Protective film material rolling device

Abstract

The utility model discloses a protective film material rolling device which comprises roll shaft frames arranged on the two sides at intervals. Elastic rollers which are arranged up and down are rotationally connected between the roller shaft frames, the elastic rollers are driven to rotate through driving motors installed on the roller shaft frames, and a plurality of limiting rod grooves are formed in the elastic rollers; the protective film material rolling device further comprises a film pressing mechanism, the film pressing mechanism comprises film pressing frames arranged on the two sides at intervals, a plurality of film pressing rods are installed between the film pressing frames, and the film pressing rods penetrate through the limiting rod grooves. The film pressing mechanism further comprises an air cylinder structure for driving the film pressing rod to ascend and descend, and the touch pressure of the film pressing rod is adjusted through the air cylinder structure. The air cylinder structure comprises lifting frames fixedly connected to the ends of the film pressing frames respectively, and air cylinders for driving the lifting frames to ascend and descend are installed on the roller shaft frames. According to the device structure, the technical defect that the conveying stability is not high due to the fact that the thin film is prone to floating in the thin film rolling conveying process is overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of protective film processing, and particularly relates to a roller feeding device for protective film materials. Background Art

[0002] A protective film material is a film material that exhibits protective properties. Most of them are composite film materials, that is, composite layer structures. The protective film materials are mostly made of materials such as PVC. During the production process, the composite film materials are often formed by compounding and processing film materials with different properties, such as hot-pressing the films together after hot pressing.

[0003] During the production and processing of protective film materials, the transportation of film materials is an important link in production. Specifically, in the existing production process, the roller body is used to frictionally contact and press on the film material, and the frictional force is used to realize the roller feeding of the protective film. However, for film materials that are very soft (mostly inner films), during the roller feeding process, due to the adhesion force between the film and the roller body, the film material is likely to float up a certain displacement following the roller body during roller feeding. As a result, during the transportation process, the transmission posture of the film changes. Once the transmission posture of the film changes, due to the long-distance transmission of the film, under the chain reaction, the film material is severely offset.

[0004] Moreover, it is very difficult to correct the posture of film materials with high flexibility.

[0005] However, since the film material floats up due to roller pressing, and the film material pressed between the roller bodies cannot lower its posture to avoid the film material maintaining a horizontal and low posture transmission after roller pressing and conveying. Therefore, during the production process, the transmission stability is often not high due to the floating of the film material after roller pressing and conveying. During the production process, only when it is found in time that the transmission trajectory is incorrect, the machine is immediately stopped to correct the film posture and then continue the transmission.

[0006] Obviously, if this technical problem is not solved, it will inevitably cause defects such as low smoothness and low efficiency of film transportation during the production process. Summary of the Utility Model

[0007] Based on the above background, the purpose of the utility model is to provide a roller feeding device for protective film materials.

[0008] To achieve the above purposes, the utility model adopts the following technical solutions:

[0009] A roller feeding device for protective film materials, including roller shaft frames arranged at intervals on both sides;

[0010] An elastic roller is rotatably connected between the roller shaft frames and is arranged vertically. The elastic roller is respectively driven to rotate by a driving motor installed on the roller shaft frame. During the film transmission process, the film material is conveyed by the roller pressing of the elastic roller;

[0011] A plurality of limiting rod grooves are formed in the elastic roller;

[0012] The protective film material roller feeding device further includes a film pressing mechanism. The film pressing mechanism includes film pressing frames arranged at intervals on both sides. A plurality of film pressing rods are installed between the film pressing frames, and the film pressing rods penetrate between the limiting rod grooves;

[0013] When the film is rolled and conveyed between the elastic rollers, the film pressing rods press against the top of the film;

[0014] The film pressing mechanism further includes a cylinder structure for driving the film pressing rods to move up and down, and the contact pressure of the film pressing rods is adjusted through the cylinder structure;

[0015] The cylinder structure includes lifting frames respectively fixedly connected to the end positions of the film pressing frames, and a cylinder for driving the lifting frames to move up and down is installed on the roller shaft frame.

