Vulcanization forming mold for rubber bushing

Abstract

The utility model discloses a rubber bushing vulcanization forming mold which comprises an upper mold base, an upper mold, a lower mold base, a lower mold, an inner pipe and an outer pipe and further comprises an automatic discharging mechanism used for achieving automatic discharging of a formed bushing. Sealing mechanisms are arranged on the upper mold and the lower mold and used for abutting against and sealing the end faces of the inner pipe and the outer pipe; one of the mold cores is integrally formed on the bottom surface of the upper mold, and the other mold core is movably arranged in the lower mold; the mold core abuts against and is sealed with the end faces of the inner pipe and the outer pipe. A positioning block is arranged in the center of the module; the convex blocks are integrally formed on the top surfaces of the two ends of the module; the plurality of sealing surfaces are formed by the surface of the module, the surfaces of the positioning blocks and the convex blocks; in daily production and life, through the arrangement of the mold core, the surface of the mold core abuts against the end face of the inner pipe and the end face of the outer pipe in a sealed mode, glue overflowing during injection molding is prevented, the production quality of an old sleeve is improved, and meanwhile the later construction steps of the sleeve are reduced.

Description

Technical Field

[0001] The utility model relates to a vulcanization molding die for a rubber bushing. Background Art

[0002] In the injection molding process of the bushing, an injection mold and an injection molding machine are required. The injection molding machine injects the molten plastic material into the mold cavity of the injection mold with high pressure. After cooling and solidification, a molded product is obtained. However, in the process of integrated injection molding of the bushing in the prior art, there is a gap between the metal pipe and the mold, which causes glue overflow, reduces the production quality of the bushing, and at the same time, after production is completed, manual unloading is required, which increases the manual workload. Summary of the invention

[0003] The utility model aims to solve one of the technical problems existing in the prior art.

[0004] The present application provides a rubber bushing vulcanization molding die, including an upper die base, an upper die, a lower die base, a lower die, an inner tube and an outer tube, and also includes:

[0005] Automatic unloading mechanism, which is used to realize automatic unloading of the formed bushing;

[0006] Wherein, the upper mold and the lower mold are provided with sealing mechanisms for abutting and sealing against the end faces of the inner tube and the outer tube.

[0007] The sealing mechanism includes:

[0008] A pair of mold cores, one of which is integrally formed on the bottom surface of the upper mold, and the other is movably arranged in the lower mold;

[0009] An injection cavity is provided in the upper mold and is connected with the mold core and the lower mold;

[0010] The mold core abuts against and seals the end faces of the inner tube and the outer tube.

[0011] Automatic unloading mechanism includes:

[0012] A moving part is arranged in the lower die base and is transmission-coordinated with the die core in the lower die;

[0013] The driving member is arranged at both ends of the upper die base and is in transmission cooperation with the moving member.

[0014] The mold core includes:

[0015] The module has a positioning block integrally formed in the center;

[0016] Two groups of protrusions are symmetrically arranged and integrally formed on the top surfaces of both ends of the module;

[0017] A plurality of sealing surfaces formed by the module surface and the positioning block and the projection surface;

[0018] The convex block and the sealing surface abut against and seal the end surfaces of the inner tube and the outer tube.

[0019] The injection cavity includes:

[0020] A placement groove is provided on the top of the upper mold;

[0021] The injection channel is arranged in the upper mold, and its two ends are connected with the placement groove and the lower mold.

[0022] Moving parts include:

[0023] A fixed frame is movably arranged below the mold core, and its bottom movably passes through the lower mold;

[0024] A connecting frame, which is movably arranged in the lower die base and fixedly connected to the fixing frame;

[0025] A return spring, both ends of which are fixedly connected to the lower mold and the connecting frame;

[0026] Wherein, the connecting frame and the driving member are in transmission cooperation;

[0027] The drive components include:

[0028] A fixed cylinder, which is fixedly connected to the bottom surface of the upper die base and has a transmission member fixedly arranged inside;

[0029] A driving block, which is fixedly connected to the output end of the driving member and has an inclined surface 1 at one end;

[0030] The movable block has a bottom end that movably penetrates the fixed tube and is movably clamped into the connecting frame;

[0031] Inclined surface 2 is arranged on the side surface of the top end of the movable block and is in transmission cooperation with inclined surface 1.

