Full-automatic protective film sleeving machine for charger shell

Abstract

The invention discloses a full-automatic protective film sleeving machine for a charger shell. Comprising a chain conveying line arranged on a machine table, a feeding table arranged on the machine table and opposite to the initial end, conveying a charger, of the chain conveying line, a fixing assembly arranged on the chain conveying line, a film sleeving mechanism arranged on the machine table and located above the fixing assembly, and a film pressing assembly arranged on one side face of the chain conveying line and adjacent to the fixing assembly. The thermal shrinkage mechanism is arranged above the chain conveying line and is adjacent to the film pressing assembly; and the discharging mechanism is arranged on the machine table and is opposite to the tail end of the charger conveyed by the chain conveying line. The film laminating machine has the advantages of low cost, high film laminating efficiency, high film laminating precision, good film laminating alignment effect and the like, and solves the problem that the end surface of a charger is easily scratched due to the fact that a sheet type film laminating machine on the market cannot laminate a film on the end surface of the charger; and the problem that the film and the charger are easy to have an alignment error due to a rolling film pasting mode of a rolling wheel mechanism of a sheet type film pasting machine on the market is also solved.

Description

Technical Field

[0001] The invention relates to the field of film covering machines, and in particular to a fully automatic protective film covering machine for a charger shell. Background Art

[0002] With the development of the electronics industry, all kinds of electronic products need to be equipped with chargers for charging. The chargers need to be covered with protective film before leaving the factory for packaging. Traditionally, the protective film is covered on the charger manually. The protective film is peeled off from the release film manually, and then the protective film is pasted on the charger shell. The manual operation method of covering the charger with protective film has the disadvantages of poor alignment accuracy of the film pasting, low film pasting efficiency, high labor intensity of workers and high labor cost of film pasting for enterprises. With the development of automation technology, some sheet-type film laminating machines have appeared on the market. The sheet-type film laminating machines use a film stripping mechanism to strip the film. The robot absorbs the protective film and attaches it to the outer shell of the charger, and then the roller mechanism rolls the protective film to make the protective film stick to the surface of the charger outer shell. This film laminating method is prone to errors in aligning the film with the charger, and it needs to go through the processes of protective film stripping, transmission, robot attachment and rolling, resulting in cumbersome processes, long film laminating time, low film laminating efficiency and high film laminating cost. Moreover, it can only laminating the circumferential surface of the charger, but it cannot laminating the end face of the charger, so that the end face of the charger lacks the protection of the protective film and is easy to scratch. If the end face of the charger is laminating, it is necessary to add corresponding film laminating equipment to the end face of the charger, which greatly increases the volume of the film laminating equipment and the process of the film laminating equipment, thereby increasing the cost of the film laminating equipment and the film laminating cost, and further reducing the film laminating efficiency, which is not conducive to the long-term development of the industry. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a fully automatic protective film covering machine for a charger shell.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: the fully automatic protective film covering machine for the charger shell comprises a machine platform and a chain conveyor line, which is arranged on the machine platform and is used to convey the charger; The loading table is installed on the machine and opposite to the starting end of the chain conveyor line for conveying the charger, and is used to place the charger in front of the chain conveyor line for material preparation; A fixing component is provided on the chain conveyor line and is used to fix and limit the charger placed on the chain conveyor line before film covering; The film covering mechanism is arranged on the machine platform and located above the fixed component, and is used for conveying, cutting and expanding the tubular protective film strip and covering the charger with the protective film; The film pressing assembly is arranged on one side of the chain conveyor line and is adjacent to the fixing assembly, and is used to press the protective film sleeved on the charger into place; The heat shrink mechanism is arranged above the chain conveyor line and adjacent to the film pressing assembly, and is used to heat the protective film on the charger, so that the protective film shrinks under the heat and wraps around the charger; The unloading mechanism is arranged on the machine platform and is opposite to the end of the charger conveying chain conveyor line, and is used for unloading and recycling the charger after the film is finished; The unloading trough is arranged on the machine platform and docked with the end of the charger conveying chain conveyor line, and is used to convey the charger with the protective film applied for unloading and recycling; The control screen is installed on the machine platform and is used for human-computer interaction to control the charger cover protective film processing.

[0005] By adopting the above technical scheme, the overall design not only realizes the automatic unwinding, transmission, tension testing, tension adjustment, cutting and expansion of tubular protective film strips on one device, but also realizes a series of operations such as automatic loading and transmission of the charger, centering before film covering, protective film covering, film pressing and alignment, heat shrinking protective film and material recycling. In fact, there is no need to add corresponding end face film covering equipment to the charger. The protective film can be applied on all sides and the end face of the charger at the same time. It has the advantages of low film covering cost, high film covering efficiency, high film covering precision, good film covering alignment effect and wider protection surface of the charger. It not only effectively solves the problem of sheet film covering on the market The machine can only apply film to the circumferential surface of the charger, which makes the end face of the charger easily scratched, and it needs to add end face film applying equipment to the charger to apply film to the end face of the charger, which increases the cost of the film applying equipment, increases the volume of the film applying equipment, and increases the process of the film applying equipment. It also solves the problem that the sheet-type film applying machines on the market currently cannot combine the film applying on the circumferential surface of the charger and the film applying on the end face into one process even if the corresponding film applying equipment is added to the end face of the charger, resulting in low film applying efficiency. In addition, it also solves the problem that the sheet-type film applying machines on the market currently use a robot to apply the protective film and then use a roller mechanism to roll the protective film, which makes the alignment of the charger film easily offset.

[0006] Preferably, the chain conveyor line includes a chain bracket, a chain assembly is provided on the chain bracket, a fixture for carrying a charger is provided on the chain assembly, there is more than one fixture and two adjacent fixtures are equidistantly arranged, and the chain assembly is connected to a first driving device.

[0007] The first driving device is used to drive the chain assembly to transmit, and the chain assembly drives the fixture to move to transfer the charger between different workstations.

[0008] Preferably, the film covering mechanism comprises a film covering vertical plate; A height adjustment component is provided on one side of the film set vertical plate and is used to adjust the height of the protective film set in front of the charger; The film conveying assembly is arranged on the same side of the upper end of the film sleeve vertical plate and is used to convey the protective film; The unwinding assembly is arranged above the top of the film sleeve vertical plate and is used to unwind the tubular protective film material roll; The tension test component is arranged on one side of the film cover plate and is used to test the tension of the protective film belt conveyor; A tensioning assembly is provided on the other side of the upper end of the film sleeve vertical plate and is used to convey and tension the protective film material belt; The cutting assembly is arranged below the tensioning assembly and is used to clamp and cut the protective film strip and open the protective film tube hole; The film covering component is arranged below the tensioning component and is used to open the protective film tube hole and cover the charger with the protective film.

[0009] The unwinding component is used to unwind the protective film material roll, and the tension testing component is used to test the tension of the protective film material strip. The test result is fed back to the second driving device of the unwinding component. If the material strip tension is too large, the unwinding component accelerates the unwinding to release the material strip to relieve the material strip tension; if the material strip tension is too small, the unwinding component slows down the unwinding and tightens the material strip to increase the material strip tension. The tensioning component tensions the conveyed material strip to maintain the tension of the material strip. The cutting component clamps and cuts the material strip and sucks the two sides of the tubular protective film segment and opens the protective film tube hole. The film covering component opens the protective film tube hole, transfers the protective film, and automatically covers the protective film segment on the charger. It realizes automatic unwinding of the protective film material roll, material strip tension testing, material strip transmission tensioning, material strip cutting, and protective film covering the charger, so as to replace the traditional method of manually peeling the protective film from the release film, which greatly reduces the labor intensity of workers and reduces the labor cost of the enterprise, and has the advantages of high work efficiency, good film covering effect and low film covering cost.

[0010] Preferably, the height adjustment assembly includes a first bearing seat, on which are provided three first guide rod bearing assemblies and a first ball screw assembly, the three first guide rod bearing assemblies and the first ball screw assembly are parallel to each other, the upper ends of the guide rods of the three first guide rod bearing assemblies are commonly connected to a first guide rod connecting plate, a base is provided under the guide rods of the three first guide rod bearing assemblies, the guide rods of the three first guide rod bearing assemblies are respectively connected and installed with the base through a first support seat, the screw rod of the first ball screw assembly is rotatably connected with the first guide rod connecting plate through a screw rod bearing, the upper end of the screw rod of the first ball screw assembly is connected with a first hand wheel, and a first positioning locker is provided on the guide rod of any one of the three first guide rod bearing assemblies, and the first positioning locker is arranged on the first bearing seat.

[0011] By adopting the above-mentioned technical solution, rotating the first hand wheel can drive the screw of the first ball screw assembly to rotate and then drive the first bearing seat to rise and fall. The lifting of the first bearing seat can realize the height positioning of the protective film before the charger is covered to ensure that the protective film can be accurately covered on the outer shell of the charger.

[0012] The unwinding assembly includes an unwinding bracket arranged on the film sleeve vertical plate, and a second driving device for actively unwinding the tubular protective film roll is provided at the upper end of the unwinding bracket. The output end of the second driving device is transmission-connected to an unwinding roller for supporting the protective film roll, and the unwinding roller is provided with a material tray for limiting the protective film roll.

