Test fixture of thermal printer

Abstract

The invention provides a test fixture of a thermal printer. The test fixture comprises a first bottom plate, a test mechanism, a bearing mechanism, an adjusting mechanism and an accommodating mechanism. The printer mainboard is placed on the carrier plate, the corner of the printer mainboard is limited between the limiting plates, the carrier plate is moved, so that each port of the printer mainboard is subjected to a butt joint test with the first network port test module, the second network port test module, the data test module, the serial port test module and the power supply plugging test module, and the test efficiency is improved through modular test; and the test is quicker. The testing jig is arranged in the shell in a sliding mode, specifically, one end face of the first bottom plate is fixedly connected with the telescopic end of the electric telescopic rod, so that the testing jig is pushed out of the shell to facilitate testing, the whole testing jig is retracted into the shell when the testing jig does not need to be used, and the protection effect can be achieved; and the influence of falling dust on the test effect of each test module can also be avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of thermal printers, and in particular relates to a test fixture for a thermal printer. Background Art

[0002] A thermal printer is a printer that uses a thermal print head to produce a chemical reaction on thermal paper to form text or images. Thermal printers are widely used in various fields, such as printing cash register receipts in supermarkets, printing menus in the catering industry, printing delivery labels in the express delivery industry, etc. It plays an important role in some scenarios where paper vouchers need to be output quickly.

[0003] During the production process of thermal printers, it is necessary to test the printer motherboard. Products that pass the test are considered qualified products, and unqualified products are sorted out. Only qualified products can be shipped and assembled.

[0004] Existing test fixtures are usually exposed in the workshop, and dust and impurities will adhere to the test ports, thus affecting the test results. Summary of the invention

[0005] The object of the present invention is to provide a test fixture for a thermal printer to solve the problems raised in the above background technology.

[0006] In view of this, the present invention provides a test fixture for a thermal printer, comprising: First base plate; A testing mechanism, arranged on the first bottom plate and used for plugging and cooperating with the printer main board to implement functional testing, the testing mechanism being connected to the control system; A carrying mechanism, used for carrying the printer mainboard and slidably disposed on the first bottom plate and relatively close to or away from the testing mechanism; An adjusting mechanism, arranged on the carrying mechanism and used for adjusting the width to adapt to printer mainboards of different widths; The accommodating mechanism comprises an accommodating portion, wherein the test fixture can be entirely accommodated in the accommodating portion, and the accommodating mechanism further comprises a driving portion, wherein the driving portion is used to drive the test fixture to be retracted into the accommodating portion or pushed out of the accommodating portion.

[0007] In the present invention, a further implementation scheme is that the supporting mechanism includes a guide rail, a slider and a carrier plate, the guide rail is fixed on the first bottom plate, the carrier plate slides on the guide rail through the slider, a limit plate is provided on the carrier plate, the printer mainboard is limited between the limit plates, the adjustment mechanism includes an adjustment rod, a slide groove is provided on the carrier plate, the bottom of the limit plate is slidably connected to the slide groove, the adjustment rod penetrates into the slide groove from the side of the carrier plate and is threadedly connected to the limit plate, and the spacing between the limit blocks is adjusted by rotating the adjustment rod.

[0008] In the present invention, a further implementation scheme is that the testing mechanism includes a first network port test module, a second network port test module, a data test module, a serial port test module and a power plug-in test module, and the first network port test module, the second network port test module, the data test module, the serial port test module and the power plug-in test module are all fixed on the positioning plate.

[0009] In the present invention, a further implementation scheme is that the accommodating mechanism includes a second base plate, a plurality of electric telescopic rods are installed on the upper end of the second base plate, the upper ends of the plurality of electric telescopic rods are commonly fixedly connected to a shell, a push rod is arranged on the left side of the shell, a suction fan and a filter box are arranged on the right side of the shell, the suction fan is located below the filter box, a test fixture is arranged in the shell, a retractable mechanism is arranged in the shell, the retractable mechanism is used to retract the test fixture, a cleaning mechanism is arranged in the shell, and the cleaning mechanism and the retractable mechanism cooperate with each other.

