Curved surface plastic parts laminating packaging machine

Abstract

The patent of the present invention discloses a laminating and packaging machine for arc-shaped plastic parts, which relates to the field of laminating technology. The arc-shaped plastic part laminating and packaging machine integrates transmission and packaging. Its transmission part includes a mounting plate, a transmission roller, a transmission belt and a driving device, and the packaging part is equipped with a leveling roller, an ion fan, a negative pressure dust collector, an electrostatic generator, a steering roller, a laminating roller and a bonding roller. The diameter of the bonding roller is adjustable to adapt to different arc-shaped plastic parts, ensuring that the film is completely electrostatically adsorbed and bonded to the surface of the plastic part, thereby ensuring the bonding quality.

Description

Technical Field

[0001] The patent of this invention relates to the field of laminating technology, specifically a laminating packaging machine for curved surface plastic parts. Background Art

[0002] The laminating and packaging machine, also known as a laminating machine or packaging machine, can be used to perform laminating and packaging on plastic parts. During the laminating and packaging process, a film is covered on the object and pressed tightly onto the surface of the plastic part by a roller to achieve a protective effect.

[0003] The rollers used in existing laminating and packaging machines are mostly straight-cylinder rollers. When laminating and packaging plastic parts with curved surfaces, it is difficult to fit and press the film covering the plastic parts with curved surfaces, and it is impossible to ensure that the film and the surface of the plastic parts fit completely, resulting in low laminating quality, thereby reducing the protective effect of the film on the plastic parts. Summary of the invention

[0004] The purpose of the present invention is to provide a film-coating packaging machine for arc-shaped surface plastic parts to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the patent of the present invention provides the following technical solutions: a film packaging machine for arc-shaped surface plastic parts, including a transmission system and a film packaging system arranged at the top of the transmission system, the film packaging system includes a shell fixedly installed on the transmission system, and a leveling roller, an ion fan, a negative pressure dust suction mechanism, an electrostatic generator, a steering roller, a film coating roller and a laminating roller mechanism are installed in the shell from the input end to the output end of the transmission system in sequence, and the laminating roller mechanism includes a rotating shaft, a flexible cylinder, a diameter adjustment unit and two symmetrically arranged fixed disks, the diameter adjustment unit is transmission-arranged in the middle of the rotating shaft, the two fixed disks are symmetrical and transmission-arranged at both ends of the rotating shaft, the diameter adjustment unit includes an annular cylinder transmission-connected to the rotating shaft, a cover body for sealing the opening of the annular cylinder, a connecting cylinder integrally arranged in the annular cylinder, a gear plate rotationally connected to the connecting cylinder, a driving gear rotationally arranged in the annular cylinder and a plurality of arc-shaped plates evenly arranged along the outer wall of the annular cylinder, and the outer wall of the driving gear is connected to the gear plate. The outer wall of the wheel disc is meshed, and the inner wall of the annular cylinder away from the cover body is evenly provided with a plurality of T-shaped slide grooves, and the T-shaped slide groove extends to the outer wall of the annular cylinder, and a slide bar is slidably provided in the T-shaped slide groove, and one end of the slide bar away from the rotating shaft is fixedly connected to the corresponding side arc plate, and a plurality of inclined arc-shaped limiting grooves are evenly provided on the side wall of the gear disc, and the middle part of the outer wall of the slide bar near the cover body is fixedly connected to the limiting circular block, and the end of the limiting circular block passes through the T-shaped opening of the T-shaped slide groove and extends to the corresponding side The arc-shaped limit groove is in the arc-shaped limit groove, the outer wall of the limit circle block is respectively fitted and slidably connected with the inner wall of the T-shaped opening and the arc-shaped limit groove, the number of the arc-shaped plates, the T-shaped slide grooves and the arc-shaped limit grooves is equal, the inner wall of the flexible cylinder is respectively fixedly connected with the outer walls of multiple arc-shaped plates and two fixed disks, the diameter of the annular cylinder is 3 / 5 of the diameter of the fixed disk, and the inner side wall of the annular cylinder is fixedly installed with a first servo motor whose execution end is connected to the driving gear and a limit retractor whose execution end can mesh with the outer wall of the gear disk.

[0006] Furthermore, the transmission system includes two symmetrically arranged mounting plates and a plurality of transmission rollers that are evenly and rotatably arranged between the two mounting plates, a plurality of transmission rollers are provided with transmission belts, a driving motor is installed on the outer wall of one of the mounting plates, the execution end of the driving motor passes through the mounting plate and is connected to the transmission roller at the end of the transmission system, the top of the ion fan is fixed to the top of the inner wall of the shell, an air inlet is arranged at the top of the inner wall of the shell at the input end of the ion fan, a trumpet-shaped air outlet cover is fixed at the output end of the ion fan, the negative pressure dust suction mechanism includes a dust suction cover, the top of the dust suction cover is connected to an exhaust pipe, the other end of the exhaust pipe passes through the shell and is connected to a negative pressure fan, the negative pressure fan is installed at the top of the shell, the bottom ends of the dust suction cover and the electrostatic generator are parallel to the top of the mounting plate, the top of the shell above the coating roller is provided with a lifting port, and a sealing cover is hinged on the lifting port.

