JP2003104321A - Method and device for deadening sound of filling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To deaden impact sound generated when each cup is reversely turned and to prevent the contents of the cup from being scattered when the cup is reversely turned, in a filling machine that supports on an endless chain via pins a large number of bowl-shaped cups, which are intermittently moved together with the chain, turns the cups reversely by the stop inertia of the chain at the chain end, and fills the contents of each cup into a baglike container by the reverse turn inertia of the cup. SOLUTION: A support plate 13 receiving a carried cup from the chain 10 turns reversely around a pin 11 by stop impact of an end wheel 25 and releases the contents of the cup 12. However, in the beginning of the reverse turn of the support plate 13, the support 13 receives the resistance of the elastic cushioning material 40 of the leading end of a movable stopper 30. In this case, the movable stopper 30 connects to the bottom dead center of a crank arm activating the stopper 30 and is put in a temporarily stopping position or in a gentle moving position, and moves to the lower limit position 30A with gradual acceleration while applying brake to the support plate 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention: From a large number of object-to-be-packaged cups conveyed at regular intervals by a chain conveyor into a plurality of containers which are opened at an upper surface and transferred at equal intervals. Regarding the machine.

[0002]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
Japanese Patent Laid-Open No. 8008 sequentially reverses and drops a large number of cups, which are conveyed by a belt conveyor, at regular intervals from the end portion of the conveyor, and the objects to be packaged in the respective cups are packed by the drop impact. A technique for filling the inside of the container at a predetermined time interval is disclosed, while in the case of the actual Kaihei 1-142198.
The publication discloses a large number of cups 1 supported on an endless chain 10 via pins 11 and intermittently conveyed as shown in FIG.
2 is reversed by the stop inertia of the chain at the end portion of the chain 10, and the objects to be packaged in each cup are stored in the bag-shaped container 16 via the hopper 15 by the impact of the cup supporting plate on the rail / stopper 14. A technique for filling the inside of the container is disclosed.

The former uses a cylindrical cup having a small opening area to drop the cup linearly and discharges the object to be packaged, while the latter directly connects the bowl-shaped relatively shallow cup 12 to the chain conveyor 10. It is a type that conveys and transports the cup-shaped cup 12 by rotating the bowl-shaped cup 12 and releases the object to be packaged. Become. In the former case, the impact noise is less likely to be emitted in the case of a cylindrical cup having a small opening area, but in the latter bowl-shaped cup 12, the impact noise is emitted, which is very noisy and easily causes health problems for workers. Since the cup 12 is turned over at the end portion thereof, a centrifugal force acts on the article to be packaged, so that the article to be packaged tends to diffuse out of the hopper 15 at the moment of collision with the stopper 14.

[0004]

[Solution] While the present invention is accompanied by muffling of a cup,
In order to ensure that the article to be packaged is guided to the container, a large number of support plates attached to the endless chain at regular intervals via pins are intermittently transferred integrally with the chain while maintaining a horizontal state. At the end of the transfer path of the chain, the support plate is integrated with a bowl-shaped cup fixed to the upper surface of the plate, the pin is inverted about the axis, and the object to be packaged in the cup is container by the inertia generated by the inversion. And a crank arm fixed to a driven shaft for receiving intermittent rotation power of the chain, and a crank arm swingably supported by a main pin parallel to an end wheel shaft of the chain. And a swinging body connected to the swinging body via a connecting rod, and a movable strut having a forward and reverse rotation region extending from an open end of the swinging body and substantially parallel to an end track of the chain. Consists of a par, the movable stopper, after said interfering with the rotational movement of the reversing early in the support plate of the support plate of each cup is configured as to rotate by a specified angle while receiving the load of the support plate.

