Color master batch cutting device

Abstract

The invention relates to a color master batch cutting device, and relates to the technical field of color master batch production and processing.The color master batch cutting device comprises a color master strip driving assembly, a sliding frame, a cutting assembly, a transmission assembly and a reset assembly which are arranged on a working frame, and the color master strip driving assembly is used for driving color master strips to move on the working frame so that continuous feeding can be achieved; the cutting assembly is arranged on the sliding frame, the color master strip driving assembly is connected with the sliding frame through the transmission assembly, so that the cutting assembly and a color master strip can slide in the same direction at the same speed, the cutting assembly is used for cutting a section of color master strip into color master batches, and the reset assembly is connected with the sliding frame. And the cutting assembly can be driven to reset. The color master strip cutting device has the advantages that the color master strips do not need to stop moving in the cutting process, continuous feeding and continuous cutting of the color master strips are achieved, and therefore the production efficiency of color master batches is improved.

Description

Technical Field

[0001] The present application relates to the technical field of masterbatch production and processing, and in particular to a masterbatch cutting device. Background Art

[0002] In the production process of masterbatch, the mixed pigment and resin need to be melted and mixed through an extruder, and then extruded into strips through a die. Then, these strips will be sent to a cooling device for cooling, and then enter a cutting machine for cutting to form granular masterbatch.

[0003] The existing cutting method of masterbatch is that the driving roller drives the masterbatch to slide on the workbench. When the masterbatch moves below the cutting knife, the driving roller stops driving the masterbatch, and the hydraulic cylinder drives the rows of cutting knives to cut the masterbatch to form masterbatch. When the cutting knife is cutting the masterbatch, the masterbatch stops moving. This process takes a certain amount of time, which reduces the production efficiency of the masterbatch. Summary of the invention

[0004] In order to improve the problem that the masterbatch production efficiency is reduced due to the stopping of the masterbatch strip during the cutting process, the present application provides a masterbatch cutting device.

[0005] The masterbatch cutting device provided in this application adopts the following technical solution: A masterbatch cutting device comprises a masterbatch driving assembly, a sliding frame, a cutting assembly, a transmission assembly and a reset assembly arranged on a working frame, wherein the masterbatch driving assembly is used to drive the masterbatch to move on the working frame so as to enable continuous feeding, the cutting assembly is arranged on the sliding frame, the masterbatch driving assembly is connected to the sliding frame through the transmission assembly so that the cutting assembly can slide in the same direction and at the same speed as the masterbatch, the cutting assembly is used to cut a section of the masterbatch into masterbatches, and the reset assembly is connected to the sliding frame so as to drive the cutting assembly to reset.

[0006] By adopting the above technical scheme, when cutting the masterbatch, the masterbatch driving component slides the masterbatch on the working frame, and at the same time, the masterbatch driving component drives the sliding frame to slide through the transmission component, and its sliding speed is the same as the moving speed of the masterbatch, so that the cutting component and the masterbatch remain stationary, and then the cutting component cuts a section of the masterbatch to form masterbatch, and then the reset component drives the cutting component to reset, and when the subsequent section of the masterbatch moves to the cutting position, the transmission component drives the sliding frame to slide again, and again keeps the cutting component and the masterbatch stationary, and the cutting component cuts the section of the masterbatch to form masterbatch. In the cutting process, the masterbatch does not need to stop moving, and the continuous feeding and continuous cutting of the masterbatch are realized, thereby improving the production efficiency of the masterbatch.

[0007] In a specific embodiment, the masterbatch driving assembly includes a plurality of driving roller groups, and the plurality of driving roller groups are arranged on the working frame to rotate at intervals along the moving direction of the masterbatch; Each set of the driving rollers comprises an upper roller and a lower roller. The upper roller and the lower roller are both rotated by an external driving mechanism and pressed against the masterbatch to drive the masterbatch to slide on the working frame.

[0008] By adopting the above technical solution, when feeding the masterbatch, the driving mechanism drives the upper roller and the lower roller to rotate relative to each other, and the upper roller and the lower roller drive the masterbatch to move when pressing the masterbatch, thereby realizing stable feeding of the masterbatch.