[0007] Furthermore, the left and right ends of the smoothing roller, steering roller and bonding roller mechanisms are rotatably connected to longitudinal moving mechanisms, and the longitudinal moving mechanisms are fixed in the shell by screws. A central control unit is installed on the outer wall of the shell, and the central control unit is respectively connected to the drive motor, ion fan, negative pressure fan, electrostatic generator, first servo motor, limit telescope and multiple longitudinal moving mechanism signals.

[0008] Furthermore, the two ends of the flexible tube are fixed to the outer walls of the two fixed plates by a plurality of screws respectively, and two groups of connecting units are symmetrically and integrally arranged on the inner wall of the flexible tube on both sides of the diameter adjustment unit, and the connecting units are a plurality of protrusions that are evenly arranged around the inner wall of the flexible tube, and the protrusions are fixed to the side walls of the arc plate by screws.

[0009] Furthermore, two arc-shaped slide grooves are symmetrically arranged on the left and right side walls of the arc-shaped plate, and two connecting blocks are symmetrically and slidably arranged in the arc-shaped slide grooves. The protrusions are fixed to the connecting blocks by screws, and the number of the protrusions in the same group is equal to the number of connecting blocks on the corresponding side.

[0010] Furthermore, the laminating roller mechanism also includes a positioning plate that is transmission-connected to the middle part of the rotating shaft, and the two groups of connecting units are respectively arranged on both sides of the positioning plate, and the protrusions are fixed to the side walls of the corresponding side positioning plates by screws. There are two diameter adjustment units, which are symmetrically arranged on both sides of the positioning plate, and the outer wall of the arc plate is fitted with and slidably connected to the inner wall of the flexible cylinder. A thread is provided on the outer wall of the rotating shaft, and both ends of the diameter adjustment unit, the fixed plate and the positioning plate are fixed by nuts threadedly connected to the outer wall of the rotating shaft, and the diameters of the diameter adjustment unit, the fixed plate and the positioning plate are equal.

[0011] Furthermore, an ion rod is installed in the shell located on the side of the coating roller close to the output end of the transmission system, and the ion rod is parallel to the coating roller. Transverse moving mechanisms are installed at both ends of the ion rod, and the transverse moving mechanisms are installed in the shell by screws. A rangefinder is installed on the ion rod, and the ion rod, the transverse moving mechanism and the rangefinder are all connected to the central control unit signal.

[0012] Furthermore, a first ion isolation plate and a second ion isolation plate are respectively installed in the shell located between the ion blower and the dust cover and between the electrostatic generator and the dust cover, and a special-shaped ion isolation plate is integrally provided on the outer wall of the second ion isolation plate located on the output end side of the transmission system, and the special-shaped ion isolation plate is used to install the electrostatic generator.

[0013] Furthermore, a plurality of exhaust fans are evenly fixed on the mounting plate below the air outlet cover in a direction from the input end to the output end of the transmission system, and an exhaust port is provided on the mounting plate at the output end of the exhaust fan.

[0014] Furthermore, a cutting unit is arranged in the shell located at the side of the laminating roller mechanism close to the output end of the transmission system, and the cutting unit includes two symmetrically arranged mounting blocks, and a fixedly connected limit rod and a rotatably connected lead screw are sequentially installed between the two mounting blocks from top to bottom, and a wire seat is threadedly connected to the lead screw, and two limit blocks are symmetrically arranged at the top of the wire seat, and opposite sides of the two limit blocks are both fitted with and slidably connected to the outer wall of the limit rod, and a telescopic pump is installed at the bottom end of the wire seat, and a laser cutting machine is installed at the bottom end of the telescopic pump, and a second servo motor is installed on the outer wall of the shell, and the execution end of the second servo motor sequentially penetrates the outer wall of the shell and the corresponding side mounting block, and is transmission-connected to one end of the lead screw, and the telescopic pump, the laser cutting machine and the second servo motor are all signal-connected to the central control unit.

[0015] The beneficial effects achieved by the present invention are:

[0016] The plastic parts are pre-treated with leveling rollers to ensure that their surfaces are flat, providing a good foundation for subsequent lamination. The static electricity on the surface of the plastic parts is effectively removed by the ion fan to reduce dust adhesion. At the same time, the static electricity on the surface of the plastic parts is increased by the electrostatic generator to enhance the electrostatic adsorption force between the film and the plastic parts. The negative pressure dust suction mechanism can remove dust from the surface of the plastic parts and further improve the lamination quality. The diameter of the laminating roller mechanism is adjustable so that it can adapt to plastic parts with different curved surfaces, so that the film is completely electrostatically adsorbed on the surface of the plastic parts, thereby completing the complete lamination of the film and the surface of the plastic parts, ensuring the lamination quality of the film while also ensuring the protective effect of the film on the plastic parts.

[0017] By arranging an arc-shaped slide groove and a connecting block on the arc-shaped plate, the connecting block can slide along the arc-shaped slide groove during the contraction of the flexible tube, thereby effectively releasing the extrusion stress on the flexible tube caused by the continuous approach of the ends of the arc-shaped plate, cleverly solving the problem of wrinkles that may appear when the flexible tube contracts, and thus avoiding incomplete fitting between the film and the plastic part caused by wrinkles.

