JPH04253607A - Guide frame of packing machine - Google Patents

Abstract

PURPOSE:To fabricate a U-shaped guide frame having various kinds of sizes and forms by use of common members in order to make the constituting members of the guide frame common. CONSTITUTION:A U-shaped guide frame 2 is composed of a unit block 2b constituting a corner and a unit block 2a constituting a straight line connecting this corner. This each unit block has a band path and the axis provided at one end of the unit blocks 2a, 2b is made to insert it into the fitting holes given in the unit blocks 2a, 2b and further, four unit blocks 2b are connected to the numbers of unit blocks 2a corresponding to the length of respective straight line.

Description

[Detailed description of the invention]

0001

[Industrial Field of Application and Summary of the Invention] The invention relates to a guide frame for a packaging machine, and in particular a packaging machine using a band made of synthetic resin, which stands upright on the top of the machine. guide the band within the guide frame, and then,
The present invention relates to the guide frame of the packing machine, which tightens the band and winds the band around the object placed on the machine body. In the present invention, unit blocks each having a band passage and a flap are connected to the guide frame, and various sizes and shapes can be created by combining certain types of unit blocks. This makes it possible to manufacture a shaped guide frame.

0002

BACKGROUND OF THE INVENTION As a device for packaging objects using a belt-shaped synthetic resin band, a device equipped with an inverted U-shaped guide frame that stands upright from the top of the device is in widespread use. As shown in Figure 9, the guide frame (2) that stands upright from the top of the fuselage (1) has an inverted U-shape as a whole, and inside this guide frame (2) A band passage (21) is formed through which the band (B) is inserted,
As shown in FIG. 10, this band passage (21) is installed within the main body (20) of the guide frame (2). Further, the band passage (21) has a cross-sectional shape that opens toward the inner circumference, and this opening portion forms a large number of flaps (4) (
4) is blocked by In this type of packing machine,
The band (B) is once sent into the band passage (21) of the guide frame (2) by the feed tightening device (11) in the body (1), and its tip is connected to the welding and cutting mechanism part in the body (1). (12), and then the band (B) is pulled back by the pull-back operation of the feed tightening device (11), and the tension at this time forcibly opens the flaps (4) (4). The band escapes from the band passage (21) and is wound around the object to be packaged (K) placed on the machine body (1), and then the overlapping part of the band (B) is welded so that the band (B) ) is cut on the upstream side in the supply direction, and packaging is completed. In this case, the guide frame (2) is adjusted according to the specifications such as the size and shape of the guide frame (2) installed on the aircraft (1).
) must be configured. Therefore, flaps (4) (4
), the constituent members of the band passage (21), and even the guide frame (2) must be individually set according to the above specifications. This is a major problem in terms of product management, and is one of the factors that increases the cost of packaging machines.

[0003] In order to eliminate this inconvenience,
The common flap (
4) There is a device that can use (4), but even in this device, the flaps are simply shared, and it is difficult to standardize the constituent members of the main body (20). The present invention has been made in view of the above points, and is directed to "packaged items (
Feed the band (B) into an inverted U-shaped guide frame (2) that stands upright from the outer surface of the body (1) on which K) is placed or in contact with it, and after feeding is completed, insert the tip of the band (B) A guide for a packing machine that pulls back the band (B) while holding it, wraps the band (B) around the object to be packed (K), and then welds the overlapping part of the band (B) and cuts the required part. frame”, guide frames of various sizes or shapes (
The objective is to improve productivity by making it possible to configure 2) using common parts.

0004

[Technical Means] The technical means of the present invention for solving the above-mentioned problems is to provide a guide frame (2) with a plurality of unit blocks (2a) (2a) of a constant length constituting a linear portion thereof. , a plurality of unit blocks (2b) constituting a corner part (2b)
Each unit block (2a) is provided with a band passage (21) formed along the length direction and a flap (4) for closing an open part of the band passage (21). A shaft portion (22) projects from one end of the unit block (2a) in the axial direction, and a fitting hole portion (23) into which the shaft portion (22) is tightly fitted is provided at the other end. The axial end of the unit block (2b) is provided with the shaft portion (
22) or a fitting connection means to which the fitting holes (23) are connected in a fitted state and an arcuate band passage continuous to the band passage (21), and the unit block (2a) (
2a) and the unit blocks (2b) (2b), the band passage (21) is continuous on the inner circumferential side and the guide frame (2) is formed into a U-shape as a whole.

