CN219056787U - Film coating device of backlight plate - Google Patents
Film coating device of backlight plate Download PDFInfo
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- CN219056787U CN219056787U CN202223170727.3U CN202223170727U CN219056787U CN 219056787 U CN219056787 U CN 219056787U CN 202223170727 U CN202223170727 U CN 202223170727U CN 219056787 U CN219056787 U CN 219056787U
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Abstract
The utility model discloses a film coating device of a backlight plate, which comprises a machine table, a transmission mechanism, a film unreeling mechanism, a transverse film sealing mechanism, a film cutting mechanism, a left film sealing mechanism, a right film sealing mechanism and a vacuum mechanism. This application can be when heat sealing, carries out the evacuation through vacuum mechanism to the membrane bag inside, and the membrane bag is taken out to the vacuum suction nozzle after the evacuation, and right side seal membrane mechanism can continue to carry out heat sealing to the membrane bag right side this moment so that the membrane bag keeps the state at the evacuation. Therefore, after the backlight plate is filled into the film bag, the complete sealing and vacuumizing can be realized, the pollution of the backlight plate is reduced, and the production cost is reduced.
Description
Technical Field
The utility model relates to a film coating device of a backlight plate.
Background
The backlight plate is widely applied to displays of various electronic products such as digital sound equipment, vehicle-mounted instruments and meters, mobile phones, tablet personal computers and the like. The backlight plate has high requirement on the cleanliness of the environment, and the production environment is carried out under the ultra-clean condition.
The utility model relates to a Chinese patent application number 201810623082.3 and a patent with a name of a backlight source coating mechanism, which comprises an upper film feeding component, a lower film feeding component, a receiving platform for receiving an external backlight source, a film pressing device for driving the backlight source received by the receiving platform to move and pressing an upper film and a lower film on the front side and the back side of the backlight source, and a film shearing device arranged at the discharge end of the film pressing device, wherein the upper film feeding component is used for conveying the external upper film to the film pressing device, and the lower film feeding component is used for conveying the lower film to the film pressing device through the table top of the receiving platform. In the specification, the inclined planes of the diaphragm edge folding piece are abutted against two sides of the lower diaphragm to fold the diaphragm, and when the backlight source moves to the narrowest part between the two inclined planes, one ends of the two inclined planes are abutted against two side edges of the backlight source respectively, so that the folded diaphragm can be gradually attached to the two side edges of the backlight source in the moving process of the backlight source. And the two upper edge film laminating rollers respectively perform secondary lamination on the edge films on the two sides of the backlight source so as to improve the cling degree of the film.
Therefore, the coating mechanism only folds the lower membrane upwards to be attached to the edges of the two sides of the backlight source, and performs secondary lamination on the edge membranes of the two sides of the backlight source, so that the back light plate is not completely sealed after being coated, foreign matters or dust still possibly enter the back light plate through gaps, the back light plate is polluted, more waste materials are generated, and the production cost is increased.
Disclosure of Invention
The utility model provides a film coating device of a backlight plate, which overcomes the defects existing in the background technology. The technical scheme adopted for solving the technical problems is as follows:
a film coating apparatus for a backlight panel, the backlight panel being coated by an upper film and a lower film, the film coating apparatus comprising:
a machine table;
the transmission mechanism is used for conveying the backlight plate and penetrates through the whole machine;
the film unreeling mechanism is arranged on the machine table and can convey the upper film and the lower film to the conveying mechanism;
the transverse film sealing mechanism can be used for carrying out hot-pressing sealing on the upper film and the lower film in the transverse direction, is arranged on the machine table and is positioned at the downstream of the film unreeling mechanism;
the film cutting mechanism is used for simultaneously cutting the upper film and the lower film which are subjected to transverse sealing to form a film bag, is arranged on the machine table and is positioned at the downstream of the film unreeling mechanism;
a left side film sealing mechanism capable of performing hot-pressing sealing on the left side of the film bag and a right side film sealing mechanism capable of performing hot-pressing sealing on the right side of the film bag, wherein the left side film sealing mechanism and the right side film sealing mechanism are respectively positioned on the left side and the right side of the transmission mechanism and are positioned at the downstream of the film cutting mechanism;
the vacuum mechanism capable of vacuumizing the inside of the film bag is arranged on the same side of the machine table as the right film sealing mechanism, and is provided with a vacuum suction nozzle which can extend into the film bag and vacuumize the film bag.
In a preferred embodiment: the transverse film sealing mechanism comprises a transverse film sealing driving piece, a transverse heat sealing pressing strip, a transverse lower heat sealing pressing strip and a connecting rod assembly, wherein the transverse film sealing driving piece is connected with the connecting rod assembly, the connecting rod assembly is connected with the transverse heat sealing pressing strip and the transverse lower heat sealing pressing strip, an upper film and a lower film can move between the transverse heat sealing pressing strip and the transverse lower heat sealing pressing strip, and the transverse film sealing driving piece can drive the transverse heat sealing pressing strip and the transverse lower heat sealing pressing strip to move reversely through the connecting rod assembly.
