JP5533388B2 - Cast hole sealing equipment - Google Patents

Description

  The present invention relates to a cast hole sealing treatment method and a cast hole sealing treatment apparatus.

  In castings, air may be caught in the molten metal during casting, resulting in a cast hole on the surface or inside. When there is a cast hole in a product requiring sealability (for example, a cylinder block or cylinder head made of aluminum alloy die casting), a sealing treatment is generally performed in which the cast hole is impregnated with a synthetic resin-based impregnating solution and cured. It is. For example, a work having a casting hole is put in an impregnation treatment tank, the inside of the tank is decompressed to about 5 mmHg, and in this state, an impregnation liquid composed of a main agent and a curing agent is poured into the tank, thereby casting the impregnation liquid. The nest is impregnated. And the technique of removing an excess impregnating liquid by taking out a workpiece | work from a tank and washing | cleaning, and also hardening | curing an impregnating liquid by being immersed in warm water is employ | adopted.

  There are various proposals regarding the above-mentioned hole sealing treatment. For example, Patent Document 1 describes water washing of a work impregnated with an impregnating liquid, in which the work is rotated around a horizontal axis with its lower half immersed in the washing liquid. In Patent Document 2, after rotating the frame body containing the work together with the work, the cleaning water is sprayed onto the work, and then the steam is sprayed onto the work instead of the cleaning water to cure the impregnating liquid and further drain the water. Is described. In Patent Document 3, as a pretreatment for impregnating the work with the impregnating liquid, the work is washed, heated and dried, and then the cleaning liquid remaining on the cast hole of the work is removed by evacuation. It describes that impregnation, draining of the impregnating liquid, preliminary water washing, main water washing, and curing of the impregnating liquid with warm water are sequentially performed.

Japanese Patent Laid-Open No. 4-197478 JP-A-60-75502 JP 2008-296257 A

  As is apparent from the above description of the background art, the forging sealing process requires impregnation liquid impregnation, washing with water, and hardening of the impregnation liquid with warm water, and further after the impregnation liquid is drained and washed with water. It is necessary to drain the water and warm water after the impregnating solution is cured. For this reason, normally, processing tanks for performing each of these processes are arranged, suspended with a hoist in a state where the work is accommodated in the basket, and each processing tank is transferred in order. However, many treatment tanks are required, and thus a large space is also required.

  In each treatment tank, the necessary processing is performed with the workpiece stored in the basket. However, when it is necessary to rotate the workpiece together with the basket for draining, etc., it is necessary to remove the basket from the hoist hanging tool. is there. Further, when the workpiece is rotated around the horizontal axis together with the basket, it is necessary to lock and hold the basket on the rotating frame of the processing tank in order to prevent the workpiece from popping out. Furthermore, a lid fastening operation is also required in a treatment tank with a lid. Thus, many troublesome operations are required for the cast hole sealing treatment, and the tact time tends to be long due to these troublesome operations.

  In addition, for the hot water draining, for example, a method of air blowing from many directions with respect to the work is adopted, but at that time, since hot water and uncured impregnating liquid are scattered, there is a problem of deterioration of the working environment, It is necessary to secure a separate space for air blowing.

  Then, this invention makes it a subject to improve the working efficiency of a forge sealing process, and to aim at space saving.

  In order to solve the above problems, the present invention provides at least one of a water washing treatment and a dipping treatment in hot water (impregnation liquid curing treatment), a rotary draining treatment after water washing, and hot water in one treatment tank. Rotating hot water draining treatment after soaking in was performed.

