A card warpage detector

Abstract

The utility model relates to the technical field of detector, concretely is a card warping degree detector, including base and detection part, still including spacing part and pressing part, spacing part is located on the base upper surface, is used for fixing card on the base, pressing part also is located on the base upper surface, and is located spacing part middle part, is used for pressing card on the base, spacing part includes fixed spacing assembly and sliding spacing assembly, fixed spacing assembly is L type, is used for the preliminary restriction card, the utility model discloses through setting left baffle and front baffle, carries out the restriction to the two sides of card adjacent, right baffle between adjustable and left baffle distance, can limit the other side of card, and also facilitate taking and placing card, the crank of rotation presses down card in middle part, further fixes card, and will not lead to card deformation, guarantees detection result. The detector simple structure, low price, be favorable to cost control.

Description

Technical Field

[0001] This utility model relates to the field of testing instrument technology, and in particular to a card warpage testing instrument. Background Technology

[0002] A card is a portable carrier that integrates information storage, identity identification, and functional interaction in a thin, flat form. It is widely used in finance, transportation, identity authentication, and consumer services. Its form, material, and performance need to be adapted to the usage requirements of different scenarios, while meeting strict quality standards (such as warpage and durability) to ensure compatibility with terminal devices (such as card readers and ATMs).

[0003] After the card is cut, the edge fibers shrink or the lamination edge bonding pressure is insufficient, which may cause the edge to warp and the center to be relatively flat. At this time, the center area is more evenly stressed and the warping degree is usually low (even close to 0). This warping shape is the most common, such as the warping shape of most substandard bank cards and membership cards.

[0004] Card warpage is detected using a card warpage detector. Traditional card warpage detectors mostly rely on vacuum adsorption devices to position the cards during the detection process. Multiple individually controlled vacuum ports on the detection table are used to adsorb cards of different sizes and fix them to the table. However, vacuum adsorption requires precise control of the adsorption force; otherwise, the card will deform, affecting the detection results. Controlling the vacuum adsorption force requires a highly precise vacuum regulator and vacuum pressure sensor working together, which is costly. Furthermore, a malfunction in this precision instrument will affect the detection results. Utility Model Content

[0005] The main objective of this invention is to provide a card warpage detector to solve the problems raised in related technologies.

[0006] To achieve the above objectives, according to one aspect of the present invention, a card warpage detector is provided, comprising a base and a detection unit, and further comprising:

[0007] A limiting part, which is provided on the upper surface of the base, is used to fix the card on the base;

[0008] The pressing part is also provided on the upper surface of the base and is located in the middle of the limiting part, for pressing the card onto the base.

[0009] Furthermore, a vertical plate is fixedly provided on the right side of the upper surface of the base, and several brackets are fixedly provided on the rear side, the brackets being used to support the detection unit.

[0010] Furthermore, the detection unit includes a U-shaped frame and a cross frame, and a first sliding groove is provided on the lower surface of the U-shaped frame, with a first cylinder fixedly provided at one end of the first sliding groove.

[0011] Furthermore, a second sliding groove is provided on the lower surface of the cross frame, a second cylinder is fixedly provided at one end of the second sliding groove, and a laser displacement sensor is slidably provided on the lower surface of the cross frame.

[0012] Furthermore, the limiting part includes a fixed limiting component and a sliding limiting component. The fixed limiting component is L-shaped and is used to initially limit the card. The sliding limiting component can change the distance from the fixed limiting component to press the card onto the fixed limiting component.

[0013] Furthermore, the fixed limiting assembly includes a left baffle and a front baffle that are fixedly connected in an L-shape. A left pad is fixedly provided on the inner side of the left baffle, and a front pad is fixedly provided on the inner side of the front baffle.

[0014] Furthermore, the sliding limit assembly includes a right baffle and a right pad fixedly disposed on the inner side of the right baffle. A threaded rod and several guide rods are fixedly disposed on the outer side of the right baffle, and a nut is threaded onto the threaded rod.