In a preferred embodiment: the transverse film sealing mechanism further comprises a transverse sliding seat, and the transverse heat sealing pressing strip is connected with the transverse sliding seat; the connecting rod assembly comprises a first connecting rod, a second connecting rod and a connecting rod, the top end of the first connecting rod is rotationally connected with the transverse sliding seat, the bottom end of the first connecting rod is hinged with one end of the connecting rod, the top end of the second connecting rod is rotationally connected with the transverse lower heat-seal pressing strip, the bottom end of the second connecting rod is hinged with the other end of the connecting rod, and the middle part of the connecting rod is rotationally connected with the machine table; the transverse sealing film driving piece adopts an air cylinder and is connected with a transverse lower heat sealing pressing strip.
In a preferred embodiment: the transverse film sealing mechanism further comprises a transverse elastic piece, and the transverse heat sealing pressing strip is connected with the transverse sliding seat through the transverse elastic piece.
In a preferred embodiment: the film cutting mechanism comprises a transverse cutter which is fixedly connected to the transverse sliding seat, and the height of the transverse cutter is higher than that of the transverse heat sealing pressing strip.
In a preferred embodiment: the two transverse heat-sealing pressing strips are fixedly connected with the two transverse sliding seats, the two transverse heat-sealing pressing strips are arranged below the two transverse sliding seats at intervals, and the transverse cutter is fixedly connected between the two transverse sliding seats and extends downwards; the two transverse lower heat-seal pressing strips are fixedly connected and correspond to each other one by one.
In a preferred embodiment: the left side film sealing mechanism comprises a left side film sealing upper driving piece, a left side film sealing lower driving piece, a left side upper heat sealing pressing strip and a left side lower heat sealing pressing strip, wherein the left side film sealing upper driving piece is connected with the left side upper heat sealing pressing strip, and the left side film sealing lower driving piece is connected with the left side lower heat sealing pressing strip; the right side seal film mechanism comprises a right side seal film upper driving piece, a right side seal film lower driving piece, a right side upper heat seal pressing strip and a right side lower heat seal pressing strip, wherein the right side seal film upper driving piece is connected with the right side upper heat seal pressing strip, and the right side seal film lower driving piece is connected with the right side lower heat seal pressing strip.
In a preferred embodiment: the left side seal membrane mechanism further comprises a left side slide support assembly, the left side slide support assembly comprises a left sliding frame, a left sliding frame driving piece, two left sliding blocks, a left sliding frame driving piece and two supporting rods, the left sliding frame driving piece is in transmission connection with the left sliding frame and can drive the left sliding frame to move left and right, the left sliding frame driving piece is installed on the left sliding frame and is in transmission connection with the two left sliding blocks, the two left sliding blocks can move reversely along the length direction of the left sliding frame, the two supporting rods are respectively connected with the two left sliding blocks, and the tail ends of the two supporting rods face the transmission mechanism and can stretch into the left side of the membrane bag.
In a preferred embodiment: the vacuum mechanism further comprises a right sliding and stretching assembly, the right sliding and stretching assembly comprises a right sliding frame, a right sliding frame driving piece, two right sliding blocks and a right sliding block driving piece, the right sliding frame driving piece is in transmission connection with the right sliding frame and can drive the right sliding frame to move left and right, the right sliding block driving piece is arranged on the right sliding frame and is in transmission connection with the two right sliding blocks, the two right sliding blocks can move reversely along the length direction of the right sliding frame, the two vacuum suction nozzles are respectively connected with the two right sliding blocks, and the two vacuum suction nozzles can move to the right side between the upper heat-sealing pressing strip on the right side and the lower heat-sealing pressing strip on the right side and extend into the right side of the film bag.
In a preferred embodiment: the film unreeling mechanism comprises an upper film unreeling assembly and a lower film unreeling assembly, the upper film unreeling assembly comprises an upper film roll, an upper carrier roller, an upper winding roller and an upper guiding-out roller, the upper film roll is placed on the upper carrier roller, and the head end of the upper film extends out of the upper guiding-out roller and extends along the conveying mechanism after bypassing the upper winding roller; the lower film unreeling assembly comprises a lower film roll, a lower carrier roller, a lower winding roller and a lower guiding-out roller, wherein the lower film roll is placed on the lower carrier roller, and the head end of the lower film extends out of the lower guiding-out roller and extends along the conveying mechanism after bypassing the lower winding roller.
