CN107010278B

CN107010278B - Heat sealing device of packaging bag

Info

Publication number: CN107010278B
Application number: CN201710385326.4A
Authority: CN
Inventors: 叶见定
Original assignee: Anqing Mingsheng Plastic Industry Co ltd
Current assignee: Anqing Mingsheng Plastic Industry Co ltd
Priority date: 2017-05-26
Filing date: 2017-05-26
Publication date: 2023-02-03
Anticipated expiration: 2037-05-26
Also published as: CN107010278A

Abstract

The invention relates to the technical field of packaging bags, in particular to a heat sealing device of a packaging bag, wherein sliding blocks are connected in a sliding groove in a sliding mode, one opposite side of each of the two sliding blocks is connected with a second spring, the upper ends of a plurality of piston rods are connected with a workbench, the other end of a first spring penetrates through a sleeve to be connected with a base, the other end of a second straight rod is hinged to one side of the lower end of each sliding block, the lower end of each sliding block is hinged to a third straight rod, the other ends of the two third straight rods are hinged to two sides of the upper end of a pressing strip, the pressing strip is located above the workbench, the middle of the lower end of the workbench is connected with a third spring, the other end of the third spring is connected with a first contact piece, and the upper end of the base is connected with a second contact piece corresponding to the first contact piece. The invention has the characteristics of simple structure, good heat sealing efficiency, high safety, energy saving, environmental protection and the like, and has strong practicability.

Description

Heat sealing device of packaging bag

Technical Field

The invention relates to the technical field of packaging bags, in particular to a heat sealing device for a packaging bag.

Background

Medical and health products are commonly used in hospitals, and after the products are filled into packaging bags, the packaging bags need to be sealed in order to be stored in a sealed mode and maintain the quality of the products. Generally use hot pressing seal in the market, however, present sealing device simple structure, the function is single, and the last hot pressing board of sealing device when carrying out the heat-seal to the wrapping bag produces vibration when fusing the clamp plate under with and produces the vibration and lead to wrapping bag heat-seal department to have certain smooth line, and the heat-seal quality is not good, and the last hot pressing board of current sealing device is in the high temperature state with fusing the pressure under with always, has the potential safety hazard, for this reason, we propose the sealing device of a wrapping bag.

Novel content

The present invention is directed to a heat sealing device for packaging bags to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme:

the heat sealing device comprises a base, wherein a U-shaped plate is installed at the upper end of the base, an air cylinder is connected to the middle of the lower end of a top plate of the U-shaped plate, a telescopic rod is connected to the lower end of the telescopic rod, two sliding grooves are symmetrically formed in the lower end of the top plate of the U-shaped plate, a sliding block and a second spring are connected to one opposite side of the sliding block, the other end of the second spring is connected with the side wall of each sliding groove, a plurality of sleeves are connected to the upper end of the base, a piston rod is inserted in each sleeve and connected with the upper end of each piston rod in a sleeved mode, a workbench is connected to the upper end of each piston rod in a sliding mode, a first spring is circumferentially wound on each piston rod, one end of each first spring is connected with the lower end of the workbench, the other end of each first straight rod is hinged to the upper end of the base, a groove is formed in the upper end of the workbench, a lower melting pressing plate corresponding to the upper melting pressing plate is installed in the groove, first straight rod is hinged to the side wall of the first straight rod, a second straight rod is hinged to the lower end of the sliding block, a pressing strip is connected to the middle of the third straight rod, and a third pressing strip is connected to the upper end of the third straight rod, and a third pressing strip is connected to the third pressing strip, and connected to the third pressing strip.

Preferably, the number of the sleeves is more than four, and a plurality of the sleeves are distributed in a matrix.

Preferably, the distance between the upright and the end close to the workbench on the first straight rod is greater than the distance between the upright and the end close to the second straight rod.

Preferably, the lower end of the top of the U-shaped plate is connected with a slide rheostat positioned behind the left sliding groove, the slide rheostat comprises a base, a coil and a sliding sheet, and the rear side wall of the sliding block is connected with the sliding sheet on the slide rheostat through a connecting rod.

Preferably, the pressing strip is located at the front end above the lower melting and pressing plate, and the lower melting and pressing plate and the pressing strip are not located on the same vertical plane.

