CN111761054A

CN111761054A - Quick punching press

Info

Publication number: CN111761054A
Application number: CN202010739486.6A
Authority: CN
Inventors: 应开法
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2020-10-13

Abstract

The invention relates to the technical field of presses. The rapid punching machine comprises a frame, a raw material storage mixing cylinder, a filler trolley and a punch forming device, wherein the raw material storage mixing cylinder, the filler trolley and the punch forming device are sequentially arranged on a workbench of the frame; a forming die is arranged below the punch forming device; a discharging plate which inclines downwards is arranged on a workbench on one side of the forming die, which is far away from the raw material storage mixing cylinder, and the discharging plate consists of a plate body and a rubber cushion layer arranged on the upper surface of the plate body; a plurality of convex edges extending along the width direction of the stripper are arranged on the rubber cushion layer side by side, and the cross sections of the convex edges are semicircular; a plurality of slag leaking holes penetrating through the rubber cushion layer and the plate body are uniformly formed in the discharging plate. The invention can rapidly remove the powder impurities adhered on the surface of the formed workpiece, has simple structure and low manufacturing cost, is convenient for popularization and simplifies the subsequent procedures.

Description

Quick punching press

Technical Field

The invention relates to the technical field of presses, in particular to a rapid stamping press.

Background

The press machine is a comprehensive device which generates motive power through a hydraulic cylinder, a motor, an air cylinder and the like, applies acting force on a workpiece through a series of complex mechanical transmission and is used for shearing, compacting, punching and the like of the workpiece. Powder metallurgy is a novel production process which mixes metal powder with metal powder or mixes metal powder with nonmetal powder, then directly presses the metal powder into a workpiece with a specific shape by using a punch press, or presses the workpiece into a specific shape and then sinters the workpiece, has the advantages of small material waste, high production flexibility and the like, and is widely applied to various industries at present. When the powder injection molding machine is used, the feeding trolley transports powder to a mold, the powder is filled in a cavity of the mold, after the feeding trolley retreats, the punch is pressed down to be matched with the mold, and a workpiece is pressed and molded. However, the forming punch dedicated for metal metallurgy still has certain inevitable defects in the using process, and needs to be improved urgently. For example:

1. when the feeding trolley is used for filling the mold, the feeding trolley is tightly attached to the workbench to move, when the feeding trolley moves to the position above the mold, raw materials in the feeding trolley automatically flow into the mold from a discharge hole in the bottom of the trolley to finish filling, and the feeding trolley moves away. However, this method is limited by the influence of the flow characteristics of the powder material, and often cannot fill the mold quickly, especially for the mold with a large cavity depth and a large size, which limits the filling speed of the feeding cart and also affects the overall processing efficiency of the workpiece. And if the powder raw material cannot be filled or reaches the filling compactness standard, the powder raw material can also cause the appearance of defective products and scrapped products.

2. In the process of conveying a workpiece along a workbench after forming, part of powder raw materials are inevitably left on the surface of the workpiece, and the part of impurities affect subsequent washing, sintering and other processes and need to be removed. For the enterprises, the economy is not good.

3. As is known, powder raw materials for powder metallurgy molding are often composed of a plurality of powder materials, and for mass production, the raw materials can be prefabricated in advance and then produced. For small-batch and various workpieces, various batching modes are needed and are frequently switched, and if the mode of prefabricating raw materials in advance is adopted to cooperate with production, the production characteristics of short, flat, quick and strong flexibility of powder metallurgy are obviously not brought into play.

Disclosure of Invention

The invention aims to provide a rapid stamping press capable of effectively removing redundant impurities on a workpiece.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a rapid punching press comprises a frame, a raw material storage mixing cylinder, a filling trolley and a punch forming device, wherein the raw material storage mixing cylinder, the filling trolley and the punch forming device are sequentially arranged on a workbench of the frame; a forming die is arranged below the punch forming device;

a discharging plate which inclines downwards is arranged on a workbench on one side of the forming die, which is far away from the raw material storage mixing cylinder, and the discharging plate consists of a plate body and a rubber cushion layer arranged on the upper surface of the plate body; a plurality of convex edges extending along the width direction of the stripper are arranged on the rubber cushion layer side by side, and the cross sections of the convex edges are semicircular; a plurality of slag leaking holes penetrating through the rubber cushion layer and the plate body are uniformly formed in the discharging plate.

