A card issuing mechanism and arc positioning device

Abstract

The present invention belongs to the technical field of paper conveying. On one hand, a card issuing mechanism is disclosed, which includes a card issuing knife for positioning paper, a base, a rotating shaft, a connecting part and an adjusting part. The rotating shaft is connected to the base and embedded in the card issuing knife. The card issuing knife is connected to the base by the connecting part. The connecting part can make the knife surface of the card issuing knife used for positioning the paper rotate around the rotating shaft. The adjusting part is arranged on the connecting part, and the adjusting part is connected to the card issuing knife. The adjusting part has a locking state that makes the card issuing knife locked to the base and an adjusting state that can adjust the knife surface of the card issuing knife to rotate around the rotating shaft. On the other hand, an arc positioning device is disclosed, which includes a pair of card issuing mechanisms as above arranged at intervals. The present invention can adjust the angle of the knife surface of the card issuing knife, ensure the position accuracy of the paper, avoid the skew of the paper, and ensure the production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of paper conveying, and in particular to a card issuing mechanism and an arc positioning device. Background Art

[0002] During the paper conveying process, a card cutting tool is usually set to position the paper on the conveying line to adjust the posture between the papers on the conveying line so that the paper can continue to be conveyed in a preset posture.

[0003] When positioning a paper with an arc shape, since the width of the blade of a pair of hairpin knives is much smaller than the length of the arc surface of the paper, in the prior art, a pair of hairpin knives arranged at intervals are usually selected for positioning the arc. However, in the process of positioning paper with different arcs, the blade of the hairpin knife always maintains a fixed angle tangent to the arc, so that the posture of the paper with different arcs delivered to the blade of the hairpin knife is often skewed, and the posture of the paper cannot be accurately positioned, thereby increasing the error of the downstream station in processing the paper and reducing the production efficiency.

[0004] Therefore, it is urgent to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a card issuing mechanism and a curvature positioning device to solve the problem of reduced production efficiency caused by the inability of the blade surface of a card issuing knife to accurately position paper pieces with different curvatures.

[0006] To achieve this object, the present invention provides a card issuing mechanism, which includes a card issuing knife for positioning a paper piece, and the card issuing mechanism also includes:

[0007] Pedestal;

[0008] A rotating shaft connected to the base and embedded in the hairpin cutter;

[0009] A connecting portion, the hairpin cutter is connected to the base by the connecting portion, and the connecting portion enables the cutting surface of the hairpin cutter for positioning the paper to rotate around the rotating axis; and

[0010] The adjusting part is arranged on the connecting part, the adjusting part is connected to the hair clip knife, and the adjusting part has a locking state for locking the hair clip knife to the base and an adjusting state for adjusting the blade surface of the hair clip knife to rotate around the rotating shaft.

[0011] Preferably, the card issuing institution further comprises:

[0012] A connecting shaft, wherein the hairpin cutter is provided with a connecting hole for inserting the connecting shaft, and the axis of the connecting shaft coincides with the axis of the rotating shaft;

[0013] a first connecting block connected to the base, the first connecting block being provided with a first hinge hole, the axis of the first hinge hole being coincident with the axis of the connecting shaft; and

[0014] A first accommodating groove is provided on the hair clipper, the connecting hole can extend to the groove wall of the first accommodating groove, the first connecting block extends into the first accommodating groove, the connecting shaft passes through the connecting hole and the first hinge hole, and is connected to the first connecting block;

[0015] The connecting portion includes the connecting shaft, the first connecting block and the first containing groove.

[0016] Preferably, an internal thread is provided in the first hinge hole, an external thread for engaging with the internal thread is provided on the connecting shaft, and a shoulder is provided on the connecting shaft. When the external thread engages with the internal thread, the connecting shaft has the adjustment state in which it can rotate together with the first connecting block and the locking state in which the shoulder and the first connecting block press against and clamp the hairpin knife.

[0017] Preferably, the outer side surface of the first connecting block located in the first accommodating groove is an arc curved surface.

