JP3102283U - Lifting device with tilting mechanism for coating containers - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a basket (container) accommodating an object to be coated sufficiently and stably tilted in a processing tank having a compact configuration with a relatively simple configuration at the time of coating processing. I do.
SOLUTION: An elevating device 10 with a tilting mechanism for a coating container is configured to include an elevating mechanism 40 for elevating and lowering a container 30 accommodating an object to be coated. One end portion is rotatably connected to the container 30 at a predetermined position separated from the left and right with respect to the vertical line of the center of gravity of the container 30 containing the object to be coated, and the other end portion is moved up and down. A rotating link 61 rotatably connected to the mechanism 40 for suspending the container 30 from the lifting mechanism 40 with both arms; and a rotating link 61 provided on the container 30 to move the other end of the rotating link 61 in the direction of the center of gravity. And a rotation restricting means 65 for restricting the rotation.
[Selection diagram] Fig. 1

Description

  The present invention relates to a lifting device with a tilting mechanism for a coating container. For details, when immersing various materials in automobiles, home appliances, buildings, etc. in a treatment tank for painting and painting, the lifting and lowering with a tilting mechanism of the painting container for tilting the container containing the object to be painted at each processing Equipment related.

In general, electrostatic coating, electrodeposition coating, and the like are well known as methods for coating various materials in automobile parts, home appliances, buildings, and the like. In the former, an object to be coated is set in the apparatus, and the sprayed paint is attached to the object to be coated by utilizing an electrostatic attraction effect of a high voltage. In the latter, a low-concentration aqueous paint is stored in an electrodeposition tank, a direct-current voltage is applied, and an object to be coated is settled in this, so that the ionized paint is attached.
Among these, the equipment for electrodeposition coating, which is considered to have a particularly high anticorrosion effect after painting and is often used for undercoating such as automobile frames and molded parts, is described in detail. Are arranged in accordance with the order of the steps, and a monorail that connects the processing tanks in order is bridged directly above this. Further, a lifting device for painting is suspended from the monorail. This elevating device is equipped with a transport mechanism composed of a self-propelled motor, etc., and an elevating mechanism for immersing the object to be coated in the processing tank. It is immersed in the tank. More specifically, a basket (container) for treating a large amount of objects to be coated at one time is connected to the above-mentioned elevating mechanism in the elevating device, and the basket is immersed by an elevating operation using a hoist or the like. . Then, the dipped object to be coated is pulled up together with the basket and moved to the next processing tank. At this time, depending on the shape of the object to be coated, the processing liquid in the processing tank may be scooped up and stored when being pulled up from the processing tank. As described above, when the treatment liquid in the pretreatment tank is conveyed into the next treatment tank in a state of being stored, the next treatment liquid may be diluted or contaminated by mixing.

In view of the above problem, for example, as disclosed in Patent Document 1 below, by operating left and right hoists for suspending the basket and swinging the basket, the processing liquid accumulated in the object to be coated is removed. Some are designed to be dripped. According to this disclosure, a frame that tilts with the basket is interposed above the basket, and the length of the wire from the left and right hoists to the hook (engaged with the frame) is shortened, so that the wire can be moved up and down or transported. It was possible to suppress the large swing of the basket at the time. In other forms, the rigid member is connected to the basket, and the basket is forcibly tilted, so that a sufficient tilt angle can be given to the basket and the basket can be controlled so as not to swing more than necessary. Was.
JP-A-1-172596

  However, in the above-described conventional technique, for example, even when a frame that tilts with the basket is interposed, the tiltable angle is limited to a position where the center of gravity of the basket that stores the object to be coated is balanced. As a result, a sufficient tilt angle could not be obtained. That is, for the sake of simplicity, the case where the upper side (left and right) of the basket is engaged with the hook will be described. The tilt angle up to a position where the center of gravity is balanced when one end of the basket is cantilevered is the maximum tilt angle. Is done. Therefore, for example, if the basket shape is made horizontally long so that a large tilt angle can be obtained, the width and depth of the processing tank need to be wastefully used. On the contrary, if it is formed short, a large tilt angle cannot be obtained due to the geometric relationship between the tilt center and the center of gravity. On the other hand, when the lower sides of the baskets are engaged with the hooks, the baskets are overturned (reversed) before reaching the maximum tilting angle, and the supporting state of the baskets becomes poor as the tilting angles increase. Since it is difficult to stop at a desired tilt angle because of the stability, it is difficult to perform swing adjustment stably.

