A printing device and a dyeing machine

Abstract

The application provides a printing device and a push piece dyeing machine. The printing device comprises a printing mechanism, a carbon tape mechanism and an adsorption mechanism. The printing mechanism comprises a printing support and a printing head assembly. The printing head assembly is installed on the printing support. The carbon tape mechanism is used for loading a carbon tape. The adsorption mechanism is connected with one of the carbon tape mechanism and the printing support, and is used for adsorbing the other one of the carbon tape mechanism and the printing support. When the carbon tape needs to be replaced, only the adsorption force of the adsorption mechanism needs to be overcome, so that the carbon tape mechanism can be detached from the printing support, the replacement of the carbon tape is completed, and the structure is simple and the detachment is convenient.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, specifically to a printing device and a slide dyeing machine. Background Technology

[0002] In disease diagnosis and treatment, the results obtained by smearing samples onto a glass slide and then examining them under a microscope provide doctors with a reference for disease diagnosis. For example, microscopic examination of blood smears is a basic method of hematological testing, widely used, and particularly valuable in the diagnosis of various hematological diseases.

[0003] Before sample coating, the user's identification code information needs to be printed on the glass slide. The printing method is generally through carbon ribbon printing. The carbon ribbon is loaded on a carbon ribbon pulley, which is mounted on a carbon ribbon holder. When the carbon ribbon is used up, it needs to be replaced. In the existing technology, replacing the carbon ribbon requires disassembling the bolts connecting the carbon ribbon holder and the printing holder, which is inconvenient. Summary of the Invention

[0004] This application mainly provides a printing device and a ribbon dyeing machine, which aims to solve the problem of inconvenient ribbon replacement.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a printing device, the printing device comprising: a printing mechanism including a printing bracket and a print head assembly, the print head assembly being mounted on the printing bracket; a ribbon mechanism for loading ribbon; and an adsorption mechanism connected to one of the ribbon mechanism and the printing bracket to adsorb the other of the ribbon mechanism and the printing bracket.

[0006] Another technical solution adopted in this application is: to provide a slide dyeing machine, which includes a slide pushing device, a dyeing device and the above-mentioned printing device.

[0007] The beneficial effects of this application are as follows: Unlike the prior art, the printing device provided by this application includes: a printing mechanism, including a printing bracket and a printhead assembly, the printhead assembly being mounted on the printing bracket; a ribbon mechanism for loading ribbon; and an adsorption mechanism connected to one of the ribbon mechanism and the printing bracket to adsorb the other of the ribbon mechanism and the printing bracket. When the ribbon needs to be replaced, the ribbon mechanism can be detached from the printing bracket simply by overcoming the adsorption force of the adsorption mechanism, thus completing the ribbon replacement. The structure is simple and the disassembly is convenient. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0009] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the printing device provided in this application;

[0010] Figure 2 yes Figure 1 3D exploded view of the printing device;

[0011] Figure 3 yes Figure 2 A three-dimensional structural diagram of the printhead assembly;

[0012] Figure 4 yes Figure 3 A cross-sectional schematic diagram of the printhead assembly;

[0013] Figure 5 yes Figure 2 A three-dimensional exploded view of the carbon fiber belt mechanism;

[0014] Figure 6 yes Figure 5 A three-dimensional structural diagram of the second elastic support member;

[0015] Figure 7 yes Figure 1 A cross-sectional schematic diagram of the printing device;

[0016] Figure 8 yes Figure 7 An enlarged schematic diagram of section M in the middle;

[0017] Figure 9 yes Figure 8 A three-dimensional structural diagram of the central adjustment unit;

[0018] Figure 10 yes Figure 9 A schematic diagram showing the unengaged state of the first and second adjustment parts;

[0019] Figure 11 yes Figure 9 A schematic diagram showing the engagement state of the first and second adjustment parts;

[0020] Figure 12 This is a three-dimensional structural schematic diagram of the implementation method of the slide dyeing machine provided in this application. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0022] The terms "print," "second," and "third" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "print," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. A process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0023] In this document, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation may be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a separate or alternative implementation mutually exclusive with other implementations. It will be explicitly and implicitly understood by those skilled in the art that the implementations described herein can be combined with other implementations.

