Die cutting device and die cutting equipment with same

Abstract

The invention discloses a die cutting device and die cutting equipment with the die cutting device.The die cutting device comprises a base table, a die cutting roller and a bottom roller, the bottom roller is rotationally connected to the base table, the die cutting roller is provided with a cutter point extending in the circumferential direction, and the cutter point is used for cutting the shape of a material strap; the bottom roller is rotationally connected to the base table and is opposite to the die cutting roller, an avoiding groove extending in the circumferential direction is formed in the bottom roller, and at least part of the blade point extends into the avoiding groove. The avoiding groove is formed in the bottom roller, at least part of the cutter point extends into the avoiding groove, on one hand, the bottom roller can support the material belt in the cutting process so as to be matched with the cutter point to cut the material belt, on the other hand, the avoiding groove can provide space for the cutter point to cut the material belt, the material belt does not need to be provided with a cutter padding material, and cost is reduced.

Description

Technical Field

[0001] The invention relates to the field of die-cutting processing, and in particular to a die-cutting device and die-cutting equipment having the die-cutting device. Background Art

[0002] In the field of die-cutting, a die-cutting roller is usually used to cut the material strip. Specifically, the bottom roller contacts the material strip to provide support for the material strip, and the die-cutting roller drives the blade to rotate to cut the material strip from the side of the material strip away from the bottom roller. In order to reduce the risk of wear caused by the blade being squeezed with the bottom roller in the radial direction during the rotation of the bottom roller, and to ensure that the blade can cut through the material strip, it is usually necessary to add a knife pad film on the side of the material strip to be cut away from the blade, which leads to increased material consumption and increased processing costs. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a die-cutting device and a die-cutting equipment, which can reduce the consumption of the blade pad material during the die-cutting process to reduce the cost.

[0004] In the first aspect, an embodiment of the present invention provides a die-cutting device, which includes a base, a die-cutting roller and a bottom roller. The die-cutting roller is rotatably connected to the base, and the die-cutting roller is provided with a blade extending along the circumferential direction, and the blade is used to cut the shape of the material strip; the bottom roller is rotatably connected to the base and is opposite to the die-cutting roller. The bottom roller is provided with an avoidance groove extending along the circumferential direction, and at least part of the blade extends into the avoidance groove.

[0005] The die-cutting device provided in the first aspect of the present invention has at least the following beneficial effects: By opening an avoidance groove on the bottom roller and at least partially extending the blade into the avoidance groove, on the one hand, the bottom roller can provide support for the material strip during the cutting process to cooperate with the blade to cut the material strip, and on the other hand, the avoidance groove can provide space for the blade to cut through the material strip, and the material strip does not need to be set with blade pad material, thereby reducing costs.

[0006] According to some embodiments of the first aspect of the present invention, the die-cutting roller is provided with a product knife group extending in the circumferential direction, the product knife group is used to cut the material strip to form a preset product, and the blades are arranged on both sides of the product knife group in the axial direction.

[0007] According to some embodiments of the first aspect of the present invention, there are multiple product knife groups, the multiple product knife groups are arranged in the axial direction, and a blade is provided between any two adjacent product knife groups.

[0008] According to some embodiments of the first aspect of the present invention, a plurality of blades are provided, and the plurality of blades are arranged at intervals along the axial direction; a plurality of avoidance grooves are provided, and the plurality of avoidance grooves are arranged at intervals along the axial direction; the number of blades and avoidance grooves is the same and corresponds one to one.

[0009] According to some embodiments of the first aspect of the present invention, the circumferential surface of the die-cutting roller and the circumferential surface of the bottom roller enclose a processing space through which the supply belt passes.

[0010] According to some embodiments of the first aspect of the present invention, the blade is spaced apart from the bottom wall and the side wall of the avoidance groove.

[0011] According to some embodiments of the first aspect of the present invention, the depth of the blade extending into the avoidance groove is 1.5 mm-2.5 mm.

[0012] According to some embodiments of the first aspect of the present invention, the product knife set includes a plurality of knife units arranged in an array, and there is a spacing distance between any two adjacent knife units.

[0013] According to some embodiments of the first aspect of the present invention, the die-cutting device includes a driving mechanism, which is connected to the die-cutting roller and can drive the die-cutting roller to rotate.

[0014] In a second aspect, an embodiment of the present invention provides a die-cutting device, which includes a feeding mechanism and a die-cutting device according to any one of the embodiments of the first aspect, wherein the feeding mechanism is used to transfer the material strip to a bottom roller.

