Rapid compaction tool

Abstract

A rapid compaction tool comprises an annular mold, a pressure pad and a vacuum bag film, the pressure pad is fixed to the lower surface of the annular mold, and the vacuum bag film is arranged on the upper surface of the annular mold; during use, the annular mold is pressed on the upper edge of the composite prepreg curing mold and is tightly attached to the upper edge of the composite prepreg curing mold.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite material preparation, and in particular relates to a rapid compacting tool used for composite material prepreg curing and molding. Background Art

[0002] In the process of high-performance composite material molding, after a certain number of prepreg laying operations, the prepreg needs to be compacted to eliminate bubbles and make the prepreg fit tightly. The compaction process is to lay non-porous isolation film, breathable felt and other auxiliary materials on the surface of the prepreg when the prepreg reaches the laying quantity. After the auxiliary materials are laid, the sealing strip is laid in the position other than the mold prepreg laying to make a vacuum bag.

[0003] After compaction, the compacted vacuum bag film is removed. Due to the characteristics of the sealing strip, the sealing strip can only be used once. The vacuum bag film is also damaged due to the damage of the sealing strip. The vacuum bag making operation will take a lot of time, increase labor intensity, and the cost of auxiliary materials is not well controlled, which is difficult to meet the improvement of production efficiency. Utility Model Content

[0004] Purpose of the utility model: The technical problem to be solved by the utility model is to provide a preparation method for rapid compaction of hand lay-up molding, which reduces the operation time of the compaction process under the premise of meeting the process vacuum requirements. At the same time, the compaction auxiliary materials are recycled, the cost waste of auxiliary materials is controlled, the repeated operation steps in the operation process of hand lay-up molding compaction process are solved, the labor intensity is reduced, and the production efficiency is improved.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the utility model designs a rapid compaction tooling, including an annular mold, a pressure pad, and a vacuum bag film. The pressure pad is fixed to the lower surface of the annular mold, and the vacuum bag film is arranged on the upper surface of the annular mold. When in use, the annular mold is pressed onto the upper edge of the composite material prepreg curing mold and fits tightly.

[0006] Furthermore, the outer dimensions of the annular mold are designed corresponding to the size of the rim of the composite material prepreg curing mold, the annular mold has a certain width, and the inner diameter of the annular mold is slightly smaller than the diameter of the rim of the composite material prepreg curing mold.

[0007] Furthermore, the vacuum bag film is arranged on the upper surface of the annular mold through a sealing strip.

[0008] Furthermore, a positioning reference is provided on the annular mold, corresponding to the position of a positioning pin of the composite material prepreg curing mold.

[0009] Furthermore, two quick vacuum nozzles are arranged on the vacuum bag film.

[0010] Furthermore, the two quick vacuum nozzles are located diagonally opposite to each other, one of which is used for vacuuming and the other is used as a pressure detection interface.

[0011] Furthermore, the pressure pad is an Airpad pressure pad.

[0012] Beneficial technical effects: The utility model matches compaction auxiliary materials according to the size of the compaction tooling and recycles them, which reduces the time for laying and cutting auxiliary materials. The use of compaction tooling saves the time for reproducing vacuum bags, reduces the operation time and labor intensity by 70% compared with the past, and significantly improves the efficiency of the compaction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the compacting tooling structure of the utility model.

[0014] Among them, 1-vacuum bag, 2-ring mold, 3-sealing strip, 4-pressure pad. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with implementation cases. The following are only some implementation cases or certain specific implementation forms of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the present invention.

[0016] In order to increase production and speed up the efficiency of composite material hand lay-up and meet the requirements of prepreg laying, the hand lay-up compaction process occurs frequently during the operation, and auxiliary materials, bag making, sealing and other processes are circulated. This is not conducive to further reducing working time and improving production efficiency.

[0017] like Figure 1 As shown, the specific design of the rapid compaction tooling of the utility model is composed of a vacuum bag film 1, an annular mold 2, and an Airpad pressure pad 4; wherein the annular mold and the Airpad pressure pad are vulcanized and formed into one body on the lower surface according to the size of the ring, so as to ensure that the compaction tooling is combined with the composite material prepreg curing mold, and the air tightness meets the requirements. The vacuum bag making operation is performed on the upper surface of the annular mold, and is fixed by a sealing strip 3 to form a complete form of the compaction tooling.

[0018] The specific usage process is as follows:

[0019] Step 1: Lay and compact the auxiliary materials according to the process requirements, and lay them in sequence according to the position order, and the auxiliary materials must meet the overlap requirements.

[0020] Step 2: Two operators place the compaction tooling in place according to the position of the positioning pin, corresponding to the positioning reference of the compaction tooling, and check whether the compaction tooling fits tightly with the mold.

[0021] Step 3: Fix the position of the quick vacuum nozzle, flatten the vacuum bag film, and perform the vacuum operation. The quick vacuum nozzles are located diagonally to each other, consisting of one extraction and one test. When the vacuum bag is close to the mold, test whether the vacuum meets the outline requirements.

[0022] Step 4: After the compaction process is completed, two operators will remove the compaction tooling before proceeding with subsequent operations.

[0023] The compacting tooling provided by the utility model can not only meet the requirements of the process outline on the vacuum degree of the product, but also shorten the operation time of the compacting process and reduce the labor intensity.

[0024] Those skilled in the art will appreciate that, unless otherwise specifically defined, all technical terms used above have the same meaning as the general understanding of ordinary technicians in the field to which the present invention belongs; all the above specific implementation methods and specific cases further illustrate the purpose, technical solutions and beneficial technical effects of the present invention in detail. It should also be understood that the above description is only some specific implementation plans and cases of the present invention, and is not intended to limit the present invention. On the contrary, any other modifications, equivalent substitutions, improvements, etc. made within the design ideas and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rapid compaction tool, characterized in that: It includes an annular mold, a pressure pad, and a vacuum bag film. The pressure pad is fixed to the lower surface of the annular mold, and the vacuum bag film is arranged on the upper surface of the annular mold. When in use, the annular mold is pressed onto the upper edge of the composite material prepreg curing mold and fits tightly.

2. A rapid compaction tool as claimed in claim 1, characterized in that: The outer dimensions of the annular mold are designed according to the size of the composite material prepreg curing mold rim. The annular mold has a certain width, and the inner diameter of the annular mold is slightly smaller than the diameter of the composite material prepreg curing mold rim.

3. A rapid compaction tool as claimed in claim 2, characterized in that: The annular mold is provided with a positioning reference corresponding to the position of the positioning pin of the composite material prepreg curing mold.

4. A rapid compaction tool as claimed in claim 3, characterized in that: The vacuum bag film is arranged on the upper surface of the annular mold through a sealing strip.

5. A rapid compaction tool as claimed in claim 1 or 4, characterized in that: Two quick vacuum nozzles are arranged on the vacuum bag film.

6. A rapid compaction tool as claimed in claim 5, characterized in that: The two quick vacuum nozzles are located diagonally opposite to each other, one of which is used for vacuuming and the other is used as a pressure detection interface.

7. A rapid compaction tool as claimed in claim 1, characterized in that: The pressure pad is an Airpad pressure pad.

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