JP6084189B2 - Positioning mechanism of electrode plate transfer device - Google Patents

Description

  The present invention relates to a positioning mechanism for an electrode plate transport device, and more specifically, operates a guide rod that moves up and down in order to guide the electrode plate transport device to a predetermined position in an electrolytic cell, and improves safety. The present invention relates to a positioning mechanism of an electrode plate transport device.

  Electrorefining of metals such as copper and zinc is carried out by using a plurality of (usually about 20 to 60 in the case of Cu) cathode plates (cathode plates) and ear-type anodes (anodes) in an electrolytic cell in which an electrolytic solution is stored. Plate) are alternately immersed in parallel, and a voltage is applied. Then, the loading, lifting and transport of these electrode plates into the electrolytic cell are carried out by hooking and supporting them with hooks provided on the tip end side of the rod of the electrode plate transport device. That is, a plurality of pairs of anode hooks for supporting the anode plate and a pair of cathode hooks for supporting the cathode plate are installed in the suspension frame in the electrode plate transport device, and an electrode in which a large number of electrode plates are suspended. The plate conveying device is moved horizontally to the upper part of the electrolytic cell by a moving device such as an overhead crane, and the electrode plate is inserted into or raised to the predetermined position of the electrolytic cell by raising and lowering the hanging frame of the electrode plate conveying device at a predetermined position. Is done. The cathode plate that has been electrolyzed is inserted into the conveyor of the stripper receiving port, and the electrodeposited metal is stripped from the surface. Then, the stripped cathode plate is transported from the conveyor at the stripper carry-out port by the electrode plate transport device, and is again inserted into the electrolytic cell for electrolytic purification.

  As an example of the electrode plate conveying apparatus described above, there is one disclosed in Patent Document 1, for example. The electrode plate transport device of Patent Document 1 will be described. As shown in FIG. 5, the electrode plate transport device 1 includes a suspension frame 2, and the suspension frame 2 includes an electrode plate and a plurality of electrode plates P in order to suspend. The same number of paired hooks 2a are attached. The suspension frame 2 is suspended by an overhead crane (not shown) via a wire W, and the electrode plate transport device 1 can be moved to the electrolytic cell 100 by appropriately moving the overhead crane. And the electrode plate conveying apparatus 1 conveyed to the upper position of the electrolytic cell 100 raises or lowers the suspension frame 2 by winding up or winding the wire W by a winding device (not shown), thereby bringing the electrode plate P into the electrolytic cell. The battery 100 is charged or extracted from the electrolytic cell 100.

  However, it is extremely difficult to position the electrode plate transport device 1 at a predetermined place where the electrode plates P are to be arranged in the electrolytic cell 100 only by the movement control of the overhead crane, and also due to the movement by the overhead crane. Prevention of shaking of the suspension frame 2, prevention of damage due to collision between the electrode plate P and the electrolytic cell 100 that occurs when the electrode plate P is inserted into the electrolytic cell 100, and positioning of the suspension frame 2 with respect to the electrolytic cell 100 with higher accuracy In order to achieve this, the electrode plate transport apparatus 1 is provided with a positioning guide 10 constituting a positioning mechanism. When the electrode plate transport device 1 has been transported to a predetermined electrolytic cell 100 position, the positioning guide 10 is engaged with a positioning pin 101 provided in the electrolytic cell 100 for accurate positioning and suspended. The frame 2 is also configured to function as a swing stopper.

  In other words, the positioning guide 10 includes slide bearings 3 that are provided at both ends in the longitudinal direction of the suspension frame 2 and slidably support an elongated rod-shaped guide rod 11. A stopper 13 is provided at the upper end of the guide rod 11 so that the guide rod 11 does not fall off the slide bearing 3. As shown in FIG. 6, a positioning member 12 is disposed at the lower end of the guide rod 11, and a conical recess 14 is formed at the lower end of the positioning member 12.

  On the other hand, as shown in FIG. 5, a convex positioning pin 101 is arranged on the upper surface of the side wall of the electrolytic cell 100, and the concave portion 14 of the positioning member 12 is convexly positioned when the suspension frame 2 is lowered. The pin 101 is fitted. Thereby, the electrode plate conveying apparatus 1 can position the suspension frame 2 with higher accuracy with respect to the electrolytic cell 100 and can also stop the suspension frame 2 from shaking. In this state, the electrode plate P is inserted into or extracted from the electrolytic cell 100.

