Flatness adjusting device for test needle card of thermosensitive sheet of thermal printer

Abstract

The invention belongs to the technical field of printers, and particularly relates to a thermal printer thermosensitive piece test needle card flatness adjusting device which comprises a fixing plate, a test system box is arranged on the fixing plate, and a test system fixing upper adjusting block and a test system fixing lower adjusting block are symmetrically arranged on one side of the test system box. One side of each of the two test system fixing up-down adjusting blocks is provided with a first test system bridging block, the bottom of each of the first test system bridging blocks is provided with a second bridging, and one side of each of the two second bridging is provided with an R-axis adjusting micrometer head; the parallel adjusting plate is arranged on the bottom side of the fixing plate, and the two R-axis adjusting micrometer heads are located above the parallel adjusting plate; the R-axis disc is arranged in the parallel adjusting plate, and the R-axis disc is connected with two needle clamp L-shaped clamping blocks through a plurality of needle clamp quick-release hand screws, and it is ensured that the whole device is easy and convenient to operate, low in installation requirement and high in flatness adjusting and positioning precision; the needle clamp can be movably adjusted up and down, and the R-axis angle adjusting precision is high; and the cost is low.

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 is a device that prints images or text by heating a special coating on the surface of thermal paper. Its working principle is to use the heating element in the thermal print head to heat the surface of the thermal paper, causing the thermal coating of the paper to undergo a chemical reaction, thereby leaving a pattern or text. Thermal printers are widely used in ticket printing, label printing, receipt printing and other fields because they do not require ink or ribbons, and have the advantage of fast printing speed.

[0003] During the operation of a thermal printer, the accuracy and stability of the thermal print head directly affect the print quality, especially in applications with high precision requirements, the performance of the print head is particularly important. A thermal print head is usually composed of multiple heating elements, which need to maintain a certain contact pressure with the surface of the thermal paper to ensure uniform and stable heating, thereby ensuring print quality.

[0004] However, with the continuous development of thermal printers and the complexity of the application environment, the contact accuracy between the traditional print head 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 printing 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 a situation where the local pressure is too large or too small, it will lead to a decrease in print quality. 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 sheet test pin card of a thermal printer, comprising: A fixed plate, the fixed plate is provided with a test system box, one side of the test system box is symmetrically provided with a test system fixed upper and lower adjustment block, one side of the two test system fixed upper and lower adjustment blocks is provided with a test system bridge block 1, the bottom of the test system bridge block 1 is provided with a bridge 2, and one side of the two bridges 2 is provided with an R-axis adjustment differential head; A parallel adjustment plate, wherein the parallel adjustment plate is arranged on the bottom side of the fixed plate, and two R-axis adjustment micrometer heads are located above the parallel adjustment plate; 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 plurality 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.

[0007] 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 is pressed by the needle card L-shaped clamp block; 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 disc; in this way, the test system box, the R-axis disc, the needle card, and the needle card fixing module are designed as a whole, and when the disc rotates, the needle card and the test system box rotate together; The disc placed between the two R-axis discs is designed with three sets of high-precision micro deep hook bearing clearances evenly distributed to ensure that the disc's rotation clearance is less than 0.005mm and that the disc rotates smoothly; The overall test system module is designed with a differential head (scale 0.01mm) and a tension spring on the left bridge block. 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 accurate position of the needle card R axis; The entire debugging system uses 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 needle is tilted to the left and right positions, and the adjusting screws at the four corners are adjusted until the needle card is parallel to the left and right.

[0008] 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.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] In the above technical solution, further, the R-axis adjustment micrometer head is fixed to one side of the bridge 2 by a plurality of screws.

[0013] In this technical solution, the structural stability of the R-axis adjustment differential head and the bridge 2 is ensured.

[0014] In the above technical solution, further, the parallel adjustment plate is tightly welded to the bottom of the fixed plate.

[0015] In this technical solution, the structural stability of the parallel adjustment plate and the fixed plate is ensured.

[0016] In the above technical solution, further, the distance between the R-axis adjustment micrometer head and the adjustment plate is 0.5-1 cm.

[0017] In this technical solution, the R-axis adjustment differential head has sufficient space for movement.

[0018] 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.

[0019] 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.

