Gear box mechanism of a rotary intaglio printing press and assembly method

Abstract

The application discloses a unit type gravure printing machine gear box mechanism, which comprises a top plate shaft, a first component and a second component, the first component is sleeved with a large support, the second component is circumferentially sleeved with a square box, the square box is connected with a linear guide rail sliding seat, the large support is fixedly connected with a linear guide rail, the linear guide rail is slidably connected with the linear guide rail sliding seat, the square box is further connected with a cylinder front support, the large support is further fixedly connected with a cylinder rear support, the cylinder rear support is connected with a cylinder, the cylinder telescopic end is provided with a movable joint, and the movable joint is connected with the cylinder front support. The application is sealed and cleaned through the setting of sleeve cups, oil inlet pipes and speed regulating valves, thereby avoiding the problem of lubricating liquid leakage caused by the tight sealing of the connection. The application further discloses a unit type gravure printing machine gear box mechanism assembling method, which adjusts the coaxiality, perpendicularity, parallelism and runout value among the top plate shaft, the large support, the linear guide rail sliding seat, the linear guide rail and the square box. The assembling method is simple and easy to operate.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of mechanical assembly method, and relates to a gear box mechanism of a unit type gravure printing machine and a method for assembling the gear box mechanism of the unit type gravure printing machine. BACKGROUND

[0002] Mechanical assembly is an important process in mechanical manufacturing, which finally determines the quality of mechanical products. Even if all the parts are qualified, the product cannot be qualified if the assembly is improper. Complete process flow and standardized assembly operation can ensure the assembly quality of the product.

[0003] The gear box mechanism of the unit type gravure printing machine bears the important function of driving the printing of the plate roller, and thus the assembly quality of the gear box directly affects the printing quality of the whole machine. In the prior art, the gear box mechanism of the unit type gravure printing machine has the following problems: due to the unreasonable position relationship between the parts, the position relationship of the large support and the top plate shaft, the wallboard rack is not qualified, which leads to the unqualified coaxiality of the gear box cone head and the M side version cone head; the top plate shaft and the sliding sleeve cannot be flexibly pushed and pulled to rotate, the assembly gap is not suitable, and the parallelism of the top plate shaft and the linear guide is not suitable, thereby affecting the flexibility of the gear box, and the noise and heat are large, and the after-sales service is much. SUMMARY

[0004] The present application aims to provide a gear box mechanism of a unit type gravure printing machine, which solves the problem of inaccurate alignment and adjustment between the parts due to the unreasonable position relationship of the parts in the prior art.

[0005] Another object of the present application is to provide a method for assembling the gear box mechanism of the unit type gravure printing machine, which facilitates the alignment and adjustment between the parts.

[0006] The first technical solution adopted by the present application is a gear box mechanism of a unit type gravure printing machine, which comprises a top plate shaft, the top plate shaft is circumferentially sleeved with a first assembly and a second assembly, the first assembly is circumferentially sleeved with a large support, the second assembly is circumferentially sleeved with a square box, the square box is connected with a linear guide sliding seat at the bottom, the large support is fixedly connected with a linear guide, the linear guide is slidingly connected with the linear guide sliding seat, the square box is further connected with a cylinder front support at the bottom, the large support is further fixedly connected with a cylinder rear support, the cylinder rear support is connected with a cylinder, the cylinder is provided with a movable joint at the telescopic end, and the movable joint is connected with the cylinder front support.

[0007] The first technical solution of the present application is characterized in that:

[0008] The top version shaft is connected with a taper head at one end, and is provided as a stepped shaft at the other end;

[0009] The first assembly is sleeved on the top version shaft near the taper head, and a bearing gland b is sleeved on one side of the first assembly in the circumferential direction, a sleeve cup is arranged on the top version shaft and located on the other side of the first assembly, the bearing gland b and the sleeve cup are both threadedly connected with the large support, the side of the sleeve cup away from the large support is fixedly connected with a gland a, the gland a is threadedly connected with the sleeve cup, and the sleeve cup is also connected with an oil inlet pipe assembly and a speed regulating valve; the second assembly is sleeved on the stepped shaft of the top version shaft, and a bearing gland a is sleeved on the side of the second assembly away from the square box in the circumferential direction, the bearing gland a is bolted with the square box, a speed reducer and a servo motor are sequentially connected to the end of the square box away from the second assembly, the speed reducer is connected with the top version shaft through a shaft coupling, and the speed reducer and the servo motor are bolted, and an oil cup is further arranged on the square box and penetrates the second assembly.

[0010] The first assembly comprises a sliding sleeve, the sliding sleeve is gap-sleeved on the top version shaft, two bearings a are sleeved on the sliding sleeve in the circumferential direction, a spacer a is arranged between the two bearings a, a blocking structure is arranged on one side of the sliding sleeve, and an elongated gasket, a stop ring a and a locking nut a are sequentially arranged on the other side of the sliding sleeve and sleeved on the top version shaft, the elongated gasket abuts against the side wall of the bearing a, the locking nut a is threadedly connected with the sliding sleeve, and is used for limiting the axial movement of the bearing a;

[0011] The second assembly comprises two bearings b sleeved on the top version shaft in the circumferential direction, a spacer b is arranged between the two bearings b, and a through hole is formed in the spacer b and used for being communicated with the oil cup, one side of one of the bearings b abuts against the stepped shaft of the top version shaft, and a stop ring b and a locking nut b are sequentially arranged on the side of the other bearing b away from the spacer b and sleeved on the top version shaft, the stop ring b abuts against the side wall of the bearing b, the locking nut b is threadedly connected with the bearing b, and is used for limiting the axial movement of the bearing b.

[0012] The inner hole of the large support is provided with a clamping table, and the bearing gland b and the clamping table limit the bearing a.

[0013] An O-shaped sealing ring a is arranged between the large support and the bearing gland b, an O-shaped sealing ring b is arranged between the large support and the sleeve cup, an oil seal a is arranged between the sleeve cup and the gland a, and a gland b is bolted to the side of the bearing gland b away from the sliding sleeve, and an oil seal b is arranged between the gland b and the bearing gland b.

