The bonding mechanism that fixes the material head to the bonding drum and the tire forming machine containing it

Abstract

This utility model provides a bonding mechanism for fixing a material head to a bonding drum, including a support frame, two sets of fixing frames, two sets of receiving components mounted on the fixing frames, and a pressure plate assembly detachably disposed between the two sets of receiving components. Each receiving component includes a fixing member, a first limiting member and a second limiting member disposed at a certain interval on the fixing member, and a receiving space. The receiving space has a space inlet end and a space outlet end, an outlet element rotatably disposed via a swing mechanism, and an inlet element elastically disposed via a limiting mechanism. This utility model primarily provides a bonding mechanism that uses an elastically disposed inlet element via a limiting mechanism and an outlet element rotatably disposed via a swing mechanism, allowing the pressure plate assembly to smoothly enter and slide out of the receiving space, rotating with the bonding drum. This effectively avoids technical problems such as jamming, failure, and material detachment of the pressure plate assembly during the bonding of the strip to the bonding drum.

Description

Technical Field

[0001] This utility model relates to the field of tire production equipment, and in particular to a bonding mechanism for fixing a strip material head to a bonding drum and a tire forming machine containing the bonding mechanism. Background Technology

[0002] During the tire forming process, a strip needs to be wound onto a bonding drum for bonding. During this bonding process, once the strip head is wound onto the bonding drum, it needs to be secured to prevent displacement or detachment due to the drum's rotation. Such misalignment would affect the bonding quality of the strip or prevent the tire forming process from being completed.

[0003] The existing bonding mechanism uses a movable magnetic pressure plate. After the strip material head is placed on the bonding drum, the magnetic pressure plate is placed on the drum to fix the strip material head. After the strip is wound, the magnetic pressure plate is retracted and stored in a receiving mechanism. When the next strip material needs to be bonded, the magnetic pressure plate is released from the receiving mechanism. To ensure smooth operation of the entire bonding mechanism, the entrance of the receiving mechanism can be opened freely when the magnetic pressure plate enters, but the entrance of the receiving mechanism must be ensured to be unable to be opened after the magnetic pressure plate enters; otherwise, the magnetic pressure plate will detach from the receiving mechanism.

[0004] Existing bonding mechanisms typically open or close the entrance to the receiving mechanism in two conventional ways. One method involves a simple spring mechanism. However, when using a spring connection, the spring bends during the opening process, generating lateral force. This reduces the force acting on the entrance, potentially failing to meet requirements. Furthermore, the spring is prone to failure due to deformation caused by lateral force, resulting in it not being able to spring back. Consequently, once the magnetic pressure plate enters the receiving mechanism through the entrance, the entrance cannot close, and the magnetic pressure plate will detach.

[0005] Another method is to set the opening and closing of the inlet pneumatically. However, this method also has uncertainties. If the external air supply is suddenly cut off, the inlet will lose its pulling force and the magnetic pressure plate may be thrown out or fall off, posing a great safety hazard. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a bonding mechanism with higher reliability for fixing the material head to the bonding drum. The mechanism includes a support frame, support brackets symmetrically arranged at both ends of the support frame, two sets of fixed brackets movably mounted on the support brackets via two sets of moving mechanisms, and two sets of receiving assemblies respectively mounted on the two sets of fixed brackets. A pressure plate assembly is detachably arranged between the receiving assemblies. Each receiving assembly includes a fixing member, a first limiting member and a second limiting member arranged at a certain interval on the fixing member, and a receiving space. The receiving space has a space inlet end and a space outlet end, and also includes an outlet element disposed near the space outlet end, which is rotatably disposed via a swing mechanism; and an inlet element disposed near the space inlet end, which is elastically disposed via a limiting mechanism.

[0007] Preferably, the limiting mechanism includes a support element rotatably mounted on a fixed frame, a central shaft rotatably mounted relative to the inlet element, the support element having a limiting hole, one end of the central shaft being connected to the inlet element, the other end of the central shaft passing through the limiting hole, and an elastic element sleeved on the central shaft, the elastic element being disposed on a partial central shaft between the inlet element and the limiting hole.

[0008] Preferably, the inlet component is provided with a fastener, the central shaft has a shaft end and a rotating end connected together, the rotating end is rotatably mounted on the fastener through a bearing component, and the elastic element is sleeved on the shaft end.

[0009] Preferably, the inlet element includes a first inlet setting end, a second inlet setting end, and an inlet working end, wherein the first inlet setting end is hinged to the fixing member, the second inlet setting end is hinged to the limiting mechanism, and the inlet working end is inclined to the moving direction of the pressure plate assembly.

