Machine for opening bag by static electricity

Abstract

To solve the problem that an opening is possibly adhered to stay closed by static electricity, etc. even if air is occasionally blown thereto, although there is an art to insert a product into a bag with an opening thereof made spread broadly by blowing air thereto in an automation of product bagging.SOLUTION: A machine, for spreading an opening of a bag of organic polymer compound at one end thereof according to the present invention, is adapted to previously attach to a hand thereof something to cause static electricity by friction with an organic polymer compound, such as fur, glass, mica, wool, nylon, or silk, and negatively electrify the opening of the bag by rubbing the bag of organic polymer compound with the hand of the machine, and then clamp the negatively-charged opening of the bag by a positively-charged electrode jig so as to spread the electrode jig and thereby spread the opening of the bag while attracting it with a force of static electricity of the electrode jig. This allows positive insertion of a product, etc. into the bag through the opening of the bag.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention can be applied to any industry that requires opening a bag 2 of an organic polymer compound having an opening 3 at one end. It can be applied to industries where there is a product bagging operation.

Background Art

[0002] In this type of bagging, a technique is used in which air is blown into the opening 3 of the bag to widely open it, and the product is inserted into the bag. Also, a technique such as opening the bag by suction of a suction pad as in Patent Document 1 is used.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the former technique of the background art, one idea for automating the bagging of any product is to widely open the bag by blowing air into the opening 3 of the bag and insert the product into the bag. For this purpose, it is necessary to surely blow air to open the opening 3, but sometimes even if air is blown, the opening 3 may be attracted by static electricity or the like and remain closed. The present invention solves this problem.

Means for Solving the Problems

[0005] In the present invention, an electrostatic charge is generated by friction between an organic polymer compound bag 2, for example, a bag 2 made of vinyl chloride, polypropylene, polyethylene, etc., and a mechanical hand 1 of a machine for opening an opening 3 of the bag with an opening 3 at one end. Furs, glass, mica, wool, nylon, silk, etc. are attached, and the opening 3 of the organic polymer compound bag 2 is rubbed with the electrostatic charge generated by friction with the organic polymer compound, and the opening 3 of the bag with an opening 3 at one end of the organic polymer compound is negatively charged.

[0006] Then, the opening 3 of the negatively charged bag is sandwiched by a jig 5 of a positively charged electrode, and the jig 5 of the electrode is opened to open the opening 3 of the bag while being attracted by the electrostatic force of the jig 5 of the electrode.

Advantages of the Invention

[0007] In the present invention, a product or the like can be reliably inserted into the bag 2 from the opening 3 of the bag by a machine that opens the bag by static electricity.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Embodiments for Carrying Out the Invention

[0009] In the present invention, as the bag 2 with an opening 3 at one end, a bag 2 made of a polymer compound such as vinyl chloride, polypropylene, or polyethylene is used. The bag 2 is loaded into a machine for opening the opening 3. First, the opening 3 of the bag is rubbed with a mechanical hand 1 to which furs, glass, mica, wool, nylon, silk, etc. are attached, and the opening 3 of the bag is negatively charged.

[0010] Here, organic polymer compounds such as vinyl chloride, polypropylene, and polyethylene are likely to carry negative static electricity, while fur, glass, mica, wool, nylon, and silk are likely to carry positive static electricity.

[0011] After rubbing the opening 3 of the bag 2 made of an organic polymer compound that is likely to carry positive static electricity against one that is likely to carry negative static electricity, sandwich the opening 3 of the negatively charged bag with the electrode jig 5 charged positively from the power source 4, and when the opening 3 of the bag and the electrode jig 5 are attracted by the electrostatic force, open the electrode jig while the opening 3 of the bag remains attracted.

[0012] In this way, products and the like can be reliably inserted into the bag 2 from the opening 3 of the bag.

[0013] Figs. 1, 2, and 3 show embodiments of a machine for opening a bag by static electricity according to the present invention. As shown in Fig. 1, a hand 1 attached with materials such as fur, glass, mica, wool, nylon, and silk that generate static electricity by friction rubs the opening 3 of the bag 2 made of an organic polymer compound such as vinyl chloride, polypropylene, and polyethylene left and right to charge the opening 3 of the bag negatively.

[0014] As shown in Fig. 2, sandwich the opening 3 of the bag with the electrode jig 5 charged positively by the power source, and let the opening 3 of the bag be attracted to the electrode jig 5 charged positively by the electrostatic force.

[0015] As shown in Fig. 3, widely open the electrode jig 5 charged positively and widely open the opening 3 of the bag.

Explanation of Reference Numerals

[0016] 1 Hand attached with materials that generate static electricity by friction (fur, glass, mica, wool, nylon, etc. are attached) 2 Bag made of organic polymer compound (materials such as vinyl chloride, polypropylene, and polyethylene) 3 Opening of the bag 4 Power source 5 Electrode jig charged positively 6 Operating mechanism of the electrode jig

Claims

1. A machine that rubs the opening of a bag with an opening at one end using a mechanical hand, and the opening becomes negatively charged with static electricity due to the friction. The charged part is clamped by a jig of an electrode to which a positive voltage is applied by a power source. When the opening of the bag is attracted to the electrode jig by electrostatic force, the electrode jig opens to open the opening of the bag.

2. A machine for opening the opening of a bag with a fur attached to the part that rubs the opening of the bag according to Claim 1.

3. A machine for opening the opening of a bag with glass attached to the part that rubs the opening of the bag according to Claim 1.

4. A machine for opening the opening of a bag with mica attached to the part that rubs the opening of the bag according to Claim 1.

5. A machine for opening the opening of a bag with wool attached to the part that rubs the opening of the bag according to Claim 1.

6. A machine for opening the opening of a bag with nylon attached to the part that rubs the opening of the bag according to Claim 1.

7. A machine for opening the opening of a bag with silk attached to the part that rubs the opening of the bag according to Claim 1.

8. A machine for opening the opening of a bag with an opening at one end, where the material of the bag is an organic polymer compound, according to Claim 1, Claim 2, Claim 3, Claim 4, Claim 5, Claim 6, and Claim 7.

9. A machine for opening the opening of a bag with an opening at one end, where the material of the bag is vinyl chloride, according to Claim 8.

10. A machine for opening the opening of a bag with an opening at one end, where the material of the bag is polypropylene, according to Claim 8.

11. A machine for opening the opening of a bag with an opening at one end, where the material of the bag is polyethylene, according to Claim 8.

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