Hollow silicone rubber sealing element forming mold

Abstract

The utility model relates to the technical field of forming dies, in particular to a hollow silicon rubber sealing element forming die. According to the technical scheme, the mold comprises a bottom plate, a supporting plate is arranged on the bottom plate, a mold wall is fixedly connected to the upper surface of the supporting plate, an upper pressing mold is arranged above the mold wall, the mold further comprises a circular groove formed in the bottom wall of the mold wall, and an exhaust port is formed in the side, close to the circular groove, of the bottom wall of the mold wall; the exhaust port is connected with an exhaust pipe fixedly installed at the bottom of the supporting plate, and a collecting box fixedly installed on the bottom plate is arranged below the exhaust pipe. According to the utility model, the wiping and cleaning of the injection molding liquid permeating the exhaust pipe and the dredging and cleaning of the exhaust port are realized, the blockage of the exhaust port is avoided, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molding dies, in particular to a molding die for a hollow silicone rubber seal. Background Art

[0002] A die is various molds and tools used in industrial production to obtain required products by methods such as injection molding, blow molding, extrusion, die casting, or forging, smelting, stamping, etc. In order to produce good silicone rubber seals, a die is needed.

[0003] In the down - pressing molding operation of an aviation - grade silicone rubber die, in order to avoid defects such as air bubbles and cavities, which affect product quality, exhaust ports are added to the die structure to facilitate the discharge of gas in the die. However, when the injection pressure and speed are high, the injection liquid may leak from the exhaust port, which may block the exhaust port and waste raw materials, affecting the quality and output of the product. Therefore, this application proposes a molding die for a hollow silicone rubber seal. Summary of the Invention

[0004] The purpose of the utility model is to address the problem that the injection liquid leaks from the exhaust port, blocks the exhaust port, wastes raw materials, and affects product quality in the background art, and proposes a molding die for a hollow silicone rubber seal.

[0005] The technical solution of the utility model: A molding die for a hollow silicone rubber seal, including a bottom plate, a support plate is arranged on the bottom plate, the upper surface of the support plate is fixedly connected with a die wall, an upper pressing die is arranged above the die wall, and further includes:

[0006] A circular groove opened on the bottom wall of the die wall, an exhaust port is opened on one side of the bottom wall of the die wall close to the circular groove, the exhaust port is connected with an exhaust pipe fixedly installed at the bottom of the support plate, and a collection box fixedly installed on the bottom plate is arranged below the exhaust pipe;

[0007] A jacking device, which is arranged in the circular groove for the simple demoulding of the molding die;

[0008] A dredging device, which is connected to the jacking device for dealing with the injection liquid leaking from the exhaust pipe.

[0009] Optionally, a fixing frame is fixedly installed on one side of the top of the bottom plate close to the support plate, a cylinder is fixedly installed on the fixing frame, the piston rod of the cylinder is fixedly connected with the upper pressing die, and a pressing block is fixedly connected to the middle of the lower surface of the upper pressing die.

[0010] Optionally, legs fixedly connected to the bottom plate are fixedly installed at the bottom of the support plate, and lifting rods connected to the upper pressing die are fixedly installed at the top of the support plate.

[0011] Optionally, the jacking device includes a sliding rod slidably mounted on the inner wall of the circular groove. The top end of the sliding rod is fixedly connected to a top plate that fits against the bottom wall of the mold. The bottom end of the sliding rod is fixedly connected to a fixed block, and a clamping block is fixedly installed on the fixed block.

[0012] Optionally, the dredging device includes a support rod connected to the clamping block. The top end of the support rod is rotatably installed with a rotating shaft seat, and a turntable is connected to the rotating shaft seat. A plurality of dredging needles are arranged on the top of the turntable.

[0013] Optionally, a fixed rod is fixedly installed below the rotating shaft seat on the support rod. The fixed rod is fixedly connected to a circular ring, and a cotton cloth is sleeved on the circular ring. The turntable is located inside the circular ring.

[0014] Optionally, a mounting block is fixedly installed on one side of the support rod, and a card slot matching the clamping block is formed on the mounting block.

[0015] Optionally, a chute is fixedly installed on one side of the fixed frame close to the support plate. A slider is slidably installed in the chute, and an electric telescopic rod is fixedly installed on the slider. The electric telescopic rod is fixedly connected to the support rod.