That is, the mold hole sealing apparatus disclosed herein, which seals the cast hole of the cast workpiece,
An impregnation treatment tank for impregnating an impregnating liquid for sealing into a casting cavity of a work housed in a basket;
A rotation driving means for rotating the impregnated workpiece together with the basket in a state of being accommodated in the basket, and a liquid draining tank for removing excess impregnating liquid from the workpiece by the rotation;
A preliminary water rinsing tank for performing preliminary water washing of the workpiece after the liquid draining treatment while being accommodated in the basket;
At least one of the main water washing treatment of the work after the preliminary water washing and the impregnation liquid hardening treatment by immersing the work in warm water, the water draining treatment of the work after the main water washing treatment, and the impregnation liquid hardening treatment. A multi-function processing device that performs hot water draining processing of the workpiece,
A transporting device that transfers between the impregnation treatment tank, the liquid draining tank, the preliminary water washing tank, and the multi-function processing apparatus in a state where the workpiece is accommodated in a basket;
The multi-function processing device is
One treatment tank for accommodating the work in a state of being accommodated in the basket;
A rotating frame rotatably provided in the processing tank;
A lock mechanism for holding a basket containing the workpiece in the rotating frame;
A water supply facility for supplying cleaning water for the main water washing treatment or hot water for the impregnating solution hardening treatment to the treatment tank, and a drainage facility for discharging the washing water or hot water from the treatment tank;
A rotation driving means for rotating the rotating frame for the water draining process and the hot water draining process of the workpiece ,
The locking mechanism of the multifunction processor is
One is provided on the rotary frame so as to advance and retreat in a direction parallel to the rotation axis of the rotary frame, and the other is provided on the rotary frame so as to advance and retreat in a direction perpendicular to the rotation axis. A pair of first urged forward so as to be in a locked state in which the basket is held in the rotating frame, in an unlocked state in which the holding is released and in a locked state. A locking member;
One is provided on the rotary frame so as to face the one first lock member and advances and retreats in a direction parallel to the rotation axis of the rotary frame, and the other faces the other first lock member and The rotating frame is provided in the rotating frame so as to advance and retract in a direction perpendicular to the rotation axis of the rotating frame, and when it moves forward toward the basket, the rotating frame is locked to hold the basket, and when it moves backward A pair of second lock members that are unlocked and released forward so as to be locked;
The first lock member is provided on the back side of the first lock member in parallel with the rotation axis of the rotary frame, and the pair of first lock members are retracted against the forward bias to enter an unlocked state. A first cylinder device for reciprocating one drive rod;
The first lock member is provided on the back side of the first lock member in parallel with the rotation axis of the rotary frame, and the pair of second lock members are retracted against the forward bias to enter an unlocked state. A second cylinder device for reciprocating two drive rods;
A first transmission mechanism for converting the forward movement of the first drive rod into the backward movement of the pair of first lock members;
A second transmission mechanism that converts the forward movement of the second drive rod into the backward movement of the pair of second lock members;
The first transmission mechanism is
A first rod extending in parallel with the rotation axis of the rotating frame and moving back and forth in the longitudinal direction;
A first rack and pinion mechanism that converts the forward and backward movement of the first rod into the forward and backward movement of the other first lock member;
It is connected to the one first lock member, and when the first drive rod moves forward, it is pushed by the first drive rod and rotates, and the one first lock member is unlocked by the rotation. A first link that retracts to a locked state;
The first rod is connected to a rear end of the first rod, and is rotated by being pushed by the first drive rod by the advancement of the first drive rod, and the first rod is retracted by the rotation. A second link that retracts the other first lock member via the rack and pinion mechanism so as to be unlocked;
The second transmission mechanism is
A second rod extending parallel to the rotation axis of the rotating frame and moving back and forth in the longitudinal direction;
A second rack and pinion mechanism for converting the advance / retreat of the second rod into the advance / retreat of the other second lock member;
It is connected to the rear end of the second rod, and when the second drive rod moves forward, it is pushed by the second drive rod and turns, and the turn causes the second rod to retreat. A lever for retracting the other second locking member through the two-rack and pinion mechanism so as to be unlocked;
A link connected to the front end of the second rod, and pivoted by the retreat of the second rod and retreating the one second lock member to an unlocked state by the rotation. It is characterized by.

  According to the cast hole sealing apparatus, in the treatment tank of the multifunctional processing apparatus, at least one of the main water washing process and the impregnating liquid curing process by immersion in warm water, and the draining process after the main water washing process Since the hot water draining process after the impregnating liquid curing process is performed, the number of processing tanks necessary for the cast hole sealing process can be reduced, which is advantageous in reducing the equipment cost and space saving. In addition, for example, a plurality of one treatment tank may be used, such as performing a main water washing process and a draining process in one treatment tank, or performing an impregnating solution curing process and a hot water draining by immersion in warm water in one treatment tank. Therefore, it is possible to reduce troublesome work required for casting hole sealing processing, such as loading and unloading of workpieces in the processing tank and transfer of workpieces by the transfer device, and work efficiency or processing efficiency is increased.

  And since it drains in a processing tank in the state accommodated in the basket and drains water and warm water, scattering to the circumference | surroundings of washing water, warm water, etc. is avoided, and the deterioration of work environment is avoided. Moreover, the treatment tank drained for draining can be used for warm draining as it is, and the processing efficiency is increased.

  In addition, by adopting the above-mentioned lock mechanism, the basket can be held and released from the rotating frame automatically by a machine without manual operation, so that the efficiency of the hole sealing process is increased.

In a preferred embodiment, further comprising an impregnating liquid curing tank for immersing the work in the basket and immersing it in warm water to cure the impregnating liquid,
The multi-functional treatment apparatus performs the main water washing process, the water draining process after the main water washing process, and the hot water draining process after the impregnating solution curing process.

  When the impregnation liquid curing treatment is performed in the treatment tank of the multi-function treatment apparatus, it is necessary to inject warm water into the treatment tank after the draining process. However, if the impregnation liquid curing tank is provided separately as described above, It is not necessary to take an injection time, and the processing efficiency is increased.

In a preferred embodiment, the rotary frame of the multi-function processing device rotates so that the upper and lower sides of the workpiece are turned upside down. It is characterized by repeatedly appearing and appearing alternately. Thus, Ru can increase efficiency of removing the impregnation liquid adhering to the workpiece.

Also, disclosed herein, blowhole sealing treatment method Fuzuru the chair cast workpiece,
An impregnation treatment tank, a liquid draining tank, a preliminary washing tank, a multi-function treatment tank, and an impregnation liquid curing tank;
In the impregnation treatment tank, impregnating the work with an impregnating liquid for casting hole sealing in a state where the work is housed in a basket;
In the liquid draining tank, a liquid draining step of cutting excess impregnating liquid from the work by rotating together with the basket while the work after the impregnation treatment is housed in the basket;
In the preliminary washing tank, a step of performing preliminary washing of the workpiece with washing water in a state where the workpiece after the liquid draining treatment is accommodated in the basket;
In the multifunctional processing tank, a step of performing main water washing of the workpiece with washing water in a state where the workpiece after the preliminary washing is accommodated in the basket;
In the multi-function treatment tank, by rotating together with the basket in a state where the work after the main water washing treatment is accommodated in the basket, the step of draining the washing water from the work,
In the impregnating liquid curing tank, a step of curing the impregnating liquid impregnated in the work by immersing the work in which the cleaning liquid has been cut in warm water in a state of being accommodated in the basket;
The multi-functional treatment tank includes a step of turning the warm water from the work by rotating the work after the impregnating liquid curing process in a state of being accommodated in the basket.