[0032] Also includes:

[0033] A slide groove, which is arranged on the inner wall of the fixed cylinder;

[0034] A sliding plate is slidably disposed in the sliding groove, and one end of the sliding plate is fixedly connected to the movable block;

[0035] The two ends of the elastic spring are fixedly connected to the fixed cylinder and the sliding plate.

[0036] Also includes:

[0037] A sliding groove is provided on the side of the lower die base and communicated with the interior of the lower die base;

[0038] The fixing groove is arranged on the side of the connecting frame and is used for movably clamping the movable block.

[0039] The beneficial effects of the utility model are as follows:

[0040] 1. Through the setting of the mold core, its surface is sealed and abutted with the end faces of the inner tube and the outer tube to prevent glue overflow during injection molding, improve the production quality of the bushing, and reduce the steps of repairing the bushing in the later stage;

[0041] 2. Through the setting of moving parts and driving parts and the transmission coordination, the bushing can be automatically unloaded after the injection molding is completed, which reduces the workload of the staff and improves the production efficiency of the bushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a front cross-sectional view of a bushing vulcanization molding die in an embodiment of the present application;

[0043] Figure 2 Based Figure 1 A schematic diagram of the enlarged local structure at center A;

[0044] Figure 3 Based Figure 1 A magnified schematic diagram of the local structure at B in the middle;

[0045] Figure 4 Based Figure 1 Enlarged schematic diagram of the local structure at point C in the middle.

[0046] Reference numerals

[0047] 1-upper mold base, 2-upper mold, 3-lower mold base, 4-lower mold, 5-inner tube, 6-outer tube, 7-automatic unloading mechanism, 71-moving part, 711-fixed frame, 712-connecting frame, 713-reset spring, 72-driving part, 721-fixed cylinder, 722-transmission part, 723-driving block, 724-inclined surface one, 725-movable block, 726-inclined surface two, 9-sealing mechanism, 91-core, 911-module, 912-positioning block, 913-bump, 914-sealing surface, 92-injection cavity, 921-placement groove, 922-injection channel, 10-slide groove, 11-sliding plate, 12-elastic spring, 13-slide groove, 14-fixed groove. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0049] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0050] The server provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0051] Embodiment 1:

[0052] like Figures 1 to 3 As shown, an embodiment of the present application provides a rubber bushing vulcanization molding mold, including an upper mold base 1, an upper mold 2, a lower mold base 3, a lower mold 4, an inner tube 5 and an outer tube 6, and also includes a sealing mechanism 9 provided on the upper mold 2 and the lower mold 4 for abutting and sealing with the end faces of the inner tube 5 and the outer tube 6.

[0053] Furthermore, the sealing mechanism 9 includes a pair of mold cores 91, one of which is integrally formed on the bottom surface of the upper mold 2, and the other is movably arranged in the lower mold 4; an injection cavity 92, which is arranged in the upper mold 2 and is connected to the mold core 91 and the lower mold 4; wherein the mold core 91 abuts against and seals the end faces of the inner tube 5 and the outer tube 6.

[0054] Furthermore, the core 91 includes a module 911, a positioning block 912 is integrally formed at the center; two groups of protrusions 913 are symmetrically arranged and integrally formed on the top surfaces of both ends of the module 911; a plurality of sealing surfaces 914 are formed by the surface of the module 911 and the surfaces of the positioning block 912 and the protrusion 913; wherein the protrusion 913 and the sealing surface 914 abut and seal against the end faces of the inner tube 5 and the outer tube 6.

[0055] Furthermore, the injection cavity 92 includes a placement groove 921 disposed on the top of the upper mold 2 ; an injection channel 922 disposed in the upper mold 2 , with both ends connecting the placement groove 921 and the lower mold 4 .