[0013] The second driving device is used to drive the unwinding roller to rotate, and the unwinding roller drives the material tray to rotate to unwind the protective film material roll, so that automatic active unwinding is realized.

[0014] The tension testing assembly includes an adjusting plate arranged on one side of the sleeve film vertical plate, a side surface of the upper end of the adjusting plate is provided with a first conduction roller, a second conduction roller and a third conduction roller for conveying the material belt, a tensioning roller is provided on the same side surface of the lower end of the adjusting plate, the material belt is sequentially crossed over the first conduction roller and the second conduction roller, supported over the tensioning roller and crossed over the third conduction roller, a second bearing seat is provided on the other side of the lower end of the adjusting plate, two second guide rod bearing assemblies are respectively provided on two ends of the second bearing seat, the upper ends of the guide rods of the two second guide rod bearing assemblies are commonly connected to the second guide rod connecting plate, the lower ends of the guide rods of the two second guide rod bearing assemblies are commonly connected to the third guide rod connecting plate, an adjusting groove is provided at the lower end of the adjusting plate, the adjusting groove is vertically arranged, the tensioning roller passes through the adjusting groove and is installed on the second bearing seat, the second guide rod connecting plate and the third guide rod connecting plate are commonly connected to the same end of the sensor positioning plate, the first proximity sensor and the second proximity sensor are sequentially provided on the sensor positioning plate from top to bottom, and a light shielding sheet adapted to be used with the first proximity sensor and the second proximity sensor is provided on the second bearing seat.

[0015] By adopting the above technical scheme, the material belt is led out from the unwinding assembly and sequentially passes over the first conduction roller and the second conduction roller, is wrapped around the tensioning roller and passes over the third conduction roller for transmission. When the material belt transmission speed cannot keep up with the material belt use speed, the material belt lifts up the tensioning roller, and the tensioning roller drives the second bearing seat and the shading sheet to rise. When the first proximity sensor senses the shading sheet, it sends a signal to the controller built into the second drive device of the unwinding assembly to accelerate the unwinding. When the material belt transmission speed is faster than the material belt use speed, the material belt is in a loose state, the tensioning roller is lowered, and the tensioning roller drives the second bearing seat and the shading sheet to be lowered synchronously. When the second proximity sensor senses the shading sheet, it sends a signal to the controller built into the second drive device of the unwinding assembly to slow down the unwinding. It controls the unwinding assembly to cooperate with accelerated unwinding or decelerated unwinding by real-time monitoring of the material belt tension to ensure the constancy of the material belt transmission tension.

[0016] The tensioning assembly includes a first roller, a second roller, a fourth conduction roller and a fifth conduction roller which are arranged on one side of the top of the film sleeve vertical plate. The first roller, the second roller, the fourth conduction roller and the fifth conduction roller are at the same level. An elastic paddle is provided above the fourth conduction roller, and the elastic paddle is fixed to the film sleeve vertical plate through a paddle bracket.

[0017] By adopting the above technical solution, the protective film material strip passes through the first roller, the second roller, the fourth conduction roller and the fifth conduction roller in sequence after being unwound from the unwinding assembly, and the elastic paddle presses the protective film material strip between the fourth conduction roller and the fifth conduction roller to adjust the tension of the protective film material strip.

[0018] Preferably, the film feeding assembly includes a first mounting plate, a third driving device is provided on the first mounting plate, an output end of the third driving device is connected to a film feeding movable plate, a fourth driving device, a first linear sliding module and a film feeding active roller are provided on one side surface of the film feeding movable plate, the film feeding movable plate is transmission-connected to the film sleeve vertical plate through the first linear sliding module, the film feeding movable plate moves linearly on the film sleeve vertical plate, a pulley assembly is connected between the fourth driving device and the film feeding active roller, the fourth driving device is transmission-connected to the film feeding active roller through the pulley assembly, a tensioning wheel for tensioning and adjusting the pulley assembly is provided on the other side surface of the film feeding movable plate, the tensioning wheel is fixed to the film feeding movable plate through a tensioning wheel positioning plate, a film feeding passive roller is provided on one side of the film feeding active roller, the film feeding passive roller is rotationally connected to the film sleeve vertical plate, and the film feeding passive roller is located on the straight line where the film feeding active roller moves.

[0019] The third driving device is used to drive the film feeding moving plate to move back and forth, thereby driving the active film feeding roller to move away from or close to the passive film feeding roller. When the active film feeding roller is separated from the passive film feeding roller, the protective film material belt passes between the active film feeding roller and the passive film feeding roller to complete the threading of the film feeding belt. The active film feeding roller and the passive film feeding roller are closed to clamp the protective film material belt and thus complete the transmission and positioning of the protective film material belt. The fourth driving device drives the active film feeding roller to rotate through the pulley assembly to transport the protective film material belt to the cutting segment assembly.

[0020] Preferably, the cutting section assembly includes a cutting section horizontal plate arranged on the sleeve film vertical plate, the cutting section horizontal plate is provided with a cutting section vertical plate, a second linear sliding module is provided on one side of the cutting section vertical plate, a screw rod connecting seat is provided on the second linear sliding module, a second ball screw assembly is connected to the screw rod connecting seat, a knob is provided on the upper end of the screw of the second ball screw assembly, the second ball screw assembly is mounted on the cutting section vertical plate through a third bearing seat, a second mounting plate is provided on the screw rod connecting seat, a fifth driving device is provided on the second mounting plate, a sixth driving device is provided on the output end of the fifth driving device, two suction plates for sucking the two side surfaces of the protective film material strip are provided on the output end of the sixth driving device, the fifth driving device and the sixth driving device are respectively located on the other side of the cutting section vertical plate, a seventh driving device is provided above the sixth driving device, and the seventh driving device is fixed to the cutting section vertical plate through the third mounting plate.

[0021] By adopting the above-mentioned technical solution, the twisting knob drives the screw connecting seat to move up and down on the second linear sliding module through the second ball screw assembly, thereby driving the fifth drive device and the sixth drive device to move up and down to adjust the height of the sixth drive device to drive the suction plate to clamp the protective film strip. The fifth drive device drives the sixth drive device to approach the protective film strip until the protective film strip enters between the two suction plates. The sixth drive device drives the two suction plates to close to clamp the protective film strip. The seventh drive device cuts the protective film. The two suction plates respectively suck the two sides of the cut protective film. The sixth drive device drives the two suction plates to open to open the protective film tube hole, thereby solving the problem that the sheet-type film laminating machines on the market cannot open the protective film tube hole.

[0022] Preferably, the film sleeve assembly includes an eighth driving device, a ninth driving device is provided on the output end of the eighth driving device, the eighth driving device drives the ninth driving device to rotate, a first bottom plate is provided on the output end of the ninth driving device, a third linear sliding module is provided on the first bottom plate, a first moving seat and a second moving seat are provided on two sliding parts of the third linear sliding module, the first moving seat and the second moving seat are arranged oppositely, a first support plate and a second support plate are provided on the first moving seat and the second moving seat, the first support plate and the second support plate are arranged oppositely, a fourth mounting plate and a fifth mounting plate are provided on both ends of the first bottom plate, a tenth driving device and an eleventh driving device are provided on the fourth mounting plate and the fifth mounting plate, respectively, the tenth driving device and the eleventh driving device are arranged oppositely, the tenth driving device drives the first moving seat to move linearly on the third linear sliding module, the eleventh driving device drives the second moving seat to move linearly on the third linear sliding module, a first elastic member is connected between the fourth mounting plate and the first moving seat, a second elastic member is connected between the fifth mounting plate and the second moving seat, the first moving seat and the second moving seat respectively drive the first support plate and the second support plate away from each other to open the protective film tube hole. The structural design of the film covering assembly enables the protective film to be applied to the circumferential surface and both end faces of the charger at the same time, thereby combining the two processes of film covering the circumferential surface and the end faces of the charger into one. This solves the problem of low film covering efficiency in the sheet-type film covering machines on the market, as even if equipment for film covering the end faces of the charger is added, the film is first applied to the circumferential surface of the charger and then to the end faces of the charger.

[0023] Specifically, the tenth driving device and the eleventh driving device are respectively used to push the first moving seat and the second moving seat closer to each other, and the first moving seat and the second moving seat respectively drive the first support plate and the second support plate to close each other, and when the eighth driving device rotates, the ninth driving device is driven by the eighth driving device to rotate upward and dock with the cutting segment assembly, and after the ninth driving device drives the first support plate and the second support plate to rise and insert into the protective film tube hole, the tenth driving device and the eleventh driving device are respectively retracted to release the pushing of the first moving seat and the second moving seat, and the first elastic member and the second elastic member respectively pull the first moving seat and the second moving seat away from each other to open the tube hole of the tubular protective film, and the ninth driving device drives the first support plate and the second support plate to lower and remove the tubular protective film from the cutting segment assembly, thereby realizing the receiving of the tubular protective film material segment from the cutting segment assembly; the eighth driving device rotates the ninth driving device The first and second supporting plates are moved closer to each other, and the first and second supporting plates are moved closer to each other, and the first and second supporting plates are moved closer to each other, and the ninth supporting plate is moved back to drive the first and second supporting plates to rise, so that the first and second supporting plates can be withdrawn from the protective film holes. The ninth supporting plate is automatically received, flipped and transported, and the protective film can be applied to the four sides and two end surfaces of the charger at the same time. The charger has the advantages of high efficiency and good effect of applying the protective film, so as to solve the problem that the sheet-type film laminating machine on the market can not only fail to apply the protective film to the end surface of the charger, but also fail to apply the protective film to the four sides and two end surfaces of the charger at the same time.

