CN113843327A - Stamping die for hot stamping forming - Google Patents

Abstract

The invention relates to the technical field of hot stamping, in particular to a stamping die for hot stamping forming, which comprises a base, wherein the center position of the upper surface of the base is connected with a lower die in a sliding manner, the inner surface of the lower die is embedded and connected with an upper die, the edge position of the lower surface of the upper die is symmetrically and fixedly connected with two pressing plates, and the lower ends of the two pressing plates are connected with a demoulding mechanism in a penetrating manner; the demolding mechanism comprises an installation box, a first connecting plate, a second connecting plate, a first spring, a first fixing rod, a rotating rod and a limiting block. According to the invention, by the operation of loosening and tightening the lower die, the lower die is fixed during lower stamping, the limit on the lower die is released after stamping, the gap between the workpiece and the lower die is increased during demoulding, the problem that the workpiece is clamped in the lower die after stamping to cause difficulty in taking out the workpiece is avoided, meanwhile, the damage caused by friction between the workpiece and the inner surface of the lower die in the taking-out process is avoided, the quality of the workpiece is improved, and the working efficiency is improved.

Description

Stamping die for hot stamping forming

Technical Field

The invention relates to the technical field of hot stamping, in particular to a stamping die for hot stamping forming.

Background

The hot stamping forming technology utilizes the principle of metal thermoplastic forming, can realize quenching heat treatment on a plate material while forming, improves the forming performance of the material, and greatly expands the application range of high-strength and ultrahigh-strength steel in automobile parts; the hot stamping is used as a novel forming technology, is used as another effective way for high strengthening of stamping parts, and has wide application prospect in the field of automobiles. More and more foreign vehicle models, including economical trolleys, have adopted hot stamping parts; in China, the vehicles introduced in Europe and America also widely adopt steel plate hot stamping parts. Typical body parts suitable for hot stamping mainly include front and rear door left and right bumper bars, front and rear bumpers, a pillar a reinforcing plate, a pillar B reinforcing plate, a pillar C reinforcing plate, a floor center tunnel, a roof reinforcing beam, and the like.

Chinese patent discloses a hot stamping die, patent application number is CN201821131285.2, a hot stamping die is used in car B post production and processing, which comprises a base, the equal fixedly connected with support column in both ends of base, the top fixedly connected with mounting bracket of support column, the die under the middle part fixedly connected with of base, the spacing post of the equal fixedly connected with in top both sides of die down, processing groove has been seted up at the top middle part of die down, the bottom middle part of die is seted up flutedly down, be equipped with the push rod in the recess, one side of push rod is equipped with transmission gear, transmission gear's one end is equipped with the motor, the top fixedly connected with kicking block of push rod, the kicking block is located the bottom middle part in processing groove, the middle part fixedly connected with hydraulic pump of mounting bracket.

This hot stamping die is used in production and processing of car B post, through setting up the cooling duct, can realize rapid cooling, rapid prototyping's effect has been reached, through setting up the kicking block, can be with fashioned car B post jack-up, the purpose of fortune material has been realized, work efficiency has been improved, and the automobile parts of this scheme stamping forming can with the inseparable laminating of lower mould, lead to the difficult problem of taking out of fashioned automobile parts, the kicking block of setting is ejecting with the work piece by force, probably lead to workpiece surface's wearing and tearing, or because the kicking block breaks away from the pressure of work piece for the work piece that the work piece was applyed to the lower mould for the power of applying for workpiece surface, probably lead to the deformation of work piece, influence the normal use of work piece.

Therefore, a press die for hot press forming is proposed.

