Stretching device for PE film processing

Abstract

The utility model provides a stretching device for PE (Poly Ethylene) film processing, which belongs to the field of PE film processing devices and comprises a mounting frame, a stretching component and a tensioning component, a chilling roller is rotationally mounted at the front end of the mounting frame, and a baffle is mounted on the surface of the mounting frame; according to the PE film tensioning device, a stretched PE film is wound around the bottom of the tensioning roller through the arranged tensioning assembly, the tensioning degree of the PE film of the tensioning roller is adjusted according to the stretching thickness of the PE film and the environment temperature, the rocking wheel is rotated to drive the adjusting rod to move up and down on the top of the installation base, the adjusting rod drives the sliding block to move up and down in the sliding groove, and therefore the tensioning roller is driven to move up and down; and an electric push rod is installed at the top of the tail end of the installation frame, and the electric push rod stretches and retracts to drive a cutter to get close to the PE film and cut off the PE film.

Description

Technical Field

[0001] The utility model relates to the field of PE film processing devices, in particular to a stretching device for PE film processing. Background Art

[0002] PE film is a polyethylene geomembrane plastic film made from polyethylene. Due to its low negative permeability coefficient, PE film has excellent anti-seepage and isolation properties. The uses of polyethylene film can be divided into two categories: one for packaging various items, and the other for agricultural production. Polyethylene film is used for packaging various items (food, light industry, textiles, chemicals, and various mechanical parts). Depending on the application and conditions, it can be made into soft, transparent, or various colors with certain air permeability, corrosion resistance, non-toxicity, waterproof, heat shrinkable, and printable thicknesses. Existing PE film production and processing stretching equipment directly rewinds the PE film after stretching it. During the rewinding process, the PE film gradually loses tension due to its own temperature drop, causing wrinkles in the film. Utility Model Content

[0003] The purpose of the present utility model is to provide a stretching device for PE film processing, so as to solve the problem proposed in the above background technology that the existing stretching equipment for PE film production and processing directly rewinds the PE film through a rewinding device after stretching the PE film. In this way, the PE film becomes loose in tension during the rewinding process due to the gradual decrease in its own temperature, resulting in wrinkles in the PE film during the rewinding process.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A stretching device for PE film processing, comprising: a mounting frame, a stretching assembly and a tensioning assembly;

[0005] Wherein: a chill roller is rotatably mounted on the front end of the mounting frame, and a baffle is mounted on the surface of the mounting frame;

[0006] The stretching assembly includes support bases mounted on both sides of the mounting frame, and a plurality of stretching rollers are mounted on the surface of the support base so as to rotate sequentially from top to bottom. Transmission gears are fixedly mounted on both ends of the stretching rollers, and two adjacent transmission gears are meshed and connected. A servo motor is fixedly mounted on one side of the bottom of the support base, and the output end of the servo motor is fixedly connected to one end of one of the stretching rollers.

[0007] The tensioning assembly includes a mounting seat fixedly mounted on both sides of the middle part of the mounting frame, a slide groove is provided on the top of the mounting seat, a slider is slidably mounted inside the slide groove, a tensioning roller is rotatably mounted on the surface of the slider, an adjusting rod is threadedly mounted on the top of the mounting seat, a rocker is mounted on the top of the adjusting rod, and the bottom end of the adjusting rod is rotatably mounted on the top of the slider.

[0008] As a preferred solution of the present invention: a support arm is installed at the tail end of the mounting frame, a winding roller is rotatably installed inside the support arm, a winding motor is fixedly installed on one side of the support arm, and the output end of the winding motor is fixedly connected to one end of the winding roller.

[0009] As a preferred solution of the present invention: a connecting rod is rotatably mounted on the top of the support arm, and a limiting plate is fixedly mounted on the surface of the connecting rod.

[0010] As a preferred solution of the present invention: an adjustment handle is installed at one end of the connecting rod.

[0011] As a preferred solution of the present invention: an electric push rod is installed on the top of the rear end of the mounting frame, and a cutter is installed on the telescopic end of the electric push rod.

