JPH03200532A - Packaging device for circular knitted fabric or the like - Google Patents

Abstract

PURPOSE:To lighten the labor required for packaging operation and permit packages to be reduced in volume by a method wherein a hopper is provided with an entrance opening for forcing the fabric or the like to be packaged thereinto and an exit opening for forcing the same out therefrom and with an air outlet passage extending from the exit to the entrance opening in its interior. CONSTITUTION:A packaging material 5 is attached around the outer periphery of a hopper 1 and its ends are sealed into the form of a bag. When fabric M is forced into the hopper 1 from its entrance opening 2, the fabric M is moved toward its exit opening 3 while being compressed. Since the air in the hopper 1 and in the end part of the bag-like packaging material 5 is displaced by the fabric moving forward and escaped from the side of the exit opening 3 through an air outlet passage 4 to the side of the entrance opening 2, no air compression resistance is created by forcing the fabric into the hopper. When a succeeding fabric M pushes a preceding fabric M to move it to a take-away conveyor 11, a pressing device 9 applies a pressing force to the outside of the packaging material 5 to further compress the fabric M so as to expel the air in the end part of the packaging material 5 from its unsealed rear part through the air outlet passage 4 to the outside. Thereafter, a heat cutter 7 seals the rear end of the bag and, at the same time, forms the front end of the succeeding bag and the packaging of the fabric M reduced in volume is completed for take-away.

Description

[Detailed Description of the Invention] Industrial Field of Application This invention is applicable to the case where a predetermined amount of circular knitted fabric unloaded from a winding machine or shaken-off fabric is stored in a sealed vinyl film packaging material. The present invention relates to a packaging device for circular knitted fabric, etc., which is designed to reduce the amount of air sealed in a bag together with the fabric etc. during packaging.

Conventional Technology Outline When packaging fabric or the like in a sealed bag made of vinyl film, it is necessary to reduce the bulk of the bag as much as possible. To this end, conventional packaging equipment reduces the bulk of the fabric by pushing the fabric, etc. to be wrapped into a cylindrical hopper and passing it through. The film packaging material was extruded from the tube outlet of the hopper while being covered, and both ends of the packaging material were heat-sealed using a heat cutter installed at the tip of the tube outlet, and cut at the same time.

Problems to be Solved by the Invention In the conventional apparatus configured as described above, the dough extruded from the tube outlet of the hopper is forced into a bag-shaped packaging material whose front end is sealed by the previous cutting. Become. In addition, inside the hopper, the dough that is pushed into the tube opening later pushes out the previous dough, so there is no place for air to escape on either the side being pushed out or the side being pushed, and the dough is sealed inside the packaging material along with the compressed air. be done. therefore,
There is a lot of resistance when passing the dough through the hopper,
It requires a lot of effort.

Moreover, the packaged state is bloated and bulky, and when stacked, it is easy to slip and cause the package to collapse. For this reason, it has been a challenge for this type of packaging apparatus to package products using simple equipment, requiring less labor, and avoiding bloated packaging.

Means for Solving the Problems Therefore, the present invention provides an inner brim having a tube opening into which the dough to be packaged is pushed and a tube outlet through which the fabric, etc. that has passed through the cylinder is pushed out, and a hopper on the outer periphery of the hopper. Circular knitted fabric, etc., equipped with a heat cutter that cuts a cylindrical vinyl film packaging material, which is fitted in a raised shape and accommodates fabric, etc. pushed out from the tube outlet, at the tube outlet to form a sealed bag shape. The present invention provides a packaging device for circular knitted fabric, etc., characterized in that a degassing passage extending from a tube outlet to a tube mouth is provided on the inner surface of a hopper.

Function The packaging device of the present invention configured as described above has the following functions: instead of pushing the fabric reduced in volume inside the hopper into the bag-shaped packaging material that fits over the tube outlet of the hopper, Air in the packaging material enters the deaeration passageway that opens at the tube outlet. Further, the air moving together with the fabric moving forward in the hopper also flows back from the tube outlet to the tube mouth side through the degassing passage. Therefore, air resistance when pushing the dough into the hopper and air resistance when pushing the dough into the bag-shaped packaging material at the end of the tube outlet are either not generated at all or are extremely small.

Further, according to the present invention, next to the heat cutter, the fabric or the like housed in the cylindrical vinyl film packaging material is pressed from the outside of the packaging material before sealing to eliminate any remaining material in the bag. A device equipped with a pressing device configured to perform secondary deaeration of air through the air passage of the hopper compresses the fabric that expands again within the packaging material, and also reduces the amount of air sealed within the packaging material. This has the advantage that the packaging can be made smaller.

Example Embodiments of the present invention will be described below with reference to the drawings.

In the figure, (1) is horizontally suspended on a pedestal F, the left end in the figure is the tube opening (2) into which the fabric M, etc. is pushed, and the right end is the tube outlet (3) through which the fabric M, etc. that has passed through the cylinder is pushed out. An oval cylindrical hopper. (4) A degassing passage created by fixing two bridge-shaped members downward to the bottom along the inner surface of the dovetail hopper H, one end of which opens at the tube outlet (3) of the hopper fx) However, the other end opens into the cylinder mouth (2).

(5) is a rolled roller (6) attached to the other end of the frame F.
) as shown in FIG.
This packaging material (5) is a cylindrical vinyl film packaging material that is fitted from the + tube outlet (3) side to the tube mouth (2) side.
As shown in Fig. 4, it is attached to the outer circumference of the hopper (heavy) so that it can be lifted up sequentially from the tube mouth (2) side, and then it can be raised and lowered to the outside of the tube outlet (3) of the hopper (1). It is cut by a heat cutter (7) provided at the top, and as shown in FIG. 5, the end is sealed in a bag shape and waits for the dough M etc. to be extruded.

