A circuit board blanking cutting and stamping die

Abstract

The application discloses a circuit board blanking cutting stamping die, which comprises an upper die, a lower die and a fan, wherein the lower die comprises a lower die plate and a lower die base; a plurality of blanking holes corresponding to punches of the upper die are arranged on the lower die plate; the lower die plate is fixed on the lower die base, a stacking space is arranged below the lower die base, and the fan is arranged outside the stacking space; a plurality of discharge ports corresponding to the blanking holes are arranged on the lower die base; a cutting blade is arranged in the discharge port or the blanking hole, the setting direction of the cutting blade is perpendicular to the blowing direction of the fan, the cutting blade is used for cutting waste of a circuit board to be stamped, a first gap is left between the cutting blade and the limit stamping depth of the corresponding punch, and the first gap is smaller than the thickness of the circuit board to be stamped.

Description

Technical Field

[0001] This invention relates to the field of stamping dies, and in particular to a circuit board blanking and cutting stamping die. Background Technology

[0002] Stamping is a forming process that uses a press and dies to apply external force to sheet metal, strip, tube, and profiles, causing them to undergo plastic deformation or separation, thereby obtaining workpieces (stamped parts) of the desired shape and size. Stamping and forging both belong to plastic processing (or pressure processing) and are collectively referred to as forging and pressing.

[0003] During the circuit board stamping process, the scrap material corresponding to the openings is discharged from the blanking hole of the lower die and the discharge port of the lower die holder in sequence. However, existing stamping dies are prone to scrap blockage, resulting in unsatisfactory stamping quality and even damage to the stamping die itself. Summary of the Invention

[0004] The applicant's research revealed that the blockage at the blanking and discharge ports of the stamping dies is most likely due to the waste material not being promptly blown away by the blower, causing it to accumulate and eventually blockage. The waste material is not being blown away by the blower in a timely manner because some individual pieces of waste are heavy and have a small surface area exposed to airflow.

[0005] In view of the aforementioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a circuit board blanking and cutting stamping die, which aims to cut the waste material, reduce the weight of a single waste material and increase the waste material's air-receiving area, and avoid causing waste material blockage in the stamping die.

[0006] To achieve the above objectives, the present invention provides a circuit board blanking and cutting stamping die, the blanking and cutting stamping die comprising: an upper die, a lower die, and a fan;

[0007] The lower die includes a lower template and a lower die base; the lower template is provided with multiple blanking holes corresponding to the punches of the upper die; the lower template is fixed to the lower die base, and there is a material stacking space below the lower die base, with a fan arranged outside the material stacking space; the lower die base is provided with multiple discharge ports corresponding to the blanking holes; a cutting blade is provided in the discharge port or the blanking hole, and the direction of the cutting blade is perpendicular to the blowing direction of the fan. The cutting blade is used to cut the scrap of the circuit board to be stamped, and a first gap is left between the cutting blade and the limit stamping depth of the corresponding punch, the first gap being smaller than the thickness of the circuit board to be stamped.

[0008] Optionally, the cutting blade is a wedge-shaped structure that gradually thins from bottom to top, used to increase the cutting pressure of the cutting blade.

[0009] Optionally, the two sides of the cutting blade are inclined at different angles, so that the cut waste falls along the two sides of the cutting blade in sequence.

[0010] Optionally, a cutting blade is arranged in the discharge port or the blanking hole, in particular:

[0011] A blade mounting table is arranged in the discharge port or the blanking hole, and the cutting blade is mounted on the blade mounting table.

[0012] Optionally, one or more cutting blades are arranged in the discharge port or the blanking hole.

[0013] Optionally, the discharge port or the blanking hole is provided with a corresponding number of cutting blades corresponding to the area of the discharge port or the blanking hole.

[0014] Optionally, the discharge port is inclined, so that the angle between the waste falling along the inclined inner wall of the discharge port and the horizontal plane increases, and the wind area increases.

[0015] Optionally, the lower die further comprises a lower ejection plate, wherein an outer contour of the lower die plate matches the to-be-punched circuit board, an inner contour of the lower ejection plate matches the to-be-punched circuit board, and the lower die plate is arranged on the inner side of the lower ejection plate; and a first elastic expansion member is further arranged between the lower ejection plate and the lower die seat.

