Plate roller axial adjusting mechanism of printing equipment

Abstract

The utility model relates to a printing roller axial adjusting mechanism of printing equipment, a movable support is provided with a printing roller shaft, the movable support is movably connected to a supporting frame, the moving direction of the movable support is parallel to the axis of the printing roller shaft, and the axial relative position between the printing roller shaft and the movable support is kept unchanged. An axial distance adjusting device is further arranged between the supporting frame and the movable support, the axis of a rotating lead screw of the axial distance adjusting device is parallel to the axis of the printing roller shaft, the rotating lead screw is in transmission connection with the nut, and the rotating lead screw is in transmission connection with a rotation driving device. The movable support is arranged on the supporting frame, the movable support can axially move on the supporting frame, the axial distance adjusting device is used for adjusting the axial position of the movable support in a matched mode, and therefore the axial position of the plate roller shaft is adjusted, and the axial position of a plate roller installed on the plate roller shaft is also adjusted. Wherein the axial distance adjusting device is in matched transmission through a rotating lead screw and a nut, and the precision is relatively high.

Description

Technical Field

[0001] The utility model relates to an axial adjustment mechanism for a plate roller of a printing device. Background Art

[0002] In printing equipment, the plate roller (including the plate roller shaft) needs to be driven to rotate to cooperate with printing. In addition, in order to adjust the printing position, such as the color registration of different printing units, the axial position of the plate roller needs to be adjusted. It is important to use a reasonable structure for axial position adjustment; in addition, the stability and balance of the axial position adjustment are also crucial. Utility Model Content

[0003] In view of the technical problems existing in the background technology, the technical problem solved by the utility model is to provide an axial adjustment mechanism for a plate roller of a printing device for realizing axial position adjustment.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions: an axial adjustment mechanism of a plate roller of a printing equipment comprises a support frame and a movable support, a plate roller shaft is arranged on the movable support, a first bearing for supporting the rotation of the plate roller shaft is also arranged between the plate roller shaft and the movable support, the movable support is movably connected and arranged on the support frame, the movable direction of the movable support is arranged parallel to the axis of the plate roller shaft, and the axial relative position between the plate roller shaft and the movable support remains unchanged, and is characterized in that: an axial spacing adjustment device is also arranged between the support frame and the movable support, the axial spacing adjustment device comprises a rotating screw and a nut, the axis of the rotating screw is arranged parallel to the axis of the plate roller shaft, the rotating screw is transmission-connected to the nut, and the rotating screw is transmission-connected to the rotating driving device; one of the support frame and the movable support is connected to the nut, and the other is connected to the rotating screw and the axial relative position between the rotating screw and the rotating screw remains unchanged.

[0005] The following various optimizations or supplementary explanations can be made on the above technical solutions respectively.

[0006] For example, at least two axial spacing adjustment devices are provided, wherein a driving wheel is provided on the rotating screw of one of the axial spacing adjustment devices, and the rotating screw is connected to the rotating driving device through the driving wheel; the rotating screws in each axial spacing adjustment device are connected to each other through a transmission assembly.

[0007] For example, the transmission assembly includes a transmission wheel arranged on each rotating screw, the axial relative position between each rotating screw and the corresponding transmission wheel remains unchanged, and the transmission wheels on each rotating screw are connected to each other by transmission; the transmission wheels are connected to each other by a gear transmission structure or a belt transmission structure, and the transmission wheel adopts a gear or a pulley.

[0008] Among them, the rotating screw is arranged circumferentially with the axis of the plate roller shaft as the center, and the transmission assembly includes a rotating center gear and a transmission wheel arranged on each rotating screw, the transmission wheel adopts a gear, and the axial relative position between each rotating screw and the corresponding transmission wheel remains unchanged; the rotating center gear is installed on a movable bracket or a support frame; the axial relative position between the rotating center gear and the movable bracket remains unchanged, or the axial relative position between the rotating center gear and the support frame remains unchanged; the transmission wheels are arranged circumferentially with the axis of the rotating center gear as the center, and the rotating center gear is respectively connected with each transmission wheel in meshing transmission, and the rotating center gear is coaxially arranged with the plate roller shaft.

