A brushroll replacement device

Abstract

The application provides a brush roller replacing device, which comprises a roller clamping mechanism, a roller replacing mechanism and a controller, the roller clamping mechanism comprises a fixed seat and a sliding seat for clamping at both ends of a working brush roller, the roller replacing mechanism comprises a base and a roller seat slidingly connected to the base, the roller seat is connected with a speed reduction transmission module, and one end of the roller seat facing the sliding seat is connected with a speed measurement module; through feedback interaction of the speed measurement module, the controller and the driving piece, the driving piece drives the roller seat to slide through the speed reduction transmission module, a sliding speed difference is generated between the roller seat and the sliding seat, the brush roller is once separated from the roller clamping mechanism, the brush roller is prevented from being stuck and the shaft head is prevented from being deformed when being separated, the service life of the brush roller is ensured, and the replacing efficiency of the brush roller and the efficiency of the steel plate grinding brush are improved.

Description

Technical Field

[0001] This invention relates to the field of metal surface treatment technology, and in particular to a brush roller replacement device. Background Technology

[0002] Steel plates, also known as strips, are rolled up and stored after production, commonly known as steel coils. Steel coils are then sent to corresponding product manufacturing plants to be made into corresponding parts according to different usage requirements. During the period between the strip entering the processing plant and being cut, the strip reacts with moisture and chemicals in the air, causing the surface material of the strip to rust. In order to remove the rust layer, the existing technology usually uses brush rollers installed in steel plate grinding equipment to physically grind the surface of the strip. This equipment requires the brush rollers to come into contact with the surface of the steel plate. After long-term use, the grinding effect of the brush rollers will also decrease. Therefore, the brush rollers need to be placed on a roller changing car for replacement with new rollers.

[0003] For example, in the patent for a roller changing vehicle with announcement number CN110842728, bearing seat one and bearing seat two are installed at the lower end of the working beam, and the working brush roller is installed between the two bearing seats. The working beam and the two bearing seats can be regarded as a roller clamping mechanism, where bearing seat one can be regarded as a sliding seat and bearing seat two can be regarded as a fixed seat. When changing rollers, the working beam descends, and the scale-breaking roller falls on the roller seat of the roller changing support device. At this time, the sliding seat moves outward along the bearing seat slide rail, so that one end of the scale-breaking roller is disengaged from the sliding seat. Then, the upper beam is driven to slide, so that the other end of the scale-breaking roller is disengaged from the fixed seat. Although this roller changing method can remove the old brush roller, it still has defects.

[0004] When changing rollers, the sliding seat moves first and disengages from one end of the brush roller. Then the working beam moves and the fixed seat disengages from the other end of the brush roller. This means that changing rollers requires two steps, resulting in low efficiency.

[0005] The brush roller has roller shafts at both ends, and a sliding seat and a fixed seat hold the corresponding roller shafts. Due to error, the brush roller cannot be kept perfectly horizontal after being placed on the roller changing car. Therefore, when the sliding seat comes off one end of the brush roller, the end of the brush roller that comes off will tilt downwards due to gravity. In this case, the working beam will then drive the fixed seat to move, and the roller shaft in the fixed seat will get stuck, reducing the service life of the brush roller and the fixed seat, and affecting the subsequent brushing process of the steel plate. Summary of the Invention

[0006] To address the aforementioned technical problems, the present invention aims to provide a brush roller replacement device. Through feedback interaction between the speed measurement module, controller, and drive component, the drive component, via the deceleration transmission module, drives the roller seat to slide, creating a sliding speed difference with the sliding seat. This causes the brush roller to disengage from the clamping roller mechanism in one go, preventing the brush roller from jamming and the shaft head from deforming during disengagement. This ensures the service life of the brush roller and improves the replacement efficiency of the brush roller and the efficiency of steel plate grinding.

[0007] The technical solution of this invention is implemented as follows: A brush roller changing device, comprising: The clamping mechanism can move up and down, and includes a fixed seat and a sliding seat for clamping the two ends of the working brush roller. The sliding seat can slide along the length of the working brush roller so that the working brush roller is installed in place or disengaged on the clamping mechanism. The roller changing mechanism is located below the clamping roller mechanism. The roller changing mechanism includes a base and a roller seat for supporting the working brush roller. The length direction of the roller seat is the same as that of the working brush roller. The roller seat is connected to a speed reduction transmission module, and a driving component is connected to the speed reduction transmission module. The driving component can drive the roller seat to slide on the base along its own length direction through the speed reduction transmission module. A speed measuring module is installed at the end of the base facing the sliding seat. The controller is electrically connected to the drive unit and the speed measurement module; When the clamping roller mechanism descends and places the working brush roller on the roller seat, the sliding seat slides away from the working brush roller at a first speed. The speed measuring module can acquire the first speed and feed it back to the controller. The controller can send a command to the drive component based on the acquired first speed, so that the drive component drives the roller seat to slide in the same direction as the sliding seat at a second speed less than the first speed through the deceleration transmission module until both ends of the working brush roller are completely disengaged from the clamping roller mechanism.

