A continuous stamping die for terminal products

Abstract

The utility model provides a kind of continuous stamping die of terminal product, including the upper die seat and lower die seat connected by first guide pillar;Upper die seat bottom is equipped with first upper die, second upper die and third upper die distributed in order from left to right;Lower die seat is equipped with first lower die, second lower die and third lower die correspondingly;First upper die bottom is connected with first material removal plate assembly and the die head assembly and stretch punch that are arranged in order from left to right and distributed in order from left to right;First lower die is equipped with first material removal ejector pin assembly below corresponding stretch punch;Second upper die bottom is equipped with several narrow punch and distributed left and right;Second lower die upper side is connected with second material removal plate assembly;Second lower die is equipped with second material removal ejector pin assembly in the bottom corresponding narrow punch;Third upper die bottom is connected with third material removal plate assembly and the punch, shaping punch and punch cutting blanking punch that are arranged in order from left to right and distributed in order from left to right;Third lower die is equipped with third material removal ejector pin assembly below corresponding die head;

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a continuous stamping die for terminal products. Background Technology

[0002] Terminal products are formed gradually through multiple stamping processes using a continuous stamping die. This process involves several steps, including cutting, stretching, narrowing, punching, blanking, and unloading. The continuous stamping die contains multiple sets of dies, and the distribution and arrangement of each process within these dies, as well as changes to the overall die structure, all affect the quality of the final product. For example, during production, the relatively long length of the strip within the continuous stamping die causes fluctuations in the strip's length, which in turn affects the accuracy of subsequent processing. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this invention is to provide a continuous stamping die for terminal products to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A continuous stamping die for a terminal product includes an upper die base and a lower die base connected by a first guide post; a first upper die, a second upper die, and a third upper die are installed at the bottom of the upper die base, arranged sequentially from left to right; a first lower die is installed on the lower die base below the first upper die, a second lower die is installed below the second upper die, and a third lower die is installed below the third upper die; a first stripper plate assembly and a punching and cutting head assembly and a drawing punch arranged sequentially from left to right are connected to the bottom of the first upper die; a first stripper plate assembly is provided on the first lower die below the drawing punch. The second upper die has several narrow punches distributed horizontally at its bottom; a second stripper plate assembly is connected above the second lower die; a second stripper pin assembly is also provided at the bottom of the second lower die corresponding to the narrow punches; a third stripper plate assembly and punching punches, shaping punches, and blanking punches distributed from left to right are connected to the bottom of the third upper die; a third stripper pin assembly is provided below the shaping punch on the third lower die; a blunting pin assembly is also provided at the position between the shaping punch and the blanking punch on the third lower die.

[0006] In a further description of the present invention, the first stripper plate assembly, the second stripper plate assembly, and the third stripper plate assembly all include a pull rod, a first spring, and a stripper plate;

[0007] In the first stripper plate assembly and the third stripper plate assembly: the stripper plate is connected to the first upper mold / third upper mold through the second guide post, the head of the pull rod is located on the upper mold base for limiting, the middle part passes through the first upper mold / third upper mold, the tail is fixedly connected to the stripper plate, and the first spring is installed in the first upper mold / third upper mold and its bottom touches the stripper plate;

[0008] In the second stripper plate assembly: the stripper plate is connected to the second upper mold and the second lower mold through the third guide post. The head of the pull rod is located at the bottom of the lower mold base for limiting, the middle part passes through the second lower mold, and the tail is fixedly connected to the stripper plate. The first spring is sleeved on the pull rod and the top touches the stripper plate.

[0009] In a further description of the present invention, the punching head assembly includes a first punching head, a second punching head, and a slitting punch, which are distributed sequentially from left to right.

[0010] Further description of this utility model: the first ejector pin assembly includes a first movable plate, a first guide rod, a second spring, and a first ejector pin; the first movable plate is mounted on the bottom of the lower mold base via two first guide rods; a first washer is mounted on the bottom of the first guide rod; the second spring is sleeved on the first guide rod and its two ends respectively abut against the first washer and the first movable plate; the first ejector pin is fixed to the top of the first movable plate; the structure of the third ejector pin assembly is the same as that of the first ejector pin assembly.

[0011] In a further description of this utility model, four narrowing punches are provided.