Preferably, both sides of the stripper plate are provided with edge plates along the length direction of the stripper plate.

Preferably, the upper end of the stripper plate is connected with the workbench through a flexible connecting section, and the lower end of the stripper plate is also connected with a lifting plate of the punch forming device through a swing driving assembly; the swing driving device comprises a vertical rod fixedly arranged on the workbench, and a guide hole is formed in the top end of the vertical rod; the side plate at the overhanging end of the stripper plate is provided with a rope hole, one end of the pull rope is connected with the rope hole, and the other end of the pull rope penetrates through the guide hole and then is connected with the lifting plate of the punch forming device.

Preferably, a transfer cart is further arranged below the overhanging end of the discharging plate.

Preferably, the lower surface of the stripper plate is also provided with a slag collecting bin, and the bottom of the slag collecting bin is provided with a discharge door.

Preferably, the filling trolley comprises a hollow trolley body, and a storage bin for temporarily storing the powder raw materials is formed inside the trolley body; the bottom of the vehicle body is provided with a blanking hole penetrating through the bottom surface of the vehicle body; the upper part of one side of the vehicle body is communicated with the bottom of the raw material storage mixing cylinder through a connecting pipe, the top of the vehicle body is provided with a mounting box, and a filling promoting mechanism is arranged in the mounting box;

the filler promoting mechanism comprises a vertical vibrating rod, a vibration driving assembly and a lifting driving assembly; the upper end of the vibrating rod is arranged in the mounting box, and the lower end of the vibrating rod penetrates through the abdicating hole at the bottom of the mounting box and extends into the vehicle body; the position of vibrating arm is relative with the blanking hole, and the vibrating arm can form the vibration under the drive of vibration drive assembly, and can pass the blanking hole under the drive of lift drive assembly and stretch into or withdraw from forming die's die cavity.

Preferably, the vibration driving assembly comprises a contact rod arranged at the lower part of the mounting box and extending along the transverse direction, the middle section of the contact rod is contacted with the vibration rod, one end of the contact rod is provided with a vibration motor, and the other end of the contact rod is provided with a hinge joint; the contact bar is hinged with the hinged seat through the hinged joint, and a torsional spring used for pressing the contact bar against the vibrating bar is arranged between the hinged seat and the hinged joint.

Preferably, a vibration intensity adjusting pad is arranged on one surface, which is in contact with the vibrating rod, of the middle section of the contact rod, the vibration intensity adjusting pad is a strip-shaped plastic sheet extending along the length direction of the contact rod, and the vibration intensity adjusting pad gradually becomes thicker towards the direction close to the vibrating motor; the vibration intensity adjusting device further comprises a transverse adjusting assembly which is used for driving the contact rod to move along the transverse direction so that positions with different thicknesses of the vibration intensity adjusting pad are in contact with the vibration rod.

Preferably, the lifting driving assembly comprises a linear motor fixedly arranged on the top surface of the mounting box, the output end of the linear motor faces downwards, the end part of the linear motor is provided with an upper connecting disc, a lower connecting disc is arranged below the upper connecting disc, and the vibrating rod is fixedly arranged on the lower connecting disc; the upper connecting disc and the lower connecting disc are connected with each other through a plurality of short rubber rods.

Preferably, the vibrating rod is a hollow rod, and the side wall of the vibrating rod is provided with a plurality of air passing micropores; the inside filter core that is used for the powder raw materials that is provided with of vibrating arm, the upper end of vibrating arm is through gas transmission hose and the fixed exhaust pump intercommunication that sets up at the mounting box top.