The cutter (7) is attached to the upper end of the fluid pressure device (8) installed in the pedestal F, and cuts the packaging material (5) in the transverse direction using electric heat when the cutter (7) is lowered. The cut edges on both sides are heat-fused and sealed together at the top and bottom using a heater.

(9) is a pressing device provided next to this heat cutter (7). This pressing device (9) consists of another fluid pressure device (9a) attached with its stroke facing downward to a column installed on the side of the upper surface of the pedestal F, and a support plate (9b) at its lower end.
(9d) elastically attached to the back side of the body via a spring (9c).

0υ is installed below the suppression device (9) and the tube outlet (
This is a conveyor for taking out the dough M that is pushed out from 3) by fitting the packaging material (5) therein, and after supporting the suppressing action of the pressing device (9) from below, sends it out of the frame F.

(2) is connected to the two fluid pressure devices (8), (9a) and the driving motor m of the conveyor 0υ for carrying out, and, together with the conveyor αD, the heat cutter (7) and the suppression device (9) This is a sensor that controls the operation of the

The hopper f1) is elastically supported in a cantilever manner by the pivot shaft [phase] and the U-shaped leaf spring α field on the cylinder mouth (2) side.
A support roller (4) is provided below the back surface on the side of the tube outlet (3). α0 is an auxiliary roller for feeding and pulling in the packaging material (6), which is provided in contact with the side surface of the hopper (1) and rotates in forward and reverse directions.

Next, to explain the packaging operation of the fabric M using this packaging device, before starting packaging, the packaging material (6) is attached to the outer periphery of the hopper (1) in a rolled-up manner as described above. The end which is cut with a cutter (7) is sealed into a bag shape as shown in FIG. When the fabric M to be packaged is pushed through the tube opening (2) of the hopper (1), the fabric M is compressed into a small shape that follows the internal shape of the hopper (1), and then passes through the tube outlet (3). Move forward to the side.

At this time, the air in the hopper (1) and the air in the end of the bag-shaped packaging material (5) pass through the degassing passage (4) from the tube outlet +31 (111) as the fabric M moves forward. Since the air passes through the inside of the hopper flj and exits to the cylinder opening +21911, there is no compression resistance of the air due to the pushing.

Therefore, the transition from the tube outlet (3) to the end portion of the packaging material (5) is performed smoothly. Then, as shown in FIG. 6, when the dough M before being pushed out by the next pushed dough M reaches the conveyor αυ for carrying out, the motor m is activated and temporarily stops at the position shown in FIG. Conveyor α
Following the stop of υ, the pressing device (9) is activated and the packaging material (6
)D Press the fabric M from the outside, and by the pressure, the fabric M that has expanded once inside the packaging material (5) is further compressed. Due to this compression, the air remaining in the end of the packaging material (5) is moved from the unsealed rear part to the hopper (1).
) side, and the degassing passage (4
) is discharged through. After this secondary degassing is completed, the fluid pressure device (8) is activated, and the heat cutter (7) seals the rear end of the bag opening and at the same time forms the front end of the next bag opening,
Waits for the next dough M to be pressed. On the other hand, the pressing device (9
) and the cutter (7) are reinstated, as you can see.
The discharge conveyor Ql) is restarted, and the dough M, which is sealed at both the front and back and which has been further shaped to reduce its bulk, is discharged after wrapping.

Note that the form of the deaeration passage (4) according to the present invention is not limited to the form of the embodiment, and at least air is discharged from the cylinder opening (2) side to the outside of the hopper in place of the dough M being pushed. It does not necessarily have to be cylindrical as long as it can be formed and has a low resistance shape that does not hinder the movement of the fabric M. Moreover, the installation position is not limited to the bottom surface, but may be provided on the ceiling surface, etc.

Further, the present invention is not limited to packaging circular knitted fabrics, but can also be used for packaging flexible materials.

Effects of the Invention As described above, the present invention provides a packaging device for circular knitted fabrics, etc., in which bulky fabrics, etc. are shaped and sealed in a plastic film in the form of a plastic bag. A deaeration passage is provided to replace the air inside the small brim and the air in the packaging material toward the mouth of the cylinder, so that it can be used easily when compressed air is inserted or pushed during packaging work. Air resistance can be eliminated, labor is reduced, and packaging with a small volume without expansion due to air can be achieved. Therefore, stacking of button packaging fabrics during transportation and storage is easy and does not take up much space, and it is possible to prevent the packaging materials from bursting or collapsing due to weight.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is an elevational view showing an overview of the entire device. FIG. 2 is a plan view of FIG. 1. 3 to 8 are operation explanatory diagrams sequentially explaining the operation of the above device.

Claims (2)

[Claims] (1) A tube mouth (2) into which the fabric M etc. to be packaged is pushed;
A hopper (1) equipped with a tube outlet (3) through which the fabric M, etc. that has passed through the tube is extruded, and a hopper (1) that is fitted around the outer periphery of this hopper (1) in a raised shape and is extruded from the tube outlet (3). In a packaging device for circular knitted fabric, etc., equipped with a heat cutter (7) that cuts a cylindrical vinyl film packaging material (5) containing fabric M etc. at a tube outlet (3) to form a sealed bag. A packaging device for circular knitted fabric, etc., characterized in that a degassing passage (4) extending from a tube outlet (3) to a tube mouth (2) is provided on the inner surface of a hopper (1). (2) The fabric M accommodated in the cylindrical vinyl film packaging material (6) next to the heat cutter (7)
etc. from the outside of the packaging material (5) before sealing, and the remaining air in the bag is secondarily degassed through the degassing passage (4) of the hopper (1). (9) A packaging device for circular knitted fabric, etc., as set forth in claim 1, characterized in that it is provided with (9).