Unwinding device for plastic film product processing

Abstract

The utility model discloses an unreeling device for processing plastic film products, which comprises two gantry vertical frames which are vertically arranged and parallel to each other, a device cross frame is transversely and fixedly connected between the two gantry vertical frames, and the upper parts and the lower parts of the two sides of the front end surface of the front gantry vertical frame are respectively and fixedly connected with a first connecting ring and a second connecting ring. Relates to the technical field of plastic film product processing. According to the unwinding device for plastic film product processing, the two lap joint transverse frames and the two telescopic air cylinders are arranged, and the telescopic ends of the two telescopic air cylinders are connected with the outer surfaces of the two lap joint transverse frames correspondingly, so that when the telescopic air cylinders contract, the outer ends of the two lap joint transverse frames can rotate with a first rotating shaft as the center; and when the heights of the outer ends of the two lap joint transverse frames are adjusted to proper positions, the materials can be placed, otherwise, the height of the lap joint transverse frames can be reduced, and inconvenience cannot be generated when the materials with normal sizes are placed.

Description

Technical Field

[0001] This utility model relates to the field of plastic film product processing technology, and in particular to an unwinding device for processing plastic film products. Background Technology

[0002] Plastic film manufacturing refers to the production of films used for agricultural coverings, industrial, commercial, and daily-use packaging. With China's economic development and the adjustment of its rural industrial structure, the market demand for plastic film from various industries in China is constantly rising. China's plastic film production accounts for approximately 20% of the total output of plastic products, making it one of the fastest-growing categories in terms of production volume.

[0003] In the processing of various plastic film products, unwinding devices are essential equipment. However, the unwinding structure of current unwinding devices is often fixed. Some plastic film products form a disc with a large outer diameter on the roll. If the height of the unwinding structure cannot be adjusted, the bottom of the plastic film product may touch the ground after it is placed on the unwinding device. On the other hand, if the unwinding device is set too high, it will be inconvenient to feed the material.

[0004] Therefore, how to solve the problem of fixed structure of general unwinding equipment, which may cause the bottom of plastic film products to contact the ground after being placed on the unwinding equipment, and how to make the unwinding equipment too high will make the feeding process inconvenient, are technical problems that the industry urgently needs to solve. Utility Model Content

[0005] The main purpose of this utility model is to provide an unwinding device for processing plastic film products, which aims to solve the problem that the fixed structure of general unwinding equipment may cause the bottom of the plastic film product to contact the ground after it is placed on the unwinding equipment, while setting the unwinding equipment too high will make it inconvenient to feed the material.

[0006] This utility model proposes an unwinding device for processing plastic film products, including two vertically arranged and parallel gantry frames. A device crossbar is horizontally fixedly connected between the two gantry frames. The upper and lower parts of the front surface of the front gantry frame are respectively fixedly connected to the upper and lower parts. A first connecting ring and a second connecting ring are horizontally rotatably connected between the two first connecting rings and the two second connecting rings.

[0007] Both ends of the outer surface of the first rotating shaft are fixedly connected to overlapping crossbars. A horizontally rotatable air shaft is detachably installed between the front ends of the two overlapping crossbars. Both ends of the outer surface of the second rotating shaft are fixedly connected to connecting blocks. The other ends of the two connecting blocks are fixedly connected to telescopic cylinders. The movable ends of the two telescopic cylinders are respectively hinged to the middle of the outer surface of the two overlapping crossbars.

[0008] Preferably, the front ends of the upper surfaces of the two overlapping crossbeams are vertically provided with mounting grooves, and the two side surfaces of the front ends of the two overlapping crossbeams and the lower part of the mounting grooves are laterally rotatably connected with support rings whose outer surfaces extend into the outline of the mounting grooves. The air shaft is detachably and rotatably mounted to the front ends of the two overlapping crossbeams through the two mounting grooves and the multiple support rings.

[0009] Preferably, a U-shaped mounting base is fixedly connected to the bottom of the front end of one of the overlapping cross frames, a driven gear is fixedly connected to one end of the outer surface of the air shaft, and a driving gear adapted to the driven gear is rotatably connected inside the mounting base. When the air shaft is installed between two overlapping cross frames, the driving gear and the driven gear mesh with each other.

[0010] Preferably, a motor is laterally fixedly connected to the outer surface of the mounting base, and the output shaft of the motor rotatably passes through the mounting base and is fixedly connected to one end of the drive gear.

[0011] Preferably, multiple device frames are fixedly connected to both sides of the upper surface of the device frame, and multiple guide rollers are rotatably connected between the multiple device frames on both sides.