[0012] As a preferred solution of the present invention: a control panel is fixedly installed on one side of the mounting frame, the servo motor, the winding motor and the electric push rod are all electrically connected to the control panel, and the control panel is electrically connected to an external power supply.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) A support base is installed on both sides of the mounting frame, and a plurality of stretching rollers are rotatably installed on the surface of the support base. After the PE film is wound in an S shape on the surface of the stretching roller, the servo motor is controlled to rotate to drive one of the stretching rollers to rotate. The stretching rollers are driven by gears that are meshed with each other at both ends, thereby stretching the PE film;

[0015] (2) The stretched PE film is passed around the bottom of the tensioning roller through the tensioning assembly, and the tension of the PE film of the tensioning roller is adjusted according to the stretched thickness of the PE film and the ambient temperature. The rocker is rotated to drive the adjusting rod to move up and down on the top of the mounting seat. The adjusting rod drives the slider to move up and down inside the slide groove, thereby driving the tensioning roller to move up and down, thereby achieving the tensioning of the PE film and avoiding the occurrence of wrinkles and overlaps in the PE film when it is rolled up. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the stretching component of the present utility model;

[0018] Figure 3 This is a schematic diagram of the tensioning assembly structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the limiting plate of the utility model.

[0020] In the figure: 1. Mounting frame; 2. Chilling roller; 3. Baffle; 4. Stretching assembly; 41. Support seat; 42. Stretching roller; 43. Transmission gear; 44. Servo motor; 5. Tensioning assembly; 51. Mounting seat; 52. Slide; 53. Slider; 54. Tensioning roller; 55. Adjustment rod; 56. Rocker; 6. Support arm; 7. Winding roller; 8. Winding motor; 9. Connecting rod; 10. Limit plate; 11. Adjustment handle; 12. Electric push rod; 13. Cutter; 14. Control panel. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 4 A stretching device for PE film processing includes: a mounting frame 1, a stretching assembly 4 and a tensioning assembly 5; a chill roller 2 is rotatably mounted on the front end of the mounting frame 1, and a baffle 3 is mounted on the surface of the mounting frame 1;

[0023] See also Figure 1 , Figure 2 The stretching assembly 4 includes a support base 41 installed on both sides of the mounting frame 1. A plurality of stretching rollers 42 are installed on the surface of the support base 41 so as to rotate from top to bottom. Transmission gears 43 are fixedly installed at both ends of the stretching rollers 42. Adjacent transmission gears 43 are meshed and connected. A servo motor 44 is fixedly installed on one side of the bottom of the support base 41. The output end of the servo motor 44 is fixedly connected to one end of one of the stretching rollers 42.

[0024] During specific use: support seats 41 are installed on both sides of the mounting frame 1, and multiple stretching rollers 42 are rotatably installed on the surface of the support seats 41. After the PE film is wound in an S shape on the surface of the stretching roller 42, the servo motor 44 is controlled to rotate to drive one of the stretching rollers 42 to rotate. The stretching rollers 42 are transmitted through transmission gears 43 that are meshed with each other at both ends, thereby stretching the PE film.

[0025] See also Figure 1 , Figure 3The tensioning assembly 5 includes a mounting base 51 fixedly mounted on both sides of the middle part of the mounting frame 1. A slide groove 52 is provided on the top of the mounting base 51. A slider 53 is slidably mounted inside the slide groove 52. A tensioning roller 54 is rotatably mounted on the surface of the slider 53. An adjusting rod 55 is threadedly mounted on the top of the mounting base 51. A rocker 56 is mounted on the top of the adjusting rod 55. The bottom end of the adjusting rod 55 is rotatably mounted on the top of the slider 53.

[0026] During specific use: the stretched PE film is passed around the bottom of the tensioning roller 54, and the tension of the PE film of the tensioning roller 54 is adjusted according to the stretched thickness of the PE film and the ambient temperature. The rocker 56 is rotated to drive the adjusting rod 55 to move up and down on the top of the mounting seat 51. The adjusting rod 55 drives the slider 53 to move up and down inside the slide groove 52, thereby driving the tensioning roller 54 to move up and down, thereby achieving tension on the PE film and avoiding wrinkles and overlaps of the PE film when it is rolled up.

[0027] See also Figure 1 , Figure 4 A support arm 6 is installed at the tail end of the mounting frame 1, and a winding roller 7 is rotatably installed inside the support arm 6. A winding motor 8 is fixedly installed on one side of the support arm 6, and the output end of the winding motor 8 is fixedly connected to one end of the winding roller 7. A connecting rod 9 is rotatably installed on the top of the support arm 6, and a limit plate 10 is fixedly installed on the surface of the connecting rod 9. An adjusting handle 11 is installed at one end of the connecting rod 9.

