Automatic model changing system and positioning and layout method for model rollers of engineering tire calender

Abstract

The invention relates to the technical field of tire production equipment, in particular to an automatic remodeling system and a positioning and layout method for a model roller of an engineering tire calender. Comprising at least one AGV trolley which is provided with a magnetic stripe or a laser navigation system and can autonomously move along a preset path; the carrier special for the profile rollers is a C-shaped frame, is fixedly installed on the AGV and is used for bearing and transporting the profile rollers, and the C-shaped frame is provided with a bearing structure and a horizontal floating mechanism to ensure the stability and precision of the profile rollers in the transportation process; the storage frame is used for storing unused forming rollers and is provided with a positioning structure to prevent the forming rollers from rotating in the storage process; according to the engineering tire calender type roller automatic remodeling system based on the AGV trolley, by introducing the AGV trolley and an automatic system matched with the AGV trolley, rapid and accurate carrying and replacing of the type roller are achieved, the roller replacing time is greatly shortened, and the continuous operation capacity and the overall production efficiency of a tire calender are improved.

Description

Technical Field

[0001] The invention relates to the technical field of tire production equipment, and in particular to an automatic mold changing system, positioning and layout method for mold rollers of an engineering tire calender. Background Art

[0002] In the tire manufacturing industry, the tire calender is a key production equipment, and its performance and efficiency directly affect the calendering quality and production efficiency of the tire inner liner film. The cross-sectional shapes of the inner liner film are diverse to meet the process requirements of different tires. Therefore, the frequent replacement of the tire calender rollers has become an important and complex operation in the production process.

[0003] In the traditional method, a special crane in the workshop is used with a special lifting device to lift and replace the mold roller. However, due to the large size (Φ660*2130mm), high weight (about 1100kg) and high precision (high dimensional accuracy, surface roughness requirement of 0.2μm) of the mold roller, it is very easy to cause damage due to improper operation or equipment limitations during the lifting process, which not only increases the maintenance cost, but also prolongs the production cycle.

[0004] Although Guizhou Tire Factory and other enterprises have tried to introduce special roller changing trolleys and integrate hydraulic and pneumatic technologies to realize roller changing automation, these systems often occupy a large area, which is not conducive to the space optimization of the production workshop. At the same time, its automation level still needs to be improved, and a lot of manual intervention is still required in actual operation, which increases labor costs and reduces roller changing efficiency.

[0005] Frequent replacement of the mold rollers and each replacement takes a long time, which not only affects the continuous operation capacity of the tire calender, but also increases the production cost caused by downtime and waiting. In addition, once the mold roller is damaged, its high repair cost and long manufacturing cycle will cause immeasurable losses to production. Summary of the invention

[0006] The invention provides an engineering tire calender roller automatic changing system based on an AGV trolley, the purpose of which is to quickly replace the calender roller.

[0007] To achieve the above object, the technical solution of the present invention is:

[0008] The present invention provides an automatic profile changing system for profile rollers of an engineering tire calender, comprising:

[0009] At least one AGV with a magnetic stripe or laser navigation system that can move autonomously along a preset path;

[0010] The special carrier for the profile roller is a C-shaped frame, which is fixedly installed on the AGV trolley and is used to carry and transport the profile roller. The C-shaped frame is designed with a load-bearing structure and a horizontal floating mechanism to ensure the stability and accuracy of the profile roller during transportation;

[0011] A storage rack is used to store unused mold rollers and is provided with a positioning structure to prevent the mold rollers from rotating during storage;

[0012] Preheating box, used to preheat the mold rollers to be used to improve production efficiency;

[0013] The control system is used to control the movement of the AGV, the storage and retrieval of the forming rollers, and the preheating process, including automatic mode and manual mode.

[0014] Furthermore, the AGV trolley has a positioning accuracy and can achieve positioning within ±10mm in front of the calender, and achieve an alignment accuracy within ±1mm with the calender through a secondary positioning mechanism.

[0015] Furthermore, the C-shaped frame includes an adjusting bolt for adjusting the height of the profile roller on the AGV trolley to meet the requirements of different installation positions.

