A die cutting roller having a highly adjustable stiffness controllable cutter

Abstract

The application provides a die cutting roller with a highly adjustable stiffness controllable cutter, comprising: shaft heads arranged at axial two ends of the die cutting roller, a cutter holder arranged between the shaft heads at the two ends, a cutter fixed on the cutter holder, and an inner support arranged in the die cutting roller; the inner support is used for connecting the cutter holder and the shaft heads at the two ends; the cutter is connected with the cutter holder through a negative Poisson's ratio chiral material, and the cutter has a free degree of movement along the radial direction of the die cutting roller. The die cutting roller has the advantages of efficient slicing and light weight.

Description

Technical Field

[0001] The present invention relates to a high-performance engineering structure, which is mainly used in the die-cutting machine industry, more specifically a die-cutting roller with high efficiency and light weight to protect the tool. Background Art

[0002] Die-cutting machines are often used for processing and cutting finished strips. Also known as die-cutting machines, cutting machines, or CNC punching machines, these machines are primarily used for die-cutting (full or partial cutting), creasing, hot stamping, laminating, and automatically discharging waste for non-metallic materials, self-adhesive labels, EVA, double-sided tape, electronics, and cell phone adhesive pads. Die-cutting machines utilize steel blades, metal molds, and steel wire (or a template carved from steel plate) to apply pressure through a stamping plate to cut printed products or cardboard into defined shapes.

[0003] A die-cutting machine is a device that die-cuts or embosses cardboard into the required size and shape. Its working parts are mainly die-cutting rollers and support rollers. The corrugated cardboard is conveyed between the die-cutting rollers and the support rollers, and the cutters on the die-cutting rollers die-cut the cardboard. However, the thickness of corrugated cardboard varies with the number of layers. It is necessary to adjust the spacing between the die-cutting rollers and the support rollers to achieve the ideal die-cutting effect for corrugated cardboard of different thicknesses. Currently, the die-cutting rollers are adjusted by a motor through a screw structure. The friction resistance of the screw structure is large, and a lot of electricity is wasted during adjustment. In addition, due to the small thickness adjustment amount and inaccurate screw adjustment control, it is still difficult to adjust to the appropriate spacing.

[0004] There are many die-cutting roller structures on the market, but the production efficiency of the die-cutting machine is limited by reasons such as the easy damage of the cutter, the complicated replacement process and the easy breakage of the shaft. Summary of the Invention

[0005] The main technical problem to be solved by the present invention is to provide a die-cutting roller with a tool having adjustable height and controllable stiffness, which has the requirements of high efficiency in slicing and lightweight at the same time.

[0006] In order to solve the above-mentioned technical problems, the present invention provides a die-cutting roller with a tool having adjustable height and controllable stiffness, comprising: shaft heads arranged at both axial ends of the die-cutting roller, a tool holder arranged between the shaft heads at both ends, a tool fixed to the tool holder, and an internal support arranged inside the die-cutting roller; the internal support is used to connect the tool holder and the shaft heads at both ends; the tool is connected to the tool holder via a chiral material with a negative Poisson's ratio, and the tool has freedom of movement along the radial direction of the die-cutting roller.

[0007] In a preferred embodiment: the inner support of the die-cutting roller includes four elliptical plates, which are divided into two groups. The two elliptical plates in each group cross to form an X-shaped support plate. The facing sides of the two groups of X-support plates are connected to each other and to the tool holder, and the facing sides of the two groups of X-support plates are connected to the shaft head.

[0008] In a preferred embodiment: the tool holder has a tool groove reserved along the radial outer side wall of the die-cutting roller to install the tool, and the tool holder is provided with tool fixing holes radially penetrating along the radial outer side wall of the die-cutting roller, and the tool fixing holes are arranged at intervals along the extension direction of the tool groove.

[0009] In a preferred embodiment, the tool is manufactured in sections, and a screw hole cooperating with the fixing hole is provided at the bottom of the tool.

