Charger shell full-automatic protective film sleeving machine

Abstract

The charger shell full-automatic protective film sleeving machine comprises a chain conveying line arranged on a machine table, a feeding table arranged on the machine table and opposite to the starting end of the chain conveying line conveying the charger, a fixing assembly arranged on the chain conveying line, a film sleeving mechanism arranged on the machine table and above the fixing assembly, a film pressing assembly arranged on one side surface of the chain conveying line and adjacent to the fixing assembly, a heat shrinking mechanism arranged above the chain conveying line and adjacent to the film pressing assembly, and a discharging mechanism arranged on the machine table and opposite to the end of the chain conveying line conveying the charger, etc. The charger shell full-automatic protective film sleeving machine has the advantages of low cost, high film sleeving efficiency, high film sleeving precision, good film sleeving alignment effect, etc. The charger shell full-automatic protective film sleeving machine not only solves the problem that the current market piece type film pasting machine cannot past film on the end surface of the charger, which causes the end surface of the charger to be easily scratched, but also solves the problem that the current market piece type film pasting machine pasts film through the roller mechanism, which causes the pasted film and the charger to be easily misaligned.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of film wrapping machines, in particular to a full-automatic protective film wrapping machine for charger housings. BACKGROUND

[0002] With the development of the electronic industry, various electronic products need to be equipped with chargers for charging. The chargers need to be wrapped with protective films before being packaged. Traditionally, the protective films are manually peeled off from a release film and then pasted on the charger housings. The manual operation method for wrapping the chargers with protective films has the disadvantages of poor alignment accuracy, low efficiency, high labor intensity of workers, and high labor cost of enterprises. With the development of automation technology, some sheet-type film wrapping machines appear on the market. The sheet-type film wrapping machine uses a film peeling mechanism to peel off the film, a mechanical hand to pick up the protective film and paste it on the charger housing, and a roller mechanism to roll and press the protective film to tightly paste it on the surface of the charger housing. This film pasting method is prone to alignment errors between the film and the charger. Moreover, it needs to go through the processes of film peeling, conveying, mechanical hand pasting, and rolling and pressing, resulting in complicated processes, long film pasting time, low film pasting efficiency, and high film pasting cost. Moreover, it can only paste the film on the circumferential surface of the charger, but cannot paste the film on the end surface of the charger, so that the end surface of the charger lacks the protection of the protective film and is easily scratched. If the film is pasted on the end surface of the charger, corresponding film pasting equipment needs to be added for the end surface of the charger, which greatly increases the size of the film pasting equipment and the processes of the film pasting equipment, thereby increasing the cost of the film pasting equipment and the film pasting cost, and further reducing the film pasting efficiency, which is not conducive to the long-term development of industry. SUMMARY

[0003] The present application aims to overcome the shortcomings of the prior art and provide a full-automatic protective film wrapping machine for charger housings.

[0004] To solve the above technical problems, the present application adopts the following technical solutions: the full-automatic protective film wrapping machine for charger housings comprises a machine table, a chain conveying line arranged on the machine table and used for conveying chargers;

[0005] A feeding table is arranged on the machine table and opposite to the starting end of the chain conveying line conveying the chargers, and is used for placing the chargers in front of the chain conveying line for standby;

[0006] A fixing assembly is arranged on the chain conveying line and is used for fixing and limiting the chargers placed on the chain conveying line before wrapping the film;

[0007] A film wrapping mechanism is arranged on the machine table and above the fixing assembly, and is used for conveying, cutting, and expanding the tubular protective film strip and wrapping the protective film on the charger;

[0008] A film pressing assembly is arranged on one side of the chain conveying line and adjacent to the fixing assembly, and is used for pressing the protective film sleeved on the charger to a position;

[0009] A heat shrinking mechanism is arranged above the chain conveying line and adjacent to the film pressing assembly, and is used for heating the protective film sleeved on the charger, so that the protective film shrinks and wraps the charger;

[0010] A discharging mechanism is arranged on the machine table and opposite to the end of the chain conveying line conveying the charger, and is used for discharging and recycling the charger with the sleeved protective film;

[0011] A discharging groove is arranged on the machine table and is connected to the end of the chain conveying line conveying the charger, and is used for conveying the charger with the sleeved protective film for discharging and recycling;

[0012] A control screen is arranged on the machine table, and is used for human-computer interaction to control the processing of the charger sleeving the protective film.

[0013] By adopting the above technical scheme, the overall design not only realizes automatic unwinding and conveying of the tubular protective film material belt, tension testing, tension adjustment, segmenting and hole expanding on one device, but also realizes a series of operations such as automatic feeding and conveying of the charger, center positioning before sleeving, sleeving of the protective film, film pressing and alignment, heat shrinking of the protective film and discharging and recycling. It realizes that the charger can be sleeved with protective film once to complete the sleeving of the charger around and the end surface at the same time without adding corresponding end surface film pasting equipment to the charger. It has the advantages of low sleeving cost, high sleeving efficiency, high sleeving precision, good sleeving alignment effect and wider protection of the charger. It not only effectively solves the problem that the existing sheet type film pasting machine can only paste film on the circumferential surface of the charger, which causes the end surface of the charger to be easily scratched, and the charger needs to add end surface film pasting equipment to paste film on the end surface, which increases the cost, size and process of the film pasting equipment. It also solves the problem that the existing sheet type film pasting machine cannot combine the pasting of the film on the circumferential surface of the charger and the end surface into one process even if it adds corresponding film pasting equipment to the end surface, which causes low film pasting efficiency. In addition, it also solves the problem that the existing sheet type film pasting machine first pastes the protective film by using a mechanical hand and then rolls and presses the protective film by using a roller mechanism, which causes the alignment of the charger to be easily deviated.

[0014] Preferably, the chain conveying line comprises a chain bracket, the chain bracket is provided with a chain assembly, the chain assembly is provided with a jig for carrying the charger, the jig is provided with more than one and adjacent two jigs which are equidistantly arranged, and the chain assembly is connected with a first driving device.

[0015] The first driving device drives the chain assembly to move the jig to transfer the charger between different work stations.

[0016] The sleeve film mechanism preferably comprises a sleeve film vertical plate.

[0017] The height adjusting assembly is arranged on one side of the sleeve film vertical plate and used to adjust the height of the protective film before being sleeved on the charger.

[0018] The film feeding assembly is arranged on the same side of the upper end of the sleeve film vertical plate and used to feed the protective film.

[0019] The unwinding assembly is arranged above the top of the sleeve film vertical plate and used to unwind the tubular protective film roll.

[0020] The tension testing assembly is arranged on one side of the sleeve film vertical plate and used to test the tension of the protective film strip.

[0021] The tensioning assembly is arranged on the other side of the upper end of the sleeve film vertical plate and used to transfer and tension the protective film strip.

[0022] The sectioning assembly is arranged below the tensioning assembly and used to clamp, cut and open the hole of the tubular protective film.

[0023] The sleeving assembly is arranged below the tensioning assembly and used to open the hole of the tubular protective film and sleeve the protective film on the charger.

[0024] The unwinding assembly unwinds the protective film roll, the tension testing assembly tests the tension of the protective film strip, and the test result is fed back to the second driving device of the unwinding assembly. When the tension of the strip is too large, the unwinding assembly is accelerated to release the strip to relieve the tension of the strip. When the tension of the strip is too small, the unwinding assembly is decelerated to tighten the strip to increase the tension of the strip. The tensioning assembly tensions the strip in transmission to maintain the tension of the strip. The sectioning assembly clamps, cuts and tightens the two side surfaces of the tubular protective film section and opens the hole of the tubular protective film. The sleeving assembly opens the hole of the tubular protective film, transfers the protective film and automatically sleeves the protective film section on the charger. The sleeve film mechanism realizes automatic unwinding of the protective film roll, tension testing of the strip, tensioning of the strip in transmission, sectioning of the strip and sleeving of the protective film on the charger, replacing the traditional method of manually peeling the protective film from the release film. The sleeve film mechanism greatly reduces the labor intensity of workers and the labor cost of enterprises, has the advantages of high work efficiency, good sleeving effect and low sleeving cost.

[0025] As preferred, the height adjusting assembly comprises a first bearing seat, three first guide rod bearing assemblies and a first ball screw assembly are arranged on the first bearing seat, 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 connected with a first guide rod connecting plate, the lower ends of the guide rods of the three first guide rod bearing assemblies are arranged on a base, the guide rods of the three first guide rod bearing assemblies are connected and installed with the base through first support seats, 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, the guide rod of any one of the three first guide rod bearing assemblies is provided with a first positioning lock, and the first positioning lock is arranged on the upper surface of the first bearing seat.

