JPH07207498A - Oscillation type plating barrel - Google Patents

Abstract

PURPOSE:To unnecessitate the picking-up of a stroke center of an oscillation chain by providing the teeth of an oscillation gear installed in a barrel body by one stroke for oscillating a barrel body. CONSTITUTION:Plating is performed while a barrel body 4 housing an article to be plated is oscillated in a plating bath. In the oscillation type plating barrel 1, an oscillating chain 24 is reciprocated to generate torque in an oscillation side driving shaft 22 through a sprocket 23 engaged with the chain. The torque is transferred to an oscillating gear 19 through the oscillation side driving gear 21 and a movable gear 20 to oscillate the barrel body 4. The oscillating gear 19 fitted to the barrel body 4 of the oscillation side gear mechanisms is sectorally 19 chipped off to form a gear. The formed gear is provided by one stroke for oscillating the barrel body 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rocking type plating barrel used for electroplating an article to be plated.

[0002]

2. Description of the Related Art There are two types of plating barrels, one of which rotates in a plating tank to plate an article to be plated, and the other of which rotates left and right without rotating. The present invention is
The latter is a swinging type barrel for plating.

The barrel body of a conventional swing-type plating barrel has an upper portion opened without a lid, and a swing gear for swinging the barrel body is attached to one end. The swing gear is in mesh with the drive gear either directly or through the idle gear. A sprocket is attached to one end of a drive shaft provided with a drive gear and meshes on a swinging chain that reciprocates for a certain stroke.
The force of the reciprocating rocking chain is first transmitted to the sprocket and then to the rocking gear via the drive shaft, drive gear, and idle gear, and plating is performed while rocking the barrel body in the forward and reverse directions. .

[0004]

When the plating barrel is placed in the plating tank, it is a problem if the sprocket of the plating barrel is placed on the center of one stroke of the swinging chain (hereinafter referred to as the stroke center). However, if the sprocket is placed at a position displaced from the stroke center of the swing chain, for example, at the end, the barrel body will move for one stroke length, so the barrel body will rotate too much and the opening will cause plating. Items may spill. Moreover, this state will continue unless the plating barrel is placed on the stroke center of the swing chain.

Therefore, when the plating barrels are sequentially placed in the plating tank, it is necessary to stop the plating device, pick up the stroke center of the swinging chain, and engage the sprocket of the plating barrel at that position. , Very inefficient. Also, in the case of fully automatic plating equipment,
A device for picking up the stroke center of the swinging chain must be provided and positioned, which increases the cost of the device.

An object of the present invention is to provide an oscillating plating barrel for solving the above conventional problems.

[0007]

In the swinging type plating barrel of the present invention, the teeth of the swinging gear provided on the barrel body are provided for one stroke for swinging the barrel body.

The swing type barrel for plating of the present invention is
A clutch mechanism is provided between the swing-side drive shaft that swings the barrel body and the fall-side drive shaft that falls the plating barrel, to weakly transmit the torque of the fall-side drive shaft to the swing-side drive shaft. .

Further, the rocking gear and the tumbling gear are provided on the barrel main body in a superposed manner or close to each other, and both the oscillating gear and the tumbling gear or only the oscillating gear can be selected and meshed. The switching gear is axially supported on the switching gear shaft that slides in the axial direction, and biasing means for biasing the switching gear shaft in one direction is provided so that the switching gear meshes only with the swing gear. Sliding means for sliding the switching gear shaft in the other direction is provided so that the switching gear meshes only with the swing gear and meshes with both the swing gear and the tipping gear.

[0010]

In the above structure, when the barrel for plating is placed in the plating tank or the like when the swing-side drive shaft that rotates in the forward and reverse directions by one stroke is not in the normal position,
When the other gear that meshes with the oscillating gear idles, at least the one-stroke rotation of the oscillating side drive shaft ends, and the opposite movement starts, the oscillating gear meshes at the normal meshing position, and thereafter Repeat normal rocking motion.

