JP2021134797A - Gasket assembling tool and gasket automatic assembling device - Google Patents

Abstract

To provide a gasket assembling tool which can easily assemble a gasket to an annular groove of a filter.SOLUTION: A gasket assembling tool 3 comprises a pressing cylinder 11, a holder 12, and a guide 13, the holding and the guide are hung from the pressing cylinder 11 so as to be liftable, and the guide is formed with a guide face 13a for pressing a gasket 9 to an external peripheral side. Then, the holder and the guide abut on a bottom face part 2a of a filter and are lifted with respect to the pressing cylinder by making the pressing cylinder and the filter 2 relatively approximate each other, and thereby the gasket held at the holder is pushed out downward by the pressing cylinder in a state of being pressed by the guide face, and assembled to an annular groove 8.SELECTED DRAWING: Figure 2

Description

The present invention relates to a gasket assembling tool and an automatic gasket assembling device. More specifically, the present invention includes a gasket assembling tool for assembling a ring-shaped gasket into an annular groove formed on the bottom surface of a tubular filter. Regarding automatic gasket assembly equipment.

As a conventional gasket assembly tool, a tool for assembling a ring-shaped gasket to an annular groove formed on the bottom surface of a tubular filter is generally known (see, for example, Patent Document 1 and the like). The patent document 1 includes a presser cylinder arranged so that its axis faces in the vertical direction and a holder arranged on the inner peripheral side of the presser cylinder, and the holder is below the lower end of the presser cylinder. A gasket assembly tool that is suspended so as to be able to move up and down with respect to a holding cylinder is disclosed.

In the above gasket assembly tool, the filter is arranged with the bottom surface facing upward, and the presser cylinder is lowered from the state where the presser cylinder is located above the filter, so that the holder comes into contact with the bottom portion of the filter and the presser cylinder is pressed. The gasket held in the holder is pushed downward by the holding cylinder and assembled into the annular groove. As a result, the gasket assembling work can be automated, the cost of the filter can be reduced, and the number of workers involved in the gasket assembling can be reduced.

JP-A-2017-61015

However, in the above-mentioned conventional gasket assembly tool, since the outer peripheral side of the gasket held by the holder is opened, the gasket easily escapes to the outer peripheral side when the gasket is pushed downward by the holding cylinder. Therefore, it may be difficult to easily assemble the gasket in the annular groove of the filter. For example, a problem 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 situation, and an object of the present invention is to provide a gasket assembling tool capable of easily assembling a gasket into an annular groove of a filter and an automatic gasket assembling device including the gasket assembling tool.

In order to solve the above problem, the invention according to claim 1 is a gasket assembling tool for assembling a ring-shaped gasket into an annular groove formed on the bottom surface of a tubular filter, the axis thereof. Are arranged on the inner peripheral side of the presser cylinder, the holder capable of holding the gasket on the outer peripheral surface thereof, and the outer peripheral side of the presser cylinder. Each of the holder and the guide is suspended from the holding cylinder so as to project downward from the lower end of the holding cylinder, and the guide is held by the holder. A guide surface for pressing the outer peripheral side of the gasket is formed, and the presser cylinder and the filter are pressed from a state where the filter is arranged with the bottom surface facing upward and the presser cylinder is located above the filter. By making them relatively close to each other, the holder and the guide come into contact with the bottom surface of the filter and rise with respect to the holding cylinder, so that the gasket held by the holder is pressed by the guide surface. The gist is that the gasket is pushed downward by the holding cylinder and assembled into the annular groove.
The gist of the invention according to claim 2 is that, in the invention according to claim 1, 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 on the bottom surface of a tubular filter according to claim 1 or 2. The assembly unit includes an assembly unit including the gasket assembly tool according to 2, a gasket unit on which the gasket is arranged, and a filter unit in which the filter is arranged with the bottom surface facing upward. A displacement drive unit that displaces the presser cylinder between the upper position of the gasket unit and the upper position of the filter unit, and an elevating drive unit that raises and lowers the presser cylinder are provided, and the presser cylinder is the gasket unit. By lowering the presser cylinder from the state where it is located at the upper position, the gasket arranged in the gasket unit is held by the holder, and the presser cylinder is held from the state where the presser cylinder is located at the upper position of the filter unit. It is a gist that the gasket held in the holder is assembled to the annular groove of the filter arranged in the filter unit by lowering.
The invention according to claim 4 is the invention according to claim 3, wherein a plurality of the gasket units are arranged on the base body and the base body along the circumferential direction, and the gasket is placed on the base body. A split mounting body having a mounting surface is provided, and the split mounting body is movably supported in the radial direction of the gasket mounted on the mounting surface described above, and is supported by the urging body. It is urged to the centripetal side of the gasket, and the split mounting body has an inclined surface that is brought into contact with a pressing rod provided on the lower surface of the holder to move the split mounting body to the distal side of the gasket. In addition to being formed, a locking wall that can be locked on the inner peripheral side of the gasket is supported so as to be able to move up and down, and the locking wall is urged upward by an urging body and the holder. Has an abutting surface capable of contacting the gasket unit, and by lowering the pressing cylinder from a state where the pressing cylinder is located above the gasket unit, the pressing rod comes into contact with the inclined surface and said. The locking wall is moved to the distal side of the gasket together with the split mounting body, the gasket is expanded by locking the locking wall, and the holder hits the contact surface of the locking wall. The gist is that the locking wall is released from being locked to the gasket by lowering the locking wall in contact with the gasket, and the gasket is held by the holder.