[0016] Optionally, a lead screw threadedly connected to the slider is rotatably installed in the chute, and a driving motor is fixedly installed on the top of the chute. The output shaft of the driving motor is fixedly connected to the lead screw.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. By providing the clamping block, the card slot, the sliding rod, and the top plate, the sliding rod can be connected and fixed to the support rod by the clamping of the clamping block and the card slot. Cooperating with the upward movement of the slider to drive the movement of the support rod, the sliding rod can slide upward to drive the top plate to easily eject the molding die, realizing the simple demolding of the die and improving the convenience of part taking.

[0019] 2. By providing the slider, the electric telescopic rod, the support rod, the fixed rod, the turntable, the dredging needle, and the circular ring, using the telescopic adjustment of the electric telescopic rod and the upward movement of the slider, the circular ring drives the cotton cloth to wipe the injection liquid permeating the inner wall of the exhaust pipe up and down, preventing the subsequent injection liquid from drying and caking to block the exhaust port, enabling the exhaust port to maintain a normal exhaust state, and the blocked exhaust port can be dredged by using the dredging needle to top, improving the quality of the product.

[0020] The utility model realizes the wiping and cleaning of the injection liquid permeating the exhaust pipe and the dredging and cleaning of the exhaust port, avoids the blockage of the exhaust port, and improves the quality of the product. Description of the Drawings

[0021] Figure 1Schematic diagram of the structure of an embodiment of the present utility model Figure 1 ;

[0022] Figure 2 Schematic diagram of the structure of an embodiment of the present utility model Figure 2 ;

[0023] Figure 3 Schematic diagram of the internal structure of the mold wall of an embodiment of the present utility model;

[0024] Figure 4 Schematic diagram of the slider connection structure of an embodiment of the present utility model;

[0025] Figure 5 Schematic diagram of the support rod connection structure of an embodiment of the present utility model.

[0026] Reference numerals: 1, bottom plate; 2, support plate; 3, mold wall; 4, upper pressing mold; 5, circular groove; 6, exhaust port; 7, exhaust pipe; 8, collection box; 9, fixing frame; 10, cylinder; 11, lower pressing block; 12, lifting rod; 13, sliding rod; 14, top plate; 15, fixing block; 16, clamping block; 17, sliding groove; 18, driving motor; 19, lead screw; 20, slider; 21, electric telescopic rod; 22, support rod; 23, fixing rod; 24, ring; 25, cotton cloth; 26, rotating shaft seat; 27, turntable; 28, dredging needle; 29, mounting block; 30, clamping groove. Specific implementation manners

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0028] Generally, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model.

[0029] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0031] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0032] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] Embodiment

[0034] As Figure 1 and Figure 2 As shown, the hollow silicone rubber seal forming mold proposed by the present utility model includes a bottom plate 1. A support plate 2 is provided on the bottom plate 1. The upper surface of the support plate 2 is fixedly connected with a mold wall 3. An upper pressing mold 4 is provided above the mold wall 3. The mold wall 3 is used to inject liquid of aviation-grade silicone rubber so that the upper pressing mold 4 presses down to form.

[0035] In addition, legs fixedly installed on the bottom of the support plate 2 and fixedly connected with the bottom plate 1 are provided. A lifting rod 12 connected to the upper pressing mold 4 is fixedly installed on the top of the support plate 2. When the upper pressing mold 4 presses down, the lifting rod 12 descends so that the upper pressing mold 4 can press down better.

[0036] In addition, a fixing frame 9 is fixedly installed on one side of the top of the bottom plate 1 close to the support plate 2. A cylinder 10 is fixedly installed on the fixing frame 9. The piston rod of the cylinder 10 is fixedly connected to the upper pressing die 4. A lower pressing block 11 is fixedly connected to the middle of the lower surface of the upper pressing die 4. The lower pressing block 11 is matched with the die wall 3. By extending the piston rod of the cylinder 10, the liquid injected in the die wall 3 is pressed down by the lower pressing block 11 to realize the extrusion molding operation.

