High-transparency PE film stretching device

Abstract

The utility model discloses a high-transparency PE film stretching device, and belongs to the technical field of PE film stretching, the high-transparency PE film stretching device comprises two stretching boxes, the two sides of the two stretching boxes are provided with feeding rollers and discharging ports, the feeding rollers are arranged in the feeding rollers and the discharging ports, the two stretching boxes are each internally provided with two conveying rollers, a stretching mechanism is arranged between the two conveying rollers, and the stretching mechanisms are arranged on the two sides of the stretching boxes. Air supply mechanisms are arranged at the tops of the two stretching boxes, each air supply mechanism comprises an air opening, the air openings are located in the stretching boxes and located over the stretching mechanisms, and fans are arranged at the tops of the two stretching boxes; when the stretching device is used, the stretching effect can be further improved, the pe film can be fully stretched in the high-temperature environment and the low-temperature environment, the adaptability to the follow-up working environment can be improved, the stretching effect can be further improved, and meanwhile the adaptability of the pe film in the external environment can also be improved.

Description

Technical Field

[0001] This application relates to the field of PE film stretching technology, and in particular to a high-transparency PE film stretching device. Background Technology

[0002] PE film, short for polyethylene film, is a thermoplastic polymer obtained by polymerizing ethylene. It is also the most widely used polymer material in the world today. PE films can be classified into low-density polyethylene (LDPE) films, medium-density polyethylene (MDPE) films, and high-density polyethylene (HDPE) films according to their density. Furthermore, depending on the manufacturing method and control measures, cross-linked polyethylene and other products with different properties can also be manufactured.

[0003] A patent document with publication number CN214294446U discloses a PE film stretching device, including a device base. A first support column and a second support column are fixedly connected to the top of the device base. The second support column is located to the right of the first support column. Support plates are fixedly connected to the top of both the first and second support columns. A first groove and a second groove are respectively formed on the inner surfaces of the first and second support columns. A first slider and a second slider are movably connected to the inner sides of the first and second grooves, respectively. A first sliding rod is fixedly connected to one side of the first slider. This PE film stretching device has a simple structure, is easy to operate, and adjusts the tension of the PE film during the stretching process, preventing slackness and enhancing the stretching effect, thus possessing high practicality.

[0004] During the use of the above devices, because the stretching process takes place at room temperature, it is difficult to guarantee the uniformity of the stretching. Furthermore, if the stretched PE film is used in a higher temperature environment afterward, it may expand and loosen. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a high-transparency PE film stretching device, which overcomes the deficiencies of existing technologies and aims to solve the problems that, during the use of the above-mentioned devices in the prior art, it is difficult to guarantee the uniformity of stretching at room temperature, and the PE film that has been stretched may expand and loosen when used in a high-temperature environment.

[0006] To achieve the above objectives, this application provides the following technical solution: a high-transparency PE film stretching device, comprising two sets of stretching boxes, each set of stretching boxes having a feeding roller and a discharge port on both sides, and a feeding roller inside each feeding roller and discharge port; each set of stretching boxes having two sets of conveying rollers inside, and a stretching mechanism between the two sets of conveying rollers; each set of stretching boxes having an air supply mechanism at the top, the air supply mechanism including an air outlet located inside the stretching box and directly above the stretching mechanism; each set of stretching boxes having a fan at the top, and a warm air module and a cold air module respectively inside the air outlets; the stretching mechanism including two sets of stretching frames, with four sets of stretching rollers and a rotating shaft between the two sets of stretching frames, both ends of the rotating shaft penetrating the two sets of stretching frames; both ends of the four sets of stretching rollers being rotatably connected to the two sets of stretching frames; and a connecting box installed between the two sets of stretching boxes, with a connecting roller inside the connecting box.

[0007] By adopting the above technical solution and setting up a stretching box, the PE film can enter the stretching box from the inside of the feed roller during use. It is then conveyed by the conveyor roller. When passing above the stretching mechanism, it is heated by high-temperature gas sprayed downwards through the vent. Then, through the continuous rotation of the stretching mechanism, the stretching roller continuously contacts the bottom of the PE film, thereby continuously stretching the PE film. The stretched film enters the connecting box from the discharge port to contact the outside air for brief cooling. After entering another stretching box, it is stretched under a low-temperature airflow and then conveyed to the next process by the feed roller. This setup can further improve the stretching effect, allowing the PE film to be fully stretched in both high and low temperature environments, improving its adaptability to subsequent working environments, and enhancing the stretching effect and the adaptability of the PE film to the external environment.

