Plastic film flattening device

Abstract

The utility model relates to the technical field of plastic film processing, and discloses a plastic film flattening device which comprises a bottom plate, a front conveying roller and a rear conveying roller are arranged on the two sides of the top of the bottom plate respectively, and a mounting plate which can ascend and descend and is of an inverted-L-shaped structure is arranged over the bottom plate. The surface of the mounting plate is provided with two conveying belts which are bilaterally symmetrical and opposite in conveying direction, the surfaces of the two conveying belts are fixedly connected with a plurality of mounting seats which are distributed at equal intervals, and each mounting seat is provided with a rolling ball. The position of the mounting plate can descend, so that the rolling balls on the conveying belt make contact with the surface of a plastic film, the plastic film is pressed downwards to a certain degree, and after the rolling balls on the conveying belt make contact with the plastic film, the rolling balls can move in the conveying direction of the conveying belt, so that the plastic film is conveyed to the conveying belt. And the rolling balls on the two conveying belts can continuously smoothen the two sides of the plastic film outwards, so that the problem that the surface of the plastic film is wrinkled during rolling is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic film processing, in particular to a plastic film flattening device. Background Art

[0002] Plastic film is a thin and flexible plastic material, usually made of polymers, which is widely used in food packaging, agricultural covering, medical use, building materials, electronic product protection, industrial use and other fields.

[0003] Plastic film is rolled up during production and processing, which can greatly reduce its volume and make it easier to transport and store. The rolled film takes up less space, which can save storage space and reduce transportation costs.

[0004] Plastic film is prone to wrinkles during production, which will cause the surface of the film to be uneven, which will affect the winding and cause the film to curl unevenly during the winding process. Therefore, it is necessary to design a plastic film flattening device to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to provide a plastic film flattening device to solve the technical problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic film flattening device, including a base plate, with front conveying rollers and rear conveying rollers on both sides of the top of the base plate respectively, and a mounting plate that can be raised and lowered and has an inverted L-shaped structure is arranged directly above the base plate, and the surface of the mounting plate has two conveyor belts that are symmetrical on the left and right and have opposite transmission directions, and the surfaces of the two conveyor belts are fixedly connected with a plurality of mounting seats distributed at equal intervals, and each mounting seat has a rolling ball.

[0007] Preferably, the surface of the mounting plate is rotatably connected to four rotating shafts via bearings, a transmission roller is fixedly sleeved on each rotating shaft, and each conveyor belt is respectively wound around two corresponding transmission rollers.

[0008] Preferably, two left-right symmetrical mounting blocks are fixedly connected to one side of the mounting plate, a rotating rod is rotatably connected between the two mounting blocks via a bearing, two left-right symmetrical active bevel gears are fixedly sleeved on the rotating rod, one side of the corresponding two rotating shafts passes through the mounting plate and is fixedly connected to a driven bevel gear meshing with the corresponding active bevel gear, and a driving component for driving the rotating rod to rotate is provided on the mounting plate.

[0009] Preferably, the driving assembly includes a servo motor fixedly mounted on the mounting plate, a synchronous wheel is fixedly mounted on the end of the output shaft of the servo motor and one side of the rotating rod, and a synchronous belt is wound between the two synchronous wheels through the tooth grooves.

[0010] Preferably, a fixing frame with an inverted concave structure is fixedly connected to the top of the base plate, and two fixing frames with piston rods facing downwards are fixedly inserted on the top of the fixing frame, and the piston rod ends of the two fixing frames are fixedly connected to the top of the mounting plate.

[0011] Preferably, a mounting groove having an internal structure of a 2 / 3 spherical structure is provided on the top of the mounting seat, and the rolling ball is movably inserted into the mounting groove.

[0012] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0013] The utility model can lower the position of the mounting plate itself so that the rolling balls on the conveyor belt can contact the surface of the plastic film and press the plastic film downward to a certain extent. After the rolling balls on the conveyor belt contact the plastic film, the rolling balls will move along the transmission direction of the conveyor belt, so that the rolling balls on the two conveyor belts can continuously smooth the two sides of the plastic film outward to avoid the problem of wrinkles on the surface of the plastic film when it is rolled up. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is another three-dimensional structural schematic diagram of the utility model;

[0016] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0017] Figure 4 It is a partial structural schematic diagram of the utility model;

[0018] In the figure: 1. bottom plate; 2. front conveyor roller; 3. rear conveyor roller; 4. mounting plate; 5. conveyor belt; 6. mounting seat; 7. rolling ball; 8. rotating shaft; 9. transmission roller; 10. mounting block; 11. rotating rod; 12. driving bevel gear; 13. driven bevel gear; 14. servo motor; 15. synchronous wheel; 16. synchronous belt; 17. fixing bracket; 18. servo electric cylinder. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] Obviously, many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0021] See also Figure 1-4 The utility model provides a plastic film flattening device, including a bottom plate 1, with a front conveying roller 2 and a rear conveying roller 3 on both sides of the top of the bottom plate 1 respectively, and a mounting plate 4 that can be lifted and lowered and is in an inverted L-shaped structure is arranged directly above the bottom plate 1, and the surface of the mounting plate 4 has two conveyor belts 5 that are symmetrical and have opposite transmission directions, and the surfaces of the two conveyor belts 5 are fixedly connected with a plurality of mounting seats 6 distributed at equal intervals, and each mounting seat 6 has a rolling ball 7. Through such a design, the plastic film can be transmitted through the front conveying roller 2 and the rear conveying roller 3, and the position of the mounting plate 4 itself can be lowered, so that the rolling balls 7 on the conveyor belt 5 contact with the surface of the plastic film and press the plastic film down to a certain extent. After the rolling balls 7 on the conveyor belt 5 contact with the plastic film, since the rolling balls 7 will move along the transmission direction of the conveyor belt 5, the rolling balls 7 on the two conveyor belts 5 can continuously smooth the two sides of the plastic film outwards to avoid the problem of wrinkles on the surface of the plastic film when it is rolled up.

