CN214110564U - Fixed-length cutting device for plastic strips - Google Patents

Abstract

The utility model belongs to the technical field of the plastic strip processing technique and specifically relates to a fixed length cutting device of plastic strip is related to. Including workstation, conveying component, fixed subassembly, slip subassembly, lifting unit, cutting unit and clearance subassembly, the workstation is the level and places and the top of workstation is equipped with the sliding tray, conveying component set up at the top of workstation and with workstation fixed connection, fixed subassembly fixed connection just is located conveying component's rear at the top of workstation, slip subassembly sets up on the workstation and through sliding tray and workstation sliding fit, lifting unit set up on slip subassembly and with slip subassembly sliding fit, cutting unit fixed connection is on lifting unit, the clearance subassembly sets up in the below of workstation and the clearance end of clearance subassembly runs through the workstation and extends to fixed subassembly's top. The utility model discloses can realize the effect of fixed length cutting plastic strip.

Description

Fixed-length cutting device for plastic strips

Technical Field

The utility model belongs to the technical field of the plastic strip processing technique and specifically relates to a fixed length cutting device of plastic strip is related to.

Background

The plastic strip is a material that elasticity is high, physical mechanical properties is good, wide application in various fields, the plastic strip is in production and processing process, need carry out cutting operation to the plastic strip, current cutting process is according to the demand in advance mark on the plastic strip, then it is fixed through the manual work, the re-cutting, but the plastic strip rocks easily during actual operation, make the surface of plastic strip drawn the flower, the cut opening is irregular, prior art provides one kind simultaneously and utilizes the cutting after the mounting fixture fixes the plastic strip, but this kind of operating means, can lead to forming the indentation on plastic strip surface because of the pressure of anchor clamps, and most mounting fixture can only fix a type of plastic strip, need adopt multiple anchor clamps to the plastic strip of different shapes, the efficiency of cutting has been reduced, and manufacturing cost is high.

For example, the patent publication No. CN208681671U relates to a cutting device capable of precisely cutting plastic, which relates to the field of plastic processing, and comprises a workbench, wherein the top of the workbench is connected with a supporting plate, the top of the supporting plate is connected with a transverse plate, one end of the bottom of the transverse plate is connected with a vertical plate, a control box is arranged on the workbench, a motor and a cutting device are fixed on the transverse plate, a groove is arranged under the cutting device and is an inwards concave structure on the workbench, an output shaft of the motor is connected with a gear through a spline, the front side and the rear side of the gear are respectively engaged with a rack, the left end and the right end of the rack are respectively provided with a limiting block, the gear is driven by the motor to rotate, the racks on the front side and the rear side of the gear move oppositely, a moving block connected with the racks also moves oppositely, a pressure sensor on the moving block receives the pressure of the moving block and the plastic, so that a controller controls the motor to stop rotating, and a spring is stretched, the connecting block card can avoid the plastic to rock at the plastic upper surface, and the incision is level and smooth, and can adapt to multiple type plastic, improves the efficiency of cutting.

However, the above-mentioned devices also have the following problems in use: firstly, the method comprises the following steps: can not carry out fixed work, the second to the plastic strip: the plastic strips can not be cut in different lengths, and thirdly, waste residues can not be cleaned after the cutting operation is finished.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixed length cutting device of plastic strip to can not carry out the work of fixing to the plastic strip among the solution prior art, can not carry out the cutting of different length to the plastic strip, can not carry out the technical problem of clearance to the waste residue after the cutting operation is accomplished.

The utility model provides a fixed length cutting device of plastic strip, including workstation, conveying component, fixed subassembly, sliding component, lifting unit, cutting unit and clearance subassembly, the workstation is the level and places and the top of workstation is equipped with the sliding tray, conveying component set up at the top of workstation and with workstation fixed connection, fixed subassembly fixed connection just is located conveying component's rear at the top of workstation, sliding component sets up on the workstation and through sliding tray and workstation sliding fit, lifting unit set up on sliding component and with sliding component sliding fit, cutting unit fixed connection is on lifting unit, the clearance subassembly sets up in the below of workstation and the clearance end of clearance subassembly runs through the top that the workstation extended to fixed subassembly.

