A rounding machine for processing printing rollers

Abstract

This utility model relates to the field of gravure roller forming technology, and in particular to a rounding machine for processing printing rollers. The machine includes a machine base with a first lower roller and a second lower roller arranged at intervals, which rotatably support the printing roller. The machine base also includes a guide upper roller for inserting the printing roller, a first support seat, and a second support seat capable of longitudinal swinging. One end of the guide upper roller is mounted on the first support seat, and the second support seat provides longitudinal swinging support for the guide upper roller. The machine base also includes a height adjustment mechanism that drives the first and second support seats to move longitudinally. During loading and unloading, the first and second support seats rise, meaning the guide upper roller moves away from the first and second lower rollers, creating a larger gap to prevent friction during loading and unloading. Furthermore, the transversely arranged guide upper roller facilitates axial alignment with the printing roller, reducing the likelihood of collisions during loading and unloading and reducing the load.

Description

Technical Field

[0001] This utility model relates to the field of gravure roller forming technology, and in particular to a rounding machine for processing printing rollers. Background Technology

[0002] A rounding machine is a common machine that can round rolled plates. Its working principle is that the upper roller moves vertically up and down to clamp the steel plate, while the lower roller remains in the same position but can rotate. The upper roller of the rounding machine is symmetrically positioned in the center of the two lower rollers. Driven by a driving force, it makes a vertical lifting motion, which, through the final stage gear of the main reducer, drives the two lower rollers to mesh and rotate, providing torque for the rolled plate.

[0003] Existing rounding machines typically tilt one end of the upper roller to create an inclined position when loading and unloading the printing roller. After clamping the printing roller with a fixture, the printing roller can be loaded and unloaded. However, this structure has only one support point on the upper roller during loading and unloading, which can easily lead to overloading of the upper roller when loading larger or heavier printing rollers. Furthermore, it is not easy to align the upper roller with the printing roller axially, which can easily cause collisions. Utility Model Content

[0004] The purpose of this invention is to provide a rounding machine for processing printing rollers, addressing the shortcomings of existing technologies.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A rounding machine for processing printing rollers includes a machine base, on which a first lower roller and a second lower roller are arranged at intervals, the first lower roller and the second lower roller being rotatably supporting the printing roller; the machine base is provided with a guide upper roller for inserting the printing roller, the machine base is also provided with a first support seat and a second support seat that can swing longitudinally, one end of the guide upper roller is installed on the first support seat, the second support seat is rotatably supporting the guide upper roller, and the machine base is also provided with a height adjustment mechanism that drives the first support seat and the second support seat to move longitudinally.

[0007] Furthermore: The machine is equipped with an inner stand and an outer stand arranged at intervals. The inner stand and the outer stand are respectively equipped with bearing seats. The two ends of the first lower roller and the second lower roller are respectively installed between the inner stand and the outer stand through the bearing seats.

[0008] Furthermore: an active sprocket sleeved on the first lower roller and a driven sprocket sleeved on the second lower roller are provided outside the inner support. The active sprocket is connected to a power system, and the active sprocket and the driven sprocket are connected by a drive system.

[0009] Furthermore: the inner and outer supports are respectively formed with horizontally aligned, concave movable grooves. The movable groove of the inner support is equipped with an inner support column, and the movable groove of the outer support is equipped with an outer support column. The first support is installed on the top of the inner support column, and the second support is hinged to the top of the outer support column.

[0010] Furthermore: the first support base is formed with a movable mounting hole, the inner end of the guide roller is rotatably mounted in the movable mounting hole, the top of the first support base is also equipped with a horizontally arranged parallel pry bar, the machine base is provided with a longitudinally arranged longitudinal guide plate, the longitudinal guide plate is longitudinally formed with a longitudinal long groove for the longitudinal movement of the parallel pry bar.

[0011] Furthermore: A swing drive mechanism is provided on the outside of the machine base to drive the second support seat to swing longitudinally. The swing drive mechanism includes a telescopic drive component that is tilted and rotatably installed on the outside of the machine base. The drive end of the telescopic drive component is rotatably connected to the second support seat.

[0012] Furthermore, the height adjustment mechanism includes an outer lifting rod for installing the outer support column and an inner lifting rod for installing the inner support column. The outer lifting rod and the inner lifting rod are connected by a transmission, and the outer lifting rod and the inner lifting rod rise and fall synchronously.

[0013] Furthermore, the height adjustment mechanism also includes a transversely arranged drive shaft, with a drive worm gear installed at each end of the drive shaft. The outer lifting rod and the inner lifting rod are drive screws, and the outer lifting rod and the inner lifting rod are respectively fitted with drive worm wheels that are connected to the drive worm gear. A drive screw sleeve that is connected to the drive screw is coaxially installed inside the drive worm wheel.

