CN216291535U - Vest type plastic bag outlet machine - Google Patents

Abstract

The utility model relates to a vest type plastic bag discharging machine which is used for discharging bags of vest type plastic bags and comprises a bearing support (1), a plastic bag guiding component, a bag discharging blocking mechanism and a controller, wherein the bag discharging blocking mechanism is used for arranging obstacles on a forward path of the vest type plastic bags during the non-bag discharging period. The plastic bag guiding component comprises an upper pressing cover plate (2), a driven shaft (4), a bag pressing guiding auxiliary shaft (7), a driving shaft (3) and a spring (23); the driven shaft (4) is connected between the two side plates of the upper gland plate (2) through a bearing (29) connected with a bearing fixing piece, and the bearing fixing piece and the bearing (29) can rotate around the movable connecting piece; rubber rings are arranged at the corresponding positions of the outer surfaces of the driven shaft (4) and the driving shaft (3). The utility model can improve the stability and reliability of the plastic bag conveying process.

Description

Vest type plastic bag outlet machine

Technical Field

The utility model relates to the technical field of automatic bag discharging machines, in particular to a plastic bag discharging machine.

Background

The unmanned bag outlet machine is a brand-new retail model product, is not limited by time and place, is unattended and can be served for 24 hours, not only provides great convenience for the life of people, but also saves the labor cost, and modern multi-way payment means comprise network electronic transaction and the like. The utility model of the plastic bag brings a plurality of convenient and sanitary lives for human beings, and greatly improves the efficiency in daily life; the plastic bag can replace other packing materials, such as paper, glass and the like, so as to reduce energy consumption.

However, there are a number of problems with current plastic bag vending machines.

The plastic bag is easy to generate static electricity, and the plastic bag can be adsorbed on the surfaces of other objects after the static electricity is generated, so that the normal bag discharge is influenced, and the bag clamping is easy to cause; in the prior various plastic bag discharging machines, the installation process and steps are complex and inconvenient for users to use in the initial installation process of plastic bags; in addition, after the bag is discharged, in the process that a user pulls away the plastic bag, the plastic bag is inclined due to insufficient fixing force of the plastic bag, and normal bag discharge is influenced; in addition, in the bag discharging process of the plastic bag, due to the fact that the rolling bag quality of the plastic bag roll is uneven and the rolling is uneven, the plastic bag is uneven in the bag discharging process, and the bag is blocked;

the existing automatic plastic bag selling device has high requirements on the types of plastic bags, can not sell plastic bags with various specifications, and generally needs a specially customized plastic bag to be matched with equipment to operate, so that the selling cost of a merchant is overhigh;

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a plastic bag discharging machine to improve the stability and reliability of a plastic bag conveying process. The technical scheme is as follows:

a vest-type plastic bag discharging machine takes a bag discharging end as the front end, and comprises a bearing support 1, a plastic bag guiding component, a bag discharging blocking mechanism and a controller, wherein the bag discharging blocking mechanism is used for setting barriers on a path where vest-type plastic bags advance during the non-bag discharging period,

the plastic bag guiding component comprises an upper pressing cover plate 2, a driven shaft 4, a bag pressing guiding auxiliary shaft 7, a driving shaft 3 and a spring 23;

the front end of the upper gland plate 2 is rotatably connected to the bearing bracket 1 through a rotating shaft 24, and the edge of the rear end of the upper gland plate 2 is upwards and smoothly tilted; side plates are fixed on two sides of the front end of the upper pressure cover plate 2, and a bolt opening 14 is formed in the upper pressure cover plate 2;

the driven shaft 4 and the bag pressing guide auxiliary shaft 7 are connected between the side plates at the rear end of the upper pressing cover plate 2, the driving shaft is connected to the bearing support 1, the driven shaft 4, the driving shaft 3 and the bag pressing guide auxiliary shaft 7 are parallel to each other, when the upper pressing cover plate 2 is in a closed state, the driven shaft 4 is located at the foremost end, and the driving shaft 3 is located between the driven shaft 4 and the bag pressing guide auxiliary shaft 7;

