JPH1135127A - Conveyor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a conveyor device to be cheaply manufactured and easily used even in a narrow space by incorporating conveyors having different functions into one conveyor device. SOLUTION: In the carrying-out conveyor device 8, a conveyor frame 93 which can be raised and lowered through plural lifting and lowering cylinders 91 and guide rods 92, are installed on a base plate 90. A horizontal roller conveyor 95 which can reciprocate horizontally through a driving device, is installed on the conveyor frame 93. Below the horizontal roller conveyor 95, plural split roller conveyors 97 which are installed longitudinally at specified intervals, and which can be raised and lowered through plural lifting and lowering cylinders 96, are installed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor device, and more particularly, to a conveyor device used in a manufacturing process of a long molded product such as a rubber crawler, for carrying in and out of the molded product. The present invention relates to a conveyor device which is easy and has improved workability.

[0002]

2. Description of the Related Art Conventionally, in the production process of a long molded product such as a rubber crawler, when a molded product formed by a vulcanizing press is taken out of the device and taken out to the next process, the molded product is taken out. Conveyor and a conveyor for carrying out to the next process were separately installed.

[0003]

However, installing a plurality of conveyors having different functions in a straight line increases the cost and makes it difficult to install them in a fixed space. The purpose of this invention is
An object of the present invention is to provide a conveyor device in which conveyors having different functions are integrated into one unit, which can be manufactured at low cost, and which can be easily used even in a small space.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention has a conveyor frame which can be moved up and down on a base plate, and a roller conveyor which can be reciprocated in a horizontal direction via a driving device on the conveyor frame. And a plurality of vertically movable divided roller conveyors installed at predetermined intervals in the longitudinal direction of the conveyor frame.

[0005] As described above, by incorporating conveyors having different functions movable in the horizontal direction and the vertical direction into one conveyor apparatus, the cost can be easily reduced and the installation space can be reduced.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a front view of all steps of a continuous vulcanizing apparatus for sequentially and continuously forming a long product such as a rubber crawler according to the present invention, and FIG. 2 is a plan view of FIG. The continuous molding vulcanizing apparatus includes an unwinding device 1 in which a plurality of steel cords are wound around a reinforcing cord tensile body W in which a rubber material is coated, and a molding process side (arrows) installed immediately after the unwinding device 1. X-direction)
The tension applying device 2 and the second tension applying device 4 installed immediately before the molded product take-up device 3 are configured to apply a predetermined tension to the reinforcing cord tensile member W.

[0007] The tension of the reinforcing cord tension member W adjusted by the first tension applying device 2 and the second tension applying device 4 is, for example, when the molded product Qx is released from the mold and when the molding material Wa is assembled. 10-30KN during supply, 50-90K during vulcanization
N is set.

First tension applying device 2 and second tension applying device 4
In between, the stretched reinforcing cord tensile body W is sandwiched,
A preforming device 6 for assembling a molding material Wa such as a laminated cover rubber sheet supplied from a molding material supply device 5 on the upper and lower surfaces thereof to perform preforming, and a preformed elongated preformed product A vulcanizing press device 7 for vulcanizing and integrally molding Q, an unloading conveyor device 8 for unloading the molded product Qx from the vulcanizing press device 7, the second tension applying device 4, and a molded product taking-off device 3. Are arranged substantially linearly.

[0009] Behind the molded product take-up device 3, a conveyor 9a for transporting a long molded product Qx formed in a belt shape.
And a vulcanizing connection device 9 for vulcanizing and connecting both ends of the long molded article Qx conveyed in a loop.

The reinforcing cord tensile member W is a belt-like member in which a plurality of steel cords arranged in parallel are coated with a rubber material, and the unwinding device 1 includes a long reinforcing cord tensile member W. Is wound around a forming drum 10 via a resin film-shaped liner R, and the reinforcing cord tensile member W unwound from the forming drum 10 is passed through a guide roller 11, a pinch roller 12, and a pressing device 13, The unwinder 1 is unwound toward the tension applying device 2 and the liner R is sequentially wound around the liner drum 10a.

The pressing device 13 includes a fixing plate 14
And a movable plate 16 that moves up and down via a cylinder 15. The press device 13 is used for vulcanizing the terminal of the reinforcing cord tensile member W. next,
As shown in FIGS. 3 to 5, the first tension applying device 2 includes a tension applying cart 19 movable on two parallel guide rails 18 laid on a base 17 via a reciprocating drive device 20. It is mounted so that it can reciprocate.

In the reciprocating drive device 20, a chain 22 is hung around a driving sprocket 21a and a driven sprocket 21b disposed at the front and rear portions between the guide rails 18, and a part of the chain 22 is connected to a tension applying carriage 19. The tension imparting carriage 19 is moved along the guide rail 18 via the chain 22 by the rotational driving force of the drive motor 23.

A brake rod 24 is installed in the center between the guide rails 18 along the longitudinal direction, and a pair of left and right brake shoes 2
Brake means 2 comprising a cylinder 5 and a clamp cylinder 26
7 clamps both side surfaces of the brake rod 24 so as to sandwich the same, and the tension applying carriage 19 is stopped and fixed at a predetermined position on the guide rail 18.

