JPH10157703A - Three-side seal film packaging machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a frame which is easy to install a longitudinal sealer, a lateral sealer, a center conveyer or the like and which is inexpensive to manufacture. SOLUTION: Longitudinal and lateral beams are placed in parallel and the beams are connected by a plurality of T-shaped joints 15 to form a hexahedral frame structure so that is can be assembled and disassembled, wherein a longitudinal sealer 4 is mounted across two upper longitudinal beams 11A, 11B which have been placed in parallel while a lateral sealer 5 is longitudinally movably mounted across the two longitudinal beams which have been placed in parallel. In addition, an electric motor driving part 6 for transmitting motive power to the longitudinal sealer and the lateral sealer is placed on two lower longitudinal beams 12A, 12B. Further a center conveyer 3 is placed on the plurality of lateral beams attached across the two longitudinal beams so that it can stretch in a longitudinal direction in connection with the lateral sealer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-side seal film packaging machine, and more particularly to a three-side seal film packaging machine which is easy to assemble.

[0002]

2. Description of the Related Art Conventionally, a packaged film is wrapped with an object to be packaged to weld a vertical sealer and a horizontal sealer (end sealer).
There is known a film packaging machine which forms a three-sided seal wrapper having a predetermined width in accordance with the longitudinal dimension of an article to be packaged by fusing. FIG. 10 shows an example of such a film packaging machine.
Has been proposed (Japanese Patent Application No. 8-109537). In this three-side seal film packaging machine 100, a packaged object 200 is wrapped in a packaging film 102 by a former 101, transported by a catch roller 103, and welded by a vertical sealer 104 and melted by a horizontal sealer 105a, 105b. It forms a long three-sided seal zipper. The three-side seal film packaging machine 100 includes a table 106 for assisting the placing of the packaged object 200 on the former 101, and a vertical position adjustment for integrally adjusting vertical positions of the catch roller 103 and the vertical sealer 104. An operation handle 107 for operating a mechanism (not shown) is provided. Also, a center conveyor 108 for assisting the transport of the packaged object 200 wrapped in the packaging film 102 between the former 101 and the horizontal sealers 105a and 105b, and a three-side seal wrapper (not shown) in which the packaged 200 is packaged. ) Is carried out. Furthermore, horizontal sealer 10
A horizontal sealer moving servomotor Ma for moving the vertical sealers 5a and 105b in the vertical direction (arrow X);
b, a horizontal sealer driving motor Mc for moving the motor b in the vertical direction (arrow Z), a catch roller 103 and a vertical sealer 104.
And a vertical sealer drive servomotor (not shown) for driving the motor.

[0003] In the three-side seal film packaging machine 100 configured as above, an operator (operator) removes the packaging film 102 from the former 101 to the catch roller 10.
3. The user guides the vertical sealer 104 in advance, places the article 200 at a predetermined position on the former 101 from the table 106, and starts three-side seal packaging. When the operator presses the packaging start button 110 in this state, the catch roller 103 and the vertical sealer 104 are driven via the vertical sealer driving servomotor.
Since the center conveyor 108 is driven, the packaged object 200 is sent forward by the catch roller 103, and the packaging film 102 that covers the packaged object 200 is welded by the vertical sealer 104. The center conveyor 1
08 is a packaged object 2 wrapped by the packaging film 102.
00 is assisted.

After welding with the vertical sealer 104, the vertical sealer 1
04 stops, and the horizontal sealers 105a and 105b are driven via the horizontal sealer moving servomotor Ma. At this time, the horizontal sealers 105a and 105b are moved in the vertical direction (arrow X) by a movement amount corresponding to the length of the packaged object 200. After the horizontal sealers 105a and 105b move in the vertical direction (arrow X), the horizontal sealers 105a and 105b are melted and blown at a position exactly between the wrappers. By fusing and fusing the horizontal sealers 105a and 105b, a three-sided seal wrapper having a predetermined wrapper length corresponding to the vertical dimension of the packaged object 200 is formed.
9 carried out.

