JPS5928044Y2 - Barrel type surface treatment equipment - Google Patents

Description

[Detailed description of the invention] In surface treatment equipment that plating or cleaning the workpiece by storing it in a rotating barrel, while the barrel is immersed in the treatment layer in order to ensure uniform treatment, It is a common practice to impart rotational motion to the barrel.

By the way, when transferring the barrel from the processing layer to the next tank, especially if the object to be processed stored in the barrel is a bowl-shaped object, the processing liquid of the processing layer may remain in the barrel. The processing liquid is carried to the next tank, causing loss of the processing liquid and making the processing liquid in the next tank impure, causing deterioration in processing quality.

Therefore, the transfer of the barrel to the next tank was stopped until the processing liquid had finished dropping onto the liquid tank, but it was impossible to almost completely remove the processing liquid remaining inside the object to be processed. On the contrary, this resulted in an increase in process time, resulting in a decrease in processing efficiency.

This invention was made to eliminate the above-mentioned drawbacks.
We propose a barrel-type surface treatment device that allows the barrel to be rotated and drained even after the barrel is lifted from the liquid tank.

Prior to explaining the present invention, an overview of a conventional barrel-type surface treatment apparatus will be explained.

In FIG. 1 I and FIG. 1 (2), reference numeral 2 denotes a main body frame supported by a support stand 1, which is composed of a guide column 3 and upper and lower beam members 4, 5.

Annular rail grooves 6, 7 are installed on the beams 4, 5, and as shown in FIG. , 10.9° 10 are pivoted, and endless chains 11.
Multiplying 12 is passing.

A large number of carriers are fixed in a vertical position at regular intervals between the upper and lower endless chains 11, 12, and each of these carriers 13 accommodates an elevating body 14 that can be moved up and down.

The elevating body has a hanger 15 that horizontally supports the barrel 17.
protrudes outward, and a roller 19 is attached to the inside of the hanger.

Reference numeral 24 denotes an elevating frame whose vertical movement is controlled using the guide column 3 of the main body frame 2 as a guide, and at its front edge there is a support plate facing the lower side of the inner roller 19 of the elevating body 14 housed in each carrier 13. 25 are provided.

26 is a processing liquid layer, which is arranged corresponding to each stop position of the carrier 13 and therefore the barrel 17, and includes a single processing tank 26a corresponding to each stop position and a continuous tank corresponding to several stop positions. The mold treatment tank 26b is mixed and arranged according to the surface treatment process.

The barrel 17 is rotatably supported by a shaft 17 at the lower end of a pair of hanging arms 16, 16 (only both ends are shown in the figure) hanging from the tip of the hanger 15.

A large gear (driven wheel) 1B is fixed to the outside of the barrel 17, and a transmission shaft 2 is rotatably supported in parallel with the hanger 15.
A spiral gear 21 supported at the outer end of the transmission shaft is meshed with the large gear 18 via an intermediate gear 22, and a chain wheel 23 is pivotally supported by being positioned below the roller 19 at the rear end of the transmission shaft. are doing.

A is a chain for driving the barrel, which runs on a rail B stretched over a rail support C by a drive device (not shown).

The chain A meshes with the chain wheel 23 when the barrel 17 is immersed in the liquid tank 26, and as the chain A runs, the transmission shaft 20 rotates, and the spiral gear 21,
The large gear 18 and therefore the barrel 17 rotate via the intermediate gear 22.

When the lifting platform 24 rises and lifts the barrel 17 out of the processing tank 26, the engagement between the chain wheel 23 and the drive chain A is cut off, so the rotation of the barrel 17 comes to a halt, and the remaining particles inside the barrel 17 are disengaged from each other. The treated solution returns to the treatment tank only by natural dripping.

The present invention has a structure in which the barrel of the device exemplified above can be rotated not only inside the processing tank but also outside the processing tank, so that residual processing liquid can be drained at the position where the barrel is pulled up from the processing tank. The purpose is to promote

This embodiment is applied to the conventional device, and its embodiments are shown in FIGS. 2 to 8.

