Gravure printing machine

Abstract

The invention provides a photogravure press which comprises a fixing frame, supporting legs, adjusting holes, a conveying belt mechanism, a rotatable locking auxiliary plate structure, an adjustable printing supporting frame structure, a rotatable adjusting printing frame structure, a supportable rotating printing cylinder structure, a rotatable elastic auxiliary cleaning roller structure and wing-shaped bolts. Supporting legs are fixed to the four corners of the bottom end of the fixing frame through bolts respectively. An adjusting hole is formed in the middle of the interior of the fixing frame. According to the gravure printing device, the fixing frame, the sliding holes, the T-shaped threaded rods, the first inclined T-shaped supporting pipes, the second sliding blocks, the gravure printing roller and the second inclined T-shaped supporting pipes are arranged in a matched mode, so that the first inclined T-shaped supporting pipes are in threaded connection to the front end and the rear end of the gravure printing roller correspondingly in the using process; and the intaglio printing roller can be replaced conveniently after the first inclined T-shaped supporting pipe and the intaglio printing roller are detached in the printing process.

Description

Technical Field

[0001] The invention belongs to the technical field of gravure printing machines, and in particular relates to a gravure printing machine. Background Art

[0002] The working principle of a conventional gravure printing machine is as follows: first, the surface of the plate roller engraved with images is stained with ink, then the plate roller rotates with the ink, the unnecessary ink on the exposed part of the plate roller surface is scraped off by a scraper and flows into the ink tray for reuse, and finally the elastic surface of the embossing roller rolls the printed material such as paper onto the surface of the plate roller, and the ink of the image part is clearly transferred to the printed material. The existing gravure printing machine includes a frame, an oven, a screw, a screw nut, a sprocket, a chain, a handle, a bracket, a slide, a spring, a support plate, an ink tray, a slide rail, a flange, a pad, a plate roller, and an embossing roller. This gravure printing machine is inconvenient to replace the gravure plate during use, and it is inconvenient to perform printing support work and adjust the gravure printing pressure during use. In addition, during the printing process, the material is easy to adhere to the surface of the gravure plate, affecting the work efficiency. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a gravure printing machine, which improves the gravure mechanism during use to facilitate the replacement of the gravure during work, and sets a printing support mechanism during use to prevent the conveying mechanism from becoming loose during printing and affecting the printing quality. At the same time, a pressure adjustment mechanism is set to facilitate the printing pressure adjustment work during printing, and an elastic cleaning mechanism is set during use to prevent the material from adhering to the surface of the gravure during printing and affecting the work efficiency.

[0004] A gravure printing machine comprises a fixed frame, wherein the four corners of the bottom end of the fixed frame are respectively fixed with support legs by bolts; an adjustment hole is opened in the middle position of the inner part of the fixed frame; a conveyor belt mechanism is arranged between the fixed frames, and the feature is that a rotatable locking auxiliary plate structure is respectively connected to the right side of the upper end of the fixed frame; an adjustable printing support frame structure is arranged inside the adjustment hole; a rotatable adjustable printing frame structure is arranged in the middle position of the upper end of the fixed frame, and a rotatable printing cylinder structure is connected between the rotatable adjustable printing frame structures; a A rotatable elastic auxiliary cleaning roller structure; wing bolts are threadedly penetrated on both sides of the middle position of the bottom end of the fixed frame; the rotatable locking auxiliary plate structure includes a fixed block, and the right end of the rotating plate is arranged at the middle position of the upper end of the fixed block; a locking bolt is penetrated inside the right end of the rotating plate; an arc plate is integrally arranged on the left end of the rotating plate; the rotatable adjustable printing frame structure includes a fixed frame, and a sliding hole is opened in the middle position of the interior of the fixed frame; a T-shaped threaded rod is threadedly penetrated in the middle position of the upper end of the fixed frame; a spring is sleeved on the lower part of the outer wall of the T-shaped threaded rod.

[0005] Preferably, the adjustable printing support frame structure includes a support plate, a first sliding block is bolted to the middle position of the front and rear ends of the support plate respectively; a support frame is bolted to the upper end of the support plate; and the interior of the support frame is filled with a silicone pad.