[0009] In a specific possible implementation scheme, the cutting assembly includes a linear drive mechanism and a cutting knife group. A cutting support plate is fixedly provided on the sliding frame, and the masterbatch can slide onto the cutting support plate. The linear drive mechanism is arranged on the sliding frame, and the cutting knife group is arranged on the linear drive mechanism and is arranged opposite to the cutting support plate. The linear drive mechanism is used to drive the cutting knife group to be pressed down onto the cutting support plate so as to be able to cut the masterbatch.

[0010] By adopting the above technical solution, when cutting the masterbatch, the linear drive mechanism drives the cutting knife group to press against the cutting support plate, cuts the masterbatch into masterbatches, and completes the processing of the masterbatches; the cutting support plate is set on the sliding frame, so that the cutting support plate and the cutting knife group can remain relatively still, thereby improving the cutting quality of the masterbatch by the cutting knife group.

[0011] In a specific possible implementation scheme, the cutting knife group includes a mounting plate and a plurality of cutting knives, the mounting plate is connected to the linear drive mechanism, and the plurality of cutting knives are arranged on the mounting plate at intervals along the moving direction of the masterbatch so as to be able to cut the masterbatch at the same time.

[0012] By adopting the above technical solution and using a plurality of cutters, the masterbatch strips can be cut into whole sections, and a plurality of masterbatches can be produced at one time, thereby improving the production efficiency of the masterbatch.

[0013] In a specific possible implementation scheme, the transmission assembly includes a chain transmission mechanism, a belt transmission mechanism and a drive block; The belt transmission mechanism includes a synchronous belt and two synchronous wheels arranged at intervals. The two synchronous wheels are connected by the synchronous belt, and the driving roller group and the synchronous wheels are connected by the chain transmission mechanism to drive the synchronous belt and the masterbatch to move synchronously. The driving block is fixedly arranged on the synchronous belt to be able to push the sliding frame to slide, or to disengage from the sliding frame.

[0014] By adopting the above technical solution, when the driving roller group rotates, the driving roller group drives the synchronous wheel to rotate through the chain transmission mechanism, the synchronous wheel drives the synchronous belt to rotate, the synchronous belt drives the driving block to slide, and the driving block pushes the sliding frame to move at the same speed and in the same direction as the masterbatch, so as to ensure that the cutting knife group and the masterbatch remain stationary; when the cutting knife group completes cutting, the driving block slides to the synchronous wheel and then disengages from the sliding frame, so that the reset assembly can drive the sliding frame to reset, so that the cutting knife group can repeatedly cut the masterbatch.

[0015] In a specific possible implementation scheme, the reset assembly includes a reset spring and a positioning block arranged on the working frame, the reset spring is connected to the sliding frame so as to be able to pull the sliding frame to contact the positioning block, and the positioning block can prevent the sliding frame from sliding so as to reset the sliding frame.

[0016] By adopting the above technical solution, when the driving block drives the sliding frame to slide, the return spring stretches and stores elastic potential energy. When the driving block is separated from the sliding frame, the return spring contracts, pulling the sliding frame to move in the opposite direction and fit with the positioning block, thereby realizing the reset of the sliding frame.

[0017] In a specific possible implementation manner, an adsorption member is provided on the positioning block, and the adsorption member can be adsorbed and connected to the sliding frame.

[0018] By adopting the above technical solution, the accuracy and stability of the sliding frame resetting are improved by utilizing the adsorption of the adsorption member on the sliding frame.

[0019] In a specific possible implementation scheme, the working frame is provided with a slide rail for the sliding frame to slide, the sliding frame is provided with a telescopic spring, the telescopic spring is provided with a friction plate, and the telescopic spring is used to push the friction plate onto the slide rail.

[0020] By adopting the above technical solution, the telescopic spring is used to push the friction plate to rub on the slide rail, thereby reducing the acceleration of the return spring pulling the slide frame, reducing the impact force between the slide frame and the positioning block, and improving the sliding stability of the slide frame.

