Die cutting device

Abstract

The embodiment of the invention provides a die cutting machining device which comprises a feeding roller, a die cutting device body and a die cutting device body, the feeding roller is provided with a limiting groove extending in the circumferential direction, the limiting groove is used for containing a film material, and the feeding roller can convey the film material in the conveying direction; and the die cutting roller is arranged on the downstream of the feeding roller, the die cutting roller is provided with a tool bit structure, and the tool bit structure corresponds to the limiting groove in the conveying direction so that the tool bit structure can cut the preset position of the film material. The limiting groove extending in the circumferential direction is formed in the feeding roller, the limiting groove is used for containing the film materials, high limiting precision is achieved, the film materials are not prone to displacement, and the risk of poor feeding shortage and the like is reduced; the tool bit structure is arranged on the die cutting roller, and due to the fact that the tool bit structure corresponds to the limiting groove in the conveying direction, the die cutting efficiency is improved. And the tool bit structure can cut the preset position of the film material, so that the generation of waste materials is effectively reduced, and the material utilization rate is improved.

Description

Technical Field

[0001] The invention relates to the technical field of die cutting, in particular to a die cutting device. Background Art

[0002] In the die-cutting industry, a knife roller is usually required to cut the film material into the required shape and size. In the existing process, a limit ring or other structure is usually used to limit the film material, but the limit ring has a low limit accuracy, which can easily cause the film material to shift, resulting in material shortage (the film material leaves the cutting position), or excessive waste generated by cutting, resulting in low material utilization. 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 processing device, which has a high positioning accuracy for film materials, reduces the generation of waste materials, and improves the material utilization rate.

[0004] An embodiment of the present invention provides a die-cutting processing device, which includes: a feed roller, which is provided with a limit groove extending in the circumferential direction, the limit groove is used to accommodate a film material, and the feed roller can convey the film material along the conveying direction; a die-cutting roller, which is arranged downstream of the feed roller, and the die-cutting roller is provided with a cutter head structure, and in the conveying direction, the cutter head structure corresponds to the limit groove so that the cutter head structure can cut the preset position of the film material.

[0005] The die-cutting processing device provided in the embodiment of the present invention has at least the following beneficial effects: By providing a limiting groove extending in the circumferential direction on the feed roller, the limiting groove accommodates the film material and has a higher limiting accuracy. The film material is not easily displaced, thereby reducing the risk of defects such as material shortage. At the same time, a cutter head structure is arranged on the die-cutting roller. Since the cutter head structure corresponds to the limiting groove in the conveying direction, the cutter head structure can cut the film material at a preset position, thereby effectively reducing the generation of waste material and improving material utilization.

[0006] In an embodiment of this implementation, the limit groove includes a first side wall and a second side wall relative to each other, and the tool head structure includes a first die-cutting knife and a second die-cutting knife. The preset position for the first die-cutting knife to cut the film material is defined as a first position, and the preset position for the second die-cutting knife to cut the film material is defined as a second position. The first position is at a first distance from the first side wall, and the second position is at a second distance from the second side wall. Both the first distance and the second distance are less than the preset value.

[0007] In an embodiment of this implementation, the limiting groove includes a bottom wall, the bottom wall connects the first side wall and the second side wall, the bottom wall forms a first angle with the first side wall, the bottom wall forms a second angle with the second side wall, and the first angle and the second angle are both obtuse angles.

[0008] In an example of this implementation manner, the first distance and the second distance are equal.

[0009] In an example of this implementation manner, the limiting grooves are connected end to end to form an annular groove.

[0010] In an example of this implementation manner, the depth of the limiting groove is less than the thickness of the film material.

[0011] In an embodiment of this implementation manner, there are multiple limit grooves, and the multiple limit grooves are arranged in sequence along the axial direction of the feeding roller. There are multiple cutter heads, and the multiple cutter heads are arranged in a one-to-one correspondence with the multiple limit grooves.

