Glass slide printing device

Abstract

The utility model belongs to the technical field of printing equipment, and discloses a glass slide printing device. The glass slide printing device comprises a thermal transfer ribbon frame and a printing mechanism, the thermal transfer ribbon frame comprises two vertical plates which are parallel to each other, an unwinding sleeve and a winding sleeve which are arranged on the two vertical plates respectively, a rotary guide piece which is rotationally arranged between the two vertical plates, and a plurality of guide rods which are arranged between the two vertical plates and surround the peripheral sides of the unwinding sleeve and the winding sleeve; the guide rod is used for guiding a thermal transfer ribbon, and one of the vertical plates is provided with a guide mounting hole; the printing mechanism comprises a shell, an unwinding assembly, a winding assembly, a rotary guide assembly and a mounting rod, the unwinding assembly, the winding assembly, the rotary guide assembly and the mounting rod are arranged on the shell, the two vertical plates are hung on the shell, an unwinding shaft of the unwinding assembly can be inserted into an unwinding sleeve and clamped with the unwinding sleeve, and a winding shaft of the winding assembly can be inserted into a winding sleeve and clamped with the winding sleeve. And one end of the rotary guide piece is clamped at the clamping position of the rotary guide assembly. According to the glass slide printing device provided by the utility model, the disassembly and assembly convenience of the thermal transfer ribbon is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a slide printing device. Background Art

[0002] At present, the main process of preparing conventional blood smears on the market is roughly as follows: slide loading, slide printing information code, blood sampling system sampling blood, drop system dropping blood onto the printed slide, slide blood smear (the purpose is to push the drop-shaped blood into a blood film form through a blood pusher for subsequent staining observation), slide drying, slide blood staining and staining drying, etc. Among them, the personnel information corresponding to the blood of the sample to be tested and the information of the final blood test result need to correspond one to one, which requires the slide printing device to scan the information code of the sample tube (usually the sample tube is attached with a two-dimensional code or a one-dimensional code, and the two-dimensional code or one-dimensional code records the personnel-related information of the sample to be tested), and the scanned relevant data is converted by the slide printing device, converted into the form of a two-dimensional code or a one-dimensional code and then printed on the slide, and the subsequent sample test information on the slide is recorded and transmitted through the two-dimensional code or one-dimensional code. The printing of the two-dimensional code or one-dimensional code on the slide needs to be performed with the help of a corresponding special printing device.

[0003] In the related technology, thermal printing paper is usually used in conjunction with a thermal printing head for printing. Conventional slides have a printing area (such as Figure 1 As shown in the figure, the printing device is provided with thermal printing paper (also called carbon ribbon, with different models according to different sizes and substrates). The thermal peeling layer on the carbon ribbon can be printed on the printing area 310 on the glass slide 300 by heating the heating points of the thermal print head. The thermal print head usually has a row of heating points. By independently controlling the heating points, different contents of each row can be printed. The final thermally printed content consists of rows of dot matrix. After thermal printing, the thermal printing paper cannot be reused. After printing a row, the thermal print head and the carbon ribbon need to complete relative movement (at the same time, the glass slide 300 and the thermal print head also need to complete relative movement). Therefore, the carbon ribbon usually has a winding side and an unwinding side. The movement of the carbon ribbon is achieved by winding the used carbon ribbon on the winding side and unwinding the new carbon ribbon on the unwinding side. The conventional carbon ribbon of the existing structure needs to be disassembled and assembled inside the glass slide printing device. However, the internal space of the glass slide printing device is limited, and disassembly and assembly are inconvenient, resulting in a poor user experience.

[0004] Therefore, there is an urgent need for a slide printing device to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a glass slide printing device, aiming to solve the problem in the prior art that the carbon ribbon needs to be disassembled and assembled inside the glass slide printing device, and the internal space of the glass slide printing device is limited, which makes it inconvenient to disassemble and assemble the carbon ribbon, resulting in a poor user experience. When the carbon ribbon is replaced, the glass slide printing device does not need to operate inside the glass slide printing device, thereby improving the convenience of disassembling and assembling the carbon ribbon, and further improving the efficiency of replacing the carbon ribbon.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A slide printing device, comprising:

[0008] The carbon ribbon rack comprises two vertical plates parallel to each other, an unwinding sleeve and a winding sleeve respectively placed on the two vertical plates, a rotating guide rotatably arranged between the two vertical plates, and a plurality of guide rods arranged between the two vertical plates and surrounding the unwinding sleeve and the winding sleeve, wherein the guide rods are used to guide the carbon ribbon, and a guide mounting hole is provided on one of the vertical plates;

[0009] The printing mechanism includes a shell and an unwinding assembly, a winding assembly, a rotating guide assembly and a mounting rod arranged on the shell. The two vertical plates are hung on the shell. The unwinding shaft of the unwinding assembly can be inserted into the unwinding sleeve and engage with the unwinding sleeve. The winding shaft of the winding assembly can be inserted into the winding sleeve and engage with the winding sleeve. The mounting rod is inserted into the guide mounting hole, and one end of the rotating guide is engaged with the engaging position of the rotating guide assembly.

