JPH0654433U - Can Cima Discharge Device - Google Patents

Abstract

(57) [Summary] [Purpose] Transfer the cans discharged from the can seamer at high speed to the discharge conveyor without tipping over.
The conveyor is operated at low speed to increase the service life. [Structure] A discharge turret 5 that rotates in synchronization with a seaming turret 4 transfers a can of a winding-finished product to a discharge conveyor 6 via a rotary screw in order to discharge it from the seamer. By gradually reducing the lead interval toward the downstream side, the discharge conveyor 6 can be slowed down and its life can be increased.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a can seamer discharging device.

[0002]

[Prior art]

 A conventionally proposed can seamer discharging device will be described with reference to FIGS. 4 to 7. 1 is a filler, 2 is a feed conveyor, 3 is a cap feed turret, 4 is a seaming turret, 5 is a discharge turret, and 6 is a discharge. It is a conveyor. Further, 10 is a can detecting device which is provided at a predetermined position on the outer peripheral side of the seaming turret 4 and detects a predetermined can. In the case of this conventional example, a sensor is provided for detecting a defectively tightened can. There is. Reference numeral 11 denotes a dock chain that constitutes a constant-pitch transport device. The dock chain 11 has a dog 8 having the same pitch as the pocket 8 of the discharge turret 5 and a drive-side sprocket 12 fixed to the rotating shaft of the discharge turret 5. It is suspended on a driven side sprocket 13 provided on the side of the discharge conveyor 6, and is rotationally driven from the discharge turret 5 along the discharge conveyor 6. Reference numeral 14 is a can discharging device, which can be equipped with an appropriate removing means such as an air cylinder or an air jet. Further, 15 is a reject conveyor and 16 is a guide.

In the conventional device configured as described above, when the can detecting device 10 detects a defectively tightened can, an exclusion signal is issued and tracking of the can to the extrusion device starts. For example, a rotary encoder that detects the rotation of the seamer is provided and the number of pulses is counted. In other words, the can reaches the discharging device at the timing, during which the can is transferred from the seaming turret 4 to the discharge turret 5 and fitted into the pocket 8 of the discharge turret 5 to the transfer position to the discharge conveyor 6. It is conveyed, but at the same time, it fits between the dogs of the dock chain 11 that are rotating in synchronization with the discharge turret 5 and engages with the dogs of the dock chain 11 from the transfer point to the discharge conveyor 6 It is conveyed on the conveyor 6 at an equal pitch. When the unwrapped can reaches the discharging position, the discharging device 14 is driven at the above timing to discharge the can to the reject conveyor 15 outside the line. The means for tracing the can from the can detecting device to the discharging position is not limited to the above case, the number of pitches to the discharging device is input in advance, and the number of cans corresponding to this number of pitches is counted. Appropriate means can be adopted.

Further, if the number of dogs of the dock chain 11 which is the constant pitch transport device is an integral multiple of the seamer head, the dog corresponding to the seamer head number can be determined. As a result, even if the time difference from the seamer outlet to the discharge part is not shifted by a rotary encoder or the like as in the conventional example, for example, when removing a can that is wound with the head NO. Only by issuing a signal to always eject from the corresponding dog No. 1, it is possible to reliably extract it, so the shift circuit is not necessary. With this configuration, the cans do not slip on the discharge conveyor 6 when they are transferred from the discharge turret 5 to the discharge conveyor 6, and the cans are accurately conveyed at an equal pitch, so that the cans can be accurately tracked. This ensures that the desired can is discharged.

FIG. 6 shows another conventional example, in which a timing spiral 18 is adopted as a constant-pitch transfer device. The timing spiral 18 has a spiral having the same pitch as the pocket 8 of the discharge turret 5, receives the can C from the discharge turret 5 and conveys it on the discharge conveyor 6 at a constant pitch as shown in the figure. Is provided along the discharge conveyor 6. A can discharge device 19 is provided near the downstream end of the timing spiral 18. In FIG. 6, reference numeral 20 denotes a guide provided on the opposite side of the timing spiral 18, and a portion facing the can discharge device 19 is open so that the can C is opened when the can discharge device 19 is operated. It can be discharged from the discharge conveyor 6 to the outside of the line. In FIG. 7, which is a sectional view taken along line CC of FIG. 6, 42 is a hold-down member that engages with the upper surface of the can C and prevents the can C from jumping up.

[0006]

[Problems to be solved by the device]

 In order to increase the production amount in recent years, the cans that have been closed by winding are discharged from the seamer to the discharge conveyor 6 at high speed as shown in FIGS. As a result, the can sometimes fell during transfer. In order to prevent this, conventionally, a timing spiral (rotary screw) 18 is used as shown in FIG. However, when such a timing spiral 18 is used, the discharge conveyor 6 needs to operate at high speed according to the speed of the discharge can. Therefore, there is a problem in the life of the discharge conveyor 6, and therefore it is desirable to operate at the lowest speed possible. The present invention is intended to provide a can-seamer discharge device for transferring cans discharged at high speed from a seamer to a discharge conveyor without tipping over, and for speeding up the discharge conveyor.

