JP2008110874A - Vessel conveying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vessel conveying device equipped with a drive in an inlet side and an outlet side respectively, and capable of conveying the vessel while suitably absorbing the speed difference between the drives without deforming the vessel. <P>SOLUTION: An intermediate moving body 10 wherein a going conveyance chain 1go and a returning conveyance chain 1ret are arranged to pull and work with each other through a pair of gears is constituted so as to be freely moved with respect to a force acting direction, and is incorporated in a halfway of a conveyance chain 1. Further, a gripper capable of gripping a nozzle part of the vessel is arranged on the conveyance chain 1 in equal intervals. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a container transport device, particularly a container transport device having a drive on each of an inlet side and an outlet side, which can transport a container without deforming it while suitably absorbing a wide speed difference between the drives. The present invention relates to a transport device.

  In a plastic container manufacturing line, a conveyor line having a conveyor structure has a driving source (drive) at each of a conveyance source and a conveyance destination, and is driven by these two drives. By the way, for example, the processing speed of the container molding apparatus and the processing speed of the sterilization filling apparatus in the next process are not exactly the same except that they share the same drive. The driving speed and the driving speed of the drive on the sterilization filling device side also do not match. When a speed difference occurs between these drives, either the transport line from the transport source to the transport destination or the return transport line from the transport destination to the transport source is loosened, There is a problem that the containers on the transport line collide or contact each other and deform in the case of a weak container, and the deformation causes clogging of the transport line. Therefore, in a conventional container transport device, a belt conveyor type temporary holding device that stores containers in a regular transport line is provided so that containers do not collide even if a speed difference occurs between drives. The two do not collide with each other (see, for example, Patent Document 1).

Japanese National Patent Publication No. 11-502175

In the above-described conventional container transfer device, binarization switching points for selecting either the transfer line or the temporary holding device are arranged on the inlet side and the outlet side of the transfer line, and when the container is clogged on the transfer line, By switching these two switching points to the primary holding device side, the temporary holding device is connected in series to the transfer line, and a part of the container on the transfer line is transferred to the primary holding device, which Is configured to be relaxed.
However, since switching at the binarization switching point is performed by so-called on / off control, if the speed difference between the drives is large, even if the primary holding device side is switched, the containers on the conveyor Colliding with each other caused problems such as deformation of the weak container and clogging of the line due to the deformation.
The present invention has been made in view of the problems of the prior art, and is a container transport device provided with a drive on each of the inlet side and the outlet side, and the container can be accommodated while suitably absorbing a wide speed difference between the drives. An object of the present invention is to provide a container transport device that can be transported without deformation.

In order to achieve the above object, in the container transfer device according to claim 1, the container transfer device is disposed between the first device on the inlet side and the second device on the outlet side, and on the first device side and the second device side. A container transfer device in which a transfer line is driven by a first drive and a second drive, respectively, and the drive speed of the first drive and the drive speed of the second drive are respectively represented by ω _a and ω _b , When the length of the transfer line Lgo from the apparatus to the second apparatus is La and the length of the return transfer line Lret from the second apparatus to the first apparatus is Lb, ω _a > for omega _b reduces and Lb increase La, collisions on the other omega _a <omega for _b comprises a drive speed adjusting means for increasing the and Lb reduces La, on the container between the transport line It is transported without contact.
In the container transport device, when ω _a > ω _b , that is, when the driving speed on the first device side is higher than the driving speed on the second device side, La increases (Lb decreases). ) To delay the arrival of the container at the inlet of the second device and prevent the containers from colliding or contacting each other. In the case of ω _a <ω _b , when the driving speed on the first device side is lower than the driving speed on the second device side, La decreases (Lb increases) and the container becomes the inlet portion of the second device. To prevent the process from stagnation in the second device.

