Card feeding device and printing equipment

Abstract

The utility model relates to the technical field of printing equipment, in particular to a card feeding device and printing equipment. The to-be-printed pieces are loaded through the stock bin mechanism so that the conveying mechanism can continuously convey the to-be-printed pieces. In the process that the conveying mechanism conveys the to-be-printed pieces to the outside of the stock bin mechanism, the to-be-printed pieces in the stock bin mechanism are blocked through the blocking piece, and the situation that excessive to-be-printed pieces in the stock bin mechanism are conveyed to the outside of the stock bin mechanism in the process that the conveying mechanism conveys the to-be-printed pieces is avoided; therefore, the number of the to-be-printed pieces conveyed out of the stock bin mechanism by the conveying mechanism at a time is controlled. After the conveying mechanism conveys the to-be-printed piece out of the material bin mechanism, the to-be-printed piece can be printed through the printing device. In this way, automatic feeding is carried out on the card printing equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printing equipment, in particular to a card feeding device and a printing equipment. BACKGROUND

[0002] With the development of science and technology, the updating speed of printing equipment is also getting faster and faster. In order to meet different types of printing needs, the subdivision field of printing equipment is also more and more diversified. The card printing equipment as a subdivision field of printing equipment is mainly used for printing special printed matter such as certificates and cards.

[0003] Because the printing substrate of the card is relatively hard, the automatic feeding of the card printing equipment is relatively difficult, and thus it is often necessary to manually feed and discharge, which not only reduces the efficiency, but also increases the labor intensity of the workers.

[0004] Therefore, how to automatically feed the card printing equipment is a technical problem to be solved. Practical new type content

[0005] The card feeding device and the printing equipment provided by the present application aim to solve the technical problem of how to automatically feed the card printing equipment in the prior art.

[0006] The card feeding device provided by the present application comprises:

[0007] A hopper mechanism, wherein the hopper mechanism is used for loading a printed matter to be printed;

[0008] A conveying mechanism, wherein the conveying mechanism partially extends into the hopper mechanism, and the conveying mechanism is used for conveying the printed matter to be printed outside the hopper mechanism;

[0009] The hopper mechanism is provided with a blocking piece, and the blocking piece is used for blocking the printed matter to be printed in the hopper mechanism, so that the number of the printed matter to be printed conveyed outside the hopper mechanism by the conveying mechanism at a time meets the expectation.

[0010] Optionally, the printing area of the conveying mechanism is provided with a protection piece, and the protection piece is used for preventing ink pollution of the conveying mechanism during printing.

[0011] Optionally, the size of the protection piece in the conveying direction of the conveying mechanism is a, the size of the printing area in the conveying direction of the conveying mechanism is b, and the size of the printed matter to be printed in the conveying direction of the conveying mechanism is c, and b < a < c.

[0012] Optionally, the conveying mechanism comprises a belt conveying device, and the belt conveying device is used for conveying at least the printed matter to be printed in the printing area.

[0013] The belt conveying device comprises:

[0014] a conveying belt for carrying and driving the to-be-printed piece to move;

[0015] a conveying driving device for driving the conveying belt to run;

[0016] a guide roller arranged outside the conveying surface of the conveying belt, the guide roller being used for offsetting the conveying belt to the inner side of the belt conveying device;

[0017] wherein the guard is arranged outside the guide roller, the guard at least shielding the printing area of the belt conveying device, the height of the guard being lower than the height of the conveying surface of the conveying belt.

[0018] Optionally, the number of the guide rollers is at least two, wherein at least two of the guide rollers are arranged on the two sides of the guard respectively.

[0019] Optionally, the side of the guard away from the conveying belt is provided with a receiving part, the receiving part being protruded from the guard.

[0020] wherein when the to-be-printed piece passes through the guard, the receiving part receives the to-be-printed piece to reduce the contact area between the to-be-printed piece and the guard.

