A method for bead loading during the tire embryo forming process

Abstract

The present invention discloses a bead loading method during the embryo forming process, which includes a bead pre-setting device and a moving frame. The bead pre-setting devices are circumferentially distributed on the moving frame. The bead pre-setting device includes a swing arm, a first spring, a support roller, a retaining roller and a second spring. The swing arm includes a connecting plate, an arm rod and a baffle. The arm rod is located at the end of the connecting plate. A coaxially arranged baffle is provided on the arm rod. The diameter of the baffle is larger than that of the arm rod. The non-arm rod end of the connecting plate is fixedly connected to the moving frame. The retaining roller is sleeved on the baffle. A first spring is provided between the inner cavity of the retaining roller and the baffle. The support roller is sleeved on the arm rod. A second spring is provided on the arm rod. One end of the second spring contacts the baffle, and the other end contacts the end face of the support roller.

Description

Technical Field

[0001] The present invention relates to a bead loading method during the embryo forming process, belonging to the technical field of semi-steel secondary forming machines. Background Art

[0002] In traditional semi-steel secondary forming machines, during the bead loading process in production, generally, workers first put them on the bead disks on the left and right reverse wrapping devices respectively. After the carcass drum is bonded with the cord fabric, the left and right reverse wrapping devices move the bead disks to the upper bead position, load the beads sleeved on the bead disks onto the carcass cord fabric, and then perform reverse wrapping to form a carcass tube. When a worker sleeves a bead onto the bead disk on the right reverse wrapping device, the worker has to hold the bead and pass it through the carcass drum to sleeve it onto the bead disk. The entire process of sleeving the bead is completely completed by manual labor, and during this process, factors such as the bead being sleeved unevenly and the position deviating may occur. Eventually, it will lead to inaccurate positions of the beads loaded onto the carcass cord fabric, affecting the quality of the final tire. At the same time, manual bead sleeving is time-consuming and laborious. If the equipment malfunctions during the manual bead sleeving process, it will also pose a danger to the human body. Summary of the Invention

[0003] To solve the deficiencies of the prior art, the purpose of the present invention is to provide a bead loading method during the embryo forming process, which solves the problems of poor product quality, long time consumption, and high risk caused by manual bead sleeving in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions:

[0005] A bead loading method during the embryo forming process includes a bead pre-setting device and a moving frame, and the bead pre-setting devices are circumferentially distributed on the moving frame;

[0006] The bead pre-setting device includes a swing arm, a first spring, a support roller, a retaining roller, and a second spring.

[0007] The swing arm includes a connecting plate, an arm rod, and a baffle. The arm rod is located at the end of the connecting plate. A coaxially arranged baffle is provided on the arm rod. The diameter of the baffle is larger than that of the arm rod. The non-arm rod end of the connecting plate is fixedly connected to the moving frame. The retaining roller is sleeved on the baffle. A first spring is provided between the inner cavity of the retaining roller and the baffle. The support roller is sleeved on the arm rod. A second spring is provided on the arm rod. One end of the second spring contacts the baffle, and the other end contacts the end face of the support roller.

[0008] The aforementioned retaining roller is hollow, with a front chamber and a rear chamber connected in sequence. The diameter of the rear chamber is larger than that of the front chamber;

[0009] The rear chamber of the retaining roller is sleeved on the baffle. A fixing plate is connected to the outside of the baffle. The fixing plate is connected to the end of the retaining roller by bolts. A second spring is provided in the rear chamber. One end of the second spring contacts the inner side of the baffle, and the other end contacts the step surface of the front chamber.

[0010] The aforementioned supporting roller is hollow, with a first chamber and a second chamber connected in sequence inside. The diameter of the first chamber is larger than that of the second chamber.

[0011] The second chamber is sleeved on the arm rod, and the supporting roller is located inside the front chamber. There is a screw in the first chamber, and the screw is fixedly connected to the end of the arm rod. The diameter of the nut end of the screw is larger than the diameter of the second chamber. A first spring is coaxially arranged on the arm rod. One end of the first spring contacts the inner side of the baffle, and the other end contacts the end of the supporting roller.

[0012] A bead is hung on the supporting roller of the bead presetting device, and the bead also leans against the retaining roller on the supporting roller; the bead presetting device rotates the supporting roller through a swing arm to make the bead in a tensioned state on the supporting roller.

[0013] Further, the number of the aforementioned bead presetting devices is at least 6.

[0014] Further, the foregoing also includes a guide rail, a slider, and a cross beam.

[0015] A slider is fixed to the top end of the moving frame, and a guide rail is connected to the bottom end of the cross beam. The slider is slidably connected to the guide rail.

[0016] Further, bead presetting devices are arranged on both sides of the foregoing moving frame.