[0037] As Figure 2 and Figure 3 shown, the device further includes a circular groove 5 opened on the bottom wall of the die wall 3. An exhaust port 6 is opened on one side of the bottom wall of the die wall 3 close to the circular groove 5. The exhaust port 6 is connected to an exhaust pipe 7 fixedly installed at the bottom of the support plate 2. The arrangement of the exhaust port 6 facilitates the discharge of internal gas from the die wall 3, avoiding the generation of bubbles, voids, etc., which affect the product quality. A collection box 8 fixedly installed on the bottom plate 1 is arranged below the exhaust pipe 7. The collection box 8 is used to collect the injected liquid that seeps and drops, preventing the waste of raw materials.

[0038] As Figure 2 and Figure 3 shown, the device further includes a jacking device. The jacking device is arranged in the circular groove 5 for the simple demolding of the molding die. The jacking device includes a sliding rod 13 slidably installed on the inner wall of the circular groove 5. The top end of the sliding rod 13 is fixedly connected to a top plate 14 that fits the bottom wall of the die wall 3. The bottom end of the sliding rod 13 is fixedly connected to a fixing block 15. A clamping block 16 is fixedly installed on the fixing block 15. The top plate 14 can be jacked out by sliding the sliding rod 13 upward, realizing simple demolding and improving the convenience of the device.

[0039] As Figures 2 - 5 shown, the device further includes a dredging device. The dredging device is connected to the jacking device for dealing with the leakage of the injected liquid in the exhaust pipe 7. The dredging device includes a support rod 22 connected to the clamping block 16. The top end of the support rod 22 is rotatably installed with a rotating shaft seat 26. A turntable 27 is connected to the rotating shaft seat 26. A plurality of dredging needles 28 are arranged on the top of the turntable 27. Friction protrusions are arranged on the surface of the dredging needles 28. By rotating the rotating shaft seat 26, the turntable 27 rotates, the dredging needles 28 rotate, and the friction protrusions rub the inner wall of the exhaust port 6, making the dredging effect of the dredging needles 28 better;

[0040] Furthermore, a fixing rod 23 is fixedly installed on the support rod 22 below the rotating shaft seat 26. The fixing rod 23 is fixedly connected to a ring 24. The radius of the ring 24 is matched with that of the exhaust pipe 7. A cotton cloth 25 is sleeved on the ring 24. The turntable 27 is located inside the ring 24. By moving the support rod 22 up and down, the cotton cloth 25 moves up and down to wipe the injected liquid leaking from the inner wall of the exhaust pipe 7, preventing it from drying and blocking the exhaust pipe 7 subsequently;

[0041] Furthermore, an installation block 29 is fixedly installed on one side of the support rod 22. A card slot 30 matching the card block 16 is opened on the installation block 29. By means of the clamping connection between the card block 16 and the card slot 30, the connection between the support rod 22 and the sliding rod 13 is completed, which is convenient for both the realization of the jacking device and the implementation of the dredging device;

[0042] It should be noted that a sliding groove 17 is fixedly installed on the side of the fixed frame 9 close to the support plate 2. A slider 20 is slidably installed in the sliding groove 17. An electric telescopic rod 21 is fixedly installed on the slider 20. The electric telescopic rod 21 is fixedly connected to the support rod 22. A lead screw 19 threadedly connected to the slider 20 is rotatably installed in the sliding groove 17. A driving motor 18 is fixedly installed at the top of the sliding groove 17. The output shaft of the driving motor 18 is fixedly connected to the lead screw 19. By means of the elongation of the electric telescopic rod 21, the support rod 22 is driven to extend forward for adjustment, so that the ring 24 is located directly below the exhaust pipe 7. The driving motor 18 is started to rotate the lead screw 19, and the slider 20 can drive the support rod 22 to move up and down along the sliding groove 17, so that the cotton cloth 25 wipes the inner wall of the exhaust pipe 7 up and down, and the dredging needle 28 rises for dredging.

