阅读说明：本技术 一种纸浆模塑产品倒扣的生产工艺 (Production process of pulp molded product inverted buckle ) 是由 肖承贵 于 2019-09-28 设计创作，主要内容包括：本发明的一种纸浆模塑产品倒扣的生产工艺,其通过依次对纸浆湿坯进行成型、热压加工和倒扣制作这样的加工顺序并与本发明的生产工艺相配合使用,使其不但能生产出纸浆模塑产品,其还使采用本发明的生产工艺制作出来的纸浆模塑产品实现具有倒扣的结构；其通过采用纸塑代替吸塑做成包装纸托和使用环保纸浆来代替塑胶,纸浆的使用能循环回收利用,且其使用更加方便,另,采用本发明的生产工艺制作出来的纸浆模塑产品,其整个生产过程无需像吸塑包装的工艺一样需要热熔工序,其不但实现了能简化制作工序,其还避免了污染环境,且纸浆的使用相对于塑胶的成本低,其实现能有效地降低生产成本。(The production process of the pulp molded product back-off of the invention not only can produce the pulp molded product by sequentially carrying out the processing sequence of forming, hot-pressing and back-off manufacturing on a wet pulp blank and matching with the production process of the invention, but also realizes the structure with the back-off of the pulp molded product produced by the production process of the invention; in addition, the whole production process of the paper pulp molding product manufactured by the production process of the invention does not need a hot melting process like the process of blister packaging, thereby not only simplifying the manufacturing process, but also avoiding polluting the environment, and the use of the paper pulp is low compared with the cost of the plastic, and the realization can effectively reduce the production cost.)

1. A production process of a pulp molding product reverse buckle is characterized in that: the production process of the pulp molding product reverse buckle comprises the following steps: step A, a paper pulp wet blank forming procedure: firstly, forming a paper pulp wet blank by adopting a mold, wherein the mold comprises a lower mold, an upper mold arranged on the lower mold and a first downward pressing cylinder arranged on the upper mold, the lower mold is in a vacuum sucker structure, a plurality of vacuum suction holes are designed on the surface of the lower mold, and a stainless steel net covers the upper surface of the lower mold; when the paper pulp wet blank is produced, the lower die utilizes vacuum gas to enable pressure difference generated by a plurality of vacuum suction holes to adsorb the paper pulp wet blank on the paper pulp wet blank, then the upper die is driven by a first downward-pressing cylinder to perform downward-pressing movement, the upward-pressing movement die performs cold extrusion on the paper pulp wet blank, and after the paper pulp wet blank is extruded and formed, the formed paper pulp wet blank is placed into a forming machine; when the upper die and the lower die in the forming machine are driven by the pressurizing cylinders respectively connected with the upper die and the lower die to do die closing movement, most of water in the wet pulp blank can be squeezed out;

step B, hot pressing: the paper pulp wet blank which is finished to be molded and most of moisture is removed is placed in a hot pressing die machine, the hot pressing die machine comprises a lower pressing die and an upper pressing die arranged on the lower pressing die, a heating pipe capable of baking a workpiece arranged below the upper pressing die is arranged in the upper pressing die, a second lower pressing cylinder is also arranged on the upper pressing die, when the upper pressing die in the hot pressing die machine is driven by the second lower pressing cylinder connected with the upper pressing die to downwards perform die closing movement on the lower pressing die, the hot pressing die machine not only can extrude the residual moisture in the paper pulp wet blank with most of moisture removed, but also can dry the paper pulp wet blank, and the paper pulp wet blank becomes paper pulp after being dried and can be discharged;

step C, a back-off process: firstly, a hardware mould capable of punching side holes is manufactured, then, baked paper pulp is placed into the hardware mould, then, the position or position of the paper pulp needing to be reversely buckled is laterally punched through the hardware mould, then, the position or position of the paper pulp needing to be reversely buckled in the hardware mould after the side punching is completed is transversely loose, so that the paper pulp with the reverse buckling position can be easily and quickly taken out from the hardware mould, after the paper pulp is taken out from the hardware mould, the paper pulp at the moment is a paper pulp molding product with a reverse buckling structure, and the reverse buckling structure can effectively clamp a packing material in the reverse buckling structure.

Technical Field

The invention relates to a production process of a pulp molding product back-off.

