阅读说明：本技术 蜂窝芯无余量灌封模具及工艺 (Honeycomb core non-allowance encapsulating mold and process ) 是由 胡德艳 黄杰 陈亮 于 2020-04-27 设计创作，主要内容包括：本发明公开了蜂窝芯无余量灌封模具及工艺,包括灌封模具主体、压杆导锁、压杆压块、连接杆及压杆手柄,本发明利用可移动隔离材料和灌封模具在灌封前约束了具有流动性的灌封材料,一次性将灌封材料填满刮平灌封模具主体,并使压杆完全接触灌封材料,无夹裹空气留存,解决了质量缺陷,使得蜂窝芯芯格填充饱满,内部没有气泡空腔,表面平整吻合需要型面,并且灌封位置、尺寸准确；另外本发明模具可以根据灌封位置尺寸、形状、体积等参数设计,使模具与灌封尺寸同体积,可精确计算出需要的灌封材料用量,节省原材料,在使用上工艺性非好,操作简单、劳动强度低,材料损耗少,环境改善明显。(The invention discloses a honeycomb core zero-allowance encapsulation mould and a process, which comprises an encapsulation mould main body, a pressure bar guide lock, a pressure bar pressing block, a connecting rod and a pressure bar handle, wherein the movable isolation material and the encapsulation mould are used for constraining the encapsulation material with fluidity before encapsulation, the encapsulation material is filled and scraped off the encapsulation mould main body at one time, the pressure bar is enabled to be in complete contact with the encapsulation material, no wrapping air is reserved, the quality defect is solved, the honeycomb core lattice is fully filled, no bubble cavity exists in the honeycomb core lattice, the surface is smooth and inosculated with the required molded surface, and the encapsulation position and the size are accurate; in addition, the die can be designed according to parameters such as the size, the shape, the volume and the like of the encapsulation position, so that the die and the encapsulation size have the same volume, the required encapsulation material consumption can be accurately calculated, raw materials are saved, the manufacturability is not good in use, the operation is simple, the labor intensity is low, the material loss is less, and the environment improvement is obvious.)

1. The honeycomb core zero-allowance encapsulation die is characterized by comprising an encapsulation die main body, a pressure rod guide lock, a pressure rod pressing block, a connecting rod and a pressure rod handle, wherein an encapsulation material cavity corresponding to the shape of the pressure rod pressing block penetrates through the encapsulation die main body, the pressure rod guide lock is sleeved on the upper portion of the encapsulation die main body, a guide channel communicated with the encapsulation material cavity and corresponding to the shape of the pressure rod pressing block is arranged at the top of the pressure rod guide lock, and the connecting rod is connected between the top of the pressure rod pressing block and the pressure rod handle.

2. The honeycomb core no-allowance potting mold of claim 1, wherein the bottom surface of the potting mold body is shaped to correspond to the honeycomb core profile.

3. The honeycomb core zero-allowance potting mold of claim 1, wherein a movable isolation material is further provided between the bottom of the potting mold body and the honeycomb core profile.

4. The honeycomb core zero-allowance potting mold of claim 1, a potting process thereof, comprising the steps of:

(1) placing a movable isolating material on the honeycomb core profile surface of the encapsulation position;

(2) placing a main body of the encapsulating mold on the surface of the movable isolating material;

(3) filling the encapsulating mold main body with encapsulating materials, and leveling the upper surface of the encapsulating materials and the upper edge opening of the encapsulating mold main body;

(4) sleeving a compression bar guide lock on the upper part of the main body of the encapsulating mold;

(5) pressing the handle of the pressure rod to move the pressure rod pressing block downwards along the guide channel of the pressure rod guide lock until the bottom surface of the pressure rod pressing block completely contacts the surface of the encapsulating material, so as to ensure that no air is left;

(6) extracting the isolation material from the bottom of the main body of the encapsulation mold;

(7) pressing a pressure rod handle to press a pressure rod pressing block, and filling the potting material into the honeycomb core lattice;

(8) removing all the molds, and confirming that the surfaces of the honeycomb core encapsulating positions are smooth;

(9) placing an isolation material on the surface of the encapsulating material;

(10) and placing a pressure equalizing block on the surface of the isolation material, wherein the lower surface of the pressure equalizing block is consistent with the surface curve of the honeycomb core.

(11) And placing a sand bag with standard weight on the pressure equalizing block to ensure the stability of the pressure equalizing block.

Technical Field

The invention relates to the technical field of honeycomb core encapsulation, in particular to a honeycomb core zero-allowance encapsulation mold and a honeycomb core zero-allowance encapsulation process.