3. The container conveying device according to claim 2, wherein the drive speed adjusting means includes at least one gear pair formed by winding a part of the Lgo and Lret conveying lines in a form of pulling each other. And an intermediate moving body that can move freely with respect to the pulling action direction.
In the container transport device, when ω _a > ω _b begins to be satisfied, the Lgo transport line is slackened, while the Lret transport line is stretched, so that the driving force Ta <(second gear in the gear on the first device side). Since the driving force Tb (in the gear on the device side) is generated, the intermediate moving body receives the force action on the second device side and moves to the second device side, and as a result, La increases and the container enters the inlet of the second device. It delays arrival and suitably prevents containers from colliding or contacting. Conversely, when ω _a <ω _b starts, the Lgo transport line is stretched, while the Lret transport line is slack, so that the driving force Ta> (in the gear on the first device side)> (on the second device side) Since the driving force Tb (in the gear) is generated, the intermediate moving body receives a force action on the first device side and moves to the first device side. As a result, La decreases and the container reaches the inlet of the second device. The process is preferably prevented from stagnation in the second device.

In the container transport device according to claim 3, the intermediate moving body includes a grooved tire or a wheel, and is configured to be able to freely move on a rail parallel to the tension acting direction. It was.
In the container transport device, when the speed difference is generated between the drives, the intermediate moving body receives a force action according to the speed difference and moves in the direction of the force action. The length La (Lb) of the transfer line is preferably increased and decreased, and the speed difference between the drives is preferably absorbed.

In the container transport device according to claim 4, the intermediate moving body is kept within a predetermined moving range by adjusting the driving speeds of the ω _a and the ω _b while detecting the position of the intermediate moving body. It was supposed to be configured.
In the container transport device, when a speed difference occurs between the drives, the intermediate moving body is configured to automatically move in a direction corresponding to the speed difference. It becomes possible to grasp the speed difference between the two. Therefore, the speed difference between the drives and the amount of movement from the neutral position of the intermediate moving body preferably correspond to each other, and by previously grasping the moving range of the intermediate moving body corresponding to the target speed difference between the drives. The position of the intermediate moving body can be detected and the speed difference between the drives can be controlled to a target value.

The container transport device according to claim 5 is configured to control the first drive and the second drive such that a variation rate of each driving speed of the ω _a and the ω _b is within 5%. It was decided that
With the above-described configuration, in the container transport device, the intermediate moving body moves within the range of a predetermined stroke, and preferably absorbs the speed difference between the drives, thereby suitably preventing the container from colliding or contacting.

In the container transfer device according to claim 6, the first device is a container forming device and the second device is a sterilization filling device.
In the container conveying device, the container forming device is transferred from the container forming device to the sterilizing and filling device without absorbing the drive speed difference between the first drive on the container forming device side and the second drive on the sterilizing and filling device side. Container conveyance will be made suitably.

In the container transport device according to claim 7, the container gripping means for gripping the nozzle portion of the container is arranged at equal intervals with respect to the transport line.
In the said container conveying apparatus, it becomes applicable with respect to conveyance of a thin container with a thin trunk | drum by setting it as the said structure.

In the container transport device according to the eighth aspect, the container fixing means for inserting and transporting the mandrel into the mouth of the container is arranged at equal intervals with respect to the transport line.
In the said container conveying apparatus, it becomes applicable with respect to conveyance of a thin container with a thin trunk | drum by setting it as the said structure.

In the container transport device according to claim 9, a seal member is disposed on the outer peripheral surface of the mandrel.
In the container transporting device, the air inside the container is sealed and the container has a proof strength by the above configuration, and in addition to the normal inverted state due to the sliding resistance between the nozzle inner peripheral surface of the container and the sealing member. In addition, containers can be transported in an upright state or lying down, and in addition, containers can be transported at high speeds.

In the container transport device according to claim 10, the single container fixing means includes a plurality of mandrels.
In the said container conveyance apparatus, it becomes possible to convey a container in multiple rows (parallel) by setting it as the said structure.

The container transport device according to claim 11, wherein when the sterilization and filling device is stopped, the container forming device is stopped after completion of forming the work in progress of the container forming device and receiving the work in progress. It was decided that
In the said container conveying apparatus, it becomes possible to stop a container shaping | molding apparatus by making it the said structure, without leaving a work-in-process in the inside of a container shaping | molding apparatus.

