JP4511754B2 - Sealant sealing device for tire tube with sealant - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tire tube with a sealant provided with an air chamber filled with air inside a tire tube and a sealant chamber filled with a sealant, and more particularly to a sealing agent sealing device in the sealant chamber. .
[0002]
[Prior art]
Japanese Patent Application Laid-Open No. 58-74342 discloses a tire tube containing a sealing agent in which a sealing agent is filled inside the tire tube and the tire tube is stabbed by a nail or the like to self-seal with the sealing agent to delay air leakage. This is known from Japanese Patent Laid-Open No. 9-300481.
[0003]
In JP-A-58-74342, a capsule containing a sealant is inserted into a tire tube before vulcanization molding, and the capsule is destroyed by external force after vulcanization molding. A sealant is dispersed in the tube. In addition, what is described in Japanese Patent Laid-Open No. 9-300481 is that a sealant is filled from a sealant filling hole formed in a tire tube in a state where air is filled in an air chamber of the tire tube and air is pushed out from the sealant chamber. The chamber is filled with a sealant.
[0004]
[Problems to be solved by the invention]
However, the former sealing agent filling method may not only damage the tire tube when an external force is applied to break the capsule, but also the sealing agent may clog the air valve provided on the tire tube. was there. Further, the latter sealing agent filling method has a problem that not only it is difficult to completely exhaust the air in the sealing agent chamber but also it takes time to exhaust the air from the sealing agent chamber.
[0005]
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to efficiently perform a work for sealing a sealant in a sealant chamber of a tire tube in a short time.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the invention described in claim 1, a tire tube with a sealant for sealing the sealant in a state where air is not mixed in a sealant chamber partitioned inside the tire tube. An index table that intermittently rotates by a predetermined angle, a tire tube support provided on the outer periphery of the index table at each predetermined angle, and a tire tube supported by each tire tube support And a plurality of work stations provided at positions facing the plurality of tire tube support portions of the index table when the index table stops. The station is equipped with sealant and air filled from the sealant filling hole inside the sealant chamber. A work set station that supports the existing tire tube on the tire tube support part and clamps it with a clamp member, a buff station that polishes the periphery of the sealant filling hole with a buff, and a state where the clamp by the clamp member is temporarily released A vacuum station for evacuating the air present in the sealant chamber, a degreasing station for degreasing the periphery of the sealant filling hole, a primer application station for applying a primer around the sealant fill hole, and a sealant filling hole Each tire tube while intermittently rotating the index table, including a mold station for molding a thermosetting resin so as to cover and an ironing station for heat-curing the molded thermosetting resin to close the sealing agent filling hole The support part is attached to the work set station. A sealing agent sealing device for a tire tube containing a sealing agent is proposed, which is sequentially stopped at a position facing a buffing station, a vacuum station, a degreasing station, a primer coating station, a mold station, and an ironing station. .
[0007]
According to the above configuration, the plurality of tire tube support portions that support the plurality of tire tubes and clamp with the clamp member are provided on the outer periphery of the index table that intermittently rotates by a predetermined angle, and the plurality of tire tube supports of the stopped index table are provided. Since the work set station, buff station, vacuum station, degreasing station, primer application station, mold station, and iron station are provided at the position facing the part, the tire tube support part at the work set station has a tire By rotating the index table intermittently while supporting the tube and clamping the periphery of the sealant filling hole, the periphery of the sealant filling hole is polished at the buff station, and the air present in the sealant chamber at the vacuum station Vacuum is applied, the periphery of the sealant filling hole is degreased at the degreasing station, the primer is applied around the sealant filling hole at the primer application station, a thermosetting resin is molded into the sealant filling hole at the molding station, and the iron is molded. The thermosetting resin can be heated and cured at the station to close the sealing agent filling hole, and the above-described series of operations can be completed in a short time by sequentially performing the rotation of the index table.