Background

For a long time, packing carton plastic uptake holds in the palm and all adopts the mode of hot melt to make the back-off and block article, the back-off enables article be difficult to rock and break away from in the packing carton plastic uptake holds in the palm in packing carton plastic uptake, it makes article block in packing carton plastic uptake holds in the palm more firmly, nevertheless because the plastic uptake of packing carton holds in the palm the elasticity, it moves back the mould easily behind the die, and packing carton paper is moulded and is held in the palm and is difficult to move back the mould, make packing carton paper mould and hold in the palm the structure that is difficult to make the back-off, packing carton paper is moulded to hold in the palm and is difficult to make the back-off promptly, finally make packing carton can't realize producing the.

Disclosure of Invention

The invention aims to solve the technical problem of providing a production process for the inverted buckle of a paper pulp molded product, which can produce the paper pulp molded product with the inverted buckle structure by adopting the processing sequence and the processing process of the production process, so as to break the problem that the conventional plastic uptake packing box with the inverted buckle structure can only be produced by plastic uptake materials, but the paper plastic can not be made into the inverted buckle structure due to difficult demoulding, and the use of the paper plastic can be recycled, the use cost is low, compared with the current manufacturing process of the plastic uptake packing box, the hot melting processing is not needed, so that the processing process can be simplified, the environment pollution is avoided, and the manufacture is more convenient and rapid. The invention is realized by the following technical scheme:

a production process of a pulp molded product back-off comprises the following steps: step A, a paper pulp wet blank forming procedure: firstly, a mould is adopted to form a paper pulp wet blank, the mould comprises a lower mould, an upper mould arranged on the lower mould and a first lower pressure cylinder arranged on the upper mould, the lower mould is in a vacuum sucker structure, a plurality of vacuum suction holes are designed on the surface of the lower mould, a stainless steel mesh is laid on the surface of the lower mould, when the paper pulp wet blank is produced, the lower mould utilizes the pressure difference generated by the vacuum suction holes to adsorb the paper pulp wet blank on the lower mould, then, the upper mould performs downward pressing movement under the driving of the first lower pressure cylinder, a condensing pipe is arranged on the lower surface in the upper mould, one side of the condensing pipe is connected with a conveying pipe for conveying condensed fluid, the upper mould which performs downward pressing movement can perform cold extrusion on the paper pulp wet blank, and when the paper pulp wet blank is extruded and formed, the paper pulp wet blank is put into a forming machine, the forming machine is provided with a lower die, an upper die arranged on the lower die and a pressurizing cylinder respectively connected with the upper die and the lower die; the mold and the forming machine are combined for use, so that the wet pulp blank can be automatically formed, and most of water in the wet pulp blank can be squeezed off when an upper mold and a lower mold in the forming machine are driven by pressurizing cylinders respectively connected with the upper mold and the lower mold to perform mold closing movement.

Preferably, step B, the hot pressing step: the wet paper pulp blank which is finished to be formed and most of moisture is removed is put into the hot pressing die machine, the hot pressing die machine comprises a lower pressing die and an upper pressing die arranged on the lower pressing die, a heating pipe capable of baking a workpiece arranged below the upper pressing die is arranged in the upper pressing die, a second lower pressing cylinder is also arranged on the upper pressing die, when the upper pressing die in the hot pressing die machine is driven by the second lower pressing cylinder connected with the upper pressing die to do die closing movement downwards to the lower pressing die, the use and design of the hot pressing die machine not only can extrude the residual moisture in the wet paper pulp blank with most of moisture removed, but also can dry the wet paper pulp blank, and the wet paper pulp blank can be taken out of a die after being baked, so that the working efficiency is high.

Preferably, step C, the back-off process: firstly, hardware moulds with different shapes and specifications and capable of punching side holes are manufactured according to production requirements, then, baked paper pulp is placed into the hardware moulds, then, the positions or positions of the paper pulp needing to be reversely buckled are laterally punched through the hardware moulds, then, the positions or positions of the paper pulp needing to be reversely buckled in the hardware moulds after the lateral punching are transversely loose, so that the paper pulp with the reverse buckling positions can be easily and quickly taken out from the hardware moulds, after the paper pulp is taken out from the hardware moulds, the paper pulp at the moment is a paper pulp moulded product with the reverse buckling structure, and the reverse buckling structure can effectively clamp packing materials in the reverse buckling structure. The production process of the paper pulp molded product reverse buckle realizes that the paper pulp molded product with the reverse buckle structure can be produced only by sequentially carrying out three procedures of paper pulp wet blank forming, hot pressing and reverse buckle manufacturing, and the design of the three procedures can effectively solve the problem that the traditional paper plastic cannot be made into the paper pulp molded product with the reverse buckle structure due to difficult demoulding.

