JPH0557173B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an object transfer device that sequentially transfers glass containers, paper containers, and other objects.

Conventionally, in this type of object transfer device, if the belt conveyor that sequentially transfers glass containers, paper containers, and other objects that have been processed at the preceding station to the following station is cut off between the preceding station and the following station, the supply screw is cut off. Objects are sequentially transferred from a leading belt conveyor to a trailing belt conveyor via a transfer mechanism using a body and a star wheel. However, when the object transfer speed of the preceding belt conveyor increases beyond a certain level, the inertial force applied to the transferring mechanism through the object can be reduced by the preceding belt conveyor, which is There is also a risk that sufficient suppression may not be possible in the event of a sudden stop due to an accident.

The present invention seeks to provide an object transfer device that eliminates the above-mentioned drawbacks.

The details will be explained below with reference to the drawings.

In Figures 1 to 6, the preceding station
A leading belt conveyor BLT ₁ and a trailing belt conveyor BLT ₂ are stretched between ST ₁ and trailing station ST ₂ , and glass container paper is subjected to appropriate treatment such as washing at leading station ST ₁ . Containers and other objects BOT are being sequentially transferred to trailing station ST ₂ . A transfer mechanism TRSF is arranged between the leading belt conveyor BLT ₁ and the trailing belt conveyor BLT ₂ . The transfer mechanism TRSF includes first to third main star wheels MSTW ₁ , MSTW ₂ , MSTW ₃ and a leading belt conveyor BLT ₁ to the main star wheel MSTW ₁ ,
Objects from the first and second leading star wheels PSTW ₁ , PSTW ₂ and the main star wheels MSTW ₁ , MSTW ₂ , MSTW 3 that supply objects BOT to MSTW ₂ , MSTW _{3 .}
1st supplying BOT to trailing belt conveyor BLT ₂
Second trailing star wheels ASTW ₁ and ASTW ₂ are included. 1st 2nd leading star wheel PSTW ₁ ,
A leading pulley PPLY is mounted on the leading star axle PSHFT to which PSTW ₂ is mounted between the mounting positions of the first and second leading star wheels PSTW ₁ and PSTW ₂ . 1st
The trailing star axle ASHFT on which the second trailing star wheels ASTW ₁ and ASTW ₂ are mounted has a transition pulley between the mounting positions of the first and second trailing star wheels ASTW ₁ and ASTW ₂ .
APLY is installed. Driving pulley DPLY and guide pulley GPLY are additionally attached, and round belt
The RBLT is stretched between the driving pulley DPLY, the leading pulley PPLY, the trailing pulley APLY, and the guide pulley GPLY. Leading star axle PSHFT and trailing star axle
ASHFT passes through the housing HSNG of the transfer mechanism TASF and extends downward from the object transfer surface of the leading belt conveyor BLT ₁ and the trailing belt conveyor BLT ₂ , and the bearing at the housing HSNG penetration part.
It is held in BRNG. Main star wheel MSTW ₁ ,
Main star axle fitted with MSTW ₂ and MSTW ₃
MSHFT also passes through the housing HSNG to lead belt conveyor BLT ₁ trailing belt conveyor
It extends downward from the object transfer surface of BLT ₂ ,
It is held in the bearing BRNG by the housing HSNG penetration. The drive pulley shaft DSHFT ₁ on which the drive pulley DPLY is attached also passes through the housing HSNG and extends downward from the object transfer surface of the leading belt conveyor BLT ₁ and the trailing belt conveyor BLT ₂ , and the bearing is attached to the housing HSNG through the housing HSNG.
It is held in BRNG. Furthermore, the guide pulley
The guide pulley shaft GSHFT equipped with GPLY passes through the housing HSNG to the leading belt conveyor.
It extends below the object transfer surface of BLT ₁ trailing belt conveyor BLT ₂ , and is held by the bearing BRNG at the housing HSNG penetration part. The main star axle MSHFT, the leading star axle PSHFT, the trailing star axle ASHFT, and the drive pulley shaft DSHFT ₁ are connected to the rotating shaft of the driven wheel of the trailing belt conveyor BLT ₂ via an appropriate gear train. star car
MSTW ₁ , MSTW ₂ , MSTW ₃ recess MCONC ₁ ,
MCONC ₂ , MCONC ₃ and leading star car PSTW ₁ ,
Recess PCONC ₁ of PSTW ₂ , PCONC ₂ and trailing star wheel ASTW ₁ , recess ACONC ₁ of ASTW ₂ ,
ACONC 2 and ACONC ₂ are rotated to match each other.

