Shopping bag discharging machine and bag discharging method

Abstract

The present invention discloses a shopping bag dispensing machine and a bag dispensing method for automatically delivering shopping bags, comprising a pressure roller assembly, a bag clamping assembly, a pushing device assembly and a bottom plate, wherein the pressure roller assembly, the pushing device assembly and the bag clamping assembly are arranged on the bottom plate, the pressure roller assembly comprises a movable pressure roller and a fixed pressure roller, the bag clamping assembly comprises a bag clamping sheet and a bag clamping side plate, the bag clamping sheet and the movable pressure roller are arranged on the pushing device assembly, the movable pressure roller is pressed against the fixed pressure roller by extension of the pushing device assembly, and the fixed pressure roller rolls to deliver the shopping bag, and when the pushing device assembly contracts, the bag clamping sheet clamps the shopping bag and presses it against the bag clamping side plate, so that the customer can tear off the shopping bag conveniently, the bag dispensing machine realizes the linkage between the movable pressure roller and the bag clamping sheet, so that the pressure roller assembly and the bag clamping assembly respectively clamp and release the shopping bag, so that the shopping bag is in a state of rolling out the bag and clamping and tearing the bag, the structure is simple and reliable, and the shopping bag can be automatically corrected to ensure that no bag rolling failure occurs when the bag is discharged next time.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent retail equipment, and in particular to a shopping bag dispensing machine and a bag dispensing method. Background Art

[0002] With the continuous development of smart retail, vending machines have become widely used in the retail industry, providing customers with shopping bags that can conveniently package the goods for vending, giving them a good shopping experience. Existing vending machines provide shopping bags in two ways: one is to place the bags on the shelf for customers to take, which can lead to excessive bag consumption, increased costs, and environmental problems. Alternatively, some vending machines use bag dispensers, but these existing dispensers are complex and unreliable, prone to bag rolling or jamming, and increase maintenance workload, defeating the original purpose of unmanned vending.

[0003] Therefore, it is necessary to develop a shopping bag discharging machine and a bag discharging method which are simple in structure, reliable and can automatically correct the deviation of shopping bags. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a shopping bag discharging machine and a bag discharging method with a simple structure and the ability to achieve automatic deviation correction, in view of the defects of the prior art.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: a shopping bag dispensing machine is arranged in an automatic vending machine, which is used to automatically deliver shopping bags, and includes a pressure roller assembly, a bag clamping assembly and a bottom plate. The bag clamping assembly is arranged on the bottom plate and is used to clamp the shopping bags. The pressure roller assembly is arranged above the bag clamping assembly and is used to roll and deliver the shopping bags.

[0006] Preferably, the bag clamping assembly includes a bag clamping side plate and a plurality of bag clamping pieces, the bag clamping side plate is arranged on the bottom plate, and the bag clamping piece is arranged on one side of the bag clamping side plate. The shopping bag passes between the clamping side plate and the bag clamping piece, and the shopping bag can be pressed against the bag clamping side plate by moving the bag clamping piece.

[0007] Preferably, the pressure roller assembly includes a fixed pressure roller, a fixed pressure roller bracket and a movable pressure roller, the fixed pressure roller bracket is arranged on the bottom plate, the fixed pressure roller is installed on the fixed pressure roller bracket, and the movable pressure roller is arranged on one side of the fixed pressure roller. The shopping bag passes between the fixed pressure roller and the movable pressure roller, and the shopping bag can be pressed against the fixed pressure roller by the movement of the movable pressure roller.

[0008] Preferably, it further includes a pushing device assembly, which includes a pushing motor and a movable bracket. The pushing motor is arranged on the bottom plate, and the movable bracket is connected to the pushing motor. The pushing motor drives the movable bracket to push the bag clamping assembly to move, thereby clamping the shopping bag.

[0009] Preferably, one end of the bag clamping piece is fixed on the movable bracket, and the bag clamping piece is controlled to clamp and release the shopping bag by moving the pushing device assembly. The movable pressing roller is provided on the movable bracket, and the shopping bag is pressed against the fixed pressing roller by moving the pushing device assembly.

[0010] Preferably, the bag clamping side panels form a bag clamping frame, and the frame structure is more conducive to the shopping bag passing through the bag clamping assembly. The bag clamping frame is provided with a bag clamping opening toward the side wall of the bag clamping piece, and the bag clamping piece passes through the bag clamping opening and is pressed onto the bag clamping side panels.