[0018] Preferably, the card issuing institution further comprises:

[0019] a second connecting block connected to the base and spaced apart from the first connecting block along the axial direction of the rotating shaft, wherein the second connecting block is provided with a second hinge hole, and the axis of the second hinge hole coincides with the axis of the connecting shaft; and

[0020] A second accommodating groove is provided on the hairpin cutter and is spaced apart from the first accommodating groove along the axial direction of the rotating shaft, the connecting hole can pass through the groove wall of the second accommodating groove, the second connecting block extends into the second accommodating groove, and the connecting shaft passes through the second hinge hole and the first hinge hole in sequence;

[0021] The connecting portion further includes the second connecting block and the second containing groove.

[0022] Preferably, the outer side surface of the second connecting block located in the second accommodating groove is an arc curved surface.

[0023] Preferably, the card issuing mechanism further comprises a flattening component, wherein the flattening component is connected to the base and can flatten the paper delivered to the card issuing knife.

[0024] Preferably, a buffer component is further provided on the base, and the buffer component is arranged between the flattening component and the hairpin cutter, and the buffer component can buffer the pressure of the flattening component on the paper when the flattening component flattens the paper.

[0025] Preferably, the buffer assembly comprises:

[0026] A first buffer module is connected between the base and the flattening assembly, and the first buffer module can buffer the pressure of the flattening assembly on flattening the paper; and

[0027] The second buffer module is arranged between the hair clip knife and the base, and the second buffer module can buffer the impact force of the base acting on the hair clip knife.

[0028] Another aspect of the present invention provides an arc positioning device, which includes a pair of card issuing mechanisms as described above, and the pair of card issuing mechanisms are arranged at intervals.

[0029] Beneficial effects of the present invention: The present invention provides a connecting portion and an adjusting portion to facilitate adjustment of the angle of rotation of the blade of the hairpin knife around the rotating axis, thereby facilitating adjustment of the blade of the hairpin knife to a preset angle. The blade at a preset angle can position the paper conveyed to the hairpin knife and in contact with the blade to a preset posture, thereby ensuring the position accuracy of the paper, avoiding skewness of the paper, and ensuring production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a structural diagram of a card issuing mechanism provided by an embodiment of the present invention;

[0031] Figure 2 yes Figure 1 An exploded diagram of the card issuer in ;

[0032] Figure 3 yes Figure 2 Partial view at R in the middle.

[0033] In the figure:

[0034] 11. base; 12. connecting arm; 121. slideway; 13. T-shaped clamp;

[0035] 2. Hairpin knife; 21. Knife face; 22. Connecting hole; 23. First receiving groove; 24. Second receiving groove;

[0036] 31, connecting shaft; 311, shaft shoulder; 32, first connecting block; 321, first hinge hole; 33, second connecting block; 331, second hinge hole;

[0037] 4. Leveling assembly; 41. Pressing wheel; 42. Bracket;

[0038] 5. First buffer module; 51. First elastic member; 52. First base;

[0039] 6. Second buffer module; 61. Second base; 62. Second elastic member; 63. Sliding block; 64. Third base. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] In the prior art, in the process of conveying fan-shaped paper pieces, an arc positioning device including a pair of spaced-apart hairpin knives is usually provided to position the posture of the paper pieces. However, in the process of positioning fan-shaped paper pieces with different arcs, the blade of the hairpin knife is always tangent to the arc at a fixed angle, so that the posture of the paper pieces with different arcs abutting against the blade of the hairpin knife is often skewed, and the posture of the paper pieces cannot be accurately positioned, thereby increasing the error of paper processing in the downstream workstation and reducing production efficiency.

[0045] In order to solve the above problems, Figures 1 to 3 As shown, this embodiment provides an arc positioning device, which includes a pair of spaced card issuing mechanisms, the card issuing mechanism including a base 11, a rotating shaft, a connecting arm 12, a T-shaped clamp 13, a card issuing knife 2, a connecting portion and an adjusting portion, the connecting arm 12 is fixedly connected to the base 11, a slide groove 121 is provided on the connecting arm 12, the T-shaped clamp 13 is connected to the connecting arm 12, the T-shaped clamp 13 can slide along the slide groove 121, and can adjust the distance between the T-shaped clamp 13 and the base 11, the T-shaped clamp 13, the connecting arm 12 and the base 11 together form a card slot for installing the card issuing mechanism, so as to facilitate the disassembly and assembly of the card issuing mechanism and adjust the position of the card issuing mechanism.

