34results about How to "Make sure to drop" patented technology

The invention discloses a stamping device for processing the inner and outer rings of a bearing, which comprises a pier roughing station, a punching station and a punching station arranged in sequence, and the stations are respectively provided with a stamping mechanism and a height-adjustable stamping seat and a lower mold, a resettable lower mold is installed on one side of the stamping seat, a resettable ejector pin is installed on the inner side of the stamping seat, and one end of the ejector pin matches the material in the lower mold; A waste material collection box is provided at the lower part of the stamping seat on the hole station, and a conveying line with a baffle is provided on one side of the waste material collection box. The invention has a reasonable structural design, and the materials are processed in the sequence of pier thickness, groove punching and punching, which can reduce processing difficulty. Installing the lower mold and ejector rod through elastic parts can play a shock-absorbing role without affecting the stamping effect, prevent the stamping mechanism from directly contacting the lower mold to generate noise, and can make the material on the lower mold relative to the material after cutting The waste forms a displacement difference.

The invention discloses an English teaching blackboard convenient for drawing four-line grids. The English teaching blackboard comprises a rear board and a front board, wherein a plurality of magnet bars are arranged on the rear surface of the rear board; a dust cleaning mechanism is arranged between the rear board and the front board; a fan with an upward opening is arranged at the bottom between the rear board and the front board; a filter net is arranged on the fan; the upper part of the filter net is provided with a plurality of iron particles of which the peripheries are coated with white paint; for solving difficulties and confusion in current English teaching, a double-board structure mode is adopted; the fan for blowing and raising is arranged between the rear board and the front board; the electric magnet bars are arranged on the rear surface of the rear board, and are arranged in a four-line grid mode; when the raised iron particles move to the electric magnet bars, the iron particles are absorbed together due to the action of the electric magnet bars, so that a four-line grid is formed by the iron particles; then writing can be performed at will on the front board, so that multiple times of writing can be performed on the front board; and the English teaching blackboard is worthy of application and promotion.

The invention discloses a pendulant conveying belt applied to heat dissipation fins. The pendulant conveying belt comprises horizontal conveying belts, pendulant conveying belts and a blanking box, wherein the horizontal conveying belts comprise first conveying belts used for connecting a power roller and a horizontal roller; the first conveying belts are used for conveying along a horizontal direction; the pendulant conveying belts comprise second conveying belts used for connecting the power roller and a pendulation roller; the blanking box is parallel to a direction of a connection line between the power roller and the pendulation roller, is connected with a pendulation motor and is provided with a cavity for receiving heat dissipation fins; the pendulation roller is fixedly connected with the blanking box; the pendulation motor is used for driving the blanking box and the pendulation roller to pendulate along a direction of a self axis of the power roller; the blanking box and thesecond conveying belts are enclosed to form a cuboid with an opening; the pendulation motor is used for driving the blanking box to pendulate in a 90-degree included angle of a direction from verticalto horizontal; the opening direction is changed in an upward direction and a horizontal direction along with pendulation of the blanking box. Through the adoption of the pendulant conveying belt applied to the heat dissipation fins, the heat dissipation fins which are vertically blanked are converted to be horizontally conveyed; the conveying manner is changed; the pendulant conveying belt is high in conveying efficiency and free of damage to the heat dissipation fins.

The invention discloses a pendulant conveying belt applied to heat dissipation fins. The pendulant conveying belt comprises horizontal conveying belts, pendulant conveying belts and a blanking box, wherein the horizontal conveying belts comprise first conveying belts used for connecting a power roller and a horizontal roller; the first conveying belts are used for conveying along a horizontal direction; the pendulant conveying belts comprise second conveying belts used for connecting the power roller and a pendulation roller; the blanking box is parallel to a direction of a connection line between the power roller and the pendulation roller, is connected with a pendulation motor and is provided with a cavity for receiving heat dissipation fins; the pendulation roller is fixedly connected with the blanking box; the pendulation motor is used for driving the blanking box and the pendulation roller to pendulate along a direction of a self axis of the power roller; the blanking box and thesecond conveying belts are enclosed to form a cuboid with an opening; the pendulation motor is used for driving the blanking box to pendulate in a 90-degree included angle of a direction from verticalto horizontal; the opening direction is changed in an upward direction and a horizontal direction along with pendulation of the blanking box. Through the adoption of the pendulant conveying belt applied to the heat dissipation fins, the heat dissipation fins which are vertically blanked are converted to be horizontally conveyed; the conveying manner is changed; the pendulant conveying belt is high in conveying efficiency and free of damage to the heat dissipation fins.

The invention relates to an English teaching device, comprising an intelligent teaching table and a keyboard. An operation slot is provided on the intelligent teaching table, and a keyboard is arranged in the operation slot. A sealing slot is provided on the intelligent teaching table, and the sealing slot A blocking plate is movable in the groove, and the blocking plate is used to block the operation groove; the present invention adds a sealing structure on the English teaching device, and the setting of the sealing structure is used to realize the shielding of the keyboard, thereby After use, it can effectively prevent dust from being deposited on the keyboard, which can prolong the cycle of cleaning the keyboard, thereby saving time and effort. At the same time, it can avoid excessive dust from being deposited on the keyboard, so that during use, The comfort of use can be guaranteed, and the dust deposition on the keyboard can be avoided, and the protection of the keyboard can also be realized.