Welding mold, welding device and mold installation method for double-spout transfusion bag

Abstract

The invention discloses a welding device and a welding method for a double-pipe transfusion bag. The welding device includes a welding mold, which is divided into two parts corresponding to the nozzle; the two parts are connected by a locking structure, so that the two parts of the mold run in the same direction during the welding process. The welding device of the double nozzle infusion bag of the present invention divides the welding mold into two parts, and connects the two parts through the locking structure, so as to ensure the parallel movement between each other; the elastic buffer pad is used to reduce the deviation of different nozzles due to material and size And it is difficult to match the impact, thus improving the quality of double nozzle welding. By setting the guide parts, the mold can maintain the correct relative position with the nozzle during the welding process, so as to avoid the deviation of the welding position of the nozzle.

Description

technical field

[0001] The invention relates to a welding mold for a double-spout transfusion bag, a welding device and a mold installation method. Background technique

[0002] The bag body filling infusion product is a new type of flexible packaging infusion product in China. Infusion bags. The core technology of bag-filling infusion bag manufacturing is to weld two nozzles with self-sealing functions and different purposes with non-PVC multi-layer co-extrusion film to form an infusion bag.

[0003] In the production process of the bag body filling type infusion bag, the existing welding mold is to design the welding surfaces of the two spouts on one mold. Since the two nozzles with self-sealing function and different purposes are processed by different molds, the injection molding dimensions and heating melting points of the two nozzles cannot be unified, and the matching welding mold cannot take into account the temperature, time and gap of the two nozzles at the same ...

Examples

Embodiment Construction

[0027] The present invention will be described more fully below using examples. This invention may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein.

[0028] For ease of description, spatially relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature relative to another element or feature shown in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientatio...

technical field

[0001] The invention relates to a welding mold for a double-spout transfusion bag, a welding device and a mold installation method. Background technique

[0002] The bag body filling infusion product is a new type of flexible packaging infusion product in China. Infusion bags. The core technology of bag-filling infusion bag manufacturing is to weld two nozzles with self-sealing functions and different purposes with non-PVC multi-layer co-extrusion film to form an infusion bag.

[0003] In the production process of the bag body filling type infusion bag, the existing welding mold is to design the welding surfaces of the two spouts on one mold. Since the two nozzles with self-sealing function and different purposes are processed by different molds, the injection molding dimensions and heating melting points of the two nozzles cannot be unified, and the matching welding mold cannot take into account the temperature, time and gap of the two nozzles at the same ...

Examples

Embodiment Construction

[0027] The present invention will be described more fully below using examples. This invention may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein.

[0028] For ease of description, spatially relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature relative to another element or feature shown in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientatio...

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