Rapid forming precision medical injection mold with heat dissipation structure

Abstract

The utility model discloses a rapid prototyping precision medical injection mold with a heat dissipation structure, which comprises an injection upper mold and an injection bottom mold, the injection upper mold is arranged above the injection bottom mold, the rapid prototyping precision medical injection mold also comprises a heat dissipation mechanism, the heat dissipation mechanism comprises a water box, a trapezoidal strip block, a butt-joint pipe, a slow flow box, a liquid inlet pipe, a liquid discharge pipe, a support frame and an L-shaped pin, according to the precise medical injection mold, the rectangular groove and the trapezoidal strip groove are formed in the injection molding bottom mold of the precise medical injection mold to be matched with the heat dissipation mechanism, and the water box of the heat dissipation mechanism can be clamped in the rectangular groove, so that a large solid structure of the injection molding bottom mold is changed into a cavity mold body capable of dissipating heat; after the slow flow box communicated with the water box is connected to the cooling liquid circulation pipeline of the mold temperature controller, cooling liquid can be introduced into the water box to assist the periphery of the mold body of the injection molding bottom mold in heat dissipation, mold cooling can be well achieved through cooperation with a cooling water channel in the injection molding bottom mold, and it is guaranteed that the injection molding bottom mold can be rapidly cooled and formed when precise medical injection molding parts are produced.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a rapid prototyping precision medical injection mold with a heat dissipation structure. Background Technology

[0002] Injection molds are used in the injection molding process to solidify molten plastic into specific sizes and shapes. Unlike blow molds and extrusion molds, precision medical components are typically produced using injection molds. Currently, when injection molding precision medical components, the injection mold uses its own cooling channels in conjunction with a mold temperature controller to control the temperature of the mold body.

[0003] Currently, when precision medical injection molds are used to injection mold plastic parts, the cooling of the mold mainly relies on the cooling water channels inside the mold to enter the cooling medium for cooling. However, the water channel structure of the mold is mostly located outside the mold body near the mold cavity, and the thick shell of the mold has a poor heat dissipation effect. Relying solely on the water channels of the mold itself can no longer meet the heat dissipation requirements of rapid prototyping of precision medical parts. Therefore, we propose a rapid prototyping precision medical injection mold with a heat dissipation structure. Utility Model Content

[0004] The main objective of this invention is to provide a rapid prototyping precision medical injection mold with a heat dissipation structure. A rectangular groove and a trapezoidal groove are provided at the injection base of the precision medical injection mold to accommodate a heat dissipation mechanism. The water box of the heat dissipation mechanism can be fitted into the rectangular groove, thereby transforming the large solid structure of the injection base mold into a hollow cavity mold body capable of heat dissipation. A flow-retardant box connected to the water box is connected to the cooling liquid circulation pipeline of the mold temperature controller. Cooling liquid can flow into the water box to assist in heat dissipation around the mold body of the injection base mold. Combined with the cooling water channels within the injection base mold, this effectively achieves mold cooling, ensuring rapid heat dissipation and molding during the production of precision medical injection molded parts, thus effectively solving the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A rapid prototyping precision medical injection mold with a heat dissipation structure includes an upper injection mold and a lower injection mold. The upper injection mold is mounted above the lower injection mold. It also includes a heat dissipation mechanism comprising a water tank, trapezoidal blocks, connecting pipes, a flow buffer, an inlet pipe, an outlet pipe, a support frame, and L-shaped feet. The lower injection mold has rectangular grooves recessed on four sides near its cavity for mounting the water tank, and the groove walls are recessed for mounting the trapezoidal blocks. The trapezoidal groove of the strip block is integrally formed on the surface of the water box wall. The side wall of the water box exposed from the rectangular groove is connected to the slow flow box with a connecting pipe. The outer wall of the slow flow box away from the connecting pipe is connected to the inlet pipe and the outlet pipe. The bottom wall of the slow flow box is pressed against the surface of the support frame, and the support frame covers the injection mold bottom mold. The inner frame wall of the support frame has an L-shaped joint protruding upward, and the L-shaped joint is locked to the injection mold bottom mold with bolts.