[0012] In a further description of this utility model, the second ejector pin assembly is provided in two sets and is arranged left and right; the second ejector pin assembly includes a second movable plate, a second guide rod, a third spring and a second ejector pin; the second movable plate is installed at the bottom of the lower mold base through two second guide rods; a second washer is installed at the bottom of the second guide rod; the third spring is sleeved on the second guide rod and its two ends respectively contact the second washer and the second movable plate; two second ejector pins are provided and are arranged left and right and installed on the top of the second movable plate.

[0013] In a further description of this utility model, a first waste box is placed on the lower mold base below the first lower mold, and a second waste box and a finished product collection box are placed on the left and right sides below the third lower mold.

[0014] In a further description of this utility model, a cutter is installed at the right end of the third upper mold; a material guide box is installed at the right end of the lower mold base.

[0015] The beneficial effects of this utility model are as follows:

[0016] This continuous stamping die uses three sets of dies to process and shape the product. The first set of dies (i.e., the first upper die and the first lower die) is used for punching and preliminary stretching. The second set of dies (i.e., the second upper die and the second lower die) is used for narrowing the hole. The third set of dies (i.e., the third upper die and the third lower die) is used for punching, shaping, blanking, and other finishing processes, realizing the processing and blanking of the terminals. The stripper plates of the first and third dies are integrated on the upper die, while the stripper plate of the second die is integrated on the lower die. The middle part of the pressure plate is integrated into the lower die. During the die opening process, the stripper plate in the second die will detach from the strip first, and the stripper plates of the first and third dies will detach from the strip afterward. The strip is lifted up by the stripper pin assembly. The middle part of the strip is limited by the stripper plate of the second lower die. The strip is conveyed within the second lower die, which can effectively avoid the fluctuation of the strip after the die opens and improve the processing accuracy of the product. Attached Figure Description

[0017] Figure 1 This is a front view of the overall structure of this utility model;

[0018] Figure 2 This is a half-sectional structural diagram of the present invention;

[0019] Figure 3 This is a structural diagram of the first upper mold of this utility model;

[0020] Figure 4 This is a structural diagram of the second lower mold of this utility model;

[0021] Figure 5 This is a structural diagram of the first ejector pin assembly of this utility model;

[0022] Figure 6 This is a structural diagram of the second ejector pin assembly of this utility model. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] like Figure 1-6As shown, a continuous stamping die for a terminal product includes an upper die base 2 and a lower die base 3 connected by a first guide post 1; the upper die base 2 is equipped with a first upper die 4, a second upper die 5, and a third upper die 6 arranged sequentially from left to right at its bottom; the lower die base 3 is equipped with a first lower die 7 below the first upper die 4, a second lower die 8 below the second upper die 5, and a third lower die 9 below the third upper die 6; the bottom of the first upper die 4 is connected to a first stripper plate assembly 41 and a punching and cutting head assembly 42 and a drawing punch 43 arranged sequentially from left to right; The first lower die 7 has a first stripper pin assembly 71 located below the stretching punch 43; the second upper die 5 has several narrowing punches 51 arranged horizontally at its bottom; the second lower die 8 has a second stripper plate assembly 81 connected above it; the second lower die 8 also has a second stripper pin assembly 82 located below the narrowing punches 51; the third upper die 6 has a third stripper plate assembly 61 connected to its bottom, along with punching punches 62, shaping punches 63, and blanking punches 64 arranged sequentially from left to right; the third lower die 9 has a third stripper pin assembly located below the shaping punch. Ejector assembly 91; A blunt ejector assembly 92 is also provided on the third lower die 9 at the position between the shaping punch 63 and the blanking punch 64, for blunting the bottom of the workpiece; This continuous stamping die uses three sets of dies to process and form the product. The first set of dies (i.e., the first upper die 4 and the first lower die 7) is used for punching and preliminary stretching, the second set of dies (i.e., the second upper die 5 and the second lower die 8) is used for narrowing the hole, and the third set of dies (i.e., the third upper die 6 and the third lower die 9) is used for punching, shaping, blunting, blanking and other tail processing to realize the processing and forming of the terminal. In the blanking process, the stripper plates 03 of the first and third molds are integrated on the upper mold, while the stripper plate 03 of the second mold is integrated on the lower mold. The middle pressing part is integrated into the lower mold. During the mold opening process, the stripper plate 03 in the second mold will detach from the strip first, and the stripper plates 03 of the first and third molds will detach from the strip later. The strip is lifted up by the stripping ejector pin assembly. The strip in the middle part is limited by the stripper plate 03 of the second lower mold 8. The strip is conveyed within the second lower mold 8, which can effectively avoid the fluctuation of the strip after mold opening and improve the processing accuracy of the product.