[0008]
In addition, buffing is performed with the periphery of the sealant filling hole clamped, so it is possible not only to prevent the tire tube from being damaged by the buffing load, but also to remove the oil and dirt and adhere the thermosetting resin. The strength can be increased, and the air in the sealant chamber is exhausted by evacuation, preventing air from entering the sealant and deteriorating the sealing performance, and degreasing around the sealant filling hole. Since the sealing agent filling hole is closed with the thermosetting resin after the treatment and the primer coating treatment are performed, the adhesion of the thermosetting resin can be enhanced to ensure the sealing performance. Furthermore, since each process of degreasing, primer coating, molding and ironing is performed with the periphery of the sealing agent filling hole clamped, air can be prevented from entering the sealing agent chamber again to ensure the performance of the sealing agent. Can do.
[0009]
According to the invention described in claim 2, in addition to the structure of claim 1, each tire tube support portion can support a plurality of tire tubes. A sealing agent sealing device is proposed.
[0010]
According to the above configuration, since the plurality of tire tubes are supported by each tire tube support portion, it is possible to process the plurality of tire tubes at the same time, and work efficiency is improved.
[0011]
According to the invention described in claim 3, in addition to the configuration of claim 2, each work station can simultaneously process a plurality of tire tubes supported by each tire tube support portion. A sealing agent sealing device for a tire tube containing a sealing agent is proposed.
[0012]
According to the above configuration, since the plurality of tire tubes supported by the respective tire tube support portions are simultaneously processed at each work station, a plurality of operations can be advanced simultaneously to improve work efficiency.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described based on examples of the present invention shown in the accompanying drawings.
[0014]
1 to 19 show an embodiment of the present invention. FIG. 1 is a cross-sectional view of a wheel equipped with a tube-filled tire, FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1, and FIG. FIG. 4 is a second partial view for explaining the sealing agent filling step, FIG. 5 is a perspective view of the sealing agent filling station, and FIG. 6 is an overall plan view of the sealing agent filling device. 7 is an overall plan view of the index table, FIG. 8 is an overall plan view of the tool base, FIG. 9 is a sectional view taken along line 9-9 of FIG. 6, and FIG. 10 is an enlarged view of the main part of FIG. 11 is a view in the direction of arrow 11 in FIG. 10, FIG. 12 is a view in direction of arrow 12 in FIG. 8, FIG. 13 is a view in direction of arrow 13 in FIG. 12, and FIG. 15 is a view in the direction of arrow 15 in FIG. 8, FIG. 16 is a view in the direction of arrow 16 in FIG. 15, FIG. 17 is a view in the direction of arrow 17 in FIG. 18 direction arrow view of FIG. 8, FIG. 19 is an enlarged view of FIG.
[0015]
As shown in FIGS. 1 and 2, a rim R of a motorcycle wheel is fitted with a tube-filled tire T including a tire body 1 and a tire tube 2 housed therein. The tire tube 2 includes an air chamber peripheral wall 3i positioned on the inner side in the radial direction of the tire T and a sealant chamber peripheral wall 3o positioned on the outer side in the radial direction, and the peripheral wall 3 having an annular cross section. The connecting portion between the air chamber peripheral wall 3i and the sealant chamber peripheral wall 3o of the peripheral wall 3 is connected to each other by a partition wall 4 formed integrally therewith. The air chamber 5 having a substantially circular cross section defined between the air chamber peripheral wall 3i and the partition wall 4 is filled with air, and has a substantially arc-shaped cross section defined between the sealant chamber peripheral wall 3o and the partition wall 4. The sealant chamber 6 is filled with a gel sealant 7.
[0016]
The rim R has an annular rim main body portion 11 extending in the circumferential direction of the tire T, and a pair of flange portions 12 and 12 that extend radially outward from both ends in the width direction of the rim main body portion 11 and hold the inner periphery of the tire main body 1. With. An air valve 13 that fills the air chamber 5 formed in the tire tube 2 with air is supported by penetrating an air valve mounting portion 14 formed at one place in the circumferential direction of the rim main body portion 11.
