Conical mold for air spring leather bag

Abstract

The utility model provides a conical mold for an air spring leather bag. The conical mold comprises a main body piece, a central shaft, a first expansion piece, expansion blades, an elastic piece and a limiting seat, during cutting processing, the leather bag is arranged on the leather bag mold in a sleeving manner; downward pressure is applied to the center shaft, the center shaft drives the first expansion piece to move downwards, the expansion blades are expanded outwards through the first expansion structure, the leather bag reaches a preset external expansion state, and the subsequent cutting procedure is facilitated; and after the leather bag is cut, the downward pressure applied to the center shaft is relieved, the center shaft is recovered to the initial state through the elastic piece, the expansion blades are inwards recovered to the initial state through the first expansion structures, then the leather bag is taken down from the leather bag mold, and the cutting machining process is completed. According to the conical mold, the external expansion degree of the leather bag can be accurately controlled, it is ensured that the leather bag reaches a preset state, the strict requirements of modern industry for refinement and specialization of products are met, and the production quality and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a conical mold for an air spring bladder. Background Technology

[0002] An air spring is an advanced component of a vehicle suspension system that achieves elastic support by inflating compressed air. The air spring bulb is the core component of the air spring system, typically made of rubber, with neoprene being a common material. The air spring bulb can deform significantly under load but returns to its original state after release. This unique property plays a crucial role in addressing noise, vibration, and acoustic harshness generated during vehicle operation, thus optimizing ride comfort and stability and ensuring the high-quality operation of modern vehicles.

[0003] In the manufacturing process of air spring bladders, molding and cutting are core steps, and their processing precision directly affects the quality of the finished bladder and the overall performance of the air spring. Initially, the bladder is fitted onto a matching mold, ensuring a uniform and tight fit to prevent wrinkles, air bubbles, and other defects. Then, the mold expands outward according to preset parameters with precise amplitude, speed, and force. Once the mold reaches the desired expansion state, the bladder is cut according to the pre-planned parting line. During cutting, strict control is maintained over various cutting parameters, such as cutting speed, depth, and angle, striving for neat, smooth cuts and accurate dimensions to obtain a standard-compliant bladder that ensures stable performance in various applications, including vehicle suspension systems. However, currently, there are no molds specifically designed for cutting bladders, and existing manual cutting methods are insufficient to meet the growing demands for precision and specialization.

[0004] Therefore, the inventors have meticulously designed a brand-new bladder mold to fill this gap, optimize the processing flow of air spring bladders, and improve product quality and production efficiency. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the technical defects in the existing technology, which lacks a mold specifically for cutting air spring bladders and the existing processing methods are difficult to meet the growing demand for precision and specialization. This invention provides a brand-new air spring bladder mold, aiming to fill this gap, optimize the processing flow of air spring bladders, and improve product quality and production efficiency.

[0006] Therefore, this utility model provides a conical mold for an air spring bladder, comprising:

[0007] The main body has a mounting cavity with an opening at the top and elongated openings on both sides that connect to the mounting cavity;

[0008] The central shaft is movable up and down within the mounting cavity, and its top end is always located outside the mounting cavity.

[0009] The first extension piece is sleeved and installed on the main body, with its inner side passing through the elongated opening and fixedly installed on the central axis, and can move up and down along the main body as the central axis moves up and down;

[0010] The extended blades are of several types and are movably connected to the first extended member through the first extended structure; the extended blades have an initial state and an extended state in which they expand outward under the action of the first extended member driving the first extended structure.

[0011] An elastic element is disposed inside the mounting cavity and sleeved on the central shaft, with one end abutting against the inner bottom wall of the mounting cavity and the other end abutting against the first extension element;

[0012] A limiting seat is installed on the main body and is slidably connected to the bottom of the extended blade, used to limit and support the extended blade;

[0013] When a downward pressure is applied to the central shaft, the central shaft drives the first extension member to move downward, and the first extension structure causes the extension blade to expand outward.

