CN107253333A - A kind of simple composite material low pressure shaped device - Google Patents

Abstract

A simple composite material low-pressure molding device includes a transmission mechanism, a support mechanism, a pressing plate device, a spring component and a mould. The supporting mechanism includes an outer supporting shell, a column and a base; the transmission mechanism is a screw nut mechanism, and the nut is installed on the outer supporting shell of the supporting mechanism through a threaded connection; the mold is fixedly installed in the middle of the base of the supporting system through a threaded connection; four The two springs are respectively sleeved on the four columns of the support mechanism; the pressing plate device is sleeved on the columns through the four round holes on the upper pressing plate, and the lower part is supported by the sleeved springs. The downward rotation of the lead screw nut drives the pressing plate device to move downward, so that the composite material in the mold is compressed by the downward pressure of the lower pressing plate to achieve the purpose of compression molding. A pressure sensor is also introduced, and the pressure exerted by the pressure plate on the material can be visually seen during the process of pressing the lower plate in contact with the material. The invention has the advantages of simple structure, easy manipulation, relatively high degree of automation and the like.

Description

A Simple Composite Material Low Pressure Forming Device

technical field

The invention belongs to the technical field of mold forming, and in particular relates to a simple composite material low-pressure forming device.

Background technique

At present, the molding of some composite materials is mainly carried out by some large-scale molding devices to achieve the molding of composite materials. These devices are large in size and the cost of preparing composite materials is relatively high. It is simple and requires low molding pressure, so using a large molding device to process molding at this time not only costs high and wastes resources, but also takes up space for the device itself, and the equipment investment and maintenance costs are also large. At the same time, during the molding process , these devices are not conducive to monitoring the pressure inside the mold, and cannot intuitively control the downforce. In general, these devices are costly, occupy space, and have certain requirements on the space of the laboratory, so they are not suitable for forming simple low-pressure molds in the laboratory.

Contents of the invention

Aiming at the deficiencies in the prior art, the present invention provides a simple composite material low-pressure molding device.

To achieve the above object, the present invention adopts the following technical solutions:

A simple low-pressure forming device for composite materials, characterized in that it includes: a transmission mechanism, a support mechanism, a platen device, a spring member and a mould, and the transmission mechanism, the platen device, the spring member and the mold are all installed on the support mechanism, and the transmission mechanism It is fixedly connected with the platen device, the spring member supports the platen device, and the transmission mechanism can push the platen device to overcome the force of the spring member and carry out extrusion movement towards the mold.

In order to optimize the above technical solutions, the specific measures taken also include:

The transmission mechanism includes a hand wheel, a lead screw and a nut, the support mechanism includes an outer support shell, a support shell base, a column and a general base, and the pressing plate device includes an upper pressing plate, a lower pressing plate and a pressing plate connecting column, the The spring member includes a spring, and the mold includes a mold wall and a mold base.

The outer supporting shell is square, and the bottom of the outer supporting shell is fixed with a supporting shell base, and the supporting shell base is fixed on the general base by screws, and the number of the columns is four, which are uniformly fixed on the On the general base, the column is located in the outer support shell; the number of the springs is four, which are respectively set on the four columns; the hand wheel is installed at the top joint of the screw, and the nut is compatible with the screw , the nut is installed in the center of the top surface of the outer support shell through bolts, the lead screw passes through the nut and the bottom extends into the outer support shell; the pressure plate device is installed under the lead screw, and the upper pressure plate and the lower pressure plate are welded through the pressure plate connecting column One piece, the upper pressing plate is rectangular, and the four corners are provided with circular through holes suitable for the columns, the four corners of the upper pressing plate are set on the four columns, and the spring is supported on the bottom of the upper pressing plate; the mold base is located at the bottom of the mold, The mold base is fixed on the general base by screws, so that the top opening of the mold faces the lower platen.

The number of bolts is four, the number of screws for fixing the base of the supporting shell is six, and the number of screws for fixing the base of the mold is four.

A pressure sensor position hole is provided at the bottom of the lower platen, and the pressure sensor position hole is used for placing the pressure sensor.

A display housing is welded and mounted on the bottom of the upper platen, and the display housing is used for placing a display connected with a pressure sensor.

The mold is located at the center of the four columns.

The beneficial effects of the invention are: simple structure, easy operation, high efficiency, small occupied space, relatively intelligent, and low manufacturing cost.

