Combined type secondary punching blanking die

Abstract

The invention discloses a combined type secondary punching blanking die, which relates to the technical field of chain production, and is characterized in that the combined type secondary punching blanking die comprises an upper die and a lower die, a punching mechanism is arranged in the lower die, and a secondary blanking mechanism is arranged in the upper die; a material belt is located between the upper die and the lower die and sequentially passes through the punching mechanism and the secondary blanking mechanism, the punching mechanism comprises two punching nails, the secondary blanking mechanism comprises two punching nails and a punch, and the two punching nails in the secondary blanking mechanism penetrate through the punch. According to the chain plate punching device, through the arrangement of the structure, the whole chain plate can be punched while secondary punching is carried out, so that the production procedures of the chain plate punching device are reduced, meanwhile, punched finished products are automatically discharged, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of chain production, and more specifically, to a composite secondary punching blanking die. Background Art

[0002] A chain is a flexible part composed of multiple links, mainly used to transmit motion and force. Chains are usually made of metal and can be connected by multiple links to form a continuous ring structure. They play an important role in mechanical transmission and traction, and are often used in cranes, bicycles and other equipment.

[0003] In the prior art, chains are generally produced by die stamping, but the production process involves many repetitive steps and wasteful operations. For example, multiple holes are punched in the material strip to ensure the quality of the chain punching, and then the holes on the material strip are positioned and the chain plates are punched to ensure the accuracy of the chain plates. Furthermore, the punched chain plates need to be removed manually, resulting in low chain production efficiency.

[0004] Therefore, it is necessary to provide a composite secondary punching blanking die to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a composite secondary punching blanking die to solve the problems raised in the above background technology.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A composite secondary punching blanking die comprises an upper die and a lower die, wherein a punching mechanism is arranged in the lower die, and a secondary blanking mechanism is arranged in the upper die. The material strip is located between the upper die and the lower die and passes through the punching mechanism and the secondary blanking mechanism in sequence. The punching mechanism comprises two punch pins, and the secondary blanking mechanism comprises two punch pins and a punch. The two punch pins in the secondary blanking mechanism penetrate the punch.

[0007] The technical solution of the present invention is further configured as follows: a discharge hole is provided on the upper die, a blanking hole is provided on the lower die, the discharge hole is located above the punching mechanism, and the blanking hole is located below the secondary blanking mechanism.

[0008] The technical solution of the present invention is further configured as follows: the upper mold includes an upper mold base, an upper pad, an upper clamping plate and an upper mold plate from top to bottom, and the lower mold includes a lower stripping plate, a lower clamping plate, a lower pad and a lower mold base from top to bottom, and the material strip passes between the upper mold plate and the lower stripping plate.

[0009] The technical solution of the present invention is further configured as follows: the punching mechanism also includes a driver 1 and a positioner 1, the driver 1 is located in the lower clamping plate and connected to the two punching pins in the punching mechanism, the positioner 1 is located in the upper template and corresponds to the driver 1, and the two punching pins in the punching mechanism sequentially penetrate the lower stripping plate, the positioner 1, the upper clamping plate and the upper pad.

[0010] The technical solution of the present invention is further configured as follows: the discharge hole is formed by the upper clamping plate and the upper pad, and the upper clamping plate and the upper pad are jointly provided with a discharge slope connected to the discharge hole and to the outside.

[0011] The technical solution of the present invention is further configured as follows: the secondary punching mechanism also includes a second driver, a third driver and a second positioning member, the second driver is located in the upper clamping plate and is connected to the two punching pins in the secondary punching mechanism, the third driver is located in the upper template and is connected to the punch, the second positioning member is located in the lower clamping plate and corresponds to the third driver, and the punch sequentially passes through the lower stripping plate, the second positioning member, the lower pad and the lower die base.

[0012] The technical solution of the present invention is further configured as follows: the blanking hole is formed by the lower pad and the lower die base, a plurality of support columns are fixedly connected below the lower die base, and a blanking slope is provided on the support columns below the blanking hole.

