Feeding device and automatic sleeve gluing system for rollers

Abstract

The application relates to a feeding device and a roller automatic sleeve gluing system, the feeding device comprising a sleeve expanding device, the sleeve expanding device comprising: a feeding track provided with a plurality of sleeve accommodating cavities for accommodating rubber sleeves and spaced apart along a first direction; a heat supply mechanism comprising a plurality of heat supply pipes distributed along the first direction, and two adjacent heat supply pipes are connected through at least one accommodating cavity to communicate with the rubber sleeve in the accommodating cavity to form a heating channel for the flow of a heating medium; wherein all the heating channels are communicated, and the heating medium is arranged to heat the rubber sleeve. The feeding device of the application can safely and stably expand multiple rubber sleeves at one time through the physical heating and heat conduction of the heating medium, does not cause structural damage to the rubber sleeve, and effectively improves the production efficiency of the roller sleeve gluing.

Description

Technical Field

[0001] This application relates to the field of mechanical equipment technology, and in particular to a feeding device and an automatic roller coating system. Background Technology

[0002] In logistics conveying equipment, in order to avoid direct contact between the rollers and the material pallets and to prevent the generation of metal dust by friction between the rollers and the material pallets, it is necessary to coat the rollers with rubber. That is, to put a rubber sleeve on the surface of the rollers to achieve indirect contact between the rollers and the material pallets, while also increasing the friction between the rollers and the logistics pallets.

[0003] When fitting the roller into the rubber sleeve, the sleeve needs to be pre-expanded to ensure the roller can be smoothly fitted inside. In related technologies, a spreading structure is generally used to directly apply force to the rubber sleeve to achieve this. However, this method is difficult to control the force applied to the sleeve, easily causing structural damage and rendering the sleeve unusable, thus affecting the production efficiency of roller sleeve fitting. Furthermore, this method is also difficult to spread a batch of rubber sleeves at once, which also reduces the production efficiency of roller sleeve fitting. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application provides an expansion sleeve device, a feeding device, and an automatic roller sleeve system, which can safely expand the sleeve without causing structural damage to the sleeve, thereby improving the production efficiency of roller sleeve application.

[0005] In a first aspect, this application provides an expansion sleeve device, comprising:

[0006] The feeding track is provided with multiple receiving cavities spaced apart along the first direction for receiving rubber sleeves;

[0007] The heating mechanism includes multiple heating pipes spaced apart along the first direction, with adjacent heating pipes connected through at least one receiving cavity to form a heating channel for the flow of heating medium by communicating with the rubber sleeve inside the receiving cavity.

[0008] All of the heating channels are connected, and the heating medium is configured to heat the rubber sleeve.

[0009] The expansion sleeve device according to the first aspect of this application has at least the following beneficial effects:

[0010] The expansion sleeve device of this application, through the coordinated arrangement of the feeding track and the heating mechanism, connects two adjacent heating pipes on the heating mechanism with the receiving cavity on the feeding track, so that the two adjacent heating pipes are connected to the rubber sleeve in the receiving cavity to form a heating channel for the flow of heating medium. By connecting all the heating channels, multiple rubber sleeves can be safely and stably expanded at one time through physical heating and heat conduction by the heating medium, without causing structural damage to the rubber sleeves, and effectively improving the production efficiency of roller rubber sleeves.

[0011] In some embodiments, the heating mechanism further includes a heat transfer pipe, a heat return pipe, and a heater for outputting a heating medium. The heating pipe at its closest end along the first direction is connected to the heater through the heat transfer pipe, and the heating pipe at its farthest end along the first direction is connected to the heater through the heat return pipe. All the heating channels are connected in series along the first direction.

[0012] Secondly, this application provides a feeding device, including:

[0013] The expansion sleeve device as described above;

[0014] The frame is provided with a heating zone and an assembly zone arranged along the first direction, and all the heating pipes are provided on the frame and distributed on the side of the heating zone;

[0015] The feeding track is configured to move along the first direction, so as to drive the rubber sleeves thereon through the heating zone and the assembly zone one by one, and to make the rubber sleeves communicate with the heating pipe in the heating zone.

[0016] The feeding device according to the second aspect of this application has at least the following beneficial effects:

[0017] The feeding device of this application, by driving the rubber sleeves on the feeding track one by one through the heating zone and the assembly zone, ensures that each rubber sleeve is continuously heated and expanded in the heating zone. This allows the rubber sleeves moving to the assembly zone to expand to a state suitable for smooth insertion of the rollers, facilitating the assembly of the rollers and rubber sleeves. Furthermore, by transporting the heated and expanded rubber sleeves one by one to the assembly zone, the feeding track also improves the continuity of roller-rubber sleeve assembly, completing the assembly of batches of rollers and rubber sleeves in a short time, further increasing the production efficiency of roller rubber sleeve production.

[0018] In some embodiments, the rubber sleeve has a first heating state and a second heating state;

[0019] When the rubber sleeve is in the first heating state, the rubber sleeve is locked in the heating zone by the frame to seal and communicate with the heating pipe;

[0020] When the rubber sleeve is in the second heating state, the rubber sleeve is released by the frame so that it can move along the first direction under the drive of the feeding track.

[0021] In some embodiments, the frame includes a first limiting plate and a second limiting plate disposed opposite to each other, and the heating zone is defined between the first limiting plate and the second limiting plate;

[0022] The first limiting plate is configured to abut the rubber sleeve against the second limiting plate, so that the rubber sleeve is in the first heating state;

[0023] Furthermore, the first limiting plate can rotate relative to the feeding track to loosen the rubber sleeve, so that the rubber sleeve is in the second heating state.

[0024] In some embodiments, both the first limiting plate and the second limiting plate are provided with a plurality of heating pipes along the first direction. When the rubber sleeve is located in the heating zone, the heating pipes on the first limiting plate are connected to the heating pipes on the second limiting plate through the rubber sleeve.

[0025] In some embodiments, the sidewalls of the first limiting plate and the second limiting plate are provided with mounting holes for connecting the heating pipe. When the rubber sleeve is in the first heating state, the two ports of the rubber sleeve respectively cover the mounting holes on the first limiting plate and the second limiting plate.

[0026] In some embodiments, the frame further includes a feeding area, and the assembly area is located between the heating area and the feeding area;

[0027] The feeding track is circular, and all the receiving cavities are spaced apart along the extension trajectory of the feeding track. The feeding track can drive the rubber sleeve on it to turn in the unloading area so that the rubber sleeve can disengage from the receiving cavity.

[0028] In some embodiments, the frame includes a feeding track located at the bottom of the feeding area, the feeding track being used to receive the rubber sleeve detached from the feeding area and to transport the rubber sleeve along its own extending trajectory.