[0017]
Thus, since the sealant chamber 6 of the tire tube 2 is held in a shape along the inside of the tread 15 by the air pressure of the air chamber 5, the tire tube 2 is pierced from the radial direction or the side by a nail or the like. However, the sealing agent 7 immediately fills and repairs the stab wound, and delays the leakage of air from the air chamber 5. Further, since the sealant 7 is held in the sealant chamber 6 and does not flow out to the air chamber 5 side, the air valve 13 and the pressure gauge applied thereto are not clogged.
[0018]
Before describing the structure of the sealing agent sealing device, an outline of the process of sealing the sealing agent 7 in the sealing agent chamber 6 of the tire tube 2 will be described with reference to FIGS. 3 and 4.
[0019]
First, the inner peripheral surface (air chamber peripheral wall 3i) of the tire tube 2 before being filled with the sealant 7 is supported on the upper surface of the horizontally disposed tire tube support member 19 and heated to about 400 ° C. by an electric heater. The nail 22 is lowered from above toward the tire tube support member 19 to form the sealant filling hole 2a on the outer peripheral surface (the sealant chamber peripheral wall 3o) of the tire tube 2. By using the hot nail 22 thus heated, the sealant filling hole 2a can be easily and reliably formed in the rubber tire tube 2 (see FIG. 3A). After retracting the hot nail 22 upward, a sealant injection hose 23 is inserted from the sealant filling hole 2a of the tire tube 2 supported by the tire tube support member 20 to the bottom of the sealant chamber 6, and this sealant injection hose. The sealant 7 is injected into the bottom of the sealant chamber 6 from the sealant filling hole 2 a through 23. When the sealing agent injection hose 23 is pulled out, the sealing agent 7 stays at the bottom of the sealing agent chamber 6 due to gravity, and air remains in the upper portion of the sealing agent chamber 6 (see FIG. 3B).
[0020]
FIG. 5 shows a sealing agent filling station S0. The sealant filling station S0 can fill the four tire tubes 2 with the sealant 7, and includes a sealant tank 32 that stores the sealant 7, a sealant pump 33 that supplies the sealant 7, and a seal. The sealant injection hose 23 for supplying the agent pump 33 to the tire tube 2 and an operation panel 34 operated by an operator are provided. The tire tube support member 20 that supports the tire tube 2 is connected to an electronic balance 35, and the filling amount of the sealant 7 can be confirmed based on the weight of the tire tube 2 measured by the electronic balance 35. Prior to filling the sealant 7, if air is supplied from the air valve 13 to the air chamber 5, the air in the sealant chamber 6 is pushed out from the sealant filling hole 2a. However, the amount of air remaining in the sealant chamber 6 can be minimized by supplying the sealant 7 into the sealant chamber 6.
[0021]
Subsequently, the tire tube 2 is placed on the partially conical tire tube support member 21, and the clamp member 25 having the partially conical opening 25a is lowered from above to clamp around the sealant filling hole 2a ( (See FIG. 3C). Subsequently, the periphery of the sealant filling hole 2a surrounded by the clamp member 25 is polished with the buff 26 while the clamp by the clamp member 25 is maintained, so that oil and dirt attached to the periphery of the sealant filling hole 2a are removed. It is removed (see FIG. 3D). At this time, a load is applied to the periphery of the sealant filling hole 2 a by the rotating buff 26, but the tire tube 2 is deformed by the frictional force received from the buff 26 because the portion is clamped immovably by the clamp member 25. Damage can be reliably prevented. Subsequently, after the vacuum pad 24 connected to a negative pressure source (not shown) is lowered and adsorbed around the sealant filling hole 2a, the clamp by the clamp member 25 is temporarily released to enter the sealant chamber 6. The remaining air is sucked (see FIG. 3E). After the air in the sealant chamber 6 is sucked, the tire tube 2 is clamped again by the clamp member 25 and the vacuum pad 24 is retracted. Thereby, there is no possibility that air may enter the sealant chamber 6 again from the sealant filling hole 2a.