[0008] As a preferred technical solution of this application, each of the two sets of stretching frames has four sets of moving grooves inside, and each of the four sets of moving grooves has a slider slidably connected inside. Both ends of the four sets of stretching rollers are rotatably connected to the sliders, and the top of each of the four sets of sliders is rotatably connected to a threaded rod. The other end of the threaded rod passes through the stretching frame and is threadedly connected to the stretching frame.

[0009] By adopting the above technical solution and setting a threaded rod, the position of the slider can be controlled by rotating the threaded rod during use, which allows for flexible control of the stretching force and further improves practicality.

[0010] As a preferred technical solution of this application, a control panel is provided on the front of the connecting box, and the control panel is electrically connected to the stretching box, the air supply mechanism and the stretching mechanism.

[0011] By adopting the above technical solution and setting up a control panel, the entire device can be quickly controlled through the connecting box during use, further improving its practicality.

[0012] As a preferred technical solution of this application, both sets of stretching boxes are provided with a box door on the front, and both sets of box doors are provided with an observation window inside.

[0013] By adopting the above technical solution and setting a door, the interior of the stretching chamber can be protected during use, while effectively improving airtightness. The observation window allows for convenient observation of the internal operation of the stretching chamber, thus enhancing its practicality.

[0014] As a preferred technical solution of this application, multiple temperature sensors are provided inside both sets of stretching boxes. The multiple temperature sensors are located on the inner wall of the stretching box and are electrically connected to the control panel.

[0015] By adopting the above technical solution and setting a temperature sensor, the internal temperature of the stretching box can be checked in real time during use to prevent excessively high or low temperatures from affecting the membrane itself.

[0016] As a preferred technical solution of this application, a plurality of tension sensors are provided on the outside of one set of conveying rollers, and the plurality of tension sensors are electrically connected to the control panel.

[0017] By adopting the above technical solution and setting a tension sensor, the tension generated by the PE film during transportation can be detected, preventing tension issues from affecting the PE film itself.

[0018] As a preferred technical solution of this application, a support frame is provided between the two sets of conveying rollers, and the support frame is made of aluminum alloy.

[0019] By adopting the above technical solution and setting up a support frame, the stability of the conveying between the two sets of conveying rollers can be improved during use, thus enhancing practicality.

[0020] As a preferred technical solution of this application, the bottom of both sets of stretching boxes is provided with four sets of support pads, and the front of both sets of box doors is provided with handles.

[0021] By adopting the above technical solution and setting support pads, the bottom of the stretching box can be better supported during use, improving stability. By setting handles, it is more convenient to open and close the box door during use.

[0022] The beneficial effects of this application are:

[0023] 1. By setting up a stretching box, during use, the PE film can enter the stretching box from inside the feed roller, and then be conveyed by the conveyor roller. When passing above the stretching mechanism, it is heated by high-temperature gas sprayed downwards through the vent. Then, through the continuous rotation of the stretching mechanism, the stretching roller continuously contacts the bottom of the PE film, thereby continuously stretching the PE film. The stretched film enters the connecting box from the discharge port to come into contact with the outside air for brief cooling. Afterwards, it enters another stretching box, where it is stretched under a low-temperature airflow, and then is conveyed to the next process by the feed roller. This setting can further improve the stretching effect, allowing the PE film to be fully stretched in both high and low temperature environments, improving its adaptability to subsequent working environments, and further enhancing the stretching effect and the adaptability of the PE film to the external environment.

[0024] 2. By setting a threaded rod, the position of the slider can be controlled by rotating the threaded rod during use, which allows for flexible control of the stretching force and further improves practicality. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this application;

[0026] Figure 2 This is a schematic diagram of the internal structure of this application;

[0027] Figure 3 This is a schematic diagram of the internal bottom structure of this application;

[0028] Figure 4 This is a schematic diagram of the tensioning mechanism structure of this application;

[0029] Figure 5 This is a schematic diagram of the tension sensor structure of this application.