[0056] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the upper mold base 1 is movably arranged above the lower mold base 3, and a driving assembly is provided in the device for driving the movement of the upper mold base 1; the upper mold 2 is movably arranged between the upper mold base 1 and the lower mold base 3, and a transmission assembly is provided in the device for driving the movement of the upper mold 2 (not shown in the figure).

[0057] The lower mold 4 is fixed in the lower mold base 3, and a plurality of injection holes are provided on the top surface of the lower mold 4, and a mold core 91 is movably provided in the injection hole. At the same time, the bottom surface of the upper mold 2 is integrally formed with a mold core 91, and the number and position of the mold cores 91 on both sides correspond. The outer tube 6 and the inner tube 5 are movably placed in the injection hole, and the upper mold 2 is driven to move by the transmission assembly, so that the mold cores 91 on both sides are abutted and sealed with the inner tube 5 and the outer tube 6, and injection is performed between the inner tube 5 and the outer tube 6 to achieve injection molding without overflowing glue.

[0058] The module 911 on the upper mold 2 is integrally formed with the upper mold 2, and positioning blocks 912 and protrusions 913 are provided at both ends of the mold center; an injection block is provided between the top block and the protrusion 913; the positioning block 912, the protrusion 913 and the injection block form a sealing surface 914 with the surface of the module 911 and the upper mold 2.

[0059] A placement groove 921 is provided on the top of the upper mold 2, and a placement block is provided on the bottom surface of the upper mold base 1, and the number and position of the placement grooves 921 correspond to the placement blocks; an injection channel 922 is provided in the injection block, and both ends of the injection channel 922 connect the placement groove 921 with the outside, and the output end of the injection channel 922 is located between the outer tube 6 and the inner tube 5, so as to realize the input of vulcanized rubber liquid therein.

[0060] During the injection molding process, the inner tube 5 is placed in the injection hole, and the inner tube 5 is positioned by the positioning block 912 on the mold core 91 in the injection hole, and then the outer tube 6 is placed in the injection hole; the transmission component drives the upper mold 2 to move above the lower mold 4 to achieve the closure of the injection hole, at which time the protrusions 913 on both sides respectively abut against the end faces of the appearance and the inner tube 5; the rubber block is placed in the placement groove 921 and heated to soften, and at the same time, the driving component drives the placement block on the upper mold base 1 to fit into the placement groove 921. Under the pressure of the upper mold base 1, the rubber liquid is input from the injection channel 922 to between the outer tube 6 and the inner tube 5, and at the same time drives the protrusion 913 to gradually fit into the outer tube 6 and the inner tube 5, and at the same time, the sealing surface 914 gradually abuts against the surface of the outer tube 6 and the inner tube 5 and seals, thereby achieving the sealing of the space between the appearance and the inner tube 5 to prevent overflow of glue during injection molding.

[0061] Embodiment 2:

[0062] like Figures 1 to 4 As shown, in this embodiment, in addition to the structural features of the previous embodiments, an automatic unloading mechanism 7 is also included, which is used to realize automatic unloading of the formed bushing.

[0063] Furthermore, the automatic unloading mechanism 7 includes a moving part 71 , which is arranged in the lower mold base 3 and is in transmission cooperation with the mold core 91 in the lower mold 4 ; a driving part 72 , which is arranged at both ends of the upper mold base 1 and is in transmission cooperation with the moving part 71 .

[0064] Further, the moving member 71 includes a fixed frame 711, which is movably arranged below the mold core 91, and the bottom of which movably penetrates the lower mold 4; a connecting frame 712, which is movably arranged in the lower mold base 3 and fixedly connected to the fixed frame 711; a return spring 713, whose two ends are fixedly connected to the lower mold 4 and the connecting frame 712; wherein the connecting frame 712 is in transmission cooperation with the driving member 72;

[0065] Furthermore, the driving member 72 includes a fixed cylinder 721, which is fixedly connected to the bottom surface of the upper mold base 1 and has a transmission member 722 fixed inside; a driving block 723, which is fixedly connected to the output end of the driving member 72 and has a slope 1 724 at one end; a movable block 725, whose bottom end movably passes through the fixed cylinder 721 and is movably clamped in the connecting frame 712; and a slope 2 726, which is arranged on the top side of the movable block 725 and cooperates with the slope 1 724 in transmission.

