CN2778697Y

CN2778697Y - Sealing structure of plastic-sealing and packaging machine

Info

Publication number: CN2778697Y
Application number: CN 200420117260
Authority: CN
Inventors: 林金表; 王军; 宁立平; 程广; 孙景涛
Original assignee: 孙景涛
Priority date: 2004-12-31
Filing date: 2004-12-31
Publication date: 2006-05-10
Anticipated expiration: 2014-12-31

Abstract

The utility model relates to a sealing structure of a plastic-sealing and packing machine, which comprises an upper and a lower heat-melt sheet type L-shaped cutters and an open-close type driving mechanism which is connected with the upper and the lower cutters. The open-close type driving mechanism in the design is composed of a guide column which is vertically positioned on a bottom plate by a bottom plate which is fixed on a machine frame of a plastic-sealing and packing machine, an upper and a lower guide plates which are sheathed on the guide column and present a sliding match, a screw rod which is assembled with the upper and the lower guide plates through screw thread through holes and is provided with a forward and an inverse screw threads, and a driving motor which is directly connected with the screw rod, wherein hanging arms which respectively extend from the upper and the lower guide plates are connected with the upper and the lower cutters. The utility model has the advantages of compact structure, agile driving and exact positioning.

Description

Sealing bodies of plastic packaging machine

Technical field

The utility model relates to the improvement to enclosed mechanism in the plastic sealing pack machine.The improvement to enclosed mechanism used in the machine of bank note thermoplastic film bundle hole specifically designs.

Technical background

The thermoplastic film encapsulation has become the various food of widespread usage, light industrial goods, even the packing technique of large-scale industrial products.Being used for bank note packing is the thing of nearly more than ten years, utilizes heat shrinkability characteristic to make thermoplastic film form a complete external packing, for banking industry special significance is arranged really.This mechanical equipment is simple, cheap, and the packing effect is tight and antitheft easily, yet the structure of present plastic sealing pack machine is tight inadequately, and volume is excessive, and awaits overall improvement.Enclosed mechanism particularly, its structure is formed the actuating unit that seals otch by the thermal fusion shape cutting knife of two upper and lower symmetries basically, and the driver train by an open-close type connects to form with it again.Two shape cutting knife butt joint types are attached to the just energising heating of shape heating wire on the shape handle of a knife, and it is bonding and cut off simultaneously that the thermoplastic film of doubling shape is melted the back.By continuous folding, will be wrapped in by the dress thing and enter next thermal contraction encapsulated phase in the thermoplastic film again.The most frequently used open-and-close mechanism is a manually operated, after be improved to mechanical type and drive, basic open-close type mechanism is positioned at two on the plane that dead axle rotates with shape cutting knife, rotates by the plane and finishes, do that the space is big, efficient is low, and need further improvement.

Summary of the invention

The purpose of this utility model provides a high efficiency enclosed mechanism design, and compact conformation drives flexibly, and accurate positioning can realize the production of mass package handling.

Design of the present utility model is as follows: by a base plate that is fixed on the plastic sealing pack machine frame, be vertically positioned in the guide pillar on the base plate, be sleeved on the guide pillar and be the upper and lower guide plate of slip cooperating relationship with guide pillar, the screw rod that is fitted in upper and lower guide plate by tapped bore with forward and reverse screw thread, and form with the direct-connected drive motor of screw rod, cantilever that upper and lower guide plate extended out and upper and lower shape cutting knife connect together, and form a complete enclosed mechanism.When the motor-driven screw rod rotates, because of positive and negative screw drive, upper and lower guide plate can produce the reverse motions of separating or merging, then drive shape cutting knife and produce merging or separation, at double-pole and fashionable, heating wire energising on the cutting knife makes thermoplastic film merge with shape and cuts off, and puts in place after the then upper and lower cutting knife of motor counter-rotating separates and prepares operation next time.The open and close movement that this reverse-flighted screw drives, speed is quick, and process is steady, puts in place accurately, control easyly, and pressure is even, and otch is smooth, drives to have compared with manual or rotary folding and significantly just gets over property.

