A sealing cover mold

Abstract

The present invention provides a sealing cover mold, which includes a runner plate, an upper template, a mold lifting frame, a lower template and a mold core; the runner plate, the upper template, the mold lifting frame and the lower template are arranged in sequence from top to bottom. An upper mold cavity is provided at the bottom of the upper template, and a lower mold cavity is provided at the top of the lower template. A mold cavity is formed by the cooperation between the upper mold cavity and the lower mold cavity. In the closed mold state, the mold core is assembled in the mold cavity, and a cavity is formed by the cooperation between the mold core and the mold cavity; the mold core includes a fixed mold core and a movable mold core which are movably and cooperatively connected. A cross beam and a sliding rod movable relative to the cross beam are provided on the mold lifting frame. The fixed mold core is connected to the cross beam and the movable mold core is connected to the sliding rod. The structure of the present invention is reasonable, the required materials and production costs are low, the processing cycle is short, the efficiency is high, the qualified rate of the products made is high, and the service life of the mold is greatly extended.

Description

Technical Field

[0001] The present invention relates to the technical field of molds, and particularly to a seal cover mold. Background Art

[0002] The rubber material used for the seal cover is ethylene propylene rubber, but the ethylene propylene rubber has poor hot tear resistance. This characteristic causes it to be difficult to forcibly demold during the vulcanization molding of the ethylene propylene rubber. In the existing seal cover mold, the cavity part of the mold core is large inside and small outside, and it is difficult to demold the product and it is more likely to be pulled off, making it very difficult to produce qualified products. In addition, the existing seal cover mold has a complex structure, and there are multiple undercuts on the upper and lower molds, which are not easy to process and require the use of inserts for fitting. However, in the existing seal cover mold, the inserts are directly fitted into the upper and lower molds, and the inserts are prone to interfere with each other, affecting the installation, and urgent improvement is needed. Summary of the Invention

[0003] Based on the technical problems existing in the background art, the present invention proposes a seal cover mold.

[0004] A seal cover mold proposed by the present invention includes a runner plate, an upper template, a mold lifting frame, a lower template and a mold core; the runner plate, the upper template, the mold lifting frame and the lower template are arranged in sequence from top to bottom. An upper mold cavity is provided at the bottom of the upper template, a lower mold cavity is provided at the top of the lower template, and a mold cavity is formed by the cooperation between the upper mold cavity and the lower mold cavity. In the closed mold state, the mold core is assembled in the mold cavity, and a cavity is formed by the cooperation between the mold core and the mold cavity; the mold core includes a fixed mold core and a movable mold core that are movably connected in cooperation. A cross beam and a sliding rod that can move relative to the cross beam are provided on the mold lifting frame. The fixed mold core is connected to the cross beam and the movable mold core is connected to the sliding rod.

[0005] Preferably, sliding rods parallel to it are provided on both sides of the cross beam, and a plurality of mold cores are provided between the cross beam and the two sliding rods.

[0006] Preferably, positioning columns are provided at both ends of the cross beam, installation grooves are opened at the positions of both ends of the mold lifting frame where the cross beam is located, the two positioning columns are respectively located in the two installation grooves, and pressing plates are provided at the upper and lower positions of the positioning columns in the installation grooves, and the two pressing plates are fixed on the mold lifting frame.

[0007] Preferably, sliding grooves are opened at the positions of both ends of the mold lifting frame where the sliding rod is located, and both ends of the sliding rod are slidably connected to the two sliding grooves in cooperation.

[0008] Preferably, the fixed mold core includes a first fixed mold core and a second fixed mold core. The first fixed mold core is fixed on the cross beam. A jack is opened on the side of the first fixed mold core away from the cross beam. The second fixed mold core is provided with a plug rod inserted into the jack, and a spring pressed by the plug rod is provided in the jack. The first fixed mold core is connected to the plug rod through a shoulder bolt.

[0009] Preferably, it further includes a first upper die insert and a second upper die insert. An upper die mating groove is formed at the bottom of the upper template, and a first upper die groove and a second upper die groove, which are located on both sides of the upper die mating groove and communicate with the upper die mating groove, are provided. A first inclined surface is arranged on one side of the upper die mating groove close to the second upper die groove. The first upper die insert and the second upper die insert are both inserted into the upper die mating groove and the first upper die insert abuts against the second upper die insert. A second inclined surface adapted to the first inclined surface is arranged on the second upper die insert away from the first upper die insert. A first insert groove and a second insert groove are respectively arranged on the first upper die insert and the second upper die insert. The first upper die groove, the first insert groove, the second insert groove, and the second upper die groove cooperate to form an upper die cavity.

