Plastic film cooling device and using method

Abstract

The invention discloses a plastic film cooling device and a using method.The plastic film cooling device comprises a cooling tank and a vertical plate, and an extrusion molding die head is fixedly installed at the bottom of the cooling tank and used for vertically and upwards extruding a plastic film; two extension compression rollers are mounted right above the extrusion molding die head, two water scraping mechanisms are mounted on the two extension compression rollers, and the distance between the two extension compression rollers is adjusted through an adjusting mechanism; the inner wall, close to the top, of the cooling tank is fixedly connected with two symmetrically-arranged overflow tanks, a first supporting roller capable of being elastically supported in the vertical direction is installed above the cooling tank, two water removal mechanisms arranged up and down are installed on the side wall of the vertical plate, and a second supporting roller capable of being elastically supported in the horizontal direction is installed on the side between the two water removal mechanisms. The invention relates to the technical field of plastic film production. According to the plastic film cooling device, the problem that moisture on a traditional plastic film is difficult to thoroughly remove after the plastic film passes through a cooling water pool user is solved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic film production, and in particular to a plastic film cooling device and a use method thereof. Background Art

[0002] In the production process of plastic film, the traditional cooling method has an important impact on the quality of plastic film and subsequent processing. One common method is to pull the plastic film horizontally after extrusion, and then pass the plastic film through a cold water tank for cooling.

[0003] In this traditional process, when the plastic film passes through the cold water tank, although it can achieve a certain degree of cooling, it faces a serious problem of residual moisture. On the one hand, after the plastic film comes out of the cold water tank, a large amount of cooling water will adhere to its surface. Due to the material properties and surface tension of the plastic film itself, this moisture will not naturally and quickly detach, but will exist on the surface of the plastic film in the form of water droplets or water film.

[0004] On the other hand, some existing simple water removal measures are not effective. For example, relying solely on gravity drainage is extremely inefficient and takes a long time to remove part of the water, which is far from meeting the speed requirements of industrial production. Moreover, on the production line, there is no effective means to prevent new water droplets from attaching again during the movement of the plastic film. At the same time, some rough wiper designs also have defects. They may not be able to completely cover the surface of the plastic film, resulting in residual water in some areas, or the friction between the wiper tool and the surface of the plastic film during the wiper process may damage the plastic film, affecting its quality and appearance.

[0005] Therefore, we propose to provide a plastic film cooling device and a method of use. Summary of the invention

[0006] In order to solve the problem that it is difficult to completely remove the moisture on the traditional plastic film after it passes through the cooling water pool, the purpose of the present invention is to provide a plastic film cooling device and a use method.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a plastic film cooling device, comprising a cooling trough and a vertical plate, an extrusion die head is fixedly installed at the bottom of the cooling trough for vertically extruding the plastic film upward; two rolling rollers are installed directly above the extrusion die head, two water scraping mechanisms are installed on the two rolling rollers, and the spacing between the two rolling rollers is adjusted by an adjustment mechanism; two overflow troughs are fixedly connected to the inner wall of the cooling trough near the top, a first support roller that can be elastically supported in the vertical direction is installed above the cooling trough, two water removal mechanisms that are arranged up and down are installed on the side wall of the vertical plate, and a second support roller that can be elastically supported in the horizontal direction is installed on the side between the two water removal mechanisms;

[0008] The water removal mechanism includes two rectangular plates fixedly installed on the side walls of the vertical plate, two columns fixedly connected between the two rectangular plates, movable blocks slidably penetrate the outer walls of the two columns, a rectangular frame fixedly connected to the side walls of the movable blocks, a drum skin fixedly connected to the inner wall at the top port of the rectangular frame, a plurality of knocking balls installed above the drum skin, and a liftable frame-shaped plate installed below the rectangular frame;

[0009] A driving mechanism is installed on the side of the vertical plate, and the driving mechanism is used for driving the striking ball to strike the drum skin and at the same time driving the rectangular frame to rise.

[0010] Preferably, the middle part of the bottom of the cooling trough is arranged as a trapezoidal platform, the extrusion die head is fixedly mounted on the trapezoidal platform, and drainage ports are provided at the bottom of both sides of the trapezoidal platform of the cooling trough.

[0011] Preferably, the wiper mechanism includes two symmetrically arranged side plates, the tops of the two side plates are fixedly connected with inclined guide plates, the side walls of the two side plates and the bottom of the guide plates are fixedly connected with an arc plate, the outer wall of the rolling roller is slidably connected with a plurality of wiper plates, and the side of the wiper plate away from the rolling roller is fixedly connected with two first baffles, the side wall of the first baffle is fixedly connected with a movable rod that is slidably connected with the outer wall of the arc plate, and the end of the movable rod away from the first baffle is fixedly connected with the second baffle, the outer wall of the movable rod is sleeved with a first spring, and the two ends of the first spring are respectively pressed against the first baffle and the inner wall of the arc plate; the side wall of one of the side plates is fixedly connected with a first rectangular block, and the side wall of the first rectangular block is slidably connected with a guide rod, and the two ends of the guide rod are respectively fixedly connected with the inner wall of the cooling groove, and the two ends of the rolling roller are rotatably connected with the inner wall of the two side plates through a connecting shaft, and the side wall of the guide plate top is vertical to the vertical surface, and the vertical surface is tangent to the outer wall of the rolling roller.

