A router plastic cover injection molding mold

Abstract

The utility model provides a router plastic cover injection molding mold, including an upper mold and a lower mold. After the upper mold and the lower mold are molded together, a cavity for casting a router plastic upper cover and a router plastic lower cover is formed. The utility model also includes a core pulling structure and a straight top assembly. The core pulling structure includes a core pulling seat, a driving rod and a core pulling rod. One end of the core pulling rod is arranged on the core pulling seat, and the other end is inserted into the cavity for forming the inner circular hole of the buckle cover. The core pulling seat slides on the lower mold along the length direction of the core pulling rod. One end of the driving rod is arranged on the upper mold, and the other end is obliquely inserted into the core pulling seat; the straight top assembly is used to remove the router plastic upper cover and the router plastic lower cover from the lower mold. When it is necessary to open the mold, the upper mold drives the driving rod and then drives the core pulling seat to move, so that the core pulling rod is automatically pulled out from the buckle cover after molding, which increases the degree of automation and facilitates the demoulding of the router plastic lower cover.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to an injection molding mold for a router plastic cover. Background Art

[0002] Router plastic covers are often used to protect the internal hardware structure. It prevents dust, moisture, dirt and other foreign matter from entering the interior of the router, thereby reducing the risk of damage or corrosion to the internal hardware.

[0003] Related art router plastic cover such as Figure 1 As shown, a plurality of sleeves 81 and a reinforcing rib grid 82 are provided on one side of the router plastic upper cover 8, and a rotating shaft 83 for rotationally connecting with the router plastic lower cover 9 is provided on one side.

[0004] Related art router plastic bottom cover such as Figure 2 As shown, a reinforcing rib network 92 is provided on one side of the router plastic lower cover 9, and a buckle cover 91 for rotationally connecting with the router plastic upper cover 8 is provided on one side. The operator buckles the buckle cover 91 on the rotating shaft 83, so that the router plastic lower cover 9 is rotationally connected to the router plastic upper cover 8.

[0005] The above-mentioned related technical solutions have the following defects: since the buckle cover is provided with a round hole for the shaft, and the forming of the round hole requires a core pull rod to be installed in the mold before work, the core pull rod needs to be pulled out after the mold is opened before the plastic lower cover of the router can be demoulded, which makes the operation steps cumbersome and affects the work efficiency. Utility Model Content

[0006] The present application provides an injection molding mold for a router plastic cover, which has the effect of facilitating demoulding of the router plastic lower cover.

[0007] The invention provides a router plastic cover injection molding mold adopting the following technical solution:

[0008] A router plastic cover injection molding mold, including an upper mold and a lower mold. After the upper mold and the lower mold are molded together, a cavity for casting a router plastic upper cover and a router plastic lower cover is formed. The mold also includes a core pulling structure and a straight top assembly. The core pulling structure includes a core pulling seat, a driving rod and a core pulling rod. One end of the core pulling rod is arranged on the core pulling seat, and the other end is inserted into the cavity for forming a circular hole inside the buckle cover. The core pulling seat slides on the lower mold along the length direction of the core pulling rod. One end of the driving rod is arranged on the upper mold, and the other end is obliquely inserted into the core pulling seat. When the mold is opened, the driving rod moves along the mold opening direction together with the upper mold to drive the core pulling seat to move toward one end away from the core pulling rod. The straight top assembly is used to remove the router plastic upper cover and the router plastic lower cover from the lower mold.

[0009] Through the above technical solution, when the mold needs to be opened, the upper mold drives the driving rod and then drives the core puller to move, so that the core puller is automatically pulled out from the formed buckle cover, which increases the degree of automation and facilitates the demoulding of the plastic lower cover of the router.

[0010] Preferably, a plurality of inserts are relatively arranged on the upper die and the lower die, and countersunk grooves are formed on the plurality of inserts. The countersunk grooves are used to cooperate with bolts to install the inserts, and the inserts are used to form the outer side of the rotating shaft and the buckle cover.

[0011] Through the above technical solution, the inserts are fixed to the upper and lower dies by bolts, and the operator can replace the damaged and old parts in time to improve the accuracy of the shaft and the outer side of the buckle cover to facilitate subsequent installation operations.

