31results about How to "Avoid collisions and scratches" patented technology

The invention relates to a steel plate conveying and positioning device, which includes a base, and a front positioning mechanism and a rear positioning mechanism that are fixedly arranged on the baseand opposite to each other. A horizontal rod and a connecting rod are fixedly arranged on the front positioning mechanism and the rear positioning mechanism. The front positioning mechanism includesa conveying roller and two support rods arranged symmetrically. A guide groove is formed between the two support rods. The conveying roller has both ends assembled in a guide groove and is driven by adriving motor. A pressure roller is arranged on the conveying roller. An adjusting mechanism for moving the pressure roller up and down is arranged on the pressure roller. A steel plate conveying channel is formed between the pressure roller and the conveying roller. The adjusting mechanism drives the pressure roller to move, and then drives the pressure roller to get close to or away from the conveying roller. A spiral groove is disposed on the conveying roller to help to adjust the steel plate when the steel plate comes into contact with the conveying roller, to make the steel plate run smoothly in the overall running process of a conveying roller table, and to prevent the steel plate from slipping on the conveying roller table and causing invalid operation.

The invention discloses an automatic book access device for libraries, which includes a bookshelf and a mechanical gripper, the mechanical gripper is installed on a book distribution vehicle; inside the bookshelf, there are multiple layers at equal intervals from top to bottom The shelves are provided with a plurality of partitions parallel to each other along the horizontal direction on each shelf, and books are stored between adjacent partitions; a book management module and a book information module are also arranged on the bookshelves, so that The book management module is used for detecting, recording and displaying the absence of books on the bookshelf in real time; the book information module is used for storing the serial number information of books; The invention solves the problems of inaccurate book positions, different postures, and difficulties in automatic access in conventional libraries, realizes unique, adjustable, and data-based book positions on the bookshelf, and provides accurate feedback for book positions, thicknesses, and publications for the manipulator. information to ensure its automatic access to books.

The invention relates to a steel plate derusting mechanism, which includes a fixed platform, a steel plate guiding device arranged on the fixed platform, a steel plate conveying and positioning device, a steel plate derusting device and a steel plate derusting and dust removing device; Steel ball brushes are evenly distributed on the surface of the roller, and the steel plate can be derusted on both sides at the same time, which greatly improves the derusting efficiency of the steel plate; The rust layer and bonded matter also make the steel plate meet a certain surface quality requirement; the steel plate rust removal device is not limited by the site; the degree of automation is high, the efficiency of rust removal and cleaning is high, it is convenient for maintenance and loading and unloading, saving manpower and material resources, and improving work efficiency. efficiency.

The invention provides an automatic electric control system and control method for high and low cranes, belonging to the technical field of electric control, including a controller unit, a display unit, a sensor unit, a wireless transmission unit and a safety protection unit. The controller unit obtains the attitude of the box girder during hoisting according to the inclination sensor in the sensor unit, obtains the RTK spatial coordinate position of the head and tail of the box girder according to the hoist height encoder and the crane stroke encoder, and checks and resets the sky through the RFID position reader. The RTK position of the vehicle during operation, calculate the RTK space coordinate position of the box girder and compare it with the target value, control the lifting of the box girder according to the difference, realize the automatic box girder hoisting, the control accuracy is higher, the labor cost is reduced, and the construction efficiency is improved at the same time ; The safety protection unit is used to ensure a certain safe distance between the beam end and other objects to prevent collisions and scratches. When an alarm occurs, the controller unit can control the equipment to stop in time to ensure construction safety.

