CN108357732B - High-frequency induction heating mechanism - Google Patents
High-frequency induction heating mechanism Download PDFInfo
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- CN108357732B CN108357732B CN201810259530.6A CN201810259530A CN108357732B CN 108357732 B CN108357732 B CN 108357732B CN 201810259530 A CN201810259530 A CN 201810259530A CN 108357732 B CN108357732 B CN 108357732B
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- inductor
- forming ring
- support
- paper tube
- tube
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
- B65B51/227—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by induction welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Package Closures (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
Abstract
A high-frequency induction heating mechanism is applied to longitudinal sealing of paper tube wrapping materials and comprises a high-frequency generator, a transformer, an inductor, a bracket, a filling tube and a forming ring; a plurality of rollers which are uniformly distributed in the circumferential direction are arranged on the inner side of the forming ring, an elastic sheet is arranged at one end of the perfusion tube, and a pressing wheel is arranged at the tail end of the elastic sheet; the high-frequency heating device is characterized in that the high-frequency generator is connected with the transformer through a coaxial cable, the transformer is connected with the inductor through a bus, the inductor is mounted on the support, the end face of the outer side of the forming ring is vertically connected with the support, the inductor is positioned on the outer side of the inner ring of the forming ring and is parallel to the axis of the inner ring, and the filling pipe extends into the inner ring of the forming ring from one side provided with the support along the axis of the forming ring.
Description
Technical Field
The invention relates to the technical field of packaging material processing, in particular to a high-frequency induction heating mechanism.
Background
The technology of the present aseptic composite paper packaging and filling machine is generally to roll the rolled packing material into a tube shape and fill the product in the paper tube, but the longitudinal sealing of the packing material of the paper tube by the existing equipment is to heat seal the opening of the paper tube by hot air heating, but the mode of external contact heating is easy to burn the packing material, the rejection rate is not improved, the continuous production is stopped, the production efficiency is reduced, and the short hot air heating is: the external hot-touch heating mode is heating from outside to inside, the requirement on the PE film material on the outer surface of the packing material is high, the energy consumption is high, the efficiency is low, the temperature control is complex, and the requirement on an external air source is high.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a stable and reliable high-frequency induction heating mechanism for longitudinally sealing a paper tube packaging material.
The invention is realized by the following technical scheme:
a high-frequency induction heating mechanism is applied to longitudinal sealing of paper tube wrapping materials and comprises a high-frequency generator, a transformer, an inductor, a bracket, a filling tube and a forming ring; a plurality of rollers which are uniformly distributed in the circumferential direction are arranged on the inner side of the forming ring, an elastic sheet is arranged at one end of the perfusion tube, and a pressing wheel is arranged at the tail end of the elastic sheet; the high-frequency generator is connected with the transformer through a coaxial cable, the transformer is connected with the inductor through a bus, the inductor is installed on the support, the end face of the outer side of the forming ring is vertically connected with the support, the inductor is positioned on the outer side of the inner ring of the forming ring and is parallel to the axis of the inner ring, the pouring pipe extends into the inner ring of the forming ring from one side provided with the support along the axis of the forming ring, and the position relation of a pressing wheel on the pouring pipe corresponds to the position relation of a roller on the forming ring; the paper tube is coiled outside the filling tube and conveyed towards the forming ring direction, the opening position of the paper tube is aligned with the inductor, the inductor forms a high-frequency alternating electromagnetic field around the paper tube through the high-frequency generator and the transformer, when an aluminum foil layer on the paper tube is heated through the high-frequency alternating electromagnetic field generated by the inductor and is in a molten state, the pressing wheel on the filling tube generates pressing force towards the roller through the elastic sheet, and the pressing wheel and the roller are matched to press and paste packing materials in the molten state at the opening position on the paper tube together to complete the process of longitudinal sealing.
As an improvement of the scheme, the device also comprises a cylinder, a connecting rod assembly, a guide rail and a pulley; the pulley install the support on, the guide rail setting in the outside of support and the direction with the axis of shaping ring parallel, the support pass through the pulley installation and set up on the guide rail, link assembly one end connect the actuating lever of cylinder, the other end and leg joint, the cylinder pass through link assembly drive the support carry out linear reciprocating motion on the guide rail.