the driven shaft 4 is connected between two side plates of the upper gland plate 2 through a bearing 29 connected with a bearing fixing piece, one end of the bearing fixing piece is a free end, and the other end of the bearing fixing piece is connected to the side plates of the upper gland plate 2 through a movable connecting piece, so that the bearing fixing piece and the bearing 29 can rotate around the movable connecting piece; rubber rings are arranged at the corresponding positions of the outer surfaces of the driven shaft 4 and the driving shaft 3; one end of the spring 23 is fixedly connected to one end of the bearing fixing piece, which can rotate around the movable connecting piece, the other end of the spring is fixed on the side plate of the upper gland plate 2, when the upper gland plate 2 is in a closed state, two ends of the spring 23 are respectively positioned at two sides of the driving shaft 3, and the spring 23 is stretched, so that the driving shaft 3 and the driven shaft 4 are tightly attached.

Further, the other end of the bearing fixing piece and the corresponding position of the side plate of the upper gland plate 2 are provided with through holes for the movable connecting piece to pass through, and the movable connecting piece can rotate inside the through holes. The movable connecting piece is a flat head screw 30.

Further, the plastic bag guiding component also comprises a support auxiliary shaft 5, a support guide auxiliary shaft 6 and a guide plate 13, wherein the support auxiliary shaft 5 and the support guide auxiliary shaft 6 are fixed on the bearing support 1; the leading-out plate 13 is arranged at the position along the tangent plane of the driving shaft 3 and the driven shaft 4; the bag outlet route of the vest-type plastic bag is as follows: sequentially passes through a support auxiliary shaft 5, a support guide auxiliary shaft 6, a bag pressing guide auxiliary shaft 7, a driving shaft 3, a driven shaft 4 and a guide-out plate 13.

The utility model adopts the matching of the auxiliary shafts with three different heights and the transmission wheel, and the lifting type pressing plate, so that the stability and the reliability of the plastic bag conveying process are improved, and the whole set of device has good adaptability, compatibility and simplicity, and is particularly suitable for vest type plastic bags; due to the design of the open-close type plastic bag placing mechanism, the process of installing the plastic bag is simplified, and the convenience of use of a user is enhanced.

Drawings

FIG. 1 is a front view of the overall structure of the automatic bag discharging machine for plastic bags according to the present invention

FIG. 2 is a schematic view of the general structure of the novel automatic bag discharging machine for plastic bags when the upper cover plate is opened

FIG. 3 is a schematic view of the upper cover plate of the novel automatic plastic bag discharging machine of the present invention

FIG. 4 is a general structural bottom view of the novel automatic bag discharging machine for plastic bags of the present invention

FIG. 5 is a general structural top view of the novel automatic discharging machine for plastic bags of the present invention

FIG. 6 is a schematic side view of a driving motor of the novel automatic bag discharging machine for plastic bags according to the present invention

FIG. 7 is a schematic view of the present invention when the plastic bag is installed after the upper cover plate of the automatic bag discharging machine is opened

FIG. 8 is a left side sectional view of the novel automatic bag discharging machine for plastic bags according to the present invention after the plastic bags are mounted

FIG. 9 is a right side sectional view of the novel automatic bag discharging machine for plastic bags according to the present invention after the plastic bags are mounted

FIG. 10 is a schematic view of the installation of the plastic bag roll of the novel automatic bag discharging machine for plastic bags according to the present invention

The drawings illustrate the following:

1. the device comprises a bearing support, 2. an upper pressing cover plate, 3. a driving shaft, 4. a driven shaft, 5. a supporting auxiliary shaft, 6. a supporting guide auxiliary shaft, 7. a bag pressing guide auxiliary shaft, 8. a horizontal telescopic electromagnetic lock, 9. a vertical telescopic electromagnetic lock, 10. a blocking bolt, 11. an empty bag detection ultrasonic sensor, 12. a plastic bag gap detection ultrasonic sensor, 13. a guide-out plate, 14. a bolt port, 15. a driving synchronous wheel, 16. a driving motor, 17. a flat machine screw, 18. a driven synchronous wheel, 19. a driving belt, 20. a rubber ring, 21. a plastic bag roll, 22. a self-locking port, 23. a spring, 24. a rotating shaft, 25. a limiting plate, 26. a limiting groove, 27. an infrared correlation device, 28. a separating plate, 29. a bearing and 30. a flat head screw.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. The specific embodiments described herein are merely illustrative of the present invention and do not limit the scope of the utility model.

