JP2003305782A - Press bonding apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a press bonding apparatus which can bond thick works to each other correctly and simply by weak force. <P>SOLUTION: At least one pair of press rollers 14 and 15 which are pressed to a part close to the abutting surface of each work and roll, with each rotational axis slanted to expand in a truncated chevron shape reversely to the advance direction, is fitted to a moving body 3 moving along the abutting surface of the works. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for crimp-bonding a plurality of workpieces having a property of bonding by pre-vulcanization, such as a rubber plate material before vulcanization, to each other.

[0002]

2. Description of the Related Art In a tire manufacturing process, a rubber plate material before being vulcanized, which is formed into a continuous strip shape (a reinforcing cord may be embedded therein), is cut into a required length and then cut. There is a step of changing the direction of the short pieces and sequentially joining them. As a conventional crimping and bonding apparatus used in such a process, two opposite ends of a rubber plate material (hereinafter referred to as a work) are
A pair of pressing pads supported by a parallel link mechanism is mounted on an elevating body that is placed on two opposing receiving plates and can be lowered from above by the operation of an elevating means such as a hydraulic cylinder. There is a device in which the pressing pad is moved further in a direction in which the pressing pads are moved closer to each other by pressing the pad and then the elevating body is further lowered, so that the end surfaces of both works are brought into contact with each other.

The pair of receiving plates are adapted to be moved in the direction of approaching each other by a hydraulic cylinder or the like at the same timing as the lowering of the elevating body.

[0004]

However, in the conventional device as described above, since the entire opposing end faces of the two works are pressed at the same time, a large and powerful lifting means is required.
There is a problem that it cannot cope with a work having a large thickness, and that the two works must be accurately positioned before joining.

In view of the above-mentioned problems of the prior art, the present invention provides a crimping and bonding apparatus that enables the thick works to be crimped accurately and easily with light force. Is intended.

[0006]

According to the present invention, the above problems can be solved as follows. (1) At least one pair of rolling rollers adapted to roll by being in pressure contact with a portion of each of the works in proximity to the abutting surface of the moving body that moves along the abutting surface of the plurality of works, Are installed so as to be inclined in such a manner that they spread out in a V-shape in the direction opposite to the traveling direction.

(2) In the above item (1), at least two pairs of pressure rollers that are vertically opposed to each other are used to sandwich a portion of a plurality of works close to the abutting surfaces from above and below.

(3) In the above item (2), the outer diameter of the lower pressure roller is larger than the outer diameter of the upper roller.

(4) In any one of the above items (1) to (3), a plurality of pairs of pressure rollers are arranged in the moving body side by side in the traveling direction.

(5) In the above item (4), the inclination angle of the pressure roller at the front of the traveling direction is made steeper than the inclination angle of the pressure roller at the rear of the traveling direction.

(6) In any one of the above items (1) to (5), the moving member is provided with a moving means for moving each of the pressure rollers into and out of the work.

(7) In any one of the above items (1) to (6), an annular or spiral uneven strip is provided on the outer peripheral surface of each roller.

(8) In the above item (7), the pitch of the uneven ridges on the inner side of each rolling roller is smaller than the pitch of the uneven ridges on the outer side.

(9) In any one of the above items (1) to (8), a crown gear is formed at the inner end of each of the pair of compaction rollers, and they are meshed with each other.

(10) In any one of the above items (1) to (9), a thin plate-shaped guide for interposing between a movable body and the end faces of the respective works by interposing the movable body between opposed end faces of the plurality of works. Provide a plate.

(11) In the above item (10), the upper and lower portions of the moving body are connected to each other by the guide plate.

(12) In any one of the above items (1) to (11), it is possible to move two moving bodies whose pressing directions are outwards with respect to each other along the abutting surfaces of a plurality of works. It is installed as.

[0018]

1 to 7 show a first embodiment of the present invention. As shown in FIG. 1 and FIG. 2, the crimping and joining apparatus (A) includes a large number of workpieces (B) and (C), which are rubber plate materials for forming tires before vulcanization, in a forward direction indicated by an arrow in FIG. Front and rear conveyors that can be sequentially transported toward (D)
It is arranged between (E).

Each of the conveyors (D) and (E) can be a roller conveyor, a belt conveyor, or any other known structure, some of which are shown in phantom in detail in FIG.

The crimping and joining device (A) is composed of a pair of left and right moving bodies slidably mounted on a pair of upper and lower guide rails (2) and (2) which are supported by the support body (1) and which face the left and right directions. (3) Equipped with (3).

Each moving body (3) has upper and lower guide rails (2).
The screw shafts (4), which are disposed between (2) and are oriented in the left-right direction, are screwed together, and each screw shaft (4) is driven by a motor (5) arranged outside the left and right supports (1). By rotating forward and backward,
To the overrun position beyond the center line (CL) of the entire device, as shown by the solid line in Fig. 2 to the phantom line in Fig. 2 (only the left moving body (3)). The spaces can be moved independently of each other.