[0016] Preferably, the film pressing rods are threadedly connected between the film pressing frames.

[0017] Preferably, a material pressing roller structure is installed at the left end of the film pressing rod.

[0018] Preferably, the material pressing roller structure includes a cylindrical seat fixedly connected to the end position of the film pressing rod. A roller mounting opening is formed in the cylindrical seat, and the material pressing roller structure further includes a material pressing roller rotatably connected in the roller mounting opening.

[0019] Preferably, the lifting frame includes a vertical portion fixedly connected to the top position of the film pressing frame. The vertical portion is integrally formed with a bent portion, and the piston rod of the cylinder is installed on the bent portion.

[0020] Preferably, cylinders are respectively installed on the right top portions of the roller shaft frames. The piston rods of the cylinders are fixedly connected with mounting screws, the mounting screws are fastened on the bent portions, and a pair of nuts for locking at the top and bottom positions of the bent portions are threadedly connected to the mounting screws.

[0021] Preferably, vertical sliding rods slidably connected to the bent portions are respectively fixedly connected to the left top portions of the roller shaft frames.

[0022] Preferably, limiting shafts are respectively rotatably connected to the left and right sides of the roller shaft frame;

[0023] The film material is inserted and limited from the bottom of the limiting shaft and then penetrates between the elastic rollers.

[0024] Preferably, the elastic roller includes a roller body and a rubber sleeve sleeved on the roller body, and the limiting rod grooves are formed in the rubber sleeve.

[0025] The utility model has the following beneficial effects:

[0026] 1. The protective film material feeding device further includes a film pressing mechanism. Specifically, the film pressing mechanism includes film pressing frames arranged at intervals on both sides, and a number of film pressing rods are installed between the film pressing frames. The film pressing rods penetrate between the limit rod grooves. Since the film pressing rods are limited between the limit rod grooves, during the rotation of the elastic roller, the film pressing rods remain stationary. When the film is fed by rolling between the elastic rollers, the film pressing rods touch the top of the film. In this way, during the process of feeding the film material by rolling with the elastic roller, specifically, the elastic roller squeezes the top and bottom of the film material, and at the same time, the parallelly arranged film pressing rods touch the top of the film material to prevent the film material from being lifted and floating. By this means, during the rolling and feeding process of the film material, it is always fed in a low posture, avoiding defects such as unstable transmission and deviation caused by floating.

[0027] 2. Through the cylinder structure, during the working process, since the thickness of the film material is relatively small, it is easy for the film pressing rods not to fully touch the film material. Therefore, the cylinder is used to drive the film pressing rods to touch synchronously. Specifically, when the cylinder is opened, under the drive of the cylinder, all the film pressing rods descend to squeeze the film material. Under the extrusion of the film material, on the one hand, the defect of easy floating is effectively avoided. Secondly, since the film material is pressed down, the contact pressure between the film material and the elastic roller increases. Therefore, during the rotation and rolling transportation, the film material can be fed fully and smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0029] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present invention;

[0030] Figure 2 It is a schematic diagram of the structure of the elastic roller mounting roller shaft frame in the embodiment of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the cylinder structure in the embodiment of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of the pressure roller structure in the embodiment of the present invention;

[0033] Figure 5 For the embodiment of the present invention Figure 1 is the top view.

[0034] The realization, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0038] Embodiment 1

[0039] As Figures 1-5 shown, a film protective material roller feeding device includes roller shaft frames 1 spaced apart on both sides;

[0040] An elastic roller 32 arranged up and down is rotatably connected between the roller shaft frames 1. The structure of the elastic roller 32 for roller pressing and feeding is the same as the existing one. The elastic roller 32 includes a roller body and a rubber sleeve sleeved on the roller body.