[0012] In one embodiment of this embodiment, the die-cutting processing device includes a loading mechanism and a loading roller, the loading mechanism is used to convey the base film to the loading roller, the loading roller is opposite to the feeding roller and a pressing area is formed therebetween, the feeding roller can deliver the film material roll to the pressing area, and press the film material and the base film together with the loading roller to form a composite film.

[0013] In an embodiment of this implementation, the die-cutting processing device includes a film tearing mechanism, which is arranged between the feeding roller and the die-cutting roller. The film material includes a stacked main material and a protective film. The feeding roller adheres the side of the main material facing away from the protective film to the base film, and the film tearing mechanism is used to tear off the protective film.

[0014] In an example of this implementation, the die-cutting processing device includes a film-sticking mechanism, which is arranged between the film-tearing mechanism and the die-cutting roller, and is used to stick a dust-proof film to the side of the main material facing away from the base film.

[0015] 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

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 is a schematic diagram of a die-cutting processing device according to an embodiment of the present invention; Figure 2 yes Figure 1Schematic diagram of the die-cutting processing device when processing film materials.

[0017] Figure 3 yes Figure 1 An enlarged schematic diagram of region I; Figure 4 is a schematic diagram of a feed roller in another embodiment of the present invention; Figure 5 is a schematic diagram of a feed roller in another embodiment of the present invention; Figure 6 is a schematic diagram of a die-cutting device according to another embodiment of the present invention; Figures 7a to 7d is through Figure 6 Schematic diagram of the changes in the product during processing by the die-cutting device.

[0018] Reference numerals: Die-cutting processing device 100; feeding roller 10; limiting groove 101; first side wall 1011; second side wall 1012; bottom wall 1013; die-cutting roller 20; cutter head structure 21; first die-cutting knife 211; second die-cutting knife 212; feeding mechanism 30; feeding roller 40; film tearing mechanism 50; film sticking mechanism 60; film material 200; main material 210; protective film 220; base film 300; dust-proof film 400; composite film 500; conveying direction 91. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, examples of which 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 orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated 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, and do not indicate or imply 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] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0024] In the related art, a limiting ring is set on the feed roller to limit the direction of the film material, thereby achieving the purpose of limiting. However, due to the existence of installation accuracy and manufacturing accuracy, and the axial displacement of the limiting ring during use, this structure has a relatively low limiting accuracy, and the film material is prone to displacement, resulting in defects such as material shortage. In order to reduce the occurrence of defects such as material shortage, larger-sized film materials are usually used for die-cutting processing, so that even if the film material is slightly displaced, there will still be no shortage of material. However, this will bring new problems. Due to the large size of the film material, too much waste is generated during the die-cutting process, and the material utilization rate is too low.

[0025] See also Figure 1 and Figure 2 , Figure 1 Schematic diagram of a die-cutting device 100 according to an embodiment of the present invention; Figure 2 yes Figure 1 Schematic diagram of the die-cutting processing device 100 when processing a film material 200. The embodiment of the present invention provides a die-cutting processing device 100, and the die-cutting processing device 100 includes a feed roller 10 and a die-cutting roller 20. The feed roller 10 is provided with a limiting groove 101 extending in the circumferential direction, and the limiting groove 101 is used to accommodate the film material 200. The feed roller 10 can convey the film material 200 along the conveying direction 91. The die-cutting roller 20 is arranged downstream of the feed roller 10, and the die-cutting roller 20 is provided with a cutter head structure 21. In the conveying direction 91, the cutter head structure 21 corresponds to the limiting groove 101, so that the cutter head structure 21 can cut the preset position of the film material 200.

[0026] Specifically, the extending direction of the limiting groove 101 is perpendicular to the axial direction of the feed roller 10. When the film material 200 is accommodated in the limiting groove 101, the film material 200 abuts against the inner wall of the limiting groove 101 to limit the relative position of the film material 200 and the feed roller 10. The conveying direction 91 is perpendicular to the axial direction of the feed roller 10.