[0012] Preferably, the adjustment mechanism includes a support plate fixedly connected to the inner wall of the cooling trough, two symmetrically arranged U-shaped frames are fixedly connected to the top of the support plate, a slide rail is fixedly connected to the bottom of the U-shaped frame, a lead screw is rotatably passed through the inner wall of the U-shaped frame, one end of the lead screw is axially connected to a first motor fixedly installed on the side wall of the U-shaped frame, a second rectangular block is threadedly passed through the outer wall of the lead screw, a guide groove is provided at the bottom of the second rectangular block, and the inner wall of the guide groove is slidably connected to the outer wall of the slide rail; the side wall of the second rectangular block is fixedly connected to the side plate, a second motor is fixedly installed on the second rectangular block, and the output end of the second motor rotates through the side wall of the second rectangular block and is axially connected to one end of the rolling roller.

[0013] Preferably, the two overflow troughs are connected by a square tube, the side wall of the square tube is connected to a water supply interface fixedly connected to the side wall of the cooling trough, the side walls of the two overflow troughs facing each other are opened, and the side walls at the overflow trough openings are fixedly connected with a U-shaped opening, and the square tube is arranged below the U-shaped opening.

[0014] Preferably, the first support roller and the second support roller are respectively mounted on two elastic mechanisms, the elastic mechanisms include a fixed block, two connecting rods are slidably connected on the fixed block, the bottoms of the two connecting rods are fixedly connected to the limiting plate, and the tops are fixedly connected to the mounting block; the outer wall of the connecting rod is sleeved with a second spring, and the two ends of the second spring are respectively pressed against the fixed block and the mounting block; the fixed block on the elastic mechanism where the first support roller is located is fixedly connected to the side wall of the cooling groove, the fixed block on the elastic mechanism where the second support roller is located is fixedly connected to the side wall of the vertical plate, one end of the first support roller is rotatably connected to the side wall of the mounting block, and one end of the second support roller is rotatably connected to the side wall of the mounting block.

[0015] Preferably, the side walls of the rectangular frame are fixedly connected to a mounting plate, the side walls of the mounting plate are rotatably connected to a square rod via a transmission shaft, the side walls of the square rod are fixedly connected to a cross rod, the side walls of the cross rod are fixedly connected to a plurality of rubber rods, the end of the rubber rod away from the cross rod is fixedly connected to a striking ball, a tension spring is hung at the bottom of the square rod close to one end of the cross rod, the bottom end of the tension spring is hung to the top surface of the rectangular frame, the top surface of the rectangular frame is fixedly connected to a limiting rod, the top surface of the limiting rod is blocked by the bottom of the square rod; the side walls of the rectangular frame are fixedly connected to a cylinder, the telescopic end of the bottom of the cylinder is fixedly connected to the top surface of the frame plate.

[0016] Preferably, the driving mechanism includes a dustproof plate fixedly mounted on the side wall of the vertical plate, a hanging plate fixedly connected to the bottom of the dustproof plate, a first rotating shaft is rotatably connected to the side wall of the hanging plate close to the bottom, a driving rod is fixedly connected to the outer wall of the first rotating shaft, a third motor axially connected to one end of the first rotating shaft is fixedly mounted on the hanging plate, an end of the driving rod is in a blocking fit with the top surface of the end of the square rod, a connecting block is fixedly connected to the side wall of the hanging plate, a second rotating shaft is rotatably connected to the side wall of the connecting block, a driven rod is fixedly connected to the outer wall of the second rotating shaft, one end of the second rotating shaft is fixedly connected to a winding wheel, a pull rope is wound in the winding wheel, and an end of the pull rope away from the winding wheel is fixedly connected to the top surface of the movable block;

[0017] A third spring is sleeved on the outer wall of the column, and the two ends of the third spring are respectively pressed against the bottom of the upper rectangular plate and the top surface of the movable block; the top surface of the upper rectangular plate is fixedly connected with a strip plate, and the side wall of the strip plate is rotatably connected with a supporting groove wheel through a pin shaft, and the pull rope is supported in the supporting groove wheel and turns vertically downward; the pull rope moves vertically downward through the rectangular plate.

[0018] Preferably, the side wall of the vertical plate is fixedly connected to a water receiving trough, the bottom of the water receiving trough is inclined downwardly connected to a connecting pipe, and the bottom of the connecting pipe is connected to the side of the cooling trough; the side wall of the vertical plate is rotatably connected to a third support roller, a fourth support roller and a fifth support roller via a connecting shaft; the third support roller is located on the side of the upper wiper mechanism, the fourth support roller is located on the side of the lower wiper mechanism, the fourth support roller is located directly below the third support roller, the fifth support roller is located on the other side of the lower wiper mechanism, and the fifth support roller is arranged on a side close to the cooling trough.

[0019] A method for using a plastic film cooling device comprises the following steps:

[0020] Step 1: The extrusion die extrudes the plastic film, passes the plastic film between two calendering rollers, and then passes the plastic film between two overflow grooves. The plastic film is supported by the first support roller and then turns to the upper dewatering mechanism. The plastic film passes between the rectangular frame and the frame plate.

