CN115489170B

CN115489170B - Ultrathin aluminum composite television backboard and production method thereof

Info

Publication number: CN115489170B
Application number: CN202211172830.3A
Authority: CN
Inventors: 朱秋星; 文曲; 陆晏; 朱培捷; 朱雅娟
Original assignee: Jixiang Aluminum Changxing Co ltd
Current assignee: Jixiang Aluminum Changxing Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-05-26
Anticipated expiration: 2042-09-26
Also published as: CN115489170A

Abstract

The invention discloses an ultrathin aluminum composite television backboard and a production method thereof, wherein the ultrathin aluminum composite television backboard comprises an upper layer board, a core layer board and a lower layer board, the core layer board adopts a wave-shaped structure, so that the television backboard ensures the strength requirement on the ultrathin basis, meanwhile, because the wave-shaped structure is not completely attached between the core layer board and the upper layer board or the lower layer board, a plurality of channels are arranged between the core layer board and the upper layer board or the lower layer board at intervals, the channels are beneficial to ventilation and heat dissipation, the technical problem that the existing aluminum honeycomb composite backboard does not have ventilation and heat dissipation is solved, a brand-new market is developed for the ultrathin aluminum composite television backboard, the process steps of covering a polymer adhesive film firstly and then pressing and forming a core layer blank are adopted in the process of preparing the core layer board, and the pressing and forming are not easy to damage due to the adhesive force of the polymer adhesive film on the premise of covering the polymer adhesive film, and the yield is further ensured.

Description

Ultrathin aluminum composite television backboard and production method thereof

Technical Field

The invention relates to the technical field of television backboard production, in particular to an ultrathin aluminum composite television backboard and a production method thereof.

Background

A television refers to a machine that uses an electric method to transmit optical information according to the persistence of vision and visual psychology of human eyes. With the continuous development of the technology at present, the ultrathin television has become the main stream of society, and the television body is thinner, so that the requirement on the television backboard is higher, but the heat dissipation effect and strength of the traditional television backboard are poorer.

The existing television backboard adopts an aluminum honeycomb composite board as the backboard, the aluminum honeycomb composite board is disclosed in a patent document with the patent application number of 2016100524843 and the patent name of a continuous automatic production line and a continuous production process of the aluminum honeycomb composite board, the aluminum honeycomb composite board generally comprises an upper layer board, a core board and a lower layer board, the core board is an aluminum honeycomb core layer which is stretched and unfolded, the upper layer board and the lower layer board are flat metal boards, the upper layer board, the core layer and the lower layer board are compounded through glue or other polymer adhesive films, and the aluminum honeycomb composite board has the following defects as the television backboard:

the first aluminum honeycomb core layer and the upper layer plate and the lower layer plate are coated with more glue, so that the glue is wasted, and the grooves of the aluminum honeycomb core layer cannot be contacted with the upper layer plate or the lower layer plate, for example, so that the glue is wasted;

Secondly, no ventilation channel exists among the upper layer plate, the core layer plate and the lower layer plate of the aluminum honeycomb composite plate, and the heat dissipation performance is poor;

in order to solve the technical problems, the technical pain point is always present in the production process by adopting the corrugated aluminum plate as the core layer, and the angle of the wave crest of the compression molding can be increased to influence the supporting force of the finished product because the forming roller always has a forward conveying force in the compression molding process by adopting the traditional two forming rollers due to the characteristic that the aluminum plate is very thin, and the angle of the corrugated shape of the compression molding can be inclined to one direction, as shown in fig. 14, so that the supporting force of the finished product can be influenced.

Therefore, there is a need for an ultra-thin aluminum composite television backplate and method of manufacture.

Disclosure of Invention

The invention aims to solve the technical problems and provides an ultrathin aluminum composite television backboard and a production method thereof.

The utility model provides an ultra-thin aluminium composite television backplate, top-down is in proper order including top-down plywood, sandwich panel and lower plywood, through polymer adhesive film interconnect connection between top-down plywood, the sandwich panel is wave structure, and its inside shaping has the ventilation channel that runs through both sides, polymer adhesive film is located the crest department of sandwich panel, its position height of distributing is H1, the crest height of sandwich panel is H2, and height H1 is 1/3 ~ 1/2 of height H2.

Preferably, the included angle at the crest of the core plate is 40-50 degrees.

The production process of the ultrathin aluminum composite television backboard comprises the following specific steps:

s1: preparing a core layer plate, preheating the core layer blank plate through television backboard production integrated equipment at 60-70 ℃, covering polymer adhesive films on the upper and lower surfaces of the core layer blank plate, immediately cooling and solidifying, and finally pressing and forming the core layer plate;

s2: stacking, namely taking out the upper layer plate and the lower layer plate through television backboard production integrated equipment, and sequentially stacking the upper layer plate, the core layer plate and the lower layer plate from top to bottom;

s4: heating, namely heating the upper layer plate, the core plate and the lower layer plate which are sequentially stacked in the step S2 through television backboard production integrated equipment, wherein the heating temperature is 120-150 ℃;

s5: cooling and solidifying, namely cooling and solidifying the sequentially overlapped upper layer plate, the core layer plate and the lower layer plate which are heated in the step S4 in television backboard production integrated equipment to obtain an ultrathin aluminum composite television backboard blank;

s6: and (3) finishing: and (3) trimming the ultrathin aluminum composite television backboard blank in the step (S5) to obtain the ultrathin aluminum composite television backboard.

Preferably, the television backboard production integrated equipment sequentially comprises a core layer blank feeding device, a preheating device, a double-sided laminating device, a cooling roller set, a core layer blank adsorption mechanism, a compression molding device, an upper layer board stacking area, a lower layer board stacking area, an adsorption grabbing device, a heating device and a cooling device according to the production process steps.

