Bidirectional swinging edge cutting device for soft high-viscosity self-adhesion protective film

Abstract

The invention discloses a bidirectional swing edge cutting device for a soft high-viscosity self-adhesion protective film. The bidirectional swing edge cutting device comprises a transverse swing assembly, a driving assembly and a vertical swing assembly. The transverse swinging assembly comprises a supporting plate, a movable rod, a sliding rail and a sliding block, the sliding rail is installed at the top end of the supporting plate, the sliding block is in sliding connection with the sliding rail, the movable rod is fixedly connected with the sliding block, and a cutter installation box is installed at the bottom end of the sliding block; the vertical swing assembly comprises movable shafts, a support, rotating wheels and a disc, the movable shafts are installed at the two ends of the supporting plate, the rotating wheels are installed at the bottom end of the support, and the disc is located below the rotating wheels. The swinging cutter is used for solving the problems of corrugated edges and rib explosion during film rolling, meanwhile, the cutter swings around a movable shaft through the vertical swinging assembly, abrasion of a single position of the cutter is reduced, and the service life of the cutter is prolonged; bidirectional driving periodic movement is achieved through ingenious design, and the structure is exquisite.

Description

Technical Field

[0001] The invention relates to the technical field of plastic films, and in particular to a bidirectional swing trimming device for a soft high-viscosity self-adhesive protective film. Background Art

[0002] The self-adhesive protective film on the market is generally produced by a multi-layer co-extrusion one-time molding process. Regardless of the blown film or cast film process, the edge of the film will produce irregular slight deformation after cutting and trimming due to machine vibration, tool wear, crystal points in the film and other foreign objects. In addition, due to the high viscosity and softness of the product and the need to remove bubbles during winding, it is necessary to apply tension and pressure to the film roll during winding to achieve a tight winding effect. Also, because the film itself has a certain thickness deviation during molding, ruffles and bursts often appear at the edge of the film after cutting with the traditional knife holder. This type of situation occurs irregularly and is difficult to solve.

[0003] Chinese utility model patent 201721193568.5 is a bidirectional swing trimming device for soft high-viscosity self-adhesive protective film, which uses a swinging cutter to avoid the problem of rib cracking on both sides of the roll film. However, the relative position of the cutter film and the cutter is relatively fixed, and the left and right swinging of the cutter increases the lateral force of the cutter, making the contact position between the cutter and the film more prone to wear, requiring frequent knife changes, affecting production efficiency.

[0004] Therefore, how to provide a bidirectional swing trimming device for a soft high-viscosity self-adhesive protective film to solve the problems existing in the prior art is of great significance for its application. Summary of the invention

[0005] In view of this, the purpose of the present application is to provide a bidirectional swing trimming device for soft high-viscosity self-adhesive protective film, so as to solve the problem in the prior art that the contact position between the cutter and the film is more prone to wear, requiring frequent knife changes, affecting production efficiency.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A bidirectional swing trimming device for a soft high-viscosity self-adhesive protective film, comprising a lateral swing component, a driving component and a vertical swing component;

[0008] The lateral swing assembly comprises a support plate, a movable rod, a slide rail and a slide block, wherein the slide rail is mounted on the top of the support plate, the slide block is slidably connected to the slide rail, the movable rod is fixedly connected to the slide block, and a cutter mounting box is mounted on the bottom end of the slide block;

[0009] The vertical swing assembly includes a movable shaft, a bracket, a rotating wheel and a disc, wherein the movable shaft is mounted on both ends of the support plate, the rotating wheel is mounted on the bottom end of the bracket, and the disc is located below the rotating wheel;

[0010] The driving assembly includes a motor, an eccentric frame, a transmission rod, a connecting rod and a transmission rod. The eccentric frame is installed on the output shaft of the motor, the transmission rod is fixedly connected to the bottom of the eccentric frame, the transmission rod is transmission connected to the disc, and the eccentric frame is transmission connected to the movable rod through the connecting rod.

[0011] Preferably, both ends of the connecting rod are provided with collars, one of the collars is sleeved on the eccentric frame, and the other collar is hinged to one end of the movable rod.

[0012] Preferably, the cross section of the movable rod is rectangular, the top end of the sliding block is threadedly connected with a fixed knob, and the bottom end of the fixed knob is in contact with the movable rod.

[0013] Preferably, there are two groups of the lateral swing components, and the lateral swing components are symmetrically installed at both ends of the support plate.

[0014] Preferably, the sliding block comprises a cross bar and a vertical bar, the cross bar is slidably connected to the slide rail, a mounting groove is provided on a side of the vertical bar, and the cutter mounting box is fixedly connected to the mounting groove.

