CN101195421A

CN101195421A - Sealing device and packing machine having the same

Info

Publication number: CN101195421A
Application number: CNA2006101640655A
Authority: CN
Inventors: 陈宜均; 邓坤升
Original assignee: KANGNAXIANG ENTERPRISE CO Ltd
Current assignee: KANGNAXIANG ENTERPRISE CO Ltd
Priority date: 2006-12-06
Filing date: 2006-12-06
Publication date: 2008-06-11

Abstract

A seal device is used to enclose packages. The packages can be transferred along a delivery direction, and the seal device comprises a base, a first frame body, an electric knife and an inlet element. The base includes a contact face with an open portion, the first frame body and the contact face of the base are in interval arrangement, the packages are arranged between the first frame body and the contact face of the base, the first frame body can alternatively move along the moving direction between the position of near the base and the position of far form the base, the outline of the longitudinal section of the electric knife is in the form of non-level condition, the inlet element is equipped near the contact face of the base and is communicated with the open portion. When the electric knife approaches to the base, one end of the packages can be hot melted, enclosed and cut, and the left edge can be inlet by the inlet element.

Description

Closing device and have the wrapping machine of this closing device

Technical field

The present invention relates to a kind of wrapping machine, particularly relate to a kind of wrapping machine of absorbing the surplus limit of packing with closing device.

Background technology

As shown in Figure 1, the closing device 1 of general wrapping machine, usually comprise the upper frame 12 that a heating wire 11 and a correspondence are arranged at heating wire 11 tops, by means of first load-transfer device 14 the continuous bag 101 of a plastic material is sent to 12 of heating wire 11 and upper frames, this upper frame 12 moves down and presses down continuous bag 101 by means of the driving of cylinder (figure do not show), makes heating wire 11 and bags 101 contacts and to its hot melt and seal continuously.Then, by means of the cutting knife 13 that is arranged at intervals at one segment distance place, the upper frame 12 rears bag 101 parts cutting formation one monolateral packaging bag of sealing 102 continuously.

Plastic material is when contacting with heating wire 11; because of the hot melt relation can make plastics stick in easily on heating wire 11 or the upper frame 12 usually; upper frame 12 bottoms shown in Fig. 1 are horizontal; its area of contact with continuous bag 101 is big; if not constantly with the labor cleaning; in case after many places are stained with and have been sticked plastics on heating wire 11 or the upper frame 12, can't continue successfully to carry out hot melt, cause production on-line operation personnel's puzzlement.

In addition, above-mentioned closing device 1 another shortcoming is that cutting knife 13 is arranged at intervals at upper frame 12 rears one segment distance, bag 101 is monolateral continuously seals and by cutting knife 13 severings when heating wire 11, this packaging bag 102 seal the back its end can be formed with one surplus the limit, when the packaging bag 102 of numerous content product (figure does not show) places the rack (scheming not show) of sales field when going up, described surplus limit often causes integral body not attractive in appearance, shows the space that remains to be improved.

Summary of the invention

A purpose of the present invention is to provide a kind of and can carries out the neat closing device of sealing operation and sealing part continuously.

Another object of the present invention is to provide a kind of and can carries out the neat wrapping machine with closing device of sealing operation and sealing part continuously.

So the present invention has the wrapping machine of closing device, in order to one made and carry out seal package along the packaging bag that a throughput direction is transmitted by the hot melt material, wrapping machine comprises a conveying mechanism, and a closing device.

Conveying mechanism is advanced along throughput direction in order to transport package, and closing device comprises a pedestal, one first support body, an electrical knife and a sucker mechanism.Pedestal is adjacent to conveying mechanism, and pedestal comprises a parallel throughput direction and offers the contact surface of a peristome.The contact surface of first support body and pedestal is provided with at intervals, and packaging bag is positioned between the contact surface and first support body, first support body can along the sense of motion of a vertical transport direction one near base position and away from base position between crank motion.Electrical knife is arranged at first support body and corresponding to a side of pedestal contact surface, and can be with the first support body crank motion, and the profile profile of electrical knife is non-horizontal at the blade place.Sucker mechanism is adjacent to pedestal and is connected with peristome, and sucker mechanism can provide a suction that keeps away oral area.Electrical knife can with an end heat sealing and the cutting of packaging bag, and make the remaining surplus limit of cutting be sucked by this sucker mechanism near base position the time.

