A full-rotation flexographic die-cutting machine

Abstract

This invention relates to the field of flexographic die-cutting equipment technology, and discloses a full-rotation flexographic die-cutting machine, including a machine base. The machine base is equipped with an ink cartridge, an anilox roller, a printing plate roller, and an impression roller. A printing plate is mounted on the surface of the printing plate roller. An annular seat is disposed inside the printing plate roller, and a push rod is slidably inserted into the annular seat. A push plate is mounted on one end of the push rod, and the printing plate is disposed on the push plate. A tension spring is sleeved on the push rod, and the other end of the tension spring is connected to the annular seat. A support is mounted on the machine base, and a fixed shaft is detachably mounted on the support. A protrusion is provided on the fixed shaft, and the end of the push rod away from the push plate intermittently contacts the protrusion. The push plate pushes up a rubber pad, and the curvature of the printing plate disposed on the rubber pad decreases synchronously, ensuring that the curvature of the printing plate and the thicker roll material is consistent. This facilitates further full contact between the printing plate and the roll material, preventing issues such as missing or light-colored areas.

Description

Technical Field

[0001] This invention relates to the field of flexographic die-cutting equipment technology, specifically to a full-rotation flexographic die-cutting machine. Background Technology

[0002] When the full-rotary flexographic die-cutting machine is working, the roll material is first stably released through the unwinding mechanism, while the tension control system ensures uniform material tension. Then the material enters the multi-color flexographic printing unit, where the ink is evenly transferred to the material surface through the cooperation of the flexible printing plate and the anilox roller to complete color or monochrome printing. After printing, the material passes through the drying system to quickly cure the ink and prevent smudging. The dried material enters the rotary die-cutting unit, where it is continuously die-cut by the high-speed rolling of the customized circular blade roller and the pressure roller. The finished roll material after die-cutting is neatly wound up by the rewinding mechanism, and can be further slit or processed.

[0003] In existing technologies, for thick roll materials, the high stiffness of the roll material makes it difficult to be flattened by the printing roller, resulting in the printing plate and the surface of the roll material only being in partial contact (such as the peak of the roll material), while the valleys or rigid protruding areas cannot be in contact, and the ink cannot be fully transferred, forming white gaps or light and inaccurate areas; therefore, it does not meet the existing requirements, so we propose a full-rotation flexographic die-cutting machine. Summary of the Invention

[0004] This invention provides a full-rotation flexographic die-cutting machine. This machine utilizes a pusher plate to lift the printing plate upwards, ensuring full contact between the printing plate and the roll material. This guarantees sufficient ink transfer onto the roll material, preventing white gaps or light areas. It solves the problem mentioned in the background section of the prior art, where, for thicker roll materials, the high stiffness of the roll material makes it difficult to flatten by the printing rollers, resulting in only partial contact between the printing plate and the roll material surface (such as the peaks of the roll material), while the valleys or rigid protruding areas cannot make contact, leading to insufficient ink transfer and the formation of white gaps or light areas.

[0005] To achieve the above objectives, this disclosure provides a full-rotation flexographic die-cutting machine, including a machine base, on which an ink cartridge, an anilox roller, a printing plate roller, and an impression roller are arranged. A printing plate is mounted on the surface of the printing plate roller, and an annular seat is arranged inside the printing plate roller. A push rod is slidably inserted into the annular seat. A push plate is mounted on one end of the push rod, and the printing plate is placed on the push plate. A tension spring is sleeved on the push rod, and the other end of the tension spring is connected to the annular seat.

[0006] A support is installed on the base, and a fixed shaft is detachably installed on the support. A protrusion is provided on the fixed shaft, and the end of the push rod away from the push plate intermittently contacts the protrusion.

[0007] Optionally, multiple sets of push rods and push plates are provided, and rubber pads are provided on the sides of multiple push plates. The rubber pads are arc-shaped, and the printing plate is mounted on the rubber pads.

