Flexible plate cold ironing frame

Abstract

The utility model discloses a flexible plate cold ironing frame which comprises a cold ironing plate, a plurality of cold ironing rollers are rotationally installed on the front face of the cold ironing plate through bearings, a first-stage air expansion shaft is rotationally installed on one side above the cold ironing rollers through a rotating shaft, and a second-stage air expansion shaft is rotationally installed on one side of the first-stage air expansion shaft. The tail end of the secondary air expansion shaft penetrates through the cold ironing plate and is fixedly connected with a magnetic powder clutch, and the magnetic powder clutch is fixedly installed on the outer wall of the back face of the cold ironing plate through a fixing bolt. The cold ironing frame can effectively avoid the loosening phenomenon in the cold ironing process, the using effect of the cold ironing frame is improved, and meanwhile the overall printing quality of a printing machine using the cold ironing frame is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a flexographic cold stamping frame. Background Art

[0002] Hot stamping is a common surface decoration method, mainly including hot stamping and cold stamping. Cold stamping usually uses ultraviolet curing varnish (also known as UV varnish) to transfer the hot stamping foil to the substrate surface. Cold stamping is a printing process that uses special glue (ink) to adhere the cold stamped anodized aluminum to the substrate surface, thereby achieving the hot stamping effect.

[0003] Chinese patent publication number CN103171270B discloses a satellite-type rotary cold stamping device, comprising a printing base wheel along which the main printing material rotates; a connecting block disposed on one edge of the printing base wheel, with a rotatable compounding wheel and a separating wheel fixed at each end of the connecting block, the compounding wheel and the separating wheel respectively securing the main printing material against the printing base wheel; the cold stamping device also comprises a cold stamping supply shaft and a cold stamping paper recovery shaft, wherein cold stamping paper is introduced from the cold stamping supply shaft into the compounding wheel, where it is compounded with the main printing material on the printing base wheel and then recovered onto the cold stamping paper recovery shaft via the separating wheel; the compounding wheel is an eccentric wheel with an adjustable distance from the printing base wheel; the cold stamping device also comprises a side plate, on which a first tension wheel and a second tension wheel are disposed, wherein the cold stamping paper is introduced into the compounding wheel via the first tension wheel, separated from the main printing material, and then recovered onto the cold stamping paper recovery shaft via the second tension wheel;

[0004] Although this cold stamping device can be used, since the positions of the first tension wheel and the second tension wheel are fixed, if the cold stamping paper becomes loose, it is impossible to re-tighten the cold stamping paper by adjusting the positions of the first tension wheel and the second tension wheel, which brings inconvenience to the stamping process. Utility Model Content

[0005] The purpose of the present invention is to provide a flexographic cold ironing frame to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a flexographic plate cold ironing frame, comprising a cold ironing plate, wherein a plurality of cold ironing rollers are rotatably mounted on the front side of the cold ironing plate through bearings, a first-level air expansion shaft is rotatably mounted on one side above the cold ironing roller through a rotating shaft, a second-level air expansion shaft is rotatably mounted on one side of the first-level air expansion shaft, the tail end of the second-level air expansion shaft passes through the cold ironing plate and is fixedly connected to a magnetic powder clutch, and the magnetic powder clutch is fixedly mounted on the outer wall of the back side of the cold ironing plate through fixing bolts.

[0007] Preferably, the tail end of the first-stage air expansion shaft passes through the cold ironing plate and is fixedly mounted with a driven gear.

[0008] Preferably, a servo motor is fixedly mounted on one side of the back of the cold ironing plate via fixing bolts, a driving gear is fixedly mounted on the output shaft of the servo motor, and the driving gear is meshedly connected with the driven gear.

[0009] Preferably, a first-stage rotating seat is fixedly installed on the back of the cold ironing plate and below the magnetic powder clutch, and a slide is provided below the cold ironing plate.

[0010] Preferably, a secondary rotating block is fixedly mounted on the upper surface of the front end of the slide, and the secondary rotating block is rotationally connected to the primary rotating seat via a rotating shaft.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model is provided with a primary air expansion shaft and a secondary air expansion shaft on the cold ironing frame. The air expansion shaft is a special winding and expansion shaft. Its working principle is to expand the surface of the shaft by filling air pressure, thereby tightening the paper or coiled material and keeping it stable during the processing. When the air expansion shaft is used in the utility model, the structural design of the inflation can effectively improve the tension of the paper during cold ironing.