[0018] By setting a positioning plate and two diameter adjustment units, as well as nut fixing, the lamination processing of plastic parts of different widths and heights is realized. Secondly, the fitting and sliding connection design of the arc plate and the flexible tube ensures that the flexible tube can fit closely with the arc plate when the radius increases, thereby ensuring the stability of the packaging process and the packaging quality.

[0019] By installing an ion rod, the static electricity on the adsorption surface of the film is eliminated, so that opposite charges attract each other between the film and the plastic part, thereby significantly enhancing the electrostatic adsorption effect between the film and the plastic part. The rangefinder is combined with the setting of the lateral moving mechanism to monitor the distance between the ion rod and the film in real time and adjust the distance between the ion rod and the film.

[0020] By setting the first ion isolation plate, the second ion isolation plate and the opposite ion isolation plate, the ion blower, the dust cover, the electrostatic generator and the film are isolated from each other, so that each component forms its own independent space in the shell, thereby avoiding mutual influence.

[0021] The exhaust fan is designed to discharge the ion airflow that has been treated on the surface of the plastic parts, preventing the ion airflow blown by the ion fan from affecting the treatment of the plastic parts surface by the electrostatic generator and the treatment of the film by the ion rod.

[0022] By introducing an automated cutting unit, the need for manual film cutting is avoided, thereby improving production efficiency and cutting accuracy while reducing the complexity and error rate of manual operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the film-laminating packaging machine for arc-shaped surface plastic parts in the first embodiment;

[0024] Figure 2 This is a schematic diagram of the distribution and structure of the equipment in the housing in the first embodiment;

[0025] Figure 3 It is a cross-sectional view of the film-laminating packaging machine for arc-shaped surface plastic parts in the first embodiment;

[0026] Figure 4 It is a structural schematic diagram of the laminating roller mechanism in the first embodiment;

[0027] Figure 5is a cross-sectional view of the flexible tube and the connecting unit in the first embodiment;

[0028] Figure 6 It is a structural schematic diagram of a diameter adjustment unit in a partial cross-sectional state in the first embodiment;

[0029] Figure 7 is a schematic structural diagram of the curved plate in the first embodiment;

[0030] Figure 8 It is a structural schematic diagram of the laminating roller mechanism in the second embodiment;

[0031] Fig. 9 It is a structural schematic diagram of the longitudinal moving mechanism in the second embodiment;

[0032] Fig.10 It is a structural schematic diagram of the lateral movement mechanism in the second embodiment. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings.

[0034] Embodiment 1

[0035] like Figure 1-6As shown, embodiment 1 discloses a film-coating packaging machine for arc-shaped surface plastic parts, comprising: a transmission system 1 and a film-coating packaging system arranged at the top of the transmission system 1, the film-coating packaging system comprises a shell 2 fixedly mounted on the transmission system 1, and a leveling roller 3, an ion blower 4, a negative pressure dust suction mechanism 5, an electrostatic generator 6A, a steering roller 7, a film-coating roller 8 and a laminating roller mechanism 9 are sequentially installed in the shell 2 from the input end to the output end of the transmission system 1, and the laminating roller mechanism 9 comprises a rotating shaft 91, a flexible cylinder 92, a diameter adjustment unit 93 and two symmetrically arranged fixed disks 94, and the diameter adjustment unit 93 is transmission-arranged at In the middle of the rotating shaft 91, two fixed disks 94 are symmetrical and transmission-arranged at both ends of the rotating shaft 91. The diameter adjustment unit 93 includes an annular cylinder 931 transmission-connected to the rotating shaft 91, a cover body 932 for sealing the opening of the annular cylinder 931, a connecting cylinder 933 integrally arranged in the annular cylinder 931, a gear disk 934 rotationally connected to the connecting cylinder 933, a driving gear 935 rotationally arranged in the annular cylinder 931, and a plurality of arc-shaped plates 936 uniformly arranged along the outer wall of the annular cylinder 931. The outer wall of the driving gear 935 meshes with the outer wall of the gear disk 934, and the annular cylinder 931 away from the cover body 932 is provided. The inner wall of the annular cylinder 931 is evenly provided with a plurality of T-shaped slide grooves 9311, the T-shaped slide grooves 9311 extend to the outer wall of the annular cylinder 931, a slide bar 9312 is slidably provided in the T-shaped slide groove 9311, and one end of the slide bar 9312 away from the rotating shaft 91 is fixedly connected to the corresponding side arc plate 936, and a plurality of inclined arc-shaped limiting grooves 9341 are evenly provided on the side wall of the gear plate 934, and the slide bar 9312 is fixedly connected to the middle part of the outer wall of the cover body 932 with a limiting circular block 9313, and the end of the limiting circular block 9313 passes through the T-shaped opening of the T-shaped slide groove 9311 and extends to the arc-shaped limiting groove 936 on the corresponding side. In 341, the outer wall of the limiting circle 9313 is respectively fitted with and slidably connected to the inner wall of the T-shaped opening and the arc-shaped limiting groove 9341, the number of arc plates 936, T-shaped slide grooves 9311 and arc-shaped limiting grooves 9341 is equal, the inner wall of the flexible tube 92 is respectively fixedly connected to the outer walls of multiple arc plates 936 and two fixed disks 94, the diameter of the annular tube 931 is 3 / 5 of the diameter of the fixed disk 94, and the inner side wall of the annular tube 931 is fixedly installed with a first servo motor 937 whose execution end is transmission-connected to the driving gear 935 and a limiting telescoping device 938 whose execution end can mesh with the outer wall of the gear disk 934.

