A kind of film feeding mechanism of film chartered plane
Technical field
The utility model relates to a kind of film chartered plane, relates in particular to a kind of film feeding mechanism of film chartered plane.
Background technology
At present, heat shrink films has substituted that carton is widely used in food, beverage and some need on the packing of the moistureproof product of preserving.The film chartered plane that is used for the heat shrink films packing mainly comprises feeding mechanism, film feeding mechanism, film cutting machine structure, film package mechanism, because the part that need cooperatively interact is more, occurs the memberane stress inequality in the packaging process sometimes, even disconnected film phenomenon occurs.
The utility model content
Technical problem to be solved in the utility model is: provide a kind of and can regulate the film feeding mechanism that keeps the constant film chartered plane of tensile force automatically.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of film feeding mechanism of film chartered plane, comprise film volume supporting seat, be arranged on the film volume on the film volume supporting seat, frame, frame is provided with biside plate, be provided with stretching device and some carrying rollers between the biside plate, described stretching device comprises two the fixed tensioning rollers on the same vertical line of being positioned at that are arranged between the side plate, be provided with the regulating tank of horizontal direction on the described framework lateral plate, regulating tank is between two fixed tensioning rollers, the described side plate outside is respectively equipped with slide rail in both sides up and down at regulating tank, slide rail is provided with sliding shoe, be provided with movable idler roller between two sliding shoes, one of them sliding shoe is provided with displacement sensor, be respectively equipped with the cylinder that drives sliding shoe on the biside plate, the air inlet pipe of cylinder is provided with solenoid regulated valve, is provided with one between the biside plate and is higher than the carrying roller that leads of going up that film is rolled up the top, also is provided with the carrying roller that leads between the biside plate.
Also comprise a standby film volume supporting seat, standby film volume supporting seat is provided with the film volume.
Be provided with between described film volume supporting seat and the standby film volume supporting seat and manually connect film device.
Pivot shaft on described film volume supporting seat and the standby film volume supporting seat is that gas is opened axle.
The beneficial effects of the utility model are: owing to be provided with movable idler roller between two sliding shoes, one of them sliding shoe is provided with displacement sensor, be respectively equipped with the cylinder that drives sliding shoe on the biside plate, the air inlet pipe of cylinder is provided with solenoid regulated valve, the electric signal that displacement sensor sends drives the size that solenoid regulated valve is regulated cylinder intake air quantity, thereby makes tensile force maintain setting value.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among Fig. 1: 1. film is rolled up supporting seat, 2. film volume, 3. frame, 4. side plate, 5. fixed tensioning roller, 6. regulating tank, 7. slide rail, 8. sliding shoe, 9. movable idler roller, 10. displacement sensor, 11. cylinders, 12. air inlet pipes, 13. solenoid regulated valve, the carrying roller that leads on 14., 15. times guiding carrying rollers, 16. standby film volume supporting seat, 17. films volume, 18. manually connect film device.
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.
As shown in Figure 1, a kind of film feeding mechanism of film chartered plane comprises film volume supporting seat 1, is arranged on film volume supporting seat 1 gas and opens the film volume 2 on the axle, standby film volume supporting seat 16, and the gas of standby film volume supporting seat 16 is opened axle and is provided with film volume 17 and frame 3.Frame 3 is provided with biside plate 4, be provided with stretching device and some carrying rollers between the biside plate 4, described stretching device comprises two the fixed tensioning rollers 5 on the same vertical line of being positioned at that are arranged between the side plate 4, the regulating tank 6 that is being provided with horizontal direction on described frame 3 side plates 4, regulating tank 6 is between two fixed tensioning rollers 5, described side plate 4 outsides both sides are respectively equipped with slide rail 7 at regulating tank about in the of 6, slide rail 7 is provided with sliding shoe 8, be provided with movable idler roller 9 between two sliding shoes 8, one of them sliding shoe 8 is provided with displacement sensor 10, be respectively equipped with the cylinder 11 that drives sliding shoe 8 on the biside plate 4, the air inlet pipe 12 of cylinder 11 is provided with solenoid regulated valve 13, be provided with one between the biside plate 4 and be higher than the carrying roller 14 that leads of going up that film is rolled up 2 tops, also be provided with the carrying roller 15 that leads between the biside plate 4.Be provided with between film volume supporting seat 1 and the standby film volume supporting seat 16 and manually connect film device 18.
Owing to be provided with movable idler roller 9 between two sliding shoes 8, one of them sliding shoe 8 is provided with displacement sensor 10, be respectively equipped with the cylinder 11 that drives sliding shoe 8 on the biside plate 4, the air inlet pipe 12 of cylinder 11 is provided with solenoid regulated valve 13, the electric signal that displacement sensor 10 sends drives solenoid regulated valve 13 and regulates the size of cylinder 11 suction quantity, thereby makes tensile force maintain setting value.