CN215879537U - Stamping die convenient for demolding - Google Patents

Abstract

The utility model belongs to the technical field of stamping die and specifically relates to a stamping die who makes things convenient for drawing of patterns is related to, it includes the mould and is used for carrying out the bearing part that bears to the mounting panel, the bearing part is located the below of mould, go up the briquetting that one side fixedly connected with of mould orientation bearing part is used for rolling over the curb plate, a curb plate corresponds a briquetting, the bearing part includes four top vaulting pieces, and four top vaulting pieces set up around the geometric centre line circumference of last mould, top vaulting piece one side of going up the geometric centre line dorsad is parallel rather than relative briquetting, top vaulting piece is opened one side of going up the geometric centre line dorsad and is had and be used for holding turn-ups holding tank, the below of bearing part still is equipped with and is used for driving four top vaulting pieces and follows the drive division of the motion of the geometric centre line direction of mould along the perpendicular to respectively. This application has the advantage of convenient drawing of patterns.

Description

Stamping die convenient for demolding

Technical Field

The application relates to the field of stamping dies, in particular to a stamping die convenient for demolding.

Background

The stamping die is a special process equipment for processing materials into parts (or semi-finished products) in the stamping process. The bending die belongs to one of stamping dies, and when the bending die is used, a sheet blank or other blanks are bent and deformed along a straight line, so that a workpiece with a certain angle and shape is obtained.

Referring to fig. 1, the mounting plate includes a middle plate 28, side plates 29, and flanges 30, the middle plate 28 is disposed in a square shape, four sides of the middle plate 28 correspond to the side plates 29, and the flanges 30 are located at edges of one side of the side plates 29 away from the middle plate 28.

In the process of manufacturing the mounting plate into a workpiece, the mounting plate needs to be pressed by a pressing die. During stamping, the joints of the four side plates 29 and the middle plate 28 are simultaneously turned over, the stamped side plates 29 are perpendicular to the middle plate 28, and the turned edges 30 are positioned in a cavity enclosed by the four side plates 29.

After the stamping is finished, the workpiece needs to be taken out of the stamping die, however, due to the existence of the flanging, the demoulding process of the stamped workpiece is very complicated, the operation is inconvenient, and obvious defects exist.

SUMMERY OF THE UTILITY MODEL

In order to improve the inconvenient problem of work piece drawing of patterns, this application provides a stamping die of convenient drawing of patterns.

The application provides a stamping die of convenient drawing of patterns adopts following technical scheme:

a stamping die convenient for demolding comprises an upper die and a bearing part for bearing a mounting plate, wherein the bearing part is positioned below the upper die, one side of the upper die, facing the bearing part, is fixedly connected with a pressing block for turning over a side plate, and one side plate corresponds to one pressing block; the bearing part comprises four top supporting blocks, the four top supporting blocks are circumferentially arranged around the geometric center line of the upper die, one side of the top supporting block, which faces away from the geometric center line of the upper die, is parallel to the relative pressing block, one side of the top supporting block, which faces away from the geometric center line of the upper die, is provided with a containing groove for containing a flange, and the lower part of the bearing part is also provided with a driving part for driving the four top supporting blocks to move along the direction of the geometric center line of the upper die in a perpendicular mode respectively.

Through adopting above-mentioned technical scheme, before not punching press, four kicking blocks keep away from each other, and the staff is manual to be placed the mounting panel on four kicking blocks. During punching, the upper die drives the pressing block to move downwards, in the process of downward movement of the pressing block, the side plate is turned downwards, and the turned edge is turned into the accommodating groove. At this moment, the upper die rises and firstly resets, then under the action of the driving part, the four top supporting blocks are close to the geometric center line of the upper die, the flanging is separated from the accommodating groove, the distance is generated between the top supporting blocks and the side plates, the mounting plate can be vertically taken out at this moment, and the demolding process is more convenient. This application is through the components of a whole that can function independently setting of supporting part, under the effect of drive division, homoenergetic produces the interval that supplies the turn-ups to demold smoothly between four top supporting blocks and the curb plate that corresponds to it is more convenient to make the drawing of patterns process.