[0026] By adopting the above technical scheme, when the first hand wheel is rotated, the screw rod of the first ball screw assembly is driven to rotate, and the first bearing seat is driven to ascend and descend, the height positioning of the front of the protective film sleeve charger is realized, and it is ensured that the protective film can be accurately sleeved on the shell of the charger.

[0027] The unwinding assembly comprises an unwinding support arranged on the film sleeving vertical plate, the upper end of the unwinding support is provided with a second driving device for actively unwinding the pipe type protective film roll, the output end of the second driving device is drivingly connected with an unwinding roller for supporting the protective film roll, and the unwinding roller is provided with a material disc for limiting the protective film roll.

[0028] The second driving device is adopted to drive the unwinding roller to rotate, the unwinding roller drives the material disc to rotate to unwind the protective film roll, and automatic active unwinding is realized.

[0029] The tension test assembly comprises an adjusting plate arranged on one side of the film sleeving vertical plate, a first conducting roller, a second conducting roller and a third conducting roller for conducting the material belt are arranged on one side of the upper end of the adjusting plate, a tensioning roller is arranged on the same side of the lower end of the adjusting plate, the material belt is sequentially wound around the first conducting roller and the second conducting roller, is supported and wound around the tensioning roller and is wound around the third conducting roller, a second bearing seat is arranged on the other side of the lower end of the adjusting plate, two second guide rod bearing assemblies are arranged on the two end portions of the second bearing seat, the upper ends of the guide rods of the two second guide rod bearing assemblies are connected with a second guide rod connecting plate, the lower ends of the guide rods of the two second guide rod bearing assemblies are connected with a third guide rod connecting plate, an adjusting groove is arranged on the lower end of the adjusting plate, the adjusting groove is vertically arranged, the tensioning roller penetrates through the adjusting groove and is installed on the second bearing seat, the same end portion of the second guide rod connecting plate and the third guide rod connecting plate is connected with a sensor positioning plate, a first proximity sensor and a second proximity sensor are sequentially arranged 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 arranged on the second bearing seat.

[0030] By adopting the technical scheme, the material belt is sequentially conveyed across the first and second conducting rollers, the supporting and tensioning roller and the third conducting roller after being drawn from the unwinding assembly. When the conveying speed of the material belt cannot keep up with the use speed of the material belt, the supporting and tensioning roller is raised, the second bearing seat and the light shielding plate are raised, the first proximity sensor sends a signal to the controller built in the second driving device of the unwinding assembly when the light shielding plate is sensed, and the second driving device of the unwinding assembly is accelerated to unwind. When the conveying speed of the material belt is faster than the use speed of the material belt, the supporting and tensioning roller is lowered, the second bearing seat and the light shielding plate are lowered synchronously, the second proximity sensor sends a signal to the controller built in the second driving device of the unwinding assembly when the light shielding plate is sensed, and the second driving device of the unwinding assembly is decelerated to unwind. The unwinding assembly is controlled to accelerate or decelerate unwinding by real-time monitoring of the tension of the material belt, so as to ensure the constancy of the conveying tension of the material belt.

[0031] The tensioning assembly comprises a first supporting roller, a second supporting roller, a fourth conducting roller and a fifth conducting roller arranged on one side of the top of the sleeve film vertical plate. The first supporting roller, the second supporting roller, the fourth conducting roller and the fifth conducting roller are on the same horizontal plane. An elastic tab is arranged above the fourth conducting roller and is fixed to the sleeve film vertical plate through a tab support.

[0032] By adopting the technical scheme, the protective film material belt sequentially crosses the first supporting roller, the second supporting roller, the fourth conducting roller and the fifth conducting roller after being unwound from the unwinding assembly. The elastic tab presses the protective film material belt between the fourth conducting roller and the fifth conducting roller to adjust the tension of the protective film material belt.

[0033] As preferred, the film feeding assembly comprises a first mounting plate, a third driving device is arranged on the first mounting plate, a film feeding moving plate is connected to the output end of the third driving device, a fourth driving device, a first linear sliding module and a film feeding driving roller are arranged on one side surface of the film feeding moving plate, the film feeding moving plate is drivingly connected to the sleeve film vertical plate through the first linear sliding module, the film feeding moving plate moves linearly on the sleeve film vertical plate, a belt pulley assembly is connected between the fourth driving device and the film feeding driving roller, the fourth driving device is drivingly connected to the film feeding driving roller through the belt pulley assembly, a tensioning wheel for tensioning adjustment of the belt pulley assembly is arranged on the other side surface of the film feeding moving plate, the tensioning wheel is fixed to the film feeding moving plate through a tensioning wheel positioning plate, a film feeding driven roller is arranged on one side of the film feeding driving roller, the film feeding driven roller is rotatably connected to the sleeve film vertical plate, and the film feeding driven roller is located on the straight line on which the film feeding driving roller moves.

[0034] The third driving device drives the film feeding moving plate to reciprocate, and then drives the film feeding driving roller to move away from or close to the film feeding driven roller. When the film feeding driving roller and the film feeding driven roller are separated, the protective film material belt passes between the film feeding driving roller and the film feeding driven roller to complete the feeding of the material belt. The film feeding driving roller and the film feeding driven roller are folded to clamp the protective film material belt, and then the transmission and positioning of the protective film material belt are completed. The fourth driving device drives the film feeding driving roller to rotate through the belt pulley assembly to feed the protective film material belt to the cutting assembly.

[0035] Preferably, the cutting assembly comprises a cutting horizontal plate arranged on the sleeve film vertical plate, and a cutting vertical plate arranged on the cutting horizontal plate. A second linear sliding module is arranged on one side of the cutting vertical plate. A screw rod connecting seat is arranged on the second linear sliding module. A second ball screw rod assembly is connected to the screw rod connecting seat. A knob is arranged on the upper end of the screw rod of the second ball screw rod assembly. The second ball screw rod assembly is installed on the cutting vertical plate through a third bearing seat. A second mounting plate is arranged on the screw rod connecting seat. A fifth driving device is arranged on the second mounting plate. A sixth driving device is arranged on the output end of the fifth driving device. Two suction plates for sucking the two side surfaces of the protective film material belt are arranged on the output end of the sixth driving device. The fifth driving device and the sixth driving device are respectively arranged on the other side of the cutting vertical plate. A seventh driving device is arranged above the sixth driving device. The seventh driving device is fixed to the cutting vertical plate through a third mounting plate.

[0036] By adopting the above technical scheme, twisting the knob drives the screw rod connecting seat to move up and down on the second linear sliding module through the second ball screw rod assembly, and then drives the fifth driving device and the sixth driving device to move up and down to adjust the height of the sixth driving device driving the suction plate clamping the protective film material belt. The fifth driving device drives the sixth driving device to close to the protective film material belt until the protective film material belt enters between the two suction plates. The sixth driving device drives the two suction plates to fold to clamp the protective film material belt. The seventh driving device cuts the protective film. The two suction plates respectively suck the two side surfaces of the cut protective film. The sixth driving device drives the two suction plates to open to pull apart the protective film tube hole, thereby solving the problem that the sheet type film sticking machine on the market cannot pull apart the protective film tube hole.

[0037] Preferably, the sleeve film assembly comprises an eighth driving device, a ninth driving device is arranged 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 arranged on the output end of the ninth driving device, a third linear sliding module is arranged on the first bottom plate, a first moving seat and a second moving seat are respectively arranged on two sliding parts of the third linear sliding module, the first moving seat and the second moving seat are oppositely arranged, a first supporting plate and a second supporting plate are respectively arranged on the first moving seat and the second moving seat, the first supporting plate and the second supporting plate are oppositely arranged, a fourth mounting plate and a fifth mounting plate are respectively arranged on the two end portions of the first bottom plate, a tenth driving device and an eleventh driving device are respectively arranged on the fourth mounting plate and the fifth mounting plate, the tenth driving device and the eleventh driving device are oppositely arranged, the tenth driving device drives the first moving seat to linearly move on the third linear sliding module, the eleventh driving device drives the second moving seat to linearly move 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. The structural design of the sleeve film assembly realizes the sleeve protection film of the circumferential surface and the two end faces of the charger at the same time, so as to realize the combination of the two processes of the sleeve film of the circumferential surface and the sleeve film of the two end faces. It solves the problem of low film pasting efficiency of the market piece type film pasting machine even after adding the device for pasting the film on the end face of the charger.