[0066] Furthermore, it also includes a slide groove 10923, which is arranged on the inner wall of the fixed cylinder 721; a sliding plate 11, which is slidably arranged in the slide groove 10923 and one end of which is fixedly connected to the movable block 725; and an elastic spring 12, both ends of which are fixedly connected to the fixed cylinder 721 and the sliding plate 11.

[0067] Furthermore, it also includes a sliding groove 13, which is arranged on the side of the lower mold base 3 and communicated with the interior of the lower mold base 3; a fixing groove 14, which is arranged on the side of the connecting frame 712 and is used for movably clamping the movable block 725.

[0068] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the lower mold 4 is fixedly provided inside the lower mold base 3, and a cavity is formed between the lower mold base 3 and the lower mold 4, a connecting frame 712 is movably provided in the cavity, and a sliding groove 13 is provided on the side of the lower mold base 3, the sliding groove 13 is connected to the cavity, and a fixed groove 14 is provided on the side of the connecting frame 712, the fixed groove 14 is opposite to the sliding groove 13, and the length of the sliding groove 13 is greater than that of the fixed groove 14.

[0069] The fixing frame 711 is movably arranged in the injection hole of the lower mold 4 and is located below the mold core 91; the bottom of the fixing frame 711 movably passes through the lower mold 4, extends into the cavity, and is fixedly connected to the connecting frame 712, and a reset spring 713 is fixedly connected between the lower mold 4 and the connecting frame 712. The driving member 72 drives the movement of the connecting member, drives the fixing frame 711 to move in the injection hole, and pushes the mold core 91 and the injection-molded bushing to move, thereby realizing automatic unloading of the molding bushing.

[0070] A fixed cylinder 721 is fixedly provided at both ends of the upper mold base 1, and a transmission member 722 is fixedly provided in the fixed cylinder 721. The transmission member 722 can be set as an electric telescopic rod or other translatable parts such as a cylinder. An electric telescopic rod is used here; the output end of the electric telescopic rod is fixedly connected to a driving block 723, and one end of the driving block 723 is provided with a slope 1 724; a movable block 725 is provided on the side of the driving block 723, and a slope 2 726 is provided on the top of the movable block 725. The slope 1 724 is matched with the slope 2 726 in transmission, that is, through the vertical downward movement of the driving block 723, the slope 1 724 slides on the slope 2 726 and pushes the movable block 725 to move horizontally.

[0071] The bottom end of the movable block 725 movably passes through the fixed tube 721 and can extend outside the fixed tube 721 .

[0072] The bottom surface of the movable block 725 is fixedly connected with a sliding plate 11 , which is slidably arranged in a sliding groove 13 in the fixed cylinder 721 , and the sliding plate 11 and the fixed cylinder 721 are fixedly connected via an elastic spring 12 to achieve the resetting of the movable block 725 .

[0073] When the bushing is being injected, the driving assembly drives the fixed cylinder 721 to move to both sides of the lower mold base 3. When the bushing is injected, the electric telescopic rod is started, the electric telescopic rod drives the driving block 723 to move downward, and pushes the movable block 725 to move out of the fixed cylinder 721. During the movement, the movable block 725 moves through the sliding groove 13 and is movably connected to the fixed groove 14; then the driving assembly drives the upper mold base 1 to move upward, the movable block 725 slides in the sliding groove 13, and drives the connection to move in the cavity, the connecting frame 712 pushes the fixed frame 711 to move in the injection hole, and the bushing that has been injected in the injection hole is removed; after the removal is completed, the electric telescopic rod is driven again, the electric telescopic rod drives the driving member 72 back to its original position, and the movable block 725 also returns to its original position under the recovery deformation of the elastic spring 12, and disengages from the sliding groove 13 and the fixed groove 14 to prevent obstruction of movement of the upper mold base 1.

