A two-way flattening product structure and its flattening process

Abstract

The present invention discloses a two-way flattening product structure and its flattening process, which comprises a pre-cutting station, a bilateral flattening station, an upward piercing station, a fine cutting station and a downward piercing station connected in sequence by a material belt, and the bilateral flattening station comprises a second lower die insert, an ejector, a second stripping insert and a flattening punch, the second lower die insert is provided with an ejector, the upper end of the second lower die insert is provided with a second stripping insert butt joint, the upper end surface of the second lower die insert and the lower end surface of the second stripping insert are provided with a rectangular boss, the rectangular boss is provided with an avoidance groove consistent with the shape of the middle part of the product, and the second stripping insert is inserted with a flattening punch. Through the above-mentioned method, the present invention has a compact structure, stable operation, pre-cutting, flattening, piercing and fine cutting are coordinated, stable production can be achieved, the problem of low strength of the fine punching blade and inability to produce stably is improved, production efficiency is improved, and production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of mold production, and in particular to a two-way flattened product structure and a flattening process thereof. Background Art

[0002] The original production process is: the product is flattened in both directions. The first step is to flatten it with the upper punch; the second step is to flatten it with the lower punch; the third step is to make a contour-based precision cut on the blade. In order to ensure the dimensional accuracy after flattening, precision punching must be done, but the blade parts of precision punching are fragile and cannot be produced stably. The parts are seriously damaged during production, the production cost is high, and the product quality cannot be guaranteed. Because the precision punching parts are fragile, the parts processing is difficult and the parts scrap rate is high, so the parts processing cost is also high. At the same time, when the parts are assembled, the parts are fragile. When the parts are assembled, the assembly master will slightly touch the parts and they will be damaged. At the same time, there will be quality risks caused by human factors. Based on the above defects and deficiencies, it is necessary to improve the existing technology and design a two-way flattening product structure and its flattening process. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide a two-way flattening product structure and a flattening process thereof, which has a compact structure and stable operation. The pre-cutting, flattening, puncturing and precision cutting are coordinated to ensure stable production, thereby improving the previous problem of low strength of the precision punching blade and the inability to produce stably, improving production efficiency and reducing production costs.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a two-way flattening product structure, which includes a pre-cutting station, a double-sided flattening station, an upward piercing station, a fine cutting station and a downward piercing station connected in sequence by a material belt, the pre-cutting station includes a first lower die insert, a first stripping insert and a pre-cutting punch, a material belt is arranged between the first lower die insert and the first stripping insert, a pre-cutting punch is inserted on the first stripping insert, and the pre-cutting punch pre-cuts the product appearance; the double-sided flattening station includes a second lower die insert, an ejector pin, a second stripping insert and a flattening punch, an ejector pin is arranged in the second lower die insert, a second stripping insert is arranged at the upper end of the second lower die insert, a rectangular boss is arranged on the upper end surface of the second lower die insert and the lower end surface of the second stripping insert, an avoidance groove consistent with the shape of the middle part of the product is arranged at the rectangular boss, and a flattening punch is inserted on the second stripping insert.

[0005] Preferably, the upward piercing station includes a third lower die insert, an upper die knife and a piercing punch, the third lower die insert is a sealing platform, an upper die knife is arranged above the third lower die insert, and an avoidance groove consistent with the shape of the middle part of the product is arranged on the rectangular boss at the lower end of the upper die knife, and the piercing punch is installed in the avoidance groove.

[0006] Preferably, the fine-cutting station adopts a fine-cutting punch, and the rest of the structure of the fine-cutting station is the same as that of the pre-cutting station.

[0007] Preferably, the downward puncturing station includes a fifth lower die insert, a fifth stripping insert, a fifth puncturing punch and a lower die punch. The fifth lower die insert and the fifth stripping insert are arranged opposite to each other and the opposite surfaces are provided with a through groove consistent with the shape of the middle part of the product. The fifth puncturing punch is installed in the upper die through groove, and the lower die punch is installed in the lower die through groove.

