CN110154155B

CN110154155B - Punching machine capable of automatically discharging waste

Info

Publication number: CN110154155B
Application number: CN201910459430.2A
Authority: CN
Inventors: 陈昌太; 陈小飞; 纵雷
Original assignee: Anhui Dahua Semiconductor Technology Co ltd
Current assignee: Anhui Zhonghe Semiconductor Technology Co ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2021-07-13
Anticipated expiration: 2039-05-29
Also published as: CN110154155A

Abstract

The invention belongs to the technical field of integrated circuit lead frame processing, and particularly relates to a punching machine capable of automatically discharging waste, wherein a top rod assembly is arranged on the upper side of an operating platform; the ejector rod assembly comprises an ejector rod mounting seat and an ejector rod; the power output mechanism comprises a servo motor, a transmission mechanism, a transmission main shaft and a cam; the servo motor is in transmission connection with the transmission main shaft through a transmission mechanism, and the cam is installed on the transmission main shaft; the upper die assembly comprises a first connecting plate, a first transverse plate, a second transverse plate, a first spring, a first supporting rod, an upper die mounting seat and an upper die. The punching machine provided by the invention can realize punching, waste separation and waste discharge treatment by utilizing the servo motors to provide power, thereby greatly reducing the energy consumption and the production cost.

Description

Punching machine capable of automatically discharging waste

Technical Field

The invention belongs to the technical field of integrated circuit lead frame processing, and particularly relates to a punching machine capable of automatically discharging waste.

Background

In punching or die cutting equipment, an external power is needed to control the pressing of a cutter or a die, so that the material is cut. In the automatic die-cutting machine of integral type, the feeding has been gathered, die-cut, material separation, ejection of compact, and according to production needs, some equipment will die-cut and two unifications of material separation, and some then separate the realization.

The current punching or die cutting equipment is usually realized by one or two sets of motors. For a group of motors, the motors generally control the upper die to move, and the lower die is fixed; or the lower die moves and the upper die is fixed. For both sets of motors, it is common for the upper and lower dies to move simultaneously. If patent CN205086070U, then it is the die-cut frock of a set of motor control removal, cooperation immovable die-cut base realizes die-cut.

And the die-cut machine that patent CN205086070U proposed is after accomplishing die-cut, and material and waste material still need artifically or adopt the arm to carry out the secondary separation in the coplanar, have not only increased the amount of labour, have reduced production efficiency moreover.

Disclosure of Invention

Aiming at the problems, the invention provides a die cutting machine capable of automatically discharging waste, which comprises a main frame, a power output mechanism, an upper die assembly and a lower die assembly,

the main frame comprises an operating platform and a collecting box, wherein a waste discharge port is formed in the operating platform, and a mandril assembly is arranged on the upper side of the operating platform;

the ejector rod assembly comprises an ejector rod mounting seat and an ejector rod;

the power output mechanism comprises a servo motor, a transmission mechanism, a transmission main shaft and a cam; the servo motor is in transmission connection with the transmission main shaft through a transmission mechanism, and the cam is installed on the transmission main shaft;

the upper die assembly comprises a first connecting plate, a first transverse plate, a second transverse plate, a first spring, a first supporting rod, an upper die mounting seat and an upper die;

one ends of two groups of first connecting plates are respectively connected with two ends of the first transverse plate, the other ends of the two groups of first connecting plates are respectively connected with two ends of one side of the second transverse plate, the other side of the second transverse plate is connected with one ends of a plurality of groups of first supporting rods, the other side of the second transverse plate is connected with the main frame through a plurality of groups of first springs, the other ends of a plurality of groups of first supporting rods are respectively connected with one side of an upper die mounting seat, and the upper die is mounted on one side of the upper die mounting seat;

a first cambered surface is arranged at the center of one side of the first transverse plate and is abutted against one side of the cam;

the lower die assembly comprises a first vertical rod, a third transverse plate, a fourth transverse plate, a second spring, a second vertical rod, a lower die and a lower die mounting seat;

the first vertical rod movably penetrates through a third transverse plate, the fourth transverse plate is fixedly sleeved on the outer side of the first vertical rod, and the third transverse plate and the fourth transverse plate are connected through a plurality of groups of second springs; one end of the first vertical rod is fixedly connected with one end of the second vertical rod, the other end of the second vertical rod is fixedly connected with one side of the lower die mounting seat, and the lower die is mounted on the lower die mounting seat;

the other end of the first vertical rod is provided with a second cambered surface, and the second cambered surface is abutted to the other side of the cam.

