CN219446097U - Hot-pressing PET membrane aluminium curb plate side pushes away curved mould - Google Patents

Abstract

The utility model provides a hot-pressing PET film aluminum side plate side bending die, which comprises a lower die and an upper die; the lower die comprises a lower supporting plate, a lower cushion block, a lower die holder, a lower backing plate and a lower die plate which are sequentially fixed from bottom to top; an inner stripper plate which can move up and down is arranged in the lower template; a nitrogen spring and a constant-height shaft sleeve are arranged between the inner stripper plate and the lower die holder; at least one group of bending forming assemblies are arranged on the outer side of the lower template corresponding to the inner stripper plate; the bending forming assembly comprises a swinging block seat and a lower forming swinging block; the swing block seat is fixed on the lower backing plate; the bottom of the lower forming swing block is rotationally connected above the swing block seat; a needle roller is arranged on one side of the lower forming swing block, which is close to the inner stripper plate; the lower backing plate is provided with a first spring thimble; the upper die comprises an upper die seat, an upper base plate and an upper forming plate which are sequentially fixed from top to bottom; an upper slotting tool is fixed above the upper forming plate corresponding to the lower forming swinging block; the upper slotting tool is used for driving the lower forming swing block to swing inwards; the utility model has good protection effect on the workpiece.

Description

Hot-pressing PET membrane aluminium curb plate side pushes away curved mould

Technical Field

The utility model relates to the technical field of hardware material forming dies, in particular to a hot-pressing PET film aluminum side plate side pushing and bending die.

Background

In the molding production process of the PET insulating film attached to the aluminum side plate after hot pressing, a release film is required to be padded on the back of the product to mold, so that scratch of the PET film is reduced. The traditional shaping of bending adopts L to roll over the mould and processes, adopts traditional L to roll over the mould because lower mould shaping piece will lock and die at the lower bolster, can lead to the fact the damage rupture of membranes to the aluminium curb plate in the material returning process of bending. The PET film attached to the side plate is bent and broken, the insulation function scrapping treatment is lost, the production process of the traditional forming L-shaped folding die for the pad release film is complex, scratch is difficult to achieve the effect of not breaking the film, and some patents also disclose dies with L-shaped bending structures, such as a Chinese patent with a patent number of CN217570634U, which discloses a bending forming die for L-shaped pins.

Disclosure of Invention

The utility model aims to provide a hot-pressing PET film aluminum side plate side pushing and bending die for solving the problems in the background art.

In order to achieve the above object, the present utility model provides the following technical solutions:

a hot-press PET film aluminum side plate side push bending die comprises a lower die and an upper die; the lower die comprises a lower supporting plate, a lower cushion block, a lower die holder, a lower backing plate and a lower die plate which are sequentially fixed from bottom to top; an inner stripper plate which can move up and down is arranged in the lower template; a nitrogen spring and an equal-height shaft sleeve are arranged between the inner stripper plate and the lower die holder; at least one group of bending forming assemblies are arranged on the outer side of the lower template corresponding to the inner stripper plate; the bending forming assembly comprises a swinging block seat and a lower forming swinging block; the swing block seat is fixed on the lower base plate; the bottom of the lower forming swing block is rotationally connected above the swing block seat; a needle roller is arranged on one side, close to the inner stripper plate, of the lower forming swing block; the lower backing plate is provided with a first spring thimble for propping against the lower forming swing block to swing outwards; the upper die comprises an upper die seat, an upper base plate and an upper forming plate which are sequentially fixed from top to bottom; an upper slotting tool is fixed above the upper forming plate corresponding to the lower forming swinging block; the upper slotting tool is used for driving the lower forming swing block to swing inwards.

Further describing the utility model, the upper end of the outer side of the lower forming swing block is provided with a first inclined plane; the bottom of the upper slotting tool is provided with a second inclined plane.

For further description of the utility model, the periphery of the upper forming plate is provided with inclined guide grooves corresponding to the positions of each group of bending forming assemblies; a forming sliding block is arranged in the inclined guide groove; the outer side of the forming sliding block is provided with an inward concave forming surface; a second spring thimble is arranged on the upper die holder corresponding to the upper part of each forming sliding block; the second spring thimble is propped against the upper end of the forming sliding block.

For further description of the present utility model, the bending forming assemblies are provided with three groups, which are respectively arranged at the left side, the right side and the rear side of the inner stripper plate.

The utility model is further described, wherein the needle roller is a tungsten steel needle roller.