Further, in a system in which a forcible tilt angle is imparted to the basket by the rigid member, a sufficient tilt angle is obtained, but the mechanism is large-scale and complicated. In addition, the initial cost and the like also increase. Such a large-scale mechanism is not suitable for transporting an object to be processed to each processing tank, and is poor in versatility. Further, regarding the behavior of the basket at the time of tilting, the tilting center at the time of tilting is disposed at a position away from the basket, and by giving a tilting angle to such a tilting center position, the basket is simultaneously moved horizontally. The amount of displacement in the direction is also large. For this reason, there is a possibility that the basket may collide with the wall surface of the processing tank to cause deformation. Therefore, expanding the processing tank in order to cope with this wastes the processing liquid.
In addition, in addition to the above-described ones, for example, there is a processing tank provided with a basket tilting mechanism in the processing tank. However, in this case, efficient swinging can be performed by rotating the basket substantially around the axis. However, by incorporating such a large-scale mechanism, the size of the processing tank is increased, and the processing solution is increased. Is also required in large quantities, which is not preferable.

  Therefore, in the conventional technology, there is no device capable of tilting the basket sufficiently and stably in a space-saving manner, and a proposal is made of a lifting device for painting having such performance. In particular, in recent years, automobile parts and the like to be subjected to such a painting process are improved in collision safety, and the number of parts and the number of work steps are reduced by integrally forming the joints of each node as much as possible. That is often done. Along with this, the shape of the structure (object to be coated) is often a complicated one in which each part is complicated. For this reason, air bubbles are trapped or voids are formed in the bag-shaped closed part of the object to be coated during immersion, and the object to be coated scoops up the processing liquid during pulling up, or collects due to dripping, resulting in poor coating. More often.

  The present invention has been conceived to solve the above-mentioned problems, and the problem to be solved by the present invention is to provide a basket (container) for accommodating an object to be coated sufficiently and stably during a coating process. The object of the present invention is to make it possible to perform the tilting with a relatively simple configuration in a processing tank having a compact configuration.

In order to solve the above problems, the lifting device with a tilting mechanism for a coating container of the present invention employs the following means.
First, a first invention of the present invention is configured to include an elevating mechanism for elevating and lowering a container accommodating an object to be coated, and a tilting mechanism of a coating container for tilting the container in or above the processing tank. A lifting device, one end of which is rotatably connected to the container at a predetermined position separated from the left and right with respect to the vertical line of the center of gravity of the container containing the object to be coated, and the other end of which is connected to the lifting mechanism. A rotation link, which is rotatably connected to each other and suspends the container from the lifting mechanism, and a rotation control provided on the container to restrict the rotation of the other end of the rotation link toward the center of gravity. Means.

According to the first invention, the container accommodating the object to be coated is hung on both arms by the respective rotating links connected to the elevating mechanism, and the container is tilted by operating the elevating mechanism respectively. It is a configuration to make it.
Specifically, for example, when the rotating link on the other side is relatively lowered with respect to the rotating link on one side, the connecting portion of the one rotating link to the container is set at the rotation center (the other end portion). The side (rotating in the direction opposite to the direction of the center of gravity) rotates, and the connecting portion (rotating portion) of the other rotating link to the container rotates downward (the other end rotates in the direction of the center of gravity). Therefore, the rotating part moves in a direction to reduce the horizontal distance from the center of gravity of the container. However, when the rotation link (rotation in the direction of the center of gravity) of the other side is restricted by the rotation restricting means, the connecting portion (freely rotatable) between the rotating link and the elevating mechanism becomes a new rotating portion. It is said. The new turning portion is geometrically located at a position horizontally separated from the center of gravity position with respect to the turning portion before being subject to the rotation restriction. That is, the horizontal separation dimension of the rotating portion from the position of the center of gravity of the container is increased.
Also, when the other side of the rotating link is relatively raised, the center of rotation moves in a direction to reduce the horizontal distance from the center of gravity of the container. After that, when one of the rotation links (rotation in the direction of the center of gravity) is restricted by the rotation restricting means, the connecting portion (rotatable) between the rotation link and the elevating mechanism becomes new. It becomes the center of rotation. That is, the horizontal separation distance between the center of rotation and the position of the center of gravity of the container is increased.
Furthermore, the center of rotation for tilting (rotating) the container is defined as a connection portion (inside the container) with the rotation link. Therefore, since the displacement of the container in the horizontal direction during rotation is limited to the expansion due to the shape of the container or the like (the arrangement of the rotation center and the rotation portion), the amount of displacement in the horizontal direction is small.

Next, according to a second aspect of the present invention, in the first aspect described above, the connecting portion between the rotating link of both arms and the container is provided at a height position at which the container can be tilted to a predetermined angle. Is what it is.
Here, the predetermined angle refers to the rotation angle of the rotation link for tilting the container to a required tilt angle by the lifting mechanism. The maximum tilting angle of the container differs depending on the connection portion between the rotation link and the container, and is determined in detail by the geometrical positional relationship between the center of rotation and the position of the center of gravity of the container. For example, the maximum tilt angle increases as the connection portion (rotation center) between the rotation link and the container is located below the container.
According to this second invention, the container is tilted to a predetermined angle. That is, the container can be tilted to an angle required in the coating process. Even when the container is tilted in this way, the container is always in a stable state. Further, the container is easily biased in the tilting direction.

