A rapidly cooling spore powder printing mold

Abstract

This invention provides a rapidly cooling spore powder printing mold, belonging to the field of printing mold technology. The rapidly cooling spore powder printing mold includes a mold body, cooling channels, a liquid inlet, a liquid outlet, and a mechanical temperature sensor. The mold body is the core component of the printing mold, and its surface is decorated with printed patterns or text. The cooling channels are located inside the mold body and are distributed in a mesh pattern. The liquid inlet and outlet are located on both sides of the mold body and communicate with the cooling channels. The mechanical temperature sensor is installed on the surface or inside the mold body to monitor the mold temperature. The distribution density of the cooling channels gradually increases from the center to the edge of the mold body. This invention solves the problem of low cooling efficiency in traditional spore powder printing molds, enabling rapid temperature reduction, shortening post-printing cooling time, and improving production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of printing mold technology, and specifically relates to a rapidly cooling spore powder printing mold. Background Technology

[0002] Spore powder is a biological agent widely used in agriculture, medicine, and food. Its packaging printing not only needs to meet aesthetic and informational requirements but also ensure airtightness and moisture resistance. Printing molds are key equipment in spore powder packaging production, used to print patterns, text, or logos onto packaging materials. Traditional spore powder printing molds are typically made of metal, transferring patterns onto the packaging material through mechanical imprinting or thermoforming. Temperature control of the mold is particularly important during the spore powder packaging printing process. Because spore powder is sensitive to temperature and humidity, temperature fluctuations in the mold during printing can lead to packaging material deformation, blurred printed patterns, or impaired spore activity. Therefore, the design of the printing mold needs to balance efficient production with product quality.

[0003] While traditional spore powder printing molds play a vital role in packaging production, they still suffer from the following drawbacks in practical applications: Traditional molds typically employ natural cooling or external air cooling, resulting in slow cooling rates and extended production cycles, failing to meet the demands of large-scale production. Because spore powder packaging materials are usually thin and easily deformed, the molds are prone to wear and tear over long-term use, affecting the clarity of the printed pattern and the mold's lifespan. The cooling and temperature regulation processes for traditional molds are time-consuming, leading to low production efficiency and making them unsuitable for modern high-speed production lines. Traditional cooling methods (such as air cooling or water cooling) typically consume significant amounts of energy, increasing production costs. Utility Model Content

[0004] In view of this, the present invention provides a rapidly cooling spore powder printing mold, which solves the drawback of low cooling efficiency of traditional spore powder printing molds and improves production efficiency.

[0005] This utility model is implemented as follows:

[0006] This invention provides a rapidly cooling spore powder printing mold, comprising a mold body, cooling channels, a liquid inlet, a liquid outlet, and a mechanical temperature sensor; the mold body is the core component of the printing mold, and its surface is provided with printed patterns or text; the cooling channels are arranged inside the mold body in a mesh pattern; the liquid inlet and liquid outlet are located on both sides of the mold body and communicate with the cooling channels; the mechanical temperature sensor is installed on the surface or inside the mold body for monitoring the mold temperature.

[0007] Based on the above technical solution, the rapid cooling spore powder printing mold of this utility model can be further improved as follows:

[0008] The distribution density of the cooling channels gradually increases from the center of the mold body towards the edge.

[0009] Furthermore, the inlet and outlet are connected to an external cooling medium circulation system via quick connectors.

[0010] The external cooling medium circulation system includes the following components:

[0011] Cooling medium storage tank: Used to store cooling media (such as water or air).

[0012] Circulation pump: Used to pump the cooling medium from the storage tank into the inlet of the mold and maintain the circulation of the medium.

[0013] Cooler: Used to cool the high-temperature cooling medium flowing out of the mold outlet, ensuring that the medium remains at a low temperature during circulation.

[0014] Pipelines: Connect the inlet and outlet of the cooling medium storage tank, circulating pump, cooler, and mold to form a closed loop.

