed at the lower end of the transverse slide rail (37), the transverse pulley (39) is rotatably fitted around the outer side of the circumference of the pulley shaft (40), the pulley shaft (40) is mounted inside the transverse slide plate (3), and the transverse pulley (39) is rollably disposed at the upper end of the transverse slide rail (37), and the second motor (41) is disposed at the left side of the transverse slide plate (3), third bearing (43) set up in horizontal slide (3) middle part, and transmission shaft (42) left end input is connected with second motor (41) right end output to transmission shaft (42) rotatable mounting is inboard in third bearing (43) circumference, and gear (44) suit is outside transmission shaft (42) circumference, and gear (44) and upper end horizontal slide rail (37) tooth mesh mutually.

5. A plastic cutting device as claimed in claim 4, characterized in that it further comprises a longitudinal rocking disc (45), the longitudinal rocking disc (45) being arranged at the end of the threaded rod (31).

6. A plastic product cutting device as claimed in claim 5, characterized in that it further comprises a traversing rocking disk (46), the traversing rocking disk (46) being arranged at the end of the drive shaft (42).

7. A cutting device for plastic products, as in claim 6, characterized by further comprising a shielding plate (47), the left end of the shielding plate (47) being connected to the right end of the second motor (41), the right end of the shielding plate (47) being mounted on the left side of the cross slide (3).

8. A plastic product cutting device as claimed in claim 7, wherein the slide rails are provided at both ends thereof with stoppers.

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