Structure for movable core-pulling, bending and stripping

Abstract

The utility model discloses a structure for movable core-pulling, bending and stripping, which belongs to the technical field of stamping dies and comprises a lower die plate, a lower backing plate and a lower die holder which are sequentially arranged from top to bottom, a slider is arranged on the lower backing plate, an insert B in sliding fit with the slider is arranged on the right upper side of the slider, a screw is connected to the right side of the slider, and the lower die holder is connected to the right side of the screw. An elastic piece B is arranged on the screw rod in a penetrating mode, a bend is arranged on the upper left portion of the sliding block, a bending base is arranged on the left side of the sliding block, an insert A is arranged above the bending base, the lower end of the bending base is connected with a transmission pin, and an elastic piece C is arranged at the lower end of the transmission pin; according to the structure, the problem that the interior of a product is scratched is solved, the size is stable, the die is not limited by the type of a punching machine any more, and the punching production efficiency is improved by more than 30%.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a structure for movable core pulling, bending and stripping. Background Art

[0002] In stamping mold design, it is often encountered that after the product frame is bent, the bent parts need to be removed from the product and then removed. Usually, the cylinder is used to drive the bending, and the cylinder starts working only after the mold presses the product into place. At this time, the bent parts are easy to scratch the product, and the cylinder structure seriously affects the stamping production efficiency and stability. Summary of the invention

[0003] The purpose of the utility model is to provide a structure for movable core-pulling, bending and stripping to solve the above problems.

[0004] The utility model adopts a slider instead of a cylinder, so that the bending parts move synchronously with the product, thereby solving the problem of the bending parts scratching the product and improving the stamping efficiency and quality stability.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a structure for movable core-pulling, bending and stripping, comprising a lower template, a lower pad and a lower mold base arranged in sequence from top to bottom, a slider is arranged on the lower pad, an insert B slidingly matched with the slider is arranged on the upper right of the slider, a screw rod is connected to the right side of the slider, an elastic part B is passed through the screw rod, a bend is arranged on the upper left of the slider, a bending seat is arranged on the left side of the slider, an insert A is arranged above the bending seat, a transmission pin is connected to the lower end of the bending seat, an elastic part C is arranged at the lower end of the transmission pin, the bend is located above the bending seat and is gap-matched with the bending seat, and an elastic part A is arranged between the bend and the bending seat.

[0006] As a preferred technical solution: the elastic member A, the elastic member B and the elastic member C are all springs.

[0007] As a preferred technical solution, the left end of the elastic member B abuts against the right end of the lower template. Of course, a baffle can also be provided separately.

[0008] Compared with the prior art, the advantages of the utility model are: the structure of the utility model solves the problem of internal scratches on the product, the size is stable, the mold is no longer limited by the type of punch press, and the stamping production efficiency is improved by more than 30%. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a structural state diagram of the embodiment of the utility model before mold closing;

[0010] Figure 2This is a structural state diagram of the embodiment of the utility model after mold closing;

[0011] Figure 3 It is a three-dimensional perspective view of an embodiment of the utility model.

[0012] In the figure: 1. insert A; 2. insert B; 3. slider; 4. bending seat; 5. bending; 6. transmission pin; 7. lower template; 8. lower pad; 9. lower mold base; 10. screw; 11. elastic part A; 12. elastic part B; 13. elastic part C. DETAILED DESCRIPTION

[0013] The utility model will be further described below in conjunction with the accompanying drawings. Example

[0014] See also Figure 1 , a structure for movable core-pulling bending and stripping, comprising a lower template 7, a lower pad 8 and a lower die seat 9 arranged in sequence from top to bottom, a slider 3 is arranged on the lower pad 8, an insert B2 slidably matched with the slider 3 is arranged on the upper right side of the slider 3, a screw rod 10 is connected to the right side of the slider 3, an elastic member B12 is passed through the screw rod 10, a bend 5 is arranged on the upper left side of the slider 3, a bend seat 4 is arranged on the left side of the slider 3, an insert A1 is arranged above the bend seat 4, a transmission pin 6 is connected to the lower end of the bend seat 4, an elastic member C13 is arranged at the lower end of the transmission pin 6, the bend 5 is located above the bend seat 4 and is clearance matched with the bend seat 4, and an elastic member A11 is arranged between the bend 5 and the bend seat 4;

[0015] In this embodiment, the elastic member A11, the elastic member B12 and the elastic member C13 are all springs, and the left end of the elastic member B12 abuts against the right end of the lower template 7;

[0016] In this embodiment, the longitudinal section of the slider 3 is a trapezoid, the left end of the insert B2 is an inclined surface, and the inclined surface slides with the right waist of the trapezoid. The lower right corner of the bend 5 is an inclined surface, and the inclined surface slides with the left waist of the trapezoid.

[0017] Bending seat 4 and bending seat 5 cooperate with intermittent single-side +0.005mm sliding fit,

[0018] The slider 3, the bending seat 4 and the lower template 7 are slidably matched with one side +0.01mm.

[0019] The lower pad 8 and the transmission pin 6 are intermittently slidably matched with one side +0.1mm.

[0020] The lower die base 9 and the elastic part C13 are intermittently slidably matched on one side with +0.2mm, and the M10 screw hole at the bottom is tapped to block the elastic part C13 with a set screw to prevent the elastic part C13 from falling off;

[0021] When the mold is closed downward, Figure 1 As shown, Figure 1 The direction of the middle arrow is the direction of simultaneous movement of the corresponding parts. The screw 10 is pushed to move to the left, compressing the elastic member B12, thereby pushing the slider 3 to move to the left. The insert A1 presses the bending seat 4, and the insert B2 pushes the slider 3, driving the bending seat 4 to move downward, and pushes the bending 5 to move forward and extend into the product. The transmission pin 6 supports the bending seat 4. Figure 2 As shown, when the mold is closed to the bottom dead center, bending work can be carried out;

[0022] During demoulding, under the action of spring force, each part is restored to the state before mold closing; specifically, when the bending process is completed, when the insert B2 and the slider 3 are withdrawn upward, under the action of the elastic member B12, the slider 3 is withdrawn backward, and the transmission pin 6 supports the bending seat 4 to drive the bend 5 to float upward, and withdraws backward under the action of the elastic member A11.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A structure for movable core-pulling, bending and stripping, characterized in that: The invention comprises a lower mold plate (7), a lower pad (8) and a lower mold base (9) which are arranged in sequence from top to bottom, a slider (3) is arranged on the lower pad (8), an insert B (2) which is slidably matched with the slider (3) is arranged on the upper right side of the slider (3), a screw rod (10) is connected to the right side of the slider (3), an elastic member B (12) is passed through the screw rod (10), a bend (5) is arranged on the upper left side of the slider (3), a bend seat (4) is arranged on the left side of the slider (3), an insert A (1) is arranged above the bend seat (4), a transmission pin (6) is connected to the lower end of the bend seat (4), an elastic member C (13) is arranged at the lower end of the transmission pin (6), the bend (5) is located above the bend seat (4) and is clearance matched with the bend seat (4), and an elastic member A (11) is arranged between the bend (5) and the bend seat (4).

2. The structure for movable core-pulling, bending and stripping according to claim 1, characterized in that: The elastic member A (11), the elastic member B (12) and the elastic member C (13) are all springs.

3. The structure for movable core-pulling, bending and stripping according to claim 1 is characterized in that: The left end of the elastic member B (12) abuts against the right end of the lower template (7).

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