Cleaning and spraying device for inner wall of centrifugal casting mold cylinder

Abstract

The utility model discloses a cleaning and spraying device for the inner wall of a centrifugal casting mold cylinder. The cleaning and spraying device comprises a cleaning mechanism and a spraying mechanism which respectively run on a platform track. The two mechanisms respectively comprise a moving platform, and a moving trolley is arranged on a trolley track of the moving platform. And a power mechanism for driving the moving platform to move is also arranged on the moving platform. A winch and a fixed pulley are installed on the movable platform, and the two ends of a winch rope wound around the winch drum and the fixed pulley are connected with the front end and the rear end of the movable trolley respectively. A rear lifting frame is fixedly installed on the moving trolley, and a front lifting frame is fixedly installed at the front end of the moving platform. The cleaning mechanism and the spraying device further comprise push rods, the rear ends of the push rods are fixed to the rear lifting frame, and cleaning brushes or sprayers are installed at the front ends of the push rods. The push rod is supported by the front lifting frame and penetrates through the front lifting frame in a front-back movable mode. The device adopts mechanical design to replace manual operation, so that the labor intensity of operators is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a cleaning and spraying device, in particular to a cleaning and spraying device for the inner wall of a centrifugal casting mold cylinder. Background Technique

[0002] During centrifugal casting production, in order to prevent the centrifugal casting pipe from adhering to the inner wall of the mold cylinder after pouring, before each pouring, it is necessary to clean the coating adhered to the inner wall of the mold cylinder. After cleaning, a high-temperature coating is sprayed on the inner wall of the mold cylinder, and then the next centrifugal pouring is carried out.

[0003] The traditional method is to use manual tools for cleaning and spraying. The labor intensity is high, the working environment is poor, the working efficiency is low, and the quality of cleaning and spraying is uneven.

[0004] The Chinese utility model with the publication number CN219881257U discloses a "mold cylinder cleaning and spraying vehicle". The first moving frame can move along the first direction to move the cleaning and spraying frame to one side of the horizontal centrifugal casting machine. The second moving frame can move along the second direction to make one side of the cleaning and spraying frame close to the mold cylinder. The lifting assembly can drive the cleaning and spraying frame to rise to a suitable height so that the cleaning rod and the spraying rod can extend into the mold cylinder. The third driving assembly drives the cleaning rod and the fourth driving assembly drives the spraying rod to extend into the mold cylinder in sequence to complete the cleaning and spraying operations of the mold cylinder. The mechanized operation of cleaning and spraying the mold cylinder is realized.

[0005] The Chinese invention patent application with the publication number CN113634729A discloses an "auxiliary device for centrifugal casting", which includes a movable base, a cleaning mechanism, a spraying mechanism and a pipe pulling mechanism. The cleaning mechanism, the spraying mechanism and the pipe pulling mechanism are all arranged on the movable base. The movable base can drive the pipe pulling mechanism, the cleaning mechanism and the spraying mechanism towards the centrifugal casting mold cylinder in sequence. The cleaning mechanism is used to clean the inner cavity of the centrifugal casting mold cylinder, and the spraying mechanism is used to spray the inner cavity of the centrifugal casting mold cylinder. This solution can solve the problems of low automation, single function and complex operation existing in the current auxiliary devices for centrifugal casting.

[0006] In the above two patents (applications), the cleaning mechanism and the spraying mechanism are installed on the same cleaning and spraying frame (or called a movable base). Its main disadvantages are: First, when such a device works, it can only separately implement the cleaning work or the spraying work on the inner wall of the mold cylinder, and it is difficult to clean and spray two mold cylinders respectively at the same time, and the working efficiency is low. Second, the transmission mechanism has a complex structure, unstable performance, and high manufacturing and maintenance costs. Utility Model Content

[0007] The technical problem to be solved by the present utility model is to provide a cleaning and spraying device for the inner wall of a centrifugal casting mold cylinder, which adopts mechanized operation to improve the quality and efficiency of cleaning and spraying work.