[0046] The rotating shaft is connected to the base 11 and embedded in the hairpin knife 2. The hairpin knife 2 is connected to the base 11 by a connecting part. The connecting part can make the blade 21 of the hairpin knife 2 used for positioning the paper rotate around the rotating shaft to reduce the volume of the card issuing mechanism. The adjusting part is arranged on the connecting part. The adjusting part is connected to the hairpin knife 2. The adjusting part has a locking state that makes the hairpin knife 2 locked to the base 11 and an adjusting state that can adjust the blade 21 of the hairpin knife 2 to rotate around the rotating shaft, so as to facilitate the adjustment of the angle of rotation of the blade 21 of the hairpin knife 2 around the rotating shaft, so as to facilitate the adjustment of the blade 21 of the hairpin knife 2 to a preset angle. The blade 21 at the preset angle can position the paper conveyed to the hairpin knife 2 and abutting against the blade 21 to a preset posture, thereby ensuring the position accuracy of the paper, avoiding the skewness of the paper, and ensuring the production efficiency. It can be understood that the arc positioning device in this embodiment can also position paper with other shapes having an arc portion, which is not specifically limited here.

[0047] Specifically, the card issuing mechanism also includes a connecting shaft 31, a first connecting block 32 and a first accommodating groove 23. The connecting part includes the connecting shaft 31, the first connecting block 32 and the first accommodating groove 23. The card issuing knife 2 is provided with a connecting hole 22 for inserting the connecting shaft 31. The first connecting block 32 is connected to the base 11. The first connecting block 32 is provided with a first hinge hole 321. The axis of the first hinge hole 321 coincides with the axis of the rotating shaft. The first accommodating groove 23 is provided on the card issuing knife 2. The connecting hole 22 can extend to the groove wall of the first accommodating groove 23. The first connecting block 32 extends into the first accommodating groove 23. The connecting shaft 31 passes through the connecting hole 22 and the first hinge hole 321, and is connected to the first connecting block 32, so that the rotating shaft can be embedded in the card issuing knife 2, that is, the card issuing knife 2 can rotate on its own. The structure is compact, and the volume of the card issuing mechanism is reduced.

[0048] With the above structure, since the hairpin knife 2 can rotate on its own, in order to prevent the hairpin knife 2 from swinging when the paper is transported to the hairpin knife 2 and abuts against the knife surface 21, in the present embodiment, an internal thread is provided in the first hinge hole 321, and an external thread for engaging with the internal thread is provided on the connecting shaft 31. A shoulder 311 is also provided on the connecting shaft 31. When the external thread is engaged with the internal thread, the connecting shaft 31 has an adjustment state in which it can rotate together with the first connecting block 32 and a locking state in which the shoulder 311 and the first connecting block 32 press and clamp the hairpin knife 2 together. Therefore, when the hairpin knife 2 is adjusted to an angle matching the curvature of the paper, the connecting shaft 31 is tightened, and the shoulder 311 of the connecting shaft 31 and the first connecting block 32 press and clamp on the hairpin knife 2 together, so that the connecting shaft 31 and the first connecting block 32 hold the hairpin knife 2 tightly to lock the hairpin knife 2.

[0049] In the present embodiment, the first connecting block 32 remains fixed during the rotation of the hairpin knife 2. In order to prevent the outer side surface of the first connecting block 32 located in the first accommodating groove 23 from scratching the groove wall of the first accommodating groove 23 during the rotation of the hairpin knife 2, thereby causing the hairpin knife 2 to shake or directly get stuck, in order to solve the above problem, the outer side surface of the first connecting block 32 located in the first accommodating groove 23 is an arc surface, thereby preventing the part of the first connecting block 32 located in the first accommodating groove 23 from scratching the groove wall of the first accommodating groove 23.

