Crude foil machine wind-up roll device with self-locking function and design method thereof

Abstract

According to the raw foil machine wind-up roll device with the self-locking function and the design method thereof, the locking device is arranged on one side of the end of the wind-up roll, the driving device in the locking device controls the clamping jaw to be close to or away from the end of the wind-up roll through the connecting rod mechanism, on one hand, the clamping jaw can be controlled to be away from the wind-up roll, and feeding and discharging of equipment are facilitated; when the wind-up roller needs to be stopped, the clamping jaw can be controlled to be close to and abut against the surface of the wind-up roller, rotation of the wind-up roller is stopped through friction force, and rapid locking of the wind-up roller can be achieved. Meanwhile, the clamping jaws can play a role in limiting protection in the rotating process of the wind-up roller, and the risk that the wind-up roller shakes and shifts due to external factors is prevented. By adjusting the driving stroke of the driving device, targeted state switching can be provided for the feeding and discharging process and the locking and stopping process of the winding roller, operation protection and rapid locking and stopping of the winding roller are achieved, applicability and universality are high, and the locking effect is stable and reliable.

Description

Technical Field

[0001] This invention belongs to the field of electrolytic copper foil manufacturing, specifically relating to a winding roller device for a foil production machine with a self-locking function, and also to a design method for a winding roller device for a foil production machine with a self-locking function. Background Technology

[0002] A copper foil forming machine is used to produce electrolytic copper foil. The anode tank of the machine is filled with copper sulfate electrolyte, and the cathode roller is installed inside the anode tank. The anode tank is connected to the positive terminal of the power supply, and the cathode roller is connected to the negative terminal. Under the action of related supporting systems, copper ions gain electrons and become copper atoms, which are deposited on the surface of the cathode roller to form copper foil. The copper foil is then peeled, trimmed, passivated, washed, and continuously wound into copper foil rolls. After the winding roller has reached a certain weight, a roll change operation is required, at which point a new winding roller needs to be replaced. Locking the winding roller is generally done manually, which is inefficient and poses safety hazards. Human error can cause the winding roller to be improperly fixed, resulting in unstable winding of the copper foil.

[0003] Utility model patent CN219652308U discloses an adjustable loading and unloading device for an electrolytic copper foil winding roller. Its characteristic is that it uses a cylinder to drive the bearing holder to move up and down to fix the winding roller. This fixing method lacks self-locking capability; when the cylinder pressure is unstable, the bearing holder will move up and down, leading to unstable winding. Therefore, this application anticipates a device for a foil-making machine winding roller with a self-locking function. Summary of the Invention

[0004] In order to overcome the problem that existing technologies cannot reliably and effectively lock the take-up rollers of foil making machines, this invention provides a take-up roller device for foil making machines with a self-locking function and its design method.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A foil-making machine take-up roller device with self-locking function includes a frame and a take-up roller with both ends slidably connected to the frame. The frame is also provided with a locking device located on one side of the take-up roller. The locking device includes a support on the frame and a pawl hinged to the support. The fixed end of the pawl is driven by a linkage mechanism to a drive device. The drive device can move the pawl closer to or away from the take-up roller through the linkage mechanism.

[0007] The linkage mechanism includes a rocker arm and a connecting rod. The support end is also provided with a first clearance groove. One end of the rocker arm is hinged in the first clearance groove, and the other end is hinged to the traction end of the drive device. One end of the claw hinged to the support is provided with a second clearance groove, and the rocker arm passes through the second clearance groove.

[0008] Both the first and second clearance slots are U-shaped groove structures. The rocker arm passes through the first clearance slot via a rocker arm pin. The pawl is hinged to the second clearance slot via a pawl pin.

[0009] The connecting rods are symmetrically hinged to both sides of the swing arm. The connecting rods are L-shaped structures, and one end of the bent portion of each of the symmetrically arranged connecting rods is hinged to the swing arm through the same first connecting rod pin. The other end of each connecting rod is hinged to the second relief groove through a second connecting rod pin.

[0010] Furthermore, the driving device includes a locking cylinder, which is connected to the frame via a support base. The traction end of the locking cylinder is provided with an open connector, which is hinged to the swing arm via a traction pin.