[0015] Control valve: Used to regulate the flow and pressure of the cooling medium to ensure stable cooling effect.

[0016] Furthermore, the cooling channel is equipped with baffles, which are fixed to the inner wall of the cooling channel by welding to enhance the flow efficiency of the cooling medium.

[0017] The baffles are sheet-like structures with textured surfaces or holes, and their dimensions match the inner diameter of the cooling channel. The baffles are welded to the inner wall of the cooling channel and are spaced apart along the flow direction of the cooling medium.

[0018] Furthermore, the interior of the mold body is provided with a heat insulation layer, which is located between the cooling channel and the mold surface.

[0019] The insulation layer uses one or more of the following materials in combination: ceramic fiber, polyurethane foam, glass wool, and aerogel.

[0020] Furthermore, a filter screen is provided at the liquid outlet to filter impurities in the cooling medium.

[0021] Furthermore, the cooling channel is provided with guide plates at the inlet and outlet. The guide plates are arc-shaped or wing-shaped structures to optimize the flow direction of the cooling medium.

[0022] Deflectors are installed at the inlet and outlet of the cooling channel. The inlet deflector distributes the cooling medium evenly throughout the channel, while the outlet deflector collects the cooling medium and guides its flow out. The deflectors are fixed to the inner wall of the cooling channel by welding or bolting to ensure stability.

[0023] Furthermore, the quick connector includes a male connector, a female connector, and a locking mechanism. The male connector is installed on the liquid inlet or the liquid outlet and has a sealing ring and a snap-fit ​​structure at its front end. The female connector is installed on the pipeline of the external cooling medium circulation system and has a groove and a sealing surface inside that match the male connector.

[0024] The locking mechanism achieves rapid locking and separation of the male and female connectors through rotation, ensuring no leakage at the connection.

[0025] Furthermore, the cooling channel is made of copper or aluminum alloy.

[0026] Furthermore, the mechanical temperature sensor includes a bimetallic thermometer or a pressure thermometer.

[0027] The sensor is installed on the surface or inside the mold body, near the cooling channels, to accurately monitor the mold temperature. The sensor is secured to the mold by threaded connection or clips, ensuring tight contact with the mold surface.

[0028] Examples of bimetallic thermometer models: WSS-501W, WSS-501F bimetallic thermometers; Examples of pressure thermometer models: WTZ-280B.

[0029] Compared with existing technologies, the beneficial effects of the rapidly cooling spore powder printing mold provided by this utility model are:

[0030] Significantly improves cooling efficiency: By setting up mesh or spiral cooling channels inside the mold and introducing circulating cooling media (such as water or air), the mold temperature can be reduced quickly, shortening the cooling time after printing, thereby improving production efficiency;

[0031] The distribution density of cooling channels gradually increases from the center of the mold to the edge, ensuring uniform temperature on the mold surface and avoiding local overheating or undercooling.

[0032] Precise control of mold temperature:

[0033] Mechanical temperature sensors (such as bimetallic thermometers or pressure thermometers) monitor the mold temperature in real time and display it intuitively through a temperature display window. Operators can adjust the flow rate and temperature of the cooling medium as needed.

[0034] A flow regulating valve is installed at the liquid inlet, which can precisely control the flow rate of the cooling medium according to actual production needs, and further optimize the cooling effect;

[0035] Extend mold life:

[0036] The mold surface is coated with a wear-resistant coating (such as cemented carbide or ceramic), which can effectively reduce the wear of the mold during long-term use and extend the service life of the mold.

[0037] The cooling channel is equipped with baffles to enhance the flow efficiency of the cooling medium and reduce mold deformation and damage caused by high temperature;

[0038] Improve print quality:

[0039] The mold has an internal heat insulation layer (such as ceramic fiber or polyurethane foam) to effectively isolate the cooling channel from the mold surface, ensuring uniform temperature on the mold surface and preventing blurring of printed patterns or deformation of packaging materials.