Further, the conveying assembly comprises a fixing plate, a conveying motor, a belt pulley, a first rotating shaft, a driving wheel, a second driving shaft, a belt, a first roller and a second roller, the fixing plate is vertically arranged at the top of the workbench, the conveying motor is arranged on the workbench and fixedly connected with the workbench, the belt pulley is arranged on a main shaft of the conveying motor and is in transmission connection with the conveying motor, the first rotating shaft is arranged on the fixing plate and is in rotating fit with the fixing plate, the driving wheel is arranged at one end of the first rotating shaft and is fixedly connected with the first rotating shaft, one end of the second driving shaft is arranged on the fixing plate and is in rotating fit with the fixing plate, the belt is sleeved on the belt pulley and the driving wheel, the first roller is arranged at the other end of the first rotating shaft and is fixedly connected with the first rotating shaft, the second roller is arranged at the other end of the second rotating shaft and is fixedly connected with the second rotating shaft, and a rotating fluted disc is arranged on the first roller, and a tooth groove meshed with the rotating fluted disc is arranged on the second roller.

Further, fixed subassembly includes fixing base, limiting plate, two cylinder layer boards, two cylinders and two clamping jaw subassemblies, fixing base fixed connection is on the workstation, the horizontal fixed connection of limiting plate is at the top of fixing base, the symmetry is equipped with two recesses, two on the limiting plate cylinder layer board symmetry set up the side of fixing base and with fixing base fixed connection, two the tail end fixed connection of cylinder is on two cylinder layer boards, every clamping jaw subassembly all set up at the flexible end of cylinder and with cylinder fixed connection.

Further, every clamping jaw subassembly all includes sliding block, turning block, two rotor plates, two dwangs and two clamps, the sliding block set up at the flexible end of cylinder and with cylinder sliding fit, turning block fixed connection serve at the flexible of cylinder, two the rotor plate symmetry sets up the one end and the sliding block fixed connection of side and two rotor plates at the sliding block, two the one end of dwang is rotated and is connected at the both ends of turning block, two the bottom symmetry of clamp sets up at the other end of two rotor plates and with two rotor plate normal running fit, two the other end symmetry of dwang sets up on two clamps and is connected with two clamp rotations.

Further, the slip subassembly includes carriage, rack, gear and sliding motor, the carriage sets up on the workstation and through sliding tray and workstation sliding fit, be equipped with the slide rail of two symmetries on the carriage, the rack is the level and places on the workstation and with workstation fixed connection, sliding motor sets up on the carriage and with carriage fixed connection, the gear sets up on sliding motor's main shaft and is connected with the sliding motor transmission, rack and gear intermeshing.

Further, lifting unit includes motor fixed plate, elevator motor, lifter plate and threaded rod, motor fixed plate fixed connection is at the top of carriage, elevator motor fixed connection is on the motor fixed plate, the threaded rod set up on elevator motor's main shaft and with elevator motor's main shaft fixed connection, the bottom and the carriage of threaded rod rotate to be connected, lifter plate and threaded rod threaded connection, the lifter plate passes through two slide rails on the carriage and carriage sliding fit.

Further, the cutting assembly comprises a cutting motor and a cutting piece, the cutting motor is arranged on the lifting plate and fixedly connected with the lifting plate, and the cutting piece is arranged on a main shaft of the cutting motor and is in transmission connection with the cutting motor.

Furthermore, the cleaning assembly comprises a dust collector and a dust collection pipe, the dust collector is horizontally arranged below the workbench, and the dust collection pipe is fixedly connected to the dust collector.

Further, be equipped with down the work or material rest on the workstation, down the work or material rest is the slope and sets up on the workstation.

Compared with the prior art, the beneficial effects of the utility model reside in that:

one of them, when needs carry out the fixed work to the plastic strip, two cylinders promote two clamping jaw assembly and carry out the fixed work in two recesses on the limiting plate, and when the flexible end rebound of cylinder, the sliding block upwards slides and drives two dwangs upwards to rotate on the turning block, drives two clamps and upwards rotates on two turning plates and two dwangs, to the fixed work of plastic strip to prevent to take place the skew at the in-process plastic strip of cutting.

And secondly, the sliding motor works to drive the gear to rotate on the rack meshed with the gear, so that the sliding frame is driven to move on the workbench through the sliding groove, and the cutting assembly is driven to cut the plastic strips in different lengths.

