CN217197475U

CN217197475U - Printing mechanism and thermal transfer printer thereof

Info

Publication number: CN217197475U
Application number: CN202022356727.7U
Authority: CN
Inventors: 何武文; 张福松; 陈文建; 江小军; 鲁其澜; 牛加新
Original assignee: Shenzhen Emperor Technology Co Ltd
Current assignee: Shenzhen Emperor Technology Co Ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2022-08-16
Anticipated expiration: 2030-10-21

Abstract

The utility model relates to a printing apparatus technical field, concretely relates to printing mechanism and heat-transfer seal printer thereof, it includes: the main machine body is provided with an upper cover; a colored tape assembly position is arranged in the main machine body, a colored tape module is placed in the colored tape assembly position, a positioning piece for positioning the colored tape module is arranged on the edge of the colored tape assembly position, a colored tape reel and a waste tape reel are fixed in the colored tape module, a printing head accommodating position is arranged between the colored tape reel and the waste tape reel, a printing head is accommodated in the printing head accommodating position, and the printing head is fixedly assembled on the upper cover; the utility model installs the ribbon reel and the waste ribbon reel on the ribbon module, and the printing head in the printing mechanism is assembled on the upper cover of the main body; when the ribbon reel and the waste ribbon reel need to be replaced, the ribbon module can be directly taken out only by opening the upper cover, so that the ribbon reel and the waste ribbon reel can be replaced simultaneously, the replacement process is simple, and the operation is very convenient.

Description

Printing mechanism and thermal transfer printer thereof

Technical Field

The utility model relates to a printing apparatus technical field, concretely relates to printing mechanism and a heat-transfer seal printer that has this printing mechanism.

Background

With the development of industrial automation technology, the application of color printers is more and more extensive; people often use color printers to print various certificates, labels, tags, etc.; color printers on the market today can be mainly classified into four categories, namely dot matrix printers, ink jet printers, laser printers, and thermal transfer printers; the thermal transfer printer is also called a dye sublimation printer, which uses a print head (thermal print head) to heat a ribbon to transfer the dye on the ribbon onto a printing medium, and forms continuous color levels according to the heating time or the heating temperature. The thermal transfer printer has excellent printing quality and continuity in tone expression, so that the printed photos have more natural colors and are suitable for developing printers special for digital cameras, and the thermal transfer printer is more and more emphasized by the market.

The ribbon in the existing thermal transfer printer is a printing consumable material, which needs to be replaced frequently; in the existing thermal transfer printer, a ribbon reel and a waste ribbon reel are fixedly arranged; when the ribbon needs to be replaced, the partition plate in the thermal transfer printer needs to be removed firstly, then the ribbon reel and the waste tape reel are removed respectively, and after the ribbon reel and the waste tape reel are replaced respectively, the partition plate needs to be installed again, so that the replacement process is troublesome, and the operation is very inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defects, the present invention provides a printing mechanism and a thermal transfer printer having the same, which are convenient for replacing a ribbon reel and a waste ribbon reel.

The purpose of the utility model is realized through the following technical scheme:

the utility model relates to a printing mechanism, it includes:

the main machine body is provided with an upper cover; establish colored area assembly position in the host computer body, place colored area module in the colored area assembly position, it is right to be equipped with on the edge of colored area assembly position the colored area module carries out the setting element of fixing a position, be fixed with colored tape spool and waste tape spool in the colored tape module, it holds the position to be equipped with between colored tape spool and the waste tape spool and beats printer head, it holds to have in the position to beat printer head and beats printer head fixed assembly in on the upper cover.

The utility model discloses in, the one end of upper cover through first pivot articulate in on the host computer body, and the other end of this upper cover be equipped with this host computer body complex hasp.

In the utility model, a limiting shaft is arranged on the side surface of the printing head, a limiting groove extending downwards is arranged on the lower surface of the upper cover, and the limiting shaft is inserted into the limiting groove; the upper cover is also provided with an elastic pressing piece, and the lower end of the elastic pressing piece is abutted to the top of the printing head.

The utility model discloses in, typewriter ribbon module includes: the installation frame, the equal activity of typewriter ribbon spool and waste tape spool is located in the installation frame, all be equipped with the gear face on typewriter ribbon spool and waste tape spool's the end, the gear face stretch out to on the lateral surface of installation frame, and respectively with install in typewriter ribbon motor and waste tape motor on the host computer body pass through gear drive spare and cooperate, be equipped with the typewriter ribbon handle on the installation frame.