[0010] Optionally, the printing mechanism includes a common shaft and a driving motor, the output shaft of the driving motor is connected to the common shaft via a first synchronous belt, the unwinding shaft is connected to the common shaft via a second synchronous belt, and the rotating guide shaft of the rotating guide assembly is connected to the common shaft via a gear assembly.

[0011] Optionally, a hanging rack is slidably provided on the top surface of the shell, and the two vertical plates are hung on the hanging rack through a connecting assembly, and the unwinding assembly, the winding assembly and the rotating guide assembly are all accommodated in the shell.

[0012] Optionally, a first in-place detection optical coupler and a second in-place detection optical coupler are provided outside the shell, and one of the vertical plates is provided with a carbon ribbon rack detected protrusion, and when the carbon ribbon rack detected protrusion is opposite to the signal receiving groove of the first in-place detection optical coupler, the first in-place detection optical coupler sends out an in-place signal; when the carbon ribbon is opposite to the signal receiving groove of the second in-place detection optical coupler, the second in-place detection optical coupler sends out an in-place signal.

[0013] Optionally, a magnetic block is provided on the carbon ribbon rack, and a magnet magnetically connected to the magnetic block is provided outside the shell to ensure a stable connection between the carbon ribbon rack and the shell.

[0014] Optionally, a first ring sleeve is sleeved on the unwinding shaft, a first convex point is provided on the first ring sleeve, and the first ring sleeve abuts against the outer side of the shell, and a first clamping groove is provided at the end of the unwinding sleeve to cooperate with the first convex point;

[0015] The winding shaft is sleeved with a second ring sleeve, the second ring sleeve is provided with a second convex point position, and the second ring sleeve is abutted against the outer side of the shell, and the end of the winding sleeve is provided with a second clamping groove matched with the second convex point position;

[0016] A third convex point latching position is provided at the end of the rotation guide, and the latching position is configured as a third latching groove matched with the third convex point latching position.

[0017] Optionally, the unwinding assembly further comprises a first torque limiter, which is arranged on the unwinding shaft and located in the housing;

[0018] The winding assembly further includes a second torque limiter, which is disposed on the winding shaft and located inside the housing.

[0019] Optionally, the unwinding assembly further comprises a first code disc, the first code disc being arranged on the unwinding shaft and located in the housing, the first code disc being used to detect the number of rotations of the unwinding shaft;

[0020] The winding assembly also includes a second code disc, which is arranged on the winding shaft and located in the shell, and the second code disc is used to detect the number of rotations of the winding shaft.

[0021] Optionally, the printing mechanism further includes a print head assembly, which is disposed outside the shell, and the print head assembly includes a thermal print head, a rotating part and a driving component, the thermal print head is disposed on the rotating part, and the driving component is used to drive the rotating part to rotate.

[0022] Optionally, the printing mechanism further includes a flattening and pressing assembly, which includes a flattening shaft and a flattening roller sleeved on the flattening shaft, and the flattening shaft is arranged on the housing and is spaced above the rotating guide.

[0023] Beneficial effects of the utility model:

[0024] The slide printing device provided by the utility model, when assembled, firstly, the carbon ribbon is sleeved on the unwinding sleeve, the carbon ribbon can rotate with the unwinding sleeve, then the unwinding sleeve is placed on the carbon ribbon rack, the head of the carbon ribbon is manually pulled to make it wrap around the outer side of multiple guide rods, then the head of the carbon ribbon is pasted or clamped on the rewinding sleeve, then the rewinding sleeve is placed on the carbon ribbon rack, then the two vertical plates are hung on the shell of the printing mechanism, the unwinding shaft of the unwinding assembly is inserted into the unwinding sleeve and mutually engaged with the unwinding sleeve, the rewinding shaft of the rewinding assembly is inserted into the rewinding sleeve and mutually engaged with the rewinding sleeve, the mounting rod is inserted into the guide mounting hole, one end of the rotating guide member is clamped in the clamping position of the rotating guide assembly, and the operation is convenient. When the carbon ribbon needs to be replaced, because the carbon ribbon rack and the printing mechanism are hung, the carbon ribbon rack can be directly removed from the shell of the printing mechanism, and then the carbon ribbon installed on the carbon ribbon rack is replaced, without the need to operate inside the slide printing device, thereby improving the convenience of disassembly and assembly of the carbon ribbon, and thus improving the efficiency of replacing the carbon ribbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a glass slide provided by the background technology;

[0026] Figure 2 The structure of the slide printing device provided by the embodiment of the utility model is schematically shown in FIG. Figure 1 ;