Thirdly, after the cutting operation is completed, the waste residues generated by the cutting operation need to be cleaned, and the dust collector sucks the waste residues into the dust collector through the dust collection pipe to realize the cleaning operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

fig. 2 is a side view of the three-dimensional structure of the present invention;

fig. 3 is a schematic view of a conveying assembly of the present invention;

fig. 4 is a schematic view of the fixing assembly of the present invention;

fig. 5 is a schematic view of a jaw assembly of the present invention;

fig. 6 is a schematic view of the sliding assembly and the lifting assembly of the present invention;

fig. 7 is a schematic view of a cutting assembly of the present invention;

FIG. 8 is a schematic view of a cleaning assembly of the present invention;

reference numerals:

the cutting machine comprises a workbench 1, a sliding groove 11, a blanking frame 12, a conveying assembly 2, a fixing plate 21, a conveying motor 22, a belt pulley 23, a first rotating shaft 24, a driving wheel 25, a second rotating shaft 26, a belt 27, a first roller 28, a rotating fluted disc 281, a second roller 29, a fluted groove 291, a fixing assembly 3, a fixing seat 31, a limiting plate 32, a groove 321, a cylinder supporting plate 33, a cylinder 34, a clamping jaw assembly 35, a sliding block 351, a rotating block 352, a rotating plate 353, a rotating rod 354, a clamp 355, a sliding assembly 4, a sliding frame 41, a sliding rail 42, a rack 43, a gear 44, a sliding motor 45, a lifting assembly 5, a motor fixing plate 51, a lifting motor 52, a lifting plate 53, a threaded rod 54, a cutting assembly 6, a cutting motor 61, a cutting piece 62, a cleaning assembly 7, a dust collector 71 and a dust suction pipe 72.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.

The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, an embodiment of the present invention provides a fixed-length cutting device for plastic strips, which includes a worktable 1, a conveying assembly 2, a fixing assembly 3, a sliding assembly 4, a lifting assembly 5, a cutting assembly 6, and a cleaning assembly 7, the workbench 1 is horizontally arranged, the top of the workbench 1 is provided with a sliding groove 11, the conveying assembly 2 is arranged at the top of the workbench 1 and is fixedly connected with the workbench 1, the fixed component 3 is fixedly connected to the top of the workbench 1 and positioned behind the conveying component 2, the sliding component 4 is arranged on the workbench 1 and is in sliding fit with the workbench 1 through a sliding groove 11, the lifting component 5 is arranged on the sliding component 4 and is in sliding fit with the sliding component 4, the cutting component 6 is fixedly connected on the lifting component 5, the cleaning assembly 7 is arranged below the workbench 1, and the cleaning end of the cleaning assembly 7 penetrates through the workbench 1 and extends to the upper part of the fixing assembly 3.

Specifically, the conveying assembly 2 includes a fixing plate 21, a conveying motor 22, a belt pulley 23, a first rotating shaft 24, a transmission wheel 25, a second transmission shaft 26, a belt 27, a first roller 28 and a second roller 29, the fixing plate 21 is vertically disposed at the top of the workbench 1, the conveying motor 22 is disposed on the workbench 1 and is fixedly connected with the workbench 1, the belt pulley 23 is disposed on a main shaft of the conveying motor 22 and is in transmission connection with the conveying motor 22, the first rotating shaft 24 is disposed on the fixing plate 21 and is in rotation fit with the fixing plate 21, the transmission wheel 25 is disposed at one end of the first rotating shaft 24 and is fixedly connected with the first rotating shaft 24, one end of the second transmission shaft 26 is disposed on the fixing plate 21 and is in rotation fit with the fixing plate 21, the belt 27 is sleeved on the belt pulley 23 and the transmission wheel 25, the first roller 28 is disposed at the other end of the first rotating shaft 24 and is fixedly connected with the first rotating shaft 24, the second roller 29 is arranged at the other end of the second rotating shaft 26 and is fixedly connected with the second rotating shaft 26, the first roller 28 is provided with a rotating fluted disc 281, and the second roller 29 is provided with a tooth groove 291 meshed with the rotating fluted disc 281; when needing to cutting device 6 transport plastic strip, put the one end of plastic strip between first gyro wheel 28 and second gyro wheel 29, conveying motor 22 begins work and drives belt pulley 23 and rotate, thereby belt pulley 23 rotates and drives belt 27 and rotate and drive wheel 25 and rotate on fixed plate 21 through first axis of rotation 24, the rotation of first axis of rotation 24 drives first gyro wheel 28 and rotates, second gear 44 with first gyro wheel 28 intermeshing passes through second axis of rotation 26 and rotates on fixed plate 21 this moment, make the plastic strip remove to the direction of fixed subassembly 3, realize the automatic feeding operation to the plastic strip.