Compared with the background technology, the technical proposal has the following advantages:
1. this application will go up film and lower film and carry out heat sealing in horizontal direction through horizontal seal membrane mechanism, rethread cuts the last film and the lower film that the membrane mechanism will accomplish horizontal seal and cuts simultaneously in order to form the membrane bag, rethread left side seal membrane mechanism and right side seal membrane mechanism carry out heat sealing to the left side and the right side of membrane bag respectively, and when heat sealing, accessible vacuum mechanism carries out the evacuation to the membrane bag inside, vacuum suction nozzle takes out the membrane bag after the evacuation, right side seal membrane mechanism can continue to carry out heat sealing to the membrane bag right side so that the membrane bag keeps in the state of evacuation this moment. Therefore, after the backlight plate is filled into the film bag, the complete sealing and vacuumizing can be realized, the pollution of the backlight plate is reduced, and the production cost is reduced.
2. The height of the transverse cutter is higher than that of the transverse heat-sealing pressing strip, and when the transverse heat-sealing pressing strip moves downwards to be attached to the transverse lower heat-sealing pressing strip for heat sealing, the transverse cutter does not move to the upper film yet, and the transverse elastic piece is in an initial natural state; after the upper film and the lower film are heat-sealed by the transverse heat-sealing pressing strips, the transverse heat-sealing pressing strips are continuously moved downwards, so that the transverse elastic piece is compressed, and then the transverse cutter is exposed and moves downwards to cut the upper film and the lower film. The film cutting mechanism is matched with the transverse film sealing mechanism, and the design is ingenious.
3. The transverse heat-sealing pressing strips, the transverse sliding seat and the transverse lower heat-sealing pressing strips are respectively provided with two transverse cutters, and the transverse cutters are positioned between the two transverse heat-sealing pressing strips, so that the transverse film sealing mechanism can seal the rear end of the previous film bag and the front end of the next film bag at the same time, and cut the two film bags through transverse cuts, thereby saving the film-coating step and improving the efficiency.
4. The tail ends of the two supporting rods face the transmission mechanism and can extend into the left side of the film bag, and before the film sealing mechanism on the left side seals the film on the left side, the left side of the film bag can be unfolded and straightened through the two supporting rods, so that the left side sealing can be carried out better subsequently, and the success rate of sealing is improved.
5. The two vacuum suction nozzles can move between the upper right heat-sealing pressing strip and the lower right heat-sealing pressing strip and extend into the right side of the film bag, namely, before vacuumizing the film bag, the vacuum suction nozzles can spread and straighten the right side of the film bag, and the vacuum suction nozzles have the same effect as the stay bars.
Drawings
The utility model is further described below with reference to the drawings and examples.
Fig. 1 is a schematic diagram of an overall film coating apparatus of a backlight panel according to a preferred embodiment.
FIG. 2 is a schematic diagram showing a film unreeling mechanism of a preferred embodiment.
FIG. 3 is a second schematic diagram of a film unreeling mechanism of a preferred embodiment.
FIG. 4 is a schematic view showing a transverse film sealing mechanism according to a preferred embodiment, omitting a lower heat sealing bead.
FIG. 5 shows a second schematic structure of the transverse film sealing mechanism according to the preferred embodiment.
FIG. 6 is a schematic diagram showing the matching structure of the transverse film sealing mechanism and the film cutting mechanism according to a preferred embodiment.
FIG. 7 is a schematic diagram showing the assembly of the left side film sealing mechanism, the right side film sealing mechanism and the vacuum mechanism according to a preferred embodiment.
FIG. 8 is a schematic diagram showing the assembly of the right side film sealing mechanism and the vacuum mechanism according to a preferred embodiment.
FIG. 9 shows a second schematic assembly of the right side film sealing mechanism and the vacuum mechanism of a preferred embodiment.
FIG. 10 is a schematic diagram showing the assembly of the left side film sealing mechanism and the vacuum mechanism according to a preferred embodiment.
Detailed Description
In the claims, specification and drawings hereof, unless explicitly defined otherwise, the terms "first," "second," or "third," etc. are used for distinguishing between different objects and not for describing a particular sequential order.
In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, references to orientation or positional relationship such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. are based on the orientation and positional relationship shown in the drawings and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a particular orientation or be constructed and operated in a particular orientation, nor should it be construed as limiting the particular scope of the utility model.
In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, the terms "fixedly attached" and "fixedly attached" are to be construed broadly as any manner of connection without any positional or rotational relationship between the two, i.e. including non-removable, fixed, integrally connected, and fixedly connected by other means or elements.
In the claims, specification and drawings of the present utility model, the terms "comprising," having, "and variations thereof as used herein, are intended to be" including but not limited to.
Referring to fig. 1 to 10, a preferred embodiment of a coating apparatus for a backlight panel is disclosed, wherein the backlight panel is coated by an upper film 1 and a lower film 2.
The film coating device comprises a machine table 10, a transmission mechanism, a film unreeling mechanism, a transverse film sealing mechanism, a film cutting mechanism, a left film sealing mechanism, a right film sealing mechanism and a vacuum mechanism.
The conveying mechanism is used for conveying the backlight plate, and the conveying mechanism penetrates through the whole machine table 10. In this embodiment, the transmission mechanism includes a transmission motor (not shown) and a conveyor belt 20, which are conventional and will not be described in detail.