  Therefore, according to the above-mentioned mold hole sealing treatment method, since the main water washing process, the draining process after the main washing process, and the hot water draining process after the impregnating solution curing process are performed in the multi-function treatment tank, It is possible to reduce the number of treatment tanks necessary for the hole treatment, which is advantageous for reducing the equipment cost and space. Moreover, since the main washing process and the draining process are performed in one multifunctional processing tank, the complicated work required for the forging hole sealing process, such as loading and unloading of the work in the processing tank and transfer of the work by the transfer device, should be reduced. This increases work efficiency and processing efficiency.

  And since it drains in a processing tank in the state accommodated in the basket and drains water and warm water, scattering to the circumference | surroundings of washing water, warm water, etc. is avoided, and the deterioration of work environment is avoided. Moreover, the treatment tank drained for draining can be used for warm draining as it is, and the processing efficiency is increased.

According to the present invention, at least one of the main water washing process and the impregnating liquid curing process by immersion in warm water, the water draining process after the main water washing process, and the hot water draining process after the impregnating liquid curing process are performed. A functional processing device is provided , and the multi-function processing device is provided with a lock mechanism that holds a basket that accommodates a workpiece in a rotating frame, and the lock mechanism advances and retreats in a direction orthogonal to each other and is urged forward. A pair of first lock members, a pair of second lock members that face the first lock members, are advanced and retracted in a direction orthogonal to each other, and are urged forward so as to be locked, and the first and second lock members. The first and second drive rods driven by the cylinder device for setting the unlocked state, and the forward movement of the first and second drive rods are converted into the backward movements of the first and second lock members. First And a second transmission mechanism, since to retract the first and second locking members by driving the first and second driving rod by the cylinder device to release the lock, equipment cost savings, advantageously saving space In addition, it is possible to reduce troublesome work required for the mold hole sealing process, such as loading and unloading of the work in the processing tank and transfer of the work by the transfer device, and the work efficiency or the processing efficiency is increased. Moreover, since the work is stored in the basket and rotated in the processing tank to drain water and warm water, splashing of washing water and warm water to the surroundings can be avoided, work environment deterioration can be avoided, and water draining can be performed. The processing tank drained for the purpose can be used for hot water draining as it is, and further, the holding of the basket with respect to the rotating frame and the release thereof can be automatically performed by a machine without manual operation. The efficiency of the sealing process is increased.

It is a whole block diagram of a cast hole sealing processing apparatus. It is a side view which shows a multifunction processing apparatus in a partial cross section. It is a top view which shows a multifunctional processing apparatus in a partial cross section. It is a top view which shows a part of lock mechanism in a partial cross section. It is a top view which shows the operation mechanism by the rack pinion of a holding pin in a partial cross section. It is a longitudinal cross-sectional view which shows the action mechanism. It is a top view which shows another part of a locking mechanism in a partial cross section. It is a side view which shows the air blow equipment of a multifunctional processing apparatus. It is a top view which shows the air blow equipment.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The following description of the preferred embodiments is merely exemplary in nature and is not intended to limit the invention, its application, or its use.

  In the cast hole sealing apparatus shown in FIG. 1, reference numeral 1 denotes a basket that accommodates the workpiece W. The workpiece W is conveyed to each processing tank for the casting hole sealing process by the conveying device 2 in a state of being accommodated in the basket 1, and various processes are performed. This casting hole sealing treatment apparatus includes the above-described transfer device 2, an impregnation treatment tank 3 for impregnating the casting hole of the workpiece W with an impregnation liquid for sealing, and a liquid draining tank 4 for cutting off excess impregnation liquid from the workpiece W. , A preliminary rinsing tank 5 for washing off the excess impregnating liquid adhering to the workpiece W, a multi-function processing device 6 for performing a plurality of treatments, and an impregnating liquid curing tank for curing the impregnating liquid impregnated into the casting cavity of the workpiece W 7.

  The workpiece transfer device 2 includes a guide rail 11 and a hoist 12 that travels on the guide rail 11, and the basket 1 containing the workpiece W is suspended by a hoisting tool 13 of the hoist 12. The workpiece W is transferred at

  In the impregnation treatment tank 3, the work W is accommodated together with the basket 1, and the reduced pressure impregnation in which the resin-based impregnating liquid is injected into the tank and impregnated into the casting cavity of the work W in a state where the pressure in the tank is reduced to about 5 mmHg, Impregnation under normal pressure with the atmosphere open to the atmosphere. For this purpose, the impregnation treatment tank 3 is provided with a sealed lid 15 as a sealing means for sealing the inside of the tank, and a pressure reducing means (vacuum pump) 16 is connected and the impregnation liquid storage tank 17 is opened and closed. The valve 18 is connected. As the impregnating liquid, for example, a mixed liquid of Super Seal P-601E (methacrylic acid ester-based main agent) manufactured by Chuo Inventive Laboratories and Super Seal curing agent E (azo compound) manufactured by the same company can be used.