[0007] Furthermore, threaded holes are provided on the surface of the vertical foot plate of the L-shaped connector and the injection mold bottom mold, and an internal hex bolt is screwed between the threaded holes on the surface of the L-shaped connector and the injection mold bottom mold.

[0008] By adopting the above technical solution, the vertical foot plate of the L-shaped connector and the injection mold bottom have threaded holes that can be screwed on with hexagonal bolts.

[0009] Furthermore, a groove is recessed on the surface of the frame plate near the flow-retarding box, and a retaining strip is welded to the bottom wall of the flow-retarding box for engaging the groove.

[0010] By adopting the above technical solution, the support frame is positioned and supported by the fixed groove and the fixed strip of the slow flow box.

[0011] Furthermore, a U-shaped connecting cavity is provided in the inner wall of the water box cavity, recessed into the trapezoidal strip;

[0012] By adopting the above technical solution, the U-shaped connecting cavity of the water box assists the cooling liquid to enter the trapezoidal strip for heat dissipation.

[0013] Furthermore, a gap is maintained between the inner wall of the bracket opening and the injection mold, and four sets of L-shaped feet protrude from the bracket opening.

[0014] By adopting the above technical solution, the support frame can be smoothly locked outside the injection mold, and then the support frame can be locked outside the injection mold with four sets of L-shaped feet to obtain support.

[0015] Furthermore, the inlet pipe and outlet pipe are provided with threaded inner walls, and the inlet pipe and outlet pipe are welded and interconnected with the slow-flow box;

[0016] By adopting the above technical solution, after the inlet pipe and outlet pipe are welded and interconnected with the slow-flow box, the pipe opening with the threaded inner wall can be screwed to the external pipe that provides cooling liquid.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention utilizes a rectangular groove and a trapezoidal groove in the injection base of a precision medical injection mold to install a heat dissipation mechanism. The water box of the heat dissipation mechanism can be fitted into the rectangular groove, thereby transforming the large solid structure of the injection base mold into a hollow cavity mold body capable of heat dissipation. After the slow-flow box connected to the water box is connected to the cooling liquid circulation pipeline of the mold temperature controller, cooling liquid can be introduced into the water box to assist in heat dissipation around the mold body of the injection base mold. Combined with the cooling water channels inside the injection base mold, the mold can be cooled effectively, ensuring that the injection base mold can quickly dissipate heat and form during the production of precision medical injection molded parts.

[0019] Furthermore, the support frame of the heat dissipation mechanism can be installed outside the injection molding bottom mold to position and support the slow flow box of the outer connecting cylinder of the water box. After the cooling liquid flowing into the water box is buffered by the slow flow box, the impact damage of the thin-walled water box to the cooling liquid is reduced. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a rapid prototyping precision medical injection mold with a heat dissipation structure according to the present invention.

[0021] Figure 2 This is a schematic diagram showing the heat dissipation mechanism and the injection bottom mold of a rapid prototyping precision medical injection mold with a heat dissipation structure according to the present invention.

[0022] Figure 3 This is an exploded view of the heat dissipation mechanism of a rapid prototyping precision medical injection mold with a heat dissipation structure according to the present invention.

[0023] Figure 4 This is a cross-sectional view of a water box in a rapid prototyping precision medical injection mold with a heat dissipation structure according to this utility model.

