A device for adjusting the flatness of a thermal printer thermal sheet test pin card

Abstract

The present invention belongs to the technical field of printers, and in particular relates to a flatness adjustment device for a thermal sheet test pin card of a thermal printer, comprising: a fixed plate, a test system box is provided on the fixed plate, fixed upper and lower adjustment blocks of the test system are symmetrically provided on one side of the test system box, a test system bridge block 1 is provided on one side of the two fixed upper and lower adjustment blocks of the test system, a bridge 2 is provided on the bottom of the test system bridge block 1, and an R-axis adjustment differential head is provided on one side of the two bridges 2; a parallel adjustment plate, the parallel adjustment plate is provided on the bottom side of the fixed plate, and two R-axis adjustment differential heads are located above the parallel adjustment plate; an R-axis disc, the R-axis disc is provided in the parallel adjustment plate, and the R-axis disc is connected to two needle card L-shaped clamps through a number of needle card quick-release hand screws. The present invention ensures that the overall device is simple and convenient to operate, has low installation requirements, and has high flatness adjustment positioning accuracy; the needle card can be adjusted up and down, and the R-axis adjustment angle accuracy is high; it is lightweight and low-cost.

Description

Technical Field

[0001] The invention belongs to the technical field of printers, and in particular relates to a flatness adjustment device for a thermal sheet test pin card of a thermal printer. Background Art

[0002] A thermal printer prints images or text by heating a special coating on thermal paper. The working principle is that the heating element in the thermal print head heats the thermal paper surface, causing a chemical reaction in the thermal coating, leaving behind the image or text. Thermal printers are widely used in ticket printing, label printing, receipt printing, and other fields because they require no ink or ribbon, and offer high printing speeds.

[0003] During the operation of a thermal printer, the accuracy and stability of the thermal print head directly impacts print quality, especially in applications requiring high precision. A thermal print head typically consists of multiple heating elements, which must maintain a certain contact pressure with the thermal paper surface to ensure uniform and stable heating, thereby guaranteeing print quality.

[0004] However, with the continuous development of thermal printers and the increasing complexity of their application environments, the contact accuracy between traditional print heads and thermal paper is often affected by factors such as the flatness of the thermal paper, the installation accuracy of the print head, and the pressure distribution during printing, resulting in unstable print quality, blurred or uneven printing effects, and other problems. Among them, the flatness problem of the print head is particularly prominent. If the contact surface between the print head and the thermal paper is uneven, or there is excessive or insufficient local pressure, the print quality will be reduced. At the same time, the flatness of the thermal printer thermal sheet test pin card needs to be adjusted, and the adjustment process is relatively complicated, difficult to install, and the flatness adjustment positioning accuracy is low. In view of this, we propose a thermal printer thermal sheet test pin card flatness adjustment device. Summary of the Invention

[0005] The object of the present invention is to provide a device for adjusting the flatness of a thermal sheet test pin card of a thermal printer to solve the problems raised in the above-mentioned background technology.

[0006] In view of this, the present invention provides a device for adjusting the flatness of a thermal printer thermal sheet test pin card, comprising:

[0007] A fixed plate, wherein a test system box is provided on the fixed plate, and a test system fixed upper and lower adjustment blocks are symmetrically provided on one side of the test system box. A test system bridge block 1 is provided on one side of each of the two test system fixed upper and lower adjustment blocks, and a bridge 2 is provided at the bottom of each of the test system bridge blocks 1. An R-axis adjustment differential head is provided on one side of each of the two bridges 2;

[0008] A parallel adjustment plate is provided on the bottom side of the fixed plate, and two R-axis adjustment differential heads are located above the parallel adjustment plate;

[0009] R-axis disc, the R-axis disc is arranged in the parallel adjustment plate, and the R-axis disc is connected to two needle card L-shaped clamps through a number of needle card quick-release hand screws. A needle card positioning block is provided on one side of the two needle card L-shaped clamps, and a needle card is provided at the bottom of the two needle card L-shaped clamps.

