CN115973505A - Full-automatic wrapping machine - Google Patents

Abstract

The invention relates to a full-automatic wrapping machine which is reasonable in structure, stable in movement and capable of achieving vertical arrangement and wrapping of paper boxes. The full-automatic wrapping machine comprises a machine base, a feeding conveying device, a turnover conveying device and a wrapping material pushing device, and is characterized in that: the feeding conveying device is connected with the overturning conveying device in a conveying mode and is positioned on a feeding path; the wrapping and pushing device is positioned on a wrapping path, and the feeding path and the wrapping path are arranged in parallel from left to right; the feeding conveying device comprises a feeding conveying belt; the turnover conveying device comprises a conveying platform, a turnover stopper positioned on the conveying platform and a left turnover conveying belt and a right turnover conveying belt which are erected on the left side and the right side. The full-automatic wrapping machine can realize vertical arrangement and wrapping of the paper boxes and meet the linkage requirement of a front-end boxing machine.

Description

Full-automatic wrapping machine

FIELD

The invention relates to a packaging machine, in particular to a full-automatic wrapping machine.

Background

A wrapping machine is an apparatus for wrapping and then packaging a packaged material with a film, and is widely used in the field of packaging of articles such as food, medical supplies, and the like. However, in the pharmaceutical packaging industry, it is necessary to arrange a single package (a carton containing a medicine) into a plurality of packages (a plurality of cartons) as required, and then to wrap the entire package with a film and heat-seal the package. At present, the existing wrapping machine can wrap materials, but has no function of erecting cartons and then arranging the cartons for wrapping, and the market urgently needs equipment capable of conveying the cartons and then erecting, arranging and wrapping the cartons.

Disclosure of Invention

In view of the defects in the prior art, the invention innovatively provides the full-automatic wrapping machine which is reasonable in structure, stable in movement and capable of achieving vertical arrangement and wrapping of paper boxes.

This kind of full-automatic wrapping machine is including frame, feeding conveyor, upset conveyor and wrap up in a packet blevile of push, its characterized in that: the feeding conveying device is connected with the overturning conveying device in a conveying manner and is positioned on a feeding path; the wrapping and pushing device is positioned on a wrapping path, and the feeding path and the wrapping path are arranged in parallel from left to right; the feeding conveying device comprises a feeding conveying belt; the turnover conveying device comprises a conveying platform, a turnover stopper positioned on the conveying platform and a left turnover conveying belt and a right turnover conveying belt which are erected on the left and right sides, wherein the turnover stopper is positioned between the left and right turnover conveying belts; a side material pushing mechanism is arranged in front of the overturning conveying device and comprises a side material pushing plate and a side material pushing power source for driving the side material pushing plate to move left and right, and the side material pushing plate can push materials on a feeding path to a wrapping path; the wrapping and pushing device is arranged on the opposite side of the side pushing mechanism and comprises a wrapping pushing plate and a wrapping pushing power source for driving the wrapping pushing plate to move back and forth.

The wrapping path is provided with a film discharging device, a front sealing and edge folding device and a side sealing and edge folding device, and the wrapping material pushing plate can push the material to the film discharging device; the front sealing and edge folding device is positioned in front of the lower film device; the side sealing and folding device is positioned in front of the front sealing and folding device.

Wrap up in and be equipped with two left and right sides support conducting bars on the package route, the below of supporting the conducting bar is equipped with down blevile of push, blevile of push is including pushing down material seat, many down the material pole and pushing down the material power supply down, and many down the material pole are connected under on pushing down the material seat along the fore-and-aft direction, have the interval that holds the material between two adjacent down the material pole, install on horizontal migration seat down the material seat liftable, install the lift power supply that the material seat goes up and down under the drive on the horizontal migration seat, the movably installation on horizontal guide of horizontal migration seat is, the material power supply can drive horizontal migration seat and remove on horizontal guide down.

The feeding conveyer belt of the feeding conveyer device comprises a first conveying surface and a second conveying surface, wherein the first conveying surface is flushed with the second conveying surface, a blanking interval which is larger than the length of a material is arranged between the first conveying surface and the second conveying surface, a left guide plate and a right guide plate are arranged between the first conveying surface and the second conveying surface, the left guide plate and the right guide plate are flushed with the conveying surfaces, and the distance between the left guide plate and the right guide plate is larger than the width of the material and smaller than the length of the material.

The film feeding device is arranged above the feeding conveying device and comprises a film feeding base, two unwinding stations for placing film rolls are arranged on the film feeding base, a film receiving platform is mounted on the film feeding base, an upper heat sealing mechanism and an upper cutting mechanism are arranged above the film receiving platform and positioned in front of the upper cutting mechanism, the upper heat sealing mechanism comprises an upper heat sealing head and an upper heat sealing power source for driving the upper heat sealing head to move up and down, and the upper cutting mechanism comprises an upper cutting knife and an upper cutting power source for driving the upper cutting knife to move up and down; a lower heat sealing mechanism and a lower cutting mechanism are arranged below the film connecting platform, the lower heat sealing mechanism is positioned in front of the lower cutting mechanism, the lower heat sealing mechanism comprises a lower heat sealing head and a lower heat sealing power source for driving the lower heat sealing head to move up and down, and the lower cutting mechanism comprises a lower cutting knife and a lower cutting power source for driving the lower cutting knife to move up and down; and the film connecting platform is provided with a window for realizing die assembly of the upper heat sealing head and the lower heat sealing head.

The front end that connects the membrane platform has the step portion, the plane of step portion is less than the plane that connects the membrane platform, the window is located the step portion, step portion and connect and have the perforation that lets the membrane pass between the membrane platform.

The film discharging device comprises a film drawing roller set, a film cutting mechanism and a film conveying mechanism, the film drawing roller set is located above the film cutting mechanism, the film conveying mechanism is located below the film cutting mechanism, the film cutting mechanism comprises a film cutting knife, the film conveying mechanism comprises a left film suction assembly and a right film suction assembly, each film suction assembly comprises a vacuum film suction synchronous belt and an upper synchronous belt pulley and a lower synchronous belt pulley, the vacuum film suction synchronous belts are wound on the upper synchronous belt pulley and the lower synchronous belt pulley, the synchronous belt pulleys are in transmission connection with a film conveying power source, and negative pressure holes communicated with an air source are distributed in the vacuum film suction synchronous belts along the up-down direction.