[0005]

However, such a catch roller 103, a vertical sealer 104, horizontal sealers 105a and 105b, a horizontal sealer moving servomotor Ma,
Assembling of the horizontal sealer drive motor Mc and the vertical sealer drive servomotor to the frame 111 is performed by using the frame 11
1 had to be fixed at predetermined positions by bolts and the like, and there was a problem that extremely complicated work was forced. Further, in order to manufacture the frame 111, a steel plate or the like must be assembled by welding, and a plurality of bolt holes for fixing the catch roller 103, the vertical sealer 104, and the like are formed at predetermined positions of the frame 111. I had to. Further, in such a frame 111, since the mounting position of each component is determined,
There was a problem that the transport direction of 0 was limited to a fixed direction.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and a three-way seal having a frame in which a vertical sealer, a horizontal sealer, a center conveyor, and the like can be easily installed and whose manufacturing cost is low. It is an object to provide a film packaging machine.

[0007]

In order to achieve the above object, a three-way seal film packaging machine according to the present invention wraps a packaged product in a packaging film by a former, conveys it on a center conveyor, and welds and seals a vertical sealer. The present invention relates to a three-side seal film packaging machine for forming a three-side seal wrapper having a predetermined wrapper length by fusing and fusing a horizontal sealer.

[0008] As a first means, two vertical beams are arranged in parallel, a vertical sealer is placed over two parallel vertical beams, and a horizontal sealer is arranged in parallel. It is placed movably in the vertical direction over the vertical beam of the book. As a second means, the vertical and horizontal beams are arranged in parallel, the beams are connected by a T-shaped joint to form a hexahedral frame structure so as to be disassembled and disassembled, and two vertical beams are arranged in parallel with the vertical sealer. The horizontal sealer is mounted on two vertical beams arranged in parallel and movably in the vertical direction.

[0009] As a third means, two pairs of vertical beams are arranged in a pair at upper and lower portions in parallel, and a vertical sealer is placed over the two upper vertical beams arranged in parallel. Then, the horizontal sealer is placed movably in the vertical direction across the upper two vertical beams arranged in parallel, and the drive units for transmitting power to the vertical sealer and the horizontal sealer are provided in the lower two lower beams. It is installed on a vertical beam.

As a fourth means, two vertical beams are arranged in parallel, a vertical sealer is placed over the two vertical beams arranged in parallel, and a horizontal sealer is arranged in parallel. The center conveyor is placed movably in the vertical direction over the two vertical beams, and the center conveyor is placed on two horizontal beams arranged in parallel. It is installed so that it can expand and contract in the vertical direction in conjunction with it.

As a fifth means, there is provided a frame in which two vertical beams are arranged in parallel, a vertical sealer mounting table provided with a vertical sealer and mounted on the two vertical beams of the frame. , Two horizontal sealers are provided and the horizontal sealers are arranged in parallel.
And a horizontal sealer mounting table which is movably mounted in the vertical direction over the vertical beam of the book. As a sixth means, as a drive unit for transmitting power to the vertical sealer and the horizontal sealer, an electric motor capable of rotating forward and reverse, and transmitting power to one of the vertical sealer and the horizontal sealer when the electric motor is rotated forward. And a second one-way clutch that transmits power to the other of the vertical sealer and the horizontal sealer when the electric motor is rotated in the reverse direction.

As a seventh means, as a drive unit for transmitting power to the vertical sealer and the horizontal sealer, an electric motor capable of rotating forward and reverse, and to the one of the vertical sealer and the horizontal sealer when the electric motor is rotated forward. A first one-way clutch for transmitting power, a second one-way clutch for transmitting power to the other of the vertical sealer and the horizontal sealer when the electric motor is reversely rotated, and a forward and reverse rotation of the electric motor for forward and reverse rotation of the electric motor. And a sequence controller that switches according to the drive timing of the sealer.

Eighth means is that the horizontal sealer comprises a pair of upper and lower sealers pivotally connected at a pivot point, and a crank mechanism for driving the pair of upper and lower sealers to move away from each other, and a horizontal sealer. And a link connecting mechanism for rotating and driving the crank mechanism in response to the vertical movement of the horizontal sealer from the drive unit for transmitting power to the vehicle. The horizontal sealer configured as described above adjusts the height of the crank of the crank mechanism to set the horizontal sealer height of the horizontal sealer to half the height of the packaged object according to the height of the packaged object. May be provided.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a three-side seal film packaging machine according to the present invention will be described below with reference to the drawings. As shown in FIG. 1, a horizontal inverted pillow three-sided seal film packaging machine according to an embodiment of the present invention wraps a packaged product 23 in a packaging film 24 by a former 2 and conveys it on a center conveyor 3 to form a vertical sealer. 4 and the fusing of the horizontal sealer 5 to form a three-side seal wrapper 23 having a predetermined wrapper length.
a. The vertical sealer 4, the horizontal sealer 5, and the center conveyor 3 performing such a packaging operation are driven by the electric motor drive unit 6.

