CN2414006Y

CN2414006Y - Heating pressing-bond device for package machine

Info

Publication number: CN2414006Y
Application number: CN 00205710
Authority: CN
Inventors: 张崇益; 杨季奇
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-14
Filing date: 2000-02-14
Publication date: 2001-01-10
Anticipated expiration: 2010-02-14

Abstract

The utility model relates to a heating pressing-bond device for a packing machine. The interior of a packing machine body is provided with a vacuum tank and a vacuum pump connected with an electromagnetic valve communicated with the vacuum tank through a joint; the vacuum tank is closed space, the interior of the vacuum tank is provided with an electric heating rod which can move up and down, and the vacuum tank is provided with a cover body provided with pressing strips corresponding to the electric heating rod; an air bag is arranged under the electric heating rod, and is communicated with an inert air pump externally arranged through the electromagnetic valve. The utility model can provide stable air pressure for the air bag to ensure the quality of a hot-press sealing.

Description

Wrapping machine adds hot pressing device

The utility model relates to the hot pressing device that adds of a kind of wrapping machine, particularly wrapping machine.

The heating pressing structure of present finding wrapping machine, mostly its hot sealing device is by the pressuring expansion of air bag heating sucker rod imposed and raises, make and wait that the bag that seals can be heat-sealed device institute's packing and seals, system all vacuumizes vacuum tank and air bag before right its sealing, be to open and close with electromagnetic valve to control after packing, making air bag form negative pressure value presses so that atmosphere is formed to inhale, air pressure in its air bag is to change into less negative pressure value or malleation value from bigger negative pressure value, airbag inflation pressure must be more than 0.276MPa when so carrying out this heat-sealing action, can reach the sealing effectiveness of the best, and usually at the extraneous gas of being drawn, the degree of stability of its pressure is unsatisfactory, as under its insufficient pressure state, air bag can't be under the state that struts fully, promptly can make hot sealing device and bag have between sealing the slit to exist, and seal instability to cause it, cause poor quality to seal, more even have overheated and the situation that sack breaks is taken place.

The purpose of this utility model is to provide a kind of wrapping machine to add hot pressing device, can provide stable gaseous tension to air bag, to guarantee the quality of hot-press sealed.

The utility model provides a kind of wrapping machine to add hot pressing device, be within the wrapping machine body, to be provided with vacuum tank and vacuum pump, this straight empty pump and electromagnetic valve join, this electromagnetic valve is communicated with vacuum tank by a joint, this vacuum tank is an enclosure space, in vacuum tank, be provided with a heating sucker rod moving up and down, vacuum tank is provided with lid, it is relative with heating sucker rod to be provided with press strip in lid, then be provided with air bag in the heating sucker rod below, it is characterized in that: this air bag is connected with an external inertia inflator by an electromagnetic valve.

Described wrapping machine adds hot pressing device, it is characterized in that: this vacuum pump can join with a two-way electromagnetic valve, and this two-way electromagnetic valve is connected vacuum tank and three-way magnetic valve respectively with a joint again.

Described wrapping machine adds hot pressing device, it is characterized in that: this three-way magnetic valve is communicated with inertia inflator, air bag respectively.

Described wrapping machine adds hot pressing device, it is characterized in that: the air pressure that this inertia inflator is supplied with, the expansion pressure that offers air bag are more than 0.276MPa, and greater than the pressure in the vacuum tank.

Described wrapping machine adds hot pressing device, it is characterized in that: the output airway of inertia inflator is provided with a pressure-gradient control valve.

Described wrapping machine adds hot pressing device, it is characterized in that: the built-in gas of inertia inflator is nitrogen.

Wrapping machine of the present utility model adds hot pressing device, noble gas by the inertia inflator is supplied with, and loop control by electromagnetic valve, so that supercharging makes airbag inflation raise heating sucker rod to carry out hot sealing to air bag, the utility model is that the air pressure of mat inertia inflator offers air bag and makes the required gas of supercharging, the air pressure that this inertia inflator pressure tank is supplied with, the state that can stablize guarantees that airbag inflation pressure is more than 0.276MPa, and air bag is under the complete softened state, can avoid or reduce hot sealing device and the bag slit between sealing produces, improve the stability and the homogeneity of sealing, and can guarantee the sealing effectiveness of the best.

In order further to understand the architectural feature and the purpose thereof of the utility model, now with preferred embodiment attached with graphic detailed description as the back:

The explanation of accompanying drawing drawing:

Fig. 1: the three-dimensional appearance scheme drawing that is the utility model.

Fig. 2: the scheme drawing that is the utility model textural association.

Fig. 3: be air bag unaerated view of the present utility model.

Fig. 4: be inflated condition scheme drawing of the present utility model.

Please cooperate and consult shown in Fig. 1,2, wrapping machine of the present utility model adds hot pressing device, mainly comprise inertia inflator 10, three-way magnetic valve 20 and air bag 30, force supplying inert gas by the high-pressure inert gas in the inertia inflator 10, and the electromagnetic valve 20 of flowing through makes the automatic guidance that is subjected to electromagnetic valve 20, unreactable gas is converged within the air bag 30, make the air bag 30 rapid upwards pushing tow heating sucker rods 40 that expand, be heated pressing and bag 50 is sealed.

