CN211493317U

CN211493317U - A heat-transfer seal printing device for test tube

Info

Publication number: CN211493317U
Application number: CN201922169955.0U
Authority: CN
Inventors: 李岩
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-09-15
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a thermal transfer printing device for test tubes, which comprises a belt feeding shaft, a flat-pressing thermal sensitive printing head, a rubber roller, a hot roller, a test tube, a belt collecting shaft and a plurality of belt guide rods; a consumable material strip coil is wound on the strip feeding shaft, and the consumable material strip is formed by overlapping and compounding a carbon strip and a medium strip; the material consumption belt is conveyed by the belt guide rod and penetrates through a joint between the thermal printing head and the rubber roller, then the carbon belt is separated from the medium belt, the separated medium belt is connected with the belt take-up shaft after passing through the belt guide rod, and the separated carbon belt is also connected with the belt take-up shaft after being conveyed by the belt guide rod and penetrating through the joint between the hot roller and the test tube. This device can easily realize printing the pattern on cylindrical outer walls such as test tubes through the mode of two-stage heat-transfer seal, makes the printing that flat-pressing formula thermal printhead is used for cylindrical outer wall become possible, adopts flat-pressing formula thermal printhead commonality strong, long service life, is difficult to the broken needle, prints cost low price.

Description

A heat-transfer seal printing device for test tube

Technical Field

The utility model particularly relates to a heat-transfer seal printing device for test tube belongs to and prints technical field.

Background

Printing text and graphic labels on the surface of cylindrical objects, such as test tubes, is a special requirement in actual production. To address this need, there are two main prior art solutions: one is an inkjet printing mode, wherein a piezoelectric inkjet printing head and UV curing ink are used for inkjet printing, but the UV curing ink is sensitive to light, can be solidified by visible light and has poor fluidity; in order to prevent the UV curable ink from clogging the print head during the idling of the apparatus, it is necessary to protect the print head with a protective liquid during the idling, and therefore this method requires a complicated structure and apparatus and brings about cumbersome maintenance and use procedures of the apparatus. The other is a heat transfer printing mode, because the outer surface of the test tube is a cambered surface, the hardness of the material is different, a special edge-pressing type thermal printing head is required to be used, a conventional flat-pressing type thermal printing head with longer service life cannot be directly adopted, and because the edge-pressing type thermal printing head has fewer application occasions and is rare in material supply manufacturers, the cost is high, and the ordering period is very long; and because of the special nature of the media surface (non-planar, different hardness, different flatness), it is inevitable that the print head, the ribbon of color (carbon), and the media in this manner are difficult to make uniform and intimate contact, resulting in poor print quality or frequent failures.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model discloses a heat-transfer seal printing device for test tube can directly adopt conventional concora crush formula thermal printhead to print out high-quality pattern on face of cylinder such as test tube.

The technical scheme of the utility model is that: a thermal transfer printing device for test tubes comprises a tape feeding shaft, a flat-pressing thermal sensitive printing head, a rubber roller, a hot roller, test tubes, a tape collecting shaft and a plurality of tape guide rods; the tape feeding shaft is provided with a consumable material tape roll, the consumable material tape roll is formed by winding a consumable material tape, and the consumable material tape is formed by overlapping and compounding a carbon tape and a medium tape; the material consumption belt is conveyed by the belt guide rod and penetrates through a joint between the thermal printing head and the rubber roller, then the carbon belt is separated from the medium belt, the separated medium belt is connected with the belt take-up shaft after passing through the belt guide rod, and the separated carbon belt is also connected with the belt take-up shaft after being conveyed by the belt guide rod and penetrating through the joint between the hot roller and the test tube.

Furthermore, the medium belt composing the consumable material belt roll is arranged on the outer layer, the carbon belt is arranged on the inner layer, and the transfer printing coating surface of the carbon belt is in contact with the inner side of the medium belt.

Further, the medium belt can be one of PET, paper, PP and PVC.

Preferably, the medium belt is made of PET.

Furthermore, the rubber roller is positioned corresponding to the thermal printing head, the consumable strip penetrates through a joint part between the thermal printing head and the rubber roller, the carbon strip forming the consumable strip is arranged on one side of the printing head, and the medium strip forming the consumable strip is arranged on one side of the rubber roller.

Furthermore, the rubber roller is driven by a motor and a gear set to rotate, and the rotation of the rubber roller drives the carbon belt and the medium belt which form the material consumption belt to convey.

Further, still be provided with the fixed subassembly of test tube below the test tube, the test tube can be around its cylindrical center pin free rotation after being fixed.