[0029] In some embodiments, the frame further includes a loading area, and the heating area is located between the assembly area and the loading area;

[0030] The frame includes a feeding track located in the feeding area, the feeding track being used to transport the plurality of rubber sleeves one by one to the receiving cavity on the feeding track.

[0031] In some embodiments, the loading track is inclined relative to the feeding track and the inclination angle is adjustable.

[0032] Thirdly, this application provides an automatic roller coating system, comprising:

[0033] The feeding equipment described above;

[0034] A support mechanism for placing a roller such that the roller is coaxial with a rubber sleeve located in the assembly area in a second direction;

[0035] The pushing mechanism is configured to push the roller into the rubber sleeve along the second direction.

[0036] The automatic roller coating system according to the third aspect of this application has at least the following beneficial effects:

[0037] The automatic roller sleeve system of this application, through the coordinated arrangement of feeding equipment, support mechanism, and pushing mechanism, not only safely and stably expands multiple sleeves at once through physical heating and heat conduction using a heating medium, without causing structural damage to the sleeves and providing a structural foundation for roller sleeve application, but also accurately sleeves the rollers, effectively improving the production efficiency of roller sleeve application. Furthermore, the equipment cost is low, and the entire process requires no manual intervention, achieving fully automatic roller sleeve application, which is conducive to large-scale production.

[0038] In some embodiments, the support mechanism includes at least two support blocks spaced apart along the second direction, each support block having a contoured notch for engaging with the peripheral wall of the roller, and all the contoured notches being coaxially arranged along the second direction.

[0039] In some embodiments, the support mechanism includes a plurality of second drive members corresponding to and connected to the support block, the second drive members being configured to drive the support block to move up and down relative to the frame.

[0040] In some embodiments, the pushing mechanism includes a first driving member and a pushing member, the first driving member being configured to push the roller to move via the pushing member, the pushing member extending along the second direction with a limiting sleeve, the limiting sleeve being fitted onto the end of the roller away from the assembly area when the pushing member pushes the roller.

[0041] In some embodiments, the automatic roller coating system further includes a plurality of position detectors spaced apart along the second direction, all of which are used to detect the position of the pusher in the second direction.

[0042] In some embodiments, the frame is provided with a nozzle at the assembly area, the nozzle being configured to spray a lubricating medium onto the outer wall of the roller before the roller is fitted into the rubber sleeve.

[0043] In some embodiments, the feeding device has at least two, and two frames on two adjacent feeding devices are spaced apart along the second direction with adjustable spacing.

[0044] In some embodiments, the automatic roller coating system further includes a base, the base having an adjusting guide rail extending along the second direction, and the frame being slidably mounted on the adjusting guide rail.

[0045] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0046] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0047] Figure 1 This is a schematic diagram of the expansion sleeve device according to an embodiment of this application.

[0048] Figure 2 This is a schematic diagram of the feeding device according to an embodiment of this application.

[0049] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0050] Figure 4 This is another structural schematic diagram of the feeding device according to an embodiment of this application.

[0051] Figure 5 This is a schematic diagram of the automatic roller coating system according to an embodiment of this application.

[0052] Figure 6 for Figure 5 A magnified view of a section at point B.

[0053] Figure 7 This is a partial structural schematic diagram of the automatic roller coating system according to an embodiment of this application.

[0054] Figure 8 This is a schematic diagram of the cooperative structure of the support mechanism, the pushing mechanism, and the roller in an embodiment of this application.

[0055] Figure 9 for Figure 8 A magnified view of a section at point C.

[0056] Figure 10 This is a schematic diagram of the support mechanism in an embodiment of this application.

[0057] Explanation of reference numerals in the attached drawings: Feeding track 100; Receiving cavity 110; Heating mechanism 200; Heating pipe 210; Heat transfer pipe 220; Heat return pipe 230; Frame 300; First limiting plate 310; Second limiting plate 320; Mounting hole 330; Unloading track 340; Loading track 350; Fixed seat 360; Hinge seat 370; Third driving component 380; Fourth driving component 390; Support mechanism 400; Support block 410; Contouring notch 411; Second driving component 420; Guide seat 430; Pushing mechanism 500; First driving component 510; Pushing component 520; Limiting sleeve 521; Nozzle 600; Base 700; Adjusting guide rail 710; Roller 800; Sprocket 810; Rubber sleeve 900; Heating zone R1; Assembly zone R2; Unloading zone R3; Loading zone R4; First direction X; Second direction Y; Third direction Z. Detailed Implementation

[0058] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0059] In logistics conveying equipment, in order to avoid direct contact between the rollers and the material pallets and to prevent the friction between the rollers and the material pallets from generating metal dust, it is necessary to coat the rollers with rubber. That is, to put a rubber sleeve on the surface of the rollers to achieve indirect contact between the rollers and the material pallets, while also increasing the friction between the rollers and the logistics pallets.

[0060] When fitting the roller into the rubber sleeve, the sleeve needs to be pre-expanded to ensure the roller can be smoothly fitted inside. In related technologies, a spreading structure is generally used to directly apply force to the rubber sleeve to achieve this. However, this method is difficult to control the force applied to the sleeve, easily causing structural damage and rendering the sleeve unusable, thus affecting the production efficiency of roller sleeve fitting. Furthermore, this method is also difficult to spread a batch of rubber sleeves at once, which also reduces the production efficiency of roller sleeve fitting.

[0061] Based on the above issues, see Figure 1 , Figure 2 and Figure 3 This application provides an expansion sleeve device, which includes a feeding track 100 and a heating mechanism 200.

[0062] The feeding track 100 is provided with multiple receiving cavities 110 spaced apart along the first direction X for receiving the rubber sleeve 900. The heating mechanism 200 includes multiple heating pipes 210 spaced apart along the first direction X. Adjacent heating pipes 210 are connected through at least one receiving cavity 110 to communicate with the rubber sleeve 900 inside the receiving cavity 110, forming a heating channel for the flow of the heating medium. All heating channels are connected, and the heating medium is configured to heat the rubber sleeve 900.

[0063] It should be noted that the first direction X can be a straight line or a curve, meaning the feeding track 100 can extend in a straight line or a curve, without any specific limitation. In the feeding track 100 of this application, one receiving cavity 110 corresponds to one rubber sleeve 900. The receiving cavity 110 can be an upward-opening arc-shaped groove to adapt to the shape of the rubber sleeve 900. In this application, the rubber sleeves 900 can be fed by a robotic arm or other feeding module to place multiple rubber sleeves 900 into the corresponding receiving cavities 110.

[0064] Understandably, when all the receiving cavities 110 on the feeding track 100 are filled with rubber sleeves 900, along the first direction X, two adjacent heating pipe sections 210 are connected through at least one rubber sleeve 900, thus forming a heating channel for the flow of heating medium. All the heating channels are connected sequentially along the first direction X, forming a meandering heating channel trajectory.