[0011] Furthermore, the end of the take-up roller is provided with a rotary support bearing, and the top of the frame is provided with a guide rail that is slidably connected to the rotary support bearing.

[0012] Furthermore, the claw has an arc-shaped shell structure, and a limiting groove is provided on the side of the claw near the take-up roller. The inner cavity of the limiting groove abuts against the structure of the rotary support bearing.

[0013] Furthermore, the support is provided with a support limiting groove on the side wall near the take-up roller, and the support limiting groove is adapted to the width of the rotary support bearing.

[0014] A design method for a foil-making machine take-up roller device with self-locking function includes the following steps:

[0015] Step S1: Based on the diameter of the rotary support bearing, preset the distance L2 between the pawl pin and the second connecting rod pin, and preset the distance L1 between the rocker arm pin and the pawl pin;

[0016] Step S2: Based on the limit stroke of the traction claw of the locking device, set the constraint conditions for the dead point position and the limit position of the locking device;

[0017] Step S3: Based on the distance lengths L1 and L2, and the constraints, establish the formula for solving the length of the locking device rod;

[0018] Step S4: Based on the formula for solving the length of the locking device rod, obtain the distance L3 between the second connecting rod pin and the first connecting rod pin, and the distance L4 between the swing rod pin and the first connecting rod pin. Based on the distance L3 and the distance L4, construct the locking device.

[0019] Furthermore, the constraint conditions for the dead point position and limit position of the locking device include:

[0020] The limit position satisfies the following condition: when the chuck is raised to the limit position, at least the take-up roller can be removed;

[0021] The dead point position satisfies the following condition: when the chuck descends to the dead point position, the gap between the take-up roller and the chuck is set.

[0022] Furthermore, the formula for determining the length of the locking device rod includes:

[0023] ;

[0024] ;

[0025] In the formula, L1 is the distance between the rocker arm pin and the pawl pin, L2 is the distance between the pawl pin and the second link pin, L3 is the distance between the second link pin and the first link pin, L4 is the distance between the rocker arm pin and the first link pin, α is the angle between the rocker arm and L1 when the linkage mechanism is in its extreme position, and α ≥ the opening angle of the pawl when the pawl is raised to its extreme position.

[0026] The beneficial effects of this invention are:

[0027] This application provides a foil-making machine take-up roller device with a self-locking function. A locking device is provided on one side of the end of the take-up roller. The drive device in the locking device controls the jaws to move closer to or away from the take-up roller via a linkage mechanism. On the one hand, it can control the jaws to move away from the take-up roller, facilitating the replacement of the take-up roller and the loading and unloading of the equipment. On the other hand, when the take-up roller is in the working position, the drive device can drive the jaws to approach and abut against the surface of the take-up roller via the linkage mechanism. The rapid extension of the cylinder can achieve rapid locking of the take-up roller. At the same time, through the reasonable design of the length and angle relationship of each linkage mechanism, the linkage mechanism is in the dead point position when the jaws are closed, avoiding the risk of the take-up roller shaking or displacement due to external factors. The jaws can also play a limiting protection role during the rotation of the take-up roller. The structure of this application adds an additional structure to the existing equipment without modifying the original structure. It has strong applicability and versatility, and the locking effect is stable and reliable. This application provides a design method for a foil-making machine take-up roller device with a self-locking function. Based on the size of the take-up roller, the length of each rod in the locking device is preset, and the dead point position and limit position in the locked and unlocked states are designed. By adjusting the drive stroke of the drive device, the take-up roller can be protected during the loading and unloading process and the self-locking process. Attached Figure Description

[0028] Figure 1 A schematic diagram of the structure of a foil-making machine winding roller device with self-locking function in the locked state according to an embodiment of the present disclosure is shown;

[0029] Figure 2A schematic diagram of the structure of a foil-making machine winding roller device with self-locking function in the non-locking state according to an embodiment of the present disclosure is shown;

[0030] Figure 3 A schematic diagram of the locking device in the locked state according to an embodiment of the present disclosure is shown;

