Water cooling device and printing extrusion mechanism

By designing a water-cooling device to cool the printing equipment, the problem of overheating causing the consumables to soften was solved, thus ensuring the integrity of the printed products.

CN223934163UActive Publication Date: 2026-02-24SHENZHEN BIQU INNOVATION TECH CO LTD
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Patent Information

Application Number
CN202520565215.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-02-24
Estimated Expiration
2035-03-27

AI Technical Summary

Technical Problem

In existing technologies, printing equipment can easily cause excessively high temperatures when heating consumables, resulting in softening of the consumables before they enter the heating zone and causing defects in the printed products.

Method used

Design a water-cooling device, including a converter head, an exchange head, a side frame, and a water outlet pipe, to cool the printing equipment through cooling water circulation, especially to cool the throat and extruder of the extrusion device, to prevent the filament from softening.

Benefits of technology

It effectively prevents the softening and breakage of consumables during the printing process, ensuring the integrity of the printed products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a water cooling device and a printing extrusion mechanism, the water cooling device comprises a conversion head for cooling water to enter and flow out, an exchange head positioned at one end of the conversion head, a side frame with two ends respectively connected with the conversion head and the exchange head, and a water outlet pipe with two ends respectively connected with the exchange head and the conversion head, and a first through hole is arranged in the exchange head. According to the water cooling device and the printing extrusion mechanism, when the temperature of printing equipment is too high in the printing process, cooling water is fed into the conversion head through external equipment, the cooling water in the conversion head enters the exchange head through the side plate, the exchange head cools the printing equipment, and the printing efficiency is improved. Therefore, the problem of material breakage caused by softening of the consumables in the moving process due to too high temperature in the printing process of the printing equipment is prevented.
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Description

Technical Field

[0001] This utility model relates to the field of printer technology, and in particular to a water cooling device. Background Technology

[0002] A 3D printer is a type of additive manufacturing technology, also known as rapid prototyping. It uses a digital model file as a basis and employs special waxes, powdered metals, or plastics—materials that can be bonded—to create three-dimensional objects by printing layers of these bonding materials. In existing extrusion mechanisms, the printing process requires heating and melting the filament. This heating and melting process can easily raise the temperature of other components in the printing equipment. As the filament moves through the machine, the overall temperature of the printing equipment increases, causing it to soften before it even enters the heating zone, making it unable to melt and resulting in defects in the printed product.

[0003] Therefore, a water-cooling device is needed to solve the above-mentioned technical problems. Utility Model Content

[0004] This invention provides a water-cooling device that solves the problem in the prior art where the printing equipment temperature is too high, causing the consumables to soften before entering the heating zone and thus preventing them from entering the heating zone, resulting in defects in the printed products.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a water cooling device, including a conversion head for cooling water inlet and outlet, an exchange head located at one end of the conversion head, a side frame with both ends connected to the conversion head and the exchange head respectively and used to allow cooling water to flow from the conversion head into the exchange head, and a water outlet pipe with both ends connected to the exchange head and the conversion head respectively and used to allow water to flow from the exchange head into the conversion head, wherein a first through hole is provided inside the exchange head.

[0006] In this utility model, the converter includes an inlet channel and an outlet channel, and the outlet channel is connected to the outlet pipe;

[0007] The side frame is provided with a first channel, and the two ends of the first channel are respectively connected to the water inlet channels of the exchange head and the conversion head.

[0008] In this invention, the side frame is provided with multiple weight-reduction holes.

[0009] In this invention, the exchange head and the side frame are integrally formed.

[0010] In this invention, multiple temperature control probes are provided on the side frame.

[0011] In this invention, a cooling fan is also provided on one side of the exchange head.

[0012] In this invention, the water outlet pipe is spaced apart from the side frame.

[0013] In this utility model, the water cooling device is further provided with a flexible hose connector connected to the conversion head. The flexible hose connector is provided with an inlet that communicates with the water inlet channel and an outlet that communicates with the water outlet channel.

[0014] A printing extrusion mechanism includes the water-cooling device described above, and includes an extrusion device. The extrusion device includes an extruder located on one side of the side frame, a throat located on one side of the extruder and within a first through hole of the exchange head, and a heating block connected to the throat.

[0015] In this invention, the extruder includes a first extrusion gear for extruding consumables and a second extrusion gear located on one side of the first extrusion gear and meshing with the first extrusion gear, and a second through hole for extruding consumables to pass through is provided between the first extrusion gear and the second extrusion gear.

