JPH01267113A - Compact packaging machine - Google Patents

Abstract

PURPOSE:To obtain a compact, easy to use and inexpensive packaging machine, by raising a lever to lift a swing arm, pushing forward an object to be packaged from this side on a tape which is extended on a table part, winding the tape on the object to be packaged in a ring state, lowering the lever and performing a fusion cutting at the tape overlapped part. CONSTITUTION:Under a condition in which a swing arm 3 is lifted, a tape T from a tape reel 5 is made to go through a tape guide 6, tape feeding part 8 and a tape sending out hole on the front surface of a machine frame 1. An object to be packaged is pushed forward from this end of a table 4 and set on the step part of a stopper 70. By doing this, the tape T is wound around the object to be packaged from the bottom surface side to the front side in a U-shaped state. When a control lever 11 is pressed down, the tape T is approximately perfectly wound around the outer periphery of the object to be packaged. When the control lever 11 is pressed down further, the overlapped part of the tape T is fusion-cut by a heating trowel 50a. At the same time, a cooling part 55 cools instantly the overlapped part of the tape T right after the cutting. By this cooling, a connecting after the fusion-cutting is favorably performed.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a small-sized packing machine that can easily pack take-out lunch boxes, confectionery boxes, and various other items.

<Prior Art> Conventionally, this type of packaging machine has been proposed with various structures, but a relatively small one, for example, has a tape feeding arm that moves around the article and wraps the product. There is a device that wraps tape around objects.

<Problems to be Solved by the Invention> However, although devices with such conventional structures are small, they are still quite large due to the way the arm rotates.
Depending on the place of use, it may be difficult to secure installation space, and there may be limits to the handling of small items.The biggest problem is that they are expensive.

The present invention has been made in view of these conventional problems, and its purpose is to provide a packaging machine that is small, easy to use, and can be manufactured at low cost.

Means for Solving the Problems> The small-sized packaging machine of the present invention that achieves the above object has a free end vertically movable inside the machine frame, and a lever for transmitting driving force to other parts. A lever, a swinging arm that is swingably installed on the packing table on the top surface of the machine frame and swings as the lever moves up and down, and a swinging arm that is attached to a part of the machine body and wrapped with packing tape. a tape reel attached to the free end of the oscillating arm and supplying the tape onto the table; a tape hole opened in the table for passing the tape into the machine frame; a tape feeding section that is installed in a frame and sends out a predetermined amount of the tape that has passed through the tape hole when the lever is raised; and a tape feeding section that is opened in the table and stretched between the tape guide and the tape feeding section. A tape viewing window is occupied by the overlapping part of the annular tape that is formed when the package is moved from the front of the table to the tape, and a tape viewing window is installed inside the machine frame so as to be able to move up and down, and when the lever lever is lowered. , a small packaging machine comprising a heating section that advances into the tape overlapping portion of the tape viewing window to melt and cut the tape, and a driving section for the lever lever.

<Function> In the case of this packing machine, the lever is raised to raise the oscillating arm, and in this state, the packaged item is pushed from the front onto the tape stretched on the table part, and the tape is wrapped around the packaged item in a circular shape. After this, when the lever is lowered, the heating section within the machine frame rises and melts and cuts the tape overlapping portion, so that the packaged item can be easily packed with tape.

<Embodiment> FIGS. 1 to 3 show an entire embodiment of a packaging machine according to the present invention.

In the figure, 1 is a machine frame, 2 is a lever for transmitting driving force to each component as described later, and 3 is a swinging arm that moves up and down on a table 4 for packing items on the top surface of the machine frame 1. ,5
is a tape reel wrapped with packing tape T, 6 is a tape guide attached to the tip of swing arm 3, 7 is machine frame L
tape T from the table 4 side.
8 is a tape feeding section that sends out a certain amount of tape T; 9 is a tape viewing window opened in table 4 of machine frame 1; 10 is a heating section that melts and cuts the tape T; Reference numeral 11 denotes an operating lever that is a driving part of the lever 1.

The lever lever 2 is located inside the machine frame 1, and one end thereof is pivoted to a shaft pin 12 on one side (rear side) of the bottom surface of the machine frame, and the operation lever 11 is fixed to the other free end side. has been done.