[0006] Preferably, the structure capable of supporting the rotating printing cylinder includes a first inclined T-shaped support tube, and the first inclined T-shaped support tube is respectively arranged on the inner wall of the second sliding block; the first inclined T-shaped support tube is respectively threadedly inserted into the internal middle position of the front and rear ends of the gravure printing roller and bolted; the first inclined T-shaped support tube and the second sliding block and the internal middle position of the gravure printing roller are penetrated by a second inclined T-shaped support tube.

[0007] Preferably, the rotatable elastic auxiliary cleaning roller structure includes a connecting frame, the front end of the connecting frame is bolted with a reduction motor; the outer wall of the output shaft of the reduction motor is bolted with a rotating roller; the outer wall of the rotating roller is fixed with elastic cleaning bristles in sequence from front to back.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] 1. In the present invention, the fixing frame, the sliding hole, the T-shaped threaded rod, the first inclined T-shaped support tube, the second sliding block, the gravure printing roller and the second inclined T-shaped support tube are arranged to cooperate with each other, which is conducive to the first inclined T-shaped support tube being threadedly connected to the front and rear ends of the gravure printing roller respectively during use, so that the gravure printing roller can be replaced after the first inclined T-shaped support tube and the gravure printing roller are disassembled during the printing process.

[0010] 2. In the present invention, the fixing frame, adjustment hole, conveyor belt mechanism, wing bolt, support plate, first sliding block, support frame and silicone pad are arranged in coordination with each other, which is conducive to rotating the wing bolt during the printing process, and then pushing the first sliding block to move during the rotation process, while driving the support plate to move, so as to facilitate the support work during the printing process and prevent the conveyor belt mechanism from loosening and affecting the printing quality.

[0011] 3. In the present invention, the fixed frame, the sliding hole, the first inclined T-shaped support tube, the second sliding block, the gravure printing roller, the connecting frame, the reduction motor, the rotating roller and the elastic cleaning brush bristles are arranged in coordination with each other, which is conducive to contacting the outer wall of the gravure printing roller through the elastic cleaning brush bristles during the printing process, thereby facilitating the cleaning of the outer wall of the gravure printing roller during the printing process.

[0012] 4. In the present invention, the first inclined T-shaped support tube, the second sliding block, the gravure printing roller, the fixed frame, the sliding hole, the T-shaped threaded rod and the spring are arranged in coordination with each other, which is conducive to rotating the T-shaped threaded rod during the printing process, and driving the second sliding block to rise and fall during the rotation process, while driving the first inclined T-shaped support tube and the gravure printing roller to rise and fall, thereby facilitating the purpose of adjusting the printing pressure during the printing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] Figure 2 It is a structural schematic diagram of the rotatable locking auxiliary plate structure of the present invention.

[0015] Figure 3 It is a structural schematic diagram of the adjustable printing support frame structure of the present invention.

[0016] Figure 4 It is a structural schematic diagram of the rotatable and adjustable printing frame structure of the present invention.

[0017] Figure 5 It is a schematic structural diagram of the structure of the supporting rotating printing cylinder of the present invention.

[0018] Figure 6 It is a structural schematic diagram of the rotatable elastic auxiliary cleaning roller structure of the present invention.

[0019] In the figure:

[0020] 1. Fixed frame; 2. Support leg; 3. Adjustment hole; 4. Conveyor belt mechanism; 5. Rotatable locking auxiliary plate structure; 51. Fixed block; 52. Rotating plate; 53. Locking bolt; 54. Arc plate; 6. Adjustable printing support frame structure; 61. Support plate; 62. First sliding block; 63. Support frame; 64. Silicone pad; 7. Rotatable adjustable printing frame structure; 71. Fixed frame; 72. Sliding hole; 73. T-shaped threaded rod; 74. Spring; 8. Supportable rotatable printing cylinder structure; 81. First inclined T-shaped support tube; 82. Second sliding block; 83. Gravure printing roller; 84. Second inclined T-shaped support tube; 9. Rotatable elastic auxiliary cleaning roller structure; 91. Connecting frame; 92. Speed ​​reducer motor; 93. Rotating roller; 94. Elastic cleaning brush; 10. Wing bolt. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] Embodiment 1: As attached Figure 1 and attached Figure 2As shown, a gravure printing machine comprises a fixed frame 1, a supporting leg 2, an adjustment hole 3, a conveyor belt mechanism 4, a rotatable locking auxiliary plate structure 5, an adjustable printing support frame structure 6, a rotatable adjustable printing frame structure 7, a supporting and rotating printing cylinder structure 8 and a rotatable elastic auxiliary cleaning roller structure 9 and a wing bolt 10, wherein the supporting legs 2 are bolted to the four corners of the bottom end of the fixed frame 1; an adjustment hole 3 is provided in the middle position inside the fixed frame 1; a conveyor belt mechanism 4 is arranged between the fixed frames 1; a rotatable locking auxiliary plate structure 5 is connected to the right side of the upper end of the fixed frame 1; an adjustable printing support frame structure 6 is arranged inside the adjustment hole 3; a rotatable adjustable printing frame structure 7 is provided in the middle position of the upper end of the fixed frame 1 and a supporting and rotating printing cylinder structure 8 is connected between the rotatable adjustable printing frame structures 7; the middle left position of the upper end of the fixed frame 1 A rotatable elastic auxiliary cleaning roller structure 9 is arranged at the position; wing bolts 10 are respectively threaded through the left and right sides of the middle position of the bottom end of the fixed frame 1; the rotatable locking auxiliary plate structure 5 includes a fixed block 51, a rotating plate 52, a locking bolt 53 and an arc plate 54, and the right end of the rotating plate 52 is arranged at the middle position of the upper end of the fixed block 51; the locking bolt 53 is penetrated inside the right end of the rotating plate 52; the left end of the rotating plate 52 is integrally provided with an arc plate 54; when in use, the fixed frame 1 and the supporting leg 2 are fixed in a suitable position, and an external power supply and an external control device are connected by an external wire, and then the fixed block 51 is respectively fixed to the upper right side of the fixed frame 1, and the distance between the arc plates 54 is adjusted according to the workpiece to be printed as needed, so as to facilitate the conveying and adjustment of the printed matter during the printing process and prevent the printed matter from being tilted and affecting the printing quality.

[0023] In this embodiment, combined with the Figure 3 As shown, the adjustable printing support frame structure 6 includes a support plate 61, a first sliding block 62, a support frame 63 and a silicone pad 64. The first sliding block 62 is bolted to the middle position of the front and rear ends of the support plate 61; the upper end of the support plate 61 is bolted to the support frame 63; the interior of the support frame 63 is filled with a silicone pad 64; after adjusting the device, according to the thickness of the printed matter, the wing bolt 10 is rotated, and during the rotation, the first sliding block 62 is pushed to drive the support plate 61 to move up and down, so as to facilitate the support work during the printing process and prevent the conveyor belt mechanism 4 from becoming loose and affecting the printing quality.

[0024] In this embodiment, combined with the Figure 4As shown, the rotatable and adjustable printing frame structure 7 includes a fixed frame 71, a sliding hole 72, a T-threaded rod 73 and a spring 74. The sliding hole 72 is opened in the middle position of the fixed frame 71; a T-threaded rod 73 is threadedly penetrated in the middle position of the upper end of the fixed frame 71; a spring 74 is sleeved on the lower part of the outer wall of the T-threaded rod 73; then, according to the specifications of the printed matter, the T-threaded rod 73 is rotated, and the pressure in the printing process is adjusted during the rotation of the T-threaded rod 73, and the printing pressure is adjusted by adjusting the printing effect.

[0025] In this embodiment, combined with the Figure 5 As shown, the structure 8 capable of supporting the rotating printing cylinder includes a first inclined T-shaped support tube 81, a second sliding block 82, a gravure printing roller 83 and a second inclined T-shaped support tube 84. The first inclined T-shaped support tube 81 is respectively arranged on the inner wall of the second sliding block 82; the first inclined T-shaped support tube 81 is respectively threadedly inserted in the middle position of the front and rear ends of the gravure printing roller 83 and bolted; the first inclined T-shaped support tube 81, the second sliding block 82 and the gravure printing roller 83 are penetrated by the second inclined T-shaped support tube 84 in the middle position of the interior; during the rotation of the T-shaped threaded rod 73, the second sliding block 82 is pushed to perform the lifting work, and at the same time, the first inclined T-shaped support tube 81 and the gravure printing roller are driven to rotate. The roller 83 is raised and lowered, and the distance between the gravure printing roller 83 and the conveyor belt mechanism 4 is adjusted during the lifting process. Then, during the printing process, the printed matter is driven to move to the left by the conveyor belt mechanism 4, and during the movement of the printed matter, the gravure printing work is realized by the pressure between the gravure printing roller 83 and the conveyor belt mechanism 4. During the printing process, the silicone pad 64 contacts the inner top of the conveyor belt mechanism 4 to realize printing support work. During the printing process, the worker uses a brush to apply printing ink on the surface of the gravure printing roller 83 or uses a filling pipe to fill ink. At the same time, the printing quality can be observed to complete the printing work.

