JPH0415334Y2 - - Google Patents

Description

[Detailed description of the invention] This invention fills and fixes the dense and dense parts such as pinholes that occur in porous objects such as cast products, sintered products, and synthetic resin molded products with an organic synthetic resin impregnating liquid to create a homogeneous product. This invention relates to an automatic basket attachment/detachment device in a fully automatic continuous impregnation facility for porous objects.

Conventionally, in the above-mentioned type of continuous impregnation processing equipment, the impregnation liquid is impregnated under vacuum into the coarse and dense parts of a porous object in an impregnation tank containing an organic synthetic resin impregnation liquid, and then the impregnation liquid is impregnated under pressure under vacuum. The following processing steps were performed using separate and independent linearly arranged equipment or devices.

(1) Remove and collect excess impregnating liquid adhering to the surface of the porous object or the object to be treated in a liquid recovery tank.

(2) In the first washing tank, the impregnated product is made into a concentrated waste liquid by water bath jet or air agitation.

(3) Process in the same manner as before in the secondary washing tank to make a diluted solution.

(4) The impregnated product was circulated in boiling water while controlling the hot water level in a thermosetting tank equipped with a preliminary tank.
Harden the impregnation solution in a hot water bath at 98℃.

(5) Remove the hot water adhering to the impregnated product using a drainer.

Therefore, in the conventional method, for example, a unit of equipment or equipment 6 arranged in a linear manner is required for the above-mentioned five-step process, and the loading and unloading of the processed material for each process relies on manual labor using a hoist. At present, there is still plenty of room for improvement in equipment costs, operability, safety, labor saving, etc.

Therefore, the present invention aims to provide an automatic basket attachment/detachment device for automatically loading and unloading the objects to be processed for each process.
The gist of this is that the lower part of the insertion mandrel is attached to the free end of the lifting and lowering frame, which is attached to the monopole of the monopole swinging lift so that it can be raised and lowered and rotated by the frame lifting and lowering mechanism and the frame turning mechanism. A guide shoe integrally formed with a rib support ring having a plurality of ribs formed at equal intervals on the inner wall is fixed to the inner wall, and a detachable claw for the basket that rotates in a vertical plane is attached to these ribs by means of a pin. A rib formed at the lower part of the actuating rod which is pivotally mounted and movable up and down on a guide provided in the mandrel, and the detachable claw are drivingly connected to each other by a link plate, and the lower part of the insertion mandrel is The invention consists in that an escape groove is carved around the periphery when the above-mentioned detachable claw is erected, and thus, according to the present invention, the lift can be attached to the free end of the elevating and descending revolving frame forming the monopole revolving lift, and the lift Since the basket can be easily attached and detached automatically by the lifting and lowering motion of the Since it can be reliably attached or detached due to the inverted position, the workability can be improved and the work efficiency can be improved.

Next, the present invention will be explained in more detail with reference to an embodiment shown in FIGS. 1 to 5.

In FIG. 1, reference numeral 1 indicates a loading or unloading zone for porous objects or objects to be processed located on the impregnation treatment line; 2 indicates an impregnation tank that communicates with an impregnating liquid supply tank (not shown); and 3 1 is a liquid drainer using an intermittent rotation system, 4 is a first washing tank, 5 is a secondary washing tank, 6 is a thermosetting tank equipped with a spare tank (not shown), and 7 is a water drainer using an intermittent rotation system. These units are arranged in a concentric circle around a monopole swing lift 8, and the units are arranged concentrically around a monopole swing lift 8, and the units are placed between the loading or unloading zone 1 on the impregnation treatment line and the conveyor 9. The pole swing lift 10 is used to load and unload workpieces between the unloading zone 11 and the loading zone 12 on the production conveyor line and the aforementioned loading or unloading zone.

In addition, an impregnating liquid containing acrylic as a main component and containing no surfactant is stored in the impregnating liquid supply tank, and is kept at a temperature of 5 to 15°C by appropriate cooling means, and the impregnating liquid is stored in the impregnating liquid supply tank. Tank 2 (pressure 10
Kg/cm ² ) is equipped with a clutch door type lid that can be opened and closed freely, and these two tanks are connected through appropriate pipes. A cylindrical movable body that can rotate and oscillate at the same time is provided in the liquid drainer 3, and the impregnating liquid recovered by this is fed back to the impregnating tank, and is used as a primary cleaning tank. 4 and the secondary washing tank 5 have almost the same structure and function, and wash the impregnated material with an oscillating underwater jet generated by the vertical movement of the monopole swing lift 8. They are communicated with each other by appropriate pipes. The thermosetting tank 6, which is equipped with a preliminary tank (not shown), hardens the impregnating liquid stored therein in a hot water bath of approximately 90 to 98°C in which hot water is circulated while controlling the hot water level. The drainer 7 has an intermittent rotation type structure and removes hot water adhering to the impregnated product.