Specifically, the fixing assembly 3 includes a fixing seat 31, a limiting plate 32, two cylinder supporting plates 33, two cylinders 34 and two clamping jaw assemblies 35, the fixing seat 31 is fixedly connected to the workbench 1, the limiting plate 32 is horizontally and fixedly connected to the top of the fixing seat 31, the limiting plate 32 is symmetrically provided with two grooves 321, the two cylinder supporting plates 33 are symmetrically arranged beside the fixing seat 31 and fixedly connected with the fixing seat 31, the tail ends of the two cylinders 34 are fixedly connected to the two cylinder supporting plates 33, and each clamping jaw assembly 35 is arranged at the telescopic end of the cylinder 34 and fixedly connected with the cylinder 34; when the plastic strip needs to be fixed, the two air cylinders 34 push the two clamping jaw assemblies 35 to fix the plastic strip in the two grooves 321 of the limiting plate 32.

Specifically, each of the jaw assemblies 35 includes a sliding block 351, a rotating block 352, two rotating plates 353, two rotating rods 354 and two clamps 355, the sliding block 351 is disposed on the telescopic end of the cylinder 34 and is in sliding fit with the cylinder 34, the rotating block 352 is fixedly connected to the telescopic end of the cylinder 34, the two rotating plates 353 are symmetrically disposed beside the sliding block 351 and one ends of the two rotating plates 353 are fixedly connected with the sliding block 351, one ends of the two rotating rods 354 are rotatably connected to two ends of the rotating block 352, the bottom ends of the two clamps 355 are symmetrically disposed at the other ends of the two rotating plates 353 and are in rotating fit with the two rotating plates 353, and the other ends of the two rotating rods 354 are symmetrically disposed on the two clamps 355 and are rotatably connected with the two clamps 355; when the telescopic end of the cylinder 34 moves upwards, the sliding block 351 slides upwards to drive the two rotating rods 354 to rotate upwards on the rotating block 352, and the two clamps 355 are driven to rotate upwards on the two rotating plates 353 and the two rotating rods 354 to fix the plastic strip, so that the plastic strip is prevented from being deviated in the cutting process.

Specifically, the sliding assembly 4 includes a sliding frame 41, a rack 43, a gear 44 and a sliding motor 45, the sliding frame 41 is disposed on the workbench 1 and is in sliding fit with the workbench 1 through the sliding groove 11, two symmetrical sliding rails 42 are disposed on the sliding frame 41, the rack 43 is horizontally disposed on the workbench 1 and is fixedly connected with the workbench 1, the sliding motor 45 is disposed on the sliding frame 41 and is fixedly connected with the sliding frame 41, the gear 44 is disposed on a main shaft of the sliding motor 45 and is in transmission connection with the sliding motor 45, and the rack 43 and the gear 44 are engaged with each other; when cutting operation is performed, the sliding motor 45 works to drive the gear 44 to rotate on the rack 43 engaged with the gear, so as to drive the sliding rack 41 to move on the workbench 1 through the sliding groove 11, and drive the cutting assembly 6 to perform cutting of different lengths on the plastic strip.

Specifically, the lifting assembly 5 comprises a motor fixing plate 51, a lifting motor 52, a lifting plate 53 and a threaded rod 54, wherein the motor fixing plate 51 is fixedly connected to the top of the sliding frame 41, the lifting motor 52 is fixedly connected to the motor fixing plate 51, the threaded rod 54 is arranged on a main shaft of the lifting motor 52 and is fixedly connected with the main shaft of the lifting motor 52, the bottom of the threaded rod 54 is rotatably connected with the sliding frame 41, the lifting plate 53 is in threaded connection with the threaded rod 54, and the lifting plate 53 is in sliding fit with the sliding frame 41 through two sliding rails 42 on the sliding frame 41; when the lifting motor 52 works, the threaded rod 54 is driven to rotate on the sliding frame 41, so that the lifting plate 53 is driven to slide on the sliding frame 41 through the two sliding rails 42, and the cutting assembly 6 is driven to realize multidirectional cutting work.

Specifically, the cutting assembly 6 comprises a cutting motor 61 and a cutting blade 62, the cutting motor 61 is arranged on the lifting plate 53 and is fixedly connected with the lifting plate 53, and the cutting blade 62 is arranged on a main shaft of the cutting motor 61 and is in transmission connection with the cutting motor 61; when cutting operation is performed, the cutting motor 61 works to drive the cutting sheet 62 to rotate, so that the plastic strip is cut.