According to the gasket assembly tool of the present invention, a holding cylinder whose axis is arranged so as to face in the vertical direction, and a holder which is arranged on the inner peripheral side of the holding cylinder and can hold a gasket on its outer peripheral surface. The holder and the guide are provided with a guide arranged on the outer peripheral side of the holding cylinder, and each of the holder and the guide is suspended from the holding cylinder so as to project downward from the lower end of the holding cylinder. , A guide surface is formed to press the outer peripheral side of the gasket held by the holder.
Then, the holder and the guide come into contact with the bottom surface of the filter by bringing the presser tube and the filter closer to each other than when the filter is arranged with the bottom surface facing upward and the presser tube is located above the filter. The gasket held in the holder is pushed downward by the holding 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 holding 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 in the annular groove of the filter.

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

According to the automatic gasket assembling device of the present invention, an assembling unit provided with the above-mentioned gasket assembling tool, a gasket unit on which the gasket is arranged, and a filter unit on which the filter is arranged with the bottom surface facing upward are provided. The assembly unit includes a displacement drive unit that displaces the presser cylinder between the upper position of the gasket unit and the upper position of the filter unit, and an elevating drive unit that raises and lowers the presser cylinder.
Then, by lowering the presser cylinder from the state where the presser cylinder is located above the gasket unit, the gasket arranged in the gasket unit is held by the holder, and the presser cylinder is held from the state where the presser cylinder is located above the filter unit. By lowering the cylinder, the gasket held by the holder is assembled to the annular groove of the filter arranged in the filter unit. As a result, the gasket of the gasket unit can be easily held by the gasket assembling tool, and the gasket can be easily assembled to the annular groove of the filter of the filter unit.

Further, the gasket unit includes a base body and a split mounting body, and the split mounting body is supported so as to be movable in the radial direction of the gasket mounted on the above-mentioned mounting surface. , The gasket is urged on the centripetal side by an urging body, an inclined surface is formed on the divided mounting body, and the locking wall is supported so as to be able to move up and down. , When the presser cylinder is urged upward by the urging body and has a contact surface, the presser rod is tilted by lowering the presser cylinder from the state where the presser cylinder is located above the gasket unit. The locking wall is moved to the centrifugal side of the gasket together with the split mounting body in contact with the surface, the gasket is expanded by locking the locking wall, and the holder is in contact with the contact surface of the locking wall. By lowering the locking wall, the locking wall is released from the locking wall and the gasket is held by the holder. This allows the gasket assembly tool to more easily hold the gasket in the gasket unit.

