JP2009255259A - Barrel polishing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a barrel polishing machine covered with a lining layer capable of coping with various barrel polishing tanks different in shape and/or capacity using inexpensive molding boxes without using an expensive molding die. <P>SOLUTION: The barrel polishing machine is divided into a main body and a cover; a flange having a resin filling hole is formed at each of the opening edges of the main body and the cover both having a side plate; divided molding boxes and a molding box are inserted in the main body and the cover, respectively; gap filling plates to fill gaps to be generated between the main body as well as the cover and molding box end portions are movably attached to the molding boxes; support rods to support the molding boxes are provided to retain the shape of a casting cavity portion to be filled with urethane resin fluid between flange surfaces and the inner wall surfaces of the main body and of the cover; a closure plate to close the opening of the casting cavity portion is provided to be adjustable to move vertically and horizontally; and after filling with the resin and removal of the molding boxes, the resin surfaces formed by filling between the flange surfaces facing in the main body and in the cover are cut to be smooth jointingsurfaces. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a barrel polishing machine.

  Generally, in a barrel barrel grinder or a rotary barrel grinder, the inner wall of the barrel where the workpiece is thrown together with the abrasive material is coated with a lining layer on the inner wall of the barrel because the workpiece or abrasive material severely hits the inner wall. The shocking force is buffered to prevent damage to the inner wall.

  In order to form such a lining layer, a molding die inserted and arranged in a barrel to form a lining layer needs to form a lining layer to be filled between the inner wall of the barrel and the mold. Therefore, the mold itself is expensive, and even a barrel tank of the same capacity is not compatible with barrel tanks having different dimensions and shapes.

  In addition, the raw rubber fabric is pasted on the inner wall of the tank with an adhesive, and then a lining layer is formed by applying pressure to the roll by human power and then vulcanizing the raw rubber fabric. Manual work is difficult.

Therefore, there is an invention in which a polyurethane resin is baked on the inner wall surface of the barrel to form a lining layer. (Patent Document 1)
In addition, a lining sheet in which a barrel inner surface is divided into a plurality of sections, and a room temperature curable polyurethane elastomer layer is integrally attached to one surface of a woven fabric or a non-woven fabric formed in a size corresponding to each divided section, There is an invention in which a lining layer is formed by bonding the other side of the woven or nonwoven fabric to each divided section. (Patent Document 2)
There is also an invention in which the barrel is formed by assembling an end plate or a side plate in which the surface of the core plate is lined. (Patent Document 3)
Also, urethane rubber is poured from the polishing material inlet of the polygonal barrel tank to the bottom of the tank, and after the vulcanization time has elapsed, the adhesive is applied to the exposed end surface of the urethane rubber and the barrel tank is rotated, and urethane rubber is applied to the new bottom surface. There is an invention in which urethane rubber is adhered to the inner wall of a polygonal barrel tank by continuously performing the operation of pouring the water. (Patent Document 4)
JP-A-7-148659 JP 2007-331083 A JP-A-5-57595 JP 11-300596 A

In the invention according to Japanese Patent Laid-Open No. 7-148659, it is difficult to bake polyurethane resin on the inner surface of the barrel tank to form a uniform lining layer that closely resembles the inner surface of the barrel tank.
The invention according to Japanese Patent Application Laid-Open No. 2007-331083 requires time and effort to form a lining sheet corresponding to the size obtained by dividing the inner surface of the polishing tank and to form a polyurethane elastomer layer on one surface of each lining sheet.

The invention according to Japanese Patent Application Laid-Open No. 5-57595 is a so-called mini lining method in which an end plate and a side plate are prepared by lining a core plate and it takes time to assemble each plate.
The invention according to Japanese Patent Laid-Open No. 11-300596 is owned by the applicant of the present application, and is used in the present application for forming the lining layer of the barrel tank side plate.

In addition, since a gap is formed when the bonding surface of the lining layer attached to the lid and the main body constituting the barrel polishing machine is not in close contact, the residue is clogged during the polishing operation, and the residue As a result, the work piece rises and accumulates in a lump and the work piece is damaged, resulting in defective polishing.
In addition, foreign matter may enter the tank through the gap.

A barrel grinder is divided into a main body and a lid, and a flange is formed by bending the opening edge of the main body and the lid provided with side plates outward.
In order to apply urethane resin from the inner wall surface of the main body to the position that reaches the upper surface of the flange, a divided mold is inserted into the main body, and the flange with the upper part of the mold bent outward is wider than the flange of the main body. Stretching and providing an injection hole for urethane resin liquid.