[0043] Working principle: When simple demoulding needs to be realized, the elongation of the electric telescopic rod 21 is used to drive the forward movement of the support rod 22, so that the card block 16 can be clamped into the card slot 30 to complete the fixed connection between the support rod 22 and the sliding rod 13. The driving motor 18 is started to rotate the lead screw 19, and the slider 20 drives the sliding rod 13 to slide upward, so that the top plate 14 can easily eject the extrusion-molded mold, improving the convenience of the device. When the exhaust pipe 7 needs to be dredged, the card block 16 is separated from the card slot 30, and the support rod 22 and the sliding rod 13 are separated. The contraction of the electric telescopic rod 21 is used to drive the backward movement of the support rod 22 to adjust the position of the ring 24 so that the ring 24 is directly below the exhaust pipe 7. The driving motor 18 is started again to rotate the lead screw 19, and the slider 20 drives the cotton cloth 25 to move up and down to wipe the injection liquid permeating the inner wall of the exhaust pipe 7, and the dredging needle 28 bumps up and down against the exhaust port 6 to realize the dredging of the exhaust port 6, preventing the liquid from drying into blocks later and blocking the exhaust area of the exhaust pipe 7. The rotation of the rotating shaft seat 26 drives the turntable 27 to rotate, so that the friction protrusions on the dredging needle 28 can rub against the inner wall of the exhaust port 6, making the dredging effect of the dredging needle 28 better and improving the quality of the product.

[0044] The above specific embodiments are only several alternative embodiments of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A forming mold for a hollow silicone rubber seal, comprising a bottom plate (1), a support plate (2) is arranged on the bottom plate (1), an upper surface of the support plate (2) is fixedly connected with a mold wall (3), and an upper pressing mold (4) is arranged above the mold wall (3), characterized in that, Further comprising: A circular groove (5) opened on the bottom wall of the mold wall (3), an exhaust port (6) is opened on one side of the bottom wall of the mold wall (3) close to the circular groove (5), the exhaust port (6) is connected to an exhaust pipe (7) fixedly installed at the bottom of the support plate (2), and a collection box (8) fixedly installed on the bottom plate (1) is arranged below the exhaust pipe (7); A jacking device, the jacking device is arranged in the circular groove (5) for easy demoulding of the forming mold, the jacking device includes a sliding rod (13) slidably installed on the inner wall of the circular groove (5), the top end of the sliding rod (13) is fixedly connected to a top plate (14) attached to the bottom wall of the mold wall (3), the bottom end of the sliding rod (13) is fixedly connected to a fixed block (15), and a clamping block (16) is fixedly installed on the fixed block (15); A dredging device, the dredging device is connected to the jacking device for dealing with the leakage of injection molding liquid in the exhaust pipe (7), the dredging device includes a support rod (22) connected to the clamping block (16), a rotating shaft seat (26) is rotatably installed at the top end of the support rod (22), a turntable (27) is connected to the rotating shaft seat (26), and a plurality of dredging needles (28) are arranged on the top of the turntable (27).

2. The hollow silicone rubber seal forming die according to claim 1, wherein, A fixing frame (9) is fixedly installed on one side of the top of the bottom plate (1) close to the support plate (2), a cylinder (10) is fixedly installed on the fixing frame (9), the piston rod of the cylinder (10) is fixedly connected to the upper pressing mold (4), and a lower pressing block (11) is fixedly connected to the middle of the lower surface of the upper pressing mold (4).

3. The hollow silicone rubber seal forming mold according to claim 2, wherein The bottom of the support plate (2) is fixedly installed with feet fixedly connected to the bottom plate (1), and a lifting rod (12) connected to the upper pressing mold (4) is fixedly installed on the top of the support plate (2).

4. The hollow silicone rubber seal forming die according to claim 1, characterized in that, A fixing rod (23) is fixedly installed below the rotating shaft seat (26) of the support rod (22), the fixing rod (23) is fixedly connected to a ring (24), a cotton cloth (25) is sleeved on the ring (24), and the turntable (27) is located inside the ring (24).

5. The hollow silicone rubber seal forming mold according to claim 1, wherein An installation block (29) is fixedly installed on one side of the support rod (22), and a clamping groove (30) matching the clamping block (16) is opened on the installation block (29).

6. The hollow silicone rubber seal forming die according to claim 2, wherein, A sliding groove (17) is fixedly installed on one side of the fixing frame (9) close to the support plate (2), a slider (20) is slidably installed in the sliding groove (17), an electric telescopic rod (21) is fixedly installed on the slider (20), and the electric telescopic rod (21) is fixedly connected to the support rod (22).

7. The hollow silicone rubber seal forming die according to claim 6, characterized in that A lead screw (19) threadedly connected to the slider (20) is rotatably installed in the sliding groove (17), and a driving motor (18) is fixedly installed on the top of the sliding groove (17), and the output shaft of the driving motor (18) is fixedly connected to the lead screw (19).

Images