Further, the ejector rods comprise a first ejector rod and a second ejector rod, and the first ejector rod is longer than the second ejector rod;

the first ejector rod is arranged on one side, away from the waste discharge port, of the ejector rod mounting seat, and the second ejector rod is arranged between the first ejector rod and the center of the ejector rod mounting seat.

Further, the transmission mechanism comprises a driving pulley, a driven pulley and a transmission belt;

the driven belt pulley is installed on the transmission main shaft, the driving belt pulley is installed on an output shaft of the servo motor, and the driving belt pulley and the driven belt pulley are in transmission connection through a transmission belt.

Further, the transmission main shaft is horizontally arranged, and two ends of the transmission main shaft are respectively installed on two sides of the inner wall of the main frame through shaft sleeves.

Furthermore, a plurality of groups of the first supporting rods are symmetrically arranged, and the first supporting rods movably penetrate through the operating platform.

Further, the third transverse plate is horizontally and fixedly installed inside the main frame.

Furthermore, the third transverse plate is arranged above the cam, and a plurality of groups of second springs connected with the third transverse plate are symmetrical to each other.

Furthermore, first montant and second montant all set up vertically.

Furthermore, the first vertical rod movably penetrates through the second transverse plate;

the second vertical rod movably penetrates through the operating platform.

Further, the lower die is arranged above the ejector rod assembly;

the lower die comprises a lower die base and a lower die side wall, and a plurality of groups of second through holes are formed in the lower die base;

the number and the positions of the ejector rods correspond to those of the second through holes respectively.

The punching machine provided by the invention can realize punching, waste separation and waste discharge treatment by utilizing the servo motors to provide power, thereby greatly reducing the energy consumption and the production cost.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 shows a main view of the die cutter of the present invention;

FIG. 2 shows a cross-sectional side view of the die cutter of the present invention;

FIG. 3 shows a top view of the console of the present invention;

FIG. 4 shows a schematic structural view of the ejector pin assembly of the present invention separated from the lower mold;

FIG. 5 shows a schematic structural view of the ram assembly and lower mold of the present invention in combination;

FIG. 6 shows a top view of the ram assembly of the present invention;

fig. 7 shows a top view of the lower mold of the present invention.

In the figure: the

main frame

1, 101 operation panel, 1011 first through hole, 1012 waste discharge port, 2 servo motor, 3 transmission main shaft, 4 cams, 5 first connecting plate, 6 first horizontal plate, 601 first cambered surface, 7 second horizontal plate, 8 first spring, 9 first supporting plate, 10 last mould mount pad, 11 last mould, 12 first montant, 1201 second cambered surface, 13 third horizontal plate, 14 fourth horizontal plate, 15 second spring, 16 second montant, 17 bed die, 1701 bed die base, 1702 bed die lateral wall, 1703 cavity, 1704 second through hole, 18 ejector pin subassembly, 1801 ejector pin mount pad, 1802 first ejector pin, 1803 second ejector pin, 1804 third through hole, 19 bed die mount pad, 20 collection box.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.

The invention discloses a punching machine capable of automatically discharging waste, which comprises a main frame 1, a power output mechanism, an upper die assembly and a lower die assembly, as shown in figures 1 and 2.

The upper end of the main frame 1 is an operation platform 101, and the lower end of the operation platform 101 is provided with a collection box 20.

