Scratch-proof device for the pulling ring cylinder of the molding machine

Abstract

The present invention discloses an anti-scratching device for the pull-out ring cylinder of a molding machine, which includes pull-out cylinders circumferentially and evenly arranged on the outer end face of the pull-out ring. The cylinder bodies of each pull-out cylinder are hinged on the corresponding cylinder frame plates arranged on the pull-out ring. A spherical plain bearing is installed on the cylinder rod of each pull-out cylinder, and a roller I is arranged on the outer end of the shaft of each spherical plain bearing. The roller group I formed by the circumferentially and evenly arranged rollers I is located at the proximal outer side of the cylinder group to form a support for the short hanging edge of the carcass cylinder. A roller II is installed on each cylinder body through a wheel seat, and the roller group II formed by the circumferentially and evenly arranged rollers II is located at the distal outer side of the cylinder group to form a support for the long hanging edge of the carcass cylinder. In the present invention, a group of rollers is respectively installed on each cylinder seat and each spherical plain bearing of the original pull-out cylinder group. When forming a tire embryo, the drooping rotating carcass cylinder is supported by the roller group, thereby avoiding the carcass cylinder from being scratched.

Description

Technical Field

[0001] The present invention relates to an auxiliary tool for a tire forming machine, and specifically to an anti-scratch device for a pulling ring cylinder of a forming machine. Background Art

[0002] A pulling ring is provided on the fitting drum of a traditional giant tire forming machine. When the carcass cylinder is being fitted, the pulling ring is located inside the two ends of the forming drum. Since only one drum is configured for each specification of the forming drum, when making the smallest tire on this specification of the forming drum, due to the minimum length of the forming drum, a section of the pulling ring will be exposed on the end face of the forming drum. When the carcass is being fitted, the pulling cylinder on the pulling ring will scratch the carcass cylinder, causing the carcass cylinder to delaminate. In severe cases, the cord fabric will expose the steel wire, affecting the quality of the tire embryo. Summary of the Invention

[0003] To solve the problem that the pulling cylinder scratches the carcass cylinder in the prior art, the present invention proposes an anti-scratch device for a pulling ring cylinder of a forming machine.

[0004] The anti-scratch device for a pulling ring cylinder of a forming machine that can solve the above technical problems includes pulling cylinders circumferentially and evenly distributed on the outer end face of the pulling ring. The cylinder bodies of each pulling cylinder are hinged on the corresponding cylinder frame plates provided on the pulling ring. A spherical plain bearing is installed on the piston rod of each pulling cylinder. The difference is that a roller Ⅰ is installed on the outer end of the shaft of each spherical plain bearing. The roller group Ⅰ formed by the circumferentially and evenly distributed rollers Ⅰ is located at the proximal outer side of the cylinder group (formed by each pulling cylinder) to form a support for the short drooping edge of the carcass cylinder. A roller Ⅱ is installed on each cylinder body through a wheel seat. The roller group Ⅱ formed by the circumferentially and evenly distributed rollers Ⅱ is located at the distal outer side of the cylinder group (formed by each pulling cylinder) to form a support for the long drooping edge of the carcass cylinder.

[0005] Conventionally, each roller Ⅰ is installed on the outer end of the shaft of the spherical plain bearing through a bearing Ⅰ.

[0006] Conventionally, each roller Ⅱ is installed on the wheel seat through a bearing Ⅱ.

[0007] Advantages of the Present Invention

[0008] 1. The anti-scratch device for a pulling ring cylinder of the present invention installs a group of rollers on each cylinder seat and each spherical plain bearing of the original pulling cylinder group. When forming a tire embryo, the rotating carcass cylinder that droops is supported by the roller group, thus avoiding scratching of the carcass cylinder.

[0009] 2. The structure of the present invention is simple, without the need to modify the structure of the pulling cylinder on the original pulling ring, with low cost and convenient installation and maintenance. Description of the Drawings

[0010] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0011] Figure 2 For Figure 1 Side view of the embodiment.

[0012] Drawing number identification: 1. Pull-out ring; 2. Pull-out cylinder; 3. Cylinder frame plate; 4. Spherical plain bearing; 5. Wheel seat; 6. Roller II; 7. Bearing I; 8. Bearing II; 9. Roller I. Specific embodiments

[0013] The technical solution of the present invention will be further described below in conjunction with the embodiments shown in the drawings.