Further, when the barrel main body is turned over to take out the plated article for which plating treatment has been completed from the barrel main body, when the barrel main body is returned to its original state, the teeth of the swing gear mesh with each other. There is a risk of riding on the gear and not meshing properly. Therefore, the torque of the rolling-side drive shaft is weakly transmitted to the rocking-side drive shaft by the clutch mechanism, and the rocking gear and other gears are synchronized with each other to establish a normal meshing state.

Further, if the rocking gear and the tipping gear are provided on the barrel body so as to be superposed or close to each other and the pitches of the rocking gear and the tipping gear are made equal, the rocking gear can ride on the switching gear. Without, the rocking gear surely meshes with the switching gear.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a view showing the use state of the plating barrel of the present invention. In this figure, reference numeral 1 indicates a plating barrel, and the plating barrel 1 is placed on a plating tank 3 via a support bar 2 and the barrel main body. 4 is immersed in the plating tank 3. Reference numeral 5 is a stopper attached to the support bar 2. A plurality of processing tanks are arranged in series before and after the plating tank 3, and the plating barrel 1 is successively immersed in the plating tank 3 and the processing tanks. It is the carrier 6 that conveys the plating barrel 1, and has the locking portion 8 at the lower end of the arm 7, and the locking portion 8 and the engagement formed on the barrel frame 9 of the plating barrel 1. The plating barrel 1 that has been engaged with the portion 10 and has been treated in the plating tank 3 is pulled up and moved to the next tank. In FIG. 1, 12 is an axle, 1
Reference numeral 3 indicates a wheel.

FIG. 2 is a perspective view of the barrel main body of the plating barrel. The barrel main body 4 is made of a vinyl chloride plate (however, the material is not limited to vinyl chloride), and is a squarely bent wall plate 14. The disk-shaped side plates 15 are provided at both ends of the tongue to form a cage, but the upper opening 16 is not provided with a lid. Each of the vinyl chloride wall plates 14 has a large number of small through holes 17 formed on the entire surface of the wall plate 14 so that the plating liquid can pass through and the liquid can be drained well. The shaft 18 is inserted through the central portion of the barrel body 4, and an electrode (not shown) for passing a current is attached to the central portion of the barrel body 4, and a terminal for passing a current to the electrode is attached to an end of the shaft 18. Has been. On the right side plate 15A of the barrel body 4, a fan-shaped swing gear 19 lacking an angle of 140 degrees is attached. However, the angle of the swinging gear 19 is not limited to 140 degrees.

The barrel body 4 is pivotally supported on the lower portion of the barrel frame 9. An oscillating side idle gear 20 and an oscillating side drive gear 21 are further pivotally supported above the oscillating gear 19 of the barrel frame 9, and FIG. 3 shows a meshed state of these gears. In this swing-side gear mechanism, the swing gear 19 meshes with the swing-side idle gear 20, and the swing-side idle gear 20 meshes with the swing-side drive gear 21. Swing-side drive gear 21
Is provided on the swing-side drive shaft 22, and the drive shaft 2
A swing-side sprocket 23 is provided at one end of 2.
The rocking side sprocket 23 is a rocking chain 24 that reciprocates in the front-rear direction (left-right direction in FIG. 3).
It meshes from above.

The left side plate 15B of the barrel body 4 is provided with a tumbling gear 25 for rotating and tumbling the barrel body 4 in order to take out the article to be plated after the plating process from the opening 16. This overturning gear 25 is a normal gear having teeth all around, and FIG.
5 shows the meshed state of No. 5. The tipping gear 25 meshes with a tipping side idler gear 26 pivotally supported on the barrel frame 9, and the idler gear 26 meshes with a tipping side drive gear 27. The falling-side drive gear 27 is provided on a falling-side drive shaft 28 that is pivotally supported by the barrel frame 9.
Has a sprocket 29 on the falling side at one end thereof. The overturning side sprocket 29 meshes with a reversing gear (not shown) for overturning the barrel body 4 and taking out the article to be plated at the final stage of the processing tank.