  The work W after the impregnation treatment is transferred to the liquid draining tank 4 by the transfer device 2 while being accommodated in the basket 1.

  In the liquid draining tank 4, the workpiece W is accommodated together with the basket 1, and liquid draining using centrifugal force by rotation and liquid draining by air blow are performed. For this purpose, an air blow facility (not shown) is provided in the liquid draining tank 4, and a turntable 19 for supporting the work W in a state in which the work W is accommodated in the basket 1 is provided at the bottom of the tank. A drive motor (rotation drive means) 20 is driven to rotate in the forward and reverse directions. The liquid draining tank 4 is provided with a lid (not shown) that prevents the impregnating liquid from scattering when the liquid is drained.

  In the liquid draining by rotation, for example, the workpiece W is rotated forward and backward together with the basket 1 at a rotation speed of 100 to 150 rpm. Before the liquid is drained by rotation, the liquid is drained by air blow, and after the liquid is drained by rotation, the liquid is again drained by air blow. The work W after liquid draining is transferred to the preliminary rinsing tank 5 by the transport device 2 while being accommodated in the basket 1.

  In the preliminary rinsing tank 5, the impregnating liquid is removed from the workpiece W by repeating dipping / pulling up the workpiece W by immersing and lifting the workpiece W in the washing water a plurality of times. For this purpose, the workpiece W is lifted and lowered by the hoist 12 while being accommodated in the basket 1. In addition, an air blow facility (not shown) is provided inside the preliminary washing tank 5. The work W after the preliminary water washing is drained by air blow and is transferred to the multi-function processing device 6 by the transport device 1 while being accommodated in the basket 1.

  The multi-function processing device 6 includes one processing tank 21 that accommodates the workpiece W together with the basket 1. In the present embodiment, in the treatment tank 21, a main water washing process for the workpiece W, a water draining process after the main water washing process, and a hot water draining process after the impregnating liquid curing process by hot water immersion are performed.

  In the main water washing treatment, the workpiece W is rotated around the horizontal axis together with the basket 1 so that the upper and lower portions of the workpiece W are alternately rotated and swung with respect to the washing water. Drop from W. In this case, water washing by forward rotation and water washing by reverse rotation are performed. The rotation speed may be about 3 to 5 rpm, for example. Thereafter, the washing water in the treatment tank 21 is discharged (draining), and draining using centrifugal force due to rotation and draining by air blow are performed. Rotation draining is also performed in each of forward rotation and reverse rotation. The rotational speed is, for example, 100 to 150 rpm. Thereafter, draining by air blow is performed.

  The drained work W is transferred to the impregnating liquid curing tank 7 by the transfer device 1 in a state of being accommodated in the basket 1. In the impregnating liquid curing tank 7, the work W is immersed in warm water of 90 ° C. or more together with the basket 1, and the impregnating liquid impregnated in the casting cavity of the work W is cured. After the impregnating liquid is cured, the workpiece W is transferred to the processing tank 21 of the multi-function processing device 6 by the transport device 1 while being accommodated in the basket 1. And the hot water draining using the centrifugal force by rotation and the hot water draining by air blow are performed. Hot water draining is also performed in each of forward rotation and reverse rotation. The rotational speed is, for example, 100 to 150 rpm. After that, hot water is drained by air blow.

  In this embodiment, in each of the tanks 3 to 5, 7, and 21, when the processing of one workpiece W is completed, the next workpiece W is loaded and processed one after another. In the curing tank 7, in order to sufficiently cure the impregnating liquid, it is necessary to take a long immersion time of the workpiece W in warm water. For this reason, two impregnating solution curing tanks 7 are provided and used alternately.

  That is, every time both the main washing and draining of the work W in the multi-function treatment tank 21 are completed, the work W is alternately sent from the multi-function treatment tank 21 to the two impregnation liquid curing tanks 7. Each time the impregnating liquid curing process for the work W is completed in each of the curing tanks 7, the work W is alternately received from the two impregnating liquid curing tanks 7 into the multi-function processing tank 21, and the hot water draining process is performed.

  Therefore, while the impregnating liquid curing treatment (immersion in warm water) of the work W is performed in one impregnating liquid curing tank 7, the multi-function processing tank 21 performs the main water washing and draining of the new pre-washed work W. Both of these processes and the hot water draining process of the workpiece W that has been subjected to the impregnating liquid curing process in the other impregnating liquid curing tank 7 are performed.

<About the multi-function processing device 6>
In the multi-function processing device 6, various facilities are provided in the processing tank 21 for the main water washing process, the draining process, and the hot water draining process. This will be specifically described below.

  As shown in FIG. 2, the treatment tank 21 includes a lid 22, one end of a water supply pipe 23 that supplies cleaning water into the tank is connected to the upper end, and the cleaning water is discharged to the lower end. One end of the drain pipe 24 to be connected is connected. The other ends of the water supply pipe 23 and the drain pipe 24 are connected to a washing water tank (not shown) installed under the treatment tank 21.

  A rotating frame 25 that accommodates the workpiece W together with the basket 1 is provided inside the processing tank 21. The rotating frame 25 has a rectangular parallelepiped shape, and the frame material is assembled so as to form each side of the rectangular parallelepiped. The rotating frame 25 is rotated to the processing tank 21 by concentric, opposed rotating shafts 26 and 27 arranged horizontally. It is supported freely. A forward / reverse drive motor 28 with a speed reducer is provided outside the tank, and its output shaft and one rotation shaft 26 are connected by a transmission device including a drive pulley 29, a driven pulley 30 and a transmission belt 31. Yes.

