Movably-closed knife edge structure

Abstract

The utility model discloses a structure capable of movably closing a knife edge. The structure comprises an upper template, a lower template, a sliding block seat, two sliding blocks, a sliding block spring, two inclined pushing punches, a forming punch and two hanging plates, the sliding block seat is installed on the lower die plate, the sliding blocks are connected in sliding grooves of the sliding block seat in a sliding mode, the outer sides of the sliding blocks abut against the lower ends of the inclined pushing punches, the inner ends of the sliding blocks are provided with knife edges, the upper ends of the two inclined pushing punches are fixed to the upper die plate, the sliding block spring is arranged between the two sliding blocks, and the upper end of the forming punch is fixed to the upper die plate. The lower end of the forming punch is opposite to a knife edge on the sliding block, and the lower ends of the two hanging plates are both fixed to the sliding block base. When the die is opened, the two sliding blocks are bounced off in advance under the action of the sliding block springs, and the knife edges on the sliding blocks are separated, so that a large space is provided for blanking of a formed part, a product cannot be scraped and collided with the knife edges on the sliding blocks when pressed in, the problem of chip falling is avoided, the yield is high, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a stamping die, in particular to a movable closed blade structure. Background Art

[0002] Stamping die is a special process equipment that processes materials (metal or non-metal) into parts in cold stamping process. Figure 1 As shown in the figure, an extruded molded part 100 cannot be produced in separate steps because the molded part 100 is too small and has a complex structure. Therefore, it must be produced in one step using a continuous die. The traditional blanking process has the following defects: 1. The blade is as large as the product and is very sharp. When the product enters the blade, it is severely scratched and the edges and corners are severely bumped. 2. Scratches can cause aluminum chips to fall, causing crushing and blocking. 3. Figure 2 As shown, the molded part 100 cannot fall directly. After stamping, the molded part 100 will overlap the die 200, resulting in extrusion deformation and poor dimensional stability. 4. Poor stability, low production efficiency, and frequent production abnormalities. Utility Model Content

[0003] The purpose of the utility model is to provide a movable closed blade structure for preventing products from being scratched.

[0004] To achieve the above objectives, the technical solution of the present invention is:

[0005] The utility model discloses a movable closed blade structure, comprising an upper template, a lower template, a slider seat, two sliders, a slider spring, two oblique push punches, a forming punch, and two hanging plates; the slider seat is installed on the lower template, the middle part of the slider seat is provided with a slide groove, the two sliders are both slidably connected in the slide groove of the slider seat and are arranged opposite to each other, the outer sides of the two sliders respectively abut against the lower ends of the two oblique push punches, the inner end of the slider has a blade, the blades on the two sliders are arranged opposite to each other, the upper ends of the two oblique push punches are fixed on the upper template, the slider spring is arranged between the two sliders, the upper end of the forming punch is fixed on the upper template, the lower end of the forming punch is opposite to the blade on the slider, the lower ends of the two hanging plates are both fixed on the slider seat and are located on both sides of the forming punch for stripping.

[0006] The two sides of the slider are provided with guide blocks, and the guide blocks on both sides of the slider are slidably connected in the guide grooves on both sides of the slider seat sliding groove.

[0007] The top of the hanging plate is provided with a hook extending inwards for hanging the material belt.

[0008] The utility model also includes an upper die base, an upper stripping plate, a lower pad, a lower die base, a large guide assembly, a small guide assembly, and a stripping spring; the upper template is fixed on the upper die base, the upper stripping plate is located below the upper template, the upper stripping plate is connected to the upper template through the small guide assembly, the stripping spring is arranged between the upper die base and the upper stripping plate, the lower template is located below the upper stripping plate, and the lower template, the lower pad, and the lower die base are fixed together in sequence; the lower parts of the oblique push punch and the forming punch can respectively pass through the upper stripping plate and extend toward the slider; the large guide assembly is installed between the upper die base and the lower die base, and the small guide assembly is installed between the upper template and the lower template.

[0009] The upper template includes an upper pad and an upper clamping plate; the upper pad and the upper clamping plate are fixed together.

[0010] After adopting the above scheme, the utility model has the following advantages:

[0011] 1. When the mold is opened, the two sliders are first bounced open by the action of the slider spring, and the blades on the sliders are separated, so that there is a larger space for the molded parts to fall out. When the product is pressed in, it will not be scratched by the blades on the sliders, and there will be no chipping problems. The yield rate is high, the production cost is reduced, and the production efficiency is improved.

[0012] 2. During stamping, the molded parts are cut off normally, and the inserts are separated when the mold is opened, and there will be no overlapping of materials.

[0013] 3. Production is completed in continuous mold, and the overall quality of the product is better and more stable.

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an axonometric view of the molded part;

[0016] Figure 2 It is a schematic diagram of the traditional blanking process;

[0017] Figure 3 It is a longitudinal schematic diagram of the utility model in the mold opening state;

[0018] Figure 4 It is a horizontal schematic diagram of the utility model in the mold opening state;

[0019] Figure 5 It is a longitudinal schematic diagram of the utility model in the closed mold state;

[0020] Figure 6 It is a horizontal schematic diagram of the utility model in the closed mold state;

[0021] Figure 7 This is a schematic diagram of the cooperation between the oblique push punch and the slider in the mold opening state of the utility model;

[0022] Figure 8 This is an axonometric drawing of the cooperation between the oblique push punch and the slider in the mold closing state of the utility model;

[0023] Figure 9 This is a cross-sectional view of the cooperation between the oblique push punch and the slider in the mold closing state of the utility model;

[0024] Figure 10 It is an axonometric drawing of the cooperation between the slider seat and the slider in the mold closing state of the utility model. DETAILED DESCRIPTION

[0025] like Figure 3-Figure 9 As shown, the utility model is a movable closed blade structure, including an upper die base 1, an upper template 2, an upper stripping plate 3, a lower template 4, a lower pad 5, a lower die base 6, a slider base 7, two sliders 8, a slider spring 9, two oblique push punches 10, a forming punch 20, two hanging plates 30, a large guide assembly (not shown in the figure), a small guide assembly (not shown in the figure), and a stripping spring (not shown in the figure).