An upper air blowing guide block is arranged between the film drawing roller set and the film cutting mechanism, an upper air blowing hole communicated with an air source is formed in the upper air blowing guide block, and the upper air blowing hole of the upper air blowing guide block is obliquely arranged downwards; an upper film guide strip is arranged on one side opposite to the upper air blowing guide block, and a space for a film to pass through is formed between the upper film guide strip and the upper air blowing guide block; a lower air blowing guide block is arranged between the film cutting mechanism and the film feeding mechanism, a lower air blowing hole communicated with an air source is arranged on the lower air blowing guide block, and the lower air blowing hole of the lower air blowing guide block is obliquely arranged downwards; and a lower film guide strip is arranged on one side opposite to the lower air blowing guide block, and a space for the film to pass through is formed between the lower film guide strip and the lower air blowing guide block.

The front sealing edge folding device comprises a heat sealing mechanism, the heat sealing mechanism comprises a heat sealing head, a heat sealing connecting rod, a guide wheel groove and a heat sealing power source, the heat sealing head is connected to one end of the heat sealing connecting rod, the other end of the heat sealing connecting rod is hinged to a heat sealing lifting seat, the heat sealing lifting seat is in transmission connection with the heat sealing power source driving the heat sealing lifting seat to lift, the guide wheel is connected to the heat sealing connecting rod, the guide wheel is located in the guide wheel groove, and the guide wheel groove is arranged in the oblique direction.

The front sealing and edge folding device comprises an edge folding mechanism, the edge folding mechanism and the heat sealing mechanism are arranged up and down, and a space for materials to pass through is formed between the edge folding mechanism and the heat sealing mechanism; the hem mechanism is including preceding hem board, hem cam, extension spring and hem power supply, preceding hem board rotationally installs on hem lift seat, hem lift seat is connected with the hem power supply transmission that drive hem lift seat reciprocated, be connected with the gyro wheel arm on the preceding hem board, be connected with the gyro wheel on the gyro wheel arm, the hem cam is located one side of gyro wheel arm, extension spring one end is fixed, the extension spring other end is connected with preceding hem board, the extension spring orders about the gyro wheel and acts on the cam surface of hem cam.

According to the full-automatic wrapping machine provided by the invention, the paper boxes can be wrapped in an upright arrangement manner, and the linkage requirement of a front-end boxing machine is met.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at C;

FIG. 4 is a front view of the lower pushing device;

FIG. 5 is a perspective view of the feed delivery device;

FIG. 6 is a front view of the feed conveyor;

FIG. 7 is an internal structural view of the feed conveyor;

FIG. 8 is a perspective view of a film supply apparatus;

FIG. 9 is a front view of a film supply apparatus;

FIG. 10 is a perspective view of a film splicing platform;

FIG. 11 is a perspective view of the film deposition apparatus;

FIG. 12 is a front view of the lower membrane device;

FIG. 13 is an enlarged view of a portion of FIG. 12 at E;

FIG. 14 is an enlarged view of a portion of FIG. 11 at D;

FIG. 15 is a schematic view of an upper and lower air blowing guide blocks;

FIG. 16 is a front view of the front hem seal assembly;

FIG. 17 is a perspective view of the hemming mechanism;

FIG. 18 is a front view of the hemming mechanism;

fig. 19 is a front view of the heat-sealing mechanism.

Detailed description of the preferred embodiments

The full-automatic wrapping machine is used for being linked with a boxing machine, arranging single materials W (such as a paper box for containing medicines) packaged by the boxing machine into a plurality of materials W (a plurality of paper boxes) according to needs, and then wrapping all the materials W by using a film and then carrying out heat sealing.

As shown in fig. 1 and 2, the full-automatic wrapping machine includes a machine base, a feeding conveyor 1, a turning conveyor 2 and a wrapping pusher 4. The feeding conveying device 1 is in conveying connection with the overturning conveying device 2 and is positioned on the feeding path A; the wrapping and pushing device 4 is positioned on the wrapping path B, and the feeding path A and the wrapping path B are arranged side by side left and right; the feeding conveying device 1 comprises a feeding conveying belt; the turnover conveying device 2 comprises a conveying platform 20, a turnover stopper 21 positioned on the conveying platform 20 and a left turnover conveying belt 22 and a right turnover conveying belt 22 which are erected on the left and right sides, wherein the turnover stopper 21 is positioned between the left and right turnover conveying belts 22; a side material pushing mechanism 3 is arranged in front of the overturning conveying device 2, the side material pushing mechanism 3 comprises a side material pushing plate and a side material pushing power source for driving the side material pushing plate to move left and right, and the side material pushing plate can push materials on the feeding path A to the wrapping path B; the wrapping material pushing device 4 is arranged on the opposite side of the side material pushing mechanism 3, and the wrapping material pushing device 4 comprises a wrapping material pushing plate and a wrapping material pushing power source for driving the wrapping material pushing plate to move back and forth.

The working principle is as follows: the method comprises the following steps that the paper boxes discharged from a boxing machine enter a feeding conveying device 1 firstly, the feeding conveying device 1 conveys the paper boxes to a wrapping and pushing device 4, the paper boxes discharged from the boxing machine are horizontally arranged and need to be vertically arranged during wrapping, so the paper boxes need to be vertically arranged on the wrapping and pushing device 4, as shown in fig. 3, after the materials enter a conveying platform 20 of a turnover conveying device 2, a left turnover conveying belt 22 and a right turnover conveying belt 22 clamp the materials W to move forwards, when the materials W touch a turnover stopper 21, the materials W are automatically turned over and vertically arranged under the action of the turnover conveying belt 22, and thus the materials are continuously moved forwards under the pushing of the turnover conveying belt 22 and are arranged into a row of vertical material groups; then, a side material pushing power source of the side material pushing mechanism 3 drives the side material pushing plate to move, a plurality of standing material groups on the feeding path A are pushed to the wrapping path B, then a wrapping material pushing power source of the wrapping material pushing device 4 drives the wrapping material pushing plate to push the standing material groups forward, and finally the material groups enter a wrapping station to complete wrapping work.