The utility model discloses in, it has the lifting frame to articulate through the second pivot in the host computer body, the first of lifting frame serves and is equipped with the portion of lifting that upwards stretches out, lift the portion with beat printer head and meet, the second of lifting frame is served and is equipped with the step of lifting that stretches out downwards, it has connect the electric drive spare to lift on the step, be equipped with the printing passageway that supplies the printing medium to get into in the host computer body, beat printer head set up in the top of printing the passageway, the lifting frame is arranged in the below of printing the passageway, lift the portion of lifting and pass from the outside print behind the passageway, with beat printer head and meet.

In the present invention, the electric drive includes: the motor is fixed on the main machine body, and the output end of the motor is connected with a cam; the lifting step is provided with a roller, and the cam is tangent to the upper end of the roller.

The utility model discloses in, be equipped with the lifting round pin post on the side of beating the printer head lower part, lift the portion with the lifting round pin post cooperatees.

The utility model discloses in, the second end of lifting frame is connected with the one end of extension spring, the other end of extension spring is fixed in the buckle epaxial of host computer body.

Based on the same concept, the present invention also provides a thermal transfer printer, comprising: the main body is provided with a printing channel for printing media to enter, and a material sending end in the material sending mechanism is in butt joint with the printing channel in the printing mechanism through a conveying channel.

The utility model discloses in, the transfer passage top is equipped with the bar code rifle, just the scanning end orientation of bar code rifle transfer passage.

The utility model installs the ribbon reel and the waste ribbon reel on the ribbon module, the ribbon module is placed in the ribbon assembly position in the main body, and the printing head in the printing mechanism is assembled on the upper cover of the main body; when the ribbon reel and the waste ribbon reel need to be replaced, the ribbon module can be directly taken out only by opening the upper cover and the ribbon module can be replaced simultaneously by placing a new ribbon module, the replacement process is simple, and the operation is very convenient.

Drawings

For ease of illustration, the present invention is described in detail in the following description of the preferred embodiments and in the accompanying drawings.

FIG. 1 is a schematic view of the printing mechanism of the present invention in an open state of the upper cover;

FIG. 2 is a schematic view of the printing mechanism of the present invention at an angle;

FIG. 3 is a schematic view of the printing mechanism of the present invention at another angle;

FIG. 4 is a schematic view of a part of the internal structure of the printing mechanism of the present invention;

FIG. 5 is a schematic view of a ribbon module of the printing mechanism of the present invention;

FIG. 6 is a schematic view of an assembly structure of an upper cover and a print head in the printing mechanism of the present invention;

fig. 7 is a schematic structural view of a lifting frame in the printing mechanism of the present invention;

FIG. 8 is a schematic view of an assembly structure of a motor and a cam in the printing mechanism of the present invention;

fig. 9 is a schematic view of the overall structure of the printing apparatus of the present invention.

Description of reference numerals: 100. a printing mechanism; 101. a main body; 102. an upper cover; 103. a ribbon module; 104. a positioning member; 105. a ribbon spool; 106. a scrap tape spool; 107. a print head containing bit; 108. a print head; 109. locking; 110. buckling a shaft; 111. a handle is covered on the upper cover; 112. limiting the clamp shaft; 113. an elastic pressing member; 114. a color band handle; 115. a ribbon motor; 116. a scrap tape motor; 117. a ribbon spool gear drive; 118. a scrap tape spool gear drive; 119. lifting the frame; 120. a lifting part; 121. lifting the step; 122. a motor; 123. a cam; 124. a roller; 125. a tension spring; 126. a second rotating shaft; 127. Lifting the pin column; 128. a ribbon spool gear face; 129. a scrap tape spool gear face; 130. a position sensor; 131. a drive motor; 200. a material sending mechanism; 300. a print medium; 400. a bar code gun.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. They may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

An embodiment of a printing mechanism of the present invention is described in detail below with reference to fig. 1 to 8, which include:

the device comprises a main machine body 101, wherein an upper cover 102 capable of being movably opened and closed is arranged on the main machine body 101; a colored ribbon assembly position is arranged in the host machine body 101, an colored ribbon module 103 is arranged in the colored ribbon assembly position, the colored ribbon module 103 is directly arranged in the colored ribbon assembly position without being locked by parts such as screws, a positioning part 104 for positioning the colored ribbon module 103 is arranged on the edge of the colored ribbon assembly position, and the positioning part 104 is arranged on the edge of the colored ribbon assembly position, so that the colored ribbon module 103 can be matched with the colored ribbon assembly position to prevent the colored ribbon module 103 from horizontally moving in the host machine body 101; an ink ribbon reel 105 and a waste tape reel 106 are fixed in the ink ribbon module 103, a print head accommodating position 107 is arranged between the ink ribbon reel 105 and the waste tape reel 106, a print head 108 is accommodated in the print head accommodating position 107, and the print head 108 is fixedly assembled on the upper cover 102; and the ribbon in the ribbon spool 105 passes through the print station at the lower end of the print head 108 and into the waste spool 106. The ribbon spool 105 is wound with the ribbon to be thermally transferred, and the waste ribbon spool 106 is wound with the waste ribbon to be thermally transferred.

In this embodiment, since the ribbon spool 105 and the waste ribbon spool 106 are integrally mounted on the ribbon module 103, when the ribbon spool 105 and the waste ribbon spool 106 in the printing mechanism need to be replaced, only the upper cover 102 needs to be opened first, and the print head 108 is fixedly mounted on the upper cover 102, so that after the upper cover 102 is opened, the print head 108 will be moved away from the print head accommodating position 107, and then the ribbon module 103 in the main body 101 is completely taken out, and after a new ribbon module 103 is put into the ribbon mounting position, the replacement of the ribbon spool 105 and the waste ribbon spool 106 can be completed by closing the upper cover 102, which is very simple and fast to assemble.

In this embodiment, one end of the upper cover 102 is hinged to the main body 101 through a first rotating shaft, and the other end of the upper cover 102 is provided with a latch 109 engaged with the main body 101, and the latch 109 is fastened on a latch shaft 110 of the main body 101, and the latch shaft 110 is fixedly mounted on the main body 101, so that the whole ribbon module 103 can be exposed, thereby facilitating the user to replace the ribbon module 103; and an upper cover handle 111 is provided on the upper surface of the upper cover 102. When a user needs to replace the ribbon module 103 in the main body 101, the user only needs to open the lock 109 on the upper cover 102, and then can turn over and open the upper cover 102 by the upper cover handle 111, because the print head 108 in the main body 101 is fixedly mounted on the lower surface of the upper cover 102, after the upper cover 102 is turned over, the print head 108 is also driven by the upper cover 102 and moves away from the print head accommodating position 107; at this time, the ribbon module 103 can be directly taken out to be replaced; after the ribbon module 103 is replaced, the upper cover 102 is turned over to cover the main body 101, and the print head 108 is driven by the upper cover 102 to be directly connected to the print head accommodating position 107.

In this embodiment, a limiting shaft 112 is disposed on a side surface of the print head 108, a limiting groove extending downward is disposed on a lower surface of the upper cover 102, and the limiting shaft 112 is inserted into the limiting groove; the limit clamp shaft 112 can move up and down in the limit groove; the upper cover 102 is further provided with an elastic pressing member 113, and a lower end of the elastic pressing member 113 abuts against a top of the print head 108. Wherein, this elasticity compresses tightly piece 113 includes: an adjusting screw rod arranged on the upper surface of the upper cover 102, the lower end of the adjusting screw rod penetrates out of the lower surface of the upper cover 102 and then is connected with a spring, the lower end of the spring is connected with a pressing block, and the pressing block is abutted against the top of the printing head 108, so that the pressing block can provide downward pressure for the printing head 108; when the print head 108 is hot-pressed, the ribbon needs to be pressed down, so that the print head 108 and the ribbon are better pressed on the print medium 300, and therefore, the elastic pressing piece 113 applies a downward force to the print head 108, so that the printing effect is better; and, the magnitude of the downward pressure of the elastic pressing member 113 can be adjusted by adjusting screws, preferably, the number of the adjusting screws is four, and each adjusting screw is connected with a spring.