The frame 10 on which the vertical sealer 4, the horizontal sealer 5, and the center conveyor 3 for forming the three-side seal wrapper 23a having the predetermined wrapper length are installed has a hexahedral frame structure formed in a trapezoidal shape. As shown in FIG. 2, FIG. 3, FIG. 4, and FIG. 5, the upper two vertical beams 11A and 11B ( Hereinafter, "upper vertical beam 11A, 1
1B ". ), And two vertical beams 12A, 12B (hereinafter, referred to as “the vertical motors”) that are arranged in parallel below the upper vertical beams 11A, 11B to install the electric motor drive unit 6 that transmits power to the vertical sealer 4 and the horizontal sealer 5. Lower vertical beam 12A,
12B ". ) And four column beams 13A, 13B, 13C, 13D that form a hexahedron with the upper longitudinal beams 11A, 11B and the lower longitudinal beams 12A, 12B.
Between the column beams 13A and 13B and the column beam 13C,
Two transverse beams 14A, 14B connected between 13D
And a plurality of T-shaped joints 15 connecting between the beams
Consisting of For each beam, a cylindrical tube made of, for example, stainless steel is used.

The vertical sealer 4 includes upper vertical beams 11A and 11B.
A vertical sealer mounting table 41 is provided for mounting on the upper side. The vertical sealer mounting table 41 has an upper vertical beam 11A,
Two guide members 4 formed in a shape that can be fitted to 11B
1a, 41b and a vertical sealer base 41c fixed between the guide members 41a, 41b. By tightening bolts (not shown) screwed to the guide members 41a and 41b of the vertical sealer mounting table 41, the vertical sealer 4
Are fixed on the upper vertical beams 11A and 11B.

As shown in FIG. 6, the vertical sealer 4 includes a pair of sealers 4a and 4b, and the pair of sealers 4a and 4b is brought into contact with the pair of sealers 4a and 4b. There is provided a gear mechanism 42 for rotating and driving the gears 4a and 4b so as not to slip, and a coupling mechanism 43 for rotating and driving the gear mechanism 42 by the power from the electric motor drive unit 6 transmitting power to the vertical sealer 4. . The gear mechanism 42 is a bevel gear 42a fixed to the driven shaft 43l of the coupling mechanism 43.
And a bevel gear 42b meshing with the bevel gear 42a to rotate the sealer portion 4a, and a gear 42 fixed to a sealer shaft 42c to which the bevel gear 42b and the sealer portion 4a are fixed.
d and a gear 42f meshed with the gear 42d and fixed to a sealer shaft 42e to which the sealer portion 4b is fixed.
The coupling mechanism 43 supplies the power from the electric motor driving unit 6 to the transmission 43a → the V-belt 43b → the transmission 43c → the drive shaft 43d.
→ Timing pulley 43e → Timing belt 43f →
The timing pulley 43g → the connecting shaft 43h → the timing pulley 43i → the timing belt 43j is transmitted to the timing pulley 43k fixed to the driven shaft 431 for rotating the bevel gear 42a. Thereby, the vertical sealer 4 can be driven by the power from the electric motor drive unit 6.

Further, a vertical position adjusting mechanism 44 for integrally adjusting the vertical position of the vertical sealer 4 is provided (FIG. 4). As shown in FIG. 1, FIG. 2, and FIG. 3, the horizontal sealer 5 straddles the upper vertical beams 11A and 11B so as to be reciprocally movable in the vertical direction (the transport direction of the packaged object 23 (arrow X)). A horizontal sealer mounting table 51 is provided for mounting.
Similar to the vertical sealer mounting table 41, the horizontal sealer mounting table 51 has two guide members 51a and 51b formed in shapes that can be fitted to the upper vertical beams 11A and 11B, and the guide members 51a and 51b.
And a horizontal sealer base 51b fixed between the bases 51b.
The horizontal sealer 5 is fixed on the upper vertical beams 11A and 11B by tightening bolts (not shown) screwed to the guide members 51a and 51b of the horizontal sealer mounting table 51.