[0011] Preferably, the device further comprises a switch, which comprises a first switch and a second switch respectively arranged on both sides of the bag clamping side plate. The first switch and the second switch are used to control the position of the pushing device assembly.

[0012] Preferably, the bag clamping piece includes a bag clamping surface, a first switch surface, and a second switch surface. The bag clamping surface is arranged opposite to the bag clamping side plate, the first switch surface is opposite to the first switch, and the second switch surface is opposite to the second switch. During the movement of the bag clamping piece, the position of the pushing device is controlled by touching the first switch and the second switch.

[0013] Preferably, it further comprises a color mark sensor, which is arranged on the bottom plate and faces the shopping bag. By scanning a specific color mark on the shopping bag, the pressure roller assembly is controlled to send the shopping bag to a suitable position.

[0014] A method for discharging shopping bags from a shopping bag discharging machine comprises the following steps:

[0015] Step 1) The shopping bag passes between the movable pressing roller and the fixed pressing roller, and then passes between the bag clamping frame and the bag clamping sheet;

[0016] Step 2) starting the push motor to drive the movable bracket to move toward the first switch, thereby driving the movable pressing roller and the bag clamping piece to move synchronously;

[0017] Step 3) When the first switch surface touches the first switch, the motor stops, the movable pressure roller presses the shopping bag onto the fixed pressure roller, and the bag clamping surface is completely separated from the bag clamping frame, and the shopping bag is now in the bag-out state;

[0018] Step 4) The movable pressing roller starts to rotate, rolling the shopping bag out of the bag discharging machine;

[0019] Step 5) When the color mark sensor scans the specific color mark on the shopping bag, the movable pressing roller stops rotating, completing the bag discharge action;

[0020] Step 6) The push motor is started again, driving the movable bracket to move toward the second switch, driving the movable pressure roller and the bag clamping plate to move synchronously. During the movement, the movable pressure roller separates from the fixed pressure roller, and the bag clamping plate is not yet clamped with the bag clamping frame. The shopping bag is not clamped or pressed and automatically moves vertically downward under the action of gravity, thereby achieving automatic deviation correction of the shopping bag.

[0021] Step 7) When the second switch surface touches the second switch, the motor stops, the movable pressing roller and the fixed pressing roller are completely separated, and the bag clamping surface presses the shopping bag tightly against the bag clamping frame. The bag is now in a clamping state, and the customer can tear off the shopping bag.

[0022] Step 8) The pushing motor is started again to drive the movable bracket to move toward the first switch, driving the movable pressure roller and the bag clamping plate to move synchronously. During the movement, the bag clamping frame and the bag clamping plate are separated, and the movable pressure roller and the fixed pressure roller are not yet pressed tightly. The shopping bag is not clamped or pressed at all and automatically moves vertically downward under the action of gravity, realizing automatic deviation correction of the shopping bag again. In this way, the cycle of bag discharge, deviation correction, bag clamping, and deviation correction is carried out.

[0023] The beneficial effects of the present invention are:

[0024] (1) The movable pressing roller and the bag clamping piece are arranged on a movable bracket and are driven by a driving motor to realize linkage. The driving device is simple and reliable.

[0025] (2) When the movable pressing roller is pressed against the fixed pressing roller, the bag clamping sheet and the bag clamping side plate are separated, and the shopping bag can be smoothly rolled out of the bag;

[0026] (3) When the movable pressing roller is separated from the fixed pressing roller, the bag clamping plate presses the bag clamping side plate and clamps the shopping bag, and the customer can tear off the shopping bag;

[0027] (4) During the separation process between the movable pressing roller and the fixed pressing roller, the bag clamping sheet has not yet pressed the bag clamping side plate, and the shopping bag is not clamped and pressed vertically downward, which can achieve self-correction and reduce the chance of bag rolling;

[0028] (5) Use the color mark sensor to scan the specific color mark on the shopping bag, control the shopping bag to be delivered to the correct position, and ensure that the customer can tear off the shopping bag smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the shopping bag dispensing machine of the present invention;

[0030] Figure 2 It is a partial three-dimensional schematic diagram of the shopping bag discharging machine of the present invention;

[0031] Figure 3 It is a partial top view schematic diagram of the shopping bag discharging machine of the present invention;

[0032] Figure 4It is a three-dimensional schematic diagram of the bag clamping assembly of the shopping bag discharging machine of the present invention.

