CN117152884B - Self-adaptive tensioning mechanism - Google Patents
Self-adaptive tensioning mechanism Download PDFInfo
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- CN117152884B CN117152884B CN202311415593.3A CN202311415593A CN117152884B CN 117152884 B CN117152884 B CN 117152884B CN 202311415593 A CN202311415593 A CN 202311415593A CN 117152884 B CN117152884 B CN 117152884B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 62
- 230000000670 limiting effect Effects 0.000 claims description 31
- 239000002184 metal Substances 0.000 claims description 28
- 230000003044 adaptive effect Effects 0.000 claims description 10
- 230000000452 restraining effect Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 230000009194 climbing Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 230000005540 biological transmission Effects 0.000 description 1
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- 229920001971 elastomer Polymers 0.000 description 1
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Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F19/00—Complete banking systems; Coded card-freed arrangements adapted for dispensing or receiving monies or the like and posting such transactions to existing accounts, e.g. automatic teller machines
- G07F19/20—Automatic teller machines [ATMs]
- G07F19/203—Dispensing operations within ATMs
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F19/00—Complete banking systems; Coded card-freed arrangements adapted for dispensing or receiving monies or the like and posting such transactions to existing accounts, e.g. automatic teller machines
- G07F19/20—Automatic teller machines [ATMs]
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F19/00—Complete banking systems; Coded card-freed arrangements adapted for dispensing or receiving monies or the like and posting such transactions to existing accounts, e.g. automatic teller machines
- G07F19/20—Automatic teller machines [ATMs]
- G07F19/201—Accessories of ATMs
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- Physics & Mathematics (AREA)
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Abstract
The application relates to a self-adaptive tensioning mechanism which is arranged on a banknote transporting mechanism of a cash withdrawal machine core and comprises a tensioning shaft, an upper picking torsion spring and a lower pressing torsion spring, wherein the tensioning shaft is arranged below the banknote transporting mechanism; the upper picking torsion spring is arranged on one side of the tensioning shaft far away from the connecting component, the upper picking torsion spring is sleeved on a first limit column on the banknote transporting mechanism frame plate, one end of the upper picking torsion spring is fixedly connected with the frame plate, the other end of the upper picking torsion spring is hooked on the tensioning shaft, and the tendency of upwards picking the tensioning shaft exists; the torsion spring pushes down and sets up in the take-up shaft top, pushes down the torsion spring cover and establishes on the spacing post of second of frame plate, and its one end and frame plate fixed connection, and the other end is pressed and is detained on linking assembly, has the trend of pushing down to linking assembly, cooperates the cooperation through take-up shaft, go up and select the torsion spring and push down the torsion spring three, consumes conveyer belt length surplus under the different fortune paper money states to guarantee that the conveyer belt is in the tensioning state constantly. The utility model discloses a can make the conveyer belt be in tensioning state constantly, satisfy the effect of banknote transport demand.
Description
Technical Field
The present application relates to the field of financial cash devices, and in particular to an adaptive tensioning mechanism.
Background
Automatic teller machines are also known as ATM, and are mostly used for withdrawing money. The device is a highly precise electromechanical integrated device, utilizes a magnetic code card or a smart card to realize self-service of financial transaction, replaces the work of bank counter personnel, can extract cash, inquire balance, carry out the work of transferring funds among accounts and the like, and ensures that the counter pressure of a bank is greatly relieved.
When the existing cash withdrawal equipment is used for discharging cash, the cash enters a cash-supporting platform through a cash inlet, and the cash-supporting platform ascends or descends under the control of a driving motor so as to lift or descend the carried cash to a height matched with a cash conveying mechanism, so that the cash can be stably and smoothly conveyed to the cash outlet through the cash conveying mechanism; because the material of the conveyer belt in the banknote transporting mechanism is not a complete elastomer, the conveyer belt can be plastically stretched and loosened after a period of operation, so that the tension force is reduced, a re-tensioning device is needed for belt transmission to keep normal operation, and a tensioning mode common in financial equipment is generally to add a tensioning wheel and an accessory mechanism thereof, so that the local structure of the equipment is relatively complex, the maintenance is inconvenient, and a certain equipment space is occupied.