[0010] Preferably, it further includes a first lower die insert and a second lower die insert. A lower die mating groove is formed at the top of the lower template, and a first lower die groove and a second lower die groove, which are located on both sides of the lower die mating groove and communicate with the lower die mating groove, are provided. The lower die mating groove is arranged corresponding to the upper die mating groove. A third inclined surface is arranged on one side of the lower die mating groove close to the second lower die groove. The first lower die insert and the second lower die insert are both inserted into the lower die mating groove and the first lower die insert abuts against the second lower die insert. A fourth inclined surface adapted to the third inclined surface is arranged on the second lower die insert away from the first lower die insert. A third insert groove and a fourth insert groove are respectively arranged on the first lower die insert and the second lower die insert. The first lower die groove, the third insert groove, the fourth insert groove, and the second lower die groove cooperate to form a lower die cavity.

[0011] Preferably, a positioning pin is arranged at the top end of the cross beam, and a positioning hole adapted to the positioning pin is arranged at the bottom end of the upper template. In the mold closing state, the positioning pin is inserted into the positioning hole.

[0012] For a sealing cover mold proposed by the present invention, when the mold is demolded, the runner plate upper template is opened, and the lifting mold frame lifts the mold core. At this time, the product is separated from the upper template and the lower template and adheres to the mold core. The sliding rod drives the moving mold core to move away from the product, and at this time, the product can be easily taken out.

[0013] To further facilitate the separation of the product, the first fixed mold core and the second fixed mold core are connected by a shoulder bolt, which can accurately control the moving distance of the mold core to solve the problem that the product cannot be demolded due to undercut; a spring is added at the connection of the first fixed mold core and the second fixed mold core. After the upper and lower molds of the mold are separated, the first fixed mold core and the second fixed mold core can be automatically separated, which is convenient for product demolding, improves the product quality, and extends the service life of the mold.

[0014] The first upper die insert and the second upper die insert of the present invention are in inclined plane fit. First, the first upper die insert is assembled into the upper die fitting groove, and then the second upper die insert is placed. The first upper die insert is pressed and assembled in place through the inclined plane fit of the second upper die insert. Similarly, the first lower die insert and the second lower die insert are in inclined plane fit. First, the first lower die insert is assembled into the lower die fitting groove, and then the second lower die insert is placed. The first lower die insert is pressed and assembled in place through the inclined plane fit of the second lower die insert.

[0015] The structure of the present invention is reasonable, with low material requirements and production costs, short processing cycles, high efficiency, high qualified rates of the products produced, and greatly extended service life of the mold. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a sealing cover mold proposed by the present invention;

[0017] Figure 2 It is Figure 1 the sectional view taken along the line A-A in

[0018] Figure 3 It is Figure 1 the sectional view taken along the line B-B in

[0019] Figure 4 It is a schematic structural diagram of the upper template in a sealing cover mold proposed by the present invention;

[0020] Figure 5 It is a schematic structural diagram of the lower template in a sealing cover mold proposed by the present invention. Detailed Embodiments

[0021] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention is provided in conjunction with the drawings of the specification. Obviously, the described embodiments are a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0022] Referring to Figures 1-5 , the present invention proposes a sealing cover mold, including a runner plate 1, an upper template 2, a mold lifting frame 3, a lower template 4, and a mold core 5; where:

[0023] The runner plate 1, the upper template 2, the mold lifting frame 3, and the lower template 4 are arranged in sequence from top to bottom. The bottom of the upper template 2 is provided with an upper mold cavity, and the top of the lower template 4 is provided with a lower mold cavity. The upper mold cavity and the lower mold cavity cooperate to form a mold cavity. In the closed mold state, the mold core 5 is assembled in the mold cavity, and the mold core 5 and the mold cavity cooperate to form a cavity;

[0024] The mold core 5 includes a fixed mold core and a movable mold core 51 that are movably and cooperatively connected. A cross beam 31 and a slide bar 32 that can move relative to the cross beam 31 are provided on the mold lifting frame 3. The fixed mold core is connected to the cross beam 31 and the movable mold core 51 is connected to the slide bar 32. The fixed mold core includes a first fixed mold core 52 and a second fixed mold core 53. The first fixed mold core 52 is fixed on the cross beam 31. A jack is provided on the side of the first fixed mold core 52 away from the cross beam 31. The second fixed mold core 53 is provided with a plug rod inserted into the jack, and a spring pressed by the plug rod is provided in the jack. The first fixed mold core 52 is connected to the plug rod through a shoulder bolt 54.