  A stretchable cross-shaped support rod for holding a casting cavity that forms a lining layer by injecting a urethane resin liquid between the outer surface of the mold and the inner wall and flange top of the main body is attached to the inner wall of the mold At the same time, the upper end of the support rod is fixed by appropriate means.

  A mold plate divided into two is inserted into the barrel tank, and a connecting plate for joining the bottom end faces of the mold frame is provided.

  A casting cavity that forms a lining layer by injecting a urethane resin liquid is provided between the outer wall surface of the mold and the upper surface of the flange, which faces the inner wall surface and flange lower surface of the lid, and holds the casting cavity. A telescopic support rod is attached to the mold, and the upper end of the support rod is fixed by an appropriate means, and a urethane resin liquid injection hole is provided in the flange of the mold.

  When injecting urethane resin liquid from the injection hole of the urethane resin liquid into the casting cavity between the inner wall surface of the main body and flange top surface and the mold, prevent the urethane resin liquid from leaking from the opening of the casting cavity. The closing plate is attached to a bolt screwed with a double nut attached to the outside of the base on which the main body is placed so that the vertical height and left and right length can be adjusted, and a note provided between the lid and the formwork. The closure plate that prevents the urethane resin liquid from leaking outside from the opening of the mold cavity is attached to the bolt that is screwed into the double nut that is attached to the outside of the lid on which the lid is placed. Provide adjustable.

The main body is manufactured in a can, and the length of its body part may cause an error with the length of the body part of the mold to be inserted into the barrel tank, so there is a gap there, and the urethane resin liquid injected into the gap is a gap. There is a risk of overflowing. Therefore, a stuffing plate that prevents this gap from being formed is attached to the end of the mold so as to extend freely, and the body length of the main body and the body length of the mold are matched.
After the urethane resin liquid injected into the casting cavity has hardened, the mold is removed and the urethane resin surface formed on the flange top surface of the main body is machined into a smooth joint surface according to dimensions. At the same time, the urethane resin surface formed on the lower surface of the lid body is similarly machined into a smooth bonding surface as dimensioned so that the both bonding surfaces are brought into close contact with each other so that no gap is generated.

  When the urethane resin attached to the body inner wall surface and the flange surface of the main body and lid and the flange surface is cured, when one side plate surface is turned down, the urethane resin liquid is injected into the lower side plate inner wall surface from the opening of the polishing tank. Then, urethane resin adheres to the inner wall surface of the side plate and hardens to a smooth mirror surface, and then the inner wall surface of the side plate that has been adhered and hardened by urethane resin is turned upside down, and the urethane resin on the lower inner wall surface of the side plate is not covered. When the urethane resin liquid is injected onto the surface of the surface from the opening of the polishing tank, the urethane resin adheres to the inner wall surface of the side plate and hardens to a smooth mirror surface, and the series of steps is completed.

  Urethane resin lining layer corresponding to various barrel polishing machines with the same capacity but different size and shape by using an inexpensive mold without using an expensive molding die. In addition, the bonding surface of the lining layer attached to each flange surface of the main body and the lid is closely adhered without any gap, so that a poorly polished work piece is not generated. Objective.

  A lining layer can be easily formed on the inner wall surface of various barrel tanks having different dimensions and shapes with an inexpensive mold without using an expensive molding die. When injecting urethane resin liquid into a casting cavity that has a fixed volume, the height and width dimensions can be adjusted so that the urethane resin does not leak outside through the opening of the casting cavity. Can be blocked. In addition, since no gap is formed in the joining surface of the lining layer of the main body and the lid, the residue is not clogged and a workpiece with poor polishing is not produced. Furthermore, since there is no gap, foreign matter does not enter the tank from the outside. Since the inner wall surface of the barrel tank is formed in a polygonal shape, the workpiece and the abrasive are less likely to slip due to the shape resistance and the polishing efficiency is better than when the inner wall surface is cylindrical.

  The present invention can be applied to a centrifugal barrel polishing machine and a rotary barrel polishing machine, and can be applied not only to a polygonal polishing tank but also to a cylindrical one.

  The barrel polishing machine 1 according to the present invention is divided into a main body 1a and a lid body 1b, FIG. 1 is a longitudinal sectional view of a central portion showing a manufacturing process of the main body 1a, and FIG. 2 is a central portion showing a manufacturing process of the lid body 1b. It is a longitudinal cross-sectional view. A flange 3 is formed by bending the flange 3 horizontally outward from the opening edge of the deep container-like main body 1a having the side plate 2 and the shallow dish-like lid 1b having the side plate 2.