[0009] In addition, when the transmission wheel and the rotating center gear have axial relative displacement during the adjustment process, the transmission wheel and the rotating center gear are respectively driven by spur gears.

[0010] Among them, the rotation drive device includes a power motor, a driving wheel is arranged on the rotating screw, the driving wheel is transmission-connected with the power motor, and the power motor is connected to a support frame or a movable bracket.

[0011] For example, the nut is fixedly connected to the movable bracket, the rotating screw is connected to the support frame and the relative axial position remains unchanged, and the rotating screw is equipped with a second bearing for supporting its rotation, and the second bearing is arranged on the support frame.

[0012] The rotary drive device includes a power motor, a driving wheel is arranged on the rotating screw, the power motor is transmission-connected with an output component, and the output component is transmission-connected with the driving wheel; the power motor is connected to the support frame.

[0013] For example, the output component includes a transmission worm, and the support frame is also connected to a worm rotation support seat, and the transmission worm is arranged on the worm rotation support seat; the driving wheel adopts a worm wheel, and the transmission worm is connected to the worm wheel.

[0014] Further optimization, an axial guide rod is further provided between the support frame and the movable bracket, and the axial guide rod cooperates with the axial guidance of the support frame and / or the movable bracket; the movable bracket is located on the rear side of the support frame, and the rear part of the movable bracket is also connected to a plate roller rotation drive motor, and the plate roller rotation drive motor is connected to the plate roller shaft transmission connection; the support frame includes a support sleeve, and the movable bracket includes a movable sleeve, the movable sleeve is slidably connected to the support sleeve, and the plate roller shaft is connected to the movable sleeve.

[0015] The beneficial effect of the utility model is that a reasonable layout structure is formed in the axial adjustment mechanism of the plate roller of the printing equipment, and a movable bracket is set on the support frame. The movable bracket can move axially on the support frame, and the axial spacing adjustment device is used to cooperate with the movable bracket to adjust the axial position, thereby realizing the axial position adjustment of the plate roller shaft, and the axial position of the plate roller installed on the plate roller shaft will also be adjusted, wherein the axial spacing adjustment device uses a rotating screw and a nut to cooperate with the transmission, and the accuracy is relatively high. In addition, the axial adjustment mechanism of the plate roller of the printing equipment can even be connected to the printing equipment with the support frame as a whole, which is more practical. In the subsequent further optimization, an axial spacing adjustment device can be added, and even multiple axial spacing adjustment devices can be connected to each other for linkage, so that the transmission force is balanced, the adjustment accuracy is high, and the transmission is smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following describes the relevant details and working principles of the implementation methods and embodiments of the present utility model in conjunction with the accompanying drawings.

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of an embodiment of a rotary drive device and a drive wheel.

[0019] Figure 3 The present invention is a structural schematic diagram of an embodiment of a transmission connection structure between rotating screw rods.

[0020] In the figure: 1. support frame; 2. movable bracket; 3. plate roller shaft; 4. first bearing; 5. axial spacing adjustment device; 6. rotating screw; 7. nut; 8. rotating drive device; 9. driving wheel; 10. transmission assembly; 11. transmission wheel; 12. rotating center gear; 13. power motor; 14. second bearing; 15. output component; 16. transmission worm; 17. worm rotation support seat; 18. axial guide rod; 19. plate roller rotation drive motor; 33. copper pad; 34. locking nut; 35. coupling; 36. locking nut; 37. coupling; 38. bearing cover; 39. spacer. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the implementation of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field without making creative work based on the embodiments of the utility model are within the scope of protection of the utility model.