[0010] Preferably, the outlet element includes a first outlet setting end, a second outlet setting end, and an outlet working end, wherein the first outlet setting end is hinged to a fixing member, the second outlet setting end is hinged to a swing mechanism, one end of the swing mechanism is fixedly mounted on the fixing member, and the other end of the swing mechanism is hinged to the second outlet setting end.

[0011] Preferably, the moving mechanism includes a rotatable swing frame mounted on a support frame, a swing drive source mounted on the support frame, the drive end of the swing drive source being connected to the swing frame, and a telescopic drive source mounted on the swing frame, the drive end of the telescopic drive source being connected to a fixed frame.

[0012] Preferably, the pressure plate assembly includes a pressure plate member, a magnetic element disposed on the pressure plate member, the magnetic element being disposed near the bonding drum, and a fixing component disposed on the pressure plate member, the fixing component being disposed away from the bonding drum. The fixing component includes a support member movable into the accommodating space, and a connector connecting the support member and the pressure plate member.

[0013] Preferably, the cross-section of the support member includes a circular or arc-shaped structure.

[0014] Preferably, the pressure plate includes an upper pressure plate and a lower pressure plate, and a plurality of pressure elements are disposed between the upper pressure plate and the lower pressure plate. The pressure elements protrude from the upper pressure plate and the lower pressure plate in the circumferential direction of the bonding drum, and the side of the pressure element near the bonding drum has an arc-shaped structure.

[0015] This utility model also provides a tire forming machine, including a bonding drum, a feeding mechanism for providing strip materials, and the bonding mechanism described above, wherein the bonding mechanism is disposed opposite to the bonding drum.

[0016] This invention primarily provides a bonding mechanism, mainly comprising an inlet element elastically set by a limiting mechanism and an outlet element rotatably set by a swing mechanism. This allows the pressure plate assembly to smoothly enter and exit the receiving space, sliding out and rotating with the bonding drum. This effectively avoids technical problems such as jamming, failure, and material slippage during the bonding process of the pressure plate assembly onto the bonding drum. The limiting mechanism, via a central shaft that swings with the inlet element, ensures that the elastic element mounted on the central shaft is compressed only along its length during compression, preventing lateral eccentricity and effectively avoiding lateral forces on the elastic element during use. The bonding mechanism described in this invention offers the advantages of high reliability, simple structure, and strong applicability. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of the bonding mechanism described in this utility model.

[0018] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0019] Figure 3 This is a schematic diagram of the accommodating component that is mounted on the support bracket via a moving mechanism, as described in this utility model.

[0020] Figure 4 for Figure 3 A magnified view of a section at point B, showing that both the inlet and outlet of the accommodating space are closed.

[0021] Figure 5 for Figure 3 A magnified view of a section at point B, showing that the inlet of the accommodating space is open and the outlet is closed.

[0022] Figure 6 for Figure 3 A magnified view of a section at point B, showing that the inlet of the accommodating space is closed and the outlet is open.

[0023] Figure 7 This is a partial view of the inlet element set by the limiting mechanism according to this utility model.

[0024] Figure 8 This is a schematic diagram of the outlet element provided by the swing mechanism according to this utility model.

[0025] Figure 9 This is a partial schematic diagram of the tire forming machine described in this utility model. Detailed Implementation

[0026] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0027] like Figures 1 to 8As shown, this utility model discloses a bonding mechanism 1 for fixing a material head to a bonding drum. The bonding mechanism includes a support frame 11 and support brackets 111 symmetrically arranged at both ends of the support frame. The support brackets 111 and the support frame 11 can be integrally arranged or separately arranged. Two sets of fixing frames 12 are movably arranged on the support brackets 111 by two sets of moving mechanisms 20, and two sets of receiving components 30 are respectively arranged on the two sets of fixing frames 12. A pressure plate assembly 40 is detachably arranged between the two sets of receiving components 30. The receiving component 30 includes a fixing member 31, a first limiting member 32 and a second limiting member 33 arranged at a certain interval on the fixing member 31. The first limiting member 32 and the second limiting member 33 are arranged in parallel. The first limiting member 32, the second limiting member 33 and the fixing member 31 form a receiving space 34 with at least three open sides. The three-sided open design described in this invention refers to the three sides of the accommodating space (the sides where the pressure plate assembly enters, exits, and is adjacent to the pressure plate assembly). The accommodating space 34 is used to store the pressure plate assembly 40. The accommodating space 34 has a space inlet end 341 and a space outlet end 342, and also includes an outlet element 35 disposed near the space outlet end 342. The outlet element 35 is rotatably configured via a swing mechanism 38, used to open and close the space outlet end 342. An inlet element 36 is disposed near the space inlet end 341. The inlet element 36 is elastically configured via a limiting mechanism 37, so that when the inlet element 36 is subjected to force outside the accommodating space 34, it will be pushed to rotate to open the space inlet end 341. When the inlet element 36 is no longer subjected to force, it will reset to close the space inlet end 341. It should be noted that in the above configuration, when the inlet element 36 is subjected to force within the accommodating space 34, the space inlet end 341 is closed and cannot be opened.