  However, in the conventional positioning mechanism described above, the positioning guide 10 is not provided with a drive mechanism, and the guide rod 11 is suspended from the suspension frame 2 in a state in which the guide rod 11 can freely slide with respect to the slide bearing 3. It was necessary to move the electrode transport device 1 with the suspension frame 2 raised to a height at which the lower end portion of the guide rod 11 does not collide with the electrolytic cell 100 or other equipment.

  Therefore, Patent Document 2 discloses a positioning guide that can stop the guide rod 11 at a predetermined height and thereby move the suspension frame 2 at an arbitrary height. This positioning guide is shown in FIGS. The illustrated positioning guides 10 are arranged at both ends in the longitudinal direction of the suspension frame 2, and a guide rod 11 (“pin guide 11” in Patent Document 2) is arranged to be movable in the vertical direction by the slide bearing 3. Yes.

  The guide rod 11 is an elongated pipe-like member, the upper end is sealed by a stopper cover 15, and the positioning member 12 is attached to the lower end. The positioning member 12 has a concave portion 14 that opens downward in a conical shape at a lower end portion, and an inverted V-shaped groove 16 that extends in a direction perpendicular to the axis at the tip of the concave portion 14. The concave portion 14 can be fitted into a conical convex member 101 installed on the electrolytic cell 100 side.

  A rack member 18 having a rack gear 17 formed over a predetermined length along the longitudinal axis is integrally attached to the guide rod 11 (see FIG. 6). A driving device 20 is disposed for meshing with the rack gear 17 and driving the positioning guide 10. The drive device 20 includes an electric motor 21 and a speed reducer 22 as drive sources (see FIG. 7). An output shaft 23 from the speed reducer 22 extends in the horizontal direction, and the tip thereof is installed on the frame frame 31. Is supported by the bearing 24. The output shaft 23 includes a pinion gear device 26 that includes a pinion gear 25 that meshes with the rack gear 17, and a latch device 40 that serves as a one-way rotational force transmission unit that transmits only one-way rotational force to the pinion gear device 26. Has been placed.

  As shown in FIG. 7, the output shaft 23 is integrally provided with a flange 41 constituting a drive member at a position adjacent to the speed reducer 22, and the flange 41 and the bearing 24 are coaxially arranged on the outer periphery of the output shaft 23. A sleeve 42 is rotatably disposed between the two. A ratchet gear 44 as a driven member is integrally attached by a bolt 43 to one end of the sleeve 42, that is, the end portion facing the flange 41. A flange 47 is rotatably disposed at a position of the sleeve 42 facing the ratchet gear 44, and a pinion gear 25 is disposed at the other end of the sleeve 42 and is integrally attached by a bolt 27. A claw member 45 that meshes with the ratchet gear 44 and transmits a one-way rotational force to the ratchet gear 44 is disposed on the flange 41 via a mounting shaft 46 so as to be swingable. The claw member 45 is always pressed toward the ratchet gear 44 by a biasing means (not shown).

  With the configuration as described above, the claw member 45 meshes with the ratchet gear 44 to transmit the rotational force, and the guide rod 11 can be appropriately raised and held at a predetermined height position. When the member 12 starts to be fitted to the convex member 101 installed on the electrolytic cell 100 side, the claw member 45 slips without meshing with the ratchet gear 44, so that the suspension frame 2 is relative to the guide rod 11. Thus, it is allowed to descend downward.

Japanese Patent Application Laid-Open No. 09-249985 JP 2002-348695 A

  However, when the operation of the guide rod 11 is based on the meshing by the ratchet mechanism as described above and the release thereof as in Patent Document 2, the ratchet mechanism functions by meshing the claw member 45 and the ratchet gear 44. Therefore, when the ratchet gear 44 starts to rotate, the ratchet gear 44 and the claw member 45 may be instantaneously separated. As a result, when the claw member 45 and the ratchet gear 44 are not properly meshed for some reason, the guide rod 11 may be in a free state and suddenly fall without resistance. Although the stopper 13 for preventing the fall is attached to the upper end of the guide rod 11, if it falls without any resistance, the guide rod 11 cannot be stopped by the stopper 13 and falls to the ground. Is also possible. Should such a situation occur, the dropped guide rod 11 may not only damage the electrode plate P, the electrolytic cell 100, and other equipment, but also put the operator at risk. Become.