[0013] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art: Through the setting of the structure, after the punching mechanism completes the punching work on the material strip, the secondary punching mechanism can use its punch pins to punch again to ensure the opening accuracy of the chain plate. At the same time, the punch in the secondary punching mechanism matches the second positioning member, which can enable the punch to punch the complete shape of the chain plate directly from the material strip and complete the blanking collection work along the blanking hole. While reducing the effect of repeated punching, the secondary punching takes into account the positioning effect of the punch and can directly complete the blanking collection, so that the efficiency of chain production is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 The explosion of the present invention Figure 1 ; Figure 3 The explosion of the present invention Figure 2 ; Figure 4 for Figure 3 The enlarged view of point A in the middle; Figure 5 The structure of the present invention is schematically shown Figure 2 ; Figure 6 The structure of the present invention is schematically shown Figure 3 .

[0015] In the figure: 1. Punch pin; 2. Punch; 3. Discharge hole; 4. Blanking hole; 5. Upper die seat; 6. Upper pad; 7. Upper clamp; 8. Upper template; 9. Lower stripper plate; 10. Lower clamp; 11. Lower pad; 12. Lower die seat; 13. Driver 1; 14. Positioner 1; 15. Discharge slope; 16. Driver 2; 17. Driver 3; 18. Positioner 2; 19. Support column; 20. Blanking slope. DETAILED DESCRIPTION

[0016] In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples. The following examples are used to illustrate the present invention but are not used to limit the scope of the present invention. Example

[0017] refer to Figures 1 to 6 As shown, the present invention provides a composite secondary punching blanking die, comprising an upper die and a lower die, wherein a punching mechanism is provided in the lower die, and a secondary blanking mechanism is provided in the upper die, the material strip is located between the upper die and the lower die and passes through the punching mechanism and the secondary blanking mechanism in sequence, the punching mechanism comprises two punching pins 1, the secondary blanking mechanism comprises two punching pins 1 and a punch 2, the two punching pins 1 in the secondary blanking mechanism penetrate the punch 2, a discharge hole 3 is provided on the upper die, and a blanking hole 4 is provided on the lower die, the discharge hole 3 is located above the punching mechanism, and the blanking hole 4 is located below the secondary blanking mechanism.

[0018] refer to Figures 1 to 6As shown, the upper die includes an upper die seat 5, an upper pad 6, an upper clamping plate 7 and an upper template 8 from top to bottom, and the lower die includes a lower stripping plate 9, a lower clamping plate 10, a lower pad 11 and a lower die seat 12 from top to bottom. The material belt passes between the upper template 8 and the lower stripping plate 9. The punching mechanism also includes a driver 13 and a positioner 14. The driver 13 is located in the lower clamping plate 10 and is connected to the two punching pins 1 in the punching mechanism. The positioner 14 is located in the upper template 8 and corresponds to the driver 13. The two punching pins 1 in the punching mechanism pass through the lower stripping plate 9, the positioner 14, the upper clamping plate 7 and the upper pad 6 in sequence, and the discharge hole 3 passes through The upper clamping plate 7 and the upper pad 6 are formed, and the upper clamping plate 7 and the upper pad 6 are jointly provided with a discharge slope 15 which is connected with the discharge hole 3 and connected to the outside. Through the arrangement of the above structure, when the material strip is punched for the first time, the driver 13 in the lower clamping plate 10 can make the two punching pins 1 move toward the positioner 14, so as to complete the punching of the material strip. The waste generated by the punching is discharged from the upper clamping plate 7 and the upper pad 6 along the discharge hole 3, and discharged from the upper mold along the discharge slope 15. This method can automatically discharge the waste while completing the punching, without the need for manual cleaning again, thereby improving the production efficiency of the chain.

[0019] refer to Figures 1 to 6 As shown, the secondary blanking mechanism also includes a second driver 16, a third driver 17 and a second positioning member 18. The second driver 16 is located in the upper clamping plate 7 and is connected to the two punching pins 1 in the secondary blanking mechanism. The third driver 17 is located in the upper template 8 and is connected to the punch 2. The second positioning member 18 is located in the lower clamping plate 10 and corresponds to the third driver 17. The punch 2 passes through the lower stripping plate 9, the second positioning member 18, the lower pad 11 and the lower die seat 12 in sequence. The blanking hole 4 is formed by the lower pad 11 and the lower die seat 12. A plurality of support columns 19 are fixedly connected below the lower die seat 12. The support columns 19 located below the blanking hole 4 A blanking slope 20 is provided on it. Through the arrangement of the above structure, after the material strip completes the initial punching, it runs to the secondary blanking mechanism. At this time, the driver 2 16 drives the two punch pins 1 to punch again along the holes on the surface of the material strip and stay in the holes. At this time, the two punch pins 1 have a guiding effect on the punch 2. When the driver 3 17 drives the punch 2 to move toward the positioning member 2 18, the punch 2 punches the finished chain plate from the material strip along the two punch pins 1, and the punched chain plate falls out from the blanking holes 4 on the lower pad 11 and the lower die seat 12, and is discharged from the lower die along the blanking slope 20 on the support column 19.