In the container transport device according to claim 12, the amount of the container transport device is set to a minimum amount until the molding of the work-in-process in the container molding device is completed when the sterilization and filling device is stopped. It was.
In the said container conveying apparatus, it becomes possible to stop a container shaping | molding apparatus by making it the said structure, without leaving a work-in-process in the inside of a container shaping | molding apparatus.

  According to the container transport device of the present invention, when a speed difference occurs between the drive on the inlet side and the outlet side, the intermediate moving body receives a force action corresponding to the speed difference and moves in the force acting direction, It is configured so that the tension of the line is uniform and the slack of the conveying line is eliminated. In addition, a gripping mechanism that grips the nozzle portion of the container is disposed at equal intervals with respect to the transport line. This makes it possible to adjust the supply of containers between devices with speed fluctuations without contact between the containers, and as a result, transports to the next device without deforming the container while absorbing speed fluctuations between the devices. You will be able to

FIG. 1 is an explanatory diagram of a main part configuration showing a container supply adjusting device 100 which is an example of a container transport device of the present invention.
The container supply adjusting device 100 includes a transport chain 1 as a transport line for transporting a container manufactured by the container forming apparatus (A) to the sterilization and filling apparatus (B), and a driving force from the container forming apparatus (A). Receiving side drive 2 that drives the conveying chain 1, a sprocket 3 that transmits the driving force, an out side drive 4 that drives the conveying chain 1 by receiving the driving force from the sterilization filling device (B), and the in side An intermediate moving body 10 that absorbs the drive speed difference between the drive 2 and the out side drive 4, and a control device 5 that detects the position of the intermediate moving body 10 and controls the driving speed of the in side drive 2 and the out side drive 4. It is comprised. In this embodiment, four intermediate moving bodies 10 are connected and incorporated in the transport chain 1. Further, for convenience of explanation, the same transport chain 1 is traveled along the transport chain from the in-side drive 2 to the out-side drive 4 and the transport chain 1go is transported from the out-side drive 4 to the in-side drive 2. The return transport chain 1ret will be distinguished.

  As shown in FIG. 3, the transport chain 1 is provided with a plurality of bottle gripping mechanisms that grip the nozzle portion of the container at equal intervals.

  The in-side drive 2 and the out-side drive 4 are so-called drive sprockets and are driven by a power machine such as an electric motor.

  The sprocket 3 is a power transmission mechanism that transmits power via the transport chain 1.

  The control device 5 controls the drive speed (number of rotations) of the power unit that drives the in-side drive 2 and the out-side drive 4 while detecting the position of the intermediate moving body 10, and moves the intermediate moving body 10 within a predetermined moving range. (Stroke L) is controlled. In addition, the operation of the container forming device (A) and the sterilizing and filling device (B) is stopped.

  The details of the intermediate moving body 10 will be described later with reference to FIG. 2, but a so-called differential device absorbs the speed difference Δω between the drives in the in-side drive 2 and the out-side drive 4. That is, the intermediate moving body 10 forms a form in which the outbound conveyance line 1go and the return conveyance line 1ret are tensioned via the gear pair, and can move freely on the tension line. It is configured. Thus, when Δω = 0, the intermediate moving body 10 is stationary near the neutral position, but when Δω ≠ 0, a force is applied to the intermediate moving body 10 in the (+) direction or the (−) direction. To eliminate the slack of the transport chain 1 and thus prevent the container from colliding or contacting. Further, the intermediate moving body 10 is controlled by the control device 5 so as to be within a predetermined movement range (stroke L) in advance.

FIG. 2 is an explanatory view showing the intermediate moving body 10 according to the present invention. 2A is a plan view, and FIG. 2B is a cross-sectional view taken along the line AA in FIG.
The intermediate moving body 10 includes an in-side sprocket 11 around which the outbound transport chain 1go is wound, an out-side sprocket 12 around which the return transport chain 1ret is wound, a table 13 to which these are attached, and the table 13 in a linear direction. It is configured to include a wheel 14 that can freely move, a connecting rod 15 that connects the plurality of intermediate moving bodies 10, and a bracket 16 that supports and fixes the connecting rod 15.