According to the production demand, by PLC control cylinder action, then the cylinder drives the pivot and rotates, makes the support do upward or downstream along two guide rails through 4 pulleys, and this action is once only before production, and the purpose is that the heating is suspended midway after last heating or shut down and the wrapping material of not pressfitting, prevents not gluing.
As an improvement of the scheme, the bracket is provided with a mounting seat, and the mounting seat comprises an adjusting shaft, an adjusting seat and an arc-shaped arm; the arc arm be equipped with the arc hole that is used for angle modulation, the arc arm install on the support with the shaping ring is parallel, regulating spindle screw in adjust the seat on and can carry out axial position and adjust, the regulation seat install on the arc hole of arc arm, the regulating spindle stretch out the one end of adjusting the seat and orientation filling pipe and install the inductor, the distance of axis position control inductor and paper pipe through adjusting the regulating spindle.
As an improvement of the scheme, the arc-shaped arm is hinged on the bracket, and the inductor can be far away from the perfusion tube by shifting the arc-shaped arm towards one side departing from the perfusion tube.
When paper is threaded, a nut pressing the arc-shaped arm can be loosened, and the arc-shaped arm can be opened by one piece at the moment, so that the inductor rotates to an angle along with the arc-shaped arm, and the purpose of facilitating paper threading for the first time and other maintenance work is achieved.
As an improvement of the scheme, paper protection wheels are arranged above and below one side of the bracket facing the perfusion tube.
As an improvement of the scheme, the distance between the inductor and the surface of the paper tube is 1-2 mm.
The invention has the following beneficial effects:
1. non-contact heating is adopted, so that the packaging material can be effectively prevented from being burnt.
2. The heating mechanism has the advantages of high efficiency, energy conservation, environmental protection, safety, high heating speed and strong controllability.
3. The induction heating head designed according to the skin effect and proximity effect principle of the high-frequency current has the characteristic of heating with a specified local emphasis, and has a wide processing application range.
Drawings
Fig. 1 is a schematic perspective view of a heating mechanism according to the present invention.
Fig. 2 is a schematic perspective view of the heating mechanism of the present invention with the paper tube removed.
Fig. 3 is a schematic perspective view of the other side of the heating mechanism of the present invention for removing the paper tube.
Fig. 4 is a transverse sectional view of the heating mechanism of the present invention at a paper tube processing position.
Fig. 5 is a vertical sectional view of the paper tube processing position by the heating mechanism of the present invention.
Description of reference numerals: the device comprises a high-frequency generator 1, a transformer 2, an inductor 3, a bracket 4, a filling pipe 5, a forming ring 6, a cylinder 7, a connecting rod assembly 8, a guide rail 9, a pulley 10, a roller 11, an elastic sheet 12, a pressing wheel 13, a paper pipe 14, a mounting seat 15, an adjusting shaft 16, an adjusting seat 17, an arc-shaped arm 18 and an arc-shaped hole 19.