Optionally, the driving part comprises a bottom plate and a rotating disc positioned between the bottom plate and the bearing part, the lower surface of the bottom plate is connected with a driving motor, the output shaft of the driving motor penetrates through the bottom plate and is connected with the rotating disc, four sliding grooves are formed in the upper surface of the bottom plate and are uniformly arranged in the circumferential direction around the geometric center line of the bottom plate, the length direction of the sliding grooves is vertical to the output shaft of the driving motor, one sliding groove corresponds to one jacking block, the lower surface of the supporting block is connected with a sliding block which slides in the sliding groove, the rotating disc is provided with an arc-shaped offset groove, four offset grooves are arranged on the rotating disc in the circumferential direction around the output shaft of the driving motor, the distances from the two ends of each offset groove to the output shaft of the driving motor are unequal, the lower surface of the jacking block is connected with an offset rod which is inserted in the offset groove and is in sliding fit with the offset groove.

Through adopting above-mentioned technical scheme, before the drawing of patterns, the staff starts driving motor, and driving motor's output shaft drives the rolling disc and rotates, and when the rolling disc rotated, the skew pole removed to the one end far away from apart from the nearer one end of driving motor output shaft in the skew inslot, and the skew pole drives the ejector pad along the direction motion of keeping away from the driving motor output shaft, and four ejector pads are kept away from each other. After the installation plate is punched, the driving motor is started again, the output shaft of the driving motor drives the rotating disc to rotate reversely, the rotating disc drives the offset rod in the offset groove to move, the offset rod moves from one end, far away from the output shaft of the driving motor, of the offset groove to one end, close to the output shaft of the driving motor, and the offset rod drives the jacking block to move along the direction close to the axis of the output shaft of the driving motor. By adopting the mode, through the matching of the rotating disc and the offset rod, the four jacking blocks can be synchronously driven to be away from and close to each other, and therefore the distance between each jacking block and the corresponding side plate can be generated to enable the flanging to be separated.

Optionally, be equipped with the clamp plate between last mould and the bearing part, the upper surface of going up the mould is opened there is a plurality of mounting hole, the carrier bar is worn to be equipped with by vertical slip in the mounting hole, the relative carrier bar's of upper surface position of clamp plate position is opened there is the fixed orifices, the bottom of carrier bar is passed and is connected in the fixed orifices on the mould, the carrier bar is located the pole body in the mounting hole and is fixed the cover and be equipped with the carrier ring, carrier ring and mounting hole sliding fit, the cover is equipped with pressure spring one on the carrier bar, the lower surface of mould is gone up in the one end conflict of pressure spring one, the hole bottom of the fixed orifices is contradicted to the other end.

Through adopting above-mentioned technical scheme, when last mould downstream, the clamp plate at first contacts the intermediate lamella, goes up the in-process of mould continuation downstream, goes up the mould and impresses pressure spring one in the fixed orifices, and pressure spring one pressurized produces thrust, compresses tightly the clamp plate on the intermediate lamella to this has reduced when briquetting presses the curb plate, the possibility that the intermediate lamella is uplifted.

Optionally, the cross section of the supporting block is in a right-angle isosceles triangle shape, and the right angle of the cross section of the supporting block (6) points to the geometric center line of the upper die.

By adopting the technical scheme, when the four top supporting blocks are arranged to be close to each other, the four top supporting blocks can be spliced into a square shape, the four top supporting blocks are more compact in folding, the distance between the top supporting blocks and the side plate is larger, and the mounting plate can realize demoulding more conveniently.

Optionally, the holding tank is opened towards one side of last mould geometric centre line has two locating holes, and the line level between two locating holes sets up, the opening part of locating hole is connected with the closing cap, it has the locating lever to slide in the locating hole, the locating lever passes the closing cap and extends to outside the locating hole, the locating lever is located the one end fixedly connected with stopper in the locating hole, and two locating levers are located fixedly connected with between the outer one end of locating hole and are used for propping turn-ups's back-stay strip, the cover is equipped with pressure spring two on the locating lever, the one end conflict closing cap of pressure spring two, the other end is contradicted and is propped the stay strip.

