Full-automatic self-service bag taking machine

Abstract

The invention relates to the field of bag taking machines, in particular to a full-automatic self-service bag taking machine which comprises a rack, an unwinding roller is arranged in the rack, an unwinding feeding station, a bag clamping conveying station, an opening forming station and a bag outlet conveying station are arranged in the rack, an unwinding feeding mechanism is arranged on the feeding station, a bag clamping conveying mechanism is arranged on the bag clamping conveying station, and an opening forming mechanism is arranged on the opening forming station. The bag clamping and conveying mechanism comprises a conveying device used for conveying bags and a bag clamping and opening device used for clamping and opening the bags, an opening forming mechanism used for opening the bags and expanding the bags relatively is arranged on the opening forming station, a bag discharging and conveying mechanism used for conveying material bags is arranged on the bag discharging and conveying station, and a cabinet door is arranged on the side face of the machine frame. According to the full-automatic bag opening and forming machine, the full-automatic process from unwinding, conveying, bag opening, forming and discharging of the material bags is achieved, the operation link of bag opening and forming after manual bag breaking and taking is eliminated, and therefore a user can take the bags rapidly and package the bags conveniently.

Description

Technical Field

[0001] The present invention relates to the field of bag-taking machines, and particularly to a fully automatic self-service bag-taking machine. Background Art

[0002] As a packaging material, bags are widely used in various fields. According to their materials and application fields, there are various types of bags, including but not limited to film bags, thin paper bags, composite food bags, etc. Thin paper bags can be applied in other fields including but not limited to shopping malls, food, etc. In some shopping malls, an automatic bag-spitting machine is used to discharge film bags so that users can quickly take the bags and perform subsequent bag-opening and packaging operations.

[0003] Existing automatic bag-spitting machines usually include key components such as a machine body part, a transmission part, and a control part. The transmission part drives the rolling of plastic film bags through a driving motor, so that the film bags pass through a bin body for loading bag rolls and are exported from the opening of the bin body to facilitate users to take the bags for packaging. These components work together to achieve the action effects of loading, conveying, and spitting out plastic bags.

[0004] However, existing self-service bag-taking machines still have some significant defects in actual applications. Since self-service bag-taking machines are usually only used for conveying and spitting out bags, after the bags are spit out, manual bag cutting is required, and the bags are opened manually. This step usually needs to be completed by manual operation, that is, by manually opening the bag mouth. When opening the bag manually, due to different operating habits and forces of each person, the size and shape of the opened bag may be inconsistent, the stability and reliability of bag opening are poor, and the full automation effect of existing self-service bag-spitting machines is poor, which is not conducive to the convenient use of fully automatic bag delivery, bag cutting, bag opening, forming, and bag discharging in places such as shopping malls, and affects subsequent convenient packaging and efficiency. Summary of the Invention

[0005] The purpose of the present invention is to solve the above defects and provide a fully automatic self-service bag-taking machine to solve the technical problem that the automation control of existing bag-taking machines in the above background art is poor, resulting in the need for manual bag cutting and bag opening, thus affecting the convenient packaging and efficiency of bags.

[0006] The purpose of the present invention is achieved in the following way:

[0007] A fully automatic self-service bag-taking machine includes a frame. Inside the frame, there is a unwinding roller for loading a roll of plastic bags. Inside the frame, there are an unwinding and feeding station, a bag-clamping and transporting station, an opening and forming station, and a bag-discharging and transporting station. An unwinding and feeding mechanism for driving the unwinding end of the plastic bag to be transported to the bag-clamping and transporting station is arranged at the feeding station. A bag-clamping and transporting mechanism is arranged at the bag-clamping and transporting station. The bag-clamping and transporting mechanism includes a transporting device for transporting the bag and a clamping and opening device for clamping and opening the bag. The input end of the transporting device extends towards the unwinding and feeding mechanism, and the output end of the transporting device extends towards the clamping and opening device, so that the unwinding end of the plastic bag enters the transporting device through the drive of the unwinding and feeding mechanism. The transporting device is used for clamping the unwinding end of the plastic bag and transporting it to the clamping and opening device. An opening and forming mechanism for supporting the bag and relatively expanding it is arranged at the opening and forming station. A bag-discharging and transporting mechanism for transporting the plastic bag is arranged at the bag-discharging and transporting station. A cabinet door that can be lifted and opened is arranged on the side of the frame, and a bag-discharging rack communicated with the bag-discharging transmission mechanism is arranged on the side of the frame close to the cabinet door. A bag-discharging and discharging mechanism for transporting the plastic bag to the outside of the frame is arranged on the bag-discharging rack. The bag-discharging and transporting station can drive the bag-discharging and transporting mechanism to move up and down relative to the opening and forming mechanism through a lifting mechanism, so that the bag-discharging and transporting mechanism is connected with the bag-discharging and discharging mechanism through the lifting drive of the lifting mechanism.

[0008] Further, in the above description, the unwinding roller, the bag-discharging and transporting mechanism, the bag-clamping and transporting mechanism, the opening and forming mechanism, and the unwinding and feeding mechanism are arranged in sequence from the bottom to the top of the frame. A guide roller for transporting the unwinding end of the plastic bag is arranged on the side of the frame.

[0009] Further, in the above description, the unwinding and feeding mechanism is arranged on the top of the frame. The unwinding and feeding mechanism includes an unwinding drive motor, an unwinding drive roller, and a pressure roller. The output end of the unwinding drive motor is connected to one end of the unwinding drive roller through an unwinding transmission member, so that the unwinding drive motor can drive the unwinding drive roller to rotate. The pressure roller is installed on the top of the frame through a swinging pressure rod, and the outer surface of the pressure roller is in contact with the unwinding drive roller.

[0010] Further, in the above description, the transporting device includes two symmetrically arranged conveyor belts. The two conveyor belts are vertically installed on a support platform through a support plate, and a transport channel for clamping and transporting the unwinding end of the plastic bag is formed between the two conveyor belts. The two conveyor belts can be driven to rotate by a transport drive motor on the side of the frame, so that the unwinding end of the plastic bag is transported along the transport channel to the clamping and opening device.

