CN109605830B

CN109605830B - Bag making device for condiment packaging bags

Info

Publication number: CN109605830B
Application number: CN201811458354.5A
Authority: CN
Inventors: 胡佐林; 彭伟
Original assignee: Chongqing Dingsheng Printing Co Ltd
Current assignee: Chongqing Dingsheng Printing Co Ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2020-10-30
Anticipated expiration: 2038-11-30
Also published as: CN109605830A

Abstract

The invention relates to the technical field of packaging bag processing, and discloses a bag making device for condiment packaging bags, which comprises a rack, wherein a conveying unit, a heat sealing unit, a cooling unit and a cutting unit are arranged on the rack, the heat sealing unit comprises a hot pressing plate and a first driving mechanism for driving the hot pressing plate to move, a heating element and a cavity are arranged in the hot pressing plate, a piston is connected in the cavity in a sealing and sliding manner, a piston rod is fixedly connected onto the piston, one end, far away from the piston, of the piston rod is fixedly connected onto the rack, a plurality of blowing pipes aligned with the packaging bags below the hot pressing plate are communicated onto the cavity, a first one-way valve is arranged on each blowing pipe, and a; the cooling unit comprises a cold pressing plate and a second driving mechanism for driving the cold pressing plate to move, and a channel for cooling water to flow is arranged in the cold pressing plate. The invention can solve the problem of deformation of the packaging bag caused by untimely cooling in the bag making process of the packaging bag.

Description

Bag making device for condiment packaging bags

Technical Field

The invention relates to the technical field of packaging bag processing, in particular to a bag making device for a condiment packaging bag.

Background

The main bag making process of the film packaging bag comprises the following steps: raw material film blowing, film printing, multilayer film compounding, composite film curing, heat sealing bag making, cold press molding, slitting and the like. The cold press molding is to press the part of the film packaging bag which is softened at high temperature and is just subjected to heat sealing after heat sealing by using a cold press plate while cooling, so that the finished product of the film packaging bag is firm, flat and beautiful. In the prior art, a packaging bag is mostly transmitted through a driving roller, and the packaging bag is firstly thermally sealed and then transmitted to a cold pressing plate through the driving roller to be cooled; a certain distance exists between heat seal and cooling, the packaging bag softened at high temperature in the process is not formed, and the problems of deformation, wrinkle and the like are easily caused under the action of the pulling force of the driving roller, so that the edge of the cut packaging bag is not flat, and the appearance of the cut packaging bag is influenced.

Disclosure of Invention

The invention aims to provide a bag making device for a condiment packaging bag, which aims to solve the problem of deformation of the packaging bag caused by untimely cooling in the bag making process of the packaging bag.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a bag making device for condiment packaging bags comprises a rack, wherein a conveying unit, a heat sealing unit, a cooling unit and a cutting unit are arranged on the rack, the heat sealing unit comprises a hot pressing plate and a first driving mechanism used for driving the hot pressing plate to move, a heating element and a cavity are arranged in the hot pressing plate, a piston is connected in the cavity in a sealing sliding mode, a piston rod is fixedly connected onto the piston, one end, far away from the piston, of the piston rod is fixedly connected onto the rack, a plurality of blowing pipes aligned to packaging bags below the hot pressing plate are communicated onto the cavity, a first one-way valve is arranged on each blowing pipe, and a second one-way valve is arranged; the cooling unit comprises a cold pressing plate and a second driving mechanism for driving the cold pressing plate to move, and a channel for cooling water to flow is arranged in the cold pressing plate.