Compared with the prior art, the invention has the beneficial effects that: the heat sealing device of the packaging bag is connected with a power supply, the packaging bag to be sealed is placed on the workbench, the bag mouth is aligned to the position under the pressing strip, under the dead weight of the packaging bag, the workbench presses the piston rod, the position of the workbench descends, under the action of the first straight rod, the vertical rod, the second straight rod, the sliding block and the third straight rod, the pressing strip presses downwards, the bag mouth of the packaging bag is compacted, the position of the workbench descends, the first contact plate is in contact with the second contact plate, the air cylinder is driven to work, the telescopic rod is driven to extend, the upper fusion pressing plate descends, the packaging bag is subjected to heat sealing through heating of the upper fusion pressing plate and the lower fusion pressing plate, the sliding block on the left side of the U-shaped plate drives the sliding piece on the sliding rheostat to slide rightwards, the resistance connected into a heating circuit of the lower fusion pressing plate and the upper fusion pressing plate is reduced, heating of heating wires in the lower fusion pressing plate and the upper fusion pressing plate is accelerated in heat sealing efficiency, the heat sealing efficiency is increased, the heat sealing efficiency is improved, and the temperature of the heating wires in the lower fusion pressing plate and the upper fusion pressing plate is reduced when the next packaging bag is replaced, the packaging bag is high in safety, energy conservation and environmental protection.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged sectional view of the structure of the present invention A-A;

FIG. 3 is an enlarged cross-sectional view of the present invention B-B;

fig. 4 is a schematic diagram of the circuit of the present invention.

In the figure: the device comprises a base 1, a U-shaped plate 2, a sleeve 3, a piston rod 4, a first spring 41, a workbench 5, a lower melt pressure plate 6, a first straight rod 7, a vertical rod 8, a second straight rod 9, a sliding block 10, a sliding chute 11, a second spring 12, a third straight rod 13, a pressing strip 14, an air cylinder 15, a telescopic rod 16, an upper melt pressure plate 17, a third spring 18, a first contact piece 19, a second contact piece 20 and a slide rheostat 21.

Detailed Description

The present invention will be further described with reference to the following detailed description so that the technical means, the creation features, the achievement purposes and the effects of the present invention can be easily understood.

Referring to fig. 1-4, the present invention provides a technical solution:

a heat sealing device of a packaging bag comprises a base 1, wherein the middle part of the lower end of a top plate of a U-shaped plate 2,U is arranged at the upper end of the base 1, an air cylinder 15 is connected with the lower end of the air cylinder 15, an expansion rod 16 is connected with the lower end of the expansion rod 16, two sliding grooves 11 are symmetrically formed in the lower end of the top plate of the U-shaped plate 2, sliding blocks 10 are connected in the sliding grooves 11 in a sliding mode, one opposite sides of the two sliding blocks 10 are connected with second springs 12, the other ends of the second springs 12 are connected with the side walls of the sliding grooves 11, a sliding rheostat 21 located behind the sliding groove 11 on the left side is connected with the lower end of the top of the U-shaped plate 2, the sliding rheostat 21 comprises a base, a coil and a sliding sheet, the rear side wall of the sliding block 10 is connected with the sliding sheet on the sliding rheostat 21 through a connecting rod, resistance connected into a heat sealing circuit is changed, and the temperature of the upper melting pressure plate 17 and the lower melting pressure plate 6 is changed.

The upper end of base 1 is connected with a plurality of sleeves 3, sleeve 3's quantity is more than four, and a plurality of sleeves 3 are the matrix distribution, the atress is even, it has piston rod 4 to peg graft in the sleeve 3, the upper end of a plurality of piston rods 4 is connected with workstation 5, piston rod 4's circumference is around having first spring 41, and first spring 41's one end is connected with workstation 5's lower extreme, sleeve 3 and base 1 are connected are passed to first spring 41's the other end, the upper end of workstation 5 is seted up flutedly, install the lower pressure plate 6 that melts that corresponds with last pressure plate 17 in the recess, melt pressure plate 6 and last pressure plate 17 in-connection and have the heating wire down, the heating effect.

Two sides of the workbench 5 are hinged with first straight rods 7, the side walls of the first straight rods 7 are rotatably connected with vertical rods 8 arranged at the upper end of the base 1, the upper end of the other side of each first straight rod 7 is hinged with a second straight rod 9, the distance between each vertical rod 8 and one end close to the workbench 5 on each first straight rod 7 is larger than the distance between each vertical rod 8 and one end close to the corresponding second straight rod 9, the packaging bags are pressed tightly by the pressing strips 14 by utilizing a lever principle, the other ends of the second straight rods 9 are hinged with one side of the lower end of the sliding block 10, the lower end of the sliding block 10 is hinged with third straight rods 13, the other ends of the two third straight rods 13 are hinged with two sides of the upper end of the pressing strips 14, the pressing strips 14 are located above the workbench 5, the pressing strips 14 are located at the front end above the lower melting and pressing plates 6, the lower melting and the pressing strips 14 are not located on the same vertical plane, the heat sealing process is not hindered by the pressing strips 14, the middle part of the lower end of the workbench 5 is connected with third springs 18, the other ends of the third springs are connected with first contact pieces 19, and the upper end of the base 1 is connected with second contact pieces 20 corresponding to the first contact pieces 19.

