JP3604313B2 - Rail type transfer equipment in plating process - Google Patents

Description

[0001]
[Industrial applications]
According to the present invention, a holding device for holding a plating material is sequentially supplied to plating treatment tanks arranged in parallel for plating (electroplating, chemical plating, etc.) on a predetermined material, and a material held by the holding device is subjected to a predetermined procedure. The present invention relates to a rail-type transfer device used in a plating step of plating.
[0002]
[Prior art]
In the plating step, a plurality of plating tanks are installed continuously or in parallel at a predetermined interval, and a barrel or other holding device for holding the material is moved from one end of the plating tank to the other end. Since the material is plated by sequentially supplying (soaking) it to the treatment tank for a predetermined time, a rail-type transfer device having an overhead crane structure having a hoisting device is used.
Also, in the plating process, a hoisting chain is hung on a driving sprocket installed in a rail-type transfer device, and a hoisting device having a structure that holds a barrel holding frame or the like on this chain and raises / lowers it is installed. Owing to swing, the stability of the vertical movement cannot be secured. Therefore, a guide frame having a guide rail is installed vertically below the rail-type transfer device, and the hoisting chain is used to raise and lower the elevating frame along the guide rail, and a pickup member is attached to the elevating frame via a support piece. A hoisting device is used which has a structure in which the holding frame holding the holding device by the pick-up member is cantilevered and lifted and lowered to supply them to the plating tank for a predetermined time.
[0003]
By the way, a transfer device of a general overhead crane structure has two rails made of an I-beam or an H-beam or the like installed horizontally and parallel to the ceiling side, and a vehicle frame (bogie) capable of running along the rails. ) Is mounted on the vehicle frame, and two sets of pairs of wheels that are in contact with the upper surface of each rail are mounted, and rotational force is transmitted to one of the wheels from a transfer motor.
Such an overhead crane structure transfer device requires two rails and requires a large installation space, and when the hoisting load on the hoisting device is small, the wheels may derail from the rails when subjected to an impact from below. easy.
For example, Japanese Patent Laying-Open No. 50-27216 proposes the following rail-type transfer device capable of preventing wheel derailment.
[0004]
In the rail-type transfer device described in the publication, one horizontal rail having a flange with a cross-section inverted T-shaped along the length direction to the lower side on the ceiling side is installed in a suspended state, the rail Is mounted such that a vehicle frame having side plates connected to each other with the rail sandwiched from both sides can run.
Each pair of wheels is attached to each side plate of the car frame at two places along the traveling direction of the car frame in a state of rolling contact with the upper surface of each flange of the rail, and each wheel does not contact the corresponding flange. Thus, a flange-shaped gear is formed in the circumferential direction.
On each of the side plates, a holding roller is rotatably mounted so as to be positioned in the middle of each pair of wheels and pressed against the lower surface of the flange with a predetermined elasticity to be rolled, and the frame is from below. It is configured such that the wheels do not rise or derail even if subjected to an impact.
The gears of each pair of wheels are meshed with gears fixed to the shaft of the holding roller, and each pair of wheels is driven by a motor via an intermediate gear attached to each side plate, whereby each pair of wheels is driven. The wheels are rotated at the same peripheral speed to prevent each wheel from spinning.
[0005]
[Problems to be solved by the invention]
The rail-type transfer device described above does not require a large installation space because it has only one rail, and can prevent the wheels from floating or derailing due to impact from below. The deflection in the direction (horizontal direction crossing the rail) cannot be prevented. Of course, if rails and wheels are machined very precisely, a considerable portion of lateral runout can be prevented, but such is not possible in terms of equipment costs.
As described above, the hoisting device of the transfer device in the plating process raises and lowers the transfer target while holding the transfer target in a cantilever shape. When the plating material is small, the relative deflection of the plating material becomes large, even if the amount of the plating material is small, and the quality of the plated product is adversely affected.
[0006]
SUMMARY OF THE INVENTION An object of the present invention is to provide a rail-type transfer device having a hoisting device and capable of effectively preventing lateral run-out by an inexpensive means in a plating process step.
[0007]
[Means for Solving the Problems]
The rail-type transfer device in the plating step according to the present invention is configured as follows in order to solve the above-described problem.
That is, the rail-type transfer device in the plating step according to claim 1,
A horizontal rail 1 having a flange portion 11 having an inverted T-shaped cross section along the length direction on both lower sides is installed in a hanging manner along a row of plating tanks c arranged in one direction,
A vehicle frame 2 having side plates 20 and 20 connected to each other so as to sandwich the rail 1 from both sides and having a hoisting device b attached to a lower portion is installed so as to run along the rail 1. ,
At least two places along the traveling direction of the vehicle frame 2, each pair of wheels 3, 3 which are in contact with the upper surface of each of the flanges 11, 11 along the traveling direction of the vehicle frame 2, are attached to the corresponding side plates 20, respectively.
A holding roller 4 that rolls along the running direction of the vehicle frame 2 while being pressed against the lower surface of the rail 1 with a predetermined elasticity is attached to the side plates 20, 20.
