Lifting mechanism and roller changing system

Abstract

The utility model discloses a lifting mechanism and a roller changing system, and belongs to the technical field of battery production. The lifting mechanism comprises a tray suitable for being arranged opposite to the roller in the vertical direction, and a groove used for containing the roller is formed; the hydraulic cylinder comprises a cylinder barrel, at least one stage of moving cylinder slidably mounted in the cylinder barrel and a piston rod slidably mounted in the innermost stage of moving cylinder, the cylinder barrel is suitable for being mounted on the roller press, the tray is supported on the piston rod, and every two adjacent stages of moving cylinders are in sliding fit; the hydraulic cylinder is configured to drive the moving cylinder and the piston rod to reciprocate by injecting oil into or returning oil to the cylinder barrel so as to drive the tray to ascend and descend. By means of the roller changing mode design that the hydraulic cylinder drives the tray to ascend and descend, uncertainty and potential accident risks of manual operation are reduced, safety of roller changing operation is improved, roller changing time is greatly shortened, production line rhythm and production capacity are improved, input of manpower and material resources is greatly reduced, and roller changing cost is reduced.

Description

Technical Field

[0001] This application belongs to the field of battery manufacturing technology, and in particular relates to a lifting mechanism and a roller changing system. Background Technology

[0002] The front-end processes of lithium-ion battery manufacturing are for producing the positive and negative electrode sheets. The sheet manufacturing process includes slurry preparation, coating, plating, rolling, and slitting. Electrode rolling is an important step in the lithium-ion battery production process, designed to produce electrode sheets with the designed thickness.

[0003] In existing traditional technologies, the roll changing operation of roller presses is completed by manually hoisting the rollers. However, since the diameter of the rollers commonly used today is 900mm to 1300mm, the weight of a single roller usually reaches 15t to 18t. Such a large size makes the roll changing method using manual hoists pose a serious safety risk. In addition, each roll changing requires a lot of manpower and resources, and the entire roll changing process takes at least 3 to 5 days of work, which seriously affects the production line cycle and production capacity. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a lifting mechanism and a roller changing system, which improves the safety of roller changing operations and increases production line cycle time and production capacity.

[0005] In a first aspect, this application provides a lifting mechanism for supporting the rolls of a conveyor roller press, comprising:

[0006] A tray, adapted to be arranged vertically opposite to the roll, and forming a groove for placing the roll;

[0007] A hydraulic cylinder includes a cylinder barrel, at least one stage of a moving cylinder slidably mounted within the cylinder barrel, and a piston rod slidably mounted within the innermost stage of the moving cylinder. The cylinder barrel is adapted to be mounted on the roller press. The pallet is supported by the piston rod. Adjacent stages of the moving cylinders are slidably engaged. The hydraulic cylinder is configured to drive the moving cylinders and the piston rod to reciprocate by injecting or returning oil into the cylinder barrel, thereby causing the pallet to rise and fall.

[0008] According to the lifting mechanism of this application, the roller changing method, which uses a hydraulic cylinder to drive the pallet to lift and lower, replaces the traditional manual hoisting method for roller changing. This reduces the uncertainty and potential accident risks of manual operation, thereby significantly improving the safety of roller changing operations in the roller press. At the same time, the hydraulic lifting mechanism can quickly and accurately raise and lower the rollers, greatly shortening the roller changing time, thus effectively improving the production line cycle time and production capacity, and significantly reducing the input of manpower and material resources, thereby reducing the cost of roller changing.

[0009] According to one embodiment of this application, the lifting mechanism further includes:

[0010] A pad block, the top of which is connected to the tray, a limiting groove formed at the bottom of the pad block, and a limiting protrusion at the top of the piston rod for engaging with the limiting groove.

[0011] According to one embodiment of this application, the limiting protrusion is a sphere, and the pad includes a first segment and a second segment connected vertically. The first segment is connected to the tray and is an integrated structure. The second segment includes multiple separate parts spliced ​​end to end. The first segment and the second segment together form the limiting groove, which is open on both sides vertically and is spherical.

[0012] According to one embodiment of this application, the tray is used to support the middle part of the roll, and the groove wall is an arc surface adapted to match the roll surface of the roll.

[0013] According to one embodiment of this application, the lifting mechanism further includes:

[0014] A displacement sensor is used to measure the vertical distance the tray moves.

[0015] According to one embodiment of this application, the displacement sensor includes:

[0016] A fixed base is provided, wherein the cylinder is provided with a reference platform, and the fixed base is installed on the reference platform;

[0017] The measuring head is mounted on the tray and is vertically opposite to the fixed base;

[0018] A pull rope is vertically and retractably connected between the fixed base and the measuring head.

[0019] Secondly, this application provides a roll changing system, the roll changing system comprising:

[0020] A roller press, comprising a frame and a plurality of rolls supported on the frame;

[0021] As described in any of the above-mentioned lifting mechanisms, the cylinder of the hydraulic cylinder of the lifting mechanism is mounted on the frame;

[0022] A transfer vehicle is used to transport the unloaded rolls or the rolls to be installed.