[0008] Preferably, the reduction transmission module includes a gear reducer, which has an input end and an output end. The driving component is a motor connected to the input end, and an output gear is connected to the output end. A linkage assembly is provided between the output gear and the roller seat. The linkage assembly includes a first screw and a second screw with opposite thread directions. The same end of the first screw and the second screw is connected to the end of the roller seat facing the sliding seat. A first gear and a second gear are respectively screwed on the first screw and the second screw. The first gear and the second gear mesh with the output gear simultaneously. The linkage assembly combines gear transmission and screw-nut engagement to drive the roller seat to slide. At the same time, the first screw and the second screw can provide sufficient linkage force for the roller seat. Their opposite thread direction design also allows the output end of the gear reducer to drive the two screws to slide simultaneously through only one output gear. The structure is simple and the design is ingenious.

[0009] Preferably, the opposite ends of the first screw and the second screw connected to the roller seat are both connected to a sliding shaft, and the base is provided with spaced sliding support seats, with the sliding shaft slidably connected to the sliding support seats; this forms a sliding support for the ends of the first screw and the second screw that are not connected to the roller seat, thus preventing the first screw and the second screw from bending due to insufficient support force when sliding.

[0010] Preferably, the outer end of the sliding shaft extends beyond the sliding support seat, and the outer end of the sliding shaft is connected to a limiting block to prevent the sliding shaft from separating from the sliding support seat; the limiting block can restrict the sliding shaft from sliding out of the sliding support seat, and prevent the ends of the first screw and the second screw from being suspended.

[0011] Preferably, the gear reducer is a planetary gear reducer; planetary gear reducers occupy a small volume and have high speed reduction and transmission efficiency.

[0012] Preferably, the speed measuring module is an infrared sensor electrically connected to the controller; the infrared sensor has high accuracy and low cost, and can accurately measure the sliding speed of the sliding seat by emitting an infrared laser beam and feed it back to the controller.

[0013] Preferably, the first gear, the second gear, and the output gear are all helical gears; the first gear and the second gear have the same gear rotation direction, and the output gear has the opposite gear rotation direction to the first gear or the second gear; compared with spur gears, helical gears have higher transmission efficiency and smoother transmission effect; at the same time, the axial counterforce generated by the helical gears can play a sliding limiting role on the first screw and the second screw.

[0014] The beneficial effects of the present invention, which adopts the above technical solution, are as follows: This invention provides a brush roller replacement device, which, compared with the prior art: The controller can interact with the speed measurement module and drive components to make the sliding speed of the roller seat less than that of the sliding seat, creating a "sliding seat block, slow roller seat" sliding effect. This allows both ends of the working brush roller to disengage from the clamping roller mechanism together, preventing jamming between the working brush roller and the clamping roller mechanism. This avoids deformation of the working brush roller shaft due to the tilting of the working brush roller, ensuring the service life of each component, improving the efficiency of roller changing and the subsequent grinding efficiency of the steel plate. Attached Figure Description