At least one pair of steady rest rollers 5, 5 are provided in a state of rolling contact with both sides of the vertical trunk 10 of the rail 1 along the traveling direction of the vehicle frame 2,
Each of the steady rest rollers 5 is rotatably held by a U-shaped roller holder 52, and is rotatably held by a tubular bolt 54 screwed into a female screw hole 23 formed in a corresponding side plate 20. Each of the roller holders 52 is pressed against the vertical body 10, and each of the roller holders 52 is tightened from the outside of the corresponding side plate 20 through the tubular bolt 54 into the female screw hole 52 a of the roller holder 52 by a fastening bolt 55. It is characterized by being attached to.
[0008]
The rail-type transfer device according to claim 2 is the rail-type transfer device according to claim 1,The tubular bolt 54 is characterized in that it is locked to the side plate 20 by a fastening nut 56 which is fastened to the tubular bolt 54 outside the corresponding side plate 20.
[0009]
The rail-type transfer device according to claim 3 is the rail-type transfer device according to claim 1 or 2,
The holding roller 4 is provided substantially directly below each pair of wheels 3, 3, and each holding roller 4 is rotatably mounted on a shaft 40.
Both ends of the shaft 40 of each holding roller are rotatably attached to a housing 42 which is attached to the side plates 20 and 20 in a vertically movable state within a predetermined range,
Each housing 42 is urged upward by a spring 43,
Sprockets 34 are respectively provided so as to rotate integrally with one wheel of each pair of wheels 3 and 3,
The two sprockets 34 are configured to be linked by a chain 35,
A flange 30 is formed on each pair of wheels 3 and 3 in a circumferential direction so as to approach or contact the outer edge of the corresponding flange 11. These flanges 30 are formed on gears 30 a and these gears 30. 30a is meshed with a gear 41 fixed to the shaft 40 of the holding roller 4 so as to correspond to the gear.It is characterized by:
[0010]
The rail-type transfer device according to claim 4 is the rail-type transfer device according to any one of claims 1 to 3, wherein the pair of steady rest rollers 5, 5 are installed near the wheels 3, 3 of each pair. It is characterized by having.
[0011]
The rail-type transfer device according to claim 5, the rail-type transfer device according to any one of claims 1 to 3,
The hoisting device b,
A hoisting sprocket 6 attached to the side plates 20, 20 at a lower portion of the vehicle frame 2;
A motor 69 for rotating the hoisting sprocket 6 in the forward and reverse directions,
A guide frame 61 attached to the vehicle frame 2 so as to extend vertically in the vicinity of the sprocket 6;
A guide rail 62 fixed along the guide frame 61 and having flanges 62a, 62a on both sides along the length direction;
An up-and-down frame 63 having a U-shaped cross section that can be moved up and down along the guide rail 62 and surrounds the guide rail 62 in plan view;
A pair of rollers 67, 67 attached to both side plates 63a, 63a of the elevating frame 63 and rolling on both surfaces of the flanges 62a, 62a with the flanges 62a, 62a interposed therebetween;
Pick-up members 65 attached to both sides of the distal end of a support piece 64 projecting substantially horizontally to the elevating frame 63 and holding hook bars 88 attached to both sides of the barrel holding frame 8 for holding;
A chain 66 for raising and lowering the elevating frame 63 by the hoisting sprocket 6.
[0012]
The rail-type transfer device according to claim 6 is the rail-type transfer device according to claim 5,
The sprocket 6 is installed above a base end side of the support piece 64,
The hoisting chain 66 is hung on the sprocket 6, one end of the chain 66 is linked to the base end of the support piece 64, and the other end of the chain 66 is the guide frame 61 made of a square pipe. The weight 68 is attached hanging down inside,
One pair of sprockets 6a and 60 is coaxially mounted on the sprocket 6 and the other is mounted on another shaft which is parallel to the axis of the sprocket 6 and located above the distal end of the support piece 64. Further comprising
Another hoisting chain 66a is hung on these pairs of sprockets 6a, 60. One end of the other chain 66a is linked to the tip of the support piece 64, and the other end of the chain 66a is connected to the other end of the chain 66a. A weight 68 is attached to the guide frame 61 so as to hang down.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of a rail type transfer device according to the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing an embodiment of the rail-type transfer device according to the present invention, FIG. 2 is an enlarged sectional view of the rail-type transfer device of FIG. 1 along arrow AA, and FIG. , FIG. 4 is a partial plan view of the rail-type transfer device of FIG. 1, and FIG. 5 is a partially exploded cross-sectional view of a mounting portion of the steady rest roller in the rail-type transfer device of FIG. 1. 6, FIG. 6 is a partially enlarged cross-sectional view of the rail-type transfer device of FIG. 1, FIG. 7 is a partially-enlarged cross-sectional view of the rail-type transfer device of FIG. 1, taken along arrow CC, and FIG. FIG. 9 is an enlarged sectional view taken along the arrow DD of FIG. 8, and FIG. 10 is a schematic plan view showing a plating process in which the rail type transfer device of FIG. 1 is installed.
[0014]
In the rail-type transfer device a of this embodiment, reference numeral 1 denotes a rail made of, for example, an I-shaped steel or an H-shaped steel having flanges 11 in the shape of an inverted T along the length direction on both lower sides of the vertical body 10. It is.
The rail 1 is suspended from a ceiling (not shown) so as not to move in a horizontal state, or is fixed horizontally below a beam (not shown).
