An automatic bottle washer and a bottle washing method

Abstract

The present invention relates to the field of bottle cleaning equipment, and specifically discloses an automatic bottle washing machine and a bottle washing method, which include a conveying mechanism, a cleaning turntable and a cleaning tank. The conveying mechanism is arranged on one side of the cleaning turntable for feeding bottles into the cleaning turntable and taking them out from the cleaning turntable. The cleaning turntable is arranged in the cleaning tank, and a limiting cage is circumferentially arranged on the edge. The limiting cage is connected to the cleaning turntable through a vibration generator, and the vibration generator is used to generate vibrations with a preset amplitude for the bottles when the limiting cage is immersed in the cleaning liquid in the cleaning tank. By adopting the present invention, the automatic cleaning work of bottles can be completed automatically, and the cleaning effect can be improved.

Description

Technical Field

[0001] The present invention relates to the field of bottle cleaning equipment, and particularly to an automatic bottle washing machine and a bottle washing method. Background Art

[0002] In the fields of food processing, pharmaceutical industry, and chemical production, the bottle washing machine, as a key post-processing equipment, its performance directly affects product quality and production efficiency. Traditional bottle washing machines usually adopt a three-module structure design: including a water tank system for containing cleaning liquid, a mechanical transmission mechanism responsible for material transportation, and a functional unit for implementing the cleaning action. Its basic working principle is: the bottle or can to be processed is directionally transferred to the cleaning station through the conveying mechanism, and the bottle body is driven to move relative in the cleaning liquid tank by the cleaning mechanism, and the surface stains are removed by the infiltration and scouring action of the liquid.

[0003] The existing technical system mainly has two major technical paths: one is a passive cleaning solution, which relies on the relative movement between the bottle body and the cleaning liquid to generate the cleaning effect. This solution makes the bottle body travel in the liquid tank, and the stains are stripped by the solubility of the cleaning liquid itself and the fluid dynamics. However, practice shows that this method has poor cleaning effects on high-viscosity residues (such as sugar crystallization, lipid precipitation) and stubborn stains with strong chemical binding forces, and often requires an extended cleaning time or an increased cleaning temperature.

[0004] The second is an active impact cleaning solution, which generates a directional water flow to spray and clean the bottle body by adding a high-pressure water pump and a pipe network system. Although this technology can improve the cleaning efficiency, the introduced pressurization device increases the energy consumption of the equipment, and the complex water circuit system will lead to an increase in maintenance costs. More critically, the droplet splashing phenomenon caused by the high-pressure water flow impact will pollute the surrounding environment of the equipment. Therefore, it is urgent to develop a new bottle washing technology solution with high cleaning performance, low energy consumption characteristics, and environmental friendliness. Summary of the Invention

[0005] In order to solve the defects of the existing technology, the present invention provides an automatic bottle washing machine, which can automatically complete the automatic cleaning work of bottles and improve the cleaning effect.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides an automatic bottle washing machine, including a conveying mechanism, a cleaning turntable, and a cleaning tank. The conveying mechanism is arranged on one side of the cleaning turntable and is used to send bottles into the cleaning turntable and take them out from the cleaning turntable. The cleaning turntable is arranged in the cleaning tank, and a limiting cage is circumferentially arranged on the edge. The limiting cage is connected to the cleaning turntable through a vibration generator, and the vibration generator is used to generate vibrations with a preset amplitude for the bottles when the limiting cage is immersed in the cleaning liquid in the cleaning tank.

[0007] As an improvement of the above solution, the limiting cage is connected to the vibration generator through an elastic rod.

[0008] As an improvement of the above solution, it further includes an amplitude limiter sleeved on the elastic rod. The amplitude limiter has an amplitude limiting hole that can change in size and shape. The vibration direction of the limiting cage is controlled by the shape of the amplitude limiting hole, and the vibration amplitude is controlled by the size of the amplitude limiting hole.

[0009] As an improvement of the above solution, the amplitude limiter is arranged on a lifting mechanism, and the lifting mechanism is used to drive the amplitude limiter to move along the elastic rod.

