Constant-temperature bottom plate of printing trolley

Abstract

The utility model discloses a constant temperature base plate of a printing dolly, which relates to the technical field of printers and comprises a constant temperature base plate body located at the bottom of the printing dolly of an ink-jet printer, a plurality of heat conduction pipes are arranged on the front side and the rear side of the constant temperature base plate body in a penetrating mode, and nuts are in threaded connection with the outer sides of the two ends of each heat conduction pipe. At least one printing assembly is installed on the constant-temperature bottom plate body and located between the adjacent heat conduction pipes, the heat conduction pipes are designed into reasonable pipeline structures such as snakelike structures and concentric-square-shaped structures according to the layout of the constant-temperature bottom plate body, and the pipeline structures are connected with an external constant-temperature circulating system through pipe joints and have enough heat exchange capacity. The heat of the constant-temperature circulating system can be accurately and stably conducted to the nozzle of the printing head of the printing trolley, the temperature of the nozzle of the printing head of the printing trolley is kept between 20 DEG C and 30 DEG C, the defects in the prior art are overcome, it is guaranteed that the nozzle is in the optimal working state all the time, and the printing quality and equipment reliability are improved. And the equipment failure rate and the maintenance cost are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to printer technical field especially is related to printing trolley constant temperature bottom plate. BACKGROUND

[0002] In modern printing industry, inkjet printing technology is widely used because of its high precision and diversified printing effect, wherein the nozzle mounted on the printing trolley as the core component has strict requirements on the working environment, and the ink ejection performance of the nozzle is easily affected by temperature. When the temperature is too low, the viscosity of the ink increases, the fluidity becomes poor, which causes the nozzle to spray poorly, and even causes blockage. When the temperature is too high, it will accelerate the evaporation of the ink, change the composition and physicochemical properties of the ink, cause problems such as nozzle scabbing and ink droplet ejection trajectory deviation, and seriously affect the printing quality and equipment stability.

[0003] At present, most printing equipment lacks effective nozzle temperature control means, and some rely on passive heat dissipation of simple radiators, which is difficult to accurately maintain the appropriate temperature, or uses simple heating devices, but cannot achieve constant temperature control, which cannot meet the demand of the nozzle in the ideal working temperature range of 20-30℃, greatly restricts the improvement of printing quality and efficient operation of equipment, and urgently needs innovative solutions.

[0004] Therefore, the utility model provides printing trolley constant temperature bottom plate for solving the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing printing trolley constant temperature bottom plate to solve the problem that the printing head of the traditional inkjet printer is difficult to achieve constant temperature control.

[0006] In order to achieve the above purpose, the technical scheme for solving the above problems of the utility model is as follows:

[0007] The printing trolley constant temperature bottom plate comprises a constant temperature bottom plate body located at the bottom of the inkjet printer printing trolley, a plurality of heat pipes are arranged through the front and rear sides of the constant temperature bottom plate body, nuts are threadedly connected to the outer sides of the two ends of the heat pipes, and at least one printing assembly is installed on the constant temperature bottom plate body and between adjacent heat pipes.

[0008] As a further scheme of the utility model, the constant temperature bottom plate body is made of aluminum metal material, and the bottom and periphery of the constant temperature bottom plate body are wrapped with high-performance aerogel thermal insulation material or ceramic fiber thermal insulation cotton.

[0009] As a further scheme of the utility model, the heat pipes are all made of stainless steel material.

[0010] As a further embodiment of this utility model, a settling groove is provided on the constant temperature base plate body and between adjacent heat conduction pipes. Multiple first through grooves are equally spaced on the bottom wall of the settling groove, and a first docking position is provided around the first through groove and on the bottom wall of the settling groove.

[0011] As a further embodiment of this utility model, the printing assembly includes a metal heat-conducting base, the bottom side of which is adapted to the first mating position, and the metal heat-conducting base is fixed with screws at the four corners of the first mating position. A second through groove is provided in the middle of the metal heat-conducting base, and a second mating position is provided around the second through groove and on the upper side of the metal heat-conducting base.

[0012] As a further embodiment of this utility model, the printing assembly further includes a print head, the bottom side of which is adapted to the second mating position, and the print head is fixed to the second mating position at the four corners with screws.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model relates to a constant-temperature base plate for a printing carriage. The heat pipes are designed with a serpentine or U-shaped layout based on the base plate's structure. This pipe structure connects to an external constant-temperature circulation system via pipe joints, providing sufficient heat exchange capacity. It accurately and stably transfers heat from the constant-temperature circulation system to the printhead of the printing carriage, maintaining the printhead temperature between 20-30°C. Within this temperature range, ink viscosity fluctuations are effectively controlled, and the droplet size stability of the ejected ink reaches over 95%. Compared to equipment without this constant-temperature base plate, image clarity is significantly improved. This invention effectively overcomes the shortcomings of existing technologies, ensuring the printhead is always in optimal working condition, improving print quality and equipment reliability, and reducing equipment failure rates and maintenance costs. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a three-dimensional structural diagram of the constant temperature base plate of the printing trolley of this utility model;

[0017] Figure 2 This is a structural exploded view of the constant temperature base plate of the printing trolley of this utility model;

[0018] Figure 3 The constant temperature base plate of the printing carriage of this utility model is attached Figure 2 Enlarged view of the structure at point A in the middle.

