CN111215499B

CN111215499B - Ultra-thin TV backplate corner equipment of borduring that bends

Info

Publication number: CN111215499B
Application number: CN202010040909.5A
Authority: CN
Inventors: 谭日光; 吕学杰; 夏志
Original assignee: Dongguan Rending Mould Co ltd
Current assignee: Dongguan Rending Mould Co ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2021-08-17
Anticipated expiration: 2040-01-15
Also published as: CN111215499A

Abstract

The invention discloses equipment and a forming process for bending and covering corners of ultrathin television back plates, wherein the back plate corner bending and flattening forming process comprises the equipment, the equipment comprises a bending die and a side flattening die, and the equipment further comprises the following steps: step A45 degree bending comprises: the upper pressure wedge block of the bending die is matched with the back plate corners of the inner slider bending die and the outer slider bending die to perform 45-degree edge folding and tilting; step B side flattening comprises the following steps: and flattening the inclined side folded edge of the back plate by utilizing the press-in sub on the side flattening die to be matched with the inner slide block flattening die and the outer slide block flattening die to form the folded edge. According to the equipment and the processing method, the side edge at the corner of the back plate is bent at 45 degrees and then is bent and flattened, so that the bent, flattened and covered edge of the corner side edge of the television back plate has no scratch on the appearance, the processing efficiency of the television back plate is high, and the appearance of the back plate is smooth after baking finish.

Description

Ultra-thin TV backplate corner equipment of borduring that bends

Technical Field

The invention relates to the field of dies, in particular to an ultrathin television backboard corner bending and edge covering device and a forming method.

Background

In the prior art, referring to fig. 1, corner bending and edge covering processing from a state a to a state b is often required to be performed on four corners of an ultrathin television backboard. In the prior art, the processing is usually carried out by one-step bending and flattening molding. The backboard processed by the one-step bending and flattening molding has serious scratch on the appearance and obvious cracks, and meanwhile, the yield is low during the punching production of the backboard, and the appearance of the backboard is rough after the backboard is baked with paint.

Therefore, the market needs an apparatus and a forming method for bending and edge-wrapping corners of ultra-thin television back plates, which have no scratch on the appearance of the bent and flattened products and high yield and efficiency in product stamping and mass production.

Disclosure of Invention

The invention provides equipment and a forming method for bending and wrapping corners of an ultrathin television backboard aiming at the defects in the prior art.

According to a first aspect of the present invention, a technical solution adopted by the present invention is as follows: a device for bending and wrapping the corner of an ultrathin television backboard comprises a bending die for bending and inclining a 45-degree folded edge of the backboard corner and a side flattening die for bending and flattening the 45-degree folded edge; wherein the content of the first and second substances,

the bending die comprises a first upper die set and a first lower die set, an upper pressure wedge block is arranged at the lower end of a first upper stripping plate of the first upper die set, an upper slotting tool is arranged beside the first upper stripping plate, the upper slotting tool can be driven by the first upper die set to move so as to be movably butted with an outer sliding block bending die arranged on the first lower die set and can push the outer sliding block bending die to slide,

the first lower stripper plate of the first lower die set is connected with an inner slide block bending die arranged beside the first lower die set through a telescopic assembly, and the inner slide block bending die can be in butt joint with the upper pressure wedge and a first lower slotting tool arranged on a first lower base plate of the first lower die set; the upper pressing wedge block is butted with the inner sliding block bending die and fixes the back plate, the upper slotting tool pushes the outer sliding block bending die to slide and is movably butted with the inner sliding block bending die pushed by the first lower slotting tool to perform 45-degree edge folding and tilting on the corner of the back plate;

the side flattening die comprises a second upper die set and a second lower die set, the lower end of a second upper stripper plate of the second upper die set is provided with an upper pressing insert, a second lower backing plate of the second lower die set is provided with an outer slide block flattening die,

a second lower stripping plate of the second lower die set is connected with an inner sliding block flattening die arranged beside the second lower stripping plate through a first telescopic assembly, and the inner sliding block flattening die can be in butt joint with the upper pressing sub and a second lower slotting tool arranged on the second lower backing plate; the upper pressing part is butted with the inner sliding block flattening die and fixes the beveled back plate, and the outer sliding block flattening die can be matched with the inner sliding block flattening die which is pushed to slide by the second lower slotting tool to movably butt joint so as to carry out side flattening and forming edge covering on the beveled side edge of the back plate.

As a further elaboration of the above technical solution:

in the technical scheme, the first upper die set further comprises a first upper die base, a first upper base plate and a first upper clamping plate are fixedly arranged at the lower end of the first upper die base, a first stop plate which is connected with the lower end of the first upper clamping plate through a first floating assembly and can float up and down is arranged at the lower end of the first upper clamping plate, the first upper stripping plate is fixedly arranged at the lower end of the first stop plate, a first upper die plate fixedly connected with the first upper clamping plate is arranged beside the first upper stripping plate, and the upper slotting tool is arranged between the first upper stripping plate and the first upper die plate; the first lower die set further comprises a first lower clamping plate and a first lower die base, the first lower stripping plate is arranged on the first lower clamping plate and is matched with the first upper stripping plate just right, the first lower clamping plate is connected with the first lower base plate through a second floating assembly and can float up and down, the first lower base plate is fixedly arranged on the first lower die base, a first lower die plate is arranged on the side of the first lower stripping plate in a matched mode, and an outer sliding block bending die is arranged between the first lower die plate and the first lower stripping plate and is movably connected with the first lower die plate through a second telescopic assembly.

