KR100643130B1 - The transfer system for preforms - Google Patents

Abstract

A preform transfer apparatus is provided to prevent erroneous operation of the apparatus by forming no curved portion in a path along which air pressure of vacuum condition flows. A preform transfer apparatus(100) is interposed between a preform supply unit and a preform outlet unit so that the preform transfer apparatus permits a preform(1) to pass through the preform supply unit, a preform test unit, and the preform outlet unit. A main body frame(110) has a bottom surface where a support plate(120) is bolt-coupled. The support plate has a guide pipe(123) formed integrally therewith. A support shaft(130) is coupled to an inner surface of the guide pipe, and has a hollow portion for passage of air pressure of vacuum condition. An air pressure generating unit(140) is connected to a lower portion of the support shaft. A rotary shaft(150) is arranged coaxially with the center line of the support shaft, and has an outer surface where a slave gear(153) is coupled. A transfer plate(170) includes a branch pipe(171) for passage of air pressure of vacuum condition; a plurality of grooves(172) formed at an outer surface of the transfer plate; and a plurality of suction paths(173) one ends of which are open and the other ends of which are communicated to the branch pipe. A suction port(180) is communicated to the suction paths so as to suck the preform by using air pressure of vacuum condition. An open/shut control member is arranged in the branch pipe so as to control air pressure of vacuum condition formed in the suction paths by opening/shutting the suction paths.

Description

Preform Feeder {The transfer system for preforms}

1 is a perspective view showing a conventional preform feeder,

Figure 2 is a perspective view showing a preform conveying apparatus according to a preferred embodiment of the present invention,

Figure 3 is an exploded perspective view showing a preform conveying apparatus according to a preferred embodiment of the present invention,

Figure 4 is a perspective view showing a state in which the preform conveying apparatus according to a preferred embodiment of the present invention is applied to the preform inspection equipment,

5 is a cross-sectional view of main parts of FIG. 4;

Figure 6 is a cross-sectional view of the main portion of the conveying plate of the preform conveying apparatus according to a preferred embodiment of the present invention,

7 is a sectional view showing an operating state of the preform conveying apparatus according to the preferred embodiment of the present invention;

Figure 8 is a cross-sectional view of the main portion of the support plate of the preform conveying apparatus of the present invention,

Figure 9 is a perspective view showing the operating state of the preform transfer device applied to the preform inspection equipment.

<Explanation of symbols for the main parts of the drawings>

100: preform feeder 110: main frame

120: support plate 130: support shaft

140: air pressure generating unit 150: rotating shaft

160: protective tube 170: transfer plate

171: Taxonomy 172: Home

173: suction passage 180: suction hole

190: opening and closing control port P: drive motor

B: bearing

The present invention relates to a conveying apparatus, and more particularly, by simplifying the structure of the movement path that can move the air pressure of the preform conveying apparatus for conveying the preform by a predetermined period using the vacuum air pressure, the manufacturing process is easy and accordingly It relates to a preform feeder that can reduce the manufacturing cost.

Generally used beverage containers (bottle) is mainly made of PET, these beverage containers are largely divided into four according to the characteristics of the beverage accommodated therein. First, normal pressure bottle containing bottled water and soju, pressure-resistant bottle containing carbonated drinks such as cola and cider, heat bottle containing 100% fruit juice such as fruit juice, fruit juice and ion drink less than 10% It is divided into heat-resistant illnesses and the like.

Such a beverage container is first molded into a shape of a preform by injection molding a material, and then molded into a shape capable of accommodating a beverage through a blamming process on the molded preform. In this way, the preform produced before the molding into the beverage container is molded into the beverage container through an inspection process for checking whether the foreign matter is introduced and whether the screw is formed correctly before molding into the beverage container.

Accordingly, in order to inspect the preform as described above, a separate preform transfer device for sequentially transferring the preform is required.

1 is a perspective view showing a conventional preform feeder.

Referring to FIG. 1, the conventional preform conveying apparatus 10 includes a conveying plate 20, an actuating tool 30, and a cylindrical cap 40.

The transfer plate 20 has a plurality of grooves 22 formed on the outer circumferential surface thereof, and the suction hole 24 is provided on the inner circumferential surface of the groove 22.

In addition, the actuating port 30 connected to the suction port 24 through the connection valve 33 and the air hose 31 is provided with a roller 37 for lifting and lowering operation by the elastic force of the elastic spring 35 in the lower portion thereof. do. At this time, the air pressure in the vacuum state transmitted through the operation port 30 is transmitted to the suction port 24 through the connecting valve 33 and the air hose 31 to preform (not shown) to the groove portion 22 Fixed optionally.