Leading star wheel PSTW ₁ , PSTW ₂ recess PCONC ₁ ,
PCONC ₂ has its deepest part displaced backward in the direction of rotation, and the trailing star wheels ASTW ₁ and ASTW ₂
The deepest portions of the recesses ACONC ₁ and ACONC ₂ are also respectively displaced rearward in the rotational direction. Leading star car
The shape and number of recesses PCONC ₁ of PSTW ₁ are the same as the shape and number of recesses PCONC ₂ of leading star wheel PSTW ₂ , and the shape and number of recesses ACONC ₁ of trailing star wheel ASTW 1 are the same as the shape and number of recesses PCONC ₁ of trailing star wheel PSTW 2. Car ASTW ₂ recess
Same shape and number as ACONC ₂ . Recesses of main star wheels MSTW ₁ , MSTW ₂ , MSTW ₃
The shapes of MCONC ₁ , MCONC ₂ , and MCONC ₃ are objects
It is said to have a shape that corresponds to the external shape of the BOT,
The numbers are assumed to be the same.

The transfer mechanism TRSF includes one end of the leading belt conveyor BLT ₁ , that is, the first and second leading star wheels PSTW ₁ ,
It contains a supply screw body INSC located on the opposite side of the PSTW ₂ arrangement side. supply screw body
A spiral groove with a shape corresponding to the external shape of the object BOT is formed on the circumferential surface of the INSC. supply screw body
One end of the rotating shaft SHFT of the INSC is connected to the drive shaft DSHFT ₂ and the rear belt conveyor via a suitable gear train.
It is connected to the rotating shaft of the driven wheel of BLT ₂ , and the other end is the pivot member PVT installed in the housing HSNG.
is maintained. The guide member GD ₁ as the first guide member is the object on the leading belt conveyor BLT ₁ .
It is located opposite the screw body INSC supplied via BOT. Guide element GD ₁ and supply screw body
The distance between the INSC and the INSC is set so that the object BOT is guided by the spiral groove and appropriately transferred toward the first and second leading star wheels PSTW ₁ and PSTW ₂ according to the rotation of the supply screw body INSC. ing. Further, a guide member GD ₂ as a third guide member is arranged on the pivot member PVT, and is guided by the supply screw body ISC and the guide member GD ₁ to the first and second leading star wheels PSTW ₁ . , object BOT supplied to PSTW ₂
is the first to third main star wheel MSTW ₁ ,
Ensure reliable supply to MSTW ₂ and MSTW ₃ . Near the upstream end of guide member GD ₁ is a third
Detecting means DET ₁ is arranged as a detecting means. The detection means DET ₁ is pivotally supported by the pivot shaft PVSHFT, and one side LV ₁ is connected to the leading belt conveyor BLT _1.
The second surface LV 2 extends in the object transport direction, and the other surface LV ₂ extends in a direction perpendicular to the object transport direction. A predetermined return force is applied to the other surface LV ₂ of the detection means DET ₁ by a spring SP. In addition, a micro switch is provided on the other surface LV ₂ of the detection means DET ₁ .
MS contacts are connected.

