CN102501403A

CN102501403A - Production method for paper packaging container used for food by ultrasonic welding

Info

Publication number: CN102501403A
Application number: CN2011103493929A
Authority: CN
Inventors: 蔡春华
Original assignee: SHANGHAI JINYE PACKING MATERIAL CO Ltd
Current assignee: SHANGHAI JINYE PACKING MATERIAL CO Ltd
Priority date: 2011-11-08
Filing date: 2011-11-08
Publication date: 2012-06-20

Abstract

The invention discloses a production method for a paper packaging container used for food by ultrasonic welding, comprising the following steps of: connecting the energy converter of an ultrasonic welding machine to the side seam welding head of a cup body moulding machine and the rolling-type welding head of a cup bottom rolling moulding machine respectively by ultrasonic welding technology, and transferring vibration mechanical energy to the welding seam of a cup body and a cup bottom so as to fuse the polyethylene film layer of a paper plate, thereby realizing the purpose of welding for the paper container. The production method for a paper packaging container used for food by ultrasonic welding disclosed by the invention has no need to coat a hot-melt adhesive, and has the advantages of being easy to control the temperature of welding area, without damage on the printed pictures and texts of product, fast in welding speed, low in energy consumption, high in efficiency, as well as capable of keeping the cleanness of equipment and enhancing the safety of food packaging.

Description

A kind of with the preparation method of ultrasonic bonding food with the papery packing container

Technical field

The present invention relates to technical field of packaging and printing, especially a kind of with the preparation method of ultrasonic bonding food with the papery packing container.

Background technology

In the prior art, in the manufacturing process of food, to the seam of papery packing container with the papery packing container; Adopt and apply bonding agent; 1., tack temperature is wayward method with electrothermal tube heating is implemented welding, and the problem of existence is:: the paper feeding panel be heated extend influence big, after temperature raises; With the picture and text printing surface that damages product surface, the hot pressing workpieces face that contacts with mould is prone to jaundice knot carbon; 2., apply the bonding agent complex procedures: thermosol need be smeared by the lap-joint at workpiece, carries out crimping through hot blast melting heat melten gel, needs to be equipped with the daub machine, and the water clock of glue not only pollutes production equipment and surrounding enviroment, and food security is difficult to guarantee; 3., energy consumption is high, effect is low: with the electrothermal tube heating, its power needs 3KW at least, and the thermosol setting rate is slow, and inefficiency, die head are difficult for cleaning, and is prone to take place the scald accident during cleaning die head.

Summary of the invention

What the objective of the invention is to provide to the deficiency of prior art is a kind of with the preparation method of ultrasonic bonding food with the papery packing container, and this method employing supersonic welding connection technology need not smeared thermosol; Have the welding region easy temperature control, do not damage the printing figure message of product, speed of welding is fast; Energy consumption is low; Efficient is high, and keeps equipment cleaning, improves the advantage of packaging for foodstuff security.

The concrete technical scheme that realizes the object of the invention is:

A kind of with the preparation method of ultrasonic bonding food with the papery packing container; Characteristics are that this method comprises the manufacture craft that connects supersonic welder and papery packing container, and said connection supersonic welder is that the transducer with supersonic welder is connected on the latasuture soldering tip and rolling-type soldering tip of making papery forming package container machine;

The making of said papery packing container comprises the steps:

A), make sheet stock: on blanker, make the fan-shaped sheet stock and the circular sheet stock at the cup end or the bowl end of shaping cup or bowl body;

B), welding cup or bowl side seam: on make-up machine; Cup or bowl body sheet stock are crimped onto on the counterdie; Become the cone tubular; The dual-side of overlap joint cup or the fan-shaped sheet stock of bowl body; Form weld seam; The latasuture soldering tip presses down weld seam, soldering tip pressure from the counterdie outside: 0.25～0.4 Mpa, welding machine frequency: 1.5～2.0 KHz, pressure welding time: 0.5～1 s;

C), cup or bowl body flanging: on make-up machine, cup or bowl body end opening are implemented flanging;

D), the cup end or the bowl end are shaped: on make-up machine, the folding vertical edges of circumference to the circular sheet stock at the bottom of the cup or the bowl end makes its one-tenth discoid;

E), the circumferential weld at welding cup or bowl body and the cup end or the bowl end: on make-up machine; Cup or bowl body are set on the rotation die body; The cup end or the bowl end, place in cup or the bowl body end opening; Cup or bowl body end opening flanging are carried out reflexed; At the bottom of making glass or the vertical edges at the bowl end be wrapped in cup or the bowl body end opening flanging; Form weld seam; Cup or the outer side weld of bowl body end opening are positioned at the counterdie top; Be pressed on cup or the bowl body end opening weld joint on inner side soldering tip pressure: 0.3～0.6 Mpa, welding machine frequency: 1.5～2.5 KHz, roll welding time: 1～3 s under the rolling-type soldering tip;

F), cup or bowl body wiredrawn edge are shaped: on crimping machine, cup or the bowl body crimping that carries out suitable for reading are shaped.

The present invention adopts the supersonic welding connection technology, need not smear thermosol, has the welding region easy temperature control, does not damage the printing figure message of product, and speed of welding is fast, and energy consumption is low, and efficient is high, and keeps equipment cleaning, improves the advantage of packaging for foodstuff security.

Description of drawings

Fig. 1 is the making flow chart of papery packing container of the present invention.

The specific embodiment

Embodiment

Connect supersonic welder: at first the transducer of supersonic welder is connected on the rolling-type soldering tip of the latasuture soldering tip of making the cup make-up machine and cup end roller head machine;

Consult Fig. 1, the manufacture craft of papery packing container of the present invention comprises: make container sheet stock, welding cup latasuture, cup flanging, the shaping of the cup end, welding cup and cup base ring seam and the shaping of cup wiredrawn edge.