And the lower portion of the transfer plate 20 is equipped with a cylindrical cap 40 is formed with a stepped portion 42 at the top so that the roller 37 can move up and down.

Accordingly, when the transfer plate 20 rotates, the roller 37 rotates along the upper end of the cylindrical cap 40. At this time, when the roller 37 is located at the stepped portion 42, the roller 37 Ascending and blocking the operation port 30 to lose the air pressure of the suction port 24, when lowered, the operating port 30 is opened to transfer the vacuum air pressure to the suction port 24.

As described above, the preform conveying apparatus 10 fixes the preform to the conveying plate 20 through a pneumatic pressure in a predetermined section and sequentially conveys the conveying form along the conveying plate 20. In this process, the preform conveyed sequentially. Inspect through the inspection device (not shown). Subsequently, in the section where the inspection is completed, the air pressure in the vacuum state is lost in the suction port 24 so that the preform is separated from the transfer plate 20 to be discharged to the outside.

However, the conventional preform feeder has the following problems.

Conventional preform transfer device has a lot of difficulties in the manufacturing process due to the complicated structure, there is a problem that takes a high manufacturing cost.

That is, in order to form a vacuum air pressure in the plurality of suction ports, a plurality of valves, which are intermediate mediators, and a plurality of air hoses for connecting the valves were required for each suction port. Further, in order to control the air pressure in the vacuum state formed in the suction port, additional elements such as a roller rotating along the cylindrical cap and an elastic spring for lifting the roller must be installed in each suction port.

In addition, there is a problem that the malfunction of the device occurs because the vacuum air pressure of the suction port is lowered during the preform transfer process. That is, a plurality of intermediate media such as a connection valve and an air hose are installed between the suction port and the vacuum pump, and the connection valve and the air hose installed in this way take the form of the bent portion, which is external to the bent portion. This is because foreign matter accumulates and the air pressure blocks the movement path.

In addition, the conventional preform feeder has a lot of difficulties in maintaining and repairing the device when used for a long time. In other words, if air pressure loss occurs in each of the adsorption ports, it is necessary to check all the connection valves, air hoses and their connection parts connected to these adsorption ports.

The present invention has been made in order to solve the problems in use of the conventional preform transfer device as described above, the object of the movement path that can move the air pressure of the preform transfer device to transfer the preform a certain period using the air pressure in the vacuum state By simplifying the structure, it provides a preform transfer device that is easy to manufacture and thereby reduce the manufacturing cost.

In addition, another object of the present invention is to prevent the formation of the bent portion in the path of the air pressure in the vacuum state to prevent the foreign matter deposited on the movement path, it is possible to prevent the malfunction of the device caused by the deposition of foreign matter in advance. Provides a preform feeder.

Still another object of the present invention is to pre-install the device for a long time, so that the air pressure loss can be easily recovered by inspecting only a few specific parts, and thus preform can be easily performed according to the use of the device. Provide a transfer device.

Yet another object of the present invention is to adjust the section in which the preform is transferred and the section in which the preform is separated by a simple angle change of the support plate connected to the support shaft, when the preform feeder is installed in the inspection equipment, the preform supply unit and the preform discharge Provided is a preform feeder that can easily set its positional relationship between parts.

According to the invention,

Preform feeder for feeding the preforms sequentially at regular intervals, and between the preform discharger and the preform discharger for discharging the preforms to the preform discharger from the preform supplyer via the preform inspector. To

The support plate bolted to the bottom surface of the main body frame is opened up and down in the upper portion is formed integrally with a guide tube having a hollow inside,

The support shaft coupled to the inner circumferential surface of the guide tube has a hollow portion is formed so that the air pressure in the vacuum state can pass through, the air pressure generating portion is connected to the lower portion,

The outer circumferential surface of the rotating shaft installed on the same axis as the center line of the support shaft is coupled to the driven gear to rotate by receiving the rotational force of the drive motor (P),

The transfer plate installed on the upper part of the rotating shaft to receive the rotating force of the rotating shaft is formed on the inner side and flows through the vacuum pressure in the vacuum state, and is formed on the outer circumferential surface and has a plurality of grooves facing each other up and down. One end is opened between the pair of grooves, and the other end is integrally formed such that a plurality of suction passages communicating with the flow dividing tube have a radial shape around the flow dividing tube,

At one end of the suction passage is provided with an adsorption port communicating with the suction passage for adsorbing the preform using air pressure in a vacuum state,

An opening / closing control tool for controlling the air pressure in the vacuum state formed in the suction path by selectively opening and closing a plurality of suction paths at the suction pipe side is inserted / installed inside the classification pipe.

