Opening pipe placing device of plastic film sealing beverage cup

Abstract

The invention discloses an opening pipe placing device for a plastic film sealing beverage cup. The opening pipe placing device comprises a straw conveying device, an upper guide pipe, a lower guide pipe, a top claw mechanism, a breaking mechanism and a shearing mechanism. The upper guide pipe and the lower guide pipe are aligned up and down; the opening breaking mechanism comprises an opening breaking petal capable of being opened and closed, a lower pointed cone is formed at a lower pipe opening of the lower guide pipe when the opening breaking petal is closed, and the pipe opening is opened when the opening breaking petal is opened; the shearing mechanism is located between the two guide pipes and comprises at least two shearing blades, and the shearing blades shear the suction pipe and block the lower pipe opening of the guide pipe when folded and open the pipe opening when separated. The top claw mechanism comprises a top claw, a first linkage mechanism and a second linkage mechanism, when the top claw is pushed in an abutting mode, the first linkage mechanism drives the breaking petals to be opened, and the second linkage mechanism drives the shearing blades to be opened. When the shearing blade is opened, the suction pipe conveying device drives the suction pipe to move downwards in the two guide pipes. According to the invention, automatic tube placement of plastic film sealed beverages can be realized, and penetration can be ensured.

Description

Technical Field

[0001] The invention relates to a beverage cup opening device. Background Art

[0002] In existing beverage vending machines, fully packaged beverages are generally provided directly. For beverages sealed with plastic film, such as yogurt, drinking is usually done by inserting a straw. To ensure smooth penetration of the plastic film seal, existing yogurts and other products are provided with hard straws. Providing hard straws and automatically inserting them in a beverage vending machine requires a single straw supply device, a straw grabbing device, and an insertion device. The insertion device also requires a certain puncture acceleration, resulting in a complex structure and the possibility of failure to penetrate the plastic film seal. Summary of the Invention

[0003] In view of the above-mentioned defects of the prior art, the task of the present invention is to provide an opening tube placement device for a plastic film sealed beverage cup, which provides a straw for the plastic film sealed beverage and stably achieves penetration of the plastic film seal.

[0004] The technical solution of the present invention is as follows: A straw opening device for a plastic film sealed beverage cup includes a straw conveying device, an upper guide tube, a lower guide tube, a top claw mechanism, a breaking mechanism and a shearing mechanism, wherein the upper guide tube is aligned with the lower guide tube in a vertical direction, the breaking mechanism includes a plurality of openable and closable breaking flaps, wherein the breaking flaps are located at the lower tube opening of the lower guide tube when closed and form a cone with the tip pointing downward, and the breaking flaps open the lower tube opening of the lower guide tube when opened, the shearing mechanism is arranged between the upper guide tube and the lower guide tube, the shearing mechanism includes at least two shearing blades, wherein the shearing blades shear the straw and block the lower tube opening of the upper guide tube when closed and open the lower tube opening of the upper guide tube when separated, the top claw mechanism includes a top claw, a first linkage mechanism and a second linkage mechanism, wherein when the top claw is pushed by abutment, the breaking flaps are driven to open via the first linkage mechanism and the shearing blades are driven to open via the second linkage mechanism, and the straw conveying device drives the straw to move downward in the upper guide tube and the lower guide tube when the shearing blades are opened.

[0005] Furthermore, the lower guide tube is provided with a lower fixing seat, the top claw is hinged to the lower fixing seat, the rupture flap is hinged to the lower tube opening of the lower guide tube, and the first linkage mechanism is a connecting rod mechanism connected between the top claw and the rupture flap.

[0006] Furthermore, the first linkage mechanism includes a first connecting rod, a sliding seat and a second connecting rod. The sliding seat is slidably mounted on the lower guide tube. The two ends of the first connecting rod are respectively hinged to the end of the top claw and the sliding seat. The two ends of the second connecting rod are respectively hinged to the top of the rupture valve and the sliding seat.

[0007] Furthermore, the breaching flap includes a body and a tail rod, and the body is triangular in shape.

[0008] Furthermore, the lower guide tube is provided with a lower fixed seat, the top claw is hinged to the lower fixed seat, the second linkage mechanism includes a first connecting rod, a sliding seat and a guide rod, the sliding seat is slidably sleeved on the lower guide tube, the two ends of the first connecting rod are respectively hinged to the end of the top claw and the sliding seat, the guide rod is fixedly connected to the sliding seat, and a first return spring is provided between the guide rod and the lower fixed seat. When the top claw moves, the guide rod moves up and down and drives the shear blade to open and close.

[0009] Furthermore, the upper guide tube is provided with an upper fixed seat, the shear blade is slidably connected to the upper fixed seat, a second reset spring is provided between the shear blade and the upper fixed seat, and a cam is provided on the guide rod, and when the guide rod moves upward, the shear blade is pushed to close by the cam.

[0010] Furthermore, the upper guide tube is provided with a driving window, the straw conveying device is located on the side of the driving window and is provided with a driving wheel, the driving wheel contacts the straws in the upper guide tube through the driving window, and the driving wheel drives the straws downward when it rotates.

[0011] Furthermore, the straw is a bellows, the driving wheel is a gear, and the gear is engaged with the surface texture of the bellows.

[0012] Furthermore, it includes a switch for controlling the start and stop of the straw delivery device, and the switch is triggered to control the start of the straw delivery device when the rupture valve is opened to the maximum.

[0013] Furthermore, three of the rupture flaps and three of the top claws are respectively provided and are arranged at equal intervals in the circumferential direction of the lower guide tube, and three of the shearing blades are provided and are arranged at equal intervals in the circumferential direction of the upper guide tube.

[0014] Compared with the prior art, the advantages of the technical solution of the present invention are: The plastic film seal of the beverage is broken by a rupture mechanism, and then a cut straw is inserted into the beverage. There is no need to use the straw to break the plastic film seal, and there is no risk of failure. Since the straw no longer needs to be broken, a continuous soft supply can be used, which is convenient for material preparation and has a simple conveying structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of the opening tube placement device of the plastic film sealed beverage cup according to an embodiment of the present invention.

[0016] Figure 2 This is a partial structural diagram of the upper guide tube, lower guide tube, shearing mechanism and guide rod connection position of the opening tube placement device of the plastic film sealed beverage cup according to an embodiment of the present invention.

[0017] Figure 3 This is a partial structural diagram of the connection between the upper guide tube and the shearing mechanism of the opening tube placement device of the plastic film sealed beverage cup according to an embodiment of the present invention.

[0018] Figure 4 This is a partial structural diagram of the lower guide tube, the breaking mechanism, and the top claw mechanism of the opening tube placement device of the plastic film sealed beverage cup according to an embodiment of the present invention.

[0019] Figure 5 This is a partial structural diagram of the connection between the lower guide tube and the rupture mechanism of the opening tube placement device of the plastic film sealed beverage cup according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the examples, but are not intended to limit the present invention.

[0021] Please combine Figure 1 As shown, the opening tube placement device for a plastic film sealed beverage cup according to an embodiment of the present invention includes a straw conveying device, an upper guide tube 1 , a lower guide tube 2 , a top claw mechanism 3 , a breaking mechanism 4 and a shearing mechanism 5 .

[0022] The opening tube placement device for the plastic film-sealed beverage cup is installed in a beverage vending machine. Therefore, a frame 6 is provided for the device, which is used to securely connect the upper guide tube 1 and the lower guide tube 2. The upper guide tube 1 and the lower guide tube 2 are arranged vertically and aligned vertically, with a distance between them. The upper guide tube 1 and the lower guide tube 2 are used to transport straws. The straws used in this embodiment are soft corrugated straws, which are wound and stored on a straw tray (not shown). The straws are inserted from top to bottom into the upper guide tube 1 and then into the lower guide tube 2.

[0023] To facilitate the control of the delivery of the straws, a lateral drive window 101 is provided on the upper guide tube 1, through which the straws partially within the upper guide tube 1 can be exposed. A drive motor 7 is fixedly mounted on the frame 6, lateral to the drive window 101. A drive wheel 8 is connected to the rotating shaft of the drive motor 7. The drive wheel 8 is a gear that engages with the straws through the drive window 101. The drive motor 7 and the gears constitute a straw delivery device. When the drive motor 7 is operating, the gears drive the straws downward. In other embodiments, the straws can also be ordinary smooth straight tubes, while the drive wheel 8 needs to use a rubber wheel with a large surface friction coefficient to maintain sufficient friction with the straws to prevent slipping, thereby driving the straws downward through friction.

[0024] A shearing mechanism 5 is provided between the upper guide tube 1 and the lower guide tube 2 for shearing straws, thereby segmenting the straws. Specifically, an upper fixed seat 9 is fixed at the lower tube opening of the upper guide tube 1. A shearing blade 501 is slidably mounted on the upper fixed seat 9 and can move radially along the upper guide tube 1. The shearing blade 501 has three blades, and the tip ends of the shearing blades 501 form a 120° sharp angle. When the three shearing blades 501 are brought together, they completely fit together to shear the straws, while also preventing the straws from moving downward within the upper guide tube 1. The three-blade structure makes it easier for the shearing blades 501 to pierce the straws for shearing, resulting in higher shearing efficiency. The tail end of the shearing blade 501 is L-shaped, and a second return spring 502 is provided between the tail end of the shearing blade 501 and the upper fixed seat. When the tip ends of the shearing blades 501 are brought together, the second return spring 502 is compressed. When the shear blade 501 is not forced to move inward, it will open outward under the elastic force of the second return spring 502, and the opened shear blade 501 also opens the lower tube opening of the upper guide tube 1. The linkage action of the shear blade 501 will be described later.

[0025] The lower guide tube 2 is provided with a lower fixed seat 10, which includes multiple disc structures in the axial direction and three mounting rods 1001 arranged radially in the lower guide tube 2. A rupture mechanism 4 is installed at the lower tube opening of the lower guide tube 2. Specifically, the rupture mechanism 4 includes three openable and closable rupture flaps 401 arranged at equal intervals in the circumferential direction of the lower guide tube 2. The rupture flap 401 includes a main body 401a and a tail rod 401b. The main body 401a is triangular in shape. When the rupture flap 401 is closed, it is located at the lower tube opening of the lower guide tube 2 and forms a cone with the tip pointing downward. When the rupture flap 401 is opened, the lower tube opening of the lower guide tube 2 is opened. The tail rod 401b of the rupture flap 401 is hinged to the lower tube opening of the lower guide tube 2, and the lower end of the tail rod 401b is fixed to the main body 401a of the rupture flap 401. When the top end of the tail rod 401b moves toward the lower guide tube 2, the body 401a of the rupture flap 401 will open outwards. Conversely, when the top end of the tail rod 401b moves away from the lower guide tube 2, the body 401a of the rupture flap 401 will move toward the middle and close.

[0026] The top claw mechanism 3 is designed to contact the film-sealed beverage cup 12 and, through relative movement with the film-sealed beverage cup 12, activate the aforementioned rupturing mechanism 4 and shearing mechanism 5. The top claw mechanism 3 comprises three top claws 301, a first linkage mechanism, and a second linkage mechanism. These three top claws 301 are hingedly connected to the lower end of the mounting rod 1001. The distal end of the top claw 301 (the section near the lower guide tube 2) activates the rupturing flap 401 via the first linkage mechanism and the shearing blade 501 via the second linkage mechanism.

[0027] The first linkage mechanism includes a first connecting rod 302, a sliding seat 303, and a second connecting rod 304. The sliding seat 303 is slidably mounted on the lower guide tube 2. The two ends of the first connecting rod 302 are respectively hinged to the end of the top claw 301 and the sliding seat 303. The two ends of the second connecting rod 304 are respectively hinged to the top of the tail rod 401b of the rupture flap 401 and the sliding seat 303. When the plastic film sealed beverage cup 12 moves from bottom to top, contacts the top claw 301 and further pushes the top claw 301 outward, the end of the top claw 301 swings downward, driving the sliding seat 303 downward, and further, through the second connecting rod 304, the top of the tail rod 401b of the rupture flap 401 moves closer to the lower guide tube 2.

[0028] The second linkage mechanism includes a first connecting rod 302 shared with the first linkage mechanism, a sliding seat 303, and a separately provided guide rod 305, wherein the lower end of the guide rod 305 is fixedly connected to the sliding seat 303. There are three guide rods 305, corresponding to the number of shear blades 501. The guide rods 305 are vertically arranged and extend upward through the lower fixed seat 10. A connecting plate 306 is fixedly connected to the upper portion of the guide rod 305. A first return spring 307 is sleeved on the guide rod 305, located between the connecting plate 306 and the lower fixed seat 10. The downward movement of the guide rod 305 compresses the first return spring 307. A cam 308 is provided at the top of each guide rod 305, which contacts the L-shaped tail end of the shear blade 501. When the guide rod 305 moves upward, the cam 308 pushes the shear blades 501 toward the center. When the guide rod 305 moves downward, the L-shaped tail end of the shear blade 501 abuts against the cam 308 under the action of the second return spring 502, causing the shear blades 501 to open outward. The upward and downward movement of the guide rod 305 is synchronized with the sliding seat 303. Therefore, when the rupture flap 401 of the rupture mechanism 4 opens, the shear blades 501 of the shear mechanism 5 also open. When the rupture flap 401 of the rupture mechanism 4 closes, the shear blades 501 of the shear mechanism 5 also close.

[0029] In this embodiment, a switch 11 for controlling the start and stop of the drive motor 7 is fixedly provided below the upper fixed seat. The switch 11 is triggered and controlled by the movement of the guide rod 305. Specifically, it is triggered when the guide rod 305 moves downward to open the rupture flap 401 to the maximum, so that the drive motor 7 starts working. When the guide rod 305 starts to move upward, the switch 11 is out of the trigger state, and the drive motor 7 stops working immediately.

[0030] The specific working process of the opening tube placement device of the plastic film sealed beverage cup of the present invention is as follows: In the initial state, a section of straw is left in the lower guide tube 2, and a continuous straw is provided in the upper guide tube 1, and the shear blades 501 are brought together to separate the upper and lower straws. The broken flaps 401 are brought together to prevent the straw in the lower guide tube 2 from falling.

[0031] A plastic film-sealed beverage cup 12 that requires opening for a straw is moved upward relative to the top claw 301. As the claw 301 expands, the conical, downward-pointing, tapered flaps 401 that converge together pierce the top film of the plastic film-sealed beverage cup 12. Simultaneously, the first linkage mechanism causes the flaps 401 to expand outward, creating an opening in the plastic film at the top of the beverage cup 12 that faces the lower guide tube 2. Furthermore, the second linkage mechanism causes the shear blades 501 to expand outward, opening the lower opening of the upper guide tube 1. When the flaps 401 are fully expanded (and the shear blades 501 are also fully extended), the drive motor 7 begins operating. The drive motor 7 causes the straw in the upper guide tube 1 to move downward and pushes the straw in the lower guide tube 2 toward the beverage cup 12. After the drive motor 7 operates for a period of time, allowing most of the straw in the lower guide tube 2 to enter the drinking cup 12 (with only a small section remaining at the opening of the lower guide tube 2), the drinking cup 12 moves downward relative to the top claw 301. At this point, the switch 11 is released, and the drive motor 7 stops operating. As the drinking cup 12 moves further downward, the straw already inserted into the drinking cup 12 escapes from the lower guide tube 2 before the rupture flap 401 fully closes. As the rupture flap 401 closes, the guide rod 305 gradually moves upward, and the cam 308 pushes the shear blades 501 together. Once the rupture flap 401 is fully closed, the shear blades 501 also fully close, severing the straw. This leaves a section of straw in the lower guide tube 2, blocked by the rupture flap 401 and preventing it from falling out. The lower guide tube 2 returns to its initial state, ready for the next straw to be inserted into the opening of the drinking cup 12.

[0032] From the above structural description, it is easy to understand that the opening and pipe placement device for plastic film sealed beverage cups can be used in conjunction with different types of beverage vending devices. For example, in a beverage vending device equipped with a beverage cup lifting and conveying mechanism, the opening and pipe placement device for plastic film sealed beverage cups can be fixedly installed, and the beverage cup 12 can be lifted and lowered by the beverage cup lifting and conveying mechanism to complete the opening and pipe placement. In a beverage vending device without a beverage cup lifting and conveying mechanism, the opening and pipe placement device for plastic film sealed beverage cups can be installed on a lifting mechanism, and the beverage cup 12 is supported by a support plate to achieve lifting and lowering movement relative to the beverage cup 12 to complete the opening and pipe placement. The plastic film sealed beverage cup opening and pipe placement device of the present invention uses a mechanical linkage device for a simple motion control system and is easy to implement.

Claims

1. A tube placement device for an opening of a plastic film sealed beverage cup, characterized in that: The cam is adapted to move the upper and lower guide tubes downwards and to move the lower end of the cam into engagement with the lower guide tube, the cam being adapted to move the upper and lower guide tubes downwards.

2. The opening tube placement device for a plastic film sealed beverage cup according to claim 1, characterized in that: The lower guide tube is provided with a lower fixing seat, the top claw is hinged to the lower fixing seat, the rupture flap is hinged to the lower tube opening of the lower guide tube, and the first linkage mechanism is a connecting rod mechanism connected between the top claw and the rupture flap.

3. The opening tube placement device for a plastic film sealed beverage cup according to claim 2, characterized in that: The first linkage mechanism includes a first connecting rod, a sliding seat and a second connecting rod. The sliding seat is slidably mounted on the lower guide tube. The two ends of the first connecting rod are respectively hinged to the end of the top claw and the sliding seat. The two ends of the second connecting rod are respectively hinged to the top of the rupture valve and the sliding seat.

4. The opening tube placement device for a plastic film sealed beverage cup according to any one of claims 1 to 3, characterized in that: The rupture flap comprises a body and a tail rod, and the body is triangular in shape.

5. The opening tube placement device for a plastic film sealed beverage cup according to claim 1, characterized in that: The lower guide tube is provided with a lower fixed seat, the top claw is hinged to the lower fixed seat, the second linkage mechanism includes a first connecting rod, a sliding seat and a guide rod, the sliding seat is slidably sleeved on the lower guide tube, the two ends of the first connecting rod are respectively hinged to the end of the top claw and the sliding seat, the guide rod is fixedly connected to the sliding seat, and a first return spring is provided between the guide rod and the lower fixed seat. When the top claw moves, the guide rod moves up and down and drives the shear blade to open and close.

6. The opening tube placement device for a plastic film sealed beverage cup according to claim 5, characterized in that: The upper guide tube is provided with an upper fixed seat, the shearing blade is slidably connected to the upper fixed seat, a second return spring is provided between the shearing blade and the upper fixed seat, and a cam is provided on the guide rod. When the guide rod moves upward, the shearing blade is pushed to close by the cam.

7. The opening tube placement device for a plastic film sealed beverage cup according to claim 1, characterized in that: The upper guide tube is provided with a driving window, and the straw conveying device is located on the side of the driving window and is provided with a driving wheel. The driving wheel contacts the straws in the upper guide tube through the driving window, and when the driving wheel rotates, the straws are driven downward.

8. The opening tube placement device for a plastic film sealed beverage cup according to claim 7, characterized in that: The straw is a bellows, the driving wheel is a gear, and the gear is engaged with the surface texture of the bellows.

9. The opening tube placement device for a plastic film sealed beverage cup according to claim 1, characterized in that: A switch is included for controlling the start and stop of the straw delivery device. When the rupture valve is opened to the maximum, the switch is triggered to control the start of the straw delivery device.

10. The opening tube placement device for a plastic film sealed beverage cup according to claim 1, characterized in that: The rupture flaps and the top claws are respectively provided with three and are arranged at equal intervals in the circumference of the lower guide tube, and the shearing blades are provided with three and are arranged at equal intervals in the circumference of the upper guide tube.

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