Preferably, the feeding device for the core layer blank comprises a feeding rack, wherein the feeding rack is provided with a core layer blank stacking rack, an intermittent push plate mechanism and an auxiliary conveying mechanism;

the core layer blank stacking frame is a frame for accommodating core layer blanks which are stacked, a pushing channel which is beneficial to pushing by the intermittent pushing plate mechanism is formed in the bottom of the core layer blank stacking frame, a discharging hole for pushing out the core layer blanks is formed in the bottom of one side of the core layer blank stacking frame, which is close to the preheating device, and the height of the discharging hole is larger than the thickness of the core layer blanks but smaller than twice the thickness of the core layer blanks;

the intermittent pushing plate mechanism comprises a driving mechanism and a pushing part, the driving mechanism comprises a rotating roller, a driving block is fixed on the rotating roller, the driving block is cylindrical, an inward concave part is formed in the cylinder, the pushing part comprises a pushing rod, the top of the pushing rod is fixed with a pushing block, the pushing block slides in a chute, the bottom of the pushing rod is hinged to a feeding frame, a reset spring is arranged on the pushing rod along the moving direction of the core layer blank, one end of the reset spring is fixed on the pushing rod, the other end of the reset spring is fixed on the feeding frame, the middle part of the pushing rod is rotationally connected with an abutting block, and the abutting block always abuts against the driving block;

The auxiliary conveying mechanism is arranged at the discharge hole and comprises a driving conveying roller and a driven conveying roller arranged above the driving conveying roller, the driving conveying roller is in belt transmission connection with the rotating roller, a rotating motor is fixed at one end of the driving conveying roller, two ends of the driven conveying roller are rotationally connected to the sliding block, the sliding block is slidably connected to the feeding frame, a guide rod is arranged below the sliding block and is fixed to the feeding frame, the sliding block is slidably sleeved on the guide rod, a second reset spring is fixed above the sliding block, and one end of the second reset spring, which is far away from the sliding block, is fixed to the feeding frame.

Preferably, the double-sided laminating device comprises symmetrically arranged supporting frames, an upper laminating roller, a lower laminating roller, a plurality of driving rollers, a driving mechanism and a cutting mechanism, wherein the upper laminating roller and the lower laminating roller are connected between the supporting frames in an up-down symmetrical rotating mode, the driving rollers are connected between the supporting frames in a rotating mode and can drive the core layer blank plate to move, the driving mechanism can drive the upper laminating roller, the lower laminating roller and the driving roller to rotate, the upper laminating roller is arranged above the upper laminating roller on the supporting frames, a guide roller is arranged between the upper laminating roller and the upper laminating roller, the lower laminating roller is arranged below the lower laminating roller on the supporting frames, the guide roller is arranged between the lower laminating roller and the lower laminating roller, and the cutting mechanism is further arranged on the supporting frames in a sliding mode and used for cutting the macromolecule adhesive films.

Preferably, the positions of the polymer adhesive films corresponding to the inner concave positions of the core plate are hollowed-out, and the hollowed-out positions of the polymer adhesive films on the upper film roll and the polymer adhesive films on the lower film roll are distributed in a staggered manner.

Preferably, the press forming device comprises a forming frame, wherein an upper die and a lower die which are matched with each other are arranged on the forming frame, the upper die is connected to the forming frame in a sliding manner, a telescopic cylinder is arranged at the top of the upper die, the upper die and the lower die are driven to be combined or separated through the telescopic cylinder, a limit conveying belt is arranged on one side of the press forming device, a pushing device is arranged on the other side of the press forming device, and a material ejection device is arranged in the lower die;

the upper die comprises an upper die seat, a plurality of die units which are sequentially clamped are symmetrically distributed in the upper die seat in a central mode, the die units comprise a central die unit positioned in the center and side die units which are symmetrically distributed on two sides of the central die unit in a clamping mode, rectangular clamping blocks which are outwards protruded are formed above the two sides of the central die unit, rectangular side concave grooves matched with the clamping blocks are formed on one side of the side die units positioned on the two sides of the central die unit, rectangular side clamping blocks which are outwards protruded are formed above the other side of the side concave grooves, the side clamping blocks are used for clamping the side concave grooves of the next side die unit adjacent to the side clamping blocks, the side clamping blocks of the next side die unit are clamped with the side concave grooves of the next side die unit in a clamping mode, a plurality of side die units are sequentially clamped in a mode, a rectangular cavity is formed above the inner side wall of the upper die seat, the clamping grooves are matched with the side clamping blocks, the side clamping blocks are used for clamping the two side die units which are outwards protruded, the lengths of the side clamping blocks are equal to the two side die units which are distributed from the center to the bottom of the die units, and the two sides of the die units are gradually protruded from the center to the bottom of the die units;

The lower die comprises a lower die base, positioning columns are fixed on the periphery of the upper surface of the lower die base, technological grooves matched with the lower die base are formed in the periphery of the core layer blank, the accurate positioning of the core layer blank to be pressed and formed is achieved through the mutual matching of the positioning columns and the technological grooves, the middle of the upper surface of the lower die base is a lower die body distributed in a wave shape, the lower die body comprises a plurality of arc grooves matched with a die unit, the arc grooves comprise a central portion located at the center, the central portion can move up and down in the arc grooves under the driving of a jacking device, the jacking device comprises a telescopic push rod, sliding columns which are transversely arranged are fixed at the movable ends of the telescopic push rod, racks are arranged on the upper surfaces of the sliding columns at intervals, first driven gears are meshed with each other, fixing rods are fixed on the first driven gears, second driven gears are meshed with support rods which are longitudinally arranged, and the top portions of the support rods are fixedly arranged in the central portion, and the bottom portions of the support rods are sleeved in the support seats.

Preferably, the cooling device comprises a cooling rack, a lifting cylinder is fixed at the top of the cooling rack, a pressing plate is fixed at the movable end of the lifting cylinder, the size and shape of the pressing plate are adapted to the ultrathin aluminum composite television backboard blank to be prepared, a plurality of air blowing openings which are distributed at intervals are further arranged on two sides of the cooling rack, and the positions of the air blowing openings are adapted to the ultrathin aluminum composite television backboard blank to be prepared.

