CN212291542U

CN212291542U - Card formula certificate transport mechanism

Info

Publication number: CN212291542U
Application number: CN202020533640.XU
Authority: CN
Inventors: 周忠明
Original assignee: China Vision Intelligent Card Reader Co ltd
Current assignee: China Vision Intelligent Card Reader Co ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2021-01-05
Anticipated expiration: 2030-04-13

Abstract

The utility model relates to a card type certificate conveying mechanism, which comprises a driving unit and two groups of conveying units; each group of conveying units comprises a first clamping piece, a second clamping piece, an elastic transmission wheel set, a driving wheel, a driven wheel and a transmission belt; a guide groove is arranged between the first clamping piece and the second clamping piece; the guide grooves of the two groups of conveying units are oppositely arranged and are mutually matched so as to clamp the two oppositely arranged side edges of the card-type certificate and guide the card-type certificate; the guide groove comprises a first end and a second end; when the driving unit drives the driving wheel to rotate and drives the transmission belt to rotate, the transmission wheel set drives the transmission belt to protrude towards the guide groove and generate friction with the card type certificate through generating elasticity, and then the card type certificate is driven to be conveyed from the first end of the guide groove to the second end of the guide groove or conveyed from the second end of the guide groove to the first end of the guide groove. The card type certificate transmission equipment has the advantages of simple and convenient operation and long service life.

Description

Card formula certificate transport mechanism

Technical Field

The utility model relates to a card formula certificate is made and transceiver field, and more specifically says, relates to a card formula certificate transport mechanism.

Background

With the continuous development of economy and the improvement of science and technology in China, more and more certificates are applied and used for transacting business, and after the card type certificate transmission mechanism of the card type certificate transmission equipment which is put into use at present runs for a period of time, a transmission wheel is easy to wear, so that the card type certificate cannot be normally transmitted.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a modified card formula certificate transport mechanism.

The utility model provides a technical scheme that its technical problem adopted is: constructing a card type certificate conveying mechanism, which comprises a driving unit and two groups of conveying units which are driven by the driving unit and are arranged at intervals and can be matched with each other to convey a card type certificate;

each group of conveying units comprises a first clamping piece and a second clamping piece which are opposite and arranged at intervals, an elastic transmission wheel set arranged between the first clamping piece and the second clamping piece, a driving wheel and a driven wheel which are positioned at two sides of the transmission wheel set, and a transmission belt sleeved on the peripheries of the driving wheel, the transmission wheel set and the driven wheel;

a guide groove is arranged between the first clamping piece and the second clamping piece; the guide grooves of the two groups of conveying units are oppositely arranged and are mutually matched so as to be clamped into two oppositely arranged side edges of the card-type certificate and guide the card-type certificate; the guide groove comprises a first end and a second end;

when the driving unit drives the driving wheel to rotate and drive the transmission belt to rotate, the transmission wheel set drives the transmission belt to protrude towards the guide groove by generating elastic force and generate friction with the card-type certificate, so that the card-type certificate is driven to be conveyed from the first end of the guide groove to the second end of the guide groove or conveyed from the second end of the guide groove to the first end of the guide groove.

Preferably, the transmission wheel set comprises a plurality of transmission wheels arranged side by side at intervals;

each driving wheel comprises a rotating shaft and an elastic soft wheel body sleeved on the rotating shaft;

two ends of the rotating shaft are respectively connected with the first clamping piece and the second clamping piece,

the soft wheel body is positioned between the first clamping piece and the second clamping piece.

Preferably, the soft wheel body is a soft rubber wheel body.

Preferably, the soft wheel body is a gear body;

and the transmission belt is provided with an inner gear ring meshed with the gear body.

Preferably, the first clamping piece is provided with a first mounting positioning hole which is arranged corresponding to the driving wheel and used for mounting the driving wheel;

and a second mounting positioning hole which is arranged corresponding to the driving wheel and used for mounting the driving wheel is arranged on the second clamping piece.