[0040] The guide vanes are placed at the inlet and outlet of the cooling channel to optimize the flow direction of the cooling medium and further improve cooling efficiency and printing quality. Attached Figure Description

[0041] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 A perspective view of a rapidly cooling spore powder printing mold;

[0043] Figure 2 A longitudinal cross-sectional view of the cooling channel of a rapidly cooling spore powder printing mold;

[0044] Figure 3 A cross-sectional view of the cooling channel of a rapidly cooling spore powder printing mold;

[0045] The attached diagram lists the components represented by each number as follows:

[0046] 10. Mold body; 20. Cooling channel; 21. Baffle; 30. Liquid inlet; 40. Liquid outlet. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0048] like Figures 1-3 The image shows a first embodiment of a rapidly cooling spore powder printing mold provided by this utility model. In this embodiment, it includes a mold body 10, a cooling channel 20, a liquid inlet 30, a liquid outlet 40, and a mechanical temperature sensor. The mold body 10 is the core component of the printing mold, and its surface is provided with printed patterns or text. The cooling channel 20 is located inside the mold body 10 and is distributed in a mesh pattern. The liquid inlet 30 and the liquid outlet 40 are located on both sides of the mold body 10 and are connected to the cooling channel 20. The mechanical temperature sensor is installed on the surface or inside the mold body 10 to monitor the mold temperature.

[0049] In the above technical solution, the distribution density of the cooling channels 20 gradually increases from the center of the mold body 10 to the edge.

[0050] Furthermore, in the above technical solution, the liquid inlet 30 and the liquid outlet 40 are connected to the external cooling medium circulation system via quick connectors.

[0051] Furthermore, in the above technical solution, a baffle plate 21 is provided inside the cooling channel 20. The baffle plate 21 is fixed to the inner wall of the cooling channel 20 by welding to enhance the flow efficiency of the cooling medium.

[0052] The baffles are sheet-like structures with textured surfaces or perforations. They are evenly distributed along the length of the cooling channel, with the spacing designed according to the flow rate and velocity of the cooling medium. The specific shape is designed based on cooling requirements and channel dimensions. Common shapes include:

[0053] Wavy: The surface is wavy, which can effectively break the laminar flow of the cooling medium and enhance the turbulence effect.

[0054] Airfoil: Similar to the shape of an airplane wing, it can guide the cooling medium to flow in a specific direction, improving flow efficiency.

[0055] Perforated plate: The surface has multiple small holes, which can disperse the flow of cooling medium and increase the heat exchange area.

[0056] Furthermore, in the above technical solution, the interior of the mold body 10 is provided with a heat insulation layer, which is located between the cooling channel 20 and the mold surface.

[0057] Furthermore, in the above technical solution, a filter screen is provided at the liquid outlet 40 to filter impurities in the cooling medium.

[0058] Furthermore, in the above technical solution, guide vanes are provided at the inlet and outlet of the cooling channel 20. The guide vanes are arc-shaped or wing-shaped structures to optimize the flow direction of the cooling medium.

[0059] Furthermore, in the above technical solution, the quick connector includes a male connector, a female connector, and a locking mechanism. The male connector is installed on the liquid inlet 30 or the liquid outlet 40, and has a sealing ring and a snap-fit ​​structure at the front end. The female connector is installed on the pipeline of the external cooling medium circulation system, and has a groove and a sealing surface inside that match the male connector.

[0060] Furthermore, in the above technical solution, the cooling channel 20 is made of copper or aluminum alloy.

[0061] Furthermore, in the above technical solution, the mechanical temperature sensor includes a bimetallic thermometer or a pressure thermometer.

