CN217748883U - Blanking device of sheet material - Google Patents

Abstract

The utility model discloses a blanking device of sheet material, including terrace die component, die component and terrace die component cooperation carry out the blanking to the sheet material, are equipped with first cutting edge, second cutting edge, third cutting edge on the terrace die among the terrace die component, and when the blanking to the one-time blanking shaping of sheet material, and first cutting edge, second cutting edge, third cutting edge carry out rough cut, maintain, the finish cut to the sheet material respectively. The utility model discloses a terrace die is to three steps of cutting of sheet material, effectively prevents that the sheet material can form the problem of tearing the area at the blanking in-process.

Description

Blanking device of sheet material

Technical Field

The utility model relates to a punching press technical field, in particular to blanking device of sheet material.

Background

Blanking, a stamping method which separates the plate material from the blank material with a closed contour by using a stamping die. Blanking is a stamping process in which a die is used to separate a portion of a material or work piece from another portion of the material, work piece, or scrap. The blanking is a general name of the separation processes of cutting, blanking, punching, notching, chiseling, trimming, tongue cutting, trimming and the like.

The blanking cutter in the prior art comprises a blanking female die (namely, a blanking cutter) and a male die, and is matched with the male die in a concave-convex mode, so that blanking is performed.

Disclosure of Invention

In order to solve the problem, the utility model provides a blanking cutter carries out the sectional type blanking to the sheet material of punching and cutting in-process, can effectively avoid the sheet material blanking in-process the condition in area of tearing to appear to take place, and concrete content is as follows:

a blanking device of the sheet material, including terrace die assembly, the die assembly exerts pressure to the sheet material, in order to cooperate with terrace die assembly to carry on the blanking to the sheet material, characterized by, also include;

the male die comprises a male die body and a plurality of raised lines arranged on the peripheral surface of the male die body at intervals, a first groove and a second groove are formed between every two adjacent raised lines, the first groove protrudes out of the second groove, and the peripheral surface of the male die body is in a concave-convex shape;

the peripheral surface of the male die is provided with a first cutting edge, a second cutting edge, a third cutting edge, a first cutting edge, a second cutting edge and a third cutting edge, wherein the diameters of the peripheral surface of the male die body and the peripheral surface of the convex strip are sequentially increased;

the male die also comprises a male die bottom mounting plate which is connected with one end of the male die body

The male die component comprises a material ejecting mounting plate, a material pressing transition plate, a male die mounting plate, a limiting column, a guide column, a fixing part, a discharging plate, a central positioning part, a male die mounting screw and a limiting part, wherein the material ejecting mounting plate is connected with the material ejecting transition plate, the material ejecting transition plate is connected with the male die mounting plate, the male die mounting plate is connected with a male die through the male die mounting screw, the limiting column and the guide column are respectively connected with the male die mounting plate, the fixing part is connected with and matched with the male die mounting plate to accommodate the male die, the discharging plate is connected with the central positioning part through the limiting part, and the central positioning part is matched with the male die.

The limiting part comprises a spring and a bolt, the spring is sleeved on the bolt, one part of the bolt is matched with the discharging plate, and the other part of the bolt is matched with the central positioning part.

The die assembly comprises a die, a die mounting plate, a pressing transition plate and a pressing mounting plate, the die is connected with the die mounting plate, the die mounting plate is connected with the pressing transition plate, the pressing transition plate is connected with the pressing mounting plate, and the die is matched with the male die.

The material pressing device is characterized in that a driving connecting portion is arranged on the material pressing mounting plate, the material pressing transition plate is matched with the material pressing mounting plate to form a first cavity, an induction component, a movable plate and a connecting bolt are arranged in the first cavity, the induction component is matched with the movable plate, one end of the connecting bolt is fixedly connected with the movable plate, and the other end of the connecting bolt is connected with the material pressing transition plate.

The die assembly is provided with a blowing mechanism, the blowing mechanism comprises an air pipe and an air pipe connecting plate, the air pipe is connected with the air pipe connecting plate, the air pipe connecting plate is located between the material pressing transition plate and the material pressing mounting plate, and the blowing mechanism is matched with the sensing component, the movable plate and the connecting bolt.