[0010] As an improvement of the above solution, the lifting mechanism includes a back plate, a slide rail, a slide seat, a lead screw, and a lifting motor; the back plate extends radially from the surface of the vibration generator along the cleaning turntable, the slide rail is arranged on the back plate, and the slide seat is arranged on the slide rail; the lead screw is threadedly connected to the slide seat and can drive the slide seat to slide along the slide rail by its own rotation; the lifting motor is fixedly arranged on the vibration generator and is connected to the lead screw; the amplitude limiter is arranged on the slide seat.

[0011] As an improvement of the above solution, the amplitude limiter includes a main limiting member and a snap disc arranged on the main limiting member. The main limiting member is provided with a first elliptical hole, and the snap disc is provided with a second elliptical hole; the snap disc can rotate relative to the main limiting member so that the major axis of the second elliptical hole can overlap or form a predetermined angle with the major axis of the first elliptical hole.

[0012] As an improvement of the above solution, the snap disc has a trigger plate. The middle section of the trigger plate arches upward to form a receiving cavity. A snap spring is connected between the top of the receiving cavity and the main limiting member; first trigger surfaces and second trigger surfaces are arranged on both sides of the end of the trigger plate, and first trigger members and second trigger members are arranged on the back plate at different heights; when the snap disc runs to a predetermined position of the elastic rod, the corresponding first trigger member or second trigger member abuts against the first trigger surface or the second trigger surface, and pushes the snap disc to rotate relative to the main limiting member.

[0013] As an improvement of the above solution, a limiting cone is arranged on the upper part of the elastic rod, and the diameter of the limiting cone gradually increases in the direction away from the cleaning turntable.

[0014] Correspondingly, an embodiment of the present invention further provides a method for washing bottles, including the following steps:

[0015] Put the bottle to be cleaned into a certain limiting cage of the cleaning turntable. The limiting cage is connected to the vibration generator on the rotating disc through an elastic rod;

[0016] The cleaning turntable rotates to immerse the bottle in the limiting cage in the cleaning liquid of the cleaning tank;

[0017] An amplitude limiter is provided on the elastic rod, and the amplitude limiter restricts the vibration amplitude of the limit cage through an amplitude limit hole sleeved on the elastic rod; during the process of the cleaning turntable rotating towards the deep part of the cleaning liquid, the corresponding amplitude limiter gradually moves towards the connection end of the elastic rod and the vibration generator.

[0018] As an improvement of the above solution, the following steps are further included: the amplitude limit hole is formed by the overlap of a first elliptical hole and a second elliptical hole that can rotate relative to each other; a first trigger and a second trigger are arranged at different predetermined heights of the elastic rod, and the amplitude limiter has a rotation driving part linked with the first trigger and the second trigger. When the amplitude limiter moves to a predetermined position of the elastic rod, the first trigger or the second trigger contacts the rotation driving part to drive the first elliptical hole to rotate relative to the second elliptical hole, so as to change the shape and size of the amplitude limit hole.

[0019] Implementing the embodiments of the present invention has the following beneficial effects:

[0020] Adopting the above solution, the automatic cleaning work of the bottles can be completed. The bottles are sent into the cleaning liquid in the cleaning tank one by one by the cleaning turntable, avoiding the splashing of water. After the bottles are immersed in the cleaning liquid, the vibration generator generates vibration on the limit cage, causing the bottles and the surrounding water to impact each other, improving the cleaning effect.

[0021] The vibration generated by the vibration generator is transmitted to the limit cage through the elastic rod. The elastic rod can be made of stainless steel and has a certain elasticity. On the one hand, the elastic rod is used as a buffer tool to make the swing of the limit cage in the cleaning liquid more smooth. On the other hand, different swing amplitudes and swing trajectories can be obtained by limiting and fixing different positions of the elastic rod, so as to carry out refined control of the cleaning effect. Description of the Drawings

[0022] Figure 1 is the overall structural schematic diagram of an automatic bottle washer according to an embodiment of the present invention;

[0023] Figure 2 is Figure 1 the enlarged view of part A of

[0024] Figure 3 is the structural schematic diagram of the cleaning turntable of an automatic bottle washer according to an embodiment of the present invention;

[0025] Figure 4 is the assembly relationship diagram of the limit cage, amplitude limiter and lifting mechanism according to an embodiment of the present invention;

[0026] Figure 5 is the side view of the limit cage, amplitude limiter and lifting mechanism according to an embodiment of the present invention;

[0027] Figure 6 is a schematic structural view of an amplitude limiter according to an embodiment of the present invention;

[0028] Figure 7 is a schematic structural view of the amplitude limiter from another perspective according to an embodiment of the present invention.

