Mold for molding silica gel product

Abstract

The utility model discloses a mold for forming a silica gel product, which belongs to the field of molds, and comprises an upper mold, a lower mold arranged on the bottom surface of the upper mold, and an arranged demolding mechanism, after the silica gel product is formed in a mold cavity, a driving motor is started to drive an output end to drive a bidirectional screw rod to rotate through a first rotating rod; the symmetrical movable blocks move relatively along the two-way screw rod through the screw holes in the side walls, the connecting rod is forced to incline to jack the upper mold upwards, the upper mold moves upwards along the guide rod through the sliding sleeve, and therefore the purpose of rapid mold opening between the upper mold and the lower mold is achieved; along with movement of the movable block, the side plate enters the bottom groove through the side opening, the extrusion plate on the top face of the side plate extrudes the pressed disc, the pressed disc moves upwards after being extruded, the reset spring is forced to do retraction operation, and then the ejector rod is pushed to eject the silica gel product out of the mold cavity after the ejector rod is ejected out of the ejector hole.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a mold for molding silicone products. Background Art

[0002] Molds are the various molds and tools used in industrial production to produce desired products through methods such as injection molding, blow molding, extrusion, die-casting, forging, smelting, and stamping. Simply put, a mold is a tool used to create a shaped object. This tool is composed of various parts, and different molds are made up of different parts. It primarily shapes the object by changing the physical state of the material being molded. It is often called the "mother of industry."

[0003] In the prior art, silicone products often require the use of molds during the production and processing process, and the silicone products are processed and formed into the required specific shapes through the molds. However, in the actual use of the existing molds for silicone product molding, after the silicone product is molded in the mold, the staff needs to complete the mold opening operation of the upper and lower molds. After the upper and lower molds are opened and separated, the staff uses special tools to hook the silicone product molded in the mold cavity and separate it from the mold cavity, so as to complete the demolding operation of the molded silicone product. This not only brings inconvenience to the mold opening operation, but also makes it difficult to quickly remove the silicone product, thereby reducing the work efficiency in the production and processing of silicone products. Utility Model Content

[0004] The main purpose of the utility model is to provide a mold for forming silicone products, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A mold for forming silicone products, comprising an upper mold and a lower mold arranged on the bottom surface of the upper mold, the bottom of the lower mold is provided with a demoulding mechanism, and the demoulding mechanism includes a base, a guide rod, a pressure plate, a reset spring, a bidirectional screw, a drive motor, a movable block, a concave block, a connecting rod, a side plate and an extrusion plate, the lower mold is fixedly connected to the top surface of the base, and the top surface of the base is fixedly connected to two groups of symmetrical guide rods, the upper mold is movably connected to the base through sliding sleeves on both sides, the pressure plate is movably connected to the inside of the lower mold through ejector rods on four sides of the top surface, and the reset spring is sleeved on the On the outside of the ejector rod, the bidirectional screw is movably connected to the top surface of the base through the first rotating rods at both ends, the driving motor is fixedly connected to the left side of the base, and the output end of the driving motor is fixedly connected to the first rotating rod, the two movable blocks are movably connected to the bidirectional screws through the screw holes on the side walls, and the top surface of the movable block and the two sides of the upper mold are respectively fixedly connected with concave blocks, the connecting rod is movably connected between the concave blocks through the second rotating rods on both sides of the upper and lower ends, the side plate is fixedly connected to the inner side wall of the concave block on the top surface of the movable block, and the top surface of the side plate is also fixedly installed with an extrusion plate.

[0007] Preferably, a mold cavity is provided on the top surface of the lower mold, and ejection holes are provided on four sides of the inner bottom surface of the mold cavity, a bottom groove is provided on the bottom surface of the lower mold, and side openings are provided on the bottom of both side walls of the lower mold.

[0008] Preferably, ejector rods are fixedly installed on the four sides of the top surface of the pressure plate, and the ejector rods are inserted into the ejection holes. A return spring is sheathed on the outside of the rod body of the ejector rod, and the return spring is fixedly installed between the top surface of the pressure plate and the top surface of the bottom groove.

[0009] Preferably, a group of symmetrical guide rods are fixedly installed on the left and right sides of the top surface of the base, and sliding sleeves are fixedly installed on the left and right side walls of the upper mold, and the sliding sleeves are movably mounted on the guide rods. A groove is provided on the top surface of the base, and sliding grooves are provided on both sides of the inner wall of the groove, and first rotating holes are also provided on the two end walls of the inner groove.