Next, as shown in FIGS. 2 and 4, the monopole swing lift 8 is mainly composed of an elevating revolving frame 13, a frame elevating mechanism 14, a frame rotating mechanism 15, a base 16, etc. The frame itself does not rotate, but is attached to a monopole 19 having a rectangular cross section via a pair of guide rollers 17 and 18 so that it can be raised and lowered.
In addition, the outer guide roller pairs 18 are each mounted on one other support shaft 21, so that the elevating rotating frame moves up and down without rotating independently, and the elevating rotating frame An automatic attachment/detachment device 23 for a basket 22 for storing objects to be processed is attached to the free end of the basket.

The automatic basket attachment/detachment device 23 according to the present invention includes:
As shown in detail in FIG. 5, an insertion mandrel is fixed at its upper end to the free end of the lifting pivot frame 13 and has an inverted frusto-conical guide shoe 24 at its lower end and a rib support ring 25 integral therewith. 2
6 and a removable claw 28 which is pivotally mounted on the rib 27 of the support ring and rotates in a vertical plane. Sliding actuating rod 31 and the lower part of the rod and detachable claw 2
In this case, the ribs 27 of the support ring 25 are arranged at equal intervals in a Y-shape (see FIG. 7), and these ribs 27 have attachment/detachment claws. 28 are each pivotally installed via a pin 33, and each of these attachment/detachment claws 28 is connected to a Y-shaped rib 34 formed below the actuating rod 31 via a link plate 32 (see FIG. 6). At the same time, above the ribbed support ring 25 and around the bottom of the insertion mandrel 26, relief grooves 35 are cut in a Y-shaped arrangement to allow the upright position by the link movement of the attachment/detachment claw 28. There is.

Next, the elevating mechanism 14 of the elevating and rotating frame 13
As shown in FIG. 2, the monopole 19 is composed of a hydraulic cylinder 36 pivotally installed along the lower end of the monopole 19 and a rod 37 having one end drivingly connected to the lower support shaft 20 of the pair of guide rollers 17. The rotating mechanism 15 of the lifting/lowering rotating frame includes a deceleration motor 39 placed on a pedestal 38, a drive gear 40 directly connected to the deceleration motor 39, and a drive gear 40 that meshes with the gear and is connected below the monopole 19 via a flange 41. The monopole is constructed from a driven gear 42 which is integrally attached, and the monopole is erected on the base 16 via a suitable thrust bearing (not shown) so as to be freely pivotable. Further, as shown in FIGS. 8 and 9, a circular lid 43 is attached to the basket 22 for storing the objects to be treated or impregnated objects so that it can be opened, closed, or locked using a hinge 44 and a lock fitting 45. A stopper ring 46 is provided at the center of the stopper ring 46 for cooperating with the attachment/detachment pawl 28 of the insertion mandrel 26.

Next, the monopole swing lift 1 to be placed inside the production conveyor line of the conveyor 9
0 has exactly the same structure as the monopole swing lift 8, so a detailed explanation will be omitted, and it shows the loading and unloading state of the unloading zone 11 and the loading zone 12 on the conveyor line for producing the object to be treated or the impregnated object. is exactly the same as the loading or unloading condition of the loading or unloading zone 1 on the circumferential impregnation line, so
A detailed explanation will be omitted and the loading and unloading operations on the impregnation line will be described below.

Thus, as an example of the fully automatic continuous impregnation equipment having the above structure, an aluminum die-cast product (cylinder head for an automobile) will be described as follows.

First, check not only the surface but also the inside of the defective hole to see if oil, water, etc. have adhered to the porous object or the object to be treated (automobile cylinder head), and if so, pre-treat the object. As a process, degreasing is performed by means well known per se (immersion in degreasing solution for 2 to 5 minutes),
No washing with water (immersion in clean water for 2 minutes), rust prevention (immersion in anti-rust solution for 2 to 5 minutes), and drying with hot air (120℃)
1 to 2 hours) and let it cool naturally until it can be touched by hand.

Next, about 80 cylinder heads that have been pretreated as described above or that do not require pretreatment are stored in the basket 22, and placed in the loading zone 1 shown in FIGS. 1 and 4. As shown in the figure, the hydraulic cylinder 36 of the frame lifting mechanism 14
When the lifting/lowering revolving frame 13 is lowered, the insertion mandrel 26 of the automatic basket attachment/detachment device 23 according to the present invention, which is attached to the free end of the frame, is also lowered, and the attachment/detachment claw, which had been in a horizontal position, is moved down. 28, as shown in FIGS. 5 and 11, is restrained or pressed by the stopper ring 46 of the storage basket 22, but in this case,
By energizing the solenoid 29 and pulling up the actuating rod 31 in advance, the detachable claws 28 are raised inward through the link plate 32 to the position indicated by the two-dot chain line in FIG. 46, and then stops the lowering of the vertically rotating frame 13 and de-energizes the solenoid 29, so that the actuating rod 31 is lowered. As shown in FIG. 12, it becomes horizontal (however, the lowering limit of the insertion mandrel 26 is
(within a range in which the swing does not hit the stopper ring 46), and in this state, by operating the fluid pressure cylinder 36 in the opposite direction, the lifting/lowering rotating frame 13
As a result, the insertion mandrel 26 rises, and each of the detachable claws comes into contact with the back surface of the stopper ring 46 in a horizontal state, as shown in FIG. 13, and lifts the storage basket 22 until it reaches a certain height When the height is reached, the lifting of the vertically rotating frame 13 is stopped.