In the above technical scheme, the second upper module further comprises a second upper die base, a second upper backing plate, a second upper clamp plate and a second stop plate are fixedly arranged at the lower end of the second upper die base in sequence, and a second upper stripper plate is fixedly arranged at the lower end of the second stop plate; the second lower module further comprises a second lower clamping plate and a second lower die holder, the second lower stripper plate is arranged on the second lower clamping plate and is matched with the second upper stripper plate just right, the second lower clamping plate is connected with the second lower backing plate through a third floating assembly and can float up and down, the second lower backing plate is fixedly arranged on the second lower die holder, and the outer sliding block flattening die is fixedly arranged on the second lower backing plate.

In the technical scheme, the upper slotting tool, the upper pressing wedge block, the outer slider bending die and the second telescopic assembly are matched to form a group of outer bending units, the outer bending units are arranged on the transverse side and the longitudinal side of the bending die, and the outer bending units arranged in the transverse direction and the longitudinal direction are matched to form an outer bending assembly for covering the corresponding corner of the bending die; the inner slide block bending die and the telescopic assembly are matched to form a group of inner bending units, the transverse side edge, the longitudinal side edge and the four corners of the bending die are respectively provided with an inner bending unit, the inner bending units arranged at the positions of the corners of the bending die and the transverse side edge and the longitudinal side edge of the corners are matched to form inner bending assemblies which cover the matched corners and are butted with the outer bending assemblies, the inner bending units arranged at the transverse side edge and the longitudinal side edge of each corner also comprise first lower slotting tools, the first lower slotting tools can drive the inner slide block bending die matched with the inner bending units to slide along the transverse direction or the longitudinal direction, the inner slide block bending die arranged at the inner bending units of each corner slides along the direction deviating from the transverse direction or the longitudinal direction by 45 degrees in a matching way, the inner slide block bending die of each inner bending assembly is matched to slide and is butted with the outer slide block bending die of the outer bending assemblies, matching and carrying out 45-degree edge folding and beveling on the corner of the back plate.

In the above technical solution, the outer slider flattening dies are respectively disposed on the lateral and longitudinal sides of each corner of the side flattening die, and the outer slider flattening dies disposed in the lateral and longitudinal directions cooperate with the outer slider flattening dies disposed at the corner matching positions of the side flattening die to form an outer flattening assembly; the inner sliding block flattening dies and the first telescopic assemblies are matched to form a group of inner flattening units, the transverse and longitudinal side edges and four corners of the side flattening die are respectively provided with an inner flattening unit, the inner flattening units arranged at the positions of the corners of the side flattening die and the transverse side edges and the longitudinal side edges of the corners are matched to form inner flattening assemblies which cover the matched corners and are in butt joint with the outer flattening assemblies, the inner flattening units arranged at the transverse side edges and the longitudinal side edges of the corners further comprise second lower slotting tools, the second lower slotting tools can drive the inner sliding block flattening dies matched with the inner flattening units to slide along the transverse direction or the longitudinal direction, the inner sliding block flattening dies arranged at the inner flattening units of the corners slide along the direction deviating from the transverse direction or the longitudinal direction by 45 degrees, the inner sliding block flattening dies of the inner flattening assemblies are matched to slide and are in butt joint with the outer sliding block flattening dies of the outer flattening assemblies, matching the inclined side folding edge of the back plate to carry out side flattening and forming edge covering.

In the technical scheme, the outer slider bender comprises an outer slider body, a pushing insert and a tilting insert are embedded and assembled on the outer slider body, the upper slotting tool is driven by the first upper module to move vertically and enables the upper slotting tool to push the outer slider body to move, the outer slider body is driven in a matching manner to drive the tilting insert to slide towards the inner slider bender and butt with an inner slider insert embedded and assembled on the inner slider bender, and the side edge at the corner of the backboard is subjected to 45-degree edge folding and tilting in a matching manner; the inner slide block bending die further comprises an inner slide block body, and the inner slide block insert is detachably assembled on the inner slide block body; the bottom end of the inner sliding block body is provided with an inclined first wedge opening, the first lower slotting tool is provided with an inclined first wedge surface matched with the first wedge opening in structure, the first lower clamping plate is matched in a vertically floating mode to enable the first wedge surface of the first lower slotting tool to abut against the first wedge opening, and the inner sliding block body is pushed in a matched mode to drive the inner sliding block insert to slide towards the outer sliding block bending die; the inner sliding block insert is matched and rightly aligned with the upper pressing wedge block in position, the inner sliding block insert is provided with an inclined wedge table, a second wedge opening structurally matched with the wedge table is formed at the side of the bottom end of the upper pressing wedge block, and the first upper die set drives the upper pressing wedge block to vertically move and enables the second wedge opening to be matched with the wedge table to press and fix the back plate.

