A film folding mechanism used in a film laminating machine for cooling pipes of new energy vehicles

Abstract

The present invention discloses a film folding mechanism applied to a film laminating machine for a cooling pipe of a new energy vehicle, which is used for folding a composite film having a left film folding portion and a right film folding portion to be folded onto the top of the cooling pipe, and includes: a left film folding mechanism, a right film folding mechanism, and a second conveying unit. The left film folding mechanism and the right film folding mechanism fold the left film folding portion and the right film folding portion respectively. The left film folding mechanism includes a plurality of left film folding rollers and a first pressing unit. The tapers of the plurality of left film folding rollers gradually increase along the conveying direction of the cooling pipe. In the present invention, the left film folding mechanism and the right film folding mechanism can be used to fold the left film folding portion and the right film folding portion respectively, thereby realizing automatic film folding and avoiding the phenomenon of scalding caused by manual operation. The plurality of left film folding rollers with different tapers can gradually adjust the inclination angle of the left film folding portion, thereby improving the film folding effect and ensuring the quality of subsequent film laminating.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile cooling pipe film laminating equipment, and more specifically to a film folding mechanism applied to a film laminating machine for a new energy automobile cooling pipe. Background Art

[0002] As the strategic development direction of the country, new energy vehicles, especially pure electric vehicles, are increasingly recognized by the public. Power batteries are an indispensable source of power output. They are very sensitive to temperature and need to ensure that they can maintain a long cycle life while exerting their maximum capacity. At present, the voltage resistance requirements of cooling pipes in electric vehicle cooling (battery packs, electric drives) systems are mainly achieved by spraying the pipe body. The main defect of pipe body spraying is that uneven spraying easily causes poor voltage resistance. It is very easy to cause safety hazards in the automotive battery system. If a PET composite film with excellent voltage resistance performance (reaching DC4500V or above) is used, the risk of poor voltage resistance can be effectively reduced.

[0003] The existing patent application document with application number 201610600018.4 proposes a film bending mechanism, in which a suction plate seat plate is connected to the bottom plate, and a front folding device and a side folding device that can automatically fold the protective film upward are provided on the bottom plate; a vacuum suction plate is fixedly installed on the suction plate seat plate; a accommodating groove is provided in the middle of the vacuum suction plate, and a product positioning fixing block is fixed in the accommodating groove; a product positioning movable block is movably connected to the product positioning fixing block; an air hole for sucking the protective film is also provided on the vacuum suction plate; a positioning pin for auxiliary positioning of the product is connected to the suction plate seat plate through an elastic member a, and the top end of the positioning pin extends from the vacuum suction plate, but it can only play the effect of folding the film.

[0004] Film folding is an essential step in the film laminating process of the film laminating machine. The current film folding process often adopts manual film folding, but the manual film folding effect is poor, and film folding and film laminating are divided into two processes. In addition, the cooling tube needs to be heated during the film laminating process, which can easily scald the operator and cause safety hazards. At the same time, manual film folding has low production efficiency and the quality cannot be guaranteed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a film folding mechanism applied to a film laminating machine for cooling pipes of new energy vehicles to achieve automatic film folding and improve production efficiency in view of the technical problems of poor manual film folding effect and unsafe use.