[0041] At the same time, connecting shafts are installed at the front and rear ends of the roller body. The connecting shafts are connected to the output shaft of the driving motor 31 and the rotating shaft on one side through a flange structure 311. Correspondingly, bearings for rotatably connecting the output shaft and the rotating shaft are installed on the roller shaft frame 1.

[0042] When the film is roller pressed and conveyed between the elastic rubber sleeves, the elastic rollers 32 at the upper and lower positions rotate to apply frictional power to the film material to achieve conveyance.

[0043] To prevent the friction material from adhering to the rubber sleeve, which may cause the rubber sleeve to lift the film material during the roller conveying process, the above-mentioned protective film material roller conveying device further includes a film pressing mechanism. The film pressing mechanism includes film pressing frames 41 spaced apart on both sides. A number of film pressing rods 42 are installed between the film pressing frames 41 (specifically, the film pressing rods 42 are threadedly connected between the film pressing frames 41 and protrude from the elastic roller 32 by a certain distance on the left side). The film pressing rods 42 pass through between the limiting rod grooves 321.

[0044] Since the film pressing rods 42 are limited between the limiting rod grooves 321, during the rotation of the elastic roller 32, the film pressing rods 42 remain stationary. When the film is roller conveyed between the elastic rollers 32, the film pressing rods 42 press against the top of the film.

[0045] In this way, during the roller conveying process of the film material by the elastic roller 32, specifically, the elastic roller 32 presses against the top and bottom of the film material. At the same time, the parallel arranged film pressing rods 42 press against the top of the film material to prevent the film material from being lifted and floating.

[0046] In this way, during the roller conveying process of the film material, the film material is always conveyed in a low posture, avoiding defects such as unstable transmission and deviation of the film material after floating.

[0047] Embodiment 2

[0048] As Figures 1-5 shown, on the basis of the structure of Embodiment 1, the above-mentioned film pressing mechanism further includes a cylinder structure for driving the film pressing rod 42 to lift and lower, and the contact pressure of the film pressing rod 42 is adjusted through the cylinder structure.

[0049] Specifically, the cylinder structure includes lifting frames 43 respectively fixedly connected to the end positions of the film pressing frames 41 (shape: the lifting frames 43 include a vertical part fixedly connected to the top position of the film pressing frames 41, and the vertical part is integrally formed with a bent part). A cylinder 44 for driving the lifting frame 43 to lift and lower is installed on the roller shaft frame 1 (specifically, cylinders 44 are installed on the right top of the roller shaft frame 1, and the piston rod of each cylinder 44 is installed on the bent part. The specific installation method is: the piston rod of the cylinder 44 is fixedly connected with an installation screw 441, the installation screw 441 is fastened on the bent part, and a pair of nuts for locking at the top and bottom positions of the bent part are threadedly connected to the installation screw 441).

[0050] During the working process, due to the relatively small thickness of the thin film material, it is easy that the film pressing rod 42 fails to fully press on the thin film material. Therefore, the film pressing rod 42 is driven to synchronously press by means of the air cylinder 44. Specifically, the air cylinder 44 is opened. Driven by the air cylinder 44, all the film pressing rods 42 descend to press the thin film material. Under the extrusion, on the one hand, the defect that it is easy to float up is effectively avoided. Secondly, since the thin film material is pressed down, the contact pressure between the thin film material and the elastic roller 32 increases. Therefore, when the rotating roller presses and conveys, the thin film material can be conveyed fully and smoothly.

[0051] Meanwhile, the left top parts of the above-mentioned roller shaft frame 1 are respectively fixedly connected with vertical sliding rods 45 that are slidably connected to the bent parts. During the lifting process of the lifting frame 43 driven by the air cylinder 44, the vertically slidably arranged vertical sliding rods 45 are used to increase the smoothness of the lifting.

