Fold-preventing spreading device for plastic film

A plastic film and anti-wrinkle technology, which is applied in the field of plastic film production, can solve the problems of plastic film wrinkles, the key limit of the heat-sealing area of the plastic film, and the inability of the plastic film to be spread up and down at the same time, so as to increase stability and increase The effect of heat sealing effect

Inactive Publication Date: 2019-09-06

安庆市明盛塑业有限公司

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AI-Extracted Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the present invention provides an anti-wrinkle flattening device for plastic films, which can solve the problem that the existing plastic films cannot be flattened up and down simultaneously when the existing plastic films are heat-sealed, and there will be wrinkles between the plastic films, which cannot be flattene...

Method used

The outer end of described support plate 43 is connected with compression frame 43a by the mode of sliding, and the right end of compression frame 43a is installed on the right side of support plate 43 by compression spring 43b, and compression frame 43a can The plastic film to be heat-sealed is emphatically pressed, further increasing the heat-sealing effect of the plastic film.

The upper and lower ends of the flattened support 42 are all distributed with a guide post 44, two guide posts 44 are arranged symmetrically, the right end of the guide post 44 is installed on the flattened support 42 by a hinge, the left end of each guide post 44 All are installed with a flattening connecting pulley 45 through the hinge, and two flattening rollers 47 are symmetrically distributed up and down on the left side of the flattening connecting pulley 45, and each flattening roller 47 is all installed on the flattening connecting rod 46 by a roller connecting column 46. On the left side of the puller 45, a flattening spring 48 is installed between the middle part of the guide column 44 and the flattening support 42, and the left side of the flattenin...

Abstract

The invention relates to a fold-preventing spreading device for a plastic film. The fold-preventing spreading device comprises a supporting frame and a spreading device. The spreading device is installed on the left side face of the right end of the supporting frame. The spreading device comprises a spreading air cylinder, a pressing support, a supporting plate, a guide pillar, a spreading connecting plate, a wheel connecting pillar, a spreading wheel and a spreading spring. The spreading device can be used for evenly spreading the plastic film so that the plastic film can be subjected to thehot sealing action flatly. The outer end of the supporting plate is connected with a pressing frame in a sliding manner. The right end of the pressing frame is installed on the right side face of thesupporting plate through a pressing spring. The pressing frame can press the plastic film needing to be subjected to hot sealing in a stressed manner, and the hot sealing effect of the plastic film isfurther improved. By means of the fold-preventing spreading device for the plastic film, the problems that when an existing plastic film is subjected to hot sealing, spreading cannot be conducted atthe upper portion and the lower portion of the plastic film at the same time, folds can occur on the plastic film, and the hot sealing area of the plastic film cannot be limited in a stressed manner can be solved.

Application Domain

Bag making operationsPaper-making +2

Technology Topic

Thin membranePlastic film +2

Image

Examples

Experimental program(1)

Example Embodiment

[0018] In order to make it easy to understand the technical means, creation features, achieved goals and effects of the present invention, the present invention will be further described below with reference to the specific figures. It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict.

[0019] like Figure 1 to Figure 2 As shown, an anti-wrinkle flattening device for a plastic film includes a support frame 1 and a flattening device 4, and a flattening device 4 is installed on the left side of the right end of the supporting frame 1; the flattening device 4 It includes a flattening cylinder 41, a flattening bracket 42, a support plate 43, a guide column 44, a flattening pulley 45, a roller connecting column 46, a flattening roller 47 and a flattening spring 48. The bottom of the flattening cylinder 41 is installed on the support frame On the left side of the right end of 1, a flattening bracket 42 is installed on the top of the flattening cylinder 41, the flattening bracket 42 is a T-shaped structure, and a support plate 43 is installed on the left side of the flattening bracket 42. The size is larger than the size of the heat sealing groove set on the flat plate 2;

[0020] - A guide column 44 is distributed at the upper and lower ends of the flattening bracket 42. The two guiding columns 44 are arranged symmetrically. The right end of the guiding column 44 is mounted on the flattening bracket 42 through a hinge. A flattening pulley 45 is installed, and two flattening rollers 47 are symmetrically distributed up and down on the left side of the flattening even pulley 45. On the left side, a flattening spring 48 is installed between the middle part of the guide column 44 and the flattening bracket 42, and a flattening plate is arranged on the left side of the flattening device 4, and a plastic film is locked on the flattening plate. The device 4 can evenly flatten the plastic film, so that the plastic film can be flat and heat-sealed. The structure formed with the roller column 46 can increase the stability of the flattening roller 47 when it is in contact with the flattening plate, and continue to extend the flattening cylinder 41. The flattening roller 47 can flatten the plastic film from the middle to the outside, preventing the appearance of the plastic film. For wrinkles, when the support plate 43 is in contact with the outer flat plate, the plastic film can be flattened, and then the plastic film is heat-sealed by the heat sealing machine on the left side of the flat plate.

[0021] The left end of the guide column 44 is inclined outward, and a positive position spring 49 is installed between the left end of the guide column 44 and the flat pulley 45, and the positive position spring 49 is maintained at a specific angle when the guide column 44 has no external force. .

[0022] The left end of the roller connecting column 46 is arranged inclined outward, and the inclined arrangement of the roller connecting column 46 can increase the stability between the flattening roller 47 and the flattening plate.

[0023] The flattening lever 45 is provided with a leveling rod 45a on the left side of the middle part. The leveling rod 45a is arranged obliquely, and the leveling rod 45a can smooth the plastic film.

[0024] The left end of the leveling rod 45a and the left end of the flattening roller 47 are located in the same vertical plane.

[0025] The outer end of the support plate 43 is connected with a pressing frame 43a in a sliding manner, and the right end of the pressing frame 43a is installed on the right side of the supporting plate 43 by a pressing spring 43b. The sealed plastic film is heavily compressed, which further increases the heat sealing effect of the plastic film.

[0026] The structural features, working principles and control methods of the above-mentioned flattening cylinder 41 belong to the prior art.

[0027] When working, first lock the plastic film that needs to be heat-sealed on the outer flat plate. The middle of the flat plate is provided with a heat-sealing groove, and the flattening cylinder 41 is controlled to perform elongation movement, so that the flattening roller 47 is pressed against the flat plate. On the right side, the triangular structure composed of the flattening roller 47 and the roller connecting column 46 can increase the stability of the flattening roller 47 in contact with the flattening plate, and then continue to extend the flattening cylinder 41, and the guide column 44 is under the action of the hinge. Its left end can be rotated outward, and the structure composed of the flattening roller 47 and the roller connecting column 46 can always be attached to the flattening plate, so that the flattening roller 47 can flatten the plastic film from the middle to the outside, preventing the plastic film in the heat-sealing area. The film is wrinkled, and when the support plate 43 is in contact with the right side of the flat plate, the pressing frame 43a can compress the plastic film at the outer end of the heat-sealing groove on the flat plate, which further increases the heat-sealing effect of the plastic film. The plastic film is then heat sealed by the heat sealer on the left side of the flat plate.

[0028] The invention realizes the function of evenly flattening the plastic film before heat-sealing it, and solves the problem that the existing plastic film cannot be flattened up and down at the same time when the existing plastic film is heat-sealed, wrinkles will appear between the plastic films, and the plastic film cannot be flattened. The key limitation of the heat-sealing area of the plastic film has achieved the goal.

[0029] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention, without departing from the spirit and scope of the present invention, the present invention will also There are various changes and modifications which fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

PUM

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