[0014] When the downward pressure applied to the central shaft is removed, the central shaft returns to its initial state through the elastic element, and the extended blade retracts inward to its initial state through the first extended structure.

[0015] As a preferred embodiment, the first extended structure includes:

[0016] A first guide member is provided, which is opposite to the extended blade and is fixedly installed on the first extended member in a circumferentially uniform manner. A first guide groove is provided on the first guide member.

[0017] There are several first guide slides, which are fixedly installed on the inner wall of the extended blade. The first guide slides are matched with the first guide groove and can move along the first guide groove.

[0018] As a preferred embodiment, the angle at which the first guide slide is positioned on the inner wall of the extended blade gradually decreases from the top to the bottom, thereby causing the extended blade to expand outward when the first guide slide moves downward along the first guide slide and to retract inward when the first guide slide moves upward along the first guide slide.

[0019] As a preferred embodiment, the first extension includes:

[0020] The first connector is fixedly sleeved on the central shaft, with both ends extending from the elongated openings on both sides to the outside of the main body;

[0021] The first mounting component is sleeved on the main body and fixedly connected to both ends of the first connecting component; the first guide component is mounted on the first mounting component.

[0022] As a preferred embodiment, a limiting member is provided on the top of the limiting seat opposite to the extending blade, and a limiting groove is formed on the limiting member; a limiting slider is installed on the bottom of the extending blade, the limiting slider is matched and installed with the limiting groove, and can move along the limiting groove.

[0023] As a preferred embodiment, it also includes a blocking block, which is mounted on the limiting seat opposite to the limiting member. The mounting position is a certain distance away from the end of the limiting member that is away from the main body, and it can limit the limiting slider on the limiting groove.

[0024] As a preferred option, it also includes:

[0025] The second extension component, fixedly installed on the central shaft at a certain distance from the first extension component, includes a second connector and a second mounting component; the second connector is fixedly sleeved on the central shaft, with both ends extending from the elongated openings on both sides to the outside of the main body component; the second mounting component is sleeved on the main body component and fixedly connected to both ends of the second connector.

[0026] The second extension structure includes a second guide member and a second guide slide. Several second guide members are arranged opposite to the extension blade and are circumferentially and uniformly fixedly installed on the second mounting member. A second guide groove is formed on the second guide member. Several second guide slides are respectively fixedly installed on the inner wall of the extension blade. The second guide slides are matched with the second guide grooves and can move along the second guide grooves. The angle at which the second guide slides are positioned on the inner wall of the extension blade gradually decreases from the top to the bottom, with the distance between them and the main body member decreasing.

[0027] As a preferred embodiment, the elastic element is disposed within the mounting cavity and sleeved on the central shaft, with one end abutting against the inner bottom wall of the mounting cavity, and the other end no longer abutting against the first extension element, but abutting against the second extension element.

[0028] As a preferred embodiment, the main body includes a first main body and a second main body, which are matched and installed together. The top ends are fixedly connected together by a connecting bushing, and the bottom ends are fixedly connected together by a connecting base.

[0029] As a preferred embodiment, a pressing element is provided at the top end of the central shaft, and the outer diameter of the pressing element is larger than the inner diameter of the mounting cavity.

[0030] The technical solution provided by this utility model has the following advantages:

[0031] This utility model discloses a conical mold for an air spring bladder, comprising a main body, a central shaft, a first extension member, extension blades, an elastic member, and a limiting seat. The main body has a mounting cavity with a top opening and elongated openings on both sides communicating with the mounting cavity. The central shaft is movably mounted within the mounting cavity, with its top end always located outside the cavity. The first extension member is fitted onto the main body, its inner side passing through the elongated opening and fixedly mounted on the central shaft, allowing it to move up and down along the main body as the central shaft moves. Several extension blades are movably connected to the first extension member via a first extension structure. The extension blades have an initial state and an extended state where they expand outwards under the action of the first extension member and the first extension structure. The elastic member is disposed within the mounting cavity and fitted onto the central shaft, with one end abutting against the inner bottom wall of the mounting cavity and the other end abutting against the first extension member. The limiting seat is mounted on the main body and slidably connected to the bottom of the extension blades, used to limit and support the extension blades.