Preferably, the preheating device comprises a conveying belt and a heating box, wherein the conveying belt is used for conveying a core blank, the conveying belt is in butt joint with the core blank feeding device, limit baffles are arranged on two sides above the conveying belt, one ends, close to the core blank feeding device, of the limit baffles are outwards bent, conveying rollers are arranged between the core blank adsorption mechanism and the double-sided laminating device and used for transitional conveying of the core blank, an upper layer plate stacking area and a lower layer plate stacking area are located at the conveying starting end of the limit conveying belt, the upper layer plate stacking area is a storage frame used for stacking and placing upper layer plates, the lower layer plate stacking area is a storage frame used for stacking and placing lower layer plates, and the limit conveying belt comprises two limit plates vertically fixed on the conveying direction, and the distance between the limit plates is matched with a television backboard blank to be prepared.

The invention has the beneficial effects that:

(1) The invention discloses an ultrathin aluminum composite television backboard, which comprises an upper layer board, a core board and a lower layer board, wherein the core board adopts a wave-shaped structure, so that the television backboard can ensure the strength requirement on the basis of ultrathin, meanwhile, as the wave-shaped structure is not completely attached between the core board and the upper layer board or the lower layer board, a plurality of channels are arranged at intervals, the channels are beneficial to ventilation and heat dissipation, the technical problem that the existing aluminum honeycomb composite backboard does not have ventilation and heat dissipation is solved, and a brand-new market is developed for the ultrathin aluminum composite television backboard.

(2) The invention discloses an ultrathin aluminum composite television backboard, which adopts a hollowed-out polymer adhesive film and has the following advantages:

first: the consumption of the polymer adhesive film is saved, and unnecessary waste is avoided;

second,: if the macromolecule adhesive film is complete and has no hollowed-out, the macromolecule adhesive film also exists in the middle concave part, the macromolecule adhesive film at the middle part has no function, the size of a ventilation channel is reduced, the heat dissipation effect is influenced, if the thinner macromolecule adhesive film is adopted to reduce the influence on the ventilation channel, the adhesive force of the macromolecule adhesive film is influenced, and the hollowed-out macromolecule adhesive film effectively solves the technical problems and ensures the performance of products;

third,: if the traditional polymer adhesive film is covered, the polymer adhesive film is broken in the downward pressing process of the die unit, and part of the polymer adhesive film can be adhered to the die unit for a long time, so that the subsequent pressing forming effect is affected, the stability of equipment is ensured, and continuous production is facilitated.

(3) The invention discloses a production process of an ultrathin aluminum composite television backboard, which adopts the process steps of coating a polymer adhesive film firstly and then carrying out compression molding on a core layer blank in the process of preparing a core layer board, wherein the adopted core layer blank is thin for realizing the ultrathin technical effect, cracks are easy to generate in the process of carrying out compression molding on the core layer blank, and the core layer blank is difficult to damage due to the adhesive force of the polymer adhesive film on the premise of coating the polymer adhesive film, so that the yield is further ensured.

(4) The invention discloses a production process of an ultrathin aluminum composite television backboard, which comprises television backboard production integrated equipment, wherein the television backboard production integrated equipment comprises a core layer slab feeding device, the core layer slab feeding device is used for realizing an automatic feeding procedure of a core layer slab, the working efficiency is effectively improved, the labor intensity is reduced, meanwhile, the thickness dimension of the core layer slab can be better adapted through the cooperation of an auxiliary conveying mechanism, the output core layer slab can be limited, and the running stability of the equipment is ensured.

(5) The invention discloses a production process of an ultrathin aluminum composite television backboard, which comprises television backboard production integrated equipment, wherein the television backboard production integrated equipment comprises an upper die and a lower die which are matched with each other, and a core layer blank is gradually pressed and formed from the center to the two sides through the upper die, so that the core layer blank is gradually stressed and extended to deform in the deformation process, the technical effect of one-step forming is realized, the finished product rate of the core layer blank is better protected, the working efficiency is improved, the waste of raw materials is avoided, the ultrathin characteristic of the core layer blank is very low if the core layer blank is directly punched through a traditional die, a large amount of raw materials are caused, and the die rollers have forward traction force in the rotary pressing process if the traditional die rollers are adopted, and the formed wave structure is pulled to be inclined in a large and pushing direction under the forward action due to the ultrathin characteristic of the core layer blank, so that the supporting force of the finished product is influenced, namely the prior art is well solved.

(6) The invention discloses a production process of an ultrathin aluminum composite television backboard, which comprises television backboard production integrated equipment, wherein a lower die of the television backboard production integrated equipment comprises a jacking device, the jacking device is used for realizing automatic blanking, and the jacking device is matched with an adsorption grabbing device to be used for automatically stacking an upper layer board, a core board and a lower layer board, so that the working efficiency is greatly improved.

(7) The invention discloses a production process of an ultrathin aluminum composite television backboard, which comprises television backboard production integrated equipment, wherein the television backboard production integrated equipment comprises a cooling device, the cooling device comprises a pressing plate and a plurality of air blowing openings which are distributed at intervals, a certain pressure is applied to the television backboard to be bonded and solidified through the pressing plate, so that the television backboard is bonded better, and because the television backboard has the characteristics of a plurality of ventilation channels, air is blown into the ventilation channels by adopting the air blowing openings for rapid and uniform cooling, and the production process is efficient and ingenious.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an ultrathin aluminum composite television backboard according to the invention;

FIG. 2 is an enlarged schematic view of the polymer adhesive film coated on the core plate of the present invention;

FIG. 3 is a schematic view of a portion of a polymeric adhesive film according to the present invention;

FIG. 4 is a schematic diagram of a three-dimensional structure of an integrated television backboard production apparatus according to the present invention;

FIG. 5 is an angular perspective view of the core blank loading apparatus of the present invention;

FIG. 6 is another angular perspective view of the core blank loading apparatus of the present invention;

FIG. 7 is a schematic view of the internal structure of the core blank feeding device of the present invention;

FIG. 8 is a schematic view of a portion of an integrated apparatus for producing a television back plate according to the present invention;

FIG. 9 is a schematic perspective view of a press molding apparatus according to the present invention;

FIG. 10 is a front elevational view of the upper die press of the present invention;

FIG. 11 is a front view of the upper die press state of the present invention;

FIG. 12 is a perspective view of the lower mold of the present invention;

FIG. 13 is a schematic view of a part of the structure of the ejector of the present invention;

fig. 14 is a schematic view showing a portion of the structure of a core plate after being pressed by a conventional forming roll of the present invention.