  The rotation of the rotary frame 25 is stopped by encoder control so that the opening for putting in and out the basket 1 is on the upper side, but thereafter, the rotation frame 25 is positioned and held by the positioning pin 32 so that the opening is directed vertically upward. That is, the positioning pin 32 has a cone-shaped tip, and is provided so as to advance and retract toward the rotating shaft 26 by the cylinder device 33 outside the tank. On the other hand, a pin receiver 34 having a cone-shaped pin hole for receiving the positioning pin 32 is fixed to the rotating shaft 26. Then, after the rotation of the rotary frame 25 is stopped by the encoder control, the positioning pin 32 is fitted into the pin hole of the pin receiver 34, so that the opening is directed vertically upward.

[About locking mechanism]
The multi-function processing device 6 includes a lock mechanism 50 that holds the basket 1 in which the work W is accommodated in the rotary frame 25. That is, as shown in FIG. 3, at the upper end of the rotating frame 25, as a holding pin (locking member) that holds the basket 1 on the rotating frame 25, a pair of first holding members that advance and retract in two directions orthogonal to each other. Pins 35 and 36 and a pair of second holding pins 37 and 38 that are similarly advanced and retracted in two directions orthogonal to each other are provided. In the present embodiment, one first holding pin 35 and second holding pin 37 are provided in parallel with the rotation shafts 26 and 27, and the other first holding pin 36 and second holding pin 38 are one first holding pin. The pins 35 and the second holding pins 37 are arranged in a horizontal direction orthogonal to the directions. That is, the four holding pins 35 to 38 are disposed on the four sides at the upper end of the rectangular parallelepiped rotary frame 25 and are provided so as to be directed to the center of the rotary frame 25.

  Each of the holding pins 35 to 38 is passed through a pin passage 39 provided at the upper end of the rotating frame 25, and advances forward inward (basket 1 side), so that the pin passage 40 provided at the upper end of the basket 1 It is in a state of being inserted into the pin holes, that is, a state of being passed through the pin holes of both the pin passages 39, 40 so as to connect the both pin passages 39, 40. The basket 1 is held by the rotating frame 25 by the connection of the pin passages 39 and 40 by the holding pins.

  That is, since the first holding pins 35 and 36 and the second holding pins 37 and 38 each connect the basket 1 and the rotary frame 25 in two directions orthogonal to each other, the basket 1 and the rotary frame 25 are in any direction. It will be in the locked state connected without slipping. When the first and second holding pins 35 to 38 move backward and come out of the pin passage 40 of the basket 1, the holding state of the basket 1 with respect to the rotating frame 25 is released.

Thus, the processing tank 21 includes a first cylinder device 41 as a driving means for operating the first holding pins 35 and 36 and a second cylinder device 42 as a driving means for operating the second holding pins 37 and 38. And are supported. Both the cylinder devices 41 and 42 are provided on the back side of the first holding pin 35 in parallel with the rotary shafts 26 and 27, and are respectively provided with first and second drive rods 41a and 42a extending in the cylinder axial direction. Reciprocate. At the upper end of the rotary frame 25, a first transmission mechanism 43 that transmits the forward movement of the first drive rod 41a to the first holding pins 35, 36, and the forward movement of the second drive rod 42a are second holding pins 37, 38. And a second transmission mechanism 44 for transmitting to the second side.

  In the present embodiment, the holding pins 35 to 38 are normally locked by a spring described later, and the cylinder devices 41 and 42 are for retracting the holding pins 35 to 38 to make them unlocked. A drive means for reciprocating the drive rods 41a, 42a is configured, and the transmission mechanisms 43, 44 convert the forward movement of the drive rods 41a, 42a into the backward movement of the holding pins 35-38. This will be specifically described below.

  First, the first transmission mechanism 43 will be described. One first holding pin 35 provided in parallel with the rotary shafts 26 and 27 is urged forward by a spring 45 so as to be locked as shown in FIG.

As shown in FIGS. 5 and 6, the other first holding pin 36 is provided with a rack 46 extending in the pin direction. The rack 46 is supported by two vertical shafts supported by the rotary frame 25. It meshes with one of the pinions 47, 48. The other pinion 48 meshes with a rack 51 provided on a first rod 49 extending in parallel with one first holding pin 35. Accordingly, when the first rod 49 advances in the forward direction of the first drive rod 41a, the movement is transmitted from the rack 51 to the pinion 48 and from the pinion 47 to the rack 46, and the other first holding pin 36 advances. . The first rod 49 penetrates the lower part of the pin passage 39 so as to be movable back and forth. This also applies to the second rod 61 described later.

Thus, when one of the first holding pins 35 is in a locked state in which the first holding pin 35 is advanced by the urging force of the spring 45, one of the first holding pins 35 is also set in the advanced locked state. As shown in FIGS. 3 and 4, the holding pin 35 and the first rod 49 are connected by a direct link (first link) 52 and a dogleg-shaped curved link (second link) 53.