[0014] The second technical scheme adopted in the present application is a gear box mechanism assembly method of a unit type intaglio printing machine, and the method comprises the following steps of using the above-mentioned gear box mechanism of the unit type intaglio printing machine:

[0015] Step 1, check all parts for no oil stains and scratches;

[0016] Step 2, assemble the first assembly, match the first assembly with the top version shaft gap, and then assemble the first assembly and the top version shaft with the large support;

[0017] Step 3, install bearing gland b on one side of the first assembly, and debug the perpendicularity of the top version shaft and the large support right angle surface, and seal after installation and debugging; install the sleeve cup, oil inlet pipe assembly and speed regulating valve on the other side of the first assembly, and seal the connection during installation of the sleeve cup, oil inlet pipe assembly and speed regulating valve;

[0018] Step 4, install the linear guide rail and debug the top version shaft;

[0019] Step 5, assemble the second assembly, disassemble the top version shaft from the large support, and then match the second assembly with the top version shaft gap;

[0020] Step 6, assemble the square box with the linear guide rail sliding seat, assemble the square box around the second assembly, connect the bearing gland a with the square box, and then debug;

[0021] Step 7, install the oil cup on the square box, then assemble the proximity switch and the proximity switch support and install them on the square box, and finally install the speed reducer and the servo motor;

[0022] Step 8, install the gear box part on the rack, debug the top version shaft levelness and perpendicularity, then install the cone head and debug;

[0023] Step 9, fix the cylinder front support to the bottom of the square box with bolts, install the cylinder on the cylinder rear support, then fasten the cylinder rear support to the large support with bolts, adjust the range of the cylinder connected with the cylinder front support through the movable joint, and finally connect the cylinder gas circuit and the servo motor circuit;

[0024] Step 10, mark the bolts and detect the looseness of the bolts.

[0025] The second technical solution of the application also has the characteristics that,

[0026] In step 3, the debug of the perpendicularity of the top version shaft and the large support right angle surface is specifically: the top version shaft is inserted into the large support and extends 200mm, the magnetic table seat is adsorbed on the top version shaft, the dial gauge measuring head touches the large support right angle end face, and one circle is rotated to find the perpendicularity of the top version shaft and the large support right angle end face within 0.02mm.

[0027] In step 4, the debug is specifically: the magnetic table seat is adsorbed on the linear guide rail sliding seat, the dial gauge measuring head touches the top version shaft, the linear guide rail sliding seat is pushed back and forth, and the linear guide rail is tapped with a nylon rod to make the top version shaft parallel to the linear guide rail within 0.02mm.

[0028] In step 6, the debug is specifically:

[0029] The magnetic table seat is adsorbed on the top version shaft, the dial gauge measuring head touches the square box, the top version shaft is rotated one circle, and the square box is tapped with a nylon rod or a copper rod, so that the perpendicularity of the top version shaft and the square box is less than or equal to 0.10 mm;

[0030] The magnetic table seat is adsorbed on the top version shaft, the dial gauge measuring head touches the square box, the top version shaft is rotated one circle, and the square box is tapped with a nylon rod or a copper rod, so that the perpendicularity of the top version shaft and the square box is less than or equal to 0.10 mm;

[0031] After the perpendicularity and coaxiality of the top version shaft and the square box are adjusted and qualified, the square box is fastened on the linear guide rail sliding seat by bolts.

[0032] The flexibility of the square box is tested by a pointer type digital display push-pull scale, and the flexibility less than or equal to 15 kg is qualified.

[0033] The adjustment of the cone head in step 8 is specifically: the cone head runout is detected by using a magnetic table seat and a dial gauge, and the runout less than or equal to 0.03 mm is qualified.

[0034] The beneficial effects of the present application are:

[0035] 1. The tooth box mechanism of the present application is sealed and cleaned through the setting of sleeve cups, oil inlet pipes and speed regulating valves between various parts, avoiding the problem of lubricating liquid leakage caused by the poor sealing of the connection, improving the quality of the tooth box mechanism, prolonging the service life of the tooth box mechanism and reducing the maintenance cost.

[0036] 2. The assembly method of the tooth box mechanism of the present application can ensure that the version roller part runout is qualified, the square box flexibility is qualified, the tooth box part heat generation temperature is qualified during long time operation, there is no abnormal noise and no lubricating oil leakage during the one-time assembly process of the whole machine product, and the bolt loosening phenomenon can be found by self-checking. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is a structural schematic diagram of the tooth box mechanism of the present application;

[0038] Figure 2 is an assembly schematic diagram of the top version shaft and the sliding sleeve in the tooth box mechanism of the present application;

[0039] Figure 3 is a structural schematic diagram of the first assembly in the tooth box mechanism of the present application;

[0040] Figure 4 is a locking torque test schematic diagram of the first assembly locking nut a in the tooth box mechanism of the present application;

[0041] Figure 5a is a structural schematic diagram of the bearing gland b in the tooth box mechanism of the present application;

[0042] Figure 5bIt is the connecting structure schematic view of big support and bearing a in the gear box mechanism of the application;

[0043] Figure 5c It is the connecting structure schematic view of bearing gland b and big support in the gear box mechanism of the application;

[0044] Figure 6 It is the perpendicularity adjustment schematic view of top version shaft and big support right angle surface in the gear box mechanism of the application;

[0045] Figure 7 It is the structure schematic view of oil inlet pipe assembly in the gear box mechanism of the application;

[0046] Figure 8 It is the assembly schematic view of linear guide rail in the gear box mechanism of the application;

[0047] Figure 9 It is the parallelism adjustment schematic view of linear guide rail and top version shaft in the gear box mechanism of the application;

[0048] Figure 10 It is the structure schematic view of top version shaft tail assembly in the gear box mechanism of the application;

[0049] Figure 11 It is the perpendicularity adjustment schematic view of top version shaft and square box in the gear box mechanism of the application;

[0050] Figure 12 It is the coaxial adjustment schematic view of top version shaft and hole in the gear box mechanism of the application;

[0051] Figure 13 It is the flexibility test schematic view of square box in the gear box mechanism of the application;

[0052] Figure 14 It is the assembly schematic view of gear box part and G side wallboard in the gear box mechanism of the application;

[0053] Figure 15 It is the horizontal adjustment schematic view of top version shaft in the gear box mechanism of the application;

[0054] Figure 16 It is the perpendicularity adjustment schematic view of top version shaft and G side wallboard direction in the gear box mechanism of the application;

[0055] Figure 17 It is the coaxial adjustment schematic view of G side and M side top version shaft in the gear box mechanism of the application;

[0056] Figure 18 It is the runout adjustment schematic view of taper head in the gear box mechanism of the application;

[0057] Figure 19 It is the principle diagram for adjustment of taper head in the gear box mechanism of the application;

[0058] Figure 20It is the bolt anti-loosening mark schematic diagram in the gear box mechanism of the present application.