Preferably, the first clamping piece is provided with a first walking groove for the driving belt to walk;

the second clamping piece is provided with a second walking groove for the driving belt to walk;

the first walking groove and the second walking groove are arranged on one side close to the guide groove and are arranged oppositely.

Preferably, a first opening is formed at the first end of the guide groove;

and a second opening is formed at the second end of the guide groove.

Preferably, the driving unit includes a driving motor for driving the driving wheel to rotate, a driving wheel disposed on an output shaft of the driving motor, and a transmission assembly connected to the driving wheel and the driving wheel.

Preferably, the transmission assembly comprises two synchronizing wheels correspondingly connected with driving wheels of the two groups of conveying units, and a synchronous belt wound on the two synchronizing wheels and the driving wheel.

Preferably, the drive unit further comprises a mounting plate for mounting the drive motor, the drive wheel and the transmission assembly.

Implement the utility model discloses a card formula certificate transport mechanism has following beneficial effect: the card type certificate conveying mechanism can drive the driving wheel of the conveying unit to rotate through the driving unit and drive the transmission belt to rotate, so that the elastic transmission wheel set drives the transmission belt to protrude towards the guide groove through generating elastic force and generate friction with the card type certificate, and the card type certificate is driven to be conveyed from the first end of the guide groove to the second end of the guide groove or conveyed from the second end of the guide groove to the first end of the guide groove. The card type certificate conveying mechanism generates elastic force through the elastic transmission wheel set to drive the transmission belt to rub against the card type certificate and adjusts the applied pressure through the pressure adjusting device, so that the abrasion of the transmission wheel set can be avoided, the transmission wheel is prevented from slipping, and the service life of the card type certificate conveying device can be prolonged.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

FIG. 1 is a schematic view of a card document transport apparatus according to some embodiments of the present invention in which a card document is inserted;

FIG. 2 is a schematic view of the card conveyance device of FIG. 1 in a state of conveying a card document;

FIG. 3 is a schematic bottom view of the card transport apparatus of FIG. 1;

FIG. 4 is a schematic view of a portion of the card transport apparatus of FIG. 1;

FIG. 5 is an exploded view of a portion of the card transport apparatus of FIG. 1;

FIG. 6 is a schematic view of the construction of the card document transport mechanism of the card document transport apparatus of FIG. 1;

FIG. 7 is a schematic view of a portion of the card transport mechanism of FIG. 6;

FIG. 8 is a side elevational view of the card transport mechanism of FIG. 6;

FIG. 9 is a schematic view of a first jaw of the card transport mechanism of FIG. 6;

fig. 10 is a schematic view of the drive pulley of the card transport mechanism of fig. 7.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figures 1 and 2 show some preferred embodiments of the card document transport apparatus of the present invention. The card document transport apparatus can be used to transport the card document 100, thereby facilitating the transceiving and preparation of the document. The card type certificate transmission equipment has the advantages of simple and convenient operation and long service life.

As shown in fig. 1 and 2, the card document transport apparatus may include a card document 100 transport mechanism 10 and a pressure adjustment device 20. The card document 100 transport mechanism 10 can be used to transport the card document 100. The pressure adjustment device 20 can be provided on the card 100 transport mechanism 10 and can adjust the pressure applied by the card 100 transport mechanism 10 to the card 100.

Further, in some embodiments, the card document 100 transport mechanism 10 can include a drive unit 11 and a transport unit 12. The drive unit 11 is operable to drive the transfer unit 12 to transfer the card document 100. The transfer units 12 may be two sets. The two sets of transfer units 12 may be spaced apart and opposed, the spacing therebetween forming a channel for the transfer of the card document 100. The two sets of transmission units 12 can be connected with the driving unit 11, and can be driven by the driving unit 11 to mutually cooperate and transmit the card-type document 100.