[0025] The first stripping plate assembly 41, the second stripping plate assembly 81, and the third stripping plate assembly 61 all include a pull rod 01, a first spring 02, and a stripping plate 03;

[0026] In the first stripper plate assembly 41 and the third stripper plate assembly 61: the stripper plate 03 is connected to the first upper mold 4 / third upper mold 6 through the second guide post; the head of the pull rod 01 is located on the upper mold base 2 for limiting, the middle part passes through the first upper mold 4 / third upper mold 6, and the tail is fixedly connected to the stripper plate 03; the first spring 02 is installed in the first upper mold 4 / third upper mold 6 and its bottom touches the stripper plate 03; the pull rod 01 limits the lower limit stroke of the stripper plate 03, and the first spring 02 touches the stripper plate 03 and moves downward.

[0027] In the second stripper plate assembly 81: the stripper plate 03 is connected to the second upper mold 5 and the second lower mold 8 through the third guide post 031. The head of the pull rod 01 is located at the bottom of the lower mold base 3 for limiting, the middle part passes through the second lower mold 8, and the tail is fixedly connected to the stripper plate 03. The first spring 02 is sleeved on the pull rod 01 and its top touches the stripper plate 03. The pull rod 01 limits the upper limit stroke of the stripper plate 03. The first spring 02 touches the stripper plate 03 and moves upward.

[0028] The punching head assembly 42 includes a first punching head 421, a second punching head 422, and a slitting punch 423 arranged from left to right. The first punching head 421 and the second punching head 422 together punch out the shape of the product, and the slitting punch 423 slits two adjacent products.

[0029] The first ejector pin assembly 71 includes a first movable plate 711, a first guide rod 712, a second spring 713, and a first ejector pin 714. The first movable plate 711 is installed at the bottom of the lower mold base 3 via two first guide rods 712. A first washer 7121 is installed at the bottom of the first guide rod 712. The second spring 713 is sleeved on the first guide rod 712 and its two ends respectively abut against the first washer 7121 and the first movable plate 711. The first ejector pin 714 is fixed to the top of the first movable plate 711. The structure of the third ejector pin assembly 91 is the same as that of the first ejector pin assembly 71. The second spring 713 abuts against the first movable plate 711 and moves upward, driving the first ejector pin 714 to move upward and eject the strip.

[0030] In this design, four narrowing punches 51 are provided. The outer diameter of the narrowing punches 51 gradually decreases from left to right, and the inner hole is narrowed in four stages.

[0031] Two sets of the second stripping ejector pin assemblies 82 are arranged in a left-right distribution. The second stripping ejector pin assembly 82 includes a second movable plate 821, a second guide rod 822, a third spring 823, and a second ejector pin 824. The second movable plate 821 is installed at the bottom of the lower mold base 3 through two second guide rods 822. A second washer 8221 is installed at the bottom of the second guide rod 822. The third spring 823 is sleeved on the second guide rod 822 and its two ends respectively abut against the second washer 8221 and the second movable plate 821. Two second ejector pins 824 are arranged in a left-right distribution and installed on the top of the second movable plate 821. The third spring 823 abuts against the second movable plate 821 and moves upward, driving the second ejector pins 824 to move upward and eject the material strip. Each set of second stripping ejector pin assemblies 82 has two second ejector pins 824. The two sets of second stripping ejector pin assemblies 82 provide four ejector pins, which are used to eject the material at the positions of the four narrow punches 51.

[0032] A first waste box 10 is placed on the lower die base 3 below the first lower die 7, and a second waste box 20 and a finished product collection box 30 are placed on the left and right sides below the third lower die 9. The first waste box 10 is used to collect the waste material that falls off after the first punching head 421 and the second punching head 422 punch. The second waste box 20 is used to collect the waste material that falls off after the punching head 62 punches. The finished product collection box 30 is used to collect the finished product that falls off after the punching head 64 punches.

