Film stretching machine for film production

Abstract

The utility model belongs to the technical field of film stretching, and particularly relates to a film stretching machine for film production, which comprises a film production stretcher, a staggered extruding and tensioning unit is fixedly mounted at the output end of the film production stretcher, and the staggered extruding and tensioning unit comprises a lap joint table and a tensioning conveying roller. A hot air circulation heating unit is fixedly installed on the outer side surface of the bottom of the lap joint table and comprises a hot air circulation fluid director and an air guide pipe. The tensioning device is matched with a film production stretcher to extrude and stretch out a film, and is matched with the tensioning conveying rollers to be overlapped on the surface of the film in a staggered manner, so that the film is tensioned during transportation by utilizing the staggered butt joint of the tensioning conveying rollers, and the situation that the film which is just stretched out cannot be conveyed due to the characteristics of materials during transportation is avoided. And the inner space of the lap joint table is sealed in cooperation with the heightening partition plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of film stretching, in particular to a film production film stretching machine. Background Art

[0002] The stretch film machine is mainly used for the production of uniaxially stretched polyethylene plastic film (stretch film, wrapping film) and cling film. It consists of three parts: main machine, auxiliary machine and electrical control. The film is a thin, soft and transparent sheet made of plastic, adhesive, rubber or other materials. The scientific explanation of the film is: a two-dimensional material formed by the deposition of atoms, molecules or ions on the surface of the substrate.

[0003] A Chinese patent with publication number CN220031167U discloses a film stretching machine for film production, comprising a bottom plate, support plates are provided on the front and rear sides of the bottom plate, a circulating water tank is provided on the surface of the bottom plate near the left edge, a first support pipe is provided on the top of the circulating water tank near the middle of the front and rear edges, a heating plate is provided between the two first support pipes, a water storage tank is provided inside the circulating water tank, a heater is provided at the bottom of the water storage tank, and a water pump is provided on the top of the water storage tank. The film stretching machine for film production solves the problems of short heating time, insufficient and uneven heating through the heating plate on the circulating water tank and the cooling plate on the box platform.

[0004] In the current existing technology, after the film production tensioning device is produced, the heating device is heated by steam roller heating or the like, so the heating time is short and the heat is dissipated quickly, so that the heating efficiency is not thorough enough and the heating is not uniform enough, which will cause the film at the low temperature position and the high temperature position to break due to the temperature difference and dragging, making it impossible to perform constant temperature treatment on the surface of the film.

[0005] To this end, the utility model provides a film production film stretching machine. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a film production film stretching machine, including a film production stretcher, a staggered extrusion and tensioning unit is fixedly installed on the output end of the film production stretcher, the staggered extrusion and tensioning unit includes a lap table and a tensioning and transporting roller, a hot air circulation heating unit is fixedly installed on the bottom outer surface of the lap table, the hot air circulation heating unit includes a hot air circulation deflector and an air guide pipe, and a blowing filter unit is fixedly connected to the output end of the hot air circulation heating unit, and the blowing filter unit includes a filter screen, a screen plate and a dust collection box.

[0008] Preferably, the left surface of the overlapping platform is fixedly connected to the output end of the film production stretcher, and the right surface of the overlapping platform is fixedly connected to a film cooler. Excess wind source will accumulate on the inner surface of the film cooler, and excess air will be sprayed to the outside through the right outlet of the film cooler, so as to perform secondary blowing on the cooled film and continuously cool down the residual heat, thereby reducing the slow escape of hot air, the uneven solidification speed, and the occurrence of pulling and breaking.

[0009] Preferably, one end of the air guide pipe is fixedly connected to the input end of the hot gas circulation deflector, a soft ferrule is fixedly connected to the middle position of the air guide pipe, and a closed top cover is fixedly connected to the top end of the air guide pipe.

[0010] Preferably, the number of the tensioning and transporting rollers is set to be multiple, and the film is extruded and stretched out in cooperation with the film production stretcher, and the tensioning and transporting rollers are staggered and overlapped on the surface of the film, and the staggered docking of the tensioning and transporting rollers is used to tension the film during transportation, so as to prevent the newly stretched film from rebounding due to the elasticity of the material characteristics during transportation. The positions of the multiple tensioning and transporting rollers are respectively arranged on the inner surface of the lap joint platform and the closed top cover, and the inner surface of the closed top cover is detachably mounted on the top surface of the lap joint platform. An upstream air duct is fixedly connected to the output end of the hot air circulation deflector, and the hot air entering the inside of the lap joint platform will continuously accumulate, driving the lower temperature air inside to drive it to be guided into the inside of the air duct, so that the hot air is circulated, heated and flowed from the upstream air duct, the hot air circulation deflector and the inside of the lap joint platform. A docking sealing ring detachably mounted on the bottom surface of the lap joint platform is fixedly connected to the top surface of the upstream air duct.