The swing side drive shaft 22 and the fall side drive shaft 28
Are rotated and rotated independently of each other. The swing side drive shaft 22 and the fall side drive shaft 28 are provided with a clutch mechanism 30 as shown in FIG. In this clutch mechanism 30, a spring 31 is interposed between the rocking side drive shaft 22 and the falling side drive shaft 28, and the torque of the falling side drive shaft 28 is weakened and transmitted to the rocking side drive shaft 22. This torque transmission force can be changed by changing the biasing force of the spring 31.

A weight 32 is attached to the bottom of the barrel body 4 in the longitudinal direction of the barrel body 4. The weight 32 is attached to correct the tilt when the barrel body 4 is mounted on the plating tank 3 in a tilted state.

Next, the operation of the above configuration will be described. An article to be plated is put in the barrel body 4, the barrel 1 for plating is lifted by the carrier 6, and the barrel 1 is transported and placed on the plating tank 3. In FIG. 3, the meshing positions of the rocking chain 24 and the rocking side sprocket 23 in the mounted state are random, and the rocking side sprocket 23 may mesh with the stroke center of the rocking chain 24. However, they may mesh when approaching the right end or approaching the left end. The rocking side sprocket 23 is a rocking chain 24.
When meshing with the stroke center of
Since the center of the rocking gear 19 and the rocking-side idle gear 20 mesh with each other as shown in FIG. 3, the rocking gear 19 is driven by the rocking-side drive. The barrel body 4 swings at an appropriate angle by rotating half through the gear 21 and the swinging idler gear 20, and the article to be plated does not spill from the barrel body 4.

However, when the swinging chain 24 comes to the rightmost or leftmost end, if the swinging side sprocket 23 meshes, the swinging chain 24 will move by one stroke, and the swinging gear 24 will move. 19 is rotated by half of 140 degrees, that is, 70 degrees, and thereafter, the rocking gear 19 and the rocking side floating gear 20 are not meshed with each other, and the rocking side floating gear 20
Only idle. Then, when the one-stroke motion of the rocking chain 24 ends and the reverse motion is started, the rocking gear 19 and the rocking side free gear 20 mesh at a normal meshing position, and thereafter, the normal rocking motion is performed. Will be repeated. During this series of movements, the weight 32 moves the swinging gear 19
Since the swinging side idler gear 20 acts so that the swinging side idler gear 20 idles while maintaining a state in which the swinging side idler gear 20 and the swinging side idler gear 20 are in contact with each other, when the one-stroke motion of the swinging chain 24 ends and the reverse motion starts, The oscillating gear 19 and the oscillating side idler gear 20 surely mesh with each other.

In the above description, the misalignment between the rocking chain 24 and the rocking sprocket 23 has been described, but the misalignment may also occur between the rocking gear 19 and the idle gear 20. That is, in the barrel main body 4 by the weight 32, the central portion of the swinging gear 19 normally meshes with the swinging side idle gear 20 as shown in FIG. When the barrel main body 4 tilts when it is biased, the swinging gear 19
And the oscillating side idler gear 20 is displaced and the idler gear 2
0 may rotate excessively, but in that case as well, the idle gear 20 idles and returns to the normal meshing position.

In this way, even if the meshing state of the swinging chain 24 and the swinging side sprocket 23 or the swinging gear 19 and the swinging side idle gear 20 is poor, the swinging side idle gear 20 idles and swings. The gear 19 and the rocking-side floating gear 20 normally mesh with each other, and thereafter, the normal rocking motion can be repeated. Therefore, there is no need to pick up the stroke center of the swinging chain 24 to engage the swinging side sprocket 23, and no device for picking up such a stroke center is required at all.