[0024] Please see Figure 1 , Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the printing device 10 provided in this application. The printing device 10 in this embodiment includes a printing mechanism 20, a ribbon mechanism 30, and an adsorption mechanism 40.

[0025] Please refer to the following: Figure 2 , Figure 3 and Figure 4 , Figure 2 yes Figure 1 An exploded three-dimensional structural diagram of the printing device 10. Figure 3 yes Figure 2A three-dimensional structural diagram of the printhead assembly 22. Figure 4 yes Figure 3 A cross-sectional schematic diagram of the printhead assembly 22 is shown. The printing mechanism 20 includes a print holder 21 and a printhead assembly 22, with the printhead assembly 22 mounted on the print holder 21.

[0026] The printhead assembly 22 includes a connector 221 and a printhead 222. The connector 221 is connected to the print holder 21, and the printhead 222 is used to print the identification code information on the ribbon 110 onto the glass slide 120.

[0027] Furthermore, the print head 222 is rotatably connected to the connector 221 so that the angle of the print head 222 relative to the glass slide 120 can be adjusted according to the glass slide 120 during the printing process. In this embodiment, the print head 222 is rotatably connected to the connector 221 via a rotating shaft 222a.

[0028] Specifically, in practical applications, the bottom end P of the slide 120 and the print head 222 needs to be parallel. However, during actual installation, errors may occur, causing the bottom end P of the print head 222 to not be parallel to the slide 120, resulting in printing failure. In this embodiment, through the above-mentioned setting, during the printing process where the print head 222 presses the ribbon 110 onto the slide 120, the print head 222 can rotate relative to the connecting seat 221, thereby adjusting the angle of the print head 222 relative to the slide 120. This ensures that the bottom of the print head 222 is parallel to the slide 120, thereby guaranteeing successful printing. For example, the slide 120 is usually placed horizontally. If, during actual installation, the left side of the bottom P of the print head 222 is lower than the right side of the bottom P in the vertical direction Z, then, as mentioned above, the print head 222 rotates relative to the connecting seat 221, causing the left side of the bottom P to rotate in direction Z1 and the right side of the bottom P to rotate in direction Z2, thus ensuring that the bottom of the print head 222 is parallel to the slide 120.

[0029] Among them, an elastic adjustment member 223 is provided between the print head 222 and the connecting seat 221. The elastic adjustment member 223 abuts against the print head 222 and the connecting seat 221 respectively, thereby improving the stability of the print head 222 during the adjustment process.

[0030] Further reading Figure 3 The connecting seat 221 is slidably connected to the printing bracket 21. In this embodiment, the printing bracket 21 is provided with a guide rail 211, and the connecting seat 221 is disposed on the guide rail 211 so as to be slidably connected to the printing bracket 21 through the guide rail 211, thereby adjusting the position of the print head 222 according to the position of the glass slide 120. In this embodiment, that is, adjusting the height of the print head 222 in the vertical direction Z.

[0031] Furthermore, a first elastic holding member 212 is provided between the connecting seat 221 and the printing bracket 21. The first elastic holding member 212 abuts against the connecting seat 221 and the printing bracket 21 respectively, so that during the process of adjusting the position of the print head 222 according to the position of the glass slide 120, the first elastic holding member 212 provides elastic holding force to the print head 222, so that the print head 222 can press the carbon ribbon 110 onto the glass slide 120, thereby completing the printing.

[0032] Furthermore, the printhead assembly 22 also includes a detection element 223, which is used to detect the breakage of the ribbon 110. In this embodiment, the detection element 223 is mounted on the connector 221. In actual application, if the ribbon 110 breaks while the printing device 10 is still in the printing state, it will damage the printhead 222. Therefore, in this embodiment, the detection element 223 detects the breakage of the ribbon 110. When the ribbon 110 breaks, the detection element 223 generates a detection signal that the ribbon has broken. At this time, the printing device can stop working to avoid damage to the printhead 222.

