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Molded pulp container cover with clamping tenon, mold for manufacturing container cover and manufacturing method

A technology of pulp molding and mold making, which is applied in the field of pulp molding container lids with tenon and its manufacturing molds and manufacturing, can solve the problems of increasing product cost, incision pulp stubble, stubble unhygienic, etc., to achieve The effect of improving production efficiency, upgrading grades and saving working hours

Active Publication Date: 2014-02-26
江峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This causes waste and increases the cost of the product; and due to the secondary punching, pulp stubble appears in the incision, and the stubble falls into the food, which is very unhygienic

Method used

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  • Molded pulp container cover with clamping tenon, mold for manufacturing container cover and manufacturing method
  • Molded pulp container cover with clamping tenon, mold for manufacturing container cover and manufacturing method
  • Molded pulp container cover with clamping tenon, mold for manufacturing container cover and manufacturing method

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Embodiment Construction

[0032] Such as figure 1 The pulp molded container lid with tenons shown in the present invention includes a lid top 8 in the middle and a lid mouth 9 that is placed outside the lid top and slopes downwards. A protruding tenon 5; the protrusion height of the tenon 5 is 0<h≤1 mm. In addition, the outer side of the cover opening 9 is a smooth surface.

[0033] Usually, forming the above-mentioned container lid requires a concave mold 1 and a male mold 2 to form the concave structure of the container lid. noodle. In addition, an arc-shaped groove 4 is provided in the circumferential direction of the middle part of the tapered surface of the punch 2, and the depth of the arc-shaped groove 4 is 0

[0034] In order to improve the structural strength of the carfalcon, the present invention adopts a closed mold, which are respectively Figure 4-5 as well as Figure 6-8The mold processing method shown.

[0035] in, Figure 6-8 The retaining ring 6 is set on the punch (or ...

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Abstract

The invention discloses a molded pulp container cover with a clamping tenon. The molded pulp container cover comprises a middle cover top and a downward-inclining cover opening (9) externally arranged around the cover top, wherein the middle of the inner side of the cover opening (9) is provided with an inward-protruding clamping tenon (5) in the peripheral direction. The clamping tenon (5) is solid. The protruding height of the clamping tenon is larger than the thickness of a cover opening body for 0<h<=1mm. The invention further provides a mold for manufacturing the container cover. The middle of the side of a male mold is provided with an arc-shaped groove (4) in the peripheral direction, and the depth of the arc-shaped groove is 0<h<=1mm. In the hot-pressing shaping process, the solid clamping tenon is directly manufactured by utilizing an increased gap between the male mold and a female male while wet paper blank hot-pressing shaping. The manufactured molded pulp container cover has the advantages of being low in manufacture cost and high in strength.

Description

technical field [0001] The invention relates to a mold and method for manufacturing pulp molded products, in particular to pulp molded container products with tenons, more specifically, to a mold and method for manufacturing container lid products with tenons. Background technique [0002] The Chinese invention patent "Manufacturing Method of Barb Groove for Plant Fiber Molded Cup Lid" (application number CN200910157668.6) discloses a processing method for a molded cup lid with barb grooves, as can be seen from the attached drawings of the application, The cup lid comprises a lid top in the middle and a lid mouth that is placed outside the lid and slopes downwards around the lid. A barb groove protruding inward is provided on the side of the cover opening in the circumferential direction. [0003] Such as figure 2 and image 3 As shown, the molding process of the pulp molded container cover, the container cover 3 realizes compression molding by closing the upper mold and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21J3/00B65D43/08
Inventor 江峰
Owner 江峰
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