[0027] Figure 3 It is a three-dimensional view of the carbon ribbon rack provided by the embodiment of the utility model;

[0028] Figure 4 It is a three-dimensional view of the printing mechanism under a viewing angle provided by an embodiment of the utility model;

[0029] Figure 5 It is a three-dimensional view of the printing mechanism from another perspective provided by an embodiment of the utility model;

[0030] Figure 6 It is a three-dimensional view of the printing mechanism from another perspective provided by an embodiment of the utility model;

[0031] Figure 7 The structure of the slide printing device provided by the embodiment of the utility model is schematically shown in FIG. Figure 2 ;

[0032] Figure 8 It is a rear view of the printing mechanism (housing not shown) provided in the embodiment of the utility model.

[0033] In the figure:

[0034] 100, ribbon rack; 110, vertical plate; 111, guide mounting hole; 112, support column; 120, unwinding sleeve; 121, first clamping groove; 130, winding sleeve; 131, second clamping groove; 140, rotating guide; 141, third convex point clamping position; 150, guide rod; 160, ribbon rack detection protrusion; 170, magnetic suction block; 180, connecting rod;

[0035] 200, printing mechanism; 201, housing; 2021, unwinding shaft; 20211, first convex point clamping position; 2022, first torque limiter; 2023, first code disk; 2024, first code disk optical coupler; 2031, rewinding shaft; 20311, second convex point clamping position; 2032, second torque limiter; 2033, second code disk; 2034, second code disk optical coupler; 2041, rotating guide shaft; 20411, third clamping groove; 2042, telescopic spring; 205, mounting rod; 206, common shaft; 207, driving motor; 20 8. First synchronous belt; 209. Second synchronous belt; 210. Gear assembly; 211. Hanging bracket; 2111. Horizontal push plate; 2112. Hanging block; 21121. Limiting groove; 2113. Slide plate; 212. First in-position detection optical coupler; 213. Second in-position detection optical coupler; 214. Magnet; 215. Print head assembly; 2151. Thermal print head; 2152. Rotating part; 2153. Driving part; 21531. Print head motor; 217. Reset spring; 218. Flattening roller; 219. Link flattening member; 220. Slide rail;

[0036] 300, slide; 310, printing area;

[0037] 400, Carbon ribbon. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0039] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0042] The present embodiment provides a slide printing device, which aims to solve the problem in the prior art that the carbon ribbon needs to be disassembled and assembled inside the slide printing device, and the internal space of the slide printing device is limited, which makes it inconvenient to disassemble and assemble the carbon ribbon, resulting in a poor user experience. In the slide printing device, when the carbon ribbon needs to be replaced, because the carbon ribbon holder and the printing mechanism are independently arranged, the carbon ribbon holder can be removed from the printing mechanism, and then the carbon ribbon can be replaced, without the need to operate inside the slide printing device, thereby improving the convenience of disassembling and assembling the carbon ribbon, and further improving the efficiency of replacing the carbon ribbon.

[0043] like Figure 2-Figure 4 As shown, the slide printing device includes a carbon ribbon rack 100 and a printing mechanism 200. The carbon ribbon rack 100 includes two mutually parallel vertical plates 110, a reeling sleeve 120 and a reeling sleeve 130 respectively placed on the two vertical plates 110, a rotating guide member 140 rotatably arranged between the two vertical plates 110, and a plurality of guide rods 150 arranged between the two vertical plates 110 and surrounding the reeling sleeve 120 and the reeling sleeve 130. The guide rods 150 are used to guide the carbon ribbon 400, and a guide mounting hole 111 is provided on one of the vertical plates 110.

[0044] Specifically, Figure 3As shown, both ends of the guide rod 150 are fixedly connected to the two vertical plates 110 in a one-to-one correspondence to enclose the two vertical plates 110 to form a accommodating space. The unwinding sleeve 120 is arranged at one end of the accommodating space, and the rotating guide member 140 is arranged at the other end of the accommodating space. The winding sleeve 130 is arranged in the middle of the accommodating space, located between the unwinding sleeve 120 and the rotating guide member 140. Among the multiple guide rods 150, some are arranged on the circumference of the unwinding sleeve 120, and the other part is arranged on one side of the rotating guide member 140. The head of the carbon ribbon 400 is guided to the other part of the guide rods 150 through a part of the guide rods 150 located on the circumference of the unwinding sleeve 120, and then guided to the winding sleeve 130 through the rotating guide member 140.