[0015]
Reference numeral 2 denotes a vehicle frame installed so as to run along the rail 1, and includes side plates 20, 20 facing each other so as to sandwich the rail 1 from both sides. They are connected by a connection bar 21 also serving as a spacer so as to keep a predetermined interval. More specifically, both ends of the connecting bar 21 are formed with small-diameter bolts (not shown). These bolts penetrate the side plate 20 and project outward, and the bolts projecting outward. A nut (not shown) is tightened via a washer.
[0016]
As shown in FIGS.In two places along the traffic direction,Two pairs of wheels 3, 3 and 3, 3 are mounted in a state of rolling contact with the upper surfaces of the flanges 11, 11 of the rail 1. Each wheel 3 is formed with a circumferential flange 30 whose inner surface is in contact with the corresponding outer edge of the flange 11 so as to prevent the respective wheel from swaying. Each of these collars 30 has a gear 30a.Has formed.
[0017]
One wheel of the pair of wheels 3 is fixed to a rotating shaft 31 rotatably and cantilevered to one side plate 20 via a bearing 31a. Is connected to an output shaft 32a of a traveling motor 32 attached to the outside of the one side plate 20. The motor 32 rotates normally and reversely under the control of a control device (not shown).
The other wheel of one pair of wheels 3 and 3 and the other pair of wheels 3 and 3 are cantilevered to the corresponding side frames 20 as shown in FIGS. 2 and 4. It is rotatably attached to a shaft 33. In this embodiment, each of the shafts 33 is tightened with a nut 33b via a spring washer to a bolt portion 33a at one end which penetrates the corresponding side plate 20 and projects outward. Is fixedly attached to
[0018]
Shafts 40 are respectively attached to the side plates 20 and 20 so as to be rotatable below respective pairs of wheels 3 and 3 at positions corresponding to the axes of the wheels 3 and 3 in the vertical direction. A holding roller 4 is rotatably attached to these shafts 40 in such a manner that at least both ends are pressed against a lower surface of the rail 1 on the outer side of the flanges 11 by a predetermined spring bias so as to be rolled, and Each wheel 3 is prevented from rising and derailing from the rail 1 when receiving an external force from the rail.
The shaft 40 of each holding roller 4 is rotatably mounted at both ends to a housing 42 which is vertically movable with a predetermined stroke to a corresponding portion of each side plate 20, 20. Then, each holding roller 4 is configured to be pressed against the lower surface of the flange 11 of the rail 1 with a predetermined elasticity by being urged upward by a spring 43 against each housing 42.
[0019]
In this embodiment, window holes 22 are formed in corresponding portions of each side plate 20, and a housing 42 is movable in a vertical direction in each window hole 22 with a predetermined stroke, as shown in an enlarged manner in FIG. At the same time, both ends of the shaft 40 are supported by bearings 44 in each housing 42. Then, a bolt 45 is fixed upward to the lower edge of each window hole 42, an adjustment nut 46 is attached to the bolt 45, and a spring 43 is interposed between the adjustment nut 46 and the lower end of the housing 42 to adjust the position. The urging force of the spring 43 can be adjusted by turning the nut 46.
[0020]
As shown in FIGS. 2 and 4, a sprocket 34 is mounted on one of the wheels 3, 3 of each pair of wheels so as to rotate integrally with the wheel 3, and these sprockets 34, 34 are endless. Are attached and linked.
On the other hand, gears 41, 41 are fixed to the shaft 40 of each holding roller 4 so as to be located at both ends of the holding roller 4, and these gears 41, 41 Gear 30a.
With this configuration, the wheels 3, 3, 3, 3 always rotate at the same peripheral speed during traveling and do not slip or idle.
[0021]
In order to further stabilize the running of the vehicle frame 2 and to reduce the size of the device, the holding rollers 4 are preferably installed immediately below the wheels 3, 3 corresponding to each pair as described above, It can be implemented even if one is installed in one place.
In order to install one holding roller 4 and rotate each wheel 3 at the same peripheral speed during traveling as described above, for example, an intermediate sprocket (not shown) is coaxially mounted on both sides of the vehicle frame 2 and the intermediate sprocket is mounted. The transmission means for transmitting the driving force from the motor 32 to each wheel 3 is different from that of the above-described embodiment, for example, by connecting the sprocket to the motor 32 and transmitting the rotation from the intermediate sprocket to each wheel 3. Constitute.
[0022]
Each side plate 20 is located near each pair of wheels 3 and 3 so as to correspond to them, and is pressed against both side surfaces of the vertical body 10 of the rail 1 so as to be in rolling contact with the pair of wheels 3. Rollers 5 and 5 are respectively attached. By providing these anti-vibration rollers 5, 5, lateral vibration of the vehicle frame 2 is almost completely prevented.
As shown in FIG. 3, each steady rest roller 5 is composed of a hard core material 50 made of metal or plastic, and a hard rubber or a plastic material similar to hard rubber adhered to the outer peripheral surface of the core material 50. , And is rotatably attached to a shaft 53 attached to a tip end of a bifurcated roller holder 52.
