JPS6240249B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a shoe conveying device, in particular, a first mold that holds one of the left or right shoes after molding is completed, and a second mold that holds the other shoe. The shoe transport device is arranged adjacent to a molding device that can move intermittently to a predetermined mold release position, and the shoe conveyance device is arranged adjacent to a molding device that can move intermittently to a predetermined mold release position, and the shoe conveyance device transports shoes individually released from each mold at the mold release position to a pair of left and right shoes. It is an object of the present invention to provide the above-mentioned device which can contribute to improving the efficiency of the next process, such as boxing work performed in units of pairs, by allowing shoes to be carried out in correct alignment.

In order to achieve the above object, the present invention alternately and intermittently uses a first mold for holding either the left or right shoe after molding is completed, and a second mold for holding the other shoe. A shoe conveying device that is disposed adjacent to a molding device that can move to a predetermined mold release position and carries out shoes released from each mold at the mold release position in a pair of left and right pairs, A first conveyor, which is provided with a carry-in part for placing the shoes after being released from the mold, near the mold position; connected to the carry-out part of the first conveyor, and capable of conveying the shoes in the same conveyance direction as the first conveyor; a second conveyor; a stopper for shoes provided at the carry-out section of the second conveyor; and a shoe stopper provided at the carry-in section of the second conveyor; When the shoes are placed, the first conveyor is operated to transport them to the standby position, and if there are shoes in either the carry-in section or the standby position, both conveyors are operated simultaneously to align them in front of the stopper. a first control device that causes the shoes to be placed in the loading section; when there are shoes in the standby position and no shoes are placed in the loading section even after a predetermined period of time has elapsed after the second mold reaches the release position; a second control device that simultaneously operates both conveyors to convey only one side of the shoes when the shoes are placed in the loading section with no shoes in the mold and a second mold in the mold release position; ; It is characterized by comprising at least;

Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 3. In FIG. 3, a molding device M for molding a shoe sole includes a rotary table 20 that can be rotated intermittently, and a rotary table 20 that is installed on one side of the rotary table 20. On the rotary table 20, there is a first mold 2 for molding the sole of the right shoe _S1 .
1 ₁ and a second mold 21 ₂ for molding the sole of the left shoe S ₂ are arranged alternately and at equal intervals in the circumferential direction. The molds 21 ₁ , 21 ₂ in which shoe covers are set by known appropriate means are successively moved and held at the injection molding position A by intermittent rotation of the rotary table 20. If the injection machine 26 is operated with the molds 21 ₁ and 21 ₂ held at the injection molding position A, the soles are injection-molded in the molds 21 ₁ and 21 ₂ , and at the same time the soles are molded. It is fixed to the bottom surface and the finished shoe is formed. The mold 21 ₁ that has completed its molding,
₂₁₂ is moved to the mold release position B by the next intermittent rotation of the rotary table 20, where the shoes are individually released from the mold by a shoe removal robot or an operator (not shown). The above released shoe S ₁ ,
A conveyance device for aligning the left and right pairs of S ₂ and carrying them out is arranged adjacent to the molding device M as described below.

That is, near the mold release position B of the molding device M,
A carry-in part 30 of an endless belt type first conveyor ₁₁ is provided, and the shoes S ₁ and S ₂ immediately after being released from the mold are directly placed on this carry-in part 30.
The first conveyor ₁₁ can horizontally transport the shoes placed on its transport surface from the left to the right in FIG. At the unloading section of the first conveyor ₁₁ , there is a second roller-type conveyor 1 that can horizontally convey shoes in the same direction.
₂ are installed in succession.

A plate-shaped stopper 3 for aligning the shoes carried out from the first conveyor ₁₁ into one pair is pivotally supported in _the carrying-out section of the second conveyor 12 so as to be swingable in a horizontal plane. The stopper 3 is connected to the second conveyor 1 ₂
It can take a position substantially perpendicular to the shoe transport direction on the conveyance surface of the shoe, and a position retracted to the side of the second conveyor ₁₂ .