[0020] In the above technical solution, further, the needle clamp L-shaped clamp block is tightly welded to the needle clamp positioning block.

[0021] In this technical solution, the structural stability of the needle clamp L-shaped clamp block and the needle clamp positioning block is ensured.

[0022] In the above technical solution, further, the needle clamp L-shaped clamp block is tightly welded to the needle clamp.

[0023] In this technical solution, the structural stability of the needle card L-shaped clamp block and the needle card is ensured.

[0024] In the above technical solution, further, the flatness of the needle clamp positioning block surface is less than 0.007 mm, and the flatness of the parallel adjustment plate groove surface is less than 0.005 mm.

[0025] In this technical solution, to ensure that the R-axis of the needle card is not misaligned, it is only necessary to adjust the rotation of the micrometer head to find the exact position of the R-axis of the needle card.

[0026] The beneficial effects of the present invention are: 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

[0027] Figure 1 It is one of the overall structural schematic diagrams of the present invention; Figure 2This is the second schematic diagram of the overall structure of the present invention.

[0028] The symbols in the figure are: 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 one; 7. R-axis adjustment micrometer head; 8. Bridge two; 9. R-axis disc; 10. Needle card quick release thumb screw; 11. Needle card L-shaped clamp block; 12. Needle card positioning block; 13. Needle card. DETAILED DESCRIPTION

[0029] The following will be combined with the 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, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0030] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. 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 drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present 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 can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. 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.

[0032] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0033] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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 sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment 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 reverse 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.

[0034] Embodiment 1: 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: A fixed plate 1, on which a test system box 4 is arranged, 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 two test system fixed upper and lower adjustment blocks 5 is provided with a test system bridge block 1 6, the bottom of the test system bridge block 1 6 is provided with a bridge 2 8, and one side of the two bridges 2 8 is provided with an R-axis adjustment differential head 7; A parallel adjustment plate 2, the parallel adjustment plate 2 is arranged on the bottom side of the fixed plate 1, and two R-axis adjustment differential heads 7 are located above the parallel adjustment plate 2; R-axis disc 9, the R-axis disc 9 is arranged in the parallel adjustment plate 2, and the R-axis disc 9 is connected to two needle card L-shaped clamps 11 through a plurality 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.

[0035] It can be seen from this embodiment that the needle card 13 is manually placed on the needle card positioning block 12 and inserted into the test system box 4, and the needle card L-shaped clamp block 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, and the bridge blocks 2 8 on both sides are fixed to the R-axis disc 9; in this way, the test system box 4, the R-axis disc 9, the needle card 13, and the needle card fixing module are designed as a whole, and when the disc rotates, the needle card 13 and the test system box 4 rotate together; 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 rotation clearance is less than 0.005mm and that the disc rotates smoothly; The overall test system module is designed with a differential head (scale 0.01mm) and a tension spring on the left bridge block. 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; The entire debugging system uses four M8 fixing screws and four adjusting screws to fix the parallel adjustment plate. The needle card 13 is put on the machine to verify that the left and right positions of the needles are tilted, and the adjusting screws at the four corners are adjusted until the needle card 13 is parallel to the left and right.

[0036] Embodiment 2: This embodiment provides a device for adjusting the flatness of a thermal sheet test pin card of a thermal printer, comprising: A fixed plate 1, on which a test system box 4 is arranged, 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 two test system fixed upper and lower adjustment blocks 5 is provided with a test system bridge block 1 6, the bottom of the test system bridge block 1 6 is provided with a bridge 2 8, and one side of the two bridges 2 8 is provided with an R-axis adjustment differential head 7; A parallel adjustment plate 2, the parallel adjustment plate 2 is arranged on the bottom side of the fixed plate 1, and two R-axis adjustment differential heads 7 are located above the parallel adjustment plate 2; R-axis disc 9, the R-axis disc 9 is arranged in the parallel adjustment plate 2, and the R-axis disc 9 is connected to two needle card L-shaped clamps 11 through a plurality 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.