[0016] Optionally, the upper die comprises an upper blanking plate, an upper ejection plate, and an upper clamping plate.

[0017] An outer contour of the upper ejection plate matches the to-be-punched circuit board, an inner contour of the upper blanking plate matches the to-be-punched circuit board, and the upper ejection plate is arranged on the inner side of the upper blanking plate; the upper clamping plate is fixedly connected above the upper blanking plate, the punch is arranged on the upper clamping plate, the arrangement position of the punch matches the punching area of the to-be-punched circuit board, and a plurality of punch guide holes corresponding to the punch are arranged on the upper ejection plate; and a second elastic expansion member is connected between the upper clamping plate and the upper ejection plate.

[0018] Optionally, the lower ejection plate is provided with a first guide hole, and a guide column corresponding to the first guide hole is arranged on the lower die seat; the first guide hole and the guide column are sleeved to arrange the lower ejection plate above the lower die seat, and the upper blanking plate is further provided with a second guide hole corresponding to the guide column.

[0019] The beneficial effects of the present application are as follows: 1. By arranging a cutting blade in the discharge port or the blanking hole, the cutting blade can cut the single waste falling from punching, thereby reducing the weight of the single waste, so that the single waste with reduced weight is more easily blown away by the fan, and blockage is avoided.

[0020] 2、The present application is through the setting direction of cutting blade is perpendicular to the blowing direction of fan, so that the single waste increases the wind area after cutting, so that the same size of waste can be more easily blown away by the fan, avoiding the blockage.

[0021] 3、The present application has a first gap between the cutting blade and the corresponding punch limit stamping depth, which is smaller than the thickness of the to-be-stamped circuit board. This can not only ensure the cutting of larger waste, but also avoid the damage to the punch.

[0022] 4、The cutting blade of the present application is wedge-shaped structure from bottom to top, which is used to increase the cutting pressure of the cutting blade. Increasing the cutting pressure can cut the waste faster and better.

[0023] 5、The two sides of the cutting blade of the present application have different inclinations, so that the waste after cutting falls along the two sides of the cutting blade. This makes the waste on the side with larger inclination fall slower after passing through more length, so that the first and second falling can avoid the overlapping of the waste after cutting in the blowing direction, resulting in poor blowing effect.

[0024] 6、The present application is provided with a corresponding number of cutting blades in the discharge port or the material falling hole. This can ensure that the weight of each waste after cutting is low enough to be blown away by the fan.

[0025] 7、The discharge port of the present application is inclined, so that the waste slides along the inclined inner wall of the discharge port and forms an angle with the horizontal plane to increase the wind area. Compared with the prior art, the present application increases the wind area by the structure, so that the same size of waste can be more easily blown away by the fan, avoiding the blockage.

[0026] In summary, the present application can cut the waste, reduce the weight of single waste and increase the wind area of waste, avoiding the blockage of the stamping die. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is an explosion structure schematic diagram of a circuit board material cutting stamping die provided by an embodiment of the present application;

[0028] Figure 2 is a front view structure schematic diagram of a circuit board material cutting stamping die provided by an embodiment of the present application;

[0029] Figure 3is a side structure schematic view of a cutting blade of a circuit board blanking cutting stamping die provided by an embodiment of the present application;

[0030] Figure 4 is a side structure schematic view of a cutting blade of a circuit board blanking cutting stamping die provided by another embodiment of the present application. DETAILED DESCRIPTION

[0031] The present application discloses a circuit board blanking cutting stamping die, and those skilled in the art can improve technical details to realize it by referring to the content herein. It is particularly pointed out that all similar replacements and changes are obvious to those skilled in the art, and they are regarded as included in the present application. The method and application of the present application have been described by the preferred embodiments, and relevant personnel can obviously make changes or appropriate changes and combinations to the method and application described herein without departing from the content, spirit and scope of the present application, to realize and apply the present application technology.

[0032] The applicant found that the blanking port and the discharge port of the stamping die are easily blocked, which is probably due to that the waste is not blown away by the fan for cleaning in time, resulting in the accumulation of waste and the blockage. The waste is not blown away by the fan for cleaning in time because a part of the waste has large weight and small wind area.

