Two-color label printing device and method for realizing two-color label printing

Abstract

The present invention relates to the field of label printing technology, and specifically to a two-color label printing device and a method for realizing two-color label printing, including the steps of printing preparation - installation of thermal paper and carbon ribbon - label printing - carbon ribbon recovery - label separation. In the present invention, by using monochrome thermal paper to make labels, and using them together with carbon ribbons of different colors from the thermal coating, wherein the carbon ribbon width is smaller than the width of the monochrome thermal paper, and using monochrome color thermal synthetic paper to make labels, the cost can be effectively controlled, and no special coating equipment is required. The monochrome carbon ribbon is used for the different color areas, and the process is relatively simple. The transverse thermal coating and the carbon ribbon coating are heated at the same time, avoiding the waste of segmentation, saving the use of carbon ribbon, and improving the printing speed. The use of monochrome carbon ribbon and monochrome thermal label paper avoids the situation that the winding length of different color carbon ribbons may be inconsistent due to different thicknesses, which is conducive to improving the stability of the printing effect.

Description

Technical Field

[0001] The present invention relates to the technical field of label printing, and in particular to a two-color label printing device and a method for realizing two-color label printing. Background Art

[0002] Label printing is the process of using a printer to print information onto label materials. It is widely used in logistics, inventory management, product identification, safety identification, medical records, asset tracking and other fields. Label printers usually use thermal printing or thermal transfer technology. Thermal printing uses special thermal paper to produce images through heating elements, while thermal transfer uses carbon ribbon to transfer the image to the label.

[0003] Existing thermal transfer ribbons are basically single-color. If you print black, you need to use a black ribbon, and if you print red, you need to use a red ribbon. Frequently changing the ribbon during the printing process is not only cumbersome, but also affects the overall printing positioning effect. When printing multi-color labels, the multi-color thermal solution is to paint different areas of the label's thermal coating with different colors. This method has a high consumable cost. There are two multi-color thermal transfer solutions: parallel splicing of ribbons and superimposed color printing of ribbons. The parallel splicing of ribbons is to use different colors of carbon on the label. The ribbons are spliced ​​horizontally on an axis, and when heated, toner of different colors are sintered in different areas of the label to achieve multi-color printing in different areas. This solution requires differential design for the supply and recovery of ribbons of different colors, and has a complex structure and is not easy to implement. The overlay color printing of ribbons is to arrange ribbons of multiple colors in segments, and use marked color blocks to distinguish multiple paper feeds and prints during printing to achieve multi-color printing. This solution has a relatively slow printing speed due to segmented printing, and the ribbon manufacturing process is complex and requires special coating equipment, resulting in a high cost. Summary of the invention

[0004] The object of the present invention is to provide a two-color label printing device and a method for implementing two-color label printing, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A method for realizing two-color label printing includes the steps of printing preparation—installation of thermal paper and carbon ribbon—label printing—carbon ribbon recycling—label separation. The specific steps are as follows:

[0007] Step (1) Printing preparation: Use monochrome thermal paper to make labels, and use them with a carbon ribbon of a color different from that of the thermal coating, wherein the width of the carbon ribbon is smaller than that of the monochrome thermal paper;

[0008] Step (2) Installation of thermal paper and carbon ribbon: Place the monochrome thermal paper into the printer, and place the carbon ribbon into the winding module, pass the carbon ribbon through the printer, and pass the monochrome thermal paper out of the printer, so that the carbon ribbon covers the monochrome thermal paper;

[0009] Step (3) label printing: The thermal paper is printed by a printer. During the printing process, the thermal coating of the thermal paper is heated and begins to develop color. Since the carbon ribbon is in contact with the thermal paper, the toner on the carbon ribbon is heated and covers the thermal coating, covering the original color of the thermal coating, thereby displaying the color of the carbon ribbon. The area of ​​the thermal paper that is not covered by the carbon ribbon displays the color of the thermal coating, while the area of ​​the thermal paper that is covered by the carbon ribbon displays the color of the toner, thereby achieving two-color printing.

[0010] Step (4) Carbon ribbon recycling: The printed and used portion of the carbon ribbon is reeled up and recycled, so that the carbon ribbon and thermal paper are separated in time after printing is completed, and the label printing effect can be observed immediately;

[0011] Step (5) Label separation: Use a cutting structure to cut the printed thermal paper into individual labels.

[0012] Furthermore, when the carbon ribbon is covered on the thermal paper in step (2), the carbon ribbon is covered on one side or in the middle of the monochrome thermal paper according to printing needs, so that the color on the carbon ribbon is displayed on one side or in the middle of the thermal paper.

[0013] Furthermore, when the carbon ribbon is loaded into the winding module in step (2), if the carbon ribbon width is greater than the required width, the carbon ribbon is cut using the winding module, and then the carbon ribbon of appropriate width is passed into the printer for printing, and the unused carbon ribbon is collected for future use.

[0014] A two-color label printing device, the device comprising a printer and a matching winding module, the printer comprising:

[0015] A machine body, used for loading a roll of thermal paper, wherein a conveying roller is arranged on a side of the top inner side of the machine body away from the winding module;

[0016] The top cover is rotatably connected to the machine body at the side close to the winding module through a hinge. A print head is arranged on the inner side of the top cover corresponding to the conveying roller. The thermal paper and the carbon ribbon can pass through between the conveying roller and the print head. The thermal paper and the carbon ribbon are conveyed by the rotation of the conveying roller, and the thermal paper and the carbon ribbon are heated by the print head, so that the thermal paper is heated to display the corresponding printed content, and the toner on the carbon ribbon is heated to cover the thermal paper.