Each of the steady rest rollers 5 configured as described above is connected to the rail 1 via the respective roller holder 52 by two upper and lower tubular bolts 54 screwed into the corresponding female screw holes 23 of the corresponding side plate 20. Is pressed against the vertical trunk 10 of the first embodiment. Each roller holder 52 is attached to the side plate 20 by a fastening bolt 55 screwed into the female screw hole 52a of the roller holder 52 from the outside of the corresponding side plate 20 through the inside of the tubular bolt 54. Further, each tubular bolt 54 is locked to the side plate 20 by a fastening nut 56 screwed to the tubular bolt 54 outside the corresponding side plate 20.
[0023]
To press each of the steady rest rollers 5 against the vertical body 10 of the rail 1 in the state shown in FIG.
Referring to FIG. 5, which is an exploded sectional view, a fastening nut 56 is mounted on each tubular bolt 54, and the tubular bolt 54 is screwed into the corresponding female screw hole 23 of the side plate 20 by an appropriate amount.
In this state, a tightening bolt 55 is passed from the outside to the tubular bolt 54 via the spring washer 57, and the tightening bolt 55 is screwed into the female screw hole 52a of the roller holder 52 by an appropriate amount.
Next, the tubular bolt 54 is screwed into the female screw hole 23 of the side plate 20 to press the steady rest roller 5 against the vertical body 10 of the rail 1, and the fastening nut 56 is screwed to lock the tubular bolt 54 to the side plate 20. . In this state, the tightening bolt 55 is screwed into the female screw hole 52 a of the roller holder 52, and the roller holder 52 is finally fixed to the side plate 20 together with the steady rest roller 5.
With such a configuration, each of the steady rest rollers 5 can be attached to the corresponding side plate 20 so as to prevent rattling or curling with time and to operate stably. .
[0024]
By installing at least one pair of the steady rest rollers 5 with respect to the vehicle frame 2, the lateral vibration of the vehicle frame 2 can be prevented, but the lateral vibration of the vehicle frame 2 is more completely prevented, and the traveling thereof is further stabilized. To this end, it is preferable to install them in the vicinity of each pair of wheels 3 and 3 so as to correspond to them, as in the above embodiment.
[0025]
As shown in FIGS. 1 and 2, an attachment 71 is attached to one upper portion of one side plate 20 in a state where the attachment 71 is laterally separated from the side plate 20 by an appropriate amount. The position detection sensor 7 is attached to 71.
In this embodiment, the position detection sensor 7 is composed of a proximity switch having an electromagnetic contactless relay structure, and includes a first position detection sensor 7a located at an upper position and a second position detection sensor 7b located at a lower position. Have been.
On the other hand, a substantially T-shaped detection target (iron plate in this embodiment) 70 detected by the position detection sensors 7a and 7b is provided at an appropriate position of the rail 1 (a position where the vehicle frame 2 should stop). It is attached via an attachment 72 fixed to the part.
[0026]
The running motor 32 is configured to be automatically controlled by a control device (not shown) together with a winding motor to be described later, and the drive causes the vehicle frame 2 to move in one direction along the rail 1.RunningAt this time, when the first position detection sensor 7a approaches and detects the end portion 70a or 70b of the detected object 70, the first position detection sensor 7a rotates at a predetermined rate to reduce the speed of the vehicle frame 2, and the second position detection sensor When the sensor 7b approaches and detects the center leg 70c of the detection object 70, it is controlled to stop its rotation and stop the vehicle frame 2.
With such a configuration, the vehicle frame 2 is prevented from suddenly stopping, and the vehicle frame 2 is reliably stopped at a predetermined fixed position.
[0027]
Next, the hoisting device b installed in the rail type transfer device a of this embodiment will be described.
The hoisting device b includes a hoisting motor 69 attached to one side of the vehicle frame 2, a hoisting sprocket 6 mounted vertically below the vehicle frame 2, and one A guide frame 61 attached to the sprocket 6 so as to extend in the vertical direction, a guide rail 62 fixed along the guide frame 61, and an elevating frame 63 attached along the guide rail 62 so as to be able to move up and down. And each of the pickup members 65 attached to both sides of the support piece 64 via a support piece 64 horizontally extending to the lift frame 63, and each chain for raising and lowering the lift frame 63 by the hoisting sprocket 6. 66. The motor 69 is rotated in the forward and reverse directions by a control device (not shown).
In this embodiment, the sprocket 6 is installed above the base end side of the support piece 64, and one of them is mounted coaxially with the sprocket 6 and the other is parallel to the axis of the sprocket 6. And a pair of sprockets 6a, 60 attached to another shaft located above the tip side of the support piece 64, and another chain 66a for moving the lifting frame 63 up and down by the pair of sprockets 6a, 60. ing.
[0028]
As shown in FIGS. 2 and 4, the hoisting sprocket 6 and one sprocket 6a forming a pair with the sprocket 60 are integrally formed to have the same diameter, and these sprockets are formed side by side by bearings 6c and the like. It is fixed to a rotating shaft 6d rotatably attached to the plates 20, 20, and an output shaft 69a of a motor 69 is connected to the rotating shaft 6d.
The other pair of hoisting sprockets 60 has the same diameter as one of the sprockets 6a, and is fixed to a rotating shaft 60d rotatably attached to the side plates 20, 20 by a bearing 60c or the like. The rotation axes of the rotation shaft 6d and the rotation shaft 60d are at the same level position and are parallel.