The present invention will be further described in the following detailed description with reference to the plurality of references mentioned with reference to non-limiting examples of typical embodiments according to the invention. Similar parts are shown through several figures.
It is a front view of the gasket automatic assembly apparatus which concerns on embodiment. It is a vertical cross-sectional view of the gasket assembly tool which concerns on Example. It is a vertical sectional view of the gasket unit which concerns on Example. It is a vertical sectional view of the filter unit which concerns on Example. It is explanatory drawing for demonstrating the operation (holding operation of a gasket) of the said gasket automatic assembly apparatus, (a) shows the state in the process of expanding a gasket, and (b) is a holder hitting a locking wall. The state of contact is shown, and (c) shows the state where the gasket is held on the outer peripheral surface of the holder. It is explanatory drawing for demonstrating the operation (the assembly operation of the gasket) of the said gasket automatic assembly apparatus, (a) shows the state which a holder is in contact with the bottom surface part of a filter, and (b) is by the guide surface. The outer peripheral portion of the gasket is pressed, and (c) indicates a state in which the guide is in contact with the bottom surface of the filter. It is explanatory drawing for demonstrating the operation (the assembly operation of the gasket) of the said automatic gasket assembly apparatus, (a) shows the state which the gasket is assembled in the annular groove of a filter, and (b) is the holding cylinder. Indicates a rising state. It is explanatory drawing for demonstrating the operation (the assembly operation of the gasket) of the said gasket automatic assembly apparatus, (a) shows the enlarged view of the main part of FIG. 6 (c), (b) is FIG. 7 (a). ) Is shown, and FIG. 7C shows an enlarged view of the main part of FIG. 7B. It is a front view of the gasket automatic assembly apparatus which concerns on other forms. It is a main part vertical sectional view of the gasket automatic assembly apparatus which concerns on further another form.

The matters shown here are for exemplifying and exemplifying embodiments of the present invention, and are considered to be the most effective and effortless explanations for understanding the principles and conceptual features of the present invention. It is stated for the purpose of providing what seems to be. In this regard, it is not intended to show structural details of the invention beyond a certain degree necessary for a fundamental understanding of the invention, and some embodiments of the invention are provided by description in conjunction with the drawings. It is intended to clarify to those skilled in the art how it is actually realized.

<Gasket assembly tool>
As shown in FIGS. 1 and 2, for example, the gasket assembly tool according to the present embodiment has a ring shape in an annular groove (8) formed in the bottom surface portion (2a) of the tubular filter (2). A gasket assembly tool (3) for assembling a gasket (9), the presser cylinder (11) arranged so that its axis faces in the vertical direction, and the presser cylinder (11) arranged on the inner peripheral side of the presser cylinder (11). A holder (12) capable of holding the gasket (9) on the outer peripheral surface thereof and a guide (13) arranged on the outer peripheral side of the holding cylinder (11) are provided, and the holder (12) and the guide ( Each of 13) is hung from the holding cylinder (11) so as to project downward from the lower end of the holding cylinder (11), and is held by the holder (12) on the guide (13). A guide surface (13a) for pressing the outer peripheral side of the gasket (9) is formed.
Then, for example, as shown in FIGS. 6 to 8 and the like, the filter (2) is arranged with the bottom surface portion (2a) facing upward, and the presser cylinder (11) is located above the filter (2). By bringing the (11) and the filter (2) relatively close to each other, the holder (11) and the guide (13) come into contact with the bottom surface portion (2a) of the filter (2) and rise with respect to the holding cylinder (11). As a result, the gasket (9) held by the holder (12) is pushed downward by the holding cylinder (11) while being pressed by the guide surface (13a), and is assembled into the annular groove (8).

As 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. Examples of the inclination angle (θ) of the holding cylinder (11) of the guide surface (13a) with respect to the axial center include 20 degrees to 40 degrees (preferably 30 degrees to 35 degrees). Further, the guide surface (13a) may be linear or curved in a cross section along the axis of the holding cylinder (11), for example. Further, for example, a protrusion may be formed on the guide surface (13a).

<Automatic gasket assembly device>
In the gasket automatic assembly device according to the present embodiment, for example, as shown in FIG. 1, a ring-shaped gasket (8) is formed in an annular groove (8) formed on the bottom surface (2a) of the tubular filter (2). An automatic gasket assembling device (1) for assembling 9), the assembling unit (4) including the gasket assembling tool (3) according to the above-described embodiment, and the gasket unit (9) on 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) uses the holding cylinder (11) of the gasket unit (5). It includes a displacement drive unit (21) that displaces between the upper position (A) and the upper position (B) of the filter unit (6), and an elevating drive unit (22) that raises and lowers the presser cylinder (11).
Then, for example, as shown in FIG. 5, the gasket unit (5) is lowered by lowering the pressing cylinder (11) from the state where the pressing cylinder (11) is located at the upper position (A) of the gasket unit (5). The gasket (9) arranged in the holder (12) is held by the holder (12). Further, for example, as shown in FIGS. 6 and 7, the filter unit is lowered by lowering the pressing cylinder (11) from the state where the pressing cylinder (11) is located at the upper position (B) of the filter unit (6). The gasket (9) held by the holder (12) is assembled to the annular groove (8) of the filter (6) arranged in (6).