[0021] Then the plastic film is supported by the second support roller and turned to the water removal mechanism below, and passes through the rectangular frame and the frame plate, and is subsequently pulled by other process equipment;

[0022] Step 2: According to the required thickness of the plastic film, the distance between the two calendering rollers is adjusted by the adjusting mechanism, and the two calendering rollers are rotated to calender; at the same time, cooling water is supplied to the two overflow grooves, and the cooling water overflows from the two overflow grooves, forming a waterfall and pouring toward the two sides of the plastic film;

[0023] Step 3: Cooling water flows from top to bottom through the plastic film to absorb heat, and two wiper mechanisms drain the water into the cooling tank;

[0024] Step 4: In the water removal mechanism at the top, the frame plate rises to press the plastic mold against the port at the bottom of the rectangular frame, and the driving mechanism drives a number of knocking balls to knock the drum skin, so that the drum skin and the plastic mold generate vibration together; the water on the lower surface of the plastic mold is separated under the vibration, and the driving mechanism drives the rectangular frame to rise at the same time, lifting the plastic mold upward; the water that is vibrated and falls off falls;

[0025] Step 5: The water removal mechanism below shakes off the water on the other surface of the plastic film.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention drives the knocking ball to knock the drum skin through the driving mechanism, so that the surface of the plastic film vibrates, and the water on the surface of the plastic film is separated under the action of the vibration; at the same time, the driving mechanism can also drive the knocking ball to rise, thereby lifting the plastic film, avoiding the re-adhesion of water that falls off the plastic film due to vibration, and can effectively remove the moisture of the plastic film to ensure that the plastic film is dry.

[0028] 2. The present invention can remove moisture from both sides of the plastic mold in sequence through the upper and lower water removal mechanisms.

[0029] 3. The present invention allows cooling water to pour down toward both sides of the plastic film in a waterfall shape through the U-shaped mouth of the overflow trough, so that the cooling water is in full contact with the plastic film. When the cooling water flows through the plastic film from top to bottom, the colder water on the upper side absorbs the residual heat of the upper plastic film, and the water that absorbs the residual heat can absorb the heat of the higher temperature of the lower plastic film after flowing downward. This heat transfer method makes full use of the temperature gradient of the cooling water, greatly improves the cooling efficiency, and ensures the cooling effect of the plastic film.

[0030] 4. In the present invention, through the provision of the guide plate, most of the water flowing downward is intercepted by the guide plate, and then guided to the cooling trough through its inclined surface. The water remaining in the plastic mold may flow to the rolling roller and adhere to it. Under the action of the first spring, multiple scrapers are always in close contact with the outer wall of the rolling roller, so as to completely scrape off the water on the rolling roller and avoid water stains affecting the rolling effect of the plastic film. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the structure of the internal components distribution of the cooling tank of the present invention;

[0034] Figure 3 It is a structural schematic diagram of the wiper mechanism of the present invention;

[0035] Figure 4 For the present invention Figure 3 Schematic diagram of the structure of part A;

[0036] Figure 5 It is a schematic diagram of the structure of the overflow tank of the present invention;

[0037] Figure 6 It is a structural schematic diagram of the water removal mechanism of the present invention;

[0038] Figure 7 For the present invention Figure 6 The structural diagram of part B;

[0039] Figure 8 It is a structural schematic diagram of the driving mechanism of the present invention;

[0040] Fig. 9 It is a structural schematic diagram of the movable block of the present invention;

[0041] Fig.10 It is a structural schematic diagram of the elastic mechanism of the present invention;

[0042] Fig.11 It is a structural schematic diagram of the water receiving trough of the present invention.

[0043] In the figure: 1, cooling trough; 2, vertical plate; 3, extrusion die; 4, calendering roller; 5, wiper mechanism; 6, adjustment mechanism; 7, overflow trough; 8, first support roller; 9, water removal mechanism; 10, second support roller; 11, elastic mechanism; 12, driving mechanism; 13, water receiving trough; 14, third support roller; 15, fourth support roller; 16, fifth support roller; 17, plastic film; 1301, connecting pipe; 901, rectangular plate; 902, column; 903, movable block; 904, rectangular frame; 905, drum skin; 906, knocking ball; 907, frame plate; 908, mounting plate; 909, square rod; 910, cross bar; 911, rubber rod; 912, tension spring; 913, limit rod; 914, cylinder; 915, third spring; 916, strip plate; 917, supporting groove wheel; 501, side plate; 502, guide plate; 50 3, curved plate; 504, wiper; 505, first baffle; 506, movable rod; 507, second baffle; 508, first spring; 509, first rectangular block; 510, guide rod; 601, support plate; 602, U-shaped frame; 603, slide rail; 604, lead screw; 605, second rectangular block; 606, first motor; 401, second motor; 701, square tube; 702, water supply interface; 70 3. U-shaped mouth; 1101. fixing block; 1102. connecting rod; 1103. limiting plate; 1104. mounting block; 1105. second spring; 1201. dustproof plate; 1202. hanging plate; 1203. first rotating shaft; 1204. driving rod; 1205. third motor; 1206. connecting block; 1207. second rotating shaft; 1208. driven rod; 1209. winding wheel; 1210. pull rope. DETAILED DESCRIPTION

[0044] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0045] See also Figures 1 to 11. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0046] The present invention provides a technical solution: a plastic film cooling device, comprising a cooling trough 1, a vertical plate 2, an extrusion die head 3, a calendering roller 4, a wiper mechanism 5, an adjustment mechanism 6, an overflow trough 7, a first support roller 8, a water removal mechanism 9, a second support roller 10, an elastic mechanism 11, a driving mechanism 12, a water receiving trough 13 and a third support roller 14, a fourth support roller 15, a fifth support roller 16 and other components.