[0032] In the processing of air spring bladders, the bladder is first fitted onto the bladder mold according to specifications. After fitting, downward pressure is applied to the central shaft, causing it to move downwards and expand outwards via the first expansion structure, thus bringing the bladder to a predetermined expansion state for subsequent processing. After the bladder is cut according to the pre-planned parting line, the downward pressure on the central shaft is released, and the central shaft returns to its initial state via the elastic element. The expansion blades retract inwards to their initial state via the first expansion structure, and the bladder is then removed from the mold, completing the processing flow. This conical mold for air spring bladders allows for precise control of the bladder's expansion during the cutting process, ensuring the bladder reaches a predetermined state. This meets the stringent requirements of modern industry for product refinement and specialization, improves production quality and efficiency, and provides a reliable guarantee for the high-quality manufacturing of air spring bladders. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the prior art or specific embodiments of this utility model, the accompanying drawings used in the description of the prior art or specific embodiments are briefly introduced below.

[0034] Figure 1 This is a schematic diagram of the overall structure of the conical mold for an air spring bladder according to this utility model.

[0035] Figure 2 yes Figure 1 A schematic diagram of the explosion structure.

[0036] Figure 3 It is Figure 2 A schematic diagram of the exploded structure after the extended blades are removed.

[0037] Figure 4 This is a structural diagram showing the extension blades assembled onto the main body.

[0038] Figure 5 yes Figure 4 Enlarged structural diagram of section B.

[0039] Figure 6 yes Figure 4 A schematic diagram of the explosion structure.

[0040] Figure 7 yes Figure 6 Enlarged structural diagram of part A.

[0041] Figure 8 yes Figure 1 A schematic diagram of the extended blade structure.

[0042] Figure 9 yes Figure 1 A schematic diagram of the structure after the main body and the central shaft are assembled.

[0043] Figure 10 yes Figure 9 A schematic diagram of the explosion structure.

[0044] Reference numerals: 1. Main body component; 11. Mounting cavity; 12. Long strip opening; 13. First main body component; 14. Second main body component; 15. Connecting bushing; 16. Connecting base; 2. Central shaft; 21. Pressing component; 3. First extension component; 31. First connecting component; 32. First mounting component; 4. Extension blade; 5. Elastic component; 6. Limiting seat; 61. Limiting component; 62. Limiting groove; 63. Limiting slider; 64. Blocking block; 7. First guide component; 71. First guide groove; 72. First guide strip; 8. Second extension component; 81. Second connecting component; 82. Second mounting component; 83. Second guide component; 84. Second guide strip; 85. Second guide groove. Detailed Implementation

[0045] To enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0046] It should be noted that the terms "first," "second," etc., in the claims and specification of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such as a process, method, system, product, or device that includes a series of steps or units, not limited to those steps or units explicitly listed, but may also include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0047] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the term "multiple" should mean two or more. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0048] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0049] This embodiment provides a conical mold for an air spring bladder, such as... Figure 1-2As shown in Figure 9, the device includes: a main body 1, a central shaft 2, a first extension 3, an extension blade 4, an elastic element 5, and a limiting seat 6; wherein, the main body 1 has a mounting cavity 11 with a top opening, and elongated openings 12 on both sides communicating with the mounting cavity 11; the central shaft 2 is movably mounted in the mounting cavity 11, and its top end is always located outside the mounting cavity 11; the first extension 3 is sleeved on the main body 1, and its inner side passes through the elongated opening 12 and is fixedly mounted on the central shaft 2, and can follow the up and down movement of the central shaft 2 along the up and down of the main body 1. The device is movable; there are several extension blades 4, which are movably connected to the first extension member 3 through the first extension structure; the extension blades 4 have an initial state and an extended state in which they expand outward under the action of the first extension member 3 driving the first extension structure; the elastic member 5 is disposed in the mounting cavity 11 and sleeved on the central shaft 2, with one end abutting against the inner bottom wall of the mounting cavity 11 and the other end abutting against the first extension member 3; the limiting seat 6 is mounted on the main body 1 and is slidably connected to the bottom of the extension blades 4 for limiting and supporting the extension blades 4.

