Film winding system

Abstract

A film winding system sequentially comprises a servo film rolling mechanism, an automatic film connecting mechanism, a film separating and conveying mechanism, a film caching and stretching mechanism and a film cutting and conveying mechanism in the material conveying direction. The film buffering and stretching mechanism comprises a base, a fixed transition roller set installed on the base, a swing arm rotationally connected with the base, a buffering air cylinder driving the swing arm to swing and a movable transition roller set installed on the swing arm, and the fixed transition roller set comprises a plurality of fixed rollers arranged at intervals. The movable transition roller set comprises a plurality of movable rollers arranged at intervals, and the fixed rollers and the movable rollers are arranged in a staggered mode. The film buffering and stretching mechanism has a film buffering function, and the larger the swinging angle of the swing arm is, the larger the storage amount of the film material is; and the film buffering and stretching mechanism can balance the conveying speed of the servo film rolling mechanism and the cut film, so that the film material can be stably conveyed and cut.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to a film winding system. Background Art

[0002] The film wrapping machine generally includes a film rolling mechanism, a film splicing mechanism and a film cutting mechanism. There is a lack of a buffer area between the film splicing mechanism and the film cutting mechanism. If the film unwinding of the film rolling mechanism cannot match the production speed of the production line, it is easy to cause the film material to be loose or tight, affecting the cutting effect of the film roll. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a film winding system with good film material conveying stability and high film cutting quality.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a film winding system, which includes a servo film roll mechanism, an automatic film splicing mechanism, a film separation conveying mechanism, a film buffer stretching mechanism and a film cutting conveying mechanism in sequence according to the material conveying direction; the film buffer stretching mechanism includes a base, a fixed transition roller group installed on the base, a swing arm rotatably connected to the base, a buffer cylinder driving the swing arm to swing, and a movable transition roller group installed on the swing arm, the fixed transition roller group includes a plurality of fixed rollers arranged at intervals, the movable transition roller group includes a plurality of movable rollers arranged at intervals, and the fixed rollers and the movable rollers are staggered. Principle of the utility model: the system film material sequentially goes through the steps of film feeding, hot film splicing switching, film separation, film buffering and film cutting conveying; wherein the film buffer stretching mechanism has the function of film buffering, the film material alternately bypasses the fixed roller and the movable roller in sequence, the path of the film material becomes longer, and a certain amount of film material can be stored, and the greater the swing angle of the swing arm, the greater the stock of the film material; the film buffer stretching mechanism can balance the speed of the servo film roll mechanism and the film cutting conveying, so that the film material can be smoothly conveyed and cut.

[0005] As an improvement, the servo film roll mechanism includes two unwinding units respectively arranged on both sides of the automatic film splicing mechanism, and the unwinding unit includes an inflatable shaft and a servo motor driving the inflatable shaft to rotate.

[0006] As an improvement, a tooth-shaped protrusion is provided on the base, and the fixed roller is installed on the tooth-shaped protrusion.

[0007] As an improvement, the swing arm is rotatably connected to the base via a rotating shaft, and an angle sensor is provided at one end of the rotating shaft.

[0008] As an improvement, the film cutting and conveying mechanism includes a film cutting component, a pressure roller film conveying component arranged on both sides of the film cutting component, and a belt film conveying component.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The film buffer stretching mechanism has the function of film buffering. The film material bypasses the fixed roller and the movable roller alternately in turn. The path of the film material becomes longer and a certain amount of film material can be stored. The greater the swing angle of the swing arm, the greater the inventory of film material. The film buffer stretching mechanism can balance the speed of the servo film roll mechanism and the film cutting conveying, so that the film material can be smoothly conveyed and cut. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a side schematic diagram of the utility model.

[0012] Figure 2 It is a three-dimensional diagram of the utility model.

[0013] Figure 3 Schematic diagram of the membrane buffer stretching mechanism. Implementation

[0014] The utility model will be further described below in conjunction with the accompanying drawings.

[0015] like Figure 1 , 2 As shown, a film winding system includes a servo film rolling mechanism 1, an automatic film splicing mechanism 2, a film separation and conveying mechanism 3, a film buffer stretching mechanism 4 and a film cutting and conveying mechanism 5 in sequence according to the material conveying direction.