[0017] Furthermore, the printer further comprises two conveying rods, the two conveying rods are rotatably connected to the inside of the machine body and the inside of the top cover respectively, and the conveying rods are located on one side of the machine body close to the winding module;

[0018] A base is provided at the bottom of the printer;

[0019] The winding module comprises:

[0020] A shell, wherein the side surface of the shell contacts the side surface of the machine body, and the bottom of the side surface of the shell is slidably plugged with the inner side surface of the base, an opening groove 1 is provided on the side surface of the shell corresponding to the conveying rod, an opening groove 2 is provided on the side surface of the shell at the top of the opening groove 1, a sliding groove is provided on the inner side surface of the shell, a connecting rod 1 and a connecting rod 2 are provided inside the shell corresponding to the sliding groove, a cushion rod 2 is provided between the connecting rod 1 and the connecting rod 2, the top and bottom of the inner side surface of the shell are rotatably connected to the cushion rod 1 corresponding to the sliding groove, a side of the inner side surface of the shell close to the opening groove 1 is rotatably connected to the conveying shaft, and the end of the conveying shaft close to the shell opening side is rotatably connected to the rotating rod;

[0021] A limiting mechanism is located inside the housing and corresponds to the top of the conveying shaft, and the limiting mechanism is used to convey the carbon ribbon;

[0022] The cutting mechanism is located inside the housing and corresponds to the first opening slot, the limiting mechanism is located between the cutting mechanism and the second connecting rod, and the cutting mechanism is used to cut the carbon ribbon;

[0023] An adjusting mechanism is located between the limiting mechanism and the second connecting rod;

[0024] The driving motor is fixedly connected to the inner side of the shell and corresponds to the conveying shaft. The output end of the driving motor is transmission-connected to a driving shaft fixedly connected to the end of the conveying shaft. The side surface of the driving shaft is rotationally connected to the inner side surface of the shell.

[0025] Furthermore, the winding module further comprises:

[0026] The transmission box, the side surface of which is slidably connected to the inner side surface of the sliding groove, and the side surface of the transmission box is slidably connected to the inner side surface of the housing, the side surface of the transmission box is rotatably connected to the two ends of the connecting rod, the inner side surface of the transmission box is rotatably connected to a transmission shaft 1, the inner side surface of the transmission shaft 1 is rotatably connected to a transmission shaft 2 fixedly connected to the second side surface of the connecting rod, the sides of the transmission shaft 1 and the transmission shaft 2 are both fixedly sleeved with bevel gears, and the two bevel gears are meshed for transmission;

[0027] Two limit seats, the side surfaces of which are slidably connected to the inner side surfaces of the sliding grooves, and the side surfaces of the limit seats are slidably connected to the inner side surfaces of the shells, the side surface of the connecting rod and the side surface of the pad rod are rotatably connected to the adjacent limit seats, and the two side surfaces of the limit seats at the bottom are fixedly connected to sliding blocks slidably connected to the inner side surfaces of the shells, and the bottom surfaces of the sliding blocks are fixedly connected to two return springs 2 fixedly connected to the inner bottom surface of the shells;

[0028] The power motor is fixed on the bottom surface of the shell and is located at the bottom of the transmission box. The output end of the power motor is transmission-connected to a rectangular rod rotatably connected to the top surface of the shell. The rectangular rod passes through the inside of two limit seats, and the side surface of the rectangular rod is slidingly connected to an inner side surface of the transmission shaft.

[0029] Preferably, the winding module further comprises a cover plate, the side surface of the cover plate contacts the side surface of the shell, and the side surface of the cover plate contacts the side surface of the rotating rod, the side surface of the cover plate is fixedly connected with a plug-in frame slidably plugged with the inner side surface of the shell, the side surface of the cover plate is fixedly connected with a pad corresponding to the second connecting rod, the side surface of the pad plate is rotatably connected with a plurality of round balls, the ends of the first connecting rod, the second connecting rod and the second pad away from the limit seat are all in contact with the side surfaces of the adjacent plurality of round balls, and the bottom of the side surface of the cover plate is rotatably connected with two screw-on rods;

[0030] The bottom of the inner side surface of the shell is fixedly connected with two screwing rings which are screwed together with the side surfaces of the adjacent screwing rods.

[0031] Preferably, the limiting mechanism comprises:

[0032] A U-shaped seat, the top surface of which is fixedly connected to the inner top surface of the shell;

[0033] Two connecting grooves are respectively provided on two bottom ends of the U-shaped seat;

[0034] Two sliding rods 1 are respectively slidably connected inside the two connecting grooves;

[0035] Two sliding rods 2 are respectively slidably connected inside the two connection grooves, and the side surface of the sliding rod 1 is slidably connected to the inner side surface of the adjacent sliding rod 2;

[0036] A limiting rod 1 is rotatably connected between the two sliding rods 1;

[0037] The limiting rod 2 is rotatably connected between the two sliding rods 2, and the limiting rod 2 is located at the bottom of the limiting rod 1, and the bottom of the side surface of the limiting rod 2 is in contact with the top of the side surface of the conveying shaft;

[0038] The top ends of the two return springs are respectively fixed on the inner top surfaces of the two connecting grooves, and the top surface of the sliding rod is fixedly connected to the bottom end of the adjacent return spring.

[0039] Furthermore, the cutting mechanism comprises:

[0040] Abutment rod;

[0041] A round rod, rotatably arranged on the inner side of the shell;

[0042] Two support rods are rotatably arranged at the two ends of the abutment rod, and the side surfaces of the support rods are fixedly connected to the two side surfaces of the adjacent sliding rods;

[0043] A plurality of cutting grooves are equidistantly arranged on the annular side surface of the abutment rod;

[0044] A sliding ring, slidably connected to the side surface of the round rod;

[0045] The cutting blade is fixed on the annular side surface of the sliding ring, and the side surface of the cutting blade contacts the inner side surface of the adjacent cutting groove.

[0046] Preferably, the adjustment mechanism comprises:

[0047] Connecting tube;

[0048] Two fixed frames, the top surfaces of which are fixedly connected to the inner top surface of the shell, and the connecting tube is located between the two fixed frames, and the inner top surface of the fixed frame is fixedly connected with a conductive rod;

[0049] Two sliding seats are respectively slidably connected inside the two fixed frames, the top surface of the sliding seat is embedded with a conductive block, and both ends of the connecting tube are rotatably connected to the side surfaces of the adjacent sliding seats;

[0050] The support plate is located at the bottom of the connecting tube, and the side surface of the support plate is fixedly connected to the inner side surface of the shell.