Next, according to a third aspect of the present invention, in the first or second aspect described above, the connecting portion between the rotating link of both arms and the container is provided at a side end position of the container. .
Here, the maximum tilting angle of the container increases as the connecting portion (rotation center) between the rotation link and the container moves away from the center of gravity in the horizontal direction.
According to the third aspect of the present invention, the center of rotation and the rotating portion are arranged at the side end positions of the container, so that the suspended state of the container is stabilized. Further, since the center of rotation is sufficiently separated in the horizontal direction from the position of the center of gravity of the container, the tilting becomes easy. That is, the force applied to the lifting operation is reduced.

Next, according to a fourth invention of the present invention, in any one of the first to third inventions described above, the elevating mechanism uses a plurality of electric hoists to form a bending-flexible suspending portion that suspends the rotating link. It is configured to perform winding or unwinding, and further includes a lateral displacement restricting means for restricting a lateral displacement of the hanging portion.
Here, examples of the bendable suspending portion include a load-resistant chain and a wire that can be wound or unwound by an electric hoist. In addition, when the hanging portion is wound or unwound from the electric hoist, for example, if the hanging portion is displaced in the lateral direction due to the shape of the tilting container, the lifting operation is not smoothly performed because the hanging portion is caught on the electric hoist. Sometimes.
According to the fourth invention, the lateral displacement of the hanging portion caused when the container is tilted or the like is regulated by the lateral displacement regulating means. Thus, the suspension portion that is wound or unwound from the electric hoist does not always have a lateral displacement with the lateral displacement restricting means. In addition, since the lateral displacement restricting means is interposed between the electric hoist and the rotating link, a portion where the suspension portion is laterally displaced has a size corresponding to the dimension of the lateral displacement restricting means and the rotating link.

Next, in a fifth aspect of the present invention, in the above-described fourth aspect, the lateral displacement restricting means is configured to be capable of adjusting the height of the position for restricting the suspension portion.
According to the fifth invention, the height of the position for regulating the hanging portion can be adjusted. Thereby, for example, by changing the regulating position in accordance with various usage forms such as a long distance from the lifting mechanism to the processing tank, the length from the lateral displacement regulating means of the hanging portion to the rotation link is adjusted. .

Next, according to a sixth aspect of the present invention, in the above-described fifth aspect, the lateral displacement restricting means is configured to be slidable in the height direction of the elevating mechanism, and the elevating mechanism is provided with a lateral displacement restricting means. And a stopper that regulates the lowermost sliding position of the lateral displacement restricting means, and slides the lateral displacement restricting means down to the position of the stopper following the lowering operation of the elevating mechanism. Then, following the ascending operation, the engaging portion engages with the lateral displacement restricting means to slide up.
According to the sixth invention, the lateral displacement restricting means is configured to be slidable in the height direction of the lifting mechanism, and the stopper is provided at the lowest sliding position. Therefore, when the lifting / lowering mechanism is moved down, the lateral displacement restricting means slides down to the position of the stopper while being engaged with and engaged with the engaging portion. Further, when the engagement portion engages with the lateral displacement restricting means by the ascending operation, it is slid up from the position of the stopper following the engagement.

Next, according to a seventh aspect of the present invention, in any one of the first to sixth aspects described above, furthermore, the device is interposed between the other end portion of the rotating link of the both arms and the elevating mechanism. And a sub-rotational link for rotatably connecting the rotation link.
According to the seventh aspect of the invention, when the rotation link is restricted by the rotation restricting means, the sub-rotation link assumes a posture extending upward from the newly formed rotation center or rotation part. Take. That is, the connection portion with the lifting mechanism is located above.

According to the present invention, the following effects can be obtained by taking the above-described means.
First, according to the first invention of the present invention, when each of the rotation links is moved up and down to tilt the container, the rotation center and the rotation portion are reduced in the horizontal distance from the center of gravity of the container. , And the state of suspension of the container proceeds to an unstable state. However, the rotation restricting means restricts the rotation of the rotation link on the side corresponding to the tilting direction of the container, so that a new rotation center or a rotation part is formed at a position apart from the position of the center of gravity of the container, which is stable. Can be in a state. Thereby, the container can be sufficiently and stably tilted. Further, since the amount of lateral displacement of the container caused by the rotation is small, the container can be sufficiently tilted in a compact processing tank.