Closing device also comprises second support body that is adjacent to first support body and is provided with separately with the contact surface of pedestal, and one be arranged at second support body and corresponding to the cutting knife of a side of pedestal contact surface, second support body can drive cutting knife along sense of motion one near base position and away from base position between crank motion.The profile profile of electrical knife, the place is curved at blade, and cutting knife comprises a plurality of terminal double wedges that are arranged at.

The contact surface of pedestal has an end, of going into that enters for packaging bag and is positioned at the end opposite side and is defined in peristome and goes out between end and with electrical knife cooresponding first one for the end, that goes out of packaging bag output, and one be defined in peristome and go into to hold between and with cutting knife cooresponding second one.Closing device comprises that also one is covered on first one thermal insulation sheet, and the thermal insulation sheet is the silica gel sheet of an anti-glutinous effect.

Sucker mechanism comprises a suction tube that is installed on the pedestal side and is connected with peristome.Closing device comprises also that a framework, that is arranged at pedestal top is arranged at and can drive reciprocating first moving cell of first support body, on the framework and be arranged on the framework and be positioned at first moving cell, one side and can drive reciprocating second moving cell of second support body.First moving cell can order about electrical knife and pump in a very first time with respect to pedestal, pumps in second time of a delay interval after the very first time with respect to pedestal and second moving cell can order about cutting knife.

First, second moving cell is respectively an air cylinder, first moving cell comprises that one is arranged at first cylinder body on the framework, the opposite side of first support body engages with first cylinder body, second moving cell comprises that one is arranged at second cylinder body on the framework, the opposite side of second support body engages with second cylinder body, and closing device also comprises one in order to order about the CD-ROM drive motor of first support body and the second support body start.First, second moving cell is respectively an air cylinder, first moving cell comprises that one is arranged at first cylinder body on the framework, the opposite side of first support body engages with first cylinder body, second moving cell comprises that one is arranged at second cylinder body on the framework, the opposite side of second support body engages with second cylinder body, and closing device also comprises one in order to order about the CD-ROM drive motor of first support body and the second support body start.

Wrapping machine also comprises one first conveying mechanism and one second conveying mechanism, this first conveying mechanism comprises the roller of two mutual butts and direction of rotation, this second conveying mechanism comprises a load-transfer device that trims with the contact surface of this pedestal, and this pedestal is arranged between this first, second conveying mechanism.

The beneficial effect that the present invention has the wrapping machine of closing device is, in the sealing operation of closing device, by means of the thermal insulation sheet that pastes at the contact surface of pedestal, and the curved edge design of the terminal blade of electrical knife, can prevent that the packaging bag after monolateral the sealing from pasting on the contact surface and electrical knife of pedestal, and not produce surplus limit behind the packaging bag enclosing.

Description of drawings

Below in conjunction with drawings and Examples the wrapping machine that the present invention has closing device is elaborated:

Fig. 1 is a scheme drawing of the closing device of general wrapping machine.

Fig. 2 is a lateral plan of the preferred embodiment of the wrapping machine of the present invention with closing device.

Fig. 3 is a partial enlarged drawing of the closing device of this preferred embodiment.

Fig. 4 is a cross-sectional schematic of being got along the straight line IV-IV among Fig. 3.

Fig. 5 is the front elevation that the electrical knife of this preferred embodiment is arranged at the first support body bottom of one first moving cell.

Fig. 6 is a partial enlarged drawing of the electrical knife of this preferred embodiment.

Fig. 7 is the front elevation that the cutting knife of this preferred embodiment is arranged at the second support body end of one second moving cell.

Fig. 8 is the cross-sectional schematic that is similar to Fig. 4, first support body and second support body is shown respectively at an initial position.

Fig. 9 is the cross-sectional schematic that is similar to Fig. 4, first support body is shown moves down into a sealing-in position in the very first time along second direction, and second support body is at initial position.

Figure 10 is the cross-sectional schematic that is similar to Fig. 4, first support body is shown in the sealing-in position, cuts the position and second support body moves down into one in second time along second direction.

Figure 11 is a front elevation of another closing device of this preferred embodiment.