[0008] To solve the above technical problems, the present utility model adopts the following technical solutions:

[0009] A cleaning and spraying device for the inner wall of a centrifugal casting mold cylinder includes a platform track running left and right. The device further includes a cleaning mechanism and a spraying mechanism respectively running on the platform track; the cleaning mechanism and the spraying mechanism respectively include a moving platform, and platform rollers matched with the platform track are installed on the bottom side of the moving platform; a power mechanism is further arranged on the moving platform, and the power mechanism includes a motor and a speed reducer, and the speed reducer is connected to the platform rollers through a transmission shaft; a trolley track running front and back is arranged on the moving platform, and a moving trolley capable of moving back and forth along the trolley track is arranged on the trolley track; a hoist and a fixed pulley are installed on the moving platform, and the hoist includes a motor, a speed reducer and a hoisting drum connected in sequence; one end of a hoisting rope bypassing the hoisting drum and the fixed pulley is connected to the rear end of the moving trolley, and the other end is connected to the front end of the moving trolley; a rear lifting frame is fixedly installed on the moving trolley; a front lifting frame is fixedly installed at the front end of the moving platform; the cleaning mechanism further includes a cleaning push rod with the rear end fixed to the rear lifting frame and a cleaning brush installed at the front end, and the cleaning push rod is supported by the front lifting frame and can move back and forth through the front lifting frame; the spraying mechanism further includes a spraying push rod with the rear end fixed to the rear lifting frame and a nozzle installed at the front end, and the spraying push rod is supported by the front lifting frame and can move back and forth through the front lifting frame.

[0010] Preferably, the rear lifting frame and the front lifting frame are respectively provided with height adjustment slots running up and down; the rear ends of the spraying push rod and the cleaning push rod are located in the height adjustment slots of the corresponding rear lifting frames and are fastened to the corresponding rear lifting frames by fixing plates and fastening nuts.

[0011] Preferably, the front lifting frame is further provided with a roller support slot running up and down, and a roller for supporting the corresponding push rod is installed in the roller support slot.

[0012] Preferably, the spraying mechanism further includes a paint tank, and the paint tank is connected to the nozzle through a paint pump and a paint conveying pipeline.

[0013] Further preferably, the spraying push rod has a cavity for a paint conveying pipeline, the cavity is connected to the paint pump at the rear end and connected to the nozzle at the front end.

[0014] The positive effects of the present utility model are as follows:

[0015] This device adopts a mechanized and automated design, replacing manual operation, reducing the labor intensity of operators, and improving work efficiency. It has the characteristics of being simple and practical, having good cleaning effect and uniform spraying. Specifically as follows:

[0016] First, the cleaning mechanism and spraying mechanism of the present utility model are separately arranged and installed on the same platform track running left and right, and each has its own advancing and retreating power mechanism and lifting mechanism. With this device, the cleaning and spraying work can be carried out on two mold cylinders simultaneously, and the work efficiency is significantly improved.

[0017] Second, in the optimized technical solution of the present utility model, the advancing and retreating power mechanism adopts a winch drive method, with a simpler and more compact structure and more stable performance.

[0018] Third, in the optimized technical solution of the present utility model, the front lifting frame of the lifting mechanism supports the push rod through a roller. During the forward and backward movement of the push rod, it forms a rolling contact with the roller, with less friction. This not only reduces the wear of the push rod but also reduces the driving power. Description of the Drawings

[0019] Figure 1 is the top view structural schematic diagram of the embodiment of the present utility model.

[0020] Figure 2 is the side view structural schematic diagram of the embodiment of the present utility model. Figure 2 Only the side view structure of the cleaning mechanism is shown. Since the spraying mechanism only adds a paint pump and a paint tank compared to the cleaning mechanism, and the structures of other parts are the same, the side view structure of the spraying mechanism is omitted.

[0021] Description of the reference numerals: 1-1, cleaning mobile platform; 1-2, spraying mobile platform; 2, transmission shaft; 3-1, cleaning power mechanism; 3-2, spraying power mechanism; 4, platform track; 5, platform roller; 6, fixed pulley; 7, roller shaft; 8-1, front cleaning lifting frame; 8-2, front spraying lifting frame; 9, roller groove; 10-1, cleaning push rod; 10-2, spraying push rod; 11, fixing plate; 12-1, rear cleaning lifting frame; 12-2, rear spraying lifting frame; 13, fastening nut; 14-1, cleaning winch; 14-2, spraying winch; 15-1, cleaning winch rope; 15-2, spraying winch rope; 16-1, cleaning mobile trolley; 16-2, spraying mobile trolley; 17-1, cleaning trolley track; 17-2, spraying trolley track; 18, cleaning brush; 19, nozzle; 20, paint pump; 21, paint tank; 22, precast foundation. Detailed Embodiment