[0015] Figure 1 A schematic diagram of the brush roller replacement device; Figure 2 A schematic diagram of a clamping roller mechanism that places the working brush roller on a roller holder; Figure 3 A schematic diagram showing the sliding seat moving away from the end of the working brush roller; Figure 4A schematic diagram showing the sliding seat detached from the fixed seat at both ends of the working brush roller; Figure 5 The diagram shows the engagement of the first gear, the second gear, and the output gear, which are helical gears. The attached figures are labeled as follows: 1-clamping roller mechanism, 2-roller changing mechanism, 3-reduction transmission module, 4-working brush roller, 4a-new working brush roller, 11-fixed seat, 12-sliding seat, 21-base, 22-roller seat, 23-sliding support seat, 24-speed measuring module, 241-infrared laser beam, 25-vertical plate, 26-first guide rail, 27-second guide rail, 31-motor, 32-planetary gear reducer, 321-rotating shaft, 33-output gear, 34-first screw, 35-second screw, 34a-first gear, 35a-second gear, 36-limiting block, 37-sliding shaft. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] In the description of this invention, the term "at least one" means one or more, unless otherwise expressly defined. The terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0019] The specific implementation of this invention is as follows: like Figure 1-5 As shown, the present invention provides a brush roller replacement device, which is located inside a steel plate grinding and brushing equipment, comprising: The clamping mechanism 1 is movable up and down and includes a fixed seat 11 and a sliding seat 12 for clamping the two ends of the working brush roller 4. The sliding seat 12 can slide along the length of the working brush roller 4 so that the working brush roller 4 is installed in place or disengaged on the clamping mechanism 1. The specific structure and principle of the clamping mechanism 1 can be referred to the roller changing mechanism patent with announcement number CN110842728, which will not be repeated here. Roller changing mechanism 2 is located below roller clamping mechanism 1; roller changing mechanism 2 includes base 21 and roller seat 22 for supporting working brush roller 4, the length direction of roller seat 22 is the same as the length direction of working brush roller 4; roller seat 22 is connected to reduction transmission module 3, and a driving component is connected to reduction transmission module 3, the driving component can drive roller seat 22 to slide along its own length direction on base 21 through reduction transmission module 3; speed measuring module 24 is installed at the end of base 21 facing sliding seat 12. The controller (not shown) is electrically connected to the drive unit and the speed measurement module 24. When the clamping roller mechanism 1 descends and places the working brush roller 4 on the roller seat 22, the sliding seat 12 slides away from the working brush roller 4 at a first speed. The speed measuring module 24 can obtain the first speed and feed it back to the controller. The controller can issue a command to the driving component based on the obtained first speed, so that the driving component drives the roller seat 22 to slide in the same direction as the sliding seat 12 at a second speed less than the first speed through the deceleration transmission module 3, until both ends of the working brush roller 4 are completely disengaged from the clamping roller mechanism 1.

[0020] Furthermore, the reduction transmission module 3 includes a gear reducer, which has an input end and an output end. The driving component is a motor 31 connected to the input end, and a rotating shaft 321 is connected to the output end. An output gear 33 is connected to the end of the rotating shaft 321. After receiving the working command from the controller, the motor shaft connected to the input end of the gear reducer rotates, and the original rotational speed is reduced by the gear reducer, so that the rotational speed of the rotating shaft 321 and the output gear 33 is within a reasonable range. A linkage assembly is provided between the output gear 33 and the roller seat 22. The linkage assembly includes a first screw 34 and a second screw 35 with opposite thread directions. The same end of the second screw 35 is connected to the end of the roller seat 22 facing the sliding seat 12; the first screw 34 and the second screw 35 are respectively screwed with the first gear 34a and the second gear 35a, and the first gear 34a and the second gear 35a mesh with the output gear 33 at the same time; the linkage component combines gear transmission and screw and nut engagement to drive the roller seat 22 to slide. At the same time, the first screw 34 and the second screw 35 can provide sufficient linkage force for the roller seat 22. Their opposite screw direction design also allows the output end of the gear reducer to drive the two screws to slide simultaneously through only one output gear 33. The structure is simple and the design is ingenious.

[0021] Furthermore, the steel plate grinding and brushing equipment is equipped with a first guide rail 26. The base 21 can enter through the side opening of the steel plate grinding and brushing equipment and slide on the first guide rail 26. The upper end of the base 21 is equipped with a second guide rail 27, and the bottom end of the roller seat 22 is slidably connected to the second guide rail 27. The first guide rail 26 extends laterally into the steel plate grinding and brushing equipment, and a vertical plate 25 is provided at the end of its extension. When the base 21 slides to below the clamping roller mechanism 1, the vertical plate 25 can prevent the base 21 from continuing to slide, making the roller changing process more stable.