[0051] Compared with the prior art, the present invention has the following beneficial effects:

[0052] By using monochrome thermal paper to make labels and using them together with carbon ribbons of different colors from the thermal coating, where the width of the carbon ribbon is smaller than the width of the monochrome thermal paper, and using monochrome color thermal synthetic paper to make labels, costs can be effectively controlled and no special coating equipment is required. Monochrome carbon ribbons are used for different color areas, and the process is relatively simple. The lateral thermal coating and the carbon ribbon coating are heated at the same time, avoiding segmented waste, saving the use of carbon ribbons, saving costs, and increasing printing speed. When using monochrome carbon ribbons and monochrome thermal label paper, only the monochrome carbon ribbon is recycled and rewound during rewinding, and there is no need to rewind two carbon ribbons of different colors at the same time, avoiding the situation where different color carbon ribbons may have inconsistent rewinding lengths due to different thicknesses, which is beneficial to improving the stability of the printing effect.

[0053] By contacting the side of the cutting piece with the inner side of the adjacent cutting groove, when the carbon ribbon width is greater than the required width, that is, when the existing carbon ribbon width is wider, the cutting piece can be adjusted to the corresponding cutting groove position, and then the carbon ribbon is passed through between the abutment rod and the sliding ring, and the carbon ribbon is cut by the cutting piece to cut the carbon ribbon into two parts. The part with appropriate carbon ribbon width is passed into the printer for printing, and the part with inappropriate carbon ribbon width bypasses the top of the abutment rod and is then rolled on the second connecting rod, and the excess carbon ribbon is recycled for standby use. In this way, the carbon ribbon can be cut into a suitable width as needed to adjust the color development area of ​​the carbon ribbon on the thermal paper as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 It is a schematic flow chart of the method of the present invention;

[0055] Figure 2 It is a schematic diagram of the structure of the printer and the winding module in the present invention;

[0056] Figure 3 It is a schematic diagram of the top view of the winding module in the present invention;

[0057] Figure 4 It is a schematic diagram of the internal structure of the machine body in the present invention;

[0058] Figure 5 It is a schematic diagram of the structure of the winding module in the present invention;

[0059] Figure 6 It is a schematic diagram of the front view structure inside the shell of the present invention;

[0060] Figure 7 It is a schematic diagram of the rear view structure of the interior of the housing in the present invention;

[0061] Figure 8 It is a schematic diagram of the internal structure of the transmission box in the present invention;

[0062] Fig. 9 It is a schematic diagram of the structure of the limiting mechanism in the present invention;

[0063] Fig.10 It is a schematic diagram of the internal structure of the U-shaped seat in the present invention;

[0064] Fig.11 It is a schematic diagram of the cutting mechanism structure in the present invention;

[0065] Fig.12 It is a schematic diagram of the internal structure of the regulating mechanism in the present invention.

[0066] In the figure: 100, printer; 110, machine body; 120, top cover; 130, conveying rod; 200, winding module; 210, shell; 211, opening slot 1; 212, opening slot 2; 213, sliding slot; 214, connecting rod 1; 215, connecting rod 2; 216, pad rod 1; 217, pad rod 2; 218, conveying shaft; 2181, rotating rod; 219, screw ring; 220, cover plate; 221, screw rod; 222, pad plate; 223, ball; 224, plug-in frame; 230, limiting mechanism; 231, U-shaped seat; 232, connecting slot; 233, limiting rod 1; 234, limiting rod 2; 235, sliding rod 1; 236, sliding Moving rod 2; 237, reset spring 1; 240, cutting mechanism; 241, abutting rod; 242, round rod; 243, supporting rod; 244, cutting groove; 245, sliding ring; 246, cutting blade; 250, adjusting mechanism; 251, connecting tube; 252, supporting plate; 253, fixing frame; 2531, conductive rod; 254, sliding seat; 2541, conductive block; 260, transmission box; 261, transmission shaft 1; 262, transmission shaft 2; 263, bevel gear; 270, limiting seat; 271, sliding block; 272, reset spring 2; 280, power motor; 281, rectangular rod; 290, driving motor; 291, driving shaft; 300, base. DETAILED DESCRIPTION

[0067] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0068] See also Figure 1 In an embodiment of the present invention, a method for realizing two-color label printing includes the steps of printing preparation - installation of thermal paper and carbon ribbon - label printing - carbon ribbon recycling - label separation, and the specific steps are as follows:

[0069] Step (1) Printing preparation: Use monochrome thermal paper to make labels, and use them with a carbon ribbon of a color different from that of the thermal coating, wherein the width of the carbon ribbon is smaller than that of the monochrome thermal paper;

[0070] Step (2) Installation of thermal paper and carbon ribbon: Place the monochrome thermal paper into the printer 100, and place the carbon ribbon into the winding module 200, pass the carbon ribbon through the printer 100, and pass the monochrome thermal paper out of the printer 100, so that the carbon ribbon covers the monochrome thermal paper;

[0071] Step (3) label printing: The thermal paper is printed by the printer 100. During the printing process, the thermal coating of the thermal paper is heated and begins to develop color. Since the carbon ribbon is in contact with the thermal paper, the toner on the carbon ribbon is heated and covers the thermal coating, covering the original color of the thermal coating, thereby displaying the color of the carbon ribbon. The area of ​​the thermal paper not covered by the carbon ribbon displays the color of the thermal coating, while the area of ​​the thermal paper covered by the carbon ribbon displays the color of the toner, thereby achieving two-color printing.

[0072] Step (4) Carbon ribbon recycling: The printed portion of the carbon ribbon is reeled up and recycled, so that the carbon ribbon and thermal paper are separated in time after printing is completed, and the label printing effect can be observed immediately;

[0073] Step (5) Label separation: Use a cutting structure to cut the printed thermal paper into individual labels.

