Reduction gear for ink transfer roller of printing machine

Abstract

The utility model provides a printing machine ink transfer roller speed reducer which comprises a speed reducer body and an ink transfer roller body inserted in the speed reducer body, the speed reducer body comprises a machine shell, a detachable machine cover is arranged in the machine shell, the machine cover is arranged in the machine shell in a matched mode and fixed through a bolt, and the machine cover is connected with the machine shell in a matched mode. The machine cover is provided with an adjusting groove and symmetrically-arranged locking grooves, the symmetrically-arranged locking grooves are located in the upper side and the lower side of the adjusting groove, a main gear, a first reduction gear and a second reduction gear are arranged in the machine shell, and the first reduction gear and the second reduction gear can be replaced. The main gear is connected with the ink transfer roller body, an adjustable driving assembly is arranged at the left end of the machine cover, and the driving assembly can be connected with the first reduction gear or the second reduction gear. According to the ink transfer roller, the rotating speed of the ink transfer roller body can be adjusted, and the phenomenon of ink flying caused by too high speed of the ink transfer roller body is prevented.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of printing machines, in particular to a speed reducing device for an ink transfer roller of a printing machine. Background Art

[0002] A printing press is a machine that prints text and images. There are many types of printing presses on the market, but there are still some common problems, especially: the ink transfer roller rotates too fast during high-speed production of the printing press, causing ink flying, which will affect the environment and production;

[0003] For example, the utility model patent with application number: CN202878900U discloses an ink stirring device capable of rainbow printing. Between the two side wall panels, an ink stick, an ink transfer stick, a first ink stirring stick, and a second ink stirring stick are installed from top to bottom, and an ink tank is installed on the upper end of the ink stick. The ink stick and the ink tank are installed at the top between the two wall panels. When multi-color rainbow printing is required, an isolation block is installed in the ink tank in the forward direction. When the machine rotates, the ink is transferred from the ink stick to the rubber ink transfer stick and then enters the ink stirring system, so as to achieve stable working state and reliable performance.

[0004] The inventor believes that although the above device has the advantages of stable working state and reliable performance, in actual use, the device may cause ink flying due to excessive rotation speed, and there are certain defects in use. Utility Model Content

[0005] The utility model mainly provides a deceleration device for an ink transfer roller of a printing press, which is used to solve the technical problems raised in the above-mentioned background technology.

[0006] The technical solution adopted by the utility model to solve the above technical problems is:

[0007] A reduction gear for an ink transfer roller of a printing press comprises a reduction gear and an ink transfer roller body inserted into the reduction gear, the reduction gear comprises a casing, a detachable cover is arranged inside the casing, the cover fits inside the casing and is fixed by bolts, an adjustment groove and symmetrically arranged locking grooves are arranged on the cover, the symmetrically arranged locking grooves are located on the upper and lower sides of the adjustment groove, a main gear, a first reduction gear and a second reduction gear are respectively arranged inside the casing, the first reduction gear and the second reduction gear are replaceable, the main gear is connected to the ink transfer roller body, an adjustable drive assembly is arranged on the left end of the cover, and the drive assembly can be connected to the first reduction gear or the second reduction gear.

[0008] Preferably, the main gear, the first reduction gear and the second reduction gear are all provided with through holes, and the inner walls of the through holes are provided with concave positioning grooves.

[0009] Preferably, the number of teeth of the main gear is 36, the number of teeth of the first reduction gear is 26, and the number of teeth of the second reduction gear is 18.

[0010] Preferably, the driving assembly includes a motor, and an insertion shaft is provided at one end of the motor output shaft passing through the adjustment slot and at the left end of the ink transfer roller body, and a positioning block is provided on the outer wall of the insertion shaft, the insertion shaft can be inserted into the through hole, and the positioning block can be inserted into the positioning slot.

[0011] Preferably, the insertion shaft and the through hole, the positioning block and the positioning groove are all interference fit.

[0012] Preferably, fixing components are symmetrically arranged on the outer wall of the motor.

[0013] Preferably, the fixing assembly comprises a fixing block, the left and right end faces of the fixing block are provided with through threaded holes, a screw is provided in the threaded hole, and a locking disk is provided at the right end of the screw.

[0014] Preferably, a round button is provided at the other end of the screw rod, and an inwardly recessed hexagonal hole is provided on the left end surface of the round button.

[0015] Preferably, a round button is provided at the other end of the screw rod, and an inwardly recessed hexagonal hole is provided on the left end surface of the round button.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. By setting a deceleration device, the rotation speed of the ink transfer roller body can be controlled during use, avoiding the occurrence of non-ink due to excessive speed.