[0006] The present invention solves the above technical problems through the following technical means: a film folding mechanism applied to a film laminating machine for a cooling pipe of a new energy vehicle, used for folding a composite film having a left film folding portion and a right film folding portion to the top of the cooling pipe, comprising: a left film folding mechanism, a right film folding mechanism, and a second conveying unit, wherein the left film folding mechanism and the right film folding mechanism fold the left film folding portion and the right film folding portion respectively, the left film folding mechanism comprises a plurality of left film folding rollers and a first pressing unit, the taper of the plurality of left film folding rollers gradually increases along the conveying direction of the cooling pipe, and ..., the left film folding mechanism comprises a plurality of left film folding rollers, the left film folding mechanism comprises a plurality of left film folding rollers, the left film folding mechanism comprises a plurality of left film folding rollers, the left film folding mechanism comprises a plurality of left film folding rollers, the left film folding mechanism comprises a plurality of left film folding rollers, the left film folding mechanism comprises a plurality of left film folding rollers, the left The second conveying unit is used to convey the cooling tube, and the first pressing unit rolls and presses the left film-to-be-folded portion folded to the top of the cooling tube. The left film folding mechanism also includes a film folding frame, and the multiple left film folding rollers include a first left film folding roller, a second left film folding roller, a third left film folding roller, a fourth left film folding roller and multiple fifth left film folding rollers; the multiple left film folding rollers are rotatably connected to the top of the film folding frame through a rotating shaft and are arranged along the transmission direction of the cooling tube. The multiple arranged left film folding rollers can achieve smooth folding of the left film-to-be-folded portion, thereby improving the film folding effect.

[0007] The left film folding mechanism and the right film folding mechanism can be used to fold the left and right film folding portions respectively, thus realizing automatic film folding and avoiding the phenomenon of burns caused by manual operation. Multiple left film folding rollers with different tapers can gradually adjust the inclination angle of the left film folding portion, thus improving the film folding effect and ensuring the quality of subsequent film lamination.

[0008] As a preferred technical solution, the first left film folding roller is configured in a cone shape, the second left film folding roller is configured in a truncated cone shape, the third left film folding roller, the fourth left film folding roller, and the fifth left film folding roller are all configured in an inverted truncated cone shape, and the top surface diameters of the first left film folding roller, the second left film folding roller, the third left film folding roller, the fourth left film folding roller, and the fifth left film folding roller arranged along the transmission direction of the cooling pipe gradually increase, and the height first increases and then decreases, and the top surface diameters of multiple fifth left film folding rollers are the same.

[0009] As a preferred technical solution, the left film folding portion is in contact with the first left film folding roller, the second left film folding roller, the third left film folding roller, and the fourth left film folding roller, and the angle between the left film folding portion and the cooling tube gradually decreases along the transmission direction of the cooling tube.

[0010] As a preferred technical solution, the vertical projections of the top surfaces of the third left film folding roller, the fourth left film folding roller and the fifth left film folding roller partially overlap with the left film folding portion.

[0011] As a preferred technical solution, the right film folding mechanism includes a plurality of right supporting rollers and a first right film folding roller, a second right film folding roller, a third right film folding roller, a fourth right film folding roller, and a fifth right film folding roller; the first right film folding roller, the second right film folding roller, the third right film folding roller, the fourth right film folding roller, and the fifth right film folding roller are respectively the same in structure as the first left film folding roller, the second left film folding roller, the third left film folding roller, the fourth left film folding roller, and the fifth left film folding roller, and the plurality of right supporting rollers include a first right supporting roller, a second right supporting roller, a third right supporting roller, a fourth right supporting roller, and a fifth right supporting roller; the plurality of right The support rollers are all rotatably connected to the top of the film folding machine frame through a rotating shaft and are arranged along the transmission direction of the cooling tube. The first right support roller, the second right support roller, the third right support roller and the fourth right support roller are all arranged in a frustum shape, and the taper gradually increases. The fifth left film folding roller is arranged in an inverted frustum shape. The arrangement of multiple right support rollers can cooperate with multiple left film folding rollers to provide support for the right film folding portion when folding the left film folding portion. The arrangement of multiple right film folding rollers can fold the right film folding portion after the left film folding portion is completely bonded to the top of the cooling tube, thereby improving the film folding effect.

[0012] As a preferred technical solution, a limiting block is fixedly connected to the top of the film folding frame, and the limiting block can be used to limit the left film folding portion, thereby improving the laminating effect of the first laminating unit.

[0013] As a preferred technical solution, the first pressing unit includes a first film-sticking moving wheel and a second fixed plate. The first film-sticking moving wheel is located at the bottom end of the cooling tube and cooperates with the cooling tube transmission. A first clamping wheel is fixed to the side wall of the second fixed plate. The first clamping wheel rolls and presses the cooling tube and the left film-folding portion. The left film-folding portion can be pressed by the first clamping wheel and the first film-sticking moving wheel, thereby improving the film-sticking effect.