Figure 12 is a schematic side view of this another closing device of this preferred embodiment.

Figure 13 is a schematic side view that is similar to Figure 12, and the first support body top and the mutual butt of base bottom are shown, and packaging bag electric heating is sealed.

The specific embodiment

About aforementioned and other technology contents, characteristics and effect of the present invention, in the detailed description of a preferred embodiment of following cooperation reference diagram, can clearly understand.

As shown in Figures 2 and 3, the present invention has a preferred embodiment of the wrapping machine of closing device, be with wrapping machine 200 packing cotton wool pad explanations, yet package object is not certainly as limit.Wrapping machine 200 comprises one first conveying mechanism 2, one second conveying mechanism 3, and a closing device 4 that is arranged at 2,3 of first, second conveying mechanisms.

First conveying mechanism 2 comprises the roller 21 of two mutual butts and direction of rotation, two rollers 21 are in order to transmit a wrapping continuous bag 5 to closing device 4 places, but bag 5 is made by any hot melt materials such as plastics continuously, and 3 of second conveying mechanisms comprise that one is positioned at the load-transfer device 31 in closing device 4 the place aheads.

Closing device 4 comprises that one is positioned at the pedestal 41 of 3 of first conveying mechanism 2 and second conveying mechanisms, an and inverted U framework 42 that is arranged on the pedestal 41, as shown in Figure 4, the contact surface 410 of pedestal 41 has that the position, butt place of one and two rollers 21 is corresponding goes into end 411, and load-transfer device 31 positions of one and second conveying mechanism 3 are corresponding goes out end 412, and the contact surface 410 of pedestal 41 offers one and is positioned at into end 411 and goes out to hold 412 elongated opening portion 413.Therefore pedestal 41 comprises that one is defined in second one 415 that peristome 413 is defined in peristome 413 with first one 414, one that goes out 412 at end and goes into to hold 411, and one be covered on first one 414 of this pedestal 41 and be the thermal insulation sheet 416 of silica gel material, thus, the load-transfer device 31 of the butt place of the contact surface 410 of this pedestal 41 and two rollers 21 and second conveying mechanism 3 copline in fact.Two rollers 21 can be with continuous bag 5 to be sent on the pedestal 41 of closing device 4 just like the throughput direction I shown in the arrow among Fig. 4.

Closing device 4 also comprises a kinematic mechanism 43, an electrical knife 44 and a cutting knife 45, this kinematic mechanism 43 comprises that one is arranged on the framework 42 and first moving cell 431 that goes out end 412 of contiguous pedestal 41, and one is arranged on the framework 42 and second moving cell 432 of going into end 411 of contiguous pedestal 41.As Fig. 3, Fig. 4 and shown in Figure 5, first, second moving cell 431,432 is respectively an air cylinder and structure is suitable, first moving cell 431 has two first cylinder bodies 433 that are convexly set in framework 42 end faces, and first support body 434 that is engaged in first cylinder body, 433 belows movably, electrical knife 44 is locked in first support body, 434 bottoms, and blade 441 correspondences of electrical knife 44 are positioned at first one 414 top of pedestal 41, and blade 441 ends see it is curved by profile.Consult Fig. 3, Fig. 4 and shown in Figure 7 simultaneously, second moving cell 432 has two second cylinder bodies 435 that are convexly set on the framework 42 equally, and second support body 436 that is engaged in second cylinder body, 435 belows, and cutting knife 45 is locked in these second support body, 436 bottoms and corresponding to second one 415 top of pedestal 41, and this cutting knife 45 has a plurality of be arranged at terminal and double wedges 451 adjacent one another are.

As shown in Figures 3 and 4, first support body 434 and second support body 436 can be arranged at CD-ROM drive motor 437 drives of second conveying mechanism, 3 sides and make crank motion up and down with respect to framework 42 edges just like the sense of motion II vertical with throughput direction I shown in the arrow among Fig. 4 by one.In addition, closing device 4 comprises that also one is installed on the sucker mechanism 46 of pedestal 41 sides, this sucker mechanism 46 is connected with the peristome 413 of pedestal 41 by a suction tube 461, in order to absorb the surplus limit that continuous bag 5 fusing backs are produced, this suction tube 461 is air-breathing to peristome 413 by a high pressure pump (figure does not show), makes this peristome 413 produce a downward suction.