[0018] 2. By setting the first reduction gear and the second reduction gear meshing with the main gear, the first reduction gear or the second reduction gear can be selected as needed to change the rotation speed of the main gear (ie, the rotation speed of the ink transfer roller) to meet the use requirements during printing.

[0019] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the ink transfer roller body of Example 1 of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the driving assembly of Example 1 of the utility model;

[0023] Figure 4 This is a cross-sectional view of the main gear, the first reduction gear, and the second reduction gear of Example 1 of the utility model;

[0024] Figure 5 This is a cross-sectional view of the casing of Embodiment 1 of the present utility model;

[0025] Figure 6 It is an enlarged view of point A of Example 1 of the utility model;

[0026] Figure 7 This is an enlarged view of point B of Example 1 of the utility model.

[0027] In the figure: 1. reduction gear; 11. casing; 12. cover; 121. adjustment slot; 122. locking slot; 13. bolt; 14. main gear; 15. first reduction gear; 16. second reduction gear; 17. through hole; 171. positioning slot; 2. ink transfer stick body; 3. drive assembly; 31. motor; 4. plug-in shaft; 41. positioning block; 5. fixing assembly; 51. fixing block; 52. threaded hole; 521. screw; 522. locking disk; 523. round button; 524. hexagon socket hole. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly connected by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0030] Embodiment 1:

[0031] Please pay attention to Figures 1 to 7A printing press ink transfer roller speed reducer 1 comprises a speed reducer 1 and an ink transfer roller body 2 inserted into the speed reducer 1, the speed reducer 1 comprises a casing 11, a detachable machine cover 12 is arranged inside the casing 11, the machine cover 12 fits inside the casing 11 and is fixed by bolts 13, an adjustment groove 121 and a symmetrically arranged locking groove 122 are arranged on the machine cover 12, the symmetrically arranged locking grooves 122 are located at the upper and lower sides of the adjustment groove 121, a main gear 14, a first reduction gear 15, and a second reduction gear 16 are respectively arranged inside the casing 11, the first reduction gear 15 and the second reduction gear 16 are replaceable, the main gear 14 is connected to the ink transfer roller body 2, an adjustable driving assembly 3 is arranged at the left end of the machine cover 12, and the driving assembly 3 can be connected to the first reduction gear 15 or the second reduction gear 16.

[0032] Specifically, the reduction device 1 can control the rotation speed of the ink transfer roller body 2 during use to avoid ink flying during the ink transfer process, and the driving component 3 can drive the first reduction gear 15 and the second reduction gear 16 to rotate.

[0033] Please pay attention to Figure 4 The main gear 14, the first reduction gear 15 and the second reduction gear 16 are all provided with a through hole 17, and the inner wall of the through hole 17 is provided with a concave positioning groove 171. This design can conveniently install the main gear 14, the first reduction gear 15 and the second reduction gear 16.

[0034] The number of teeth of the main gear 14 is 36, the number of teeth of the first reduction gear 15 is 26, and the number of teeth of the second reduction gear 16 is 18. The design of the number of teeth can control the rotation speed of the main gear 14.

[0035] Please pay attention to Figure 3 The driving assembly 3 includes a motor 31, and an output shaft of the motor 31 is provided with an insertion shaft 4 at one end passing through the adjustment groove 121 and the left end of the ink transfer roller body 2. A positioning block 41 is provided on the outer wall of the insertion shaft 4. The insertion shaft 4 can be inserted into the through hole 17, and the positioning block 41 can be inserted into the positioning groove 171. This design can connect the main gear 14, the first reduction gear 15, and the second reduction gear 16.

[0036] The insertion shaft 4 and the through hole 17 , the positioning block 41 and the positioning groove 171 are all interference fit, and this design can make the connection between the main gear 14 , the first reduction gear 15 , and the second reduction gear 16 more stable.

[0037] Please pay attention to Figure 7 The outer wall of the motor 31 is symmetrically provided with fixing components 5, and this design can fix the motor 31.

[0038] The fixing assembly 5 includes a fixing block 51 , and the left and right end surfaces of the fixing block 51 are provided with through threaded holes 52 . A screw 521 is provided in the threaded hole 52 , and a locking disk 522 is provided at the right end of the screw 521 . This design can lock the motor 31 .

[0039] A round button 523 is disposed at the other end of the screw rod 521 , and an inwardly recessed hexagonal hole 524 is disposed on the left end surface of the round button 523 . This design enables the screw rod 521 to be rotated conveniently.

[0040] It should be noted that the power source of the motor 31 of the present embodiment is not limited and can be directly connected to a power cord. The power supply of the above-mentioned motor 31 is a technical means well known to those skilled in the art. The specific connection and control sequence should refer to the following working principle. The electrical connection between the electrical components is completed in a sequential working order. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process, and no further explanation of the electrical control is given.

