Hot air shrinking device for shoe film machine

Abstract

The utility model relates to the technical field of shoe film machines, and provides a hot air shrinking device for a shoe film machine, which comprises a shell, a heating wire cover, a heating wire, a first fan and an air supply pipeline, the heating wire cover is positioned on the left side, the right side and / or the rear side of a treading panel of the shell and is tightly arranged on the shell, and the first fan is arranged on the shell. The heating wire is arranged in the heating wire cover, a plurality of air outlet holes are formed in the inner side face of the heating wire cover at intervals, the first fan is arranged in the shell, an air inlet of the air supply pipeline is communicated with the air outlet face of the first fan, a plurality of air outlets are formed in the air supply pipeline, and the air outlet holes are communicated with the air outlet face of the first fan. And the air outlet is communicated with the interior of the heating wire cover.

Description

Technical Field

[0001] The utility model relates to the technical field of shoe film machines, in particular to a hot air shrinking device used for shoe film machines. Background Art

[0002] The traditional shoe film machine is a linear film discharger. After the heat shrink film is transported to the pedal area, the film is cut flatly by a blade moving up and down. The foot steps on the pedal in the pedal area, and the pedal sinks to release the hot air outlet. The middle of the heat shrink film is turned up along with the pedal sinking, and the edge is wrapped around the bottom of the shoe under hot air blowing, as shown in Chinese patent No. 200980124358.2, named shoe cover machine and method for film coating using shoe cover machine.

[0003] The process of wrapping heat shrink film of traditional shoe film machine is shown in the figure Figure 1 Because the pedal in the traditional shoe film machine sinks to release hot air, the heating element and the hot air channel are both arranged inside the shoe film machine housing, the structure is complex and the assembly is cumbersome.

[0004] Therefore, in order to solve the above problems, this case proposes a hot air shrinking device with a simplified shoe film machine structure. Utility Model Content

[0005] Therefore, in view of the above problems, the utility model proposes a hot air shrinking device for a shoe film machine.

[0006] In order to solve the above technical problems, the solution adopted by the utility model is: a hot air shrinkage device for a shoe film machine, comprising a shell, and also comprising a heating wire cover, a heating wire, a first fan, and an air supply duct. The heating wire cover is located on the left and right sides and / or the rear side of the stepping panel of the shell and is tightly arranged on the shell. The heating wire is arranged in the heating wire cover, and a plurality of air outlet holes are arranged on the inner side surface of the heating wire cover at intervals. The first fan is arranged inside the shell, and the air inlet of the air supply duct is connected with the air outlet surface of the first fan. The air supply duct is provided with a plurality of air outlets, and the air outlets are connected with the inside of the heating wire cover.

[0007] A further improvement is that the heating wire cover is integrally arranged on the shell, and an installation opening for disassembling and assembling the heating wire is opened on the shell below the heating wire cover, and a sealing plate is detachably arranged on the installation opening, and the air outlet of the air supply duct is tightly arranged on the sealing plate.

[0008] A further improvement is that the heating wire cover is detachably and tightly arranged on the shell, and the air outlet of the air supply duct is tightly arranged on the shell.

[0009] A further improvement is that: the shape of the heating wire cover is U-shaped.

[0010] A further improvement is that: the inner side surfaces of the heating wire cover located on both sides of the rear end of the pressing panel are integrally provided with an inverted eight-shaped guiding slope for guiding the three-dimensional free end of the heat shrink film after hot-melt clamping to discharge centrally to the pressing panel.

[0011] A further improvement is that an air flow channel for air flow is provided on the heating wire cover between the guide inclined surfaces.

[0012] By adopting the above technical solution, the beneficial effects of the utility model are:

[0013] In this case, the heat shrink film is already folded upward when it enters the stepping panel, so there is no need to set a sinking pedal on the stepping panel. Therefore, a heating wire cover is used to set the heating wire on the stepping panel, i.e., the upper surface of the shell, to simplify the hot air channel inside the shell, which is conducive to reducing the vertical height of the shoe film machine and making the shoe film machine smaller.