[0014] As a preferred technical solution, a plasma cleaner is provided on the second fixed plate, and the cleaning end of the plasma cleaner is located at the top of the cooling tube. The plasma cleaner can improve the adhesion between the left film-attaching portion and the right film-attaching portion.

[0015] As a preferred technical solution, a hot air blower is provided between the third left film folding roller and the fourth left film folding roller, and the hot air blower can be used to provide auxiliary heating to the cooling pipe to prevent the cooling pipe from dissipating heat too quickly, thereby affecting the film laminating effect.

[0016] The advantages of the present invention are:

[0017] (1) In the present invention, the left film folding mechanism and the right film folding mechanism can be used to fold the left film folding portion and the right film folding portion respectively, thereby realizing automatic film folding and avoiding the phenomenon of burns caused by manual operation. A plurality of left film folding rollers with different tapers can gradually adjust the inclination angle of the left film folding portion, thereby improving the film folding effect and ensuring the quality of subsequent film lamination.

[0018] (2) In the present invention, the first pressing wheel, the third pressing wheel, the fourth pressing wheel and the fifth pressing wheel are arranged to prevent bubbles from appearing during the film pasting process, thereby improving the film pasting quality.

[0019] (3) In the present invention, the adhesion between the films is improved by setting up a plasma cleaning machine, and the cooling tube is assisted by the setting up a hot air gun to improve the melting effect of the cooling tube on the hot melt adhesive on the composite film, thereby improving the film pasting quality.

[0020] (4) In the present invention, by setting up a plurality of left film folding rollers and a right film folding roller, the composite film can be folded toward one side of the cooling tube during the conveying process. The left film folding roller and the right film folding roller can not only convey the cooling tube, but also perform film folding operations, thereby improving the film folding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the overall structure of a film folding mechanism applied to a film laminating machine for cooling pipes of new energy vehicles provided by an embodiment of the present invention;

[0022] Figure 2 A schematic structural diagram of a film folding mechanism of a film folding mechanism applied to a film laminating machine for a cooling pipe of a new energy vehicle provided by an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the structure of a fifth clamping wheel of a film folding mechanism applied to a film laminating machine for a cooling pipe of a new energy vehicle provided by an embodiment of the present invention;

[0024] Figure numbers: 8, film folding frame; 16, left film folding roller; 1601, first left film folding roller; 1602, second left film folding roller; 1603, third left film folding roller; 1604, fourth left film folding roller; 1605, fifth left film folding roller; 17, first film laminating moving wheel; 18, second fixed plate; 19, plasma cleaning machine; 20, first pinch wheel; 30, conveying roller; 31, third pinch wheel; 32, fourth Pressure wheel; 34, fifth pressure wheel; 3501, first right film folding roller; 3502, second right film folding roller; 3503, third right film folding roller; 3504, fourth right film folding roller; 3505, fifth right film folding roller; 3601, first right support roller; 3602, second right support roller; 3603, third right support roller; 3604, fourth right support roller; 3605, fifth right support roller; 37, limit block. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0026] The film used in this embodiment is a PET composite film, which is composed of white film segments and black film segments that are continuously spaced apart, and the length of the white film segment is greater than that of the black film segment.