[0022] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0023] Combined with Figure 1And Figure 2 , an embodiment of the utility model includes a platform track 4 fixedly installed on a prefabricated foundation 22 and running left and right (corresponding to the front and back directions in the attached drawings), and further includes a cleaning mechanism and a spraying mechanism respectively running on the platform track 4.

[0024] The cleaning mechanism includes a cleaning mobile platform 1-1, and platform rollers 5 cooperating with the platform track 4 are installed on the bottom side of the cleaning mobile platform 1-1. A cleaning trolley track 17-1 running front and back (corresponding to the left and right directions in the attached drawings) is arranged on the cleaning mobile platform 1-1, and a cleaning mobile trolley 16-1 capable of moving back and forth along the cleaning trolley track 17-1 is arranged on the cleaning trolley track 17-1.

[0025] A cleaning power mechanism 3-1 is further arranged on the cleaning mobile platform 1-1. The cleaning power mechanism 3-1 includes a motor and a speed reducer. The speed reducer drives the platform rollers 5 to roll and walk on the platform track 4 through a transmission shaft 2, so as to realize the left and right movement of the cleaning mobile platform 1-1.

[0026] A cleaning winch 14-1 is installed at the rear end of the cleaning mobile platform 1-1. The cleaning winch 14-1 includes a motor, a speed reducer and a winch drum connected in sequence, and a fixed pulley 6 is installed at the front end. One end of a cleaning winch rope 15-1 bypassing the winch drum and the fixed pulley 6 is connected to the rear end of the cleaning mobile trolley 16-1, and the other end is connected to the front end of the cleaning mobile trolley 16-1. When the cleaning winch 14-1 works, the cleaning mobile trolley 16-1 is pulled forward or backward by the winch rope 15-1 through the forward and reverse rotation of the motor.

[0027] A cleaning rear lifting frame 12-1 is fixedly installed on the cleaning mobile trolley 16-1. A cleaning front lifting frame 8-1 is fixedly installed at the front end of the cleaning mobile platform 1-1. The cleaning mechanism further includes a cleaning push rod 10-1 with the rear end fixed to the cleaning rear lifting frame 12-1 and a cleaning brush 18 installed at the front end. The cleaning push rod 10-1 is supported by the cleaning front lifting frame 8-1 and can move back and forth through the cleaning front lifting frame 8-1.

[0028] Specifically, the cleaning rear lifting frame 12-1 and the cleaning front lifting frame 8-1 are respectively provided with height adjustment grooves running up and down. The rear end of the cleaning push rod 10-1 is located in the height adjustment groove of the cleaning rear lifting frame 12-1 and is fastened to the cleaning rear lifting frame 12-1 by a fixing plate 11 and a fastening nut 13. More specifically, the rear end of the cleaning push rod 10-1 is fixedly connected to the fixing plate 11. The fixing plate 11 is attached to the front side of the cleaning rear lifting frame 12-1, and the fastening nut 13 screwed on the cleaning push rod 10-1 fastens the rear end of the cleaning push rod 10-1 to the cleaning rear lifting frame 12-1 from the rear side of the cleaning rear lifting frame 12-1.

[0029] Before cleaning, the lifting frame 8-1 is also provided with a roller trough 9 extending vertically. A roller for supporting the cleaning push rod 10-1 is installed in the roller trough 9. During use, the axis of the cleaning push rod 10-1 is adjusted to be basically coincident with the axis of the centrifugal casting cylinder. The rear end of the cleaning push rod 10-1 is fastened to the lifting frame 12-1 after cleaning, and the roller shaft 7 of the roller is fastened to the lifting frame 8-1 before cleaning. Driven by the cleaning mobile cart 16-1, the cleaning push rod 10-1 located in the height adjustment groove of the lifting frame 8-1 before cleaning and supported by the roller rolls forward, and the cleaning brush 18 enters the cylinder to cooperate with the rotation of the cylinder to clean the inner wall.