[0011] The two symmetric conveyor belts enable the bag to pass through the transport channel and through the feeding hole, realizing the stable transport of the bag. The two conveyor belts are synchronously driven to rotate by the transport drive motor, ensuring the synchronism and stability of the bag during transport and avoiding the deviation or jamming of the bag caused by asynchronous transport.

[0012] Bag breaking: Under the driving of the unwinding feeding mechanism, when the unwinding end of the bag enters the conveying channel and the breaking line of the bag is located between the unwinding feeding mechanism and the conveying device, the unwinding feeding mechanism stops driving, and the conveying device continues to convey to the feeding hole, so that the bag can be broken, that is, a bag is taken out from the unwinding end of the rolled material bag.

[0013] Further in the above description, the clamping and bag-opening device includes a support table, a first set of clamping components and a second set of clamping components arranged at the bottom of the support table. The first set of clamping components and the second set of clamping components are arranged symmetrically left and right. An opening driving member is arranged at the bottom of the support table. The opening driving member can drive the first set of clamping components and the second set of clamping components to approach or move away from each other. A feeding hole communicating with the conveying is arranged on the support table, and the feeding hole is arranged between the first set of clamping components and the second set of clamping components.

[0014] The opening driving member is composed of a belt drive. There are two sets of opening driving members, which are synchronously driven by a synchronous rod. The belts on the opening driving member are connected to the first set of clamping components and the second set of clamping components, so that the opening driving member can synchronously drive the first set of clamping components and the second set of clamping components to approach or move away from the feeding hole.

[0015] Further in the above description, both the first set of clamping components and the second set of clamping components include openable and closable jaws, link members and mounting plates. The jaws are connected to the mounting plates through the link members, and the clamping ends of the jaws extend towards the feeding hole. The bottom of the support table is connected to the mounting plates through sliding members. The opening driving member can drive the mounting plates to reciprocate along the sliding members through connecting members. One end of the sliding member extends towards the feeding hole, so that the mounting plates can drive the jaws to move along the extension direction of the sliding members. A chute is provided on the support table, and the driving parts of the link members pass through the chute and are exposed on the support table. A stop block is provided on the support table for driving the link members to drive the jaws to open and close.

[0016] When the opening driving member drives the mounting plates to drive the jaws to move close to the feeding hole along the sliding members, the stop block controls the driving parts of the link members to drive the link members to drive the jaws to open. When the mounting plates drive the jaws to move away from the feeding hole, the link members reset and clamp the mouth end of the material bag through the jaws. Under the movement of the opening driving member driving the mounting plates, the mouth of the material bag is synchronously opened on both sides under the relative clamping of the first set of clamping components and the second set of clamping components.

[0017] The upper jaws and the lower jaws can be driven by the link members to open or close relative to each other. When the flexible opening and closing of the jaws are realized, the accuracy and stability of the clamping action are ensured, and the slipping or breaking of the bag caused by uneven clamping force is avoided.

[0018] Further in the above description, the connecting rod member includes an upper connecting rod, a lower connecting rod, and a driving rod. One end of the upper connecting rod and the lower connecting rod is hinged to the driving rod, and the other ends of the upper connecting rod and the lower connecting rod are respectively connected to the upper jaw and the lower jaw. One end of the driving rod passes through the support platform and is connected with a stop rod.

[0019] Further in the above description, the opening and forming mechanism includes two sets of symmetric moving members arranged on the support platform and a first set of bag-opening rods and a second set of bag-opening rods respectively arranged on the two sets of moving members. A first chute and a second chute extending horizontally in the sliding direction of the moving members are opened on the support platform. One ends of the first set of bag-opening rods and the second set of bag-opening rods respectively extend through the first chute and the second chute towards the bottom of the support platform, and the other ends of the first set of bag-opening rods and the second set of bag-opening rods extend towards the top of the support platform. A first driving member for driving the first set of bag-opening rods to perform lifting actions and slide along the first chute is connected to the support platform through a first set of vertical plates, and a second driving member for driving the second set of bag-opening rods to perform lifting actions and slide along the second chute is connected to the support platform through a second set of vertical plates. Through the linkage of the first driving member and the second driving member, the first set of bag-opening rods and the second set of bag-opening rods can synchronously descend and expand away from the feeding hole relative to the outside, realizing the opening and forming of the material bag.

[0020] Further in the above description, the first set of bag-opening rods and the second set of bag-opening rods are installed on the moving members through sliding plates. The first set of bag-opening rods and the second set of bag-opening rods are both composed of a bag-opening shaft and a shaft sleeve. The shaft sleeve is installed on the sliding plate, and the bag-opening shaft is paired and connected with the shaft sleeve. The bag-opening shaft can perform lifting movements along the axial direction of the shaft sleeve, and a material clamp is connected to the end of the bag-opening shaft passing through the support platform;

[0021] The material clamp applies pressure to the bottom sealed end of the bag and moves downward while expanding outward, so as to expand the bag. With the setting of the bag-opening shaft and the moving member, the reverse opening of the bag can be made flatter, ensuring the smooth progress of subsequent packaging operations.

[0022] The first set of vertical plates includes two relatively arranged vertical plates one, and the second set of vertical plates includes two relatively arranged vertical plates two. The first driving member is installed between the two vertical plates one, and the second driving member is installed between the two vertical plates two;

[0023] Both the first driving member and the second driving member are composed of an opening driving motor, a linkage rod, a guide rod, and two telescopic devices. Guide grooves and driving grooves are provided on the inner sides of the two first vertical plates and the two second vertical plates. The opening driving motor is connected to the linkage rod. One end of each of the two telescopic devices is connected to one end of the linkage rod. A driving block that mates with the driving groove is provided on the telescopic device. The guide rod is installed on the telescopic ends of the two telescopic devices and mates with the guide groove. The top of the bag-opening shaft is connected to the guide rod. When the opening driving motor rotates, the telescopic device moves along the driving groove, and the guide rod is driven by the telescopic device to move along the guide groove.

[0024] Specifically, the guide groove is an "L"-shaped groove, and the driving groove is an "S"-shaped groove.

[0025] The design of the "L"-shaped guide groove and the "S"-shaped driving groove enables the bag-opening shaft to move along a predetermined bag-opening path during movement, which improves the accuracy and stability of the bag-opening mechanism.

[0026] Specifically, the structures of the first driving member and the second driving member are the same.