The beneficial effects of the invention are concentrated and expressed as follows: the powder impurity that can be quick adhesion on getting rid of shaping workpiece surface, and simple structure, low in manufacturing cost, facilitate promotion has simplified the subsequent handling. Particularly, the work piece after the shaping reachs the stripper under the propelling movement, receives the influence of the gravity of work piece self, and the work piece is along the continuous decline in domatic of stripper. Because the upper surface of stripper is a layer rubber cushion, it can be effectual protects the work piece, and rubber cushion upper surface is provided with a plurality of beads simultaneously, and the work piece is at the rolling in-process, and it is continuous irregularly jumping. During the jumping process, the powder impurities on the powder are shaken off. The invention adopts simple design, solves the long-standing problems in the industry, and has lower energy consumption compared with the modes of high-pressure air flushing, water washing and the like. The powder impurity that trembles to remove accessible leaks the sediment hole and is discharged, has solved the accumulational problem of impurity.

Drawings

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

FIG. 2 is a schematic structural view of a packing truck;

FIG. 3 is a schematic view of the internal structure of the packing trolley;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a view from direction B-B of the structure shown in FIG. 1;

FIG. 6 is a schematic view of a packing carriage in use;

FIG. 7 is a schematic view of a packing carriage in a second use state;

FIG. 8 is a schematic view of a third usage state of the packing truck;

FIG. 9 is a schematic view of the contact bar mounted in a top view;

FIG. 10 is a schematic view of the structure of the contact sleeve;

FIG. 11 is a schematic view of the installation of the stripper plate;

FIG. 12 is an enlarged view of the portion C of FIG. 11;

figure 13 is a schematic view of the internal structure of the proportioning bin.

Detailed Description

As shown in fig. 1 to 13, a press for powder metallurgy directly presses a powder raw material. The basic mechanism of the invention is the same as the traditional powder metallurgy punch press, and comprises a frame 1, and a raw material storage mixing cylinder 3, a filler trolley 4 and a punch forming device 5 which are sequentially arranged on a worktable 2 of the frame 1, wherein a forming die 6 is arranged below the punch forming device 5. The frame 1 is used as an installation foundation, and the workbench 2 on the frame is used for installing various devices of the invention; the raw materials stores mixing drum 3 and is used for storing powdered raw materials to and be used for stirring the powder raw materials and mixing, be provided with rabbling mechanism in it, in order to ensure the raw materials in the raw materials stores mixing drum 3 and mix the degree of consistency. The filling trolley 4 is used for walking on the workbench 2 and can enter or exit from the lower part of the punch forming device 5 so as to realize the filling of the raw materials in the forming die 6. The specific movement driving modes of the packing trolley 4 are more, for example: as shown in fig. 1 and 5, the driving can be performed by a lead screw nut pair, or by a sprocket, which is not described again since it does not relate to the improvement of the present invention.

Compared with the traditional powder metallurgy punch press, the invention mainly has the following three differences: firstly, the filling efficiency of the filling trolley 4 is improved; secondly, quickly removing powder impurities on the formed workpiece; thirdly, high-precision and high-efficiency batching is carried out on site.

From a first aspect, as shown in fig. 1 to 3, the filling cart 4 of the present invention includes a hollow cart body 7, the interior of the cart body 7 forms a storage bin for temporarily storing the powder raw material, the upper portion of one side of the cart body 7 is communicated with the bottom of the raw material storage and mixing cylinder 3 through a connecting pipe 9, and the connecting pipe 9 is used for introducing the raw material into the filling cart 4 from the raw material storage and mixing cylinder 3. The bottom of the vehicle body 7 is provided with a blanking hole 8 penetrating through the bottom surface of the vehicle body 7, raw materials enter a cavity of the forming mold 6 through the blanking hole 8, and the vehicle body 7 should be tightly attached to the workbench 2 as much as possible to form micro-clearance fit, so that the raw materials in the filling trolley 4 are prevented from leaking out when the filling trolley does not reach the forming mold 6. The top of automobile body 7 is provided with mounting box 10, be provided with in the mounting box 10 and pack and promote the mechanism, pack and promote the mechanism and be used for promoting that the raw materials is quick fills in forming die 6's die cavity.