A lower holding plate 28a for holding the upper and lower surfaces of the reinforcing cord tension member W and an upper holding plate 28b for raising and lowering via an elevating device 29 such as a hydraulic cylinder are opposed to each other on the tension applying carriage 19 in the vertical direction. The lifting cylinders 30a, 30
b, the guide roller 31a of the reinforcing cord tensile member W,
31b is installed.

The lower holding plate 28a, the upper holding plate 28b, the lifting device 29 and the lifting cylinder 30
a, 30b are the guide rails 3 via the cylinder 30;
The tension is applied to the reinforcing cord tensile body W by sliding on the upper side 0c. The preforming device 6 is shown in FIGS.
As shown in FIG. 8, before the vulcanizing press 7 on the conveying line SS of the reinforcing cord tensile member W linearly stretched, the vulcanizing press 7 is formed linearly with the conveyer device. 32
Is installed, and the molding conveyor device 32
It is movable in a direction Sx orthogonal to -S.

In the forming conveyor device 32, a belt conveyor 34 is installed on a conveyor frame 35 via an elevating means, and the belt conveyor 34 is a gear motor 33.
, And is installed so as to be able to move up and down by a cylinder 36 and a link mechanism 37 constituting the elevating means. The conveyor frame 35 is mounted on three parallel guide rails 38 laid in a direction Sx orthogonal to the transport line SS of the reinforcing cord tensile member W so as to be able to reciprocate via running wheels 40 and a gear motor 39. Is placed.

On the side of the preforming position K in the direction Sx orthogonal to the conveying line SS, a molding material for supplying a molding material such as an upper and lower cover rubber sheet cut to a fixed size on a belt conveyor 34 of a molding conveyor device 32. A material supply device 5 is provided, and a material transfer device 41 for transferring a molding material such as a core metal or a rubber sheet onto the belt conveyor 34 is provided on the side and upper portion of the preforming device 6. I have.

As shown in FIGS. 9 and 10, the molding material supply device 5 is composed of three rolls 42a, 42b, which are formed by winding a long rubber sheet material Wa with a liner R interposed therebetween.
42c, a belt conveyor 43 for transporting the respective rubber sheet-like materials Wa unwound from below the rolls 42a, 42b, 42c in a stacked state, and a pinch roll installed at the unloading end of the belt conveyor 43. And the like, and a fixed-size cutting device 45 for cutting the laminated rubber sheet material Wa into a fixed size.

As another embodiment of the molding material supply device 5, as shown in FIG. 11, three rolls 42a, 42b, 42 wound around a long rubber sheet material Wa.
c, the respective rubber sheet-like materials Wa unwound from above are sequentially laminated and pressed through a centering device 46, a guide roller 47 and a pressing device 48, and finally passed through a pressing device 49 such as a pinch roll. The three laminated rubber sheet materials Wa may be cut to a fixed size by a cutting device (not shown) and placed on the belt conveyor 34 waiting at the preforming position K.

As shown in FIG. 12, the material transfer device 41 is provided on the side of the forming
4. A plurality of transfer carts 5 for placing and transferring metal molding materials such as metal cores, block-shaped rubber materials, etc. along the longitudinal direction of 4
0a and a plurality of transfer carts 50b for mounting and transferring a rubber molding material and the like.

Further, above the forming conveyor device 32,
As shown in FIGS. 13 and 14, a gate-shaped crane traveling frame 51 is installed,
A support frame 54 is movably mounted on two traveling drive racks 52 installed on the vehicle 1 via a traveling motor 53, and a traveling drive rack 55 laid on the support frame 54 has a support frame 54. A crane 57 that can reciprocate in a direction orthogonal to the traveling direction of the support frame 54 via a traversing drive motor 56 is mounted.

On the crane 57, suction holding means 58 such as a vacuum pad which can move up and down to suck and hold the molding material is suspended.
The metal molding material, the block-shaped rubber material, the rubber molding material, and the like placed on the a and 50b are adsorbed and sequentially lifted. It is to be placed on.

FIG. 15 shows another embodiment of the crane 57. As a means for holding a metal molding material, a block-shaped rubber material, a rubber molding material, and the like placed on the transfer carriages 50a and 50b, The molding material may be clamped and held using a clamp claw 60 instead of the suction holding means 58 such as a vacuum pad, and may be transported to a predetermined position. Other configurations are the same as those of the above-described embodiment, and therefore, the same reference numerals are given and the description is omitted.

The vulcanizing press 7 of the molding conveyor 32
In the vicinity of the side, as shown in FIGS. 6 and 7, an induction heating device 61 (preheating device) for preheating the preformed elongated preform Q is provided. The induction heating device 61 (preliminary heating device) is composed of a coil and a power supply unit. By causing the body W to generate heat, the temperature of the rubber molding material Wa is preliminarily heated from the inside, and the vulcanization time in the vulcanizing press device 7 in the next step is shortened.

