A stamping die for reducing product deformation

Abstract

The present invention provides a stamping die for reducing product deformation, comprising an upper die mechanism and a lower die mechanism, wherein the upper die mechanism is provided with a punch and a positioning plate, wherein the punch corresponds to the edge position of the product; the lower die mechanism is provided with a positioning groove and a punching groove, wherein the punching groove is located at the outside of the positioning groove, and the groove depth of the punching groove is smaller than the groove depth of the positioning groove; the size of the positioning groove matches the size of the product; the blade of the punch corresponds to the punching groove in the vertical direction; the positioning plate and the positioning groove are arranged correspondingly up and down, and the outer size of the positioning plate is smaller than the inner size of the positioning groove; the stamping die for reducing product deformation provided by the present invention can reduce the deformation amount of the product and improve the qualified rate of the product.

Description

Technical Field

[0001] The invention relates to a stamping die, in particular to a stamping die capable of reducing product deformation. Background Art

[0002] When the injection molding tray is used in the production line, it is usually rotated 90 degrees by a robot. If the skirt of the injection molding tray is deformed during production, it will affect the grasping accuracy of the robot and ultimately affect the normal operation of the automatic production line.

[0003] Injection molded discs are usually produced using stamping dies. Due to the structural defects of the stamping dies, after the skirt of the injection molded disc is stamped, deformation is likely to occur at the stamping edge, and the deformation exceeds the normal range, resulting in product scrapping. During the stamping process, although the mold parameters are adjusted or a cold water mold temperature controller is used to improve it, this type of deformation cannot be completely improved, and the defective rate is about 5%. The main reason affecting the deformation of the skirt of the injection molded disc is that after the skirt is punched, especially at the fillet, the stress is released, resulting in varying degrees of warping, making the section after punching wavy, which seriously affects the molding quality and qualified rate of the injection molded disc. Summary of the invention

[0004] In view of this, the present invention provides a stamping die for reducing product deformation, which can reduce the deformation amount of the product and improve the qualified rate of the product.

[0005] The present invention provides a stamping die for reducing product deformation, comprising an upper die mechanism and a lower die mechanism, wherein the upper die mechanism is provided with a punch and a positioning plate, wherein the punch corresponds to the edge position of the product; the lower die mechanism is provided with a positioning groove and a punching groove, wherein the punching groove is located on the outside of the positioning groove, and the groove depth of the punching groove is smaller than the groove depth of the positioning groove; the size of the positioning groove matches the size of the product; the blade of the punch corresponds to the punching groove in the vertical direction; the positioning plate and the positioning groove are arranged correspondingly up and down, and the outer size of the positioning plate is smaller than the inner size of the positioning groove.

[0006] Furthermore, the upper die mechanism includes an upper die base, an upper pad, an upper clamping plate, an upper stop plate and an upper stripping plate which are arranged in sequence from top to bottom. The top of the punch is connected to the upper clamping plate and passes through the upper stop plate and the upper stripping plate in sequence.

[0007] Furthermore, the top of the positioning pressure plate is fixedly connected to the upper release plate.

[0008] Furthermore, the upper die base, the upper pad and the upper clamping plate are all fixedly connected in pairs, the upper stop plate and the upper release plate are fixedly connected, and the upper clamping plate and the upper stop plate are movably connected via an equal height sleeve.

[0009] Furthermore, springs are provided between the upper die seat, the upper pad, the upper clamping plate and the upper stop plate.

[0010] Furthermore, the lower die mechanism comprises a lower supporting plate, a lower pad, a lower die base, a lower pad and a lower template which are sequentially arranged and fixedly connected from bottom to top, and the positioning groove and the punching groove are both arranged on the lower template.

[0011] Furthermore, a ejector rod is provided at the bottom of the positioning groove, and the ejector rod passes through the lower mold plate, the lower pad and the lower mold base.

[0012] Furthermore, the blade angle of the punch is 3-5°.

[0013] Furthermore, the size of the punched groove is 0.8×0.8 mm.

[0014] Furthermore, the distance between the inner edge of the punching groove and the product is 1 mm.