[0036] Further, such as Figure 1-3As shown, the transmission system 1 includes two symmetrically arranged mounting plates and a plurality of transmission rollers uniformly and rotatably arranged between the two mounting plates, a plurality of transmission rollers are provided with transmission belts, a driving motor is installed on the outer wall of one of the mounting plates, the execution end of the driving motor passes through the mounting plate, and is connected to the transmission roller at the end of the transmission system 1, the top of the ion fan 4 is fixed to the top of the inner wall of the shell 2, an air inlet 21 is arranged at the top of the inner wall of the shell 2 at the input end of the ion fan 4, a trumpet-shaped air outlet cover 41 is fixed at the output end of the ion fan 4, the negative pressure dust suction mechanism 5 includes a dust suction cover 51, the top of the dust suction cover 51 is connected to an exhaust pipe 52, the other end of the exhaust pipe 52 passes through the shell 2, and is connected to a negative pressure fan 53, the negative pressure fan 53 is installed at the top of the shell 2, the bottom ends of the dust suction cover 51 and the electrostatic generator 6A are parallel to the top of the mounting plate, the top of the shell 2 located above the coating roller 8 is provided with a hoisting port 22, and a sealing cover 23 is hinged on the hoisting port 22.

[0037] Further, such as Figure 1-3 As shown, the left and right ends of the leveling roller 3, the steering roller 7 and the bonding roller mechanism 9 are rotatably connected with the longitudinal moving mechanism 4A, the longitudinal moving mechanism 4A is fixed in the shell 2 by screws, and a central control unit 10 is installed on the outer wall of the shell 2. The central control unit 10 is respectively connected with the drive motor, the ion fan 4, the negative pressure fan 53, the electrostatic generator 6A, the first servo motor 937, the limit retractor 938 and multiple longitudinal moving mechanisms 4A signals.

[0038] Based on the above structure, Figure 1-6As shown, before use, the coating roller 8 with the film tube is first hoisted into the shell 2 through the hoisting port 22, and the end of the film is stretched from the top of the coating roller 8 to the side of the steering roller 7 close to the input end of the transmission system 1, and then the end of the film is turned along the outer wall of the steering roller 7 to the bottom of the steering roller 7, and then the film end is stretched to pass under the laminating roller mechanism 9 until the end of the film is stretched out of the shell 2, and then the longitudinal moving mechanism 4A is started by the central control unit 10 for extension and retraction, and the longitudinal moving mechanism 4A controls the distance between the bottom end of the leveling roller 3 and the steering roller 7 and the top end of the transmission belt to adapt to the height of the plastic part, and the longitudinal moving mechanism 4A controls the bottom of the two ends of the flexible tube 92 to contact with the top end of the transmission belt, and then the central control unit 10 starts the first servo motor 937, and the first servo The servo motor 937 drives the gear plate 934 to rotate via the driving gear 935. During the rotation of the gear plate 934, the slider 9312 is pushed / pulled to move via the arc-shaped limit groove 9341. The slider 9312 drives the arc-shaped plate 936 to extend / contract toward the side away from the rotating shaft 91 / toward the side close to the rotating shaft 91. The arc-shaped plate 936 drives the middle part of the flexible tube 92 to expand / contract, so that the distance between the bottom end of the middle outer wall of the flexible tube 92 and the top end of the transmission belt is adapted to the height of the plastic part. Then, the central control unit 10 controls the execution end of the limit retractor 938 to extend, so that the execution end of the limit retractor 938 extends and engages with the outer wall of the gear plate 934 to limit the rotation of the gear plate 934.

[0039] After the above work is completed, the driving motor, ion fan 4, negative pressure fan 53 and electrostatic generator 6A are started through the central control unit 10, and the worker places the plastic parts on the input end of the transmission system 1 in sequence. The transmission belt conveys the plastic parts through the leveling roller 3, the air outlet cover 41, the dust cover 51, the electrostatic generator 6A, the steering roller 7 and the bottom end of the laminating roller mechanism 9 in sequence, and finally discharged from the output end of the transmission system 1;

[0040] During this process, the leveling roller 3 presses the surface of the plastic part that is raised on one side due to placement problems, so that the plastic part is placed completely flat on the transmission belt;

[0041] The ion blower 4 inhales external air through the air inlet 21. When the air passes through the ion blower 4, the ion generator inside the ion blower generates a large number of positive and negative ions through tip discharge under the action of high voltage. When the air passes through, the positive and negative ions are driven to form an ion airflow. The ion airflow is blown from the output end of the air outlet cover 41 to the surface of the plastic part. The ion airflow neutralizes the positive / negative charges on the surface of the plastic part, thereby achieving the effect of removing static electricity on the surface of the plastic part, thereby reducing the adhesion of dust;

[0042] The negative pressure generated by the negative pressure fan 53 acts on the surface of the plastic part through the exhaust pipe 52 and the input end of the dust suction cover 51 in turn, thereby sucking out the dust attached to the surface of the plastic part;

[0043] The electrostatic generator generates a large amount of single-polarity static charges, which move to the surface of the plastic part under the action of the electric field, thereby increasing the static electricity on the surface of the plastic part;

[0044] The turning roller 7 presses the film to the top of the plastic part, and the film and the top of the plastic part are electrostatically adsorbed;

[0045] When the flexible tube 92 contacts the surface of the plastic part covered with the film, the bottom end of the flexible tube 92 deforms along with the curved surface of the plastic part, and the flexible tube 92 further presses the film, so that the film is completely electrostatically adsorbed on the surface of the plastic part, thereby completing the complete bonding of the film and the surface of the plastic part.