Disclosure of Invention

The present invention is directed to a press die for hot press forming, which solves the above problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme:

a stamping die for hot stamping forming comprises a base, wherein a lower die is connected to the center of the upper surface of the base in a sliding manner, an upper die is embedded and connected to the inner surface of the lower die, two pressing plates are symmetrically and fixedly connected to the edge of the lower surface of the upper die, and a demolding mechanism is connected to the lower ends of the two pressing plates in a penetrating manner;

demoulding mechanism includes install bin, first connecting plate, second connecting plate, first spring, first dead lever, dwang and stopper, two the clamp plate lower extreme all through connection has the install bin, the inside lower surface of install bin is close to central point and puts fixedly connected with second connecting plate, the first spring of second connecting plate upper surface central point fixedly connected with of putting, the first connecting plate of first spring upper end fixedly connected with, first connecting plate one end is rotated and is connected with the dwang, second connecting plate one end is rotated and is connected with the dwang, the dwang is cross state just dwang surface central point puts through connection and has first dead lever, dwang one end sliding connection has the stopper.

In the prior art, a cooling pipeline is arranged, so that rapid cooling can be realized, a rapid forming effect is achieved, a formed automobile B column can be jacked up by arranging a jacking block, the purpose of material transportation is realized, and the working efficiency is improved; the invention is provided with a demoulding mechanism, during operation, an upper mould moves downwards to punch and form a workpiece, a pressure plate moves downwards along with the upper mould in the downward moving process, the first connecting plate is pushed to move downwards after contacting the first connecting plate, the first connecting plate applies pressure to a first spring to enable the spring to be compressed, the first connecting plate continues to move downwards, two rotating rods rotate by taking a first fixing rod as a fulcrum, the transverse included angle of the rotating rods is reduced, one end of the rotating rod far away from the first connecting plate is enabled to move towards the lower mould, a limiting block is simultaneously pushed towards the direction of the lower mould to apply pressure to the lower mould so as to counteract the thrust brought by the downward movement of the workpiece along with the upper mould, the lower mould does not move when the workpiece is punched and formed, after the punching is finished, the upper mould moves upwards, the pressure plate moves upwards, the pressure applied to the first spring is continuously reduced, and the first spring is enabled to recover to the original length, impel first connecting plate rebound, and then realize the rotation of two dwangs, and the stopper will remove to the direction of keeping away from the lower mould, the side pressure that makes the lower mould receive reduces, reduce the laminating degree of lower mould to the work piece, this mode is through carrying out the operation of elasticity to the lower mould, fix the lower mould during lower punching press, remove the spacing of lower mould after the punching press, when increasing the work piece drawing of patterns and the space between the lower mould, avoid the work piece by the card inside the lower mould after the punching press, cause the problem that the work piece is difficult to take out smoothly, the damage that the work piece caused in taking out the in-process and lower mould internal surface emergence friction has been avoided simultaneously, the quality of work piece is improved, the efficiency of work is improved.

Preferably, the center of the surface of the lower surface in the base is fixedly connected with an electric telescopic rod, the upper end of the electric telescopic rod is fixedly connected with a jacking block, and the side surface of the jacking block is rotatably connected with a roller at a position close to the lower die.

After the limitation of the side surface of the lower die is removed, the side surface of the workpiece is attached to the side surface of the lower die, and the lower die cannot be smoothly opened, so that the workpiece is not taken out; according to the invention, by arranging the electric push rod and the idler wheel, after the limiting block is separated from the outer surface of the lower die, the electric telescopic rod is started, the jacking block moves upwards, and the idler wheel rolls on the surface of the lower die to push the lower die towards two sides, so that the gap between the side surface of the workpiece and the inner side surface of the lower die is further increased, the workpiece is conveniently separated from the lower die, and the working efficiency is improved.

Preferably, the inside edge position symmetry of base is provided with two storage casees, two storage case surface lower extreme all through connection has two pipelines, two the pipeline surface runs through the kicking block and extends to the position of lower mould, two the pipeline internal surface is close to two water pumps of the fixed position connection of kicking block, two the water pump is connected with the switch jointly, switch upper surface central point puts the fixedly connected with second spring, second spring upper end fixedly connected with contact plate, the kicking block is run through and extends to the outside on the contact plate, the contact plate lower surface is close to two contacts of the symmetrical fixed connection in position of second spring.