[0027] The paired connection between the bag-opening shaft and the shaft sleeve enables the bag-opening shaft to move up and down along the axial direction of the shaft sleeve. Combined with the sliding setting of the moving member, the bag-opening mechanism can more flexibly adapt to bags of different sizes and specifications. By adjusting the height of the bag-opening shaft, it can be ensured that the bag mouth is flat when the bag is opened.

[0028] In the above description, further, the lifting mechanism includes a lifting driving motor, a screw rod, a lifting transmission member, and a lifting plate. The lifting driving motor is installed in the frame, and the output end of the lifting driving motor is connected to one end of the screw rod through a lifting driving member. The screw rod is connected to the lifting plate through a screw sleeve. The bag-out conveying mechanism is installed on the lifting plate. The lifting driving motor can drive the screw rod to rotate, so that the screw sleeve drives the bag-out conveying mechanism to move up and down through the lifting plate; the bag-out conveying mechanism can be driven by the lifting mechanism to rise, so that it is used to mate with the bag-opening and forming mechanism for bag opening and forming, and is connected to one end of the bag-out discharging mechanism. The formed material bag after bag opening falls on the bag-out conveying mechanism, and the material bag is exported from the frame through the bag-out conveying mechanism and enters the bag-out discharging mechanism for discharging, thus facilitating the convenient packaging use by the user after directly taking the bag.

[0029] The bag-out conveying mechanism includes a support frame, a plurality of bag-out rollers arranged on the support frame, and a bag-out driving motor for driving the bag-out rollers to rotate synchronously. The support frame is arranged on the lifting plate, and the bag-out driving motor is connected to one end of the plurality of bag-out rollers through a chain assembly, so that the bag-out driving motor can drive the plurality of bag-out rollers to perform synchronous rolling conveyance.

[0030] Further in the above description, liftable cabinet doors are provided on both sides of the rack. There are two bag discharging racks, and the two bag discharging racks are respectively communicated with the cabinet doors on both sides of the rack. Bag discharging and discharging mechanisms are connected to both bag discharging racks. The bag discharging and discharging mechanism is composed of a conveyor belt. The conveying direction of the bag discharging roller extends towards the bag discharging rack on one side of the rack. A plurality of material belts are provided on the support frame, and the plurality of material belts are sequentially connected through a transmission rod. The transmission rod can be driven by a bag discharging driving motor on the support frame to drive the plurality of material belts to rotate and convey synchronously. The conveying direction of the material belt extends towards the bag discharging rack on the other side of the rack.

[0031] Optionally, two bag discharging ports are provided on the side of the rack. The two bag discharging ports are used to pair with the two bag discharging racks, and the bag discharging and conveying mechanism is provided with a bag discharging roller and a material belt. The transmission directions of the bag discharging roller and the material belt are respectively adapted to the two bag discharging ports, so that after the bag is opened and formed, it can be exported out of the rack through the bag discharging roller or the material belt.

[0032] By setting a plurality of bag discharging ports, the bag taking position of the bag taking machine can be improved, the convenience of the user for taking bags can be enhanced, and the bag taking can be shunted on both sides of the user.

[0033] The beneficial effects of the present invention: Through the coordinated operation of the unwinding and feeding mechanism, the conveying device, the clamping and bag opening device, the unfolding and forming mechanism, and the bag discharging and conveying mechanism arranged in the rack, a fully automated process from the unwinding, conveying, bag opening, forming to discharging of the bag is realized. At the same time, through the connection between the bag discharging and conveying mechanism and the bag discharging and discharging mechanism, the bag that has been cut, opened, and formed falls onto the bag discharging and conveying mechanism, and is conveyed to the bag discharging and discharging mechanism through the bag discharging and conveying mechanism for the user to quickly take. Compared with the defects of the traditional bag taking machine that requires manual bag cutting and bag opening and unfolding and forming, this solution eliminates the manual operation link, significantly improves the fully automated operation of the bag taking machine, ensures efficient and continuous bag discharging in places such as supermarkets, so that the user can quickly take the bag, and the bag that has been opened and formed is convenient for subsequent convenient packaging use. Description of the Drawings

[0034] Figure 1 It is a schematic diagram of the overall structure from the front view angle of this embodiment;

[0035] Figure 2 It is a schematic diagram of the overall structure from the rear view angle of this embodiment;

[0036] Figure 3 It is a schematic diagram of the overall structure from the side view angle of this embodiment;

[0037] Figure 4 It is a schematic perspective view of the conveying of the roll of bag in this embodiment;

[0038] Figure 5 It is a schematic cross-sectional view of the conveying of the roll of bag in this embodiment;

[0039] Figure 6 It is a schematic structural diagram of the unwinding and feeding mechanism in this embodiment;

[0040] Figure 7 It is a schematic combined connection diagram of the bag clamping and conveying mechanism and the opening and forming mechanism in this embodiment from a top view angle;

[0041] Figure 8 It is a schematic combined connection diagram of the bag clamping and conveying mechanism and the opening and forming mechanism in this embodiment from a bottom view angle;

[0042] Figure 9 It is a schematic structural diagram of the bag clamping and conveying mechanism in this embodiment from a top view angle;

[0043] Figure 10 It is a schematic structural diagram of the bag clamping and conveying mechanism in this embodiment from a bottom view angle;

[0044] Figure 11 It is a sectional view of the bag clamping and conveying mechanism in this embodiment;

[0045] Figure 12 It is a schematic structural diagram of the opening and forming mechanism in this embodiment;

[0046] Figure 13 It is a sectional view of the opening and forming mechanism in this embodiment;

[0047] Figure 14 It is a schematic structural diagram of the first driving member in this embodiment;

[0048] Figure 15 It is a schematic combined connection diagram of the bag discharging and conveying mechanism and the lifting mechanism in this embodiment;

[0050] The reference numerals in the figure are respectively: 1 - frame, 2 - unwinding roller, 3 - cabinet door, 4 - bag discharging rack, 5 - guiding roller; 100 - unwinding and feeding mechanism, 101 - unwinding driving motor, 102 - unwinding driving roller, 103 - pressing roller, 104 - unwinding transmission member, 105 - swinging pressing rod;