[0010] In a preferred embodiment, the tool is connected to the tool holder by an adjusting bolt, and a compression spring is sleeved on the adjusting bolt so that the tool has freedom of movement along the radial direction of the die-cutting roller.

[0011] In a preferred embodiment, the negative Poisson's ratio chiral material consists of circular nodes and ligaments, the ligaments are arranged along the tangent direction of the circular nodes, and the ligaments are rotationally symmetrically distributed around the center of the circular nodes.

[0012] In a preferred embodiment, there are four ligaments, and two adjacent circular nodes are connected to each other through one ligament.

[0013] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0014] 1. Excellent bending resistance.

[0015] The invention provides a die-cutting roller with a tool having adjustable height and controllable rigidity. The die-cutting roller is supported by a cross elliptical plate inside to strengthen the rigidity of the die-cutting roller, reduce disturbance and improve bending resistance.

[0016] 2. It has the advantage of lightweight roller body.

[0017] The present invention provides a die-cutting roller with a cutter having adjustable height and controllable rigidity. The die-cutting roller adopts a hollow structure design, which effectively reduces the weight of the roller body itself and improves the level of lightweighting.

[0018] 3. Protect the tool

[0019] The present invention provides a die-cutting roller with a tool having adjustable height and controllable stiffness. The height and contact stiffness are controlled by a compression spring, an adjustment bolt, and a chiral material, so that the contact force between the tool and the contact object is controllable, thereby effectively protecting the tool and preventing damage to the tool.

[0020] 4. Work efficiently and stably.

[0021] The present invention provides a die-cutting roller with a tool having adjustable height and controllable stiffness. The design of the detachable tool and a series of adjustment structures reduce the frequency of tool damage, thereby enabling the die-cutting machine to operate stably and sustainably, which plays an important role in improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of a die-cutting roller according to a preferred embodiment of the present invention;

[0023] Figure 2 It is a diagram of the internal support structure of a preferred embodiment of the present invention;

[0024] Figure 3 A diagram showing the connection structure of a tool according to a preferred embodiment of the present invention;

[0025] Figure 4 A cross-sectional view of a cutting tool according to a preferred embodiment of the present invention;

[0026] Figure 5 Schematic diagram of a negative Poisson's ratio chiral material according to a preferred embodiment of the present invention DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] refer to Figure 1-Figure 5 This embodiment provides a die-cutting roller with a tool having adjustable height and controllable stiffness, comprising: shaft heads 7 arranged at both axial ends of the die-cutting roller, a tool holder 2 arranged between the shaft heads 7 at both ends, a tool 3 fixed on the tool holder 2, and an inner support 1 arranged inside the die-cutting roller; the inner support 1 is used to connect the tool holder 2 and the shaft heads 7 at both ends; the tool 3 is connected to the tool holder 2 through a negative Poisson's ratio chiral material 6, and the tool 3 has freedom of movement along the radial direction of the die-cutting roller.

[0031] In this embodiment, the inner support 1 of the die-cutting roller includes four elliptical plates, which are divided into two groups. The two elliptical plates in each group cross to form an X-shaped support plate. The facing sides of the two groups of X-support plates are connected to each other and to the tool holder 2, and the facing sides of the two groups of X-support plates are connected to the shaft head 7.

[0032] In order to install the tool 3, the tool holder 2 reserves a tool groove along the radial outer wall of the die-cutting roller to install the tool 3. The tool holder 2 is provided with a tool 3 fixing hole along the radial direction along the radial outer wall of the die-cutting roller. The tool 3 fixing holes are arranged at intervals along the extension direction of the tool groove.

[0033] Specifically, the tool 3 is made in sections, and a screw hole that matches the fixing hole is provided at the bottom of the tool 3.

[0034] In order to allow the tool 3 to move freely along the radial direction of the die-cutting roller, the tool 3 is connected to the tool holder 2 with an adjusting bolt 4, and the adjusting bolt 4 is covered with a compression spring 5, so that the tool 3 has freedom of movement along the radial direction of the die-cutting roller.