[0011] Preferably, the outer surface of the filter screen is detachably mounted on the inner top surface of the upstream air duct, and a hair dryer 2 is fixedly mounted on the inner top edge of the upstream air duct. The screen is arranged on the inner top surface of the upstream air duct, and cooperates with the dispersed holes on the surface of the screen to diffuse the discharged gas and reduce its flow rate, so that the hot air is evenly diffused on the surface of the film, and the flow of airflow is used to maintain a constant temperature on the surface of the film.

[0012] Preferably, an air pipe is fixedly connected to the outer bottom surface of the upstream air pipe, and one end of the air pipe is fixedly connected to the output end of the hot air circulation deflector, and the dust collecting box is movably sleeved on the bottom inner surface of the upstream air pipe.

[0013] Preferably, a raised partition is fixedly connected to the left surface of the film cooler, and the raised partition is used to seal the space inside the lap platform to reduce the heat source inside the lap platform. The opening at the outlet position is too large, and the internal heat source dissipates too much, causing the surface temperature of the film to dissipate too quickly, resulting in uneven temperature on the surface of the film. A top cover is provided on the top surface of the film cooler, and a hair dryer is provided on the inner surfaces of the film cooler and the top cover.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The film production stretching machine described in the utility model cooperates with the film production stretcher to extrude and stretch the film, cooperates with the tensioning and transporting rollers to overlap on the surface of the film, and utilizes the staggered docking of the tensioning and transporting rollers to tighten the film during transportation, so as to avoid the film that has just been stretched rebounding due to the characteristics of the material during transportation due to elasticity, cooperates with the padding partition to seal the space inside the lap joint platform, and reduces the heat source inside the lap joint platform. The opening at the outlet position is too large, and the internal heat source dissipates too much, so that the surface temperature of the film dissipates too quickly, making the temperature on the surface of the film uneven. After the film passes through the padding partition, cooperate with the hair dryer to blow air into the inside of the film cooler to cool the heat source on the surface of the film, so that the film is quickly solidified and fixed, and the excess wind source will accumulate on the inner surface of the film cooler, and the excess air will be sprayed to the outside through the right outlet of the film cooler, and the cooled film will be blown twice to continuously cool the residual heat, so as to reduce the slow dissipation of heat, the uneven solidification speed, and the pulling and breaking.

[0016] 2. The utility model describes a film production and stretching machine, which cooperates with the hot air circulation deflector to heat the interior, cooperates with the hair dryer to absorb gas inside the upstream air duct, cooperates with the air duct to absorb the heat source produced inside the hot air circulation deflector and guide it into the interior of the upstream air duct, cooperates with the filter screen to filter out dust and impurities inside the upstream air duct, cooperates with the dust collecting box to collect the fallen impurities, cooperates with the holes dispersed on the surface of the screen to diffuse the discharged gas, and at the same time reduces its flow rate, so that the hot air is evenly diffused on the surface of the film, and the flow of air flow is used to keep the surface of the film at a constant temperature. The hot air entering the lap table will continue to accumulate, driving the lower temperature air inside to drive it to be guided into the interior of the air duct, so that the hot air is circulated, heated and flows from the interior of the upstream air duct, the hot air circulation deflector and the lap table. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the unfolded three-dimensional structure of the film production stretcher in the utility model;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the hot gas circulation deflector in the utility model;

[0021] Figure 4 It is a schematic diagram of the cutaway three-dimensional structure of the upstream air pipe in the utility model;

[0022] Figure 5 It is a schematic diagram of the unfolded three-dimensional structure of the thin film cooler in the utility model.