[0047] The middle part of the bottom of the cooling tank 1 is a trapezoidal platform, on which the extrusion die 3 is fixedly mounted for vertically extruding the plastic film upwards, and drainage ports are provided at the bottom of both sides of the trapezoidal platform of the cooling tank 1. The vertical plate 2 is located on one side of the cooling tank 1.

[0048] Two calendering rollers 4 are installed directly above the extrusion die 3, and the spacing between them is adjusted by an adjusting mechanism 6.

[0049] The adjustment mechanism 6 includes a support plate 601 fixedly connected to the inner wall of the cooling tank 1, two symmetrically arranged U-shaped frames 602 on the top of the support plate 601, a slide rail 603 fixedly connected to the bottom of the U-shaped frame 602, a lead screw 604 rotatably connected to the inner wall of the U-shaped frame 602, one end of the lead screw 604 is axially connected to a first motor 606 fixedly installed on the side wall of the U-shaped frame 602, an outer wall of the lead screw 604 is threadedly connected to a second rectangular block 605, a guide groove at the bottom of the second rectangular block 605 is slidably connected to the slide rail 603, and its side wall is fixedly connected to the side plate 501 of the rolling roller 4.

[0050] Both ends of each calendering roller 4 are rotatably connected to the inner side walls of the two side plates 501 through a connecting shaft, and a second motor 401 is fixedly installed on the second rectangular block 605 corresponding to each calendering roller 4, and the output end of the second motor 401 rotates through the side wall of the second rectangular block 605 and is axially connected to one end of the calendering roller 4. When in use, according to the required thickness of the plastic film, the first motor 606 on the two adjustment mechanisms 6 drives the lead screw 604 to rotate, so that the second rectangular block 605 moves, thereby adjusting the spacing between the two calendering rollers 4, and then the two second motors 401 drive the calendering rollers 4 to rotate for calendering.

[0051] Each rolling roller 4 is provided with a wiper mechanism 5, which includes two symmetrically arranged side plates 501, the top of the side plates 501 is fixedly connected to an inclined guide plate 502, and the side walls of the side plates 501 and the bottom of the guide plates 502 are fixedly connected to an arc plate 503. The outer wall of the rolling roller 4 is slidably connected to a plurality of wipers 504, and the side of the wipers 504 away from the rolling roller 4 is fixedly connected to two first baffles 505, and the side wall of the first baffle 505 is fixedly connected to a movable rod 506 that is slidably connected to the outer wall of the arc plate 503, and one end of the movable rod 506 is fixedly connected to a second baffle 507, and the outer wall of the movable rod 506 is sleeved with a first spring 508, and the two ends of the first spring 508 are respectively pressed against the inner wall of the first baffle 505 and the arc plate 503. One of the side plates 501 is fixedly connected to a first rectangular block 509, and the side wall of the first rectangular block 509 is slidably connected to a guide rod 510, and the two ends of the guide rod 510 are respectively fixedly connected to the inner wall of the cooling tank 1. When the plastic film passes through the calendering roller 4, any water remaining in the plastic mold may flow to the calendering roller 4 and adhere to it. Under the action of the first spring 508, the multiple scrapers 504 are always in close contact with the outer wall of the calendering roller 4, thereby completely scraping off the water on the calendering roller 4 to prevent water stains from affecting the calendering effect of the plastic film.

[0052] The top side wall of the guide plate 502 is a vertical surface and is tangent to the outer wall of the calendering roller 4 . Most of the water flowing downward is intercepted by the guide plate 502 and then directed to the cooling tank 1 through its inclined surface.

[0053] The inner wall of the cooling tank 1 near the top is fixedly connected with two symmetrically arranged overflow tanks 7, and the two overflow tanks 7 are connected through a square tube 701. The side wall of the square tube 701 is connected with a water supply interface 702 fixedly connected to the side wall of the cooling tank 1. The water supply interface 702 is connected to a water supply pump, and cooling water is supplied to the two overflow tanks 7 through the square tube 701. The side walls facing the two overflow tanks 7 are opened, and the side walls at the opening are fixedly connected with a U-shaped opening 703. The square tube 701 is set lower than the U-shaped opening 703. The cooling water overflows from the two U-shaped openings 703 in the two overflow tanks 7, and the water pours toward the two sides of the plastic film in a waterfall shape, so that the water is fully in contact with the plastic film. The cooling water flows from top to bottom through the plastic film to absorb heat, and the colder water above absorbs the residual heat of the upper plastic film. The water that absorbs the residual heat flows downward and then absorbs the heat of the higher temperature of the lower plastic film, thereby achieving a good cooling effect.

[0054] A first support roller 8 that can be elastically supported in the vertical direction is installed above the cooling trough 1, and the first support roller 8 is installed on the elastic mechanism 11. The elastic mechanism 11 includes a fixed block 1101, and two connecting rods 1102 are slidably connected on the fixed block 1101. The bottom of the connecting rod 1102 is fixedly connected to a limit plate 1103, and the top is fixedly connected to a mounting block 1104. The outer wall of the connecting rod 1102 is sleeved with a second spring 1105, and the two ends of the second spring 1105 are respectively pressed against the fixed block 1101 and the mounting block 1104, and one end of the first support roller 8 is rotatably connected to the side wall of the mounting block 1104. The fixed block 1101 on the elastic mechanism 11 is fixedly connected to the side wall of the cooling trough 1. After the plastic film is extruded, it passes through the calendering roller 4 and is then supported by the first support roller 8. The first support roller 8 can adapt to the tension change of the plastic film in the vertical direction through the elastic mechanism 11, and plays a role in stably supporting the plastic film.