Disclosure of Invention
In order to solve the above-mentioned partial or whole technical problem, this application provides a self-adaptation straining device, can make the conveyer belt be in the tensioning state constantly, satisfies the demand that the bank note transported to the structure is retrencied, and space utilization is less, and it is also very convenient to maintain.
The invention provides a self-adaptive tensioning mechanism which is arranged on a banknote transporting mechanism of a cash withdrawal machine core, wherein the banknote transporting mechanism is used for transporting banknotes transported by a banknote supporting platform, and the banknote supporting platform can ascend or descend under the control of a driving motor; the banknote transporting mechanism comprises a plurality of groups of conveying rollers which are arranged side by side along the banknote transporting direction and a conveying belt which is wound on the plurality of groups of conveying rollers and meshed with the plurality of groups of conveying rollers, a connecting assembly is arranged at the position, far away from the banknote outlet, of the inner side of the conveying belt, the connecting assembly can be lifted or pressed down by the banknote supporting platform, and the conveying belt can be lifted or pressed down together with the connecting assembly; the tensioning mechanism comprises a tensioning shaft, an upper-picking torsion spring and a lower-pressing torsion spring, wherein the tensioning shaft is arranged below the banknote transporting mechanism and is positioned at a position close to the connecting assembly, and the length direction of the tensioning shaft is consistent with the conveying roller; the upper picking torsion spring is arranged on one side of the tensioning shaft far away from the connecting component, the upper picking torsion spring is sleeved on a first limit post on a bill conveying mechanism frame plate, one end of the upper picking torsion spring is fixedly connected with the frame plate, the other end of the upper picking torsion spring is hooked on the tensioning shaft, the tensioning shaft is prone to be upwards pulled, and a limit hole for limiting movement of the tensioning shaft is reserved on the frame plate; the torsion spring pushes down the position department that is close to spacing hole in take-up shaft top, pushes down the torsion spring cover and establishes on the spacing post of second of frame plate, its one end and frame plate fixed connection, and the other end is pressed and is detained on linking subassembly, has the trend of pushing down to linking subassembly, cooperates the cooperation through take-up shaft, go up and select the torsion spring and push down the torsion spring three, consumes conveyer belt length surplus under the different fortune paper money states to guarantee that the conveyer belt is in the tensioning state constantly.
Further, the connecting assembly comprises a U-shaped cross frame, a driving shaft penetrating through the U-shaped cross frame, a belt wheel sleeved at the end part of the driving shaft, a plurality of groups of synchronous wheels sleeved at the middle position of the driving shaft and positioned between two wings of the U-shaped cross frame, and the plurality of groups of synchronous wheels are meshed with the conveying belt; the U-shaped cross frame is provided with a protruding part on the outer side, the protruding part is arranged above the driving shaft, the protruding part extends to the outer side of the banknote transporting mechanism frame plate, and the free end of the downward-pressing torsion spring is pressed and buckled on the protruding part; the sheet metal cantilever is arranged on the inner side of the top of the two wings of the U-shaped transverse frame in an extending mode, the overhanging fingers for pressing the sheet metal cantilever are correspondingly arranged at the position, close to the connecting assembly, of the banknote supporting platform, when the banknote supporting platform lifts the connecting assembly, the sheet metal cantilever is pressed on the overhanging fingers all the time, so that climbing gradient of banknotes during banknote feeding is reduced, and layering is avoided.
Further, an arc-shaped track hole for limiting the displacement of the engagement assembly under the action of force is formed in the banknote transporting mechanism frame plate, the bending direction of the arc-shaped track hole is a trend of coating the banknote supporting platform, and the protruding part and the driving shaft penetrate through the arc-shaped track hole and extend out of the banknote transporting mechanism frame plate.
Further, the protruding portion is a short column, two groups of limiting clamping pieces are sleeved at the position, away from the U-shaped transverse frame, of the short column, and limiting grooves for pressing and buckling the free ends of the downward-pressing torsion springs are reserved between the two groups of limiting clamping pieces, so that the limiting grooves play a role in restraining the movement of the free ends of the downward-pressing torsion springs.