[0022] Furthermore, the two ends of the working brush roller 4 are connected to the fixed seat 11 and the sliding seat 12 through a toothed structure. Taking the sliding seat 12 as an example, the sliding seat 12 is equipped with an internal gear, and the end of the working brush roller 4 is equipped with an external gear. The internal gear has long teeth and short teeth. For its specific structure, please refer to the gear meshing structure patent with announcement number CN211103283, which will not be described in detail here. Specifically, when the sliding seat 12 slides at the first speed, the controller will issue a corresponding working command to the motor 31 according to the first speed measured by the speed measuring module 24, so that the rotation speed of the motor 31 is within a reasonable range. The so-called reasonable range means that after the motor 31 slides through the reduction transmission module and the roller seat 22 is linked, the sliding speed of the roller seat 22 cannot exceed the first speed. Speed; this allows the roller seat 22 to slide in the same direction as the sliding seat 12 and generate a speed difference. Therefore, when the sliding seat 12 slides and gradually disengages from one end of the working brush roller 4, the roller seat 22 also slides with the working brush roller 4 and gradually disengages from the fixed seat 13. The disengagement process is carried out simultaneously. Since the sliding speed of the sliding seat 12 is fast and the sliding speed of the roller seat 22 is slow, the external gear on the sliding seat 12 disengages from the internal gear at one end of the working brush roller 4 first. At this time, most of the external gear at the other end of the working brush roller 4 has disengaged from the internal gear on the fixed seat 13. Therefore, the roller shaft of the working brush roller 4 will not deform. At this time, it is only necessary to continue to control the movement of the sliding seat 12, and the roller seat 22 and the working brush roller 4 on the roller seat 22 will disengage from the fixed seat 13, thereby realizing the unloading of the roller.

[0023] Furthermore, when the first gear 34a and the second gear 35a rotate, the first screw 34 and the second screw 35 will move along their own axes and drive the roller seat 22 to slide. Therefore, the opposite ends of the first screw 34 and the second screw 35 connected to the roller seat 22 are both connected to a sliding shaft 37. The base 21 is provided with spaced sliding support seats 23, and the sliding shaft 37 is slidably connected to the sliding support seats 23. Sliding support is formed at the ends of the first screw 34 and the second screw 35 that are not connected to the roller seat 22, so as to avoid bending of the first screw 34 and the second screw 35 due to insufficient support force when sliding.

[0024] Furthermore, in order to prevent the sliding shaft 37 from sliding out of the sliding support seat 23, the outer end of the sliding shaft 37 extends beyond the sliding support seat 23, and the outer end of the sliding shaft 37 is connected to a limiting block 36 to prevent the sliding shaft 37 from separating from the sliding support seat 23; the limiting block 36 can restrict the sliding shaft 37 from sliding out of the sliding support seat 23, and prevent the ends of the first screw 34 and the second screw 35 from being suspended.

[0025] Furthermore, the gear reducer is a planetary gear reducer 32; compared with other reducers, the planetary gear reducer 32 occupies a small volume and has high speed reduction and transmission efficiency; it can save internal space of the brush roller changing device and make the layout of the brush roller changing device more reasonable.

[0026] Furthermore, the speed measuring module 24 is an infrared sensor electrically connected to the controller. The infrared sensor has high accuracy and low cost. It can accurately measure the sliding speed of the sliding seat 12 by emitting an infrared laser beam 241 and feed it back to the controller. Specifically, the infrared sensor emits an infrared laser beam 241, which illuminates the sliding seat 12. The receiver of the infrared sensor waits for and captures the infrared light reflected back from the surface of the sliding seat 12. By obtaining the time difference between the emission of the infrared laser beam 241 and its reflection, the first sliding speed of the sliding seat 12 can be calculated.

[0027] Furthermore, the first gear 34a, the second gear 35a, and the output gear 33 are all helical gears. The first gear 34a and the second gear 35a have the same gear helix direction, while the output gear 33 has the opposite gear helix direction to either the first gear 34a or the second gear 35a. The gear helix direction does not refer to the direction of gear rotation, but rather to the direction of the gear's helix. The helix direction is typically left-handed or right-handed, meaning the teeth deflect to the left or right. Compared to spur gears, the contact of helical gears occurs gradually on the tooth surface, rather than simultaneously across the entire tooth width like spur gears. This results in higher transmission efficiency and smoother transmission. Additionally, helical gears can also provide a certain degree of limiting. Specifically, the extension direction of the helical gear teeth is not the same as the gear's axis, but rather forms an angle with it. Therefore, during helical gear engagement, an axial counterforce is generated between the meshing teeth. This counterforce can then act as a sliding limit for the first screw 34 or the second screw 35 when they tend to move axially.

[0028] Furthermore, the roller changing steps of the brush roller changing device are as follows, where S1-S3 are roller unloading steps and S4-S6 are roller loading steps. S1: After the roller changing mechanism enters the brush grinding equipment, the controller sends a command to the drive component, causing the drive component to drive the roller seat 22 to slide to align with the roller clamping mechanism 1 through the speed reduction transmission module. S2: The clamping roller mechanism 1 descends from its initial position and places the working brush roller 4 on the roller seat 22. Then, the sliding seat 12 slides at a first speed in a direction away from the end of the working brush roller 4. The speed measuring module 24 obtains the first speed and feeds it back to the controller. The controller sends a command to the drive component, causing the drive component to drive the roller seat 22 to slide in the same direction as the sliding seat 12 at a second speed less than the first speed through the deceleration transmission module, until the sliding seat 12 and the fixed seat 11 are separated from both ends of the working brush roller 4. S3: The clamping roller mechanism 1 rises, and the roller changing mechanism carries the working brush roller 4 out of the grinding equipment.