[0031] Figure 4 A side view of the locking device according to an embodiment of the present disclosure is shown;

[0032] Figure 5 A schematic diagram of the locking device in the non-locking state according to an embodiment of the present disclosure is shown;

[0033] Figure 6 A cross-sectional view of the chuck jaws according to an embodiment of the present disclosure is shown;

[0034] Figure 7 A top view of the chuck claw according to an embodiment of the present disclosure is shown;

[0035] Figure 8 A side view of the chuck claw according to an embodiment of the present disclosure is shown;

[0036] Figure 9 A front view of the support according to an embodiment of this disclosure is shown;

[0037] Figure 10 A side view of the support according to an embodiment of the present disclosure is shown;

[0038] Figure 11 A schematic diagram of the support structure according to an embodiment of the present disclosure is shown.

[0039] In the diagram, 1-frame; 2-take-up roller; 3-guide rail; 4-locking device; 401-support; 402-claw; 403-swing rod pin; 404-second connecting rod pin; 405-claw pin; 406-connecting rod; 407-first connecting rod pin; 408-swing rod; 409-traction pin; 410-open joint; 411-locking cylinder; 412-support seat; 413-first clearance groove; 414-second clearance groove; 415-arc-shaped limiting groove; 416-support limiting groove; 5-rotating support bearing. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0041] This application can protect the winding roller 2 during operation by adjusting the drive stroke of the drive device. During operation, the structure is self-locking to prevent the winding roller 2 from moving outside the preset range, thereby improving the stability and reliability of the device.

[0042] This disclosure discloses an embodiment of a foil-making machine take-up roller device with a self-locking function, such as... Figure 1 , Figure 2 and Figure 3 As shown, the device includes a frame 1 and a take-up roller 2 slidably connected to the frame 1 at both ends. A locking device 4 is also provided on one side of the take-up roller 2 on the frame 1. The locking device 4 includes a support 401 mounted on the frame 1 and a jaw 402 hinged to the support 401. The fixed end of the jaw 402 is connected to a driving device via a linkage mechanism. The driving device, through the linkage mechanism, can move the jaw 402 closer to or further away from the take-up roller 2. When the jaw 402 is close to the take-up roller 2, it is in a locked state. Figure 1 A schematic diagram of a foil-making machine take-up roller device with self-locking function according to an embodiment of the present disclosure is shown in the locked state. At this time, the contact surface of the claw 402 is in contact with the end of the take-up roller 2. Figure 2 The diagram shows a structural schematic of a foil-making machine take-up roller device with self-locking function in an unlocked state according to an embodiment of the present disclosure. When the claw 402 is away from the take-up roller 2, it is in an unlocked state. At this time, the claw 402 is not in contact with the take-up roller 2.

[0043] Figure 3 A schematic diagram of the locking device in the locked state according to an embodiment of the present disclosure is shown, as follows. Figure 3 As shown, the linkage mechanism includes a rocker arm 408 and a connecting rod 406. The end of the support 401 furthest from the frame 1 is provided with a first clearance groove 413. One end of the rocker arm 408 is hinged within the first clearance groove 413, and the other end is hinged to the traction end of the drive device. The claw 402, hinged to one end of the support 401, is provided with a second clearance groove 414, through which the rocker arm 408 passes. One end of the connecting rod 406 is hinged to the side wall of the claw 402, and the other end is hinged to the side wall of the rocker arm 408.

[0044] The first clearance groove 413 and the second clearance groove 414 are both U-shaped groove structures. The first clearance groove 413 is hinged to the rocker arm 408 through a rocker arm pin 403; the second clearance groove 414 is hinged to the pawl 402 through a pawl pin 405. The outer wall of the first clearance groove 413 is provided with a limiting step. The side wall of the limiting step is used to hinge the pawl 402, and the protrusion is used to limit the rotational stroke of the pawl 402, preventing the pawl 402 from exceeding a preset rotation angle. It should be noted that the hinged end of the pawl 402 is spaced apart from the protrusion of the limiting step to provide a larger rotational stroke for the pawl 402 and prevent structural interference.

