JP2009000813A - Deburring machine and method for removing burr - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the following problem: a thin burr in a blow-molded article has to be cut off by manual works by an operator with the use of a knife and the burr can hardly be removed at one try. <P>SOLUTION: The front and rear blades of a deburring machine having the front and rear blades which are attached approximately in parallel are brought into contact with the thin burr at the same time and is so moved as to slide on the blow-molded article, and the front blade catches the burr and pulls it. Tension is generated in the burr 5 positioned in the clearance B between the front and rear blades when the burr is pulled by the front blade 11. The rear blade 12 is pushed there to cross the tension direction to cut easily into the burr 5. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a deburring device for removing burrs from a blow molded article and a method for removing burrs.

As a prior art relating to a method for removing burrs from a blow molded product, “the most common deburring method is that an operator needs to remove a molded product with burrs from a mold. It is known that burrs are cut by hand.
JP 2001-62903 A

That is, the thick burrs of the blow molded product taken out from the mold are torn off by the operator's arm force, and the remaining thin burrs are finished with a knife or the like.

However, since the finish depends on the sharpness of the knife and the efficiency depends on the skill level of the operator, there is a drawback that stable production cannot be achieved by the conventional method.

Hereinafter, it will be described in more detail with reference to the drawings. FIG. 1 is a cross-sectional view in the vicinity of the cutting blades 3 and 3 of a conventional blow mold split mold 2 and 2. The blow molded product 1 is shaped with a thickness burr 4 in the divided molds 2 and 2.

FIG. 2 is a cross-sectional view of the blow molded product 1 released from the split molds 2 and 2. A thin burr 5 is formed in a portion sandwiched between the cutting blades 3 and 3 between the blow molded product 1 and the thick burr 4.

FIG. 3 shows a cross-sectional view of the blow molded product 1 after the thickness burr 4 is torn off by the operator's arm force and the thin burr 5 is left.

The thin burr 5 needs to be scraped off with a knife manually by an operator, but the thin burr 5 is soft, supple and easy to sleep, so it is often impossible to scrape off at once. There was a drawback that it was necessary to rub, and it was very inefficient and the finish was not beautiful.

The problem to be solved is that thin burrs of blow-molded products need to be scraped off with a knife manually by an operator, but cannot easily be scraped off once. The present invention has been made to solve the above-described points.

In order to achieve the above object, the present invention is characterized in that it is a deburring device having a front blade and a rear blade mounted substantially in parallel.

Further, secondly removing the burrs from the blow-molded product by lightly applying the front and rear blades of the deburring device simultaneously to the burr of the blow-molded product and sliding the burrs on the blow-molded product. With the main features.

According to the present invention, the thin burr located in the clearance between the front blade and the rear blade is tensioned by being pulled by being pulled by the front blade, and the rear blade is moved in the tension direction to the thin burr. Since it is easily cut into the thin burr by pushing it in the direction intersecting with, there is no need to rub the same place with a knife many times, and there is an advantage that the efficiency is improved and the finish becomes beautiful.

There is no need to rub the same place with a knife many times to remove burrs from blow molded products, and it has a front blade and a rear blade mounted in parallel for the purpose of improving efficiency and making the finish beautiful. Using a deburring device, the front blade and the rear blade of the deburring device are simultaneously lightly applied to the burr of the blow-molded product, and the burr is removed by sliding on the blow-molded product. It realized without impairing economy.

The configuration of the present invention will be described based on the embodiments of the invention as follows. In addition, the same code | symbol as a prior art example represents the same member.

FIG. 4 is a view taken in the direction of arrow A in FIG. 3 showing one embodiment of the present invention. The deburring device 7 has a front blade 11 and a rear blade 12 mounted substantially in parallel.

Next, the operation of the present invention will be described. The front blade 11 and the rear blade 12 of the deburring device 7 are simultaneously lightly applied to the thin burr 5 and moved so as to slide on the blow molded product 1 in the direction of the deburring device traveling direction 10 shown in the figure.

At this time, the front blade 11 is caught by the thin burr 5 so as to pull the thin burr 5 in the deburring direction 10. In this case, it is sufficient if the front blade 11 cuts into the thin burr 5 as it is, and even if the cutting fails, the thin burr 5 positioned at the clearance B between the front blade 11 and the rear blade 12 is not included. Tension is generated by being hooked and pulled by the front blade 11, and the rear blade 12 is pushed in a direction crossing the tension direction, so that it can be easily cut into the thin burr 5.

As described in the above embodiments, according to the present invention, when the thickness burr of the blow molded product is torn off by the operator's arm force and the remaining thin burr is finished, the front and rear blades mounted in parallel are arranged. The front blade and the rear blade of the deburring device having the tool are simultaneously lightly applied to the thin burr and moved so as to slide on the blow molded product so that the front blade is caught by the thin burr and pulls the thin burr. become.

Further, the thin burr 5 located at the clearance B between the front blade and the rear blade is tensioned by being hooked and pulled by the front blade 11, and the rear blade 12 is moved there. Since it is easily cut into the thin burr 5 by being pushed in the direction crossing the tension direction, there is no need to rub the same place with a knife many times, and the efficiency is improved and the finish is also beautiful.

The present invention can be used to finish thin burrs of blow molded products.

Sectional view near the cutting edge of a conventional blow mold split mold Cross-sectional view of blow-molded product released from the split mold Cross-sectional view of a blow-molded product that only removes thick burrs and leaves thin burrs. FIG. 3 is a view taken in the direction of arrow A in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Blow molding 2 Divided metal mold 3 Cutting edge 4 Thick burr 5 Thin burr 7 Deburring machine 10 Deburring machine traveling direction 11 Front blade 12 Rear blade B Clearance

Claims (2)

Deburring device having front and rear blades mounted substantially in parallel 2. A method of removing burrs from a blow-molded product by lightly applying the front and rear blades of the deburring device according to claim 1 simultaneously to the burr of the blow-molded product and sliding the burr on the blow-molded product.