[0017] The beneficial effects achieved by the present invention:

[0018] The number of bead presetting devices is increased. The bead presetting devices automatically move to the central position of the main shaft of the carcass drum. When the left and right bead wrapping devices move the bead retaining disc to the bead presetting position, the bead on the bead presetting device is loaded onto the bead retaining disc. The left and right bead wrapping devices respectively move to the left and right sides of the carcass drum. After the carcass drum completes the lamination of the inner liner and the cord fabric, the left and right bead wrapping devices move to the upper bead position to put the steel ring on the carcass, and then perform bead wrapping. After the bead wrapping is completed, a carcass cylinder is formed. In this process, while reducing the risk coefficient of equipment to personal safety, the labor intensity of the operator is also reduced, the participation of personnel is reduced, and the unstable factors caused by human factors to the tire quality are reduced. Description of the Drawings

[0019] Figure 1 is the overall front view of the present invention;

[0020] Figure 2 is the overall side view of the present invention (the supporting roller is in a contracted state);

[0021] Figure 3 is the present invention Figure 1 the enlarged view at A in;

[0022] Figure 4 is the schematic diagram of the swing arm structure of the present invention;

[0023] Figure 5 It is a schematic structural diagram of the supporting roller of the present invention;

[0024] Figure 6 It is a schematic structural diagram of the retaining roller of the present invention;

[0025] Figure 7 It is a side view of the whole of the present invention (the supporting roller is in a tensioned state);

[0026] Figure 8 It is a schematic diagram of the process of the bead locking plate sleeving the bead of the present invention.

[0027] The meanings of the reference numerals in the figure: 01 - bead; 02 - bead locking plate; 1 - swing arm; 2 - first spring; 3 - supporting roller; 4 - retaining roller; 5 - second spring; 6 - guide rail; 7 - slider; 8 - moving frame; 9 - cross beam; 10 - fixing plate; 11 - connecting plate; 12 - arm rod; 13 - baffle; 31 - first chamber; 32 - second chamber; 41 - front chamber; 42 - rear chamber. Detailed implementation manners

[0028] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations on the technical solution of the present application. Without conflict, the technical features in the embodiments of the present application and the embodiments can be combined with each other.

[0029] This embodiment discloses a method for loading a bead during the forming process of a tire embryo, including a bead pre-setting device, a guide rail 6, a slider 7, a moving frame 8, and a cross beam 9.

[0030] As Figure 1 、 Figure 2 shown, the bead pre-setting devices are circumferentially distributed on the moving frame 8. A slider 7 is fixed at the top of the moving frame 8, and a guide rail 6 is connected to the bottom end of the cross beam 9. The slider 7 is slidably connected to the guide rail 6.

[0031] As Figure 3 shown, the bead pre-setting device includes a swing arm 1, a first spring 2, a supporting roller 3, a retaining roller 4, a second spring 5, and a fixing plate 10. The retaining roller 4 is fixedly connected to the swing arm 1. A second spring 5 is provided between the inner cavity of the retaining roller 4 and the swing arm 1. The supporting roller 3 is inserted into the inner cavity of the retaining roller 4 and is connected to the arm rod of the swing arm 1 by bolts. A first spring 2 is provided between the supporting roller 3 and the swing arm 1.

[0032] Specifically, as Figure 4 shown, the swing arm 1 includes a connecting plate 11, an arm rod 12, and a baffle 13. The arm rod 12 is located at the end of the connecting plate 11. A coaxially arranged baffle 13 is provided on the arm rod 12. The diameter of the baffle 13 is larger than the diameter of the arm rod 12; asFigure 5 As shown, the supporting roller 3 is hollow, with a first chamber 31 and a second chamber 32 connected in sequence inside. The diameter of the first chamber 31 is larger than that of the second chamber 32; as Figure 6 shown, the retaining roller 4 is also hollow, with a front chamber 41 and a rear chamber 42 connected in sequence inside. The diameter of the rear chamber 42 is larger than that of the front chamber 41.

[0033] One end of the connecting plate 11 is fixedly connected to the moving frame 8, and the other end is used to install the supporting roller 3 and the retaining roller 4. The rear chamber 42 of the retaining roller 4 is sleeved on the baffle 13. An fixing plate 10 is connected to the outside of the baffle 13. The fixing plate 10 is connected to the end of the retaining roller 4 by bolts. A second spring 5 is arranged in the rear chamber 42. One end of the second spring 5 contacts the inner side of the baffle 13, and the other end contacts the step surface of the front chamber 41. The second chamber 32 of the supporting roller 3 is sleeved on the arm rod 12, and the supporting roller 3 is located in the front chamber 41 of the retaining roller 4. A screw is also arranged in the first chamber 31 of the supporting roller 3. The screw is fixedly connected to the end of the arm rod 12. A first spring 2 is arranged on the arm rod 12. One end of the first spring 2 contacts the inner side of the baffle 13, and the other end contacts the end of the supporting roller 3.

