CN2141797Y

CN2141797Y - Die set for plastic bag cutting and closing machine

Info

Publication number: CN2141797Y
Application number: CN 92224220
Authority: CN
Inventors: 翁进忠
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-06-04
Filing date: 1992-06-04
Publication date: 1993-09-08
Anticipated expiration: 2002-06-04

Abstract

The utility model relates to a punching mould for plastic bag sealing and cutting machine. The top end of the upper mould connects with a piston rod of a driving pneumatic cylinder mounted on a machine table cradle and the top end of the upper mould protrudes at the acting surface of the lower mould to punch the knife blade in the predetermined shape U. The interior of the lower mould is provided with a heating element to conduct heating treatment to the punching knife blade protruding at the heating seat. Meanwhile, the appropriate positions of the acting surface of the lower mould and the anti-slip protective pad for providing a plastic bag for leaning on are respectively provided with recesses to sheath a compression spring which can cause the protective pad to ascend to the original position among the opposing recesses. Hereby, the plastic bag mouth pre-punching and cutting work after the plastic bag sealing the bottom of the plastic bag is completed, which is convenient for tearing and separating the plastic bag when the plastic bag is used.

Description

Die set for plastic bag cutting and closing machine

The utility model relates to a kind of plastic bag envelope cutter mould of blurting out.

The plastic bag goods that just are generally the dealer at present and adopted are providing the die-cut operation of back cover and sack (seeing also Fig. 1), roughly be to adopt the former bag of plastics P drum type brake is set on the preceding bearing (1), control by control box, making the former bag of plastics P circulating type through between the feeding roller (11) of motor drive enter printing photoelectricity mechanism (2) by tension web (12) is printed earlier, after the former bag of the plastics that are completed for printing P gives back cover by back cover mechanism (3) again, drive the disconnected punching die (4) of inlet point by back cover adjustment rack (31) mat size feed mechanism (32), give punching press by the disconnected punching die (4) of point, make the former bag of plastics have some broken string and the mobile division of facing with back cover line circle, be molded plastic bag this moment, again by the drive of auxiliary feed mechanism (5), through rear support (6) go up installation by after the winding wheel (61) of motor drive batch, just form cylinder package formula plastic bag.

And the disconnected punch mechanism (4) (asking for an interview Fig. 2) of the applied point of this aforementioned general dealer, mainly be upward to locate sheathed with mould seat (42) at the bracing frame (41) that board is located, lock with mold (43) at mould seat (42) bottom mat screw (421), and be provided with the punching blade (431) of the indentation that stretches out in mold (43) bottom, at the protection pad (44) of the bottom of mold (43) locking with groove (441) with cooperation punching blade (431) shape.Disconnected punch mechanism (4) place, the orientation fixed installation of corresponding point bed die (45) on board also cooperates the punching press cutter to levy (431) shape on bed die (45) plane of action and digs the recess (451) that is provided with appropriate depth in addition; When the former bag of plastics P after implementing back cover through back cover mechanism (3), and when driving by the disconnected punching die (4) of desired location inlet point by feed mechanism (32), the former bag of plastics P rests on protection pad (44) bottom face, at this moment, being located at board in-to-in transmission device (not shown) just can drive bed die (45) and move toward the top, and push toward upper position together with compressing protection pad (44), at this, make the punching blade (431) of projection stretch into protection pad (44) plane of action outside in mold (43) bottom, and the punching blade (431) that makes indentation is rolled in the recess (451) of plastics former bag pre-die-cut sack of P and bed die (45), to finish the sack stamping press of the former bag of a little disconnected plastics P;

Yet, this kind rolls finished product that the plastic bag vest sack peripheral region cut finishes in manufacturing when peddling the commodity dealer and use through zig-zag punching blade (431), be to adopt indented knife to thrust the vest sack to produce the zig-zag striped often then because of the sack of this polythene bag, when being torn at the plastic bag of using as commodity packaging at ordinary times, just can miss the main points owing to tearing, exerting oneself excessive or during deflection, plastic bag is had zig-zag point suture place along with plastic bag upper end vest sack in the vest sack, tear, peddle not convenient in dealer's application and cause;

Therefore, the purpose of this utility model is to provide a kind of cylinder package formula plastic bag mould of blurting out, and makes on the former bag of plastics die-cut sack be convenient to neat clever and lands plastic bag is torn separation, and obtain the plastic bag of the complete plastic bag shape of the mouth as one speaks.

According to a kind of plastic bag envelope cutter of the present utility model mould of blurting out, it mainly comprises mold, protection pad, bed die and punching blade; With the disconnected die-cut operation of the sack point that plastic bag is provided;

It is characterized in that: the top of mold be positioned at the board support on the piston rod of the driving air cylinder installed be connected, and in the projection of bed die plane of action with reservation shape shape punching blade, and be assembled with heater element in bed die inside, to make furnace run to being installed on the heated seats punching blade of projection, while is on the bed die plane of action and provide plastic bag then to be respectively arranged with depression by the anti-skidding protection pad of putting at suitable position, and fit can make the up compression spring of return of protection pad between the relative depression;

Plastic bag is entering on the protection pad of the die assembling of blurting out through being driven by feed mechanism behind the back cover, can down move to oppress protection pad and to drive protection pad by driving air cylinder drive mold toward bottom offset, and the punching blade with temperature that makes the projection of bed die institute is stretched on protection pad top end face, the pre-die-cut place of plastic bag and enters in the default recess of mold, comes die-cut plastic bag sack.