[0008] Optionally, a limiting groove is provided on the fixed shaft, and a pair of protrusions are installed on the push rod. When the printing plate is filled with pigment, the protrusions slide and engage in the limiting groove.

[0009] Optionally, the support is provided with a keyway, and the fixed shaft is provided with a key block for engaging with the keyway;

[0010] The fixed shaft has a slot, the support has a fixed plate, a rod is slidably inserted into the fixed plate, a wedge block is installed at the bottom end of the rod, a compression spring is sleeved on the rod, and the other end of the compression spring is connected to the fixed plate.

[0011] Optionally, the printing plate roller is provided with a sealing cavity, the rubber pad is disposed inside the sealing cavity, the printing plate roller is provided with an air bladder, and a one-way valve is installed at both the air inlet and the air outlet of the air bladder. A pipe is connected to the one-way valve at the air inlet of the air bladder, and the other end of the pipe is located in the sealing cavity.

[0012] Optionally, multiple pairs of arc-shaped plates are installed inside the printing roller, and an arc-shaped slider is slidably installed in one pair of arc-shaped plates. A pressure plate is installed on the side of the arc-shaped slider near the airbag, and the pressure plate is connected to the compression end of the airbag.

[0013] Optionally, a rotating plate is hinged to the side of the arc-shaped slider near the fixed shaft. A torsion spring is provided on the rotating plate. One end of the torsion spring is connected to the rotating plate, and the other end of the torsion spring is connected to the arc-shaped slider. A lever for abutting against the rotating plate is fixedly installed on the fixed shaft.

[0014] Optionally, a baffle for sealing is installed at one end of the sealing cavity, and a sealing plug is detachably installed on the baffle.

[0015] Optionally, the baffle is provided with a guide tube, which is located directly above the ink cartridge and communicates with the sealing cavity. The bottom surface of the sealing cavity is inclined, and one end of the guide tube is located at the lowest end of the sealing cavity.

[0016] Optionally, an L-shaped plate is hinged to the baffle, the L-shaped plate is disposed adjacent to the guide tube, a second sealing plug is disposed on the side of the L-shaped plate near the guide tube, a second torsion spring is disposed on the L-shaped plate, one end of the second torsion spring is connected to the L-shaped plate, and the other end of the second torsion spring is connected to the baffle.

[0017] A groove is provided on the fixed shaft, and the groove is correspondingly provided with the push rod. An abutment block is installed at the bottom of the push plate, and the abutment block is located above the L-shaped plate.

[0018] With the above technical solution, the full-rotation flexographic die-cutting machine provided in this disclosure, when in use: the end of the push rod away from the push plate abuts against the surface of the fixed shaft. When the printing plate rotates to the printing position of the roll material, the push rod abuts against the convex strip, causing the push rod to move upward. The push rod drives the push plate to press the printing plate firmly onto the roll material, thereby ensuring that the ink on the printing plate is fully transferred to the surface of the roll material. At the same time, the push plate pushes up the rubber pad, causing local deformation of the rubber pad, reducing the local curvature of the rubber pad. Furthermore, the curvature of the printing plate set on the rubber pad is reduced synchronously, ensuring that the bending degree of the printing plate and the thicker roll material is consistent, which is conducive to further full contact between the printing plate and the roll material, and preventing the occurrence of white leakage or light color.

[0019] After the rotating plate and the deflector plate come into contact, the airbag is compressed. When the airbag reaches its maximum compression, the rotating plate overcomes the elastic force of the first torsion spring and deflects. The airbag rebounds and returns to its original state. The one-way valve at the air inlet of the airbag opens, and the gas inside the sealed cavity enters the airbag through the pipe. The air pressure inside the sealed cavity decreases, causing the ink in the gaps around the printing plate to flow into the sealed cavity under the action of the air pressure difference, preventing the ink in the gaps from contaminating the roll material.