[0055] Two water removal mechanisms 9 are installed on the side wall of the vertical plate 2, and a second support roller 10 that can be elastically supported in the horizontal direction is installed on the side between the two water removal mechanisms 9. The second support roller 10 is also installed on the elastic mechanism 11. The fixed block 1101 on the elastic mechanism 11 is fixedly connected to the side wall of the vertical plate 2, and one end of the second support roller 10 is rotatably connected to the side wall of the mounting block 1104. After the plastic film passes through the upper water removal mechanism 9, it is supported by the second support roller 10 and turns to the lower water removal mechanism 9. The elastic support of the second support roller 10 can ensure the smooth transition of the plastic film during the water removal process.

[0056] The water removal mechanism 9 includes two rectangular plates 901 fixedly installed on the side walls of the vertical plate 2, two columns 902 are fixedly connected between the two rectangular plates 901, the outer walls of the columns 902 are slidably connected with movable blocks 903, the side walls of the movable blocks 903 are fixedly connected to a rectangular frame 904, the inner wall of the rectangular frame 904 at the top port is fixedly connected to a drum skin 905, a number of knocking balls 906 are installed above the drum skin 905, and a liftable frame plate 907 is installed below the rectangular frame 904. The side wall of the rectangular frame 904 is fixedly connected to the mounting plate 908, and the side wall of the mounting plate 908 is rotatably connected to the square rod 909 through the transmission shaft. The side wall of the square rod 909 is fixedly connected to the cross bar 910, and the side wall of the cross bar 910 is fixedly connected to a plurality of rubber rods 911. The rubber rod 911 is fixedly connected to the knocking ball 906 at one end away from the cross bar 910. A tension spring 912 is hung at the bottom of one end of the square rod 909 close to the cross bar 910, and the bottom end of the tension spring 912 is hung to the top surface of the rectangular frame 904. The top surface of the rectangular frame 904 is fixedly connected to a limit rod 913, and the top surface of the limit rod 913 is blocked by the bottom of the square rod 909. The side wall of the rectangular frame 904 is fixedly connected to the cylinder 914, and the telescopic end at the bottom of the cylinder 914 is fixedly connected to the top surface of the frame plate 907.

[0057] When the plastic film passes, the plastic film stops pulling for a moment, and the cylinder 914 drives the frame plate 907 to rise and press the plastic mold on the port at the bottom of the rectangular frame 904. The drive mechanism 12 installed on the side wall of the vertical plate 2 starts to work, and the third motor 1205 in the drive mechanism 12 drives the first rotating shaft 1203 to rotate, so that the driving rod 1204 rotates, and the end of the driving rod 1204 presses down the square rod 909, and the other end of the square rod 909 is lifted, and several knocking balls 906 are lifted by the cross bar 910. As the driving rod 1204 continues to rotate, its end is separated from the square rod 909 at an instant, and under the action of the tension spring 912 pulling down the square rod 909, the bottom of the square rod 909 suddenly hits the limit rod 913, and under the action of inertia, the rubber rod 911 bends, and the knocking ball 906 continues to hit the drum skin 905 downwards, and the drum skin 905 and the plastic mold produce drum vibration together, so that the water on the lower surface of the plastic mold is separated under the vibration. At the same time, when the driving rod 1204 is separated from the square rod 909, the other end of the driving rod 1204 moves the driven rod 1208, and the driven rod 1208 drives the second rotating shaft 1207 to rotate, and the reel 1209 rotates to reel the pull rope 1210, and the pull rope 1210 pulls the movable block 903 upward, drives the rectangular frame 904 to rise, and then lifts the plastic mold upward to prevent the plastic film from repeatedly adhering to the water that falls off due to vibration. When the plastic film continues to be pulled, the water removal mechanism 9 below shakes off the water on the other surface of the plastic film in the same principle, so that the water on both sides can be removed.

[0058] The driving mechanism 12 includes a dustproof plate 1201 fixedly installed on the side wall of the vertical plate 2, the bottom of the dustproof plate 1201 is fixedly connected to the hanging plate 1202, the hanging plate 1202 rotates close to the bottom side wall and is connected to the first rotating shaft 1203, the outer wall of the first rotating shaft 1203 is fixedly connected to the driving rod 1204, and the third motor 1205 axially connected to one end of the first rotating shaft 1203 is fixedly installed on the hanging plate 1202, and the end of the driving rod 1204 is in a blocking engagement with the top surface of the end of the square rod 909. The side wall of the hanging plate 1202 is fixedly connected to the connecting block 1206, and the side wall of the connecting block 1206 is rotatably connected to the second rotating shaft 1207. The outer wall of the second rotating shaft 1207 is fixedly connected to the driven rod 1208. One end of the second rotating shaft 1207 is fixedly connected to the winding wheel 1209. The winding wheel 1209 is wound with a pull rope 1210. The end of the pull rope 1210 away from the winding wheel 1209 is fixedly connected to the top surface of the movable block 903. The outer wall of the column 902 is sleeved with a third spring 915. The two ends of the third spring 915 are respectively pressed against the bottom of the upper rectangular plate 901 and the top surface of the movable block 903. The top surface of the upper rectangular plate 901 is fixedly connected to the strip plate 916. The side wall of the strip plate 916 is rotatably connected to the support groove wheel 917 through a pin shaft. The pull rope 1210 is supported in the support groove wheel 917 and turns vertically downward. The pull rope 1210 moves vertically downward through the rectangular plate 901. The driving mechanism 12 realizes the function of simultaneously driving the striking ball 906 to strike the drum skin 905 and the rectangular frame 904 to rise in the above manner.

