High-efficiency continuous stamping die

Abstract

The utility model discloses a kind of high-efficiency continuous stamping die, including upper die and lower die, the upper die and lower die are sequentially provided with trimming assembly, hole-punching assembly, middle hole-punching assembly, shaping assembly, contour cutting assembly, material ejecting assembly and packing assembly along the feeding direction of material plate, the packing assembly includes two packing material belts vertically moving relative to the feeding direction of material plate, several workpiece processing units are processed in the longitudinal arrangement on the material plate, the middle hole-punching assembly is formed with inner hole in the workpiece processing unit of material plate, the shaping assembly is formed with convex strip at the edge of inner hole, contour cutting assembly is formed with the pre-breaking contour line of workpiece at the position outside inner hole and convex strip, material ejecting assembly is provided with two groups and is mutually staggered to be arranged, the lower end of one group of material ejecting assembly is provided with multiple ejector pins along longitudinal direction, and automatic production and processing package, guarantee the processing efficiency stability of equipment, conducive to realizing efficient production.

Description

Technical Field

[0001] This utility model belongs to the technical field of stamping dies, specifically relating to a high-efficiency continuous stamping die. Background Technology

[0002] In the process of producing workpieces using stamping dies, the conventional method is to continuously stamp a moving sheet metal, then collect and transfer the formed workpieces to a packaging machine for unified packaging and sale. This process requires cumbersome steps such as material collection, transfer, and repackaging, resulting in high production costs. To improve this situation, existing stamping dies directly place packaging materials at the end of continuous stamping, allowing the finished workpieces to fall into the packaging material belt for on-site sealing, thus eliminating the need for transfer and repackaging. However, due to limitations in the material of the packaging material belt, its packaging speed is limited. Although existing stamping dies have high workpiece forming efficiency, they are difficult to match with packaging efficiency. The overall processing efficiency often decreases due to limitations in equipment size or packaging efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a high-efficiency continuous stamping die to address the aforementioned problems.

[0004] This utility model is achieved through the following technical solution: a high-efficiency continuous stamping die, including an upper die and a lower die, wherein a trimming assembly, a punching assembly, a center hole punching assembly, a shaping assembly, a contour cutting assembly, an ejector assembly, and a packaging assembly located below the ejector assembly are sequentially arranged between the upper die and the lower die along the feeding direction of the material plate. The packaging assembly includes two parallel and spaced packaging strips that move perpendicularly to the feeding direction of the material plate. Several workpiece processing units are longitudinally arranged on the material plate. The center hole punching assembly punches an inner hole within the workpiece processing unit of the material plate. The shaping assembly punches a protrusion at the edge of the inner hole. The contour cutting assembly punches a pre-cut contour line of the workpiece at a position other than the inner hole and the protrusion. Two sets of ejector assemblies are provided corresponding to the packaging strips and are staggered to each other. Multiple ejector pins are provided longitudinally at the lower end of one set of ejector assemblies.

[0005] Furthermore, the bottom surface of the ejector pin is provided with a groove corresponding to the protrusion above it for positioning.

[0006] Furthermore, two convex strips are symmetrically stamped at the edge of the inner hole, and the bottom cross-sectional shape of the ejector pin is M-shaped.

[0007] Furthermore, the stamping action between two adjacent workpiece processing units located in the same column is spaced once.

[0008] Furthermore, the number of workpiece processing units on any column of the material plate is 6.

[0009] This invention features a staggered arrangement of packaging strips and corresponding top-loading components. After a workpiece on one column of the material plate is formed, when it is located below a set of top-loading components along the feeding direction, a portion of the workpiece is pushed down by ejector pins into the packaging strip below for sealing. When it moves to the bottom of another set of top-loading components, the remaining part of the workpiece is then pushed down and sealed. Compared to general stamping and packaging integrated equipment, the two sets of packaging strips are staggered to package the workpieces in the same column, effectively combining the high-efficiency production and processing of continuous stamping equipment. While automating production and packaging, it also ensures stable processing efficiency of the equipment, which is conducive to achieving high-efficiency production. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the mold structure of this utility model; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a top view of the material plate and packaging material belt during the continuous processing of this utility model.

