Cutter roller die for die cutting of flexible materials and cutter roller die assembly

Abstract

The utility model relates to a cutter roller die and a cutter roller die assembly for die cutting of flexible materials, the cutter roller die comprises a mandrel and a roller body, the roller body is sleeved on the mandrel, and the roller body is provided with an annular blade, two protection steps, a bottom groove and an air suction hole; the annular blade is arranged on the outer side wall of the roller body, the two protection steps are arranged at the two ends of the roller body respectively, and the protection steps are used for supporting and protecting the annular blade; the height of the top of the bottom groove in the first direction is smaller than that of the tip of the annular blade in the first direction, the bottom groove is used for supporting the flexible material, and the roller body is provided with air suction holes in the axial direction and the radial direction, and the axial air suction holes and the radial air suction holes communicate with each other. According to the technical scheme, the bottom groove is formed and the depth of the bottom groove is reduced aiming at the condition that a cavity formed in the middle of the annular blade is small, that is, the height of the top of the bottom groove in the first direction is slightly lower than that of a tool nose of the annular blade in the first direction, and it is guaranteed that the annular blade normally works while the bottom groove supports the flexible material. By eliminating a cushion block, the problem that the cushion block is difficult to be mounted on the roller body through a screw when a cavity in the middle of the annular blade is small is solved, and the manufacturing cost and the machining difficulty are reduced.

Description

Technical Field

[0001] The utility model relates to the field of die-cutting of flexible materials, in particular to a cutting knife roller die and a cutting knife roller die assembly for die-cutting flexible materials. Background Art

[0002] like Figure 1 and Figure 2 As shown, when die-cutting the flexible material, a pad 22a is generally installed on the cutter roller die 100a, and the pad 22a is used to support the flexible material to prevent it from wrinkling during the transfer process, so as to ensure the smooth operation of the production line. In the prior art, the roller body 2a is sleeved on the core shaft 1a, and the pad 22a is detachably installed on the roller body 2a by screws 3a and is located in the middle of the annular blade 21a of the cutter roller die 100a. However, when the cavity between the annular blades 21a is small, it is difficult to add the pad 22a and increase the manufacturing cost of the cutter roller die 100a. Utility Model Content

[0003] In view of the above problems, the present application provides a cutting roller die for die-cutting flexible materials, which is used to solve the technical problem that when the cavity in the middle of the annular blade is small, it is difficult to add a pad and increase the manufacturing cost of the cutting roller die.

[0004] To achieve the above-mentioned objectives, in the first aspect, the inventor provides a cutting roller die for die-cutting flexible materials, comprising a core shaft and a roller body, the roller body being sleeved on the core shaft, and the roller body being provided with an annular blade, two protective steps, a bottom groove and an air suction hole; the annular blade is arranged on the outer side wall of the roller body, and the two protective steps are respectively arranged at both ends of the roller body, and the protective steps are used to support and protect the annular blade; the height of the top of the bottom groove along the first direction is lower than the height of the tip of the annular blade along the first direction, the bottom groove is used to support the flexible material, and the roller body is provided with air suction holes along the axial and radial directions, and the air suction holes arranged axially and radially are interconnected.

[0005] Different from the prior art, the technical solution of the present application aims at the case where the cavity in the middle of the annular blade is small, and sets a bottom groove and reduces the depth of the bottom groove, that is, the height of the top of the bottom groove along the first direction is slightly lower than the height of the tip of the annular blade along the first direction, so as to ensure that the bottom groove supports the flexible material while the annular blade works normally. By eliminating the pad, the problem that the pad is difficult to be installed on the roller body by screws when the cavity in the middle of the annular blade is small is solved, thereby reducing the manufacturing cost and processing difficulty.

[0006] As an implementation mode of the present utility model, the height difference between the top of the bottom groove and the tip of the annular blade along the first direction is 1 mm.

[0007] In this way, the bottom groove should, on the one hand, support the flexible material, prevent the product from wrinkling and transfer smoothly, and on the other hand, should not hinder the normal operation of the annular blade. Therefore, the height difference between the top of the bottom groove and the tip of the annular blade along the first direction is set to 1 mm. In some embodiments, the height of the bottom groove along the first direction and the width along the second direction can be determined according to actual conditions.

