JP3601161B2 - Method for manufacturing liquid filled damper - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for manufacturing a liquid-filled damper, and more specifically, a liquid in a form in which a lid is fixed in a state in which an opening of a container body is closed, and the liquid injected into the container body is sealed in the interior at the same time as the lid is fixed. The present invention relates to a method of manufacturing an enclosed damper.
[0002]
[Prior art]
For example, in a CD player or the like mounted on a vehicle, if the vibration of the vehicle body is transmitted to the CD player as it is, sound skipping occurs, so that the CD player is supported by vibration isolation via a liquid-filled damper to prevent this. Has been done.
As this liquid-filled damper, there is conventionally known a form comprising a container main body having an opening on one end side, a lid fixed in a state of closing the opening, and a liquid sealed inside.
[0003]
In manufacturing this type of liquid-filled damper, a step of injecting liquid into the container body and a step of fixing the lid in a state of closing the opening of the container body after the injection of the liquid are necessary. More generally, an air leak test process as a pre-stage process of the liquid injection process is performed, and a liquid amount inspection process and a lid setting process are performed as a post-stage process of the liquid injection process. A lid inclination inspection process for confirming whether or not it is set is performed.
[0004]
As a specific method, for example, the container main body is set on the rotary table sequentially at a predetermined pitch in conjunction with the rotation of the rotary table, and the liquid injection process is performed at each station set along the rotation trajectory of the rotary table. It is conceivable to carry out the above processes in parallel.
[0005]
By the way, the air leak test process, the liquid injection process, the liquid amount inspection process, the lid setting process, the lid tilt inspection process, the lid fixing process, and the like are not the same in time required for completion of the work. Each of the fixing steps takes a long time, for example, about 7 seconds, and takes a long time for each of the other steps. The time required for the liquid injection step and the lid fixing step determines the production efficiency of the liquid-filled damper. There was a problem.
That is, there is a problem that the production efficiency is poor because of the liquid injection process and the lid fixing process, and it is difficult to increase the production capacity of the liquid-filled damper.
[0006]
[Means for Solving the Problems]
The invention of the present application has been made against such a background.
Thus, the invention of the present application provides a liquid-filled damper comprising a container body having an opening on one end side, a lid fixed to the container body so as to close the opening, and a liquid sealed inside. In the manufacturing method of the liquid-filled damper, in which the liquid is first injected into the container main body and then the opening is closed, the container at a predetermined position along the rotation trajectory of the rotary table. In the main body setting station, a container main body setting step of sequentially placing and setting the container main body on the rotary table at a predetermined pitch with the rotation of the rotary table is performed, and in the liquid injection station on the downstream side in the rotation direction of the rotary table A liquid injection step of simultaneously injecting liquid into the plurality of container bodies by the liquid injection device; and further, the liquid injection station A lid setting step of setting a lid on the container body into which the liquid has been injected at a lid setting station on the downstream side of the lid, and a plurality of lids corresponding to the containers at the lid fixing station further downstream of the lid setting station A lid fixing step of simultaneously fixing to the main body is performed (Claim 1).
[0007]
Another invention of the present application is characterized in that, in claim 1, the lid fixing step is an ultrasonic welding step (invention 2).
[0008]
Still another invention of the present application is characterized in that, in claim 1 or 2, the liquid injection step is simultaneously performed on a plurality of adjacent container bodies by the same liquid injection device. 3).
[0009]
According to still another aspect of the present invention, in any one of the first, second, and third aspects, the lid fixing step is performed by using different lid fixing devices for at least a plurality of sets of container main bodies and lids separated by a plurality of pitches. It is characterized by carrying out simultaneously (Claim 4).
[0010]
According to still another aspect of the present invention, in any one of the first, second, third, and fourth aspects, the air leak for inspecting the container body for air leakage between the container body setting step and the liquid injection step. In the test step, a liquid amount inspection step for checking whether or not the amount of liquid injected between the liquid injection step and the lid setting step is an appropriate amount is between the lid setting step and the lid fixing step. Inclination inspection steps are included, and a plurality of the air leak test steps are simultaneously performed on the container body, and the liquid amount inspection step and the lid inclination inspection step are the container body or a combination of the container body and the lid. One or one set is implemented for each of the above (claim 5).