[0051] 200 - bag clamping and conveying mechanism, 201 - conveying device, 2011 - conveyor belt, 2012 - support plate, 2013 - conveying channel, 2014 - conveying driving motor, 202 - clamping and bag opening device, 2021 - support table, 2022 - first group of clamping components, 20221 - clamping jaw, 20222 - connecting rod member, 202221 - upper connecting rod, 202222 - lower connecting rod, 202223 - driving rod, 2002224 - blocking rod, 2023 - second group of clamping components, 2024 - bag opening driving member, 2025 - feeding hole, 2026 - blocking block;

[0052] 300 - Bag opening and forming mechanism, 301 - Moving part, 302 - First chute, 303 - Second chute, 304 - First group of bag opening rods, 3041 - Bag opening shaft, 3042 - Bush, 3043 - Material clamp, 305 - Second group of bag opening rods, 306 - First group of vertical plates, 307 - Second group of vertical plates, 308 - First driving part, 3081 - Bag opening driving motor, 3082 - Linking rod, 3083 - Guide rod, 3084 - Expander, 3085 - Driving block, 309 - Second driving part, 310 - Guide groove, 311 - Driving groove;

[0053] 400 - Bag discharging and conveying mechanism, 401 - Support frame, 402 - Bag discharging roller, 403 - Bag discharging driving motor, 404 - Material tape, 405 - Transmission rod, 406 - Bag discharging transmission motor; 500 - Bag discharging and discharging mechanism; 600 - Lifting mechanism, 601 - Lifting driving motor, 602 - Screw rod, 603 - Lifting transmission part, 604 - Lifting plate, 605 - Nut sleeve. Specific implementation mode

[0054] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes.

[0055] In this embodiment, referring to Figures 1 - 15 ..., a fully automatic self-service bag-taking machine specifically implemented includes a frame 1. A unwinding roller 2 for loading a roll of plastic bags is arranged inside the frame 1. A unwinding and feeding station, a bag clamping and conveying station, a bag opening and forming station, and a bag discharging and conveying station are arranged inside the frame 1. A unwinding and feeding mechanism 100 for driving the unwinding end of the plastic bag to be conveyed to the bag clamping and conveying station is arranged at the feeding station. A bag clamping and conveying mechanism 200 is arranged at the bag clamping and conveying station. The bag clamping and conveying mechanism 200 includes a conveying device 201 for conveying the bags and a clamping and bag opening device 202 for clamping and opening the bags. The input end of the conveying device 201 extends towards the unwinding and feeding mechanism 100, and the output end of the conveying device 201 extends towards the clamping and bag opening device 202, so that the unwinding end of the plastic bag enters the conveying device 201 under the drive of the unwinding and feeding mechanism 100. The conveying device 201 is used for clamping the unwinding end of the plastic bag and conveying it to the clamping and bag opening device 202. A bag opening and forming mechanism 300 for supporting and relatively expanding the bag is arranged at the bag opening and forming station. A bag discharging and conveying mechanism 400 for conveying the plastic bag is arranged at the bag discharging and conveying station. A cabinet door 3 that can be lifted and opened is arranged on the side of the frame 1, and a bag discharging rack 4 communicated with the bag discharging transmission mechanism is arranged on the side of the frame 1 close to the cabinet door 3. A bag discharging and discharging mechanism 500 for conveying the plastic bag to the outside of the frame 1 is arranged on the bag discharging rack 4. The bag discharging and conveying station can drive the bag discharging and conveying mechanism 400 to move up and down relative to the bag opening and forming mechanism 300 through a lifting mechanism 600, so that the bag discharging and conveying mechanism 400 is connected with the bag discharging and discharging mechanism 500 through the lifting drive of the lifting mechanism 600.

[0056] Refer to Figures 3 - 5 , the unwinding roller 2, the bag discharging conveying mechanism 400, the bag clamping and conveying mechanism 200, the opening and forming mechanism 300 and the unwinding and feeding mechanism 100 are arranged in sequence from the bottom to the top of the frame 1, and a guide roller 5 for conveying the unwinding end of the material bag is arranged on the side surface of the frame 1.

[0057] Refer to Figure 5 , the unwinding and feeding mechanism 100 is arranged on the top of the cabinet. The unwinding and feeding mechanism 100 includes an unwinding driving motor 101, an unwinding driving roller 102 and a pressure roller 103. The output end of the unwinding driving motor 101 is connected to one end of the unwinding driving roller 102 through an unwinding transmission member 104, so that the unwinding driving motor 101 can drive the unwinding driving roller 102 to rotate. The pressure roller 103 is installed on the top of the frame 1 through a swing lever 105, and the outer surface of the pressure roller 103 is in contact with the unwinding driving roller 102.

[0058] Refer to Figures 6 - 10 , the conveying device 201 includes two symmetrically arranged conveyor belts 2011. The two conveyor belts 2011 are vertically installed on the support table 2021 through a support plate 2012, and a conveying channel 2013 for clamping and conveying the unwinding end of the material bag is formed between the two conveyor belts 2011. The side surface of the frame 1 can drive the two conveyor belts 2011 to rotate through a conveying driving motor 2014, so that the unwinding end of the material bag is conveyed along the conveying channel 2013 to the bag clamping and opening device 202.

[0059] Bag breaking: Under the driving and unwinding of the unwinding and feeding mechanism 100, when the unwinding end of the bag enters the conveying channel 2013 and the bag breaking line of the bag is located between the unwinding and feeding mechanism 100 and the conveying device 201, the unwinding and feeding mechanism 100 stops driving, and through the continuous conveying of the conveying device 201 to the feeding hole 2025, the bag breaking can be completed, that is, a bag is taken out from the unwinding end of the rolled material bag.

[0060] Refer to Figures 6 - 9 , the bag clamping and opening device 202 includes a support table 2021, a first group of clamping components 2022 and a second group of clamping components 2023 arranged at the bottom of the support table 2021. The first group of clamping components 2022 and the second group of clamping components 2023 are symmetrically arranged left and right. An opening driving member 2024 is arranged at the bottom of the support table 2021, and the opening driving member 2024 can drive the first group of clamping components 2022 and the second group of clamping components 2023 to move relatively closer or farther away. A feeding hole 2025 communicated with the conveying is arranged on the support table 2021, and the feeding hole 2025 is arranged between the first group of clamping components 2022 and the second group of clamping components 2023.

