There are two types of post-printing and molding processes for the beer trademark at the bottleneck of beer: one-off stamping, that is, one-time punching of finished products with die-cutting punches on the prints; there are also two-step forming processes. That is, the printed product is first cut into semi-finished products on a paper cutting machine, and then transferred to a die-cutting machine (such as: MWB-184 semi-automatic horizontal die-cutting machine) to cut the finished product with a die-cutting punching knife. The post-press processing of the beer trademark printed by our factory is based on two processes. According to the factory's production and processing technology and quality control, the author discusses some practical knowledge and experiences and exchanges with peers.
The sharpness of the knife is of utmost importance. After the trademark is printed on the paper cutter, it is cut into rectangles or squares. Usually, the paper used in the beer label is coated paper or aluminized paper. This type of paper is tougher than the offset paper. If a good-quality cutter is used to cut such paper, it is prone to chipping and chipping. Therefore, before cutting this type of paper, it is better to use a paper that is softer than this coated paper (or aluminized paper) to test and cut through the trials to grind and polish the burr that has just been ground. Afterwards it is used to cut the semi-finished products of this trademark. Because the paper is relatively hard, in the cutting process, the cutter is easy to wear and become blunt. This is an operator must pay attention to. Once the knife edge becomes dull, it is necessary to change the knife in time. Otherwise, because the edge of the cutting knife is not sharp, the paper cut surface of the cut paper is pressed and cut, and the paper trimming edge is pulled and dragged in, and the edges of the paper stack are between the edges of the paper stack. A state of stickiness is formed, and some may also be displaced. The size of the cut paper that is cut is inconsistent and inaccurate. Such a semi-finished product is not separated in the finishing and inspection after cutting, and it goes to the next finishing die-cutting process to perform punching processing, and it is obviously difficult to guarantee the quality of the finished product.
The semi-manufactured trademark that is cut on the paper cutting machine is transferred to the die-cutting machine for punching and the die-cutting punching knife is used for special processing according to the shape of the trademark (that is, a trademark is equipped with a corresponding die-cutting punching knife). Like the cutters on paper cutters, the use of sharp edges is one of the key factors in ensuring product quality. However, unlike the strip-shaped blades used in the paper cutters, the curvilinear punch cutters cannot be ground on the sharpeners that grind the cutter blades. At present, we use manual grinding and tapping. The method is: the brand's die-cutting punching knife is fixed on the clamp table, and the pistol-type electric drill is used to clamp the cylindrical gold steel and then the electric drill is started. The gold steel is pressed against the outer side of the punching knife to carry out die cutting. The blade angle of the knife is frustrated. After such a uniform initial grinding, the sharpening of the edge of the edge of the knife is carried out with a flat-faced or flat-repeating operation, until the edge is sharp. The sharpness of the edge is usually judged by hand based on experience. In addition, when sharpening or settling, it is necessary to grasp the angle of the knife edge. It is not only possible to rub against the slope of a small distance on the edge of the edge of the edge, so that the edge of the edge of the knife edge is controlled into an arc, even if The cutting edge is sharp, but the resistance during punching is large, and the cut surface of the cut product is squeezed and cut. It also produces paper edge adhesion or individual shift. The punch knife is not durable and can not be used. In addition, before frustration, we must first check whether the edge of the edge of the surface is smooth, if the end surface is uneven, you must first flatten the end face and then sharpen the knife corner. Because the edges of the cutting edge are not even and the level is not uniform, when the cutting is performed, the condition of the cutting edge contacting the cutting surface is not the same. In the same paper surface, there is a state where the cutting is started one after another. This inevitably results in some papers being cut. The deformation of the surface and the shift of the paper. Also, before cutting, the correct setting of the punching knife should be noted, the punching knife must be fixed in the middle, it must not be deviated, and the stopper limit (the stopper for the cutting product limit) must be adjusted to the middle position of the punching die. Correspondence coordination. This is a practical experience of using the MWB-184 semi-automatic horizontal die-cutting machine to cut beer labels.
The sharpness of the knife is of utmost importance. After the trademark is printed on the paper cutter, it is cut into rectangles or squares. Usually, the paper used in the beer label is coated paper or aluminized paper. This type of paper is tougher than the offset paper. If a good-quality cutter is used to cut such paper, it is prone to chipping and chipping. Therefore, before cutting this type of paper, it is better to use a paper that is softer than this coated paper (or aluminized paper) to test and cut through the trials to grind and polish the burr that has just been ground. Afterwards it is used to cut the semi-finished products of this trademark. Because the paper is relatively hard, in the cutting process, the cutter is easy to wear and become blunt. This is an operator must pay attention to. Once the knife edge becomes dull, it is necessary to change the knife in time. Otherwise, because the edge of the cutting knife is not sharp, the paper cut surface of the cut paper is pressed and cut, and the paper trimming edge is pulled and dragged in, and the edges of the paper stack are between the edges of the paper stack. A state of stickiness is formed, and some may also be displaced. The size of the cut paper that is cut is inconsistent and inaccurate. Such a semi-finished product is not separated in the finishing and inspection after cutting, and it goes to the next finishing die-cutting process to perform punching processing, and it is obviously difficult to guarantee the quality of the finished product.
The semi-manufactured trademark that is cut on the paper cutting machine is transferred to the die-cutting machine for punching and the die-cutting punching knife is used for special processing according to the shape of the trademark (that is, a trademark is equipped with a corresponding die-cutting punching knife). Like the cutters on paper cutters, the use of sharp edges is one of the key factors in ensuring product quality. However, unlike the strip-shaped blades used in the paper cutters, the curvilinear punch cutters cannot be ground on the sharpeners that grind the cutter blades. At present, we use manual grinding and tapping. The method is: the brand's die-cutting punching knife is fixed on the clamp table, and the pistol-type electric drill is used to clamp the cylindrical gold steel and then the electric drill is started. The gold steel is pressed against the outer side of the punching knife to carry out die cutting. The blade angle of the knife is frustrated. After such a uniform initial grinding, the sharpening of the edge of the edge of the knife is carried out with a flat-faced or flat-repeating operation, until the edge is sharp. The sharpness of the edge is usually judged by hand based on experience. In addition, when sharpening or settling, it is necessary to grasp the angle of the knife edge. It is not only possible to rub against the slope of a small distance on the edge of the edge of the edge, so that the edge of the edge of the knife edge is controlled into an arc, even if The cutting edge is sharp, but the resistance during punching is large, and the cut surface of the cut product is squeezed and cut. It also produces paper edge adhesion or individual shift. The punch knife is not durable and can not be used. In addition, before frustration, we must first check whether the edge of the edge of the surface is smooth, if the end surface is uneven, you must first flatten the end face and then sharpen the knife corner. Because the edges of the cutting edge are not even and the level is not uniform, when the cutting is performed, the condition of the cutting edge contacting the cutting surface is not the same. In the same paper surface, there is a state where the cutting is started one after another. This inevitably results in some papers being cut. The deformation of the surface and the shift of the paper. Also, before cutting, the correct setting of the punching knife should be noted, the punching knife must be fixed in the middle, it must not be deviated, and the stopper limit (the stopper for the cutting product limit) must be adjusted to the middle position of the punching die. Correspondence coordination. This is a practical experience of using the MWB-184 semi-automatic horizontal die-cutting machine to cut beer labels.
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