[0059] In the figure: 1. Key, 2. O-ring a, 3. Oil seal a, 4. Oil inlet pipe assembly, 5. Sleeve cup, 6. Cover a, 7. Bearing cover a, 8. Oil cup, 9. Proximity switch, 10. Proximity switch support, 11. Detection gear, 12. Square box, 13. Reducer, 14. Servo motor, 15. Cone head, 16. Top version shaft, 17. Cover b, 18. Oil seal b, 19. Bearing cover b, 20. First assembly, 21. O-ring b, 22. Large support, 23. Speed regulating valve, 24. Second assembly, 25. Cylinder front support, 26. Movable joint, 27. Coupling, 28. Linear guide sliding seat, 29. Linear guide rail, 30. Cylinder rear support, 31. Cylinder, 32. Slide sleeve, 33. Bearing a, 34. Spacer a, 35. Extended gasket, 36. Stop ring a, 37. Lock nut a, 38. Bearing b, 39. Spacer b, 40. Stop ring b, 41. Lock nut b, 42. Screw plug, 43. Oil inlet pipe, 44. Filter screen, 45. Joint, 46. G side wall plate, 47. M side wall plate, 48. Connected piece, 49. Fixed piece, 50. Flat gasket, 51. Elastic gasket, 52. External hexagonal bolt, 53. Internal hexagonal bolt, 54. Cylindrical straight pin, 55. Torque wrench, 56. Magnetic watch holder, 57. Dial indicator, 58. Pointer type digital display push-pull scale, 59. Level, 60. Laser centering instrument, 61. Connection tooling, 62. Version roller. DETAILED DESCRIPTION

[0060] The present application will be described in detail below in conjunction with the drawings and specific embodiments.

[0061] Example 1

[0062] As Figure 1As shown, the present application provides a unit type gravure printing machine gear box mechanism, which comprises a top plate shaft 16, the first assembly 20 and the second assembly 24 are circumferentially sleeved on the top plate shaft 16, the first assembly 20 is circumferentially sleeved with a large support 22, the second assembly 24 is circumferentially sleeved with a square box 12, the square box 12 is connected with a linear guide rail sliding seat 28 at the bottom, the large support 22 is fixedly connected with a linear guide rail 29, the linear guide rail 29 is slidingly connected with the linear guide rail sliding seat 28, the square box 12 is further connected with a cylinder front support 25 at the bottom, the large support 22 is further fixedly connected with a cylinder rear support 30, the cylinder rear support 30 is connected with a cylinder 31, the cylinder 31 is provided with a movable joint 26 at the telescopic end, and the movable joint 26 is connected with the cylinder front support 25. The top plate shaft 16 is tightly connected with the speed reducer 13 through a coupling 27, the coupling 27 is tightly connected with a speed measuring gear 11 through a screw, a proximity switch 9 is tightly connected with a proximity switch support 10, the proximity switch support 10 is tightly connected with the large support 22, the speed reducer 13 is tightly connected with the large support 22 through a screw, and the speed reducer 13 is tightly connected with a servo motor 14 through a screw.

[0063] Example 2

[0064] On the basis of example 1, the top plate shaft 16 is connected with a taper head 15 at one end through a key, and the other end of the top plate shaft 16 is provided as a stepped shaft;

[0065] The first assembly 20 is sleeved on the top plate shaft 16 close to the taper head 15, and a bearing gland b19 is circumferentially sleeved on one side of the first assembly 20, and the bearing gland b19 fixes the first assembly 20. A sleeve cup 5 is arranged on the top plate shaft 16 and located on the other side of the first assembly 20, the sleeve cup 5 seals an oil cavity to prevent lubricating oil from leaking, the bearing gland b19 and the sleeve cup 5 are tightly connected with the large support 22 through a screw, an oil seal a3 and a gland a6 are fixedly connected with one side of the sleeve cup 5 away from the large support 22, the gland a6 tightly connects the oil seal a3 with the sleeve cup 5, the sleeve cup 5 is further connected with an oil inlet pipe assembly 4 and a speed regulating valve 23; the oil inlet pipe assembly 4 is an oil inlet, and the speed regulating valve 23 is a lubricating liquid and cleaning liquid; the second assembly 24 is sleeved on the stepped shaft of the top plate shaft 16, a bearing gland a7 is circumferentially sleeved on one side of the second assembly 24 away from the square box 12, the bearing gland a7 is tightly connected with the square box 12 through a screw, the bearing gland a7 tightly connects the second assembly 24 with the square box 12, the square box 12 is sequentially connected with the speed reducer 13 and the servo motor 14 at one end away from the second assembly 24, the speed reducer 13 is used in cooperation with the servo motor 14, the speed reducer 13 is connected with the top plate shaft 16 through the coupling 27, the speed reducer 13 is tightly connected with the square box 12 through a screw, the speed reducer 13 and the servo motor 14 are connected through a screw, and an oil cup 8 is further arranged on the square box 12, the oil cup 8 passes through the second assembly 24, and the oil cup 8 is an oiling place.

[0066] The first component 20 comprises a sliding sleeve 32 which is sleeved on the top version shaft 16 in a clearance fit, and the sliding sleeve 32 is provided with a through hole for the circulation of lubricating oil. The sliding sleeve 32 is circumferentially sleeved with two bearings a33 which are used for the rotational movement of the top version shaft 16, and a spacer sleeve a34 is arranged between the two bearings a33. A blocking structure is arranged on one side of the sliding sleeve 32, and an elongated gasket 35, a stop ring a36 and a locking nut a37 are sequentially arranged on the other side of the sliding sleeve 32 which is sleeved on the top version shaft 16. The elongated gasket 35 abuts against the side wall of the bearing a33, the locking nut a37 is threadedly connected with the sliding sleeve 32 and is used for limiting the axial movement of the bearing a33, and the elongated gasket 35 prevents the bearing a33 from being blocked due to abrasion of the stop ring a36, and the stop ring a36 locks the locking nut a37 to prevent loosening of the locking nut a37.