[0019] The components represented by the numbers in the drawings are listed as follows: 1, constant temperature bottom plate body; 11, settling tank; 12, first through groove; 13, first butt joint position; 2, heat conducting pipe; 3, nut; 4, printing assembly; 41, metal heat conducting seat; 42, second through groove; 43, second butt joint position; 44, printing head. DETAILED DESCRIPTION

[0020] The utility model is further described below in combination with the embodiments.

[0021] Please refer to Figures 1-3 The utility model provides a printing trolley constant temperature bottom plate, including constant temperature bottom plate body 1 is located in ink jet printer printing trolley bottom, the front and rear sides of constant temperature bottom plate body 1 are provided with a plurality of heat conducting pipes 2, heat conducting pipe 2 all are made of stainless steel material;

[0022] Specifically, stainless steel material has excellent corrosion resistance, can keep stable performance in various working environments, especially in humid or chemical environment, will not be easily corroded, prolongs the service life of heat conducting pipe 2;

[0023] In an embodiment, the first end of the heat conducting pipe 2 is connected to the outlet of the shunt valve through a silica gel tube, and the end of the heat conducting pipe 2 is connected to the collecting valve through a silica gel tube. The inlet of the shunt valve is connected to the output end of the water pump, the outlet of the collecting valve is connected to the constant temperature water tank, and the water pump can inject constant temperature water in the constant temperature water tank into the inlet of the shunt valve. A temperature sensor and a PTC thermistor heating sheet or a thin film type heating element are installed in the constant temperature water tank. The PTC thermistor heating sheet or the thin film type heating element can heat the cold water in the constant temperature water tank by being powered on. The temperature sensor can sense the water temperature in the constant temperature water tank in real time. When the water temperature exceeds 30℃, the PTC thermistor heating sheet or the thin film type heating element is powered off. When the water temperature is lower than 20℃, the PTC thermistor heating sheet or the thin film type heating element is powered on again, so that the water temperature can be maintained within a preset temperature range, thereby ensuring the temperature of the printing head 44 nozzle through heat conduction.

[0024] In another embodiment, a plurality of heat conducting pipes 2 are connected end to end by U-shaped pipes to form a serpentine pipe, the first end of the serpentine pipe is connected to the output end of the water pump through a silica gel pipe, the last end of the serpentine pipe is connected to the constant temperature water tank through a silica gel pipe, the water pump can inject constant temperature water in the constant temperature water tank into the serpentine pipe, a temperature sensor and a PTC thermistor heating sheet or a thin film heating element are installed in the constant temperature water tank, the PTC thermistor heating sheet or the thin film heating element can heat the cold water in the constant temperature water tank by being powered on, the temperature sensor can sense the water temperature in the constant temperature water tank in real time, when the water temperature exceeds 30℃, the PTC thermistor heating sheet or the thin film heating element is powered off, when the water temperature is lower than 20℃, the PTC thermistor heating sheet or the thin film heating element is powered on again, the water temperature can be maintained within a preset temperature range, the temperature of the print head 44 can also be maintained within a preset temperature range.

[0025] Further, the constant temperature bottom plate body 1 is made of aluminum material, and the bottom and periphery of the constant temperature bottom plate body 1 are wrapped with high-performance aerogel thermal insulation material or ceramic fiber thermal insulation cotton.

[0026] Specifically, the aluminum material has high thermal conductivity, can quickly and evenly distribute the heat conducted by the heat conducting pipe 2 to the entire constant temperature bottom plate body 1, in addition, the aerogel and the ceramic fiber thermal insulation cotton both have excellent thermal insulation performance, can effectively prevent heat transfer, reduce heat exchange between the constant temperature bottom plate body 1 and the external environment, and ensure the temperature stability of the constant temperature bottom plate body 1.

[0027] Further, the outer side of both ends of the heat conducting pipe 2 is threadedly connected with a nut 3.

