Plastic extrusion and lamination composite unit

Abstract

The utility model provides a plastic extrusion and lamination composite unit which comprises a cooling bracket, an edge cutting bracket, a conveying roller, a mounting plate, a two-way screw rod, a fixed cylinder, a first notch, a movable cylinder, a first boss and a cutting knife, the two-way screw rod is arranged, and the two sections of threads of the two-way screw rod are respectively connected with one moving cylinder, so that the threads of the two-way screw rod can be rotated before edge cutting is carried out on a cooled laminated film, the two moving cylinders are close to each other or separated from each other, the distance between the two cutting knives is adjusted, and the edge cutting quality of the laminated film is improved; according to the edge cutting device, the situation that when the cutting knives of an edge cutting device in an existing laminated film composite unit are adjusted, a rolling shaft for conveying laminated films can affect workers is eliminated, operation is convenient, meanwhile, the two cutting knives can be adjusted at the same time, and therefore the adjusting time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of laminating and compounding machine units, in particular to a plastic extrusion laminating and compounding machine unit. Background Art

[0002] Laminating is a composite material that is made by coating plastic particles on the surface of paper through a cast film machine. The main feature of this composite material is that it is oil-proof, waterproof and heat-sealed. When processing the laminating, it is usually necessary to use an auxiliary cooling and trimming device to trim the laminating. When the laminating is cooling and trimming, the laminating will first pass through multiple cooling rollers for cooling and at the same time, the laminating is transported. Then, under the action of the trimming device, the edge of the fabric is trimmed, and the waste is collected by a collector.

[0003] The trimming device in the existing laminating and laminating unit generally uses two cutting knives to trim the cooled laminating film. The cutting knives are generally installed on a fixed cylinder, and the position of the cutting knives is adjusted by screwing bolts. Since the cutting knives are generally above the laminating film, when adjusting the cutting knives, the rollers that transport the laminating film affect the workers, making the operation inconvenient. At the same time, the cutting knives need to be adjusted twice separately, which is time-consuming. Utility Model Content

[0004] The purpose of the present invention is to design a plastic extrusion coating compounding unit to solve the problems raised by the background technology. In order to achieve the above purpose, the present invention provides the following technical solutions: including a trimming bracket installed on the output end of the cooling bracket, the trimming bracket is provided with a conveying roller for conveying the coating, the top of the trimming bracket is fixed with a mounting plate, the end of the bidirectional screw is rotatably connected to the mounting plate, the mounting plate is connected to a fixed cylinder, the fixed cylinder is provided with a first notch, the fixed cylinder is coaxial with the bidirectional screw, a moving cylinder is respectively threadedly connected to a unidirectional thread of the bidirectional screw, the moving cylinder is located inside the fixed cylinder, the moving cylinder is provided with a first boss that cooperates with the first notch, the first boss is fixed to the moving block, the moving block is slidably connected to the fixed cylinder, and a cutting knife for trimming is installed at the bottom of the moving block.

[0005] Furthermore, a first sleeve is provided on the mounting plate and is loosely matched with the fixing cylinder. A fastening bolt is threadedly connected to the first sleeve, and an end of the fastening bolt is tightly attached to the outer circle of the fixing cylinder.

[0006] Furthermore, one end of the first notch passing through the fixing tube is an open end, and a second boss cooperating with the first notch is provided inside the first sleeve cooperating with the open end.

[0007] Furthermore, a scale bar is provided on the outer circumferential surface of the fixing cylinder.

[0008] Furthermore, the moving block is connected to the first boss via a connecting piece.

[0009] Furthermore, a first rotating hand wheel is fixedly connected to the bidirectional screw that passes through the mounting plate.

[0010] Furthermore, the bottom of the movable block is fixed with a limit block, the lower part of the limit block is rotatably connected to the cutting knife, the cutting knife is fixed with a rotating rod, the rotating rod is provided with a straight slot, and a shift rod connected to the mounting plate through a driving mechanism and movable up and down passes through the straight slot.

[0011] Furthermore, the driving mechanism includes a guide rod fixedly connected to one of the mounting plates and a screw rod rotatably connected to the other mounting plate. One end of the shift rod is threadedly connected to the screw rod, and the other end of the shift rod is slidably connected to the guide rod.

[0012] Furthermore, a second rotating hand wheel is provided on the top of the screw.

[0013] Furthermore, a first support rod is provided on the limit block, a second support rod is provided on the rotating rod, and the first support rod is connected to the second support rod through a spring.

[0014] Furthermore, the first support rod and the second support rod are provided with a limiting rod for preventing the spring from falling off.

[0015] Furthermore, a limiting plate is provided on the limiting block, and the limiting plate is in contact with the side surface of the cutting knife in the vertical state.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the present invention is provided with a bidirectional screw, and a movable cylinder is respectively connected to the two threads of the bidirectional screw. Therefore, before trimming the cooled coating film, the bidirectional screw thread can be rotated to achieve the two movable cylinders approaching or separating from each other, thereby achieving the adjustment of the distance between the two cutting knives and improving the trimming quality of the coating film; the situation in which the trimming device in the existing coating composite unit affects the staff when adjusting the cutting knife is eliminated, the operation is convenient and the two cutting knives can be adjusted at the same time, thereby reducing the adjustment time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a partially enlarged schematic diagram of the utility model;

[0020] Figure 3 It is a partial cross-sectional schematic diagram of the present utility model.