[0030] In the diagram: 1. Stretching box; 101. Feed inlet; 102. Feed roller; 103. Conveyor roller; 104. Discharge outlet; 105. Support frame; 2. Air supply mechanism; 201. Air outlet; 202. Fan; 203. Warm air module; 204. Cold air module; 3. Stretching mechanism; 301. Stretching frame; 302. Rotating shaft; 303. Stretching roller; 304. Moving groove; 305. Threaded rod; 306. Slider; 4. Connecting box; 401. Connecting roller; 402. Control panel; 5. Temperature sensor; 6. Tension sensor; 7. Box door; 701. Handle; 702. Observation window; 8. Support pad. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Reference Figure 1-5 A high-transparency PE film stretching device includes two sets of stretching boxes 1. Each set of stretching boxes 1 has a feed roller 102 and a discharge port 104 on both sides. Feed rollers 102 are installed inside both the feed rollers 102 and the discharge port 104. Each set of stretching boxes 1 has two sets of conveying rollers 103 inside. A stretching mechanism 3 is installed between the two sets of conveying rollers 103. Each set of stretching boxes 1 has an air supply mechanism 2 at its top. The air supply mechanism 2 includes an air outlet 201 located inside the stretching box 1 and directly above the stretching mechanism 3. Each of the two stretching boxes 1 is equipped with a fan 202 on its top. The two sets of air vents 201 each contain a warm air module 203 and a cold air module 204. The stretching mechanism 3 includes two sets of stretching frames 301. Four sets of stretching rollers 303 and a rotating shaft 302 are positioned between the two sets of stretching frames 301. Both ends of the rotating shaft 302 pass through the two sets of stretching frames 301. The two ends of the four sets of stretching rollers 303 are rotatably connected to the two sets of stretching frames 301. A connecting box 4 is installed between the two stretching boxes 1. A connecting roller 401 is installed inside the connecting box 4. A control panel 402 is located on the front of the connecting box 4. The control panel 402 is electrically connected to the stretching box 1, the air supply mechanism 2, and the stretching mechanism 3.

[0033] By setting up the stretching box 1, during use, the PE film can be fed into the stretching box 1 from inside the feed roller 102, and then conveyed by the conveying roller 103. When passing above the stretching mechanism 3, it is heated by high-temperature gas sprayed downwards through the air outlet 201. Then, through the continuous rotation of the stretching mechanism 3, the stretching roller 303 continuously contacts the bottom of the PE film, thereby continuously stretching the PE film. The stretched film enters the connecting box 4 from the discharge port 104 to contact the outside air for brief cooling. After entering another stretching box 1, it is stretched under a low-temperature airflow and then conveyed into the next process by the feed roller 102. This setting can further improve the stretching effect, allowing the PE film to be fully stretched in both high and low temperature environments, improving its adaptability to subsequent working environments, and enhancing the stretching effect and the adaptability of the PE film to the external environment. By setting up the control panel 402, the entire device can be quickly operated through the connecting box 4 during use, further improving its practicality.

[0034] Reference Figure 1 Each of the two sets of tensioning frames 301 has four sets of moving slots 304 inside, and each set of moving slots 304 has a slider 306 slidably connected inside. Both ends of the four sets of tensioning rollers 303 are rotatably connected to the sliders 306. The tops of the four sets of sliders 306 are rotatably connected to threaded rods 305, the other end of which passes through the tensioning frame 301 and is threadedly connected to it. Each of the two sets of tensioning boxes 1 has a door 7 on its front, and each door 7 has an observation window 702 inside. Multiple tension sensors 6 are installed on the outside of one set of conveying rollers 103, and these tension sensors 6 are electrically connected to the control panel 402. The device features a threaded rod 305, which allows for flexible control of the stretching force by rotating the rod 305, thus enhancing practicality. A door 7 protects the interior of the stretching box 1 and improves airtightness. An observation window 702 allows for easy observation of the internal operation of the stretching box 1, further enhancing practicality. A tension sensor 6 detects the tension generated during PE film transport, preventing tension issues from affecting the film itself.

[0035] Reference Figure 1Each of the two stretching chambers 1 is equipped with multiple temperature sensors 5 located on the inner wall of the stretching chamber 1, and all of the temperature sensors 5 are electrically connected to the control panel 402. By setting the temperature sensors 5, the internal temperature of the stretching chamber 1 can be checked in real time during use to prevent excessively high or low temperatures from affecting the film itself. A support frame 105 made of aluminum alloy is set between the two sets of conveying rollers 103. By setting the support frame 105, the stability of the conveying between the two sets of conveying rollers 103 during use can be improved, thus enhancing practicality. Each of the two stretching chambers 1 has four support pads 8 at the bottom, and each of the two chamber doors 7 has a handle 701 on the front. By setting the support pads 8, the bottom of the stretching chamber 1 can be better supported during use, improving stability. By setting the handles 701, it is more convenient to open and close the chamber doors 7 during use.

[0036] Working principle: By setting up the stretching box 1, during use, the PE film can be fed into the stretching box 1 from inside the feed roller 102. It is then conveyed by the conveying roller 103. When passing above the stretching mechanism 3, it is heated by high-temperature gas sprayed downwards through the air outlet 201. Then, through the continuous rotation of the stretching mechanism 3, the stretching roller 303 continuously contacts the bottom of the PE film, thereby continuously stretching the PE film. The stretched film enters the connecting box 4 from the discharge port 104 to come into contact with the outside air for a short period of cooling, and then enters another stretching box. After entering the interior of 1, it will be stretched under low-temperature airflow, and then conveyed into the next process through the feed roller 102. This setting can further improve the stretching effect, enabling the PE film to be fully stretched in both high and low temperature environments, improving its adaptability to subsequent working environments, and further enhancing the stretching effect. It can also improve the adaptability of the PE film to the external environment. By setting the threaded rod 305, the position of the slider 306 can be controlled by rotating the threaded rod 305 during use, which can flexibly control the stretching force and further improve practicality.