As shown in fig. 3-5, further, in some embodiments, the drive unit 11 may include a mounting plate 111, a drive motor 112, a drive wheel 113, and a transmission assembly 114. The mounting plate 111 may be disposed at one side of one of the sets of the transfer units 12, and may be mounted with the driving motor 112, the driving wheel 113, and the transmission assembly 114. The driving motor 112 can be mounted on the mounting plate 111, specifically, an output shaft of the driving motor 112 can pass through the mounting plate 111 from one side to the other side along the thickness direction of the mounting plate 111, and the driving motor 112 can be used for driving the transmission unit 12 to transmit. In some embodiments, the drive motor 112 may be a counter-rotating motor. The driving wheel 113 can be disposed on the mounting plate 111, and can be sleeved on an output shaft of the driving motor 112, which can be driven by the driving motor 112 to rotate. The transmission assembly 114 can be installed on the installation plate 111, and can be connected to the driving wheel 113 and the transmission unit 12, and can be driven by the driving wheel 113 to rotate, so as to drive the transmission unit 12 to transmit.

Further, as shown in fig. 5-10, in some embodiments, the driving assembly 114 may include two synchronizing wheels 1141 and a timing belt 1142. The two synchronizing wheels 1141 are respectively connected to the two sets of transporting units 12, and can rotate synchronously to drive the two sets of transporting units 12 to transport the card 100 in the same direction. The synchronous belt 1142 can be wound around the two synchronous wheels 1141 and the driving wheel 113, and can drive the synchronous wheel 1141 to rotate under the driving of the driving wheel 113.

Further, in some embodiments, each set of the conveying units 12 may include a fixing plate 120, a first jaw 121, a second jaw 122, a transmission wheel set 125, a driving wheel 123, a driven wheel 124, and a transmission belt 126. The fixing plate 120 is used for mounting the first jaw 121, the driving wheel 123 and the driven wheel 124. The first jaw 121 and the second jaw 122 may be disposed opposite to each other and spaced apart from each other, and have a symmetrical structure, and the gap between the first jaw 121 and the second jaw 122 may form a guide groove 127. The second clip 122 can be located above the first clip 121. The transmission wheel set 125 can be disposed between the first clamping piece 121 and the second clamping piece 122. The driving wheels 123 and the driven wheels 124 can be disposed on two sides of the transmission wheel set 125, and the two driving wheels 123 of the two sets of transmission units 12 are respectively connected to the transmission assemblies 114, specifically, they can be correspondingly connected to the two synchronizing wheels 1141, which can be driven by the synchronizing wheels 1141 to rotate. The transmission wheel set 125 is disposed between the first clamping piece 121 and the second clamping piece 122, and has elasticity, which can generate elastic force to drive the transmission belt 126 to protrude toward the guiding groove 127, so that the transmission belt 126 can generate friction with the card 100, and further drive the card 100 to transmit. The transmission belt 126 can be sleeved on the driving wheel 123, the transmission wheel set 125 and the driven wheel 124, and can drive the transmission wheel set 125 and the driven wheel 124 to rotate when the driving wheel 123 rotates. The guide slots 127 of the two sets of transport units 12 are oppositely disposed and cooperate with each other to allow the two oppositely disposed sides of the card 100 to be engaged and to guide the card 100.

Further, in some embodiments, the first clip 121 may be a metal plate, and two ends of the first clip may be respectively provided with an escape position for the driving wheel 123 and the driven wheel 124 to be installed. The first clamping piece 121 can be provided with a plurality of first mounting positioning holes 1211, and in some embodiments, the number of the first mounting positioning holes 1211 can be three. The three first mounting holes 1211 are spaced apart from each other, and may be disposed corresponding to the driving wheel of the driving wheel set, and the driving wheel is mounted thereon. The depth of the first positioning hole 1211 can be smaller than the height of the driving wheel. The first mounting hole 1211 can include an insertion hole and a receiving cavity at an end of the insertion hole. The insertion hole can be used for inserting the rotating shaft 1251 of the driving wheel, and the accommodating cavity can be used for accommodating the soft wheel body 1252 of the driving wheel set. In some embodiments, a first slot 1212 can be disposed on the first clip 121; the first slot 1212 may be disposed along a length direction of the first clip 121. The first guiding groove 1212 is disposed near a side of the guiding groove 127, and is used for guiding the driving belt 126, so as to prevent the driving belt 126 from slipping off or shifting.