[0011]
[Operation and effect of the invention]
As described above, according to the first aspect of the present invention, the container main body or the container main body and the lid are placed on the rotary table and moved together with the rotation of the table. And a plurality of lid fixing steps to the container body after the liquid injection. According to the present invention, the liquid injection step and the lid fixing step, which take a long time compared to other steps, are performed. Since a plurality of processes are performed simultaneously, the required time per product in the liquid injection process and the lid fixing process can be equalized with other processes.
Therefore, according to the present invention, the time required for manufacturing the product (liquid-filled damper) can be shortened as a whole, and the production efficiency can be effectively increased.
[0012]
In the present invention, it is desirable to place and set the container body and the lid on the same circumference on the rotary table, and to perform various processes while moving on the circumference. In this way, an apparatus for performing each processing step can be easily configured.
[0013]
The manufacturing method according to claim 2 performs ultrasonic welding as the fixing step of the lid, and according to this method, even when ultrasonic welding that takes a long time for fixing the lid is performed, as a whole The time for manufacturing the liquid-filled damper can be shortened.
[0014]
According to a third aspect of the present invention, the liquid injecting step is performed simultaneously on a plurality of adjacent container bodies using the same liquid injecting device. It can be completed or less.
[0015]
On the other hand, regarding the lid fixing process, particularly the ultrasonic fixing process, it is difficult to perform a plurality of adjacent sets simultaneously in the same apparatus.
However, in the present invention, a plurality of sets of container main bodies and lids separated by a plurality of pitches are fixed to each other by a plurality of cover fixing devices, whereby the plurality of lids are attached to the corresponding container main bodies. Since it is possible to fix at the same time, it is possible to avoid the lid fixing step in the production of the liquid-filled damper being an obstacle to the improvement of the production efficiency, and the liquid-filled damper can be produced with high efficiency. ).
[0016]
The manufacturing method according to claim 5 includes an air leak test process between the container body setting process and the liquid injection process, a liquid quantity inspection process between the liquid injection process and the lid setting process, and a lid setting process and a lid. The lid inclination inspection process is performed between the fixing process and the air leak test process, and two pieces are applied to the container main body, and the liquid amount inspection process and the lid inclination inspection process are performed on the container main body or the container main body and the lid. According to this manufacturing method, it is possible to manufacture a good liquid-filled damper that does not leak from the container body, and to check whether there is liquid leakage from the container body, that is, air leakage. It is possible to equalize the time required for each product in the air leak test process, which requires a long time for inspection, with other processes.
[0017]
As a result, a series of processes necessary for manufacturing the liquid-filled damper can be continuously performed with a short tact time as the rotary table rotates, and the time required for each process can be balanced, and the liquid The production efficiency of the enclosed damper can be increased.
[0018]
【Example】
Next, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 10, 10 shows an example of a liquid-filled damper to which the manufacturing method of the present example is applied. The liquid-filled damper 10 has a container body 12 in a state in which the container body 12 and its one end side opening 13 are closed. 12 is composed of a lid 14 fixed to 12 and a liquid (high viscosity silicon liquid) 16 sealed inside.
[0019]
The container main body 12 includes a cylindrical peripheral wall 18, a cylindrical stirring shaft 20 with a bottom projecting into the liquid 16 at the center, and a thin pleated flexible connecting the peripheral wall 18 and the stirring shaft 20. Part 22.
The stirring shaft portion 20 has an insertion hole 24 in the center portion, and a shaft portion on the support body or the support body side when the CD player is supported in a vibration-proof manner is inserted therein.