[0050] When cutting the air spring bladder, the bladder is first fitted onto the bladder mold according to specifications. After fitting the bladder, downward pressure is applied to the central shaft 2, causing the central shaft 2 to move the first extension member 3 downward. The first extension structure causes the extension blades 4 to expand outward, thus bringing the bladder to a predetermined expansion state for subsequent processing. After the bladder is processed, the downward pressure on the central shaft 2 is released, and the central shaft 2 returns to its initial state via the elastic member 5. The extension blades 4 retract inward to their initial state via the first extension structure. Then, the bladder is removed from the bladder mold, completing the processing flow. The conical mold for air spring bladders in this embodiment can precisely control the outward expansion of the bladder during the cutting process, ensuring the bladder reaches a predetermined state. This meets the stringent requirements of modern industry for product refinement and specialization, improves production quality and efficiency, and provides a reliable guarantee for the high-quality manufacturing of air spring bladders.

[0051] The first expansion structure includes a first guide member 7 and a first guide slide 72. Several first guide members 7 are arranged opposite to the expansion blade 4 and are circumferentially and uniformly fixedly installed on the first expansion member 3. A first guide groove 71 is formed on the first guide member 7. Several first guide slides 72 are respectively fixedly installed on the inner wall of the expansion blade 4. The first guide slides 72 are matched with the first guide grooves 71 and can move along the first guide grooves 71. Through the cooperation of the first guide slides 72 and the first guide grooves 71, the expansion blade 4 can be smoothly expanded and accurately reset, ensuring the precision of the bladder processing and improving production quality.

[0052] like Figure 4 , 7 As shown in Figure 8, the angle at which the first guide slide 72 is set on the inner wall of the extended blade 4 gradually decreases from the top to the bottom, so that when the first guide slide 71 moves downward along the first guide slide 72, the extended blade 4 expands outward; when the first guide slide 71 moves upward along the first guide slide 72, the extended blade 4 retracts inward.

[0053] like Figure 3 As shown, the first extension member 3 includes a first connector 31 and a first mounting member 32; wherein, the first connector 31 is fixedly sleeved on the central shaft 2, and both ends extend from the elongated openings 12 on both sides to the outside of the main body member 1; the first mounting member 32 is sleeved on the main body member 1 and is fixedly connected to both ends of the first connector 31; the first guide member 7 is mounted on the first mounting member 32.

[0054] like Figure 4-5 As shown, a limiting member 61 is provided at the top of the limiting seat 6 opposite to the extending blade 4, and a limiting groove 62 is formed on the limiting member 61; a limiting slider 63 is installed at the bottom of the extending blade 4, and the limiting slider 63 is matched and installed with the limiting groove 62 and can move along the limiting groove 62. Through the matching installation of the limiting slider 63 and the limiting groove 62, the extending blade 4 can be limited and supported, and the stability and accuracy of the movement of the extending blade 4 can be ensured.

[0055] like Figure 5 As shown, it also includes a blocking block 64, which is mounted on the limiting seat 6 opposite to the limiting member 61. The blocking block 64 is installed at a certain distance from the end of the limiting member 61 that is away from the main body 1, and can limit the limiting slider 63 on the limiting groove 62. The blocking block 64 can prevent the extended blade 4 from becoming displaced during movement, which would cause the mold to fail.

