Ink-jet printer nozzle throat pipe heating device

Abstract

The utility model relates to an ink-jet printer nozzle throat pipe heating device, which comprises a throat pipe body, a plurality of pipelines and a cable are arranged in the throat pipe body, the pipelines are combined together to form a pipeline bundle, an alloy resistance heating wire is spirally wound outside the pipeline bundle, and the cable is wound outside the pipeline bundle. According to the utility model, when the temperature of the throat pipe measured by the temperature sensor is lower than a set temperature, the controller in the main machine of the ink-jet printer enables the heating wire to heat the pipeline bundle, thereby ensuring that ink passing through the pipeline cannot be frozen, and when the temperature of the throat pipe reaches a set value, the heating wire is heated by the controller. Therefore, the ink in the pipeline is kept at a constant temperature, so that the use performance of the ink-jet printer equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of inkjet printer equipment, in particular to a nozzle throat heating device for an inkjet printer. Background Art

[0002] The nozzle throat of the inkjet printer is an important part of the inkjet printer. Its length is about 3-6 meters. It connects the ink supply system and the nozzle of the inkjet printer, and is responsible for transporting the ink from the ink supply system to the nozzle for printing. Its normal working environment is about 10~40 degrees, because the temperature has a great influence on the viscosity of the ink of the inkjet printer, and thus the working performance of the inkjet printer. However, the cold ambient temperature is usually lower than the temperature range of 10~40 degrees. Some inkjet printers add ink heating devices to the nozzle and ink core, but the ink and solvent flowing in the throat pipeline are still easy to cool down and freeze. The ink reaching the nozzle is seriously affected by the ambient temperature. Simply heating the nozzle cannot effectively solve this problem. For this reason, it is necessary to design a nozzle throat heating device for the inkjet printer. Utility Model Content

[0003] The utility model provides a nozzle throat heating device for a printer, which solves the above problems existing in the prior art during use.

[0004] The technical solution of the utility model is implemented as follows: a nozzle throat heating device for an inkjet printer comprises a throat body, wherein the throat body is provided with pipelines and cables, wherein the pipelines are provided with a plurality of roots, and all the pipelines are combined together to form a pipeline bundle, and a heating wire is spirally wound around the outside of the pipeline bundle.

[0005] Preferably, a temperature sensor is provided on the throat body.

[0006] Preferably, the heating wire is an alloy resistance heating wire.

[0007] Preferably, a positioning frame is provided in the throat body for separating the pipeline bundle from the cable position.

[0008] Preferably, a plurality of positioning frames are provided and are evenly distributed in the throat body.

[0009] Preferably, the positioning frame is disc-shaped, and is provided with a pipeline bundle passage opening and a cable passage opening.

[0010] Preferably, a support ring for fixing on the inner wall of the throat body is provided on the outer periphery of the positioning frame, a heat insulating layer is provided on the side wall of the cable passage, and a plurality of abutment protrusions are provided on the side wall of the pipeline bundle passage.

[0011] In summary, the beneficial effects of the present invention are:

[0012] 1. The utility model combines all pipelines together to form a pipeline bundle, and a heating wire is spirally wound around the pipeline bundle. The pipeline bundle is heated by the heating wire, which ensures that the ink passing through the pipeline will not be frozen, thereby improving the performance of the inkjet printer equipment. The structure is simple, can effectively heat the ink passing through the throat, and has low cost.

[0013] 2. The positioning frame is used to limit the position of the pipeline bundle and the cable to prevent the heating wire from being in contact with the cable for a long time and affecting the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 This is a schematic diagram of the structure of the utility model in Example 1 installed between the inkjet printer host and the nozzle with a partial section enlargement;

[0016] Figure 2 This is a schematic diagram of the structure of the positioning frame in the utility model in Example 2;

[0017] Figure 3 This is a schematic diagram of the structure in which the positioning frame is located inside the throat body in Example 2.