[0010] In the present invention, a further implementation scheme is that the retractable mechanism includes a retractable cavity arranged in the shell, and a rotating shaft is rotatably connected between the front and rear inner walls of the retractable cavity. The rotating shaft passes through the left side of the test fixture and is fixedly connected to the test fixture.

[0011] In the present invention, a further implementation scheme is that a mounting plate is installed on the rear side of the retractable chamber, a motor is installed on the mounting plate, the end of the output shaft of the motor is fixedly connected to a first gear, the rear side of the rotating shaft extends to the outside, and is fixedly connected to a second gear meshing with the first gear.

[0012] In a further embodiment of the present invention, the number of teeth of the second gear is twice the number of teeth of the first gear.

[0013] In the present invention, a further implementation scheme is that the cleaning mechanism includes a hollow plate fixedly connected to the front side of the retractable cavity, a plurality of air suction ports are arranged in the hollow plate, a wiping sponge is arranged on the rear side of the hollow plate, and a plurality of fine holes cooperating with the air suction ports are penetrated on the wiping sponge.

[0014] In the present invention, a further implementation scheme is that the suction end of the suction fan extends to the lower end of the filter box, a filter screen is arranged in the filter box, and the left side of the filter box is connected to the hollow plate through an air pipe.

[0015] The beneficial effects of the present invention are: First, the printer main board is placed on a carrier board and the corners are limited between the limit plates. By moving the carrier board, the various ports of the printer main board are connected to the first network port test module, the second network port test module, the data test module, the serial port test module and the power plug test module for docking testing. Modular testing improves the efficiency of testing and makes testing faster.

[0016] Secondly, the limit plate can be moved and adjusted by rotating the adjusting rod to adapt to the positioning of printer mainboards of various widths.

[0017] Third, the test fixture is slidingly arranged in the shell, and specifically, one end surface of the first bottom plate is fixedly connected to the telescopic end of the electric telescopic rod, so that the test fixture can be pushed out of the shell for testing. When it is not needed, the test fixture is retracted into the shell as a whole, which can not only play a protective role, but also prevent dust from affecting the test results of each test module.

[0018] Fourthly, by setting up the suction fan and the filter box, it is not necessary to manually clean the test fixture during use. Using the machine for cleaning saves time and effort. In addition, the raised dust can be directly absorbed during use, avoiding the possibility of secondary adhesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the test fixture of the present invention; Figure 2 This is a schematic diagram of the structure of the test fixture of the present invention after removing the bearing mechanism; Figure 3 It is a structural schematic diagram of the accommodation mechanism of the present invention; Figure 4 It is a schematic diagram of the internal plane of the accommodation mechanism of the present invention; Figure 5 It is a structural schematic diagram of the hollow plate of the present invention; Figure 6 It is a transmission schematic diagram of the interior of the retractable mechanism of the present invention. DETAILED DESCRIPTION

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] Example 1 like Figure 1 and Figure 2 The present invention provides a test fixture for a thermal printer, comprising: A first bottom plate 20; A testing mechanism, arranged on the first bottom plate 20 and used for plugging and cooperating with the printer main board to implement functional testing, the testing mechanism being connected to the control system; The carrying mechanism is used to carry the printer mainboard and can be slidably arranged on the first bottom plate 20 and can be relatively close to or away from the testing mechanism; An adjusting mechanism, arranged on the carrying mechanism and used for adjusting the width to adapt to printer mainboards of different widths; The accommodating mechanism includes an accommodating portion, and the test fixture can be accommodated in the accommodating portion as a whole, and the accommodating mechanism also includes a driving portion, and the driving portion is used to drive the test fixture to be retracted into the accommodating portion or pushed out of the accommodating portion. The printer mainboard is directly placed on the bearing mechanism, and the adaptability of the printer mainboard with different widths can be adjusted through the adjustment mechanism. The bearing mechanism is pushed so that the printer mainboard is close to the test mechanism, so as to realize modular testing of the printer mainboard, which is convenient and fast with high testing efficiency.