[0010] Preferably, the left and right ends of the bidirectional screw are respectively fixedly mounted with a first rotating rod, and the first rotating rod is movably mounted in the first rotating hole, the driving motor is fixedly mounted on the left side wall of the base, and the output end of the driving motor is fixedly mounted together with the first rotating rod at the left end, screw holes are respectively opened on the side walls of the two movable blocks and are threadedly connected to the bidirectional screw through the screw holes, and sliders are also fixedly mounted on the two side walls of the movable block and movably mounted in the sliding groove.

[0011] Preferably, concave blocks are fixedly installed on the top surface of the movable block and the left and right side walls of the upper mold, and second rotating holes are respectively opened on both sides of the inner wall of the notch of the concave block, and second rotating rods are fixedly installed on both sides of the upper and lower ends of the connecting rod, and the second rotating rods are movably installed in the second rotating holes, and the side plates are fixedly installed on the inner side walls of the concave block on the top surface of the movable block, and an extrusion plate is also fixedly installed on the inner side of the top surface of the side plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The utility model provides a demoulding mechanism. After the silicone product is formed in the mold cavity, the driving motor is turned on to drive the output end to rotate the bidirectional screw through the first rotating rod, so that the symmetrical movable blocks are relatively moved along the bidirectional screw through the screw holes on the side walls, and the connecting rod is forced to tilt to lift the upper mold upward, so that the upper mold moves upward along the guide rod through the sliding sleeve, thereby achieving the purpose of rapid mold opening between the upper mold and the lower mold. At the same time, during the mold opening process, as the movable block moves, the side plate will enter the bottom groove through the side opening, and the extrusion plate on the top surface of the side plate will squeeze the pressure plate. After being squeezed, the pressure plate will move upward and force the return spring to retract, pushing the ejector rod to eject the ejector rod from the ejection hole, and in the process, the molded silicone product is ejected from the mold cavity, thereby achieving the purpose of rapid demoulding of the silicone product, thereby not only facilitating the mold opening operation between the upper mold and the lower mold, but also completing the demoulding operation during the mold opening process, thereby improving the work efficiency in the production and processing of silicone products. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the overall structure of the upper mold of the present utility model;

[0017] Figure 4 This is a schematic diagram of the overall structure of the lower mold of the present invention;

[0018] Figure 5 It is a schematic cross-sectional view of the base of the utility model;

[0019] Figure 6 This is a schematic diagram of the structural disassembly of the demoulding mechanism of the present invention.

[0020] In the figure: 1. Upper mold; 2. Lower mold; 3. Demolding mechanism; 4. Sliding sleeve; 5. Cavity; 6. Ejector hole; 7. Bottom groove; 8. Side opening; 9. Base; 10. Guide rod; 11. Groove; 12. Slide; 13. First rotating hole; 14. Pressure plate; 15. Ejector rod; 16. Return spring; 17. Bidirectional screw; 18. First rotating rod; 19. Driving motor; 20. Movable block; 21. Screw hole; 22. Sliding block; 23. Concave block; 24. Second rotating hole; 25. Connecting rod; 26. Second rotating rod; 27. Side plate; 28. Extrusion plate. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1 - Figure 6 As shown, a mold for forming silicone products comprises an upper mold 1 and a lower mold 2 arranged on the bottom surface of the upper mold 1, a demoulding mechanism 3 is provided at the bottom of the lower mold 2, and the demoulding mechanism 3 comprises a base 9, a guide rod 10, a pressure plate 14, a return spring 16, a bidirectional screw 17, a drive motor 19, a movable block 20, a concave block 23, a connecting rod 25, a side plate 27 and an extrusion plate 28, the lower mold 2 is fixedly connected to the top surface of the base 9, and the top surface of the base 9 is fixedly connected with two groups of symmetrical guide rods 10, the upper mold 1 is movably connected to the base 9 through the sliding sleeves 4 on both sides, the pressure plate 14 is movably connected to the inside of the lower mold 2 through the ejection rods 15 on the four sides of the top surface, and the return spring 16 It is sleeved on the outside of the ejector rod 15, and the bidirectional screw 17 is movably connected to the top surface of the base 9 through the first rotating rods 18 at both ends. The drive motor 19 is fixedly connected to the left side of the base 9, and the output end of the drive motor 19 is fixedly connected to the first rotating rod 18. The two movable blocks 20 are movably connected to the bidirectional screw 17 through the screw holes 21 on the side walls, and the top surface of the movable block 20 and the two sides of the upper mold 1 are respectively fixedly connected with concave blocks 23, the connecting rod 25 is movably connected between the concave blocks 23 through the second rotating rods 26 on both sides of the upper and lower ends, the side plate 27 is fixedly connected to the inner side wall of the concave block 23 on the top surface of the movable block 20, and the top surface of the side plate 27 is also fixedly installed with an extrusion plate 28.

