CN116037768A

CN116037768A - Mould structure capable of bending negative angle at one time and preventing rebound

Info

Publication number: CN116037768A
Application number: CN202211338612.2A
Authority: CN
Inventors: 卢前进; 沈晋辉; 王帅平; 卢旭东; 李娟�
Original assignee: Suzhou Shuangqisi Mould Equipment Co ltd
Current assignee: Suzhou Shuangqisi Mould Equipment Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-05-02

Abstract

The invention belongs to the technical field of mold processing, and discloses a mold structure capable of bending a negative angle at one time and preventing rebound, which comprises a bottom plate, a processing table and a top plate, wherein an air cylinder is arranged at the top of the top plate, the processing table is arranged on the bottom plate, two lower molds are connected to the top of the processing table in a sliding manner, an upper mold and two slotting tools are respectively arranged at the bottom of the top plate, two supporting blocks are fixedly connected to the top of the processing table, and two pull rods are connected to the lower molds in a threaded manner. According to the invention, bending and negative angle pushing operations are integrated, the production efficiency is improved, the number of processing equipment and workers is reduced, the clamping phenomenon of a workpiece and an upper die head in the demolding process can be reduced, the stripping is convenient, the workpiece can be limited in the stripping process, the collision phenomenon of the workpiece with a lower die and a processing table is reduced, and the quality of the workpiece is ensured.

Description

Mould structure capable of bending negative angle at one time and preventing rebound

Technical Field

The invention relates to the technical field of mold processing, in particular to a mold structure capable of bending a negative angle at one time and preventing rebound.

Background

Stamping dies are a special piece of process equipment that processes materials (metal or non-metal) into parts (or semi-finished products) in cold stamping processes, known as cold stamping dies.

The existing stamping die has the following defects when stamping a workpiece to be bent:

1. when bending and stamping are carried out, the bending is carried out for 90 degrees firstly, then a structure for pushing a negative angle is added to push the negative angle, and the two working procedures affect the production efficiency and increase the number of processing equipment and staff;

2. in the completion process, the workpiece in the demolding process is not easy to limit, the phenomenon that the workpiece directly falls onto a die and a processing table is easy to occur, the collision phenomenon occurs, and the quality of the workpiece is influenced;

3. in the demoulding process, the clamping phenomenon of the bending workpiece and the die head easy to put on is generated, and the bending workpiece and the die head easy to put on are required to be separated manually by workers, so that the labor capacity of the workers is increased, and the production efficiency is influenced.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a mould structure capable of bending at one time to overcome the defects of the background technology.

In order to solve the problems, the invention adopts the following technical scheme.

The utility model provides a mould structure of negative angle of once bending and rebound prevention, includes bottom plate, processing platform and roof, the cylinder is installed at the top of roof, processing platform installs to on the bottom plate, the top sliding connection of processing platform has two lower moulds, go up mould and two slotting tools are installed respectively to the bottom of roof, the top fixedly connected with two supporting shoes of processing platform, threaded connection has two pull rods on the lower mould, the one end of pull rod runs through and sliding connection to the outside of supporting shoe, the middle part cover of pull rod is equipped with reset spring, reset spring's one end fixedly connected with to the outside of pull rod, reset spring's the other end fixedly connected with to the outside of supporting shoe, the outside of slotting tools contacts with the outside of lower mould, go up the inside left and right sides of mould and lower mould all is provided with the inclination, the contact surface of lower mould and slotting tool also is provided with the inclination, the inclination degree is ten degrees, the top fixedly connected with two angle blocks of lower mould, be provided with on the angle blocks of bending over, be provided with the lower mould and take off the material subassembly, be provided with the roof on the upper die.

As a further description of the above technical solution:

the limiting component comprises a hinging pipe, a sliding rod, an elastic spring and a magnet, wherein one end of the hinging pipe is hinged to the inside of the corner block, one end of the sliding rod penetrates through the inside of the hinging pipe and is in sliding connection with the inside of the hinging pipe, one end of the elastic spring is fixedly connected to the inside of the hinging pipe, the other end of the elastic spring is fixedly connected to the sliding rod, the other end of the sliding rod is fixedly connected with the outer side of the magnet, and the magnet is located inside the corner block.