[0041] The specific operation method of the utility model is as follows: according to the required speed of the ink transfer roller body 2, the first reduction gear 15 or the second reduction gear 16 is selected. After the selection is made, the through hole 17 and the positioning groove 171 of the first reduction gear 15 or the second reduction gear 16 are aligned with the plug shaft 4 and the positioning block 41 of the motor 31, and the plug shaft 4 and the positioning block 41 are inserted into the through hole 17 and the positioning groove 171 to complete the installation of the first reduction gear 15 or the second reduction gear 16. After the installation is completed, the machine cover 12 is buckled inside the machine housing 11, and the position of the motor 31 is adjusted to make the first reduction gear 15 or the second reduction gear 16 mesh with the main gear 14;

[0042] After the first reduction gear 15 or the second reduction gear 16 is meshed with the main gear 14, select an inner hexagonal wrench, insert it into the inner hexagonal hole 524, and then rotate it to make the locking disk 522 clamp the inner wall of the machine cover 12. After it is fixed, tighten the bolt 13 and fix the machine cover 12.

[0043] When in use: connect the motor 31 to the power supply, the motor 31 drives the first reduction gear 15 or the second reduction gear 16 to rotate, the rotating first reduction gear 15 or the second reduction gear 16 rotates and meshes with the main gear 14, so that the main gear 14 rotates, (because the number of teeth of the rotating first reduction gear 15 or the second reduction gear 16 is less than the number of teeth of the main gear 14, the main gear 14 will rotate relatively slowly to achieve the function of reducing the speed of the ink transfer roller body 2), the rotating main gear 14 drives the ink transfer roller body 2 to rotate, and the ink transfer operation can start.

[0044] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A speed reducer (1) for an ink transfer roller of a printing press, comprising a speed reducer (1) and an ink transfer roller body (2) inserted into the speed reducer (1), characterized in that: The deceleration device (1) comprises a housing (11), a detachable cover (12) is arranged inside the housing (11), the cover (12) fits inside the housing (11) and is fixed by bolts (13), an adjustment slot (121) and symmetrically arranged locking slots (122) are arranged on the cover (12), the symmetrically arranged locking slots (122) are located at the upper and lower sides of the adjustment slot (121), a main gear (14), a first reduction gear (15) and a second reduction gear (16) are arranged inside the housing (11), the first reduction gear (15) and the second reduction gear (16) are replaceable, the main gear (14) is connected to the ink transfer roller body (2), and an adjustable driving assembly (3) is arranged at the left end of the cover (12), the driving assembly (3) can be connected to the first reduction gear (15) or the second reduction gear (16).

2. A printing press ink transfer roller deceleration device (1) according to claim 1, characterized in that: The main gear (14), the first reduction gear (15) and the second reduction gear (16) are all provided with a through hole (17), and the inner wall of the through hole (17) is provided with an inwardly concave positioning groove (171).

3. A printing press ink transfer roller deceleration device (1) according to claim 2, characterized in that: The number of teeth of the main gear (14) is 36, the number of teeth of the first reduction gear (15) is 26, and the number of teeth of the second reduction gear (16) is 18.

4. A printing press ink transfer roller deceleration device (1) according to claim 3, characterized in that: The driving assembly (3) comprises a motor (31), and an output shaft of the motor (31) passes through one end of the adjusting groove (121) and the left end of the ink transfer roller body (2) and is provided with an insertion shaft (4), and an outer wall of the insertion shaft (4) is provided with a positioning block (41), the insertion shaft (4) can be inserted into the through hole (17), and the positioning block (41) can be inserted into the positioning groove (171).

5. A printing press ink transfer roller deceleration device (1) according to claim 4, characterized in that: The insertion shaft (4) and the through hole (17), as well as the positioning block (41) and the positioning groove (171) are all interference fit.

6. A printing press ink transfer roller deceleration device (1) according to claim 4, characterized in that: The outer wall of the motor (31) is symmetrically provided with fixing components (5).

7. A printing press ink transfer roller deceleration device (1) according to claim 6, characterized in that: The fixing assembly (5) comprises a fixing block (51), the left and right end surfaces of the fixing block (51) are provided with through threaded holes (52), a screw rod (521) is provided in the threaded hole (52), and a locking disk (522) is provided at the right end of the screw rod (521).

8. A printing press ink transfer roller deceleration device (1) according to claim 7, characterized in that: The other end of the screw rod (521) is provided with a round button (523), and the left end surface of the round button (523) is provided with an inwardly recessed hexagonal hole (524).

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