Post-cure inflation device and tire production apparatus

Abstract

A post-cure inflation device and a tire production apparatus. The post-cure inflation device comprises a frame body (100), an upper cross beam mechanism (200), a lower cross beam mechanism (300), a lead screw (1), a driving nut (2), a driving assembly (3) and a limiting assembly (4). The lower cross beam mechanism (300) is arranged on the frame body (100), and the upper cross beam mechanism (200) and the lower cross beam mechanism (300) can cooperate with each other to inflate a tire. The lead screw (1) is slidably arranged on the frame body (100) in the vertical direction, the upper cross beam mechanism (200) being arranged at the lower end of the lead screw (1). The driving nut (2) is rotatably arranged on the frame body (100) and is in threaded fit with the lead screw (1). The driving assembly (3) is arranged on the frame body (100), the driving assembly (3) being configured to drive the driving nut (2) to rotate forward and backward so as to drive the lead screw (1) to ascend or descend. The limiting assembly (4) is provided on the frame body (100), the limiting assembly (4) being configured to limit the rotation of the driving nut (2).

Description

Post-inflation device and tire production equipment

[0001] This application claims priority to the Chinese patent application No. 202422276376.7 filed on September 18, 2024 with the Chinese Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of tire manufacturing technology, for example to a post-inflation device and tire production equipment. BACKGROUND

[0003] The post-inflation device is a device used in the curing process of tire production, and is one of the key devices that determine the quality of the tire. The post-inflation device in the related art usually adopts a hydraulic transmission mode. The hydraulic transmission mode has fast response speed and high efficiency, and can realize stepless speed regulation. However, the hydraulic transmission mode is prone to affect the stability and safety of the post-inflation device due to oil leakage, pipe burst and other reasons, thereby causing certain safety hazards in the tire production process. SUMMARY

[0004] The present application provides a post-inflation device and tire production equipment, which makes the stability and safety of the post-inflation device better, thereby avoiding safety hazards in the tire production process.

[0005] The present application provides a post-inflation device, which comprises a frame body, an upper beam mechanism and a lower beam mechanism, the lower beam mechanism is arranged on the frame body, the upper beam mechanism and the lower beam mechanism can cooperate with each other to inflate the tire, and the post-inflation device further comprises:

[0006] A lead screw is arranged on the frame body in a vertical sliding manner, and the upper beam mechanism is arranged at the lower end of the lead screw;

[0007] A driving nut is arranged on the frame body in a rotating manner and threadedly cooperates with the lead screw;

[0008] A driving assembly is arranged on the frame body, and the driving assembly is configured to drive the driving nut to rotate forward and backward, so as to drive the lead screw to ascend and descend;

[0009] A limiting assembly is arranged on the frame body, and the limiting assembly is configured to limit the rotation of the driving nut.

[0010] The present application also provides a tire production equipment, which comprises the post-inflation device and a transfer mechanism, and the transfer mechanism is configured to supply the post-inflation device with tires. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 is a structural schematic view of the post-inflation device according to the present application.

[0012] Fig. 2 is a schematic view of a rear inflating device according to the present application;

[0013] Fig. 3 is an enlarged view of A in Fig. 2;

[0014] Fig. 4 is a schematic view of a tire production device according to the present application.

[0015] In the drawings: 100, frame body; 200, upper beam mechanism; 300, lower beam mechanism; 1, lead screw; 2, driving nut; 3, driving assembly; 31, transmission gear; 32, driving gear; 33, driving member; 4, limiting assembly; 41, limiting hole; 42, limiting rod; 43, power member; 5, guiding assembly; 51, sliding sleeve; 52, sliding rod; 6, rear inflating device; 7, transfer mechanism; 8, tire production device. DETAILED DESCRIPTION

[0016] In the present application, the terms "comprising", "containing", "having" or any other similar words are intended to encompass non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0017] In the present application, the term "and / or" is a description of the association relationship between the associated objects, which means that there can be three kinds of relationships. For example, a device includes A and / or B, which can represent: the device includes A, the device includes A and B, and the device includes B. In addition, the character " / " in the present application generally represents that the front and rear associated objects are in a "and / or" relationship.

[0018] In the present application, the terms "connection", "combination", "coupling", "mounting" can be direct connection, combination, coupling or mounting, or indirect connection, combination, coupling or mounting. For example, direct connection means that two parts or components are connected together without the need for an intermediate part, indirect connection means that two parts or components are connected with at least one intermediate part, and the two parts or components are connected through the intermediate part. In addition, "connection" and "coupling" can be physical or mechanical connection or coupling, or can include electrical connection or coupling.