[0023] In the figure: 11, film production stretcher; 12, lap joint table; 13, film cooler; 131, padding partition; 132, top cover; 133, hair dryer 1; 14, hot air circulation deflector; 141, air guide tube; 142, soft ring; 143, closed top cover; 144, upstream air duct; a1, filter screen; a2, hair dryer 2; a3, screen; a4, dust box; a5, air duct; 145, docking seal ring;

[0024] 15. Tighten the transport roller. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figures 1 to 5As shown, a film production and film stretching machine according to an embodiment of the utility model, the left surface of the lap table 12 is fixedly connected to the output end of the film production and stretching device 11, and a film cooler 13 is fixedly connected to the right surface of the lap table 12. Excess wind source will accumulate on the inner surface of the film cooler 13, and excess air will pass through the right outlet of the film cooler 13 and be sprayed to the outside, and the cooled film will be blown for the second time, and the residual heat will be continuously cooled to reduce the slow dissipation of hot air, the uneven solidification speed, and the occurrence of pulling and breaking. The left surface of the film cooler 13 is fixedly connected with a padding partition 1 31. The space inside the lap platform 12 is sealed in cooperation with the raised partition 131 to reduce the heat source inside the lap platform 12. Because the opening at the outlet position is too large, the internal heat source dissipates too much, causing the surface temperature of the film to dissipate too quickly, resulting in uneven temperature on the surface of the film. A top cover 132 is provided on the top surface of the film cooler 13, and a hair dryer 133 is provided on the inner surfaces of the film cooler 13 and the top cover 132. After the film passes through the raised partition 131, the hair dryer 133 is used to blow air into the interior of the film cooler 13 to cool down the heat source on the surface of the film, so that the film can be quickly solidified and fixed.

[0027] like Figures 1 to 5As shown, it includes a film production stretcher 11, and a staggered extrusion and tensioning unit is fixedly installed on the output end of the film production stretcher 11. The staggered extrusion and tensioning unit includes a lap table 12 and a tensioning and transporting roller 15. A hot air circulation heating unit is fixedly installed on the bottom outer surface of the lap table 12. The hot air circulation heating unit includes a hot air circulation deflector 14 and an air guide pipe 141. An air blowing filter unit is fixedly connected to the output end of the hot air circulation heating unit. The air blowing filter unit includes a filter screen plate a1, a screen plate a3 and a dust collecting box a4. One end of the air guide pipe 141 is fixedly connected to the input end of the hot air circulation deflector 14. A soft ring 142 is fixedly connected to the middle position of the air guide pipe 141. A closed top cover 143 is fixedly connected to the top of the air guide pipe 141. There are multiple tensioning and transporting rollers 15, which cooperate with the film production stretcher 11 to extrude and stretch the film, and cooperate with the tensioning and transporting rollers 15 to overlap on the surface of the film in an alternating manner. The staggered docking of the tensioning and transporting rollers 15 allows the film to be tensioned during transportation to prevent the newly stretched film from rebounding due to the elasticity of the material characteristics during transportation. The positions of the multiple tensioning and transporting rollers 15 are respectively arranged on the inner surfaces of the overlapping platform 12 and the closed top cover 143, and the inner surface of the closed top cover 143 can be detachably mounted on the top surface of the overlapping platform 12. The output end of the hot air circulation deflector 14 is fixedly connected to an upstream air pipe 144, and the hot air entering the overlapping platform 12 will continue to accumulate, driving the internal The air with lower temperature is driven to flow into the interior of the air guide 141, so that the hot air is circulated, heated and flows from the interior of the upstream air duct 144, the hot air circulation guide 14 and the overlapping platform 12. A docking sealing ring 145 that is detachably mounted on the bottom surface of the overlapping platform 12 is fixedly connected to the top surface of the upstream air duct 144. The outer surface of the filter screen plate a1 is detachably mounted on the inner top surface of the upstream air duct 144, and the filter screen plate a1 is used to filter the dust and impurities inside the upstream air duct 144, and the dust box a4 is used to collect the fallen impurities. A hair dryer a2 is fixedly installed on the inner top edge of the upstream air duct 144, and the interior of the hot air circulation guide 14 is heated. The blower a2 absorbs gas inside the upstream air duct 144, and the mesh plate a3 is set on the inner top surface of the upstream air duct 144, and cooperates with the dispersed holes on the surface of the mesh plate a3 to diffuse the discharged gas and reduce its flow rate at the same time, so that the hot air can be evenly diffused on the surface of the film, and the flow of air can be used to maintain a constant temperature on the surface of the film. An air pipe a5 is fixedly connected to the outer bottom surface of the upstream air duct 144, and one end of the air pipe a5 is fixedly connected to the output end of the hot air circulation deflector 14, and cooperates with the air pipe a5 to absorb and guide the heat source produced inside the hot air circulation deflector 14 into the interior of the upstream air duct 14, and the dust box a4 is movably sleeved on the bottom inner surface of the upstream air duct 14.