On both sides of the first conveyor ₁₁ , there are first transmission type photoelectric switches _P1 for detecting whether or not there are shoes in the carry-in section 30 of the conveyor ₁₁ , and a transmission-type first photoelectric switch P1 for detecting whether shoes are carried out from the carry-in section 30 of the same stopper ₁₁ . A second transmission type photoelectric switch _P2 is installed to detect whether or not there are shoes at a standby position _D set on the front side of _the direction. the first control device of
_C1 , that is, when shoes are placed in the loading section 30 with no shoes in the standby position D, they are transferred to the standby position D.
The first conveyor ₁₁ is operated to transport the shoes to the stopper 3, and if there are shoes in either the carry-in section 30 or the standby position D, both conveyors ₁₁ and ₁₂ are operated simultaneously to align them in front of the stopper 3. I'm starting to let them do it.

The roller holding frame 4 of the second conveyor ₁₂ is supported by the tip of a piston rod 6 of an air cylinder 5 erected below, and the second conveyor ₁₂ can be moved up and down by the operation of the air cylinder 5. ing. A cam plate 7 for rotating the second conveyor ₁₂ is installed on one side of the second conveyor ₁₂ , and the cam plate 7 has a substantially crank-shaped grooved cam extending in the vertical direction. 8 is formed. As shown in FIG. ₂ , the roller holding frame 4 of the second conveyor 12 has an arm 9 projecting toward the grooved cam 8, and a roller 10 rotatably supported at the tip of the arm 9 is attached to the groove. It is fitted into the cam 8 so that it can roll. As a result, when the piston rod 6 of the air cylinder 5 is extended, the second conveyor ₁₂ rises and rotates 90 degrees counterclockwise in FIG. 1, so that the stopper 3 becomes substantially parallel to the shoe conveying direction. On the other hand, when the piston rod 6 is retracted, the second conveyor ₁₂ rotates 90 degrees clockwise in FIG. 1 while descending. Thus, the air cylinder 5, the grooved cam 8 and the roller 10 are connected to the second
It constitutes an elevating and rotating mechanism 11 for the conveyor ₁₂ .

When the second conveyor ₁₂ is in the raised position, the roller-type _third to
Fifth conveyors 1 ₃ to 1 ₅ are arranged in series.

On the discharge side of the fifth conveyor ₁₅ , a plate-shaped stopper 13 is disposed between the last roller ₁₂₁ and the previous roller ₁₂₂ .
3 is adapted to appear and retract from the conveying surface of the fifth conveyor ₁₅ by an air cylinder 14.

A trolley conveyor 15 is disposed on the discharge side of the fifth conveyor ₁₅ for conveying the shoes pushed out from the fifth conveyor 15 to, for example, a boxing workshop.

A pneumatic first sweep 16 ₁ is arranged above the second conveyor 1 ₂ , whose extrusion plate 17 ₁ is connected to the outer edge of the second conveyor 1 2 and to the third conveyor 1 when the second conveyor 1 ₂ is in the raised position. When the _extrusion plate ₁₇₁ reciprocates, the shoes on the second conveyor ₁₂ are pushed out toward the third conveyor ₁₃ .

A pneumatic second sweep 16 ₂ is disposed above the fifth conveyor 1 ₅ , and its extrusion plate 17 ₂ is connected to the inlet side of the fifth conveyor 1 ₅ and the trolley conveyor 15 .
It reciprocates horizontally between the edge of the hanger 18 and reciprocates up and down by a small air cylinder 19,
When the extrusion plate ₁₇₂ moves horizontally, the shoes on the fifth conveyor ₁₅ are extruded toward the hanger 18.

Next, the operation of transporting shoes using the device will be explained. First, close the start switch (not shown),
The first mold 2 holds the right shoe _S1 at the mold release position B by a shoe removal robot (not shown) or a worker.
When the shoe is released from _the mold and placed on the loading section 30 of the conveyor ₁₁ so that the length direction of the shoe is perpendicular to the conveyance direction of the first conveyor ₁₁ , the shoe is transferred to the transmission type first photoelectric switch P. ₁ is detected, and the first conveyor ₁₁ is activated by the detection signal to remove the right shoe _S1.
is transported to the right. And the right shoe S ₁ is the second transparent type.
When the position of the photoelectric switch _P2 is reached, it is detected by the second photoelectric switch _P2 , and the detection signal causes the first conveyor ₁₁ to stop operating. Next, after the rotary table 20 of the molding device M rotates intermittently to move the second mold ₂₁₂ to the mold release position B, the left shoe _S2 is moved to the second mold ₂₁₂ by the shoe removal robot or worker. Release the mold further and repeat the first step as described above.
When it is placed on the loading section 30 of the conveyor ₁₁ , it is detected by the first photoelectric switch _P1 , and the detection signal causes the first conveyor ₁₁ and the second conveyor ₁₂ , which are in the lowered position, to operate simultaneously and mutually The right shoe _S1 and the left shoe _S2 placed on the first conveyor ₁₁ at a distance are sequentially conveyed from the first conveyor ₁₁ onto the second conveyor ₁₂ .