  Therefore, in view of the above-mentioned problems, the present invention operates the guide rod reliably while maintaining the function of raising the guide rod and holding it at a predetermined height position, and does not cause a natural fall. It aims at providing the positioning mechanism of a high electrode plate conveyance apparatus.

  In order to solve the above-mentioned problem, the present invention according to claim 1 is directed to an electrode for positioning and arranging an electrode plate conveying device provided with a suspension frame for suspending and supporting a number of electrode plates at a predetermined position above the electrolytic cell. In the positioning mechanism of the plate conveying device, the driving mechanism includes a long guide rod disposed at both ends of the suspension frame, or a drive mechanism that moves the guide rod up and down relatively with respect to the suspension frame. The guide rod is raised and stopped via the cam clutch, and the suspension frame can be lowered by its own weight with respect to the guide rod in contact with a predetermined position of the electrolytic cell.

  In order to solve the above-mentioned problem, the present invention according to claim 2 is the positioning mechanism of the electrode plate transport device according to claim 1, wherein the cam clutch includes an inner ring, an outer ring disposed coaxially with the inner ring, Provided with a plurality of cams arranged between the inner ring and the outer ring to cause meshing of both wheels and idle rotation, when the guide rod is raised, the cam is rotated by rotating the inner ring or the outer ring in the direction in which the cam is engaged with the inner ring and the outer ring. When the clutch is engaged and the guide rod is lowered, the engagement of the cam is released and the inner or outer ring rotates in the direction in which the inner ring and the outer ring idle so that the cam clutch is in a half-clutch state and the guide rod is electrolyzed. When the suspension frame is lowered by its own weight with respect to the guide rod while being in contact with a predetermined position of the tank, the cam clutch is half-cut by stopping the rotation of the inner ring or the outer ring. Characterized by a pitch state.

  According to the positioning mechanism of the electrode plate transport device according to the present invention, the cam is always in contact with the outer ring and the inner ring, not the mechanical disengagement mechanism such as the ratchet mechanism by meshing the claw member and the ratchet gear. Since the cam clutch is used, the guide rod may slide down slowly due to the decrease in frictional force between the cam, outer ring and inner ring, so there is no risk of natural fall without any resistance. The effect is high.

  Further, according to the positioning mechanism of the electrode plate transport device according to the present invention, when the frictional force between the cam, the outer ring and the inner ring is reduced, the guide rod gently slides down, so that it is possible to determine the work period such as replacement or repair. There is an effect that it is easy.

It is a block diagram which shows one Embodiment of the positioning mechanism of the electrode plate conveying apparatus which concerns on this invention. It is a partial cross section perspective view which shows an example of a cam clutch. (A)-(e) is a perspective view which shows each component of a cam clutch. (A), (b) is a figure explaining operation | movement of a cam clutch. It is a perspective view which shows the conventional electrode plate conveying apparatus. It is a partial cross section front view which shows the conventional positioning guide provided with the ratchet mechanism. It is sectional drawing of the AA line of FIG.

[Configuration of positioning mechanism of electrode plate transport device]
A preferred embodiment of a positioning mechanism of an electrode plate transport device according to the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram showing an embodiment of a positioning mechanism of an electrode plate transport device according to the present invention. As shown in FIG. 1, a positioning mechanism (hereinafter simply referred to as “positioning mechanism”) 5 of an electrode plate transport apparatus is roughly a motor 21, a speed reducer 22 using the motor 21 as a drive source, and a speed reducer 22. A pulley 22b attached to the output shaft 22a, a pulley 6b arranged in the same row as the pulley 22b, a belt 7 bridged between the pulley 22b and the pulley 6b, and a pulley 6b. The cam clutch 6 to which the input shaft 6 a is connected, the bearings 8 a and 8 b that support the rotary shaft 9 that is connected to the output shaft 6 c of the cam clutch 6, and the rotational force of the rotary shaft 9 that is attached to the rotary shaft 9. A pinion gear 25 that transmits to the rack gear 17 attached to the guide rod 11 is provided. A changeover switch 30 is provided for appropriately switching the operation of the motor 21.