[0016] Furthermore, the storage rack and the preheating box are both provided with docking ports matching the C-shaped rack to facilitate automatic storage and retrieval of the molding rollers.

[0017] Furthermore, the control system also includes a touch screen operation interface and a remote controller, which facilitates the operator to switch between automatic mode and manual mode and to monitor and debug the system in real time.

[0018] Furthermore, the storage rack has a diffuse reflection switch for detecting whether there are molded rollers on the rack. If there are molded rollers, the control system prohibits the AGV from moving to the workstation.

[0019] Furthermore, it also includes safety protection mechanisms, including emergency stop buttons and collision sensors, to ensure that in the event of an abnormal situation, the power supply can be quickly cut off and all actions can be stopped to ensure the safety of equipment and personnel.

[0020] A positioning method includes two arc-shaped positioning frames, and the positioning frames are provided with guide wheels;

[0021] The AGV trolley carries the calender roller and uses the tapered sleeve and tapered hole on the calender core shaft for alignment and positioning; there is a horizontal floating mechanism between the special carrier for the roller and the AGV trolley, and the horizontal floating mechanism includes a linear guide rail. The special carrier for the roller can move along the linear rail and align with the center of the calender roller in the horizontal direction to reduce the left and right alignment resistance. After alignment, the position of the AGV trolley is determined, and two positioning frames are fixed on both sides of the AGV trolley so that when replacing the roller, the AGV trolley can enter along the positioned positioning frames; a hydraulic buffer is provided on the AGV trolley to limit the range of movement of the special carrier for the roller along the linear guide rail.

[0022] The AGV trolley 1 is provided with a visual system and a height-adjustable lifting mechanism. The visual system is used to locate the center of the calender roller. The control system adjusts the special roller carrier 2 on the AGV trolley by controlling the height-adjustable lifting mechanism to align the center of the calender roller in the height direction.

[0023] A layout method, with a calender as a positioning point, a storage rack and a preheating box are arranged in front of the calender and distributed on both sides of the axis of the calender; the preheating box is arranged in a corner of the outer side.

[0024] The beneficial effects achieved by the present invention are:

[0025] The invention discloses an automatic mold changing system for mold rollers of an engineering tire calender based on an AGV trolley. By introducing the AGV trolley and its supporting automation system, the mold rollers can be quickly and accurately transported and replaced, which greatly shortens the roller changing time and improves the continuous operation capability and overall production efficiency of the tire calender.

[0026] The present invention discloses an automatic mold changing system for engineering tire calendering machine rollers based on an AGV trolley. The automatic mold changing system reduces the need for manual operation and reduces the dependence on the professional skills of operators. Meanwhile, it also avoids the potential safety hazards caused by improper manual operation and reduces the labor intensity of workers.

[0027] The invention discloses an automatic mold changing system for mold rollers of an engineering tire calender based on an AGV trolley. The design of a C-shaped frame and a horizontal floating mechanism ensures the stability and accuracy of the mold rollers during transportation and installation, effectively avoids damage to the mold rollers due to collisions, vibrations and the like, and reduces maintenance costs and production cycles.

[0028] The invention discloses an automatic mold changing system for engineering tire calendering machine rolls based on an AGV trolley. The reasonable layout of the storage rack and the preheating box not only saves space, but also makes the entire mold changing process smoother and more efficient, thereby improving the space utilization rate of the production workshop.

[0029] The present invention discloses an automatic roller changing system for an engineering tire calender based on an AGV trolley. The control system provides an automatic mode and a manual mode, which are convenient for operators to switch flexibly under different situations. It is also convenient for real-time monitoring and debugging of the system, thereby enhancing the flexibility and maintainability of the system.

[0030] The invention discloses an automatic roller changing system for an engineering tire calender based on an AGV trolley, which is equipped with safety protection mechanisms such as an emergency stop button, a collision sensor, etc., which can quickly cut off the power supply and stop all actions when an abnormal situation occurs, thereby effectively ensuring the safety of equipment and personnel.