[0061] Refer to Figure 9The bag opening drive 2024 is composed of a belt drive. There are two groups of bag opening drive members 2024, which are synchronously driven by a synchronization rod. The belt on the bag opening drive member 2024 is connected to the first group of clamping components 2022 and the second group of clamping components 2023, so that the bag opening drive member 2024 can synchronously drive the first group of clamping components 2022 and the second group of clamping components 2023 to move closer to or away from the feed hole 2025.

[0062] Specifically, refer to Figure 9 The bag opening drive member 2024 includes a bag opening drive motor, a bag opening synchronous wheel, and a bag opening belt. The bag opening drive motor is disposed at the bottom of the support platform 2021. The conveying end of the bag opening drive motor is connected to the bag opening synchronous wheel. The bag opening belt is meshed with the bag opening synchronous wheel. The bag opening belt extends along the sliding direction of the first and second clamping assemblies 2022 and 2023. The rotation of the bag opening belt can control the first and second clamping assemblies 2023 to move closer to or farther from each other.

[0063] Reference Figures 8 - 10 , the first group of clamping components 2022 and the second group of clamping components 2023 both include openable and closable clamping jaws 20221, connecting rods 20222 and mounting plates, the clamping jaws 20221 are connected to the mounting plate through the connecting rods 20222, and the clamping ends of the clamping jaws 20221 extend toward the feed hole 2025, the bottom of the support platform 2021 is connected to the mounting plate through a sliding member, the bag opening driving member 2024 can drive the mounting plate to reciprocate along the sliding member through the connecting member, one end of the sliding member extends toward the feed hole 2025, so that the mounting plate can drive the clamping jaws 20221 to move along the extension direction of the sliding member, a sliding groove is provided on the support platform 2021, the driving part of the connecting rod 20222 passes through the sliding groove and is exposed on the support platform 2021, and a stopper 2026 is provided on the support platform 2021 for driving the connecting rod 20222 to drive the clamping jaws 20221 to open and close;

[0064] When the bag opening drive 2024 drives the mounting plate to drive the clamping jaw 20221 to move along the sliding member toward the feed hole 2025, the block 2026 controls the driving part of the connecting rod 20222 so that the connecting rod 20222 drives the clamping jaw 20221 to open. When the mounting plate drives the clamping jaw 20221 to move away from the feed hole 2025, the connecting rod 20222 is reset and is used to clamp the bag mouth end of the material bag through the clamping jaw 20221. When the bag opening drive 2024 drives the movement of the mounting plate, the bag mouth of the material bag is synchronously opened on both sides under the relative clamping of the first group of clamping components 2022 and the second group of clamping components 2023.

[0065] In this embodiment, two sets of clamping components arranged symmetrically on the left and right can evenly distribute the clamping force, ensuring that the bag is evenly stressed during clamping, avoiding bag deformation or rupture caused by uneven clamping force, and further improving the stability and accuracy of clamping.

[0066] Referring to Figure 10 , the jaw 20221 includes an upper jaw and a lower jaw. One end of the upper jaw and the lower jaw is hinged to the link member 20222, so that the upper jaw and the lower jaw can open or close relative to each other. The link member 20222 can drive the upper jaw and the lower jaw to open or close relative to each other. When the flexible opening and closing of the jaw 20221 is achieved, the accuracy and stability of the clamping action are ensured, and the bag slipping or rupture caused by uneven clamping force is avoided.

[0067] Referring to Figure 10 , the link member 20222 includes an upper link 202221, a lower link 202222 and a driving rod 202223. One end of the upper link 202221 and the lower link 202222 is hinged to the driving rod 202223, and the other ends of the upper link 202221 and the lower link 202222 are respectively connected to the upper jaw and the lower jaw. One end of the driving rod 202223 passes through the support table 2021 and is connected with a stop rod 2002224.

[0068] Referring to Figures 11 - 13 , the opening and forming mechanism 300 includes two sets of symmetrically arranged moving members 301 on the support table 2021 and a first set of bag-opening rods 304 and a second set of bag-opening rods 305 respectively arranged on the two sets of moving members 301. The support table 2021 is provided with a first chute 302 and a second chute 303 that horizontally extend in the sliding direction of the moving member 301. One end of the first set of bag-opening rods 304 and the second set of bag-opening rods 305 respectively passes through the first chute 302 and the second chute 303 and extends towards the bottom of the support table 2021, and the other ends of the first set of bag-opening rods 304 and the second set of bag-opening rods 305 extend towards the top of the support table 2021. The support table 2021 is connected with a first driving member 308 for driving the first set of bag-opening rods 304 to perform a lifting action and slide along the first chute 302 through a first set of vertical plates 306, and the support table 2021 is connected with a second driving member 309 for driving the second set of bag-opening rods 305 to perform a lifting action and slide along the second chute 303 through a second set of vertical plates 307. Through the linkage of the first driving member 308 and the second driving member 309, the first set of bag-opening rods 304 and the second set of bag-opening rods 305 can synchronously descend and expand away from the feeding hole 2025 relative to each other, realizing the opening and forming of the material bag.

[0069] Referring to Figures 11 - 13, the first group of bag-opening rods 304 and the second group of bag-opening rods 305 are installed on the moving member 301 through a sliding plate. Both the first group of bag-opening rods 304 and the second group of bag-opening rods 305 are composed of a bag-opening shaft 3041 and a bushing 3042. The bushing 3042 is installed on the sliding plate, and the bag-opening shaft 3041 is paired and connected with the bushing 3042. The bag-opening shaft 3041 can move up and down along the axial direction of the bushing 3042, and a material clamp 3043 is connected to the end of the bag-opening shaft 3041 passing through the support table 2021.

[0070] The material clamp 3043 applies pressure to the bottom sealed end of the bag and moves downward while expanding outward, so as to expand the bag. The settings of the bag-opening shaft 3041 and the moving member 301 can make the reverse opening of the bag smoother, ensuring the smooth progress of subsequent packaging operations.

[0071] The first group of vertical plates 306 includes two relatively arranged vertical plates one, the second group of vertical plates 307 includes two relatively arranged vertical plates two, the first driving member 308 is installed between the two vertical plates one, and the second driving member 309 is installed between the two vertical plates two.

