JP4224274B2 - Bottle transport chain device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a transport device for a hollow container made of a thermoplastic synthetic resin, and more particularly, to a transport chain device for transporting a synthetic resin hollow container that has just been blow-molded in a state of being hung by a neck and neck. Is.
[0002]
[Prior art]
In a production line for producing a hollow container such as a bottle by blow-molding a thermoplastic synthetic resin, a belt conveyor or an air conveyor has been conventionally used as an apparatus for conveying the molded bottle to the next step. ing.
[0003]
[Problems to be solved by the invention]
However, in the conveyance of bottles by a belt conveyor, a container such as a bottle often falls during the conveyance of the bottle, especially at the start or stop of the conveyance device. There is a problem that bottles are likely to fall at the entrance, and the machine on the production line must be stopped each time a hollow container falls, so that the fallen containers must be realigned or removed. It was.
[0004]
In addition, the bottles fall by the air conveyor because the bottle neck is hung on the rail provided at the opening on the lower surface of the wind tunnel box, and the air flow is blown to the neck of the bottle by the blower. Although this phenomenon can be prevented, there is a problem that the bottle is easily damaged because friction occurs between the rail and the bottleneck over the entire length of the bottle conveyance path.
Furthermore, since the bottle is conveyed by the air flow, the conveyance speed is likely to become unstable due to fluctuations in air pressure, etc., which causes a problem that the bottle sent later is hit against the stationary bottle and deformed. was there.
In addition, there is a problem that dust is easily generated in the air flow from the blower, and therefore, there is a risk that the dust is mixed into a hollow container such as a bottle.
[0005]
Therefore, the invention of the present application is provided with a protective member that prevents the hollow container such as the bottle from being damaged in the transport chain device that transports the hollow container such as the bottle, in order to solve the problems of the prior art as described above. In particular, it is an object of the present invention to provide a transport chain device that suspends and transports a hollow container of a bottle so that the container such as a bottle does not fall down or is not damaged at all.
[0006]
[Means for Solving the Problems]
In order to achieve the above-described technical problem, the present invention provides a transport chain device that transports a hollow container such as a bottle, and a transport chain in which a link main body and a bottle transport member are integrated with a transport path such as a bottle interposed therebetween. The transport chain device is configured so as to be transported in a suspended state by holding the neck portion of the bottle or the like by the transport members such as the bottles on both sides provided with protective members.
[0007]
Furthermore, as a specific means of the transport chain device, a chain link integrally comprising a link main body comprising a pin joint link, a bush and a transport tool mounting portion, and a bottle transport tool having a bottle support plate, A conveying chain is formed by connecting with a connecting pin, and the conveying chain is supported by sprockets at both ends and a guide member at an intermediate portion to constitute a conveying chain device. In order to prevent the bottle from being damaged, a chain drive is installed by placing a transport chain device across the bottle transport path so that the bottle neck is held from both sides by the bottle support plate. By driving the sprocket, the bottle is held and transported while being suspended.
[0008]
Further, as a conveying member for a hollow container such as a bottle, a bottle conveying member provided with a supporting plate such as a bottle is formed of a low friction material, and the side surfaces of both end portions of the bottle supporting plate are arranged with the lower end edges in the conveying direction. The bottle is formed so as to incline forward, and the bottle is maintained in a suspended state when the bottle stays so as to slide on the support plate.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, one embodiment of the present invention will be described with reference to the drawings.
The usage mode of the transport chain device of the present invention is configured as indicated by the generic name A in FIGS. 1 and 2, and the transport chain device A has an annular shape in the mouth and neck as indicated by reference numeral B. A hollow container such as a bottle in which a holding part is formed is transported in a suspended state.
The transport chain device A has a belt conveyor C1 that feeds bottles from the previous process at the front, and a belt conveyor C2 and a feed screw D that supply the bottles to the next process at the rear. It is attached.
[0010]
The transport chain device A is configured by arranging a pair of chain devices A1 and A2 on both sides of a passage through which bottles are transported. Each chain device is connected to a machine frame (not shown) via a support frame 1. The chain devices A1 and A2 are each provided with a transport chain 2 and a sprocket 3 for rotating the chain, and are formed so as to circulate.
[0011]
Chain guide members 5 and 6 are attached to both sides of the support frame 1 via support rods 4, and a free sprocket 7 is adjusted in the front-rear direction at the rear end of the support frame 1. It is attached as possible.
The transport chain 2 is supported rotatably by guide members 5 and 6 provided with a drive sprocket 3 and a protective plate and an idle sprocket 7, and the chain guide members 5 and 6 are rotated by rotating the drive sprocket 3. It has a structure that can be rotated along.
