CN112722458A

CN112722458A - Sealing machine for food processing

Info

Publication number: CN112722458A
Application number: CN202110007947.5A
Authority: CN
Inventors: 周金祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-04-30

Abstract

The invention relates to the technical field of food processing, and discloses a sealing machine for food processing, which comprises four driving wheels, wherein an annular thin belt is movably sleeved outside each two driving wheels, a heating block is movably arranged at one end of the inner side of each annular thin belt, and a heat transfer sheet is movably arranged at the top end of each heating block. According to the invention, the heating block downwards extrudes the annular thin strip by utilizing the thermal expansion of the gas in the air bag, so that the contact area between the films of the packaging bag is enlarged, the heat conduction is effectively promoted, the melting degree of the films is better, the air bag is timely subjected to heat conduction and cooling through the heat conducting sheet, the air bag is prevented from being excessively expanded to influence the sealing, the heat dissipation of the heating block is also promoted, the overheating of a heating component is avoided, the mechanical damage is avoided, the wind energy used by the cooling mechanism is subjected to secondary conduction and transportation by adopting the wind conducting belt, the heat dissipation effect of the components contained in the heating mechanism in the sealing machine is enhanced, and the stability of the equipment and the sealing quality are effectively.

Description

Sealing machine for food processing

Technical Field

The invention relates to the technical field of food processing, in particular to a sealing machine for food processing.

Background

The sealing machine is a processing device for sealing the opening end of a food packaging bag through an automatic instrument after the food packaging bag is filled with food, the existing sealing machine is various in types, wherein the most common sealing machine is a continuous belt type heat sealing machine, the sealing machine mainly drives an annular thin belt through a pair of relatively rotating shaft wheels, the food packaging bag is clamped and transported, a film at the opening end of the packaging bag is heated through a heating block to be bonded, then the film is pressed and rolled through an embossing roller, and then the seal is cooled and fixed through a cooling mechanism.

In the existing component, because the heating block structure is fixed, the position is controlled by the adjusting nut, when the thickness of the film at the opening end of the packaging bag is not consistent, the problem of incomplete melting of the film exists because of the deviation of the distance between the heating blocks and the difference of the melting temperature, namely when the thickness of the film of the packaging bag is large, the melting temperature of the film is reduced because of insufficient temperature of the heating blocks and large distance between thin strips, so that incomplete melting of the film is caused, when the film has the problem of incomplete melting, the problem of unfirm sealing of the press sealing and cold sealing can be caused, and the sealing failure of the packaging bag can be caused, for the problems, the existing mechanism only can adopt the adjusting nut for adjusting related components by stopping, but the operation of the mode is too complicated, the progress of food processing production is influenced, and meanwhile, the qualified rate of the sealing of the packaging bag can also be greatly reduced because of the limitation that the heating block, the quality of the seal is uneven.

Disclosure of Invention

Aiming at the defects of the existing sealing machine in the use process in the background technology, the invention provides the sealing machine for food processing treatment, which has the advantages that when a heating block is used for heating a film, the heating block can be pressed down actively, the pressure is increased, the heat conduction between the films is promoted, the incomplete melting of the films is avoided, and the qualified rate of sealing is improved, and the technical problems in the background technology are solved.

The invention provides the following technical scheme: a sealing machine for food processing comprises four driving wheels, wherein an annular thin belt is movably sleeved outside each two driving wheels, a heating block is movably mounted at one end of the inner side of the annular thin belt, a heat transfer piece is movably mounted at the top end of the heating block, an air bag is fixedly mounted at the top end of the heat transfer piece, a heat conduction piece is fixedly mounted at the top end of the air bag, a heat dissipation cavity is fixedly mounted at the middle part of the top end of the heat conduction piece, a support rod is fixedly mounted at the bottom end of the heat conduction piece, adjusting rods are fixedly mounted at four corners of the top end of the heat conduction piece, a mechanism support plate is fixedly mounted at the top end of each adjusting rod, an adjusting screw rod is fixedly mounted at one side of the bottom end of the mechanism support plate, a cooling mechanism is fixedly mounted at the bottom end of the adjusting screw rod, the middle part of the compression roller is fixedly sleeved with a transmission shaft, and the outer part of the transmission shaft is fixedly sleeved with a fan wheel.

Preferably, the front surface of the heating block is shaped like an isosceles trapezoid, and the surface of the heating block has good thermal conductivity.

Preferably, the inner cavity of the airbag is filled with carbon dioxide gas, and the airbag has the characteristic of reversible deformation.

Preferably, one end of the heat dissipation cavity is fixedly communicated with one end of the air transmission belt, and the other end of the heat dissipation cavity is provided with a hole.