[0026] In this embodiment, further, the bearing mechanism includes a guide rail 21, a slider 22 and a carrier plate 23. The guide rail 21 is fixed on the first base plate 20. The carrier plate 23 slides on the guide rail 21 through the slider 22. When testing, the carrier plate 23 is pushed to move the printer mainboard.

[0027] The carrier plate 23 is provided with a limiting plate 24, and the printer mainboard is limited between the limiting plates 24. The adjustment mechanism includes an adjusting rod 25. A sliding groove 26 is opened on the carrier plate 23. The bottom of the limiting plate 24 is slidably connected to the sliding groove 26. The adjusting rod 25 penetrates into the sliding groove 26 from the side of the carrier plate 23 and is threadedly connected to the limiting plate 24. The spacing between the limiting blocks is adjusted by rotating the adjusting rod 25. When it is necessary to test printer mainboards of different widths, the printer mainboard is placed between the limiting plates 24, and the adjusting rod 25 is rotated to move the position of the limiting plate 24 to adapt to the corresponding width, thereby improving the versatility of the test.

[0028] In the present embodiment, further, the testing mechanism includes a first network port test module 27, a second network port test module 28, a data test module 29, a serial port test module 30 and a power plug-in test module 31, and the first network port test module 27, the second network port test module 28, the data test module 29, the serial port test module 30 and the power plug-in test module 31 are all fixed on a positioning plate 32, and each of the above-mentioned test modules is modular, and the printer mainboard is directly connected with each test module after being pushed, so as to realize modular rapid testing.

[0029] Example 2 A test fixture for a thermal printer, comprising: A first bottom plate 20; A testing mechanism, arranged on the first bottom plate 20 and used for plugging and cooperating with the printer main board to implement functional testing, the testing mechanism being connected to the control system; The carrying mechanism is used to carry the printer mainboard and can be slidably arranged on the first bottom plate 20 and can be relatively close to or away from the testing mechanism; An adjusting mechanism, arranged on the carrying mechanism and used for adjusting the width to adapt to printer mainboards of different widths; The accommodating mechanism includes an accommodating portion, and the test fixture can be accommodated in the accommodating portion as a whole, and the accommodating mechanism also includes a driving portion, and the driving portion is used to drive the test fixture to be retracted into the accommodating portion or pushed out of the accommodating portion. The printer mainboard is directly placed on the bearing mechanism, and the adaptability of the printer mainboard with different widths can be adjusted through the adjustment mechanism. The bearing mechanism is pushed so that the printer mainboard is close to the test mechanism, so as to realize modular testing of the printer mainboard, which is convenient and fast with high testing efficiency.

[0030] In this embodiment, further, the bearing mechanism includes a guide rail 21, a slider 22 and a carrier plate 23. The guide rail 21 is fixed on the first base plate 20. The carrier plate 23 slides on the guide rail 21 through the slider 22. When testing, the carrier plate 23 is pushed to move the printer mainboard.

[0031] The carrier plate 23 is provided with a limiting plate 24, and the printer mainboard is limited between the limiting plates 24. The adjustment mechanism includes an adjusting rod 25. A sliding groove 26 is opened on the carrier plate 23. The bottom of the limiting plate 24 is slidably connected to the sliding groove 26. The adjusting rod 25 penetrates into the sliding groove 26 from the side of the carrier plate 23 and is threadedly connected to the limiting plate 24. The spacing between the limiting blocks is adjusted by rotating the adjusting rod 25. When it is necessary to test printer mainboards of different widths, the printer mainboard is placed between the limiting plates 24, and the adjusting rod 25 is rotated to move the position of the limiting plate 24 to adapt to the corresponding width, thereby improving the versatility of the test.