[0026] In this embodiment, combined with the Figure 6As shown, the rotatable elastic auxiliary cleaning roller structure 9 includes a connecting frame 91, a reduction motor 92, a rotating roller 93 and an elastic cleaning bristle 94, the front end bolt of the connecting frame 91 is fixed with the reduction motor 92; the outer wall bolt of the output shaft of the reduction motor 92 is fixed with the rotating roller 93; the outer wall of the rotating roller 93 is fixed with elastic cleaning bristles 94 in sequence from front to back; during the printing process, the reduction motor 92 is controlled to drive the rotating roller 93 to rotate, and the elastic cleaning bristles 94 are driven to rotate during the rotation of the rotating roller 93, and the elastic cleaning bristles 94 contact the surface of the gravure printing roller 83 during the rotation, so as to facilitate the cleaning work during the printing process and prevent the printed matter from adhering to the outer wall of the gravure printing roller 83 during the printing process.

[0027] In this embodiment, specifically, the adjustment holes 3 are respectively arranged at the middle positions of the front and rear ends of the conveyor belt mechanism 4 and the adjustment holes 3 are arranged correspondingly.

[0028] In this embodiment, specifically, the bottom end of the locking bolt 53 is threadedly connected to the middle position inside the upper end of the fixing block 51, and the fixing block 51 is a disc-shaped stainless steel block.

[0029] In this embodiment, specifically, the fixing blocks 51 are bolted to the upper right side of the fixing frame 1; the rotating plate 52 and the arc plate 54 are respectively arranged in front of the upper right side and behind the upper right side of the conveyor belt mechanism 4.

[0030] In this embodiment, specifically, the silicone pad 64 is disposed at the middle position of the upper end of the support plate 61 and is glued thereto; the support frame 63 is a PVC frame.

[0031] In this embodiment, specifically, the support plate 61 is arranged between the fixed frames 1 and the support plate 61 passes through the internal middle position of the conveyor belt mechanism 4; the support frame 63 and the silicone pad 64 are arranged at the internal top end of the conveyor belt mechanism 4; the first sliding block 62 slides through the adjustment hole 3 and the bottom end of the first sliding block 62 is respectively contacted with the top end of the wing bolt 10.

[0032] In the present embodiment, specifically, the spring 74 is disposed at the inner top of the fixed frame 71 ; the upper end of the spring 74 is disposed in contact with the inner top of the fixed frame 71 .

[0033] In this embodiment, specifically, the fixing frames 71 are fixed to the middle position of the upper end of the fixing frame 1 by bolts.

[0034] In the present embodiment, specifically, a bearing is provided at the connection between the second sliding block 82 and the second inclined T-shaped support tube 84; the first inclined T-shaped support tube 81 and the gravure printing roller 83 are respectively bolted to the second inclined T-shaped support tube 84; a motor is bolted to the middle position of the rear end of the second sliding block 82 arranged at the rear end, and the rear end of the second inclined T-shaped support tube 84 is bolted to the outer wall of the motor output shaft.

[0035] In the present embodiment, specifically, the first inclined T-shaped support tube 81 and the gravure printing roller 83 are arranged in the upper middle position of the conveyor belt mechanism 4; the second sliding block 82 slides through the interior of the sliding hole 72 respectively and the bottom end of the T-shaped threaded rod 73 is inserted into the middle position of the upper end of the second sliding block 82 and a bearing is arranged at the connection; the first inclined T-shaped support tube 81 and the gravure printing roller 83 are arranged between the fixed frame 71.

[0036] In the present embodiment, specifically, the output shaft of the reduction motor 92 passes through the middle position inside the front end of the connecting frame 91 and a bearing is provided at the connection, and the connecting frame 91 adopts an inverted U-shaped stainless steel frame; the rotating roller 93 is arranged in the middle position inside the connecting frame 91; the elastic cleaning bristles 94 adopt elastic PVC bristles or elastic stainless steel bristles with a rubber sleeve on the outer wall.