[0025] In this embodiment, when the mold ejects the mold, the runner plate 1 and the upper template 2 are opened, and the mold lifting frame 3 lifts the mold core 5. At this time, the product is separated from the upper template 2 and the lower template 4 and adheres to the mold core 5. The slide bar 32 drives the movable mold core 51 to move away from the product, and at this time, the product can be easily taken out;

[0026] To further facilitate the separation of the product, the first fixed mold core 52 and the second fixed mold core 53 are connected by a shoulder bolt 54, which can accurately control the moving distance of the mold core to solve the problem that the product cannot be demolded due to undercuts; a spring is added at the connection between the first fixed mold core and the second fixed mold core. After the upper and lower molds of the mold are separated, the first fixed mold core and the second fixed mold core can be automatically separated, which facilitates the demolding of the product, improves the product quality, and extends the service life of the mold.

[0027] In a further embodiment, slide bars 32 parallel to it are provided on both sides of the cross beam 31, and a plurality of mold cores 5 are provided between the cross beam 31 and the two slide bars 32;

[0028] Positioning columns 32 are provided at both ends of the cross beam 31. Installation grooves are provided at the positions of both ends of the mold lifting frame 3 where the cross beam 31 is located. The two positioning columns 32 are respectively located in the two installation grooves, and pressure plates 33 are provided at the upper and lower positions of the positioning columns 32 in the installation grooves, and the two pressure plates 33 are fixed on the mold lifting frame 3; a positioning pin 35 is provided at the top of the cross beam 31, and a positioning hole 21 adapted to the positioning pin 35 is provided at the bottom end of the upper template 2. In the mold closing state, the positioning pin 35 is inserted into the positioning hole 21;

[0029] The mold lifting frame 3 is provided with sliding grooves at both ends of the slide bar 32, and the two ends of the slide bar 32 are respectively slidably and cooperatively connected with the two sliding grooves;

[0030] Refer to Figure 3, in a further embodiment, it further includes a first upper die insert 6 and a second upper die insert 7. A upper die fitting groove is formed at the bottom of the upper template 2, and a first upper die groove and a second upper die groove which are located on both sides of the upper die fitting groove and communicate with the upper die fitting groove are provided. A first inclined surface is provided on one side of the upper die fitting groove close to the second upper die groove. The first upper die insert 6 and the second upper die insert 7 are both fitted in the upper die fitting groove and the first upper die insert 6 abuts against the second upper die insert 7. A second inclined surface adapted to the first inclined surface is provided on the second upper die insert 7 away from the first upper die insert 6. The first upper die insert 6 and the second upper die insert 7 are respectively provided with a first insert groove and a second insert groove. The first upper die groove, the first insert groove, the second insert groove, and the second upper die groove cooperate to form an upper die cavity.

[0031] Refer to Figure 3 , in a further embodiment, it further includes a first lower die insert 8 and a second lower die insert 9. A lower die fitting groove is formed at the top of the lower template 4, and a first lower die groove and a second lower die groove which are located on both sides of the lower die fitting groove and communicate with the lower die fitting groove are provided. The lower die fitting groove is correspondingly arranged with the upper die fitting groove. A third inclined surface is provided on one side of the lower die fitting groove close to the second lower die groove. The first lower die insert 8 and the second lower die insert 9 are both fitted in the lower die fitting groove and the first lower die insert 8 abuts against the second lower die insert 9. A fourth inclined surface adapted to the third inclined surface is provided on the second lower die insert 9 away from the first lower die insert 8. The first lower die insert 8 and the second lower die insert 9 are respectively provided with a third insert groove and a fourth insert groove. The first lower die groove, the third insert groove, the fourth insert groove, and the second lower die groove cooperate to form a lower die cavity.

[0032] The first upper die insert 6 and the second upper die insert 7 are in inclined surface fit. First, the first upper die insert 6 is assembled into the upper die fitting groove, and then the second upper die insert 7 is placed. The first upper die insert 6 is pressed and assembled in place through the inclined surface fit of the second upper die insert 7. Similarly, the first lower die insert 8 and the second lower die insert 9 are in inclined surface fit. First, the first lower die insert 8 is assembled into the lower die fitting groove, and then the second lower die insert 9 is placed. The first lower die insert 8 is pressed and assembled in place through the inclined surface fit of the second lower die insert 9.