[0050] Preferably, in this embodiment, the card issuing mechanism also includes a second connecting block 33 and a second accommodating groove 24, and the connecting part also includes a second connecting block 33 and a second accommodating groove 24. The second connecting block 33 is connected to the base 11 and is spaced apart from the first connecting block 32 along the axial direction of the rotating shaft. A second hinge hole 331 is provided on the second connecting block 33, and the axis of the second hinge hole 331 coincides with the axis of the rotating shaft. The second accommodating groove 24 is provided on the card issuing knife 2 and is spaced apart from the first accommodating groove 23 along the axial direction of the rotating shaft. The connecting hole 22 can pass through the groove wall of the second accommodating groove 24, and the second connecting block 33 extends into the second accommodating groove 24, and the connecting shaft 31 passes through the second hinge hole 331 and the first hinge hole 321 in sequence, so that the first connecting block 32 and the second connecting block 33 together define the connecting shaft 31, thereby increasing the structural stability of the connecting part. In order to prevent the second connecting block 33 from scratching the groove wall of the second receiving groove 24 during the rotation process, the outer side surface of the second connecting block 33 located in the second receiving groove 24 is an arc curved surface.

[0051] In this embodiment, when the moving paper abuts against the blade surface of the card cutting knife 2, the paper may be warped, bulged, or otherwise uneven. To solve the above problems, the card cutting mechanism further includes a leveling component 4, which is connected to the base 11 and can level the paper delivered to the card cutting knife 2. Specifically, the leveling component 4 includes a pair of sequentially arranged pressure wheel groups, each of which includes a pair of sequentially arranged pressure wheels 41, and the pair of pressure wheels 41 can be rotatably connected to a bracket 42, which is connected to the base 11. An appropriate spacing can be maintained between the wheel surface of the pressure wheel 41 and the conveying surface, and the spacing is not greater than the thickness of the paper, so that the pressure wheel 41 can level the paper delivered to the card cutting knife 2.

[0052] Due to the different thicknesses of different paper pieces, when the leveling component 4 is leveling a thicker paper piece, the pressure wheel 41 will press an indentation on the paper piece, thereby damaging the paper piece or making the paper piece defective. In order to improve the versatility of the card issuing mechanism, a buffer component is also provided on the base 11. The buffer component is provided between the leveling component 4 and the card issuing knife 2. The buffer component can buffer the pressure of the leveling component 4 on the paper piece when the leveling component 4 is leveling the paper piece. Specifically, in this embodiment, the buffer component includes a first buffer module 5 and a second buffer module 6. The first buffer module 5 is connected between the base 11 and the leveling component 4. The first buffer module 5 can buffer the pressure of the leveling component 4 when leveling the paper piece. The second buffer module 6 is provided between the card issuing knife 2 and the base 11. The second buffer module 6 can buffer the impact force of the base 11 on the card issuing knife 2.

[0053] Among them, the first buffer module 5 includes a first base 52 and a first elastic member 51, the first base 52 is fixed on the base 11, one end of the first elastic member 51 is connected to the first base 52, one end of the bracket 42 is hinged to the base 11, a pair of pressure wheels 41 can be rotatably connected to the other end of the bracket 42, and the other end of the first elastic member 51 is connected to the middle section of the bracket 42. When the leveling component 4 levels thicker paper, the pressure wheel 41 can be lifted up by the paper and cause the first elastic member 51 to undergo elastic deformation, thereby buffering the pressure of the pressure wheel 41 on the paper.

[0054] The second buffer module 6 includes a second base 61, a second elastic member 62, a third base 64, a pair of sliders 63 and a slide rail. The second base 61 and the pair of sliders 63 are both connected to the base 11. The second base 61 and the pair of sliders 63 are both spaced apart along the thickness direction of the paper. The second elastic member 62 is disposed between the second base 61 and the base 11. The second elastic member 62 can buffer the impact force of the base 11 acting on the second base 61. The slide rail, the first connecting block 32 and the second connecting block 33 are all disposed on the third base 64. The slide rail extends along the thickness direction of the paper. The pair of sliders 63 are slidably connected to the slide rail. The second base 61 is connected to the third base 64. The slide rail and the pair of sliders 63 limit the hairpin knife 2 from sliding along the thickness direction of the paper to prevent the hairpin knife 2 from swinging around the rotating shaft.