[0065] When the diameter of the heating pipe 210 matches the diameter of the rubber sleeve 900, two adjacent sections of the heating pipe 210 are connected through one rubber sleeve 900. When the diameter of the heating pipe 210 is greater than or equal to twice the diameter of the rubber sleeve 900, two adjacent sections of the heating pipe 210 are connected through two or more rubber sleeves 900. See also Figure 1 and Figure 2 This application uses the example of two adjacent heating pipes 210 connected by a rubber sleeve 900 to form a heating channel.

[0066] It should also be noted that the heating mechanism 200 can deliver a heating medium into the heating channel, which can be hot air with a high temperature. During the flow of the heating medium through the entire heating channel, the heating medium flows along the inner wall surface of the sleeve 900, heating the sleeve 900 through heat conduction. Because the heating medium can completely cover the inner wall surface of the sleeve 900, the heating of all parts of the sleeve 900 is more uniform, allowing the sleeve 900 to expand radially under stable heating, increasing its inner diameter. Thus, the sleeve 900 can be safely and stably opened through physical heating and heat conduction, and multiple sleeves 900 can be opened at once.

[0067] Understandably, the inner diameter of the rubber sleeve 900 increases relative to its initial inner diameter after thermal expansion. At this point, the roller 800 can be inserted into the rubber sleeve 900 or fitted onto the roller 800 using appropriate fitting equipment. It is easy to understand that during the process of inserting the roller 800 into the rubber sleeve 900 or fitting the rubber sleeve 900 onto the roller 800, and after the assembly of the roller 800 and the rubber sleeve 900 is completed, the rubber sleeve 900 itself will continuously dissipate heat and cool down, that is, the rubber sleeve 900 will shrink back to its initial inner diameter due to cooling, thus tightly fitting onto the roller 800. This increases the bonding force between the rubber sleeve 900 and the roller 800, ensuring a tight contact and preventing the rubber sleeve 900 from loosening or slipping and falling off, thereby improving the stability of the fit between the rubber sleeve 900 and the roller 800.

[0068] It is easy to understand that the expansion sleeve device in this embodiment of the application, through the cooperation of the feeding track 100 and the heating mechanism 200, connects two adjacent heating pipes 210 on the heating mechanism 200 with the receiving cavity 110 on the feeding track 100, so that the two adjacent heating pipes 210 and the rubber sleeve 900 in the receiving cavity 110 are connected to form a heating channel for the flow of heating medium, and all heating channels are connected, so that multiple rubber sleeves 900 can be safely and stably expanded at one time by the heating medium through physical heating and heat conduction, without causing structural damage to the rubber sleeves, effectively improving the production efficiency of roller rubber sleeves.

[0069] See also some embodiments of this application. Figure 1 and Figure 2 The heating mechanism 200 also includes a heat transfer pipe 220, a heat return pipe 230, and a heater (not shown in the figure) for outputting the heating medium. The heating pipe 210 at the nearest end along the first direction X is connected to the heater through the heat transfer pipe 220, and the heating pipe 210 at the farthest end along the first direction X is connected to the heater through the heat return pipe 230. All heating channels are connected in series along the first direction X.

[0070] Specifically, the heater is an electric hot air blower, and both the heat transfer pipe 220 and the heat return pipe 230 are corrugated pipes to enhance the flexibility of their assembly. The hot air outlet of the electric hot air blower is connected to the heating pipe 210 at the closest end in the first direction X through the heat transfer pipe 220, and the return air outlet of the electric hot air blower is connected to the heating pipe 210 at the farthest end in the first direction X through the heat return pipe 230.

[0071] Thus, the heater, heat transfer pipe 220, all heating channels, and regenerative pipe 230 form a circulation channel for the heating medium to circulate. This not only allows for continuous heating of multiple rubber sleeves 900, ensuring they expand evenly within a short time, effectively improving the production efficiency of roller rubber sleeves, but also enables the heater to automatically control the temperature of its output heating medium, flexibly controlling the expansion force of the rubber sleeves 900. This ensures stable and uniform expansion of the rubber sleeves 900, preventing them from overheating and causing damage.

[0072] Meanwhile, by sequentially connecting the heater, heat transfer pipe 220, all heating channels, and regenerator pipe 230, the heating medium can be recovered, thereby improving the corresponding energy utilization efficiency.

[0073] See also Figure 2 , Figure 3 and Figure 4 This application embodiment also provides a feeding device, which includes a frame 300 and the aforementioned expansion sleeve device.

[0074] The frame 300 is provided with a heating zone R1 and an assembly zone R2 arranged along the first direction X, and all the heating pipes 210 are located on the frame 300 and distributed on the side of the heating zone R1.

[0075] The feeding track 100 is configured to move along the first direction X to drive the rubber sleeves 900 thereon through the heating zone R1 and the assembly zone R2 one by one, and to make the rubber sleeves 900 connect with the heating pipe 210 in the heating zone R1.

[0076] Specifically, the feeding track 100 is a linear track. The feeding track 100 can be driven to move along the first direction X by the fourth drive member 390, which can be, but is not limited to, a sprocket and chain mechanism or a synchronous belt mechanism. All the heating pipes 210 are fixed to the frame 300.

[0077] Understandably, see Figure 2 Taking the rubber sleeve 900 at the foremost end of the feeding track 100 as an example, when the feeding track 100 moves along the first direction X, the rubber sleeve 900 moves synchronously and maintains a connected state (unsealed connection) with the two adjacent heating pipes 210 at the corresponding positions. In this way, the rubber sleeve 900 is continuously heated by the heating medium during its movement in the heating zone R1. When the feeding track 100 moves the rubber sleeve 900 from the heating zone R1 to the assembly zone R2, the feeding track 100 stops moving. At this time, the rubber sleeve 900 has been heated and expanded to a state where the roller 800 can be smoothly inserted. At this time, the roller 800 can be inserted into the rubber sleeve 900 or the rubber sleeve 900 can be fitted onto the roller 800 through the corresponding rubber sleeve fitting equipment, so as to achieve a stable assembly of the roller 800 and the rubber sleeve 900.

[0078] The thermal expansion process of the remaining rubber sleeves 900 on the feeding track 100 and the assembly process with the roller 800 are the same as those of the aforementioned frontmost rubber sleeve 900, and will not be described again here.

[0079] It is easy to understand that this application, by having the feeding track 100 drive the rubber sleeves 900 on it to pass one by one through the heating zone R1 and the assembly zone R2, ensures that each rubber sleeve 900 is continuously heated and expanded in the heating zone R1. This allows the rubber sleeve 900 moving to the assembly zone R2 to expand to a state where the roller 800 can be smoothly inserted, facilitating the assembly of the roller 800 and the rubber sleeve 900. Furthermore, by conveying the heated and expanded rubber sleeves 900 one by one to the assembly zone R2, the feeding track 100 also improves the continuity of the assembly of the roller 800 and the rubber sleeve 900, completing the assembly of batches of rollers 800 and rubber sleeves 900 in a short time, further improving the production efficiency of the roller sleeve assembly.