The structure, displacement form, etc. of the displacement drive unit (21) are not particularly limited. As shown in FIG. 1, for example, the displacement drive unit (21) includes a drive source (26) such as a cylinder and a motor, and the presser cylinder (11) is driven by the drive source (26) to each unit (5). , 6) can be displaced between the upper positions (A, B). Further, as the displacement form of the displacement drive unit (21), for example, one type or a combination of two or more types of rotation, turning, ascending / descending, horizontal movement and the like can be mentioned.
The structure, elevating form, etc. of the elevating drive unit (22) are not particularly limited. The elevating drive unit (22) includes, for example, a drive source (28) such as a cylinder or a motor, and the presser cylinder (11) can be moved up and down by driving the drive source (28).

As the gasket automatic assembly device according to the present embodiment, for example, as shown in FIG. 3, a plurality of gasket units (5) are provided on the base body (31) and the base body (31) along the circumferential direction. A split mounting body (32) having a mounting surface (32a) on which the gasket (9) is placed is provided, and the split mounting body (32) is placed on the mounting surface (32a). It is supported so as to be movable in the radial direction of the mounted gasket (9), and is urged to the centripetal side of the gasket (9) by the urging body (33), and is mounted on the divided mounting body (32). Is formed with an inclined surface (32b) that is brought into contact with the pressing rod (15) provided on the lower surface of the holder (12) to move the divided mounting body (32) to the centrifugal side of the gasket (9). A locking wall (35) that can be locked is supported on the inner peripheral side of the gasket (9) so as to be able to move up and down, and the locking wall (35) is urged upward by an urging body (36). In addition, there is a form in which the holder (12) has a contact surface (35a) that can be contacted.
In the above-described embodiment, for example, as shown in FIG. 5, the presser rod (11) is lowered from the state where the presser tube (11) is located at the upper position (A) of the gasket unit (5) to lower the presser rod (11). (15) abuts on the inclined surface (32b), and the locking wall (35) is moved to the centrifugal side of the gasket (9) together with the split mounting body (32), and the locking wall (35) is locked. The gasket (9) is expanded, and the holder (12) abuts on the contact surface (35a) of the locking wall (35) to lower the locking wall (35), thereby engaging the gasket (9). The retaining wall (35) is unlocked and the gasket (9) is held by the holder (12).

As the gasket automatic assembly device according to the present embodiment, for example, as shown in FIG. 1, a plurality of the gasket assembly tools (3) are provided, and the gasket unit (3) is provided by the plurality of gasket assembly tools (3). An example is a mode 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 at the same time.

The reference numerals in parentheses of each configuration described in the above-described embodiment indicate the correspondence with the specific configurations described in the examples described later.

Hereinafter, the present invention will be specifically described with reference to the drawings. In this embodiment, as the "filter" according to the present invention, an oil filter that filters engine oil for vehicles will be exemplified.

(1) Configuration of Automatic Gasket Assembling Device As shown in FIG. 1, the gasket automatic assembling device 1 according to the present embodiment has a ring shape in an annular groove 8 formed in a bottom surface portion 2a of a tubular filter 2. The gasket 9 is assembled (see FIG. 4). In this automatic gasket assembling device 1, an assembling unit 4 having a plurality of (two in the figure) gasket assembling tools 3, a gasket unit 5 on which the gasket 9 is arranged, and a filter 2 with the bottom surface portion 2a facing upward are provided. It includes a filter unit 6 to be arranged.

As shown in FIG. 2, the gasket assembly tool 3 is arranged on a pressing cylinder 11 whose axis is arranged so as to face in the vertical direction, and on the inner peripheral side of the pressing cylinder 11, and on the outer peripheral surface thereof. A holder 12 (punch 12) capable of holding the gasket 9 and a guide 13 arranged on the outer peripheral side of the holding cylinder 11 are provided.

