Automatic bag sealing ice vending machine and packaging bag opening and closing method

Abstract

The application provides an automatic bag sealing ice vending machine and a packaging bag opening and closing method, which comprises an ice maker, a bag separating device, a bag moving device, a bag clamping device, a bag opening device, a supporting device and a bag sealing device. The bag sealing device is arranged below an ice outlet pipeline of the ice maker, the bag clamping device is arranged below the bag sealing device, the bag opening device is arranged in the middle of the bag clamping device, and the supporting device is arranged below the bag clamping device. The bag separating device is arranged on one side of the bag sealing device and is used for separating a tube film and making bags. The bag moving device is arranged across the bag separating device and the bag clamping device and is used for sending the separated single packaging bag at the bag separating device to the bag clamping device. The bag clamping device, the bag opening device and the bag moving device are matched to realize the opening and closing of the packaging bag mouth. The supporting device is used for supporting and weighing the ice blocks in the packaging bag. The bag sealing device is used for sealing the packaging bag mouth after the ice weighing is completed. The automatic ice feeding, bagging, weighing and sealing actions can be realized, the operation is convenient, and the waste is reduced.

Description

Technical Field

[0001] This invention relates to the field of ice vending machines, and more specifically, to a method for opening and closing packaging bags in an automatic sealing ice vending machine. Background Technology

[0002] Currently, most ice vending machines on the market are simple ice dispensing devices. Users need to bring their own containers or use the simple plastic bags or cups provided by the machine to collect ice cubes. They also need to manually seal the containers, which is quite troublesome and can easily lead to improper operation, resulting in ice cubes scattering and being wasted. This needs to be improved. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the technical problem to be solved by the present invention is to propose an automatic ice-sealing vending machine and a method for opening and closing packaging bags, which can automatically perform the actions of unloading ice into bags, weighing, and sealing bags, reducing manual operation, facilitating operation, and reducing waste.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This invention provides an automatic bag-sealing ice vending machine, comprising an ice maker, a bag-separating device, a bag-transferring device, a bag-clamping device, a bag-opening device, a supporting device, and a bag-sealing device installed inside a housing. The bag-sealing device is located below the ice outlet pipe of the ice maker, the bag-clamping device is located below the bag-sealing device, the bag-opening device is located in the middle of the bag-clamping device, and the supporting device is located below the bag-clamping device. The bag-separating device is located on one side of the bag-sealing device and is used to cut the tubular film and make bags. The bag-transferring device spans the bag-separating device and the bag-clamping device and is used to deliver the individual packaging bags separated at the bag-separating device to the bag-clamping device. The cooperation of the bag-clamping device, the bag-opening device, and the bag-transferring device realizes the opening and closing of the bag opening. The supporting device is used to support and weigh the ice cubes entering the packaging bag. The bag-sealing device is used to seal the bag opening after the ice has been weighed.

[0006] In a preferred embodiment of the present invention, the bag-separating device includes an unwinding mechanism, a guide roller, a film feeding mechanism, a first sealing mechanism, and a slitting mechanism mounted on a first frame; the unwinding mechanism is used to hold and release the roll of film, and the released roll of film is supported by the guide roller and guided to the film feeding mechanism; the film feeding mechanism clamps and pushes the roll of film, so that the roll of film passes through the first sealing mechanism and the slitting mechanism in sequence; the first sealing mechanism is used to press and seal the bottom of the roll of film; the slitting mechanism is used to cut and separate the sealed roll of film into bags.

[0007] In a preferred embodiment of the present invention, the bag transfer device includes a first driving structure and a first bag suction mechanism; the first driving structure spans the bag separating device and the bag clamping device, and the first bag suction mechanism is mounted on a first slide of the first driving structure. The first bag suction mechanism is driven to move back and forth between the bag separating device and the bag clamping device to deliver the separated individual packaging bags to the bag clamping device; the first bag suction mechanism cooperates with the bag clamping device and the bag opening device to realize the opening and closing of the bag opening.

[0008] In a preferred embodiment of the present invention, the first suction bag mechanism includes a second bracket, a third bracket, a second motor, and a first vacuum module; the second bracket is bolted to a first slide block; at least two second slide bars are installed on the bottom surface of the second bracket, extending in a direction perpendicular to the packaging bag; a matching second card is installed on the top surface of the third bracket, the second card being slidably engaged with the second slide bars; the second motor and the first vacuum module are mounted on the second bracket, the second motor driving the third bracket to slide along the second slide bars; at least two first suction cups are installed on the wall of the third bracket near the packaging bag, the first vacuum module being connected to the first suction cups via a flexible tube, enabling the first suction cups to have a negative pressure adsorption effect.

[0009] In a preferred embodiment of the present invention, the bag clamping device includes a second driving structure and two clamping mechanisms; the second driving structure is mounted on a second frame inside the housing; the second driving structure is used to drive the two clamping mechanisms to move synchronously towards each other or synchronously away from each other; the clamping part of the clamping mechanism extends above the supporting device; the position of the clamping mechanism corresponds to the height position of the first suction cup, and the distance between the gripping parts of the two clamping mechanisms is greater than the distance between the two first suction cups at both ends; the clamping mechanism is used to clamp the top two sides of the packaging bag, and is driven by the second driving structure to open and close, adapting to the bag opening device's opening action.