[0038] Specifically, the tenth driving device and the eleventh driving device are used to push the first moving seat and the second moving seat to approach each other, and the first moving seat and the second moving seat drive the first support plate and the second support plate to fold each other, when the eighth driving device rotates, the ninth driving device rotates upward under the driving of the eighth driving device and is connected with the cutting assembly, 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 retreat to reset to release the pushing of the first moving seat and the second moving seat, the first elastic member and the second elastic member pull the first moving seat and the second moving seat to move away from each other to open the tubular protective film tube hole, the ninth driving device drives the first support plate and the second support plate to lower to take away the tubular protective film from the cutting assembly, and the tubular protective film segment is taken from the cutting assembly; the eighth driving device rotates the ninth driving device to rotate downward, the ninth driving device extends to drive the first support plate and the second support plate to lower to put the protective film segment on the charger shell, the tenth driving device and the eleventh driving device push the first moving seat and the second moving seat to approach each other, and the first moving seat and the second moving seat drive the first support plate and the second support plate to approach each other to relax the opening of the protective film tube hole on the charger, the ninth driving device retreats to drive the first support plate and the second support plate to rise to realize the exit of the first support plate and the second support plate from the protective film tube hole, which realizes automatic taking, turning and conveying of the protective sleeve and simultaneously sleeving the protective film around the charger and the two end faces, and has the advantages of high efficiency and good effect of sleeving the protective film on the charger, thereby solving the problems that the sheet type film sticking machine on the market cannot stick the protective film on the end face of the charger and cannot simultaneously stick the protective film around the charger and the two end faces.

[0039] 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 oppositely arranged; a clamping block mounting plate is arranged on an output end of the twelfth driving device, first and second clamping blocks are arranged on two end portions of the clamping block mounting plate and face a side surface of the thirteenth driving device, a positioning groove is arranged on the first clamping block, and a clamping block is integrally formed outward from a side surface of the first clamping block facing the thirteenth driving device; and a clamping plate is arranged on an output end of the thirteenth driving device.

[0040] By using the above technical scheme, the first clamping block and the second clamping block are positioned and fixed on the clamping block mounting plate through the positioning groove, the distance between the two clamping blocks on the first clamping block and the second clamping block is the length of one side of the charger, and the twelfth driving device and the thirteenth driving device drive the clamping block mounting plate and the clamping plate to clamp and centrally position the charger, so as to facilitate accurate sleeving of the tubular protective film on the charger shell, thereby improving the accuracy of sleeving the charger with the protective film.

[0041] The film pressing assembly comprises a sixth mounting plate, an upper end of the sixth mounting plate is provided with a pressing groove, a side of the sixth mounting plate away from the chain conveying line is provided with a fourteenth driving device, an output end of the fourteenth driving device is provided with a pressing plate, the pressing plate penetrates through the pressing groove, the fourteenth driving device drives the pressing plate to descend to press the protective film sleeved on the charger to be in place, and a side of the sixth mounting plate facing the chain conveying line is provided with a reference block for laterally supporting the charger.

[0042] The fourteenth driving device of the film pressing assembly drives the pressing plate to descend to press the protective film sleeved on the charger to be in place, and the reference block supports the side surface of the charger to prevent the charger from tilting and the protective film from being misaligned with the charger during the pressing of the protective film, thereby ensuring that the protective film is well aligned with the charger, the protective film is well sleeved, and the efficiency of sleeving the protective film on the charger is high, thereby solving the problem that the sheet type film sticking machine on the market firstly sticks the protective film by using a mechanical hand and then rolls and presses the protective film by using a roller mechanism, so that the charger is prone to misalignment during film sticking.

[0043] As preferred, the heat shrinking mechanism comprises a mounting frame, two third guide rod bearing assemblies are connected to one side of the mounting frame, a fourth guide rod connecting plate is connected to upper ends of guide rods of the two third guide rod bearing assemblies, a seventh mounting plate is arranged below the guide rods of the two third guide rod bearing assemblies, the guide rods of the two third guide rod bearing assemblies are connected to the seventh mounting plate through second support seats, a fifteenth driving device is arranged on the seventh mounting plate, an output end of the fifteenth driving device is connected to 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 shrinking box is connected to the other side of the mounting frame, a heat shrinking channel is horizontally concave in the bottom of the heat shrinking box, a vertical section of an inner wall of the heat shrinking channel is in a U-shaped structure, ventilation grooves are arranged on two side walls of the heat shrinking channel, heating pipes are arranged on two outer sides of the heat shrinking channel, a sixteenth driving device is arranged above the heat shrinking channel, and a turbofan is arranged on an output end of the sixteenth driving device.

[0044] By adopting the technical scheme, the charger with the protective film is conveyed along the heat-shrinking channel by the chain conveying line, the sixth driving device drives the turbofan to rotate to diffuse the air in the heat-shrinking box and exchange heat with the heat-generating pipe, the hot air after being heated is blown to the charger conveyed in the heat-shrinking channel through the ventilation groove, the protective film on the charger shell is heated and shrinks to wrap the charger to complete the wrapping of the charger with the protective film, the protective film covers the entire outer surface of the charger except the two metal terminals and the charging interface, so that the charger is maximally protected by the film, the outer surface of the charger is more fully protected, the film wrapping efficiency of the charger is further improved, and the charger does not need to additionally increase the end face film pasting process and does not need to additionally increase the corresponding charger end face film pasting equipment, so that the problem that the current sheet type film pasting machine cannot paste the film on the end face of the charger while pasting the film on the periphery of the charger is solved.

[0045] Preferably, the feeding mechanism comprises an eighth mounting plate, one side of the eighth mounting plate is connected with two fourth guide rod bearing assemblies arranged vertically, the upper ends of the guide rods of the two fourth guide rod bearing assemblies are jointly connected with a fifth guide rod connecting plate, a second bottom plate is arranged 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 mounted with the second bottom plate through third support seats, the same side of the eighth mounting plate is connected with a third ball screw assembly, the screw rod of the third ball screw assembly is rotationally connected with the fifth guide rod connecting plate, the upper end of the screw rod of the third ball screw assembly is provided with a second hand wheel, rotating the second hand wheel drives the screw rod of the third ball screw assembly to rotate, thereby driving the eighth mounting plate to move up and down, the lower end of the screw rod of the third ball screw assembly is provided with a second positioning locker, the second positioning locker locks the screw rod of the third ball screw assembly to stop rotation, so as to position the height of the eighth mounting plate, the other side of the eighth mounting plate is provided with a seventeenth driving device and a fourth linear sliding module, the output end of the seventeenth driving device and the sliding part of the fourth linear sliding module are jointly 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, the bottom surface of the tenth mounting plate is provided with a nineteenth driving device, the output end of the nineteenth driving device is provided with two clamping arms, the two clamping arms are oppositely arranged, each clamping arm is respectively provided with an adjusting screw, the two adjusting screws are on the same straight line, the opposite end surfaces of the two adjusting screws are respectively provided with rubber blocks, the two sides of the ninth mounting plate are respectively provided with a first buffer and a second buffer, the first buffer is fixed on one end of the eighth mounting plate through the tenth mounting plate, and the second buffer is fixed on the other end of the eighth mounting plate through an eleventh mounting plate.

[0046] By adopting the technical scheme, the height of the charger gripped by the nineteenth driving device is adjusted by the second ball screw assembly when the second hand wheel is rotated, so that chargers of different sizes can be gripped, and the universality is high; the nineteenth driving device drives two clamping arms to approach each other, and then drives two rubber blocks to approach each other to clamp the charger with the protective film, the seventeenth driving device and the eighteenth driving device cooperate with each other to vertically position the nineteenth driving device and the charger gripped by the nineteenth driving device in two-dimensional space, so as to realize the clamping of the charger with the protective film from the chain conveying line and the conveying of the charger to the discharge chute for recycling, the two rubber blocks have a buffering protection effect when clamping the charger, so as to avoid clamping damage to the charger, the automatic discharging is realized, and the charger clamping precision is high, the charger discharging and recycling efficiency is high, and the charger discharging cost is low.

[0047] As preferred, the control screen is built-in or internally mounted with a controller or control system for signal control of the film covering mechanism, the chain conveying line, the fixing assembly, the film pressing assembly, the heat shrinking mechanism and the discharging mechanism, etc., the controller is a PLC programmable logic controller, and the PLC programmable logic controller can adopt a programmable logic controller with a model of XDS-40T-D, but is not limited thereto.