In the second conveyor ₁₂ , the stopper 3 is located on its conveying surface, so the right shoe _S1 collides with it, and then the left shoe _S2 collides with the right shoe _S1 , and both shoes collide.
S ₁ and S ₂ stop advancing and are aligned as one pair. When the right shoe _S1 collides with the stopper 3, it is detected by the third reflective photoelectric switch _P3 , and a timer (not shown) is activated by the detection signal. When the time set by the timer has elapsed,
The first and second conveyors 1 ₁ and 1 ₂ stop, while the air cylinder 5 is operated and the second conveyor 1 ₂ is raised and rotated 90 degrees counterclockwise in FIG. 1 . Second
Confirm the rise of conveyors 1 _{and 2} Limit switch L ₁
The detection signal causes the stopper 3 to swing and retreat to the side from above the conveying surface of the second conveyor ₁₂ , which is detected by the confirmation limit switch _L2.
Detected by Confirm limit switch
The third conveyor ₁₃ is actuated by the detection signal of _L2 , and the first sweep ₁₆₁ is also actuated, and the rightward movement of the extrusion plate ₁₇₁ causes both shoes _S1 on the second conveyor ₁₂ to be moved. , S ₂ is the third conveyor 1 ₃ from the heel side
pushed upwards.

The forward movement of extrusion plate 17 ₁ is confirmed by the limit switch.
The push-out plate ₁₇₁ moves backward in response to the detection signal _L4 , and the backward movement is detected by the confirmation limit switch _L5 . The air cylinder 5 is actuated by the detection signal, and the second conveyor 1 ₂
While descending, it rotates 90 degrees in the opposite direction and returns to its original position, which is detected by the confirmation limit switch _L6 , and the detection signal causes the stopper 3 to swing and close the conveying surface of the second conveyor _12. Reposition above.

Both shoes pushed out onto the conveyance surface of the third conveyor ₁₃
S ₁ and S ₂ are conveyed to the right by the conveyor ₁₃ , and when they are detected by the transmission type fourth photoelectric switch _P4 , the third conveyor ₁₃ is stopped by the detection signal. In this case, if the transmission type fifth photoelectric switch _P5 provided on the fourth conveyor ₁₄ does not detect shoes, that is, if there are no shoes on the fourth conveyor ₁₄ , the third and fourth conveyors 1 ₃ and ₁₄ are activated, and both shoes S ₁ and S ₂ are conveyed from the third conveyor ₁₃ to the fourth conveyor ₁₄ to the right.

When both shoes S ₁ and S ₂ reach the position of the fifth photoelectric switch P ₅ , the detection signal causes the third and fourth conveyors ₁₃ and ₁₄ to stop, and a timer (not shown) is activated. When the time set by the timer has passed, the fourth and fifth conveyors 1 ₄ , 1 ₅
operates, and both shoes S ₁ and S ₂ are conveyed from the fourth conveyor ₁₄ to the fifth conveyor ₁₅ to the right.

In the fifth conveyor ₁₅ , since a stopper 13 protrudes from the conveying surface thereof, both shoes are placed on the stopper 13.
Since S ₁ and S ₂ collide and both shoes S ₁ and S ₂ reach the position of the transmission type sixth photoelectric switch P ₆ , a timer (not shown) is activated by the detection signal. When the time set by the timer has elapsed, the small air cylinder 19 of the second sweep ₁₆₂ is activated to lower the push-out plate ₁₇₂ located above the input side of the fifth conveyor ₁₅ , and 5 conveyor 1 ₄ ,
₁₅ stops, and the air cylinder 14 is further activated to lower the stopper 13.

Lowering of extrusion plate 17 ₂ is confirmed limit switch
_L7 detects that the hanger 18 of the trolley conveyor 15 is located on the discharge side of the fifth conveyor _15. It is also detected by the limit switch _L8 that a timer (not shown) is activated. When the time set by the timer has elapsed, the second sweep 1
6 ₂ is activated, and the forward movement of the push-out plate 17 ₂ to the right pushes both shoes S ₁ and S ₂ on the fifth conveyor ₁ 5 onto the hanger 18 of the trolley conveyor 15 . It is transported to a predetermined location.