In the demoulding process of the workpiece, the lower surface of the workpiece is attached to the inner lower surface of the lower die, so that the workpiece cannot be demoulded smoothly; according to the invention, the contact plate is arranged, when the ejector block moves upwards, the contact plate contacts with the workpiece firstly, the contact plate is subjected to downward displacement under the blocking of the workpiece, the second spring is compressed, when the second spring is compressed until the contact contacts with the switch, the switch is electrified, the water pump is started at the moment, the release agent in the storage box is extracted, the extracted release agent is sprayed outwards from the pipeline outlet at the upper end of the ejector block through the pipeline and is sprayed into the gap between the workpiece and the lower die, the release efficiency is further improved, and the quality of the outer surface of the workpiece is ensured.

Preferably, the top block is a component with an isosceles trapezoid cross section, and the top block does not generate sliding friction with the surface of the lower die in the upward moving process.

The ejector block is contacted with the edge of the lower die in the upward moving process, so that the surface of the ejector block or the lower die is easily damaged by friction, and the ejector block can be used for rapidly helping the lower die to move towards two sides to the maximum extent; the ejecting block is set to be a component with a trapezoidal cross section, the roller is contacted with the lower die, the ejecting distance is in direct proportion to the moving distance of the lower die to two sides in the process that the ejecting block moves upwards, sliding friction is converted into rolling friction, the degree of friction damage is reduced, and the service life of the component is prolonged.

Preferably, the fixed position that clamp plate surface lower extreme is close to the lower mould is connected with vibration mechanism, vibration mechanism includes pillar, connecting cylinder, belt, runner, gear, dials board and second dead lever, the fixed position that clamp plate surface lower extreme is close to the lower mould is connected with the rack, go up two pillars of the symmetry fixedly connected with that mould lower surface edge is close to the clamp plate, two pillar lower extreme fixedly connected with connecting cylinder, connecting cylinder one end is rotated and is connected with the runner, the connecting cylinder other end is rotated and is connected with the gear, the runner surface rotates and is connected with the belt, belt one end is rotated and is connected the gear, gear surface mesh connects the rack, the position fixedly connected with second dead lever that the inside side surface of install bin is close to the runner, second dead lever surface through connection has dials the board.

When the workpiece moves upwards from the interior of the lower die, the local position of the outer surface of the workpiece is tightly connected with the inner surface of the lower die, the outer surface of the workpiece is easily damaged by forced movement, the attractiveness of the workpiece is affected, and burrs and other problems are easily formed on the outer surface of the workpiece; according to the invention, the vibrating mechanism is arranged, the rack and the gear are engaged to move in the upward moving process of the pressing plate, the gear is driven to rotate, the belt is driven to rotate by the rotation of the gear, the rotating wheel drives the shifting plate to rotate in the rotating process, the shifting plate rotates by taking the second fixing plate as the center, the lower end of the shifting plate knocks the lower die to vibrate the lower die, the workpiece is promoted to be separated from the lower die while vibrating, and the problem of burrs caused by forced demolding is solved.

Preferably, the lower end of the shifting plate is fixedly connected with a third spring, and the lower end of the third spring is fixedly connected with a knocking ball.

Because the displacement distance of the pressing plate is limited, the rotating time of the rotating wheel is short, the time for knocking the lower die by the shifting plate is short, and the vibration effect cannot be ensured; according to the invention, the third spring and the knocking ball are arranged at the lower end of the shifting plate, the third spring additionally arranged at the lower end of the shifting plate is utilized, the third spring is shaken when the shifting plate knocks the lower die, and the knocking ball is driven to continue knocking the lower die while the third spring shakes by utilizing the elasticity of the third spring, so that the knocking frequency is further improved, and the demoulding is assisted.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, by arranging the demoulding mechanism, the lower die is fixed during lower punching through the operation of loosening and tightening the lower die, the limit of the lower die is removed after punching, the gap between the workpiece and the lower die is increased during demoulding, the problem that the workpiece is difficult to take out smoothly due to the fact that the workpiece is clamped in the lower die after being punched is avoided, meanwhile, the damage caused by friction between the workpiece and the inner surface of the lower die in the taking-out process is avoided, the quality of the workpiece is improved, and the working efficiency is improved.