Through adopting above-mentioned technical scheme, when four kicking blocks closed each other, the friction between kicking block and the mounting panel may drive the mounting panel and take place to remove. The second pressure spring and the top stay are arranged to position the mounting plate, so that the possibility that the mounting plate moves due to friction is reduced when the top stay moves, and the possibility that the flanging strikes the die to cause damage is reduced when the mounting plate is demoulded.

Optionally, the upper surface of the bottom plate is bolted with a plurality of steel ball rollers, and the rotating disc is pressed on the steel ball rollers.

Through adopting above-mentioned technical scheme, the steel ball gyro wheel plays supporting role to the rolling disc, makes the rolling disc press more smoothly when rotating on the steel ball gyro wheel simultaneously.

Optionally, one side of the bottom plate facing the upper die is fixedly connected with a plurality of guide pillars vertically arranged, the lower surface of the upper die is fixedly connected with a guide sleeve, and the upper die and the guide sleeve are both slidably sleeved on the guide pillars.

By adopting the technical scheme, the sliding fit of the guide sleeve and the guide pillar plays a role in guiding the movement of the upper die, and the accuracy of the turning position of the connecting part of the middle plate and the side plate is improved.

Optionally, the sliding groove and the sliding block are both arranged in a T shape.

Through adopting above-mentioned technical scheme, the sliding fit of sliding groove and sliding block plays the guide effect to the motion of top vaulting piece, and "T" type setting has improved the stability of top vaulting piece motion simultaneously, has reduced the top vaulting piece and has taken place the askew possibility of twisting of slope in the motion process.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the split arrangement of the bearing part, under the action of the driving part, the four top supporting blocks and the corresponding side plates can generate intervals for smooth demolding of the flanging, so that the demolding process is more convenient;

2. through the matching of the rotating disc and the offset rod, the four jacking blocks can be synchronously driven to be away from and close to each other, so that a space can be generated between each jacking block and the corresponding side plate for the flanging to be separated;

3. in the stamping process, the pressing plate is pressed on the middle plate by using the thrust generated by the pressing of the overpressure spring, so that the possibility that the middle plate is stressed and raised when the side plates are pressed and folded is reduced;

4. the second pressure spring and the supporting strips are arranged to limit the mounting plate, so that the possibility that the four supporting strips are close to each other due to friction when the four supporting strips are close to each other is reduced, and the possibility that the flanging impact mold is damaged when the mounting plate is demoulded is favorably reduced.

Drawings

Fig. 1 is a schematic view of a structure for embodying a mounting plate in the related art;

FIG. 2 is a schematic structural diagram for embodying the present application;

FIG. 3 is an exploded view of the connection among the top supporting block, the accommodating groove, the rotating disc and the steel ball roller according to the embodiment of the present disclosure;

FIG. 4 is a cross-sectional view of a roof strut used in embodiments embodying the present application;

fig. 5 is an enlarged view for embodying a portion a in fig. 5.

FIG. 6 is an exploded view of the connection between the load ring, load bar, upper mold, and platen in an embodiment of the present application;

description of reference numerals: 1. a base plate; 2. an upper die; 3. a drive motor; 4. rotating the disc; 5. a sliding groove; 6. a jacking block; 7. a sliding block; 8. a let position port; 9. an offset slot; 10. an offset lever; 11. briquetting; 12. accommodating grooves; 13. pressing a plate; 14. mounting holes; 15. a carrier bar; 16. a fixing hole; 17. a load ring; 18. a first pressure spring; 19. positioning holes; 20. sealing the cover; 21. positioning a rod; 22. a limiting block; 23. a top stay; 24. a second pressure spring; 25. steel ball rollers; 26. a guide post; 27. a guide sleeve; 28. a middle plate; 29. a side plate; 30. and (5) flanging.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

Referring to fig. 1, the mounting plate includes a middle plate 28, side plates 29 and flanges 30, the mounting plate is disposed in a square shape, four sides of the mounting plate in the circumferential direction respectively correspond to one of the side plates 29, the flanges 30 are located on one side of the side plates 29, the edges of the side plates are far away from the middle plate 28, and the flanges 30 are parallel to the edge of the middle plate, and the four flanges 30 are located on the same side of the middle plate 28.