[0026] The upper template 2 is fixed on the upper mold base 1, the upper stripping plate 3 is located below the upper mold base 2, the upper stripping plate 3 is connected to the upper mold base 2 through a small guide assembly, the stripping spring is arranged between the upper mold base 1 and the upper stripping plate 3, the lower mold base 4 is located below the upper stripping plate 3, the lower mold base 4, the lower pad 5, and the lower mold base 6 are fixed together in sequence, the large guide assembly is installed between the upper mold base 1 and the lower mold base 6, and the small guide assembly is installed between the upper mold base 2 and the lower mold base 4.

[0027] The slider seat 7 is mounted on the lower template 4, and a slide groove 71 is provided in the middle of the slider seat 7. The two sliders 8 are both slidably connected in the slide groove 71 of the slider seat 7 and are arranged opposite to each other. In this embodiment, guide blocks 81 are provided on both sides of the slider 8. The guide blocks 81 on both sides of the slider 8 are slidably connected in the guide grooves 72 on both sides of the slide groove 71 of the slider seat 7 (as shown in FIG. Figure 10 As shown in the figure, the outer sides of the two sliders 8 are respectively against the lower ends of the two oblique push punches 10, and the inner ends of the sliders 8 have a cutting edge 82. The cutting edges 82 on the two sliders 8 are arranged opposite to each other. The slider spring 9 is arranged between the two sliders 8. The upper ends of the oblique push punch 10 and the forming punch 20 are fixed on the upper template 2. The lower parts of the oblique push punch 10 and the forming punch 20 can respectively pass through the upper stripping plate 3 and extend toward the slider 8. The lower end of the forming punch 20 is opposite to the cutting edge 82 on the slider 8. The lower ends of the two hanging plates 30 are fixed on the slider seat 7 and are located on both sides of the forming punch 20. The top of the hanging plate 30 has a hook 301 extending inward for hanging the material belt for stripping.

[0028] The upper template 2 includes an upper pad 21 and an upper clamping plate 22 ; the upper pad 21 and the upper clamping plate 22 are fixed together.

[0029] The working principle of this utility model:

[0030] 1. When the mold is opened, the two sliders 8 are first bounced open by the action of the slider spring 9, and the cutting edges 82 on the sliders 8 are separated, so that there is a larger space for the molded part 100 to fall. When the molded part 100 is pressed in, it will not be scratched by the cutting edges 82 on the sliders 8, and there will be no chipping problem.

[0031] 2. During stamping, the molded part 100 is cut off normally, and the inserts are separated when the mold is opened, and there will be no overlapping of materials.

[0032] The above description is merely a preferred embodiment of the present invention and therefore cannot be used to limit the scope of implementation of the present invention. In other words, equivalent changes and modifications made according to the scope of the patent application and the contents of the specification of the present invention should still fall within the scope of the present invention.

Claims

1. A movable closed blade structure, characterized by: It includes an upper template, a lower template, a slider seat, two sliders, a slider spring, two oblique push punches, a forming punch, and two hanging plates; the slider seat is installed on the lower template, and the middle part of the slider seat has a slide groove. The two sliders are slidably connected in the slide groove of the slider seat and are arranged opposite to each other. The outer sides of the two sliders are respectively against the lower ends of the two oblique push punches, and the inner end of the slider has a cutting edge. The cutting edges on the two sliders are arranged opposite to each other. The upper ends of the two oblique push punches are fixed on the upper template, the slider spring is arranged between the two sliders, the upper end of the forming punch is fixed on the upper template, and the lower end of the forming punch is opposite to the cutting edge on the slider. The lower ends of the two hanging plates are fixed on the slider seat and are located on both sides of the forming punch for stripping.

2. The movable closed blade structure according to claim 1, characterized in that: The two sides of the slider are provided with guide blocks, and the guide blocks on both sides of the slider are slidably connected in the guide grooves on both sides of the slider seat sliding groove.

3. The movable closed blade structure according to claim 1, characterized in that: The top of the hanging plate is provided with a hook extending inwards for hanging the material belt.

4. The movable closed blade structure according to claim 1, characterized in that: It also includes an upper die base, an upper stripping plate, a lower pad, a lower die base, a large guide assembly, a small guide assembly, and a stripping spring; the upper template is fixed on the upper die base, the upper stripping plate is located below the upper template, the upper stripping plate is connected to the upper template through the small guide assembly, the stripping spring is arranged between the upper die base and the upper stripping plate, the lower template is located below the upper stripping plate, and the lower template, the lower pad, and the lower die base are fixed together in sequence; the lower parts of the oblique push punch and the forming punch can respectively pass through the upper stripping plate and extend to the slider; the large guide assembly is installed between the upper die base and the lower die base, and the small guide assembly is installed between the upper template and the lower template.

5. The movable closed blade structure according to claim 1, characterized in that: The upper template includes an upper pad and an upper clamping plate; the upper pad and the upper clamping plate are fixed together.

Images