[0029]
In this embodiment, a linking sprocket 6b having the same diameter as one of the hoisting sprockets 6, 6a is formed integrally with one of the hoisting sprockets 6, 6a, and a linking sprocket having the same diameter as the linking sprocket 60 is formed integrally with the other winding sprocket 60. 60b is formed and linked to both linking sprockets 6b, 60b by a linking chain 66b so that one sprocket 6, 6a and the other sprocket 60 rotate at the same peripheral speed when lifting and lowering the object. It is configured.
A spare sprocket 60a having the same diameter is integrally formed with the sprockets 60 and 60b, and one of the sprockets 6, 6a and 6b and the other sprocket 60, 60a and 60b have the same configuration. Can be used uniformly.
[0030]
The guide frame 61 is a square pipe, the upper end of which is fixed to substantially the center of a mounting base 61a mounted on the lower end of the side plates 20, 20, as shown in FIGS.
The guide rail 62 has a T-shaped cross section as a whole. In this embodiment, a spacer welded vertically along one surface of the guide frame 61 (one surface opposite to the traveling direction of the vehicle frame 2) as shown in FIG. It is composed of a leg plate 62b that also serves as a plate, and a plate-like flange 62a fixed with a plurality of screws 62c along the top of the leg plate 62b.
[0031]
The elevating frame 63 has a substantially U-shaped cross section, and is attached so as to surround the guide rail 62 in plan view.
Two pairs of rollers 67, 67 and 67, 67 having a flange 67 a are attached to the upper and lower portions of the lifting frame 63 so as to sandwich the flange 62 a of the guide rail 62 inside the both side plates 63 a, 63 a.
A plate 63b to which a support piece 64 is welded so as to project substantially horizontally along the traveling direction of the vehicle frame 2 is attached to the lifting frame 63 by a plurality of screws 63c. Support arms 64a, 64a are attached to both sides of the lower end of the support piece 64 in a projecting manner. The running direction of the vehicle frame 2 is attached to the front end of each support arm 64a via an attachment 64b fixed to the front end. A pair of V-shaped groove-shaped pickup members 65 and 65 facing the side of the V-shaped groove are attached.
[0032]
One of the hoisting chains 66 has one end connected to the upper portion on the base end side of the support piece 64, and the hoisting portion is hung on the sprocket 6 and hangs down in the guide frame 61 formed of a square pipe. A weight 68 is attached to the end so that the chain 66 does not swing.
The other hoisting chain 66a has one end connected to the top end of the support piece 64, and the hoisting portion is hung over the pair of sprockets 6a and 60, and is hung in the guide frame 61. The weight 68 is connected to the other end.
In this embodiment, the rollers 66c (FIGS. 1 and 7) are attached to the side plates 20, 20 so as to face the sprockets 6, 6a, and the chains 66, 66a are lightly sandwiched between the rollers 66c and the sprockets 6, 6a. This prevents the chains 66, 66a from coming off the sprockets 6, 6a when subjected to an external force.
A wire (not shown) can be used for a connection portion of the chain 66 or 66a with the support piece 64.
[0033]
The transfer object of the rail-type transfer device a of this embodiment is a barrel holding frame 8 that holds a plating barrel 80 as illustrated in FIGS. 8 and 9.
The barrel holding frame 8 is formed by connecting vertically parallel side plates 82, 82 at predetermined intervals by a plurality of connection bars 81. A barrel 80 having a polygonal cross section is rotatable to both side plates 82, 82. Are held in a state of being inclined by about 30 ° with respect to the shafts 83, 83 attached to the camera.
A rotary shaft 86 that rotatably penetrates the side plates 82 is attached to an upper portion of the barrel holding frame 8, and the rotary shaft 86 receives a rotational force from a motor (not shown) via a sprocket 87. . Bearing members 86a, 86a for rotatably holding the rotary shaft 86 are attached near both ends of the rotary shaft 86. As described later (FIG. 10), the holding frame 8 holding the barrel 80 is plated. When supplied to the tank c, the bearing members 86a, 86a are placed on the support members 89, 89 on both side edges of the plating tank c, and the holding frame 8 is suspended in the plating tank c in a stable state. Is to be placed.
[0034]
As described above, when the holding frame 8 is supplied to the plating tank and the rotating shaft 86 is rotated by a motor (not shown), the rotation is performed by the row of the gears 8b, 8c, and 8d and the shaft 83 (the right shaft in FIG. 8). Through the barrel 80. The barrel 80 is, for example, continuously rotated in one direction at a reduced speed, or alternately rotated forward and backward in a predetermined angle range.
Attachment plates 85, 85 are fixed to the upper inside of the side plates 82, 82 of the holding frame 8 by connecting pieces 84, 84, and two hook bars 88, 88 are opposed to each of the attachment plates 85, 85, respectively. It is fixed horizontally.
[0035]
When the hoisting device b raises and lowers the holding frame 8, as shown in FIG. 7, the holding frame 8 is picked up with the hook bars 88, 88 placed on the pickup members 65, 65 of the hoisting device b.
When the pickup member 65 is lowered to the lower limit, the pickup member 65 is designed to be lower in level than the hook bar 88 of the holding frame 8.
[0036]
Next, the operation of the rail type transfer device a of this embodiment will be described.
