Printing pad with identification lines

Abstract

The utility model relates to the technical field of printing, and discloses a printing pad with identification lines, which comprises a foam substrate, a PET (polyethylene terephthalate) film is arranged on the upper end face of the foam substrate, the identification lines distributed in a grid shape are arranged on the upper end face of the PET film, and a protective layer is coated on the surface of each identification line. At least one positioning groove is formed in the bottom end of the foam base, the positioning groove is formed in the length direction of the foam base in a penetrating mode, and a magnetic strip is embedded in the positioning groove; the magnetic strips are embedded in the positioning grooves, so that after the printing pad is wound on the surface of the printing cylinder, the printing pad can be aligned through attraction of magnetic force at the two ends of the magnetic strips, the printing pad is guided to be accurately attached in the axial direction of the printing cylinder in the actual attaching process, the marking lines are arranged on the surface of the PET film, and the marking lines not only can provide size reference, but also can be used for guiding the printing pad to be attached to the surface of the printing cylinder. And clear alignment reference marks can be visually provided for operators to assist in judging mounting angles and longitudinal and transverse positions, so that double auxiliary positioning is realized by matching with a magnetic strip.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, and more specifically, to a printing pad with marking lines. Background Technology

[0002] With the continuous development of the printing industry, the requirements for printing precision and efficiency are increasing. When printing equipment performs multiple batches, high-speed, and continuous operations, it often requires the replacement or maintenance of the printing pads on the printing cylinders. As a crucial transitional structure connecting the printing plate and the impression cylinder, the printing pad directly affects the uniformity of printing pressure, the clarity of the image, and the stability of equipment operation. Especially in high-precision printing processes such as offset and gravure printing, even higher technical requirements are placed on the bonding precision and stability of the pads. Multi-layered printing pads with foam as the base and PET film lamination are widely used in the market to meet the needs of different printing processes.

[0003] Currently, most printing gaskets are applied manually to the roller surface, relying on the operator's experience to judge the placement and angle. However, existing gaskets lack positioning aids and clear alignment references or limiting devices, making them prone to placement deviations and uneven tilting. This can lead to loosening and bulging of the gaskets during printing, directly affecting the accuracy of image registration and color uniformity, and reducing print quality.

[0004] Therefore, there is a need to provide a printed backing with marking lines to solve the problem that existing printed backings are prone to causing placement deviations. Utility Model Content

[0005] The main objective of this invention is to provide a printed backing with marking lines, which aims to solve the technical problems mentioned in the background section.

[0006] The present invention adopts the following technical solution:

[0007] A printed backing with marking lines, comprising:

[0008] A foam substrate, wherein a PET film is disposed on the upper surface of the foam substrate, and a grid-like distribution of marking lines is disposed on the upper surface of the PET film, and a protective layer is coated on the surface of the marking lines;

[0009] At least one positioning groove is provided at the bottom end of the foam substrate. The positioning groove extends through the length of the foam substrate. A magnetic strip is embedded in the positioning groove, and the bottom end of the magnetic strip is flush with the bottom end of the foam substrate.

[0010] Further, a pressure distribution film is arranged between the foam base and the PET film, the pressure distribution film is fixedly connected with the foam base, the pressure distribution film is provided with a plurality of hexagonal holes, and the plurality of hexagonal holes are arranged in an array.

[0011] Further, a heat control film is arranged between the pressure distribution film and the PET film, the heat control film is provided with a hexagonal prism matched with the hexagonal hole, and the bottom end of the hexagonal prism abuts against the foam base.

[0012] Further, the surface of the protective layer is embedded with a microcapsule, and the microcapsule is used for filling liquid siloxane.

[0013] Further, the bottom end of the foam base is fixedly connected with two symmetrically arranged adhesive films, the adhesive films are arranged along the length direction of the foam base, and the two adhesive films are flush with opposite sides in the width direction of the foam base.

[0014] Further, the bottom end of the two adhesive films is detachably connected with release films, the two release films respectively extend away from each other, and the release film is curvedly arranged towards one end of the PET film.

[0015] Further, a plurality of locking pieces are fixedly connected with opposite sides in the width direction of the foam base, and the plurality of locking pieces are also fixedly connected with the PET film, so that the foam base, the pressure distribution film, the heat control film and the PET film are fixedly connected.