[0022] Referring to the accompanying drawings, the plate roller axial adjustment mechanism of the printing equipment in the embodiment of the present embodiment includes a support frame 1 and a movable support 2; a plate roller shaft 3 is provided on the movable support 2, and a first bearing 4 for supporting the rotation of the plate roller shaft 3 is also provided between the plate roller shaft 3 and the movable support 2, so that the movable support 2 can smoothly support the rotation of the plate roller shaft 3; the movable support 2 is movably connected and arranged on the support frame 1, and the movable direction of the movable support 2 is arranged parallel to the axis of the plate roller shaft 3, that is, the movable support 2 can be axially moved on the support frame 1, so as to realize the axial position adjustment of the movable support 2, the plate roller shaft 3, etc.; the axial relative position between the plate roller shaft 3 and the movable support 2 remains unchanged, and the plate roller shaft 3 and the movable support 2 can be synchronously moved axially, and the axial position adjustment is performed together.

[0023] An axial spacing adjustment device 5 is provided between the support frame 1 and the movable support 2 , and the axial spacing adjustment device 5 cooperates to drive the movable support 2 to move axially on the support frame 1 to adjust the axial position of the movable support 2 and the plate roller shaft 3 .

[0024] Among them, the axial spacing adjustment device 5 includes a rotating screw 6 and a nut 7. The axis of the rotating screw 6 is arranged parallel to the axis of the plate roller shaft 3. The rotating screw 6 is transmission connected to the nut 7 to achieve transmission coordination. The rotating screw 6 is transmission connected to the rotating drive device 8, and the rotating screw 6 is driven by the rotating drive device 8 to rotate.

[0025] One of the support frame 1 and the movable support 2 is connected to the nut 7, and the other is connected to the rotating screw 6, and the axial relative position between the support frame 1 and the rotating screw 6 remains unchanged. For example, the support frame 1 is connected to the nut 7, and the movable support 2 is connected to the rotating screw 6, and the axial relative position between the movable support 2 and the rotating screw 6 remains unchanged; for another example, the movable support 2 is connected to the nut 7, and the support frame 1 is connected to the rotating screw 6, and the axial relative position between the support frame 1 and the rotating screw 6 remains unchanged.

[0026] Its working principle is that a movable bracket 2 is arranged on the support frame 1, and the movable bracket 2 cooperates with the support roller shaft 3 to rotate through the first bearing 4, and the axial positions of the movable bracket 2 and the roller shaft 3 are adjusted synchronously. The rotating screw 6 and the nut 7 are respectively arranged on the support frame 1 and the movable bracket 2. When adjusting, the rotating screw 6 is driven to rotate by the rotating driving device 8, and the nut 7 cooperates to realize the axial position adjustment of the movable bracket 2 on the support frame 1, and the axial position adjustment of the roller shaft 3 is realized. The rotating driving device 8 can be equipped with a power source or a manual structure.

[0027] In the axial adjustment mechanism of the plate roller of the printing device, a reasonable layout structure is formed, the movable bracket 2 is set on the support frame 1, the movable bracket 2 can move axially on the support frame 1, and the axial position adjustment of the plate roller shaft 3 is achieved by the axial spacing adjustment device 5, and the axial position of the plate roller installed on the plate roller shaft 3 will also be adjusted, wherein the axial spacing adjustment device 5 uses the rotating screw 6 and the screw nut 7 to cooperate with each other for transmission, and the accuracy is relatively high. In addition, the axial adjustment mechanism of the plate roller of the printing device can even be assembled and connected with the support frame 1 as a whole in the printing device, which is more practical.

[0028] The following optimization or further explanation may be performed based on the above embodiments.