As shown in FIGS. 6 and 7, a pair of upper and lower sealers 5 pivotally connected at a pivot point O are provided.
a, 5b, and a pair of upper and lower sealer portions 5a, 5b
Mechanism 52 for driving the motors so as to move away from each other
And a link for rotating and driving the crank mechanism 52 in response to the movement of the horizontal sealer 5 in the vertical direction (the transport direction of the packaged object 23 (arrow X)) from the electric motor drive unit 6 that transmits power to the horizontal sealer 5. And a connection mechanism 53.

The pair of upper and lower sealers 5a and 5b are pivotally attached to a horizontal sealer shaft 55 (pivot point O) which is supported by a bearing 54 projecting from the horizontal sealer base 51b of the horizontal sealer mounting table 51. Have been. The crank mechanism 52 includes the link connecting mechanism 5
3, a timing pulley 52a to which motive power from the electric motor driving unit 6 is transmitted, and a timing pulley 52a.
a is fixed, and the crankshaft 5
The cranks 52c, 52d, and 5 move the pair of upper and lower sealers 5a, 5b away from each other by the rotational movement of 2b.
2c, 52e, and 52f. The height of the crank of the crank mechanism 52 is adjusted by a horizontal sealer height position adjusting mechanism 56 described later. Therefore, when the crankshaft 52b rotates, the cranks 52c and 52d reciprocate the upper sealer portion 5a and the cranks 52c, 52e and 52f reciprocate the lower sealer portion 5b so as to approach and separate from each other about the pivot point O. .

The link connecting mechanism 53 uses the power from the electric motor driving section 6 to drive the timing pulley 53a → the timing belt 53b → the timing pulley 53c → the connecting shaft 53e →
Timing pulley 53f → cranks 52c, 52d and 52c, 52e,
2f is transmitted to a timing pulley 52a fixed to a crankshaft 52b that reciprocates. The timing pulley 53a is provided in the electric motor driving unit 6, the timing pulleys 53a and 53c are connected by a link 53A, and the timing pulleys 53f and 52a are connected by a link 53.
B (FIG. 2). The timing belt 53b is wound around the timing pulleys 53a and 53c, and the timing belt 53g is
Wrap between 3f and 52a.

Since the links 53A and 53B expand and contract by moving the horizontal sealer 5 in the vertical direction (the direction of transport of the packaged object 23 (arrow X)), the power from the electric motor drive unit 6 is supplied to the horizontal sealer. 5 can be transmitted.
Further, the horizontal sealer 5 adjusts the height of the crank of the crank mechanism 52 and adjusts the horizontal sealer height of the horizontal sealer 5 to half the height of the packaged object 23 according to the height of the packaged object 23. The horizontal sealer height position adjusting mechanism 56 is provided. This horizontal sealer height position adjusting mechanism 56 has one end mounted on the lower projecting portion of the horizontal sealer base 51b of the horizontal sealer mounting table 51 and a vertical adjusting arm 56a, and the other end of the vertical adjusting arm 56a. A vertical adjusting shaft 56b, a bevel gear 56c fixed to a predetermined portion of the vertical adjusting shaft 56b, and a bevel gear 56c.
A vertical adjusting screw 56e having a fixed bevel gear 56d fixed thereto, and guide members 51a, 51 of the horizontal sealer mounting table 51.
a vertical adjustment block 56f fixed to the lower projecting portion of the lower sealer b to guide the vertical adjustment screw 56e so as to be able to contact the lower portion of the lower sealer portion 5b; and a vertical adjustment screw 56e fixed to one end of the vertical adjustment shaft 56b. Up and down adjustment handle 56g
And Note that a crankshaft 52b is journaled between one end and the other end of the vertical adjustment arm 56a.

Therefore, by rotating the vertical adjustment handle 56g, the horizontal sealer height of the horizontal sealer 5 is positioned at half the height of the packaged object 23 in accordance with the height of the packaged object 23. be able to. As shown in FIG. 8, the center conveyor 3 includes a front end belt roller 31a, a rear end belt roller 31b, and a conveyor belt driving roller 31.
c, moving belt roller 31d and center belt 31
e.