The wrapping station is positioned on the wrapping path B and is generally provided with a film laying device 5, a front sealing and edge folding device 6 and a side sealing and edge folding device 7; the front edge sealing and folding device 6 is positioned in front of the lower film device 5, and the side edge sealing and folding device 7 is positioned in front of the front edge sealing and folding device 6. The film discharging device 5 is used for cutting off the film and sending the film to the front of the wrapping material pushing device 4, and when the wrapping material pushing device 4 pushes the material forwards, the film automatically wraps the material; the front sealing and edge folding device 6 is used for heat sealing the front end of the film wrapped with the material; the side sealing and edge folding device 7 is used for heat sealing the side edge of the film wrapping the material. It is worth mentioning here that the full-automatic wrapping machine of the present invention can adopt the film feeding device 5, the front edge sealing and folding device 6 and the side edge sealing and folding device 7 in the prior art.

As described above, after the front end of the film wrapping the material is heat sealed by the front edge sealing and folding device 6, the material needs to be continuously conveyed forward, and conveyed to the side edge sealing and folding device 7 for side edge heat sealing. The current model of the market pushes the whole material to be packaged by a pack of material, easily causes the adhesion between each parcel (because the front end of the film is hot-sealed and then has viscosity), also easily extrudes and deforms the paper box, causes the damage of the parcel, and wastes the film and the paper box. Therefore, the wrapping path B is provided with a left supporting guide bar B0 and a right supporting guide bar B0, as shown in FIG. 4, a material W is placed on the left supporting guide bar B0 and the right supporting guide bar B0, a lower pushing device 8 is arranged below the supporting guide bar B0, the lower pushing device 8 comprises a lower pushing seat 81, a plurality of lower pushing rods 80 and a lower pushing power source 84, the plurality of lower pushing rods 80 are connected to the lower pushing seat 81 along the front-back direction, a space for accommodating the material is formed between every two adjacent lower pushing rods 80, the lower pushing seat 81 is arranged on a horizontal moving seat 83 in a lifting mode, a lifting power source 82 for driving the lower pushing seat to lift 83 is arranged on the horizontal moving seat 83, the horizontal moving seat 83 is movably arranged on the horizontal guide rail, and the lower pushing power source 84 can drive the horizontal moving seat 83 to move on the horizontal guide rail.

The working principle of the lower pushing device 8 is as follows: after front end heat-sealing is completed by the front edge sealing device 6, the lifting power source 82 drives the lower material pushing seat 81 to move upwards, the lower material pushing rod 80 penetrates through the left and right supporting guide strips B0 to reach the front of the material, then the lower material pushing power source 84 drives the lower material pushing seat 81 to move forwards, so that the lower material pushing rod 80 pushes the material to move forwards, the lower material pushing rod 80 has multiple parts, each part can separate two adjacent materials, so that adhesion of the two adjacent materials W cannot occur, extrusion of the materials cannot occur, and therefore the attractiveness of wrapping the materials is guaranteed.

As shown in fig. 1, the feeding conveyor 1 may be a conventional conveyor (having only one conveying surface), and when the cartoning machine feeds individual cartons to the wrapping machine, some cartons are not placed longitudinally, but are placed obliquely or transversely, so that the cartons cannot be arranged longitudinally, and the wrapping becomes problematic. In order to solve the problem, as shown in fig. 5 and fig. 6, the feeding conveyor belt 110 of the feeding conveyor device 1 includes a first conveying surface 11 and a second conveying surface 12, the first conveying surface 11 is flush with the second conveying surface 12, a blanking interval 13 greater than the length of the material is provided between the first conveying surface 11 and the second conveying surface 12, a left guide plate 14 and a right guide plate 14 are provided between the first conveying surface 11 and the second conveying surface 12, both the left guide plate 14 and the right guide plate 14 are flush with the conveying surfaces (i.e., flush with both the first conveying surface 11 and the second conveying surface 12), and the distance between the left guide plate 14 and the right guide plate 14 is greater than the width of the material and less than the length of the material.

When the carton conveying device works, a carton is conveyed forwards on the first conveying surface 11, and when the carton is longitudinally placed, because the distance between the left guide plate 14 and the right guide plate 14 is smaller than the length of the carton, the carton can be supported by the left guide plate 14 and the right guide plate 14, so that the carton can pass through the carton smoothly and then comes onto the second conveying surface 12; when the carton is transversely placed, the distance between the left guide plate 14 and the right guide plate 14 is larger than the width of the carton, and the blanking interval 13 which is larger than the length of the material is arranged between the first conveying surface 11 and the second conveying surface 12, so that the carton falls from the blanking interval 13. In this way, only the cartons placed transversely can be fed onto the second conveying surface 12 and then all arranged in a longitudinal manner, so that a plurality of cartons can be smoothly wrapped by the film.

The first conveying surface 11 and the second conveying surface 12 may be formed by two independent feeding conveyor belts, but the two feeding conveyor belts must be driven by two power sources, which is relatively expensive, and it is difficult to completely synchronize the two feeding conveyor belts.

In order to solve this problem, the first conveying surface 11 and the second conveying surface 12 of the present invention are formed by one conveyor belt. The concrete structure is as follows: as shown in fig. 7, the conveying mechanism includes a first lower belt roller 111, a first right belt roller 112, a first left belt roller 113, a tension roller 115, a driving roller 116, a second right belt roller 117, a second left belt roller 118, a second lower belt roller 119, and a feeding conveyer belt 110, the feeding conveyer belt 110 is sequentially wound on the first lower belt roller 111, the first right belt roller 112, the first left belt roller 113, the tension roller 115, the driving roller 116, the second right belt roller 117, the second left belt roller 118, and the second lower belt roller 119, and the driving roller 116 is in transmission connection with the conveying power source 19; the first lower belt roller 111 is located below the first right belt roller 112, the second lower belt roller 119 is located below the second left belt roller 118, a blanking interval 13 is formed between the first right belt roller 112 and the second left belt roller 118, the feeding and conveying belt 110 between the first right belt roller 112 and the first left belt roller 113 forms the first conveying surface 11, and the feeding and conveying belt 110 between the second right belt roller 117 and the second left belt roller 118 forms the second conveying surface 12. Through the structure, two conveying surfaces with the blanking interval 13 can be formed under the condition that one feeding conveying belt 110 is adopted, so that only one conveying power source 19 is needed to drive the feeding conveying belt 110 to move, the cost is lower, and the linear speeds of the first conveying surface 11 and the second conveying surface 12 can be kept completely the same due to the fact that one feeding conveying belt 110 is adopted.