[0020] In addition, the No. 2 sealing plug on the side of the L-shaped plate seals the guide tube. As the printing plate roller rotates, the push rod moves along the surface of the fixed shaft. When the push rod moves to the groove on the fixed shaft, the fixed shaft slides into the groove under the action of the tension spring. The push plate at the end of the fixed shaft moves synchronously. The abutment block installed at the bottom of the push plate abuts against the L-shaped plate, causing the L-shaped plate to rotate. The L-shaped plate releases the seal on the guide tube, the guide tube opens, and the ink accumulated inside the sealed cavity flows along the inclined surface at the bottom of the sealed cavity into the guide tube, and is then collected by the guide tube into the ink cartridge directly below, realizing the automatic cleaning of the ink in the sealed cavity.

[0021] Other features and advantages of the present disclosure will be described in detail in the following detailed description. Attached Figure Description

[0022] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a schematic cross-sectional view of the printing plate roller of the present invention.

[0025] Figure 3This is a schematic diagram showing the structure of the printing plate curvature variation of the present invention.

[0026] Figure 4 This is a schematic diagram of the installation structure of the rubber pad of the present invention.

[0027] Figure 5 This is a schematic cross-sectional view of the arc-shaped slider of the present invention.

[0028] Figure 6 This is a schematic diagram of the fixed shaft structure of the present invention.

[0029] Figure 7 Appendix to this invention Figure 1 A magnified structural diagram of point A in the middle.

[0030] Figure 8 This is a schematic diagram of the installation structure of the baffle of the present invention.

[0031] Figure 9 This is a schematic diagram of the structure of the baffle and L-shaped plate of the present invention.

[0032] Figure 10 This is a schematic cross-sectional view of the L-shaped plate of the present invention.

[0033] Figure 11 Appendix to this invention Figure 10 A magnified structural diagram at point B in the middle.

[0034] Explanation of reference numerals in the attached drawings: 101, base; 102, ink cartridge; 103, anilox roller; 104, printing plate roller; 105, impression roller; 106, printing plate; 201, annular seat; 202, push rod; 203, push plate; 204, rubber pad; 205, tension spring; 206, support; 207, fixed shaft; 208, protrusion; 301, limiting groove; 302, protrusion; 401, keyway; 402, key block; 403, slot; 404, fixing plate; 405, insert. Rod; 406, wedge block; 407, compression spring; 501, sealing cavity; 502, airbag; 503, one-way valve; 504, pipe; 505, arc plate; 506, arc slider; 507, pressure plate; 508, rotating plate; 509, first torsion spring; 510, lever; 601, baffle; 602, first sealing plug; 603, guide tube; 604, L-shaped plate; 605, second sealing plug; 606, second torsion spring; 607, contact block; 608, groove. Detailed Implementation

[0035] To make the above-described objects, features, and advantages of this disclosure more apparent and understandable, specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this disclosure. However, this disclosure can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this disclosure. Therefore, this disclosure is not limited to the specific embodiments disclosed below.

[0036] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. The terms "first" and "second" are used to distinguish one element from another and do not have sequential or importance. Furthermore, in the following description, when referring to the accompanying drawings, the same reference numerals in different drawings denote the same or similar elements, which will not be repeated here.

[0037] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0038] According to some embodiments of this disclosure, a full-rotary flexographic printing and die-cutting machine is provided, referenced. Figures 1 to 11As shown, the full-rotation flexographic die-cutting machine includes a base 101, on which are mounted an ink cartridge 102, an anilox roller 103, a printing plate roller 104, and an impression roller 105. A printing plate 106 is mounted on the surface of the printing plate roller 104. An annular seat 201 is located inside the printing plate roller 104. A push rod 202 is slidably inserted into the annular seat 201. A push plate 203 is mounted at one end of the push rod 202. The printing plate 106 is mounted on the push plate 203. A mounting plate is sleeved on the push rod 202. A tension spring 205 is connected at one end to an annular seat 201. A support 206 is installed on the base 101. A fixed shaft 207 is detachably installed on the support 206. A protrusion 208 is provided on the fixed shaft 207. The end of the push rod 202 away from the push plate 203 intermittently contacts the protrusion 208. When the push rod 202 contacts the protrusion 208, the push rod 202 moves upward. The push rod 202 drives the push plate 203 to press the printing plate 106 onto the roll material.