On the upstream side of the detection means DET ₁ and the supply screw body ISC, there are guide members GDR ₁ , GDR ₂ , as second guide members on both sides of the preceding belt conveyor BLT ₁ .
GDL ₁ and GDL ₂ are located. Guide member
The distance between GDR ₁ and GDR ₂ and the guide members GDL ₁ and GDL ₂ is set to be slightly larger than the width of the object BOT. The guide members GDR ₁ and GDR ₂ are arranged vertically apart from each other, and the guide members GDL ₁ and GDL ₂ are arranged vertically apart from each other. Guide member
There are guide members GDL ₁ and GDL ₂ near GDL ₁ and GDL _2.
Buffer star wheels STW ₁ and STW ₂ are arranged as engagement means for sequentially sending the guided objects BOT one by one between the guide members GDR ₁ and GDR ₂ .
The buffer star wheels STW ₁ and STW ₂ have the same shape and are fixed to the same rotating shaft SHF at intervals,
Guide members GDR ₁ , GDR ₂ and guide members GDL ₁ , GDL ₂
The circumferential recess is brought into contact with the circumferential surface of the object BOT, which is being moved by the preceding belt conveyor BLT ₁ between the objects BLT and BLT, and is rotated. The rotating shaft SHF is supported by bearings BRG ₁ and BRG ₂ , and a brake disc BRD is fixed to the lower end. The aforementioned brake disc is located near the brake disc BRD.
An electromagnetic device EM that prevents and stops the rotation of the BRD, and a pressurizing device that presses a synthetic resin brake piece against the brake disc BRD with a certain strength to apply a constant load to the brake disc BRD to reduce its rotation. Air is placed in the device PA.

Here, guide members GDR ₁ , GDR ₂ , GDL ₁ , GDL ₂ ,
Buffer star wheel STW ₁ , STW ₂ , brake disc
The BRD, the electromagnetic device EM, and the pressurized air device PA constitute object transfer speed control means according to the device of the present invention.

The upstream side of the detection means DET ₁ , that is, the detection means
Between DET ₁ and the buffer star wheels STW ₁ and STW ₂ , there is a device for detecting whether or not an object BOT that has passed through the buffer star wheels STW ₁ and STW ₂ is present at a predetermined position.
A detection means DET ₂ as a second detection means is arranged, and further upstream of the buffer star wheels STW ₁ and STW ₂ is a first detection means for detecting whether or not an object BOT exists. Detection means DET ₃ are arranged.

Next, the operation of the object transfer device of the present invention will be explained.

When the trailing belt conveyor BLT ₂ starts to be driven, its driven shaft also rotates, which in turn drives the main star wheels MSTW ₁ , MSTW ₂ , through appropriate gear trains.
MSTW ₃ Leading Star Car PSTW ₁ , PSTW ₂ Trailing Star Car
The rotational operations of the ASTW ₁ and ASTW ₂ drive pulleys DPLY and the supply screw body INSC are also started. Furthermore, since the rotating shaft of the driving mechanism of the leading belt conveyor BLT ₁ is also connected to the rotating shaft of the driven mechanism of the trailing belt conveyor BLT ₂ via an appropriate gear train, the rotational axis of the driving mechanism of the leading belt conveyor BLT 1 is connected to the rotating shaft of the driven mechanism of the trailing belt conveyor BLT ₂ . The operation of the preceding belt conveyor BLT ₁ is also started. As the trailing belt conveyor BLT ₂ starts operating, the trailing station ST ₂ and the leading station
The operation of ST ₁ is also started.

When the operation of the preceding station ST ₁ is started, the object processed by the preceding station ST ₁
The BOTs are sequentially supplied to the leading belt conveyor BLT ₁ and begin to be transferred to the main star vehicles MSTW ₁ , MSTW ₂ , and MSTW ₃ .

Before the object BOT reaches the detection means DET ₃ , low level signals are output from the detection means DET ₁ , DET _{2 and} DET ₃ , respectively. Since the output signal of the detection means DET ₁ as the third signal is given to the electromagnet device EM, the electromagnet device EM is in a de-energized state. The logical product of the inverted signal as the second signal obtained by inverting the output signal of the detection means DET ₂ by the inversion circuit INV and the output signal of the detection means DET ₃ as the first signal is created by the AND circuit AND, and the voltage is increased. Since the air supply is supplied to the air supply PA, the pressurized air supply PA is inactive. electromagnet device
Since the EM is de-energized and the pressurized air device PA is inactive, no restraining force is applied to the brake disc BRD.