The cartoning machine that packs the cartons transports the cartons onto the infeed conveyor 1 of the wrapping machine, however there may be small differences in the outfeed speed of the cartoning machine and the infeed speed of the infeed conveyor 1, possibly resulting in jamming of the cartons on the infeed conveyor 1. In order to prevent blockage, as shown in fig. 7, the moving roller 114 is arranged on the left side of the first lower belt roller 111, the tensioning roller 115 is arranged on the left side of the moving roller 114, the feeding conveyer belt 110 sequentially bypasses the first left belt roller 113, the moving roller 114 and the tensioning roller 115, the first left belt roller 113 and the moving roller 114 are installed on the moving seat 120, the moving seat 120 is slidably arranged on the guide rail 122, and the moving seat 120 is in transmission connection with the blockage-preventing power source 121 for driving the moving seat 120 to move back and forth on the guide rail 122. When the conveying mechanism is blocked, the anti-blocking power source 121 drives the moving seat 120 to move forward on the guide rail 122, so that the first left belt roller 113 and the moving roller 114 move forward together (the moving roller 114 moves together to enable the feeding conveying belt 110 to be always kept tensioned), the first left belt roller 113 forms a gap with the discharging end of the boxing machine, and the carton falls off from the gap, so that the blocking is prevented.

In addition, in order to detect whether the material blockage occurs on the conveying mechanism, the material blockage photoelectric eye 15 is arranged above the first conveying surface 11, the material blockage photoelectric eye 15 is electrically connected with the PLC, and the PLC controls the anti-blocking power source 121 to work. When the putty photoelectric eye 15 detects the material blockage, the putty photoelectric eye 15 just gives PLC with the signal transmission, and PLC control prevents stifled power supply 121 work, prevents stifled power supply 121 and just controls first left band roller 113 and remove.

As shown in FIG. 1, the present invention is provided with a film supply device 9 above the feeding conveyor 1, and the film supply device 9 is used for supplying film material. The wrapping machine on the existing market is only provided with a single film roll, when any film roll is used up, the machine needs to be stopped and the film roll needs to be replaced manually, the production line is suspended, the upstream and downstream equipment is affected, the manual film receiving can cause great waste, and meanwhile, the workload and the error probability are increased.

In order to solve the problem, the present invention provides a film supply device 9 that realizes continuous film supply. As shown in fig. 8 and 9, the film supplying device 9 includes a film supplying base 91, and the film supplying base 91 has two unwinding stations 92 for placing film rolls, and each unwinding station 92 can place one film roll. As shown in fig. 9, a film joining platform 98 is installed on the film supplying base 91, an upper heat sealing mechanism and an upper cutting mechanism are arranged above the film joining platform 98, the upper heat sealing mechanism is located in front of the upper cutting mechanism, the upper heat sealing mechanism comprises an upper heat sealing head 93 and an upper heat sealing power source 930 for driving the upper heat sealing head 93 to move up and down, and the upper cutting mechanism comprises an upper cutting knife 95 and an upper cutting power source 950 for driving the upper cutting knife 95 to move up and down; a lower heat sealing mechanism and a lower cutting mechanism are arranged below the film connecting platform 98, the lower heat sealing mechanism is positioned in front of the lower cutting mechanism, the lower heat sealing mechanism comprises a lower heat sealing head 94 and a lower heat sealing power source 940 for driving the lower heat sealing head 94 to move up and down, and the lower cutting mechanism comprises a lower cutting knife 96 and a lower cutting power source 960 for driving the lower cutting knife 96 to move up and down; the film-joining platform 98 has a window for the upper heat seal 93 and the lower heat seal 94 to close.

The membrane connecting principle is as follows: the front end of one film roll is pulled to the position above a film receiving platform 98, the front end of the other film roll is pulled to the position below the film receiving platform 98, one film roll is in a discharging state, when the film roll is used up (through photoelectric eyes or sensor induction), the tail end of the film roll corresponds to the front end of the other film roll, then an upper heat sealing head 93 and a lower heat sealing head 94 act to heat seal and connect the two film rolls together, and simultaneously, the tail end of the film roll is cut off by an upper cutting knife 95 or a lower cutting knife 96 corresponding to the tail end of the film roll (as the tail ends of the film rolls are all adhered to the film roll shafts through adhesive tapes, the tail ends of the film rolls are connected with the adhesive tapes to be cut off together), thereby completing the film receiving work.

In order to connect the two rolls of film together in a left-right alignment manner, a left upper baffle 97 and a right upper baffle 97 are arranged above the film connecting platform 98, and an upper space for the film to pass is formed between the left upper baffle 97 and the right upper baffle 97; a left lower baffle 970 and a right lower baffle 970 are arranged below the film receiving platform 98, and a lower space for the film to pass is formed between the left lower baffle 970 and the right lower baffle 970. The left upper baffle 97 and the right upper baffle 97 can limit the position of the film roll above the film roll, the left lower baffle 970 can limit the position of the film roll below the film roll, and therefore the upper film roll and the lower film roll can be limited to be completely aligned, the head and the tail of the two film rolls can be completely aligned together in a left-right mode, and the film splicing effect is improved.