[0080] Furthermore, see also Figure 2 , Figure 3 and Figure 4 The rubber sleeve 900 has a first heating state and a second heating state. When the rubber sleeve 900 is in the first heating state, it is locked in the heating zone R1 by the frame 300 to seal and communicate with the heating pipe 210. When the rubber sleeve 900 is in the second heating state, it is released by the frame 300 so that it can move along the first direction X under the drive of the feeding track 100.

[0081] It is easy to understand that when the feeding track 100 remains stationary, the rubber sleeves 900 on the feeding track 100 are locked in the heating zone R1 by the frame 300 and kept in a sealed connection with the heating pipe 210. At this time, all heating channels are sealed and connected, and all rubber sleeves 900 are in the first heating state. The heating medium is connected along all heating channels to heat all rubber sleeves 900, ensuring the thermal expansion efficiency of all rubber sleeves 900.

[0082] When the rubber sleeve 900 on the feeding track 100 is released by the frame 300, the feeding track 100 can drive the rubber sleeve 900 on it to move along the first direction. The rubber sleeve 900 and the heating pipe 210 are not completely sealed and connected, that is, all heating channels are not completely sealed and connected, and all rubber sleeves 900 are in the second heating state. In this way, it is ensured that the feeding track 100 can transport the rubber sleeves 900 on it one by one to the assembly area R2 for assembly.

[0083] It should be noted that when all the rubber sleeves 900 are in the first heating state, as the heating medium flows sequentially along the heating channel, the temperature of the heating medium continuously decreases. That is, the rubber sleeves 900 near the feeding track 100 have a better thermal expansion effect, while the rubber sleeves 900 far from the feeding track 100 have a weaker thermal expansion effect.

[0084] Based on this, this application allows the feeding track 100 to be movable, and the sleeve 900 to have a first heating state in which it is locked in the heating zone R1 by the frame 300 and maintains a completely sealed communication with the heating pipe 210, and a second heating state in which it is released by the frame 300 and maintains a partially sealed communication with the heating pipe 210. On the one hand, this avoids the structure of the frame 300 from interfering with the movement of the feeding track 100, so that the feeding track 100 can transport the sleeve 900 to the assembly zone R2 when the sleeve 900 is in the second heating state. On the other hand, it can make the heating time of the rubber sleeve 900 at the near end of the feeding track 100 slightly less than that of the rubber sleeve 900 at the far end of the feeding track 100, so that the heating effect of all the rubber sleeves 900 on the feeding track 100 is relatively uniform. This effectively reduces the probability of one or more rubber sleeves 900 on the feeding track 100 being overheated and expanding and being damaged, or one or more rubber sleeves 900 being poorly heated and having a small expansion force. This ensures that the rubber sleeves 900 conveyed by the feeding track 100 to the assembly area R2 can be smoothly assembled onto the roller 800.

[0085] Furthermore, see also Figure 2 , Figure 3 and Figure 4 The frame 300 includes a first limiting plate 310 and a second limiting plate 320 disposed opposite to each other, defining a heating zone R1 between the first limiting plate 310 and the second limiting plate 320. The first limiting plate 310 is configured to abut the rubber sleeve 900 against the second limiting plate 320, so that the rubber sleeve 900 is in a first heating state. The first limiting plate 310 is also rotatable relative to the feed track 100 to release the rubber sleeve 900, so that the rubber sleeve 900 is in a second heating state.

[0086] Specifically, the frame 300 also includes a fixed base 360 ​​and a third drive member 380. A first limiting plate 310 is rotatably mounted on the fixed base 360 ​​via a hinged base 370, and a second limiting plate 320 is fixedly mounted on the fixed base 360. The third drive member 380 is used to drive the first limiting plate 310 to rotate relative to the fixed base 360, thereby switching between the first and second heating states of the rubber sleeve 900. The third drive member 380 can be configured as a linear cylinder, with its mounting end and driving end hinged to the fixed base 360 ​​and the first limiting plate 310, respectively.

[0087] In addition, both the first limiting plate 310 and the second limiting plate 320 are provided with a plurality of heating pipes 210 along the first direction X. When the rubber sleeve 900 is located in the heating zone R1, the heating pipes 210 on the first limiting plate 310 are connected to the heating pipes 210 on the second limiting plate 320 through the rubber sleeve 900.

[0088] It is easy to understand that when the feeding track 100 is stationary, the first limiting plate 310 and the second limiting plate 320 are parallel to each other, and the rubber sleeve 900 on the feeding track 100 is perpendicular to either the first limiting plate 310 or the second limiting plate 320. Under the driving force of the third driving member 380, the first limiting plate 310 presses the rubber sleeve 900 against the second limiting plate 320. At this time, the rubber sleeve 900 is locked between the first limiting plate 310 and the second limiting plate 320, and the two ends of the rubber sleeve 900 are respectively sealed to the heating pipe 210 on the first limiting plate 310 and the heating pipe 210 on the second limiting plate 320, maintaining the first heating state.

[0089] After the foremost rubber sleeve 900 on the feeding track 100 has finished heating, the third driving component 380 drives the first limiting plate 310 to rotate relative to the frame 300 by a certain angle, causing the first limiting plate 310 to release its pressure on the rubber sleeve 900. At this time, all the rubber sleeves 900 on the feeding track 100 are released, and the two ends of the rubber sleeves 900 are separated from the heating pipes 210 on the first limiting plate 310 and the second limiting plate 320, respectively, maintaining a second heating state where they are not completely sealed and connected to the heating pipes 210 on the first limiting plate 310 and the second limiting plate 320. At this time, the feeding track 100 moves a certain distance, thereby conveying the foremost rubber sleeve 900 on the feeding track 100 to the assembly area R2. It can be understood that during the movement of the feeding track 100, the remaining rubber sleeves 900 on the feeding track 100 are still located in the heating area R1 and maintain the second heating state.

[0090] When the foremost rubber sleeve 900 on the feeding track 100 moves to the assembly area R2, the feeding track 100 stops moving, and the third driving component 380 drives the first limiting plate 310 to reset, so that the remaining rubber sleeves 900 are reset to the first heating state. During the time interval between the rubber sleeves 900 and the roller 800 in the assembly area R2, the remaining rubber sleeves 900 on the feeding track 100 are heated and expanded.