That is, each of the central portion of the straight link 52 and the central bent portion of the curved link 53 is rotatably supported by the vertical pins on the brackets 54 and 55 protruding outward from the rotary frame 25. One end of the straight link 52 is perpendicular to the rear end of one first holding pin 35, the other end of the straight link 52 is perpendicular to one end of the curved link 53, and the other end of the curved link 53 is perpendicular to the rear end of the first rod 49. It is connected with a free connecting pin. Slots are formed in the connecting portions of the links 52 and 53 with respect to the connecting pins so as to allow relative movement of the connecting pins in the link longitudinal direction.

  The first cylinder device 41 is provided such that the first drive rod 41 a moves forward and backward toward a pin 56 that connects the straight link 52 and the curved link 53. An engaging portion 57 that engages with the connecting pin 56 is provided at the tip of the first drive rod 41a.

Therefore, when the first drive rod 41a is advanced by the first cylinder device 41 in the locked state where the first holding pins 35 and 36 are advanced together by the urging force of the spring 45, the engaging portion 57 at the tip thereof is connected to the connecting pin 56. Further, the connecting pin 56 is pushed against the urging force of the spring 45. As a result, the links 52 and 53 rotate as indicated by a chain line in FIG. 4, and accordingly, one of the first holding pins 35 is retracted to be unlocked, and the first rod 49 is also retracted at the same time . become. By the retraction of the first rod 49, the other first holding pin 36 is retracted by the action of the two sets of first rack and pinion mechanisms shown in FIGS. 5 and 6 to be in an unlocked state.

Next, the second transmission mechanism 44 will be described. As shown in FIG. 3, the other second holding pin 38 extending in the direction orthogonal to the direction of one second holding pin 37 provided in parallel with the rotation shafts 26 and 27 Similar to the first holding pin 3, the second rod 61 extending in parallel with the rotary shafts 26 and 27 is advanced and retracted by the two sets of second rack and pinion mechanisms. Since the configuration of the other first holding pin 3 is the same, illustration and description of the two sets of second rack and pinion mechanisms are omitted.

As shown in FIG. 7, the second rod 61 is urged forward by a spring 62 in the forward direction of the second drive rod 42a. When the second rod 61 is advanced by the urging force of the spring 62, the other second holding pin 38 is in a locked state in which it is advanced by the action of the two sets of second rack and pinion mechanisms. When the other second holding pin 38 is in the advanced locked state, the second rod 61 and the one second holding pin 37 are arranged so that the one second holding pin 38 is also in the advanced locked state. Are connected by a link 63. The link 63 is rotatably supported by a vertical pin on a bracket 60 whose intermediate portion protrudes from the rotary frame 25.

Thus, the second cylinder device 42 and the lever 64 are provided in order to move the second rod 61 backward to bring the second holding pins 37 and 38 into the unlocked state. That is, the lever 64 is rotatably supported at the center by the vertical frame on the rotary frame 25, and one end of the lever 64 is connected to the rear end of the second rod 61 by the vertical pin. The second cylinder device 42 is provided such that the second drive rod 42a advances and retreats toward the other end of the lever 64, and the tip of the second drive rod 42a contacts the other end of the lever 64. A roller 65 is supported.

Therefore, when the second drive rod 42a is advanced from the locked state in which the second holding pins 37 and 38 are advanced together by the urging force of the spring 62, as shown in FIG. In contact therewith, the lever 64 is rotated against the urging force of the spring 62. As a result, the second rod 61 moves backward. By the retraction of the second rod 61, the link 63 is rotated and one of the second holding pins 37 is set in the unlocked state, and the other second holding pin 38 is also in the two sets of the second rack and pinion mechanism. The unlocked state is set back by work.

[About air blow equipment]
As shown in FIGS. 8 and 9, an air blow pipe is provided on the rotary frame 25. That is, an upper horizontal pipe 71 is provided at the upper end of the rotating frame 25 so as to be rectangular along the frame, and the lower surface of the rotating frame 25 is similarly rectangular in the planar shape. A lower horizontal pipe 72 assembled along the frame is provided, and corresponding sides of the four sides of the upper and lower horizontal pipes 71, 72 are connected by a plurality of vertical pipes 73. These vertical pipes 73 are provided with a number of air nozzles 74 that eject air toward the inside of the rotary frame 25. The rotary shafts 26 and 27 are hollow shafts whose axial centers are air passages 75, and each of the two vertical pipes 73 and the hollow rotary shafts 26 and 27 disposed at locations where the rotary shafts 26 and 27 face each other. Are connected by a T-shaped pipe joint 76. Elbow type pipe joints 77 are provided at the outer ends of the hollow rotary shafts 26 and 27, and an air compressor (not shown) is connected thereto.

<Use of Multi-Function Processing Device 6>
[Main water washing treatment]
In the main water washing, the washing water is put into the treatment tank 21 from the washing water tank to the height of the rotary shafts 26 and 27 through the water supply pipe 23. The rotary frame 25 is positioned and held by the positioning pins 32 so that the opening portion faces vertically upward.

  The drive rods 41a and 42a are moved forward by the cylinder devices 41 and 42 to bring the holding pins 35 to 38 into an unlocked state. In this state, the workpiece W is lowered by the hoist 12 while being accommodated in the basket 1, and is put into the rotating frame 25 of the processing tank 21. The basket 1 is removed from the hanger 13, and the drive rods 41 a and 42 a are moved backward by the cylinder devices 41 and 42. As a result, the holding pins 35 to 38 are moved forward by the urging force of the springs 45 and 62 and are passed through the pin passage 39 of the rotating frame 25 and the pin passage 40 of the basket 1, that is, the basket 1 is moved to the rotating frame 25. The locked state held in In this state, the lid 22 is closed and the drive motor 28 is activated to rotate the workpiece W together with the basket 1 and the rotating frame 25 at a rotation speed of about 3 to 5 rpm.