  The cam clutch 6 transmits the output from the speed reducer 22 to the guide rod 11 to raise and stop the guide rod 11, shuts off the output of the speed reducer 22, and causes the suspension frame 2 to move against the guide rod 11 by its own weight. Operate to descend. In other words, when the cam clutch 6 is effective, the driving force of the speed reducer 22 is transmitted to the rack gear 17, while when the cam clutch 6 is in a so-called half-clutch state, the guide rod 11 is lowered by its own weight. Let The rotation direction of the motor 21 is switched by the changeover switch 30 to the direction in which the guide rod 11 is raised and the direction to be lowered.

[Detailed configuration of cam clutch]
As the cam clutch 6, for example, a cam clutch manufactured by Tsubaki E & M Co. can be used. FIG. 2 is a partially sectional perspective view showing an example of the cam clutch 6, and FIGS. 3A to 3E are perspective views showing respective components of the cam clutch 6. As shown in FIG. 2, the cam clutch 6 includes a substantially cylindrical inner ring 60 (FIG. 3A) having a large-diameter portion at the center and a step, and the front and rear portions that are externally fitted to the step portion of the inner ring 60. Two bearings 61, 61 (FIG. 3 (b)), two ring-shaped springs 62, 62 (FIG. 3 (c)) fitted on the inner ring 60 between the two bearings 61, 61, two A plurality of cams 63, 63 (Fig. 3 (Fig. 3)) are arranged so as to be sandwiched between two bearings 61, 61, and arranged so as to be in contact with an inner ring 60 and an outer ring 64 described later by two springs 62, 62. d)) and a cylindrical outer ring 64 (FIG. 3 (e)) in which an inner ring 60, bearings 61, 61 and cams 63, 63 are internally provided. In this embodiment, as shown in FIG. 1, the outer ring 64 is connected to the rotating shaft 9 via the output shaft 6c, and the inner ring 60 is connected to the pulley 6b via the input shaft 6a. It can also be attached to.

  The surface of the inner ring 60 and the inner peripheral surface of the outer ring 64 are the raceways of the cam 63, and have a hardness and a hardened layer sufficient to withstand the compressive stress acting when engaged with the cam 63 and sliding wear during idling. Secured and precision ground into a true cylinder. A plurality of cams 63, 63 are regularly arranged between the inner ring 60 and the outer ring 64 so that the cams 63, 63 are connected or slipped according to the relative rotational direction of the inner ring 60 and the outer ring 64. It has become. By this action, the inner ring 60 and the outer ring 64 of the cam clutch 6 are engaged and idled. The cams 63, 63 have a roof shape on the upper surface side (outer ring 64 side) and a substantially semicircular shape on the lower surface side (inner ring 60 side).

  The bearings 61 and 61 support the concentricity of the inner ring 60 and the outer ring 64 and a radial load. In particular, the concentricity is maintained so that when the cam clutch 6 is engaged, all the cams 63, 63 are engaged at the same time and with an equal load sharing. Further, as shown in FIG. 4B, the springs 62, 62 are arranged in a compressed state at both ends of the cam 63, and all the cams 63, 63 are always attached to the inner ring 60 and the outer ring 64. I try to make contact.

[Operation of drive mechanism (cam clutch)]
4A and 4B are diagrams for explaining the operation of the cam clutch. As shown in FIG. 4A, the cams 63 and 63 are in contact with the inner ring 60 and the outer ring 64 at two points A and B. The points A and B keep a constant angle θ (θ: strut angle) with the center line OO ′ of the inner ring 60 and the outer ring 64 as shown in FIG. The springs 62, 62 are disposed in the stepped portions 63a at both ends of the cams 63, 63 in a compressed state, and make the cams 63, 63 lightly contact the inner ring 60 and the outer ring 64.

Next, idling (clutch release) and engagement (clutch coupling) of the cam clutch 6 will be described with reference to FIG.
[When idling (clutch released)]
First, when the outer ring 64 is rotated in the R direction or the inner ring 60 is rotated in the L ′ direction, the cam 63 is in a direction in which the connection state at the point A that is a contact point with the outer ring 64 and the point B that is a contact point with the inner ring 60 is released. Tilt. Accordingly, since the outer ring 64 and the inner ring 60 can freely rotate with each other, the rotation is not transmitted to the inner ring 60 or the outer ring 64. This state is “idle”.

