JP7380312B2 - Gasket assembly tool and gasket automatic assembly device - Google Patents

Description

The present invention relates to a gasket assembling tool and an automatic gasket assembling device, and more particularly, the present invention relates to a gasket assembling tool and an automatic gasket assembling device for assembling a ring-shaped gasket into an annular groove formed in the bottom of a cylindrical filter. This invention relates to an automatic gasket assembly device.

As a conventional gasket assembling tool, one for assembling a ring-shaped gasket into an annular groove formed in the bottom surface of a cylindrical filter is generally known (see, for example, Patent Document 1). This Patent Document 1 includes a presser tube that is arranged so that its axis faces in the vertical direction, and a holder that is arranged on the inner peripheral side of the presser tube, and the holder is located below the lower end of the presser tube. A gasket assembling tool is disclosed that is suspended from a presser tube so as to be able to rise and fall freely.

In the above gasket assembly tool, by lowering the presser tube from a state in which the filter is arranged with its bottom facing upward and the presser tube is positioned above the filter, the holder comes into contact with the bottom of the filter and presses against the presser tube. The gasket held by the holder is pushed downward by the presser cylinder and assembled into the annular groove. Thereby, the gasket assembly work can be automated, the cost of the filter can be reduced, and the number of workers involved in gasket assembly can be reduced.

JP 2017-61015 Publication

However, in the conventional gasket assembling tool described above, since the outer circumferential side of the gasket held by the holder is open, the gasket tends to escape to the outer circumferential side when the gasket is pushed downward by the presser cylinder. Therefore, it may be difficult to easily assemble the gasket into the annular groove of the filter. For example, problems such as a part of the gasket floating from the annular groove of the filter may occur.

The present invention has been made in view of the above-mentioned current situation, and an object of the present invention is to provide a gasket assembling tool that can easily assemble a gasket into an annular groove of a filter, and an automatic gasket assembling device equipped with the same.

In order to solve the above problem, the invention according to claim 1 is a gasket assembly tool for assembling a ring-shaped gasket into an annular groove formed in the bottom of a cylindrical filter, the axial center of which is a presser tube disposed so as to face in the vertical direction; a holder disposed on the inner circumferential side of the presser tube and capable of holding the gasket on its outer circumferential surface; and a holder disposed on the outer circumferential side of the presser tube. a guide, each of the holder and the guide is suspended from the presser tube so as to be movable up and down so as to protrude below the lower end of the presser tube, and the guide includes a A guide surface is formed to press the outer peripheral side of the gasket, and when the filter is disposed with the bottom surface facing upward and the presser tube is positioned above the filter, the presser tube and the filter are removed. By making the holder and the guide relatively close to each other, the holder and the guide come into contact with the bottom surface of the filter and rise relative to the presser tube, so that the gasket held by the holder is pressed by the guide surface. The gist is that the holding tube is pushed downward by the presser cylinder and assembled into the annular groove.
According to a second aspect of the invention, in the first aspect of the invention, the guide surface is formed in a tapered shape whose diameter increases toward the lower end of the guide.
In order to solve the above problem, the invention according to claim 3 is an automatic gasket assembling device for assembling a ring-shaped gasket into an annular groove formed in the bottom part of a cylindrical filter, an assembly unit including the gasket assembly tool according to item 2; a gasket unit in which the gasket is disposed; and a filter unit in which the filter is disposed with the bottom surface facing upward; a displacement drive section that displaces the presser tube between a position above the gasket unit and a position above the filter unit; and an elevation drive section that raises and lowers the presser tube, and the presser tube is located above the gasket unit. By lowering the presser tube from the upper position, the gasket arranged in the gasket unit is held by the holder, and the presser tube is lowered from the position above the filter unit. The gist is that the gasket held by the holder is assembled into the annular groove of the filter disposed in the filter unit by lowering the gasket.
The invention according to claim 4 is the invention according to claim 3, wherein the gasket unit includes a base body, a plurality of gasket units are arranged on the base body along the circumferential direction, and the gasket is placed on the base body. a divided mounting body having a mounting surface, the divided mounting body is supported movably in the radial direction of the gasket placed on the mounting surface, and the divided mounting body is supported by a biasing body so as to be movable in the radial direction of the gasket. The divided mounting body is biased toward the centripetal side of the gasket, and the divided mounting body has an inclined surface that is brought into contact with a presser rod provided on the lower surface of the holder to move the divided mounting body toward the distal side of the gasket. A locking wall that can be locked on the inner peripheral side of the gasket is supported so as to be movable up and down, and the locking wall is urged upwardly by a biasing body and is attached to the holder. has a contact surface that can be contacted, and by lowering the presser tube from a state where the presser tube is located above the gasket unit, the presser rod comes into contact with the inclined surface and the presser rod is brought into contact with the inclined surface. The locking wall is moved to the distal side of the gasket together with the divided mounting body, and the gasket is expanded by the locking of the locking wall, and the holder is brought into contact with the contact surface of the locking wall. The gist is that by lowering the locking wall in contact with the gasket, the locking of the locking wall to the gasket is released and the gasket is held in the holder.