[0012] Preferably, the core pulling seat includes a slider, a fixed block and a sealing ring, the slider slides on the lower mold along the length direction of the core pulling rod, and the fixed block is fixed to the top surface of the slider by bolts; the slider and the fixed block cooperate to open a core pulling hole, the core pulling hole is trapezoidal, and the core pulling rod is arranged in the core pulling hole; the sealing ring is sleeved on the core pulling rod, the outer side of the sealing ring is attached to the inner side of the core pulling hole and has an interference fit with the core pulling hole, and the inner side of the sealing ring has an interference fit with the core pulling rod.

[0013] Through the above technical solution, the core pulling seat is split into a slider and a fixed block, which are detachably fixed by bolts, so that the operator can replace the core pulling rod. The design of the sealing ring allows the operator to adapt to core pulling rods of different diameters by changing the thickness of the sealing ring, thereby facilitating the adjustment of the buckle cover size and reducing the impact of the buckle cover being too large or too small on the appearance and practicality.

[0014] Preferably, a cooling pipe is inserted in the lower mold, and a cooling hole matching the cooling pipe is opened on the slider, and the cooling hole completely passes through the slider and is parallel to the length direction of the core pulling rod.

[0015] Through the above technical scheme, the setting of the cooling pipe and the cooling hole first ensures the cooling of the core pulling seat during operation, and secondly, when the slider slides, the cooling pipe can limit the deflection of the slider in the vertical direction of the length of the core pulling rod, and after the driving rod is completely pulled out, the friction between the cooling pipe and the cooling hole can reduce the tendency of the slider to move and increase stability.

[0016] Preferably, the straight top assembly includes a first straight top structure, a second straight top structure and a power source, the first straight top structure includes a plurality of first straight top rods and a first top plate, one end of the plurality of first straight top rods is arranged on the first top plate, and the other end passes through the lower mold and abuts against the bottom surface of the router plastic upper cover and the router plastic lower cover respectively, and is used to form a sleeve, a reinforcing rib grid and a reinforcing rib network; the second straight top structure includes a plurality of second straight top rods and a second top plate, the second top plate is arranged above the first top plate, the second top plate is provided with an avoidance hole for the first straight top rod to pass through, one end of the second straight top rod is arranged below the second top plate, and the other end passes through the second top plate and abuts against the bottom surface of the side edge of the router plastic lower cover; the power source is used to drive the first top plate and the second top plate to move along the mold opening and closing direction.

[0017] Through the above technical solution, when the mold is opened, the power source drives the first straight ejector rod and the second straight ejector rod to move along the mold opening direction to eject the router plastic upper cover and the router plastic lower cover from the lower mold; multiple first straight ejector rods are used to accurately form the sleeve and the reinforcing rib grid, thereby improving the molding quality of the product; and the second straight ejector rod and the first straight ejector rod act together on the router plastic lower cover during the mold opening process, thereby providing a balanced demolding force and avoiding damage to the snap cover due to poor mold opening.

[0018] Preferably, a side groove is formed on one end of the core pulling rod away from the core pulling seat, and the side groove abuts against the mold cavity.

[0019] Through the above technical solution, the core pulling rod creates a notch by abutting the side groove against the cavity, so as to facilitate the buckle cover to be buckled onto the rotating shaft.

[0020] Preferably, a round cover is provided on the countersunk groove, and the round cover covers the countersunk groove.

[0021] Through the above technical solution, the round cover is used to cover the countersunk groove to prevent the raw material from flowing into the countersunk groove during the injection molding process, thereby avoiding affecting the appearance of the final product.

[0022] Preferably, the end of the driving rod away from the upper mold is provided with a rounded corner.

[0023] Through the above technical solution, when closing the mold, the driving rod needs to be inserted back into the core puller. The rounded corner design can guide the driving rod during the closing process and increase working stability.

[0024] The technical effects of this utility model are mainly reflected in the following aspects:

[0025] 1. The utility model achieves the purpose of automatically pulling out the core-pulling rod from the formed buckle cover by designing a core-pulling structure, thereby increasing the degree of automation and facilitating demoulding of the plastic lower cover of the router;

[0026] 2. The utility model uses inserts to form the shaft and buckle cover, so that the operator can replace the damaged and old parts in time, thereby improving the accuracy of the shaft and the outer side of the buckle cover to facilitate subsequent installation operations;

[0027] 3. The utility model splits the core-pulling seat into two parts, so that the operator can replace the core-pulling rod and adapt the size through sealing rings of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the related technology 1;

[0029] Figure 2 It is a schematic diagram of the overall structure of the related technology 2;

[0030] Figure 3 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0031] Figure 4 It is a partial structural schematic diagram of an embodiment of the present application;

[0032] Figure 5 In the embodiment of this application Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0033] Figure 6 This is a schematic structural diagram of a straight top assembly according to an embodiment of the present application;

[0034] Figure 7 This is a schematic structural diagram of the core pulling structure of an embodiment of the present application;

[0035] Figure 8 In the embodiment of this application Figure 4 Schematic diagram of a partial section along section line BB.