As shown in fig. 1, which is a schematic diagram of the overall structure of an automatic bag discharging machine for a press-plate flip-top plastic bag of the present invention, the automatic bag discharging machine mainly comprises a bearing support 1, a plastic bag guiding component, a bag discharging blocking mechanism and a controller;

as shown in fig. 3, which is a schematic view of the upper gland plate and its components of the patent of the present invention, the edge of one end of the upper gland plate 2 is tilted up smoothly, so that the plastic bag can be guided into the box and can be lifted by the worker conveniently; the two sides of the other end of the upper gland plate 2 are provided with side plates with notches, the two sides of the notches are respectively provided with a driven shaft 4 and a pressing bag guide auxiliary shaft 7 from outside to inside, the notches exist because a driving shaft 3 is arranged inside the bearing support 1, and iron plates on the two sides need to avoid the driving shaft 3 in the closing process of the upper gland plate 2, so the notches are designed for the iron plates on the two sides; the driven shaft 4 is arranged between the iron plates at the two sides of the upper gland plate 2 through a bearing 29 and a bearing fixing piece, one end of the bearing fixing piece is a free end, and the other end of the bearing fixing piece is connected to the side plate of the upper gland plate 2 through a movable connecting piece, so that the bearing fixing piece and the bearing 29 can rotate around the movable connecting piece; through holes for the movable connecting pieces to pass through are formed in the other end of the bearing fixing piece and the corresponding positions of the side plates of the upper gland plate 2, and the movable connecting pieces can rotate inside the through holes. The movable connection member of this embodiment is a grub screw 30. The lower end of the bearing 29 is connected to the bearing bracket 1 by a flat head screw 30, the upper end is completely movable, the flat machine screw 17 is arranged at the upper end of the bearing 29, the flat head screw 30 at the lower end of the bearing 29 is used as the central point of the rotation of the bearing, the bearing 29 can rotate around the lower end, and therefore the whole driven shaft 4 can rotate around the lower ends of the bearings 29 at two sides; a shorter spring 23 is hung on the upper end flat screw 17 of the bearing 29 and connected to a screw beside the bag pressing guide auxiliary shaft 7, after the upper pressing cover plate 2 is rotated and closed, the shorter spring 23 is stressed and extended to provide certain pressure, and the spring 23 can pull the upper end of the bearing 29 to be pressed obliquely downwards, so that the driving shaft 3 and the rubber ring 20 on the driven shaft 4 can be tightly attached together; as shown in fig. 3 and 5, three hollow designs are arranged above the upper cover plate 2, when the upper cover plate 2 is in a closed state, a blocking bolt is arranged on the bearing support 1 below the bolt opening 14 in a strip shape, a plastic bag notch detection ultrasonic sensor 12 is arranged below the hollow behind the bolt opening 14, an empty bag detection ultrasonic sensor 11 is arranged below the other hollow, and the hollow position and the empty bag detection ultrasonic sensor 11 are both closer to the edge position of the chassis and used for detecting a handle part of a plastic bag and identifying whether the plastic bag exists; the two sensors are both arranged on the middle cross beam of the bearing bracket 1;

as shown in fig. 4, which is a bottom view of the present invention, the bearing bracket 1 is composed of iron plates on two sides and a cross beam on the lower side, the iron plates are installed on two sides of the cross beam in parallel, and the bearing bracket 1 is used for installing and fixing other parts; as shown in fig. 2, which is a schematic view of the patent of the present invention when the upper gland plate is opened, a support auxiliary shaft 5 and a support guide auxiliary shaft 6 are installed on both sides of the cross beam and located on the tops of the iron plates on both sides; the upper gland plate 2 is connected with iron plates at two sides of the bearing support 1 by using a rotating shaft 24 at the outer side of the driven shaft 4, after the upper gland plate 2 is closed, the rubber rings 20 which are non-uniformly distributed on the driven shaft 4 can be tightly attached to the rubber rings 20 which are correspondingly and uniformly distributed on the driving shaft 3 in the bearing support 1 by virtue of the elasticity of a spring 23 (the plastic bag handles at two sides pass through the part, the rubber rings 20 are densely distributed, and the middle part is relatively sparsely distributed), and a guide-out plate 13 is arranged along the section of the upper gland plate and the rubber rings, so that the plastic bags are directly guided out of the case by the guide-out plate 13 after being taken out by the driving and driven shafts; as shown in fig. 5, the figure is a side iron plate of the bearing bracket 1, the driving motor 16 is installed at the inner side of the iron plate, the driving motor 16 is extended out of the iron plate in a bearing manner, the driving synchronizing wheel 15 is installed, a driven synchronizing wheel 18 is installed on the iron plate, the driven synchronizing wheel 18 and the inner side of the iron plate are driving shafts 3, and the driven synchronizing wheel 18 is connected with the driving synchronizing wheel 15 by using a transmission belt 19; therefore, the driving motor 16 is powered to rotate the driving shaft and the driven shaft.