[0037] In this embodiment, specifically, the bottom end bolt of the connecting frame 91 is fixed to the middle position of the upper left side of the fixing frame 1 ; the rotating roller 93 is arranged at the middle position of the upper left side of the conveyor belt mechanism 4 .

[0038] Embodiment 2: The present invention is described in detail below in conjunction with the accompanying drawings. Figure 1 To Attachment Figure 6As shown, when in use, the fixing frame 1 and the supporting leg 2 are fixed in appropriate positions, and the external power supply and the external control device are connected by an external wire, and then the fixing block 51 is respectively fixed to the upper right side of the fixing frame 1, and the distance between the arc plates 54 is adjusted according to the workpiece to be printed as needed, so as to facilitate the conveying and adjustment of the printed matter during the printing process, and prevent the printed matter from being tilted and affecting the printing quality. After adjusting the device, according to the thickness of the printed matter, the wing bolt 10 is rotated, and the first sliding block 62 is pushed during the rotation process to drive the supporting plate 61 to perform lifting work, so as to facilitate the support work during the printing process, and prevent the conveyor belt mechanism 4 from being loose and affecting the printing quality. Then, according to the specifications of the printed matter, the T-threaded rod 73 is rotated, and the threaded connection arrangement of the T-threaded rod 73 and the fixing frame 71 is used. In the process of rotating the T-threaded rod 73, the pressure in the printing process is adjusted. By adjusting the printing pressure, the purpose of improving the printing effect is achieved. In the process of rotating the T-threaded rod 73, the second sliding block 82 is pushed to perform lifting work, and at the same time, the first inclined T-shaped support tube 81 and the gravure plate 81 are driven. The printing roller 83 is lifted and lowered, and the distance between the gravure printing roller 83 and the conveyor belt mechanism 4 is adjusted during the lifting process. Then, during the printing process, the conveyor belt mechanism 4 drives the printed matter to move to the left, and during the movement of the printed matter, the gravure printing roller 83 passes through the bottom end of the gravure printing roller 83. The gravure printing work is realized by the pressure between the gravure printing roller 83 and the conveyor belt mechanism 4. During the printing process, the silicone pad 64 contacts the inner top of the conveyor belt mechanism 4 to realize the printing support work. During the printing process, the worker uses a brush to apply printing ink on the surface of the gravure printing roller 83 or uses a filling pipe to fill the ink. At the same time, the printing quality can be observed to complete the printing work. During the printing process, the reduction motor 92 is controlled to drive the rotating roller 93 to rotate, and the elastic cleaning brush 94 is driven to rotate during the rotation of the rotating roller 93. During the rotation, the elastic cleaning brush 94 contacts the surface of the gravure printing roller 83, which is convenient for cleaning during the printing process and prevents the printed matter from adhering to the outer wall of the gravure printing roller 83 during the printing process.

[0039] Utilizing the technical solution described in the present invention, or those skilled in the art designing a similar technical solution inspired by the technical solution of the present invention to achieve the above-mentioned technical effects, all fall within the protection scope of the present invention.

Claims

1. A gravure printing machine, comprising a fixed frame (1), wherein the four corners of the bottom end of the fixed frame (1) are respectively fixed with support legs (2) by bolts; an adjustment hole (3) is provided at the middle position inside the fixed frame (1); a conveyor belt mechanism (4) is provided between the fixed frames (1); characterized in that: The upper right side of the fixed frame (1) in the gravure printing machine is respectively connected with a rotatable locking auxiliary plate structure (5); the interior of the adjustment hole (3) is provided with an adjustable printing support frame structure (6); the middle position of the upper end of the fixed frame (1) is provided with a rotatable adjustable printing frame structure (7), and the rotatable adjustable printing frame structure (7) is connected with a rotatable printing cylinder structure (8); the middle position of the upper left side of the fixed frame (1) is provided with a rotatable elastic auxiliary cleaning roller structure (9); the left and right sides of the middle position of the bottom end of the fixed frame (1) are respectively threaded with wing bolts (10); the rotatable locking auxiliary plate structure (5) is respectively connected ... rotatable locking auxiliary plate structure (5) is respectively connected with a rotatable elastic auxiliary cleaning roller structure (9); the rotatable locking auxiliary plate structure (5) is respectively connected with a rotatable elastic auxiliary cleaning roller structure (9); the rotatable locking auxiliary plate structure (5) is respectively connected with a rotatable elastic auxiliary cleaning roller structure (9); the rotatable elastic auxiliary cleaning roller structure (9) is respectively connected with a rotatable elastic auxiliary cleaning roller structure (9); the rotatable elastic auxiliary cleaning roller structure (9) is respectively connected with a rotatable elastic auxiliary cleaning roller structure (9); the rotatable elastic auxiliary cleaning roller structure (9) is respectively connected with a rotatable elastic auxiliary cleaning roller structure (9); the rotatable elastic auxiliary cleaning roller structure (9) is respectively connected with a rotatable elastic auxiliary cleaning roller structure (9); the rotatable elastic auxiliary cleaning roller structure (9) is respectively connected with a rotatable elastic auxiliary cleaning roller structure (9); the rotatable elastic auxiliary cleaning The auxiliary plate structure (5) comprises a fixed block (51), wherein the right end of the rotating plate (52) is arranged at the middle position of the upper end of the fixed block (51); a locking bolt (53) is inserted into the right end of the rotating plate (52); an arc plate (54) is integrally arranged at the left end of the rotating plate (52); the rotatable and adjustable printing frame structure (7) comprises a fixed frame (71), wherein a sliding hole (72) is provided at the middle position of the inner part of the fixed frame (71); a T-shaped threaded rod (73) is threadedly inserted into the middle position of the upper end of the fixed frame (71); a spring (74) is sleeved on the lower part of the outer wall of the T-shaped threaded rod (73).