[0019] In this application, those of ordinary skill in the art can understand that the relative terms used in conjunction with quantities or conditions (for example, "about", "approximately", "substantially" and the like) include the values described and have the meanings indicated by the context. For example, the relative terms at least include the degree of error related to the measurement of a specific value, the tolerance caused by manufacturing, assembly, use and the like related to a specific value. Such terms should also be considered to disclose the range defined by the absolute values of the two endpoints. The relative terms can refer to the addition or subtraction of a certain percentage (for example, 1%, 5%, 10% or more) of the indicated value. The numerical values not using the relative terms should also be disclosed as specific values with tolerances. In addition, "substantially" when expressing the relative angular positional relationship (for example, substantially parallel, substantially perpendicular), can refer to the addition or subtraction of a certain degree (for example, 1 degree, 5 degrees, 10 degrees or more) based on the indicated angle.

[0020] In this application, those of ordinary skill in the art can understand that the functions performed by the components can be performed by one component or multiple components. Similarly, the functions performed by the parts can also be performed by one part or a combination of multiple parts.

[0021] In this application, the terms "upper", "lower", "left", "right", "front", "back" and the like are described in the orientation and positional relationship shown in the drawings. In addition, in the context, when referring to one element connected to another element "on" or "under", it can not only be directly connected to another element "on" or "under", but also indirectly connected to another element "on" or "under" through an intermediate element. The orientation of the upper side, the lower side, the left side, the right side, the front side and the back side not only represents the positive direction, but also can be understood as the side direction. For example, the lower side can include the directly below, the left below, the right below, the front below and the back below and the like.

[0022] Please refer to FIG. 1 to FIG. 3, the embodiment provides a rear inflator, the rear inflator includes a frame body 100, an upper beam mechanism 200 and a lower beam mechanism 300, the lower beam mechanism 300 is arranged on the frame body 100, the upper beam mechanism 200 and the lower beam mechanism 300 can cooperate with each other to inflate the tire. The rear inflator further includes a lead screw 1, a driving nut 2, a driving assembly 3 and a limiting assembly 4, the lead screw 1 is arranged on the frame body 100 in the vertical direction, and the upper beam mechanism 200 is arranged at the lower end of the lead screw 1. The driving nut 2 is arranged on the frame body 100 and threadedly cooperates with the lead screw 1. The driving assembly 3 is arranged on the frame body 100, and the driving assembly 3 is configured to drive the driving nut 2 to reverse rotation, so as to drive the lead screw 1 to ascend and descend. The limiting assembly 4 is arranged on the frame body 100, and the limiting assembly 4 is configured to limit the rotation of the driving nut 2.

[0023] In actual application, the tire is first placed on the lower beam mechanism 300, and then the driving assembly 3 drives the driving nut 2 to rotate to drive the lead screw 1 to descend, and then the lead screw 1 drives the upper beam mechanism 200 to descend, so that the upper beam mechanism 200 is located at a working position capable of cooperating with the lower beam mechanism 300 to inflate the tire, and then the limiting assembly 4 limits the rotation of the driving nut 2, and then the upper beam mechanism 200 cooperates with the lower beam mechanism 300 to inflate the tire, and after vulcanization is completed, the limiting assembly 4 cancels the limitation of the driving nut 2, and the driving assembly 3 drives the driving nut 2 to reverse rotation to drive the upper beam mechanism 200 to reset.

[0024] The driving structure composed of the lead screw 1 and the driving nut 2 has better stability and safety than the hydraulic transmission mode in the related art, and can avoid safety hazards in the tire production process. The upper beam mechanism 200 and the lower beam mechanism 300 can adopt related structures known to those skilled in the art, and thus will not be described in detail.

[0025] Optionally, the driving assembly 3 includes a transmission gear 31, a driving gear 32, and a driving member 33. The transmission gear 31 is coaxially arranged on the driving nut 2. The driving gear 32 is rotationally arranged on the frame 100, and the transmission gear 31 is engaged with the driving gear 32. The driving member 33 is arranged on the frame 100, and is configured to drive the driving gear 32 to rotate forward and reverse. The gear transmission structure composed of the transmission gear 31 and the driving gear 32 can make the structure of the driving assembly 3 more compact, with high transmission efficiency and high transmission precision.

[0026] In some embodiments, the driving member 33 is a servo motor, and the driving gear 32 is sleeved on the output shaft of the servo motor. The servo motor is used to drive the driving gear 32 to rotate, which is energy-efficient and stable in operation. The model of the servo motor can be selected according to the actual application scenario. In other embodiments, the driving member 33 can also adopt any mechanism with a rotating driving function in the related art, which will not be described in detail.

[0027] Optionally, the limiting assembly 4 includes a limiting hole 41, a limiting rod 42, and a power member 43. The limiting hole 41 is arranged on the transmission gear 31. The limiting rod 42 is vertically slidably arranged on the frame 100, and the lower end of the limiting rod 42 can be inserted into the limiting hole 41. The power member 43 is arranged on the frame 100, and is configured to drive the limiting rod 42 to ascend and descend. In this way, the lower end of the limiting rod 42 is inserted into the limiting hole 41, which can limit the rotation of the driving nut 2, and the structure is simple and the use cost is low.