[0046] Preferably, a third servo motor and a fourth servo motor, both of which are connected to the central control unit 10 by signal, are also installed on the surface of the shell 2. The execution end of the third servo motor passes through the shell 2 and is transmission-connected to one end of the coating roller 8. The execution end of the fourth servo motor passes through the shell 2 and is transmission-connected to one end of the rotating shaft 91. A longitudinal limiting slide for the execution end of the fourth servo motor to pass through is arranged on the side wall of the shell 2. A sliding plate for installing the fourth servo motor is arranged on the side wall of the shell 2. Two limit strips are symmetrically arranged on the shell 2 on both sides of the sliding plate. The sliding plate and the limit strip are slidingly connected. The third servo motor and the fourth servo motor respectively control the release speed of the film and the rotation speed of the bonding roller mechanism 9 to be consistent with the conveying speed of the transmission belt.

[0047] Furthermore, in order to facilitate the replacement of various components in the laminating roller mechanism, the two ends of the flexible tube 92 are fixed to the outer walls of the two fixing plates 94 by multiple screws, and two sets of connecting units are symmetrically and integrally arranged on the inner wall of the flexible tube 92 on both sides of the diameter adjustment unit 93, such as Figure 5 As shown, the connecting unit is a plurality of protrusions 921 uniformly arranged around the inner wall of the flexible tube 92, and the protrusions 921 are fixed to the side wall of the arc plate 936 by screws. First, release the screw fixation between the end of the flexible tube 92 and the outer wall of the fixed disk 94, and flip the end of the flexible tube 92 toward the middle of the outer side, then release the screw fixation between the protrusion 921 and the arc plate 936, pull out the flexible tube 92, and replace the corresponding parts in the bonding roller mechanism.

[0048] Further, such as Figure 7As shown, in order to avoid wrinkles on the surface of the flexible tube between the two adjacent arc plates due to the fixation of screws when the middle part of the surface of the flexible tube shrinks, two arc grooves 9361 are symmetrically arranged on the left and right side walls of the arc plate 936, and two connecting blocks 9362 are symmetrically and slidably arranged in the arc groove 9361. The protrusions 921 are fixed to the connecting blocks 9362 by screws, and the number of protrusions 921 in the same group is equal to the number of connecting blocks 9362 on the corresponding side. The distance from the outer wall of the fully extended arc plate 936 to the axis center of the rotating shaft 91 is equal to the radius of the flexible tube 92. When the middle part of the surface of the flexible tube shrinks, the two connecting blocks 9362 in the same arc groove 9361 both slide to the opposite side along the arc groove 9361, thereby releasing the stress generated by the continuous approach of the ends of the two adjacent arc plates to squeeze the flexible tube, so as to avoid wrinkles on the surface of the flexible tube.

[0049] Embodiment 2

[0050] like Figure 8 As shown, in order to adapt to plastic parts of different widths, the technical feature that distinguishes Example 2 from Example 1 is that the laminating roller mechanism 9 also includes a positioning plate 95 that is transmission-connected to the middle of the rotating shaft 91, and two groups of connecting units are respectively arranged on both sides of the positioning plate 95. The protrusion 921 is fixed to the side wall of the corresponding side positioning plate 95 by screws. There are two diameter adjustment units 93, which are symmetrically arranged on both sides of the positioning plate 95. The outer wall of the arc plate 936 is fitted with and slidably connected to the inner wall of the flexible tube 92. A thread is provided on the outer wall of the rotating shaft 91. Both ends of the diameter adjustment unit 93, the fixed plate 94 and the positioning plate 95 are fixed by nuts that are threadedly connected to the outer wall of the rotating shaft 91 (for example: the two sides of the diameter adjustment unit 93 are fixed by two nuts), and the diameters of the diameter adjustment unit 93, the fixed plate 94 and the positioning plate 95 are equal.

[0051] Based on the above structure, Figure 8 As shown, release the nut that fixes the diameter adjustment unit 93, adjust the distance between the two diameter adjustment units 93 to match the width of the plastic part, and then fix the diameter adjustment unit 93 by the nut. At the same time, the central control unit 10 controls the distance between the bottom end of the positioning plate 95 and the top end of the transmission belt to match the height of the plastic part. Then the arc plate 936 extends out to increase the radius of the flexible tube 92 that contacts the surface of the arc plate 936.

