Extrusion positioning mechanism for sealing ring production

Abstract

The utility model relates to the technical field of sealing ring production, and discloses an extrusion positioning mechanism for sealing ring production, which comprises a lower extrusion positioning die and an upper extrusion positioning die, an outer ring positioning assembly is arranged on the upper surface of the lower extrusion positioning die and comprises an outer ring positioning cavity which is formed in the upper surface of the lower extrusion positioning die; the extrusion hole is formed in the bottom surface of the outer ring positioning cavity; the limiting hole is formed in the inner wall of the outer ring positioning cavity; the outer ring adjusting assembly and the inner ring adjusting assembly are arranged, the outer ring adjusting assembly is connected with the outer ring positioning assembly in a sliding and clamping mode, and the inner ring adjusting assembly is connected with the inner ring positioning assembly in a sliding and clamping mode, so that the sizes of an outer ring and an inner ring of an extruded rubber ring can be flexibly adjusted according to needs before extrusion production; and meanwhile, the thickness of the sealing ring can be adjusted, so that the extrusion positioning mechanism can meet the production requirements of most sealing rings.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring production technology, specifically to an extrusion positioning mechanism for sealing ring production. Background Technology

[0002] Most sealing rings are made of rubber. In the production of sealing rings, a rubber extruder is needed to extrude the sealing strip for initial shaping. The rubber extruder is a basic piece of equipment in the rubber industry and one of the key pieces of equipment affecting product quality. It plays a very important role in the production of tires and rubber products. The development of rubber extruders abroad has gone through stages such as plunger extruders, screw-type hot feed extruders, ordinary cold feed extruders, main and auxiliary screw cold feed extruders, cold feed venting extruders, pin cold feed extruders, and compound extruders.

[0003] For example, Chinese utility model patent CN222061047U proposes an extrusion positioning mechanism for sealing ring production, including an extrusion die for forming the sealing ring and a positioning component for positioning the extruded sealing ring. The extrusion die has multiple forming cavities, each with an input port. Multiple material conveying pipes corresponding to the forming cavities are provided on the material conveying ports, and a second material conveying pipe is provided between the first material conveying pipe and the forming cavity. An installation groove is provided in each forming cavity, and an installation component for mounting the positioning component is installed within the installation groove. The positioning component includes a positioning block for forming the sealing ring by engaging with the inner wall of the forming cavity and a positioning base for mounting with the installation groove. Installation openings are provided on both sides of the positioning base, and installation blocks adapted to the installation openings are elastically provided on the inner walls of both sides of the installation groove.

[0004] In the existing technology, different positioning blocks are used to extrude and position rubber rings of different specifications. However, since only the middle positioning block can be replaced, the thickness of the rubber ring and the diameter of the outer ring cannot be flexibly adjusted, and different molds still need to be used for production. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an extrusion positioning mechanism for sealing ring production. This mechanism allows for flexible adjustment of the outer and inner ring sizes of the extruded rubber ring, as well as the thickness of the sealing ring. This makes the extrusion positioning mechanism adaptable to the production needs of most sealing rings. It solves the problem that only the middle positioning block can be replaced, which prevents flexible adjustment of the rubber ring thickness and outer ring diameter, and still requires the use of different molds for production.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an extrusion positioning mechanism for producing sealing rings, comprising a lower extrusion positioning die and an upper extrusion positioning die;

[0009] The upper surface of the lower extrusion positioning mold is provided with an outer ring positioning assembly. The outer ring positioning assembly includes an outer ring positioning cavity, which is opened on the upper surface of the lower extrusion positioning mold; an extrusion hole, which is opened on the bottom surface of the outer ring positioning cavity; and a limiting hole, which is opened on the inner wall of the outer ring positioning cavity.

[0010] The inner wall of the outer ring positioning component is slidably connected to an outer ring adjustment component. The outer ring adjustment component includes an outer ring adjustment sleeve, which is slidably connected to the inner wall of the outer ring positioning component; an adjustment hole, which is opened inside the outer ring adjustment sleeve; a limiting spring, which is fixedly connected to the inside of the adjustment hole; and a limiting ball, which is slidably connected to the inner wall of the adjustment hole.