[0020]
In this example, in the liquid-filled damper 10, the outer peripheral portions of the container body 12 and the lid 14 are each made of a hard resin material 26, and the other portions are made of a soft resin material or a rubber material. And in the part of the hard resin material 26, the container main body 12 and the lid | cover 14 are ultrasonic-welded and integrated.
[0021]
FIG. 1 shows a schematic plan configuration of an apparatus for carrying out a manufacturing method of a liquid-filled damper of this example. As shown in the figure, this apparatus has a rotary table 28, and along the periphery of the rotary table 28, a container body setting station S1, an air leak test station S2, a liquid injection station S3, and a liquid level inspection station S4. The lid setting station S5, the lid tilt inspection station S6, the lid fixing stations S7A and S7B, and the product take-out station S8 are set at predetermined intervals.
[0022]
The container body setting station S1 is provided with a supply set device 30 for the container body 12, the air leak test station S2 is provided with an air leak test device 32, the liquid injection station S3 is provided with a liquid injection device 34, and a liquid injection device 34 is provided downstream thereof. The quantity inspection device 36 and the lid setting device 38 are further provided with the lid inclination inspection device 40 at the lid inclination inspection station S6, the lid fixing stations S7A and S7B with separate lid fixing devices 42 and 44, respectively, and the container body setting station. Product take-out devices 46 are respectively installed at take-out stations S8 adjacent to S1.
[0023]
As shown in FIG. 2A, a rotary drive device 48 is connected to the rotary table 28, and the rotary table 28 is intermittently driven to rotate by the rotary drive device 48.
As shown in FIG. 5B, a plurality of holding portions 50 are provided on the same circumference at a predetermined pitch P (in this example, a pitch with a central angle of 15 °) on the outer peripheral portion of the rotary table 28. In the holding portion 50, the container main body 12 is held alone or the container main body 12 and the lid 14 are held therein (see FIG. 3C).
[0024]
As shown in FIG. 3, a fixed table 52 is provided at a fixed position above the rotary table 28, and the container main body 12 or the container main body 12 and the lid 14 are provided on the outer periphery of the fixed table 52. A plurality of detection sensors 54 for detecting (hereinafter referred to as a workpiece) are attached.
As shown in FIG. 1, two detection sensors 54 are set at positions corresponding to the stations S1, S2, S3, S5, and S8, and at positions corresponding to the stations S7A and S7B. Each one is set.
[0025]
That is, in this example, at stations S1, S2, S3, S5, and S8, two workpieces are set or processed simultaneously, and at that time, two workpieces actually exist on the rotary table 28. Each detection sensor 54 detects whether or not it is.
[0026]
Moreover, in the process of processing one by one, each detection sensor 54 detects whether or not there is one corresponding workpiece.
Here, each detection sensor 54 is composed of a reflective photoelectric sensor.
[0027]
FIG. 4 shows a schematic configuration of the air leak test apparatus 32. In the drawing, reference numeral 56 denotes a support column, and an upper nozzle 58 is provided on the support column 56 so as to be moved up and down by a cylinder 59. A lower nozzle 60 is provided on the lower side of the rotary table 28 so as to face the upper nozzle 58 and be movable up and down by a cylinder 62.
The lower nozzle 60 is provided with a pipe line 64 for injecting test air, and the upper nozzle 58 is provided with a pipe line 66 for guiding air to the pressure sensor.
[0028]
In the air leak test using the air leak test apparatus 32, the lower nozzle 60 and the upper nozzle 58 are set upward and downward, respectively, in a state where the container body 12 as a work is set in the holding portion 50 as shown in FIG. In this state, the test air is blown out from the lower nozzle 60, and the air from the upper nozzle 58 is guided to the pressure sensor through the pipe 66 to detect the presence or absence of air leak.
[0029]
FIG. 5 shows a schematic configuration of the liquid injection device 34. In the figure, reference numeral 68 denotes a machine frame. A lift cylinder 72 is attached to the machine frame 68, and the pair of dispensers 70 can be moved up and down along the guide rail 71 by the lift cylinder 72.
