Edge trimming device for film production

Abstract

The utility model discloses an edge trimming device for thin film production, and relates to the technical field of thin film production. The device comprises a processing frame, one side of the inner wall of the processing frame is rotatably matched with a bidirectional lead screw, the bidirectional lead screw is in threaded fit with two cutting blocks, cutting grooves are formed in the close sides of the cutting blocks, the upper sides of the inner walls of the two cutting grooves are in sliding fit with telescopic rods, and the lower ends of the telescopic rods are fixedly connected with a U-shaped frame. A bearing rod is rotationally matched with the inner wall of the U-shaped frame, a lower pressing roller is fixedly connected to the bearing rod, an extension plate is fixedly connected to one side of the U-shaped frame, and a cleaning frame is fixedly connected to one side of the extension plate. According to the utility model, through the arrangement of the lower pressing roller, the bearing rod drives the cleaning rod to rotate, and then the cleaning rod drives the brush to rotate, so as to clean chips possibly existing on a film in the film cutting and shearing process, so that the cut and sheared chips are prevented from being wound, the product quality is prevented from being influenced, and the processing quality is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of film production, and in particular relates to an edge trimming device for film production. Background Art

[0002] The film of the prior art is a thin and soft transparent sheet. It is made of plastic, adhesive, rubber or other materials, wherein the plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, used for packaging and as a coating layer. Plastic packaging and plastic packaging products occupy an increasingly larger share in the market, especially composite plastic flexible packaging, which has been widely used in the fields of food, medicine, chemical industry, etc., among which food packaging accounts for the largest proportion, such as beverage packaging, quick-frozen food packaging, steamed food packaging, fast food packaging, etc. These products have brought great convenience to people's lives.

[0003] A Chinese patent with application number CN202220195186.0 discloses an edge trimming device for the production of new material films, including a support frame, a winding roller is rotatably connected to the inner side of the support frame, a mounting box is fixedly connected to the front end of the support frame, a drive motor is installed on the inner side of the mounting box, the output shaft of the drive motor is connected to the winding roller, a support rod is fixedly connected to the upper end of the support frame, a moving component is slidably connected to the upper end of the support rod, the moving component includes a slide bar, a fixing screw is threadedly connected to one side of the slide bar, a connecting plate is fixedly connected to the inner side of the slide bar, a cutting component is arranged at the lower end of the connecting plate, the cutting component includes a plastic clamping shell, a plastic clamping opening is opened at the front end of the plastic clamping shell, a blade is slidably connected to the inner side of the plastic clamping opening.

[0004] The above technical solution can realize the winding of the film. During the winding process, both sides of the film enter the clamping mouth and are trimmed by the blade. However, when the film is cut, the trimmed debris accumulates in the clamping mouth. When the equipment vibrates, the cut burrs may fall into the finished film. If the film is directly rolled up, debris will exist in the product, thus affecting the product quality.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an edge trimming device for film production.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0008] An edge trimming device for film production comprises a processing frame, one side of the inner wall of the processing frame is rotatably matched with a bidirectional screw rod, two cutting blocks are threadedly matched on the bidirectional screw rod, cutting grooves are provided on adjacent sides of the cutting blocks, shrinkage rods are slidably matched on the upper sides of the inner walls of the two cutting grooves, the lower end of the shrinkage rod is fixedly connected with a U-shaped frame, the inner wall of the U-shaped frame is rotatably matched with a bearing rod, the upper part of the bearing rod is fixedly connected with a lower pressure roller, one side of the U-shaped frame is fixedly connected with an extension plate, one side of the extension plate is fixedly connected with a cleaning frame, the inner wall of the cleaning frame is rotatably matched with a cleaning rod meshed with the bearing rod, and a brush is installed on the cleaning rod;

[0009] A straightening mechanism and a winding mechanism are sequentially arranged on the inner wall of the processing frame away from the bidirectional screw rod. A guide assembly is arranged inside the processing frame. Cutting knives are arranged on the lower sides of the inner walls of the two cutting grooves.