The air pipe connecting plate is provided with a through hole, a plate trough is further arranged between the pressing transition plate and the pressing mounting plate, and the through hole is matched with the plate trough, so that the waste materials are blown out of the plate trough by the blowing mechanism.

The blanking device provided by the utility model is matched with the male die component through the female die component, and performs blanking on the plate material arranged between the female die component and the male die component; because the male die of the male die assembly is made of a special shape (namely, the peripheral surface of the male die is of a concave-convex structure, and the whole peripheral surface is provided with a first cutting edge, a second cutting edge and a third cutting edge), in the blanking process, firstly, the whole sheet material is in contact with the axial end surface of the male die, then, the female die assembly continues to apply pressure, and the male die assembly and the female die assembly form opposite acting force to enable the sheet material to be blanked; in the whole blanking process, the first cutting edge performs first-step rough cutting on the plate, the second cutting edge performs second-step trimming on the plate, and the third cutting edge performs third-step fine cutting on the plate.

Thus, the sheet is cut by the male die in three steps, namely, the sheet is blanked in one step and is formed in one step although the sheet is cut in three steps; in order not to let the sheet material form the area of tearing in blanking process, then can choose for use the utility model provides a blanking device.

Drawings

Fig. 1 is a front view of a blanking device;

fig. 2 is a perspective view of a punch in the blanking device;

FIG. 3 is a cross-sectional view of the male die;

fig. 4 is a rear view of the blanking device;

fig. 5 is a right perspective view of the blanking device;

FIG. 6 is a schematic view of the engagement of the screw with the resilient member;

FIG. 7 is a schematic view of the connection bolt in cooperation with the sensing component and the swaging transition plate;

fig. 8 is an enlarged view of a portion a in fig. 3.

Reference numbers in the drawings:

the punch die comprises a punch body 1, a first cutting edge 1a, a second cutting edge 1b, a third cutting edge 1c, a convex strip 2, a first groove 2a, a second groove 2b, a punch bottom mounting plate 3, a jacking mounting plate 4, a jacking transition plate 5, a punch mounting plate 6, a limiting column 7, a guide column 8, a fixing part 9, a discharging plate 10, a central positioning part 11, a punch mounting screw 12, a limiting part 13, a spring 13a, a bolt 13b, a female die 14, a waste hole 14a, a female die mounting plate 15, a material pressing transition plate 16, a material pressing mounting plate 17, a driving connecting part 18, a first cavity 19, a sensing part 20, a movable plate 21, a connecting bolt 22, an air pipe connecting plate 23, a through hole 23a, a plate groove 24, an air pipe 25, a screw 31 and an elastic part 31a.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

It should be noted that the terms "upper, lower, left, right" and the like used herein are only used for simplifying and explaining the drawings, and do not represent the final embodiments of the present embodiment.

As shown in fig. 1 to 3 and 8, a blanking device for a sheet material includes a male die assembly and a female die assembly, wherein the female die assembly applies pressure to the sheet material to match with the male die assembly to blank the sheet material, and the blanking device is characterized by further including;

the male die for cutting the plate comprises a male die body 1 and a plurality of convex strips 2 arranged on the circumferential surface of the male die body 1 at intervals, a first groove 2a and a second groove 2b are formed between every two adjacent convex strips 2, the first groove 2a protrudes out of the second groove 2b, and the circumferential surface of the male die body 1 is in a concave-convex shape;

the peripheral surface of the convex die is provided with a first cutting edge 1a, a second cutting edge 1b and a third cutting edge 1c which are positioned on the convex die body 1 and the convex strip 2, and the diameters of the peripheral surfaces of the first cutting edge 1a, the second cutting edge 1b and the third cutting edge 1c are sequentially increased;

the male die further comprises a male die bottom mounting plate 3, and the male die bottom mounting plate 3 is connected with one end of the male die body 1.