Specifically, the cleaning assembly 7 comprises a dust collector 71 and a dust collection pipe 72, the dust collector 71 is horizontally arranged below the workbench 1, and the dust collection pipe 72 is fixedly connected to the dust collector 71; after the cutting operation is completed, the waste residues generated by the cutting operation need to be cleaned, and the dust collector 71 works to suck the waste residues into the dust collector 71 through the dust collection pipe 72 so as to realize the cleaning operation.

Specifically, a blanking frame 12 is arranged on the workbench 1, and the blanking frame 12 is obliquely arranged on the workbench 1; after the cutting operation is completed, the cut plastic strips slide down through the blanking frame 12, and the automatic blanking effect is realized.

The working principle is as follows: when the plastic strip needs to be conveyed to the cutting device 6, one end of the plastic strip is placed between the first roller 28 and the second roller 29, the conveying motor 22 starts to work to drive the belt pulley 23 to rotate, the belt pulley 23 rotates to drive the belt 27 to rotate so as to drive the transmission wheel 25 to rotate on the fixed plate 21 through the first rotating shaft 24, the first rotating shaft 24 rotates to drive the first roller 28 to rotate, at this time, the second gear 44 meshed with the first roller 28 rotates on the fixed plate 21 through the second rotating shaft 26, so that the plastic strip moves towards the direction of the fixed assembly 3, automatic feeding operation of the plastic strip is realized, when the plastic strip needs to be fixed, the two air cylinders 34 push the two clamping jaw assemblies 35 to perform fixing operation in the two grooves 321 on the limiting plate 32, when the telescopic ends of the air cylinders 34 move upwards, the sliding blocks 351 slide upwards to drive the two sliding blocks 354 to rotate upwards on the rotating blocks 352, the two clamps 355 are driven to upwards rotate on the two rotating plates 353 and the two rotating rods 354, the plastic strips are fixed, so that the plastic strips are prevented from being deviated in the cutting process, the sliding motor 45 works to drive the gear 44 to rotate on the rack 43 engaged with the gear, so that the sliding frame 41 is driven to move on the workbench 1 through the sliding groove 11, the cutting assembly 6 is driven to cut the plastic strips with different lengths, the threaded rod 54 is driven to rotate on the sliding frame 41 when the lifting motor 52 works, so that the lifting plate 53 is driven to slide on the sliding frame 41 through the two sliding rails 42, the cutting assembly 6 is driven to realize multidirectional cutting work, the cutting motor 61 works to drive the cutting sheet 62 to rotate, so that the cutting work on the plastic strips is realized, after the cutting work is finished, the waste residues generated by the cutting work need to be cleaned, the dust collector 71 works to suck the waste residues into the dust collector 71 through the dust collection pipe 72, realize the clearance operation, after the cutting operation was accomplished, the plastic strip that the cutting is good passed through blanking frame 12 landing, has realized the effect of automatic unloading.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (9)

1. The utility model provides a fixed length cutting device of plastic strip which characterized in that: comprises a workbench (1), a conveying component (2), a fixing component (3), a sliding component (4), a lifting component (5), a cutting component (6) and a cleaning component (7), wherein the workbench (1) is horizontally placed, a sliding groove (11) is formed in the top of the workbench (1), the conveying component (2) is arranged at the top of the workbench (1) and is fixedly connected with the workbench (1), the fixing component (3) is fixedly connected to the top of the workbench (1) and is positioned behind the conveying component (2), the sliding component (4) is arranged on the workbench (1) and is in sliding fit with the workbench (1) through the sliding groove (11), the lifting component (5) is arranged on the sliding component (4) and is in sliding fit with the sliding component (4), the cutting component (6) is fixedly connected to the lifting component (5), the cleaning assembly (7) is arranged below the workbench (1) and the cleaning end of the cleaning assembly (7) penetrates through the workbench (1) and extends to the upper part of the fixing assembly (3).

2. The device for cutting plastic strip according to claim 1, wherein: the conveying assembly (2) comprises a fixing plate (21), a conveying motor (22), a belt pulley (23), a first rotating shaft (24), a driving wheel (25), a second rotating shaft (26), a belt (27), a first roller (28) and a second roller (29), wherein the fixing plate (21) is vertically arranged at the top of the workbench (1), the conveying motor (22) is arranged on the workbench (1) and fixedly connected with the workbench (1), the belt pulley (23) is arranged on a main shaft of the conveying motor (22) and is in transmission connection with the conveying motor (22), the first rotating shaft (24) is arranged on the fixing plate (21) and is in running fit with the fixing plate (21), the driving wheel (25) is arranged at one end of the first rotating shaft (24) and is fixedly connected with the first rotating shaft (24), one end of the second rotating shaft (26) is arranged on the fixing plate (21) and is in running fit with the fixing plate (21), belt (27) cover is established on belt pulley (23) and drive wheel (25), first gyro wheel (28) set up the other end at first axis of rotation (24) and with first axis of rotation (24) fixed connection, second gyro wheel (29) set up the other end at second axis of rotation (26) and with second axis of rotation (26) fixed connection, be equipped with rotation fluted disc (281) on first gyro wheel (28), be equipped with on second gyro wheel (29) with tooth's socket (291) of rotation fluted disc (281) meshing.