The beneficial effects of the utility model are as follows:

the design adopts the mode of lower shaping pendulum block to bend the edge of the workpiece, the first spring thimble pushes the shaping pendulum block to outwards move under the die sinking state, so that the rolling pin also outwards moves, and in the die sinking process, the upper shaping plate pushes the inner stripper plate to downwards move, and meanwhile, the upper slotting tool pushes the lower shaping pendulum block to inwards swing, so that the outer edge of the workpiece can be bent in the die sinking process.

Drawings

FIG. 1 is an overall block diagram of the present utility model;

FIG. 2 is a block diagram of a pendulum mass seat and lower molded pendulum mass of the present utility model;

FIG. 3 is a block diagram of the upper slotting tool of the present utility model;

FIG. 4 is a block diagram of an upper shaping plate of the present utility model;

FIG. 5 is a block diagram of a molding slide of the present utility model;

FIG. 6 is a right side view block diagram of the open mold state of the present utility model;

fig. 7 is a right-side view of the mold clamping state of the present utility model.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

as shown in fig. 1-7, a hot-press PET film aluminum side plate side bending die comprises a lower die 1 and an upper die 2; the lower die 1 comprises a lower supporting plate 11, a lower cushion block 12, a lower die holder 13, a lower backing plate 14 and a lower die plate 15 which are sequentially fixed from bottom to top; an inner stripper plate 16 which can move up and down is arranged in the lower template 15; a nitrogen spring 17 and a contour sleeve 18 are arranged between the inner stripper plate 16 and the lower die holder 13, the nitrogen spring 17 increases the compression force on the inner stripper plate 16 to prevent bending and material leakage, and the contour sleeve 18 limits the upper limit position of the inner stripper plate 16 to prevent stripping; at least one group of bending forming assemblies 19 are arranged in the lower template 15 corresponding to the outer sides of the inner stripper plates 16; the bending forming assembly 19 comprises a swing block seat 191 and a lower forming swing block 192; the swing block seat 191 is fixed on the lower base plate 14; the bottom of the lower molding pendulum mass 192 is rotatably connected above the pendulum mass seat 191; a needle roller 1921 is mounted on the side of the lower molding pendulum block 192, which is close to the inner stripper plate 16; a first spring thimble 193 is arranged on the lower backing plate 14 and used for propping against the lower forming swing block 192 to swing outwards; the upper die 2 comprises an upper die seat 21, an upper backing plate 22 and an upper forming plate 23 which are sequentially fixed from top to bottom; an upper slotting tool 24 is fixed above the upper forming plate 23 corresponding to the lower forming pendulum 192; the upper slotting tool 24 is used for driving the lower forming pendulum 192 to swing inwards; the mode that adopts down shaping pendulum 192 bends the work piece edge, the middle part of the bottom surface of shaping pendulum 192 down has rectangular circular sand grip 1922, have on the pendulum seat 191 with circular sand grip 1922 complex circular recess 1911, circular sand grip 1922 inserts to in the circular recess 1911, reserve the clearance of swing activity between shaping pendulum 192 and the pendulum seat 191 down, thereby down shaping pendulum 192 can swing in pendulum seat 191 top, first spring thimble 193 top touch shaping pendulum outward movement under the die sinking state, make the roller needle 1921 also move outward along with it, and in the die sinking process, go up shaping board 23 top touch in-situ and take off board 16 down movement, go up the roller needle 24 top touch shaping pendulum 192 inboard swing down simultaneously, thereby at the in-process of die sinking then can bend the work piece outward flange, because this design adopts the mode that is roller needle 1921 rolled, thereby can not cause the damage or wearing and tearing to the work piece, when the die sinking, go up the roller needle 24 breaks away from down shaping pendulum 192, first spring 193 top touch down shaping bench press the work piece again and make the work piece 192 break away from the die sinking, thereby the work piece design can not lead to the function of protecting the work piece, the work piece can not be damaged, the work piece can normally, the function is prevented from the work piece is taken off, the work piece is prevented from the work piece is set up to the work piece to the top is worn down.

The upper outer end of the lower molding pendulum 192 is provided with a first inclined surface 1923; the bottom of the upper slotting tool 24 is provided with a second inclined plane 241, and inclined plane side pushing is adopted to facilitate adjustment and improve the bending success rate.

The periphery of the upper forming plate 23 is provided with inclined guide grooves 231 corresponding to the positions of each group of bending forming assemblies 19; a forming sliding block 232 is arranged in the inclined guide groove 231; the outer side of the molding slider 232 is provided with an inwardly concave molding surface 2321; a second spring thimble 25 is arranged on the upper die holder 21 corresponding to the upper part of each forming sliding block 232; the second spring thimble 25 is propped against the upper end of the forming sliding block 232; setting the molding surface 2321 as a concave structure, setting the molding angle to be larger than 90 degrees, reserving a rebound angle, and enabling the second spring thimble 25 to be in contact with the guide of the inclined guide groove 231 in the mold opening process, so that the molding sliding block 232 is ejected outwards for molding processing during mold closing, and is retracted inwards during mold opening so as to be convenient for demolding.