As described above, when one roll of film is nearly used up, the film splicing operation is started, and in order to know whether one roll of film is nearly used up, the present invention provides a film splicing judgment photo-electric eye 920 at an unwinding station 91 (both unwinding stations 91 have the film splicing judgment photo-electric eye 920), the film splicing judgment photo-electric eye 920 is electrically connected to the PLC, and the PLC controls the upper heat-sealing power source 930, the lower heat-sealing power source 940, the upper cutting power source 950, and the lower cutting power source 960 to operate. When the film splicing judgment photoelectric eye 920 detects that the film roll is nearly used up, the film splicing judgment photoelectric eye 920 transmits a signal to the PLC, and the PLC controls each power source to work to complete the film splicing work.

When the film is connected, the upper heat seal head 93 and the lower heat seal head 94 need to be heated, in order to preheat the upper heat seal head 93 and the lower heat seal head 94 in advance, the unwinding station 91 is provided with the preheating photoelectric eye 921, the preheating photoelectric eye 921 is electrically connected with the PLC, and the PLC controls the upper heat seal head 93 and the lower heat seal head 94 to be preheated. When the preheating photoelectric eye 921 detects that the film roll is used to a certain extent, the preheating photoelectric eye 921 transmits a signal to the PLC, and the PLC controls the upper heat seal 93 and the lower heat seal 94 to preheat; after the upper heat seal 93 and the lower heat seal 94 are heat sealed, the upper heat seal 93 and the lower heat seal 94 are no longer heated, so that the energy consumption can be reduced to the maximum extent.

In order to enable the film below the film splicing platform 98 to be coiled with a hanging film position and enable the film splicing positions of the upper film and the lower film to be jointed together before heat sealing, as shown in fig. 10, the invention is provided with a step portion 980 at the front end of the film splicing platform 98, the plane of the step portion 980 is lower than the plane of the film splicing platform 98, a window 981 is positioned on the step portion 980, and a perforation 982 for the film to pass through is arranged between the step portion 980 and the film splicing platform 98, so that the film below the film splicing platform 98 passes through the perforation 982 and is hung on the step portion 980, because the plane of the step portion 980 is lower than the plane of the film splicing platform 98, the film above the film splicing platform 98 is pulled down at the position of the step portion 980 and is jointed with the film below, and the upper film and the lower film are jointed together and then heat sealing is carried out, so that the film cannot be pulled during heat sealing, and the heat sealing effect is better. Of course, the step 980 and the film-connecting platform 98 may be an integral structure or a separate structure, both of which are within the scope of the present invention

As shown in fig. 1 and 2, the film feeding device 5 is used to cut the film from the roll into the next sheet and place it in front of the wrapping pusher 4. The lower membrane device of ordinary wrapping machine cuts down the back with the film on the market at present, just down blows the film through the mode of blowing, then this kind of mode of blowing falls the membrane for a long time, and the film warp easily moreover, leads to packing pleasing to the eye, packing efficiency to go the scheduling problem.

Therefore, the invention provides a novel film discharging device 5, as shown in fig. 11 and 12, the film discharging device 5 comprises a film drawing roller set 51, a film cutting mechanism 54 and a film feeding mechanism 57, wherein the film drawing roller set 51 is positioned above the film cutting mechanism 54, and the film feeding mechanism 57 is positioned below the film cutting mechanism 54. The film drawing roller group 51 draws the film downward, and after the film is drawn to a certain length, the film cutting mechanism 54 cuts the film, and then the film is sent downward by the film sending mechanism 57. As shown in fig. 13, the film cutting mechanism 54 includes a film cutting knife 540, the film feeding mechanism 57 includes a left film suction assembly and a right film suction assembly, as shown in fig. 14, each film suction assembly includes a vacuum film suction synchronous belt 570 and an upper synchronous pulley and a lower synchronous pulley, the vacuum film suction synchronous belt 570 is wound around the upper synchronous pulley and the lower synchronous pulley, the synchronous pulleys are in transmission connection with a film feeding power source 572, and negative pressure holes 571 communicated with an air source are distributed on the vacuum film suction synchronous belt 570 along the up-down direction. The vacuum film suction timing belts 570 on the left and right sides are driven by the film feeding power source 572 to move in the up-down direction.

When the film feeding mechanism works, the film on the film roll drawn by the film drawing roller group 51 moves downwards, when the film moves downwards to a set position, the film cutting knife 540 of the film cutting mechanism 54 cuts the film, and the left and right vacuum film suction synchronous belts 570 of the film feeding mechanism 57 suck the film through the negative pressure holes 571 on the film suction synchronous belts and convey the film downwards. Because the vacuum film-sucking synchronous belt 570 is fast in moving speed, the time required by the film to move downwards is short, the packaging efficiency can be obviously improved, and the film is adsorbed on the vacuum film-sucking synchronous belt 570, so that the film can be kept more flat, and the attractiveness of subsequent wrapping is ensured.

Because there is interval (because of the installation problem, it is inevitable) between the drawing film roller set 51 and the film cutting mechanism 54, the film may deform at this position in the process of moving down, in order to prevent this, as shown in fig. 13, the invention has upper blowing guide block 52 between the drawing film roller set 51 and the film cutting mechanism 54, as shown in fig. 15, the upper blowing guide block 52 has upper blowing holes 520 communicated with the air source, the upper blowing holes 520 of the upper blowing guide block 52 are set obliquely downward; an upper film guide strip 53 is arranged on the opposite side of the upper air blowing guide block 52, and a space for the film to pass is arranged between the upper film guide strip 53 and the upper air blowing guide block 52. The upper blowing holes 520 of the upper blowing guide blocks 52 blow the film obliquely downwards, so that the film is always flatly leaned against the upper film guide strips 53, the film can be effectively prevented from deforming at the position between the film drawing roller group 51 and the film cutting mechanism 54, and the film is guaranteed to be flatly and constantly.