[0021] Optionally, the belt conveying device further comprises:

[0022] a limiting roller arranged outside the conveying surface of the conveying belt, the distance between the limiting roller and the conveying surface of the conveying belt being greater than the thickness of the to-be-printed piece, the limiting roller being used for limiting the to-be-printed piece on the conveying belt.

[0023] Optionally, the distance between the blocking piece and the conveying mechanism is adjustable.

[0024] Optionally, the hopper mechanism further comprises a guide device, the guide device comprising:

[0025] a guide piece for guiding the to-be-printed piece in the hopper mechanism;

[0026] a limiting piece for limiting the to-be-printed piece in the hopper mechanism, the to-be-printed piece in the hopper mechanism being located between the guide piece and the limiting piece;

[0027] an adjusting mechanism for adjusting the distance between the guide piece and the limiting piece.

[0028] In another aspect, the present application also provides a printing device, comprising:

[0029] The above-mentioned certificate feeding device is used for conveying the to-be-printed pieces.

[0030] The printing device is arranged above the conveying mechanism and is used for printing the to-be-printed pieces.

[0031] The present application has the following beneficial effects: The to-be-printed pieces are loaded by the hopper mechanism, so that the conveying mechanism can continuously convey the to-be-printed pieces. During the conveying of the to-be-printed pieces out of the hopper mechanism, the to-be-printed pieces in the hopper mechanism are blocked by the blocking piece, so that the conveying mechanism does not convey too many to-be-printed pieces out of the hopper mechanism during the conveying of the to-be-printed pieces, thereby controlling the number of to-be-printed pieces conveyed out of the hopper mechanism by the conveying mechanism at a time. After the to-be-printed pieces are conveyed out of the hopper mechanism, the to-be-printed pieces can be printed by the printing device. In this way, the certificate printing device is automatically fed. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a perspective structural schematic view of the certificate feeding device in the embodiment of the present application;

[0033] Figure 2 is a sectional view of the certificate feeding device in the embodiment of the present application;

[0034] Figure 3 is an enlarged view of position A in the embodiment of the present application; Figure 2

[0035] Figure 4 is an enlarged view of position B in the embodiment of the present application. Figure 2

[0036] Main unit symbol explanation:

[0037] 10, certificate feeding device; 20, hopper mechanism; 21, blocking piece; 22, guiding device; 23, guiding piece; 24, limiting piece; 25, adjusting mechanism; 30, conveying mechanism; 31, belt conveying device; 32, conveying belt; 33, conveying driving device; 34, guiding roller; 35, limiting roller; 36, protection piece; 37, receiving part; 40, to-be-printed piece. DETAILED DESCRIPTION

[0038] ​​In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples. The examples of the examples are shown in the drawings, wherein the same or similar reference numerals represent the same or similar units or units with the same or similar functions throughout. The examples described below by reference to the drawings are exemplary and are only used to explain the utility model and cannot be understood as limiting the utility model. In addition, it should be understood that the specific examples described herein are only used to explain the utility model and cannot be used to limit the utility model.

[0039] In the description of the utility model, it should be understood that the terms "length", "width", "upper", "lower", "left", "right", "horizontal", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or units referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as limiting the utility model.

[0040] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0041] In the description of the utility model, it should be noted that unless otherwise specifically specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication or interaction relationship between two units. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0042] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include the first and second features in direct contact, or the first and second features not in direct contact but in contact through another feature between them. Moreover, the first feature is "on", "above" and "on the surface" of the second feature, which includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature is "under", "below" and "under" the second feature, which includes the first feature directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0043] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0044] In some embodiments of the present application, the present application provides a printing device, comprising: a card feeding device 10 and a printing device. The card feeding device 10 is used to convey the to-be-printed object 40. The printing device is arranged above the conveying mechanism 30, and the printing device is used to print the to-be-printed object 40.

[0045] In the process of printing the card by the printing device, the printing device is fed by the card feeding device 10, the to-be-printed object 40 is conveyed to the printing device, and then the to-be-printed object 40 is printed by the printing device.

