JPH0737325U - Equipment for scraping off adhering materials on a stirring shaft - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a device for scraping off deposits adhering to a stirring shaft. [Structure] A lid in which a stirring shaft provided at an upper portion of a stirring tank is rotatably and slidably arranged vertically, a fixed wall projecting from an upper surface of the lid, and a fixed wall facing the stirring shaft. A main shaft that is slidably arranged, a pair of guide shafts that are arranged parallel to the main shaft on a fixed wall, a sleeve that is slidably inserted in each guide shaft, a tip of each sleeve on the stirring shaft side, and a main shaft. A device for scraping off adhering substances on a stirring shaft, comprising a supporting plate installed to be joined to the tip portion and a scraper detachably disposed on the surface of the supporting plate facing the stirring shaft, the supporting plate and the sleeve. ,
The scraper slides simultaneously with the main shaft.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for scraping and removing deposits such as paints attached to a stirring shaft of a lifting stirrer.

[0002]

[Prior art and problems to be solved]

 Conventionally, a method of cleaning the stirring shaft of a lifting stirrer after stirring a fluid is generally performed by an operator while applying a cleaning liquid with a cleaning brush or the like. However, in this method, when an organic solvent is used as the cleaning liquid, there is a possibility that the human body may be adversely affected and the working environment may be deteriorated. In addition, a receiver or pedestal was required to receive the sag of the cleaning liquid during cleaning. In addition, the deposits on the stirring shaft became defective, which caused a large amount of stains on the cleaning liquid. In recent years, in the paint industry and the like, as a pipeless factory, a system for automatically transporting a stirring tank has been used for changing types, lots, and the like. In this system, the conventional method in which the worker cleans the stirring shaft while applying the cleaning liquid with the cleaning brush does not improve the work efficiency because the automatic transfer system for the stirring tank does not function sufficiently. There was also a problem that it was not preferable from the viewpoint of work environment. Therefore, the inventors of the present invention can safely and securely remove the deposits attached to the stirring shaft of the lifting stirrer and return them to the stirring tank without the need for a receptacle or a cradle. As a result, the results of the earnest research have been carried out in order to obtain a device capable of fully functioning the automatic transportation system of the stirring tank and removing the deposits on the stirring shaft without causing any adverse effects on the human body or deterioration of the working environment. The inventors have completed the present invention that can achieve the above object.

[0003]

[Means for Solving the Problems]

 According to the present invention, "1. a lid in which an agitation shaft provided in an upper portion of an agitation tank is rotatably and vertically slidably penetrated, a fixed wall protruding from an upper surface of the lid, and an agitation on the fixed wall A main shaft slidably arranged along the shaft, a pair of guide shafts arranged in parallel to the main shaft on the fixed wall, a sleeve slidably inserted into each guide shaft, and a stirring shaft side of each sleeve. 1. A device for scraping off adhering substances on a stirring shaft, which comprises a support plate that is installed by being joined to the tip part of the spindle and a tip part of the main shaft, and a scraper that is detachably mounted on the surface of the support plate facing the stirring shaft. The scraper attached to the support plate is detachably installed via the scraper holder, and the adhering device scraping device for the agitation shaft described in item 1. 3. The scraper holder is attached to the support plate via a compression spring. Installed device for scraping off adhering matter on the stirring shaft described in item 2 4. The apparatus for scraping deposits on a stirring shaft according to any one of items 1 to 3, wherein the scraper is a sheet-shaped scraper having a length that is at least twice the diameter of the stirring shaft. The fixed wall provided on the lid is a cylindrical wall surrounding the stirring shaft, and the adhering member scraping device for the stirring shaft according to any one of items 1 to 4. 6. The fixed wall provided on the lid is agitated. 7. A device for scraping off deposits on a stirring shaft according to any one of items 1 to 4, which is a cylindrical wall having a ceiling surrounding the shaft 7. Support plate, sleeve, scraper and main shaft slide At the same time, the device for scraping off adhering matter of a stirring shaft according to any one of items 1 to 6 that slides in a direction perpendicular to the stirring shaft at the same time. "

[0004]

[Action]

 The device of the present invention scrapes and removes the adhering substances attached to the stirring shaft of a stirrer that can be moved up and down by hydraulic pressure, etc., by pressing the scraper against the rotating stirring shaft and sliding the stirring shaft up and down. Is. The scraped deposits descend with the stirring shaft and fall into the stirring tank due to centrifugal force.