[0091] Understandably, through the above-described configuration, this application not only ensures that the rubber sleeve 900 is in a first heating state with a sealed connection to the corresponding heating pipe 210, preventing leakage of the heating medium from affecting the heating of the rubber sleeve 900, but also, by utilizing the function of the first limiting plate 310 rotating relative to the second limiting plate 320, effectively prevents the first limiting plate 310 and the second limiting plate 320 from interfering with the movement of the feeding track 100, while simultaneously ensuring that the rubber sleeve 900 is in a second heating state where it can move, thus maintaining heating of the rubber sleeve 900 even during the movement of the feeding track 100. In this way, through the periodic stillness and movement of the feeding track 100, the rhythmic heating of all the rubber sleeves 900 on the feeding track 100 is achieved, allowing the rubber sleeves 900 to continuously heat and expand stably and uniformly, thereby improving the assembly quality of the rubber sleeve 900 and the roller 800, and also effectively increasing the assembly speed of the rubber sleeve 900 and the roller 800.

[0092] Of course, in another embodiment, when the feeding track 100 moves the rubber sleeve 900 along the first direction X, that is, when the rubber sleeve 900 is in the second heating state, the heater can be in a stopped state, that is, the heater does not supply heating medium into the heating channel. At this time, the rubber sleeve 900 only expands under the residual heat in the heating channel. In this way, a large amount of heat is avoided from being wasted because the rubber sleeve 900 is not completely sealed to the heating pipe 210, thus improving energy utilization efficiency.

[0093] Furthermore, see also Figure 2 and Figure 3 The side walls of the first limiting plate 310 and the second limiting plate 320 are both provided with mounting holes 330 for connecting the heating pipe 210. When the rubber sleeve 900 is in the first heating state, the two ports of the rubber sleeve 900 respectively cover the mounting holes 330 on the first limiting plate 310 and the second limiting plate 320.

[0094] Specifically, the inner diameter of the rubber sleeve 900 (the initial pipe diameter before heating) is larger than the outer diameter of the mounting hole 330, so that the two ports of the rubber sleeve 900 can completely cover the mounting hole 330 on the first limiting plate 310 and the mounting hole 330 on the second limiting plate 320.

[0095] Understandably, when the feeding track 100 is stationary, the first limiting plate 310, under the driving force of the third driving member 380, presses the rubber sleeve 900 against the second limiting plate 320. At this time, the two ends of the rubber sleeve 900 are respectively pressed against the surfaces of the first limiting plate 310 and the second limiting plate 320, and respectively cover the mounting holes 330 on the first limiting plate 310 and the second limiting plate 320. This further ensures a sealed connection between the rubber sleeve 900 and the heating pipes 210 at both ends, preventing heat loss and increasing the rate of thermal expansion of the rubber sleeve 900.

[0096] In some embodiments of this application, see Figure 4 , Figure 5 and Figure 6 The frame 300 is also provided with a feeding area R3, and the assembly area R2 is located between the heating area R1 and the feeding area R3. The feeding track 100 is circular, and all the receiving cavities 110 are spaced apart along the extension trajectory of the feeding track 100. The feeding track 100 can drive the rubber sleeve 900 on it to turn in the feeding area R3 so that the rubber sleeve 900 is disengaged from the receiving cavity 110.

[0097] Specifically, the feeding track 100 is driven to move in a ring by a fourth drive member 390, which is configured as a sprocket and chain mechanism. The receiving cavity 110 has an upward-opening groove structure.

[0098] Understandably, when the feeding track 100 transports the corresponding rubber sleeve 900 to the assembly area R2, the rubber sleeve 900 is in a state of thermal expansion. A robotic arm or other roller-mounting equipment can then be used to insert the roller 800 to be mounted onto the rubber sleeve 900 along its axis. During this process, the rubber sleeve 900 will cool and shrink back to its initial inner diameter, thus tightly fitting the rubber sleeve 900 onto the roller 800. This ensures a tight fit between the rubber sleeve 900 and the roller 800, achieving integrated assembly.

[0099] Then, the feeding track 100 drives the rubber sleeve 900 with the roller 800 inserted to move to the unloading area R3 and turn in the unloading area R3, so that the rubber sleeve 900 with the roller 800 inserted can disengage from the receiving cavity 110 during the turning process, and the unloading is completed.

[0100] Obviously, by setting the feeding track 100 into a ring shape, this application enables the feeding track 100 to move along the ring, thereby driving the rubber sleeve 900 on it to sequentially enter the heating zone R1 for heating, enter the assembly zone R2 for assembly with the roller 800, and turn the rubber sleeve 900 assembled with the roller 800 to unload in the unloading zone R3. Without the need for additional mechanical equipment, the heating expansion, assembly and unloading of the rubber sleeve 900 can be completed automatically, which effectively improves the efficiency of roller sleeve rubber and saves the corresponding structural equipment costs.

[0101] Furthermore, see also Figure 5 As shown in the figure, the frame 300 includes a discharge track 340 located at the bottom of the discharge area R3, the discharge track 340 being used to receive the rubber sleeve 900 detached from the discharge area R3 and to transport the rubber sleeve 900 along its own extending trajectory.

[0102] Specifically, the feeding track 340 is constructed as a roller conveyor belt, which is inclined at a certain angle relative to the frame 300. In this way, the roller conveyor belt can effectively receive the rubber sleeve 900 equipped with roller 800 that falls from the feeding area R3, and can transport the rubber sleeve 900 equipped with roller 800 to the next processing station, thereby improving the versatility and compatibility of the entire feeding equipment.

[0103] Of course, the feeding track 340 can also be constructed as a conveyor belt, and there are no specific restrictions.

[0104] See also some embodiments of this application. Figure 2 and Figure 4 The frame 300 also has a loading area R4, and a heating area R1 is located between the assembly area R2 and the loading area R4. The frame 300 includes a loading track 350 located in the loading area R4, which is used to transport multiple rubber sleeves 900 one by one to the receiving cavity 110 on the feeding track 100.

[0105] Specifically, the loading track 350 is inclined at a certain angle relative to the feeding track 100. When a batch of rubber sleeves 900 needs to be loaded onto the feeding track 100, the robotic arm can arrange the batch of rubber sleeves 900 in an orderly manner on the loading track 350. At the same time, the feeding track 100 moves along the first direction X. In this way, each receiving cavity 110 on the feeding track 100 can be sequentially connected to the discharge port of the loading track 350, and each rubber sleeve 900 on the loading track 350 can roll from the discharge port into the corresponding receiving cavity 110 on the corresponding feeding track 100 under its own gravity.

[0106] In this way, a batch of rubber sleeves 900 can be fed onto the feeding track 100 in an orderly manner, improving the automation level of the entire feeding equipment.