[0012]
Next, the link structure of the transport chain 2 will be described.
As shown in FIG. 3, each chain link 9 of the transport chain used in the present invention includes a link body 10 and a bottle transport member 11 formed integrally with the link body.
The chain link 9 is optimally molded using a plastic having wear resistance and low friction as a material.
As the plastic material, for example, polyamide, polyacetal, GRPET, PBT, and other resins can be used. However, when the bottle is made of polyethylene terephthalate (PET) resin, polyacetal resin is preferable.
[0013]
As link bodies constituting the chain, joint links, gold joint links, offset links and the like are generally known. However, as a link body 10 of the present invention, a link plate and a gap fit are integrated. The so-called offset link type is optimal, and includes a pin joint link portion 12, a bush portion 13, and a conveying member attachment portion (attachment portion) 14.
As shown in FIG. 3, the pin link portion 12 is provided with link plates (so-called offset plates 15) 15a and 15b in an offset shape so as to face the upper and lower end faces. 15a and 15b are provided with insertion holes 17a and 17b of the connecting pin 16, and the upper and lower end surfaces of the link plates 15a and 15b are surfaces 18a inclined toward the conveying member mounting side to prevent the link plates 15a and 15b from coming off. , 18b.
The bush portion 13 is supported by support arms 19a and 19b connected to the link plates 15a and 15b and a conveying member mounting portion 14, and an insertion hole 20 for the connecting pin 16 is formed at the center of the bush portion 13. It is drilled and formed into a chain link by pin connection.
[0014]
The bottle transporting member 11 is formed in an approximately L shape comprising an attachment plate part 21 connected to the attachment part 14 of the link body 10 and a bottle support plate 22 extending horizontally from the attachment plate part, and The end surfaces 23 on both sides of the bottle support plate 22 are formed in inclined surfaces so that the lower end edges are forward with respect to the transport direction (X).
Further, as shown in FIG. 6, a protection plate 38 that protects the bottle from being damaged can be adjusted via a liner 37 on the lower end surfaces of the chain guide members 5 and 6 of the transport chain device including the above-described chain link. And is provided with a screw 36.
[0015]
As shown in FIG. 3B, the link body of the present invention has a spline or keyway-shaped protrusion 24 formed at the upper end portion of the connection pin 16, and the connection pin 16 has an upper end. The portion is fitted into the insertion hole 17a of the link plate 15a, and the lower end is fitted into the insertion hole 17b.
Then, the bush 13 portion of the next link body 10 is engaged inside the link plates 15a, 15b of one link body 10, and the link plates 15a, 15b and the bush 13 are connected by the connecting pin 16, A conveying chain 2 as shown in FIG. 4 is formed.
[0016]
In the above-described embodiment, the attachment plate portion 21 of the bottle conveying member 11 and the attachment portion 14 of the link body 10 are integrally formed. However, the conveying chain device according to the present invention is as described above. The bottle conveying member 11 and the link main body 10 may be formed separately using different materials, and may be integrally attached by joining them with appropriate means.
In that case, the link body 10 can be formed of various materials such as metal and other commonly used materials, and only the bottle conveying member 11 can be formed of a wear-resistant, low-friction material. is there.
[0017]
Next, each member which comprises a conveyance chain apparatus is demonstrated.
As shown in FIG. 1, the transport chain device of the present invention constructed as described above has a pair of chain devices A1 and A2 on both sides of the bottle transport path, and the mouth and neck of the bottle B to be transported. As shown in FIG. 1, a mounting plate 33 provided with a long hole 32 for position adjustment is attached to the support frame 1 by screws 34 at the rear end of the support frame 1. The floating sprocket 7 is fixed to the mounting plate 33 by a screw 35 so as to be adjustable.
[0018]
Further, as shown in FIG. 6, a neck portion provided with a holding ring (neck ring) 28 for conveyance is formed in the lower portion of the mouth / neck portion 27 of the bottle B, as shown in FIGS. As shown, the mouth and neck of the bottle B is supported by the support plate 22 of the bottle conveying member 11 attached to the conveying chain 2 disposed on both sides of the bottle conveying path, and a protective plate is provided below the guide members 5 and 6. The chain devices A1 and A2 are disposed so that the bottle transporting member 11 provided with a 38 can be held in a suspended state sandwiched from both sides so as not to damage the bottleneck portion provided with the holding ring 28. ing.