[0014] Furthermore, the height adjustment mechanism also includes a transmission box for mounting the transmission worm gear, the transmission box having a longitudinally formed lead screw guide hole for guiding the lead screw through.

[0015] The beneficial effects of this utility model are as follows: The first and second lower rollers are arranged at intervals and can rotate to support the printing roller, forming a stable two-point support structure, which can effectively limit the lateral displacement of the printing roller and prevent the printing roller from shaking during processing; The setting of the guide roller provides a clear guiding path for the insertion of the printing roller, which can guide the printing roller to enter the processing station quickly and accurately, reducing the difficulty and time cost of manual alignment; During rounding, the printing roller is fitted in the guide roller, and the height adjustment mechanism can drive the guide roller 2 to press down, which, together with the rotating first and second lower rollers, provides a squeezing rolling support for the printing roller to achieve rounding.

[0016] The height adjustment mechanism can move the first support seat and the second support seat longitudinally. During loading and unloading, the first support seat and the second support seat are raised, that is, the guide roller moves away from the first and second lower rollers, with a large gap to prevent friction during loading and unloading. In addition, the transversely arranged guide roller is easy to axially align with the printing roller, so it is not easy to bump during loading and unloading, and the load is small, which is easy to protect the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a roundness straightening machine.

[0018] Figure 2 This is a schematic diagram of the straightening machine from another perspective.

[0019] Figure 3 This is a partially enlarged structural diagram of the roundness straightening machine.

[0020] Figure 4 This is a schematic diagram of the height adjustment mechanism.

[0021] The reference numerals in the figures include:

[0022] 1-Machine,

[0023] 11-First lower roller, 12-Second lower roller, 13-Inner support, 14-Outer support, 15-Bearing housing

[0024] 16-Drive sprocket, 17-Driven sprocket, 18-Power system

[0025] 2-Guide upper roller,

[0026] 21-First support seat, 22-Second support seat, 23-Modible groove, 24-Inner support column,

[0027] 25-External support column, 26-Modible mounting hole, 27-Parallel pry bar, 28-Longitudinal guide plate,

[0028] 29-Long longitudinal groove,

[0029] 3- Height adjustment mechanism

[0030] 31-Outer lifting rod, 32-Inner lifting rod, 33-Drive shaft, 34-Drive worm gear, 35-Drive worm wheel

[0031] 36-Transmission screw sleeve, 37-Transmission box, 38-Telescopic drive component. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the accompanying drawings.

[0033] like Figure 1-4As shown, a rounding machine for processing printing rollers includes a machine base 1. The machine base 1 is provided with a first lower roller 11 and a second lower roller 12 arranged at intervals. The first lower roller 11 and the second lower roller 12 are rotatably supported by the printing roller. The machine base 1 is provided with a guide upper roller 2 for the printing roller to be inserted. The machine base 1 is also provided with a first support seat 21 and a second support seat 22 that can swing longitudinally. One end of the guide upper roller 2 is installed on the first support seat 21. The second support seat 22 can swing longitudinally to movably support the guide upper roller 2. The machine base 1 is also provided with a height adjustment mechanism 3 that drives the first support seat 21 and the second support seat 22 to move longitudinally.

[0034] The first lower roller 11 and the second lower roller 12 are arranged at intervals and rotatably support the printing roller, forming a stable two-point support structure. This effectively limits the lateral displacement of the printing roller and prevents the printing roller from shaking during processing. The upper guide roller 2 provides a clear guiding path for the insertion of the printing roller, guiding it to enter the processing station quickly and accurately, reducing the difficulty and time cost of manual alignment. During rounding, the printing roller is fitted in the upper guide roller 2, and the height adjustment mechanism 3 can drive the upper guide roller 2 to press down. Together with the rotating first lower roller 11 and the second lower roller 12, the roller is squeezed and rolled to support it for rounding.

[0035] The height adjustment mechanism 3 allows for longitudinal movement of the first support base 21 and the second support base 22. During loading and unloading, the first support base 21 and the second support base 22 rise, meaning the upper guide roller 2 moves away from the first lower roller 11 and the second lower roller 12, creating a larger gap to prevent friction during loading and unloading. Furthermore, the laterally arranged upper guide roller 2 facilitates axial alignment with the printing roller, reducing the likelihood of collisions during loading and unloading, and reducing the load, thus protecting the equipment. In conjunction with external clamps, the printing roller is clamped and then moved laterally for rapid loading and unloading.