As shown in fig. 13, the film drawing roller set 51 includes a driving film drawing roller 510 and a driven film drawing roller 511, the driving film drawing roller 510 is in transmission connection with a film drawing power source 512, and the driving film drawing roller 510 is matched with the driven film drawing roller 511 to realize film drawing; in order to enable the film to move downwards in a flat manner after entering between the driving film-drawing roller 510 and the driven film-drawing roller 511, the driven film-drawing roller 511 or the driving film-drawing roller 510 of the invention is provided with a circular groove along the circumference, and the upper end of the upper film-guiding strip 53 extends into the circular groove. Through this kind of structure, do not influence the cooperation of initiative draw membrane roller 510 and driven draw membrane roller 511 and draw and pull, the film just can move down under the direction of last membrane strip 53 after coming between initiative draw membrane roller 510 and the driven draw membrane roller 511 simultaneously, guarantees the film roughness.

Also, since there is a space (which is unavoidable due to installation problems) between the film cutting mechanism 54 and the film feeding mechanism 57, the film may be deformed at this position during the downward movement, and in order to prevent this, as shown in fig. 13, a lower blowing guide block 55 is provided between the film cutting mechanism 54 and the film feeding mechanism 57, as shown in fig. 15, a lower blowing hole 550 communicated with a gas source is provided on the lower blowing guide block 55, and the lower blowing hole 550 of the lower blowing guide block 55 is provided obliquely downward; a lower film guide bar 56 is provided at the opposite side of the lower air blowing guide block 55, and a space for the film to pass is provided between the lower film guide bar 56 and the lower air blowing guide block 55. The lower blowing holes 550 of the lower blowing guide block 55 blow the film obliquely downward, so that the film is always flatly leaned against the lower film guide strip 56, and thus the film can be effectively prevented from deforming at the position between the film cutting mechanism 54 and the film feeding mechanism 57, and the film is guaranteed to be flatly and constantly.

Because a space is formed between the left and right membrane absorbing assemblies, in order to prevent the membrane from deforming in the space, the invention is provided with a front membrane blocking strip 58 and a rear membrane blocking strip 58 between the left and right membrane absorbing assemblies, and a space for the membrane to pass through is formed between the front membrane blocking strip 58 and the rear membrane blocking strip 58. The left and right sides of the film are adsorbed on the left and right vacuum film-sucking synchronous belts 570, and the middle part of the film is positioned between the front and the rear film-blocking strips 58, so that the middle part of the film is not deformed, the flatness of the film is ensured,

the film cutting mechanism 54 can adopt a common horizontal cutting mechanism or a rolling cutting structure, under the condition of adopting the rolling cutting structure, the film cutting mechanism 54 comprises a fixed cutter 541 besides a film cutting knife 540, the film cutting knife 540 is installed on a rotating shaft 542, the rotating shaft 542 is in transmission connection with a film cutting power source, through the driving of the film cutting power source, the rotating shaft 542 rotates, and the film cutting knife 540 rotates to be matched with the fixed cutter 541 to realize film cutting.

As shown in fig. 1, the front hem sealer 6 is used for heat-sealing the front end of the film wrapping the material. As shown in fig. 16, the front edge folding device 6 includes an edge folding mechanism 61 and a heat sealing mechanism 62, the edge folding mechanism 61 and the heat sealing mechanism 62 are disposed up and down, a space for the material to pass through is provided between the edge folding mechanism 61 and the heat sealing mechanism 62, the edge folding mechanism 61 folds the upper end of the film wrapping the material 63 down, and the heat sealing mechanism 62 pushes the lower end of the film wrapping the material 63 up, and heat seals the upper end and the lower end of the film together.

The specific structure and operation of the heat-sealing mechanism 62 and the folding mechanism 61 will be described below.

As shown in fig. 19, the heat sealing mechanism 62 of the front seal folding device 6 includes a heat sealing head 620, a heat sealing link 621, a guide wheel 622, a guide wheel groove 624, and a heat sealing power source 629. The heat sealing head 620 is connected to one end of the heat sealing connecting rod 621, and the other end of the heat sealing connecting rod 621 is hinged to the heat sealing lifting seat 623, as shown in fig. 16, the heat sealing lifting seat 623 is in transmission connection with a heat sealing power source 629 for driving the heat sealing lifting seat 623 to lift, the guide wheel 622 is connected to the heat sealing connecting rod 621, the guide wheel 622 is located in the guide wheel groove 624, and the guide wheel groove 624 is arranged obliquely upwards.

When the heat-sealing device works, the heat-sealing power source 629 drives the heat-sealing lifting seat 623 to move upwards, the heat-sealing connecting rod 621 moves upwards along with the heat-sealing lifting seat 623, the guide wheel 622 also moves upwards in the guide wheel groove 624, and the guide wheel groove 624 is obliquely upwards arranged, so that the guide wheel 622 also moves upwards to drive the upper end of the heat-sealing connecting rod 621 to also move upwards, so that the heat-sealing head 620 connected to the upper end of the heat-sealing connecting rod 621 obliquely acts on the film, and the heat-sealing head 620 has a component force which acts on the film positively, so that a better heat-sealing effect can be achieved.

In order to make the heat seal head 620 move more stably, a spring seat 626 is connected to the heat seal lifting seat 623, a spring 625 is arranged on the spring seat 626, the spring 625 acts on the heat seal connecting rod 621, and the acting point of the spring 625 is positioned below the guide wheel 622 and above the hinge point 627 of the heat seal connecting rod 621 and the heat seal lifting seat 623. Because the effect of spring 625, heat-seal connecting rod 621 is more stable when reciprocating, can not take place the shake to further promote the heat-seal effect.

As shown in fig. 17 and 19, the hemming mechanism 61 includes a hemming plate 610, a hemming cam 616, a tension spring 615, and a hemming power source 619, the hemming plate 610 is rotatably mounted on the hemming lift base 612, the hemming lift base 612 is in transmission connection with the hemming power source 619 for driving the hemming lift base 612 to move up and down, the hemming plate 610 is connected with a roller arm 613, the roller arm 613 is connected with a roller 614, the hemming cam 616 is located at one side of the roller arm 613, one end of the tension spring 615 is fixed, the other end of the tension spring 615 is connected with the hemming plate 610, and the tension spring 615 drives the roller 614 to act on a cam surface of the hemming cam 616.