[0019]
As shown in FIG. 6, the chain guide members 5 and 6 configured as described above are provided with a groove-shaped guide groove 40 for guiding the link body 10 of the transport chain 2. The inner side walls of the grooves are formed with clamping surfaces 41 a and 41 b that are inclined surfaces with inner tapered shapes that coincide with the upper and lower surfaces 18 a and 18 b of the link plates 15 a and 15 b, respectively. Guided in contact with the bottom wall 42.
And the protection plate 38 provided in the lower end surface of the said chain guide members 5 and 6 (or machine frame 1) is provided so that it may protrude between the support plate 22 of the said bottle conveyance member 11, and the shoulder part of the bottle B. FIG. In addition, the shape and size of the bottle are formed by a set screw and a screw hole formed in the shape of a long hole so that the front end portion of the protective plate 38 does not come into contact with or bite the mouth-neck portion of the bottle. It is fixed to the position corresponding to.
[0020]
In the transport chain device of the present invention configured as described above, in the transport process of bottles and the like, the link body 10 of the transport chain 2 is disengaged from the guide groove 40 of the chain guide members 5 and 6 during transport of the bottle. Therefore, the shape of the chain guide members 5 and 6 arranged on both sides can be made into various curved shapes, so that the conveyance path can be freely formed.
[0021]
Next, the usage mode of a conveyance chain apparatus is demonstrated.
After the blow molding is completed, the bottle B which is a molded product taken out from the molding die of the blow molding device is transported to the transport chain device A of the present invention via the belt conveyor C1, as shown in FIG. In the transport chain device of the present invention, the neck portion of the bottle is sandwiched and held from both sides by the support plates 22 of the bottle transport member 11 of the transport chain 2 and is in a suspended state. Be transported.
At this time, when the bottles fall on the belt conveyor C1 on the feeding side, the fallen bottles are dropped from the conveyor without being suspended by the transport chain, so that only the bottles in a normal state are transferred to the transport chain device A. Sent.
[0022]
Then, when the normally suspended bottle B is sent onto the belt conveyor C2 to be supplied to the next process by the transport chain device having the above-described configuration, the bottle B is kept at a constant interval by the feed screw D. Sent to the next work process.
However, at that time, the bottle B may be temporarily stopped, but the bottle conveying member 11 is made of a low friction material, and the side cross section of the bottle support plate 22 is inclined forward in the conveying direction. Since the neck portion of the bottle B is not caught on the side surface of the support plate 22, the bottle B slides smoothly on the support plate, and the bottle B is kept stable while being suspended. However, the bottle may be transported in a slightly tilted state due to being transported at a high speed or for other reasons.
[0023]
Even in such a case, as described above, the protective plate 38 made of a low friction material is provided on the lower end surfaces of the chain guide members 5 and 6 between the support plate 22 of the bottle conveying member 11 and the shoulder of the bottle B. If the bottle which is conveyed at the inlet of the screw or the like is stopped and the subsequent bottle is inclined, the protection plate 38 causes the shoulder of the bottle to be a chain member. And the bottle support plate 22 is not touched directly, and the space between the holding ring (neck ring) 28 and the support plate 22 becomes a smooth active state. In addition, strong friction does not occur and the bottle is damaged, and the support plate does not bite and damage the shoulder portion of the bottle.
[0024]
In the above-described embodiment, an example using a blow-molded bottle as the object to be conveyed has been described. However, the conveyance chain device of the present invention has a preform formed on a preform and a flange on the upper edge. It will be easily understood by those skilled in the art that the present invention can also be used for transporting cup-shaped containers and other hollow containers provided with other holding portions.
[0025]
【The invention's effect】
By adopting the above-described configuration, the invention of the present application can achieve the following operational effects.
When the bottle is sent to the next process from the transport device of the present invention, even if the bottle is temporarily stopped by the feed screw at the entrance of the next process, the bottle is not caught on the side surface of the support plate, It is kept smooth so as to slide on the support plate, the front and rear bottles do not collide violently, and the suspended state can be maintained and stably stopped.
Even if the bottle stops at the feed screw inlet or the like and is transported in a state where the subsequent bottle is tilted, the bottle shoulder is directly attached to the bottle support plate by providing a protective plate under the bottle support plate. Without touching the bottle, the bottle can slide smoothly between the support ring and the support plate, the bottle is not scratched or damaged, and the transport member is damaged by biting the bottle. Can be prevented.
[0026]
Also, the bottle's mouth and neck are held by holding the bottle from both sides with a bottle transport member attached to the transport chain, and the bottle is transported in a state where it is suspended at the neck, so the bottle falls over the transport line. There is nothing.