[0008] As an implementation mode of the utility model, a groove is provided between the bottom groove and the annular blade.

[0009] In this way, by providing the groove, a sufficient height difference between the bottom groove and the annular blade is ensured, which facilitates the subsequent grinding of the annular blade.

[0010] As an implementation mode of the present utility model, the height difference between the bottom of the groove and the tip of the annular blade along the first direction is 5-8 mm.

[0011] Thus, in order to ensure the strength and height of the bottom groove and the space required for subsequent grinding of the annular blade, the height difference between the bottom of the groove and the tip of the annular blade along the first direction is set to 5-8 mm.

[0012] As an implementation mode of the present utility model, the width of the groove along the second direction is 2-3 mm, wherein the second direction is perpendicular to the first direction.

[0013] Thus, to ensure that the bottom groove has sufficient width along the second direction and the space required for subsequent grinding of the annular blade, the width of the groove along the second direction is set to 2-3 mm. In some embodiments, the recessed height of the groove along the first direction and the recessed width along the second direction can be determined according to actual conditions.

[0014] As an implementation mode of the present utility model, the cross section of the groove is rectangular.

[0015] Thus, the groove has a rectangular cross section, and the rectangular structure is simple and convenient to process.

[0016] As an implementation mode of the present utility model, two ends of the top of the rectangle are in arc transition.

[0017] In this way, arc transitions are set at both ends of the top of the rectangle, that is, arc transitions are set at both ends of one side of the bottom groove supporting the flexible material, which makes it easier for the bottom groove to support the flexible material and is not easy to leave marks on the flexible material. At the same time, it can also reduce stress concentration.

[0018] To achieve the above objectives, in a second aspect, the inventor provides a cutting knife roller die assembly for die-cutting flexible materials, comprising any one of the cutting knife roller dies for die-cutting flexible materials provided by the inventor above.

[0019] Different from the prior art, the technical solution of the present application is that when die cutting is performed, when the annular blade is cutting, the bottom groove is used to support the flexible material to prevent it from wrinkling during the transfer process, thereby ensuring the smooth operation of the production line. The bottom groove is provided and its depth is reduced, which solves the problem that when the cavity in the middle of the annular blade is small, the pad is difficult to be installed on the roller body by screws, thereby reducing the manufacturing cost and processing difficulty.

[0020] The above-mentioned records related to the content of the utility model are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation method and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and shall not be considered as limitations of the present application.

[0022] In the drawings of the specification:

[0023] Figure 1 A schematic diagram of a cutting knife roller die of the background technology;

[0024] Figure 2 A schematic diagram of a bottom groove of the background technology installed on a roller body and two annular blades;

[0025] Figure 3 A schematic diagram of a cutting roller mold according to an embodiment of the present application;

[0026] Figure 4 A partially expanded view of a cutting roller according to an embodiment of the present application;

[0027] Figure 5 A schematic diagram of a cutting roller and two annular blades according to an embodiment of the present application;

[0028] Figure 6 Another schematic diagram of a cutting roller and two annular blades according to an embodiment of the present application.

[0029] The reference numerals in the above drawings are described as follows:

[0030] 100a-cutting knife roller mold; 1a-mandrel; 2a-roller body; 22a-pad; 21a-annular blade; 3a-screw; 100-cutting knife roller mold; 1-mandrel; 2-roller body; 21-annular blade; 22-bottom groove; 23-protective step; 24-air suction hole; 25-groove; X-first direction; Y-second direction. DETAILED DESCRIPTION

[0031] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0032] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0033] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0034] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0035] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0036] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0037] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0038] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0039] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0040] According to some embodiments of the present application, the present embodiment relates to a cutter roller die assembly for die-cutting flexible materials, including a cutter roller die 100 for die-cutting flexible materials.

[0041] The cutter roller assembly for die-cutting flexible materials also includes an adsorption roller, which is arranged below the cutter roller 100 and is used to adsorb the flexible material. The cutter roller 100 is used to cut the flexible material. The flexible material may be a diaper or a sanitary napkin, etc. Since the annular blade of each cutter roller 100 has a different direction, the cutter roller 100 needs to be replaced according to different flexible materials, and the bottom groove 22 will also be replaced to support the flexible material corresponding to the cutter roller 100.