If Δω = (rotational speed of the in-side drive 2) ω _a − (rotational speed of the out-side drive) ω _b , the intermediate moving body 10 is stationary at the neutral position when Δω = 0, but Δω> 0. In this case, that is, when the processing speed of the container forming apparatus (A) is higher than the processing speed of the sterilization and filling apparatus (B), if the intermediate moving body 10 is fixed and stationary, the outgoing transport chain 1go is loosened and returned. The transport chain 1ret is in a tensioned state, and the chain tension is different, and the transport chain 1go and the return transport chain 1ret are different. However, since the intermediate moving body 10 can freely move on the rail R, the intermediate moving body 10 is pulled by the return conveying chain 1ret having a large chain tension and moves in the (+) direction so as to make the chain tension constant. . As a result, the length Lgo of the outbound transport chain 1go increases, and on the contrary, the length Lret of the transport chain 1ret decreases. If Δω> 0 as it is, the intermediate moving body 10 continues to move in the (+) direction, but the position of the intermediate moving body 10 is detected by the proximity switch AS, and the detection signal is transmitted to the control device 5. Decreases the rotational speed of the in-side drive 2 having a relatively high rotational speed, and sets Δω = 0 to control the intermediate moving body 10 within a predetermined movement range.

  On the other hand, when Δω <0, that is, when the processing speed of the sterilizing and filling apparatus (B) is higher than the processing speed of the container forming apparatus (A), if the intermediate moving body 10 is fixed and stationary, the outgoing transport chain 1go is stretched, the return transport chain 1ret is loosened, and the tension of the chain goes and the transport chain 1go and the return transport chain 1ret are different. However, since the intermediate moving body 10 can freely move on the rail R, the chain is pulled by the transport chain 1go having a large chain tension and moves in the (−) direction to make the chain tension constant. . As a result, the length Lret of the return transport chain 1ret increases, and conversely, the length Lgo of the transport chain 1go decreases. If Δω <0, the intermediate moving body 10 continues to move in the (−) direction, but the position of the intermediate moving body 10 is detected by the proximity switch AS, and the detection signal is transmitted to the control device 5. Lowers the rotational speed of the out-side drive 4 having a relatively high rotational speed so that Δω = 0 and controls the intermediate moving body 10 within a predetermined movement range.

  Further, when the intermediate moving body 10 exceeds the predetermined moving range, the limit switch LS is activated, and the container forming device (A) (in-side drive 2) or the sterilization filling device (B) (out-side drive). 4) is stopped.

  Further, when the intermediate moving body 10 is within the predetermined movement range, if the container forming apparatus (A) stops for some reason, the in-side drive 2 will also stop, and Δω <0. Although the intermediate moving body 10 moves in the (−) direction, the limit switch LS is activated and the sterilization and filling apparatus (B) is also stopped.

  On the other hand, when the intermediate moving body 10 is within the predetermined movement range, if the sterilization and filling device (B) is stopped for some reason, the out-side drive 4 is also stopped, and Δω> 0, The intermediate moving body 10 moves in the (+) direction, but the limit switch LS is activated and the container forming apparatus (A) is also stopped. In this case, the container forming apparatus (A) is configured to stop after the work in process in the container forming apparatus (A) is completed and the work in progress is transferred to the transport chain 1. . In this case, the amount of work in progress in the container supply adjusting device 100 is the minimum amount until the work in progress in the container forming apparatus (A) is completed when the sterilization and filling apparatus (B) is stopped. .

FIG. 3 is an explanatory view showing the gripper 20 according to the present invention.
The gripper 20 as a container gripping mechanism includes an arm pair 21 that fits the nozzle portion of the container, a spring 22 that fixes a grip of the arm pair 21, a bolt 23 that fixes the arm pair 21 and serves as a rotation axis thereof. The gear pair 24 that meshes with the arm pair 21 and the chain attachment 25 that attaches the arm pair 21 to the transport chain 1 are provided.