Since the crank arm, which is the motion power mechanism of the movable stopper, receives the intermittent rotation power of the endless chain for carrying the cup, the movable stopper installed on the rocking body is rotated once during one pitch movement of the chain. It is oscillated for one cycle and interferes with the support plate of each cup that is transported at equal intervals. That is, the movable stopper waits in the reversal region of the support plate, receives the rotational movement of the support plate in the initial stage of reversing the support plate, and then applies a brake to the reversal speed of the support plate in a predetermined region toward the fixed stopper. Rotate. Since the centrifugal force of the object to be packaged is suppressed by the brake, the object to be packaged is filled into the container without being dispersed, the collision noise with the fixed stopper is reduced, and the rotation cycle of the chain can be maintained as it is. Efficiency does not fall.

The movable stopper has a structure in which a brake of the support plate is released in a predetermined area to make the support plate free from reversal, and the support plate collides with the fixed stopper to discharge the article to be packaged. As a separate structure, the movable stopper receives the rotational movement of the support plate at the initial stage of reversal, rotates to a specified position with the brake applied, and stops, and the packaged product is discharged from the cup by such a stop impact.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Although the entire structure of the loading machine has already been described with reference to FIG. 5, the piece 1 protruding from the endless chain 10
7, the cup support plate 13 is rotatably supported via the pin 11, and the cups 12 are conveyed while the support plate 13 is kept horizontal by the first and second guides 18 and 19, and the inertia of the cup 12 due to the inertia at the time of intermittent stop Invert cup 12 and then cup 12 to the third
As shown in the front view of FIG. 2, the pair of chains 10 on both sides are circulated along the guides 14, and move along the rails 21 arranged in four rows above and below, which are fixed to the stays 22 installed between the side frames 20. The pin 17 protruding from the chain link through the pin 11 and the cup 12 on the upper surface.
The support plate 13 for fixing the is horizontally moved by sliding the guide 18.

The front surface of the end wheel 25 supporting the chain 10 shown in FIG. 5 is as shown in FIG. 3, and the end wheel shaft for fixing the pair of wheels 25, that is, the main shaft 26, is provided with the input wheel 27 at one end. The bowl-shaped cup 12 supported intermittently by the pair of chains 10 on both sides is intermittently transferred, and the positional relationship of the movable stoppers 30, which will be described in detail after the tip is formed in a U-shape, is illustrated.

In FIG. 4, a chain wheel 32 indicated by an imaginary line is fixed to a main shaft 26 supported by a side frame 20 via a bearing 31, and a chain wheel of the wheel 32 and a driven shaft 33 arranged at a predetermined interval. 34 is connected via a transmission chain 35, and the driven shaft 33 is rotated by one pitch rotation of the end wheel shaft, that is, the main shaft 26.
While adjusting the crank arm 36 fixed to one turn so as to make one rotation, a dogleg shaped swinging body 39 is swingably supported by a main pin 38 installed in parallel with a bearing 37 in the vicinity of the main shaft 26. The adjusting plate 41 fixed to one end of the oscillating body by a screw 40 and the crank arm 36 described above are connected via the connecting rod 42, and the oscillating body 3 is further connected.
The U-shaped rod-shaped movable stopper 30, which has been described above, is fixed to the open end of the extension member 9 in an extended shape.

In FIG. 1, the support plate 13 which is conveyed by the chain 10 is reversed about the pin 11 due to the stop impact of the end wheel 25, but at the initial stage of the support plate 13 inversion, the support plate 13 is the tip of the movable stopper 30. The resistance of the elastic cushioning material 40 is received. In this case, the movable stopper 30
It is connected to the bottom dead center of the crank arm 36 in FIG. 4 and exists at a momentary stop position or a gradual movement position, and then moves to the lower limit position 30A while applying a brake to the support plate 13 with gradual acceleration. The object to be packaged is inertially released from the cup 12 by a stop impact. At this time, the maximum speed of the support plate 13 is about 75% with the natural reversal speed of the support plate 13 being 100 as an example.