As shown in connection with fig. 3 and 4, the stuffing promotion mechanism includes a vertical vibration rod 11, a vibration driving assembly, and a lifting driving assembly. The upper end of vibrating arm 11 sets up in mounting box 10, and the lower extreme passes the hole of stepping down of mounting box 10 bottom and stretches into in automobile body 7. The position of the vibrating rod 11 is opposite to the blanking hole 8, the vibrating rod 11 can vibrate under the driving of the vibration driving assembly, and can penetrate through the blanking hole 8 to stretch into or withdraw from the cavity of the forming die 6 under the driving of the lifting driving assembly.

In the using process of the filling trolley 4, as shown in a combined figure 6-8, raw materials in a trolley body 7 are supplemented by a raw material storage mixing cylinder 3 through a connecting pipe 9, and after the filling trolley 4 moves in place, namely moves to a blanking hole 8 to align with a forming mould 6, a lifting driving component drives a vibrating rod 11 to descend and extend into a cavity of the forming mould 6; meanwhile, powder raw materials in the packing trolley 4 enter the cavity of the forming die 6 through the blanking hole 8, in the process of supplementing the powder raw materials, the vibration driving component drives the vibrating rod 11 to vibrate continuously, the vibration of the vibrating rod 11 not only accelerates the descending filling speed of the raw materials, but also can effectively promote the uniform distribution of the raw materials in the cavity.

The vibration driving assembly of the present invention has more specific structures, for example: it may be the vibration motor 13 directly mounted on the middle section of the vibration rod 11, or the vibration motor 13 mounted on the end of the vibration rod 11. However, since the vibration rod 11 has a small size, it is possible to prevent the vibration rod 11 from affecting the vibration motor 13 during the lifting and lowering process, in consideration of the convenience of installation. As shown in fig. 4 and 9, the vibration driving assembly may further include a contact rod 12 disposed at a lower portion of the mounting box 10 and extending in a transverse direction, a middle section of the contact rod 12 is in contact with the vibration rod 11, a vibration motor 13 is disposed at one end of the contact rod 12, the vibration motor 13 is operated to drive the contact rod 12 to vibrate, and the contact rod 12 transmits the vibration from a contact portion with the vibration rod 11 to the vibration rod 11. The other end of the contact rod 12 is provided with a hinge 14, the contact rod 12 is hinged with a hinge seat 15 through the hinge 14, and a torsion spring for pressing the contact rod 12 against the vibrating rod 11 is arranged between the hinge seat 15 and the hinge 14, the specific installation structure of the torsion spring is simple, not shown in the figure, and the main function of the torsion spring is to ensure the stable contact between the contact rod 12 and the vibrating rod 11.

Of course, for different powdered raw materials, some are suitable for larger vibrations and some for smaller vibrations, due to the differences in contact characteristics between the particles. To this end, in the present invention, as shown in fig. 9, a vibration intensity adjusting pad 16 is disposed on a surface of the contact rod 12 contacting the vibration rod 11 at a middle portion thereof, the vibration intensity adjusting pad 16 is a strip-shaped plastic sheet extending in a longitudinal direction of the contact rod 12, and the vibration intensity adjusting pad 16 is gradually thickened toward the vibration motor 13. Because the vibration intensity adjusting pad 16 has different thicknesses, the contact position of the vibration intensity adjusting pad 16 and the vibrating rod 11 is changed, and because the dynamic intensity adjusting pad 16 is a plastic sheet with certain flexibility, the vibration intensity can be adjusted by utilizing the different thickness positions of the dynamic intensity adjusting pad 16 to have different vibration buffering performances. Of course, it is necessary to further include a lateral adjustment assembly for driving the contact rod 12 to move in the lateral direction so that the vibration intensity adjusting pad 16 is brought into contact with the vibration rod 11 at positions of different thicknesses.