In the technical scheme, the outer sliding block flattening die comprises an outer sliding body fixedly arranged on the second lower backing plate, a flattening insert is embedded and assembled on the outer sliding body, a forming groove for flattening the side edge of the inclined side folding edge of the back plate is formed in the flattening insert, the flattening insert can be in butt joint with the inner sliding block flattening die, and the side folding edge of the inclined side folding edge of the back plate is subjected to side flattening and edge covering forming in a matching manner; the inner sliding block flattening die comprises an inner sliding body, an inner supporting block for supporting the backboard is detachably assembled on the inner sliding body, an inclined third wedge port is formed at the side of the bottom end of the inner sliding body, an inclined second wedge surface matched with the third wedge port in structure is formed on the second lower slotting tool, the second lower clamping plate is matched in a vertically floating mode to enable the second wedge surface of the second lower slotting tool to abut against the third wedge port, and the inner sliding body is pushed in a matched mode to drive the inner supporting block to slide towards the outer sliding block flattening die and be inserted into a side folding edge which is inclined by 45 degrees; interior vaulting block in the position with it is just right to go up the son matching of impressing, interior vaulting block system has protruding brace table, go up the son bottom side system of impressing have structurally with protruding brace table assorted is sunken carve the mouth, module drive on the second go up the son vertical movement of impressing and make sunken carve the mouth with protruding brace table cooperation, the matching is propped up and is pressed admittedly the backplate.

In the above technical solution, the telescopic assembly, the first telescopic assembly and the second telescopic assembly all include springs and screws, the springs are arranged on the first lower template, the first lower stripper plate and the second lower stripper plate, one end of the screw is connected with the spring, and the other end is connected with the outer slider bender, the inner slider bender and the inner slider flattening die; the outer sliding block bending die, the inner sliding block bending die and the inner sliding block flattening die are directly pushed to slide or pushed to slide in a transmission mode through an upper slotting tool, a first lower slotting tool and a second lower slotting tool which are matched, and the springs provide damping transmission and the screws pull the outer sliding block bending die, the inner sliding block bending die and the inner sliding block flattening die to move.

In the above technical solution, the first floating assembly, the second floating assembly and the third floating assembly each include a contour socket screw and a floating spring.

According to the second aspect of the present invention, the present invention further provides a technical solution as follows: a method for forming corner bending and edge covering of an ultrathin television backboard comprises the equipment for bending and edge covering the corner of the ultrathin television backboard according to the first aspect, and further comprises the following steps:

step A45 degree bending comprises:

a1, placing a back plate on a first lower stripper plate and an inner slide block bending die of the bending die, driving a first upper die set to drive an upper pressing wedge block and a first upper stripper plate to vertically move until the upper pressing wedge block and the first upper stripper plate press the back plate, and enabling the inner slide block bending die to slide outwards under the action of the inclined top of a first lower slotting tool and abut against the side edge of a back plate corner;

a2, using a punch press to drive the first upper die set to move downwards for two times, so that the upper slotting tool pushes the outer slide block bending die to slide, the outer slide block bending die slides and abuts against the outer side face of the side edge of the back plate corner, and the back plate corner is subjected to 45-degree edge folding and tilting;

step B side flattening comprises the following steps:

b1, placing the backboard with the 45-degree folded edge and the inclined angle on a second lower stripper plate and an inner slide block flattening die of the side flattening die, and enabling the inclined side folded edge of the backboard to extend out of the inner slide block flattening die;

b2, driving the second upper module to drive the upper pressing piece and the second upper stripper plate to vertically move by using a punch until the upper pressing piece and the second upper stripper plate press the back plate, and enabling the inner slide block flattening die to slide outwards under the action of the oblique top of the second lower slotting tool and abut against the inner side face of the side folded edge inclined by the back plate;

and B3, using a punch press to drive the second upper die set and the upper press-in sub to move downwards for two times, matching and pressing the back plate to be in contact with the outer slide block flattening die and flattening the inclined side folded edge of the back plate through the outer slide block flattening die to form the covered edge.

The invention has the beneficial effects that: according to the equipment and the processing method, the side edge at the corner of the back plate is bent at 45 degrees and then is bent and flattened, so that the bent, flattened and covered edge of the corner side edge of the television back plate has no scratch on the appearance, the processing efficiency of the television back plate is high, and the appearance of the back plate is smooth after baking finish.

