59results about How to "Avoid chamfers" patented technology

The invention relates to a sensor and assembly comprised in a housing for a hand-held and hand-operated printing device controlled by a processor, and a method therefor. It provides that the assembly comprises an arrangement and a method for preventing skew and cutting of printed images.

The invention discloses an air suction / exhaust method and structure of a V-shaped box facial tissue folding machine. The two ends of each tissue folding roller with a cutter on the roller surface are provided with air suction control ports in mutual communication respectively; air suction is performed at the air suction control ports at the two ends at the same time to form a negative pressure and absorb the facial tissue; and thus the processes of tissue feeding, cutting and folding are realized on the same tissue folding roller. The structure disclosed by the invention comprises two parallel tissue folding rollers and two cutter shafts; the roller surface of each tissue folding roller is axially provided with a cutter corresponding to the cutter shaft; each side of each tissue folding roller is provided with a tissue feeding air suction control port, a tissue folding air suction port and a corresponding air valve; the tissue feeding air suction control port and the tissue folding air suction control port are mutually communicated through an air suction channel; and air suction holes are correspondingly communicated with the corresponding air suction channel to form a structure realizing respective and synchronous air suction of the tissue feeding air suction control port and the tissue folding air suction control port on the two sides of the tissue folding roller. The invention has the advantages of high efficiency, high tissue folding precision, low energy consumption and low production and operation cost.

The invention discloses an automatic collecting device for packaging bags, which is provided with a rack, a packaging bag conveying mechanism, a packaging bag collecting mechanism, a packaging bag clamping mechanism, a packaging bag bundling mechanism, a packaging bag dragging mechanism and a collecting box are sequentially arranged on the rack according to the production sequence, and the packaging bag conveying mechanism is provided with a conveying linear guide rail arranged on the rack; three partition plates are arranged on the conveying linear guide rail, the partition plates are connected with the conveying linear guide rail through conveying sliding blocks, the partition plates can be fixed to any position of the conveying linear guide rail, and the partition plates can freely move on the conveying linear guide rail by arranging the conveying linear guide rail in the packaging bag conveying mechanism. The automatic collecting device is suitable for conveying packaging bags of different sizes and models, two conveying channels are formed by arranging the three partition plates, one device can convey two packaging bags at the same time, and the use efficiency and the production efficiency of the device are improved.

The invention discloses a novel schoolbag for elementary school students. The novel schoolbag comprises a bag body (1), bag straps (2), a stationery pocket (3) and sundry net bags (4); a plurality of separation plates (5) are arranged in the bag body (1) to divide the bag body (1) into a plurality of spaces, and a soft pad (6) is mounted at the bottom of the bag body (1). The bag straps (2) are located on the back face of the bag body, a pull rod (7) is mounted on the back face of the bag body, and plastic wheels (8) are mounted at the lower end of the pull rod (7). The stationery pocket (3) is located on the outer side of the bag body (1); the sundry net bags (4) are located on the left side and the right side of the bag body. According to the novel schoolbag, the separation plates are arranged to divide the bag body into the spaces, and therefore multiple books can be placed in different spaces. The books are protected through the soft pad at the bottom of the bag body, and stationery can be placed in the stationery bag on the outer side of the bag body. Water bottles, umbrellas and other articles can be placed in the sundry net bags; especially the pull rod and the plastic wheels are arranged, the schoolbag can be dragged, and loads on the shoulders of a child can be relieved.

While conveying paper, the paper is folded in a first folding pattern at right angles to the conveyance direction (S1). By bending and rupturing the folded paper, one or multiple perforation lines corresponding to a second folding pattern that is at right angles to the fold(s) are formed in the paper (S2). While conveying the paper with perforations in a direction at right angles to the previous conveyance direction, the paper is folded in the second folding pattern along the perforations, thereby forming a quire (S3).

The invention discloses a thick extensible schoolbag management box, which comprises a box body consisting of a bottom, a front wall, a rear wall, a left side wall and a right side wall and taking the upper end as an access end. Classification cards are arranged in the box body; the front wall and the rear wall, which have horizontal bottom edges, of the box body are respectively provided with two side edges vertically extending upwards from the bottom edge; the front wall and the rear wall are opposite to each other, the bottom edges of the front wall and the rear wall are aligned, two sides of the front wall are aligned with two sides of the rear wall, and a distance between the front wall and the rear wall forms the thickness of the box body; the classification cards are sleeved and hung on a classification card rail on two side walls or the bottom of the box body through a sleeving and hanging device arranged on the two sides or the bottom; the left side wall, the right side wall and the bottom of the box body are direct extensible walls; the classification card rail connects the front wall and the right wall of the box body, extends along with the thickness of the box body, and is always parallel to the bottom of the box body; and the classification cards can freely move to the front wall and the rear wall of the box body along the classification card rail.