This lever 2 and the swing arm 3 are connected via a connecting lever 13. In this example, this connected lever 13 is made up of two U-shaped members 14, 15 connected together, one of which is connected to the horizontal portion 14a of the U-shaped member 14.
is positioned protruding from one side (rear side) of the machine frame table 4, and the swing arm 3 is fixed to a substantially central portion of this horizontal portion 14a. The left and right side portions 14b, 14b of this U-shaped member 14 extend inside the machine frame 1, and the tip ends of the left and right side portions 15b, 14b of the other U-shaped member 15.
It is fixed to the tip of 5b. These side parts 14b, 14
The portion b on the machine frame table 4 is pivoted to a support piece 17.17 erected on the upper surface of the machine frame 1 by a shaft pin 16.16. Further, a roller member 18 is fixed downward to the horizontal portion 15a of the U-shaped member 15, and a roller 19 that makes rolling contact with the upper surface side of the lever lever 2 is attached to the tip thereof. An elastic body 21.21, such as a coil spring, is attached between the horizontal portion 15a and the lever lever 2 via a penetrating bar 20 fixed directly to the lever lever 2. In addition, a penetrating bar 23 fixed directly to a part of the lever lever 2 is fixed to the bottom surface of the machine frame 1, and has a tip end side that is fixed to the bottom surface of the machine frame 1 to make a click operation in response to the vertical movement of the lever lever 2. A leaf spring 24 having a bent portion 24a is in contact with it.

Therefore, the state shown in FIG. 1 (the highest point of the operating lever 11,
When the operating lever 11 is pushed down from the position (held by the leaf spring 24), the lever lever 2 resists the pressing force of the temporary spring 24, and the free end side of the lever 2 is lowered around the shaft pin 12, and the roller 19 is The lever lever 2 escapes from the recess 22 on the upper surface and rolls downward, and at the same time, the free end side of the connecting lever 13 is pulled via the coil spring 21, 21, and this pulling causes the connecting lever 13 itself to pivot. Since it is rotated about the pin 16.16, the tip of the swing arm 3 is lowered. At this time, when the operating lever 11 is lowered by the first stroke S1 as shown in FIG. 1, the lower end of the tape guide 6 comes into contact with the machine frame table 4 as described later. From this state, if you pull up the operating lever 11,
The free end side of the lever lever 2 is pulled up against the pressing force of the leaf spring 24, and in conjunction with this, the tip of the oscillating arm 3 rises, achieving the state shown in FIG. 1 above. Note that the above-mentioned continuous lever 13, particularly the U-shaped member 14, may be constructed integrally with the oscillating arm 3.

The tape reel 5 is attached via the shaft 25 between the side portions 14b, 14b of the U-shaped member 14. In this case, in order to maintain appropriate friction between the reel 5 and the shaft 25, a friction material 26 such as a rubber tube is fitted into the inner surface of the reel hole as shown in FIG.

The Tape Guytro is as shown in FIG. 5, and can be moved up and down with respect to the fixing part 27 by means of a fixing part 27 fixed to the tip of the swinging arm 3, an elongated hole 28, and fixing screws 29 and 29. It consists of an attached U-shaped cover 30 and a tape return prevention means 31 built into the cover 30. This tape return prevention means 31 is for preventing the tape T supplied below the tape guidero from returning to the tape reel 5 side.
0, and in the free state, the tape pressure contact piece 33 is balanced so that a gap for the tape is formed on the tape running side, and the tape pressure contact piece 33 is installed so as to be vertically movable, and the lower end of the tape guidero is placed on the machine frame table 4. It consists of a stopper rod 34 whose protruding lower end is pushed up when it abuts. When this stopper rod 34 is pushed up, its upper end pushes up the free end side of the pressure contact piece 33, and the pressure contact piece 33
Since the upper end side 33a of the shaft attachment part is pressed against the fixing part 27, the tape T is pinched and prevented from returning. Further, a kind of tape clamping blade 35 is fixed to the back side of this tape guidero. This tape clamping blade 35, as shown in FIG.
This is for sandwiching the tape overlapping portion between it and the corresponding groove 36 on the table 4 side.

The positional relationship between the tape hole 7 and the tape slot window 9 is as shown in FIG. 6, and a tape return prevention means 37 as shown in FIG. 8 is provided inside the machine frame 1 of the tape hole 7. The tape sending section 8 described above is provided.