[0029] Reference numerals: 1, conveying mechanism; 11, feeding conveyor belt; 12, bottle feeding trough; 13, discharging claw; 131, guiding arc surface; 14, bottle discharging trough; 15, discharging conveyor belt; 16, bottle mouth feeding port; 17, bottle mouth taking port; 2, cleaning turntable; 3, cleaning tank; 4, limiting cage; 41, vertical rod; 42, limiting rod; 5, vibration generator; 6, fence; 7, elastic rod; 71, limiting cone; 8, amplitude limiter; 81, main limiting member; 811, first elliptical hole; 812, circular limiting cavity; 813, limiting edge; 82, jumping disk; 821, second elliptical hole; 83, triggering plate; 831, first triggering surface; 832, second triggering surface; 833, accommodating cavity; 84, jumping spring; 9, lifting mechanism; 91, back plate; 92, slide rail; 93, sliding seat; 94, lead screw; 95, lifting motor; 96, first triggering member; 97, second triggering member. Detailed implementation manners

[0030] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and they do not specifically limit the present invention.

[0031] As Figure 1 shown, the first embodiment of the present invention provides an automatic bottle washing machine, including a conveying mechanism 1, a cleaning turntable 2 and a cleaning tank 3. The conveying mechanism 1 is arranged on one side of the cleaning turntable 2 and is used for feeding bottles into the cleaning turntable 2 and taking bottles out of the cleaning turntable 2. The cleaning turntable 2 is arranged in the cleaning tank 3, and a limiting cage 4 is circumferentially arranged on the edge. The limiting cage 4 is connected to the cleaning turntable 2 through a vibration generator 5. The vibration generator 5 is used for generating vibrations with a preset amplitude for the bottles when the limiting cage 4 is immersed in the cleaning liquid in the cleaning tank 3. The cleaning turntable 2 can be driven by a motor to rotate.

[0032] Combined with Figure 2As shown in the figure, specifically, the limiting cage 4 includes vertical rods 41 arranged at intervals, and a limiting ring 42 provided at the top of the vertical rods 41. Preferably, the vertical rods 41 are arranged within a semicircular range of the limiting ring 42 to facilitate the feeding and removal of the bottles. In the area outside the feeding bottle mouth 16 and the removing bottle mouth 17, a fixed fence 6 can be provided in the area outside one side of the limiting cage 4 to prevent the bottles from being thrown out due to excessive vibration amplitude of the limiting cage 4. In this embodiment, the conveying mechanism 1 includes a feeding conveyor belt 11, a bottle feeding trough 12, a discharging claw 13, a bottle discharging trough 14, and a discharging conveyor belt 15. A feeding bottle mouth 16 is provided at the end of the bottle feeding trough 12; the discharging claw 13 is used to take out the washed bottles from the limiting cage 4 and send them out through the bottle discharging trough 14 and the discharging conveyor belt 15.

[0033] By adopting the above scheme, the automatic cleaning work of the bottles can be completed. The bottles are successively fed into the cleaning liquid in the cleaning tank 3 by the cleaning turntable 2, avoiding the splashing of water. After the bottles are immersed in the cleaning liquid, the vibration generator 5 generates vibration on the limiting cage 4, causing the bottles and the surrounding water to impact each other, improving the cleaning effect.

[0034] Preferably, the limiting cage 4 is connected to the vibration generator 5 through an elastic rod 7. The vibration generator 5 can be an existing piezoelectric ceramic transducer, magnetostrictive transducer or electromagnetic ultrasonic generator, which converts electrical energy into mechanical energy of vibration in different ways, and the generated vibration is transmitted to the limiting cage 4 through the elastic rod 7. The elastic rod 7 can be made of stainless steel and has a certain elasticity. On the one hand, the elastic rod 7 is used as a buffer tool to make the swing of the limiting cage 4 in the cleaning liquid smoother. On the other hand, different amplitudes and swing trajectories can be obtained by limiting and fixing different positions of the elastic rod 7, so as to finely control the cleaning effect.