[0024] Preferably, the fixing assembly comprises a twelfth driving device and a thirteenth driving device, and the twelfth driving device and the thirteenth driving device are arranged opposite to each other; a clamping block mounting plate is provided on the output end of the twelfth driving device, and the two ends of the clamping block mounting plate are respectively provided with a first clamping block and a second clamping block on a side facing the thirteenth driving device, a positioning groove is provided on the first clamping block, and a clamping block is integrally formed with the first clamping block on a side surface of the first clamping block facing the thirteenth driving device, and the first clamping block and the second clamping block are arranged in a mirror-symmetrical manner; a clamping plate is provided at the output end of the thirteenth driving device.

[0025] By adopting the above-mentioned technical scheme, the first clamp block and the second clamp block are respectively positioned and fixed on the clamp block mounting plate through the positioning grooves, the distance between the two clamping blocks on the first clamp block and the second clamp block is the length of one side of the charger, and the twelfth driving device and the thirteenth driving device respectively drive the clamp block mounting plate and the clamping plate to clamp and center the charger, so as to facilitate the precise installation of the tubular protective film on the charger shell, thereby improving the accuracy of the protective film of the charger cover.

[0026] The film pressing assembly includes a sixth mounting plate, a pressing groove is provided on the upper end of the sixth mounting plate, a fourteenth driving device is provided on the side of the sixth mounting plate facing away from the chain conveyor line, a pressure plate is provided on the output end of the fourteenth driving device, the pressure plate passes through the pressing groove, the fourteenth driving device drives the pressure plate to descend to press the protective film on the charger housing into place, and a reference block for lateral support of the charger is provided on the side of the sixth mounting plate facing the chain conveyor line.

[0027] The fourteenth driving device of the film pressing assembly drives the pressing plate to descend to press the protective film on the charger into place, and the reference block supports the side of the charger to prevent the charger from tilting during the pressing of the protective film and to prevent the alignment error between the protective film and the charger, which ensures good alignment between the protective film and the charger, good effect of covering the protective film and high efficiency of the charger covering the protective film, thereby solving the problem that the sheet-type film laminating machines on the market first use a robot to stick the protective film and then use a roller mechanism to roll the protective film, which makes the alignment of the charger film easily offset.

[0028] Preferably, the heat shrink mechanism includes a mounting frame, one side of the mounting frame is connected to two third guide rod bearing assemblies, the upper ends of the guide rods of the two third guide rod bearing assemblies are commonly connected to a fourth guide rod connecting plate, a seventh mounting plate is provided below the guide rods of the two third guide rod bearing assemblies, the lower ends of the guide rods of the two third guide rod bearing assemblies are respectively connected and installed with the seventh mounting plate through the second support seat, a fifteenth driving device is provided on the seventh mounting plate, the output end of the fifteenth driving device is connected and installed with the mounting frame, and the fifteenth driving device drives the mounting frame to move up and down on the guide rods of the two third guide rod bearing assemblies; the other side of the mounting frame is connected to a heat shrink box, a heat shrink channel is laterally recessed at the bottom of the heat shrink box, the vertical cross-section of the inner wall of the heat shrink channel is U-shaped, ventilation grooves are respectively provided on the two side walls of the heat shrink channel, heating tubes are respectively provided on the two outer sides of the heat shrink channel, a sixteenth driving device is provided above the heat shrink channel, and a turbofan is provided on the output end of the sixteenth driving device.

[0029] By adopting the above technical scheme, the charger covered with the protective film is transported along the heat shrink channel along the chain conveyor line, and the sixteenth driving device drives the turbofan to rotate to dissipate the wind in the heat shrink box to exchange heat with the heating tube, and the heated hot air is blown to the charger conveyed in the heat shrink channel through the ventilation slot, and the protective film on the charger shell heats up and shrinks to wrap the charger to complete the protective film on the charger, and the protective film covers the entire outer surface of the charger except the two metal terminals and the charging interface to achieve maximum protection for the charger film, so that the charger surface is more fully protected, so that it can further improve the charger film coating efficiency, and there is no need to add an end face film pasting process to the charger, nor is there any need to add corresponding charger end face film pasting equipment, so as to solve the problem that the sheet film pasting machine on the market can not film the end face of the charger while pasting film on the surrounding of the charger.

[0030] The cam is an assembly made of a plurality of fourth guide rods, each of which is connected to a pair of fourth guide rods having a plurality of guide rods, each of which is connected to a pair of fifth guide rods having a plurality of guide rods connected to the pair of fourth guide rods having a plurality of guide rods connected to the pair of fourth guide rods having a plurality of guide rods connected to the pair of fourth guide rods having a plurality of guide rods connected to the pair of fourth guide rods having a plurality of guide rods connected to the pair of fourth guide rods having a plurality of guide rods connected to the pair of fourth guide rods having a plurality of guide rods connected to the pair of The height of the eighth mounting plate is positioned, a seventeenth driving device and a fourth linear sliding module are arranged on the other side of the eighth mounting plate, the output end of the seventeenth driving device and the sliding part of the fourth linear sliding module are commonly connected with a ninth mounting plate, the ninth mounting plate is connected with an eighteenth driving device, the output end of the eighteenth driving device is provided with a tenth mounting plate, a nineteenth driving device is arranged on the bottom surface of the tenth mounting plate, two clamping arms are arranged on the output end of the nineteenth driving device, the two clamping arms are arranged opposite to each other, each clamping arm is respectively provided with an adjusting screw, the two adjusting screws are in the same straight line, and rubber blocks are respectively arranged on the opposite end surfaces of the two adjusting screws, a first buffer and a second buffer are respectively arranged on both sides of the ninth mounting plate, the first buffer is fixed to one end of the eighth mounting plate through the tenth mounting plate, and the second buffer is fixed to the other end of the eighth mounting plate through the eleventh mounting plate.

[0031] By adopting the above technical solution, the height of the charger clamped by the nineteenth drive device is adjusted by the second ball screw assembly when the second hand wheel is rotated, so that it can clamp chargers of different sizes and has strong versatility; the nineteenth drive device drives the two clamping arms to approach each other and then drives the two rubber blocks to approach each other to clamp the charger with the protective film, the seventeenth drive device and the eighteenth drive device cooperate with each other to perform vertical two-dimensional spatial positioning of the nineteenth drive device and the charger clamped by the nineteenth drive device, so as to clamp the charger with the protective film from the chain conveyor line and transfer it to the unloading trough for recycling, the two rubber blocks have a buffering protection effect when clamping the charger to avoid clamping the charger, and it realizes automatic unloading while having the advantages of high charger clamping accuracy, high charger unloading and recycling efficiency and low charger unloading cost.

[0032] Preferably, the control panel is built-in or internally equipped with a controller or control system for signal control with components such as the film sleeve mechanism, chain conveyor line, fixing assembly, film pressing assembly, heat shrink mechanism and unloading mechanism. The controller is a PLC programmable logic controller. The PLC programmable logic controller can adopt a programmable logic controller of model XDS-40T-D, but is not limited to this.

[0033] Compared with the prior art, the present invention has the following beneficial effects: 1. Its overall design not only realizes the automatic unwinding, transmission, tension testing, tension adjustment, segment cutting and hole expansion of tubular protective film strips on one device, but also realizes a series of operations such as automatic loading and transmission of chargers, centering before film covering, protective film covering, film pressing and alignment, heat shrinking protective film and material recycling. It realizes that the circumference and both end faces of the charger can be covered with protective film at the same time without adding corresponding end face film covering equipment to the charger. It avoids increasing the cost of film covering equipment, increasing the volume of film covering equipment and increasing the number of film covering processes, so that it has the advantages of low cost, high film covering efficiency, high film covering accuracy, good film covering alignment effect and wider protection surface of the charger.

[0034] 2. The structure of the fixing component, the film covering mechanism and the heat shrinking mechanism are designed respectively, so that the fixing component can center the charger before the protective film is covered, so as to ensure the high precision and good effect of the subsequent protective film covering; the segment cutting component of the film covering mechanism can clamp, cut, and suck the two sides of the tubular protective film segment and open the protective film tube hole of the conveyed material belt; the film covering component of the film covering mechanism can receive the protective film from the segment cutting component, flip and convey the protective film, and cover the protective film on the outer shell of the charger, so that the film covering mechanism can cover the charger with the protective film once to complete the film covering of the circumference and the two end faces of the charger, that is, it realizes the combination of the circumference film covering process and the end face film covering process of the charger, thereby greatly improving the film covering efficiency of the charger; and the heat shrinking mechanism can realize The protective film is simultaneously wrapped on the circumferential surface of the charger and all surfaces of the two end faces except the two metal terminals and the charging interface, that is, it can combine the process of wrapping the circumference of the charger with the protective film and the process of wrapping the end face with the protective film into one, thereby greatly improving the wrapping efficiency of the charger. It not only effectively solves the problem that the sheet-type film laminating machines currently on the market can only apply film to the circumferential surface of the charger, which makes the end face of the charger easy to be scratched, and that it is necessary to add end face film laminating equipment to the charger to apply film to the end face of the charger, which increases the cost of the film laminating equipment, increases the volume of the film laminating equipment, and increases the process of the film laminating equipment, it also solves the problem that the sheet-type film laminating machines currently on the market cannot combine the two processes of film laminating on the circumferential surface of the charger and film laminating on the end face into one even if the corresponding film laminating equipment is added to the end face of the charger, resulting in low film laminating efficiency.