The holding cylinder 11 is formed in a tubular shape with the lower end side open. A piston rod 28a of a cylinder 28, which will be described later, is connected to the upper wall of the holding cylinder 11. Further, a guide hole 11a extending in the vertical direction is formed on the peripheral wall of the holding cylinder 11. A plurality of guide holes 11a are provided in the circumferential direction of the holding cylinder 11.

The holder 12 is suspended from the holding cylinder 11 so as to project downward from the lower end of the lower end portion 11b of the holding cylinder 11. The holder 12 is formed in a tubular shape with the upper end side open. Further, a pressing rod 15 extending downward is provided on the bottom wall of the holder 12. The presser rod 15 can be inserted into the inflow port 47 described later of the filter 2 (see FIG. 6). Further, a guide hole 12a extending in the vertical direction is formed on the peripheral wall of the holder 12. A plurality of guide holes 12a are provided in the circumferential direction of the holder 12. Further, the outer edge portion of the lower surface of the bottom wall of the holder 12 can be brought into contact with the bottom surface portion 2a of the filter 2 (specifically, the annular convex portion 44 on the inner peripheral side described later) (see FIG. 6A). ..

The guide 13 is suspended so as to be able to move up and down with respect to the holding cylinder 11 so as to project downward from the lower end of the lower end portion 11b of the holding cylinder 11. The guide 13 is formed in a tubular shape with the upper end side and the lower end side open. Further, a guide pin 17 projecting to the inner peripheral side is attached to the guide 13. A plurality of guide pins 17 are provided in the circumferential direction of the guide 13. Further, the outer edge portion of the lower end surface of the guide 13 can be brought into contact with the bottom surface portion 2a of the filter 2 (specifically, the annular convex portion 45 on the outer peripheral side described later) (see FIG. 6C).

The guide pin 17 is inserted into the guide hole 11a of the holding 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 holding cylinder 11 by the weight of the guide 13, and is locked to the upper end of the guide hole 12a of the holder 12 by the weight of the holder 12. Therefore, the holder 12 and the guide 13 are suspended from the holding cylinder 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 holding cylinder 11. Further, 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 holding cylinder 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 peripheral side of the gasket 9 held on the outer peripheral surface of the holder 12 diagonally downward toward the centripetal side (see FIG. 8A). The 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 whose diameter increases toward the bottom. Further, the inclination angle θ of the guide surface 13a with respect to the axial center of the holding cylinder 11 is set to about 30 degrees.

As shown in FIG. 1, the assembly unit 4 raises and lowers the presser cylinder 11 and the displacement drive unit 21 that displaces the presser cylinder 11 between the upper position A of the gasket unit 5 and the upper position B of the filter unit 6. It is provided with an elevating drive unit 22 for causing the displacement.

The displacement drive unit 21 includes a support column 24, a rotary arm 25 rotatably supported by the support column 24 about a vertical axis, and a motor 26 for rotating the rotary arm 25. By rotating the rotary arm 25 by the motor 26, the holding cylinder 11 is displaced between the upper positions A and B of the units 5 and 6, respectively.

The elevating drive unit 22 is composed of cylinders 28 provided at both ends of the rotary arm 25. A holding cylinder 11 is connected to the piston rod 28a of the cylinder 28. The presser cylinder 11 is moved up and down by the 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 arranged on the base body 31 along the circumferential direction. The split mounting body 32 has a mounting surface 32a on which the gasket 9 is mounted. Further, the split mounting body 32 is supported so as to be movable in the radial direction of the gasket 9 mounted on the mounting surface 32a with respect to the base body 31. Further, the split mounting body 32 is urged on the centripetal side of the gasket 9 by an urging body 33 such as a spring provided on the base body 31. Further, the split mounting body 32 is formed with an inclined surface 32b that the pressing rod 15 comes into contact with and moves the split mounting body 32 to the centrifugal side of the gasket 9.