[0039] Thus, as the printing plate roller 104 rotates, the roll material moves between the printing plate roller 104 and the impression roller 105. The end of the push rod 202 away from the push plate 203 abuts against the surface of the fixed shaft 207. When the printing plate 106 rotates to the printing position of the roll material, the push rod 202 abuts against the convex strip 208, causing the push rod 202 to move upward. The push rod 202 drives the push plate 203 to press the printing plate 106 onto the roll material, thereby ensuring that the ink on the printing plate 106 is fully transferred to the surface of the roll material.

[0040] Please refer to Figure 4 Multiple sets of push rods 202 and push plates 203 are provided, and rubber pads 204 are provided on the sides of multiple push plates 203. The rubber pads 204 are arc-shaped. The printing plate 106 is mounted on the rubber pads 204. The rubber pads 204 themselves are elastic. When one of the push rods 202 comes into contact with the protrusion 208, the corresponding push plate 203 pushes the rubber pad 204 up, causing local deformation of the rubber pad 204 and reducing the local curvature of the rubber pad 204. Furthermore, the curvature of the printing plate 106 set on the rubber pad 204 is reduced simultaneously, ensuring that the printing plate 106 has sufficient contact with the thicker roll material. It should be noted that for thicker roll material, the elasticity of the roll material itself makes the roll material itself not easy to bend. The roll material will maintain a small curvature between the printing plate roller 104 and the impression roller 105. Therefore, reducing the local curvature of the printing plate 106 helps the printing plate 106 to have sufficient contact with the roll material.

[0041] Additionally, please refer to Figure 4A limiting groove 301 is provided on the fixed shaft 207, and a pair of protrusions 302 are installed on the push rod 202. When ink is added to the printing plate 106, the printing plate 106 rolls in contact with the anilox roller 103. In order to prevent the printing plate 106 from shifting during the contact process with the anilox roller 103, the protrusions 302 slide and engage in the limiting groove 301, thereby preventing the push rod 202, push plate 203, rubber pad 204 from moving with the printing plate 106, so that the ink is evenly applied to the surface of the printing plate 106.

[0042] Additionally, please refer to Figure 7 The support 206 has a keyway 401, and the fixed shaft 207 has a key block 402 for engaging with the keyway 401. The support 206 has a fixed plate 404, and the fixed shaft 207 has a slot 403. A rod 405 is slidably inserted into the fixed plate 404. A wedge block 406 is installed at the bottom end of the rod 405. A compression spring 407 is sleeved on the rod 405, and the other end of the compression spring 407 is connected to the fixed plate 404.

[0043] Therefore, when installing the fixed shaft 207, simply push the fixed shaft 207 into the keyway 401. The engagement of the key block 402 with the keyway 401 prevents the fixed shaft 207 from rotating during operation. After the fixed shaft 207 reaches the installation position, the wedge block 406 engages with the slot 403, thereby preventing the fixed shaft 207 from moving along its length. When it is necessary to disassemble the fixed shaft 207, lift the insert rod 405 upwards, and the wedge block 406 will move out of the slot 403. Then, the fixed shaft 207 can be moved out in the opposite direction. Therefore, the installation and disassembly of the fixed shaft 207 is very simple.

[0044] It should be noted that for printing rolls of different thicknesses, the curvature of the rolls varies during printing. Therefore, the local curvature of the printing plate 106 should be adjusted according to the material of the roll. Specifically, different fixed shafts 207 can be replaced. The height of the convex strips 208 on different models of fixed shafts 207 is different. When the height of the convex strips 208 is higher, the push rod 202 should move upwards at a greater height when it contacts the convex strips 208. This makes the change in the curvature of the rubber pad 204 by the push plate 203 more obvious, thereby achieving adaptive adjustment for rolls of different materials. In the prior art, when printing on rolls of different materials, in order to ensure printing quality, it is usually necessary to replace both the printing plate 106 and the printing roller 104. However, this device only requires replacing the fixed shaft 207, which greatly saves the mold opening costs of the printing plate 106 and the printing roller 104.

