A molding machine molding drum locking block belt mounting apparatus

Abstract

The utility model discloses a molding machine molding drum lock block belt mounting equipment relates to molding machine molding drum maintenance technical field, including annular base and support, and the support is fixed on annular base, and its top is equipped with mounting panel, still include elevating seat, and elevating seat is cylindrical, and it is located the right top of annular base, and its top is linked with mounting panel through elevating mechanism, the annular base is opened with several radial direction guide hole corresponding with lock block gap in the circumferential array, and the guide hole all slidingly inserts and installs expansion arm, and the inner end of expansion arm is linked with elevating seat lateral wall through the support rod, and the outer end is equipped with the recessed mounting claw of inside, the bottom of annular base is fixed with bottom plate, and the bottom plate bottom is installed with the centring assembly of setting with elevating seat and annular base coaxial, and this device can realize centring fast through the cooperation of centring assembly and molding drum main shaft hole to can guarantee the uniformity of belt installation.

Description

Technical Field

[0001] This utility model relates to the field of molding machine drum maintenance technology, specifically to a molding machine drum locking block belt installation device. Background Technology

[0002] The locking belt of the forming drum in the forming machine is a crucial component for bead locking, and its installation uniformity directly affects the uniformity of bead locking. Because the locking belt also provides restoring force to the locking blocks during drum operation, it requires both a belt diameter much smaller than the locking block diameter and high resilience. Therefore, the expansion force required for installing the locking belt is substantial. Currently, the locking belt is installed manually with localized stretching, which is difficult and easily leads to uneven circumferential installation, affecting bead locking accuracy.

[0003] Chinese patent CN223251540U discloses a tire forming drum locking block belt installation fixture, including an annular base, a bracket, an inverted cone, a screw, and an expansion arm. The bracket is fixed on the annular base, and its top is provided with a horizontal mounting plate. The screw vertically penetrates the mounting plate and is threadedly connected to the mounting plate, and its upper end is provided with a handle. 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. Several guide grooves corresponding to the locking block gaps are formed in a circular array on the outer wall of the inverted cone. Several horizontal guide holes corresponding to the guide grooves are formed on the annular base. The expansion arm is slidably inserted into the guide holes, with its inner end slidably connected to the guide groove and its outer end provided with a concave mounting claw. Although this fixture can evenly expand the belt, it cannot be aligned with the forming drum, so it is still difficult to ensure the uniformity of belt installation. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a belt installation device for the forming drum locking block of a forming machine.

[0005] The technical solution of this utility model is: a belt mounting device for the locking block of a molding machine forming drum, comprising an annular base and a bracket, the bracket being fixed on the annular base and having a mounting plate on its top; it also includes a lifting seat, the lifting seat being a cylinder located directly above the annular base, its top being connected to the mounting plate via a lifting mechanism; the annular base has a plurality of radial guide holes in a circumferential array corresponding to the gaps between the locking blocks, each guide hole having an expansion arm slidably inserted therein, the inner end of the expansion arm being connected to the side wall of the lifting seat via a support rod, and the outer end having a concave mounting claw; the two ends of the support rod are respectively hinged to the expansion arm and the side wall of the lifting seat; The bottom of the annular base is fixed with a base plate, and a centering component coaxially arranged with the lifting seat and the annular base is installed on the bottom of the base plate.

[0006] Preferably, the lifting mechanism includes a support plate, a screw, and a guide rod. The support plate is fixed to the top of the lifting seat, the screw extends vertically through the mounting plate, and its lower end is fixed to the support plate. The mounting plate is provided with a drive mechanism that can drive the screw to lift and lower, and at least one guide rod slides vertically through the mounting plate, with its lower end fixed to the support plate.

[0007] Preferably, the drive mechanism includes a worm gear mechanism and a mounting bracket. The worm gear mechanism is mounted on a mounting plate via the mounting bracket. Its worm wheel is fitted onto the screw and threadedly connected to the screw. A handwheel is mounted on the outer end of its worm.