The forward movement of the pushing plate ₁₇₂ is detected by a confirmation limit switch _L9 , and the pushing plate 17 moves backward in response to the detection signal, and the backward movement is detected by a confirmation limit switch _L10 . The detection signal activates the small air cylinder 19, and the push-out plate ₁₇₂ is raised and returned to its original position. The rise of the push-out plate ₁₇₂ is detected by the confirmation limit switch _L11 , and the air cylinder 1 is
4 is activated and the stopper 13 projects again onto the conveying surface of the fifth conveyor ₁₅ .

When both shoes S ₁ and S 2 are placed on the third to fifth conveyors 1 ₃ to 1 ₅ respectively, both shoes S ₁ and _{S 2 on} the fifth conveyor 1 ₅ are placed on the trolley conveyor 15. If the sixth photoelectric switch _P6 does not detect the shoes after they have been pushed out onto the hanger 18, the fourth conveyor ₁₄ operates to direct both shoes _S1 and _S2 on the conveying surface toward the fifth conveyor _15. If the shoes are not detected by the fifth photoelectric switch P5, the third _{conveyor 13 is} operated to convey both shoes _S1 and _S2 on the conveyance surface toward the fourth conveyor ₁₄ . As a result, the shoes S ₁ and S ₂ transported first can be pushed out to the hanger 18 of the trolley conveyor 15 in order.

Above is the first conveyor 1 ₁ left and right shoes S ₁ , S ₂
In this case, normal conveyance is performed when both shoes are placed in the right and left arrangement order, but for example, after the right shoe _S1 is placed on the first conveyor ₁₁ , the left shoe _S2 is placed on the first conveyor 11. A problem may occur in which _the left shoe _S2 is not placed on the first conveyor ₁₁ for some reason, such as molding or failure to take off the left shoe S2. In such a case, when the first conveyor ₁₁ is operated in the same manner as described above, the left shoe _S2 is transferred to the first conveyor _11.
Since the next right shoe _S1 is not placed on the first conveyor ₁₁ , the right shoe _S1 and the right shoe _S1 are conveyed as a set, and the left shoe is not placed on the next conveyor.
A problem arises in that both shoes S 1 and S ₂ are transported in the reverse order of normal arrangement, with S ₂ coming first and _the right shoe S ₁ following.

In the present invention, a mechanism as described below is provided in order to eliminate such problems. That is, each second mold 21 on the circumferential surface of the rotary table 20
_A cam 22 is attached to the lower part of the rotary shaft table 20, and a detection element 23 such as a limit switch or a proximity switch for detecting the position of the cam 22 is arranged around the rotary shaft table _20.
When the cams 22 reach the mold release position B, each cam 22 is detected and a detection signal thereof is output to the control circuit 24. The cam 22, the detection element 23, and the control circuit 24 cooperate with each other to constitute the second control device _C2 of the present invention. That is, when the right shoe _S1 is in the standby position D and the When the left shoe S 2 is not placed on the loading section 30 even after a predetermined period of time has passed since the second mold 21 ₂ reaches the release position B, and when there is no right shoe S ₁ at the standby position D and _the 2. With the mold 21 ₂ in the mold release position B, the loading section 30
When the left shoe _S2 is placed on the conveyor belt, both conveyors ₁₁ and ₁₂ are operated simultaneously to convey only the shoe on one side.

In addition, in FIG. 3, 25 is a drive motor for the first conveyor ₁₁ .

In the above configuration, when the right shoe _S1 is placed on the loading section 30 of the first conveyor ₁₁ , it is detected by the transmission type first photoelectric switch _P1 , and the detection signal is used to transfer the right shoe S1 to the first conveyor 11. 1 ₁ is activated and the right shoe S ₁ is conveyed in the direction of disappearance. Next, when the right shoe _S1 is detected by the second transmission type photoelectric switch _P2 , the first conveyor ₁₁ stops its operation based on the detection signal. During this time, the rotary table 20 is intermittently rotated counterclockwise in FIG. 3, so that the cam 22 corresponding to the second mold 212 faces the detection element ₂₃ , thereby activating the control circuit 24. Even after the time set by the control circuit 24 has elapsed, the left shoe _S2 remains on the first conveyor 1.
When it is not placed on the first conveyor _{1 1}
The drive motor 25 is driven to operate the first conveyor ₁₁ , and only the right shoe _S1 is conveyed toward the second conveyor _12. Thereafter, only the right shoe _S1 is conveyed to the trolley conveyor 15 in the same manner as described above. It is something.