Further, two groups of limit cards are sleeved at the position of the tensioning shaft extending out of the banknote transporting mechanism frame plate, and a clamping groove for poking the free end of the upper-picking torsion spring is reserved between the two groups of limit cards, and the clamping groove plays a role in restraining the movement of the free end of the upper-picking torsion spring.
According to the technical scheme, in the self-adaptive tensioning mechanism, the self-adaptive tensioning mechanism is designed by adopting the mode of matching the torsion spring and the tensioning shaft, specifically, the stress balance of the tensioning shaft and the connecting component in different banknote transporting states can be self-adaptively maintained by adopting the mode of matching the upper-picking torsion spring, the lower-pressing torsion spring and the tensioning shaft, and the upper-picking torsion spring and the lower-pressing torsion spring, so that the length allowance of the conveyor belt in different banknote transporting states is consumed, the conveyor belt is in the tensioning state at any time, the conveying requirement of banknotes is met, the structure is simple, the space utilization is small, too much equipment space is not occupied, and the maintenance is convenient.
In addition, the self-adaptive tensioning mechanism has the advantages of easiness in assembly, safety and reliability in use and convenience in implementation, popularization and application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of the installation location of an adaptive tensioning mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic view of the bottom banknote receiving state;
FIG. 3 is a schematic view of a banknote state;
FIG. 4 is a schematic view of a banknote holding platform of the cash dispenser core;
FIG. 5 is a schematic view showing the relationship between a metal plate cantilever and an outward extending arm;
FIG. 6 is a schematic diagram showing the construction of the adapter assembly;
FIG. 7 is a schematic view showing the structure of the tensioning mechanism;
fig. 8 is a schematic view showing the structure of the tensioning shaft;
FIG. 9 is a schematic view showing the construction of the upper pick torsion spring;
fig. 10 is a schematic view showing the structure of the push-down torsion spring.
Reference numerals illustrate: 1. a banknote transporting mechanism; 11. a frame plate; 111. a limiting hole; 112. arc track holes; 12. a first limit post; 13. the second limit column; 2. a banknote supporting platform; 21. a conveying roller; 22. a conveyor belt; 3. a joining assembly; 31. a U-shaped cross frame; 32. a driving shaft; 33. a belt wheel; 34. a synchronizing wheel; 35. a protruding portion; 36. a limiting clamping piece; 37. a limit groove; 38. a sheet metal cantilever; 39. an overhanging finger; 4. a tensioning mechanism; 41. a tensioning shaft; 42. a torsion spring is lifted up; 43. pressing down the torsion spring; 44. a limit card; 45. a clamping groove.
Detailed Description
The present application is described in further detail below in conjunction with fig. 1-10.
As shown in fig. 1-10, embodiments of the present invention provide an adaptive tensioning mechanism. The self-adaptive tensioning mechanism is arranged on a banknote transporting mechanism 1 of the cash dispenser core, the banknote transporting mechanism 1 is used for transporting banknotes transported by a banknote supporting platform 2, the banknote supporting platform 2 has the main function of bearing the banknotes entering through a banknote inlet, and the banknote supporting platform 2 can ascend or descend under the control of a driving motor; specifically, the banknote transporting mechanism 1 comprises a plurality of groups of conveying rollers 21 which are arranged side by side along the banknote conveying direction and a plurality of groups of conveying belts 22 which are wound on the plurality of groups of conveying rollers 21 and meshed with the plurality of groups of conveying rollers 21, the inner side of the conveying belt 22 is provided with a connecting component 3 at a position far away from the banknote outlet, the connecting component 3 can be lifted or pressed down by the banknote supporting platform 2, and the conveying belt 22 can also be lifted or pressed down along with the connecting component 3.