  The arm pair 21 can be slightly expanded because of the clearance 21a formed at the center, and thus the nozzle portion of the container can be gripped and released. As a result, the containers are placed on the transport chain 1 in a stable posture and adjacent containers are separated from each other, and the containers can be transported to the sterilization and filling device (A) without colliding with each other.

  The container transport posture is inverted in this embodiment, but may be upright. In addition, when the container supply adjusting device 100 is installed in a normal building other than a clean room, the container is inverted as shown in this embodiment so that dust and dirt are not mixed inside the container to be transported. It is preferable to be conveyed in a state.

  Further, as a means for fixing the container on the transport chain 1, a mandrel 30 described later can be used in addition to the gripper 20 as a container gripping mechanism.

FIG. 4 is an explanatory view showing a mandrel 30 according to the present invention.
The mandrel 30 as a container fixing means is inserted into the nozzle of the container and holds the container while preventing the container from falling down in an inverted state, and the mandrel head 31 is fitted to the pin fastener 11 to convey the mandrel head 31. A chain attachment 32 integrated with the chain 1 is provided. The chain attachment 32 is fixed to the pin fastener 11 by the mandrel fastener 12, and as a result, the mandrel 30 is incorporated into the transport chain 1. An insertion hole for fitting the chain attachment 32 is formed in the head of the pin fastener 11 that integrates the outer plate 13, the inner plate 14, and the roller 15.

FIG. 5 is an explanatory view showing a mandrel 40 according to the present invention.
The mandrel 40 as a container fixing means is the same as the mandrel 30 except that a circumferential groove (not shown) is formed on the outer peripheral surface of the mandrel head 41 and an O-ring 42 is provided as a seal member. It is a configuration. However, the air inside the container is sealed by the O-ring 42 and the mandrel head 41, and as a result, even when some external force (load) acts on the container during the transportation, the sealed air buffers the external force. The container is preferably prevented from being deformed. Further, since the O-ring 42 is tightly attached to the inner peripheral surface of the nozzle portion of the container, a sliding resistance is generated between the nozzle inner peripheral surface of the container and the O-ring 42, and the container is in the axial direction. It becomes difficult to come off.

  Alternatively, in place of the O-ring 42, the mandrel head is divided into two parts, and a spring is arranged perpendicular to the dividing surface, and the mandrel head is inserted into the nozzle of the container with the spring contracted. The spring extends so that the outer peripheral surface of the mandrel head is in close contact with the inner peripheral surface of the nozzle of the container, and as a result, a sliding resistance force is generated, and the container is less likely to come off in the axial direction. As a result, in addition to the normal inverted state, the container can be transported in an upright state or a sideways state, as well as in a high-speed state.

FIG. 6 is an explanatory view showing a mandrel 50 according to the present invention. 6A is a plan view of the mandrel 50, and FIG. 6B is a sectional view taken along the line BB of FIG. 6A.
The mandrel 50 as a container fixing means includes a plurality of mandrel heads 31 and includes a rectangular mandrel plate 51 having a long axis in a direction orthogonal to the traveling direction of the transport chain 1 and a small aspect ratio. It can be transported in multiple rows (parallel). The mandrel plate 51 is fitted to the pin fastener 11 via the chain attachment 32 and is fixed by the mandrel fastener 12. The mandrel head 31 is fixed on the mandrel plate 51 with bolts, but may be welded. It is also possible to use a mandrel head 41 instead of the mandrel head 31. Furthermore, the mandrel plate 51 can be configured to be attached to the transport chain 1 in a state where it is supported in a cantilever manner.