[0021] Among them: 1. Laminating film; 2. Cooling roller; 3. Cooling bracket; 4. Moving block; 5. Mounting plate; 6. Cutting knife; 7. Fixed cylinder; 8. First rotating hand wheel; 9. Second rotating hand wheel; 10. Guide rod; 11. Push rod; 12. Fastening bolt; 13. First sleeve; 14. Second boss; 15. Straight slot; 16. Second support rod; 17. Rotating rod; 18. Limit block; 19. Spring; 20. Driving mechanism; 21. Bidirectional screw; 22. Moving cylinder; 23. Scale bar; 24. Connecting piece; 25. First slot; 26. Limit plate; 27. Screw. DETAILED DESCRIPTION

[0022] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0023] Example: Please refer to Figure 1-3, a plastic extrusion laminating compound unit, including a trimming bracket installed on the output end of the cooling bracket 3, a conveying roller for conveying the laminating film 1 is provided on the trimming bracket, a mounting plate 5 is fixed to the top of the trimming bracket, the end of the bidirectional screw 21 is rotatably connected to the mounting plate 5, a fixed cylinder 7 is connected to the mounting plate 5, a first notch 25 is provided on the fixed cylinder 7, the fixed cylinder 7 is coaxial with the bidirectional screw 21, a moving cylinder 22 is respectively threadedly connected to a unidirectional thread of the bidirectional screw 21, the moving cylinder 22 is located inside the fixed cylinder 7, a first boss is provided on the moving cylinder 22 that cooperates with the first notch 25, the first boss is fixed to the moving block 4, the moving block 4 is slidably connected to the fixed cylinder 7, and a cutting knife 6 for trimming is installed at the bottom of the moving block 4, wherein the cooling bracket 3 is provided with a The cooling roller 2 of the coating 1 is a common cooling solution, which will not be described in detail here. The two sections of the thread of the bidirectional screw 21 have opposite rotation directions, and a moving cylinder 22 is connected to each section of the thread, and the two moving cylinders 22 are symmetrically distributed. Therefore, before trimming the cooled coating 1, the bidirectional screw 21 can be rotated to achieve the two moving cylinders 22 to approach or separate from each other, thereby adjusting the distance between the two cutting knives 6. At the same time, when rotating the bidirectional screw 21, the operator only needs to stand on one side of the mounting plate 5. Therefore, the present invention eliminates the situation in which the roller conveying the coating 1 affects the staff when adjusting the cutting knife 6 of the trimming device in the existing coating 1 composite unit. The operation is convenient and the two cutting knives 6 can be adjusted at the same time, thereby reducing the adjustment time.

[0024] In this embodiment, the mounting plate 5 is provided with a first sleeve 13 which is clearance-matched with the fixed cylinder 7, and a fastening bolt 12 is threadedly connected to the first sleeve 13. The end of the fastening bolt 12 is in close contact with the outer circle of the fixed cylinder 7, which is convenient for the disassembly and assembly of the fixed cylinder 7; and the first notch 25 passes through one end of the fixed cylinder 7 as an open end, which is convenient for the disassembly and assembly of the movable cylinder 22; and the inside of the first sleeve 13 which is matched with the open end is provided with a second boss 14 which is matched with the first notch 25, so as to prevent the first notch 25 from shrinking and deforming when the fastening bolt 12 is squeezed and fixed on the fixed cylinder 7, thereby ensuring the normal operation of the unit; the fixed cylinder A scale bar 23 is provided on the outer circumference of 7, which is convenient for observing the distance between the two cutting knives 6; the moving block 4 is connected to the first boss by a connecting piece 24, which simplifies the structure of the parts and reduces the cost of the unit; and the bidirectional screw 21 that passes through the mounting plate 5 is fixed with a first rotating handwheel 8 to facilitate the rotation of the bidirectional screw 21; in addition, the bottom of the moving block 4 is fixed with a limit block 18, and the lower part of the limit block 18 is rotatably connected to the cutting knife 6. The cutting knife 6 is fixed with a rotating rod 17, and the rotating rod 17 is provided with a straight notch 15. The lever 11 that is connected to the mounting plate 5 and can be moved up and down passes through the driving mechanism 20. The straight slot 15, when the lever 11 moves downward, it slides in the straight slot 15, thereby rotating the rotating rod 17, and then lifting the cutting knife 6, thereby preventing the cutting knife 6 from cutting the laminated film 1 during the process of adjusting the spacing; wherein, the driving mechanism 20 includes a guide rod 10 fixed to one mounting plate 5, a screw rod 27 rotatably connected to the other mounting plate 5, one end of the lever 11 is threadedly connected to the screw rod 27, and the other end of the lever 11 is slidably connected to the guide rod 10, and a second rotating hand wheel 9 is provided on the top of the screw rod 27; therefore, when the second rotating hand wheel 9 is rotated, the screw 27 will rotate The first support rod 16 is connected to the second support rod 16 by a spring 19, and the first support rod and the second support rod 16 are provided with a limit rod for preventing the spring 19 from falling off, thereby making the rotating rod 17 close to the lever 11, thereby preventing the cutting knife 6 from shaking; and a limit plate 26 is provided on the limit block 18, which is in contact with the side of the cutting knife 6 in the vertical state, which plays a limiting role on the cutting knife 6 and can remind the cutting knife 6 that it has been reset during the reset (cutting state) process.