[0010] Optionally, in order to improve the quality after winding, the straightening mechanism includes a mounting plate fixedly connected to the lower side of the inner wall of the processing frame, a hand-tightening bolt threadedly engaged with one side of the mounting plate, an adjustment plate rotatably engaged with the upper end of the hand-tightening bolt, a straightening roller rotatably engaged with the inner wall of the adjustment plate, and a limiting rod fixedly connected to the lower side of the adjustment plate and slidingly engaged with the mounting plate.

[0011] Optionally, in order to roll up the plastic film, the rolling mechanism includes a rolling motor fixedly connected to one side of the processing frame, and a rolling roller installed at the output end of the rolling motor and located on the inner wall of the processing frame.

[0012] Optionally, in order to facilitate guiding the cutting block, the guide assembly includes a guide rod fixedly connected to the inner wall of the processing frame, and two guide openings are opened on one side of the cutting block and cooperate with the guide rod.

[0013] Optionally, in order to extrude the U-shaped frame and realize extrusion of the plastic film, a return spring fixedly connected to the upper side of the inner wall of the cutting groove is installed on the upper side of the U-shaped frame, and the return spring is sleeved on the retractable rod.

[0014] Optionally, in order to facilitate the disposal of debris adsorbed on the brush after cleaning, a drop-off opening is opened on the lower side of the two cutting grooves, and a trigger claw in contact with the brush is fixedly connected to the opposite side of the two cutting grooves.

[0015] Optionally, in order to facilitate the collection of cleaned debris, a convex groove is provided on the lower side of the two cutting blocks, and a storage box is slidably fitted on the inner wall of the convex groove.

[0016] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0017] 1. By setting the lower pressure roller, during the film cutting process, the cleaning rod is driven by the bearing rod to rotate, and then the cleaning rod drives the brush to rotate to clean the debris that may exist on the film, so as to avoid the cut debris being rolled up and affecting the quality of the product, thereby improving the processing quality.

[0018] 2. By setting up a straightening mechanism, the adjustment plate can be driven to move up and down by turning the hand-tightened bolt. During the movement, the limit rod slides on the winding motor to achieve limit, thereby adjusting the position of the straightening roller. The plastic film is squeezed by the straightening roller to straighten the plastic film, making the wound film tighter, so as to improve the quality of winding.

[0019] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of a cutting block according to an embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the top view of the processing frame of an embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of a three-dimensional cross-sectional structure of a cutting block according to an embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of a storage box according to an embodiment of the utility model;

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Processing frame; 2. Bidirectional screw rod; 3. Cutting block; 4. Cutting groove; 5. Retraction rod; 6. U-shaped frame; 7. Bearing rod; 9. Lower pressure roller; 10. Extension plate; 11. Cleaning frame; 12. Cleaning rod; 13. Brush; 14. Straightening mechanism; 141. Mounting plate; 142. Tightening bolt; 143. Adjustment plate; 144. Straightening roller; 145. Limit rod; 15. Winding mechanism; 151. Winding motor; 152. Winding roller; 16. Guide assembly; 161. Guide rod; 162. Guide port; 17. Cutting knife; 18. Reset spring; 19. Drop port; 20. Trigger claw; 21. Convex groove; 22. Storage box.

[0028] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0029] The utility model will now be described in further detail with reference to the accompanying drawings.

[0030] See also Figure 1-5 As shown, in this embodiment, an edge trimming device for film production is provided, including a processing frame 1, one side of the inner wall of the processing frame 1 is rotatably matched with a bidirectional screw rod 2, two cutting blocks 3 are threadedly matched on the bidirectional screw rod 2, and cutting grooves 4 are provided on the adjacent sides of the cutting blocks 3. The upper sides of the inner walls of the two cutting grooves 4 are slidably matched with contraction rods 5, the lower end of the contraction rod 5 is fixedly connected with a U-shaped frame 6, the inner wall of the U-shaped frame 6 is rotatably matched with a bearing rod 7, and the upper part of the bearing rod 7 is fixedly connected with a lower pressure roller 9, one side of the U-shaped frame 6 is fixedly connected with an extension plate 10, and one side of the extension plate 10 is fixedly connected with a cleaning frame 11, the inner wall of the cleaning frame 11 is rotatably matched with a cleaning rod 12 meshed with the bearing rod 7, and a brush 13 is installed on the cleaning rod 12;