[0031] The present invention discloses an automatic roller changing system for an engineering tire calender based on an AGV trolley. The implementation of the present invention promotes the development of tire production towards intelligence and automation, and provides strong support for the transformation and upgrading of the tire manufacturing industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0033] Figure 1 The overall structural diagram of an automatic roller changing system for an engineering tire calender based on an AGV trolley is shown in FIG.

[0034] Figure 2 This is a layout diagram of an automatic roller changing system for an engineering tire calender based on an AGV vehicle;

[0035] Figure 3 The AGV trolley of an engineering tire calendering machine automatic shaped roller changing system based on an AGV trolley is provided with a special carrier structure diagram of the shaped roller;

[0036] Figure 4 This is a diagram of an AGV-based trolley-based engineering tire calender roll automatic change system, with a AGV trolley carrying a special carrier for picking up and placing the rolls;

[0037] Figure 5 This is a structural diagram of the positioning frame of an engineering tire calender roll automatic changing system based on an AGV trolley;

[0038] Figure 6 This is an enlarged view of the storage rack storing the mold rolls of an engineering tire calender mold roll automatic changing system based on an AGV trolley;

[0039] Figure 7This is a storage rack and mold roller structure diagram of an engineering tire calender mold roller automatic change system based on an AGV trolley;

[0040] Figure 8 A side view of the storage rack and the molding rollers when the storage rack begins to put molding rollers;

[0041] Fig. 9 for Figure 8 The cross-sectional view at AA;

[0042] Fig.10 Side view of the storage rack and the mold roller after the storage rack is put into the mold roller;

[0043] Fig.11 for Fig.10 Cross-sectional view at BB;

[0044] In the figure, 1, AGV trolley; 2, special carrier for roller; 21, linear guide; 22, hydraulic buffer; 23, adjustment bolt; 24, rolling wheel;

[0045] 3. Storage rack; 31. Rack body; 32. Limiting mechanism; 321. Limiting rack; 322. Limiting block;

[0046] 4. Preheating box; 5. Calender;

[0047] 6. Positioning frame; 61. Guide wheel; 7. Docking port; 8. Forming roller; 81. End face notch.

[0048] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0051] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0052] like Figures 1 to 9 As shown, the present invention provides an automatic type-changing system for type roller 8 of an engineering tire calender 5, comprising:

[0053] At least one AGV 1, equipped with a magnetic stripe or laser navigation system, capable of autonomously moving along a preset path;

[0054] The AGV (Automatic Guided Vehicle) trolley is equipped with a magnetic strip or laser navigation system and can move autonomously along a preset path without manual driving. This design ensures the fast and accurate transportation of the roller 8 within the factory.

[0055] Magnetic strip navigation lays magnetic strips on the ground, and the AGV 1 locates by sensing the magnetic strips; laser navigation uses laser scanners and reflective plates to build an environmental map to achieve precise positioning. Both methods have their own advantages. Magnetic strip navigation has lower costs but slightly less flexibility, while laser navigation is more flexible but more expensive.

[0056] The special carrier 2 for the mold roller is a C-shaped frame, which is fixedly installed on the AGV trolley 1 and is used to carry and transport the mold roller 8. The C-shaped frame is designed with a load-bearing structure and a horizontal floating mechanism to ensure the stability and accuracy of the mold roller 8 during transportation;

[0057] A row of rolling wheels 24 are arranged on both sides of the column of the C-shaped frame to receive the mold roller 8, which can ensure that the mold roller 8 can enter the C-shaped frame smoothly. The design fully considers the weight and size of the mold roller 8 and is made of high-strength material to ensure that it can bear the weight of the mold roller 8 and remain stable during transportation.

[0058] In order to further improve the stability and accuracy during transportation, the C-shaped frame is also equipped with a horizontal floating mechanism. The horizontal floating mechanism includes a linear guide rail 21 and a hydraulic buffer 22. The C-shaped frame can move horizontally left and right along the linear guide rail 21 on the AGV trolley 1. The hydraulic buffer 22 limits the left and right movement range of the C-shaped frame. This mechanism can also absorb the impact of vibration and uneven road surface to a certain extent, reduce the shaking of the roller 8 during transportation, and protect the surface of the roller 8 from damage.

