Post cure inflator and tire production apparatus

Abstract

A post cure inflator and a tire production apparatus. The post cure inflator comprises a frame (1), an upper crossbeam mechanism (2), a lower crossbeam mechanism (3), a lifting lead screw (4), a lead screw nut, a worm gear, a worm (5), and a driving member (6), wherein the lower crossbeam mechanism (3) is arranged on the frame (1); the upper crossbeam mechanism (2) and the lower crossbeam mechanism (3) can cooperate with each other to inflate a tire; the lifting lead screw (4) is slidably arranged on the frame (1) in a vertical direction; the upper crossbeam mechanism (2) is arranged at the lower end of the lifting lead screw (4); the lead screw nut is rotatably arranged on the frame (1) and is in threaded fit with the lifting lead screw (4); the worm gear is coaxially sleeved on the lead screw nut; the worm (5) is rotatably arranged on the frame (1) and engages with the worm gear; and the driving member (6) is arranged on the frame (1) and is configured to drive the worm (5) to rotate.

Description

Post-inflation device and tire production equipment

[0001] The present application claims priority to the Chinese patent application No. 202422276215.8 filed on September 18, 2024 with the China 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 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:

[0006] a frame body;

[0007] an upper beam mechanism and a lower beam mechanism, the lower beam mechanism being arranged on the frame body, and the upper beam mechanism and the lower beam mechanism being capable of cooperating with each other to inflate a tire;

[0008] a lifting lead screw, the lifting lead screw being arranged on the frame body in a sliding manner along a vertical direction, and the upper beam mechanism being arranged at a lower end of the lifting lead screw;

[0009] a lead screw nut, the lead screw nut being arranged on the frame body in a rotating manner and being threadedly engaged with the lifting lead screw;

[0010] a worm gear, the worm gear being coaxially sleeved on the lead screw nut;

[0011] a worm, the worm being arranged on the frame body in a rotating manner and being engaged with the worm gear;

[0012] a driving member, the driving member being arranged on the frame body, and the driving member being configured to drive the worm to rotate.

[0013] The application also provides a tire production device, comprising the above-mentioned post-inflation device and a transfer mechanism, the transfer mechanism being configured to supply the post-inflation device with tires. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a structural schematic diagram of a post-inflation device provided by the application;

[0015] Fig. 2 is a structural schematic diagram of a connecting rod provided by the application;

[0016] Fig. 3 is an enlarged view of A in Fig. 1;

[0017] Fig. 4 is a structural schematic diagram of a tire production device provided by the application.

[0018] In the drawings: 1, frame body; 11, upper cross beam; 12, lower cross beam; 13, connecting rod; 131, rod body; 132, first connecting part; 133, first nut; 134, second connecting part; 135, second nut; 136, first gasket; 137, second gasket; 138, third gasket; 139, fourth gasket; 2, upper cross beam mechanism; 3, lower cross beam mechanism; 4, lifting screw; 5, worm; 6, driving piece; 7, guide assembly; 71, sliding sleeve; 72, sliding rod; 73, connecting piece; 74, reinforcing piece; 100, tire production device; 10, post-inflation device; 20, transfer mechanism. DETAILED DESCRIPTION

[0019] 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 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 existence of other identical elements in the process, method, article or device including the element.

[0020] 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.

[0021] In this application, the terms "connected", "coupled", "attach", "mount", can be direct connection, combination, coupling or mounting, or indirect connection, combination, coupling or mounting. For example, direct connection refers to two parts or components connected together without the need to set intermediate parts, indirect connection refers to two parts or components 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.

[0022] In this application, those of ordinary skill in the art can understand that the relative terms used in connection with the number or condition (for example, "about", "approximately", "substantially" and the like) include the values 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, etc. 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 term can refer to the indicated value plus or minus a certain percentage (for example, 1%, 5%, 10% or more). The numerical value without the relative term should also be disclosed as a specific value with a tolerance. In addition, "substantially" when expressing the relative angular position relationship (for example, substantially parallel, substantially perpendicular), can refer to plus or minus a certain degree (for example, 1 degree, 5 degrees, 10 degrees or more) based on the indicated angle.

[0023] 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.

[0024] In this application, the terms "up", "down", "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 an element connected to another element "up" or "down", it can not only be directly connected to another element "up" or "down", but also indirectly connected to another element "up" or "down" 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 can not only represent the positive direction, but also 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, etc.

[0025] Referring to FIGS. 1-3, the embodiment provides a rear inflator device, which includes a frame 1, an upper beam mechanism 2, a lower beam mechanism 3, a lifting screw rod 4, a screw rod nut, a worm gear, a worm 5, and a driving member 6. The lower beam mechanism 3 is arranged on the frame 1, and the upper beam mechanism 2 and the lower beam mechanism 3 can cooperate with each other to inflate the tire. The lifting screw rod 4 is arranged on the frame 1 in a vertical sliding manner, and the upper beam mechanism 2 is arranged at the lower end of the lifting screw rod 4. The screw rod nut is arranged on the frame 1 in a rotating manner and is threadedly connected with the lifting screw rod 4. The worm gear is coaxially sleeved on the screw rod nut. The worm 5 is arranged on the frame 1 in a rotating manner and is engaged with the worm gear. The driving member 6 is arranged on the frame 1, and the driving member 6 is configured to drive the worm 5 to rotate.

