Fly cutter mechanism for rolling and cutting film

Abstract

The utility model discloses a fly cutter mechanism for thin film winding and cutting, and belongs to the technical field of thin film winding. The device mainly comprises a support frame; the fly cutter assembly is installed on the supporting frame and provided with a pressing plate for pressing a thin film, a first sliding block for driving the pressing plate to move, a first lead screw for driving the first sliding block to linearly move, a boss for conducting auxiliary supporting and cutting on the thin film and a concave cutter rest for cutting the thin film. The concave tool rest is provided with a cutting blade; and the cleaning assembly is installed on the fly cutter assembly, and the cleaning assembly is provided with a draught fan for sucking chippings, a gear for driving the draught fan to rotate, a rack for driving the gear to rotate and a push rod for pushing the draught fan to move. According to the fly cutter mechanism for winding and cutting off the thin film, by means of movement of the concave cutter rest in the thin film cutting-off process, the draught fan is pushed to move and operate, and cut chippings are collected in real time.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of film winding, in particular to a flying knife mechanism for film winding and cutting. BACKGROUND

[0002] In the film production and processing industry, film winding and cutting are extremely important links, and the processing quality and efficiency have a direct impact on product quality and enterprise production efficiency. In film production, the film needs to be wound, and the film is wound through a winding device. After the winding roll completes the winding work, the film needs to be cut off so as to be wound by the next winding roll. In the cutting process, a flying knife needs to be used for cutting.

[0003] For example, the utility model patent with the publication number CN217807740U discloses a flying knife assembly for film winding and cutting, which comprises a base, an inlet roll, a fixed vertical plate, a guide groove, a driving mechanism, a gantry, a lifting groove, a pressing mechanism, a winder and a limiting roll. Thus, the deformation of the cutting blade during the cutting of the film can be prevented, the flatness of the film cutting edge is improved, manual cutting is not needed, and the film cutting efficiency is improved.

[0004] In actual application of the above cutting device, the knife holder fixing seat is slid in the guide groove to complete the cutting action. However, the device has a significant defect, that is, it lacks an effective chip cleaning mechanism. During the cutting process, a large amount of film chips will be generated, which can easily accumulate in the concave knife holder and adhere to the surface of the blade. The existence of the chips will bring many adverse effects. On the one hand, it will reduce the sharpness of the blade, thereby causing the cutting quality to be poor. On the other hand, if the chips are accumulated for a long time, they may enter the guide groove, which will accelerate the wear of the guide rail and the knife holder fixing seat, and finally shorten the service life of the device. Therefore, it is necessary to provide a flying knife mechanism for film winding and cutting to solve the above problems.

[0005] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background technology of the concept of the present application, and therefore, it can contain information that does not constitute prior art. SUMMARY

[0006] Based on the above problems existing in the prior art, the present application solves the problem of providing a flying knife mechanism for film winding and cutting, which solves the problem of cutting device sliding cutting by knife holder fixing seat, lacking chip cleaning mechanism, chips adhering to blade and entering guide rail, resulting in poor cutting quality.

[0007] The technical scheme adopted by the application to solve its technical problems is: the fly cutter mechanism for film winding and cutting, comprising a support frame; a fly cutter assembly is installed on the support frame, the fly cutter assembly has a pressing plate for pressing the film, a first sliding block for driving the pressing plate to move, a first screw for driving the first sliding block to move linearly, a boss for assisting the film in cutting, and a concave cutter holder for cutting the film, the concave cutter holder has a cutting blade; a cleaning assembly is installed on the fly cutter assembly, the cleaning assembly has a fan for sucking debris, a gear for driving the fan to rotate, a rack for driving the gear to rotate, and a push rod for moving the fan.

[0008] Further, the fly cutter assembly comprises a mounting bracket installed on the support frame, the mounting bracket is concave, a first moving unit is fixedly installed through the mounting bracket, the first moving unit comprises a fixed plate fixedly installed through the mounting bracket, and the fixed plate is provided with through holes on both sides;

[0009] A driving member is installed at the top end of the fixed plate, the first screw is installed at the output end of the driving member, one end of the first screw is connected with the inner wall of the fixed plate through a bearing, and the first screw is threadedly connected with a first sliding block.