[0028] Any angle of rotation of the driving nut 2 can correspondingly drive the lead screw 1 to lift a distance, that is, any angle of rotation of the driving nut 2 can correspondingly drive the upper beam mechanism 200 to lift a distance. Therefore, in order to accurately limit the upper beam mechanism 200 to the preset working position, a plurality of limiting holes 41 are arranged in the embodiment, and the plurality of limiting holes 41 are uniformly distributed around the circumferential side of the transmission gear 31 along the axis of the transmission gear 31.

[0029] In order to improve the convenience of inserting the lower end of the limiting rod 42 into the limiting hole 41, the lower end of the limiting rod 42 is chamfered to form a guide surface. In other embodiments, a guide surface is arranged at the aperture of the limiting hole 41, which can also achieve the same function, and the embodiment will not be repeated here.

[0030] In some embodiments, the power member 43 is a gas cylinder, and the extension part of the gas cylinder moves in the vertical direction, and the upper end of the limiting rod 42 is connected with the extension part. The gas cylinder drives the limiting rod 42 to move, which has simple structure and low use cost. In other embodiments, the power member 43 can adopt any linear driving mechanism in related technologies, such as an electric cylinder, a linear module, etc.

[0031] In order to improve the sliding smoothness of the upper beam mechanism 200, the rear inflation device further comprises a guide assembly 5, which is arranged on the frame 100 and is configured to guide the upper beam mechanism 200 to lift. Optionally, the guide assembly 5 comprises a sliding sleeve 51 and a sliding rod 52. The sliding sleeve 51 is arranged on the frame 100. The sliding rod 52 is in sliding cooperation with the sliding sleeve 51, and the lower end of the sliding rod 52 is connected with the upper beam mechanism 200.

[0032] As shown in FIG. 4, the embodiment further provides a tire production equipment 8, which comprises the rear inflation device 6 and the transfer mechanism 7. The transfer mechanism 7 is configured to supply the tire to the rear inflation device 6. The tire production equipment 8 comprising the rear inflation device 6 has better stability and safety, and can avoid safety hazards in the tire production process.

Claims

1. A rear inflating device, comprising a frame (100), an upper beam mechanism (200) and a lower beam mechanism (300), the lower beam mechanism (300) being arranged on the frame (100), the upper beam mechanism (200) and the lower beam mechanism (300) being capable of cooperating with each other to inflate a tire, the rear inflating device further comprising: a lead screw (1) being arranged on the frame (100) in a vertical direction, the upper beam mechanism (200) being arranged at a lower end of the lead screw (1); a driving nut (2) being arranged on the frame (100) in a rotating manner and being threadedly engaged with the lead screw (1); a driving assembly (3) being arranged on the frame (100), the driving assembly (3) being configured to drive the driving nut (2) to rotate in a forward direction or a reverse direction, so as to drive the lead screw (1) to ascend or descend; a limiting assembly (4) being arranged on the frame (100), the limiting assembly (4) being configured to limit the driving nut (2) from rotating.

2. The rear inflator device according to claim 1, wherein, the driving assembly (3) comprising: a transmission gear (31) being coaxially arranged on the driving nut (2); a driving gear (32) being arranged on the frame (100) in a rotating manner, the transmission gear (31) being engaged with the driving gear (32); a driving member (33) being arranged on the frame (100), the driving member (33) being configured to drive the driving gear (32) to rotate in a forward direction or a reverse direction.

3. The rear inflator device according to claim 2, wherein, the driving member (33) is a servo motor, and the driving gear (32) is sleeved on an output shaft of the servo motor.

4. The rear inflator device of claim 2, wherein, the limiting assembly (4) comprising: a limiting hole (41) being arranged on the transmission gear (31); a limiting rod (42) being arranged on the frame (100) in a vertical direction, a lower end of the limiting rod (42) being capable of being inserted into the limiting hole (41); a power member (43) being arranged on the frame (100), the power member (43) being configured to drive the limiting rod (42) to ascend or descend.

5. The rear inflator device of claim 4, wherein, a plurality of limiting holes (41) are arranged, and the plurality of limiting holes (41) are uniformly distributed on a circumferential side of the transmission gear (31) around an axis of the transmission gear (31).

6. The rear inflator device of claim 4, wherein, the power member (43) is a pneumatic cylinder, a telescopic part of the pneumatic cylinder moves in a vertical direction, and an upper end of the limiting rod (42) is connected to the telescopic part.

7. The rear inflator device of claim 4, wherein, a guide surface is formed on the lower end of the limiting rod (42) by chamfering.

8. The rear inflating device according to claim 1, further comprising: a guide assembly (5) being arranged on the frame (100), the guide assembly (5) being configured to guide the upper beam mechanism (200) to ascend or descend.

9. The rear inflator device of claim 8, wherein, the guide assembly (5) comprising: a sliding sleeve (51) being arranged on the frame (100). A slide bar (52) is in sliding cooperation with the slide sleeve (51), and a lower end of the slide bar (52) is connected with the upper cross beam mechanism (200).

10. A tyre production plant comprising a post-inflation device (6) according to any one of claims 1-9 and a transfer mechanism (7) configured to feed the post-inflation device (6) with tyres.

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