[0072] Refer to Figure 13 , both the first driving member 308 and the second driving member 309 are composed of an opening driving motor 3081, a linkage rod 3082, a guide rod 3083 and two telescopic devices 3084. Guide grooves 310 and driving grooves 311 are opened on the inner sides of the two vertical plates one and the two vertical plates two. The opening driving motor 3081 is connected to the linkage rod 3082. One end of the two telescopic devices 3084 is connected to one end of the linkage rod 3082, and a driving block 3085 paired with the driving groove 311 is provided on the telescopic device 3084. The guide rod 3083 is installed on the telescopic ends of the two telescopic devices 3084, and the guide rod 3083 is paired with the guide groove 310. The top end of the bag-opening shaft 3041 is connected to the guide rod 3083. The rotation drive of the opening driving motor 3081 makes the telescopic device 3084 move along the driving groove 311, and drives the guide rod 3083 to move along the guide groove 310 through the telescopic device 3084.

[0073] Specifically, the guide groove 310 is an "L"-shaped groove, and the driving groove 311 is an "S"-shaped groove.

[0074] The design of the "L"-shaped guide groove 310 and the "S"-shaped driving groove 311 enables the bag-opening shaft 3041 to move along a predetermined bag mouth opening path during the movement process. This design improves the accuracy and stability of the bag opening mechanism. It avoids the problem that the unstable opening and forming of manual bag opening affects the opening of the bag mouth.

[0075] Specifically, the structures of the first driving member 308 and the second driving member 309 are the same.

[0076] The paired connection between the bag opening shaft 3041 and the bushing 3042 enables the bag opening shaft 3041 to move up and down along the axial direction of the bushing 3042. Combined with the sliding setting of the moving part 301, the bag opening mechanism can more flexibly adapt to bags of different sizes and specifications. By adjusting the height of the bag opening shaft 3041, it can ensure that the bag mouth remains flat when the bag is opened.

[0077] The lifting mechanism 600 includes a lifting drive motor 601, a screw rod 602, a lifting transmission part 603 and a lifting plate 604. The lifting drive motor 601 is installed in the frame 1, and the output end of the lifting drive motor 601 is connected to one end of the screw rod 602 through a lifting drive part. The screw rod 602 is connected to the lifting plate 604 through a screw sleeve 605. The bag discharging conveyor mechanism 400 is installed on the lifting plate 604. By driving the screw rod 602 to rotate through the lifting drive motor 601, the screw sleeve 605 can drive the bag discharging conveyor mechanism 400 to move up and down through the lifting plate 604. The bag discharging conveyor mechanism 400 can be driven to rise through the lifting mechanism 600 so that it is used for paired bag opening and forming with the bag opening and forming mechanism 300 and is connected to one end of the bag discharging mechanism 500. The formed material bag after bag opening falls on the bag discharging conveyor mechanism 400, and the material bag is exported from the frame 1 through the bag discharging conveyor mechanism 400 and enters the bag discharging mechanism 500 for discharging, thus facilitating the convenient packaging use by the user after directly taking the bag.

[0078] Refer to Figures 14 - 15 , the bag discharging conveyor mechanism 400 includes a support frame 401, a plurality of bag discharging rollers 402 arranged on the support frame 401 and a bag discharging drive motor 403 for driving the bag discharging rollers 402 to perform synchronous rotational motion. The support frame 401 is arranged on the lifting plate 604. The bag discharging drive motor 403 is connected to one end of a plurality of bag discharging rollers 402 through a chain assembly, so that the bag discharging drive motor 403 can drive a plurality of bag discharging rollers 402 to perform synchronous rolling conveyance.

[0079] Refer to Figures 1 - 3 , both sides of the frame 1 are provided with liftable cabinet doors 3. There are two bag discharging racks 4, and the two bag discharging racks 4 are respectively communicated with the cabinet doors 3 on both sides of the frame 1. Bag discharging mechanisms 500 are connected to both bag discharging racks 4. The bag discharging mechanism is composed of a conveyor belt. The conveying direction of the bag discharging rollers 402 extends towards the bag discharging rack 4 on one side of the frame 1. A plurality of material belts 404 are arranged on the support frame 401. The plurality of material belts 404 are sequentially connected through a transmission rod 405. The transmission rod 405 can be driven through a bag discharging transmission motor 406 on the support frame 401 to drive the plurality of material belts 404 to perform synchronous rotational conveyance. The conveying direction of the material belts 404 extends towards the bag discharging rack 4 on the other side of the frame 1.

[0080] Optionally, two bag outlets are provided on the side of the rack 1. The two bag outlets are used to pair with two bag discharging racks 4. The bag discharging conveying mechanism 400 is provided with a bag discharging roller 402 and a strip 404. The transmission directions of the bag discharging roller 402 and the strip 404 are respectively adapted to the two bag outlets, so that after the bag is opened and formed, it can be exported out of the rack 1 through the bag discharging roller 402 or the strip 404.

[0081] By setting multiple bag outlets, the bag taking position of the bag taking machine can be improved, the convenience of the user for taking bags can be enhanced, and the diversion of taking bags on both sides of the user can be achieved.

[0082] The specific operation process in this embodiment is as follows:

[0083] Unwinding: Load the rolled bag on the unwinding roller 2. The open end of the bag for unwinding passes through multiple unpowered guiding rollers 5 inside the rack 1 and penetrates between the unwinding driving roller 102 and the pressing roller 103. The unwinding driving motor 101 can drive the unwinding driving roller 102 to rotate. The pressing roller 103 is installed on the top of the rack 1 through a swing lever 105, and the outer surface of the pressing roller 103 is used to press the bag tightly. The unwinding driving motor 101 drives the unwinding driving roller 102 to perform rolling unwinding and feeding, so that the unwinding end of the bag penetrates into the conveying channel 2013.

[0084] Bag breaking: When the position induction switch senses the conveying of the bag and the bag breaking line on the bag reaches between the unwinding driving roller 102 and the conveying device 201, the unwinding driving motor 101 controls the unwinding driving roller 102 to stop rotating. At this time, the pressing roller 103 presses the bag tightly. Under the continuous rotation and conveying of the two conveyor belts 2011, the front end of the bag is pulled and broken along the bag breaking line. The independent bag after bag breaking continues to be conveyed by the conveyor belt 2011 and passes through the feeding hole.