[0033] Therefore, the present application discloses a circuit board blanking cutting stamping die, as shown in Figure 1 and Figure 2 , which comprises an upper die, a lower die and a fan.

[0034] The lower die comprises a lower die plate 1 and a lower die seat 2.

[0035] The lower die plate 1 is provided with a plurality of blanking holes 3 corresponding to the punches 12 of the upper die; the lower die plate 1 is fixed on the lower die seat 2, and the lower die seat 2 is provided with a stacking space 6 below, and the fan is arranged outside the stacking space 6; the lower die seat 2 is provided with a plurality of discharge ports 4 corresponding to the blanking holes 3, and the cutting blade 5 is arranged in the discharge port 4 or the blanking hole 3, and the arrangement direction of the cutting blade 5 is perpendicular to the blowing direction of the fan; the cutting blade 5 is used for cutting the waste of the circuit board to be punched; the first gap is left between the cutting blade 5 and the limit punching depth of the corresponding punch 12, and the first gap is smaller than the thickness of the circuit board to be punched.

[0036] Figure 1 and Figure 2 , the fan is not shown, and in Figure 1 , the arrow direction is the blowing direction of the fan.

[0037] It should be noted that in the process of punching the circuit board, the punching die may be blocked. The applicant found in the production process that the blockage is generally caused by the fact that part of the waste material is not blown away by the corresponding air force, and the waste material under the punching die is piled up more and more, causing the punching die to be blocked. To make the large waste material be blown away, the weight of the large waste material can be reduced or the wind area of the large waste material can be increased (the force of the fan on the large waste material is increased), and the embodiment of the present application first cuts the large waste material (in the embodiment of the present application, the large waste material is determined as the waste material with an area greater than a preset area) by using the cutting blade 5 to divide the large waste material into small waste material and reduce the weight; secondly, the setting direction of the cutting blade 5 is perpendicular to the blowing direction of the fan, so that the waste material is first acted on by the cutting blade 5 to become nearly vertical during the falling process, and the waste material is perpendicular to the wind direction, so that the wind area of the waste material is increased, and the force is increased, so that the waste material is easily blown away by the fan.

[0038] In addition, it is worth mentioning that under the premise of being able to cut the waste material, in order to ensure that the cutting blade 5 does not collide with the corresponding punch 12 and damage the punch 12, the cutting blade 5 and the limit punching depth of the corresponding punch 12 are left with a first gap, and the first gap is smaller than the thickness of the circuit board to be punched. In this way, the punch 12 can be prevented from being damaged.

[0039] In a specific embodiment, as shown in Figure 3 or Figure 4 The cutting blade 5 is a wedge-shaped structure that gradually thins from bottom to top, which is used to increase the cutting pressure of the cutting blade 5.

[0040] It should be noted that in this way, the cutting blade 5 can be sharp enough to cut the waste material.

[0041] In a specific embodiment, as shown in Figure 4 The inclination of the two sides of the cutting blade 5 is different, so that the cut waste material falls along the two sides of the cutting blade 5 in sequence.

[0042] It should be noted that in this way, the waste material on the side with a larger inclination can fall more slowly through a longer length, and the sequential falling can avoid the overlapping of the cut waste material in the blowing direction, which causes poor blowing effect.

[0043] In a specific embodiment, the cutting blade 5 is arranged in the discharge port 4 or the material falling hole 3, and specifically:

[0044] The cutting blade 5 is arranged in the discharge port 4 or the material falling hole 3.

[0045] The purpose of setting the mounting table is to make the blade a replaceable product, so as to avoid the case that the entire lower die seat 2 needs to be replaced when the blade is damaged.

[0046] In a specific embodiment, one or more cutting blades 5 are arranged in the discharge port 4 or the material dropping hole 3.

[0047] In another specific embodiment, the discharge port 4 or the material dropping hole 3 is provided with a number of cutting blades 5 corresponding to the area of the discharge port 4 or the material dropping hole 3.

[0048] The number of cutting blades 5 corresponding to the area of the discharge port 4 or the material dropping hole 3 is to cut large waste into waste that can be blown away. Avoid the situation of cutting only once or the weight is not small enough to be blown away.