[0026] In actual application, the tire is first placed on the lower beam mechanism 3, and then the driving member 6 drives the worm 5 to rotate, so as to drive the worm gear to rotate, and then the screw rod nut is driven to rotate by the worm gear, and then the screw rod nut drives the screw rod to descend, and then the upper beam mechanism 2 is driven to descend by the screw rod, so that the upper beam mechanism 2 is located at a working position capable of cooperating with the lower beam mechanism 3 to inflate the tire, and then the upper beam mechanism 2 and the lower beam mechanism 3 cooperate with each other to inflate the tire. After vulcanization is completed, the driving member 6 drives the worm 5 to rotate in the opposite direction, so as to drive the upper beam mechanism 2 to reset.

[0027] The transmission structure composed of the worm gear, the worm 5, the screw rod nut, and the lifting screw rod 4 has better stability and safety than the hydraulic transmission mode in the related art, and can avoid the safety hazard in the tire production process. The upper beam mechanism 2 and the lower beam mechanism 3 can adopt related structures known to those skilled in the art, and thus will not be described in detail. The transmission structure composed of the worm gear and the worm 5 also has a self-locking structure, that is, the worm gear cannot drive the worm 5 to rotate, so that the screw rod can stop at the current position after the driving member 6 stops driving, and thus an additional structure is not needed to limit the position of the screw rod, and the structure is simple and the use cost is low.

[0028] Optionally, the driving member 6 is a servo motor, and an output shaft of the servo motor is coaxially connected with the worm 5. The servo motor is used to drive the worm 5 to rotate, which is energy-saving and stable in operation. The model of the servo motor can be selected according to the actual application scene. In other embodiments, the driving member 6 can also adopt any mechanism with a rotating driving function in the related art, and thus will not be described in detail.

[0029] To improve the smoothness of the sliding of the upper cross beam mechanism 2, the rear inflation device further comprises a guide assembly 7 arranged on the frame body 1, which is configured to guide the lifting of the upper cross beam mechanism 2. Optionally, the guide assembly 7 comprises a sliding sleeve 71, a sliding rod 72 and a connecting piece 73. The sliding sleeve 71 is arranged on the frame body 1. The sliding rod 72 is in sliding cooperation with the sliding sleeve 71, and the lower end of the sliding rod 72 is connected with the upper cross beam mechanism 2. The lower end of the sliding rod 72 is connected with the upper cross beam mechanism 2 through the connecting piece 73. In some optional embodiments, the guide assembly 7 further comprises a reinforcing piece 74 arranged on the connecting piece 73. In this way, the structural strength of the connecting piece 73 can be improved.

[0030] Optionally, the frame body 1 comprises an upper cross beam 11, a lower cross beam 12 and a connecting rod 13. The lifting lead screw 4, the screw nut, the worm gear, the worm 5 and the driving piece 6 are all arranged on the upper cross beam 11. The lower cross beam 12 is directly below the upper cross beam 11, and the lower cross beam mechanism 3 is arranged on the lower cross beam 12. The upper cross beam 11 and the lower cross beam 12 are connected into one body through the connecting rod 13. In this way, the frame body 1 can have a more compact structure and lower cost. In this embodiment, the upper cross beam 11 and the lower cross beam 12 can be hollow square tubes in the related art, so as to reduce the weight of the frame body 1 and facilitate the assembly and transportation of the frame body 1.

[0031] In some optional embodiments, the connecting rod 13 is provided with two, and the end portions of the upper cross beam 11 and the lower cross beam 12 on the same side are connected into one body through the same connecting rod 13. In this way, the frame body 1 has a square frame structure and higher structural strength.

[0032] In this embodiment, the two connecting rods 13 have the same structure, and the structure of one of the connecting rods 13 will be described below. The connecting rod 13 comprises a rod body 131, a first connecting portion 132, a first nut 133, a second connecting portion 134 and a second nut 135. The first connecting portion 132 is arranged at the upper end of the rod body 131. The first connecting portion 132 can pass through the end portion of the upper cross beam 11 and be screwed with the first nut 133, so as to abut the two sides of the upper cross beam 11 through the first nut 133 and the upper end face of the rod body 131 respectively. The second connecting portion 134 is arranged at the lower end of the rod body 131. The second connecting portion 134 can pass through the end portion of the lower cross beam 12 and be screwed with the second nut 135, so as to abut the two sides of the lower cross beam 12 through the second nut 135 and the lower end face of the rod body 131 respectively.