This tape return prevention means 37 is pivoted to the tape guide fixing part 38 by a frame-shaped tape guide fixing part 38 fixed directly below the tape hole and a shaft pin 39, and in a free state, the tape guide fixing part 38 is fixed to the tape guide fixing part 38, and in a free state, The lower end 40a is composed of a tape pressing piece 40 which is balanced so as to always press the wall surface of the tape guide fixing part 38. That is, in FIG. 8, the tape T is free to run downward, but is completely prevented from returning upward. In addition, the tape sending section 8
consists of two pressure rolls 41 and 42, and the lower pressure roll 41 is composed of two juxtaposed rolls 41 in this example.
a and 41b, and can freely rotate in forward and reverse directions, but as shown in FIG. 1, in the free state, it is spring biased clockwise by an elastic body 43 such as a coil spring. The clockwise rotation is regulated by a stopper pin 44 implanted on a part of the outer periphery of the roll 41 and a stopper 45 on the machine frame 1 side. Further, an engaging pin 46 is implanted on the opposite side of the pressure roll 41 from the stopper pin 44, and this engaging pin 46 is
When the lever 2 is raised, it engages with the hook member 47 attached to the lever 2 and is pushed up, causing the pressure roll 4
Turn 1 counterclockwise by the specified amount. On the other hand, the upper pressure roll 42 is a unidirectional rotating roll that rotates only clockwise in FIG. 8, and the lower pressure roll 41
If it rotates counterclockwise, it will follow and rotate counterclockwise.

Therefore, when the pressure roll 41 is rotated counterclockwise by a predetermined amount, the tape T is fed out by a predetermined amount (approximately 1 cm).

As shown in FIG.
It consists of a swinging frame 49, one end of which is pivotally attached to the bottom surface of the table of the machine frame 1 so as to be swingable, and a heater 50 fixed to the free end side of the swinging frame 49.
Power cord 51, power switch 52 on the front of machine frame 1, power supply installed inside machine frame 1? M11 circuit section 53, machine frame 1
Optimal power is supplied through a temperature control knob 54 on the front. When melting and cutting the tape T, the heating iron part 50a of the heater 50 is advanced into the tape viewing window 9, but in this example, when the heating part 10 is retracted, the cooling part 55 moves into the tape viewing window. 9, the two are connected by a link mechanism 56. The cooling unit 55 includes a swing frame 5 whose one end is pivotably attached to the bottom surface of the table of the machine frame 1 by a shaft pin 57.
8, and a cooling iron part 58a formed as a protrusion on the free end side of the swing frame 58. Further, the link mechanism 56 includes a connecting rod 61 whose approximately central portion is pivoted to the bottom surface of the machine frame 1 through a support piece 59 and a shaft pin 60, one end of the cough connecting rod 61, and the heating portion 10. a connecting rod 62 connected between the free end side of the swinging frame 49 of the cooling unit 55; and a connecting rod connected between the other end of the connecting rod 61 and the free end side of the swinging frame 58 of the cooling unit 55. 63, and in the free state, the shaft pin 57 of the cooling section 55,
An elastic body 65 such as a coil spring stretched between the shaft pins 64 of the rods 61 and 63 allows the cooling iron part 58a of the cooling unit 55 to always advance into the tape viewing window 9 as shown in FIG. A stance is taken.

On the other hand, a rotating roller 66 is pivotally attached to the opposite side (front side in FIG. 9) of the shaft pin 64 to which the elastic body 65 is attached, and this rotating roller 66 is connected to the operating lever as shown in FIG. 1
1 is further lowered from the first stroke S to the second stroke S2, it comes into contact with the engagement Fi 67 fixed to a part of the lever 2 and is pushed down together with the engagement plate 67, so that the connection The other end of the installation rod 6.1 (the left side in FIGS. 1 and 9) goes down, and the one end (the right side in FIGS. 1 and 9) goes up, and accordingly, the heating section 10 The free end side of the oscillating frame 49 rises, and the heating iron part 50
A is advanced into the tape viewing window 9 to melt and cut the overlapping portion of the tape T.