After the object to be plated has been plated, when it is taken out of the plating barrel 1, the carrier barrel 6 inverts the plating barrel 1 at the end of the processing tank, that is, the barrel body 4 (not shown). No.) is moved to a certain position, the reversing gear and the sprocket 29 on the inversion side are meshed with each other, and the reversing gear is rotated to rotate the barrel body 4 by 180 degrees. Place the plated article in a separate container.

However, when the barrel main body 4 is turned over, the barrel main body 4 largely rotates, but when the barrel main body 4 returns to the original state, the swinging gear 19 moves the swinging side free gear 20 as shown in FIG. There is a possibility that the rocking side floating gear 20 and the rocking gear 19 may not normally mesh with each other. Therefore,
As shown in FIG. 6, the torque of the rolling-side drive shaft 28 is weakly transmitted to the rocking-side drive shaft 22 by the clutch mechanism 30 so that the rocking gear 19 does not ride on the idle gear 20. Synchronize the gears of and bring them into a normal meshing state.

In the above embodiment, the swing gear 19 is a fan-shaped gear, but it is not limited to such a gear, and the swing gear 19 may lack only teeth. Further, in the above embodiment, the swinging chain is used as the swinging means, but a gear may be used instead of this swinging chain.

Further, the clutch mechanism 30 of the above embodiment.
A spring 31 is interposed between the rocking side drive shaft 22 and the tumbling side drive shaft 28. However, the clutch mechanism 30 is not limited to such a configuration, and the rotational torque of one shaft is The mechanism does not matter as long as it can be weakly transmitted to the other shaft.

The oscillating drive gear 21 and the oscillating gear 1
Although the oscillating side idle gear 20 is interposed between the oscillating gear 9 and the gear 9, the oscillating gear 20 is not always necessary, and the drive gear 21 and the oscillating gear 19 may be directly meshed with each other.

In the above embodiment, the clutch mechanism 30 is used to synchronize the rocking gear 19 with the other gear 20, but
FIG. 7 shows another plating barrel that does not require a clutch mechanism.

In the plating barrel of this embodiment, as shown in FIG. 8, a tipping gear 34 is provided on the outside of the right side plate 33, and a swinging gear 35 is superposed on the tip of the tipping gear 34. It is provided. However, both gears 3
It is also possible to bring 4, 35 close to each other without overlapping. A switching gear 36 that can mesh with both the overturning gear 34 and the swinging gear 35 is provided on the switching gear shaft 37. The switching gear shaft 37 can slide in the axial direction, and can be moved in the axial direction by a pusher (slide means) 38 that slides the switching gear shaft 37 in the other direction. A sprocket 39 is attached to the end of the switching gear shaft 37, and the sprocket 39 and the drive pin wheel 40 mesh with each other. However, drive pin wheel 40
A normal gear may be used instead of. A spring (biasing means) 42 is attached to the switching gear shaft 37 outside the barrel frame 41.
And a stop plate 43 are provided to bias the switching gear shaft 37 in one direction so that the switching gear 36 normally meshes only with the swing gear 35.

When the plating barrel having the above-mentioned structure is mounted on the plating tank and rocked, only the switching gear 36 and the rocking gear 35 mesh with each other as shown in FIG. Sprocket 39, switching gear shaft 37, switching gear 36,
The barrel main body 44 is rocked by being transmitted to the rocking gear 35.

When the object to be plated is removed from the plating barrel after the plating is finished,
The switching gear shaft 37 is slid in the other direction (the direction of arrow A in FIG. 7). Since the thrust load of the switching gear shaft 37 is relatively small, the switching gear shaft 37 moves in the arrow A direction with a relatively weak force. The switching gear 36 meshes with both the swing gear 35 and the tipping gear 34, and the tipping gear 34 is rotated by the rotation of the drive pin wheel 40, and at the same time, the barrel body 4 is rotated.
4 is rotated 180 degrees, and the article to be plated after the plating process is taken out from the opening.

After the article to be plated is taken out, the inversion gear 34 is rotated in the reverse direction to return it to the original state.
5 and the tooth pitch of the tipping gear 34 are the same, the swinging gear 35 does not ride on the switching gear 36,
The swing gear 35 surely meshes with the switching gear 36. Therefore, the clutch mechanism may be omitted.

