Shipping buffer device of automatic vending machine and automatic vending machine

Abstract

The present invention relates to a delivery buffer device of an automatic vending machine and the automatic vending machine, the delivery buffer device comprises a delivery lifting platform, a sliding shaft rod is arranged above the delivery lifting platform, and a conversion twist box which can slide linearly along the sliding shaft rod is arranged on the sliding shaft rod towards a side of a product display rack in the vending machine, the conversion twist box is provided with a product receiving groove, the top of the product receiving groove is open, a product entrance and a product exit which are connected to the product receiving groove are opened on the side of the conversion twist box, the product exit is arranged at 90 degrees with the product entrance, and the product entrance faces the product display rack, the back side of the conversion twist box is connected with a linear sliding mechanism on the sliding shaft rod through a twist box rotating shaft, and the twist box rotating shaft is arranged on a side which deviates from the product receiving groove and is opposite to the product exit; the automatic vending machine proposed by the present invention adopts the above-mentioned delivery buffer device, which can change the posture of the product after delivery, thereby solving the problem that the buffered delivery of the product is easy to tip over and fall when the product is placed vertically.

Description

Technical Field

[0001] The invention belongs to the field of automatic vending machines, and in particular relates to a delivery buffer device of an automatic vending machine and the automatic vending machine. Background Art

[0002] At present, most vending machines use a drop-down delivery method, where the goods fall from the display shelves in the cabinet to the pickup port below. However, this method is prone to causing bumps and damage to the goods, and for fragile goods packaged in glass, ceramics, etc., this method cannot be used for delivery. Therefore, in order to enable the sale of fragile goods in vending machines, it is also proposed to use a buffered delivery device. The goods to be shipped are first buffered by the delivery device and then fall into the pickup port, which can reduce the bumps and damages of the goods. For example, a lifting delivery platform is used as a buffer in the delivery process. After the goods to be shipped fall on the lifting delivery platform, the lifting delivery platform falls to the pickup port to complete the delivery. In the process of the goods falling on the lifting delivery platform, the drop is small, so it can play a buffering role and avoid damage to the goods caused by a large drop.

[0003] Although the lifting delivery platform can play a role in buffering the delivery to a certain extent, it still has obvious shortcomings. At present, most vending machines adopt the form of placing goods vertically. When the goods need to be delivered, they fall on the lifting delivery platform. They are unstable and prone to tipping over, and the tipping direction is uncertain. Therefore, there is a risk of falling from the lifting delivery platform. In addition, if a flexible buffer layer is set on the delivery platform, the goods will be more unstable. Summary of the invention

[0004] The object of the present invention is to provide a delivery buffer device for a vending machine and a vending machine, wherein the delivery buffer device can change the posture of goods after delivery so that the goods can lie flat on the delivery table, thereby solving the problem that the goods are prone to tipping over and falling when placed upright during delivery.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a delivery buffer device of an automatic vending machine, comprising a delivery lifting platform, a buffer layer is arranged on the upper surface of the delivery lifting platform, a sliding shaft is arranged above the delivery lifting platform, and a conversion twist box which can slide linearly along the sliding shaft is arranged on the sliding shaft towards the side of the product display rack in the vending machine, the conversion twist box is provided with a product receiving groove for receiving the product, the top of the product receiving groove is open, and the side of the conversion twist box is provided with a connecting groove for connecting the product receiving groove to the product receiving groove. The goods entrance and the goods exit of the receiving slot are arranged at 90 degrees to the goods entrance, and the goods entrance is opposite to the goods display rack. The back of the conversion twist box is connected with the linear sliding mechanism on the sliding shaft through the twist box shaft, and the twist box shaft is arranged on the side deviating from the goods receiving slot and opposite to the goods exit, so that after the goods fall into the goods receiving slot through the goods entrance, the conversion twist box can be driven by its own weight to rotate around the twist box shaft, and then the goods fall to the delivery lifting platform below through the goods outlet.

[0006] As an option, the torsion box shaft includes a fixed section and a rotating section that are rotatably connected, the fixed section is connected to the linear sliding mechanism on the sliding shaft, the rotating section is connected to the conversion torsion box, and a reset spring is arranged between the fixed section and the rotating section for resetting the rotating section.

[0007] Preferably, a buffer barrier that can rotate outward is also provided at the goods outlet of the conversion twist box, both ends of the buffer barrier are rotatably connected to the conversion twist box, and a spring sheet for providing rebound force to the buffer barrier is provided at one or both ends of the buffer barrier.

[0008] Preferably, the linear sliding mechanism is arranged in the sliding shaft, and a sliding groove for guiding the linear movement of the torsion box shaft is arranged on the rod body of the sliding shaft.

[0009] Furthermore, the linear sliding mechanism is a screw mechanism, and a connecting block capable of being exposed from the slide groove is provided on the nut of the screw mechanism.

[0010] Furthermore, both ends of the sliding shaft are fixed to the shipping lifting platform through brackets, and a threading hole is provided at the bottom of one of the brackets, and the wires of the linear sliding mechanism are connected to the power supply in the shipping lifting platform through the threading hole.

[0011] Preferably, the upper surface of the delivery lifting platform is a concave arc surface.

[0012] Furthermore, the sliding shaft is located directly above the lowest point of the arc surface.

[0013] The present invention further provides an automatic vending machine, comprising a cabinet, a product display rack arranged inside the cabinet, a lifting mechanism, and a delivery device arranged on the lifting mechanism, wherein the delivery device adopts the delivery buffer device described above.

[0014] The beneficial effect of the present invention is that the conversion twist box structure adopted by the present invention can automatically rotate under the weight of the goods after receiving the goods, turning the upright goods into a flat position, and then the goods fall onto the delivery lift, thereby avoiding the situation where the goods are unstable, tipped over, or even fall due to falling directly vertically onto the delivery lift. Through the design of the conversion twist box, the goods first enter the conversion twist box to complete a buffer, and then fall onto the delivery lift to complete a second buffer, so that fragile goods can be better buffered, the range of goods sold by the vending machine is expanded, and the applicability of the vending machine is improved.

[0015] The goods outlet of the conversion twist box of the present invention is provided with a buffer block which can rebound automatically, so that when the goods fall from the conversion twist box to the delivery lifting platform, they are buffered by the buffer block, thereby reducing the impact force with the lifting platform.

[0016] A linear sliding mechanism is arranged inside the sliding shaft rod of the present invention, which can drive the conversion twist box to slide horizontally and cooperate with the lifting and lowering of the shipping lifting platform. The conversion twist box can be moved in front of the goods to be shipped and accurately positioned; the linear sliding mechanism is powered by a power supply arranged in the shipping lifting platform, which can avoid the exposure of the wires and keep the structure neat and beautiful.

[0017] The upper surface of the shipping lift platform of the present invention is designed to be a concave arc surface, and the sliding shaft rod is located directly above the lowest point of the arc surface, which can ensure that the goods can roll to the lowest point of the arc surface after falling on the shipping lift platform to prevent the goods from falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the installation of the present invention on the lifting mechanism;

[0019] Figure 2 It is a front view of the conversion torsion box of the present invention installed on the sliding shaft;

[0020] Figure 3 A top view of the conversion torsion box of the present invention installed on the sliding shaft;

[0021] Figure 4 A first perspective view of the conversion twist box of the present invention;

[0022] Figure 5 A second viewing angle view of the conversion twist box of the present invention;

[0023] Figure 6 This is a schematic diagram of the principle of the rotation of the conversion torsion box of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the delivery lifting platform in the present invention;

[0025] Figure 8 It is a structural schematic diagram of the automatic vending machine of the present invention;

[0026] Fig. 9 It is a schematic diagram of the transmission structure of the lifting mechanism of the present invention;

[0027] Markings in the figure: 1. Shipping lifting platform, 101. Buffer layer, 102. Gear set, 103. Trapezoidal tenon, 2. Sliding shaft, 201. Slide slot, 3. Conversion torsion box, 301. Goods receiving slot, 302. Goods entrance, 303. Goods exit, 304. Buffer barrier, 305. Twist box shaft, 305-1. Bushing, 305-2. Shaft, 306. Spring sheet, 4. Lifting mechanism, 401. Vertical track slot, 402. Transmission belt device, 402-1. Double wheel, 402-2. Transmission belt, 403. Transmission gear shaft, 404. Positioning slot, 5. Bracket, 501. Threading hole, 6. Cabinet, 601. Left cabinet door, 602. Right cabinet door, 7. Goods display rack. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the invention in any way.

[0029] Example 1: Figure 1-6As shown, a delivery buffer device of an automatic vending machine is used for delivery of goods from the automatic vending machine, comprising a delivery lifting platform 1 arranged in a cabinet of the automatic vending machine, wherein a buffer layer 101 composed of a buffer material is arranged on the upper surface of the delivery lifting platform 1; a sliding shaft rod 2 is arranged above the delivery lifting platform 1, wherein the length of the sliding shaft rod 2 is less than the length of the delivery lifting platform 1, and the interior of the sliding shaft rod 2 is a hollow structure, so as to be provided with a linear sliding mechanism, and a slide groove 201 extending along the length direction of the shaft rod is arranged on the side of the sliding shaft rod 2 facing the goods display rack; the delivery buffer device also comprises a conversion twist box 3, wherein the conversion twist box 3 is provided with a goods receiving groove 301 with an open top, wherein the diameter of the goods receiving groove 301 is larger than the diameter of the goods on the goods display rack, and the groove bottom of the goods receiving groove 301 is also provided with a buffer material to reduce the impact force of the goods falling; a sliding shaft rod 2 is arranged on the side of the conversion twist box 3 The cargo entrance 302 and cargo exit 303 are connected to the cargo receiving groove 301, and the cargo exit 303 is arranged at 90 degrees with the cargo entrance 302, and the cargo entrance 302 is directly opposite to the cargo display rack. The opening widths of the cargo entrance 302 and cargo exit 303 are larger than the diameter of the cargo, so as to facilitate the entry and exit of the cargo. The cargo exit 303 and the cargo entrance 302 extend upward from the bottom of the groove to the open portion at the top of the cargo receiving groove 301, so that the cargo entrance 302 and cargo exit 303 are both connected with the top opening, so as to facilitate the entry and exit of the cargo receiving groove 301 for the cargo whose length is larger than the conversion twist box 3. The back side of the conversion twist box 3 is connected with the linear sliding mechanism in the sliding shaft 2 through the twist box rotating shaft 305, and the linear sliding mechanism drives the conversion twist box 3 to move linearly along the slide groove 201, so that the conversion twist box 3 arrives in front of the cargo to be shipped and waits for the cargo to fall. Figure 3 , 6 As shown, the twist box shaft 305 is arranged on a side deviated from the goods receiving groove 301 and opposite to the goods outlet 303, so that the center of gravity of the conversion twist box 3 is deviated from the twist box shaft 305, so that after the goods fall into the goods receiving groove 301 through the goods entrance 302, the conversion twist box 3 can be driven by its own weight to rotate around the twist box shaft 305 as the center, and the upright posture of the goods can be converted into a horizontal lying posture, and then the lying goods will fall through the goods outlet 303 to the delivery lifting platform 1 below.

[0030] The torsion box shaft 305 includes a fixed section and a rotating section, the fixed section is connected to the linear sliding mechanism on the sliding shaft 2, and the rotating section is connected to the conversion torsion box 3. A reset spring for resetting the rotating section is arranged between the fixed section and the rotating section. At the same time, the elastic force of the reset spring can also prevent the conversion torsion box 3 from rotating automatically when it is unloaded. Only after the goods enter the conversion torsion box 3 can the weight of the goods overcome the elastic force of the reset spring. The specific structure may include the following forms.

[0031] As an option, the torsion box shaft 305 is configured as a refueling handlebar of an electric vehicle to achieve the functions of rotation and resetting. Figure 5As shown, the fixed section is a sleeve 305-1, the rotating section is a shaft 305-2, one end of the sleeve 305-1 is connected to the linear sliding mechanism, and the other end is sleeved on the end of the shaft 305-2, the reset spring is sleeved on the shaft 305-2 and is located in the gap between the shaft 305-2 and the inner wall of the sleeve 305-1; the shaft 305-2 is connected to the conversion torsion box 3. An axial limiting mechanism is also provided between the shaft 305-2 and the sleeve 305-1, such as an elastic claw is provided at the shaft end, a limiting ring is provided on the inner wall of the sleeve, and the elastic claw is clamped on the limiting ring to achieve axial limiting of the shaft.

[0032] It is understandable that the positions of the shaft 305 - 2 and the shaft sleeve 305 - 1 may also be swapped, and the above-mentioned rotation and resetting functions may also be achieved.

[0033] As another option, the fixed section and the rotating section are both a shaft, the reset spring is sleeved on the outside of the connection position of the two shafts, and the two ends of the spring are respectively connected to the two shafts, which can also realize the rotation and reset of the conversion torsion box.

[0034] In specific implementation, the implementer can select a suitable structural form according to his own situation, and is not limited to the above structure. The conventional technical means can be used to realize the rotation and resetting of the conversion torsion box.

[0035] In order to further buffer the process of goods falling from the conversion box to the shipping lift, such as Figure 3 , 4 As shown, a buffering block 304 is also provided at the cargo outlet 303 of the conversion twist box 3. The width of the buffering block 304 is smaller than the width of the cargo outlet 303. Both ends of the buffering block 304 are provided with protrusions, which are rotatably connected to the upper and lower ends of one side of the cargo outlet 303, and a spring sheet 306 is installed at one end of the buffering block 304. After the cargo changes its posture through the rotation of the conversion twist box 3, due to the obstruction of the buffering block 304, the cargo will not fall from the cargo outlet 303 immediately, but the buffering block 304 needs to be pushed outward by the deadweight of the cargo to open the cargo outlet 303. At this time, the cargo slides along the buffering block 304 and falls onto the cargo lifting platform 1. Then, under the action of the rebound force of the spring sheet 306, the buffering block 304 rebounds and resets.

[0036] The linear sliding mechanism in the sliding shaft 2 can adopt various commonly used forms, such as a screw mechanism, a synchronous belt mechanism, an electric push rod, etc. This embodiment adopts a screw mechanism, and a connecting block extending out of the slide slot 201 is fixedly arranged on the screw nut of the screw mechanism, and is connected to the fixed section of the torsion box shaft 305. The screw of the screw mechanism is rotatably supported in the cavity of the sliding shaft 2, and a motor for driving the screw to rotate is arranged at one end of the cavity; Figure 2As shown, the bracket 5 for supporting the sliding shaft 2 is connected to the shipping lifting platform 1, wherein one of the brackets 5 is a hollow structure and is provided with a threading hole 501, and the power cord of the motor is connected to the power supply arranged in the shipping lifting platform 1 through the cavity of the bracket 5 and the threading hole 501.

[0037] The present invention also adjusts the structure of the delivery lifting platform 1. After the adjustment, Figure 7 As shown, the upper surface of the shipping lifting platform 1 is a concave arc surface. After the goods fall, they automatically roll to the lowest point of the arc surface to prevent the goods from falling out of the lifting platform during the lifting process; further, the sliding shaft is located directly above the lowest point of the arc surface, so that the position of the arc surface directly below the conversion twist box is higher than the lowest point of the arc surface, and the goods falling from the conversion twist box can roll directly to the lowest point of the arc surface more smoothly.

[0038] Example 2: Figure 8 As shown, the vending machine proposed in the present invention includes a cabinet 6, a product display rack 7 arranged inside the cabinet 6, a lifting mechanism 4 and a shipping buffer device as described in Example 1, the lifting mechanism 4 is arranged in front of the product display rack 7, the shipping buffer device is arranged on the lifting mechanism 4, and the lifting mechanism 4 drives the shipping buffer device to rise and fall vertically.

[0039] Continue to refer Figure 1 As shown, the lifting mechanism 4 includes a track frame and a lifting transmission device. The track frame includes four vertical track grooves 401. Each vertical track groove 401 is provided with a lifting transmission device. In this embodiment, a transmission belt device 402 is used as the lifting transmission device. The connecting parts at the four corners of the side of the shipping lifting platform 1 extend into the track groove from the openings on the side of the vertical track groove 401, and are connected to the transmission belt of each set of transmission belt device 402. As the transmission belt rotates, the shipping lifting platform 1 is driven to rise and fall vertically along the vertical track groove 401.

[0040] Fig. 9 A structural form of a transmission belt device is provided, wherein the transmission belt device 402 includes two transmission belts 402-2 which are arranged relatively and at intervals in a vertical track groove 401, the transmission belt 402-2 is tensioned on the transmission belt pulleys at the upper and lower ends of the vertical track groove 401, and the transmission belt is meshed with the transmission belt pulley; among the four vertical track grooves 401, only the transmission belt devices 402 in the front two vertical track grooves 401 are connected to the driving mechanism; a driving bevel gear is installed at the lower end of a driving gear shaft 403 of the driving mechanism arranged on the top of the cabinet, and a transmission belt pulley on one side of the upper end of the vertical track groove 401 is arranged as a double wheel 402-1, and the double wheel 402-1 includes a transmission belt pulley meshed with the transmission belt 402-2 and a transmission bevel gear meshed with the driving bevel gear, and the power mechanism arranged on the top of the cabinet transmits power to the double wheel 402-1 through the driving gear shaft 403, thereby driving the transmission belt 402-2 to rotate.

[0041] Gear sets 102 are provided at the four corners of the shipping lifting platform 1, and each gear set 102 includes two gears of the same model, which are used to mesh with the same side of the two transmission belts 402-2 in the corresponding vertical track groove 401, so as to realize the shipping lifting platform 1 to move up and down with the transmission belt 402-2; in order to further ensure the smooth up and down movement of the shipping lifting platform 1, a trapezoidal tenon 103 is provided at the end of the mounting plate on the shipping lifting platform 1 for mounting the gear set 102, and a positioning groove 404 with a trapezoidal cross-section is correspondingly provided on the inner wall of the vertical track groove 401, and the trapezoidal tenon 103 is slidably arranged in the positioning groove 404, which can prevent the shipping lifting platform 1 from shaking back and forth and left and right.

[0042] During specific implementation, a suitable lifting mechanism, such as a screw mechanism, a wire rope mechanism, etc., may also be selected according to actual conditions.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Those skilled in the art should understand that the specific implementation modes of the present invention may be modified or replaced by equivalents with reference to the above embodiments. Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention are within the scope of protection of the pending claims.

Claims

1. A delivery buffer device for a vending machine, comprising a delivery lifting platform, the upper surface of which is provided with a buffer layer, characterized in that: The top of the delivery lifting platform is provided with a sliding shaft, and a conversion twist box which can slide linearly along the sliding shaft is arranged on the sliding shaft towards one side of the product display rack for vertically placing products in the vending machine, the conversion twist box is provided with a product receiving slot for receiving products, the top of the product receiving slot is open, and the side of the conversion twist box is provided with a product entrance and a product exit connected to the product receiving slot, the product exit and the product entrance are arranged at 90 degrees, and the product entrance faces the product display rack, the back side of the conversion twist box is connected with the linear sliding mechanism on the sliding shaft through a twist box rotating shaft, and the twist box rotating shaft is arranged on a side deviating from the product receiving slot and opposite to the product exit, so that after the products fall into the product receiving slot through the product entrance, the conversion twist box can be driven by its own weight to rotate around the twist box rotating shaft as the center, so as to convert the upright posture of the products into a horizontal lying posture, and then the products fall to the delivery lifting platform below through the product exit; A buffer block that can rotate outward is also provided at the goods outlet of the conversion torsion box, and both ends of the buffer block are rotatably connected to the conversion torsion box, and a spring sheet for providing a rebound force to the buffer block is provided at one or both ends of the buffer block; The torsion box shaft includes a fixed section and a rotating section that are rotatably connected. The fixed section is connected to a linear sliding mechanism on a sliding shaft, and the rotating section is connected to a conversion torsion box. A reset spring for resetting the rotating section is provided between the fixed section and the rotating section.

2. The delivery buffer device of a vending machine according to claim 1, characterized in that: The linear sliding mechanism is arranged in the sliding shaft rod, and a sliding groove for guiding the linear movement of the torsion box shaft is arranged on the rod body of the sliding shaft rod.

3. The delivery buffer device of a vending machine according to claim 2, characterized in that: The linear sliding mechanism is a screw mechanism, and a connecting block that can be exposed from the sliding groove is arranged on the nut of the screw mechanism.

4. The delivery buffer device of a vending machine according to claim 2, characterized in that: The two ends of the sliding shaft are fixed to the delivery lifting platform through brackets, and a threading hole is provided at the bottom of one of the brackets, and the wires of the linear sliding mechanism are connected to the power supply in the delivery lifting platform through the threading hole.

5. The delivery buffer device of a vending machine according to claim 1, characterized in that: The upper surface of the delivery lifting platform is a concave arc surface.

6. The delivery buffer device of a vending machine according to claim 5, characterized in that: The sliding shaft is located just above the lowest point of the arc surface.

7. An automatic vending machine, comprising a cabinet, a product display rack arranged inside the cabinet, a lifting mechanism, and a delivery device arranged on the lifting mechanism, characterized in that: The shipping device adopts the shipping buffer device as described in any one of claims 1-6.

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