Since the left and right moving bodies (3) and (3) have a bilaterally symmetrical structure, only the left one will be described in detail in the following description, and the right one will be described in detail. The description is omitted.

As shown in FIGS. 3 to 5, the moving body on the left side
(3) is a work (B) formed by the conveyors (D) and (E)
(C) Consists of a lower part (3a) located below the transport surface (6) and an upper part (3b) also located above, and both parts (3a) (3b).
Are connected to each other by a thin plate-shaped guide plate (7) which stands in the left-right direction.

The guide plate (7) intervenes between the facing surfaces of the front and rear works (B) and (C) and positions the moving body (3) and the end faces of the works (B) and (C). .

On both side surfaces of the middle part of the guide plate (7), horizontal receiving pieces (8) for supporting the opposite ends of the front and rear works (B) and (C) on the conveying surface (6) are fixed. ing.

The column (9) in the upper part (3b) of the moving body (3)
On the inner surface of the movable head (11), which can be moved up and down by moving means (10) consisting of a downward air cylinder device.
Is mounted so as to be slidable in the vertical direction.

The lower end of the movable head (11) and the upper end of the fixed head (12) provided on the upper surface of the lower part (3a) of the moving body (3) so as to face it face in the front-back direction. The guide roller (13) and the two pairs of front and rear compaction rollers (14), (14), (15) and (15) correspond to the upper and lower sides, respectively, so that the moving body (3) travels in the pressing direction. (In this example, the left mobile unit (3)
Are sequentially provided along the left and right moving bodies (3) on the right side.

The straight upper and lower guide rollers (13) and (13) sandwich the opposite edges of the front and rear works (B) and (C) between them so that both works (B) and (C) are sandwiched. The function of preventing the opposite edge portions from overlapping with each other and being displaced in the front-rear direction or the left-right direction.

Front and rear paired compaction rollers (14) (14) (15) (1
5) is a cantilevered inclined shaft (16) () so that the movable body (3) spreads out in a direction opposite to the advancing direction at the time of crimping work, that is, rightward in plan view. 17), each of which is pivotally supported by the movable head (11) and the fixed head (12).

In this example, the left and right compaction rollers (14) and (15) are parallel to each other, and each is 100 ° to 110 ° with respect to the traveling direction of the moving body (3) (in the direction opposite to the traveling direction). 80 ° ~
It is designed to incline only 70 °).

Crown wheels (18) are formed at the ends of the front and rear compaction rollers (14), (14), (15), (15) facing each other.
By engaging them with each other, the front and rear roller compaction rollers (14, 14) rotate in synchronization with each other.

As shown in FIG. 6, each compaction roller (14) (15)
In the outer peripheral surface of the inner end portion including the crown gear (18) in, the surface facing the inner end is vertical, and the surface facing the outer end is a sloped saw-toothed annular or spiral uneven line ( 19), similarly, on the outer peripheral surface other than that, there are formed similar uneven ridges (20) each having a larger pitch and tooth profile than the above-mentioned uneven ridges (19).

Incidentally, the concavo-convex strips (19) of the respective compaction rollers (14) (15)
When making (20) a spiral, the concavo-convex strips (19) (20) of the rear compaction rollers (14) (15) are right-handed screws, and the front compaction rollers (14) (1)
The uneven strips (19) and (20) of 5) are preferably left-handed threads.

Next, the operating procedure and action of the crimping and bonding apparatus (A) will be described with reference to FIG. Note that this operation procedure is an example, and it goes without saying that the operation may be performed according to another different operation procedure.

As shown in FIG. 7A, the left and right moving bodies (3)
In the state where (3) is located at the retracted position, as shown in FIG. 1, the front and rear works (B) and (C) are arranged such that the opposite ends thereof are the guide plates (7) of the respective moving bodies (3). Conveyor (D) so that they are abutted or close to each other on the movement trajectory of
(E) Place on top.

Next, as shown in FIG. 7 (B), both moving bodies (3) and (3) are moved to a position close to each other in the center of the apparatus with the movable head (11) being raised. After moving in the direction, the movable heads (11) of both moving bodies (3) (3) are lowered, and the upper and lower guide rollers (13) and pressure rollers (14) (15)
Then, the opposite ends of the front and rear works (B) and (C) are gripped from above and below.

At this time, the downward pressing force of the movable head (11) becomes an optimum value according to the thickness of the works (B) and (C). It is preferable to regulate the air pressure.