[0030] The spraying mechanism includes a spraying mobile platform 1-2. Platform rollers 5 matching with the platform track 4 are installed on the bottom side of the spraying mobile platform 1-2. A spraying cart track 17-2 extending in the front-rear direction is arranged on the spraying mobile platform 1-2, and a spraying mobile cart 16-2 capable of moving back and forth along the spraying cart track 17-2 is arranged on the spraying cart track 17-2.

[0031] A spraying power mechanism 3-2 is also arranged on the spraying mobile platform 1-2. The spraying power mechanism 3-2 includes a motor and a speed reducer. The speed reducer drives the platform rollers 5 to roll and move on the platform track 4 through a transmission shaft 2, realizing the left-right movement of the spraying mobile platform 1-2.

[0032] A spraying winch 14-2 is installed at the rear end of the spraying mobile platform 1-2. The spraying winch 14-2 includes a motor, a speed reducer and a winch drum connected in sequence, and a fixed pulley 6 is installed at the front end. One end of a spraying winch rope 15-2 bypassing the winch drum and the fixed pulley 6 is connected to the rear end of the spraying mobile cart 16-2, and the other end is connected to the front end of the spraying mobile cart 16-2. When the spraying winch 14-2 works, the spraying mobile cart 16-2 is pulled forward or backward by the winch rope 15-2 through the forward and reverse rotation of the motor.

[0033] A spraying rear lifting frame 12-2 is fixedly installed on the spraying mobile cart 16-2. A spraying front lifting frame 8-2 is fixedly installed at the front end of the spraying mobile platform 1-2. The spraying mechanism further includes a spraying push rod 10-2 with the rear end fixed to the spraying rear lifting frame 12-2 and a nozzle 19 installed at the front end. The spraying push rod 10-2 is supported by the spraying front lifting frame 8-2 and can move back and forth through the spraying front lifting frame 8-2.

[0034] Specifically, the post-spray lifting frame 12-2 and the pre-spray lifting frame 8-2 are respectively provided with height adjustment slots running in the up-and-down direction. The rear end of the spray push rod 10-2 is located in the height adjustment slot of the post-spray lifting frame 12-2 and is fastened to the post-spray lifting frame 12-2 by the fixing plate 11 and the fastening nut 13. More specifically, the rear end of the spray push rod 10-2 is fixedly connected to the fixing plate 11. The fixing plate 11 is attached to the front side of the post-spray lifting frame 12-2, and the fastening nut 13 screwed onto the spray push rod 10-2 fastens the rear end of the spray push rod 10-2 to the post-spray lifting frame 12-2 from the rear side of the post-spray lifting frame 12-2.

[0035] The pre-spray lifting frame 8-2 is further provided with a roller trough 9 running in the up-and-down direction. A roller for supporting the spray push rod 10-2 is installed in the roller trough 9. During use, the axis of the spray push rod 10-2 is adjusted to a position substantially coinciding with the axis of the centrifugal casting cylinder. The rear end of the spray push rod 10-2 is fastened to the post-spray lifting frame 12-2, and the roller shaft 7 of the roller is fastened to the pre-spray lifting frame 8-2. The spray push rod 10-2 located in the height adjustment slot of the pre-spray lifting frame 8-2 and rollingly supported by the roller moves forward under the drive of the spray mobile trolley 16-2, and the spray head 19 enters the cylinder to cooperate with the rotation of the cylinder to achieve inner wall spraying.

[0036] The spraying mechanism further includes a paint tank 21, and the paint tank 21 is connected to the spray head 19 through a paint pump 20 and a paint conveying pipeline. Specifically, the spray push rod 10-2 has a cavity for the paint conveying pipeline. The rear end of the cavity is connected to the paint pump 20, and the front end is connected to the spray head 19.

[0037] The following is an example to illustrate the usage method of the present invention.