[0010] Further, the first sliding block is installed with right-angle rods on both sides, right-angle pipes are installed at the two sides of one end of the right-angle rods, one end of two groups of horizontally arranged right-angle pipes is connected with an auxiliary plate, a pressing plate is installed at the bottom of the auxiliary plate, and the boss is installed on the support frame.

[0011] Further, a long groove is formed in the boss, a second moving unit is installed in the long groove, the second moving unit has a similar structure to the first moving unit, the first sliding block of the second moving unit is defined as a second sliding block, and the concave cutter holder is installed on the second sliding block.

[0012] Further, the rack is installed on the side surface of the auxiliary plate, a side plate is installed on the auxiliary plate, a limiting groove is formed in the side plate, a rotating shaft is slidably installed in the limiting groove, the fan shaft is installed at the center of the rotating shaft, the fan has a rotating shaft, the gear is fixedly sleeved on the rotating shaft, and the rotating shaft is sleeved with a limiting sleeve at one end.

[0013] Further, the fan is installed with a clamping block on the side surface, the clamping block has a groove, and the push rod is installed on the concave cutter holder.

[0014] The beneficial effects of the present application are: the fly knife mechanism for film winding and cutting provided by the present application realizes real-time collection of cutting scraps by moving the concave knife holder during the film cutting process, pushing the fan to move and operate, effectively avoiding the scattering and accumulation of waste materials in the working area, not only improving the working environment, but also reducing the influence of waste materials on the normal operation of the equipment, reducing the probability of equipment failure, prolonging the service life of the equipment.

[0015] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings accompanying the specification of the present application serve to provide further understanding of the present application, the illustrative embodiments thereof, and the explanation thereof, and do not constitute an improper limitation of the present application.

[0017] In the drawings:

[0018] Figure 1 is a schematic diagram of the fly knife mechanism for film winding and cutting in the present application;

[0019] Figure 2 is a schematic diagram of the fly knife mechanism for film winding and cutting in the present application; Figure 1

[0020] Figure 3 is an enlarged view of A of the fly knife mechanism for film winding and cutting in the present application; Figure 2

[0021] Figure 4 is a schematic diagram of the fly knife assembly structure in the fly knife mechanism for film winding and cutting in the present application; Figure 2

[0022] Figure 5 is an enlarged view of B of the fly knife mechanism for film winding and cutting in the present application; Figure 4

[0023] In the drawings, various reference signs represent:

[0024] 1, unwinding assembly; 11, support frame; 14, first support plate; 15, winding rod; 16, motor; 17, second support plate; 18, feeding rod; 2, fly knife assembly; 21, mounting frame; 22, fixed plate; 23, driving piece; 24, first lead screw; 25, first sliding block; 26, right-angle rod; 27, right-angle tube; 28, auxiliary plate; 29, pressing plate; 210, boss; 211, long groove; 212, second moving unit; 214, concave knife holder; 3, cleaning assembly; 31, rack; 32, side plate; 33, limiting groove; 34, fan; 35, rotating shaft; 36, limiting sleeve; 37, clamping block; 38, push rod. DETAILED DESCRIPTION

[0025] ​​​​It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0026] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0027] As shown in Figures 1-5 The present application provides a flying knife mechanism for film winding and cutting, which comprises a winding assembly 1, the winding assembly 1 comprises a support frame 11, and two groups of first supporting plates 14 are fixedly installed on the support frame 11, and a winding roll 15 is bearing installed between the two groups of first supporting plates 14, the winding roll 15 is wound with a film, and a motor 16 is fixedly installed on the side of one group of first supporting plates 14, the output end of the motor 16 is fixedly connected with the first supporting plate 14 and the winding roll 15, and the winding roll 15 is adapted to rotate with the output end of the motor 16 to wind the film;

[0028] Two groups of second supporting plates 17 are fixedly installed on the support frame 11, and a feeding roll 18 is installed between the two groups of second supporting plates 17;

[0029] Meanwhile, a flying knife assembly 2 is installed on the support frame 11, the flying knife assembly 2 comprises a mounting frame 21 fixedly installed on the support frame 11, the mounting frame 21 is concave, and a first moving unit is fixedly installed through the mounting frame 21, the first moving unit comprises a fixed plate 22 fixedly installed through the mounting frame 21, and the fixed plate 22 is provided through on both sides;