The front end belt roller 31a is
Are fixed rotatably to a mounting bracket 7 (FIGS. 3 and 4) fixed to one end of the upper vertical beams 11A and 11B. The rear end belt roller 31b is a moving opening that is guided in the vertical direction (the transport direction of the packaged object 23 (arrow X)) by a pair of center belt support arms 31f fixed to the horizontal sealer base 51b of the horizontal sealer mounting table 51. It is rotatably fixed to one end of the frame 31g. Conveyor belt drive roller 3
1c is rotatably fixed to a predetermined position of the upper vertical beams 11A and 11B of the frame 10. The moving belt roller 31d is rotatably fixed to the other end of the moving opening frame 31g. Further, the other end of the movable opening frame 31g is guided in the vertical direction (the transport direction of the packaged object 23 (arrow X)) by a guide frame 31h provided between the upper vertical beams 11A and 11B of the frame 10. The vertical guide roller 31i and the horizontal guide roller 31j are rotatably fixed.

A center belt 31e is wound around the front end belt roller 31a, the rear end belt roller 31b, the conveyor belt driving roller 31c, and the moving belt roller 31d so that the article 23 can be transported. At this time, even if the horizontal sealer mounting table 51 moves in the vertical direction (the conveying direction of the packaged object 23 (arrow X)), the moving belt roller 31d does not loosen the center belt 31e.
Only the center belt 31e is wound in the opposite direction.

The center conveyor 3 constructed as described above
Is driven by the power from the electric motor drive unit 6. That is, the timing belt 31k (FIG. 6) is provided between the timing pulley 43m fixed to the drive shaft 43d of the coupling mechanism 43 of the vertical sealer 4 and the timing pulley (not shown) fixed to the conveyor belt drive roller 31c. The center belt 31e moves in the transport direction of the packaged object 23 (arrow X) when the drive shaft 43d is rotated leftward because it is wound.

The center conveyor 3 is provided with
Are connected to the unloading conveyor 8 for unloading the packaged three-side seal wrapper 23a (FIGS. 1, 2, 3, and 5).
The center conveyor 3 and the unloading conveyor 8 are fixed to the crank shaft 52b of the crank mechanism 52 when the pair of upper and lower sealers 5a, 5b of the horizontal sealer 5 come into close contact with each other to fuse and blow the packaging film (FIG. 2). Opening cam 31l
The center conveyor 3 is separated from the unloading conveyor 8 by the cam follower 31m fixed to the moving opening frame 31g and abutting against the opening cam 31l. When the pair of upper and lower sealers 5a and 5b separate from each other, the center conveyor 3 approaches the unloading conveyor 8 by the opening cam 311 and the cam follower 31m.

As described above, the center conveyor 3 and the carry-out conveyor 8 are separated and approached when the pair of upper and lower sealers 5a and 5b are separated from each other.
Is located below the center conveyor 3, and the three-side seal wrapper 23a is
From the conveyor 8 to the conveyor 8 smoothly.

As shown in FIG. 6, the electric motor driving section 6
An electric motor 61a capable of rotating forward and reverse, and an electric motor 61a
Is rotated forward (clockwise in FIG. 6), the first one-way clutch (one-way clutch) 61b for transmitting power to the horizontal sealer 5 and the electric motor 61a are rotated in the reverse direction (counterclockwise in FIG. 6). And a second one-way clutch (one-way clutch) 61c for transmitting power to the vertical sealer 4 when it is rotated in one direction.

A timing pulley 61d is fixed to the driving shaft of the electric motor 61a.
And a timing pulley 61f interlocked via a timing belt 61e, are fixed to a clutch shaft 61g having a first one-way clutch 61b and a second one-way clutch 61c fixed to both ends. The first one-way clutch 61b is press-fitted into the inner diameter of a timing pulley 53a for driving the horizontal sealer 5, and the second one-way clutch 61c is connected to the vertical sealer 4 and the center conveyor 3.
Shaft 61 fixed to the transmission 43a for driving the
h.

The electric motor driving section 6 is shown in FIGS.
As shown in FIG. 3, a sequence controller 9 having a built-in forward / reverse rotation switching control circuit 21 (FIG. 9) for switching the forward / reverse rotation of the electric motor 61a in accordance with the drive timing of the vertical sealer 4 and the horizontal sealer 5 is provided. I have. As shown in FIG. 9, the forward / reverse rotation switching control circuit 21 includes a wrapping length adjusting means 22 for setting a predetermined wrapping length in accordance with the vertical dimension of the article 23 to be packaged.
The vertical sealer 4 and the center conveyor 3 are driven by the electric motor 61a based on the wrapper length setting signal S1 output from the
Drive.