Compared with the prior art, the invention has the following principle and beneficial effects: the packing bags are automatically transported by the transporting unit. The first driving mechanism is used for driving the hot pressing plate to reciprocate, and heat sealing treatment is carried out on the passing packaging bags in the process; when the hot pressing plate moves close to the packaging bag, the hot pressing plate moves relative to the piston to reduce the pressure in the cavity, external air enters the cavity through the second one-way valve under the action of the difference of internal and external pressures, and when the hot pressing plate is reset after heat sealing treatment is completed, the hot pressing plate moves in the reverse direction relative to the piston to increase the pressure in the cavity, so that the air in the cavity is blown to the packaging bag below the hot pressing plate through the blowing pipe, the heat-sealed packaging bag is preliminarily cooled in time, the heat-sealed part of the packaging bag is preformed, and then in the process of reaching the cooling unit under the action of the conveying unit, the pulling force generated by conveying is overcome, and the deformation of the packaging bag is avoided; when carrying out heat seal processing to the wrapping bag through the hot pressboard, realize the precooling, need not to set up extra precooling mechanism, reach heat seal and precooling's dual effect, improved the efficiency of processing.

The packaging bag after heat seal treatment and primary cooling reaches the cooling unit under the action of the conveying unit, the cold pressing plate is driven by the first driving mechanism to cool the packaging bag again, the packaging bag is pressed flat at the same time, and cooling water is introduced into the channel in the process to cool and cool, so that the heat seal position of the packaging bag is rapidly cooled and formed. Through twice cooling, can fully cool down to the wrapping bag, ensure that the wrapping bag can rapid prototyping, avoid it to take place deformation, fold to improve the quality of wrapping bag. After the cooling forming is completed, the conveying unit conveys the packaging bags to the cutting unit to be cut into single packaging bags, so that the whole bag making process of the packaging bags is completed.

Further, the channels are distributed in a curve.

So that the cooling water flows in a curve, the path distance of the cooling water in the cold pressing plate is prolonged, and the staying time of the cooling water in the cold pressing plate is increased, thereby improving the cooling effect.

Furthermore, the hot pressing plate is detachably connected with a heat sealing strip on one side in contact with the packaging bag, and the cold pressing plate is detachably connected with a cold pressing strip corresponding to the heat sealing strip on one side in contact with the packaging bag.

Set up heat-seal strip and cold pressing strip, can install the heat-seal strip of different grade type and the cold pressing strip that corresponds according to actual production needs, realize carrying out different heat seal processing to the wrapping bag, if: single-side heat seal, three-side heat seal, etc., thereby expanding the application range of the device.

Further, the width of the cold pressing strip is larger than that of the heat sealing strip.

So as to fully cool the heat sealing position of the packaging bag, better shape the packaging bag and improve the quality of the packaging bag.

Furthermore, a punching unit is arranged between the cooling unit and the cutting unit.

According to the actual production needs, the wrapping bag of accessible punching unit is punched.

Further, the unit of punching is including the post and the cylinder body of punching that are located the wrapping bag both sides respectively, and sliding connection has the backup pad that is used for supporting the wrapping bag in the cylinder body, is equipped with in the frame to be used for driving the gliding third actuating mechanism of backup pad, and it has the discharge gate to open on the cylinder body, is equipped with the dog that is used for sealing the discharge gate in the backup pad, and the intercommunication has the pipe on the cylinder body, and the pipe end of giving vent to ange.

When punching, the packaging bag is punched through the punching column. In the process, the third driving mechanism drives the supporting plate to approach the packaging bag and contact the packaging bag, and an upward supporting force is provided for the packaging bag during punching to play a supporting role; in the process, the cylinder body stores air through pressure difference. After the punching is finished, the produced excess materials are remained on the supporting plate, the third driving mechanism drives the supporting plate to reset, and air in the cylinder body is blown out through the guide pipe; because the outlet end of the guide pipe is right opposite to the discharge hole, the guide pipe blows air to the discharge hole, excess materials on the supporting plate are blown out in the process, and cleaning is finished.

Furthermore, a first rack is connected to the supporting plate, a second rack is connected to the punching column, and gears with two sides respectively meshed with the first rack and the second rack are rotatably connected to the rack.

Through setting up first gear, second rack and gear, realize the linkage of backup pad and the post that punches, promptly: when the supporting plate moves close to the packaging bag, the punching column also approaches to the packaging bag; when the wrapping bag was kept away from to the backup pad, the wrapping bag was also kept away from to the post that punches to improve automated control, and then improve the efficiency of system bag.