The shaping subassembly 19 of bending sets up three, sets up respectively in taking off the left side, right side and the rear side of board 16, the left and right sides of this design work piece to and the front side all need bend, trilateral bending because the front side need not to bend, has increased the dynamics of compressing tightly owing to this design nitrogen spring 17, thereby can not the material of running out at the membrane process work piece.

The needle roller 1921 is a tungsten steel needle roller 1921, and the tungsten steel material has a series of excellent performances such as high hardness, wear resistance, better strength and toughness, heat resistance, corrosion resistance and the like, and is suitable for the needle roller 1921 of the design.

The working principle of the embodiment is as follows:

before die sinking, the first spring thimble 193 pushes against the lower forming swing block 192 to swing outwards, the second spring thimble 25 pushes against the forming slide block 232 to a lower limit position, the nitrogen spring 17 pushes against the inner stripping plate 16 to an upper limit position, the workpiece is placed above the inner stripping plate 16, the bending edge of the workpiece leaks out of the outer side of the inner stripping plate 16, during die sinking, the upper die 2 is pressed downwards, the forming slide block 232 pushes against the workpiece, the second spring thimble 25 compresses, the forming slide block 232 moves upwards along with the inclined guide groove 231 and simultaneously pushes outwards, the upper forming plate 23 pushes against the inner stripping plate 16 to drive the inner supporting plate to move downwards, and when the upper slotting tool 24 contacts with the lower forming swing block 192, the lower forming swing block 192 is pushed against to swing inwards, so that the roller pin 1921 rolls inwards until the edge of the workpiece is rolled to the inner concave forming surface 2321 on the bonding forming slide block 232, during die sinking, the first spring 193 resets, the lower forming swing block 192 swings outwards, the roller pin 1921 is separated from the workpiece, and the second spring thimble 25 resets to drive the forming slide block 232 to be convenient to realize smooth die sinking.

The above description should not be taken as limiting the scope of the present utility model, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical substance of the present utility model still fall within the scope of the present utility model.

Claims (5)

1. A hot-press PET film aluminum side plate side push bending die comprises a lower die and an upper die; the method is characterized in that: the lower die comprises a lower supporting plate, a lower cushion block, a lower die holder, a lower backing plate and a lower die plate which are sequentially fixed from bottom to top; an inner stripper plate which can move up and down is arranged in the lower template; a nitrogen spring and an equal-height shaft sleeve are arranged between the inner stripper plate and the lower die holder; at least one group of bending forming assemblies are arranged on the outer side of the lower template corresponding to the inner stripper plate; the bending forming assembly comprises a swinging block seat and a lower forming swinging block; the swing block seat is fixed on the lower base plate; the bottom of the lower forming swing block is rotationally connected above the swing block seat; a needle roller is arranged on one side, close to the inner stripper plate, of the lower forming swing block; the lower backing plate is provided with a first spring thimble for propping against the lower forming swing block to swing outwards; the upper die comprises an upper die seat, an upper base plate and an upper forming plate which are sequentially fixed from top to bottom; an upper slotting tool is fixed above the upper forming plate corresponding to the lower forming swinging block; the upper slotting tool is used for driving the lower forming swing block to swing inwards.

2. The hot-pressed PET film aluminum side plate side push bending die as claimed in claim 1, wherein: the upper end of the outer side of the lower forming swing block is provided with a first inclined plane; the bottom of the upper slotting tool is provided with a second inclined plane.

3. The hot-pressed PET film aluminum side plate side push bending die as claimed in claim 1, wherein: the periphery of the upper forming plate is provided with inclined guide grooves corresponding to the positions of each group of bending forming assemblies; a forming sliding block is arranged in the inclined guide groove; the outer side of the forming sliding block is provided with an inward concave forming surface; a second spring thimble is arranged on the upper die holder corresponding to the upper part of each forming sliding block; the second spring thimble is propped against the upper end of the forming sliding block.

4. The hot-pressed PET film aluminum side plate side push bending die as claimed in claim 1, wherein: the bending forming assembly is provided with three groups which are respectively arranged at the left side, the right side and the rear side of the inner stripper plate.

5. The hot-pressed PET film aluminum side plate side push bending die as claimed in claim 1, wherein: the needle roller is a tungsten steel needle roller.