JPH0798525B2 - Vacuum packaging bag degassing / molding equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a degassing / molding apparatus for vacuum packaging bags used in automatic packaging machines.

[0002]

2. Description of the Related Art FIG. 3 shows an outline of a general automatic filling and vacuum packaging system for foods and the like. A filling device A for filling a filling in the bag 1 and a vacuum treatment of the bag 1 containing the filling. Vacuum packaging device B. Storage box M in filling device A
The bag 1 in the inside is picked up, and the packing is stored in the bag 1 with intermittent rotation of the table T _{1 while} being held by the chuck 2, and the process one step before the final process of that one rotation (section 7 in the illustrated example) At that time, it is delivered to the vacuum packaging device B. Then,
In the vacuum packaging device B, the bag 1 housed in the vacuum chamber 3 is vacuum-processed along with the intermittent rotation of the table T ₂ and taken out to the outside.

By the way, the bag 1 delivered from the filling device A to the vacuum packaging device B is not yet sealed, and therefore, when it is suspended in the vacuum chamber 3 via a chuck, the inside thereof is Most of the fillings g are irregularly offset in the lower part of the bag 1 as shown in A (front view) and B (side view) of FIG.

[0004] Such a biased stored bag is vacuum-packed.
It looks bad when worn, and it can be flattened later.
It is difficult and will hinder the packaging work in the next process.
The bag is molded before the mouth-sealing . Figure 4 is a vacuum package
The figure shows a conventional bag degassing and forming apparatus provided in step 2 of the loading device B, in which the bag 1 is received by the chuck 4 in the vacuum chamber 3 with the chamber lid 3a opened.
It is hung along. And the bag 1 in this state
The pressing means 6 such as a cylinder is operated to press the pressing plate 7 from the front to degas and mold the chamber.
Close the lid 3a, after vacuum-mouth sealing seal, has become so that to discharge to the outside.

[0005]

However, in the above-mentioned conventional method, since the pressing plate 7 is operated from the front side (horizontal direction), a small amount of a highly viscous liquid such as boiled beans or Tsukudani kelp is used as the filling material. Since the mixed packing has low fluidity,
Does not spread evenly over the entire bag, and the pressure inside the bag increases.
There was a problem that the product was crushed .

[0006]

In order to solve the above problems, the present invention provides a cylinder equipped with a roller at its tip and provided with a vertically movable rod, and a cylinder extending upward from the cylinder and containing the above roller. And a moving means for horizontally moving the push-up guide means to the receiving plate side provided on the front surface in the vacuum chamber. in a state of being positioned between the belt hanging and sealed before the bag the receiving plate and push the guide means through the chuck housing and a vacuum chamber, and by operating the push-up guide means and the moving means, the bag and wherein the forming as deaeration, molding is performed while pressing the tip roller raise the rod with sandwich the front side belt.

[0007]

DETAILED DESCRIPTION FIG. 1 is a vertical sectional side view of the device of the present invention, 3
Is a vacuum chamber attached to the circumferential side surface of the rotary table T ₂ , 3a is an opening / closing lid for the chamber, 3b is a bag holding claw in the chamber, 3c is a receiving plate of the bag, and is fixed by a spring 3d. The back surface of the bag 1 held by the holding claws 3a is supported by the spring pressure of 16 and 16 is a mouth.
It is a sealing and sealing means, and 16a is its heater.
These configurations are the same as conventional ones.

Reference numeral 8 denotes a push-up guide means arranged on the front side of the cylinder, which includes a cylinder 8c for vertically moving a rod 8b having a roller 8a at its tip, and a vertically moving rod 8b.
Is stretched the belt 10 loosely so as to cover the rollers 8a Tei
It That is, a state in which the support plate 9 of the cylinder 8c is extended upward and bent in an L shape toward the vacuum chamber side, and the portion is used to wrap the roller 8a inward of the pushing-up guide means. The belt 10 is loosely stretched with the belt 1.
One end of 0 is fixed to the upper end of the support plate 9, and the other end is fixed to the front side of the cylinder 8c. Incidentally, k is a guide plate of the roller 8a attached to the inner surface side of the support plate 9, and is attached together with the roller 8a so that those having different diameters and different wall thicknesses t can be detachably attached. is there.
This is so that appropriate forming shape condition is changed depending on the type and amount of filler.