[0067] The second component 24 comprises two bearings b38 which are circumferentially sleeved on the top version shaft 16 and are used for the rotational movement of the top version shaft 16, and a spacer sleeve b39 is arranged between the two bearings b38. The spacer sleeve b39 is provided with a through hole which is used for communication with the oil cup 8. One side of one of the bearings b38 abuts against the stepped portion of the top version shaft 16, and a stop ring b40 and a locking nut b41 are sequentially arranged on the side of the other bearing b38 which is away from the spacer sleeve b39 and is sleeved on the top version shaft 16. The stop ring b40 abuts against the side wall of the bearing b38, and the locking nut b41 is threadedly connected with the bearing b38 and is used for limiting the axial movement of the bearing b38. The stop ring b40 is the same as the stop ring a36, and the locking nut b41 is the same as the locking nut a37.

[0068] In some embodiments, the inner hole of the large bracket 22 is provided with a clamping table, and the bearing press cover b19 and the clamping table limit the bearing a33.

[0069] Example 3

[0070] On the basis of example 2, an O-shaped sealing ring a2 is arranged between the large bracket 22 and the bearing press cover b19, the sealing ring 2 tightly connects the bearing press cover b19 and the large bracket 22 without seams, so as to prevent leakage of lubricating liquid; an O-shaped sealing ring b21 is arranged between the large bracket 22 and the sleeve cup 5, an oil seal a3 is arranged between the sleeve cup 5 and the press cover a6, and the oil seal a3 prevents leakage of lubricating liquid from the gap between the top version shaft 16 and the press cover a6; the bearing press cover b19 is boltedly connected with a press cover b17 on the side which is away from the sliding sleeve 32, and the press cover b17 fastens an oil seal b18 on the bearing press cover b19. The press cover b17 and the bearing press cover b19 are provided with the oil seal b18. The oil seal b18 prevents leakage of lubricating liquid from the gap between the top version shaft 16 and the bearing press cover b19.

[0071] In some embodiments, the speed measuring gear 11 is used in cooperation with the proximity switch 9 to measure the rotational speed of the top version shaft 16.

[0072] The application further provides an assembling method of the gear box mechanism of the above-mentioned group intaglio printing machine, comprising the following steps:

[0073] Step 1, check all parts for no oil stains and no scratch marks;

[0074] Step 1.1, check all parts for no oil stains inside and outside, no scratch marks, and the outsourced parts, standard parts and processed parts must be cleaned, and the surface of the oil seal should be smooth and defect-free.

[0075] Step 2, as shown in Figure 2 , assemble the first assembly 20, select the first assembly 20 and the top plate shaft 16 with a gap fit, and then assemble the assembled first assembly 20 and the top plate shaft 16 with the large support 22;

[0076] Step 2.1, gap fit the slide sleeve 32 and the top plate shaft 16. Measure the outer diameter d1 of the top plate shaft 16 and the inner hole diameter d2 of the slide sleeve 32 respectively, and make the inner hole diameter d2 of the slide sleeve 32 greater than the outer diameter d1 of the top plate shaft 16 by 0.03mm-0.05mm. When pushing and pulling by hand, it should not be too difficult but not too easy to push and pull, and there should be a certain force when pushing and pulling, and there should be no obvious blocking phenomenon, and the same characters are marked;

[0077] Step 2.2, assemble the first assembly 20. Lubricate the outer circle of the slide sleeve 32 and the inner hole of the large support 22. Assemble the slide sleeve 32, 2 bearings 33, spacer sleeve a 34, lengthening washer 35, stop collar a 36, lock nut a 37, and lock nut a 37 inner thread M95x2 together as shown in Figure 3 . It should be noted here that when assembling the bearing a 33, a soft iron pipe or other soft metal pipe or wooden pipe should be used to hit the bearing a 33, and the hitting force should be evenly applied to the inner circle of the bearing a 33, and no impurities should be brought in during assembly;

[0078] Step 2.3, lock torque test. As shown in Figure 4 , use the torque wrench 55 to test the locking force of the lock nut 37, and the locking force 140N / M is qualified, and then use a flat screwdriver to lock the stop collar a 36;

[0079] Step 2.4, clean the first assembly 20. Place the assembled first assembly 20 in the cleaning machine and clean it with kerosene.

[0080] Step 2.5, install the first assembly 20. Install the first assembly 20 in the hole of the large support 22. Ensure that the right end of the first assembly 20 is in close contact with the hole bottom of the large support 22, and there should be no gap, as shown in Figure 1 I.

[0081] Step 3, install bearing gland b19 on one side of first assembly 20, and adjust the perpendicularity of top shaft 16 and right angle face of big bracket 22, after adjustment, seal treatment is carried out; install sleeve cup 5, oil seal a3 gland a6, oil inlet pipe assembly 4 and speed regulating valve 23 on the other side of first assembly 20, and seal treatment is carried out at the connection part during installation of sleeve cup 5, oil inlet pipe assembly 4 and speed regulating valve 23;

[0082] Step 3.1, assembly of parts at left end of big bracket 22.

[0083] Step 3.1.1, bearing gland b19 modification. Bearing gland b19 is interference fit, and the interference is 0mm-0.05mm. Measure the distance h2 between the aperture of big bracket 22 and the outer ring of bearing a33, and then measure the distance h1 between the aperture of bearing gland b19 and the end face of bearing gland b19, so that the difference between h1 and h2 is 0mm-0.05mm. If not, use a surface grinder to grind the end face A of bearing gland b19 to meet the requirements, as shown in Figures 5a-5c

[0084] Step 3.1.2, installation of O-ring a2. Install O-ring a2 between bearing gland b19 and big bracket 22, as shown in Figure 1 or Figures 5a-5c

[0085] Step 3.1.3, apply sealant. Apply sealant to the edge VI of the end face of bearing gland b19, as shown in Figures 5a-5c

[0086] Step 3.1.4, as shown in Figure 6 , adjust the perpendicularity of top shaft 16 and right angle face of big bracket 22, and tighten bearing gland b19. Take the top shaft 16 with the same character as the selected sliding sleeve 32, insert it into the big bracket 22, and extend it by 200mm. Attach the magnetic table stand 56 to the top shaft 16, and touch the measuring head of dial gauge 57 to the right angle end face B of big bracket 22. Rotate one circle to find the perpendicularity of top shaft 16 and right angle end face B of big bracket 22 within 0.02mm, and then tighten bearing gland b19 to big bracket 22 with bolts.

[0087] Step 3.1.5, as shown in Figure 1 , install oil seal b18 and gland b17. Install oil seal b18, and tighten gland b17 to bearing gland b19 with bolts to press oil seal b18.

[0088] Step 3.2, assembly of parts at right end of big bracket 22.