Among the figures, Figure 1 1. The same symbols as those given to rivers are shown in Figure 1.1. Same as River I.

Reference numeral 31 denotes an elevating body 1 that rises in conjunction with the upward movement of the elevating frame 24.
This is a driving mechanism that rotates the barrel 17 lifted from the processing liquid tank 26 by the hanger 15 of No. 4 even when the barrel 17 is lifted up, and as shown in FIG.
4, and is fixed horizontally to the lower end of a plurality of hanging rods 32, each having a locking collar 33 at the upper end.
The drive motor 35 and the support shafts 37.37 on both sides are attached, and an endless drive chain 739 is attached to the chain gear 36 fixed to the main shaft of the drive motor 35 and the chain gear 38° 38 loosely fitted to the support shaft 37.37. , and the gear 23 of the transmission shaft 20 is engaged with the upper running portion thereof.

(Fig. 4) In the Eiken type processing liquid tank 26b, it is necessary to avoid lifting the barrel 17 from the processing liquid tank 26b by raising the elevating body 14 in conjunction with each rise of the elevating frame 24. As shown in FIG. 4, the hanging jaw plate 25 of No. 24 is formed with a large portion 25a corresponding to the Eiken type processing liquid tank 26b, and a large portion 25a is formed at the end of the large portion 25a in the direction of entry of the roller 19 as shown by the arrow line. A first movable hanging jaw piece 28 that springs up as shown in the figure is supported by a weight, a spring, etc. 27, and a spring 290 is normally held in a horizontal position at the retracting end as shown in the figure. A second movable hanging jaw piece 30 that can be flipped up at any time is provided as before, and a pin gear 41 driven by a motor 40 installed on the beam member 5 is provided at the lower part of the first movable hanging jaw piece 28. 23 is made to engage when descending together with the elevating body 14 and the like.

Further, at the bottom of the second movable hanging jaw piece 300, the output shaft of the motor 42 is mounted so as to be freely retractable inward on the base plate 34 which moves up and down along with the elevating frame 24 as described above. 4
The gear 23 is meshed with a pin gear 44 (a type of driving mechanism 31) fixed to the gear 3.

The pin gear 44 retreats to a position where it does not engage with the gear 23 when the motor 42 is retracted.

The above is a case where the Eiken type processing liquid tank 26b has a length equivalent to two tanks of the short tank type processing liquid tank 26a, and the processing liquid tank 2
When the length of the second movable jaw piece 30 is equal to or longer than three processing liquid tanks 26a, the second movable hanging jaw piece 30 is installed on the beam 5 and does not move when the elevating frame 24 is raised. The design is changed so that the gear 23 is driven by a chain similar to the endless drive chain 739 described above except for the lower part.

To explain the operation of this embodiment, while each barrel 17 is lowered into the processing liquid tank 26, the gear 23 is moved by the endless drive chain 739,
The drive mechanism 31 such as the pin gear 41 and the pin gear 44 rotate to drive the transmission shaft 20, thereby rotating each barrel 17 reversibly or unidirectionally to stir the contents.

When the elevating frame 24 rises over a certain period of time, the engagement collar 33 of the hanging rod 32 engages with the elevating frame 24 a little later than the start of the rise, so that the platform engaged with the hanging rod 32 The plate 34, the drive motor 35, the motor 42, the endless drive chino 39, the pin gear 44, etc. are raised as shown in FIGS.

Therefore, the roller 1 of the engaging flange plate 25 and the second movable hanging jaw piece 30
9 and the lower surface of the locking flange 33 of the elevating pedestal 24 are almost at the same time, so that each carrier 13 and barrel 17 rise, and the endless drive chino 39 and pin gear 44 The barrel lifted from the processing liquid tank 26 continues to rotate reversibly or in one direction, and while draining the processing liquid adhering to the contents, etc., the barrel is lifted up from the processing liquid tank 26 at the same time. The barrel 17 is moved onto the next processing liquid tank 26, and the elevating frame 24 is lowered by the force of the momme to submerge the barrel 17 into the processing liquid, and the stirring rotation begins.