In the three-side seal film packaging machine 1 configured as described above, (1) the upper vertical beams 11A and 11B and the lower vertical beam 12
A, 12B and four pillar beams 13A, 13B, 13
By connecting a plurality of T-shaped joints 15 between C and 13D, a frame 10 having a hexahedral frame structure is formed.
Can be assembled and disassembled. (2) Two upper vertical beams 11 in which the pre-assembled vertical sealer 4 and horizontal sealer 5 are respectively arranged in parallel.
Since it is only necessary to lay over the A and 11B, the assembling becomes easy and the degree of freedom in the transport direction increases. (3) Since the first one-way clutch 61b and the second one-way clutch 61c are provided to face each other,
The vertical sealer 4, the center conveyor 3, and the horizontal sealer 5 can be driven by only one electric motor 61a. (4) Since the horizontal sealer 5 and the electric motor drive unit 6 are connected by the link connecting mechanism 53, even if the horizontal sealer 5 is moved in the vertical direction (the direction of transport of the packaged object 23 (arrow X)), The power from the electric motor driving unit 6 can be transmitted without any change.

The packaging operation of the three-side-sealed film packaging machine will be described below. An operator (operator) guides the packaging film 24 from the former 2 to the vertical sealer 4 in advance, and prepares a three-side sealed wrapper for covering the packaged object 23 with the packaging film 24 by the former 2. In addition,
The heater (not shown) of each sealer is energized in advance and the temperature is controlled so that the packaging film 24 can be welded by the vertical sealer 4 and welded and blown off by the horizontal sealer 5.

When an operator (operator) presses a packaging start button (not shown), the forward / reverse rotation switching control circuit 21 built in the sequence controller 9 rotates the electric motor 61a in the reverse direction (counterclockwise in FIG. 6). Rotation)
The power of the electric motor 61a is a timing pulley 61d → a timing belt 61e → a timing pulley 61f → a clutch shaft 61g → a second one-way clutch 61c → a connecting shaft 61h → a transmission 43a → a V-belt 43b → a transmission 43.
c → drive shaft 43d → timing pulley 43e → timing belt 43f → timing pulley 43g → connection shaft 43
h → timing pulley 43i → timing belt 43j
→ timing pulley 43k → transmitted to bevel gear 42a via driven shaft 43l. Thereby, the vertical sealer 4 is driven by the power from the electric motor drive unit 6.

In addition to driving the vertical sealer 4, the power of the electric motor 61a is supplied to the center conveyor 3 by the timing pulley 61d → the timing belt 61e → the timing pulley 61f → the clutch shaft 61g → the second one-way clutch 61c → the connecting shaft 61h → Transmission 43a → V-belt 43
b → transmission 43c → drive shaft 43d → timing pulley 4
3m → transmitted to the conveyor belt drive roller 31c via the timing belt 31k. Accordingly, the conveyor belt driving roller 31c of the center conveyor 3 rotates leftward, so that the center belt 31e moves in the transport direction (arrow X) of the article 23 to be packaged.

The vertical sealer 4 stops when the packaged object 23 moves by a predetermined wrapping length. At the same time, the center conveyor 3 also stops. Then, since the forward / reverse rotation switching control circuit 21 causes the electric motor 61a to rotate forward (rotate clockwise in FIG. 6), the power of the electric motor 61a is changed from the timing pulley 61d → the timing belt 61e → the timing pulley 61f → the clutch shaft 61g → First one-way clutch 61b → timing pulley 53a → timing belt 53b → timing pulley 53c → connecting shaft 53
e → timing pulley 53f → timing belt 53g
→ It is transmitted to the crankshaft 52b via the timing pulley 52a. When the crankshaft 52b rotates, the cranks 52c and 52d move the upper sealer 5a to the cranks 52c and 52c.
52e and 52f connect the lower sealer part 5b to the pivot O
Are reciprocated around each other so as to move away from each other.

As a result, the pair of upper and lower sealers 5a and 5b of the horizontal sealer 5 are fused and blown at a position exactly intermediate between the wrapper 23a and the wrapper 23a (FIG. 2). At this time, the opening cam 311 fixed to the crankshaft 52b of the crank mechanism 52
The center conveyor 3 is separated from the unloading conveyor 8 by the cam follower 31m abutting on the opening cam 31l, and the pair of upper and lower sealers 5a and 5b approach each other in the space and form a horizontal seal by fusing and fusing. . Also,
When the pair of upper and lower sealers 5a and 5b separate (FIG. 1),
The center conveyor 3 approaches the carry-out conveyor 8 by the opening cam 311 and the cam follower 31m.