Further, the right shoe _S1 is not placed on the first conveyor ₁₁ , and the left shoe _S2 is first placed on the carry-in section 3 of the first conveyor ₁₁ .
0, the first conveyor ₁₁ is actuated by the first transmissive photoelectric switch _P1 , and then the left shoe _S2 reaches the position of the second transmissive photoelectric switch _P2 . Through the cooperation of the cam 22, the detection element 23, and the control circuit 24, both conveyors 1 ₁ , 1 ₂
Since both are kept in an operating state, only the left shoe _S2 is conveyed until it collides with the stopper 3, and thereafter only the left shoe _S2 is conveyed to the trolley conveyor 15 in the same manner as described above.

Through the above operations, the left and right shoes S ₁ and S ₂ may be transported in the reverse order, or the left, right or left shoes may be transported in the reverse order.
It is possible to prevent the paper from being transported in the right combination.

4 to 6 show modified examples of the present invention, in which the first to fifth conveyors 1 ₁ to 1 ₅ are arranged in series, in this case left and right shoes S ₁ , S ₂ is stopper 3
After the stoppers 3 are aligned in one step, the stoppers 3 swing from the conveying surface of the second conveyor ₁₂ in the disappearing direction and retreat to the side, and the second conveyor ₁₂ is activated to move the left,
The right shoes S ₁ and S ₂ are conveyed toward the third conveyor ₁₃ .

FIG. 5 shows the second sweep _{162 disposed above the second conveyor 12 ,} and the plate-shaped stopper 13
are arranged so as to appear and retract from the conveyance surface of the second conveyor ₁₂ by means of an air cylinder 14.

In FIG. 6, the third to fifth conveyors ₁₃ to ₁₅ are arranged at right angles to the first and second conveyors _{11 and 12} , and the first sweep ₁₆₁ is arranged above the second conveyor 12. and the second by its sweep 16 ₁
Both shoes S ₁ and S ₂ on conveyor 1 ₂ are transferred to 3rd conveyor 1 ₃
It is designed to be pushed upwards.

As described above, the shoe conveying device of the present invention includes a first mold 21 ₁ that holds either the left or right shoe S ₁ after molding is completed, and a second mold 21 ₂ that holds the other shoe S ₂ . and alternately and intermittently at a predetermined release position B.
The shoes S ₁ and S ₂ released from the molds 21 ₁ and 21 ₂ at the release position B are arranged adjacent to the molding device M that can move up to In addition, in the vicinity of the mold release position B, there is a carry-in section 30 for placing the shoes S ₁ and S ₂ after the mold release.
a second conveyor ₁₂ that is connected to the loading section of the first conveyor ₁₁ and can convey _{the shoes S 1 and} S ₂ in the same conveyance direction as the first conveyor ₁₁ ; ; A stopper 3 for the shoes S 1 and S ₂ provided at the carrying-out section of the second conveyor 12; and a stopper 3 for the shoes S _{1 and} S ₂ provided at the carrying-out section of the second conveyor ₁₂ ; When shoes _S1 are placed in the loading section 30 without the
The first conveyor ₁₁ is operated to transport the shoes to the
When S ₁ and S ₂ are present, a first control device C ₁ is provided which simultaneously operates both conveyors 1 ₁ and 1 ₂ in order to align them in front of the stopper 3. The right shoe S ₁ and the left shoe S ₂ that have been individually released from the first and second molds 21 ₁ , 21 ₂ that have arrived intermittently are transferred to the carrying-in section 3 of the first conveyor 1 ₁ .
0, the left and right shoes S ₁ and S ₂ can be automatically conveyed to the unloading section of the second conveyor 1 ₂ in a correct alignment as one pair. This can greatly contribute to improving the efficiency of boxing and inspection work performed at the factory. In particular, when placing the shoes S ₁ and S ₂ on the loading section 30 of the first conveyor ₁₁ , the first
Since the conveyor ₁₁ is held in a stopped state, the shoe placement operation can always be performed accurately. Furthermore, when transporting the shoes S ₁ and S ₂ from the first conveyor ₁₁ to the unloading section of the second conveyor ₁₂ , wait until the left and right shoes S ₁ and S ₂ arrive on the first conveyor ₁₁ . , after the shoes S ₁ and S ₂ are arranged, both conveyors 1
Since ₁ , 1, and ₂ are operated simultaneously,
Compared to the case where the shoes S ₁ and S ₂ are conveyed separately, the operating time of the conveyors 1 ₁ and ₁₂ can be approximately halved, which can contribute to cost reduction.