[0074] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0075] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A rubber bushing vulcanization molding die, comprising an upper die base (1), an upper die (2), a lower die base (3), a lower die (4), an inner tube (5) and an outer tube (6), characterized in that: Also includes: An automatic unloading mechanism (7) for realizing automatic unloading of the formed bushing; Wherein, the upper mold (2) and the lower mold (4) are provided with sealing mechanisms (9) for contacting and sealing with the end faces of the inner tube (5) and the outer tube (6).

2. A rubber bushing vulcanization molding die according to claim 1, characterized in that: The sealing mechanism (9) comprises: A pair of mold cores (91), one of which is integrally formed on the bottom surface of the upper mold (2), and the other is movably disposed in the lower mold (4); An injection cavity (92) is disposed in the upper mold (2) and is connected to the mold core (91) and the lower mold (4); The mold core (91) abuts against and seals the end surfaces of the inner tube (5) and the outer tube (6).

3. A rubber bushing vulcanization molding die according to claim 1, characterized in that: The automatic unloading mechanism (7) comprises: A movable member (71) is disposed in the lower die base (3) and is in transmission cooperation with a die core (91) in the lower die (4); The driving member (72) is arranged at both ends of the upper die base (1) and is in transmission cooperation with the moving member (71).

4. A rubber bushing vulcanization molding die according to claim 2, characterized in that: The mold core (91) comprises: A module (911) having a positioning block (912) integrally formed at its center; Two groups of protrusions (913) are symmetrically arranged and integrally formed on the top surfaces of both ends of the module (911); A plurality of sealing surfaces (914) formed by the surface of the module (911) and the surfaces of the positioning block (912) and the protrusion (913); The protrusion (913) and the sealing surface (914) abut against and seal the end surfaces of the inner tube (5) and the outer tube (6).

5. A rubber bushing vulcanization molding die according to claim 4, characterized in that: The injection molding cavity (92) comprises: A placement groove (921) is provided on the top of the upper mold (2); The injection channel (922) is arranged in the upper mold (2), and its two ends are connected to the placement groove (921) and the lower mold (4).

6. A rubber bushing vulcanization molding die according to claim 3, characterized in that: The moving member (71) comprises: A fixed frame (711) is movably disposed below the mold core (91), and its bottom movably penetrates the lower mold (4); A connecting frame (712) is movably disposed in the lower die base (3) and fixedly connected to the fixing frame (711); A return spring (713), both ends of which are fixedly connected to the lower mold (4) and the connecting frame (712); The connecting frame (712) is in driving cooperation with the driving member (72).

7. A rubber bushing vulcanization molding die according to claim 6, characterized in that: The driving member (72) comprises: A fixed cylinder (721) which is fixedly connected to the bottom surface of the upper die base (1) and has a transmission member (722) fixedly arranged inside; A driving block (723) is fixedly connected to the output end of the driving member (72) and has an inclined surface (724) at one end; The movable block (725) has a bottom end that movably penetrates the fixed tube (721) and is movably snap-connected to the connecting frame (712); Inclined surface 2 (726) is disposed on the top side of the movable block (725) and is in transmission cooperation with inclined surface 1 (724).

8. A rubber bushing vulcanization molding die according to claim 7, characterized in that: Also includes: A slide groove (10) provided on the inner wall of the fixing cylinder (721); A sliding plate (11) is slidably disposed in the sliding groove (10) and one end of which is fixedly connected to the movable block (725); The elastic spring (12) has two ends fixedly connected to the fixed tube (721) and the sliding plate (11).

9. A rubber bushing vulcanization molding die according to claim 8, characterized in that: Also includes: A sliding groove (13), which is arranged on the side of the lower die base (3) and communicates with the interior of the lower die base (3); The fixing groove (14) is arranged on the side of the connecting frame (712) and is used for movably engaging the movable block (725).

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