2. According to the invention, the vibrating mechanism is arranged, the rotating wheel pokes the poking plate in the rotating process, the poking plate rotates by taking the second fixing plate as a center, the lower end of the poking plate knocks the lower die to vibrate the lower die, the workpiece is promoted to be separated from the lower die while vibrating, and the problem of burrs caused by forced demolding is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the overall construction of the present invention;

FIG. 3 is an enlarged cross-sectional view taken at A of the present invention;

FIG. 4 is a sectional view taken along the line A-A of the present invention;

FIG. 5 is an enlarged cross-sectional view taken at B of the present invention;

FIG. 6 is a top block construction view of the present invention;

FIG. 7 is an enlarged cross-sectional view taken at C of the present invention;

fig. 8 is a view of a third spring structure of the present invention.

In the figure: 1. a base; 11. a lower die; 12. an upper die; 13. pressing a plate; 2. a demolding mechanism; 21. installing a box; 22. a first connecting plate; 23. a second connecting plate; 24. a first spring; 25. a first fixing lever; 26. rotating the rod; 27. a limiting block; 28. an electric telescopic rod; 29. a top block; 211. a roller; 212. a material storage box; 213. a pipeline; 214. a water pump; 215. a switch; 216. a contact plate; 217. a second spring; 218. a contact; 3. a vibration mechanism; 31. a pillar; 32. a connecting cylinder; 33. a belt; 34. a rotating wheel; 35. a gear; 36. dialing a plate; 37. a second fixing bar; 38. knocking and hitting the ball; 39. a third spring; 30. a rack.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, 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, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, the present invention provides a technical solution:

a stamping die for hot stamping forming is shown in figures 1 to 4 and comprises a base 1, wherein the center of the upper surface of the base 1 is connected with a lower die 11 in a sliding manner, the inner surface of the lower die 11 is connected with an upper die 12 in an embedded manner, the edge of the lower surface of the upper die 12 is symmetrically and fixedly connected with two pressing plates 13, and the lower ends of the two pressing plates 13 are connected with a demoulding mechanism 2 in a penetrating manner;

demoulding mechanism 2 includes install bin 21, first connecting plate 22, second connecting plate 23, first spring 24, first dead lever 25, dwang 26 and stopper 27, two the equal through connection of clamp plate 13 lower extreme has install bin 21, the inside lower surface of install bin 21 is close to central point fixedly connected with second connecting plate 23, the first spring 24 of fixedly connected with is put to the central point of surface on the second connecting plate 23, the first connecting plate 22 of fixedly connected with in first spring 24 upper end, first connecting plate 22 one end is rotated and is connected with dwang 26, second connecting plate 23 one end is rotated and is connected with dwang 26, dwang 26 is the cross attitude just dwang 26 surface central point puts through connection and has first dead lever 25, dwang 26 one end sliding connection has stopper 27.