Furthermore, a recycling groove is connected at the discharge port.

Through setting up the accumulator, concentrate the collection to the clout, avoid scattering on ground.

Drawings

FIG. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a bottom view of a hot platen according to an embodiment of the present invention;

FIG. 3 is a bottom view of a cold platen in an embodiment of the present invention;

FIG. 4 is a side view showing the positional relationship between the support plate and the punching post in the embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a driving roller 1, a hot pressing plate 2, a first hydraulic cylinder 3, a heat sealing strip 4, a heating wire 5, a cavity 6, a piston 7, a piston rod 8, a blowing pipe 9, a first one-way valve 10, a cold pressing plate 11, a second hydraulic cylinder 12, a cold pressing strip 13, a channel 14, a punching column 15, a cylinder body 16, a supporting plate 17, a third hydraulic cylinder 18, a discharge hole 19, a guide plate 20, a stop block 21, a recovery groove 22, a guide pipe 23, a third one-way valve 24, a connecting rod 25, a first rack 26, a second rack 27, a gear 28, a cutter 29, a workbench 30 and a collecting box 31.

The embodiment is basically as shown in the attached figures 1 to 4:

a bag making device for condiment packaging bags comprises a rack, wherein a conveying unit, a heat sealing unit, a cooling unit, a punching unit and a cutting unit are arranged on the rack. The conveying unit comprises a plurality of driving rollers 1 and a motor for driving the driving rollers 1, and the driving rollers 1 are linked through a chain. The heat seal unit comprises a hot pressing plate 2 and a first driving mechanism for driving the hot pressing plate 2 to move, the first driving mechanism is a first hydraulic cylinder 3 in the embodiment, and a heat sealing strip 4 is detachably connected to one surface of the hot pressing plate 2, which is in contact with the packaging bag. Be equipped with heating member and cavity 6 in the hot pressboard 2, heating member is heater strip 5 in this embodiment, it is installed in the one side that is close to the wrapping bag, cavity 6 is located heater strip 5 top, sealed sliding connection has piston 7 in the cavity 6, the rigid coupling has piston rod 8 on the piston 7, the one end rigid coupling that piston rod 8 kept away from piston 7 is in the frame, the intercommunication has a plurality of blowing pipes 9 of aiming at the wrapping bag below the hot pressboard 2 all around on the cavity 6, all be equipped with the first check valve 10 by cavity 6 outside one-way conduction on the blowing pipe 9, be equipped with the second check valve by the external one-way conduction to cavity 6 on the lower cavity of cavity 6. The cooling unit comprises a cold pressing plate 11 and a second driving mechanism for driving the cold pressing plate 11 to move, the second driving mechanism is a second hydraulic cylinder 12 in the embodiment, a cold pressing strip 13 corresponding to the heat sealing strip 4 is detachably connected to one surface, in contact with the packaging bag, of the cold pressing plate 11, and the width of the cold pressing strip 13 is larger than that of the heat sealing strip 4; be equipped with the passageway 14 that supplies cooling water to flow in cold pressing board 11 (the arrow direction in the figure indicates the flow direction of cooling water), passageway 14 is close to wrapping bag one side and is the curve distribution setting, is equipped with the water tank that supplies cooling water to passageway 14 in the frame, through the hose intercommunication between water tank and the passageway 14, because the hose has certain elasticity, does not influence cooling water entering channel 14 when consequently cold pressing board 11 removes.

