Surface treatment device for aluminum plate casting roller

Abstract

The utility model relates to the technical field of aluminum plate machining equipment, and discloses an aluminum plate casting roller surface treatment device which comprises a base, a driving motor, a sliding seat assembly, an upper pressing roller assembly and a lower pressing roller assembly. The upper and lower press roller assembly comprises a rocker arm support and a pressing auxiliary roller, a connecting rod transmission mechanism is arranged between the rocker arm support and the sliding block, during working, the casting roller presses the pressing auxiliary roller to enable the rocker arm support to swing, the sliding block and the steel wire roller are driven by a connecting rod mechanism to automatically extend outwards for grinding, and after the casting roller leaves, the mechanism is automatically reset. According to the utility model, the automatic feeding of workpieces is realized by utilizing a pure mechanical structure, the problems that an electronic sensor is easy to lose efficacy in a high-temperature dust environment and the manual adjustment efficiency is low are solved, and the reliability and the automation level of equipment under severe working conditions are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum plate processing equipment, and in particular to a surface treatment device for aluminum plate casting rolls. Background Technology

[0002] In the aluminum sheet casting and rolling process, the surface quality of the casting rolls directly determines the quality of the finished aluminum sheet. During continuous production, fine particles, oxide scale, and oil stains easily adhere to the surface of the casting rolls after the molten aluminum has solidified. If these deposits are not removed in time, they will form defects such as pits and scratches on the aluminum sheet surface. Therefore, surface treatment devices are usually equipped on the casting and rolling production line, which use rotating wire rollers or grinding wheels to perform online grinding and cleaning on the surface of the casting rolls.

[0003] Traditional surface treatment equipment primarily employs two methods to control the feed of the grinding components. One method relies on manual rotation of a lead screw to adjust the position of the grinding roller. This requires operators to frequently approach high-temperature, hazardous areas for adjustments, resulting in high labor intensity, significant safety risks, and difficulty in maintaining constant grinding pressure, potentially leading to incomplete cleaning or excessive wear of the roller surface. The other method, aimed at increasing automation, uses a motor drive combined with photoelectric or position sensors to control the extension and retraction of the grinding roller, intending to achieve automatic contact.

[0004] However, the actual working conditions in the casting and rolling workshop are extremely harsh, filled with high-temperature heat radiation, floating metal dust, and volatile oil fumes. In such an environment, precision electronic sensors are extremely prone to malfunction or misjudgment due to dust accumulation, overheating, or signal interference. Once a sensor fails, the control system cannot accurately determine the position of the casting rolls, which may cause the grinding rolls to fail to extend in time, resulting in the scrapping of aluminum sheets in batches; or the casting rolls may fail to retract in time when they leave, even causing mechanical collisions, seriously affecting the continuous and stable operation of the production line. Therefore, developing a purely mechanical surface treatment device that does not rely on electronic components, can adapt to harsh environments, and has automatic sensing and feeding functions has become a technical challenge that the industry urgently needs to solve.

[0005] Therefore, this utility model proposes a surface treatment device for aluminum plate casting rolls to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems in the existing technology, the surface treatment device for aluminum plate casting rolls relies on manual adjustment, which is inefficient and has high safety risks. On the other hand, the electronic sensor-controlled feeding is unreliable in high temperature and dust environments due to component failure, and is prone to mechanical collisions or incomplete cleaning. The present invention aims to provide an aluminum plate casting roll surface treatment device with an improved structure that can achieve automatic sensing feeding using a purely mechanical structure and is adaptable to harsh working conditions.

[0007] This utility model provides a surface treatment device for aluminum plate casting rolls, including a base, a side mounting plate disposed on the outside of the base, a drive motor fixed to one side of the base, a sliding seat assembly disposed on the base, a transmission belt assembly connecting the drive motor and the sliding seat assembly, and upper and lower pressure roller assemblies disposed on the base.

[0008] The sliding seat assembly includes a pair of bearing plates vertically fixed to the outside of the base. A sliding block is slidably installed within the space enclosed by the bearing plates. A central spindle is rotatably installed within the sliding block. A wire roller is fixed to the front end of the central spindle, and a driven pulley is fixed to the rear end. The upper and lower pressure roller assembly includes a rocker arm bracket rotatably installed on the base. A pressing auxiliary roller is rotatably installed at the front end of the rocker arm bracket. A linkage transmission mechanism is provided between the rocker arm bracket and the sliding block. When the rocker arm bracket is subjected to force and swings, the linkage transmission mechanism pushes the sliding block to slide outward along the bearing plate.