[0014] The anti-scratch device for the pull-out ring cylinder of the molding machine of the present invention is applied to the bonding drum of the molding machine to protect the pull-out cylinder group, preventing the carcass cylinder on the bonding drum from being scratched by the pull-out cylinder group and affecting the quality of the tire embryo.

[0015] In the prior art, pull-out rings 1 are provided at both the left and right ends of the bonding drum. Four pull-out cylinders 2 (constituting the pull-out cylinder group) are circumferentially distributed on the outer end faces of the respective pull-out rings 1. The bottom of the cylinder body of each pull-out cylinder 2 is hinged to the corresponding cylinder frame plate 3 installed on the pull-out ring 1, and a spherical plain bearing 4 is installed on the cylinder rod of each pull-out cylinder 2.

[0016] The anti-scratch device for the pull-out ring cylinder of the molding machine of the present invention includes four rollers I 9 and four rollers II 6. The four rollers I 9 are respectively located opposite to the positions of the spherical plain bearings 4 of the respective pull-out cylinders 2, and the four rollers II 6 are respectively located opposite to the bottom of the cylinder bodies of the respective pull-out cylinders 2, as Figure 1 shown.

[0017] On the outer end of the shaft of each spherical plain bearing 4, a bearing I 7 is riveted by a pin I. Each roller I 9 is installed on the bearing I 7 of the corresponding spherical plain bearing 4. Between each roller I 9 and the corresponding bearing I 7, and between each bearing I 7 and the corresponding pin I, there is a limit structure for the inner and outer rings of the bearing (such as using a spacer sleeve and a retaining ring). The roller group I composed of the circumferentially distributed rollers I 9 is located at the outer proximal end of the pull-out cylinder group to form a support for the short hanging edge of the carcass cylinder. When the rotating carcass cylinder sags, it is supported by the roller group I, thereby preventing the carcass cylinder from being scratched by the pull-out cylinder group, as Figure 1 、 Figure 2 shown.

[0018] A wheel seat 5 is installed at the bottom of the cylinder block of each pulling cylinder 2 by bolts. A bearing II 8 is riveted to the outer end of each wheel seat 5 through a pin II. Each roller II 6 is installed on the bearing II 8 of the corresponding wheel seat 5. There are limiting structures for the inner and outer rings of the bearing between each roller II 6 and the corresponding bearing II 8, and between each bearing II 8 and the corresponding pin II (such as using a spacer sleeve and a retaining ring). The roller group II composed of circumferentially evenly distributed rollers II 6 is located at the outer distal end of the pulling cylinder group to form a support for the long flap of the carcass cylinder. When the rotating carcass cylinder sags, it is supported by the roller group II, thus preventing the carcass cylinder from being scratched by the pulling cylinder group, as Figure 1 、 Figure 2 shown.

Claims

1. Scratch-proof device for the pull-out ring cylinder of a forming machine, including pull-out cylinders (2) circumferentially and evenly arranged on the outer end face of the pull-out ring (1). The cylinder bodies of each pull-out cylinder (2) are hinged on the corresponding cylinder frame plates (3) arranged on the pull-out ring (1), and a spherical plain bearing (4) is installed on the piston rod of each pull-out cylinder (2). It is characterized in that: A roller Ⅰ (9) is arranged on the outer end of the shaft of each spherical plain bearing (4). The roller group Ⅰ composed of the circumferentially and evenly arranged rollers Ⅰ (9) is located at the outer proximal end of the cylinder group to form a support for the short hanging edge of the carcass cylinder. A roller Ⅱ (6) is installed on each cylinder body through a wheel seat (5). The roller group Ⅱ composed of the circumferentially and evenly arranged rollers Ⅱ (6) is located at the outer distal end of the cylinder group to form a support for the long hanging edge of the carcass cylinder; Each roller Ⅰ (9) is installed on the outer end of the shaft of the spherical plain bearing (4) through a bearing Ⅰ (7); Each roller Ⅱ (6) is installed on the wheel seat (5) through a bearing Ⅱ (8).

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