In the divided mounting body 32, a locking wall 35 that can be locked on the inner peripheral side of the gasket 9 mounted on the mounting body 32a is supported so as to be able to move up and down. The locking wall 35 is urged upward by an urging body 36 such as a spring. Further, the locking wall 35 is formed with a contact surface 35a to which the outer edge portion 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 split 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 portion 2a facing upward. The filter 2 has a built-in filter element (not shown). Further, the annular groove 8 formed in the bottom surface portion 2a of the filter 2 includes an annular convex portion 44 (claw portion 44) on the inner peripheral side, an annular convex portion 45 (winding portion 45) on the outer peripheral side, and both convex portions 44. It is formed by a bottom portion 46 connecting the lower ends of the 45. The annular convex portion 44 on the inner peripheral side expands in diameter toward the tip end side and extends. Further, an oil inflow port 47 is formed on the bottom surface 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 to the inner peripheral side. The distance S between the inner peripheral end and the outer peripheral end of the gasket 9 is set to a value larger than the opening width W of the annular groove 8. Further, in the gasket 9, the bottom portion of the main body 51 is mounted on the mounting surface 32a of the split mounting body 32.

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

(2) Operation of Automatic Gasket Assembly Device Next, the operation of the automatic gasket assembly device 1 having the above configuration will be described. As shown in FIG. 1, the holding cylinder 11 of one gasket assembly tool 3 is located at the upper position A of the gasket unit 5, and the holding cylinder 11 of the other gasket assembly 3 is located at the upper position B of the filter unit 6. Each holding cylinder 11 is lowered at the same time from the state where it is located at. As a result, each gasket assembly tool 3 simultaneously performs the holding operation and the assembling operation of the gasket 9.

In the holding operation of the gasket 9, as shown in FIG. 5, the pressing rod 15 comes into contact with the inclined surface 32b due to the lowering of the pressing cylinder 11, and the locking wall 35 moves to the centrifugal side of the gasket 9 together with the split mounting body 32. (See FIG. 5 (a)). At this time, the gasket 9 is expanded by locking the locking wall 35 that moves to the centrifugal side to the inner peripheral side of the gasket 9. Further, as the holding cylinder 11 continues to descend, the outer edge portion of the lower surface of the bottom wall of the holder 12 abuts on the contact surface 35a of the locking wall 35 to lower the locking wall 35 (see FIG. 5B). .. By lowering the locking wall 35, the locking wall 35 is released from the locking wall 35, and the gasket 9 is held on the outer peripheral surface of the holder 12 (see FIG. 5C). After that, the holding cylinder 11 of the gasket assembly tool 3 holding the gasket 9 is raised toward the original position.

In the assembly operation of the gasket 9, as shown in FIGS. 6 and 7, the holder 12 hits the bottom surface portion 2a of the filter 2 (specifically, the annular convex portion 44 on the inner peripheral side) due to the lowering of the holding cylinder 11. It comes into contact with the presser cylinder 11 and is released (see FIG. 6A). Then, as the holding 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. 6B).

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

Next, due to the rotation of the rotary arm 25, the holding cylinder 11 of the gasket assembly tool 3 that does not hold the gasket 9 is positioned at the upper position A of the gasket unit 5, and the gasket assembly tool 3 that holds the gasket 9 is located. The presser cylinder 11 is located at the upper position B of the filter unit 6.
After that, the holding operation of the gasket 9, the assembling operation, and the displacement operation of the gasket assembling tool 3 are repeatedly performed.

(3) Effect of Example According to the gasket assembly tool 3 of this embodiment, the presser cylinder 11 is arranged so that its axis faces in the vertical direction, and the presser cylinder 11 is arranged on the inner peripheral side of the presser cylinder 11. A holder 12 capable of holding the gasket 9 on the outer peripheral surface thereof and a guide 13 arranged on the outer peripheral side of the holding cylinder 11 are provided, and each of the holder 12 and the guide 13 projects downward from the lower end of the holding cylinder 11. It is suspended from the holding cylinder 11 so as to be able to move 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, the holder 12 and the guide 13 hit the bottom surface 2a of the filter 2 by lowering the pressing cylinder 11 from the state where the filter 2 is arranged with the bottom surface 2a facing upward and the pressing cylinder 11 is located above the filter 2. By contacting and ascending with respect to the holding cylinder 11, the gasket 9 held by the holder 12 is pushed downward by the holding cylinder 11 in a state of being pressed by the guide surface 13 and assembled into the annular groove 8. As a result, when the gasket 9 is pushed downward by the pressing cylinder 11, the outer peripheral 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 does not easily escape to the outer peripheral side. Therefore, the gasket 9 can be easily assembled to the annular groove 8 of the filter 2.