[0016] Compared with the prior art, the advantages of this utility model are as follows: When the temperature of the printing equipment is too high during the printing process, the external device sends cooling water into the conversion head. The cooling water in the conversion head enters the exchange head through the side plate. The exchange head cools down the printing equipment, thereby preventing the consumables from softening and breaking during the printing process due to excessive temperature. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments are briefly introduced below. The drawings described below are only the corresponding drawings of some embodiments of this utility model.

[0018] Figure 1 This is a perspective view of the printing extrusion mechanism of this utility model.

[0019] Figure 2 This is a perspective view of the extrusion device of this utility model.

[0020] Figure 3 This is a perspective view of the water-cooling device of this utility model.

[0021] Figure 4 This is a side view of the side frame of the water-cooling device of this utility model.

[0022] Figure 5 For along Figure 4 A sectional view created by AA.

[0023] 11. Extrusion device; 12. Water cooling device; 111. Throat; 112. Extruder; 113. Heating block; 114. Nozzle; 1121. First extrusion gear; 1122. Second extrusion gear; 121. Converter head; 122. Side frame; 123. Exchange head; 124. Hose connector; 125. Water outlet pipe; 126. Cooling fan; 1241. Water outlet; 1242. Water inlet; 1221. First channel; 1222. Weight reduction hole; 1223. First through hole. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0025] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure pertains.

[0026] The terms "first," "second," and similar words used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] The following is a preferred embodiment of a water-cooling device provided by this utility model that can solve the above-mentioned technical problems.

[0029] Please refer to Figure 1, Figure 2 and Figure 3 ,in Figure 1 This is a perspective view of the water-cooling device of this utility model. Figure 2 This is a perspective view of the extrusion device of the water-cooling apparatus of this utility model. Figure 3 This is a perspective view of the water-cooling device of this utility model.

[0030] In the diagram, units with similar structures are represented by the same labels.

[0031] The terms "first" and "second" in this utility model are used for descriptive purposes only and should not be construed as indicating or implying relative importance, nor as a restriction on the order of events.

[0032] This utility model provides a water cooling device, including a switching head 121 for cooling water inlet and outlet, an exchange head 123 located at one end of the switching head 121, a side frame 122 with both ends connected to the switching head 121 and the exchange head 123 respectively, for allowing cooling water to flow from the switching head 121 into the exchange head 123, and an outlet pipe 125 with both ends connected to the exchange head 123 and the switching head 121 respectively, for allowing water to flow from the exchange head 123 into the switching head 121. The exchange head 123 has a first through hole 1223. The switching head 121 is used to connect to external equipment to allow cooling water to enter the switching head 121. The water inside the device and after heat dissipation is discharged into the external device. The exchange head 123 is used to cool the printing device. When the printing device is cooled, the cooling water enters the exchange head 121, flows into the side frame 122, and flows into the exchange head 123. Since the exchange head 123 is connected to the printing device, the exchange head 123 cools the printing device. The cooled water finally flows out from the outlet pipe 125. When the water cooling device 12 cools the printing device, the cooling water of the water cooling device 12 forms a cycle, which can continuously cool the printing device.

[0033] Please refer to Figure 4 and Figure 5 , Figure 4 This is a side view of the side frame of the water-cooling device of this utility model. Figure 5 For along Figure 4The cross-sectional view made by AA shows that the converter head 121 includes an inlet channel and an outlet channel. The outlet channel is connected to the outlet pipe 125. A first channel 1221 is provided in the side frame 122. The two ends of the first channel 1221 are connected to the inlet channel of the exchange head 123 and the converter head 121, respectively. Cooling water enters the converter head 121 from the inlet channel. The cooling water entering the converter head 121 enters the first channel 1221 and then enters the side frame 122. The water in the outlet pipe 125 is connected to the outlet channel. The water that has cooled the printing equipment flows out from the outlet channel. The inlet channel and the outlet channel of the converter head 121 are not connected, thereby effectively preventing the cooling water and the water that has cooled the printing equipment from mixing together.

[0034] Multiple weight-reducing holes 1222 are provided on the side frame 122. The weight-reducing holes 1222 are used to reduce the weight of the side frame 122, thereby reducing the overall weight of the water cooling device 12.

[0035] The exchange head 123 and the side frame 122 are made as one piece. The one-piece molding of the exchange head 123 and the side frame 122 is more robust and easier to install.

[0036] Multiple temperature control probes are installed on the side frame 122. The temperature control probes are used to detect the temperature of the printing equipment. When the temperature of the printing equipment is higher than the set value of the temperature control probe, the water cooling equipment is activated to cool down the printing equipment.