[0045] Through the above technical solution, when the full-rotation flexographic die-cutting machine provided in this disclosure is in use, the end of the push rod 202 away from the push plate 203 abuts against the surface of the fixed shaft 207. When the printing plate 106 rotates to the printing position of the roll material, the push rod 202 abuts against the convex strip 208, causing the push rod 202 to move upward. The push rod 202 drives the push plate 203 to press the printing plate 106 firmly onto the roll material, thereby ensuring that the ink on the printing plate 106 is fully transferred to the surface of the roll material. At the same time, the push plate 203 pushes up the rubber pad 204, causing local deformation of the rubber pad 204 and reducing the local curvature of the rubber pad 204. Furthermore, the curvature of the printing plate 106 set on the rubber pad 204 is reduced synchronously, ensuring that the curvature of the printing plate 106 and the thicker roll material are consistent, which is conducive to further full contact between the printing plate 106 and the roll material and prevents the occurrence of white leakage or light color.

[0046] It should be noted that a motor is installed on the base 101 to drive the rotation of the anilox roller 103, the printing plate roller 104, and the impression roller 105. In addition, the base 101 is also equipped with an unwinding mechanism, a drying mechanism, a die-cutting mechanism, and a rewinding mechanism (the unwinding mechanism, drying mechanism, die-cutting mechanism, and rewinding mechanism are not shown in the figure). When the full-rotation flexographic die-cutting machine is working, the roll material is first stably unwound through the unwinding mechanism, and the tension control system ensures that the material tension is uniform. Then the material enters the multi-color flexographic printing unit, where the ink is evenly transferred to the material surface through the cooperation of the flexible printing plate and the anilox roller to complete the color or monochrome printing. After printing, the material passes through the drying mechanism to quickly solidify the ink and prevent smudging. The dried material enters the rotary die-cutting mechanism, where the die-cutting is completed continuously by the high-speed rolling of the customized circular blade roller and the pressure roller. The finished roll material after die-cutting is neatly rewound by the rewinding mechanism, and can be further slit or processed. The specific structure and principle of unwinding, drying, die-cutting, and rewinding are well known to those skilled in the art and will not be described in detail here.

[0047] It should be noted that, please refer to Figure 1 The ink cartridge 102 contains ink, and an ink roller is positioned above the ink cartridge 102. The bottom of the ink roller is immersed in ink, and the ink roller rolls in contact with the anilox roller 103. As a result, a uniform layer of ink is applied to the surface of the anilox roller 103. After the anilox roller 103 rolls in contact with the printing plate roller 104, a uniform layer of ink is applied to the printing plate 106 on the printing plate roller 104. The specific principle of applying ink to the printing plate 106 is existing technology and will not be elaborated here. In this solution, the printing plate 106 has gaps around its perimeter. Therefore, after prolonged use, some ink will accumulate in the gaps around the printing plate 106 (capillary action of the gaps). The ink in the gaps may contaminate the roll material.

[0048] Therefore, in some embodiments of this disclosure, reference is made to Figure 2As shown, a sealing cavity 501 is provided in the printing plate roller 104, a rubber pad 204 is provided inside the sealing cavity 501, an air bag 502 is provided inside the printing plate roller 104, a one-way valve 503 is installed at both the air inlet and the air outlet of the air bag 502, and a pipe 504 is connected to the one-way valve 503 at the air inlet of the air bag 502, with the other end of the pipe 504 located in the sealing cavity 501.

[0049] It should be noted that the airbag 502, in conjunction with a spring, can automatically return to its original shape after compression. In addition, when the airbag 502 is compressed, the gas in the airbag 502 is discharged through the one-way valve 503 at the air outlet. When the airbag 502 rebounds and returns to its original shape, the one-way valve 503 at the air inlet of the airbag 502 opens, and the gas inside the sealed cavity 501 enters the airbag 502 through the pipe 504. The air pressure inside the sealed cavity 501 decreases, causing the ink in the gaps around the printing plate 106 to flow into the sealed cavity 501 under the action of the air pressure difference, thus preventing the ink in the gaps from contaminating the roll material.