[0023] According to the roll changing system of this application, the aforementioned lifting mechanism replaces the traditional manual hoisting method for roll changing, reducing the uncertainty and potential accident risks of manual operation, thereby significantly improving the safety of roll changing operations in the roll press. At the same time, the hydraulic lifting mechanism can quickly and accurately raise and lower the rolls, greatly shortening the roll changing time, thereby effectively improving the production line cycle time and production capacity, and significantly reducing the input of manpower and material resources, thus lowering the roll changing cost.

[0024] According to one embodiment of this application, the transfer vehicle includes a vehicle body, a first guide rail mounted on the vehicle body, and a connecting frame slidably mounted on the first guide rail, the connecting frame being supported at both ends of the roll; the roll changing system further includes:

[0025] A support structure, mounted on the frame, includes a second guide rail. The connecting frame is configured to slide with the first and second guide rails when they are laterally abutted, so that the rolls can be transferred between the lifting mechanism and the transfer vehicle via the connecting frame.

[0026] According to one embodiment of this application, one of the first guide rail and the second guide rail is provided with a pre-installed component, and the other is provided with a slot for laterally mating with the pre-installed component, the pre-installed component and the slot being connected by a detachable fastener.

[0027] According to one embodiment of this application, a limiting baffle is provided around the periphery of the first guide rail.

[0028] According to one embodiment of this application, the transfer vehicle further includes:

[0029] A driving mechanism is used to drive the connecting frame to slide along the first guide rail and the second guide rail;

[0030] A calibration mechanism is used to fine-tune the position of the connector on the second guide rail.

[0031] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0032] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0033] Figure 1 This is one of the structural schematic diagrams of the lifting mechanism provided in the embodiments of this application;

[0034] Figure 2 This is the second schematic diagram of the lifting mechanism provided in the embodiments of this application;

[0035] Figure 3 yes Figure 1 Enlarged view of the structure at point A in the middle;

[0036] Figure 4 This is one of the structural schematic diagrams of the roller changing system provided in the embodiments of this application;

[0037] Figure 5 This is a second schematic diagram of the roller changing system provided in the embodiments of this application;

[0038] Figure 6 yes Figure 4 Enlarged view of the structure at point B;

[0039] Figure 7 This is one of the schematic diagrams of the roll changing process of the roll changing system provided in the embodiments of this application;

[0040] Figure 8 This is the second schematic diagram of the roller changing process of the roller changing system provided in the embodiments of this application.

[0041] Figure label:

[0042] Roll changing system 10;

[0043] Lifting mechanism 11;

[0044] Tray 111, Groove 1111;

[0045] Hydraulic cylinder 112, cylinder barrel 1121, reference platform 11211, moving cylinder 1122, piston rod 1123, limit protrusion 11231;

[0046] Pad 113, first section 1131, second section 1132, limiting groove 1133;

[0047] Displacement sensor 114, fixed base 1141, measuring head 1142, pull rope 1143;

[0048] Roller press 12, frame 121, rolls 122;

[0049] Transfer vehicle 13, vehicle body 131, first guide rail 132, pre-assembled parts 1321, connecting frame 133, limit baffle 134, calibration mechanism 135;

[0050] Support structure 14, second guide rail 141, slot 1411, column 142. Detailed Implementation

[0051] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0052] This application discloses a lifting mechanism 11 for supporting the rolls 122 of a conveying roller press 12.

[0053] The following is for reference. Figures 1-8 The lifting mechanism 11 according to an embodiment of this application is described.

[0054] In some embodiments, such as Figure 1 and Figure 2 As shown, the lifting mechanism 11 includes a tray 111 and a hydraulic cylinder 112.

[0055] The tray 111 is adapted to be vertically opposite to the roll 122, and the tray 111 forms a groove 1111 for placing the roll 122; the hydraulic cylinder 112 includes a cylinder barrel 1121, at least one stage motion cylinder 1122 slidably mounted in the cylinder barrel 1121, and a piston rod 1123 slidably mounted in the innermost stage motion cylinder 1122. The cylinder barrel 1121 is adapted to be mounted on the roller press 12, the tray 111 is supported by the piston rod 1123, and adjacent two stages of motion cylinder 1122 are slidably engaged. The hydraulic cylinder 112 is configured to drive the motion cylinder 1122 and the piston rod 1123 to reciprocate by injecting or returning oil into the cylinder barrel 1121, so as to drive the tray 111 to move up and down.

[0056] The tray 111 can be manufactured by welding, casting or machining, and the groove 1111 of the tray 111 can be designed as V-shaped, U-shaped or other shapes, etc., which is not limited in this application embodiment.

[0057] The cylinder barrel 1121, as the fixed part of the hydraulic cylinder 112, is mounted on the frame 121 of the roller press 12 to provide stable support.

[0058] One or more hydraulic cylinders 112 can be provided, where "more" means two or more. Multiple hydraulic cylinders 112 are spaced apart on the horizontal plane to provide uniform support force. In practical applications, the number of hydraulic cylinders 112 can be adjusted according to the load conditions. This application embodiment does not limit this.

[0059] For example, in some embodiments, such as Figure 1 and Figure 2 As shown, there are two hydraulic cylinders 112.

[0060] The motion cylinder 1122 can be set to one or more stages, with multiple stages meaning two or more stages. The multi-stage motion cylinders 1122 are sequentially nested from the inside to the outside, and adjacent two-stage motion cylinders 1122 can slide relative to each other. In practical applications, the hydraulic cylinder 112 with the number of stages can be selected according to the lifting stroke and load conditions. This application embodiment does not limit this.