The making step of papery packing container of the present invention is following:

A), make sheet stock:, on blanker, make the fan-shaped sheet stock and the circular sheet stock at the cup end of cup by the figure paper size;

B), welding cup latasuture: on the cup make-up machine; The cup sheet stock is crimped onto on the counterdie; Become the cone tubular, the dual-side of the fan-shaped sheet stock of overlap joint cup forms weld seam; The latasuture soldering tip presses down weld seam, soldering tip pressure from the counterdie outside: 0.3 Mpa, welding machine frequency: 1.5 KHZ, pressure welding time: 0.5s;

C), cup flanging: on the cup make-up machine, the cup end opening is implemented flanging;

D), the cup end, be shaped: on make-up machine at the bottom of the cup, to the folding vertical edges of the circumference of circular sheet stock at the bottom of the cup, make its one-tenth discoid;

E), welding cup and cup base ring seam: on roller head machine at the bottom of the cup, cup is set on the rotation die body, the cup end, place in the cup end opening; Cup end opening flanging is carried out reflexed; Vertical edges at the bottom of making glass is wrapped in the cup end opening flanging, forms weld seam, and the outer side weld of cup end opening is positioned at the counterdie top; Be pressed on the cup end opening weld joint on inner side soldering tip pressure under the rolling-type soldering tip: 0.5 Mpa, welding machine frequency: 2.0 KHZ, roll welding time: 2.5 s;

F), the cup wiredrawn edge is shaped: on crimping machine, the cup crimping that carries out suitable for reading is shaped, the papery cup-like containers is made and is finished.

The present invention on the cup make-up machine, is crimped onto the cup sheet stock on the counterdie when welding cup latasuture; Become the cone tubular, the dual-side of the fan-shaped sheet stock of overlap joint cup forms weld seam; The latasuture soldering tip presses down weld seam from the counterdie outside, indicates cup and gets into welding post, the starting of oscillation of detection signal control supersonic welder; High-frequency electrical energy outputs on the transducer of latasuture soldering tip, and transducer converts electric energy to vibration mechanical energy, vibration mechanical energy is delivered to the weld seam of cup through the latasuture soldering tip; Make the polyethylene film layer fusion of cardboard, and under the pressure effect of latasuture soldering tip and counterdie, make the weld seam pressing, realize the purpose of cup latasuture welding.

When the present invention stitches with the cup base ring at the welding cup, on roller head machine at the bottom of the cup, cup is set on the rotation die body; Cup places in the cup end opening at the end, and cup end opening flanging is carried out reflexed, and the vertical edges at the bottom of making glass is wrapped in the cup end opening flanging; Form girth joint, be pressed under the rolling-type soldering tip on the cup end opening weld joint on inner side, indicate cup and get into welding post with the cup end; The starting of oscillation of detection signal control supersonic welder, high-frequency electrical energy outputs on the transducer of rolling-type soldering tip, and transducer converts electric energy to vibration mechanical energy; Through the rolling-type soldering tip vibration mechanical energy is delivered on the cup and the weld seam at the cup end; Make the polyethylene film layer fusion of cardboard, at this moment, cup together with cup at the bottom of in the driving of rotation die body one week of rotation down; And under the pressure effect of rolling-type soldering tip and counterdie, make weld seam pointwise pressing, realize a cup and glass purpose of base ring seam welding.

Claims

1. one kind with the preparation method of ultrasonic bonding food with the papery packing container, and this method is used to be covered with the plate made of paper of polyethylene film layer, it is characterized in that this method comprises the manufacture craft that connects supersonic welder and papery packing container:

Said connection supersonic welder is: the transducer of supersonic welder is connected on the latasuture soldering tip and rolling-type soldering tip of making papery forming package container machine;

The manufacture craft of said papery packing container may further comprise the steps:

A), make sheet stock

On blanker, make the fan-shaped sheet stock and the circular sheet stock at the cup end or the bowl end of shaping cup or bowl body;

B), welding cup or bowl side seam

On make-up machine, cup or bowl body sheet stock are crimped onto on the counterdie, become the cone tubular; The overlap joint dual-side; Form weld seam, the latasuture soldering tip presses down weld seam, soldering tip pressure from the counterdie outside: 0.25～0.4 Mpa, welding machine frequency: 1.5～2.0 KHz, pressure welding time: 0.5～1 s;

C), cup or bowl body flanging

On make-up machine, cup or bowl body end opening are implemented flanging;

D), the cup end or the bowl end, are shaped

On make-up machine, the folding vertical edges of circumference to the circular sheet stock at the bottom of the cup or the bowl end makes its one-tenth discoid;

E), the circumferential weld at welding cup or bowl body and the cup end or the bowl end

On make-up machine; Cup or bowl body are set on the rotation die body; The cup end or the bowl end, place in cup or the bowl body end opening; Cup or bowl body end opening flanging are carried out reflexed; At the bottom of making glass or the vertical edges at the bowl end be wrapped in cup or the bowl body end opening flanging, form weld seam, cup or the outer side weld of bowl body end opening are positioned at the counterdie top; Be pressed on cup or the bowl body end opening weld joint on inner side soldering tip pressure: 0.3～0.6 Mpa, welding machine frequency: 1.5～2.5 KHz, roll welding time: 1～3 s under the rolling-type soldering tip;

F), cup or bowl body wiredrawn edge are shaped

On crimping machine, cup or the bowl body crimping that carries out suitable for reading are shaped.