Next, according to the second invention of the present invention, the container can be stably tilted to a required angle. Further, since the container is easily biased and easily tilted, the lifting operation (tilting operation) is performed smoothly.
Next, according to the third invention of the present invention, the hanging state of the container can be further stabilized. For example, when the container is repeatedly tilted to the left and right, even the container that has been subjected to the tilting bias can be stably stopped at the horizontal position. Further, the tilting operation can be smoothly performed by the geometrical positional relationship between the center of rotation and the position of the center of gravity.
Next, according to the fourth invention of the present invention, the lifting operation and the tilting operation of the container become smooth. Further, it is possible to prevent the container from being obliquely hung, for example, the hanging portion is laterally displaced and hooked on the electric hoist. Further, a load such as bending or torsion is not applied to the electric hoist due to the lateral displacement of the hanging portion. Furthermore, since the length (rotation radius) when the suspending portion is displaced in the lateral direction is substantially shortened, it is possible to suppress the container from swinging in the lateral direction during the lifting operation or the tilting operation.
Next, according to the fifth invention of the present invention, even when the distance from the elevating mechanism to the processing tank is long, the lateral displacement of the hanging portion can be suitably suppressed.
Next, according to the sixth aspect of the present invention, the lateral displacement restricting means slides up and down in accordance with the elevating operation of the elevating mechanism. Never be. That is, the container can be slid more upward. Therefore, the container can be suitably moved up and down in accordance with the installation state of the processing tank and the like.
Next, according to the seventh invention of the present invention, since the connecting portion with the lifting mechanism in the state where the rotation link is restricted in rotation can be positioned above, the tilting device can handle Subsidence in the tank can be reduced.

The best mode for carrying out the present invention will be described below with reference to the drawings.
1 to 9 show an embodiment of an elevating device 10 with a tilting mechanism for a coating container. 1 is a perspective view of an elevating device 10 with a tilting mechanism for a coating container, FIG. 2 is a front view of FIG. 1, FIG. 3 is a diagram showing a state where the container 30 is suspended at an upper position, and FIG. FIG. 5 shows a state in which the container 30 in FIG. 4 is tilted, FIG. 6 shows a state in which the container 30 in FIG. 5 is further tilted, and FIG. FIG. 8 is a diagram showing a state in which the container 30 is pulled up to the upper part of the processing tank T, FIG. 8 is a diagram showing a state in which the container 30 in FIG. 7 is tilted, and FIG. 9 is an explanatory diagram shown for comparison with the prior art.

  The elevating device 10 with a tilting mechanism for a coating container of the present embodiment (hereinafter referred to as the elevating device 10) mainly includes an apparatus main body 20 and a cubic container 30 for accommodating an object to be coated (not shown). , A lifting mechanism 40 for raising and lowering the container 30, a transport mechanism 50 for transporting the lifting device 10 in the order of the coating process, and a tilting mechanism 60 for tilting the container 30.

Next, details of the configuration of each of the above units will be described.
The elevating mechanism 40 includes four electric hoists 41 arranged at the four upper corners of the apparatus main body 20. The two electric hoists 41 on the left front side in FIG. 1 are paired, and the right hoist 41 The two electric hoists 41 are configured to be paired to wind or unwind the suspension chains 42 on each side synchronously. A hook 44 is attached to the tip of the suspension chain 42 via an engagement portion 43 described later. Here, the suspension chain 42 corresponds to the suspension portion of the present invention.
As shown in FIG. 1, the transport mechanism 50 is disposed above the apparatus main body 20. The transport mechanism 50 is mounted on a monorail extending directly above each processing tank (not shown) in the order of the coating process. The main body 20 is suspended. As a result, the lifting device 10 is self-propelled by the driving force generated by the electric motor or the like of the transport mechanism 50, and can move through the treatment tanks for coating and cleaning in the order of the steps.

The tilting mechanism 60 has a configuration for tilting the container 30 using a lifting operation by the lifting mechanism 40, as is well shown in FIG. Specifically, one end portion of the rotation link 61 is rotatably connected by bolts 62 at the four bottom corners of the container 30 (the lower end positions left and right apart from the vertical line of the center of gravity of the container 30). (Connecting parts A and a). Further, one end of a sub-rotation link 63 is rotatably connected to the other end of the rotation link 61 by bolts 62 (connection portions B and b). Further, a pin-shaped hooking portion 64 protruding from the sub-rotating link 63 is formed at the other end portion of the sub-rotating link 63, and is configured to be detachably connected to the hook 44 described above. (Connecting parts C and c). That is, the container 30 is suspended by the raising and lowering mechanism 40 and these tilting mechanisms 60 with the connecting portions A, a, B, and b serving as turning nodes. Here, the position of the center of gravity of the container 30 will be described. Although the upper surface of the container 30 is open, it is formed in a cubic shape as a whole. Therefore, the position of the center of gravity of the container 30 is below the center of the container 30 and above the bottom surface. Further, when the object to be coated is accommodated in the container 30, it is located below the center of gravity, but above the bottom surface. That is, the position of the center of gravity of the container 30 does not fall outside the connecting portions A and a with the rotation link 61.
Therefore, the connecting portions A and a are located below the center of gravity of the container 30 in the initial suspended state (horizontal posture) and are sufficiently separated in the horizontal direction. Therefore, for example, if the container 30 is tilted about one of the connection portions A and a as the center of rotation, the container 30 can be tilted to a predetermined angle. Here, the predetermined tilt angle is an angle at which the container 30 during the coating process can be tilted to a sufficient angle by the lifting operation of the lifting mechanism 40. In other words, when the object to be coated is settled in the processing tank T, air bubbles and voids generated inside the processing tank T are suitably released to the outside, or when the container 30 is pulled up from the processing tank T in the upper part of the processing tank T, This is an angle at which the processing liquid L that has been excessively collected by, for example, being scooped can be dropped properly into the processing tank T. The auxiliary rotation link 63 secures a connection space between the rotation link 61 and the hook 44 of the elevating mechanism 40 (space of the connection portions B and b), and makes the rotation smooth. In addition to this, the sub-rotational link 63 takes an attitude of extending upward when the rotation link 61 is restricted in rotation by an L-shaped stopper described later. Therefore, it acts so as to position the connecting portions C and c with the hook 44 above the processing tank T.