The punching unit comprises a punching column 15 and a cylinder body 16 which are respectively positioned at the upper side and the lower side of the packaging bag, a supporting plate 17 for supporting the packaging bag is connected in the cylinder body 16 in a sliding manner, a third driving mechanism for driving the supporting plate 17 to slide is arranged on the rack, the third driving mechanism is a third hydraulic cylinder 18 in the embodiment, and the supporting plate 17 is connected with an output shaft of the third hydraulic cylinder 18 through a connecting rod 25. The cylinder body 16 is provided with a discharge port 19, the outer wall of the cylinder body 16 is fixedly connected with a guide plate 20, the supporting plate 17 is fixedly connected with a stop block 21 for closing the discharge port 19, and the discharge port 19 is connected with a recovery tank 22. The cylinder 16 is communicated with a guide pipe 23, two ends of the guide pipe 23 are respectively positioned at the upper side and the lower side of the cylinder 16, the air outlet end of the guide pipe 23 is opposite to the discharge hole 19, the guide pipe 23 is provided with a third one-way valve 24 which is in one-way conduction from the lower end of the guide pipe 23 to the upper end of the guide pipe 23 so as to prevent air from being sucked backwards, and the bottom of the cylinder 16 is provided with a fourth one-way valve which is in one-way conduction from the. The connecting rod 25 is connected with a first inverted L-shaped rack 26 (as shown in figure 4), the punching column 15 is connected with a second rack 27, and the rack is rotatably connected with a gear 28, two sides of which are respectively meshed with the first rack 26 and the second rack 27. The cutting unit comprises a cutter 29, a workbench 30 and a fourth hydraulic cylinder for driving the cutter 29 to move, a collecting box 31 is connected to the right side of the cutting unit, and the guide plate 20 is opposite to the collecting box 31. Be equipped with the switch board in the frame, the switch board that the brand was controlled for the bright, the model is GGD is selected for use to this embodiment, and motor, first pneumatic cylinder 3, second pneumatic cylinder 12, third pneumatic cylinder 18 and fourth pneumatic cylinder all are connected with the switch board electricity, carry out automatically controlled through the switch board, realize automated control.

During concrete implementation, through switch board starter motor, the motor will drive the transfer roller and rotate, is transmitted the wrapping bag by driving roller 1. The first hydraulic cylinder 3 is started through the control cabinet, and the first hydraulic cylinder 3 drives the hot pressing plate 2 to move up and down in a reciprocating manner; when the hot pressing plate 2 moves close to the packaging bag, the packaging bag is subjected to heat sealing treatment by contacting the heat sealing strip 4 with the packaging bag, the hot pressing plate 2 moves downwards relative to the piston 7 in the process, so that the pressure in the lower cavity of the cavity 6 is reduced, and under the action of the difference of the internal pressure and the external pressure, external air enters the cavity 6 through the second one-way valve; when the hot pressing plate 2 is reset after heat sealing treatment, the hot pressing plate moves upwards relative to the piston 7, so that the pressure in the lower cavity of the cavity 6 is increased, air in the lower cavity of the cavity 6 is blown to a packaging bag below the hot pressing plate 2 through the blowing pipe 9, the thermally sealed packaging bag is preliminarily cooled in time, the heat sealing position of the packaging bag is preformed, and then in the process of reaching the cooling unit under the action of the conveying unit, the pulling force generated by conveying is overcome, and the deformation of the packaging bag is avoided; when carrying out heat seal processing to the wrapping bag through hot pressboard 2, realize the precooling, need not to set up extra precooling mechanism, reach heat seal and precooling's dual effect, improved the efficiency of processing.

The packaging bag after heat sealing treatment and primary cooling reaches the cooling unit under the action of the conveying unit, the second hydraulic cylinder 12 is started through the control cabinet, the second hydraulic cylinder 12 drives the cold pressing plate 11 to be close to the packaging bag, the packaging bag is cooled again through the contact of the cold pressing strip 13 and the heat sealing position of the packaging bag, and meanwhile, the packaging bag is pressed flatly. In the process, cooling water is supplied into the channel 14 through the water tank for cooling, so that the heat seal position of the packaging bag is rapidly cooled and formed. Through twice cooling, can fully cool down to the wrapping bag, ensure that the wrapping bag can rapid prototyping, avoid it to take place deformation, fold to improve the quality of wrapping bag.