[0015] The present invention provides a stamping die for reducing product deformation, which mainly includes an upper die mechanism and a lower die mechanism. The upper die mechanism is mainly provided with a punch and a positioning plate, and the lower die mechanism is provided with a punching groove and a positioning groove. The positioning plate and the positioning groove are arranged correspondingly up and down for compacting and positioning the product, and the position of the punch is arranged correspondingly to the edge of the product and the punching groove. Specifically, during operation, the product is placed in the positioning groove, and its skirt corresponds to the punching groove. The upper die mechanism descends, and the positioning plate enters the product and continues to descend until the positioning plate enters completely to compact the product. At this time, the punch descends to the skirt of the product for punching, and the blade of the punch falls into the punching groove after punching. Due to the setting of the punching groove, the stress release point during the punching process is changed from the horizontal direction to the vertical direction, which greatly reduces the deformation of the product skirt, reduces the deformation amount of the product, and improves the quality and qualified rate of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0017] Figure 1 A schematic structural diagram of a stamping die for reducing product deformation provided by an embodiment of the present invention;

[0018] Figure 2 It is a top view of the lower template in the present invention;

[0019] Figure 3 It is a schematic diagram of punching of the product in the present invention. DETAILED DESCRIPTION

[0020] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0021] Embodiment 1:

[0022] See also Figure 1 -3, the figure shows a stamping die for reducing product deformation provided by Example 1 of the present invention, which includes an upper die mechanism and a lower die mechanism, the upper die mechanism is provided with a punch 1 and a positioning plate 2, the punch 1 corresponds to the edge position of the product 3; the lower die mechanism is provided with a positioning groove 4 and a punching groove 5, the punching groove 5 is located on the outside of the positioning groove 4, and the groove depth of the punching groove 5 is smaller than the groove depth of the positioning groove 4; the size of the positioning groove 4 matches the size of the product 3; the blade of the punch 1 corresponds to the punching groove 5 in the vertical direction; the positioning plate 2 and the positioning groove 4 are arranged correspondingly up and down, and the outer size of the positioning plate 2 is smaller than the inner size of the positioning groove 5.

[0023] The blade angle of the punch 1 is 3-5°; the size of the punching groove 5 is 0.8×0.8 mm; and the distance between the inner edge of the punching groove 5 and the product is 1 mm.

[0024] The present embodiment provides a stamping die for reducing product deformation, which mainly includes an upper die mechanism and a lower die mechanism. The upper die mechanism is mainly provided with a punch 1 and a positioning plate 2, and the lower die mechanism is provided with a punching groove 4 and a positioning groove 5. The positioning plate 2 and the positioning groove 4 are arranged correspondingly up and down for pressing and positioning the product 3. The position of the punch 1 is arranged correspondingly to the edge of the product 3 and the punching groove 5. Specifically, during operation, the product 3 is placed in the positioning groove 4, and its skirt corresponds to the punching groove 5. The upper die mechanism descends, and the positioning plate 2 enters the product 3 and continues to descend until the positioning plate 2 enters completely to press the product 3. At this time, the punch 1 descends to the skirt of the product 3 for punching. After punching, the blade of the punch 1 just falls into the punching groove 5. Due to the setting of the punching groove 5, the stress release point during the punching process is changed from the horizontal direction to the vertical direction, which greatly reduces the deformation of the product skirt, reduces the deformation amount of the product 3, and improves the quality and qualified rate of the product 3.

[0025] Embodiment 2:

[0026] See also Figure 1, the figure shows a stamping die for reducing product deformation provided by embodiment 2 of the present invention. On the basis of the above embodiment, this embodiment further makes the following improved technical scheme: the upper die mechanism includes an upper die base 61, an upper pad 62, an upper clamping plate 63, an upper stop plate 64 and an upper stripping plate 65 which are arranged in sequence from top to bottom, the top of the punch 1 is connected to the upper clamping plate 63, and the upper stop plate 64 and the upper stripping plate 65 are passed through in sequence; the top of the positioning pressure plate 2 is fixedly connected to the upper stripping plate 65; the upper die base 61, the upper pad 62 and the upper clamping plate 63 are fixedly connected in pairs, the upper stop plate 64 and the upper stripping plate 65 are fixedly connected, and the upper clamping plate 63 and the upper stop plate 64 are movably connected by an equal height sleeve 66; a spring 67 is arranged between the upper die base 61, the upper pad 62, the upper clamping plate 63 and the upper stop plate 64.