[0015] Furthermore, the pressing part includes a crank and a pressure plate fixedly disposed at the front end of the crank, and the rear end of the crank is rotatably connected to the base.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention restricts the card on both adjacent sides by setting a left baffle and a front baffle; a right baffle, whose distance from the left baffle is adjustable, restricts the other side of the card while facilitating card placement and removal; a rotating crank presses the card in the middle, further securing it without causing deformation and ensuring accurate test results. This testing instrument has a simple structure, is inexpensive, and helps control costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the entire utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the entire utility model. Figure 2 .

[0020] Figure label:

[0021] 1. Base; 2. Upright plate; 3. Bracket; 4. U-shaped frame; 41. First slide groove; 42. First cylinder; 5. Horizontal frame; 51. Second slide groove; 52. Second cylinder; 6. Laser displacement sensor; 7. Crank; 8. Pressure plate; 9. Left baffle; 10. Left pad; 11. Front baffle; 12. Front pad; 13. Right baffle; 14. Right pad; 15. Threaded rod; 16. Guide rod; 17. Nut. Detailed Implementation

[0022] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0023] This embodiment provides a card warpage detector, such as... Figure 1 As shown, it includes a base 1 and a detection unit, and also includes:

[0024] A limiting part is provided on the upper surface of the base 1 to fix the card on the base 1;

[0025] The pressing part is also provided on the upper surface of the base 1 and is located in the middle of the limiting part, for pressing the card onto the base 1.

[0026] A vertical plate 2 is fixedly installed on the right side of the upper surface of the base 1, and several brackets 3 are fixedly installed on the rear side. The brackets 3 are used to support the detection unit.

[0027] The testing section includes a U-shaped frame 4 and a horizontal frame 5, such as Figure 2 As shown, a first groove 41 is formed on the lower surface of the U-shaped frame 4, and a first cylinder 42 is fixedly mounted at one end of the first groove 41. The U-shaped frame 4 is fixedly mounted on the top of the support 3. A first protrusion that mates with the first groove 41 is fixedly mounted at the top of the cross frame 5 corresponding to the first groove 41. Both the first protrusion and the first groove 41 have a T-shaped cross-section. The first protrusion can slide back and forth in the first groove 41, allowing the cross frame 5 to slide back and forth along the first groove 41. The piston rod of the first cylinder 42 is fixedly connected to the first protrusion and is used to push the cross frame 5 to slide, thereby changing the position of the laser displacement sensor 6 longitudinally.

[0028] A second groove 51 is formed on the lower surface of the crossbar 5. A second cylinder 52 is fixedly mounted at one end of the second groove 51. A laser displacement sensor 6 is slidably mounted on the lower surface of the crossbar 5. The laser displacement sensor 6 detects the warpage of the card using optical triangulation. A second protrusion that mates with the second groove 51 is fixedly mounted on the top of the laser displacement sensor 6. Both the second protrusion and the second groove 51 have a T-shaped cross-section. The second protrusion can slide back and forth within the second groove 51, allowing the laser displacement sensor 6 to slide back and forth along the second groove 51. The piston rod of the second cylinder 52 is fixedly connected to the second protrusion and is used to push the laser displacement sensor 6 to slide.

[0029] The limiting part includes a fixed limiting component and a sliding limiting component. The fixed limiting component is L-shaped and is used to initially limit the card. The sliding limiting component can change the distance from the fixed limiting component to press the card onto the fixed limiting component.

[0030] The fixed limiting assembly includes a left baffle 9 and a front baffle 11 fixedly connected in an L-shape. A left pad 10 is fixedly mounted on the inner side of the left baffle 9, and a front pad 12 is fixedly mounted on the inner side of the front baffle 11. During testing, a card is attached to the left pad 10 and the front pad 12. Rotating the nut 17 pushes the right baffle 13 to the left via the threaded rod 15, causing the right pad 14 to contact the card and fix the card to the base 1.