[0107] Furthermore, the tilt angle of the loading track 350 relative to the feeding track 100 can be adjusted. Specifically, the feeding track 100 is provided with an arc-shaped groove, and the loading track 350 is provided with a locking block that cooperates with the arc-shaped groove. The locking block can be locked and fixed in the arc-shaped groove, and can also be released from the arc-shaped groove to slide along the arc-shaped groove.

[0108] This allows on-site personnel to adjust the tilt angle of the loading track 350 relative to the feeding track 100 according to the actual moving speed of the feeding track 100, so that the sliding speed of each rubber sleeve 900 on the loading track 350 can be matched with the moving speed of the feeding track 100, ensuring that each rubber sleeve 900 slides into the corresponding receiving cavity 110 in an orderly and accurate manner.

[0109] In addition, see Figure 6 , Figure 7 and Figure 8This application also provides an automatic roller coating system, which includes a support mechanism 400, a pushing mechanism 500, and the aforementioned feeding equipment.

[0110] The support mechanism 400 is used to place the roller 800 so that the roller 800 and the rubber sleeve 900 located in the assembly area R2 are coaxial along the second direction Y. The pushing mechanism 500 is configured to push the roller 800 into the rubber sleeve 900 along the second direction Y.

[0111] It should be noted that in this embodiment, both the roller 800 and the rubber sleeve 900 are cylindrical, and the axial direction of the roller 800 and the rubber sleeve 900 is the second direction Y. It can be understood that the roller 800 is a solid structure, while the rubber sleeve 900 is a hollow structure.

[0112] When automatically applying rubber to roller 800, the automatic roller sleeve system of this application can place roller 800 on support mechanism 400 by a robot arm, so that roller 800 and sleeve 900 in assembly area R2 are coaxial along the second direction Y, that is, the central axis of roller 800 and the central axis of sleeve 900 in assembly area R2 are on the same straight line.

[0113] Then, the pushing mechanism 500 can push the roller 800 along the second direction Y to insert it into the rubber sleeve 900 in the assembly area R2, thereby achieving the rubber sleeve on the roller 800 and completing the insertion and mating of the roller 800 and the rubber sleeve 900.

[0114] It is easy to understand that the automatic roller sleeve system of this application embodiment, through the coordinated arrangement of the feeding device, the support mechanism 400 and the pushing mechanism 500, can not only safely and stably open multiple sleeves 900 at one time through physical heating and heat conduction by the heating medium, without causing structural damage to the sleeves, thus providing a structural basis for implementing the roller sleeve action, but also can accurately sleeve the sleeves 900 onto the rollers 800, effectively improving the production efficiency of roller sleeve, and the equipment cost is low. The whole process does not require manual intervention and realizes the roller sleeve action fully automatically, which is conducive to large-scale production.

[0115] In some embodiments of this application, see Figure 7 , Figure 8 and Figure 9 The support mechanism 400 includes at least two support blocks 410 spaced apart along the second direction Y. Each support block 410 has a contour notch 411 for cooperating with the peripheral wall of the roller 800. All contour notches 411 are coaxially arranged along the second direction Y.

[0116] Specifically, the contour notch 411 is an arc-shaped groove to fit the arc-shaped peripheral wall of the roller 800. Since all the contour notches 411 are coaxially arranged along the second direction Y, when applying rubber to the roller 800, the roller 800 to be fitted can be horizontally placed at the contour notch 411 of the support block 410 by a robotic arm, so that multiple positions of the roller 800 along its own axial direction correspond to and cooperate with multiple contour notches 411 one by one. In this way, all the support blocks 410 achieve stable support for the roller 800.

[0117] Obviously, the arrangement of multiple support blocks 410 and corresponding contour notches 411 enables the roller 800 to remain coaxial with the rubber sleeve 900 before being inserted into it, allowing the pushing mechanism 500 to accurately insert the roller 800 into the rubber sleeve 900 in the assembly area R2, effectively improving the production efficiency of rubber sleeve application on the roller 800.

[0118] Of course, a scratch-resistant layer can also be applied to the contoured notch 411 of the support block 410. The scratch-resistant layer can be a rubber layer to reduce the risk of the roller 800 being scratched due to contact and friction with the support block 410, and further ensure the structural stability of the roller 800.

[0119] Further, see Figure 8 , Figure 9 and Figure 10 The support mechanism 400 includes a plurality of second drive members 420 corresponding to and connected to the support block 410. The second drive members 420 are configured to drive the support block 410 to rise and fall relative to the frame 300.

[0120] Specifically, the support mechanism 400 also includes multiple guide seats 430, each guide seat 430 having a guide groove for the corresponding support block 410 to move up and down. The extension direction of the guide groove is defined as the third direction Z, which is perpendicular to the second direction Y. The output end of the second drive unit 420 is connected to the corresponding support block 410 to drive the support block 410 to move up and down along the guide groove. The second drive unit 420 can be a cylinder or a motor combined with a ball screw mechanism.

[0121] It should be noted that different rollers 800 have different specifications. Some rollers 800 have one or more sprockets 810 integrally formed near one end during the manufacturing process. The outer diameter of the sprocket 810 is larger than the outer diameter of the roller 800. When the roller 800 is installed in the corresponding logistics conveying equipment, the sprocket 810 at the end of the roller 800 is used to cooperate with the drive chain on the logistics conveying equipment to realize the function of rotating and conveying logistics.

[0122] Regarding the roller 800 with sprocket 810, since the outer diameter of sprocket 810 is larger than the outer diameter of roller 800, when the pushing mechanism 500 pushes roller 800 into the rubber sleeve 900 along the second direction Y, the sprocket 810 at the end of roller 800 will be stopped and interfered by the support block 410 on the support mechanism 400, causing the pushing mechanism 500 to be unable to push roller 800.

[0123] Based on this, in some embodiments of this application, see [reference] Figure 7 , Figure 8 and 9 The pushing mechanism 500 includes a first driving member 510 and a pushing member 520. The first driving member 510 is configured to push the roller 800 to move via the pushing member 520. The pushing member 520 extends along the second direction Y with a limiting sleeve 521. The limiting sleeve 521 is used to be fitted on the end of the roller 800 away from the assembly area R2 when the pushing member 520 pushes the roller 800.

[0124] It is understandable that the drive end of the first drive component 510 is connected to the pusher 520, and the first drive component 510 can be a cylinder.

[0125] See Figure 7 , Figure 8 and Figure 9 Along a left-to-right direction, three support blocks 410 are spaced apart, designated as the first support block, the second support block, and the third support block, respectively. The positions of the first support block, the second support block, and the third support block in the second direction Y are respectively designated as the first preset position, the second preset position, and the third preset position. Furthermore, see... Figure 5 In the automatic roller coating system of this application, there are at least two feeding devices, with adjacent feeding devices spaced apart along the second direction Y and the spacing is adjustable. That is, the frame 300 has two assembly areas R2 spaced apart along the second direction Y.