[0048] Compared with the prior art, the present application has the following advantages:

[0049] 1. The overall design not only realizes automatic unwinding, conveying, tension testing, tension adjustment, cutting and expanding of the tubular protective film material belt on one device, but also realizes a series of operations such as automatic feeding, conveying, centering, film covering, film pressing and aligning, heat shrinking and discharging of the charger, which realizes the covering of the charger with a protective film without the need for additional end face film sticking equipment, avoids the increase of film sticking equipment cost, the increase of film sticking equipment size and the increase of film sticking process, and has the advantages of low cost, high film covering efficiency, high film covering precision, good film covering alignment effect and wide protection of the charger.

[0050] 2、Its through the structure of the fixed component, the sleeve film mechanism and the heat shrinkage mechanism are designed respectively, so that the charger before the sleeve protection film can be positioned in the middle through the fixed component, to ensure the high precision of the subsequent sleeve protection film and the good effect of the sleeve protection film; the sleeve film mechanism realizes the clamping, cutting and suction of the both sides of the tubular protection film segment of the conveyed material belt, and the opening of the protection film tube hole through the cutting component of the sleeve film mechanism; the sleeve film component of the sleeve film mechanism realizes the taking of the protection film from the cutting component, the overturning transmission of the protection film and the sleeving of the protection film on the charger shell, so that the sleeve film mechanism realizes the sleeve film of the charger on the circumference and the two end faces after the sleeve protection film is completed, that is, the charger sleeve film process and the end face sleeve film process are combined into one, so that the sleeve film efficiency of the charger is greatly improved; and the heat shrinkage mechanism realizes the wrapping of the protection film on the circumference surface of the charger and all surfaces of the two end faces except the two metal terminals and the charging interface, that is, the charger circumference wrapping protection film process and the end face wrapping protection film process are combined into one, so that the film wrapping efficiency of the charger is greatly improved, which not only effectively solves the problem that the current market piece type film sticking machine can only stick film on the circumference surface of the charger, which easily scratches the end face of the charger, and the charger needs to be additionally provided with end face film sticking equipment to stick film on the end face of the charger, which increases the cost, size and process of the film sticking equipment, but also solves the problem that the current market piece type film sticking machine cannot combine the two processes of the charger circumference film sticking and the end face film sticking into one, which leads to low film sticking efficiency.

[0051] 3、Its through the structure of the fixed component, the sleeve film mechanism and the heat shrinkage mechanism are designed respectively, so that the charger before the sleeve protection film can be positioned in the middle through the fixed component, to ensure the high precision of the subsequent sleeve protection film and the good effect of the sleeve protection film; the sleeve film mechanism realizes the clamping, cutting and suction of the both sides of the tubular protection film segment of the conveyed material belt, and the opening of the protection film tube hole through the cutting component of the sleeve film mechanism; the sleeve film component of the sleeve film mechanism realizes the taking of the protection film from the cutting component, the overturning transmission of the protection film and the sleeving of the protection film on the charger shell, so that the sleeve film mechanism realizes the sleeve film of the charger on the circumference and the two end faces after the sleeve protection film is completed, that is, the charger sleeve film process and the end face sleeve film process are combined into one, so that the sleeve film efficiency of the charger is greatly improved; and the heat shrinkage mechanism realizes the wrapping of the protection film on the circumference surface of the charger and all surfaces of the two end faces except the two metal terminals and the charging interface, that is, the charger circumference wrapping protection film process and the end face wrapping protection film process are combined into one, so that the film wrapping efficiency of the charger is greatly improved, which not only effectively solves the problem that the current market piece type film sticking machine can only stick film on the circumference surface of the charger, which easily scratches the end face of the charger, and the charger needs to be additionally provided with end face film sticking equipment to stick film on the end face of the charger, which increases the cost, size and process of the film sticking equipment, but also solves the problem that the current market piece type film sticking machine cannot combine the two processes of the charger circumference film sticking and the end face film sticking into one, which leads to low film sticking efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0052] In order to facilitate the description, the present application is described in detail by the preferred embodiments and the accompanying drawings.

[0053] Figure 1 It is a perspective view of the charger shell full-automatic sleeve protection film machine of the present application.

[0054] Figure 2 It is a perspective view of the chain conveyor line of the charger shell full-automatic sleeve protection film machine of the present application.

[0055] Figure 3 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application.

[0056] Figure 4 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application. Figure 3 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application.

[0057] Figure 5 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application.

[0058] Figure 6 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application. Figure 5 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application.

[0059] Figure 7 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application.

[0060] Figure 8 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application. Figure 7 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application.

[0061] Figure 9 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application.

[0062] Figure 10 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application. Figure 9 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application.

[0063] Figure 11 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application.

[0064] Figure 12 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application.

[0065] Figure 13 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application.

[0066] Figure 14 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application.

[0067] Figure 15 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application. Figure 14 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application.

[0068] Figure 16 is a perspective view of a film covering mechanism of the full-automatic protective film covering machine for the charger shell of the present application.

[0069] Figure 17 It is a rear view of the blanking mechanism of the full-automatic protective film sleeving machine for the charger shell of the application.

[0070] Figure 18 It is a rear view of the blanking mechanism of the full-automatic protective film sleeving machine for the charger shell of the application. Figure 16 Different direction perspective view. DETAILED DESCRIPTION

[0071] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present application can be more thoroughly and completely understood.

[0072] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application.

[0073] Referring to Figure 1 As shown in the drawings, the full-automatic protective film sleeving machine for the charger shell of the application comprises a machine table 1, a chain conveying line 2 arranged on the machine table 1, a feeding table 3 arranged on the machine table 1 and opposite to the starting end of the chain conveying line 2 conveying the charger, a fixing assembly 4 arranged on the chain conveying line 2, a film sleeving mechanism 5 arranged above the fixing assembly 4 on the machine table 1, a film pressing assembly 6 arranged on one side surface of the chain conveying line 2 and adjacent to the fixing assembly 4, a heat shrinking mechanism 7 arranged above the chain conveying line 2 and adjacent to the film pressing assembly 6, a blanking mechanism 8 arranged on the machine table 1 and opposite to the end of the chain conveying line 2 conveying the charger, a blanking groove 9 arranged on the machine table 1 and butt-jointed with the end of the chain conveying line 2 conveying the charger, and a control screen 10 arranged on the machine table 1, wherein the chain conveying line 2 is used for conveying the charger.

[0074] Specifically, the feeding table 3 is used for placing the charger in front of the chain conveying line 2 for standby; the fixing assembly 4 is used for fixing and limiting the charger placed on the chain conveying line 2 before sleeving the film; the film sleeving mechanism 5 is used for conveying, cutting, expanding the hole of the tubular protective film material belt and sleeving the protective film on the charger; the film pressing assembly 6 is used for pressing the protective film sleeved on the charger to the right position; the heat shrinking mechanism 7 is used for heating the protective film sleeved on the charger so that the protective film is automatically wrapped on the charger after shrinking by heating; the blanking mechanism 8 is used for blanking the charger with the sleeved film; the blanking groove 9 is used for conveying the charger with the sleeved film for blanking and recycling; and the control screen 10 is used for man-machine interaction to control the processing of the charger with the sleeved film.

[0075] Referring to Figure 2As shown, the chain conveying line 2 comprises a chain support 21, a chain assembly 22 is arranged on the chain support 21, a jig 23 for carrying a charger 24 is arranged on the chain assembly 22, the jig 23 is provided with more than one and adjacent two jigs 23 which are arranged equidistantly, and the chain assembly 22 is connected with a first driving device 25.

[0076] Specifically, the chain assembly 22 is provided with two sprockets, and a chain is connected between the two sprockets. The first driving device 25 comprises a servo motor and a coupling. The servo motor of the first driving device 25 is drivingly connected with one of the sprockets through the coupling, and the servo motor of the first driving device 25 is fixed on the chain support 21 through a first mounting frame 26.

[0077] Referring to Figure 3 As shown, the film covering mechanism 5 comprises a film covering vertical plate 50, a height adjusting assembly 51 arranged on one side surface of the film covering vertical plate 50 and used for adjusting the height of the protective film before covering the charger, a film feeding assembly 52 arranged on the same side surface of the upper end of the film covering vertical plate 50 and used for conveying the protective film, a unwinding assembly 53 arranged above the top of the film covering vertical plate 50 and used for unwinding the tubular protective film roll, a tension testing assembly 54 arranged on one side of the film covering vertical plate 50 and used for testing the tension of the protective film strip conveying, a tensioning assembly 55 arranged on the other side surface of the upper end of the film covering vertical plate 50 and used for conveying and tensioning the protective film strip, a sectioning assembly 56 arranged below the tensioning assembly 55 and used for clamping, cutting and pulling apart the protective film tube hole of the protective film strip, and a film covering assembly 57 arranged below the tensioning assembly 55 and used for opening the protective film tube hole and covering the protective film on the charger. The structural design of the film covering mechanism 5 realizes the automatic unwinding of the protective film roll, the tension testing of the strip, the conveying and tensioning of the strip, the sectioning of the strip and the covering of the protective film on the entire charger (including the four sides and the two end surfaces of the charger), and has the advantages of high film covering efficiency, high film covering precision and good film covering effect.