FIG. 15 is a schematic view of a portion of the structure of the present invention with the upper die depressed;

FIG. 16 is an enlarged view of a portion of a conventional forming die of the present invention in which a plurality of forming die heads are simultaneously stamped;

Fig. 17 is a schematic view of the cooling device of the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.

The invention discloses an ultrathin aluminum composite television backboard, which is shown in a figure 1, and sequentially comprises an upper layer board 1, a core layer board 2 and a lower layer board 3 from top to bottom, wherein the upper layer board 1, the core layer board 2 and the lower layer board 3 are mutually bonded and connected through a polymer bonding film 4, the core layer board 2 is of a wave-shaped structure, the polymer bonding film 4 is positioned at the wave crest of the core layer board 2, the distributed position height of the core layer board 2 is H1, the wave crest height of the core layer board 2 is H2, the height H1 is 1/3-1/2 of the height H2, the position distribution of the polymer bonding film 4 not only saves the consumption of the polymer bonding film, but also does not have any influence on a ventilation channel, the included angle at the wave crest of the core layer board 2 is between 40 degrees and 50 degrees, and the core layer board 2 of the ultrathin aluminum composite television backboard is of a wave-shaped structure, so that the ultrathin television is ensured on the basis of the ultrathin television, and meanwhile, the structure of the core layer board 2 and the upper layer board 2 and the lower layer board 3 are not completely bonded with the ventilation channel are not easy, the ventilation channel is formed, and the ventilation channel is not easy to be prolonged, and the ventilation channel is greatly prolonged.

s1: preparing a core plate 2, preheating the core plate blank by using television backboard production integrated equipment at the temperature of 60-70 ℃, covering polymer adhesive films on the upper and lower surfaces of the core plate blank, immediately cooling and solidifying, and finally pressing and forming the core plate 2;

s2: stacking, namely taking out the upper layer plate 1 and the lower layer plate 3 through television backboard production integrated equipment, and sequentially stacking the upper layer plate 1, the core layer plate 2 and the lower layer plate 3 from top to bottom;

s4: heating, namely heating the upper layer plate 1, the core layer plate 2 and the lower layer plate 3 which are sequentially stacked in the step S2 through television backboard production integrated equipment, wherein the heating temperature is 120-150 ℃;

s5: cooling and solidifying, namely cooling and solidifying the upper layer plate 1, the core layer plate 2 and the lower layer plate 3 which are heated in the step S4 and are sequentially overlapped in television backboard production integrated equipment to obtain an ultrathin aluminum composite television backboard blank;

Specifically, in step S1, the upper and lower surfaces of the core blank are covered with polymer adhesive films 4, where the polymer adhesive films 4 are conventional products in the field, and the polymer adhesive films 4 are also referred to as polymer films or polymer casting films, are thermoplastic adhesive materials containing no harmful substances such as solvent, formaldehyde, benzene, toluene, etc., and 100% of solid content, are solid at normal temperature, and have no viscosity, and the package form is coiled materials, and the polymer adhesive films 4 have viscosity only after being melted by heating, and then achieve adhesion between various substances under a certain pressure. As shown in fig. 2, in order to make the polymer adhesive film 4 cover the bonding connection between the crest of the core plate 2 and the upper plate 1 or the lower plate 3, but not cover the polymer adhesive film in the inner concave of the core plate 2, the position of the polymer adhesive film corresponding to the inner concave of the core plate 2 is hollowed, and the crest of the core plate 2 corresponding to the upper plate 1 is just the concave of the lower plate 3, so the polymer adhesive film 4 attached to the upper surface of the core plate 2 and the hollowed-out position of the polymer adhesive film 4 attached to the lower surface of the core plate 2 are distributed in a staggered way, the invention has the following advantages that the hollowed-out polymer adhesive film 4 is adopted:

First: the consumption of the polymer adhesive film 4 is saved, and unnecessary waste is avoided;

second,: if the polymer adhesive film 4 is complete and has no hollowed-out structure, the polymer adhesive film 4 is also arranged in the middle concave part, the polymer adhesive film 4 at the middle part has no function, the size of a ventilation channel is reduced, the heat dissipation effect is influenced, if the thinner polymer adhesive film 4 is adopted to reduce the influence on the ventilation channel, the adhesive force of the polymer adhesive film 4 is influenced, and the hollowed-out polymer adhesive film 4 effectively solves the technical problems;

third,: if the conventional polymer adhesive film 4 is covered, the polymer adhesive film 4 will be broken in the process of pressing down the die unit, so that part of the polymer adhesive film 4 will be adhered to the die unit for a long time, and the subsequent pressing effect is affected.

Specifically, in the process of preparing the core plate 2 in the step S1, the process steps of covering the polymer adhesive film 4 and then performing compression molding on the core blank are adopted, because the core blank adopted for achieving the ultrathin technical effect is necessarily thin, cracks are easy to generate in the process of performing compression molding on the core blank, and the pressed point is not easy to damage due to the adhesive force of the polymer adhesive film 4 on the premise of covering the polymer adhesive film 4.