When the object BOT reaches the detection means DET ₃ , a high level signal is output from the detection means DET ₃ and a low level signal is output from the detection means DET ₂ , so both inputs of the AND circuit AND become high level and pressurize. A high level signal is applied to the air device PA. As a result, the pressurized air device PA presses its brake piece against the brake disc BRD with a constant strength. Therefore, the buffer star wheels STW ₁ , STW ₂ reduce the transfer speed of the object BOT being transferred between the guide members GDL ₁ , GDL ₂ and the guide members GDR ₁ , GDR ₂ by the preceding belt conveyor BLT ₁ . urge This allows the main star wheels MSTW ₁ , MSTW ₂ , MSTW ₃
It is possible to reduce the transfer inertia of the object BOT supplied to the supply screw body.
INSC or main star wheel MSTW ₁ , MSTW ₂ ,
The impact that object BOT gives to MSTW ₃ can be reduced.

When the object BOT reaches the detection means DET ₂ , a high level signal is output from the detection means DET ₂ and the inversion circuit is activated.
Since the signal is inverted by INV and then applied to the GAND circuit AND, the output signal of the AND circuit AND is at a low level regardless of the level of the output signal of the detection means DET ₃ . This allows the pressurized air device PA
is considered inactive. This is the detection means DET ₂
If the object BOT exists at the detection position, even if the transfer speed of the object BOT is not reduced by the buffer star wheels STW ₁ and STW ₂ , the object BOT whose transfer speed has not been reduced will be detected by the detection means DET ₂ . Since it collides with the object BOT existing at the position and its speed decreases, the supply screw body INSC and the main star car MSTW ₁ ,
This is because there is no impact on MSTW ₂ and MSTW ₃ .

When the object BOT reaches the position of the supply screw body INSC, the guide member GD ₁ and the supply screw body INSC
Since the distance between them is set to an extent that does not allow the objects BOT to pass freely, the objects BOT are sequentially engaged in the spiral groove of the supply screw body INSC. Object BOT
is a guide member according to the rotation of the supply screw body INSC.
Main starwheel MSTW ₁ , MSTW ₂ , along GD ₁
Transferred to MSTW ₃ . supply screw body
The object BOT being transferred between the INSC and the guide member GD ₁ is placed in the recess of the leading star wheels PSTW ₁ and PSTW ₂ .
Engaged with PCONC ₁ and PCONC ₂ . The object BOT is engaged with the leading star wheels PSTW ₁ and PSTW ₂ , and then the spiral groove of the supply screw body ISC and the guide member GD ₁
The leading star wheels PSTW ₁ and PSTW ₂ are further transferred at regular intervals toward the main star wheels MSTW ₁ , MSTW ₂ , and MSTW ₃ by the leading belt conveyor BLT ₁ and guide member GD ₂ . When the object BOT approaches the main star wheels MSTW ₁ , MSTW ₂ , MSTW ₃ sufficiently, the main star wheels MSTW ₁ , PSTW ₂ are moved by the leading belt conveyor BLT ₁ and the guide member _{GD 2} Recesses of MSTW ₂ and MSTW ₃
It is engaged with MCONC ₁ , MCONC ₂ , MCONC ₃ and begins to be moved clockwise by main star wheels MSTW ₁ , MSTW ₂ , MSTW ₃ and leading star wheels PSTW ₁ , PSTW ₂ . The object BOT is a leading star car
It is engaged with the round belt RBLT by the time it is released from the pressing drive by PSTW ₁ and PSTW ₂ . object
BOT has round belt RBLT and main star wheel MSTW ₁ ,
It is removed from the preceding belt conveyor BLT ₁ while being sufficiently held by MSTW ₂ and MSTW ₃ . When released from the pressing drive of the leading star wheel PSTW ₁ , PSTW ₂ , the object BOT moves to the main star wheel MSTW ₁ ,
It continues to move clockwise by MSTW ₂ , MSTW ₃ and the round belt RBLT. When the object BOT is moved close to the trailing star wheels ASTW ₁ and ASTW ₂ , the trailing star wheel is held in the main star wheels MSTW ₁ , MSTW ₂ , MSTW ₃ and the round belt RBLT.
It is engaged with the recesses ACONC ₁ and ACONC ₂ of ASTW ₁ and ASTW ₂ . Main star wheel MSTW ₁ , MSTW ₂ ,
As the MSTW ₃ and the trailing star wheels ASTW ₁ and ASTW ₂ rotate, the round belt moves against the object BOT.
The holding power of RBLT is reduced. round belt
Object BOT before the holding force of RBLT becomes zero
is placed on the trailing belt conveyor BLT ₂ . The object BOT is transferred to the recess of the main star wheels MSTW ₁ , MSTW ₂ , MSTW ₃ by the trailing belt conveyor BLT ₂ .
Gradually separated from MCONC ₁ , MCONC ₂ , and MCONC ₃ . When separated, the trailing star car ASTW ₁ ,
The object BOT is transported by the ASTW ₂ at regular intervals on the trailing belt conveyor BLT ₂ toward the trailing station ST ₂ . Object BOT is a trailing star car
After being released from ASTW ₁ and ASTW ₂ , the trailing station ST ₂ is moved by the trailing belt conveyor BLT _2.
will be sequentially transported to.