[0059] The storage rack 3 is used to store unused mold rollers 8 and is provided with a positioning structure (using the notch 81 on the end surface of the mold roller for positioning and anti-rotation) to prevent the mold roller 8 from rotating during storage.

[0060] The storage rack 3 is used to store unused mold rollers 8. Reasonable layout and structural design ensure that the mold rollers 8 can be stored in an orderly and safe manner.

[0061] In order to prevent the mold roller 8 from rotating or moving during storage, the storage rack 3 is designed with a positioning structure, such as a slot, a locking device, etc., to ensure that the position of the mold roller 8 is fixed and stable. Figure 6 The storage rack 3 has a positioning structure at the tail end, and the notch 81 on the end surface of the molding roller 8 is used for positioning and preventing rotation.

[0062] The preheating box 4 is used to preheat the molding roller 8 to be used to improve production efficiency.

[0063] The preheating box 4 is used to preheat the mold roller 8 to be used. Through preheating, the mold roller 8 can reach a suitable working temperature, reduce the material stress change caused by temperature difference, and improve production efficiency and product quality.

[0064] The preheating box 4 is equipped with a temperature control system, which can accurately control the preheating temperature and time to ensure that the forming roller 8 is put into use in the best state.

[0065] The control system is used to control the movement of the AGV trolley 1, the storage and retrieval of the molding roller 8, and the preheating process, including an automatic mode and a manual mode.

[0066] The control system is the core of the entire automatic mold changing system and is responsible for coordinating the operation of each part. It can automatically control the movement of the AGV 1, the access and preheating of the mold roller 8 through a preset program or according to real-time data.

[0067] The control system provides two operating modes: automatic mode and manual mode. In automatic mode, the system can automatically complete all tasks and reduce human intervention; in manual mode, the operator can manually control certain steps to meet special needs or handle abnormal situations.

[0068] The AGV 1 has a positioning accuracy that can achieve a positioning within ±10mm in front of the calender 5, and achieve an alignment accuracy within 5±1mm with the calender through a secondary positioning mechanism. This level of accuracy ensures that the AGV 1 can accurately park at the designated position, providing a good foundation for the subsequent replacement operation of the mold roller 8.

[0069] In the secondary positioning mechanism, after the AGV 1 is initially positioned, the two arc-shaped positioning frames 6 can achieve an alignment accuracy within 5±1mm with the calender. This high-precision alignment ensures that the forming roller 8 can be accurately installed on the calender 5, avoiding problems caused by position deviation.

[0070] The C-shaped frame includes an adjusting bolt 23 for adjusting the height of the profile roller 8 on the AGV trolley 1 to meet the requirements of different installation positions.

[0071] The C-shaped frame is designed with adjustment bolts 23, which allow the operator to adjust the height of the profile roller 8 on the AGV 1 according to actual needs. Different calenders 5 or production lines may require the profile roller 8 to be installed at different heights. By adjusting the bolts 23, these different installation requirements can be quickly and easily adapted, improving the flexibility and versatility of the system.

[0072] The storage rack 3 and the preheating box 4 are both provided with a docking port 7 matching the C-shaped rack, so as to facilitate the automatic storage and retrieval of the forming roller 8.

[0073] The storage rack 3 and the preheating box 4 are both provided with docking ports 7 that match the C-shaped rack. The design of these docking ports 7 makes the automatic storage and retrieval of the mold roller 8 easier and more efficient. When the C-shaped rack carries the mold roller 8 close to the storage rack 3 or the preheating box 4, the precise docking and locking mechanism can ensure that the mold roller 8 is stored or taken out safely and stably. This not only improves the operating efficiency, but also reduces the errors and risks that may be caused by manual operation.

[0074] The control system also includes a touch screen operation interface and a remote controller, which facilitates the operator to switch between automatic mode and manual mode and to monitor and debug the system in real time.

[0075] The storage rack has a diffuse reflection switch that can detect whether there are molded rollers on the rack. If there are molded rollers, the control system prohibits the AGV from moving to that workstation.