Each part of the device can be divided into a plastic bag guiding part, a plastic bag transmission system and a detection and safety protection part according to the function of the device;

the plastic bag guide member includes: the device comprises an upper pressure cover plate 2, a support auxiliary shaft 5, a support guide auxiliary shaft 6, a bag pressing guide auxiliary shaft 7 and a guide plate 13; one end of the upper gland plate 2, which is close to the leading-out plate 13, is connected with the bearing bracket 1 through rotating shafts 24 on two sides of the driven shaft 4, and the other side of the upper gland plate 2 is lifted to rotate around the rotating shafts 24 on two sides; the supporting auxiliary shafts 5 and the supporting guide auxiliary shafts 6 are arranged above the bearing support 1 in parallel and are distributed on two sides of the cross beam, and a proper distance between the two auxiliary shafts and the upper gland plate 2 forms a conveying channel of plastic bags among the two auxiliary shafts; a driven shaft 4 and a pressing bag guide auxiliary shaft 7 are arranged in the upper pressing cover plate 2; after the upper pressing cover plate 2 is rotated and closed, the bag pressing guide auxiliary shaft 7 rotates to a position between the driving driven shaft and the supporting guide auxiliary shaft 6, and the plastic bag can be pressed tightly to be in an irregular M shape in the case; the plastic bag is driven by the driving and driven wheel to be conveyed out through the guide-out plate 13;

the plastic bag transmission system comprises: the device comprises a driving shaft 3, a driven shaft 4, a driving synchronous wheel 15, a driving motor 16, a flat machine screw 17, a driven synchronous wheel 18, a transmission belt 19, a rubber ring 20, a spring 23, a rotating shaft 24, a bearing 29 and a flat head screw 30; the driving shaft 3 is installed in the bearing support 1, the rubber rings 20 are unevenly distributed on the driving shaft 3 and the driven shaft 4, the driven shaft 4 is connected between two side plates of the upper gland plate 2 through a flat head screw 30 at the lower end of a bearing 29, the flat head screw 30 at the lower end of the bearing 29 is connected on the upper gland plate 2 and can rotate, the upper end of the bearing 29 is not connected with the upper gland plate 2 and can completely move, a flat machine screw 17 is installed, the flat head screw 30 at the lower end of the bearing 29 is used as a central point of the rotation of the bearing 29, and the bearing 29 can rotate around the lower end; a shorter spring 23 is hung on the upper end flat machine screw 17 of the bearing 29 and connected to a screw beside the bag pressing guide auxiliary shaft 7, after the upper pressing cover plate 2 is rotated and closed, the rubber ring on the driving shaft 3 is abutted against the rubber ring on the driven shaft 4, the shorter spring 23 on two sides of the driven shaft 4 is stressed and extended to provide certain pressure, the spring 23 can pull the upper end of the bearing 29 to press downwards in an inclined mode, so that the driving shaft 3 and the rubber ring 20 on the driven shaft 4 can be well attached together, and proper pressure can be provided for a plastic bag so as to provide friction force; as shown in fig. 1, the driving motor 16 is installed on the right side of the bearing support 1 and is placed inside the bearing support 1, the shaft of the driving motor 16 extends to the outside of the bearing support 1 and is connected with the driving synchronizing wheel 15, the driven synchronizing wheel 18 is located on the same side of the driving synchronizing wheel 15 and is connected with the driving synchronizing wheel through the transmission belt 19, the driving shaft 3 is driven to rotate through the transmission belt 19 after the motor supplies power, the driving shaft 3 and the driving shaft 3 depend on the pressure of the spring 23, the driving shaft 3 can drive the driving shaft 3 to rotate in the reverse direction, and the rubber ring 20 on the driving shaft and the driven shaft can drive the plastic bag to move forward through friction.

