Lock block belt mounting tool for tire building drum

Abstract

The utility model discloses a tire building drum lock block belt installation tool, and relates to the technical field of tire building drum maintenance, the tire building drum lock block belt installation tool comprises an annular base, a support, an inverted cone, a screw rod and an expansion arm, the support is fixed on the annular base, and the top of the support is provided with a horizontal installation plate; the screw vertically penetrates through the mounting plate and is in threaded connection with the mounting plate, and a handle is arranged at the upper end of the screw; the inverted cone is located under the screw rod, can move up and down along with the screw rod, and is coaxially arranged with the annular base; a plurality of guide grooves corresponding to gaps of the locking blocks are formed in the outer side wall of the inverted cone in a circumferential array mode, a plurality of horizontal guide holes corresponding to the guide grooves in a one-to-one mode are formed in the annular base, the expansion arms are slidably inserted into the guide holes, the inner ends of the expansion arms are slidably connected with the guide grooves, and inwards-concave installation claws are arranged at the outer ends of the expansion arms. According to the tool, the inverted cone is driven to descend through the screw rod, the belt is expanded through cooperation of the inverted cone and the expansion arm, the belt is uniformly expanded mechanically, the manual installation strength is reduced, and the installation uniformity is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of tire building drum maintenance, in particular to a tire building drum locking block belt installation tool. Background Art

[0002] The tire building drum's locking belt is a crucial element for locking the tire bead, and its installation uniformity directly impacts bead locking. Because the belt also provides a reset force for the locking blocks during tire building drum operation, this requires the belt's diameter to be significantly smaller than the block diameter and possesses significant resilience. Therefore, the expansion force required for belt installation is substantial. Currently, manual partial stretching is used for installation, making it difficult and prone to circumferential unevenness, impacting bead locking accuracy. Therefore, a dedicated tooling for installing the belt is essential to reduce labor intensity and improve installation uniformity. Utility Model Content

[0003] The purpose of the utility model is to provide a tire building drum locking block belt installation tool to address the defects of the prior art.

[0004] The technical solution of the utility model is: a tire building drum locking block belt installation tool, comprising an annular base, a bracket, an inverted cone, a screw and an expansion arm, the bracket being fixed on the annular base, and a horizontal mounting plate being provided on the top thereof; the screw vertically passes through the center of the mounting plate and is threadedly connected to the mounting plate, and a handle is provided at the upper end thereof; the inverted cone is located directly below the screw, can move up and down with the screw, and is coaxially arranged with the annular base; a plurality of guide grooves corresponding to the locking block gaps are provided in a circumferential array on the outer side wall of the inverted cone, a plurality of horizontal guide holes corresponding to the guide grooves are provided on the annular base, the expansion arm is slidably inserted in the guide hole, the inner end is slidably connected to the guide groove, and the outer end is provided with a concave mounting claw.

[0005] Preferably, it also includes a reset spring, and a plurality of vertical guide rods are provided at the top of the inverted cone. The guide rods slide through the mounting plate, and a limit plate is provided at the upper end; the reset spring is sleeved on the guide rod, and the two ends of the upper end are respectively supported on the limit plate and the mounting plate.

[0006] Preferably, two guide rods are provided, and the two guide rods are symmetrically arranged with the screw rod as the center.

[0007] Compared with the prior art, the utility model has the following advantages:

[0008] This tooling has a simple structure and strong practicality. The screw drives the inverted cone to descend, and then the inverted cone and the expansion arm cooperate to expand the belt. The belt is expanded evenly by machinery, which reduces the intensity of manual installation and ensures installation uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural diagram of the utility model;

[0010] Figure 2 This is a schematic diagram of the use state of the utility model.