[0035] Combined with Figures 3 - 5 As shown in the figure, in some embodiments, it further includes an amplitude limiter 8 sleeved on the elastic rod 7. The amplitude limiter 8 has an amplitude limiting hole that can change in size and shape. The vibration direction of the limiting cage 4 is controlled by the shape of the amplitude limiting hole, and the vibration amplitude is controlled by the size of the amplitude limiting hole.

[0036] The amplitude limiter 8 is arranged on a lifting mechanism 9, and the lifting mechanism 9 is used to drive the amplitude limiter 8 to move along the elastic rod 7.

[0037] Preferably, the lifting mechanism 9 includes a back plate 91, a slide rail 92, a slide block 93, a lead screw 94, and a lifting motor 95; the back plate 91 extends radially from the surface of the vibration generator 5 along the cleaning turntable 2, the slide rail 92 is provided on the back plate 91, and the slide block 93 is arranged on the slide rail 92; the lead screw 94 is threadedly connected to the slide block 93 and can drive the slide block 93 to slide along the slide rail 92 by its own rotation; the lifting motor 95 is fixedly arranged on the vibration generator 5 and is connected to the lead screw 94; the amplitude limiter 8 is arranged on the slide block 93.

[0038] It should be noted that by using the above-mentioned lifting mechanism 9, electronic components can be prevented from being immersed in the cleaning liquid. Taking the specific implementation scheme of the present application as an example, the components immersed in the cleaning liquid are all made of mechanical materials such as stainless steel with strong easy-cleaning and weather resistance, which can ensure that the cleaning liquid is not contaminated by the equipment itself, extend the replacement cycle of the cleaning liquid, and also ensure the long-term reliable operation of the lifting mechanism 9.

[0039] As Figure 6 and Figure 7 As shown in the figure, in order to realize the mechanized automatic control of the shape of the amplitude limiting hole, the amplitude limiter 8 includes a limiting main part 81 and a snap disc 82 arranged on the limiting main part 81. The limiting main part 81 is provided with a first elliptical hole 811, and the snap disc 82 is provided with a second elliptical hole 821; the snap disc 82 can rotate relative to the limiting main part 81 so that the major axis of the second elliptical hole 821 can overlap or form a predetermined angle with the major axis of the first elliptical hole 811.

[0040] The snap disc 82 has a trigger plate 83. The middle section of the trigger plate 83 arches upward to form a receiving cavity 833. A snap spring 84 is connected between the top of the receiving cavity 833 and the limiting main part 81; both sides of the end of the trigger plate 83 are provided with a first trigger surface 831 and a second trigger surface 832, and the back plate 91 is provided with a first trigger member 96 and a second trigger member 97 at different heights; when the snap disc 82 runs to a predetermined position of the elastic rod 7, the corresponding first trigger member 96 or second trigger member 97 abuts against the first trigger surface 831 or the second trigger surface 832, and pushes the snap disc 82 to rotate relative to the limiting main part 81. Through the above structural design of the trigger plate 83, the structure of the snap disc 82 can be made more compact and the function can be more reliable.