The transverse adjusting assembly can adopt an electric push rod, an air cylinder and the like, and can also adopt a simpler mode that, as shown in a combined mode of fig. 5 and 9, the transverse adjusting assembly comprises a guide rail 17 and a sliding block 18 which are matched on the bottom surface of the mounting box 10, the guide rail 17 extends along the transverse direction, the sliding block 18 is mounted on the guide rail 17, and the hinge seat 15 is mounted on the sliding block 18. The side wall of the mounting box 10 is further provided with an adjusting screw rod 19, the adjusting screw rod 19 is matched with a threaded sleeve on the side wall of the mounting box 10, an inner hexagonal adjusting head is arranged at the outer end of the adjusting screw rod 19, and the inner end of the adjusting screw rod is connected with the sliding block 18 through a rotary joint 20. The length of the adjusting screw 19 in the mounting box 10 can be changed by rotating the adjusting screw 19, and the sliding block 18 is driven to move along the guide rail 17.

The specific structure of the lifting driving assembly is also more, and the lifting driving assembly may include a linear motor 21 or an electric push rod, an air cylinder and the like fixedly arranged on the top surface of the mounting box 10, and directly drives the vibrating rod 11 to move up and down. In order to prevent the vibration of the vibration rod 11 from being excessively transmitted to the linear motor 21, as shown in fig. 5, the output end of the linear motor 21 of the present invention is directed downward and has an upper connection plate 22 at an end thereof, a lower connection plate 23 is disposed below the upper connection plate 22, and the vibration rod 11 is fixedly disposed on the lower connection plate 23. The upper connecting disc 22 and the lower connecting disc 23 are connected with each other through a plurality of short rubber rods 24. The connection mode of the upper connecting disc 22 and the lower connecting disc 23 by the plurality of short rubber rods 24 has certain flexibility and sufficient support performance, so that the normal up-and-down driving of the vibrating rod 11 can be ensured, and the influence of excessive vibration of the vibrating rod 11 transmitted to the linear motor 21 on the stability of the linear motor 21 can be prevented.

On this basis, since the vibration rod 11 is generally circular, in order to ensure a sufficient contact surface between the vibration rod 11 and the contact rod 12, an effective transmission of vibration is achieved. The middle section of the vibrating rod 11 is also sleeved with a contact sleeve 25 shown in fig. 10, and the contact sleeve 25 is fixedly connected with the vibrating rod 11. The contact sleeve 25 is flat on the side facing the contact rod 12 and contacts the contact rod 12 through the flat surface.

Further, if the gas in the cavity can be rapidly discharged in the process of filling the powder material into the cavity, the filling efficiency can be improved. Therefore, the vibrating rod 11 can be a hollow rod, and the side wall of the vibrating rod 11 is provided with a plurality of air passing micropores. The vibrating rod 11 is internally provided with a filter core for powder raw materials, and the upper end of the vibrating rod 11 is communicated with an exhaust pump 28 fixedly arranged at the top of the mounting box 10 through an air hose 27. The gas in the cavity is pumped and exhausted by the exhaust pump 28, and the efficient filling can be realized by matching with the vibration of the vibrating rod 11.

In addition, the invention can also be designed in such a way that the inner surface of the bottom of the vehicle body 7 is inclined downwards to the blanking hole 8, and the blanking hole 8 is funnel-shaped, so as to improve the smoothness of the flowing of the raw materials. An inclined observation window 29 is arranged on the upper portion of one side, away from the connecting pipe 9, of the vehicle body 7, and a transparent window body is arranged in the observation window 29, so that working conditions in the packing trolley 4 can be observed conveniently by workers, and the overhauling speed is increased. The side wall of the vehicle body 7 close to one side of the mold 6 is provided with a push rod 30 and a push plate 31 for pushing a workpiece, and the push rod 30 and the push plate 31 are mainly used for being matched with an ejector rod assembly in the forming mold 6 to push the processed workpiece. That is, after the workpiece is pressed and formed, the existing ejector rod is ejected, at this time, the filling trolley 4 moves towards the forming die 6, and the push rod 30 and the push plate 31 can push the workpiece to the subsequent process equipment.