[0046] Please refer to Figures 1 to 2 In some embodiments of the present application, the present application provides a card feeding device 10, which comprises: a hopper mechanism 20 and a conveying mechanism 30. The hopper mechanism 20 is used to load the to-be-printed object 40. The conveying mechanism 30 partially extends into the hopper mechanism 20, and the conveying mechanism 30 is used to convey the to-be-printed object 40 out of the hopper mechanism 20. The hopper mechanism 20 is provided with a blocking piece 21, which is used to block the to-be-printed object 40 in the hopper mechanism 20, so that the number of to-be-printed objects 40 conveyed out of the hopper mechanism 20 by the conveying mechanism 30 at a time meets the expectation.

[0047] The printing object 40 is loaded by the hopper mechanism 20 so that the conveying mechanism 30 can continuously convey the printing object 40. During the conveying process of the printing object 40 by the conveying mechanism 30, the printing object 40 in the hopper mechanism 20 is blocked by the blocking member 21, so that the conveying mechanism 30 does not convey too many printing objects 40 out of the hopper mechanism 20 during the conveying process, thereby controlling the number of printing objects 40 conveyed out of the hopper mechanism 20 by the conveying mechanism 30 at one time. After the printing object 40 is conveyed out of the hopper mechanism 20 by the conveying mechanism 30, the printing object 40 can be printed by the printing device. In this way, the card printing equipment is automatically fed.

[0048] Please refer to Figure 3 In some embodiments of the present application, the blocking member 21 is provided with a discharge port on the side close to the conveying mechanism 30.

[0049] The printing object 40 is loaded in the hopper mechanism 20 in a stacked manner and is carried by the conveying mechanism 30. During the operation of the conveying mechanism 30, the printing object 40 closest to the conveying mechanism 30 is conveyed out of the hopper mechanism 20 by the conveying mechanism 30. During the movement of the printing object 40 out of the hopper mechanism 20, the printing object 40 is driven to pass through the discharge port and then move out of the hopper mechanism 20, while the printing object 40 on the upper side is blocked by the blocking member 21 and stays in the hopper mechanism 20. When the printing object 40 closest to the conveying mechanism 30 is conveyed out of the hopper mechanism 20 by the conveying mechanism 30, the printing object 40 on the upper side in the hopper mechanism 20 moves close to the conveying mechanism 30 under the action of gravity, so that the conveying mechanism 30 can convey the printing object 40 on the upper side. In this way, the conveying mechanism 30 continuously conveys the printing object 40 in the hopper mechanism 20. The card feeding device 10 can adapt to the feeding of printing objects 40 of different thicknesses by adjusting the distance between the blocking member 21 and the conveying mechanism 30.

[0050] In some embodiments of the present application, the distance between the blocking member 21 and the conveying mechanism 30 is greater than the thickness of the printing object 40 and less than twice the thickness of the printing object 40.

[0051] By controlling the distance between the blocking member 21 and the conveying mechanism 30, the blocking member 21 only releases one printing object 40 closest to the conveying mechanism 30, so that the conveying mechanism 30 only conveys one printing object 40 out of the hopper mechanism 20 at one time, avoiding the stacking of the printing objects 40 during the printing process, and ensuring the effectiveness and reliability of the printing process.

[0052] In some embodiments of the present application, the printing area of the conveying mechanism 30 is provided with a shield 36 for preventing ink from polluting the conveying mechanism 30 during printing.

[0053] After the conveying mechanism 30 conveys the to-be-printed piece 40 to the printing area, the to-be-printed piece 40 is printed by the printing device. During the printing of the to-be-printed piece 40 by the printing device, the conveying mechanism 30 is shielded by the shield 36 to prevent the printing ink from polluting the conveying mechanism 30, thereby preventing the ink from accumulating on the conveying mechanism 30 to pollute the to-be-printed piece 40 and affect the printing precision. In this way, the printing ink is prevented from polluting the conveying mechanism 30 by shielding, thereby ensuring the printing effect and the printing precision.

