A card ejecting mechanism

Abstract

The utility model relates to a card sending machine technical field, concretely relates to a card returning mechanism, include: card way, conveying mechanism, set up in the card way, be used for along the transmission direction conveying card, a pair of transmission part, respectively set up in the both ends of conveying mechanism, form the gap between transmission part and the surface of conveying mechanism, transmission part is configured as through the rotation to card and exert the driving force along the transmission direction, a pair of rotation part, set up in the entrance end close to conveying mechanism, be configured as when card advances provide the bearing, when card back -off provide the direction. Transmission part is provided with power gear, and the conveying mechanism includes power axle and conveyer belt, when card passes through the gap, power gear and conveyer belt can simultaneously exert the same driving force along the transmission direction to card and solve the problem that the card cannot normally transmit forward in the card moving process because of the insufficient friction, improve the stability of card transmission.

Description

Technical Field

[0001] This utility model relates to the field of card issuing machine technology, and in particular to a card return mechanism. Background Technology

[0002] In self-service card issuing systems at highway toll stations, the card issuer needs to quickly and accurately transfer cards from the card storage compartment to the card exit for drivers to use. The stability and reliability of this transfer process directly affect vehicle traffic efficiency. Currently, the mainstream card transfer mechanism in this field generally adopts a roller friction drive method. Specifically, a transmission unit consists of two opposing friction rollers, one of which is the driving roller and the other is the driven pressure roller. The card is held between the two rollers, and the drive is achieved by the friction force generated by the rotation of the rollers.

[0003] Because the transmission distance of a single set of rollers is limited, when cards need to be transported over a long track, multiple sets of such transmission units must be installed sequentially along the track direction. This method has several drawbacks. First, the longer the track, the more roller sets are required, leading to a significant increase in the number of components such as drive shafts, bearings, timing belts, and mounting brackets, resulting in a substantial rise in material costs. Second, a large number of mechanical parts means more complex assembly processes and higher installation and debugging costs. Furthermore, ensuring synchronization between multiple transmission units is difficult, and accumulated errors can easily cause problems such as card jamming, tilting, or unstable speed during transmission. In addition, a failure in any roller set can disrupt the entire transmission chain, making maintenance inconvenient and resulting in low overall system reliability.

[0004] If a card is detected as not being read successfully, it needs to be ejected. During the ejection process, the card passes through multiple rollers for gripping and releasing. Small errors in each roller group can accumulate and be amplified. If the pressure of a roller group is not adjusted properly—too tight and the card will be difficult to eject, or too loose and the card will slide and deviate during ejection, failing to return to the designated position accurately and affecting the accuracy of subsequent card issuance.

[0005] Therefore, this application develops a card return mechanism to solve the problems existing in the prior art. Utility Model Content

[0006] The purpose of this invention is to provide a card ejection mechanism to solve the problem of difficulty in ejecting cards when they are not read in the prior art.

[0007] The technical solution of this utility model is: a card return mechanism, comprising:

[0008] Chariot;

[0009] A conveying mechanism, disposed within the card track, is used to convey cards along the conveying direction;

[0010] A pair of conveying units are respectively disposed at both ends of the conveying mechanism. A gap is formed between the conveying units and the surface of the conveying mechanism. When the card passes through the gap, the conveying unit is configured to apply a driving force to the card along the conveying direction by rotating.

[0011] A pair of rotating parts, located near the entrance end of the conveying mechanism, are configured to provide carrying when the card advances and guiding when the card retracts.

[0012] Preferably, a pair of the rotating parts are rotatably disposed on the side wall of the card channel. The rotating part includes a guide surface. When the card moves forward, the guide surface is in a horizontal state to support the card and allow the card to continue moving forward. When the card moves backward, the guide surface is pressed downward to guide the card to fall.

[0013] Preferably, the end of the rotating part away from the conveying mechanism is provided with a first elastic part. When the card moves forward, the first elastic part applies force to keep the guide surface of the rotating part horizontal. When the card moves backward, the end of the rotating part close to the conveying mechanism is subjected to force, causing the rotating part to rotate and the card to fall.

[0014] Preferably, a drive mechanism is provided between the pair of rotating parts for driving the card forward, and an adjustment member is provided coaxially above the drive mechanism. The adjustment member is disposed in the card track and is movable up and down relative to the drive mechanism.