[0015] The die-cutting equipment according to some embodiments of the second aspect of the present invention has at least the following beneficial effects: By setting the die-cutting device provided by the above-mentioned first aspect implementation method in the die-cutting equipment, it is beneficial to avoid radial extrusion of the bottom roller between the blade and the bottom roller, thereby effectively reducing the blade pad material required to be consumed during the die-cutting process.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 It is a front view of a die-cutting device according to an embodiment of the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of a portion of the structure shown in; Figure 3 It is a schematic diagram of a material strip processed by a die-cutting device according to an embodiment of the present invention. Description of the drawings: Die-cutting device 100; die-cutting roller 110; blade 111; bottom roller 120; avoidance groove 121; processing space 130; handle-shaped structure 140; annular step 150; side wall 160; bottom wall 170; depth H; material strip 200; blade cutting line 210; product knife group cutting line 220. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, left, right, front, back, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] Reference Figure 1 , Figure 1 It is a front view of a die-cutting device 100 according to an embodiment of the present invention. The embodiment of the present invention provides a die-cutting device 100, which includes a base (not shown in the figure), a die-cutting roller 110 and a bottom roller 120. The die-cutting roller 110 is rotatably connected to the base, and the die-cutting roller 110 is provided with a blade 111 extending in the circumferential direction, and the blade 111 is used to cut the outer shape of the material strip 200; the bottom roller 120 is rotatably connected to the base and is opposite to the die-cutting roller 110. The bottom roller 120 is provided with an avoidance groove 121 extending in the circumferential direction, and at least a part of the blade 111 extends into the avoidance groove 121.

[0022] Specifically, in some embodiments, the die-cutting roller 110 and the bottom roller 120 are provided with a handle-like structure 140 at both ends of the axial direction, and a mounting hole (not shown in the figure) whose size matches that of the handle-like structure 140 is provided on the base, and the handle-like structure 140 is passed through the mounting hole and is provided on the base in a manner of gap matching with the mounting hole. Such a configuration enables the die-cutting roller 110 and the bottom roller 120 to be rotatably connected to the base. In some other embodiments, a bearing may be provided between the handle-like structure 140 and the mounting hole to reduce the friction generated between the die-cutting roller 110 and the bottom roller 120 and the bottom roller 120 during rotation.

[0023] In this embodiment, the axis of the die-cutting roller 110 is parallel to the axis of the bottom roller 120 , the material belt 200 passes between the die-cutting roller 110 and the bottom roller 120 , and the conveying direction of the material belt 200 is perpendicular to the axis direction of the die-cutting roller 110 and the bottom roller 120 .

[0024] In this embodiment, the blade 111 extends circumferentially on the circumferential surface of the die-cutting roller 110 and forms a circular ring around the circumferential surface of the die-cutting roller 110; the avoidance groove 121 extends circumferentially on the circumferential surface of the bottom roller 120 and forms a circular ring around the circumferential surface of the bottom roller 120, and when the die-cutting roller 110 and the bottom roller 120 are installed on the base, the circular ring formed by the avoidance groove 121 corresponds to the axial position of the circular ring formed by the blade 111.

[0025] In some of the embodiments, the blade 111 extends circumferentially on the circumferential surface of the die-cutting roller 110 to form a circular ring shape; it is understandable that during the rotation of the die-cutting roller 110, part of the circular ring-shaped blade 111 is located in the avoidance groove 121 to achieve cutting of the material strip.

[0026] By opening an avoidance groove 121 on the bottom roller and at least partially extending the blade 111 into the avoidance groove 121, on the one hand, the bottom roller 120 can provide support for the material strip 200 during the cutting process to cooperate with the blade 111 to cut the material strip 200, and on the other hand, the avoidance groove 121 can provide space for the blade 111 to cut through the material strip, and the material strip 200 does not need to be provided with a knife pad material, thereby reducing costs.