[0008] A flattening process for a bidirectional flattened product structure, characterized in that it comprises the following steps:

[0009] S1, pre-cutting, placing the material strip between the first lower die insert and the first stripping insert of the pre-cutting station, and the pre-cutting punch moves downward to cut out the product shape;

[0010] S2, double-sided thinning, the material strip is moved to the double-sided flattening station, and the second stripping feeder moves downward to flatten the product on all sides, and the thickness is flattened from the original 0.45mm to 0.125mm. The middle part of the product is avoided by the upper and lower avoidance slots, and the product is in the shape of a symmetrical boss;

[0011] S3, pierce upwards, the material strip continues to move to the upward piercing station, the upper die knife and the piercing punch move downward relatively, and the third lower die insert is pushed to the middle convex platform of the product until it is flush with the thinned parts around it, which is convenient for subsequent fine cutting of the shape;

[0012] S4, fine cutting, the material strip continues to move to the fine cutting station, the fine cutting station moves down to fine cut the product to thin the part, and the blade is profiled for fine cutting;

[0013] S5, puncture downwards, the material strip continues to move to the downward puncturing station, the fifth puncturing punch and the lower die punch press downwards relatively, the lower die punch presses the middle boss part of the product into the lower die through groove, and punctures the flattened parts around to the required size position.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The structure is compact and the operation is stable. The coordination of pre-cutting, flattening, puncturing and precision cutting can ensure stable production. It improves the previous problem of low strength of the precision punching blade and unstable production, improves production efficiency and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a two-way flattened product structure.

[0017] Figure 2 for Figure 1 Section view.

[0018] Figure 3 It is a product strip with a two-way flattened product structure.

[0019] Figure 4 A schematic diagram of the pre-cutting station material strip for a flattening process for a bidirectional flattened product structure.

[0020] Figure 5 The cross-sectional view of a double-sided flattening station product of a flattening process for a double-sided flattening product structure.

[0021] Figure 6 This is a cross-sectional view of a product at an upward puncture station in a flattening process for a bidirectional flattened product structure.

[0022] Figure 7 A schematic diagram of the material strip of the precision cutting station in the flattening process for a bidirectional flattened product structure.

[0023] Figure 8 This is a cross-sectional view of a product at the downward puncture station of a flattening process for a bidirectional flattened product structure. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0025] See also Figures 1 to 8 , the embodiment of the present invention includes:

[0026] A two-way flattened product structure and a flattening process thereof, wherein the two-way flattened product structure comprises a pre-cutting station 1, a two-way flattening station 2, an upward piercing station 3, a fine cutting station 4 and a downward piercing station 5 connected in sequence by a material belt, wherein the pre-cutting station 1 comprises a first lower die insert 11, a first stripping insert 12 and a pre-cutting punch 13, a material belt is arranged between the first lower die insert 11 and the first stripping insert 12, a pre-cutting punch 13 is inserted on the first stripping insert 12, and the pre-cutting punch 13 pre-cuts the product Product appearance diagram; the bilateral flattening station 2 includes a second lower die insert 21, an ejector 22, a second stripper insert 23 and a flattening punch 24, the second lower die insert 21 is provided with an ejector 22, the second lower die insert 21 is butt-jointed with the second stripper insert 23 at the upper end, a rectangular boss is provided on the upper end surface of the second lower die insert 21 and the lower end surface of the second stripper insert 23, an avoidance groove consistent with the shape of the middle part of the product is provided at the rectangular boss, and a flattening punch 24 is inserted on the second stripper insert 23.

[0027] The upward piercing station 3 includes a third lower die insert 31, an upper die knife 32 and a piercing punch 33. The third lower die insert 31 is a sealing platform. An upper die knife 32 is arranged above the third lower die insert 31. An avoidance groove consistent with the shape of the middle part of the product is arranged on the rectangular boss at the lower end of the upper die knife 32, and the piercing punch 33 is installed in the avoidance groove.

[0028] The fine cutting station 4 adopts a fine cutting punch 43 , and the rest of the structure of the fine cutting station 4 is the same as that of the pre-cutting station 1 .

[0029] The downward piercing station 5 includes a fifth lower die insert 51, a fifth stripping insert 52, a fifth piercing punch 53 and a lower die punch 54. The fifth lower die insert 51 and the fifth stripping insert 52 are arranged opposite to each other and the opposite surfaces are provided with a through groove consistent with the shape of the middle part of the product. The fifth piercing punch 53 is installed in the upper die through groove, and the lower die punch 54 is installed in the lower die through groove.