[0033] See also Figure 2 , Figure 5 and Figure 6 , Figure 5 yes Figure 2 A three-dimensional exploded view of the carbon fiber belt mechanism 30. Figure 6 yes Figure 5 A three-dimensional structural diagram of the second elastic holding member 33 is shown. The carbon belt mechanism 30 is used to load the carbon belt 110. The carbon belt mechanism 30 includes a carbon belt support 31, a carbon belt pulley 32, and a second elastic holding member 33. The carbon belt pulley 32 is used to load the carbon belt 110 and is supported on the carbon belt support 31. The second elastic holding member 33 is connected to the carbon belt support 31 and elastically holds the carbon belt pulley 32. When it is necessary to replace the carbon belt 110, it is only necessary to overcome the elastic holding force of the second elastic holding member 33 to remove the carbon belt pulley 32 from the carbon belt support 31 and complete the replacement of the carbon belt 110.

[0034] Specifically, the carbon ribbon support 31 has an installation space 301 and a guide groove 302 communicating with the installation space 301. The carbon ribbon pulley 32 is provided with a guide protrusion 3211, so that the guide protrusion 3211 extends along the extension direction of the guide groove 302, that is, in direction A as shown in the figure, so that the carbon ribbon pulley 32 is installed into the installation space 301. The second elastic holding member 33 mentioned above elastically holds the guide protrusion 3211, thereby pressing the carbon ribbon pulley 32 into the installation space 301.

[0035] The carbon ribbon support 31 includes a first sub-support 31a, a second sub-support 31b, and a connector 31c. The first sub-support 31a and the second sub-support 31b are arranged opposite to each other to form the aforementioned installation space 301. The connector 31c connects the first sub-support 31a and the second sub-support 31b respectively.

[0036] The ribbon pulley 32 includes a feed pulley 321 and a take-up pulley 322. The ribbon 110 is wound around the feed pulley 321, and the lead-out end of the ribbon 110 is connected to the take-up pulley 322. In actual use, the lead-out end of the ribbon 110 can be connected to the take-up pulley 322 by adhesive bonding. During the printing process, the take-up pulley 322 rotates relative to the ribbon support 31, thereby gradually transferring the ribbon 110 on the feed pulley 321 to the take-up pulley 322.

[0037] In this embodiment, each of the feed roller 321 and take-up roller 322 has a guide protrusion 3211 on both opposite sides, and correspondingly, there are four guide grooves 302. The first sub-support 31a and the second sub-support 31b are each provided with two guide grooves 302.

[0038] Optionally, the extension direction A of the guide groove 302 is inclined relative to the horizontal direction X. On the one hand, the guide groove 302 can guide the carbon belt pulley 32 into the installation space 301. On the other hand, the carbon belt bracket 31 can support the guide protrusion 3211 through the guide groove 302, and thus support the carbon belt pulley 32.

[0039] Furthermore, the second elastic holding member 33 includes a connecting part 331 and an elastic holding part 332. The connecting part 331 is connected to the carbon ribbon support 31, and the elastic holding part 332 is connected to the connecting part 331 and elastically holds the guide protrusion 3211. When it is necessary to remove the carbon ribbon pulley 32 from the carbon ribbon support 31 to replace the carbon ribbon, it is only necessary to use external force to pry the elastic holding part 332 so that the guide protrusion 3211 is released from the holding state, and the carbon ribbon pulley 32 can be taken out from the installation space 301.

[0040] In this embodiment, the connecting part 331 is connected to the first sub-support 31a, and there are two elastic pressing parts 332. The two elastic pressing parts 332 are connected to the connecting part 331 at opposite ends of the connecting part 331, and the two elastic pressing parts 332 are respectively used to elastically press the guide protrusion 3211 of the feed roller 321 and the guide protrusion 3211 of the take-up roller 322.