Drawings

FIG. 1 is a schematic view of the state of a television back plate before and after corner bending and edge covering processing of the television back plate;

FIG. 2 is a schematic flow diagram of the molding process of the present invention;

FIG. 3 is a view showing a corner bending and hemming process according to the present invention;

FIG. 4 is a schematic view of the bending die of the present invention when the die is opened;

FIG. 5 is a schematic view of the bending die of the invention when the die is closed;

FIG. 6 is a schematic view of the bending die of the present invention when it is opened;

FIG. 7 is a schematic view of the bending die of the invention when the die is closed;

FIG. 8 is a schematic view of an external bending assembly of the present invention;

FIG. 9 is a schematic view of an inside bend assembly of the present invention;

FIG. 10 is a schematic view of the assembly of the outer and inner bending assemblies of the present invention;

FIG. 11 is a schematic view of an external flattening assembly in accordance with the present invention;

figure 12 is a schematic view of an internal flattening assembly in accordance with the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

Example 1

Fig. 1 and fig. 3-12 show an embodiment of the device for bending and hemming the corner of the ultra-thin tv back plate according to the present invention, which includes a bending die 100 for bending and tilting the 45 ° edge of the back plate corner and a side flattening die 200 for bending and flattening the 45 ° edge; wherein the content of the first and second substances,

the bending die 100 comprises a first upper die set 11 and a first lower die set 12, wherein an upper pressure wedge block 112 is arranged at the lower end of a first upper stripping plate 111 of the first upper die set 11, an upper slotting tool 113 is arranged beside the first upper stripping plate 111, the upper slotting tool 113 can be driven by the first upper die set 11 to move and is movably butted with an outer slide block bending die 13 arranged on the first lower die set 12 and can push the outer slide block bending die to slide, and the outer slide block bending die 13 slides to bend and tilt the side edge 002 turned out by the back plate 001 inwards by 45 degrees; the first lower stripper plate 121 of the first lower die set 12 is connected to an inner slide block bender 15 arranged beside the first lower die set 12 through a telescopic assembly 14, and the inner slide block bender 15 can be butted with the upper pressure wedge 112 and a first lower slotting tool 123 arranged on a first lower backing plate 122 of the first lower die set 12; the upper pressing wedge block 112 is in butt joint with the inner slide block bending die 15 and fixes the back plate 001, the upper slotting tool 113 pushes the outer slide block bending die 13 to slide and is in movable butt joint with the inner slide block bending die 15 pushed to slide by the first lower slotting tool 123 so as to perform 45-degree edge folding and tilting on the corner of the back plate 001, and the inclined side edge folding 003 is matched and tilted;

the side flattening die 200 comprises a second upper die set 21 and a second lower die set 22, an upper pressing sub 212 is arranged at the lower end of a second upper stripping plate 211 of the second upper die set 21, an outer slide block flattening die 23 is arranged on a second lower backing plate 221 of the second lower die set 22, a second lower stripping plate 222 of the second lower die set 22 is connected with an inner slide block flattening die 25 arranged beside the second lower die set through a first telescopic assembly 24, and the inner slide block flattening die 25 can be in butt joint with the upper pressing sub 212 and a second lower slotting tool 223 arranged on the second lower backing plate 221; the upper pressing part 212 is in butt joint with the inner slide block flattening die 25 and is fixed to finish the inclined back plate 001, and the outer slide block flattening die 23 can be matched with the inner slide block flattening die 25 pushed to slide by the second lower slotting tool 223 to movably butt joint to carry out side flattening and forming of the side folded edge 003 for inclining the back plate 001.

In an optional implementation manner of this embodiment, the first upper die set 11 further includes a first upper die base 114, a first upper pad 115 and a first upper clamp 116 are fixedly disposed at a lower end of the first upper die base 114, a first stop plate 117 connected to the first upper clamp 116 through a first floating assembly 16 and capable of floating up and down is disposed at a lower end of the first upper clamp 116, the first upper stripper plate 111 is fixedly disposed at a lower end of the first stop plate 117, a first upper die plate 118 fixedly connected to the first upper clamp 116 is disposed beside the first upper stripper plate 111, and the upper slotting tool 113 is disposed between the first upper stripper plate 111 and the first upper die plate 118; the first lower die set 12 further includes a first lower clamp plate 124 and a first lower die holder 125, the first lower stripper plate 121 is disposed on the first lower clamp plate 124 and is aligned with the first upper stripper plate 111, the first lower clamp plate 124 is connected with the first lower backing plate 122 through a second floating assembly 26 and can float up and down, the first lower backing plate 122 is fixedly disposed on the first lower die holder 125, a first lower die plate 126 is further disposed on the first lower backing plate 122 at a side thereof aligned with the first lower stripper plate 121, and the outer slider bender 13 is disposed between the first lower die plate 126 and the first lower stripper plate 121 and is movably connected with the first lower die plate 126 through a second telescopic assembly 17. In this embodiment, the second upper die set 21 further includes a second upper die holder 213, a second upper pad plate 214, a second upper clamp plate 215 and a second stop plate 216 are sequentially and fixedly disposed at the lower end of the second upper die holder 213, and the second upper stripper plate 211 is fixedly disposed at the lower end of the second stop plate 216; the second lower die set 22 further comprises a second lower clamping plate 224 and a second lower die holder 225, the second lower stripper plate 222 is arranged on the second lower clamping plate 224 and is matched and aligned with the second upper stripper plate 211, the second lower clamping plate 224 is connected with the second lower backing plate 221 through a third floating assembly 27 and can float up and down, the second lower backing plate 221 is fixedly arranged on the second lower die holder 225, and the outer slide block flattening die 23 is fixedly arranged on the second lower backing plate 221.