[0074] Specifically, a label is made of monochrome thermal paper and used in combination with a carbon ribbon of a different color from the thermal coating, wherein the width of the carbon ribbon is smaller than the width of the monochrome thermal paper. During printing, the toner on the carbon ribbon is heated and covers the thermal coating, thereby covering the original color of the thermal coating and displaying the color of the carbon ribbon, while the area on the thermal paper not covered by the carbon ribbon displays the color of the thermal coating. This allows two-color printing to be achieved. Monochrome color thermal synthetic paper is used to make labels, and a monochrome carbon ribbon is used for different color areas. This can effectively control costs and does not require special coating equipment. The process is relatively simple. During printing, the lateral thermal coating and the carbon ribbon coating are heated at the same time, thereby avoiding segmented waste, saving the amount of carbon ribbon used, and increasing the printing speed. When a monochrome carbon ribbon and monochrome thermal label paper are used, the monochrome carbon ribbon is recycled and rewound during rewinding, and there is no need to rewind two carbon ribbons of different colors at the same time. This avoids the situation where different color carbon ribbons may have inconsistent rewinding lengths due to different thicknesses, which is beneficial to improving the stability of the printing effect. Example

[0075] like Figure 1 As shown, in this embodiment, when the carbon ribbon is covered on the thermal paper in step (2), the carbon ribbon is covered on one side or the middle of the monochrome thermal paper according to the printing requirements, so that the color on the carbon ribbon is displayed on one side or the middle of the thermal paper. When the carbon ribbon is loaded into the winding module 200 in step (2), if the carbon ribbon width is greater than the required width, the winding module 200 is used to cut the carbon ribbon, and then the carbon ribbon of appropriate width is passed into the printer 100 for printing, and the unused carbon ribbon is collected and reserved.

[0076] In specific implementation, before printing, the carbon ribbon can be covered on one side or the middle of the thermal paper, so that a different color is displayed on one side or the middle of the thermal paper, which is more flexible to use. When the width of the used carbon ribbon is greater than the design requirement, the carbon ribbon can be cut and the part with appropriate width can be used for different color printing, and the cut carbon ribbon that does not meet the requirements can be rewound for standby use. In this way, if the width of the used carbon ribbon is less than the design requirement next time, the cut spare carbon ribbon can be used in combination with the new used carbon ribbon. Since the two carbon ribbons have the same color and thickness, the winding module 200 can be used to simultaneously recycle the two sections of carbon ribbon, and the new carbon ribbon and the spare carbon ribbon can be respectively set on both sides of the thermal paper as needed. In this way, the color of the carbon ribbon can be displayed on both sides of the thermal paper, and the color of the thermal layer can be limited in the middle of the thermal paper. At the same time, multiple cut spare carbon ribbons can be selected for use in combination and covered on the thermal paper in sequence according to usage needs.

[0077] like Figure 2-4 As shown, in this embodiment, a two-color label printing device includes a printer 100 and a matching winding module 200, and the printer 100 includes: a body 110, which is used to load a roll of thermal paper, and a conveying roller is arranged on the side of the inner top of the body 110 away from the winding module 200; a top cover 120, which is rotatably connected to the body 110 on the side close to the winding module 200 through a hinge, and a print head is arranged on the inner side of the top cover 120 corresponding to the conveying roller, and the thermal paper and the carbon ribbon can pass through between the conveying roller and the print head, and the thermal paper and the carbon ribbon are conveyed by the rotation of the conveying roller, and the thermal paper and the carbon ribbon are heated by the print head, so that the thermal paper is heated to display the corresponding printed content, and the toner on the carbon ribbon is heated to cover the thermal paper.

[0078] During specific implementation, the top cover 120 can be opened to separate the print head from the conveying roller, and the thermal paper roll can be placed in the paper bin in the body 110. The thermal paper then passes over the top of the conveying roller, and the carbon ribbon is passed into the body 110 from the opening of the body 110 near the winding module 200, and the carbon ribbon covers the thermal paper, and passes over the top of the print head. A conveying motor can be arranged in the body 110, and the output end of the conveying motor is connected to the conveying roller by transmission. In this way, when the top cover 120 is closed on the body 110 and the conveying roller sticks the thermal paper and the carbon ribbon on the print head, the conveying motor can drive the conveying roller to rotate, so that the conveying roller conveys the thermal paper and the carbon ribbon, and the thermal paper and the carbon ribbon gradually pass through the print head. The print head heats the thermal paper and the carbon ribbon, so that the label information is displayed on the thermal paper, and the toner on the carbon ribbon is heated and covers the thermal paper to display different colors, so as to perform two-color printing.

[0079] like Figure 2-9As shown, in this embodiment, the printer 100 further includes two conveying rods 130, which are rotatably connected to the inside of the body 110 and the inside of the top cover 120, respectively, and the conveying rods 130 are located on one side of the body 110 close to the winding module 200; a base 300 is provided at the bottom of the printer 100;

[0080] The winding module 200 includes: a shell 210, the side of the shell 210 contacts the side of the machine body 110, and the bottom of the side of the shell 210 is slidably plugged with the inner side of the base 300, the side of the shell 210 is provided with an opening groove 1 211 corresponding to the conveying rod 130, the side of the shell 210 is provided with an opening groove 212 at the top of the opening groove 1 211, the inner side of the shell 210 is provided with a sliding groove 213, the inside of the shell 210 is provided with a connecting rod 1 214 and a connecting rod 215 corresponding to the sliding groove 213, a cushion rod 217 is provided between the connecting rod 1 214 and the connecting rod 215, the top and bottom of the inner side of the shell 210 are rotatably connected with a cushion rod 1 216 corresponding to the sliding groove 213, the inner side of the shell 210 is rotatably connected with a conveying shaft 218 on the side close to the opening groove 1 211, and the end of the conveying shaft 218 close to the opening side of the shell 210 is rotatably connected with a rotating rod 2181;

[0081] The limiting mechanism 230 is located inside the shell 210 and corresponds to the top of the conveying shaft 218, and the limiting mechanism 230 is used to convey the carbon ribbon; the cutting mechanism 240 is located inside the shell 210 and corresponds to the opening groove 1 211, and the limiting mechanism 230 is located between the cutting mechanism 240 and the connecting rod 215, and the cutting mechanism 240 is used to cut the carbon ribbon; the adjusting mechanism 250 is located between the limiting mechanism 230 and the connecting rod 215; the driving motor 290 is fixedly connected to the inner side surface of the shell 210 and corresponds to the conveying shaft 218, and the output end of the driving motor 290 is transmission-connected to a driving shaft 291 fixedly connected to the end of the conveying shaft 218, and the side surface of the driving shaft 291 is rotationally connected to the inner side surface of the shell 210.

