JPH041043Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is a tape guide for a packaging machine, more specifically, a tape guide for arranging a tape around the outer periphery of a package placed on a table in an automatic packaging machine. It concerns tape guides.

[Conventional technology and problems]

The automatic packing machine has table 1 as shown in Figure 1.
A tape guide 3 for guiding the thermoplastic tape is erected on the upper surface of the upper lid 2 attached to the table 1, and this guide 3 is covered with a cover 4.Although not shown in the drawings, a tape feeding and tightening mechanism is provided inside the table 1. A first clamp mechanism on the tape tip side, a second clamp mechanism that fixes the overlapping portion of the upper and lower tapes, a tape welding mechanism that melts the overlapping surfaces of the upper and lower tapes with a heater and welds them by applying pressure, and The tape A pulled out from the reel 5 is fed into the tape guide 3, and this tape is placed around the outer periphery of the package placed on the top lid 2.
After clamping the leading edge of the tape with a clamp, a tightening process is performed to wrap the tape removed from the tape guide 3 around the outer circumference of the packaged item.After this, the second clamp clamps the upper and lower tapes, cuts the lower tape, and tightens the upper and lower tapes. Welding and welding are performed sequentially.

By the way, the tape guide 3 has a tape guide path that has a U-shaped cross section and is open on one side, and is arranged on the opening surface of this guide path, with one longitudinal side fixed to the guide path and the opening surface The elastic plate is made of rubber or other material that can be elastically opened and closed. During the tape feeding process, the elastic plate prevents the tape from coming out of the guiding path, and also reduces its diameter during the tape tightening process. The tape forces the elastic plate open to allow the tape to be removed from the guideway.

However, if an elastic plate made of rubber is installed along the entire length of the taxiway, the bending distance of the elastic plate becomes longer when the tape leaves the taxiway, and the elastic plate has stiffness, so the tape tightening process is difficult. There is a problem in that the tensioning mechanism has to be large and powerful because the resistance is large.

[Purpose of invention]

This invention was made to solve the above-mentioned problems, and the purpose is to provide a tape guide that does not generate large resistance during the tape tensioning process.

[Means for solving problems]

In order to solve the above problems, this invention uses a tape guideway with a cross-sectional shape that is open on one side,
This tape is arranged on the opening surface of the guideway, one longitudinal side is fixed to the guideway, and the tape consists of an elastic plate that can freely open and close the opening surface, and the fixed side of the elastic plate is the side of the opening surface. It has a structure in which cuts are provided intermittently in the longitudinal direction at positions along the edge.

[Effect]

During the tape feeding process, the opening of the guideway is closed by an elastic plate, so the tape is fed along the entire length of the guideway, and during the tape tightening process, the tape, which reduces in diameter, pushes the elastic plate open and closes the guideway. Break away from within.

At this time, since cuts are provided intermittently along the opening edge of the guide path in the attachment portion of the elastic plate, the bending portion is weak, and the tape separation resistance during the tightening process is reduced.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in FIG. 2, the tape guide 3 is composed of a tape guide path 11 and an elastic plate 12 that can open and close the opening of the guide path 11. The tape guide path 11 has a U-shaped cross section and an opening. It is formed in the shape of a partially separated frame with the inside surface, vertical portions on both sides vertically penetrate the upper lid 2, and lower portions with opposite ends facing each other with an interval are attached to the lower surface of the upper lid 2 using a plurality of mounting brackets 13. Fixed.

The tape guiding path 11 is provided with a flange 14 projecting outward over the entire length on one side edge of the opening surface, and the elastic plate 12 is formed into a band shape using rubber or a synthetic resin having the same effect. One side along the longitudinal direction is overlapped with the surface of the flange 14, and this overlapping part is fixed to the flange 14 using a holding plate 15, bolts, and nuts 16.

In its natural state, this elastic plate 12
In addition to closing the opening surface of the guideway 11, during the tape tightening process, when pushed open by the detached tape A, it bends along the inner edge of the holding plate 15 and closes the opening surface of the guideway 11. It will open.

Note that the inner edge of the presser plate 15 and one edge of the opening surface substantially coincide with each other.

Cuts 17 are provided intermittently along the longitudinal direction in the portion of the elastic plate 12 that is bent along the presser plate 15.

The cut 17 is a rectangular long hole 17 in the illustrated case.
a, a part of the width direction is sandwiched between the flange 14 and the holding plate 15, and the remaining part is located on the opening surface.

Due to the formation of the cuts 17, the elastic plate 12 has a partially weakened stiffness over the entire length of the bent portion when the tape is removed, and is rich in elasticity.
The occurrence of bending resistance (2) can be reduced.

〔effect〕

As described above, according to this invention, because of the above configuration, during the tightening process to remove the tape from the tape guideway, the bending resistance of the elastic plate is reduced, and the tape is removed from the guideway. can be carried out smoothly, and the tape tensioning mechanism can be miniaturized.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of a packing machine, FIG. 2 is a perspective view of a tape guide according to this invention, and FIG. 3 is a cross-sectional plan view showing a part of a packing machine using the same. 11... Tape guideway, 12... Elastic plate, 14... Flange, 15... Holding plate, 17...
...cut.

Claims (1)

[Scope of utility model registration request] Consists of a tape guideway with a cross-sectional shape that is open on one side, and an elastic plate that is placed on the open surface of the tape guideway, one longitudinal side is fixed to the guideway, and closes the opening surface so that it can be opened and closed. and at a position along the side edge of the opening surface on the fixed side of the elastic plate.
A tape guide for a packaging machine in which cuts are made intermittently in the longitudinal direction.