Next, as shown in FIG. 1, an L-shaped stopper 65 having a substantially L-shaped cross section is provided near the upper four corners of the container 30. Here, the L-shaped stopper 65 corresponds to the rotation restricting means of the present invention. The L-shaped stoppers 65 are provided at positions close to the left and right rotation links 61 in a state where the container 30 is hung horizontally, respectively, in the inward direction. The rotation in the inward direction (the direction of the center of gravity) on the end portion side is restricted. The left and right rotation links 61 are formed longer than the dimension from the position of the connecting portions A and a to the position of the L-shaped stopper 65 (the other end portion is longer). In the state where the rotation is restricted (abutted) by the L-shaped stopper 65, the inward rotation of the connecting portions A and a is restricted, but the connecting portions B and b are freely rotatable without being restricted. State.
Next, as shown in FIG. 1, the frame body 21 constituting the four corners of the apparatus main body 20 is provided with lateral displacement restricting means 66. The lateral displacement restricting means 66 includes a frame 66b having two through holes 66a formed therein, and a rotor 66c rotatably provided at both extreme ends of the frame 66b. On the other hand, the frame body 21 is formed in a substantially U-shaped cross section that enables the rotation of the rotor 66c of the lateral displacement restricting means 66. Therefore, the lateral displacement restricting means 66 is positioned at both extreme ends thereof. The sliding in the up-down direction is possible while rolling the rotor 66c in the frame 21 of the first embodiment. The two through-holes 66a of the frame 66b are arranged in a hanging direction at a position where the suspension chain 42 is unwound from the electric hoist 41 located above, and the suspension chain 42 is inserted into each of them. Therefore, in the hanging chain 42 inserted in this way, the displacement in the lateral direction or the like is regulated by the size of the through hole 66a. That is, the lateral displacement restricting means 66 acts to always maintain the posture of the suspension chain 42 from the electric hoist 41 toward the through hole 66a in the hanging direction. Thus, the range in which the suspension chain 42 can swing in the lateral direction is limited to a portion below the lateral displacement restricting means 66.
By the way, the engagement portion 43 provided at the tip of the suspension chain 42 described above is formed to be larger than the diameter of the through hole 66a. Therefore, when the lifting operation by the electric hoist 41 is performed, the lateral displacement restricting means 66 slides up and down so as to be driven by the engaged portion 43. Specifically, when the lifting operation is performed by the lifting mechanism 40 (the hoist chain 42 is hoisted by the electric hoist 41), the engaging portion 43 rises and engages with the lateral displacement restricting means 66 from below, and the above-described sliding is performed. The lateral displacement restricting means 66 is raised by a possible configuration. Also, depending on the descending operation, the lateral displacement restricting means 66 in a state of being engaged with the engagement portion 43 by gravity descends following the descending operation. Here, a detachable stopper 67 is attached to the frame body 21 so as to regulate the lowermost sliding position of the above-mentioned lateral displacement regulating means 66. Therefore, when the lateral displacement restricting means 66 is restricted by the stopper 67, only the suspension chain 42 is sequentially unwound downward. Thus, by changing the attachment position of the stopper 67, the height of the position that restricts the lateral displacement of the suspension chain 42 can be adjusted.