[0061] For example, in some embodiments, such as Figure 1 and Figure 2 As shown, the hydraulic cylinder 112 includes a two-stage motion cylinder 1122.

[0062] The outermost moving cylinder 1122 is slidably engaged with the cylinder barrel 1121, and the innermost moving cylinder 1122 is equipped with a piston rod 1123. The top of the piston rod 1123 supports the tray 111. The tray 111 is raised and lowered by the extension and retraction of the moving cylinder 1122 and the piston rod 1123.

[0063] It should be noted that, based on the hydraulic cylinder 112, hydraulic system components such as oil pump, oil tank, valve, and pressure sensor are usually provided to inject or return oil into the cylinder 1121, drive the moving cylinder 1122 and piston rod 1123 to reciprocate, and precisely control the lifting speed and position of the pallet 111 by controlling the opening and closing of the valve and the flow direction of the oil.

[0064] In actual implementation, such as Figure 1 As shown, under normal operating conditions, the hydraulic cylinder 112 of the roller press 12 is in the retracted state, and the pallet 111 is in its lowest position. During the unloading process, after the power and air supply to the roller press 12 are cut off, the hydraulic cylinder 112 control key is activated to inject pressurized oil into the cylinder 1121, such as... Figure 2 As shown, hydraulic oil pushes the motion cylinder 1122 and piston rod 1123 to gradually extend from the outside to the inside, driving the tray 111 to move upward until it reaches the predetermined height, that is, the piston rod 1123 fully contacts the outer surface of the roll 122 and then automatically stops supplying oil. Then, the relevant operators remove the fixing parts between the roll 122 and the frame 121 so that the tray 111 can fully support the roll 122. Then, the return oil valve is opened and the oil flows out from the cylinder 1121. Under the action of gravity, the motion cylinder 1122 and piston rod 1123 gradually retract from the inside to the outside, driving the tray 111 and the roll 122 on it to descend together until the hydraulic cylinder 112 returns to the retracted state and the return oil valve is closed.

[0065] During the roll loading process, after the power and air supply to the roll press 12 are turned off, the control key of the hydraulic cylinder 112 is activated to inject pressurized oil into the cylinder 1121. The hydraulic oil pushes the motion cylinder 1122 and piston rod 1123 to gradually extend from the outside to the inside, driving the tray 111, which is loaded with the rolls to be installed, to move upward until it reaches the predetermined height. Then, the relevant operators fix the rolls 122 to the frame 121 so that the rolls 122 can be fully supported on the frame 121. Then, the return oil valve is opened, and the oil flows out from the cylinder 1121. Under the action of gravity, the motion cylinder 1122 and piston rod 1123 gradually retract from the inside to the outside, driving the tray 111 to lower together until the hydraulic cylinder 112 returns to the retracted state and the return oil valve is closed.

[0066] Understandably, on the one hand, the traditional manual hoist-assisted roll changing method, due to the large size of the roll 122, can easily cause it to fall during manual operation, resulting in serious injury to the operator. The lifting mechanism 11 of this application, driven stably by the hydraulic cylinder 112, can precisely control the lifting and lowering process of the roll 122, greatly reducing the risk of the roll 122 falling and effectively improving the safety of the roll changing operation. Furthermore, because the hydraulic cylinder 112 has an overload protection function, it can automatically stop when the load exceeds the design range, further enhancing operational safety. On the other hand, the traditional roll changing process takes a significant amount of time, leading to excessive downtime and affecting the continuity of the entire production line. However, the lifting mechanism 11 of this application, with its efficient lifting and lowering process, can quickly complete the replacement of the roll 122, greatly improving the production line cycle time and thus increasing production capacity. Moreover, the traditional method requires a large amount of manpower to operate the hoist and move the roll 122 each time, consuming a significant amount of manpower and resources. This lifting mechanism 11 requires only a few personnel to operate and monitor, which can complete the lifting and lowering of the roll 122, greatly reducing manpower input and avoiding additional material losses such as equipment damage caused by improper manual operation.

[0067] The lifting mechanism 11 provided in this application embodiment is designed to change the rollers by driving the pallet 111 to rise and fall with the hydraulic cylinder 112. This replaces the traditional manual hoisting method for changing rollers, reducing the uncertainty and potential accident risks of manual operation, thereby significantly improving the safety of roller changing operations on the roller press 12. At the same time, the hydraulic lifting mechanism 11 can quickly and accurately raise and lower the rollers 122, greatly shortening the roller changing time, thereby effectively improving the production line cycle time and production capacity, and significantly reducing the input of manpower and material resources, thus lowering the cost of changing rollers.

[0068] In some embodiments, such as Figures 1-3 As shown, the lifting mechanism 11 also includes a pad block 113.

[0069] The top of the pad 113 is connected to the tray 111, the bottom of the pad 113 forms a limiting groove 1133, and the top of the piston rod 1123 has a limiting protrusion 11231 for engaging with the limiting groove 1133.

[0070] In other words, the pallet 111 is indirectly connected to the hydraulic cylinder 112 through the pad 113. The pad 113 can be an integrated structure or a split structure, and this application embodiment does not limit this.

