Frequency-modulated, amplitude-modulated resultant force forming machine

[0018] The frequency and amplitude modulation combined force forming machine described in Example 1 is composed of a hydraulic device, a forming device and a vibration device. The vibration device is composed of a high-frequency vibration excitation device and a frequency converter. The vibration device is fixed on the base (1). A column (2) is placed vertically on the four corners of (1). The upper ends of the columns (2) are respectively fixed on the four corners of the top beam (16). The hydraulic device is fixed on the top through the upper end of the movable mold table (13). The lower end of the beam is fixed on the demolding table (9). The forming device is composed of the movable die table (13), the demolding table (9), the mold frame (24) and the mold. The high-frequency excitation device is mounted on two sets of shafts. It is composed of motors with eccentric wheels, each group has two motors, and the rotation speed is the same and the direction is opposite. The mass of the eccentric wheels (22) is correspondingly equal, and a gear synchronizer (20) is connected between a group of two shafts. , The frequency converter is composed of a motor (7) and more than one eccentric wheel (22), the speed of the motor (7) on the frequency converter is greater than the speed of the motor (5) and the motor (6) of the high frequency vibration device, the frequency converter Connected with a transformer, the frequency converter can be stepped and steplessly frequency converted, and the frequency converter can be installed in different directions on the bottom surface of the vibration table (4).

[0019] The guiding vibration column (8) of the frequency and amplitude modulation combined force forming machine described in embodiment 2 is in the shape of a box, and the box is divided into upper and lower layers. The high-frequency excitation device and the frequency converter are installed on the upper layer, and the lower layer is equipped with more than three The lower end of the spring and the vibration guide column (8) is directly connected with the base (1).

[0020] The side view of the vibrating table (4) of the frequency and amplitude modulation combined force forming machine described in embodiment 3 is dumbbell-shaped, and the high-frequency excitation device and the frequency converter are respectively installed in the cavities on both sides. The connection between the two cavities The bottom surface is on the upper surface of each cavity, the upper surface of the connecting surface can be placed on the mold frame (24), the lower surface is connected with more than three springs, the lower surface of the cavity and the lower end of the spring are both connected to the base (1) The upper surface is connected.

[0021] The implementation of the present invention has the following advantages:

[0022] The frequency and amplitude modulation combined force forming machine provided by the present invention is composed of a hydraulic device and a vibration device. The vibration device is composed of a high-frequency vibration excitation device and a frequency converter. The vibration excitation device and the frequency converter can be sealed and applied to dry powder In more occasions, its structure is simple, beautiful in appearance, easy to operate, safe and fast in molding speed, which completely solves the problem of spallation of fine powder and micro powder products, and its vibration amplitude and frequency are changed from the single form of the past to nothing. Level frequency modulation, by simply vibrating up and down, and then increasing the appropriate lateral vibration force, just like artificial sieving, it will make the product more compact.