In the prior art, the cooling pipeline 213 is arranged, so that rapid cooling can be realized, a rapid forming effect is achieved, the formed automobile B column can be jacked up by arranging the jacking block 29, the purpose of material transportation is realized, and the working efficiency is improved, the automobile parts formed by stamping in the scheme can be tightly attached to the lower die 11, so that the formed automobile parts are not easy to take out, the arranged jacking block 29 forcibly jacks out the workpiece, the surface of the workpiece is likely to be abraded, or the workpiece is likely to deform and the normal use of the workpiece is affected because the force applied to the surface of the workpiece by the jacking block 29 is not enough to enable the workpiece to get rid of the pressure applied to the workpiece by the lower die 11; the invention adopts the demoulding mechanism 2, when in work, the upper mould 12 moves downwards to punch and form a workpiece, the press plate 13 moves downwards along with the upper mould 12 in the downward moving process, the first connecting plate 22 is pushed to move downwards after contacting the first connecting plate 22, at the moment, the first connecting plate 22 applies pressure on the first spring 24 to compress the spring, the first connecting plate 22 continues to move downwards, the two rotating rods 26 rotate by taking the first fixing rod 25 as a fulcrum, the transverse included angle of the rotating rods 26 is reduced, one end of the rotating rod 26 far away from the first connecting plate 22 is enabled to move towards the lower mould 11, the limit block 27 is simultaneously pushed towards the lower mould 11 to apply pressure on the lower mould 11 so as to counteract the thrust brought by the downward movement of the workpiece along with the upper mould 12, the lower mould 11 does not move when the workpiece is punched and formed, after the punching is finished, the upper mould 12 moves upwards, and the press plate 13 moves upwards, at this moment, the pressure received by the first spring 24 is continuously reduced, and further the first spring 24 is restored to the original length, the first connecting plate 22 is enabled to move upwards, and further the rotation of the two rotating rods 26 is realized, the limiting block 27 moves towards the direction far away from the lower die 11, the side pressure received by the lower die 11 is reduced, the fitting degree of the lower die 11 to a workpiece is reduced, the mode is operated by loosening and tightening the lower die 11, the lower die 11 is fixed during lower stamping, the limitation of the lower die 11 is relieved after stamping, the gap between the workpiece and the lower die 11 during demoulding is increased, the workpiece is prevented from being clamped inside the lower die 11 after being stamped, the problem that the workpiece is difficult to be smoothly taken out is caused, meanwhile, the damage caused by friction between the workpiece and the inner surface of the lower die 11 during taking out is avoided, the quality of the workpiece is improved, and the working efficiency is improved.

As shown in fig. 2 and 5, in one embodiment of the present invention, an electric telescopic rod 28 is fixedly connected to a central position of a lower surface inside the base 1, an upper end of the electric telescopic rod 28 is fixedly connected to a top block 29, and a roller 211 is rotatably connected to a position on a side surface of the top block 29 near the lower mold 11.

After the restriction of the side surface of the lower die 11 is removed, the side surface of the workpiece may be attached to the side surface of the lower die 11, and the lower die 11 may not be smoothly opened, which is not favorable for taking out the workpiece; according to the invention, by arranging the electric push rod and the roller 211, after the limiting block 27 is separated from the outer surface of the lower die 11, the electric telescopic rod 28 is started, the top block 29 moves upwards, and the roller 211 rolls on the surface of the lower die 11 to push the lower die 11 towards two sides, so that the gap between the side surface of a workpiece and the side surface inside the lower die 11 is further increased, the workpiece is conveniently separated from the lower die 11, and the working efficiency is improved.

As an embodiment of the present invention, as shown in fig. 2 and 5, two storage tanks 212 are symmetrically disposed at an inner edge position of the base 1, two pipes 213 are respectively connected to lower ends of outer surfaces of the two storage tanks 212, outer surfaces of the two pipes 213 penetrate through the top block 29 and extend to a position of the lower mold 11, two water pumps 214 are fixedly connected to inner surfaces of the two pipes 213 near the top block 29, the two water pumps 214 are commonly connected to a switch 215, a second spring 217 is fixedly connected to a central position of an upper surface of the switch 215, a contact plate 216 is fixedly connected to an upper end of the second spring 217, an upper end of the contact plate 216 penetrates through the top block 29 and extends to the outside, and two contacts 218 are symmetrically and fixedly connected to a lower surface of the contact plate 216 near the second spring 217.