In the above-mentioned plating barrel, the switching gear 36 is directly meshed with the swing gear 35, but a floating gear may be interposed. In that case, the idle gear serves as the switching gear 36.

[0034]

As described above, in the rocking type plating barrel of the present invention, the rocking chain can make a normal reciprocal engagement by picking up the stroke center of the rocking chain by making one reciprocation of the rocking chain. Therefore, it is not necessary to pick up the stroke center of the swinging chain that swings the plating barrel to mount the plating barrel, and a device for picking up such a stroke center is not required at all.

Further, by providing a clutch mechanism between the rocking side drive shaft and the tipping side drive shaft to weakly transmit the torque of the tipping side drive shaft to the rocking side drive shaft, the teeth of the rocking gear mesh with each other. No more riding on other gears.

Further, by virtue of the structure in which the rocking gear and the tipping gear are superposed on or close to each other in the barrel body, and the pitches of the rocking gear and the tipping gear are the same, the rocking gear becomes a switching gear. The rocking gear is reliably meshed with the switching gear without riding up.

[Brief description of drawings]

FIG. 1 is a front view of a rocking type plating barrel according to an embodiment of the present invention in use.

FIG. 2 is a perspective view of a barrel body.

FIG. 3 is a right side view of the plating barrel.

FIG. 4 is a left side view of the plating barrel.

FIG. 5 is a sectional view of a clutch mechanism.

FIG. 6 is a right side view showing a state in which the swing gear is riding up.

FIG. 7 is a front view of a swing type plating barrel according to another embodiment of the present invention in use.

FIG. 8 is a partial schematic view of another embodiment of the present invention.

[Explanation of symbols]

 1 Plating barrel 3 Plating tank 4 Barrel body 19 Swing gear 20 Swing side idle gear 21 Swing side drive gear 22 Swing side drive shaft 23 Swing side sprocket 24 Swing chain 25 Falling gear 26 Falling side idler gear 27 Falling side drive gear 28 Falling side drive shaft 29 Falling side sprocket 30 Clutch mechanism 32 Weight 34 Falling gear 35 Swing gear 36 Switching gear 37 Switching gear shaft 38 Pusher (sliding means) 42 Spring (biasing means)

Claims (4)

[Claims] 1. A swinging type barrel for plating an article to be plated while swinging a barrel main body accommodating the article to be plated in forward and reverse directions and swinging in a plating bath, wherein Of the rocking side gear mechanism for transmitting torque to the barrel body, the rocking gear teeth provided on the barrel body are provided for one stroke for rocking the barrel body. Type plating barrel. 2. An oscillating type barrel for plating, wherein the oscillating gear according to claim 1 is formed by cutting out into a fan shape by one stroke for oscillating the barrel body. 3. A swing-side drive shaft for swinging the barrel body,
A clutch mechanism that weakly transmits the torque of the fall-side drive shaft to the swing-side drive shaft is provided between the plating-side finished product and the fall-side drive shaft that falls over the plating barrel to take out the plated object from the barrel body. The swing type barrel for plating according to claim 1 or 2, characterized in that. 4. An oscillating gear barrel for swinging a barrel body accommodating an article to be plated in forward and reverse directions to oscillate in a plating bath to plate the article to be plated. And the tipping gear are overlapped or provided close to each other, and a switching gear that can be meshed by selecting either both the gear for rocking and the tipping gear or only the gear for rocking is switched to slide in the axial direction. A biasing means is provided that is pivotally supported on the gear shaft and biases the switching gear shaft in one direction so that the switching gear meshes only with the rocking gear.The biasing means causes the switching gear to mesh only with the rocking gear. An oscillating plating barrel, characterized in that slide means for sliding the switching gear shaft in the other direction is provided so as to mesh with the oscillating gear and the tumbling gear.