As a further description of the above technical solution:

the heat conduction assembly comprises a heat absorption block, a heat conduction rod and a heat radiation plate, wherein the heat absorption block is embedded into the lower die, one end of the heat conduction rod penetrates through and extends to the inside of the processing table, one end of the heat conduction rod is fixedly connected to the outer side of the heat radiation plate, and the other end of the heat conduction rod is fixedly connected to the inside of the heat absorption block.

As a further description of the above technical solution:

the stripping assembly comprises two piston plates and two guide pipes, the outer sides of the piston plates are fixedly connected with the outer sides of the heat absorption blocks, the outer sides of the piston plates are slidably connected to the inside of the processing table, one ends of the guide pipes penetrate through the top plate and are fixedly connected to the inside of the processing table, the other ends of the guide pipes penetrate through the top plate and extend to the inside of the upper die, and the guide pipes are mounted at one ends of the inside of the upper die, are positioned above the lower die and are inclined.

As a further description of the above technical solution:

the lower die is rotationally connected with a guide roller, and the guide roller is tangential to the inclination angle of the lower die.

As a further description of the above technical solution:

the processing bench is fixedly connected with a fixed frame, the outer side of the fixed frame is in contact with the outer side of the lower die, a blanking disc is connected inside the fixed frame in a sliding mode, a nitrogen spring is installed on the outer side of the blanking disc, and one end of the nitrogen spring is installed on the outer side of the bottom plate.

As a further description of the above technical solution:

the refrigerator is embedded in the front of the processing table, and the water supplementing pipe communicated with the front of the processing table is fixedly connected with the front of the processing table.

As a further description of the above technical solution:

the top fixedly connected with two stopper of processing platform, the stopper is in between lower mould and the supporting shoe, the width of stopper is the same with the width of slotting tool bottom.

As a further description of the above technical solution:

the middle part of the conduit is made of a plastic hose.

Compared with the prior art, the invention has the advantages that:

(1) The cylinder is adopted to operate, the top plate and the upper die are driven to move downwards, the slotting tool is abutted against the lower die in the moving process, the two lower dies are relatively moved, the upper die after the movement is matched, the workpiece is punched, the workpiece is in a die closing state, the inclination degree of the inclination angle is ten degrees, so that the internal angle of the workpiece after bending is in an acute angle at this time, namely the bending and negative angle pushing operation is completed through single punching, the working procedure is reduced, after the punching is completed, the cylinder is reset, and the workpiece and the lower die are separated, and then rebound to a standard folding angle.

(2) According to the scheme, the magnet is magnetically adsorbed on the outer side of the workpiece, the outer side of the workpiece is pre-fixed, after stamping is completed, the magnet is magnetically connected with the left side and the right side of the workpiece after forming, and the workpiece is limited and supported by the blanking disc matched with the bottom support, so that the phenomenon that the workpiece falls off due to falling of materials and the collision phenomenon of the lower die and the processing table is reduced.

(3) This scheme is the drawing of patterns state promptly when two lower moulds move in opposite directions, and thus the piston board will follow the motion of exothermic plate, and in the motion process, the piston board will extrude the inside gas of processing platform along the pipe, follow the pipe and incline to blow out to the work piece inner wall later, push away the work piece and exert the blowing, reduce its and go up the mould and take place the block phenomenon, be convenient for take off the material smoothly.

Drawings

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

FIG. 2 is a schematic front perspective view of the structure of the processing table and the refrigerator of the present invention;

FIG. 3 is a schematic view of a bottom cross-sectional view of a stop assembly and rear left corner block structure of the present invention;

fig. 4 is a front perspective view of the corner block structure of the present invention.