[0071] The connection method between the pad 113 and the tray 111 may include, but is not limited to, bolt connection, welding or snap-fit, etc., and the embodiments of this application do not limit this.

[0072] A limiting groove 1133 is machined at the bottom of the pad 113. The shape and size of the limiting groove 1133 match the limiting protrusion 11231 at the top of the piston rod 1123 so that the two can fit together tightly.

[0073] The shape of the limiting protrusion 11231 may include, but is not limited to, a sphere, rectangle, hemisphere, cylinder, or cone, etc., and this application embodiment does not limit it in this respect.

[0074] The lifting mechanism 11 provided in this application embodiment, through the setting of the aforementioned pad 113 and the cooperative design of the limiting protrusion 11231 and the limiting groove 1133, realizes the indirect connection between the pallet 111 and the piston rod 1123. Compared with directly supporting the pallet 111 on the piston rod 1123, this design can effectively reduce the probability of the pallet 111 shifting or shaking due to uneven force during lifting or lowering, making the connection between the piston rod 1123 and the pallet 111 more stable, greatly enhancing the stability of the lifting mechanism 11 during operation, further improving the safety of roller changing operations, and can evenly distribute the load during the lifting process on the pad 113 and the piston rod 1123, reducing local stress concentration, thereby extending the service life of the piston rod 1123 and the pallet 111.

[0075] In some embodiments, such as Figure 3 As shown, the limiting protrusion 11231 is a sphere, and the pad block 113 includes a first segment 1131 and a second segment 1132 connected vertically. The first segment 1131 is connected to the tray 111 and is an integrated structure. The second segment 1132 includes multiple parts spliced ​​together end to end. The first segment 1131 and the second segment 1132 together form a limiting groove 1133 that is open on both sides vertically and is spherical.

[0076] The connection method between the first segment 1131 and the tray 111 may include, but is not limited to, bolt connection, welding or snap-fit, etc., and this application embodiment does not limit this.

[0077] The second segment 1132 is composed of multiple parts connected end to end, making the second segment 1132 as a whole form a ring. Here, "multiple" means two or more.

[0078] For example, in some embodiments, the second segment 1132 includes two separate parts joined end to end.

[0079] The connection methods between the various parts of the first segment 1131 and the second segment 1132 may include, but are not limited to, bolt connection, welding or snap-fit, etc., and the embodiments of this application do not limit this.

[0080] It is understandable that, such as Figure 3 As shown, the limiting protrusion 11231 at the top of the piston rod 1123 is designed in a spherical shape, and the limiting groove 1133 is also a matching spherical groove. This allows the pallet 111 to adapt to certain angle changes during lifting. Compared with the traditional fixed limiting structure, this design can better adapt to the slight deviations that may occur when the roller 122 is placed, as well as the angle changes of the pallet 111 caused by equipment vibration during lifting, thus improving the versatility and stability of the lifting mechanism 11. Based on the integrated structure of the first section 1131 and the split structure of the second section 1132, the first section 1131 can maintain overall strength and stability, while the split design of the second section 1132 is adapted to the shape characteristics of the spherical limiting protrusion 11231, providing a structural basis for the limiting assembly between the pad block 113 and the spherical limiting protrusion 11231. Furthermore, the top and bottom of the limiting groove 1133, which is formed by the first segment 1131 and the second segment 1132, are both open. The open design at the bottom of the limiting groove 1133 is used for the piston rod 1123 to pass through, and the open design at the top of the limiting groove 1133 can be used to inject a lubricating medium, such as lubricating oil, to reduce the friction between the limiting protrusion 11231 and the limiting groove 1133.

[0081] The lifting mechanism 11 provided in this embodiment provides good stability for supporting the conveying roller 122 through the design of the spherical limiting protrusion 11231 and the matching spherical limiting groove 1133. Even if the pallet 111 is subjected to external force or undergoes a slight angle change during the lifting process, the limiting protrusion 11231 can rotate freely in the limiting groove 1133 to maintain positional stability. Combined with the design of the first section 1131 as an integrated structure and the second section 1132 as a split structure, the overall strength and stability of the pad 113 are improved without the need for normal assembly between the pad 113 and the limiting protrusion 11231. In addition, relevant operators can inject lubricating medium into the limiting groove 1133 from the top to reduce the friction between the limiting protrusion 11231 and the limiting groove 1133, further increasing the stability and reliability during the lifting and raising of the roller 122.

[0082] In some embodiments, such as Figure 1 , Figure 2 and Figure 7 As shown, the tray 111 is used to support the middle of the roll 122, and the groove wall of the groove 1111 is an arc surface suitable for matching the roll surface of the roll 122.

[0083] It should be noted that the roll 122 mainly consists of three parts: the roll body, the roll neck, and the shaft head. The roll body is the middle part of the roll 122 that actually participates in rolling the electrode sheets. The roll body has a smooth cylindrical or grooved surface. The roll neck is installed in the bearing and transmits the rolling force to the stand 121 through the bearing housing and the pressing device. The shaft head is connected to the gear housing through the connecting shaft and transmits the rotational torque of the motor to the roll 122.