The detection and safety protection component comprises: the device comprises a horizontal telescopic electromagnetic lock 8, a vertical telescopic electromagnetic lock 9, a blocking bolt 10, an empty bag detection ultrasonic sensor 11, a plastic bag notch detection ultrasonic sensor 12, a bolt port 14, a self-locking port 22, a limiting plate 25, a limiting groove 26, an infrared correlation device 27 and a separation plate 28; as shown in fig. 1, a blocking bolt 10 is installed between the support auxiliary shaft 5 and the support guide auxiliary shaft 6 and close to one side of the support guide auxiliary shaft 6, and an upper gland plate 2 above the blocking bolt 10 is a bolt opening 14 and is a channel for blocking the bolt 10 from moving up and down; the right back of the blocking bolt 10 is fixedly connected with a vertical telescopic electromagnetic lock 9 through a right-angle iron sheet, and after the electromagnetic lock is powered on and off, a lock head is telescopic so as to drive the blocking bolt 10 to move; the vertical and parallel limiting plates 25 are arranged on two sides of the vertical telescopic electromagnetic lock 9, limiting grooves 26 are respectively formed in the positions, corresponding to the limiting plates 25, of the blocking bolt 10, the blocking bolt 10 forms a track moving up and down under the matching of the limiting grooves 26 and the limiting plates 25, and the deviation of a running track of the blocking bolt 10 after long-time work can be effectively prevented; a horizontal telescopic electromagnetic lock 8 is arranged on the right side of the limiting plate 25, the lock head can extend into the self-locking port 22 of the blocking bolt 10 when being extended, and the motion of the blocking bolt 10 is not influenced when the lock head is contracted; an infrared correlation device 27 is arranged at the left side of the limit plate 25, a smaller isolation plate 28 is also arranged at the left side of the blocking bolt 10, the isolation plate 28 and the blocking bolt 10 are arranged at a vertical angle, and the isolation plate 28 can block the signal of the infrared correlation device 27 only after the blocking bolt 10 falls down so as to detect the position state of the blocking bolt 10; the parts of the upper pressure cover plate 2 above the empty bag detection ultrasonic sensor 11 and the plastic bag notch ultrasonic sensor 12 are hollowed out, and the plastic bag notch ultrasonic sensor 12 is arranged in the middle of a cross beam of the bearing support 1 and used for detecting a notch of a vest type plastic bag; an empty bag detecting ultrasonic sensor 11 is installed at the left side of the cross beam of the bearing bracket 1 for detecting the handle portion of the vest type plastic bag to check whether there is an inventory.

The following detailed description is provided with reference to the drawings:

as shown in fig. 1, in the normal working state, the upper gland plate 2 is closed, and the plastic bag is conveyed in an irregular 'M' -shaped track formed by the auxiliary supporting shaft 5, the auxiliary supporting guide shaft 6, the auxiliary bag pressing guide shaft 7, the driving shaft 3, the driven shaft 4 and the guide-out plate 13; after the driving motor 16 supplies power, the driving synchronizing wheel 15 drives the driven synchronizing wheel 18 to rotate through the driving belt 19, and the driven synchronizing wheel 18 drives the rubber rings 20 on the driving shaft 3 and the driven shaft 4 to rub to drive the plastic bag to move forward.