[0052] Further, such as Figure 1-3As shown, in order to increase the electrostatic adsorption effect between the film and the plastic part, an ion rod 11 is installed in the housing 2 located at the coating roller 8 near the output end side of the transmission system 1, the ion rod 11 is parallel to the coating roller 8, and lateral moving mechanisms 111 are installed at both ends of the ion rod 11. The lateral moving mechanism 111 is installed in the housing 2 by screws, and a rangefinder 112 is installed on the ion rod 11. The ion rod 11, the lateral moving mechanism 111 and the rangefinder 112 are all connected to the central control unit 10 by signal. The ion rod 11 eliminates static electricity on the output film adsorption surface (the contact surface between the film and the plastic part), so that opposite charges are attracted when the film contacts the surface of the plastic part (opposite charges attract each other, and static adsorption occurs between an object with static electricity and an object without static electricity. This adsorption force causes the object without static electricity to be tightly adsorbed on the object with static electricity);

[0053] The distance meter 112 detects the distance between the ion rod 11 and the film, and feeds back to the central control unit 10. The central control unit 10 controls the lateral movement mechanism 111 to push the ion rod 11 to continuously approach the coating roller 8 as the radius of the film on the film cylinder continuously decreases.

[0054] Further, such as Fig.10 As shown, the lateral moving mechanism 111 includes a limit frame 1111 fixed with screws to the inner wall of the shell 2, a second sliding block 1113 is slidably installed in the limit frame 1111, the second sliding block 1113 is fixedly connected to the corresponding side end of the ion rod 11, and a second electric telescopic machine 1112 is installed at the end of the limit frame 1111 away from the coating roller 8. The execution end of the second electric telescopic machine 1112 passes through the outer wall of the installation frame 4A1 and is fixedly connected to the outer wall of the second sliding block 1113. The execution end of the second electric telescopic machine 1112 extends out and pushes the second sliding block 1113 to drive the ion rod 11 to move.

[0055] Further, such as Figure 3 As shown, in order to avoid the mutual influence between the static elimination of the ion fan and the static increase of the electrostatic generator, and at the same time to avoid the static charge generated by the electrostatic generator acting on the film, the first ion isolation plate 34 and the second ion isolation plate are respectively installed in the shell 2 between the ion fan 4 and the dust cover 51 and between the electrostatic generator 6A and the dust cover 51, and a special-shaped ion isolation plate 35 is integrally arranged on the outer wall of the second ion isolation plate located on the output end side of the transmission system 1. The special-shaped ion isolation plate 35 is used to install the electrostatic generator 6A. The available materials of the ion isolation plate include ferrite, ferromagnetism, glass fiber and plastic. Insulating paint is sprayed on the outer wall of the ion isolation plate. The first ion isolation plate 34, the second ion isolation plate and the special-shaped ion isolation plate 35 separate the ion fan 4, the dust cover 51, the electrostatic generator 6A and the film, so that each component forms its own independent space in the shell 2, thereby avoiding mutual influence.

[0056] Further, such as Figure 1-3 As shown, in order to prevent the ion airflow blown by the ion fan from affecting the treatment of the plastic part surface by the electrostatic generator and the treatment of the film by the ion rod, a plurality of exhaust fans 6 are evenly fixed on the mounting plate below the air outlet cover 41 from the input end to the output end of the transmission system 1, and an exhaust port 61 is provided on the mounting plate at the output end of the exhaust fan 6. The exhaust fan 6 discharges the ion airflow that has treated the surface of the plastic part through the exhaust port 61.

[0057] Further, such as Figure 1-3 As shown, in order to avoid manual cutting of the film, a cutting unit 12 is arranged in the shell 2 located near the output end of the transmission system 1 of the laminating roller mechanism 9, and the cutting unit 12 includes two symmetrically arranged mounting blocks 121, and a fixedly connected limit rod 122 and a rotatably connected screw rod 123 are sequentially installed between the two mounting blocks 121 from top to bottom, and a wire seat 124 is threadedly connected to the screw rod 123, and two limit blocks 125 are symmetrically arranged at the top of the wire seat 124, and the opposite sides of the two limit blocks 125 are both in contact with the outer wall of the limit rod 122 and are slidably connected, and a telescopic pump 126 is installed at the bottom end of the wire seat 124, and a laser cutting machine 127 is installed at the bottom end of the telescopic pump 126. A second servo motor 128 is installed on it, and the execution end of the second servo motor 128 passes through the outer wall of the shell 2 and the corresponding side mounting block 121 in sequence, and is transmission-connected to one end of the screw rod 123. The telescopic pump 126, the laser cutting machine 127 and the second servo motor 128 are all connected to the central control unit 10 signal. The second servo motor 128 drives the screw rod 123 to rotate, and the screw rod 123 drives the wire seat 124 to drive the telescopic pump 126 and the laser cutting machine 127 to move laterally in sequence. The laser cutting machine 127 cuts the film, and the telescopic pump 126 controls the distance between the laser cutting machine 127 and the film. The limit block 125 cooperates with the limit rod 122 to limit the wire seat 124 from rotating with the screw rod 123.

[0058] Preferably, a scanning unit connected to the central control unit 10 signal is provided in the shell 2 located at the output end side of the transmission system 1. The scanning unit detects the plastic parts after coating and feeds back to the central control unit 10. The central control unit 10 starts the cutting unit 12 to cut the film.