[0126] See Figure 8 and Figure 9 Before the first driving member 510 drives the pusher 520 to move the roller 800, the left end of the roller 800 is the end closest to the sprocket 810. At this time, the part of the roller 800 near the left end, the part near the middle, and the part near the right end are supported by the first support block, the second support block, and the third support block, respectively, to maintain a horizontal state and remain coaxial with the rubber sleeve 900 on the assembly area R2.

[0127] When the first driving member 510 drives the pushing member 520 to move the roller 800 from left to right towards the right-hand rubber sleeve 900, the limiting sleeve 521 on the pushing member 520 will first be fitted onto the left end of the roller 800. At this time, the position of the pushing member 520 is close to the first preset position of the aforementioned first support block. Then, the second driving member 420 drives the corresponding first support block to descend, causing the first support block to disengage from supporting the part of the roller 800 near the left end. It can be understood that at this time, the roller 800 remains horizontal under the support of the limiting sleeve 521 on the pushing member 520, the second support block, and the third support block. In this way, the descending action of the first support block effectively avoids the sprocket 810 on the roller 800, preventing the first support block from stopping the sprocket 810, and allowing the first driving member 510 to drive the pushing member 520 to move the roller 800.

[0128] Similarly, when the pusher 520 moves to a position close to the second preset position of the aforementioned second support block, the corresponding second drive 420 drives the second support block to descend, causing the second support block to disengage from the support of the roller 800, providing clearance for the sprocket 810 on the roller 800, and allowing the pusher 520 to push the roller 800 to continue moving to the right. It should be noted that at this time, the roller 800 is already within the rubber sleeve 900 on an assembly area R2 on the right. It can be understood that the roller 800 remains horizontal at this time, supported by the limiting sleeve 521, the third support block, and the rubber sleeve 900 on the assembly area R2.

[0129] Similarly, when the pusher 520 moves to a position close to the third preset position of the aforementioned third support block, the corresponding second drive 420 drives the third support block to descend, causing the third support block to disengage from the support of the roller 800, providing clearance for the sprocket 810 on the roller 800, and allowing the pusher 520 to push the roller 800 to continue moving to the right. It should be noted that at this time, the roller 800 is already inside one or two rubber sleeves 900 inserted on the right. It can be understood that at this time, the roller 800 remains horizontal under the support of the limiting sleeve 521 and one or two rubber sleeves 900.

[0130] Finally, the first driving member 510 continues to drive the pushing member 520 to move the roller 800 a short distance, so that the right end of the roller 800 extends beyond the rightmost rubber sleeve 900. At this point, the rubber sleeve on the roller 800 is completed. It can be understood that at least one rubber sleeve 900 is fitted onto the roller 800 after the rubber sleeve is completed.

[0131] Furthermore, it should be noted that after the rubber coating of the roller 800 is completed, the first driving member 510 can drive the pushing member 520 to move in the opposite direction to the initial position, causing the limiting sleeve 521 on the pushing member 520 to slide away from the end of the roller 800 and achieve reset. During the reset process of the pushing member 520, the first support block, the second support block, and the third support block can also rise and reset to the initial position under the driving action of the corresponding second driving member, preparing for the rubber coating of the next roller 800 and providing support for the next roller 800.

[0132] As explained above, this application, by providing a second driving component 420 capable of driving the support block 410 to rise and fall, and by providing a limiting sleeve 521 on the pushing component 520 that can be fitted onto one end of the roller 800, ensures that the corresponding support block 410 can descend in time during the movement of the roller 800 toward the rubber sleeve 900 on the assembly area R2, thus avoiding the sprocket 810 on the roller 800. Furthermore, even after the corresponding support block 410 disengages from supporting the roller 800, the limiting sleeve 521 and the remaining support blocks 410 can still provide support for multiple positions of the roller 800, ensuring that the roller 800 remains coaxial and horizontal with the rubber sleeve 900, preventing the roller 800 from falling, and ensuring that the roller 800 can be accurately inserted into the rubber sleeve 900 along its own axis, thereby improving the accuracy and efficiency of the rubber sleeve application on the roller 800.

[0133] Furthermore, the automatic roller coating system also includes multiple position detectors spaced apart along the second direction Y, all of which are used to detect the position of the pusher 520 in the second direction Y.

[0134] Specifically, in one embodiment, four position detectors are provided along the left-to-right direction, namely, an initial position detector, a first position detector, a second position detector, and a third position detector. Based on the above description, it can be understood that the initial position detector is mounted on the frame 300 via a detector bracket. The initial position detector is used to detect the position of the pusher 520, so that the pusher 520 is in the initial position before the pusher roller 800 moves. The first position detector, the second position detector, and the third position detector are mounted on the corresponding guide seats 430 via their respective detector brackets. When the first drive member 510 drives the pusher 520 to push the roller 800 from left to right to move closer to the rubber sleeve 900 at the right assembly area R2, when the position of the pusher 520 approaches the first preset position of the aforementioned first support block, the first position detector detects the position of the pusher 520 at this time, and then transmits the position signal to the corresponding second drive member 420. The second drive member 420 then drives the first support block to descend, thereby causing the first support block to disengage from the support of the roller 800 and avoid the sprocket 810 on the roller 800.

[0135] Similarly, the operating principles of the second and third position detectors are similar to those of the first position detector, and will not be repeated here. When the roller 800 completes the gluing process, the pusher 520 returns to its initial position, relying on the initial position detector, awaiting the next gluing task. Of course, the automatic roller gluing system of this application may also include a controller, with the first drive unit 510, all position detectors, and all second drive units 420 electrically connected to the controller. The controller can be a microcontroller or a computer based on PLC program control.

[0136] It is easy to understand that by setting multiple position detectors at intervals along the second direction Y, the position detectors can detect the position of the pusher 520 in a timely manner during the process of the first drive member 510 driving the pusher 520 to move the roller 800 from left to right and approach the rubber sleeve 900 of the right assembly area R2. This allows the support block 410 at the corresponding position to descend and disengage from the roller 800 in a timely manner, and to avoid the sprocket 810 of the roller 800. This ensures the continuity of the movement of the roller 800 driven by the first drive member 510 and the pusher 520, and also allows the pusher 520 to accurately return to the initial position after the rubber sleeve task is completed, further improving the rubber sleeve accuracy and rubber sleeve efficiency of the roller 800.

[0137] In some embodiments of this application, see Figure 6 The frame 300 is equipped with a nozzle 600 at the assembly area R2. The nozzle 600 is configured to spray a lubricating medium onto the outer wall of the roller 800 before the roller 800 is fitted into the rubber sleeve 900.

