CN217970194U

CN217970194U - End sealing mechanism of vegetable and fruit packaging machine

Info

Publication number: CN217970194U
Application number: CN202222172762.2U
Authority: CN
Inventors: 黄早生; 黄清
Original assignee: Ganzhou Changshi Intelligent Technology Co ltd
Current assignee: Ganzhou Changshi Intelligent Technology Co ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2022-12-06
Anticipated expiration: 2032-08-18

Abstract

The utility model relates to the technical field of sealing devices of vegetable and fruit packaging machines, in particular to an end sealing mechanism of a vegetable and fruit packaging machine, which comprises a frame, an upper rotating shaft rotationally connected with the frame, a lower rotating shaft rotationally connected with the frame and a rotating component for driving the upper rotating shaft and the lower rotating shaft to synchronously move; a conveying line is fixed on the rack; an upper heat sealing knife is fixed on the shaft body of the upper rotating shaft; a lower sealing knife is fixed on the shaft body of the lower rotating shaft. Use the utility model discloses the time, this structure can realize the continuous operation that the wrapping bag end sealed, improves and seals efficiency.

Description

End sealing mechanism of vegetable and fruit packaging machine

Technical Field

The utility model relates to a vegetables and fruits packagine machine's closing device technical field, in particular to vegetables and fruits packagine machine's end seals mechanism.

Background

In the automatic vegetable and fruit packaging process, the vegetables and fruits need to be arranged one by one and then are sent into a packaging film, the vegetables and fruits are wrapped by a film material through a film pulling device and a film forming mechanism, and the film material is formed into a cylindrical shape; then the folded sealing part is sealed and fixed by a hot pressing device; after the middle seal is fixed, sealing and cutting off the two ends of the vegetables and fruits by an end seal mechanism; the sealing and cutting actions are the same; the sealing knife and the cutting knife are generally provided as one body.

However, the existing end sealing mechanism can not realize continuous sealing of the envelope, and the sealing efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects and shortcomings of the prior art, and provides an end sealing mechanism of a vegetable and fruit packaging machine.

In order to achieve the purpose, the utility model adopts the technical proposal that:

the utility model relates to an end sealing mechanism of a vegetable and fruit packing machine, which comprises a frame, an upper rotating shaft rotationally connected with the frame, a lower rotating shaft rotationally connected with the frame and a rotating component for driving the upper rotating shaft and the lower rotating shaft to synchronously move; a conveying line is fixed on the rack; an upper heat sealing knife is fixed on the shaft body of the upper rotating shaft; and a lower sealing knife is fixed on the shaft body of the lower rotating shaft.

Furthermore, a plurality of avoidance grooves which are arranged along the conveying direction of the conveying line are uniformly distributed on the surface of the conveying line; the lower rotating shaft is arranged in the conveying line.

Further, the conveying line comprises two synchronous belts which move synchronously; a plurality of fixed rods are fixed between the two synchronous belts.

Further, the number of the upper heat sealing knives is at least two; the number of the upper heat sealing knives is equal to that of the lower heat sealing knives; the upper heat sealing knives are circumferentially distributed on the upper rotating shaft; the lower sealing knives are circumferentially distributed on the lower rotating shaft.

After the structure is adopted, the utility model discloses beneficial effect does: when the end sealing mechanism of the vegetable and fruit packaging machine is used, a film which is in a barrel-shaped structure after being fixed by a middle seal is conveyed to a position between an upper heat sealing knife and a lower sealing knife at a constant speed through a conveying line; when the upper rotating shaft and the lower rotating shaft synchronously rotate, the end face of the upper heat sealing knife and the end face of the lower heat sealing knife just meet in the rotating process of the upper heat sealing knife and the lower heat sealing knife, and the upper heat sealing knife is provided with two hot pressing edges which are respectively used for hot-pressing and bonding the rear end of a front bag and the front end of a rear bag; a cutting tool is arranged between the two hot pressing edges and is used for cutting and separating the front bag from the back bag; the structure can realize continuous work of the end seal of the packaging bag, and improve the sealing efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a block diagram of the lower spindle disposed inside the conveyor line;

FIG. 3 is a view showing the contact state of an upper heat-seal cutter and a lower heat-seal cutter;

description of reference numerals:

1. a frame; 2. an upper rotating shaft; 3. an upper heat sealing knife; 301. hot edge pressing; 4. a lower sealing knife;

5. a rotating assembly; 6. a lower rotating shaft; 7. a conveying line; 701. an avoidance groove; 8. and (4) a synchronous belt.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 3, the end sealing mechanism of a vegetable and fruit packing machine of the present invention comprises a frame 1, an upper rotating shaft 2 rotatably connected to the frame 1, a lower rotating shaft 6 rotatably connected to the frame 1, and a rotating assembly 5 for driving the upper rotating shaft 2 and the lower rotating shaft 6 to move synchronously; a conveying line 7 is fixed on the rack 1; an upper heat sealing knife 3 is fixed on the shaft body of the upper rotating shaft 2; a lower sealing knife 4 is fixed on the shaft body of the lower rotating shaft 6; the rotating assembly 5 consists of a motor, a driving chain wheel, a driven chain wheel and a transmission chain, and drives the two upper rotating shafts 2 and the lower rotating shafts 6 to synchronously move through the motor, the driving chain wheel, the driven chain wheel and the transmission chain;