[0029] For example, at least two axial spacing adjustment devices 5 are provided, which makes the adjustment operation more stable and balanced, and avoids problems such as jamming, unilateral wear, and deviation caused by unilateral force; among the two or more axial spacing adjustment devices 5, a driving wheel 9 is provided on the rotating screw 6 of one of the axial spacing adjustment devices 5, and the rotating screw 6 is connected to the rotating drive device 8 through the driving wheel 9, and the rotating screws 6 in each axial spacing adjustment device 5 are connected to each other through the transmission assembly 10, and the rotating drive device 8 is used to drive the driving wheel 9 to rotate, thereby driving the rotating screw 6 in one of the axial spacing adjustment devices 5 to rotate, and the rotating screw 6 of the other axial spacing adjustment devices 5 are driven to rotate together through the transmission assembly 10, and only one rotating drive device 8 is required to cooperate with the transmission assembly 10 to drive multiple axial spacing adjustment devices 5 to operate together, so as to realize the axial position adjustment of the movable bracket 2 on the support frame 1, and realize the axial position adjustment of the plate roller shaft 3, so as to realize more stable and balanced operation, better mechanical coordination and synchronization, and relatively simple operation.

[0030] For example, the transmission assembly 10 includes a transmission wheel 11 arranged on each rotating screw rod 6, and each rotating screw rod 6 and the corresponding transmission wheel 11 can rotate synchronously. The axial relative position between each rotating screw rod 6 and the corresponding transmission wheel 11 remains unchanged, and the transmission wheels 11 on each rotating screw rod 6 are connected to each other by transmission, that is, the transmission wheel 11 on the rotating screw rod 6 and the transmission wheel 11 on another rotating screw rod 6 are connected to each other by transmission; the transmission wheels 11 are connected to each other (that is, the transmission wheels 11 and the transmission wheels 11) through a gear transmission structure or a belt transmission structure, and the corresponding transmission wheel 11 adopts a gear or a pulley.

[0031] For example, in the figure, the transmission wheels 11 adopt a gear transmission structure with each other, specifically, the transmission assembly 10 includes a rotating central gear 12 and a transmission wheel 11 arranged on each rotating screw 6, the transmission wheel 11 adopts a gear, and the rotating screw 6 is circumferentially arranged with the axis of the plate roller shaft 3 as the center, that is, the spacing between each rotating screw 6 and the axis of the plate roller shaft 3 is the same, and the axial relative position between each rotating screw 6 and the corresponding transmission wheel 11 remains unchanged; the rotating central gear 12 is installed on the movable bracket 2 or the support frame 1, and the rotating central gear 12 is supported by the movable bracket 2 or the support frame 1 for rotation, and bearings or copper pads 33 can be configured for rotating support of the rotating central gear 12; the axial relative position between the rotating central gear 12 and the movable bracket 2 remains unchanged, or the axial relative position between the rotating central gear 12 and the support frame 1 remains unchanged, and the operation is relatively stable; the transmission wheels 11 are circumferentially arranged with the axis of the rotating central gear 12 as the center, and the rotating central gear 12 is respectively connected with each transmission wheel 11 by meshing transmission, and the rotating central gear 12 is coaxially arranged with the plate roller shaft 3. The structure is relatively more compact, and the support frame 1 or the movable support 2 is used as the supporting structure for the rotation of the rotating center gear 12, and the rotating center gear 12 is used to drive and connect the various transmission wheels 11, and multiple axial spacing adjustment devices 5 can be configured at appropriate positions around the rotating center gear 12 as needed. In addition, when the transmission wheel 11 and the rotating center gear 12 have axial relative displacement during the adjustment process, the transmission wheel 11 and the rotating center gear 12 are respectively driven by spur gears to achieve smooth axial displacement and adjustment.

[0032] For another example, the rotary drive device 8 includes a power motor 13 (such as a servo motor, etc.), a driving wheel 9 is provided on the rotating screw 6, the driving wheel 9 is transmission-connected to the power motor 13, the power motor 13 is connected to the support frame 1 or the movable bracket 2, and the driving wheel 9 is driven by the power motor 13 to rotate, thereby driving the rotating screw 6 to operate.