[0023] like Figure 4As shown, a mold cavity 5 is formed on the top surface of the lower mold 2, and ejection holes 6 are formed on the four sides of the inner bottom surface of the mold cavity 5. A bottom groove 7 is formed on the bottom surface of the lower mold 2, and side openings 8 are formed on the bottom of the two side walls of the lower mold 2. The ejection holes 6 provided in the mold cavity 5 allow the ejection rod 15 to enter the mold cavity 5 to eject the silicone product, and the bottom groove 7 and side openings 8 provided on the lower mold 2 allow the side plate 27 and the extrusion plate 28 installed on the side plate 27 to enter the bottom groove 7 through the side openings 8 to squeeze the pressure plate 14.

[0024] like Figure 6 As shown, ejector rods 15 are fixedly installed on the four sides of the top surface of the pressure plate 14, and the ejector rods 15 are inserted into the ejection hole 6. A return spring 16 is sleeved on the outside of the rod body of the ejector rod 15, and the return spring 16 is fixedly installed between the top surface of the pressure plate 14 and the top surface of the bottom groove 7. After being squeezed by the squeezing plate 28, the pressure plate 14 will move upward in the bottom groove 7, and force the return spring 16 sleeved on the outside of the ejector rod 15 to retract. At the same time, the ejector rod 15 is pushed so that the ejector rod 15 enters the mold cavity 5 through the ejection hole 6, and the silicone product formed in the mold cavity 5 is ejected upward, so as to achieve rapid demolding of the silicone product.

[0025] like Figure 5 and Figure 6 As shown, a group of symmetrical guide rods 10 are fixedly installed on the left and right sides of the top surface of the base 9, and sliding sleeves 4 are fixedly installed on the left and right side walls of the upper mold 1, and the sliding sleeves 4 are movably sleeved on the guide rods 10. A groove 11 is provided on the top surface of the base 9, and sliding grooves 12 are provided on both sides of the inner wall of the groove 11. First rotating holes 13 are also provided on the inner end walls of the groove 11. Through the guide rod 10 on the top surface of the base 9, the upper mold 1 can move along the guide rod 10 through the sliding sleeve 4 when the mold is opened, and the groove 11, the sliding groove 12 and the first rotating hole 13 are also provided, so that the first rotating rod 18 can drive the bidirectional screw 17 to rotate in the groove 11 after rotating in the first rotating hole 13, and make the sliders 22 on both sides of the movable block 20 slide in the sliding groove 12;

[0026] like Figure 5As shown, the left and right ends of the bidirectional screw 17 are respectively fixedly mounted with a first rotating rod 18, and the first rotating rod 18 is movably mounted in the first rotating hole 13, the driving motor 19 is fixedly mounted on the left side wall of the base 9, and the output end of the driving motor 19 is fixedly mounted together with the first rotating rod 18 at the left end, the side walls of the two movable blocks 20 are respectively provided with screw holes 21 and are threadedly connected with the bidirectional screw 17 through the screw holes 21, and the two side walls of the movable block 20 are also respectively fixedly mounted with sliders 22 and movably mounted in the slide groove 12. When the upper mold 1 and the lower mold 2 are opened and demolded, the driving motor 19 is turned on to drive the output end to drive the first rotating rod 18 to rotate in the first rotating hole 13, so that the first rotating rod 18 drives the bidirectional screw 17 to rotate in the groove 11, so that the symmetrical movable blocks 20 respectively pass through the screw holes 21 opened on the side walls to make relative movement operations along the bidirectional screw 17 in the groove 11, and the sliders 22 on both sides of the movable block 20 slide in the slide groove 12;