[0027] like Figure 1 , Figure 2 , Figure 3As shown, the film folding mechanism includes a left film folding mechanism, a right film folding mechanism, and a second conveying unit. The left film folding mechanism and the right film folding mechanism are respectively used to fold the left film folding portion and the right film folding portion to be folded. The second conveying unit is used to convey the cooling tube. The second conveying unit includes a plurality of conveying rollers 30 arranged on the film folding frame 8. The left film folding mechanism includes a plurality of left film folding rollers 16 and a film folding frame 8. The plurality of left film folding rollers are respectively a first left film folding roller 1601, a second left film folding roller 1602, a third left film folding roller 1603, a fourth left film folding roller 1604, and a fifth left film folding roller 1605 from right to left. The fifth left film folding roller 1605 is provided in plurality. The tapers of the plurality of left film folding rollers 16 gradually increase along the conveying direction of the cooling tube. The first left film folding roller 1601, the second left film folding roller 1602, the third left film folding roller 1603, the fourth left film folding roller 1604, and the fifth left film folding roller 1605. The first left film folding roller 1601 is arranged in a cone shape, the second left film folding roller 1602 is arranged in a truncated cone shape, the third left film folding roller 1603, the fourth left film folding roller 1604, and the fifth left film folding roller 1605 are arranged in an inverted truncated cone shape, and the top surface diameters of the first left film folding roller 1601, the second left film folding roller 1602, the third left film folding roller 1603, the fourth left film folding roller 1604, and the fifth left film folding roller 1605 arranged in the transmission direction of the cooling pipe gradually increase. 3. The heights of the fourth left film folding roller 1604 and the fifth left film folding roller 1605 increase first and then decrease. The top surfaces of the plurality of fifth left film folding rollers 1605 have the same diameter. The portion to be folded abuts against the first left film folding roller 1601, the second left film folding roller 1602, the third left film folding roller 1603 and the fourth left film folding roller 1604. The vertical projections of the top surfaces of the third left film folding roller 1603, the fourth left film folding roller 1604 and the fifth left film folding roller 1605 partially overlap with the left portion to be folded. The angle between the left portion to be folded and the cooling tube gradually decreases along the transmission direction of the cooling tube. The tapers of the plurality of left film folding rollers 16 gradually change, so that the left film folding portion is gradually folded onto the cooling tube. A fifth pressing wheel 34 is further provided between the second left film folding roller 1602 and the third left film folding roller 1603. The fifth pressing wheel 34 is further provided between the second left film folding roller 1602 and the third left film folding roller 1603. The tightening wheel 34 abuts against the top of the liquid cooling tube, and the fifth clamping wheel 34 can press the composite film liquid cooling tube and prevent the left film folding part and the right film folding part from sticking together, which will affect the subsequent film folding. A hot air gun is provided between the third left film folding roller 1603 and the fourth left film folding roller 1604, which can heat the cooling tube and improve the film laminating effect. A first clamping wheel 20 and a limit block 37 are provided between the first fifth left film folding roller 1605 and the second fifth left film folding roller 1605. The limit block 37 can limit the left film to be folded after being folded by multiple left film folding rollers 16, so as to improve the subsequent laminating effect. The first clamping wheel 20 is fixed to the film folding frame 8 through the second fixing plate 18. The bottom end of the first clamping wheel 20 is provided with a first film laminating moving wheel 17 installed on the top of the film folding frame 8.The first clamping wheel 20 and the first film-laminating moving wheel 17 press the left film-folding part, the wheel width of the first film-laminating moving wheel 17 is smaller than the width of the cooling tube, a plasma cleaning machine 19 is provided between the second fifth left film-folding roller 1605 and the third fifth left film-folding roller 1605, the cleaning end of the plasma cleaning machine 19 is located at the top end of the cooling tube, and the plasma cleaning machine 19 can increase the adhesion between the left film-to-be-laminated part and the right film-to-be-laminated part, thereby improving the film-laminating effect; the right film-folding mechanism includes a plurality of right supporting rollers and a plurality of right film-folding rollers, and the plurality of right film-folding rollers are respectively a first right film-folding roller 3501, a second right film-folding roller 3502, a third right film-folding roller 3503, a fourth right film-folding roller 3504, a fifth right film-folding roller 3505, The film roller 3505, the first right film folding roller 3501, the second right film folding roller 3502, the third right film folding roller 3503, the fourth right film folding roller 3504, and the fifth right film folding roller 3505 are respectively the same in structure as the first left film folding roller 1601, the second left film folding roller 1602, the third left film folding roller 1603, the fourth left film folding roller 1604, and the fifth left film folding roller 1605, and the plurality of right support rollers are sequentially arranged along the transmission direction of the cooling pipe as the first right support roller 3601, the second right support roller 3602, the third right support roller 3603, the fourth right support roller 3604, and the fifth right support roller 3605; the first right support roller 3601, the second right support roller 3602, the third right support roller 3603, the fourth right support roller 3604, and the fifth right support roller 3605; The support roller 3603, the fourth right support roller 3604, and the fifth right support roller 3605 are all rotatably connected to the top of the film folding frame 8 through a rotating shaft and are arranged along the transmission direction of the cooling pipe. The first right support roller 3601, the second right support roller 3602, the third right support roller 3603, and the fourth right support roller 3604 are all arranged in a truncated cone shape, and the taper gradually increases. The fifth right support roller 3605 is arranged in an inverted truncated cone shape. The fifth right support roller 3605 is located at the right end of the first right film folding roller 3501. The left end of the fifth right film folding roller 3505 is rotatably connected to the third clamping wheel 31 and the fourth clamping wheel 32 in sequence. The bottom ends of the third clamping wheel 31 and the fourth clamping wheel 32 are each provided with two conveying rollers 30 The two conveying rollers 30 cooperate with the third pressing wheel 31 and the fourth pressing wheel 32 respectively. The third pressing wheel 31 and the conveying roller 30 press the right film folding part. The width of the third pressing wheel 31 is smaller than the width of the cooling tube, and the width of the fourth pressing wheel 32 is the same as the width of the cooling tube. The overlapping area of ​​the left film folding part and the right film folding part is pressed by the fourth pressing wheel 32, which improves the pressing effect. It should be noted that if the left film folding part and the right film folding part have no overlapping area, the cooling tube after film lamination can be pressed again, which improves the film lamination effect. In this embodiment, by changing the taper of the right film folding roller, the left film folding part is folded and pressed, and then the right film folding part is folded and pressed.