[0009] Preferably, the transmission belt assembly further includes tension pulleys disposed on the upper and lower sides of the belt. The tension pulleys are connected to tension springs via guide rods. One end of the tension spring abuts against the guide rod, and the other end is fixed to the internal structure of the sliding seat assembly or the base, so that the tension pulleys keep pressing against the belt, thereby constructing a bidirectional elastic tensioning structure to ensure that the belt always remains taut when the center distance changes.

[0010] Preferably, the sliding block assembly further includes an adjustment knob and a clamping spring. The adjustment knob is threaded through the side mounting plate and the side wall of the base. The clamping spring is located between the end of the adjustment knob and the outer wall of the sliding block. By rotating the adjustment knob to compress the clamping spring, the function of eliminating the mating gap and providing elastic buffer protection is realized.

[0011] Preferably, the bearing plate has an arc-shaped groove and a guide groove on its inner side. The guide groove extends in a straight line, and the arc-shaped groove is a preset curved trajectory. Together, they constitute the constraint boundary for motion conversion.

[0012] Preferably, the linkage transmission mechanism includes a clamping guide rod fixed on the rocker arm bracket, and an upper ejector rod and a lower ejector rod slidably installed in the guide groove; the clamping guide rod is slidably disposed in the arc-shaped groove; the ends of the upper ejector rod and the lower ejector rod abut against the inner side of the sliding block, and the upper ejector rod and the lower ejector rod are driven to extend linearly along the guide groove by the displacement and compression generated by the movement of the clamping guide rod along the arc-shaped groove.

[0013] Preferably, an upper connecting main shaft sleeve is fixed on the upper ejector rod, and a lower connecting main shaft sleeve is fixed on the lower ejector rod. When the clamping guide rod moves within the arc-shaped groove, it directly squeezes the upper connecting main shaft sleeve and the lower connecting main shaft sleeve, thereby smoothly transmitting thrust.

[0014] Preferably, the upper and lower pressure roller assembly further includes a base, a return spring, and a fixing head. The base is fixed to the rear side of the rocker arm bracket, the return spring is connected between the base and the side wall of the base, and the fixing head is fixed to the base. The tension of the return spring is used to realize the automatic return of the mechanism after the loss of external force.

[0015] Preferably, the side mounting plate is fixed to the outside of the base to support the adjustment knob, and the pair of bearing plates are arranged vertically and parallel to provide a stable linear guide reference for the sliding block.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model, by setting up an upper and lower pressure roller assembly including a rocker arm support, a pressing auxiliary roller, and a linkage transmission mechanism, uses the contact pressure of the casting roller on the pressing auxiliary roller to drive the rocker arm to swing, and converts the swing into linear thrust through the linkage mechanism, which automatically pushes the sliding seat assembly and the wire roller to extend and work. This solves the problems in the prior art where electronic sensors are prone to failure in high temperature and dust environments, resulting in unreliable feed control, as well as the low efficiency and high risk of manual operation. It achieves the effect of automatic feeding and grinding when encountering a workpiece and automatic resetting when leaving without power control, which greatly improves the stability and reliability of the device under harsh working conditions.

[0018] 2. This utility model solves the problem of belt slippage and unstable power transmission caused by changes in center distance during the forward and backward movement of the sliding seat assembly by setting a double-sided tensioning wheel and tensioning spring in the transmission belt assembly. It utilizes the continuous elastic force of the spring to push the tensioning wheel to always press against the belt surface. This achieves the technical effect of maintaining constant tension and ensuring efficient transmission of grinding power throughout the entire process of wire roller feeding or retraction.