[0027] In some embodiments, in combination Figure 1 and Figure 3 , Figure 3 Schematic diagram of a material strip processed by a die-cutting device according to an embodiment of the present invention. The die-cutting roller 110 is provided with a product knife group (not shown in the figure) extending in the circumferential direction, and the product knife group is used to cut the material strip 200 to form a preset product, and the blades 111 are arranged on both sides of the product knife group in the axial direction. Specifically, a plurality of blades 111 are provided, and the blades 111 are arranged at intervals along the axial direction of the die-cutting roller 110, and the blades 111 cut the material strip 200 along the blade cutting line 210. The bottom roller 120 is provided with an avoidance groove 121 corresponding to the plurality of blades 111. The product knife group is arranged on the circumferential surface of the die-cutting roller 110 between two blades 111 arranged at intervals. It can be understood that the product knife group can cut a product contour on the material strip 200 along the product knife group cutting line 220, so that further processing of the material strip 200 can be achieved.

[0028] In some embodiments, the die-cutting roller 110 is provided with multiple product knife groups, the multiple product knife groups are arranged along the axial direction, and a blade 111 is provided between any two adjacent product knife groups. It can be understood that the multiple product knife groups and the multiple blades 111 can work together and can simultaneously process multiple parts of the material strip 200 distributed along the width direction, thereby improving production efficiency.

[0029] Specifically, refer to Figure 1 and Figure 3 In another embodiment, three blades 111 are provided, and the three blades 111 are arranged at intervals along the axial direction of the die-cutting roller 110, and two intervals are formed on the circumferential surface of the die-cutting roller 110; the bottom roller 120 is provided with avoidance grooves 121 corresponding to the three blades 111; two groups of product knife groups are provided, which are respectively provided on the circumferential surface between the above two intervals; the three blades 111 cooperate with the two groups of product knife groups to cut the material strip 200 along the three blade cutting lines 210 and the two groups of product knife group cutting lines 220. It should be understood that if the axial length of the die-cutting roller 110 and the bottom roller 120 allows, other numbers of blades 111 and product knife groups can also be selected.

[0030] In some embodiments, a plurality of blades 111 are provided, and the plurality of blades 111 are arranged at intervals along the axial direction, a plurality of avoidance grooves 121 are provided, and the plurality of avoidance grooves 121 are arranged at intervals along the axial direction, and the number of blades 111 and avoidance grooves 121 is the same and corresponds to each other. It is understandable that the plurality of blades 111 arranged at intervals along the axial direction can work together and can simultaneously cut a plurality of portions of the material strip 200 distributed along the width direction, so as to improve production efficiency. Specifically, referring to Figure 1 There are two blades 111 and two avoidance grooves 121, respectively. The two blades 111 are arranged at intervals along the axial direction on the circumferential surface of the die-cutting roller 110, and the two avoidance grooves 121 are arranged at intervals on the circumferential surface of the bottom roller 120, and the two avoidance grooves 121 are respectively opposite to the two blades 111.

[0031] In some embodiments, in combination Figure 1, the circumferential surface of the die-cutting roller 110 and the circumferential surface of the bottom roller 120 enclose a processing space 130 through which the supply tape 200 passes, and the size of the processing space 130 is adapted to the thickness of the tape 200. It can be understood that the tape 200 can pass through the processing space 130 without undergoing a significant deformation, so the processing space 130 can reduce the risk of the tape 200 being squeezed and damaged by the die-cutting roller 110 and the bottom roller 120. Specifically, the circumferential surface of the die-cutting roller 110 at both ends of the axial direction expands in the direction of increasing the circumferential radius, thereby forming an annular step 150 at both ends of the die-cutting roller 110, the circumferential surface radius of the annular step 150 is greater than the circumferential surface radius of the die-cutting roller 110, and the circumferential surface of the bottom roller 120, the circumferential surface of the die-cutting roller 110 and the two annular steps 150 together enclose the processing space 130. It should be understood that the annular step 150 can also be selected to be provided on the bottom roller 120.

[0032] In some embodiments, in combination Figure 1 and Figure 2 , Figure 2 for Figure 1 The enlarged schematic diagram of the partial structure shown in FIG. The blade 111 is spaced apart from the bottom wall 170 and the side wall 160 of the avoidance groove 121. In this way, the blade 111 does not contact the avoidance groove 121, thereby reducing the risk of interference of the blade 111. Specifically, the width of the avoidance groove 121 is greater than the width of the blade 111, and the depth of the avoidance groove 121 is greater than the depth of the blade 111 that can be inserted into the avoidance groove 121.