[0021] In a specific feasible implementation scheme, the slide rail is provided with a rack arranged along the sliding direction of the sliding frame, the sliding frame is rotatably provided with a driving gear meshing with the rack, the sliding frame is provided with a sliding bracket, the sliding bracket is slidably provided with an extrusion plate connected to the telescopic spring, and a driving screw is coaxially fixed on the driving gear. The driving screw is passed through the extrusion plate and is threadedly connected to the extrusion plate so as to drive the extrusion plate away from the friction plate to extend the telescopic spring.

[0022] By adopting the above technical solution, when the reset spring pulls the sliding frame to slide, the driving gear slides along the rack, and the driving gear slides while driving the driving screw to rotate. The driving screw rotates while driving the extrusion plate away from the friction plate, so that the telescopic spring gradually extends. As the telescopic spring continues to extend, the friction force exerted by the friction plate on the slide rail by the telescopic spring gradually decreases, thereby adapting to the process of reducing the pulling force due to the contraction of the telescopic spring, which can effectively avoid the phenomenon that the friction force is greater than the pulling force, resulting in the inability to move the sliding frame, thereby improving the reliability of the resetting of the sliding frame.

[0023] In a specific possible implementation mode, the telescopic spring is sleeved on the driving screw.

[0024] By adopting the above technical solution, the deformation stability of the telescopic spring is improved by guiding the deformation of the telescopic spring by the driving screw.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. When cutting the masterbatch, the masterbatch driving component slides on the working frame, and the masterbatch driving component drives the sliding frame to slide through the transmission component, and its sliding speed is the same as the moving speed of the masterbatch, so that the cutting component and the masterbatch remain stationary, and then the cutting component cuts a section of the masterbatch to form masterbatch, and then the reset component drives the cutting component to reset, when the subsequent section of the masterbatch moves to the cutting position, the transmission component drives the sliding frame to slide again, and again keeps the cutting component and the masterbatch stationary, and the cutting component cuts the section of the masterbatch to form masterbatch. In the cutting process, the masterbatch does not need to stop moving, and the continuous feeding and continuous cutting of the masterbatch are realized, thereby improving the production efficiency of the masterbatch; 2. When the reset spring pulls the sliding frame to slide, the driving gear slides along the rack. The driving gear slides and drives the driving screw to rotate. The driving screw rotates and drives the extrusion plate away from the friction plate, so that the telescopic spring gradually extends. As the telescopic spring continues to extend, the friction force exerted by the friction plate on the slide rail by the telescopic spring gradually decreases, thereby adapting to the process of reducing the pulling force due to the contraction of the telescopic spring. This can effectively avoid the phenomenon that the friction force is greater than the pulling force, resulting in the inability to move the sliding frame, thereby improving the reliability of the reset of the sliding frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a masterbatch cutting device according to an embodiment of the present application.

[0027] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0028] Figure 3 It is a schematic diagram used to show the structure of the drive gear.

[0029] Figure 4 is along Figure 2 Sectional view along line BB.

[0030] Description of reference numerals: 1, work frame; 11, feeding station; 12, cutting station; 13, slide rail; 14, cutting support plate; 2, masterbatch drive assembly; 21, drive roller group; 211, upper roller; 212, lower roller; 22, drive mechanism; 221, drive motor; 3, slide frame; 31, stopper; 4, cutting assembly; 41, linear drive mechanism; 42, cutting knife group; 411, hydraulic cylinder; 421, mounting plate; 422, cutting Knife; 5. Transmission assembly; 51. Chain transmission mechanism; 511. Chain; 512. Sprocket; 52. Belt transmission mechanism; 521. Synchronous belt; 522. Synchronous wheel; 53. Drive block; 6. Reset assembly; 61. Reset spring; 62. Positioning block; 63. Adsorption piece; 64. Rack; 65. Drive gear; 661. Drive screw; 662. Sliding bracket; 663. Friction plate; 664. Extrusion plate; 665. Telescopic spring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The embodiment of the present application discloses a masterbatch cutting device.