For example, as an embodiment, the total thickness is 120 mm
Then, using a material having a vulcanization rate of T35 = 45 minutes (135 ° C. conversion) of the steel coat rubber at the center where the temperature rises the slowest, the center is brought to a temperature as shown in Table 1 below by induction heating. Preheating was performed, temperature control was performed by a press at 150 ° C. (160 ° C. in Comparative Example 2), and a time exceeding 135 in terms of 135 ° C. was set as a vulcanization time.

[Table 1]

As described above, the vulcanization temperature of the molded product is 150 ° C.
By preheating to 90 ° C to 110 ° C in advance, the vulcanization time can be reduced by 30% to 47%, and workability and productivity can be greatly improved. Also, problems such as early vulcanization and adhesion can be solved.

As the induction heating device 61, a known induction heating method is used, and electric energy is transmitted to a heating material (conductor, for example, an induction coil) by electromagnetic induction (current is induced).
Then, the heating material itself converts the electric current into Joule heat. In this induction heating, Joule heat is generated in the heating material itself, similarly to the direct current heating.

As the above preheating method, the induction coil (not shown) of the induction heating device 61 is connected to the forming conveyor device 3.
2 between the belt conveyor 34 and the vulcanizing press 7 and at least one of the upper and lower parts of the conveying line SS of the preformed product Q, and the preformed product Q It is preferable to preheat the steel sheet by drawing it into the vulcanizing press device 7, but an induction coil is installed at an upper portion between the belt conveyor 34 and the vulcanizing press device 7 so that the induction coil is moved and the core metal side is moved. It is also possible to pre-heat from.

Next, a vulcanizing press device 7 for vulcanizing and forming a preform Q stretched and supported by a reinforcing cord tensile body W as shown in FIGS. A lower mold 64 (lower mold) that can be moved up and down through a plurality of cylinders 63 and an upper mold 66 (upper mold) that can be moved up and down through a plurality of press cylinders 65 are installed at opposing positions. The lower die 64 and the upper die 66 are provided with a heating plate (not shown).

The main cylinder 65 is about 2,000
It is used at the time of pressurization of 0 ton, and an auxiliary cylinder 65a is provided between the auxiliary cylinder 65a to assist when the main cylinder 65 is raised and lowered. At the front and rear portions of the vulcanizing press device 7, a pair of molded product peeling devices 67a for pulling up the vulcanized molded product Qx from the lower mold 64 via the reinforcing cord tensile members W connected front and rear. , 67b.

A molded article peeling device 67a on the side where the preformed article is carried in
As shown in FIGS. 19 and 20, the rotatable free roller 6 is mounted on two vertically-supported support frames 68.
Table 9 having an upper surface 9 and a pressing roller 7
1 and a horizontal frame 72 suspended therefrom is mounted so as to be able to move up and down. The horizontal table 70 is provided with rods of lifting cylinders 74 a and 74 b erected on both sides of an upper frame 73 erected above two support frames 68. The upper frame 73 is connected to a rod 76 a of a holding cylinder 76 erected at the center of the upper frame 73.

The reinforcing cord tension member W connected to the molded product Qx is lifted by a free roller 69 attached to a horizontal table 70, and adheres to the upper die 66 when the upper die 66 rises. The reinforcing cord tension member W is peeled off by the pressing cylinder 76 and the pressing roller 71. Also, the lifting cylinders 74a, 74b
Operates when the reinforcing cord tensile body W is taken off and when the molded product Qx is released from the mold.

Further, the molded article peeling device 67b installed on the molded article unloading side of the vulcanizing press device 7 is provided with a molded article peeling device 67b shown in FIG.
As shown in (b), a frame 79 in which a rotatable free roller 78 is disposed on two vertically supported support frames 77, a driving roller 81 and a holding roller mounted via a bracket 80. 82 and a horizontal frame 83 suspended therefrom are attached so as to be able to move up and down.
Pull-up cylinders 85a, 8 erected on both sides of an upper frame 84 erected above the two support frames 77
5b connected to the rod 86, and the horizontal frame 83
Are connected to a rod 87a of a crimping cylinder 87 erected at the center of the upper frame 84.

The drive roller 81 has two support frames 7.
The drive motor 89 is mounted on a support base 88 provided between the drive wheels 7 and is rotatably driven via a transmission mechanism 90 including a plurality of sprockets and chains. The reinforcing cord tensile member W connected to the molded product Qx is attached to the free roller 78 attached to the frame 79.
When the upper die 66 is lifted, the reinforcing cord tensile member W attached to the upper die 66 is separated by the pressing cylinder 87 and the pressing roller 82. The pull-up cylinders 85a and 85b operate when the reinforcing cord tensile body W is pulled off and when the molded product Qx is released.

Next, as shown in FIGS. 22 and 23, an unloading conveyor device 8 for unloading the molded product Qx from the vulcanizing press device 7 is provided on a base plate 90 via a plurality of lifting cylinders 91 and guide rods 92. The conveyor frame 93 which can be moved up and down is installed.
3, a horizontal roller conveyor 95 capable of reciprocating in a horizontal direction via a driving device 94 is installed. Below the horizontal roller conveyor 95, a plurality of horizontal roller conveyors 95 are installed at predetermined intervals in the longitudinal direction. A plurality of divided roller conveyors 97 which can be moved up and down via the elevating cylinder 96 are installed.