When the heat sealing device for the packaging bag in the embodiment is used, a power supply is switched on, the packaging bag to be sealed is placed on the workbench 5, the bag opening is aligned to the position under the pressing strip 14, the piston rod 4 is pressed by the workbench 5 under the self weight of the packaging bag, the position of the workbench 5 is lowered, the pressing strip 14 is pressed down under the action of the first straight rod 7, the vertical rod 8, the second straight rod 9, the slider 10 and the third straight rod 13, the bag opening of the packaging bag is compacted, the position of the workbench 5 is lowered, the first contact piece 19 is contacted with the second contact piece 20, the air cylinder 15 is driven to work, the telescopic rod 16 is driven to extend, the upper fusion pressing plate 17 is lowered, the packaging bag is heated and sealed through the upper fusion pressing plate 17 and the lower fusion pressing plate 6, the slider 10 on the left side of the U-shaped plate 2 drives the slide piece on the slide rheostat 21 to slide rightwards, the heating resistors connected into the lower fusion pressing plate 6 and the upper fusion pressing plate 17 are reduced, the heating wires in the lower fusion pressing plate 6 and the upper fusion pressing plate 17 are heated and accelerated, the heat sealing efficiency is increased, the high, the environmental-protection and the high-saving-energy-saving heating efficiency is achieved, and the high safety is achieved.

The foregoing shows and describes the general principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a heat-sealing device of wrapping bag, includes base (1), and U template (2), its characterized in that are installed to the upper end of base (1): the lower end middle part of the top plate of the U-shaped plate (2) is connected with an air cylinder (15), the lower end of the air cylinder (15) is connected with a telescopic rod (16), the lower end of the telescopic rod (16) is connected with an upper melting pressing plate (17), the lower end of the top plate of the U-shaped plate (2) is symmetrically provided with two sliding chutes (11), the sliding chutes (11) are internally and slidably connected with sliding blocks (10), two opposite sides of each sliding block (10) are connected with second springs (12), the other ends of the second springs (12) are connected with the side walls of the sliding chutes (11), the upper end of the base (1) is connected with a plurality of sleeves (3), the sleeves (3) are internally and internally inserted with piston rods (4), the upper ends of the piston rods (4) are connected with a workbench (5), the circumferential direction of the piston rods (4) is surrounded with first springs (41), one end of each first spring (41) is connected with the lower end of the workbench (5), the other end of each first spring (41) penetrates through the sleeve (3) to be connected with the base (1), the upper end of the workbench (5) is provided with a groove, the lower end of the corresponding upper melting pressing plate (17) is mounted in the groove, the side wall (7) is hinged with a first melting pressing plate (7), and the side wall (7) is connected with a first pressing plate (7) which is connected with a first pressing plate (7), the upper end of the other side of the first straight rod (7) is hinged with a second straight rod (9), the other end of the second straight rod (9) is hinged with one side of the lower end of a sliding block (10), the lower end of the sliding block (10) is hinged with third straight rods (13), the other ends of the two third straight rods (13) are hinged with two sides of the upper end of a pressing strip (14), the pressing strip (14) is located above a workbench (5), the middle of the lower end of the workbench (5) is connected with a third spring (18), the other end of the third spring (18) is connected with a first contact piece (19), and the upper end of the base (1) is connected with a second contact piece (20) corresponding to the first contact piece (19);

the lower end of the top of the U-shaped plate (2) is connected with a slide rheostat (21) located behind the left sliding chute (11), the slide rheostat (21) is composed of a base, a coil and a sliding sheet, and the rear side wall of the sliding block (10) is connected with the sliding sheet on the slide rheostat (21) through a connecting rod; the pressing strip (14) is located at the front end of the upper portion of the lower melting pressing plate (6), and the lower melting pressing plate (6) and the pressing strip (14) are not located on the same vertical plane.

2. The heat-sealing apparatus for a packaging bag according to claim 1, wherein: the number of the sleeves (3) is more than four, and the sleeves (3) are distributed in a matrix.

3. The heat-sealing device for a packaging bag according to claim 1, wherein: the distance between the vertical rod (8) and the end close to the workbench (5) on the first straight rod (7) is larger than the distance between the vertical rod (8) and the end close to the second straight rod (9).