[0022]
Subsequently, the periphery of the sealant filling hole 2a is wiped off with a solvent such as xylene or toluene by the degreasing device 27 (see FIG. 4 (F)), and further, the primer coating device 28 is disposed around the sealant filling hole 2a. After the primer is applied (see FIG. 4G), the acrylic or urethane thermosetting resin 30 is supplied from the sealer supply nozzle 29 to the sealant filling hole 2a (see FIG. 4H). Then, after retracting the sealer supply nozzle 29 upward, the thermosetting resin 30 is heated for 15 seconds to 30 seconds with an iron 31 heated to approximately 180 ° C. to form a predetermined shape (see FIG. 4I). ). Thus, when the thermosetting resin 30 is cured, the sealant filling hole 2a is closed, and the tire tube 2 is completed (see FIG. 4J). During the sealing step of the sealing agent filling hole 2a, the clamp member 25 is clamped so as to surround the sealing agent filling hole 2a.
[0023]
Thus, after buffing, degreasing and primer coating around the sealing agent filling hole 2a, the thermosetting resin 30 is molded to close the sealing agent filling hole 2a. It is possible to avoid a decrease in the adhesion strength of the thermosetting resin 30 due to the dirt. In the tire tube 2 immediately after completion, the sealant 7 stays at the bottom of the sealant chamber 6. However, when the tire tube 2 is mounted on the tire body 1 and actually travels, the sealant 7 is caused by centrifugal force. It diffuses uniformly inside the sealant chamber 6.
[0024]
Next, a specific structure of the sealing agent enclosure for executing the steps of FIGS. 3C to 4J will be described with reference to FIGS.
[0025]
6 is an index table 42 provided with six tire tube support portions 41 at 60 ° intervals, and in the state where four tire tubes 2 are supported on each tire tube support portion 41, It rotates intermittently around the axis L at 60 ° intervals. A portion indicated by a solid line in FIG. 6 is a tool base 43 fixed in a non-rotatable manner, and is provided with six work stations S1 to S6 at intervals of 60 ° on the outer periphery thereof. The six work stations S1 to S6 include a work set station S1 for transferring the four tire tubes 2 filled with the sealant 7 at the sealant filling station S0 (see FIG. 5) to the index table 42, and a tire tube. A buffing / vacuum station S2 that vacuum-sucks the air in the sealant chamber 6 after buffing the periphery of the sealant filling hole 2a of the tire tube 2 supported by the support portion 41, and the oil content around the sealant filling hole 2a A degreasing station S3 for removing water, a primer coating station S4 for improving the adhesion of the thermosetting resin by applying a primer around the sealing agent filling hole 2a, and molding the thermosetting resin in the sealing agent filling hole 2a. The mold station S5 and the molded thermosetting resin are cured by heating to close the sealing agent filling hole 2a. Consisting of iron station S6 Metropolitan that.
[0026]
As shown in FIGS. 7 and 9 to 11, the index table 42 rotatably supported via a bearing 47 on an intermediate portion of a column 46 erected on a floor 44 via a base 45 is provided at the center. An annular rotating plate 48 positioned, twelve arm members 49 extending radially from the rotating plate 48, and the tire tube support portion 41 connecting the two adjacent arm members 49 are provided. The tire tube support portion 41 includes a connecting member 50 extending in the tangential direction of the index table 42, four substrates 51 extending parallel to the outer side in the radial direction from the connecting member 50, and the tire tube support provided at the tip of the substrate 51. The member 21 includes a cylinder 52 that is vertically supported on the lower surface of the substrate 51, and the clamp member 25 that is fixed to the piston rod 52 a of the cylinder 52 that protrudes from the upper surface of the substrate 51.