On the other hand, if the object BOT is not engaged in the spiral groove of the supply screw body INSC,
When the object BOT is locked between the INSC and the guide member GD ₁ , one side LV ₁ of the detection means DET ₁ is pressed by the locked object BOT.
LV ₁ on one side of DET ₁ and LV ₂ on the other side are pivot shafts
It is rotated counterclockwise around PVSHFT. When the other surface LV ₂ of the detection means DET ₁ is rotated counterclockwise, the micro switch MS is turned off. Along with this, a high-level output signal is sent from the detection means DET ₁ , and the electromagnet device EM is brought into an excited state. The rotation of the brake disc BRD is restrained, and the rotational movement of the buffer star wheels STW ₁ and STW ₂ is also prevented. In addition, the object BOT engaged with the buffer star wheels STW ₁ and STW ₂ is restrained by the buffer star wheels STW ₁ and STW ₂ and the guide members GDL ₁ , GDL ₂ , GDR ₁ , and GDR ₂ . Its transfer is blocked. This supplies the screw body INSC or main star wheel MSTW ₁ ,
The force applied by the object BOT to MSTW ₂ and MSTW ₃ can be reduced, making it easier for the observer to remove the locked object BOT. In this case, the drive source of the trailing belt conveyor BLT ₂ is turned off according to the high level output of the detection means DET ₁ , and the driving source of the trailing belt conveyor BLT ₂ and the leading belt conveyor is turned off.
BLT ₁ , main star wheel MSTW ₁ , MSTW ₂ , MSTW ₃
etc. may be stopped.

When the observer removes the locked object BOT, the pressing force is removed from one side LV ₁ of the detection means DET ₁ , so the spring SP
LV ₁ on one side of DET ₁ and LV ₂ on the other side are pivot shafts
It is rotated clockwise around PVSHFT and returned to its initial position. Along with this return operation, the microswitch MS is turned on and the output signal is set to a low level. The electromagnet device EM is brought into a de-energized state, and the restraint of the brake disc BRD is also released. When the drive source of the trailing belt conveyor BLT ₂ is turned off, the drive source of the trailing belt conveyor BLT ₂ is turned on and the leading belt conveyor BLT ₁ is also restarted.