[When meshing (clutch engagement)]
On the other hand, when the outer ring 64 is rotated in the L direction or the inner ring 60 is rotated in the R ′ direction, the cam 63 is firmly attached to the inner ring 60 and the outer ring 64 at a point A that is a contact point between the outer ring 64 and a point B that is a contact point between the inner ring 60. It will be in a clamped state. Therefore, the outer ring 64, the cam 63, and the inner ring 60 are integrated, that is, in a “connected state”, and power is transmitted from the drive machine side to the driven machine side. This state is “meshing”. A large number of cams 63, 63 arranged on the raceway surfaces of the inner ring 60 and the outer ring 64 are instantaneously meshed with equal load sharing by the action of the springs 62, 62.

[Positioning mechanism operation]
Next, the operation of the positioning mechanism 5 will be described. First, the case where the guide rod 11 is raised or lowered will be described. When the guide rod 11 is raised or lowered, the selector switch 30 selects either raising or lowering the guide rod 11. In this case, the rotation directions of the motors 21 are opposite to each other, but the motor 21 is rotationally driven in accordance with the rotation direction of the motor 21, and the rotation speed is reduced to a predetermined rotation speed by the speed reducer 22. The rotation of the speed reducer 22 from the output shaft 22a is transmitted to the input shaft 6a connected to the inner ring 60 of the cam clutch 6 through the pulley 22b, the belt 7 and the pulley 6b. When the guide rod 11 is raised, the inner ring 60 receives the rotation of the motor 21 and rotates in the R ′ direction shown in FIG. 4A, and the outer ring 64 of the cam clutch 6 is relatively moved relative to FIG. As shown in FIG. 4B, a moment acts on the cam 63 in the F direction, and the inner ring 60 and the outer ring 64 are engaged with each other so that the inner ring 60, the cam 63, and the outer ring 64 are engaged. These three rotate together in the same direction. As a result, the rotational force of the pulley 22b is transmitted to the rotary shaft 9 via the cam clutch 6, and further transmitted from the pinion gear 25 to the rack gear 17, thereby raising the guide rod 11.

  On the other hand, when the guide rod 11 is lowered, the inner ring 60 receives the rotation of the motor 21 by the changeover switch 30 and rotates in the L ′ direction shown in FIG. 4A, and the outer ring 64 of the cam clutch 6 is relatively illustrated. 4 (a), the cam 63 enters a state where the moment in the F direction shown in FIG. 4 (b) is weakened. However, since the outer ring 64 is connected to the guide rod 11 and is rotated in the L direction shown in FIG. 4A by the weight of the guide rod 11, the outer ring 64 is not completely idled while the guide rod 11 is lowered. That is, due to the positional relationship of the cam 63 between the inner ring 60 and the outer ring 64 at the time of lowering, the mesh is completely engaged or the engagement is weakened, and a half-clutch state is obtained. As a result, although the guide rod 11 falls due to its own weight, the guide rod 11 can be controlled to be lower than the rotational speed of the inner ring 60 of the cam 63 that rotates by receiving the transmission power from the motor 21 and can be lowered. That is, when the rotation speed in the L direction of the outer ring 64 connected to the guide rod 11 is V1, and the rotation speed in the L ′ direction of the inner ring 60 that rotates by receiving the power of the motor 21 is V2, the state of V1 <V2 Then, the moment of the cam 63 in the direction F shown in FIG. 4B is weakened and the cam 63 descends in a half-clutch state. Conversely, when the state of V1> V2 is established, the cam 63 shown in FIG. The moment in the direction is increased, and the cam 63 is completely engaged. Therefore, although the guide rod 11 falls by its own weight, the guide rod 11 can be controlled to be lower than the rotational speed of the inner ring 60 that rotates by receiving the transmission power from the motor 21 and can be lowered.