As shown in FIG. 23, a driving device 94 for reciprocating a horizontal roller conveyor 95 in a horizontal direction is attached to a pinion 99 which is driven to rotate by a driving motor 98 and a support frame 93 which is engaged with the pinion 99. And a driving force transmission mechanism 104 composed of a sprocket 101, a chain 102, and a connecting rod 103 by rotation of a driving motor 98.
, The pinion 99 is driven to rotate to reciprocate the horizontal roller conveyor 95 in the horizontal direction.

The split roller conveyor 97 is configured to move up and down individually or simultaneously via a plurality of lifting cylinders 96 vertically mounted on the conveyor frame 93, and to control the operation of each lifting cylinder 96. (Not shown) (for example, a photoelectric tube or the like) are respectively attached.

Next, as shown in FIGS. 24 to 28, the second tension applying device 4
On a pair of parallel guide rails 105 laid along the transport direction of the x and the reinforcing cord tensile body W, a portal-shaped frame 106 movable along the guide rails 105 is placed, The frame 106 is connected to a hydraulic cylinder 107 attached to the base frame 104 via a load cell 108, and the hydraulic cylinder 107
Is reciprocated by the operation of.

A cord clamping device 109 for clamping the reinforcing cord tensile member W and a product clamping device 110 for clamping the vulcanized molded product Qx are attached to the movable gate-shaped frame 106. A reinforcing cord tensile member W and a vulcanized molded product Qx are provided at the front and rear portions of the cord clamping device 109 and the product clamping device 110.
Device 11 with guide roller 111 for raising and lowering
2a and 112b are provided. This lifting device 112
Reference numerals a and 112b each include an air cylinder 113 vertically attached to a lower portion of the frame 106 and a free guide roller 111 horizontally attached to a tip of a rod 113a of the air cylinder 113.

The cord clamp device 109 installed on the product carry-in side is provided with a fixed clamp member 114 fixed on a support plate 106a below the gate-shaped frame 106.
And a movable clamp member 116 which is attached to the fixed clamp member 114 at a position opposite to the fixed clamp member 114 via a clamp cylinder 115 so as to be able to move up and down. As shown in (1), the movable clamp member 116 is lowered by operating the clamp cylinder 115, and the reinforcing cord tensile member W is clamped and fixed between the movable clamp member 116 and the fixed clamp member 114.

The product clamp device 110 installed on the product carry-out side includes a lower clamp member 117 attached to the lower part of the gate-shaped frame 106 via a lift cylinder 120 and a support plate 106a so as to be liftable. An upper movable clamp member 119 is attached to a lower position of the lower clamp member 117 via a product clamp cylinder 118 so as to be movable up and down.

The lower clamp member 117 and the upper movable clamp member 119 are formed so that the shapes of the lower surface and the upper surface of the molded product Qx fit.
Then, when clamping the molded product Qx, as shown in FIG. 27, the product clamp cylinder 118 is operated to lower the upper movable clamp member 119, and the molded product Qx is moved between the lower clamp member 117 and the upper movable clamp member 119. It is clamped and fixed.

When tension is applied to the reinforcing cord tensile member W while the reinforcing cord tensile member W and the molded product Qx are sandwiched and fixed, the hydraulic cylinder 107 is extended to form the frame 106. The transport side of the product Qx, ie, FIG.
By moving along the guide rail 105 in the direction of the arrow 4, the tension can be set to the set value. Adjustment of the tension is performed by a load cell 108 attached to the tip of the hydraulic cylinder 107.

Further, the reinforcing cord tensile member W and the molded article Qx
In order to transport the reinforcing cord tensile member W and the molded article Qx to the next step after the tension is adjusted by holding the movable clamp member 116 and the upper mold movable clamp member 119, the clamp state in which the movable clamp member 116 and the upper mold movable clamp member 119 are respectively raised is set. By releasing the lifting device 112a and 112b in this state,
The reinforcing cord tensile member W and the molded product Qx that are in close contact with the fixed clamp member 114 and the lower mold clamp member 117 are peeled and raised.

Next, the molded article pick-up device 3 is shown in FIGS.
As shown in FIG. 1, the roller frame 122 disposed on the gantry 121 in the transport direction (the direction of the arrow) of the molded product Qx
A plurality of parallel and horizontal drive rollers 123 are rotated via a drive motor 124, and the width of the molded product Qx is set at a position where the loading side and the unloading side of the molded product Qx of the gantry 121 are opposed to each other. The determining rollers 126a and 126b are provided via a movement adjusting mechanism 127.

Further, two sets of roller support members 131a and 131b which can be moved up and down via a cylinder 129 and a guide rod 130 are horizontally mounted on the front and rear of a support frame 128 provided on the roller frame 122. A plurality of drive rollers 133, which are rotationally driven via drive motors 132a and 132b provided on the roller support members 131a and 131b, are horizontally mounted on the support members 131a and 131b.