[0037] A cooling fan 126 is also provided on one side of the exchange head 123. The cooling fan 126 is used to further cool the exchange head 123 and further accelerate the heat dissipation effect.

[0038] The water outlet pipe 125 is spaced apart from the side frame 122. Water cooled by the printing equipment flows out from the water outlet pipe 125. The water outlet pipe 125, which is spaced apart from the side frame 122, can effectively prevent the temperature of the water outlet pipe 125 from being conducted into the side frame 122.

[0039] The water cooling device 12 is also provided with a hose connector 124 connected to the converter head 121. The hose connector 124 is provided with an inlet 1242 connected to the water inlet channel and an outlet 1241 connected to the water outlet channel. The hose connector 124 is used to connect the hose to external equipment. The inlet 1242 is used to provide new cooling water to the converter head 121, and the outlet 1241 is used to discharge the water cooled by the extrusion device 11.

[0040] Working principle of Example 1:

[0041] The water cooling device 12 is installed on the printing equipment. When the temperature control probe senses that the temperature of the printing equipment exceeds the temperature set by the temperature control probe, the cooling water of the external equipment enters the hose connector 124. The cooling water entering the hose connector 124 enters the converter head 121 from the water inlet 1242. The cooling water in the converter head 121 enters the first through hole 1223 of the side frame 122 from the water inlet channel. The cooling water in the first through hole 1223 enters the exchange head 123. The exchange head 123 cools the cooling equipment. After the cooling water in the exchange head 123 cools the printing equipment, it flows out from the water outlet pipe 125. The water in the water outlet pipe 125 enters the converter head 121 from the water outlet channel. The water entering the converter head 121 enters the hose connector 124 and is discharged from the water outlet 1241 of the hose connector 124, thus forming a cycle that can continuously cool the printing equipment.

[0042] Please refer to Figure 1 and Figure 2 .

[0043] A printing extrusion mechanism includes the aforementioned water-cooling device 12 and an extrusion device 11. The extrusion device 11 includes an extruder 112 located on one side of a side frame 122, a throat 111 located on one side of the extruder 112 and within a first through hole 1223 of an exchange head 123, and a heating block 113 connected to the throat 111. The extrusion device 11 is used to melt consumables and print products. The water-cooling device 12 is used to cool the extrusion device 11 and prevent consumables from blocking the throat 111 and thus preventing them from entering the extruder. The material melts inside the heating block 113. When the printing extrusion mechanism prints the product, the extruder 112 pulls the filament towards the throat 111. The filament passes through the throat 111 and enters the heating block 113 for heating and melting. During the heating process, because the throat 111 is connected to the heating block 113, the heat of the heating block 113 is conducted into the throat 111. When the filament enters the throat 111, the temperature of the throat 111 can easily soften or melt the filament, preventing it from entering the heating block 113. 13. Internal heating. Further, the side frame 122 is located on one side of the extruder 112, and the throat 111 is located within the first through hole 1223 of the exchange head 123. The exchange head 123 and the conversion head 121 are located at opposite ends of the side frame 122. Cooling water from the conversion head 121 enters the side frame 122, and the cooling water from the side frame 122 provides initial heat dissipation for the extruder 112, preventing the extruder 112 from overheating. Further, the cooling water from the side frame 122 enters the exchange head 123. Because the throat 111 is located... Inside the exchange head 123, the cooling water inside the exchange head 123 can effectively dissipate heat from the throat tube 111, thereby preventing the throat tube 111 from overheating and melting the consumables. After cooling the throat tube 111, the cooling water flows out from the outlet pipe 125 towards the exchange head 121, allowing the cooling water in the side frame 122 to continuously enter the exchange head 123 to cool the throat tube 111, thus effectively avoiding the problem of the consumables melting inside the throat tube 111 and preventing the problem of material breakage during printing.

[0044] In this embodiment, the extrusion device 11 is also equipped with a motor, which is used to drive the first extrusion gear 1121 to rotate.

[0045] The extruder 112 includes a first extrusion gear 1121 for extruding consumables and a second extrusion gear 1122 located on one side of the first extrusion gear 1121 and meshing with the first extrusion gear 1121. A second through hole is provided between the first extrusion gear 1121 and the second extrusion gear 1122 for the extruded consumables to pass through. When the consumables enter the second through hole, the first extrusion gear 1121 and the second extrusion gear 1122 clamp the consumables. When the first extrusion gear 1121 rotates, it cooperates with the second extrusion gear 1122 to extrude and drive the consumables to move, so that the consumables move towards the throat 111.

