Thin film hot stretching device with water ripple removing function

Abstract

The utility model discloses a thin film hot stretching device with a water ripple removing function, relates to the technical field of thin film production, and aims to solve the problems that thin films with different thicknesses are not easy to process by a hot stretching device, and the processing efficiency is influenced because the device needs to be shut down for a long time when a water absorption structure is replaced. A heating box is fixedly connected to one side of the outer wall of one end of the back plate, two stretching rollers distributed in a mirror image mode are installed on the outer wall of one end of the back plate, and through holes are formed in the outer walls of the two sides of the heating box in a penetrating mode. The height of an opening of a through hole is adjusted by screwing a locking bolt, a locking nut is unscrewed, the distance between the first conveying roller and the second conveying roller is adjusted, a driving gear is driven by a motor to drive a driven gear to rotate, and the position of the water suction roller with low water suction efficiency is replaced. The problems that thin films with different thicknesses are not easy to process by a hot stretching device, and the processing efficiency is influenced due to the fact that the device needs to be shut down for a long time when a water absorption structure is replaced are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of film production, in particular to a film heat stretching device with the function of removing water ripples. Background Art

[0002] BOPP film is a biaxially oriented polypropylene film with high tensile strength, impact strength, rigidity, toughness and good transparency. It is colorless, odorless, tasteless, non-toxic, and has low surface energy. It requires corona treatment before printing or gluing and is widely used in various packaging fields. In the production process of BOPP film, a hot stretching device is required to process it.

[0003] The prior art discloses a film stretching machine for film production with patent announcement number CN220031167U. The above patent solves the problems of short heating time, incomplete and uneven heating through the heating plate on the circulating water tank and the cooling plate on the box table. The water storage tank and water pump inside the circulating water tank avoid water resource waste and reduce heating costs. The outer and inner plates provided on the sides of the second stretching roller and the third stretching roller solve the problem of water droplets forming on the surface of the film under alternating hot and cold changes, which affects storage and packaging. However, the following deficiencies still exist in actual use: when the hot stretching device is in use, it can usually only stretch films of a single thickness specification, and its practicality is poor. Moreover, when the structure for removing water mist and water droplets on the surface of the film is replaced, the entire device needs to be shut down for a long time, which greatly reduces the processing efficiency of film stretching.

[0004] Therefore, a film heat stretching device with water ripple removal function is needed to solve the problems in the existing technology that the heat stretching device is not easy to process films of different thicknesses, and the replacement of the water absorption structure requires the device to be shut down for a long time, thereby affecting the processing efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a film heat stretching device with a water ripple removal function, so as to solve the problems in the prior art that the heat stretching device is not easy to process films of different thicknesses, and the replacement of the water absorption structure requires the device to be shut down for a long time, thereby affecting the processing efficiency.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a film heat stretching device with a water ripple removal function, comprising a back plate, a heating box fixedly connected to one side of the outer wall of one end of the back plate, two stretching rollers in mirror-image distribution are installed on the outer wall of one end of the back plate, through holes are opened through the outer walls of both sides of the heating box, two groups of parallel hot air inlet pipes are installed on the top and bottom surfaces of the heating box, a first conveying roller is installed on the inner wall of one end of the heating box, an adjustment mechanism is provided on the inner wall of one end of the heating box, and two groups of symmetrically distributed removal components are provided on the outer wall of one end of the back plate;

[0007] The adjustment mechanism includes a slide seat, which is fixedly connected to the inner wall of one end of the heating box. A slider is slidably connected inside the slide seat. A movable groove is opened through the outer wall of one end of the slide seat. A second conveying roller is installed at the center of the outer wall of one end of the slider through the movable groove. A screw is fixedly connected to the outer wall of one side of the slider, and a locking nut is threadedly connected to the outer surface of the screw.