[0062] Specifically, the principle of this invention is as follows: The cooling channels of this invention adopt a mesh distribution to ensure that the cooling medium can evenly cover the inside of the mold and quickly absorb the heat from the mold surface. The cross-sectional shape of the cooling channels is circular, elliptical, or polygonal, flexibly designed according to the mold size and cooling requirements to maximize the cooling effect. The cooling medium (such as water or air) of the cooling medium circulation system enters the cooling channels through the inlet, absorbs the heat from the mold, flows out from the outlet, enters the external cooler for cooling, and is then recycled. The flow rate and temperature of the cooling medium can be precisely controlled by the flow regulating valve and the cooler to ensure that the mold temperature is stable within the set range. A mechanical temperature sensor is installed on the surface or inside the mold to monitor the mold temperature in real time. The temperature reading of the sensor is displayed through a temperature display window or an external pointer dial, and the operator can adjust the flow rate and temperature of the cooling medium according to the reading. A heat insulation layer is set between the cooling channels and the mold surface, using materials such as ceramic fiber, polyurethane foam, or aerogel, to effectively isolate the low temperature of the cooling channels from the high temperature of the mold surface, ensuring uniform mold surface temperature. A wear-resistant coating, made of hard alloy or ceramic, covers the mold surface, reducing wear and extending its service life. Baffles, with arc or airfoil structures, are positioned at the inlet and outlet of the cooling channels to optimize the flow direction of the cooling medium and avoid turbulence or dead zones. Baffles are installed inside the cooling channels, breaking the laminar flow of the cooling medium through textured surfaces or perforations, enhancing turbulence and improving cooling efficiency. The mold features a modular design for easy and quick installation, disassembly, and maintenance, reducing downtime. A quick-change insert design allows the mold to adapt to different printing needs; simply changing the insert allows for rapid switching of printing content, improving production flexibility.

Claims

1. A fast-cooling spore powder printing die, characterized by, The mold includes a mold body (10), a cooling channel (20), a liquid inlet (30), a liquid outlet (40), and a mechanical temperature sensor. The mold body (10) is the core component of the printing mold, and its surface is provided with printed patterns or text. The cooling channel (20) is located inside the mold body (10) and is distributed in a mesh pattern. The liquid inlet (30) and the liquid outlet (40) are located on both sides of the mold body (10) and are connected to the cooling channel (20). The mechanical temperature sensor is installed on the surface or inside the mold body (10) to monitor the mold temperature.

2. A quick-cooling spore powder printing die according to claim 1, characterized in that, The distribution density of the cooling channels (20) gradually increases from the center of the mold body (10) towards the edge.

3. A quick-cooling spore powder printing die according to claim 2, characterized in that, The inlet (30) and outlet (40) are connected to an external cooling medium circulation system via quick connectors.

4. A quick-cooling spore powder printing die according to claim 3, characterized in that, The cooling channel (20) is provided with a baffle plate (21), which is fixed to the inner wall of the cooling channel (20) by welding to enhance the flow efficiency of the cooling medium.

5. A quick-cooling spore powder printing die according to claim 4, characterized in that, The mold body (10) has an internal heat insulation layer, which is located between the cooling channel (20) and the mold surface.

6. A quick-cooling spore powder printing die according to claim 5, characterized in that, A filter screen is provided at the liquid outlet (40) to filter impurities in the cooling medium.

7. A quick-cooling spore powder printing die according to claim 6, characterized in that, The cooling channel (20) is provided with guide plates at the inlet and outlet. The guide plates are arc-shaped or wing-shaped structures used to optimize the flow direction of the cooling medium.

8. A rapidly cooling spore powder printing mold according to claim 7, characterized in that, The quick connector includes a male connector, a female connector, and a locking mechanism. The male connector is installed on the liquid inlet (30) or the liquid outlet (40), and has a sealing ring and a snap-fit ​​structure at the front end. The female connector is installed on the pipeline of the external cooling medium circulation system, and has a groove and a sealing surface inside that match the male connector.

9. A quick-cooling spore powder printing die according to claim 8, characterized in that, The cooling channel (20) is made of copper or aluminum alloy.

10. A quick-cooling spore powder printing die according to claim 9, characterized in that, The mechanical temperature sensor includes a bimetallic thermometer or a pressure thermometer.

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