JP2021109409A - Joining device and method of unvulcanized rubber member - Google Patents

Abstract

To provide a highly versatile joining device and method for joining unvulcanized rubber member, which can more easily join opposing end parts of the unvulcanized rubber member to each other.SOLUTION: A tapered part 4 of each slide pressing body 2 and a tapered part 8 of a holder 6 inclined in a same direction as the tapered part 4 are slidably opposed to each other, and each slide pressing body 2 is held by the holder 6. The opposite slide pressing body 2 are allowed to approach and separate from each other, and the holder 6 is moved relatively close to the surface of each opposite end part Ra and Rb of an unvulcanized rubber member R by a cylinder 11. With the corresponding pressing body 2 placed facing a surface of the end part Ra and Rb, the holder 6 is further moved relatively close to the surface of each end part Ra and Rb. The end part Ra and Rb pressed by each slide pressing body 2 are moved close to the opposite slide pressing body 2 together with the slide pressing body 2 to join the end part Ra and Rb.SELECTED DRAWING: Figure 5

Description

The present invention relates to a joining device and method for unvulcanized rubber members. More specifically, the present invention is a highly versatile unvulcanized rubber member capable of more easily joining opposing ends of unvulcanized rubber members. It relates to a joining device and a method of.

When manufacturing rubber products such as tires, there is a joining step of joining the ends of unvulcanized rubber members. Various joining methods and devices for performing this joining step have been proposed (see, for example, Patent Document 1).

In this joining device proposed in Patent Document 1, a plurality of anterior inferior claws (anterior inferior claw group) and a plurality of posterior inferior claws (posterior inferior claw group) can each swing to the lower base via a pin. It is supported by. Further, a plurality of anterior upper claws (anterior upper claw group) and a plurality of posterior upper claws (posterior upper claw group) are pivotally supported on the upper base via pins so as to be swingable. Then, by moving the upper base downward toward the lower base, the rear end portion of the rubber member is vertically sandwiched by the front lower claw and the front upper claw, and the front end portion of the rubber member is held by the rear lower claw and the rear upper claw. It is held up and down by the claws. By moving the upper base further downward, each claw swings around the pin, and the front end and the rear end of the rubber member are joined in a substantially rectangular wavy shape and abutted against each other (paragraph 0041). ~ 0043, FIGS. 5 to 7, etc.).

In this joining device, the tips (lower joints) of the front lower claw and the rear lower claw are arranged directly under the respective tips (upper joint) of the front upper claw and the rear upper claw, and the front ends of the rubber member are arranged. , It is assumed that the rear end is cut straight up and down. Therefore, this joining device cannot support joining of rubber members whose front end and rear end are cut diagonally in the vertical direction. Further, in this joining device, since each claw is swung around the pin that supports the shaft, it is difficult to lengthen the moving stroke of each claw, and the position of each claw is adjusted with high accuracy. The device structure becomes complicated. Therefore, there is room for improvement in order to more easily join the end portions of the unvulcanized rubber members having various shapes facing each other.

Japanese Unexamined Patent Publication No. 2011-126212

An object of the present invention is to provide a highly versatile joining device and method for joining unvulcanized rubber members to each other, which can more easily join the opposing ends of the unvulcanized rubber members.

In order to achieve the above object, the joining device for unsulfurized rubber members of the present invention includes separate pressing bodies placed facing each other on the surfaces of the opposing ends of the unsulfurized rubber members, respectively. The holder on which the pressing body is held and the proximity separating means for moving the holder relative to each other on the surface thereof are provided, and the pressing body on at least one opposite side is opposed to the other. It is a slide pressing body that is held in the holder so as to be close to and detached from the pressing body on the side, and the holder is relative to the surface in a state where the slide pressing body is placed on the surface. It has a proximity slide mechanism that moves the slide pressing body close to the opposing pressing body by moving the slide pressing body close to the slide pressing body, and the proximity slide mechanism has a pressing body tapered portion formed on the slide pressing body and the pressing body. It is characterized in that the slide pressing body is held in the holder by slidably facing the holder taper portion formed in the holder so as to be inclined in the same direction as the tapered portion.