[0076] The control system is equipped with a touch screen operation interface, which allows operators to intuitively understand the system's operating status and parameter settings. Through the touch screen, operators can easily switch between automatic and manual modes, and perform real-time monitoring and debugging as needed. This operation method is convenient and intuitive, improving the ease of use and operability of the system.

[0077] In addition to the touch screen operation interface, the system also provides a remote control as an alternative operation method. The remote control allows operators to control and adjust the system within a certain distance, increasing the flexibility and convenience of operation. Especially in some situations where it is necessary to operate away from the equipment, such as when the equipment is running or there are safety hazards.

[0078] It also includes safety protection mechanisms, including emergency stop buttons and collision sensors, to ensure that in the event of an abnormal situation, the power supply can be quickly cut off and all actions can be stopped to ensure the safety of equipment and personnel.

[0079] In order to ensure that the power supply can be quickly cut off and all actions can be stopped in the event of an abnormal situation, the system is equipped with an emergency stop button. These buttons are usually installed in a conspicuous and easy-to-reach position. Once the operator finds an abnormal situation or needs to stop the equipment urgently, they only need to press the button to achieve a quick stop.

[0080] The system is also equipped with collision sensors, which can monitor the dynamic changes of the AGV 1 and its surrounding environment in real time. Once a collision or potential collision risk is detected, the emergency stop mechanism will be triggered immediately to protect the safety of equipment and personnel. This design of multiple safety protection mechanisms makes the entire system safer and more reliable.

[0081] A positioning method includes two arc-shaped positioning frames 6 , on which guide wheels 61 are arranged.

[0082] The positioning frame 6 adopts an arc-shaped design, which can better adapt to the trajectory changes of the AGV trolley 1 (automatic guided vehicle) during movement and ensure stable positioning. Installed on the positioning frame 6, it helps to guide the AGV trolley 1 to move accurately along the predetermined path and reduce deviation.

[0083] The AGV trolley 1 carries the calender 5 type roller 8, and uses the tapered sleeve and tapered hole on the core shaft of the calender 5 to align and position; there is a horizontal floating mechanism between the special carrier 2 for the type roller and the AGV trolley 1, and the horizontal floating mechanism includes a linear guide rail 21. The special carrier 2 for the type roller can move along the linear guide rail 21, aligning the center of the calender type roller in the horizontal direction, reducing the left and right alignment resistance, and adjusting the bolts 23 to adjust the up and down height. After alignment, the position of the AGV trolley 1 is determined, and two positioning frames 6 are fixed on both sides of the AGV trolley 1, so that when the type roller 8 is replaced, the AGV trolley 1 can enter along the positioned fixed frame. There is a linear guide rail under the carrier on the trolley, and the guide frame can make the carrier move horizontally and align the center of the calender type roller in the horizontal direction.

[0084] The AGV trolley 1 is provided with a visual system and a height-adjustable lifting mechanism. The visual system is used to locate the center of the calender roller. The control system adjusts the special roller carrier 2 on the AGV trolley by controlling the height-adjustable lifting mechanism to align the center of the calender roller in the height direction.

[0085] The AGV trolley 1 can be aligned through the visual system and the height-adjustable lifting mechanism, and then the positioning frame 6 can be fixed. Each time the AGV trolley 1 changes the mold stick, it can be re-positioned through the positioning frame to improve the positioning accuracy. Another solution is that each time the AGV trolley 1 changes the mold stick, the height of the AGV trolley 1 is directly adjusted through the visual system and the height-adjustable lifting mechanism for positioning.

[0086] The AGV trolley 1 is provided with a hydraulic buffer 22, which is used to limit the range of movement of the dedicated roller carrier 2 along the linear guide rail 21. The linear guide rail 21 and the adjustment bolt 23 are used to achieve fine adjustment of the roller 8 in the horizontal and vertical directions to improve the alignment accuracy. The movement range of the dedicated roller carrier 2 is limited to prevent damage caused by excessive movement.