[0033] In the figure, 200 is the bag clamping assembly, 400 is the pressure roller assembly, 500 is the pushing device assembly, 10 is the bottom plate, 11 is the column, 12 is the crossbeam, 13 is the shopping bag roller, 2 is the bag clamping piece, 21 is the first switch surface, 22 is the second switch surface, 23 is the bag clamping surface, 30 is the bag clamping side plate, 31 is the bag clamping mouth, 32 is the bag clamping friction plate, 33 is the bag clamping frame, 41 is the fixed pressure roller, 42 is the movable pressure roller, 43 is the fixed pressure roller bracket, 45 is the pressure roller motor, 46 is the bag feeding guide rail, 50 is the movable bracket, 51 is the pushing motor, 52 is the motor push rod, 53 is the guide optical axis, 54 is the movable pressure roller bracket, 61 is the first switch, 62 is the second switch, and 7 is the color mark sensor. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Reference Figure 1 and Figure 3 As shown, the present invention provides a shopping bag dispensing machine, which is arranged in an automatic vending machine and is used to automatically dispense shopping bags. The machine comprises a pressure roller assembly 400, a bag clamping assembly 200 and a bottom plate 10. The bag clamping assembly 200 is arranged on the bottom plate and is used to clamp the shopping bags. The pressure roller assembly 400 is arranged above the bag clamping assembly 400 and is used to roll and dispense the shopping bags. A column 11 is provided on the bottom plate 10, and a crossbeam 12 is provided above the column. A shopping bag roller 13 spans the crossbeam 12. Rolled shopping bags are inserted into the shopping bag roller 13. A bag outlet 8 is provided on the bottom plate 10. The shopping bags pass through the bag inlet guide rail 46 from above the bag dispensing machine, pass through the pressure roller assembly 400 and the bag clamping assembly 200, and are then dispensed from the bag outlet 8 to the bottom of the bottom plate 10. Customers tear off the shopping bags from the bottom of the bottom plate 10.

[0036] The bag clamping side plate 30 is arranged on the bottom plate 10 at the bag outlet 8 position, and the bag clamping piece 2 is arranged on one side of the bag clamping side plate 30. The shopping bag passes between the clamping side plate 30 and the bag clamping piece 2. The shopping bag can be pressed against the bag clamping side plate 30 by moving the bag clamping piece 2. When the shopping bag is pressed, it is in a state to be torn off by the customer.

[0037] The pressure roller assembly 400 includes a fixed pressure roller 41, a fixed pressure roller bracket 43 and a movable pressure roller 42. The fixed pressure roller bracket 43 is set on the base plate 10, the fixed pressure roller 41 is installed on the fixed pressure roller bracket 43, and the movable pressure roller 42 is set on one side of the fixed pressure roller 41. The shopping bag passes between the fixed pressure roller 41 and the movable pressure roller 42. The shopping bag can be pressed against the fixed pressure roller 41 by the movement of the movable pressure roller 42. When the movable pressure roller 42 is in a pressing state, the shopping bag is in a bag-out state. The shopping bag is sent out of the bag-out machine by the rotation of the fixed pressure roller 41.

[0038] Reference Figure 2-Figure 3 As shown, the shopping bag discharging machine further includes a pushing device assembly 500, which includes a pushing motor 51 and a movable bracket 50. The pushing motor 51 is arranged on the base plate 10, and the movable bracket 50 is connected to the pushing motor 51 through a motor push rod 52. It further includes a plurality of guide light shafts 53, which are arranged on the base plate 10 and connected to the movable bracket 50 at the other end for controlling and stabilizing the moving trajectory of the movable bracket 50. The pushing motor 51 drives the movable bracket 50 to push the bag clamping assembly 200 to move, thereby clamping the shopping bag.

[0039] One end of the bag clamping plate 2 is fixed to the movable bracket 50 and forms a linkage with the movable bracket 50. The bag clamping plate 2 is controlled to clamp and release the shopping bag by the movement of the pushing device assembly 500. The movable pressure roller 42 is connected to the movable pressure roller bracket 54 and forms a linkage with the movable bracket 50. The movable pressure roller 42 is controlled by the movement of the pushing device assembly 500 to press the shopping bag against the fixed pressure roller 41.