Referring to fig. 5, in the present embodiment, the ribbon module 103 includes: mounting bracket 114, and this mounting bracket 114 is including setting up the side wall board on both sides face, is fixed with the connecting rod between the side wall board, the equal activity of both ends of ribbon spool 105 and waste tape spool 106 is worn to locate in the both sides wall board of mounting bracket 114, be equipped with ribbon spool gear face 128 and waste tape spool 129 on one end of ribbon spool 105 and waste tape spool 106 respectively, ribbon spool gear face 128 and waste tape spool 129 all stretch out to on the lateral surface of mounting bracket 114 side wall board to cooperate through ribbon shaft gear drive 117 and waste tape motor gear drive 118 with ribbon motor 115 and waste tape motor 116 installed on main body 101 respectively, when mounting bracket 114 was placed in the ribbon equipment coordination, the gear face on its ribbon spool 105 and waste tape spool 106 can mesh with ribbon spool gear drive 117 and waste tape motor gear drive 118 installed on main body 101, the assembly is extremely simple; and the upper ends of the two side wall plates are bridged with the colored belt handle 114; in the embodiment, the ribbon handle 114 is arranged on the mounting frame 114, so that a user can take out the ribbon module 103 through the ribbon handle 114 conveniently; the ribbon motor 115 and the ribbon waste motor 116 are respectively connected to gear surfaces of the ribbon spool 105 and the ribbon waste spool 106 through gear transmission members, so that the ribbon motor 115 can drive the ribbon spool 105 to rotate on the mounting bracket 114, the ribbon wound around the ribbon spool 105 is output from the ribbon spool 105 and is thermally transferred below the printing head 108, the ribbon becomes a ribbon waste after being thermally transferred, and the ribbon waste motor 116 can drive the ribbon waste spool 106 to rotate on the mounting bracket 114, so that the ribbon waste after passing below the printing head 108 is wound around the ribbon waste spool 106 to store the ribbon waste.

In this embodiment, a lifting frame 119 is hinged to the main body 101 through a second rotating shaft 126, a lifting portion 120 extending upward is disposed at a first end of the lifting frame 119, the lifting portion 120 is connected to the print head 108, a lifting step 121 extending downward is disposed at a second end of the lifting frame 119, and an electric driving member is connected to the lifting step 121. The side surface of the lower portion of the print head 108 is provided with a lift pin, and the lift portion 120 is engaged with the lift pin 127. A printing channel for the printing medium 300 to enter is arranged in the main body 101, the printing head 108 is arranged above the printing channel, the printing medium 300 is subjected to thermal transfer printing by the printing head 108 in the printing channel after entering the printing channel, and the printing medium 300 is sent out from the printing channel after the thermal transfer printing is finished; the lifting frame 119 is disposed below the printing channel, and the lifting portion 120 is connected to the printing head 108 after passing through the printing channel from the outside thereof. And, the bottom of the printing channel is provided with a transmission wheel set, the transmission wheel set is used for feeding the printing medium 300 into or out of the printing channel, and the transmission wheel set is connected with a transmission motor 131, and the transmission motor 131 is used for driving the transmission wheel set.

Since the print head 108 needs to press the ribbon downwards, the print head 108 is in a downwards pressing state in a normal state, and when the print medium 300 is completely printed and is conveyed out of the printing mechanism, and a new print medium 300 enters the printing mechanism again, the print head 108 in the downwards pressing state can block the printing channel, so that the print medium 300 is prevented from entering the lower part of the print head 108, and therefore, before the print medium 300 enters the lower part of the print head 108, the print head 108 needs to be lifted up to free the printing channel, so that the print medium 300 enters the lower part of the print head 108, and then the print head 108 is controlled to fall down again to press the print medium 300, so that the main body 101 in this embodiment is hinged with a lifting frame 119; when the print head 108 needs to be lifted, the electric driver controls the lifting step 121 on the second end of the lifting frame 119 to move downward, and since the second rotating shaft 126 is disposed in the middle of the lifting frame 119, the lifting portion 120 disposed on the first end of the lifting frame 119 moves upward, so that the lifting pin 127 fixed on the side surface of the print head 108 is forced upward, and the print head 108 is lifted; when it is desired to lower the print head 108, the lifting step 121 at the second end of the lifting frame 119 is controlled by the electric driver to move upward, so that the lifting portion 120 disposed at the first end of the lifting frame 119 moves downward, and the print head 108 moves downward under its own weight and the elastic pressing member 113 to drop into the printing passage.

In this embodiment, the electric drive includes: a motor 122 fixed on the main body 101, wherein the output end of the motor 122 is connected with a cam 123; the lifting step 121 is provided with a roller 124, and the cam 123 is tangent to the upper end of the roller 124. The motor 122 drives the cam 123 to rotate, and when the protruding part of the cam 123 is pressed under the roller 124, the lifting step 121 of the lifting frame 119 can be moved downwards. A position sensor 130 is fitted to the outside of the cam 123, and the position sensor 130 detects the position state of the cam 123. The second end of the lifting frame 119 is connected to one end of a tension spring 125, and the other end of the tension spring 125 is fixed to the positioning shaft of the main body 101. When the print head 108 needs to be lifted, the protruding part of the driving cam 123 of the electric driver is pressed under the roller 124, so that the lifting step 121 on the lifting frame 119 moves downwards, and the tension spring 125 is in a tensioned state; when the protruding part of the cam 123 is not pressed under the roller 124, the tension spring 125 contracts, and the lifting step 121 on the lifting frame 119 is driven to move upwards.