[0029] S4: Place a new working brush roller 4a on the roller seat 22, then control the roller changing mechanism loaded with the new working brush roller 4a to enter the brush grinding equipment. Then the controller sends a command to the drive unit, causing the drive unit to drive the roller seat 22 and the new working brush roller 4a on the roller seat 22 to move between the sliding seat 12 and the fixed seat 11 through the speed reduction transmission module. S5; The speed measuring module 24 stops working, the clamping roller mechanism 1 descends, so that the sliding seat 12 and the fixed seat 11 are aligned with the two ends of the new working brush roller 4a. Then the sliding seat 12 continues to slide along the direction close to the end of the new working brush roller 4a until both ends of the new working brush roller 4a are engaged with the sliding seat 12 and the fixed seat 11. S6: Control the clamping mechanism 1 holding the new working brush roller 4a to reset upward to the initial position.

[0030] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A brush roller changing device, characterized in that, include: The clamping mechanism (1) can move up and down, including a fixed seat (11) and a sliding seat (12) for clamping the two ends of the working brush roller (4). The sliding seat (12) can slide along the length of the working brush roller (4) so ​​that the working brush roller (4) can be installed in place or disengaged on the clamping mechanism (1). The roller changing mechanism (2) is located below the clamping roller mechanism (1). The roller changing mechanism (2) includes a base (21) and a roller seat (22) for supporting the working brush roller (4). The length direction of the roller seat (22) is the same as the length direction of the working brush roller (4). The roller seat (22) is connected to a speed reduction transmission module (3). A driving component is connected to the speed reduction transmission module (3). The driving component can drive the roller seat (22) to slide on the base (21) along its own length direction through the speed reduction transmission module (3). A speed measuring module (24) is installed at the end of the base (21) facing the sliding seat (12). The speed reduction transmission module (3) includes a gear reducer. The gear reducer has a transmission function. The input and output ends are driven by a motor (31) connected to the input end and an output gear (33) connected to the output end. A linkage assembly is provided between the output gear (33) and the roller seat (22). The linkage assembly includes a first screw (34) and a second screw (35) with opposite screw directions. The same end of the first screw (34) and the second screw (35) is connected to the end of the roller seat (22) facing the sliding seat (12). A first gear (34a) and a second gear (35a) are screwed on the first screw (34) and the second screw (35) respectively. The first gear (34a) and the second gear (35a) mesh with the output gear (33) at the same time. The controller is electrically connected to the drive unit and the speed measurement module (24); the speed measurement module (24) is an infrared sensor electrically connected to the controller; When the clamping roller mechanism (1) descends and places the working brush roller (4) on the roller seat (22), the sliding seat (12) slides away from the working brush roller (4) at a first speed. The speed measuring module (24) can obtain the first speed and feed it back to the controller. The controller can issue a command to the drive component based on the obtained first speed, so that the drive component drives the roller seat (22) to slide in the same direction as the sliding seat (12) at a second speed less than the first speed through the deceleration transmission module (3) until both ends of the working brush roller (4) are completely disengaged from the clamping roller mechanism (1).

2. The brush roller replacement device according to claim 1, characterized in that: The first screw (34) and the second screw (35) are connected to the opposite ends of the roller seat (22) with sliding shafts (37). The base (21) is provided with spaced sliding support seats (23), and the sliding shafts (37) are slidably connected to the sliding support seats (23).

3. The brush roller changing device according to claim 2, characterized in that: sliding... The outer end of the shaft (37) extends beyond the sliding support seat (23), and the outer end of the sliding shaft (37) is connected to a limiting block (36) to prevent the sliding shaft (37) from separating from the sliding support seat (23).

4. The brush roller replacement device according to claim 1, characterized in that: The gear reducer is a planetary gear reducer (32).

5. The brush roller replacement device according to claim 1, characterized in that: The first gear (34a), the second gear (35a), and the output gear (33) are all helical gears; the first gear (34a) and the second gear (35a) have the same gear rotation direction, and the output gear (33) has the opposite gear rotation direction to the first gear (34a) or the second gear (35a).

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