[0015] Preferably, a rectangular groove is provided on one side of the support plate, the transmission rod passes through the rectangular groove, the disc is located below the rectangular groove, the bracket is slidably connected to the rectangular groove, a fixing bolt is threadedly connected to the front side of the support plate, and the end of the fixing bolt abuts against the bracket. The upper surface of the disc is arranged to be inclined.

[0016] Preferably, the cutter installation box comprises a box body, fixing screws, fixing rods, fixing holes, magnetic blocks, handles, and a cutter. A slide groove is provided on the top of the box body, and the slide groove is in a long strip shape.

[0017] Preferably, a mounting groove is provided at the bottom end of the box body, a fixing rod is fixedly connected to the inside of the mounting groove, and a fixing hole is provided on the surface of the magnetic block.

[0018] Preferably, a circular hole adapted to the fixing rod is provided on the surface of the cutter, the magnetic block is magnetically connected to the mounting groove, and the fixing rod is engaged with the fixing hole after passing through the circular hole.

[0019] Preferably, the handle is mounted on the outside of the magnetic block, the mounting groove is opened at an angle of 45°, and the fixing screw passes through the slide groove and is threadedly connected to the mounting groove.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention enables the cutter to swing back and forth laterally by means of a lateral swing assembly, thereby avoiding the problems of ruffles and ribs on both sides of the film roll.

[0022] 2. The present invention enables the cutter to swing with a movable axis through a vertical swing assembly, thereby reducing wear on a single position of the cutter and increasing the service life of the cutter.

[0023] 3. The lateral swing assembly and the vertical swing assembly in the present invention are driven by a single motor, and bidirectional drive periodic movement is achieved through ingenious design, with a sophisticated structure.

[0024] 4. The present invention adopts an upper slide rail to reduce wear and tear and increase service life.

[0025] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application so that it can be implemented in accordance with the contents of the specification, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings as follows.

[0026] Based on the detailed description of the specific embodiments of the present application in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the lateral swing assembly in the present invention;

[0030] Figure 3 is a schematic diagram of the structure of the driving component in the present invention;

[0031] Figure 4 It is a structural schematic diagram of the cutter installation box in the present invention;

[0032] Figure 5 It is a schematic diagram of the structure of the vertical swing assembly of the present invention when it swings downward;

[0033] Figure 6 It is a structural schematic diagram of the vertical swing assembly of the present invention when it swings upward.

[0034] In the figure: 1. support plate; 2. motor; 3. movable rod; 4. fixing knob; 5. sliding block; 6. slide rail; 7. mounting slot; 8. cutter mounting box; 9. disc; 10. rectangular slot; 11. movable shaft; 12. connecting rod; 13. eccentric frame; 14. bracket; 15. transmission rod; 16. rotating wheel; 17. fixing bolt; 81. box body; 82. fixing screw; 83. slide slot; 84. fixing rod; 85. fixing hole; 86. magnetic block; 87. handle; 88. cutter; 89. mounting slot. DETAILED DESCRIPTION

[0035] To make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, rather than all of the embodiments. In the following description, specific details such as specific configuration and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures is omitted in the embodiment.

[0036] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0037] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0038] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusions.

[0039] See also Figure 1-6, the present invention provides a technical solution of a bidirectional swing trimming device for a soft high-viscosity self-adhesive protective film: comprising a lateral swing component, a driving component and a vertical swing component;

[0040] The lateral swing assembly includes a support plate 1, a movable rod 3, a slide rail 6 and a slide block 5. The slide rail 6 is installed on the top of the support plate 1. The slide block 5 is slidably connected to the slide rail 6. The movable rod 3 is fixedly connected to the slide block 5. A cutter installation box 8 is installed at the bottom of the slide block 5.

[0041] The vertical swing assembly includes a movable shaft 11, a bracket 14, a rotating wheel 16 and a disc 9. The movable shaft 11 is installed at both ends of the support plate 1, the rotating wheel 16 is installed at the bottom end of the bracket 14, and the disc 9 is located below the rotating wheel 16.

[0042] The driving assembly includes a motor 2, an eccentric frame 13, a transmission rod 15, a connecting rod 12 and a transmission rod 15. The output shaft of the motor 2 is connected to a reduction gearbox, which is a commonly used model on the market. The eccentric frame 13 is installed on the output shaft of the reduction gearbox. The transmission rod 15 is fixedly connected to the bottom of the eccentric frame 13. The transmission rod 15 is connected to the disc 9. The eccentric frame 13 is connected to the movable rod 3 through the connecting rod 12. Both ends of the connecting rod 12 are provided with rings, one of which is mounted on the eccentric frame 13, and the other is hinged to one end of the movable rod 3.

[0043] In this embodiment, the motor 2 drives the eccentric frame 13 to rotate through the reduction box, the eccentric frame 13 drives the movable rod 3 to reciprocate through the connecting rod 12, and the movable rod 3 drives the two sliding blocks 5 to slide left and right. At the same time, the sliding block 5 is installed at the top of the slide rail 6 to reduce stress wear.