In the workpiece demoulding process, the lower surface of the workpiece is attached to the inner lower surface of the lower die 11, so that the workpiece cannot be smoothly demoulded; according to the invention, by arranging the contact plate 216, when the top block 29 moves upwards, the contact plate 216 contacts with the workpiece firstly, the contact plate 216 is subjected to downward displacement under the blocking of the workpiece, the second spring 217 is compressed, when the second spring 217 is compressed until the contact 218 contacts with the switch 215, the switch 215 is electrified, the water pump 214 is started at the moment, the release agent in the storage tank 212 is extracted, the extracted release agent is sprayed outwards from the outlet of the pipeline 213 at the upper end of the top block 29 through the pipeline 213 and is sprayed into a gap between the workpiece and the lower die 11, the release efficiency is further improved, and the quality of the outer surface of the workpiece is ensured.

As an embodiment of the present invention, as shown in fig. 6, the top block 29 is a member having an isosceles trapezoid cross section, and the top block 29 does not generate sliding friction with the surface of the lower mold 11 during the upward movement.

The top block 29 is contacted with the edge of the lower die 11 in the upward moving process, so that the friction damage of the top block 29 or the surface of the lower die 11 is easily caused, and meanwhile, the top block 29 can be ensured to quickly help the lower die 11 to move towards two sides to the maximum extent; according to the invention, the top block 29 is set to be a component with a trapezoidal cross section, the roller 211 is contacted with the lower die 11, the ejecting distance is in direct proportion to the moving distance of the lower die 11 to two sides in the upward movement process of the top block 29, the sliding friction is converted into rolling friction, the degree of friction damage is reduced, and the service life of the component is prolonged.

As an embodiment of the present invention, as shown in fig. 2 and 5, a vibration mechanism 3 is fixedly connected to a position of the lower end of the outer surface of the pressing plate 13 close to the lower die 11, the vibration mechanism 3 includes a support 31, a connecting cylinder 32, a belt 33, a rotating wheel 34, a gear 35, a shifting plate 36 and a second fixing rod 37, a rack 30 is fixedly connected to a position of the lower end of the outer surface of the pressing plate 13 close to the lower die 11, two support columns 31 are symmetrically and fixedly connected to a position of the lower surface edge of the upper die 12 close to the pressing plate 13, a connecting cylinder 32 is fixedly connected to the lower ends of the two support columns 31, one end of the connecting cylinder 32 is rotatably connected to the rotating wheel 34, the other end of the connecting cylinder 32 is rotatably connected to the gear 35, the outer surface of the rotating wheel 34 is rotatably connected to the belt 33, one end of the belt 33 is rotatably connected to the gear 35, the outer surface of the gear 35 is engaged with the rack 30, a position of the inner side surface of the installation box 21 close to the rotating wheel 34 is fixedly connected to the second fixing rod 37, the outer surface of the second fixing rod 37 is connected with a shifting plate 36 in a penetrating way.

When the workpiece moves upwards from the interior of the lower die 11, the local position of the outer surface of the workpiece is tightly connected with the inner surface of the lower die 11, the outer surface of the workpiece is easily damaged by forced movement, the aesthetic degree of the workpiece is influenced, and burrs and other problems are easily formed on the outer surface of the workpiece; according to the invention, by arranging the vibration mechanism 3, the rack 30 and the gear 35 are engaged to move in the upward movement process of the pressing plate 13, so that the gear 35 is driven to rotate, the belt 33 is driven to rotate by the rotation of the gear 35, the rotating wheel 34 is driven to rotate by the rotation of the belt 33, the poking plate 36 is poked by the rotating wheel 34 in the rotation process, the poking plate 36 rotates by taking the second fixing plate as a center, the lower end of the poking plate 36 is knocked on the lower die 11, the lower die 11 is vibrated, the workpiece is promoted to be separated from the lower die 11 while vibrating, and the burr problem caused by forced demoulding is reduced.

As an embodiment of the present invention, as shown in fig. 8, a third spring 39 is fixedly connected to a lower end of the dial plate 36, and a striking ball 38 is fixedly connected to a lower end of the third spring 39.

