Card discharging mechanism capable of smoothly discharging blank cards in card bin

Abstract

The utility model relates to a card discharging mechanism which can generate periodic flutter force on a plurality of blank cards in a card bin and can enable the blank cards in the card bin to be smoothly discharged from the bin. Comprising a card bin composed of a left clamping plate and a right clamping plate, a plurality of cards to be printed are placed in the card bin, a rubber roller through hole is formed in a base plate for bearing the cards in the card bin, and a card driving rubber roller capable of rolling the bottommost layer of cards to move forwards is arranged in the rubber roller through hole. And a vibration mechanism which periodically generates chatter force from bottom to top on the cards in the card bin is arranged on the substrate on the front side or the rear side of the card driving rubber roller. The vibration mechanism is arranged in the card bin, so that the power load of the card driving rubber roller for driving the bottommost layer of the card bin to move out of the card bin can be effectively reduced, and the phenomenon that the card is damaged when the bottommost layer of the card is driven can be effectively avoided. Due to the fact that adjacent cards are tightly combined, certain or some cards on the penultimate layer, the third layer and the like of the bottom of the card bin are brought out, and the failure of normal printing is caused.

Description

Technical Field

[0001] The utility model relates to a card printer, in particular to a card discharging mechanism which can smoothly discharging a card placed in a card bin. Background Art

[0002] The card printer in the prior art includes a card bin for placing cards to be printed, and a plurality of blank cards to be printed are placed in the card bin in a stacked manner. The card bin is provided with a left clamping plate and a right clamping plate, and the left clamping plate and the right clamping plate can move toward or away from each other under the drive of a driving component, so as to adjust the distance between the left clamping plate and the right clamping plate to a state slightly larger than the width of the card, thereby limiting the card laterally. Before printing, a driving rubber roller arranged on a substrate for supporting the card at the bottom of the card bin and driving the card to move forward (the direction of the print head is forward) rolls the card at the bottom and pushes the card out of the card bin.

[0003] The above printer has the following problems in the process of blank card output:

[0004] 1. When each card is produced, due to the cutting process, the neatness of its edges is not particularly ideal, and there will be some burrs. When several such cards are stacked together, the burrs on the edges of the two adjacent cards will increase the friction between the cards and increase the resistance to card ejection, which can easily lead to unsmooth card ejection and uneven card ejection speed.

[0005] 2. When several cards are stacked together, since the cards are basically made of plastic, even if they are made of metal sheets, a layer of plastic film will be attached to the surface. In this way, when two adjacent cards move relative to each other, static electricity will be generated between them, increasing the adsorption force between them and increasing the resistance to card output. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a card discharging mechanism which can generate periodic vibration force on a plurality of blank cards in a card bin and enable the blank cards in the card bin to be smoothly discharged.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] The utility model discloses a card discharging mechanism which can make blank cards in a card bin be discharged smoothly, comprising a card bin composed of a left clamping plate and a right clamping plate, wherein a plurality of cards to be printed are placed in the card bin in a stacked manner, a rubber roller through hole is provided on a base plate for supporting the cards in the card bin, a card driving rubber roller which can roll the bottom layer of cards forward is provided in the rubber roller through hole, and the utility model is characterized in that a vibration mechanism which periodically generates a flutter force from bottom to top on the cards in the card bin is provided on the base plate located in front of or behind the card driving rubber roller.

[0009] The vibration mechanism is a cam rubber roller, which is parallel to the card driving rubber roller, and the power input end of the cam rubber roller is connected to the output end of the stepping motor arranged on the frame of the printer.

[0010] The radial cross-section of the raised portion of the cam rubber roller is in the shape of a semi-ellipse, a semi-circle, a half-sector, or a half-rectangle inverted into an arc angle.

[0011] The vibration mechanism is a linear vibration motor installed on the frame of the printer and located below the card bin. The vibration output end of the linear vibration motor can touch the cards in the card bin from bottom to top.

[0012] The roller surface of the card-driving rubber roller is a knurled surface composed of a plurality of straight lines spaced apart along the circumferential direction.

[0013] The left clamping plate or the right clamping plate is provided with a locking mechanism which can lock the clamping plate on the frame.

[0014] The utility model provides a vibration mechanism in the card bin of the card printer, which can effectively reduce the power load of the card driving rubber roller that drives the bottom layer of cards in the card bin to move out of the card bin, and can also effectively avoid that when the bottom layer of cards is driven, one or some cards in the second to last layer, the third layer, etc. at the bottom of the card bin are brought out due to the tight combination between adjacent cards, resulting in a malfunction of abnormal printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the card bin of the present invention (only the right clamping plate is shown).