  Next, a case where the suspension frame 2 is further lowered in a state where the recess 14 of the positioning member 12 of the guide rod 11 is fitted to the convex positioning pin 101 and the suspension frame 2 is positioned will be described. When the concave portion 14 of the positioning member 12 is fitted to the convex positioning pin 101 and the suspension frame 2 is positioned, the operator stops the motor 21 with the changeover switch 30 and rotates the motor 21 with a brake (not shown). Stop. Thereby, the inner ring 60 is stopped and the cam 63 fixed to the inner ring 60 is not rotated. As a result, the cam 63 that has been in the half-clutch state comes into contact with the outer ring 64, and the frictional force between the cam 63 and the outer ring 64 does not allow the guide rod 11 to fall naturally, but much more than the guide rod 11. The outer ring 64 is allowed to rotate in the R direction due to the weight of the heavy suspension frame 2 (half-clutch state). As a result, the suspension frame 2 is lowered by its own weight, and the guide rod 11 is relatively raised. In this case, as the guide rod 11 is raised, the pinion gear 25 is rotated via the rack gear 17, and the rotation further rotates the rotating shaft 9. However, the cam clutch 6 is in a half-clutch state. The rotation of the rotating shaft 9 is not transmitted to the output shaft 6c of the pulley 6b. When the suspension frame 2 is lowered relative to the positioned guide rod 11, the motor 21 may be rotationally driven in the direction in which the guide rod 11 is raised, or the brake device of the motor 21 is released. You may do it. When the connection between the outer ring 64 and the inner ring 60 and the rotating shaft 9 and the input shaft 6a is reversed, the above operations are reversed.

[Effect of the embodiment]
As described above, according to the positioning mechanism of the electrode plate transport device according to the present embodiment, the cam clutch 6 is not a mechanical disengagement mechanism such as a conventional ratchet mechanism by meshing the pawl member and the ratchet gear. Is used as a drive mechanism, so that the guide rod 11 may slip gently due to a decrease in frictional force between the cam 63, the outer ring 64, and the inner ring 60, but there is no risk of natural fall without any resistance. There is an effect that safety is high compared to.

  Further, according to the positioning mechanism of the electrode plate conveying apparatus according to the present invention, when the frictional force between the cam 63, the outer ring 64, and the inner ring 60 is lowered, the guide rod 11 slides gently, so that the work timing such as refurbishment It is easy to identify.

  As described above, the preferred embodiment of the present invention has been described in detail. However, the present invention is not limited to the specific embodiment, and within the scope of the gist of the present invention described in the claims, Needless to say, various modifications and changes are possible. For example, the cam clutch 6 is not limited to the illustrated structure, and may have any structure as long as the same function can be exhibited.

DESCRIPTION OF SYMBOLS 1 Electrode plate conveying apparatus 2 Hanging frame 5 Positioning mechanism 6 Drive mechanism (cam clutch)
6a Input shaft 6b Pulley 6c Output shaft 7 Belt 8a, 8b Bearing 9 Rotating shaft 10 Positioning guide 11 Guide rod 17 Rack gear 20 Drive device 21 Electric motor 22 Reducer 22a Output shaft 22b Pulley 25 Pinion gear 30 Changeover switch 60 Inner ring 61 Bearing 62 Spring 63 Cam 64 Outer ring

Claims (2)

In the positioning mechanism of the electrode plate conveying device for positioning and arranging the electrode plate conveying device provided with a suspension frame for hanging and supporting a large number of electrode plates at a predetermined position above the electrolytic cell,
A long guide rod disposed at either or both ends of the suspension frame;
A drive mechanism for moving the guide rod up and down relatively with respect to the suspension frame;
With
The drive mechanism is configured to raise and stop the guide rod via a cam clutch and to lower the suspension frame by its own weight with respect to the guide rod that is in contact with a predetermined position of the electrolytic cell. A positioning structure for an electrode plate conveying device. In the positioning mechanism of the electrode plate transport apparatus according to claim 1,
The cam clutch includes an inner ring, an outer ring disposed coaxially with the inner ring, and a plurality of cams disposed between the inner ring and the outer ring to cause meshing and idling of both wheels,
When raising the guide rod, the cam ring is engaged with the inner ring or the outer ring by rotating the inner ring or the outer ring in a direction in which the cam engages the inner ring and the outer ring.
When lowering the guide rod, the cam is disengaged and the inner ring or the outer ring is rotated in the direction in which the inner ring and the outer ring are idled to bring the cam clutch into a half-clutch state.
When the suspension frame is lowered by its own weight with respect to the guide rod while the guide rod is in contact with a predetermined position of the electrolytic cell, the cam clutch is stopped by stopping the rotation of the inner ring or the outer ring. A half-clutch state,
A positioning structure for an electrode plate conveying device.

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