[0059] The side wall of the vertical plate 2 is fixedly connected to the water receiving trough 13, and the bottom of the water receiving trough 13 is tilted downward to connect to the connecting pipe 1301. The bottom of the connecting pipe 1301 is connected to the side of the cooling trough 1 to collect the water falling during the water removal process. The side wall of the vertical plate 2 is rotatably connected to the third support roller 14, the fourth support roller 15 and the fifth support roller 16 through the connecting shaft. The third support roller 14 is located on the side of the upper wiper mechanism 5, the fourth support roller 15 is located on the side of the lower wiper mechanism 5 and directly below the third support roller 14, and the fifth support roller 16 is located on the other side of the lower wiper mechanism 5 and is arranged close to one side of the cooling trough 1. These support rollers are used to assist in supporting and guiding the plastic film to ensure the smooth operation of the plastic film in the cooling device.

[0060] A method for using a plastic film cooling device comprises the following steps:

[0061] Step 1: the extrusion die 3 is connected to the extruder, and the extruder is installed below the cooling tank 1. The extrusion die 3 extrude the plastic film 17, and the plastic film 17 passes between the two calendering rollers 4, and then passes between the two overflow tanks 7. The plastic film 17 is supported by the first support roller 8 and then turns to the water removal mechanism 9 above. The plastic film 17 passes between the rectangular frame 904 and the frame plate 907;

[0062] Then, the plastic film 17 is supported by the second support roller 10 and turned to the dewatering mechanism 9 below, and passes through between the rectangular frame 904 and the frame plate 907, and is subsequently pulled by other process equipment;

[0063] Step 2: According to the required thickness of the plastic film, the first motor 606 on the two adjustment mechanisms 6 drives the second rectangular block 605 to move through the lead screw 604, thereby adjusting the distance between the two calendering rollers 4;

[0064] The two second motors 401 drive the two calendering rollers 4 to rotate and calender;

[0065] The water supply interface 702 is connected to the water supply pump, and the cooling water is supplied to the two overflow grooves 7 through the square tube 701. The cooling water overflows from the two U-shaped openings 703 in the two overflow grooves 7, and the water pours toward the two sides of the plastic film in a waterfall shape, so that the water is fully in contact with the plastic film;

[0066] Step 3: Cooling water flows from top to bottom through the plastic film to absorb heat. The colder water above absorbs the remaining heat of the plastic film above. The water that absorbs the remaining heat flows downward and then absorbs the heat of the higher temperature of the plastic film below, so that the cooling effect is good.

[0067] Most of the water flowing downward is intercepted by the guide plate 502 and then directed to the cooling tank 1 through its inclined surface;

[0068] Some of the water remaining in the plastic mold may flow onto the calendering roller 4 and adhere to the calendering roller 4; the plurality of scrapers 504 will completely scrape off the water on the calendering roller 4 to prevent the water stains from affecting the calendering effect of the plastic film;

[0069] Step 4, in the upper water removal mechanism 9:

[0070] The cylinder 914 drives the frame plate 907 to rise and press the plastic mold against the port at the bottom of the rectangular frame 904. The third motor 1205 drives the first rotating shaft 1203 to rotate, and the driving rod 1204 rotates. The end of the driving rod 1204 presses down the square rod 909, and the other end of the square rod 909 is lifted. Then, a number of knocking balls 906 are lifted by the cross bar 910. As the driving rod 1204 continues to rotate, the end of the driving rod 1204 is separated from the square rod 909. Under the action of the tension spring 912 pulling down the square rod 909, the bottom of the square rod 909 suddenly hits the limit rod 913. Under the action of inertia, the rubber rod 911 bends, and the knocking ball 906 continues to go down and hits the drum skin 905. The drum skin 905 and the plastic mold generate vibration together. The water on the lower surface of the plastic mold is separated under the action of vibration.

[0071] When the driving rod 1204 is separated from the square rod 909, the other end of the driving rod 1204 moves the driven rod 1208, and the driven rod 1208 drives the second rotating shaft 1207 to rotate, and the reel 1209 rotates to reel the pull rope 1210, and the pull rope 1210 pulls the movable block 903 upward, which drives the rectangular frame 904 to rise, and then lifts the plastic mold upward to prevent the plastic film from repeatedly adhering to the water that falls off due to vibration;

[0072] Step 5, continue to pull the plastic film, and then the water removal mechanism 9 below shakes off the water on the other surface of the plastic film, so that the water on both sides can be removed;

[0073] It is then pulled on by other process equipment, including trimming equipment and winding equipment.