[0028] Working principle: The fifth pressing wheel 34 rolls the composite film. Since the tapers of the multiple left folding rollers 16 are different, the multiple left folding rollers 16 fold the left film-to-be-folded portion. When the multiple left folding rollers 16 fold the left film-to-be-folded portion, the multiple right support rollers provide support for the right film-to-be-folded portion. The left film-to-be-folded portion folded to the top of the cooling tube is pressed to the top of the cooling tube by the first pressing wheel 20. The right film-to-be-folded portion is folded by the multiple right folding rollers. The adhesion between the left film-to-be-folded portion and the right film-to-be-folded portion pressed to the top of the cooling tube is increased by the plasma cleaning machine 19. The right film-to-be-folded portion is pressed by the fourth pressing wheel 32. The overlapping area of ​​the left film-to-be-folded portion and the right film-to-be-folded portion is pressed by the fourth pressing wheel 32 to complete the entire film laminating process.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A film folding mechanism used in a film laminating machine for a cooling pipe of a new energy vehicle, used to fold a composite film having a left film folding portion and a right film folding portion onto the top of the cooling pipe, comprising a left film folding mechanism and a right film folding mechanism, It is characterized in that The machine also includes a second conveying unit, wherein the left film folding mechanism and the right film folding mechanism fold the left film folding portion and the right film folding portion respectively, wherein the left film folding mechanism includes a plurality of left film folding rollers (16) and a first pressing unit, wherein the taper of the plurality of left film folding rollers (16) gradually increases along the conveying direction of the cooling tube, wherein the second conveying unit is used to convey the cooling tube, and the first pressing unit rolls and presses the left film folding portion folded to the top of the cooling tube, wherein the left film folding mechanism also includes a film folding frame (8), wherein the plurality of left film folding rollers (16) include a first left film folding roller (1601), a second left film folding roller (1602), a third left film folding roller (1603), a fourth left film folding roller (1604) and a plurality of fifth left film folding rollers (1605); the plurality of left film folding rollers (16) are all rotated by a rotating shaft. The left film folding portion is movably connected to the top of the film folding machine frame (8) and is arranged along the transmission direction of the cooling tube; the left film folding portion is in contact with the first left film folding roller (1601), the second left film folding roller (1602), the third left film folding roller (1603), and the fourth left film folding roller (1604), and the angle between the left film folding portion and the cooling tube gradually decreases along the transmission direction of the cooling tube; the vertical projections of the top surfaces of the third left film folding roller (1603), the fourth left film folding roller (1604), and the fifth left film folding roller (1605) partially overlap with the left film folding portion; a fifth pressing wheel (34) is also arranged between the second left film folding roller (1602) and the third left film folding roller (1603), and the fifth pressing wheel (34) is in contact with the top of the liquid cooling tube, and the fifth pressing wheel (34) presses the composite film liquid cooling tube; The first left film folding roller (1601) is arranged in a cone shape, the second left film folding roller (1602) is arranged in a truncated cone shape, and the third left film folding roller (1603), the fourth left film folding roller (1604), and the fifth left film folding roller (1605) are all arranged in an inverted truncated cone shape. The top surface diameters of the first left film folding roller (1601), the second left film folding roller (1602), the third left film folding roller (1603), the fourth left film folding roller (1604), and the fifth left film folding roller (1605) arranged along the transmission direction of the cooling pipe gradually increase, and the height first increases and then decreases, and the top surface diameters of multiple fifth left film folding rollers (1605) are the same.