[0037] It can be seen from this embodiment that the needle card 13 is manually placed on the needle card positioning block 12 and inserted into the test system box 4, and the needle card L-shaped clamp block 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, and the bridge blocks 2 8 on both sides are fixed to the R-axis disc 9; in this way, the test system box 4, the R-axis disc 9, the needle card 13, and the needle card fixing module are designed as a whole, and when the disc rotates, the needle card 13 and the test system box 4 rotate together; 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 rotation clearance is less than 0.005mm and that the disc rotates smoothly; The overall test system module is designed with a differential head (scale 0.01mm) and a tension spring on the left bridge block. 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; The entire debugging system uses four M8 fixing screws and four adjusting screws to fix the parallel adjustment plate. The needle card 13 is put on the machine to verify that the left and right positions of the needles are tilted, and the adjusting screws at the four corners are adjusted until the needle card 13 is parallel to the left and right.

[0038] The test system box 4 is fixed to the fixing plate 1 by a plurality of screws, and the test system fixing upper and lower adjustment blocks 5 are fixed to the test system box 4 by a plurality of screws.

[0039] 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.

[0040] Embodiment 3: This embodiment provides a device for adjusting the flatness of a thermal sheet test pin card of a thermal printer, comprising: A fixed plate 1, on which a test system box 4 is arranged, 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 two test system fixed upper and lower adjustment blocks 5 is provided with a test system bridge block 1 6, the bottom of the test system bridge block 1 6 is provided with a bridge 2 8, and one side of the two bridges 2 8 is provided with an R-axis adjustment differential head 7; A parallel adjustment plate 2, the parallel adjustment plate 2 is arranged on the bottom side of the fixed plate 1, and two R-axis adjustment differential heads 7 are located above the parallel adjustment plate 2; R-axis disc 9, the R-axis disc 9 is arranged in the parallel adjustment plate 2, and the R-axis disc 9 is connected to two needle card L-shaped clamps 11 through a plurality 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.

[0041] It can be seen from this embodiment that the needle card 13 is manually placed on the needle card positioning block 12 and inserted into the test system box 4, and the needle card L-shaped clamp block 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, and the bridge blocks 2 8 on both sides are fixed to the R-axis disc 9; in this way, the test system box 4, the R-axis disc 9, the needle card 13, and the needle card fixing module are designed as a whole, and when the disc rotates, the needle card 13 and the test system box 4 rotate together; 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 rotation clearance is less than 0.005mm and that the disc rotates smoothly; The overall test system module is designed with a differential head (scale 0.01mm) and a tension spring on the left bridge block. 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; The entire debugging system uses four M8 fixing screws and four adjusting screws to fix the parallel adjustment plate. The needle card 13 is put on the machine to verify that the left and right positions of the needles are tilted, and the adjusting screws at the four corners are adjusted until the needle card 13 is parallel to the left and right.

[0042] The test system box 4 is fixed to the fixing plate 1 by a plurality of screws, and the test system fixing upper and lower adjustment blocks 5 are fixed to the test system box 4 by a plurality of screws.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] Embodiment 4: This embodiment provides a device for adjusting the flatness of a thermal sheet test pin card of a thermal printer, comprising: A fixed plate 1, on which a test system box 4 is arranged, 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 two test system fixed upper and lower adjustment blocks 5 is provided with a test system bridge block 1 6, the bottom of the test system bridge block 1 6 is provided with a bridge 2 8, and one side of the two bridges 2 8 is provided with an R-axis adjustment differential head 7; A parallel adjustment plate 2, the parallel adjustment plate 2 is arranged on the bottom side of the fixed plate 1, and two R-axis adjustment differential heads 7 are located above the parallel adjustment plate 2; R-axis disc 9, the R-axis disc 9 is arranged in the parallel adjustment plate 2, and the R-axis disc 9 is connected to two needle card L-shaped clamps 11 through a plurality 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.

[0047] It can be seen from this embodiment that the needle card 13 is manually placed on the needle card positioning block 12 and inserted into the test system box 4, and the needle card L-shaped clamp block 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, and the bridge blocks 2 8 on both sides are fixed to the R-axis disc 9; in this way, the test system box 4, the R-axis disc 9, the needle card 13, and the needle card fixing module are designed as a whole, and when the disc rotates, the needle card 13 and the test system box 4 rotate together; 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 rotation clearance is less than 0.005mm and that the disc rotates smoothly; The overall test system module is designed with a differential head (scale 0.01mm) and a tension spring on the left bridge block. 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; The entire debugging system uses four M8 fixing screws and four adjusting screws to fix the parallel adjustment plate. The needle card 13 is put on the machine to verify that the left and right positions of the needles are tilted, and the adjusting screws at the four corners are adjusted until the needle card 13 is parallel to the left and right.