[0042] Different from the prior art, the technical solution of the present application is that when die-cutting, when the annular blade 21 is cutting, the bottom groove 22 is used to support the flexible material to prevent it from wrinkling during the transfer process, thereby ensuring the smooth operation of the production line. The bottom groove 22 is provided and the depth of the bottom groove 22 is reduced, which solves the problem that when the cavity in the middle of the annular blade 21 is small, the pad 22a in the prior art is difficult to be installed on the roller body 2a by the screw 3a, thereby reducing the manufacturing cost and processing difficulty, and enhancing the overall strength of the bottom groove 22, thereby avoiding breakage and damage.

[0043] According to some embodiments of the present application, please refer to Figures 1 to 6 The present embodiment also relates to a cutting roller die 100 for die-cutting flexible materials, comprising a core shaft 1 and a roller body 2, wherein the roller body 2 is sleeved on the core shaft 1, and an annular blade 21, two protective steps 23, a bottom groove 22 and an air suction hole 24 are provided on the roller body 2; the annular blade 21 is provided on the outer side wall of the roller body 2, and the two protective steps 23 are respectively provided at both ends of the roller body 2, and the protective steps 23 are used to support and protect the annular blade 21; the height of the top of the bottom groove 22 along the first direction X is lower than the height of the tip of the annular blade 21 along the first direction X, and the bottom groove 22 is used to support the flexible material, and the roller body 2 is provided with air suction holes 24 along the axial and radial directions, and the air suction holes 44 provided in the axial and radial directions are interconnected.

[0044] The bottom groove 22 is directly arranged on the roller body 2, that is, it is integrally formed with the roller body 2. The bottom groove 22 protrudes from the roller body 2. The bottom groove 22 is not only arranged in the middle of the annular blade 21, but also on the roller body 2, except for the annular blade 21 and the protective step 23, the rest are all the bottom groove 22. However, the bottom groove 22 inside the annular blade 21 needs to have the function of supporting the product, and the height of the bottom groove needs to be reduced.

[0045] The two protective steps 23 are arranged with the same size, so as to ensure that the two protective steps 23 perform double protection and cooperation, thereby improving the overall stability and usability of the roller body 2.

[0046] Different from the prior art, the technical solution of the present application is to provide an integrally formed bottom groove 22 and reduce the depth of the bottom groove 22 in view of the situation that the cavity in the middle of the annular blade 21 is small, so that the height of the top of the bottom groove 22 along the first direction X is lower than the height of the tip of the annular blade 21 along the first direction X, so as to ensure that the bottom groove 22 supports the flexible material while the annular blade 21 works normally. By eliminating the pad 22a, the problem that the pad 22a is difficult to be installed on the roller body 2a by the screw 3a when the cavity in the middle of the annular blade 21 is small is solved, and the manufacturing cost and processing difficulty are reduced, while the overall strength of the bottom groove 22 is enhanced, thereby avoiding breakage and damage.

[0047] According to some embodiments of the present application, optionally, Figure 5 and Figure 6As shown, the height difference a between the top of the bottom groove 22 and the tip of the annular blade 21 along the first direction X is 1 mm.

[0048] Thus, the bottom groove 22 should support the flexible material, prevent the product from wrinkling and transfer smoothly, and should not hinder the normal operation of the annular blade 21. Therefore, the height difference a between the top of the bottom groove 22 and the tip of the annular blade 21 along the first direction X is set to 1 mm. In some embodiments, the height of the bottom groove 22 along the first direction X and the width along the second direction Y can be determined according to actual conditions.

[0049] According to some embodiments of the present application, optionally, Figure 5 and Figure 6 As shown, a groove 25 is provided between the bottom groove 22 and the annular blade 21 .

[0050] In this way, by providing the groove 25 , it is ensured that there is a sufficient height difference between the bottom groove 22 and the annular blade 21 , so as to facilitate the subsequent grinding of the annular blade 21 .