[0030] A flattening process for a bidirectional flattened product structure, characterized in that it comprises the following steps:

[0031] S1, pre-cutting, the material strip is placed between the first lower die insert 11 and the first stripping insert 12 of the pre-cutting station 1, and the pre-cutting punch 13 moves downward to cut out the product shape, such as Figure 4 As shown;

[0032] S2, double-sided thinning, the material strip is moved to the double-sided flattening station 2, and the second stripping insert 23 moves downward to flatten the product on all sides, and the thickness is flattened from the original 0.45mm to 0.125mm. The middle part of the product is avoided by the upper and lower avoidance grooves, and the product is in the shape of a symmetrical boss. The cross section of the product is as follows Figure 5 As shown;

[0033] S3, pierce upward, the material strip continues to move to the upward piercing station 3, the upper die knife 32 and the piercing punch 33 move downward relatively, and the third lower die insert 31 is pushed to the middle of the product until it is flush with the thinned parts around it. The cross section of the product is as follows Figure 6 As shown, it is convenient for subsequent fine cutting of the shape;

[0034] S4, fine cutting, the material strip continues to move to the fine cutting station 4, the fine cutting station 4 moves down to fine cut the product to thin the part of the shape, and the blade is profiled and fine cut, such as Figure 7 As shown;

[0035] S5, puncture downwards, the material strip continues to move to the downward puncturing station 5, the fifth puncturing punch 53 and the lower die punch 54 are pressed downwards relatively, the lower die punch 54 presses the central convex part of the product into the lower die through groove, and punctures the flattened part around to the required size position, the cross section of the product is as follows Figure 8 shown.

[0036] The invention discloses a bidirectional flattening product structure and a flattening process thereof, which have a compact structure and stable operation, and can coordinate pre-cutting, flattening, puncturing and precision cutting to achieve stable production, thereby improving the problem of low strength of the precision punching blade and the inability to achieve stable production, improving production efficiency and reducing production costs.

[0037] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A two-way flattened product structure, characterized in that: The bidirectional flattening product structure includes a pre-cutting station, a bilateral flattening station, an upward piercing station, a fine cutting station and a downward piercing station connected in sequence by a material belt, the pre-cutting station includes a first lower die insert, a first stripping insert and a pre-cutting punch, a material belt is arranged between the first lower die insert and the first stripping insert, a pre-cutting punch is inserted on the first stripping insert, and the pre-cutting punch pre-cuts the product appearance; the bilateral flattening station includes a second lower die insert, an ejector, a second stripping insert and a flattening punch, an ejector is arranged in the second lower die insert, a second stripping insert is arranged at the upper end of the second lower die insert, a rectangular boss is arranged on the upper end surface of the second lower die insert and the lower end surface of the second stripping insert, a avoidance groove consistent with the shape of the middle part of the product is arranged at the rectangular boss, and a flattening punch is inserted on the second stripping insert; The upward piercing station comprises a third lower die insert, an upper die knife and a piercing punch, wherein the third lower die insert is a sealing platform, an upper die knife is arranged above the third lower die insert, an avoidance groove consistent with the shape of the middle part of the product is arranged on the rectangular boss at the lower end of the upper die knife, and the piercing punch is arranged in the avoidance groove; The downward piercing station includes a fifth lower die insert, a fifth stripping insert, a fifth piercing punch and a lower die punch. The fifth lower die insert and the fifth stripping insert are arranged opposite to each other and the opposite surfaces are provided with a through groove consistent with the shape of the middle part of the product. The fifth piercing punch is installed in the upper die through groove, and the lower die punch is installed in the lower die through groove.

2. A two-way flattened product structure according to claim 1, characterized in that: The precision cutting station adopts a precision cutting punch, and the rest of the structure of the precision cutting station is the same as that of the pre-cutting station.

3. A flattening process using a bidirectional flattened product structure as claimed in claim 1, characterized in that: The following steps are involved: S1, pre-cutting, placing the material strip between the first lower die insert and the first stripping insert of the pre-cutting station, and the pre-cutting punch moves downward to cut out the product shape; S2, double-sided thinning, the material strip is moved to the double-sided flattening station, and the second stripping feeder moves downward to flatten the product on all sides, and the thickness is flattened from the original 0.45mm to 0.125mm. The middle part of the product is avoided by the upper and lower avoidance slots, and the product is in the shape of a symmetrical boss; S3, pierce upwards, the material strip continues to move to the upward piercing station, the upper die knife and the piercing punch move downward relatively, and the third lower die insert is pushed to the middle convex platform of the product until it is flush with the thinned parts around it; S4, fine cutting, the material strip continues to move to the fine cutting station, the fine cutting station moves down to fine cut the product to thin the part, and the blade is profiled for fine cutting; S5, puncture downwards, the material strip continues to move to the downward puncturing station, the fifth puncturing punch and the lower die punch press downwards relatively, the lower die punch presses the middle boss part of the product into the lower die through groove, and punctures the flattened parts around to the required size position.

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