[0035] 3. The structure of the film pressing component is designed so that the charger with the protective film can be pressed into place before the heat shrink protective film is applied. The reference block supports the side of the charger to prevent the charger from tilting when the protective film is applied. This ensures that the charger and the protective film are well aligned with high accuracy after heat shrinkage by the heat shrink mechanism, thereby effectively solving the problem that the film-applying machine on the market first uses a robot to apply the protective film and then uses a roller mechanism to roll the protective film, which makes the alignment of the charger film easily offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] For ease of explanation, the present invention is described in detail with reference to the following preferred embodiments and the accompanying drawings.

[0037] Figure 1 It is a three-dimensional diagram of the fully automatic protective film covering machine for the charger shell of the present invention.

[0038] Figure 2 It is a three-dimensional diagram of the chain conveyor line of the charger shell fully automatic protective film covering machine of the present invention.

[0039] Figure 3 It is a three-dimensional diagram of the film covering mechanism of the fully automatic protective film covering machine for the charger shell of the present invention.

[0040] Figure 4 The charger shell fully automatic protective film covering machine of the present invention Figure 3 Stereoscopic images in different directions.

[0041] Figure 5 It is a stereoscopic diagram of the tension test assembly of the charger shell fully automatic protective film covering machine of the present invention.

[0042] Figure 6 The charger shell fully automatic protective film covering machine of the present invention Figure 5 Stereoscopic images in different directions.

[0043] Figure 7 It is a stereoscopic view of the film feeding assembly of the charger shell fully automatic protective film covering machine of the present invention.

[0044] Figure 8 The charger shell fully automatic protective film covering machine of the present invention Figure 7 Stereoscopic images in different directions.

[0045] Fig. 9 It is a three-dimensional diagram of the cutting assembly of the charger shell fully automatic protective film covering machine of the present invention.

[0046] Fig.10 The charger shell fully automatic protective film covering machine of the present invention Fig. 9 Stereoscopic images in different directions.

[0047] Fig.11 It is a three-dimensional diagram of the film covering assembly of the fully automatic protective film covering machine for the charger shell of the present invention.

[0048] Fig.12 It is a three-dimensional diagram of the fixing components of the charger shell fully automatic protective film covering machine of the present invention.

[0049] Fig.13 It is a three-dimensional diagram of the film pressing assembly of the charger shell fully automatic protective film covering machine of the present invention.

[0050] Fig.14 It is a three-dimensional diagram of the heat shrink mechanism of the charger shell fully automatic protective film covering machine of the present invention.

[0051] Fig.15 The charger shell fully automatic protective film covering machine of the present invention Fig.14 Stereoscopic images in different directions.

[0052] Fig.16 It is a three-dimensional diagram of the unloading mechanism of the charger shell fully automatic protective film covering machine of the present invention.

[0053] Fig.17 It is a rear view of the unloading mechanism of the charger shell fully automatic protective film covering machine of the present invention.

[0054] Fig.18 The charger shell fully automatic protective film covering machine of the present invention Fig.16 Stereoscopic images in different directions. DETAILED DESCRIPTION

[0055] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0057] Reference Figure 1 As shown, the fully automatic protective film covering machine for the charger shell of the present invention comprises a machine 1, a chain conveyor line 2 arranged on the machine 1, a loading platform 3 arranged on the machine 1 and opposite to the starting end of the chain conveyor line 2 for conveying a charger, a fixing component 4 arranged on the chain conveyor line 2, a film covering mechanism 5 arranged on the machine 1 and located above the fixing component 4, a film pressing component 6 arranged on one side of the chain conveyor line 2 and adjacent to the fixing component 4, a heat shrinking mechanism 7 arranged above the chain conveyor line 2 and adjacent to the film pressing component 6, a material unloading mechanism 8 arranged on the machine 1 and opposite to the end of the chain conveyor line 2 for conveying a charger, a material unloading trough 9 arranged on the machine 1 and docked with the end of the chain conveyor line 2 for conveying a charger, and a control screen 10 arranged on the machine 1, wherein the chain conveyor line 2 is used to convey a charger; Specifically, the loading table 3 is used to place the charger before the chain conveyor line 2 for material preparation; the fixing component 4 is used to fix and limit the charger placed on the chain conveyor line 2 before film covering; the film covering mechanism 5 is used to convey, cut, expand holes in the tubular protective film material belt and cover the charger with protective film; the film pressing component 6 is used to press the protective film covered on the charger into place; the heat shrinking mechanism 7 is used to heat the protective film covered on the charger so that the protective film shrinks due to the heat and is automatically wrapped around the charger; the unloading mechanism 8 is used to unload the charger that has completed the film covering; the unloading chute 9 is used to convey the charger that has completed the protective film covering for unloading and recycling; the control screen 10 is used for human-computer interaction to control the processing of the charger protective film covering.

[0058] Reference Figure 2As shown, the chain conveyor line 2 includes a chain bracket 21, a chain assembly 22 is provided on the chain bracket 21, a fixture 23 for carrying a charger 24 is provided on the chain assembly 22, more than one fixture 23 is provided and two adjacent fixtures 23 are equidistantly arranged, and the chain assembly 22 is connected to a first driving device 25.

[0059] Specifically, the chain assembly 22 is provided with two sprockets, and a chain is connected between the two sprockets. The first drive device 25 includes a servo motor and a coupling. The servo motor of the first drive device 25 is connected to one of the sprockets through the coupling, and the servo motor of the first drive device 25 is fixed to the chain bracket 21 through the first mounting frame 26.

[0060] Reference Figure 3 As shown, the film covering mechanism 5 includes a film covering plate 50; a height adjustment component 51, which is arranged on one side of the film covering plate 50 and is used to adjust the height of the protective film before it is put on the charger; a film feeding component 52, which is arranged on the same side of the upper end of the film covering plate 50 and is used to convey the protective film; a reeling component 53, which is arranged above the top of the film covering plate 50 and is used to reel the tubular protective film material roll; a tension testing component 54, which is arranged on one side of the film covering plate 50 and is used to test the tension of the protective film material belt conveying; a tensioning component 55, which is arranged on the other side of the upper end of the film covering plate 50 and is used to convey and tension the protective film material belt; a segment cutting component 56, which is arranged below the tensioning component 55 and is used to clamp, cut and open the protective film tube hole; a film covering component 57, which is arranged below the tensioning component 55 and is used to open the protective film tube hole and cover the charger with the protective film. The structural design of the film wrapping mechanism 5 realizes the automatic unwinding of the protective film material roll, the material strip tension test, the material strip transmission tensioning, the material strip segment cutting and the protective film wrapping of the entire charger (including the surrounding and two end surfaces of the charger), which has the advantages of high film wrapping efficiency, high film wrapping precision and good film wrapping effect.

[0061] Reference Figure 4As shown, the height adjustment assembly 51 includes a first bearing seat 510, and the first bearing seat 510 is provided with three first guide rod bearing assemblies 511 and a first ball screw assembly 512. The three first guide rod bearing assemblies 511 and the first ball screw assembly 512 are parallel to each other. In this embodiment, each first guide rod bearing assembly 511 includes a guide rod and a bearing, and the guide rod is connected and installed with the first bearing seat 510 through a bearing; the first ball screw assembly 512 includes a screw rod and a nut fixing seat, and the screw rod is rotatably connected with the nut fixing seat; in other embodiments, the first guide rod bearing assembly 511 may also include a guide rod and a guide sleeve, and the first guide rod bearing assembly 511 and the first ball screw assembly 512 may be set differently according to actual conditions. The number is not limited to this; the upper ends of the guide rods of the three first guide rod bearing assemblies 511 are commonly connected to the first guide rod connecting plate 513, and the guide rods of the three first guide rod bearing assemblies 511 are provided with a base 514 below. The guide rods of the three first guide rod bearing assemblies 511 are respectively connected and installed with the base 514 through the first support seat 515, and the screw rod of the first ball screw assembly 512 is rotatably connected with the first guide rod connecting plate 513 through the screw rod bearing 516. The upper end of the screw rod of the first ball screw assembly 512 is connected with the first hand wheel 517, and the guide rod of any one of the three first guide rod bearing assemblies 511 is provided with a first positioning locker 518, and the first positioning locker 518 is arranged on the first bearing seat 510. The structural design of the height adjustment assembly 51 can realize the height adjustment and positioning of the protective film before it is put on the charger, so as to ensure that the protective film can be accurately put on the outer shell of the charger and is suitable for accurately putting the protective film on chargers of different specifications.