[0044] The cross-section of the movable rod 3 is rectangular, and the top end of the sliding block 5 is threadedly connected to the fixed knob 4. The bottom end of the fixed knob 4 contacts the movable rod 3. The spacing between the cutters 88 on both sides is adjusted according to the production size of the film. By turning the fixed knob 4, the relative position of the two sliding blocks 5 and the movable rod 3 is adjusted, and then the spacing of the cutters 88 is adjusted after the adjustment is completed.

[0045] There are two groups of transverse swing assemblies, which are symmetrically installed at both ends of the support plate 1, so as to realize cutting of both sides of the film, and use the same movable rod 3 for transmission.

[0046] The sliding block 5 comprises a horizontal bar and a vertical bar. The horizontal bar is slidably connected to the slide rail 6. A mounting groove 7 is provided on the side of the vertical bar. The cutter mounting box 8 is fixedly connected to the mounting groove 7.

[0047] A rectangular groove 10 is provided on one side of the support plate 1, and the transmission rod 15 passes through the rectangular groove 10. The disc 9 is located below the rectangular groove 10, and the bracket 14 is slidably connected to the rectangular groove 10. A fixing bolt 17 is threadedly connected to the front of the support plate 1, and the end of the fixing bolt 17 is against the bracket 14. The upper surface of the disc 9 is set to be inclined. The shape of the disc 9 can be a saddle shape or any shape with a curved surface at the top. The disc 9 is constantly rotating, so that the bracket 14 in contact with the top of the disc 9 is constantly raised and lowered, thereby adjusting the height of the front side of the support plate 1, and the relative position of the bracket 14 and the rectangular groove 10 can be released by the fixing bolt 17, thereby adjusting the distance between the rotating wheel 16 and the circular disc 9, and then adjusting the height difference of the undulating height of the rotating wheel 16 to achieve the adjustment of the swing amplitude of the cutter.

[0048] The cutter mounting box 8 comprises a box body 81, fixing screws 82, fixing rods 84, fixing holes 85, magnetic blocks 86, handles 87 and cutters 88. A slide groove 83 is provided at the top of the box body 81, and the slide groove 83 is in a long strip shape. A mounting groove 89 is provided at the bottom of the box body 81, and a fixing rod 84 is fixedly connected to the inside of the mounting groove 89. A fixing hole 85 is provided on the surface of the magnetic block 86. A circular hole matching the fixing rod 84 is provided on the surface of the cutter 88. The magnetic block 86 is magnetically connected to the mounting groove 89, and the fixing rod 84 is engaged with the fixing hole 85 after passing through the circular hole. The handle 87 is installed on the outside of the magnetic block 86. The mounting groove 7 is opened at a 45° angle, and the fixing screw 82 passes through the slide groove 83 and is threadedly connected to the mounting groove 7.

[0049] In the present embodiment, the position of the cutter 88 can be adjusted. When in use, the fixing screw 82 is loosened, and the entire box body 81 is moved up and down after loosening, so as to adjust the contact position between the cutter 88 and the film. After the adjustment is completed, the fixing screw 82 is used to lock it. When replacing the cutter, the magnetic block 86 is pulled outward through the handle 87, and then the cutter 88 is removed from the fixing rod 84, and then replaced with a new cutter 88, and then the magnetic block 86 is fixed to the mounting groove 89 to complete the installation of the cutter.

[0050] During specific use, first adjust the spacing between the cutters 88 on both sides according to the production size of the film, and adjust the relative position of the two sliding blocks 5 and the movable rod 3 by turning the fixed knob 4, and then adjust the spacing between the cutters 88. After the adjustment is completed, start the motor 2. At this time, the motor 2 drives the eccentric frame 13 to rotate, and the eccentric frame 13 drives the movable rod 3 to reciprocate through the connecting rod 12. The movable rod 3 drives the cutter 88 to reciprocate left and right through the two sliding blocks 5. When the film passes through, the cutter 88 passes through the film, making the two sides of the film wavy, thereby avoiding the problems of ruffles and bursting ribs. At the same time, during the rotation of the eccentric frame 13, the eccentric frame 13 drives the transmission rod 15 to rotate, and the transmission rod 15 drives the disc 9 to rotate. The top of the disc 9 is inclined. When the low point of the top of the disc 9 contacts the rotating wheel 16, the front side of the entire support plate 1 swings downward, and point B of the cutter 88 contacts the film. When the high position of the disc 9 contacts the rotating wheel 16, the front side of the entire support plate 1 is too high, so that point A of the cutter 88 contacts the film. As the rotating wheel 16 continues to rotate, the entire support plate 1 continues to reciprocate, so that the contact position of the cutter 88 continues to move back and forth between A and B, making the original single-point contact side contact at multiple points, thereby increasing the service life of the cutter 88.