[0028] With the above configuration, when the strip material head is placed on the bonding drum 100 and the pressure plate assembly 40 contacts the bonding drum 100, the outlet element 35 is driven by the swing mechanism 38. Figure 5 The state shifted to Figure 6 In the first state, the space outlet end 342 is opened, allowing the pressure plate assembly 40 located within the accommodating space to rotate with the bonding drum 100. The rotational power of the bonding drum 100 drives the pressure plate assembly 40 to separate from the bonding mechanism 1 from the space outlet end 342 of the accommodating space. After the pressure plate assembly 40 rotates one revolution with the bonding drum 100, it contacts the inlet element 36. The rotational power of the bonding drum 100 is applied to the inlet element 36 through the pressure plate assembly 40, further acting on the limiting mechanism 37, causing the inlet element 36 to... Figure 4 The state shown has been rotated to Figure 5The state shown opens the inlet end 341, allowing the pressure plate assembly 40 to enter the receiving space 34. Once the pressure plate assembly 40 is no longer in contact with the inlet element 36 (i.e., the inlet element 36 is no longer under force), the inlet element 36 swings back to its initial position under the action of the limiting mechanism 37, closing the inlet end 341. Before the pressure plate assembly 40 returns to the receiving space 34, the outlet element 35 is driven to swing by the swing mechanism 38, closing the outlet end 342. After the pressure plate assembly 40 enters the receiving space 34, it separates from the bonding drum 100 and remains within the receiving space 34 due to the rotation of the bonding drum 100 and the limitation of the outlet end 342. Through this configuration, the pressure plate assembly 40 can smoothly enter and exit the receiving space 34, effectively solving technical problems such as jamming, failure, and material detachment that occur when the pressure plate assembly 40 adheres the strip to the bonding drum 100.

[0029] like Figure 7 As shown, the limiting mechanism 37 includes a support element 371 rotatably mounted on the fixed frame 12, and a central shaft 372 rotatably mounted relative to the inlet element 36. The support element 371 has a limiting hole 3711. One end of the central shaft 372 is connected to the inlet element 36, and the other end of the central shaft 372 passes through the limiting hole 3711. It also includes an elastic element 373 sleeved on the central shaft 372. The elastic element 373 is located on the partial central shaft 372 between the inlet element 36 and the limiting hole 3711. With this configuration, when the inlet element 36 is subjected to force and rotates to open the space inlet end 341, it drives the central shaft 372 to move within the limiting hole 3711 of the support element 371, thereby shortening the length of the partial central shaft 372 between the limiting hole 3711 and the inlet element 36, and thus compressing the elastic element 373. When the inlet element 36 is no longer subjected to force, the elastic restoring force of the elastic element 373 pushes the inlet element 36 to rotate and reset, thereby closing the space inlet end 341. Furthermore, through the above-mentioned settings, during the rotation of the imported component 36, the central shaft 372 and the limiting hole 3711 of the support component are always coaxially set. During the compression process, the elastic element 373 is only compressed in its length direction and will not generate lateral eccentric force. This effectively avoids the technical problem of the elastic element 373 failing due to lateral force and ensures the reliability of the entire bonding mechanism.

[0030] Specifically, the inlet element 36 is provided with a fastener 374, and the central shaft 372 has a shaft end 3721 and a rotating end 3722 connected together. The rotating end 3722 is rotatably mounted on the fastener 374 via a bearing (not shown), and the elastic element 373 is sleeved on the shaft end 3721. This arrangement allows the central shaft 372 to rotate relative to the inlet element 36.

[0031] The inlet element 36 of this utility model includes a first inlet setting end 361, a second inlet setting end 362, and an inlet working end 363. The first inlet setting end 361 is hinged to the fixing member 31, so that the inlet element 36 can rotate relative to the fixing member 31. The second inlet setting end 362 is hinged to the limiting mechanism 37, specifically for setting the central shaft 372. The inlet working end 363 is used to open the space inlet end 341 of the accommodating space or close the space inlet end 341. The inlet working end 363 is inclined to the moving direction of the pressure plate assembly 40. When the pressure plate assembly 40 enters the accommodating space 34, it is guided by the inclined inlet working end 363.