Description of drawings

Fig. 1 is the front view of the simple composite material low-pressure molding device of the present invention.

Fig. 2 is a three-dimensional structural schematic diagram of a simple composite material low-pressure molding device of the present invention.

Fig. 3 is a schematic diagram of the structure inside the outer support shell of the present invention.

Fig. 4 is a side view of the platen device of the present invention.

Fig. 5 is a top view of the platen device of the present invention.

Fig. 6 is a perspective view of the transmission mechanism of the present invention.

The reference signs are as follows: I-transmission mechanism, II-support mechanism, III-press plate device, IV-spring member, V-die, 1-handwheel, 2-screw, 3-bolt, 4-nut, 5-outer Support shell, 6-spring, 7-screw, 8-mould base, 9-screw, 10-support shell base, 11-upper platen, 12-column, 13-display shell, 14-platen connecting column, 15 -lower platen, 16-mold wall, 17-general base, 18-position hole for pressure sensor.

detailed description

The present invention is described in further detail now in conjunction with accompanying drawing.

The simple composite material low-pressure molding device shown in Figure 2 includes a transmission mechanism I, a support mechanism II, a platen device III, a spring member IV and a mold V, and the transmission mechanism I, the platen device III, the spring member IV and the mold V are all installed on On the support mechanism II, the transmission mechanism I is fixedly connected with the platen device III, the spring member IV supports the platen device III, and the transmission mechanism I can push the platen device III to overcome the force of the spring member IV and carry out extrusion movement towards the mold V direction .

Referring to Figures 1 and 3 for specific structures, the transmission mechanism I includes a hand wheel 1, a lead screw 2 and a nut 4, the support mechanism II includes an outer support shell 5, a support shell base 10, a column 12 and a general base 17, and the platen device III includes Upper platen 11 , lower platen 15 , platen connecting column 14 , display case 13 and pressure sensor position hole 18 , spring member IV includes spring 6 , mold V includes mold wall 16 and mold base 8 .

The outer support shell 5 is square, and the bottom of the outer support shell 5 is fixed with a support shell base 10 , and the support shell base 10 is fixedly installed on the general base 17 by six screws 9 . The number of upright columns 12 is four, which are evenly fixed on the general base 17 by welding, and the upright columns 12 are located in the outer supporting shell 5 . The number of springs 6 is four, which are sleeved on four columns 12 respectively.

Referring to Figure 6, the handwheel 1 is installed at the top joint of the lead screw 2, the nut 4 is adapted to the lead screw 2, and is installed at the center of the top surface of the outer support shell 5 through four bolts 3, and the lead screw 2 passes through the nut 4 and the bottom protrudes into the outer support shell 5 .

The pressure plate device III is installed under the lead screw 2 as a whole, as shown in Figure 4-5, the upper pressure plate 11 and the lower pressure plate 15 are welded together through the pressure plate connecting column 14, the upper pressure plate 11 is rectangular, and its area is larger than that of the lower pressure plate 15, and the upper pressure plate 11 has protruding four sides relative to the lower pressing plate 15, and the four corners of the upper pressing plate 11 are provided with circular through holes suitable for the uprights 12, and the four corners of the upper pressing plate 11 are set on the four uprights 12. 12 Slide up and down, the spring 6 is supported on the bottom of the upper pressing plate 11. The bottom of the lower platen 15 is provided with a pressure sensor position hole 18, and the pressure sensor position hole 18 is used for placing the pressure sensor. The bottom of the upper platen 15 is welded with a display case 13, and the display case 13 is used to place a display connected to the pressure sensor.

The mold V is located in the middle of the general base 17, that is, in the center of the four columns 12, and the entire mold V can be obtained by casting. Mold base 8 is positioned at mold V bottom, is fixed on the total base 17 by four screws 7, and the top opening of mold V is facing lower platen 15.