In addition, 70 is for positioning the packaged item G during packaging.
Part of the stopper installed on the front side of the machine frame table 4,
71 is a tape guide cover installed on the swinging arm 3; 72 is a tape guide that guides the tape T from the tape hole 7 to the delivery section 8; and 73 is a tape feeder in front of the machine frame from which the used tape T is discharged. The hole 74 is a stopper 75 that regulates the lowest end of the lever lever 2 installed on the bottom of the machine frame 1.
... are the legs fixed to the four corners of the bottom of the machine frame, 76 is the machine frame 1
This is the side plate.

Next, the packing process using the packing machine of the present invention will be explained with reference to FIGS. 10 (8) to (E).

First, as shown in FIG. 10(A), the swing arm 3
In the raised state (the highest point of the operating lever 11 in FIG. 1), move the tape T from the tape reel 5 to the tape guide 6,
The tape is passed through the tape feeding section 8 and the tape feeding hole 73 on the front of the machine frame 1.

With the tape T stretched, the package G is pushed forward from the front of the table 4 and set on the stepped portion of the stopper part 70, as shown in FIG. 10(B). This results in
The tape T is wound in a U-shape from the bottom side to the front side of the packaged item G.

Next, from this state, the operating lever 11 is pushed down by the first stroke SI shown in FIG. Then, the internal lever 2 resists the elastic force of the leaf spring 24,
Following this, the oscillating arm 3 lowers. As the oscillating arm 3 descends, the lower end of the tape guide 6 comes into contact with the machine frame table 4, as shown in Figure 1O (C), and the tape T is almost completely wrapped around the outer circumference of the packaged item G. It will be destroyed. Due to this contact, the stopper rod 34 is pushed up, so that the tape return prevention means 31 works, and the upper tape T wound around the packaged object G is completely prevented from returning. Furthermore, since the tape return prevention means 37 works by the tape pressure contact piece 40 on the tape delivery section 8 side, the return of the lower tape T wound around the packaged item G is also completely prevented. Therefore, the tape T is adhered to the package G almost perfectly. This close contact is achieved more completely by the tape clamping blades 35 of the six tape guides and the grooves 36 on the table 4 side, as described above. The tightness with which the tape is fastened to the package G can be adjusted by moving the cover 30 up and down using the length 28 and fixing screws 29 and 29. In other words, cover 30
If you raise it upward, the tape will be tightened more firmly.
On the other hand, if it is lowered, it becomes looser and can accommodate soft packaging items G.

From this contact state of the tape guide 6, the operation lever 11 is further moved for a second stroke S2 against the elastic force of the coil spring 21, 21 stretched between it and the continuous lever 13.
When pushed down to the side, the engagement plate 67 of the lever lever 2 rolls into contact with the rotating roller 66 of the link mechanism 56 as described above, and the first
In order to lower the left end of the connecting rod 61 in FIG. At the same time as the tape is retracted from the tape viewing window 9, the heating iron part 50a of the heating unit 1O advances into the tape viewing window 9.

The overlapping portion of the tape T is melted and cut by the heating trowel portion 50a. At this time, the temperature of the heating section IO (approximately 180'C to 250C) is controlled according to the tape T used.

After this, if you release or loosen the operating lever 11,
Due to the restoring force of the coil springs 21, 21, the operating lever 11 automatically returns to the lower end of the first stroke Sl. By this automatic return, as shown in FIG. 10(E), the heating section 10 is retracted from the tape viewing window 9 via the link mechanism 56, and at the same time, the cooling iron section 58 of the cooling section 55 is retracted.
a advances into the tape viewing window 9 and instantaneously cools the overlapping portion of the tape T immediately after cutting. This cooling allows for good connection after melt cutting.

As a result, the packed object G is obtained on the machine frame table 4.

After the operating lever 11 automatically returns to the lower end of the first stroke SI, when the operating lever 11 is further raised to the upper end of the first stroke S (the highest point of the operating lever 11), the lever 2 moves the tape feeding section 8 works, Figure 10 (I
As shown in E), the continuous tape T, which is connected at the fused cut portions, is fed out by a predetermined amount. Of course, the fused and cut portions of the tape T on the package G side are also connected to each other.

By moving the operating lever 11 to the highest point, the internal lever 2 is raised against the elastic force of the leaf spring 24,
Following this, the swing arm 3 is also raised.