[0033] Reference Figure 1 A masterbatch cutting device is provided with a masterbatch driving assembly 2, a sliding frame 3, a cutting assembly 4, a transmission assembly 5 and a reset assembly 6 on a working frame 1. The working frame 1 is divided into a feeding station 11 and a cutting station 12. The masterbatch driving assembly 2 is provided at the feeding station 11, and continuously transports the masterbatch from the feeding station 11 to the cutting station 12. The working frame 1 is provided with a slide rail 13 at the cutting station 12. The setting direction of the slide rail 13 is the same as the sliding direction of the masterbatch. The sliding frame 3 is slidably provided on the slide rail 13. The cutting assembly 4 is provided on the sliding frame 3. A cutting support plate 14 opposite to the cutting assembly 4 is fixedly provided at the bottom of the sliding frame 3. The masterbatch coming out of the feeding station 11 slides onto the cutting support plate 14. The cutting assembly 4 cuts a section of the masterbatch on the cutting support plate 14. The masterbatch driving assembly 2 is connected to the sliding frame 3 through the transmission assembly 5 so that the cutting assembly 4 can slide in the same direction and speed as the masterbatch. The cutting assembly 4 is used to cut a section of the masterbatch into masterbatches. The reset assembly 6 is connected to the sliding frame 3 to drive the cutting assembly 4 to reset.

[0034] When cutting the masterbatch, the masterbatch driving component 2 slides on the working frame 1, so that the masterbatch is continuously fed to the cutting station 12. At the same time, the masterbatch driving component 2 drives the sliding frame 3 to slide through the transmission component 5, and its sliding speed is the same as the moving speed of the masterbatch, so that the cutting component 4 and the masterbatch remain stationary, and then the cutting component 4 cuts a section of the masterbatch that slides onto the cutting support plate 14 to form masterbatch, and then the reset component 6 drives the cutting component 4 to reset, and when the subsequent section of the masterbatch moves to the cutting position, the transmission component 5 drives the sliding frame 3 to slide again, and again keeps the cutting component 4 and the masterbatch stationary, and the cutting component 4 cuts the section of the masterbatch to form masterbatch. The masterbatch does not need to stop moving during the cutting process of the device, and continuous feeding and continuous cutting of the masterbatch are realized, thereby improving the production efficiency of masterbatch.

[0035] Reference Figure 1 The masterbatch driving assembly 2 in this embodiment includes three groups of driving roller groups 21, which are arranged at intervals along the sliding direction of the masterbatch. Each group of driving roller groups 21 includes an upper roller 211 and a lower roller 212, which are both rotatably connected to the working frame 1, and the upper roller 211 and the lower roller 212 are arranged at intervals. The masterbatch is passed between the upper roller 211 and the lower roller 212, and the upper roller 211 and the lower roller 212 are pressed against the masterbatch and rotated by an external driving mechanism 22. The driving mechanism 22 includes a driving motor 221, the output shaft of which is coaxially fixed with the upper roller 211 in one of the groups. The upper roller 211 and the lower roller 212 in the group are transmitted through a gear structure, so that the upper roller 211 and the lower roller 212 rotate relative to each other. The upper roller 211 in the group is connected to the upper rollers 211 in the other two groups through a belt transmission structure, and the lower roller 212 is also connected to the lower rollers 212 in the other two groups through a belt transmission structure, so as to drive the movement of the masterbatch.

[0036] Reference Figure 1 The transmission assembly 5 in this embodiment includes a chain transmission mechanism 51, a belt transmission mechanism 52 and a driving block 53. The chain transmission mechanism 51 includes a chain 511 and two sprockets 512. The belt transmission mechanism 52 includes a synchronous belt 521 and two synchronous wheels 522 arranged at intervals. The two synchronous wheels 522 are rotatably connected to the frame of the working frame 1 above the slide rail 13. The synchronous belt 521 is sleeved on the two synchronous wheels 522, so that the synchronous belt 521 and the synchronous wheels 522 rotate synchronously. One of the sprockets 512 is coaxially fixed on the upper roller 211, and the other sprocket 512 is coaxially fixed on a synchronous wheel 522. The chain 511 is meshed with the two sprockets 512. The diameters of the two sprockets 512, the upper roller 211 and the lower roller 212, and the two synchronous wheels 522 are the same, so that the rotation speed of the synchronous belt 521 is the same as the moving speed of the masterbatch.