Although in the above description three main star wheels are mounted on the main star axle, it will be clear that the number may be reduced or increased as desired.
Similarly, the leading star axle and the trailing star axle are each equipped with two leading star wheels and two trailing star wheels, but the numbers may be reduced or increased as desired. The good news is obvious.

It will be clear that instead of a round belt, any suitable belt means may be used, such as a strip belt or the like. It will also be clear that the belt means need only be stretched between at least the leading star axle and the trailing star axle.

Main star axle Leading star axle Trailing star axle The supply screw body is connected to the rotating shaft of the driven wheel of the trailing belt conveyor via a gear train, but may be separate from the trailing belt conveyor if desired. It is obvious that the power source may be used to drive the vehicle. Similarly, the rotating shaft of the driving wheel of the leading belt conveyor is connected to the rotating shaft of the driven wheel of the trailing belt conveyor via a gear train, but this may also be powered by a separate power source from the trailing belt conveyor, if desired. It will be clear that it may also be driven by.

The number of recesses on the main star wheel is 15, and the number of recesses on the leading star wheel and the number of recesses on the trailing star wheel are 6, but these numbers may be changed as desired. The good news is obvious. That is, as long as the intervals between the recesses of the main star wheel, the intervals between the recesses of the leading star wheel, and the intervals of the recesses of the trailing star wheel match during operation, the number of recesses may be selected appropriately. should be obvious.

The object transfer device of the present invention has a transfer mechanism disposed between the leading belt conveyor that transports the object from the leading station and the trailing belt conveyor that transports the object to the trailing station. The extension directions of the trailing belt conveyors can be crossed. In the present invention, the transfer mechanism takes the object outward from the extending direction of the leading belt conveyor and then supplies it to the trailing belt conveyor, so that the transfer distance in the transfer mechanism can be expanded, and as a result, the object can be transported in the transfer mechanism. It is extremely useful to be able to carry out additional processing such as labeling, etc., and also to carry out abnormality inspections of objects, such as damage inspection.

In the object transfer device of the present invention, since the object supply screw body is disposed at the entrance of the transfer mechanism, even if the object transfer speed by the preceding belt conveyor increases, the objects are sequentially transferred to the preceding star wheel and the main star wheel. Can be reliably supplied. In addition, since a detection means is arranged at the inlet of the supply screw, it is possible to quickly respond if the object is not being fed properly to the supply screw.

In addition, in the object transfer device of the present invention, the buffer star wheel disposed upstream of the supply screw body cooperates with the guide member to function as object transfer speed control means for appropriately controlling the transfer speed of the object, i.e., reducing or inhibiting the transfer speed of the object. There is. It will be clear that the object transport speed control means may be formed by impellers or other suitable engagement means. It will also be clear that any suitable engagement means or the like which does not need to cooperate with the guide member may be used as means for controlling the speed of object transport. It will be clear that any suitable device other than pressurized air or electromagnetic devices may be used as the loading means for applying the load to the engagement means.

It should be noted that it is clear that the supply screw body and the guide members facing it via the preceding belt conveyor may be disposed on both sides of the preceding belt conveyor, so that the structure may be opposite to that described above.

[Brief explanation of drawings]