[0049] In a specific embodiment, the discharge port 4 is inclined to increase the wind area when the waste slides along the inclined inner wall of the discharge port 4.

[0050] Further, the discharge port 4 is inclined when the area of the discharge port is less than the preset area.

[0051] It should be noted that such a structure allows waste that is not cut to slide along the inclined inner wall of the discharge port 4 to increase the wind area with the horizontal plane. It can be more easily blown away by the fan, avoiding blockage.

[0052] In a specific embodiment, as shown in Figure 1 and Figure 2 The lower die further includes a lower ejection plate 7, the outer contour of the lower die plate 1 matches the to-be-punched circuit board, the inner contour of the lower ejection plate 7 matches the to-be-punched circuit board, and the lower die plate 1 is arranged on the inner side of the lower ejection plate 7. The first elastic expansion member 8 is further arranged between the lower ejection plate 7 and the lower die seat 2.

[0053] Further, as shown in Figure 1 and Figure 2 The upper die includes an upper blanking plate 9, an upper ejection plate 10, and an upper clamping plate 11.

[0054] The outer contour of the upper ejection plate 10 matches the to-be-punched circuit board, the inner contour of the upper blanking plate 9 matches the to-be-punched circuit board, and the upper ejection plate 10 is arranged on the inner side of the upper blanking plate 9. The upper clamping plate 11 is fixedly connected above the upper blanking plate 9, the punch 12 is arranged on the upper clamping plate 11, the arrangement position of the punch 12 matches the punching area of the to-be-punched circuit board, and a plurality of punch guide holes 13 corresponding to the punch 12 are arranged on the upper ejection plate 10. The second elastic expansion member 14 is connected between the upper clamping plate 11 and the upper ejection plate 10.

[0055] Further, as shown in Figure 1 and Figure 2As shown, the lower stripper plate 7 is provided with a first guide hole 15, and the lower die seat 2 is provided with a guide column 16 corresponding to the first guide hole 15; the first guide hole 15 and the guide column 16 are sleeved to arrange the lower stripper plate 7 above the lower die seat 2, and the upper blanking plate 9 is further provided with a second guide hole 17 corresponding to the guide column 16.

[0056] It should be noted that the specific structure of the upper die and the lower die makes the stamping process more clear, the upper blanking plate 9, the upper stripper plate 10, the lower die plate 1 and the lower stripper plate 7 make the peripheral structure of the circuit board formed, and the punch 12 makes the area of the circuit board which needs to be punched or blanked formed.

[0057] The embodiment of the present application is characterized in that the cutting blade 5 is arranged in the discharge port 4 or the blanking hole 3, so that the cutting blade 5 cuts the single waste material falling from stamping, thereby reducing the weight of the single waste material, so that the single waste material with reduced weight is more easily blown away by the fan, thereby avoiding blockage.

[0058] The embodiment of the present application is characterized in that the setting direction of the cutting blade 5 is perpendicular to the blowing direction of the fan, so that the wind receiving area of the single waste material is increased after cutting, so that the same size of waste material can be subjected to greater wind force, and is more easily blown away by the fan, thereby avoiding blockage.

[0059] The first gap between the cutting blade 5 and the limit stamping depth of the corresponding punch 12 is less than the thickness of the circuit board to be stamped, so that the cutting of the larger waste material can be ensured, and the cutting blade 5 directly releases the punch 12, thereby avoiding damage to the punch 12.

[0060] The cutting blade 5 of the embodiment of the present application is a wedge-shaped structure gradually thinned from bottom to top, for increasing the cutting pressure of the cutting blade 5. Increasing the cutting pressure can cut the waste material faster and better.

[0061] The two sides of the cutting blade 5 of the embodiment of the present application have different inclinations, so that the waste material after cutting falls along the two sides of the cutting blade 5 in turn. Thus, the waste material on the side with greater inclination can fall slowly through more length, and the in turn falling can avoid the waste material after cutting overlapping in the blowing direction, thereby causing poor blowing effect of the fan.

[0062] The embodiment of the present application is characterized in that the cutting blade 5 corresponding in number to the area of the discharge port 4 or the blanking hole 3 is arranged in the discharge port 4 or the blanking hole 3. Thus, the weight of each waste material after cutting can be low enough to be blown away by the fan.