[0045] There are two connecting rods 406, which are symmetrically hinged to both sides of the swing arm 408. The connecting rods 406 have an L-shaped structure, and one end of the bent part of each of the two connecting rods 406 is hinged to the swing arm 408 through the same first connecting rod pin 407. The other end of the connecting rods 406 is hinged to the claws 402 through the second connecting rod pins 404. The symmetrical arrangement of the connecting rods 406 can provide more stable traction and support for the swing arm 408, so that the claws 402 can output downward pressure more stably when pressing down against the receiving roller 2.

[0046] The driving device includes a locking cylinder 411, which is connected to the frame 1 via a support base 412. The traction end of the locking cylinder 411 is provided with an open connector 410, which is hinged to a swing rod 408 via a traction pin 409. It should be noted that the stroke of the traction end of the locking cylinder 411 is controllable and can be set according to actual needs. The stroke of the locking cylinder 411 is precisely constrained by mechanical limits, sensor feedback, or hydraulic or pneumatic adjustment to ensure that the traction end operates within a specified range.

[0047] Both ends of the take-up roller 2 are provided with rotary support bearings 5, and the frame 1 is provided with guide rails 3 that are slidably connected to the rotary support bearings 5. Specifically, Figure 6 , Figure 7 and Figure 8 The diagram shows a cross-sectional view, a front view, and a side view of the jaw 402 according to an embodiment of this disclosure. The jaw 402 has an arc-shaped shell structure. An arc-shaped limiting groove 415 is provided on the side of the jaw 402 near the take-up roller 2. The inner cavity abutting surface of the arc-shaped limiting groove 415 is adapted to the structure of the rotary support bearing 5. The inner cavity abutting surface of the arc-shaped limiting groove 415 can limit the rotation of the rotary support bearing 5 to a preset position and prevent displacement.

[0048] The chuck 402 is made of high-strength steel, such as hot-formed steel, high-strength low-alloy steel, duplex steel, etc., which has higher strength and toughness.

[0049] like Figure 9 , Figure 10 and Figure 11 As shown, the support 401 has a support limiting groove 416 on its side wall near the take-up roller 2, and the support limiting groove 416 is adapted to the width of the rotary support bearing 5. The support 401 and the chuck 402 are made of the same high-strength steel. On the one hand, they work together with the chuck 402 to maintain the rotary support bearing 5 in a preset position. On the other hand, they prevent the rotary support bearing 5 from colliding with the support 401 and deforming during the locking process.

[0050] The specific process of the drive device pulling the chuck 402 is as follows:

[0051] When the drive device moves the traction claw 402 close to the take-up roller 2, the traction end of the locking cylinder 411 retracts, pulling the open connector 410 closer to the locking cylinder 411. The open connector 410 pulls the swing rod 408 to rotate around the swing rod pin 403. During the rotation, the swing rod 408 drives the connecting rod 406 connected to it to rotate. Simultaneously, the movement of the swing rod 408 and the connecting rod 406 drives the claw 402 to rotate around the claw pin 405. When the traction end of the locking cylinder 411 is fully retracted, the linkage mechanism is in the open state, until the drive device reaches its limit position. Figure 5 As shown.

[0052] When the drive device moves the traction claw 402 close to the take-up roller 2, the locking cylinder 411 extends, pushing the open connector 410 away from the locking cylinder 411. The open connector 410 pushes the swing rod 408 to rotate around the swing rod pin 403. During the rotation, the swing rod 408 drives the connecting rod 406 connected to it to rotate. Simultaneously, the swing rod 408 and connecting rod 406 move, causing the claw 402 to rotate around the claw pin 405. When the swing rod 408 and connecting rod 406 reach a straight line, the swing rod 408 contacts the second clearance groove 414, and the linkage mechanism reaches its dead position. The claw 402 is then fitted into a portion of the rotating support bearing 5, achieving a locked state. Figure 4 As shown. At this time, the chuck 402 plays a limiting protection role during the rotation of the take-up roller 2, preventing the risk of large-scale shaking and displacement of the take-up roller 2 due to external factors.