The power output mechanism comprises a servo motor 2, a transmission mechanism, a transmission main shaft 3 and a cam 4. Specifically, the servo motor 2 is fixedly installed on one side of the main frame 1 through a motor frame, and the servo motor 2 can also be installed on the inner side of the main frame 1. Further, a group of transmission main shafts 3 are horizontally arranged in the main frame 1. Specifically, two ends of the transmission main shaft 3 are movably sleeved on two sides of the inner wall of the main frame 1 through shaft sleeves. Further, the servo motor 2 is in transmission connection with the transmission spindle 3 through a transmission mechanism. Specifically, the transmission mechanism comprises a driving belt pulley arranged on an output shaft of the servo motor 2, a driven belt pulley arranged on the transmission main shaft 3 and a transmission belt; the driving belt pulley and the driven belt pulley are in transmission connection through a transmission belt. Further, the cam 4 is fixedly mounted on the drive spindle 3. Specifically, the servo motor 2 is started to operate, the transmission mechanism transmits the power, the transmission main shaft 3 drives the cam 4 to rotate, and the surface of the cam 4 is smooth.

The upper die assembly comprises a first connecting plate 5, a first transverse plate 6, a second transverse plate 7, a first spring 8, a first supporting rod 9, an upper die mounting seat 10 and an upper die 11. Specifically, first diaphragm 6 level sets up in the inside of body frame 1, and the lower extreme of the first connecting plate 5 of two sets of vertical settings respectively with the both ends fixed connection of first diaphragm 6. Specifically, the first transverse plate 6 is arranged below the cam 4, a first arc surface 601 is arranged at the upper end symmetric center of the first transverse plate 6, the first arc surface 601 is in sliding fit with the cam 4, and the surface of the first arc surface 601 is smooth. Furthermore, the upper ends of the two groups of first connecting plates 5 are respectively fixedly connected with the two sides of the lower end of the second transverse plate 7. Specifically, the second cross plate 7 is horizontally disposed inside the main frame 1. Further, the upper side of the second horizontal plate 7 is connected with the lower side of the operation table 101 through a plurality of sets of symmetrically arranged first springs 8. Specifically, the second cross plate 7 can reciprocate in the vertical direction through the elastic connection of the first spring 8. Furthermore, a plurality of groups of first supporting rods 9 are symmetrically arranged above the second transverse plate 7. Specifically, four groups of first supporting rods 9 are arranged above the second transverse plate 7, the four groups of first supporting rods 9 are vertically and symmetrically arranged, and the lower ends of the four groups of first supporting rods 9 are fixedly connected with the upper side of the second transverse plate 7; the four groups of first supporting rods 9 movably penetrate through the operating platform 101 of the main frame 1. Furthermore, the upper ends of the plurality of groups of first supporting rods 9 are fixedly connected with the lower side of the upper die mounting seat 10, and an upper die 11 is mounted at the symmetrical center of the lower side of the upper die mounting seat 10. Specifically, the upper ends of four sets of, but not limited to, four sets of first support rods 9 are fixedly connected to four corners of the lower side of the upper mold mounting base 10, respectively.

When the cam 4 rotates, the upper die 11 reciprocates along the vertical direction under the action of the interference of the cam 4 and the traction of the first spring 8. The first support rods 9 of the plurality of groups not only play a role in connection, but also play a role in guiding, so that the upper die assembly is ensured to reciprocate only in the vertical direction. The upper die assembly is integrally symmetrical, so that the stability of the structure is ensured.

The lower die assembly comprises a first vertical rod 12, a third transverse plate 13, a fourth transverse plate 14, a second spring 15, a second vertical rod 16, a lower die 17 and a lower die mounting seat 19. Specifically, the first vertical rod 12 is vertically arranged above the cam 4, the lower end of the first vertical rod 12 is provided with a second arc surface 1201, and the outer surface of the second arc surface 1201 is smooth and is in sliding fit with the cam 4. Further, a third cross plate 13 is fixedly installed inside the main frame 1, and the third cross plate 13 is horizontally disposed. Specifically, the first vertical rod 12 movably penetrates through the third horizontal plate 13. Further, a fourth horizontal plate 14 is fixedly sleeved on the first vertical rod 12. Specifically, the first vertical rod 12 penetrates through the symmetric center of the fourth horizontal plate 14, and the fourth horizontal plate 14 is horizontally disposed above the third horizontal plate 13. Further, the third horizontal plate 13 and the fourth horizontal plate 14 are connected by a plurality of sets of second springs 15. Specifically, the plurality of groups of second springs 15 are symmetrically arranged, and the second springs 15 are vertically arranged along the axial direction thereof. Further, the upper end of the first vertical rod 12 is fixedly connected with the lower end of the second vertical rod 16. Specifically, the first vertical rod 12 movably penetrates through the symmetric center of the second horizontal plate 7. Further, the upper end of the second vertical rod 16 is fixedly connected with the lower end of the lower die 17. Specifically, the second vertical rod 16 respectively and movably penetrates through the operating platform 101 and the ejector rod mounting seat 1801, and the lower die 17 is arranged above the ejector rod mounting seat 1801 and below the upper die 11.