[0024] In the diagram: 1. Upper injection mold; 2. Bottom injection mold; 3. Rectangular groove; 4. Trapezoidal groove; 5. Heat dissipation mechanism; 6. Water box; 7. Trapezoidal strip; 8. U-shaped connecting cavity; 9. Connecting pipe; 10. Flow buffer box; 11. Liquid inlet pipe; 12. Liquid outlet pipe; 13. Support frame; 14. L-shaped connector; 15. Fixed groove; 16. Fixed strip. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1-4As shown, a rapid prototyping precision medical injection mold with a heat dissipation structure includes an upper injection mold 1 and an injection bottom mold 2. The upper injection mold 1 is installed above the injection bottom mold 2. It also includes a heat dissipation mechanism 5, which includes a water box 6, trapezoidal strips 7, connecting pipes 9, a flow buffer box 10, an inlet pipe 11, an outlet pipe 12, a support frame 13, and L-shaped connectors 14. The injection bottom mold 2 has rectangular grooves 3 recessed on four sides near its cavity for mounting the water box 6, and the groove walls of the rectangular grooves 3 are recessed for mounting the trapezoidal strips. The trapezoidal groove 4 of block 7 is integrally formed on the surface of the box wall of water box 6, and the side box wall of water box 6 exposed from the rectangular groove 3 is connected and fixed with the slow flow box 10 by a connecting pipe 9. The outer box wall of the slow flow box 10 away from the connecting pipe 9 is connected and fixed with an inlet pipe 11 and a drain pipe 12. The bottom box wall of the slow flow box 10 is pressed against the surface of the support frame 13, and the support frame 13 covers the injection mold 2. The inner frame wall of the support frame 13 has an L-shaped joint 14 protruding upward, and the L-shaped joint 14 is locked to the injection mold 2 by bolts.

[0027] The vertical foot plate of the L-shaped connector 14 and the surface of the injection mold 2 are provided with threaded holes, and an internal hex bolt is screwed between the L-shaped connector 14 and the threaded holes on the surface of the injection mold 2.

[0028] By adopting the above technical solution, the vertical foot plate of the L-shaped connector 14 and the injection mold 2 have threaded holes that can be screwed on with hexagonal bolts.

[0029] The frame plate surface of the support frame 13 near the slow flow box 10 is recessed with a fixed groove 15, and a fixed strip 16 for engaging the fixed groove 15 is welded to the bottom wall of the slow flow box 10.

[0030] By adopting the above technical solution, the support frame 13 is positioned and supported by the fixed groove 15 and the fixed strip 16 of the slow flow box 10.

[0031] Among them, a U-shaped connecting cavity 8 is provided in the inner wall of the water box 6, which is recessed into the trapezoidal strip 7;

[0032] By adopting the above technical solution, the U-shaped connecting cavity 8 at the cavity of the water box 6 assists the cooling liquid to enter the trapezoidal strip 7 for heat dissipation.

[0033] The inner wall of the frame opening of the bracket 13 is spaced from the injection mold 2, and four sets of L-shaped feet 14 protrude from the frame opening of the bracket 13.

[0034] By adopting the above technical solution, the support frame 13 can be smoothly locked outside the injection mold 2, and then the support frame 13 can be locked outside the injection mold 2 with four sets of L-shaped feet 14 to obtain support.

[0035] The inlet pipe 11 and outlet pipe 12 are provided with threaded inner walls at their openings, and the inlet pipe 11 and outlet pipe 12 are welded and interconnected with the slow-flow box 10.

[0036] By adopting the above technical solution, after the liquid inlet pipe 11 and the liquid outlet pipe 12 are welded and interconnected with the slow flow box 10, the pipe opening with the threaded inner wall can be screwed to the external pipe that provides cooling liquid.