Further, in some embodiments, the second clip 122 may be a metal plate, and both ends of the second clip may be respectively provided with an escape position for the driving wheel 123 and the driven wheel 124 to be installed. The second clamping piece 122 can be provided with a plurality of second mounting positioning holes, which are opposite to the first mounting positioning holes and are in one-to-one correspondence with the first mounting positioning holes, and can be matched with the first mounting positioning holes for mounting the driving wheels of the driving wheel set 125. Specifically, in some embodiments, the second mounting location holes may be three. The three second mounting positioning holes are arranged at intervals, can be arranged corresponding to the driving wheel and can be used for mounting the driving wheel. The depth of the second mounting positioning hole can be smaller than the height of the driving wheel. The second mounting positioning hole can comprise an insertion hole and an accommodating cavity positioned at one end of the insertion hole. The insertion hole can be used for inserting the rotating shaft 1251 of the driving wheel, and the accommodating cavity can be used for accommodating the soft wheel body 1252 of the driving wheel. In some embodiments, a second slot 1221 can be disposed on the second clip 122; the second slot 1221 can be disposed along the length direction of the second clip 122, and is disposed opposite to the first slot 1212. The second slot 1221 can be disposed near one side of the guiding groove 127, and can be used for guiding the belt 126, so as to prevent the belt 126 from slipping off or shifting.

Further, in some embodiments, the driving wheel 123 may be a gear, which may be located at one end of the first jaw 121 and the second jaw 122, and may be connected to the synchronizing wheel 1141, which may be driven by the synchronizing wheel 1141 to rotate. It is understood that in other embodiments, the driving wheel 123 may not be limited to gears.

Further, in some embodiments, the driven wheel 124 may be a gear, which may be located at the other end of the first jaw 121 and the second jaw 122, and may be rotated by the driving belt 126. It will be appreciated that in other embodiments, the driven wheel 124 may not be limited to gears.

Further, in some embodiments, the drive wheel set 125 may include a plurality of drive wheels. The plurality of driving wheels may be disposed side by side and spaced apart from each other, and may be installed in the first installation positioning hole 1211 and the second installation positioning hole in a one-to-one correspondence. In some embodiments, the number of the transmission wheels may be three, and the three transmission wheels may be located side by side between the driving wheel 123 and the driven wheel 124. Further, in some embodiments, each drive wheel may include a shaft 1251 and a soft wheel 1252. During installation, two ends of the rotating shaft 1252 are respectively connected to the first clamping piece 121 and the second clamping piece 122, and specifically, two ends of the rotating shaft 1252 can be respectively inserted into the insertion holes of the first installation positioning hole 1211 and the second installation positioning hole, and can rotate in the insertion holes. The soft wheel 1252 can be sleeved on the rotating shaft 1251, and during installation, it can be placed between the first clamping piece 121 and the second clamping piece 122, specifically, it can be located in the receiving cavity of the first mounting positioning hole 1211 and the second mounting positioning hole, the soft wheel 1252 has elasticity, it can generate elastic force to drive the driving belt 126 to protrude toward the guiding groove 127, and further rub against the side of the card-type document 100 to drive the card-type document 100 to be transferred, and can avoid the wear to cause the transfer mechanism to fail to operate normally, thereby improving the service life of the card-type document transfer mechanism. In some embodiments, the soft wheel 1252 may be a soft rubber wheel, and the soft wheel 1252 may be a gear wheel.