[0084] In this case, such as Figure 1 , Figure 2 and Figure 7 As shown, the tray 111 supports the roll body of the roll 122 to maintain the stability of the roll 122's center of gravity during lifting. The groove 1111 on the tray 111 has an arc-shaped wall that matches the curvature of the roll surface of the roll 122. This arc-shaped design allows the groove wall to fit tightly against the roll surface of the roll 122, increasing the stability of the roll 122 on the tray 111, reducing swaying during lifting and lowering, and increasing the contact area between the tray 111 and the roll 122, thus reducing localized stress concentration.

[0085] The arc-shaped groove wall can be formed by machining, casting or molding, etc., but this application embodiment does not limit this.

[0086] The lifting mechanism 11 provided in this application embodiment, by designing the groove wall of the tray 1111 as arc-shaped, achieves a tight fit between the tray 111 and the roller surface of the roll 122, effectively reducing the swaying and slippage of the roll 122 during the lifting and lowering processes, further improving the stability and safety of the roll changing process, while increasing the contact area between the tray 111 and the roll 122, which can distribute pressure, extend the service life of the roll 122 and the tray 111, and reduce maintenance costs.

[0087] In some embodiments, such as Figure 1 and Figure 2 As shown, the lifting mechanism 11 also includes a displacement sensor 114.

[0088] The displacement sensor 114 is used to measure the vertical movement distance of the tray 111.

[0089] The displacement sensor 114 may include, but is not limited to, a wire displacement sensor, a photoelectric displacement sensor, a magnetostrictive displacement sensor, a laser rangefinder sensor, or an encoder displacement sensor, etc., and the embodiments of this application do not limit it.

[0090] In actual operation, the displacement sensor 114 can be connected to the central control processor via a data transmission line, transmitting the measured displacement signal to the control system in real time. Taking a single lifting process as an example, when the hydraulic cylinder 112 is in the retracted state and the tray 111 is at its lowest position, the displacement sensor 114 initializes and prepares for measurement, injecting oil into the cylinder 1121 to push the piston rod 1123 upward. The displacement sensor 114 can measure the vertical movement distance of the tray 111 in real time, that is, the extension and retraction distance of the piston rod 1123, and transmit the signal to the central control processor. The control system can adjust the oil injection speed of the hydraulic cylinder 112 based on the feedback signal from the displacement sensor 114 to maintain the smooth rise of the tray 111. If the displacement sensor 114 detects that the rising speed of the tray 111 is too fast or too slow, the control system can automatically adjust the oil injection amount of the hydraulic cylinder 112. When pallet 111 rises to the set height, displacement sensor 114 transmits a signal to the control system, which then stops oil injection, maintaining pallet 111 at the high position. Additionally, if necessary, the control system can fine-tune the oil injection amount to further improve the accuracy of pallet 111's position. When it is necessary to lower roller 122, the control system initiates the oil return procedure, hydraulic cylinder 112 returns oil, and piston rod 1123 moves downwards. Displacement sensor 114 can monitor the descent speed and position of pallet 111 in real time, maintaining a smooth descent process until pallet 111 reaches its lowest position, at which point roller 122 is removed from pallet 111.

[0091] The lifting mechanism 11 provided in this application embodiment, through the setting of the displacement sensor 114, realizes real-time measurement of the moving distance of the pallet 111, which can more accurately control the extension stroke and speed of the lifting mechanism 11, improve the positioning accuracy and repeatability of the lifting mechanism 11, and at the same time can monitor the moving status of the pallet 111 in real time. The control system can detect abnormalities in a timely manner and take measures, thereby enhancing the safety and reliability of the lifting mechanism 11. In addition, the real-time data provided by the displacement sensor 114 can be used for fault diagnosis and preventive maintenance of the lifting mechanism 11, thereby simplifying the maintenance process and reducing maintenance costs.

[0092] In some embodiments, such as Figure 1 and Figure 2 As shown, the displacement sensor 114 includes: a fixed base 1141, a measuring head 1142, and a pull rope 1143.

[0093] The cylinder 1121 is provided with a reference platform 11211, and a fixed base 1141 is installed on the reference platform 11211; the measuring head 1142 is installed on the tray 111, and the measuring head 1142 and the fixed base 1141 are arranged vertically opposite each other; the pull rope 1143 is vertically telescopically connected between the fixed base 1141 and the measuring head 1142.

[0094] The fixed base 1141 can be installed on the reference platform 11211 of the cylinder 1121 by means of bolt connection, welding or snap-fit, and the measuring head 1142 can be fixed to the tray 111 by means of bolt connection, welding or snap-fit, etc., but this application embodiment does not limit this.

[0095] The measuring head 1142 can be mounted at a fixed position on the tray 111, such as the edge of the tray 111, so that the measuring head 1142 is vertically opposite to the fixed base 1141.

[0096] The pull rope 1143 can be made of high-strength and low-elongation materials, such as stainless steel wire rope, Kevlar rope, etc.

[0097] In actual operation, the displacement sensor 114 can be initialized before use, such as calibrating the zero point and setting the measurement range. When the lifting mechanism 11 is working, the tray 111 moves up and down, and the pull rope 1143 extends and retracts accordingly. The extension length of the pull rope 1143 is proportional to the lifting height of the tray 111. By measuring the extension length of the pull rope 1143, the vertical displacement of the tray 111 can be indirectly obtained. For example, a displacement measuring device (such as a rotary encoder) connected to the pull rope 1143 can be installed in the fixed base 1141. When the pull rope 1143 is stretched, it drives the shaft of the rotary encoder to rotate. The rotary encoder converts the rotation angle into an electrical signal, which is transmitted to the control system in real time through connection with the control system. The control system can determine whether the tray 111 has reached the predetermined lifting height based on the received data. If the predetermined height is reached, the control system will issue a command to stop oil injection, causing the tray 111 to stop rising.