As shown in fig. 1-10, the tensioning mechanism 4 comprises a tensioning shaft 41, an upward-picking torsion spring 42 and a downward-pressing torsion spring 43, wherein the tensioning shaft 41 is arranged below the banknote transporting mechanism 1 and is positioned at a position close to the connecting component 3, the length direction of the tensioning shaft 41 is consistent with the conveying roller 21, and an arrow at A in fig. 1 indicates the banknote outlet direction;
the upper picking torsion spring 42 is arranged on one side of the tensioning shaft 41 away from the connecting component 3, the upper picking torsion spring 42 is sleeved on the first limiting column 12 on the frame plate 11 of the banknote transporting mechanism 1, one end of the upper picking torsion spring 42 is fixedly connected with the frame plate 11, the other end of the upper picking torsion spring is hooked on the tensioning shaft 41, the tensioning shaft 41 has a tendency of upwards picking, a limiting hole 111 for limiting the movement of the tensioning shaft 41 is reserved on the frame plate 11, in addition, two groups of limiting cards 44 are sleeved at the position, extending out of the frame plate 11 of the banknote transporting mechanism 1, of the tensioning shaft 41, a clamping groove 45 for picking the free end of the upper picking torsion spring 42 is reserved between the two groups of limiting cards 44, and the clamping groove 45 has a limiting effect on the movement of the free end of the upper picking torsion spring 42;
the lower-pressure torsion spring 43 is arranged at a position above the tensioning shaft 41 and close to the limiting hole 111, the lower-pressure torsion spring 43 is sleeved on the second limiting column 13 of the frame plate 11, one end of the lower-pressure torsion spring 43 is fixedly connected with the frame plate 11, the other end of the lower-pressure torsion spring is pressed and buckled on the connecting component 3, the connecting component 3 has a downward pressing trend, and the length allowance of the conveyor belt 22 in different banknote transporting states is consumed through the cooperation of the tensioning shaft 41, the upper-picking torsion spring 42 and the lower-pressure torsion spring 43, so that the conveyor belt 22 is in a tensioning state at any time. Here, the following description will be made on different banknote transporting states, in this example, the banknote transporting states are three types, namely, a bottom banknote receiving state (as shown in fig. 2), a banknote transporting state (as shown in fig. 3), and a plurality of banknote transporting states (as shown in fig. 1), and the different banknote transporting states correspond to different heights of lifting or lowering of the banknote supporting platform 2.
According to the self-adaptive tensioning mechanism provided by the embodiment of the invention, by adopting the mode that the upper-picking torsion spring 42, the lower-pressing torsion spring 43 and the tensioning shaft 41 are cooperatively matched, the upper-picking torsion spring 42 and the lower-pressing torsion spring 43 can self-adaptively maintain the stress balance of the tensioning shaft 41 and the connecting component 3 in different banknote conveying states, and the length allowance of the conveyor belt 22 in different banknote conveying states is consumed, so that the conveyor belt 22 is in a tensioning state at any time, the banknote conveying requirement is met, the structure is simplified, the space utilization is small, too much equipment space is not occupied, and the maintenance is also convenient.
As shown in fig. 2 to 7, the connection assembly 3 includes a U-shaped cross frame 31, a driving shaft 32 penetrating through the U-shaped cross frame 31, a belt pulley 33 sleeved at the end of the driving shaft 32, a plurality of groups of synchronizing wheels 34 sleeved at the middle position of the driving shaft 32 and located between two wings of the U-shaped cross frame 31, and the plurality of groups of synchronizing wheels 34 are meshed with the conveyor belt 22; the outside of the U-shaped transverse frame 31 is provided with a protruding part 35, the protruding part 35 is arranged above the driving shaft 32, the protruding part 35 extends to the outside of the frame plate 11 of the banknote transporting mechanism 1, the free end of the downward-pressing torsion spring 43 is pressed and buckled on the protruding part 35, the protruding part 35 is a short column, two groups of limiting clamping pieces 36 are sleeved at the position of the short column far away from the U-shaped transverse frame 31, a limiting groove 37 for pressing and buckling the free end of the downward-pressing torsion spring 43 is reserved between the two groups of limiting clamping pieces 36, and the limiting groove 37 plays a role in restraining the movement of the free end of the downward-pressing torsion spring 43; the sheet metal cantilever 38 is arranged on the inner sides of the tops of the two wings of the U-shaped transverse frame 31 in an extending mode, the overhanging fingers 39 for pressing the sheet metal cantilever 38 are correspondingly arranged at the position, close to the connecting assembly 3, of the banknote supporting platform 2, when the banknote supporting platform 2 lifts the connecting assembly 3, the sheet metal cantilever 38 is always pressed on the overhanging fingers 39, so that climbing gradient of banknotes in banknote feeding is reduced, and layering is avoided.