[0011] The attached figures are labeled as follows: 11. Upper mold; 12. Lower mold; 21. Edge trimming assembly; 22. Edge hole punching assembly; 23. Center hole punching assembly; 24. Shaping assembly; 25. Contour line cutting assembly; 26. Ejector assembly; 27. Packaging assembly; 3. Packaging strip; 4. Material plate; 41. Inner hole; 42. Raised strip; 43. Pre-cut contour line; 5. Ejector pin; 51. Groove. Detailed Implementation

[0012] The present invention will be further illustrated below with reference to specific examples and accompanying drawings.

[0013] like Figures 1-3As shown, this utility model describes a high-efficiency continuous stamping die, including an upper die 11 and a lower die 12. Between the upper die 11 and the lower die 12, along the feeding direction of the material plate 4, are sequentially arranged an edge trimming assembly 21, an edge punching assembly 22, a center hole punching assembly 23, a shaping assembly 24, a contour cutting assembly 25, an ejector assembly 26, and a packaging assembly 27 located below the ejector assembly 26. The packaging assembly 27 includes two parallel and spaced packaging strips 3 that move perpendicularly to the feeding direction of the material plate 4, wherein the feeding direction of the material plate 4 is transverse. The material plate 4 has several workpiece processing units arranged longitudinally perpendicular to the feeding direction. The center hole punching component 23 punches an inner hole 41 in the workpiece processing unit of the material plate 4. The shaping component 24 punches a protrusion 42 at the edge of the inner hole 41. The contour line cutting component 25 punches a pre-cut contour line 43 of the workpiece at a position other than the inner hole 41 and the protrusion 42. The top material component 26 is provided in two sets corresponding to the packaging material belt 3 and is staggered with each other. The lower end of one set of the top material component 26 is provided with multiple ejector pins 5 along the longitudinal direction.

[0014] As the material plate 4 is placed between the upper die 11 and the lower die 12 from one side of the stamping device and moves continuously along the feeding direction, the edge trimming assembly 21 removes the burrs from the material plate 4 and cuts it to the appropriate size. As the material plate 4 moves further, the edge punching assembly 22 punches holes on both sides of the neatly trimmed material plate 4 to form positioning holes. Then, the center hole punching assembly 23, the shaping assembly 24, and the contour cutting assembly 25 sequentially stamp multiple workpieces on the material plate 4 according to the workpiece processing unit positions. The formed workpieces are evenly and neatly arrayed on the material plate 4. Finally, the ejector pins 5 of the ejector assembly 26 press the workpieces downwards onto the packaging tape 3, and the packaging assembly 27 seals and wraps the workpieces. This invention utilizes a staggered arrangement of packaging strips 3 and corresponding top-loading components 26. After the workpieces on one column of the material plate 4 are formed, when they are located below a set of top-loading components 26 along the feeding direction, a portion of the workpieces are pushed down by ejector pins 5 into the packaging strips 3 below for sealing. When they move to the other set of top-loading components 26, the remaining part of the workpieces is also pushed down and sealed. Compared with general stamping and packaging integrated equipment, the two sets of packaging strips 3 are staggered to package the workpieces in the same column, effectively combining the high-efficiency production and processing of continuous stamping equipment. While automating production and packaging, it also ensures the stable processing efficiency of the equipment, which is conducive to achieving high-efficiency production.

[0015] In this embodiment of the utility model, the bottom surface of the ejector pin 5 is provided with a groove 51 corresponding to the upper part of the protrusion 42 for avoidance. By setting the groove 51 for avoidance, the ejector pin 5 does not contact the protrusion 42 when it is pressed down, thus avoiding the force of the ejector pin 5 on the protrusion 42 causing deformation of the protrusion 42. The force point of the ejector pin 5 is at a relatively flat position of the workpiece. When the ejector pin 5 presses down, the workpiece breaks along the pre-cut contour line 43 and separates from the material plate 4 as a whole. Then, the ejector pin 5 pushes it down to the corresponding position on the packaging material strip 3 to wait for packaging. When the ejector pin 5 pushes the workpiece down, on the one hand, it applies force to make the workpiece break at the pre-cut contour line 43, and on the other hand, the protrusion 42 remains relatively embedded in the groove 51 during the process of the workpiece falling. Thus, the falling path of the workpiece and the pressing path of the ejector pin 5 can be kept consistent, thereby avoiding the workpiece falling off-center and affecting the packaging effect.