[0040] The bag clamping side panels 30 form a bag clamping frame 33, and the frame structure is more conducive to the shopping bag passing through the bag clamping assembly 200. The bag clamping frame 33 is arranged on the bag outlet 8 of the bottom plate 10, and a bag clamping opening 31 is opened on the side wall of the bag clamping frame 33 facing the bag clamping piece 2. The bag clamping piece 2 passes through the bag clamping opening 31 and is pressed on the bag clamping side panel 30.

[0041] Reference Figure 3The device further includes switches, including a first switch 61 and a second switch 62, respectively disposed on both sides of the bag clamping side plate 30. The first switch 61 and the second switch 62 are used to control the position of the pusher assembly 500. The pusher assembly 500 moves toward the first switch 61. When it touches the first switch 61, the push motor 51 is paused, the pusher 500 is in the bag discharging state, the movable pressure roller 42 presses the shopping bag against the fixed pressure roller 43, and the bag clamping plate 2 is separated from the bag clamping side plate 30. The pusher assembly 500 moves toward the second switch 62. When it touches the second switch 62, the push motor 51 is paused, the pusher 500 is in the bag taking state, the bag clamping plate 2 clamps the shopping bag against the bag clamping side plate 30, and the movable pressure roller 42 is separated from the fixed pressure roller 41.

[0042] The bag clamping plate 2 includes a bag clamping surface 23, a first switch surface 21, and a second switch surface 22. The bag clamping surface 23 is positioned directly opposite the bag clamping side plate 30. The first switch surface 21 faces the first switch 61, and the second switch surface 22 faces the second switch 62. During the movement of the bag clamping plate 2, the position of the pushing device assembly 500 can be controlled by touching the first switch 61 and the second switch 62. When the first switch surface 21 touches the first switch 61, the pushing device 500 pauses and enters the bag discharging state, and the bag clamping plate 2 completely separates from the bag clamping side plate 30. When the second switch surface 22 touches the second switch 62, the pushing device 500 pauses and enters the bag discharging state, and the bag clamping plate 2 tightens the bag clamping side plate 30.

[0043] Reference Figure 1 As shown, the pressure roller assembly 400 further includes a pressure roller motor 45, which is arranged on the fixed pressure roller bracket 43 and is connected to the fixed pressure roller 41. When the movable pressure roller 42 and the fixed pressure roller 41 clamp the shopping bag, the pressure roller motor 45 rotates to send the shopping bag out.

[0044] The shopping bag dispensing machine further includes a color mark sensor 7, which is arranged on the bottom plate 10 and faces the shopping bag. During the bag dispensing process, when the color mark sensor 7 scans a specific color mark on the shopping bag, the pressure roller motor 45 is controlled to pause the bag dispensing, so that the shopping bag stays in the appropriate position.

[0045] A method for discharging shopping bags from a shopping bag discharging machine comprises the following steps:

[0046] Step 1) The shopping bag passes between the movable pressing roller 42 and the fixed pressing roller 41, then passes between the bag clamping frame 33 and the bag clamping plate 2, and is sent out of the bag discharge machine from the bag discharge port 8 of the bottom plate 10;

[0047] Step 2) Start the push motor 51 to drive the movable bracket 50 to move toward the first switch 61, driving the movable pressing roller 42 and the bag clamping piece 2 to move synchronously;

[0048] Step 3) When the first switch surface 21 touches the first switch 61, the push motor 51 stops, the movable pressure roller 42 presses the shopping bag onto the fixed pressure roller 41, and the bag clamping surface 23 is completely separated from the bag clamping frame 33, and the shopping bag is now in the bag discharge state;

[0049] Step 4) Starting the pressing roller motor 42 to drive the movable pressing roller 42 to rotate, rolling the shopping bag out of the bag discharging machine;

[0050] Step 5) When the color mark sensor 7 scans the specific color mark on the shopping bag, the roller motor 42 stops, completing the bag discharge action;

[0051] Step 6) The push motor 51 is restarted, driving the movable bracket 50 toward the second switch 62, thereby causing the movable pressure roller 42 and the bag clamping plate 2 to move synchronously. During the movement, the movable pressure roller 42 separates from the fixed pressure roller 41, and the bag clamping plate 2 is not yet pressed against the bag clamping frame 33. The shopping bag is not clamped or pressed and automatically moves vertically downward under the action of gravity, thereby automatically correcting the shopping bag's deviation.

[0052] Step 7) When the second switch surface 22 touches the second switch 62, the driving motor 51 stops, the movable pressing roller 42 completely separates from the fixed pressing roller 41, and the bag clamping surface 23 presses the shopping bag against the bag clamping frame 33. The bag is now in the clamping state, and the customer can tear off the shopping bag.