It should be noted that the fusing position by the horizontal sealer 5 is set in advance to be exactly the middle position between the wrapper 23a and the wrapper 23a.
The horizontal sealer mounting table 51 is moved in the vertical direction (the direction in which the packaged article 23 is transported (arrow X)) to position the horizontal sealer 5. Then, after the three-way seal wrapper 23a having a predetermined wrapper length is formed by fusing and fusing by the horizontal sealer 5 and is carried out from the carry-out conveyor 8, the operator (operator) receives the wrapped product 2 from the carry-out conveyor 8.
If the package 3 is placed on the packaging film 24 at the predetermined position on the former 2, the next packaging cycle as described above is started by pressing the packaging start button.

Although the present invention has been described with respect to the above-described three-side seal film packaging machine in the above-described three-side seal film packaging machine, the present invention can be similarly applied to the horizontal forward pillow three-side seal film packaging. That is, it is only necessary to place the vertical sealer and the horizontal sealer on the frame.

[0040]

As described above, according to the three-side seal film packaging machine of the present invention, the vertical sealer and the horizontal sealer are laid on the two vertical beams arranged in parallel. Can be easily assembled. In addition, the frame for mounting the vertical sealer and the horizontal sealer is placed in a hexahedral frame structure in which the vertical and horizontal beams are arranged in parallel and the beams are connected by a T-shaped joint. This facilitates on-site assembly. As a result, the manufacturing cost can be reduced as compared with the conventional three-side-sealed film packaging machine, so that it is suitable for small-quantity production.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a three-side seal film packaging machine of the present invention.

FIG. 2 is a front view showing the three-side seal film packaging machine of the present invention.

FIG. 3 is a top view showing the three-side seal film packaging machine of the present invention.

FIG. 4 is a side view of the three-side seal film packaging machine of the present invention as viewed from the former side.

FIG. 5 is a side view of the three-side-sealed film packaging machine of the present invention as viewed from the side of the conveyor.

FIG. 6 is a partial perspective view showing a driving mechanism for driving a vertical sealer, a horizontal sealer, and a center conveyor of the three-side seal film packaging machine according to the present invention.

FIG. 7 is a partial perspective view showing a horizontal sealer of the three-side seal film packaging machine according to the present invention.

FIG. 8 is a partial perspective view showing a center conveyor of the three-side seal film packaging machine according to the present invention.

FIG. 9 is a block diagram showing a control system of the three-side seal film packaging machine of the present invention.

FIG. 10 is a perspective view showing a conventional three-side seal film packaging machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Three-side seal film packaging machine 2 ... Former 3 ... Center conveyor 4 ... Vertical sealer 5 ... Horizontal sealer 5a, 5b ... A pair of upper and lower sealers 6... Electric motor drive (drive) 9... Sequence controller 10... Frames 11A, 11B. ..Top vertical beam (two vertical beams) 12A, 12B... Lower vertical beam (two vertical beams) 14A, 14B... L-shaped joint 23 ... Packaged object 24 ... Packing film 41 ... Vertical sealer mounting table 51 ... Horizontal sealer mounting table 52 ... Crank mechanism 52c, 52d, 52e, 52f ... Crank 53 ... ..Link connecting mechanism 56... Horizontal sealer height position adjusting mechanism 61a... Electric motor 61b... First one-way clutch 61c. One-way clutch

Claims (9)