[0041] Furthermore, the second elastic holding member 33 is provided with a first positioning part 33a, and the carbon belt pulley 32 is provided with a second positioning part 32a. The first positioning part 33a and the second positioning part 32a are configured to cooperate to position the installation position of the carbon belt pulley 32 on the carbon belt bracket 31. In this embodiment, there are two first positioning parts 33a and two second positioning parts 32a. The two first positioning parts 33a are respectively disposed on the two elastic holding parts 332, and the two second positioning parts 32a are respectively disposed on the feed pulley 321 and the take-up pulley 322.

[0042] Optionally, the first positioning part 33a is a positioning protrusion and the second positioning part 32a is a positioning groove. It is understood that in other embodiments, the first positioning part 33a may also be a positioning groove and the second positioning part 32a may be a positioning protrusion.

[0043] Further reading Figure 2 The adsorption mechanism 40 is connected to one of the print holder 21 and the ribbon mechanism 30 to adsorb the other of the print holder 21 and the ribbon mechanism 30. When the ribbon 110 needs to be replaced, the ribbon mechanism 30 can be removed from the print holder 21 by overcoming the adsorption force of the adsorption mechanism 40, thus completing the replacement of the ribbon 110.

[0044] Understandably, in this embodiment, when it is necessary to replace the carbon ribbon 110, the adsorption force of the adsorption mechanism 40 is first overcome, and the carbon ribbon mechanism 30 is removed from the printer holder 21. Then, as described above, the elastic holding force of the second elastic holding member 33 is overcome, and the carbon ribbon pulley 32 is removed from the carbon ribbon holder 31. Finally, the replacement of the carbon ribbon 110 is completed.

[0045] Optionally, the adsorption mechanism 40 is a magnetic adsorption mechanism, such as a magnet. In this embodiment, the magnet is mounted on the printing holder 21 to magnetically adsorb the ribbon holder 31 of the ribbon mechanism 30.

[0046] Optionally, the adsorption mechanism 40 can be one or more.

[0047] Furthermore, the printer holder 21 is provided with a first guide portion 21a, and the ribbon mechanism 30 is provided with a second guide portion 30a. The first guide portion 21a and the second guide portion 30a are interlocked. For example, the first guide portion 21a is a guide post, and the second guide portion 30a is a guide hole. During the process of installing the ribbon mechanism 30 onto the printer holder 21, the ribbon mechanism 30 approaches the printer holder 21 along the extension direction of the guide post, so that the guide post is inserted into the guide hole. Then, the ribbon mechanism 30 is adsorbed by the adsorption mechanism 40, thus completing the installation of the ribbon mechanism 30. When it is necessary to disassemble the ribbon mechanism 30, the adsorption force of the adsorption mechanism 40 is overcome, and the ribbon mechanism 30 is pulled out from the guide post.

[0048] By inserting the first guide part 21a and the second guide part 30a together, the carbon ribbon mechanism 30 is provided with guidance for installation and disassembly, and can also support the carbon ribbon mechanism 30 in the direction of gravity.

[0049] Optionally, the number of the first guide portion 21a and the number of the second guide portion 30a are both multiple.

[0050] In this embodiment, the guide hole is formed by a guide tube 30b mounted on the printing bracket 31.

[0051] Furthermore, the print holder 31 is also provided with a handle 34, which is used to accept external force to install or remove the ribbon holder 31 from the print holder 21.

[0052] like Figure 1 As shown, when the ribbon mechanism 30 is installed on the print holder 21 as described above, the print head 222 extends into the installation space 301 of the ribbon holder 31, so that during the printing process, the print head 222 can press the ribbon 110 onto the glass slide 120.

[0053] Furthermore, a detector 21b is provided on the print holder 21 or the ribbon mechanism 30. The detector 21b is used to detect the insertion position of the second guide part 30a relative to the first guide part 21a, thereby determining whether the ribbon mechanism 30 is inserted in place. On the one hand, this avoids the situation where the print head 222 does not penetrate into the preset position in the installation space 301 and thus cannot complete the printing when the ribbon mechanism 30 is not inserted in place. On the other hand, it avoids the situation where the adsorption force of the adsorption mechanism 40 cannot adsorb the ribbon mechanism 30 onto the print holder 21.