[0027] Through the above-mentioned further improvements, this embodiment has the following advantages compared with the prior art: it can improve the positioning effect of the positioning pressure plate 2 while ensuring the stability of the punch 1; in addition, it can realize the movable connection between the upper clamping plate 63 and the upper stop plate 64, the equal height sleeve 66 can ensure the position of the upper stop plate 64 and the upper clamping plate 63, and the setting of the spring 67 can provide buffering, thereby further improving the stamping effect of the stamping die.

[0028] Embodiment three:

[0029] See also Figure 1 -2, the figure shows a stamping die for reducing product deformation provided by embodiment 3 of the present invention. This embodiment further makes the following improved technical solutions on the basis of the above embodiments: the lower die mechanism includes a lower support plate 71, a lower pad 72, a lower die base 73, a lower pad 74 and a lower template 75 which are arranged and fixedly connected in sequence from bottom to top, and the positioning groove 4 and the punching groove 5 are both arranged on the lower template 75; a ejector rod 76 is arranged at the bottom of the positioning groove 4, and the ejector rod 76 passes through the lower template 75, the lower pad 74 and the lower die base 73.

[0030] Through the above further improvements, this embodiment has the following advantages compared with the prior art: the positioning effect and the stamping quality are further improved. At the same time, the setting of the ejector rod 76 enables the product 3 to be quickly ejected upward due to the reset effect of the spring when the upper mold mechanism and the lower mold mechanism are separated, thereby facilitating the removal of the material.

[0031] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A stamping die for reducing product deformation, characterized in that: The invention comprises an upper die mechanism and a lower die mechanism, wherein a punch (1) and a positioning plate (2) are arranged in the upper die mechanism, wherein the punch (1) corresponds to the edge position of the product (3); the lower die mechanism is provided with a positioning groove (4) and a punching groove (5), wherein the punching groove (5) is located outside the positioning groove (4), and the groove depth of the punching groove (5) is smaller than the groove depth of the positioning groove (4); the size of the positioning groove (4) matches the size of the product (3); the blade of the punch (1) corresponds to the punching groove (5) in the vertical direction; the positioning plate (2) and the positioning groove (4) are arranged correspondingly up and down, and the outer size of the positioning plate (2) is smaller than the inner size of the positioning groove (5); The blade angle of the punch (1) is 3-5°; The upper die mechanism comprises an upper die base (61), an upper pad (62), an upper clamping plate (63), an upper stop plate (64) and an upper stripping plate (65) which are arranged in sequence from top to bottom; the top of the punch (1) is connected to the upper clamping plate (63) and penetrates the upper stop plate (64) and the upper stripping plate (65) in sequence; The lower die mechanism comprises a lower supporting plate (71), a lower cushion block (72), a lower die seat (73), a lower cushion plate (74) and a lower die plate (75) which are sequentially arranged and fixedly connected from bottom to top, and the positioning groove (4) and the punching groove (5) are both arranged on the lower die plate (75).

2. A stamping die for reducing product deformation according to claim 1, characterized in that: The top of the positioning pressing plate (2) is fixedly connected to the upper release plate (65).

3. A stamping die for reducing product deformation according to claim 2, characterized in that: The upper die seat (61), the upper pad (62) and the upper clamping plate (63) are all fixedly connected in pairs, the upper stop plate (64) and the upper release plate (65) are fixedly connected, and the upper clamping plate (63) and the upper stop plate (64) are movably connected via an equal height sleeve (66).

4. A stamping die for reducing product deformation according to claim 3, characterized in that: A spring (67) is provided between the upper die seat (61), the upper pad (62), the upper clamping plate (63) and the upper stop plate (64).

5. A stamping die for reducing product deformation according to claim 1, characterized in that: A push rod (76) is provided at the bottom of the positioning groove (4), and the push rod (76) passes through the lower mold plate (75), the lower pad (74) and the lower mold base (73).

6. A stamping die for reducing product deformation according to claim 1, characterized in that: The size of the punched groove (5) is 0.8×0.8 mm.

7. A stamping die for reducing product deformation according to claim 1, characterized in that: The distance between the inner edge of the punching groove (5) and the product is 1 mm.

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