Clamping foot structure of thermal-formed clamping foot cup

Abstract

The invention provides a clamping foot structure of a thermal-formed clamping foot cup. A lower template, a first lower die body, a second lower die body and a lower shear installation plate are sequentially overlaid from bottom to top, a lower shear die is arranged on the inner side of the lower shear installation plate, the upper end and the lower end of a cup die water sleeve are attached to the inner side of the lower shear die and the inner side of the second lower die body correspondingly, a cup die is arranged on the inner side of the cup die water sleeve, a cup die ring is arranged onthe inner side of the lower portion of the cup die, an air sealing copper sleeve is arranged under the cup die and the cup die ring, the air sealing copper sleeve is attached to the inner side of thefirst lower die body, a cup receding rod is arranged under the middle space of the cup die, a bottoming base is arranged on the outer side of the cup receding rod, a gap is formed between the upper portion of the bottoming base and the cup die ring, the lower portion of the bottoming base is provided with a first air suffering face and a second air suffering face, the lower template and the firstlower die body are provided with air channels for air supply to correspond to the first air suffering face and the second air suffering face correspondingly, the two air channels are staggered for airsupply for lifting the bottoming base, and a sealing cover is connected to the bottom of the bottoming base. Different sheet thickness requirements can be met, gaps are prevented from being producedin the foot clamping process, and product quality is improved.

Description

technical field [0001] The invention relates to the technical field of thermoforming molds, in particular to a thermoforming pinch cup angle structure. Background technique [0002] Cups or bowls with pincers can prevent users from being scalded when using hot drinks. At present, the self-cutting molds for making disposable plastic pinched cups / bowls include upper molds and lower molds. During the molding process of the mold, the plastic sheet must first be heated to make the temperature of the plastic sheet reach the molding temperature. After the heated plastic sheet enters the forming area, the thermoforming mold is closed, the sheet is formed, the base is raised at an angle, the upper and lower notches are cut, the upper and lower molds of the mold are opened, and the cup ejector lever is pushed out of the opening. The rationality of the design of the clamping feet is an important factor for the success of a product molding. The existing molds have the following defects...

AI Technical Summary

Problems solved by technology

The rationality of the design of the clamping feet is an important factor for the success of a product molding. The existing molds have the following defects: 1. In the past, the conventional cup mold and the cup mold ring were made as one, because the gap between the clamping feet is based on the thickness of the sheet However, it is often difficult to complete the design in one step

If the gap between the clamping feet is too small, it is difficult to make the base upward to complete the angle. At this time, the base or the cup mold can be modified appropriately to increase the gap; if the gap between the clamping feet is too large, the cup mold or the base needs to be redone. The processing of cup molds and bases is complex, costly and long-term. Redoing not only causes great waste, but also delays production

2. Customers often need to apply different sheet thicknesses for the production of a product, so the fixed clamping foot gap cannot meet the requirements

3. Because the conventional method of the cup mold is to cool the gap, the temperature of the product will drop rapidly after forming. At this time, the clamping feet of the base are often difficult to clamp because the temperature is too low. Finished product quality

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