Next, as shown in FIG. 7C, only the right moving body (3) is moved slightly to the right, at least from the center line (CL) of the left moving body (3) to the right. Move only the amount that can overrun. Then, by the moving body (3) on the left,
The upper and lower guide rollers (13) and rolling rollers ( 14) and (15) roll along the upper and lower surfaces of the corresponding ends of the works (B) and (C).

At this time, since the front and rear compaction rollers (14) and (15) are inclined as described above, the opposed ends of the works (B) and (C) close the fasteners. , Sequentially crimped and joined.

As shown in FIG. 7 (D), the right moving body (3)
When the movable head (1) of the moving body (3) on the left is stopped, the movement of the movable head (3) is stopped when it reaches a predetermined position.
1) is raised, then the left moving body (3) is moved to the overrun position, the movable head (11) is lowered again, and then the left and right movements are performed as shown in FIG. 7 (E). Body (3) (3)
Simultaneously move outward.

Then, due to the same action as described above with reference to FIG. 7C, the opposing ends of the works (B) and (C) close the fasteners from substantially the center toward both sides. Then, they are gradually crimped and joined.

As shown in FIG. 7F, the left and right moving bodies (3)
When (3) comes off both workpieces (B) and (C) outward and reaches the original retracted position, after stopping their movement there,
The movable heads (11) are raised to prepare for the next work.

8 and 9 show a second embodiment of the present invention. The same members as those in the first embodiment are designated by the same reference numerals and are not shown in the drawings, and detailed description thereof will be omitted.

In this example, of the plural pairs of rolling rollers (14) (15) arranged in the left-right direction, the inclination angle of the rolling roller (14) in the forward direction in the advancing direction at the time of pressure bonding work is also shifted to the rear side. The inclination angle is steeper than the inclination angle of the compaction roller (15).

By doing this, the front and rear workpieces
The opposing ends of (B) and (C) are first the rolling rollers located on the front side.
After being strongly attracted to each other by (14) and (14), the property can be stabilized and made uniform by the rolling rollers (15) and (15) located at the rear side.

In this example, the outer diameters of the guide roller (13) and the pressure roller (14) (15) on the fixed head (12) side are all larger than those on the movable head (11) side.

By doing so, the thread gauges from the reinforcing cord to the front surface and the thread gauges from the reinforcing cord to the back surface are different from each other in the work (B) (C) of the odd gauge type. It can optimally support crimping and joining.

That is, when the thread lower gauge of the works (B) and (C) is smaller than the thread upper gauge and the thread lower gauge side is difficult to draw, the thread lower gauge side has a large diameter rolling pressure on the fixed head (12) side. When it hits the rollers (14) (15), the work (B)
Both sides of (C) can be pulled inward uniformly.

In accordance with this, upper and lower roller compaction rollers
(14) Change the pitch and tooth profile of the uneven strips (19) (20) on the outer peripheral surface of (15), or on one or both of the upper and lower outer peripheral surfaces,
Modifications such as forming a single uneven line may be applied.

Further, as shown in FIG. 8, the fixed head (1
The guide roller (1) of the movable head (11) when descending is continuous with the guide plate (7) at the center of the upper surface of (2) and at the upper edge.
By providing a thin guide plate (22) with an escape groove (21) that fits in the central part of 3), the front and rear workpieces (B) and (C) can be evenly pressure-bonded to each other. You can

[0051]

According to the first aspect of the present invention, by simply moving the moving body in a predetermined traveling direction, the rolling ends of the sloping pressure roller in which the opposite ends of the plurality of works are in pressure contact with each other. Thus, they are attracted to each other and securely pressure-bonded to each other. Moreover, since the opposite ends of both workpieces are locally and gradually crimped and joined along the butting surfaces in a manner that closes the fasteners, the pressing force required at that time may be small and can be light. Work can be done smoothly and accurately. Furthermore, even when the thickness of both workpieces is large,
It can be effectively applied by slightly increasing the pressing force of the pressure roller against the work.

According to the second aspect of the present invention, by sandwiching the works from above and below by the compaction rollers, the opposite ends of the works can be strongly attracted to each other and the press-bonding can be surely performed.

According to the third aspect of the invention, when the front and back surfaces of the work are not the same and one of them is more difficult to draw than the other, when the work is performed so that the one that is hard to draw hits the large-diameter rolling roller, The front and back sides of can be pulled together almost uniformly.

According to the fourth aspect of the present invention, it is possible to stabilize and uniformize the properties of the joint portion of both works.

According to the fifth aspect of the present invention, after the opposing end portions of the two works are strongly attracted inward by the pressure roller located forward of the moving direction, they are joined by the roller roller located rearward. It is possible to stabilize and homogenize the properties of the part.

According to the sixth aspect of the present invention, the moving means moves the compacting roller to and from the workpiece so that the compacting roller can be applied to workpieces having different thicknesses, and the compacting roller can be pressed against the workpiece. The pressure can be adjusted.