Specifically, the television backboard production integrated equipment sequentially comprises a core layer blank feeding device a1, a preheating device a2, a double-sided film coating device a3, a cooling roller set a9, a core layer blank adsorption mechanism a10, a compression molding device a4, an upper layer board stacking area a5, a lower layer board stacking area a6, an adsorption grabbing device, a heating device a7 and a cooling device a8 according to the production process steps, wherein the core layer blank feeding device a1 is used for realizing the feeding of core layer blanks one by one, the core layer blanks after feeding are preheated by the preheating device a2, then immediately subjected to double-sided film coating by the double-sided film coating device a3, and immediately subjected to cooling and solidification by the cooling roller set a9, then the core blank plate is grabbed by a core blank plate adsorption mechanism a10 and is placed on a compression molding device a4 for compression molding, a lower plate 3 in a lower plate stacking area a6 is placed on the bottommost layer of a limiting conveying belt by an adsorption grabbing device, the core plate 2 subjected to compression molding realizes automatic blanking under the driving of a jacking device and is positioned above the lower plate 3, finally, an upper plate 1 in an upper plate stacking area a5 is stacked by the adsorption grabbing device and then enters a heating device a7 for heating, so that a polymer adhesive film 4 is softened, and finally enters a cooling device a8 for rapid cooling, bonding and curing.

Specifically, the core slab feeding device a1 comprises a feeding rack, wherein the feeding rack is provided with a core slab stacking rack a11, an intermittent push plate mechanism a12 and an auxiliary conveying mechanism a13;

the core layer blank stacking frame a11 is a frame for accommodating core layer blanks placed in a stacked mode, a pushing channel which is beneficial to pushing by the intermittent pushing plate mechanism a12 is formed in the bottom of the core layer blank stacking frame, a discharging hole for pushing out the core layer blanks is formed in the bottom of one side of the core layer blank stacking frame, which is close to the preheating device a2, and the height of the discharging hole is larger than the thickness of the core layer blanks but smaller than twice the thickness of the core layer blanks, so that only one core layer blank can be pushed out, and normal operation of equipment is guaranteed;

the intermittent push plate mechanism a12 comprises a driving mechanism and a pushing part, the driving mechanism comprises a rotating roller, a driving block a121 is fixed on the rotating roller, the driving block a121 is cylindrical, an inward concave part is formed in the cylinder, the pushing part comprises a pushing rod, a pushing block a123 is fixed at the top of the pushing rod, the pushing block a123 slides in a chute, the bottom of the pushing rod is hinged to a feeding frame, a reset spring a122 is arranged on the pushing rod along the moving direction of a core layer blank, one end of the reset spring a122 is fixed on the pushing rod, the other end of the reset spring a is fixed on the feeding frame, the middle part of the pushing rod is rotationally connected with an abutting block a124, and the abutting block a124 always abuts against the driving block a 121;

The auxiliary conveying mechanism a13 is arranged at the discharge hole and comprises a driving conveying roller a131 and a driven conveying roller a132 positioned above the driving conveying roller a131, the driving conveying roller a131 is in belt transmission connection with the rotating roller, one end of the driving conveying roller a131 is fixedly provided with a rotating motor, the driven conveying roller a132 is an automatic up-down adjusting mechanism, two ends of the driven conveying roller a132 are rotatably connected to a sliding block, the sliding block is slidably connected to a feeding frame, a guide rod is arranged below the sliding block and is fixed on the feeding frame, the sliding block is slidably sleeved on the guide rod, a second reset spring is fixed above the sliding block, one end of the second reset spring, which is far away from the sliding block, is fixed on the feeding frame, and the driven conveying roller a132 is an automatic up-down adjusting mechanism which can be better adapted to the thickness dimension of a core layer blank plate and can limit the output core layer blank plate;

the specific operation process comprises the following steps: when the driving block a121 rotates to the concave position of the driving block a to be abutted against the abutting block a124, the pushing rod moves towards the direction of the discharge hole under the elastic tension of the reset spring a122, so that the pushing block a123 pushes out the bottommost core layer blank, and the core layer blank is driven by the auxiliary conveying mechanism a13 to move forwards after being pushed out.

Specifically, preheating device a2 is including conveyer belt and the heating cabinet that is used for carrying the sandwich layer blank, the temperature of heating cabinet heating is 60 ~ 70 ℃, the heating cabinet is the conventional equipment in this field, so add not much more description, the conveyer belt with sandwich layer blank loading attachment a1 dock, conveyer belt top both sides are equipped with limit baffle, limit baffle is close to the one end of sandwich layer blank loading attachment a1 is outside crooked form to do benefit to the entering of the sandwich layer blank that comes out from sandwich layer blank loading attachment a 1.

Specifically, the double-sided laminating device a3 comprises symmetrically arranged supporting frames, an upper laminating roller a31 and a lower laminating roller a32 which are connected between the supporting frames in an up-down symmetrical rotation mode, a plurality of driving rollers a33 which are connected between the supporting frames in a rotation mode and can drive the core blank to move, and a driving mechanism which can drive the upper laminating roller a31, the lower laminating roller a32 and the driving rollers a33 to rotate, wherein an upper film roller a34 is arranged above the upper laminating roller a31 on the supporting frames, a guide roller is arranged between the upper film roller a34 and the upper laminating roller a31, a lower film roller a35 is arranged below the lower laminating roller a32 on the supporting frames, a guide roller is arranged between the lower laminating roller a32 and the lower film roller a35, and a cutting mechanism which is connected in a sliding mode before the supporting frames is further arranged on the supporting frames and used for cutting the polymer adhesive film 4, and the double-sided laminating device a3 is conventional equipment in the field, and is not repeated.

Specifically, the cooling roller set a9 is used for cooling, so that the polymer adhesive film is cooled and solidified, and the cooling roller set is composed of two cooling rollers, and the cooling rollers are conventional equipment in the field, so that redundant description is omitted.