In a second aspect, the present invention is designed with a simple and efficient stripper plate 32, which can rapidly remove the powder impurities on the surface of the workpiece. Specifically, as shown in fig. 11, a stripper plate 32 inclined obliquely downward is provided on the table 2 on the side of the forming die 6 away from the raw material storage-mixing cylinder 3, and the stripper plate 32 is composed of a plate body 33 and a rubber pad 34 provided on the upper surface of the plate body 33. The rubber cushion layer 34 is provided with a plurality of protruding ribs 35 extending along the width direction of the stripper plate 32 side by side, and the cross sections of the protruding ribs 35 are semicircular. The discharging plate 32 is uniformly provided with a plurality of slag leaking holes 36 which penetrate through the rubber cushion layer 34 and the plate body 33.

The formed workpiece reaches the stripper plate 32 under pushing, and is influenced by the gravity of the workpiece, so that the workpiece continuously descends along the slope of the stripper plate 32. Because the upper surface of the stripper plate 32 is a rubber cushion layer 34, the workpiece can be effectively protected, and meanwhile, the upper surface of the rubber cushion layer 34 is provided with a plurality of convex ribs 35, the workpiece can continuously and irregularly jump in the rolling process. During the jumping process, the powder impurities on the powder are shaken off. The invention adopts simple design, solves the long-standing problems in the industry, and has lower energy consumption compared with the modes of high-pressure air flushing, water washing and the like. The shaken off powder impurities can be discharged through the slag leakage hole 36, and the problem of impurity accumulation is solved.

In order to prevent the work pieces from falling out of the side edges of the stripper plate 32, both sides of the stripper plate 32 are provided with edge plates 37 along the length of the stripper plate 32. The stripper plate 32 may be directly connected to the downstream equipment or may be connected to a transfer cart 42, as shown in fig. 1, i.e., the transfer cart 42 is disposed below the overhanging end of the stripper plate 32.

On the basis, in order to improve the effect of the stripper plate 32 on removing impurities from the workpiece, the stripper plate 32 may be formed in a swinging manner, that is, the upper end of the stripper plate 32 is connected with the workbench 2 through the flexible connecting section 38, so that a certain free swinging can be formed.

As to how to drive the stripper plate to swing freely, the invention adopts the mode that the lower end of the stripper plate 32 is also connected with the lifting plate of the punch forming device 5 through a swing driving component. As shown in fig. 1, the swing driving device includes a vertical rod 39 fixedly disposed on the working platform 2, and a guide hole 40 is disposed at a top end of the vertical rod 39. The edge plate 37 at the overhanging end of the stripper plate 32 is provided with a rope hole 41, one end of the pull rope is connected with the rope hole 41, and the other end of the pull rope passes through the guide hole 40 and then is connected with the lifting plate of the punch forming device 5. In the process that stamping forming device 5's lifter plate reciprocated, it can drive stripper plate 32 through the stay cord and form the luffing motion round flexible connection section 38, can prevent on the one hand that the work piece from piling up on stripper plate 32, and on the other hand has also improved the effect of getting rid of to powder impurity on the work piece. After the powder impurities on the workpiece are discharged from the slag leaking hole 36, the powder impurities can be directly collected through a collecting plate, or as shown in fig. 11, a slag collecting bin 43 is further arranged on the lower surface of the discharging plate 32, and a discharging door 44 is arranged at the bottom of the slag collecting bin 43.

