JPH04242516A - Rotary vacuum packer - Google Patents

Abstract

PURPOSE:To eliminate erroneous delivery of bags from a rotary bagging machine to a likewise rotary vacuum packer. CONSTITUTION:A clamp 20 is transferred by the rotary power of a rotor 21. This is provided with a bagging machine 22 by which the contents are charged in a bag 24 supported by the clamp 20 while the clamp 20 rotates one round on the circular path and a vacuum packer 29 by which a number of separable pressure-proof chambers 27 are rotated by a rotor 28. The separated pressure- proof chamber 27 holds bags 24 directly to receive them suspended by the clamp 20 and the contents in the bag are vacuum-packed during transfer thereof.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention involves transporting a bag with an open top along a circular orbit, filling the bag with an article to be packaged while the bag moves on the circular orbit, and then transporting the bag. The present invention relates to a device that moves the object into a pressure-resistant chamber and vacuum-packages the object to be packaged within the chamber.

0002

[Prior Art] As a conventional device of this kind, there is a
102302, a rotor (2) equipped with four sets of clamps (1) and a rotor (4) equipped with four chambers (3), as shown in FIG.
Rotate intermittently by 0 degree angle, and place bag (5) at position (6).
) is supported by clamp (1), the bag becomes (7) (8
), the bag is stopped at the position shown in FIG.
) into a chamber (3), and vacuum packaging an article within the chamber while the chamber (3) rotates once.

0003

[Problem to be solved by the invention] However, in the case of FIG.
The bag held by the clamp (1) is transferred to the delivery mechanism (10
), and the bag is further placed in the chamber (3).
Since the bags are transferred between multiple clamps, there is a drawback that mistakes may occur when the bags are handed over.

0004

[Means for Solving the Problems] In order to eliminate bag delivery errors and perform vacuum packaging without failure, the present invention provides a plurality of sets of two clamps at the same pitch as the installation interval of each clamp. At the stop position of the clamp, the bag is first supported by the clamp, the bag is filled with the object to be packaged, and finally the bag is released from the clamp. A bag filling machine made of plastic and multiple sets of airtight pressure chambers made of two separable members are rotated intermittently along a circular orbit to create a vacuum inside the rotating airtight chambers. The bagging machine and the vacuum packaging machine are installed with a difference in height so that the upper surface of the pressure chamber is located below the clamp, and the bagging machine and the vacuum packaging machine are installed at a height difference. After the bag supported by the clamp is received in two divided and rotating members, these two members are closed to sandwich the bag, and a perforating knife and a sealing mechanism are respectively provided in the pressure chamber. It is something.

[0005]

[Operation] A bag filling machine rotates a bag suspended by a clamp along a circular orbit, and after filling the bag with an item to be packaged, transports the bag toward a release position.

On the other hand, in a vacuum packaging machine that rotates a pressure chamber at a position slightly lower than the clamp, the chamber is divided into two before it comes into contact with the bagging machine, and then the two members of the pressure chamber are brought into close contact with each other. For this reason, most of the bag is secured within the airtight interior of the chamber with the opening of the bag being clamped on the top surface of the pressure chamber. Then, when the pressure chamber starts to rotate, a hole is punched in the surface of the bag using a perforation knife, and after the air inside the bag is sucked through the perforation, the upper part of the perforation is sealed by a sealing mechanism. be.

[0007]

[Example] Figure 1 shows four sets of two clamps (two clamps per set).
0) attached to the rotor (21). The rotor (21) is integrally connected to each clamp (20) by the arrow (2).
3) The bag (24) is supplied to the clamp (20) which rotates intermittently by 90 degrees in the direction of 3) and stops at position A.
At the position C, the bag (24) is filled with the object to be packaged, and at the C position, the bag is filled with the seasoning liquid, and the clamp moves toward the bag release position D.

On the other hand, next to the bagging machine (22), there is a vacuum chamber in which four sets of pressure chambers (27) consisting of two divisible members (25) and (26) are provided around a rotor (28). A packaging machine (29) is installed. The vacuum packaging machine is shown in Figure 2.
As will be described in detail in , the main shaft (32) is supported by a bearing (31) provided on the upper surface of the machine base (30) so that its axis is perpendicular, and a circular table-shaped rotor is mounted on the upper end of the main shaft. (33) is fixed, and a movable disk (
34) are fixed with screws (35). The driven shaft (38) connected to the driving shaft (36) in the machine via a chain (37) and the main shaft (32) are connected by a vinegar mechanism (39).
Therefore, the power of the driving shaft (36) drives the main shaft (
32) rotates intermittently in 90 degree increments together with the movable disc (34). Further, the pressure chambers (27) are provided at the tips of four cylindrical arms (40) radially provided on the circumferential surface of the movable disc (34). Therefore, the movable disk (34
), each pressure chamber (27) also rotates by 90 degrees.