[0032] In the present embodiment, further, the testing mechanism includes a first network port test module 27, a second network port test module 28, a data test module 29, a serial port test module 30 and a power plug-in test module 31, and the first network port test module 27, the second network port test module 28, the data test module 29, the serial port test module 30 and the power plug-in test module 31 are all fixed on a positioning plate 32, and each of the above-mentioned test modules is modular, and the printer mainboard is directly connected with each test module after being pushed, so as to realize modular rapid testing.

[0033] like Figure 3-Figure 6 In this embodiment, the accommodating mechanism includes a second bottom plate 5, a plurality of electric telescopic rods 6 are installed on the upper end of the second bottom plate 5, the upper ends of the plurality of electric telescopic rods 6 are commonly fixedly connected with a shell 1, a push rod 3 is arranged on the left side of the shell 1, a suction fan 7 and a filter box 8 are arranged on the right side of the shell 1, the suction fan 7 is located below the filter box 8, a test fixture 20 is arranged in the shell 1, a retracting mechanism is arranged in the shell 1, and the retracting mechanism is used to retract the test fixture 20, a cleaning mechanism is arranged in the shell 1, and the cleaning mechanism and the retracting mechanism cooperate with each other.

[0034] One end surface of the first base plate 20 is fixedly connected to the telescopic end of the electric telescopic rod 6. The test fixture 20 can be adjusted by multiple electric telescopic rods 6. The test fixture 20 can be easily retracted and released by the motor 14. When testing, the test fixture is pushed out of the shell 1. When testing is not needed, the test fixture is retracted into the shell 1 as a whole, which can not only play a protective role, but also prevent dust from affecting the test effects of each test module.

[0035] Example 3 A test fixture for a thermal printer, comprising: A first bottom plate 20; A testing mechanism, arranged on the first bottom plate 20 and used for plugging and cooperating with the printer main board to implement functional testing, the testing mechanism being connected to the control system; The carrying mechanism is used to carry the printer mainboard and can be slidably arranged on the first bottom plate 20 and can be relatively close to or away from the testing mechanism; An adjusting mechanism, arranged on the carrying mechanism and used for adjusting the width to adapt to printer mainboards of different widths; The accommodating mechanism includes an accommodating portion, and the test fixture can be accommodated in the accommodating portion as a whole, and the accommodating mechanism also includes a driving portion, and the driving portion is used to drive the test fixture to be retracted into the accommodating portion or pushed out of the accommodating portion. The printer mainboard is directly placed on the bearing mechanism, and the adaptability of the printer mainboard with different widths can be adjusted through the adjustment mechanism. The bearing mechanism is pushed so that the printer mainboard is close to the test mechanism, so as to realize modular testing of the printer mainboard, which is convenient and fast with high testing efficiency.

[0036] In this embodiment, further, the bearing mechanism includes a guide rail 21, a slider 22 and a carrier plate 23. The guide rail 21 is fixed on the first base plate 20. The carrier plate 23 slides on the guide rail 21 through the slider 22. When testing, the carrier plate 23 is pushed to move the printer mainboard.

[0037] The carrier plate 23 is provided with a limiting plate 24, and the printer mainboard is limited between the limiting plates 24. The adjustment mechanism includes an adjusting rod 25. A sliding groove 26 is opened on the carrier plate 23. The bottom of the limiting plate 24 is slidably connected to the sliding groove 26. The adjusting rod 25 penetrates into the sliding groove 26 from the side of the carrier plate 23 and is threadedly connected to the limiting plate 24. The spacing between the limiting blocks is adjusted by rotating the adjusting rod 25. When it is necessary to test printer mainboards of different widths, the printer mainboard is placed between the limiting plates 24, and the adjusting rod 25 is rotated to move the position of the limiting plate 24 to adapt to the corresponding width, thereby improving the versatility of the test.

[0038] In the present embodiment, further, the testing mechanism includes a first network port test module 27, a second network port test module 28, a data test module 29, a serial port test module 30 and a power plug-in test module 31, and the first network port test module 27, the second network port test module 28, the data test module 29, the serial port test module 30 and the power plug-in test module 31 are all fixed on a positioning plate 32, and each of the above-mentioned test modules is modular, and the printer mainboard is directly connected with each test module after being pushed, so as to realize modular rapid testing.