[0033] Reference Figure 1 and Figure 2 In some embodiments, the depth H of the blade 111 extending into the avoidance groove 121 is 1.5mm-2.5mm. Specifically, the depth H can be selected as 1.5mm, 1.7mm, 1.8mm, 2.1mm, 2.5mm, etc. In this way, the blade 111 can be of moderate length and can be adapted to the thickness of the material strip 200, so that the blade 111 can cut through the material strip 200. When the depth H is less than 1.5mm, the blade 111 is too short, which will cause the blade 111 to be unable to fully cut the material strip. When the depth H is greater than 2.5mm, the blade 111 is too long, and the blade 111 is prone to shaking, which will cause the blade 111 to contact the inner wall of the avoidance groove 121, thereby interfering.

[0034] Reference Figure 1In some other embodiments, the product knife group includes a plurality of knife units (not shown in the figure) arranged in an array, and there is a spacing distance between any two adjacent knife units. It can be understood that a plurality of knife units arranged at intervals along the axial direction can simultaneously process a plurality of parts distributed along the width direction of the material strip 200 during the processing process, and a plurality of knife units arranged at intervals along the circumferential direction can process the material strip 200 multiple times when the die-cutting roller 110 rotates one circle, thereby improving production efficiency. Specifically, a plurality of knife units are arranged on the circumferential surface of the die-cutting roller 110, a plurality of knife units arranged at intervals along the circumferential direction form a knife unit group, and a plurality of knife unit groups arranged at intervals along the axial direction form a knife unit array.

[0035] In some embodiments, the die-cutting device 100 includes a driving mechanism (not shown in the figure), which is connected to the die-cutting roller 110 and can drive the die-cutting roller 110 to rotate. It can be understood that the driving mechanism can provide power for the die-cutting device 100, thereby facilitating the die-cutting operation. Specifically, the driving mechanism is a rotary driver, and a gear (not shown in the figure) is provided on the handle-shaped structure 140 of the die-cutting roller 110. The driving end of the rotary driver is meshed with the gear, thereby driving the die-cutting roller 110 to rotate.

[0036] The die-cutting device of the present invention is described below. The die-cutting device of the present invention includes a feeding mechanism and the above-mentioned die-cutting device 100. The feeding mechanism is used to transfer the material strip 200 to the bottom roller 120. Specifically, the axial directions of the die-cutting roller 110 and the bottom roller 120 are perpendicular to the conveying direction of the material strip 200. By arranging the above-mentioned die-cutting device 100 on the die-cutting device, the material strip 200 does not need to be provided with a knife pad material, thereby reducing the cost.

[0037] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A die-cutting device, characterized in that: include: abutment; A die-cutting roller, rotatably connected to the base, the die-cutting roller is provided with a blade extending in a circumferential direction, and the blade is used to cut the outer shape of the material strip; The bottom roller is rotatably connected to the base and opposite to the die-cutting roller. The bottom roller is provided with an avoidance groove extending in the circumferential direction, and at least a part of the blade extends into the avoidance groove.

2. The die-cutting device according to claim 1, characterized in that: The die-cutting roller is provided with a product knife group extending in the circumferential direction, and the product knife group is used to cut the material strip to form a preset product. The knife edges are arranged on both sides of the product knife group in the axial direction.

3. The die-cutting device according to claim 2, characterized in that: There are multiple product knife groups, which are arranged axially, and the blades are arranged between any two adjacent product knife groups.

4. The die-cutting device according to claim 1, characterized in that: There are a plurality of blades arranged at intervals along the axial direction, there are a plurality of avoidance grooves arranged at intervals along the axial direction, and the number of blades is the same as that of avoidance grooves and they correspond one to one.

5. The die-cutting device according to claim 1, characterized in that: The circumferential surface of the die-cutting roller and the circumferential surface of the bottom roller enclose a processing space for the material strip to pass through.

6. The die-cutting device according to claim 1, characterized in that: The blade is spaced apart from the bottom wall and the side wall of the avoidance groove.

7. The die-cutting device according to claim 1, characterized in that: The depth of the blade extending into the avoidance groove is 1.5mm-2.5mm.

8. The die-cutting device according to claim 2, characterized in that: The product knife set comprises a plurality of knife units arranged in an array, and there is a spacing distance between any two adjacent knife units.

9. The die-cutting device according to claim 1, characterized in that: The die-cutting device comprises a driving mechanism, which is connected to the die-cutting roller and can drive the die-cutting roller to rotate.

10. A die-cutting device, characterized in that: It comprises a feeding mechanism and the die-cutting device according to any one of claims 1 to 9, wherein the feeding mechanism is used to transfer the material strip to the bottom roller.

Images