[0050] Additionally, please refer to Figure 4 The printing roller 104 has multiple pairs of arc plates 505 installed inside. An arc slider 506 is slidably installed in one pair of arc plates 505. A pressure plate 507 is installed on the side of the arc slider 506 near the air bag 502. The pressure plate 507 is connected to the compression end of the air bag 502.

[0051] Please refer to Figure 5 , Figure 6 A rotating plate 508 is hinged to the side of the arc-shaped slider 506 near the fixed shaft 207. A torsion spring 509 is provided on the rotating plate 508. One end of the torsion spring 509 is connected to the rotating plate 508, and the other end of the torsion spring 509 is connected to the arc-shaped slider 506. A lever 510 for contacting the rotating plate 508 is fixedly installed on the fixed shaft 207.

[0052] After the rotating plate 508 comes into contact with the lever 510, the airbag 502 is compressed. When the airbag 502 reaches its maximum compression, the rotating plate 508 overcomes the elastic force of the first torsion spring 509 and deflects, and the airbag 502 rebounds to its original position.

[0053] In addition, a baffle 601 for sealing is installed at one end of the sealing cavity 501. A first sealing plug 602 is detachably installed on the baffle 601. After the device has been working for a period of time, the first sealing plug 602 is manually opened to clean the ink inside the sealing cavity 501.

[0054] In some embodiments of this disclosure, reference is made to Figure 9 As shown, a guide tube 603 is provided on the baffle 601. The guide tube 603 is located directly above the ink cartridge 102. The guide tube 603 is connected to the sealing cavity 501. The bottom surface of the sealing cavity 501 is inclined, and one end of the guide tube 603 is located at the lowest end of the sealing cavity 501.

[0055] Additionally, an L-shaped plate 604 is hinged to the baffle 601. The L-shaped plate 604 is located adjacent to the guide pipe 603. A second sealing plug 605 is located on the side of the L-shaped plate 604 closest to the guide pipe 603. A second torsion spring 606 is located on the L-shaped plate 604. One end of the second torsion spring 606 is connected to the L-shaped plate 604, and the other end is connected to the baffle 601. A groove 608 is provided on the fixed shaft 207 (see...). Figure 6 The groove 608 is set in correspondence with the push rod 202, and the bottom of the push plate 203 is equipped with an abutment block 607, which is located above the L-shaped plate 604.

[0056] Therefore, under normal conditions, the second sealing plug 605 on the side of the L-shaped plate 604 seals the guide tube 603. As the printing plate roller 104 rotates, the push rod 202 moves along the surface of the fixed shaft 207. When the push rod 202 moves to the groove 608 on the fixed shaft 207, the fixed shaft 207 slides into the groove 608 under the action of the tension spring 205. The push plate 203 at the end of the fixed shaft 207 moves synchronously. The abutment block 607 installed at the bottom of the push plate 203 abuts against the L-shaped plate 604, causing the L-shaped plate 604 to rotate. The L-shaped plate 604 releases the seal on the guide tube 603, and the guide tube 603 opens. The ink accumulated inside the sealed cavity 501 flows along the inclined surface at the bottom of the sealed cavity 501 to the guide tube 603, and is collected by the guide tube 603 into the ink cartridge 102 directly below, realizing the automatic cleaning of the ink in the sealed cavity 501.

