Tension trimming formwork

Abstract

The invention discloses a farm tool production appliance, in particular to a tensioning trimming die mould. The tensioning trimming die mould comprises an upper pressing plate and a lower bearing table. The lower end of an abutting plate extends out of the upper pressing plate by a distance, and the distance is between one third and one second of the height of the lower bearing table. The inner side surface of the abutting plate is provided with a long strip protuberance in the horizontal direction. The abutting plate is provided with a cutting blade, and the cutting blade is arranged on the connected portion of the against pressing plate and the lower surface of the upper pressing plate. The abutting plate is arranged over an interval between the lower bearing table and an enclosed table of the lower bearing table. The horizontal distance between the inner side surface of the abutting plate and the outer side surface of the lower bearing table is 0.8 times of the thickness of a profile. The height of the protuberance is one third of the thickness of the profile. By the application of the tensioning edge cutting module frame, the defect of unstable product quality caused by decreasing of spring performance in the prior art is overcome, and burr-free cutting on the condition of a spring arranged is achieved.

Description

technical field [0001] The invention relates to an agricultural tool production apparatus, in particular to a tension trimming die. Background technique [0002] Seedling trays, as an important carrier of industrial seedling raising in the planting industry, play a key role in water retention, fertilizer retention and heat preservation of seeds in the seedling raising process. During the processing of seedling trays, the raw materials need to be formed by foaming process. However, the initial forming process is only rough processing, and the corners need to be trimmed before it can be counted as the real processing. [0003] And existing edge trimming operation, disclose a kind of slit smooth aluminum alloy die-casting edge trimming die as Chinese patent CN102527820, comprise upper die, lower die, be located at the guiding structure between upper die, lower die, be located at lower die The product positioning structure and the trimming edge of the upper mold are provided. A...

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN102527820 adopts the method of elastic pressing, and adopts more elastic mechanisms, mainly springs. The elastic properties of these springs gradually decrease during regular use, and the product quality of the entire equipment cannot be guaranteed.

[0005] However, if the spring is not used, the tool and the surface of the profile are in rigid contact, it is difficult to ensure the smoothness of the contact surface of the profile, and it is easy to produce wrinkles on the cutting surface, the so-called burrs

[0006] The prior art has not yet provided a tension trimming die that realizes burr-free cutting without the need for an elastic mechanism

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