The film unreeling mechanism is arranged on the machine table 10 and can convey the upper film 1 and the lower film 2 to the conveying mechanism.
In this embodiment, the film unreeling mechanism includes an upper film unreeling assembly and a lower film unreeling assembly, the upper film unreeling assembly includes an upper film roll 31, an upper carrier roller 32, an upper winding roller 33 and an upper guiding-out roller 34, the upper film roll 31 is placed on the upper carrier roller 32, and the head end of the upper film 1 extends from the upper guiding-out roller 34 and extends along the conveying mechanism after bypassing the upper winding roller 33; the lower film unreeling assembly comprises a lower film roll 35, a lower carrier roller 36, a lower winding roller 37 and a lower export roller 38, wherein the lower film roll 2 is placed on the lower carrier roller 35, and the head end of the lower film 2 extends out of the lower export roller 38 and extends along the conveying mechanism after bypassing the lower winding roller 37.
As shown in fig. 2 and 3, the upper film unreeling assembly further comprises an upper film driving motor 39, wherein the upper film driving motor 39 drives the upper winding roller 33 to rotate, so as to drive the upper film 1 to extend along the length direction of the conveyor belt 20; similarly, the lower film unreeling assembly further comprises a lower film driving motor (not shown in the figure), and the lower film driving motor drives the lower winding roller 37 to rotate, so as to drive the lower film 2 to extend along the length direction of the conveyor belt 20. Thus, the upper film 1 and the lower film 2 can be attached to each other at the conveyor belt 20.
The transverse film sealing mechanism can be used for carrying out hot-pressing sealing on the upper film 1 and the lower film 2 in the transverse direction, and is arranged on the machine table 10 and positioned downstream of the film unreeling mechanism. The film cutting mechanism cuts the upper film 1 and the lower film 2 which are transversely sealed at the same time to form a film bag, and the film bag is arranged on the machine 10 and positioned at the downstream of the film unreeling mechanism. The lateral direction in this embodiment is a direction perpendicular to the extending direction of the conveyor belt 20.
In this embodiment, the transverse film sealing mechanism includes a transverse film sealing driving member 40, a transverse heat sealing batten 41, a transverse lower heat sealing batten 42 and a connecting rod assembly, the transverse film sealing driving member 40 is connected with the connecting rod assembly, the connecting rod assembly is connected with the transverse heat sealing batten 41 and the transverse lower heat sealing batten 42, the upper film 1 and the lower film 2 can move between the transverse heat sealing batten 41 and the transverse lower heat sealing batten 42, and the transverse film sealing driving member 40 can drive the transverse heat sealing batten 41 and the transverse lower heat sealing batten 42 to move reversely through the connecting rod assembly.
In this embodiment, as shown in fig. 4, the transverse film sealing mechanism further includes a transverse sliding seat 43, and the transverse heat seal bead 41 is connected to the transverse sliding seat 43. As shown in fig. 5, the link assembly includes a first link 44, a second link 45 and a connecting rod 46, wherein the top end of the first link 44 is rotatably connected with the transverse sliding seat 43, the bottom end of the first link is hinged with one end of the connecting rod 46, the top end of the second link 45 is rotatably connected with the transverse lower heat-seal pressing strip 42, the bottom end of the second link is hinged with the other end of the connecting rod 46, and the middle part of the connecting rod 46 is rotatably connected with the machine 10; the transverse seal film driving member 40 employs an air cylinder which is connected to a transverse lower heat seal bead 42. Specifically, when the transverse film sealing driving member 40 drives the transverse lower heat sealing pressing strip 42 to move upwards, the top end of the second connecting rod 45 moves upwards along with the transverse lower heat sealing pressing strip 42, at this time, the end, connected to the bottom end of the second connecting rod 45, of the connecting rod 46 moves upwards, and then the end, connected to the bottom end of the first connecting rod 44, of the connecting rod 45 moves downwards, drives the first connecting rod 44 to move downwards, and then pulls the transverse sliding seat 43 to move downwards until the transverse heat sealing pressing strip 41 is attached to the transverse lower heat sealing pressing strip 42, so that the attached part of the upper film 1 and the lower film 2 is sealed.
In this embodiment, as shown in fig. 6, the transverse film sealing mechanism further includes a transverse elastic member 47, and the transverse heat seal bead 41 is connected to the transverse sliding seat 43 through the transverse elastic member 47.
In this embodiment, as shown in fig. 6, the film cutting mechanism includes a transverse cutter 50, the transverse cutter 50 is fixedly connected to the transverse sliding seat 43, and the height of the transverse cutter 50 is higher than that of the transverse heat-sealing pressing strip 41. The height of the transverse cutter 50 is higher than that of the transverse heat-sealing batten 41, and when the transverse heat-sealing batten 41 moves downwards to be attached to the transverse lower heat-sealing batten 42 for heat sealing, the transverse cutter 50 is not moved to the position of the upper film 1, and the transverse elastic piece 47 is in an initial natural state; after the upper film 1 and the lower film 2 are heat-sealed by the transverse heat-seal pressing bar 41, the transverse heat-seal pressing bar 41 is continuously moved downward so that the transverse elastic member 47 is compressed, and then the transverse cutter 50 is exposed and moves downward to cut the upper film 1 and the lower film 2. The film cutting mechanism is matched with the transverse film sealing mechanism, and the design is ingenious.