[0098] The lifting mechanism 11 provided in this application embodiment, by setting the position sensor as described above, consists of a pull rope 1143, a fixed base 1141, and a measuring head 1142, can directly and accurately measure the vertical displacement of the tray 111. The extension length of the pull rope 1143 has a strict linear relationship with the displacement height of the tray 111. As long as the extension length of the pull rope 1143 can be accurately measured, high-precision displacement data of the tray 111 can be obtained. Compared with some indirect measurement methods, this design can reduce measurement errors and provide more accurate position feedback for the control system, thereby significantly improving the motion accuracy of the lifting mechanism 11.

[0099] This application also discloses a roller changing system 10.

[0100] In some embodiments, such as Figure 4 and Figure 5 As shown, it includes: a roller press 12, a transfer vehicle 13, and a lifting mechanism 11 as described in any of the above embodiments.

[0101] The roller press 12 includes a frame 121 and a plurality of rolls 122 supported on the frame 121; the cylinder 1121 of the hydraulic cylinder 112 of the lifting mechanism 11 is mounted on the frame 121; the transfer vehicle 13 is used to transport the unloaded rolls 122 or the rolls 122 to be installed.

[0102] Multiple rolls 122 are vertically spaced and supported on the frame 121, where "multiple" means two or more.

[0103] For example, in some embodiments, such as Figure 4 , Figure 7 and Figure 8 As shown, the roller press 12 includes a frame 121 and two rolls 122 supported on the frame 121.

[0104] In actual implementation, such as Figure 7 and Figure 8 As shown, the disassembly of each roll 122 is carried out separately, and the multiple rolls 122 are disassembled sequentially from bottom to top and transported sequentially by the transfer vehicle 13. Similarly, the installation of each roll 122 is also carried out separately, and the multiple rolls 122 are installed sequentially from top to bottom.

[0105] The roll changing system 10 provided in this application, through the setting of the above-mentioned lifting mechanism 11, replaces the traditional manual hoisting method of roll changing, reducing the uncertainty and potential accident risks of manual operation, thereby significantly improving the safety of roll changing operation of the roll press 12. At the same time, the hydraulic lifting mechanism 11 can quickly and accurately raise and lower the roll 122, greatly shortening the roll changing time, thereby effectively improving the production line cycle and production capacity, and significantly reducing the input of manpower and material resources, thus reducing the cost of roll changing.

[0106] In some embodiments, such as Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the transfer vehicle 13 includes a vehicle body 131, a first guide rail 132 mounted on the vehicle body 131, and a connecting frame 133 slidably mounted on the first guide rail 132. The connecting frame 133 is supported at both ends of the roll 122. The roll changing system 10 also includes a support structure 14.

[0107] The support structure 14 is mounted on the frame 121. The support structure 14 includes a second guide rail 141. The connecting frame 133 is configured to slide with the first guide rail 132 and the second guide rail 141 when the first guide rail 132 and the second guide rail 141 are laterally aligned, so that the roll 122 can be transferred between the lifting mechanism 11 and the transfer car 13 through the connecting frame 133.

[0108] The vehicle body 131 serves as the basic structure of the transfer vehicle 13 and can bear the weight of other components and the roller 122. The first guide rail 132 is used to support and guide the sliding of the connecting frame 133. The connecting frame 133 is used to realize the transfer of the roller 122 between the vehicle body 131 and the pallet 111 of the lifting mechanism 11.

[0109] It should be noted that the roll 122 mainly consists of three parts: the roll body, the roll neck, and the shaft head. The roll body is the middle part of the roll 122 that actually participates in rolling the electrode sheets. The roll body has a smooth cylindrical or grooved surface. The roll neck is installed in the bearing and transmits the rolling force to the stand 121 through the bearing housing and the pressing device. The shaft head is connected to the gear housing through the connecting shaft and transmits the rotational torque of the motor to the roll 122.

[0110] In this case, such as Figure 8 As shown, the tray 111 is used to support the neck of the roll 122. Since the lower surface of the roll neck is usually lower than the lower surface of the roll body and the roll neck is mostly cuboid, when the roll 122 is placed on the connecting frame 133, the roll body is suspended in the air, and the shape of the roll neck itself is used to limit the displacement of the roll 122 on the transfer car 13.

[0111] like Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the support structure 14 may also include multiple columns 142, where multiple means two or more. One end of the column 142 can be installed on the frame 121 by means of bolt connection, welding or snap-fit, and the other end of the column 142 can support the second guide rail 141.