[0025] Working principle: before trimming the cooled laminating film 1, first rotate the second rotating handwheel 9, the screw 27 will rotate, causing the lever 11 to move downward and slide in the straight slot 15, thereby rotating the rotating rod 17, and then lifting the cutting knife 6. Then the operator stands on one side of the mounting plate 5 and rotates the second rotating handwheel 9, thereby rotating the bidirectional screw 21, and realizing the mutual approach or separation of the two moving cylinders 22. When the cutting knife 6 is adjusted to the specified position, the second rotating handwheel 9 is rotated in the opposite direction, and the screw 27 is rotated in the opposite direction, causing the lever 11 to move upward and slide in the straight slot 15, thereby rotating the rotating rod 17, and then resetting the cutting knife 6, thereby completing the adjustment of the cutting knife 6; therefore, the present invention eliminates the situation in which the roller conveying the laminating film 1 affects the staff when adjusting the cutting knife 6 in the existing laminating film 1 composite unit. The operation is convenient and the two cutting knives 6 can be adjusted at the same time, thereby reducing the adjustment time.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "upper," "lower," "left," "right," "front," "rear," and similar expressions used herein are for illustrative purposes only.

[0027] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A plastic extrusion laminating machine unit, characterized by: The invention comprises a trimming bracket installed on the output end of the cooling bracket (3), the trimming bracket is provided with a conveying roller for conveying the laminating film (1), the top of the trimming bracket is fixed with a mounting plate (5), the end of the bidirectional screw (21) is rotatably connected to the mounting plate (5), the mounting plate (5) is connected to a fixed cylinder (7), the fixed cylinder (7) is provided with a first notch (25), the fixed cylinder (7) is coaxial with the bidirectional screw (21), a moving cylinder (22) is respectively threadedly connected to a unidirectional thread of the bidirectional screw (21), the moving cylinder (22) is located inside the fixed cylinder (7), the moving cylinder (22) is provided with a first boss that cooperates with the first notch (25), the first boss is fixed to the moving block (4), the moving block (4) is slidably connected to the fixed cylinder (7), and a cutting knife (6) for trimming is installed at the bottom of the moving block (4).

2. The plastic extrusion laminating machine unit according to claim 1, characterized in that: The mounting plate (5) is provided with a first sleeve (13) which is clearance-matched with the fixing cylinder (7); a fastening bolt (12) is threadedly connected to the first sleeve (13); and the end of the fastening bolt (12) is in close contact with the outer circle of the fixing cylinder (7).

3. The plastic extrusion laminating machine unit according to claim 2, characterized in that: One end of the first notch (25) passing through the fixed tube (7) is an open end, and a second boss (14) cooperating with the first notch (25) is provided inside the first sleeve (13) cooperating with the open end.

4. The plastic extrusion laminating machine unit according to claim 1, characterized in that: A scale bar (23) is provided on the outer circumferential surface of the fixed cylinder (7).

5. The plastic extrusion laminating machine unit according to claim 1, characterized in that: The moving block (4) is connected to the first boss via a connecting piece (24).

6. The plastic extrusion laminating machine unit according to claim 1, characterized in that: A first rotating hand wheel (8) is fixedly connected to the bidirectional screw (21) that passes through the mounting plate (5).

7. The plastic extrusion laminating machine unit according to claim 1, characterized in that: The bottom of the movable block (4) is fixedly connected to a limit block (18), the lower part of the limit block (18) is rotatably connected to the cutting knife (6), the cutting knife (6) is fixedly connected to a rotating rod (17), the rotating rod (17) is provided with a straight notch (15), and a shifting rod (11) connected to the mounting plate (5) through a driving mechanism (20) and movable up and down passes through the straight notch (15).

8. The plastic extrusion laminating machine unit according to claim 7, characterized in that: The driving mechanism (20) includes a guide rod (10) fixedly connected to one of the mounting plates (5), a screw rod (27) rotatably connected to the other mounting plate (5), one end of the shifting rod (11) is threadedly connected to the screw rod (27), and the other end of the shifting rod (11) is slidably connected to the guide rod (10).

9. The plastic extrusion laminating machine unit according to claim 8, characterized in that: A first support rod is provided on the limit block (18), a second support rod (16) is provided on the rotating rod (17), and the first support rod is connected to the second support rod (16) via a spring (19).

10. The plastic extrusion laminating machine unit according to claim 7, characterized in that: The limiting block (18) is provided with a limiting plate (26), and the limiting plate (26) is in contact with the side surface of the cutting knife (6) in a vertical state.

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