[0063] The material outlet 4 corresponding to the blanking hole 3 is inclined, so that the angle between the waste and the horizontal plane is increased when the waste slides along the inclined inner wall of the material outlet 4, and the wind receiving area is increased. Compared with the prior art, the waste can be blown away by the fan more easily, and the waste is not blocked, by the structure of the embodiment of the present application.

[0064] In summary, the embodiment of the present application can cut the waste, reduce the weight of a single waste and increase the wind receiving area of the waste, so that the waste is not blocked in the stamping die.

[0065] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0066] Each of the embodiments in the specification is described in a relevant manner, and the same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the difference from other embodiments. In particular, the system embodiment is basically similar to the method embodiment, and the description is relatively simple, and the relevant parts can be referred to the part of the method embodiment.

[0067] The above only describes the preferred embodiments of the present application, and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A line board blanking cutting press die, characterized by, The blanking cutting stamping die comprises an upper die, a lower die and a fan; The lower die comprises a lower die plate and a lower die base; the lower die plate is provided with a plurality of blanking holes corresponding to punches of the upper die; the lower die plate is fixed on the lower die base, and the lower die base is provided below with a material stacking space, and the material stacking space is provided outside with a fan; the lower die base is provided with a plurality of discharge ports corresponding to the blanking holes; a cutting blade is arranged in the discharge port or the blanking hole, and the cutting blade is arranged perpendicularly to a blowing direction of the fan; the cutting blade is used for cutting waste material of a to-be-stamped circuit board; a first gap is left between the cutting blade and a limit stamping depth of the corresponding punch, and the first gap is smaller than a thickness of the to-be-stamped circuit board; the cutting blade is a wedge-shaped structure gradually thinned from bottom to top, and is used for increasing a cutting pressure of the cutting blade; the discharge port is arranged obliquely, so that when the waste material slides along an oblique inner wall of the discharge port, an angle between the waste material and a horizontal plane is increased, and a wind receiving area is increased.

2. The circuit board blanking and cutting press die according to claim 1, characterized by, The cutting blade is provided with different inclinations on two sides, so that the waste material after cutting falls along the two sides of the cutting blade in sequence.

3. The circuit board blanking and cutting press die of claim 1, wherein, The cutting blade is arranged in the discharge port or the blanking hole, and specifically, The cutting blade is arranged on a blade mounting table arranged in the discharge port or the blanking hole.

4. The circuit board blanking and cutting press die of claim 1, wherein, One or more cutting blades are arranged in the discharge port or the blanking hole.

5. The circuit board blanking and cutting press according to claim 1, wherein, The discharge port or the blanking hole is provided with a number of cutting blades corresponding to an area of the discharge port or the blanking hole.

6. The circuit board blanking and cutting press according to claim 1, wherein, The lower die further comprises a lower discharge plate; an outer contour of the lower die plate matches the to-be-stamped circuit board; an inner contour of the lower discharge plate matches the to-be-stamped circuit board; the lower die plate is arranged on an inner side of the lower discharge plate; and a first elastic expansion member is further arranged between the lower discharge plate and the lower die base.

7. The circuit board blanking and cutting press according to claim 6, wherein The upper die comprises an upper blanking plate, an upper discharge plate and an upper clamp plate; An outer contour of the upper discharge plate matches the to-be-stamped circuit board; an inner contour of the upper blanking plate matches the to-be-stamped circuit board; the upper discharge plate is arranged on an inner side of the upper blanking plate; the upper clamp plate is fixedly connected above the upper blanking plate; the punch is arranged on the upper clamp plate; an arrangement position of the punch matches a stamping area of the to-be-stamped circuit board; a plurality of punch guide holes corresponding to the punch are arranged on the upper discharge plate; and a second elastic expansion member is connected between the upper clamp plate and the upper discharge plate.

8. The circuit board blanking and cutting press according to claim 7, wherein, The lower discharge plate is provided with a first guide hole, and the lower die base is provided with a guide column corresponding to the first guide hole; the first guide hole and the guide column are sleeved to arrange the lower discharge plate above the lower die base; and the upper blanking plate is further provided with a second guide hole corresponding to the guide column.

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