Specifically, the core blank adsorption mechanism a10 is an adsorption manipulator, which is conventional equipment in the art, so that redundant description is not needed, a transmission roller is arranged between the core blank adsorption mechanism a10 and the double-sided laminating device a3 and is used for transitional conveying of the core blank, and the core blank after double-sided laminating is placed in the compression molding device a4 through the core blank adsorption mechanism a 10.

Specifically, the compression molding device a4 comprises a molding frame, an upper die and a lower die a46 which are matched with each other are arranged on the molding frame, the upper die is slidably connected to the molding frame, a telescopic cylinder is arranged at the top of the upper die, the upper die and the lower die a46 are driven to be combined or separated through the telescopic cylinder, a limit conveying belt a43 is arranged on one side of the compression molding device a4, a pushing device a44 is arranged on the other side of the compression molding device a4, a material jacking device a45 is arranged in the lower die, a core layer blank plate formed by compression molding is jacked up through the material jacking device, and the core layer blank plate is pushed into the limit conveying belt a43 through the pushing device a44 to carry out the next procedure for realizing the technical effect of automatic blanking.

The upper die comprises an upper die seat a41, a plurality of die units which are sequentially clamped are symmetrically distributed in the upper die seat a41 in a central mode, each die unit comprises a central die unit a42 positioned at the center and side die units which are symmetrically distributed on two sides of the central die unit and are sequentially clamped, rectangular clamping blocks which are outwards protruded are formed above two sides of the central die unit, rectangular side grooves matched with the clamping blocks are formed on one side of the side die units positioned on two sides of the central die unit, the side grooves penetrate through the top of the side grooves, rectangular side clamping blocks which are outwards protruded are formed above the other side of the side grooves, the side clamping blocks are used for clamping the side grooves of the next side die unit adjacent to the side clamping blocks, the side clamping blocks of the next side die unit are clamped with the side grooves of the next side die unit, and the like, the upper die seat a41 is internally provided with a cuboid cavity, a clamping groove is formed above the inner side wall of the upper die seat a41, the clamping groove is matched with a side clamping block, the side clamping blocks are used for clamping two side die units at the outermost side, a plurality of die units are clamped in the upper die seat a41, the lengths of the die units are equal, the center die unit is distributed at the lowest position, the distribution positions of the side die units are gradually raised from the center to the two sides, the bottom of the die unit is of an outwards-raised arc structure, when the upper die is driven by a telescopic cylinder to move downwards in the compression molding process, the center die unit a42 is firstly contacted with a core layer blank, the core layer blank is firstly pressed downwards along with the continuous downward movement of the upper die due to the action of gravity, then the core layer blank is gradually pressed downwards by the side die units from the center to the two sides, and thus compression molding is realized, the core blank is gradually pressed and formed from the center to two sides through the upper die, so that the core blank is gradually stressed and extends to deform in the deformation process, the technical effect of one-step forming is achieved, meanwhile, the forming yield of the core blank is better protected, due to the ultrathin characteristic of the core blank, if the core blank is punched through the conventional die directly through a plurality of forming die heads, the core blank is easily broken through, as shown in fig. 16, the core blank between the two forming die heads is subjected to the pulling force of two directions F, the core blank is broken through, the yield is extremely low, a large amount of raw materials are caused, the pressing forming device a4 well solves the technical problem, meanwhile, the traditional pressing mode of forming waves is also realized through the mutual cooperation of the two die rollers, but the die rollers have a forward pulling force in the rotary pressing process, and due to the ultrathin characteristic of the core blank, the formed wave structure is pulled by a large pushing angle under the forward pulling force and is pulled towards the supporting force of the ultrathin core blank, the product is greatly influenced, the product quality is greatly influenced, and the product quality is greatly improved.

The lower die comprises a lower die base, a positioning column a462 is fixed on the periphery of the upper surface of the lower die base, a matched technological groove is formed in the periphery of the core layer blank, as shown in fig. 12, the positioning column a462 and the technological groove are matched with each other to achieve accurate positioning of the core layer blank to be pressed and formed, the middle part of the upper surface of the lower die base is a lower die body distributed in a wavy shape, the lower die body comprises a plurality of arc grooves matched with a die unit, the arc grooves comprise a central part a461 positioned in the center, the central part a461 can move up and down in the arc grooves under the driving of a jacking device a45, the jacking device a45 comprises a telescopic push rod a451, a sliding column which is transversely arranged is fixed at the movable end of the telescopic push rod a451, racks are arranged on the upper surface of the sliding column at intervals, a first driven gear a452 is meshed with the upper surface of the sliding column, a fixed rod is fixed on the first driven gear a452, a second driven gear a is fixed at the other end of the fixed rod, the second driven gear a is meshed with the second driven gear a453 a is driven gear 453 a, and the second driven gear a is driven a is rotatably arranged in the sliding seat of the sliding column a453 a, and the second driven gear a is rotatably slides in the sliding seat a sliding seat 453 a and is arranged in the sliding column a sliding seat. The pushing device a44 comprises a pushing telescopic push rod and a pushing plate fixed on the pushing telescopic push rod, when the pushing device a45 drives the central part a461 to move upwards, the central part a61 pushes up the formed core layer blank pressed in the lower die, and the pushed core layer blank is pushed to the limiting conveying belt a43 by the cooperation of the pushing device a44, so that automatic blanking is realized.

Specifically, an auxiliary sliding plate which is inclined towards the direction of the limiting conveyer belt a43 is fixed on one side of the forming frame, which is close to the limiting conveyer belt a43, and is used for matching with the blanking procedure of the core layer blank.

Specifically, the upper layer plate stacking area a5 and the lower layer plate stacking area a6 are located at the conveying starting end of the limiting conveying belt a43, the lower layer plate 3 is placed in the limiting conveying belt a43 through an adsorption grabbing device, the core plate 2 formed by compression is pushed down through a pushing device a44, the upper layer plate 1 is placed above the core plate 2 through the adsorption grabbing device, the upper layer plate stacking area a5 is a placement frame for stacking and placing the upper layer plate, the lower layer plate stacking area a6 is a placement frame for stacking and placing the lower layer plate, and the adsorption grabbing device is a conventional device in the field, so that redundant description is omitted.