[0074] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A plastic film cooling device, comprising a cooling trough (1) and a vertical plate (2), characterized in that: An extrusion die (3) is fixedly installed at the bottom of the cooling trough (1) for vertically extruding a plastic film; two rolling rollers (4) are installed directly above the extrusion die (3); two water scraping mechanisms (5) are installed on the two rolling rollers (4); the spacing between the two rolling rollers (4) is adjusted by an adjustment mechanism (6); two overflow grooves (7) are fixedly connected to the inner wall of the cooling trough (1) near the top; a first support roller (8) that can be elastically supported in the vertical direction is installed above the cooling trough (1); two water removal mechanisms (9) that are arranged up and down are installed on the side wall of the vertical plate (2); a second support roller (10) that can be elastically supported in the horizontal direction is installed on the side between the two water removal mechanisms (9); The dewatering mechanism (9) comprises two rectangular plates (901) fixedly mounted on the side walls of the vertical plate (2) in an upper and lower manner, two vertical columns (902) are fixedly connected between the two rectangular plates (901), movable blocks (903) are slidably connected to the outer walls of the two vertical columns (902), a rectangular frame (904) is fixedly connected to the side walls of the movable blocks (903), a drum skin (905) is fixedly connected to the inner wall at the top port of the rectangular frame (904), a plurality of knocking balls (906) are mounted above the drum skin (905), and a liftable frame plate (907) is mounted below the rectangular frame (904); A driving mechanism (12) is installed on the side of the vertical plate (2), and the driving mechanism (12) is used to drive the striking ball (906) to strike the drum skin (905) and drive the rectangular frame (904) to rise at the same time.

2. A plastic film cooling device according to claim 1, characterized in that: The middle part of the bottom of the cooling trough (1) is arranged as a trapezoidal platform, the extrusion die head (3) is fixedly mounted on the trapezoidal platform, and drainage ports are provided at the bottom of both sides of the trapezoidal platform of the cooling trough (1).

3. A plastic film cooling device according to claim 1, characterized in that: The wiper mechanism (5) comprises two symmetrically arranged side plates (501), the tops of the two side plates (501) are fixedly connected with inclined guide plates (502), the side walls of the two side plates (501) and the bottoms of the guide plates (502) are fixedly connected with arc plates (503), the outer wall of the rolling roller (4) is slidably connected with a plurality of wiper plates (504), the side of the wiper plate (504) away from the rolling roller (4) is fixedly connected with two first baffle plates (505), the side wall of the first baffle plate (505) is fixedly connected with a movable rod (506) which is slidably connected with the outer wall of the arc plate (503), and the end of the movable rod (506) away from the first baffle plate (505) is fixedly connected with a second The baffle (507) is provided with a first spring (508) on the outer wall of the movable rod (506), and the two ends of the first spring (508) are respectively pressed against the inner walls of the first baffle (505) and the arc plate (503); the side wall of one of the side plates (501) is fixedly connected with a first rectangular block (509), and the side wall of the first rectangular block (509) is slidably connected with a guide rod (510), and the two ends of the guide rod (510) are respectively fixedly connected with the inner wall of the cooling groove (1), and the two ends of the rolling roller (4) are rotatably connected with the inner walls of the two side plates (501) through a connecting shaft, and the side wall of the top of the guide plate (502) is vertical, and the vertical surface is tangent to the outer wall of the rolling roller (4).

4. A plastic film cooling device according to claim 3, characterized in that: The adjusting mechanism (6) comprises a support plate (601) fixedly connected to the inner wall of the cooling tank (1); the top of the support plate (601) is fixedly connected to two symmetrically arranged U-shaped frames (602); the bottom of the U-shaped frame (602) is fixedly connected to a slide rail (603); a lead screw (604) is rotatably connected to the inner wall of the U-shaped frame (602); one end of the lead screw (604) is axially connected to a first motor (606) fixedly installed on the side wall of the U-shaped frame (602); and the lead screw (604) is connected to the inner wall of the U-shaped frame (602). 04), the outer wall of which is threadedly connected with a second rectangular block (605), the bottom of which is provided with a guide groove, and the inner wall of the guide groove is slidably connected to the outer wall of the slide rail (603); the side wall of the second rectangular block (605) is fixedly connected to the side plate (501), the second motor (401) is fixedly installed on the second rectangular block (605), the output end of the second motor (401) rotates through the side wall of the second rectangular block (605), and is axially connected to one end of the calendering roller (4).

5. A plastic film cooling device according to claim 1, characterized in that: The two overflow grooves (7) are connected through a square tube (701); the side wall of the square tube (701) is connected to a water supply interface (702) fixedly connected to the side wall of the cooling groove (1); the side walls of the two overflow grooves (7) facing each other are open, and the side walls at the openings of the overflow grooves (7) are fixedly connected to a U-shaped opening (703); the square tube (701) is arranged below the U-shaped opening (703).

6. A plastic film cooling device according to claim 1, characterized in that: The first supporting roller (8) and the second supporting roller (10) are respectively mounted on two elastic mechanisms (11), and the elastic mechanisms (11) include a fixed block (1101), and two connecting rods (1102) are slidably connected to the fixed block (1101), and the bottoms of the two connecting rods (1102) are fixedly connected to a limiting plate (1103), and the tops are fixedly connected to a mounting block (1104); the outer wall of the connecting rod (1102) is provided with a second spring (1105), and the two ends of the second spring (1105) are respectively The first support roller (8) is tightly pressed against a fixed block (1101) and a mounting block (1104); the fixed block (1101) on the elastic mechanism (11) where the first support roller (8) is located is fixedly connected to the side wall of the cooling trough (1); the fixed block (1101) on the elastic mechanism (11) where the second support roller (10) is located is fixedly connected to the side wall of the vertical plate (2); one end of the first support roller (8) is rotatably connected to the side wall of the mounting block (1104); and one end of the second support roller (10) is rotatably connected to the side wall of the mounting block (1104).