[0062] Reference Figure 3 and Figure 4 As shown, the unwinding assembly 53 includes an unwinding bracket 531 arranged on the film sleeve vertical plate 50, and a second driving device 532 for actively unwinding the tubular protective film roll is provided at the upper end of the unwinding bracket 531, and an unwinding roller 533 for supporting the protective film roll is transmission-connected at the output end of the second driving device 532, and a material tray 534 for limiting the protective film roll is provided on the unwinding roller 533.

[0063] Specifically, the structure of the second driving device 532 is the same as that of the first driving device 25, and the second driving device 532 also includes a servo motor and a coupling. The servo motor of the second driving device 532 is fixed to the unwinding bracket 531 through a connecting rod 535, and the servo motor of the second driving device 532 is connected to the unwinding roller 533 through a coupling. The material tray 534 is installed on the unwinding roller 533, and the protective film material roll is installed on the material tray 534.

[0064] Reference Figure 5 and Figure 6As shown, the tension testing assembly 54 includes an adjusting plate 541 arranged on one side of the film sleeve vertical plate 50, and a first conductive roller 542, a second conductive roller 543 and a third conductive roller 544 for conveying the material belt are arranged on a side of the upper end of the adjusting plate 541, and a tensioning roller 545 is arranged on the same side of the lower end of the adjusting plate 541. The material belt sequentially crosses the first conductive roller 542 and the second conductive roller 543, the tensioning roller 545 and the third conductive roller 544, and a second bearing seat 546 is arranged on the other side of the lower end of the adjusting plate 541. Two second guide rod bearing assemblies 547 are respectively arranged on the two ends of the second bearing seat 546. In this embodiment, the second guide rod bearing assembly 547 has the same structure as the first guide rod bearing assembly 511. In other embodiments, the second guide rod bearing assembly 547 can be set with different numbers according to actual conditions. The amount is not limited to this; the upper ends of the guide rods of the two second guide rod bearing assemblies 547 are commonly connected to the second guide rod connecting plate 548, the lower ends of the guide rods of the two second guide rod bearing assemblies 547 are commonly connected to the third guide rod connecting plate 549, the lower end of the adjustment plate 541 is provided with an adjustment slot 540, the adjustment slot 540 is vertically arranged, the tensioning roller 545 passes through the adjustment slot 540 and is installed on the second bearing seat 546, the second guide rod connecting plate 548 and the third guide rod connecting plate 549 are commonly connected to the sensor positioning plate 5490 at the same end, the sensor positioning plate 5490 is provided with a first proximity sensor 5491 and a second proximity sensor 5492 from top to bottom, and the second bearing seat 546 is provided with a shading sheet 5493 which is respectively adapted to the first proximity sensor 5491 and the second proximity sensor 5492.

[0065] Reference Figure 3 As shown, the tensioning assembly 55 includes a first roller 551, a second roller 552, a fourth conduction roller 553 and a fifth conduction roller 554 which are arranged on one side of the top of the film sleeve stand 50. The first roller 551, the second roller 552, the fourth conduction roller 553 and the fifth conduction roller 554 are at the same level. An elastic paddle 555 is provided above the fourth conduction roller 553. The elastic paddle 555 is fixed to the film sleeve stand 50 through a paddle bracket 556.

[0066] Reference Figure 7 and Figure 8As shown, the film feeding assembly 52 includes a first mounting plate 521, on which a third driving device 522 is provided, and an output end of the third driving device 522 is connected to a film feeding moving plate 523, and a fourth driving device 524, a first linear sliding module 525 and a film feeding active roller 526 are provided on one side of the film feeding moving plate 523, the film feeding moving plate 523 is connected to the film sleeve vertical plate 50 through the first linear sliding module 525, the film feeding moving plate 523 moves linearly on the film sleeve vertical plate 50, and the fourth driving device 524 and the film feeding active roller 526 are connected to the film sleeve vertical plate 50. A pulley assembly 527 is connected between the film feeding roller 526, and the fourth driving device 524 is connected to the film feeding active roller 526 through the pulley assembly 527. A tensioning wheel 528 for tensioning and adjusting the pulley assembly 527 is provided on the other side of the film feeding movable plate 523. The tensioning wheel 528 is fixed to the film feeding movable plate 523 through a tensioning wheel positioning plate 529. A film feeding passive roller 520 is provided on one side of the film feeding active roller 526. The film feeding passive roller 520 is rotatably connected to the film sleeve vertical plate 50, and the film feeding passive roller 520 is located on the straight line of movement of the film feeding active roller 526.

[0067] Specifically, in this embodiment, the first linear sliding module 525 includes a slide rail and a slider (i.e., a sliding part), the slider is arranged on the slide rail, and more than one slider can be arranged according to the needs of use; the third driving device 522 is a cylinder, and the fourth driving device 524 is a servo motor. The pulley assembly 527 includes two synchronous wheels or pulleys, and a synchronous belt or belt connecting the two synchronous wheels. In other embodiments, the pulley assembly 527 can also be set as a gear rack module, so it is not limited to this.

[0068] Reference Fig. 9 and Fig.10As shown, the cutting section assembly 56 includes a cutting section horizontal plate 560 arranged on the film sleeve vertical plate 50, and a cutting section vertical plate 561 is arranged on the cutting section horizontal plate 560, and a second linear sliding module 562 is arranged on one side of the cutting section vertical plate 561, and the second linear sliding module 562 has the same structure as the first linear sliding module 525; a screw rod connecting seat 563 is arranged on the second linear sliding module 562, and the screw rod connecting seat 563 is connected to a second ball screw assembly 564, and the second ball screw assembly 564 has the same structure as the first ball screw assembly 512; a knob 565 is arranged on the upper end of the screw rod of the second ball screw assembly 564, and the second ball screw assembly 564 is rotated by the second ball screw assembly 512. The three bearing seats 566 are mounted on the cutting plate 561, the screw connecting seat 563 is provided with a second mounting plate 567, the second mounting plate 567 is provided with a fifth driving device 568, the output end of the fifth driving device 568 is provided with a sixth driving device 569, the output end of the sixth driving device 569 is provided with two suction plates 5690 for sucking the two sides of the protective film strip, the fifth driving device 568 and the sixth driving device 569 are respectively located on the other side of the cutting plate 561, the sixth driving device 569 is provided above the seventh driving device 569, and the seventh driving device 5691 is fixed to the cutting plate 561 through the third mounting plate 5692. The structural design of the cutting assembly 56 realizes the cutting of the protective film, sucking the two sides of the cut protective film respectively, and expanding the hole of the tubular protective film.

[0069] Specifically, the fifth driving device 568 is a double-axis cylinder, the sixth driving device 569 is a finger clamping cylinder, and the two clamping arms 805 of the finger clamping cylinder are respectively connected and installed with the suction plate 5690. The seventh driving device 5691 is a pneumatic cutting knife.

[0070] Reference Fig.11As shown, the film sleeve assembly 57 includes an eighth driving device 571, and a ninth driving device 572 is provided on the output end of the eighth driving device 571. The eighth driving device 571 drives the ninth driving device 572 to rotate. A first bottom plate 573 is provided on the output end of the ninth driving device 572. A third linear sliding module 574 is provided on the first bottom plate 573. The third linear sliding module 574 has the same structure as the first linear sliding module 525. A first moving seat 575 and a second moving seat 576 are provided on two sliding parts of the third linear sliding module 574, respectively. The first moving seat 575 and the second moving seat 576 are arranged opposite to each other. A first supporting plate 577 and a second supporting plate 578 are provided on the first moving seat 575 and the second moving seat 576, respectively. The first supporting plate 577 and the second supporting plate 578 are arranged opposite to each other. The first bottom plate 573 has two ends provided with The fourth mounting plate 579 and the fifth mounting plate 5790 are provided with a tenth driving device 5791 and an eleventh driving device 5792 respectively, the tenth driving device 5791 and the eleventh driving device 5792 are arranged opposite to each other, the tenth driving device 5791 drives the first moving seat 575 to move linearly on the third linear sliding module 574, the eleventh driving device 5792 drives the second moving seat 576 to move linearly on the third linear sliding module 574, the first elastic member 5793 is connected between the fourth mounting plate 579 and the first moving seat 575, the second elastic member 5794 is connected between the fifth mounting plate 5790 and the second moving seat 576, the first moving seat 575 and the second moving seat 576 respectively drive the first supporting plate 577 and the second supporting plate 578 to move away from each other to open the protective film tube hole. The structural design of the film sleeve assembly 57 realizes the receiving and flipping of the protective sleeve and the protective film of the charger. A limiter 5795 is provided on one side of the upper end of the ninth driving device 572 , and a stopper 5796 used in conjunction with the limiter 5795 is provided on the same side of the lower end of the ninth driving device 572 .

[0071] Specifically, the eighth drive device 571 includes a servo motor, a coupling and a rotating shaft bearing assembly 5711, the rotating shaft bearing assembly 5711 includes a rotating shaft and a bearing, the ninth drive device 572 is a slide cylinder, the eighth drive device 571 is fixed in the membrane stand 50 through the second mounting frame 5712, the bearing is mounted in the second mounting frame 5712, the rotating shaft is passed through the bearing, one end of the rotating shaft is connected to the slide cylinder, and the servo motor of the eighth drive device 571 is connected to the rotating shaft through a coupling; the tenth drive device 5791 and the eleventh drive device 5792 are cylinders respectively, and the first elastic member 5793 and the second elastic member 5794 are tension springs respectively.