In particular, according to the gasket assembly tool 3 of the present embodiment, when the gasket 9 is assembled to the annular groove 8 of the filter 2, the holder 12 comes into contact with the annular convex portion 44 (claw portion 44) of the filter 2 and is released. At the same time, since the guide 13 abuts on the annular convex portion 45 (winding portion 45) of the filter 2 and is released, an excessive load is not applied to the annular convex portions 44 and 45 of the filter 2, and the filter 2 is scratched. Defects such as sticking are unlikely to occur. Further, since the guide 13 provided on the outer peripheral side of the holding cylinder 11 is used, it is possible to assemble at high speed and low thrust.

Further, in this embodiment, the guide surface 13a is formed in a tapered surface shape whose diameter increases toward the lower end of the guide 13. As a result, 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 the present embodiment, the assembly unit 4 provided with the gasket assembly tool 3 described above, the gasket unit 5 on which the gasket 9 is arranged, and the filter 2 are arranged with the bottom surface portion 2a facing upward. The assembly unit 4 includes a displacement drive unit 21 that displaces the presser cylinder 11 between the upper position A of the gasket unit 5 and the upper position B of the filter unit 6, and the presser cylinder 11. A lifting drive unit 22 for raising and lowering is provided. Then, by lowering the pressing cylinder 11 from the state where the pressing cylinder 11 is located at the upper position A of the gasket unit 5, the gasket 9 arranged in the gasket unit 5 is held by the holder 12. Further, by lowering the pressing cylinder 11 from the state where the pressing cylinder 11 is located at the upper position B of the filter unit 6, the gasket 9 held by the holder 12 is placed in the annular groove 8 of the filter 2 arranged in the filter unit 6. It can be assembled. As a result, the gasket assembly tool 3 can easily hold the gasket 9 of the gasket unit 5, and the gasket 9 can be easily assembled to the annular groove 8 of the filter 2 of the filter unit 6.

In particular, according to the gasket automatic assembly device 1 of the present 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. 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 split mounting body 32, and the split mounting body 32 moves in the radial direction of the gasket 9 mounted on the mounting surface 32a. It is freely supported and urged on the centripetal side of the gasket 9 by the urging body 33, and the divided mounting body 32 is formed with an inclined surface 32b and the locking wall 35 can be raised and lowered freely. The locking wall 35 is urged upward by the urging body 36 and has a contact surface 35a. As a result, the pressing cylinder 11 is lowered from the state where the pressing cylinder 11 is located at the upper position A of the gasket unit 5, so that the pressing rod 15 comes into contact with the inclined surface 32b and the locking wall 35 is formed together with the split mounting body 35. The gasket 9 is moved to the centrifugal side, the gasket 9 is expanded by locking the locking wall 35, and the holder 12 abuts on the contact surface 35a of the locking wall 35 to lower the locking wall 35. As a result, the locking wall 35 is released from the gasket 9 and the gasket 9 is held by 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 examples, and various modifications can be made within the scope of the present invention according to the purpose and application. That is, in the above embodiment, the assembly unit 4 including the two gasket assembly tools 3 has been illustrated, but the present invention is not limited to this, and for example, as shown in FIG. 9, three or more gasket assembly tools 3 are provided. It may be an assembly unit 4, or an assembly unit 4 including one gasket assembly tool 3.

Further, in the above embodiment, the gasket unit 5 (see FIG. 5C) in which the gasket 9 is held by the holder 12 in a state of being separated from the guide surface 13a is illustrated, but the present invention is not limited to this, and for example, FIG. As shown, the gasket unit 5 may be used to hold the gasket 9 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 that are suspended from the holding cylinder 11 by its own weight are illustrated, but the present invention is not limited to this. The holder 12 and the guide 13 that can be hung may be used.

Further, in the above embodiment, the embodiment in which the gasket 9 is held and assembled by the displacement of the presser cylinder 11 is illustrated, but the present invention is not limited to this, and for example, the gasket 9 is separately mounted in place of or in addition to the displacement of the presser cylinder 11. The gasket 9 may be held and assembled by the displacement of the body 32 (that is, the gasket 9) or the container 41 (that is, the filter 2).