[0010] In a preferred embodiment of the present invention, the second driving structure includes two second slides, which are driven to move synchronously toward each other or synchronously away from each other; the clamping mechanism includes a fourth bracket, the end of which is bolted to the second slides, and an electric gripper is mounted on the fourth bracket.

[0011] In a preferred embodiment of the present invention, the bag opening device includes a fifth bracket, a third motor, and a second vacuum module. The fifth bracket is disposed between two clamping mechanisms, and a third card seat is installed on the bottom surface of the fifth bracket. A third slide bar is correspondingly installed on the second frame, and the third slide bar is parallel to the second slide bar. The third card seat slides along the third slide bar. The third motor is installed on the second frame and is used to drive the fifth bracket to slide along the third slide bar. At least two second suction cups are installed on the wall of the fifth bracket near the supporting device. The second vacuum module is connected to the second suction cups through a hose, so that the second suction cups have a negative pressure adsorption effect.

[0012] In a preferred embodiment of the present invention, the supporting device includes a support frame and a supporting weighing mechanism; the support frame is fixedly installed in the box body by bolts, the front wall of the support frame is open and corresponds to and communicates with the material inlet at the box door; the top of the support frame is provided with a first opening, and the side wall of the support frame near the bag separating device is provided with a second opening, which communicates with the first opening; the first opening is located below the bag clamping device; the second opening corresponds to the trajectory of the bag transfer device for laterally transferring the packaging bag, and the packaging bag enters the interior of the support frame through the second opening; the supporting plate of the supporting weighing mechanism is located inside the support frame and can be adjusted to move vertically for follow-up support.

[0013] In a preferred embodiment of the present invention, the supporting weighing mechanism includes a support plate, a weighing sensor, a sixth bracket, and a third drive structure; the rear wall of the support frame has a vertically extending third opening, the third drive structure is mounted on the support frame and is positioned in relation to the third opening; the sixth bracket is mounted on the third slide of the third drive structure.

[0014] The load cell is mounted on the third slide and extends into the interior of the support frame through the third opening. The support plate is mounted on the top surface of the load cell.

[0015] The present invention also provides a method for opening and closing packaging bags of an automatic sealing ice vending machine, comprising the following steps:

[0016] S1, the bag transfer device picks up the packaging bag from the bag separating device and moves it to the bag clamping device;

[0017] S2, the bag clamping device clamps the top two sides of the packaging bag;

[0018] S3, the bag opening device adsorbs and grabs the other side of the bag opening;

[0019] S4, the first suction bag mechanism and the bag opening device drive the two walls of the packaging bag to move outward to a preset position; the bag clamping device drives the two sides of the packaging bag to move inward to a preset position, so that the bag opening of the packaging bag is opened to a preset size;

[0020] S5, after the amount of ice to be added reaches the preset value, the first suction bag mechanism and the bag opening device drive the two walls of the packaging bag to move inward to the preset position; the bag clamping device drives the two sides of the packaging bag to move outward to the preset position, so that the bag opening of the packaging bag is closed.

[0021] The beneficial effects of this invention are as follows:

[0022] This invention provides an automatic bag-sealing ice vending machine, comprising an ice maker, a bag-separating device, a bag-transferring device, a bag-clamping device, a bag-opening device, a supporting device, and a bag-sealing device installed inside a housing. The bag-separating device is used to cut the film and make bags; the bag-transferring device is used to send the individual packaging bags separated at the bag-separating device to the bag-clamping device; the bag-clamping device, the bag-opening device, and the bag-transferring device work together to open and close the bag opening; the supporting device is used to support and weigh the ice cubes entering the packaging bag; the bag-sealing device is used to seal the bag opening after the ice has been weighed. The machine automatically performs a series of actions: film separation and bag making, bag transfer, bag clamping, bag opening, ice unloading, weighing, bag closing, and sealing. This completes the automatic ice unloading, quantity control, and bag sealing actions, achieving automatic vending, reducing manual intervention, facilitating operation, and preventing waste caused by spillage due to improper operation. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of an automatic bag-sealing ice vending machine provided in a specific embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of an automatic bagging ice vending machine provided in a specific embodiment of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the bag-separating device provided in a specific embodiment of the present invention;

[0026] Figure 4 This is a three-dimensional unfolded structural diagram of the bag-separating device provided in a specific embodiment of the present invention;

[0027] Figure 5 This is a cross-sectional view of the bag-separating device provided in a specific embodiment of the present invention;

[0028] Figure 6 This is a partial three-dimensional structural diagram of the bag-separating device provided in a specific embodiment of the present invention;

[0029] Figure 7 This is a three-dimensional structural schematic diagram of the bag transfer device provided in a specific embodiment of the present invention;

[0030] Figure 8 This is a three-dimensional unfolded structural diagram of the bag-transfer device provided in a specific embodiment of the present invention;

[0031] Figure 9 This is a three-dimensional structural diagram of the bag sealing device, bag clamping device, and bag opening device provided in a specific embodiment of the present invention;

[0032] Figure 10 This is a first-view perspective three-dimensional unfolded structural diagram of the bag sealing device, bag clamping device and bag opening device provided in a specific embodiment of the present invention.

[0033] Figure 11 This is a second-view three-dimensional unfolded structural diagram of the bag sealing device, bag clamping device and bag opening device provided in a specific embodiment of the present invention;

[0034] Figure 12 This is a three-dimensional structural diagram of the bag clamping device provided in a specific embodiment of the invention;

[0035] Figure 13 This is a three-dimensional structural diagram of the first adhesive pad provided in a specific embodiment of the present invention;

[0036] Figure 14 This is a three-dimensional structural diagram of the support device provided in a specific embodiment of the present invention;

[0037] Figure 15 This is a cross-sectional view of the support device provided in a specific embodiment of the present invention.