[0033] In some optional embodiments, the connecting rod 13 further comprises a first gasket 136, a second gasket 137, a third gasket 138, and a fourth gasket 139. The first gasket 136 is arranged between the first nut 133 and the upper cross beam 11. The second gasket 137 is arranged between the upper end surface of the rod body 131 and the upper cross beam 11. The third gasket 138 is arranged between the lower end surface of the rod body 131 and the lower cross beam 12. The fourth gasket 139 is arranged between the second nut 135 and the lower cross beam 12. The first gasket 136 can increase the contact area between the first nut 133 and the upper cross beam 11, thereby improving the connection strength between the first nut 133 and the upper cross beam 11. The second gasket 137 can increase the contact area between the upper end surface of the rod body 131 and the upper cross beam 11, thereby improving the connection strength between the upper end surface of the rod body 131 and the upper cross beam 11. The third gasket 138 can increase the contact area between the lower end surface of the rod body 131 and the lower cross beam 12, thereby improving the connection strength between the lower end surface of the rod body 131 and the lower cross beam 12. The fourth gasket 139 can increase the contact area between the second nut 135 and the lower cross beam 12, thereby improving the connection strength between the second nut 135 and the lower cross beam 12. The types of the first gasket 136, the second gasket 137, the third gasket 138, and the fourth gasket 139 can be selected according to actual application scenarios.

[0034] The embodiment further provides a tire production device 100 comprising the above-described post-inflation device 10. In some optional embodiments, as shown in FIG. 4, the tire production device 100 comprises the above-described post-inflation device 10 and a transfer mechanism 20 configured to supply the post-inflation device 10 with tires. The tire production device 100 comprising the post-inflation device 10 has better stability and safety, thereby avoiding potential safety hazards in the tire production process.

Claims

1. A rear inflating device, comprising: a frame body (1); an upper beam mechanism (2) and a lower beam mechanism (3), the lower beam mechanism (3) being arranged on the frame body (1), the upper beam mechanism (2) and the lower beam mechanism (3) being capable of cooperating with each other to inflate a tire; a lifting screw rod (4) being arranged on the frame body (1) in a vertical sliding manner, the upper beam mechanism (2) being arranged at a lower end of the lifting screw rod (4); a screw rod nut being rotationally arranged on the frame body (1) and threadedly cooperating with the lifting screw rod (4); a worm gear being coaxially sleeved on the screw rod nut; a worm (5) being rotationally arranged on the frame body (1) and meshing with the worm gear; a driving member (6) being arranged on the frame body (1), the driving member (6) being configured to drive the worm (5) to rotate.

2. The rear inflator device according to claim 1, wherein, The driving member (6) is a servo motor, an output shaft of the servo motor being coaxially connected with the worm (5).

3. The rear inflating device according to claim 1, further comprising: a guide assembly (7) being arranged on the frame body (1), the guide assembly (7) being configured to guide the upper beam mechanism (2) to lift.

4. The rear inflator device according to claim 3, wherein The guide assembly (7) comprises: a sliding sleeve (71) being arranged on the frame body (1); a sliding rod (72) being in sliding cooperation with the sliding sleeve (71); a connecting member (73), a lower end of the sliding rod (72) being connected with the upper beam mechanism (2) through the connecting member (73).

5. The rear inflator device of claim 4, wherein, The guide assembly (7) further comprises: a reinforcing member (74) being arranged on the connecting member (73).

6. The post-inflating device of claim 1, wherein, The frame body (1) comprises: an upper beam (11), the lifting screw rod (4), the screw rod nut, the worm gear, the worm (5) and the driving member (6) being arranged on the upper beam (11); a lower beam (12) being located directly below the upper beam (11), the lower beam mechanism (3) being arranged on the lower beam (12); a connecting rod (13), the upper beam (11) and the lower beam (12) being connected into an integrated body through the connecting rod (13).

7. The rear inflator device of claim 6, wherein, Two connecting rods (13) are arranged, the end portions of the upper beam (11) and the lower beam (12) on the same side being connected into an integrated body through the same connecting rod (13).

8. The rear inflator device according to claim 7, wherein, The connecting rod (13) comprises: a rod body (131); a first connecting portion (132) being arranged at an upper end of the rod body (131); a first nut (133), the first connecting portion (132) being capable of penetrating through the end portion of the upper beam (11) and being screwed with the first nut (133) so as to abut the upper beam (11) on both sides through the first nut (133) and the upper end face of the rod body (131), respectively. A second connecting portion (134) is arranged at the lower end of the rod body (131); A second nut (135) is arranged at the end of the lower cross beam (12), and the second connecting portion (134) is screwed with the second nut (135) so that the lower end surface of the rod body (131) respectively abuts against both sides of the lower cross beam (12) through the second nut (135).

9. A tire production plant comprising a post-inflation device (10) according to any one of claims 1-8 and a transfer mechanism (20) configured to feed the post-inflation device (10) with tires.

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