JPH0131449Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an improved tire take-out device configured in a tire vulcanizer, and in particular, by configuring a tire holding arm in conjunction with an existing take-out arm, it is possible to eliminate defects in peeling from the bladder. By being able to remove the tire accurately and efficiently regardless of the conditions, and by keeping the tire in an immovable position at all times, the conditions for transporting it to the next tire processing equipment are always stable, and in this way the vulcanization This was devised to ensure even more stable automation of the machine.

As is well known, in a tire vulcanizer, the vulcanized tire is lifted up together with the bladder to remove it from the lower mold, and then the bladder is contracted inward to release the tire from its tight contact with the tire. The device is configured so that it can be completely removed from the bladder by the ejecting device while only taking charge of the bladder.

In the above case, the bladder is pressed against the inner peripheral surface of the tire due to vulcanization molding, and in this case, since both are made of rubber, the tire has a portion that is pressed quite closely to the bladder side, and in this state, the bladder is pressed against the inner peripheral surface of the tire. Even if you try to separate them from the tire by stretching them up and down, it will be difficult for them to separate from each other.

At this point, the tire is taken out from the bladder by the take-out device, but since the take-out arm of the device only receives the tire from the bottom, the tire itself is simply placed on the arm. When the tire is taken out from the bladder and leaves a part of the tire in close contact with the bladder, the tire tilts slightly on the arm due to the force generated at this part when taken out. If it returns to its original position, a phenomenon occurs in which the center of the tire shifts from the center of the bladder, and if this becomes excessive rather than just a little, the tire often does not stay on the arm and falls out of the arm. Yes, especially when the tire is eccentric due to tilting as described above, it interferes with the top metal fitting of the bladder when the tire is later tilted and discharged, causing misalignment again or making removal itself difficult. . In this case, the tires would be transported to the next device called a post-inflator while being deviated from the normal trajectory on which they were taken out, so automation of this device would be hindered by the misalignment of the tires. be. Particularly in passenger car tire manufacturing technology which requires an expansion and cooling section after vulcanization, it takes too much time to start work, which may lead to defects in the tire itself.

This invention was devised to solve the above problem, and its purpose is to take out the vulcanized tire in a stable posture and transport it more accurately to the next device. To provide a tire take-out device for a tire vulcanizer, which ensures more stable automation of the vulcanizer and other equipment, the features here are as follows: In a device having a tire take-out arm that takes out a tire vulcanized by entering the tire in a horizontal direction, lifting it up, tilting it and sliding it, the tire is placed above the tire take-out arm 30 in a horizontal position along with the tire take-out arm 30. A tire restraining arm 28 that can enter while holding the tire is provided, and a restraining arm drive body 27 that pinches and releases the tire 29 from above and below between the tire restraining arm 28 and the tire take-out arm 30 is provided.

A detailed explanation will be given below using an example shown in the drawings.

Figures 1 to 4 show step-by-step the tire take-out operation of the tire take-out device, and Figures 5 to 9 show
The figure shows its specific operating mechanism.

In the drawings, reference numeral 1 indicates a desired number of lower molds arranged in parallel on a fixed base, which are of a twin type here, and as is well known, an upper mold 2 opposite to this is a twin type lower mold.
As shown in the figure, the lid is already in the open position.

Reference numeral 3 denotes a bladder made of a rubber cylinder centered on the lower mold 1, which has upper and lower rings 4 and 5, and whose form can be adjusted as is well known by means of a telescopic rod 6 in the center, and which can be raised and lowered as a whole in a timely manner. Be manipulated.

On the side of the tire take-out device for these, a desired number of main frames 7 for take-out formed as approximately rectangular plates are prepared, and this frame 7 is attached to each lower mold 1.
The tires are arranged vertically so as to face rearward (to the left in the figure) from the side portions of the tires, and when viewed from above, they are parallel to each other at the rear of each tire.

A main guide groove 8 is carved into each frame 7, and the main guide groove 8 has an L-shaped side surface formed by a horizontal groove on the lower side and a groove provided perpendicularly from the end of this groove closer to the mold. The projecting guide pin 9 is adapted to be guided reciprocatingly.

The pin 9 is the first pin provided inside the main frame 7.
The other end of the first link 10 is provided at the end of the link 10, and in this case, the other end of the first link 10 is pivotally supported at the lower end of the swing arm 12, which is swingably supported around the upper fulcrum 11 of the main frame 7. When the main cylinder 13 is extended, the first link 1
0, the guide pin 9 moves forward horizontally.