[0045] In this embodiment, six guide rods 150 are provided, among which three guide rods 150 are provided below the unwinding sleeve 120, and the three guide rods 150 are at different heights from the unwinding sleeve 120, and are arranged at intervals along the length direction of the accommodation space. The remaining three guide rods 150 are located on the side of the rotating guide 140 away from the winding sleeve 130, and the three guide rods 150 are located at different heights. The guide rod 150 located in the middle of the three guide rods 150 is staggered with the other two guide rods 150 to provide better guidance for the carbon ribbon 400, and to keep a certain tension force of the carbon ribbon 400 during the transmission process, thereby ensuring the smoothness of the transmission.

[0046] like Figure 2 and Figure 4 As shown, the printing mechanism 200 includes a shell 201 and an unwinding assembly, a winding assembly, a rotating guide assembly and a mounting rod 205 arranged on the shell 201, two vertical plates 110 are hung on the shell 201, the unwinding shaft 2021 of the unwinding assembly can be inserted into the unwinding sleeve 120 and engage with the unwinding sleeve 120, the winding shaft 2031 of the winding assembly can be inserted into the winding sleeve 130 and engage with the winding sleeve 130, the mounting rod 205 is inserted into the guide mounting hole 111, and one end of the rotating guide member 140 is engaged with the engaging position of the rotating guide assembly.

[0047] Optionally, a hanger 211 is slidably provided on the top surface of the housing 201, and the two vertical plates 110 are hung on the hanger 211 through a connecting assembly. The unwinding assembly, the winding assembly and the rotating guide assembly are all stored in the housing 201. The unwinding shaft 2021 of the unwinding assembly protruding from the housing 201 can be inserted into the unwinding sleeve 120 and be fixedly engaged with the unwinding sleeve 120, so that the unwinding sleeve 120 is driven to rotate through the unwinding shaft 2021. The winding shaft 2031 of the winding assembly protruding from the housing 201 can be inserted into the winding sleeve 130 and be fixedly engaged with the winding sleeve 130, so that the winding sleeve 130 is driven to rotate through the winding shaft 2031. The mounting rod 205 and the clamping position are both exposed to the housing 201, so that the mounting rod 205 is inserted into the guide mounting hole 111, and the clamping position is clamped with the rotating guide member 140. In this embodiment, two mounting rods 205 are arranged at intervals, and two guide mounting holes 111 are also arranged correspondingly. The two mounting rods 205 are plugged into the two guide mounting holes 111 in a one-to-one correspondence, and can stably support the ribbon rack 100. Furthermore, the plug-in end of the mounting rod 205 is arranged in a cone shape, and the small end of the cone shape is arranged toward the guide mounting hole 111, which makes it easier to insert the mounting rod 205.

[0048] By storing the unwinding assembly, the winding assembly and the rotating guide assembly in the shell 201, the shell 201 can form a protective barrier to prevent the unwinding assembly, the winding assembly and the rotating guide assembly from being damaged by the external environment; the hanger 211 is slidably arranged on the top surface of the shell 201. When the carbon ribbon rack 100 needs to be hung, the hanger 211 can slide out from the top surface of the shell 201 to one side of the shell 201, and then the vertical plate 110 is hung on the hanger 211. When the hanger 211 is pushed back again, the carbon ribbon rack 100 can As the hanger 211 moves simultaneously, the carbon ribbon rack 100 naturally droops, and its center of gravity can be located in the middle area of ​​the force point of the hanger 211, so that the unwinding shaft 2021 on the printing mechanism 200 is inserted into the unwinding sleeve 120 and is fixedly engaged with the unwinding sleeve 120, the winding shaft 2031 is inserted into the winding sleeve 130 and is fixedly engaged with the winding sleeve 130, and the mounting rod 205 is inserted into the guide mounting hole 111, and the engaging position is engaged with the rotating guide member 140, so that the carbon ribbon rack 100 is stably hung on the hanger 211.

[0049] Reference Figure 4 and Figure 5 The top surface of the housing 201 is provided with a slide rail 220, and the hanger 211 is provided with a slide groove matching the slide rail 220. The hanger 211 is slidably arranged on the slide rail 220 through the slide groove.

[0050] Specifically, the hanger 211 includes a slide plate 2113 and a horizontal push plate 2111 perpendicular to the slide plate 2113. The slide plate 2113 is provided with a notch for hanging the ribbon rack 100. The horizontal push plate 2111 is arranged close to the notch. Figure 5The bracket 211 slides along the slide rail 220 in the direction of the arrow, so as to be easily pushed manually.

[0051] Specifically, continue to refer to Figure 2 and Figure 5 The connecting assembly includes a connecting rod 180 and a support column 112. The two vertical plates 110 are connected by the connecting rod 180. A hanging block 2112 is arranged on the slide plate 2113. The two vertical plates 110 are arranged with a support column 112 on the side close to each other. The hanging block 2112 is provided with a limiting groove 21121 corresponding to the support column 112. When hanging, the connecting rod 180 is clamped on one side of the hanging block 2112, and the two support columns 112 are respectively limited in the corresponding limiting grooves 21121 to prevent the carbon ribbon rack 100 from deviating left and right, thereby realizing the hanging of the carbon ribbon rack 100.