Hereinafter, a preform conveying apparatus according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in detail.

Figure 2 is a perspective view showing a preform conveying apparatus according to a preferred embodiment of the present invention, Figure 3 is an exploded perspective view showing a preform conveying apparatus according to a preferred embodiment of the present invention, Figure 4 according to a preferred embodiment of the present invention The preform conveying device is a perspective view showing a state applied to the preform inspection equipment, Figure 5 is a cross-sectional view of the main part of Figure 4, Figure 6 is a cross-sectional view of the main portion of the conveying plate of the preform conveying apparatus according to a preferred embodiment of the present invention.

2 to 6, the preform conveying apparatus 100 of the present invention is a main body frame 110, a support plate 120, a support shaft 130, a pneumatic pressure generating unit 140, a rotating shaft of the rectangular box form 150, the protective device 160, the transfer plate 170, the suction port 180, and the opening and closing control port 190 are configured to be included.

In this case, the support plate 120 is opened up / down in the upper portion is formed with a guide tube 123 having a hollow inside, the first key groove 125 is formed on the inner circumference of the guide tube 123. In addition, a plurality of long holes 127 are integrally formed outside the support plate 120.

The support shaft 130 has a hollow portion formed therein so as to allow the air pressure in a vacuum state to pass therein, and a second key groove 135 communicating with the first key groove 125 is formed on an outer circumferential surface thereof. At this time, the key 136 is inserted into the first key groove 125 and the second key groove 135.

The air pressure generating unit 140 discharges air existing in the support shaft 130 to the outside so that the hollow portion of the support shaft 130 has a vacuum pressure in a vacuum state.

At this time, the air pressure generating unit 140 is preferably made of an air pump.

On the other hand, the rotating shaft 150 is installed on the same axis as the center line of the support shaft 130, the driven gear 153 is coupled to the outer peripheral surface is connected to the drive gear 151 of the drive motor (P).

One end of the protective tool 160 is inserted / installed in the upper portion of the main body frame 110, and a hollow part is formed to penetrate the support shaft 130 and the rotation shaft 150 therein. In this case, a plurality of bearings B are installed between the support shaft 130 and the rotation shaft 150 and between the rotation shaft 150 and the protective device 160 for smooth rotation of the rotation shaft 150.

On the other hand, the transfer plate 170 is formed in the inside of the sorting pipe 171 through which the air pressure in a vacuum state passes, and the cover 176 formed with a fastening hole 177 is mounted on the upper portion of the sorting pipe 171. It is coupled to the opening and closing control mechanism 190 to be described later by the fastening bolt 178. In addition, a plurality of grooves 172 are formed on the outer circumferential surface of the transfer plate 170 to face each other up and down, and a plurality of suction passages 173 are integrally formed therein. At this time, one end of the suction passage 173 is opened between the pair of grooves 172, and the other end thereof communicates with the flow pipe 171 to face the groove 172 formed around the flow pipe 171. It has a radial shape.

The suction port 180 is coupled to one end of the suction path 173, and a hollow part is formed inside the suction path 173 to communicate with the suction path 173. At this time, one end of the suction port 180, that is, the side protruding to the outside of the transfer plate 170 preferably has a hemispherical shape, such as a cubang in order to increase the adhesion to the preform (1).

On the other hand, the opening and closing control mechanism 190 is a bearing (B) is inserted / installed at the upper / lower end, the air movement path 192 is formed to move the air pressure in the vacuum state therein, the air movement path A plurality of connection holes 194 opened up and down in the opening and closing control port 190 are formed at an outer side adjacent to the 192. In addition, the outer circumferential surface middle portion of the opening and closing control mechanism 190 is in communication with the air movement path 192, the opening hole 196 is formed along the outer circumferential surface is formed, the ring 198 on the upper and lower outer circumferential surface Ring groove 199 is formed integrally so that the () can be inserted. Accordingly, the opening and closing control mechanism 190 by the ring 198 inserted into the outer circumferential surface of the sorting pipe 171 to increase the adhesion to the inner surface, the inside of the sorting pipe 171 can be present in a tight closed space. Will be.