In addition, the frame plate 11 of the banknote transporting mechanism 1 is provided with an arc-shaped track hole 112 for limiting the displacement of the connecting assembly 3 under the action of stress, the bending direction of the arc-shaped track hole 112 is a trend of coating the banknote supporting platform 2, and the short column and the driving shaft 32 penetrate through the arc-shaped track hole 112 and extend out of the frame plate 11 of the banknote transporting mechanism 1.
Note that, the banknote carrying state corresponding to the banknote carrying platform 2 lifting engagement assembly 3 is a banknote carrying state (as shown in fig. 3) and a plurality of banknote carrying states (as shown in fig. 1), and in the banknote carrying state, the sheet metal cantilever 38 is always pressed on the overhanging finger 39, i.e. the two are always contacted and stressed; under the state that a plurality of paper money send paper money, can exist two kinds of situations, first: the metal plate cantilever 38 is pressed onto the overhanging finger 39, and the second type is that: the overhanging finger 39 breaks away from the metal plate cantilever 38 and is pressed on the driving shaft 32; when the metal plate cantilever 38 is pressed on the overhanging finger 39, the overhanging finger 39 moves upwards to lift the connecting component 3, and when the overhanging finger 39 is pressed on the driving shaft 32, the overhanging finger 39 moves downwards to drop the connecting component 3, so that the concrete analysis is that:
when the state of transporting a plurality of paper money (assuming 100 paper money) is switched to the state of transporting one paper money (1 paper money), the overhanging finger 39 lifts the metal plate cantilever 38 to meet the adaptive height when one paper money is transported; when a banknote feeding state (1 banknote) is switched to a banknote transporting state (assuming 100 banknotes) of at most Zhang Chao, the banknote supporting platform 2 descends, the engagement assembly 3 is forced to descend, at this time, the force exerted by the engagement assembly 3 and forced to descend is derived from the downward force exerted by the banknote supporting platform 2 on the engagement assembly 3, the force comprises the driving force exerted by the driving motor on the banknote supporting platform 2 and the gravity of the banknote supporting platform 2, specifically, during the descending process of the banknote supporting platform 2, the overhanging finger 39 and the sheet metal cantilever 38 are separated and not contacted, namely, the contact stress state is switched to the non-contact stress state, the overhanging finger 39 is pressed on the driving shaft 32 of the engagement assembly 3 along with the descending of the banknote supporting platform 2, the state shown in fig. 7 is that the overhanging finger 39 is pressed on the driving shaft 32 (the special description is needed, the switching process is very short, the distance S between the sheet metal cantilever 38 and the driving shaft 32 and the driving speed of the driving motor are mainly influenced when the sheet metal cantilever 38 is used, wherein S is also the stroke of the overhanging finger 39 when the sheet metal cantilever 38 is contacted with the driving shaft 32, in practical application, the distance S between the sheet metal cantilever 38 and the driving shaft 32 is designed to be very close, and the driving speed of the driving motor is also very fast and manually adjustable, so that the overhanging finger 39 is not contacted with the sheet metal cantilever 38 in a very short time as long as the overhanging finger 39 is separated from the sheet metal cantilever 38, the overhanging finger is switched into contact with the driving shaft 32, the engaging assembly 3 is driven by the driving shaft 32 to descend along with the banknote supporting platform 2 to an adaptive height when the banknote supporting platform 2 is in a plurality of banknote carrying states, if the banknote supporting platform 2 is continuously descended, the banknote supporting platform is finally descended to an initial bottom banknote receiving state (shown in figure 2), when the bottom receives the banknote, the stress between the banknote supporting platform 2 and the engagement assembly 3 is balanced, but the banknote supporting platform 2 is in an ideal state, and in the practical application design, the downward acting force of the banknote supporting platform 2 is larger than the reaction force of the engagement assembly 3, so that the banknote supporting platform 2 can press the engagement assembly 3, but cannot be too large, and the structural stress of the engagement assembly 3 is reduced.
