JPH0540106U - Bag discharge device in vacuum packaging machine - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To ensure that bags in the bag discharge process of a vacuum packaging machine are delivered to the discharge conveyor in a consistently good condition. [Arrangement] An arm that moves forward and backward in association with intermittent rotation of the table is provided at the front position of the process of discharging the bag 1 of the vacuum packaging machine, and a rod equipped with a suction cup 13a is attached to the tip of the arm. In the forward movement, the suction board 13a is brought into contact with the bag 1 to fix it by suction, and the stand 10 is provided with a slide stand 14 whose height and inclination angle can be appropriately adjusted with respect to the lower position in the backward movement trajectory. It is configured to be arranged between the transfer conveyor 17 and the transfer conveyor 17.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bag discharging device in a vacuum packaging machine for foods and the like.

[0002]

[Prior Art]

FIG. 3 shows an outline of a conventional automatic packaging system, which comprises a filling device A for filling a bag 1 with a filling material and a vacuum packaging device B for vacuum-treating the bag 1 containing the filling material. In the filling device A, the bag 1 in the storage box M is picked up, and while being held by the chuck 2, the filling is stored in the bag 1 with intermittent rotation of the table T ₁ , and one step before the final step of the one rotation. In the process (section 7 in the illustrated example), it is delivered to the vacuum packaging device B.

In the vacuum packaging device B, however, the bag 1 is housed in the vacuum chamber 3, and after the table T ₂ is intermittently rotated, the vacuum process and the bag mouth sealing process are performed, and then the final step 1 of the one revolution is performed. In the previous step (section 11 in the illustrated example), it is taken out from the vacuum chamber 3 and discharged to the next step.

[0004]

[Problems to be solved by the device]

 In the above, the bag 1 is gripped by the chuck in the vacuum chamber 3 and subjected to vacuum processing and sealing processing in a suspended state. FIG. 4 shows the gripped state. The bag 1 is clamped at both upper ends of the bag 1 by a chuck 2 composed of movable claws 2a, 2a and fixed receiving parts 2b, 2b. In 2a, the rod 5 is reciprocated in the directions of arrows (a) and (b) by the rotation of the cam 4, and the opening and closing operations of the arrows (c) and (d) are performed via the crankshaft 6. When releasing, the movable claws 2a, 2a are opened as shown by the dotted lines in the figure, dropped onto a conveyor (not shown), and discharged to the next step.

By the way, the sealing process of the bag mouth is performed by pressing and fusing the hot plate from both sides of the bag. Since the sealing position is close to the chuck 2, the melted portion spreads to the gripping position of the chuck. In some cases, especially when the bag 1 is lightweight, the bag 1 may be fused and may not drop even if the movable claws 2a and 2a are opened.

By the way, conventionally, as shown in FIGS. 5 and 6, the receiving plate 7b is pushed by the push rod 7a attached to the tip of the cylinder 7, the base plate 8 is rotated around the shaft 9, and the bag 1 is chucked by the end plate 8a. It is pushed away from K2 and dropped. However, in such a method, the bags dropped on the conveyor are placed in irregular postures, which causes a problem in the work of the next process.

[0007]

[Means for Solving the Problems]

 The present invention is intended to solve the above problems, and is characterized in that it moves forward and backward in front of the rotary table where the vacuum chamber is opened, in association with intermittent rotation of the rotary table. An arm is provided, and a rod equipped with a suction cup is attached to the tip of the arm, and the forward movement of the rod causes the suction cup to come into contact with the bag so that it is suction-fixed. In addition to installing a sliding table that can adjust the height and inclination angle appropriately toward the discharge conveyor via a stand, cut the vacuum on the sliding table and drop the bag that is suction-fastened by the suction cup. As a result, a bag that is always in a constant state can be discharged toward the discharge conveyor.

[0008]

[Action]

 A bag discharge device consisting of a suction cup and a slide is installed at the bag discharge point of the vacuum packaging machine, and the bag is held securely by the suction cup and correctly dropped onto the slide.