3. The device for cutting plastic strip according to claim 1, wherein: fixed subassembly (3) include fixing base (31), limiting plate (32), two cylinder layer boards (33), two cylinders (34) and two clamping jaw assemblies (35), fixing base (31) fixed connection is on workstation (1), the top of limiting plate (32) horizontal fixed connection at fixing base (31), the symmetry is equipped with two recess (321) on limiting plate (32), two cylinder layer board (33) symmetry set up at the side of fixing base (31) and with fixing base (31) fixed connection, two the tail end fixed connection of cylinder (34) is on two cylinder layer boards (33), every clamping jaw assembly (35) all set up in the flexible end of cylinder (34) and with cylinder (34) fixed connection.

4. The device for cutting plastic strip according to claim 3, wherein: each clamping jaw assembly (35) comprises a sliding block (351), a rotating block (352), two rotating plates (353), two rotating rods (354) and two clamps (355), the sliding block (351) is arranged on the telescopic end of the cylinder (34) and is in sliding fit with the cylinder (34), the rotating block (352) is fixedly connected to the telescopic end of the cylinder (34), the rotating plates (353) are symmetrically arranged at the side of the sliding block (351) and one ends of the two rotating plates (353) are fixedly connected with the sliding block (351), the rotating rods (354) are rotatably connected to the two ends of the rotating block (352), the two ends of the clamp (355) are symmetrically arranged at the other ends of the two rotating plates (353) and are in rotating fit with the two rotating plates (353), and the other ends of the rotating rods (354) are symmetrically arranged on the two clamp (355) and are rotatably connected with the two clamp (355).

5. The device for cutting plastic strip according to claim 1, wherein: sliding assembly (4) include carriage (41), rack (43), gear (44) and sliding motor (45), carriage (41) set up on workstation (1) and through sliding tray (11) and workstation (1) sliding fit, be equipped with slide rail (42) of two symmetries on carriage (41), rack (43) are the level and place on workstation (1) and with workstation (1) fixed connection, sliding motor (45) set up on carriage (41) and with carriage (41) fixed connection, gear (44) set up on the main shaft of sliding motor (45) and are connected with sliding motor (45) transmission, rack (43) and gear (44) intermeshing.

6. The fixed-length cutting device for plastic strips according to claim 5, wherein the lifting assembly (5) comprises a motor fixing plate (51), a lifting motor (52), a lifting plate (53) and a threaded rod (54), the motor fixing plate (51) is fixedly connected to the top of the sliding frame (41), the lifting motor (52) is fixedly connected to the motor fixing plate (51), the threaded rod (54) is arranged on a main shaft of the lifting motor (52) and fixedly connected to the main shaft of the lifting motor (52), the bottom of the threaded rod (54) is rotatably connected to the sliding frame (41), the lifting plate (53) is in threaded connection with the threaded rod (54), and the lifting plate (53) is in sliding fit with the sliding frame (41) through two sliding rails (42) on the sliding frame (41).

7. The fixed-length cutting device for plastic strips according to claim 6, wherein the cutting assembly (6) comprises a cutting motor (61) and a cutting blade (62), the cutting motor (61) is arranged on the lifting plate (53) and fixedly connected with the lifting plate (53), and the cutting blade (62) is arranged on a main shaft of the cutting motor (61) and in transmission connection with the cutting motor (61).

8. The fixed-length cutting device for plastic strips according to claim 1, wherein the cleaning assembly (7) comprises a dust collector (71) and a dust collection pipe (72), the dust collector (71) is horizontally arranged below the workbench (1), and the dust collection pipe (72) is fixedly connected to the dust collector (71).

9. The device for cutting plastic strips according to claim 1, wherein a blanking frame (12) is disposed on the worktable (1), and the blanking frame (12) is disposed on the worktable (1) in an inclined manner.

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