[0034] The specific use steps of this embodiment are as follows:

[0035] 1. As Figure 1 shown, the bead 01 is hung on the supporting roller 3 of the bead pre-setting device, and at the same time, it leans against the retaining roller 4 on the supporting roller 3. As Figure 7 shown, the supporting roller 3 is rotated by the swing arm 1 to make the bead in a tensioned state on the supporting roller 3. In order to prevent the bead 01 from deforming during the tensioning process, the number of supporting rollers is at least 6 or more.

[0036] 2. The bead pre-setting device with the bead 01 hung on it is moved along the guide rail 6 to the center position of the carcass drum spindle.

[0037] 3. Figure 8 shown, the left and right bead wrapping devices move the bead locking plate 02 to the bead pre-setting position to pick up the bead 01. The bead locking plate 02 first touches the supporting roller 3. The bead locking plate 02 continues to move, and the supporting roller 3 moves together with the bead locking plate 02, while compressing the first spring 2. When the bead locking plate 02 touches the bead 01 and then continues to move, the spring force acting on the retaining roller 4 will hold the bead 01 until the bead 01 is on the bead locking plate 02. The supporting roller 3 contracts radially, and the bead wrapping device moves backward. The bead 01 pre-setting moves out of the center position of the carcass drum spindle. The bead wrapping device moves to the waiting position. After the carcass drum completes the lamination of the inner liner and the cord fabric, it then moves to the carcass ring setting position for ring setting and bead wrapping forming. The carcass cylinder is completed. The carcass cylinder is taken out and enters the next cycle.

[0038] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A method for loading beads during the process of forming a tire embryo, characterized in that, It includes a bead presetting device and a moving frame (8), and the bead presetting devices are circumferentially distributed on the moving frame (8); The bead presetting device includes a swing arm (1), a first spring (2), a support roller (3), a stop roller (4) and a second spring (5), The swing arm (1) includes a connecting plate (11), an arm rod (12) and a baffle (13). The arm rod (12) is located at the end of the connecting plate (11). A coaxially arranged baffle (13) is provided on the arm rod (12). The diameter of the baffle (13) is larger than that of the arm rod (12). The non-arm-rod end of the connecting plate (11) is fixedly connected to the moving frame (8). The stop roller (4) is sleeved on the baffle (13). A first spring (2) is provided between the inner cavity of the stop roller (4) and the baffle (13). The support roller (3) is sleeved on the arm rod (12). A second spring (5) is provided on the arm rod (12). One end of the second spring (5) contacts the baffle (13), and the other end contacts the end face of the support roller (3); The stop roller (4) is hollow, with a front chamber (41) and a rear chamber (42) connected in sequence inside. The diameter of the rear chamber (42) is larger than that of the front chamber (41); The rear chamber (42) of the stop roller (4) is sleeved on the baffle (13). A fixing plate (10) is connected to the outside of the baffle (13). The fixing plate (10) is connected to the end of the stop roller (4) by bolts. A second spring (5) is provided in the rear chamber (42). One end of the second spring (5) contacts the inner side of the baffle (13), and the other end contacts the step surface of the front chamber (41); The support roller (3) is hollow, with a first chamber (31) and a second chamber (32) connected in sequence inside. The diameter of the first chamber (31) is larger than that of the second chamber (32); The second chamber (32) is sleeved on the arm rod (12), and the support roller (3) is located in the front chamber (41). A screw is provided in the first chamber (31). The screw is fixedly connected to the end of the arm rod (12). The diameter of the nut end of the screw is larger than that of the second chamber (32). A first spring (2) is coaxially provided on the arm rod (12). One end of the first spring (2) contacts the inner side of the baffle (13), and the other end contacts the end of the support roller (3); A bead (01) is hung on the support roller (3) of the bead presetting device, and the bead (01) also leans against the stop roller (4) on the support roller (3); The bead presetting device rotates the support roller (3) through the swing arm (1) to make the bead in a tensioned state on the support roller (3).

2. The bead loading method during the embryo forming process according to claim 1, characterized in that, The number of the bead presetting devices is at least 6.

3. The bead loading method during the embryo forming process according to claim 1, wherein, It further includes a guide rail (6), a slider (7) and a cross beam (9), A slider (7) is fixed at the top of the moving frame (8). A guide rail (6) is connected to the bottom of the cross beam (9). The slider (7) is slidably connected to the guide rail (6).

4. The method for loading a bead during the green tire forming process according to claim 1, wherein, Bead presetting devices are arranged on both sides of the moving frame (8).

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