[0007]

[Means for Solving the Problems]

 For this reason, the present invention is directed to a can-seamer discharging device for transferring a winding-completed can to a discharge conveyor through a rotating screw in order to discharge the can after the winding is completed by a discharging turret that rotates in synchronization with the seaming turret. The lead interval of the rotary screw is formed to be gradually smaller toward the downstream side, and this is a means for solving the problem.

[0008]

[Action]

 The cans that have been wound up are discharged from the seamer at regular intervals, and the discharged cans are transferred to the discharge conveyor via a rotary screw whose lead interval is gradually reduced. That is, since the reeds of the rotary screw are formed to be successively smaller, the space between the cans is narrowed and the cans are placed on the discharge conveyor. As a result, it is possible to reduce the speed of the discharge conveyor while keeping the production volume unchanged.

[0009]

【Example】

 1 to 3 show an embodiment of the present invention, FIG. 1 is an overall layout view, FIG. 2 is a detailed view of a main part of FIG. 1, and FIG. It is an A-A sectional view of FIG. In the present invention, parts having the same functions as those of the conventional device will be described using the same reference numerals. In the figure, 1 is a filler for filling a liquid, 2 is a conveyer for conveying a filled can to a seamer, 3 is a cap feed turret, 4 is a seaming turret for seaming a cap, and 5 is synchronous with the seaming turret 4. It is a discharge turret which is rotated and transferred to the discharge conveyor 6 via the guide 37. Reference numeral 38 denotes a rotary screw, which is arranged so as to be able to receive the end-of-tightening cans discharged from the discharge turret 5 in sequence, and the lead of the rotary screw 38 is formed to be successively smaller (P0> P1> P2> P3). …). Note that P0 has the same pitch as the pockets 8 of the discharge turret 5. Further, the rotary screw 38 is provided along the discharge conveyor 6 so that the cans C can be sequentially received from the discharge turret 5 and can be placed on the discharge conveyor 6 with a narrower interval. Further, guides 20 and 21 for preventing the cans from falling are erected on both sides of the discharge conveyor 6.

The can filled with the liquid by the filler 1 is conveyed to the cap feed turret 3 by the feed conveyor 2 at a constant speed (for example, 156 m / min at 1500 CPM). The can on which the cap is placed is subjected to seaming (winding tightening) while being rotated by the seaming turret 4. As shown in FIG. 2, the cans that have been tightened are fitted into the grooves of the rotating screw 38 that is rotating from the pocket 8 (pitch P0) formed in the discharge turret 5, and the cans are sequentially separated by the rotation of the rotating screw 38. Can be narrowed. That is, since the leads formed on the rotary screw 38 are successively formed smaller, they are transferred to the discharge conveyor 6 with the can interval narrowed. As a result, the speed of the discharge conveyor 6 can be selected slower than the peripheral speed of the discharge turret 5 at a ratio of P5 / P0. Needless to say, the selection of the final lead of the rotary screw is determined by the allowable interval of the cans transported by the discharge conveyor, the transfer speed of the discharge conveyor that does not fall, and the like.

[0011]

[Effect of device]

 As described above in detail, in the can seamer discharging device of the present invention, since the transfer from the discharge turret to the discharge conveyor is carried out via the rotary screw whose lead interval is gradually reduced, the production amount is the same as the conventional one. Even if it remains as it is, the speed of the discharge conveyor can be reduced, so that the can can be prevented from falling, and the life of the discharge conveyor can be increased by reducing the speed of the discharge conveyor.

[Brief description of drawings]

FIG. 1 is a plan view of a can seamer discharging device showing an embodiment of the present invention.

FIG. 2 is a plan view showing details of a main part of FIG.

FIG. 3 is a sectional view taken along line AA of FIG.

FIG. 4 is a plan view showing an example of a conventional can seamer can discharging device.

5 is a view on arrow B of FIG. 4. FIG.

FIG. 6 is a plan view of a can discharge device that is transferred onto a conveyor using a conventional rotary screw.

FIG. 7 is a sectional view taken along line CC of FIG.

[Explanation of symbols]

 1 Filler 2 Feed Conveyor 3 Cap Feed Turret 4 Seaming Turret 5 Discharge Turret 6 Discharge Conveyor 20, 21 Guide 37 Guide 38 Rotating Screw

Claims (1)

[Scope of utility model registration request] 1. A can-seamer discharging device for transferring a can finished winding from a seamer to a discharge conveyor via a rotary screw by a discharge turret rotating in synchronization with a seaming turret, wherein A can-seamer discharging device, in which the lead intervals of the screw are gradually reduced toward the downstream side.