Here, the opening hole 196 having a predetermined angle is opened selectively to the suction passage 173 on the side of the flow pipe 171 as shown in FIG.

"0" and "C" shown in the figure indicate each section, where "O" section represents a preform conveying section and "C" section represents a preform leaving section.

Accordingly, when the suction path 173 of the rotating transfer plate 170 is located in the "O" section on the side of the flow pipe 171, the suction path 173 is opened to transfer the air pressure in a vacuum state. Adsorption port 180 to adsorb the preform (1) to be transported for a certain period to perform the inspection work.

 In addition, when the suction passage 173 is located in the "C" section on the side of the flow pipe 171, the outer surface of the opening and closing control port 190 blocks the suction passage 173 to block the transmission of the air pressure in a vacuum state. . Accordingly, in this section, the preform 1 to be transported is separated from the suction port 180 and discharged to the outside.

Thus, looking at the coupling relationship of the preform conveying apparatus of the present invention having the configuration as described above are as follows.

The support plate 120 is bolted to the lower portion of the lower portion of the main body frame 110, the guide pipe 123 and the support shaft 130 of the support plate 120 is the key 136 is the first It is inserted into the key groove 125 and the second key groove 135 connects the guide tube 123 and the support shaft 130. Here, the support shaft 130 is connected to the air pressure generating unit 140 by the lower portion of the flexible tube, the opening and closing control port 190 is fixed to the upper portion. Accordingly, the support plate 120, the support shaft 130 and the opening and closing control mechanism 190 has an integral configuration.

On the other hand, the transfer plate 170 is fixed to the upper portion of the lower end of the rotating shaft 150. At this time, by the bearing (B) between the rotary shaft 150 and the protective equipment 160 and between the rotary shaft 150 and the support shaft 130 they maintain a constant distance from each other. Accordingly, the rotary shaft 150 is rotated by receiving the rotational force of the driven gear 153 installed on the outer circumferential surface, the transfer plate 170 fixed to the upper portion of the rotary shaft 150 transmits the rotational force of the rotary shaft 150 Take it and rotate with it.

Thus, the preform conveying apparatus of the present invention having the above-described combination configuration is simple to manufacture by simplifying its internal components to allow the air pressure in the vacuum state to move to transfer the preform to the inspection position, easy to maintain in use relationship To facilitate maintenance, this series of usage relationships and their interactions are as follows.

7 is a cross-sectional view of the operation state of the preform conveying apparatus according to a preferred embodiment of the present invention, Figure 8 is a cross-sectional view of the main portion of the support plate of the preform conveying apparatus of the present invention, Figure 9 is a preform conveying apparatus applied to the preform inspection equipment A perspective view showing an operating state.

7 to 9, the preforms 1 sequentially input by the screw feeders 11 of the preform supply unit 2 at predetermined intervals flow into the grooves 172 of the transfer plate 170 and are adsorbed. It comes in contact with the sphere 180. In this case, the suction passage 173 to which the suction port 180 is coupled is located at the “O” section shown in FIG. 6 while the other side thereof communicates with the opening hole 196 of the opening / closing control port 190. Accordingly, the air pressure in the vacuum state formed by the air pressure generating unit 140 is transmitted to the adsorption port 180 through the support shaft 130, the opening / closing control port 190, and the suction passage 173, so that the adsorption port 180 is provided. Adsorbs the preform 1.

Thereafter, the preform 1 adsorbed by the adsorption port 180 is transferred to the predetermined section by the rotation of the rotating shaft 150 and the transfer plate 170 which are rotated by receiving the rotational force of the driving motor P. Inspection of the preform 1 is performed while passing through the preform inspection unit 20.

Thereafter, the preform (1) having confirmed the presence / absence of the defect through the inspection work is transferred to a certain period again, in this case, the other end of the suction passage (173) in which the air pressure in the vacuum state is communicated with the opening hole (196) When passing through the section “C” of FIG. 6, the outer circumferential surface of the opening and closing control port 190 blocks the suction passage 173. As such, when the suction path 173 is blocked and the air pressure in the vacuum state disappears in the suction path 173, the preform 1 is released from the suction port 180 and enters the preform discharge part 4 to the outside. Discharged.