The reference numerals in the figures illustrate:

1. a bottom plate; 2. a processing table; 3. a top plate; 4. a lower die; 5. an upper die; 6. a slotting tool; 7. a stripping assembly; 71. a piston plate; 72. a conduit; 8. a limit component; 81. a hinged tube; 82. a slide bar; 83. an elastic spring; 84. a magnet; 9. a heat conducting component; 91. a heat absorbing block; 92. a heat conduction rod; 93. a heat release plate; 10. a pull rod; 11. a return spring; 12. a corner block; 13. a support block; 14. a fixed frame; 15. a blanking disc; 16. a nitrogen spring; 17. a guide roller; 18. a limiting block; 19. a refrigerator.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention;

referring to fig. 1-4, in the present invention, a mold structure for bending negative angle and rebound prevention at one time includes a bottom plate 1, a processing table 2 and a top plate 3, wherein an air cylinder is mounted at the top of the top plate 3, the processing table 2 is mounted on the bottom plate 1, two lower molds 4 are slidably connected at the top of the processing table 2, an upper mold 5 and two insert knives 6 are respectively mounted at the bottom of the top plate 3, two supporting blocks 13 are fixedly connected at the top of the processing table 2, two pull rods 10 are threadedly connected on the lower mold 4, one ends of the pull rods 10 penetrate and are slidably connected to the outer sides of the supporting blocks 13, a reset spring 11 is sleeved at the middle part of the pull rods 10, one ends of the reset spring 11 are fixedly connected to the outer sides of the pull rods 10, the other ends of the reset spring 11 are fixedly connected to the outer sides of the supporting blocks 13, the outer sides of the insert knives 6 are in contact with the outer sides of the lower mold 4, the left and right sides of the inner parts of the lower mold 4 are respectively provided with an inclination angle, the contact surfaces of the lower mold 4 and the insert knives 6 are also provided with an inclination angle, the inclination angle is ten degrees, the top of the lower mold 4 is fixedly connected with two bending blocks 12, the upper bending blocks 12 are provided with upper die components 8, and a thermal conduction component 9 is arranged on the upper bending components 3.

The limiting component 8 comprises a hinged pipe 81, a sliding rod 82, an elastic spring 83 and a magnet 84, wherein one end of the hinged pipe 81 is hinged to the inside of the corner block 12, one end of the sliding rod 82 penetrates through the hinged pipe 81 and is connected to the inside of the hinged pipe 81 in a sliding mode, one end of the elastic spring 83 is fixedly connected to the inside of the hinged pipe 81, the other end of the elastic spring 83 is fixedly connected to the sliding rod 82, the other end of the sliding rod 82 is fixedly connected with the outer side of the magnet 84, and the magnet 84 is located inside the corner block 12.

The processing bench 2 is fixedly connected with a fixed frame 14, the outer side of the fixed frame 14 is contacted with the outer side of the lower die 4, a blanking disc 15 is slidably connected in the fixed frame 14, a nitrogen spring 16 is arranged on the outer side of the blanking disc 15, and one end of the nitrogen spring 16 is arranged on the outer side of the bottom plate 1.

In the invention, the bottom plate 1 is adopted to support the whole device, when the stamping operation is carried out, a workpiece can be placed above the lower die 4, the workpiece is positioned between four corner blocks 12, the bottom of the workpiece is contacted with the blanking disc 15, at the moment, the magnet 84 in the limiting component 8 is influenced by magnetic force, the sliding rod 82 is driven to slide, the magnet 84 and the outer side of the workpiece are magnetically adsorbed, the workpiece is pre-fixed, then the cylinder is adopted to operate, the top plate 3 and the upper die 5 are driven to move downwards, in the moving process, the slotting tool 6 is abutted against the lower die 4, the two lower dies 4 are relatively moved, the upper die 5 matched with the movement is used for stamping the workpiece, the workpiece is in a die clamping state, and because the inclination degree of the inclination angle is ten degrees, the internal angle of the workpiece after bending is at an acute angle at the moment, namely, the bending and negative angle pushing operation is completed by single stamping, and the working procedure is reduced, in the process of workpiece compression deformation, the magnet 84 is continuously adsorbed with the outer side of the workpiece, only the adsorption position is changed, the movable property of the hinging pipe 81 is adopted, so that the magnet 84 is adsorbed with the outer side of the workpiece at more angles, in the process of clamping, the heat conduction assembly 9 is used for guiding out the heat in the lower die 4, then when stamping is completed, the cylinder drives the top plate 3 to reset, after resetting, the stripper assembly 7 can be used for driving the workpiece to slightly move, the clamping phenomenon of the workpiece and the upper die 5 is reduced, the stripping is convenient, at the moment, the workpiece is separated from the lower die 4 and then is rebounded to the standard folding angle, at the moment, the nitrogen spring 16 is used for pushing the blanking disc 15 to reset, so that the workpiece is driven to strip the workpiece, at the moment, the magnet 84 is magnetically connected with the left side and the right side of the workpiece after forming, and matched with the blanking disc 15 of the bottom support, the workpiece is limited and supported, and the falling of the workpiece due to stripping and the lower die 4 are reduced The processing table 2 is knocked, and meanwhile, the reset spring 11 at the outer side of the supporting block 13 pulls the pull rod 10 to drive the lower die 4 to move to the original position, so that the next stamping operation is facilitated.