  As the work W rotates, the upper part and the lower part of the work W alternately appear and disappear with respect to the cleaning water. Thereby, the impregnating liquid is efficiently removed from the workpiece W. After rotating the workpiece W in one direction for a predetermined time, the workpiece W is rotated in the opposite direction at a similar rotational speed for a predetermined time. Thereby, the impregnating liquid adhering to the workpiece | work W can be removed without a whole.

[Draining process]
After the main water washing is completed, the washing water in the treatment tank 21 is drawn out into the washing water tank through the drain pipe 24. Then, the workpiece W is rotated together with the basket 1 and the rotary frame 25 at a rotation speed of about 100 to 150 rpm. As a result, the washing water adhering to the workpiece W is removed together with the residual impregnation liquid by receiving a centrifugal force. After rotating the workpiece W in one direction for a predetermined time, the workpiece W is rotated in the opposite direction at a similar rotational speed for a predetermined time. Thereby, the washing water and the impregnating liquid adhering to the workpiece W can be removed without any bias.

  Next, the rotation of the rotary frame 25 (work W) is stopped, and the rotary frame 25 is positioned and held by the positioning pins 32 so that the opening of the rotary frame 25 faces vertically upward. Then, pressurized air is supplied from the hollow rotary shafts 26 and 27 to the pipes 71 to 73, and air is ejected from the multiple air nozzles 74 arranged around the work W toward the work W. Thereby, the washing water and the impregnation liquid adhering to the workpiece W can be removed without leaving them.

  Since the draining by the rotation and the draining by the air blow are performed in the treatment tank 21 with the lid 22 closed, the washing water or the like does not scatter around.

  After the draining process, the drive rods 41 a and 42 a are advanced by the cylinder devices 41 and 42 to bring the holding pins 35 to 38 into the unlocked state, the basket 1 is lifted by the hoist 12, and the workpiece W is taken out from the processing tank 21. The workpiece W is transferred to one impregnation liquid curing tank 7 while being accommodated in the basket 1, and the impregnation liquid is cured by warm water.

[Hot water draining treatment]
The workpiece W that has been subjected to the impregnating liquid curing process in the other impregnating liquid curing tank 7 is transferred to the processing tank 21 that has been subjected to the draining process in a state of being accommodated in the basket 1, and the hot water draining process is performed.

  That is, as in the case of the previous main washing and draining, the drive rods 41 a and 42 a are advanced by the cylinder devices 41 and 42 to bring the holding pins 35 to 38 into an unlocked state, and the workpiece W together with the basket 1 in the processing tank 21. The basket 1 is put in the rotary frame 25, the basket 1 is removed from the hanger 13, and the drive rods 41 a and 42 a are retracted by the cylinder devices 41 and 42 to set the basket 1 in the locked state.

  In this state, the lid 22 is closed and the drive motor 28 is activated to rotate the workpiece W together with the basket 1 and the rotating frame 25 at a rotation speed of about 100 to 150 rpm. Thereby, the hot water adhering to the workpiece | work W receives a centrifugal force, and is removed. After rotating the workpiece W in one direction for a predetermined time, the workpiece W is rotated in the opposite direction at a similar rotational speed for a predetermined time. Thereby, the warm water adhering to the workpiece | work W can be removed uniformly.

  Next, the rotation of the rotating frame 25 is stopped, and the positioning pin 32 positions and holds the opening so that the opening portion faces vertically upward. Then, pressurized air is supplied from the hollow rotary shafts 26 and 27 to the pipes 71 to 73, and air is ejected from the multiple air nozzles 74 arranged around the work W toward the work W. Thereby, the hot water adhering to the workpiece | work W can be removed without leaving.

  The hot water draining by the rotation and the hot water draining by the air blow are performed in the treatment tank 21 with the lid 22 closed, so that the hot water or the like does not scatter around.

  After the hot water draining process, the drive rods 41a, 42a are advanced by the cylinder devices 41, 42 to unlock the holding pins 35-38, the basket 1 is lifted by the hoist 12, the workpiece W is taken out from the processing tank 21, and the cast hole Carry out as a sealed product. Wash water is poured into the treatment tank 21 for the main water washing process of the next workpiece W.

<Others>
In the above-described embodiment, the main water washing, draining, and hot water draining processes are performed by the multi-function processing apparatus 6, but in addition to these processes, an impregnating liquid curing process may be performed. That is, after both the main washing and draining processes are completed in the processing tank 21, the impregnating liquid impregnated into the casting cavity of the work W by putting warm water into the processing tank 21 from a separately provided hot water tank is cured, and thereafter The hot water is removed from the treatment tank 1 and the above-mentioned hot water draining process is performed.

  Alternatively, the multi-function processing device 6 may perform draining, impregnating solution curing, and warm water draining, and the main water washing, which is the pretreatment, may be performed separately.