Further, in some embodiments, the belt 126 may be disposed between the driving wheel 123, the driving wheel, and the driven wheel 124. The upper and lower sides of the belt 126 can be respectively disposed in the first and second running

grooves

1212 and 1221, and can reciprocate in the first and second running

grooves

1212 and 1221. In some embodiments, the inner sidewall of the driving belt 126 may be provided with an inner ring gear 1261, and the inner ring gear 1261 may be engaged with the gear body, and particularly, in some embodiments, may be engaged with the driving wheel 123, the driven wheel 124 and the driving wheel.

Further, in some embodiments, the guide slot 127 can include a first end, which can be an end into or out of the card document 100, and a second end, which can be an end out of or in of the card document 100. In some embodiments, a first opening 1271 may be provided at a first end of the guide slot 127 and a second opening 1272 may be provided at a second end of the guide slot 127. The first opening 1271 and the second opening 1272 may have a splayed shape, and the inner size thereof may gradually shrink toward the guide groove 127. The loading of the card 100 into the guide groove 127 is facilitated by the provision of the first opening 1271 and the second opening 1272. Of course, it will be appreciated that in other embodiments, the first opening 1271 can also be accessible for the card document 100 to pass out, and the second opening 1272 can also be accessible for the card document 100 to pass in.

When the card-type document conveying mechanism 10 is used, the driving wheel 123 can be driven to rotate by the driving unit 11, so as to drive the transmission belt 126 to rotate, when the transmission belt 126 rotates, the transmission wheel set 125 can drive the transmission belt 126 to protrude towards the guide groove 127 by generating elastic force and generate friction with the card-type document 100, so as to drive the card-type document 100 to be conveyed from the first end of the guide groove 127 to the second end of the guide groove 127 or drive the card-type document 100 to be conveyed from the second end of the guide groove 127 to the first end of the guide groove 127. Specifically, the driving motor 112 can be started to rotate positively to drive the driving wheel 113 to rotate, and further the synchronous belt 1142 drives the synchronous wheel 1141 to rotate, so as to drive the driving wheel 123 to rotate, further the driven wheel 124 is matched to drive the transmission belt 126 to rotate, and the transmission belt 126 is rotated to drive the transmission wheel of the transmission wheel set 125 to rotate, and the soft wheel body 1252 of the transmission wheel drives the transmission belt 126 to protrude towards the guide groove 127 by generating an elastic force, so that the transmission belt 126 and the side edge of the card-type document 100 rub to push the card-type document 100 to be conveyed from the first end of the guide groove 127 to the second end of the guide groove 127. In some embodiments, the driving motor 112 is activated to rotate reversely to drive the driving wheel 113 to rotate, and further drive the synchronizing wheel 1141 to rotate through the synchronizing belt 1142, so as to drive the driving wheel 123 to rotate, further drive the driving belt 126 to rotate through the driven wheel 124 in cooperation, and drive the driving wheel of the driving wheel set 125 to rotate through the driving belt 126, and the soft wheel body of the driving wheel drives the driving belt 126 to protrude toward the guiding slot 127 by generating an elastic force, so that the driving belt 126 and the side edge of the card 100 rub against each other to push the card 100 to be conveyed from the second end of the guiding slot 127 to the first end of the guiding slot 127.

As shown in fig. 1 to 4, the pressure adjusting device 20 can be connected to the two sets of transmission units 12 respectively, and can be used to drive the two sets of transmission units 12 to move relatively so as to adjust the pressure applied by the transmission wheel set 125 of the two sets of transmission units 12 to the card 100, thereby ensuring the normal operation of the card transmission mechanism and ensuring the transmission of the card 100.