[0039] In this embodiment, the accommodating mechanism includes a second base plate 5, a plurality of electric telescopic rods 6 are installed on the upper end of the second base plate 5, the upper ends of the plurality of electric telescopic rods 6 are commonly fixedly connected to a shell 1, a push rod 3 is arranged on the left side of the shell 1, a suction fan 7 and a filter box 8 are arranged on the right side of the shell 1, the suction fan 7 is located below the filter box 8, a test fixture 20 is arranged in the shell 1, a retractable mechanism is arranged in the shell 1, the retractable mechanism is used to retract the test fixture 20, a cleaning mechanism is arranged in the shell 1, and the cleaning mechanism and the retractable mechanism cooperate with each other.

[0040] One end surface of the first base plate 20 is fixedly connected to the telescopic end of the electric telescopic rod 6. The test fixture 20 can be adjusted by multiple electric telescopic rods 6. The test fixture 20 can be easily retracted and released by the motor 14. When testing, the test fixture is pushed out of the shell 1. When testing is not needed, the test fixture is retracted into the shell 1 as a whole, which can not only play a protective role, but also prevent dust from affecting the test effects of each test module.

[0041] In this embodiment, the retracting mechanism includes a retracting chamber 2 arranged in a shell 1, and a rotating shaft 12 is rotatably connected between the front and rear inner walls of the retracting chamber 2. The rotating shaft 12 passes through the left side of the test fixture 20 and is fixedly connected to the test fixture 20. A mounting plate 11 is installed on the rear side of the retracting chamber 2, and a motor 14 is installed on the mounting plate 11. The end of the output shaft of the motor 14 is fixedly connected to a first gear 15. The rear side of the rotating shaft 12 extends to the outside and is fixedly connected to a second gear 13 meshing with the first gear 15. The number of teeth of the second gear 13 is twice the number of teeth of the first gear 15.

[0042] Example 4 A test fixture for a thermal printer, comprising: A first bottom plate 20; A testing mechanism, arranged on the first bottom plate 20 and used for plugging and cooperating with the printer main board to implement functional testing, the testing mechanism being connected to the control system; The carrying mechanism is used to carry the printer mainboard and can be slidably arranged on the first bottom plate 20 and can be relatively close to or away from the testing mechanism; An adjusting mechanism, arranged on the carrying mechanism and used for adjusting the width to adapt to printer mainboards of different widths; The accommodating mechanism includes an accommodating portion, and the test fixture can be accommodated in the accommodating portion as a whole, and the accommodating mechanism also includes a driving portion, and the driving portion is used to drive the test fixture to be retracted into the accommodating portion or pushed out of the accommodating portion. The printer mainboard is directly placed on the bearing mechanism, and the adaptability of the printer mainboard with different widths can be adjusted through the adjustment mechanism. The bearing mechanism is pushed so that the printer mainboard is close to the test mechanism, so as to realize modular testing of the printer mainboard, which is convenient and fast with high testing efficiency.

[0043] In this embodiment, further, the bearing mechanism includes a guide rail 21, a slider 22 and a carrier plate 23. The guide rail 21 is fixed on the first base plate 20. The carrier plate 23 slides on the guide rail 21 through the slider 22. When testing, the carrier plate 23 is pushed to move the printer mainboard.

[0044] The carrier plate 23 is provided with a limiting plate 24, and the printer mainboard is limited between the limiting plates 24. The adjustment mechanism includes an adjusting rod 25. A sliding groove 26 is opened on the carrier plate 23. The bottom of the limiting plate 24 is slidably connected to the sliding groove 26. The adjusting rod 25 penetrates into the sliding groove 26 from the side of the carrier plate 23 and is threadedly connected to the limiting plate 24. The spacing between the limiting blocks is adjusted by rotating the adjusting rod 25. When it is necessary to test printer mainboards of different widths, the printer mainboard is placed between the limiting plates 24, and the adjusting rod 25 is rotated to move the position of the limiting plate 24 to adapt to the corresponding width, thereby improving the versatility of the test.