Preferably, the shape of the air transfer belt is rectangular, the width of the middle part of the air transfer belt is slightly smaller than the width of the interfaces at the two ends, and the middle part of the air transfer belt is tightly attached to the surface of the press roll.

The invention has the following beneficial effects:

1. according to the invention, the gas in the air bag is subjected to thermal expansion to deform and push the heat transfer sheet, so that the heating block downwards extrudes the annular thin strip, the contact area between the films of the packaging bag is enlarged, the pressure of the gas and the film is enhanced, the heat energy conduction is effectively promoted, the melting degree of the film is better, and the phenomenon that the film is not melted due to uneven melting temperature is avoided.

2. The heat conducting fins can conduct heat conduction and temperature reduction on the air bag in time, the air bag is prevented from being expanded excessively to affect sealing, and the heat conducting fins can promote heat dissipation of the heating block through heat energy transmission of the heat conducting fins and the air bag, so that mechanical damage caused by overheating of a heating component is avoided.

3. According to the invention, the wind energy used by the cooling mechanism is conducted and transported again by adopting the wind transmission belt, the fan wheel and the compression roller are driven to rotate by the transmission shaft, the wind flow generated by the fan wheel keeps the compression roller at a low temperature, the circulating wind energy in the wind transmission belt can be cooled, and is converted into cold wind to be transmitted into the heat dissipation cavity, so that the heat dissipation effect of parts in the heating mechanism in the sealing machine is enhanced, and the stability of the equipment and the sealing quality are effectively ensured.

Drawings

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

FIG. 2 is a schematic top view of the structure of the present invention;

FIG. 3 is a schematic side view of the structure of the present invention.

In the figure: 1. a driving wheel; 2. an annular thin strip; 3. a heating block; 4. a heat transfer sheet; 5. an air bag; 6. a heat conductive sheet; 7. a heat dissipation cavity; 8. a support bar; 9. adjusting a rod; 10. a mechanism support plate; 11. adjusting the screw rod; 12. a cooling mechanism; 13. a wind-conveying belt; 14. a compression roller; 15. a drive shaft; 16. and a fan wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a sealing machine for food processing comprises four driving wheels 1, wherein an annular thin belt 2 is movably sleeved outside each two driving wheels 1, a heating block 3 is movably installed at one end of the inner side of the annular thin belt 2, a heat transfer sheet 4 is movably installed at the top end of the heating block 3, an air bag 5 is fixedly installed at the top end of the heat transfer sheet 4, a heat conduction sheet 6 is fixedly installed at the top end of the air bag 5, the air bag 5 is subjected to timely heat conduction and cooling through the heat conduction sheet 6, the air bag 5 is prevented from excessively expanding and deforming, so that the pressure distance between the annular thin belts 2 is excessively small, sealing is affected, heat energy of the heat transfer sheet 4 and the air bag 5 is sequentially transferred, the heat conduction sheet 6 can also promote heat dissipation of the heating block 3, overheating of a heating component is avoided, mechanical damage is caused, a heat dissipation cavity 7 is fixedly installed in the middle of the top end, the bracing piece 8 is towards one side of heat transfer piece 4, the channel has been seted up, heat transfer piece 4 and its swing joint transmission, wherein two length of bracing piece 8, be less than two other length of bracing piece 8, longer two bracing pieces 8 can assist the horizontal position of injecing the open end of wrapping bag, make it keep the level, the top four corners fixed mounting of heat transfer piece 6 has regulation pole 9, the top fixed mounting of regulation pole 9 has mechanism backup pad 10, bottom one side fixed mounting of mechanism backup pad 10 has adjusting screw 11, adjusting screw 11's bottom fixed mounting has cooling mechanism 12, the one end fixedly connected with of cooling mechanism 12 leads wind area 13, the bottom movable mounting of leading wind area 13 has compression roller 14, the middle part of compression roller 14 is fixed to have cup jointed transmission shaft 15, fan wheel 16 has been cup jointed to the external fixation of transmission.

Wherein, the front shape of heating block 3 is isosceles trapezoid, and its surface has good heat conductivity.

Wherein, the inner chamber of gasbag 5 is full of carbon dioxide gas, and it has reversible deformation's characteristic, utilize the interior carbon dioxide gas of gasbag 5 to be heated and expand, make it take place deformation and promote heat transfer piece 4, let heating block 3 extrude the thin area 2 of annular downwards, and then increase the area of contact between the wrapping bag film, and strengthen the pressure degree that the wrapping bag film received, effectively promote the heat energy conduction between film and the heating block 3, make the film melt the degree better, avoid because of melting the uneven phenomenon that leads to the film to exist not melting of temperature.

Wherein, one end of the heat dissipation cavity 7 is fixedly communicated with one end of the air transmission belt 13, and the other end of the heat dissipation cavity 7 is provided with a hole.