[0010] In this technical solution, the needle card is manually placed on the needle card positioning block and inserted into the test system box, and the needle card L-shaped clamp is used to press the needle card. The two sides of the test system box are fastened with the test system bridge block 1, and the bridge blocks 2 on both sides are fixed to the R-axis disk. In this way, the test system box, R-axis disk, needle card, and needle card fixing module are designed as a whole. When the disk rotates, the needle card and the test system box rotate together.

[0011] The disc placed between the two R-axis discs is designed with three sets of evenly distributed high-precision micro deep hook bearing clearances to ensure that the disc's rotational clearance is less than 0.005mm, also ensuring smooth disc rotation;

[0012] The overall test system module is designed with a differential head (scale 0.01mm) and a tension spring on the bridge block on the left. A spring is designed at the lower left corner of the disc. In the natural state, the spring pushes the disc to the right, and the tension spring tightens the disc. If the needle card R axis is found to be deviated, just adjust the differential head to find the correct position of the needle card R axis;

[0013] The entire debugging system is fixed by four M8 fixing screws and four adjusting screws to fix the parallel adjustment plate. The needle card is put on the machine to verify that the left and right positions of the needle are tilted, and the adjusting screws at the four corners are adjusted until the left and right positions of the needle card are parallel.

[0014] In the above technical solution, further, the test system box is fixed to the fixing plate by a plurality of screws, and the test system fixed upper and lower adjustment blocks are fixed to the test system box by a plurality of screws.

[0015] In this technical solution, it is ensured that the test system box is fixed to the fixed plate and the structure of the upper and lower adjustment blocks of the test system is fixed.

[0016] In the above technical solution, further, the test system bridge block 1 is rotatably connected to the test system fixed upper and lower adjustment blocks, and the bridge 2 is fixed to the test system bridge block 1 by a plurality of screws.

[0017] In this technical solution, the structural stability of the test system bridge block 1 and the test system fixed upper and lower adjustment blocks is ensured, and the structural stability of the bridge 2 and the test system bridge block 1 is ensured.

[0018] In the above technical solution, further, the R-axis adjustment differential head is fixed to one side of the bridge 2 by a plurality of screws.

[0019] In this technical solution, the structural stability of the R-axis adjustment differential head and the bridge 2 is ensured.

[0020] In the above technical solution, further, the parallel adjustment plate is tightly welded to the bottom of the fixed plate.

[0021] In this technical solution, the structural stability of the parallel adjustment plate and the fixed plate is ensured.

[0022] In the above technical solution, further, the distance between the R-axis adjustment micrometer head and the adjustment plate is 0.5-1 cm.

[0023] In this technical solution, the R-axis adjustment differential head has sufficient space for movement.

[0024] In the above technical solution, further, the needle clamp quick-release thumb screw is threadedly connected to the R-axis disc and the needle clamp L-shaped clamp block.

[0025] In this technical solution, the structural stability of the R-axis disc and the needle clamp L-shaped clamp block is ensured, and it is also convenient to disassemble and install the R-axis disc from the needle clamp L-shaped clamp block.

[0026] In the above technical solution, further, the needle card L-shaped clamping block is tightly welded to the needle card positioning block.

[0027] In this technical solution, the structural stability of the needle clamp L-shaped clamping block and the needle clamp positioning block is ensured.

[0028] In the above technical solution, further, the needle card L-shaped clamping block is tightly welded to the needle card.

[0029] In this technical solution, the structural stability of the needle card L-shaped clamp and the needle card is ensured.

[0030] In the above technical solution, further, the flatness of the clamping surface of the needle clamp positioning block is less than 0.007 mm, and the flatness of the groove surface of the parallel adjustment plate is less than 0.005 mm.

[0031] In this technical solution, to ensure that the needle card R axis is not shifted, it is only necessary to adjust the micrometer head to find the exact position of the needle card R axis.

[0032] The beneficial effects of the present invention are:

[0033] The thermal printer thermal sheet test pin card flatness adjustment device ensures that the overall device is simple and convenient to operate, has low installation requirements, and has high flatness adjustment positioning accuracy; the pin card can be adjusted up and down, and the R-axis adjustment angle has high accuracy; it is lightweight and low-cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is one of the overall structural diagrams of the present invention;

[0035] Figure 2 This is the second schematic diagram of the overall structure of the present invention.