[0018] In the figure: 1. throat body; 2. pipeline bundle; 21. pipeline; 3. cable; 4. heating wire; 5. temperature sensor; 6. positioning frame; 61. pipeline bundle passage; 62. cable passage; 63. support ring; 64. thermal insulation layer; 65. resistance protrusion; 7. inkjet printer host; 8. nozzle. DETAILED DESCRIPTION

[0019] The following will be combined with the attached embodiment of the utility model Figure 1-3 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1:

[0021] like Figure 1As shown, the utility model discloses a nozzle throat heating device for a printer, which includes a throat body 1, which is connected between a printer host 7 and a nozzle 8, and a pipe 21 and a cable 3 are arranged in the throat body 1, and a plurality of pipes 21 are arranged, and the pipe 21 is used to supply ink from the ink core of the printer host 7 to the nozzle 8, and also to supply useless ink droplets in the nozzle 8 to return to the ink core of the printer host 7 through the pipe 21 after being recovered by a recovery pipe of the nozzle 8, wherein all the pipes 21 are merged together to form a pipe bundle 2, and the utility model has a heating wire 4 spirally wound outside the pipe bundle 2, and the heating wire 4 is closely attached to the pipe bundle 2, and the heating wire 4 is specifically an alloy resistance heating wire 4, which has a simple structure, high heating efficiency, long service life, and strong controllability, and the alloy resistance heating wire 4 is controlled by a controller in the printer host 7, and in addition, the utility model is further provided with a temperature sensor 5 on the throat body 1.

[0022] When working, the ink in the ink core of the printer host 7 is pressurized through the pipe 21 in the throat body 1 and flows to the nozzle 81. The useless ink droplets in the nozzle 8 are recovered by the recovery pipe of the nozzle 8, and then return to the ink core in the printer host 7 through the pipe 21 in the throat body 1. When the temperature sensor 5 measures that the temperature of the throat is lower than the set temperature, the controller in the printer host 7 makes the heating wire 4 heat the pipe cluster 2 to ensure that the ink passing through the pipe 21 will not be frozen. When the temperature of the throat reaches the set value, the heating wire 4 is stopped to keep the ink in the pipe 21 at a constant temperature, thereby improving the performance of the printer equipment.

[0023] Example 2

[0024] like Figure 2 and Figure 3 As shown, Example 2 is basically the same as Example 1, except that in Example 2, a positioning frame 6 for separating the position of the pipeline bundle 2 and the cable 3 is provided in the throat body 1, and the positioning frame 6 is provided in plurality and is evenly distributed in the throat, and the positioning frame 6 is disc-shaped, and a pipeline bundle through-port 61 and a cable through-port 62 are provided on the positioning frame 6. The pipeline bundle 2 passes through the pipeline bundle through-port 61, and the cable 3 passes through the cable through-port 62. The positioning frame 6 is used to limit the position of the pipeline bundle 2 and the cable 3 to prevent the heating wire 4 from being in long-term contact with the cable 3 and having an adverse effect on the cable 3.

[0025] Furthermore, a support ring 63 for fixing on the inner wall of the throat body 1 is provided on the outer periphery of the positioning frame 6, and a heat insulating layer 64 is provided on the side wall of the cable passage 62. The heat insulating layer 64 can be made of glass wool, polystyrene foam, etc., and is used to prevent the heat of the heater from being transferred to the cable 3 through the positioning frame 6. In addition, a plurality of interference protrusions 65 are provided on the side wall of the pipeline bundle passage 61. These interference protrusions 65 are used to support the pipeline 21, and the heating wire 4 can pass between two adjacent interference protrusions 65.

[0026] It should also be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A nozzle throat heating device for a printer, comprising a throat body, wherein a pipeline and a cable are arranged in the throat body, wherein the pipeline is provided with a plurality of cables, and wherein: All the pipelines are combined together to form a pipeline bundle, and a heating wire is spirally wound around the outside of the pipeline bundle.

2. The nozzle throat heating device of a printer according to claim 1, characterized in that: A temperature sensor is arranged on the throat pipe body.

3. The nozzle throat heating device of a printer according to claim 1, characterized in that: The heating wire is an alloy resistance heating wire.

4. The nozzle throat heating device of a printer according to claim 1, characterized in that: A positioning frame is arranged in the throat body for isolating the pipeline bundle from the cable position.

5. The nozzle throat heating device of a printer according to claim 4, characterized in that: A plurality of positioning frames are provided and are evenly distributed in the throat body.

6. The nozzle throat heating device of a printer according to claim 4, characterized in that: The positioning frame is in the shape of a disc and is provided with a pipeline bundle through-hole and a cable through-hole.

7. The nozzle throat heating device of a printer according to claim 4, characterized in that: A support ring for fixing on the inner wall of the throat body is arranged on the outer periphery of the positioning frame, a heat insulation layer is arranged on the side wall of the cable through-hole, and a plurality of abutment protrusions are arranged on the side wall of the pipeline cluster through-hole.

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