A plane cutting machine for soft materials may include a worktable, a feeding device, a XY plane cutting system, and a computer. The feeding device is located above the worktable. The XY plane cutting system is located above the feeding device. The worktable is divided into a first worktable and a second worktable. The feeding device comprises a first feeding device and a second feeding device disposed above the first worktable and the second worktable, respectively. A first camera and a second camera are provided above the first feeding device and the second feeding device, respectively. The first camera and the second camera are connected with an input end of the computer via a data line. The XY plane cutting system is connected with an output end of the computer via a data line.

The invention discloses a method for preparing leather for cases, which comprises: a. selecting cow leather, which comprises dermis layer and subcutaneous tissue layer; b. uniformly cutting the subcutaneous tissue layer as an lamellar layer, and holding it in the inner side of the cow leather; c. sculpturing the cut lamellar subcutaneous tissue layer as a desired embossed pattern, and removing its peripheral portion; d. placing the cow leather sculptured with embossed pattern in a three-dimensional mold, and pressing the embossed pattern portion towards the inner side of the dermis layer so that the raised pattern structure same with the embossed pattern is formed on the outer surface of the dermis layer; e. performing antiseptic treatment; f. performing rubber injection treatment; g. inlaying metal trim parts. With the above processing, the present invention can produce leather for cases with aesthetic style, good visual effect and noticeable feeling of touch.

The invention discloses a method for preparing leather for cases, which comprises: a. selecting cow leather, which comprises dermis layer and subcutaneous tissue layer; b. uniformly cutting the subcutaneous tissue layer as an lamellar layer, and holding it in the inner side of the cow leather; c. sculpturing the cut lamellar subcutaneous tissue layer as a desired embossed pattern, and removing its peripheral portion; d. placing the cow leather sculptured with embossed pattern in a three-dimensional mold, and pressing the embossed pattern portion towards the inner side of the dermis layer so that the raised pattern structure same with the embossed pattern is formed on the outer surface of the dermis layer; e. performing antiseptic treatment; f. performing rubber injection treatment; g. inlaying metal trim parts. With the above processing, the present invention can produce leather for cases with aesthetic style, good visual effect and noticeable feeling of touch.

A device is for holding a vibrating steel blade on a blade holder of a cutting machine, and includes a blade holder having a notch able to receive an upper end of a blade, means for holding by magnetism the upper end of the blade in the notch of the blade holder along a direction perpendicular to a longitudinal axis of the blade, and at least one lug formed in the notch and able to be housed in a cutout made in the upper end of the blade to ensure an absorption of the cutting forces.

A press punching device has a reinforcing plate. The press punching device includes: a punching jig configured such that a plurality of punching needles having respective through holes are coupled thereto; a reinforcing plate formed at the bottom end of the punching jig, and configured to support the punching jig; a support block formed at the bottom end of the reinforcing plate, and configured to support the reinforcing plate; a base plate formed at the bottom end of the support block, and configured to be movable in a lateral straight line; and one or more rollers configured to press a base material seated on the punching jig.

A press punching device has a reinforcing plate. The press punching device includes: a punching jig configured such that a plurality of punching needles having respective through holes are coupled thereto; a reinforcing plate formed at the bottom end of the punching jig, and configured to support the punching jig; a support block formed at the bottom end of the reinforcing plate, and configured to support the reinforcing plate; a base plate formed at the bottom end of the support block, and configured to be movable in a lateral straight line; and one or more rollers configured to press a base material seated on the punching jig.

Described is a natural leather trimming machine including: an ironing device for stretching and removing creases and wrinkles from the leather, cutting means for cutting the leather along at least one cutting line, a detection unit configured to detect the position of the leather, the shape of at least one relative end edge, and the position of any defects close to at least one relative end edge, a plurality of conveyor belts and a first command and control unit configured to determine the cutting coordinates of the leather.

Described is a natural leather trimming machine including: an ironing device for stretching and removing creases and wrinkles from the leather, cutting means for cutting the leather along at least one cutting line, a detection unit configured to detect the position of the leather, the shape of at least one relative end edge, and the position of any defects close to at least one relative end edge, a plurality of conveyor belts and a first command and control unit configured to determine the cutting coordinates of the leather.