According to the gasket assembly tool of the present invention, the presser tube is arranged such that its axis is directed in the vertical direction, and the holder is arranged on the inner circumferential side of the presser tube and can hold the gasket on its outer circumferential surface. , a guide disposed on the outer circumferential side of the presser tube, each of the holder and the guide is suspended from the presser tube so as to be able to rise and fall so as to protrude below the lower end of the presser tube, and the guide includes a , a guide surface is formed that presses the outer peripheral side of the gasket held by the holder.
Then, by moving the presser tube and the filter relatively close to each other in a state in which the filter is arranged with its bottom facing upward and the presser tube is positioned above the filter, the holder and the guide come into contact with the bottom surface of the filter, and the presser tube is positioned above the filter. By rising against the holder, the gasket held by the holder is pushed downward by the presser cylinder while being pressed by the guide surface, and is assembled into the annular groove. As a result, when the gasket is pushed downward by the presser cylinder, the outer peripheral side of the gasket is pressed by the guide surface and the gasket is held in an oblique state, so that the gasket is prevented from escaping to the outer peripheral side. Therefore, the gasket can be easily assembled into the annular groove of the filter.

Furthermore, when the guide surface is formed in a tapered shape whose diameter increases toward the lower end of the guide, the outer peripheral side of the gasket is effectively pressed by the guide surface.

According to the automatic gasket assembly apparatus of the present invention, the assembly unit includes the above-described gasket assembly tool, the gasket unit in which the gasket is disposed, and the filter unit in which the filter is disposed with the bottom facing upward, The assembly unit includes a displacement drive section that displaces the presser tube between a position above the gasket unit and a position above the filter unit, and an elevation drive section that raises and lowers the presser tube.
Then, by lowering the presser tube from the state where the presser tube is located above the gasket unit, the gasket arranged in the gasket unit is held in the holder, and the presser tube is lowered from the state where the presser tube is located above the filter unit. By lowering the cylinder, the gasket held by the holder is assembled into the annular groove of the filter arranged in the filter unit. Thereby, the gasket of the gasket unit can be easily held by the gasket assembly tool, and the gasket can be easily assembled into the annular groove of the filter of the filter unit.

Further, the gasket unit includes a base body and a divided mounting body, and the divided mounting body is supported so as to be movable in a radial direction of the gasket placed on the mounting surface. , the gasket is biased toward the centripetal side by a biasing body, an inclined surface is formed on the divided mounting body, and a locking wall is supported so as to be movable up and down, and the locking wall is If the presser rod is biased upward by a biasing body and has a contact surface, the presser rod can be tilted by lowering the presser tube from a position above the gasket unit. The locking wall is moved to the distal side of the gasket together with the divided mounting body, and the gasket is expanded by the locking of the locking wall, and the holder is brought into contact with the contact surface of the locking wall. By lowering the locking wall, the locking of the locking wall to the gasket is released and the gasket is held in the holder. Thereby, the gasket can be more easily held in the gasket unit using the gasket assembly tool.

The invention will be further explained in the following detailed description by way of non-limiting examples of typical embodiments according to the invention and with reference to the mentioned drawings, in which like reference numerals refer to Similar parts are shown through several figures.
FIG. 1 is a front view of an automatic gasket assembly device according to an embodiment. FIG. 2 is a longitudinal cross-sectional view of a gasket assembly tool according to an embodiment. FIG. 3 is a longitudinal cross-sectional view of a gasket unit according to an example. FIG. 2 is a longitudinal cross-sectional view of a filter unit according to an example. FIG. 3 is an explanatory diagram for explaining the action (gasket holding operation) of the gasket automatic assembly device, in which (a) shows a state in which the gasket is being expanded, and (b) shows the holder in contact with the locking wall. (c) shows a state in which the gasket is held on the outer peripheral surface of the holder. FIG. 4 is an explanatory diagram for explaining the action of the gasket automatic assembly device (gasket assembly operation), in which (a) shows a state in which the holder is in contact with the bottom surface of the filter, and (b) shows the state in which the holder is in contact with the bottom surface of the filter; The outer periphery of the gasket is shown in a pressed state, and (c) shows the guide in contact with the bottom of the filter. FIG. 2 is an explanatory diagram for explaining the action of the automatic gasket assembly device (gasket assembly operation), in which (a) shows a state in which the gasket is assembled in the annular groove of the filter, and (b) shows the state in which the presser cylinder is Indicates rising condition. 7(a) is an enlarged view of the main part of FIG. 6(c), and FIG. ) is shown, and (c) shows an enlarged view of the main parts of FIG. 7(b). FIG. 7 is a front view of an automatic gasket assembling device according to another embodiment. FIG. 7 is a vertical cross-sectional view of a main part of an automatic gasket assembling device according to still another embodiment.

The matter presented herein is exemplary and is intended to be an illustrative description of embodiments of the invention, and is intended to be a description that will most effectively and easily understand the principles and conceptual features of the invention. This is stated for the purpose of providing an idea. In this regard, it is not intended to present more structural details of the invention than are necessary for a fundamental understanding of the invention, and the description together with the drawings illustrates some aspects of the invention. It will be clear to those skilled in the art how to implement it in practice.