  In order to form the lining layer 5 by applying urethane rubber from the polygonal inner wall surface of the main body 1a until reaching the upper surface of the flange 3, the molds 6 and 6 divided into two are inserted into the main body 1a. A urethane resin liquid injection hole 7 is provided in a flange 6a formed by bending the upper part of the mold 6 horizontally outward. The flange 6a is formed wider than the flange 3 of the main body 1a. The mold 6 is formed in a polygon similar to the main body 1a.

  A stretchable cross to hold the casting cavity 8 for forming the lining layer 5 made of urethane rubber by injecting urethane resin liquid between the outer surface of the mold 6 and the inner wall surface of the main body 1a and the upper surface of the flange 3 A cylindrical support rod 9 is attached to the mold 6. The support rod 9 includes a turnbuckle 10 that can be expanded and contracted in the vertical and horizontal directions, and connects the joining ends of the divided mold frames 6 to each other so as to integrate the mold frames 6 into the vertical plate of the support rod 9. 9a is erected, the bracket 12 is attached to the middle portion of the vertical rod 9a, the horizontal rod 9b is attached to both sides of the bracket 12, the turnbuckle 10 is also provided in the middle portion of the horizontal rod 9b, and the tip of the horizontal rod 9b is shaped While abutting against the inner wall surface of the frame 6, a fixing member 13 for stably holding the vertical rod 9 a is placed across the upper end of the bolt 17 erected on the side of the main body 1 a.

  When the urethane resin liquid is injected from the urethane resin liquid injection hole 7 provided in the flange 6a into the inner wall surface of the main body 1a and the casting cavity 8 provided between the flange 3 and the molds 6 and 6, the casting cavity An angle-shaped closing plate 14 that prevents urethane resin liquid from leaking from the outside 8 is screwed into an angle-shaped mount 15 on which the main body 1a and the lid 1b are placed so that the height can be adjusted. It is attached to the upper part of the bolt 17 and the closing surface of the closing plate 14 is adjusted to be freely adjusted to the height of the barrel grinder 1 by operating the double nut 16 and the oblong plate 14 is provided with a laterally long hole 14a. Adjust so that it can move in the left-right direction to correspond to the width of flange 3.

  After injecting the urethane resin liquid into the casting cavity 8 and curing it, the support rod 9 is removed and the molds 6 and 6 are removed from the main body 1a.

  As shown in FIG. 5 a, after the lining layer 5 attached to the inner wall surface of the main body 1 a is cured, the main body 1 a is erected with the outer surface of one side plate 2 facing down, and the opening of the main body 1 a is opened on the inner wall surface of the lower side plate 2. When the urethane resin liquid is injected from the side wall, the urethane resin adheres to the inner wall surface of the side plate 2 and the lining layer 5 having a smooth mirror surface is formed.

  As shown in FIG. 5b, the main body 1a is turned upside down so that the outer surface of the side plate 2 to which the lining layer 5 is applied and hardened is turned down, and the lower lining layer 5 is placed on the inner wall surface of the side plate 2 that is not attached. When the urethane resin liquid is injected from the opening of the main body 1a, the lining layer 5 having a smooth mirror surface is deposited on the inner wall surface of the side plate 2. In this method, the method of Patent Document 4 owned by the applicant is used.

  Next, as shown in FIG. 2, a lining layer 5 made of urethane rubber is injected by injecting urethane resin liquid into the inner wall surface of a shallow dish-shaped lid 1b formed by bending the flange 3 horizontally from both side edges of the lid 1b. The lid 1b is placed on the base 15 with the opening of the lid 1b facing up, and a form 18 similar to the lid 1b is attached to the vertical support rod 9a and suspended from the fixing member 13, and the lid The casting cavity 8 is held between the body 1b and the mold 18, and the opening is closed using the closing plate 14 so that the urethane resin liquid does not leak outside from the opening of the casting cavity 8. Since the urethane resin liquid is injected into the casting cavity 8 from the urethane resin liquid injection hole 7 provided in the flange 18a, the lining layer 5 made of urethane rubber is formed on the inner wall surface of the lid 1b and the upper surface of the flange 3. is there.

  3 is a detailed view of the portion indicated by the arrow A in FIG. 1, and FIG. 4 is a detailed view of the portion indicated by the arrow B in FIG. 2. The casting formed between the main body 1a and the mold 6 and the lid 1b and the mold 18 is shown. A large amount of urethane resin liquid is poured into the cavity 8, and the upper surface of the flange 3 is thicker than the set thickness. After the urethane rubber is removed from the mold, the formed urethane rubber layer is machined to the set thickness. To a smooth surface 5a having