[0015] Preferably, the two side walls of the conveyor are symmetrically provided with movable grooves along the conveying direction, and the two ends of the conveying part are respectively movably disposed in the corresponding movable grooves and can move along the length direction of the movable grooves to adjust the distance between the conveying part and the surface of the conveying mechanism.

[0016] Preferably, both ends of the conveying section are provided with second elastic portions. One end of the second elastic portion is connected to the side wall of the track, and the other end is connected to the end of the conveying section. These second elastic portions are configured to continuously provide a preload force that moves the conveying section toward the surface of the conveying mechanism. Both ends of the adjusting member are provided with third elastic portions, and the adjusting member bears a preload force toward the driving mechanism.

[0017] Preferably, the conveying mechanism includes two conveying shafts, which are respectively disposed at both ends of the conveying mechanism. A pair of conveying parts are respectively connected to the two conveying shafts in a transmission connection. The conveying shafts and the conveying parts are connected in a transmission connection by meshing gears disposed at their ends.

[0018] Preferably, the conveying part and the driving mechanism are located in the middle of the track, and multiple gear teeth are arranged in a circumferential array, with each gear tooth arranged along the axial direction of the conveying part.

[0019] Compared with the prior art, the advantages of this utility model are:

[0020] (1) A pair of rotating parts are provided at the entrance end of the conveying mechanism, which are symmetrically arranged along the conveying direction and rotate around the end away from the conveying mechanism on the side wall of the card track. When the card moves forward, the rotating part, under the action of the first elastic part, keeps the guide surface horizontal, provides stable support for the card, and ensures smooth forward movement.

[0021] (2) When the card retracts, the contact rotating part is close to the end of the conveying mechanism and pressure is applied. The pressure overcomes the torsion spring force and causes the rotating part to tilt downward around the axis of rotation, providing accurate guidance for the card and guiding it to fall smoothly to the designated position.

[0022] (3) Multiple gear teeth are evenly distributed in a circular array in the middle of the transmission section and the drive mechanism. The gear teeth extend along the axial direction of the transmission section, so that the force acting on the card is uniform and the slippage phenomenon of traditional smooth rollers is avoided. The transmission mechanism adopts belt transmission. By setting a transmission section with gear teeth at the beginning and end, the card can be stably connected and disseminated at both ends, solving the problem that it is difficult to stably connect and disseminate cards by belt alone. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] Figure 1 This is a schematic diagram of the card ejection mechanism described in this utility model;

[0025] Figure 2 This is a side view of a card ejection mechanism according to the present invention;

[0026] Figure 3 This is a front view of a card ejection mechanism according to the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the rotating part described in this utility model;

[0028] Figure 5 This is a schematic diagram of the drive mechanism described in this utility model.

[0029] Wherein: 1. Track; 11. Moving groove; 2. Conveying mechanism; 21. Conveying shaft; 3. Conveying part; 4. Rotating part; 41. Guide surface; 5. First elastic part; 6. Drive mechanism; 7. Adjusting component; 8. Second elastic part; 9. Third elastic part; 10. Gear teeth. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to specific embodiments:

[0031] like Figures 1-3 As shown, a card ejection mechanism includes a card channel 1, a conveying mechanism 2, a pair of conveying parts 3, and a pair of rotating parts 4. The card channel 1 forms a guide channel for card transmission. The conveying mechanism 2 is disposed inside the card channel 1, with two parallel conveying shafts 21 at both ends. The pair of conveying parts 3 are respectively installed at both ends of the conveying mechanism 2 and are connected to the ends of the corresponding conveying shafts 21 via gear transmission components. During operation, a gap is formed between the outer peripheral surface of the conveying part 3 and the upper surface of the conveying mechanism 2 for the card to pass through. When the card enters the gap, its upper and lower surfaces contact the conveying part 3 and the conveying mechanism 2, respectively. At this time, the continuously rotating conveying shafts 21 drive the conveying parts 3 to rotate via gear transmission, causing the conveying parts 3 to apply a driving force along the direction of the card channel 1 based on the friction between their surfaces and the card, thereby pushing the card to move in a stable linear motion.

[0032] In this embodiment, as Figure 4 As shown, a pair of rotating parts 4 are provided at the entrance end of the conveying mechanism 2 and are symmetrically arranged along the conveying direction. They rotate around the end away from the conveying mechanism 2 on the side wall of the card channel 1. When the card moves forward, the rotating part 4 can provide stable support for the card and ensure that the card moves smoothly. When the card moves backward, the end of the rotating part 4 away from the card pushing mechanism is rotated by the pressure of the card, so that the card can fall smoothly. A driving mechanism 6 is provided between the pair of rotating parts 4. The driving mechanism 6 provides power to the card to move in the direction of the conveying mechanism 2.