[0033] For example, in the figure, the distribution implementation method of the nut 7 and the rotating screw 6 is that the nut 7 is fixedly connected to the movable bracket 2, the rotating screw 6 is connected to the support frame 1 and the relative axial position remains unchanged, the rotating screw 6 is equipped with a second bearing 14 for supporting its rotation, and the second bearing 14 is arranged on the support frame 1, that is, there is also a second bearing 14 for supporting the rotation of the rotating screw 6 between the rotating screw 6 and the support frame 1. In the structure of this implementation, the rotating screw 6 will not be axially displaced during operation, and is relatively more stable. Among them, the rotary drive device 8 includes a power motor 13, a driving wheel 9 is provided on the rotating screw 6, and the power motor 13 is connected to the output component 15 in a transmission connection, and the output component 15 is connected to the driving wheel 9 in a transmission connection; the power motor 13 can be connected to the support frame 1, and the weight of the power motor 13 is directly borne by the support frame 1, which has a better transmission stability than the rotating screw 6 in the structure of this implementation. Among them, there are many types of output components 15. For example, the output component 15 includes a transmission worm 16. A worm rotation support seat 17 is also connected to the support frame 1 to cooperate with and support the rotation of the transmission worm 16. The transmission worm 16 is arranged on the worm rotation support seat 17. The driving wheel 9 adopts a worm gear. The transmission worm 16 is connected to the worm gear transmission. After the transmission is completed, it can self-lock to make the relative position more stable.

[0034] It can also be further optimized. An axial guide rod 18 is also provided between the support frame 1 and the movable support 2. The axial guide rod 18 cooperates with the axial guidance of the support frame 1 and / or the movable support 2. The movable support 2 is more stable and runs more smoothly when it moves axially relative to the support frame 1; the support frame 1 is located on the front side of the movable support 2, and the movable support 2 is located on the rear side of the support frame 1; the rear part of the movable support 2 is also connected to a plate roller rotation drive motor 19 (which can be equipped with a reducer); the plate roller rotation drive motor 19 is transmission-connected to the plate roller shaft 3, and the plate roller shaft 3 is driven by the plate roller rotation drive motor 19 to rotate, and the plate roller rotation drive motor 19 can directly move and adjust the position with the movable support 2 and can smoothly realize the drive of the plate roller shaft 3; the support frame 1 includes a support sleeve, and the movable support 2 includes a movable sleeve, the movable sleeve is slidably and movably sleeved on the support sleeve, and the plate roller shaft 3 is sleeved on the movable sleeve, the structure is relatively reasonable, and the sleeve-connected method has good structural strength.

Claims

1. A plate roller axial adjustment mechanism for a printing device comprises a support frame (1) and a movable support frame (2), wherein a plate roller shaft (3) is arranged on the movable support frame (2), and a first bearing (4) for supporting the plate roller shaft (3) to rotate is arranged between the plate roller shaft (3) and the movable support frame (2), wherein the movable support frame (2) is movably connected to the support frame (1), and the movable direction of the movable support frame (2) is arranged parallel to the axis of the plate roller shaft (3), The axial relative positions of the plate roller shaft (3) and the movable bracket (2) remain unchanged, and the characteristics are: An axial spacing adjustment device (5) is also provided between the support frame (1) and the movable support (2). The axial spacing adjustment device (5) comprises a rotating screw (6) and a nut (7). The axis of the rotating screw (6) is arranged parallel to the axis of the plate roller shaft (3), the rotating screw (6) is transmission-connected to the screw nut (7), and the rotating screw (6) is transmission-connected to the rotating drive device (8); One of the support frame (1) and the movable support (2) is connected to the nut (7), and the other is connected to the rotating screw rod (6), and the axial relative position between the support frame (1) and the movable support (2) remains unchanged.

2. The axial adjustment mechanism of the printing roller of the printing equipment according to claim 1, characterized in that: At least two axial spacing adjustment devices (5) are provided. A driving wheel (9) is provided on a rotating screw (6) of one of the axial spacing adjustment devices (5), and the rotating screw (6) is connected to the rotating driving device (8) through the driving wheel (9); The rotating screws (6) in the various axial spacing adjustment devices (5) are connected to each other via a transmission assembly (10).