[0027]
A support plate 54 is fixed to the tip of a stay 53 that is fixed to the support 46 in the radial direction, and a positioning cylinder 55 of the index table 42 is fixed to the support plate 54 in the vertical direction. A positioning pin 57 is slidably supported on a guide member 56 fixed to the support plate 54, and the lower end of the positioning pin 57 is coupled to the upper end of the piston rod 55 a of the cylinder 55. A positioning block 59 is fixed to a connecting plate 58 that connects the lower surfaces of the pair of arm members 49, and a pin hole 59 a into which the upper end of the positioning pin 57 can be fitted is formed in the positioning block 59.
[0028]
A motor support plate 61 is fixed to a stay 60 fixed in a radial direction to the support 46 so that the position of the motor support plate 61 can be adjusted. A drive sprocket 63 is fixed to an output shaft 62 a of a motor 62 supported by the motor support plate 61. The driving sprocket 63 and the driven sprocket 64 fixed to the rotating plate 48 are connected by an endless chain 65.
[0029]
Thus, when the motor 62 is driven, the index table 42 rotates through the drive sprocket 63, the endless chain 65, and the driven sprocket 64. When the six tire tube support portions 41 stop at positions corresponding to the corresponding work stations S1 to S6, the cylinder 55 extends and the positioning pins 57 are fitted into the pin holes 59a of the corresponding positioning blocks 59, and the index table. 42 is non-rotatably positioned.
[0030]
As shown in FIG. 8, the tool base 43 fixed to the upper end of the support column 46 includes six arm members 71 extending radially and a connecting member 72 that connects the distal ends of the arm members 71 in a hexagonal shape. Six work stations S1 to S6 are supported on each of the six connecting members 72.
[0031]
First, the structure of the work set station S1 will be described based on FIG. 8 and FIG.
[0032]
The work set station S1 includes a laser pointer support member 74 supported by a connecting member 72 via an L-shaped stay 73. The four laser pointers 75 provided on the laser pointer support member 74 are respectively tires. The center of the tube support member 21 is directed.
[0033]
Accordingly, when the worker attaches four tire tubes 2 to the tire tube support member 21 of the index table 42 at the work set station S1, the tire tube 2 is sealed at the position irradiated with the laser beam from the laser pointer 75. By positioning the agent filling hole 2a and driving the cylinder 52 to contract in this state, the periphery of the sealant filling hole 2a of the tire tube 2 is accurately clamped between the clamp member 25 and the tire tube support member 21. (See FIG. 3C).
[0034]
Next, the structure of the buffing / vacuum station S2 will be described with reference to FIGS.
[0035]
A guide rail 77 is fixed to the upper surface of the support plate 76 fixed to the connecting member 72, and a slide plate 79 is fixed to a slider 78 that is slidably fitted to the guide rail 77. A pinion 81 is fixed to the lower end of an output shaft 80a extending downward from the motor 80 supported on the upper surface of the slide plate 79 through the slide plate 79, and fixed to the upper surface of the support plate 76 in parallel with the guide rail 77. The pinion 81 meshes with the rack 82. Accordingly, when the motor 80 is driven, the slide plate 79 reciprocates while the slider 78 is guided by the guide rail 77 by the reaction force received by the pinion 81 from the rack 82.
[0036]
Two guide rails 84 are fixed in a vertical direction on a support plate 83 fixed to the slide plate 79, and a slide plate 86 is slidably supported on the guide rail 84 via a slider 85. A stay 87 fixed to the support plate 83 and a slide plate 86 are connected by a spring 88, and the slide plate 86 is suspended by the spring 88. The tension of the spring 88 can be adjusted by an adjusting bolt 89 that supports the upper end of the spring 88. The lower limit position of the slide plate 86 that moves up and down can be adjusted by bringing the adjustment bolt 91 provided at the upper end of the stay 90 fixed to the slide plate 86 into contact with the upper end of the support plate 83.