[0008] It should be noted in the scheme that the removal component includes a rotating shaft and a motor, the rotating shaft is rotatably connected to the outer wall of one end of the back plate, the outer wall of one end of the rotating shaft is fixedly connected to a triangular plate, the outer surface of the rotating shaft is fastened with a driven gear, and three circumferentially distributed water-absorbing rollers are installed on the outer wall of one end of the triangular plate. The motor is embedded in the outer wall of one end of the back plate, and the output end of the motor is coaxially fixedly connected to the driving gear.

[0009] It is further worth mentioning that the outer walls on both sides of the heating box are fixedly connected to a U-shaped frame, a baffle is slidably connected inside the U-shaped frame, a locking bolt is threadedly inserted at the center of the outer wall on one side of the transverse section of the U-shaped frame, and a movable door is provided at the other end of the heating box.

[0010] It should be further explained that two symmetrically distributed slow-speed fans are installed on the outer wall of one end of the back panel, a winding roller is installed on the other side of the outer wall of one end of the back panel, and a support platform is fixedly connected to the bottom surface of the back panel.

[0011] As a preferred embodiment, the driven gear is meshed with the driving gear, and the slow fan is located between the stretching roller and the removal assembly.

[0012] As a preferred embodiment, the movable door is a transparent structure, and a handle is fixedly connected to one side of the outer wall of one end of the movable door.

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

[0014] 1. By turning the locking bolt, the opening height of the through hole is adjusted according to the thickness of the film to be processed. Through the action of the adjustment mechanism, the locking nut is loosened to adjust the distance between the first conveyor roller and the second conveyor roller. The film with different thickness specifications can be hot-stretched. It has high applicability and effectively avoids the problem that the hot stretching device is difficult to process films of different thicknesses.

[0015] 2. By removing the function of the component, the water absorption roller is set to remove the water mist on the outer surface of the film. The motor drives the active gear to drive the driven gear to rotate, and the position of the water absorption roller with low water absorption efficiency is replaced to ensure the normal progress of the hot stretching process. It effectively avoids the problem that the device needs to be shut down for a long time to replace the water absorption structure, thereby affecting the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the front cross-sectional structure of the heating box of the present invention;

[0018] Figure 3 This is a side structural diagram of the slide seat of the present invention;

[0019] Figure 4 This is a schematic diagram of the side cross-sectional structure of the back plate of the present utility model;

[0020] Figure 5 This is a side view of a triangular plate structure of the present invention.

[0021] Numbers in the figure: 1. Back plate; 2. Heating box; 3. Stretching roller; 4. Through hole; 5. Hot air inlet tube; 6. First conveyor roller; 7. Adjustment mechanism; 71. Slide seat; 72. Slider; 73. Movable groove; 74. Second conveyor roller; 75. Screw; 76. Locking nut; 8. Removal component; 81. Rotating shaft; 82. Triangular plate; 83. Driven gear; 84. Water-absorbing roller; 85. Motor; 86. Driving gear; 9. U-shaped frame; 10. Baffle; 11. Locking bolt; 12. Movable door; 13. Slow fan; 14. Winding roller; 15. Support table. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example: Figure 1-Figure 5 As shown, the utility model provides a technical solution, including a backboard 1, a heating box 2 is fixedly connected to one side of the outer wall of one end of the backboard 1, two stretching rollers 3 with mirror image distribution are installed on the outer wall of one end of the backboard 1, through holes 4 are opened through the outer walls of both sides of the heating box 2, two groups of hot air inlet pipes 5 with parallel distribution are installed on the top and bottom surfaces of the heating box 2, a first conveying roller 6 is installed on the inner wall of one end of the heating box 2, an adjustment mechanism 7 is provided on the inner wall of one end of the heating box 2, and two groups of symmetrically distributed removal components 8 are provided on the outer wall of one end of the backboard 1;

[0024] The adjustment mechanism 7 includes a slide 71, which is fixedly connected to the inner wall of one end of the heating box 2. A slider 72 is slidably connected inside the slide 71. A movable groove 73 is penetrated through the outer wall of one end of the slide 71. A second conveying roller 74 is installed at the center of the outer wall of one end of the slider 72 through the movable groove 73. A screw 75 is fixedly connected to the outer wall of one side of the slider 72, and a locking nut 76 is threadedly connected to the outer surface of the screw 75.