[0027] like Figure 4 and Figure 6 As shown, concave blocks 23 are fixedly installed on the top surface of the movable block 20 and the left and right side walls of the upper mold 1, and second rotating holes 24 are respectively opened on both sides of the inner wall of the recess of the concave block 23. Second rotating rods 26 are fixedly installed on both sides of the upper and lower ends of the connecting rod 25, and the second rotating rod 26 is movably installed in the second rotating hole 24. The side plate 27 is fixedly installed on the inner side wall of the concave block 23 on the top surface of the movable block 20, and the extrusion plate 28 is also fixedly installed on the inner side of the top surface of the side plate 27. Because the second rotating rods 26 installed on both sides of the upper and lower ends of the connecting rod 25 are respectively movably installed in the second rotating holes 24 opened on both sides of the inner wall of the recess of the concave block 23 on the top surface of the movable block 20 Therefore, driven by the movement of the movable block 20, the second rotating rod 26 will rotate in the second rotating hole 24, and the connecting rod 25 will tilt. At the same time, the angle formed between the left and right symmetrical connecting rods 25 will gradually become smaller, and in the process of this change, the upper mold 1 will be pushed to move upward, so that the upper mold 1 moves along the guide rod 10 through the sliding sleeve 4 to complete the mold opening operation between the upper mold 1 and the lower mold 2. In the mold opening process, as the movable block 20 is displaced, the side plate 27 and the extrusion plate 28 on the top surface will enter the bottom groove 7 through the side opening 8, and squeeze the pressure plate 14 in the bottom groove 7 to complete the demoulding operation. In this way, the demoulding operation can be completed after the mold is opened, which can improve work efficiency.

[0028] It should be noted that the present invention is a mold for forming silicone products. After the silicone product is formed in the mold cavity 5, the drive motor 19 installed on the left side of the base 9 is turned on. The drive motor 19 drives the output end to drive the first rotating rod 18 to rotate in the first rotating holes 13 opened at both ends of the inner wall of the groove 11, and the first rotating rod 18 drives the bidirectional screw 17 to rotate in the groove 11 opened on the top surface of the base 9. At this time, the left and right symmetrical movable blocks 20 will respectively make relative movement operations in the groove 11 along the bidirectional screw 17 through the screw holes 21 opened on the side walls, and the sliders 2 installed on both sides of the movable block 20 during movement. 2 will slide in the slide grooves 12 opened on both sides of the inner wall of the groove 11. At this time, because the second rotating rods 26 installed on both sides of the upper and lower ends of the connecting rod 25 are movably installed in the second rotating holes 24 opened on both sides of the upper mold 1 and the inner wall of the concave block 23 on the top surface of the movable block 20, the second rotating rods 26 will rotate in the second rotating holes 24 under the movement of the movable block 20, and the connecting rods 25 will tilt. At the same time, the angle formed by the left and right symmetrical connecting rods 25 will gradually decrease, and in the process of this change, the upper mold 1 will be pushed upward, so that the upper mold 1 passes through the sliding sleeve 4 along the The guide rod 10 moves to complete the mold opening operation between the upper mold 1 and the lower mold 2, and in the process of mold opening, as the movable block 20 continues to move inward, the side plates 27 installed on the inner side walls of the concave block 23 on the top surface of the movable block 20 and the extrusion plates 28 on the top surface of the side plates 27 will enter the bottom groove 7 through the side openings 8 opened at the bottom of both sides of the lower mold 2, and squeeze the pressure plate 14 in the bottom groove 7 through the extrusion plates 28, so that the pressure plate 14 moves upward, and in the process of moving upward, the return spring 16 is forced to retract, and at the same time, the ejector rod 15 is pushed so that the ejector rod 15 enters the mold cavity 5 through the ejection hole 6 to close the mold. The silicone product formed in the cavity 5 is ejected to complete the demolding operation of the molded silicone product, which not only facilitates the mold opening operation between the upper mold 1 and the lower mold 2, but also can complete the demolding operation during the mold opening process, which can improve the work efficiency in the production and processing of silicone products. Finally, the upper mold 1 is merged into the lower mold 2 through the mold opening and demolding mechanism 3 for the mold closing operation, and in the mold closing process, when the extrusion plate 28 gradually moves away from the bottom of the pressure plate 14, the return spring 16 will perform a recovery extension operation and push the pressure plate 14 downward to make the ejection rod 15 re-enter the ejection hole 6, so as to facilitate the subsequent production of the silicone mold.