The embodiment of the application discloses stamping die of convenient drawing of patterns. Referring to fig. 2, the stamping die facilitating demolding comprises an upper die, a bearing part and a driving part which are sequentially arranged from top to bottom, and during stamping, the mounting plate is placed on the bearing part.

Referring to fig. 2 and 3, the driving part includes a bottom plate 1 horizontally disposed, a driving motor 3 is bolted to the lower surface of the bottom plate 1, and the driving motor 3 is a forward and reverse rotation motor. An output shaft of the driving motor 3 penetrates through the bottom plate 1 and is fixedly connected with a horizontally arranged rotating disc 4.

Referring to fig. 3, the upper surface of the bottom plate 1 is bolted with a plurality of steel ball rollers 25, the plurality of steel ball rollers 15 are uniformly arranged around the axis of the driving motor 3 in the circumferential direction, and the rotating disc 4 is pressed on the steel ball rollers 25. The steel ball rollers 25 support the rotating disc 4 and are beneficial to improving the smoothness of the rotating disc 4 during rotation.

Referring to fig. 3, the rotating disc 4 is provided with four arc-shaped offset grooves 9, the offset grooves 9 are circumferentially arranged on the rotating disc 4 around the output shaft of the driving motor 3, and distances from two ends of the offset grooves 9 to the output shaft of the driving motor 3 are unequal.

Referring to fig. 3, the upper surface of the bottom plate 1 is provided with four sliding grooves 5, the four sliding grooves 5 are uniformly arranged around the axis of the driving motor 3 in the circumferential direction, the length direction of the sliding grooves 5 is perpendicular to the output shaft of the driving motor 3, and one sliding groove 5 corresponds to one offset groove 9.

Referring to fig. 3, the bearing part comprises four top supporting blocks 6, the four top supporting blocks 6 are uniformly arranged in the circumferential direction around the axis of the rotating disc 4, and one side, facing away from the axis of the rotating disc 4, of each top supporting block 6 is provided with an accommodating groove 12 for accommodating a flange 30. One jacking block 6 corresponds to one offset groove 9 and one sliding groove 5.

Referring to fig. 3 and 4, the lower surface of the top support block 6 is provided with a abdicating opening 8 for accommodating the rotating disc 4, and the abdicating opening 8 is arranged in a fan shape. The lower surface of the supporting block 6 is welded with an offset rod 10 inserted in the offset groove 9 at a position corresponding to the position-giving opening 8, and the offset rod 10 is in sliding fit with the offset groove 9.

Referring to fig. 3 and 4, the lower surface of the top support block 6 is welded with a sliding block 7 which is connected in the sliding groove 5 in a sliding manner, and the sliding groove 5 and the sliding block 7 are both arranged in a T shape. The sliding fit of the sliding groove 5 and the sliding block 7 plays a role in guiding the movement of the jacking block 6. Meanwhile, the T-shaped arrangement reduces the possibility of inclination and distortion in the sliding process of the top supporting block 6 and improves the stability of the working process of the top supporting block 6.

Referring to fig. 3 and 4, the driving motor 3 is started, and the output shaft of the driving motor 3 drives the rotating disc 4 to rotate. When the rotating disc 4 rotates, the offset rod 10 slides from one end close to the output shaft of the driving motor 3 to one end far away from the output shaft in the offset groove 9, so that the offset rod 10 can drive the supporting blocks 6 to slide along the length direction of the sliding groove 5, and the four supporting blocks 6 are unfolded.