[0025] Further as Figure 1 、 Figure 4 and Figure 5 As shown, it is worth mentioning that the removal component 8 includes a rotating shaft 81 and a motor 85. The rotating shaft 81 is rotatably connected to the outer wall of one end of the back plate 1. The outer wall of one end of the rotating shaft 81 is fixedly connected to a triangular plate 82. The outer surface of the rotating shaft 81 is fastened with a driven gear 83. Three circumferentially distributed water-absorbing rollers 84 are installed on the outer wall of one end of the triangular plate 82. The motor 85 is embedded in the outer wall of one end of the back plate 1, and the output end of the motor 85 is coaxially fixedly connected to a driving gear 86.

[0026] Further as Figure 1 and Figure 2 As shown, it is worth mentioning that the outer walls on both sides of the heating box 2 are fixedly connected with a U-shaped frame 9, a baffle 10 is slidably connected inside the U-shaped frame 9, a locking bolt 11 is threadedly inserted at the center of the outer wall on one side of the transverse section of the U-shaped frame 9, and a movable door 12 is provided at the other end of the heating box 2.

[0027] Further as Figure 1 As shown, it is worth mentioning that two symmetrically distributed slow fans 13 are installed on the outer wall of one end of the back panel 1, a winding roller 14 is installed on the other side of the outer wall of one end of the back panel 1, and a support platform 15 is fixedly connected to the bottom surface of the back panel 1.

[0028] Further as Figure 1 and Figure 4As shown, it is worth mentioning that the driven gear 83 is meshed with the driving gear 86, and the driving gear 86 is driven to rotate by the motor 85, and the driving gear 86 drives the driven gear 83 to rotate, and the positions of the three water-absorbing rollers 84 are adjusted so that the water-absorbing rollers 84 can better fit the film. The slow fan 13 is located between the stretching roller 3 and the removal component 8 to facilitate cooling the film after heat stretching.

[0029] Further as Figure 1 As shown, it is worth mentioning that the movable door 12 is a transparent structure, which is convenient for observing the working status inside the heating box 2. A handle is fixedly connected to one side of the outer wall of one end of the movable door 12, which is convenient for the staff to open the movable door 12 to adjust the height of the second conveying roller 74.

[0030] In summary: when the film heat stretching device is in use, first, according to the thickness of the film to be heat stretched, loosen the locking bolts 11 on both sides of the heating box 2 and adjust the bottom height of the baffle 10, so as to adjust the opening height of the through hole 4, then open the movable door 12, turn the locking nut 76 to release the restriction on the slider 72, and under the sliding cooperation between the slide 71 and the slider 72, push the second conveyor roller 74 upward to adjust the distance between the first conveyor roller 6 and the second conveyor roller 74. After adjusting to the appropriate distance, rotate the locking nut 76 in the opposite direction to re-lock the slider 72, and then insert one end of the film through the hole 4 from one side, passing through the first conveyor roller 6 and the second conveyor roller 74. The film is passed through the hole 4 on the other side, and after being wound around the two stretching rollers 3, it passes between the two adjacent water-absorbing rollers 84 and is finally wound around the winding roller 14. Finally, the external heating device is connected to the hot air inlet pipe 5, and the two motors 85 are turned on at the same time to drive the driving gear 86 to rotate, and the driven gear 83 is driven to rotate under the meshing action, thereby driving the triangular plate 82 to rotate, and any one of the water-absorbing rollers 84 on the two groups of removal components 8 is adjusted to fit the outer surface of the film. After turning on the slow-speed fan 13, the film is subjected to heat stretching operation, and films of different thickness specifications can be heat stretched, which effectively avoids the problem that the heat stretching device is not easy to process films of different thicknesses.