In the method of joining unvulverized rubber members of the present invention, separate pressing bodies facing each other are held in a holder, and the pressing bodies on at least one opposite side are brought close to the pressing bodies on the opposite side. And, as a slide pressing body that can be separated, the pressing body tapered portion formed on the slide pressing body and the holder tapered portion formed on the holder that is inclined in the same direction as the pressing body tapered portion can be slidable. The proximity slide mechanism is formed by holding the slide pressing body in the holder so as to face each other, and the holder is moved relatively close to the surface of the opposite end portion of the unvulvered rubber member to move the surface. The slide pressing body is slid by the proximity slide mechanism by placing the corresponding pressing body in a state of facing each other and further moving the holder relatively close to the surface. It is characterized in that, together with the one end portion pressed by the pressing body, the one end portion is moved close to the opposing pressing body to join the one end portion and the other end portion facing the pressing body.

According to the present invention, the pressing body tapered portion formed on the slide pressing body and the holder tapered portion inclined in the same direction as the pressing body tapered portion and formed on the holder are slidably opposed to each other. The facing ends of the unvulcanized rubber members are joined to each other by using a proximity slide mechanism configured by holding the slide pressing body in the holder. When the corresponding pressing body is placed on each of the surfaces of the opposing ends of the unvulcanized rubber member so as to face each other, and the holder is further moved relatively close to the surface. Since the slide pressing body moves close to the opposing pressing body by the proximity slide mechanism, one end of the slide pressing body pressed by the slide pressing body moves close to the other end. It can be moved and joined. Therefore, it has high versatility because it is possible to join ends having various shapes, such as when the ends of the rubber members to be joined are cut diagonally in the vertical direction. Further, by using the proximity slide mechanism, the device structure can be made simpler and the ends can be easily joined to each other.

It is explanatory drawing which illustrates the joining apparatus of the unvulcanized rubber member of this invention in a side view with a part in a vertical cross section. It is explanatory drawing which illustrates the joining apparatus of FIG. 1 in the front view. It is explanatory drawing which illustrates the joining apparatus of FIG. 1 in a plan view. It is explanatory drawing which illustrates the state which moved the holder of FIG. 1 downward, and put the pressing body on the end portion of a rubber member. It is explanatory drawing which illustrates the state in which the holder of FIG. 4 is further moved downward, and the facing end portions of the rubber member are joined to each other. It is explanatory drawing which illustrates another embodiment of a joining apparatus in a side view with a part in a vertical cross section. It is explanatory drawing which illustrates the state which moved the holder of FIG. 6 downward, and joined the opposite ends of a rubber member. It is explanatory drawing which illustrates still another embodiment of a joining apparatus in a side view with a part in a vertical cross section. It is explanatory drawing which illustrates the joining apparatus of FIG. 8 in a plan view. It is explanatory drawing which illustrates still another embodiment of a joining apparatus in a side view with a part in a vertical cross section. It is explanatory drawing which illustrates the state in which the upper holder of FIG. 10 is moved downward and the facing ends of the rubber member are joined to each other. It is explanatory drawing which illustrates still another embodiment of a joining apparatus in a side view with a part in a vertical cross section. It is explanatory drawing which illustrates still another embodiment of a joining apparatus in a side view with a part in a vertical cross section. It is explanatory drawing which shows the deformation example of the opposing pressing body in a plan view. It is explanatory drawing which illustrates the state in which the pressing bodies of FIG. 14 are moved close to each other.

Hereinafter, the joining apparatus and method for unvulcanized rubber members of the present invention will be described based on the embodiment shown in the figure.

The unvulcanized rubber member joining device 1 (hereinafter referred to as the joining device 1) of the present invention exemplified in FIGS. 1 to 3 joins the ends of the unvulcanized rubber members R (R1, R2) to each other. Used for. For example, when joining one end Ra of one strip-shaped rubber member R1 and the other end Rb of another strip-shaped rubber member R2, one of the strip-shaped rubber members R1 is also joined. This joining device 1 can also be used when joining the end portion Ra and the other end portion Rb of the above. In this embodiment, a case where the ends Ra and Rb of the separate rubber members R1 and R2 are joined to each other will be described as an example.