7. A plastic film cooling device according to claim 1, characterized in that: The side wall of the rectangular frame (904) is fixedly connected to a mounting plate (908), the side wall of the mounting plate (908) is rotatably connected to a square rod (909) via a transmission shaft, the side wall of the square rod (909) is fixedly connected to a cross bar (910), the side wall of the cross bar (910) is fixedly connected to a plurality of rubber rods (911), one end of the rubber rod (911) away from the cross bar (910) is fixedly connected to the knocking ball (906), and the square rod (909) is close to the cross bar (910). A tension spring (912) is hung at the bottom of one end of the rod (910), the bottom end of the tension spring (912) is hung on the top surface of the rectangular frame (904), the top surface of the rectangular frame (904) is fixedly connected to a limiting rod (913), the top surface of the limiting rod (913) is blocked by the bottom of the square rod (909); a cylinder (914) is fixedly connected to the side wall of the rectangular frame (904), and the telescopic end at the bottom of the cylinder (914) is fixedly connected to the top surface of the frame plate (907).

8. A plastic film cooling device according to claim 7, characterized in that: The driving mechanism (12) comprises a dustproof plate (1201) fixedly mounted on the side wall of the vertical plate (2); the bottom of the dustproof plate (1201) is fixedly connected to a hanging plate (1202); a first rotating shaft (1203) is rotatably connected to the side wall of the hanging plate (1202) close to the bottom; a driving rod (1204) is fixedly connected to the outer wall of the first rotating shaft (1203); a third motor (1205) axially connected to one end of the first rotating shaft (1203) is fixedly mounted on the hanging plate (1202); an end of the driving rod (1204) is rotatably connected to an end of the square rod (909); The top surface of the part is in a blocking fit, the side wall of the hanging plate (1202) is fixedly connected with a connecting block (1206), the side wall of the connecting block (1206) is rotatably connected with a second rotating shaft (1207), the outer wall of the second rotating shaft (1207) is fixedly connected with a driven rod (1208), one end of the second rotating shaft (1207) is fixedly connected with a winding wheel (1209), a pull rope (1210) is wound in the winding wheel (1209), and the end of the pull rope (1210) away from the winding wheel (1209) is fixedly connected to the top surface of the movable block (903); The outer wall of the column (902) is sleeved with a third spring (915), and the two ends of the third spring (915) are respectively pressed against the bottom of the upper rectangular plate (901) and the top surface of the movable block (903); the top surface of the upper rectangular plate (901) is fixedly connected with a strip plate (916), and the side wall of the strip plate (916) is rotatably connected with a supporting groove wheel (917) through a pin shaft, and the pull rope (1210) is supported in the supporting groove wheel (917) and turns vertically downward; the pull rope (1210) moves vertically downward and passes through the rectangular plate (901).

9. A plastic film cooling device according to claim 1, characterized in that: The side wall of the vertical plate (2) is fixedly connected with a water receiving groove (13), and the bottom of the water receiving groove (13) is connected with a connecting pipe (1301) which is inclined downward, and the bottom of the connecting pipe (1301) is connected with the side of the cooling groove (1); the side wall of the vertical plate (2) is rotatably connected with a third support roller (14), a fourth support roller (15) and a fifth support roller (16) through a connecting shaft; the third support roller (14) is located on the side of the wiper mechanism (5) above, the fourth support roller (15) is located on the side of the wiper mechanism (5) below, the fourth support roller (15) is located directly below the third support roller (14), the fifth support roller (16) is located on the other side of the wiper mechanism (5) below, and the fifth support roller (16) is arranged on a side close to the cooling groove (1).

10. A method for using a plastic film cooling device, characterized in that: A plastic film cooling device according to any one of claims 1 to 9 is used, comprising the following steps: Step 1: The extrusion die (3) extrude the plastic film, pass the plastic film between two calender rollers (4), and then pass it between two overflow grooves (7). The plastic film is supported by the first support roller (8) and then turns to the upper water removal mechanism (9). The plastic film passes between the rectangular frame (904) and the frame plate (907); The plastic film is then supported by the second support roller (10) and turned to the water removal mechanism (9) below, and passes through the rectangular frame (904) and the frame plate (907), and is subsequently pulled by other process equipment; Step 2: According to the required thickness of the plastic film, the distance between the two calendering rollers (4) is adjusted by the adjusting mechanism (6), and the two calendering rollers (4) are rotated to calender; at the same time, cooling water is supplied to the two overflow grooves (7), and the cooling water overflows from the two overflow grooves (7) to form a waterfall and pour toward the two sides of the plastic film; Step 3: Cooling water flows from top to bottom through the plastic film to absorb heat, and two wiper mechanisms (5) drain the water into the cooling tank (1); Step 4: In the water removal mechanism (9) at the top, the frame plate (907) rises to press the plastic mold against the port at the bottom of the rectangular frame (904), and the driving mechanism (12) drives a plurality of knocking balls (906) to knock the drum skin (905), so that the drum skin (905) and the plastic mold generate vibration together; the water on the lower surface of the plastic mold is separated under the vibration, and the driving mechanism (12) simultaneously drives the rectangular frame (904) to rise, lifting the plastic mold upward; The water that is shaken off falls; Step 5: The water removal mechanism (9) below then shakes off the water on the other surface of the plastic film.

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