  According to the container supply adjusting device 100, when a speed difference is generated between the in-side drive 2 and the out-side drive 4, the intermediate moving body 10 receives a force action according to the speed difference, and the direction of the force action And the tension of the transport chain 1 is made uniform so that the slack of the transport chain is eliminated. In addition, grippers 20 that hold the nozzle portion of the container are disposed at equal intervals with respect to the transport chain 1. This makes it possible to adjust the supply of containers between devices with speed fluctuations without contact between the containers, and as a result, transports to the next device without deforming the container while absorbing speed fluctuations between the devices. You will be able to

By the way, when both the container shaping | molding apparatus A and the sterilization filling apparatus B stop for a long time, in order to restart, it is necessary to start up these apparatuses again. At this time, it is necessary to start up the container forming apparatus A and the sterilizing and filling apparatus B individually under optimum conditions, and there may be a time difference until the apparatuses are completely started up.
The container supply adjusting device 100 moves the intermediate moving body 10 in the (+) direction or the (−) direction, and thereby detects the operating speed difference between the container forming apparatus A that is the previous process and the sterilization and filling apparatus B that is the subsequent process. Although it can be absorbed, the speed difference due to the time difference at the time of start-up and the like is quite large, so the stroke (movement range) of the intermediate moving body 10 may not be able to cope with it.
Therefore, by providing a clutch mechanism in each of the in-side drive 2 and the sterilizing and filling device B out-side drive 4 of the container forming apparatus A, the forming machine (container forming apparatus A) and filling machine can be performed without moving the intermediate moving body 10. Both (the sterilizing and filling apparatus B) can be stably started by a predetermined method. The clutch mechanism may be provided in each of the in-side drive 2 and the out-side drive 4 or may be provided in either one.

  Further, during the operation of the line, either the container forming apparatus A or the sterilizing and filling apparatus B may stop. In this case, the other operating apparatus may be operated as it is, or may be stopped after a predetermined time has elapsed, and measures may be taken so as not to cause product disposal. Then, for the container supply adjusting device 100 which is a transport device, a certain amount of bottles are accumulated (accumulated) from the container forming device A according to the speed of the operating device, or accumulated in the transport device. It is required to deliver the bottle to the sterilization and filling apparatus B.

  From FIG. 1, the bottle accumulation rate of the container supply adjusting device 100 is proportional to the length Lgo of the outgoing transport chain 1go. Therefore, when the container forming apparatus A or the sterilizing and filling apparatus B is stopped, if the intermediate moving body 10 moves in the (+) direction, the amount of bottle accumulation in the container supply adjusting apparatus 100 increases, and conversely the intermediate movement. If the body 10 moves in the (−) direction, the bottles of the container supply adjusting device 100 will decrease. Even in such a case, the container supply adjusting device 100 according to the present invention operates in synchronization with the active device and the drive, so that the container supply adjusting device 100 operates and the intermediate moving body 10 is also in the (+) direction or The intended purpose is achieved by moving in the (−) direction, but in consideration of the fact that a speed difference suddenly occurs during high-speed conveyance, etc., both the in-side drive 2 and the out-side drive 4 can be used. A speed change mechanism (not shown) may be provided to cause the container supply adjusting device 100 to generate a speed difference. Note that the speed change mechanism may be configured by combining a clutch and a gear, or may be configured by combining a clutch and a brake. In addition, the speed change mechanism may be configured by a clutch and a separate low-speed drive that is connected only when the clutch is disengaged.

Furthermore, assuming that the operating speed of the sterilizing and filling apparatus B is slightly faster than the operating speed of the container forming apparatus A, it may be required to operate continuously with the bottle accumulated (accumulated) to some extent.
Even in such a case, by using the speed change mechanism, a speed difference is generated in the container supply adjusting device 100 without interlocking with the drive synchronized with the device, and as a result, the intermediate moving body is moved to a predetermined amount. The bottle can be accumulated. When a certain amount of bottles are accumulated in the transport device (container supply adjustment device), the container supply adjustment device 100 is connected to the original rotating machine again, so that the container supply adjustment device 100 stores a predetermined amount of the bottle while the intermediate portion (neutral portion). ) Continuous operation can be performed at more moved locations

  Furthermore, it is possible that the bottle in the molding machine is out of shape due to a molding failure, or it is out of pinhole inspection and rejected outside the line. In this case, even if the container supply adjusting device 100 which is a transport device is out, the tooth is lost. In order to prevent this, the clutch mechanism of the in-side drive 2 is temporarily disengaged (the clutch mechanism of the out-side drive 4 remains on), and the driving of the in-side drive 2 is stopped for the timing of being out (during this time) Since the clutch of the out-side drive 4 remains on, the intermediate moving body 10 moves in the (+) direction), and the bottle delivery on the conveying device can be prevented by stopping the bottle delivery. .