[0138] Specifically, the nozzle 600 is a lubricating oil nozzle. When the pushing mechanism 500 pushes the roller 800 along the second direction Y to insert it into the rubber sleeve 900 located in the assembly area R2, and when the right end of the roller 800 approaches the assembly area R2, the nozzle 600 sprays lubricating oil onto the outer wall of the roller 800 to lubricate the roller 800. This reduces the friction generated when the roller 800 is inserted into the rubber sleeve 900 and comes into contact with it, which is beneficial for the roller 800 to be inserted into the rubber sleeve 900 stably and smoothly.

[0139] See also Figure 5 In some embodiments of this application, the feeding device has at least two, and the two frames 300 on the two adjacent feeding devices are spaced apart along the second direction Y and the spacing is adjustable.

[0140] Specifically, the automatic roller sleeve system also includes a base 700, which has an adjusting guide rail 710 extending along the second direction Y. The frame 300 is slidably mounted on the adjusting guide rail 710. The base 700 is provided with adjusting wheels that are pulsatorically connected to the frame 300. By rotating the adjusting wheels, the frame 300 is driven to slide along the adjusting guide rail 710, thereby adjusting the distance between two adjacent feeding devices, and thus adjusting the distance between the sleeves 900 on two adjacent assembly areas R2. This allows for adaptation to rollers 800 of different specifications and lengths, improving the universality and compatibility of the automatic roller sleeve system of this application.

[0141] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0142] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A feeding device, characterized in that, include: The expansion sleeve device includes a feeding track and a heating mechanism. The feeding track is provided with a plurality of receiving cavities for receiving rubber sleeves at intervals along a first direction. The heating mechanism includes a plurality of heating pipes distributed at intervals along the first direction. Two adjacent heating pipes are connected through at least one of the receiving cavities to communicate with the rubber sleeve in the receiving cavity to form a heating channel for the flow of heating medium. All the heating channels are connected, and the heating medium is configured to heat the rubber sleeve. The frame is provided with a heating zone and an assembly zone arranged along the first direction. All the heating pipes are located on the frame and distributed on the side of the heating zone. The feeding track is configured to move along the first direction to drive the rubber sleeves on it to pass through the heating zone and the assembly zone one by one, and to make the rubber sleeves communicate with the heating pipes in the heating zone. The rubber sleeve has a first heating state and a second heating state; when the rubber sleeve is in the first heating state, the rubber sleeve is locked in the heating zone by the frame to seal and communicate with the heating pipe; when the rubber sleeve is in the second heating state, the rubber sleeve is released by the frame so that it can move along the first direction under the drive of the feeding track.

2. The feeding device according to claim 1, characterized in that, The heating mechanism further includes a heat transfer pipe, a heat return pipe, and a heater for outputting the heating medium. The heating pipe at its closest end along the first direction is connected to the heater through the heat transfer pipe, and the heating pipe at its farthest end along the first direction is connected to the heater through the heat return pipe. All the heating channels are connected in series along the first direction.

3. The feeding device according to claim 1, characterized in that, The frame includes a first limiting plate and a second limiting plate disposed opposite to each other, and the heating zone is defined between the first limiting plate and the second limiting plate; The first limiting plate is configured to abut the rubber sleeve against the second limiting plate, so that the rubber sleeve is in the first heating state; Furthermore, the first limiting plate can rotate relative to the feeding track to loosen the rubber sleeve, so that the rubber sleeve is in the second heating state.

4. The feeding device according to claim 3, characterized in that, Both the first limiting plate and the second limiting plate are provided with a plurality of heating pipes along the first direction. When the rubber sleeve is located in the heating zone, the heating pipes on the first limiting plate are connected to the heating pipes on the second limiting plate through the rubber sleeve.

5. The feeding device according to claim 3, characterized in that, The sidewalls of the first limiting plate and the second limiting plate are both provided with mounting holes for connecting the heating pipe. When the rubber sleeve is in the first heating state, the two ends of the rubber sleeve cover the mounting holes on the first limiting plate and the second limiting plate, respectively.

6. The feeding device according to claim 1, characterized in that, The frame is also provided with a feeding area, and the assembly area is located between the heating area and the feeding area; The feeding track is circular, and all the receiving cavities are spaced apart along the extension trajectory of the feeding track. The feeding track can drive the rubber sleeve on it to turn in the unloading area so that the rubber sleeve can disengage from the receiving cavity.

7. The feeding device according to claim 6, characterized in that, The frame includes a feeding track located at the bottom of the feeding area, the feeding track being used to receive the rubber sleeves detached from the feeding area and to transport the rubber sleeves along its own extending trajectory.

8. The feeding device according to claim 1, characterized in that, The frame also has a loading area, and the heating area is located between the assembly area and the loading area; The frame includes a feeding track located in the feeding area, the feeding track being used to transport the plurality of rubber sleeves one by one to the receiving cavity on the feeding track.

9. The feeding device according to claim 8, characterized in that, The loading track is inclined relative to the feeding track, and the inclination angle is adjustable.

10. An automatic roller coating system, characterized in that, include: The feeding device as described in any one of claims 1 to 9; A support mechanism for placing a roller such that the roller is coaxial with a rubber sleeve located in the assembly area in a second direction; The pushing mechanism is configured to push the roller into the rubber sleeve along the second direction.

11. The automatic roller coating system according to claim 10, characterized in that, The support mechanism includes at least two support blocks spaced apart along the second direction. Each support block has a contoured notch for engaging with the peripheral wall of the roller. All the contoured notches are coaxially arranged along the second direction.

12. The automatic roller coating system according to claim 11, characterized in that, The support mechanism includes a plurality of second drive members connected to the support block, and the second drive members are configured to drive the support block to rise and fall relative to the frame.

13. The automatic roller coating system according to claim 10, characterized in that, The pushing mechanism includes a first driving member and a pushing member. The first driving member is configured to push the roller to move via the pushing member. The pushing member extends along the second direction with a limiting sleeve. The limiting sleeve is used to be fitted onto the end of the roller away from the assembly area when the pushing member pushes the roller.

14. The automatic roller coating system according to claim 13, characterized in that, The automatic roller coating system also includes multiple position detectors spaced apart along the second direction, all of which are used to detect the position of the pusher in the second direction.

15. The automatic roller coating system according to any one of claims 10 to 14, characterized in that, The frame is equipped with a nozzle at the assembly area, and the nozzle is configured to spray a lubricating medium onto the outer wall of the roller before the roller is fitted into the rubber sleeve.

16. The automatic roller coating system according to any one of claims 10 to 14, characterized in that, The feeding device has at least two, and the two frames on two adjacent feeding devices are spaced apart along the second direction and the spacing is adjustable.

17. The automatic roller coating system according to claim 16, characterized in that, The automatic roller coating system also includes a base, the base being provided with an adjusting guide rail extending along the second direction, and the frame being slidably mounted on the adjusting guide rail.

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