[0087] like Figure 2 As shown, a layout method is used, with the calender 5 as the positioning point, the storage rack 3 and the preheating box 4 are arranged in front of the calender 5 and distributed on both sides of the axis of the calender 5. The preheating box 4 is arranged in a corner of the outside.

[0088] The storage rack 3 and the preheating box 4 are distributed on both sides of the axis of the calender 5, which can ensure sufficient operating space and facilitate the movement of personnel and equipment. The preheating box 4 is set in an outer corner to reduce the impact on the main operating area and facilitate connection with the conveying system to achieve automatic preheating and conveying.

[0089] The current mold rollers are stored directly on the frame without a limit structure. This causes the mold rollers to roll or shift easily when subjected to external forces (such as collisions and vibrations during transportation), increasing the risk of damage. Since the mold rollers may roll due to instability, not only may the mold rollers themselves be damaged, but also may cause safety hazards to surrounding personnel and equipment.

[0090] like Figure 6 and Figure 7 As shown, the storage rack 3 includes a V-shaped frame 31 and a limiting mechanism 32. The V-shaped frame 31 is used to support the outer side of the molding roller 8, and the limiting mechanism 32 is used to limit the rotation of the molding roller 8. The limiting mechanism 32 is a limiting frame 321 made of steel material, and a limiting block 322 is fixed on the limiting frame 321. The V-shaped frame 31 and the limiting block 322 are made of nylon material to prevent scratches on the molding roller 8, and the limiting block 322 is a trapezoidal block that is small on the top and large on the bottom. Three connecting blocks are provided on the end face of the molding roller 8, and the end face notches 81 between the connecting blocks are trapezoidal openings that are large on the outside and small on the inside. When the molding roller 8 is placed in the storage rack, the trapezoidal block is stuck in the trapezoidal opening. Figure 8and Fig. 9 When the upper edge of the trapezoidal block is first inserted, the maximum distance H from the outer edge of the trapezoidal opening of the mold roller 8 is 25 mm. Fig.10 and Fig.11 When fully inserted, the minimum distance h between the end face of the trapezoidal block and the trapezoidal mouth is 1mm.

[0091] By introducing the limiting mechanism 32, including the limiting frame 321 and the limiting block 322, the rotation and displacement of the mold roller 8 during the storage process are effectively limited, the stability of the storage of the mold roller 8 is greatly improved, and the risk of damage caused by rolling or displacement is reduced. The stable storage method reduces the safety hazards caused by the rolling of the mold roller 8 due to instability, and protects the safety of surrounding personnel and equipment. The trapezoidal opening on the limiting block 322 is fully utilized, and the limiting block 322 is also designed to be trapezoidal, so that the mold roller 8 can be easily and accurately inserted and removed, which simplifies the operation process, improves work efficiency, and ensures the stability of the mold roller 8 during storage. The limiting block 322 is made of nylon material, which not only ensures sufficient strength to limit the movement of the mold roller 8, but also avoids scratching the surface of the mold roller 8. In addition, the stable storage method also helps to reduce the erosion of the mold roller 8 by external environmental factors and prolong its service life. By adjusting the size and shape of the limiting block 322 and the frame 31, this solution can adapt to mold rollers 8 of different specifications and sizes, and improves the versatility and flexibility of the storage rack. The design of the V-shaped frame 31 allows multiple rollers 8 to be arranged compactly, effectively utilizing storage space and reducing floor space.

[0092] like Figure 2 As shown, 0-9 are set in the working area of ​​the changing roller 8, with a total of 10 working points. The AGV trolley 1 is controlled by the program to automatically take the used roller 8 from the calender 5 and put it on the storage rack 3, and then take the preheated roller 8 from the preheating box 4 and install it on the calender 5. Put the next roller 8 to be used into the preheating box 4 for preparation. The above operation can also be performed manually using a remote control. The roller change of the calender 5 is the origin 0; No. 1-3: the middle position of the left and right storage racks 3 of the roller 8; No. 4-9: the position of the storage rack 3 and the preheating box 4 of the roller 8.