[0089] ​​​Step 3.2.1, cup 5, O-ring b21, oil seal a3, gland a6 installation. Uniformly apply a suitable amount of sealant to the edge of the cup 5, as in step 3.1.3. Then respectively cup 5, O-ring b21, oil seal a3 and gland a6 assembled on the large bracket 22. Among them, cup 5 and large bracket 22, gland a6 and cup 5 are fastened with bolts. Before and after fastening, it must be ensured that the push-pull and rotating top version shaft 16 is flexible.

[0090] Step 3.2.2, oil inlet pipe assembly 4 assembly.

[0091] Step 3.2.2.1, as shown in Figure 7 , the oil inlet pipe assembly 4 is assembled. Use scissors to cut a suitable size 1.5mm thick filter screen 44 and place it at the bottom of the joint 45, then fasten it with the oil inlet pipe 43, and finally fasten the screw plug 42 on the oil inlet pipe 43. 3.2.2.2, winding raw material belt. Wrap the raw material belt around the joint 45 thread VII. Ensure that there is no gap between the oil inlet pipe assembly 4 and the large bracket 22 to prevent lubricating liquid from leaking.

[0092] Step 3.2.3, as shown in Figure 1 , install the oil inlet pipe assembly 4. Use a movable wrench to fasten the oil inlet pipe assembly 4 on the large bracket 22.

[0093] Step 3.3, install the speed regulating valve 23.

[0094] Step 4, install the linear guide rail 29 and debug with the top version shaft 16;

[0095] Step 4.1, as shown in Figure 8 , install the linear guide rail 29. Position a pair of linear guide rails 29 with 8 cylindrical straight pins 54 and connect them with hexagonal bolts 53. The cylindrical straight pins 54 and bolts 53 cannot be higher than the surface of the linear guide rail 29. When assembling the positioning cylindrical straight pin 54, the end is coated with lubricating oil, and when pressing, an iron hammer should not be used, but a copper hammer should be used to avoid knocking the cylindrical straight pin 54.

[0096] Step 4.2, as shown in Figure 9 , debug the linear guide rail 29 with the top version shaft 16. Put on the linear guide rail sliding seat 28, adsorb the magnetic table seat 56 on the linear guide rail sliding seat 28, touch the dial gauge 57 on the top version shaft 16, push and pull the linear guide rail sliding seat 28, tap the linear guide rail 29 with a nylon rod, and make the top version shaft 16 parallel to the linear guide rail 29 within 0.02mm, then fasten the hexagonal bolts 53.

[0097] Step 5, assemble the second assembly 24, remove the top version shaft 16 from the large bracket 22, and then select the second assembly 24 and the top version shaft 16 with a gap fit;

[0098] Step 5.1, asFigure 10 As shown, the second component 24 is assembled. Remove the top plate shaft 16 and assemble two bearings b38, spacer b39, retaining ring b40 and locking nut b41 at the tail of the top plate shaft 16. The internal thread of the locking nut b41 is M50x1.5.

[0099] Step 5.2, tightening torque test of lock nut b41. Use a 55 torque wrench to test the tightening torque of lock nut b41. A tightening force of 60 N / M is acceptable. Then use a flathead screwdriver to tighten the retaining ring b40, similar to step 2.3.

[0100] Step 5.3, then install the top plate shaft 16 onto the large bracket 22.

[0101] Step 6: Assemble the square box 12 with the linear guide slide seat 28, assemble the square box 12 circumferentially with the second component 24, connect the bearing cover a7 to the square box 12, and then perform debugging.

[0102] Step 6.1, install the square box 12 and the bearing cover a7. Connect the square box 12 to the linear guide slide seat 28 with bolts. The assembly method of the bearing cover a7 is the same as in step 3.1.1, connecting it to the square box 12 with bolts.

[0103] Step 6.2, as follows Figure 11 As shown, adjust the perpendicularity between the top plate shaft 16 and the square box 12. Attach the magnetic base 56 to the top plate shaft 16, and place the measuring head of the dial indicator 57 on the surface C of the square box 12. Rotate the top plate shaft 16 one revolution, and gently tap the square box 12 with a nylon or copper rod until the perpendicularity between the top plate shaft 16 and the surface C of the square box 12 is less than or equal to 0.10 mm.

[0104] Step 6.3, as follows Figure 12 As shown, adjust the coaxiality between the top plate shaft 16 and the hole D of the square box 12. Attach the magnetic base 56 to the top plate shaft 16, touch the wall D of the hole in the square box 12 with the dial indicator 57, rotate the top plate shaft 16, and gently tap the square box 12 with a nylon or copper rod until the coaxiality between the top plate shaft 16 and the hole D of the square box 12 is less than or equal to 0.10 mm.

[0105] Step 6.4, complete steps 6.1, 6.2 and 6.3; tighten the bolts so that the bearing cap a7 is fastened to the square box 12, and the square box 12 is fastened to the linear guide sliding seat 28;

[0106] Step 6.5, as follows Figure 13 As shown, using a pointer-type digital display push-pull scale, the push-pull test box 12 has a flexibility of less than or equal to 15kg to be considered qualified. If it is not qualified, re-inspect step 4.2.

[0107] Step 7: Install the oil cup 8 on the square box 12, then assemble the proximity switch 9 and the proximity switch bracket 10 and install them on the square box 12, and finally install the reducer 13 and the servo motor 14.

[0108] Step 7.1, as follows Figure 1 As shown, oil cup 8 is installed. Use an adjustable wrench to tighten oil cup 8 onto square box 12;

[0109] Step 7.2, Install proximity switch 9. Install proximity switch 9 on proximity switch bracket 10, and then install it on square box 12;

[0110] Step 7.3: Install the reducer 13 and servo motor 14. Secure the reducer 13 to the top plate shaft 16 using coupling 27. Adjust the position of the detection gear 11 and tighten it onto the top plate shaft 16 and reducer 13 with screws. Secure the reducer 13 to the square box 12 with bolts, and secure the reducer 13 to the servo motor 14 with bolts. At this point, the gearbox mechanism is assembled.

[0111] Step 8: Assemble the linear guide slide seat 28 onto the linear guide 29, assemble the first component 20 with the large bracket 22, adjust the horizontal and verticality of the top plate shaft 16, and then install and adjust the cone head 15.

[0112] Step 8.1, as follows Figure 14 As shown, install the gearbox onto the frame. Position the gearbox assembly to the G side wall plate 46 using cylindrical pins 54 and connect it with hex bolts 52. Installation requires that the frame has been leveled. Note: The G and M side wall plates are parts on the frame.