Viewed from a third aspect, the invention can realize flexible batching and has high batching precision. Specifically, as shown in fig. 1 and 13, a batching device is further arranged on one side of the rack 1, the batching device comprises a batching bin 45, the batching bin 45 is located above one side of the raw material storage mixing cylinder 3, a plurality of vertical partition plates 46 are uniformly arranged inside the batching bin 45, the partition plates 46 divide the inside of the batching bin 45 into a plurality of material chambers, as shown in fig. 2, three partition plates 46 are arranged in the batching bin 45, the inside of the batching bin 45 is divided into 4 material chambers, and each material chamber can store different raw materials.

All be provided with a feed gate 47 at the top of feed chamber, in the raw materials passes through feed gate 47 and adds proportioning bins 45, because proportioning bins 45's position is higher, for the ease of operation, can set up the lifting machine to the side of proportioning bins 45, perhaps proportioning bins 45 adopts the form of going up and down, as shown in fig. 1, the dosing unit still includes scissors fork lift platform 51, raw materials storage mixing tube 3 installs on scissors fork lift platform 51. On the basis, in order to avoid interference among the components during lifting, the electric rotating disc 52 is arranged on the top surface of the scissor-type lifting platform 51, and the raw material storage mixing barrel 3 is arranged on the electric rotating disc 52. The orientation of the dosage chamber 45 is adjusted by the motor-driven rotatable disk 52 so as to prevent the protruding parts thereon from interfering with the ingredient storage and mixing cartridge 3.

As shown in fig. 13, a batching pipe 48 is provided at a lower portion of one surface of each material chamber near the raw material storage mixing cylinder 3, and a screw conveyor 49 is further provided in the material chamber, and the screw conveyor 49 extends into the batching pipe 48. An inclined material collecting groove 50 is further arranged above the feeding hole of the raw material storage mixing cylinder 3, and the batching pipe 48 of each material chamber is positioned above the material collecting groove 50.

In the using process of the invention, different raw materials can be loaded into each material chamber of the proportioning bin 45 through the feeding door 47, the raw materials in each material chamber can be quantitatively conveyed into the material collecting tank 50 from the proportioning pipe 48 through the screw conveyor 49, the material collecting tank 50 collects and gathers the raw materials, then the raw materials are all guided into the raw material storage mixing cylinder 3, the raw materials are stirred and mixed by the raw material storage mixing cylinder 3, and finally the raw materials are discharged into the filling trolley 4 to supplement the raw materials. Compared with the traditional mode of prefabricating raw materials, the production mode of the invention is more flexible and is convenient for quick adjustment. Meanwhile, the screw conveyor 49 is adopted for quantitative conveying, so that the raw material proportion is accurate, and the batching is efficient. In order to enable monitoring of the material in the compartments, a level detector 53 is provided in each of said compartments.

Claims

1. A rapid punching press comprises a frame (1), and a raw material storage mixing cylinder (3), a filler trolley (4) and a punch forming device (5) which are sequentially arranged on a workbench (2) of the frame (1); a forming die (6) is arranged below the punch forming device (5);

the method is characterized in that: a discharging plate (32) inclined downwards is arranged on the workbench (2) on one side, away from the raw material storage mixing cylinder (3), of the forming die (6), and the discharging plate (32) is composed of a plate body (33) and a rubber cushion layer (34) arranged on the upper surface of the plate body (33); a plurality of convex ribs (35) extending along the width direction of the stripper plate (32) are arranged on the rubber cushion layer (34) side by side, and the cross sections of the convex ribs (35) are semicircular; the discharging plate (32) is uniformly provided with a plurality of slag leaking holes (36) which penetrate through the rubber cushion layer (34) and the plate body (33).

2. The rapid stamping press according to claim 1, wherein: both sides of the stripper plate (32) are provided with side plates (37) along the length direction of the stripper plate (32).

3. The rapid stamping press according to claim 2, wherein: the upper end of the discharging plate (32) is connected with the workbench (2) through a flexible connecting section (38), and the lower end of the discharging plate (32) is also connected with a lifting plate of the punch forming device (5) through a swinging driving assembly; the swing driving device comprises a vertical rod (39) fixedly arranged on the workbench (2), and a guide hole (40) is formed in the top end of the vertical rod (39); the side plate (37) at the overhanging end of the stripper plate (32) is provided with a rope hole (41), one end of the pull rope is connected with the rope hole (41), and the other end of the pull rope passes through the guide hole (40) and then is connected with the lifting plate of the punch forming device (5).