Next, the basket 22 containing the object to be processed or the object to be impregnated is transferred from the loading zone 1 to the impregnation tank 2.
(withstand pressure 10Kg/cm ² ), use the deceleration motor 3.
9 to rotate the driving gear 40 and the driven gear 41, the monopole 19 integrated with the driven gear rotates, and therefore, the vertical rotation frame 13 rotates.
After rotating it to just above the impregnating tank 2, the deceleration motor is stopped and the fluid pressure cylinder 36 is activated to lower the elevating rotating frame, and as shown in FIG. Then, the insertion mandrel 26 is stopped at the position shown in FIG.
By energizing the solenoid and pulling up the actuating rod 31, the attachment/detachment claw 28 is brought into an upright state.If the insertion mandrel 26 is raised in this state, it will pass the stopper ring 46, and if the solenoid 29 is de-energized, the above-mentioned The attachment/detachment claw is in a horizontal state as shown in FIGS. 16 and 17, and is on standby in preparation for the next processing step or loading/unloading operation.

Furthermore, the degree of vacuum in the impregnation tank 2 is set to 5 mmHg or less using a mercury manometer using a vacuum pump (not shown), and the impregnating tank 2 is preliminarily made of acrylic as a main component, containing a small amount of a curing agent (peroxide), and with the addition of a surfactant. Pour the required amount of impregnating agent into the impregnating tank, and use a compressor (not shown) to collect 5 to 7 kg/kg of impregnating agent.
cm ² for 10 to 15 minutes, the pressure inside the impregnating tank is released by operating a valve, and the basket is lifted using the monopole swing lift 8 as described above and placed in the liquid drainer 3. After draining for about 5 minutes, the recovered impregnating agent is fed back to the impregnating tank.

Next, the basket 22 containing the drained cylinder head is placed on the monopole swing lift 8.
After washing in the tank for 10 to 20 minutes by, for example, blowing air from the nozzle pipe and moving the basket up and down, it is transferred to the first washing tank 4.
Water washing is performed in the next washing tank 5, and the waste water containing a small amount of impregnating agent is fed back to the first washing tank. Subsequently, the cylinder head in the basket 22, which has been washed with water for the second time, is constantly cleaned in advance.
After immersing it in a thermosetting tank 6 kept at 90 to 98°C for 15 minutes and taking it out, draining it with a drainer 7,
The cylinder head is dried with hot air at 70 to 80°C for about 20 to 30 minutes and left to cool naturally to complete the impregnation process.Then, the cylinder head is transported in the unloading zone 1 by a monopole swing lift 10 moving in the direction of the arrow. It is transferred to the loading zone 12 on the production conveyor line of the conveyor 9 and transferred to the next process.

[Brief explanation of drawings]

Fig. 1 is a layout diagram of a fully automatic continuous impregnation device for porous objects, Figs. 2 and 3 are front views of a monopole swing lift equipped with an automatic basket attaching/detaching device according to the present invention, and Fig. 4 is a diagram of the fully automatic continuous impregnation device for porous objects. A plan view of both lifts, FIG. 5 is a vertical cross-sectional view showing the main parts of the device of the present invention, FIGS. 6 and 7 are cross-sectional views taken along the - line and - line in FIG. 5, and FIG. FIG. 9 is a plan view of the basket for storing the processed material, FIG. 9 is a sectional view taken along the line - in FIG. Note that the correspondence relationship between the main parts shown and the symbols is as follows. 1... Loading or unloading zone, 2... Impregnation tank, 3... Liquid drainer, 4... Primary cleaning tank, 5...
Secondary washing tank, 6...Thermosetting tank, 7...Drainer,
8...Monopole rotating lift, 13...Elevating/lowering rotating frame, 14...Frame elevating mechanism, 15...
Frame rotation mechanism, 22...Storage basket, 2
3... Basket automatic attachment/detachment device according to the present invention, 2
6... Insertion mandrel, 28... Detachable claw, 29...
... Solenoid, 30 ... Guide, 31 ... Operating rod, 32 ... Link plate.

Claims (1)

[Scope of utility model registration request] Monopole swing lift 8, 10 monopole 1
9, frame lifting mechanism 14 and frame rotating mechanism 1
A rib support ring having a plurality of ribs 27 formed at equal intervals on its inner wall below an insertion mandrel 26 hanging from the free end of the elevating and rotating frame 13 mounted so as to be able to rise and fall and rotate by means of a A guide shoe 24 integrally formed with the basket 25 is fixed to these ribs, and a detachable claw 28 of the basket 22, which rotates in a vertical plane, is pivotally attached to these ribs by a pin 33, and the guide shoe 24 is attached to the guide 30 provided in the mandrel. The rib 34 formed below the movably mounted actuating rod 31 and the detachable claw are drivingly connected by the link plate 32, and when the detachable claw stands up around the lower part of the insertion mandrel. An automatic basket attachment/detachment device for fully automatic continuous impregnation equipment for porous objects, characterized in that relief grooves 35 are carved.