[0036] Figure numerals: 1, upper mold; 11, injection port; 12, runner; 2, lower mold; 3, cavity; 4, core-pulling structure; 41, core-pulling seat; 411, slider; 412, cooling hole; 413, fixed block; 414, sealing ring; 415, driving rod; 4151, chamfered corner; 416, core-pulling rod; 4161, side groove; 417, core-pulling hole; 418, cover plate; 5, straight top assembly; 51, first straight top structure; 511, first A straight push rod; 512, a first top plate; 52, a second straight top structure; 521, a second straight push rod; 522, a second top plate; 5221, an avoidance hole; 6, an insert; 61, a countersunk groove; 62, a round cover; 7, a cooling pipe; 8, a plastic upper cover of a router; 81, a sleeve; 82, a reinforcement rib grid; 83, a rotating shaft; 9, a plastic lower cover of a router; 91, a buckle cover; 911, a round hole; 912, a notch; 92, a reinforcement rib network. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-8 , the specific implementation methods of the utility model are further described in detail to make the technical solution of the utility model easier to understand and grasp.

[0038] The present application embodiment discloses a plastic cover for a router:

[0039] Reference Figure 3-Figure 8 A router plastic cover injection molding mold includes an upper mold 1 and a lower mold 2. After the upper mold 1 and the lower mold 2 are molded together, a cavity 3 for casting a router plastic upper cover 8 and a router plastic lower cover 9 is formed. The mold also includes a core pulling structure 4 and a straight top assembly 5. The core pulling structure 4 includes a core pulling seat 41, a driving rod 415 and a core pulling rod 416. One end of the core pulling rod 416 is set on the core pulling seat 41, and the other end is inserted into the cavity 3 for forming the inner circular hole 911 of the buckle cover 91. The core pulling seat 41 slides on the lower mold 2 along the length direction of the core pulling rod 416. One end of the driving rod 415 is fixed on the upper mold 1, and the other end is obliquely inserted into the core pulling seat 41; the straight top assembly 5 is used to remove the router plastic upper cover 8 and the router plastic lower cover 9 from the lower mold 2. When the mold needs to be opened, the upper mold 1 drives the driving rod 415 and then drives the core puller 41 to move, so that the core puller rod 416 is automatically pulled out from the molded buckle cover 91, which increases the degree of automation and facilitates the demoulding of the router plastic lower cover 9.

[0040] Reference Figure 3 The upper mold 1 also includes an injection port 11 and a flow channel 12 connected to the injection port 11. The flow channel 12 connects the injection port 11 and the cavity 3. The injection port 11 is connected to an external injection molding machine, and the router plastic upper cover 8 and the router plastic lower cover 9 are injected into the cavity 3 through the flow channel 12.

[0041] Reference Figure 7 A side groove 4161 is formed on one end of the core pulling rod 416 away from the core pulling seat 41, and the side groove 4161 abuts against the cavity 3. The core pulling rod 416 abuts against the cavity 3 to create a notch 912 of the buckle cover 91, so as to facilitate the buckle cover 91 to be buckled on the rotating shaft 83.

[0042] Reference Figure 4 The upper die 1 and the lower die 2 are relatively detachably mounted with multiple inserts 6, and the multiple inserts 6 are provided with countersunk grooves 61, and the countersunk grooves 61 are used to match the bolts to install the inserts 6, and the inserts 6 are used to form the outer side of the rotating shaft 83 and the buckle cover 91. The inserts 6 are fixed to the upper die 1 and the lower die 2 by bolts, and the operator can replace the damaged and old parts in time, so as to improve the accuracy of the outer side of the rotating shaft 83 and the buckle cover 91, so as to facilitate the subsequent installation work.

[0043] Reference Figure 5The countersunk groove 61 is buckled with a round cover 62, and the round cover 62 covers the countersunk groove 61. By using the round cover 62 to cover the countersunk groove 61, the raw material is prevented from flowing into the countersunk groove 61 during the injection molding process, thereby avoiding affecting the appearance of the final product.