How further specify goal of the invention of the present utility model below in conjunction with accompanying drawing realizes.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Wherein 1 is thermal fusion shape upper cutter, and 2 for pricking vent needle, and 3 is heating wire, and 3A is a glass wool cloth, and 4 is thermal fusion shape lower cutter, 5 is guide pillar, and 6 is motor, and 7 is the light idol, and 8 is screw rod, and 9 is orienting sleeve, 10 is upper guide plate, and 11 is bottom guide, and 12 is base plate, and 13 is light idol detection lug, and 14 is the guide plate cantilever.

The specific embodiment

From accompanying drawing 1 as can be seen the improved key of the utility model be the open-close type driver train, open-and-close mechanism among the design is by the base plate 12 that is fixed on the plastic sealing pack machine frame, be vertically fixed on the guide pillar 5 on the base plate 12, be sleeved on the guide pillar 5 and be the upper guide plate 10 and the bottom guide 11 of slip cooperating relationship with guide pillar.By tapped bore and upper and lower guide plate (10,11) screw rod with positive and negative two sections screw threads 8 that is assembled together, and form with the direct-connected drive motor 6 of screw rod 8, upper and lower guide plate (10,11) go up outer cantilever that extends 14 and upper and lower shape cutting knife (1,4) be fixed together, form the synchronous opening and closing motion of guide plate and cutting knife.Under driving, finishes package behind the parcel of packed article and cut-out by motor 6 along with folding drives.

On thermal fusion shape upper cutter, be provided with two rows and prick vent needle, be used for when melting the seal dress, on plastic film, pricking the hole, in order to when heat shrinkage film, giving vent to anger.In addition, combine position transduser, be used for controlling detection that the folding of shape cutter puts in place or spacing, be convenient to realize automatic guidance in the photoelectricity idol 7 that is provided with photoelectricity idol sensing chip 13 on the bottom guide 11 and be located on the base plate 12.

Among the design, be fixed on the base plate 12 guide pillar be provided with being distributed on the base plate 1 of two vertical summetry, in the both sides of screw rod 8.Guide plate (10,11) is provided with orienting sleeve (9), contacts with guide pillar and is slip cooperating relationship by orienting sleeve.Above structure makes when bolt (8) drives the upper and lower resultant motion of upper and lower guide plate (10,11), steadily, smoothly.

In order to prevent overheated melting plastic film contaminated environment, be convenient to temperature control and homogeneous heating, on the of lower cutter 4 shape heating wire, add especially and cover one deck glass fiber cloth.

Above structure design is simple, compactness, and folding speed is fast, operates steadily, and puts in place accurately, and pressure control is accurate, presses and glues with the cut-out quality and can obviously improve.

Claims

1, the enclosed mechanism of plastic sealing pack machine, including heat in the structure melts on the chip shape, lower cutter (1,4) and with last, lower cutter (1,4) the open-close type driver train that links together, it is characterized in that the open-close type driver train is by the base plate (12) that is fixed on the plastic sealing pack machine frame, be vertically located in the guide pillar (5) on the base plate (12), be sleeved on that guide pillar (5) is gone up and be the upper guide plate (10) and the bottom guide (11) of slip cooperating relationship with guide pillar (5), by tapped through hole and last, bottom guide (10,11) screw rod with positive and negative two sections screw threads (8) that is assembled together, and form with the direct-connected drive motor (6) of screw rod (8), on, bottom guide (10,11) go up extended cantilever (14) with last, lower cutter (1,4) is fixed together.

2,, it is characterized in that thermal fusion shape cutting knife (1) is provided with two rows and pricks vent needle according to the said enclosed mechanism of claim 1.

3,, it is characterized in that on bottom guide (11), being provided with the photoelectricity idol (7) that photoelectricity idol sensing chip (13) and correspondence be arranged on (12) on the base plate and form an inhibiting device according to the said enclosed mechanism of claim 1.

4, according to the said enclosed mechanism of claim 1, it is characterized in that said guide pillar (5) has two, be positioned to vertical summetry on the base plate (12), be in screw rod (8) both sides, upper and lower guide plate (10,11) be set with orienting sleeve (9) on, contact with guide pillar (5) by orienting sleeve (9), and be slip cooperating relationship.

5,, it is characterized in that on the shape heating wire (3) of lower cutter (4), adding and cover layer of glass cloth (3A) according to the said enclosed mechanism of claim 1.