[0031] One end of the cleaning rod 12 and one end of the bearing rod 7 are provided with meshing bevel gears, and when the lower pressure roller 9 rotates, the bearing rod 7 is driven to rotate, thereby driving the cleaning rod 12 to rotate;

[0032] A straightening mechanism 14 and a winding mechanism 15 are sequentially installed on the inner wall of the processing frame 1 away from the bidirectional screw rod 2 . A guide assembly 16 is installed inside the processing frame 1 . Cutting knives 17 are installed on the lower sides of the inner walls of the two cutting grooves 4 .

[0033] One aspect of the application of this embodiment is as follows: when in use, the distance between the two cutting blocks 3 can be adjusted by rotating the bidirectional screw rod 2, so as to be suitable for processing plastic films of different widths. When processing, firstly, the two ends of the film are placed under the lower pressure roller 9 and located inside the cutting groove 4, and the lower pressure roller 9 is squeezed to squeeze the plastic film by the action of the reset spring 18, and then the straightening mechanism 14 of the straightening structure is fixed to the winding mechanism 15 from the upper side, and the winding mechanism 15 is started to wind up. During the winding process, the straightening mechanism 14 is used to straighten the wound plastic film, thereby improving the compactness of the wound film and the winding quality;

[0034] During the winding process, the plastic film moves on the lower side of the lower pressure roller 9. During the movement, the cutting knife 17 contacts both sides of the plastic film to cut the burrs on both ends. During the cutting process, since the lower pressure roller 9 contacts the plastic film, the lower pressure roller 9 itself will rotate and drive the supporting rod 7 to rotate, and then the supporting rod 7 drives the cleaning rod 12 to rotate. During the rotation, the debris that may exist on the plastic film is cleaned to prevent the debris after cutting from falling on the film due to shaking or squeezing, thereby affecting the subsequent processing quality.

[0035] By setting the lower pressure roller 9, during the film cutting process, the cleaning rod 12 is driven to rotate by the supporting rod 7, and the cleaning rod 12 then drives the brush 13 to rotate, so as to clean the debris that may exist on the film, thereby preventing the cut debris from being rolled up and affecting the quality of the product, thereby improving the processing quality.

[0036] The straightening mechanism 14 of this embodiment includes a mounting plate 141 fixedly connected to the lower side of the inner wall of the processing frame 1, a hand-tightening bolt 142 threadedly engaged with one side of the mounting plate 141, an adjustment plate 143 rotatably engaged with the upper end of the hand-tightening bolt 142, a straightening roller 144 rotatably engaged with the inner wall of the adjustment plate 143, and a limiting rod 145 fixedly connected to the lower side of the adjustment plate 143 and slidably engaged with the mounting plate 141. The adjusting plate 143 is driven to move up and down by rotating the hand-tightening bolt 142. During the movement, the limiting rod 145 slides on the winding motor 151 to limit the position, thereby adjusting the position of the straightening roller 144. The straightening roller 144 squeezes the plastic film to straighten the plastic film, making the wound film tighter, so as to improve the quality of winding.

[0037] The winding mechanism 15 of this embodiment includes a winding motor 151 fixedly connected to one side of the processing frame 1, and a winding roller 152 installed at the output end of the winding motor 151 and located on the inner wall of the processing frame 1. The winding motor 151 is started to drive the winding roller 152 to rotate, so as to realize the winding of the plastic film. Its principle is the same as that in the prior art.

[0038] The guide assembly 16 of this embodiment includes a guide rod 161 fixedly connected to the inner wall of the processing frame 1, and a guide opening 162 opened on one side of the two cutting blocks 3 and matched with the guide rod 161. When the bidirectional screw 2 is rotated, the guide openings 162 on the two cutting blocks 3 move on the guide rod 161 to guide the two cutting blocks 3, thereby avoiding the situation where the cutting blocks 3 and the bidirectional screw 2 rotate in the same direction.