[0027] It can be understood that in the conveying direction 91, the cutter head structure 21 corresponds to the limiting groove 101, so that the direction of the film material 200 in the limiting groove 101 can pass through the cutter head structure 21, and the cutter head structure 21 can cut the preset position of the film material 200. Specifically, the preset position of the film material 200 cut by the cutter head structure 21 can be determined according to the actual product requirements. The preset position can be selected as a position on the film material 200 that is spaced a certain distance from the upper edge, such as a position on the film material 200 that is 0.88 mm away from the upper edge. In this way, if the part of the film material 200 below the preset position is used as a product, the part of the upper side of the preset position with a width of 0.88 mm is waste.

[0028] It is understandable that, since the limiting groove 101 is directly opened on the feed roller 10, it is less affected by the installation accuracy and manufacturing accuracy, and there is no offset, so the position accuracy of the limiting groove 101 can be well guaranteed, so that the limiting groove 101 can better limit the direction of the film material 200. In this embodiment, in order to further improve the limiting accuracy, the feed roller 10 and the die-cutting roller 20 are arranged on the same frame, and both are rotatably connected to the frame to ensure the relative position of the feed roller 10 and the die-cutting roller 20.

[0029] By providing a limiting groove 101 extending in the circumferential direction on the feeding roller 10, the limiting groove 101 accommodates the film material 200 and has a high limiting accuracy. The film material 200 is not easily displaced, thereby reducing the risk of defects such as material shortage. At the same time, a cutter head structure 21 is arranged on the die-cutting roller 20. Since the cutter head structure 21 corresponds to the limiting groove 101 in the conveying direction 91, the cutter head structure 21 can cut the preset position of the film material 200, thereby effectively reducing the generation of waste material and improving material utilization.

[0030] In this embodiment, the feed roller 10 and the die-cutting roller 20 are respectively connected to the driving motor, so that under the drive of the driving motor, the feed roller 10 and the die-cutting roller 20 can respectively rotate around their own axes to achieve feeding and cutting.

[0031] In one embodiment of this implementation, please refer to Figures 1 to 3 , Figure 3 yes Figure 1The enlarged schematic diagram of the I area. The limiting groove 101 includes a first side wall 1011 and a second side wall 1012 opposite to each other, and the tool head structure 21 includes a first die cutter 211 and a second die cutter 212. The preset position where the first die cutter 211 cuts the film material 200 is defined as the first position, and the preset position where the second die cutter 212 cuts the film material 200 is defined as the second position, and the first position is the first side wall 1011. The first position has a first distance D1 with the first side wall 1011, and the second position has a second distance D2 with the second side wall 1012, and the first distance D1 and the second distance D2 are both less than the preset value.

[0032] It can be understood that part of the film material 200 between the first position and the first side wall 1011 is used for subsequent product processing, while part of the film material 200 between the first position and the first side wall 1011 and part of the film material 200 between the second position and the second side wall 1012 are waste materials. By setting the first distance D1 and the second distance D2 to be less than the preset value, the generation of waste materials can be effectively reduced and the material utilization rate can be improved.

[0033] In one embodiment of this implementation, please refer to Figure 2 and Figure 3 , the preset value range is 0.5mm-0.96mm. It can be understood that when the preset value is greater than 0.96mm, the proportion of waste is too high and the material utilization rate is too low; when the preset value is less than 0.5mm, material shortage is prone to occur. Such a setting can reduce the proportion of waste and effectively reduce the occurrence of defects such as material shortage.

[0034] Specifically, the preset value may be 0.5 mm, 0.65 mm, 0.88 mm, 0.96 mm, etc. In this embodiment, the first distance D1 and the second distance D2 are equal, and are both 0.88 mm.