Even if a bottle that has fallen from the previous process is sent, the bottle will not drop from the neck, but will automatically drop from the belt conveyor and the next process device will not stop. Can be prevented.
[0027]
Furthermore, by forming the bottle transport member attached to the transport chain with a low friction material, it is possible to eliminate friction as much as possible between the bottle neck and the bottle transport member. Since only friction occurs, it is possible to prevent the bottle from being scratched by friction.
By changing the rotation speed of the sprocket, the conveyance speed can be easily controlled, and since it is fed at a chain pitch, the bottle conveyance speed is constant and the bottles before and after do not collide.
[0028]
Further, a protective plate 38 made of a low friction material is provided on the lower end surface of the chain guide members 5 and 6 so as to protrude between the support plate 22 of the bottle conveying member 11 and the shoulder of the bottle B. Even when the bottle transported at the entrance of the screw or the like is stopped and the subsequent bottle is tilted, the shoulder of the bottle directly touches the chain member or the bottle support plate 22 by the protective plate 38. Since there is a smooth active state between the holding ring (neck ring) 28 and the support plate 22 , the bottle may be damaged due to strong friction, or the support plate may be bitten into the shoulder of the bottle and damaged. There is no such thing as.
[Brief description of the drawings]
FIG. 1 is a plan view showing a chain transport device of the present invention.
FIG. 2 is a side view of the transport apparatus shown in FIG.
FIG. 3 (a) is a perspective view of a chain link used in the first embodiment in the chain transport device of the present invention.
FIG. 3 (b) is a cross-sectional view taken along line AA in FIG. 3 (a) showing a state in which two chain links are connected.
FIG. 4 is a plan view illustrating a transport chain according to the present invention.
FIG. 5 is a cross-sectional view illustrating a sprocket according to the present invention.
FIG. 6 is a cross-sectional view illustrating a chain guide member in the present invention.
[Explanation of symbols]
A Transport chain device A1, A2 Chain device B Bottle C1, C2 Belt conveyor D Feed screw X Transport direction 1 Support frame 2 Transport chain 3 Sprocket 5, 6 Guide member 9 Chain link 10 Link body 11 Bottle transport member 22 Support plate 23 Support Side wall slope of plate 28 Retaining ring 38 Protection plate

Claims (4)

A sprocket and a chain guide member provided on a support frame of a machine base are formed by connecting a chain link provided with a bottle carrier member for holding a mouth and neck of a hollow container such as a bottle by a connecting pin. A transport chain device formed by being stretched and supported so as to be pivotable by the transport chain device, the transport chain device being disposed on both sides across a transport path for transporting a hollow container such as a bottle, and the bottle transport A holding ring provided on the mouth and neck of the bottle is clamped and gripped from both sides by a member, and is configured to be transportable, and a protruding portion such as a bottle conveying member and a shoulder of a hollow container is formed on the lower end surface of the chain guide member and it allowed a protective plate projecting between the deformation of the container, that the supporting plate of the conveying member while preventing damage to conveyable configured in a state of suspended hollow container retaining ring Bottle conveyor chain apparatus according to claim.   A transport chain formed by connecting a chain link with a bottle transport member on the link body using a connecting pin is stretched and supported by a sprocket and a chain guide member provided on the support frame of the machine base. The transport chain device formed as described above is disposed on both sides across a transport path for transporting a hollow container such as a bottle, and the holding ring provided on the mouth and neck of the bottle by the bottle transport member is viewed from both sides. A transport chain device configured to be supported and transportable, wherein a protection plate is provided on a lower end surface of the support frame or the chain guide member so as to protrude between a support plate of the bottle transport member and a shoulder portion of the bottle. It is provided in a fixed manner so that it is transported in a state of being hung by a retaining ring portion of the bottle by a support plate of the bottle transporting member while preventing deformation and damage of the container. Le conveyor chain apparatus. A transport chain formed by connecting a chain link provided with a bottle transport member having a bottle support plate on the offset link body by a connecting pin is stretched by a sprocket provided on a support frame of the machine base and a chain guide member, Supporting and forming a transport chain device on both sides across a transport path for transporting a hollow container such as a bottle, and holding rings provided on the mouth and neck of the bottle by the bottle transport member from both sides A transport chain device configured to be tightly attached and supported, wherein a protective plate protruding between the bottle support plate and a shoulder portion of the bottle is fixed to a lower end surface of the support frame or the chain guide member. A bottle transport chain device, wherein the bottle transport member is transported in a state where the bottle is suspended by a retaining ring by the bottle transport member. The bottle transport chain device according to any one of claims 1 to 3, wherein the protective plate is made of a low friction material .

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