As described above, the lifting device 10 of the present embodiment is configured. Next, a method of using the lifting device 10 will be described.
In the present embodiment, the transport mechanism 50 of the elevating device 10 moves the container 30 containing the object to be coated directly above the processing tank T for coating or cleaning. A method of using the container 30 to sink and tilt in the stored processing liquid L will be described. Next, a description will be given of a usage method in which the container 30 is pulled up from the processing liquid L and the container 30 is tilted in this state so that the processing liquid L is dripped off.
Here, when the container 30 is tilted by the lifting device 10, the operation of tilting the container 30 to the left includes an operation of relatively raising the right side of the container 30 and an operation of relatively lowering the left side of the container 30 illustrated in FIG. 2 and the like. Has substantially the same functions and effects. It is obvious that the operation of inclining the container 30 to the right has the same behavior as the case of inclining the container 30 to the left, and therefore the details thereof will be omitted with a simple explanation. I will do it.
Next, when performing the raising / lowering operation and the tilting operation, the four electric hoists 41 are wound or unwound by the two right and left electric hoists 41 operating synchronously. Further, each rotation link 61 is in a state of being close to the L-shaped stopper 65 in a state where the container 30 is in the horizontal posture. Further, as shown in FIG. 3, the container 30 is in a state of being suspended above the apparatus main body 20, and the lateral displacement restricting means 66 is in a state of being lifted by the engagement portion 43. Further, in this state, the container 30 is in a state of being suspended with both arms such that the center of gravity is arranged between the horizontal separation dimensions of the connecting portions A and a.

First, the container 30 is lowered by operating the left and right electric hoists 41 in the unwinding direction. At this time, the lateral displacement restricting means 66 also descends in accordance with the unwinding of the electric hoist 41, and is locked at the restricting position of the stopper 67. After that, the suspension chain 42 is unwound through the through hole 66a of the hung lateral displacement restricting means 66, and the operation is stopped when the container 30 is lowered into the processing tank T. In this state (see FIG. 4), the suspension chain 42 is in a posture hanging down from the electric hoist 41 toward the connecting portions C and c.
Next, for comparison with the related art, a case where the container 30 is tilted without the L-shaped stopper 65 will be described with reference to FIG. First, the right side of the container 30 is lifted by the right side electric hoist 41 while the left side of the container 30 is lowered by the left side electric hoist 41 (the right rotating link 61 is relatively raised). Thereby, the other end portion side (connection portion b side) of the right rotation link 61 rotates in the direction opposite to the direction of the center of gravity, and the other end portion side (connection portion B side) of the left rotation link 61 becomes the center of gravity. Rotate in the direction. That is, the connecting portion A is the center of rotation for the right rotating link 61, and the connecting portion a is the center of rotation for the left rotating link 61, and the respective rotating portions a and A (the container 30 The container 30 moves in a direction to narrow the horizontal distance from the center of gravity of the container 30 in the horizontal direction. Therefore, the suspended state of the container 30 advances in an unstable direction. When such a state further progresses and the position of the center of gravity of the container 30 exceeds the position of the connecting portion A (the connecting portion located on the lower side) to the outside in the horizontal direction, the container 30 loses its balance and falls down (reversed). Will be done.
However, in the present embodiment, as shown in FIG. 5, when the container 30 is tilted to the left, the left rotation link 61 is restricted by the L-shaped stopper 65 in the direction of the center of gravity. In order to counteract this, the connecting portion B is replaced with a new center of rotation or a new turning portion. That is, the right connecting portion a serving as the turning portion turns around the connecting portion B as a new center of rotation instead of the connecting portion A. On the other hand, the connection part A (rotation part) that has been rotated about the connection part a as the rotation center is subject to the rotation restriction, so that the connection part B becomes a new rotation part and rotates. I do. Thereby, the horizontal separation dimension of the connecting portion B with respect to the position of the center of gravity of the container 30 is widened, and the suspended state of the container 30 is stabilized. Therefore, by tilting the container 30 in this manner, air bubbles and voids generated inside the object to be coated when the object (together with the container 30) is settled in the processing tank T can be appropriately released to the outside. it can. Note that the tilt angle shown in FIG. 5 is merely an example, and if bubbles and the like are not completely removed to the outside by such a tilt angle, the tilt angle may be further increased. According to the configuration of the present embodiment, it is possible to tilt the container 30 at a substantially right angle as shown in FIG.

Further, the container 30 may be tilted to the right after this according to the shape of the object to be coated. To tilt the container 30 to the right, the container 30 may be tilted to the right by lowering the right side while raising the left side of the container 30. Accordingly, the left rotation link 61 rotates in the opposite direction to the direction of the center of gravity while rotating around the connection part a with the connection part A as the rotation part. On the other hand, the right rotation link 61 rotates in the direction of the center of gravity with the connection part a as a rotation part around the connection part A as a rotation center. However, when the right rotation link 61 is subject to the rotation restriction, the connection part b becomes the new rotation center for the left rotation link 61 instead of the connection part a. Further, for the right rotation link 61, the connecting portion b becomes a new turning portion instead of the connecting portion a.
As described above, the container 30 is tilted rightward or leftward. Note that the container may be repeatedly tilted (swinged) a plurality of times according to the shape or the like of the object to be coated.