Further, the hot roller is arranged at the position corresponding to the test tube, and the carbon ribbon separated after passing through the printing head passes through the joint of the hot roller and the test tube.

Further, the hot-rolling outside is provided with soft glue film, and inside is provided with the heater block.

Furthermore, the hot roller and the test tube are driven to rotate by a carbon ribbon connected with a take-up shaft, and the take-up shaft is connected with a power rotation driving assembly.

Has the advantages that: this device can easily realize printing the pattern on cylindrical outer walls such as test tubes through the mode of two-stage heat-transfer seal: the first-stage transfer printing transfers redundant ink materials on the carbon ribbon to a medium belt through a flat-pressing type thermal printing head, a pattern to be printed is formed on the carbon ribbon, and the second step transfers the clusters on the carbon ribbon to the outer wall of the test tube through simple thermal transfer printing. This device makes the printing that flat-pressing formula thermal print head was used for the cylinder outer wall become possible, compares in current adoption limit pressure formula thermal print head, and flat-pressing formula thermal print head commonality is strong, long service life, is difficult to the broken needle, prints low cost price.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

The labels in the figure are: the test tube testing device comprises a feeding shaft 1, a collecting shaft 2, a material consumption belt (a carbon belt and a medium belt) 3, a medium belt 4, a carbon belt 5, a flat-pressing thermal printing head 6, a rubber roller 7, a belt guide rod 8, a test tube fixing assembly 9, a test tube 10 and a hot roller 11.

Detailed Description

The present invention will be described in more detail below with reference to the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 1, a thermal transfer printing apparatus for test tubes comprises: a feeding reel 1 for mounting and conveying the material consumption belt, a flat-pressing thermal printing head 6, a rubber roller 7 driven by a motor and a gear set, a hot roller 11, a test tube fixing component 9, a take-up reel 2, and a plurality of belt guiding rods 8 for guiding the transmission paths of the material consumption belt, the carbon belt and the medium belt, wherein the printing head is provided with required driving electric signals by a circuit board.

The printing consumable material is a consumable material tape 3, a carbon tape and a medium tape are overlapped and then wound into a tubular winding core to form a consumable material tape coil, and the consumable material tape coil is installed on the tape feeding shaft 1. The medium belt 4 constituting the material consumption belt is arranged at the outer layer, the carbon belt 5 is arranged at the inner layer, and the transfer coating surface of the carbon belt is contacted with the inner side of the medium belt. The medium belt is preferably made of PET, and may be made of paper, PP, PVC, or the like, which can be printed by thermal transfer printing.

The rubber roller 7 is positioned right below the printing head 6, and the carbon ribbon and the medium ribbon are overlapped and penetrate between the printing head and the rubber roller, wherein the carbon ribbon 5 is arranged on the side of the printing head 6, and the medium ribbon 4 is arranged on the side of the rubber roller 7.

The rubber roller is driven to rotate by a motor and a gear set, and the rotation of the rubber roller drives the carbon belt and the medium belt to be conveyed.

After the carbon ribbon and the medium belt pass through the printing head and the rubber roller, the carbon ribbon and the medium belt are separated, wherein the separated medium belt is recovered by the belt collecting shaft 2 after passing through the plurality of belt guide rods, and the separated carbon ribbon is transmitted to the hot roller 11 and the test tube 10. The test tube 10 can freely rotate around the cylindrical central shaft after being fixed by the test tube fixing component 9 positioned below the test tube, and the test tube fixing component can be suitable for test tubes with different sizes; the hot roller is positioned right above the test tube, the thermal ribbon passes through the position between the hot roller and the test tube, the hot roller keeps constant temperature in an electric heating mode, and at the temperature, the hot roller can transfer the ink of the thermal ribbon to the outer side wall of the test tube; the outer side of the hot roller is provided with a soft adhesive layer which is used for uniformly and tightly pressing the carbon ribbon on the outer side wall of the test tube; the hot roller and the test tube are driven to rotate by the carbon ribbon.

The printed carbon tape 5 and the media tape 4 are collected by the take-up reel 2. The take-up shaft is driven to rotate by the power assembly, and the rotating torque of the take-up shaft is controlled within a certain range.