<Gasket assembly tool>
For example, as shown in FIGS. 1 and 2, the gasket assembly tool according to the present embodiment has a ring-shaped groove (8) formed in a bottom surface (2a) of a cylindrical filter (2). A gasket assembly tool (3) for assembling the gasket (9), which includes a presser tube (11) arranged so that its axis faces in the vertical direction, and a presser tube (11) arranged on the inner peripheral side of the presser tube (11). and a holder (12) capable of holding the gasket (9) on its outer peripheral surface, and a guide (13) disposed on the outer peripheral side of the presser tube (11), and the holder (12) and the guide ( 13) are each suspended from the presser tube (11) so as to be movable up and down so as to protrude below the lower end of the presser tube (11), and each of the presser tubes (13) is attached to a guide (13) that is held by the holder (12). A guide surface (13a) is formed that presses the outer peripheral side of the gasket (9).
For example, as shown in FIGS. 6 to 8, the filter (2) is placed with its bottom portion (2a) facing upward, and the presser tube (11) is positioned above the filter (2). (11) and the filter (2) are brought relatively close to each other, so that the holder (11) and the guide (13) come into contact with the bottom surface (2a) of the filter (2) and rise relative to the presser tube (11). As a result, the gasket (9) held by the holder (12) is pushed downward by the presser tube (11) while being pressed by the guide surface (13a), and is assembled into the annular groove (8).

In the gasket assembly tool according to the present embodiment, for example, as shown in FIG. 2, the guide surface (13a) is formed in a tapered shape whose diameter increases toward the lower end of the guide (13). be able to. The inclination angle (θ) of this guide surface (13a) with respect to the axis of the presser tube (11) is, for example, 20 degrees to 40 degrees (preferably 30 degrees to 35 degrees). Further, the guide surface (13a) may be linear or curved, for example, in a cross section along the axis of the presser tube (11). Further, for example, a protrusion may be formed on the guide surface (13a).

<Gasket automatic assembly device>
For example, as shown in FIG. 1, the gasket automatic assembly device according to the present embodiment has a ring-shaped gasket ( 9), which includes an assembly unit (4) comprising the gasket assembly tool (3) according to the above-described embodiment, and a gasket unit (4) in which the gasket (9) is arranged. 5), and a filter unit (6) in which the filter (2) is arranged with the bottom surface (2a) facing upward, and the assembly unit (4) has a presser tube (11) attached to the gasket unit (5). It includes a displacement drive section (21) that displaces the presser tube (11) between the upper position (A) and the upper position (B) of the filter unit (6), and an elevation drive section (22) that raises and lowers the presser tube (11).
For example, as shown in FIG. 5 etc., by lowering the presser tube (11) from the state where the presser tube (11) is located at the upper position (A) of the gasket unit (5), the gasket unit (5) A gasket (9) arranged in the holder (12) is held in the holder (12). Furthermore, as shown in FIGS. 6 and 7, for example, by lowering the presser tube (11) from the state where the presser tube (11) is located at the upper position (B) of the filter unit (6), the filter unit The gasket (9) held by the holder (12) is assembled into the annular groove (8) of the filter (6) located at (6).

The structure, displacement form, etc. of the displacement drive section (21) are not particularly limited. The displacement drive unit (21) includes a drive source (26) such as a cylinder or a motor, as shown in FIG. , 6) between the upper positions (A, B). Furthermore, examples of the displacement form of the displacement drive unit (21) include one or a combination of two or more of rotation, turning, elevation, horizontal movement, and the like.
The structure, elevating form, etc. of the elevating drive unit (22) are not particularly limited. The elevating drive unit (22) includes a drive source (28) such as a cylinder or a motor, and can move the presser tube (11) up and down by driving the drive source (28).

For example, as shown in FIG. 3, the gasket automatic assembly device according to the present embodiment includes a base body (31) and a plurality of gasket units (5) disposed on the base body (31) along the circumferential direction. a divided mounting body (32) having a mounting surface (32a) on which the gasket (9) is placed; The mounted gasket (9) is supported so as to be movable in the radial direction, and is biased toward the centripetal side of the gasket (9) by the biasing body (33). is formed with an inclined surface (32b) that is brought into contact with the presser rod (15) provided on the lower surface of the holder (12) and moves the divided mounting body (32) toward the distal side of the gasket (9). A locking wall (35) that can be locked on the inner peripheral side of the gasket (9) is supported so as to be movable up and down, and the locking wall (35) is urged upward by a biasing body (36). In addition, there is an embodiment in which the holder (12) has a contact surface (35a) against which the holder (12) can contact.
In the above-mentioned form, for example, as shown in FIG. (15) comes into contact with the inclined surface (32b), and the locking wall (35) is moved to the distal side of the gasket (9) together with the divided mounting body (32), and due to the locking of the locking wall (35). As the gasket (9) expands, the holder (12) comes into contact with the abutment surface (35a) of the locking wall (35) and lowers the locking wall (35), thereby increasing the locking of the gasket (9). The locking of the stop wall (35) is released and the gasket (9) is held in the holder (12).