One feature of the device of the present invention is that the scraper can be pushed or released from the stirring shaft by operating the main shaft. According to the present invention, the main shaft is installed slidably toward the agitation shaft on a fixed wall that is provided so as to project upward on a lid that is provided so that the agitation shaft is rotatable and slidable vertically. Install a pair of guide shafts on the fixed wall at the position sandwiched between them, and insert a sleeve slidably into each guide shaft, and attach a support plate to the tip of the sleeve on the stirring shaft side. Also, since the tip of the main shaft is joined to the support plate, the support plate and the sleeve slide simultaneously with the main shaft by operating the main shaft. Since the support plate is provided with a scraper, when the main shaft is moved toward the stirring shaft, the scraper can come into contact with the stirring shaft to scrape off the adhered substances. Since the support plate is held and guided by the pair of guide shafts, the scraper and the stirring shaft can be brought into uniform contact with each other. Since the main shaft is slidably arranged on the fixed wall, the main shaft can be operated stably, and the support plate, scraper, and sleeve slide together as the main shaft is operated, making operation extremely easy. Is.

The scraper may be directly provided on the support plate, but if it is arranged via the scraper holder, there is an advantage that it can be easily attached and detached. Also, if a spring is placed between the scraper holder and the support plate and connected via the spring, the pressing pressure can be made uniform when pressing the scraper against the stirring shaft, and the pressing state changes due to lateral runout of the stirring shaft. Has the effect of being absorbed. The pressing pressure of the scraper against the stirring shaft is usually preferably 0.5 to 5.0 kg · f / cm ² G.

Since the scraper scrapes off the deposits on the stirring shaft, it is preferable that the scraper is in the form of a sheet or a plate, and the length thereof is at least twice the diameter of the stirring shaft in order to cope with lateral runout of the stirring shaft. It is preferable. The scraper may be made of any material that has strength, flexibility, abrasion resistance and the like against rotational contact with the stirring shaft, and examples thereof include plastics such as polypropylene and Teflon.

[0008]

【Example】

 An example of the scraping removal device according to the present invention is shown in FIGS. 1 to 3, and an explanatory view showing an example of a positional relationship between the scraping removal device according to the present invention and an agitator is shown in FIG. The present invention will be specifically described based on these drawings.

In FIG. 1 and a front view of the apparatus of an example of the present invention viewed from above the lid, a lid in which a stirring shaft 14 installed on a stirring tank is vertically slidably and rotatably pierced is provided. The scraping / removing device of the present invention is fixed to a fixed wall 13 a protruding above 13. The fixing wall may be a plate facing the agitation shaft, but if it is a cylindrical body that surrounds the agitation shaft, it is possible to prevent the adherent from scattering during scraping. If a ceiling is provided, the prevention of scattering will be further improved. It is preferable to dispose the fixed wall in a detachable manner for convenience of cleaning. A main shaft 1 is slidably installed on a fixed wall by a bearing 9, and a pair of guide shafts 2 are fixed by nuts at positions sandwiching the main shaft in parallel with the main shaft. Further, in this example, the guide shaft 2 is L-shaped, and one end of the guide shaft 2 on the stirring shaft side is fixed to the ceiling portion of the fixed wall.

A tip of the main shaft 1 on the side of the stirring shaft is vertically attached to the support plate 4, and sleeves 3 slidably fitted to the respective guide shafts 2 are joined to both ends of the support plate 4. . In this embodiment, a knob 10 is attached to the tip of the fixed wall of the main shaft 1 protruding outside so that it can be easily handled by hand. A scraper holder 6 is attached to the side of the support plate 4 facing the stirring shaft, and the scraper 5 is pressed to the scraper holder 6 by a pressing plate 7 and fixed with screws. In this embodiment, two compression springs 8 are arranged between the scraper holder 6 and the support plate 4, so that when the scraper 5 is pressed against the stirring shaft 14, it is possible to prevent lateral vibration of the stirring shaft and the pressing pressure. Can be made uniform and buffered. The scraper may be directly installed on the support plate without using the scraper holder, but it is preferable that the scraper is detachably provided. When the scraper 5 is pressed against the stirring shaft 14, the knob 10 may be manually pushed in the stirring shaft direction to move the main shaft 1. The main shaft 1, the support plate 4, the sleeve 3, the scraper holder 6, and the scraper 5 move together with the operation of the main shaft 1. In the device of the present invention, the main shaft 1 can be automatically moved by hydraulic or pneumatic cylinders as well as manual operation.

In this embodiment, the stopper 11 is attached near the knob 10 of the main shaft 1. However, when the stopper is arranged, when the scraper 5 is moved to a predetermined position where the scraper 5 is brought into pressure contact with the stirring shaft 14, the predetermined position is set. Easy to hold position. The stopper 11 is fixed to the fixed position of the guide shaft 2. In this embodiment, as shown in FIG. 3, notches 18 are provided at both ends of the stopper 11 in accordance with the positions of the guide shafts, and the notches are fixed to the guide shaft 2 by tightening the fixing nuts 12. I can do it.