[0032] like Figure 8 As shown, the outlet element 35 of this utility model includes a first outlet setting end 351, a second outlet setting end 352, and an outlet working end 353. The first outlet setting end 351 is hinged to the fixing member 31, so that the outlet element 35 can rotate relative to the fixing member 31. The second outlet setting end 352 is hinged to the swing mechanism 38. One end of the swing mechanism 38 is fixedly set on the fixing member 31, and the other end of the swing mechanism 38 is hinged to the second outlet setting end 352. The outlet working end 353 is used to close the space outlet end 342 of the accommodating space or open the space outlet end 342.

[0033] like Figure 3 As shown, the moving mechanism 20 of this utility model includes a rotatable swing frame 21 mounted on a support frame 11 and a swing drive source 22 mounted on a support bracket 111. The drive end of the swing drive source 22 is connected to the swing frame 21 and is used to drive the swing frame 21 to rotate, thereby causing the pressure plate assembly 40 on the bonding mechanism to move closer to the bonding drum 100 to prepare for bonding, or to move away from the bonding drum 100 to avoid other processes on the bonding drum. The fixed frame 12 is telescopically mounted on the swing frame 21. The moving mechanism 20 also includes a telescopic drive source 23 mounted on the swing frame 21. The drive end of the telescopic drive source 23 is connected to the fixed frame 12 and is used to drive the fixed frame 12 to telescopically extend and retract, thereby causing the pressure plate assembly 40 on the bonding mechanism to bond with the bonding drum and press the strip material head, or causing the pressure plate assembly 40 to separate from the bonding drum 100 to complete the bonding of the strip material.

[0034] like Figure 1 and 2As shown, the pressure plate assembly 40 of this utility model includes a pressure plate 41 and a magnetic element 42 disposed on the pressure plate 41. The magnetic element 42 is disposed near the bonding drum 100 and is used to generate magnetic attraction by bonding with a metal element (not shown) on the bonding drum, thereby fixing the pressure plate assembly 40 to the bonding drum 100. It also includes a fixing assembly 43 disposed on the pressure plate 41 and disposed away from the bonding drum 100. The fixing assembly 43 includes a support member 431 movable into the accommodating space and a connector 432 connecting the support member 431 and the pressure plate 41. In use, the support member 431 moves within the accommodating space 34, causing the pressure plate assembly 40 to enter the accommodating space 34 and then exit from the accommodating space 34. The connector 432, near the accommodating space 34, is used to limit the inlet element 36 and the outlet element 35, preventing the pressure plate assembly 40 from biasing towards either side of the two accommodating spaces 34 during movement. Preferably, the cross-section of the support member 431 is set to a circular or arc-shaped structure, so as to better realize the movement of the support member 431 within the accommodating space.

[0035] Preferably, the pressure plate component 41 includes an upper pressure plate 411 and a lower pressure plate 412, and a plurality of pressure elements 413 are disposed between the upper pressure plate 411 and the lower pressure plate 412. The pressure elements 413 protrude from the upper pressure plate 411 and the lower pressure plate 412 in the circumferential direction of the bonding drum 100, and the side of the pressure element 413 near the bonding drum 100 has an arc-shaped structure. The different pressure elements 413 have different curvatures. When producing tires of different specifications and sizes, the bonding mechanism 1 can be made more suitable for production by setting pressure elements 413 with different curvatures, thereby eliminating the need to replace the bonding mechanism and improving the applicability of the bonding mechanism.

[0036] like Figure 9 As shown, this utility model also provides a tire forming machine 1000 with a bonding mechanism. The tire forming machine has a bonding drum 100 and a bonding mechanism 1 disposed opposite to the bonding drum. The bonding mechanism is used to provide a feeding mechanism (not shown) for providing a strip material head and conveying the strip material head to the bonding drum 100. The bonding mechanism 1 is used to place a pressure plate assembly 40 on the bonding drum 100 and press the strip material head tightly onto the bonding drum 100. After the bonding drum 100 rotates one revolution, the pressure plate assembly 40 is conveyed into the bonding mechanism and received by the bonding mechanism 1, thereby enabling the production of the next tire.