[0022] The specific connection method between the two conveyor belts 5 and the mounting plate 4 is as follows: four rotating shafts 8 are rotatably connected to the surface of the mounting plate 4 through bearings, each rotating shaft 8 is fixedly sleeved with a transmission roller 9, and each conveyor belt 5 is respectively wound around two corresponding transmission rollers 9.

[0023] In order to make the transmission directions of the two conveyor belts 5 opposite, in some embodiments, it is proposed that two left-right symmetrical mounting blocks 10 are fixedly connected to one side of the mounting plate 4, and a rotating rod 11 is rotatably connected between the two mounting blocks 10 through a bearing. Two left-right symmetrical active bevel gears 12 are fixedly sleeved on the rotating rod 11. One side of the corresponding two rotating shafts 8 passes through the mounting plate 4 and is fixedly connected with a driven bevel gear 13 meshing with the corresponding active bevel gear 12. A driving component for driving the rotating rod 11 to rotate is provided on the mounting plate 4. When the rotating rod 11 rotates, it will drive the two active bevel gears 12 to rotate. Since the two active bevel gears 12 are symmetrically distributed, the rotation directions of the two driven bevel gears 13 driven by the teeth are opposite. After the driven bevel gear 13 drives the corresponding rotating shaft 8 and the transmission roller 9 to rotate, the two conveyor belts 5 can transmit the mounting seat 6 and the ball 7 on their surfaces in opposite directions.

[0024] Specifically, the driving assembly includes a servo motor 14 fixedly mounted on the mounting plate 4, and a synchronous wheel 15 is fixedly mounted on the end of the output shaft of the servo motor 14 and one side of the rotating rod 11, and a synchronous belt 16 is wound between the two synchronous wheels 15 through the tooth grooves. When the output shaft of the servo motor 14 rotates, it will drive one of the synchronous wheels 15 to rotate, and the synchronous wheel 15 can drive the other synchronous wheel 15 and the rotating rod 11 to rotate synchronously through the cooperation of the synchronous belt 16.

[0025] The specific method for lifting the mounting plate 4 is as follows: the top of the base plate 1 is fixedly connected to a fixing frame 17 with an inverted concave structure, and the top of the fixing frame 17 is fixedly inserted with two fixing frames 17 with piston rods facing downwards, and the piston rod ends of the two fixing frames 17 are fixedly connected to the top of the mounting plate 4. When the piston rods of the two servo electric cylinders 18 are extended and retracted, the mounting plate 4 will move up and down to adjust the height position of the two rows of balls 7 at the bottom.

[0026] See also Figure 3 A mounting groove with an internal structure of 2 / 3 spherical structure is opened on the top of the mounting seat 6, and the ball 7 is movably inserted into the mounting groove, so that the ball 7 can be installed on the mounting seat 6.

[0027] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0028] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0029] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A plastic film flattening device, comprising a bottom plate (1), with a front conveying roller (2) and a rear conveying roller (3) on both sides of the top of the bottom plate (1), characterized in that: A mounting plate (4) which can be raised and lowered and is in an inverted L-shaped structure is arranged directly above the bottom plate (1); the surface of the mounting plate (4) has two conveyor belts (5) which are symmetrical and have opposite transmission directions; the surfaces of the two conveyor belts (5) are fixedly connected to a plurality of mounting seats (6) which are distributed at equal intervals; each mounting seat (6) has a rolling ball (7).

2. A plastic film flattening device according to claim 1, characterized in that: The surface of the mounting plate (4) is rotatably connected to four rotating shafts (8) via bearings, each rotating shaft (8) is fixedly sleeved with a transmission roller (9), and each conveyor belt (5) is respectively wound around two corresponding transmission rollers (9).

3. A plastic film flattening device according to claim 2, characterized in that: Two left-right symmetrical mounting blocks (10) are fixedly connected to one side of the mounting plate (4); a rotating rod (11) is rotatably connected between the two mounting blocks (10) via a bearing; two left-right symmetrical active bevel gears (12) are fixedly sleeved on the rotating rod (11); one side of the corresponding two rotating shafts (8) both penetrates the mounting plate (4) and is fixedly connected to a driven bevel gear (13) meshing with the corresponding active bevel gear (12); and a driving assembly for driving the rotating rod (11) to rotate is arranged on the mounting plate (4).

4. A plastic film flattening device according to claim 3, characterized in that: The driving assembly comprises a servo motor (14) fixedly mounted on a mounting plate (4), a synchronous wheel (15) being fixedly mounted on the end of the output shaft of the servo motor (14) and one side of the rotating rod (11), and a synchronous belt (16) being wound between the two synchronous wheels (15) via tooth grooves.

5. The plastic film flattening device according to claim 1, characterized in that: A fixing frame (17) in an inverted concave structure is fixedly connected to the top of the bottom plate (1), and two fixing frames (17) with piston rods facing downwards are fixedly inserted on the top of the fixing frame (17), and the piston rod ends of the two fixing frames (17) are fixedly connected to the top of the mounting plate (4).

6. A plastic film flattening device according to claim 1, characterized in that: The top of the mounting seat (6) is provided with a mounting groove with an internal structure of a 2 / 3 spherical structure, and the rolling ball (7) is movably inserted into the mounting groove.

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