The shape of the air belt 13 is rectangular, the width of the middle part of the air belt is slightly smaller than the width of the interfaces at two ends, the middle part of the air belt is tightly attached to the surface of the compression roller 14, the air flow communicated with the cooling mechanism 12 is guided and recovered by the air belt 13 for secondary conduction and transportation, the fan wheel 16 and the compression roller 14 are driven to rotate through the transmission shaft 15, the air flow generated by the fan wheel 16 enables the compression roller 14 to keep low temperature, the air flow recovered inside the air belt 13 is cooled down and converted into cold air to be transmitted into the heat dissipation cavity 7, the heat dissipation effect of the contained components is enhanced in the heating mechanism inside the sealing machine, and the stability of the equipment and the sealing quality are effectively guaranteed.

The use method (working principle) of the invention is as follows:

starting a sealing machine, preheating the heating block 3, ventilating and cooling the cooling mechanism 12, after the equipment is preheated and precooled, horizontally placing a packaging bag to be sealed on a workbench, enabling the opening end of the packaging bag to be flatly placed between the annular thin strips 2 and be tightly attached to the annular thin strips, adjusting the position of the packaging bag through an adjusting mechanism, enabling the packaging bag to move forwards at a constant speed along with the rotation of the annular thin strips 2, enabling the air bag 5 to be heated and expanded due to the conduction of the heat transfer sheet 4 when the packaging bag moves to the lower part of the bottom end of the heating block 3, pushing the heat transfer sheet 4 and the heating block 3 to downwards extrude the annular thin strips 2, enabling the film at the opening end of the packaging bag to be extruded and attached to the annular thin strips 2, simultaneously enabling the heating block 3 to heat and melt the film due to the tight and complete contact area between the films and the increase of the pressure intensity, so that the conduction, melting is thorough, after heating is finished, the annular thin belt 2 drives the packaging bag to move forward continuously, the packaging bag passes through the compression roller 14, cold air flow is generated due to rotation of the fan wheel 16, the surface of the compression roller 14 keeps low temperature, the molten film of the packaging bag is subjected to pressing and pre-cooling treatment, after the compression roller 14 rolls, the annular thin belt 2 drives the packaging bag to move forward, and cooling and sealing are carried out through the cooling mechanism 12, and the final sealing work of the packaging bag is finished.

When the packaging bag is crushed and cooled, the air flow used by the cooling mechanism 12 is guided and recovered by the air conveying belt 13, is cooled to a certain extent by the surface of the compression roller 14, and then is filled into the heat dissipation cavity 7 to timely cool and dissipate the temperature of the air bag 5 and the heating block 3, so that the proper melting temperature and pressure distance are kept, and the normal operation of the sealing operation is ensured.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a capper for food processing, includes four drive wheels (1), its characterized in that: the outer parts of every two driving wheels (1) are movably sleeved with an annular thin belt (2), one end of the inner side of each annular thin belt (2) is movably provided with a heating block (3), the top end of each heating block (3) is movably provided with a heat transfer sheet (4), the top end of each heat transfer sheet (4) is fixedly provided with an air bag (5), the top end of each air bag (5) is fixedly provided with a heat transfer sheet (6), the middle part of the top end of each heat transfer sheet (6) is fixedly provided with a heat dissipation cavity (7), the bottom end of each heat transfer sheet (6) is fixedly provided with a support rod (8), four corners of the top end of each heat transfer sheet (6) are fixedly provided with adjusting rods (9), the top end of each adjusting rod (9) is fixedly provided with a mechanism supporting plate (10), one side of the bottom end of each mechanism supporting plate (10) is fixedly provided with an, one end of the cooling mechanism (12) is fixedly connected with an air conveying belt (13), a press roller (14) is movably mounted at the bottom end of the air conveying belt (13), a transmission shaft (15) is fixedly sleeved in the middle of the press roller (14), and a fan wheel (16) is fixedly sleeved outside the transmission shaft (15).

2. The capper of claim 1 wherein: the front surface of the heating block (3) is in an isosceles trapezoid shape, and the surface of the heating block has good thermal conductivity.

3. The capper of claim 1 wherein: the inner cavity of the air bag (5) is filled with carbon dioxide gas and has the characteristic of reversible deformation.

4. The capper of claim 1 wherein: one end of the heat dissipation cavity (7) is fixedly communicated with one end of the air transmission belt (13), and the other end of the heat dissipation cavity (7) is provided with a hole.

5. The capper of claim 1 wherein: the shape of the air transmission belt (13) is rectangular, the width of the middle part of the air transmission belt is slightly smaller than the width of the joints at the two ends, and the middle part of the air transmission belt is tightly attached to the surface of the press roll (14).