[0035] In this embodiment, the negative Poisson's ratio chiral material 6 is composed of circular nodes and ligaments. The ligaments are arranged along the tangent direction of the circular nodes and are rotationally symmetrically distributed around the center of the circular nodes. There are four ligaments, and two adjacent circular nodes are connected to each other by a ligament.

[0036] The aforementioned die-cutting roller with a height-adjustable and controllable stiffness cutter 3 effectively protects the tip of the cutter 3 through the yield characteristics of the spring and the recovery characteristics of the negative Poisson's ratio chiral material 6, making the contact force during the slicing process controllable and preventing damage to the cutter 3 due to excessive contact force. At the same time, the cross-shaped structure of the internal support 1 can enhance the overall stiffness of the roller, reduce disturbances, and thus reduce vibration during operation, thereby improving the stability and efficiency of the slicing process. The die-cutting roller can be used on die-cutting machines such as rotary-to-rotary and rotary-to-flat presses, and can effectively perform operations such as die-cutting, creasing, hot stamping, and laminating.

[0037] In addition, the die-cutting roller having the tool 3 with adjustable height and controllable rigidity has a cross-elliptical plate inner support 1 inside the die-cutting roller, which strengthens the rigidity of the die-cutting roller, reduces interference, and improves the bending resistance.

[0038] In addition, the die-cutting roller adopts a hollow structure design, which effectively reduces the weight of the roller itself and improves the lightweight level.

[0039] In addition, by controlling the height and contact stiffness through the compression spring 5, the adjustment bolt 4, and the chiral material, the contact force between the tool 3 and the contact object can be controlled, thereby effectively protecting the tool 3 and preventing damage to the tool 3.

[0040] Finally, the design of the detachable cutter 3 and a series of adjustment structures reduce the frequency of damage to the cutter 3, thereby enabling the die-cutting machine to operate stably and sustainably, which plays an important role in improving production efficiency.

[0041] The above is only a preferred specific embodiment of the present invention, but the design concept of the present invention is not limited to this. Any technician familiar with this technical field who uses this concept to make non-substantial changes to the present invention within the technical scope disclosed by the present invention shall be deemed to infringe the scope of protection of the present invention.

Claims

1. A die-cutting roller with a tool having adjustable height and controllable stiffness, characterized in that include: A shaft head is arranged at both ends of the die-cutting roller, a tool holder is arranged between the shaft heads at both ends, a tool fixed on the tool holder, and an internal support is arranged inside the die-cutting roller; the internal support is used to connect the tool holder and the shaft heads at both ends; the tool is connected to the tool holder through a negative Poisson's ratio chiral material, and the tool has freedom of movement along the radial direction of the die-cutting roller; the internal support of the die-cutting roller includes four elliptical plates, the four elliptical plates are divided into two groups, and the two elliptical plates in each group cross to form an X-shaped support plate, the two groups of X support plates facing each other are connected to each other and to the tool holder, and the two groups of X support plates facing each other are connected to the shaft head; the tool holder is pre-stuck along the radial outer wall of the die-cutting roller A knife groove is left for installing the knife, and the knife holder is provided with a knife fixing hole along the radial direction of the outer side wall of the die-cutting roller, and the knife fixing holes are arranged at intervals along the extension direction of the knife groove; the knife is made in sections, and the bottom of the knife is provided with a screw hole that cooperates with the fixing hole; the knife is connected to the knife holder with an adjusting bolt, and the adjusting bolt is covered with a compression spring so that the knife has freedom of movement along the radial direction of the die-cutting roller; the negative Poisson's ratio chiral material is composed of circular nodes and ligaments, the ligaments are arranged along the tangent direction of the circular nodes, and the ligaments are rotationally symmetrically distributed around the center of the circular nodes; two adjacent circular nodes are connected to each other by a ligament.

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