[0045] In the present embodiment, further, the testing mechanism includes a first network port test module 27, a second network port test module 28, a data test module 29, a serial port test module 30 and a power plug-in test module 31, and the first network port test module 27, the second network port test module 28, the data test module 29, the serial port test module 30 and the power plug-in test module 31 are all fixed on a positioning plate 32, and each of the above-mentioned test modules is modular, and the printer mainboard is directly connected with each test module after being pushed, so as to realize modular rapid testing.

[0046] In this embodiment, the accommodating mechanism includes a second base plate 5, a plurality of electric telescopic rods 6 are installed on the upper end of the second base plate 5, the upper ends of the plurality of electric telescopic rods 6 are commonly fixedly connected to a shell 1, a push rod 3 is arranged on the left side of the shell 1, a suction fan 7 and a filter box 8 are arranged on the right side of the shell 1, the suction fan 7 is located below the filter box 8, a test fixture 20 is arranged in the shell 1, a retractable mechanism is arranged in the shell 1, the retractable mechanism is used to retract the test fixture 20, a cleaning mechanism is arranged in the shell 1, and the cleaning mechanism and the retractable mechanism cooperate with each other.

[0047] One end surface of the first base plate 20 is fixedly connected to the telescopic end of the electric telescopic rod 6. The test fixture 20 can be adjusted by multiple electric telescopic rods 6. The test fixture 20 can be easily retracted and released by the motor 14. When testing, the test fixture is pushed out of the shell 1. When testing is not needed, the test fixture is retracted into the shell 1 as a whole, which can not only play a protective role, but also prevent dust from affecting the test effects of each test module.

[0048] In this embodiment, the retracting mechanism includes a retracting chamber 2 arranged in a shell 1, and a rotating shaft 12 is rotatably connected between the front and rear inner walls of the retracting chamber 2. The rotating shaft 12 passes through the left side of the test fixture 20 and is fixedly connected to the test fixture 20. A mounting plate 11 is installed on the rear side of the retracting chamber 2, and a motor 14 is installed on the mounting plate 11. The end of the output shaft of the motor 14 is fixedly connected to a first gear 15. The rear side of the rotating shaft 12 extends to the outside and is fixedly connected to a second gear 13 meshing with the first gear 15. The number of teeth of the second gear 13 is twice the number of teeth of the first gear 15.

[0049] In this embodiment, the cleaning mechanism includes a hollow plate 16 fixedly connected to the front side of the retractable chamber 2, a plurality of suction ports 17 are arranged in the hollow plate 16, a wiping sponge 18 is arranged on the rear side of the hollow plate 16, a plurality of fine holes 19 cooperating with the suction ports 17 are penetrated on the wiping sponge 18, the suction end of the suction fan 7 extends to the lower end of the filter box 8, a filter screen 9 is arranged in the filter box 8, and the left side of the filter box 8 is connected to the hollow plate 16 through the air pipe 10.

[0050] Working principle of the present invention: When in use, the device is pulled onto the test bench through the push rod 3 and the roller 4, and the multiple electric telescopic rods 6 are started to adjust the height of the shell 1. After adjusting to a suitable height, the motor 14 is started. The motor 14 will drive the second gear 13 to rotate through the first gear 15, and then the test fixture 20 will be unfolded.

[0051] When the display is not needed, the motor 14 can be started in reverse, and the suction fan 7 can be started to put the test fixture 20 back into the housing 1, so that the wiping sponge 18 wipes the front surface of the display test fixture 20 to achieve the effect of wiping and cleaning. In this process, a wind direction from the hollow plate 16 to the air duct 10 and then to the filter box 8 is generated, and the wiped dust is sucked into the filter box 8 through the pores 19 and the suction port 17, and filtered by the filter screen 9; The test fixture 20 can be retracted and pushed out by multiple electric telescopic rods 6, and the test fixture 20 can be easily retracted and released by the motor 14, which avoids the test fixture 20 being unused for a long time and being in an unprotected state, and the dust on its display will not fall. When moving, there is no need to worry about damaging the test fixture 20. Through the arrangement of the suction fan 7 and the filter box 8, during use, it is not necessary to manually clean the test fixture 20. Using machine cleaning saves time and effort. In addition, during use, the raised dust can be directly absorbed to avoid the possibility of secondary adhesion.