[0085] Bag opening: After the sensor senses that the bag opening penetrates into the feeding hole 2025, the conveying driving motor 2014 stops rotating. The bag opening driving motor drives the rotation of the bag opening belt, so that the first group and the second group of clamping components move relatively closer under the rotation of the belt. When the first group and the second group of clamping components move towards the feeding hole 2025, the stopper 2026 on the support table 2021 blocks the stop rod 2002224 on the clamping component, so that the driving rod 202223 can drive the upper / lower connecting rods to open simultaneously under the driving of the stop rod 2002224, thereby driving the upper / lower jaws to open. At this time, the bag opening driving motor reverses, so that the first group and the second group of clamping components move away from the feeding hole 2025 in the reverse direction. The stopper 2026 releases the block on the stop rod 2002224, and the driving rod 202223 can drive the upper / lower connecting rods to close simultaneously, thereby driving the upper / lower jaws to clamp the bag mouth end of the bag and move away from each other, so as to open the bag mouth of the bag.

[0086] Opening and forming: The first retractor 3084 is driven by the first driving member 308 to move along the "S"-shaped driving groove 311 on the inner side of the vertical plate. At the same time, the telescopic end of the first retractor 3084 can drive the first guide rod 3083 to move along the "L"-shaped guide groove 310, so that it drives the first group of bag opening rods 304 to descend through the first guide rod 3083 and slide along the first slide groove 302, thereby forming a descent and outward expansion at the same time. At the same time, the lifting drive motor 601 drives the bag delivery conveying mechanism 400 to rise to assist in opening the forming mechanism 300. Forming, specifically, the first driving member 308 and the second driving member 309 are linked and synchronously controlled. The operation process and principle of the first driving member 308 and the second driving member 309 are consistent. Here, the driving action of the second driving member 309 is not specifically described; four bag opening shafts 3041 are provided, and the four bag opening shafts 3041 are distributed in a rectangular shape, which can assist in opening the bag more evenly and improve the efficiency of bag opening and forming. The bag is made rectangular by the opening and forming mechanism 300, thereby improving the accuracy and efficiency of subsequent packaging operations;

[0087] Finished product output: By opening the forming mechanism 300, the four bag opening shafts 3041 are driven to move quickly close to the feeding hole 2025 to form a reset. At this time, the cabinet door 3 on one side of the control frame 1 is opened to form an opening connected to the outside. The lifting drive motor 601 drives the bag discharge conveyor mechanism 400 to communicate with one side of the opening of the frame 1, and connects the bag discharge conveyor mechanism 400 with the conveyor belt of the bag discharge mechanism 500, so that the bag discharge conveyor mechanism 400 guides the finished product belt 404 to the conveyor belt through the bag discharge roller 402 or the material belt 404, so that the user can take the bag and use it.

[0088] The present invention realizes a fully automated process from unwinding, conveying, bag opening, forming to discharge of material bags through the coordinated operation of the unwinding and feeding mechanism 100, the conveying device 201, the clamping and bag opening device 202, the opening and forming mechanism 300 and the bag discharge conveying mechanism 400 arranged in the frame 1. Compared with the defects of traditional bag-taking machines that require manual bag breaking and bag opening and forming, this solution eliminates the manual operation link, significantly improves the fully automated operation of the bag-taking machine, and ensures efficient and continuous bag discharge in places such as supermarkets.

[0089] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are all within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. A fully automatic self-service bag dispenser, comprising a frame, and a unwinding roller for loading a roll of plastic bags is arranged inside the frame, characterized in that: Inside the frame, there are a unwinding and feeding station, a bag clamping and transferring station, an opening and forming station, and a bag discharging and transferring station. An unwinding and feeding mechanism for driving the unwinding end of the bag to be transferred to the bag clamping and transferring station is arranged at the feeding station. A bag clamping and transferring mechanism is arranged at the bag clamping and transferring station. The bag clamping and transferring mechanism includes a conveying device for conveying the bag and a clamping and opening device for clamping and opening the bag. The input end of the conveying device extends towards the unwinding and feeding mechanism, and the output end of the conveying device extends towards the clamping and opening device, so that the unwinding end of the bag enters the conveying device through the drive of the unwinding and feeding mechanism. The conveying device is used for clamping the unwinding end of the bag and conveying it to the clamping and opening device. An opening and forming mechanism for supporting and relatively expanding the bag is arranged at the opening and forming station. A bag discharging and transferring mechanism for conveying the bag is arranged at the bag discharging and transferring station. A liftable and openable cabinet door is arranged on the side of the frame, and a bag discharging rack communicated with the bag discharging transmission mechanism is arranged on the side of the frame close to the cabinet door. A bag discharging mechanism for transferring the bag to the outside of the frame is arranged on the bag discharging rack. The bag discharging and transferring station can drive the bag discharging and transferring mechanism to move up and down relative to the opening and forming mechanism through a lifting mechanism, so that the bag discharging and transferring mechanism is connected to the bag discharging mechanism through the lifting drive of the lifting mechanism.

2. The fully automatic self-service bag dispenser according to claim 1, wherein: The unwinding roller, the bag discharging and transferring mechanism, the bag clamping and transferring mechanism, the opening and forming mechanism, and the unwinding and feeding mechanism are arranged from the bottom to the top of the frame in sequence. A guide roller for transferring the unwinding end of the bag is arranged on the side of the frame.

3. The fully automatic self-service bag dispenser according to claim 2, characterized in that: The unwinding and feeding mechanism is arranged at the top of the frame. The unwinding and feeding mechanism includes an unwinding drive motor, an unwinding drive roller, and a pressure roller. The output end of the unwinding drive motor is connected to one end of the unwinding drive roller through an unwinding transmission part, so that the unwinding drive motor can drive the unwinding drive roller to rotate. The pressure roller is installed at the top of the frame through a swing lever, and the outer surface of the pressure roller contacts the unwinding drive roller.

4. The fully automatic self-service bag dispenser according to claim 1, wherein: The conveying device includes two symmetrically arranged conveyor belts. The two conveyor belts are vertically installed on the support platform through a support plate, and a conveying channel for clamping and conveying the unwinding end of the bag is formed between the two conveyor belts. The side of the frame can drive the two conveyor belts to rotate through a conveying drive motor, so that the unwinding end of the bag is conveyed along the conveying channel to the clamping and opening device.