[0020] refer to Figures 1 to 6As shown, in summary, through the structural setting, after the two punches 1 in the punching mechanism complete the punching work on the material strip, the secondary punching mechanism can use its punches 1 to punch again to ensure the opening accuracy of the chain plate, and at the same time, the punch 2 in the secondary punching mechanism matches the positioning member 18, which can allow the punch 2 to punch the complete shape of the chain plate directly from the material strip, and complete the blanking collection work along the blanking hole 4 and the blanking slope 20 on the support column 19, thereby reducing the effect of repeated punching and taking into account the positioning effect of the punch 2 during the secondary punching, so that the blanking collection can be completed directly, and the efficiency of chain production is further improved.

[0021] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A composite secondary punching blanking die, comprising an upper die and a lower die, characterized in that: A punching mechanism is provided in the lower die, and a secondary punching mechanism is provided in the upper die. The material strip is located between the upper die and the lower die and passes through the punching mechanism and the secondary punching mechanism in sequence. The punching mechanism comprises two punch pins (1), and the secondary punching mechanism comprises two punch pins (1) and a punch (2). The two punch pins (1) in the secondary punching mechanism penetrate the punch (2).

2. The composite secondary punching blanking die according to claim 1, characterized in that: The upper die is provided with a discharge hole (3), and the lower die is provided with a blanking hole (4); the discharge hole (3) is located above the punching mechanism, and the blanking hole (4) is located below the secondary blanking mechanism.

3. The composite secondary punching blanking die according to claim 2, characterized in that: The upper die comprises, from top to bottom, an upper die seat (5), an upper pad (6), an upper clamping plate (7) and an upper mold plate (8); the lower die comprises, from top to bottom, a lower stripping plate (9), a lower clamping plate (10), a lower pad (11) and a lower die seat (12); the material strip passes between the upper mold plate (8) and the lower stripping plate (9).

4. The composite secondary punching blanking die according to claim 3, characterized in that: The punching mechanism also includes a driver (13) and a positioner (14), wherein the driver (13) is located in the lower clamping plate (10) and is connected to the two punching pins (1) in the punching mechanism, and the positioner (14) is located in the upper template (8) and corresponds to the driver (13), and the two punching pins (1) in the punching mechanism sequentially penetrate the lower stripping plate (9), the positioner (14), the upper clamping plate (7) and the upper pad (6).

5. The composite secondary punching blanking die according to claim 4, characterized in that: The discharge hole (3) is formed by the upper clamping plate (7) and the upper pad (6), and the upper clamping plate (7) and the upper pad (6) are jointly provided with a discharge slope (15) which is connected to the discharge hole (3) and to the outside.

6. The composite secondary punching blanking die according to claim 3, characterized in that: The secondary punching mechanism also includes a second driver (16), a third driver (17) and a second positioning member (18), wherein the second driver (16) is located in the upper clamping plate (7) and is connected to the two punch pins (1) in the secondary punching mechanism, the third driver (17) is located in the upper template (8) and is connected to the punch (2), the second positioning member (18) is located in the lower clamping plate (10) and corresponds to the third driver (17), and the punch (2) sequentially passes through the lower stripping plate (9), the second positioning member (18), the lower pad (11) and the lower die base (12).

7. The composite secondary punching blanking die according to claim 6, characterized in that: The blanking hole (4) is formed by the lower pad (11) and the lower die base (12); a plurality of support columns (19) are fixedly connected below the lower die base (12); and a blanking slope (20) is provided on the support columns (19) below the blanking hole (4).

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