According to the seventh aspect of the present invention, the uneven line is provided on the outer peripheral surface of the pressure roller, so that the frictional force with the work can be increased and the works can be strongly attracted to each other.

According to the invention as set forth in claim 8, it is possible to closely draw a portion close to the abutting portion of both workpieces and coarsely draw a portion far from the abutting portion, so that the workpiece pulling efficiency can be improved.

According to the ninth aspect of the present invention, the pair of pressure rollers can be rotated in synchronization with each other, thereby preventing the joint portion between the two works from being displaced in the longitudinal direction. it can.

According to the tenth aspect of the present invention, the guide plates can accurately guide the opposed end surfaces of the two works to a fixed position between the two compaction rollers.

According to the eleventh aspect of the invention, since the upper and lower portions of the moving body are connected to each other by the guide plate,
The whole moving body can be moved by one moving means, and it is not necessary to move the upper part and the lower part by separate moving means, or to provide a complicated linking means for circumventing the work laterally.

According to the twelfth aspect of the present invention, the two movable bodies are moved from the central portion of the facing portions of both workpieces toward both sides, and the opposing end portions of both workpieces are evenly balanced. Well, it is possible to gradually perform crimping bonding from the central portion toward both sides. When the two moving bodies are moved outward, a tensile force is generated at the opposite ends of both workpieces, and the tensile force is balanced between the left and right directions. There is no lateral displacement.

[Brief description of drawings]

FIG. 1 is a plan view schematically showing an embodiment of the present invention and conveyors before and after the embodiment.

FIG. 2 is likewise a front view.

FIG. 3 is likewise a front view of a moving body.

4 is a side view of the same as seen from the left side of FIG.

FIG. 5 is likewise a cross-sectional plan view taken along the line VV of FIG.

FIG. 6 is a partially cutaway plan view of one compacting roller.

FIG. 7 is likewise an explanatory diagram for explaining an operating procedure.

FIG. 8 is a front view of a main part of a moving body according to a second embodiment of the present invention.

FIG. 9 is likewise a cross-sectional plan view taken along the line IX-IX of FIG. 8.

[Explanation of symbols]

(A) Crimping and joining device (B) (C) Work (D) (E) Conveyor (CL) Center line (1) Support (2) Guide rail (3) Moving body (3a) lower part (3b) upper part (4) Screw shaft (5) Motor (6) Transport surface (7) Guide plate (8) Horizontal receiving piece (9) Column (10) Means of transportation (11) Movable head (12) Fixed head (13) Guide roller (14) (15) Rolling roller (16) (17) Tilt axis (18) Crown gear (19) (20) Uneven line (21) Escape groove (22) Information board

Claims (12)

[Claims] 1. At least one pair of rolling rollers adapted to roll while being in pressure contact with a portion of each of the workpieces adjacent to the abutting surfaces of a movable body that moves along the abutting surfaces of the plurality of workpieces. A crimping and joining device, characterized in that the rotation axis is mounted so as to be inclined so as to expand in a V-shape in a direction opposite to the traveling direction. 2. The crimping and bonding apparatus according to claim 1, wherein at least two pairs of vertically-opposed rolling rollers sandwich a portion of a plurality of works near the abutting surface from above and below. 3. The pressure bonding apparatus according to claim 2, wherein the outer diameter of the lower pressure roller is larger than the outer diameter of the upper roller. 4. The pressure bonding apparatus according to claim 1, wherein a plurality of pairs of rolling rollers are arranged side by side in the traveling direction on the moving body. 5. The crimping and joining apparatus according to claim 4, wherein the inclination angle of the pressure roller at the front of the traveling direction is made steeper than the inclination angle of the pressure roller at the rear of the traveling direction. 6. The crimping and joining apparatus according to claim 1, wherein the moving body is provided with a moving means for moving each of the pressure roller and the work piece into and out of contact with each other. 7. The pressure-bonding joining device according to claim 1, wherein an annular or spiral uneven strip is provided on the outer peripheral surface of each pressure roller. 8. The pitch of the ridges on the inner side of each rolling roller is smaller than the pitch of the ridges on the outer side.
The crimping and joining device described. 9. A crown gear is formed at an inner end of each of the pair of compaction rollers, and they are meshed with each other.
8. The pressure bonding apparatus according to any one of 8. 10. The moving body is provided with a thin plate-shaped guide plate which intervenes between opposed end surfaces of a plurality of works and positions the moving body and the end surfaces of the works. Crimping and joining device. 11. The crimping and bonding apparatus according to claim 10, wherein an upper portion and a lower portion of the moving body are connected to each other by a guide plate. 12. The method according to claim 1, wherein the two moving bodies for crimping work whose traveling directions are outwards are arranged so as to be movable along the abutting surfaces of a plurality of works. Crimping and joining device.