[0052] Of course, in other embodiments, the connection component can also be configured as a plurality of hooks. Accordingly, a plurality of hanging holes are provided on the slide plate 2113 corresponding to the plurality of hooks, and the carbon ribbon rack 100 is hung by cooperating between the hooks and the hanging holes.

[0053] In this embodiment, preferably, a magnetic block 170 is provided on the ribbon rack 100, and a magnet 214 is provided outside the housing 201 and is magnetically connected to the magnetic block 170, so as to ensure a stable connection between the ribbon rack 100 and the housing 201. When the ribbon rack 100 moves simultaneously with the hanger 211, so that the ribbon rack 100 abuts against the outside of the housing 201, the magnetic block 170 and the magnet 214 attract each other, and the ribbon rack 100 is stably adsorbed on the housing 201, ensuring stability and reliability.

[0054] The slide printing device provided in the present embodiment is assembled by first putting the carbon ribbon 400 on the unwinding sleeve 120, and the carbon ribbon 400 can rotate with the unwinding sleeve 120, then placing the unwinding sleeve 120 on the carbon ribbon rack 100, manually pulling the head of the carbon ribbon 400 so that it is wound around the outer side of multiple guide rods 150, then pasting or clamping the head of the carbon ribbon 400 on the winding sleeve 130 through the rotating guide member 140, and then placing the winding sleeve 130 on the carbon ribbon rack 100, and then hanging the two vertical plates 110 on the shell 201, inserting the unwinding shaft 2021 of the unwinding assembly into the unwinding sleeve 120 and engaging with each other, inserting the winding shaft 2031 of the winding assembly into the winding sleeve 130 and engaging with each other, the mounting rod 205 is inserted into the guide mounting hole 111, and one end of the rotating guide member 140 is inserted into the clamping position of the rotating guide assembly, which is convenient for operation. When the carbon ribbon 400 needs to be replaced, the hanger 211 is first pushed away from the printing mechanism 200 by the horizontal pushing plate 2111, so that the unwinding shaft 2021 is disconnected from the unwinding sleeve 120, the winding shaft 2031 is disconnected from the winding sleeve 130, the mounting rod 205 is disengaged from the guide mounting hole 111, and the engaging position is disengaged from the rotating guide member 140. Then, the carbon ribbon rack 100 is lifted up and moved out, and the carbon ribbon rack 100 can be removed from the printing mechanism 200. At this time, the carbon ribbon 400 installed on the carbon ribbon rack 100 can be replaced without operating inside the slide printing device, which improves the convenience of disassembly and assembly of the carbon ribbon 400 and thereby improves the efficiency of replacing the carbon ribbon 400.

[0055] like Figure 6 As shown, the printing mechanism 200 includes a common shaft 206 and a driving motor 207, the output shaft of the driving motor 207 is connected to the common shaft 206 through a first synchronous belt 208, the unwinding shaft 2021 is connected to the common shaft 206 through a second synchronous belt 209, and the rotating guide shaft 2041 of the rotating guide assembly is connected to the common shaft 206 through a gear assembly 210. This arrangement allows the unwinding shaft 2021 and the rotating guide shaft 2041 to share a driving motor 207, simplifies the complexity of the printing mechanism 200, reduces the space occupied by the mechanism, and reduces the difficulty of electric control and the cost. In this embodiment, a movable sleeve is provided at the end of the rotating guide shaft 2041 close to the rotating guide member 140, and the rotating guide shaft 2041 is also sleeved with a telescopic spring 2042, and the sleeve is reset by the telescopic spring 2042.

[0056] Continue to refer to Figure 3 and Figure 4A first ring sleeve is sleeved on the unwinding shaft 2021, a first convex point position 20211 is provided on the first ring sleeve, and the first ring sleeve abuts against the outside of the shell 201, and a first clamping groove 121 matching with the first convex point position 20211 is provided at the end of the unwinding sleeve 120; a second ring sleeve is sleeved on the winding shaft 2031, a second convex point position 20311 is provided on the second ring sleeve, and the second ring sleeve abuts against the outside of the shell 201, and a second clamping groove 131 matching with the second convex point position 20311 is provided at the end of the winding sleeve 130; a third convex point position 141 is provided at the end of the rotating guide member 140, and the clamping position is set to a third clamping groove 20411 matching with the third convex point position 141, and the third clamping groove 20411 is set at the end of the rotating guide shaft 2041 and exposed to the shell 201. The fixation of the winding sleeve 130 to the winding shaft 2031, the fixation of the unwinding sleeve 120 to the unwinding shaft 2021, and the fixation of the rotating guide 140 to the rotating guide shaft 2041 are all snap-fit ​​fixations, which can be achieved and disengaged by pushing the hanger 211, making it easier to disassemble and assemble the carbon ribbon rack 100 and the printing mechanism 200, thereby further improving the efficiency of replacing the carbon ribbon.