[0016] In this embodiment of the present invention, two protrusions 42 are symmetrically stamped at the edge of the inner hole 41. The bottom cross-sectional shape of the ejector pin 5 is M-shaped, that is, two grooves 51 are symmetrically provided on the bottom surface of the ejector pin 5. Compared with some embodiments where the two grooves 51 are combined into one large groove 51, this embodiment of the present invention uses two grooves 51, which can contact and apply force to the edge of the protrusions 42 when the ejector pin 5 is pressed down, thereby maximizing the relative limiting of the falling position of the workpiece and reducing the risk of defective products flowing out.

[0017] In this embodiment of the invention, the stamping action between two adjacent workpiece processing units located in the same column is spaced apart by one. That is, the intermediate hole punching component 23, the shaping component 24, and the contour line cutting component 25 are horizontally staggered on the material plate 4. By setting the intermediate hole punching component 23, the shaping component 24, and the contour line cutting component 25 to be staggered during processing, a single workpiece and its adjacent other workpieces are not processed in the same stamping action. This avoids the impact of the punch movement due to the stamping gap being too small, and also avoids the high waste and high cost caused by the stamping gap being too large.

[0018] In this embodiment of the invention, the number of workpiece processing units on any column of the material plate 4 is 6, and correspondingly, each packaging strip 3 only needs to package three workpieces during packaging. Figure 3As shown in the figure, the packaging strip 3 is marked in sky blue. Under the action of the ejector pin 5, three workpieces are pushed onto the packaging strip 3, and the material is staggered. The driving pressure of the packaging strip 3 is effectively dispersed. Along the feeding direction, the corresponding positions of each component on the material plate 4 under a single stamping action are shown. Purple indicates the position of the edge cutting component 21 and the edge hole punching component 22, yellow indicates the position of the center hole punching component 23, green indicates the position of the shaping component 24, magenta indicates the position of the contour line cutting component 25, and red indicates the position of the ejector component 26 (pre-cut contour line 43 breaks). Through staggered stamping, the deformation stress on the material plate 4 is avoided from being too concentrated, which would cause serious tensile deformation at various parts of the material plate 4 and affect the processing quality of the workpiece.

[0019] The above embodiments are merely preferred embodiments of the present utility model and are only used to explain the present utility model, not to limit the present utility model. Any changes, substitutions, combinations, simplifications, modifications, etc., made by those skilled in the art without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A high-efficiency continuous stamping die, comprising an upper die (11) and a lower die (12), characterized in that: The upper mold (11) and lower mold (12) are sequentially provided with a trimming assembly (21), a punching assembly (22), a center hole punching assembly (23), a shaping assembly (24), a contour cutting assembly (25), an ejector assembly (26), and a packaging assembly (27) located below the ejector assembly (26). The packaging assembly (27) includes two parallel and spaced packaging strips (3) that move perpendicularly to the feeding direction of the material plate (4). Several workpieces are longitudinally arranged and processed on the material plate (4). The processing unit has an inner hole (41) punched in the workpiece processing unit of the material plate (4), a protrusion (42) punched at the edge of the inner hole (41), and a pre-cut contour line (43) of the workpiece punched in the workpiece processing unit of the material plate (4). The top material assembly (26) has two sets of top material assembly (26) corresponding to the packaging material belt (3) and they are staggered. The lower end of one set of top material assembly (26) has multiple top pins (5) along the longitudinal direction.

2. The high-efficiency continuous stamping die according to claim 1, characterized in that: The bottom surface of the ejector pin (5) is provided with a groove (51) corresponding to the protrusion (42) for positioning.

3. The high-efficiency continuous stamping die according to claim 2, characterized in that: The protrusion (42) is symmetrically stamped at the edge of the inner hole (41) in two shapes, and the bottom cross-sectional shape of the ejector pin (5) is M-shaped.

4. The high-efficiency continuous stamping die according to claim 1, characterized in that: The stamping action between two adjacent workpiece processing units located in the same column is spaced once.

5. The high-efficiency continuous stamping die according to claim 1, characterized in that: The number of workpiece processing units on any column of the material plate (4) is 6.

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