[0011] In the figure: 1. annular base, 101. guide hole, 2. bracket, 3. mounting plate, 4. screw, 5. handle, 6. inverted cone, 601. guide groove, 7. expansion arm, 8. mounting claw, 9. guide rod, 10. return spring, 11. limit plate, 12. belt, 13. locking block. DETAILED DESCRIPTION

[0012] The present invention is further described below with reference to the accompanying drawings and embodiments. Example 1

[0013] Reference Figure 1-2 As shown, a tire forming drum locking block 13 belt 12 installation tool includes an annular base 1, a bracket 2, an inverted cone 6, a screw 4 and an expansion arm 7. The bracket 2 is fixed on the annular base 1, and a horizontal mounting plate 3 is provided on the top thereof; the screw 4 vertically passes through the center of the mounting plate 3 and is threadedly connected to the mounting plate 3, and a handle 5 is provided on the upper end thereof; the inverted cone 6 is located directly below the screw 4, can move up and down with the screw 4, and is coaxially arranged with the annular base 1; a plurality of guide grooves 601 corresponding to the gaps between the locking blocks 13 are provided in a circumferential array on the outer wall of the inverted cone 6, and a plurality of horizontal guide holes 101 corresponding to the guide grooves 601 are provided on the annular base 1, and the expansion arm 7 is slidably inserted into the guide hole 101, the inner end is slidably connected to the guide groove 601, and the outer end is provided with a concave mounting claw 8.

[0014] During installation, the screw rod 4 is rotated by the handle 5 to drive the inverted cone 6 to move downward, so that the belt 12 mounting claws 8 are expanded to be slightly smaller than the inner diameter of the belt 12, and then the belt 12 is put on the mounting claws 8, and the screw rod 4 is continued to be rotated to push the inverted cone 6 down, and the diameter of the expanded belt 12 is larger than the expanded outer diameter of the locking block 13; then the mounting claws 8 of the installation tool are aligned with the gap of the locking block 13 of the forming drum, and the screw 4 is slowly rotated upward to shrink the diameter of the belt 12 until the belt 12 contacts the locking block 13; finally, the locking block 13 is retracted, and the installation tool is removed to complete the installation.

[0015] This tooling has a simple structure and strong practicality. The screw 4 drives the inverted cone 6 to descend, and then the belt 12 is expanded through the cooperation of the inverted cone 6 and the expansion arm 7. The belt 12 is expanded uniformly by machinery, which reduces the intensity of manual installation and ensures installation uniformity. Example 2

[0016] As a preferred embodiment of the present invention, this embodiment is additionally provided with a guide rod 9 and a return spring 10 on the basis of the first embodiment, specifically:

[0017] This embodiment also includes a return spring 10. Two vertical guide rods 9 are provided on the top of the inverted cone 6. The guide rods 9 slide through the mounting plate 3 and have a limit plate 11 at their upper ends. The return spring 10 is sleeved on the guide rods 9, and its upper ends are respectively supported on the limit plate 11 and the mounting plate 3.

[0018] In more detail, the two guide rods 9 are symmetrically arranged with the screw rod 4 as the center.

[0019] When expanding the belt 12, the screw 4 is rotated to push the inverted cone 6 downward. At this time, the limit plate 11 compresses the return spring 10; when contracting the belt 12, the screw 4 is rotated upward. At this time, the return spring 10 drives the inverted cone 6 to move upward through the limit plate 11 and the guide rod 9 and always maintains contact with the lower end of the screw 4.

[0020] The present invention is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present invention. The changed contents still fall within the scope of protection of the present invention.

Claims

1. A tire building drum locking block belt installation tool, characterized by: It includes an annular base, a bracket, an inverted cone, a screw and an expansion arm. The bracket is fixed on the annular base, and a horizontal mounting plate is provided on the top of the bracket. The screw vertically passes through the center of the mounting plate and is threadedly connected to the mounting plate, and a handle is provided on the upper end. The inverted cone is located directly below the screw and can move up and down with the screw, and is coaxially arranged with the annular base. A plurality of guide grooves corresponding to the gaps between the locking blocks are provided in a circumferential array on the outer side wall of the inverted cone, and a plurality of horizontal guide holes corresponding to the guide grooves are provided on the annular base. The expansion arm is slidably inserted into the guide hole, the inner end is slidably connected to the guide groove, and the outer end is provided with a concave mounting claw.

2. The tire building drum locking block belt installation tool according to claim 1, characterized in that: It also includes a reset spring. A plurality of vertical guide rods are provided at the top of the inverted cone. The guide rods slide through the mounting plate, and a limit plate is provided at the upper end. The reset spring is sleeved on the guide rod, and the two ends of the upper end are respectively supported on the limit plate and the mounting plate.

3. The tire building drum locking block belt installation tool according to claim 2, characterized in that: There are two guide rods, and the two guide rods are symmetrically arranged with the screw rod as the center.

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