[0051] The above description is only the preferred embodiment of the present invention, which does not limit the protection scope of the present invention. For those skilled in the art, the present invention can be modified and varied in various ways. Within the spirit and principle of the present invention, any change, modification, replacement, integration and parameter change of these embodiments by conventional substitution or capable of achieving the same function without departing from the principle and spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. A bidirectional swing trimming device for soft high-viscosity self-adhesive protective film, characterized in that: It includes a lateral swing assembly, a driving assembly and a vertical swing assembly; The lateral swing assembly comprises a support plate (1), a movable rod (3), a slide rail (6) and a sliding block (5); the slide rail (6) is mounted on the top of the support plate (1); the sliding block (5) is slidably connected to the slide rail (6); the movable rod (3) is fixedly connected to the sliding block (5); and a cutter mounting box (8) is mounted on the bottom of the sliding block (5); The vertical swing assembly comprises a movable shaft (11), a bracket (14), a rotating wheel (16) and a disc (9), wherein the movable shaft (11) is mounted on both ends of the support plate (1), the rotating wheel (16) is mounted on the bottom end of the bracket (14), and the disc (9) is located below the rotating wheel (16); The driving assembly comprises a motor (2), an eccentric frame (13), a transmission rod (15), a connecting rod (12) and a transmission rod (15); the eccentric frame (13) is mounted on the output shaft of the motor (2); the transmission rod (15) is fixedly connected to the bottom of the eccentric frame (13); the transmission rod (15) is transmission-connected to the disc (9); and the eccentric frame (13) is transmission-connected to the movable rod (3) via the connecting rod (12).

2. A bidirectional swing trimming device for a soft high-viscosity self-adhesive protective film as claimed in claim 1, characterized in that: Both ends of the connecting rod (12) are provided with collars, one of the collars is sleeved on the eccentric frame (13), and the other collar is hinged to one end of the movable rod (3).

3. A bidirectional swing trimming device for a soft high-viscosity self-adhesive protective film as claimed in claim 2, characterized in that: The cross section of the movable rod (3) is rectangular, the top end of the sliding block (5) is threadedly connected with a fixed knob (4), and the bottom end of the fixed knob (4) is in contact with the movable rod (3).

4. A bidirectional swing trimming device for a soft high-viscosity self-adhesive protective film as claimed in claim 3, characterized in that: There are two groups of lateral swing components, which are symmetrically mounted at both ends of the support plate (1).

5. A bidirectional swing trimming device for a soft high-viscosity self-adhesive protective film as claimed in claim 4, characterized in that: The sliding block (5) comprises a cross bar and a vertical bar, the cross bar is slidably connected to the slide rail (6), a mounting groove (7) is provided on the side of the vertical bar, and the cutter mounting box (8) is fixedly connected to the mounting groove (7).

6. A bidirectional swing trimming device for a soft high-viscosity self-adhesive protective film as claimed in claim 5, characterized in that: A rectangular groove (10) is provided on one side of the support plate (1), the transmission rod (15) passes through the rectangular groove (10), the disc (9) is located below the rectangular groove (10), the bracket (14) is slidably connected to the rectangular groove (10), a fixing bolt (17) is threadedly connected to the front side of the support plate (1), the end of the fixing bolt (17) abuts against the bracket (14), and the upper surface of the disc (9) is arranged to be inclined.

7. A bidirectional swing trimming device for a soft high-viscosity self-adhesive protective film according to claim 6, characterized in that: The cutter installation box (8) comprises a box body (81), a fixing screw (82), a fixing rod (84), a fixing hole (85), a magnetic block (86), a handle (87), and a cutter (88). A slide groove (83) is provided at the top of the box body (81), and the slide groove (83) is in a long strip shape.

8. A bidirectional swing trimming device for a soft high-viscosity self-adhesive protective film as claimed in claim 7, characterized in that: The bottom end of the box body (81) is provided with a mounting groove (89), the interior of the mounting groove (89) is fixedly connected with a fixing rod (84), and the surface of the magnetic attraction block (86) is provided with a fixing hole (85).

9. A bidirectional swing trimming device for a soft high-viscosity self-adhesive protective film as claimed in claim 8, characterized in that: The surface of the cutter (88) is provided with a circular hole adapted to the fixing rod (84), the magnetic block (86) is magnetically connected to the mounting groove (89), and the fixing rod (84) is inserted through the circular hole and then engaged with the fixing hole (85).

10. A bidirectional swing trimming device for a soft high-viscosity self-adhesive protective film according to claim 9, characterized in that: The handle (87) is installed on the outside of the magnetic block (86), the installation slot (7) is opened at an angle of 45°, and the fixing screw (82) passes through the slide slot (83) and is threadedly connected to the installation slot (7).

Images