The molded article Qx which has been molded and conveyed is
The drive motor 124 and the drive motor 13 are sandwiched between the drive roller 123 on the roller frame 122 and the plurality of drive rollers 133a and 133b which can move up and down.
The molded product Qx is picked up at a constant speed by the rotational driving forces 2a and 132b, and sent out to the next process.

Next, the vulcanization connection device 9 connected to the rear of the molded product take-up device 3 via the conveyor 9a is shown in FIG.
37, the bet 1 of the C-shaped frame 140 is
A lower frame 144 on which a lower die 143 provided with a heating means 142 such as a heating plate is mounted, and an upper frame 146 having a C-shaped cross section on which an upper die 145 that can be raised and lowered is mounted.
Are integrally connected via a connection frame 147.

The upper mold 145 provided with the heating means 142
May be fixed, and the lower mold 143 may be configured to be able to move up and down via an elevating cylinder 143a as in the embodiment of the present invention.

At the time of pressurizing, that is, the lower die 143 and the upper die 145
In order to prevent the opening X of the upper frame 146 and the lower frame 144 from opening when the product is pressurized, a mouth opening prevention device 170 is provided.

The lower frame 144 includes a cylinder 14
A table 148 that can be moved horizontally is provided on the opening X side of the frame 146 via the opening 8a. On this table 148, clamping means 149a and 149b for clamping or unclamping both ends of the lower mold 143 are provided. It is.

The upper mold 145 attached to the upper frame 146 is a mold supporting member 1 supported by the ram 150.
The mold supporting member 151 is detachably attached to the base 51 via clamping means 152a and 152b, and includes a pressurizing cylinder 153 and two lifting / lowering auxiliary cylinders 153a and 153.
b and a plurality of the racks 154 are supported by the upper frame 146 via a tuning rack 154 when moving up and down. Note that 15
5 is a guide member for the mold support member 151.

In the opening prevention device 170, two lifting means 157a and 157b such as a lifting cylinder are attached to the side surface of the upper frame 146 via a supporting member 156. The lower end of the lifting means 157a and 157b has a lower end. Connecting rods 159 with concave locking portions 158
The two connecting rods 159a and 159b are connected to a pair of guide rods 160a and 160b supported by the support member 156. 161 are connecting rods 159a, 159b
Is a stopper attached to the upper end of the.

Further, the side surface of the lower frame 144 is engaged with a concave locking portion 158 formed at the lower end of the connecting rods 159a and 159b to connect the connecting rod 159.
a, 159b for locking by locking
2 are provided. The lock mechanism 162 is provided in the holder 1 in which the lower ends of the connecting rods 159a and 159b are fitted.
63 is provided with a locking member 164 that can move forward and backward in the horizontal direction to engage with the concave locking portion 158, and connect the upper frame 146 and the lower frame 144 to the connecting rods 159a and 159b and the lock mechanism during pressing. Locking is carried out via 162 so as to prevent the opening P between the upper frame 146 and the lower frame 144 from being opened during pressurization.

Also, at the time of pressurization, a connecting frame 147 for connecting the upper frame 146 and the lower frame 144 is connected.
And the extension of the connecting rods 159a and 159b and the extension of the guide rods 160a and 160b are set to be the same. Table 1 provided so as to be able to reciprocate toward opening P side of frame body 140 having a C-shaped cross section
At both ends in the longitudinal direction of the 48, a turnable clamp means 171 for fixing the vicinity of both ends of a long molded product Qx (crawler in this embodiment) on a table 148.
a, 171b are provided.

The clamping means 171a and 171b are
As shown in FIG. 33 and FIGS.
8 is fixed at both longitudinal ends thereof via brackets 172, and a molded product Q is attached to the pivot center shaft 173.
A pivotable fixing plate 174 for fixing the vicinity of both ends of x on the table 148 is attached.

The base end of the fixed plate 174 is connected to a rod 176 of a pressing cylinder 175 fixed to the side surface of the table 148, as shown in FIGS. 36 and 37.
By extending the rod 176 of the pressing cylinder 175, the fixing plate 174 is swiveled onto the table 148, and the vicinity of both ends of the molded product Qx is pressed and fixed on the table 148.

Below the table 148, a conveyor 1 which can reciprocate toward the opening P side of the frame body 140 and movably supports a long molded product Qx.
77 is provided, and the conveyor 177
1 and is connected to a reciprocating cylinder 178 provided in the apparatus. In addition, 179 is a control device for controlling the vulcanization connection device 9, and 180 is an upper tank installed on the upper frame 146.

The vulcanizing connection device 9 is configured as described above, and connects both ends of the long molded product Qx conveyed to the lower front of the opening P side of the C-shaped frame body 140. It is folded upward and superimposed on the lower mold 143 on the table 148 which has been drawn out to the front side of the frame body 140 in advance, and the molded products Qx located at both ends in the longitudinal direction of the table 148 are fixed by the clamp means 171a and 171b. Let it.

In this state, the table 148, the conveyor 17
7, the molded product Qx is moved into the concave portion of the C-shaped frame main body 140, and the lower die 143 on the table 148,
The both ends of the molded product Qx are vulcanized and joined by hot pressing with the upper die 145 placed on the lower die 143 to form an endless shape.