[0053] This application also provides a design method for a foil-making machine take-up roller device with a self-locking function, including the following steps:

[0054] Step S1: Based on the diameter of the rotary support bearing 5, preset the distance L2 between the pawl pin 405 and the second connecting rod pin 404, and preset the distance L1 between the rocker arm pin 403 and the pawl pin 405.

[0055] Step S2: Based on the limit formation of the locking device traction claw 402, set the constraint conditions for the dead point position and limit position of the locking device;

[0056] Step S3: Based on the distance lengths L1 and L2, and the constraints, establish the formula for solving the length of the locking device rod;

[0057] Step S4: Based on the formula for solving the length of the locking device rod, the distance L3 between the second connecting rod pin 404 and the first connecting rod pin 407, and the distance L4 between the swing rod pin 403 and the first connecting rod pin 407 are obtained. Based on the obtained distances L3 and L4, the locking device is constructed.

[0058] In this embodiment of the disclosure, the constraint conditions for the dead point position and the extreme position of the locking device include:

[0059] The limit position satisfies the following condition: when the chuck 402 is raised to the limit position, at least the take-up roller 2 can be removed;

[0060] The dead point position satisfies the following condition: when the chuck 402 descends to the dead point position, the gap between the take-up roller 2 and the chuck 402 is set.

[0061] In this embodiment of the disclosure, the formula for determining the length of the locking device rod includes:

[0062] Specifically, when the device is in the locked state, it can withstand a certain amount of external force impact without causing relative displacement between structures. Specifically, when the device is in the locked state, the swing rod 408 and connecting rod 406 move to a straight line, and the linkage mechanism moves to its dead center position. When the support bearing 5 causes relative displacement and impacts the pawl 402, no displacement occurs between the various components of the linkage mechanism. The locked state can only be released and switched to the unlocked state by the traction end of the locking cylinder 411.

[0063] Specifically, at the dead point position, the rocker arm 408 and the connecting rod 406 are collinear. At this time, the force exerted by the pawl 402 on the rocker arm 408 through the connecting rod 406 passes exactly through the rotation center of the rocker arm 408, and the rocker arm 408 cannot rotate. This position is considered the dead point position of the mechanism. In the right triangle formed by the rocker arm 408, the connecting rod 406, and the pawl 402, the following conditions are met:

[0064] ;

[0065] When in the extreme position, when the pawl 402 and the connecting rod 406 move to a collinear position, the pawl 402 reaches the boundary position of its swing range. At this time, the mechanism is in the extreme position. In the triangle formed by the swing rod 408, the connecting rod 406, and the pawl 402, using the triangle cosine theorem, the links at this time satisfy:

[0066] ;

[0067] In the formula, L1 is the distance between the rocker arm pin 403 and the pawl pin 405, L2 is the distance between the pawl pin 405 and the second link pin 404, L3 is the distance between the second link pin 404 and the first link pin 407, L4 is the distance between the rocker arm pin 403 and the first link pin 407, α is the angle between the rocker arm 408 and L1 when the linkage mechanism is in its extreme position, and α ≥ the opening angle of the pawl 402 when the pawl 402 is raised to its extreme position.

[0068] In this embodiment, the distance L1 between the rocker arm pin 403 and the chuck pin 405 is set to 50 mm, the distance L2 between the chuck pin 405 and the second connecting rod pin 404 is set to 40 mm, and the angle α between the rocker arm 408 and L1 at the limit position of the linkage mechanism is 65.3°. Therefore, the distance L3 between the second connecting rod pin 404 and the first connecting rod pin 407 is approximately 70 mm, and the distance L4 between the rocker arm pin 403 and the first connecting rod pin 407 is approximately 100 mm. It should be noted that in this embodiment, the distances L3 and L4 are rounded up for easier design of the actual structure.