Please refer to fig. 1, wherein: the heat conduction assembly 9 comprises a heat absorption block 91, a heat conduction rod 92 and a heat release plate 93, wherein the heat absorption block 91 is embedded into the lower die 4, one end of the heat conduction rod 92 penetrates through and extends to the inside of the processing table 2, one end of the heat conduction rod 92 is fixedly connected to the outer side of the heat release plate 93, and the other end of the heat conduction rod 92 is fixedly connected to the inside of the heat absorption block 91.

In the invention, the heat absorption block 91 is adopted to absorb the heat in the lower die 4, and then the heat is transferred to the heat release plate 93 along the heat conduction rod 92, and the heat release plate 93 is cooled by matching with the water source in the processing table 2, so that the internal temperature of the lower die 4 is reduced, and the service life of the lower die 4 is prolonged.

Please refer to fig. 1, wherein: the stripping assembly 7 comprises two piston plates 71 and two guide pipes 72, the outer sides of the piston plates 71 are fixedly connected with the outer sides of the heat absorption blocks 91, the outer sides of the piston plates 71 are slidably connected to the inside of the processing table 2, one ends of the guide pipes 72 penetrate through the top plate 3 and extend to the inside of the upper die 5, and the other ends of the guide pipes 72 penetrate through the top plate 3 and extend to the inside of the upper die 5.

In the invention, when the two lower dies 4 move oppositely, the demolding state is adopted at the moment, so that the piston plate 71 moves along with the heat release plate 93, during the movement, the piston plate 71 extrudes gas in the processing table 2 along the guide pipe 72, then the gas is obliquely blown out of the inner wall of the workpiece along the guide pipe 72, the workpiece is pushed to exert blowing force, the clamping phenomenon of the workpiece and the upper die 5 is reduced, and smooth stripping is facilitated.

Please refer to fig. 1, wherein: the lower die 4 is rotationally connected with a guide roller 17, and the guide roller 17 is tangential with the inclination angle of the lower die 4.

In the invention, the guide roller 17 is adopted, so that the workpiece can be conveniently and smoothly lowered and bent, and the stamping inclination of the workpiece is ensured because the guide roller 17 is tangential with the inclination angle on the lower die 4,

please refer to fig. 1-2, wherein: the refrigerator 19 is embedded in the front of the processing table 2, and the water supplementing pipe communicated with the front of the processing table 2 is fixedly connected with the front of the processing table.

In the invention, the refrigerator 19 is adopted, so that the temperature of the water source in the processing table 2 can be reduced, the cooling effect on the lower die 4 is improved, and a user can periodically use a water supplementing pipe to supplement the water source in the processing table 2.

Please refer to fig. 1, wherein: the top of the processing table 2 is fixedly connected with two limiting blocks 18, the limiting blocks 18 are positioned between the lower die 4 and the supporting blocks 13, and the width of the limiting blocks 18 is the same as that of the bottom of the slotting tool 6.

In the invention, the limit block 18 is adopted, so that the phenomenon of excessive movement of the lower die 4 can be reduced, the limit is carried out, the inclination angle of the slotting tool 6 is guaranteed to be in better conflict with the inclination angle on the lower die 4 in the descending process, and the lower die 4 is driven.

Please refer to fig. 1-4, wherein: the middle of the conduit 72 is made of plastic hose.