[0030]
A supply conduit 74 for supplying the liquid 16 to the dispenser 70 is connected to the pair of dispensers 70, and an injection needle 76 extends downward from each dispenser 70. A predetermined liquid 16 is injected into the container body 12 as a workpiece.
[0031]
Next, FIG. 6 shows a liquid level inspection device 36. As shown in FIG. 6, this device includes a support 78 and a laser displacement meter 80 at a predetermined height position supported by the support 78. The liquid 16 in which the liquid 16 is set by measuring the position of the liquid surface by irradiating the liquid 16 in the container body 12 with a laser beam from the translucent part of the laser displacement meter 80 and receiving the reflected light. Detect whether there is only an amount.
[0032]
FIG. 7 shows a lid tilt inspection apparatus 40. As shown in FIG. 7B, this apparatus includes a laser projector 82 and a laser receiver 84 facing the laser projector 82 with the holding unit 50 in between. Contains.
Here, the laser projector 82 is held at a predetermined height position by a column 86, and the laser receiver 84 is attached to the fixed table 52.
[0033]
In this apparatus, a laser band 88 emitted from a laser projector 82 is blocked by the container body 12 and the lid 14 as a work held by a holding part 50, and is projected and received by a laser receiver 84. And the presence or absence of the inclination of the lid | cover 14 is test | inspected by measuring the projection amount of this laser band 88 (refer FIG. 7 (A)).
[0034]
Next, FIG. 8 shows a schematic configuration of the lid fixing device 42 (44).
In the drawing, reference numeral 90 denotes a machine frame, and an elevating cylinder 92 is attached to the upper part of the machine frame 90, and the ultrasonic oscillation unit 94 can be moved up and down along the guide rail 96 by the elevating cylinder 92.
The ultrasonic oscillator 94 is provided with a horn 98 for causing ultrasonic vibrations to face downward.
[0035]
A push-up pin 100 is provided on the lower side of the rotary table 28 so as to face the horn 98. The push-up pin 100 can be moved up and down by a cylinder 102 attached to the machine frame 90.
[0036]
The lid fixing device 42 (44) lowers the horn 98 as the ultrasonic vibration action unit in a state where the container body 12 and the lid 14 as the work are set in the holding unit 50, and the lid 14 and the container body 12 are moved. The lid 14 and the container main body 12, specifically, the portions made of the hard resin material on the outer peripheral portion thereof are welded by contacting the contact portion and applying ultrasonic waves in this state.
[0037]
FIG. 9 shows a schematic configuration of the main part of the product take-out device 46.
In the figure, reference numeral 104 denotes a pair of suction portions communicating with the negative pressure supply pipe 106. The suction portions 104 are provided downward and can be moved up and down by a lifting cylinder 108.
[0038]
In this apparatus, the suction unit 104 is lowered by the lift cylinder 108 from above the container main body 12 and the lid 14 as works in the holding unit 50. Then, in a state where the suction part 104 is in contact with the upper surface of the work, the work is sucked by applying a negative pressure to the suction part 104 from the negative pressure supply pipe 106. Then, the work is taken out from the holding portion 50 by raising the elevating cylinder 108.
The elevating cylinder 108 can be traversed along the guide rail 114 by a traversing cylinder 112 connected to the apparatus main body 110.
[0039]
Next, a method for manufacturing the liquid filled damper 10 using the apparatus of this example will be specifically described.
First, in the container main body setting station S1, the supply setting device 30 sets two container main bodies 12 simultaneously with respect to two adjacent holding portions 50 of the rotary table 28. The container main bodies 12 set in the two holding portions 50 are detected by the detection sensors 54 attached to the fixed table 52, respectively.
[0040]
Thereafter, the rotary table 28 is rotated by one pitch in the counterclockwise direction in FIG. 1, and the supply set device 30 sets two container main bodies 12 by two at the container main body setting station S1 each time it rotates by two pitches.
[0041]
Next, the container body 12 set in the holding unit 50 at the container body setting station S1 is sent to the air leak test station S2 by the rotation of the rotary table 28.