[0037] Among them, by setting up the control panel 402, the entire device can be quickly controlled through the connecting box 4 during use, further improving its practicality. By setting up the box door 7, the inside of the stretching box 1 can be protected during use, and the airtightness can be effectively improved. The observation window 702 can be set up to facilitate the observation of the internal operation of the stretching box 1, improving its practicality.

[0038] Meanwhile, by setting temperature sensor 5, the internal temperature of stretching box 1 can be checked in real time during use to prevent the temperature from being too high or too low and to prevent it from affecting the membrane itself.

[0039] In addition, by setting tension sensor 6, the tension generated by the PE film during transportation can be detected, preventing tension issues from affecting the PE film itself; by setting support frame 105, the stability of transportation between the two sets of conveying rollers 103 can be improved, enhancing practicality; by setting support pad 8, the bottom of the stretching box 1 can be better supported, improving stability during use; and by setting handle 701, opening and closing the box door 7 can be made more convenient during use.

[0040] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high transparent PE film stretching device comprising two sets of stretching boxes (1), characterized in that, Both sides of the two sets of stretching boxes (1) are provided with feeding rollers (102) and discharge ports (104). Feeding rollers (102) are installed inside both the feeding rollers (102) and the discharge ports (104). Two sets of conveying rollers (103) are installed inside each of the two sets of stretching boxes (1). A stretching mechanism (3) is installed between the two sets of conveying rollers (103). An air supply mechanism (2) is installed on the top of each of the two sets of stretching boxes (1). The air supply mechanism (2) includes an air outlet (201). The air outlet (201) is located inside the stretching box (1) and directly above the stretching mechanism (3). The two sets of stretching boxes (1)... A fan (202) is provided on the top of each of the two sets of air outlets (201), and a warm air module (203) and a cold air module (204) are respectively provided inside the two sets of air outlets (201). The stretching mechanism (3) includes two sets of stretching frames (301). Four sets of stretching rollers (303) and a rotating shaft (302) are provided between the two sets of stretching frames (301). Both ends of the rotating shaft (302) pass through the two sets of stretching frames (301). The two ends of the four sets of stretching rollers (303) are rotatably connected to the two sets of stretching frames (301). A connecting box (4) is installed between the two sets of stretching boxes (1). A connecting roller (401) is provided inside the connecting box (4).

2. The high transparent PE film stretching device according to claim 1, characterized in that, Both sets of stretching frames (301) have four sets of moving slots (304) inside. Each of the four sets of moving slots (304) has a slider (306) slidably connected inside. Both ends of the four sets of stretching rollers (303) are rotatably connected to the sliders (306). The top of each of the four sets of sliders (306) is rotatably connected to a threaded rod (305). The other end of the threaded rod (305) passes through the stretching frame (301) and is threadedly connected to the stretching frame (301).

3. The high transparent PE film stretching device according to claim 1, characterized in that, The front of the connecting box (4) is provided with a control panel (402), which is electrically connected to the stretching box (1), the air supply mechanism (2) and the stretching mechanism (3).

4. The high transparent PE film stretching device according to claim 1, characterized in that, Both sets of stretching boxes (1) are provided with a box door (7) on the front, and both sets of box doors (7) are provided with an observation window (702) inside.

5. The high transparent PE film stretching device according to claim 3, characterized in that, Both sets of stretching boxes (1) are equipped with multiple sets of temperature sensors (5). The multiple sets of temperature sensors (5) are located on the inner wall of the stretching box (1) and are electrically connected to the control panel (402).

6. The high transparent PE film stretching device according to claim 5, characterized in that, One of the conveying rollers (103) has multiple sets of tension sensors (6) externally mounted, and the multiple sets of tension sensors (6) are electrically connected to the control panel (402).

7. The high transparent PE film stretching device according to claim 1, characterized in that, A support frame (105) is provided between the two sets of conveying rollers (103), and the support frame (105) is made of aluminum alloy.

8. The high transparent PE film stretching device according to claim 4, characterized in that, The bottom of both sets of stretching boxes (1) is provided with four sets of support pads (8), and the front of both sets of box doors (7) is provided with handles (701).

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