Referring to fig. 2 and 3, the upper die 2 is horizontally arranged and coincides with the geometric center line of the bottom plate 1, four press blocks 11 for turning over the side plate 29 are welded on one side of the upper die 2 facing the bottom plate 1, the four press blocks 11 are uniformly arranged around the geometric center line of the upper die in the circumferential direction, one press block 11 corresponds to one supporting block 6, and the press block 11 is parallel to one side of the supporting block 6 corresponding to the press block, which is opposite to the geometric center line of the upper die 2.

Referring to fig. 2 and 3, before punching, a worker first moves the four top-support blocks 6 away from each other by the driving part and then places the mounting plate on the four top-support blocks 6. Then the upper die 2 moves downwards, the pressing block 11 presses the side plate 29 downwards, the side plate 29 is turned over, and the flanging 30 rotates into the accommodating groove 12.

Referring to fig. 2 and 3, after the punching is completed, the driving motor 3 is started again, and the output shaft of the driving motor 3 drives the rotating disc 4 to rotate reversely. At this time, the offset lever 10 slides from the end farther from the output shaft of the drive motor 3 to the end closer to the offset groove 9. The four top supporting blocks 6 are close to the output shaft of the driving motor 3 at the same time, the turned edge 30 is separated from the containing groove 12 gradually, at the moment, the mounting plate is lifted upwards, so that the demolding can be realized, and the demolding process is more convenient.

Referring to fig. 3, the cross section of the top bracing block 6 is in the shape of a right-angled isosceles triangle, and the right angle of the cross section of the top bracing block 6 points to the axis of the output shaft of the driving motor 3. The cross section is in the shape of a right-angled isosceles triangle, so that the four top supporting blocks 6 can be mutually attached and spliced to be square when being folded, the four top supporting blocks 6 are more tightly folded, and the larger the distance between the top supporting blocks 6 and the side plate 29 is, the more conveniently the mounting plate can be demolded.

Referring to fig. 2, one side of the bottom plate 1 facing the upper die 2 is welded with four vertically arranged guide pillars 26, the lower surface of the upper die 2 is welded with a guide sleeve 27, and the upper die 2 and the guide sleeve 27 are both slidably sleeved on the guide pillars 26. The sliding fit of the guide sleeve 27 and the guide post 26 guides the movement of the upper die 2, which is beneficial to improving the stamping effect of the die on the workpiece.

Referring to fig. 4 and 5, two positioning holes 19 are formed in one side of the accommodating groove 12 facing the axis of the output shaft of the driving motor 3, and a connecting line between the two positioning holes 19 is horizontally arranged. The opening of locating hole 19 is welded with closing cap 20, and the locating lever 21 has slided in the locating hole 19, and locating lever 21 passes closing cap 20 and extends to the locating hole 19 outside.

Referring to fig. 3 and 5, a limiting block 22 is welded at one end of the positioning rod 21 located in the positioning hole 19, and the outer side wall of the limiting block 22 is in sliding fit with the side wall of the positioning hole 19. The top stay bar 23 used for supporting the flanging 30 is welded between the ends, located outside the positioning holes 19, of the two positioning rods 21, the two compression springs 24 are sleeved on the positioning rods 21, one ends of the two compression springs 24 abut against the sealing cover 20, and the other ends of the two compression springs abut against the top stay bar 23.

Referring to fig. 3 and 5, when the four top supporting blocks 6 are close to each other, the friction between the top supporting blocks 6 and the mounting plate may drive the mounting plate to move. The second pressure spring 24 and the supporting strip 23 are arranged to limit the mounting plate, so that the possibility that the mounting plate moves due to friction is reduced when the supporting block 6 moves, and the flanging 30 is not easy to impact the supporting block 6 to cause damage when the mounting plate is demoulded.

Referring to fig. 3 and 6, a horizontal pressing plate 13 is arranged between the upper die 2 and the top support block 6, four mounting holes 14 are formed in the upper surface of the upper die 2, a bearing rod 15 penetrates through the mounting holes 14 in a vertical sliding manner, a fixing hole 16 is formed in the position, opposite to the bearing rod 15, of the upper surface of the pressing plate 13, and the bottom end of the bearing rod 15 penetrates through the upper die 2 and is connected to the bottom of the fixing hole 16 in a threaded manner.