[0082] During specific implementation, the distance between the connecting rod 1 214, the pad rod 217 and the connecting rod 215 can be pulled apart, the carbon ribbon can be rolled onto the connecting rod 1 214, and then the carbon ribbon can be passed through between the limiting mechanism 230 and the conveying shaft 218, and after the carbon ribbon is passed through between the cutting mechanism 240, the carbon ribbon can be passed through the opening slot 1 211 out of the shell 210, and then the carbon ribbon can be passed into the body 110, the driving motor 290 can drive the driving shaft 291 to rotate, and the driving shaft 291 can drive the conveying shaft 218 to rotate, so as to convey the carbon ribbon. After printing is completed, the used carbon ribbon can be passed around the top of the top cover 120, and then passed into the shell 210 from the opening slot 212, and after the carbon ribbon passes through the limiting mechanism 230 and the adjusting mechanism 250, the carbon ribbon can be rolled up on the connecting rod 21 5, the machine body 110 and the shell 210 can be inserted into the base 300, and the printer 100 and the winding module 200 can be supported and limited by the base 300. A winding drum can be set on the second connecting rod 215, a locking rod is set inside the winding drum, and a locking groove is opened on the connecting rod 1 214 and the second connecting rod 215. The winding drum can be inserted into the second connecting rod 215, so that the locking rod is inserted into the locking groove. By setting a coating layer on the winding drum, the end of the used carbon ribbon can be adhered to the winding drum, and then the winding drum is driven to rotate by the second connecting rod 215, so as to wind up the carbon ribbon. The unused carbon ribbon roll on the connecting rod 1 214 and the used carbon ribbon roll on the connecting rod 215 can be separated by the second pad rod 217, and the used carbon ribbon roll can be against the top pad rod 1 216. Example

[0083] Based on the first embodiment, Figure 7-8As shown, in the present embodiment, the winding module 200 further includes: a transmission box 260, the side of which is slidably connected to the inner side of the sliding groove 213, and the side of the transmission box 260 is slidably connected to the inner side of the shell 210, the side of the transmission box 260 is rotatably connected to the end of the second connecting rod 215, the inner side of the transmission box 260 is rotatably connected to a transmission shaft 1 261, the inner side of the transmission shaft 1 261 is rotatably connected to a transmission shaft 2 262 fixedly connected to the side of the second connecting rod 215, the sides of the transmission shaft 1 261 and the transmission shaft 2 262 are both fixedly sleeved with bevel gears 263, and the two bevel gears 263 are meshed for transmission; two limit seats 270, the sides of which are both slidably connected to the inner side of the sliding groove 213, and the side of the limit seat 270 is connected to the shell The inner side surface of the shell 210 is slidingly connected, the side surface of the connecting rod 1 214 and the side surface of the pad rod 217 are rotationally connected to the adjacent limit seat 270, and the two side surfaces of the limit seat 270 at the bottom are fixedly connected with a sliding block 271 slidingly connected to the inner side surface of the shell 210, and the bottom surface of the sliding block 271 is fixedly connected with two return springs 272 fixedly connected to the inner bottom surface of the shell 210; the power motor 280 is fixed on the inner bottom surface of the shell 210 and is located at the bottom of the transmission box 260, and the output end of the power motor 280 is transmission-connected with a rectangular rod 281 rotationally connected to the inner top surface of the shell 210, the rectangular rod 281 passes through the inside of the two limit seats 270, and the side surface of the rectangular rod 281 is slidingly connected to the inner side surface of the transmission shaft 1 261.

[0084] During specific implementation, under the action of the second reset spring 272, the bottom limit seat 270 can be moved upward, so that the connecting rod 1 214 is against the second cushion rod 217, and the second cushion rod 217 can be against the second connecting rod 215, so that the second connecting rod 215 is located at the top of the inner side of the shell 210, and the connecting rod 1 214 can be pulled downward to pull the connecting rod 1 214, the second cushion rod 217, and the second connecting rod 215 apart, so that the carbon ribbon is rolled onto the connecting rod 1 214, and the winding drum is rolled onto the second connecting rod 215, and the transmission shaft 1 261 can move up and down along the rectangular rod 281, and the power motor 280 can drive the rectangular rod 281 to rotate. Since the cross-section of the rectangular rod 281 is rectangular, the rectangular rod 281 can drive the transmission shaft 1 261 to rotate. The transmission shaft 1 261 can drive the transmission shaft 262 to rotate through the bevel gear 263, thereby rotating the connecting rod 215, and driving the winding drum to rotate the connecting rod 215, thereby actively winding the carbon ribbon. When the carbon ribbon wound on the connecting rod 215 gradually increases and the carbon ribbon on the connecting rod 1 214 gradually decreases, the connecting rod 215 will gradually move downward, thereby moving the transmission box 260 downward, and the carbon ribbon roll on the connecting rod 215 can squeeze the unused carbon ribbon roll on the connecting rod 1 214 through the pad rod 217, thereby moving the connecting rod 1 214 downward and contracting the reset spring 272, so that the unused carbon ribbon roll can be transported and the used carbon ribbon roll can be wound up at the same time inside the shell 210.

[0085] like Figure 8 As shown, in the present embodiment, the winding module 200 further includes a cover plate 220, the side of the cover plate 220 contacts the side of the shell 210, and the side of the cover plate 220 contacts the side of the rotating rod 2181, the side of the cover plate 220 is fixedly connected with a plug-in frame 224 which is slidably plugged into the inner side of the shell 210, the side of the cover plate 220 is fixedly connected with a pad 222 corresponding to the connecting rod 215, the side of the pad 222 is rotatably connected with a plurality of round balls 223, the ends of the connecting rod 1 214, the connecting rod 215 and the pad rod 217 away from the limit seat 270 are all in contact with the sides of adjacent plurality of round balls 223, the bottom of the side of the cover plate 220 is rotatably connected with two screw-on rods 221; the bottom of the inner side of the shell 210 is fixedly connected with two screw-on rings 219 which are screw-connected with the sides of adjacent screw-on rods 221.