In the embodiment of the present invention, the opening prevention device 170 is provided on the opening side of the frame main body 140.
Moreover, at the time of pressurization, the connecting frame 147 connecting the upper frame 146 and the lower frame 144, the extension of the connecting rods 159a and 159b, and the guide rods 160a and
By setting the extension of 160b to be the same,
During the vulcanization press, the connecting rods 159a and 159b prevent the opening side of the frame body 140 from opening in the vertical direction, so that pressure molding can be performed while maintaining a uniform pressing force, and the molding accuracy of the molded product can be improved. Can be improved.

Next, the molding step of the continuous molding method for a long product using the above-described continuous vulcanization molding apparatus is shown in FIG.
This will be schematically described with reference to FIGS. And FIG.
This will be specifically described with reference to flowcharts in FIGS. First, as shown in FIG.
The tension cord W is unwound from the first tension applying device 2 installed immediately after the unwinding device 1 and the second tension applying device 4 installed immediately before the molded product take-up device 3 with a constant tension. And stretched linearly.

Then, on a preforming device 6 (not shown) installed on the side of the first tension applying device 2, a molding material supply device is attached to the upper and lower surfaces of the reinforcing cord tensile member W stretched with the constant tension. The molding material Wa of the molded product Qx (rubber crawler) supplied from 5 (not shown) is assembled to form the preformed product Q.

Then, the assembled preformed product Q is carried into the vulcanizing press 7 while being supported by the reinforcing cord tensile member W, and is molded and vulcanized.
As shown in (b), the preforming device 6 forms the preformed product Q by assembling the molding material Wa of the next molded product Qx to the reinforcing cord tensile member W.

After vulcanization molding of the molded product Qx is completed by the vulcanizing press device 7, the molded product Qx supported by the reinforcing cord tensile member W is removed from the vulcanizing press device 7 by the molded product peeling device 67.
a and 67b, the mold is lifted by releasing, and the horizontal roller conveyor 95 of the discharge conveyor device 8 is conveyed into the vulcanizing press device 7, and the molded product Qx is placed on the horizontal roller conveyor 95 (FIG. 38 (c)).

Then, the molded product taking-up device 3, the preforming device 6 and the unwinding device 1 are operated on the horizontal roller conveyor 95 and the divided roller conveyor 97 of the unloading conveyor device 8 in synchronization with each other, so that the molded product Qx is formed. Pre-formed product Q pre-formed at the same time as it is pulled out from the vulcanizing press 7
Is carried into the vulcanizing press 7 (see FIG. 38 (d)).

The molded product Qx stretched with a constant tension drawn out by the unloading conveyor device 8 is sequentially conveyed to the second tension applying device 4 and the molded product take-up device 3 side as shown in FIG. The molded product Qx is cut from the reinforcing cord tensile member W in the previous step of the vulcanization connection device 9, and the molded product Qx carried into the vulcanization connection device 9 is vulcanized and connected at both ends in a loop shape. Is completed.

As described above, the molded product Qx is attached to the one reinforcing cord tensile body W linearly stretched at a predetermined interval.
The molding material Wa is assembled to form a preformed product Q, and the molded product Qx assembled first is loaded into the vulcanizing press device 7 to perform molding and vulcanization. By preparing the assembling work of the molding material of the next molded product on 6 and continuously performing the operation of molding the preformed product Q, the productivity and workability of the molded product Qx can be significantly improved. .

Next, the continuous vulcanization molding method will be specifically described with reference to the flowcharts of FIGS. First, the initial position of each device when the molded product Qx is vulcanized by the vulcanizing press device 7 is set as follows. A predetermined tension is applied to the reinforcing cord tensile member W by the first tension applying device 2 and the second tension applying device 4, the forming conveyor device 32 is positioned at the lower limit, and the vulcanizing press device 7 is set at the lower limit. That is, the vulcanizing position is set, and the material pressing member 65b is set to the lowering position.

The molded product peeling devices 67a and 67b are
The conveyor frame 93 of the carry-out conveyor device 8 is located at the origin position, the horizontal roller conveyor 95 is at the limit position, and the split roller conveyor 97 is at the lower limit position. Further, the drive motors 124, 132a,
132b is in a stopped state.

The continuous molding of a long object is started from the above state. First, in FIG. 39, vulcanization is started for the crawler molded product Qx set in the vulcanizing press device 7 as shown in FIG. 42 (step (1)), and the belt conveyor 34 of the preforming device 6 is removed. As shown in FIG. 6, the reinforcing cord tensile body W is moved from the transport line SS to the preforming position K in the Sx direction (step (2)), and the molded product is supplied from the molding material supply device 5 onto the belt conveyor 34. A molding material 1 such as a cover rubber of Qx, that is, three rubber sheets provided below the reinforcing cord tensile member W are supplied and aligned (step (3)).

When the supply of the molding material is completed, the belt conveyor 34 is again moved to the conveying line SS of the reinforcing cord tensile member W.
(Step (4)), and is raised to the material molding position via the cylinder 36 and the link mechanism 37 of the elevating means (step (5)). In this state, the reinforcement cord tension member W is positioned on a molding material such as a cover rubber, and the material transfer device 41 is placed on the reinforcement cord tension member W from FIG.
The molding material 4 such as the core metal 3 and the cover rubber shown in FIG. 2 is supplied and set (step (6)).