[0059] Further, such as Fig. 9As shown, the longitudinal moving mechanism 4A includes a mounting frame 4A1 fixedly connected to the inner wall of the housing 2, a sliding frame 4A3 is slidably installed in the mounting frame 4A1, a first sliding block 4A4 for rotatably connecting to the end of the leveling roller 3 / steering roller 7 / rotating shaft 91 is slidably arranged in the sliding frame 4A3, a pressure spring 4A5 is installed between the top of the first sliding block 4A4 and the top of the inner wall of the sliding frame 4A3, a first electric telescopic machine 4A2 is installed on the top of the mounting frame 4A1, and the execution end of the first electric telescopic machine 4A2 passes through the top of the mounting frame 4A1. The end is fixedly connected to the top end of the sliding frame 4A3, and the execution end of the first electric telescopic machine 4A2 is extended and retracted, thereby controlling the sliding frame 4A3 to drive the first sliding block 4A4 to move up and down, and the first sliding block 4A4 drives the smoothing roller 3 / steering roller 7 / rotating shaft 91 to move up and down. When the middle of the bottom end of the smoothing roller 3 / steering roller 7 / flexible tube 92 is lower than the top end of the plastic part, the reverse thrust generated by the plastic part acts on the first sliding block 4A4 through the smoothing roller 3 / steering roller 7 / rotating shaft 91, and the first sliding block 4A4 moves up, and the pressure spring 4A5 contracts.

[0060] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and invention concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Film laminating and packaging machine for curved surface plastic parts, characterized in that: The invention comprises a transmission system (1) and a film-coating packaging system arranged at the top of the transmission system (1), wherein the film-coating packaging system comprises a shell (2) fixedly mounted on the transmission system (1), wherein a leveling roller (3), an ion blower (4), a negative pressure dust suction mechanism (5), an electrostatic generator (6A), a steering roller (7), a film-coating roller (8) and a laminating roller mechanism (9) are sequentially mounted in the shell (2) from the input end to the output end of the transmission system (1), wherein the laminating roller mechanism (9) comprises a rotating shaft (91), a flexible cylinder (92), a diameter adjustment unit (93) and two symmetrically arranged fixed disks (94), wherein the diameter adjustment unit (93) is transmission-arranged in the middle of the rotating shaft (91), and the two fixed disks (94) are symmetrically and transmission-arranged. At both ends of the rotating shaft (91), the diameter adjustment unit (93) comprises an annular cylinder (931) drivingly connected to the rotating shaft (91), a cover body (932) for sealing the opening of the annular cylinder (931), a connecting cylinder (933) integrally arranged in the annular cylinder (931), a gear plate (934) rotatably connected to the connecting cylinder (933), a driving gear (935) rotatably arranged in the annular cylinder (931), and a plurality of arc-shaped plates (936) uniformly arranged along the outer wall of the annular cylinder (931), the outer wall of the driving gear (935) meshing with the outer wall of the gear plate (934), and the inner wall of the annular cylinder (931) away from the cover body (932) is uniformly provided with a plurality of T-shaped sliding grooves (9311), the T-shaped sliding grooves ( 9311) extends to the outer wall of the annular cylinder (931), a slide bar (9312) is slidably arranged in the T-shaped slide groove (9311), and one end of the slide bar (9312) away from the rotating shaft (91) is fixedly connected to the corresponding side arc plate (936), and a plurality of inclined arc-shaped limiting grooves (9341) are evenly arranged on the side wall of the gear plate (934), and the slide bar (9312) is fixedly connected to a limiting circular block (9313) near the middle of the outer wall of the cover body (932), and the end of the limiting circular block (9313) passes through the T-shaped opening of the T-shaped slide groove (9311) and extends to the arc-shaped limiting groove (9341) on the corresponding side, and the outer wall of the limiting circular block (9313) is respectively connected to the T-shaped opening and the arc-shaped limiting groove (9341). 41), the inner wall of the arc plate (936), the T-shaped slide groove (9311) and the arc-shaped limit groove (9341) are in equal numbers, the inner wall of the flexible cylinder (92) is fixedly connected to the outer walls of the plurality of arc plates (936) and the two fixed disks (94), the diameter of the annular cylinder (931) is 3 / 5 of the diameter of the fixed disk (94), the inner side wall of the annular cylinder (931) is fixedly mounted with a first servo motor (937) whose execution end is transmission-connected to a driving gear (935) and a limit retractor (938) whose execution end can mesh with the outer wall of the gear disk (934), the transmission system (1) comprises two symmetrically arranged mounting plates and a plurality of transmission rollers that are evenly and rotationally arranged between the two mounting plates,A plurality of transmission rollers are provided with transmission belts, a driving motor is installed on the outer wall of one of the mounting plates, an execution end of the driving motor passes through the mounting plate and is connected to the transmission roller at the end of the transmission system (1), the top end of the ion fan (4) is fixed to the top end of the inner wall of the shell (2), an air inlet (21) is provided at the top end of the inner wall of the shell (2) at the input end of the ion fan (4), a trumpet-shaped air outlet cover (41) is fixed at the output end of the ion fan (4), and the negative pressure dust suction mechanism (5) includes a dust suction device. A cover (51) is provided at the top of the dust cover (51), an exhaust pipe (52) is connected to the top of the exhaust pipe (52), the other end of the exhaust pipe (52) passes through the shell (2) and is connected to a negative pressure fan (53), the negative pressure fan (53) is installed at the top of the shell (2), the bottom ends of the dust cover (51) and the electrostatic generator (6A) are parallel to the top of the mounting plate, and a lifting port (22) is provided at the top of the shell (2) above the laminating roller (8), and a sealing cover (23) is hinged on the lifting port (22).