[0052] Embodiment 3

[0053] As Figures 1-5 shown, on the basis of the structure of Embodiment 2 in this embodiment, a material pressing roller structure is installed at the left end of the above-mentioned film pressing rod 42. The material pressing roller structure includes a cylindrical seat 5 fixedly connected to the end position of the film pressing rod 42. A roller mounting opening is provided on the cylindrical seat 5. The material pressing roller structure further includes a material pressing roller 51 rotatably connected in the roller mounting opening.

[0054] The thin film conveyed by roller pressing is pressed on the material pressing roller 51 through the material pressing roller 51, so as to keep the thin film having a certain tension and realize smooth transmission.

[0055] Meanwhile, limiting shafts 2 are respectively rotatably connected to the left and right sides of the roller shaft frame 1 (similarly, bearings for rotatably connecting the limiting shafts are installed on the roller shaft frame 1); the film material is inserted and limited from the bottom of the limiting shafts 2 and then passes through between the elastic rollers 32.

[0056] In this way, the thin film material is tensioned in the same way, ensuring that the thin film material maintains a high tension force before being fed into the elastic roller 32 and after being output from the elastic roller 32, and realizing smooth transmission.

[0057] Certainly, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the essence of the present invention should also fall within the protection scope of the present invention.

Claims

1. A roll feeding device for a protective film material, characterized in that, It includes roller racks arranged at intervals on both sides; An elastic roller arranged vertically is rotatably connected between the roller racks. The elastic rollers are respectively driven to rotate by driving motors installed on the roller racks. During the film transmission process, the film material is conveyed by rolling pressure of the elastic rollers; A number of limiting rod grooves are formed on the elastic roller; The protective film material conveying device further includes a film pressing mechanism. The film pressing mechanism includes film pressing frames arranged at intervals on both sides. A number of film pressing rods are installed between the film pressing frames, and the film pressing rods penetrate between the limiting rod grooves; When the film is conveyed by rolling pressure between the elastic rollers, the film pressing rod touches the top of the film; The film pressing mechanism further includes a cylinder structure for driving the film pressing rod to lift, and the contact pressure of the film pressing rod is adjusted by the cylinder structure; The cylinder structure includes lifting frames respectively fixedly connected to the end positions of the film pressing frames, and a cylinder for driving the lifting frames to lift is installed on the roller rack; 2. The roll feeding device for the protective film material according to claim 1, wherein The film pressing rod is threadedly connected between the film pressing frames; 3. The roll feeding device for the protective film material according to claim 1, characterized in that, A material pressing roller structure is installed at the left end of the film pressing rod; 4. The roll feeding device for the protective film material according to claim 3, wherein The material pressing roller structure includes a cylindrical seat fixedly connected to the end position of the film pressing rod. A roller mounting opening is formed on the cylindrical seat. The material pressing roller structure further includes a material pressing roller rotatably connected in the roller mounting opening; 5. The roll feeding device for the protective film material according to claim 1, wherein The lifting frame includes a vertical part fixedly connected to the top position of the film pressing frame. The vertical part is integrally formed with a bent part, and the piston rod of the cylinder is installed on the bent part; 6. The roll feeding device for the protective film material according to claim 5, wherein, Cylinders are respectively installed on the right tops of the roller racks. The piston rods of the cylinders are fixedly connected with mounting screws, the mounting screws are fastened on the bent parts, and a pair of nuts for locking at the top and bottom positions of the bent parts are threadedly connected to the mounting screws; 7. The roll feeding device for the protective film material according to claim 6, characterized in that, Vertical sliding rods slidably connected to the bent parts are respectively fixedly connected to the left tops of the roller racks; 8. The roll feeding device for the protective film material according to claim 1, wherein Limit shafts are respectively rotatably connected to the left and right sides of the roller rack; The film material is inserted through the bottom of the limit shaft for limiting and then penetrates between the elastic rollers; 9. The roll feeding device for the protective film material according to claim 1, wherein, The elastic roller includes a roller body and a rubber sleeve sleeved on the roller body, and the limiting rod grooves are formed on the rubber sleeve.

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