[0056] like Figure 6-7As shown, it also includes a second extension member 8 and a second extension structure; wherein, the second extension member 8 is fixedly installed on the central shaft 2 at a certain distance from the first extension member 3, and includes a second connector 81 and a second mounting member 82; the second connector 81 is fixedly sleeved on the central shaft 2, and its two ends extend from the elongated openings 12 on both sides to the outside of the main body member 1; the second mounting member 82 is sleeved on the main body member 1 and fixedly connected to the two ends of the second connector 81; the second extension structure includes a second guide member 83 and a second guide slide 84; several second guide members 83 are provided opposite to the extension blade 4 and are fixedly installed on the second mounting member 82 in a circumferentially uniform manner, and a second guide groove 85 is opened on the second guide member 83; several second guide slides 84 are fixedly installed on the inner wall of the extension blade 4, and the second guide slides 84 are matched and installed with the second guide grooves 85 and can move along the second guide grooves 85; the setting angle of the second guide slides 84 on the inner wall of the extension blade 4 gradually decreases from the top end to the bottom end with the distance from the main body member 1. When the extended blade 4 extends outward, the central shaft 2 drives the second extended member 8 and the second extended structure to move synchronously with the first extended member 3 and the first extended structure. This structure enhances the stability of the extended blade 4 during its movement, ensuring that the extended blade 4 can complete the extension action more smoothly and efficiently.

[0057] The elastic element 5 is disposed within the mounting cavity 11 and sleeved on the central shaft 2. One end abuts against the inner bottom wall of the mounting cavity 11, while the other end no longer abuts against the first extension element 3, but instead abuts against the second extension element 8. The elastic element 5 is used to reset the extension blade 4 to its initial state.

[0058] like Figure 10 As shown, the main body 1 includes a first main body 13 and a second main body 14. The first main body 13 and the second main body 14 are matched and installed together. The top ends are fixedly connected together by a connecting bushing 15, and the bottom ends are fixedly connected together by a connecting base 16. This structure is convenient and simple to assemble and disassemble, and is easy to maintain and repair.

[0059] A pressing member 21 is provided at the top end of the central shaft 2, and the outer diameter of the pressing member 21 is larger than the inner diameter of the mounting cavity 11. The pressing member 21 ensures that the top end of the central shaft 2 is always located outside the main body 1, thus ensuring continuous use.

[0060] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this innovative technical solution.

Claims

1. A tapered mold for an air spring bladder, characterized by, The utility model relates to a kind of expandable leaf blade, including: Main body piece (1) with the installation cavity (11) of top opening, both sides are provided with the long strip opening (12) of intercommunication installation cavity (11); Center shaft (2) is movably installed in installation cavity (11), and top end is always located outside installation cavity (11); First expansion piece (3) is installed on the main body piece (1), and inside is fixedly installed on the center shaft (2) by long strip opening (12), can move up and down along the main body piece (1) by following the up and down movement of the center shaft (2); Expansion blade (4) is several, and first expansion structure is movably connected with first expansion piece (3);The expansion blade (4) has initial state, and expansion state is expanded outward under the action of first expansion piece (3) driving first expansion structure; Elastic member (5) is arranged in installation cavity (11), and is sleeved on the center shaft (2), one end is abutted with the inner bottom wall of installation cavity (11), and the other end is abutted with first expansion piece (3); Limiting seat (6) is installed on the main body piece (1), and is slidably connected with the bottom of expansion blade (4), for limiting support expansion blade (4); When downward pressure is applied to the center shaft (2), the center shaft (2) drives first expansion piece (3) to move downward, and makes the expansion blade (4) expand outward by first expansion structure; When the downward pressure applied to the center shaft (2) is eliminated, the center shaft (2) is restored to initial state by elastic member (5), and the expansion blade (4) is recovered to initial state by first expansion structure inward.