In this embodiment, as shown in fig. 6, two transverse heat-sealing pressing strips 41 and two transverse sliding seats 43 are respectively provided, the two transverse sliding seats 43 are fixedly connected, the two transverse heat-sealing pressing strips 41 are arranged below the two transverse sliding seats 43 at intervals, and the transverse cutter 50 is fixedly connected between the two transverse sliding seats 43 and extends downwards; two transverse lower heat-seal pressing strips 41 are arranged, and the two transverse lower heat-seal pressing strips 41 are fixedly connected and correspond to the two transverse heat-seal pressing strips 41 one by one. Therefore, the transverse film sealing mechanism can seal the rear end of the previous film bag and the front end of the next film bag at the same time, and cut the two film bags through the transverse cutter 52, so that the film coating step is saved, and the efficiency is improved.
The left side film sealing mechanism can carry out hot-pressing sealing on the left side of the film bag, the right side film sealing mechanism can carry out hot-pressing sealing on the right side of the film bag, and the left side film sealing mechanism and the right side film sealing mechanism are respectively positioned on the left side and the right side of the transmission mechanism and are both positioned at the downstream of the film cutting mechanism.
In this embodiment, the left film sealing mechanism includes a left film sealing upper driving member 60, a left film sealing lower driving member 61, a left upper heat sealing bead 62 and a left lower heat sealing bead 63, the left film sealing upper driving member 60 is connected to the left upper heat sealing bead 62, and the left film sealing lower driving member 61 is connected to the left lower heat sealing bead 63; the right side film sealing mechanism comprises a right side film sealing upper driving piece 70, a right side film sealing lower driving piece 71, a right side upper heat sealing pressing strip 72 and a right side lower heat sealing pressing strip 73, wherein the right side film sealing upper driving piece 70 is connected with the right side upper heat sealing pressing strip 72, and the right side film sealing lower driving piece 71 is connected with the right side lower heat sealing pressing strip 73.
In this embodiment, the left side film sealing mechanism further includes a left side sliding and stretching assembly, the left side sliding and stretching assembly includes a left carriage 64, a left carriage driving member, two left sliding blocks 65, a left sliding block driving member 66 and two stretching rods 67, the left carriage driving member is in transmission connection with the left carriage 64 and can drive the left carriage 64 to move left and right, the left sliding block driving member 66 is installed on the left carriage 64 and in transmission connection with the two left sliding blocks 65, the two left sliding blocks 65 can move reversely along the length direction of the left carriage 64, the two stretching rods 67 are respectively connected with the two left sliding blocks 65, and the tail ends of the two stretching rods 67 face the transmission mechanism and can stretch into the left side of the film bag. Specifically, as shown in fig. 10, two left carriage rails 11 are disposed on the machine 10 at intervals, and the left carriage 64 extends in the length direction of the conveyor belt 20 and has two ends slidably engaged with the two left carriage rails 11. The left carriage 64 is provided with a left slide bar 641 and a left transmission rod 642 which are arranged in parallel, the left transmission rod 642 is in transmission connection with a left slide bar driving member 66, both left slide bars 65 are in sliding fit with the left slide bar 641, the left slide bar driving member 66 drives the left slide bar 641 to rotate, and the two left slide bars 65 can slide along the left slide bar 641 in opposite directions, so that the two supporting bars 67 move in opposite directions. When the backlight plate enters the film bag and moves to the position of the left film sealing mechanism, the left carriage driving piece can drive the left carriage 64 to move towards the direction close to the conveyor belt 20 until the two supporting rods 67 can extend to the outer side of the left end of the film bag, and at the moment, the two supporting rods 67 do not extend between the left upper heat sealing pressing strip 62 and the left lower heat sealing pressing strip 63, so that the sealing of the left side of the film bag is not affected; then, the left slider driving piece 66 drives the two supporting rods 67 to move towards the two end parts of the left side of the film bag so as to open and straighten the left side of the film bag; then, the left upper sealing film driving piece 60 drives the left upper sealing pressing strip 62 to move downwards, and the left lower sealing film driving piece 61 drives the left lower sealing pressing strip 63 to move upwards so as to seal the left side of the film bag.
The vacuum mechanism can vacuumize the inside of the film bag, is arranged on the same side of the machine table 10 as the right film sealing mechanism, and is provided with a vacuum suction nozzle 80, and the vacuum suction nozzle 80 can extend into the film bag and vacuumize the film bag.