When using this simple composite material low-pressure molding device to prepare carbon fiber composite materials, the steps are as follows:

1. First, put the carbon fiber composite material prepreg prepared in advance into the mold V, and then fix the whole mold V on the general base 17 through screws 7;

2. By manually rotating the hand wheel 1, the lead screw 2 moves downward, and during the downward movement of the lead screw 2, it contacts the upper pressing plate 11, so that the pressing plate mechanism III moves downward against the spring reaction force;

3. During the downward movement of the pressing plate, the lower pressing plate 15 is in contact with the carbon fiber composite material prepreg in the mold V, and then compresses and molds the material;

4. At the same time, the pressure sensor installed in the position hole 18 of the lower platen sensor can measure the contact pressure between the lower platen 15 and the material when it is in contact with the material. Through the display in the display case 13, the pressure can be visually observed. , and then control the rotation of the lead screw 2 to control the pressure between the platen and the material;

5. When the press forming is completed, the rotating screw 2 moves upwards, and at this time, the pressing plate mechanism III automatically moves upwards under the action of the spring force, thereby separating from the mold V;

6. Finally, the mold V is removed, and the composite material in the mold V is cured again.

The invention has the advantages of simple structure, ingenious design, convenient disassembly and easy manipulation, and can process molds of different shapes by replacing matching molds and pressure plates. The pressure sensor introduced is conducive to improving the intelligence level of the device, and at the same time, it is easy to control the pressure inside the mold , The combination of the lead screw nut and the spring improves its degree of automation.

It should be noted that terms such as "upper", "lower", "left", "right", "front", and "rear" quoted in the invention are only for clarity of description, not for Limiting the practicable scope of the present invention, and the change or adjustment of the relative relationship shall also be regarded as the practicable scope of the present invention without substantive changes in the technical content.

The above are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims (7)

1. A simple composite material low-pressure molding device, characterized in that it includes: a transmission mechanism (I), a support mechanism (II), a platen device (III), a spring member (IV) and a mold (V), and the transmission mechanism (I), platen device (III), spring member (IV) and mold (V) are installed on the supporting mechanism (II), the transmission mechanism (I) is fixedly connected with the platen device (III), and the spring member (IV) supports Pressing the platen device (III), the transmission mechanism (I) can push the platen device (III) to overcome the force of the spring member (IV) and carry out extrusion movement towards the mold (V). 2. A simple composite material low-pressure molding device according to claim 1, characterized in that: the transmission mechanism (I) includes a hand wheel (1), a screw (2) and a nut (4), and the support The mechanism (II) includes an outer support shell (5), a support shell base (10), a column (12) and a general base (17), and the pressing plate device (III) includes an upper pressing plate (11), a lower pressing plate (15 ) and the pressure plate connection column (14), the spring member (IV) includes a spring (6), and the mold (V) includes a mold wall (16) and a mold base (8). 3. A simple composite material low-pressure molding device according to claim 2, characterized in that: the outer support shell (5) is square, and the bottom of the outer support shell (5) is fixed with a support shell base ( 10), the supporting shell base (10) is fixedly installed on the general base (17) by screws (9), and the number of the columns (12) is four, which are evenly fixed on the general base (17) by welding, The column (12) is located in the outer support shell (5); the number of the springs (6) is four, which are respectively set on the four columns (12); the hand wheel (1) is installed on the lead screw (2) At the joint at the top end, the nut (4) is adapted to the lead screw (2), the nut (4) is installed in the center of the top surface of the outer support shell (5) through the bolt (3), and the lead screw (2) passes through The nut (4) and the bottom extend into the outer support shell (5); the pressure plate device (III) is installed under the lead screw (2), and the upper pressure plate (11) and the lower pressure plate (15) are connected by the pressure plate to the column (14 ) are welded in one piece, the upper platen (11) is rectangular, and the four corners are provided with circular through holes matching the columns (12), the four corners of the upper platen (11) are set on the four columns (12), and the spring (6) Supported at the bottom of the upper platen (11); the mold base (8) is located at the bottom of the mold (V), and the mold base (8) is fixed on the general base (17) by screws (7), so that the mold (V ) top opening facing the lower platen (15). 4. A simple composite material low-pressure molding device according to claim 3, characterized in that: the number of the bolts (3) is four, and the number of screws (9) fixing the support shell base (10) is six , the number of screws (7) fixing the mold base (8) is four. 5. A simple composite material low-pressure forming device according to claim 3, characterized in that: the bottom of the lower platen (15) is provided with a pressure sensor position hole (18), and the pressure sensor position hole (18) is used for for placing the pressure sensor. 6. A simple composite material low-pressure forming device according to claim 5, characterized in that: the bottom of the upper platen (15) is welded with a display case (13), and the display case (13) is used for Place the display connected to the pressure sensor. 7. A simple composite material low-pressure molding device according to claim 3, characterized in that: the mold (V) is located in the center of the four columns (12).