[0033] Specifically, the rotating part 4 has a guide surface 41, and each rotating part 4 is connected to a first elastic part 5, such as a torsion spring. Mounting holes are respectively opened at corresponding positions on both sides of the card track 1. The rotating part 4 is mounted in the mounting holes via a rotating shaft, allowing it to rotate around the shaft. One end of the torsion spring is connected to the rotating part 4, and the other end is fixed to the side wall of the card track 1. When the card moves forward, the guide surface 41 remains horizontal due to the force of the torsion spring. At this time, the rotating part 4 can provide stable support for the card, ensuring that the card moves smoothly within the card track 1. When the card retracts, when the card contacts the rotating part 4 and applies a certain pressure to the end near the conveying mechanism 2, this pressure overcomes the force of the torsion spring, causing the rotating part 4 to tilt downwards around the shaft, thereby providing accurate guidance for the card and guiding it smoothly to the designated position.

[0034] To maintain continuous power to the cards, a drive mechanism 6 is provided between the pair of rotating parts 4 to drive the cards forward. In addition, an adjustment member 7 is coaxially provided above the drive mechanism 6. The adjustment member 7 is located in the card track 1, and its two ends are provided with third elastic parts 9, such as compression springs. When the card passes through the adjustment member 7, regardless of the thickness of the card, the third elastic parts 9 always exert a downward force on the adjustment member 7, so that the adjustment member 7 can move up and down relative to the drive mechanism 6. By adjusting the height of the adjustment member 7, the local space height in the card track 1 is changed, thereby adapting to the transportation needs of cards of different thicknesses. When transporting thicker cards, the adjustment member 7 is moved upward to increase the height of the card transportation space in the card track 1. When transporting thinner cards, the adjustment member 7 is moved downward to decrease the space height, making the cards more stable during transportation.

[0035] Furthermore, symmetrical moving grooves 11 are provided on both sides of the conveying direction of the track 1. The moving grooves 11 are elongated and their length direction is perpendicular to the conveying direction of the track 1. The two ends of the conveying part 3 are movably disposed in the corresponding moving grooves 11 and can slide along the length direction of the moving grooves 11. The width of the moving grooves 11 is adapted to the diameter of the conveying part 3, so that after the two ends of the conveying part 3 are embedded in the moving grooves 11, they are constrained by the side walls of the moving grooves 11 and can only move in a straight line along the extension direction of the moving grooves 11, and cannot be displaced in a direction parallel to the conveying direction or other directions, thereby ensuring the stability and accuracy of the movement of the conveying part 3.

[0036] Example 1:

[0037] When the transport mechanism transports only cards of a single size, the length of the moving slot 11 is set to a fixed value. This length is set such that when the card moves to the drive gap between the surface of the conveyor 3 and the conveyor mechanism 2, both ends of the conveyor 3 move to the highest point of the travel of the moving slot 11. At this position, the conveyor 3 contacts and drives the card with a preset pressure. Similarly, when the card moves to the end of the conveyor mechanism 2 and is about to be dispatched, the conveyor 3 is also located at a specific point on its movement trajectory and continuously applies stable pressure, thereby ensuring that the card is reliably delivered out of the card channel 1.

[0038] Example 2:

[0039] To accommodate cards of varying thicknesses, this embodiment designs the moving slot 11 to be longer, thus providing the conveying unit 3 with a sufficient range of motion. However, a larger range of motion can prevent the conveying unit 3 from consistently applying effective contact pressure to cards of different thicknesses. Therefore, this application provides second elastic portions 8, such as compression springs, at both ends of the conveying unit 3. One end of the second elastic portion 8 is fixed to the side wall of the card track 1, and the other end is connected to the end of the conveying unit 3, continuously applying a preload force pointing towards the surface of the conveying mechanism 2. This ensures that regardless of changes in card thickness, the conveying unit 3 can automatically adjust its position under the push of the elastic portion, always maintaining close contact with the card surface, thereby providing continuous and reliable driving force for cards of all sizes.

[0040] In practical applications, the conveying mechanism 2 is also provided with conveying shafts 21 at both ends. At the ends of the conveying shafts 21 and the conveying part 3, there are meshing gear structures respectively. The gear at the end of the conveying shaft 21 is the driving gear, and the gear at the end of the conveying part 3 is the driven gear, which meshes with the driving gear. Through the interaction force between the gears, the rotational power of the conveying shaft 21 is transmitted to the conveying part 3, thereby realizing the rotation of the conveying part 3 and achieving the purpose of conveying the card.