[0005]

[Operation] The above technical means operates as follows. Taking as an example a format in which there are upright sides on the left and right sides of the guide frame (2) and a horizontal side that connects the upper ends, each of the upright sides has a unit block (2b) located at the lower end, and The same number of unit blocks (2a) (2a) are connected to each other. At this time, the unit block (2b) is connected by fitting the shaft part (22) or the fitting hole part (23) of the unit block (2a), and the unit blocks (2a) and (2a) are mutually connected to one unit block. (2a) to the other unit block (2a).
Connect by fitting into the fitting hole (23) in a). Here, since each unit block (2a) is set to a constant length, and since unit blocks (2b) of the same size are used, it is assumed that the heights of both upright sides are the same. Become. Next, the unit block (
When unit blocks (2b) are connected to 2a) and unit blocks (2a) (2a) are connected between these unit blocks (2b) (2b) in a number suitable for the distance between the upright pieces, horizontal sides are formed. be done. The guide frame configured like this (
In 2), the band passage (21) of each unit block is located in a continuous state on the inner peripheral side of the guide frame (2), and in the linear portion of the entire band passage (21), the band passage (21)
The opening section 1) is now closed by the flap (4). And the guide frame (2) configured as above
When installed in the designated position on the fuselage (1), this guide frame (
2) will function in the same way as the conventional guide frame (2). In addition, when the length of the upright side and the length of the horizontal side are different, the number of the unit blocks (2a) (2a) may be set to match the length. This allows you to create a flat U-shaped guide frame (2) or a small equilateral U-shaped guide frame (2).
, a vertically elongated U-shaped guide frame (2), etc. can be manufactured using a common unit block.

[0006]

[Effects] Since the present invention has the above structure, it has the following unique effects. The entire guide frame (2) can be manufactured using unit blocks (2a) (2a) and unit blocks (2b) (2b) of the same configuration, so when manufacturing guide frames (2) with different overall shapes and sizes, This can be achieved by simply adjusting the number of unit blocks (2a) (2a) used, improving productivity. Furthermore, since the guide frame (2) is completed only by connecting unit blocks that are provided with flaps (4) in advance, there is no need to assemble the flaps (4) when assembling the guide frame (2). Even at points,
Productivity will further improve.

[0007]

Embodiments Next, embodiments of the present invention described above will be described in detail with reference to the drawings. In the embodiments shown in FIGS. 1 to 7, guide frames (2) of various sizes can be configured by unit blocks (2a) and unit blocks (2b) having a common configuration. ) is attached to the top of the fuselage (1). In this embodiment, the unit block (2a) is a cylindrical body made of synthetic resin with a rectangular cross section, and has a rectangular cylindrical shaft portion (22) protruding from one end of a main cylindrical portion (24), A hollow portion opened at the other end of the main cylinder portion (24) becomes the aforementioned fitting hole portion (23). The outer shape of the shaft portion (22) is set to be small enough to correspond to the thickness of the wall constituting the fitting hole portion (23). Further, on one longitudinal side of the main cylinder part (24), a band passage (21) surrounded by a pair of mutually parallel longitudinal ribs (R) (R) extends over the entire longitudinal direction. It is formed by The surface on which the ribs (R) (R) are formed becomes the inner peripheral side of the guide frame (2) when assembled to the guide frame (2). Main cylinder part (
24), on the outside of each rib (R) there is a groove (25) open in the same direction as the band passage (21).
Further, an engagement groove portion (26) is formed on the outside thereof. All of these are formed over the entire length of the main cylinder portion (24). Therefore, the unit blocks (2a) (2a) are connected to each other by connecting the shaft portion (22) to the fitting hole portion (2a).
3), a uniform cross-sectional outline will continue. In addition, the band passage (21), the groove part (
25) and the engagement groove (26) are continuous in the axial direction. Furthermore, as shown in FIG. 2, a slit is formed on one surface of the shaft portion (22) extending over a certain range from its tip, and tongue pieces (27) are formed between the slits.
An engaging protrusion (28) is formed in the middle of the tongue (27) to protrude across the tongue (27). And this shaft part (
An engagement recess (29) is formed at a location that coincides with the engagement protrusion (28) when the engagement hole (22) is inserted into the engagement hole (23). Therefore, in the connected state, the unit blocks (2a) (2a) are connected to each other in a manner that prevents them from coming off due to the engagement between the engaging protrusion (28) and the engaging recess (29).

