Progressive die with rotary material guide mechanism

Abstract

The utility model relates to the technical field of cold stamping dies, in particular to a progressive die with rotary material guiding mechanisms, which comprises an upper die holder and a lower die holder, a plurality of positioning hole grooves are arranged on two sides of the upper surface of a lower die plate, a plurality of material guiding mechanisms are arranged in the positioning hole grooves, every two positioning hole grooves form a group, and a group of material guiding mechanisms are arranged. Each material guiding mechanism comprises two rotary positioning pins, two rotary sleeves, a pressing plate and two fixing screws, the outer sides of the two rotary positioning pins are sleeved with the rotary sleeves respectively, the pressing plate is arranged at the upper ends of the two rotary sleeves, two through holes are formed in the pressing plate, and the two fixing screws sequentially penetrate through the pressing plate, the rotary sleeves and the rotary positioning pins respectively to be connected with the lower die plate. Compared with the prior art, the problem that feeding is not smooth due to the fact that the thickness of a product to be machined in the progressive die is large is solved, the feeding stability is improved, the die damage risk is reduced, and the product production quality and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of cold stamping die technology, specifically a continuous die with a rotating material guiding mechanism. Background Technology

[0002] A stamping die is a mechanical device used in cold stamping to press sheet metal into parts. The sheet metal to be processed is placed between an upper die and a lower die. When the upper and lower dies press against each other, pressure is applied to the sheet metal being processed. A material guiding mechanism needs to be installed inside the die to ensure the smooth feeding of the strip material during the continuous cutting, punching, and forming process.

[0003] Traditional mold guiding mechanisms have high requirements for material width, thickness, and parallelism. If the material exceeds the tolerance, it will be difficult to feed the material, and it will not be able to move flexibly back and forth. The floating material will be unbalanced and difficult to eject, which will pose a risk of jamming. When feeding, the contact area between the side of the material strip and the guiding mechanism is too large, resulting in excessive friction. This makes it very easy for thick plates to be unable to be fed, resulting in jamming and other phenomena such as uneven feeding. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a continuous die with a rotating material guiding mechanism, including an upper die base and a lower die base. The lower end of the upper die base is provided with an upper pad, the lower end of the upper pad is provided with an upper clamping plate, the lower end of the upper clamping plate is provided with a stop plate, and the lower end of the stop plate is provided with a stripper plate. The upper end of the lower die base is provided with a lower pad, the upper end of the lower pad is provided with a lower template. The lower die base is provided with an ejector mechanism, which passes through the lower die base, the lower pad, and the lower template in sequence. The upper surface of the lower template is provided with several positioning slots on both sides, and several material guiding mechanisms are provided in the several positioning slots. The positioning slots are paired up and a set of material guiding mechanisms is provided. A set of material guiding mechanisms includes two rotating positioning pins, two rotating sleeves, a pressure plate, and two fixing screws. The two rotating positioning pins are each fitted with a rotating sleeve on their outer side, and the upper end of the two rotating sleeves is provided with a pressure plate. The pressure plate has two through holes, and the two fixing screws pass through the pressure plate, the rotating sleeve, the rotating positioning pin, and the lower template in sequence.

[0005] The ejector mechanism includes a stop screw, a spacer spring, and an ejector pin. One end of the stop screw is fixed to the bottom of the lower mold base, the other end of the stop screw is connected to one end of the spacer spring, and the other end of the spacer spring is connected to the ejector pin.

[0006] One end of the ejector mechanism is flush with the bottom of the lower mold base, and the other end of the ejector mechanism is flush with the top of the lower mold plate.

[0007] The lower end of the stripping plate is provided with a groove for accommodating the material guiding mechanism, and the groove and the outer contour of the material guiding mechanism are matched.

[0008] The aforementioned positioning holes and grooves and the aforementioned material guiding mechanisms are symmetrically arranged.

[0009] Compared with the prior art, this utility model solves the problem of poor feeding caused by the thickness of the product to be processed in continuous molds, increases the stability of feeding, avoids safety issues such as parts popping out and injuring people during the feeding process, reduces the risk of mold damage, and improves the quality and efficiency of product production. Attached Figure Description

[0010] Figure 1 A cross-sectional view of a progressive die with a rotary guide mechanism;

[0011] Figure 2 Exploded views of the ejector and guide mechanisms in a progressive die;