With reference to fig. 1 and 4, after the cooling and forming, the conveying unit conveys the packaging bag to the punching unit for punching, such as: the mouth is easy to tear. The third hydraulic cylinder 18 is started by the control cabinet, the third hydraulic cylinder 18 drives the connecting rod 25 to move upwards, the connecting rod 25 drives the supporting plate 17 to move upwards to be close to the packaging bag, meanwhile, the connecting rod 25 also drives the gear 28 to rotate clockwise, the gear 28 drives the second rack 27 to move downwards, and the second rack 27 drives the punching column 15 to move towards the packaging bag; when punching, the packaging bag is punched through the punching column 15, and the packaging bag is supported by the supporting plate 17. During the process, the pressure in the lower chamber of the cylinder 16 will decrease and outside air will enter the cylinder 16 via the fourth one-way valve. After the punching is finished, the produced excess materials are kept on the supporting plate 17, the supporting plate 17 is driven to reset downwards by the third hydraulic cylinder 18, air in the cylinder body 16 is blown to the discharge hole 19 through the guide pipe 23, the excess materials on the supporting plate 17 are blown out in the process, the guide plate 20 limits the excess materials to float in a mess, and the excess materials can smoothly enter the collecting box 31 to finish cleaning.

Subsequently, the conveying unit conveys the packaging bags to the cutting unit, a fourth hydraulic cylinder is started through a control cabinet, the fourth hydraulic cylinder drives the cutter 29 to cut the packaging bags, so that the continuous packaging bags are cut into single packaging bags, and the single packaging bags enter the collecting box 31 under the action of the conveying rollers, so that the whole bag making process of the packaging bags is completed.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that variations and modifications can be made by those skilled in the art without departing from the structure of the present invention. These should also be construed as the scope of the present invention, and they should not be construed as affecting the effectiveness of the practice of the present invention or the applicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a system bag device of flavouring wrapping bag, includes the frame, is equipped with conveying unit, heat seal unit, cooling unit and cutting unit in the frame, its characterized in that: the heat seal unit comprises a hot pressing plate and a first driving mechanism for driving the hot pressing plate to move, a heating element and a cavity are arranged in the hot pressing plate, a piston is connected in the cavity in a sealing and sliding mode, a piston rod is fixedly connected onto the piston, one end, far away from the piston, of the piston rod is fixedly connected onto the rack, a plurality of blowing pipes aligned with a packaging bag below the hot pressing plate are communicated onto the cavity, first check valves are arranged on the blowing pipes, and a second check valve is arranged on the cavity; the cooling unit comprises a cold pressing plate and a second driving mechanism for driving the cold pressing plate to move, and a channel for cooling water to flow is arranged in the cold pressing plate; be equipped with the unit of punching between cooling unit and the cutting unit, the unit of punching is including the post and the cylinder body of punching that are located the wrapping bag both sides respectively, and sliding connection has the backup pad that is used for supporting the wrapping bag in the cylinder body, is equipped with in the frame to be used for driving the gliding third actuating mechanism of backup pad, and it has the discharge gate to open on the cylinder body, is equipped with the dog that is used for sealing the discharge gate in the backup pad, and the intercommunication has the pipe on the cylinder body, and the.

2. The bag making apparatus for condiment packaging bags as recited in claim 1, wherein: the channels are distributed in a curve.

3. The bag making apparatus for condiment packaging bags as recited in claim 1, wherein: the hot pressing plate is detachably connected with a heat sealing strip on one side in contact with the packaging bag, and the cold pressing plate is detachably connected with a cold pressing strip corresponding to the heat sealing strip on one side in contact with the packaging bag.

4. The bag making apparatus for condiment packaging bags as recited in claim 3, wherein: the width of the cold pressing strip is larger than that of the heat sealing strip.

5. The bag making apparatus for condiment packaging bags as recited in claim 4, wherein: the punching machine is characterized in that a first rack is connected to the supporting plate, a second rack is connected to the punching column, and a gear with two sides respectively meshed with the first rack and the second rack is rotatably connected to the rack.

6. The bag making apparatus for condiment packaging bags as recited in claim 5, wherein: the discharge port is connected with a recovery tank.