The invention has the beneficial effects that: the invention adopts the processing sequence of forming, hot-pressing processing procedure and back-off procedure to the wet pulp blank and matches with the production process (namely combining the mould, a hot-pressing mould machine, a novel hardware mould and the like) of the invention, so that not only the pulp molded product can be produced, but also the pulp molded product produced by the production process of the invention realizes the structure with back-off; in addition, the whole production process of the paper pulp molding product manufactured by the production process of the invention does not need a hot melting process like the process of plastic uptake packaging, not only can simplify the manufacturing process, but also can avoid environmental pollution, and the use cost of the paper pulp is low compared with the use cost of the plastic cement, and the realization can effectively reduce the production cost.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In this embodiment, the production process of the pulp molded product reverse buckle of the present invention is: step A, a paper pulp wet blank forming procedure: firstly, a mould is adopted to form a paper pulp wet blank, the mould comprises a lower mould, an upper mould arranged on the lower mould and a first lower pressure cylinder arranged on the upper mould, the lower mould is of a vacuum suction cup structure, a plurality of vacuum suction holes are designed on the surface of the lower mould, a stainless steel mesh is laid on the surface of the lower mould, when the paper pulp wet blank is produced, the lower die utilizes vacuum gas to make the pressure difference generated by a plurality of vacuum suction holes adsorb the paper pulp wet blank on the paper pulp wet blank, then the upper die is driven by the first downward-pressing cylinder to perform downward-pressing movement, and the downward-pressing upper die performs cold extrusion on the wet pulp blank, after the wet pulp blank is extruded and formed, the formed wet pulp blank is put into a forming machine, the forming machine is provided with a lower die, an upper die arranged on the lower die and a pressurizing cylinder respectively connected with the upper die and the lower die; when the upper die and the lower die in the forming machine are driven by the pressurizing cylinders respectively connected with the upper die and the lower die to perform die closing movement, most of water in the wet pulp blank can be squeezed out.

In one embodiment, the step B, the hot pressing process: the wet paper pulp blank which is finished to be formed and most of moisture is removed is put into a hot pressing die machine, the hot pressing die machine comprises a lower pressing die and an upper pressing die arranged on the lower pressing die, a heating pipe capable of baking a workpiece arranged below the upper pressing die is arranged in the upper pressing die, a second lower pressing cylinder is also arranged on the upper pressing die, when the upper pressing die in the hot pressing die machine is driven by the second lower pressing cylinder connected with the upper pressing die to downwards perform die closing movement on the lower pressing die, the hot pressing die machine not only can extrude the residual moisture in the wet paper pulp blank with most of moisture removed, but also can dry the wet paper pulp blank, and the wet paper pulp blank can become paper pulp after being dried and can be discharged.

In one embodiment, step C, the back-off process: firstly, a hardware mould capable of punching side holes is manufactured, then, baked paper pulp is placed into the hardware mould, then, the position or position of the paper pulp needing to be reversely buckled is laterally punched through the hardware mould, then, the position or position of the paper pulp needing to be reversely buckled in the hardware mould after the side punching is completed is transversely loose, so that the paper pulp with the reverse buckling position can be easily and quickly taken out from the hardware mould, after the paper pulp is taken out from the hardware mould, the paper pulp at the moment is a paper pulp molding product with a reverse buckling structure, and the reverse buckling structure can effectively clamp a packing material in the reverse buckling structure.

The production process of the paper pulp molded product back-off of the invention not only can produce the paper pulp molded product by matching the processing sequence of molding, hot-pressing processing and back-off manufacturing of the paper pulp wet blank with the production process of the invention (namely combining and using a mold, a hot-pressing mold machine, a novel hardware mold and the like), but also realizes the paper pulp molded product manufactured by the production process of the invention to have the back-off structure; in addition, the whole production process of the paper pulp molding product manufactured by the production process of the invention does not need a hot melting process like the process of blister packaging, the manufacturing process can be simplified, the use cost of the paper pulp is low compared with the use cost of the plastic, and the production cost can be effectively reduced.

The above-mentioned embodiment is only an example of the present invention, and is not intended to limit the scope of the present invention, and all technical solutions that are the same as or equivalent to the contents of the claims of the present invention should be included in the scope of the present invention.