[0112] In actual implementation, such as Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, the entire roll changing operation can be achieved as follows: The transfer vehicle 13 travels to the side of the roll press 12, so that the first guide rail 132 is connected to the second guide rail 141. The connecting frame 133 slides from the first guide rail 132 to the target position on the second guide rail 141. The hydraulic cylinder 112 is injected with oil, pushing the motion cylinder 1122 and piston rod 1123 to extend. After the pallet 111 rises to the preset height, the relevant operators remove the fixing parts between the roll 122 and the frame 121, so that the pallet 111 fully supports the roll 122. The hydraulic cylinder 112 returns oil, the pallet 111 descends, and the roll 122 is placed smoothly on the connecting frame 133 of the transfer vehicle 13. The connecting frame 133 loaded with the roll 122 slides from the second guide rail 141 to the first guide rail 132. The transfer vehicle 13 transports the disassembled roll 122 to the designated position, and the roll unloading operation is completed. The transfer vehicle 13, carrying the rolls 122 to be installed, travels to the side of the roll press 12 and stops, so that the first guide rail 132 is connected to the second guide rail 141. The connecting frame 133, carrying the rolls 122 to be installed, slides from the first guide rail 132 to the target position on the second guide rail 141. The hydraulic cylinder 112 is injected with oil, pushing the motion cylinder 1122 and the piston rod 1123 to extend, so that the pallet 111 lifts the rolls 122 to be installed on the connecting frame 133. After the pallet 111 rises to the preset height, it fixes the rolls 122 to the frame 121, so that the rolls 122 are fully supported by the frame 121. The hydraulic cylinder 112 returns to oil, the pallet 111 descends and returns to the retracted state, and the roll loading operation is completed.

[0113] The roll changing system 10 provided in this application embodiment achieves rapid transfer of the roll 122 through the sliding cooperation between the first guide rail 132 and the second guide rail 141 via the connecting frame 133, further shortening the roll changing time. At the same time, it increases the stability of the roll 122 during the transfer process, reduces the risk of safety accidents caused by the roll 122 shaking or tilting, and reduces the links of manual handling and operation of the roll 122. Relevant operators only need to perform some simple monitoring and auxiliary operations, which greatly reduces labor intensity and lowers labor costs.

[0114] In some embodiments, such as Figure 6 As shown, one of the first guide rail 132 and the second guide rail 141 is provided with a pre-installed component 1321, and the other is provided with a slot 1411 for laterally mating with the pre-installed component 1321. The pre-installed component 1321 and the slot 1411 are connected by a detachable fastener.

[0115] In this embodiment, such as Figure 6 As shown, the first guide rail 132 is provided with a pre-installed component 1321, and the second guide rail 141 is provided with a slot 1411 for laterally mating with the pre-installed component 1321.

[0116] In other embodiments, the second guide rail 141 is provided with a pre-installed component 1321, and the first guide rail 132 is provided with a slot 1411 for laterally mating with the pre-installed component 1321.

[0117] The pre-installed component 1321 is installed at the end of the first guide rail 132 or the second guide rail 141, and can be designed as a plate structure or a protrusion structure, etc., which is not limited in this embodiment of the application.

[0118] The pre-assembly method of the pre-assembly component 1321 may include, but is not limited to, bolt connection, riveting or welding, etc., and the embodiments of this application do not limit this.

[0119] For example, both the first guide rail 132 and the second guide rail 141 are made of I-beams. Specifically, both the first guide rail 132 and the second guide rail 141 include two flanges and a web connected between the two flanges. An embedded part is connected to the web. The two flanges form the sidewalls of the slot 1411, and the web forms the bottom wall of the slot 1411.

[0120] Fasteners may include, but are not limited to, threaded connectors, pins, or snap fasteners, and the embodiments of this application do not limit them.

[0121] In actual implementation, such as Figure 6 As shown, align the pre-installed part 1321 of the first guide rail 132 with the slot 1411 of the second guide rail 141. By moving the vehicle body 131, the pre-installed part 1321 is slowly inserted into the slot 1411 laterally until the pre-installed part 1321 and the slot 1411 are fully engaged. After confirming that the docking is correct, the relevant operators can use fasteners to fix the pre-installed part 1321 and the slot 1411 together.

[0122] The roll changing system 10 provided in this application embodiment, through the cooperative design of the pre-installed component 1321 and slot 1411, and the setting of detachable fasteners, can play a good guiding and limiting role in the docking process, so that the first guide rail 132 and the second guide rail 141 can be accurately docked. It can also maintain the stability and reliability of the first guide rail 132 and the second guide rail 141 after docking, thereby improving the movement accuracy of the connecting frame 133 and reducing the risk of the roll 122 shaking and slipping due to loose track or poor docking.

[0123] In some embodiments, such as Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, a limiting baffle 134 is provided around the periphery of the connecting frame 133.

[0124] In some implementations, such as Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, depending on actual needs, limiting baffles 134 are only set at certain key parts of the first guide rail 132, such as both sides of the first guide rail 132.

[0125] In other embodiments, limiting baffles 134 are provided around the first guide rail 132 to form a complete enclosed structure.

[0126] Understandably, by setting a limiting baffle 134 around the periphery of the connecting frame 133, the connecting frame 133 is effectively prevented from sliding beyond the predetermined range on the first guide rail 132, reducing the risk of equipment damage caused by the connecting frame 133 deviating or derailing. In particular, when the connecting frame 133 is carrying the roll 122 and sliding, the limiting baffle 134 provides additional safety protection, thereby increasing the sliding stability of the connecting frame 133 and improving the safety of the roll changing operation.