It should be further noted that, when the banknote transporting mechanism 1 is in a banknote transporting state or a banknote transporting state, if the force of the upper picking torsion spring 42 is far greater than the force of the lower pressing torsion spring 43, the lower pressing torsion spring 43 cannot press the sheet metal cantilever 38 on the overhanging finger 39, so that the banknote transporting gradient is large, and a layering phenomenon is formed, so that the banknote transporting fails, and therefore, a certain coupling relationship exists between the upper picking torsion spring 42 and the lower pressing torsion spring 43, which is specifically as follows:
the joint assembly 3, the conveyor belt 22 and the tensioning mechanism 4 are regarded as a local micro-system, and the local micro-system is subjected to overall stress analysis. When in the pressing state, the local system is mainly stressed by gravityForce of the downward-pressing torsion spring->Force of upward-overhanging torsion spring->Overhanging means supporting force->. Overhanging means support force->Pressing force with the sheet metal cantilever>Is a pair of acting force and reacting force, which are equal. Sheet metal cantilever pressing force->The function of the utility model is to press the metal plate cantilever 38 on the overhanging finger 39, and the smaller the better the function is, the lower the structural stress of the banknote supporting platform 2 is.
I.e. +.>
So thatIs greater than->Thereby ensuring that the lower conveyor belt 22 is tensioned at all times; but not too large to prevent the sheet metal cantilever 38 from being pressed down.
The torsion spring force can be calculated as follows:
wherein E: modulus of elasticity, d: the diameter of the wire is equal to the diameter of the wire,: torsion angle, n: effective turns, D: pitch diameter, L: torsion arm length. Taking the result as theoretical calculation, then performing proofing, and searching for an optimal value.
As can be seen from the foregoing, in the self-adaptive tensioning mechanism according to the embodiment of the present invention, by adopting the cooperative cooperation mode of the upper-arm torsion spring 42, the lower-pressing torsion spring 43 and the tensioning shaft 41, the upper-arm torsion spring 42 and the lower-pressing torsion spring 43 can self-adaptively maintain the stress balance of the tensioning shaft 41 and the linking assembly 3 in different banknote transporting states, and the length allowance of the conveyor belt 22 in different banknote transporting states is consumed, so that the conveyor belt 22 is in the tensioning state at all times, thereby meeting the requirements of banknote transporting, and the self-adaptive tensioning mechanism has the advantages of simple structure, small space utilization, no occupation of much equipment space, and convenient maintenance.
In the description of the present application, it should be understood that the terms "vertical," "horizontal," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is two or more unless specifically defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (5)
1. An adaptive tensioning mechanism (4) is arranged on a cash conveying mechanism (1) of a cash withdrawal machine core, and is characterized in that: the banknote transporting mechanism (1) is used for transporting banknotes transported by the banknote supporting platform (2), and the banknote supporting platform (2) can ascend or descend under the control of the driving motor; the banknote transporting mechanism (1) comprises a plurality of groups of conveying rollers (21) which are arranged side by side along the banknote transporting direction and a plurality of groups of conveying belts (22) which are wound on the plurality of groups of conveying rollers (21) and meshed with the plurality of groups of conveying rollers (21), a connecting component (3) is arranged at the position, far away from the banknote outlet, of the inner side of the conveying belt (22), the connecting component (3) can be lifted or pressed down by the banknote supporting platform (2), and the connected conveying belt (22) can be lifted or pressed down together with the connecting component (3); the tensioning mechanism (4) comprises a tensioning shaft (41), an upper-picking torsion spring (42) and a lower-pressing torsion spring (43), wherein the tensioning shaft (41) is arranged below the banknote transporting mechanism (1) and is positioned at a position close to the connecting component (3), and the length direction of the tensioning shaft (41) is consistent with the length direction of the conveying roller (21); the upper picking torsion spring (42) is arranged on one side of the tensioning shaft (41) far away from the connecting component (3), the upper picking torsion spring (42) is sleeved on a first limit column (12) on a frame plate (11) of the banknote transporting mechanism (1), one end of the upper picking torsion spring is fixedly connected with the frame plate (11), the other end of the upper picking torsion spring is hooked on the tensioning shaft (41), the tensioning shaft (41) has a tendency of upwards picking, and a limit hole (111) for limiting the movement of the tensioning shaft (41) is reserved on the frame plate (11); the lower-pressing torsion spring (43) is arranged at the position, close to the limiting hole (111), above the tensioning shaft (41), the lower-pressing torsion spring (43) is sleeved on the second limiting column (13) of the frame plate (11), one end of the lower-pressing torsion spring is fixedly connected with the frame plate (11), the other end of the lower-pressing torsion spring is pressed and buckled on the connecting component (3), the connecting component (3) is prone to being pressed downwards, and the lower-pressing torsion spring (42) and the lower-pressing torsion spring (43) are cooperatively matched through the tensioning shaft (41) to consume the length allowance of the conveyor belt (22) in different banknote conveying states so as to ensure that the conveyor belt (22) is in a tensioning state at any time.