Specifically, the limiting conveyer belt a43 comprises two limiting plates vertically fixed in the conveying direction, and an outwards-opened arc structure is arranged above the limiting plates, so that blanking is facilitated.

Specifically, the heating device a7 is a heating box, which is conventional in the art, and therefore a description thereof will not be repeated. The heating temperature is 120-150 ℃ and is used for meeting the process requirements.

Specifically, cooling device a8 is including cooling frame, cooling frame's top is fixed with the lift cylinder, the expansion end of lift cylinder is fixed with clamp plate a82, the size shape of clamp plate suits with the ultra-thin aluminium compound television backplate of wanting to prepare, cooling frame's both sides still are equipped with a plurality of interval distribution's blast gate a81, blast gate a81 is linked together with the fan, the blast gate is located spacing conveyer belt a 43's direction of delivery both sides, and the height of distribution suits with the height of the board that is located three stacks on the spacing conveyer belt a43, blows in the ventilation channel of the ultra-thin aluminium compound television backplate of wanting to prepare through the blast gate with wind, carries out quick even cooling.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The production process of the ultrathin aluminum composite television backboard is characterized by comprising the following steps of: the method comprises the following specific steps:

S1: preparing a core layer plate (2), preheating the core layer blank plate through television backboard production integrated equipment at the temperature of 60-70 ℃, covering polymer adhesive films on the upper and lower surfaces of the core layer blank plate, immediately cooling and solidifying, and finally pressing and forming the core layer plate (2);

s2: stacking, namely taking out the upper layer plate (1) and the lower layer plate (3) through television backboard production integrated equipment, and sequentially stacking the upper layer plate (1), the core layer plate (2) and the lower layer plate (3) from top to bottom;

s4: heating, namely heating the upper layer plate (1), the core layer plate (2) and the lower layer plate (3) which are sequentially stacked in the step S2 through television backboard production integrated equipment, wherein the heating temperature is 120-150 ℃;

s5: cooling and solidifying, namely cooling and solidifying the upper layer plate (1), the core layer plate (2) and the lower layer plate (3) which are heated in the step S4 and are sequentially overlapped in television backboard production integrated equipment to obtain an ultrathin aluminum composite television backboard blank;

s6: and (3) finishing: trimming the ultrathin aluminum composite television backboard blank in the step S5 to obtain an ultrathin aluminum composite television backboard;

the ultrathin aluminum composite television backboard sequentially comprises an upper board (1), a core board (2) and a lower board (3) from top to bottom, wherein the upper board (1), the core board (2) and the lower board (3) are mutually bonded and connected through a high polymer adhesive film (4), the core board (2) is of a wave-shaped structure, ventilation channels penetrating through two sides are formed in the core board (2), the high polymer adhesive film (4) is located at the wave crest of the core board (2), the distributed position height of the high polymer adhesive film is H1, the peak height of the core board (2) is H2, the height H1 is 1/3-1/2 of the height H2, the included angle at the wave crest of the core board (2) is A, and the angle of A is 40-50 degrees;

The television backboard production integrated equipment in the step S1 sequentially comprises a core layer board feeding device (a 1), a preheating device (a 2), a double-sided film laminating device (a 3), a cooling roller set (a 9), a core layer board adsorption mechanism (a 10), a compression molding device (a 4), an upper layer board stacking area (a 5), a lower layer board stacking area (a 6), an adsorption grabbing device, a heating device (a 7) and a cooling device (a 8) according to the production process steps;

the compression molding device (a 4) comprises a molding frame, an upper die and a lower die (a 46) which are matched with each other are arranged on the molding frame, the upper die is connected to the molding frame in a sliding manner, a telescopic cylinder is arranged at the top of the upper die, the upper die and the lower die (a 46) are driven to be combined or separated through the telescopic cylinder, a limit conveying belt (a 43) is arranged on one side of the compression molding device (a 4), a pushing device (a 44) is arranged on the other side of the compression molding device, and a material ejection device (a 45) is arranged in the lower die;

the upper die comprises an upper die seat (a 41), a plurality of die units which are sequentially clamped are symmetrically distributed in the upper die seat (a 41) in a central mode, the die units comprise a central die unit (a 42) positioned at the center and side die units which are symmetrically distributed on two sides of the central die unit in a clamping mode, rectangular clamping blocks which are outwards convex are formed above two sides of the central die unit, rectangular side concave grooves matched with the clamping blocks are formed on one side of the side die units positioned on two sides of the central die unit, the side concave grooves penetrate through the top of the side concave grooves, rectangular side clamping blocks which are outwards convex are formed above the other side of the side concave grooves, the side clamping blocks are used for clamping the side concave grooves of the next side die unit adjacent to the side concave grooves, the side clamping blocks of the next side die unit are sequentially clamped with the side concave grooves of the next side die unit, rectangular clamping blocks are formed above the inner side wall of the central die unit, the side clamping grooves are formed on the side clamping blocks, the side clamping blocks are gradually matched with the two sides of the side die units, and the lengths of the side clamping blocks are equal to the lengths of the two sides of the side die units, and the two side clamping blocks are gradually distributed from the bottom of the two sides of the die units to the center unit;