[0039] The upper side of the U-shaped frame 6 of this embodiment is equipped with a return spring 18 fixedly connected to the upper side of the inner wall of the cutting groove 4. The return spring 18 is sleeved on the shrink rod 5. When the plastic film is in the cutting groove 4, the U-shaped frame 6 is squeezed by the return spring 18, so that the pressing roller 9 squeezes the film.

[0040] The lower sides of the two cutting grooves 4 of this embodiment are provided with a drop-out opening 19, and the opposite sides of the two cutting grooves 4 are fixedly connected with a trigger claw 20 in contact with the brush 13. The lower sides of the two cutting blocks 3 are provided with a convex groove 21, and the inner wall of the convex groove 21 is slidably matched with a storage box 22. When the brush 13 rotates, the debris on the brush 13 is cleared by the trigger claw 20, and the cleared debris falls from the drop-out opening 19 into the storage box 22. The storage box 22 can be detached from the convex groove 21 by pulling it, so that the storage box 22 can be cleaned.

[0041] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. An edge trimming device for film production, characterized in that: The invention comprises: a processing frame (1), a bidirectional screw rod (2) is rotatably engaged on one side of the inner wall of the processing frame (1), two cutting blocks (3) are threadedly engaged on the bidirectional screw rod (2), cutting grooves (4) are provided on adjacent sides of the cutting blocks (3), contraction rods (5) are slidably engaged on the upper sides of the inner walls of the two cutting grooves (4), the lower end of the contraction rod (5) is fixedly connected to a U-shaped frame (6), the inner wall of the U-shaped frame (6) is rotatably engaged with a bearing rod (7), the upper part of the bearing rod (7) is fixedly connected to a lower pressure roller (9), one side of the U-shaped frame (6) is fixedly connected to an extension plate (10), one side of the extension plate (10) is fixedly connected to a cleaning frame (11), the inner wall of the cleaning frame (11) is rotatably engaged with a cleaning rod (12) meshing with the bearing rod (7), and a brush (13) is mounted on the cleaning rod (12); A straightening mechanism (14) and a winding mechanism (15) are sequentially installed on the side of the inner wall of the processing frame (1) away from the bidirectional screw rod (2), a guide assembly (16) is installed inside the processing frame (1), and cutting knives (17) are installed on the lower sides of the inner walls of the two cutting grooves (4).

2. An edge trimming device for film production according to claim 1, characterized in that: The straightening mechanism (14) comprises a mounting plate (141) fixedly connected to the lower side of the inner wall of the processing frame (1), a hand-tightening bolt (142) threadedly engaged with one side of the mounting plate (141), an adjustment plate (143) rotatably engaged with the upper end of the hand-tightening bolt (142), a straightening roller (144) rotatably engaged with the inner wall of the adjustment plate (143), and a limiting rod (145) fixedly connected to the lower side of the adjustment plate (143) and slidably engaged with the mounting plate (141).

3. The edge trimming device for film production according to claim 1, characterized in that: The winding mechanism (15) comprises a winding motor (151) fixedly connected to one side of the processing frame (1), and a winding roller (152) installed at the output end of the winding motor (151) and located on the inner wall of the processing frame (1).

4. The edge trimming device for film production according to claim 1, characterized in that: The guide assembly (16) comprises a guide rod (161) fixedly connected to the inner wall of the processing frame (1), and a guide opening (162) provided on one side of the two cutting blocks (3) and matched with the guide rod (161).

5. The edge trimming device for film production according to claim 1, characterized in that: A return spring (18) fixedly connected to the upper side of the inner wall of the cutting groove (4) is installed on the upper side of the U-shaped frame (6), and the return spring (18) is sleeved on the contraction rod (5).

6. The edge trimming device for film production according to claim 1, characterized in that: A drop-off opening (19) is provided on the lower side of the two cutting grooves (4), and a trigger claw (20) in contact with the brush (13) is fixedly connected to the opposite side of the two cutting grooves (4).

7. The edge trimming device for film production according to claim 1, characterized in that: The lower sides of the two cutting blocks (3) are provided with convex grooves (21), and the inner walls of the convex grooves (21) are slidably fitted with a storage box (22).

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