4. The rapid stamping press according to claim 3, wherein: a transfer cart (42) is further arranged below the overhanging end of the discharging plate (32).

5. The rapid stamping press according to claim 4, wherein: the lower surface of the stripper plate (32) is also provided with a slag collecting bin (43), and the bottom of the slag collecting bin (43) is provided with a discharge door (44).

6. The rapid stamping press according to claim 5, wherein: the filling trolley (4) comprises a hollow trolley body (7), and a storage bin for temporarily storing the powder raw materials is formed inside the trolley body (7); a blanking hole (8) penetrating through the bottom surface of the vehicle body (7) is formed in the bottom of the vehicle body (7); the upper part of one side of the vehicle body (7) is communicated with the bottom of the raw material storage mixing cylinder (3) through a connecting pipe (9), the top of the vehicle body (7) is provided with a mounting box (10), and a filling promoting mechanism is arranged in the mounting box (10);

the filler promoting mechanism comprises a vertical vibrating rod (11), a vibration driving assembly and a lifting driving assembly; the upper end of the vibrating rod (11) is arranged in the mounting box (10), and the lower end of the vibrating rod penetrates through a yielding hole in the bottom of the mounting box (10) and extends into the vehicle body (7); the position of vibrating arm (11) is relative with blanking hole (8), and vibrating arm (11) can form the vibration under the drive of vibration drive assembly, and can pass blanking hole (8) under the drive of lift drive assembly and stretch into or withdraw from the die cavity of forming die (6).

7. The rapid stamping press according to claim 6, wherein: the vibration driving assembly comprises a contact rod (12) which is arranged at the lower part of the mounting box (10) and extends along the transverse direction, the middle section of the contact rod (12) is in contact with the vibration rod (11), one end of the contact rod (12) is provided with a vibration motor (13), and the other end of the contact rod is provided with a hinge joint (14); the contact rod (12) is hinged with the hinge seat (15) through the hinge joint (14), and a torsion spring used for pressing the contact rod (12) against the vibrating rod (11) is arranged between the hinge seat (15) and the hinge joint (14).

8. The rapid stamping press according to claim 7, wherein: a vibration intensity adjusting pad (16) is arranged on one surface, which is in contact with the vibrating rod (11), of the middle section of the contact rod (12), the vibration intensity adjusting pad (16) is a strip-shaped plastic sheet extending along the length direction of the contact rod (12), and the vibration intensity adjusting pad (16) gradually becomes thicker towards the direction close to the vibrating motor (13); the vibration intensity adjusting device further comprises a transverse adjusting assembly for driving the contact rod (12) to move along the transverse direction so as to enable positions with different thicknesses of the vibration intensity adjusting pad (16) to be in contact with the vibration rod (11).

9. The rapid stamping press according to claim 8, wherein: the lifting driving assembly comprises a linear motor (21) fixedly arranged on the top surface of the mounting box (10), the output end of the linear motor (21) faces downwards, an upper connecting disc (22) is arranged at the end part of the linear motor, a lower connecting disc (23) is arranged below the upper connecting disc (22), and the vibrating rod (11) is fixedly arranged on the lower connecting disc (23); the upper connecting disc (22) and the lower connecting disc (23) are connected with each other through a plurality of short rubber rods (24).

10. The rapid stamping press according to claim 9, wherein: the vibrating rod (11) is a hollow rod, and a plurality of air passing micropores are formed in the side wall of the vibrating rod (11); the filter element for the powder raw materials is arranged in the vibrating rod (11), and the upper end of the vibrating rod (11) is communicated with an exhaust pump (28) fixedly arranged at the top of the mounting box (10) through an air hose (27).