As Fig. 4, Fig. 8, Fig. 9 and shown in Figure 10, closing device 4 is when start, two rollers 21 of first conveying mechanism 2 can be earlier continuously bag 5 carry and by after the going into end 411 and go out end 412 of pedestal 41 along throughput direction I, the front end of continuous bag 5 is positioned on the load-transfer device 31 of second conveying mechanism 3, the sealing part for the treatment of of bag 5 then rests on the contact surface 410 of pedestal 41 continuously, then order about first support body 434 and be displaced downwardly to a sealing-in position by an initial position along sense of motion II when the very first time by means of CD-ROM drive motor 437 (Fig. 3), when arriving this sealing-in position, the electrical knife 44 of first support body, 434 bottoms can with continuous bag 5 butts on the contact surface 410 of pedestal 41, and make continuous bag 5 be subjected to electrical knife 44 hot melts and reach monolateral action of sealing.

When first support body 434 temporary transient stagnation after the very first time moves down, second support body 436 can be moved downward to one by an initial position in second time of delay interval after the very first time and cut the position, when arriving this, second support body 436 cuts the position, continuous bag 5 butts on the cutting knife 45 of second support body, 436 bottoms and the contact surface 410 of pedestal 41 and by means of double wedge 451 (Fig. 7) bag 5 cuttings continuously, and during continuous bag 5 butts of the blade 441 of electrical knife 44 and pedestal 41 end faces because of little with continuous bag 5 area of contact, bag 5 cuttings continuously simultaneously, therefore this electrical knife 44 can be inhaled in the suction tube 461 (Fig. 3) via peristome 413 on limit 51 surplus one under cutting on the continuous bag 5 with cutting knife 45, simultaneously, continuously bag 5 parts promptly are cut and form one and be positioned on the load-transfer device 31 of second conveying mechanism 3 and in order to the packaging bag 52 (Fig. 3) of packing cotton wool pad, promptly finish this moment from continuous bag 5 cutting packaging bags 52 and action that its monolateral electric heating is sealed.

In addition,

first support body

434 and 436 of second support bodys that move down into the sealing-in position respectively and cut the position can reset to initial position, with cutting and monolateral the sealing of proceeding next packaging bag 52.Packaging bag 52 after this monolateral sealing can be sent to the next workstation (figure does not show) of wrapping machine 200 and pack the action of (figure does not show) of cotton wool pad, and closing device 4 can repeat the cutting and monolateral the sealing of next packaging bag 52.

As Fig. 2, Figure 11, Figure 12 and shown in Figure 13, wrapping machine 200 also comprises another closing device 40 that is arranged at closing device 4 belows, this closing device 40 is identical with the start principle of closing device 4, but have only electrical knife 473 and do not have the configuration of cutting knife, and pedestal 472 is slightly different with the relative motion pattern of first support body 471.Closing device 40 is in order to carry out sealing of another open end to the packaging bag 52 of inside ccontaining multi-disc cotton wool pad 50, this closing device 40 comprises that a pedestal 47, the first support bodys 471 and pedestal 472 are arranged on the pedestal 47 respectively and can reach in opposite directions and mutually liftoffly move with respect to pedestal 47 in a ground on next respectively.The contact surface of first support body, 471 end faces and pedestal 472 is covered with a thermal insulation sheet 474 respectively, and first support body, 471 inside are provided with that a part runs through and the electrical knife 473 that exposes corresponding thermal insulation sheet 474.When pushing material component (figure does not show) is passed cotton wool pad 50 to packaging bag 52 and is made packaging bag 52 place on the load-transfer device 48, first support body 471 and pedestal 472 can reach up respectively down and move, when the electrical knife 473 of first support body, 471 end faces during with pedestal 472 contact surface butts, can melt the open end heat of packaging bag 52 and seal and surplus limit (figure does not show) is cut, simultaneously, the suction tube 475 of pedestal 472 sides can siphon away surplus limit, promptly finishes sealing of packaging bag 52 another open ends.