In the embodiment, the female die assembly is driven, the male die assembly is fixed, the female die assembly is driven to move downwards, and after the female die assembly contacts a sheet material, the sheet material is blanked by the male die body 1 because the male die body 1 of the male die assembly is convex; in the embodiment, the male die comprises a male die body 1 and a plurality of convex strips 2 on the peripheral surface, a first groove 2a and a second groove 2b are formed between every two adjacent convex strips, and a first cutting edge 1a, a second cutting edge 1b and a third cutting edge 1c are arranged on the upper end of the male die body 1 (namely the end surface contacting with a plate material) and the peripheral surface of the male die; during blanking, the female die assembly firstly applies pressure to the sheet material, the sheet material contacts the end face of the male die body 1, then, in the first step, the first cutting edge 1a roughly cuts the sheet material to shape the general shape, then, in the second step, the second cutting edge 1b trims the sheet material (because the first cutting edge 1a only performs one opening shaping cutting on the sheet material), in the third step, the third cutting edge 1c finely cuts the sheet material cut by the first cutting edge 1a and the second cutting edge 1b, and finally, the blanking is completed; in the blanking process, the male die penetrates through the female die, then the plate is blanked, and after the blanking is finished, the blanked shape of the plate is the shape of the male die body 1.

As shown in fig. 1 and 4, the male die assembly comprises a material ejection mounting plate 4, a material ejection transition plate 5, a male die mounting plate 6, a limiting column 7, a guide column 8, a fixing part 9, a discharging plate 10, a central positioning part 11, a male die mounting screw 12 and a limiting part 13, wherein the material ejection mounting plate 4 is connected with the material ejection transition plate 5, the material ejection transition plate 5 is connected with the male die mounting plate 6, the male die mounting plate 6 is connected with the male die body 1 through the male die mounting screw 12, the limiting column 7 and the guide column 8 are respectively connected with the male die mounting plate 6, the fixing part 9 is connected with the male die mounting plate 6, the discharging plate 10 is connected with the central positioning part 11 through the limiting part 13, and the central positioning part 11 is matched with the male die body 1.

In the embodiment, the area of the ejection mounting plate 4 is larger than that of the ejection transition plate 5 and the male die mounting plate 6, the length and the width of the ejection transition plate 5 and the male die mounting plate 6 are the same, and the area of the ejection mounting plate 4 is large, so that the ejection mounting plate 4 is used as the lowest part to play a stable role; the punch mounting screw 12 passes through the central screw hole of the punch body 1 and through the punch mounting plate 6, and a part of it extends in the liftout transition plate 5.

In this embodiment, spacing post 7, guide pillar 8 will have a part to wear in die subassembly, terrace die component, when die subassembly pushes down, and spacing post 7, guide pillar 8 that are arranged in the die subassembly can form a decurrent guide effect, and spacing post 7, guide pillar 8 that are arranged in the terrace die component can play a supporting role to its die subassembly that pushes down to can kick back die subassembly to the position before pushing down after the blanking.

In this embodiment, the discharging plate 10, the center positioning member 11, the male die mounting screw 12 and the limiting member 13 are located in the groove of the male die mounting plate 6, the fixing member 9 is outside the groove of the male die mounting plate 6, the fixing member 9 covers the discharging plate 10, the center positioning member 11, the male die mounting screw 12 and the limiting member 13 in the groove of the male die mounting plate 6, a part of the female die 14 extends into the axial hole of the fixing member 9 to be matched with the male die body 1, and the discharging plate 10 and the center positioning member 11 are fixed through the limiting member 13.

As shown in fig. 1 and 4, the position limiting component 13 comprises a spring 13a and a bolt 13b, the spring 13a is sleeved on the bolt 13b, a part of the bolt 13b is matched with the discharging plate 10, and a part of the bolt is matched with the central positioning component 11.

In this embodiment, the preferred bolt 13b who takes spring 13 of selecting for use of stop part, spring 13a overlaps on bolt 13b, in the die subassembly pushes down the in-process, make have one section buffer power between stripper 10 and the central locating part 11, do not let its pressure directly transmit to the axial plane of central locating part 11 on, so design side has played the connection effect to stripper 10 and central locating part 11, on the other hand has reduced the pressure when the die subassembly pushes down, prevent that central locating part 11 from warping because of pressure is too big in long-term working process, thereby influence terrace die body 1 and die 14 cooperation.