Examples of the rubber member R include various tire constituent members such as tire tread rubber and side rubber formed of unvulcanized rubber, and constituent members of rubber products other than tires. Further, the rubber member R includes not only a member formed only of unvulcanized rubber but also a member formed of, for example, unvulcanized rubber and various reinforcing members such as reinforcing wires.

In the joining device 1, separate pressing bodies 2 (2A, 2B) placed so as to face each of the surfaces of the opposing ends Ra and Rb of the rubber members R1 and R2, and the respective pressing bodies 2A and 2B are provided. A holder 6 to be held and a fluid cylinder 11 to which the tip of a rod is connected to the holder 6 are provided. The rubber members R1 and R2 are mounted on a mounting body 12 such as a conveyor belt. The mounting body 12 is opposed to the pressing bodies 2A and 2B, and the ends Ra and Rb of the rubber members R1 and R2 are mounted. The direction of the arrow L in the drawing indicates the longitudinal direction of the rubber members R1 and R2 (the front-back direction of the pressing body 2), and the direction of the arrow D is the thickness direction of the rubber members R1 and R2 (the height direction of the pressing body 2). The direction of the arrow W indicates the width direction of the rubber members R1 and R2 (the width direction of the pressing body 2).

The pressing bodies 2A and 2B facing each other are slide pressing bodies held in the holder 6 so as to be movable close to each other and away from each other. The pressing bodies 2A and 2B have a trapezoidal cross-sectional shape, and the lower end thereof is a pressing surface 3 that contacts the surfaces of the end portions Ra and Rb. The facing surfaces (front surfaces) of the pressing bodies 2A and 2B are vertical surfaces, and the back surface is an inclined pressing body tapered portion 4. As illustrated in FIG. 1, the inclinations of the pressing body tapered portions 4 of the pressing bodies 2A and 2B are opposite to each other. The pressing body tapered portion 4 of the pressing body 2A on one side is inclined toward the lower left side at an inclination angle T1 with respect to the vertical, and the pressing body tapered portion 4 of the pressing body 2B on the other side is vertically toward the lower right side. It is tilted with respect to the tilt angle T2. In this embodiment, the inclination angles T1 and T2 are substantially the same.

The pressing bodies 2A and 2B are formed with elongated holes 5 extending at substantially the same inclination as the inclination of the respective pressing body tapered portions. Two pins 9 penetrate each of the elongated holes 5 and cross the pressing bodies 2A and 2B in the width direction. By attaching each pin 9 to the holder 6, the pressing bodies 2A and 2B can be guided by the respective pins 9 and move in the extending direction of the elongated hole 5.

The accommodating portion 7 formed inside the holder 6 has a holder tapered portion 8 formed so as to be inclined in the same direction as the respective pressing body tapered portions 4. The pressing bodies 2A and 2B are held in the accommodating portion 7 so that the respective pressing tapered portions 4 and the corresponding holder tapered portions 8 are slidably opposed to each other. The holder taper portion 8 facing the pressing body taper portion 4 of the pressing body 2A on one side is inclined toward the lower left side at an inclination angle T1 with respect to the vertical direction, and is inclined to the pressing body tapered portion 4 of the pressing body 2B on the other side. The facing holder taper portion 8 is inclined toward the lower right side at an inclination angle T2 with respect to the vertical direction.

The upper ends of the pressing bodies 2A and 2B and the upper surface of the accommodating portion 7 are connected by an urging member 10. The urging member 10 urges the respective pressing bodies 2A and 2B along the inclination of the respective pressing body tapered portions 4 so as to separate them from the opposite side. The respective pressing bodies 2A and 2B urged by the urging member 10 project from the lower surface of the holder 6. Examples of the urging member 10 include various springs such as coil springs and elastic bodies such as vulcanized rubber. The urging member 10 can be optionally provided. When the urging member 10 is not provided, the respective pressing bodies 2A and 2B move downward due to their own weight and protrude from the lower surface of the holder 6.