This device sampling two-stage heat-transfer seal's mode is printed the pattern on the test tube outer wall. The first stage transfer transfers excess ink (i.e., a reverse white pattern) from the ribbon 5 to the media tape 4 by the flat-bed thermal printhead 6, forming a print pattern on the ribbon for the second stage transfer. The carbon tape and the medium tape are wound on the tubular winding core in an overlapping mode to form a consumable roll, wherein the medium tape is arranged on the outer layer of the consumable roll, the consumable roll is installed on the tape feeding shaft 1, the overlapped carbon tape and the medium tape are transmitted to a position between the printing head and the rubber roller from the consumable roll, the printing head forms a pattern on the medium tape under the driving of a signal provided by the circuit board, the pattern and the pattern to be printed are mutually opposite white, and the corresponding ink is transferred to the medium tape at the moment, so that the pattern which is consistent with the pattern to be printed is formed on the carbon tape. The rubber roller presses the media and carbon ribbons against the print head, providing the appropriate pressure for this transfer process. After the first transfer, the medium tape is separated from the carbon tape, the medium tape is guided to the tape take-up shaft by the tape guide bar, and the carbon tape is guided between the heat roller and the test tube to perform the second thermal transfer. The outer surface of the hot roller is attached with an adhesive layer, the hot roller is heated by electric power, and the heating temperature of the hot roller is constantly controlled at the temperature required by transfer printing. The test tube is fixed by fixed subassembly, can freely rotate around its cylindricality center pin after the test tube is fixed. The carbon tape is pressed to the surface of the test tube by the heat roller, and the pattern on the carbon tape is transferred to the surface of the test tube. The used carbon tape is guided to the take-up reel. The carbon ribbon and the medium ribbon are simultaneously recovered by the ribbon collecting shaft, the ribbon collecting shaft is driven by the power assembly to rotate, the rotating torque of the ribbon collecting shaft is controlled within a certain range, relatively constant pulling force is provided for the carbon ribbon and the medium ribbon, and the carbon ribbon and the medium ribbon are wound on the winding core driven by the ribbon collecting shaft to complete the recovery of the carbon ribbon and the medium.

Although the present patent uses the test tube as the printing material, those skilled in the art should understand that the device of the present patent can also be applied to other objects with cylindrical surface, and all the creation and application of other utility models based on the inventive concept of the present patent belong to the protection scope of the present patent.

Claims

1. The utility model provides a thermal transfer printing device for test tube which characterized in that: comprises a belt feeding shaft (1), a flat-pressing type thermal printing head (6), a rubber roller (7), a hot roller (11), a test tube (10), a belt collecting shaft (2) and a plurality of belt guide rods; the tape feeding shaft (1) is provided with a consumable material tape roll, the consumable material tape roll is formed by winding a consumable material tape (3), and the consumable material tape (3) is formed by overlapping and compounding a carbon tape and a medium tape; the material consumption belt is conveyed by the belt guide rod and penetrates through a joint between the thermal printing head (6) and the rubber roller (7), then the carbon belt is separated from the medium belt, the separated medium belt (4) is connected with the belt take-up shaft (2) after being guided by the belt guide rod, and the separated carbon belt (5) is also connected with the belt take-up shaft after being conveyed by the belt guide rod and penetrating through a joint between the hot roller (11) and the test tube (10).

2. A thermal transfer printing device for test tubes according to claim 1, characterized in that: the medium belt (4) forming the consumable material belt roll is arranged on the outer layer, the carbon belt (5) is arranged on the inner layer, and the transfer printing coating surface of the carbon belt is in contact with the inner side of the medium belt.

3. A thermal transfer printing device for test tubes according to claim 1, characterized in that: the medium belt can be one of PET, paper, PP and PVC, and is made of PET materials.

4. A thermal transfer printing device for test tubes according to claim 1, characterized in that: the rubber roller (7) is positioned corresponding to the thermal printing head (6), the consumable strip penetrates through the joint part between the thermal printing head (6) and the rubber roller (7), the carbon strip (5) forming the consumable strip is arranged on one side of the printing head, and the medium strip (4) forming the consumable strip is arranged on one side of the rubber roller.

5. A thermal transfer printing device for test tubes according to claim 1, characterized in that: the rubber roller is driven by a motor and a gear set to rotate, and the rotation of the rubber roller drives the carbon belt and the medium belt which form the material consumption belt to transmit.

6. A thermal transfer printing device for test tubes according to claim 1, characterized in that: still be provided with the fixed subassembly of test tube below the test tube, the test tube can be around its cylindrical center pin free rotation after being fixed.

7. A thermal transfer printing device for test tubes according to claim 1, characterized in that: the hot roller is arranged at the position corresponding to the test tube, and the separated carbon ribbon passes through the combined part of the hot roller and the test tube.

8. A thermal transfer printing device for test tubes according to claim 1, characterized in that: the hot-rolling outside is provided with soft glue film, and inside is provided with the heater block.

9. A thermal transfer printing device for test tubes according to claim 1, characterized in that: the hot roller and the test tube are driven to rotate by a carbon ribbon connected with a take-up shaft, and the take-up shaft is connected with a power rotation driving assembly.