[0127] In some embodiments, such as Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the transfer vehicle 13 also includes a drive mechanism and a calibration mechanism 135.

[0128] The drive mechanism is used to drive the connector 133 to slide along the first guide rail 132 and the second guide rail 141; the calibration mechanism 135 is used to fine-tune the position of the connector 133 on the second guide rail 141.

[0129] The drive mechanism may include, but is not limited to, an electric drive mechanism, a hydraulic drive mechanism, or a pneumatic drive mechanism; the embodiments of this application do not limit this.

[0130] The calibration method of the calibration agency 135 can be manual calibration or automatic calibration, and this application embodiment does not limit it.

[0131] In this embodiment, such as Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the calibration mechanism 135 may include a rotating handwheel and a lead screw drive component. The output end of the lead screw drive component can be connected to the connecting frame 133. The relevant operator can rotate the rotating handwheel to make the connecting frame 133 move slightly on the second guide rail 141 to achieve fine position adjustment.

[0132] It should be noted that if the drive mechanism is damaged and cannot work properly, the calibration mechanism 135 can also be used as a backup power source to complete the roll changing operation.

[0133] The roll changing system 10 provided in this application embodiment, through the above-mentioned drive mechanism and calibration mechanism 135, enables the connecting frame 133 to slide quickly along the first guide rail 132 and the second guide rail 141, reducing the time for manual pushing or handling and improving the roll changing efficiency. The calibration mechanism 135 can accurately adjust the position of the connecting frame 133 on the second guide rail 141 to achieve precise positioning of the connecting frame 133, thereby improving the position accuracy of the roll 122 during the transfer process, and thus enhancing the reliability and stability of the entire roll changing system 10.

[0134] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0135] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0136] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0137] In the description of this application, "multiple" means two or more.

[0138] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0139] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0140] Other configurations of the embodiments of this application, such as ... and ..., and operations, are known to those skilled in the art and will not be described in detail here.

[0141] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0142] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A lifting mechanism for supporting the rolls of a conveyor roller press, characterized in that, include: A tray, adapted to be arranged vertically opposite to the roll, and forming a groove for placing the roll; A hydraulic cylinder includes a cylinder barrel, at least one stage of a moving cylinder slidably mounted within the cylinder barrel, and a piston rod slidably mounted within the innermost stage of the moving cylinder. The cylinder barrel is adapted to be mounted on the roller press. The pallet is supported by the piston rod. Adjacent stages of the moving cylinders are slidably engaged. The hydraulic cylinder is configured to drive the moving cylinders and the piston rod to reciprocate by injecting or returning oil into the cylinder barrel, thereby causing the pallet to rise and fall.

2. The lifting mechanism according to claim 1, characterized in that, Also includes: A pad block, the top of which is connected to the tray, a limiting groove formed at the bottom of the pad block, and a limiting protrusion at the top of the piston rod for engaging with the limiting groove.

3. The lifting mechanism according to claim 2, characterized in that, The limiting protrusion is a sphere, and the pad includes a first segment and a second segment connected vertically. The first segment is connected to the tray and is an integrated structure. The second segment includes multiple separate parts spliced ​​end to end. The first segment and the second segment together form the limiting groove, which is open on both sides vertically and is spherical.

4. The lifting mechanism according to claim 1, characterized in that, The tray is used to support the middle part of the roll, and the groove wall is an arc surface adapted to match the roll surface of the roll.

5. The lifting mechanism according to any one of claims 1-4, characterized in that, Also includes: A displacement sensor is used to measure the vertical distance the tray moves.

6. The lifting mechanism according to claim 5, characterized in that, The displacement sensor includes: A fixed base is provided, wherein the cylinder is provided with a reference platform, and the fixed base is installed on the reference platform; The measuring head is mounted on the tray and is vertically opposite to the fixed base; A pull rope is vertically and retractably connected between the fixed base and the measuring head.

7. A roller changing system, characterized in that, include: A roller press, comprising a frame and a plurality of rolls supported on the frame; The lifting mechanism as described in any one of claims 1-6, wherein the cylinder of the hydraulic cylinder of the lifting mechanism is mounted on the frame; A transfer vehicle is used to transport the unloaded rolls or the rolls to be installed.

8. The roller changing system according to claim 7, characterized in that, The transfer vehicle includes a vehicle body, a first guide rail mounted on the vehicle body, and a connecting frame slidably mounted on the first guide rail, the connecting frame being supported at both ends of the roll; the roll changing system further includes: A support structure, mounted on the frame, includes a second guide rail. The connecting frame is configured to slide with the first and second guide rails when they are laterally abutted, so that the rolls can be transferred between the lifting mechanism and the transfer vehicle via the connecting frame.

9. The roller changing system according to claim 8, characterized in that, One of the first guide rail and the second guide rail is provided with a pre-installed component, and the other is provided with a slot for laterally mating with the pre-installed component. The pre-installed component and the slot are connected by a detachable fastener.

10. The roller changing system according to claim 8, characterized in that, The first guide rail is provided with a limiting baffle around its perimeter.

11. The roller changing system according to claim 8, characterized in that, The transfer vehicle also includes: A driving mechanism is used to drive the connecting frame to slide along the first guide rail and the second guide rail; A calibration mechanism is used to fine-tune the position of the connector on the second guide rail.

Images