[0011] The lower surface of the upper extrusion positioning die is provided with an inner ring positioning component, the inner ring positioning component including an inner ring positioning cavity, which is opened on the lower surface of the upper extrusion positioning die; and a slot, which is opened on the bottom surface of the inner ring positioning cavity.

[0012] The inner ring positioning component has an inner ring adjustment component slidably connected to its inner sidewall. The inner ring adjustment component includes an inner ring adjustment post slidably connected to the inner sidewall of the inner ring positioning component; and a locking block fixedly connected to the bottom of the inner ring adjustment post and engaging with the locking slot.

[0013] Preferably, the lower extrusion positioning die includes a lower die body; an injection port, which is opened inside the lower die body and communicates with the extrusion hole; and a guide sleeve, which is fixedly connected to the top of the lower die body.

[0014] Preferably, the upper extrusion positioning die includes an upper die body and a guide hole, which is formed at the bottom of the upper die body.

[0015] Preferably, the bottom surface of the outer ring positioning cavity has three sets of extrusion holes.

[0016] Preferably, there are two limiting holes and two limiting balls, and the outer ring adjusting sleeve is engaged with the outer ring positioning cavity through the two limiting balls and the two limiting holes.

[0017] Preferably, the inner ring positioning component further includes a magnet, which is fixedly connected to the outer surface of the slot.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides an extrusion positioning mechanism for sealing ring production, which has the following advantages:

[0020] 1. The extrusion positioning mechanism for producing this sealing ring includes an outer ring adjustment component and an inner ring adjustment component. The outer ring adjustment component is connected to the outer ring positioning component by sliding and snapping, and the inner ring adjustment component is connected to the inner ring positioning component by sliding and snapping. Before extrusion production, the size of the outer and inner rings of the extruded rubber ring can be flexibly adjusted as needed, and the thickness of the sealing ring can also be adjusted, so that the extrusion positioning mechanism can adapt to the production needs of most sealing rings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the outer ring positioning component in this utility model;

[0023] Figure 3 This is a schematic diagram of the outer ring adjustment component in this utility model;

[0024] Figure 4 This is a schematic diagram of the inner ring positioning component in this utility model;

[0025] Figure 5 This is a schematic diagram of the inner ring adjustment component in this utility model.

[0026] In the picture:

[0027] 10. Lower extrusion positioning die; 11. Lower die body; 12. Injection port; 13. Guide sleeve;

[0028] 20. Upper extrusion positioning die; 21. Upper die body; 22. Guide hole;

[0029] 30. Outer ring positioning assembly; 31. Outer ring positioning cavity; 32. Extrusion hole; 33. Limiting hole;

[0030] 40. Outer ring adjustment assembly; 41. Outer ring adjustment sleeve; 42. Adjustment hole; 43. Limiting spring; 44. Limiting ball;

[0031] 50. Inner ring positioning assembly; 51. Inner ring positioning cavity; 52. Slot; 53. Magnet;

[0032] 60. Inner ring adjustment assembly; 61. Inner ring adjustment column; 62. Locking block. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0034] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0035] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0037] In related technologies, different positioning blocks are used to extrude and position rubber rings of different specifications. However, since only the middle positioning block can be replaced, the thickness of the rubber ring and the diameter of the outer ring cannot be flexibly adjusted, and different molds still need to be used for production.

[0038] To address some of the problems in related technologies, this application provides an extrusion positioning mechanism for producing sealing rings. By setting an outer ring adjustment component and an inner ring adjustment component, the outer ring adjustment component is connected to the outer ring positioning component through sliding and snap-fit, and the inner ring adjustment component is connected to the inner ring positioning component through sliding and snap-fit. Before extrusion production, the size of the outer and inner rings of the extruded rubber ring can be flexibly adjusted as needed, and the thickness of the sealing ring can also be adjusted, so that the extrusion positioning mechanism can adapt to the production needs of most sealing rings.