In this embodiment, the vacuum mechanism further includes a right sliding and stretching assembly, the right sliding and stretching assembly includes a right carriage 81, a right carriage driving member, two right sliding blocks 82 and a right sliding block driving member 83, the right carriage driving member is in transmission connection with the right carriage 81 and can drive the right carriage 81 to move left and right, the right sliding block driving member 83 is mounted on the right carriage 81 and is in transmission connection with the two right sliding blocks 82, the two right sliding blocks 82 can move reversely along the length direction of the right carriage 81, the vacuum suction nozzles 80 are provided with two vacuum suction nozzles and are respectively connected with the two right sliding blocks 81, and the two vacuum suction nozzles 80 can move to the right side between the upper right heat-seal pressing strip 72 and the lower right heat-seal pressing strip 73 and extend into the right side of the film bag.
As shown in fig. 8 and 9, the machine 10 is provided with two right carriage rails 12 arranged at intervals, and the right carriage 81 extends in the length direction of the conveyor 20 and has two ends respectively slidably engaged with the two right carriage rails 12. The right carriage 81 is provided with a right sliding rod 811 and a right transmission rod 812 which are arranged in parallel, the right transmission rod 812 is in transmission connection with a right sliding block driving piece 83, both right sliding blocks 82 are in sliding fit with the right sliding rod 811, the right sliding block driving piece 83 drives the right sliding rod 811 to rotate, and the two right sliding blocks 82 can slide along the right sliding rod 811 in opposite directions, so that the two vacuum suction nozzles 80 can move in opposite directions. When the backlight plate enters the film bag and moves to the position of the right film sealing mechanism, the right carriage driving piece can drive the right carriage 81 to move towards the direction close to the conveyor belt 20 until the two vacuum suction nozzles 80 can extend to the outer side of the right end of the film bag, and at the moment, the two vacuum suction nozzles 80 extend between the right upper heat sealing pressing strip 72 and the right lower heat sealing pressing strip 73; then, the right slider driving member 83 drives the two vacuum suction nozzles 80 to move towards the two ends of the right side of the film bag so as to open and straighten the right side of the film bag; then, the right side upper sealing film driving member 70 drives the right side upper sealing bead 72 to move downward, and the right side lower sealing film driving member 71 drives the right side lower sealing bead 73 to move upward to seal the right side of the film bag. At this time, since the two vacuum suction nozzles 80 extend between the upper right heat-seal pressing bar 72 and the lower right heat-seal pressing bar 73, heat sealing cannot be performed at the two vacuum suction nozzles 80, after the other parts on the right side of the film bag are heat-sealed, the two vacuum suction nozzles 80 are quickly withdrawn from the film bag, and the upper right heat-seal pressing bar 72 and the lower right heat-seal pressing bar 73 can continuously perform heat-seal pressing, so that the right side of the film bag is completely sealed.
The whole working flow of the film coating device is as follows:
placing the backlight on the conveyor belt 20;
the upper film unreeling component conveys the upper film 1 to the conveyor belt 20, the lower film unreeling component conveys the lower film 2 to the conveyor belt 20, and the upper film 1 and the lower film 2 are attached to each other at the conveyor belt 20 and move to the transverse film sealing mechanism and the film cutting mechanism;
then, two transverse heat-sealing pressing strips 41 of the transverse film sealing mechanism move downwards, and two transverse lower heat-sealing pressing strips 42 move upwards to seal the transverse joint of the upper film 1 and the lower film 2 so as to form two spaced sealing ends;
the two lateral sliding seats 43 continue to move downwards to compress the lateral elastic members 47, at this time, the lateral cutters 50 expose the edges of the two sealing ends, and cut the middle of the two sealing ends, so that the rear end of the former film bag and the front end of the latter film bag are sealed, and for convenience of description, the latter film bag is taken as an example for subsequent description;
then, the backlight plate moves towards the direction of the transverse film sealing mechanism under the action of the conveyor belt 20, the front end of the film bag is sealed, the rear end of the film bag is in an open state, namely, the upper film 1 and the lower film 2 are respectively connected with the upper film roll 31 and the lower film roll 35, the backlight plate enters from the position between the upper film 1 and the lower film 2, and the backlight plate synchronously moves by pulling the upper film 1 and the lower film 2 in the moving process of the conveyor belt 20 until the upper film 1 and the lower film 2 can fully wrap the backlight plate, at the moment, the rear end of the film bag just corresponds to the transverse film sealing mechanism, the left side of the film bag corresponds to the left film sealing mechanism, and the right side of the film bag corresponds to the right film sealing mechanism;
then, two transverse heat-sealing pressing strips 41 of the transverse film sealing mechanism move downwards, and two transverse lower heat-sealing pressing strips 42 move upwards to seal the rear end of the film bag so as to form two spaced sealing ends;
the two lateral sliding seats 43 continue to move downwards so as to compress the lateral elastic members 47, at this time, the lateral cutters 50 expose the edges of the edges, and cut the middle of the two sealed ends, so that the rear end of the film bag and the front end of the film bag behind the film bag are sealed, at this time, the front end and the rear end of the film bag wrapping the backlight plate are sealed;