[0029] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, various improvements may be made to the present invention and its components may be replaced with equivalents, or some of its technical features may be replaced with equivalents without departing from the scope of the present invention. Anything within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mold for forming a silicone product, comprising an upper mold (1) and a lower mold (2) arranged on the bottom surface of the upper mold (1), characterized in that: The bottom of the lower mold (2) is provided with a demoulding mechanism (3), and the demoulding mechanism (3) includes a base (9), a guide rod (10), a pressure plate (14), a return spring (16), a bidirectional screw (17), a drive motor (19), a movable block (20), a concave block (23), a connecting rod (25), a side plate (27) and an extrusion plate (28). The lower mold (2) is fixedly connected to the top surface of the base (9), and the top surface of the base (9) is fixedly connected with two groups of symmetrical guide rods (10). The upper mold (1) is movably connected to the base (9) through the sliding sleeves (4) on both sides. The pressure plate (14) is movably connected to the inside of the lower mold (2) through the ejection rods (15) on the four sides of the top surface, and the return spring (16) is sleeved on the outside of the ejection rod (15). The screw rod (17) is movably connected to the top surface of the base (9) through the first rotating rods (18) at both ends. The driving motor (19) is fixedly connected to the left side of the base (9), and the output end of the driving motor (19) is fixedly connected to the first rotating rod (18). The two movable blocks (20) are movably connected to the bidirectional screw rod (17) through the screw holes (21) on the side walls, and the top surface of the movable block (20) and the two sides of the upper mold (1) are fixedly connected with concave blocks (23). The connecting rod (25) is movably connected between the concave blocks (23) through the second rotating rods (26) on both sides of the upper and lower ends. The side plate (27) is fixedly connected to the inner side wall of the concave block (23) on the top surface of the movable block (20), and the top surface of the side plate (27) is also fixedly installed with an extrusion plate (28).

2. A mold for forming silicone products according to claim 1, characterized in that: The top surface of the lower mold (2) is provided with a mold cavity (5), and the four sides of the inner bottom surface of the mold cavity (5) are respectively provided with ejection holes (6), the bottom surface of the lower mold (2) is provided with a bottom groove (7), and the bottoms of the two side walls of the lower mold (2) are respectively provided with side openings (8).

3. A mold for forming silicone products according to claim 2, characterized in that: Ejector rods (15) are fixedly mounted on four sides of the top surface of the pressure plate (14), and the ejector rods (15) are inserted into the ejector holes (6). A return spring (16) is sleeved on the outside of the rod body of the ejector rod (15), and the return spring (16) is fixedly mounted between the top surface of the pressure plate (14) and the top surface of the bottom groove (7).

4. A mold for forming silicone products according to claim 3, characterized in that: A group of symmetrical guide rods (10) are fixedly mounted on the left and right sides of the top surface of the base (9), and a sliding sleeve (4) is fixedly mounted on the left and right side walls of the upper mold (1), and the sliding sleeve (4) is movably mounted on the guide rods (10). A groove (11) is provided on the top surface of the base (9), and sliding grooves (12) are provided on both sides of the inner wall of the groove (11), and first rotating holes (13) are also provided on the inner end walls of the groove (11).

5. A mold for forming silicone products according to claim 4, characterized in that: The left and right ends of the bidirectional screw (17) are respectively fixedly mounted with a first rotating rod (18), and the first rotating rod (18) is movably mounted in the first rotating hole (13). The driving motor (19) is fixedly mounted on the left side wall of the base (9), and the output end of the driving motor (19) is fixedly mounted together with the first rotating rod (18) at the left end. The side walls of the two movable blocks (20) are respectively provided with screw holes (21) and are threadedly connected to the bidirectional screw (17) through the screw holes (21). Slide blocks (22) are also fixedly mounted on the two side walls of the movable block (20) and are movably mounted in the slide groove (12).

6. The mold for forming silicone products according to claim 5, characterized in that: Concave blocks (23) are fixedly mounted on the top surface of the movable block (20) and the left and right side walls of the upper mold (1), and second rotation holes (24) are respectively opened on both sides of the inner wall of the notch of the concave block (23). Second rotation rods (26) are fixedly mounted on both sides of the upper and lower ends of the connecting rod (25), and the second rotation rods (26) are movably mounted in the second rotation holes (24). The side plate (27) is fixedly mounted on the inner side wall of the concave block (23) on the top surface of the movable block (20), and an extrusion plate (28) is also fixedly mounted on the inner side of the top surface of the side plate (27).

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