[0055] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A card issuing mechanism, comprising a card issuing knife (2) for positioning a paper, characterized in that: The card issuing institution also includes: Base (11); A rotating shaft connected to the base (11) and embedded in the hairpin knife (2); A connecting portion, the hairpin cutter (2) is connected to the base (11) by the connecting portion, and the connecting portion enables a blade surface (21) of the hairpin cutter (2) for positioning a paper piece to rotate around a rotation axis; and an adjusting portion, arranged on the connecting portion, the adjusting portion being connected to the hair clipping knife (2), the adjusting portion having a locking state for locking the hair clipping knife (2) to the base (11) and an adjusting state for adjusting the blade surface (21) of the hair clipping knife (2) to rotate around the rotating shaft; The card issuing institution also includes: A connecting shaft (31), the hairpin cutter (2) is provided with a connecting hole (22) for inserting the connecting shaft (31), and the axis of the connecting shaft (31) coincides with the axis of the rotating shaft; A first connecting block (32) connected to the base (11), the first connecting block (32) being provided with a first hinge hole (321), the axis of the first hinge hole (321) being coincident with the axis of the connecting shaft (31); and A first accommodating groove (23) is arranged on the hair clipper (2), the connecting hole (22) can extend to the groove wall of the first accommodating groove (23), the first connecting block (32) extends into the first accommodating groove (23), the connecting shaft (31) passes through the connecting hole (22) and the first hinge hole (321), and is connected to the first connecting block (32); The connecting portion comprises the connecting shaft (31), the first connecting block (32) and the first containing groove (23); An internal thread is arranged in the first hinge hole (321), an external thread for engaging with the internal thread is arranged on the connecting shaft (31), and a shoulder (311) is arranged on the connecting shaft (31). When the external thread is engaged with the internal thread, the connecting shaft (31) has the adjustment state in which it can rotate together with the first connecting block (32) and the locking state in which the shoulder (311) and the first connecting block (32) press and clamp the hairpin knife (2) together.

2. The card issuing mechanism according to claim 1, characterized in that: The outer side surface of the first connecting block (32) located in the first containing groove (23) is an arc curved surface.

3. The card issuing mechanism according to claim 1, characterized in that: The card issuing institution also includes: a second connecting block (33) connected to the base (11) and spaced apart from the first connecting block (32) along the axial direction of the rotating shaft, the second connecting block (33) being provided with a second hinge hole (331), the axis of the second hinge hole (331) being coincident with the axis of the connecting shaft (31); and A second containing groove (24) is arranged on the hairpin cutter (2) and is spaced apart from the first containing groove (23) along the axial direction of the rotating shaft, the connecting hole (22) can pass through the groove wall of the second containing groove (24), the second connecting block (33) extends into the second containing groove (24), and the connecting shaft (31) passes through the second hinge hole (331) and the first hinge hole (321) in sequence; The connecting portion further comprises the second connecting block (33) and the second accommodating groove (24).

4. The card issuing mechanism according to claim 3, characterized in that: The outer side surface of the second connecting block (33) located in the second containing groove (24) is an arc curved surface.

5. The card issuing mechanism according to claim 1, characterized in that: The card issuing mechanism further comprises a flattening component (4), wherein the flattening component (4) is connected to the base (11), and the flattening component (4) is capable of flattening the paper piece transported to the card issuing knife (2).

6. The card issuing mechanism according to claim 5, characterized in that: The base (11) is also provided with a buffer component, which is arranged between the flattening component (4) and the hair clip knife (2), and can buffer the pressure of the flattening component (4) on the paper when the flattening component (4) flattens the paper.

7. The card issuing mechanism according to claim 6, characterized in that: The buffer assembly comprises: A first buffer module (5) is connected between the base (11) and the flattening assembly (4), and the first buffer module (5) is capable of buffering the pressure of the flattening assembly (4) flattening the paper; and The second buffer module (6) is arranged between the hair clip knife (2) and the base (11), and the second buffer module (6) is capable of buffering the impact force of the base (11) on the hair clip knife (2).

8. A radian positioning device, characterized in that: It comprises a pair of card issuing mechanisms as described in any one of claims 1 to 7, wherein the pair of card issuing mechanisms are arranged at intervals.

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