In the Eiken type processing liquid tank 26b, the roller 19, which moves together with the carrier 13 and the elevating body 14, horizontally tilts the first movable hanging jaw piece 28 and rides on it, and the barrel 17 into the Eiken type processing liquid tank 26b, the jaw pieces 28 will spring upward at the lowest point of descent, so even if the elevating frame 24 rises next, the rollers 19 will correspond to the entry portions 25a, so the hangers 15 and The barrel 17 does not rise, and the barrel 17 moves while immersed in the processing liquid tank 26b only when the carrier 13 is moved by the chenographs 11 and 12.

When the roller 19 moves below the second movable hanging jaw piece 30, the elevating frame 24 is rising;
At that time, since the pin gear 44 and the motor 42 are moving up in conjunction with the elevating frame 24, the gear 23 is not driven and the barrel 17 is stopped.

Immediately after the movement, the elevating frame 24 is moved to the base plate 34.
Since the upper motor 43 and the pin gear 44 are moved to the retracted position and lowered, the pin gear 44 descends together with the elevating frame 24 and the like without contacting the gear 23 which remains in the lowered position, and moves to the second movable latch. The jaw piece 30 is also raised and lowered by the roller 19, which is still in the lowered position, and at the extreme point of its descent, it returns to the horizontal position and is located below the roller 19.

On the other hand, the motor 42 moves forward from the retracted position when the lifting platform 24 finishes lowering, engages the pin gear 44 with the lower surface of the gear 23, and resumes rotation of the transmission shaft 20 and the barrel.

Then, when the elevating frame 24 is next raised, the roller 19 mounted on the second movable hanging jaw piece 30 is raised in conjunction with the movement, so that the barrel 17 at the bottom of the hanging jaw piece 30 also rises together with the elevating body 14, etc. The liquid is removed from the processing liquid tank 26b by the interlocking rotation of the gear 23 by the pin gear 44, as described above.

As clarified in the above explanation, the present invention is based on the gear '123.
A driving mechanism 3 having a motor 35 such as a driving chain 7 that meshes with the
1 is attached to the elevating frame 24, and as the elevating frame 24 rises, the gear 23 and the driving mechanism 31 rise while maintaining meshing, so that even if the barrel 17 escapes upward from the processing liquid tank 26, it will not rotate. Since the processing continues, the object to be processed in the barrel 17 rolls on the processing liquid tank, and the liquid is often drained, resulting in loss of processing liquid and mixing of the processing liquid in the previous tank with the processing liquid in the next tank. It has excellent effects such as preventing the occurrence of oxidation and improving processing quality.

[Brief explanation of the drawing]

Fig. 1 I is a plan view showing an outline of a conventional barrel-type surface treatment device, Fig. 1 ■ is a cutaway plan view of the same part, Figs. FIG. 3 is a longitudinal sectional side view of the main part, FIGS. 4 and 5 are partial front views, FIG. 6 is an enlarged front view of the first movable jaw piece 28 and the second movable jaw piece 30, and FIG. 7 8 is a side view of the motor 42, and FIG. 8 is a partially cutaway front view of the pin gear 44. 2 → Main body frame, 3 → Guide column, 13 → Carrier, 14 → Elevating body, 15 → Hanger, 17 → Barrel, 17' → Axis, 1
9→roller, 20→transmission shaft, 23→gear, 24→elevating frame, 26→processing liquid tank, 31→driving mechanism.

Claims (1)

[Scope of utility model registration request] In a plurality of carriers 13 that move along the main body frame 2, an elevating body 14 that moves up and down as the elevating frame 24 moves up and down is provided, and a plurality of processing liquid tanks 26 are further arranged in the moving direction of the carriers 13. , a hanger 1 protruding from the elevating body 14
A barrel 17 is suspended from the barrel 17, and a transmission shaft 20 that drives a driven gear 18 fixed to the side of the barrel is rotatably held horizontally on the elevating body 14, and a chain is attached to the rear end of the transmission shaft 20. A barrel type surface treatment apparatus comprising a driving mechanism 31 including a drive chain meshing with a wheel 23 and a drive motor 35 for driving the drive chain, attached to an elevating frame 24.