[0036] The marks in the figure are:

[0037] 1. Fixed plate; 2. Parallel adjustment plate; 3. Flatness adjustment screw; 4. Test system box; 5. Test system fixed upper and lower adjustment blocks; 6. Test system bridge block 1; 7. R-axis adjustment micrometer head; 8. Bridge 2; 9. R-axis disc; 10. Needle card quick release thumb screw; 11. Needle card L-shaped clamp; 12. Needle card positioning block; 13. Needle card. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0039] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0040] It should be noted that the terms "first," "second," etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and that the objects distinguished by "first," "second," etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0041] It should be noted that, in the description of this application, the directions or positional relationships indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional terms do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional terms "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0042] It should be noted that, in the present application, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0043] Example 1:

[0044] See also Figure 1-2 As shown in the figure, this embodiment provides a device for adjusting the flatness of a thermal printer thermal sheet test pin card, comprising:

[0045] A fixed plate 1 is provided with a test system box 4 on the fixed plate 1. One side of the test system box 4 is symmetrically provided with a test system fixed upper and lower adjustment block 5. One side of each of the two test system fixed upper and lower adjustment blocks 5 is provided with a test system bridge block 1 6. The bottom of each of the test system bridge blocks 1 6 is provided with a bridge 2 8. One side of each of the two bridge 2 8 is provided with an R-axis adjustment differential head 7;

[0046] The parallel adjustment plate 2 is arranged on the bottom side of the fixed plate 1, and the two R-axis adjustment differential heads 7 are located above the parallel adjustment plate 2;

[0047] The R-axis disc 9 is arranged in the parallel adjustment plate 2. The R-axis disc 9 is connected to two needle card L-shaped clamps 11 through a number of needle card quick-release hand screws 10. A needle card positioning block 12 is provided on one side of the two needle card L-shaped clamps 11, and a needle card 13 is provided at the bottom of the two needle card L-shaped clamps 11.

[0048] As can be seen in this embodiment, the needle card 13 is manually placed on the needle card positioning block 12 and inserted into the test system box 4. The needle card L-shaped clamp 11 is used to compress the needle card 13. The two sides of the test system box 4 are fastened with the test system bridge block 1 6, and the bridge blocks 2 on both sides are fixed to the R-axis disk 9. In this way, the test system box 4, R-axis disk 9, needle card 13, and needle card fixing module are designed as a whole. When the disk rotates, the needle card 13 and the test system box 4 rotate together.

[0049] The disc placed between the two R-axis discs 9 is designed with three sets of evenly distributed high-precision micro deep hook bearing clearances to ensure that the disc's rotational clearance is less than 0.005mm and also ensure smooth disc rotation;

[0050] The overall test system module is designed with a differential head (scale 0.01mm) and a tension spring on the bridge block on the left. A spring is designed at the lower left corner of the disc. In the natural state, the spring pushes the disc to the right, and the tension spring tightens the disc. If the needle card 13R axis is found to be deviated, just adjust the differential head to find the accurate position of the needle card 13R axis;

[0051] The entire debugging system is fixed by four M8 fixing screws and four adjusting screws to the parallel adjustment plate. The needle card 13 is put on the machine to verify that the left and right positions of the needle are tilted. The adjusting screws at the four corners are adjusted until the left and right positions of the needle card 13 are parallel.

[0052] Example 2:

[0053] This embodiment provides a device for adjusting the flatness of a thermal printer thermal sheet test pin card, comprising:

[0054] A fixed plate 1 is provided with a test system box 4 on the fixed plate 1. One side of the test system box 4 is symmetrically provided with a test system fixed upper and lower adjustment block 5. One side of each of the two test system fixed upper and lower adjustment blocks 5 is provided with a test system bridge block 1 6. The bottom of each of the test system bridge blocks 1 6 is provided with a bridge 2 8. One side of each of the two bridge 2 8 is provided with an R-axis adjustment differential head 7;

[0055] The parallel adjustment plate 2 is arranged on the bottom side of the fixed plate 1, and the two R-axis adjustment differential heads 7 are located above the parallel adjustment plate 2;

[0056] The R-axis disc 9 is arranged in the parallel adjustment plate 2. The R-axis disc 9 is connected to two needle card L-shaped clamps 11 through a number of needle card quick-release hand screws 10. A needle card positioning block 12 is provided on one side of the two needle card L-shaped clamps 11, and a needle card 13 is provided at the bottom of the two needle card L-shaped clamps 11.