[0044] Reference Figure 7-Figure 8 The core-pulling seat 41 includes a slider 411, a fixed block 413 and a sealing ring 414. The slider 411 slides on the lower mold 2 along the length direction of the core-pulling rod 416, and the fixed block 413 is fixed to the top surface of the slider 411 by bolts. The slider 411 and the fixed block 413 cooperate to open a core-pulling hole 417, and the core-pulling rod 416 is inserted into the core-pulling hole 417. The end of the core-pulling rod 416 away from the side groove 4161 is folded outward with a flange. The core-pulling hole 417 is set in a trapezoidal shape, and the flange is clamped on the trapezoidal surface to facilitate the core-pulling seat 411 to drive the core-pulling rod 416 to move in a direction away from the buckle cover 91. The sealing ring 414 is sleeved on the core-pulling rod 416, and the outer side of the sealing ring 414 is attached to the inner side of the core-pulling hole 417 and has an interference fit with the core-pulling hole 417. The inner side of the sealing ring 414 has an interference fit with the core-pulling rod 416. The core puller 41 is split into a slider 411 and a fixed block 413, which are detachably fixed by bolts, so that the operator can replace the core puller rod 416, and the design of the sealing ring 414 allows the operator to adapt to the core puller rods 416 of different diameters by changing the thickness of the sealing ring 414, so as to facilitate the adjustment of the size of the buckle cover 91 and reduce the impact of the buckle cover 91 being too large or too small on the appearance and practicality. At the same time, it is also necessary to replace the insert 6 to adapt to the diameter of the core puller rod 416. It also includes a cover plate 418, which is located on the top surface of the slider 411 and is fixed to the lower mold 2 by bolts. The cover plate 418 is designed to limit the movement of the slider 411 in the vertical direction.

[0045] Reference Figure 7-Figure 8 A cooling pipe 7 is also inserted in the lower mold 2, and a cooling hole 412 matching the cooling pipe 7 is opened on the slider 411. The cooling hole 412 completely penetrates the slider 411 and is parallel to the length direction of the core pulling rod 416. The setting of the cooling pipe 7 and the cooling hole 412 firstly ensures the cooling of the core pulling seat 41 during the working process, and secondly, when the slider 411 slides, the cooling pipe 7 can limit the deflection of the slider 411 in the length direction of the core pulling rod 416, and after the driving rod 415 is completely pulled out, the friction between the cooling pipe 7 and the cooling hole 412 can reduce the tendency of the slider 411 to move and increase stability.

[0046] Reference Figure 6The straight top assembly 5 includes a first straight top structure 51, a second straight top structure 52 and a power source. The first straight top structure 51 includes a plurality of first straight top rods 511 and a first top plate 512. One end of the plurality of first straight top rods 511 is fixed on the first top plate 512, and the other end passes through the lower mold 2 and abuts against the bottom surface of the router plastic upper cover 8 and the router plastic lower cover 9 respectively, and is used to form the sleeve 81, the reinforcing rib grid 82 and the reinforcing rib network 92. The second straight top structure 52 includes a plurality of second straight top rods 521 and a second top plate 522. The second top plate 522 is arranged above the first top plate 512. The second top plate 522 is provided with an avoidance hole 5221 for the first straight top rod 511 to pass through. One end of the second straight top rod 521 is fixed below the second top plate 522, and the other end passes through the second top plate 522 and abuts against the bottom surface of the side edge of the router plastic lower cover 9. The power source is used to drive the first top plate 512 and the second top plate 522 to move along the mold opening and closing direction. When the mold is opened, the power source drives the first straight ejector rod 511 and the second straight ejector rod 521 to move in the mold opening direction, and ejects the router plastic upper cover 8 and the router plastic lower cover 9 from the lower mold 2. Multiple first straight ejector rods 511 are used to accurately form the sleeve 81 and the reinforcing rib grid 82, thereby improving the molding quality of the product. The second straight ejector rod 521 and the first straight ejector rod 511 act together on the router plastic lower cover 9 during the mold opening process, providing a balanced demoulding force, thereby preventing the buckle cover 91 from being damaged due to poor mold opening.

[0047] Reference Figure 7 The end of the driving rod 415 away from the upper mold 1 is provided with a rounded corner 4151. When the mold is closed, the driving rod 415 needs to be inserted back into the core puller 41. The design of the rounded corner 4151 can guide the driving rod 415 during the mold closing process and increase the working stability.