[0041] It should be noted that a circular limiting cavity 812 is provided on the main limiting member 81, the snap disc 82 is arranged in the circular limiting cavity 812, and a limiting edge 813 is provided at the top of the circular limiting cavity 812, so that the snap disc 82 can rotate relative to the main limiting member 81. When the limiting cage 4 rotates to the position directly above the cleaning turntable 2 and is aligned with the bottle feeding port 16, the bottle is fed into the limiting cage 4 from the bottle feeding port 16. The cleaning turntable 2 continues to rotate, slowly immersing the limiting cage 4 into the cleaning liquid. At the same time, the amplitude limiter 8 moves towards the axis of the cleaning turntable 2 under the drive of the lifting mechanism 9, making the free section of the elastic rod 7 longer. When the limiting cage 4 completely enters the cleaning liquid, the vibration generator 5 starts to work, transmitting the vibration to the limiting cage 4 through the elastic rod 7, and the bottles in the limiting cage 4 start to perform vibration cleaning work. At this time, the major axes of the first elliptical hole 811 and the second elliptical hole 821 are in a mutually perpendicular state, and the amplitude limiting hole is approximately circular, imposing a greater constraint on the limiting rod, and the vibration amplitude of the limiting cage 4 is smaller. When the limiting cage 4 rotates to the deep part of the cleaning liquid, the amplitude limiter 8 continues to move towards the axis of the cleaning turntable 2. When it passes the second trigger member 97, the second trigger member 97 contacts the second trigger surface 832 and pushes the snap disc 82 to rotate. When the snap disc 82 rotates beyond the maximum compression point of the snap spring 84, the snap disc 82 will experience a snap jump, causing the major axes of the first elliptical hole 811 and the second elliptical hole 821 to reach a state close to overlap, and the amplitude limiting hole is approximately elliptical. At this time, the amplitude limiting hole imposes the least constraint on the limiting rod, and the limiting cage 4 can swing with a larger amplitude along the rotation direction of the cleaning turntable 2 to obtain a greater cleaning effect. Subsequently, the cleaning turntable 2 continues to rotate, and the amplitude limiter 8 starts to move in a direction away from the axis of the cleaning turntable 2. When it passes the first trigger member 96, the first trigger member 96 contacts the first trigger surface 831 and pushes the snap disc 82 to rotate in the reverse direction. When the snap disc 82 rotates beyond the maximum compression point of the snap spring 84, the snap disc 82 will experience a snap jump again, causing the major axes of the first elliptical hole 811 and the second elliptical hole 821 to return to a state close to perpendicular, thereby gradually reducing the amplitude of the limiting cage 4 and avoiding damage to the bottles caused by its rapid stop and collision with the bottles. Finally, the amplitude limiter 8 rises to the highest point. At this time, the amplitude limiting hole is sleeved on the limiting cone 71, completely fixing the elastic rod 7, ensuring that the limiting cage 4 maintains a preset distance from the bottle taking port 17 when it reaches the bottle taking port 17. Then, the front end of the discharging claw 13 contacts the bottle, and the cleaned bottle is moved to the discharging conveyor belt 15 through the guiding arc surface 131 on its side.

[0042] In some embodiments, a limiting cone 71 is provided at the upper part of the elastic rod 7, and the diameter of the limiting cone 71 gradually increases in a direction away from the cleaning turntable 2. By providing the limiting cone 71, when the amplitude limiter 8 moves to the limiting cone 71, the elastic rod 7 can be completely clamped and fixed, avoiding continuous vibration of the limiting cage 4, and ensuring that when the limiting cage 4 reaches the bottle feeding port 16 and the bottle taking port 17, the distances from the bottle feeding port 16 and the bottle taking port 17 can be kept constant, thus ensuring the stable and reliable automatic feeding and discharging.

[0043] Correspondingly, a second embodiment of the present invention provides a bottle washing method, including the following steps:

[0044] Put the bottle to be washed into a certain limiting cage 4 on the cleaning turntable 2, and the limiting cage 4 is connected to the vibration generator 5 on the rotating disk through the elastic rod 7;

[0045] The cleaning turntable 2 rotates to immerse the bottle in the limiting cage 4 in the cleaning liquid in the cleaning tank 3;

[0046] An amplitude limiter 8 is provided on the elastic rod 7, and the amplitude limiter 8 limits the vibration amplitude of the limiting cage 4 through an amplitude limiting hole sleeved on the elastic rod 7; during the process that the cleaning turntable 2 rotates towards the deep part of the cleaning liquid, the corresponding amplitude limiter 8 gradually moves towards the connection end of the elastic rod 7 and the vibration generator 5.