[0086] During specific implementation, the screw-on rod 221 can be screwed into the corresponding screw-on ring 219, and the cover plate 220 is fixed to the side of the shell 210 by screwing the screw-on rod 221 and the screw-on ring 219, so that the plug-in frame 224 is inserted into the shell 210, and the side opening of the shell 210 is blocked by the cover plate 220. At this time, the ball 223 on the pad 222 can be against the ends of the connecting rod 1 214, the pad rod 217, and the connecting rod 215, and the ends of the connecting rod 1 214, the pad rod 217, and the connecting rod 215 are limited to avoid skewing, and the contact area between the connecting rod 1 214, the pad rod 217, and the connecting rod 215 and the adjacent ball 223 is small, and the ball 223 can rotate in the pad 222. In this way, the connecting rod 1 214, the pad rod 217, and the connecting rod 215 can rotate freely relative to the pad plate 222, and the cover plate 220 can resist the rotating rod 2181, and the rotating rod 2181 is rotatably set on the conveying shaft 218, so that the cover plate 220 can support the conveying shaft 218 through the rotating rod 2181, and the conveying shaft 218 can rotate relative to the cover plate 220, and the screw-on rod 221 can be rotated to disengage the screw-on rod 221 from the inside of the screw-on ring 219. At this time, the cover plate 220 can be moved away from the side of the shell 210, thereby opening the inside of the shell 210, and then the carbon ribbon roll can be loaded into the shell 210. When the shell 210 is inserted into the base 300, the cover plate 220 can be inserted into the base 300.

[0087] like Figure 9-11As shown, in this embodiment, the limiting mechanism 230 includes: a U-shaped seat 231, the top surface of which is fixedly connected to the top surface inside the shell 210; two connecting grooves 232, which are respectively opened on the two bottom ends of the U-shaped seat 231; two sliding rods 235, which are respectively slidably connected inside the two connecting grooves 232; two sliding rods 236, which are respectively slidably connected inside the two connecting grooves 232, and the side surface of the sliding rod 235 is slidably connected to the inner side surface of the adjacent sliding rod 236; a limiting rod 233, which is rotatably connected between the two sliding rods 235; a limiting rod 234, which is rotatably connected between the two sliding rods 236, and the limiting rod 234 is located at the bottom of the limiting rod 233, and the bottom of the side surface of the limiting rod 234 is in contact with the top of the side surface of the conveying shaft 218; two reset springs 237, the top ends of which are respectively fixed on the inner top surfaces of the two connecting grooves 232, and the top surface of the sliding rod 235 is fixedly connected to the bottom end of the adjacent reset spring 237. The cutting mechanism 240 includes: an abutment rod 241; a round rod 242, which is rotatably set on the inner side of the shell 210; two support rods 243, which are rotatably set at both ends of the abutment rod 241, and the side of the support rod 243 is fixedly connected to the side of the adjacent sliding rod 236; a plurality of cutting grooves 244, which are equidistantly arranged on the annular side of the abutment rod 241; a sliding ring 245, which is slidably connected to the side of the round rod 242; a cutting blade 246, which is fixed on the annular side of the sliding ring 245, and the side of the cutting blade 246 is in contact with the inner side of the adjacent cutting groove 244.

[0088] In a specific implementation, the sliding rod 1 235 and the sliding rod 236 can slide in the connecting groove 232, and the sliding rod 1 235 can slide in the sliding rod 236. After the unused carbon ribbon is rolled onto the connecting rod 1 214, the limiting rod 234 can be moved upward, the limiting rod 234 can drive the sliding rod 236 to move upward, and the sliding rod 236 can drive the support rod 243 to move upward, so that the abutting rod 241 moves upward, the distance between the limiting rod 234 and the conveying shaft 218 is increased, and the abutting rod 241 is increased. 41 and the sliding ring 245, then the sliding ring 245 can be moved along the round rod 242, and the position of the sliding ring 245 can be adjusted as needed to make the cutting blade 246 correspond to the corresponding cutting groove 244, and then the unused carbon ribbon can be passed between the limiting rod 234 and the conveying shaft 218, and between the abutting rod 241 and the sliding ring 245, and the limiting rod 234 can be loosened. At this time, under the action of the reset spring 1 237, the sliding rod 1 235 can be moved downward, and the limiting rod 234 can be moved downward by the limiting rod 1 233. The carbon ribbon is moved so that the limiting rod 234 abuts the carbon ribbon against the conveying shaft 218, and the contact rod 241 abuts the carbon ribbon against the sliding ring 245, and the carbon ribbon is cut by the cutting blade 246, and the carbon ribbon with a suitable width after cutting passes through the opening groove 1 211, and then passes into the body 110 for printing, while the carbon ribbon with an inappropriate width cut out can bypass the top of the contact rod 241, and then pass between the limiting rod 1 233 and the limiting rod 234, and then the carbon ribbon is wound on the corresponding winding drum on the connecting rod 215, and when printing, the carbon ribbon is wound on the connecting rod 215. After the machine 100 has finished printing the thermal paper and the carbon ribbon, the used carbon ribbon can be passed around the top of the top cover 120, and the carbon ribbon can be passed through the second opening slot 212 into the housing 210, and then the used carbon ribbon can be passed between the first limiting rod 233 and the second limiting rod 234, and finally the carbon ribbon can be rolled onto the corresponding winding drum on the second connecting rod 215. A paper roll of a certain thickness can be padded on a winding drum on the second connecting rod 215, so that the two carbon ribbon rolls on the second connecting rod 215 maintain the same thickness, thereby synchronously winding the two carbon ribbon rolls;

[0089] When the driving motor 290 rotates the conveying shaft 218, due to the action of the reset spring 1 237, the limit rod 1 233 sticks the carbon ribbon to the limit rod 2 234, and the limit rod 2 234 sticks the carbon ribbon to the conveying shaft 218. In this way, when the conveying shaft 218 rotates, the limit rod 1 233 and the limit rod 2 234 can rotate, so that the limit rod 1 233 and the limit rod 2 234 can convey the used carbon ribbon. In this way, the carbon ribbon can be quickly separated from the thermal paper, which is convenient for checking the printed content and allows the carbon ribbon to pass through the print head smoothly.

[0090] like Fig.12As shown, in this embodiment, the adjustment mechanism 250 includes: a connecting tube 251; two fixed frames 253, the top surfaces of which are fixedly connected to the inner top surface of the shell 210, and the connecting tube 251 is located between the two fixed frames 253, and the inner top surface of the fixed frame 253 is fixedly connected with a conductive rod 2531; two sliding seats 254, which are respectively slidably connected to the inside of the two fixed frames 253, and the top surface of the sliding seat 254 is embedded with a conductive block 2541, and both ends of the connecting tube 251 are rotatably connected to the side of the adjacent sliding seat 254; a support plate 252, which is located at the bottom of the connecting tube 251, and the side of the support plate 252 is fixedly connected to the inner side of the shell 210.