For example, as shown in FIG. 1, the gasket automatic assembly device according to the present embodiment is equipped with a plurality of the above-mentioned gasket assembly tools (3), and the gasket unit (3) is connected to the gasket unit ( An example is a configuration in which the holding operation of the gasket (9) in 5) and the assembling operation of the gasket (9) in the filter unit (6) are performed simultaneously.

Note that the reference numerals in parentheses of each configuration described in the above embodiment indicate a correspondence relationship with a specific configuration described in an example described later.

Hereinafter, the present invention will be specifically explained by examples using the drawings. In this embodiment, an oil filter for filtering engine oil for a vehicle is exemplified as the "filter" according to the present invention.

(1) Configuration of automatic gasket assembling device As shown in FIG. This is used to assemble the gasket 9 (see Fig. 4). This automatic gasket assembling device 1 includes an assembling unit 4 having a plurality of (two in the figure) gasket assembling tools 3, a gasket unit 5 in which a gasket 9 is disposed, and a filter 2 with a bottom surface 2a facing upward. A filter unit 6 is provided.

As shown in FIG. 2, the gasket assembly tool 3 has a presser tube 11 arranged so that its axis faces in the vertical direction, and is arranged on the inner circumferential side of the presser tube 11 and on the outer circumferential surface of the presser tube 11. It includes a holder 12 (punch 12) capable of holding the gasket 9, and a guide 13 arranged on the outer peripheral side of the presser cylinder 11.

The presser tube 11 is formed into a cylindrical shape with an open bottom end. A piston rod 28a of a cylinder 28, which will be described later, is connected to the upper wall of this presser cylinder 11. Further, a guide hole 11a extending in the vertical direction is formed in the peripheral wall of the presser cylinder 11. A plurality of guide holes 11a are provided in the circumferential direction of the presser tube 11.

The holder 12 is suspended from the presser tube 11 so as to be movable up and down so as to protrude below the lower end of the lower end portion 11b of the presser tube 11. This holder 12 is formed into a cylindrical shape with an open upper end. Furthermore, a presser rod 15 is provided on the bottom wall of the holder 12 and extends downward. This holding rod 15 can be inserted into an inlet 47 (described later) of the filter 2 (see FIG. 6). Furthermore, a guide hole 12a extending in the vertical direction is formed in the peripheral wall of the holder 12. A plurality of guide holes 12a are provided in the circumferential direction of the holder 12. Furthermore, the outer edge of the lower surface of the bottom wall of the holder 12 can come into contact with the bottom surface 2a of the filter 2 (specifically, an annular convex portion 44 on the inner peripheral side, which will be described later) (see FIG. 6(a)). .

The guide 13 is suspended from the presser tube 11 so as to be movable up and down so as to protrude below the lower end of the lower end portion 11b of the presser tube 11. This guide 13 is formed into a cylindrical shape with an open upper end and a lower end. Further, a guide pin 17 is attached to the guide 13 and projects toward the inner circumference. A plurality of guide pins 17 are provided in the circumferential direction of the guide 13. Further, the outer edge of the lower end surface of the guide 13 can come into contact with the bottom surface 2a of the filter 2 (specifically, an annular convex portion 45 on the outer peripheral side, which will be described later) (see FIG. 6(c)).

The guide pin 17 is inserted into the guide hole 11a of the presser cylinder 11 and the guide hole 12a of the holder 12. The guide pin 17 is locked to the lower end of the guide hole 11a of the presser cylinder 11 due to the weight of the guide 13, and is locked to the upper end of the guide hole 12a of the holder 12 due to the weight of the holder 12. Therefore, the holder 12 and the guide 13 are suspended from the presser tube 11. In this suspended state, the lower end surface of the guide 13 is located below the lower end surface of the lower end portion 11b of the presser tube 11. Furthermore, the lower surface of the bottom wall of the holder 12 is located below the lower end surface of the lower end portion 11b of the presser tube 11 and below the lower end surface of the guide 13.

The guide 13 is formed with a guide surface 13a that presses the outer circumferential side of the gasket 9 held on the outer circumferential surface of the holder 12 obliquely downward toward the centripetal side (see FIG. 8(a)). This guide surface 13a is arranged on the inner peripheral side of the lower end portion of the guide 13. Further, the guide surface 13a is formed in a tapered shape that increases in diameter as it goes downward. Furthermore, the inclination angle θ of the guide surface 13a with respect to the axis of the presser tube 11 is approximately 30 degrees.

As shown in FIG. 1, the assembly unit 4 includes a displacement drive section 21 that displaces the presser tube 11 between an upper position A of the gasket unit 5 and an upper position B of the filter unit 6, and a displacement drive section 21 that moves the presser tube 11 up and down. It is equipped with an elevating drive unit 22 for moving the vehicle.

The displacement drive unit 21 includes a support column 24, a rotation arm 25 supported by the support column 24 so as to be rotatable about an up-down axis, and a motor 26 for rotating the rotation arm 25. By rotating the rotary arm 25 by this motor 26, the presser cylinder 11 is displaced between positions A and B above each unit 5, 6.