[0057] As can be seen in this embodiment, the needle card 13 is manually placed on the needle card positioning block 12 and inserted into the test system box 4. The needle card L-shaped clamp 11 is used to compress the needle card 13. The two sides of the test system box 4 are fastened with the test system bridge block 1 6, and the bridge blocks 2 on both sides are fixed to the R-axis disk 9. In this way, the test system box 4, R-axis disk 9, needle card 13, and needle card fixing module are designed as a whole. When the disk rotates, the needle card 13 and the test system box 4 rotate together.

[0058] The disc placed between the two R-axis discs 9 is designed with three sets of evenly distributed high-precision micro deep hook bearing clearances to ensure that the disc's rotational clearance is less than 0.005mm and also ensure smooth disc rotation;

[0059] The overall test system module is designed with a differential head (scale 0.01mm) and a tension spring on the bridge block on the left. A spring is designed at the lower left corner of the disc. In the natural state, the spring pushes the disc to the right, and the tension spring tightens the disc. If the needle card 13R axis is found to be deviated, just adjust the differential head to find the accurate position of the needle card 13R axis;

[0060] The entire debugging system is fixed by four M8 fixing screws and four adjusting screws to the parallel adjustment plate. The needle card 13 is put on the machine to verify that the left and right positions of the needle are tilted. The adjusting screws at the four corners are adjusted until the left and right positions of the needle card 13 are parallel.

[0061] The test system box 4 is fixed to the fixing plate 1 by a plurality of screws, and the test system fixed upper and lower adjustment blocks 5 are fixed to the test system box 4 by a plurality of screws.

[0062] It can be seen from this embodiment that the structure of the test system box 4, the fixing plate 1 and the test system fixing upper and lower adjustment blocks 5 is ensured to be fixed.

[0063] Example 3:

[0064] This embodiment provides a device for adjusting the flatness of a thermal printer thermal sheet test pin card, comprising:

[0065] A fixed plate 1 is provided with a test system box 4 on the fixed plate 1. One side of the test system box 4 is symmetrically provided with a test system fixed upper and lower adjustment block 5. One side of each of the two test system fixed upper and lower adjustment blocks 5 is provided with a test system bridge block 1 6. The bottom of each of the test system bridge blocks 1 6 is provided with a bridge 2 8. One side of each of the two bridge 2 8 is provided with an R-axis adjustment differential head 7;

[0066] The parallel adjustment plate 2 is arranged on the bottom side of the fixed plate 1, and the two R-axis adjustment differential heads 7 are located above the parallel adjustment plate 2;

[0067] The R-axis disc 9 is arranged in the parallel adjustment plate 2. The R-axis disc 9 is connected to two needle card L-shaped clamps 11 through a number of needle card quick-release hand screws 10. A needle card positioning block 12 is provided on one side of the two needle card L-shaped clamps 11, and a needle card 13 is provided at the bottom of the two needle card L-shaped clamps 11.

[0068] As can be seen in this embodiment, the needle card 13 is manually placed on the needle card positioning block 12 and inserted into the test system box 4. The needle card L-shaped clamp 11 is used to compress the needle card 13. The two sides of the test system box 4 are fastened with the test system bridge block 1 6, and the bridge blocks 2 on both sides are fixed to the R-axis disk 9. In this way, the test system box 4, R-axis disk 9, needle card 13, and needle card fixing module are designed as a whole. When the disk rotates, the needle card 13 and the test system box 4 rotate together.