[0072] Reference Fig.12As shown, the fixing assembly 4 includes a twelfth driving device 40 and a thirteenth driving device 41, and the twelfth driving device 40 and the thirteenth driving device 41 are arranged opposite to each other; a clamping block mounting plate 42 is provided on the output end of the twelfth driving device 40, and two ends of the clamping block mounting plate 42 are respectively provided with a first clamping block 43 and a second clamping block 44 on a side facing the thirteenth driving device 41, a positioning groove 45 is provided on the first clamping block 43, and a clamping block 46 is integrally formed on the first clamping block 43 extending outwardly from a side surface facing the thirteenth driving device 41, and the first clamping block 43 and the second clamping block 44 are arranged in a mirror-symmetrical manner; a clamping plate 47 is provided on the output end of the thirteenth driving device 41.

[0073] Specifically, the twelfth driving device 40 and the thirteenth driving device 41 are both cylinders, and the twelfth driving device 40 and the thirteenth driving device 41 are fixed on two side surfaces of the chain bracket 21 through cylinder mounting plates 48 respectively.

[0074] Reference Fig.13 As shown, the film pressing assembly 6 includes a sixth mounting plate 61, a press-fitting groove 62 is provided at the upper end of the sixth mounting plate 61, a fourteenth driving device 63 is provided on the side of the sixth mounting plate 61 facing away from the chain conveyor line 2, the fourteenth driving device 63 is a cylinder, a pressing plate 64 is provided on the output end of the fourteenth driving device 63, the pressing plate 64 passes through the press-fitting groove 62, the fourteenth driving device 63 drives the pressing plate 64 to descend to press-fit the protective film sleeved on the charger housing into place, and a reference block 65 for lateral support of the charger is provided on the side of the sixth mounting plate 61 facing the chain conveyor line 2. The structural design of the film pressing assembly 6 can press-fit the end face of the protective film sleeved on the charger housing into place, which avoids the easy error in the alignment of the charger and the protective film, and ensures a good alignment effect between the charger and the protective film.

[0075] Reference Figure 14 to Figure 15As shown, the heat shrink mechanism 7 includes a mounting frame 70, and two third guide rod bearing assemblies 71 are connected to one side of the mounting frame 70. The upper ends of the guide rods of the two third guide rod bearing assemblies 71 are commonly connected to a fourth guide rod connecting plate 72. A seventh mounting plate 73 is provided below the guide rods of the two third guide rod bearing assemblies 71. The lower ends of the guide rods of the two third guide rod bearing assemblies 71 are respectively connected and installed with the seventh mounting plate 73 through a second supporting seat 74. A fifteenth driving device 75 is provided on the seventh mounting plate 73. The output end of the fifteenth driving device 75 is connected to the locking seat 751 through a guide rod and the mounting The mounting frame 70 is connected and installed, and the fifteenth driving device 75 drives the mounting frame 70 to move up and down on the guide rods of the two third guide rod bearing assemblies 71; the other side of the mounting frame 70 is connected to a heat shrink box 76, and a heat shrink channel 77 is laterally recessed at the bottom of the heat shrink box 76, and the vertical cross-section of the inner wall of the heat shrink channel 77 is U-shaped, and ventilation grooves 78 are respectively provided on the two side walls of the heat shrink channel 77, and heating tubes 79 are respectively provided on the two outer sides of the heat shrink channel 77, and a sixteenth driving device 791 is provided above the heat shrink channel 77, and a turbofan 792 is provided on the output end of the sixteenth driving device 791.

[0076] Specifically, the third guide rod bearing assembly 71 is composed of a single guide rod equipped with double bearings. The fifteenth driving device 75 is a booster cylinder, and the sixteenth driving device 791 is a motor. The sixteenth driving device 791 is installed on the heat shrink box 76.

[0077] Reference Figures 16 to 18As shown, the unloading mechanism 8 includes an eighth mounting plate 80, and one side of the eighth mounting plate 80 is connected to two fourth guide rod bearing assemblies 81 vertically arranged. In the present embodiment, the fourth guide rod bearing assembly 81 has the same structure as the first guide rod bearing assembly 511. In other embodiments, the fourth guide rod bearing assembly 81 can be provided with different quantities according to actual conditions; the upper ends of the guide rods of the two fourth guide rod bearing assemblies 81 are commonly connected to a fifth guide rod connecting plate 82, and a second bottom plate 83 is provided under the guide rods of the two fourth guide rod bearing assemblies 81, and the lower ends of the guide rods of the two fourth guide rod bearing assemblies 81 are respectively connected to the second bottom plate 83 through the third support 84. The third ball screw assembly 85 is connected to the same side of the eighth mounting plate 80. The third ball screw assembly 85 has the same structure as the first ball screw assembly 512. The screw of the third ball screw assembly 85 is rotatably connected to the fifth guide rod connecting plate 82. The upper end of the screw of the third ball screw assembly 85 is provided with a second hand wheel 86. Rotating the second hand wheel 86 drives the screw of the third ball screw assembly 85 to rotate, thereby driving the nut fixing seat 851 of the third ball screw assembly 85 and the eighth mounting plate 80 to move up and down together. The lower end of the screw of the third ball screw assembly 85 is provided with a second positioning locker 87. The second positioning locker The screw rod of the second ball screw assembly 564 is locked with 87 to prevent it from rotating so as to position the height of the eighth mounting plate 80. A seventeenth driving device 88 and a fourth linear sliding module 89 are provided on the other side of the eighth mounting plate 80. The fourth linear sliding module 89 has the same structure as the first linear sliding module 525. The output end of the seventeenth driving device 88 and the sliding part of the fourth linear sliding module 89 are commonly connected to a ninth mounting plate 801. The ninth mounting plate 801 is connected to an eighteenth driving device 802. The output end of the eighteenth driving device 802 is provided with a tenth mounting plate 803. The bottom surface of the tenth mounting plate 803 is provided with a tenth The ninth driving device 804, two clamping arms 805 are provided on the output end of the nineteenth driving device 804, the two clamping arms 805 are arranged opposite to each other, and each clamping arm 805 is respectively provided with an adjusting screw 806, the two adjusting screws 806 are on the same straight line, and rubber blocks 807 are respectively provided on the opposite end surfaces of the two adjusting screws 806, and the first buffer 808 and the second buffer 809 are respectively provided on both sides of the ninth mounting plate 801, the first buffer 808 is fixed to one end of the eighth mounting plate 80 through the tenth mounting plate 803, and the second buffer 809 is fixed to the other end of the eighth mounting plate 80 through the eleventh mounting plate 800.

[0078] Specifically, the seventeenth driving device 88 is a rodless cylinder, the eighteenth driving device 802 is a cylinder, and the nineteenth driving device 804 is a finger-type cylinder. A first photoelectric sensor 8011 and a second photoelectric sensor 8012 are respectively disposed on the upper side of the eighth mounting plate 80 .

[0079] Reference Figures 1 to 18As shown, the present invention also provides a film covering process of a fully automatic protective film covering machine for a charger shell: a charger 24 to be covered with a protective film is conveyed through a chain conveyor line 2, so that the charger 24 is conveyed between different workstations as the chain conveyor line 2 moves.

[0080] The protective film material roll is unwound by the unwinding assembly 53 of the film sleeve mechanism 5, and the tension testing assembly 54 performs a tension test on the protective film material belt (referred to as the material belt) transmitted through it, so that the unwinding assembly 53 can control the unwinding speed of the protective film material belt according to the test result of the tension testing assembly 54 to avoid excessive or insufficient tension of the protective film material belt; the tensioning assembly 55 tensions the protective film material belt in transmission to keep the tension of the protective film material belt constant. When the protective film material belt is transmitted into the cutting assembly 56, the fifth driving device 568 of the cutting assembly 56 drives the sixth driving device 569 to the protective film material belt. The protective film material strip is moved closer in direction until it enters between the two suction plates 5690, the sixth drive device 569 drives the two suction plates 5690 to close to clamp the protective film material strip, the seventh drive device 5691 (pneumatic scissors) cuts the protective film, and the two suction plates 5690 respectively suck the two side surfaces of the cut protective film, and the sixth drive device 569 drives the two suction plates 5690 to open to open the protective film tube hole, so that the conveyed material strip can be clamped, cut, sucked on the two side surfaces of the tubular protective film segment, and the protective film tube hole can be opened through the cutting assembly 56.

[0081] When the charger is transmitted through the fixed component 4, the clamp mounting plate 42 and the clamp plate 47 of the fixed component 4 are driven by the twelfth driving device 40 and the thirteenth driving device 41 respectively to approach each other to clamp and center the charger, which facilitates the subsequent film covering assembly 57 of the film covering mechanism 5 to accurately cover the tubular protective film on the outer shell of the charger. The fixed component 4 can improve the accuracy of the protective film covering the charger.