Background

The honeycomb core is used as the interlayer of the composite material sandwich structure, so that compared with a metal structure, the composite material sandwich structure has the advantages of greatly reduced weight and high specific rigidity, and is widely applied to structures in the aerospace field, particularly secondary stressed structural members with higher bending rigidity requirements. However, due to the unique structural characteristics of the honeycomb, the honeycomb is less capable of bearing concentrated loads, and thus local potting reinforcement is required where attachment inserts are locally required to be installed.

Because the design considers the comprehensive factors of the mechanical strength of the material after the position material is solidified, the tolerance such as continuously changing environmental temperature, humidity and the like, the whole weight and the like, the honeycomb cores of different materials, densities, thicknesses and core grid sizes can be selected, the density of the encapsulation material to be used is higher under the industrial control of large load and harsh environment when the material is used, indexes such as hardness and the like are higher, but due to the characteristic of fluidity after the encapsulation material is mixed, if the honeycomb core grids cannot be filled fully at one time, the inside of the material can be wrapped by air, gas in the solidification is not completely discharged, and air bubbles can be left in the inside and on the surface of the encapsulation material to collapse. Especially, when the bottom of the honeycomb core cell is subjected to potting, the operation is inconvenient from the top, and the flatness after curing is poor.

The local filling and sealing strengthening operation of the honeycomb core is characterized in that large-scale automatic equipment is hardly used due to various types, low batches, relatively small size and changeable profiles, but the traditional operation has some defects from the practice in the industry, for example, a filling position needs to be drawn according to a template, the surfaces of adjacent honeycomb cores are protected from being polluted by stickers, adhesive tapes or similar articles on the periphery of the filling position during the operation, the operation is complicated, time-consuming and material-wasting, even the filling is failed midway, the most important point is that the filling is not ensured to be full, air is not wrapped in the middle of the material completely, the surface quality is 100 percent qualified, the loss is considered in the mixing amount of the filling material, the material is often allocated according to experience, the material is reserved on the surfaces of a container, a tool and the filling periphery, the material utilization; therefore, the no-allowance honeycomb core encapsulating mold and the process need to be researched urgently.

Disclosure of Invention

In order to solve the technical problems, the technical scheme provided by the invention is as follows: the honeycomb core zero-allowance encapsulation die comprises an encapsulation die main body, a pressure rod guide lock, a pressure rod pressing block, a connecting rod and a pressure rod handle, wherein an encapsulation material cavity corresponding to the shape of the pressure rod pressing block penetrates through the encapsulation die main body, the pressure rod guide lock is sleeved on the upper portion of the encapsulation die main body, a guide channel communicated with the encapsulation material cavity and corresponding to the shape of the pressure rod pressing block is arranged at the top of the pressure rod guide lock, and the connecting rod is connected between the top of the pressure rod pressing block and the pressure rod handle.

As an improvement, the bottom surface of the main body of the encapsulating mold is shaped to correspond to the molded surface of the honeycomb core.

As an improvement, a movable isolating material is arranged between the bottom of the main body of the encapsulation mold and the section surface of the honeycomb core.

As an improvement, the encapsulating process comprises the following steps:

(1) placing a movable isolating material on the honeycomb core profile surface of the encapsulation position;

(2) placing a main body of the encapsulating mold on the surface of the movable isolating material;

(3) filling the encapsulating mold main body with encapsulating materials, and leveling the upper surface of the encapsulating materials and the upper edge opening of the encapsulating mold main body;

(4) sleeving a compression bar guide lock on the upper part of the main body of the encapsulating mold;

(5) pressing the handle of the pressure rod to move the pressure rod pressing block downwards along the guide channel of the pressure rod guide lock until the bottom surface of the pressure rod pressing block completely contacts the surface of the encapsulating material, so as to ensure that no air is left;

(6) extracting the isolation material from the bottom of the main body of the encapsulation mold;

(7) pressing a pressure rod handle to press a pressure rod pressing block, and filling the potting material into the honeycomb core lattice;

(8) removing all the molds, and confirming that the surfaces of the honeycomb core encapsulating positions are smooth;

(9) placing an isolation material on the surface of the encapsulating material;

(10) and placing a pressure equalizing block on the surface of the isolation material, wherein the lower surface of the pressure equalizing block is consistent with the surface curve of the honeycomb core.

(11) And placing a sand bag with standard weight on the pressure equalizing block to ensure the stability of the pressure equalizing block.

After adopting the structure, the invention has the following advantages: according to the invention, the movable isolation material and the encapsulation mold are utilized to constrain the flowable encapsulation material before encapsulation, the encapsulation material is filled in and strickles off the main body of the encapsulation mold at one time, the pressure rod is in full contact with the encapsulation material, no wrapping air is left, the quality defect is solved, the honeycomb core lattice is fully filled, no bubble cavity is formed in the honeycomb core lattice, the surface is smooth and matched with the required molded surface, and the encapsulation position and the size are accurate; in addition, the die can be designed according to parameters such as the size, the shape, the volume and the like of the encapsulation position, so that the die and the encapsulation size have the same volume, the required encapsulation material consumption can be accurately calculated, raw materials are saved, the manufacturability is not good in use, the operation is simple, the labor intensity is low, the material loss is less, and the environment is obviously improved; through the design of the filling and sealing mould, the honeycomb core is not required to be protected by stickers every time, the filling and sealing mould is quick and special, the lower surface of the mould is matched with the required honeycomb core profile, the honeycomb core is not physically damaged, and the reinforced surface of the honeycomb core does not need to be polished after curing.