[0028] Specifically, the through holes are provided between the front and rear side walls of the constant temperature bottom plate body 1, the heat conducting pipe 2 is inserted into the through holes, and the outer threads of the outer sides of both ends of the heat conducting pipe 2 are threadedly connected with the nuts 3, which can fix the front and rear positions of the heat conducting pipe 2, so that the heat conducting pipe 2 is displaced, and the inner wall of the through hole is tightly attached to the outer wall of the heat conducting pipe 2, which can ensure good heat transfer effect.

[0029] Further, at least one printing assembly 4 is installed on the constant temperature bottom plate body 1 and between adjacent heat conducting pipes 2, the printing assembly 4 includes a metal heat conducting seat 41, the bottom side of the metal heat conducting seat 41 is adapted with the first butt joint 13, the metal heat conducting seat 41 is fixed with the first butt joint 13 at four corners by screws, a second through groove 42 is formed in the middle of the metal heat conducting seat 41, and a second butt joint 43 is provided on the upper side of the metal heat conducting seat 41 around the second through groove 42.

[0030] Specifically, the metal heat conducting seat 41 can effectively and evenly transfer the heat conducted by the heat conducting pipe 2 to the print head 44, avoiding the problem of damage to the constant temperature bottom plate body 1 caused by frequent disassembly of the print head 44.

[0031] Further, the printing assembly 4 further comprises a print head 44, the bottom side of the print head 44 is matched with the second docking site 43, and the print head 44 is fixed with screws at the four corners of the second docking site 43;

[0032] Specifically, the nozzle of the print head extends out of the second through groove 42 and the first through groove 12, allowing the nozzle to perform inkjet operation, and at the same time, the metal heat conduction seat 41 can uniformly transmit the heat conducted by the heat conduction pipe 2 to the print head 44, ensuring that the nozzle works at an appropriate temperature.

[0033] Further, the constant temperature bottom plate body 1 is provided with a settling groove 11 between adjacent heat conduction pipes 2, a plurality of first through grooves 12 are equidistantly arranged on the bottom wall of the settling groove 11, and a first docking site 13 is arranged on the outer periphery of the first through groove 12 and the bottom wall of the settling groove 11.

[0034] Specifically, the settling groove 11 not only provides installation space, but also increases the contact area, ensuring the heat exchange efficiency between the metal heat conduction seat 41 and the constant temperature bottom plate body 1, and reducing heat loss.

[0035] Working principle:

[0036] In use, the heat conduction pipe 2 is designed to have a reasonable pipe structure such as a snake shape or a back-to-back shape according to the layout of the constant temperature bottom plate body 1. The pipe structure is connected to an external constant temperature circulation system through a pipe joint and has sufficient heat exchange capacity, which can accurately and stably conduct the heat of the constant temperature circulation system to the nozzle of the print head of the printing trolley, so that the temperature of the nozzle of the print head of the printing trolley is maintained between 20-30℃.

Claims

1. A constant-temperature base plate for a printing carriage, comprising a constant-temperature base plate body (1) located at the bottom of the printing carriage of an inkjet printer, characterized in that, Multiple heat-conducting pipes (2) are provided through the front and rear sides of the constant temperature base plate body (1). Nuts (3) are threaded to the outer ends of both ends of the heat-conducting pipes (2). At least one printed component (4) is installed on the constant temperature base plate body (1) and between adjacent heat-conducting pipes (2).

2. The constant temperature base plate for the printing carriage according to claim 1, characterized in that: The constant temperature base plate body (1) is made of aluminum metal material, and the bottom and periphery of the constant temperature base plate body (1) are wrapped with high-performance aerogel heat insulation material or ceramic fiber heat insulation cotton.

3. The constant temperature base plate for the printing carriage according to claim 1, characterized in that: The heat pipes (2) are all made of stainless steel.

4. The constant temperature base plate for the printing carriage according to claim 1, characterized in that: Settling grooves (11) are provided on the constant temperature base plate body (1) and between adjacent heat conduction pipes (2). Multiple first through grooves (12) are equally spaced on the bottom wall of the settling grooves (11). A first docking position (13) is provided around the first through grooves (12) and on the bottom wall of the settling grooves (11).

5. The constant temperature base plate for the printing carriage according to claim 4, characterized in that: The printing assembly (4) includes a metal heat-conducting base (41), the bottom side of which is adapted to the first mating position (13). The metal heat-conducting base (41) is fixed to the first mating position (13) at the four corners with screws. A second through groove (42) is provided in the middle of the metal heat-conducting base (41), and a second mating position (43) is provided around the second through groove (42) and on the upper side of the metal heat-conducting base (41).

6. The constant temperature base plate for the printing carriage according to claim 5, characterized in that: The printing assembly (4) also includes a print head (44), the bottom side of which is adapted to the second mating position (43), and the print head (44) is fixed to the second mating position (43) at the four corners with screws.

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