As shown in fig. 1 and 4, a driving connection portion 18 is disposed on the material pressing mounting plate 17, the material pressing transition plate 16 is matched with the material pressing mounting plate 17 to form a first cavity 19, an induction component 20, a movable plate 21 and a connection bolt 22 are disposed in the first cavity 19, the induction component 20 is matched with the movable plate 21, one end of the connection bolt 22 is connected with the material pressing transition plate 16, and the other end is connected with the induction component 20.

In this embodiment, a driving connection portion 18 is disposed on the top surface of the pressing mounting plate 17, the driving connection portion 18 may be used for common cylinder driving, oil cylinder driving, and the like, the pressing transition plate 16 is connected to the pressing mounting plate 17, and a first cavity 19 for mounting an induction component 20 is disposed inside the pressing transition plate, the upper end and the lower end of the first cavity 19 are different in size, the upper end is larger than the lower end in size, the upper end is used for limiting the head of the induction component 20, the lower end is used for satisfying the induction position of the induction component 20 so as to be matched with the movable plate 23, and the head of the induction component 20 is preferably connected to the pressing transition plate 16 by a connection bolt 22 (see fig. 7).

As shown in fig. 1 and 4, the female die assembly is further provided with a blowing mechanism, the blowing mechanism comprises an air pipe 25 and an air pipe connecting plate 23, the air pipe 25 is connected with the air pipe connecting plate 23, the air pipe connecting plate 23 is located between the material pressing transition plate 16 and the material pressing mounting plate 17, and the blowing mechanism is matched with the induction component 20, the movable plate 21 and the connecting bolt 22.

The air pipe connecting plate 23 is provided with a through hole, a plate trough 24 is further arranged between the pressing transition plate 16 and the pressing mounting plate 17, and the through hole 23a is matched with the plate trough 24, so that the waste materials are blown out of the plate trough 24 by the blowing mechanism.

In this embodiment, after the sheet material is punched, the formed waste material is pushed down by the female die assembly to enter the sheet material groove 24 between the pressing transition plate 16 and the pressing mounting plate 17 along the waste material hole 30 (as shown in fig. 6), then the gas passes through the gas pipe 25 and then through the through hole on the gas pipe connecting plate 23 to blow off the waste material, and the waste material is blown out of the pressing transition plate 16 and the pressing mounting plate 17 along the sheet material groove 24; if the scraps just fall on the movable plate 21, the sensing part 20 is triggered due to the weight of the scraps, until the sensing part 20 returns to the normal working procedure after the scraps are blown off from the movable plate 21, and the device continues to blank the sheet material.

In this embodiment, as shown in fig. 6, the female die 14 is connected to the female die assembly through a screw 31, the screw 31 passes through the stripper plate 10 of the male die assembly, then passes through the female die 14, then passes through the female die mounting plate 15 and the pressing transition plate, an elastic member 31a is arranged at the head of the screw 31, one end of the elastic member 31a abuts against the pressing mounting plate 17, and the other end of the elastic member 31a is matched with the screw 31; when the die assembly is pressed down integrally, the elastic member 31a has an own elastic force, so that an elastic force is obtained between the pressing mounting plate 17 and the pressing transition plate.

In the embodiment, the pressing and mounting plate 17 and the pressing and transition plate 16 are connected to a driving unit by the driving connection part 18, and then the pressing and mounting plate 17 and the pressing and transition plate 16 are driven downwards, during the pressing process, the die 14 and the die mounting plate 15 are connected with the pressing and mounting plate 17 and the pressing and transition plate 16, so that the die mounting plate 15 and the die 14 also apply pressure downwards, and as the die 14 is a cylinder with a through hole, and the size of the punch body 1 at the lower end is smaller than that of the through hole of the die 14, the pressure plate material is continuously applied downwards and is pushed into the through hole of the die 14 by the punch body 1 (namely, the plate material is cut by the first cutting edge 1a, the second cutting edge 2b and the third cutting edge 2 c), so as to achieve blanking; after blanking, waste materials are formed, when the female die assembly is pressed down, the impact force generated by the male die assembly reaches the innermost part of the plate trough 24 (namely, between the material pressing mounting plate 17 and the material pressing transition plate 15) along the waste material hole 14a, and then the blowing mechanism blows the waste materials out of the plate trough 24.

Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, not to limit the technical solutions, and not to limit the protection scope of the present invention; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (7)

1. A blanking device of the sheet material, including terrace die assembly, the die assembly exerts pressure to the sheet material, in order to cooperate with terrace die assembly to carry on the blanking to the sheet material, characterized by, also include;

the male die for cutting the plate comprises a male die body (1) and a plurality of protruding strips (2) arranged on the peripheral surface of the male die body (1) at intervals, a first groove (2 a) and a second groove (2 b) are formed between every two adjacent protruding strips (2), the first groove (2 a) protrudes out of the second groove (2 b), and the peripheral surface of the male die body (1) is in a concave-convex shape;

the peripheral surface of the convex die is provided with a first cutting edge (1 a), a second cutting edge (1 b) and a third cutting edge (1 c) which are positioned on the convex die body (1) and the convex strip (2), and the diameters of the peripheral surfaces of the first cutting edge (1 a), the second cutting edge (1 b) and the third cutting edge (1 c) are sequentially increased;

the male die further comprises a male die bottom mounting plate (3), and the male die bottom mounting plate (3) is connected with one end of the male die body (1).

2. The blanking device of plate material according to claim 1, wherein the male die assembly comprises an ejection mounting plate (4), an ejection transition plate (5), a male die mounting plate (6), a limiting column (7), a guide column (8), a fixing component (9), a discharging plate (10), a central positioning component (11), a male die mounting screw (12) and a limiting component (13), the ejection mounting plate (4) is connected with the ejection transition plate (5), the ejection transition plate (5) is connected with the male die mounting plate (6), the male die mounting plate (6) is connected with the male die body (1) through the male die mounting screw (12), the limiting column (7) and the guide column (8) are respectively connected with the male die mounting plate (6), the fixing component (9) is connected with the male die mounting plate (6), the discharging plate (10) is connected with the central positioning component (11) through the limiting component (13), and the central positioning component (11) is matched with the male die body (1).

3. Blanking device for sheet material according to claim 2, characterized in that said stop elements (13) comprise springs (13 a), bolts (13 b), the springs (13 a) being fitted over the bolts (13 b), the bolts (13 b) having a part engaging the stripper plate (10) and a part engaging the centering elements (11).

4. The blanking device of the plate according to claim 1, wherein the female die assembly comprises a female die (14), a female die mounting plate (15), a pressing transition plate (16) and a pressing mounting plate (17), the female die (14) is connected with the female die mounting plate (15), the female die mounting plate (15) is connected with the pressing transition plate (16), the pressing transition plate (16) is connected with the pressing mounting plate (17), and the female die (14) is matched with the male die body (1).

5. The blanking device of the plate according to claim 4, wherein a driving connection portion (18) is provided on the swaging mounting plate (17), the swaging transition plate (16) is matched with the swaging mounting plate (17) to form a first cavity (19), an induction component (20), a movable plate (21) and a connection bolt (22) are provided in the first cavity (19), the induction component (20) is matched with the movable plate (21), one end of the connection bolt (22) is fixedly connected with the movable plate (21), and the other end of the connection bolt is connected with the swaging transition plate (16).

6. The blanking device of the plate according to claim 5, wherein the die assembly is provided with a blowing mechanism, the blowing mechanism comprises an air pipe (25) and an air pipe connecting plate (23), the air pipe (25) is connected with the air pipe connecting plate (23), the air pipe connecting plate (23) is located between the swaging transition plate (16) and the swaging mounting plate (17), and the blowing mechanism is matched with the induction component (20), the movable plate (21) and the connecting bolt (22).

7. A blanking device for sheet material according to claim 6, characterized in that the air pipe connecting plate (23) is provided with a through hole, a sheet material groove (24) is further provided between the pressing transition plate (16) and the pressing mounting plate (17), and the through hole (23 a) is matched with the sheet material groove (24) to enable the blowing mechanism to blow the waste material out of the sheet material groove (24).

Images