This guide frame (2) is configured to use a flap (4) made of synthetic resin, and the band passage (2) is configured to use a flap (4) made of synthetic resin.
A pair of flaps (4) shown in Figure 5 show the entire area of the opening of 1).
It is closed by (4). Therefore, as shown in FIGS. 3 and 4, the flap (4) has a U-shaped bent cross section (42) connected to the end of a plate-shaped closure plate (41), A hook-shaped cross-section (43) is connected to the opposite end of the bent cross-section (42). The pair of flaps (4) (4) having this structure are installed in such a manner that the bent cross section (42) is fitted into the engagement groove (26), and the ends of the closing plate parts (41) (41) are fitted. If the edges are attached so that they face each other at the center of the band passage (21), the flaps (4) (4) will be attached as shown in the same figure, and the edge of the closing plate (41) will be attached to the band. When bent to move in the opposite direction relative to the bottom of the channel (21), the band channel (21) opens. Therefore, when the band (B) is pulled out from one end of the guide frame (2) after being accommodated in the band passage (21), the end edge of the closing plate part (41) is The parts are bent and sequentially pulled out from the band passageway (21). In addition, since the flaps (4) (4) are arranged throughout the area where the band passage (21) is formed, when the unit blocks (2a) (2a) are connected, the flaps (4) (4) will also be continuous. In addition, in order to facilitate the escape of the band (B) from the association part of the flaps (4) (4) that are continuous in the axial direction and the bending of the flaps, the corner part of the closing plate part (41) is formed into an arc shape. .

Next, the other unit block (2b), as shown in FIG. 1, has a connecting cylindrical part (31) at one end of the main body part (3), which has an arc shape of a quarter circle as a whole. In addition to protruding in the axial direction, a connecting hole (32) is formed at the other end, and the axes of the connecting cylinder part (31) and the connecting hole (32) are both aligned with the arcuate center of the main body (3). The configuration is such that the line coincides with the tangent line of the edge of the axis. Moreover, the connecting cylinder part (31)
is configured to match the shaft portion (22) of the unit block (2a), and the inner surface of the other connecting hole portion (32) is configured to match the fitting hole portion (23), and the connecting cylinder A tongue piece (36) similar to the tongue piece (27) is formed in the portion (31), and the unit block (2a) is formed on the inner surface of the connecting hole portion (32).
An engagement recess (34) is formed at a location that matches the engagement protrusion (28) formed on the tongue piece (27). A bent band passage (33) without a flap (4) on the inner circumferential side
is formed. As mentioned above, this unit block (2
When the shaft part (22) of the unit block (2a) is fitted into the connecting hole part (32) of b) and the connecting cylinder part (31) is fitted into the fitting hole part (23) of the unit block (2a), There are unit blocks (2b) at both ends with the unit block (2b) at the center.
a) (2a) are connected and these unit blocks (2a)
The extension lines of the axes in (2a) are orthogonal to each other.

In order to form the guide frame (2) on the upper surface of the fuselage (1) using the unit blocks (2a) and (2b), as shown in FIG. The unit block (2b
) are connected, and the upper end unit blocks (2b) (2b) are connected to each other in the horizontal direction to form a horizontal side (H). ) unit blocks (2a) located at both ends of (2a)
When the guide frame (2) is fitted into the connecting cylinder part (31) or the connecting hole part (32) of the opposing unit block (2b), a guide frame (2) with a unit block (2b) located at each corner part is completed. Then, if the unit blocks (2b) (2b) located at the ends of this guide frame (2) are screwed into predetermined positions on the top surface of the fuselage (1), this guide frame (2) will become the fuselage (1). is fixed to the top surface of the In this state, as shown in FIG. 7, the tangents of the edges of the bent band passages (33) of the unit blocks (2b) located at both ends of the guide frame (2) are in the horizontal direction,
When the fixed position of this unit block (2b) is set to a predetermined position, the band passage (51) and the band passage (52) following the welding and cutting mechanism part (12) in the fuselage (1) and the unit block (2b) ( The bent band passage (33) of 2b) is continuous. The unit block (2b) (2b)
In order to fix the main body part (3), it is also possible to use a method in which the constituent wall of the main body part (3) is screwed as it is to the constituent member (F) in the fuselage (1), but as shown in FIG. ) by screwing the fixing screw (M) into the metal fitting (35) inserted into the hollow part, and pressing the metal fitting (35) against the inner surface of the hollow part, thereby fixing the entire unit block (2b). Aircraft (1
) may be attached to the component (F). In this case, concentrated loads will be less likely to act on the installation location,
Even if the unit block (2b) is made of synthetic resin, its mounting strength is improved.