[0035] In one embodiment of this implementation, please refer to Figure 2 and Figure 4 , Figure 4 1 is a schematic diagram of a feed roller 10 in another embodiment of the present invention. The limiting groove 101 includes a bottom wall 1013, the bottom wall 1013 connects the first side wall 1011 and the second side wall 1012, the bottom wall 1013 and the first side wall 1011 form a first angle, the bottom wall 1013 and the second side wall 1012 form a second angle, and the first angle and the second angle are both obtuse angles. In this way, the first side wall 1011 and the second side wall 1012 can guide the film material 200 so that the film material 200 can enter the limiting groove 101 and fully fit with the bottom wall 1013.

[0036] In the present embodiment, the first angle and the second angle are equal, and the range of values ​​is 95°-105°. It is understandable that when the first angle and the second angle are less than 95°, it is difficult for the film material 200 to fully fit with the bottom wall 1013, and the film material 200 may be curled, thereby causing the subsequent material to shift. When the first angle and the second angle are greater than 105°, the film material 200 is easy to slide along the first side wall 1011 or the second side wall 1012, which also causes the subsequent material to shift. By limiting the range of values ​​of the first angle and the second angle to 95°-105°, it can be ensured that the film material 200 can fully fit with the bottom wall 1013, and the film material 200 can be fully limited by the limiting groove 101.

[0037] In one embodiment of this implementation, please refer to Figure 2 and Figure 5 , Figure 5 1 is a schematic diagram of a feed roller 10 in another embodiment of the present invention. The first side wall 1011 and the second side wall 1012 are configured as relatively concave curved surfaces, so that the film material 200 can slide down along the first side wall 1011 and the second side wall 1012 until it is fully fitted with the bottom wall 1013, thereby ensuring the limiting effect of the limiting groove 101.

[0038] In one embodiment of this implementation, please refer to Figure 1 and Figure 2 The limiting groove 101 is connected end to end to form an annular groove. Specifically, the limiting groove 101 is an annular groove in the shape of a circular ring. Such a configuration facilitates continuous die cutting processing.

[0039] In one embodiment of this implementation, please refer to Figure 1 and Figure 2 , the depth H of the limiting groove 101 is less than the thickness of the film material 200. Such a configuration is beneficial to improving the limiting effect of the limiting groove 101.

[0040] In one embodiment of this implementation, please refer to Figure 1 and Figure 2 There are multiple limiting grooves 101, which are sequentially arranged along the axial direction of the feeding roller 10, and there are multiple cutter heads, which are arranged one by one corresponding to the multiple limiting grooves 101. Such an arrangement can effectively improve the die cutting processing efficiency.

[0041] In this embodiment, the number of the limiting grooves 101 and the cutter head structures 21 are both 3, the 3 limiting grooves 101 are arranged in sequence and spaced apart along the axial direction of the feed roller 10, and the 3 cutter head structures 21 correspond to the 3 limiting grooves 101 respectively and are arranged at corresponding positions of the die-cutting roller 20.

[0042] In one embodiment of this implementation, please refer to Figure 6 , Figure 7a and Figure 7b , Figure 6 is a schematic diagram of a die-cutting device 100 according to another embodiment of the present invention; Figures 7a to 7d is through Figure 6 Schematic diagram of the change of the product during the processing of the die-cutting processing device 100 in FIG. The die-cutting processing device 100 includes a feeding mechanism 30 and a feeding roller 40. The feeding mechanism 30 is used to transfer the base film 300 to the feeding roller 40. The feeding roller 40 is opposite to the feeding roller 10 and a pressing area is formed between them. The feeding roller 10 can roll the film material 200 to the pressing area, and press the film material 200 and the base film 300 together with the feeding roller 40 to form a composite film 500. In this way, the feeding roller 10 and the feeding roller 40 press the base film 300 and the film material 200, which can ensure the relative position of the film material 200 and the base film 300 is accurate. At the same time, the film material 200 and the base film 300 are pressed together to form a composite film 500, so as to facilitate the subsequent die-cutting process.