[0037] The bonding mechanism 1 of this utility model mainly includes an inlet element 36 that is elastically set through a limiting mechanism 37, and an outlet element 35 that is rotatably set through a swing mechanism 38. This allows the pressure plate assembly 40 to smoothly enter the receiving space 34 and then slide out of the receiving space 34, rotating with the bonding drum 100. This effectively avoids technical problems such as jamming, failure, and material detachment of the pressure plate assembly 40 during the bonding of the strip to the bonding drum 100. The limiting mechanism 37, through a central shaft 372 that moves with the swing of the inlet element 36, ensures that the elastic element 373 set on the central shaft 372 is compressed only in the length direction of the elastic element 373 during compression, without generating lateral eccentric force, thus effectively preventing lateral force from being generated by the elastic element 373 during use. The bonding mechanism 1 of this utility model has the advantages of high reliability, simple structure, and strong applicability.

[0038] The above description is only a partial embodiment of this application, and its purpose is to illustrate the technical concept and features of this application. Any equivalent changes or alternative technical solutions that can be easily conceived by those skilled in the art under the guidance of the technical content of this application should be included within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A bonding mechanism for fixing the material head to the bonding drum, characterized in that: The device includes a support frame; support brackets symmetrically arranged at both ends of the support frame; two sets of fixed brackets movable on the support brackets via two sets of moving mechanisms; and two sets of receiving assemblies respectively arranged on the two sets of fixed brackets, wherein a pressure plate assembly is detachably arranged between the receiving assemblies; wherein each receiving assembly includes a fixing member, a first limiting member and a second limiting member arranged on the fixing member, and a receiving space having a space inlet end and a space outlet end; it also includes an outlet element arranged near the space outlet end, the outlet element being rotatably arranged via a swing mechanism; and an inlet element arranged near the space inlet end, the inlet element being elastically arranged via a limiting mechanism.

2. The bonding mechanism according to claim 1, characterized in that: The limiting mechanism includes a support element rotatably mounted on a fixed frame, a central shaft rotatably mounted relative to the inlet element, the support element having a limiting hole, one end of the central shaft being connected to the inlet element, the other end of the central shaft passing through the limiting hole, and an elastic element sleeved on the central shaft, the elastic element being mounted on a partial central shaft between the inlet element and the limiting hole.

3. The bonding mechanism according to claim 2, characterized in that: The imported component is provided with a fastener, the central shaft has a shaft end and a rotating end connected together, the rotating end is rotatably mounted on the fastener through a bearing component, and the elastic element is sleeved on the shaft end.

4. The bonding mechanism according to claim 3, characterized in that: The inlet component includes a first inlet setting end, a second inlet setting end, and an inlet working end, wherein the first inlet setting end is hinged to the fixing member, the second inlet setting end is hinged to the limiting mechanism, and the inlet working end is inclined to the moving direction of the pressure plate assembly.

5. The bonding mechanism according to any one of claims 1 to 4, characterized in that: The outlet element includes a first outlet setting end, a second outlet setting end, and an outlet working end. The first outlet setting end is hinged to a fixing member, and the second outlet setting end is hinged to a swing mechanism. One end of the swing mechanism is fixed to the fixing member, and the other end of the swing mechanism is hinged to the second outlet setting end.

6. The bonding mechanism according to any one of claims 1 to 4, characterized in that: The moving mechanism includes a rotatable swing frame mounted on a support frame, a swing drive source mounted on a support bracket, the drive end of the swing drive source being connected to the swing frame, and a telescopic drive source mounted on the swing frame, the drive end of the telescopic drive source being connected to a fixed frame.

7. The bonding mechanism according to any one of claims 1 to 4, characterized in that: The pressure plate assembly includes a pressure plate member, a magnetic element disposed on the pressure plate member, the magnetic element being disposed near the bonding drum, and a fixing component disposed on the pressure plate member, the fixing component being disposed away from the bonding drum. The fixing component includes a support member movable into the accommodating space, and a connector connecting the support member and the pressure plate member.

8. The bonding mechanism according to claim 7, characterized in that: The cross-section of the support member is set to a circular or arc-shaped structure.

9. The bonding mechanism according to claim 7, characterized in that: The pressure plate includes an upper pressure plate and a lower pressure plate. A plurality of pressure elements are arranged between the upper pressure plate and the lower pressure plate. The pressure elements protrude from the upper pressure plate and the lower pressure plate in the circumferential direction of the bonding drum. The side of the pressure element near the bonding drum has an arc-shaped structure.

10. A tire forming machine, characterized in that: It includes a bonding drum, a feeding mechanism for providing a strip, and a bonding mechanism as described in any one of claims 1 to 9, the bonding mechanism being disposed opposite to the bonding drum.

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