[0031] After the water absorption roller 84 has been used for a period of time, the water absorption efficiency of the water absorption roller 84 will decrease. At this time, the motor 85 is turned on to drive the driving gear 86 to rotate, and the driven gear 83 is driven to rotate under the meshing action, thereby driving the triangular plate 82 to rotate, and the position of the water absorption roller 84 with reduced water absorption efficiency is adjusted. Any unused water absorption roller 84 on the two groups of removal components 8 is adjusted to fit the outer surface of the film to ensure the normal progress of the hot stretching process, and effectively avoid the problem that the device needs to be shut down for a long time to replace the water absorption structure, thereby affecting the processing efficiency.

[0032] The motor 85 and the slow-speed fan 13 can be purchased on the market. The motor 85 and the slow-speed fan 13 are equipped with a power supply. They are mature technologies in this field and have been fully disclosed. Therefore, they are not repeated in the specification.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A film thermal stretching device with a water ripple removal function, comprising a back plate (1), characterized in that: A heating box (2) is fixedly connected to one side of the outer wall of one end of the backboard (1); two stretching rollers (3) distributed in a mirror image are installed on the outer wall of one end of the backboard (1); through holes (4) are opened through the outer walls of both sides of the heating box (2); two groups of hot air inlet pipes (5) distributed in parallel are installed on the top and bottom surfaces of the heating box (2); a first conveying roller (6) is installed on the inner wall of one end of the heating box (2); an adjustment mechanism (7) is provided on the inner wall of one end of the heating box (2); and two groups of removal components (8) distributed in a symmetrical manner are provided on the outer wall of one end of the backboard (1); The adjusting mechanism (7) comprises a slide seat (71), the slide seat (71) is fixedly connected to the inner wall of one end of the heating box (2), a slider (72) is slidably connected inside the slide seat (71), a movable groove (73) is provided through the outer wall of one end of the slide seat (71), a second conveying roller (74) is installed at the center of the outer wall of one end of the slider (72) through the movable groove (73), a screw (75) is fixedly connected to the outer wall of one side of the slider (72), and a locking nut (76) is threadedly connected to the outer surface of the screw (75).

2. The film thermal stretching device with water ripple removal function according to claim 1, characterized in that: The removal assembly (8) comprises a rotating shaft (81) and a motor (85), wherein the rotating shaft (81) is rotatably connected to the outer wall of one end of the back plate (1), the outer wall of one end of the rotating shaft (81) is fixedly connected to a triangular plate (82), the outer surface of the rotating shaft (81) is tightly sleeved with a driven gear (83), the outer wall of one end of the triangular plate (82) is mounted with three circumferentially distributed water-absorbing rollers (84), the motor (85) is embedded and mounted on the outer wall of one end of the back plate (1), and the output end of the motor (85) is coaxially fixedly connected to a driving gear (86).

3. The film thermal stretching device with water ripple removal function according to claim 2, characterized in that: The outer walls on both sides of the heating box (2) are fixedly connected to U-shaped frames (9), a baffle (10) is slidably connected inside the U-shaped frame (9), a locking bolt (11) is threadedly inserted at the center of the outer wall of one side of the transverse section of the U-shaped frame (9), and a movable door (12) is provided at the other end of the heating box (2).

4. The film thermal stretching device with water ripple removal function according to claim 3, characterized in that: Two symmetrically distributed slow-speed fans (13) are installed on the outer wall of one end of the backboard (1), a winding roller (14) is installed on the other side of the outer wall of one end of the backboard (1), and a support platform (15) is fixedly connected to the bottom surface of the backboard (1).

5. The film thermal stretching device with water ripple removal function according to claim 4, characterized in that: The driven gear (83) is meshedly connected with the driving gear (86), and the slow fan (13) is located between the stretching roller (3) and the removal assembly (8).

6. The film thermal stretching device with water ripple removal function according to claim 5, characterized in that: The movable door (12) is a transparent structure, and a handle is fixedly connected to one side of the outer wall of one end of the movable door (12).

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