[0037]
The output shaft of the motor 92 supported on the back surface of the slide plate 86 passes through the slide plate 86 and is fixed to a drive pulley 93 fixed thereto and a follower shaft fixed to a buff shaft 95 supported on the slide plate 86 via a bracket 94. The pulley 96 is connected by an endless belt 97. Therefore, when the motor 92 is driven, the buff shaft 95 rotates through the drive pulley 93, the endless belt 97, and the driven pulley 96, and the buff 26 fixed to the buff shaft 95 rotates. The periphery of the buff 26 is covered with a cover 99, and the inside of the cover 99 is connected to a blower (not shown) via an air blow duct 100.
[0038]
A support member 102 is fixed to the tips of two stays 101 erected on the upper surface of the arm member 71, and four cylinders 104 are supported downward on the support member 102 via brackets 103. The vacuum pad 24 is provided at the lower end of the piston rod 104 a of the cylinder 104, and the vacuum pad 24 and a vacuum source (not shown) are connected by a vacuum hose 105. In addition, the middle part of the air blow duct 100 is suspended and supported via the spring 107 on the upper end of the support column 106 erected on the support member 102.
[0039]
Thus, in the buffing / vacuum station S2, the slide plate 79 is reciprocated in the horizontal direction by the motor 80 while the buff 26 is rotated by the motor 92, whereby the tire tube support portion 41 is clamped by the clamp member 25. The circumference | surroundings of the sealing agent filling hole 2a of each tire tube 2 are buffed, and the dirt etc. which adhered there are cleaned. At this time, the amount of interference between the buff 26 and the tire tube 2 can be adjusted by the adjusting bolt 91, and the surface pressure at which the buff 26 contacts the tire tube 2 can be adjusted by the adjusting bolt 89. The dust scattered inside the cover 99 during the polishing by the buff 26 is blown off by the air from the air blow duct 100.
[0040]
When the buff 26 is retracted to a position where it does not interfere with the vacuum pad 24, the cylinder 104 is driven to extend and the vacuum pad 24 is lowered to adsorb around the sealant filling hole 2a of the tire tube 2. The air remaining in the sealant chamber 6 of the tire tube 2 is sucked by the vacuum pad 24 in a state where the clamp by the clamp member 25 is temporarily released. Then, the tire tube 2 is clamped again by the clamp member 25 and closed so that air does not enter the sealant chamber 6, and the cylinder 104 is driven to contract and the vacuum pad 24 is retracted upward.
[0041]
Next, the structure of the degreasing station S3 will be described based on FIG. 8, FIG. 15, and FIG.
[0042]
A support plate 142 is fixed to the tips of two arm members 141 extending from the connecting member 72, and the degreasing device 27 is provided at the lower ends of four drive sources 143 supported downward on the support plate 142. A columnar felt 27a is provided at the lower end of the degreasing device 27, and the felt 27a is impregnated with a solvent such as xylene or toluene. In the vicinity of the degreasing device 27, there are provided an air nozzle 144 that blows air to the degreasing portion to volatilize the solvent, and a gloss sensor 146 that moves up and down by the cylinder 145 and checks the solvent application state by gloss.
[0043]
Thus, the degreasing device 27 is lowered by the drive source 143, and the felt 27a brought into contact with the periphery of the sealant filling hole 2a of the tire tube 2 is rotated to adhere to the periphery of the sealant filling hole 2a. Remove oil with solvent. After retreating the felt 27a upward, air can be ejected from the air nozzle 144 to quickly evaporate the solvent.
[0044]
Next, the structure of the primer coating station S4 will be described with reference to FIGS.
[0045]
A support plate 148 is fixed to the distal ends of two arm members 147 extending from the connecting member 72, and the primer coating device 28 is provided at the lower ends of four drive sources 149 supported downward on the support plate 148. A cylindrical felt 28a is provided at the lower end of the primer coating device 28, and the felt 28a is impregnated with a primer for improving the adhesion of the thermosetting resin 30. The structure of the primer coating device 28 is the same as that of the degreasing device 27 except that the air nozzle 144 and the gloss sensor 146 are not provided.