[0030] A driving member 23 is fixedly installed at the top end of the fixed plate 22, the driving member 23 can be a motor, a first lead screw 24 is fixedly installed at the output end of the driving member 23, one end of the first lead screw 24 is bearing connected with one end of the inner wall of the fixed plate 22, and a first sliding block 25 is threadedly connected with the first lead screw 24, the first lead screw 24 is adapted to rotate with the output end of the driving member 23 to drive the first sliding block 25 to move along the linear direction of the fixed plate 22;

[0031] Right-angle rods 26 are fixedly installed on both sides of the first sliding block 25, and right-angle tubes 27 are fixedly installed on both sides of one end of the right-angle rods 26. An auxiliary plate 28 is connected to one end of the two sets of horizontally arranged right-angle tubes 27, and a pressure plate 29 is fixedly installed at the bottom of the auxiliary plate 28. Meanwhile, a boss 210 is fixedly installed on the support frame 11 directly below the mounting frame 21.

[0032] Thus, the driving component 23 (such as a motor) drives the first lead screw 24 to rotate, causing the first sliding block 25, which is threaded onto the first lead screw 24, to move linearly along the fixed plate 22. The first sliding block 25 drives the auxiliary plate 28 and the pressure plate 29 to move up and down through the right-angle rod 26 and the right-angle tube 27. When the pressure plate 29 is pressed down to cooperate with the boss 210, the film located between the two can be squeezed and fixed, which improves the stability of the film during cutting.

[0033] A long groove 211 is provided on the boss 210, and a second moving unit 212 is installed in the long groove 211. The second moving unit 212 has a similar structure to the first moving unit. Here, the first sliding block 25 of the second moving unit 212 is defined as the second sliding block, and a concave knife holder 214 is fixedly installed on the second sliding block. The concave knife holder 214 has a cutting blade. It should be noted that the film is located at the upper end of the boss 210 through the feed roller 18. The winding roller 15 is driven by the starting motor 16 to be wound up. When cutting is required, the second moving unit 212 in the long groove 211 has a similar structure to the first moving unit. The motor drives the second sliding block to move in the long groove 211, and the concave knife holder 214 fixed on the second sliding block moves accordingly. The cutting blade on the concave knife holder 214 is used to cut the film.

[0034] To remove waste material during film cutting, such as Figures 4-5 As shown, a cleaning assembly 3 is installed on the auxiliary plate 28. The cleaning assembly 3 includes a rack 31 fixedly installed on the side of the auxiliary plate 28, and a side plate 32 fixedly installed on the auxiliary plate 28. A limiting groove 33 is provided on the side plate 32, and a rotating shaft 35 is slidably installed in the limiting groove 33. A fan 34 is installed on the central bearing of the rotating shaft 35. The fan 34 has a rotating shaft (not shown in the figure), and a gear (not shown in the figure) meshes with the rack 31. The gear is fixedly sleeved on the rotating shaft, and a limiting sleeve 36 is fixedly sleeved on one end of the rotating shaft 35. The limiting sleeve 36 is suitable for limiting one end of the rotating shaft 35 to prevent the rotating shaft 35 from coming out of the limiting groove 33. At the same time, the gear is set to fit against the side plate 32.

[0035] And the side of the fan 34 is fixedly installed with a clamping block 37 having a recess, while the recessed holder 214 is fixedly installed with a push rod 38. It is to be noted that when the pressing plate 29 gradually approaches the boss 210 with the movement of the first sliding block 25, and the film is pressed on the boss 210, at this time the push rod 38 corresponds to the recess, and when the second sliding block drives the cutting blade on the recessed holder 214 to cut the film, at this time the push rod 38 gradually approaches the recess of the clamping block 37 and pushes the fan 34 to move along the linear direction of the limiting groove 33, at this time the gear rotates synchronously on the rack 31, thereby driving the fan 34 to rotate, so that the film is cut and the debris has a certain negative pressure suction force;

[0036] When the first sliding block 25 is driven to move downward by the first lead screw 24, the pressing plate 29 gradually approaches the boss 210, and the film is tightly pressed on the boss 210. In this process, the push rod 38 on the recessed holder 214 moves to the corresponding position of the recess of the clamping block 37 on the side of the fan 34, preparing for the subsequent movement of the fan 34.