In the present invention, since the middle portion of the guide duct 72 is made of a plastic hose, the guide duct 72 is not affected when the top plate 3 moves downward.

It should be noted that, the circuit connection relation of each device in the present application belongs to simple series connection and parallel connection circuits, and there is no innovation point in circuit connection, so that those skilled in the art can easily realize the circuit connection, and the circuit connection relation belongs to the prior art and is not repeated.

The scheme adopts the bottom plate 1 to play a supporting role on the whole device, when in stamping operation, a workpiece can be placed above the lower die 4, the workpiece is positioned between four corner blocks 12, the bottom of the workpiece is contacted with the blanking disc 15, at the moment, the magnet 84 in the limiting component 8 is influenced by magnetic force, the sliding rod 82 is driven to slide, the magnet 84 is magnetically adsorbed with the outer side of the workpiece, the workpiece is pre-fixed, the offset phenomenon of the workpiece is reduced, the forming effect is influenced, then the cylinder is adopted to operate, the top plate 3 and the upper die 5 are driven to move downwards, in the moving process, the slotting tool 6 is abutted against the lower die 4, the two lower dies 4 are relatively moved, the upper die 5 after the matching movement is matched, the workpiece is stamped, the workpiece is in a die clamping state, and the inclination degree of the inclination angle is ten degrees, so that the internal angle of the workpiece after bending is at an acute angle at the moment, namely the single stamping is completed and negative angle pushing operation, the reduction procedure, and in the compression deformation process of the workpiece, the magnet 84 is continuously adsorbed with the outer side of the workpiece, only the adsorption position is changed, the movable property of the hinging pipe 81 is adopted, so that the magnet 84 is adsorbed with the outer side of the workpiece at a larger angle, in the mold clamping process, the heat absorption block 91 is adopted to absorb the heat in the lower mold 4, then the heat is transferred to the heat release plate 93 along the heat conduction rod 92, the heat release plate 93 is cooled by matching with the water source in the processing table 2, so that the internal temperature of the lower mold 4 is reduced, the service life of the lower mold 4 is prolonged, then when the stamping is completed, the cylinder drives the top plate 3 to reset, after reset, the workpiece can be driven to slightly move by the stripping assembly 7, the clamping phenomenon of the workpiece and the upper mold 5 is reduced, the stripping is facilitated, the workpiece is separated from the lower mold 4 at the moment, the rebound to the standard folding angle is achieved, and at the moment, the nitrogen spring 16 pushes the lower material tray 15 to reset, the lower die 4 is driven to move to the original position by the reset spring 11 at the outer side of the supporting block 13, so that the next stamping operation is facilitated, when the two lower dies 4 move oppositely, the demolding state is realized, the piston plate 71 moves along with the heat release plate 93, in the moving process, the piston plate 71 extrudes gas inside the processing table 2 along the guide pipe 72, then the inner wall of the workpiece is obliquely blown out along the guide pipe 72, the workpiece is pushed to exert blowing force, the clamping phenomenon between the workpiece and the upper die 5 is reduced, smooth stripping is facilitated, the excessive movement phenomenon of the lower die 4 can be reduced, the limiting is performed, the self inclination angle of the slotting tool 6 in the descending process is ensured to be in better contradiction with the inclination angle on the lower die 4, and the driving of the lower die 4 is completed;

the whole device integrates bending and negative angle pushing operation, improves production efficiency, reduces the number of processing equipment and workers, reduces the clamping phenomenon of a workpiece and an upper die 5 in the demolding process, facilitates stripping, can limit the workpiece in the stripping process, reduces the collision phenomenon of the workpiece with a lower die 4 and a processing table 2, and ensures the quality of the workpiece.

The above description is only of the preferred embodiments of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.