[0054] In some embodiments of the present application, the size of the shield 36 in the conveying direction of the conveying mechanism 30 is a, the size of the printing area in the conveying direction of the conveying mechanism 30 is b, and the size of the to-be-printed piece 40 in the conveying direction of the conveying mechanism 30 is c, and there is b < a < c.

[0055] By making the size of the shield 36 in the conveying direction of the conveying mechanism 30 greater than the size of the printing area in the conveying direction of the conveying mechanism 30, the shield 36 can effectively block the ink from being sprayed to the conveying mechanism 30. By making the size of the shield 36 in the conveying direction of the conveying mechanism 30 less than the size of the to-be-printed piece 40 in the conveying direction of the conveying mechanism 30, the shield 36 is prevented from affecting the movement of the to-be-printed piece 40 at the conveying mechanism 30, so that the conveying mechanism 30 can automatically and continuously convey the to-be-printed piece 40.

[0056] Please refer to Figures 1 to 4 In some embodiments of the present application, the conveying mechanism 30 includes a belt conveying device 31 for conveying at least the to-be-printed piece 40 in the printing area. The belt conveying device 31 includes a conveying belt 32, a conveying driving device 33, and a guide roller 34. The conveying belt 32 is used to carry and drive the to-be-printed piece 40 to move. The conveying driving device 33 is used to drive the conveying belt 32 to operate. The guide roller 34 is arranged outside the conveying surface of the conveying belt 32, and the guide roller 34 is used to offset the conveying belt 32 to the inside of the belt conveying device 31. The shield 36 is arranged outside the guide roller 34, the shield 36 at least shields the printing area of the belt conveying device 31, and the height of the shield 36 is lower than the height of the conveying surface of the conveying belt 32.

[0057] The to-be-printed piece 40 is conveyed to the printing area by the belt conveying device 31. In the process of conveying the to-be-printed piece 40 by the belt conveying device 31, the to-be-printed piece 40 is placed on the conveying belt 32, and the conveying belt 32 is driven to rotate by the conveying driving device 33, so that the to-be-printed piece 40 can be driven by the belt conveying device 31. By arranging the guide roller 34 at the printing area, the part of the conveying belt 32 at the printing area is offset to the inside of the belt conveying device 31, so that the conveying surface of the belt conveying device 31 is left empty at the printing area, and the continuity of the conveying belt 32 is ensured. By arranging the protective piece 36 outside the guide roller 34, the part of the conveying surface of the belt conveying device 31 left empty at the printing area is filled by the protective piece 36, so that the continuity of the conveying process of the to-be-printed piece 40 is ensured. By shielding the printing area of the belt conveying device 31 by the protective piece 36, the printing ink is prevented from polluting the conveying belt 32 and the guide roller 34, so that the printing ink accumulated on the conveying belt 32 and the guide roller 34 is prevented from polluting the to-be-printed piece 40 and affecting the printing precision. In this way, the printing ink is prevented from polluting the conveying belt 32 and the guide roller 34 by shielding, so that the printing effect and the printing precision are ensured.

[0058] It can be understood that, in the process of conveying the to-be-printed piece 40 by the belt conveying device 31, the to-be-printed piece 40 is driven by the conveying belt 32. In the process of moving the to-be-printed piece 40 into the printing area, since the protective piece 36 is located at the printing area and the height of the protective piece 36 is lower than the height of the conveying surface of the conveying belt 32, the to-be-printed piece 40 can smoothly enter above the protective piece 36. In the process of moving the to-be-printed piece 40 in the printing area, the printing device prints the to-be-printed piece 40. In the process of printing the to-be-printed piece 40 by the printing device, the guide roller 34 and the conveying belt 32 are located inside the protective piece 36, and the to-be-printed piece 40 is located outside the protective piece 36, so that when the printing device prints the to-be-printed piece 40, the printing ink can be smoothly sprayed onto the to-be-printed piece 40, and cannot be sprayed onto the guide roller 34 and the conveying belt 32 due to being shielded by the protective piece 36.