2. The gravure printing machine according to claim 1, characterized in that: The adjustable printing support frame structure (6) comprises a support plate (61), and a first sliding block (62) is bolted to the middle position of the front and rear ends of the support plate (61); a support frame (63) is bolted to the upper end of the support plate (61); and the interior of the support frame (63) is filled with a silicone pad (64).

3. The gravure printing machine according to claim 1, characterized in that: The structure (8) capable of supporting a rotating printing cylinder comprises a first oblique T-shaped support tube (81), wherein the first oblique T-shaped support tube (81) is respectively arranged on the inner wall of the second sliding block (82); the first oblique T-shaped support tube (81) is respectively threadedly inserted into the middle position inside the front and rear ends of the gravure printing roller (83) and fixed with bolts; and a second oblique T-shaped support tube (84) penetrates the middle position inside the first oblique T-shaped support tube (81), the second sliding block (82) and the gravure printing roller (83).

4. The gravure printing machine according to claim 1, characterized in that: The rotatable elastic auxiliary cleaning roller structure (9) comprises a connecting frame (91), a reduction motor (92) being fixed to the front end of the connecting frame (91) by bolts; a rotating roller (93) being fixed to the outer wall of the output shaft of the reduction motor (92) by bolts; and elastic cleaning bristles (94) being fixed to the outer wall of the rotating roller (93) in sequence from front to back.

5. The gravure printing machine according to claim 1, characterized in that: The fixing blocks (51) are bolted to the upper right side of the fixing frame (1); the rotating plate (52) and the arc plate (54) are respectively arranged in front of the upper right side and behind the upper right side of the conveyor belt mechanism (4).

6. The gravure printing machine according to claim 2, characterized in that: The support plate (61) is arranged between the fixing frames (1) and passes through the middle position inside the conveyor belt mechanism (4); the support frame (63) and the silicone pad (64) are arranged at the top end inside the conveyor belt mechanism (4); the first sliding block (62) slides through the adjustment hole (3) and the bottom end of the first sliding block (62) is respectively contacted with the top end of the wing bolt (10).

7. The gravure printing machine according to claim 1, characterized in that: The fixing frames (71) are respectively fixed at the middle position of the upper end of the fixing frame (1) by bolts.

8. The gravure printing machine according to claim 3, characterized in that: The first inclined T-shaped support tube (81) and the gravure printing roller (83) are arranged at the middle position above the conveyor belt mechanism (4); the second sliding blocks (82) respectively slide through the interior of the sliding holes (72) and the bottom end of the T-shaped threaded rod (73) is inserted into the middle position inside the upper end of the second sliding block (82) and a bearing is arranged at the connection; the first inclined T-shaped support tube (81) and the gravure printing roller (83) are arranged between the fixed frames (71).

9. The gravure printing machine according to claim 4, characterized in that: The bottom end bolt of the connecting frame (91) is fixed to the middle position on the left side of the upper end of the fixing frame (1); and the rotating roller (93) is arranged at the middle position on the left side above the conveyor belt mechanism (4).

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