[0054] For example, in this embodiment, the detector 21b is an optocoupler, which is mounted on the printer holder 21. The ribbon mechanism 30 is provided with a sensing baffle 30c. During the insertion process of the second guide part 30a and the first guide part 21a, the sensing baffle 30c gradually approaches the optocoupler. If the sensing baffle 30c is inserted between the transmitting end and the receiving end of the optocoupler, it means that it is inserted in place; otherwise, it means that it is not inserted in place.

[0055] Please refer to the following: Figure 7 and Figure 8 , Figure 7 yes Figure 1 A cross-sectional schematic diagram of the printing device 10. Figure 8 yes Figure 7 The enlarged schematic diagram of part M shows that the printing device 10 in this embodiment also includes a drive mechanism 50, which is used to drive the carbon belt pulley 32 to rotate relative to the carbon belt support 31.

[0056] Specifically, the carbon belt pulley 32 is provided with a first adjustment part 3212, and the drive mechanism 50 includes a drive unit 51 and an adjustment unit 52. The drive unit 51 is connected to the adjustment unit 52 to drive the adjustment unit 52 to rotate. The adjustment unit 52 is provided with a second adjustment part 52a. The first adjustment part 3212 and the second adjustment part 52a are used to cooperate with each other so that the carbon belt pulley 32 and / or the adjustment unit 52 rotate to the point where the first adjustment part 3212 and the second adjustment part 52a are engaged. This ensures that when the drive unit 51 drives the adjustment unit 52 to rotate, it drives the carbon belt pulley 32 to rotate, thus avoiding the situation where the first adjustment part 3212 and the second adjustment part 52a cannot engage during the installation process, causing the carbon belt pulley 32 to be unable to rotate.

[0057] In this embodiment, the first adjustment unit 3212 is disposed on the take-up pulley 322. That is, in this embodiment, the drive unit 51 only needs to drive the take-up pulley 322 to rotate through the adjustment unit 52, and transmit the rotation to the feed pulley 321 to drive the feed pulley 321 to rotate, thereby transferring the carbon belt 110 on the feed pulley 321 to the take-up pulley 322. The drive unit 51 does not need to directly drive the feed pulley 321 to rotate. Correspondingly, the feed pulley 321 does not need to undergo the adjustment process of the first adjustment unit 3212 and the second adjustment unit 52a cooperating with each other as described above, which simplifies the structure of the entire device. Of course, in other embodiments, the feed pulley 321 can also undergo the adjustment process of the first adjustment unit 3212 and the second adjustment unit 52a cooperating with each other as described above, which is not limited.

[0058] The drive unit 51 includes a motor 511, a drive wheel 512, a driven wheel 513, and a conveyor belt 514. The drive wheel 512 is connected to the output shaft of the motor 511. The conveyor belt 514 is wound around the drive wheel 512 and the driven wheel 513. The adjustment unit 52 is connected to the driven wheel 513, so that the motor 511 drives the adjustment unit 52 to rotate through the drive wheel 512, the conveyor belt 514, and the driven wheel 513, thereby driving the take-up pulley 322 to rotate.

[0059] Furthermore, as described above, the detection element 223 is used to detect the breakage of the ribbon 110. In this embodiment, the lead-out end of the ribbon 110 is led out from the feed roller 321 and wound around the ribbon support 31, and then connected to the take-up roller 322. Since the printhead assembly 22 is inserted into the installation space 301 after the ribbon support 31 is installed, the detection element 223 is disposed on the connector 221 located in the installation space 301, and detects whether the ribbon 110 located between the feed roller 321 and the take-up roller 322 is broken. The specific detection method can be optical coupler detection. The receiving end and the transmitting end of the optical coupler are located on both sides of the ribbon. If the ribbon is broken, the receiving end of the optical coupler can receive the optical coupler signal emitted by the transmitting end; otherwise, it cannot be received. Of course, in other embodiments, detection can also be performed by detection methods, and this is not limited.