[0038] Cleaning the inner wall of the cylinder: Start the cleaning power mechanism 3-1 to move the cleaning mobile platform 1-1 along the platform track 4 to a position where the cleaning push rod 10-1 is aligned with the center of the cylinder in the horizontal direction. Operate the post-cleaning lifting frame 12-1 and the pre-cleaning lifting frame 8-1 to align the cleaning push rod 10-1 with the center of the cylinder in the height direction. Start the centrifuge to make the cylinder enter the rotating state. Start the cleaning winch 14-1 to slowly move the cleaning push rod 10-1 forward along the cleaning trolley track 17-1, so that the cleaning brush 18 in the form of a wire brush contacts the inner wall of the cylinder, thereby achieving the effect of cleaning the inner wall of the cylinder. The cleaning push rod 10-1 is cleaned from one end of the cylinder to the other end and then returns. After a reciprocating cleaning process, the cleaning of the inner wall of the cylinder is completed; if it is checked that the inner wall of the cylinder is still not cleaned cleanly, another reciprocating cleaning process is performed.

[0039] Inner wall spraying of the mold cylinder: Start the spraying power mechanism 3-2 to move the spraying mobile platform 1-2 along the platform track 4 to the position where the spraying push rod 10-2 is aligned with the center of the mold cylinder in the horizontal direction. Operate the post-spraying lifting frame 12-2 and the pre-spraying lifting frame 8-2 to align the spraying push rod 10-2 with the center of the mold cylinder in the height direction. Start the centrifuge to make the mold cylinder enter the rotating state. Start the spraying hoist 14-2 to slowly move the spraying push rod 10-2 forward along the spraying trolley track 17-2, and the nozzle 19 evenly sprays the coating onto the inner wall of the mold cylinder, spraying from one end to the other end, and then returning from the other end. After a reciprocating spraying process, the spraying process of the coating on the inner wall of the mold cylinder is completed.

Claims

1. A cleaning and spraying device for the inner wall of a centrifugal casting mold cylinder, comprising a platform track running left and right, characterized in that: The device also includes a cleaning mechanism and a spraying mechanism respectively running on the platform track; the cleaning mechanism and the spraying mechanism respectively include a mobile platform, the bottom side of which is equipped with a platform roller that matches the platform track; a power mechanism is also provided on the mobile platform, the power mechanism includes a motor and a reducer, and the reducer is connected to the platform roller through a transmission shaft; a trolley track running forward and backward is provided on the mobile platform, and a mobile trolley that can move forward and backward along the trolley track is provided on the trolley track; a winch and a fixed pulley are installed on the mobile platform, and the winch includes a motor, a reducer and a winch drum connected in sequence; One end of the hoisting rope passing through the hoisting drum and the fixed pulley is connected to the rear end of the mobile trolley, and the other end is connected to the front end of the mobile trolley; a rear lifting frame is fixedly installed on the mobile trolley; a front lifting frame is fixedly installed at the front end of the mobile platform; the cleaning mechanism also includes a cleaning push rod with a rear end fixed to the rear lifting frame and a cleaning brush installed at the front end, the cleaning push rod is supported by the front lifting frame and can move forward and backward to pass through the front lifting frame; the spraying mechanism also includes a spraying push rod with a rear end fixed to the rear lifting frame and a spray head installed at the front end, the spraying push rod is supported by the front lifting frame and can move forward and backward to pass through the front lifting frame.

2. The cleaning and spraying device for the inner wall of a centrifugal casting mold tube as claimed in claim 1, characterized in that: The rear lifting frame and the front lifting frame are respectively provided with up-and-down height adjustment slots; the rear ends of the spray push rod and the cleaning push rod are located in the height adjustment slots of the corresponding rear lifting frame and are fastened to the corresponding rear lifting frame by a fixing plate and a fastening nut.

3. The cleaning and spraying device for the inner wall of a centrifugal casting mold tube according to claim 1 or 2, characterized in that: The front lifting frame is also provided with a roller groove extending up and down, and rollers for supporting corresponding push rods are installed in the roller groove.

4. The cleaning and spraying device for the inner wall of a centrifugal casting mold tube according to claim 1 or 2, characterized in that: The spraying mechanism also includes a paint tank, which is connected to the spray head via a paint pump and a paint delivery pipeline.

5. The cleaning and spraying device for the inner wall of a centrifugal casting mold tube as claimed in claim 4, characterized in that: The spray push rod has a cavity for a paint delivery pipeline, the rear end of the cavity is connected to the paint pump, and the front end of the cavity is connected to the spray head.

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