[0039] This application is described below with reference to the accompanying drawings and specific embodiments:

[0040] Combination Figures 1-5 This application provides an extrusion positioning mechanism for producing sealing rings, including a lower extrusion positioning die 10 and an upper extrusion positioning die 20. The lower extrusion positioning die 10 includes a lower die body 11; an injection port 12, which is opened inside the lower die body 11 and communicates with the extrusion hole 32; and a guide sleeve 13, which is fixedly connected to the top of the lower die body 11. The upper extrusion positioning die 20 includes an upper die body 21; and a guide hole 22, which is opened at the bottom of the upper die body 21.

[0041] The lower die body 11 and the upper die body 21 are interlocked by the guide sleeve 13 and the guide hole 22. During extrusion, the injection port 12 on the outside of the lower die body 11 is connected to the extrusion equipment for extrusion forming.

[0042] The upper surface of the lower extrusion positioning mold 10 is provided with an outer ring positioning component 30. The outer ring positioning component 30 includes an outer ring positioning cavity 31, which is opened on the upper surface of the lower extrusion positioning mold 10; an extrusion hole 32, which is opened on the bottom surface of the outer ring positioning cavity 31; and a limiting hole 33, which is opened on the inner wall of the outer ring positioning cavity 31.

[0043] The outer ring positioning cavity 31 is formed on the upper surface of the lower extrusion positioning mold 10, and the extrusion hole 32 is formed in the outer ring positioning cavity 31. The extrusion hole 32 is connected to the injection port 12, so that the extrusion equipment squeezes the rubber material into the extrusion hole 32 through the injection port 12, and then squeezes it into the outer ring positioning assembly 30 through the extrusion hole 32 for extrusion forming.

[0044] The inner wall of the outer ring positioning component 30 is slidably connected to the outer ring adjusting component 40. The outer ring adjusting component 40 includes an outer ring adjusting sleeve 41, which is slidably connected to the inner wall of the outer ring positioning component 30; an adjusting hole 42, which is opened inside the outer ring adjusting sleeve 41; a limiting spring 43, which is fixedly connected to the inside of the adjusting hole 42; and a limiting ball 44, which is slidably connected to the inner wall of the adjusting hole 42.

[0045] The main body of the outer ring adjustment assembly 40 is an outer ring adjustment sleeve 41 with an annular structure. The outer diameter of the outer ring adjustment sleeve 41 is slightly smaller than the inner diameter of the outer ring positioning cavity 31, so that the outer ring adjustment sleeve 41 can slide into the outer ring positioning cavity 31. The inner diameter of the outer ring adjustment sleeve 41 is the outer diameter of the rubber ring. Different inner diameter outer ring adjustment sleeves 41 can be replaced as needed to achieve the purpose of adjusting the outer diameter of the sealing ring. When installing the outer ring adjustment sleeve 41, the outer ring adjustment sleeve 41 is slid into the outer ring positioning cavity 31, and then the outer ring adjustment sleeve 41 is rotated so that the limiting ball 44 on the outside of the outer ring adjustment sleeve 41 can slide into the limiting hole 33 in the outer ring positioning cavity 31. Under the action of the limiting spring 43, the outer ring adjustment sleeve 41 is limited and fixed. When disassembling the outer ring adjustment sleeve 41, the outer ring adjustment sleeve 41 can be rotated so that the limiting ball 44 on the outside of the outer ring adjustment sleeve 41 slides out of the limiting hole 33, and the outer ring adjustment sleeve 41 can be pulled out.

[0046] The lower surface of the upper extrusion positioning mold 20 is provided with an inner ring positioning component 50. The inner ring positioning component 50 includes an inner ring positioning cavity 51, which is opened on the lower surface of the upper extrusion positioning mold 20; and a slot 52, which is opened on the bottom surface of the inner ring positioning cavity 51.

[0047] The inner ring positioning cavity 51 is opened on the lower surface of the upper extrusion positioning mold 20, and its diameter is the same as that of the outer ring positioning cavity 31. A slot 52 is provided in the middle position.

[0048] The inner ring positioning component 50 is slidably connected to the inner ring adjusting component 60. The inner ring adjusting component 60 includes an inner ring adjusting post 61, which is slidably connected to the inner ring positioning component 50; and a locking block 62, which is fixedly connected to the bottom of the inner ring adjusting post 61 and engages with the locking groove 52.