As illustrated in FIG. 10, the transfer device a is used in a plating process in which a plurality of plating baths c are continuously arranged in a certain direction or arranged side by side at predetermined intervals. The plating tank c is installed so as to pass substantially above the center in the width direction of the plating tank c.
Further, the installation position of the above-described detection target 70 with respect to the rail 1 is set such that the vehicle frame 2 stops when the hoisting device b reaches a predetermined position above each plating tank c.
[0037]
Now, the vehicle frame 2 is stopped slightly above the center of one plating tank c, and the barrel 80 held by the holding frame 8 is supplied into the plating tank c. Is rotating and the material inside is being processed. In this state, the holding frame 8 is supported by the bearing members 89, 89 attached to the upper portions of both side edges of the plating tank c via the respective bearing members 86a. The required amount has floated from the bottom.
The processing time in the plating tank c is monitored by a timer (not shown), and when the required processing time elapses, a winding motor 69 is started by a control signal from a control device (not shown) to start the pickup member 65 of the winding device b. Falls to a predetermined level (a level lower than the level of the hook bars 88, 88 of the holding frame 8), the motor 6 stops and the motor 32 for running starts, and the vehicle frame 2 is moved to the holding frame in the plating tank c. Move in the direction of 8.
[0038]
When a sensor (not shown) detects the hook bars 88, 88 of the holding frame 8, the running motor 32 stops, and the winding motor 69 starts in the winding direction, and both hook bars 88, 88 of the holding frame 8 move halfway. When the sensor (not shown) detects that the holding frame 8 has been raised to a predetermined level by the pickup members 65, 65 of the hoisting device b, the motor 69 stops.
At the same time, the traveling motor 32 starts, and the vehicle frame 2 travels in the direction of the next plating tank c for performing the next processing on the material.
[0039]
If the first position detection sensor 7a approaches and detects the next end of the detected object 70, the motor 32 reduces the rotation speed at a predetermined rate to reduce the traveling speed of the vehicle frame 2, and If the second position detection sensor 7b detects the leg 70c at the center of the detected object 70, the motor 32 stops and the vehicle frame 2 stops running.
At the same time, the motor 69 is started, the pickup members 65, 65 supporting the holding frame 8 are lowered, and when the pickup members 65, 65 are lowered to a predetermined lower level, the motor 69 stops. At this time, the rotating shaft 86 of the holding frame 8 is supported by bearing members 89, 89 attached to upper portions of both side edges of the plating tank c via the respective bearing members 86a, and each hook bar 88 of the holding frame 8 is Each of the pickup members 65 is in a state of floating by a predetermined amount.
Thereafter, when the motor 32 starts to rotate in the reverse rotation direction and the respective pickup members 65 have retreated from below the hook bars 88, the motors 32 are stopped, and the pickup members 65 are raised by the motor 69 together with the lifting frame 63 to a predetermined level. And the vehicle frame 2 waits at that position until the next control signal is received.
Hereinafter, the same operation is repeated.
[0040]
The transfer device a of this embodiment has the following operations and effects.
First, the pair of steady rest rollers 5, 5 is attached to each side plate 20, 20 in a state of being pressed against both side surfaces of the vertical trunk 10 of the rail 1 and rolling contact therewith, so that the vehicle frame 2 is running. Can be prevented.
Secondly, the pair of steady rest rollers 5, 5 are provided near and corresponding to the wheels 3, 3 of each pair, so that side contact of the vehicle frame 2 during running can be further prevented. Can be.
Third, the steady rest roller 5 is connected to the vertical body 10 of the rail 1 via the respective roller holders 52 by two upper and lower tubular bolts 54 screwed into the corresponding female screw holes 23 of the corresponding side plate 20. Each roller holder 52 is attached to the side plate 20 by a tightening bolt 55 screwed into the female screw hole 52 a of the roller holder 52 through the tubular bolt 54 from outside the corresponding side plate 20. Further, each tubular bolt 54 is locked to the side plate 20 by a fastening nut 56 screwed to the tubular bolt 54 outside the corresponding side plate 20. Therefore, each of the steady rest rollers 5 can be attached to the corresponding side plate 20 so as to prevent rattling or curling with time and to operate stably.
Fourth, since the holding roller 4 is provided directly below each pair of wheels 3, 3, the traveling of the vehicle frame 2 can be further stabilized, and the device can be made smaller. Can be.
Fifth, since each pair of wheels 3 and 3 rotates at the same peripheral speed while the vehicle frame 2 is traveling, idle rotation and slippage of the wheels 3 can be prevented.
Sixth, when the elevating frame 63 moves up and down, the two flanges 62a and 62a of the guide rail 62 are sandwiched between the pair of rollers 67 and 67 mounted inside the both side plates 63a and 63a of the elevating frame 63. The frame 63 is stably moved up and down in a fixed posture even while holding the barrel holding frame 8 without shaking during the ascent and descent.
Seventh, the base end side of the horizontally projecting support piece 64 is linked to a hoisting chain 66 that is hung on a hoisting sprocket 6 installed above the support piece 64, and the distal end side of the support piece 64. Is connected to another hoisting chain 66a that is hung on another pair of sprockets 6a and 60, one of which is mounted coaxially with the sprocket 6 and the other is installed above the distal end side of the support piece 64. Therefore, the load of the object to be raised and lowered is more evenly applied to the two chains 66 and 66a, and the object can be raised and lowered more smoothly.