[0078] Referring to Figure 4As shown, the height adjusting assembly 51 comprises a first bearing seat 510, three first guide rod bearing assemblies 511 and a first ball screw assembly 512 are arranged on the first bearing seat 510, the three first guide rod bearing assemblies 511 and the first ball screw assembly 512 are parallel to each other, in the embodiment, each first guide rod bearing assembly 511 comprises a guide rod and a bearing, the guide rod is connected and installed with the first bearing seat 510 through the bearing; the first ball screw assembly 512 comprises a screw rod and a nut fixing seat, the screw rod is rotationally connected with the nut fixing seat; in other embodiments, the first guide rod bearing assembly 511 can also comprise a guide rod and a guide sleeve, and the first guide rod bearing assembly 511 and the first ball screw assembly 512 can be provided in different numbers according to actual conditions, and therefore are not limited in this way; the upper ends of the guide rods of the three first guide rod bearing assemblies 511 are jointly connected with a first guide rod connecting plate 513, the lower sides of the guide rods of the three first guide rod bearing assemblies 511 are provided with a base 514, the guide rods of the three first guide rod bearing assemblies 511 are respectively connected and installed with the base 514 through first support seats 515, the screw rod of the first ball screw assembly 512 is rotationally connected with the first guide rod connecting plate 513 through a screw rod bearing 516, the upper end of the screw rod of the first ball screw assembly 512 is connected with a first hand wheel 517, 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 upper side of the first bearing seat 510. The structural design of the height adjusting assembly 51 can realize height adjustment and positioning of the protective film sleeve before the charger, so as to ensure that the protective film can be accurately sleeved on the shell of the charger and accurately sleeve the protective film suitable for different specifications of chargers.

[0079] Referring to Figure 3 and Figure 4 As shown, the unwinding assembly 53 comprises an unwinding support 531 arranged on the sleeve film vertical plate 50, the upper end of the unwinding support 531 is provided with a second driving device 532 for actively unwinding a tubular protective film roll, the output end of the second driving device 532 is drivingly connected with an unwinding roller 533 for supporting the protective film roll, and the unwinding roller 533 is provided with a roll disc 534 for limiting the protective film roll.

[0080] 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 comprises a servo motor and a shaft coupling. The servo motor of the second driving device 532 is fixed on the unwinding support 531 through a connecting rod 535, the servo motor of the second driving device 532 is drivingly connected with the unwinding roller 533 through the shaft coupling, the roll disc 534 is installed on the unwinding roller 533, and the protective film roll is installed on the roll disc 534.

[0081] Referring to Figure 5 and Figure 6As shown, the tension test assembly 54 includes an adjusting plate 541 arranged on one side of the sleeve film vertical plate 50, and a first transmission roller 542, a second transmission roller 543 and a third transmission roller 544 are arranged on one side of the upper end of the adjusting plate 541, and a tension roller 545 is arranged on the same side of the lower end of the adjusting plate 541, the material belt is sequentially wound around the first transmission roller 542 and the second transmission roller 543, supported around the tension roller 545 and wound around the third transmission roller 544, the other side of the lower end of the adjusting plate 541 is provided with a second bearing seat 546, two second guide rod bearing assemblies 547 are arranged on the two ends of the second bearing seat 546 respectively, in the embodiment, the second guide rod bearing assemblies 547 are the same as the first guide rod bearing assemblies 511, in other embodiments, the second guide rod bearing assemblies 547 can be arranged in different numbers according to actual conditions, and are not limited to this; the upper ends of the guide rods of the two second guide rod bearing assemblies 547 are connected with a second guide rod connecting plate 548, the lower ends of the guide rods of the two second guide rod bearing assemblies 547 are connected with a third guide rod connecting plate 549, the lower end of the adjusting plate 541 is provided with an adjusting groove 540, the adjusting groove 540 is arranged vertically, the tension roller 545 penetrates through the adjusting groove 540 and is arranged on the second bearing seat 546, the same end of the second guide rod connecting plate 548 and the third guide rod connecting plate 549 is connected with a sensor positioning plate 5490, the sensor positioning plate 5490 is sequentially 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 light barrier 5493 adapted to be used with the first proximity sensor 5491 and the second proximity sensor 5492.

[0082] Referring to Figure 3 As shown, the tension assembly 55 includes a first supporting roller 551, a second supporting roller 552, a fourth transmission roller 553 and a fifth transmission roller 554 arranged on one side of the top of the sleeve film vertical plate 50, the first supporting roller 551, the second supporting roller 552, the fourth transmission roller 553 and the fifth transmission roller 554 are arranged on the same horizontal plane, an elastic tab 555 is arranged above the fourth transmission roller 553, and the elastic tab 555 is fixed on the sleeve film vertical plate 50 through a tab support 556.

[0083] Referring to Figure 7 and Figure 8As shown, the film feeding assembly 52 comprises a first mounting plate 521, the third driving device 522 is arranged on the first mounting plate 521, the output end of the third driving device 522 is connected with a film feeding moving plate 523, the fourth driving device 524, the first linear sliding module 525 and the film feeding driving roller 526 are arranged on one side of the film feeding moving plate 523, the film feeding moving plate 523 is drivingly connected with 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, the belt pulley assembly 527 is connected between the fourth driving device 524 and the film feeding driving roller 526, the fourth driving device 524 is drivingly connected with the film feeding driving roller 526 through the belt pulley assembly 527, the other side of the film feeding moving plate 523 is provided with the tension pulley 528 for tensioning and adjusting the belt pulley assembly 527, the tension pulley 528 is fixed on the film feeding moving plate 523 through the tension pulley positioning plate 529, one side of the film feeding driving roller 526 is provided with the film feeding driven roller 520, the film feeding driven roller 520 is rotatably connected with the film sleeve vertical plate 50, and the film feeding driven roller 520 is located on the straight line where the film feeding driving roller 526 moves.

[0084] In the embodiment, the first linear sliding module 525 comprises a slide rail and a slide block (i.e. a sliding part), the slide block is arranged on the slide rail, and the slide block can be provided with more than one according to the needs of use; the third driving device 522 is a pneumatic cylinder, and the fourth driving device 524 is a servo motor. The belt pulley assembly 527 comprises two synchronous wheels or belt pulleys and a synchronous belt or belt connecting the two synchronous wheels, in other embodiments, the belt pulley assembly 527 can also be provided as a gear and rack module, and is not limited to this.

[0085] Referring to Figure 9 and Figure 10As shown, the cutting assembly 56 includes a cutting horizontal plate 560 provided on the sleeve film vertical plate 50, and the cutting horizontal plate 560 is provided with a cutting vertical plate 561, and the cutting vertical plate 561 is provided with a second linear sliding module 562 on one side, and the second linear sliding module 562 is the same as the first linear sliding module 525; the second linear sliding module 562 is provided with a screw rod connecting seat 563, the screw rod connecting seat 563 is connected with a second ball screw assembly 564, and the second ball screw assembly 564 is the same as the first ball screw assembly 512; the upper end of the screw rod of the second ball screw assembly 564 is provided with a knob 565, the second ball screw assembly 564 is installed on the cutting vertical plate 561 through a third bearing seat 566, the screw rod 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 side faces of the protective film material belt, the fifth driving device 568 and the sixth driving device 569 are respectively located on the other side of the cutting vertical plate 561, the seventh driving device 5691 is provided above the sixth driving device 569, and the seventh driving device 5691 is fixed on the cutting vertical plate 561 through a third mounting plate 5692. The structure design of the cutting assembly 56 realizes the cutting of the protective film, the suction of the two side faces of the cut protective film and the expansion of the hole of the tubular protective film tube.

[0086] Specifically, the fifth driving device 568 is a double-shaft air cylinder, the sixth driving device 569 is a finger air cylinder, and the two clamping arms 805 of the finger air cylinder are respectively connected and installed with the suction plates 5690. The seventh driving device 5691 is a pneumatic cutting knife.