[0091] In a specific implementation, after the carbon ribbon passes through the limit rod 1 233 and the limit rod 234, it can pass between the connecting tube 251 and the support plate 252, and then be wound on the winding tube on the connecting rod 215, wherein the connecting tube 251 is a hollow structure and can be configured with a corresponding controller. The controller can control the start and stop of the power motor 280, and electrically connect the conductive rod 2531 and the conductive block 2541 to the controller. The controller can receive a signal of whether the conductive rod 2531 and the conductive block 2541 are conductive. When the power motor 280 is connected to the power supply and the connecting rod 215 rewinds the carbon ribbon, the carbon ribbon between the limit rod 1 233 and the connecting rod 215 is tightened, so that the connecting tube 251 moves upward, and the connecting tube 251 can drive the sliding seat 254 to move upward, so that the conductive block 2541 is in contact with and conductive with the adjacent conductive rod 2531, and the controller A conduction signal can be received, and at this time, the power motor 280 can be stopped by the controller, so that the power motor 280 no longer drives the rectangular rod 281 to rotate, so that the connecting rod 215 no longer reels the carbon ribbon, but continues to print labels, so that the limit rod 1 233 and the limit rod 234 convey the carbon ribbon, so that when the carbon ribbon between the limit rod 1 233 and the connecting rod 215 is loose, under the action of gravity, the connecting tube 251 can move downward to press the carbon ribbon against the support plate 252, and the conductive rod 2531 will be disconnected from the adjacent conductive block 2541. After receiving the disconnection signal, the controller can control the power motor 280 to start, so that the connecting rod 215 continues to rotate and reel in the carbon ribbon, so that the carbon ribbon follows the thermal paper to move at a uniform speed, and the excessive rotation of the connecting rod 215 to reel in the carbon ribbon can be avoided during the printing process.

[0092] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0093] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A two-color label printing device, It is characterized in that It comprises a printer (100) and a matching winding module (200); The printer (100) comprises: A machine body (110) is used to load a roll of thermal paper, and a conveying roller is provided on a side of the inner top of the machine body (110) away from the winding module (200); The top cover (120) is rotatably connected to the machine body (110) at a side close to the winding module (200) via a hinge, and a print head is provided on the inner side of the top cover (120) corresponding to the conveying roller, and the thermal paper and the carbon ribbon can pass between the conveying roller and the print head. The thermal paper and the carbon ribbon are conveyed by the rotation of the conveying roller, and the thermal paper and the carbon ribbon are heated by the print head, so that the thermal paper is heated to display corresponding printed content, and the carbon powder on the carbon ribbon is heated to cover the thermal paper; The printer (100) further comprises two conveying rods (130), the two conveying rods (130) being rotatably connected inside the machine body (110) and inside the top cover (120) respectively, and the conveying rods (130) are located on a side of the machine body (110) close to the winding module (200); A base (300) is provided at the bottom of the printer (100); The winding module (200) comprises: A shell (210), wherein a side surface of the shell (210) contacts a side surface of the machine body (110), and a bottom of the side surface of the shell (210) is slidably plugged into an inner side surface of the base (300), an opening groove (211) is provided on the side surface of the shell (210) corresponding to the conveying rod (130), an opening groove (212) is provided on the side surface of the shell (210) at the top of the opening groove (211), a sliding groove (213) is provided on the inner side surface of the shell (210), and a corresponding sliding groove (213) is provided inside the shell (210). There are connecting rod 1 (214) and connecting rod 2 (215), a cushion rod 2 (217) is arranged between the connecting rod 1 (214) and the connecting rod 2 (215), the top and bottom of the inner side surface of the shell (210) corresponding to the sliding groove (213) are both rotatably connected to the cushion rod 1 (216), the inner side surface of the shell (210) close to the opening groove 1 (211) is rotatably connected to the conveying shaft (218), and the end of the conveying shaft (218) close to the opening side of the shell (210) is rotatably connected to the rotating rod (2181); A limiting mechanism (230) is located inside the housing (210) and corresponds to the top of the conveying shaft (218), and the limiting mechanism (230) is used to convey the carbon ribbon; The cutting mechanism (240) is located inside the housing (210) and corresponds to the first opening groove (211); the limiting mechanism (230) is located between the cutting mechanism (240) and the second connecting rod (215); the cutting mechanism (240) is used to cut the carbon ribbon; An adjusting mechanism (250) is located between the limiting mechanism (230) and the second connecting rod (215); A drive motor (290) is fixedly connected to the inner side surface of the housing (210) and corresponds to the conveying shaft (218); the output end of the drive motor (290) is drivingly connected to a drive shaft (291) fixedly connected to the end of the conveying shaft (218); and the side surface of the drive shaft (291) is rotatably connected to the inner side surface of the housing (210); The adjustment mechanism (250) comprises: Connecting tube (251); Two fixed frames (253), the top surfaces of which are fixedly connected to the inner top surface of the housing (210), and the connecting tube (251) is located between the two fixed frames (253), and the inner top surface of the fixed frames (253) is fixedly connected to a conductive rod (2531); Two sliding seats (254) are respectively slidably connected inside the two fixed frames (253); a conductive block (2541) is embedded in the top surface of the sliding seat (254); and both ends of the connecting tube (251) are rotatably connected to the side surfaces of adjacent sliding seats (254); A support plate (252) is located at the bottom of the connecting tube (251), and a side surface of the support plate (252) is fixedly connected to an inner side surface of the housing (210); The two-color label printing device can realize two-color label printing, including the steps of printing preparation - installation of thermal paper and carbon ribbon - label printing - carbon ribbon recycling - label separation. The specific steps are as follows: Step (1) Printing preparation: Use monochrome thermal paper to make labels, and use them with a carbon ribbon of a color different from that of the thermal coating, wherein the width of the carbon ribbon is smaller than that of the monochrome thermal paper; Step (2) Installation of thermal paper and carbon ribbon: placing the monochrome thermal paper into the printer (100), placing the carbon ribbon into the winding module (200), passing the carbon ribbon through the printer (100), and passing the monochrome thermal paper out of the printer (100), so that the carbon ribbon covers the monochrome thermal paper; Step (3) label printing: the thermal paper is printed by the printer (100). During the printing process, the thermal coating of the thermal paper is heated and begins to develop color. Since the carbon ribbon is in contact with the thermal paper, the toner on the carbon ribbon is heated and covers the thermal coating, covering the original color of the thermal coating, thereby displaying the color of the carbon ribbon. The area of ​​the thermal paper not covered by the carbon ribbon displays the color of the thermal coating, while the area of ​​the thermal paper covered by the carbon ribbon displays the color of the toner, thereby achieving a two-color printing effect. Step (4) Carbon ribbon recycling: The printed portion of the carbon ribbon is reeled up and recycled, so that the carbon ribbon and thermal paper are separated in time after printing is completed, and the label printing effect can be observed immediately; Step (5) Label separation: Use a cutting structure to cut the printed thermal paper into individual labels.