  Thereafter, when the container 30 is pulled up from the processing tank T (the container 30 is in a horizontal position, see FIG. 7), the object to be coated may scoop up the processing liquid L in the processing tank T depending on its shape or the like. Therefore, next, as shown in FIG. 8, the container 30 is tilted at the upper part of the processing tank T, and the processing liquid L that has been excessively stored is dropped into the processing tank T. The method of tilting the container 30 at this time is the same as the above-described method, and thus will not be described. Then, if necessary, the container 30 is also tilted to the right (this may be repeated a plurality of times), and then the lifting device 10 is transported to the next processing tank T to perform the processing. In addition, it is less likely that the processing liquid L in the pre-processing is carried to the next processing tank T.

As described above, the container 30 may be tilted in the coating process.
As described above, the lifting device 10 of the present embodiment can stably tilt the container 30 to a sufficient angle with the simple configuration as described above. That is, when the container 30 is tilted, the connecting portions A and a (the center of rotation or the rotating portion) for suspending the container 30 move in the direction of decreasing the horizontal separation dimension (see FIG. 9). Progresses to an unstable suspension state. However, since the L-shaped stopper 65 is provided, the center of rotation or the rotating portion to be narrowed is formed at a position separated from the center of gravity as a new rotating center or rotating portion (see FIG. 5). ). Accordingly, the suspended state of the container 30 is stabilized again, even though the container 30 is tilted. Further, since the connection portions A and a are provided at the lower end of the container 30, the container 30 can be tilted to a sufficient angle (see FIG. 6). Further, the hung state of the container 30 when returning to the horizontal posture is also stabilized. Therefore, when the object to be coated is settled in the processing tank T, air bubbles and voids generated inside the object are released to the outside, and when the object to be coated is pulled up from the processing tank T, the excess processing liquid L scooped is processed. Dropping into the tank T can be reliably performed. Accordingly, coating defects due to bubbles and the like do not occur, and the finish after processing can be improved. Further, since the treatment liquid L of the pre-treatment is less brought into the next treatment tank T, the treatment liquid L of the next treatment is less diluted or polluted, and the treatment liquid L can be used for a long period of time. it can.

Further, since the center of the tilt (rotation) when the container 30 is tilted is provided within the shape of the container 30, the lateral displacement of the container 30 due to the tilt is small. Therefore, the container 30 can be tilted sufficiently and stably in the processing tank T having a compact size, and the effect of saving the processing liquid L can be expected.
Further, the posture of the suspension chain 42 (hanging portion) unwound from the electric hoist 41 can be held vertically by the lateral displacement restricting means 66. Therefore, the lifting chain can be smoothly operated without the hanging chain 42 being hooked on the electric hoist 41 or applying an unnecessary load to the electric hoist 41. In addition, the lateral displacement restricting means 66 substantially reduces the length in which the suspension chain 42 swings in the lateral direction, and may cause the container 30 to collide with the wall surface of the processing tank T when ascending or descending or tilting. Absent. Therefore, the speed required for ascending and descending and tilting can be increased, and the time required for processing can be reduced.
Further, since the lateral displacement restricting means 66 is configured to be slidable up and down, if the position of the stopper 67 is adjusted according to the distance from the monorail to the processing tank T, the container 30 can be raised to a suitable position. Or even if the container 30 is sufficiently lowered, the displacement in the lateral direction can be suppressed.
Furthermore, since the auxiliary rotation link 63 is provided, the connection portions C and c with the hook 44 in a state where the rotation link 61 is restricted from rotating can be positioned above. Therefore, it is possible to reduce the possibility that the hooks 44 and the hanging chains 42 sink in the processing tank T (the processing liquid L) during the tilting.

As described above, the embodiment of the present invention has been described for one embodiment, but the present invention can be implemented in various forms other than the above embodiment.
For example, in the present embodiment, an example is shown in which the left and right electric hoists are alternately moved up and down in order to efficiently tilt the container 30, but, for example, the one electric hoist 41 is stationary. The relative tilt angle may be obtained by raising and lowering the other side.
Also, the L-shaped stopper 65 as the rotation restricting means is shown in a state in which the container 30 is in a horizontal posture and is in close proximity to the left and right rotation links 61 on the inner side, respectively. May be further provided on the inner side. That is, the container 30 may be provided at a position where the container 30 can be more stably hung by the rotation center or the rotation portion newly formed by restricting the rotation of the rotation link 61 in the direction of the center of gravity.
Further, the stopper 67 is provided at the lowermost position of the frame 21. However, for example, a plurality of stoppers 67 are arranged in the height direction of the frame 21, and a suitable stopper 67 can be appropriately selected at the time of the coating process. Such a configuration may be employed. That is, for example, when the distance from the monorail to the processing tank T is not constant during each processing, for example, if the processing is performed by appropriately selecting the stopper 67 that is a suitable lowermost position by automatic control, Shaking in the direction can be more suitably suppressed.
Furthermore, although four electric hoists 41 are shown arranged at each corner of the apparatus main body 20, the number is not limited. For example, the same operation and effect can be obtained by providing one on each side with a configuration capable of winding or unwinding two suspension chains from one electric hoist.
Furthermore, although the rotor 66c that enables the lateral displacement restricting means 66 to slide along the frame 21 is shown, the present invention is not limited to the rotor 66c, and the structural relationship that allows the lateral displacement restricting means to be guided with respect to the frame. The shape is not particularly limited as long as it has a shape (for example, a slider).
Further, the rotating link 61 and the sub-rotating link 63 are fixedly mounted on the container 30 in advance, and the connecting portions C and c between the sub-rotating link 63 and the hook are configured to be detachable. However, the position of the detachable connecting portion is not limited. That is, even if the detachable connecting portions are set to A, a or B, b, the gist of the present invention is not deviated. For example, when the connecting portions A and a are made detachable, a hook portion is formed on the connecting portions A and a like the hook portion 64 shown in this embodiment, while a hook for hooking on the hook portion is formed. A notch having a substantially C-shaped cross section may be formed at a position near the extreme end of the dynamic link and fitted. With this configuration, the lifting device can be integrally provided with the rotation link and the sub rotation link. Therefore, the rotating link can be lowered (stable) from the elevating mechanism to the container provided with the rotation restricting means in advance, so that the connection operation between the two (the rotating link and the hook) can be performed. It can be performed more easily.