Be provided with vacuum pump 60 within the wrapping machine body, vacuum pump 60 joins with two-way electromagnetic valve 70, make vacuum pump 60 can be subjected to two-way electromagnetic valve 70 automatic guidances, two-way electromagnetic valve 70 utilizes a joint 80 again and connects vacuum tank 90 and three-way magnetic valve 20 respectively, vacuum tank 90 is the accommodation spaces that add hot pressing as bag 50, and can cooperate the lid 91 on it and form an enclosure space, three-way magnetic valve 20 then difference is communicated with inertia inflator 10, air bag 30 again, to form the loop.

The bag 50 that desire is made the heating pressing sealing is placed in the interior vacuum tank of body 90, and under the situation that the lid on the vacuum tank 91 covers, can be by the start of vacuum pump 60, see through the control of two-way electromagnetic valve 70 again, and respectively vacuum tank 90 and air bag 30 are vacuumized, make it to guarantee to be under the vacuum state.

Please cooperate and consult shown in Fig. 3,4, after bag 50 is evacuated and charges into unreactable gas, vacuum tank 90 is to be in vacuum state with air bag 30, this moment is again by the air pressure coercively fed of inertia inflator 10, and with three-way magnetic valve 20 control starts, and this air pressure can be directed within the air bag 30, make it to expand, this air bag 30 expand and the heating sucker rod 40 of interlock pushing tow on it to rising, make and can do relative pressing with the press strip 92 of lid 91, can be sealed and the bag 50 that places 92 of heating sucker rod 40 and press strips is sealed.

The utility model is the gaseous tension with 10 supplies of inertia inflator, via three-way magnetic valve 20 start of controlling it, directly import air bag 30 inside with this gas again, and the pressure of this gas is greater than the pressure in the vacuum tank 90, making this air bag 30 expand and force forces heating sucker rod 40 to do the action of fast rise, and place the sealing between the press strip 92 that is in heating sucker rod 40 and lid 91 of bag 50 on the heating sucker rod 40 by closely pressing so that bag 50 seal be able to sealed really.

The gas of putting can be nitrogen within the inertia tracheae 10, is preferable enforcement state.

Maximum capacity according to general vacuum nitrogen is about 50%, and the force value in it is if reduced to-0.276Mpa by-0.524MPa, this moment, air bag 40 suffered bar pressures can increase to-0.276MPa, and be to improve packaging seal efficient, so can be with vacuum tank 90 differential pressures of the utility model to-0.0827MPa, and it forms difference of pressure with-0.276MPa, therefore utilize the pressure of nitrogen to stress within the air bag 40, add the pressure that nitrogen is promoted by vacuum tank 90 interior pressure to improve air bag 40 pressures in the time of sealing; And at the pressure of vacuum tank 90 be-during 0.083MPa, if this value is made as 0, then air bag 40 required force value also must not be less than 0.0827MPa, so the pressure in the air bag 40 is made by nitrogen again and charge to 0.284MPa, so air bag 40 required force value are 0.284Mpa and add 0.083MPa, are the numerical value of its best with this 0.367MPa.

And be to be provided with a pressure-gradient control valve in addition on the output airway of inertia inflator 10, adjusting its gas output pressure, and can avoid causing the delivery pressure deficiency of this gas with the increase of air feed number of times.

Claims

1, a kind of wrapping machine adds hot pressing device, be within the wrapping machine body, to be provided with vacuum tank and vacuum pump, this straight empty pump and electromagnetic valve join, this electromagnetic valve is communicated with vacuum tank by a joint, and this vacuum tank is an enclosure space, is provided with a heating sucker rod moving up and down in vacuum tank, vacuum tank is provided with lid, it is relative with heating sucker rod to be provided with press strip in lid, then is provided with air bag in the heating sucker rod below, it is characterized in that:

This air bag is connected with an external inertia inflator by an electromagnetic valve.

2, wrapping machine as claimed in claim 1 adds hot pressing device, it is characterized in that: this vacuum pump and a two-way electromagnetic valve join, and this two-way electromagnetic valve is connected vacuum tank and three-way magnetic valve respectively with a joint again.

3, wrapping machine as claimed in claim 2 adds hot pressing device, it is characterized in that: this three-way magnetic valve is communicated with inertia inflator, air bag respectively.

4, wrapping machine as claimed in claim 1 adds hot pressing device, it is characterized in that: the air pressure that this inertia inflator is supplied with, the expansion pressure that offers air bag are more than 0.276MPa, and greater than the pressure in the vacuum tank.

5, add hot pressing device as claim 1 or 4 described wrapping machine, it is characterized in that: the output airway of inertia inflator is provided with a pressure-gradient control valve.

6, wrapping machine as claimed in claim 1 adds hot pressing device, it is characterized in that:

The built-in gas of inertia inflator is nitrogen.