[0037] Reference Figure 1 In this embodiment, there are two driving blocks 53, which are evenly spaced along the axial direction of the synchronous belt 521. A stopper 31 is fixedly provided on the sliding frame 3. When the driving block 53 slides on the lowest side of the synchronous belt 521, the driving block 53 is aligned with the stopper 31, and the lowest point of the driving block 53 is lower than the highest point of the stopper 31, so that the driving block 53 can push the stopper 31 to slide.

[0038] When the driving roller group 21 rotates, the driving roller group 21 drives the synchronous wheel 522 to rotate through the chain transmission mechanism 51, and the synchronous wheel 522 drives the synchronous belt 521 to rotate, and the synchronous belt 521 drives the driving block 53 to slide, and the driving block 53 pushes the stopper 31 to slide, so that the sliding frame 3 and the masterbatch move at the same speed and in the same direction, thereby ensuring that the cutting knife group 42 and the masterbatch remain stationary; when the cutting knife group 42 completes cutting, the driving block 53 slides to the synchronous wheel 522, and then disengages from the stopper 31, so that the reset assembly 6 can drive the sliding frame 3 to reset, so that the cutting knife group 42 can repeatedly cut the masterbatch.

[0039] Reference Figure 1 , Figure 2 The reset assembly 6 in this embodiment includes a reset spring 61 and a positioning block 62. The reset spring 61 is sleeved on the slide rail 13, and the positioning block 62 is fixedly arranged on the working frame 1. The reset spring 61 and the slide rail 13 are both penetrated by the positioning block 62. The highest point of the positioning block 62 is lower than the lowest point of the driving block 53 to avoid interference between the driving block 53 and the positioning block 62. One end of the reset spring 61 is fixedly connected to the sliding frame 3, and pulls the sliding frame 3 to abut against the positioning block 62. The positioning block 62 is provided with an adsorption member 63. The adsorption member 63 in this embodiment is a permanent magnet, and it can also be an electromagnet in other embodiments. The adsorption member 63 adsorbs the sliding frame 3 on the positioning block 62 to improve the stability of the fit between the sliding frame 3 and the positioning block 62.

[0040] Reference Figure 3 , Figure 4A rack 64 is embedded at the top of the slide rail 13 along its length direction, and a driving gear 65 meshing with the rack 64 is provided on the sliding frame 3. A driving screw 661 is coaxially fixed on the driving gear 65. The driving screw 661 is arranged in a direction perpendicular to the slide rail 13, and the driving screw 661 is rotationally connected to the sliding frame 3. A sliding bracket 662 is fixedly provided on the sliding bracket 3, and a friction plate 663 and an extrusion plate 664 are slidingly provided on the sliding bracket 662 at intervals. The driving screw 661 is penetrated through the friction plate 663 and the extrusion plate 664, and is threadedly connected with the extrusion plate 664, and is slidably connected with the friction plate 663. A telescopic spring 665 is sleeved on the driving screw 661, and the telescopic spring 665 is located between the friction plate 663 and the extrusion plate 664. One end of the telescopic spring 665 is fixedly connected to the friction plate 663, and the other end is fixedly connected to the extrusion plate 664. The telescopic spring 665 pushes the friction plate 663 to be pressed against the slide rail 13. When the driving block 53 pushes the sliding bracket 3 to slide, the driving screw 661 drives the pressing plate to slide toward the friction plate 663 and squeezes the telescopic spring 665 to contract. When the sliding bracket 3 moves to the maximum position, the telescopic spring 665 contracts to the minimum length.

[0041] When the return spring 61 pulls the sliding frame 3 to slide, the driving gear 65 slides along the rack 64. The driving gear 65 slides and drives the driving screw 661 to rotate. The driving screw 661 rotates and drives the extrusion plate 664 away from the friction plate 663, so that the telescopic spring 665 gradually extends. As the telescopic spring 665 continues to extend, the friction force applied by the friction plate 663 to the slide rail by the telescopic spring 665 gradually decreases, thereby adapting to the process of reducing the pulling force due to the contraction of the telescopic spring 665. This can effectively avoid the phenomenon that the friction force is greater than the pulling force, resulting in the inability to move the sliding frame 3, thereby improving the reliability of the reset of the sliding frame 3.