[0012] Preferably, the mounting base is fixedly connected to one of the overlapping crossbars by a plurality of reinforcing ribs.

[0013] This invention, by setting up two overlapping crossbeams and two telescopic cylinders, allows the device to be used by placing the air-expanding shaft with wound material between the two overlapping crossbeams, followed by unwinding. If the material wound on the air-expanding shaft is large and has a large outer diameter, the overlapping crossbeams can be raised by controlling the extension and retraction of the two telescopic cylinders. Since the extension and retraction ends of the two telescopic cylinders respectively intersect with the outer surfaces of the two overlapping crossbeams, when the telescopic cylinders retract, the outer ends of the two overlapping crossbeams will rotate around the first pivot. Once the height of the outer ends of the two overlapping crossbeams is adjusted to a suitable position, the material can be placed. Conversely, the height can be lowered, thus avoiding inconvenience when placing materials of normal size. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the air shaft placement structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the air shaft driven structure of this utility model.

[0017] In the diagram: 1. Gantry frame, 2. Device crossbar, 3. Device frame, 4. First rotating shaft, 5. Overlapping crossbar, 6. Mounting slot, 7. Support ring, 8. Second rotating shaft, 9. Telescopic cylinder, 10. Air shaft, 11. Driven gear, 12. Mounting base, 13. Motor, 14. Drive gear, 15. Reinforcing rib.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0020] Reference Figure 1-3 An embodiment of the present invention is proposed, a unwinding device for processing plastic film products, including two vertically arranged and parallel gantry frames 1, a device cross frame 2 is horizontally fixedly connected between the two gantry frames 1, a first connecting ring and a second connecting ring are respectively fixedly connected to the upper and lower parts of the front surface of the front gantry frame 1, and a first rotating shaft 4 and a second rotating shaft 8 are respectively horizontally rotatably connected between the two first connecting rings and the two second connecting rings.

[0021] Both ends of the outer surface of the first rotating shaft 4 are fixedly connected to overlapping crossbars 5. A horizontally rotatable air shaft 10 is detachably installed between the front ends of the two overlapping crossbars 5. Both ends of the outer surface of the second rotating shaft 8 are fixedly connected to connecting blocks. The other ends of the two connecting blocks are fixedly connected to telescopic cylinders 9. The movable ends of the two telescopic cylinders 9 are respectively hinged to the middle of the outer surface of the two overlapping crossbars 5.

[0022] When using this device, the air shaft 10 with the wound material can be placed between two overlapping crossbeams 5, and then the unwinding operation can be carried out. If there is a lot of material wound on the air shaft 10 and the outer diameter is large, the overlapping crossbeams 5 can be lifted upward by controlling the extension and retraction of the two telescopic cylinders 9. Since the extension and retraction ends of the two telescopic cylinders 9 are respectively connected to the outer surfaces of the two overlapping crossbeams 5, when the telescopic cylinders 9 retract, the outer ends of the two overlapping crossbeams 5 will rotate around the first rotating shaft 4. When the height of the outer ends of the two overlapping crossbeams 5 is adjusted to a suitable position, the material can be placed. Conversely, the height can also be lowered, so that there will be no inconvenience when placing materials of normal size.

[0023] Furthermore, the front ends of the upper surfaces of the two overlapping crossbeams 5 are vertically provided with mounting grooves 6, and the two sides of the front ends of the two overlapping crossbeams 5 and the lower part of the mounting grooves 6 are laterally rotatably connected with support rings 7 whose outer surfaces extend into the contour of the mounting grooves 6. The air shaft 10 is detachably and rotatably mounted on the front ends of the two overlapping crossbeams 5 through the two mounting grooves 6 and the multiple support rings 7.

[0024] The air shaft 10 can be directly placed in the mounting slots 6 on the two overlapping crossbars 5. After placement, the two ends of the air shaft 10 can be limited by the support rings 7 while ensuring that it can rotate smoothly laterally.

[0025] A U-shaped mounting base 12 is fixedly connected to the bottom of the front end of an overlapping cross frame 5. A driven gear 11 is fixedly connected to one end of the outer surface of the air shaft 10. The drive gear 14, which is adapted to the driven gear 11, is rotatably connected to the inside of the mounting base 12. When the air shaft 10 is installed between two overlapping cross frames 5, the drive gear 14 and the driven gear 11 mesh with each other.

[0026] A motor 13 is horizontally fixedly connected to the outer surface of the mounting base 12. The output shaft of the motor 13 rotatably passes through the mounting base 12 and is fixedly connected to one end of the drive gear 14.