Referring to fig. 6, a bearing ring 17 is sleeved on the shaft body of the bearing rod 15 in the mounting hole 14, the bearing ring 17 is welded and fixed with the bearing rod 15, and the bearing ring 17 is in sliding fit with the mounting hole 14. A first pressure spring 18 is sleeved on the bearing rod 15, one end of the first pressure spring 18 abuts against the lower surface of the upper die 2, and the other end of the first pressure spring 18 abuts against the bottom of the fixing hole 16.

Referring to fig. 3 and 6, when the upper mold 2 moves downward, the pressing plate 13 first comes into contact with the intermediate plate 28. During the process that the upper die 2 continuously moves downwards, the upper die 2 presses the first compression spring 18 into the fixing hole 16, the first compression spring 18 is compressed to generate thrust to press the pressing plate 13 on the top supporting block 6, and therefore the possibility that the middle plate 28 bulges when the pressing block 11 presses the side plate 29 is reduced. During demolding, the upper mold 2 drives the bearing rod 15 to move through the bearing ring 17, and the bearing rod 15 drives the pressing plate 13 to rise upwards.

The implementation principle of the stamping die convenient for demolding is as follows:

starting the driving motor 3, driving the rotating disc 4 to rotate by the output shaft of the driving motor 3, moving the offset rod 10 from one end close to the output shaft of the driving motor 3 to one end far away from the output shaft of the driving motor in the offset groove 9 when the rotating disc 4 rotates, driving the jacking blocks 6 to move in the direction far away from the output shaft of the driving motor 3 by the offset rod 10, unfolding the four jacking blocks 6, and placing the mounting plate on the four jacking blocks 6;

the upper die 2 moves downwards, the pressure plate 13 firstly contacts the middle plate 28, and in the process that the upper die 2 continues to move downwards, the upper die 2 presses the first pressure spring 18 into the fixing hole 16, the first pressure spring 18 is pressed to generate thrust, and the pressure plate 13 is pressed on the middle plate 28. In the process that the pressing block 11 continuously moves downwards, the side plate 29 is turned downwards, the turned edge 30 is turned into the accommodating groove 12 and presses the top stay 23 into the accommodating groove 12, and the top stay 23 and the sealing cover 20 extrude the second compression spring 24;

after the punching is completed, the upper die 2 moves upwards, the upper die 2 drives the bearing rod 15 to move upwards through the bearing ring 17, the bearing rod 15 drives the pressing plate 13 to move upwards, and meanwhile, the upper die 2 drives the pressing block 11 to rise. Then the driving motor 3 is started again, the output shaft of the driving motor 3 drives the rotating disc 4 to rotate reversely, the offset rod 10 moves from one end, far away from the output shaft of the driving motor 3, of the offset groove 9 to one end, close to the end, the offset rod 10 drives the supporting blocks 6 to move along the direction close to the axis of the output shaft of the driving motor 3, the four supporting blocks 6 are close to each other, an interval is generated between the supporting blocks 6 and the side plate 29, the flanging 30 is separated from the accommodating groove 12, the two pressure springs 24 push the supporting blocks 23 to support the flanging 30, the positioning of the flanging 30 is realized, the mounting plate can be vertically taken out at the moment, the demoulding is realized, and the demoulding process is more convenient.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a stamping die of convenient drawing of patterns which characterized in that: the mounting structure comprises an upper die (2) and a bearing part for bearing a mounting plate, wherein the bearing part is positioned below the upper die (2), one side, facing the bearing part, of the upper die (2) is fixedly connected with a pressing block (11) for turning over side plates (29), and one side plate (29) corresponds to one pressing block (11);

the bearing part comprises four supporting blocks (6), the four supporting blocks (6) are arranged around the circumferential direction of the geometric center line of the upper die (2), one side of the geometric center line of the upper die (2) is back to the supporting blocks (6) and is parallel to the pressing blocks (11) which are opposite to the one side of the geometric center line of the upper die (2), the supporting blocks (6) are back to one side of the geometric center line of the upper die (2), accommodating grooves (12) used for accommodating flanges (30) are formed in the accommodating parts, and driving parts used for driving the four supporting blocks (6) to move in the direction of the geometric center line of the upper die (2) respectively along the perpendicular to are further arranged below the bearing part.