  FIG. 6 is a perspective view showing a separated state in which the lid 1b is put on the main body 1a having the lining layer 5 attached to the inner wall surface as described above, and the flange 3 of the lid 1b is in close contact with the flange 3 of the main body 1a. When the lid 1b is attached to the main body 1a by appropriate means and the centrifugal barrel polishing machine 1 according to the present invention is rotated, the polishing material is reliably polished. FIG. 7 is a plan view of the main body 1a. The connecting plate 11 is fitted to a long hole 11a welded to one of the molds 6 and provided at an end thereof with a locking pin 11b erected from the bottom surface of the forming frame 6. Are attached to the mold 6 so that the divided molds 6 are connected together. As shown in FIG. 7 and FIG. 8, the main body 1a is made of can, and the length of the body portion often causes an error with the length of the body portion of the mold to be inserted into the barrel tank. May occur, and the injected urethane resin liquid may overflow from the gap. In order to prevent the gap from being generated, the filling plate 19 is attached to the end of the mold so as to be freely stretched, and the notch groove 21 is formed in the filling plate 19 in order to match the body length of the main body with the body length of the mold. Is inserted into the locking pin 20 erected from the mold 6 and slid in the direction of the body portion so that no gap is formed.

  FIG. 9 shows that the closing plate 14 is mounted to be movable up and down via bolts 17 in which double nuts 16 are screwed into the gantry 15, and the bolts 17 are inserted into long holes 14 a provided in the flange of the closing plate 14 in the left-right direction. It is a side view of the state which enabled it to move corresponding to the width of the main body 1a.

The center part longitudinal cross-sectional view which shows the lining layer deposition process of the main body 1a of the barrel polisher 1. FIG. The center part longitudinal cross-sectional view which shows the lining layer deposition process of the cover body 1b same as the above. FIG. 2 is a detailed view of a portion indicated by an arrow A in FIG. FIG. 3 is a detailed view of a portion indicated by an arrow B in FIG. a After the lining layer 5 attached to the inner wall surface of the main body 1a is cured, the main body 1a is erected with the outer surface of one side plate 2 facing down, and urethane resin liquid is applied to the inner wall surface of one side plate 2 from the opening of the main body 1a. The front view of the state to inject | pour. b The front view of the state in which the main body 1a is inverted and the urethane resin liquid is injected into the inner wall surface of the other side plate 2 from the opening of the main body 1a. The perspective view which shows the isolation | separation state which covers the cover body 1b by which the lining layer 5 was adhered to the inner wall surface to the main body 1a with which the lining layer 5 was adhered to the inner wall surface. The top view of the main body 1a which shows the connecting plate 11 and the padding plate 19 for connecting the formwork 6 divided into two. 7 is a longitudinal sectional view of the main part in FIG. The side view of the state which attached the obstruction | occlusion plate 14 up and down and left-right movable via the volt | bolt 17 which screwed the double nut 16 in the mount frame 15. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Barrel grinder 1a Main body 1b Cover body 2 Side plate
3 flange 4 7 resin injection hole 5 lining layer 5a smooth surface 6 mold 6a, flange 9 support rod 10 turn buckle 11 connecting plate 13 fixing member 14 closing plate 14a long hole 17 bolt 18 mold 18a flange 19 padding plate 20 Stop pin 21 Notch groove

Claims (1)

A barrel grinder is divided into a main body and a lid, and a flange is formed by bending the opening edge of the main body and the lid with side plates outward.
In order to apply urethane resin from the inner wall surface of the main body until it reaches the upper surface of the flange, a divided mold is inserted into the main body, and a urethane resin liquid injection hole is provided in the flange that is bent outwardly from the upper part of the mold ,
A telescopic support rod for holding a casting cavity that forms a lining layer by injecting a urethane resin liquid between the outer surface of the mold and the inner wall and flange upper surface of the main body is attached to the mold and the main body. The end faces of the formwork inserted into the inside are detachably joined with a connecting plate.
In order to retain the casting cavity that forms the lining layer by injecting the urethane resin liquid between the inner wall surface of the lid and the flange lower surface, a stretchable support rod is attached to the mold, and the urethane resin liquid is attached to the flange of the mold An injection hole is provided.
Cover the opening of the casting cavity so that the urethane resin liquid injected from the casting cavity provided on the body and lid does not leak to the outside. The movement of is provided to be adjustable.
A notch groove is provided in the stuffing plate that fills the gap formed between the side plate of the main body and the end of the mold and between the side plate of the lid and the end of the form, and the notch is locked to a locking pin provided at the end of the form. Then, the padding plate is slidably attached to the end of the mold.
After injecting the urethane resin liquid into the casting cavity, the mold is removed and the upper surface of the flange of the main body and the cured urethane resin surface attached to the lower surface of the flange of the lid are cut into a smooth bonded surface with a set thickness. A barrel polishing machine.

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