The cam 4 rotates, and the lower die 17 reciprocates along the vertical direction under the action of the interference of the cam 4 and the traction of the second spring 15. The first vertical rod 12 movably penetrates through the second transverse plate 7 and the third transverse plate 13, and the second vertical rod 16 movably penetrates through the operating platform 101, so that the lower die assembly is guided, and the lower die assembly is ensured to only reciprocate along the vertical direction. The lower die assembly is integrally symmetrical, so that the stability of the structure is ensured.

The upper end of the main frame 1 is provided with an operating platform 101, and illustratively, as shown in fig. 3, four sets, but not limited to four sets, of first through holes 1011 and waste discharge openings 1012 are arranged on the top surface of the operating platform 101. Specifically, the number and the positions of the first through holes 1011 correspond to the number and the positions of the first support rods 9, and the first support rods 9 penetrate through the first through holes 1011. Further, a jack assembly 18 is provided on the upper side of the operation table 101. Specifically, the plunger assembly 18 is disposed at the center of symmetry of the four sets of first through holes 1011, and the waste discharge port 1012 is disposed at one side of the plunger assembly 18.

The ram assembly 18 is used to eject waste material from the lower mold 17. illustratively, as shown in FIG. 4, the lower mold 17 is disposed above the ram assembly 18, and the lower mold 17 includes a lower mold base 1701 and a lower mold sidewall 1702. Specifically, the lower die base 1701 and the lower die side wall 1702 form a cavity 1703, the shape of the cavity 1703 is the same as that of the waste material which is punched, different products are punched, and dies with different structures are selected. Further, the lower mold base 1701 has two rows, but not limited to two rows, of second through holes 1704 formed therethrough. Specifically, two rows of second through holes 1704 are parallel to each other, and two sets of second through holes 1704 are all arranged on one side of the lower mold base 1701 far away from the waste discharge port 1012, and the number of the second through holes 1704 in each row is not less than two. Further, a lower die mounting seat 19 is provided at a lower end of the lower die 17. Specifically, the lower end of the lower die mounting seat 19 is fixedly connected with the upper end of the second vertical rod 16, and the lower die mounting seat 19 is fixedly connected with the lower die 17 through a bolt, so that the lower die 17 can be conveniently disassembled, assembled and replaced. Further, a ram assembly 18 is disposed below the lower die mount 19, the ram assembly 18 including, but not limited to, two rows of rams and ram mounts 1801. Specifically, the number of rows of the lift pins and the number of groups corresponding to each row are respectively the same as the number of rows of the second through holes 1704 and the number corresponding to each row, each group of the lift pins respectively corresponds to the position of one second through hole 1704, and the upper ends of the lift pins are smooth curved surfaces. The present invention is exemplified by two rows of lift pins, which comprise a row of first lift pins 1802 and a row of second lift pins 1803. Specifically, two rows of ejector rods are perpendicular to the upper surface of the ejector rod mounting seat 1801 and fixedly connected with the upper surface of the ejector rod mounting seat 1801, the two rows of ejector rods are parallel to each other, the first ejector rod 1802 is arranged on one side, far away from the waste discharge port 1012, of the ejector rod mounting seat 1801, the second ejector rod 1803 is arranged between the first ejector rod 1802 and the center of the ejector rod mounting seat 1801, and the length of the first ejector rod 1802 is larger than that of the second ejector rod 1803. The ejector rod mount 1801 is mounted on the operating table 101 by bolts, and the ejector rod assembly 18 can be replaced simultaneously when the mold is replaced.