[0037] It should be noted that this utility model is a rapid prototyping precision medical injection mold with a heat dissipation structure. After setting a rectangular groove 3 and a trapezoidal strip groove 4 at the injection bottom mold 2 of the precision medical injection mold, the heat dissipation mechanism 5 can be assembled at the injection bottom mold 2 below the injection upper mold 1. First, the water box 6 of the heat dissipation mechanism 5, with the trapezoidal strip 7, can be snapped into the rectangular groove 3 with the trapezoidal strip groove 4 in the injection bottom mold 2. Then, the support frame 13 is pushed up from the bottom of the injection bottom mold 2, so that the fixing strip 16 on the surface of the support frame 13 is snapped into position with the fixing strip 16 of the flow buffer box 10. Then, the support frame 13 is fitted with four sets of L-shaped joints 14. The bolts are tightened on the outside of the injection mold 2 to support the flow box 10. At this time, the flow box 10, which is connected to the water box 6, is connected to the cooling liquid circulation pipeline of the mold temperature controller through the liquid inlet pipe 11 and the liquid outlet pipe 12 and some commonly used threaded connection pipes. The cooling pipeline of the mold temperature controller can pass cooling liquid into the flow box 10 and the water box 6, so that the cooling liquid carries away the heat of the water box 6 and the injection mold 2. After the injection mold 2 is set with a four-sided cavity structure, the original solid part of the injection mold 2 is modified to have more heat dissipation cavities, thereby effectively assisting the efficient heat dissipation of the injection mold body around the mold body.

[0038] It should be noted that this utility model is a rapid prototyping precision medical injection mold with a heat dissipation structure. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rapid prototyping precision medical injection mold with a heat dissipation structure, comprising an upper injection mold (1) and a lower injection mold (2), wherein the upper injection mold (1) is mounted above the lower injection mold (2), characterized in that: It also includes a heat dissipation mechanism (5), which includes a water box (6), a trapezoidal strip (7), a connecting pipe (9), a slow-flow box (10), an inlet pipe (11), an outlet pipe (12), a support frame (13), and an L-shaped connector (14). The injection molding bottom mold (2) has rectangular grooves (3) for mounting the water box (6) on four sides near its own cavity. The groove wall of the rectangular groove (3) has a trapezoidal groove (4) for mounting the trapezoidal strip (7). The trapezoidal strip (7) is integrally formed on the box of the water box (6). The side wall of the water box (6) exposed in the rectangular groove (3) is connected to the slow flow box (10) by a connecting pipe (9). The outer wall of the slow flow box (10) away from the connecting pipe (9) is connected to the inlet pipe (11) and the outlet pipe (12). The bottom wall of the slow flow box (10) is pressed against the surface of the support frame (13), and the support frame (13) covers the injection mold (2). The inner frame wall of the support frame (13) has an L-shaped joint (14) protruding upward, and the L-shaped joint (14) is locked to the injection mold (2) by bolts.

2. The rapid prototyping precision medical injection mold with a heat dissipation structure according to claim 1, characterized in that: The vertical foot plate of the L-shaped connector (14) and the surface of the injection mold (2) are provided with threaded holes, and an internal hex bolt is screwed between the threaded holes on the surface of the L-shaped connector (14) and the injection mold (2).

3. The rapid prototyping precision medical injection mold with a heat dissipation structure according to claim 1, characterized in that: The frame (13) near the slow flow box (10) has a recessed groove (15) on its frame plate surface, and a retaining strip (16) for inserting into the groove (15) is welded to the bottom wall of the slow flow box (10).

4. The rapid prototyping precision medical injection mold with a heat dissipation structure according to claim 1, characterized in that: The water box (6) has a U-shaped connecting cavity (8) recessed into the trapezoidal strip (7) on the inner wall of the box cavity.

5. A rapid prototyping precision medical injection mold with a heat dissipation structure according to claim 1, characterized in that: The inner wall of the bracket (13) is spaced from the injection mold (2), and four sets of L-shaped feet (14) protrude from the inner wall of the bracket (13).

6. A rapid prototyping precision medical injection mold with a heat dissipation structure according to claim 1, characterized in that: The inlet pipe (11) and outlet pipe (12) are provided with threaded inner walls at their openings, and the inlet pipe (11) and outlet pipe (12) are welded and interconnected with the slow-flow box (10).

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