[0087] Referring to Figure 11As shown, the sleeve film assembly 57 comprises an eighth driving device 571, a ninth driving device 572 is arranged 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 arranged on the output end of the ninth driving device 572, a third linear sliding module 574 is arranged on the first bottom plate 573, the third linear sliding module 574 is the same in structure as the first linear sliding module 525, a first moving seat 575 and a second moving seat 576 are respectively arranged on the two sliding parts of the third linear sliding module 574, the first moving seat 575 and the second moving seat 576 are oppositely arranged, a first supporting plate 577 and a second supporting plate 578 are respectively arranged on the first moving seat 575 and the second moving seat 576, the first supporting plate 577 and the second supporting plate 578 are oppositely arranged, a fourth mounting plate 579 and a fifth mounting plate 5790 are respectively arranged on the both end portions of the first bottom plate 573, a tenth driving device 5791 and an eleventh driving device 5792 are respectively arranged on the fourth mounting plate 579 and the fifth mounting plate 5790, the tenth driving device 5791 and the eleventh driving device 5792 are oppositely arranged, the tenth driving device 5791 drives the first moving seat 575 to linearly move on the third linear sliding module 574, the eleventh driving device 5792 drives the second moving seat 576 to linearly move on the third linear sliding module 574, a first elastic member 5793 is connected between the fourth mounting plate 579 and the first moving seat 575, a 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 support and open the protective film tube hole. The structural design of the sleeve film assembly 57 realizes the sleeve taking, overturning and conveying and the sleeve protection film of the charger. One side of the upper end of the ninth driving device 572 is provided with a limit stop 5795, and the same side of the lower end of the ninth driving device 572 is provided with a stop block 5796 which cooperates with the limit stop 5795.

[0088] Specifically, the eighth driving device 571 comprises a servo motor, a shaft coupling and a rotating shaft bearing assembly 5711, the rotating shaft bearing assembly 5711 comprises a rotating shaft and a bearing, the ninth driving device 572 is a sliding table air cylinder, the eighth driving device 571 is fixed in the sleeve film vertical plate 50 through a second mounting frame 5712, the bearing is mounted in the second mounting frame 5712, the rotating shaft is arranged in the bearing, one end of the rotating shaft is connected with the sliding table air cylinder, and the servo motor of the eighth driving device 571 is in transmission connection with the rotating shaft through the shaft coupling; the tenth driving device 5791 and the eleventh driving device 5792 are air cylinders respectively, and the first elastic member 5793 and the second elastic member 5794 are tension springs respectively.

[0089] Referring to Figure 12As shown, the fixing assembly 4 comprises a twelfth driving device 40 and a thirteenth driving device 41 which are oppositely arranged; the output end of the twelfth driving device 40 is provided with a clamping block mounting plate 42, the two end portions of the clamping block mounting plate 42 are respectively provided with a first clamping block 43 and a second clamping block 44 towards the side surface of the thirteenth driving device 41, the first clamping block 43 is provided with a positioning groove 45, the side surface of the first clamping block 43 towards the thirteenth driving device 41 is integrally formed with a clamping block 46 which extends outward, the first clamping block 43 and the second clamping block 44 are mirror-symmetrically arranged; the output end of the thirteenth driving device 41 is provided with a clamping plate 47.

[0090] Specifically, the twelfth driving device 40 and the thirteenth driving device 41 are both air cylinders, and the twelfth driving device 40 and the thirteenth driving device 41 are respectively fixed on the two side surfaces of the chain bracket 21 through air cylinder mounting plates 48.

[0091] Referring to Figure 13 As shown, the film pressing assembly 6 comprises a sixth mounting plate 61, the upper end of the sixth mounting plate 61 is provided with a pressing groove 62, the side of the sixth mounting plate 61 away from the chain conveying line 2 is provided with a fourteenth driving device 63, the fourteenth driving device 63 is an air cylinder, the output end of the fourteenth driving device 63 is provided with a pressing plate 64, the pressing plate 64 penetrates through the pressing groove 62, the fourteenth driving device 63 drives the pressing plate 64 to descend to press the protective film sleeved on the charger shell into position, the side of the sixth mounting plate 61 towards the chain conveying line 2 is provided with a reference block 65 which laterally supports the charger. The structural design of the film pressing assembly 6 can press the end surface of the protective film sleeved on the charger shell into position, which avoids the error in aligning the charger with the protective film, and ensures the good alignment effect of the charger and the protective film.

[0092] Referring to Figure 14 to Figure 15As shown, the heat shrink mechanism 7 comprises a mounting frame 70, one side of the mounting frame 70 is connected with two third guide rod bearing assemblies 71, the upper ends of the guide rods of the two third guide rod bearing assemblies 71 are commonly connected with a fourth guide rod connecting plate 72, the lower sides of the guide rods of the two third guide rod bearing assemblies 71 are provided with a seventh mounting plate 73, 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 second support seats 74, the upper surface of the seventh mounting plate 73 is provided with a fifteenth driving device 75, the output end of the fifteenth driving device 75 is connected and installed with the mounting frame 70 through a guide rod connecting locking seat 751, 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 with a heat shrink box 76, the bottom of the heat shrink box 76 is horizontally and inwardly recessed to form a heat shrink passage 77, the vertical section of the inner wall of the heat shrink passage 77 is in U-shaped arrangement, ventilation grooves 78 are respectively arranged on the two side walls of the heat shrink passage 77, heating pipes 79 are respectively arranged on the two outer sides of the heat shrink passage 77, a sixteenth driving device 791 is arranged above the heat shrink passage 77, a turbofan 792 is arranged on the output end of the sixteenth driving device 791.

[0093] Specifically, the third guide rod bearing assembly 71 is composed of a single guide rod with double bearings. The fifteenth driving device 75 is a booster cylinder, and the sixteenth driving device 791 is a motor, which is installed on the heat shrink box 76.

[0094] Referring to Figure 16 to Figure 18As shown, the blanking mechanism 8 comprises an eighth mounting plate 80, one side of the eighth mounting plate 80 is connected with two fourth guide rod bearing assemblies 81 arranged vertically, in this embodiment, the fourth guide rod bearing assemblies 81 are the same in structure as the first guide rod bearing assembly 511, in other embodiments, the fourth guide rod bearing assemblies 81 can be provided in different numbers according to actual conditions; the upper ends of the guide rods of the two fourth guide rod bearing assemblies 81 are commonly connected with a fifth guide rod connecting plate 82, the lower sides of the guide rods of the two fourth guide rod bearing assemblies 81 are provided with a second bottom plate 83, the lower ends of the guide rods of the two fourth guide rod bearing assemblies 81 are respectively connected and installed with the second bottom plate 83 through third supports 84, the same side of the eighth mounting plate 80 is connected with a third ball screw assembly 85, the third ball screw assembly 85 is the same in structure as the first ball screw assembly 512, the screw rod of the third ball screw assembly 85 is rotationally connected with the fifth guide rod connecting plate 82, the upper end of the screw rod of the third ball screw assembly 85 is provided with a second hand wheel 86, rotating the second hand wheel 86 drives the screw rod of the third ball screw assembly 85 to rotate, and further drives the screw 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 rod of the third ball screw assembly 85 is provided with a second positioning locker 87, the second positioning locker 87 locks the screw rod of the third ball screw assembly 85 to stop its rotation so as to position the height of the eighth mounting plate 80, the other side of the eighth mounting plate 80 is provided with a seventeenth driving device 88 and a fourth linear sliding module 89, the fourth linear sliding module 89 is the same in 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 with a ninth mounting plate 801, the ninth mounting plate 801 is connected with 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 nineteenth driving device 804, the output end of the nineteenth driving device 804 is provided with two clamping arms 805, the two clamping arms 805 are oppositely arranged, each clamping arm 805 is respectively provided with an adjusting screw 806, the two adjusting screws 806 are on the same straight line, the opposite end surfaces of the two adjusting screws 806 are respectively provided with rubber blocks 807, the two sides of the ninth mounting plate 801 are respectively provided with a first buffer 808 and a second buffer 809, the first buffer 808 is fixed on one end of the eighth mounting plate 80 through the tenth mounting plate 803, the second buffer 809 is fixed on the other end of the eighth mounting plate 80 through an eleventh mounting plate 800.

[0095] 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 thumb cylinder. The upper side of the eighth mounting plate 80 is respectively provided with a first photoelectric sensor 8011 and a second photoelectric sensor 8012.