Reference numeral 11 is a push-up guide means 8 having the above-mentioned structure.
Is a moving means for moving the vacuum chamber 3 toward the inside of the vacuum chamber 3 by a predetermined distance, and is installed at a position of the gantry 12 that does not interfere with the opening / closing operation of the opening / closing lid 3a of the vacuum chamber 3, A fluid cylinder 13 is provided on the side opposite to the vacuum chamber 3, and a piston rod 13a of the fluid cylinder 13 is inserted into a through hole 12a formed in the pedestal 12 and fixed to the support plate 9 of the push-up guide means 8. Therefore, the push-up guide means 8 is moved forward and backward in the horizontal direction of the arrows (a) and (b) by the operation of the fluid cylinder 13. At this time, 14 is another guide rod that supports the support plate 9 at a lower position, and the other end of the rod is inserted through another through hole 12b formed in the pedestal 12 for stable sliding action. It is meant to be done.

2A, 2B, and 2C are explanatory views of the operation, and the operation of the above-mentioned constituent device will be described. Figure 2 A is shows the state before molding operation is suspended through as gripping claws 3b along the bag 1 is receiving plate 3c accommodating the filling g the vacuum chamber 3. At this time, the mouth of the bag 1 is not yet sealed, and the filling g is in a state of being biased downward.

In this state, the moving means 11 is operated to move the pushing-up guide means 8 in the horizontal direction of the arrow (a) through the piston rod 13a so as to push the belt 10 against the front surface of the bag 1. At this time, since the belt 10 is provided with slack, the belt 10 is in a state of conforming to the front shape of the bag 1.

[0012] Then when actuated cylinder 8c of the push-up guide means 8 raises the rod 8b, as shown in FIG. 2 B, roller 8a of tip rolls between the guide plate k and the belt 10, this operation Acts to push up the front surface of the bag 1 from below via the belt 10.

Thus, the filling g, which has been biased downward in the bag 1, gradually and reasonably and efficiently spreads over the entire bag as the rod 8b rises, and the degassing is efficiently performed.
As shown in 2C, the bag 1 is flatly molded.
Incidentally, the degree of slack in the belt 10 is of being performed by appropriately adjusting the mounting bolt 15 according to the contents of the dimensions of the bag 1 or packing g.

001 4

As described above, the present invention is provided with respect to the front surface of the bag 1.
The belt 10 with a slight slack is pressed, and as the rod 8b rises, the tip roller acts to push up the filling material in the bag from below via the belt 10. The bag can be spread over the entire body efficiently, and can be efficiently degassed, which makes it possible to form the bag into a flat and uniform shape. In addition, handling of the product after the fact becomes extremely easy.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a device of the present invention.

FIG. 2 is an operation explanatory view.

FIG. 3 is a schematic diagram of a vacuum packaging system.

FIG. 4 is a sectional view of a conventional device.

FIG. 5 is a front view and B is a side view in a fracture explanatory view showing a molded state of a bag by a conventional device.

[Explanation of symbols]

 1 bag 3 vacuum chamber 5 receiving plate 8 push-up guide means 10 belt 11 moving means 12 frame

Claims (1)

[Claims] 1. A cylinder equipped with a roller at its tip and provided with a rod that can move up and down, and a belt extending upward from the cylinder and loosely extending in the vertical direction on the front surface of the cylinder so as to enclose the roller. The push-up guide means and the moving means for horizontally moving the push-up guide means to the receiving plate side provided in the front surface of the vacuum chamber are provided. The filling material is stored and suspended in the vacuum chamber via a chuck. was in a state of being positioned between the belt of the receiving plate and push the guide means bags before sealing, by operating the push-up guide means and the moving means, the distal end roller to raise the rod with sandwich the front side of the bag with a belt deaeration of the vacuum packaging bag in which while pressing the degassed and molding were characterized by forming to take place,
Molding equipment.