[0038] In the picture:

[0039] 100. Ice maker; 110. Ice outlet pipe;

[0040] 200. Bag separating device; 210. Unwinding mechanism; 220. Guide roller; 230. Film feeding mechanism; 231. First roller; 232. Second roller; 2321. Roller shaft; 2322. Rubber roller; 233. Fifth motor; 234. Vertical slider bearing seat; 240. First sealing mechanism; 241. First pressing structure; 2411. First pressing frame; 2412. First pressing strip; 2413. Guide bolt; 2414. First spring; 2415. First adhesive strip; 242. First heating plate; 243. Heating tube; 250. Slitting mechanism; 251. First cutter; 252. Second cutter; 260. First bracket; 270. Outer support plate; 280. First support plate; 290. First motor; 291. First roller;

[0041] 300. Bag transfer device; 310. First drive structure; 320. First bag suction mechanism; 321. Second motor; 322. Second bracket; 323. Third bracket; 324. First suction cup;

[0042] 400. Bag clamping device; 410. Second drive structure; 420. Clamping mechanism; 421. Fourth bracket; 422. Electric gripper; 4221. First gripper bar; 4222. Second gripper bar; 4223. First connecting rod; 4224. Electric push rod; 4225. First protrusion; 423. First rubber pad; 4231. Pad; 4232. Protrusion; 4233. Locking post; 4234. Protruding ring; 424. Second rubber pad;

[0043] 500. Bag opening device; 510. Fifth bracket; 520. Third motor; 530. Second suction cup;

[0044] 600, Supporting device; 610, Support frame; 611, First opening; 612, Second opening; 613, Third opening; 620, Supporting weighing mechanism; 621, Support plate; 622, Weighing sensor; 623, Sixth bracket; 624, Third drive structure; 6241, Fourth motor; 6242, Lead screw; 6243, Guide rod; 6244, First support frame; 625, Linear bearing; 700, Sealing device; 800, Box body; 810, First frame. Detailed Implementation

[0045] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0046] like Figure 1 , Figure 2 , Figures 9 to 11 As shown in the figure, a specific embodiment of the present invention discloses an automatic bag-sealing ice vending machine, including an ice maker 100, a bag-separating device 200, a bag-transferring device 300, a bag-clamping device 400, a bag-opening device 500, a supporting device 600, and a bag-sealing device 700 installed inside a housing 800; the bag-sealing device 700 is located below the ice outlet pipe 110 of the ice maker 100, the bag-clamping device 400 is located below the bag-sealing device 700, the bag-opening device 500 is located in the middle of the bag-clamping device 400, and the supporting device 600 is located in the middle of the bag-clamping device 400. Below the bag clamping device 400; the bag separating device 200 is located on one side of the bag sealing device 700, used to cut the tubular film and make bags; the bag transferring device 300 spans the bag separating device 200 and the bag clamping device 400, used to send the individual packaging bags separated at the bag separating device to the bag clamping device, and the cooperation of the bag clamping device, the bag opening device and the bag transferring device realize the opening and closing of the bag opening; the supporting device is used to support and weigh the ice cubes entering the packaging bag; the bag sealing device is used to seal the bag opening after the ice is weighed.

[0047] The above-mentioned automatic bag-sealing ice vending machine automatically performs a series of actions, including film-making, bag transfer, bag clamping, bag opening, ice loading, weighing, bag closing, and sealing. It completes the automatic ice loading, quantity control, and bag sealing actions, realizing automatic vending, reducing manual intervention, facilitating operation, and preventing waste caused by spillage due to improper operation.

[0048] It should be noted that ice makers are also mature equipment and will not be described in detail. The front wall of the cabinet is equipped with a retrieval door for retrieving goods, a touch screen for selection and control, and a water purification system for supplying pure water, an exhaust fan for cooling the compressor of the ice maker, and other mechanical structures. These are all commonly used instruments in automatic ice vending machines. These instruments and equipment are well known to those skilled in the art and will not be described in detail.

[0049] Furthermore, such as Figures 3 to 6 As shown, the bag-separating device 200 includes an unwinding mechanism 210, a guide roller 220, a film feeding mechanism 230, a first sealing mechanism 240, and a slitting mechanism 250 mounted on a first frame 810. The unwinding mechanism 210 is used to hold and release the roll of film. The released roll of film is supported by the guide roller and guided to the film feeding mechanism. The film feeding mechanism 230 clamps and pushes the roll of film, so that the roll of film passes through the first sealing mechanism 240 and the slitting mechanism 250 in sequence. The first sealing mechanism 240 is used to press and seal the bottom of the roll of film. The slitting mechanism 250 is used to cut and separate the sealed roll of film into bags.

[0050] This bagging device can produce appropriately sized packaging bags according to the amount of ice to be taken, which can not only meet packaging needs, but also reduce waste of film material; specifically, the length of the film conveyed forward is controlled by the film feeding mechanism to meet the packaging requirements of the corresponding ice quantity.

[0051] Furthermore, the film feeding mechanism 230 includes a first roller 231, a second roller 232, a fifth motor 233, and a vertical slider bearing seat 234. The first roller is rotatably mounted on the first frame via bearings. The second roller 232 is positioned above the first roller 231 and is mounted on the first frame via two symmetrically arranged vertical slider bearing seats. A clamping channel for holding and pushing the cylindrical film is formed between the second roller and the first roller. The fifth motor is fixedly mounted on the first frame with bolts, and the output shaft of the fifth motor is connected to the end shaft of the first roller via a synchronous belt drive assembly. The second roller 232 includes a roller shaft 2. 321, Multiple evenly spaced rubber rollers 2322 are installed on the roller shaft 2321, and the first roller strip is a rubber roller strip structure; with this structure, a certain clamping force can be formed between the first roller strip and the second roller strip, which can provide sufficient pushing force to the film, allowing the film to move forward smoothly to a preset length; the use of the vertical slider bearing seat is to facilitate the adjustment of the second roller strip, which facilitates the debugging of the machine and the adjustment of the clamping force; it should be noted that the vertical slider bearing seat is an existing structural device that can be purchased and used on the market, and details will not be elaborated.

[0052] Furthermore, the first sealing mechanism 240 includes a first pressing structure 241 and a first heating plate 242. The first heating plate 242 is embedded with an electric heating tube 243. The first pressing structure 241 is located above the first heating plate 242. The first pressing structure 241 is driven to rise and fall by the first motor 290. When it moves down to the preset position, the first pressing structure and the first heating plate clamp and heat seal the cylindrical film at this position.

[0053] Furthermore, the first pressing structure 241 includes a first pressing frame 2411, a first pressing strip 2412, and at least two guide bolts 2413. The first pressing frame 2411 is mounted on a first bracket 260, which is driven to rise and fall by a first motor 290. The guide bolts 2413 are vertically arranged and movably pass through the first pressing frame 2411. The bottom end of the guide bolts 2413 is threaded to the first pressing strip 2412. A first spring 2414 is sleeved at each guide bolt 2413, and the first spring provides downward elastic force to the first pressing strip. With this structure, the first pressing structure can have a buffer pressing function, and can perform a pressing action of first contact and then secondary pressing on the diaphragm, making the overall force more uniform and improving the heat sealing quality.

[0054] Furthermore, the bottom surface of the first pressure strip 2412 is provided with a first slot, and a first adhesive strip 2415 is fixedly clamped in the first slot; this can prevent direct rigid contact, and the first adhesive strip plays a buffering role, making the force distribution more uniform and improving the heat sealing quality.

[0055] Furthermore, first brackets are screwed onto both sides of the first bracket, and a first slide bar extending vertically is fixed on the first frame. The first brackets and the first slide bar slide in a sliding engagement. A first roller 291 is mounted on the output shaft of the first motor 290. The first roller has an eccentric roller structure. The middle of the first bracket 260 has a first hole 261 that engages with the first roller 291. The first roller extends into the first hole, and the first motor drives the first roller to rotate, causing the first bracket to move vertically. The engagement between the first bracket and the first slide bar achieves a sliding engagement, which further limits the movement trajectory of the first bracket. The engagement between the eccentric first roller and the first hole allows for rapid response and adjustment. It also limits the downward stroke, which is equivalent to limiting the applied force, maintaining a uniform force, and ensuring the uniformity of heat sealing and cutting quality.

[0056] Furthermore, the slitting mechanism 250 includes a first cutter 251 and a second cutter 252. The first cutter 251 is fixedly mounted on the first frame 810 with screws, and the first cutter is located on the side of the first heating plate away from the first motor. The second cutter 252 is fixedly mounted on the first pressing frame 2411 with screws. The blade positions of the first cutter and the second cutter correspond. When the second cutter moves down to the preset position, it cooperates with the first cutter to cut and separate the tubular film. With this structural design, the second cutter can be synchronously driven by the first motor, without the need for an additional separate drive mechanism to complete the cutting action. This facilitates the layout of the overall structure and reduces costs.

[0057] Furthermore, an outer support plate 270 is installed on the first frame 810. The outer support plate is located below the first cutter and protrudes outward. It can push the film outward, which can provide sufficient support surface and operating space for the bag transfer device to suck up the film. It can also make the film and the first cutter in linear contact, which can facilitate effective cutting when the second cutter moves down.

[0058] Furthermore, a first support plate 280 is provided on the side of the first heating plate 242 near the first roller strip. The top surface of the first support plate 280 is tangent and flush with the top of the first roller strip 231. The top surface of the first support plate 280 is lower than the top surface of the first heating plate 242, and the tip of the blade of the first cutter 251 is located between the top surface of the first heating plate 242 and the top surface of the first support plate 280. The first support plate can support the tubular film passing through or between the first heating plate and the first roller strip, so that the tubular film can maintain a gap with the first heating plate without the first pressure strip moving down, thus preventing the tubular film from shrinking and deforming due to heat and affecting the packaging effect.

[0059] It should be noted that the unwinding mechanism includes a first roller shaft, on which a roll clamping component and a tension adjuster are installed. These components can be used to clamp and install the roll film and adjust its tension. The above structures are commonly used structural components for unwinding roll film and are well known to those skilled in the art. They will not be described in detail here.

[0060] Furthermore, such as Figure 7 , Figure 8As shown, the bag transfer device 300 includes a first drive structure 310 and a first suction mechanism 320. The first drive structure 310 spans the bag separating device 200 and the bag clamping device 400. The first suction mechanism 320 is mounted on a first slide of the first drive structure 310. The first suction mechanism is driven to move back and forth between the bag separating device and the bag clamping device to deliver the separated individual packaging bags to the bag clamping device. The first suction mechanism cooperates with the bag clamping device and the bag opening device to realize the opening and closing of the packaging bag opening. The bag transfer device can serve as a transfer device between the bag separating device and the bag sealing device to realize the transfer of packaging bags. On the other hand, it can also serve as an auxiliary device for opening bags, cooperating with the bag clamping device and the bag opening device to complete the opening and closing adjustment of the packaging bag opening, realizing the multi-functional effect of one device.

[0061] The first driving structure is a linear motion module structure, including but not limited to a lead screw module structure, a synchronous belt linear module, or a linear slide module. The first driving structure drives the entire first bag suction mechanism to move back and forth, so as to convey the packaging bag to the bag separating device and the subsequent reset movement.

[0062] Furthermore, the first suction bag mechanism 320 includes a second bracket 322, a third bracket 323, a second motor 321, and a first vacuum module; the second bracket is bolted to the first slide block; at least two second slide bars are installed on the bottom surface of the second bracket, extending perpendicularly to the packaging bag; a matching second bracket is correspondingly installed on the top surface of the third bracket, the second bracket slidingly engaging with the second slide bars; the second motor and the first vacuum module are mounted on the second bracket, the second motor 321 driving the third bracket 323 to slide along the second slide bars; at least two first suction cups 324 are installed on the wall of the third bracket 323 near the packaging bag, and the first vacuum module is connected to the first suction cups via a flexible tube. This design enables the first suction cup to have a negative pressure adsorption effect. The third bracket and the first suction cup can move back and forth in the direction perpendicular to the packaging bag. For example, at the bag-separating device, the first suction cup can move backward away from the film tube without affecting the film's transport. When picking up the packaging bag, it moves forward to approach. At the sealing device, the first forward movement moves the packaging bag to the clamping area of ​​the bag-clamping device. After the bag-clamping device is in place and the second suction cup is in position, the first suction cup moves backward to open the bag opening, facilitating ice filling. After the ice filling and weighing are complete, the second forward movement closes the bag opening, allowing the sealing device to press and heat-seal, completing the packaging.

[0063] Furthermore, the output shaft of the second motor is fixedly mounted with a first gear, and the top surface of the third bracket is correspondingly mounted with a first rack. The first gear and the first rack mesh and drive each other, and the second motor drives the third bracket to slide along the second slide bar. The first vacuum module includes a vacuum pump, a solenoid valve and corresponding pipeline components. The vacuum pump provides negative pressure conditions, and the solenoid valve realizes the opening and closing of the gas path to achieve the coordination of suction and release. This module structure is a relatively conventional negative pressure suction module, which is well known to those skilled in the art, and will not be described in detail.

[0064] Furthermore, such as Figure 12 As shown, the bag clamping device 400 includes a second drive structure 410 and two clamping mechanisms 420. The second drive structure is installed on a second frame inside the housing. The second drive structure is used to drive the two clamping mechanisms to move synchronously towards each other or synchronously away from each other. The clamping part of the clamping mechanism 420 extends above the support device 600. The position of the clamping mechanism 420 corresponds to the height position of the first suction cup 324. The distance between the gripping parts of the two clamping mechanisms 420 is greater than the distance between the two first suction cups 324 at both ends. The clamping mechanism is used to clamp the top two sides of the packaging bag, and the second drive structure drives the opening and closing action of the bag opening device. The bag clamping device mainly plays two roles: first, to assist the bag moving device and the bag opening device in opening and closing the bag mouth; second, to firmly clamp the packaging bag, providing clamping force other than negative pressure suction, to prevent the packaging bag from falling off during the ice-breaking process.

[0065] Furthermore, the second drive structure includes two second slides, which are driven to move synchronously towards each other or synchronously away from each other; the clamping mechanism 420 includes a fourth bracket 421, the end of which is bolted to the second slide, and an electric gripper 422 is mounted on the fourth bracket 421; the clamping mechanism mainly uses the electric gripper to clamp the packaging bag, and both gripping and releasing are operated separately, which is convenient for practical application control;

[0066] Furthermore, the electric gripper 422 includes an electric push rod 4224 and a gripper assembly. The gripper assembly includes a first gripper bar 4221, a second gripper bar 4222, and a first connecting rod 4223. One end of the first gripper bar 4221 is hinged to the output shaft end of the electric push rod 4224. The second gripper bar 4222 is fixedly mounted on the fourth bracket 421 by screws. Both ends of the first connecting rod 4223 are hinged to the first gripper bar 4221 and the second gripper bar 4222, respectively. The first gripper bar and the second gripper bar form a clamping opening near the center of the second drive structure. The extension and retraction of the electric push rod realizes the opening and closing of the first gripper bar and the second gripper bar. With this structure, the extension and retraction of the output shaft of the electric push rod can be converted into the opening and closing action of the first gripper bar and the second gripper bar, achieving the required clamping effect. Moreover, the overall response speed is fast, improving the clamping / releasing efficiency.

[0067] Furthermore, the second claw rod is located on the side of the electric push rod near the center of the second drive structure, and the outer end of the second claw rod 4222 is fixedly provided with a first protrusion 4225 on the side away from the first claw rod 4221; when the gripper assembly is in the unfolded state, the free ends of the first claw rods all fall on the side of the first protrusion away from the center of the second drive structure; the distance between the two first protrusions is less than the width of the packaging bag, and the distance between the free ends of the two first claw rods is greater than the width of the packaging bag; under this structural design, the gripping jaw of the gripper assembly can be biased towards the center of the second drive structure, and the free end of the first claw rod swings around the rotation fulcrum to open and close; more specifically, in the process of moving the bag to clamp and fix it, the bag moving device first moves the packaging bag forward to the position of the first protrusion, and then the electric push rod is activated to extend the output shaft, so that the first claw rod swings and clamps the side wall of the packaging bag, and the required clamping or releasing effect can be achieved without adjusting the second drive structure;

[0068] Of course, it should be noted that electric grippers can also use split gripper modules, which can also achieve the gripping / releasing effect; however, due to the limited gripping opening of this type of gripper module, the action of gripping / releasing the bag requires lateral movement with the cooperation of the second drive structure each time, which results in a slower response speed and increased power consumption; therefore, the above-mentioned linkage-type gripper assembly is more effective.

[0069] Furthermore, a first rubber pad 423 is fixedly installed on the free end of the first claw 4221 near the wall of the first protrusion, and a second rubber pad 424 is fixedly installed on the outer wall of the first protrusion 4225; this provides soft contact, which can provide sufficient clamping force and prevent damage to the packaging bag.

[0070] Furthermore, such as Figure 13 As shown, the first rubber pad 423 includes a pad block 4231. The front wall of the pad block 4231 is fixedly provided with multiple protrusions 4232 for increasing friction, and the rear wall of the pad block 4231 is fixedly provided with at least two locking posts 4233. Each locking post 4233 is fixedly provided with a protruding ring 4234 for preventing detachment. The structure of the second rubber pad 424 is the same as that of the first rubber pad 423. The end of the first claw bar 4221 and the first protrusion 4225 are provided with first through holes adapted to the locking posts 4233. The first and second rubber pads are detachable, facilitating manufacturing and replacement in case of damage. The protrusions increase the friction between the pad block and the packaging bag, providing a more stable clamping force. The locking posts and protruding rings securely attach the pad to the first and second claw bars, preventing easy loosening and falling off.

[0071] Furthermore, the second drive structure is a double slide linear movement module structure, including but not limited to a lead screw module structure, a synchronous belt linear module, or a linear slide module. By driving the two second slides to move synchronously towards each other or synchronously away from each other, the synchronous moving towards each other or away from each other of the two clamping mechanisms is realized, effectively clamping the packaging bag and cooperating to open and close the bag opening.

[0072] Furthermore, the bag opening device 500 includes a fifth bracket 510, a third motor 520, and a second vacuum module. The fifth bracket 510 is located between two clamping mechanisms 420. A third card seat is installed on the bottom surface of the fifth bracket, and a third slide bar is correspondingly installed on the second frame. The third slide bar is parallel to the second slide bar, and the third card seat slides along the third slide bar. The third motor 520 is installed on the second frame to drive the fifth bracket 510 to slide along the third slide bar. At least two second suction cups 530 are installed on the wall of the fifth bracket 510 near the support device 600. The second vacuum module is connected to the second suction cups through a hose, so that the second suction cups have a negative pressure adsorption effect. With this structural design, the fifth bracket and the second suction cups are moved back and forth by the third motor, and the opening and closing adjustment operation of the bag opening is realized in cooperation with the first suction bag mechanism.

[0073] The output shaft of the third motor is fixedly equipped with a second gear, and the top surface of the fifth bracket is correspondingly equipped with a second rack. The second gear and the second rack mesh and drive each other. The third motor drives the fifth bracket to slide along the third slide bar. The second vacuum module includes a vacuum pump, a solenoid valve and corresponding pipeline components. The vacuum pump provides negative pressure conditions, and the solenoid valve realizes the opening and closing of the gas path to achieve the coordination of gas extraction and gas release. This module structure is a relatively conventional negative pressure suction module, which is well known to those skilled in the art and will not be described in detail.

[0074] Furthermore, such as Figure 14 , Figure 15 As shown, the supporting device 600 includes a support frame 610 and a supporting weighing mechanism 620. The support frame is fixedly installed in the box by bolts. The front wall of the support frame is open and communicates with the material inlet at the box door. The top of the support frame 610 is provided with a first opening 611, and the side wall of the support frame 610 near the bag separating device is provided with a second opening 612, which communicates with the first opening. The first opening 611 is located below the bag clamping device 400. The second opening 612 corresponds to the trajectory of the bag transfer device 300 in the horizontal transfer of the packaging bag, and the packaging bag enters the support frame through the second opening. The supporting plate 621 of the supporting weighing mechanism 620 is located inside the support frame 610 and can be adjusted to move vertically for follow-up support. This structural design can support the packaging bag at all times during the ice-falling process. It can provide corresponding support at the corresponding height position according to the weight of the ice, reduce or even eliminate the influence of the weight of the ice on the clamping mechanism, and prevent the packaging bag from loosening.

[0075] Furthermore, the supporting weighing mechanism 620 includes a supporting plate 621, a weighing sensor 622, a sixth bracket 623, and a third drive structure 624; the rear wall of the support frame 610 has a vertically extending third opening 613, the third drive structure 624 is installed on the support frame 610 and is positioned in relation to the third opening; the sixth bracket 623 is installed on the third slide of the third drive structure 624; the weighing sensor is installed on the third slide, the weighing sensor 622 extends into the interior of the support frame 610 through the third opening 613, and the supporting plate 621 is installed on the top surface of the weighing sensor 622; under this structural design, the supporting plate supports the bottom of the packaging bag, transferring the weight of the ice to the weighing sensor for real-time monitoring, so that the height position of the supporting plate can be adjusted in time by the third drive structure to meet the required supporting effect and prevent the ice from entering the packaging bag;

[0076] Furthermore, the third drive structure 624 includes a fourth motor 6241, a lead screw 6242, a guide rod 6243, and two opposing first support frames 6244; the fourth motor is bolted to the first support frame; the first support frame is bolted to the rear wall of the support frame, corresponding to the upper and lower ends of the third opening; the lead screw is rotatably mounted between the two first support frames via bearings; one end of the lead screw 6242 is connected to the output shaft of the fourth motor 6241 via a synchronous belt drive assembly; the third slide is a lead screw sleeve, adapted to be fitted on the lead screw. The sixth bracket is installed on the third slide; the guide rod is installed between the two first support frames, and a linear bearing 625 is installed on the sixth bracket 623, which is sleeved on the guide rod 6243; since the support plate is used to support ice blocks and has high load-bearing requirements, a screw structure is used as the driving component. The self-locking of the screw and the screw sleeve provides effective support and prevents easy loosening and slippage; the combination of the screw and the linear bearing further limits the movement of the third slide, allowing it to rise and fall smoothly;

[0077] Furthermore, there are two guide rods, symmetrically arranged on both sides of the lead screw; two linear bearings are installed on the sixth bracket; this can further enhance the limiting and guiding effect; and since most of the force on the support plate is transferred to the sixth bracket, the cooperation between the double set of guide rods and linear bearings can also achieve force distribution to a certain extent, preventing the lead screw and lead screw sleeve from being deformed due to concentrated force, so that it can maintain stable and smooth vertical movement.

[0078] Furthermore, the opening width of the second opening 612 gradually widens from the top down; for some longer packaging bags, the packaging bag is clamped at the top, and the bottom may shake during its transfer. Enlarging the opening can ensure that it can smoothly enter the support frame.

[0079] Furthermore, the bag sealing device comprises a heating component, a pressing mechanism, and a driving component. The heating component is installed at the pressing part of the pressing mechanism, and the driving component drives the pressing mechanism to open and close, thereby heat-sealing the bag opening. This device is a commonly used structural component in the packaging field and is well known to those skilled in the art, so it will not be described in detail here.

[0080] It should be noted that the entire device is also equipped with multiple infrared sensors for monitoring the movement into place. These sensors are used in actions such as the first drive structure driving the movement of the first suction bag mechanism, the second motor driving the movement of the third bracket, the second drive structure driving the movement of the clamping mechanism, and the third motor driving the movement of the fifth bracket. The application of this module is very common and well known to those skilled in the art, so it will not be elaborated on in detail.

[0081] This invention also discloses a method for opening and closing packaging bags in an automatic ice-sealing vending machine, comprising the following steps:

[0082] S1, the bag transfer device picks up the packaging bag from the bag separating device and moves it to the bag clamping device;

[0083] S2, the bag clamping device clamps the top two sides of the packaging bag;

[0084] S3, the bag opening device adsorbs and grabs the other side of the bag opening;

[0085] S4, the first suction bag mechanism and the bag opening device drive the two walls of the packaging bag to move outward to a preset position; the bag clamping device drives the two sides of the packaging bag to move inward to a preset position, so that the bag opening of the packaging bag is opened to a preset size;

[0086] S5, after the amount of ice to be added reaches the preset value, the first suction bag mechanism and the bag opening device drive the two walls of the packaging bag to move inward to the preset position; the bag clamping device drives the two sides of the packaging bag to move outward to the preset position, so that the bag opening of the packaging bag is closed.

[0087] S6, the sealing device seals the opening of the packaging bag;

[0088] In step S1, the top of the packaging bag falls into the heat-sealing area of ​​the sealing device; when the sealing device is in standby mode, the heat-sealing part is located above the top of the second opening.

[0089] In step S2, the second motor drives the third bracket to move forward, causing the packaging bag to move forward to the preset position and enter the clamping range of the clamping mechanism; then the top two sides of the packaging bag are clamped by the clamping mechanism.

[0090] This invention has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. This invention is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims are also within the protection scope of this invention.

Claims

1. An automatic bagging and ice-dispensing machine, characterized in that: Includes an ice maker, bag separating device, bag transferring device, bag clamping device, bag opening device, supporting device, and bag sealing device installed inside the box; The bag sealing device is located below the ice outlet pipe of the ice maker, the bag clamping device is located below the bag sealing device, the bag opening device is located in the middle of the bag clamping device, and the supporting device is located below the bag clamping device. The bag-splitting device is located on one side of the bag-sealing device and is used to cut the tubular film and make bags; The bag transfer device spans the bag separating device and the bag clamping device, and is used to send the individual packaging bags separated at the bag separating device to the bag clamping device. The bag clamping device, the bag opening device and the bag transfer device work together to open and close the bag opening. The supporting device is used to support and weigh the ice cubes entering the packaging bag; The sealing device is used to seal the opening of the packaging bag after the ice has been weighed.

2. The automatic bagging and ice-dispensing machine according to claim 1, characterized in that: The bag-separating device includes an unwinding mechanism, a guide roller, a film feeding mechanism, a first sealing mechanism, and a slitting mechanism, all mounted on the first frame. The unwinding mechanism is used to hold and release the roll of film. The released roll of film is supported by the guide roller and guided to the film feeding mechanism. The film feeding mechanism clamps and pushes the film tube, so that the film tube passes through the first sealing mechanism and the cutting mechanism in sequence; The first sealing mechanism is used to press and seal the bottom of the diaphragm. The slitting mechanism is used to cut and bag the sealed tubular film.

3. The automatic bagging and ice-dispensing machine according to claim 1, characterized in that: The bag transfer device includes a first drive structure and a first suction bag mechanism; The first drive structure spans the bag separating device and the bag clamping device. The first suction bag mechanism is installed on the first slide of the first drive structure. The first suction bag mechanism is driven to move back and forth between the bag separating device and the bag clamping device to deliver the separated individual packaging bags to the bag clamping device. The first suction bag mechanism works in conjunction with the bag clamping device and the bag opening device to open and close the bag opening.

4. An automatic bagging and ice-dispensing machine according to claim 3, characterized in that: The first suction bag mechanism includes a second bracket, a third bracket, a second motor, and a first vacuum module; The second bracket is bolted to the first slide block; The bottom surface of the second bracket is equipped with at least two second sliding strips, which extend in the direction perpendicular to the packaging bag; the top surface of the third bracket is equipped with a matching second card holder, which slides and engages with the second sliding strips. The second motor and the first vacuum module are mounted on the second bracket. The second motor is used to drive the third bracket to slide along the second slide bar. At least two first suction cups are installed on the wall of the third bracket near the packaging bag. The first vacuum module is connected to the first suction cups through a hose, so that the first suction cups have a negative pressure adsorption effect.

5. An automatic bagging and ice-dispensing machine according to claim 4, characterized in that: The bag clamping device includes a second drive structure and two clamping mechanisms; The second drive structure is installed on the second frame inside the housing; The second drive structure is used to drive the two clamping mechanisms to move synchronously toward each other or synchronously away from each other. The clamping part of the clamping mechanism extends above the supporting device; the position of the clamping mechanism corresponds to the height position of the first suction cup, and the distance between the gripping parts of the two clamping mechanisms is greater than the distance between the two first suction cups at both ends; The clamping mechanism is used to clamp the top two sides of the packaging bag, and the second drive structure drives the opening and closing action of the bag opening device.

6. An automatic bagging and ice-dispensing machine according to claim 5, characterized in that: The second drive structure includes two second slides, which are driven to move synchronously toward each other or synchronously away from each other. The clamping mechanism includes a fourth bracket, the end of which is bolted to the second slide, and an electric gripper is mounted on the fourth bracket.

7. An automatic bagging and ice-dispensing machine according to claim 6, characterized in that: The bag opening device includes a fifth bracket, a third motor, and a second vacuum module; The fifth bracket is located between the two clamping mechanisms. A third card seat is installed on the bottom surface of the fifth bracket. A third slide bar is installed on the second frame. The third slide bar is parallel to the second slide bar. The third card seat slides along the third slide bar. The third motor is mounted on the second frame and is used to drive the fifth bracket to slide along the third slide bar; At least two second suction cups are installed on the wall of the fifth bracket near the support device. The second vacuum module is connected to the second suction cups through a hose, so that the second suction cups have a negative pressure adsorption effect.

8. An automatic bagging and ice-dispensing machine according to claim 3, characterized in that: The supporting device includes a support frame and a supporting weighing mechanism; The support frame is fixedly installed inside the box with bolts. The front wall of the support frame is open and communicates with the material inlet at the box door. The top of the support frame is provided with a first opening, and the side wall of the support frame near the bag-separating device is provided with a second opening, which is connected to the first opening; the first opening is located below the bag clamping device; the second opening corresponds to the trajectory of the bag transfer device for laterally transferring the packaging bag, and the packaging bag enters the interior of the support frame through the second opening; The support plate supporting the weighing mechanism is located inside the support frame and can be adjusted to move vertically for follow-up support.

9. An automatic bagging and ice-dispensing machine according to claim 8, characterized in that: The supporting weighing mechanism includes a support plate, a weighing sensor, a sixth bracket, and a third drive structure; The rear wall of the support frame has a vertically extending third opening, the third drive structure is mounted on the support frame and is positioned for the third opening; the sixth bracket is mounted on the third slide of the third drive structure. The load cell is mounted on the third slide and extends into the interior of the support frame through the third opening. The support plate is mounted on the top surface of the load cell.

10. A method for opening and closing packaging bags in an automatic ice-sealing vending machine, characterized in that: Includes the following steps: S1, the bag transfer device picks up the packaging bag from the bag separating device and moves it to the bag clamping device; S2, the bag clamping device clamps the top two sides of the packaging bag; S3, the bag opening device adsorbs and grabs the other side of the bag opening; S4, the first suction bag mechanism and the bag opening device drive the two walls of the packaging bag to move outward to a preset position; the bag clamping device drives the two sides of the packaging bag to move inward to a preset position, so that the bag opening of the packaging bag is opened to a preset size; S5, after the amount of ice to be added reaches the preset value, the first suction bag mechanism and the bag opening device drive the two walls of the packaging bag to move inward to the preset position; the bag clamping device drives the two sides of the packaging bag to move outward to the preset position, so that the bag opening of the packaging bag is closed.

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