[0009] The chamber (27) has a main body (25).
and a lid member (26) pivotally supported thereon by a pin (43), a bell crank (46) supported by a bracket (45) on the back of the main body, and a lever (47) fixed to the lid member. Connected via a link (48) and
The roller (49) provided at the end of the bell crank is connected to the bearing (
31) is pressed against a cam (50) rotatably provided on the circumferential surface thereof by the tension of a spring (51). Also machine stand (30)
A control plate (52) is arranged around the main shaft (32) on the lower side of the machine, and a bar (54) is inserted through a long hole (53) on the top surface of the machine.
) and a bell crank (56) that connects the cam (50) and the control plate (52) via a bell crank (56) supported on the underside of the machine.
and the control plate (52) are connected via a link (57), and a roller (58) provided at one end of the bell crank.
is brought into contact with the cam (59) of the driving shaft (36).

FIG. 4 shows the four sets of chambers (27) described above.
A plan view shows the relationship between this and a cam (50) that opens and closes each chamber. As already mentioned, the driving shaft (36
), the four chambers (27) move in the direction of the arrow (6
When the small cam (59) rotates by 90 degrees in the direction 1), the small cam (59) rotates once. When the cam (59) rotates once, the first bell crank (56) swings once around the pin (62), and this swinging motion is transferred to the link (57).
to the larger cam (50). As a result, as the chamber (27) moves 90 degrees in the direction of the arrow (61), the large cam (50) also moves forward in the same direction (63) by 90 degrees, and the chamber (27) stops. During this time, the large cam (50) moves back (64) by 90 degrees in the opposite direction. Therefore, as shown in Fig. 1, the two divided members (25) and (26) of the chamber stop in such a way as to embrace the stopped bag (24), and then the large cam (50)
Due to the movement of the cam bulging portion (65) due to the reversal of A.
In position, the bell crank (46) rotates and the chamber (
27), and at the B position, the divided chambers (25) and (26) are closed again by the rotation of the bell crank (46) and clamp the bag (24). 2 and 3 illustrate such a state, after which the clamp (20) is moved to the bag (24).
) to release.

As shown in FIGS. 2 and 3, the chamber (
By rotating the lever (67) with the air cylinder (66) provided outside the bag (27) and swinging the perforating knife (68) in the chamber, the bag (27) is opened as shown in Figure 5.
) A large number of holes (69) are formed in the surface. On the other hand, the machine base (71) is placed on the movable disk (34) via the connecting member (70).
), and a port (73) formed in the fixed disk is connected to a vacuum pump via a hose (74). For this purpose, a vacuum is created in the chamber (27) only while the passage (75) of the rotating movable disk communicates with said port (73). For this reason, Figure 5
The air inside the bag is sucked through the tear hole (69) in the bag. (
This configuration and the following configurations are disclosed in Japanese Unexamined Patent Application Publication No. 62-1.
82014. ) then the second one on the outside of the main body.
The cylinder (76) pushes out the seal bar (77) in the chamber toward the sealing stand (78) to heat-seal the bag opening, and then the third cylinder (79) pushes out the cutter (80). The bag can be cut (82) between the seal portion (81) and the tear hole (69) as shown in FIG.

0012

[Effects] In the present invention, a bag that has been filled with an object to be packaged and is suspended by a clamp is directly clamped and received in a divisible pressure chamber immediately before being released from the clamp, and the bag is transferred to the pressure chamber. This system uses a perforator knife to open a hole in the bag to remove the air inside the bag, and then uses a sealing mechanism to seal the opening of the bag. This has the effect of eliminating errors in vacuum packaging, compared to devices where bags are transferred between the clamps of the vacuum packaging machine via the clamps of the transfer mechanism, which often causes bag clamping errors.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a partially enlarged sectional view of the vacuum packaging machine shown in the previous figure.

FIG. 3 is an explanatory diagram of a bag being held between the pressure chambers.

FIG. 4 is a plan view of a mechanism for opening and closing each pressure chamber.

FIG. 5 is an explanatory diagram of a packaged product.

FIG. 6 is an explanatory diagram of a conventional example.

[Explanation of symbols]

(20)...Clamp (21)...Rotor (22)...Bagging machine (24)...Bag (25) (26)...Parts (27)...Pressure chamber (28)...Rotor (29)...Vacuum packaging machine (34)...Movable disk (36)...Driving shaft (39)…Vineva mechanism (68)...Punching knife (72)...Fixed disk (74)...hose (77)...Seal bar

Claims (1)

[Claims] Claim 1: A plurality of sets of two clamps are rotated intermittently along a circular orbit by a pitch equal to the installation interval of each clamp, and when the clamps are at a stop position, the clamps are first rotated. After supporting the bag, filling the bag with the item to be packaged,
A bagging machine that finally releases the bag from the clamp, and multiple sets of airtight pressure chambers made of two separable members are rotated intermittently along a circular orbit, and the bag is airtight while rotating. and a vacuum packaging machine configured to apply a vacuum inside the chamber, the pressure chamber being configured such that the upper surface of the pressure chamber is located below the clamp,
The bag filling machine and the vacuum packaging machine are installed with a difference in height, and after the bag supported by the clamp is received into two divided and rotating members, these two members are closed to form the bag. A rotary vacuum packaging device that is configured by holding a hole in a pressure chamber, and also has a perforating knife and a sealing mechanism inside the pressure chamber.