In an optional implementation manner of this embodiment, the upper slotting tool 113, the upper pressing wedge 112, the outer slider bender 13 and the second telescopic assembly 17 are matched to form a set of outer bending units 18, the outer bending units 18 are respectively disposed on the lateral and longitudinal sides of the bending mold 100, and the outer bending units 18 disposed in the lateral and longitudinal directions are matched to form an outer bending assembly covering the corresponding corner of the bending mold; the inner slide block bending die 15 and the telescopic component 14 are matched to form a group of inner bending units 19, the transverse and longitudinal sides and four corners of the bending die 100 are respectively provided with an inner bending unit 19, the inner bending units 19 arranged at the positions of the corners of the bending die 100 and the transverse sides and the longitudinal sides of the corners are matched to form inner bending components which cover the matched corners and are butted with the outer bending components, the inner bending units 19 arranged at the transverse sides and the longitudinal sides of the corners further comprise first lower slotting tools 123, the first lower slotting tools 123 can drive the inner slide block bending die 15 matched with the inner bending units 19 to slide along the transverse direction or the longitudinal direction, the inner slide block bending die 15 arranged at the inner bending units 19 of each corner can slide along the direction deviated from the transverse direction or the longitudinal direction by 45 degrees, the inner slide block bending die 15 of each inner bending component can slide in a matched manner and is butted with the outer slide block bending die 13 of the outer bending components, and matching, carrying out 45-degree edge folding and beveling on the corner of the back plate 001 and forming a side edge folding 003.

In this embodiment, the outer slide block flattening dies 23 are disposed on the lateral and longitudinal sides of each corner of the side flattening die 200, and the outer slide block flattening dies 23 disposed in the lateral and longitudinal directions cooperate with the outer slide block flattening dies 23 disposed at the matched corner positions of the side flattening die 200 to form an outer flattening assembly; the inner sliding block flattening dies 25 and the first telescopic assemblies 24 are matched to form a group of inner flattening units 29, the transverse and longitudinal side edges and four corners of the side flattening die 200 are respectively provided with an inner flattening unit 29, the inner flattening units 29 arranged at the positions of the corners of the side flattening die 200 and the transverse side edges and the longitudinal side edges of the corners are matched to form inner flattening assemblies which cover the matched corners and are butted with the outer flattening assemblies, the inner flattening units 29 arranged at the transverse side edges and the longitudinal side edges of each corner further comprise second lower slotting tools 223, the second lower slotting tools 223 can drive the inner sliding block flattening dies 25 matched with the inner flattening units 29 to slide along the transverse direction or the longitudinal direction, the inner sliding block flattening dies 25 arranged at the inner flattening units 29 of each corner slide along the direction deviating from the transverse direction or the longitudinal direction by 45 degrees, the inner sliding block flattening dies 25 of each inner flattening assembly slide in a matched manner and are butted with the outer sliding block flattening dies 23 of the outer flattening assemblies, matching with the side folding edge 003 which inclines the back plate 001, performing side flattening and forming the wrapping 004.

In an optional implementation manner of this embodiment, the outer slider bender 13 includes an outer slider body 131, a pushing insert 132 and a tilting insert 133 are embedded and assembled on the outer slider body 131, the upper slotting tool 113 is driven by the first upper module 11 to move vertically and enables the upper slotting tool 113 to push the outer slider body 131 to move, the outer slider body 131 is driven in a matching manner to drive the tilting insert 133 to slide towards the inner slider bender 15 and butt-joint with the inner slider insert 151 embedded and assembled on the inner slider bender 15, and a 45-degree folding and tilting operation is performed on a side edge 002 at a corner of the back plate 001 in a matching manner; the inner slide block bending die 15 further comprises an inner slide block body 152, and the inner slide block insert 151 is detachably assembled on the inner slide block body 152; the bottom end of the inner sliding block body 152 is provided with an inclined first wedge 152-1, the first lower slotting tool 123 is provided with an inclined first wedge surface 123-1 which is matched with the first wedge 152-1 in structure, the first lower clamping plate 124 is matched in a vertically floating manner, so that the first wedge surface 123-1 of the first lower slotting tool 123 is abutted against the first wedge 152-1, and the inner sliding block body 152 is pushed in a matching manner to drive the inner sliding block insert 151 to slide towards the outer sliding block bending die 13; the inner sliding block insert 151 is matched and aligned with the upper pressure wedge block 112 in position, the inner sliding block insert 151 is provided with an inclined wedge table 151-1, a second wedge opening 112-1 matched with the wedge table 151-1 in structure is formed at the side of the bottom end of the upper pressure wedge block 112, and the first upper module 11 drives the upper pressure wedge block 112 to vertically move and enables the second wedge opening 112-1 to be matched with the wedge table 151-1 to press and fix the back plate 001.