2. The tapered mold for air spring bag covers of claim 1, wherein, The first expansion structure includes: First guide piece (7) is provided with several, and is fixedly installed on first expansion piece (3) in uniform circumferential direction, and first guide slot (71) is formed in first guide piece (7); First guide slide bar (72) is several, and is fixedly installed on the inner wall of expansion blade (4), and first guide slide bar (72) is matched with first guide slot (71), and can move along first guide slot (71).

3. The tapered mold for air spring bag covers of claim 2, wherein: The setting angle of first guide slide bar (72) on the inner wall of expansion blade (4) gradually decreases from top end to bottom end and the spacing from the main body piece (1), so that when first guide slot (71) moves downward along first guide slide bar (72), the expansion blade (4) expands outward, and when first guide slot (71) moves upward along first guide slide bar (72), the expansion blade (4) is recovered inward.

4. The tapered mold for air spring bag covers of claim 2, wherein, The first expansion piece (3) includes: First connecting piece (31) is fixedly sleeved on the center shaft (2), and both ends are respectively extended to the outside of main body piece (1) from both sides of long strip opening (12); A first mounting member (32) is sleeved on the main body member (1) and fixedly connected with both ends of the first connecting member (31); and the first guide member (7) is mounted on the first mounting member (32).

5. The tapered mold for air spring bag covers of claim 1, wherein: The top of the limiting seat (6) is provided with a limiting member (61) opposite to the expansion blade (4), and a limiting sliding groove (62) is formed in the limiting member (61); the bottom of the expansion blade (4) is mounted with a limiting sliding block (63), the limiting sliding block (63) is mounted in matching with the limiting sliding groove (62) and can move along the limiting sliding groove (62).

6. The tapered mold for air spring bag covers of claim 5, wherein: Further comprising a blocking block (64) mounted on the limiting seat (6) opposite to the limiting member (61), the mounting position is separated from one end of the limiting member (61) away from the main body member (1) by a certain distance, and the limiting sliding block (63) can be limited on the limiting sliding groove (62).

7. The tapered mold for air spring bag covers of claim 1 wherein, Further comprising: A second expansion member (8) is fixedly mounted on the central shaft (2) at a certain distance from the first expansion member (3) and comprises a second connecting member (81) and a second mounting member (82); the second connecting member (81) is fixedly sleeved on the central shaft (2) and has both ends extending to the outside of the main body member (1) from the two long strip openings (12) respectively; the second mounting member (82) is sleeved on the main body member (1) and fixedly connected with both ends of the second connecting member (81); A second expansion structure comprises a second guide member (83) and a second guide sliding strip (84); the second guide member (83) is provided with a plurality of second guide members (83) opposite to the expansion blade (4) and fixedly mounted on the second mounting member (82) uniformly in the circumferential direction, and a second guide sliding groove (85) is formed in the second guide member (83); the second guide sliding strip (84) is provided with a plurality of second guide sliding strips (84) fixedly mounted on the inner wall of the expansion blade (4), the second guide sliding strip (84) is mounted in matching with the second guide sliding groove (85) and can move along the second guide sliding groove (85); the angle of the second guide sliding strip (84) provided on the inner wall of the expansion blade (4) gradually decreases from the top end to the bottom end.

8. The tapered mold for air spring bag covers of claim 7, wherein: The elastic member (5) is arranged in the mounting cavity (11) and sleeved on the central shaft (2), one end abuts against the inner bottom wall of the mounting cavity (11), and the other end no longer abuts against the first expansion member (3) but abuts against the second expansion member (8).

9. The tapered mold for air spring bag covers of claim 1, wherein: The main body member (1) comprises a first main body member (13) and a second main body member (14), the first main body member (13) and the second main body member (14) are mounted in matching, the top ends are fixedly connected together through a connecting shaft sleeve (15), and the bottom ends are fixedly connected together through a connecting base (16).

10. The tapered mold for air spring bag covers of claim 1, wherein: The top end of the central shaft (2) is provided with a pressing member (21), and the outer diameter of the pressing member (21) is greater than the inner diameter of the mounting cavity (11).

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