3. The axial adjustment mechanism of the printing roller of the printing equipment according to claim 2, characterized in that: The transmission assembly (10) comprises a transmission wheel (11) arranged on each rotating screw rod (6). The axial relative positions of each rotating screw (6) and the corresponding transmission wheel (11) remain unchanged. The transmission wheels (11) on the respective rotating screw rods (6) are connected to each other in a transmission manner; The transmission wheels (11) are connected to each other through a gear transmission structure or a belt transmission structure. The transmission wheel (11) is a gear or a pulley.

4. The axial adjustment mechanism of the printing roller of the printing equipment according to claim 2, characterized in that: The rotating screw (6) is arranged circumferentially with the axis of the plate roller shaft (3) as the center. The transmission assembly (10) comprises a rotating central gear (12) and a transmission wheel (11) arranged on each rotating screw rod (6), wherein the transmission wheel (11) is a gear. The axial relative positions between each rotating screw (6) and the corresponding transmission wheel (11) remain unchanged; The rotating central gear (12) is mounted on the movable bracket (2) or the supporting frame (1); The axial relative positions of the rotating central gear (12) and the movable bracket (2) remain unchanged, or the axial relative positions of the rotating central gear (12) and the support bracket (1) remain unchanged; The transmission wheels (11) are arranged circumferentially with the axis of the rotating central gear (12) as the center. The rotating central gear (12) is respectively meshed and connected to each transmission wheel (11). The rotating central gear (12) is coaxially arranged with the plate roller shaft (3).

5. The axial adjustment mechanism of the printing roller of the printing equipment according to claim 4, characterized in that: When the transmission wheel (11) and the rotating center gear (12) have an axial relative displacement during the adjustment process, the transmission wheel (11) and the rotating center gear (12) are respectively driven by spur gears.

6. The axial adjustment mechanism of the plate roller of the printing equipment according to claim 1, characterized in that: The rotary drive device (8) comprises a power motor (13). A driving wheel (9) is provided on the rotary screw (6). The driving wheel (9) is in transmission connection with the power motor (13). The power motor (13) is connected to the support frame (1) or the movable support (2).

7. The axial adjustment mechanism of the plate roller of the printing equipment according to claim 1, characterized in that: The nut (7) is fixedly connected to the movable bracket (2), the rotating screw rod (6) is connected to the support frame (1) and the relative axial position thereof remains unchanged, the rotating screw rod (6) is provided with a second bearing (14) for supporting the rotation thereof, and the second bearing (14) is arranged on the support frame (1).

8. The axial adjustment mechanism of the plate roller of the printing equipment according to claim 7, characterized in that: The rotary drive device (8) comprises a power motor (13), a driving wheel (9) is provided on the rotary screw rod (6), the power motor (13) is drivingly connected to an output component (15), and the output component (15) is drivingly connected to the driving wheel (9); the power motor (13) is connected to the support frame (1).

9. The axial adjustment mechanism of the printing roller of the printing equipment according to claim 8, characterized in that: The output component (15) includes a transmission worm (16). The support frame (1) is also connected to a worm rotation support seat (17). The transmission worm (16) is arranged on the worm rotation support seat (17). The driving wheel (9) is a worm gear, and the driving worm (16) is drivingly connected to the worm gear.

10. The plate roller axial adjustment mechanism of the printing equipment according to claim 1, characterized in that: An axial guide rod (18) is also provided between the support frame (1) and the movable support (2), and the axial guide rod (18) cooperates with the support frame (1) and / or the movable support (2) for axial guidance; the movable support (2) is located at the rear side of the support frame (1), and a plate roller rotation drive motor (19) is also connected to the rear of the movable support (2), and the plate roller rotation drive motor (19) is transmission-connected to the plate roller shaft (3); the support frame (1) includes a support sleeve, and the movable support (2) includes a movable sleeve, the movable sleeve is slidably and movably sleeved on the support sleeve, and the plate roller shaft (3) is sleeved on the movable sleeve.

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