[0046] In this embodiment, the extrusion device 11 is also provided with a nozzle 114, which is connected below the heating block 113 and is used to print products.

[0047] Working principle of Example 2:

[0048] When the printing device is printing, firstly, the consumable is placed inside the extruder 112. The motor drives the first extrusion gear 1121 to rotate. The first extrusion gear 1121 and the second extrusion gear 1122 cooperate to move the consumable towards the throat 111. After the consumable is placed inside the throat 1111, it continues to move towards the throat 111 under the action of the extruder 112. The consumable that enters the throat 111 moves towards the heating block 113. The heating block 113 is used to melt the consumable and spray it out from the nozzle 114 to print the product. Further, during the printing process of the extrusion device 11, when the temperature control probe senses that the temperature of the printing device is higher than the set temperature of the temperature control probe, cooling water enters the hose connector 124 from the water inlet 1242. The cooling water entering the hose connector 124 enters the water inlet channel of the converter head 121. The cooling water entering the converter head 121 enters the side frame 122 from the first channel 12211. Since the side frame 122 is located on the extruder 111... On one side of 12, the cooling water in the first channel 1221 moves towards the exchange head 123 to cool the extruded part 112. Furthermore, when the cooling water in the side frame 122 enters the exchange head 123, since the throat 111 is located within the first through hole 1223 of the exchange head 123, the temperature of the throat 111 is conducted to the side wall of the first through hole 1223. The cooling water in the exchange head 123 cools the side wall of the first through hole 1223, thereby achieving the effect of cooling the throat 111. As a result, when the cooling water in the exchange head 123 cools down the throat 111, the cooled water flows from the outlet pipe 125 into the outlet channel of the converter head 121, and then through the outlet channel into the outlet 1241 of the hose connector 124 for discharge, thus forming a cycle to achieve the effect of continuously cooling the extrusion device 11. This effectively prevents the throat 111 and the extruder 112 from overheating, effectively avoiding the problem of consumables softening or melting and clogging inside the throat 111, and ensuring the integrity of the printed product.

[0049] In this preferred embodiment, the water cooling device sends cooling water into the converter head when the printing equipment gets too hot during printing. The cooling water in the converter head enters the exchange head through the side plate. The exchange head cools the printing equipment, thereby preventing the printing equipment from overheating during printing and causing the consumables to soften and break during movement.

[0050] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A water-cooling device for cooling printing equipment, characterized in that, The device includes a converter for cooling water inlet and outlet, an exchange head located at one end of the converter, a side frame with both ends connected to the converter and the exchange head respectively and used to allow cooling water to flow from the converter into the exchange head, and an outlet pipe with both ends connected to the exchange head and the converter head respectively and used to allow water to flow from the exchange head into the converter. The exchange head is provided with a first through hole.

2. The water-cooling device according to claim 1, characterized in that, The converter includes an inlet channel and an outlet channel, and the outlet channel is connected to the outlet pipe; The side frame is provided with a first channel, and the two ends of the first channel are respectively connected to the water inlet channels of the exchange head and the conversion head.

3. The water-cooling device according to claim 1, characterized in that, The side frame is provided with multiple weight-reduction holes.

4. The water-cooling device according to claim 1, characterized in that, The exchange head and the side frame are integrally molded.

5. The water-cooling device according to claim 1, characterized in that, Multiple temperature control probes are installed on the side frame.

6. The water-cooling device according to claim 1, characterized in that, A cooling fan is also provided on one side of the exchange head.

7. The water-cooling device according to claim 1, characterized in that, The water outlet pipe is spaced apart from the side frame.

8. The water-cooling device according to claim 2, characterized in that, The water cooling device is also provided with a flexible hose connector that is connected to the adapter. The flexible hose connector is provided with an inlet that communicates with the water inlet channel and an outlet that communicates with the water outlet channel.

9. A printing extrusion mechanism, characterized in that, The water cooling device according to any one of claims 1-8 includes an extrusion device, the extrusion device including an extruder located on one side of the side frame, a throat located on one side of the extruder and within a first through hole of the exchange head, and a heating block connected to the throat.

10. The printing extrusion mechanism according to claim 9, characterized in that, The extruder includes a first extrusion gear for extruding consumables and a second extrusion gear located on one side of the first extrusion gear and meshing with the first extrusion gear, and a second through hole for extruding consumables to pass through is provided between the first extrusion gear and the second extrusion gear.