[0028] During specific use: a winding roller 7 is rotatably installed inside the support arm 6, and the winding motor 8 rotates to drive the winding roller 7 to reel the PE film. A connecting rod 9 is rotatably installed on the top of the support arm 6, and the connecting rod 9 is driven to rotate by rotating the adjustment handle 11. The rotation of the connecting rod 9 drives the limit plate 10 on the surface to approach the winding roller 7, which is convenient for limit adjustment according to the size of the winding.

[0029] See also Figure 1 An electric push rod 12 is installed on the top of the tail end of the mounting frame 1, and a cutter 13 is installed on the telescopic end of the electric push rod 12.

[0030] When in use, an electric push rod 12 is installed on the top of the tail end of the mounting frame 1. The electric push rod 12 is extended and retracted to drive the cutter 13 to approach the PE film and cut it.

[0031] See also Figure 1 A control panel 14 is fixedly mounted on one side of the mounting frame 1 , the servo motor 44 , the winding motor 8 and the electric push rod 12 are all electrically connected to the control panel 14 , and the control panel 14 is electrically connected to an external power supply.

[0032] In specific use: when the control panel 14 is connected to the external power supply, the servo motor 44, the winding motor 8 and the electric push rod 12 are powered and operated under control; when the control panel 14 is disconnected from the external power supply, the equipment stops operating.

[0033] The stretched PE film is passed around the bottom of the tensioning roller 54, and the tension of the PE film of the tensioning roller 54 is adjusted according to the stretched thickness of the PE film and the ambient temperature. The rocker 56 is rotated to drive the adjusting rod 55 to move up and down on the top of the mounting seat 51. The adjusting rod 55 drives the slider 53 to move up and down inside the slide groove 52, thereby driving the tensioning roller 54 to move up and down, thereby achieving tensioning of the PE film and avoiding wrinkles and overlapping of the PE film when winding.

[0034] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A stretching device for PE film processing, characterized in that: include: A mounting frame (1), a chill roller (2) being rotatably mounted on the front end of the mounting frame (1), and a baffle (3) being mounted on the surface of the mounting frame (1); A stretching assembly (4), the stretching assembly (4) comprising support bases (41) mounted on both sides of the mounting frame (1), a plurality of stretching rollers (42) being mounted on the surface of the support base (41) in a manner rotatable from top to bottom, a transmission gear (43) being fixedly mounted on both ends of the stretching rollers (42), two adjacent transmission gears (43) being meshedly connected, a servo motor (44) being fixedly mounted on one side of the bottom of the support base (41), an output end of the servo motor (44) being fixedly connected to one end of one of the stretching rollers (42); The tensioning assembly (5) comprises a mounting seat (51) fixedly mounted on both sides of the middle of the mounting frame (1); a slide groove (52) is provided on the top of the mounting seat (51); a slider (53) is slidably mounted inside the slide groove (52); a tensioning roller (54) is rotatably mounted on the surface of the slider (53); an adjusting rod (55) is threadedly mounted on the top of the mounting seat (51); a rocker (56) is mounted on the top of the adjusting rod (55); and the bottom end of the adjusting rod (55) is rotatably mounted on the top of the slider (53).

2. A stretching device for PE film processing according to claim 1, characterized in that: A support arm (6) is installed at the tail end of the mounting frame (1), a winding roller (7) is rotatably installed inside the support arm (6), a winding motor (8) is fixedly installed on one side of the support arm (6), and the output end of the winding motor (8) is fixedly connected to one end of the winding roller (7).

3. A stretching device for PE film processing according to claim 2, characterized in that: A connecting rod (9) is rotatably mounted on the top of the support arm (6), and a limiting plate (10) is fixedly mounted on the surface of the connecting rod (9).

4. A stretching device for PE film processing according to claim 3, characterized in that: An adjustment handle (11) is installed at one end of the connecting rod (9).

5. A stretching device for PE film processing according to claim 2, characterized in that: An electric push rod (12) is installed on the top of the rear end of the mounting frame (1), and a cutter (13) is installed on the telescopic end of the electric push rod (12).

6. A stretching device for PE film processing according to claim 5, characterized in that: A control panel (14) is fixedly mounted on one side of the mounting frame (1); the servo motor (44), the winding motor (8) and the electric push rod (12) are all electrically connected to the control panel (14); and the control panel (14) is electrically connected to an external power supply.

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