[0060] See also Figure 9 , Figure 10 and Figure 11 , Figure 9 yes Figure 8 A three-dimensional structural diagram of the adjustment unit 52. Figure 10 yes Figure 9 A schematic diagram showing the unengaged state of the first adjusting part 3212 and the second adjusting part 52a. Figure 11 yes Figure 9 A schematic diagram of the engagement state of the first adjustment part 3212 and the second adjustment part 52a is shown. The first adjustment part 3212 is provided with a first inclined guide surface 321a, and the second adjustment part 52a is provided with a second inclined guide surface 52b. Under the guidance of the first inclined guide surface 321a and the second inclined guide surface 52b, the carbon belt pulley 32 and / or the adjustment unit 52 rotate until the first adjustment part 321a and the second adjustment part 52a are engaged.

[0061] For ease of explanation, in this embodiment, the first adjusting part 3212 is taken as an adjusting protrusion and the second adjusting part 52a as an adjusting groove, and the related descriptions below will also use this example. During installation, if... Figure 10 As shown, the adjusting protrusion 3212 and the adjusting groove 52a are misaligned and misaligned, that is, the center line T1 of the adjusting protrusion 3212 and the center line T2 of the adjusting groove 52a do not coincide. In this case, the adjusting protrusion 3212 cannot be inserted into the adjusting groove 52a upward in direction B1, or the adjusting groove 52a cannot be inserted into the adjusting protrusion 3212 in direction B2, which makes it impossible for the two to engage. However, in this embodiment, by setting the first inclined guide surface 321a and the second inclined guide surface 52b, the carbon belt pulley 32 and / or the adjusting unit 52 rotate, thereby aligning the adjusting protrusion 3212 and the adjusting groove 52a, that is, the center line T1 and the center line T2 coincide. At this time, the adjusting protrusion 3212 can be inserted into the adjusting groove 52a, so that the two can engage.

[0062] Optionally, there are two first inclined guide surfaces 321a and two second inclined guide surfaces 52b. The two first inclined guide surfaces 321a are arranged in a cross direction and along the rotation direction of the carbon belt pulley 32. The two second inclined guide surfaces 52b are arranged in a cross direction and along the rotation direction of the adjustment unit 52. This arrangement allows the adjustment process to be achieved by the cooperation of the corresponding first inclined guide surfaces 321a and second inclined guide surfaces 52b when the first adjustment part 3212 and the second adjustment part 52b are misaligned at different positions.

[0063] Optionally, there may be multiple first adjustment parts 3212 and multiple second adjustment parts 52a. The multiple first adjustment parts 3212 are arranged in an array along the rotation direction of the carbon belt pulley 32, and the multiple second adjustment parts 52a are arranged in an array along the rotation direction of the adjustment unit 52. For example, in this embodiment, there are four first adjustment parts 3212 and four second adjustment parts 52a.

[0064] Furthermore, the adjustment unit 52 includes a first connecting member 521 and an adjusting member 522. The first connecting member 521 is connected to the drive unit 51. In this embodiment, the first connecting member 521 is connected to the driven wheel 513. The second adjusting part 52a is provided on the adjusting member 522. The adjusting member 522 is slidably connected to the first connecting member 521. An elastic member 523 is provided between the first connecting member 521 and the adjusting member 522. The elastic member 523 abuts against the first connecting member 521 and the adjusting member 522 respectively, so that when the carbon belt pulley 32 and / or the adjusting member 522 rotates under the guidance of the first inclined guide surface 321a and the second inclined guide surface 52b, the adjusting member 522 moves toward the carbon belt pulley 32 under the elastic force of the elastic member 523, thereby making the first adjusting part 3212 and the second adjusting part 52a in a locked state.