The elevating drive unit 22 is constituted by cylinders 28 provided at both ends of the rotary arm 25. The presser cylinder 11 is connected to the piston rod 28a of the cylinder 28. The presser tube 11 is raised and lowered by this expansion and contraction operation of the cylinder 28.

As shown in FIG. 3, the gasket unit 5 includes a base body 31 and a plurality of (for example, four) divided mounting bodies 32 disposed on the base body 31 along the circumferential direction. This divided mounting body 32 has a mounting surface 32a on which the gasket 9 is mounted. Further, the divided mounting body 32 is supported so as to be movable in the radial direction of the gasket 9 placed on the mounting surface 32a with respect to the base body 31. Further, the divided mounting body 32 is biased toward the centripetal side of the gasket 9 by a biasing body 33 such as a spring provided on the base body 31 . Further, the divided mounting body 32 is formed with an inclined surface 32b that the presser rod 15 comes into contact with to move the divided mounting body 32 toward the distal side of the gasket 9.

A locking wall 35 that can be locked to the inner peripheral side of the gasket 9 placed on the mounting body 32a is supported on the divided mounting body 32 so as to be movable up and down. This locking wall 35 is biased upward by a biasing body 36 such as a spring. Furthermore, the locking wall 35 is formed with a contact surface 35a against which the outer edge of the lower surface of the bottom wall of the holder 12 can come into contact.

In this embodiment, the gasket 9 is automatically set on the mounting surface 32a of the divided mounting body 32 constituting the gasket unit 5 by an appropriate supply mechanism (not shown).

As shown in FIG. 4, the filter unit 6 includes a container 41 that holds the filter 2 with the bottom surface 2a facing upward. This filter 2 has a built-in filter element (not shown). Further, the annular groove 8 formed on the bottom surface 2a of the filter 2 includes an annular protrusion 44 (claw part 44) on the inner circumference side, an annular protrusion 45 (sealing part 45) on the outer circumference side, and both protrusions 44, It is formed by a bottom part 46 that connects the lower ends of 45. The annular convex portion 44 on the inner peripheral side extends with an enlarged diameter toward the distal end side. Furthermore, an oil inlet 47 is formed in the bottom portion 2a of the filter 2.

The gasket 9 includes a ring-shaped main body 51 and a flange 52 extending from the bottom of the main body 51 toward the inner circumference. The distance S between the inner circumferential end and the outer circumferential end of this gasket 9 is set to a value larger than the opening width W of the annular groove 8. Furthermore, the bottom of the main body 51 of the gasket 9 is placed on the placement surface 32a of the divided placement body 32.

In this embodiment, it is assumed that the filter 2 is automatically set in the container 41 constituting the filter unit 6 by an appropriate supply/removal mechanism (not shown), and the filter 2 is automatically taken out from the container 41. .

(2) Function of automatic gasket assembling device Next, a description will be given of the function of the automatic gasket assembling device 1 having the above configuration. As shown in FIG. 1, the presser cylinder 11 of one gasket assembly tool 3 is located at position A above the gasket unit 5, and the presser cylinder 11 of the other gasket assembly tool 3 is located at position B above the filter unit 6. The presser cylinders 11 are simultaneously lowered from the position at . As a result, each gasket assembling tool 3 performs the holding operation and assembling operation of the gasket 9 at the same time.

In the holding operation of the gasket 9, as shown in FIG. 5, the presser rod 15 comes into contact with the inclined surface 32b due to the lowering of the presser cylinder 11, and the locking wall 35 moves to the distal side of the gasket 9 together with the divided mounting body 32. (See FIG. 5(a)). At this time, the gasket 9 is expanded by the locking wall 35 moving toward the distal side locking onto the inner peripheral side of the gasket 9. Furthermore, as the presser cylinder 11 continues to descend, the outer edge of the lower surface of the bottom wall of the holder 12 comes into contact with the contact surface 35a of the locking wall 35, causing the locking wall 35 to descend (see FIG. 5(b)). . This lowering of the locking wall 35 releases the locking of the locking wall 35 from the gasket 9, and the gasket 9 is held on the outer peripheral surface of the holder 12 (see FIG. 5(c)). Thereafter, the presser cylinder 11 of the gasket assembly tool 3 holding the gasket 9 is raised toward its original position.

In the assembly operation of the gasket 9, as shown in FIGS. 6 and 7, the holder 12 comes into contact with the bottom surface portion 2a of the filter 2 (specifically, the annular convex portion 44 on the inner peripheral side) by lowering the presser tube 11. It comes in contact with the presser cylinder 11 and is released by rising (see FIG. 6(a)). Then, as the presser cylinder 11 continues to descend, the gasket 9 held on the outer peripheral surface of the holder 12 is pressed by the guide surface 13a and held in an oblique state (see FIG. 6(b)).