The fluid cylinder 11 functions as a proximity separation means for moving the holder 6 relatively close to and away from the surfaces of the respective end portions Ra and Rb. As the fluid cylinder 11, a hydraulic cylinder, an air cylinder, or the like can be used. Instead of the fluid cylinder 11, for example, a rod that advances and retreats by a servomotor can be used.

When an upward external force acts on each of the pressing surfaces 3, the respective pressing body tapered portions 4 and the facing holder tapered portions 8 slide, and the pressing bodies 2A and 2B move diagonally upward along the holder tapered portions 8. do. As a result, the pressing bodies 2A and 2B move close to each other. In this way, the pressing body tapered portion 4 and the holder tapered portion 8 inclined in the same direction as the pressing body tapered portion 4 are slidably opposed to each other, and the pressing bodies 2A and 2B are held by the holder 6, thereby causing the proximity slide mechanism. Is configured.

In this embodiment, a plurality of joining devices 1 are arranged side by side in the width direction of the rubber members R1 and R2. When joining the end portions Ra and Rb over the entire length of the rubber members R1 and R2 in the width direction, the joining device 1 is arranged in this way. An appropriate number of joining devices 1 are arranged at appropriate positions according to the joining length and joining position of the ends Ra and Rb.

Next, an example of a procedure for joining the end portions Ra and Rb of the opposing rubber members R1 and R2 will be described.

As illustrated in FIGS. 1 to 3, rubber members R1 and R2 are placed on the mounting body 12 with their ends Ra and Rb facing each other. As a result, the respective end portions Ra and Rb are positioned below the joining device 1 arranged at the standby position. The tips of the respective end portions Ra and Rb are cut so as to be inclined in the same direction diagonally in the vertical direction.

Next, by operating the fluid cylinder 11 and extending the rod downward, the pressing bodies 2A and 2B are moved close to the surfaces of the respective end portions Ra and Rb together with the holder 6. By this proximity movement, as illustrated in FIG. 4, the corresponding pressing bodies 2A and 2B are placed on the surfaces of the respective end portions Ra and Rb so as to face each other. In FIG. 4, the pressing bodies 2A and 2B are arranged so that there is a gap between the end face of the end portion Ra and the end face of the end portion Rb between the pressing bodies 2A and 2B, respectively.

Next, as illustrated in FIG. 5, the rod of the fluid cylinder 11 is further extended downward to further move the holder 6 closer to the surfaces of the respective end portions Ra and Rb. Due to this proximity movement, each of the pressing body tapered portions 4 slides along the opposite holder tapered portions 8. As a result, the pressing bodies 2A and 2B move so as to be close to each other against the urging force of the urging member 10.

Here, the respective end portions Ra and Rb move together with the pressing bodies 2A and 2B while being pressed downward by the pressing surfaces 3 of the pressing bodies 2A and 2B. Therefore, the opposite end portions Ra and Rb are stretched and move close to each other, and are firmly joined to each other in a state of being vertically sandwiched between the pressing bodies 2A and 2B and the mounting body 12.

In this way, by moving the holder 9 relatively close to each surface while the pressing bodies 2A and 2B are placed on the surfaces of the ends Ra and Rb, respectively, the proximity slide mechanism is used. The opposing pressing bodies 2A and 2B are moved close to each other. The respective end portions Ra and Rb are brought close to each other so as to be stretched while being pressed downward by the corresponding pressing bodies 2A and 2B. Therefore, not only when the tips of the ends Ra and Rb to be joined are cut vertically, but also when the ends of various shapes are cut diagonally in the vertical direction, the ends can be joined. This joining device 1 has high versatility.

Further, by using the proximity slide mechanism described above, it becomes possible to make the device structure simpler without complicating the device structure. In the joining step, the corresponding pressing bodies 2A and 2B are placed on the surfaces of the opposite end portions Ra and Rb, and the holder 6 is further moved closer to the surfaces of the respective end portions Ra and Rb. It will be a simple and easy task.