Special version be, cutting knife 45 (Fig. 4) configuration of closing device 4, be for behind the end closure that makes packaging bag 52, bag 5 (Fig. 3) still maintain an open end continuously, so that next packaging bag has an open end that supplies cotton wool pad 50 to insert after sealing, closing device 40 then is for interior packaging bag 52 open ends of adorning cotton wool pad 50 being sealed, therefore the configuration of cutting knife need not being arranged.

In the sealing operation of closing device 4, owing to be covered with anti-glutinous thermal insulation sheet 416 on first one 414 of pedestal 41 contact surfaces 410, and, make packaging bag 52 behind the monolateral heat sealing can not paste contact surface 410 at electrical knife 44 or pedestal 41 by means of the design of the curved edge of electrical knife 44 terminal blades 441.In addition, the surplus limit 51 under electrical knife 44 and cutting knife 45 cut can be inhaled into the action of doing recovery in the suction tube 461 via peristome 413, and it is dirty and messy to what working environment caused to reduce waste material, and makes the packaging bag 52 after sealing can not produce surplus limit.In addition, by means of the configuration of electrical knife 473 suction tubes 475 of another closing device 40, packaging bag 52 another open ends do not produce surplus limit equally sealing, and make the sealing part of packaging bag 52 can reach the effect of neat appearance.

Conclude above-mentioned, the wrapping machine 200 of present embodiment, in the sealing operation of closing device 4, by means of the thermal insulation sheet 416 that pastes at the contact surface 410 of pedestal 41, and the curved edge of electrical knife 44 terminal blades 441 design, can prevent that the packaging bag 52 after monolateral the sealing from pasting on the contact surface 410 and electrical knife 44 of pedestal 41, and packaging bag 52 does not produce surplus limit after sealing.In addition, another closing device 40 does not produce surplus limit after monolithic bag 52 another sides are sealed, so that the sealing part neat appearance, so can reach purpose of the presently claimed invention really.

Claims

1. closing device, in order to one by the made packaging bag enclosing of hot melt material, this packaging bag can be transmitted along a throughput direction, it is characterized in that:

This closing device comprises:

One pedestal comprises parallel this throughput direction and offers the contact surface of a peristome;

One first support body, be provided with at intervals with the contact surface of this pedestal, and this packaging bag is positioned between this contact surface and this first support body, this first support body can along the sense of motion of vertical this throughput direction one near this base position and away from this base position between crank motion;

One electrical knife is arranged at this first support body and corresponding to a side of this pedestal contact surface, can be with this first support body crank motion, and the profile profile of this electrical knife is non-horizontal at the blade place; And

One sucker mechanism is adjacent to this pedestal and is connected with this peristome, and this sucker mechanism can provide the suction away from this peristome;

This electrical knife can with an end heat sealing and the cutting of this packaging bag, and make the remaining surplus limit of cutting be sucked by this sucker mechanism near this base position the time.

2. closing device as claimed in claim 1, it is characterized in that: also comprise second support body that is adjacent to this first support body and is provided with separately with the contact surface of this pedestal, and one be arranged at this second support body and corresponding to the cutting knife of a side of this pedestal contact surface, this second support body can drive this cutting knife along this sense of motion one near this base position and away from this base position between crank motion.

3. closing device as claimed in claim 1 is characterized in that: the profile profile of this electrical knife, the place is curved at blade.

4. closing device as claimed in claim 2 is characterized in that: this cutting knife comprises a plurality of terminal double wedges that are arranged at.

5. closing device as claimed in claim 2, it is characterized in that: the contact surface of this pedestal has an end, of going into that enters for this packaging bag and is positioned at this and goes into to hold opposite side to be defined in this peristome and to go out between end with this and with this electrical knife cooresponding first one for the end, that goes out of this packaging bag output, and one be defined in this peristome and this go into to hold between and with this cutting knife cooresponding second one.

6. closing device as claimed in claim 5 is characterized in that: also comprise one and be covered on this thermal insulation sheet of first one, this thermal insulation sheet is the silica gel sheet of an anti-glutinous effect.

7. closing device as claimed in claim 1 is characterized in that: this sucker mechanism comprises a suction tube that is installed on this pedestal side and is connected with this peristome.

8. closing device as claimed in claim 2 is characterized in that: also comprise a framework, that is arranged at this pedestal top and be arranged at and can drive reciprocating first moving cell of this first support body, on this framework and be arranged on this framework and be positioned at this first moving cell, one side and can drive reciprocating second moving cell of this second support body.