At this time, the support plate 120 is bolted to the body frame 110, as shown in Figure 8 when the bolt to secure the support plate 120 is relaxed, the support plate 120 along the long hole 127 It is possible to change the angle by rotating to a predetermined angle. Accordingly, when the support plate 120 is rotated at a predetermined angle, the support shaft 130 and the opening / closing control mechanism 190 coupled to the support plate 120 are rotated at the same time, and the “O” preform shown in FIG. 6 is rotated. The position of the transfer section and the "C" preform breakout section can be adjusted.

In addition, when a vacuum air pressure loss occurs in the suction passage 173, by opening the lid 176 and replacing only the ring 198 that is in close contact with the inner circumferential surface of the flow pipe 171, the loss portion is checked. Therefore, maintenance and repair can be easily performed.

Accordingly, the preform conveying apparatus of the present invention is easy to manufacture by simplifying the movement path through which the air pressure in the vacuum state formed through the air pressure generating unit is transferred to the adsorption port, and is generated by the air pressure change in the vacuum state without the bent portion in the movement path. To prevent malfunction of the equipment beforehand.

According to the present invention, by simplifying the structure of the movement path that can move the air pressure of the preform conveying device for transferring the preform a certain period by using the air pressure in the vacuum state, the manufacturing process is easy and the effect that can reduce the manufacturing cost There is.

In addition, by preventing the formation of the bent portion in the path of the air pressure in the vacuum state to prevent the foreign matter deposited on the movement path, there is an effect that can prevent the malfunction of the device caused by the deposition of foreign matter in advance.

In addition, when the air pressure loss occurs by using the device for a long period of time, it is possible to easily recover by inspecting only a certain part, and thus there is an effect of easily performing maintenance / repair according to the use of the device.

In addition, by adjusting the angle of the support plate and the support plate connected to the support shaft to adjust the section in which the preform is transferred and the preform is separated, the installation between the preform supply unit and the preform discharge unit when the preform feeder is installed in the inspection equipment There is an effect that can easily set the positional relationship.

Claims (4)

The preform supply unit 10 is installed between the preform supply unit 10 for sequentially inputting the preform 1 at a predetermined interval and the preform discharge unit 30 for discharging the preform 1 to the outside. In the preform transfer device 100 for transferring to the preform discharge unit 30 via the preform inspection unit 20 in (10), The support plate 120 bolted to the bottom surface of the main body frame 110 is opened up and down in the upper portion is formed integrally with a guide tube 123 having a hollow inside, The support shaft 130 coupled to the inner circumferential surface of the guide tube 123 has a hollow portion formed therein so as to allow the air pressure in a vacuum state to pass therethrough, and an air pressure generating unit 140 is connected to the lower portion thereof. The outer circumferential surface of the rotating shaft 150 installed on the same axis as the center line of the support shaft 130 is coupled to the driven gear 153 that is rotated by receiving the rotational force of the drive motor (P), The transfer plate 170 is installed on the upper portion of the rotary shaft 150 to receive the rotational force of the rotary shaft 150 is formed on the inner side of the flow pipe 171 through which the air pressure in a vacuum state passes, and formed on the outer peripheral surface One end is opened between the plurality of grooves 172 and the pair of grooves 172 having opposite relations with each other, and the plurality of suction passages 173 in communication with the flow pipe 171 at the other end are flow pipes 171. It is formed integrally to have a radial shape with respect to An adsorption port 180 is installed at one end of the suction path 173 to communicate with the suction path 173 and adsorb the preform 1 using the vacuum air pressure. Opening and closing control unit for controlling the air pressure in the vacuum state formed in the suction passage (173) by selectively opening and closing the plurality of suction passages (173) in a predetermined section on the inside of the dividing pipe (171) Preform conveying apparatus, characterized in that the 190 is inserted / installed. The method of claim 1, The opening and closing control port 190 has an air moving path 192 is formed to move the air pressure in a vacuum state therein, and the opening hole 196 in communication with the air moving path 192 is formed in a fan shape on the outer circumferential surface thereof. And a ring groove (199) integrally formed on the outer circumferential surface to allow the ring (198) to be inserted in close contact with the inner circumferential surface of the sorting tube (171). The method of claim 1, The support plate 120 is a preform conveying device, characterized in that the long hole 127 is formed in the bolted portion to convert the support plate 120 installed in the main body frame 110 to a predetermined angle. The method according to claim 1 or 2, The air pressure generating unit 140 discharges the air existing in the support shaft 130, the air moving path 192, and the suction path 173 to the outside to have an air pressure in a vacuum state therein. Preform feeder, characterized in that made.

Images