[0016] Beneficial effects:

[0017] The utility model provides a kind of printing pad with identification line, by being provided with positioning groove in the bottom end of foam base, and embedding magnetic stripe in positioning groove, so that printing pad can be aligned by the magnetic force of both ends of magnetic stripe after being coiled on the surface of printing cylinder, guide printing pad to be accurately fitted along the axial direction of printing cylinder in actual mounting process, avoid the deviation or skew caused by artificial error, also can realize preliminary fixation by the magnetic force between magnetic stripe and metal cylinder. Further, the upper end surface of foam base is covered with PET film, and identification line is arranged on the surface of PET film in grid distribution, the surface of identification line is coated with protective layer, can prevent the peeling of pattern due to friction in printing process, identification line can provide size reference, and also provide clear alignment reference mark for operator in vision, auxiliary judgment mounting angle and longitudinal and transverse position, so as to realize double auxiliary positioning with magnetic stripe. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure schematic diagram of the printing pad with identification line of the utility model;

[0019] Figure 2 is Figure 1 an enlarged structural schematic view of A in the middle;

[0020] Figure 3 is a bottom structural schematic view of the printed gasket with the identification line of the utility model;

[0021] Figure 4 is Figure 3 an enlarged structural schematic view of B in the middle;

[0022] Figure 5 is an exploded schematic view of the printed gasket with the identification line of the utility model;

[0023] Wherein: 1, foam base; 101, positioning groove; 2, PET film; 3, identification line; 4, magnetic stripe; 5, pressure distribution film; 501, hexagonal hole; 6, thermal control film; 601, hexagonal prism; 7, adhesive film; 8, release film; 9, locking piece.

[0024] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0025] It should be understood that the specific embodiments described herein are merely intended to explain the utility model, and are not intended to limit the utility model.

[0026] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0027] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation" "link" "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, can be direct connection, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element's mutual action relation.For ordinary skilled person in the art, the above-mentioned term can be understood according to the specific meaning in the utility model.

[0028] In the utility model, unless another explicit provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the other features between them.Moreover, the first feature is "on" "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature is "under" "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.

[0029] Reference Figures 1 to 5 The utility model proposes a kind of printed gasket with identification line, comprising: foam base 1, the upper end surface of the foam base 1 is provided with PET film 2, the upper end surface of the PET film 2 is provided with identification line 3 of grid distribution, the surface of the identification line 3 is coated with protective layer;

[0030] At least one positioning slot 101 is opened in the bottom end of the foam base 1, the positioning slot 101 is through setting along the length direction of the foam base 1, magnetic stripe 4 is embedded in the positioning slot 101, the bottom end of the magnetic stripe 4 is flush with the bottom end of the foam base 1.

[0031] In the above embodiment, printed gasket includes foam base 1, foam base 1 is preferably made of soft and closed-cell foam material with certain resilience, to ensure that gasket can provide good pressure buffering performance and printing adaptability after being attached to the surface of printing cylinder.PET film 2 is arranged on the upper end surface of the foam base 1, the PET film 2 is selected from polyester film with excellent wear resistance and dimensional stability, and is firmly attached to the foam base 1 by hot pressing or composite process, to strengthen the surface structure integrity of gasket, improve pressure resistance and prolong service life.

[0032] In order to improve the installation accuracy and size cutting efficiency of the printed liner, a grid-shaped identification line 3 is arranged on the upper end surface of the PET film 2. The identification line 3 can be formed by screen printing, laser etching or ink coating, and its pattern structure includes a square grid network that is interlaced vertically and horizontally. The specific pattern can be customized according to actual operation habits. The surface of the identification line 3 is further coated with a transparent protective layer made of solvent-resistant and wipe-resistant materials, which can effectively prevent the identification line from peeling off or blurring due to equipment friction, human contact or cleaning operation during printing, thereby ensuring the long-term clear visibility of the identification line 3. The identification line 3 provides clear alignment reference for the operator visually, and can clearly judge the current installation angle and vertical and horizontal position during liner installation, effectively assisting manual alignment operation and reducing human error.

[0033] In addition, at least one positioning groove 101 is arranged at the bottom end of the foam substrate 1 along its length direction. In this application, two symmetrical positioning grooves 101 are arranged on the opposite sides of the foam substrate 1. The positioning groove 101 is a strip-shaped through structure, and its cross-section can be rectangular, arc-shaped or "T"-shaped, which is used for embedding the magnetic strip 4. The magnetic strip 4 is made of flexible magnetic material, such as rubber magnet or soft ferromagnetic composite tape. The thickness of the magnetic strip 4 matches the depth of the positioning groove 101, and the bottom end of the magnetic strip 4 is flush with the bottom end of the foam substrate 1 after installation, which ensures that the flatness of the liner is not affected during installation. The magnetic strip 4 can be magnetically attracted to the surface of the printing cylinder during installation, providing preliminary physical fixation force. When the printed liner is not completely installed, it has preliminary positioning ability, which prevents the liner from sliding or skewing due to its own weight or improper operation during installation. At the same time, the magnetic strip 4 is arranged in a penetrating manner along the length direction, which can realize automatic alignment through the self-attraction of the opposite ends of the magnetic strip 4 during winding.