9. closing device as claimed in claim 8, it is characterized in that: this first moving cell can order about this electrical knife and pump in a very first time with respect to this pedestal, should pump second time after the very first time at a delay interval with respect to this pedestal and this second moving cell can order about this cutting knife.

10. closing device as claimed in claim 9, it is characterized in that: this first, second moving cell is respectively an air cylinder, this first moving cell comprises that one is arranged at first cylinder body on this framework, the opposite side of this first support body engages with this first cylinder body, this second moving cell comprises that one is arranged at second cylinder body on this framework, the opposite side of this second support body engages with this second cylinder body, and this closing device also comprises one in order to order about the CD-ROM drive motor of this first support body and this second support body start.

11. the wrapping machine with closing device in order to one made and carry out seal package along the packaging bag that a throughput direction is transmitted by the hot melt material, is characterized in that:

This wrapping machine comprises:

At least one conveying mechanism is advanced along this throughput direction in order to carry this packaging bag;

One closing device comprises:

One pedestal is adjacent to this conveying mechanism, and this pedestal comprises parallel this throughput direction and offers the contact surface of a peristome;

One electrical knife is arranged at this first support body and corresponding to a side of this pedestal contact surface, and can be with this first support body crank motion, and the profile profile of this electrical knife is non-horizontal at the blade place; And

12. the wrapping machine with closing device as claimed in claim 11, it is characterized in that: this closing device also comprises second support body that is adjacent to this first support body and is provided with separately with the contact surface of this pedestal, and one be arranged at this second support body and corresponding to the cutting knife of a side of this pedestal contact surface, this second support body can drive this cutting knife along this sense of motion one near this base position and away from this base position between crank motion.

13. the wrapping machine with closing device as claimed in claim 11 is characterized in that: the profile profile of this electrical knife, the place is curved at blade.

14. the wrapping machine with closing device as claimed in claim 12 is characterized in that: this cutting knife comprises a plurality of terminal double wedges that are arranged at.

15. the wrapping machine with closing device as claimed in claim 12, it is characterized in that: the contact surface of this pedestal has an end, of going into that enters for this packaging bag and is positioned at this and goes into to hold opposite side to be defined in this peristome and to go out between end with this and with this electrical knife cooresponding first one for the end, that goes out of this packaging bag output, and one be defined in this peristome and this go into to hold between and with this cutting knife cooresponding second one.

16. the wrapping machine with closing device as claimed in claim 15 is characterized in that: this closing device comprises that also one is covered on this thermal insulation sheet of first one, and this thermal insulation sheet is the silica gel sheet of an anti-glutinous effect.

17. the wrapping machine with closing device as claimed in claim 11 is characterized in that: this sucker mechanism comprises a suction tube that is installed on this pedestal side and is connected with this peristome.

18. the wrapping machine with closing device as claimed in claim 12 is characterised in that: this closing device comprises also that a framework, that is arranged at this pedestal top is arranged at and can drive reciprocating first moving cell of this first support body, on this framework and be arranged on this framework and be positioned at this first moving cell, one side and can drive reciprocating second moving cell of this second support body.

19. the wrapping machine with closing device as claimed in claim 18, it is characterized in that: this first moving cell can order about this electrical knife and pump in a very first time with respect to this pedestal, should pump second time after the very first time at a delay interval with respect to this pedestal and this second moving cell can order about this cutting knife.

20. the wrapping machine with closing device as claimed in claim 19, it is characterized in that: this first, second moving cell is respectively an air cylinder, this first moving cell comprises that one is arranged at first cylinder body on this framework, the opposite side of this first support body engages with this first cylinder body, this second moving cell comprises that one is arranged at second cylinder body on this framework, the opposite side of this second support body engages with this second cylinder body, and this closing device also comprises one in order to order about the CD-ROM drive motor of this first support body and this second support body start.

21. the wrapping machine with closing device as claimed in claim 11, it is characterized in that: comprise one first conveying mechanism and one second conveying mechanism, this first conveying mechanism comprises the roller of two mutual butts and direction of rotation, this second conveying mechanism comprises a load-transfer device that trims with the contact surface of this pedestal, and this pedestal is arranged between this first, second conveying mechanism.