[0053] Step 8) The push motor 51 is started again, driving the movable bracket 50 to move toward the first switch 61, driving the movable pressure roller 42 and the bag clamping plate 2 to move synchronously. During the movement, the bag clamping frame 33 is separated from the bag clamping plate 2, and the movable pressure roller 42 and the fixed pressure roller 41 are not yet pressed tightly. The shopping bag is not clamped or pressed and automatically moves vertically downward under the action of gravity, realizing automatic deviation correction of the shopping bag again. In this way, the cycle of bag discharge, deviation correction, bag clamping, and deviation correction is carried out.

[0054] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A method for discharging shopping bags from a bag discharging machine, characterized in that: The bag dispensing method uses the following shopping bag dispensing machine, which is arranged in an automatic vending machine and is used to automatically dispense shopping bags. The shopping bag dispensing machine includes a pressing roller assembly, a bag clamping assembly, and a bottom plate. The bag clamping assembly is arranged on the bottom plate and is used to clamp the shopping bags. The pressing roller assembly is arranged above the bag clamping assembly and is used to roll and dispense the shopping bags. The bag clamping assembly includes a bag clamping side plate and a plurality of bag clamping pieces, wherein the bag clamping side plate is arranged on the bottom plate, and the bag clamping piece is arranged on one side of the bag clamping side plate; The invention further comprises a pushing device assembly, wherein the pushing device assembly comprises a pushing motor and a movable bracket, wherein the pushing motor is arranged on the bottom plate, the movable bracket is connected to the pushing motor, and the pushing motor drives the movable bracket to push the bag clamping assembly to move, thereby clamping the shopping bag; It further includes a switch, which includes a first switch and a second switch respectively arranged on both sides of the bag clamping side plate; It further includes a color mark sensor, which is arranged on the bottom plate and faces the shopping bag; The bag discharging method of the shopping bag discharging machine comprises the following steps: Step 1) The shopping bag passes through the pressing roller assembly and the bag clamping assembly; Step 2) starting the push motor to drive the movable bracket to move toward the first switch; Step 3) When the first switch surface touches the first switch, the motor stops, the pressing roller assembly presses the shopping bag, and the bag clamping assembly separates, and the shopping bag is in the bag-out state; Step 4) The roller assembly starts to rotate and rolls the shopping bag out of the bag dispensing machine. Step 5) When the color mark sensor scans the specific color mark on the shopping bag, the pressing roller assembly stops rotating, completing the bag discharge action; Step 6) The push motor is started again to drive the movable bracket to move toward the second switch. During the movement, the pressing roller assembly and the bag clamping assembly are both in a separated state, thereby achieving automatic deviation correction for the shopping bag. Step 7) When the second switch surface touches the second switch, the motor stops, the pressure roller assembly completely separates, and the bag clamping assembly clamps the shopping bag, at which point the customer can tear off the shopping bag; Step 8) The push motor is started again to drive the movable bracket to move toward the first switch. During the movement, the pressure roller assembly and the bag clamping assembly are both in a separated state, and the shopping bag is automatically corrected again. In this way, the cycle of bag discharge, correction, bag clamping, and correction is carried out.

2. The method for discharging shopping bags from a shopping bag discharging machine according to claim 1, characterized in that: The pressure roller assembly includes a fixed pressure roller, a fixed pressure roller bracket and a movable pressure roller. The fixed pressure roller bracket is arranged on the bottom plate, the fixed pressure roller is installed on the fixed pressure roller bracket, and the movable pressure roller is arranged on one side of the fixed pressure roller.

3. The method for discharging shopping bags from a shopping bag discharging machine according to claim 2, characterized in that: One end of the bag clamping piece is fixed on the movable bracket, and the movable pressing roller is arranged on the movable bracket.

4. The method for discharging shopping bags from a shopping bag discharging machine according to claim 1, characterized in that: The bag clamping side plates form a bag clamping frame, and the bag clamping frame is provided with a bag clamping opening toward the side wall of the bag clamping sheet.

5. The method for discharging shopping bags from a shopping bag discharging machine according to claim 1, characterized in that: The bag clamping piece includes a bag clamping surface, a first switch surface, and a second switch surface. The bag clamping surface is arranged opposite to the bag clamping side plate. The first switch surface is opposite to the first switch, and the second switch surface is opposite to the second switch.

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