Further, in some embodiments, the pressure adjusting device 20 may include a pressure plate 21, an adjusting member 22, and an elastic member 23. The pressing plate 21 can be disposed between the first clamping pieces 121 of the two sets of transfer units 12. The first clamping pieces 121 of the two sets of transfer units 12 can move relatively to the pressing plate 21. The adjusting member 22 can be connected to the pressing plate 21 and one set of the conveying units 12, and can be used to drive the conveying units 12 to move toward the pressing plate 21 or away from the pressing plate 21. The elastic member 23 can be sleeved on the periphery of the adjusting member 22, and can apply elastic force to the adjusting member 22 when the adjusting member 22 is adjusted.

Further, in some embodiments, the pressing plate 21 may be a metal plate, which may have a rectangular parallelepiped shape. It is understood that in other embodiments, the pressing plate 21 may not be limited to a metal plate material, and the shape thereof may not be limited to a rectangular parallelepiped shape. In some embodiments, the adjusting holes 211 may be disposed on a side of the pressing plate 21 opposite to the first clamping pieces 121 of the two sets of conveying units 12, and it is understood that in some embodiments, the adjusting holes 211 may be disposed on two sides of the pressing plate 21 opposite to the two sets of conveying units 12. The adjusting hole 211 may be plural. The plurality of adjustment holes 211 may be arranged side by side and at intervals along a length direction of a side of the pressing plate 21 opposite to one set of the transfer units 12. In some embodiments, the inner side of the adjusting hole 211 may be provided with an inner thread, which may be threadedly coupled with the adjusting member 22.

Further, in some embodiments, the adjusting member 22 may be a plurality of adjusting holes 211, which are disposed in a one-to-one correspondence with the adjusting holes 211 and at least partially penetrate through the conveying unit 12 and the adjusting holes 211, specifically, in some embodiments, a plurality of through holes 1201 may be disposed on a side wall of the fixing plate 120 of the conveying unit 12, the plurality of through holes 1201 are disposed in correspondence with the adjusting holes 211, and the adjusting member 22 may partially penetrate into the adjusting holes 211 from the through holes. In some embodiments, the adjusting member 22 can be an adjusting screw, and the adjusting member 22 includes an adjusting portion 221 and a manipulating portion 222. The adjusting portion 221 may be cylindrical and may be disposed through the transmitting unit 12 and the adjusting hole 211, specifically, the adjusting portion 221 may penetrate through the adjusting hole 211 from the through hole 1201, an external thread may be disposed on an outer side of the adjusting portion 221, and the external thread may be disposed corresponding to an internal thread of the adjusting hole 211 and may be screwed with the internal thread of the adjusting hole. The manipulation part 222 may be disposed at one end of the adjustment part 221, and may be a nut, whose radial dimension may be larger than that of the adjustment part 221, and which may be located outside the adjustment hole 211. When the card reader is used, the operation part 222 is rotated to enable the adjusting part 221 to extend into the adjusting hole 211, the extrusion amount of the elastic piece 23 is increased, the pressure applied to the fixing plate 120 by the elastic piece 23 is increased, the conveying unit 12 moves towards the pressing plate 21, and the pressure applied to the card document 100 by the conveying belt 126 is increased. Rotating the operation part 222 causes the adjustment part 221 to move to the outside of the adjustment hole 211, the amount of pressing of the elastic member 23 decreases, the pressing force of the elastic member 23 to the fixing plate 120 decreases, the transport unit 12 moves away from the pressing plate 21, and the pressing force of the transport belt 126 to the card 100 decreases.

Further, in some embodiments, the elastic member 23 may be a plurality of elastic members, which may be disposed in one-to-one correspondence with the adjusting members 22. In some embodiments, the elastic member 23 may be a spring. One end of the elastic element 23 can abut against the operation part 222, and the other end can abut against the side wall of the pressing plate 21. In some embodiments, the elastic member 23 may have a spiral taper shape, and the taper portion thereof may abut against the manipulation portion 222. When in use, the control portion 222 can extrude the tapered portion of the elastic member 23, and one end of the elastic member 23 away from the tapered portion can generate pressure on the fixing plate 120, so as to drive the whole conveying unit 12 to slide in the direction of the pressing plate 21, so that the inner side of the timing belt of the other group of conveying units 12 has a constant pressure.