[0082] When the tenth driving device 5791 and the eleventh driving device 5792 of the film sleeve assembly 57 respectively push the first moving seat 575 and the second moving seat 576 to approach each other, the first moving seat 575 and the second moving seat 576 respectively drive the first supporting plate 577 and the second supporting plate 578 thereon to close to each other; when the ninth driving device 572 is driven by the eighth driving device 571 to rotate upward to dock with the cutting segment assembly 56, the ninth driving device 572 drives the first supporting plate 577 and the second supporting plate 578 to rise. Insert it into the protective film tube hole opened by the cut segment assembly 56; then, the tenth driving device 5791 of the sleeve film assembly 57 retreats to release the push on the first movable seat 575 and the eleventh driving device 5792 retreats to release the push on the second movable seat 576, the first elastic member 5793 and the second elastic member 5794 respectively pull the first movable seat 575 and the second movable seat 576 away from each other to open the tube hole of the tubular protective film, and the ninth driving device 572 drives the first support plate 577 and the second support plate 579 to move the first movable seat 575 and the second movable seat 576 away from each other. 78 is lowered to take away the tubular protective film segment from the cutting assembly 56, which realizes the automatic receiving of the tubular protective film segment from the cutting assembly 56; then, the ninth driving device 572 rotates downward under the drive of the eighth driving device 571, and the ninth driving device 572 extends to drive the first support plate 577 and the second support plate 578 to lower and sleeve the protective film segment on the shell of the charger that has completed the center positioning, and then, the tenth driving device 5791 and the eleventh driving device 5792 respectively push the first moving seat 575 and the second moving seat 576 to approach each other, and the first moving seat 575 and the second moving seat 576 respectively drive the first support plate 577 and the second support plate 578 to approach each other to relax the opening of the protective film tube hole on the charger, and the ninth driving device 572 retreats to drive the first support plate 577 and the second support plate 578 to rise to realize the first support plate 577 and the second support plate 578 to withdraw from the protective film tube hole, so that the protective film can be received, flipped and transmitted through the film sleeve assembly 57, and the protective film can be automatically sleeved on the charger.

[0083] When the charger with the protective film is transmitted through the film pressing assembly 6, the pressing plate 64 of the film pressing assembly 6 is lowered under the drive of the fourteenth driving device 63 to press the protective film on the charger into place, so as to ensure that the film covering the end face of the charger is well-coated; the reference block 65 supports the side of the charger to prevent the charger from tilting during the process of pressing the protective film and ensures that the protective film is aligned with the cover film of the charger, so as to avoid the problem of misalignment between the charger and the protective film or easy alignment error, which ensures that the protective film on the charger is well-aligned.

[0084] After the film pressing assembly 6 completes the film pressing on the charger, the charger is transported along the heat shrinking channel 77 of the heat shrinking mechanism 7 along the chain conveyor line 2. The sixteenth driving device 791 of the heat shrinking mechanism 7 drives the turbofan 792 to rotate to release the wind in the heat shrinking box 76 to exchange heat with the heating tube 79. The heated hot wind blows to the charger being transported in the heat shrinking channel 77 through the ventilation slot 78. After the protective film on the charger shell heats up, it shrinks and wraps the charger to complete the protective film on the charger. The protective film covers the remaining outer surfaces of the charger except the two metal terminals and the charging interface. It realizes that the protective film can be applied once to provide more comprehensive film protection for the charger to the maximum extent, so that the charger surface is more fully protected to avoid the phenomenon of easy scratching of the charger end face, and it has the advantage of high film coating efficiency. When the charger is transmitted from the heat shrinking mechanism 7 along the chain conveyor line 2, the unloading mechanism 8 clamps the charger with the protective film on the chain conveyor line 2 and transmits it to the unloading trough 9 for recycling, and the cycle continues.

[0085] Its overall design not only realizes the automatic unwinding, transmission, tension testing, tension adjustment, segment cutting and hole expansion of the protective film material strip on one device, but also realizes a series of operations such as automatic loading and transmission of the charger, centering positioning before film covering, protective film covering, film pressing and alignment, heat shrinking protective film and material unloading and recycling. It realizes that without adding corresponding end face film covering equipment to the charger, the circumference and two end faces of the charger (that is, the entire outer surface of the charger except the two metal terminals and the charging interface) can be covered with the protective film at the same time by covering the charger with the protective film once, which avoids increasing the cost of the film covering equipment, increasing the volume of the film covering equipment and increasing the number of film covering processes, so that it has the advantages of low cost, high film covering efficiency, high film covering accuracy, good film covering alignment effect and wider protection surface of the charger. It not only effectively solves the problem that the existing sheet-type film laminating machines on the market can only apply film to the circumferential surface of the charger, which makes the end face of the charger easily scratched, and that it is necessary to add end face film laminating equipment to the charger to apply film to the end face of the charger, which increases the cost of the film laminating equipment, increases the volume of the film laminating equipment, and increases the process of the film laminating equipment, it also solves the problem that the existing sheet-type film laminating machines on the market cannot combine the two processes of applying film to the circumferential surface of the charger and applying film to the end face into one even if the corresponding film laminating equipment is added to the end face of the charger, resulting in low film laminating efficiency. In addition, it also solves the problem that the sheet-type film laminating machines on the market first use a robot to apply the protective film and then use a roller mechanism to roll the protective film, which makes the alignment of the charger film easily offset.

[0086] The above embodiment is only an example of the present invention and is not intended to limit the implementation and scope of rights of the present invention. Any technical solution that is identical or equivalent to the content described in the claims of the present invention should be included in the protection scope of the present invention.

Claims

1. A fully automatic protective film machine for charger shell, including a machine platform, characterized by: It also includes a chain conveyor line, which is arranged on the machine platform and is used to convey the charger; The loading table is installed on the machine and opposite to the starting end of the chain conveyor line for conveying the charger, and is used to place the charger in front of the chain conveyor line for material preparation; A fixing component is provided on the chain conveyor line and is used to fix and limit the charger placed on the chain conveyor line before film covering; The film covering mechanism is arranged on the machine platform and located above the fixed component, and is used for conveying, cutting, expanding holes of the tubular protective film strip and covering the charger with the protective film; The film pressing assembly is arranged on one side of the chain conveyor line and is adjacent to the fixing assembly, and is used to press the protective film sleeved on the charger into place; The heat shrink mechanism is arranged above the chain conveyor line and adjacent to the film pressing assembly, and is used to heat the protective film on the charger, so that the protective film shrinks under the heat and wraps around the charger; The unloading mechanism is arranged on the machine platform and is opposite to the end of the charger conveyed by the chain conveyor line, and is used for unloading and recycling the charger that has completed the film coating; The unloading trough is arranged on the machine platform and docked with the end of the charger conveying chain conveyor line, and is used to convey the charger with the protective film applied for unloading and recycling; The control screen is installed on the machine platform and is used for human-computer interaction to control the charger cover protective film processing.

2. The fully automatic protective film covering machine for charger shell according to claim 1 is characterized by: The chain conveyor line includes a chain bracket, a chain assembly is provided on the chain bracket, a fixture for carrying a charger is provided on the chain assembly, more than one fixture is provided and two adjacent fixtures are equidistantly arranged, and the chain assembly is connected to a first driving device.

3. The fully automatic protective film covering machine for charger shell according to claim 1 is characterized in that: The film covering mechanism comprises a film covering vertical plate; A height adjustment component is provided on one side of the film set vertical plate and is used to adjust the height of the protective film set in front of the charger; The film conveying assembly is arranged on the same side of the upper end of the film sleeve vertical plate and is used for conveying the protective film; The unwinding assembly is arranged above the top of the film sleeve vertical plate and is used to unwind the tubular protective film material roll; The tension test component is arranged on one side of the film cover plate and is used to test the tension of the protective film belt conveyor; A tensioning assembly is provided on the other side of the upper end of the film sleeve vertical plate and is used to convey and tension the protective film material belt; The cutting assembly is arranged below the tensioning assembly and is used to clamp and cut the protective film strip and open the protective film tube hole; The film covering component is arranged below the tensioning component and is used to open the protective film tube hole and cover the charger with the protective film.

4. The fully automatic protective film covering machine for charger shell according to claim 3 is characterized by: The height adjustment assembly includes a first bearing seat, on which are disposed three first guide rod bearing assemblies and a first ball screw assembly, the three first guide rod bearing assemblies and the first ball screw assembly are parallel to each other, the upper ends of the guide rods of the three first guide rod bearing assemblies are commonly connected to a first guide rod connecting plate, a base is provided below the guide rods of the three first guide rod bearing assemblies, the guide rods of the three first guide rod bearing assemblies are respectively connected and installed with the base through a first support seat, the screw rod of the first ball screw assembly is rotatably connected to the first guide rod connecting plate through a screw rod bearing, the upper end of the screw rod of the first ball screw assembly is connected to a first hand wheel, a first positioning locker is provided on the guide rod of any one of the three first guide rod bearing assemblies, and the first positioning locker is provided on the first bearing seat; The unwinding assembly comprises an unwinding bracket arranged on the film sleeve vertical plate, a second driving device for actively unwinding the tubular protective film roll is arranged on the upper end of the unwinding bracket, an unwinding roller for supporting the protective film roll is connected to the output end of the second driving device, and a material tray for limiting the protective film roll is arranged on the unwinding roller; The tension testing assembly comprises an adjusting plate arranged on one side of the sleeve film vertical plate, a side surface of the upper end of the adjusting plate is provided with a first conduction roller, a second conduction roller and a third conduction roller for conveying the material belt, a tensioning roller is provided on the same side surface of the lower end of the adjusting plate, the material belt is sequentially crossed over the first conduction roller and the second conduction roller, supported over the tensioning roller and crossed over the third conduction roller, a second bearing seat is provided on the other side of the lower end of the adjusting plate, two second guide rod bearing assemblies are respectively provided on two ends of the second bearing seat, the upper ends of the guide rods of the two second guide rod bearing assemblies are commonly connected to the second guide rod connecting plate, the lower ends of the guide rods of the two second guide rod bearing assemblies are commonly connected to the third guide rod connecting plate, an adjusting slot is provided at the lower end of the adjusting plate, the adjusting slot is vertically arranged, the tensioning roller passes through the adjusting slot and is installed on the second bearing seat, the same end of the second guide rod connecting plate and the third guide rod connecting plate are commonly connected to a sensor positioning plate, the sensor positioning plate is sequentially provided with a first proximity sensor and a second proximity sensor from top to bottom, and a light shielding sheet adapted to be used with the first proximity sensor and the second proximity sensor is provided on the second bearing seat; The tensioning assembly includes a first roller, a second roller, a fourth conduction roller and a fifth conduction roller which are arranged on one side of the top of the film sleeve vertical plate. The first roller, the second roller, the fourth conduction roller and the fifth conduction roller are at the same level. An elastic paddle is provided above the fourth conduction roller, and the elastic paddle is fixed to the film sleeve vertical plate through a paddle bracket.