[0034] In actual production and application, the adhesive used for bonding the PET film and the foam substrate is an environmentally friendly adhesive. The PET film and the foam substrate in the printed liner can be arranged with the same width, or the left and right widths of the PET film can be larger than the width of the foam substrate, or one side of the PET film can protrude from the foam substrate and the other side can be flush with the foam substrate. The relative width of the PET film and the foam substrate is set according to actual needs, for example, the left and right widths of the PET film are 5 cm larger than the width of the foam substrate, or one side is flush and the other side protrudes 5 cm, or one side protrudes 5 cm and the other side protrudes 2.5 cm, and so on. In addition, the PET film and the foam substrate in the printed liner can be arranged in a fixed connection manner and cannot be torn apart, or they can be arranged in a fixed manner and can be torn apart.

[0035] In summary, in this embodiment, the printed pad is aligned and initially fixed by magnetic strip 4, and then the marking line 3 is used to assist in alignment and serve as a mounting reference. The two work together to form a dual positioning system, which effectively solves the problems of positional deviation and angular skew that easily occur during the mounting process of printed pads in the prior art, and significantly improves mounting accuracy, operating efficiency and consistency of printing quality.

[0036] refer to Figure 2 , Figure 4 and Figure 5 In one embodiment, a pressure distribution membrane 5 is provided between the foam substrate 1 and the PET film 2. The pressure distribution membrane 5 is fixedly connected to the foam substrate 1. The pressure distribution membrane 5 has a plurality of hexagonal holes 501, and the plurality of hexagonal holes 501 are arranged in an array.

[0037] In the above embodiment, a pressure distribution membrane 5 is disposed between the foam substrate 1 and the PET film 2 to optimize the overall stress distribution performance of the pad. The pressure distribution membrane 5 is preferably made of a high-strength, high-toughness composite material, and its large end face has a plurality of hexagonal holes 501, which are uniformly arranged in an array. The pressure distribution membrane 5 is firmly connected to the foam substrate 1 by bonding or hot pressing, thereby forming a stable multilayer structure. During the printing process, the hexagonal holes 501 can efficiently distribute the load under pressure through their honeycomb arrangement, avoiding stress concentration in local areas of the pad, improving the pad's compressive strength and recovery performance, and enhancing the uniformity and clarity of the printing quality.

[0038] In one example, a heat control film 6 is disposed between the pressure distribution film 5 and the PET film 2. The heat control film 6 is provided with a hexagonal prism 601 that mates with the hexagonal hole 501. The bottom end of the hexagonal prism 601 abuts against the foam substrate 1.

[0039] In the above embodiment, a thermal control film 6 is disposed between the pressure distribution film 5 and the PET film 2. The surface of the thermal control film 6 is provided with several flat hexagonal prisms 601 that mate with hexagonal holes 501. The bottom ends of the hexagonal prisms 601 directly abut against the foam substrate 1. The thermal control film 6 is made of a thin film material with good thermal conductivity. Through the modular hexagonal prisms 601, it achieves real-time conduction and dispersion of local heat in the pressure distribution film 5 area. During printing, uneven equipment pressure may lead to localized temperature rise problems. The thermal control film 6 can effectively and evenly transfer temperature to different areas of the pad through the hexagonal prism 601 structure, avoiding structural deformation caused by overheating. Furthermore, the bottom ends of the hexagonal prisms 601 abut against the foam substrate 1, forming a "point-to-surface" contact conduction mechanism, which can further improve the pressure distribution and heat management performance of the pad, ensuring the stability of the thermal and mechanical environment during printing.

[0040] In an embodiment, the surface of the protective layer is embedded with microcapsules for filling liquid siloxane.

[0041] In the above embodiment, the surface of the protective layer is embedded with microcapsules for filling liquid siloxane. The microcapsules endow the protective layer with self-repairing function. When the pad is slightly mechanically damaged during printing, the microcapsules will release the internal liquid siloxane after breaking, thus forming a repair layer covering the wound and restoring the integrity of the protective layer. The self-repairing feature not only prolongs the service life of the protective layer in complex environments, but also protects the underlying structure (such as the PET film 2 and the foam base 1) from external pollution or mechanical wear, thereby improving the long-term applicability of the printing pad.

[0042] In an embodiment, the bottom end of the foam base 1 is fixedly connected with two symmetrically arranged adhesive films 7, which are arranged along the length direction of the foam base 1, and the two adhesive films 7 are flush with the opposite two sides in the width direction of the foam base 1.