Furthermore, as the presser tube 11 continues to descend, the guide 13 comes into contact with the bottom portion 2b of the filter 2 (specifically, the annular convex portion 45 on the outer circumferential side), rises relative to the presser tube 11, and is released. (See FIG. 6(c) and FIG. 8(a)). Then, as the presser tube 11 continues to descend, the gasket 9 held on the outer peripheral surface of the holder 12 is pushed downward by the presser tube 11 while being pressed by the guide surface 13a, and is assembled into the annular groove 8 ( (See FIGS. 7(a) and 8(b)). Thereafter, the presser cylinder 11 of the gasket assembly tool 3 that does not hold the gasket 9 is raised toward its original position (see FIGS. 7(b) and 8(c)).

Next, due to the rotation of the rotating arm 25, the presser tube 11 of the gasket assembly tool 3 not holding the gasket 9 is positioned at the upper position A of the gasket unit 5, and the presser tube 11 of the gasket assembly tool 3 holding the gasket 9 is positioned at the upper position A of the gasket unit 5. The presser cylinder 11 is located at a position B above the filter unit 6.
Thereafter, the above-described holding operation of the gasket 9, assembling operation, and displacing operation of the gasket assembling tool 3 are repeatedly performed.

(3) Effects of Embodiment According to the gasket assembly tool 3 of this embodiment, the presser tube 11 is arranged so that its axis faces in the vertical direction, and the presser tube 11 is arranged on the inner peripheral side of the presser tube 11. It includes a holder 12 capable of holding the gasket 9 on its outer peripheral surface, and a guide 13 arranged on the outer peripheral side of the presser tube 11, and each of the holder 12 and the guide 13 protrudes below the lower end of the presser tube 11. The guide 13 is suspended from the presser tube 11 so as to be movable up and down, and the guide 13 is formed with a guide surface 13a that presses the outer peripheral side of the gasket 9 held by the holder 12.
Then, by lowering the presser tube 11 from the state where the filter 2 is arranged with the bottom surface 2a facing upward and the presser tube 11 is positioned above the filter 2, the holder 12 and the guide 13 come into contact with the bottom surface 2a of the filter 2. By coming into contact with the presser tube 11 and rising relative to the presser tube 11, the gasket 9 held by the holder 12 is pushed downward by the presser tube 11 while being pressed by the guide surface 13, and is assembled into the annular groove 8. Thereby, when the gasket 9 is pushed downward by the presser cylinder 11, the outer circumferential side of the gasket 9 is pressed by the guide surface 13a and the gasket 9 is held in an oblique state, so that the gasket 9 is difficult to escape to the outer circumferential side. Therefore, the gasket 9 can be easily assembled into the annular groove 8 of the filter 2.

In particular, according to the gasket assembly tool 3 of this embodiment, when the gasket 9 is assembled into the annular groove 8 of the filter 2, the holder 12 comes into contact with the annular protrusion 44 (claw section 44) of the filter 2 and is released. At the same time, since the guide 13 comes into contact with the annular protrusion 45 (sealed part 45) of the filter 2 and is released, an excessive load is not applied to each of the annular protrusions 44 and 45 of the filter 2, thereby preventing scratches on the filter 2. Defects such as sticking are less likely to occur. Furthermore, since the guide 13 provided on the outer peripheral side of the presser cylinder 11 is used, assembly can be performed at high speed and with low thrust.

Further, in this embodiment, the guide surface 13a is formed into a tapered surface shape whose diameter increases toward the lower end of the guide 13. Thereby, the outer peripheral side of the gasket 9 is effectively pressed by the guide surface 13a.

According to the gasket automatic assembly device 1 of this embodiment, an assembly unit 4 including the above-mentioned gasket assembly tool 3, a gasket unit 5 in which the gasket 9 is arranged, and a filter 2 arranged with the bottom surface 2a facing upward. The assembly unit 4 includes a displacement drive section 21 that displaces the presser tube 11 between the upper position A of the gasket unit 5 and the upper position B of the filter unit 6, and It is provided with a lifting drive unit 22 for lifting and lowering. Then, by lowering the presser tube 11 from the state where the presser tube 11 is located at the upper position A of the gasket unit 5, the gasket 9 disposed on the gasket unit 5 is held in the holder 12. Furthermore, by lowering the presser tube 11 from the state where the presser tube 11 is located at the upper position B of the filter unit 6, the gasket 9 held by the holder 12 is inserted into the annular groove 8 of the filter 2 disposed in the filter unit 6. Can be assembled. Thereby, the gasket 9 of the gasket unit 5 can be easily held by the gasket assembly tool 3, and the gasket 9 can be easily assembled into the annular groove 8 of the filter 2 of the filter unit 6.

In particular, according to the gasket automatic assembly device 1 of this embodiment, the assembly of the gasket 9 can be automated, the cost of the filter 2 can be reduced (for example, the cost of the filter 2 can be reduced by 1.7 yen), and the gasket 9 can be assembled automatically. The number of workers involved in assembly can be reduced by one.