[0012] See Figures 1 to 2 1. Upper mold base, 2. Upper backing plate, 3. Upper clamping plate, 4. Stop plate, 5. Stripper plate, 6. Lower mold plate, 7. Lower backing plate, 8. Lower mold base, 9. Fixing screw, 10. Pressure plate, 11. Rotating sleeve, 12. Rotating positioning pin, 13. Ejector pin, 14. Loop spring, 15. Stop screw, 16. Product to be processed. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] like Figures 1 to 2 A progressive die with a rotating material guiding mechanism includes an upper die base 1 and a lower die base 8. The lower end of the upper die base 1 is provided with an upper pad 2, the lower end of the upper pad 2 is provided with an upper clamping plate 3, the lower end of the upper clamping plate 3 is provided with a stop plate 4, and the lower end of the stop plate 4 is provided with a stripper plate 5. The upper end of the lower die base 8 is provided with a lower pad 7, and the upper end of the lower pad 7 is provided with a lower template 6. An ejector mechanism is provided inside the lower die base 8, passing sequentially through the lower die base 8, the lower pad 7, and the lower template 6. The upper surface of the lower template 6 has several positioning holes and slots on both sides. The positioning slots are equipped with several material guiding mechanisms. Each pair of positioning slots is paired with a material guiding mechanism. Each material guiding mechanism includes two rotating positioning pins 12, two rotating sleeves 11, a pressure plate 10, and two fixing screws 9. A rotating sleeve 11 is fitted onto the outer side of each of the two rotating positioning pins 12. A pressure plate 10 is located at the upper end of each of the two rotating sleeves 11. The pressure plate 10 has two through holes. The two fixing screws 9 pass sequentially through the pressure plate 10, the rotating sleeves 11, the rotating positioning pins 12, and the lower template 6. The pressure plate 10 is installed above the rotating positioning pins 12 to prevent material jamming due to the upper mold guide pins during continuous production. This prevents the material strip from being pulled into the upper mold, causing deformation and production failure, or even causing the mold to explode and injure personnel.

[0015] The ejector mechanism includes a stop screw 15, a spacer spring 14, and an ejector pin 13. One end of the stop screw 15 is fixed to the bottom of the lower mold base 8, and the other end of the stop screw 15 is connected to one end of the spacer spring 14. The other end of the spacer spring 14 is connected to the ejector pin 13.

[0016] One end of the ejector mechanism is flush with the bottom of the lower mold base 8, and the other end of the ejector mechanism is flush with the top of the lower mold plate 6.

[0017] The lower end of the stripper plate 5 is provided with a groove for accommodating the material guiding mechanism, and the groove and the outer contour of the material guiding mechanism are matched.

[0018] Several positioning holes and slots and several material guiding mechanisms are symmetrically arranged.

[0019] Loosen the fixing screw 9 of the guide mechanism, and smoothly feed the product 16 to be processed between the two guide mechanisms. Adjust the distance between the product 16 and the rotating positioning pin 12 to the optimal clearance. Move the product 16 back and forth to ensure that the rotating sleeve 11 can rotate smoothly without jamming. Tighten the fixing screw 9. After adjusting the guide mechanism according to different products 16, if there is a tolerance in the material width, push the rotating positioning pin 12 outward; if it is a negative tolerance, push it inward.

[0020] When the product to be processed 16 is fed into the feeding device, it will rotate in the opposite direction of the feeding. The bearing principle makes it more labor-saving and faster. The contact area is a point contact, which will not cause problems such as material strip, deformation, or jamming. It increases the stability of continuous die feeding, achieves the effect of preventing product damage, has low cost, simple structure, and small space occupation, and makes production stable.

Claims

1. A progressive die with a rotating material guiding mechanism, comprising an upper die holder (1) and a lower die holder (8), characterized in that: The upper mold base (1) is provided with an upper pad (2) at its lower end, an upper clamping plate (3) at its lower end, a stop plate (4) at its lower end, and a stripper plate (5) at its lower end. The lower mold base (8) is provided with a lower pad (7) at its upper end, and a lower template (6) at its upper end. The lower mold base (8) is provided with an ejector mechanism that passes through the lower mold base (8), the lower pad (7), and the lower template (6) in sequence. The upper surface of the lower template (6) is provided with several positioning holes and grooves on both sides, and several guides are provided in the several positioning holes and grooves. The mechanism has two sets of positioning holes and slots and a set of guiding mechanisms. The set of guiding mechanisms includes two rotating positioning pins (12), two rotating sleeves (11), a pressure plate (10) and two fixing screws (9). The rotating sleeves (11) are respectively fitted on the outside of the two rotating positioning pins (12). The pressure plate (10) is provided at the upper end of the two rotating sleeves (11). The pressure plate (10) has two through holes. The two fixing screws (9) pass through the pressure plate (10), rotating sleeves (11), rotating positioning pins (12) and lower template (6) in sequence.

2. A progressive die with a rotating material guiding mechanism according to claim 1, characterized in that: The ejector mechanism includes a stop screw (15), a spacer spring (14), and an ejector pin (13). One end of the stop screw (15) is fixed to the bottom of the lower mold base (8), and the other end of the stop screw (15) is connected to one end of the spacer spring (14). The other end of the spacer spring (14) is connected to the ejector pin (13).

3. A continuous die with a rotating material guiding mechanism according to claim 1, characterized in that: One end of the ejector mechanism is level with the bottom of the lower mold base (8), and the other end of the ejector mechanism is level with the top of the lower mold plate (6).

4. A progressive die with a rotating material guiding mechanism according to claim 1, characterized in that: The lower end of the stripping plate (5) is provided with a groove for accommodating the material guiding mechanism, and the groove and the outer contour of the material guiding mechanism are matched.

5. A continuous die with a rotating material guiding mechanism according to claim 1, characterized in that: The aforementioned positioning holes and grooves and the aforementioned material guiding mechanisms are symmetrically arranged.

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