The pressing bodies 2A and 2B need only have the pressing tapered portion 4, and various shapes can be adopted. The shape and size of the pressing surface 3 can be set relatively freely. Since it is easy to secure a large contact area with the surfaces of the end portions Ra and Rb by making the area of the pressing surface 3 an appropriate size, when the end portions Ra and Rb are joined to each other, the end portions Ra and Rb are locally extremely stretched. It is advantageous to avoid the occurrence of a damaged part.

The pressing surface 3 is not limited to a simple flat surface, and may have specifications having small irregularities. For example, by performing knurling on the pressing surface 3, the friction with the end portions Ra and Rb can be increased, and the displacement of the end portions Ra and Rb moving together with the pressing bodies 2A and 2B can be suppressed. As a result, when joining the end portions Ra and Rb to each other, it is advantageous to stretch the end portions Ra and Rb more stably.

By changing the inclination angles T1 and T2 of the pressing body tapered portion 4 and the holder tapered portion 8, the pressing bodies 2A and 2B move closer to each other with respect to the proximity movement of the holder 6 with respect to the surfaces of the end portions Ra and Rb. Can be different. As the inclination angles T1 and T2 are increased, the proximity movement amount of the pressing bodies 2A and 2B is increased with respect to the predetermined downward movement amount of the holder 6. For example, at least one of the inclination angles T1 and T2 may be different for each joining device 1 arranged in parallel in the width direction of the rubber members R1 and R2. Further, the sizes of the tilt angle T1 and the tilt angle T2 can be set not only to be the same but also to different sizes. Specifically, the inclination angles T1 and T2 are set to appropriate angles based on the stretchability of the rubber members R1 and R2 and the like.

In this embodiment, since the urging member 10 is provided, when the holder 6 is returned to the standby position, the respective pressing bodies 2A and 2B are in a state of protruding from the lower surface of the holder 6 as originally set. For example, even if a rubber piece or the like gets in between the pressing body tapered portion 4 and the holder tapered portion 8, the respective pressing bodies 2A and 2B can be stably projected from the lower surface of the holder 6.

In the above-described embodiment, the respective pressing bodies 2A and 2B are slide pressing bodies, but at least one of the opposing pressing bodies 2A can approach and separate from the opposing pressing body 2B of the other side. It may be any slide pressing body held in. In the embodiment illustrated in FIG. 6, the pressing body 2A on one side is a slide pressing body, and the pressing body 2B on the other side is a non-slide pressing body.

The pressing body 2B on the other side is held by the holder 6 so as to be movable in the vertical direction. An elongated hole 5 extending in the vertical direction is formed in the pressing body 2B, and two pins 9 penetrate the elongated hole 5 and cross the pressing body 2B in the width direction. By attaching each pin 9 to the holder 6, the pressing body 2B can be guided by each pin 9 and move in the extending direction of the elongated hole 5. Further, the upper end of the pressing body 2B and the upper surface of the accommodating portion 7 are connected by an urging member 10. The pressing body 2B is constantly urged downward by the urging member 10.

In this joining device 1, the pressing body tapered portion 4 of the pressing body 2A on one side and the holder tapered portion 8 facing the pressing body 2A are inclined at a predetermined inclination angle with respect to the vertical direction, and the pressing body 2A moves along the inclination. do. The vertical side surface of the pressing body 2B on the other side moves vertically along the facing vertical wall surface of the accommodating portion 7.

In order to join the ends Ra and Rb to each other using this joining device 1, the respective ends Ra and Rb are positioned below the joining device 1 arranged at the standby position as illustrated in FIG. do. Next, the rod of the fluid cylinder 11 is extended downward, and the pressing bodies 2A and 2B are moved close to the surfaces of the respective end portions Ra and Rb together with the holder 6, and the surfaces of the respective end portions Ra and Rb are moved. The corresponding pressing bodies 2A and 2B are placed so as to face each other.

Next, as illustrated in FIG. 7, the rod of the fluid cylinder 11 is further extended downward to further move the holder 6 closer to the surfaces of the respective end portions Ra and Rb. As a result, the pressing body tapered portion 4 of the pressing body 2A slides along the holder tapered portion 8. Therefore, the pressing body 2A moves closer to the pressing body 2B on the other side. Along with this, one end Ra moves together with the pressing body 2A while being pressed downward by the pressing surface 3 of the pressing body 2A.