[0057] Exemplarily, the first clamping groove 121, the second clamping groove 131 and the third clamping groove 20411 can be set to a "cross" structure or a "one" structure to improve the clamping reliability. Of course, the first clamping groove 121, the second clamping groove 131 and the third clamping groove 20411 can also be other clamping structures. The fixing of the winding sleeve 130 and the winding shaft 2031, the fixing of the unwinding sleeve 120 and the unwinding shaft 2021, and the fixing of the rotating guide 140 and the rotating guide shaft 2041 can also be plug-in fixing.

[0058] When the carbon ribbon rack 100 is fixed to the shell 201, the first in-position detection optical coupler 212 detects that the carbon ribbon rack 100 is in position, the driving motor 207 is activated, and after the rotating guide 140 rotates a certain angle, the third convex point clamping position 141 and the third clamping groove 20411 cooperate and clamp, after the winding shaft 2031 and the unwinding shaft 2021 each rotate a certain angle, the second convex point clamping position 20311 and the second clamping groove 131 cooperate and clamp, and the first convex point clamping position 20211 and the first clamping groove 121 cooperate and clamp, thereby completing the cooperation between the carbon ribbon rack 100 and the printing mechanism 200.

[0059] In order to ensure the accuracy of the installation position of the ribbon rack 100 on the printing mechanism 200, a first in-position detection optical coupler 212 and a second in-position detection optical coupler 213 are arranged outside the housing 201, wherein a ribbon rack detected protrusion 160 is arranged on one of the vertical plates 110. When the ribbon rack detected protrusion 160 is opposite to the signal receiving groove of the first in-position detection optical coupler 212, the first in-position detection optical coupler 212 sends an in-position signal; when the ribbon 400 is opposite to the signal receiving groove of the second in-position detection optical coupler 213, the second in-position detection optical coupler 213 sends an in-position signal. In this embodiment, the first in-position detection optical coupler 212 is arranged at a position slightly below the center of the line connecting the unwinding shaft 2021 and the winding shaft 2031, and the second in-position detection optical coupler 213 is arranged at the edge of the housing 201, located on the outside of the mounting rod 205.

[0060] The optical coupler is usually composed of a light emitting diode and a phototransistor. When the light emitting diode passes through a conduction current, it starts to emit light, and the phototransistor is turned on after receiving the light. In this embodiment, the slide printing device also includes a control unit, the first in-position detection optical coupler 212 and the second in-position detection optical coupler 213 are both connected to the control unit for communication, and the printing mechanism 200 is electrically connected to the control unit. When the detected protrusion 160 of the ribbon rack is opposite to the signal receiving groove of the first in-situ detection optical coupler 212, the detected protrusion 160 of the ribbon rack blocks the light emitted by the light-emitting diode, and the photosensitive triode cannot receive the light, and the ribbon rack 100 in-situ signal is sent to the control unit. When the ribbon 400 is opposite to the signal receiving groove of the second in-situ detection optical coupler 213, the ribbon 400 blocks the light emitted by the light-emitting diode, and the photosensitive triode cannot receive the light, and the ribbon 400 in-situ signal is sent to the control unit. The control unit will control the printing mechanism 200 to perform subsequent printing actions only when the ribbon rack 100 in-situ signal and the ribbon 400 in-situ signal are received at the same time. By setting the first in-situ detection optical coupler 212 and the second in-situ detection optical coupler 213, it can effectively avoid the ribbon rack 100 and the ribbon 400 from starting the printing action before they are installed in place, resulting in unqualified printing, thereby improving the printing qualification rate of the slide printing device.

[0061] Alternatively, if Figure 6-Figure 8As shown, the unwinding assembly further includes a first torque limiter 2022, which is disposed on the unwinding shaft 2021 and located in the housing 201; the winding assembly further includes a second torque limiter 2032, which is disposed on the winding shaft 2031 and located in the housing 201. During the printing process, the linkage between the winding assembly and the unwinding assembly is achieved by the pulling force of the carbon ribbon 400. By arranging the first torque limiter 2022 on the unwinding shaft 2021 and the second torque limiter 2032 on the winding shaft 2031, abnormal situations such as the carbon ribbon 400 being stuck and being torn can be avoided to a certain extent. When the unwinding side gets stuck, the inner ring of the second torque limiter 2032 on the take-up shaft 2031 will "slip" (the inner ring of the second torque limiter 2032 rotates while the outer ring does not rotate, and the carbon ribbon 400 on the unwinding sleeve 120 and the take-up sleeve 130 are both stationary relative to the printing mechanism 200), thereby avoiding tearing of the carbon ribbon 400; before the take-up side stops winding the carbon ribbon 400, the carbon ribbon 400 is in a state of deceleration movement. Because the unwinding shaft 2021 is provided with a first torque limiter 2022, the carbon ribbon 400 can avoid deceleration overshoot during the unwinding process, thereby ensuring that the carbon ribbon 400 between the take-up sleeve 130 and the unwinding sleeve 120 is always in a taut state.