The movable stopper 30 is the support plate 1
After interfering at the initial stage of reversing of No. 3, the supporting plate 13 is rotated at a speed higher than the natural reversing speed of the supporting plate to stop the supporting plate 13 from colliding with the fixed stopper. In this case, the main pin 38 in FIG. 4 is arranged on the same core as the end shaft 26 to speed up the movable stopper 30, or the screw 40 is loosened to change the protruding amount of the adjusting plate 41 to change the movable stopper. The rotation speed of 30 is increased. By such adjustment, the movable stopper 30 momentarily applies a restraining force to the rotational movement of the support plate 13, and then separates at a high speed in the rotation direction of the support plate 13 to assist the natural reversal of the support plate 13. In this case, the natural reversal speed of the support plate 13 does not synergize with the stopping impact of the chain 10, and therefore is gentle accordingly.

The length adjusting tanbule 45 of the connecting rod 42 of the crank arm can change the movement region of the movable stopper 30 to adjust the brake starting position with respect to the support plate 13.

[Brief description of drawings]

[Figure 1] Side view of main parts

[Fig. 2] Front view of the cup transport track

FIG. 3 is a front view of a cup transport track of a chain end shaft portion.

FIG. 4 is a side view of the chain end shaft portion.

[Figure 5] Side view of the entire cup loader

[Explanation of symbols]

10 ... Endless chain 11 ... pin 12 ... Bowl-shaped cup 13 ... Support plate 14 ... Fixed stopper 16 ... Container 25 ... End wheel 26 ... End shaft 30 ... Movable stopper 33 ... Driven shaft 35 ... Chen 36 ... Crank arm 38 ... Main pin 39 ... Oscillator 40 ... Screw 41 ... Adjusting plate 42 ... Connecting rod 45 ... Tamboucks

Claims (5)

[Claims] 1. A plurality of support plates attached to an endless chain at regular intervals via pins are intermittently transferred integrally with the chain while maintaining a horizontal state, respectively, and the support plate is provided at an end of a transfer path of the chain. Is a throwing machine that inverts the pin integrally with a bowl-shaped cup fixed to the plate upper surface about the axis, and sequentially discharges the objects to be packaged in the cup into the container by the inertia generated by the inversion, At the end of the transfer path of the chain, a movable stopper, which rotates in the normal direction in relation to the transfer interval of each cup, is present on the rotation path of the support plate of the cup at the initial stage of the inversion of the support plate, and the rotation movement of the support plate. A method in which the support force is momentarily applied to the support plate and then the support plate is displaced in the rotational direction. 2. The displacement movement of the movable stopper in the rotation direction of the support plate after momentarily applying a restraining force to the rotation movement of the support plate is performed in synchronization with the rotation speed of the support plate. The method according to 1. 3. The displacement movement of the movable stopper in the rotation direction of the support plate after momentarily applying a restraining force to the rotation movement of the support plate is performed at a speed higher than the rotation speed of the support plate. The method according to 1. 4. A plurality of support plates attached to an endless chain at regular intervals via pins are intermittently transferred integrally with the chain while maintaining a horizontal state, respectively, and the support plate is provided at the end of a transfer path of the chain. Is a bowl-shaped cup fixed to the upper surface of the plate, the pin is inverted about the axis, and the inertial generated by the inversion causes the object to be packed in the cup to be sequentially discharged into the container. A crank arm that is fixed to a driven shaft that receives intermittent rotational power of the chain, and a swing body that is swingably supported by a main pin that is parallel to the end wheel shaft of the chain and that is connected to the crank arm via a connecting rod. And a movable stopper extending from the open end of the oscillating body and having a forward and reverse rotation region substantially parallel to the end track of the chain. The upper device is provided with a means for rotating the support plate of each cup by a predetermined angle while interfering with the rotational movement of the support plate at the initial stage of inversion, while receiving the load of the support plate. 5. The device according to claim 4, wherein the connecting rod that connects the crank arm and the rocking body is provided with a tan buckle mechanism that adjusts the length of the connecting rod itself.