In this embodiment, the outer sliding block flattening die 23 includes an outer sliding body 231 fixed on the second lower backing plate 221, a flattening insert 232 is embedded and assembled on the outer sliding body 231, a forming groove 232-1 for flattening the side of the side folding edge 003 of the back plate 001 that is inclined is formed on the flattening insert 232 (so-called side flattening is inward folding and then flattening in the direction of the side folding edge 003), the flattening insert 232 can be abutted with the inner sliding block flattening die 25 to match the side folding edge 003 of the back plate 001 that is inclined for side flattening and forming a covered edge 004; the inner sliding block flattening die 25 comprises an inner sliding body 251, an inner supporting block 252 for supporting the backboard is detachably assembled on the inner sliding body 251, an inclined third wedge 251-1 is formed at the side of the bottom end of the inner sliding body 251, an inclined second wedge surface 223-1 matched with the third wedge 251-1 in structure is formed on the second lower slotting tool 223, the second lower clamping plate 224 is matched in a vertically floating manner, so that the second wedge surface 223-1 of the second lower slotting tool 223 is abutted against the third wedge 251-1, and the inner sliding body 251 is pushed in a matching manner to drive the inner supporting block 252 to slide towards the outer sliding block flattening die 23 and be inserted into a side folding edge 003 finishing 45-degree inclination; the inner supporting block 252 is matched and aligned with the upper press-in sub 212 in position, the inner supporting block 252 is provided with a convex supporting table 252-1, a concave wedge port 212-1 structurally matched with the convex supporting table 252-1 is formed at the side of the bottom end of the upper press-in sub 212, and the second upper module 21 drives the upper press-in sub 212 to vertically move and enables the concave wedge port 212-1 to be matched with the convex supporting table 252-1 to be matched, supported and pressed and fixed with the back plate 001.

Preferably, the telescopic assembly 14, the first telescopic assembly 24 and the second telescopic assembly 17 each include a spring 300 and a screw 400, the spring 300 is disposed on the first lower template 126, the first lower stripper plate 121 and the second lower stripper plate 222, one end of the screw 400 is connected to the spring 300, and the other end is connected to the outer slider bender 13, the inner slider bender 15 and the inner slider flattening die 25; the outer slider bender 13, the inner slider bender 15 and the inner slider flattening die 25 are directly pushed to slide or pushed to slide in a transmission manner by the matched upper slotting tool 113, the first lower slotting tool 123 and the second lower slotting tool 223, and the spring 300 provides damping transmission to drive the screw 400 to pull the outer slider bender 13/the inner slider bender 15/the inner slider flattening die 25 to move.

Preferably, the first, second and third floating

assemblies

16, 26, 27 each include a contoured socket screw 500 and a floating spring 600.

Example 2

Referring to fig. 2 to 3, the present invention further provides a method for forming a corner bending and edge covering of an ultra-thin tv back panel, including the apparatus for bending and edge covering a corner of an ultra-thin tv back panel according to embodiment 1, further including the following steps:

step S0145 ° bending it includes:

step S01-1, placing the back plate on a first lower stripper plate and an inner slide block bending die of the bending die, driving the first upper die set to drive the upper pressure wedge block and the first upper stripper plate to vertically move until the upper pressure wedge block and the first upper stripper plate press the back plate, and enabling the inner slide block bending die to slide outwards under the action of the inclined top of the first lower slotting tool and prop against the side edge of the corner of the back plate;

step S01-2, a punch press is used for driving the first upper die set to move downwards for the second time, so that the upper slotting tool pushes the outer sliding block bending die to slide, the outer sliding block bending die slides and abuts against the outer side face of the side edge of the back plate corner, and 45-degree edge folding and tilting are carried out on the back plate corner;

step S02 side flattening includes:

step S02-1, placing the backboard with the 45-degree folded edge and the inclined angle on a second lower stripper plate and an inner slide block flattening die of the side flattening die, and enabling the inclined side folded edge of the backboard to extend out of the inner slide block flattening die;

step S02-2, the second upper die set is driven by a punch press to drive the upper pressing-in piece and the second upper stripper plate to vertically move until the upper pressing-in piece and the second upper stripper plate press the back plate, and the inner slide block flattening die slides outwards under the action of the oblique top of the second lower slotting tool and pushes against the inner side face of the side folding edge of the back plate;

and step S02-3, driving the second upper die set and the upper press-in sub to move downwards for two times by using a punch press, matching and pressing the back plate until the back plate is in contact with the outer slide block flattening die, and flattening the inclined side folding edge of the back plate by the outer slide block flattening die to form the edge covering.

According to the equipment and the processing method, the side edge at the corner of the back plate is bent at 45 degrees and then is bent and flattened, so that the bent, flattened and covered edge of the corner side edge of the television back plate has no scratch on the appearance, the processing efficiency of the television back plate is high, and the appearance of the back plate is smooth after baking finish.