[0093] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An automatic roller changing system for an engineering tire calender, characterized in that: include: At least one AGV (1) having a magnetic stripe or laser navigation system capable of autonomously moving along a preset path; The special carrier (2) for the mold roller is a C-shaped frame, which is fixedly installed on the AGV trolley (1) and is used to carry and transport the mold roller (8). The C-shaped frame is designed with a load-bearing structure and a horizontal floating mechanism to ensure the stability and accuracy of the mold roller (8) during transportation; A storage rack (3) is used to store unused mold rollers (8) and is provided with a positioning structure to prevent the mold rollers (8) from rotating during storage; A preheating box (4) is used to preheat the molding roller (8) to be used, thereby improving production efficiency; The control system is used to control the movement of an AGV trolley (1), the storage and retrieval of a molding roller (8) and the preheating process, and includes an automatic mode and a manual mode.

2. The automatic roller changing system for engineering tire calender according to claim 1, characterized in that: The AGV trolley (1) has positioning accuracy and can achieve positioning within ±10 mm in front of the calender (5), and can achieve alignment accuracy within ±1 mm with the calender (5) through a secondary positioning mechanism.

3. The automatic profile changing system for profile rollers of an engineering tire calender according to claim 1, characterized in that: The C-shaped frame comprises an adjusting bolt (23) for adjusting the height of the profile roller (8) on the AGV trolley (1) to meet the requirements of different installation positions.

4. The automatic roller changing system for engineering tire calendering machine according to claim 1, characterized in that: The storage rack (3) and the preheating box (4) are both provided with a docking port (7) matching the C-shaped rack, so as to facilitate the automatic storage and retrieval of the forming roller (8).

5. The automatic roller changing system for engineering tire calender according to claim 1 is characterized by: The control system also includes a touch screen operation interface and a remote controller, which facilitates the operator to switch between automatic mode and manual mode and to monitor and debug the system in real time.

6. The automatic roller changing system for engineering tire calender according to claim 1, characterized in that: The storage rack has a diffuse reflection switch to detect whether there are molded rollers on the rack. If there are molded rollers, the control system prohibits the AGV from moving to that workstation.

7. The automatic roller changing system for engineering tire calendering machine according to claim 1, characterized in that: It also includes safety protection mechanisms, including emergency stop buttons and collision sensors, to ensure that in the event of an abnormal situation, the power supply can be quickly cut off and all actions can be stopped to ensure the safety of equipment and personnel.

8. A positioning method, characterized in that: The method is used for an AGV trolley with a special carrier for shaped rollers fixed thereon according to any one of claims 1 to 7, comprising two arc-shaped positioning frames (6), and the positioning frames (6) are provided with guide wheels (61); The AGV trolley (1) carries the calender (5) forming roller (8), and uses the tapered sleeve and tapered hole on the core shaft of the calender (5) to align and position; a horizontal floating mechanism is provided between the special carrier (2) for the forming roller and the AGV trolley (1), and the horizontal floating mechanism includes a linear guide rail (21). The special carrier (2) for the forming roller can move along the linear guide rail (21) and align with the center of the calender forming roller in the horizontal direction to reduce the left and right alignment resistance. After alignment, the position of the AGV trolley (1) is determined, and two positioning frames (6) are fixed on both sides of the AGV trolley (1), so that when the forming roller (8) is replaced, the AGV trolley (1) can enter along the positioned positioning frames (6); The AGV trolley (1) is provided with a hydraulic buffer (22) for limiting the range of movement of the roller-specific carrier (2) along the linear guide rail (21).

9. A positioning method according to claim 8, characterized in that: The AGV trolley (1) is provided with a visual system and a height-adjustable lifting mechanism. The visual system is used to locate the center of the calender roll. The control system adjusts the special roller carrier (2) on the AGV trolley by controlling the height-adjustable lifting mechanism to align the center of the calender roll in the height direction.

10. A layout method, characterized in that: The layout is used for the automatic mold changing system described in any one of claims 1 to 6, with the calender (5) as the positioning point, the storage rack (3) and the preheating box (4) are arranged on the front side of the calender (5) and distributed on both sides of the axis of the calender (5); the preheating box (4) is arranged in a corner on the outside.

Images