[0062] Furthermore, the unwinding assembly further includes a first code disc 2023, which is disposed on the unwinding shaft 2021 and located in the housing 201, and is used to detect the number of rotations of the unwinding shaft 2021; the winding assembly further includes a second code disc 2033, which is disposed on the winding shaft 2031 and located in the housing 201, and is used to detect the number of rotations of the winding shaft 2031. In this embodiment, a first code disc optical coupler 2024 is disposed on the first code disc 2023, and a second code disc optical coupler 2034 is disposed on the second code disc 2033. The first code disc 2023 detects the number of rotations of the unwinding shaft 2021 through the first code disc optical coupler 2024, and the second code disc 2033 detects the number of rotations of the winding shaft 2031 through the second code disc optical coupler 2034. During use, when the number of rotations of the take-up shaft 2031 is inconsistent with the number of rotations of the unwinding shaft 2021 , it means that the carbon ribbon 400 may be broken, so that the staff can find the abnormality in time.

[0063] The printing mechanism 200 further includes a print head assembly 215, which is disposed outside the housing 201. The print head assembly 215 includes a thermal print head 2151, a rotating portion 2152, and a driving component 2153. The thermal print head 2151 is disposed on the rotating portion 2152, and the driving component 2153 is used to drive the rotating portion 2152 to rotate. The driving component 2153 includes a print head motor 21531, and the print head motor 21531 is used as a power member to provide power to the rotating portion 2152. When in use, the glass slide 300 is transported to the bottom of the thermal print head 2151, and the thermal print head 2151 rotates a certain angle ( Figure 4 The rotation direction of the thermal print head 2151 is shown in the figure, and the rotation angle can be determined according to the fixed angle specified by the conventional angled thermal print head). At this time, the printing hot spot at the front end of the thermal print head 2151 presses down the carbon ribbon 400 and presses the carbon ribbon 400 tightly against the printing area 310 of the glass slide 300. In actual use, the thermal print head 2151 is electrically connected to the blood smear preparation instrument. The printing hot spot at the front end of the thermal print head 2151 prints line by line according to the information sent by the control system of the blood smear preparation instrument. During the line change process, the drive motor 207 drives the winding, and the carbon ribbon 400 is wound to a certain length (≥1 line of printing hot spot thermal printing distance). At the same time, the glass slide 300 also moves a line distance with the conveying mechanism at the same time. The thermal print head 2151 prints again according to another line of information sent by the control system of the blood smear preparation instrument, and prints all the information that needs to be printed in each line in turn. After printing is completed, the thermal print head 2151 moves with the rotating part 2152, lifts upward and away from the carbon ribbon 400, and at the same time, the winding sleeve 130 winds up a certain length of the carbon ribbon 400, the carbon ribbon 400 returns to the taut state, the glass slide 300 is separated from the carbon ribbon 400, and the glass slide 300 is transported to the subsequent processing flow along with the conveying mechanism.

[0064] As a preference, continue to refer to Figure 2 , Figure 4 and Figure 8 The printing mechanism 200 also includes a flattening and pressing component, which includes a flattening shaft and a flattening roller 218 sleeved on the flattening shaft. The flattening shaft is arranged on the housing 201 and is spaced above the rotating guide 140. The flattening roller 218 can press the carbon ribbon 400 so that the carbon ribbon 400 is in a taut state.

[0065] Furthermore, the flattening and clamping assembly also includes a reset spring 217 and a linkage flattening member 219. One end of the reset spring 217 is connected to the shell 201, and the other end is connected to the flattening shaft. The linkage flattening member 219 is arranged on the outside of the shell 201 and is located below the unwinding sleeve 120. The flattening shaft cooperates with the reset spring 217 to deflect the angle together with the thermal print head 2151. The flattening roller 218 and the linkage flattening member 219 simultaneously press the carbon ribbon 400, so that the carbon ribbon 400 is close to the rotating guide 140, so as to prevent the carbon ribbon 400 from curling and loosening during printing, thereby affecting the printing effect.