In operation, the hemming power source 619 drives the hemming lift base 612 to move downwards, the tension spring 615 drives the roller 614 to always act on the cam surface of the hemming cam 616, the roller 614 on the roller arm 613 rolls on the cam surface of the hemming cam 616, and the roller arm 613 drives the hemming plate 610 to rotate under the action of the hemming cam 616, so that the hemming plate 610 can act on the film in a front direction while moving downwards, namely, a component force which acts on the film in the front direction is exerted on the film, so that the film can be tightly attached to the material 63, the wrapping performance of the film is better, and the package is more compact and attractive.

It should be noted here that the hemming plate 610 can be directly hinged to the hemming lift base 612, but the structure is complicated, the roller arm 613 is hinged to the hemming lift base 612, and since the roller arm 613 is connected to the hemming plate 610, it is equivalent to that the hemming plate 610 is rotatably mounted on the hemming lift base 612, and this connection mode is simpler in structure, more beneficial to manufacture, and can reduce the cost.

Before heat sealing, in order to wrap the upper and lower film surfaces more smoothly, as shown in fig. 16, the front pressing mechanism 64 is disposed at the front side of the folding mechanism 61, as shown in fig. 18, the front pressing mechanism 64 includes a front pressing plate 640, a front spring 642 and a front holder 643, the front pressing plate 640 is disposed on the front holder 643 through a front guide 641 in a vertically slidable manner, and the front spring 642 is sleeved on the front guide 641 and is located between the front holder 643 and the front pressing plate 640. Because the effect of preceding spring 642, preceding clamp plate 640 has the elasticity that reciprocates, when the material passed through in the below of preceding clamp plate 640, preceding clamp plate 640 just can press on the material, makes the film of parcel on the material laminate on the material more smoothly to make film parcel nature better, the packing is more pleasing to the eye.

After the material is heat sealed, in order to wrap the upper and lower film surfaces more smoothly, as shown in fig. 16, a rear pressing mechanism 65 is disposed at the rear side of the folding mechanism 61, as shown in fig. 18, the rear pressing mechanism 65 includes a rear pressing plate 650, a rear spring, and a rear support 653, the rear pressing plate 650 is slidably disposed on the rear support 653 up and down through a rear guide pillar 651, and the rear spring is sleeved on the rear guide pillar 651 and is located between the rear support 653 and the rear pressing plate 650. Due to the effect of the rear spring, the rear pressing plate 650 has elasticity of moving up and down, when materials pass through the lower portion of the rear pressing plate 650, the rear pressing plate 650 can press the materials, and films wrapped on the materials can be smoothly attached to the materials, so that the wrapping performance of the films is better, and the packages are more attractive.

As shown in fig. 1, the side folding device 7 includes two left and right side folding plates and two left and right side heat sealing plates, which are located in front of the side folding plates. The side folding plates can fold the films on the side edges of the materials, and then the side heat sealing plates are pressed on the side edges of the materials to heat seal the films on the side edges of the materials.

Finally, it is worth mentioning that the discharge conveying device 70 is arranged in front of the side sealing edge folding device 7, the discharge conveying device 70 comprises a discharge conveying belt, and the lower discharge device 8 pushes the material onto the discharge conveying belt. An upper shaping mechanism is arranged above the discharge conveying device 70, the upper shaping mechanism comprises an upper heating plate and an upper shaping power source for driving the upper heating plate to move up and down, the upper heating plate presses the upper surface of the material downwards, and the thin film on the upper surface of the material is subjected to heat sealing, shrinkage and shaping, so that the material is more attractive; and a lower shaping mechanism is arranged below the upper-section conveying surface of the discharging conveying belt and comprises a lower heating plate and a lower shaping power source for driving the lower heating plate to move up and down. The lower heating plate can heat the upper conveying surface of the discharging conveying belt, and the upper conveying surface of the discharging conveying belt can heat-seal, shrink and shape the film on the lower surface of the material, so that the material is more attractive.

Claims (10)

1. The utility model provides a full-automatic wrapping machine, includes frame, feeding conveyor (1), upset conveyor (2) and wraps up in a packet blevile of push (4), its characterized in that: the feeding conveying device (1) is connected with the overturning conveying device (2) in a conveying mode and is positioned on the feeding path (A); the wrapping and pushing device (4) is positioned on a wrapping path (B), and the feeding path (A) and the wrapping path (B) are arranged side by side from left to right; the feeding conveying device (1) comprises a feeding conveying belt (110); the overturning and conveying device (2) comprises a conveying platform (20), an overturning stopper (21) positioned on the conveying platform (20) and a left overturning conveying belt (22) and a right overturning conveying belt (22) which are erected on the left and right sides, wherein the overturning stopper (21) is positioned between the left overturning conveying belt (22) and the right overturning conveying belt (22); a side material pushing mechanism (3) is arranged in front of the overturning and conveying device (2), the side material pushing mechanism (3) comprises a side material pushing plate and a side material pushing power source for driving the side material pushing plate to move left and right, and the side material pushing plate can push materials on the feeding path (A) to the wrapping path (B); the wrapping and pushing device (4) is arranged on the opposite side of the side pushing mechanism (3), and the wrapping and pushing device (4) comprises a wrapping pushing plate and a wrapping pushing power source for driving the wrapping pushing plate to move back and forth.

2. The fully automatic wrapping machine according to claim 1, characterized in that: the wrapping path (B) is provided with a film discharging device (5), a front sealing and folding device (6) and a side sealing and folding device (7), and the wrapping material pushing plate can push the material to the film discharging device (5); the front sealing and folding device (6) is positioned in front of the lower film device (5); the side sealing and folding device (7) is positioned in front of the front sealing and folding device (6).

3. A fully automatic wrapping machine according to claim 1 or 2, characterised in that: wrap up in and be equipped with two left and right sides support conducting bar (B0) on package route (B), the below that supports conducting bar (B0) is equipped with down blevile of push (8), blevile of push (8) are including down feed socket (81), many down feed rod (80) and down feed power source (84), and many down feed rod (80) are connected under on feed socket (81) along the fore-and-aft direction, have the interval that holds the material between two adjacent down feed rod (80), install on horizontal migration seat (83) down feed socket (81) liftable, install lift power source (82) that drive feed socket goes up and down (83) under horizontal migration seat (83) on horizontal migration seat (83), movably the installing on horizontal migration seat (83), down feed power source (84) can drive horizontal migration seat (83) and move on horizontal migration.