2. The film-laminating packaging machine for curved surface plastic parts according to claim 1, characterized in that: The left and right ends of the leveling roller (3), the steering roller (7) and the laminating roller mechanism (9) are rotatably connected to a longitudinal moving mechanism (4A); the longitudinal moving mechanism (4A) is fixed in the housing (2) by screws; a central control unit (10) is installed on the outer wall of the housing (2); the central control unit (10) is respectively connected to the drive motor, the ion fan (4), the negative pressure fan (53), the electrostatic generator (6A), the first servo motor (937), the limit retractor (938) and the plurality of longitudinal moving mechanisms (4A) by signals.

3. The film-laminating packaging machine for curved surface plastic parts according to claim 2, characterized in that: The two ends of the flexible tube (92) are fixed to the outer walls of the two fixing plates (94) by means of a plurality of screws, respectively. Two groups of connection units are symmetrically and integrally arranged on the inner wall of the flexible tube (92) located on both sides of the diameter adjustment unit (93). The connection units are a plurality of protrusions (921) uniformly arranged around the inner wall of the flexible tube (92). The protrusions (921) are fixed to the side wall of the arc plate (936) by means of screws.

4. The film-laminating packaging machine for arc-shaped plastic parts according to claim 3, characterized in that: Two arc-shaped slide grooves (9361) are symmetrically arranged on the left and right side walls of the arc-shaped plate (936), and two connecting blocks (9362) are symmetrically and slidably arranged in the arc-shaped slide grooves (9361). The protrusions (921) are fixed to the connecting blocks (9362) by screws, and the number of the protrusions (921) in the same group is equal to the number of the connecting blocks (9362) on the corresponding side.

5. The film-laminating packaging machine for arc-shaped plastic parts according to claim 3, characterized in that: The laminating roller mechanism (9) further comprises a positioning plate (95) which is transmission-connected to the middle of the rotating shaft (91); two groups of the connecting units are respectively arranged on both sides of the positioning plate (95); the protrusions (921) are fixed to the side walls of the corresponding side positioning plates (95) by means of screws; the diameter adjusting units (93) are two and are symmetrically arranged on both sides of the positioning plate (95); the outer wall of the arc plate (936) is in contact with and slidably connected to the inner wall of the flexible cylinder (92); the outer wall of the rotating shaft (91) is provided with threads; both ends of the diameter adjusting unit (93), the fixing plate (94) and the positioning plate (95) are fixed by nuts which are threadedly connected to the outer wall of the rotating shaft (91); and the diameters of the diameter adjusting unit (93), the fixing plate (94) and the positioning plate (95) are equal.

6. The film-laminating packaging machine for arc-shaped plastic parts according to claim 5, characterized in that: An ion rod (11) is installed in a housing (2) located on the side of the coating roller (8) close to the output end of the transmission system (1). The ion rod (11) is parallel to the coating roller (8). Transverse movement mechanisms (111) are installed at both ends of the ion rod (11). The transverse movement mechanism (111) is installed in the housing (2) by means of screws. A rangefinder (112) is installed on the ion rod (11). The ion rod (11), the transverse movement mechanism (111) and the rangefinder (112) are all connected to a central control unit (10) by signals.

7. The film-laminating packaging machine for arc-shaped plastic parts according to claim 6, characterized in that: A first ion isolation plate (34) and a second ion isolation plate are respectively installed in the housing (2) located between the ion fan (4) and the dust cover (51) and between the electrostatic generator (6A) and the dust cover (51); a special-shaped ion isolation plate (35) is integrally provided on the outer wall of the second ion isolation plate located on the output end side of the transmission system (1); and the electrostatic generator (6A) is installed in the special-shaped ion isolation plate (35).

8. The film-laminating packaging machine for arc-shaped plastic parts according to claim 5, characterized in that: A plurality of exhaust fans (6) are evenly fixed on the mounting plate located below the air outlet cover (41) in a direction from the input end to the output end of the transmission system (1), and an exhaust port (61) is provided on the mounting plate located at the output end of the exhaust fan (6).

9. The film-laminating packaging machine for arc-shaped plastic parts according to claim 5, characterized in that: A cutting unit (12) is arranged in the housing (2) located near the output end of the transmission system (1) of the laminating roller mechanism (9), and the cutting unit (12) comprises two symmetrically arranged mounting blocks (121), and a fixedly connected limit rod (122) and a rotatably connected screw rod (123) are sequentially installed between the two mounting blocks (121) from top to bottom, and a screw seat (124) is threadedly connected to the screw rod (123), and two limit blocks (125) are symmetrically arranged at the top of the screw seat (124), and opposite sides of the two limit blocks (125) are both connected to the limit rod (1 The outer wall of the housing (22) is fitted and slidably connected, a telescopic pump (126) is installed at the bottom end of the wire seat (124), a laser cutting machine (127) is installed at the bottom end of the telescopic pump (126), a second servo motor (128) is installed on the outer wall of the housing (2), an execution end of the second servo motor (128) passes through the outer wall of the housing (2) and the corresponding side mounting block (121) in sequence, and is transmission-connected to one end of the screw rod (123), and the telescopic pump (126), the laser cutting machine (127) and the second servo motor (128) are all signal-connected to the central control unit (10).

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