then, the left carriage driving piece drives the left carriage 64 to move towards the direction approaching to the conveyor belt 20, the left slider driving piece 66 drives the two supporting rods 67 to move towards the two end parts of the left side of the film bag so as to straighten the left side of the film bag, and at the moment, the two supporting rods 67 do not extend into the space between the upper left heat-seal pressing strip 62 and the lower left heat-seal pressing strip 63, so that the sealing of the left side of the film bag is not affected; then, the left upper sealing film driving piece 60 drives the left upper sealing pressing strip 62 to move downwards, and the left lower sealing film driving piece 61 drives the left lower sealing pressing strip 63 to move upwards so as to seal the left side of the film bag;
then, the right carriage driving member drives the right carriage 81 to move toward the direction approaching the conveyor belt 20 until the two vacuum suction nozzles 80 extend to the outer side of the right end of the film bag, at which time the two vacuum suction nozzles 80 extend between the right upper heat-seal bead 72 and the right lower heat-seal bead 73; then, the right slider driving member 83 drives the two vacuum suction nozzles 80 to move towards the two ends of the right side of the film bag so as to open and straighten the right side of the film bag; the right side upper sealing film driving piece 70 drives the right side upper sealing pressing strip 72 to move downwards, and the right side lower sealing film driving piece 71 drives the right side lower sealing pressing strip 73 to move upwards so as to seal the right side of the film bag. Because the two vacuum suction nozzles 80 extend into the space between the upper right heat-seal pressing strip 72 and the lower right heat-seal pressing strip 73, heat sealing cannot be performed at the two vacuum suction nozzles 80, after the other parts on the right side of the film bag are heat-sealed, the two vacuum suction nozzles 82 quickly withdraw from the film bag, and the upper right heat-seal pressing strip 72 and the lower right heat-seal pressing strip 73 can continuously perform heat-seal pressing so as to completely seal the right side of the film bag. The vacuum envelope of the backlight is completed.
The foregoing description is only illustrative of the preferred embodiments of the present utility model, and therefore should not be taken as limiting the scope of the utility model, for all changes and modifications that come within the meaning and range of equivalency of the claims and specification are therefore intended to be embraced therein.
Claims (10)
1. The utility model provides a diolame device of back light plate, back light plate carries out cladding through last film and lower film, its characterized in that: the coating device comprises:
a machine table;
the transmission mechanism is used for conveying the backlight plate and penetrates through the whole machine;
the film unreeling mechanism is arranged on the machine table and can convey the upper film and the lower film to the conveying mechanism;
the transverse film sealing mechanism can be used for carrying out hot-pressing sealing on the upper film and the lower film in the transverse direction, is arranged on the machine table and is positioned at the downstream of the film unreeling mechanism;
the film cutting mechanism is used for simultaneously cutting the upper film and the lower film which are subjected to transverse sealing to form a film bag, is arranged on the machine table and is positioned at the downstream of the film unreeling mechanism;
a left side film sealing mechanism capable of performing hot-pressing sealing on the left side of the film bag and a right side film sealing mechanism capable of performing hot-pressing sealing on the right side of the film bag, wherein the left side film sealing mechanism and the right side film sealing mechanism are respectively positioned on the left side and the right side of the transmission mechanism and are positioned at the downstream of the film cutting mechanism;
the vacuum mechanism capable of vacuumizing the inside of the film bag is arranged on the same side of the machine table as the right film sealing mechanism, and is provided with a vacuum suction nozzle which can extend into the film bag and vacuumize the film bag.
2. The apparatus for enveloping a backlight as claimed in claim 1, wherein: the transverse film sealing mechanism comprises a transverse film sealing driving piece, a transverse heat sealing pressing strip, a transverse lower heat sealing pressing strip and a connecting rod assembly, wherein the transverse film sealing driving piece is connected with the connecting rod assembly, the connecting rod assembly is connected with the transverse heat sealing pressing strip and the transverse lower heat sealing pressing strip, an upper film and a lower film can move between the transverse heat sealing pressing strip and the transverse lower heat sealing pressing strip, and the transverse film sealing driving piece can drive the transverse heat sealing pressing strip and the transverse lower heat sealing pressing strip to move reversely through the connecting rod assembly.
3. The apparatus for enveloping a backlight as claimed in claim 2, wherein: the transverse film sealing mechanism further comprises a transverse sliding seat, and the transverse heat sealing pressing strip is connected with the transverse sliding seat; the connecting rod assembly comprises a first connecting rod, a second connecting rod and a connecting rod, the top end of the first connecting rod is rotationally connected with the transverse sliding seat, the bottom end of the first connecting rod is hinged with one end of the connecting rod, the top end of the second connecting rod is rotationally connected with the transverse lower heat-seal pressing strip, the bottom end of the second connecting rod is hinged with the other end of the connecting rod, and the middle part of the connecting rod is rotationally connected with the machine table; the transverse sealing film driving piece adopts an air cylinder and is connected with a transverse lower heat sealing pressing strip.