Further, in this embodiment, the gasket unit 5 includes a base body 31 and a divided mounting body 32, and the divided mounting body 32 moves in the radial direction of the gasket 9 placed on the mounting surface 32a. It is freely supported and biased toward the centripetal side of the gasket 9 by a biasing body 33, and the divided mounting body 32 is formed with an inclined surface 32b, and a locking wall 35 is movable up and down. The locking wall 35 is urged upward by a biasing body 36 and has an abutment surface 35a. As a result, by lowering the presser tube 11 from the state where the presser tube 11 is located at the upper position A of the gasket unit 5, the presser rod 15 comes into contact with the inclined surface 32b, and the locking wall 35 is moved together with the divided mounting body 35. The gasket 9 is moved to the distal side of the gasket 9, and the gasket 9 is expanded by the locking of the locking wall 35, and the holder 12 contacts the contact surface 35a of the locking wall 35 to lower the locking wall 35. As a result, the locking of the locking wall 35 to the gasket 9 is released, and the gasket 9 is held in the holder 12. Therefore, the gasket assembly tool 3 can more easily hold the gasket 9 of the gasket unit 5.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and various modifications may be made within the scope of the present invention depending on the purpose and use. That is, in the above embodiment, the assembly unit 4 includes two gasket assemblies 3, but the assembly unit 4 is not limited to this. For example, as shown in FIG. 9, the assembly unit 4 may include three or more gasket assemblies 3. The assembly unit 4 may be an assembly unit 4, or the assembly unit 4 may be an assembly unit 4 including one gasket assembly tool 3.

Further, in the above embodiment, the gasket unit 5 (see FIG. 5(c)) that holds the gasket 9 in the holder 12 while being spaced apart from the guide surface 13a is illustrated, but the present invention is not limited to this, and for example, as shown in FIG. As shown, the gasket unit 5 may be configured such that the gasket 9 is held in the holder 12 while the outer peripheral side is pressed by the guide surface 13a.

Further, in the above embodiment, the holder 12 and the guide 13 are suspended from the presser tube 11 by their own weight, but the present invention is not limited to this. The holder 12 and guide 13 may be suspended.

Further, in the above embodiment, the gasket 9 is held and assembled by displacement of the presser tube 11, but the present invention is not limited to this. The gasket 9 may be held and assembled by displacement of the mounting body 32 (that is, the gasket 9) or the container 41 (that is, the filter 2).

Further, in the above embodiment, the holding operation and the assembling operation of the gasket 9 are performed at the same time, but the present invention is not limited to this. You may also do so.

Further, in the above embodiment, the filter 2 for vehicles is illustrated, but the filter 2 is not limited to this, and may be used for polymer industry, chemical industry, pharmaceutical/food industry, aircraft/ship/machinery industry, fuel oil/lubricating oil, etc.・Can also be used as a fluid filtration filter for hydraulic oil, cutting oil, and measurement/instrumentation equipment.

The foregoing examples are for illustrative purposes only and are not to be construed as limiting the invention. Although the invention has been described in terms of exemplary embodiments, the language used in describing and illustrating the invention is to be understood to be in a descriptive and illustrative rather than a restrictive sense. Changes may be made in the form as detailed herein without departing from the scope or spirit of the invention and within the scope of the appended claims. Although reference has been made herein to specific structures, materials and embodiments in the detailed description of the invention, it is not intended to limit the invention to the disclosure herein; rather, the invention is defined by the appended claims. It shall cover all functionally equivalent structures, methods and uses within the scope.

The present invention is not limited to the embodiments detailed above, and various modifications and changes can be made within the scope of the claims of the present invention.

The present invention is widely used as a technique for assembling a ring-shaped gasket into an annular groove formed on the bottom surface of a cylindrical filter.

1; Gasket automatic assembly device, 2; Filter, 2a; Bottom part, 3; Gasket assembly tool, 4; Assembly unit, 5; Gasket unit, 6; Filter unit, 8; Annular groove, 9; Gasket, 11 Holder cylinder, 12; Holder, 13; Guide, 13a; Guide surface, 15; Presser rod, 21; Displacement drive section, 22; Lifting drive section, 31; Base body, 32; Divided mounting body, 32a; Placement Surface, 32b; Inclined surface, 33; Biasing body, 35; Locking wall, 35a; Contact surface, 36; Biasing body, A; Position above gasket unit, B: Position above filter unit.

Claims (5)