2. The easy-to-demold stamping die of claim 1, wherein: the driving part comprises a bottom plate (1) and a rotating disc positioned between the bottom plate (1) and a bearing part, the lower surface of the bottom plate (1) is connected with a driving motor (3), an output shaft of the driving motor (3) penetrates through the bottom plate (1) and is connected to the rotating disc (4), four sliding grooves (5) are formed in the upper surface of the bottom plate (1), the four sliding grooves (5) are uniformly arranged in the circumferential direction of a geometric central line of the bottom plate (1), the length direction of each sliding groove (5) is perpendicular to the output shaft of the driving motor (3), one sliding groove (5) corresponds to one supporting block (6), the lower surface of each supporting block (6) is connected with a sliding block (7) sliding in each sliding groove (5), an arc-shaped offset groove (9) is formed in the rotating disc (4), and four offset grooves (9) are formed in the circumferential direction of the rotating disc (4) around the output shafts of the driving motors (3), the distance between the two ends of the offset groove (9) and the output shaft of the driving motor (3) is unequal, and the lower surface of the jacking block (6) is connected with an offset rod (10) which is inserted in the offset groove (9) and is in sliding fit with the offset groove.

3. The easy-to-demold stamping die of claim 1, wherein: go up to be equipped with between mould (2) and the bearing part clamp plate (13), the upper surface of going up mould (2) is opened has a plurality of mounting hole (14), vertical slip wears to be equipped with carrier bar (15) in mounting hole (14), the relative carrier bar (15) of upper surface of clamp plate (13) position is opened and is had fixed orifices (16), the bottom of carrier bar (15) is passed mould (2) and is connected in fixed orifices (16), fixed cover is equipped with carrier ring (17) on the pole body that carrier bar (15) are located mounting hole (14), carrier ring (17) and mounting hole (14) sliding fit, the cover is equipped with pressure spring (18) on carrier bar (15), the one end of pressure spring (18) is contradicted and is gone up the lower surface of mould (2), the hole bottom of the other end conflict fixed orifices (16).

4. The easy-to-demold stamping die of claim 1, wherein: the cross section of the jacking block (6) is in a right-angle isosceles triangle shape, and the right angle of the cross section of the jacking block (6) points to the geometric center line of the upper die (2).

5. The easy-to-demold stamping die of claim 1, wherein: holding tank (12) are opened towards one side of last mould (2) geometric centre line has two locating holes (19), and the line level between two locating holes (19) sets up, the opening part of locating hole (19) is connected with closing cap (20), locating hole (19) internal slipping has locating lever (21), locating lever (21) pass closing cap (20) and extend outside locating hole (19), locating lever (21) are located one end fixedly connected with stopper (22) in locating hole (19), and fixedly connected with is used for propping top stay (23) of turn-ups (30) between the one end outside two locating levers (21) are located locating hole (19), the cover is equipped with pressure spring two (24) on locating lever (21), the one end conflict closing cap (20) of pressure spring two (24), and the other end is contradicted top stay (23).

6. The easy-to-demold stamping die of claim 2, wherein: the upper surface of the bottom plate (1) is in bolted connection with a plurality of steel ball rollers (25), and the rotating disc (4) is tightly pressed on the steel ball rollers (25).

7. The easy-to-demold stamping die of claim 2, wherein: the bottom plate (1) is towards guide pillar (26) of one side fixedly connected with a plurality of vertical setting of last mould (2), the lower surface fixedly connected with guide pin bushing (27) of going up mould (2), it all slides the cover and establishes on guide pillar (26) to go up mould (2) and guide pin bushing (27).

8. The easy-to-demold stamping die of claim 2, wherein: the sliding groove (5) and the sliding block (7) are arranged in a T shape.

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