Stable high-speed feeding structure of progressive die
Technical Field
The invention relates to the field of dies, in particular to a stable high-speed feeding structure of a progressive die.
Background
In the quick feeding process of the stamping die, the workpiece material belt is easy to warp and arch due to inertia and force, so that the whole precision of the workpiece material belt is not up to the standard, the produced workpiece edge line and appearance are unstable, the rejection rate is greatly increased, and the production cost of enterprises is also increased.
Disclosure of Invention
The applicant has made research and improvement to the above-mentioned existing problems, and provides a stable high-speed feeding structure of progressive die, which can effectively prevent the arch of the product material belt in the rapid feeding process, and greatly reduce the rejection rate.
The technical scheme adopted by the invention is as follows:
the progressive die stable high-speed feeding structure comprises an upper die mechanism and a lower die mechanism;
the specific structure of the upper die mechanism is as follows:
the nitrogen injection molding machine comprises an upper die holder and a stripper plate, wherein a nitrogen fixing seat is arranged in the upper die holder, a threaded nitrogen spring is arranged on the nitrogen fixing seat, the output end of the threaded nitrogen spring is connected with one end of a bearing fixing seat arranged in the nitrogen fixing seat, the other end of the bearing fixing seat is connected with a through sliding sleeve and the stripper plate, the sliding sleeve is matched with the stripper plate, and one end of the bearing fixing seat extending out of the stripper plate is connected with a bearing through a bolt;
the lower die structure has the following structure: the lower die comprises a lower die lifting plate and a lower die base, wherein a plurality of lower die nitrogen springs and an inner guide sleeve are arranged in the lower die base, the output end of each lower die nitrogen spring is in butt joint with the lower die lifting plate, one end of an inner guide pillar stretches into the inner guide sleeve, and the other end of the inner guide pillar is matched with the lower die lifting plate.
The further technical scheme is as follows:
and a limiting block for compressing the sliding guide sleeve is fixedly connected to the upper surface of the stripping plate.
The beneficial effects of the invention are as follows:
the invention has simple structure and convenient use, the bearing is used for pressing the workpiece material belt to ensure that the workpiece material belt stably advances, and the mechanism occupies small space, thereby not only reducing the rejection rate of products, but also improving the production efficiency of the products.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a side view of fig. 1.
Wherein: 1. an upper die holder; 2. a limiting block; 3. a product material belt; 4. a lower die lifting plate; 5. an inner guide post; 6. an inner guide sleeve; 7. a lower die holder; 8. a lower die nitrogen spring; 9. a threaded nitrogen spring; 10. a nitrogen fixing seat; 11. a sliding guide sleeve; 12. a bearing fixing seat; 13. a stripper plate; 14. a plug pin; 15. and (3) a bearing.
Detailed Description
The following describes specific embodiments of the present invention.
As shown in fig. 1 and 2, the progressive die stable high-speed feeding structure comprises an upper die mechanism and a lower die mechanism;
the specific structure of the upper die mechanism is as follows:
the nitrogen injection molding machine comprises an upper die holder 1 and a stripper plate 13, wherein a nitrogen fixing seat 10 is arranged in the upper die holder 1, a threaded nitrogen spring 9 is arranged on the nitrogen fixing seat 10, the output end of the threaded nitrogen spring 9 is connected with one end of a bearing fixing seat 12 arranged in the nitrogen fixing seat 10, the other end of the bearing fixing seat 12 is connected with a through sliding sleeve 11 and the stripper plate 13, the sliding sleeve 11 is matched with the stripper plate 13, and one end of the bearing fixing seat 12 extending out of the stripper plate 13 is connected with a bearing 15 through a bolt 14; the upper surface of the stripper plate 13 is fixedly connected with a limiting block 2 for pressing the guide sliding sleeve 11.
The lower die structure is as follows:
the lower die nitrogen spring type material lifting device comprises a lower die material lifting plate 4 and a lower die base 7, wherein a plurality of lower die nitrogen springs 8 and an inner guide sleeve 6 are arranged in the lower die base 7, the output end of each lower die nitrogen spring 8 is in butt joint with the lower die material lifting plate 4, one end of an inner guide pillar 5 stretches into the inner guide sleeve 6, and the other end of the inner guide pillar 5 is matched with the lower die material lifting plate 4.
The specific working process of the invention is as follows:
in the first stage, the upper die mechanism and the lower die mechanism are clamped, and in this state, the output end of the threaded nitrogen spring 9 is propped against the bearing fixing seat 12, so that the bearing 15 is always pressed on the workpiece material belt 3. In the second phase, the upper die holder 1 moves upwards, in which state the stripper plate 13, the bearing holder 12 and the nitrogen holder 10 are stationary and the bearings 15 still press the product strip 3. In the third stage, when the upper die holder 1 continues to move upwards, the stripper plate 13 moves upwards under the action of the upper die punch, during the upward movement of the stripper plate 13, the lower die lifting plate 4 moves upwards through the lower die nitrogen spring 8, when the stripper plate 13 is separated from the lower die lifting plate 4, when the stripper plate 13 is separated from the upper dead point of the punch, the separation distance is smaller than the formation of the threaded nitrogen spring 9, and at the moment, the threaded nitrogen spring 9 releases to form and gives a release pressure to the bearing fixing seat 12, so that the bearing fixing seat 12 transmits force to the bearing 15 and always presses the material belt.
The invention has simple structure and convenient use, the bearing is used for pressing the workpiece material belt to ensure that the workpiece material belt stably advances, and the mechanism occupies small space, thereby not only reducing the rejection rate of products, but also improving the production efficiency of the products.
The above description is illustrative of the invention and not limiting, the scope of the invention being defined by the appended claims, which may be modified in any manner without departing from the basic structure of the invention.