Drawings

Fig. 1 is a schematic structural diagram of a honeycomb core no-allowance potting mold and a potting mold in the process.

Fig. 2 is a schematic structural view of the honeycomb core no-allowance encapsulation mold and the encapsulation mold in the process when the encapsulation mold is used.

As shown in the figure: 1. the sealing die comprises a main body of the sealing die, 2 parts of a pressure rod guide lock, 3 parts of a pressure rod pressing block, 4 parts of a connecting rod, 5 parts of a sealing material cavity, 7 parts of a guide channel, 8 parts of a honeycomb core molded surface, 9 parts of a movable isolating material.

Detailed Description

According to the attached drawing, the honeycomb core allowance-free encapsulation mold comprises an encapsulation mold main body 1, a pressure rod guide lock 2, a pressure rod pressing block 3, a connecting rod 4 and a pressure rod handle 5, an encapsulation material cavity 6 corresponding to the pressure rod pressing block 3 in shape penetrates through the encapsulation mold main body 1, the pressure rod guide lock 2 is connected to the upper portion of the encapsulation mold main body in a sleeved mode, a guide channel 7 communicated with the encapsulation material cavity 6 and corresponding to the pressure rod pressing block 3 in shape is arranged at the top of the pressure rod guide lock 2, and the connecting rod 4 is connected between the top of the pressure rod pressing block 3 and the pressure rod handle 5.

As a preferred embodiment of the present embodiment, the bottom surface of the main body 1 of the potting mold is shaped to correspond to the honeycomb core molding surface 8.

As a preferred embodiment of the present embodiment, a removable isolating material 9 is further disposed between the bottom of the main body 1 of the potting mold and the honeycomb core profile 8.

As a preferred embodiment of this embodiment, the potting process comprises the following steps:

(1) placing a movable isolation material 9 on the honeycomb core molded surface 8 at the encapsulation position;

(2) placing the encapsulation mold main body 1 on the surface of the movable isolation material 9;

(3) filling the encapsulating mold main body 1 with encapsulating materials, and leveling the upper surface of the encapsulating materials and the upper edge opening of the encapsulating mold main body 1;

(4) sleeving a compression bar guide lock 2 on the upper part of the encapsulation mold main body 1;

(5) pressing the pressure rod handle 5 to move the pressure rod pressing block 3 downwards along the guide channel 7 of the pressure rod guide lock 2 until the bottom surface of the pressure rod pressing block 3 completely contacts the surface of the encapsulating material, so as to ensure that no air is reserved;

(6) extracting the isolation material 9 from the bottom of the encapsulation mold body 1;

(7) pressing a pressure rod handle 5 to press a pressure rod pressing block 3, and filling the honeycomb core lattice with the potting material;

(8) removing all the molds, and confirming that the surfaces of the honeycomb core encapsulating positions are smooth;

(9) then placing an isolation material 9 on the surface of the encapsulating material;

(10) and a pressure equalizing block is arranged on the surface 9 of the isolation material, and the lower surface of the pressure equalizing block is consistent with the surface curve of the honeycomb core.

(11) And placing a sand bag with standard weight on the pressure equalizing block to ensure the stability of the pressure equalizing block.

Before encapsulation, the periphery of the encapsulation mold main body and the movable isolation material at the bottom of the mold are used for limiting the flowability of the encapsulation material, before encapsulation (before the isolation material is extracted from the encapsulation material and the mold), an encapsulation pressure rod is directly contacted with the encapsulation material, no air is reserved on a contact interface, and the pressure rod is contacted with the encapsulation material interface to form a vacuum interface; after the isolating material is extracted, the encapsulating material cannot fall off due to the fact that the atmospheric pressure acts on the pressure rod and the bottom of the encapsulating material to be equal; when downward pressure is applied, the pressure rod pushes the potting material to be filled into the honeycomb core grids downward without air entrapment. According to the invention, the movable isolation material and the encapsulation mold are utilized to constrain the flowable encapsulation material before encapsulation, the encapsulation material is filled in the strickling mold main body at one time, the pressure rod is completely contacted with the encapsulation material, no entrapped air is left, the biggest benefit is to solve the quality defect, the honeycomb core lattice is fully filled, no bubble cavity is formed in the honeycomb core lattice, the surface is smooth and matched to require a molded surface, and the encapsulation position and size are accurate.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.