[0041]
In the above-described embodiment, the I-shaped member or the H-shaped member is used for the track 1. For example, a T-shaped member can be used in reverse.
[0042]
【The invention's effect】
According to the rail-type transfer device according to the invention of claim 1, a pair of steady rest rollers 5, 5 are provided, and the steady rest rollers 5,While being rotatably held by the U-shaped roller holder 52, each is pressed against the vertical trunk 10 of the rail 1 by a tubular bolt 54 screwed into the female screw hole 23 formed in the corresponding side plate 20, Each of the roller holders 52 is attached to the side plate 20 by a fastening bolt 55 screwed into the female screw hole 52a of the roller holder 52 from the outside of the corresponding side plate 20 through the inside of the tubular bolt 54,Lateral run-out of the vehicle frame 2 during traveling can be effectively prevented.
[0043]
According to the rail-type transfer device according to the invention of claim 2,Since each tubular bolt 54 is locked to the side plate 20 by a fastening nut 56 screwed to the tubular bolt 54 on the outside of the corresponding side plate 20, each steady rest roller 5 is attached to the corresponding side plate 20. The unit plate 20 operates stably without rattling or jarring with time.
[0044]
According to the rail-type transfer device according to the third aspect of the present invention, since the holding rollers 4 are provided so as to correspond directly below the wheels 3 of each pair, the traveling of the vehicle frame 2 can be further stabilized. At the same time, the device can be made smaller.
In addition, since each pair of wheels 3 and 3 rotates at the same peripheral speed while the vehicle frame 2 is traveling, idle rotation and slip of the wheels 3 can be prevented.
[0045]
According to the rail-type transfer device according to the fourth aspect of the present invention, the pair of steady rest rollers 5, 5 are provided near the corresponding pairs of wheels 3, 3 so as to correspond to the wheels 3, 3, respectively. Side contact during running can be more effectively prevented.
[0046]
According to the rail-type transfer device according to the fifth aspect of the present invention, when the elevating frame 63 moves up and down, the pair of flanges 62 a of the guide rail 62 are attached to the inside of both side plates 63 a and 63 a of the elevating frame 63. Of the lifting frame 63 during the ascending and descending, and stably ascends and descends in a constant posture even when the barrel holding frame 8 is held.
[0047]
According to the rail-type transfer device according to the sixth aspect of the invention, the base end side of the horizontally extending support piece 64 is a hoisting chain 66 hung on the hoisting sprocket 6 installed above the support piece 64. One end of the support piece 64 is attached coaxially to the sprocket 6 and the other end is hung on another pair of sprockets 6a and 60 installed above the tip side of the support piece 64. Is linked to the hoisting chain 66a. Therefore, the load of the object to be raised and lowered is more evenly applied to the two chains 66 and 66a, and the object can be smoothly and stably lowered.
[Brief description of the drawings]
FIG. 1 is a partial front view showing an embodiment of a rail-type transfer device according to the present invention.
FIG. 2 is an enlarged cross-sectional view of the rail-type transfer device of FIG. 1 along an arrow AA.
FIG. 3 is a partially enlarged cross-sectional view of the rail-type transfer device of FIG. 1, taken along arrow BB.
FIG. 4 is a partial plan sectional view of the rail-type transfer device of FIG. 1;
FIG. 5 is a partially exploded sectional view of a mounting portion of a steady roller in the rail-type transfer device of FIG. 1;
FIG. 6 is a partially enlarged sectional view of the rail-type transfer device of FIG. 1;
FIG. 7 is a partially enlarged plan cross-sectional view of the rail-type transfer device of FIG. 1, taken along arrow CC.
FIG. 8 is a front view showing a transfer object of the rail-type transfer device of FIG. 1;
FIG. 9 is an enlarged sectional view taken along arrow DD of FIG. 8;
10 is a schematic plan view showing a plating process in which the rail type transfer device of FIG. 1 is installed.
