High-gloss traceless plastic double-color mold

Abstract

The utility model relates to the field of double-color molds, and discloses a highlight traceless plastic double-color mold which comprises a bottom plate, a lifting plate is arranged above the bottom plate, an upper mold is fixed on the bottom surface of the lifting plate, a lower mold is fixed on the top surface of the bottom plate, and a fixing ring is fixed on the top surface of the bottom plate. A threaded column is rotatably inserted into the fixing ring, a threaded hole is formed in the top face of the lifting plate, the threaded column is in threaded connection with the threaded hole, a rotating disc is fixed to the top end of the threaded column, a bearing is fixed into the fixing ring, and the inner wall face of an inner ring of the bearing is fixed to the surface of the threaded column. And two injection molding holes are formed in one side of the upper mold. According to the utility model, the lifting plate moves up and down by utilizing the threaded connection of the threaded column and the threaded hole, so that the mold closing state between the upper mold and the lower mold can be kept for a long time after the threaded column stops rotating, the internal plastic material can be solidified and formed, and the yield is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of two-color molds, in particular to a high-gloss and traceless plastic two-color mold. Background Art

[0002] Two-color mold refers to a plastic part with a clear boundary between the two colors of plastic. The molding method of using two or more injection systems to inject different types or colors of plastic into the mold simultaneously or successively is called two-color injection molding, and the mold used is called a two-color injection molding mold.

[0003] According to the Chinese patent with publication number: CN213919313U, a two-color plastic mold for automobile interior decoration parts includes a lower mold and an upper mold located above the lower mold, the bottom wall of the lower mold is installed with a lower template, the top wall of the lower template is provided with guide rods near the four corners, the bottom end of the guide rod is provided with a buffer mechanism, the buffer mechanism includes a spring seat, a spring is installed on the spring seat, a pressure cap is welded to the top end of the spring, a guide hole is opened inside the pressure cap, the size of the guide rod is matched with the size of the guide hole, the top wall of the upper mold is installed with an upper template, the interior of the upper template is provided with round holes at the four corners, and sleeves are welded in the round holes, and the sleeves are slidably plugged on the guide rods.

[0004] In the above scheme, a buffer mechanism and a sleeve are used to alleviate the impact force of the upper and lower molds, but it still has the following disadvantages: after the upper mold and the lower mold are closed, the closed state cannot be maintained for a long time to wait for the plastic material inside to solidify, resulting in the inability to form the mold, thereby reducing the yield rate. Utility Model Content

[0005] The purpose of the utility model is to provide a high-gloss and traceless plastic two-color mold to solve the problem that the mold cannot be kept in a closed state for a long time to wait for the plastic material inside to solidify, resulting in the inability to produce and shape, and reducing the yield rate.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a high-gloss and seamless plastic two-color mold, including a base plate, a lifting plate is arranged above the base plate, an upper mold is fixed to the bottom surface of the lifting plate, a lower mold is fixed to the top surface of the base plate, a fixing ring is fixed to the top surface of the base plate, a threaded column is rotatably inserted inside the fixing ring, a threaded hole is provided on the top surface of the lifting plate, the threaded column is threadedly connected to the threaded hole, a rotating disk is fixed to the top of the threaded column, a bearing is fixed inside the fixing ring, the inner wall surface of the inner ring of the bearing is fixed to the surface of the threaded column, and two injection holes are provided on one side of the upper mold.

[0007] Preferably, two stabilizing rods are fixed on the top surface of the bottom plate, two sleeve holes are provided on the top surface of the lifting plate, the sleeve holes are slidably inserted with the stabilizing rods, and a blocking plate is fixed on the top end of the stabilizing rods.

[0008] Preferably, a sealing frame is fixed to the bottom surface of the upper mold, a sealing groove is formed on the top surface of the lower mold, and the sealing frame and the sealing groove are interference fit.

[0009] Preferably, a fixing column is fixed on the top surface of the rotating disk, a rotating sleeve is rotatably inserted on the surface of the fixing column, and a blocking block is fixed on the top end of the fixing column.

[0010] Preferably, sliding grooves are respectively provided on both sides of the interior of the lower mold, a sliding folding plate is detachably provided inside the sliding groove, limiting grooves are respectively provided on both sides of the interior of the sliding groove, connecting strips are respectively fixed on both sides of the sliding folding plate, and the connecting strips and the limiting grooves are slidably arranged.

[0011] Preferably, a probe groove is provided on the top surface of the sliding folding plate, and an extraction groove is provided on one side inside the probe groove.