[0037] The second sliding block drives the recessed holder 214 to move, and the cutting blade cuts the fixed film. At the same time, the push rod 38 gradually extends into the recess of the clamping block 37 and pushes the fan 34 to move linearly along the limiting groove 33 on the side plate 32. Since the gear is fixedly sleeved on the rotating shaft of the fan 34 and is engaged with the rack 31 on the side of the auxiliary plate 28, the linear movement of the fan 34 will drive the gear to rotate on the rack 31.

[0038] The rotation of the gear drives the rotating shaft of the fan 34 to rotate, thereby starting the operation of the fan 34. During the operation of the fan 34, negative pressure suction force is generated to suck and collect the debris generated during the cutting of the film. The limiting sleeve 36 fixedly sleeved on one end of the rotating shaft 35 can prevent the rotating shaft 35 from coming out of the limiting groove 33, ensuring the stability of the fan 34 during movement and operation, maintaining the continuous negative pressure suction force on the film cutting debris, and realizing the effective removal of waste;

[0039] As described above, in the unwinding assembly 1, the motor 16 is started, and the output shaft drives the winding rod 15 to rotate, gradually unwinding the film wound on the winding rod 15. The film is guided by the inlet rod 18 and laid on the upper surface of the boss 210. In this process, the winding rod 15 continues to rotate, stably conveying the film forward, preparing for the subsequent cutting operation.

[0040] When the film needs to be cut off, the first moving unit of the flying knife assembly 2 starts to work. The driving part 23 (motor) starts to drive the first screw rod 24 to rotate. Since the first sliding block 25 is threadedly connected with the first screw rod 24, the first sliding block 25 moves downward along the linear direction of the fixed plate 22. The first sliding block 25 drives the auxiliary plate 28 and the pressing plate 29 to synchronously descend through the right-angle rod 26 and the right-angle tube 27. When the pressing plate 29 contacts and presses the film on the boss 210, the film is stably fixed, effectively preventing the film from shifting or shaking during the cutting process, and ensuring the cutting accuracy. At the same time, the push rod 38 on the concave knife holder 214 moves to the position corresponding to the groove of the side clamping block 37 of the fan 34.

[0041] Film cutting and waste collection preparation: after the film is fixed, the second moving unit 212 starts to work. Similar to the structure of the first moving unit, the motor drives the second screw rod to rotate, and drives the second sliding block to move in the long groove 211 of the boss 210. The concave knife holder 214 fixed on the second sliding block moves, and the cutting blade on the concave knife holder 214 cuts the fixed film. During the cutting process, the push rod 38 gradually extends into the groove of the clamping block 37, and pushes the fan 34 to slide linearly along the limiting groove 33 on the side plate 32.

[0042] When the fan 34 slides, since the gear fixed sleeve is sleeved on the rotating shaft of the fan 34 and is engaged with the rack 31 on the side surface of the auxiliary plate 28, the linear sliding of the fan 34 drives the gear to rotate on the rack 31. The rotation of the gear drives the rotating shaft of the fan 34 to rotate, so that the fan 34 starts to operate. The operation of the fan 34 generates a negative pressure suction force to suck and collect the cutting debris generated during the cutting of the film. The limiting sleeve 36 fixedly sleeved on one end of the rotating shaft 35 prevents the rotating shaft 35 from being pulled out of the limiting groove 33, and ensures the stability of the fan 34 during the movement and operation, so that the cutting debris can be continuously and effectively sucked and removed.

[0043] The mechanism realizes the full-process automatic operation of the film unwinding, conveying, fixing, cutting and waste collection, reduces the manual intervention, reduces the labor intensity, avoids the errors caused by manual operation, and significantly improves the production efficiency and the stability of the product quality.

[0044] Through the cooperation of the pressing plate 29 and the boss 210, the film is stably fixed before cutting, effectively preventing the film from shifting during the cutting process, ensuring that the cutting blade can accurately cut the film, ensuring the flatness and precision of the cutting edge of the film, and improving the product qualification rate.