Detailed Description
As shown in fig. 1 to 5, a high-frequency induction heating mechanism is applied to longitudinally sealing a paper tube 14 wrapping material, and comprises a high-frequency generator 1, a transformer 2, an inductor 3, a bracket 4, a pouring tube 5, a forming ring 6, a cylinder 7, a connecting rod assembly 8, a guide rail 9 and a pulley 10; a plurality of rollers 11 which are uniformly distributed in the circumferential direction are arranged on the inner side of the forming ring 6, an elastic sheet 12 is arranged at one end of the pouring pipe 5, and a pressing wheel 13 is arranged at the tail end of the elastic sheet 12; the high-frequency generator 1 is connected with the transformer 2 through a coaxial cable, the transformer 2 is connected with the inductor 3 through a bus, the inductor 3 is installed on the bracket 4, the outer end face of the forming ring 6 is vertically connected with the bracket 4, the inductor 3 is positioned on the outer side of the inner ring of the forming ring 6 and is parallel to the axis of the inner ring, the perfusion tube 5 extends into the inner ring of the forming ring 6 from one side provided with the bracket 4 along the axis of the forming ring 6, and a pressure wheel 13 on the perfusion tube 5 corresponds to a position relation of a roller 11 on the forming ring 6; the paper tube 14 is covered outside the filling tube 5 by rolling and is conveyed towards the direction of the forming ring 6, the opening position of the paper tube 14 is aligned with the inductor 3, the inductor 3 forms a high-frequency alternating electromagnetic field around the inductor 3 through the high-frequency generator 1 and the transformer 2, when an aluminum foil layer on the paper tube 14 is heated and in a molten state through the high-frequency alternating electromagnetic field generated by the inductor 3, the pressing wheel 13 on the filling tube 5 generates a pressing force towards the roller 11 through the elastic sheet 12, and the pressing wheel 13 and the roller 11 are matched to press and paste packing materials in the molten state at the opening position on the paper tube 14 together to complete a longitudinal sealing process. Pulley 10 install support 4 on, guide rail 9 set up in the outside of support 4 and the direction with the axis of shaping ring 6 parallel, support 4 set up on guide rail 9 through pulley 10 installation, 8 one end of link assembly connect the actuating lever of cylinder 7, the other end is connected with support 4, cylinder 7 drive through link assembly 8 support 4 carry out linear reciprocating motion on guide rail 9. The bracket 4 is provided with a mounting seat 15, and the mounting seat 15 comprises an adjusting shaft 16, an adjusting seat 17 and an arc-shaped arm 18; arc arm 18 be equipped with the arc hole 19 that is used for angle modulation, arc arm 18 and shaping ring 6 install on support 4 parallelly, regulating spindle 16 screw in adjust on the seat 17 and can carry out axial position and adjust, the arc hole 19 of adjusting seat 17 installation at arc arm 18, regulating spindle 16 stretch out and adjust seat 17 and install towards the one end of pouring tube 5 inductor 3, the distance of axis position control inductor 3 and paper tube 14 through adjusting regulating spindle 16. The arc-shaped arm 18 is hinged on the bracket 4, and the inductor 3 can be far away from the perfusion tube 5 by shifting the arc-shaped arm 18 towards one side departing from the perfusion tube 5. Paper-protecting wheels 19 are arranged above and below one side of the bracket 4 facing the perfusion tube 5. The distance between the inductor 3 and the surface of the paper tube 14 is 1-2 mm.
According to the production demand, the PLC controls the cylinder 7 to act, then the cylinder 7 drives the rotating shaft to rotate, so that the support 4 moves upwards or downwards along the two guide rails 9 through the 4 pulleys 10, the action is only once before production, and the purpose is to heat the packaging material which is not pressed after the last heating, and prevent the packaging material from being not adhered. The nut pressing the arc-shaped arm 18 can be loosened during paper threading, and the arc-shaped arm 18 can be opened so that the inductor 3 rotates to an angle along with the arc-shaped arm 18, so that the paper threading for the first time and other maintenance work are facilitated.