[0113] Step 8.2, as follows Figure 15 As shown, adjust the levelness of the top plate shaft 16. Place the level 59 on the top plate shaft 16, and adjust the relative position of the gearbox mechanism and the G side wall plate 46 so that the levelness of the top plate shaft 16 is less than or equal to 0.02 mm / m.

[0114] Step 8.3, as follows Figure 16 As shown, adjust the perpendicularity of the top plate shaft 16 and the G side wall plate 46 at two horizontal points. Extend the top plate shaft 16 by 200mm and attach the magnetic gauge base 56 to the top plate shaft 16. Place the dial indicator 57 on the G side wall plate 46 and rotate the top plate shaft 16 one revolution. Adjust the relative position of the gearbox mechanism and the G side wall plate 46 so that the perpendicularity of the top plate shaft 16 and the G side wall plate 46 at two horizontal points is less than or equal to 0.05mm.

[0115] Step 8.4, as follows Figure 17As shown, adjust the coaxiality of the G side wall plate 46, M side wall plate 47, and top plate shaft 16. Set the connecting fixture 61 on the top plate shafts 16 on both sides and measure with a laser alignment instrument 60. Adjust the relative position of the gearbox mechanism and the G side wall plate 46 so that the coaxiality between the G side and the M side is less than or equal to 0.1mm.

[0116] Step 8.5: Complete steps 8.2, 8.3, and 8.4, and tighten the external hex bolts 52;

[0117] Step 8.5, install and adjust cone 15;

[0118] Step 8.5.1, as follows Figure 1 and Figure 14 As shown, install the cone head 15. The cone head 15 is connected to the top plate shaft 16 via key 1. Clean the area around the key and the keyway of the cone head 15 with a file, apply lubricant to the area around the key 1, press the key 1 into the keyway on the left side of the top plate shaft 16, install the cone head 15 on the top plate shaft 16, and connect it with an internal hex bolt 53;

[0119] Step 8.5.2, as follows Figure 18 As shown, adjust the runout of the cone head 15. Extend the top plate shaft 16 by 200mm and attach the magnetic gauge base 56 to the G side wall plate 46. Place the dial indicator 57 on the top plate shaft 16 and rotate the cone head 15 one revolution. Make the runout of the cone head 15 less than or equal to 0.03mm, and tighten the external hex bolt 52.

[0120] Step 9: Fix the cylinder front bracket 25 to the bottom of the square box 12 with bolts, install the cylinder 31 on the cylinder rear bracket 30, then tighten the cylinder rear bracket 30 to the large bracket 22 with bolts, adjust the range of the cylinder 31, connect the cylinder front bracket 25 with the movable joint 26, and finally connect the air circuit of the cylinder 31 and the servo motor 14 circuit.

[0121] Step 9.1, as follows Figure 1 As shown, cylinder 31 is installed;

[0122] Step 9.1.1: Secure the cylinder front bracket 25 to the square box 12 with bolts;

[0123] Step 9.1.2: Install cylinder 31 on cylinder rear bracket 30, and then fasten it to large bracket 22 with bolts;

[0124] Step 9.1.3: Adjust the range of cylinder 31 by connecting it with movable joint 26;

[0125] Step 9.2: Connect the air circuit of cylinder 31, the circuit of servo motor 14, etc.

[0126] Step 10, as follows Figure 20 As shown, anti-loosening markings are applied to the bolts.

[0127] Step 10.1, the range of smearing: G side wall plate 46, square box 12, speed reducer 13, servo motor 14, cylinder front support 25 and cylinder rear support 30, all of which are used bolts, and all of which are external hex bolts 52;

[0128] Step 10.2, smearing tool: red marker;

[0129] Step 10.3, smearing method: extending from the center of the external hex bolt 52 outward, penetrating the spring washer 51 and the flat washer 50, and extending 5mm onto the fixing piece 49.

[0130] Step 10.4, requirements:

[0131] Step 10.4.1, the bolt anti-loosening mark is clearly visible, and the width size is 1.5-3mm;

[0132] Step 10.4.2, the mark is uninterrupted, not skewed, not repeated, and double marks are strictly prohibited.

[0133] Step 11, cleaning, adding lubricating grease.

[0134] Step 11.1, as shown in Figure 1 and Figure 13 , unscrew the plug 42 on the oil inlet pipe assembly 4, add an appropriate amount of kerosene or gasoline to the oil chamber II of the gear box, and rotate the top plate shaft 16 by hand to clean. After cleaning, open the speed regulating valve 23 to discharge the cleaning liquid.

[0135] Step 11.2, as shown in Figure 1 , add lubricating grease. Add an appropriate amount of 30# lubricating oil to the oil inlet pipe assembly 4. Unscrew the oil cup 8 and add an appropriate amount of lubricating grease.

[0136] Step 12, test, inspection.

[0137] Step 12.1, turn on the circuit, after the gear box is run-in for 3 to 4 hours, test the temperature with a thermometer, the gear box temperature is less than or equal to 30 degrees Celsius, and there is no abnormal noise.

[0138] Step 12.1, inspection, the inspector inspects qualified products.

[0139] In the above assembly steps, the spring washer 51 and the flat washer 50 are clamped at each bolt fastening position, and the bolt thread must be smeared with lubricating grease.

[0140] The assembly principle of the present application is:

[0141] 1. The run-out of the plate roller 62 is qualified as shown in Figure 19 .

[0142] 1.1, as shown in Figure 6As shown, step 3.1.4. ensures that the top shaft 16 is perpendicular to the corner face D of the large bracket 22, as shown in Figure 14 As shown, the corner face D of the large bracket 22 and the G side wall plate 46 are assembly faces. Step 3.1.4. lays the foundation for the perpendicularity of the top shaft 16 to the rack.

[0143] 1.2, as shown in Figure 15 and Figure 16 Steps 8.2 and 8.3; from the levelness, i.e. the vertical direction, the horizontal two-point two-orientation adjustment makes the top shaft 16 perpendicular to the G side wall plate 46.

[0144] 1.3, as shown in Figure 17 Step 8.4 makes the coaxiality of the two sides of the top shaft 16 meet the requirements.

[0145] 1.4, as shown in Figure 18 and Figure 19 Step 8.5 makes the two sides of the cone head 15 meet the requirements, so that the two sides of the cone head top roll rear roll also meet the requirements.

[0146] 2. Flexibility of the square box 12.