[0014] A further beneficial effect is that the heating wire cover can be integrated with the housing or separated from the housing, which can be selected according to actual processing. When integrated, a sealing plate and a gasket seal are required to be tightly connected with the housing, and the air outlet of the air supply duct can be directly integrated or glued and tightly set on the sealing plate. When separated, the heating wire cover gasket seal is tightly locked on the housing, and the air outlet of the air supply duct passes through the housing and is glued and tightly set on the housing.

[0015] A further beneficial effect is that the heating wire cover is provided with an integral guide slope on the inner side surfaces on both sides of the rear end of the pressing panel, and the guide slope facilitates guiding the ship-shaped three-dimensional free end after the heat shrink film is hot-melt clamped to discharge the material to the center of the pressing panel.

[0016] A further beneficial effect is that the airflow channel arranged on the heating wire cover between the guide slopes can prevent the heat shrink film from floating upward due to airflow when it is discharged, and at the same time, the tip of the free end of the boat-shaped three-dimensional body can move to the airflow channel, which is beneficial to further ensure that the heat shrink film is set in the center, making it convenient for the user to step on the middle position of the heat shrink film, and is beneficial for the heat shrink film cover to be flatly mounted on the shoe body after heat shrinkage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the heat shrink film wrapping process of the existing shoe film machine in the background technology.

[0018] Figure 2 It is a top view structural schematic diagram of a three-dimensional shoe film coating machine according to an embodiment of the utility model.

[0019] Figure 3 It is a schematic diagram of the internal structure of a three-dimensional shoe film coating machine according to an embodiment of the utility model.

[0020] Figure 4 yes Figure 3 An enlarged view of the local structure after being flipped 90 degrees at point A in the middle.

[0021] Figure 5 yes Figure 3 An enlarged view of the local structure after flipping 90 degrees at point B in the middle.

[0022] Figure 6 It is a schematic diagram of a heat shrink film wrapping process of a three-dimensional shoe film wrapping machine according to an embodiment of the utility model. DETAILED DESCRIPTION

[0023] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0024] refer to Figures 2 to 6 , the embodiment of the utility model discloses a specific application embodiment of a hot air shrinking device for a shoe film machine in a three-dimensional shoe film coating machine. A hot air shrinking device for a shoe film machine comprises a shell 10, wherein a silo 11 for placing a heat shrink film roll is provided inside the front part of the shell 10, and a film outlet 12 is provided at the rear of the silo, and a film outlet device for driving the heat shrink film to be discharged is provided between the silo and the film outlet 12, and a pressing panel 13 is integrally provided at the rear of the shell 10, and a film cutting device is provided between the film outlet device and the film outlet 12, and a hot air shrinking device is provided around the pressing panel 13, and the film cutting device comprises a film cutting port 14, two hot cutting clamps 15 (the hot cutting clamping principle of the hot cutting clamp 15 in this embodiment is the prior art, so it will not be described in detail here.), an extension portion 16, and a guide block 17;

[0025] The film cutting opening 14 is opened on the upper surface of the shell 10, and the hot cutting clamp 15 can be clamped in the film cutting opening 14. The facing ends of the two hot cutting clamps 15 can be rotatably arranged on the shell 10, and a flip driving structure for driving the hot cutting clamp 15 to flip up the hot melt clamp to cut the heat shrink film and reset it is arranged inside the shell 10; the extension part 16 is L-shaped and is arranged on the shell 10 in one piece or in a split manner, the film outlet 12 is located above the extension part 16, and the film cutting opening 14 is located between the extension part 16 and the hot air shrinking device; the guide block 17 is located above the middle part of the extension part 16 and is arranged on the shell 10 in one piece or in a split manner, and a guide extension spacing 18 is formed between the guide block 17 and the extension part 16 for guiding the arc-shaped film outlet so that both sides of the heat shrink film have a flipping and hot clamping deformation amount, and a flipping avoidance part 19 for the heat shrink film to flip up and deform is formed between the left and right sides of the guide block 17 and the extension part 16.

[0026] The film discharging device includes a clamping pair of rollers 20, a first motor (not shown in the figure), and two first gears (not shown in the figure). The clamping pair of rollers 20 can be rotatably arranged on the shell 10, and the two first gears are meshed with each other and arranged on the rotating shaft of the clamping pair of rollers 20. The shell of the first motor is fixedly arranged on the shell 10, and the rotating shaft of the first motor is fixedly connected to the rotating shaft of the clamping pair of rollers 20.