[0069] The disc placed between the two R-axis discs 9 is designed with three sets of evenly distributed high-precision micro deep hook bearing clearances to ensure that the disc's rotational clearance is less than 0.005mm and also ensure smooth disc rotation;

[0070] The overall test system module is designed with a differential head (scale 0.01mm) and a tension spring on the bridge block on the left. A spring is designed at the lower left corner of the disc. In the natural state, the spring pushes the disc to the right, and the tension spring tightens the disc. If the needle card 13R axis is found to be deviated, just adjust the differential head to find the accurate position of the needle card 13R axis;

[0071] The entire debugging system is fixed by four M8 fixing screws and four adjusting screws to the parallel adjustment plate. The needle card 13 is put on the machine to verify that the left and right positions of the needle are tilted. The adjusting screws at the four corners are adjusted until the left and right positions of the needle card 13 are parallel.

[0072] The test system box 4 is fixed to the fixing plate 1 by a plurality of screws, and the test system fixed upper and lower adjustment blocks 5 are fixed to the test system box 4 by a plurality of screws.

[0073] It can be seen from this embodiment that the structure of the test system box 4, the fixing plate 1 and the test system fixing upper and lower adjustment blocks 5 is ensured to be fixed.

[0074] The test system bridge block 1 6 is rotatably connected to the test system fixed upper and lower adjustment block 5, and the bridge 2 8 is fixed to the test system bridge block 1 6 by a number of screws.

[0075] It can be seen from this embodiment that the structural stability of the test system bridge block 1 6 and the test system fixed upper and lower adjustment block 5 is ensured, and the structural stability of the bridge 2 8 and the test system bridge block 1 6 is ensured.

[0076] Example 4:

[0077] This embodiment provides a device for adjusting the flatness of a thermal printer thermal sheet test pin card, comprising:

[0078] A fixed plate 1 is provided with a test system box 4 on the fixed plate 1. One side of the test system box 4 is symmetrically provided with a test system fixed upper and lower adjustment block 5. One side of each of the two test system fixed upper and lower adjustment blocks 5 is provided with a test system bridge block 1 6. The bottom of each of the test system bridge blocks 1 6 is provided with a bridge 2 8. One side of each of the two bridge 2 8 is provided with an R-axis adjustment differential head 7;

[0079] The parallel adjustment plate 2 is arranged on the bottom side of the fixed plate 1, and the two R-axis adjustment differential heads 7 are located above the parallel adjustment plate 2;

[0080] The R-axis disc 9 is arranged in the parallel adjustment plate 2. The R-axis disc 9 is connected to two needle card L-shaped clamps 11 through a number of needle card quick-release hand screws 10. A needle card positioning block 12 is provided on one side of the two needle card L-shaped clamps 11, and a needle card 13 is provided at the bottom of the two needle card L-shaped clamps 11.

[0081] As can be seen in this embodiment, the needle card 13 is manually placed on the needle card positioning block 12 and inserted into the test system box 4. The needle card L-shaped clamp 11 is used to compress the needle card 13. The two sides of the test system box 4 are fastened with the test system bridge block 1 6, and the bridge blocks 2 on both sides are fixed to the R-axis disk 9. In this way, the test system box 4, R-axis disk 9, needle card 13, and needle card fixing module are designed as a whole. When the disk rotates, the needle card 13 and the test system box 4 rotate together.

[0082] The disc placed between the two R-axis discs 9 is designed with three sets of evenly distributed high-precision micro deep hook bearing clearances to ensure that the disc's rotational clearance is less than 0.005mm and also ensure smooth disc rotation;

[0083] The overall test system module is designed with a differential head (scale 0.01mm) and a tension spring on the bridge block on the left. A spring is designed at the lower left corner of the disc. In the natural state, the spring pushes the disc to the right, and the tension spring tightens the disc. If the needle card 13R axis is found to be deviated, just adjust the differential head to find the accurate position of the needle card 13R axis;

[0084] The entire debugging system is fixed by four M8 fixing screws and four adjusting screws to the parallel adjustment plate. The needle card 13 is put on the machine to verify that the left and right positions of the needle are tilted. The adjusting screws at the four corners are adjusted until the left and right positions of the needle card 13 are parallel.

[0085] The test system box 4 is fixed to the fixing plate 1 by a plurality of screws, and the test system fixed upper and lower adjustment blocks 5 are fixed to the test system box 4 by a plurality of screws.