[0096] Referring to Figure 1 to Figure 18As shown, the application also provides a full-automatic protective film wrapping process of a charger housing full-automatic protective film wrapping machine. The charger 24 to be wrapped with a protective film is conveyed by the chain conveying line 2, so that the charger 24 is conveyed between different stations along with the movement of the chain conveying line 2. The protective film material roll is unwound by the unwinding assembly 53 of the film wrapping mechanism 5. The tension test assembly 54 tests the tension of the protective film material belt (referred to as the material belt) conveyed therethrough, 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 test assembly 54, to avoid that the tension of the protective film material belt is too large or too small. The tension assembly 55 tensions the protective film material belt in conveying to keep the tension of the protective film material belt constant. When the protective film material belt is conveyed into the cutting assembly 56, the fifth driving device 568 of the cutting assembly 56 drives the sixth driving device 569 to move towards the direction of the protective film material belt until the protective film material belt enters between the two suction plates 5690. The sixth driving device 569 drives the two suction plates 5690 to close to clamp the protective film material belt. The seventh driving device 5691 (pneumatic scissors) cuts the protective film. The two suction plates 5690 respectively suction the two side surfaces of the cut protective film. The sixth driving device 569 drives the two suction plates 5690 to open to pull apart the protective film tube hole, so that the cutting assembly 56 can clamp, cut, suction the two side surfaces of the tubular protective film segment and pull apart the protective film tube hole of the conveyed material belt.

[0097] When the charger is conveyed through the fixing assembly 4, the clamping block mounting plate 42 and the clamping plate 47 of the fixing assembly 4 respectively approach each other under the driving of the twelfth driving device 40 and the thirteenth driving device 41 to clamp and centrally position the charger, which facilitates the film wrapping assembly 57 of the film wrapping mechanism 5 to accurately wrap the tubular protective film on the housing of the charger. The fixing assembly 4 can improve the accuracy of wrapping the charger with the protective film.

[0098] When the tenth driving device 5791 and the eleventh driving device 5792 of the sleeving film assembly 57 push the first moving seat 575 and the second moving seat 576 to approach each other respectively, the first moving seat 575 and the second moving seat 576 drive the first support plate 577 and the second support plate 578 to fold towards each other respectively; when the ninth driving device 572 is driven by the eighth driving device 571 to rotate upwards to be in butt joint with the sectioning assembly 56, the ninth driving device 572 drives the first support plate 577 and the second support plate 578 to rise to be inserted into the protective film tube hole which is pulled open by the sectioning assembly 56; then, the tenth driving device 5791 of the sleeving film assembly 57 retreats to reset to release the pushing of the first moving seat 575 and the eleventh driving device 5792 retreats to reset to release the pushing of the second moving seat 576, the first elastic member 5793 and the second elastic member 5794 pull the first moving seat 575 and the second moving seat 576 away from each other respectively to expand the tubular protective film tube hole, and the ninth driving device 572 drives the first support plate 577 and the second support plate 578 to lower to take away the tubular protective film section from the sectioning assembly 56, which realizes automatic taking of the tubular protective film section from the sectioning assembly 56; then, the ninth driving device 572 rotates downwards under the drive of the eighth driving device 571, the ninth driving device 572 extends to drive the first support plate 577 and the second support plate 578 to lower to sleeve the protective film section on the shell of the charger which is centrally positioned, then the tenth driving device 5791 and the eleventh driving device 5792 push the first moving seat 575 and the second moving seat 576 to approach each other respectively, the first moving seat 575 and the second moving seat 576 drive the first support plate 577 and the second support plate 578 to approach each other to relax the expansion 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 exit of the first support plate 577 and the second support plate 578 from the protective film tube hole, so that the sleeving film assembly 57 realizes taking, overturning and conveying of the protective film and automatic sleeving of the protective film on the charger.

[0099] When the charger sleeved with the upper protective film is conveyed 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 sleeved on the charger to be in place, so as to ensure the good sleeving effect of the charger end face; the reference block 65 supports the side face of the charger to prevent the charger from tilting in the process of pressing the protective film and to ensure the alignment of the protective film and the charger, so as to avoid the misalignment or easy alignment error of the charger and the protective film, which ensures the good alignment effect of the charger sleeved with the protective film.

[0100] When the film pressing assembly 6 finishes pressing the protective film on the charger, the charger is conveyed along the heat shrinking passage 77 of the heat shrinking mechanism 7 by the chain conveying line 2, the sixteenth driving device 791 of the heat shrinking mechanism 7 drives the turbofan 792 to rotate to disperse the air in the heat shrinking box 76 to exchange heat with the heating pipe 79, the hot air after being heated is blown to the charger conveying in the heat shrinking passage 77 through the ventilation groove 78, the protective film on the charger shell is heated and shrinks to wrap the charger to finish wrapping the charger with the protective film, the protective film covers the remaining outer surface of the charger except the two metal terminals and the charging interface, which realizes that the charger can be more fully wrapped with the protective film at one time, the outer surface of the charger is more fully protected to avoid the phenomenon that the charger end face is easily scratched, and the wrapping efficiency is high.

[0101] The overall design not only realizes that the protective film material belt can be automatically unwound, conveyed, tension tested, tension adjusted, cut and expanded on one device, but also realizes that the charger can be automatically fed, conveyed, centrally positioned before wrapping, wrapped with the protective film, pressed and aligned, heat shrunk and recovered, etc., which realizes that the charger can be wrapped with the protective film at one time to wrap the circumference and the two end faces (i.e. the entire outer surface of the charger except the two metal terminals and the charging interface) of the charger at the same time without increasing the corresponding end face film sticking device, which avoids increasing the film sticking device cost, the film sticking device size and the film sticking process, has the advantages of low cost, high wrapping efficiency, high wrapping precision, good wrapping alignment effect and wider protection of the charger, effectively solves the problems that the current sheet type film sticking machine can only stick the film on the circumference of the charger, the end face of the charger is easily scratched, and the end face film sticking device needs to be additionally increased to stick the film on the end face of the charger, which increases the film sticking device cost, the film sticking device size and the film sticking process, solves the problem that the current sheet type film sticking machine cannot combine the two processes of wrapping the film on the circumference and the end face of the charger even if the corresponding film sticking device is increased, and solves the problem that the charger wrapping alignment is easily deviated when the mechanical hand is used to stick the protective film and the roller mechanism is used to roll and press the protective film.

[0102] The above embodiment is only one example of the present application and is not intended to limit the implementation and scope of the present application. Any technical solution that is the same as or equivalent to the content described in the claims of the present application should be included in the protection scope of the present application.

Claims

1. A fully automatic protective film application machine for charger casings, including a machine base, characterized in that: It also includes a chain conveyor line, which is set on the machine platform and used to transport chargers; The loading platform is located on the machine platform and is opposite to the beginning of the chain conveyor line that transports the chargers. It is used to place the chargers in front of the chain conveyor line for material preparation. A fixing component, located on the chain conveyor line, is used to fix and limit the charger placed on the chain conveyor line before it is covered with a protective film. The film-coating mechanism, located on the machine base and above the fixed components, is used for conveying, cutting, enlarging holes, and coating the tubular protective film strip with the charger protective film. The film pressing assembly, located on one side of the chain conveyor line and adjacent to the fixing assembly, is used to press the protective film fitted on the charger into place. The heat shrinking mechanism, located above the chain conveyor line and adjacent to the film pressing assembly, is used to heat the protective film on the charger, causing the protective film to shrink and wrap around the charger. The unloading mechanism is located on the machine platform and is opposite to the end of the chain conveyor line that transports the chargers. It is used to unload and recycle the chargers that have been coated. The unloading chute is located on the machine platform and connects to the end of the chain conveyor line that transports chargers. It is used to unload and recycle chargers that have been fitted with protective films. The control screen, located on the machine, is used for human-computer interaction to control the processing of the charger sleeve protective film. The film-covering mechanism includes a film-covering upright plate and a height adjustment component, which is disposed on one side of the film-covering upright plate and is used to adjust the height of the protective film in front of the charger. The film feeding assembly is located on the same side of the upper end of the film-covering upright plate and is used to feed the protective film. The unwinding assembly, located above the top of the protective film stand, is used to unwind the tubular protective film roll. Tension testing components are located on one side of the protective film stand plate and are used to test the tension of the protective film conveyor belt. The tensioning assembly is located on the other side of the upper end of the film-covering plate and is used to convey and tension the protective film strip. The cutting assembly, located below the tensioning assembly, is used to clamp, cut, and open the protective film tube holes of the protective film strip. The protective film assembly, located below the tensioning assembly, is used to open the protective film tube holes and cover the charger with a protective film. The cutting assembly includes a cutting horizontal plate mounted on the film-covering vertical plate, a cutting vertical plate mounted on the cutting horizontal plate, a second linear sliding module mounted on one side of the cutting vertical plate, a screw connecting seat mounted on the second linear sliding module, a second ball screw assembly connected to the screw connecting seat, a knob mounted on the upper end of the screw of the second ball screw assembly, the second ball screw assembly mounted on the cutting vertical plate via a third bearing seat, a second mounting plate mounted on the screw connecting seat, a fifth driving device mounted on the second mounting plate, a sixth driving device mounted on the output end of the fifth driving device, two suction plates mounted on the output end of the sixth driving device for clamping the two sides of the protective film strip, the fifth driving device and the sixth driving device are respectively located on the other side of the cutting vertical plate, a seventh driving device mounted above the sixth driving device, the seventh driving device being fixed to the cutting vertical plate via the third mounting plate; The fixing assembly includes a twelfth drive device and a thirteenth drive device, which are arranged opposite to each other. The output end of the twelfth drive device is provided with a clamping block mounting plate. The two ends of the clamping block mounting plate facing the thirteenth drive device are respectively provided with a first clamping block and a second clamping block. The first clamping block is provided with a positioning groove. A locking block is integrally formed extending outward from the side of the first clamping block facing the thirteenth drive device. The first clamping block and the second clamping block are arranged in mirror symmetry. The output end of the thirteenth drive device is provided with a clamping plate. The pressing assembly includes a sixth mounting plate with a pressing groove at its upper end. A fourteenth driving device is provided on the side of the sixth mounting plate facing away from the chain conveyor. A pressure plate is provided on the output end of the fourteenth driving device, and the pressure plate passes through the pressing groove. The fourteenth driving device drives the pressure plate to descend to press the protective film fitted on the charger housing into place. A reference block for lateral support of the charger is provided on the side of the sixth mounting plate facing the chain conveyor.