FIG. 1 shows an embodiment of the object transfer device of the present invention, and FIG.
The figure is the AA sectional view, Figure 3 is the BB sectional view, and the 4th figure is the BB sectional view.
The figure is a sectional view of the CC, FIG. 5 is a side view of the same, and FIG. 6 is a circuit diagram of the same. ACONC ₁ , ACONC ₂ ... recess, AND ... AND circuit, APLY ... trailing pulley, ASHFT ... trailing star axle, ASTW ₁ , ASTW ₂ ... trailing star wheel,
BOT...Object, BLT ₁ ...Advanced belt conveyor,
BLT ₂ ... Trailing belt conveyor, BRD... Brake disc, BRG ₁ , BRG ₂ ... Bearing, BRNG...
…Bearing, DET ₁ to DET ₃ …Detection means,
DPLY... Drive pulley, DSHFT ₁ ... Drive pulley shaft, DSHFT ₂ ... Drive shaft, EM... Electromagnet device, GD ₁ , GD ₂ ... Guide member, GDL ₁ , GDL ₂ ,
GDR ₁ , GDR ₂ ...Guide member, GPLY...Guide pulley, GSHFT...Guide pulley shaft, HSNG...Housing, ISC...Supply screw body, INV...
Inverting circuit, LV ₁ ...one side, LV ₂ ...other side,
MCONC ₁ ~ MCONC ₃ ... recess, MS ... micro switch, MSTW ₁ - MSTW ₃ ... main star wheel,
MSHFT...main star axle, PA...pressurized air system,
PCONC ₁ , PCONC ₂ ... recess, PPLY ... leading pulley, PSHFT ... leading star axle, PSTW ₁ ,
PSTW ₂ ... Leading star wheel, PVT... Pivotal support material,
PVSHFT...Pivot shaft, RBLT...Round belt,
SHF……rotating shaft, SHFT……rotating shaft, SP
...Spring, ST ₁ ...Advance station,
ST ₂ ... Trailing station, STW ₁ , STW ₂ ...
Buffer star car, TRSF... Watari mechanism.

Claims (1)