[0048] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A router plastic cover injection molding mold, comprising an upper mold (1) and a lower mold (2), wherein the upper mold (1) and the lower mold (2) are combined to form a cavity (3) for casting a router plastic upper cover (8) and a router plastic lower cover (9), characterized in that: It also includes a core pulling structure (4) and a straight top assembly (5), wherein the core pulling structure (4) includes a core pulling seat (41), a driving rod (415) and a core pulling rod (416), one end of the core pulling rod (416) is arranged on the core pulling seat (41), and the other end is inserted into the mold cavity (3) for forming the inner circular hole (911) of the buckle cover (91), the core pulling seat (41) slides on the lower mold (2) along the length direction of the core pulling rod (416), one end of the driving rod (415) is arranged on the upper mold (1), and the other end is obliquely inserted into the core pulling seat (41); when the mold is opened, the driving rod (415) moves along the mold opening direction together with the upper mold (1), driving the core pulling seat (41) to move toward the end away from the core pulling rod (416); the straight top assembly (5) is used to remove the router plastic upper cover (8) and the router plastic lower cover (9) from the lower mold (2).

2. The router plastic cover injection molding mold according to claim 1, characterized in that: A plurality of inserts (6) are arranged on the upper die (1) and the lower die (2) in a relative manner. The plurality of inserts (6) are provided with countersunk grooves (61). The countersunk grooves (61) are used to cooperate with bolts to fix the inserts (6). The inserts (6) are used to form the outer sides of the rotating shaft (83) and the buckle cover (91).

3. The router plastic cover injection molding mold according to claim 1, characterized in that: The core pulling seat (41) comprises a slider (411), a fixed block (413) and a sealing ring (414); the slider (411) slides on the lower mold (2) along the length direction of the core pulling rod (416); the fixed block (413) is fixed on the top surface of the slider (411) by bolts; the slider (411) and the fixed block (413) cooperate to form a core pulling hole (417); the core pulling hole (417) is arranged in a trapezoidal shape, and the core pulling rod (416) is arranged in the core pulling hole (417); the sealing ring (414) is sleeved on the core pulling rod (416); the outer side of the sealing ring (414) is attached to the inner side of the core pulling hole (417) and is interference fit with the core pulling hole (417); the inner side of the sealing ring (414) is interference fit with the core pulling rod (416).

4. The router plastic cover injection molding mold according to claim 3, characterized in that: A cooling pipe (7) is also inserted into the lower mold (2), and a cooling hole (412) matching the cooling pipe (7) is opened on the slider (411). The cooling hole (412) completely passes through the slider (411) and is parallel to the length direction of the core pulling rod (416).

5. The router plastic cover injection molding mold according to claim 1, characterized in that: The straight top assembly (5) comprises a first straight top structure (51), a second straight top structure (52) and a power source, wherein the first straight top structure (51) comprises a plurality of first straight top rods (511) and a first top plate (512), wherein one end of the plurality of first straight top rods (511) is arranged on the first top plate (512), and the other end passes through the lower mold (2) and abuts against the bottom surface of the router plastic upper cover (8) and the router plastic lower cover (9), respectively, and is used to form a sleeve (81), a reinforcing rib grid (82) and a reinforcing rib network (92); the second straight top structure (52) The invention comprises a plurality of second straight push rods (521) and a second top plate (522), wherein the second top plate (522) is arranged above the first top plate (512), and the second top plate (522) is provided with an avoidance hole (5221) for the first straight push rod (511) to pass through; one end of the second straight push rod (521) is arranged below the second top plate (522), and the other end passes through the second top plate (522) and abuts against the bottom surface of the side edge of the router plastic lower cover (9); the power source is used to drive the first top plate (512) and the second top plate (522) to move along the mold opening and closing direction.

6. The router plastic cover injection molding mold according to claim 1, characterized in that: A side groove (4161) is formed on one end of the core pulling rod (416) away from the core pulling seat (41), and the side groove (4161) abuts against the mold cavity (3).

7. The router plastic cover injection molding mold according to claim 2, characterized in that: The countersunk groove (61) is provided with a round cover (62), and the round cover (62) covers the countersunk groove (61).

8. The router plastic cover injection molding mold according to claim 1, characterized in that: The end of the driving rod (415) away from the upper mold (1) is provided with a rounded corner (4151).

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