On the other hand, this guide pin 9 is connected to the tip of a movable bracket 14, and moves this bracket 14 along with it. The bracket 14 is raised while maintaining a constant posture by a second link 15 (constituting a parallel link with the first link 10) connected to its top.
Also, at the upper limit, a rotation operation is performed. For this reason, another fulcrum 16 is set at the upper part of the main frame 7, and the third link 17 pivoted around this fulcrum is the turning cylinder 18.
It is not as if it is double-acted by the same third link 1.
A pivot shaft 19 is provided at the other end of the fourth link 7, and the upper end of a long fourth link 20 is pivotally connected to the pivot shaft 19. A fifth link 21 is pivotally supported between the lower end portion of the fourth link 20 and the first link 10, and together with this, the sixth link 22 is connected to the second and fourth links 1.
5 and 20 as well as a common pivot point of the first link 10 and the swing arm 12, respectively.

In this way, the posture of the movable bracket 14 is determined, and in order to always maintain a constant posture with the movable bracket 14, a single horizontal mounting shaft 23 is inserted into the back end of the bracket 14, and this is parallel to the movable bracket 14. Other brackets 14 lined up are also connected together. This mounting shaft 23 has
A restraining arm guide 24 is erected and fixed in parallel with each bracket 14, and a pair of lifting rollers 26, 26 that freely rotate in pairs vertically are adapted to this vertically formed lifting guide groove 25. As these are raised and lowered by the double action of the holding cylinder 27, a pair of front-extending tire holding arms 28 attached with the rollers 26 and 26 as their base ends are placed at two positions on the left and right sides of the upper surface of the tire 29, respectively. In this case, a mounting shaft 2 is provided on the lower side of each arm 28.
An overhanging take-out arm 30 is similarly fixed around the 3rd circumference.
A pair of idling rollers 31 are respectively provided on the take-out arm 30 here.

Reference numeral 32 designates a receiver for a stopper 33 protruding from the movable bracket 14, which is provided on the main frame 7 side, and this receiver 32 is used as a limit switch. Further, the reference numeral 34 shown in the fifth figure is a synchronization mechanism for achieving synchronization between parallel molds in a parallel mold type. Also, on the right side outside each figure, there is a conveyor 3.
A post inflator is connected via 5.

Therefore, according to the above configuration, in the standby position shown in FIG. 5 (phantom line in FIG. 1), the take-out arm 30 is horizontal and stands by as a two-fork type for one tire 29, and this In this case, the upper restraining arms 28 respectively face upwardly. In this way, the tire 29 with three bladders is lifted up and removed from the lower mold 1 as shown by the arrow, and the three-bladder tire 29 is removed from the lower mold 1 as shown in the sixth figure.
is contracted and expanded upward.

When the main cylinder 13 operates in response, the swing arm 12 swings, causing the guide pin 9 to move.
moves forward in the main guide groove 8, and along with this, the movable bracket 14 and the extracting/retaining arms 28, 30 that can accompany it move forward. Although the fourth link 20 swings as shown in FIG.
30 moves forward in a horizontal position.

1 and 6 show a state in which both arms 28, 30 have completed their forward movement, and this state is reached just before the tire 29 leaves the Prada 3. In this case, the tire 29 rests on the two-piece take-out arm 30 applied from the bottom side, and together with this, the holding arm 28 that has been raised in advance is moved down to hold down the top surface of the tire 29. It is said that In this case, the tire 29 maintains a stable position where it is sandwiched from above and below, and is raised in this state, and at the same time, the bladder 3 is lowered and removed.

When separating from each other in this way, the tires 2
Since the tire 9 itself maintains a completely immovable posture, even if some defective peeling remains between the tire 29 and the bladder 3, the force generated by this will not cause the tire 29 to move blindly such as tilting. It can be brought up to the upper limit while remaining concentric with the center of bladder 3.

When the upper limit is reached as shown in FIGS. 3 and 7, the turning cylinder 18 is pulled for the first time, and at the same time, the restraining arm 28 is released, thereby moving the rearward position as shown in FIGS. 4 and 8. The post inflator is transported to the next post inflator via the transport conveyor 35 in its normal position.