[0009]

【Example】

FIG. 1 is a plan view of the device of the present invention, and FIG. 2 is a side view. 10 is a stand installed upright in front of the bag discharging process of the vacuum packaging machine, which is internally provided with a drive shaft 11 and is fixed to the shaft end by driving a motor (not shown) in conjunction with intermittent rotation of the table T ₂ . The arm 12 is adapted to swing the arrows (e) and (e) toward the bag 1 held by the chuck 2 on the front surface of the table T ₂ . Reference numeral 13 is a suction rod attached to the tip of the arm 12, and when the suction cup 13a at the tip comes into contact with the bag 1 by the forward movement (e) of the swinging action, the bag 1 is sucked and fixed by suction means (not shown).

At the same time when the suction cup 13a is suction-fastened, the grip claws 2a, 2a of the chuck 2 are released, and the arm 12 is moved backward (f) so that the suction cup 13a moves backward while gripping the bag 1. To do.

Reference numeral 14 denotes a slide table arranged in the trajectory of the backward movement of the arm 12, which is attached to the stand 15 via the bracket 16 at an appropriate height and inclination angle, and is connected to the discharge conveyor 17 In the meantime, the suction cup 13a is adapted to receive the bag 1 to which suction is fixed.

The device of the present invention has the above-described structure, and the bag 1 which has been subjected to the vacuum treatment and the sealing treatment sequentially comes to the position shown in the figure with the intermittent rotation of the table T ₂ and stops, and the door of the vacuum chamber is opened. Then, the drive shaft 11 rotates, and the arm 12 moves forward in the direction of the arrow (e) to bring the suction cup 13a at the tip of the rod 13 into contact with the bag 1 so that the suction cup 13a holds the bag 1 by suction.

As a result, the chuck claws 2a, 26 are released, the arm 12 moves backward in the direction of the arrow (f), the vacuum of the suction cup 13a is released above the slide base 14, and the bag is closed. 1 is dropped and the bag 1 is slid toward the discharge conveyor 17. The falling distance L of the bag 1 onto the slide table 14 and the inclination angle θ depend on the size and contents of the bag 1. The dropped bag 1 slides a certain distance on the slide table in a good state, is placed on the discharge conveyor in the correct posture, and is sent to the next process.

[0014]

As described above, according to the device of the present invention, the bag 1 sent in the bag discharging process in the vacuum packaging machine is surely sucked and gripped by the suction cup 13a so that it can be stored in a desired specific place. It can be carried and dropped onto a slide table, in which case the slide table can always slide the bags in a constant and good condition and deliver them to the discharge conveyor, so that the bags are respectively placed on the conveyor. It will be carried out to the next process in the correct posture and in a regular condition, and the work of the next process will be carried out smoothly without any hindrance.

[Brief description of drawings]

FIG. 1 is a schematic plan view of the device of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is an overall process diagram of an automatic packaging machine to which the present invention is applied.

FIG. 4 is a schematic side view illustrating a conventional bag discharge state.

FIG. 5 is a front view of the same.

FIG. 6 is a side view of the same.

[Explanation of symbols]

 1 Bag 2 Chuck 3 Vacuum Chamber 7 Cylinder 10 Stand 11 Drive Shaft 12 Arm 13a Sucker 14 Sliding Table 17 Discharge Conveyor

Claims (1)

[Scope of utility model registration request] 1. A vacuum treatment and a sealing treatment are sequentially performed by intermittent rotation of a table provided with a large number of vacuum chambers.
At the end of rotation, that is, at the front of the process of discharging the bag from the released vacuum chamber, an arm that moves back and forth in association with the intermittent rotation of the table is provided, and a suction plate is provided at the tip of the arm. By attaching a rod and advancing it, the suction plate abuts against the bag and sucks and fastens it, and the height and inclination angle can be adjusted appropriately with respect to the lower position in the backward moving trajectory. In addition to arranging the slide table toward the discharge conveyor via the stand, the bag fixed in suction by the suction cup is evacuated and dropped on the slide table to constantly discharge the bag toward the discharge conveyor. A bag discharging device in a vacuum packaging machine, which is configured to be possible.