[0045] The movement of the concave cutter holder 214 in the film cutting process is ingeniously utilized to push the fan 34 to move and operate, realizing real-time collection of cutting debris. The scattering and accumulation of waste in the working area are effectively avoided, not only improving the working environment, but also reducing the influence of waste on the normal operation of the equipment, reducing the probability of equipment failure, and prolonging the service life of the equipment.

[0046] The overall mechanism has reasonable component layout and close cooperation. The first and second moving units 212 are similar in structure, simplifying the design and manufacturing difficulty. The waste collection device is linked with the film cutting process, without the need for additional driving devices, reducing the cost and energy consumption of the equipment

[0047] Compared with the traditional device lacking of debris cleaning mechanism, debris accumulates in the concave cutter holder 214 and adheres to the blade surface, affecting the cut quality. The present scheme sets a rack 31 on the side of the auxiliary plate 28, which meshes with the gear to drive the fan 34 to operate, which can timely suck and discharge the waste during film cutting. It effectively avoids the accumulation of debris in the concave cutter holder 214 and prevents it from adhering to the blade, solving the problem of poor cut quality caused by debris from the root.

[0048] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A flying knife mechanism for film roll cutting, characterized by: Include: Support frame (11); Fly knife assembly (2), the fly knife assembly (2) is installed on the support frame (11), the fly knife assembly (2) has the pressing plate (29) of film pressing, and the first sliding block (25) of driving the pressing plate (29) moves, and the first lead screw (24) of driving the first sliding block (25) moves linearly, and the boss (210) of assisting the film to support cutting, and the recessed knife holder (214) of cutting the film, the recessed knife holder (214) has a cutting blade; Cleaning assembly (3), the cleaning assembly (3) is installed on the fly knife assembly (2), the cleaning assembly (3) has the fan (34) of suctioning debris, and the gear of driving the fan (34) rotates, and the rack (31) of driving the gear rotates, and the push rod (38) of pushing the fan (34) moves.

2. The flying knife mechanism for film winding and cutting according to claim 1, characterized in that: The fly knife assembly (2) includes a mounting bracket (21) mounted on the support frame (11), the mounting bracket (21) is concave, the first moving unit is fixedly installed through the mounting bracket (21), the first moving unit includes a fixed plate (22) fixedly installed on the mounting bracket (21), both sides of the fixed plate (22) are provided through; The top end of the fixed plate (22) is provided with a driving member (23), the first lead screw (24) is installed on the output end of the driving member (23), one end of the first lead screw (24) is connected with the inner wall of the fixed plate (22), and the first sliding block (25) is threadedly connected on the first lead screw (24).

3. The flying knife mechanism for film roll cutting according to claim 2, characterized in that: Both sides of the first sliding block (25) are provided with right angle rods (26), both sides of one end of the right angle rod (26) are provided with right angle pipes (27), one end of the two groups of horizontally arranged right angle pipes (27) is connected with an auxiliary plate (28), the bottom of the auxiliary plate (28) is provided with a pressing plate (29), and the boss (210) is installed on the support frame (11).

4. The flying knife mechanism for film roll cutting according to claim 3, characterized in that: The boss (210) is provided with a long slot (211), and the second moving unit (212) is installed in the long slot (211). The second moving unit (212) is similar to the first moving unit, and the first sliding block (25) of the second moving unit (212) is defined as the second sliding block. The recessed knife holder (214) is installed on the second sliding block.

5. The flying knife mechanism for film roll cutting according to claim 4, characterized in that: The rack (31) is installed on the side of the auxiliary plate (28), the side plate (32) is installed on the auxiliary plate (28), the limiting slot (33) is formed in the side plate (32), the rotating shaft (35) is slidably installed in the limiting slot (33), the fan (34) is bearing installed in the center of the rotating shaft (35), the fan (34) has a rotating shaft, the gear is fixedly sleeved on the rotating shaft, and the rotating shaft (35) is sleeved with a limiting sleeve (36) at one end.

6. The flying knife mechanism for film roll cutting according to claim 5, characterized in that: The side of the fan (34) is provided with a clamping block (37), the clamping block (37) has a groove, and the push rod (38) is installed on the recessed knife holder (214).

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