[0033] A cutter 40 is installed on the right end of the third upper mold 6; a material guide box 50 is installed on the right end of the lower mold base 3. The cutter 40 cuts the waste material strip, and the cut waste material falls into the material guide box 50 and is sent out.

[0034] The above description does not limit the technical scope of this invention. Any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this invention shall still fall within the scope of the technical solution of this invention.

Claims

1. A continuous stamping die for terminal products, comprising an upper die base and a lower die base connected by a first guide post; characterized in that: The bottom of the upper die base is equipped with a first upper die, a second upper die, and a third upper die, arranged sequentially from left to right. The lower die base has a first lower die installed below the first upper die, a second lower die installed below the second upper die, and a third lower die installed below the third upper die. The bottom of the first upper die is connected to a first stripper plate assembly and a punching and drawing punch assembly arranged sequentially from left to right. The bottom of the first lower die has a first stripper ejector pin assembly located below the drawing punch. The bottom of the second upper die is equipped with... The die is equipped with several narrow punches distributed from left to right; a second stripper plate assembly is connected above the second lower die; a second stripper ejector assembly is also provided on the bottom of the second lower die corresponding to the narrow punches; a third stripper plate assembly and punching punches, shaping punches and blanking punches distributed from left to right are connected to the bottom of the third upper die; a third stripper ejector assembly is provided on the third lower die below the shaping punch; a blunt ejector assembly is also provided on the third lower die at the position between the shaping punch and the blanking punch.

2. The continuous stamping die for terminal products according to claim 1, characterized in that: The first, second, and third stripper plate assemblies each include a pull rod, a first spring, and a stripper plate. In the first and third stripper plate assemblies: the stripper plate is connected to the first upper mold / third upper mold via a second guide post; the head of the pull rod is located on the upper mold base for limiting its position, the middle part passes through the first upper mold / third upper mold, and the tail is fixedly connected to the stripper plate; the first spring is installed inside the first upper mold / third upper mold and its bottom touches the stripper plate. In the second stripper plate assembly: the stripper plate is connected to the second upper mold and the second lower mold via a third guide post; the head of the pull rod is located at the bottom of the lower mold base for limiting its position, the middle part passes through the second lower mold, and its tail is fixedly connected to the stripper plate; the first spring is sleeved on the pull rod and its top touches the stripper plate.

3. The continuous stamping die for terminal products according to claim 1, characterized in that: The punching head assembly includes a first punching head, a second punching head, and a slitting punch, arranged sequentially from left to right.

4. The continuous stamping die for terminal products according to claim 1, characterized in that: The first ejector pin assembly includes a first movable plate, a first guide rod, a second spring, and a first ejector pin; the first movable plate is installed at the bottom of the lower mold base via two first guide rods; a first washer is installed at the bottom of the first guide rod; the second spring is sleeved on the first guide rod and its two ends respectively contact the first washer and the first movable plate; the first ejector pin is fixed to the top of the first movable plate; the structure of the third ejector pin assembly is the same as that of the first ejector pin assembly.

5. The continuous stamping die for terminal products according to claim 1, characterized in that: Four narrowing punches are provided.

6. A continuous stamping die for a terminal product according to claim 5, characterized in that: The second ejector pin assembly is provided in two sets and is arranged left and right; the second ejector pin assembly includes a second movable plate, a second guide rod, a third spring and a second ejector pin; the second movable plate is installed at the bottom of the lower mold base through two second guide rods; a second washer is installed at the bottom of the second guide rod; the third spring is sleeved on the second guide rod and its two ends respectively contact the second washer and the second movable plate; two second ejector pins are provided and are arranged left and right and installed on the top of the second movable plate.

7. The continuous stamping die for terminal products according to claim 1, characterized in that: A first waste box is placed on the lower mold base below the first lower mold, and a second waste box and a finished product collection box are placed on the left and right sides below the third lower mold.

8. The continuous stamping die for terminal products according to claim 1, characterized in that: A cutter is installed at the right end of the third upper mold; a material guide box is installed at the right end of the lower mold base.

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