[Explanation of symbols]
a Orbital transfer device
b Hoisting device
1 orbit
10 Vertical part
11 Flange
2 car frame
20 Side plate
21 Connecting bar
22 windows
23 female screw hole
3 wheels
30 Tsuba
30a gear
31 Rotary axis
31a bearing
32 motor
32a output shaft
33 axes
33a bolt part
33b nut
34 sprocket
35 chains
4 Holding roller
40 axes
41 gears
42 Housing
43 Spring
44 Bearing
45 volts
46 Adjustment nut
5 steady rest roller
50 heartwood
51 Elastic layer
52 Roller holder
52a female screw hole
53 axes
54 tubular bolt
55 Tightening bolt
56 Tightening nut
6 Sprockets for hoisting
6a, 60 Other sprockets for hoisting
60a spare sprocket
6b, 60b Sprocket for linking
6c, 60c bearing
6d, 60d rotating shaft
61 Guide frame
61a Mounting base
62 Guide rail
62a flange
62b leg plate
63 Lifting frame
63a Side plate
63b board
63c screw
64 support pieces
64a support arm
64b attachment
65 Pickup member
66,66a Chain for winding up
66b Linking chain
66c roller
67 Guide roller
67a Tsuba
68 weight
69 Hoisting motor
69a Output shaft
7 Position detection sensor
7a First position detection sensor
7b Second position detection sensor
70 Detected object
70a, 70b end
70c Central leg
71,72 attachment
8 barrel holding frame
8b, 8c, 8d gear
80 Barrel for plating
81 Connecting Bar
82 side plate
84 axes
84 connecting piece
85 Mounting plate
86 Rotation axis
86a bearing member
87 sprockets
88 hook bar
89 Supporting member

Claims (6)

A horizontal rail (1) having a flange portion (11, 11) having an inverted T-shaped cross section along the length direction on both lower sides is provided along a row of plating tanks (c) arranged in one direction. Installed in a hanging shape,
A vehicle frame (2) having side plates (20, 20) connected to each other so as to sandwich the rail (1) from both sides, and a hoisting device (b) attached to a lower portion of the rail (1). Installed so that it can run along 1),
At least two locations along the traveling direction of the vehicle frame (2) correspond to the respective pairs of wheels (3, 3) rollingly contacting the upper surface of the flanges (11, 11) along the traveling direction of the vehicle frame (2). To the side plate (20)
A holding roller (4) that rolls along the running direction of the vehicle frame (2) while being pressed against the lower surface of the rail (1) with a predetermined elasticity is attached to the side portions (plates 20, 20).
At least one pair of steady rest rollers (5, 5) is provided in a state of rolling contact with both sides of the vertical trunk (10) of the rail (1) along the traveling direction of the vehicle frame (2),
Each of the steady rest rollers (5) is screwed into a female screw hole (23) formed in a corresponding side plate (20) while being rotatably held by a U-shaped roller holder (52). Pressed against the vertical body (10) of the rail (1) by a tubular bolt (54), each roller holder (52) is passed through the tubular bolt (54) from outside the corresponding side plate (20). The roller holder (52) is attached to the side plate (20) by a fastening bolt (55) screwed into a female screw hole (52a) of the roller holder (52).
Rail type transfer device in plating process. The tubular bolt (54) is locked to the side plate (20) by a fastening nut (56) fastened to the tubular bolt (54) outside the corresponding side plate (20). The rail-type transfer device in the plating process according to claim 1. The holding roller (4) is provided substantially immediately below each pair of wheels (3, 3),
Each holding roller (4) is rotatably mounted on a shaft (40),
Both ends of the shaft (40) of each holding roller are rotatably attached to a housing (42) which is attached to the side plates (20, 20) in a vertically movable state within a predetermined range.
Each housing (42) is urged upward by a spring (43),
A sprocket (34) is provided so as to rotate integrally with one wheel of each pair of wheels (3, 3),
Both sprockets (34) are configured to be linked by an endless chain (35),
Each pair of wheels (3, 3) has circumferentially formed flanges (30) close to or in contact with the outer edges of the corresponding flanges (11), and these flanges (30) are provided with gears (30a). ), And these gears (30a) are respectively meshed with gears (41) fixed to the shaft (40) of the holding roller (4) so as to correspond to the gears. Do
A rail-type transfer device in the plating step according to claim 1. 4. The plating process according to claim 1, wherein the pair of steady rest rollers (5, 5) are installed near the wheels (3, 3) of each pair. 5. Rail-type transfer device. The hoisting device (b) comprises:
A hoisting sprocket (6) attached to a side plate (20, 20) at a lower portion of the vehicle frame 2;
A motor (69) for rotating the hoisting sprocket (6) in a forward or reverse direction;
A guide frame (61) attached to the vehicle frame (2) so as to extend vertically in the vicinity of the sprocket (6);
A guide rail (62) fixed along the guide frame (61) and having flanges (62a, 62a) on both sides along the length direction;
An elevating frame (63), which can move up and down along the guide rail (62) and surrounds the guide rail (62) in a plan view, and has a U-shaped cross section;
Each pair of rollers (which are attached to both side plates (63a, 63a) of the elevating frame (63) and roll on both sides of the flanges (62a, 62a) of the guide rail (62) while sandwiching both flanges (62a, 62a). 67, 67),
Each of the support pieces (64) projecting substantially horizontally to the elevating frame (63) is attached to both sides of the distal end of the supporting piece (64), and is held by hook bars (88) attached to both sides of the barrel holding frame (8). A pickup member (65);
The track in the plating process according to any one of claims 1 to 4, further comprising a chain (66) mounted on the hoisting sprocket (6) to raise and lower the lifting frame (63). Type transfer device. The sprocket (6) is installed above a base end side of the support piece (64),
The hoisting chain (66) is attached to the sprocket (6),
One end of the chain (66) is linked to the base end of the support piece (64), and the other end of the chain (66) is suspended in the guide frame (61) made of a square pipe and weighted. (68) is attached,
One is mounted coaxially with the sprocket (6), and the other is mounted on another shaft parallel to the axis of the sprocket (6) and located above the tip end side of the support piece (64). Further comprising a pair of sprockets (6a, 60),
Another hoisting chain (66a) is mounted on these pairs of sprockets (6a, 60), and one end of the other chain (66a) is linked to the tip of the support piece (64) and The other end of the chain (66a) hangs down in the guide frame (61) and is attached with a weight (68).
A rail-type transfer device in the plating process according to claim 5.

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