The lower die (a 46) comprises a lower die base, positioning columns (a 462) are fixed on the periphery of the upper surface of the lower die base, process grooves matched with the positioning columns (a 462) are formed in the periphery of the core layer blank, the accurate positioning of the core layer blank to be pressed and formed is realized through the mutual matching of the positioning columns (a 462) and the process grooves, the middle part of the upper surface of the lower die base is a lower die body distributed in a wavy shape, the lower die body comprises a plurality of arc grooves matched with a die unit, the arc grooves comprise a central part (a 461) positioned in the center, the central part (a 461) can move up and down in the arc grooves under the driving of a jacking device (a 45), the jacking device (a 45) comprises telescopic pushing rods (a 451), sliding columns which are transversely arranged are fixed at the ends of the telescopic pushing rods (a 451), the upper surface of the sliding columns is provided with first driven gears (a 452) in a spaced mode, fixed on the first driven gears (a 452), fixed on the fixed rods are arranged at the other ends of the first driven gears (a 453), second driven gears (a 453) are arranged in a longitudinally sleeved mode, and the second driven gears (a 454 a) are arranged in the fixed support seat (a) and are arranged at the bottom part (a) of the fixed support seat) of the movable support rod (a 453);

The core layer blank feeding device (a 1) comprises a feeding rack, wherein a core layer blank stacking rack (a 11), an intermittent push plate mechanism (a 12) and an auxiliary conveying mechanism (a 13) are arranged on the feeding rack;

the core layer blank stacking frame (a 11) is a frame for accommodating core layer blanks placed in a stacked mode, a pushing channel which is beneficial to pushing of the intermittent pushing plate mechanism (a 12) is formed in the bottom of the core layer blank stacking frame, a discharging hole used for pushing out the core layer blanks is formed in the bottom of one side of the core layer blank stacking frame, which is close to the preheating device (a 2), and the height of the discharging hole is larger than the thickness of the core layer blanks but smaller than twice the thickness of the core layer blanks;

the intermittent pushing plate mechanism (a 12) comprises a driving mechanism and a pushing part, the driving mechanism comprises a rotating roller, a driving block (a 121) is fixed on the rotating roller, the driving block (a 121) is in a cylinder shape, an inward concave part is formed in the cylinder, the pushing part comprises a pushing rod, a pushing block (a 123) is fixed at the top of the pushing rod, the pushing block (a 123) slides in a sliding groove, the bottom of the pushing rod is hinged to a feeding frame, a reset spring (a 122) is arranged on the pushing rod along the moving direction of a core layer blank plate, one end of the reset spring (a 122) is fixed on the pushing rod, the other end of the reset spring is fixed on the feeding frame, the middle part of the pushing rod is rotationally connected with an abutting block (a 124), and the abutting block (a 124) always abuts against the driving block (a 121);

The auxiliary conveying mechanism (a 13) is arranged at the discharge hole and comprises a driving conveying roller (a 131) and a driven conveying roller (a 132) arranged above the driving conveying roller (a 131), the driving conveying roller (a 131) is in belt transmission connection with the rotating roller, a rotating motor is fixed at one end of the driving conveying roller (a 131), two ends of the driven conveying roller (a 132) are rotatably connected to a sliding block, the sliding block is slidably connected to a feeding frame, a guide rod is arranged below the sliding block and is fixed on the feeding frame, the sliding block is slidably sleeved on the guide rod, a second reset spring is fixed above the sliding block, and one end of the second reset spring, which is far away from the sliding block, is fixed on the feeding frame;

the cooling device (a 8) comprises a cooling rack, a lifting cylinder is fixed at the top of the cooling rack, a pressing plate (a 82) is fixed at the movable end of the lifting cylinder, the size and shape of the pressing plate (a 82) are matched with those of an ultrathin aluminum composite television backboard blank to be prepared, a plurality of air blowing openings (a 81) which are distributed at intervals are further arranged on two sides of the cooling rack, and the positions of the air blowing openings (a 81) are matched with those of the ultrathin aluminum composite television backboard blank to be prepared.

2. The process for producing the ultrathin aluminum composite television backboard according to claim 1, wherein the process comprises the following steps: the double-sided laminating device (a 3) comprises symmetrically arranged supporting frames, an upper laminating roller (a 31) and a lower laminating roller (a 32) which are connected between the supporting frames in an up-down symmetrical rotating mode, a plurality of driving rollers (a 33) which are connected between the supporting frames in a rotating mode and can drive a core layer blank plate to move, and a driving mechanism capable of driving the upper laminating roller (a 31), the lower laminating roller (a 32) and the driving rollers (a 33) to rotate, an upper film roller (a 34) is arranged above the upper laminating roller (a 31) on the supporting frames, a guide roller is arranged between the upper film roller (a 34) and the upper laminating roller (a 31), a lower film roller (a 35) is arranged below the lower laminating roller (a 32) on the supporting frames, and a cutting mechanism which is connected between the supporting frames in a sliding mode is further arranged on the supporting frames and used for cutting macromolecule adhesive films (4).

3. The process for producing the ultrathin aluminum composite television backboard according to claim 1, wherein the process comprises the following steps: the positions of the polymer adhesive films (4) corresponding to the inner concave positions of the core plate (2) are hollowed-out, and the hollowed-out positions of the polymer adhesive films (4) on the upper film roll (a 34) and the polymer adhesive films (4) on the lower film roll (a 35) are distributed in a staggered mode.

4. The process for producing the ultrathin aluminum composite television backboard according to claim 1, wherein the process comprises the following steps: the preheating device (a 2) comprises a conveying belt and a heating box, wherein the conveying belt is used for conveying core layer blanks, the conveying belt is in butt joint with the core layer blank feeding device (a 1), limiting baffles are arranged on two sides above the conveying belt, one ends, close to the core layer blank feeding device (a 1), of the limiting baffles are outwards bent, conveying rollers are arranged between the core layer blank adsorption mechanism (a 10) and the double-sided laminating device (a 3) and used for transitional conveying of the core layer blanks, an upper layer plate stacking area (a 5) and a lower layer plate stacking area (a 6) are located at the conveying starting end of the limiting conveying belt (a 43), the upper layer plate stacking area (a 5) is a storage frame used for stacking and placing upper layer plates, the lower layer plate stacking area (a 6) is a storage frame used for stacking and placing lower layer plates, the limiting conveying belt (a 43) comprises two limiting plates which are vertically fixed on the conveying direction, and the distance between the limiting plates is matched with a back plate to be prepared by a television blank.