  By the way, in the said container supply adjustment apparatus 100, the intermediate | middle moving body 10 is an aggregate | assembly which put together each sprocket pair into one by the connecting rod 15. FIG. However, the present invention is not limited to this, and the connecting rod 15 may be omitted so that each pair of sprockets can be moved independently. As a result, the length Lgo of the outgoing transport chain 1go can be adjusted more accurately. As a result, the container supply adjusting device of the present invention can accurately absorb the difference in operating speed between the container forming device A and the sterilizing and filling device B, and can accurately adjust the bottle accumulation rate.

  The container supply adjusting device of the present invention can be suitably applied to the conveyance of easily deformable containers immediately after molding, particularly the conveyance of thin-walled containers immediately after molding.

It is principal part structure explanatory drawing which shows the container supply adjustment apparatus which is an example of the container conveying apparatus of this invention. It is explanatory drawing which shows the intermediate moving body which concerns on this invention. It is explanatory drawing which shows the gripper which concerns on this invention. It is explanatory drawing which shows the mandrel which concerns on this invention. It is explanatory drawing which shows the other example of the mandrel which concerns on this invention. It is explanatory drawing which shows the multi-row mandrel which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conveyance chain 2 Inn side drive 3 Sprocket 4 Out side drive 5 Control apparatus 10 Intermediate moving body 20 Gripper 30,40,50 Mandrel 100 Container supply adjustment apparatus

Claims (12)

Container transport which is arranged between the first device on the inlet side and the second device on the outlet side and is driven by a transport line by the first drive and the second drive on the first device side and the second device side, respectively. The drive speed of the first drive and the drive speed of the second drive are respectively represented by ω _a and ω _b, and the length of the transport line Lgo from the first device to the second device. When La and the length of the return conveyance line Lret from the second device to the first device are Lb, if ω _a > ω _b , La is increased and Lb is decreased, while ω _a In the case of <ω _b , a container transport device is provided that includes a driving speed adjusting unit that decreases La and increases Lb, and the containers are transported without colliding or contacting on the transport line.   The drive speed adjusting means includes at least one gear pair in which a part of the Lgo and Lret conveying lines are wound around each other in a form that pulls each other, and is free in the direction of the pulling action. The container transport device according to claim 1, wherein the container transport device is configured by an intermediate moving body that can move to the center.   The container transfer device according to claim 2, wherein the intermediate moving body includes a grooved tire or a wheel, and is configured to freely move on a rail parallel to the pulling action direction. 4. The structure according to claim 2, wherein the intermediate moving body is maintained within a predetermined moving range by adjusting the driving speeds of the ω _a and the ω _b while detecting the position of the intermediate moving body. Container transport device. 5. The system according to claim 1, wherein the first drive and the second drive are controlled such that a variation rate of each drive speed of ω _a and ω _b is within 5%. The container conveying apparatus of description.   The container transport device according to claim 1, wherein the first device is a container forming device and the second device is a sterilizing and filling device.   The container transport apparatus according to claim 1, wherein container gripping means for gripping the nozzle portion of the container is disposed at equal intervals with respect to the transport line.   The container transport device according to claim 1, wherein container fixing means for inserting and transporting a mandrel into the mouth of the container is disposed at equal intervals with respect to the transport line.   The container transport device according to claim 8, wherein a seal member is disposed on an outer peripheral surface of the mandrel.   The container transport device according to claim 8 or 9, wherein the single container fixing means includes a plurality of mandrels.   The container conveyance according to claim 6, wherein when the sterilizing and filling apparatus is stopped, the container forming apparatus is stopped after the formation of the work in progress of the container forming apparatus is completed and the work in progress is received. apparatus.   The container conveyance device according to claim 11, wherein the amount of the container conveyance device is the amount until the molding of the work in process in the container molding device is completed when the sterilization and filling device is stopped.

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