2. The fully automatic protective film application machine for charger casings according to claim 1, characterized in that: The chain conveyor line includes a chain support, a chain assembly on the chain support, and a fixture for carrying the charger on the chain assembly. There is one or more fixtures and adjacent fixtures are equidistantly arranged. The chain assembly is connected to a first drive device.

3. The fully automatic protective film application machine for charger casings according to claim 1, characterized in that: The height adjustment assembly includes a first bearing seat, on which are provided three first guide rod bearing assemblies and one 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 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 to the bases through first support seats. The screw of the first ball screw assembly is rotatably connected to the first guide rod connecting plate through a screw bearing. A first handwheel is connected to the upper end of the screw of the first ball screw assembly. A first positioning lock is provided on the guide rod of any one of the three first guide rod bearing assemblies. The first positioning lock is located on the first bearing seat. The unwinding assembly includes an unwinding bracket mounted on the film-covering plate. The upper end of the unwinding bracket is provided with a second driving device for actively unwinding the tubular protective film roll. The output end of the second driving device is connected to an unwinding roller for supporting the protective film roll. The unwinding roller is provided with a material tray for limiting the position of the protective film roll. The tension testing assembly includes an adjustment plate located on one side of the film-coating plate. One upper side of the adjustment plate is provided with a first, second, and third conveyor rollers for conveying the material strip. A tension roller is provided on the same lower side of the adjustment plate. The material strip sequentially wraps around the first and second conveyor rollers, supports the tension roller, and then wraps around the third conveyor roller. A second bearing seat is provided on the other lower side of the adjustment plate. Two second guide rod bearing assemblies are respectively provided at both ends of the second bearing seat. The upper ends of the guide rods of the two second guide rod bearing assemblies are connected to a second guide rod connecting plate. The lower ends of the guide rods of the two second guide rod bearing assemblies are connected to a third guide rod connecting plate. An adjustment groove is provided at the lower end of the adjustment plate, and the adjustment groove is vertically arranged. The tension roller passes through the adjustment groove and is installed on the second bearing seat. A sensor positioning plate is connected to the same end of the second and third guide rod connecting plates. A first proximity sensor and a second proximity sensor are sequentially provided on the sensor positioning plate from top to bottom. A light-shielding sheet adapted to the first and second proximity sensors is provided on the second bearing seat. The tensioning assembly includes a first roller, a second roller, a fourth roller, and a fifth roller located on one side of the top of the film-coating plate. The first roller, the second roller, the fourth roller, and the fifth roller are on the same horizontal plane. An elastic lever is provided above the fourth roller, and the elastic lever is fixed to the film-coating plate by a lever bracket.

4. The fully automatic protective film application machine for charger housings according to claim 1, characterized in that: The film feeding assembly includes a first mounting plate, on which a third driving device is mounted. The output end of the third driving device is connected to a film feeding moving plate. On one side of the film feeding moving plate are a fourth driving device, a first linear sliding module, and a film feeding active roller. The film feeding moving plate is driven to the film covering plate through the first linear sliding module. The film feeding moving plate moves linearly on the film covering plate. A pulley assembly is connected between the fourth driving device and the film feeding active roller. The fourth driving device is driven to the film feeding active roller through the pulley assembly. On the other side of the film feeding moving plate are a tensioning wheel for adjusting the tension of the pulley assembly. The tensioning wheel is fixed to the film feeding moving plate through a tensioning wheel positioning plate. On one side of the film feeding active roller are a film feeding passive roller. The film feeding passive roller is rotatably connected to the film covering plate and is located on the straight line of movement of the film feeding active roller.

5. The fully automatic protective film application machine for charger casings according to claim 1, characterized in that: The protective film assembly includes an eighth driving device, and 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 base plate is provided on the output end of the ninth driving device. A third linear sliding module is provided on the first base plate. A first moving seat and a second moving seat are respectively provided on the two sliding parts of the third linear sliding module. The first moving seat and the second moving seat are arranged opposite to each other. A first support plate and a second support plate are respectively provided on the first moving seat and the second moving seat. The first support plate and the second support plate are arranged opposite to each other. A fourth mounting plate and a fifth mounting plate are respectively provided on the two ends of the first base plate. A tenth driving device and an eleventh driving device are respectively provided on the fourth mounting plate and the fifth mounting plate. The tenth driving device and the eleventh driving device are arranged opposite to each other. 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 element is connected between the fourth mounting plate and the first moving seat. A second elastic element 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 to move away from each other to open the protective film tube hole.

6. The fully automatic protective film application machine for charger casings according to claim 1, characterized in that: The heat shrinking mechanism includes a mounting frame. Two third guide rod bearing assemblies are connected to one side of the mounting frame. The upper ends of the guide rods of the two third guide rod bearing assemblies are 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 to 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 to the mounting frame. 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 bracket is connected to a heat shrink box. The bottom of the heat shrink box has a horizontally recessed heat shrink channel. The vertical cross-section of the inner wall of the heat shrink channel is U-shaped. Ventilation slots are provided on both sides of the heat shrink channel. Heating tubes are provided on both outer sides of the heat shrink channel. The sixteenth drive device is located above the heat shrink channel. A turbo fan is provided on the output end of the sixteenth drive device.

7. The fully automatic protective film application machine for charger casings according to claim 1, characterized in that: The feeding mechanism includes an eighth mounting plate. Two vertically arranged fourth guide rod bearing assemblies are connected to one side of the eighth mounting plate. The upper ends of the guide rods of the two fourth guide rod bearing assemblies are connected to a fifth guide rod connecting plate. A second base plate is located 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 to the second base plate via third support seats. A third ball screw assembly is connected to the same side of the eighth mounting plate. The screw of the third ball screw assembly is rotatably connected to the fifth guide rod connecting plate. A second handwheel is located at the upper end of the screw of the third ball screw assembly. Rotating the second handwheel drives the screw of the third ball screw assembly to rotate, thereby driving the eighth mounting plate to move up and down. A second positioning lock is located at the lower end of the screw of the third ball screw assembly. The second positioning lock locks the screw of the third ball screw assembly to prevent rotation and thus prevent the eighth mounting plate from rotating. The height of the plate is used for positioning. On the other side of the eighth mounting plate, there is a seventeenth driving device and a fourth linear sliding module. The output end of the seventeenth driving device and the sliding part of the fourth linear sliding module are connected to the ninth mounting plate. The ninth mounting plate is connected to the eighteenth driving device. The output end of the eighteenth driving device is equipped with a tenth mounting plate. The bottom surface of the tenth mounting plate is equipped with a nineteenth driving device. The output end of the nineteenth driving device is equipped with two clamping arms. The two clamping arms are arranged opposite each other. Each clamping arm is equipped with an adjusting screw. The two adjusting screws are on the same straight line. The opposite end faces of the two adjusting screws are equipped with rubber blocks. The sides of the ninth mounting plate are equipped with a first buffer and a second buffer, respectively. The first buffer is fixed to one end of the eighth mounting plate through the tenth mounting plate. The second buffer is fixed to the other end of the eighth mounting plate through the eleventh mounting plate.

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