In the air leak test station S <b> 2, the air leak test apparatus 32 performs an air leak test simultaneously on the two container main bodies 12 as works set on the two adjacent holding parts 50.
[0042]
In the air leak test station S2, first, two sets of detection sensors 54 attached to the fixed table 52 detect whether or not the container main body 12 is set in each of the two adjacent holding portions 50 (FIG. 1). Here, if the detection sensor 54 does not detect, the air leak test is not performed.
[0043]
When the container main body 12 is detected as a workpiece, the two sets of the lower nozzle 60 and the upper nozzle 58 are moved up and down, respectively.
Next, the test air is blown out from the lower nozzle 60 toward the container body 12, and the air from the upper nozzle 58 on the opposite side is guided to the pressure sensor via the pipe 66 while holding the container body 12. The presence or absence of an air leak in the container body 12 is detected.
[0044]
Thereafter, a negative pressure is applied to the lower nozzle 60, and after the deformation of the container body 12 due to the test air is corrected, the upper nozzle 58 and the lower nozzle 60 first move up and down (see FIG. 4).
In the air leak test station S2, the air leak test device 32 operates every time the turntable 28 rotates by two pitches.
[0045]
The container body 12 that has completed the air leak test is then sent to the liquid injection station S3.
In the liquid injection station S3, the liquid injection device 34 injects the liquid (high viscosity silicon liquid) 16 into the container body 12 that has passed the air leak test. In this station S3, the liquid 16 is simultaneously injected into the two container bodies 12 (see FIG. 1).
[0046]
Also in this liquid injection station S3, the detection sensor 54 attached to the fixed table 52 detects whether or not a workpiece is set in the two adjacent holding portions 50, respectively.
Then, after detecting the workpiece, the pair of dripping prevention shutters are opened, the pair of dispensers 70 are lowered by the elevating cylinders 72, and the injection needles 76 extending downward from the dispenser 70 are respectively moved toward the inside of the container main body 12 in a predetermined direction. Lower to height (see FIG. 5).
[0047]
In this state, the liquid 16 is sent from the pump (not shown) to the dispenser 70 through the supply pipe 74, and a predetermined amount of liquid 16 is injected from the dispenser 70 into the container body 12 through the injection needle 76.
In order to prevent the liquid 16 from jumping out from the inside of the container main body 12 during the injection of the liquid 16, the injection speed of the liquid 16 by the dispenser 70 is optimized.
[0048]
When the injection of the liquid 16 into each container main body 12 is completed, the injection needle 76 is lifted together with the pair of dispensers 70 by the elevating cylinder 72, the pair of liquid dripping prevention shutters are closed, and the liquid drops from the injection needle 76 into the container main body 12. The inflow of the liquid 16 is prevented.
Also in the liquid injection station S3, the liquid injection device 34 operates every time the rotary table 28 rotates by two pitches, similarly to the stations S1 and S2.
[0049]
Next, the container body 12 filled with the liquid 16 is sent to the liquid quantity inspection station S4.
This station S4 is provided with one liquid quantity inspection device 36, and as shown in FIG. 6, a laser beam is injected into the container body 12 from the laser displacement meter 80 of the liquid quantity inspection apparatus 36. The position of the liquid surface is measured by receiving the reflected light and inspecting whether or not the liquid 16 has a set liquid amount.
In this station S4, the liquid quantity inspection device 36 operates every time the turntable 28 rotates by one pitch.
[0050]
The workpiece that has been subjected to the liquid amount inspection is sent to the lid setting station S5.
Also in this station S5, the detection sensor 54 attached to the fixed table 52 detects whether or not a workpiece is set on two adjacent holding portions 50 in the station S5 (see FIG. 1).
[0051]
When the workpiece is detected, the lid setting device 38 sets the corresponding lids 14 from above on the two container bodies 12 into which the liquid 16 has been injected.