In order to scrape and remove the deposits adhering to the stirring shaft using the scraping and removing device of the present invention, after stirring the contents in the stirring tank 16, the stirring shaft is pulled up from the contents and the scraper is attached. The stirring shaft may be rotated while being pressed against the stirring shaft having the object, and the stirring shaft may be moved upward and / or downward. The scraped deposits descend along the stirring shaft 14 and reach the stirring blades 15, and fall into the stirring tank by the centrifugal force. In FIG. 4, the state before pulling up is shown by the solid line, and the state of the stirrer with the stirring shaft pulled up to the top is shown by the one-dot chain line. The stirring tank and lid are in the same state before and after pulling up.

When the scraping removal is completed, the fixing nut 12 shown in FIG. 1 is loosened, the stopper 11 is removed from the guide shaft 2, and the knob 10 is pulled toward you to detach the scraper 5 from the stirring shaft 14. The cross-sectional shape of the scraper may be any of flat type, concave type, and convex type as shown in FIGS. 5 to 7. In order to elastically respond to the lateral runout of the stirring shaft, it is preferable that the length is at least twice the diameter of the stirring shaft.

[0014]

[Effect of device]

 The device of the present invention can easily scrape off the adhering substances adhering to the stirring shaft, and the scraped adhering substances are returned to the stirring tank, so that the number of defects is reduced. After the removal by scraping, the floor and the like will not be contaminated by the deposits dripping from the stirring shaft and blades. In the automatic transport system for stirring tanks, after the stirring tank is transferred after the stirring is completed, even if it takes time until the moving cleaning liquid tank for the final cleaning of the stirring shaft and the stirring blade is sent, the adhered matter may drop. Since it does not exist, the automatic transfer system can be fully functioned, and since the degree of contamination of the cleaning liquid by one cleaning is reduced, the number of times the cleaning liquid is repeatedly used increases.

[Brief description of drawings]

FIG. 1 is an overhead view showing an example of a scraping and removing device for a stirring shaft according to the present invention.

FIG. 2 is a front view showing an example of a scraping and removing device for a stirring shaft according to the present invention.

FIG. 3 is a side view showing an example of a scraping and removing device for a stirring shaft according to the present invention.

FIG. 4 is an explanatory diagram showing an example of a positional relationship between a scraping removal device for a stirring shaft and a stirrer.

FIG. 5 is an explanatory diagram showing an example of a cross-sectional shape of a scraper.

FIG. 6 is an explanatory diagram of another example showing the cross-sectional shape of the scraper.

FIG. 7 is an explanatory diagram of another example showing the cross-sectional shape of the scraper.

[Explanation of symbols]

 1 Main shaft 2 Guide shaft 3 Sleeve 4 Support plate 5 Scraper 6 Scraper holder 7 Holding plate 8 Compression spring 9 Bearing 10 Knob 11 Stopper 12 Fixing nut 13 Lid 13a Fixed wall protruding above the lid 14 Stirring shaft 15 Stirring blade 16 Stirring tank 17 Scraping removal device 18 Notch

Claims (7)

[Scope of utility model registration request] 1. A lid having a stirring shaft provided at an upper portion of a stirring tank rotatably and vertically slidably arranged therethrough, a fixed wall provided so as to project on an upper surface of the lid, and a stirring shaft provided on the fixed wall. A main shaft slidably arranged toward the main shaft, a pair of guide shafts arranged in parallel with the main shaft on the fixed wall, a sleeve slidably inserted in each guide shaft, and a tip of each sleeve on the stirring shaft side. And a scraper detachably arranged on the surface of the support plate facing the stirring shaft, and a scraper detachably attached to the stirring plate. 2. The adhering material scraping device for a stirring shaft according to claim 1, wherein the scraper disposed on the support plate is detachably installed via a scraper holder. 3. The adhering material scraping device for a stirring shaft according to claim 2, wherein the scraper holder is installed on the support plate via a compression spring. 4. The scraper in the form of a sheet having a length that is at least twice the diameter of the stirring shaft.
A device for scraping off deposits on a stirring shaft according to any one of 1. 5. The adhering material scraping device for a stirring shaft according to claim 1, wherein the fixed wall provided on the lid is a cylindrical wall surrounding the stirring shaft. 6. The adhering material scraping device for a stirring shaft according to claim 1, wherein the fixed wall provided on the lid is a cylindrical wall having a ceiling surrounding the stirring shaft. 7. The adherent scrape on the stirring shaft according to claim 1, wherein the support plate, the sleeve and the scraper slide in the direction perpendicular to the stirring shaft at the same time when the main shaft slides. Device.