7results about How to "Effective volume control" patented technology

The utility model provides a semiconductor module turnover device, and belongs to the technical field of semiconductors. In order to solve the problem that semiconductor module turnover operation is low in precision, the utility model provides a semiconductor module turnover device which comprises a carrying mechanical arm, a positioning platform and a turnover mechanism. The positioning platform comprises two positioning tables which are arranged at an interval, an avoiding space is formed between the two positioning tables, limiting blocks are arranged on the outer edges of the upper surfaces of the two positioning tables, and a limiting space for accommodating a semiconductor module is formed; the carrying mechanical arm is used for carrying the semiconductor module into the limiting space of the positioning platform; and the overturning mechanism is used for extending into the avoiding space and clamping and overturning the semiconductor module in the limiting space. According to the invention, the semiconductor module is firstly positioned and then overturned, so that the overturning operation precision is improved.

The utility model discloses an axial flow heat radiation servo motor, comprising a casing provided with a cover, the cover is provided with a plurality of air holes, and the casing is rotatably connected with a rotating shaft; the stator assembly is in a circular ring shape and is connected into the machine shell. The rotor assembly is connected to the rotating shaft, the stator assembly surrounds the rotor assembly, and an annular air gap is formed between the rotor assembly and the stator assembly; and the cooling fan comprises an end seat and a plurality of fan blades, the end seat is in a circular ring shape, the end seat is connected to the end part of the rotor assembly, all the fan blades are distributed along the circumferential surface of the end seat, the fan blades are overlapped with the air gaps, the fan blades are overlapped with the air holes, the fan blades are bent towards the extension direction of the rotating shaft, and the fan blades are in central symmetry about the rotating surface of the end seat. The heat dissipation device is compact and reliable in structure, heat dissipation cost can be effectively saved, pertinence of fan blade operation heat dissipation is high, the energy utilization rate is high, heat dissipation efficiency is high, operation stability is high, and stable heat dissipation under the bi-directional rotation working condition can be guaranteed.

Two front fork arms (2-1) are installed at the two ends of the front portion of a rear connecting base (2-3) of a chassis assembly (2) in parallel, driving wheels (3) are installed on the outer sides of the two front fork arms (2-1) through supports respectively, a circular groove is formed in the bottom of the rear connecting base (2-3), and an auxiliary steering assembly (6) is installed in the circular groove. The auxiliary steering assembly (6) drives rolling wheels arranged on the auxiliary steering assembly (6) through a driving motor internally provided with a clutch, rails (2-2) are fixedly installed on the upper portions of the two front fork arms (2-1), toothed belts (2-21) are arranged on the upper surfaces of the rails (2-2), and laser radars (4) are installed on the surfaces of the front portions of the two front fork arms (2-1) respectively. According to the automatic hub stacking machine, hub stacks in a plant can be automatically transferred to a goods yard or the hub stacks in the goods yard can be loaded on a truck, the logistics efficiency can be effectively improved, and the overall working efficiency of the goods yard is improved.

The utility model discloses an internal resistance measuring circuit for a backup power supply of a distribution automation terminal. The internal resistance measuring circuit comprises an MCU, a V / I conversion circuit and an amplification sampling part. The output port of the DAC module of the MCU is connected with the input end of the V / I conversion circuit; the positive and negative electrodes of the output end of the V / I conversion circuit are correspondingly connected with the positive and negative electrodes of the backup power supply. The positive and negative electrodes of the input end of the amplification sampling part are correspondingly connected with the positive and negative electrodes of the backup power supply, and the output end is connected with the input end of the ADC module of the MCU. The internal resistance of the battery is estimated by measuring the impedance characteristic of the battery under an alternating current signal, a high-power resistor is not needed, the size can be effectively controlled, a back-up power supply cannot be damaged by a small current signal, and a measurement result with higher precision can be conveniently obtained after signal amplification.

The utility model discloses a touch formula gear adjustment control's beauty instrument, include: main part structure and cover, the upper surface of cover is provided with base layer, electrode layer and insulating layer from below to above, and the inside of main part structure is provided with control circuit, and control circuit electric connection has electric capacity touch singlechip, and electrode layer forms gear adjustment interval on the cover. The utility model adopts the mode of electric capacity touch screen, and the electrode layer is provided with protection by base layer and insulating layer, to form electric capacity touch screen. When the finger contacts the insulating layer, the capacitance value at the contact point will change, and the electric capacity touch singlechip obtains the position, intensity and other information of the touch point, and converts into operation instruction, and the control circuit carries out the quick adjustment of the size of the spray amount, the length of the spray time. Compared with the mode of adjusting by the key, the utility model can improve the overall appearance and coordination, and can improve the convenience of adjustment control, and effectively control the structure and volume of the whole.

The invention belongs to the technical field of plastic forming processing, and particularly relates to an injection molding process and system for preparing light-weight plastic. Controllability of air pressure in the mold cavity is realized through process control, so that the volume of the polymer melt can be effectively controlled, and 10-15% of plastic weight reduction is realized under the condition that the mold is not changed.

The present invention relates to a multi-rice box feeding device, comprising a rice box, a rice outlet cover, a quantitative impeller and a collecting funnel which are coaxially arranged in sequence; the rice box at least comprises a plurality of rice box bodies; the rice outlet cover comprises an upper cover body, an upper cover outer gear arranged on the outer ring of the upper cover body, an upper cover rice inlet and an upper cover rice outlet structure arranged on the upper cover body, and an upper cover driving mechanism for driving the upper cover body to rotate, and the upper cover outer gear is connected to the upper cover driving mechanism. Accordingly, the present invention also provides a feeding method based on the above-mentioned multi-rice box feeding device. The multi-rice box feeding device provided by the present invention realizes the mixing of multiple grains, and through the setting of the quantitative impeller, realizes the precise measurement of different grain quantities, which can be realized by installing only two driving mechanisms, and the volume of the device is effectively controlled, the production cost is low, and it is conducive to the promotion and market application of the product.