a heater is arranged in the upper heat sealing knife 3, and the circuit of the heater is communicated with an external circuit through the upper rotating shaft 2; the connection between the upper rotating shaft 2 and an external circuit is not essentially different from the existing connection circuit, so that the details are not described; the film which is in a barrel-shaped structure after the middle seal is fixed is conveyed between the upper heat seal knife 3 and the lower seal knife 4 at a constant speed through a conveying line 7; when the upper rotating shaft 2 and the lower rotating shaft 6 rotate synchronously, two hot pressing edges 301 are arranged on the upper heat-sealing knife 3 at the position where the end face of the upper heat-sealing knife 3 and the end face of the lower heat-sealing knife 4 just meet in the rotating process of the upper heat-sealing knife 3 and the lower heat-sealing knife 4, and are respectively used for hot-press bonding of the rear end of the previous bag and hot-press bonding of the front end of the next bag; a cutting tool is arranged between the two hot pressing edges 301 and is used for cutting and separating the front bag from the back bag;

the structure can realize continuous work of the end seal of the packaging bag, and improve the sealing efficiency.

As a preferred mode of the present invention, a plurality of avoiding grooves 701 arranged along the conveying direction of the conveying line 7 are uniformly distributed on the surface of the conveying line 7; the lower rotating shaft 6 is arranged inside the conveying line 7; the vegetables and fruits are supported on the surface of the conveying line 7, and the heat-sealing cutting opening is opposite to the avoiding groove 701; when the heat-sealing cut and the avoidance groove 701 move between the upper rotating shaft 2 and the lower rotating shaft 6, the lower sealing knife 4 just extends upwards from the avoidance groove 701 and reaches the highest point to be in contact with the upper heat-sealing knife 3 to realize heat sealing and cutting; this structure can make the lower sword 4 of sealing of below and lower pivot 6 can not carry vegetables and fruits and produce the hindrance for vegetables and fruits carry more stably.

As a preferred mode of the present invention, the conveyor line 7 includes two synchronous belts 8 moving synchronously; a plurality of fixed rods are fixed between the two synchronous belts 8; a plurality of synchronous wheels and synchronous transmission shafts are arranged inside the two synchronous belts 8; the two synchronous belts 8 move synchronously under the drive of an external motor; a plurality of fixed rods are combined to replace a sealed conveying belt; because there is great gap between the dead lever, improve radiating efficiency, prevent that the heat accumulation from producing the destruction to the wrapping bag surface.

As a preferred mode of the present invention, the number of the upper heat sealing knives 3 is at least two; the number of the upper heat sealing knives 3 is equal to that of the lower heat sealing knives 4; the upper heat sealing knives 3 are circumferentially distributed on the upper rotating shaft 2; the lower sealing knives 4 are circumferentially distributed on the lower rotating shaft 6; the number of the upper heat sealing knife 3 and the lower heat sealing knife 4 is set according to the conveying speed of vegetables and fruits, the upper heat sealing knife 3 can absorb a part of heat after hot pressing, and if the vegetables and fruits are immediately subjected to heat sealing again, the temperature of the heat sealing cannot be reached; therefore, the temperature of the upper heat-sealing knife 3 can be guaranteed by arranging a plurality of upper heat-sealing knives 3 to work alternately.

When the utility model is used, the vegetables and fruits are supported on the surface of the conveying line, and the heat-sealing cutting opening is opposite to the avoiding groove; when the heat-seal cutting notch and the avoiding groove move between the upper rotating shaft and the lower rotating shaft, the lower sealing knife just extends upwards from the avoiding groove and reaches the highest point to be in contact with the upper sealing knife to realize heat seal and cutting, and the upper sealing knife is provided with two heat pressing edges which are respectively used for hot-press bonding of the rear end of the previous bag and hot-press bonding of the front end of the next bag; a cutting tool is arranged between the two hot pressing edges and is used for cutting and separating the front bag from the back bag; the structure can realize continuous work of sealing the end of the packaging bag, and sealing efficiency is improved.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims

1. The utility model provides a vegetables and fruits packagine machine's end seals mechanism which characterized in that: the device comprises a rack (1), an upper rotating shaft (2) rotatably connected to the rack (1), a lower rotating shaft (6) rotatably connected to the rack (1) and a rotating assembly (5) for driving the upper rotating shaft (2) and the lower rotating shaft (6) to synchronously move; a conveying line (7) is fixed on the rack (1); an upper heat sealing knife (3) is fixed on the shaft body of the upper rotating shaft (2); and a lower sealing knife (4) is fixed on the shaft body of the lower rotating shaft (6).

2. The end sealing mechanism of the vegetable and fruit packaging machine according to claim 1, wherein: a plurality of avoidance grooves (701) which are arranged along the conveying direction of the conveying line (7) are uniformly distributed on the surface of the conveying line (7); the lower rotating shaft (6) is arranged inside the conveying line (7).

3. The end sealing mechanism of claim 2, wherein: the conveying line (7) comprises two synchronous belts (8) which move synchronously; a plurality of fixed rods are fixed between the two synchronous belts (8).

4. The end sealing mechanism of the vegetable and fruit packaging machine according to claim 2, wherein: the number of the upper heat sealing knives (3) is at least two; the number of the upper heat sealing knives (3) is equal to that of the lower heat sealing knives (4); the upper heat sealing knives (3) are circumferentially distributed on the upper rotating shaft (2); the lower sealing knives (4) are distributed on the lower rotating shaft (6) in a circumferential manner.