Illustratively, as shown in fig. 5, when the lower mold 18 moves downward after punching, the first and second lift pins 1802 and 1803 respectively pass through the second through holes 1704, so as to discharge the waste material in the cavity 1703. Specifically, the lower mold 18 moves downward, the first ejector pin 1802 first passes through the second through hole 1704, so that one end of the waste material in the cavity 1703, which is far away from the waste discharge port 1012, tilts, and then the second ejector pin 1803 passes through the second through hole 1704, so as to completely eject the tilted waste material out of the cavity 1703, and the waste material ejected out of the cavity 1703 falls into the waste discharge port 1012 on one side of the lower mold 17 under the action of the tilting angle and gravity.

Further, the collection box 20 is disposed below the operation table 101, and the feed port of the collection box 20 is aligned up and down with the waste discharge port 1012. Specifically, the waste material drops into the collection box 20 through the waste outlet 1012.

The second vertical rod 16 movably penetrates through the top rod installation seat 1801, for example, as shown in fig. 6, a row of first top rods 1802 and a row of second top rods 1803 are respectively arranged on the upper side of the top rod installation seat 1801, and the number of the top rods in each row is two, but not limited to two; a third through hole 1804 is arranged on the ejector rod mounting seat 1801. Specifically, the second vertical rod 16 extends through the third through hole 1804. The position of the third through hole 1804 is designed according to the position of the second vertical rod 16, and if the area of the ejector rod mounting seat 1801 is small, the second vertical rod 16 does not contact with the ejector rod mounting seat 1801, and the third through hole 1804 can be eliminated.

The number and the positions of the second through holes 1704 of the lower die 17 are respectively the same as and correspond to those of the ejector pins. Illustratively, as shown in fig. 7, the lower mold 17 includes a lower mold base 1701 and a lower mold sidewall 1702, and two rows, but not limited to two rows, of second through holes 1704 are provided on the lower mold base 1701, and the number of the second through holes 1704 in each row is two, but not limited to two.

The working principle of the die cutting machine provided by the invention is as follows: before punching, the upper die 11 and the lower die 17 are in a separated state, and at the moment, two side curved surfaces with small curvature on the cam 4 are respectively abutted against the first cambered surface 601 and the second cambered surface 1201. The material conveying mechanism moves the plate to the position of the punching machine, and the punching position of the plate is positioned between the upper die and the lower die. The servo motor 2 is started, the cam 4 rotates, the upper die 11 moves downwards at the moment, the lower die 17 moves upwards, when the two side curved surfaces with large curvature on the cam 4 are respectively abutted to the first cambered surface 601 and the second cambered surface 1201, the upper die 11 and the lower die 17 are closed, and the punching processing of the plate is completed. The cam 4 continues to rotate, the upper die 11 is separated from the lower die 17, the plate main body is pulled by the material conveying mechanism, the position is kept unchanged, but the punched waste is located in the cavity 1703 of the lower die 17 and moves downwards along with the lower die 17, and waste separation treatment is achieved. The lower mold 17 continues to move downward and the waste side of the cavity 1703 is lifted by the first ram 1802 as the first ram 1802 passes through the second through hole 1704 and the angled waste material is fully ejected from the cavity 1703 as the second ram 1803 passes through the second through hole 1704 and slides into the waste discharge port 1012 on the side of the ram assembly 18 under the influence of the angle of inclination and gravity and falls into the collection box 20. The material conveying device controls the movement of the plate to carry out the next punching.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A punching machine capable of automatically discharging waste comprises a main frame (1), a power output mechanism, an upper die assembly and a lower die assembly, and is characterized in that,

the main frame (1) comprises an operating platform (101) and a collecting box (20), wherein a waste discharge port (1012) is formed in the operating platform (101), and a mandril assembly (18) is arranged on the upper side of the operating platform (101);

the ejector rod assembly (18) comprises an ejector rod mounting seat (1801) and an ejector rod;