[0147] 2.1, as shown in Figure 2 and Figure 13 Step 2.1 controls the gap between the top shaft 16 and the sliding sleeve 32 to be 0.03-0.05mm. This gap can ensure the flexible rotation of the top shaft 16 and the sliding sleeve 32, and the flexible push-pull. The square box 12 is connected to the top shaft 16, which lays the foundation for the flexibility of the square box 12 in step 6.5.

[0148] 2.2, step 4.2 linear guide rail 29 adjustment as shown in Figure 9 The top shaft 16 is tightly connected to the square box 12, and the linear guide rail sliding seat 28 is tightly connected to the square box 12, as shown in Figure 13 The parallelism adjustment of the linear guide rail and the top shaft 16 is a necessary condition for the flexibility of the square box 12 in step 6.5.

[0149] 3. The gear box mechanism runs for a long time without abnormal noise.

[0150] 3.1, as shown in Figure 2 Step 2.1 uses a gap between the top shaft 16 and the sliding sleeve 32, and the assembly gap at III is selected to be 0.03-0.05mm. If the gap is too small, it will cause the flexibility in step 6.4 to increase, causing the top shaft 16 and the sliding sleeve 32 to generate a large amount of heat and abnormal noise when running. As shown in Figure 2 If the gap is too large, it will cause the mechanism to have a large assembly gap and abnormal noise.

[0151] 3.2, Step 2.1 The gear box part in the working state, the sleeve 32 and the top version shaft 16 are high-speed operation. Therefore, the sleeve 32 and the top version shaft 16 are III gap fit and must retain the original part assembly surface such as electroplating, blueing and other technical requirements, retain the original surface use effect. If the bench repair is used, not only the original surface technical requirements of the sleeve 32 and the top version shaft 16 are damaged, the assembly surface is uneven, but also the abnormal noise is large, so the assembly adopts gap fit, such as the selected assembly shown in Figure 2 .

[0152] 3.3, as shown in Figure 3 and Figure 10 , Step 2.3 locking nut a37 locking torque test; 5.2 locking nut b41 torque test; When the mechanism is running, unqualified locking torque will make the bearing a33, bearing b38 heat sharply and emit abnormal noise.

[0153] 3.4, Step 3.1.1. Bearing gland b19 adopts interference fit with interference amount of 0-0.05mm. Unsuitable fit clearance will make the gap of V and VI in Figure 5c too large, which will make the parts emit abnormal noise. The process adopts the grinding machine repair method, which can ensure the flatness of A surface in Figure 5a , and will not make VI in Figure 5a partially appear gap and emit abnormal noise.

[0154] 3.5, Step 6.4 bearing gland a7 assembly principle, the same as the principle of step 3.4.

[0155] 3.6, Step 4.2 top version shaft 16 and linear guide 29 debugging as shown in Figure 9 . The top version shaft 16 and the linear guide 29 have relative motion relationship, and reasonable assembly position accuracy ensures their flexibility and reduces their heat generation in the movement process.

[0156] 3.7, as shown in Figure 11 and Figure 12 . Steps 6.2 and 6.3 adjust the assembly accuracy of the top version shaft 16 and the speed reducer 13 in the horizontal direction and the coaxial direction, and reduce the excessive heat generation caused by the assembly accuracy not meeting the standard when transmitting power.

[0157] 4. Avoid lubricating oil leakage.

[0158] 4.1, Step 1.1 detection, cleaning and repair, clean oil stains, iron filings, repair parts assembly surface bumps and scratches, which will not cause assembly surface gap and lead to lubricating oil leakage because of oil stains and iron filings in the assembly surface.

[0159] 4.2, as shown in Figure 5aAs shown in the middle VI, step 3.1.3 bearing gland b19 and large bracket 22 assembly surface smear sealant; step 3.2.1. cup 5 and large bracket 22 assembly surface smear sealant; step 3.2.2.2 oil pipe assembly 4 and large bracket 22 connection wrapped raw material band such as Figure 7 As shown in the middle VII; step 3.3 installation of speed regulating valve 23, with the gear box mechanism oil cavity, assembly process are sealed, will not cause the gear box mechanism lubricating oil leakage due to assembly gap.

[0160] 5. Bolt anti-loosening mark.

[0161] 5.1, step 10, for assembly process to do a good job mark can play a check function, avoid bolt missing or forget to tighten.

[0162] 5.2, step 10, equipment in operation or after use can be clearly intuitive to reflect the bolt due to various reasons caused by loosening phenomenon get timely discovery.