[0036] Specifically, the machine base 1 is equipped with an inner support 13 and an outer support 14 arranged at intervals. Bearing seats 15 are respectively installed on the inner support 13 and the outer support 14. The two ends of the first lower roller 11 and the second lower roller 12 are respectively installed between the inner support 13 and the outer support 14 via the bearing seats 15. The inner support 13 and the outer support 14 form a symmetrical rigid frame, fixing the two ends of the first lower roller 11 and the second lower roller 12 through the bearing seats 15, thus changing the support point of the lower rollers from single-point suspension to double-sided rigid constraint. A drive sprocket 16 is sleeved on the first lower roller 11 and a driven sprocket 17 is sleeved on the second lower roller 12 outside the inner support 13. The drive sprocket 16 is connected to a power system 18, and the drive sprocket 16 and the driven sprocket 17 are connected by a chain. The power system 18 only needs to drive the drive sprocket 16 to drive the two lower rollers to rotate synchronously, achieving rolling support for the printing rollers and performing rounding.

[0037] Furthermore, the inner support 13 and the outer support 14 are respectively formed with horizontally aligned, concave movable grooves 23. The inner support 13 is equipped with an inner support column 24 in its movable groove 23, and the outer support 14 is equipped with an outer support column 25 in its movable groove 23. The first support 21 is installed on the top of the inner support column 24, and the second support 22 is hinged to the top of the outer support column 25. The hinge structure rotates by means of a shaft hole, so that the second support 22 can swing longitudinally around the outer support column 25, which makes it easy to disassemble the outer end of the guide roller 2, and facilitates the quick removal or insertion of the printing roller from the guide roller 2, thereby improving the efficiency of loading and unloading.

[0038] Furthermore, a swing drive mechanism is provided on the outer side of the machine base 1 to drive the second support seat 22 to swing longitudinally. The swing drive mechanism includes a telescopic drive member 38 that is tilted and rotatably installed on the outer side of the machine base 1. The drive end of the telescopic drive member 38 is rotatably connected to the second support seat 22. When the printing roller needs to be loaded or unloaded, the second support seat 22 can swing outward around the top of the outer support column 25 under the drive of the telescopic drive member 38. At this time, the second support seat 22 is disengaged from the movable support of the guide roller 2, and the outer end of the guide roller 2 is exposed outward. At this time, the printing roller can be coaxially aligned with the guide roller 2 and inserted into the guide roller 2 for loading. Similarly, after the printing roller is rounded, it can be removed from the guide roller 2 to complete the unloading. The loading and unloading can be completed without manually disassembling the second support seat 22, thereby improving the loading and unloading efficiency of the printing roller.

[0039] Preferably, the telescopic drive component 38 is one of a servo electric cylinder, a telescopic pneumatic cylinder, or a hydraulic cylinder.

[0040] Specifically, the machine tool 1 is also equipped with a height adjustment mechanism 3 for adjusting the height of the guide roller 2. The height adjustment mechanism 3 includes an outer lifting rod 31 for mounting the outer support column 25 and an inner lifting rod 32 for mounting the inner support column 24. The outer lifting rod 31 and the inner lifting rod 32 are connected by a transmission, and the outer lifting rod 31 and the inner lifting rod 32 rise and fall synchronously. The outer lifting rod 31 and the inner lifting rod 32 respectively drive the outer support column 25 and the inner support column 24 to rise and fall longitudinally, directly changing the overall height of the guide roller 2. The equipment can handle the processing of rollers with different diameters, lengths and materials without replacing the core components, which greatly reduces the equipment investment cost for multi-variety production.

[0041] Furthermore, the height adjustment mechanism 3 also includes a transversely arranged drive shaft 33, which rotates under the drive of a drive motor. Drive worm gears 34 are respectively installed at both ends of the drive shaft 33. The outer lifting rod 31 and the inner lifting rod 32 are respectively drive screws. Drive worm wheels 35, which are connected to the drive worm gears 34, are respectively fitted onto the outer lifting rod 31 and the inner lifting rod 32. Drive threaded sleeves 36, which are connected to the drive screws, are coaxially installed inside the drive worm wheels 35. The drive worm gears 34 at both ends of the drive shaft 33 mesh with the drive worm wheels 35 on the outer lifting rod 31 and the inner lifting rod 32, forming a reduction transmission mechanism. The transmission screw sleeve 36, together with the outer lifting rod 31 and the inner lifting rod 32, which serve as the transmission lead screw, form a helical transmission pair, converting the rotational motion of the worm wheel into the linear lifting motion of the lifting rod. The tooth profile design of the worm and worm wheel has a self-locking function, which can convert the high-speed rotational motion of the drive motor into the low-speed, high-torque output of the worm wheel. This not only easily drives the transmission screw sleeve 36 to lift the lead screw, but also prevents the height from falling back due to load changes after adjustment, ensuring the long-term stability of the guide roller 2 position through its self-locking characteristic.