the power output mechanism comprises a servo motor (2), a transmission mechanism, a transmission main shaft (3) and a cam (4); the servo motor (2) is in transmission connection with the transmission main shaft (3) through a transmission mechanism, and the cam (4) is installed on the transmission main shaft (3);

the upper die assembly comprises a first connecting plate (5), a first transverse plate (6), a second transverse plate (7), a first spring (8), a first supporting rod (9), an upper die mounting seat (10) and an upper die (11);

one end of each of the two groups of first connecting plates (5) is connected with two ends of the first transverse plate (6), the other end of each of the two groups of first connecting plates (5) is connected with two ends of one side of the second transverse plate (7), the other side of the second transverse plate (7) is connected with one end of each of the plurality of groups of first supporting rods (9), the other side of the second transverse plate (7) is connected with the main frame (1) through a plurality of groups of first springs (8), the other ends of the plurality of groups of first supporting rods (9) are connected with one side of the upper die mounting seat (10), and the upper die (11) is mounted on one side of the upper die mounting seat (10);

a first cambered surface (601) is arranged at the center of one side of the first transverse plate (6), and the first cambered surface (601) is abutted against one side of the cam (4);

the lower die assembly comprises a first vertical rod (12), a third transverse plate (13), a fourth transverse plate (14), a second spring (15), a second vertical rod (16), a lower die (17) and a lower die mounting seat (19);

the first vertical rod (12) movably penetrates through a third transverse plate (13), the fourth transverse plate (14) is fixedly sleeved on the outer side of the first vertical rod (12), and the third transverse plate (13) is connected with the fourth transverse plate (14) through a plurality of groups of second springs (15); one end of the first vertical rod (12) is fixedly connected with one end of the second vertical rod (16), the other end of the second vertical rod (16) is fixedly connected with one side of a lower die mounting seat (19), and the lower die (17) is mounted on the lower die mounting seat (19); the lower die (17) is provided with a cavity (1703);

the ejector rods comprise a first ejector rod (1802) and a second ejector rod (1803), and the first ejector rod (1802) is longer than the second ejector rod (1803);

the first ejector rod (1802) is arranged on one side, far away from the waste discharge port (1012), of the ejector rod mounting seat (1801), and the second ejector rod (1803) is arranged between the first ejector rod (1802) and the center of the ejector rod mounting seat (1801);

the lower die (17) comprises a lower die base (1701) and a lower die side wall (1702), wherein a plurality of groups of second through holes (1704) are formed in the lower die base (1701);

the other end of the first vertical rod (12) is provided with a second arc surface (1201), and the second arc surface (1201) is abutted against the other side of the cam (4).

2. The die cutter of claim 1, wherein the transmission mechanism includes a drive pulley, a driven pulley, and a drive belt;

the driven belt pulley is arranged on the transmission main shaft (3), the driving belt pulley is arranged on an output shaft of the servo motor (2), and the driving belt pulley and the driven belt pulley are in transmission connection through a transmission belt.

3. The blanking machine according to claim 1 or 2, characterized in that the transmission main shaft (3) is horizontally arranged, and two ends of the transmission main shaft (3) are respectively installed on two sides of the inner wall of the main frame (1) through shaft sleeves.

4. The blanking machine according to claim 1, characterized in that several groups of said first supporting rods (9) are arranged symmetrically to each other, said first supporting rods (9) being movably passed through said operating table (101).

5. The blanking machine according to claim 1, characterized in that the third cross plate (13) is horizontally fixed mounted inside the main frame (1).

6. The blanking machine according to claim 1 or 5, characterized in that the third cross plate (13) is arranged above the cam (4), and that the sets of second springs (15) connected to the third cross plate (13) are symmetrical to each other.

7. The blanking press according to claim 1, wherein the first vertical bar (12) and the second vertical bar (16) are arranged vertically.

8. The blanking machine according to claim 1 or 7, characterized in that the first vertical bar (12) is movable through the second transverse bar (7);

the second vertical rod (16) movably penetrates through the operating platform (101).

9. The blanking press according to claim 1, wherein the lower die (17) is arranged above the ram assembly (18);

the number and the positions of the ejector rods correspond to those of the second through holes (1704) respectively.