[0041] In another embodiment of this application, the conveying unit 3 is equipped with a drive motor at one end of the driven gear. The drive motor drives the driven gear to rotate at the same speed as the driving gear. By having both sets of driving gears work simultaneously, the conveying force applied to the card is ensured to be sufficiently large, thereby avoiding the phenomenon that the card cannot be conveyed forward normally due to insufficient friction on the card surface. Meanwhile, in this example, the conveying mechanism 2 uses a belt conveyor.

[0042] In addition, such as Figure 5 As shown, multiple gear teeth 10 are evenly distributed in a circumferential array in the middle of the conveying section 3 and the driving mechanism 6. The extension direction of each gear tooth 10 is along the axial direction of the conveying section 3, so that the force acting on the card is uniform and avoids the slippage phenomenon that may occur with traditional smooth rollers. On the other hand, at the beginning and end of the conveying mechanism 2, it is difficult to attach the card to the belt or send the card out by means of belt alone. Therefore, by setting the conveying section 3 with gear teeth 10, the cards can be stably attached and sent out at both ends of the conveying mechanism 2.

[0043] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A card refund mechanism, characterized in that, include: Cartway (1); A conveying mechanism (2) is provided in the card track (1) for conveying cards along the conveying direction; A pair of conveying parts (3) are respectively disposed at both ends of the conveying mechanism (2). A gap is formed between the conveying part (3) and the surface of the conveying mechanism (2). When the card passes through the gap, the conveying part (3) is configured to apply a driving force along the conveying direction to the card by rotating. A pair of rotating parts (4), located near the entrance end of the conveying mechanism (2), are configured to provide carrying when the card moves forward and to provide guidance when the card moves backward.

2. The card return mechanism according to claim 1, characterized in that: A pair of rotating parts (4) are rotatably disposed on the side wall of the card channel (1). The rotating part (4) includes a guide surface (41). When the card moves forward, the guide surface (41) is in a horizontal state to support the card and allow the card to continue moving forward. When the card moves backward, the guide surface (41) is pressed downward to guide the card to fall.

3. The card return mechanism according to claim 2, characterized in that: The rotating part (4) is provided with a first elastic part (5) at the end away from the conveying mechanism (2). When the card moves forward, the first elastic part (5) applies force to keep the guide surface (41) of the rotating part (4) horizontal. When the card moves backward, the end of the rotating part (4) close to the conveying mechanism (2) is subjected to force, causing the rotating part (4) to rotate and the card to fall.

4. A card return mechanism according to claim 2, characterized in that: A drive mechanism (6) is provided between the pair of rotating parts (4) for driving the card forward. An adjustment member (7) is provided coaxially above the drive mechanism (6). The adjustment member (7) is located in the card channel (1) and is moved up and down relative to the drive mechanism (6).

5. A card return mechanism according to claim 1, characterized in that: The card track (1) has symmetrical moving grooves (11) on both sides of the conveying direction. The two ends of the conveying part (3) are respectively movably disposed in the corresponding moving grooves (11) and can move along the length direction of the moving grooves (11) to adjust the distance between the conveying part (3) and the surface of the conveying mechanism (2).

6. A card return mechanism according to claim 4, characterized in that: The two ends of the conveying part (3) are provided with a second elastic part (8). One end of the second elastic part (8) is connected to the side wall of the track (1), and the other end is connected to the end of the conveying part (3). It is configured to continuously provide a preload force that causes the conveying part (3) to move toward the surface of the conveying mechanism (2). The two ends of the adjusting member (7) are provided with a third elastic part (9), and the adjusting member (7) bears a preload force toward the driving mechanism (6).

7. A card return mechanism according to claim 1, characterized in that: The conveying mechanism (2) includes two conveying shafts (21), which are respectively disposed at both ends of the conveying mechanism (2). A pair of conveying parts (3) are respectively connected to the two conveying shafts (21) for transmission. The conveying shafts (21) and the conveying parts (3) are connected by meshing gears at their ends.

8. A card return mechanism according to claim 4, characterized in that: The conveying part (3) and the driving mechanism (6) are located in the middle of the track (1), and multiple gear teeth (10) are arranged in a circumferential array, with each gear tooth (10) arranged along the axial direction of the conveying part (3).

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