[0027] After the air shaft 10 is installed on the two overlapping crossbeams 5, the driven gear 11 on one end surface will contact and mesh with the driving gear 14. Then, after the motor 14 is started, its output shaft rotates and drives the driving gear 14 to rotate, which in turn drives the driven gear 11 that meshes with it to rotate, thereby driving the air shaft 10 to rotate for unwinding.

[0028] Furthermore, multiple device frames 3 are fixedly connected to both sides of the upper surface of the device frame 2, and multiple guide rollers are rotatably connected between the multiple device frames 3 on both sides.

[0029] Guide rollers are used to guide unwound plastic film products to ensure they are always under tension. This is existing technology and will not be described in detail again.

[0030] Furthermore, multiple reinforcing ribs 15 are fixedly connected between the mounting base 12 and an overlapping crossbeam 5.

[0031] The reinforcing rib 15 can enhance the connection stability between the mounting base 12 and the overlapping crossbeam 5.

[0032] When using this device, the air shaft 10 with the wound material can be placed between two overlapping crossbeams 5, and then the unwinding operation can be carried out. If there is a lot of material wound on the air shaft 10 and the outer diameter is large, the overlapping crossbeams 5 can be lifted upward by controlling the extension and retraction of the two telescopic cylinders 9. Since the extension and retraction ends of the two telescopic cylinders 9 are respectively connected to the outer surfaces of the two overlapping crossbeams 5, when the telescopic cylinders 9 retract, the outer ends of the two overlapping crossbeams 5 will rotate around the first rotating shaft 4. When the height of the outer ends of the two overlapping crossbeams 5 is adjusted to a suitable position, the material can be placed. Conversely, the height can also be lowered, so that there will be no inconvenience when placing materials of normal size.

[0033] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An unwinding device for processing plastic film products, characterized in that, It includes two vertically arranged and parallel gantry frames (1), and a device crossbar (2) is horizontally fixedly connected between the two gantry frames (1). The upper and lower parts of the front end surface of the front gantry frame (1) are respectively fixedly connected to a first connecting ring and a second connecting ring. The two first connecting rings and the two second connecting rings are respectively horizontally rotatably connected to a first rotating shaft (4) and a second rotating shaft (8). Both ends of the outer surface of the first rotating shaft (4) are fixedly connected to overlapping crossbeams (5). A horizontally rotatable air shaft (10) is detachably installed between the front ends of the two overlapping crossbeams (5). Both ends of the outer surface of the second rotating shaft (8) are fixedly connected to connecting blocks. The other ends of the two connecting blocks are fixedly connected to telescopic cylinders (9). The movable ends of the two telescopic cylinders (9) are respectively hinged to the middle of the outer surface of the two overlapping crossbeams (5).

2. The unwinding device for processing plastic film products according to claim 1, characterized in that, The front ends of the upper surfaces of the two overlapping crossbeams (5) are vertically provided with mounting grooves (6). The two sides of the front ends of the two overlapping crossbeams (5) and the lower part of the mounting grooves (6) are laterally rotatably connected with support rings (7) whose outer surfaces extend into the outline of the mounting grooves (6). The air shaft (10) is detachably and rotatably mounted on the front ends of the two overlapping crossbeams (5) through the two mounting grooves (6) and the multiple support rings (7).

3. The unwinding device for processing plastic film products according to claim 1, characterized in that, A U-shaped mounting base (12) is fixedly connected to the bottom of the front end of one of the overlapping cross frames (5). A driven gear (11) is fixedly connected to one end of the outer surface of the air shaft (10). A driving gear (14) that is adapted to the driven gear (11) is rotatably connected to the inside of the mounting base (12). When the air shaft (10) is installed between two overlapping cross frames (5), the driving gear (14) and the driven gear (11) mesh with each other.

4. The unwinding device for processing plastic film products according to claim 3, characterized in that, A motor (13) is horizontally fixedly connected to the outer surface of the mounting base (12). The output shaft of the motor (13) rotatably passes through the mounting base (12) and is fixedly connected to one end of the drive gear (14).

5. The unwinding device for processing plastic film products according to claim 1, characterized in that, Multiple device frames (3) are fixedly connected to both sides of the upper surface of the device frame (2), and multiple guide rollers are rotatably connected between the multiple device frames (3) on both sides.

6. The unwinding device for processing plastic film products according to claim 3, characterized in that, The mounting base (12) is fixedly connected to one of the overlapping crossbars (5) by a plurality of reinforcing ribs (15).

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