[0065] Specifically, when the adjustment protrusion of the first adjustment part 3212 and the adjustment groove of the second adjustment part 52a are aligned as follows: Figure 10 In the misaligned state shown, the two are still a distance H apart in the direction of B. Therefore, in order to achieve the first adjustment unit 3212 and the second adjustment unit 52a being in the same position as shown... Figure 11 In the engaged state shown, the carbon belt pulley 32 and / or the adjusting member 522 rotate under the guidance of the first inclined guide surface 321a and the second inclined guide surface 52b. At the same time, the adjusting member 522 needs to move upward toward the carbon belt pulley 32 at B2, so that the adjusting protrusion is inserted into the adjusting groove. The elastic member 523 causes the first connecting member 521 to abut against the adjusting member 522 to generate elastic force, and the adjusting member 522 can move toward the carbon belt pulley 32 under the action of elastic force.

[0066] The first connecting member 521 is provided with a guide groove 5211. The adjusting unit 52 also includes a second connecting member 524, which is connected to the adjusting member 522 and passes through the guide groove 5211. This allows the adjusting member 522 to slide along the extension direction of the guide groove 5211 under the elastic force of the elastic member 523. The guide groove 5211 is configured to provide guidance for the direction of the adjusting member 522. It can be understood that the extension direction of the guide groove 5211 is... Figure 9 The B direction in the figure is the axial direction of the rotation of the first connecting member 521.

[0067] Furthermore, the second connector 524 is configured to cooperate with the guide groove 5211 in a direction perpendicular to the extension direction B, so that the adjusting member 522 is relatively fixed to the first connector 521 in a direction perpendicular to the extension direction B. That is, the adjusting member 522 is relatively fixed to the first connector 521 in the circumferential direction of the first connector 521's rotation, so that when the drive unit 51 drives the first connector 521 to rotate, the adjusting member 522 rotates synchronously, thereby driving the carbon belt pulley 32 to rotate.

[0068] Furthermore, the drive mechanism 50 also includes a detection unit 53, which is installed on at least one of the motor 511, the drive wheel 512, and the driven wheel 513 to detect the rotational displacement of the motor 511.

[0069] In a specific application scenario, the slide 120 generally includes a printing area and a coating area. The coating area is used to coat the sample. The aforementioned print head prints the identification code information on the printing area. Therefore, the placement position of the slide 120 needs to match the movement direction of the ribbon 110. Thus, the detection unit 53 is used to detect the rotation direction of at least one of the motor 511, the take-up roller 322, and the feed roller 321, thereby detecting the direction of the ribbon 110 and avoiding the problem of printing failure caused by the mismatch between the direction of the ribbon 110 and the placement position of the slide 120.

[0070] In another specific application scenario, as the carbon belt 110 on the feed pulley 321 gradually transfers to the take-up pulley 322, the diameter of the carbon belt 110 wound on the take-up pulley 322 gradually increases. However, to ensure the smooth operation of the carbon belt 110, it is necessary to ensure that the tangential velocity V1 of the carbon belt 110 wound on the feed pulley 321 is the same as the tangential velocity V2 of the carbon belt 110 wound on the take-up pulley 322, where V1 = W1 × R1, V2 = W2 × R2, and W1 is the angular velocity of the feed pulley 321. R1 is the common radius of the feed pulley 321 and the carbon belt 110 wound on the carbon belt pulley 321, W2 is the angular velocity of the take-up pulley 322, and R2 is the common radius of the take-up pulley 322 and the carbon belt 110 wound on the carbon belt pulley 322. Therefore, the detection unit 53 is also used to detect the motion trajectory of the feed pulley 321 and the take-up pulley 322, and to determine whether the motion trajectory of the feed pulley 321 and the take-up pulley 322 matches the motion trajectory of the detection unit 53, so as to avoid the motor jamming when there is a mismatch.

[0071] Optionally, the detection unit 53 is a code disk, and there are three code disks, which are respectively installed on the motor 511, the take-up pulley 322 and the feed pulley 321.

[0072] Please see Figure 12 , Figure 12This is a three-dimensional structural schematic diagram of an embodiment of the slide dyeing machine 60 provided in this application. The slide dyeing machine 60 in this embodiment includes a slide pushing device 61, a dyeing device 62, and a printing device 10 as described in the above embodiment.