Furthermore, when the shoes S ₁ are in the standby position D and the shoes S ₂ are not placed on the loading section 30 even after a predetermined period of time has elapsed since the second mold ₂₁₂ reached the mold release position; When the shoes S ₂ are placed in the carry-in section 30 with no shoes S ₁ in the standby position D and the second mold 21 ₂ in the mold release position B, only the shoes on one side of the shoes are to be carried. Both conveyors 1 ₁ , 1
Since a second control device C ₂ is provided to simultaneously operate _the shoes S _{1 and} 2, one shoe S 1 is placed in the standby position D of the first conveyor 1 ₁ , for example, due to a failure in releasing the shoes from the molds _{21 1} and 21 2. In the case where the other shoe _S2 is not placed in the loading section 30 of the first conveyor ₁₁ for a certain period of time even though the other shoe S2 is waiting, or vice versa, the shoe that should come before the above-mentioned waiting position D In the case where the other shoe _S2 is placed on the carry-in section 30 even though _there is no shoe S1, only one shoe on the first conveyor ₁₁ is transferred to the carry-out section of the second conveyor ₁₂ . Therefore, the pair of left and right shoes S ₁ and S ₂ that should be correctly aligned at the unloading section are transported in the opposite order, or in a combination of left and right, right and left. This is advantageous in automating the subsequent packaging work.

[Brief explanation of the drawing]

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is an overall perspective view, FIG. 2 is a partial perspective view, FIG. 3 is a plan view of an injection shoe making machine, and FIG. 6
The figures are perspective views of the second to fourth embodiments, respectively. B...Mold release position, _C1 , _C2 ...First and second control devices, D...Standby position, M...Molding device, _S1 ...
Right shoe, S ₂ ... Left shoe, 1 ₁ , 1 ₂ ... First and second conveyors, 3 ... Stoppers, 21 ₁ , 21 ₂ ... First and second molds, 30 ... Carrying-in section.

Claims (1)

[Claims] 1 After molding is completed, the first mold 21 ₁ that holds one of the left and right shoes S ₁ and the second mold 21 ₂ that holds the other shoe S ₂ are alternately and intermittently separated by a predetermined distance. Each mold 21 is disposed adjacent to a molding device M that can move to mold position B, and each mold 21 is
₁ , ₂₁ is a shoe transporting device for transporting released shoes S ₁ and S ₂ to a pair of left and right pairs, and the shoes S ₁ and S 2 after release are placed in the vicinity of the release position B. The first conveyor ₁ is provided with a carry-in section 30 for loading ₂ .
and; a second conveyor ₁₂ that is connected to the unloading section of the first conveyor ₁₁ and capable of conveying the shoes _S1 and _S2 in the same conveying direction as the first conveyor ₁₁ ; and a unloading section of the second conveyor ₁₂ . a stopper 3 for the shoes S ₁ and S ₂ provided in the section; and a carry-in section 30 of the first conveyor ₁₁ ;
Shoes S ₁ are placed in standby position D, which is set to the front in the transport direction.
When shoes S ₁ are placed in the loading section 30 without
The first conveyor ₁₁ is operated to transport the shoes to the standby position D, and if there are shoes S ₁ and S ₂ in either the carry-in section 30 or the standby position D, they are transported in front of the stopper 3. Both conveyors 1 ₁ ,
1 _{and 2} at the same time; the shoe S ₁ is in the standby _position D, and the second mold 21
When the shoe S ₂ is not placed on the loading section 30 even after a predetermined period of time has passed since the shoe S ₂ reaches the release position B, or when there is no shoe S 1 at the standby position D and there is no shoe S ₁ at the release position B, When shoes S ₂ are placed on the loading section 30 with two molds 21 ₂ present, a second control device C ₂ simultaneously operates both conveyors 1 ₁ and 1 ₂ to transport only the shoes on one side. A shoe conveying device comprising at least; and;