2. The two-color label printing device according to claim 1, It is characterized in that When the carbon ribbon is covered on the thermal paper in step (2), the carbon ribbon is covered on one side or in the middle of the monochrome thermal paper according to printing needs, so that the color on the carbon ribbon is displayed on one side or in the middle of the thermal paper.

3. The two-color label printing device according to claim 1, It is characterized in that When the carbon ribbon is loaded into the winding module (200) in step (2), if the carbon ribbon width is greater than the required width, the carbon ribbon is cut using the winding module (200), and then the carbon ribbon of appropriate width is passed into the printer (100) for printing, and the unused carbon ribbon is collected for future use.

4. The two-color label printing device according to claim 1, It is characterized in that The winding module (200) further comprises: A transmission box (260), the side of which is slidably connected to the inner side of the sliding groove (213), and the side of the transmission box (260) is slidably connected to the inner side of the housing (210), the side of the transmission box (260) is rotatably connected to the end of the second connecting rod (215), the inner side of the transmission box (260) is rotatably connected to a transmission shaft 1 (261), the inner side of the transmission shaft 1 (261) is rotatably connected to a transmission shaft 2 (262) fixedly connected to the side of the second connecting rod (215), the sides of the transmission shaft 1 (261) and the transmission shaft 2 (262) are both fixedly sleeved with bevel gears (263), and the two bevel gears (263) are meshed for transmission; The two limit seats (270) have sides that are slidably connected to the inner side of the sliding groove (213), and the side of the limit seat (270) is slidably connected to the inner side of the shell (210), the side of the connecting rod 1 (214) and the side of the cushion rod 2 (217) are rotatably connected to the adjacent limit seat (270), and the two side surfaces of the limit seat (270) at the bottom are fixedly connected to a sliding block (271) that is slidably connected to the inner side of the shell (210), and the bottom surface of the sliding block (271) is fixedly connected to two return springs 2 (272) that are fixedly connected to the inner bottom surface of the shell (210); The power motor (280) is fixed on the inner bottom surface of the housing (210) and is located at the bottom of the transmission box (260). The output end of the power motor (280) is drivingly connected to a rectangular rod (281) that is rotatably connected to the inner top surface of the housing (210). The rectangular rod (281) passes through the inside of the two limit seats (270), and the side surface of the rectangular rod (281) is slidably connected to the inner side surface of the first transmission shaft (261).

5. The two-color label printing device according to claim 1, It is characterized in that The winding module (200) further comprises a cover plate (220), the side surface of the cover plate (220) contacts the side surface of the shell (210), and the side surface of the cover plate (220) contacts the side surface of the rotating rod (2181); the side surface of the cover plate (220) is fixedly connected to a plug-in frame (224) that is slidably plugged into the inner side surface of the shell (210); the side surface of the cover plate (220) is fixedly connected to a pad plate (222) corresponding to the second connecting rod (215); the side surface of the pad plate (222) is rotatably connected to a plurality of round balls (223); the ends of the first connecting rod (214), the second connecting rod (215) and the second pad rod (217) that are away from the limiting seat (270) are all in contact with the sides of the adjacent plurality of round balls (223); and the bottom of the side surface of the cover plate (220) is rotatably connected to two screw-on rods (221); Two screw-on rings (219) screw-on to the sides of adjacent screw-on rods (221) are fixedly connected to the bottom of the inner side surface of the housing (210).

6. The two-color label printing device according to claim 1, It is characterized in that The limiting mechanism (230) comprises: A U-shaped seat (231), the top surface of which is fixedly connected to the inner top surface of the shell (210); Two connecting grooves (232) are respectively provided on two bottom ends of the U-shaped seat (231); Two sliding rods 1 (235) are respectively slidably connected inside the two connecting grooves (232); The two sliding rods (236) are respectively slidably connected inside the two connecting grooves (232), and the side surface of the sliding rod (235) is slidably connected to the inner side surface of the adjacent sliding rod (236); A limiting rod (233) is rotatably connected between the two sliding rods (235); The second limiting rod (234) is rotatably connected between the two second sliding rods (236), and the second limiting rod (234) is located at the bottom of the first limiting rod (233), and the bottom of the side surface of the second limiting rod (234) contacts the top of the side surface of the conveying shaft (218); The top ends of the two return springs (237) are respectively fixed on the inner top surfaces of the two connection grooves (232), and the top surface of the sliding rod (235) is fixedly connected to the bottom end of the adjacent return spring (237).

7. The two-color label printing device according to claim 6, It is characterized in that The cutting mechanism (240) comprises: an abutment rod (241); A round rod (242) rotatably disposed on the inner side surface of the housing (210); Two support rods (243) are rotatably disposed at the two ends of the abutment rod (241), and the side surfaces of the support rods (243) are fixedly connected to the side surfaces of the adjacent second sliding rods (236); A plurality of cutting grooves (244) are equidistantly arranged on the annular side surface of the abutment rod (241); A sliding ring (245) slidably connected to a side surface of the round rod (242); The cutting blade (246) is fixed on the annular side surface of the sliding ring (245), and the side surface of the cutting blade (246) contacts the inner side surface of the adjacent cutting groove (244).

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