Because the displacement distance of the pressure plate 13 is limited, the rotating time of the rotating wheel 34 is short, so that the time for the shifting plate 36 to strike the lower die 11 is short, and the vibration effect cannot be ensured; according to the invention, the third spring 39 and the knocking ball 38 are arranged at the lower end of the shifting plate 36, the third spring 39 additionally arranged at the lower end of the shifting plate 36 is utilized, the third spring 39 is enabled to swing when the shifting plate 36 knocks the lower die 11, the knocking ball 38 is driven to continuously knock the lower die 11 when the third spring 39 swings by utilizing the elasticity of the third spring 39, the knocking frequency is further improved, and the demoulding is assisted.

The using method comprises the following steps: in the work, the upper die 12 moves downwards to punch the workpiece, the pressing plate 13 moves downwards along with the upper die 12 in the downward moving process, after the upper die 12 contacts the first connecting plate 22, the first connecting plate 22 is pushed to move downwards, at the moment, the first connecting plate 22 applies pressure to the first spring 24 to enable the spring to be compressed, the first connecting plate 22 continues to move downwards, the two rotating rods 26 rotate by taking the first fixing rod 25 as a fulcrum, the transverse included angle of the rotating rods 26 is reduced, one end of the rotating rod 26 far away from the first connecting plate 22 is enabled to move towards the lower die 11, the limiting block 27 is pushed towards the lower die 11 at the same time, pressure is applied to the lower die 11 to counteract the thrust caused by the downward movement of the workpiece along with the upper die 12, the workpiece is ensured not to move when the workpiece is punched, after the punching is finished, the upper die 12 moves upwards, and the pressing plate 13 moves upwards, at the moment, the pressure applied to the first spring 24 continuously reduces, and then the first spring 24 is restored to the original length, the first connecting plate 22 is urged to move upwards, and then the two rotating rods 26 are rotated, and the limit block 27 moves towards the direction away from the lower die 11, so that the side pressure on the lower die 11 is reduced, the degree of adhesion of the lower die 11 to the workpiece is reduced, at the same time, the electric telescopic rod 28 is started, the top block 29 moves upwards, and rolls on the surface of the lower die 11 by using the roller 211, the lower die 11 is pushed towards two sides, and further the gap between the side surface of the workpiece and the side surface inside the lower die 11 is increased, when the top block 29 moves upwards, the contact plate 216 contacts the workpiece first, and the contact plate 216 moves downwards under the blockage of the workpiece, the second spring 217 is compressed, when the second spring 217 is compressed until the contact head 218 contacts the switch 215, the switch 215 is powered on, the water pump 214 is powered on, and at this time, the water pump 214 is started, and the extraction of the release agent in the storage tank 212 is realized, the extracted release agent is sprayed out from an outlet of a pipeline 213 at the upper end of the top block 29 through the pipeline 213, and is sprayed into a gap between a workpiece and the lower die 11 to help the demolding, meanwhile, the pressing plate 13 makes the rack 30 and the gear 35 engage in a moving process, so that the gear 35 rotates, the gear 35 rotates to drive the belt 33 to rotate, the belt 33 rotates to drive the rotating wheel 34 to rotate, the rotating wheel 34 stirs the stirring plate 36 in the rotating process, the stirring plate 36 rotates around the second fixing plate, the lower end of the stirring plate 36 knocks the lower die 11 to vibrate the lower die 11 to help the demolding, the lower end of the stirring plate 36 is additionally provided with a third spring 39, the third spring 39 shakes while the stirring plate 36 knocks the lower die 11, the third spring 39 is driven to continuously knock the lower die 11 while the third spring 39 shakes by the elasticity of the third spring 39, and the knocking ball 38 is driven to further knock the lower die 11, so as to further improve the knocking frequency, and (4) demolding assistance.