2. According to claim 1, a film folding mechanism used in a film laminating machine for cooling pipes of new energy vehicles, It is characterized in that The right film folding mechanism comprises a plurality of right supporting rollers and a first right film folding roller (3501), a second right film folding roller (3502), a third right film folding roller (3503), a fourth right film folding roller (3504), and a fifth right film folding roller (3505); the first right film folding roller (3501), the second right film folding roller (3502), the third right film folding roller (3503), the fourth right film folding roller (3504), and the fifth right film folding roller (3505) are respectively connected to a first left film folding roller (1601), a second left film folding roller (1602), a third left film folding roller (1603), a fourth left film folding roller (1604), and a fifth left film folding roller (1605). 605) has the same structure, and the multiple right support rollers include a first right support roller (3601), a second right support roller (3602), a third right support roller (3603), a fourth right support roller (3604), and a fifth right support roller (3605); the multiple right support rollers are rotatably connected to the top of the film folding frame (8) through a rotating shaft and are arranged along the transmission direction of the cooling pipe, the first right support roller (3601), the second right support roller (3602), the third right support roller (3603), and the fourth right support roller (3604) are all arranged in a truncated cone shape, and the taper gradually increases, and the fifth left film folding roller (1605) is arranged in an inverted truncated cone shape.

3. According to claim 1, a film folding mechanism used in a film laminating machine for cooling pipes of new energy vehicles, It is characterized in that The top end of the film folding machine frame (8) is fixedly connected to a limiting block (37).

4. According to claim 1, a film folding mechanism used in a film laminating machine for cooling pipes of new energy vehicles, It is characterized in that The first pressing unit comprises a first film laminating moving wheel (17) and a second fixed plate (18); the first film laminating moving wheel (17) is located at the bottom end of the cooling tube and is in driving cooperation with the cooling tube; a first pressing wheel (20) is fixed to the side wall of the second fixed plate (18); the first pressing wheel (20) rolls and presses the cooling tube and the left film folding portion.

5. According to claim 4, a film folding mechanism used in a film laminating machine for cooling pipes of new energy vehicles, It is characterized in that A plasma cleaning machine (19) is provided on the second fixed plate (18), and a cleaning end of the plasma cleaning machine (19) is located at the top of the cooling pipe.

6. According to claim 1, a film folding mechanism used in a film laminating machine for cooling pipes of new energy vehicles, It is characterized in that A hot air blower is provided between the third left film folding roller (1603) and the fourth left film folding roller (1604).

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