In another embodiment, the electric drive includes: a cylinder (not shown) fixed on the main body 101, and an output end of the cylinder (not shown) is connected to the lifting step 121, so that the lifting step 121 can swing up and down along with the expansion and contraction of the cylinder (not shown), and therefore, in this embodiment, the tension spring 125 may not be provided between the lifting frame 119 and the main body 101.

An embodiment of a thermal transfer printer according to the present invention is described in detail below, with reference to fig. 9, which includes:

the material sending mechanism 200 and the printing mechanism 100 as described above, a printing channel for the printing medium 300 to enter is provided in the main body, and the material sending end in the material sending mechanism 200 is butted with the printing channel in the printing mechanism 100 through a conveying channel. The feeding mechanism 200 is used for storing the printing medium 300 and feeding the printing medium 300 one by one to the printing mechanism 100, and the printing mechanism 100 prints the characters and patterns to be printed on the printing medium 300 by means of thermal transfer printing through an ink ribbon.

In this embodiment, a barcode gun 400 is disposed above the conveying channel, and a scanning end of the barcode gun 400 faces the conveying channel. The barcode gun 400 is used for scanning barcodes on the printing medium 300, and the barcodes can be printed on the upper surface of the printing medium 300 in advance, wherein the content of the barcodes is the content to be printed by a printing mechanism, such as characters, patterns and the like; the barcode gun 400 sends the scanned barcode content to the subsequent printing mechanism 100, and after the printing medium 300 enters the printing mechanism 100 from the feeding mechanism, the printing mechanism 100 can print the content on the printing medium 300 according to the barcode.

In the description of the present specification, reference to the description of "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A printing mechanism, comprising:

2. A printing mechanism according to claim 1, wherein one end of the upper cover is hinged to the main body via a first hinge, and the other end of the upper cover is provided with a latch cooperating with the main body.

3. The printing mechanism according to claim 2, wherein a limit shaft is arranged on a side surface of the printing head, a limit groove extending downwards is arranged on a lower surface of the upper cover, and the limit shaft is inserted into the limit groove; the upper cover is also provided with an elastic pressing piece, and the lower end of the elastic pressing piece is abutted against the top of the printing head.

4. A print mechanism as claimed in claim 1, wherein the ribbon module comprises: mounting bracket, the equal activity of typewriter ribbon spool and waste tape spool is located in the mounting bracket, all be equipped with the gear face on the tip of typewriter ribbon spool and waste tape spool, the gear face stretches out to on the lateral surface of mounting bracket to respectively with install in typewriter ribbon motor and waste tape motor on the host computer body cooperate through gear drive spare, be equipped with the typewriter ribbon handle on the mounting bracket.

5. The printing mechanism as claimed in claim 1, wherein the main body is hinged to a lifting frame via a second pivot, a first end of the lifting frame is provided with a lifting portion extending upward, the lifting portion is connected to the printing head, a second end of the lifting frame is provided with a lifting step extending downward, the lifting step is connected to an electric driving member, the main body is further provided with a printing channel for a printing medium to enter, the printing head is disposed above the printing channel, the lifting frame is disposed below the printing channel, and the lifting portion passes through the printing channel from outside and then is connected to the printing head.

6. A printing mechanism as claimed in claim 5, wherein the electrical drive comprises: the motor is fixed on the main machine body, and the output end of the motor is connected with a cam; the lifting step is provided with a roller, and the cam is tangent to the upper end of the roller.

7. A printing mechanism as claimed in claim 6, wherein the printhead has lift pins on its lower side, the lift portion engaging the lift pins.

8. The printing mechanism of claim 7, wherein a second end of the lifting frame is connected to one end of a tension spring, and the other end of the tension spring is fixed to a positioning shaft of the main body.

9. A thermal transfer printer, comprising: a dispensing mechanism and a printing mechanism as claimed in any one of claims 1 to 8, wherein a printing channel for the entry of a printing medium is provided in the main body, and a dispensing end of the dispensing mechanism is connected to the printing channel of the printing mechanism via a feeding channel.

10. The thermal transfer printer of claim 9, wherein a barcode gun is disposed above the transport path with a scanning end of the barcode gun facing the transport path.