[0027] The extension part 16 is provided with a film pushing structure to prevent the heat shrink film from accumulating in the guide extension interval 18. The film pushing structure includes a film pushing roller 21, and the two ends of the film pushing roller 21 are rotatably arranged on the extension part 16 at the guide extension interval 18, and the extension part 16 is provided with a rotation driving structure for driving the demoulding roller to rotate. The film pushing roller 21 is linked with the clamping roller pair 20, and the power source of the clamping roller pair 20 is used to rotate and push the film body, which can reduce the use of motors and reduce equipment costs.

[0028] The number of the film pushing rollers 21 is two, three or four, and the rotating drive structure includes a plurality of track wheels 22 and a plurality of tracks 23. The track wheels 22 are fixedly sleeved on the rotating shafts on the left and right sides of the film pushing rollers 21 and one rotating shaft of the clamping pair of rollers 20. The track 23 is sleeved on the track wheels 22 of the clamping pair of rollers 20 and the adjacent film pushing rollers 21 and is alternately sleeved on the track wheels 22 of two adjacent film pushing rollers 21.

[0029] The hot air shrinking device includes a heating wire cover 24, a heating wire 25, a first fan 26, and an air supply duct 27. The heating wire cover 24 is U-shaped. The pressing panel 13 is integrally arranged on the shell 10. The heating wire cover 24 is located on the upper surface of the pressing panel 13 and is integrally or separately arranged on the shell 10. The heating wire 25 is arranged in the heating wire cover 24. A plurality of air outlet holes 28 are provided at intervals on the inner side surface of the heating wire cover 24. The first fan 26 is arranged inside the shell 10. A ventilator for air to flow to the first fan 26 is provided on the shell 10. The air inlet of the air supply duct 27 is connected to the air outlet surface of the first fan 26. A plurality of air outlets 29 are provided on the air supply duct 27. The air outlets 29 are connected to the inside of the heating wire cover 24.

[0030] The extension portion 16 is provided with a film laying structure for driving the heat shrink film to move to the stepping panel 13, and the film laying structure includes a second fan 30, an air outlet channel 31, and an air supply hose 32. The second fan 30 is arranged inside the shell 10, and the shell 10 is provided with a vent for air to flow to the second fan 30. The air outlet channel 31 is arranged on the shell 10 or the guide block 17, and the air outlet of the air outlet channel 31 faces the stepping panel 13. One end of the air supply hose 32 is connected to the air outlet surface of the second fan 30, and the other end is connected to the air inlet of the air outlet channel 31. A light-through hole for the air supply hose 32 to pass through is opened on one side of the front end of the shell 10.

[0031] The heating wire cover 24 is provided with an inverted eight-shaped guide slope 33 on the inner side surfaces on both sides of the rear end of the pressing panel 13 for guiding the three-dimensional free end of the heat shrink film after hot-melt clamping to be discharged centrally to the pressing panel 13, and the heating wire cover 24 is provided with an air flow channel 34 for air flow between the guide slopes 33.

[0032] The flip driving structure includes two driving shafts 35, two second gears 36, and a second motor 37. The two driving shafts 35 are fixedly inserted on the opposite ends of the two hot-cut clamps 15. Both ends of the driving shafts 35 are rotatably set on the shell 10. The two second gears 36 are meshed with each other and set on the two shafts. The outer shell of the second motor 37 is fixedly set on the shell 10, and the rotating shaft of the second motor 37 is fixedly connected to one of the driving shafts 35.

[0033] Further, the heating wire cover 24 is integrally arranged on the housing 10, and an installation opening 38 for disassembling and assembling the heating wire 25 is provided on the housing 10 below the heating wire cover 24, and a sealing plate 39 is provided on the installation opening 38 where a bolt can be disassembled and a sealing gasket is pressed, and the air outlet of the air supply duct 27 is integrally arranged or glued and tightly arranged on the sealing plate 39. Alternatively, the heating wire cover is separately and tightly arranged on the housing, a sealing gasket is pressed on the lower port of the heating wire cover and is detachably arranged on the housing 10 through an installation protrusion and a bolt, and the air outlet of the air supply duct is glued and tightly arranged on the housing.