In the lid setting station S5, the lid setting device 38 operates every time the rotary table 28 is rotated by two pitches, similarly to the stations S1, S2, and S3.
[0052]
Next, after the lid 14 is set, the work is sent to the lid inclination inspection station S6. The station S6 is provided with a set of lid inclination inspection devices 40. In the lid tilt inspection apparatus 40, as shown in FIG. 7, a laser band 88 emitted from a laser projector 82 is partially blocked by the midway holding unit 50, the container body 12 and the lid 14, and projected onto the laser receiver 84. Is received. This projection amount is measured to inspect whether or not the lid 14 is tilted.
And the work which finished the lid inclination inspection is sent to lid adhering station S7A or S7B.
[0053]
These lid fixing stations S7A and S7B are provided at positions separated from each other by 3 pitches in this example.
In each of the lid fixing stations S7A and S7B, the detection sensor 54 attached to the fixed table 52 is directed to one holding unit 50 in each of the stations S7A and S7B, and a workpiece is set in the holding unit 50. Each of them is detected (see FIG. 1).
[0054]
Lid fixing devices 42 and 44 are provided in the respective lid fixing stations S7A and S7B.
Then, ultrasonic vibrations are applied to the workpieces that have entered the lid fixing devices 42 and 44, so that the portions of the hard resin material 26 of the container body 12 and the lid 14 are welded together and integrated. .
[0055]
In each of the lid fixing stations S7A and S7B, as in the stations S1, S2, S3, and S5, the lid fixing devices 42 and 44 operate simultaneously every time the rotary table 28 rotates by two pitches. In addition, since the stations S7A and S7B are separated by an odd number of pitches (three pitches in this example), the fixing work of the lid 14 is performed on different workpieces.
[0056]
Next, the work on which the lid 14 is fixed is sent to the product take-out station S8.
Also in this station S8, the detection sensor 54 detects the presence or absence of a workpiece in the two holding units 50 of the product take-out unit.
[0057]
The detected workpiece is sucked by the suction unit 104 of the product take-out device 46 and taken out from the holding unit 50.
At this time, the product take-out device 46 is provided with two suction portions 104, and two different works (products) can be taken out at the same time.
And the taken-out product is carried on the conveyor which is not shown in figure by the traverse cylinder 112, and is carried out as a product.
[0058]
Also, workpieces that have failed at the air leak station S2, the liquid level inspection station S4, the lid inclination inspection station S6 and the lid fixing stations S7A, S7B, etc. are transported to a place different from the conveyor at the take-out station S8. , And are classified as good products.
In this take-out station S8, the product take-out device 46 operates every time the turntable 28 rotates by two pitches, as in the stations S1, S2, S3, S5, S7A and S7B.
[0059]
As described above, in this example, the container main body 12 or the container main body 12 and the lid 14 are placed on the rotary table 28 as a work and moved together with the rotation of the rotary table 28, and the set liquid injection station S3 and the lid are fixed. In the stations S7A and S7B, two steps of fixing the lid 14 to the container body 12 after the injection of the liquid 16 into the container body 12 and the injection of the liquid 16 are performed at the same time. Compared with the other steps, the time required for one product of the liquid 16 injection step and the lid fixing step is equal to that of the other steps in order to simultaneously perform two steps of liquid 16 injection and lid fixing step, which take a long time to work. Can be
[0060]
Therefore, according to the present embodiment, the time required for manufacturing the liquid-filled damper 10 can be shortened as a whole, and the production efficiency can be effectively increased.
[0061]
Further, in this example, each processing step is performed by placing and setting the container body 12 on the same circumference on the rotary table 28 and performing various processes while moving on the circumference. The apparatus can be configured easily.
[0062]
In the manufacturing method of this example, ultrasonic welding that requires a long time is applied in the lid fixing step. However, by simultaneously fixing two pieces in the lid fixing step, the time required for manufacturing the liquid-filled damper 10 as a whole. Can be shortened.
[0063]
In this example, the liquid 16 injection step is simultaneously performed on two adjacent container bodies 12 using the same liquid injection device 34, so that only one liquid injection device 34 is required. .