[0059] By making the width of the protective piece 36 greater than the width of the printing area, the protective piece 36 can effectively protect the belt conveying device 31. By making the width of the protective piece 36 less than the width of the to-be-printed piece 40, in the process of passing through the protective piece 36, the to-be-printed piece 40 can be in contact with the conveying belt 32 on both sides of the protective piece 36 at the same time, so that the continuity of conveying the to-be-printed piece 40 by the belt conveying device 31 is ensured.

[0060] In some embodiments of the present application, the number of guide rollers 34 is at least two, and at least two guide rollers 34 are arranged on both sides of the protective piece 36.

[0061] By arranging the guide rollers 34 on both sides of the guard 36, the risk of the conveying belt 32 contacting the guard 36 is reduced, the gap between the conveying belt 32 and the guard 36 is reduced, the continuity of the conveying of the printee 40 by the belt conveying device 31 is ensured, the risk of the printee 40 falling into the inside of the guard 36 is reduced, and the reliability of the card feeding device 10 is improved.

[0062] In some embodiments of the present application, the guard 36 is provided with a receiving portion 37 on the side away from the conveying belt 32, and the receiving portion 37 is protruded from the guard 36. When the printee 40 passes through the guard 36, the receiving portion 37 receives the printee 40, so as to reduce the contact area between the printee 40 and the guard 36.

[0063] In the process of the printee 40 entering the guard 36, the printee 40 is received by the receiving portion 37 of the guard 36. By protruding the receiving portion 37 from the guard 36, the contact area between the printee 40 and the guard 36 is reduced, so as to reduce the friction between the printee 40 and the guard 36, and the printee 40 can pass through the guard 36 more smoothly and enter the conveying belt 32 downstream of the guard 36, so as to further ensure the continuity of the conveying of the printee 40 by the belt conveying device 31. By reducing the contact area between the printee 40 and the guard 36, the risk of the printee 40 being contaminated by the ink on the guard 36 is further reduced, and the printing effect is ensured.

[0064] In some embodiments of the present application, the belt conveying device 31 further comprises a limiting roller 35. The limiting roller 35 is arranged on the outside of the conveying surface of the conveying belt 32, the distance between the limiting roller 35 and the conveying surface of the conveying belt 32 is greater than the thickness of the printee 40, and the limiting roller 35 is used for limiting the printee 40 on the conveying belt 32.

[0065] In the process of the belt conveying device 31 conveying the printee 40, the printee 40 is limited by the limiting roller 35, so as to reduce the risk of the printee 40 slipping on the conveying belt 32, ensure the position accuracy of the printee 40 on the conveying belt 32, improve the printing accuracy, and ensure that the printing effect meets the expected requirements.

[0066] In some embodiments of the present application, the distance between the blocking member 21 and the conveying mechanism 30 is adjustable.

[0067] The card feeding device 10 can adapt to the feeding of the different thicknesses of the to-be-printed pieces 40 by adjusting the distance between the blocking piece 21 and the conveying mechanism 30. By controlling the distance between the blocking piece 21 and the conveying mechanism 30, the blocking piece 21 is only released to the to-be-printed piece 40 closest to the conveying mechanism 30, and the conveying mechanism 30 only conveys one to-be-printed piece 40 out of the hopper mechanism 20 at a time, so that the to-be-printed pieces 40 are prevented from being stacked in the printing process, and the effectiveness and reliability of the printing process are ensured.

[0068] In some embodiments of the present application, the hopper mechanism 20 further comprises a guiding device 22, and the guiding device 22 comprises a guiding piece 23, a limiting piece 24 and an adjusting mechanism 25. The guiding piece 23 is used for guiding the to-be-printed pieces 40 in the hopper mechanism 20. The limiting piece 24 is used for limiting the to-be-printed pieces 40 in the hopper mechanism 20, and the to-be-printed pieces 40 in the hopper mechanism 20 are located between the guiding piece 23 and the limiting piece 24. The adjusting mechanism 25 is used for adjusting the distance between the guiding piece 23 and the limiting piece 24.