[0034] A method for using a three-dimensional shoe film coating machine:

[0035] Open the cover at the front end of the housing 10, install the heat shrink film roll in the silo, and manually pull the free end of the heat shrink film roll through the clamping rollers 20 and the guide extension spacing 18 in sequence, and pull it to the stepping panel 13 for the first hot melt pinching, so that the free end of the heat shrink film roll forms a semi-boat-shaped three-dimensional tip. The clamping rollers 20 clamp the heat shrink film to discharge the material, the film pushing roller 21 rotates to prevent the heat shrink film from accumulating at the guide extension spacing 18, and the air outlet channel 31 supplies air to the three-dimensional tip of the heat shrink film. The wind force gathers in the three-dimensional tip to push the free end of the heat shrink film to flatten forward and backward toward the stepping panel. When the shoe steps on the pressing panel 13 (the induction control of the hot-cut clamp 15 and the clamping roller 20 adopts conventional sensing settings, so it is not described in detail here), the hot-cut clamp 15 hot-melts and clamps the heat shrink film again, so that the cut heat shrink film is in a boat shape, and the two ends of the boat-shaped heat shrink film are in an upward three-dimensional shape, which maximizes the upward height of the heat shrink film, increases the height of the heat shrink film cover on the shoe surface after heat shrinkage, and prevents the heat shrink film cover from detaching from the shoe body.

[0036] Based on the aforementioned technical solution, the film pushing structure may also include at least one film pushing wheel, which is located at the guide extension spacing and can be rotatably arranged on the extension portion, and the extension portion is provided with a rotating drive structure for driving the demolding roller to rotate; the rotating drive structure includes a plurality of track wheels, a plurality of tracks, and a third motor, the track wheels are fixedly sleeved on the rotating shafts on the left and right sides of the film pushing wheel, the tracks are alternately sleeved on the track wheels of two adjacent film pushing wheels, the outer shell of the third motor is fixedly arranged on the shell, and the rotating shaft of the third motor is fixedly connected to the rotating shaft of one of the film pushing wheels.

[0037] Based on the aforementioned technical solution, when the hot air shrinkage device uses the existing technology to press down the exposed hot air outlet, the pressing panel is provided with inverted eight-shaped guide slopes on both sides of the rear end of the sinking pedal for guiding the three-dimensional free ends of the heat shrink film after hot-melt clamping to be discharged centrally to the pressing panel. The guide slopes are integrally formed with the shell, and the spacing between the guide slopes forms an airflow channel for air circulation.

[0038] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to 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 shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A hot air shrinking device for a shoe film machine, comprising a housing, characterized in that: It also includes a heating wire cover, a heating wire, a first fan, and an air supply duct. The heating wire cover is located on the left and right sides and / or the rear side of the stepping panel of the shell and is tightly arranged on the shell. The heating wire is arranged in the heating wire cover. A plurality of air outlet holes are arranged on the inner side surface of the heating wire cover at intervals. The first fan is arranged inside the shell. The air inlet of the air supply duct is connected to the air outlet surface of the first fan. A plurality of air outlets are arranged on the air supply duct, and the air outlets are connected to the inside of the heating wire cover.

2. A hot air shrinking device for a shoe film machine according to claim 1, characterized in that: The heating wire cover is integrally arranged on the shell, and an installation opening for disassembling and assembling the heating wire is provided on the shell below the heating wire cover. A sealing plate is detachably arranged on the installation opening, and the air outlet of the air supply duct is tightly arranged on the sealing plate.

3. The hot air shrinking device for a shoe film machine according to claim 1, characterized in that: The heating wire cover is detachably and tightly arranged on the shell, and the air outlet of the air supply duct is tightly arranged on the shell.

4. A hot air shrinking device for a shoe film machine according to claim 1, 2 or 3, characterized in that: The shape of the heating wire cover is U-shaped.

5. The hot air shrinking device for a shoe film machine according to claim 4, characterized in that: The heating wire cover is integrally provided with an inverted eight-shaped guiding slope on the inner side surfaces on both sides of the rear end of the pressing panel for guiding the three-dimensional free end of the heat shrink film after hot-melt clamping to discharge centrally to the pressing panel.

6. The hot air shrinking device for a shoe film machine according to claim 5, characterized in that: An air flow channel for air flow is provided on the heating wire cover between the guide inclined surfaces.

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