[0031] The sliding limiting assembly includes a right baffle 13 and a right pad 14 fixedly disposed inside the right baffle 13. A threaded rod 15 and several guide rods 16 are fixedly disposed outside the right baffle 13, and a nut 17 is threaded onto the threaded rod 15. The nut 17 is rotatably connected to the upright plate 2, and the threaded rod 15 and guide rods 16 are slidably connected to the upright plate 2. The right baffle 13 is arranged parallel to the left baffle 9 and is slidably connected to the base 1. Its length is less than that of the left baffle 9 to prevent the end of the right baffle 13 from touching the front pad 12 and affecting the sliding of the right baffle 13. When clamping a card, the right baffle 13 moves to the left until the right pad 14 just contacts the card and then stops moving to prevent the right pad 14 from squeezing the card and causing it to deform. The right pad 14 blocks the card at its right end to prevent external vibration from causing the card to shift.

[0032] The pressing part includes a crank 7 and a pressure plate 8 fixedly disposed at the front end of the crank 7. The rear end of the crank 7 is rotatably connected to the base 1. A torsion spring is provided at the connection between the crank 7 and the base 1. In its natural state, the torsion spring keeps the crank 7 in place. Figure 1 When the card is in its current state, the pressure plate 8 should be gently pressed onto the card to prevent it from moving. Lifting the crank 7 allows the card to be placed in the corresponding position on the base 1. The pressure plate 8 is located at the centroid of the rectangle formed by the left baffle 9 and the front baffle 11. When the card is placed close to the left baffle 9 and the front baffle 11, the pressure plate 8 is located at the center of the card, preventing the card from being squeezed and deformed by the pressure plate 8.

[0033] The pressure plate 8, left pad 10, front pad 12 and right pad 14 are all made of soft and elastic materials, such as rubber. When the pressure plate and the pad just come into contact with the card, the elastic material can press the card with friction without squeezing the card, thus preventing the card from deforming due to squeezing and affecting the test results.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A card warpage detector, comprising a base (1) and a detection unit, characterized in that, Also includes: A limiting part is provided on the upper surface of the base (1) for fixing the card on the base (1); The pressing part is also provided on the upper surface of the base (1) and located in the middle of the limiting part, for pressing the card onto the base (1).

2. The card warpage detector according to claim 1, characterized in that, The base (1) has a vertical plate (2) fixed on the right side of its upper surface and several brackets (3) fixed on its rear side. The brackets (3) are used to support the detection unit.

3. The card warpage detector according to claim 1, characterized in that, The detection unit includes a U-shaped frame (4) and a cross frame (5). A first sliding groove (41) is provided on the lower surface of the U-shaped frame (4), and a first cylinder (42) is fixedly provided at one end of the first sliding groove (41).

4. The card warpage detector according to claim 3, characterized in that, The lower surface of the cross frame (5) is provided with a second sliding groove (51), and a second cylinder (52) is fixedly provided at one end of the second sliding groove (51). A laser displacement sensor (6) is slidably provided on the lower surface of the cross frame (5).

5. The card warpage detector according to claim 1, characterized in that, The limiting part includes a fixed limiting component and a sliding limiting component. The fixed limiting component is L-shaped and is used to initially limit the card. The sliding limiting component can change the distance from the fixed limiting component to press the card onto the fixed limiting component.

6. The card warpage detector according to claim 5, characterized in that, The fixed limiting assembly includes a left baffle (9) and a front baffle (11) that are fixedly connected in an L-shape. A left pad (10) is fixedly provided on the inner side of the left baffle (9), and a front pad (12) is fixedly provided on the inner side of the front baffle (11).

7. The card warpage detector according to claim 5, characterized in that, The sliding limit assembly includes a right baffle (13) and a right pad (14) fixedly disposed on the inner side of the right baffle (13). A threaded rod (15) and several guide rods (16) are fixedly disposed on the outer side of the right baffle (13). A nut (17) is threaded onto the threaded rod (15).

8. The card warpage detector according to claim 1, characterized in that, The pressing part includes a crank (7) and a pressure plate (8) fixedly disposed at the front end of the crank (7), and the rear end of the crank (7) is rotatably connected to the base (1).

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