4. A fully automatic wrapping machine according to claim 1 or 2, characterised in that: the feeding conveying belt (110) of the feeding conveying device (1) comprises a first conveying face (11) and a second conveying face (12), the first conveying face (11) is flush with the second conveying face (12), a blanking interval (13) larger than the length of a material is arranged between the first conveying face (11) and the second conveying face (12), a left guide plate and a right guide plate (14) are arranged between the first conveying face (11) and the second conveying face (12), the left guide plate and the right guide plate (14) are flush with the conveying faces, and the distance between the left guide plate and the right guide plate (14) is larger than the width of the material and smaller than the length of the material.

5. The fully automatic wrapping machine according to claim 1, characterized in that: a film supply device (9) is arranged above the feeding conveying device (1), the film supply device (9) comprises a film supply base (91), two unwinding stations (92) for placing film rolls are arranged on the film supply base (91), a film connecting platform (98) is mounted on the film supply base (91), an upper heat sealing mechanism and an upper cutting mechanism are arranged above the film connecting platform (98), the upper heat sealing mechanism is positioned in front of the upper cutting mechanism, the upper heat sealing mechanism comprises an upper heat sealing head (93) and an upper heat sealing power source (930) for driving the upper heat sealing head (93) to move up and down, and the upper cutting mechanism comprises an upper cutting knife (95) and an upper cutting power source (950) for driving the upper cutting knife (95) to move up and down; a lower heat sealing mechanism and a lower cutting mechanism are arranged below the film connecting platform (98), the lower heat sealing mechanism is positioned in front of the lower cutting mechanism, the lower heat sealing mechanism comprises a lower heat sealing head (94) and a lower heat sealing power source (940) for driving the lower heat sealing head (94) to move up and down, and the lower cutting mechanism comprises a lower cutting knife (96) and a lower cutting power source (960) for driving the lower cutting knife (96) to move up and down; and the film connecting platform (98) is provided with a window (981) for realizing the die assembly of the upper heat sealing head (93) and the lower heat sealing head (94).

6. The fully automatic bale wrapping machine of claim 5, wherein: the front end of the film splicing platform (98) is provided with a step part (980), the plane of the step part (980) is lower than that of the film splicing platform (98), the window (981) is located on the step part (980), and a through hole (982) for the film to pass through is formed between the step part (980) and the film splicing platform (98).

7. The fully automatic wrapping machine according to claim 2, characterized in that: the film discharging device (5) comprises a film drawing roller set (51), a film cutting mechanism (54) and a film feeding mechanism (57), the film drawing roller set (51) is located above the film cutting mechanism (54), the film feeding mechanism (57) is located below the film cutting mechanism (54), the film cutting mechanism (54) comprises a film cutting knife (540), the film feeding mechanism (57) comprises a left film suction component and a right film suction component, each film suction component comprises a vacuum film suction synchronous belt (570) and an upper synchronous pulley and a lower synchronous pulley, the vacuum film suction synchronous belt (570) is wound on the upper synchronous pulley and the lower synchronous pulley, the synchronous pulleys are in transmission connection with a film feeding power source (572), and negative pressure holes (571) communicated with an air source are distributed in the vacuum film suction synchronous belt (570) in the up-down direction.

8. The fully automatic wrapping machine according to claim 7, characterized in that: an upper blowing guide block (52) is arranged between the film drawing roller set (51) and the film cutting mechanism (54), an upper blowing hole (520) communicated with an air source is formed in the upper blowing guide block (52), and the upper blowing hole (520) of the upper blowing guide block (52) is obliquely arranged downwards; an upper film guide strip (53) is arranged on one side, opposite to the upper air blowing guide block (52), of the upper air blowing guide block, and a space for the film to pass through is formed between the upper film guide strip (53) and the upper air blowing guide block (52); a lower blowing guide block (55) is arranged between the film cutting mechanism (54) and the film feeding mechanism (57), a lower blowing hole (550) communicated with an air source is formed in the lower blowing guide block (55), and the lower blowing hole (550) of the lower blowing guide block (55) is obliquely arranged downwards; and a lower film guide strip (56) is arranged on one side opposite to the lower air blowing guide block (55), and a space for the film to pass through is formed between the lower film guide strip (56) and the lower air blowing guide block (55).

9. The fully automatic wrapping machine according to claim 2, characterized in that: preceding hem device (6) seal including heat-seal mechanism (62), heat-seal mechanism (62) is including heat-seal head (620), heat-seal connecting rod (621), guide pulley (622), guide wheel groove (624) and heat-seal power supply (629), heat-seal connecting rod (621) one end is connected in heat-seal connecting rod (620), heat-seal connecting rod (621) other end articulates on heat-seal lifting seat (623), heat-seal lifting seat (623) are connected with heat-seal power supply (629) transmission that drive heat-seal lifting seat (623) goes up and down, guide pulley (622) are connected on heat-seal connecting rod (621), guide pulley (622) are located guide wheel groove (624), guide wheel groove (624) upwards sets up to one side.

10. The fully automatic wrapping machine according to claim 9, characterized in that: the front sealing and flanging device (6) comprises a flanging mechanism (61), the flanging mechanism (61) and the heat-sealing mechanism (62) are arranged up and down, and a space for materials to pass through is formed between the flanging mechanism (61) and the heat-sealing mechanism (62); hem mechanism (61) is including preceding hem board (610), hem cam (616), extension spring (615) and hem power supply (619), preceding hem board (610) rotationally installs on hem lift seat (612), hem lift seat (612) is connected with hem power supply (619) transmission that drive hem lift seat (612) reciprocated, be connected with gyro wheel arm (613) on preceding hem board (610), be connected with gyro wheel (614) on gyro wheel arm (613), hem cam (616) is located one side of gyro wheel arm (613), extension spring (615) one end is fixed, the extension spring (615) other end is connected with preceding hem board (610), extension spring (615) order about gyro wheel (614) and are used in on the cam surface of hem cam (616).

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