[0048] The test system box 4 is fixed to the fixing plate 1 by a plurality of screws, and the test system fixing upper and lower adjustment blocks 5 are fixed to the test system box 4 by a plurality of screws.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] The R-axis adjustment differential head 7 is fixed to one side of the bridge 2 8 by a plurality of screws.

[0053] It can be seen from this embodiment that the structures of the R-axis adjustment micrometer head 7 and the bridge 2 8 are guaranteed to be stable.

[0054] Embodiment 5: 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.

[0055] 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.

[0056] Embodiment 6: 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.

[0057] It can be seen from this embodiment that the R-axis adjustment micrometer head 7 has sufficient movable space.

[0058] Embodiment 7: The present 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, the device 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.

[0059] It can be seen from this embodiment that the structures of the R-axis disc 9 and the needle clamp L-shaped clamp block 11 are ensured to be stable, and it is also convenient to remove and install the R-axis disc 9 from the needle clamp L-shaped clamp block 11.

[0060] Embodiment 8: 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 clamp block 11 is tightly welded to the pin card positioning block 12.

[0061] It can be seen from this embodiment that the structures of the needle clamp L-shaped clamp block 11 and the needle clamp positioning block 12 are ensured to be stable.

[0062] Embodiment 9: 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, the device also has the following technical features: the pin card L-shaped clamp 11 is tightly welded to the pin card 13.

[0063] It can be seen from this embodiment that the structures of the needle clamp L-shaped clamp block 11 and the needle clamp 13 are ensured to be stable.

[0064] Embodiment 10: The present 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, the device 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.

[0065] 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.

[0066] Working principle: The needle card 13 is manually placed on the needle card positioning block 12 and inserted into the test system box 4, and the needle card L-shaped clamp block 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, and the bridge blocks 2 8 on both sides are fixed on the R-axis disc 9; in this way, the test system box 4, the R-axis disc 9, the needle card 13, and the needle card fixing module are designed as a whole. When the disc rotates, the needle card 13 and the test system box 4 rotate together; 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 rotation clearance is less than 0.005mm and that the disc rotates smoothly; The overall test system module is designed with a differential head (scale 0.01mm) and a tension spring on the left bridge block. 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; The entire debugging system uses four M8 fixing screws and four adjusting screws to fix the parallel adjustment plate. The needle card 13 is put on the machine to verify that the left and right positions of the needles are tilted, and the adjusting screws at the four corners are adjusted until the needle card 13 is parallel to the left and right.

[0067] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments 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 the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present 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 of the test system fixed upper and lower adjustment blocks (5), a bridge 2 (8) is provided on the bottom of each of the test system bridge blocks 1 (6), and an R-axis adjustment differential head (7) is provided on one side of each of the two bridges 2 (8); A parallel adjustment plate (2), wherein the parallel adjustment plate (2) is arranged on the bottom side of the fixed plate (1), and two R-axis adjustment differential heads (7) are located above the parallel adjustment plate (2); An R-axis disc (9) is arranged in a parallel adjustment plate (2), and the R-axis disc (9) is connected to two needle clamp L-shaped clamp blocks (11) via a plurality of needle clamp quick-release hand screws (10), and a needle clamp positioning block (12) is provided on one side of the two needle clamp L-shaped clamp blocks (11), and a needle clamp (13) is provided at the bottom of the two needle clamp L-shaped clamp blocks (11).

2. The flatness adjustment device for the 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 means of a plurality of screws, and the test system fixed upper and lower adjustment blocks (5) are fixed to the test system box (4) by means of a plurality of screws.

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

5. The flatness adjustment device for the thermal sheet test pin card of a thermal printer 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 flatness adjustment device for the 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 adjustment plate (2) is 0.5-1 cm.

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

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

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

10. The flatness adjustment device for the 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 groove surface of the parallel adjustment plate (2) is less than 0.005 mm.

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