Claims

1. The utility model provides a mould structure of negative angle of once bending and anti-rebound, includes bottom plate (1), processing platform (2) and roof (3), the cylinder is installed at the top of roof (3), its characterized in that: the processing bench (2) is arranged on the bottom plate (1), two lower dies (4) are slidably connected to the top of the processing bench (2), an upper die (5) and two slotting tools (6) are respectively arranged at the bottom of the top plate (3), two supporting blocks (13) are fixedly connected to the top of the processing bench (2), two pull rods (10) are connected to the lower dies (4) in a threaded manner, one ends of the pull rods (10) penetrate through and are slidably connected to the outer sides of the supporting blocks (13), a reset spring (11) is sleeved in the middle of the pull rods (10), one ends of the reset spring (11) are fixedly connected to the outer sides of the pull rods (10), the other ends of the reset spring (11) are fixedly connected to the outer sides of the supporting blocks (13), the outer sides of the slotting tools (6) are in contact with the outer sides of the lower dies (4), the left side and the right side of the upper die (5) are respectively provided with an inclination angle, the contact surface of the lower dies (6) is provided with the inclination angle, the contact surface of the lower dies (4) is also provided with the inclination angle (6), the inclination angle of the upper die (4) is also provided with the inclination angle (12), the upper die assembly (12) is fixedly provided with the inclination angle (12), and a stripping component (7) is arranged on the top plate (3).

2. A negative angle one-time bending and rebound prevention die structure as claimed in claim 1, wherein: limiting component (8) are including articulated pipe (81), slide bar (82), elasticity spring (83) and magnetite (84), the inside of articulated pipe (81) one end articulated to dog-ear piece (12), the inside of articulated pipe (81) is run through and sliding connection to one end of slide bar (82), the inside of one end fixed connection to articulated pipe (81) of elasticity spring (83), the other end fixed connection of elasticity spring (83) is on slide bar (82), the outside fixed connection of the other end and magnetite (84) of slide bar (82), magnetite (84) are in the inside of dog-ear piece (12).

3. A negative angle one-time bending and rebound prevention die structure as claimed in claim 1, wherein: the heat conduction assembly (9) comprises a heat absorption block (91), a heat conduction rod (92) and a heat release plate (93), wherein the heat absorption block (91) is embedded into the lower die (4), one end of the heat conduction rod (92) penetrates through and extends to the inside of the processing table (2), one end of the heat conduction rod (92) is fixedly connected to the outer side of the heat release plate (93), and the other end of the heat conduction rod (92) is fixedly connected to the inside of the heat absorption block (91).

4. A negative angle one-time bending and rebound prevention die structure as claimed in claim 1, wherein: the stripping assembly (7) comprises two piston plates (71) and two guide pipes (72), the outer sides of the piston plates (71) are fixedly connected with the outer sides of the heat absorption blocks (91), the outer sides of the piston plates (71) are slidably connected to the inside of the processing table (2), one ends of the guide pipes (72) penetrate through the top plate (3) and extend to the inside of the upper die (5), and the other ends of the guide pipes (72) penetrate through the top plate (3) and extend to the inside of the upper die (5), and the guide pipes (72) are mounted at one end of the inside of the upper die (5) and are located above the lower die (4) and are inclined.

5. A negative angle one-time bending and rebound prevention die structure as claimed in claim 1, wherein: the lower die (4) is rotationally connected with a guide roller (17), and the guide roller (17) is tangential with the inclination angle of the lower die (4).

6. A negative angle one-time bending and rebound prevention die structure as claimed in claim 1, wherein: fixed frame (14) is fixedly connected with on processing platform (2), the outside of fixed frame (14) and the outside contact of lower mould (4), the inside sliding connection of fixed frame (14) has unloading dish (15), nitrogen spring (16) are installed in the outside of unloading dish (15), the outside of bottom plate (1) is installed to one end of nitrogen spring (16).

7. A negative angle one-time bending and rebound prevention die structure as claimed in claim 1, wherein: the front of the processing table (2) is embedded with a refrigerator (19), and the front of the processing table (2) is fixedly connected with a water supplementing pipe communicated with the processing table.

8. A negative angle one-time bending and rebound prevention die structure as claimed in claim 1, wherein: the top of processing platform (2) fixedly connected with two stopper (18), stopper (18) are in between lower mould (4) and supporting shoe (13), the width of stopper (18) is the same with the width of spigot cutter (6) bottom.

9. The negative angle one-time bending and rebound prevention mold structure of claim 4, wherein: the middle part of the conduit (72) is made of a plastic hose.