[0012] Compared with the prior art, a high-gloss and seamless plastic two-color mold using the above technical solution has the following beneficial effects:

[0013] 1. The staff will first close the upper mold and the lower mold. During the closing process, the staff will first rotate the rotating disk clockwise. The rotating rotating disk will drive the threaded column to rotate inside the threaded hole. During the rotation process, the threaded column will use the threaded connection with the threaded hole to drive the lifting plate to move toward the bottom plate, which can drive the upper mold and the lower mold to close together. After closing the mold, two kinds of plastic materials are respectively injected into the upper mold and the lower mold through the two injection holes. Since the lifting plate moves up and down by the threaded connection between the threaded column and the threaded hole, when the threaded column stops rotating, the closing state between the upper mold and the lower mold can be maintained for a long time, ensuring that the internal plastic material can be solidified and formed, increasing the yield rate;

[0014] 2. When rotating the threaded column, the staff will first hold their hands on the surface of the rotating sleeve, and then rotate with the threaded column as the center of the circle, which can easily drive the threaded column to rotate. When the upper mold and the lower mold are closed, the sealing frame will be squeezed into the inside of the sealing groove, which can increase the sealing between the upper mold and the lower mold and reduce the defect rate of the finished product after injection molding;

[0015] 3. After the injection molding is completed, the staff will rotate the rotating disk counterclockwise, and use the threaded connection of the threaded column and the threaded hole to move the lifting plate upward to separate the upper mold and the lower mold. After separation, the staff will put their fingers into the probe groove and use the extraction groove to apply an upward force to the sliding folding plate to assist the staff in taking the finished product out of the mold, which increases the convenience of the staff's operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 It is an exploded perspective schematic diagram of an embodiment.

[0018] Figure 3 It is an exploded schematic diagram of the sealing groove and the sealing frame in the embodiment.

[0019] Figure 4 for Figure 3 A schematic diagram of the enlarged local structure in the middle.

[0020] In the figure: 1. bottom plate; 2. lifting plate; 3. upper mold; 4. lower mold; 5. fixing ring; 6. threaded column; 7. threaded hole; 8. rotating disk; 9. bearing; 10. injection hole; 11. sleeve hole; 12. stabilizing rod; 13. blocking plate; 14. sealing groove; 15. sealing frame; 16. sliding groove; 17. sliding folding plate; 18. limiting groove; 19. connecting strip; 20. probe groove; 21. extraction groove; 22. fixing column; 23. rotating sleeve; 24. blocking block. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1 and Figure 2 As shown, a high-gloss and seamless plastic two-color mold includes a base plate 1, a lifting plate 2 is arranged above the base plate 1, an upper mold 3 is fixed to the bottom surface of the lifting plate 2, a lower mold 4 is fixed to the top surface of the base plate 1, a fixing ring 5 is fixed to the top surface of the base plate 1, a threaded column 6 is rotatably inserted inside the fixing ring 5, a threaded hole 7 is provided on the top surface of the lifting plate 2, the threaded column 6 is threadedly connected to the threaded hole 7, a rotating disk 8 is fixed to the top of the threaded column 6, a bearing 9 is fixed inside the fixing ring 5, the inner wall surface of the inner ring of the bearing 9 is fixed to the surface of the threaded column 6, and two injection holes 10 are provided on one side of the upper mold 3.

[0023] During use, the staff will first close the upper mold 3 and the lower mold 4. During the closing process, the staff will first rotate the rotating disk 8 clockwise, and the rotating rotating disk 8 will drive the threaded column 6 to rotate inside the threaded hole 7. During the rotation, the threaded column 6 will use the threaded connection with the threaded hole 7 to drive the lifting plate 2 to move toward the bottom plate 1, which can drive the upper mold 3 and the lower mold 4 to be closed together, and after closing the mold, the two plastic materials will be respectively injected into the upper mold 3 and the lower mold 4 through the two injection holes 10. Since the lifting plate 2 moves up and down by the threaded connection between the threaded column 6 and the threaded hole 7, when the threaded column 6 stops rotating, the closing state between the upper mold 3 and the lower mold 4 can be maintained for a long time, ensuring that the internal plastic material can be solidified and formed, thereby increasing the yield rate.