[0013] Through the use characteristics of expansion or contraction, the tension force of the cold stamping process can be effectively and freely adjusted. In actual use, the slack phenomenon in the cold stamping process can be effectively avoided, thereby improving the use effect of the cold stamping frame of the utility model and improving the overall printing quality of the printing press using the utility model.

[0014] A magnetic powder clutch is installed on the cold ironing frame, which plays the role of cloth rolling, tension control and winding. The working state and torque of the clutch can be adjusted to ensure the stable operation of the printing press and the efficient performance of printing quality, thereby improving work efficiency and yield rate, effectively improving printing quality, and having a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front three-dimensional structure of the cold ironing frame according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the back of the cold ironing frame according to an embodiment of the present invention.

[0017] In the figure: 1. Cold ironing plate; 2. Cold ironing roller; 3. First-stage air expansion shaft; 4. Second-stage air expansion shaft; 5. Driven gear; 6. Servo motor; 7. Driving gear; 8. Magnetic powder clutch; 9. First-stage rotating seat; 10. Slide; 11. Second-stage rotating block. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0021] See also Figure 1-2 The utility model provides an embodiment of a flexographic plate cold ironing frame, comprising a cold ironing plate 1, a plurality of cold ironing rollers 2 being rotatably mounted on the front of the cold ironing plate 1 via bearings, a primary air expansion shaft 3 being rotatably mounted on one side of the cold ironing rollers 2 via a rotating shaft, and a secondary air expansion shaft 4 being rotatably mounted on one side of the primary air expansion shaft 3;

[0022] The utility model is provided with a first-level air expansion shaft 3 and a second-level air expansion shaft 4 on the cold ironing frame. The air expansion shaft is a special winding and expansion shaft. Its working principle is to expand the surface of the shaft by filling air pressure, thereby tightening the paper or coiled material and keeping it stable during the processing. When the air expansion shaft is used in the utility model, the structural design of the inflation can effectively increase the tension of the paper during cold ironing. The use characteristics of expansion or contraction can effectively and freely adjust the tension of the cold ironing process. In actual use, the phenomenon of loosening during the cold ironing process can be effectively avoided, thereby improving the use effect of the cold ironing frame of the utility model and improving the overall printing quality of the printing press of the utility model.

[0023] The tail end of the secondary air expansion shaft 4 passes through the cold ironing plate 1 and is fixedly connected to a magnetic powder clutch 8, which is fixed to the outer wall of the back of the cold ironing plate 1 by fixing bolts;

[0024] The magnetic powder clutch 8 uses the friction of magnetic powder to transmit and regulate torque. Its structure primarily consists of a housing, rotor, stator, and magnetic powder. When the rotor and stator rotate relative to each other, the magnetic powder creates a barrier and connection between them, enabling the clutch to transmit torque and control the magnitude and accuracy of the torque.

[0025] The working principle of the magnetic powder clutch 8 is to use the magnetic field to cause friction between the magnetic powder and the stator. Under the action of friction, the torque between the rotor and the stator is transmitted to the output shaft. According to the different structures and technical parameters of the magnetic powder clutch, the magnitude and accuracy of the torque can be controlled by adjusting the magnitude and direction of the magnetic field.

[0026] When the magnetic powder clutch 8 is used in the present invention, the magnetic powder clutch 8 plays the role of cloth rolling, tension control and winding. By adjusting the working state and torque size of the clutch, the stable operation of the printing press and the efficient performance of printing quality can be ensured, the work efficiency and yield rate can be improved, the printing quality can be effectively improved, and it has a good use effect.

[0027] In this embodiment, the tail end of the first-stage air expansion shaft 3 passes through the cold ironing plate 1 and is fixedly mounted with a driven gear 5;

[0028] In order to provide rotational power to the first-stage air expansion shaft 3, a servo motor 6 is fixedly installed on the back side of the cold ironing plate 1 through fixing bolts. The output shaft of the servo motor 6 is fixedly installed with a driving gear 7, which is meshed with the driven gear 5.