[0016] Figure 2 for Figure 1 Schematic diagram showing the card drive roller and cam roller separated from the frame.

[0017] Figure 3 for Figure 1 Schematic diagram after removing the base plate (the card-driving rubber roller is a cylindrical surface).

[0018] Figure 4 for Figure 1 Schematic diagram after the base plate is removed (the card-driving rubber roller has a knurled surface).

[0019] Figure 5 It is a schematic diagram of the utility model with a left clamping plate, a right clamping plate and a locking mechanism.

[0020] The reference numerals are as follows:

[0021] Card bin 1, left clamping plate 11, right clamping plate 12, base plate 13, card driving rubber roller 2 、The rubber roller through hole 21 , the cylindrical surface 22 , the knurled surface 23 , the cam rubber roller 3 , the cam through hole 31 , the main body 32 , the raised portion 33 , the locking mechanism 4 , the positioning plate 41 , the positioning bolt 42 , and the positioning groove 43 . DETAILED DESCRIPTION

[0022] like Figure 1-5 As shown, the card ejection mechanism of the utility model which can make the blank cards in the card bin 1 eject smoothly is to set a vibration mechanism in the card bin 1 where blank cards (i.e. cards waiting to be printed, hereinafter also referred to as cards) are placed, and the vibration mechanism can periodically generate an upward vibration force (which can be an upward shaking, an upward vibration or an upward lifting force, and when the force disappears, the cards fall due to weightlessness) to a plurality of blank cards, so as to loosen the space between two adjacent blank cards which are in close contact with each other, so that the card driving rubber roller 2 which drives the bottom blank card forward can easily move the bottom blank card in the card bin 1 out of the card bin 1.

[0023] 1. Card compartment 1

[0024] Located at the front end of the card printer (this end is called the rear), it is a compartment for storing several blank cards. After the blank cards in the compartment are taken out of the compartment, they are printed with content by the print head and then moved out of the printer through the card outlet at the rear end of the printer (this end is called the front).

[0025] The card bin 1 includes a left clamping plate 11, a right clamping plate 12 and a base plate 13 for supporting cards. The left clamping plate 11 and the right clamping plate 12 can move toward or away from each other under the drive of a driving mechanism. Usually, when a plurality of blank cards are stacked in the card bin 1, the distance between the left clamping plate 11 and the right clamping plate 12 is adjusted so that the left clamping plate 11 and the right clamping plate 12 center the plurality of blank cards (that is, the cards are symmetrically placed in the card bin 1 with the card conveying channel as the axis), and the blank cards are restricted from displacement in the lateral direction.

[0026] 2. Drive card rubber roller 2

[0027] A long strip of rubber roller through hole 21 is provided on the base plate 13 within the card bin 1, and the card-driving rubber roller 2 is arranged in the rubber roller through hole 21. A small portion of the top roller surface of the card-driving rubber roller 2 is exposed above the base plate 13 and contacts with the bottom layer of blank cards in the card bin 1. Under the action of rolling friction, the rotating card-driving rubber roller 2 causes the bottom layer of blank cards in the card bin 1 to move forward.

[0028] The roller surface of the card-driving rubber roller 2 can be a cylindrical surface 22 or a knurled surface 23 composed of a plurality of straight lines spaced apart along the circumferential direction. The friction coefficient between the knurled surface 23 and the bottom blank card is greater than that between the cylindrical surface 22 and the bottom blank card. Therefore, under the same conditions, the driving force generated by the knurled surface 23 is greater.

[0029] The card-driving rubber roller 2 is connected to a driving device arranged on the frame through a transmission mechanism, thereby obtaining a driving force.

[0030] 3. Vibration mechanism

[0031] The utility model preferably uses the following two methods:

[0032] 1) Cam rubber roller 3

[0033] A long strip cam through hole 31 is provided on the base plate 13 within the range of the card bin 1, and the cam rubber roller 3 is provided in the cam through hole 31. The cam rubber roller 3 can be provided at the front side of the card driving rubber roller 2 or at the rear side of the card driving rubber roller 2, and is provided in parallel with the card driving rubber roller 2. The cam rubber roller 3 is connected to a driving component (which can be a common motor or a stepping motor) provided on the frame through a transmission mechanism, and the driving component can be provided separately or can be a driving device used by the card driving rubber roller 2.