[0033] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A sealing cover mold, characterized in that, it includes a runner plate (1), an upper template (2), a mold lifting frame (3), a lower template (4) and a mold core (5); the runner plate (1), the upper template (2), the mold lifting frame (3), and the lower template (4) are arranged in sequence from top to bottom. An upper mold cavity is provided at the bottom of the upper template (2), and a lower mold cavity is provided at the top of the lower template (4). The upper mold cavity and the lower mold cavity cooperate to form a mold cavity. In the closed mold state, the mold core (5) is assembled in the mold cavity, and the mold core (5) and the mold cavity cooperate to form a cavity; the mold core (5) includes a fixed mold core and a movable mold core (51) that are movably connected. A cross beam (31) and a sliding rod (32) that can move relative to the cross beam (31) are provided on the mold lifting frame (3). The fixed mold core is connected to the cross beam (31), and the movable mold core (51) is connected to the sliding rod (32); The fixed mold core includes a first fixed mold core (52) and a second fixed mold core (53). The first fixed mold core (52) is fixed on the cross beam (31). A jack is provided on the side of the first fixed mold core (52) away from the cross beam (31). The second fixed mold core (53) is provided with a plug rod inserted into the jack, and a spring pressed by the plug rod is provided in the jack. The first fixed mold core (52) is connected to the plug rod through a shoulder bolt (54); It also includes a first upper mold insert (6) and a second upper mold insert (7). An upper mold insert groove and a first upper mold groove and a second upper mold groove located on both sides of the upper mold insert groove and communicating with the upper mold insert groove are provided at the bottom of the upper template (2). A first inclined surface is provided on one side of the upper mold insert groove close to the second upper mold groove. The first upper mold insert (6) and the second upper mold insert (7) are both inserted into the upper mold insert groove and the first upper mold insert (6) abuts against the second upper mold insert (7). A second inclined surface adapted to the first inclined surface is provided on the side of the second upper mold insert (7) away from the first upper mold insert (6). The first upper mold insert (6) and the second upper mold insert (7) are respectively provided with a first insert groove and a second insert groove. The first upper mold groove, the first insert groove, the second insert groove, and the second upper mold groove cooperate to form the upper mold cavity.

2. The sealing cover mold according to claim 1, characterized in that, sliding rods (32) parallel to it are provided on both sides of the cross beam (31), and multiple mold cores (5) are provided between the cross beam (31) and the two sliding rods (32).

3. The sealing cover mold according to claim 1, characterized in that, positioning columns are provided at both ends of the cross beam (31). Installation grooves are provided at both ends of the mold lifting frame (3) where the cross beam (31) is located. The two positioning columns are respectively located in the two installation grooves, and pressure plates (33) are provided at the upper and lower positions of the positioning columns in the installation grooves, and the two pressure plates (33) are fixed on the mold lifting frame (3).

4. The sealing cover mold according to claim 1, characterized in that, chute grooves are provided at both ends of the mold lifting frame (3) where the sliding rods (32) are located, and both ends of the sliding rods (32) are slidably connected to the two chute grooves.

5. The sealing cover mold according to claim 1, characterized in that, It further includes a first lower die insert (8) and a second lower die insert (9). The top of the lower template (4) is provided with a lower die mating groove, a first lower die groove and a second lower die groove which are located on both sides of the lower die mating groove and communicate with the lower die mating groove. The lower die mating groove is correspondingly arranged with the upper die mating groove. A third inclined surface is arranged on one side of the lower die mating groove close to the second lower die groove. The first lower die insert (8) and the second lower die insert (9) are both inserted into the lower die mating groove and the first lower die insert (8) abuts against the second lower die insert (9). A fourth inclined surface adapted to the third inclined surface is arranged on the second lower die insert (9) away from the first lower die insert (8). The first lower die insert (8) and the second lower die insert (9) are respectively provided with a third insert groove and a fourth insert groove. The first lower die groove, the third insert groove, the fourth insert groove and the second lower die groove cooperate to form a lower die cavity.

6. The seal cover mold according to claim 1, characterized in that, a positioning pin (35) is arranged at the top of the cross beam (31), a positioning hole (21) adapted to the positioning pin (35) is arranged at the bottom end of the upper template (2), and in the mold closing state, the positioning pin (35) is inserted into the positioning hole (21).

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