Since the pressing body 2B on the other side is only pressed downward, the other end Rb is pressed more strongly downward by the pressing surface 3 of the pressing body 2A. As a result, one end Ra moves close to the other end Rb, and the pressing bodies 2A and 2B and the mounting body 12 are firmly joined to each other in a state of being sandwiched vertically.

In this joining device 1, the other end Rb is not substantially stretched in the joining step between the ends Ra and Rb. Therefore, it is useful when it is desired to join the end portions Ra and Rb without stretching the end portion Rb as much as possible.

The mounting body 12 illustrated in FIGS. 8 and 9 can also be used. The mounting body 12 has a slide portion 13 that slides the mounted end portion Ra from the pressing body 2A side toward the pressing body 2B on the opposite side, and a mounting end portion Rb on the pressing body 2B side. It is provided with a slide portion 13 that slides toward the pressing body 2A on the opposite side. In this embodiment, as the slide portion 13, a rotating roller that rotates with the width direction of the rubber members R1 and R2 as the roller axis is adopted.

By providing the slide portion 13, it becomes easy to move the end portion Ra together with the pressing body 2A to the opposing pressing body 2B side, and it becomes easy to move the end portion Rb together with the pressing body 2B to the opposing pressing body 2A side. As a result, it is advantageous to move the end portions Ra and Rb closer to each other more smoothly and firmly join them. In addition, a low friction layer such as fluororesin provided on the surface of the mounting body 12 can be used as the slide portion 13. The slide portion 13 may be arranged at an appropriate position.

The mounting body 12 illustrated in FIGS. 10 and 11 can also be used. The mounting body 12 has separate pressing bodies 2A and 2B constituting the various joining devices 11 exemplified above, and a holder 6 in which these pressing bodies 2A and 2B are held. Therefore, in this joining device 1, the opposing pressing bodies 2A and 2B held by the holder 6 are arranged so as to face each other vertically with the rubber members R1 and R2 interposed therebetween.

In this joining device 1, one end Ra is mounted on the pressing surface 3 of the pressing body 2A on one side constituting the mounting body 12, and the other end Rb is placed on the pressing surface 3 of the pressing body 2B on the other side. Is placed. Then, the holder 6 arranged on the upper side is moved close to the surfaces of the respective end portions Ra and Rb in the same manner as in the various joining devices 1 exemplified above, and the surfaces of the respective end portions Ra and Rb are moved. The corresponding pressing bodies 2A and 2B are placed so as to face each other.

Next, as illustrated in FIG. 11, the rod of the fluid cylinder 11 is further extended downward, and the holder 6 arranged on the upper side is further moved closer to the surfaces of the respective end portions Ra and Rb. As a result, one end Ra is stretched toward the opposing pressing bodies 2B and 2B while being sandwiched between the upper and lower pressing bodies 2A and 2A. The other end Rb is stretched toward the opposing pressing bodies 2A and 2A while being sandwiched between the upper and lower pressing bodies 2B and 2B. As a result, the end portions Ra and Rb are firmly joined to each other in a state of being vertically sandwiched between the lower pressing bodies 2A and 2B and the upper pressing bodies 2A and 2B.

The pressing surface 3 of the pressing bodies 2A and 2B can be formed not only as a simple flat surface but also as a shape corresponding to the surface shape of the end portions Ra and Rb as illustrated in FIG. In this embodiment, the mounting body 12 is a molding drum. Therefore, the rubber members R1 and R2 are placed on the outer peripheral surface 12a of the molding drum. Therefore, the pressing surface 3 has an arc shape having the same curvature as the surfaces (or outer peripheral surfaces 12a) of the rubber members R1 and R2. By forming the pressing surface 3 in such a shape, it becomes easy to smoothly join the end portions Ra and Rb to each other while pressing the surfaces of the end portions Ra and Rb more evenly by the pressing surface 3.