[0049] The inner ring adjusting post 61 is engaged with the slot 52 via the locking block 62, allowing the inner ring adjusting post 61 to be quickly installed or removed. The diameter of the inner ring adjusting post 61 is the inner ring diameter of the extruded rubber ring. By replacing the inner ring adjusting post 61 with different diameters, the inner ring diameter of the rubber ring can be adjusted. At the same time, since both the inner and outer diameters of the rubber ring can be adjusted, the thickness of the rubber ring can also be adjusted.

[0050] In some embodiments, the bottom surface of the outer ring positioning cavity 31 is provided with three sets of extrusion holes 32. By providing three sets of extrusion holes 32, when extruding a larger size rubber ring, the three sets of extrusion holes 32 can extrude rubber material at the same time, which can improve the efficiency of extrusion molding.

[0051] In some embodiments, two limiting holes 33 and two limiting balls 44 are provided, and the outer ring adjusting sleeve 41 is engaged with the outer ring positioning cavity 31 through the two limiting balls 44 and the two limiting holes 33.

[0052] In some embodiments, the inner ring positioning component 50 further includes a magnet 53, which is fixedly connected to the outer surface of the slot 52. By setting the magnet 53 and setting the card block 62 to an iron material, the card block 62 can be attracted, further improving the connection strength between the inner ring positioning component 50 and the inner ring adjustment component 60.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0054] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An extrusion positioning mechanism for producing a sealing ring, comprising a lower extrusion positioning die (10) and an upper extrusion positioning die (20); Its features are: The upper surface of the lower extrusion positioning die (10) is provided with an outer ring positioning assembly (30), the outer ring positioning assembly (30) comprising: The outer ring positioning cavity (31) is opened on the upper surface of the lower extrusion positioning mold (10); An extrusion hole (32) is formed on the bottom surface of the outer ring positioning cavity (31); A limiting hole (33) is provided on the inner wall of the outer ring positioning cavity (31); The inner wall of the outer ring positioning component (30) is slidably connected to an outer ring adjusting component (40), the outer ring adjusting component (40) comprising: The outer ring adjusting sleeve (41) is slidably connected to the inner wall of the outer ring positioning assembly (30); An adjustment hole (42) is provided inside the outer ring adjustment sleeve (41); A limiting spring (43) is fixedly connected inside the adjusting hole (42); The limiting ball (44) is slidably connected to the inner wall of the adjusting hole (42); The lower surface of the upper extrusion positioning die (20) is provided with an inner ring positioning assembly (50), the inner ring positioning assembly (50) comprising: The inner ring positioning cavity (51) is opened on the lower surface of the upper extrusion positioning mold (20); A slot (52) is formed on the bottom surface of the inner ring positioning cavity (51); The inner ring positioning component (50) has an inner ring adjusting component (60) slidably connected to its inner sidewall. The inner ring adjusting component (60) includes: The inner ring adjusting column (61) is slidably connected to the inner sidewall of the inner ring positioning assembly (50); The locking block (62) is fixedly connected to the bottom of the inner ring adjusting column (61) and engages with the locking groove (52).

2. The extrusion positioning mechanism for producing a sealing ring according to claim 1, characterized in that: The lower extrusion positioning die (10) includes: Lower mold body (11); The injection port (12) is located inside the lower mold body (11) and communicates with the extrusion hole (32); The guide sleeve (13) is fixedly connected to the top of the lower mold body (11).

3. The extrusion positioning mechanism for producing a sealing ring according to claim 1, characterized in that: The upper extrusion positioning die (20) includes: Upper mold body (21); A guide hole (22) is provided at the bottom of the upper mold body (21).

4. The extrusion positioning mechanism for producing a sealing ring according to claim 1, characterized in that: The bottom surface of the outer ring positioning cavity (31) is provided with three sets of extrusion holes (32).

5. The extrusion positioning mechanism for producing a sealing ring according to claim 1, characterized in that: There are two limiting holes (33) and two limiting balls (44). The outer ring adjusting sleeve (41) is engaged with the outer ring positioning cavity (31) through the two limiting balls (44) and the two limiting holes (33).

6. The extrusion positioning mechanism for producing a sealing ring according to claim 1, characterized in that: The inner ring positioning component (50) also includes: A magnet (53) is fixedly connected to the outer surface of the card slot (52).

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