[0024] like Figure 1-Figure 3 As shown, two stabilizing rods 12 are fixed to the top surface of the base plate 1, and two sleeve holes 11 are provided on the top surface of the lifting plate 2. The sleeve holes 11 are slidably inserted with the stabilizing rods 12, and a blocking plate 13 is fixed to the top of the stabilizing rods 12. A sealing frame 15 is fixed to the bottom surface of the upper mold 3, and a sealing groove 14 is provided on the top surface of the lower mold 4. The sealing frame 15 and the sealing groove 14 are interference fit. A fixed column 22 is fixed to the top surface of the rotating disk 8, and a rotating sleeve 23 is rotatably inserted on the surface of the fixed column 22, and a blocking block 24 is fixed to the top of the fixed column 22.

[0025] During use, when the staff rotates the threaded column 6, the staff will first hold the surface of the rotating sleeve 23 with their hands, and then rotate with the threaded column 6 as the center, which can drive the threaded column 6 to rotate more conveniently. When the upper mold 3 and the lower mold 4 are closed, the sealing frame 15 will be squeezed into the interior of the sealing groove 14, which can increase the sealing between the upper mold 3 and the lower mold 4 and reduce the defect rate of the finished product after injection molding.

[0026] like Figure 3 and Figure 4 As shown, sliding grooves 16 are respectively provided on both sides of the interior of the lower mold 4, and a sliding folding plate 17 is detachably provided inside the sliding groove 16. Limiting grooves 18 are respectively provided on both sides of the interior of the sliding groove 16, and connecting strips 19 are respectively fixed on both sides of the sliding folding plate 17. The connecting strip 19 and the limiting groove 18 are slidably arranged, and a probe groove 20 is provided on the top surface of the sliding folding plate 17, and an extraction groove 21 is provided on one side of the interior of the probe groove 20.

[0027] During use, after the injection molding is completed, the staff will rotate the rotating disk 8 counterclockwise, and use the threaded connection between the threaded column 6 and the threaded hole 7 to move the lifting plate 2 upward to separate the upper mold 3 and the lower mold 4. After separation, the staff will insert their fingers into the probe groove 20 and use the extraction groove 21 to apply an upward force to the sliding folding plate 17, which can assist the staff in taking the finished product out of the mold, increasing the convenience of the staff's operation.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-gloss and seamless plastic two-color mold, comprising a base plate (1), characterized in that: A lifting plate (2) is arranged above the bottom plate (1), an upper mold (3) is fixed on the bottom surface of the lifting plate (2), a lower mold (4) is fixed on the top surface of the bottom plate (1), a fixing ring (5) is fixed on the top surface of the bottom plate (1), a threaded column (6) is rotatably inserted inside the fixing ring (5), a threaded hole (7) is provided on the top surface of the lifting plate (2), the threaded column (6) is threadedly connected to the threaded hole (7), a rotating disk (8) is fixed on the top of the threaded column (6), a bearing (9) is fixed inside the fixing ring (5), the inner wall surface of the inner ring of the bearing (9) is fixed to the surface of the threaded column (6), and two injection holes (10) are provided on one side of the upper mold (3).

2. A high-gloss and seamless plastic two-color mold according to claim 1, characterized in that: Two stabilizing rods (12) are fixed on the top surface of the bottom plate (1), two sleeve holes (11) are provided on the top surface of the lifting plate (2), the sleeve holes (11) and the stabilizing rods (12) are slidably inserted, and a blocking plate (13) is fixed on the top end of the stabilizing rods (12).

3. The high-gloss and seamless plastic two-color mold according to claim 1, characterized in that: A sealing frame (15) is fixed to the bottom surface of the upper mold (3), a sealing groove (14) is provided on the top surface of the lower mold (4), and the sealing frame (15) and the sealing groove (14) are interference fit.

4. The high-gloss and seamless plastic two-color mold according to claim 1, characterized in that: A fixing column (22) is fixed on the top surface of the rotating disk (8), a rotating sleeve (23) is rotatably inserted into the surface of the fixing column (22), and a blocking block (24) is fixed on the top end of the fixing column (22).

5. The high-gloss and seamless plastic two-color mold according to claim 1, characterized in that: Sliding grooves (16) are respectively provided on both sides of the interior of the lower mold (4), a sliding folding plate (17) is detachably provided inside the sliding groove (16), limiting grooves (18) are respectively provided on both sides of the interior of the sliding groove (16), connecting strips (19) are respectively fixed on both sides of the sliding folding plate (17), and the connecting strips (19) and the limiting grooves (18) are slidably arranged.

6. The high-gloss and seamless plastic two-color mold according to claim 5, characterized in that: The top surface of the sliding folding plate (17) is provided with an insertion groove (20), and an extraction groove (21) is provided on one side of the interior of the insertion groove (20).

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