[0029] The servo motor 906 can drive the driven gear 905 to rotate through the driving gear 907, thereby driving the first-stage air expansion shaft 903 to rotate through the rotation of the driven gear 905, thereby ensuring a normal shaft rotation transmission effect.

[0030] In this embodiment, in order to facilitate the sliding installation of the cold ironing frame of the present invention on the machine body, a first-stage rotating seat 9 is fixedly installed on the back of the cold ironing plate 1 and below the magnetic powder clutch 8. A slide 10 is provided below the cold ironing plate 1. Through the provided slide 10, the entire utility model can be slidably installed on the adapted printing machine body during actual use.

[0031] A secondary rotating block 11 is fixedly mounted on the upper front end surface of the slide 10, and the secondary rotating block 11 is rotatably connected to the primary rotating seat 9 via a rotating shaft. By means of this rotatable connection, the cold ironing frame of the present invention can be driven by an external power structure to swing 90° left and right, thereby effectively improving the structural flexibility of the reversing frame of the present invention and improving the use effect.

[0032] Working principle: When the utility model is actually used, the utility model can be slidably installed in the working area of ​​the adapted printing press through the slide 10 to ensure normal cold stamping in the later stage. Those skilled in the art can use the flexographic cold stamping frame of the utility model through conventional methods;

[0033] The paper fed through the external conveying structure is passed through a plurality of cold stamping rollers 2 respectively. The cold stamping rollers 2 can complete the normal cold stamping printing process of the paper. At the same time, the utility model is provided with a first-level air expansion shaft 3 and a second-level air expansion shaft 4. When the air expansion shaft is used in the utility model, the structural design of the inflation can effectively increase the tension of the paper during cold stamping through the inflation or contraction characteristics. The tension of the cold stamping process can be effectively adjusted freely through the expansion or contraction characteristics. In actual use, the phenomenon of looseness in the cold stamping process mentioned in the background technology can be effectively avoided, thereby improving the use effect of the cold stamping frame of the utility model and improving the overall printing quality of the printing press using the utility model.

[0034] At the same time, by providing a magnetic powder clutch 8, the magnetic powder clutch 8 plays the role of cloth rolling, tension control and winding. By adjusting the working state and torque size of the clutch, the stable operation of the printing press and the efficient performance of printing quality can be guaranteed, the work efficiency and yield rate can be improved, the printing quality can be effectively improved, and it has a good use effect.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A flexographic cold ironing frame, comprising a cold ironing plate (1), characterized in that: The front side of the cold ironing plate (1) is rotatably mounted with a plurality of cold ironing rollers (2) via bearings, a first-stage air expansion shaft (3) is rotatably mounted on one side of the upper side of the cold ironing roller (2) via a rotating shaft, a second-stage air expansion shaft (4) is rotatably mounted on one side of the first-stage air expansion shaft (3), the tail end of the second-stage air expansion shaft (4) passes through the cold ironing plate (1) and is fixedly connected with a magnetic powder clutch (8), and the magnetic powder clutch (8) is fixedly mounted on the outer wall of the back side of the cold ironing plate (1) via fixing bolts.

2. The flexographic cold ironing frame according to claim 1, characterized in that: The tail end of the first-stage air expansion shaft (3) passes through the cold ironing plate (1) and is fixedly mounted with a driven gear (5).

3. The flexographic cold ironing frame according to claim 1, characterized in that: A servo motor (6) is fixedly mounted on one side of the back of the cold ironing plate (1) via fixing bolts, a driving gear (7) is fixedly mounted on the output shaft of the servo motor (6), and the driving gear (7) is meshedly connected with the driven gear (5).

4. The flexographic cold ironing frame according to claim 1, characterized in that: A first-stage rotating seat (9) is fixedly mounted on the back of the cold ironing plate (1) and below the magnetic powder clutch (8), and a slide (10) is provided below the cold ironing plate (1).

5. The flexographic cold ironing frame according to claim 4, characterized in that: A secondary rotating block (11) is fixedly mounted on the upper front surface of the slide (10), and the secondary rotating block (11) is rotatably connected to the primary rotating seat (9) via a rotating shaft.

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