[0019] 3. This utility model, by setting an adjustment knob in the sliding seat assembly in conjunction with a tightening spring for a fine-tuning buffer mechanism, utilizes the elastic abutment of the spring to eliminate the fit gap between the sliding block and the bearing plate, thus solving the problem of shaking caused by mechanical clearance and potential impact damage to the equipment caused by rigid contact during device operation. It achieves the effect of conveniently adjusting the initial grinding position, providing overload buffer protection, improving the stability of equipment operation and service life. Attached Figure Description

[0020] Figure 1This is a three-dimensional schematic diagram of a surface treatment device for aluminum plate casting rolls proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the rocker arm support of the aluminum plate casting roll surface treatment device proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the reset spring of the aluminum plate casting roll surface treatment device proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the guide groove of the aluminum plate casting roll surface treatment device proposed in this utility model;

[0024] Figure 5 This is a schematic diagram of the adjustment knob of the aluminum plate casting roll surface treatment device proposed in this utility model;

[0025] Figure 6 This is a schematic diagram of the bearing plate structure of the aluminum plate casting roll surface treatment device proposed in this utility model;

[0026] Figure 7 This is a schematic diagram of the upper ejector rod of an aluminum plate casting roll surface treatment device proposed in this utility model.

[0027] Legend:

[0028] 1. Base; 2. Drive motor; 3. Transmission belt assembly; 301. Drive pulley; 302. Belt; 303. Driven pulley; 304. Tensioner; 305. Guide rod; 306. Tension spring; 4. Side mounting plate; 5. Arc groove; 6. Guide slide groove; 7. Sliding seat assembly; 701. Adjustment knob; 702. Bearing plate; 703. Top spring; 704. Sliding block; 705. Central spindle; 706. Wire roller; 8. Upper and lower pressure roller assemblies; 801. Rocker arm bracket; 802. Pressing auxiliary roller; 803. Base; 804. Return spring; 805. Fixed head; 806. Pressing guide rod; 807. Upper ejector rod; 808. Lower ejector rod; 809. Upper connecting spindle sleeve; 8010. Lower connecting spindle sleeve. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] Example:

[0031] Please refer to Figures 1 to 7 This utility model provides a surface treatment device for aluminum plate casting rolls, which aims to solve the structural defects of existing aluminum plate casting roll surface treatment equipment, which rely on manual adjustment, resulting in low efficiency, and electronic sensors are prone to failure in high temperature and dust environments, leading to inaccurate feed control.

[0032] like Figure 1 and Figure 2 As shown, the aluminum plate casting roll surface treatment device mainly consists of a base 1, a drive motor 2, a transmission belt assembly 3, a sliding seat assembly 7, and upper and lower pressure roller assemblies 8. The base 1 serves as the installation foundation for the entire device and has an L-shaped structure to provide a stable support platform. The side mounting plate 4 is fixedly installed on the outer side of the base 1 to assist in supporting the adjustment components and restricting the trajectory of the internal moving components. The drive motor 2 is fixedly installed on one side of the base 1 and serves as the power output source for the entire device, used to drive the grinding components to rotate at high speed.

[0033] The sliding seat assembly 7 is mounted on the base 1 and includes a pair of bearing plates 702 vertically fixed to the outside of the base 1. The two bearing plates 702 are arranged in parallel and spaced apart, forming a rectangular internal guide space. The sliding block 704 is embedded in the guide space and slides against the inner sidewall of the bearing plate 702, so that the sliding block 704 can only move in a straight line in a direction perpendicular to the side of the base 1. The central spindle 705 is rotatably installed in the central hole of the sliding block 704 through the bearing. The front end of the central spindle 705 extends out of the sliding block 704 and is fixedly mounted with a wire roller 706. The rear end extends into the device and is fixedly mounted with a driven pulley 303. The wire roller 706, as a physical grinding tool that directly contacts the surface of the casting roll, can rotate at high speed with the central spindle 705 and feed back and forth with the sliding block 704 as a whole.

[0034] The transmission belt assembly 3 establishes a flexible power transmission link. The driving pulley 301 is fixedly mounted on the output shaft of the drive motor 2. The belt 302 is wound between the driving pulley 301 and the driven pulley 303, and the driving pulley 301 and the driven pulley 303 are connected by the belt 302. This belt is used to transmit the rotational torque output by the drive motor 2 to the central main shaft 705, thereby driving the wire roller 706 to rotate. The upper and lower pressure roller assembly 8, as the core mechanism that uses the contact force of the workpiece to trigger mechanical action, includes rotation... The rocker arm bracket 801 is installed on the side of the base 1 or the bearing plate 702. A large-diameter pressing auxiliary roller 802 is rotatably installed at the front end of the rocker arm bracket 801. A precision linkage transmission mechanism is set between the rocker arm bracket 801 and the sliding block 704. When the casting roller approaches and squeezes the pressing auxiliary roller 802, the rocker arm bracket 801 is subjected to force and swings. Through the internal linkage transmission mechanism, the sliding block 704 is pushed to slide outward along the bearing plate 702, so that the wire roller 706 can automatically extend to perform surface treatment operations.