Furthermore, each unit block (2a) is provided with a partition wall at the center in the longitudinal direction, and this partition wall has a circular through hole (
N) is formed. Therefore, the unit blocks (2a) (2a) constituting the vertical sides (L) (L) and the horizontal sides (H)
In the connecting body, the groups of through holes (N) (N) are continuous in the axial direction, so by press-fitting a core material such as a metal pipe into this part, the rigidity of each of the connecting bodies is improved. It can be done. In the guide frame (2) shown in Figure 6, the horizontal side (H) is 4
It has a structure in which 3 unit blocks (2a) (2a) are connected, and the upright side (L) is 3 unit blocks (2a) (
2a) are connected, but by changing the number of unit blocks (2a) used, the size of the guide frame (2) can be changed. In this example, since the length of the main cylinder part (24) of the unit block (2a) is 10 cm, if the number of unit blocks (2a) used is increased, the vertical side (L) or horizontal side of each unit block (2a) is increased. The length of side (H) will be extended by 10 cm. In the above embodiment, the unit block (2b) is shared, but the unit blocks located at the four corners may be configured separately. In particular, the unit block located at the lower end may have a different form from the others in order to simplify attachment to the fuselage (1). Regarding the relationship between the flap (4) and the unit block (2a), as shown in FIG.
44) One end is extended to form a closing plate part (41), and an engaging part is formed at and near the other end, and these engaging parts are formed on the outside of the rib (R) of the main body part (24). Convex part (45
) or may be configured to engage with the engagement recess (46). In this way, by providing the C-shaped cross section (44) and the bent cross section like the bent cross section (42) described above, the closing plate (41) can be easily rocked. Can be done. Further, in the above embodiment, the end portions of both side wall portions of the band passage (21) on the inlet side in the band feeding direction are sloped surfaces that widen toward the upstream side, and the inside of this band passage (21) is The tip of the band fed into the band passage (
There is no need to worry about it getting caught on the edge of 21).

[Brief explanation of the drawing]

FIG. 1: Unit blocks (2a) (2b) of the embodiment of the present invention
Cross-sectional view of the connected state

[Figure 2] Front view of unit block (2a)

[Fig. 3] Plan view of unit block (2a)

[Figure 4] Unit block (2a)
bottom view of

[Figure 5] Perspective view of flap (4)

[Fig. 6] Front view of the guide frame (2) in use according to the embodiment of the present invention.

[Fig. 7] An explanatory diagram of an example of attaching the guide frame (2) to the fuselage (1) according to the embodiment of the present invention.

[Fig. 8] Cross-sectional view of another example of the flap (4) and its attachment structure

[Figure 9] Front view of conventional packaging machine

[Fig. 10] Cross-sectional view of the guide frame (2) of the packing machine

[Explanation of sign]

(1)...Aircraft (2)...Guidance frame (2a)...Unit block (2b)...Unit block (21)...Band passage (4)...Flap (22)...Shaft part (23)...Fitting hole part

Claims (1)

[Claims] Claim 1: Feed the band (B) into an inverted U-shaped guide frame (2) that stands upright from the outside of the body (1) on which the object to be packaged (K) is placed or in contact with it, and after the feeding is completed. While holding the tip of the band (B), pull back the band (B) to wrap the band (B) around the item to be packed (K), and then weld the overlapping parts of the band (B) and remove the required parts. In the guide frame of the packing machine designed for cutting, insert the guide frame (2
) is composed of a plurality of unit blocks (2a) (2a) of a certain length constituting the linear part and a plurality of unit blocks (2b) (2b) constituting the corner part, and each of the unit blocks (2a) has a structure including a band passage (21) formed along the length direction and a flap (4) that closes the open part of this band passage (21), and the axis of this unit block (2a) One of the ends in the direction has a shaft part (2
2), and the other side is provided with a fitting hole (23) into which the shaft (22) is tightly fitted, and the shaft (22) or Fitting hole (2
3) is provided with a fitting connecting means that connects the unit blocks (2a) and (2a) in a fitted state, and an arcuate band passage that is continuous with the band passage (21), and the unit blocks (2a) and (2a)
2b) A band passage (21
) is continuous and forms a guide frame (2) that is U-shaped as a whole.