[0046]
Thus, the primer application device 28 is lowered by the driving source 149 and the felt 28a abutted on the periphery of the sealant filling hole 2a of the tire tube 2 is rotated, so that the primer around the sealant filling hole 2a is rotated. Can be applied.
[0047]
Next, the structure of the mold station S5 will be described with reference to FIGS.
[0048]
A support plate 151 is fixed to the distal ends of two arm members 150 extending from the connecting member 72, and the sealer supply nozzle 29 is provided at the lower ends of four drive sources 152 supported downward on the support plate 151. Accordingly, the sealer supply nozzle 29 is lowered by the drive source 152, and the thermosetting resin 30 (see FIG. 4H) as a sealer can be molded into the sealant filling hole 2a of the tire tube 2.
[0049]
Next, the structure of the ironing station S6 will be described based on FIG. 8 and FIG.
[0050]
A support plate 131 is fixed to the tips of the two arm members 130 extending from the connecting member 72, and four cylinders 132 are supported downward on the support plate 131. The iron 29 is provided at the lower end of the piston rod 132 a of the cylinder 132. Therefore, the sealing agent filling hole 2a can be closed by pressing the high-temperature iron 29 against the thermosetting resin 30 molded in the tire tube 2 and curing it by heating.
[0051]
As described above, the index table 42 is rotated by 60 °, and the respective tire tube support portions 41 are sequentially stopped at the six work stations S1 to S6, and four tire tubes are installed at the work stations S1 to S6. 2 can be performed in a predetermined order, and can be performed simultaneously in a plurality of work stations S1 to S6, so that a large number of tire tubes 2 can be performed in a short time. Can be processed.
[0052]
As mentioned above, although the Example of this invention was explained in full detail, this invention can perform a various design change in the range which does not deviate from the summary.
[0053]
For example, in the embodiment, the buffing vacuum station S2 in which the buffing station and the vacuum station are integrated is provided, but the buffing station and the vacuum station may be provided separately.
[0054]
【The invention's effect】
As described above, according to the invention described in claim 1, a plurality of tire tube support portions that support a plurality of tire tubes and clamp them with a clamp member are provided on the outer periphery of the index table that intermittently rotates by a predetermined angle. Because the work set station, buff station, vacuum station, degreasing station, primer application station, mold station, and iron station are provided at the position facing the plurality of tire tube support parts of the stopped index table, By rotating the index table intermittently while supporting the tire tube on the tire tube support part at the set station and clamping the periphery of the sealant filling hole, the periphery of the sealant filling hole is polished at the buff station, and the vacuum station The air in the sealant chamber is evacuated, degreased around the sealant filling hole at the degreasing station, primer is applied around the sealant filling hole at the primer application station, and the sealant filling hole is heated at the mold station. The curable resin can be molded and the thermosetting resin can be heated and cured at the ironing station to close the sealant filling hole, and the above series of operations can be performed sequentially with the rotation of the index table in a short time. Can be completed automatically.
[0055]
In addition, buffing is performed with the periphery of the sealant filling hole clamped, so it is possible not only to prevent the tire tube from being damaged by the buffing load, but also to remove the oil and dirt and adhere the thermosetting resin. The strength can be increased, and the air in the sealant chamber is exhausted by evacuation, preventing air from entering the sealant and deteriorating the sealing performance, and degreasing around the sealant filling hole. Since the sealing agent filling hole is closed with the thermosetting resin after the treatment and the primer coating treatment are performed, the adhesion of the thermosetting resin can be enhanced to ensure the sealing performance. Furthermore, since each process of degreasing, primer coating, molding and ironing is performed with the periphery of the sealing agent filling hole clamped, air can be prevented from entering the sealing agent chamber again to ensure the performance of the sealing agent. Can do.
[0056]
According to the invention described in claim 2, since the plurality of tire tubes are supported on each tire tube support portion, it is possible to process the plurality of tire tubes at the same time, and the working efficiency is improved.
