Package making – Apparatus for forming or partially forming receptacle and... – Forming by opening or setting up collapsed receptacle
Reexamination Certificate
1999-12-01
2002-07-23
Sipos, John (Department: 3721)
Package making
Apparatus for forming or partially forming receptacle and...
Forming by opening or setting up collapsed receptacle
C053S133800, C053S141000, C053S389400, C083S660000
Reexamination Certificate
active
06421988
ABSTRACT:
BACKGROUND OF THE INVENTION
(a) Technical Field of the Invention
The present invention relates to an automatic packing, sealing and cutting machine for plastic film, and in particular, to a packing machine using plastic film, having a film-delivery device including a film-tension adjusting device, a rolling needle wheel, a separation rod, an electrostatic eliminating rod and a sliding movement adjusting device, an elevation rod, an air blowing device and film-pulling wheel, a sensing device and a sealing and cutting knife driving device.
(b) Description of the Prior Art
FIG. 1
shows a conventional automatic packing, sealing and cutting device for plastic film comprising a machine frame
1
, a film-holding frame
2
, a film-guiding rod
3
, a front delivery seat
4
, an upper and lower triangular board
5
, an upper triangular board adjusting seat, a sealing and cutting knife
6
, a rear delivery seat
7
, a waste collection wheel and a control system
8
, wherein the plastic film
9
is located on the film-holding flame
2
and the film
9
passes through the film-guiding rod
2
such that the film is flat in the process of delivery. The film
9
is extended to open by the upper and the lower triangular board
5
such that the plastic film encloses a storage space. After that the plastic film is clipped by the clipping chain at the rear delivery seat
7
. The to-be delivered object is placed at the front delivery belt of the front delivery seat
4
. By means of the delivery belt the object is delivered to the rear delivery seat
7
. By the sensing of the electronic sensor, the control system
8
drives the sealing and cutting knife
6
to seal and cut the plastic film
9
, and the real delivery belt transports out the packed, sealed object. The waste plastic film
9
is collected by the waste collection wheel. If a taller object is to be packed, the height of the triangular board is adjusted by means of the triangular board adjusting seat such that the object can pass through and there is enough plastic film
9
for packing.
SUMMARY OF THE PRESENT INVENTION
Accordingly, an object of the present invention is to provide an automatic packing, sealing, and cutting machine for plastic film comprising a film delivery device, a front conveying seat device, a rear conveying seat device, a sealing and cutting knife and a control box, wherein
(a) the adjusting seat
60
is a rotating body and includes a rotating wheel
601
to rotate a screw rod
602
, and a frame seat
604
located at the screw rod
602
is moved accordingly, and the bottom end of the seat
60
is provided with a securing rotating disc
603
for the mounting of the frame seat
604
;
(b) the air pressure cylinder
61
has an end terminal pivotally mounted at the frame seat
604
and the air pressure rod
610
at the front end thereof passes the linking rod
611
and then secured to the rotating shaft
62
;
(c) the rotating shaft
62
is pivotally mounted to the shaft rod within the machine;
(d) the interlinking arm
63
is mounted at the two lateral sides of the rotating shaft
62
and has an arm
630
with two protruded ends;
(e) the rod
64
has one end pivotally mounted at the arm
640
and has the other end pivotally connected to the sealing, cutting knife;
(f) a sealing, cutting knife is used to seal and cut the contracted film, and has one side being provided with an external protruded disc.
In accordance with the present invention, the adjusting seat
60
is mounted at the bottom end of the machine and the adjusting seat
60
is mounted onto the rotating shaft via the air pressure cylinder
61
, the interlinking rod
610
, so that the front and rear displacement of the air pressure rod
61
drives the interlinking rod
611
and a swinging movement is formed, and the rotating shaft
62
is reciprocating. Thus the interlinking arm
63
at the side of the rotating shaft
62
will reciprocate. As a result, when the four corresponding rods
64
are respectively mounted at the arm
631
and the upper and lower end of the sealing, cutting seat, the rod
64
will rotate in relation to the interlinking arm
63
so as to produce a pulling and a pushing force, and the sealing and cutting seat forms a continuing open and closing type of sealing and cutting action.
REFERENCES:
patent: 2860555 (1958-11-01), Williamson
patent: 3323282 (1967-06-01), Duns
patent: 3354605 (1967-11-01), Amberg
patent: 3389626 (1968-06-01), Wise
patent: 3420034 (1969-01-01), Saraisky
patent: 3470795 (1969-10-01), Davis
patent: 3684142 (1972-08-01), Jackson
patent: 3685251 (1972-08-01), Mahaffy
patent: 4715250 (1987-12-01), Roseman
patent: 4768411 (1988-09-01), Su
patent: 5372494 (1994-12-01), Vaughan
patent: 5381640 (1995-01-01), Chiu
patent: 5423162 (1995-06-01), Chiu
patent: 5816301 (1998-10-01), Stager
patent: 5842320 (1998-12-01), Chiu
patent: 5966898 (1999-10-01), Su
patent: 6-32330 (1994-06-01), None
Lei Leong C.
Sipos John
LandOfFree
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