[0016] like Figure 1 , 2 As shown, the servo film roll mechanism 1 includes two unwinding units 11 respectively arranged on both sides of the automatic film splicing mechanism 2, and the unwinding unit 11 includes an air shaft and a servo motor driving the air shaft to rotate. The film separation conveying mechanism 3 includes a film tensioning component 31, a film separation knife component 32, a first film separation adjustment component 33 and a second film separation adjustment component 34. Figure 3As shown, the film buffer stretching mechanism 4 includes a base 41, a fixed transition roller group installed on the base 41, a swing arm 42 rotatably connected to the base 41, a buffer cylinder 43 driving the swing arm 42 to swing, and a movable transition roller group installed on the swing arm 42; the fixed transition roller group includes a plurality of fixed rollers 412 arranged at intervals, and the movable transition roller group includes a plurality of movable rollers 421 arranged at intervals, and the fixed rollers 412 and the movable rollers 421 are staggered. The base 41 is provided with toothed protrusions 411, and the fixed rollers 412 are installed on the toothed protrusions 411. A groove is formed between adjacent toothed protrusions 411, and the end of the movable roller 421 can enter the groove to avoid interference between the base 41 and the movable roller 421; the swing arm 42 is rotatably connected to the base 41 through a rotating shaft 44, and an angle sensor is provided at one end of the rotating shaft 44. The angle sensor can measure the swing angle of the swing arm 42. The larger the angle, the larger the amount of film material 6 in the film buffer stretching mechanism 4. The film cutting and conveying mechanism 5 includes a film cutting component 51, a pressure roller film conveying component 52 and a belt film conveying component 53 arranged on both sides of the film cutting component 51. The pressure roller film conveying component 52 plays a role of stretching and conveying the film material 6, and the servo film rolling mechanism 1 plays a role of sending the film material 6 forward. After the film material 6 is cut, it is conveyed backward through the belt film conveying component 53.

[0017] Principle of the utility model: the system film material 6 goes through the steps of film feeding, hot film switching, film separation, film buffering and film cutting and conveying in sequence; wherein the film buffer stretching mechanism 4 has the function of film buffering, the film material 6 alternately bypasses the fixed roller 412 and the movable roller 421 in sequence, the path of the film material 6 becomes longer, and a certain amount of film material 6 can be stored, the greater the swing angle of the swing arm 42, the greater the stock of the film material 6; the film buffer stretching mechanism 4 can balance the speed of the servo film roll mechanism 1 and the film cutting conveying, so that the film material 6 can be smoothly conveyed and cut; after the servo motor of the servo film roll mechanism 1 sends the film material 6 forward, the swing arm 42 of the film buffer stretching mechanism 4 is subjected to the pulling force of rapid film feeding, the angle of the swing arm 42 decreases, the angle sensor on the swing arm 42 detects that the cached film material 6 is reduced, and the feedback is fed back to the servo motor of the film roll, and the rapid film feeding compensates the cached film amount of the film buffer stretching mechanism 4.

Claims

1. A film winding system, characterized in that: According to the material conveying direction, it includes a servo film roll mechanism, an automatic film splicing mechanism, a film separation conveying mechanism, a film buffer stretching mechanism and a film cutting conveying mechanism in sequence; the film buffer stretching mechanism includes a base, a fixed transition roller group installed on the base, a swing arm rotatably connected to the base, a cache cylinder driving the swing arm to swing, and a movable transition roller group installed on the swing arm, the fixed transition roller group includes a plurality of fixed rollers arranged at intervals, the movable transition roller group includes a plurality of movable rollers arranged at intervals, and the fixed rollers and the movable rollers are staggered.

2. A film winding system according to claim 1, characterized in that: The servo film roll mechanism comprises two unwinding units respectively arranged on both sides of the automatic film splicing mechanism, and the unwinding unit comprises an air shaft and a servo motor driving the air shaft to rotate.

3. A film winding system according to claim 1, characterized in that: The base is provided with a tooth-shaped protrusion, and the fixed roller is installed on the tooth-shaped protrusion.

4. A film winding system according to claim 1, characterized in that: The swing arm is rotatably connected to the base via a rotating shaft, and an angle sensor is provided at one end of the rotating shaft.

5. A film winding system according to claim 1, characterized in that: The film cutting and conveying mechanism comprises a film cutting component, a pressure roller film conveying component arranged on both sides of the film cutting component, and a belt film conveying component.

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