4. A backlight assembly according to claim 3, wherein: the transverse film sealing mechanism further comprises a transverse elastic piece, and the transverse heat sealing pressing strip is connected with the transverse sliding seat through the transverse elastic piece.
5. The apparatus for enveloping a backlight as claimed in claim 4, wherein: the film cutting mechanism comprises a transverse cutter which is fixedly connected to the transverse sliding seat, and the height of the transverse cutter is higher than that of the transverse heat sealing pressing strip.
6. The apparatus for enveloping a backlight as claimed in claim 5, wherein: the two transverse heat-sealing pressing strips are fixedly connected with the two transverse sliding seats, the two transverse heat-sealing pressing strips are arranged below the two transverse sliding seats at intervals, and the transverse cutter is fixedly connected between the two transverse sliding seats and extends downwards; the two transverse lower heat-seal pressing strips are fixedly connected and correspond to each other one by one.
7. The apparatus for enveloping a backlight as claimed in claim 1, wherein: the left side film sealing mechanism comprises a left side film sealing upper driving piece, a left side film sealing lower driving piece, a left side upper heat sealing pressing strip and a left side lower heat sealing pressing strip, wherein the left side film sealing upper driving piece is connected with the left side upper heat sealing pressing strip, and the left side film sealing lower driving piece is connected with the left side lower heat sealing pressing strip; the right side seal film mechanism comprises a right side seal film upper driving piece, a right side seal film lower driving piece, a right side upper heat seal pressing strip and a right side lower heat seal pressing strip, wherein the right side seal film upper driving piece is connected with the right side upper heat seal pressing strip, and the right side seal film lower driving piece is connected with the right side lower heat seal pressing strip.
8. The apparatus for enveloping a backlight as claimed in claim 7, wherein: the left side seal membrane mechanism further comprises a left side slide support assembly, the left side slide support assembly comprises a left sliding frame, a left sliding frame driving piece, two left sliding blocks, a left sliding frame driving piece and two supporting rods, the left sliding frame driving piece is in transmission connection with the left sliding frame and can drive the left sliding frame to move left and right, the left sliding frame driving piece is installed on the left sliding frame and is in transmission connection with the two left sliding blocks, the two left sliding blocks can move reversely along the length direction of the left sliding frame, the two supporting rods are respectively connected with the two left sliding blocks, and the tail ends of the two supporting rods face the transmission mechanism and can stretch into the left side of the membrane bag.
9. The apparatus for enveloping a backlight as claimed in claim 7, wherein: the vacuum mechanism and the right side film sealing mechanism are located on the same side, the vacuum mechanism further comprises a right sliding and stretching assembly, the right sliding and stretching assembly comprises a right sliding frame, a right sliding frame driving piece, two right sliding blocks and a right sliding block driving piece, the right sliding frame driving piece is in transmission connection with the right sliding frame and can drive the right sliding frame to move left and right, the right sliding block driving piece is arranged on the right sliding frame and is in transmission connection with the two right sliding blocks, the two right sliding blocks can move reversely along the length direction of the right sliding frame, the vacuum suction nozzles are provided with two vacuum suction nozzles and are respectively connected with the two right sliding blocks, and the two vacuum suction nozzles can move to the right side between the right upper heat sealing pressing strip and the right lower heat sealing pressing strip and extend into the right side of the film bag.
10. The apparatus for enveloping a backlight as claimed in claim 1, wherein: the film unreeling mechanism comprises an upper film unreeling assembly and a lower film unreeling assembly, the upper film unreeling assembly comprises an upper film roll, an upper carrier roller, an upper winding roller and an upper guiding-out roller, the upper film roll is placed on the upper carrier roller, and the head end of the upper film extends out of the upper guiding-out roller and extends along the conveying mechanism after bypassing the upper winding roller; the lower film unreeling assembly comprises a lower film roll, a lower carrier roller, a lower winding roller and a lower guiding-out roller, wherein the lower film roll is placed on the lower carrier roller, and the head end of the lower film extends out of the lower guiding-out roller and extends along the conveying mechanism after bypassing the lower winding roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223170727.3U CN219056787U (en) | 2022-11-29 | 2022-11-29 | Film coating device of backlight plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223170727.3U CN219056787U (en) | 2022-11-29 | 2022-11-29 | Film coating device of backlight plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219056787U true CN219056787U (en) | 2023-05-23 |
Family
ID=86374142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223170727.3U Active CN219056787U (en) | 2022-11-29 | 2022-11-29 | Film coating device of backlight plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219056787U (en) |
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2022
- 2022-11-29 CN CN202223170727.3U patent/CN219056787U/en active Active
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