[0069] In the process of conveying the to-be-printed pieces 40 out of the hopper mechanism 20 by the conveying mechanism 30, the to-be-printed pieces 40 are guided by the guiding piece 23, so that the position accuracy of the to-be-printed pieces 40 is ensured, the printing accuracy is improved, and the printing effect meets the expected requirements. The distance between the guiding piece 23 and the limiting piece 24 is adjusted by the adjusting mechanism 25, so that the hopper mechanism 20 can adapt to the loading of the to-be-printed pieces 40 of different sizes.

[0070] In the description of the specification, the description of the terms "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the description of the specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0071] In addition, the above description is only the preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A card feeding device, characterized in that: include: A silo mechanism, the silo mechanism being used to load pieces to be printed; A conveying mechanism, the conveying mechanism partially extending into the silo mechanism, the conveying mechanism being used to convey the to-be-printed piece to the outside of the silo mechanism; The silo mechanism is provided with a blocking member, which is used to block the pieces to be printed in the silo mechanism so that the number of pieces to be printed transported by the conveying mechanism to the outside of the silo mechanism at a time meets expectations.

2. The card feeding device according to claim 1, characterized in that: The printing area of ​​the conveying mechanism is provided with a protective member, and the protective member is used to prevent ink from contaminating the conveying mechanism during printing.

3. The card feeding device according to claim 2, characterized in that: Assume that the size of the protective member in the conveying direction of the conveying mechanism is a, the size of the printing area in the conveying direction of the conveying mechanism is b, and the size of the to-be-printed workpiece in the conveying direction of the conveying mechanism is c, then: b<a<c.

4. The card feeding device according to claim 2, characterized in that: The conveying mechanism includes a belt conveying device, and the belt conveying device is used to convey at least the workpiece to be printed in the printing area; The belt conveyor device comprises: A conveyor belt, the conveyor belt is used to carry and drive the workpiece to be printed; A conveying drive device, the conveying drive device is used to drive the conveying belt to operate; A guide roller, the guide roller being arranged outside the conveying surface of the conveying belt, and the guide roller being used to deviate the conveying belt toward the inside of the belt conveyor device; The protective member is arranged on the outside of the guide roller, and the protective member at least blocks the printing area of ​​the belt conveyor device. The height of the protective member is lower than the height of the conveying surface of the conveying belt.

5. The card feeding device according to claim 4, characterized in that: The number of the guide rollers is at least two, wherein at least two guide rollers are respectively arranged on both sides of the protective member.

6. The card feeding device according to claim 4, characterized in that: A receiving portion is provided on a side of the protective member away from the conveyor belt, and the receiving portion is protruded from the protective member; When the workpiece to be printed passes through the protective element, the receiving portion receives the workpiece to be printed, so as to reduce the contact area between the workpiece to be printed and the protective element.

7. The card feeding device according to claim 4, characterized in that: The belt conveyor further comprises: A limiting roller is arranged on the outside of the conveying surface of the conveyor belt. The distance between the limiting roller and the conveying surface of the conveyor belt is greater than the thickness of the workpiece to be printed. The limiting roller is used to limit the workpiece to be printed on the conveyor belt.

8. The card feeding device according to claim 1, characterized in that: The distance between the blocking member and the conveying mechanism is adjustable.

9. The card feeding device according to claim 7, characterized in that: The silo mechanism further includes a guide device, which includes: A guide member, the guide member being used to guide the workpiece to be printed in the hopper mechanism; A limiting member, the limiting member is used to limit the position of the workpiece to be printed in the hopper mechanism, the workpiece to be printed in the hopper mechanism being located between the guide member and the limiting member; An adjusting mechanism is used to adjust the distance between the guide member and the limiting member.

10. A printing device, characterized in that: include: The card feeding device according to any one of claims 1 to 9, wherein the card feeding device is used to convey the printed document; A printing device is arranged above the conveying mechanism, and is used to print the workpiece to be printed.

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