1 is a perspective view of a lifting device with a tilting mechanism for a coating container according to an embodiment of the present invention. It is a front view of FIG. It is a figure which shows the state which hung the container in the upper position. It is a figure showing the state where a container was lowered in a processing tank. It is a figure which shows the state which tilted the container in FIG. FIG. 6 is a view showing a state where the container in FIG. 5 is further tilted. It is a figure showing the state where a container was pulled up to the upper part of a processing tank. It is a figure which shows the state which tilted the container in FIG. It is an explanatory view shown for comparison with the prior art.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 10 Elevating apparatus with a tilting mechanism of a coating container 20 Device main body 21 Frame 30 Container 40 Elevating mechanism 41 Electric hoist 42 Suspension chain (suspension part)
43 Engagement part 44 Hook 50 Transport mechanism 60 Tilting mechanism 61 Rotating link 62 Bolt etc. 63 Sub-rotating link 64 Hook A, a, B, b, C, c Connecting part 65 L-shaped stopper (rotation restricting means)
66 Lateral displacement restricting means 66a Through hole 66b Frame 66c Rotor 67 Stopper T Treatment tank L Treatment liquid

Claims (7)

An elevating device with a tilting mechanism of a coating container for tilting the container in a processing tank or at an upper part of the processing tank, comprising a lifting mechanism for raising and lowering a container containing the object to be coated,
One end portion is rotatably connected to the container at a predetermined position spaced apart left and right with respect to the vertical line of the center of gravity of the container containing the object to be coated, and the other end portion is rotated by the lifting mechanism. A rotating link that is freely connected and suspends the container on the lifting mechanism with both arms;
Rotation restricting means provided on the container, for restricting rotation of the other end portion of the rotation link in the direction of the center of gravity,
An elevating device with a tilting mechanism for a coating container, comprising: An elevating device with a tilting mechanism for a coating container according to claim 1,
A connecting portion between the rotating link of the both arms and the container is provided at a height position at which the container can be tilted to a predetermined angle, wherein the lifting device with a tilting mechanism for a coating container is provided. An elevating device with a tilting mechanism for a coating container according to claim 1 or 2,
A connecting portion between the rotating link of the both arms and the container is provided at a side end position of the container, wherein the lifting device with a tilting mechanism for a coating container is provided. An elevating device with a tilting mechanism for a coating container according to any one of claims 1 to 3,
The elevating mechanism is configured to take up or unwind a flexible suspension portion that suspends the rotation link by a plurality of electric hoists,
The lifting device with a tilting mechanism for a coating container, further comprising a lateral displacement restricting means for restricting a lateral displacement of the hanging portion. An elevating device with a tilting mechanism for a coating container according to claim 4,
The lifting device with a tilting mechanism for a coating container, wherein the lateral displacement restricting means is configured to be capable of adjusting the height of a position for restricting the hanging portion. An elevating device with a tilting mechanism for a coating container according to claim 5,
The lateral displacement restricting means is configured to be slidable in the height direction of the lifting mechanism,
The elevating mechanism has an engagement portion that engages with the lateral displacement restricting means, and a stopper that regulates a lowermost sliding position of the lateral displacement restricting means,
Following the lowering operation of the raising / lowering mechanism, the lateral displacement restricting means is slid down to the position of the stopper, and following the raising operation, the engaging portion engages with the lateral displacement restricting means to slide up. An elevating device with a tilting mechanism for a coating container, wherein the elevating device is configured to cause the coating container to tilt. An elevating device with a tilting mechanism for a coating container according to any one of claims 1 to 6,
Further, a sub-rotating link is provided between the other end portion of the rotating link of the both arms and the lifting mechanism and rotatably connects the rotating link. Elevating device with a tilting mechanism for the coating container.

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