[0047] Preferably, the above method further includes the following steps: the amplitude limiting hole is formed by the overlap of a first elliptical hole 811 and a second elliptical hole 821 that can rotate relative to each other; a first trigger 96 and a second trigger 97 are arranged at different predetermined heights of the elastic rod 7, and the amplitude limiter 8 has a rotation driving part linked with the first trigger 96 and the second trigger 97. When the amplitude limiter 8 moves to a predetermined position of the elastic rod 7, the first trigger 96 or the second trigger 97 contacts the rotation driving part to drive the first elliptical hole 811 to rotate relative to the second elliptical hole 821, so as to change the shape and size of the amplitude limiting hole.

[0048] Specifically, when the limit cage 4 rotates to the exact upper position of the cleaning turntable 2 and is aligned with the bottle feeding port 16, the bottle is fed into the limit cage 4 from the bottle feeding port 16. The cleaning turntable 2 continues to rotate and slowly immerses the limit cage 4 into the cleaning liquid. At the same time, the amplitude limiter 8 moves towards the axis of the cleaning turntable 2 under the drive of the lifting mechanism 9, making the free section of the elastic rod 7 longer. When the limit cage 4 is completely immersed in the cleaning liquid, the vibration generator 5 starts to work, transmitting the vibration through the elastic rod 7 to the limit cage 4, and the bottles in the limit cage 4 start the vibration cleaning work. At this time, the major axes of the first elliptical hole 811 and the second elliptical hole 821 are in a mutually perpendicular state, and the amplitude limiting hole is approximately circular, imposing a greater constraint on the limit rod, so the vibration amplitude of the limit cage 4 is smaller. When the limit cage 4 rotates to the deep part of the cleaning liquid, the amplitude limiter 8 continues to move towards the axis of the cleaning turntable 2. When it passes the second trigger member 97, the second trigger member 97 contacts the second trigger surface 832 and pushes the jump disk 82 to rotate. When the jump disk 82 rotates beyond the maximum compression point of the jump spring 84, the jump disk 82 will experience a jump, causing the major axes of the first elliptical hole 811 and the second elliptical hole 821 to reach a state close to overlap, and the amplitude limiting hole is approximately elliptical. At this time, the amplitude limiting hole has the least constraint on the limit rod, and the limit cage 4 can swing with a larger amplitude along the rotation direction of the cleaning turntable 2 to obtain a greater cleaning effect. Subsequently, the cleaning turntable 2 continues to rotate, and the amplitude limiter 8 starts to move away from the axis of the cleaning turntable 2. When it passes the first trigger member 96, the first trigger member 96 contacts the first trigger surface 831 and pushes the jump disk 82 to rotate in the reverse direction. When the jump disk 82 rotates beyond the maximum compression point of the jump spring 84, the jump disk 82 will experience another jump, causing the major axes of the first elliptical hole 811 and the second elliptical hole 821 to return to a state close to perpendicular, thereby gradually reducing the amplitude of the limit cage 4 and avoiding the impact on the bottles caused by its rapid stop, which may damage the bottles. Finally, the amplitude limiter 8 rises to the highest point. At this time, the amplitude limiting hole is sleeved on the limit cone 71, completely fixing the elastic rod 7, ensuring that the limit cage 4 maintains a preset distance from the bottle taking port 17 when it reaches the bottle taking port 17. Then, the front end of the discharging claw 13 contacts the bottle, and the cleaned bottle is moved to the discharging conveyor belt 15 through the guiding arc surface 131 on its side.

[0049] With the above solution, the automatic cleaning of bottles can be completed. The bottles are successively sent into the cleaning liquid in the cleaning tank 3 by the cleaning turntable 2 one by one, avoiding water splashing. After the bottles are immersed in the cleaning liquid, the vibration generator 5 generates vibrations on the limit cage 4, causing the bottles and the surrounding water to impact each other, improving the cleaning effect. In addition, the vibration amplitude of the limit cage 4 can be controlled by the amplitude limiter 8, protecting the bottles from being damaged by rigid collisions while enhancing the cleaning ability. For example, through the oval amplitude limiting holes, and making the long axis direction of the amplitude limiting holes parallel to the surface of the cleaning turntable 2, so that the limit cage 4 swings substantially in a plane parallel to the cleaning turntable 2, avoiding the collision between the limit cage 4 and the fence 6.