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. A high-frequency induction heating mechanism is characterized in that the heating mechanism is applied to longitudinal sealing of paper tube wrapping materials and comprises a high-frequency generator, a transformer, an inductor, a bracket, a filling tube and a forming ring; a plurality of rollers which are uniformly distributed in the circumferential direction are arranged on the inner side of the forming ring, an elastic sheet is arranged at one end of the perfusion tube, and a pressing wheel is arranged at the tail end of the elastic sheet; the high-frequency generator is connected with the transformer through a coaxial cable, the transformer is connected with the inductor through a bus, the inductor is installed on the support, the end face of the outer side of the forming ring is vertically connected with the support, the inductor is positioned on the outer side of the inner ring of the forming ring and is parallel to the axis of the inner ring, the pouring pipe extends into the inner ring of the forming ring from one side provided with the support along the axis of the forming ring, and the position relation of a pressing wheel on the pouring pipe corresponds to the position relation of a roller on the forming ring; the paper tube is coiled outside the filling tube and is conveyed towards the direction of the forming ring, the opening position of the paper tube is aligned with the inductor, the inductor forms a high-frequency alternating electromagnetic field around the paper tube through a high-frequency generator and a transformer, when an aluminum foil layer on the paper tube is heated through the high-frequency alternating electromagnetic field generated by the inductor and is in a molten state, a pressing wheel on the filling tube generates pressing force towards a roller through an elastic sheet, and the pressing wheel and the roller are matched to press and paste packing materials in the molten state at the opening position on the paper tube together to complete the process of longitudinal sealing; the bracket is provided with a mounting seat, and the mounting seat comprises an adjusting shaft, an adjusting seat and an arc-shaped arm; the device comprises an arc arm, a forming ring, an adjusting shaft, an inductor and a paper tube, wherein the arc arm is provided with an arc hole for angle adjustment, the arc arm and the forming ring are arranged on a bracket in parallel, the adjusting shaft is screwed into an adjusting seat and can be axially adjusted, the adjusting seat is arranged on the arc hole of the arc arm, the end of the adjusting shaft, which extends out of the adjusting seat and faces the pouring tube, is provided with the inductor, and the distance between the inductor and the paper tube is controlled by adjusting the axial position of the adjusting shaft; the arc arm hinge on the support, stir the arc arm through deviating from the one side that fills the pipe towards, can make the inductor keep away from filling the pipe.
2. The high-frequency induction heating mechanism according to claim 1, further comprising a cylinder, a link assembly, a guide rail, a pulley; the pulley install the support on, the guide rail setting in the outside of support and the direction with the axis of shaping ring parallel, the support pass through the pulley installation and set up on the guide rail, link assembly one end connect the actuating lever of cylinder, the other end and leg joint, the cylinder pass through link assembly drive the support carry out linear reciprocating motion on the guide rail.
3. The high-frequency induction heating mechanism according to claim 1, wherein paper-protecting wheels are provided above and below the side of the support facing the filling pipe.
4. A high-frequency induction heating mechanism according to any one of claims 1 to 3, wherein said inductor is spaced from the surface of the paper tube by 1 to 2 mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810259530.6A CN108357732B (en) | 2018-03-27 | 2018-03-27 | High-frequency induction heating mechanism |
Applications Claiming Priority (1)
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CN201810259530.6A CN108357732B (en) | 2018-03-27 | 2018-03-27 | High-frequency induction heating mechanism |
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CN108357732A CN108357732A (en) | 2018-08-03 |
CN108357732B true CN108357732B (en) | 2020-10-09 |
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CN201810259530.6A Active CN108357732B (en) | 2018-03-27 | 2018-03-27 | High-frequency induction heating mechanism |
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Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2653753C2 (en) * | 1976-11-26 | 1986-04-17 | Robert Bosch Gmbh, 7000 Stuttgart | Device for producing a packaging tube from a packaging material web by welding the edge areas |
SE503486C2 (en) * | 1995-01-10 | 1996-06-24 | Tetra Laval Holdings & Finance | Moving device for performing continuous longitudinal joint welding on a packaging material web |
ITTO20030238A1 (en) * | 2003-03-28 | 2004-09-29 | Tetra Laval Holdings & Finance | USABLE INDUCTION WELDING DEVICE AND METHOD |
EP2143643A1 (en) * | 2008-07-11 | 2010-01-13 | Tetra Laval Holdings & Finance SA | Packaging machine for producing sealed packages of a food product |
EP2520416B9 (en) * | 2011-05-05 | 2014-04-23 | Tetra Laval Holdings & Finance S.A. | Induction sealing device for heat sealing packaging material for producing sealed packages of pourable food products |
CN205738359U (en) * | 2016-05-04 | 2016-11-30 | 利乐集美机械股份有限公司 | A kind of longitudinal sealing guide wheel mechanism of package packing machine |
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2018
- 2018-03-27 CN CN201810259530.6A patent/CN108357732B/en active Active
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