[0042] Reference Figure 1 The cutting assembly 4 in this embodiment includes a linear drive mechanism 41 and a cutting knife group 42. The linear drive mechanism 41 in this embodiment is a hydraulic cylinder 411, and in other embodiments, it can also be a cylinder, a linear screw, etc. The hydraulic cylinder 411 is vertically fixed downward on the sliding frame 3. The cutting knife group 42 in this embodiment includes a mounting plate 421 and a plurality of cutters 422. The plurality of cutters 422 are used to cut the entire section of the masterbatch strip, and multiple masterbatches can be produced at one time, thereby improving the production efficiency of the masterbatch.

[0043] The mounting plate 421 is fixedly mounted on the piston rod of the hydraulic cylinder 411, and a plurality of cutters 422 are arranged on the mounting plate 421 at intervals along the moving direction of the masterbatch. The plurality of cutters 422 are evenly distributed on both sides of the hydraulic cylinder 411, and the blade of each cutter 422 faces the cutting support plate 14. The hydraulic cylinder 411 drives the cutter 422 on the mounting plate 421 to cut the masterbatch on the cutting support plate 14 to form masterbatch. When the sliding frame 3 is reset to the position of the positioning block 62, the cutter 422 at the front end of the mounting plate 421 is aligned with the front end of the masterbatch, and the driving block 53 is in contact with the sliding frame 3 and is about to push the sliding frame 3 to slide.

[0044] When cutting the masterbatch, the linear drive mechanism 41 drives the cutting knife group 42 to press against the cutting support plate 14, cuts the masterbatch into masterbatches, and completes the processing of the masterbatches; the cutting support plate 14 is set on the sliding frame 3, so that the cutting support plate 14 and the cutting knife group 42 can remain relatively still, thereby improving the cutting quality of the masterbatch by the cutting knife group 42.

[0045] The implementation principle of a masterbatch cutting device in an embodiment of the present application is as follows: when cutting the masterbatch strip, the driving motor 221 drives the upper roller 211 and the lower roller 212 to rotate, and the upper roller 211 and the lower roller 212 drive the masterbatch strip to slide on the working frame 1, so that the masterbatch strip is continuously fed to the cutting station 12, and at the same time, the upper roller 211 drives the synchronous wheel 522 to rotate through the sprocket 512 and the chain 511, and the synchronous wheel 522 pushes the sliding frame 3 to slide through the driving block 53, and its sliding speed is the same as the moving speed of the masterbatch, so that the cutting knife group 42 and the masterbatch and the cutting support plate 14 remain stationary, and then the hydraulic cylinder 411 drives the mounting plate 421 to press down, and the mounting plate 421 drives a number of cutters 422 to cut a section of the masterbatch strip on the sliding cutting support plate 14 to form a masterbatch, and then the hydraulic cylinder 411 drives the cutting tool to lift.

[0046] When the driving block 53 slides to the position of the synchronous wheel 522, the driving block 53 is disengaged from the sliding frame 3, and then the reset spring 61 pulls the sliding frame 3 to slide toward the positioning block 62 and abuts against the positioning block 62. When the subsequent section of the masterbatch moves to the cutting position, another driving block 53 drives the sliding frame 3 to slide again, so that the cutting knife group 42 and the masterbatch remain stationary, and the cutting knife group 42 cuts the section of the masterbatch to form masterbatch. In the cutting process, the masterbatch does not need to stop moving, and the continuous feeding and continuous cutting of the masterbatch are realized, thereby improving the production efficiency of the masterbatch.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A masterbatch cutting device, characterized in that: The invention comprises a masterbatch driving assembly (2), a sliding frame (3), a cutting assembly (4), a transmission assembly (5) and a reset assembly (6) arranged on a working frame (1); the masterbatch driving assembly (2) is used for driving the masterbatch to move on the working frame (1) so as to enable continuous feeding; the cutting assembly (4) is arranged on the sliding frame (3); the masterbatch driving assembly (2) is connected to the sliding frame (3) via the transmission assembly (5) so that the cutting assembly (4) can slide in the same direction and at the same speed as the masterbatch; the cutting assembly (4) is used for cutting a section of the masterbatch into masterbatches; and the reset assembly (6) is connected to the sliding frame (3) so as to drive the cutting assembly (4) to reset.