The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims

1. The device for bending and edging the corner of the ultrathin television backboard is characterized by comprising a bending die for bending and inclining a 45-degree folded edge of the backboard corner and a side flattening die for bending and flattening the side of the 45-degree folded edge; wherein the content of the first and second substances,

the bending die comprises a first upper die set and a first lower die set, an upper pressing wedge block is arranged at the lower end of a first upper stripping plate of the first upper die set, an upper slotting tool is arranged beside the first upper stripping plate, the upper slotting tool can be driven by the first upper die set to move so as to be in movable butt joint with an outer sliding block bending die arranged on the first lower die set and can push the outer sliding block bending die to slide, a first lower stripping plate of the first lower die set is connected with an inner sliding block bending die arranged beside the first lower stripping plate through a telescopic assembly, and the inner sliding block bending die can be in butt joint with the upper pressing wedge block and a first lower slotting tool arranged on a first lower base plate of the first lower die set; the upper pressing wedge block is butted with the inner sliding block bending die and fixes the back plate, the upper slotting tool pushes the outer sliding block bending die to slide and is movably butted with the inner sliding block bending die pushed by the first lower slotting tool to perform 45-degree edge folding and tilting on the corner of the back plate; the side flattening die comprises a second upper die set and a second lower die set, an upper pressing sub is arranged at the lower end of a second upper stripping plate of the second upper die set, an outer sliding block flattening die is arranged on a second lower backing plate of the second lower die set, a second lower stripping plate of the second lower die set is connected with an inner sliding block flattening die arranged beside the second lower stripping plate through a first telescopic assembly, and the inner sliding block flattening die can be in butt joint with the upper pressing sub and a second lower slotting tool arranged on the second lower backing plate; the upper pressing part is butted with the inner sliding block flattening die and fixes the beveled back plate, and the outer sliding block flattening die can be matched with the inner sliding block flattening die which is pushed to slide by the second lower slotting tool to movably butt joint so as to carry out side flattening and forming edge covering on the beveled side edge of the back plate.

2. The device for bending and covering the corner of the ultrathin television back plate according to claim 1, wherein the first upper die set further comprises a first upper die base, a first upper base plate and a first upper clamping plate are fixedly arranged at the lower end of the first upper die base, a first stop plate which is connected with the first upper clamping plate through a first floating assembly and can float up and down is arranged at the lower end of the first upper clamping plate, a first upper stripping plate is fixedly arranged at the lower end of the first stop plate, a first upper die plate fixedly connected with the first upper clamping plate is arranged beside the first upper stripping plate, and the upper slotting tool is arranged between the first upper stripping plate and the first upper die plate; the first lower die set further comprises a first lower clamping plate and a first lower die base, the first lower stripping plate is arranged on the first lower clamping plate and is matched with the first upper stripping plate just right, the first lower clamping plate is connected with the first lower base plate through a second floating assembly and can float up and down, the first lower base plate is fixedly arranged on the first lower die base, a first lower die plate is arranged on the side of the first lower stripping plate in a matched mode, and an outer sliding block bending die is arranged between the first lower die plate and the first lower stripping plate and is movably connected with the first lower die plate through a second telescopic assembly.

3. The device for bending and covering the corner of the ultrathin television back plate according to claim 2, wherein the second upper die set further comprises a second upper die base, a second upper base plate, a second upper clamping plate and a second stop plate are fixedly arranged at the lower end of the second upper die base in sequence, and a second upper stripping plate is fixedly arranged at the lower end of the second stop plate; the second lower module further comprises a second lower clamping plate and a second lower die holder, the second lower stripper plate is arranged on the second lower clamping plate and is matched with the second upper stripper plate just right, the second lower clamping plate is connected with the second lower backing plate through a third floating assembly and can float up and down, the second lower backing plate is fixedly arranged on the second lower die holder, and the outer sliding block flattening die is fixedly arranged on the second lower backing plate.

4. The device for bending and hemming the corners of the back plate of the ultrathin television as claimed in claim 3, wherein the upper slotting tool, the upper pressing wedge, the bending die of the outer slide block and the second telescopic assembly are matched to form a group of outer bending units, the outer bending units are arranged on the transverse side and the longitudinal side of the bending die, and the outer bending units arranged in the transverse direction and the longitudinal direction are matched to form outer bending assemblies for covering the corresponding corners of the bending die; the inner slide block bending die and the telescopic assembly are matched to form a group of inner bending units, the transverse side edge, the longitudinal side edge and the four corners of the bending die are respectively provided with an inner bending unit, the inner bending units arranged at the positions of the corners of the bending die and the transverse side edge and the longitudinal side edge of the corners are matched to form inner bending assemblies which cover the matched corners and are butted with the outer bending assemblies, the inner bending units arranged at the transverse side edge and the longitudinal side edge of each corner also comprise first lower slotting tools, the first lower slotting tools can drive the inner slide block bending die matched with the inner bending units to slide along the transverse direction or the longitudinal direction, the inner slide block bending die arranged at the inner bending units of each corner slides along the direction deviating from the transverse direction or the longitudinal direction by 45 degrees in a matching way, the inner slide block bending die of each inner bending assembly is matched to slide and is butted with the outer slide block bending die of the outer bending assemblies, matching and carrying out 45-degree edge folding and beveling on the corner of the back plate.