A gasket assembly tool for assembling a ring-shaped gasket into an annular groove formed on the bottom of a cylindrical filter,
a presser tube arranged so that its axis faces in the vertical direction;
a holder arranged on the inner peripheral side of the presser cylinder and capable of holding the gasket on the outer peripheral surface thereof;
a guide disposed on the outer peripheral side of the presser cylinder,
Each of the holder and the guide is suspended from the presser tube so as to be movable up and down so as to protrude below the lower end of the presser tube,
The guide is formed with a guide surface that presses the outer peripheral side of the gasket held by the holder,
The guide surface is formed in a tapered shape whose diameter increases toward the lower end of the guide, and when the filter is arranged with the bottom surface facing upward and the presser cylinder is located above the filter. is provided to face the annular groove in the vertical direction,
A state in which the filter is arranged with the bottom surface facing upward, the presser tube is located above the filter, and the guide surface and the annular groove face each other in the vertical direction with the gasket held by the holder in between. By bringing the presser tube and the filter closer to each other, the holder and the guide come into contact with the bottom surface of the filter and rise relative to the presser tube, so that the The gasket assembling tool is characterized in that the gasket is pressed diagonally downward toward the centripetal side by the guide surface, pushed downward by the presser cylinder, and assembled into the annular groove. 2. The gasket assembly tool according to claim 1, wherein the guide is formed with an abutment surface that extends to a lower end of the guide surface and abuts the bottom surface portion of the filter. An automatic gasket assembling device that assembles a ring-shaped gasket into an annular groove formed in the bottom of a cylindrical filter,
An assembly unit comprising the gasket assembly tool according to claim 1 or 2 ,
a gasket unit in which the gasket is arranged;
a filter unit in which the filter is arranged with the bottom surface facing upward;
The assembly unit includes a displacement drive section that displaces the presser tube between a position above the gasket unit and a position above the filter unit, and an elevation drive section that raises and lowers the presser tube,
By lowering the presser tube from a state where the presser tube is located above the gasket unit, the gasket arranged on the gasket unit is held by the holder,
By lowering the presser tube from a state where the presser tube is positioned above the filter unit, the gasket held by the holder is assembled into the annular groove of the filter disposed in the filter unit. Gasket automatic assembly device featuring: The gasket unit includes a base body, and a plurality of divided mounting bodies arranged circumferentially on the base body and each having a mounting surface on which the gasket is mounted,
The divided mounting body is supported so as to be movable in the radial direction of the gasket placed on the mounting surface, and is urged toward the centripetal side of the gasket by a biasing body,
The divided mounting body is formed with an inclined surface that is brought into contact with a presser rod provided on the lower surface of the holder to move the divided mounting body toward the distal side of the gasket. A locking wall that can be locked on the side is supported so that it can be raised and lowered,
The locking wall is urged upward by a biasing body and has an abutment surface on which the holder can abut,
By lowering the presser tube from the state where the presser tube is located above the gasket unit, the presser rod comes into contact with the inclined surface, and the locking wall and the divided mounting body When the gasket is moved to the side and the gasket is expanded by the locking of the locking wall, the holder contacts the abutting surface of the locking wall and lowers the locking wall, thereby expanding the gasket. 4. The gasket automatic assembly apparatus according to claim 3 , wherein the gasket is held in the holder by releasing the locking of the locking wall from the locking wall. An automatic gasket assembling device that assembles a ring-shaped gasket into an annular groove formed in the bottom of a cylindrical filter,
an assembly unit including a gasket assembly tool;
a gasket unit in which the gasket is arranged;
a filter unit in which the filter is arranged with the bottom surface facing upward;
The gasket assembly tool includes a presser cylinder arranged so that its axis is directed in the vertical direction, and a holder arranged on the inner peripheral side of the presser cylinder and capable of holding the gasket on its outer peripheral surface. a guide disposed on the outer peripheral side of the presser cylinder,
Each of the holder and the guide is suspended from the presser tube so as to be movable up and down so as to protrude below the lower end of the presser tube,
The guide is formed with a guide surface that presses the outer peripheral side of the gasket held by the holder,
By bringing the presser tube and the filter relatively close to each other from a state in which the filter is disposed with the bottom surface facing upward and the presser tube is positioned above the filter, the holder and the guide can be attached to the filter. By coming into contact with the bottom portion and rising relative to the presser tube, the gasket held by the holder is pushed downward by the presser tube while being pressed by the guide surface, and is assembled into the annular groove. is,
The assembly unit includes a displacement drive section that displaces the presser tube between a position above the gasket unit and a position above the filter unit, and an elevation drive section that raises and lowers the presser tube,
By lowering the presser tube from a state where the presser tube is located above the gasket unit, the gasket arranged on the gasket unit is held by the holder,
By lowering the presser tube from a state where the presser tube is located above the filter unit, the gasket held by the holder is assembled into the annular groove of the filter disposed in the filter unit,
The gasket unit includes a base body, and a plurality of divided mounting bodies arranged circumferentially on the base body and each having a mounting surface on which the gasket is mounted,
The divided mounting body is supported so as to be movable in the radial direction of the gasket placed on the mounting surface, and is urged toward the centripetal side of the gasket by a biasing body,
The divided mounting body is formed with an inclined surface that is brought into contact with a presser rod provided on the lower surface of the holder to move the divided mounting body toward the distal side of the gasket. A locking wall that can be locked on the side is supported so that it can be raised and lowered,
The locking wall is urged upward by a biasing body and has an abutment surface on which the holder can abut,
By lowering the presser tube from the state where the presser tube is located above the gasket unit, the presser rod comes into contact with the inclined surface, and the locking wall and the divided mounting body When the gasket is moved to the side and the gasket is expanded by the locking of the locking wall, the holder contacts the abutting surface of the locking wall and lowers the locking wall, thereby expanding the gasket. An automatic gasket assembling apparatus characterized in that the gasket is held in the holder by releasing the locking of the locking wall from the locking wall.

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