2. The masterbatch cutting device according to claim 1, characterized in that: The masterbatch driving assembly (2) comprises a plurality of driving roller groups (21), and the plurality of driving roller groups (21) are arranged on the working frame (1) so as to rotate at intervals along the moving direction of the masterbatch; Each set of the driving roller groups (21) comprises an upper roller (211) and a lower roller (212), and the upper roller (211) and the lower roller (212) are both rotated by an external driving mechanism (22) and pressed against the masterbatch so as to drive the masterbatch to slide on the working frame (1).

3. The masterbatch cutting device according to claim 2, characterized in that: The cutting assembly (4) comprises a linear drive mechanism (41) and a cutting knife group (42); a cutting support plate (14) is fixedly provided on the sliding frame (3); the masterbatch strip can slide onto the cutting support plate (14); the linear drive mechanism (41) is arranged on the sliding frame (3); the cutting knife group (42) is arranged on the linear drive mechanism (41) and is arranged opposite to the cutting support plate (14); the linear drive mechanism (41) is used to drive the cutting knife group (42) to be pressed down onto the cutting support plate (14) so ​​as to cut the masterbatch strip.

4. The masterbatch cutting device according to claim 3, characterized in that: The cutting knife group (42) comprises a mounting plate (421) and a plurality of cutting knives (422); the mounting plate (421) is connected to the linear drive mechanism (41); and the plurality of cutting knives (422) are arranged on the mounting plate (421) at intervals along the moving direction of the masterbatch so as to be able to cut the masterbatch at the same time.

5. The masterbatch cutting device according to claim 2, characterized in that: The transmission assembly (5) comprises a chain transmission mechanism (51), a belt transmission mechanism (52) and a driving block (53); The belt transmission mechanism (52) comprises a synchronous belt (521) and two synchronous wheels (522) arranged at an interval, the two synchronous wheels (522) are connected via the synchronous belt (521), the driving roller group (21) and the synchronous wheels (522) are connected via the chain transmission mechanism (51) to drive the synchronous belt (521) to move synchronously with the masterbatch, and the driving block (53) is fixedly arranged on the synchronous belt (521) to be able to push the sliding frame (3) to slide, or to be detached from the sliding frame (3).

6. The masterbatch cutting device according to claim 5, characterized in that: The reset assembly (6) comprises a reset spring (61) and a positioning block (62) arranged on the working frame (1); the reset spring (61) is connected to the sliding frame (3) so as to be able to pull the sliding frame (3) into contact with the positioning block (62); the positioning block (62) is able to prevent the sliding frame (3) from sliding so as to reset the sliding frame (3).

7. The masterbatch cutting device according to claim 6, characterized in that: The positioning block (62) is provided with an adsorption member (63), and the adsorption member (63) can be adsorbed and connected to the sliding frame (3).

8. The masterbatch cutting device according to claim 6, characterized in that: The working frame (1) is provided with a slide rail (13) for the sliding frame (3) to slide, the sliding frame (3) is provided with a telescopic spring (665), the telescopic spring (665) is provided with a friction plate (663), and the telescopic spring (665) is used to push the friction plate (663) on the slide rail (13).

9. The masterbatch cutting device according to claim 8, characterized in that: The slide rail (13) is provided with a rack (64) arranged along the sliding direction of the sliding frame (3); the sliding frame (3) is rotatably provided with a driving gear (65) meshing with the rack (64); the sliding frame (3) is provided with a sliding bracket (662); the sliding bracket (662) is slidably provided with an extrusion plate (664) connected to the telescopic spring (665); a driving screw (661) is coaxially fixed on the driving gear (65); the driving screw (661) is passed through the extrusion plate (664) and is threadedly connected to the extrusion plate (664) so ​​as to be able to drive the extrusion plate (664) away from the friction plate (663) so as to extend the telescopic spring (665).

10. The masterbatch cutting device according to claim 9, characterized in that: The telescopic spring (665) is sleeved on the driving screw (661).

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