Claims

1. A gearbox mechanism for a unit-type gravure printing machine, characterized in that, Includes a top plate shaft (16), on which a first component (20) and a second component (24) are circumferentially sleeved. The first component (20) is circumferentially sleeved with a large bracket (22), and the second component (24) is circumferentially sleeved with a square box (12). The bottom of the square box (12) is connected to a linear guide sliding seat (28). A linear guide (29) is fixedly connected to the large bracket (22). The linear guide (29) is slidably connected to the linear guide sliding seat (28). The bottom of the square box (12) is also connected to a cylinder front bracket (25). A cylinder rear bracket (30) is also fixedly connected to the large bracket (22). A cylinder (31) is connected to the cylinder rear bracket (30). The cylinder (31) has a movable joint (26) at its telescopic end. The movable joint (26) is connected to the cylinder front bracket (25). One end of the top plate shaft (16) is keyed to a cone head (15), and the other end of the top plate shaft (16) is set as a stepped shaft; The first component (20) is sleeved on the top plate shaft (16) near the cone head (15). A bearing cap b (19) is circumferentially sleeved on one side of the first component (20). A sleeve cup (5) is provided on the top plate shaft (16) and on the other side of the first component (20). Both the bearing cap b (19) and the sleeve cup (5) are threaded to the large bracket (22). A cap a (6) is fixedly connected to the side of the sleeve cup (5) away from the large bracket (22). The cap a (6) is threaded to the sleeve cup (5). The sleeve cup (5) is also connected to the oil inlet pipe assembly (4) and the speed control valve (23); the second component (24) The second component (24) is sleeved on the stepped shaft of the top plate shaft (16). A bearing cover a (7) is circumferentially sleeved on the side of the square box (12) away from the square box (12). The bearing cover a (7) is bolted to the square box (12). A reducer (13) and a servo motor (14) are connected in sequence at the end of the square box (12) away from the second component (24). The reducer (13) is connected to the top plate shaft (16) through a coupling (27). The reducer (13) and the servo motor (14) are bolted together. An oil cup (8) is also provided on the square box (12). The oil cup (8) passes through the second component (24). The assembly method of the gearbox mechanism of a unit-type gravure printing press is implemented according to the following steps: Step 1: Check all parts for oil stains, bumps, and scratches; Step 2: Assemble the first component (20), fit the first component (20) with the top plate shaft (16) with clearance, and then assemble the assembled first component (20) and top plate shaft (16) with the large bracket (22); Step 3: Install bearing cap b (19) on one side of the first component (20), and adjust the perpendicularity of the top plate shaft (16) to the right angle surface of the large bracket (22). After the adjustment is completed, perform sealing treatment. Install sleeve cup (5), oil inlet pipe assembly (4) and speed control valve (23) on the other side of the first component (20). When installing sleeve cup (5), oil inlet pipe assembly (4) and speed control valve (23), perform sealing treatment at the connection. Step 4: Install the linear guide rail (29) and adjust it with the top plate shaft (16); Step 5: Assemble the second component (24), remove the top plate shaft (16) from the large bracket (22), and then fit the second component (24) with the top plate shaft (16) with clearance. Step 6: Assemble the square box (12) with the linear guide slide seat (28), assemble the square box (12) circumferentially with the second component (24), connect the bearing cover a (7) with the square box (12), and then perform debugging; Step 7: Install the oil cup (8) on the square box (12), then assemble the proximity switch (9) and proximity switch bracket (10) and install them on the square box (12), and finally install the reducer (13) and servo motor (14). Step 8: Install the gearbox component on the frame, adjust the horizontal and verticality of the top plate shaft (16), and then install the cone head (15) and adjust it. Step 9: Fix the cylinder front bracket (25) to the bottom of the square box (12) with bolts, install the cylinder (31) on the cylinder rear bracket (30), then tighten the cylinder rear bracket (30) to the large bracket (22) with bolts, adjust the range of the cylinder (31) by connecting the movable joint (26) to the cylinder front bracket (25), and finally connect the cylinder (31) air circuit and the servo motor (14) circuit. Step 10: Apply markings to the bolts to check for looseness; In step 3, the specific steps for adjusting the perpendicularity of the top plate shaft (16) and the right angle surface of the large bracket (22) are as follows: insert the top plate shaft (16) into the large bracket (22) and extend it by 200mm. Attach the magnetic base (56) to the top plate shaft (16). Touch the measuring head of the dial indicator (57) to the right angle end face of the large bracket (22). Rotate it one full turn to ensure that the perpendicularity of the top plate shaft (16) and the right angle end face of the large bracket (22) is within 0.02mm. The debugging process in step 6 specifically involves: Attach the magnetic base (56) to the top plate shaft (16), touch the measuring head of the dial indicator (57) to the square box (12), rotate the top plate shaft (16) one turn, and gently tap the square box (12) with a nylon rod or copper rod so that the perpendicularity between the top plate shaft (16) and the square box (12) is less than or equal to 0.10 mm. Attach the magnetic base (56) to the top plate shaft (16), touch the dial indicator (57) to the wall of the hole in the square box (12), rotate the top plate shaft (16), and gently tap the square box (12) with a nylon rod or copper rod to make the coaxiality between the top plate shaft (16) and the hole in the square box (12) less than or equal to 0.10 mm. After the perpendicularity and coaxiality of the top plate shaft (16) and the square box (12) are adjusted to be qualified, the square box (12) is fastened to the linear guide sliding seat (28) with bolts; The flexibility of the push-pull test box (12) is tested by using a pointer-type digital display push-pull scale (58). The test result is less than or equal to 15kg and is considered qualified.

2. The gearbox mechanism of the unit-type gravure printing machine according to claim 1, characterized in that, The first component (20) includes a sliding sleeve (32), which is fitted onto the top plate shaft (16) with a gap. The sliding sleeve (32) is circumferentially fitted with two bearings a (33), and a spacer a (34) is provided between the two bearings a (33). A blocking structure is provided on one side of the sliding sleeve (32), and an extended washer (35), a stop ring a (36), and a locking nut a (37) are sequentially provided on the other side of the sliding sleeve (32) and fitted onto the top plate shaft (16). The extended washer (35) abuts against the side wall of the bearing a (33), and the locking nut a (37) is threadedly connected to the sliding sleeve (32) to limit the axial movement of the bearing a (33). The second component (24) includes two bearings b (38) sleeved around the top plate shaft (16). A spacer b (39) is provided between the two bearings b (38). The spacer b (39) has a through hole for communicating with the oil cup (8). One side of one bearing b (38) abuts against the stepped shaft of the top plate shaft (16). The other bearing b (38) is opposite to the spacer b (39) and sleeved on the top plate shaft (16). A stop ring b (40) and a locking nut b (41) are provided in sequence. The stop ring b (40) abuts against the side wall of the bearing b (38). The locking nut b (41) is threadedly connected to the bearing b (38) to limit the axial movement of the bearing b (38).

3. The gearbox mechanism of the unit-type gravure printing machine according to claim 2, characterized in that, The inner hole of the large bracket (22) is provided with a clamping platform, and the bearing cover b (19) and the clamping platform limit the bearing a (33).

4. The gearbox mechanism of the unit-type gravure printing machine according to claim 3, characterized in that, An O-ring a (2) is provided between the large bracket (22) and the bearing cover b (19); an O-ring b (21) is provided between the large bracket (22) and the sleeve (5); an oil seal a (3) is provided between the sleeve (5) and the cover a (6); a cover b (17) is bolted to the side of the bearing cover b (19) away from the sliding sleeve (32); an oil seal b (18) is provided between the cover b (17) and the bearing cover b (19).

5. The gearbox mechanism of the unit-type gravure printing machine according to claim 1, characterized in that, The specific debugging steps in step 4 are as follows: attach the magnetic base (56) to the linear guide slide (28), touch the measuring head of the dial indicator (57) to the top plate shaft (16), push the linear guide slide (28) back and forth, and tap the linear guide (29) lightly with a nylon rod to make the parallelism between the top plate shaft (16) and the linear guide (29) within 0.02mm.

6. The gearbox mechanism of the unit-type gravure printing machine according to claim 1, characterized in that, In step 8, the specific adjustment of the cone (15) is as follows: use a magnetic base (56) and a dial indicator (57) to check the runout of the cone (15). The runout is less than or equal to 0.03mm and is considered qualified.

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