[0028] Working principle: cooperate with the film production stretcher 11 to extrude and stretch the film, cooperate with the tensioning transport roller 15 to overlap on the surface of the film, and use the staggered docking of the tensioning transport roller 15 to tighten the film during transportation to avoid the newly stretched film from rebounding due to the elasticity of the material during transportation. Cooperate with the padding partition 131 to seal the space inside the overlapping platform 12 to reduce the heat source inside the overlapping platform 12. The opening at the outlet position is too large, and the internal heat source is too large to dissipate, causing the surface temperature of the film to escape. The film cooler 130 is a film cooler with a plurality of air outlets 136 disposed on the film cooler 13. The film cools down the film surface after the heat source is cooled. The film cools down ...

[0029] Cooperate with the hot air circulation deflector 14 to heat the interior, cooperate with the hair dryer a2 to absorb gas inside the upstream air duct 144, cooperate with the air duct a5 to absorb the heat source produced inside the hot air circulation deflector 14 and guide it into the interior of the upstream air duct 144, cooperate with the filter screen a1 to filter out dust and impurities inside the upstream air duct 144, cooperate with the dust box a4 to collect the fallen impurities, cooperate with the holes dispersed on the surface of the screen a3 to diffuse the discharged gas, and at the same time reduce its flow rate, so that the hot air can be evenly diffused on the surface of the film, and the flow of air flow can be used to maintain a constant temperature on the surface of the film. The hot air entering the inside of the lap joint 12 will continue to accumulate, driving the lower temperature air inside to drive it into the inside of the air duct 141, so that the hot air can be circulated, heated and flowed from the inside of the upstream air duct 144, the hot air circulation deflector 14 and the lap joint 12.

[0030] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A film production film stretching machine, characterized in that: It comprises a film production stretcher (11), on the output end of which a staggered extrusion tensioning unit is fixedly mounted, the staggered extrusion tensioning unit comprises a lap joint table (12) and a tensioning transport roller (15), on the bottom outer surface of the lap joint table (12) a hot air circulation heating unit is fixedly mounted, the hot air circulation heating unit comprises a hot air circulation deflector (14) and an air guide pipe (141), on the output end of the hot air circulation heating unit a blowing filter unit is fixedly connected, the blowing filter unit comprises a filter screen plate (a1), a screen plate (a3) ​​and a dust collecting box (a4).

2. A film production film stretching machine according to claim 1, characterized in that: The left side surface of the overlapping platform (12) is fixedly connected to the output end of the film production stretcher (11), and the right side surface of the overlapping platform (12) is fixedly connected to a film cooler (13).

3. A film production film stretching machine according to claim 2, characterized in that: One end of the air guide pipe (141) is fixedly connected to the input end of the hot gas circulation deflector (14), a soft ferrule (142) is fixedly connected to the middle position of the air guide pipe (141), and a closed top cover (143) is fixedly connected to the top end of the air guide pipe (141).

4. A film production film stretching machine according to claim 1, characterized in that: The number of the tensioning and transporting rollers (15) is multiple, and the positions of the multiple tensioning and transporting rollers (15) are respectively set on the inner surface of the overlapping platform (12) and the closed top cover (143), and the inner surface of the closed top cover (143) is detachably mounted on the top surface of the overlapping platform (12), and the output end of the hot gas circulation deflector (14) is fixedly connected to an upstream air pipe (144), and the top surface of the upstream air pipe (144) is fixedly connected to a docking sealing ring (145) detachably mounted on the bottom surface of the overlapping platform (12).

5. A film production film stretching machine according to claim 4, characterized in that: The outer surface of the filter screen (a1) is detachably mounted on the inner top surface of the upstream air duct (144); a hair dryer 2 (a2) is fixedly mounted on the inner top edge of the upstream air duct (144); and the screen (a3) ​​is arranged on the inner top surface of the upstream air duct (144).

6. A film production film stretching machine according to claim 4, characterized in that: An air pipe (a5) is fixedly connected to the outer bottom surface of the upstream air pipe (144), and one end of the air pipe (a5) is fixedly connected to the output end of the hot air circulation deflector (14), and the dust collecting box (a4) is movably sleeved on the bottom inner surface of the upstream air pipe (144).

7. A film production film stretching machine according to claim 2, characterized in that: A raised partition plate (131) is fixedly connected to the left surface of the thin film cooler (13), a top cover (132) is arranged on the top surface of the thin film cooler (13), and a blower (133) is arranged on the inner surfaces of the thin film cooler (13) and the top cover (132).

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