As shown in fig. 2, the blocking bolt 10 is located between the support secondary shaft 5 and the support guide secondary shaft 6, close to one side of the support guide secondary shaft 6; the up-and-down movement of the blocking bolt 10 is controlled by the logical cooperation of the horizontal telescopic electromagnetic lock 8 and the vertical telescopic electromagnetic lock 9, and the track for blocking the up-and-down movement of the blocking bolt 10 is jointly determined by the limiting grooves 26 at two sides of the blocking bolt 10 and the limiting plates 25 arranged at two sides of the vertical telescopic electromagnetic lock 9, so that the situation that the blocking bolt 10 deviates from a normal track and cannot normally enter and exit from the bolt port 14 after long-time use is prevented; the extension and retraction of the lock heads of the horizontal telescopic electromagnetic lock 8 and the vertical telescopic electromagnetic lock 9 are controlled by electromagnetism and an internal spring together, but have opposite logic extension and retraction relations, and the two electromagnetic locks are controlled by adopting the following double logic matching: after receiving a bag outlet signal, the horizontal telescopic electromagnetic lock 8 is powered on, the lock head of the horizontal telescopic electromagnetic lock retracts to go out of the lock opening 22, and the vertical telescopic electromagnetic lock 9 is also powered on simultaneously, so that the spring in the vertical direction has enough resilience strength, the plastic bag is prevented from being attached to the blocking bolt 10 and having large descending resistance, then the vertical telescopic electromagnetic lock 9 is powered off, the blocking bolt 10 is prevented from descending under the traction of the spring tension of the lock head, then the horizontal telescopic electromagnetic lock 8 is powered off, the lock head of the horizontal telescopic electromagnetic lock is jacked back to the blocking bolt 10, and at the moment, a channel for the plastic bag to advance is opened; after one-time bag discharging is finished, the vertical telescopic electromagnetic lock 9 is electrified, the lock head of the vertical telescopic electromagnetic lock pushes the blocking bolt 10 to ascend along the limiting groove 26, the blocking bolt 10 is inserted into a gap in the middle of the vest type plastic bag, and a next plastic bag advancing channel is blocked; after the bolt 10 is stopped from rising, the horizontal telescopic electromagnetic lock 9 is also in a power-off state, the lock head of the horizontal telescopic electromagnetic lock 8 extends under the action of the spring force of the electromagnetic lock, the lock head automatically slides into the self-locking port 22 of the bolt 10, the vertical telescopic electromagnetic lock 9 does not supply power at the moment, and due to the cooperation of the horizontal telescopic electromagnetic lock 8 and the self-locking port 22, the bolt 10 can be prevented from falling due to self gravity and a plastic bag advancing channel can be opened under the power-off state of the electromagnetic lock, so that the situation that redundant plastic bags are not conveyed out is guaranteed, and the situation that people maliciously pull out the internal plastic bags can be prevented; the double-electromagnetic structure adopted by the telescopic electromagnetic lock can reduce the energy consumption of the bolt in the telescopic process, and no matter what state the bolt is, the long-time electric energy consumption is not needed, so that the energy consumption is saved. An infrared correlation device 27 is installed on the left side of the limiting plate 25, the isolation plate 28 is placed on the left side boundary of the blocking bolt 10 at a vertical angle, the isolation plate 28 can block the signal of the infrared correlation device 27 only after the blocking bolt 10 falls down, the state of the blocking bolt 10 is detected, the up-down state of the blocking bolt 10 is detected in real time, and the fault that the blocking bolt 10 does not normally move up and down is avoided.

As shown in fig. 6, which is a schematic view of the installation side of the driving motor of the present invention, the installation positions of the four installation screw holes of the driving motor 16 are laterally movable, and the design is to flexibly install the driving motor 16 so as to better adapt to different types of transmission belts 19, which facilitates the later maintenance and repair of the equipment;

as shown in fig. 7, which is a schematic diagram of the process of installing the plastic bag according to the present invention, after the upper gland plate 2 is opened around the bearing 24, the plastic bag is laid on the auxiliary support shaft 5 and the auxiliary support guide shaft 6, the plastic bag is pulled to the position of the driving shaft 3 along the curved surface of the auxiliary support guide shaft 6, and the handle portion of the plastic bag is placed on the guide plate 13; after the plastic bag is placed, as shown in fig. 8 and 9, the proper distance between the closed upper gland plate 2 and the auxiliary support shaft 5 and between the auxiliary support guide shaft 6 and the upper gland plate 2 forms a conveying channel of the plastic bag, the channel can smooth out the folded plastic bag, in the conveying process, the upper gland plate 2 is in contact with the upper layer of the plastic bag, the auxiliary support shaft 5 and the auxiliary support guide shaft 6 are in contact with the lower layer of the plastic bag, the upper surface and the lower surface of the plastic bag channel can effectively guide out the static electricity of the plastic bag through the ground, the plastic bag bending phenomenon caused by the static electricity of the plastic bag is avoided, and the normal conveying of the plastic bag is ensured.