[0051] According to some embodiments of the present application, optionally, Figure 5 and Figure 6 As shown, the height difference b between the bottom of the groove 25 and the tip of the annular blade 21 along the first direction X is 5-8 mm.

[0052] Thus, in order to ensure the strength and height of the bottom groove 22 and the space required for subsequent grinding of the annular blade 21, the height difference b between the bottom of the groove 25 and the tip of the annular blade 21 along the first direction X is set to 5-8 mm.

[0053] According to some embodiments of the present application, optionally, Figure 5 As shown, the width c of the groove 25 along the second direction Y is 2-3 mm, wherein the second direction Y is perpendicular to the first direction X.

[0054] Thus, in order to ensure that the bottom groove 22 has sufficient width along the second direction Y and the space required for subsequent grinding of the annular blade 21, the width c of the groove 25 along the second direction Y is set to 2-3 mm. In some embodiments, the recessed height of the groove 25 along the first direction X and the recessed width along the second direction Y can be determined according to actual conditions.

[0055] According to some embodiments of the present application, optionally, Figure 5 and Figure 6 As shown, the cross section of the groove 25 is rectangular.

[0056] Thus, the cross section of the groove 25 is a rectangle, and the rectangular structure is simple and convenient to process.

[0057] According to some embodiments of the present application, optionally, Figure 6 As shown, the two ends of the top of the rectangle transition into arcs.

[0058] In this way, arc transitions are set at both ends of the rectangular top, that is, arc transitions are set at both ends of one side of the bottom groove 22 supporting the flexible material, which makes it easier for the bottom groove 22 to support the flexible material and is not easy to leave marks on the flexible material. At the same time, it can also reduce stress concentration.

[0059] The cutter roller die 100 for die-cutting flexible materials is provided with a bottom groove 22 and a groove 25, that is, the top of the bottom groove 22 is within 1 mm lower than the tip of the annular blade 21, which is used to support the flexible material and prevent wrinkles from occurring in the product; a groove 25 with a width of 2-3 mm and 5-8 mm lower than the tip of the annular blade 21 is provided along the periphery of the annular blade 21, which is convenient for subsequent multiple grinding of the annular blade 21. This solves the technical problem in the prior art that when the cavity in the middle of the annular blade 21 is small, it is difficult to add a cushion block 22a and increases the manufacturing cost of the cutter roller die 100a.

[0060] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A cutting roller die for die-cutting flexible materials, characterized in that: It comprises a core shaft and a roller body, wherein the roller body is sleeved on the core shaft, and the roller body is provided with an annular blade, two protective steps, a bottom groove and an air suction hole; The annular blade is arranged on the outer side wall of the roller body, and the two protective steps are respectively arranged at both ends of the roller body, and the protective steps are used to support and protect the annular blade; the height of the top of the bottom groove along the first direction is lower than the height of the tip of the annular blade along the first direction, and the bottom groove is used to support the flexible material, and the roller body is provided with the suction holes along the axial and radial directions, and the suction holes arranged axially and radially are interconnected.

2. The cutting roller die for die-cutting flexible materials according to claim 1, characterized in that: The height difference between the top of the bottom groove and the tip of the annular blade along the first direction is 1 mm.

3. The cutting roller die for die-cutting flexible materials according to claim 1, characterized in that: A groove is provided between the bottom groove and the annular blade.

4. The cutting roller die for die-cutting flexible materials according to claim 3, characterized in that: The height difference between the bottom of the groove and the tip of the annular blade along the first direction is 5-8 mm.

5. The cutting roller die for die-cutting flexible materials according to claim 3, characterized in that: The width of the groove along the second direction is 2-3 mm, wherein the second direction is perpendicular to the first direction.

6. The cutting roller die for die-cutting flexible materials according to claim 3, characterized in that: The cross section of the groove is rectangular.

7. The cutting roller die for die-cutting flexible materials according to claim 6, characterized in that: Both ends of the top of the rectangle are transitioned into arcs.

8. A cutting knife roller die assembly for die-cutting flexible materials, characterized in that: The invention comprises a cutting roller die for die-cutting flexible materials as claimed in any one of claims 1 to 7.

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