[0073] In this process, after the printing device 10 prints the identification code information on the glass slide, the slide pushing device 61 applies the sample to the glass slide, and the staining device 62 stains the sample on the glass slide.

[0074] Unlike existing technologies, the printing device provided in this application includes: a printing mechanism, comprising a printing bracket and a printhead assembly, the printhead assembly being mounted on the printing bracket; a ribbon mechanism for loading ribbons; and an adsorption mechanism connected to one of the ribbon mechanism and the printing bracket to adsorb the other of the ribbon mechanism and the printing bracket. When the ribbon needs to be replaced, the ribbon mechanism can be detached from the printing bracket simply by overcoming the adsorption force of the adsorption mechanism, thus completing the ribbon replacement. The structure is simple and disassembly is convenient.

[0075] The above description is only a partial embodiment of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A printing device, characterized in that, The printing device includes: A printing mechanism, including a print stand and a print head assembly, wherein the print head assembly is mounted on the print stand; The ribbon mechanism is used to load the ribbon. An adsorption mechanism is connected to one of the ribbon mechanism and the printing holder to adsorb the other of the ribbon mechanism and the printing holder; The printing holder is provided with a first guide portion, and the ribbon mechanism is provided with a second guide portion, with the first guide portion and the second guide portion being inserted into each other. The printing bracket or the ribbon mechanism is equipped with a detector, which is used to detect the insertion position of the second guide relative to the first guide; The ribbon mechanism includes a ribbon support, a ribbon pulley, and a second elastic holding member. The ribbon pulley is used to load the ribbon and is supported on the ribbon support. The second elastic holding member is connected to the ribbon support and elastically holds the ribbon pulley. The carbon ribbon support has an installation space and a guide groove communicating with the installation space. The carbon ribbon pulley is provided with a guide protrusion so that the guide protrusion inserts the carbon ribbon pulley into the installation space along the extension direction of the guide groove. The second elastic holding member elastically holds the guide protrusion. The ribbon pulley includes a feed pulley and a take-up pulley. The ribbon is wound around the feed pulley and the lead-out end of the ribbon is connected to the take-up pulley. The printing device also includes a drive mechanism, which is used to drive the take-up pulley to rotate and drive the feed pulley to rotate through the ribbon. The drive mechanism includes a motor and a detection unit. The output shaft of the motor is connected to the take-up pulley, and the detection unit is used to detect the rotational displacement of the motor.

2. The printing apparatus according to claim 1, characterized in that, The adsorption mechanism is a magnetic adsorption mechanism.

3. The printing apparatus according to claim 1, characterized in that, The printhead assembly includes a connector and a printhead, the printhead being rotatably connected to the connector.

4. The printing apparatus according to claim 3, characterized in that, An elastic adjustment member is provided between the print head and the connector, and the elastic adjustment member abuts against the print head and the connector respectively.

5. The printing apparatus according to claim 3, characterized in that, The connecting seat is slidably connected to the printing bracket, and a first elastic pressing member is provided between the connecting seat and the printing bracket. The first elastic pressing member abuts against the printing bracket and the connecting seat respectively.

6. The printing apparatus according to claim 1, characterized in that, The second elastic holding member is provided with a first positioning part, and the carbon belt pulley is provided with a second positioning part. The first positioning part and the second positioning part are configured to cooperate with each other.

7. The printing apparatus according to claim 1, characterized in that, The take-up pulley is provided with a first adjustment part, and the drive mechanism includes a drive unit and an adjustment unit. The drive unit is connected to the adjustment unit to drive the adjustment unit to rotate. The adjustment unit is provided with a second adjustment part. The first adjustment part and the second adjustment part are used to cooperate with each other so that the take-up pulley and / or the adjustment unit rotates to a state where the first adjustment part and the second adjustment part are engaged.

8. A slide-staining machine, characterized in that, The sheet-pushing and dyeing machine includes a sheet-pushing device, a dyeing device, and a printing device according to any one of claims 1 to 7.

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