[0069] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

Claims

1. A foil-making machine winding roller device with self-locking function, characterized in that, The device includes a frame (1) and a take-up roller (2) that is slidably connected to the frame (1) at both ends. The frame (1) is also provided with a locking device (4) located on one side of the take-up roller (2). The locking device (4) includes a support (401) provided on the frame (1) and a claw (402) hinged to the support (401). The fixed end of the claw (402) is connected to a driving device through a linkage mechanism. The driving device can make the claw (402) move closer to or away from the take-up roller (2) through the linkage mechanism. The linkage mechanism includes a rocker arm (408) and a connecting rod (406). The end of the support (401) is also provided with a first clearance groove (413). One end of the rocker arm (408) is hinged in the first clearance groove (413), and the other end is hinged to the traction end of the drive device. The claw (402) is hinged to one end of the support (401) and is provided with a second clearance groove (414). The rocker arm (408) passes through the second clearance groove (414). The first clearance groove (413) and the second clearance groove (414) are both U-shaped groove structures. The rocker arm (408) passes through the first clearance groove (413) through the rocker arm pin (403). The pawl (402) is hinged to the second clearance groove (414) through the pawl pin (405). The connecting rod (406) is symmetrically hinged to both sides of the swing rod (408). The connecting rod (406) has an L-shaped structure, and the bent ends of the symmetrically arranged connecting rods (406) are all hinged to the swing rod (408) through the same first connecting rod pin (407). The other ends of the connecting rods (406) are respectively hinged to the second relief groove (414) through the second connecting rod pin (404).

2. The foil-making machine winding roller device with self-locking function according to claim 1, characterized in that, The driving device includes a locking cylinder (411), which is connected to the frame (1) via a support base (412). The locking cylinder (411) has an open connector (410) at its traction end, which is hinged to the swing rod (408) via a traction pin (409).

3. The foil-making machine winding roller device with self-locking function according to claim 1, characterized in that, The winding roller (2) is provided with a rotary support bearing (5) at its end, and the top of the frame (1) is provided with a guide rail (3) that is slidably connected to the rotary support bearing (5).

4. The foil-making machine winding roller device with self-locking function according to claim 1, characterized in that, The claw (402) has an arc-shaped shell structure. A limiting groove (415) is provided on the side of the claw (402) near the winding roller (2). The inner cavity of the limiting groove (415) is adapted to the structure of the rotating support bearing (5).

5. The foil-making machine winding roller device with self-locking function according to claim 1, characterized in that, The support (401) has a support limiting groove (416) on its side wall near the take-up roller (2), and the support limiting groove (416) is adapted to the width of the rotary support bearing (5).

6. A design method for a foil-making machine take-up roller device with a self-locking function, characterized in that, A foil-making machine winding roller device with self-locking function according to any one of claims 1-5 includes the following steps: Step S1: Based on the diameter of the rotary support bearing (5), preset the distance L2 between the pawl pin (405) and the second connecting rod pin (404), and preset the distance L1 between the rocker arm pin (403) and the pawl pin (405); Step S2: Based on the limit stroke of the locking device traction claw (402), set the constraint conditions for the dead point position and the limit position of the locking device; Step S3: Based on the distance lengths L1 and L2, and the constraints, establish the formula for solving the length of the locking device rod; Step S4: Based on the formula for solving the length of the locking device rod, the distance L3 between the second connecting rod pin (404) and the first connecting rod pin (407), and the distance L4 between the swing rod pin (403) and the first connecting rod pin (407) are obtained. Based on the distance L3 and the distance L4, the locking device is constructed.

7. The design method of the foil-making machine winding roller device with self-locking function according to claim 6, characterized in that, The constraints on the dead point and extreme positions of the locking device include: The limit position satisfies the following condition: when the chuck (402) is raised to the limit position, at least the take-up roller (2) can be removed. The dead point position satisfies the following condition: when the chuck (402) descends to the dead point position, the gap between the take-up roller (2) and the chuck (402) is set.

8. The design method of the foil-making machine winding roller device with self-locking function according to claim 7, characterized in that, The formula for determining the length of the locking device rod includes: ； ； In the formula, L1 is the distance between the rocker arm pin (403) and the pawl pin (405), L2 is the distance between the pawl pin (405) and the second link pin (404), L3 is the distance between the second link pin (404) and the first link pin (407), L4 is the distance between the rocker arm pin (403) and the first link pin (407), α is the angle between the rocker arm (408) and L1 when the linkage mechanism is in its extreme position, and α ≥ the opening angle of the pawl (402) when the pawl (402) is raised to its extreme position.

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