As a result, a new tape T without a connection part is supplied from the tape reel 5, stretched between the tape guide 6 and the machine frame table 4, and the next packing arrangement is taken. At this time, from the tape sending side 8, the tape return prevention means 37 prevents
The tape T is never fed backwards.

In the above embodiment, the tip of the heating iron part 50a of the heating part 10 is formed into a chevron shape, but in order to increase the number of fusions after melt cutting and adjust the adhesive strength, for example, as shown in FIG. As shown, it is preferable to provide a thin blade portion 50b at the center of the tip of the heater 50, and to fuse the left and right flat portions.

FIG. 12 shows the whole of another embodiment of the packaging machine according to the present invention.

In the case of this packaging machine, an electric motor 80 is installed on the bottom of the machine frame 1 instead of the operating lever 11 as the drive unit for the lever lever 2.
This is a case where this electric motor 80 is connected to the lever lever 2, for example, via an eccentric rod 82 eccentrically attached to a rotary pulley 81, and the vertical movement of the lever lever 2 is automated.

In addition, in the embodiment of the present invention, the swing arm 3 is constructed from one long plate, but the present invention is not limited to this. Further, although the tape reel 5 is installed on the continuous lever 13, the present invention is not limited thereto.

<Effects of the Invention> As is clear from the above description, according to the present invention, the following excellent effects can be obtained.

(1) A packaging machine that is small, easy to use, and can be manufactured at low cost can be provided.

(2) The tape allows the packaged items to be packed neatly without any gaps.

(3) The amount of tape delivered after melt cutting is about 1 cm, and since the cut portions are glued together, there is almost no waste of tape, which is economical.

(4) Since the swinging arm only moves up and down rather than pivoting, the installation space may be small.

(5) Regardless of the type of packaged items, it can be used to handle hard items, soft items, and even fairly small items.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of a small packaging machine according to the present invention.
Partially cutaway side view with the operating lever raised to its highest point,
Figure 2 is a plan view of Figure 1, Figure 3 is a front view of Figure 1, Figure 4 is a side view of the tape reel, Figure 5 is a partial longitudinal sectional side view of the tape guide, and Figure 6 is the machine frame. tape hole on the table,
FIG. 7 is a partial perspective view showing the tape viewing window; FIG. 7 is a partial vertical side view showing how the tape is wrapped around the package; FIG. 8 is a partial vertical side view showing the tape delivery section; FIG. 9 is a partial vertical sectional side view showing the heating section and the cooling section, FIG. 10(A),
(B), (C), (D), and (E) are packing process diagrams, FIG. 11 is a schematic diagram showing another example of a heater in the heating section, and FIG. 12 is a diagram of a small packaging machine according to the present invention. FIG. 7 is a partially cutaway side view showing another embodiment. In the figure, l... Machine frame, 2... Lever, 3... Swing arm, 4... Table, 5... Tape reel, 6... Tape guide, 7... Tape. Hole, 8... Tape feeding section, 9... Tape viewing window, 10... Heating section, 11... Drive section, 80... Drive section, Fig. 10 (E) Fig. 11

Claims (3)

[Claims] (1) The free end side is installed inside the machine frame so as to be able to move up and down, and a lever is installed for transmitting driving force to other parts, and the table for packaging items on the top surface of the machine frame is installed so as to be swingable; a swinging arm that swings by the vertical movement of the lever;
a tape reel attached to a part of the machine body and wrapped with packing tape; a tape guide attached to the free end side of the oscillating arm to supply the tape onto the table; A tape hole through which the tape passes through the machine frame; a tape delivery section disposed within the machine frame through which a predetermined amount of the tape passing through the tape hole is sent out when the lever is raised; and an opening in the table. , a tape viewing window occupied by an overlapping part of the annular tape that is formed when a package is moved from the front of the table and rolled into the tape stretched between the tape guide and the tape delivery section; A small package characterized by comprising: a heating section that is installed to be able to move up and down, and that when the lever lever is lowered, advances into the overlapped part of the tape of the tape viewing window to melt and cut it; and a drive section for the lever lever. Machine. (2) The compact packaging machine according to claim 1, wherein the drive section comprises a manually operated lever connected to a free end side of a lever. (3) The compact packaging machine according to claim 1, wherein the drive section comprises an electric motor connected to a part of a lever.