As shown in fig. 8 and 9, the bag pressing guide auxiliary shaft 7 of the closed upper cover plate 2 can press the plastic bag inside the case, so that the plastic bag can be prevented from curling inside the case; the active and passive shafts in the case are matched with the three auxiliary shafts to form irregular M-shaped zigzag guide of the plastic bag in the case, so that the bag outlet wrap angle of the plastic bag can be increased, the tensile capacity during bag pulling is increased, the resistance of a customer during bag pulling can be effectively increased, and the customer can conveniently separate the purchased plastic bag from the plastic bag in the case; in the closed case, the driving shaft and the driven shaft are pressed tightly by the spring 23, the driving shaft 3 rotates clockwise under the drive of the driving motor 16 as shown in fig. 6, the driven shaft 4 rotates in the opposite direction to roll and convey the plastic bag by the pressure and the friction between the rubber ring 20 on the driving shaft and the plastic bag, and the two shafts are mutually matched to stably convey the plastic bag.

As shown in fig. 10, for the installation of the plastic bag roll of the present invention, the plastic bag roll 21 can be placed at the rear side or above the cabinet, the tail of the upper gland plate 2 is designed to be bent, and if the plastic bag roll 21 is placed above the cabinet, the guide plate can effectively transfer the plastic bag on the cylinder to the inside of the cabinet, thereby efficiently guiding the plastic bag to be transferred.

Claims (4)

1. A vest-type plastic bag discharging machine comprises a bearing support (1) and a plastic bag guiding part, and is characterized in that,

the plastic bag guiding component comprises an upper pressing cover plate (2), a driven shaft (4), a bag pressing guiding auxiliary shaft (7), a driving shaft (3) and a spring (23);

the front end of the upper gland plate (2) is rotatably connected to the bearing bracket (1) through a rotating shaft (24), and the edge of the rear end of the upper gland plate (2) is upwards and smoothly tilted; side plates are fixed on two sides of the front end of the upper pressure cover plate (2), and a bolt opening (14) is formed in the upper pressure cover plate (2);

the driven shaft (4) and the bag pressing guide auxiliary shaft (7) are connected between side plates at the rear end of the upper pressing cover plate (2), the driving shaft is connected to the bearing support (1), the driven shaft (4), the driving shaft (3) and the bag pressing guide auxiliary shaft (7) are parallel to each other, when the upper pressing cover plate (2) is in a closed state, the driven shaft (4) is located at the foremost end, and the driving shaft (3) is located between the driven shaft (4) and the bag pressing guide auxiliary shaft (7);

the driven shaft (4) is connected between two side plates of the upper gland plate (2) through a bearing (29) connected with a bearing fixing piece, one end of the bearing fixing piece is a free end, and the other end of the bearing fixing piece is connected to the side plates of the upper gland plate (2) through a movable connecting piece, so that the bearing fixing piece and the bearing (29) can rotate around the movable connecting piece; rubber rings are arranged at the corresponding positions of the outer surfaces of the driven shaft (4) and the driving shaft (3); one end of the spring (23) is fixedly connected to one end, capable of rotating around the movable connecting piece, of the bearing fixing piece, the other end of the spring is fixed to a side plate of the upper gland plate (2), when the upper gland plate (2) is in a closed state, two ends of the spring (23) are located on two sides of the driving shaft (3) respectively, and the spring (23) is stretched, so that the driving shaft (3) and the driven shaft (4) are tightly attached to each other.

2. The bag discharging machine according to claim 1, wherein a through hole for the movable connecting piece to pass through is arranged at the other end of the bearing fixing piece and the corresponding position of the side plate of the upper gland plate (2), and the movable connecting piece can rotate inside the through hole.

3. A bag outlet machine according to any one of claims 1 or 2, wherein the movable connecting member is a grub screw (30).

4. The bag discharging machine according to claim 1, wherein the plastic bag guiding means further comprises a support auxiliary shaft (5), a support guide auxiliary shaft (6) and a guide plate (13), the support auxiliary shaft (5) and the support guide auxiliary shaft (6) are fixed on the bearing support (1); the leading-out plate (13) is arranged at the position along the section of the driving shaft (3) and the driven shaft (4); the bag outlet route of the vest-type plastic bag is as follows: sequentially passes through a support auxiliary shaft (5), a support guide auxiliary shaft (6), a bag pressing guide auxiliary shaft (7), a driving shaft (3), a driven shaft (4) and a guide-out plate (13).

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