When the setting of the molding material 4 such as the metal core 3 and the cover rubber on the reinforcing cord tensile member W is completed, the vulcanizing press 7 completes the vulcanizing press device 7 of the molded product Qx set first (step ( 7)), the upper die 66 of the vulcanizing press device 7 is raised (step (8)), and stopped at an intermediate position for a preset time (several seconds) to obtain a product state, that is, the molded product Q
Check visually whether x is attached (Step
(9), (10), (11)).

Thereafter, the upper mold 66 is raised again and positioned at the upper limit, and a fall prevention pin (not shown) is inserted so that the upper mold 66 does not fall during workability (step (1)).
2), (13), (14)). And the material holding cylinder 65a
Then, the material pressing member 65b is raised to the uppermost limit via (step (15)).

In such a state, the tension is applied to the reinforcing cord tensile body W by the first tension applying device 2 and the second tension applying device 4 so that the molded product Qx is released from the lower mold 64. A tension is applied (step (16). Further, a pair of molded product peeling devices 6 is provided.
7a and 67b are lifted to lift the reinforcing cord tensile body W upward, and at the same time, the molded product W is released from the lower mold 64 and lifted. When this process is completed, the conveyor frame 93 of the unloading conveyor 8 is raised to the limit. Raise (step
(17), (18)).

Then, as shown in FIG. 40, a conveyor frame 93 is provided below the molded product Qx in the vulcanizing press 7.
The horizontal roller conveyor 95 installed in the apparatus is horizontally moved to enter (step (19)), and the molded article peeling devices 67a, 67
7b is lowered to the same position as the height of the horizontal roller conveyor 95, and the molded product Qx supported by the reinforcing cord tensile member W is placed on the horizontal roller conveyor 95 (step (20)).

On the other hand, the molded product Q is
While taking x, the plurality of divided roller conveyors 97 are raised to the same height as the horizontal roller conveyor 95 (step (21)), and are supported by the first tension applying device 2 and the second tension applying device 4. The tension of the reinforcing cord tension member W is reduced to zero (step (22)). Thereafter, the holding plate 28b of the first tension applying device 2 and the second tension applying device 4 and the cord clamping device 109 are operated so as to be in the open state, and the reinforcing cord tensile member W is brought into the unclamped state (step (23) )), The air cylinder 113 of the lifting / lowering device 112a, 112b is operated to raise the reinforcing cord tensile member W (step (24)).

Then, the molded product Qx is sent to the molded product take-up device 3 side, clamped between the drive roller 123 and the vertically movable drive rollers 133a, 133b, and driven by drive motors 132a, 132b synchronized with the drive motor 124. Is driven forward (step (25)), and the reinforcing cord tensile member W is unwound from the unwinding device 1 during normal rotation, and if the take-off amount is OK, the drive motors 124, 132a, and 132b are driven. It is stopped (steps (26), (27), (28)). The drive motors 124 and 132a and 132b operate in synchronization with the molded article take-up device 3, the preforming device 6, and the unwinding device 1.

In this way, when it is confirmed that the take-off position of the molded product Qx is OK (step (29)), the lifting cylinder 30, the first tension applying device 2 and the second tension applying device 4 The air cylinder 113 is operated to the lower limit position, and the clamp cylinders 26 and 115,
The reinforcement cord tension member W is clamped by operating the 118 to the lower limit position (steps (30), (31)).

In such a state, the first tension applying device 2 and the second tension applying device 4 are respectively moved in the left-right direction to set the tension at the time of assembling the preform to the reinforcing cord tensile member W. (Step (32)). Next, the molded article peeling device 67b on the preformed article carry-in side is moved to the lower limit position (step (33)), and the horizontal roller conveyor 95 installed on the conveyor frame 93 of the carry-out conveyor 8 is moved to the standby position. A plurality of split roller conveyors 97
To the lower limit position (Steps (34), (35), (3
6)).

After checking whether or not the horizontal roller conveyor 95 is at the limit position, the horizontal roller conveyor 95 is stopped (step (37)). Then, the molded product peeling device 67b on the preformed product carry-in side is raised and moved to the origin position, and the molded product peeling device 67a on the carry-out side is lowered and moved to the origin position (steps (38) and (39)). ).

As shown in FIG. 41, the conveyor frame 35 of the forming conveyor device 32 descends and moves to the origin position, and the belt conveyor 34 descends and moves to the origin position (steps (40) and (41)). )). The core metal position of the preformed molded product Qx on the belt conveyor 34 is checked, and if the core metal position is shifted, the reinforcing cord tensile member W is connected to the first tension applying device 2 and the second tension applying device. 4 is corrected while moving (step (42)).

When the next preform Q is supplied onto the lower mold 64 of the vulcanizing press 7, the induction heating device 61
The preform Q preformed by using the induction heating is used to heat the reinforcing cord tensile body W such as a core metal or a steel cord, thereby preheating the temperature of the rubber molding material from the inside in advance, It is also possible to shorten the vulcanization time in the vulcanizing press device 7 in the process.