In this case, the fixed point is the guide pin 9, which is made up of the swing arm 12 and the first link 10, which have obtained a fixed state, and the fourth link 20 is pulled and is connected to the guide pin 9 via the fifth and sixth links 21 and 22. 2 links 1
5, the movable bracket 14 is tilted rearward about the fixed point. At the same time, both arms 28 and 30 attached to the mounting shaft 23 system are also synchronized, and the tire 29 is ejected rearward. When the tire 29 is taken out by this backward tilt, the tire 29 maintains a concentric relationship with the bladder 3 until it reaches its upper limit, so that its positional relationship with the bladder 3 is always in a normal constant state, and therefore the upper ring 4 of the bladder
There is no risk of the inflator coming into contact with the inflator and moving blindly, or getting caught and becoming unable to take it out, so that it can be transported to the next inflator on a normal trajectory and immediately processed within the device. In these cases, the return operation is performed by the reverse operation.

In another example shown in FIG. 10, the main cylinder is divided into a horizontal advance/retreat cylinder 36 and a vertical lift cylinder 37. More specifically, the bottom part on the fixed base 38 side A cylinder 36 for horizontal advancement and retreat is extended from the cylinder 36, and the guide par 3
A base 40 at the rear end is movable back and forth via a bracket 9, and a movable bracket 1 erected on this base 40
4 is formed with a guide groove 41 in its longitudinal direction, and another elevating bracket 43 is constructed for rollers 42, 42 that fit into the groove 41 at two points. The bracket 43 is also raised and lowered by the lifting cylinder 37 via the interlocking link 44, whereby the ejecting arm 30 whose base end is attached to the mounting shaft 23 at the rear end of the lifting bracket 43 and the holding arm guide 24 move together. be raised and lowered.

The same guide 24 has a restraining arm 28 as described above.
It is equipped with In this way, when the vehicle first moves forward toward the tire and receives the tire, the restraining arm 28 moves down from above to restrain it and then rises vertically.Up to this point, the vehicle has an L-shaped trajectory as described above. From the upper limit, it does not immediately fall back, but retreats horizontally while remaining in a restrained state, and when it reaches just above the conveyor 35 provided at the starting point, it is lowered vertically, and here the restraining arm 28 The arm 28 lifts the conveyor 35 while releasing the tire.
The target tire is placed on the conveyor 35 by being lowered a little further than the conveyor 35, and is brought onto the carry-in conveyor 45 by its own electric power.

In this example, the tire remains stable from beginning to end due to the restraint arm 28, and in particular, the tire can be reliably transported to a location fairly close to the post inflator using a mouth-shaped trajectory that combines two L-shaped tires. It is something that we have.

This invention is as described above, and by configuring the tire holding arm together with the existing take-out arm, the tire can be removed accurately and efficiently without the problem of separation from the bladder. Moreover, by ensuring that the tire remains in an immovable position at all times by pressing down, the state of transport to the next tire processing equipment is always stable, and in this way, it is possible to ensure even more stable automation of the vulcanizer. be.

The restraining arm 28 may be of a swing type or a type in which the tip of the arm is guided.
8 itself may be constructed of a single flat plate, a part of which has stabilizing protrusions, or a doughnut-shaped, elliptical or similar shape corresponding to the tire 29. In addition, for the main guide groove 8, there are cases where an L-shaped trajectory or the like is adopted in addition to the L-shaped one, and in the example shown in the 10th figure, the main guide groove 8 is a straight line from the uppermost position to the standby state via the L-shaped trajectory. A route returning via the target (slope) line can also be configured.

[Brief explanation of the drawing]

1 to 4 are side views of a tire take-out device showing an example of this invention at each take-out stage, FIG. 5 is a side view of an embodiment of the tire take-out device in a standby state, and FIG. 6 is an arm FIG. 7 is a side view of the device showing the advancing state in a relationship corresponding to FIG. 1, FIG. 7 is a side view of the device showing the operating state when the tire is raised in a relationship corresponding to FIGS. 2 and 3, and FIG. 8 is a side view of the device when the tire is tilted. FIG. 9 is a side view of the device showing the state of the device in a relationship corresponding to FIG. 4;
The figure is a schematic plan view of the device in an arm standby state, and FIG. 10 is a side view of the device showing another embodiment. 1... Lower mold, 2... Upper mold, 3... Bladder, 28... Tire holding arm, 30... Tire take-out arm.

Claims (1)

[Scope of Claim for Utility Model Registration] A tire take-out arm that takes out a tire vulcanized in the upper and lower tire molds by entering in the horizontal direction, lifting it up, tilting it and sliding it, the tire take-out arm 30; A tire holding arm 28 that can enter while maintaining a horizontal posture together with the tire take-out arm 30 is provided above the opposing arm, and the holding arm 28 pinches and releases the tire 29 from above and below between the tire holding arm 28 and the tire take-out arm 30. A tire take-out device in a tire vulcanizer, characterized in that a drive body 27 is provided.