The blurt out feature of mould of the plastic bag of relevant the utility model envelope cutter will be described as follows with a concrete possible embodiments conjunction with figs. formula:

Fig. 1 is the scheme drawing of cylinder package formula plastic bag envelope cutter;

Fig. 2 is the blurt out exploded perspective view of mould of the plastic bag of the utility model envelope cutter;

Fig. 3 is the blurt out sectional view (before the punching press action) of mould of the plastic bag of the utility model envelope cutter;

Fig. 4 is the blurt out sectional view (punching press action back) of mould of the plastic bag of the utility model envelope cutter;

Fig. 5 seals the blurt out exploded perspective view of mould of cutter for the plastic bag of tradition.

At first see also Fig. 2, Fig. 3, the utility model mould (4) of blurting out mainly is made up of mold (41), protection pad (42), bed die members such as (43);

The top of mold (41) is connected with the piston rod (441) that is positioned at the last driving air cylinder of installing (44) of board support (A), and is provided with the recess (411) that cooperates punching press sack blade shapes on mold (41) plane of action;

Anti-skidding protection pad (42) is made for the material with heat-resisting and shock-resistant toughness, is provided with the groove (421) of the blade shapes that cooperates the die-cut sack of plastic bag at protection pad (42) predetermined position, and is provided with depression (422) at four corners in protection pad (42) bottom;

Bed die (43) has the last mould pedestal of the board of being fixed on locating plate (B), in bed die (43) plane of action projection to have the shape punching blade (431) of reservation shape, be assembled with heater element (432) in bed die (43) inside, so that the punching blade (431) that is located at the last projection of bed die (43) is carried out furnace run, the temperature of the punching blade after the heating (431) is about (100 °～120 ℃), simultaneously suitable position (this embodiment at four corners) is provided with depression (433) on bed die (43) plane of action, and fit has the compression spring (434) of elastic-restoring force between the depression (422) of the set depression (433) of bed die (43) and protection pad (42) bottom of upper end installation;

(ask for an interview Fig. 3) during aggregate erection bed die (43) is fixed on the board locating plate (B), protection pad (42) correspondence that then inside is had groove (421) is linked on the punching blade (431) of bed die (43) institute projection, simultaneously fit is with compression spring (434) between bed die (43) and the pairing depression of protection pad (42) (433), (422), and the aforementioned mold (41) of assemble afterwards bed die (43) and protection pad (42) and being connected on the driving air cylinder (44) is opposed mutually.

(ask for an interview Fig. 3 during operation, Fig. 4), when the former bag of the plastics that are completed for printing P after carrying out back cover through back cover mechanism, and drive by feed mechanism and to enter on the protection pad (42) of the mould of blurting out (4) assembling, the punching blade (431) that is assembled in the last projection of bed die (43) this moment also is heated element (432) and carried out furnace run (its temperature is 100 °～120 ℃) after starting source switch (1) in advance, can move downward by driving air cylinder (44) drive mold (41), with together with compressing protection pad (42) toward bottom offset, be stretched on protection pad (42) top end face and go out and the punching blade with temperature (431) that makes projection on the bed die (43) is instantaneous, to the die-cut and mistake in the predetermined die-cut place of the former bag of plastics P, and enter in the default recess (411) of mold (41), at this moment, just finish the die-cut vest sack of the high temperature blade operation that the default sack place of the former bag of plastics P is carried out; Then, drive air cylinder (44) and promptly back promote and drive the past top offset of mold (41), the protection pad (42) that is installed in bed die (43) top promptly be subjected to being linked in the compression spring (434) between two members restoring force the effect of last top and rise, the punching blade (431) of projection on bed die (43) is relative being retracted in the set groove (421) of protection pad (42).At this, by high temperature punching blade (431) the both sides, reservations sack place of the former bag of die-cut plastics P then owing to viscosity under the high temperature of plastic bag itself is extremely strong, still can be connected constantly with the former bag of leading portion plastics P, only on the former bag of plastics P, reserve the pocket shapes that punches out through punching blade, to this molded plastic bag, just can by the drive of auxiliary feed mechanism (5) (seeing also Fig. 1) through rear support (6) ring roll up in after between the winding wheel (61) of motor drive, and form a cylinder package formula plastic bag.Make when peddling the commodity dealer and use plastic bag packaging, it is more convenient to separate along die-cut line tear fracture.

Claims

A kind of plastic bag envelope cutter mould of blurting out, it mainly comprises mold, protection pad, bed die and punching blade; With the disconnected die-cut operation of the sack point that plastic bag is provided;

It is characterized in that: the top of mold be positioned at the board support on the piston rod of the driving air cylinder installed be connected, and in the projection of bed die plane of action with reservation shape V-arrangement punching blade, and be assembled with heater element in bed die inside, to make furnace run to being installed on the heated seats punching blade of projection, while is on the bed die plane of action and provide plastic bag then to be respectively arranged with depression by the anti-skidding protection pad of putting at suitable position, and fit can make the up compression spring of return of protection pad between the relative depression;

Plastic bag is entering on the protection pad of the die assembling of blurting out through being driven by feed mechanism behind the back cover, can down move to oppress protection pad and to drive protection pad by driving air cylinder drive mold toward bottom offset, and the punching blade with temperature that makes the projection of bed die institute is stretched on protection pad top end face, the pre-die-cut place of plastic bag and enters in the default recess of mold, comes die-cut plastic bag sack.