As illustrated in FIG. 13, the holder 6 holding the pressing bodies 2A and 2B is fixed at a predetermined position, and the mounting body 12 on which the rubber members R1 and R2 are mounted is attached to the holder 6. It may be configured to move in close proximity and away from each other. In this embodiment, the rod of the fluid cylinder 11 is connected to the mounting body 12. By advancing and retreating this rod up and down, the mounting body 12 moves closer to and away from the opposite holder 6. That is, the holder 6 may be relatively close to and separated from the surfaces of the respective ends Ra and Rb.

As illustrated in FIG. 14, the pressing bodies 2A and 2B can be designed to have a meshing convex portion 3a and a meshing concave portion 3b on facing surfaces thereof. As illustrated in FIG. 15, when the pressing bodies 2A and 2B move close to each other, the meshing convex portion 3a of the pressing body 2A on one side enters the meshing recess 3b of the pressing body 2B on the other side, and the other side. The meshing convex portion 3a of the pressing body 2B of the above enters into the meshing recess 3b of the pressing body 2A on one side.

In this embodiment, the end portions Ra and Rb can be moved closer to the opposite side as the pressing bodies 2A and 2B move. Therefore, it is advantageous to join the end portions Ra and Rb more firmly.

The configurations described in each of the above embodiments can be adopted alone or in combination to the extent applicable in another embodiment.

1 Joining device 2 (2A, 2B) Pressing body 3 Pressing surface 3a Engaging convex portion 3b Engaging concave portion 4 Pressing body tapered portion (proximity slide mechanism)
5 Long hole 6 Holder 7 Accommodating part 8 Holder taper part (proximity slide mechanism)
9 pin 10 urging member 11 fluid cylinder (proximity separation means)
12 Mounting body 12a Outer peripheral surface 13 Slide portion R (R1, R2) Unvulcanized rubber member Ra One end Rb The other end

Claims (6)

Separate pressing bodies placed facing each other on the surfaces of the opposing ends of the unvulnered rubber member, a holder on which each of the pressing bodies is held, and the holder for each of the surfaces. The holder is provided with a proximity separation means for relatively approaching and separating, and the pressing body on at least one side facing the holder is held in the holder so as to be close to and separating from the pressing body on the opposite side. It is a slide pressing body, and the slide pressing body is moved close to the opposing pressing body by moving the holder relatively close to the surface while the slide pressing body is placed on the surface. The proximity slide mechanism has a proximity slide mechanism, and the proximity slide mechanism slides a pressing body tapered portion formed on the slide pressing body and a holder tapered portion formed on the holder so as to be inclined in the same direction as the pressing body tapered portion. A joining device for unsulfurized rubber members, characterized in that the slide pressing bodies are held in the holder so as to be movably opposed to each other. The joining device for unvulcanized rubber members according to claim 1, wherein the opposing pressing bodies are the slide pressing bodies. The unvulcanized rubber member joining device according to claim 1, wherein only the pressing body on one side facing the slide pressing body is the slide pressing body. The unvulcanized rubber member according to any one of claims 1 to 3, which has an urging member that urges the slide pressing body along the inclination of the holder tapered portion so as to separate the slide pressing body from the opposing pressing body. Device. It has a mounting body on which an end portion of the rubber member is placed so as to be opposed to the slide pressing body, and the mounting body has the end portion on which the mounting body is placed so as to face the slide pressing body side. The unvulcanized rubber member joining device according to claim 1 to 4, further comprising a slide portion that slides toward a pressing body. The slide pressing body is held by holding separate pressing bodies facing each other, and the pressing body on at least one opposite side is made into a slide pressing body capable of approaching and separating from the pressing body on the opposite side. The slide pressing body is held in the holder by slidably facing the pressing body tapered portion formed in the above and the holder tapered portion formed in the holder so as to be inclined in the same direction as the pressing body taper portion. The proximity slide mechanism is configured by By further moving the holder relatively close to the surface in the placed state, the slide pressing body is pressed by the close sliding mechanism together with the one end portion pressed by the slide pressing body. A method for joining an unvulvered rubber member, which comprises moving the pressing body close to the opposing pressing body to join one end thereof and the other end facing the pressing body.

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