[Scope of Claims] 1. An object transfer device that sequentially transfers objects from a leading station to a trailing station by a belt conveyor, including: (a) transporting objects from the leading station to form a part of the belt conveyor; (b) a trailing belt conveyor that transfers objects to the trailing station and forming part of the belt conveyor; and (c) a main star disposed between the leading belt conveyor and the trailing belt conveyor. (d) a leading star wheel for transferring objects from said leading belt conveyor towards a recess in said main star wheel; and (e) a first star wheel disposed along one side of said leading belt conveyor. a guide member; and (f) a helical groove disposed along the other side of the leading belt conveyor and opposite the first guiding member for transporting objects toward the leading star wheel with the first guiding member. (g) a trailing star wheel for transferring objects from a recess in the main star wheel toward the trailing belt conveyor; and (h) a leading star mounted on the leading star wheel. an object that is suspended between at least a shaped axle and a trailing star axle to which the trailing star wheel is attached, and is being transferred from the leading belt conveyor to the trailing belt conveyor, is pressed and held in the recess of the main star wheel. belt means; (i) object transfer speed control means for controlling the transfer speed of the object being transferred by the preceding belt conveyor near the upstream side of the supply screw body; and (j) upstream of the object transfer speed control means. (k) detecting whether an object exists between the object transfer speed control means and the supply screw body and outputting a first signal; (l) Judging from the logical product of the first signal and the second signal, an object is detected upstream of the object transfer speed control means; and a logic circuit that operates the object transfer speed control means to reduce the object transfer speed when there is no object between the object transfer speed control means and the supply screw body. An object transfer device characterized by: 2. An object transfer device according to claim 1, wherein the main star wheel comprises at least one main star wheel mounted on a common main star axle. 3. An object transfer device according to claim 1 or 2, characterized in that the leading star wheel comprises at least one leading star wheel mounted on a common leading star axle. 4. The object transfer device according to claim 3, wherein the concave portion of the leading star wheel is displaced rearward in the rotational direction. 5. According to any one of claims 1 to 4, wherein the rear star wheel comprises at least one trailing star wheel mounted on a common trailing star axle. The object transfer device described. 6. The object transfer device according to claim 5, wherein the concave portion of the trailing star wheel is displaced rearward in the rotational direction. 7. Claims characterized in that the main star wheel, the leading star wheel, and the trailing star wheel are connected to a rotating shaft of a driven wheel of the trailing belt conveyor via a gear train. The object transfer device according to any one of Items 1 to 6. 8. According to claim 7, the rotating shaft of the driving wheel of the leading belt conveyor is connected to the rotating shaft of the driven wheel of the trailing belt conveyor via another gear train. Object transfer device. 9. The first signal is at a high level when an object is present and is at a low level when an object is not present, and the second signal is at a low level when an object is present and at a high level when an object is not present. An object transfer device according to any one of claims 1 to 8. 10. The object transfer device according to claim 9, wherein the object transfer speed control means is rendered inactive in response to a low level state of the AND signal. 11. The object transfer speed control means includes (a) a second guide member disposed on both sides of the preceding belt conveyor near the upstream side of the supply screw body; and (b) a passage between the second guide members to the preceding belt conveyor. and (c) loading means for applying a load to the engaging means in response to a high level state of the AND signal output from the logic circuit. 11. The object transfer device according to claim 10, characterized in that the object transfer device comprises: 12. The engagement means is formed of a star wheel,
Claim 11, characterized in that said loading means comprises a brake disc mounted on the rotating shaft of said star wheel and a pressurized air device for decelerating said brake disc. The object transfer device described. 13. The engaging means is formed of an impeller,
Claim 11, wherein the load means comprises a brake disc mounted on the rotating shaft of the impeller and a pressurized air device for decelerating the brake disc. object transfer device. 14. Claim 1, wherein said main star wheel has a third guide member that ensures the transfer of an object by said leading star wheel towards a recess in said main star wheel.
Object transfer device as described in Section. 15: when the first guide member does not engage the object in the spiral groove of the supply screw body, generates a third signal to operate the object transfer speed control means;
The object transfer device according to claim 1 or 14, further comprising a third detection means for preventing the transfer of the object. 16. The first signal has a high level when an object exists and a low level when an object does not exist, and the second signal has a low level when an object exists and a high level when an object does not exist. An object transfer device according to claim 15. 17. The object transfer device according to claim 16, wherein the object transfer speed control means is rendered inactive in response to a low level state of the AND signal output from the AND circuit. 18. The object transfer speed control means includes (a) second guide members disposed on both sides of the preceding belt conveyor near the upstream side of the supply screw body; and (c) loading means for applying a load to the engaging means in response to the high level state of the AND signal. An object transfer device according to claim 17, characterized in that: 19. The engagement means is formed of a star wheel,
The loading means includes a brake disc mounted on the rotating shaft of the star wheel, a pressurized air device for decelerating the brake disc, and an electromagnetic device for stopping the brake disc. An object transfer device according to claim 18, characterized in that: 20. The object according to claim 19, wherein the pressurized air device is operated by a logical AND signal, and the electromagnetic device is operated by the third signal. Transfer device. 21 the pressurized air device reduces the rotational speed of the brake disk during the high level period of the AND signal and does not change the rotational speed of the brake disk during the low level period of the AND signal;
The electromagnetic device stops the rotation of the brake disk during the high level period of the third signal and does not change the rotation of the brake disk during the low level period of the third signal. Object transfer device according to scope 20. 22 The engaging means is formed of an impeller,
The load means includes a brake disk mounted on the rotating shaft of the impeller, a pressurized air device for decelerating the brake disk, and an electromagnetic device for stopping the brake disk. An object transfer device according to claim 18, characterized in that: 23. The pressurized air device according to claim 22, wherein the pressurized air device is operated by the AND signal, and the electromagnet device is operated by the third signal. Object transfer device. 24. the pressurized air device reduces the rotational speed of the brake disk during the high level period of the AND signal and does not change the rotational speed of the brake disk during the low level period of the AND signal;
The electromagnetic device stops the rotation of the brake disk during the high level period of the third signal and does not change the rotation of the brake disk during the low level period of the third signal. Object transfer device according to scope 23. 25. Object transfer according to any one of claims 15 to 24, characterized in that when the third signal becomes high level, at least the preceding belt conveyor is stopped. Device. 26 The third detection means rotates around a pivot shaft in response to one surface of the supply screw body pressed by an object that is not engaged in the spiral groove and one surface of the supply screw body that is pressed by the object. Claims 15 to 25 include a second surface and a microswitch that is driven in response to rotation of the other surface to generate the third signal. Object transfer device according to any one of the items.