The invention provides a steel plate conveying roller way of a straightening machine and belongs to the technical field of steel plate conveying devices. The steel plate conveying roller way of the straightening machine comprises a conveying base, two roller beam bodies which are symmetrically arranged on the upper end surface of the conveying base, two gear rack guide rails which are symmetrically arranged on the upper end surface of the conveying base and are disposed on the outer sides of the roller beam bodies, a plurality of sliding tables which are symmetrically arranged on the two gear rack guide rails, a plurality of connecting guide rods which are respectively, vertically and fixedly installed on the upper end surfaces of the sliding tables, and a plurality of conveying rollers of which connecting shafts at two ends are respectively arranged between the inner side surfaces of the two roller beam bodies, wherein the plurality of conveying rollers are driven through a first driving motor and are used for conveying a steel plate. The steel plate conveying roller way of the straightening machine has the advantages that the steel plate can be enabled to stably and effectively run on the conveying roller way of the straightening machine, the effect of steel plate conveying and guide is achieved, the steel plate is enabled to be conveyed to a designated position and the steel plate can be prevented from falling during conveying.

The invention discloses a parking space guiding device, which comprises a garage frame fixed on the ground, a lifting chamber with an opening facing forward is fixed in the garage frame, a vehicle frame is slid in the lifting cavity, and the vehicle There is a car cavity with an opening facing forward fixedly in the frame. The device of the present invention is simple in structure and easy to use. The device is provided with front and rear wheel restricting parts. By restricting the front and rear wheels at the same time, the three-dimensional garage will Even if the handbrake is slightly pulled by the driver, the car will not move and cause a collision, and this device is equipped with anti-scratch parts. When the front of the car or the body hits, the anti-scratch parts are equipped with a buffer mechanism and a sponge pad to absorb the car. The kinetic energy gives the driver sufficient time to stop the vehicle, reducing or even eliminating the occurrence of collisions and scratches.

The invention relates to a hopper, and particularly discloses a hopper used for conveying bearings. The hopper comprises a big-end-up conical charging barrel and a connecting pipe connected with the bottom end of the charging barrel; three screening plates are sequentially arranged in the connecting pipe from top to bottom and divide the connecting pipe into a first cavity, a second cavity and a third cavity from top to bottom; the top end of the first cavity and the bottom end of the charging barrel are isolated through one screening plate, and the bottom end of the third cavity is in an opening state; branch pipes are arranged on the lateral walls of the first cavity and the second cavity, and a draught fan is arranged in each branch pipe; the branch pipes are communicated with recycling pipes; outlets of the recycling pipes are located at the inlet of the charging barrel; a plurality of lubricating balls used for isolating the bearings are arranged in the charging barrel; the screening plates are hinged to the connecting pipe and can be reset automatically; an annular boss is arranged on the lateral wall of the third cavity, and a gap allowing only one bearing to pass through is formed in the middle of the boss. The hopper can independently convey the bearings and avoid the bearings from being scratched in the conveying process.

The invention discloses a folding type hollow plate reusable container, comprising a first plate, a second plate, a third plate, a fourth plate and four hinges, wherein the first plate, the second plate, the third plate and the fourth plate are all plastic hollow plates; the first plate and the second plate have same structure and are arranged in parallel from front to rear; the third plate and the fourth plate have same structure and are arranged in parallel from left to right; the four plates are stamped and bent so as to form a front plate, a rear plate, a left plate, a right plate, four top covers and four bottom covers; two sides of the front plate, the rear plate, the left plate and the right plate are respectively provided with three to eight rivet mounting holes, and the four hinges are also provided with corresponding rivet mounting holes; the first plate, the second plate, the third plate and the fourth plate are riveted and fixed by the four hinges and rivets, thus connecting together and forming a rectangular box body; and protecting strips made of PE cotton are attached on the parts of the four hinges in the box body and protect stored articles in the box from being collided and scratched. The folding type hollow plate container has simple structure, convenient folding and less occupied space.

The invention relates to a method for producing semi-tempered glass. A double-stage cooling method is adopted in a cooling process of the method for producing the semi-tempered glass, namely secondary cooling is added on the basis of reservation of conventional primary cooling, so that the influence of abrupt change of wind pressure on the flatness of the glass is reduced in the cooling process, the semi-tempered glass with better flatness is obtained, and the effects of saving the cooling time, reducing the total energy-saving quantity of the semi-tempered glass to 10 percent of the prior art and promoting the flatness of the semi-tempered glass from 3 / 1,000 to 1 / 1,000 can be achieved.