[0052] 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 thermal printer test fixture, characterized in that: include: First base plate; A testing mechanism, arranged on the first bottom plate and used for plugging and cooperating with the printer main board to implement functional testing, the testing mechanism being connected to the control system; A carrying mechanism, used for carrying the printer mainboard and slidably disposed on the first bottom plate and relatively close to or away from the testing mechanism; An adjusting mechanism, arranged on the carrying mechanism and used for adjusting the width to adapt to printer mainboards of different widths; The accommodating mechanism comprises an accommodating portion, wherein the test fixture can be entirely accommodated in the accommodating portion, and the accommodating mechanism further comprises a driving portion, wherein the driving portion is used to drive the test fixture to be retracted into the accommodating portion or pushed out of the accommodating portion.

2. A thermal printer test fixture according to claim 1, characterized in that: The bearing mechanism includes a guide rail, a slider and a carrier plate, the guide rail is fixed on the first bottom plate, the carrier plate slides on the guide rail through the slider, a limit plate is provided on the carrier plate, the printer mainboard is limited between the limit plates, the adjustment mechanism includes an adjustment rod, a slide groove is provided on the carrier plate, the bottom of the limit plate is slidably connected to the slide groove, the adjustment rod penetrates into the slide groove from the side of the carrier plate and is threadedly connected to the limit plate, and the spacing between the limit blocks is adjusted by rotating the adjustment rod.

3. A thermal printer test fixture according to claim 1, characterized in that: The testing mechanism includes a first network port test module, a second network port test module, a data test module, a serial port test module and a power plug test module, and the first network port test module, the second network port test module, the data test module, the serial port test module and the power plug test module are all fixed on the positioning plate.

4. A thermal printer test fixture according to claim 1, characterized in that: The accommodating mechanism includes a second bottom plate, a plurality of electric telescopic rods are installed on the upper end of the second bottom plate, the upper ends of the plurality of electric telescopic rods are commonly fixedly connected to a shell, a push rod is arranged on the left side of the shell, a suction fan and a filter box are arranged on the right side of the shell, the suction fan is located below the filter box, a retracting mechanism is arranged in the shell, the retracting mechanism is used to retract the test fixture, a cleaning mechanism is arranged in the shell, and the cleaning mechanism cooperates with the retracting mechanism.

5. A thermal printer test fixture according to claim 4, characterized in that: The retractable mechanism comprises a retractable cavity arranged in the shell, a rotating shaft is rotatably connected between the front and rear inner walls of the retractable cavity, the rotating shaft passes through the left side of the test fixture and is fixedly connected to the test fixture.

6. A thermal printer test fixture according to claim 5, characterized in that: A mounting plate is installed on the rear side of the retractable cavity, a motor is installed on the mounting plate, a first gear is fixedly connected to the end of the output shaft of the motor, the rear side of the rotating shaft extends to the outside and is fixedly connected to a second gear meshing with the first gear.

7. A thermal printer test fixture according to claim 6, characterized in that: The number of teeth of the second gear is twice the number of teeth of the first gear.

8. The thermal printer test fixture according to claim 7, characterized in that: The cleaning mechanism comprises a hollow plate fixedly connected to the front side of the retractable cavity, and a plurality of air suction ports are arranged in the hollow plate.

9. A thermal printer test fixture according to claim 8, characterized in that: A wiping sponge is arranged on the rear side of the hollow plate, and a plurality of fine holes cooperating with the air suction port are penetrated on the wiping sponge. The air suction end of the suction fan extends to the lower end of the filter box. A filter screen is arranged in the filter box. The left side of the filter box is connected with the hollow plate through an air pipe.

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