[0057] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0058] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0059] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A full-rotation flexographic die-cutting machine, comprising a base (101), wherein an ink cartridge (102), an anilox roller (103), a printing plate roller (104), and an impression roller (105) are disposed on the base (101), and a printing plate (106) is mounted on the surface of the printing plate roller (104), characterized in that: An annular seat (201) is provided inside the printing plate roller (104). A push rod (202) is slidably inserted on the annular seat (201). A push plate (203) is installed at one end of the push rod (202). The printing plate (106) is placed on the push plate (203). A tension spring (205) is sleeved on the push rod (202). The other end of the tension spring (205) is connected to the annular seat (201). A support (206) is installed on the base (101), and a fixed shaft (207) is detachably installed on the support (206). A protrusion (208) is provided on the fixed shaft (207), and the end of the push rod (202) away from the push plate (203) intermittently abuts against the protrusion (208). Multiple sets of push rods (202) and push plates (203) are provided, and rubber pads (204) are provided on the sides of multiple push plates (203). The rubber pads (204) are arc-shaped, and the printing plate (106) is mounted on the rubber pads (204). The printing plate roller (104) is provided with a sealing cavity (501), the rubber pad (204) is provided inside the sealing cavity (501), the printing plate roller (104) is provided with an airbag (502), and a one-way valve (503) is installed at both the air inlet and the air outlet of the airbag (502). A pipe (504) is connected to the one-way valve (503) at the air inlet of the airbag (502), and the other end of the pipe (504) is located in the sealing cavity (501).

2. The all-rotary flexographic die-cutting machine according to claim 1, characterized in that: The fixed shaft (207) is provided with a limiting groove (301), and a pair of protrusions (302) are installed on the push rod (202). When the printing plate (106) adds pigment, the protrusions (302) slide and engage in the limiting groove (301).

3. The all-rotary flexographic die-cutting machine according to claim 2, characterized in that: The support (206) is provided with a keyway (401), and the fixed shaft (207) is provided with a key block (402) for engaging with the keyway (401). The fixed shaft (207) has a slot (403), the support (206) has a fixed plate (404), the fixed plate (404) has a slidable insert rod (405), the bottom end of the insert rod (405) is equipped with a wedge block (406), the insert rod (405) is sleeved with a compression spring (407), and the other end of the compression spring (407) is connected to the fixed plate (404).

4. A full-rotation flexographic die-cutting machine according to claim 3, characterized in that: The printing roller (104) is equipped with multiple pairs of arc plates (505). An arc slider (506) is slidably installed in one pair of arc plates (505). A pressure plate (507) is installed on the side of the arc slider (506) near the airbag (502). The pressure plate (507) is connected to the compression end of the airbag (502).

5. A full-rotation flexographic die-cutting machine according to claim 4, characterized in that: The curved slider (506) is hinged to a rotating plate (508) on the side near the fixed shaft (207). A torsion spring (509) is provided on the rotating plate (508). One end of the torsion spring (509) is connected to the rotating plate (508), and the other end of the torsion spring (509) is connected to the curved slider (506). A lever (510) for abutting against the rotating plate (508) is fixedly installed on the fixed shaft (207).

6. A full-rotation flexographic die-cutting machine according to claim 5, characterized in that: A baffle (601) for sealing is installed at one end of the sealing cavity (501), and a sealing plug (602) is detachably installed on the baffle (601).

7. A full-rotation flexographic die-cutting machine according to claim 6, characterized in that: A guide tube (603) is provided on the baffle (601). The guide tube (603) is located directly above the ink cartridge (102). The guide tube (603) is connected to the sealing cavity (501). The bottom surface of the sealing cavity (501) is inclined, and one end of the guide tube (603) is located at the lowest end of the sealing cavity (501).

8. A full-rotation flexographic die-cutting machine according to claim 7, characterized in that: An L-shaped plate (604) is hinged to the baffle (601). The L-shaped plate (604) is located adjacent to the guide pipe (603). A second sealing plug (605) is provided on the side of the L-shaped plate (604) near the guide pipe (603). A second torsion spring (606) is provided on the L-shaped plate (604). One end of the second torsion spring (606) is connected to the L-shaped plate (604), and the other end of the second torsion spring (606) is connected to the baffle (601). The fixed shaft (207) has a groove (608) which is corresponding to the push rod (202). The bottom end of the push plate (203) is equipped with an abutment block (607) which is located above the L-shaped plate (604).

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