[0043] In one embodiment of this implementation, please refer to Figure 6 , Figure 7b , Figure 7c and Figure 7d The die-cutting device 100 includes a film-tearing mechanism 50 and a film-sticking mechanism 60. The film-tearing mechanism 50 is arranged between the feeding roller 10 and the die-cutting roller 20. The film material 200 includes a stacked main material 210 and a protective film 220. The feeding roller 40 sticks the side of the main material 210 facing away from the protective film 220 to the base film 300. The film-tearing mechanism 50 is used to tear off the protective film 220. The film-sticking mechanism 60 is arranged between the film-tearing mechanism 50 and the die-cutting roller 20. The film-sticking mechanism 60 is used to stick the dust-proof film 400 to the side of the main material 210 facing away from the base film 300. Specifically, the side of the main material 210 facing away from the protective film 220 is sticky to facilitate adhesion with the base film 300. It can be understood that when multiple film materials 200 are die-cut at the same time (for example Figure 1 The die-cutting device 100 shown in the figure performs die-cutting on three film materials 200 at the same time). The protective films 220 of each film material 200 are relatively independent and difficult to be torn off at the same time by using tape. By setting the film-tearing mechanism 50 and the film-sticking mechanism 60, the film-tearing structure tears off the protective film 220, and the film-sticking mechanism 60 sticks the dust-proof film 400 to the main material 210. Compared with the protective film 220, the whole dust-proof film 400 is easier to tear off later, thereby reducing the process difficulty.

[0044] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A die cutting device, characterized in that: include: A feeding roller is provided with a limiting groove extending in a circumferential direction, wherein the limiting groove is used to accommodate the film material, and the feeding roller can convey the film material along a conveying direction; The die-cutting roller is arranged downstream of the feeding roller. The die-cutting roller is provided with a cutter head structure. In the conveying direction, the cutter head structure corresponds to the limiting groove so that the cutter head structure can cut the preset position of the film material.

2. The die-cutting device according to claim 1, characterized in that: The limiting groove includes a first side wall and a second side wall relative to each other, and the tool head structure includes a first die-cutting knife and a second die-cutting knife. The preset position where the first die-cutting knife cuts the film material is defined as a first position, and the preset position where the second die-cutting knife cuts the film material is defined as a second position. The first position is at a first distance from the first side wall, and the second position is at a second distance from the second side wall. Both the first distance and the second distance are less than a preset value.

3. The die cutting device according to claim 2, characterized in that: The limiting groove includes a bottom wall, the bottom wall connects the first side wall and the second side wall, the bottom wall forms a first angle with the first side wall, the bottom wall forms a second angle with the second side wall, and the first angle and the second angle are both obtuse angles.

4. The die cutting device according to claim 2, characterized in that: The first distance and the second distance are equal.

5. The die cutting device according to claim 1, characterized in that: The limiting grooves are connected end to end to form an annular groove.

6. The die cutting device according to claim 1, characterized in that: The depth of the limiting groove is less than the thickness of the film material.

7. The die cutting device according to claim 1, characterized in that: There are multiple limit grooves, which are arranged in sequence along the axial direction of the feeding roller. There are multiple cutter heads, which are arranged in one-to-one correspondence with the limit grooves.

8. The die-cutting device according to claim 1, characterized in that: The die-cutting processing device includes a loading mechanism and a loading roller, wherein the loading mechanism is used to transfer the base film to the loading roller, the loading roller is opposite to the feeding roller and a pressing area is formed therebetween, the feeding roller can roll the film material to the pressing area and press the film material and the base film together with the loading roller to form a composite film.

9. The die-cutting device according to claim 8, characterized in that: The die-cutting processing device includes a film tearing mechanism, which is arranged between the feeding roller and the die-cutting roller. The film material includes a stacked main material and a protective film. The feeding roller adheres the side of the main material facing away from the protective film to the base film, and the film tearing mechanism is used to tear off the protective film.

10. The die cutting device according to claim 9, characterized in that: The die-cutting processing device comprises a film sticking mechanism, which is arranged between the film tearing mechanism and the die-cutting roller, and is used for sticking a dustproof film to a side of the main material facing away from the base film.

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