[0086] It can be seen from this embodiment that the structure of the test system box 4, the fixing plate 1 and the test system fixing upper and lower adjustment blocks 5 is ensured to be fixed.

[0087] The test system bridge block 1 6 is rotatably connected to the test system fixed upper and lower adjustment block 5, and the bridge 2 8 is fixed to the test system bridge block 1 6 by a number of screws.

[0088] It can be seen from this embodiment that the structural stability of the test system bridge block 1 6 and the test system fixed upper and lower adjustment block 5 is ensured, and the structural stability of the bridge 2 8 and the test system bridge block 1 6 is ensured.

[0089] The R-axis adjustment differential head 7 is fixed to one side of the bridge 2 8 by a plurality of screws.

[0090] It can be seen from this embodiment that the structures of the R-axis adjustment differential head 7 and the bridge 2 8 are guaranteed to be stable.

[0091] Example 5:

[0092] This embodiment provides a device for adjusting the flatness of a thermal printer thermal sheet test pin card. In addition to the technical solutions of the above embodiments, it also has the following technical features: the parallel adjustment plate 2 is tightly welded to the bottom of the fixed plate 1.

[0093] It can be seen from this embodiment that the structures of the parallel adjustment plate 2 and the fixing plate 1 are ensured to be stable.

[0094] Example 6:

[0095] This embodiment provides a device for adjusting the flatness of a thermal printer thermal sheet test pin card. In addition to the technical solutions of the above embodiments, it also has the following technical features: the spacing between the R-axis adjustment micrometer head 7 and the adjustment plate 2 is 0.5-1 cm.

[0096] It can be seen from this embodiment that the R-axis adjustment differential head 7 has sufficient space for movement.

[0097] Example 7:

[0098] This embodiment provides a device for adjusting the flatness of a pin card for testing a thermal sheet of a thermal printer. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: the pin card quick-release hand screw 10 is threadedly connected to the R-axis disk 9 and the pin card L-shaped clamp 11.

[0099] It can be seen from this embodiment that the structures of the R-axis disc 9 and the needle clamp L-shaped clamp 11 are ensured to be stable, and the R-axis disc 9 can be easily removed and installed from the needle clamp L-shaped clamp 11 .

[0100] Example 8:

[0101] This embodiment provides a device for adjusting the flatness of a pin card for testing a thermal sheet of a thermal printer. In addition to the technical solutions of the above embodiments, the device also has the following technical features: the pin card L-shaped clamping block 11 is tightly welded to the pin card positioning block 12.

[0102] It can be seen from this embodiment that the structures of the needle clamp L-shaped clamping block 11 and the needle clamp positioning block 12 are ensured to be stable.

[0103] Example 9:

[0104] This embodiment provides a device for adjusting the flatness of a thermal printer thermal sheet test pin card. In addition to the technical solutions of the above embodiments, it also has the following technical features: the pin card L-shaped clamp 11 is tightly welded to the pin card 13.

[0105] It can be seen from this embodiment that the structures of the needle clamp L-shaped clamping block 11 and the needle clamp 13 are ensured to be stable.

[0106] Example 10:

[0107] This embodiment provides a device for adjusting the flatness of a pin card for testing a thermal sheet of a thermal printer. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: the flatness of the pin card positioning block 12 is less than 0.007 mm, and the flatness of the groove surface of the parallel adjustment plate 2 is less than 0.005 mm.

[0108] It can be seen from this embodiment that to ensure that the needle card 13R axis is not shifted, it is only necessary to adjust the micrometer head to rotate and find the accurate position of the needle card 13R axis.

[0109] Working Principle: The needle card 13 is manually placed on the needle card positioning block 12 and inserted into the test system box 4. The needle card L-shaped clamp 11 is used to press the needle card 13. The two sides of the test system box 4 are fastened with the test system bridge block 1 6. The bridge blocks 2 on both sides 8 are fixed to the R-axis disk 9. In this way, the test system box 4, R-axis disk 9, needle card 13, and needle card fixing module are designed as a whole. When the disk rotates, the needle card 13 and the test system box 4 rotate together.