[0050] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art of the present technology, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. An automatic bottle washer, characterized in that, It includes a conveying mechanism, a cleaning turntable and a cleaning tank. The conveying mechanism is arranged on one side of the cleaning turntable and is used to send the bottles into the cleaning turntable and take them out from the cleaning turntable. The cleaning turntable is arranged in the cleaning tank, and a limiting cage is circumferentially arranged on the edge. The limiting cage is connected to the cleaning turntable through a vibration generator, and the vibration generator is used to generate vibrations with a preset amplitude for the bottles when the limiting cage is immersed in the cleaning liquid in the cleaning tank. The limiting cage is connected to the vibration generator through an elastic rod. It further includes an amplitude limiter sleeved on the elastic rod. The amplitude limiter has an amplitude limiting hole that can change in size and shape. The vibration direction of the limiting cage is controlled by the shape of the amplitude limiting hole, and the vibration amplitude is controlled by the size of the amplitude limiting hole. The amplitude limiter includes a main limiting part and a jump disk arranged on the main limiting part. A first elliptical hole is arranged on the main limiting part, and a second elliptical hole is arranged on the jump disk. The jump disk can rotate relative to the main limiting part so that the major axis of the second elliptical hole can overlap or form a predetermined angle with the major axis of the first elliptical hole.

2. The automatic bottle washer according to claim 1, wherein, The amplitude limiter is arranged on a lifting mechanism, and the lifting mechanism is used to drive the amplitude limiter to move along the elastic rod.

3. The automatic bottle washer according to claim 2, characterized in that, The lifting mechanism includes a back plate, a slide rail, a slide seat, a lead screw and a lifting motor. The back plate extends radially along the surface of the vibration generator from the cleaning turntable, and the slide rail is arranged on the back plate. The slide seat is arranged on the slide rail. The lead screw is threadedly connected to the slide seat and can drive the slide seat to slide along the slide rail through its own rotation. The lifting motor is fixedly arranged on the vibration generator and is connected to the lead screw. The amplitude limiter is arranged on the slide seat.

4. The automatic bottle washer according to claim 3, characterized in that, The jump disk has a trigger plate. The middle section of the trigger plate arches upward to form a receiving cavity. A jump spring is connected between the top of the receiving cavity and the main limiting part. First trigger surfaces and second trigger surfaces are arranged on both sides of the end of the trigger plate. The back plate is provided with a first trigger part and a second trigger part at different heights. When the jump disk runs to a predetermined position on the elastic rod, the corresponding first trigger part or second trigger part abuts against the first trigger surface or the second trigger surface, pushing the jump disk to rotate relative to the main limiting part.

5. The automatic bottle washer according to claim 1, characterized in that, A limiting cone is arranged on the upper part of the elastic rod, and the diameter of the limiting cone gradually increases in the direction away from the cleaning turntable.

6. A bottle washing method, characterized in that, Using the automatic bottle washer according to any one of claims 1-5, it includes the following steps: Put the bottles to be cleaned into a certain limiting cage on the cleaning turntable. The limiting cage is connected to the vibration generator on the rotating disk through an elastic rod. The cleaning turntable rotates to immerse the bottles in the limiting cage in the cleaning liquid in the cleaning tank. An amplitude limiter is arranged on the elastic rod. The amplitude limiter limits the vibration amplitude of the limiting cage through the amplitude limiting hole sleeved on the elastic rod. During the process of the cleaning turntable rotating deeper into the cleaning liquid, the corresponding amplitude limiter gradually moves towards the connection end of the elastic rod and the vibration generator.

7. The bottle washing method according to claim 6, wherein, It further includes the following steps: The amplitude limit hole is formed by the overlap of a first elliptical hole and a second elliptical hole that can rotate relative to each other; a first trigger and a second trigger are arranged at different predetermined heights of the elastic rod, and the amplitude limiter has a rotation driving member linked to the first trigger and the second trigger. When the amplitude limiter moves to a predetermined position of the elastic rod, the first trigger or the second trigger contacts the rotation driving member, driving the first elliptical hole to rotate relative to the second elliptical hole so as to change the shape and size of the amplitude limit hole.

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