2. The adaptive tensioning mechanism of claim 1, wherein: the connecting assembly (3) comprises a U-shaped transverse frame (31), a driving shaft (32) penetrating through the U-shaped transverse frame (31), a belt wheel (33) sleeved at the end part of the driving shaft (32), a plurality of groups of synchronous wheels (34) sleeved at the middle position of the driving shaft (32) and positioned between two wings of the U-shaped transverse frame (31), and the plurality of groups of synchronous wheels (34) are meshed with the conveying belt (22); the outside of the U-shaped cross frame (31) is provided with a protruding part (35), the protruding part (35) is arranged above the driving shaft (32), the protruding part (35) extends to the outside of the frame plate (11) of the banknote transporting mechanism (1), and the free end of the downward-pressing torsion spring (43) is pressed and buckled on the protruding part (35); the sheet metal cantilever (38) is arranged on the inner sides of the tops of the two wings of the U-shaped transverse frame (31) in an extending mode, overhanging fingers (39) for pressing the sheet metal cantilever (38) are correspondingly arranged at positions, close to the connecting assembly (3), of the banknote supporting platform (2), when the banknote supporting platform (2) lifts the connecting assembly (3), the sheet metal cantilever (38) is pressed on the overhanging fingers (39) all the time, so that climbing gradient of banknotes in banknote feeding is reduced, and layering is avoided.
3. The adaptive tensioning mechanism of claim 2, wherein: the cash handling mechanism is characterized in that an arc track hole (112) for limiting displacement of the connecting assembly (3) under the action of stress is formed in the frame plate (11) of the cash handling mechanism (1), the bending direction of the arc track hole (112) is a trend of coating the cash handling platform (2), and the protruding part (35) and the driving shaft (32) penetrate through the arc track hole (112) and extend out of the frame plate (11) of the cash handling mechanism (1).
4. An adaptive tensioning mechanism as defined in claim 3, wherein: the protruding portion (35) is a short column, two groups of limiting clamping pieces (36) are sleeved at the position, away from the U-shaped transverse frame (31), of the short column, limiting grooves (37) for pressing and buckling the free ends of the downward-pressing torsion springs (43) are reserved between the two groups of limiting clamping pieces (36), and the limiting grooves (37) play a role in restraining the movement of the free ends of the downward-pressing torsion springs (43).
5. The adaptive tensioning mechanism of claim 4, wherein: two groups of limit cards (44) are sleeved at the position of the tensioning shaft (41) extending out of the frame plate (11) of the banknote transporting mechanism (1), a clamping groove (45) for poking the free end of the upper-picking torsion spring (42) is reserved between the two groups of limit cards (44), and the clamping groove (45) plays a constraint role in the movement of the free end of the upper-picking torsion spring (42).
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| CN202311415593.3A CN117152884B (en) | 2023-10-30 | 2023-10-30 | Self-adaptive tensioning mechanism |
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| CN117152884B true CN117152884B (en) | 2024-01-30 |
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| CN117152884A (en) | 2023-12-01 |
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