Further, in the above embodiment, the embodiment in which the holding operation and the assembling operation of the gasket 9 are performed at the same time is illustrated, but the present invention is not limited to this, and for example, the holding operation and the assembling operation of the gasket 9 are performed at different timings. It may be.

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

The above examples are for illustration purposes only and are not to be construed as limiting the invention. Although the present invention has been described with reference to typical embodiments, the language used in the description and illustration of the invention is understood to be descriptive and exemplary rather than restrictive. As described in detail here, modifications can be made within the scope of the appended claims without departing from the scope or spirit of the invention in that form. Although specific structures, materials and examples have been referred to herein in detail of the invention, it is not intended to limit the invention to the disclosures herein, but rather the invention is claimed in the accompanying 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 or modifications 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 tubular 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; Circular groove, 9; Gasket, 11 Presser cylinder, 12; holder, 13; guide, 13a; guide surface, 15; presser rod, 21; displacement drive unit, 22; elevating drive unit, 31; base body, 32; split mounting body, 32a; mounting Surface, 32b; inclined surface, 33; urging body, 35; locking wall, 35a; contact surface, 36; urging body, A; upper position of gasket unit, B; upper position of filter unit.

Claims (4)

A gasket assembly tool for assembling a ring-shaped gasket into an annular groove formed on the bottom surface of a tubular filter.
A holding cylinder whose axis is arranged so that it faces up and down,
A holder that is arranged on the inner peripheral side of the holding cylinder and can hold the gasket on the outer peripheral surface thereof.
A guide arranged on the outer peripheral side of the holding cylinder is provided.
Each of the holder and the guide is suspended from the holding cylinder so as to project downward from the lower end of the holding cylinder.
The guide is formed with a guide surface that presses the outer peripheral side of the gasket held by the holder.
By arranging the bottom surface of the filter upward and bringing the presser tube and the filter closer to each other than the state in which the presser tube is located above the filter, the holder and the guide are the same as the filter. By contacting the bottom surface and rising with respect to the holding cylinder, the gasket held by the holder is pushed downward by the holding cylinder while being pressed by the guide surface and assembled into the annular groove. A gasket assembly tool characterized by being able to be used. The gasket assembly tool according to claim 1, wherein the guide surface is formed in a tapered shape whose diameter increases toward the lower end of the guide. An automatic gasket assembly device that assembles a ring-shaped gasket into an annular groove formed on the bottom surface of a tubular filter.
An assembly unit including the gasket assembly according to claim 1 or 2.
The gasket unit on which the gasket is placed and
A filter unit in which the filter is arranged with the bottom surface facing upward is provided.
The assembly unit includes a displacement drive unit that displaces the presser cylinder between the upper position of the gasket unit and the upper position of the filter unit, and an elevating drive unit that raises and lowers the presser cylinder.
By lowering the presser cylinder from the state where the presser cylinder is located above the gasket unit, the gasket arranged in the gasket unit is held by the holder.
By lowering the presser cylinder from the state where the presser cylinder is located above the filter unit, the gasket held by the holder is assembled to the annular groove of the filter arranged in the filter unit. An automatic gasket assembly device characterized by. The gasket unit includes a base body and a divided mounting body having a mounting surface on which the gasket is mounted while being arranged on the base body in a plurality in the circumferential direction.
The split mounting body is movably supported in the radial direction of the gasket mounted on the mounting surface described above, and is urged to the centripetal side of the gasket by an urging body.
The split mounting body is formed with an inclined surface on which a pressing rod provided on the lower surface of the holder abuts to move the split mounting body to the distal side of the gasket, and the inner circumference of the gasket. A locking wall that can be locked to the side is supported so that it can be raised and lowered.
The locking wall is urged upward by an urging body and has a contact 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 together with the split mounting body centrifuges the gasket. Moved to the side, the gasket is expanded by locking the locking wall, and the holder abuts on the abutting surface of the locking wall to lower the locking wall, thereby causing the gasket. The automatic gasket assembling device according to claim 3, wherein the locking wall is released from the locket and the gasket is held in the holder.

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