[0057]
According to the invention described in claim 3, since a plurality of tire tubes supported on each tire tube support portion are simultaneously processed at each work station, a plurality of operations are simultaneously advanced to improve work efficiency. Can do.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a wheel equipped with a tube tire.
2 is a sectional view taken along line 2-2 of FIG.
FIG. 3 is a first partial view illustrating a sealing agent sealing process.
FIG. 4 is a second partial diagram illustrating the sealing process of the sealing agent.
FIG. 5 is a perspective view of a sealing agent filling station.
FIG. 6 is an overall plan view of a sealing agent sealing device.
FIG. 7 is an overall plan view of an index table.
FIG. 8 is an overall plan view of the tool base.
9 is a cross-sectional view taken along line 9-9 in FIG.
10 is an enlarged view of the main part of FIG. 9 (cross-sectional view taken along line 10-10 of FIG. 11).
11 is a view in the direction of arrow 11 in FIG.
12 is a view in the direction of arrow 12 in FIG.
13 is a view in the direction of arrow 13 in FIG.
14 is a view in the direction of arrow 14 in FIG.
15 is a view in the direction of arrow 15 in FIG.
16 is a view in the direction of arrow 16 in FIG.
17 is a view in the direction of arrow 17 in FIG.
18 is a view taken in the direction of arrow 18 in FIG.
19 is an enlarged view of the main part of FIG.
[Explanation of symbols]
2 Tire tube
2a Sealant filling hole
6 Sealant chamber
7 Sealant
25 Clamp member
26 Buff
30 Thermosetting resin
41 Tire tube support
42 Index table
S1 Workset station (work station)
S2 Buffing / vacuum station (work station, buffing station, vacuum station)
S3 Degreasing station (work station)
S4 Primer application station (work station)
S5 Mold station (work station)
S6 Ironing station (working station)

Claims (3)

A sealant sealing device for a tire tube containing a sealant for sealing the sealant (7) in a state where air is not mixed into the sealant chamber (6) partitioned inside the tire tube (2),
An index table (42) that intermittently rotates by a predetermined angle;
A tire tube support portion (41) provided at an outer periphery of the index table (42) at each predetermined angle;
A clamp member (25) for clamping the periphery of the sealant filling hole (2a) of the tire tube (2) supported by each tire tube support portion (41);
A plurality of work stations (S1 to S6) provided at positions facing the plurality of tire tube support portions (41) of the index table (42) when the index table (42) stops;
With
The plurality of work stations (S1 to S6) are:
The tire tube (2) in which the sealant (7) and air filled from the sealant filling hole (2a) are present inside the sealant chamber (6) is supported and clamped by the tire tube support (41). A work set station (S1) for clamping with a member (25);
A buff station (S2) for polishing the periphery of the sealing agent filling hole (2a) with a buff (26);
A vacuum station (S2) for evacuating the air present in the sealant chamber (6) in a state where the clamp by the clamp member (25) is temporarily released;
A degreasing station (S3) for degreasing the periphery of the sealant filling hole (2a);
A primer application station (S4) for applying a primer around the sealant filling hole (2a);
A mold station (S5) for molding the thermosetting resin (30) so as to cover the sealing agent filling hole (2a);
An ironing station (S6) for heat-curing the molded thermosetting resin (30) to close the sealing agent filling hole (2a);
Including
While intermittently rotating the index table (42), each tire tube support (41) is moved to the work set station (S1), buff station (S2), vacuum station (S2), degreasing station (S3), primer application station ( S4) A sealing agent sealing device for a tire tube containing a sealing agent, wherein a predetermined operation is performed by sequentially stopping at positions facing the mold station (S5) and ironing station (S6). Each tire tube support part (41) can support a plurality of tire tubes (2), The sealing agent enclosure device of the tire tube containing a sealing agent according to claim 1 characterized by things. The sealing agent according to claim 2, wherein each work station (S1 to S6) can simultaneously process a plurality of tire tubes (2) supported by each tire tube support (41). Sealing device for entering tire tube.

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