[0034] The radial cross-sectional shape of the cam rubber roller 3 is composed of the semicircular shape of the main body 32 and the surface shape of the raised portion 33. The shape of the raised portion 33 is a semi-elliptical surface, a semi-circular surface (the radius is slightly larger than the radius of the main body 32), a half-sector surface or a half-rectangular surface with an inverted arc angle.

[0035] When the raised portion 33 on the cam rubber roller 3 is rotated to the position of the cam through hole 31, the roller surface of the raised portion 33 is exposed on the substrate 13, and the raised portion 33 can lift up the blank card placed in the card compartment 1. Thereafter, as the raised portion 33 continues to rotate to below the cam through hole 31, the main body 32 is at the position of the cam through hole 31, and the height difference between the roller surface of the raised portion 33 and the upper surface of the substrate 13 is larger than the height difference between the roller surface of the main body 32 and the upper surface of the substrate 13. Therefore, the blank card falls quickly after losing the support of the raised portion 33, thereby loosening the contact and matching state between the blank cards and causing relative displacement. In this way, the electrostatic adsorption force generated between adjacent cards can be reduced or the relative positions between the card edges of adjacent cards can be changed.

[0036] 2) Vibration motor

[0037] The vibration mechanism is a linear vibration motor installed on the frame of the printer and located below the card compartment 1, and the vibration output end of the linear vibration motor is arranged below the position of the cam through hole 31. The vibration output end of the linear vibration motor can touch the card in the card compartment 1 from bottom to top through the cam through hole 31.

[0038] The vibration motor is turned on or off by receiving a control signal from the printer's main control circuit.

[0039] 4. Locking mechanism 4

[0040] like Figure 5 As shown, a locking mechanism 4 is provided on the left clamping plate 11 or the right clamping plate 12 to lock the clamping plate on the frame. After the vibration mechanism takes effect, it can still ensure that several blank cards placed in the card compartment 1 are always centered.

[0041] The locking structure is arranged on the outer side of the rear end of the left clamping plate 11 or the right clamping plate 12 . The locking structure of the utility model is preferably arranged on the outer side of the rear end of the left clamping plate 11 .

[0042] It includes a positioning plate 41, a positioning nut and a positioning bolt 42. The positioning plate 41 is arranged at the rear end of the left clamping plate 11 and extends horizontally outward, and the rear end of the positioning plate 41 protrudes backward from the rear end edge of the left clamping plate 11. A positioning hole is arranged at the rear end of the positioning plate 41, and a positioning groove 43 is arranged on the base plate 13. The positioning bolt 42 passes through the positioning hole and the positioning groove 43 and is locked with the positioning nut below the base plate 13, so that the left clamping plate 11 can be fixed on the base plate 13.

Claims

1. A card discharging mechanism capable of smoothly discharging blank cards from a card bin, comprising a card bin (1) composed of a left clamping plate (11) and a right clamping plate (12), wherein a plurality of cards to be printed are placed in a stacked manner in the card bin (1), a rubber roller through hole (21) is provided on a base plate (13) supporting the cards in the card bin (1), a card driving rubber roller (2) is provided in the rubber roller through hole (21) for rolling the bottom layer of cards forward, and characterized in that: A vibration mechanism for periodically generating a vibration force from bottom to top on the cards in the card bin (1) is provided on a base plate (13) located on the front side or the rear side of the card driving rubber roller (2).

2. The card discharging mechanism capable of smoothly discharging blank cards from a card bin according to claim 1, characterized in that: The vibration mechanism is a cam rubber roller (3), which is parallel to the card driving rubber roller (2), and its power input end is connected to the output end of a stepping motor arranged on the frame of the printer.

3. The card discharging mechanism capable of smoothly discharging blank cards from a card bin according to claim 2, characterized in that: The radial cross-sectional shape of the raised portion (33) of the cam rubber roller (3) is semi-elliptical, semi-circular, half-sector-shaped, or half-rectangular with an inverted circular arc angle.

4. The card discharging mechanism capable of smoothly discharging blank cards from a card bin according to claim 1, characterized in that: The vibration mechanism is a linear vibration motor installed on the frame of the printer and located below the card bin (1); the vibration output end of the linear vibration motor can touch the card in the card bin (1) from bottom to top.

5. The card discharging mechanism capable of smoothly discharging blank cards from a card bin according to claim 3 or 4, characterized in that: The roller surface of the card-driving rubber roller (2) is a knurled surface (23) composed of a plurality of straight lines arranged at intervals along the circumferential direction.

6. The card discharging mechanism capable of smoothly discharging blank cards from a card bin according to claim 5, characterized in that: A locking mechanism (4) capable of locking the left clamping plate (11) or the right clamping plate (12) on the frame is provided.

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