It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The card type certificate conveying mechanism is characterized by comprising a driving unit (11) and two groups of conveying units (12) which are driven by the driving unit (11), arranged at intervals and can be matched with each other to convey a card type certificate (100);

each group of conveying units (12) comprises a first clamping piece (121) and a second clamping piece (122) which are opposite and arranged at intervals, an elastic transmission wheel set (125) which is arranged between the first clamping piece (121) and the second clamping piece (122), a driving wheel (123) and a driven wheel (124) which are positioned at two sides of the transmission wheel set (125), and a transmission belt (126) which is sleeved on the peripheries of the driving wheel (123), the transmission wheel set (125) and the driven wheel (124);

a guide groove (127) is formed between the first clamping piece (121) and the second clamping piece (122); the guide grooves (127) of the two groups of conveying units (12) are oppositely arranged and are mutually matched so as to clamp the two oppositely arranged side edges of the card type certificate (100) and guide the card type certificate (100); the guide slot (127) comprises a first end and a second end;

when the driving unit (11) drives the driving wheel (123) to rotate and drives the transmission belt (126) to rotate, the transmission wheel set (125) drives the transmission belt (126) to protrude towards the guide groove (127) by generating elastic force and generate friction with the card type certificate (100), and then the card type certificate (100) is driven to be transmitted from the first end of the guide groove (127) to the second end of the guide groove (127) or transmitted from the second end of the guide groove (127) to the first end of the guide groove (127).

2. The card transport mechanism of claim 1, wherein the drive wheel assembly (125) includes a plurality of drive wheels arranged side-by-side and spaced apart;

each driving wheel comprises a rotating shaft (1251) and an elastic soft wheel body (1252) sleeved on the rotating shaft (1251);

two ends of the rotating shaft (1251) are respectively connected with the first clamping piece (121) and the second clamping piece (122),

the soft wheel body (1252) is located between the first clip piece (121) and the second clip piece (122).

3. The card transport mechanism of claim 2, wherein the soft wheel (1252) is a soft rubber wheel.

4. The card transport mechanism of claim 2, wherein the soft wheel (1252) is a gear body;

and a ring gear (1261) meshed with the gear body is arranged on the transmission belt (126).

5. The credential transport mechanism as in claim 2 wherein the first jaw (121) defines a first mounting hole (1211) corresponding to and for mounting the drive wheel;

and a second mounting positioning hole which is arranged corresponding to the driving wheel and used for mounting the driving wheel is arranged on the second clamping piece (122).

6. The card transport mechanism of claim 1, wherein the first jaw (121) is provided with a first indexing slot for indexing the belt (126);

a second walking groove for the driving belt (126) to walk is formed in the second clamping piece (122);

the first walking groove and the second walking groove are arranged on one side close to the guide groove (127) and are arranged oppositely.

7. The card transport mechanism of claim 1, wherein the first end of the guide slot (127) is provided with a first opening (1271);

the second end of the guide groove (127) is provided with a second opening (1272).

8. The card transport mechanism according to claim 1, wherein the drive unit (11) includes a drive motor (112) for driving the capstan (123) in rotation, a drive wheel (113) disposed on an output shaft of the drive motor (112), and a transmission assembly (114) connected to the drive wheel (113) and the capstan (123).

9. The card transport mechanism of claim 8, wherein the drive assembly (114) includes two timing wheels (1141) correspondingly coupled to the drive wheels (123) of the two sets of transport units (12), and a timing belt (1142) wound around the two timing wheels (1141) and the drive wheel (113).

10. The card transport mechanism of claim 8, wherein the drive unit (11) further includes a mounting plate (111) to which the drive motor (112), drive wheel (113) and transmission assembly (114) are mounted.