[Claims] 1. A three-side seal film in which a packaged object is wrapped by a former in a wrapping film and conveyed on a center conveyor to form a three-sided seal wrapper having a predetermined wrapper length by fusing the vertical sealer and fusing and fusing the horizontal sealer. In the packaging machine, two vertical beams are arranged in parallel, the vertical sealer is placed over the two vertical beams arranged in parallel, and the two horizontal sealers are arranged in parallel. A three-sided seal film packaging machine characterized by being placed movably in the vertical direction over a vertical beam. 2. A three-sided seal film in which a packaged object is wrapped by a former in a wrapping film and conveyed on a center conveyor to form a three-sided seal wrapper having a predetermined wrapper length by fusing the vertical sealer and fusing and fusing the horizontal sealer. In a packaging machine, the vertical and horizontal beams are arranged in parallel, the beams are connected by a T-shaped joint to form a hexahedral frame structure that can be assembled and disassembled, and the vertical sealer is placed on two parallel vertical beams. 2 with the horizontal sealer placed in parallel with the
A three-sided seal film packaging machine characterized in that it is placed movably in the vertical direction over a vertical beam of a book. 3. A three-sided seal film in which a packaged object is wrapped in a packaging film by a former and conveyed on a center conveyor to form a three-sided seal wrapper having a predetermined wrapper length by fusing the vertical sealer and fusing and fusing the horizontal sealer. In the packaging machine, two vertical beams are arranged in a pair at upper and lower sides in parallel, respectively, and the vertical sealer is laid on the two upper vertical beams arranged in parallel with each other. Are mounted on the upper two vertical beams arranged in parallel so as to be movable in the vertical direction, and a drive unit for transmitting power to the vertical sealer and the horizontal sealer is provided on the lower two vertical beams. A three-sided seal film packaging machine installed above. 4. A three-side seal film in which a packaged object is wrapped in a packaging film by a former and conveyed on a center conveyor to form a three-sided seal wrapper having a predetermined wrapper length by fusing the vertical sealer and fusing and fusing the horizontal sealer. In a packaging machine, two vertical beams are arranged in parallel, the vertical sealer is placed over two parallel vertical beams, and the two horizontal beams are arranged in parallel with the horizontal sealer. The center conveyer is placed movably in the vertical direction over the top, and the center conveyor is interlocked with the horizontal sealer on a plurality of horizontal beams mounted on the two vertical beams arranged in parallel. A three-sided seal film packaging machine, which is installed so that it can expand and contract in the vertical direction. 5. A three-side seal film in which a packaged object is wrapped by a former in a wrapping film and conveyed on a center conveyor to form a three-side-sealed wrapper having a predetermined wrapping length by fusing the vertical sealer and fusing the horizontal sealer. In the packaging machine, a frame in which two vertical beams are arranged in parallel, a vertical sealer mounting table provided with the vertical sealer and mounted on the two vertical beams of the frame, and A three-side seal film packaging machine, comprising: a horizontal sealer mounting table provided with a sealer and movably mounted in a vertical direction over two vertical beams in which the horizontal sealer is arranged in parallel. . 6. A three-side seal film in which a packaged object is wrapped in a wrapping film by a former and conveyed on a center conveyor to form a three-sided seal wrapper having a predetermined wrapper length by fusing the vertical sealer and fusing the horizontal sealer. In the packaging machine, as a drive unit for transmitting power to the vertical sealer and the horizontal sealer, an electric motor capable of forward and reverse rotation, and power to one of the vertical sealer and the horizontal sealer when the electric motor is rotated forward. A first one-way clutch for transmitting power and a second one-way clutch for transmitting power to the other of the vertical sealer and the horizontal sealer when the electric motor is reversely rotated. Film packing machine. 7. A three-side seal film in which a packaged material is wrapped in a packaging film by a former and conveyed on a center conveyor to form a three-side-sealed wrapper having a predetermined wrapper length by welding and fusing the vertical sealer and the horizontal sealer. In the packaging machine, as a drive unit for transmitting power to the vertical sealer and the horizontal sealer, an electric motor capable of forward and reverse rotation, and power to one of the vertical sealer and the horizontal sealer when the electric motor is rotated forward. A first one-way clutch for transmitting power, a second one-way clutch for transmitting power to the other of the vertical sealer and the horizontal sealer when the electric motor is reversely rotated, and forward and reverse rotation of the electric motor. A three-way seal file comprising: a sequence controller that switches according to drive timing of a vertical sealer and the horizontal sealer. Packing machine. 8. A three-side seal film in which a packaged object is wrapped in a wrapping film by a former and conveyed on a center conveyor to form a three-sided seal wrapper having a predetermined wrapper length by fusing the vertical sealer and fusing the horizontal sealer. In the packaging machine, the horizontal sealer includes a pair of upper and lower sealers pivotally attached at a pivot point, and a crank mechanism that drives the pair of upper and lower sealers so as to move away from each other and power to the horizontal sealer. A three-sided seal film packaging machine, comprising: a link connecting mechanism that rotationally drives the crank mechanism in response to a vertical movement of the horizontal sealer from a transmitting drive unit. 9. The height of the horizontal sealer of the horizontal sealer is adjusted to half the height of the packaged object according to the height of the packaged object by adjusting the height of the crank of the crank mechanism. 9. The three-side seal film packaging machine according to claim 8, further comprising a horizontal sealer height position adjusting mechanism to be positioned.