[0064]
Although the embodiment of the present invention has been described in detail above, this is merely an example.
For example, in the present embodiment, each processing is performed in increments of two by setting the workpiece feed pitch to 15 °. However, it is possible to process three or more in parallel by changing this processing. In addition, this invention can be comprised in the form which added the various change in the range which does not deviate from the main point.
[Brief description of the drawings]
FIG. 1 is a diagram showing a schematic plan configuration of an apparatus for carrying out a method for producing a liquid-filled damper according to an embodiment of the present invention.
FIG. 2 is a schematic configuration diagram of a rotary drive device including the rotary table in FIG.
3 is an enlarged view of a main part of a holding unit and a workpiece detection sensor in FIG. 2;
4 is a diagram showing a schematic configuration of an air leak test apparatus in FIG. 1. FIG.
FIG. 5 is a diagram showing a schematic configuration of the liquid injection apparatus in FIG. 1;
6 is a diagram showing a schematic configuration of the liquid amount inspection apparatus in FIG. 1. FIG.
7 is a diagram showing a schematic configuration of the lid tilt inspection apparatus in FIG. 1. FIG.
8 is a diagram showing a schematic configuration of the lid fixing device in FIG. 1. FIG.
9 is a diagram showing a schematic configuration of a main part of the product take-out device in FIG.
FIG. 10 is a diagram showing an example of a liquid-filled damper that is an application target of the liquid-filled damper manufacturing method according to the present invention.
[Explanation of symbols]
10 Liquid-filled damper
12 Container body
13 opening
14 Lid
16 liquid
28 Rotary table
34 Liquid injection device
42,44 Lid fixing device
P pitch
S1 Container body set station
S3 Liquid injection station
S5 Lid set station
S7A, S7B Lid fixing station

Claims (5)

When manufacturing a liquid-filled damper comprising a container body having an opening on one end side, a lid fixed in a state of closing the opening with respect to the container body, and a liquid sealed inside, the container body first In the method of manufacturing a liquid-filled damper in which the liquid is injected into the interior and then the opening is closed, the container body is placed in a container body set station at a predetermined position along the rotation trajectory of the rotary table. A container body setting step of sequentially placing and setting on the rotary table at a predetermined pitch with the rotation of the rotary table is performed, and a plurality of the container main bodies are formed by a liquid injection device at a liquid injection station downstream in the rotation direction of the rotary table. A liquid injection step of simultaneously injecting liquid into the liquid injection station, and a lid set downstream of the liquid injection station. A lid setting step of setting a lid on the container body into which the liquid has been injected, and fixing a plurality of lids to the corresponding container body at the lid fixing station further downstream of the lid setting station. A method for manufacturing a liquid-filled damper, comprising performing a fixing step of a lid. The method for manufacturing a liquid-filled damper according to claim 1, wherein the lid fixing step is an ultrasonic welding step. 3. The method for manufacturing a liquid-filled damper according to claim 1, wherein the liquid injection step is performed simultaneously on the plurality of adjacent container bodies by the same liquid injection device. 4. The lid fixing step according to claim 1, wherein the lid fixing step is simultaneously performed on a plurality of sets of container main bodies and lids separated by a plurality of pitches by different lid fixing devices. A method for manufacturing a liquid-filled damper. 5. The liquid injection step according to claim 1, wherein an air leak test step for inspecting the container main body for air leakage between the container main body setting step and the liquid injection step is performed. A liquid amount inspection step for checking whether or not the amount of liquid injected between the lid setting step and the lid setting step is an appropriate amount, and a lid inclination inspection step is included between the lid setting step and the lid fixing step, respectively. In addition, a plurality of the air leak test processes are simultaneously performed on the container main body, and the liquid amount inspection process and the lid inclination inspection process are performed on one or one set on the container main body or the container main body / lid combination. A method for producing a liquid-filled damper, characterized in that it is carried out one by one.

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