[0035] To address the potential belt slippage and transmission failure due to center distance variations in the aforementioned aluminum plate casting roll surface treatment device, the device further includes a tensioning wheel 304, a guide rod 305, and a tensioning spring 306. These components, together with the aforementioned transmission belt assembly 3 and base 1, form a specific elastic tensioning fit structure, thereby constructing an adaptive flexible transmission compensation mechanism. Please refer to [the relevant documentation / reference]. Figure 1 and Figure 3 The core structure will now be described in detail.

[0036] Tensioner pulleys 304 are respectively disposed on the upper and lower outer surfaces of the belt 302. One end of the guide rod 305 is rotatably connected to the tensioner pulley 304, and the other end of the guide rod 305 is slidably inserted into the guide hole provided inside the base 1 or bearing plate 702. The tension spring 306 is sleeved on the outer periphery of the guide rod 305. One end of the tension spring 306 abuts against the end of the guide rod 305 near the tensioner pulley 304, and the other end abuts against the internal fixing structure of the base 1 or bearing plate 702. In the initial assembly state... The tension spring 306 is in a compressed and stored state. Its continuously released elastic force pushes the guide rod 305 to move inward, thereby forcing the tension wheel 304 to always press tightly against the outer surface of the belt 302. This double-sided elastic pressing structure can not only provide a constant preload to the belt 302 to prevent slippage, but also effectively absorb the belt slack generated when the central spindle 705 moves back and forth with the sliding block 704, ensuring that the transmission belt assembly 3 always maintains a highly efficient and stable power transmission state throughout the grinding feed process.

[0037] To achieve adjustment of the initial position of the sliding block 704 and eliminate mechanical clearance, the device is also designed with a precision fine-tuning and buffering mechanism. Please refer to [reference needed]. Figure 2 and Figure 5 The outer surface of the adjusting knob 701 is threaded. The thread of the adjusting knob 701 is screwed through the side mounting plate 4 and through the side wall of the base 1. The clamping spring 703 is located between the end of the adjusting knob 701 that extends into the base 1 and the outer wall of the sliding block 704. One end of the clamping spring 703 is fixedly connected to or abuts against the end of the adjusting knob 701, and the other end directly abuts against the outer wall of the sliding block 704. By rotating the adjusting knob 701, its extension length can be changed, thereby compressing or releasing the clamping spring 703. This elastic clamping method can provide basic positioning support for the sliding block 704, eliminate the wobbling gap between it and the bearing plate 702, and play a flexible buffering role during the grinding process to prevent damage to the mechanism due to rigid collision.

[0038] For the specific guiding structure inside bearing plate 702, please refer to... Figure 4 and Figure 6 The inner wall of the bearing plate 702 is provided with slots with specific trajectories, including arc-shaped slots 5 and guide grooves 6. The guide grooves 6 extend in a horizontal straight line direction to restrict the internal ejector rod from making purely linear movements. The arc-shaped slots 5 present a preset curved trajectory to guide the movement path of the rotating parts. These two slots cooperate with each other in space to form the key constraint boundary for converting the rocker arm swing into linear thrust.

[0039] Based on the above embodiments, the present invention may further include the following preferred technical solutions:

[0040] As a preferred embodiment, in order to accurately convert the swing of the rocker arm bracket 801 into linear thrust, please refer to the following: Figure 4 , Figure 6 and Figure 7 A clamping guide rod 806 is fixedly connected to the side of the rocker arm bracket 801. The clamping guide rod 806 is slidably fitted into the arc-shaped groove 5 opened on the inner side of the bearing plate 702. An upper ejector rod 807 and a lower ejector rod 808 are slidably installed in the guide groove 6 of the bearing plate 702. The upper ejector rod 807 is limited and installed in the guide groove 6 by the upper connecting main shaft sleeve 809, and the lower ejector rod 808 is limited and installed in the guide groove 6 by the lower connecting main shaft sleeve 8010. In terms of spatial layout, the clamping guide rod 806 is fixedly connected to the side of the rocker arm bracket 801. The movement trajectory of rod 806 is configured such that when rocker arm bracket 801 is subjected to force and swings, pressing guide rod 806 slides along arc groove 5 and squeezes upper connecting main shaft sleeve 809 and lower connecting main shaft sleeve 8010, thereby driving upper ejector rod 807 and lower ejector rod 808 to extend outward in a straight line synchronously in guide slide groove 6. The outer ends of upper ejector rod 807 and lower ejector rod 808 directly abut against the inner side wall of sliding block 704, thereby transmitting this linear thrust to sliding block 704.

[0041] As another preferred embodiment, to ensure the automatic reset function of the device in the non-operating state, the upper and lower pressure roller assemblies 8 are also equipped with a dedicated reset mechanism, please refer to... Figure 3 The base 803 is fixedly installed on the rear side of the rocker arm bracket 801. One end of the return spring 804 is connected to the base 803, and the other end is connected to the side wall fixed on the base 1. When the pressing auxiliary roller 802 loses external pressure, the return spring 804 uses its own elastic tension to pull the base 803, causing the rocker arm bracket 801 to rotate in the opposite direction around its axis, and then drives the sliding block 704 back to the initial position through the linkage mechanism.

[0042] As a further preferred embodiment, in order to accommodate the slight vibration that may exist on the surface of the casting roll and to protect the equipment, the design of the adjusting knob 701 in conjunction with the clamping spring 703 not only eliminates the gap, but also plays the role of overload protection. When the grinding resistance is too large or the impact force on the clamping auxiliary roller 802 increases instantaneously, the clamping spring 703 can be further compressed, allowing the sliding block 704 to produce a slight retraction displacement, thereby avoiding mechanical damage caused by rigid impact.

[0043] In addition, to ensure the stability and durability of the wire roller 706 during operation, a high-precision rolling bearing is used to support the central spindle 705 and the sliding block 704, and the wire roller 706 is fixed to the front end of the central spindle 705 by a detachable flange or nut structure, which facilitates quick replacement after the wire wears out.

[0044] The working principle of this aluminum plate casting roll surface treatment device is as follows:

[0045] In the initial state, the tension spring 306 releases the preload and pushes the guide rod 305 to move inward, so that the tension wheel 304 continuously presses against the upper and lower surfaces of the belt 302, achieving constant tension of the transmission belt assembly 3 during operation and preventing slippage. The adjustment knob 701 is turned in through the side mounting plate 4 and through the side wall of the base 1, so that the top spring 703 is compressed, and its end tightly abuts against the outer wall of the sliding block 704, eliminating the fit gap of the sliding seat assembly 7 and providing basic stability.

[0046] When the work begins, the drive motor 2 is powered on and outputs rotational power. The active pulley 301 drives the driven pulley 303, which is installed at the end of the central spindle 705, to rotate at high speed through the belt 302, so that the wire roller 706 enters the high-speed self-rotation state ready to work. At this time, the wire roller 706 is still in the retracted position and has not contacted the workpiece.

[0047] When the casting roll to be processed approaches the device, the surface of the casting roll first abuts against and forcefully presses against the pressing auxiliary roll 802, causing the rocker arm bracket 801 to deflect under force. The deflection of the rocker arm bracket 801 drives the pressing guide rod 806 to slide along the arc groove 5 opened on the inner side of the bearing plate 702. The displacement of the pressing guide rod 806 along the arc generates extrusion force, causing the upper connecting main shaft sleeve 809 and the lower connecting main shaft sleeve 8010 to move under force, thereby driving the upper ejector rod 807 and the lower ejector rod 808 to extend outward in a straight line in the guide groove 6, converting the rotational swing of the rocker arm into a linear thrust.