5. The apparatus for corner bending and hemming of an ultra-thin tv back plate according to claim 4, wherein the outer slide block flattening dies are provided on both the lateral and longitudinal sides of each corner of the flattening die, and the outer slide block flattening dies provided in the lateral and longitudinal directions cooperate with the outer slide block flattening dies provided at the positions of the matched corners of the flattening die to form an outer flattening assembly; the inner sliding block flattening die and the first telescopic component are matched to form a group of inner flattening units, an inner flattening unit is arranged on each of the transverse side edge, the longitudinal side edge and the four corners of the flattening die, the inner flattening units arranged at each corner of the flattening die and the transverse side edge and the longitudinal side edge of the corner are matched to form an inner flattening component which covers the matched corner and is butted with the outer flattening component, the inner flattening units arranged at the transverse side edge and the longitudinal side edge of each corner further comprise a second lower slotting tool, the second lower slotting tool can drive the inner sliding block flattening die matched with the inner flattening unit to slide along the transverse direction or the longitudinal direction, the inner sliding block flattening die arranged at the inner flattening unit of each corner slides along the direction deviating from the transverse direction or the longitudinal direction by 45 degrees, the inner sliding block flattening die of each inner flattening component slides in a matched manner and is butted with the outer sliding block flattening die of the outer flattening component, matching the inclined side folding edge of the back plate to carry out side flattening and forming edge covering.

6. The device for bending and hemming the back plate of the ultrathin television according to claim 5, wherein the outer slide block bender comprises an outer slide block body, a pushing insert and a tilting insert are embedded and assembled on the outer slide block body, the upper slotting tool is driven by the first upper module to move vertically and push the upper slotting tool against the outer slide block body to move, the outer slide block body is driven to drive the tilting insert to slide towards the inner slide block bender in a matching manner and is butted with an inner slide block insert embedded and assembled on the inner slide block bender, and the side edge at the corner of the back plate is matched to be subjected to 45-degree flanging and tilting; the inner slide block bending die further comprises an inner slide block body, and the inner slide block insert is detachably assembled on the inner slide block body; the bottom end of the inner sliding block body is provided with an inclined first wedge opening, the first lower slotting tool is provided with an inclined first wedge surface matched with the first wedge opening in structure, the first lower clamping plate is matched in a vertically floating mode to enable the first wedge surface of the first lower slotting tool to abut against the first wedge opening, and the inner sliding block body is pushed in a matched mode to drive the inner sliding block insert to slide towards the outer sliding block bending die; the inner sliding block insert is matched and rightly aligned with the upper pressing wedge block in position, the inner sliding block insert is provided with an inclined wedge table, a second wedge opening structurally matched with the wedge table is formed at the side of the bottom end of the upper pressing wedge block, and the first upper die set drives the upper pressing wedge block to vertically move and enables the second wedge opening to be matched with the wedge table to press and fix the back plate.

7. The device for bending and hemming the corners of the back plate of the ultrathin television as claimed in claim 6, wherein the outer sliding block flattening die comprises an outer sliding body fixedly arranged on the second lower backing plate, a flattening insert is embedded and assembled on the outer sliding body, a forming groove for flattening the side edge of the inclined side folding edge of the back plate is formed in the flattening insert, the flattening insert can be in butt joint with the inner sliding block flattening die, and the side edge of the inclined side folding edge of the back plate is matched to be flattened laterally and formed into a hemming; the inner sliding block flattening die comprises an inner sliding body, an inner supporting block for supporting the backboard is detachably assembled on the inner sliding body, an inclined third wedge port is formed at the side of the bottom end of the inner sliding body, an inclined second wedge surface matched with the third wedge port in structure is formed on the second lower slotting tool, the second lower clamping plate is matched in a vertically floating mode to enable the second wedge surface of the second lower slotting tool to abut against the third wedge port, and the inner sliding body is pushed in a matched mode to drive the inner supporting block to slide towards the outer sliding block flattening die and be inserted into a side folding edge which is inclined by 45 degrees; interior vaulting block in the position with it is just right to go up the son matching of impressing, interior vaulting block system has protruding brace table, go up the son bottom side system of impressing have structurally with protruding brace table assorted is sunken carve the mouth, module drive on the second go up the son vertical movement of impressing and make sunken carve the mouth with protruding brace table cooperation, the matching is propped up and is pressed admittedly the backplate.

8. The device for bending and hemming the corners of the back plate of the ultrathin television as claimed in claim 7, wherein the telescopic assembly, the first telescopic assembly and the second telescopic assembly comprise springs and screws, the springs are arranged on the first lower template, the first lower stripper plate and the second lower stripper plate, one end of each screw is connected with the corresponding spring, and the other end of each screw is connected with the corresponding outer slide block bending die, the corresponding inner slide block bending die and the corresponding inner slide block flattening die; the outer slide block bending die, the inner slide block bending die and the inner slide block flattening die are directly pushed to slide or pushed to slide in a transmission mode through an upper slotting tool, a first lower slotting tool and a second lower slotting tool which are matched, and the screws drive the outer slide block bending die, the inner slide block bending die and the inner slide block flattening die to move.

9. The apparatus for corner bending and hemming of an ultra-thin tv back plate according to claim 8, wherein the first floating assembly, the second floating assembly and the third floating assembly each include a contour socket screw and a floating spring.

10. A method for forming corner bending and edge covering of an ultrathin television backboard, comprising the device for corner bending and edge covering of the ultrathin television backboard according to claim 9, and further comprising the following steps:

step A45 degree bending comprises:

step B side flattening comprises the following steps: