CN103679947A - Goods driving structure and vending machine - Google Patents

Abstract

A cargo driving structure, including a motor and a spring. The spring includes several helical coils. The cargo is placed between each adjacent two helical coils. When the motor rotates, it drives the spring to rotate and then drives the cargo. The cargo drives The structure also includes an angle adjustment device, one end of the spring is fixed on the angle adjustment device, and the angle adjustment device is used to be fixed on the rotating shaft of the motor at different angles. The invention also discloses an automatic vending machine using the goods driving structure.

Description

Goods drive structure and vending machine

technical field

The present invention relates to an automatic vending machine, in particular to a cargo driving structure used in the cargo lane of the automatic vending machine and an automatic vending machine using the cargo driving structure.

Background technique

Most of the current vending machines adopt the design of the spring rotary propulsion type cargo channel. In this design, one end of the cargo channel spring is rigidly connected with the motor shaft, and the goods are placed between two adjacent spiral coils of the cargo channel spring. Whenever the motor Rotate at a certain angle (such as 360 degrees), and the cargo channel spring will then push the goods forward for a certain distance (such as a pitch of the cargo channel spring), and then push the goods to the outlet of the vending machine. However, after repeated deliveries, the cumulative rotation error of the motor will gradually increase, resulting in the goods not being delivered to the delivery port accurately (for example, the center of gravity of the goods is not sent out of the delivery port, and the goods cannot fall from the delivery port) . In view of such a situation, the current solution is to require the staff to reset the initial phase of the motor, and this process is very complicated and difficult to adjust accurately.

Contents of the invention

In view of the above, it is necessary to provide a goods driving structure used in the goods aisle of the vending machine and an automatic vending machine using the goods driving structure, which can adjust the angle of the goods aisle spring conveniently and accurately.

A cargo driving structure, including a motor and a spring. The spring includes several helical coils. The cargo is placed between each adjacent two helical coils. When the motor rotates, it drives the spring to rotate and then drives the cargo. The cargo drives The structure also includes an angle adjustment device, one end of the spring is fixed on the angle adjustment device, and the angle adjustment device is used to be fixed on the rotating shaft of the motor at different angles.

Preferably, the angle adjusting device is provided with a receiving hole, and the angle adjusting device is sleeved on the rotating shaft of the motor through the receiving hole, and the angle adjusting device can move between the first position and the rotating shaft of the motor along the rotating shaft of the motor. Sliding between the second positions, when the angle adjusting device is in the second position, the angle adjusting device can rotate around the shaft of the motor, when the angle adjusting device is in the first position, the angle The adjusting device is fixed on the rotating shaft of the motor.

Preferably, the rotating shaft of the motor is provided with a plurality of first latches, and the angle adjustment device is provided with second latches corresponding to the first latches, when the angle adjustment device is in the first When in the position, the first locking tooth and the second locking tooth are engaged together, so that the angle adjusting device is fixed on the rotating shaft of the motor.

Preferably, the second latch surrounds the opening of the receiving hole.

Preferably, the cargo driving structure further includes a limiter, and the limiter is fixed to the end of the rotating shaft of the motor for preventing the angle adjusting device from detaching from the rotating shaft of the motor.

Preferably, the limiting member is provided with a fixing hole, and the limiting member is sleeved and fixed on the end of the rotating shaft of the motor through the fixing hole.

Preferably, the cargo driving structure further includes an elastic member sleeved on the rotating shaft of the motor, the elastic member is located between the angle adjustment device and the limiting member, and the two ends of the elastic member are respectively Abut against the angle adjusting device and the limiting member.

Preferably, the angle adjusting device is provided with two through holes, and the tip of one end of the spring is inserted and accommodated in the two through holes, so that the one end of the spring is fixed on the angle adjusting device.

Preferably, said tip is offset from the central axis of said angle adjustment means.

An automatic vending machine, comprising a cargo channel housing, a plurality of cargo channels are arranged in the cargo channel housing, a partition plate is provided between every two adjacent cargo channels, and any one of the above-mentioned cargo channels is provided in each cargo channel. Cargo drive structure.

Compared with the prior art, in the above cargo driving structure, when the rotation error of the motor is large enough to cause the cargo to be unable to be accurately conveyed, the initial angle of the spring can be set by adjusting the angle of the angle adjustment device. Angle, so as to correct the rotation error of the motor and ensure the accuracy of the delivery of the goods by the goods driving structure, which has the advantages of simple structure and convenient operation.

Description of drawings

Fig. 1 is a perspective view of a cargo driving structure in a preferred embodiment of the present invention applied to a vending machine aisle housing.

Fig. 2 is an exploded perspective view of the cargo driving structure in Fig. 1 .

Fig. 3 is an exploded perspective view of another viewing angle of the cargo driving structure in Fig. 1 .

Fig. 4 is a three-dimensional assembled view of the cargo driving structure in Fig. 2 .

Fig. 5 is a three-dimensional assembly view of another perspective of the cargo driving structure in Fig. 2 .

Description of main component symbols

cargo channel shell 10 Cargo lane 101 Partition plate 102 cargo drive structure 20 cargo spring twenty one tip 211 motor twenty two shaft 221 first shaft 222 second shaft 223 first tooth 224 Angle adjustment device twenty three annular side wall 231 bottom wall 232 containment hole 233 second latch 234 through hole 235 isolation board 236 Limiting parts twenty four Fixing hole 241 Elastic 25

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

Detailed ways

Please refer to Fig. 1, in a preferred embodiment of the present invention, an automatic vending machine includes a cargo lane housing 10, in which cargo lane housing 10 is provided with several cargo lanes 101, every adjacent two cargo lanes 101 A partition 102 is provided between them, and a cargo driving structure 20 is provided in each cargo lane 101 . In order to illustrate this embodiment clearly and concisely, only the cargo driving structure 20 in one of the cargo lanes 101 is selected for detailed description here, and only one of the cargo lanes 101 shows the cargo driving structure 20 in FIG. 1 . Those skilled in the art should understand that the cargo driving structure 20 can also be arranged in other cargo lanes 101 .

Please refer to FIG. 2 to FIG. 5 , the cargo driving structure 20 includes a cargo path spring 21 , a motor 22 , an angle adjusting device 23 , a limiting member 24 and an elastic member 25 .

The cargo path spring 21 includes several helical coils, and a cargo can be placed between every two adjacent helical coils, so that when the cargo channel spring 21 rotates, the cargo sandwiched between the two helical coils can be driven to Move in the corresponding cargo lane 101. In other embodiments, the cargo driving structure 20 may also include a cargo support plate (not shown in the figure), the cargo track spring surrounds the cargo support plate, and the cargo can be placed on the cargo support plate. superior.

The motor 22 includes a rotating shaft 221, and the rotating shaft 221 includes a first rotating shaft portion 222 and a second rotating shaft portion 223, both of the first rotating shaft portion 222 and the second rotating shaft portion 223 are substantially cylindrical, so The diameter of the second shaft part 223 is larger than the diameter of the first shaft part 222 , and the first shaft part 222 extends vertically from the outer bottom surface of the second shaft part 223 .

The angle adjusting device 23 is substantially cylindrical and includes an annular side wall 231 and a bottom wall 232 . A receiving hole 233 is defined in the center of the bottom wall 232 , and the angle adjusting device 23 is sleeved on the first rotating shaft portion 222 of the rotating shaft 221 through the receiving hole 233 . The diameter of the receiving hole 233 is larger than the diameter of the first shaft portion 222 and smaller than the diameter of the second shaft portion 223 . In this way, after the angle adjusting device 23 is sleeved on the first shaft portion 222 through the receiving hole 233 , it can slide axially relative to the first shaft portion 222 .

A plurality of first locking teeth 224 protrude from the outer bottom surface of the second rotating shaft portion 223 , and a plurality of first locking teeth 224 protrude from the outer surface of the bottom wall 232 of the angle adjustment device 23 . Corresponding to the second locking teeth 234 , the plurality of second locking teeth 234 surround the opening of the receiving hole 233 . When the angle adjusting device 23 slides toward the second shaft portion 223 along the first shaft portion 222 until the second locking tooth 234 meshes with the first locking tooth 224 , in this way, the The angle adjusting device 23 is fixed on the rotating shaft 221 of the motor 22 and can rotate together with the rotating shaft 221 of the motor 22 .

The limiting member 24 is substantially in the shape of a C-shaped ring, and a fixing hole 241 is defined at the center thereof. The limiting member 24 is sleeved and fixed on the end of the first shaft portion 222 of the motor 22 through the fixing hole 241 . The diameter of the fixing hole 241 is roughly equivalent to the diameter of the first shaft part 222 , and the fixing hole 241 can be sleeved and fixed on the first shaft part 222 by means of interference fit. When the angle adjusting device 23 slides along the first rotating shaft part 222 , the limiting member 24 can prevent the angle adjusting device 23 from moving excessively and detaching from the first rotating shaft part 222 .

The elastic member 25 is sleeved on the first shaft portion 222 of the motor 22 and located between the bottom wall 232 of the angle adjusting device 23 and the limiting member 24 . The two ends of the elastic member 25 abut against the bottom wall 232 and the limiting member 24 respectively, so that the elastic force exerted by the elastic member 25 on the bottom wall 232 drives the angle adjustment device 23 to Several second locking teeth 234 of the motor 22 are tightly meshed with the plurality of first locking teeth 224 .

When an external force is applied to the angle adjusting device 23 so that the angle adjusting device 23 is away from the second shaft part 223, the second locking tooth 234 is separated from the first locking tooth 224, and the elastic member 25 is compressed and deformed under the pressing action of the bottom wall 232 of the angle adjustment device 23 and the stopper 24. At this time, the angle adjustment device 23 can rotate relative to its own central axis. When this is applied to the When the external force on the angle adjusting device 23 is cancelled, the elastic member 25 elastically returns to generate a thrust to the bottom wall 232 of the angle adjusting device 23, so that the angle adjusting device 23 is close to the bottom wall 232 of the motor 22. The second rotating shaft portion 223 slides until the second latching tooth 234 and the first latching tooth 224 engage together again. In one embodiment, the elastic member 25 is a pre-compressed spring.

The annular side wall 231 of the angle adjusting device 23 is provided with two through holes 235, and the tip 211 of the fixed end of the cargo path spring 21 is penetrated and accommodated in the two through holes 235, so that the cargo path spring The fixed end of 21 is fixed on the angle adjusting device 23 .

In one embodiment, the two through holes 235 are opened on a section of the inferior arc of the cross-sectional circle of the annular side wall 231, that is, the distance between the two through holes 235 is smaller than that of the annular side wall. The diameter of the cross-sectional circle of 231, like this, when the distal end 211 of described cargo path spring 21 passes through the two through holes 235, it will not pass through the center of the cross-sectional circle of the annular side wall 231, but deviates from The center of the cross-sectional circle of the annular sidewall 231 deviates from the central axis of the angle adjusting device 23 and the first shaft portion 222 of the motor 22 .

In another embodiment, the angle adjusting device 23 is provided with a separation plate 236 in the space surrounded by the annular side wall 231, which is used to separate the receiving hole 233 from the tip 211 of the cargo path spring 21, This prevents the tip of the cargo path spring 21 from interfering with the first shaft portion 222 of the motor 22 , ensuring that the cargo path spring 21 can rotate smoothly and without interference driven by the motor 22 .

When assembling, the angle adjusting device 23 is sleeved on the first rotating shaft part 222 of the motor 22 through the receiving hole 233, and the plurality of first locking teeth 224 face the plurality of second locking teeth 234 . Then the elastic member 25 is sleeved on the first rotating shaft portion 222 of the motor 22, and then the limiting member 24 is sleeved and fixed on the first rotating shaft portion 222 of the motor 22 through the fixing hole 241. An end of the shaft portion 222 . In this way, the elastic member 25 is interposed between the bottom wall 232 of the angle adjusting device 23 and the limiting member 24, and the two ends of the elastic member 25 respectively abut against the bottom wall 232 and the stopper 24. On the limiting member 24, the elastic force exerted by the elastic member 25 on the bottom wall 232 drives the second locking teeth 234 on the angle adjusting device 23 to tightly close to the first locking teeth 224 on the motor 22. are engaged together (the angle adjusting device 23 is in the first position), so that the angle adjusting device 23 is fixed on the rotating shaft 221 of the motor 22 .

When the angle adjusting device 23 is pulled away from the second rotating shaft portion 223 by an external force, and the second locking tooth 234 is separated from the first locking tooth 224 (the angle adjusting device 23 is in the second position ), the angle adjustment device 23 can rotate around its own central axis, adjust the two through holes 235 to a selected angular position, and then release the external force applied to the angle adjustment device 23, and the elastic member Under the action of 25, the angle adjusting device 23 slides towards the second rotating shaft part 223, and the second locking tooth 234 and the first locking tooth 224 re-engage together (the angle adjusting device returns to the the second position described above). At this time, insert the tip 211 of the fixed end of the cargo path spring 21 into the two through holes 235 on the angle adjusting device 23, so that the fixed end of the cargo path spring 21 is fixed at the angle Adjustment device 23.

In this way, when the motor 22 rotates, the cargo path spring 21 will be driven to rotate, thereby driving the goods placed between the two adjacent spiral coils of the cargo path spring 21 to move, and the goods will be delivered to the delivery mouth.

After repeated deliveries, the rotation error of the motor 22 will gradually increase due to accumulation, resulting in that the goods cannot be accurately delivered to the delivery port (for example, the center of gravity of the goods is not sent out of the delivery port, and the goods cannot be delivered from the delivery port. At this time, the operator can first slide the angle adjustment device 23 to the second position, separate the second latch 234 from the first latch 224, and rotate the angle adjustment device 23. Adjust the two through holes 235 to an appropriate angular position, so that the initial angle of the cargo path spring 21 can be adjusted, and then return the angle adjusting device 23 to the first position, the The second locking tooth 234 re-engages with the first locking tooth 224 .

In this way, whenever the rotation error of the motor 22 is so large that the goods cannot be accurately conveyed, the operator can adjust the angular position of the two through holes 235 through the angle adjustment device 23, so that the When the initial angle of the goods path spring 21 is adjusted, the adjustment of the goods driving structure 20 can be completed, so that the goods driving structure 20 can always maintain accurate goods pushing ability.

Claims (10)

1. A cargo driving structure, including a motor and a spring, the spring includes a number of helical coils, each adjacent two helical coils are used to place the cargo, and the motor rotates to drive the spring to rotate and then drive the cargo, its features It is that: the cargo driving structure further includes an angle adjustment device, one end of the spring is fixed on the angle adjustment device, and the angle adjustment device is used to be fixed on the rotating shaft of the motor at different angles. 2. The cargo driving structure according to claim 1, characterized in that: the angle adjusting device is provided with a receiving hole, and the angle adjusting device is sleeved on the rotating shaft of the motor through the receiving hole, and the angle The adjusting device can slide between a first position and a second position along the rotating shaft of the motor, when the angle adjusting device is in the second position, the angle adjusting device can rotate around the rotating shaft of the motor, when the When the angle adjusting device is in the first position, the angle adjusting device is fixed on the rotating shaft of the motor. 3. The cargo driving structure according to claim 2, wherein a plurality of first locking teeth are provided on the rotating shaft of the motor, and second locking teeth corresponding to the first locking teeth are provided on the angle adjustment device. A locking tooth, when the angle adjusting device is in the first position, the first locking tooth and the second locking tooth mesh together, so that the angle adjusting device is fixed on the rotating shaft of the motor. 4. The cargo driving structure according to claim 3, wherein the second locking teeth surround the opening of the receiving hole. 5. The cargo driving structure according to claim 3, characterized in that: the cargo driving structure further comprises a limiter, and the limiter is fixed to the end of the rotating shaft of the motor to prevent the angle from being adjusted. The device is disengaged from the shaft of the motor. 6 . The cargo driving structure according to claim 5 , wherein the limiting member is provided with a fixing hole, and the limiting member is sleeved and fixed on the end of the rotating shaft of the motor through the fixing hole. 7 . 7. The cargo driving structure according to claim 5, characterized in that: the cargo driving structure further comprises an elastic member sleeved on the rotating shaft of the motor, and the elastic member is located between the angle adjusting device and the The two ends of the elastic member between the limiting members are against the angle adjusting device and the limiting member respectively. 8. The cargo driving structure according to claim 1, characterized in that: the angle adjustment device is provided with two through holes, and the tip of one end of the spring is penetrated and accommodated in the two through holes, so that One end of the spring is fixed on the angle adjusting device. 9. The cargo driving structure of claim 8, wherein said tip is offset from a central axis of said angle adjustment device. 10. An automatic vending machine, comprising a cargo lane housing, a plurality of cargo lanes are arranged in the cargo lane housing, and a partition plate is provided between every two adjacent cargo lanes, and it is characterized in that: Any cargo driving structure as claimed in claims 1-9 is provided.

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