The preform Q is converted into the lower mold 6 of the vulcanizing press 7.
4 and then remove the ram fall prevention pin and
Is lowered, and the reinforcing cord tensile member W is set to the tension at the time of vulcanization by the first tension applying device 2 and the second tension applying device 4,
The automatic vulcanization is started by moving the material pressing member 65b to the lower limit position (Step (43) to (Step (4)
7)).

The above is one cycle of the molded article Qx.
By continuously performing such steps, productivity and workability can be improved.

[0087]

According to the present invention, a conveyor frame which can be moved up and down on a base plate is installed on a base plate as described above, and a roller conveyor which can reciprocate in a horizontal direction via a driving device, and a longitudinal axis of the conveyor frame. With a plurality of vertically movable roller conveyors installed at predetermined intervals in the direction, conveyors with different functions can be integrated into one unit, and it can be manufactured at low cost and can be used easily even in narrow spaces. , Workability can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic front view of all steps of a continuous molding vulcanizing apparatus embodying the present invention.

FIG. 2 is a schematic plan view of FIG.

FIG. 3 is a plan view of the first tension applying device.

FIG. 4 is a front view of the first tension applying device.

FIG. 5 is a side view of the first tension applying device.

FIG. 6 is a plan view of a preforming conveyor device.

FIG. 7 is a front view of a preforming conveyor device.

FIG. 8 is a side view of a preforming conveyor device.

FIG. 9 is a plan view of a molding material supply device.

FIG. 10 is a front view of a molding material supply device.

FIG. 11 is a schematic front view showing another embodiment of the molding material supply device.

FIG. 12 is an explanatory view showing a method of transferring a molding material from a transfer carriage to a forming conveyor device of a preforming conveyor device.

FIG. 13 is a plan view of a material transfer device that transfers a molding material to a molding conveyor device.

FIG. 14 is a front view of FIG.

FIG. 15 is a front view showing another embodiment of a material transfer device for transferring a molding material to a molding conveyor device.

FIG. 16 is a plan view of a vulcanizing press device.

FIG. 17 is a front view of a vulcanizing press device.

FIG. 18 is a side view of a vulcanizing press device.

FIG. 19 is a side view of a molded article peeling device on the side of a preformed article carried in;

FIG. 20 is a front view of a molded article peeling device on the side of a preformed article carried in;

21 (a) is a side view of a molded product peeling device on the preformed product discharge side, and FIG. 21 (b) is a front view of the molded product peeling device on the preformed product discharge side.

FIG. 22 is a partially cutaway front view of the unloading conveyor device.

FIG. 23 is a plan view of the unloading conveyor device.

FIG. 24 is a front view of the second tension applying device.

FIG. 25 is a plan view of a second tension applying device.

FIG. 26 is a side view of the second tension applying device.

FIG. 27 is an operation explanatory view of the product clamping device in the second tension applying device.

FIG. 28 is an explanatory view of the operation of the cord clamp device in the second tension applying device.

FIG. 29 is a front view of the molded product taking-off device.

FIG. 30 is a plan view of the molded product taking-off device.

FIG. 31 is a side view of the molded article taking-off device.

FIG. 32 is a side view of the vulcanization connection device.

FIG. 33 is a front view of a vulcanization connection device.

FIG. 34 is a plan view of a vulcanization connection device.

FIG. 35 is an enlarged side view of the clamp means of the vulcanization connection device.

FIG. 36 is an enlarged side view showing a state where the clamping means of the vulcanization connection device is clamped.

FIG. 37 is a front view of the clamping means.

38 (a) to 38 (e) are explanatory diagrams of the operation of all steps of the continuous molding vulcanizing apparatus.

FIG. 39 is a flowchart from step (1) to step (18) from the start of vulcanization to the end of ascending the conveyor gantry.

FIG. 40 is a flow chart from a step (19) to a step (39) of moving the molded product peeling device on the unloading side to the descending origin position from the step in which the horizontal roller conveyor of the unloading conveyor enters the vulcanizing press device. .

FIG. 41 is a flowchart from step (40) to step (47) from the step of moving to the belt conveyor lowering origin position to the start of automatic vulcanization.

FIG. 42 is a sectional view showing the structure of a conventional crawler.

[Description of Signs] 8 Unloading conveyor device 90 Base plate 91 Elevating cylinder 92 Guide rod 93 Conveyor frame 94 Drive unit 95 Horizontal roller conveyor 96 Elevating cylinder 97 Split roller conveyor

Claims (2)

[Claims] 1. A conveyor frame which can be moved up and down on a base plate, and a roller conveyor which can reciprocate in a horizontal direction via a driving device on the conveyor frame;
A conveyor device comprising: a plurality of vertically movable divided roller conveyors installed at predetermined intervals in a longitudinal direction of a conveyor frame. 2. A detection sensor is attached to each of the plurality of divided roller conveyors, and the divided roller conveyors are individually
The conveyor device according to claim 1, wherein the conveyor device is moved up and down at the same time.