[0043] In the above embodiment, the bottom end of the foam base 1 is fixedly connected with two symmetrically arranged adhesive films 7, which are arranged along the length direction of the foam base 1, and the two adhesive films 7 are flush with the opposite two sides in the width direction of the foam base 1. The adhesive film 7 has certain adhesion and can be directly attached to the outer surface of the printing cylinder to provide a fixed adhesive layer. In actual operation, the adhesive film 7 can improve the stability of the pad attachment, especially under high-speed printing or long-term use conditions, which can effectively prevent the pad from shifting or sliding, and at the same time enhance the contact firmness of the pad with the surface of the cylinder.

[0044] In an embodiment, the bottom end of each of the two adhesive films 7 is detachably connected with a release film 8, the two release films 8 respectively extend away from each other, and the release film 8 is curvedly arranged towards one end of the PET film 2.

[0045] In the above embodiment, the bottom end of the adhesive film 7 is detachably connected with the release film 8. The release film 8 extends in the direction away from each other, i.e. extends to the both ends of the width of the foam base 1, and is arranged in a curved state towards one end of the PET film 2, i.e. towards the upper position of the printing pad as a whole, so that after the printing pad is attached to the printing cylinder during actual use, the operator can quickly tear off the release film 8 during the installation process, thereby activating the adhesion performance of the adhesive film 7, greatly simplifying the adjustment steps in the pad attachment process, and the engineering operation is faster and more accurate in control. At the same time, it effectively avoids the problem that the adhesion of the adhesive film 7 is affected by dust or pollution during storage and transportation, making the installation process of the printing pad more efficient and reliable.

[0046] Reference Figure 1 and Figure 2In an embodiment, the foam base 1 is fixedly connected with a plurality of locking members 9 on both sides in the width direction, and the plurality of locking members 9 are also fixedly connected with the PET film 2, so that the foam base 1, the pressure distribution film 5, the thermal control film 6 and the PET film 2 are fixedly connected.

[0047] In the above embodiment, the foam base 1 is fixedly connected with a plurality of locking members 9 on both sides in the width direction, and the plurality of locking members 9 are also fixedly connected with the PET film 2, so that the foam base 1, the pressure distribution film 5, the thermal control film 6 and the PET film 2 are fixedly connected.

[0048] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is based on the content of the present application and the drawings, is also included in the patent protection range of the present application.

Claims

1. A printed gasket having an identification line, characterized in that, The utility model relates to a kind of identification card, including: Foam base (1), the upper end surface of the foam base (1) is provided with PET film (2), the upper end surface of the PET film (2) is provided with identification line (3) distributed in grid, the surface of the identification line (3) is coated with protective layer; At least one positioning slot (101) is opened in the bottom end of the foam base (1), the positioning slot (101) is provided through along the length direction of the foam base (1), magnetic stripe (4) is embedded in the positioning slot (101), the bottom end of the magnetic stripe (4) is flush with the bottom end of the foam base (1).

2. A printed gasket having an identification line according to claim 1, characterized in that Pressure distribution film (5) is arranged between the foam base (1) and the PET film (2), the pressure distribution film (5) is fixedly connected with the foam base (1), the pressure distribution film (5) is provided with a plurality of hexagonal holes (501), a plurality of hexagonal holes (501) are arranged in array.

3. A printed gasket having an identification line according to claim 2, characterized in that Heat control film (6) is arranged between the pressure distribution film (5) and the PET film (2), the heat control film (6) is provided with hexagonal prism (601) matched with the hexagonal hole (501), the bottom end of the hexagonal prism (601) is abutted on the foam base (1).

4. The printed gasket having an identification line according to claim 1, wherein, The surface of the protective layer is embedded with microcapsules, and the microcapsules are used to fill liquid siloxane.

5. The printed gasket having an identification line according to claim 1, wherein, The bottom end of the foam base (1) is fixedly connected with two symmetrically arranged adhesive films (7), the adhesive films (7) are arranged along the length direction of the foam base (1), and the two adhesive films (7) are flush with the opposite sides in the width direction of the foam base (1) respectively.

6. A printed gasket having an identification line according to claim 5, wherein, The bottom end of the two adhesive films (7) is detachably connected with release film (8), the two release films (8) extend in directions away from each other respectively, and one end of the release film (8) towards the PET film (2) is warped.

7. A printed gasket having an identification line according to claim 3, wherein A plurality of locking members (9) are fixedly connected to the opposite sides in the width direction of the foam base (1), and the plurality of locking members (9) are also fixedly connected with the PET film (2), so as to fixedly connect the foam base (1), the pressure distribution film (5), the heat control film (6) and the PET film (2).

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