[0066] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A slide printing device, characterized in that: include: A carbon ribbon rack (100) comprises two vertical plates (110) parallel to each other, a reeling sleeve (120) and a reeling sleeve (130) respectively arranged on the two vertical plates (110), a rotating guide member (140) rotatably arranged between the two vertical plates (110), and a plurality of guide rods (150) arranged between the two vertical plates (110) and surrounding the reeling sleeve (120) and the reeling sleeve (130), wherein the guide rods (150) are used to guide the carbon ribbon (400), and a guide mounting hole (111) is provided on one of the vertical plates (110); The printing mechanism (200) comprises a shell (201) and an unwinding assembly, a rewinding assembly, a rotating guide assembly and a mounting rod (205) arranged on the shell (201); the two vertical plates (110) are hung on the shell (201); the unwinding shaft (2021) of the unwinding assembly can be inserted into the unwinding sleeve (120) and engage with the unwinding sleeve (120); the rewinding shaft (2031) of the rewinding assembly can be inserted into the rewinding sleeve (130) and engage with the rewinding sleeve (130); the mounting rod (205) is inserted into the guide mounting hole (111); and one end of the rotating guide member (140) is engaged with the engaging position of the rotating guide assembly.

2. The slide printing device according to claim 1, characterized in that: The printing mechanism (200) comprises a common shaft (206) and a driving motor (207); the output shaft of the driving motor (207) is connected to the common shaft (206) through a first synchronous belt (208); the unwinding shaft (2021) is connected to the common shaft (206) through a second synchronous belt (209); and the rotating guide shaft (2041) of the rotating guide assembly is connected to the common shaft (206) through a gear assembly (210).

3. The slide printing device according to claim 1, characterized in that: A hanging rack (211) is slidably provided on the top surface of the shell (201), and the two vertical plates (110) are hung on the hanging rack (211) via a connecting assembly, and the unwinding assembly, the winding assembly and the rotating guide assembly are all accommodated in the shell (201).

4. The slide printing device according to claim 1, characterized in that: A first in-position detection optical coupler (212) and a second in-position detection optical coupler (213) are arranged outside the shell (201), wherein one of the vertical plates (110) is provided with a carbon ribbon rack detected protrusion (160), and when the carbon ribbon rack detected protrusion (160) is opposite to a signal receiving groove of the first in-position detection optical coupler (212), the first in-position detection optical coupler (212) sends out an in-position signal; when the carbon ribbon (400) is opposite to the signal receiving groove of the second in-position detection optical coupler (213), the second in-position detection optical coupler (213) sends out an in-position signal.

5. The slide printing device according to claim 1, characterized in that: The carbon ribbon rack (100) is provided with a magnetic block (170), and the shell (201) is provided with a magnet (214) magnetically connected to the magnetic block (170) to ensure a stable connection between the carbon ribbon rack (100) and the shell (201).

6. The slide printing device according to claim 1, characterized in that: The unwinding shaft (2021) is sleeved with a first ring sleeve, the first ring sleeve is provided with a first convex point clamping position (20211), and the first ring sleeve is abutted against the outside of the shell (201), and the end of the unwinding sleeve (120) is provided with a first clamping groove (121) that cooperates with the first convex point clamping position (20211); The winding shaft (2031) is sleeved with a second ring sleeve, the second ring sleeve is provided with a second convex point clamping position (20311), and the second ring sleeve is abutted against the outside of the shell (201), and the end of the winding sleeve (130) is provided with a second clamping groove (131) that cooperates with the second convex point clamping position (20311); A third convex point latching position (141) is provided at the end of the rotation guide member (140), and the latching position is configured as a third latching groove (20411) that cooperates with the third convex point latching position (141).

7. The slide printing device according to claim 1, characterized in that: The unwinding assembly further comprises a first torque limiter (2022), wherein the first torque limiter (2022) is arranged on the unwinding shaft (2021) and is located inside the housing (201); The winding assembly further comprises a second torque limiter (2032), wherein the second torque limiter (2032) is arranged on the winding shaft (2031) and is located inside the housing (201).

8. The slide printing device according to claim 1, characterized in that: The unwinding assembly further comprises a first code disc (2023), wherein the first code disc (2023) is arranged on the unwinding shaft (2021) and is located in the housing (201), and the first code disc (2023) is used to detect the number of rotations of the unwinding shaft (2021); The winding assembly further comprises a second code disc (2033), wherein the second code disc (2033) is arranged on the winding shaft (2031) and is located in the housing (201), and the second code disc (2033) is used to detect the number of rotations of the winding shaft (2031).

9. The slide printing device according to claim 1, characterized in that: The printing mechanism (200) further comprises a print head assembly (215), wherein the print head assembly (215) is arranged outside the housing (201), and the print head assembly (215) comprises a thermal print head (2151), a rotating part (2152) and a driving component (2153), wherein the thermal print head (2151) is arranged on the rotating part (2152), and the driving component (2153) is used to drive the rotating part (2152) to rotate.

10. The slide printing device according to claim 1, characterized in that: The printing mechanism (200) further comprises a flattening and pressing assembly, which comprises a flattening shaft and a flattening roller (218) sleeved on the flattening shaft. The flattening shaft is arranged on the housing (201) and is spaced above the rotating guide member (140).

Images