The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a stamping die that hot stamping forming used, includes base (1), its characterized in that: the center of the upper surface of the base (1) is connected with a lower die (11) in a sliding manner, the inner surface of the lower die (11) is embedded and connected with an upper die (12), the edge of the lower surface of the upper die (12) is symmetrically and fixedly connected with two pressing plates (13), and the lower ends of the two pressing plates (13) are connected with a demoulding mechanism (2) in a penetrating manner;

the demolding mechanism (2) comprises an installation box (21), a first connecting plate (22), a second connecting plate (23), a first spring (24), a first fixing rod (25), a rotating rod (26) and a limiting block (27), wherein the lower end of the pressing plate (13) is connected with the installation box (21) in a penetrating way, the lower surface inside the installation box (21) is close to the center position and is fixedly connected with the second connecting plate (23), the center position and the upper surface of the second connecting plate (23) is fixedly connected with the first spring (24), the upper end of the first spring (24) is fixedly connected with the first connecting plate (22), one end of the first connecting plate (22) is rotatably connected with the rotating rod (26), one end of the second connecting plate (23) is rotatably connected with the rotating rod (26), the rotating rod (26) is in a crossing state, and the center position of the outer surface of the rotating rod (26) is connected with the first fixing rod (25) in a penetrating way, and one end of the rotating rod (26) is slidably connected with a limiting block (27).

2. The press die for hot stamping according to claim 1, wherein: the utility model discloses a base, including base (1), electric telescopic handle (28), kicking block (29), position rotation that kicking block (29) side surface is close to lower mould (11) is connected with gyro wheel (211).

3. The press die for hot stamping according to claim 2, wherein: base (1) inside edge position symmetry is provided with two storage tanks (212), two storage tank (212) surface lower extreme all through connection has two pipelines (213), two pipeline (213) surface runs through kicking block (29) and extends to the position of lower mould (11), two pipeline (213) internal surface is close to two water pump (214) of fixed position of kicking block (29), two water pump (214) are connected with switch (215) jointly, switch (215) upper surface central point puts fixedly connected with second spring (217), second spring (217) upper end fixedly connected with contact plate (216), contact plate (216) upper end runs through kicking block (29) and extends to the outside, the position symmetry fixedly connected with two contacts (218) that contact plate (216) lower surface is close to second spring (217).

4. The press die for hot stamping according to claim 3, wherein: the top block (29) is a component with an isosceles trapezoid cross section, and the top block (29) does not generate sliding friction with the surface of the lower die (11) in the upward moving process.

5. The press die for hot stamping according to claim 1, wherein: the vibration mechanism (3) is fixedly connected with the position of the lower end of the outer surface of the pressing plate (13) close to the lower die (11), the vibration mechanism (3) comprises a support column (31), a connecting cylinder (32), a belt (33), a rotating wheel (34), a gear (35), a shifting plate (36) and a second fixing rod (37), the position of the lower end of the outer surface of the pressing plate (13) close to the lower die (11) is fixedly connected with a rack (30), the position of the lower edge of the lower surface of the upper die (12) close to the pressing plate (13) is symmetrically and fixedly connected with two support columns (31), the lower ends of the two support columns (31) are fixedly connected with the connecting cylinder (32), one end of the connecting cylinder (32) is rotatably connected with the rotating wheel (34), the other end of the connecting cylinder (32) is rotatably connected with the gear (35), the outer surface of the rotating wheel (34) is rotatably connected with the belt (33), one end of the belt (33) is rotatably connected with the gear (35), the outer surface of the gear (35) is meshed with the rack (30), a second fixing rod (37) is fixedly connected to the side surface of the inner portion of the installation box (21) close to the position of the rotating wheel (34), and a shifting plate (36) is connected to the outer surface of the second fixing rod (37) in a penetrating mode.

6. The press die for hot stamping according to claim 1, wherein: the lower end of the shifting plate (36) is fixedly connected with a third spring (39), and the lower end of the third spring (39) is fixedly connected with a knocking ball (38).

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