[0110] The disc placed between the two R-axis discs 9 is designed with three sets of evenly distributed high-precision micro deep hook bearing clearances to ensure that the disc's rotational clearance is less than 0.005mm and also ensure smooth disc rotation;

[0111] The overall test system module is designed with a differential head (scale 0.01mm) and a tension spring on the bridge block on the left. A spring is designed at the lower left corner of the disc. In the natural state, the spring pushes the disc to the right, and the tension spring tightens the disc. If the needle card 13R axis is found to be deviated, just adjust the differential head to find the accurate position of the needle card 13R axis;

[0112] The entire debugging system is fixed by four M8 fixing screws and four adjusting screws to the parallel adjustment plate. The needle card 13 is put on the machine to verify that the left and right positions of the needle are tilted. The adjusting screws at the four corners are adjusted until the left and right positions of the needle card 13 are parallel.

[0113] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A device for adjusting the flatness of a thermal printer thermal sheet test pin card, characterized in that: include: A fixed plate (1), wherein a test system box (4) is provided on the fixed plate (1), a test system fixed upper and lower adjustment block (5) is symmetrically provided on one side of the test system box (4), a test system bridge block 1 (6) is provided on one side of two test system fixed upper and lower adjustment blocks (5), a bridge 2 (8) is provided on the bottom of each test system bridge block 1 (6), and an R-axis adjustment differential head (7) is provided on one side of each two bridges 2 (8); A parallel adjustment plate (2), the parallel adjustment plate (2) being arranged on the bottom side of the fixed plate (1), and two R-axis adjustment differential heads (7) being located above the parallel adjustment plate (2); An R-axis disc (9) is provided in the parallel adjustment plate (2), and the R-axis disc (9) is connected to two needle card L-shaped clamps (11) via a plurality of needle card quick-release hand screws (10), and a needle card positioning block (12) is provided on one side of the two needle card L-shaped clamps (11), and a needle card (13) is provided at the bottom of the two needle card L-shaped clamps (11).

2. The device for adjusting the flatness of a thermal printer thermal sheet test pin card according to claim 1, characterized in that: The test system box (4) is fixed to the fixing plate (1) by a plurality of screws, and the test system fixed upper and lower adjustment blocks (5) are fixed to the test system box (4) by a plurality of screws.

3. The device for adjusting the flatness of a thermal printer thermal sheet test pin card according to claim 1, characterized in that: The test system bridge block 1 (6) is rotatably connected to the test system fixed upper and lower adjustment block (5), and the bridge 2 (8) is fixed to the test system bridge block 1 (6) by a plurality of screws.

4. The device for adjusting the flatness of a thermal printer thermal sheet test pin card according to claim 1, characterized in that: The R-axis adjustment differential head (7) is fixed to one side of the bridge 2 (8) by a plurality of screws.

5. The device for adjusting the flatness of a thermal printer thermal sheet test pin card according to claim 1, characterized in that: The parallel adjustment plate (2) is tightly welded to the bottom of the fixed plate (1).

6. The device for adjusting the flatness of a thermal printer thermal sheet test pin card according to claim 1, characterized in that: The distance between the R-axis adjustment micrometer head (7) and the parallel adjustment plate (2) is 0.5-1 cm.

7. The device for adjusting the flatness of a thermal printer thermal sheet test pin card according to claim 1, characterized in that: The needle card quick-release hand screw (10) is threadedly connected to the R-axis disc (9) and the needle card L-shaped clamp (11).

8. The device for adjusting the flatness of a thermal printer thermal sheet test pin card according to claim 1, characterized in that: The needle card L-shaped clamping block (11) and the needle card positioning block (12) are tightly welded.

9. The device for adjusting the flatness of a thermal printer thermal sheet test pin card according to claim 1, characterized in that: The needle clamp L-shaped clamping block (11) and the needle clamp (13) are tightly welded.

10. The device for adjusting the flatness of a thermal printer thermal sheet test pin card according to claim 1, characterized in that: The flatness of the clamping surface of the needle clamp positioning block (12) is less than 0.007 mm, and the flatness of the recessed surface of the parallel adjustment plate (2) is less than 0.005 mm.

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