W Work
1 basket
2 Transport device
3 Impregnation tank
4 Liquid tank
5 Preliminary washing tank
6 Multi-function processor
7 Impregnating liquid curing tank 7
19 Turntable
20 Drive motor (rotation drive means)
21 Treatment tank
23 Water supply pipe (water supply equipment)
24 Drainage pipe (drainage equipment)
25 Rotating frame
28 Drive motor (rotation drive means)
35 to 38 Holding pin (locking member)
41a, 42a Drive rod 41, 42 Cylinder device (drive means)
43, 44 Transmission mechanism
49 1st rod
50 Locking mechanism
52 Direct link (1st link)
53 song link (second link)
61 Second rod
63 lever
64 links

Claims (3)

A cast hole sealing apparatus for sealing a cast hole of a cast workpiece,
An impregnation treatment tank for impregnating an impregnating liquid for sealing into a casting cavity of a work housed in a basket;
A rotation driving means for rotating the impregnated workpiece together with the basket in a state of being accommodated in the basket, and a liquid draining tank for removing excess impregnating liquid from the workpiece by the rotation;
A preliminary water rinsing tank for performing preliminary water washing of the workpiece after the liquid draining treatment while being accommodated in the basket;
At least one of the main water washing treatment of the work after the preliminary water washing and the impregnation liquid hardening treatment by immersing the work in warm water, the water draining treatment of the work after the main water washing treatment, and the impregnation liquid hardening treatment. A multi-function processing device that performs hot water draining processing of the workpiece,
A transporting device that transfers between the impregnation treatment tank, the liquid draining tank, the preliminary water washing tank, and the multi-function processing apparatus in a state where the workpiece is accommodated in a basket;
The multi-function processing device is
One treatment tank for accommodating the work in a state of being accommodated in the basket;
A rotating frame rotatably provided in the processing tank;
A lock mechanism for holding a basket containing the workpiece in the rotating frame;
A water supply facility for supplying cleaning water for the main water washing treatment or hot water for the impregnating solution hardening treatment to the treatment tank, and a drainage facility for discharging the washing water or hot water from the treatment tank;
A rotation driving means for rotating the rotating frame for the water draining process and the hot water draining process of the workpiece ,
The locking mechanism of the multifunction processor is
One is provided on the rotary frame so as to advance and retreat in a direction parallel to the rotation axis of the rotary frame, and the other is provided on the rotary frame so as to advance and retreat in a direction perpendicular to the rotation axis. A pair of first urged forward so as to be in a locked state in which the basket is held in the rotating frame, in an unlocked state in which the holding is released and in a locked state. A locking member;
One is provided on the rotary frame so as to face the one first lock member and advances and retreats in a direction parallel to the rotation axis of the rotary frame, and the other faces the other first lock member and The rotating frame is provided in the rotating frame so as to advance and retract in a direction perpendicular to the rotation axis of the rotating frame, and when it moves forward toward the basket, the rotating frame is locked to hold the basket, and when it moves backward A pair of second lock members that are unlocked and released forward so as to be locked;
The first lock member is provided on the back side of the first lock member in parallel with the rotation axis of the rotary frame, and the pair of first lock members are retracted against the forward bias to enter an unlocked state. A first cylinder device for reciprocating one drive rod;
The first lock member is provided on the back side of the first lock member in parallel with the rotation axis of the rotary frame, and the pair of second lock members are retracted against the forward bias to enter an unlocked state. A second cylinder device for reciprocating two drive rods;
A first transmission mechanism for converting the forward movement of the first drive rod into the backward movement of the pair of first lock members;
A second transmission mechanism that converts the forward movement of the second drive rod into the backward movement of the pair of second lock members;
The first transmission mechanism is
A first rod extending in parallel with the rotation axis of the rotating frame and moving back and forth in the longitudinal direction;
A first rack and pinion mechanism that converts the forward and backward movement of the first rod into the forward and backward movement of the other first lock member;
It is connected to the one first lock member, and when the first drive rod moves forward, it is pushed by the first drive rod and rotates, and the one first lock member is unlocked by the rotation. A first link that retracts to a locked state;
The first rod is connected to a rear end of the first rod, and is rotated by being pushed by the first drive rod by the advancement of the first drive rod, and the first rod is retracted by the rotation. A second link that retracts the other first lock member via the rack and pinion mechanism so as to be unlocked;
The second transmission mechanism is
A second rod extending parallel to the rotation axis of the rotating frame and moving back and forth in the longitudinal direction;
A second rack and pinion mechanism for converting the advance / retreat of the second rod into the advance / retreat of the other second lock member;
It is connected to the rear end of the second rod, and when the second drive rod moves forward, it is pushed by the second drive rod and turns, and the turn causes the second rod to retreat. A lever for retracting the other second locking member through the two-rack and pinion mechanism so as to be unlocked;
A link connected to the front end of the second rod, and pivoted by the retreat of the second rod and retreating the one second lock member to an unlocked state by the rotation. A cast hole sealing apparatus characterized by comprising: In claim 1,
Furthermore, an impregnating solution curing tank for curing the impregnating solution by immersing the workpiece in warm water in the state of being accommodated in the basket,
The multi-function treatment device performs the main water washing treatment, the water draining treatment after the main water washing treatment, and the hot water draining treatment after the impregnating solution curing treatment. In claim 2,
The cast hole sealing apparatus according to claim 1, wherein the rotary frame of the multi-function processing apparatus is rotated so that the top and bottom of the work are reversed.

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