[0048] The outward pushing action of the upper push rod 807 and the lower push rod 808 directly pushes the sliding block 704 to overcome the friction and resistance of the clamping spring 703 and slide out along the bearing plate 702. This causes the rotating wire roller 706 to extend from the inside and closely adhere to the surface of the casting roll for physical grinding. When the casting roll leaves the working area, the clamping auxiliary roller 802 loses its resistance. The reset spring 804 uses its own elastic potential energy to pull the fixed head 805 and the base 803 located behind the rocker arm bracket 801, causing the rocker arm bracket 801 to rotate in the opposite direction and drive the internal connecting rod to retract, driving the entire mechanism to automatically and smoothly retract to the initial position, completing the cycle reset.

[0049] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A surface treatment device for aluminum plate casting rolls, characterized in that, include: A base (1) is provided with a side mounting plate (4) fixedly installed on the outer side of the base (1), and a drive motor (2) is fixedly installed on one side of the base (1). A sliding seat assembly (7) is disposed on the base (1) and includes a pair of bearing plates (702) vertically fixed on the outside of the base (1). A sliding block (704) is slidably installed in the space enclosed by the bearing plates (702). A central spindle (705) is rotatably installed in the sliding block (704). A wire roller (706) is fixed at the front end of the central spindle (705), and a driven pulley (303) is fixed at the rear end. The transmission belt assembly (3) includes a drive pulley (301) fixed on the output shaft of the drive motor (2), and the drive pulley (301) and the driven pulley (303) are connected by a belt (302). The upper and lower pressure roller assembly (8) includes a rocker arm bracket (801) rotatably mounted on the base (1), and a pressure auxiliary roller (802) is rotatably mounted on the front end of the rocker arm bracket (801). A linkage transmission mechanism is provided between the rocker arm bracket (801) and the sliding block (704). When the rocker arm bracket (801) is subjected to force and swings, the linkage transmission mechanism pushes the sliding block (704) to slide outward along the bearing plate (702).

2. The surface treatment device for aluminum plate casting rolls according to claim 1, characterized in that, The transmission belt assembly (3) also includes tension pulleys (304) disposed on the upper and lower sides of the belt (302). The tension pulleys (304) are connected to a tension spring (306) via a guide rod (305). One end of the tension spring (306) abuts against the guide rod (305), and the other end is fixed to the internal structure of the sliding seat assembly (7) or the base (1), so that the tension pulley (304) keeps pressing against the belt (302).

3. The surface treatment device for aluminum plate casting rolls according to claim 1, characterized in that, The sliding block assembly (7) further includes an adjustment knob (701) and a clamping spring (703). The adjustment knob (701) is threaded through the side wall of the side mounting plate (4) and the base (1). The clamping spring (703) is located between the end of the adjustment knob (701) and the outer wall of the sliding block (704).

4. The surface treatment device for aluminum plate casting rolls according to claim 1, characterized in that, The bearing plate (702) has an arc-shaped groove (5) and a guide groove (6) on its inner side, and the guide groove (6) extends in a straight line direction.

5. The surface treatment device for aluminum plate casting rolls according to claim 4, characterized in that, The linkage transmission mechanism includes a clamping guide rod (806) fixed on the rocker arm bracket (801), and an upper ejector rod (807) and a lower ejector rod (808) slidably installed in the guide groove (6); the clamping guide rod (806) is slidably disposed in the arc groove (5); the ends of the upper ejector rod (807) and the lower ejector rod (808) abut against the inner side of the sliding block (704).

6. The surface treatment device for aluminum plate casting rolls according to claim 5, characterized in that, An upper connecting main sleeve (809) is fixed on the upper ejector rod (807), and a lower connecting main sleeve (8010) is fixed on the lower ejector rod (808). When the clamping guide rod (806) moves within the arc groove (5), it squeezes the upper connecting main sleeve (809) and the lower connecting main sleeve (8010), driving the upper ejector rod (807) and the lower ejector rod (808) to extend outward along the guide groove (6).

7. The surface treatment device for aluminum plate casting rolls according to claim 1, characterized in that, The upper and lower pressure roller assembly (8) also includes a base (803), a reset spring (804) and a fixing head (805). The base (803) is fixed to the rear side of the rocker arm bracket (801), the reset spring (804) is connected between the base (803) and the side wall of the base (1), and the fixing head (805) is fixed to the base (1).

8. The surface treatment device for aluminum plate casting rolls according to claim 3, characterized in that, The side mounting plate (4) is fixed to the outside of the base (1) to support the adjustment knob (701), and the pair of bearing plates (702) are arranged vertically and parallel.

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