[0042] Furthermore, the height adjustment mechanism 3 also includes a transmission box 37 for mounting the transmission worm gear 35. The transmission box 37 is filled with lubricating oil, and the transmission worm 34, transmission worm gear 35, and transmission sleeve 36 are all located inside the transmission box 37. The lubricating oil provides lubrication for the above-mentioned transmission system, ensuring the stability of the transmission. The transmission box 37 has a longitudinally formed lead screw guide hole for the transmission lead screw to pass through. A flat bearing seat 15 is provided inside the transmission box 37 to mount the transmission worm gear 35, ensuring that the transmission worm gear 35 is always at this height. When the transmission worm gear 35 rotates, it drives the transmission sleeve 36 to rotate synchronously. The transmission sleeve 36 is in transmission cooperation with the transmission lead screw, and the transmission lead screw can move up and down, driving the outer lifting rod 31 and the inner lifting rod 32 to move up and down synchronously, realizing the synchronous height adjustment of the first support seat 21 and the second support seat 22.

[0043] Furthermore, both the first support base 21 and the second support base 22 are formed with movable mounting holes 26. The inner end of the guide roller 2 is rotatably mounted in the movable mounting hole 26. A horizontally arranged parallel pry bar 27 is also installed on the top of the first support base 21. The machine base 1 is provided with a longitudinally arranged longitudinal guide plate 28, which is longitudinally formed with a longitudinal groove 29 for the parallel pry bar 27 to move longitudinally. The parallel pry bar 27 cooperates with the longitudinal groove 29 of the longitudinal guide plate 28 to prevent the height adjustment of the first support base 21 from exceeding the range, ensuring that the first support base 21 moves within the range of the longitudinal groove 29 as a reference during lifting and lowering adjustment, thus ensuring the stability of the adjustment.

[0044] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.

[0045] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A roll straightener for processing a printing plate roll, comprising a machine table provided with a first lower roll and a second lower roll arranged at a distance, characterized in that: The first and second lower rollers are rotatably supported by the printing roller. The machine is equipped with a guide upper roller for the printing roller to be inserted. The machine is also equipped with a first support seat and a second support seat that can swing longitudinally. One end of the guide upper roller is installed on the first support seat. The second support seat can swing longitudinally to support the guide upper roller. The machine is also equipped with a height adjustment mechanism that drives the first and second support seats to move longitudinally.

2. A roll straightening machine for processing a printing plate cylinder according to claim 1, characterized in that: The machine base is provided with an inner stand and an outer stand arranged at intervals. The inner stand and the outer stand are respectively equipped with bearing seats. The two ends of the first lower roller and the second lower roller are respectively installed between the inner stand and the outer stand through the bearing seats.

3. A roll straightening machine for processing a printing plate cylinder according to claim 2, characterized in that: The inner support is provided with a drive sprocket sleeved on the first lower roller and a driven sprocket sleeved on the second lower roller. The drive sprocket is connected to a power system, and the drive sprocket and the driven sprocket are connected by a drive system.

4. A rounding machine for processing printing rollers according to claim 2, characterized in that: The inner and outer supports are respectively formed with horizontally aligned, concave movable grooves. The movable groove of the inner support is equipped with an inner support column, and the movable groove of the outer support is equipped with an outer support column. The first support is installed on the top of the inner support column, and the second support is hinged to the top of the outer support column.

5. A rounding machine for processing printing rollers according to claim 4, characterized in that: The first support base is formed with a movable mounting hole, and the inner end of the guide roller is rotatably installed in the movable mounting hole. A horizontally arranged parallel pry bar is also installed on the top of the first support base. The machine base is provided with a longitudinally arranged longitudinal guide plate, and the longitudinal guide plate is formed with a longitudinal long groove for the parallel pry bar to move longitudinally.

6. A rounding machine for processing printing rollers according to claim 1, characterized in that: The machine base is provided with a swing drive mechanism that drives the second support base to swing longitudinally. The swing drive mechanism includes a telescopic drive component that is tilted and rotatably installed on the outside of the machine base. The drive end of the telescopic drive component is rotatably connected to the second support base.

7. A rounding machine for processing printing rollers according to claim 4, characterized in that: The height adjustment mechanism includes an outer lifting rod for installing the outer support column and an inner lifting rod for installing the inner support column. The outer lifting rod and the inner lifting rod are connected by a transmission, and the outer lifting rod and the inner lifting rod rise and fall synchronously.

8. A rounding machine for processing printing rollers according to claim 7, characterized in that: The height adjustment mechanism also includes a transversely arranged drive shaft, with a drive worm gear installed at each end of the drive shaft. The outer lifting rod and the inner lifting rod are drive screws, and the outer lifting rod and the inner lifting rod are respectively fitted with drive worm wheels that are connected to the drive worm gear. A drive screw sleeve that is connected to the drive screw is coaxially installed inside the drive worm wheel.

9. A rounding machine for processing printing rollers according to claim 8, characterized in that: The height adjustment mechanism also includes a transmission box for mounting the transmission worm gear, and the transmission box has a longitudinally formed lead screw guide hole for guiding the lead screw through.

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