5. The fully automatic self-service bag dispenser according to claim 4, characterized in that: The clamping and opening device includes a support platform, a first set of clamping components and a second set of clamping components arranged at the bottom of the support platform. The first set of clamping components and the second set of clamping components are arranged symmetrically left and right. An opening drive part is arranged at the bottom of the support platform. The opening drive part can drive the first set of clamping components and the second set of clamping components to approach or move away from each other relatively. A feeding hole communicated with the conveying is arranged on the support platform. The feeding hole is arranged between the first set of clamping components and the second set of clamping components.

6. The fully automatic self-service bag dispenser according to claim 5, wherein: Both the first set of clamping components and the second set of clamping components include openable and closable jaws, connecting rods, and mounting plates. The jaws are connected to the mounting plates through the connecting rods, and the clamping ends of the jaws extend towards the feeding hole. The bottom of the support table is connected to the mounting plate through a sliding member. The bag-opening driving member can drive the mounting plate to reciprocate along the sliding member through a connecting member. One end of the sliding member extends towards the feeding hole, so that the mounting plate can drive the jaws to move along the extension direction of the sliding member. A chute is provided on the support table, and the driving portion of the connecting rod passes through the chute and is exposed on the support table. A stopper for driving the connecting rod to drive the jaws to open and close is provided on the support table; When the bag-opening driving member drives the mounting plate to drive the jaws to move towards the feeding hole along the sliding member, the stopper controls the driving portion of the connecting rod to drive the connecting rod to open the jaws. When the mounting plate drives the jaws to move away from the feeding hole, the connecting rod resets and clamps the mouth end of the material bag through the jaws. Under the movement of the bag-opening driving member driving the mounting plate, the mouth of the material bag is synchronously opened on both sides under the relative clamping of the first set of clamping components and the second set of clamping components.

7. The fully automatic self-service bag dispenser according to claim 5 or 6, characterized in that: The opening and forming mechanism includes two sets of symmetric moving members provided on the support table and a first set of bag-opening rods and a second set of bag-opening rods respectively provided on the two sets of moving members. A first chute and a second chute extending horizontally in the sliding direction of the moving members are provided on the support table. One ends of the first set of bag-opening rods and the second set of bag-opening rods respectively pass through the first chute and the second chute and extend towards the bottom of the support table. The other ends of the first set of bag-opening rods and the second set of bag-opening rods extend towards the top of the support table. A first driving member for driving the first set of bag-opening rods to move up and down and slide along the first chute is connected to the support table through a first set of vertical plates. A second driving member for driving the second set of bag-opening rods to move up and down and slide along the second chute is connected to the support table through a second set of vertical plates. Through the linkage of the first driving member and the second driving member, the first set of bag-opening rods and the second set of bag-opening rods can synchronously descend and expand away from the feeding hole relative to each other, realizing the opening and forming of the material bag.

8. The fully automatic self-service bag dispenser according to claim 7, characterized in that: The first set of bag-opening rods and the second set of bag-opening rods are installed on the moving members through sliding plates. Both the first set of bag-opening rods and the second set of bag-opening rods are composed of bag-opening shafts and sleeves. The sleeves are installed on the sliding plates, and the bag-opening shafts are paired and connected with the sleeves. The bag-opening shafts can move up and down along the axial direction of the sleeves, and a material clamp is connected to the end of the bag-opening shaft passing through the support table; The first set of vertical plates includes two oppositely arranged vertical plates one, and the second set of vertical plates includes two oppositely arranged vertical plates two. The first driving member is installed between the two vertical plates one, and the second driving member is installed between the two vertical plates two; The first driving member and the second driving member are both composed of an opening driving motor, a linkage rod, a guiding rod and two telescopic devices. Guide grooves and driving grooves are formed on the inner sides of the two first vertical plates and the two second vertical plates. The opening driving motor is connected to the linkage rod. One ends of the two telescopic devices are connected to one end of the linkage rod, and driving blocks that are paired with the driving grooves are arranged on the telescopic devices. The guiding rod is installed on the telescopic ends of the two telescopic devices and is paired with the guiding groove. The top end of the bag opening shaft is connected to the guiding rod. The rotation of the opening driving motor drives the telescopic devices to move along the driving grooves, and the telescopic devices drive the guiding rod to move along the guiding grooves.

9. A fully automatic self-service bag dispenser according to any one of claims 1-6, characterized in that: The lifting mechanism includes a lifting driving motor, a screw rod, a lifting transmission member and a lifting plate. The lifting driving motor is installed in the frame, and the output end of the lifting driving motor is connected to one end of the screw rod through a lifting driving member. The screw rod is connected to the lifting plate through a screw sleeve. The bag discharging conveying mechanism is installed on the lifting plate. The rotation of the screw rod can be driven by the lifting driving motor, so that the screw sleeve drives the bag discharging conveying mechanism to perform a lifting movement through the lifting plate. The bag discharging conveying mechanism includes a support frame, a plurality of bag discharging rollers arranged on the support frame, and a bag discharging driving motor for driving the bag discharging rollers to perform synchronous rotational movement. The support frame is arranged on the lifting plate. The bag discharging driving motor is connected to one ends of the plurality of bag discharging rollers through a chain assembly, so that the bag discharging driving motor can drive the plurality of bag discharging rollers to perform synchronous rolling conveyance.

10. The fully automatic self-service bag dispenser according to claim 9, characterized in that: Liftable cabinet doors are arranged on both sides of the frame. There are two bag discharging racks, and the two bag discharging racks are respectively communicated with the cabinet doors on both sides of the frame. Bag discharging discharging mechanisms are connected to the two bag discharging racks. The bag discharging discharging mechanism is composed of a conveyor belt. The conveying direction of the bag discharging rollers extends towards the bag discharging rack on one side of the frame. A plurality of material belts are arranged on the support frame, and the plurality of material belts are sequentially connected through a transmission rod. The transmission rod can be driven by a bag discharging transmission motor on the support frame to drive the plurality of material belts to perform synchronous rotational conveyance. The conveying direction of the material belts extends towards the bag discharging rack on the other side of the frame.

Images