5. The fully automatic protective film covering machine for charger shell according to claim 3 is characterized by: The film feeding assembly includes a first mounting plate, a third driving device is provided on the first mounting plate, and an output end of the third driving device is connected to a film feeding movable plate; a fourth driving device, a first linear sliding module and a film feeding active roller are provided on one side of the film feeding movable plate; the film feeding movable plate is transmission-connected to the film sleeve vertical plate through the first linear sliding module, and the film feeding movable plate moves linearly on the film sleeve vertical plate; a pulley assembly is connected between the fourth driving device and the film feeding active roller, and the fourth driving device is transmission-connected to the film feeding active roller through the pulley assembly; a tensioning wheel for tensioning and adjusting the pulley assembly is provided on the other side of the film feeding movable plate, and the tensioning wheel is fixed to the film feeding movable plate through a tensioning wheel positioning plate; a film feeding passive roller is provided on one side of the film feeding active roller, and the film feeding passive roller is rotationally connected to the film sleeve vertical plate, and the film feeding passive roller is located on the straight line where the film feeding active roller moves.

6. The fully automatic protective film covering machine for charger shell according to claim 3 is characterized by: The cutting section assembly includes a cutting section horizontal plate arranged on the sleeve film vertical plate, the cutting section horizontal plate is provided with a cutting section vertical plate, a second linear sliding module is provided on one side of the cutting section vertical plate, a screw rod connecting seat is provided on the second linear sliding module, a second ball screw assembly is connected to the screw rod connecting seat, a knob is provided on the upper end of the screw of the second ball screw assembly, the second ball screw assembly is mounted on the cutting section vertical plate through a third bearing seat, a second mounting plate is provided on the screw rod connecting seat, a fifth driving device is provided on the second mounting plate, a sixth driving device is provided on the output end of the fifth driving device, two suction plates for sucking the two side surfaces of the protective film material strip are provided on the output end of the sixth driving device, the fifth driving device and the sixth driving device are respectively located on the other side of the cutting section vertical plate, a seventh driving device is provided above the sixth driving device, and the seventh driving device is fixed to the cutting section vertical plate through the third mounting plate.

7. The fully automatic protective film covering machine for charger shell according to claim 3 is characterized by: The film sleeve assembly includes an eighth driving device, a ninth driving device is provided on the output end of the eighth driving device, the eighth driving device drives the ninth driving device to rotate, a first bottom plate is provided on the output end of the ninth driving device, a third linear sliding module is provided on the first bottom plate, a first moving seat and a second moving seat are provided on two sliding parts of the third linear sliding module, the first moving seat and the second moving seat are arranged oppositely, a first supporting plate and a second supporting plate are provided on the first moving seat and the second moving seat, the first supporting plate and the second supporting plate are arranged oppositely, a fourth mounting plate and a fifth mounting plate are provided on both ends of the first bottom plate, a tenth driving device and an eleventh driving device are provided on the fourth mounting plate and the fifth mounting plate, respectively, the tenth driving device and the eleventh driving device are arranged oppositely, the tenth driving device drives the first moving seat to move linearly on the third linear sliding module, the eleventh driving device drives the second moving seat to move linearly on the third linear sliding module, a first elastic member is connected between the fourth mounting plate and the first moving seat, a second elastic member is connected between the fifth mounting plate and the second moving seat, the first moving seat and the second moving seat respectively drive the first supporting plate and the second supporting plate to move away from each other to open the protective film tube hole.

8. The fully automatic protective film covering machine for charger shell according to claim 1 is characterized by: The fixing assembly comprises a twelfth driving device and a thirteenth driving device, the twelfth driving device and the thirteenth driving device are arranged opposite to each other; a clamping block mounting plate is arranged on the output end of the twelfth driving device, and two ends of the clamping block mounting plate are respectively provided with a first clamping block and a second clamping block on a side facing the thirteenth driving device, a positioning groove is arranged on the first clamping block, and a clamping block is integrally formed on a side surface of the first clamping block facing the thirteenth driving device, and the first clamping block and the second clamping block are arranged in a mirror-symmetrical manner; a clamping plate is arranged on the output end of the thirteenth driving device; The film pressing assembly includes a sixth mounting plate, a pressing groove is provided on the upper end of the sixth mounting plate, a fourteenth driving device is provided on the side of the sixth mounting plate facing away from the chain conveyor line, a pressure plate is provided on the output end of the fourteenth driving device, the pressure plate passes through the pressing groove, the fourteenth driving device drives the pressure plate to descend to press the protective film on the charger housing into place, and a reference block for lateral support of the charger is provided on the side of the sixth mounting plate facing the chain conveyor line.

9. The fully automatic protective film covering machine for charger shell according to claim 1, characterized in that: The heat shrink mechanism includes a mounting frame, one side of the mounting frame is connected to two third guide rod bearing assemblies, the upper ends of the guide rods of the two third guide rod bearing assemblies are commonly connected to a fourth guide rod connecting plate, a seventh mounting plate is provided below the guide rods of the two third guide rod bearing assemblies, the lower ends of the guide rods of the two third guide rod bearing assemblies are respectively connected and installed with the seventh mounting plate through a second support seat, a fifteenth driving device is provided on the seventh mounting plate, the output end of the fifteenth driving device is connected and installed with the mounting frame, and the fifteenth driving device drives the mounting frame to move up and down on the guide rods of the two third guide rod bearing assemblies; A heat shrink box is connected to the other side of the mounting frame. A heat shrink channel is provided in a transverse concave shape at the bottom of the heat shrink box. The vertical cross-section of the inner wall of the heat shrink channel is U-shaped. Ventilation grooves are provided on both side walls of the heat shrink channel. Heating tubes are provided on both outer sides of the heat shrink channel. A sixteenth driving device is provided above the heat shrink channel. A turbofan is provided on the output end of the sixteenth driving device.

10. The fully automatic protective film covering machine for charger shell according to claim 1, characterized in that: The unloading mechanism comprises an eighth mounting plate, a side surface of the eighth mounting plate is connected to two fourth guide rod bearing assemblies which are vertically arranged, the upper ends of the guide rods of the two fourth guide rod bearing assemblies are commonly connected to the fifth guide rod connecting plate, a second base plate is provided below the guide rods of the two fourth guide rod bearing assemblies, the lower ends of the guide rods of the two fourth guide rod bearing assemblies are respectively connected and installed with the second base plate through the third support seat, a third ball screw assembly is connected to the same side surface of the eighth mounting plate, the screw rod of the third ball screw assembly is rotatably connected to the fifth guide rod connecting plate, a second hand wheel is provided at the upper end of the screw rod of the third ball screw assembly, rotating the second hand wheel drives the screw rod of the third ball screw assembly to rotate and thereby drives the eighth mounting plate to move up and down, a second positioning locker is provided at the lower end of the screw rod of the third ball screw assembly, the second positioning locker locks the screw rod of the second ball screw assembly to stop it from rotating to fix the eighth mounting plate The height of the plate is positioned, a seventeenth driving device and a fourth linear sliding module are provided on the other side of the eighth mounting plate, the output end of the seventeenth driving device and the sliding part of the fourth linear sliding module are commonly connected with a ninth mounting plate, the ninth mounting plate is connected with an eighteenth driving device, the output end of the eighteenth driving device is provided with a tenth mounting plate, a nineteenth driving device is provided on the bottom surface of the tenth mounting plate, two clamping arms are provided on the output end of the nineteenth driving device, the two clamping arms are arranged opposite to each other, each clamping arm is respectively provided with an adjusting screw, the two adjusting screws are in the same straight line, and rubber blocks are respectively provided on the opposite end surfaces of the two adjusting screws, a first buffer and a second buffer are respectively provided on both sides of the ninth mounting plate, the first buffer is fixed to one end of the eighth mounting plate through the tenth mounting plate, and the second buffer is fixed to the other end of the eighth mounting plate through the eleventh mounting plate.

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