[0008] Preferably, the centering component includes a turntable, and the base plate has multiple radial grooves arranged in a circumferential array, with a circular groove at the center; the turntable is rotatably mounted in the circular groove and connected to a fastening mechanism; sliders are slidably mounted in each groove, and the inner bottom end of each slider is connected to the turntable via a connecting rod, and a vertical free roller is mounted on the outer bottom end of each slider; multiple connecting rods are arranged in a circumferential array, with one end of the connecting rod hinged to the slider and the other end hinged to the edge of the bottom of the turntable.

[0009] Preferably, the outer wall of the free roller is covered with a rubber layer.

[0010] Preferably, the fastening mechanism includes a stud fixed vertically at the center of the circular groove, the stud penetrating the turntable, and a fastening nut for pressing the turntable is threaded onto the stud.

[0011] Preferably, the guide hole is a square hole, and correspondingly, the expansion arm is a square rod.

[0012] Compared with the prior art, this utility model has the following advantages: This device uses a lifting mechanism to move the lifting seat up and down, which in turn moves several mounting claws synchronously, thus ensuring uniform belt expansion. The device can quickly achieve centering by cooperating with the centering component and the main shaft hole of the forming drum, thereby ensuring the uniformity of belt installation. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the bottom of this utility model.

[0014] In the diagram: 1. Annular base, 2. Bracket, 3. Mounting plate, 4. Lifting seat, 5. Support rod, 6. Expansion arm, 7. Mounting claw, 8. Support plate, 9. Guide rod, 10. Screw, 11. Worm gear mechanism, 12. Handwheel, 13. Base plate, 1301. Slide groove, 14. Turntable, 15. Slider, 16. Connecting rod, 17. Free roller, 18. Stud, 19. Fastening nut. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1

[0016] Reference Figure 1-2 As shown, a belt mounting device for a forming drum locking block of a forming machine includes an annular base 1 and a bracket 2. The bracket 2 is fixed on the annular base 1, and its top is provided with a mounting plate 3. It also includes a lifting seat 4, which is cylindrical and located directly above the annular base 1. Its top is connected to the mounting plate 3 via a lifting mechanism. The annular base 1 has several radial guide holes arranged in a circumferential array, corresponding to the gaps between the locking blocks. An expansion arm 6 is slidably inserted into each guide hole. The inner end of the expansion arm 6 is connected to the side wall of the lifting seat 4 via a support rod 5, and the outer end is provided with a concave mounting claw 7. The two ends of the support rod 5 are hinged to the expansion arm 6 and the side wall of the lifting seat 4, respectively. More specifically, the guide holes are square holes, and correspondingly, the expansion arm 6 is a square rod.

[0017] A base plate 13 is fixed to the bottom of the annular base 1, and a centering component is installed on the bottom of the base plate 13, which is coaxially arranged with the lifting seat 4 and the annular base 1.

[0018] The centering component includes a turntable 14. Three radial grooves 1301 are arranged in a circumferential array on the base plate 13, with a circular groove at the center. The turntable 14 is rotatably mounted in the circular groove and is connected to a fastening mechanism. Slider 15 is slidably mounted in each groove 1301. The inner bottom end of the slider 15 is connected to the turntable 14 through a connecting rod 16, and a vertical free roller 17 is installed on the outer bottom end of each slider 15. The three connecting rods 16 are arranged in a circumferential array. One end of the connecting rod 16 is hinged to the slider 15, and the other end is hinged to the edge of the bottom of the turntable 14.

[0019] To reduce the friction between the free roller 17 and the main shaft hole of the forming drum, the outer wall of the free roller 17 is covered with a rubber layer.

[0020] In addition, to facilitate the positioning of the free roller 17, the bottom of the base plate 13 is provided with scale lines corresponding to the main shaft hole diameter of different forming drums.

[0021] In use, first adjust the position of the three free rollers 17 according to the diameter of the main shaft hole of the forming drum to be installed, so that the outer diameter of the circle formed by the three free rollers 17 is slightly smaller than the diameter of the main shaft hole of the forming drum. Move one free roller 17 to the designated scale line. When it is in place, the other two free rollers 17 will also be in place simultaneously. After adjustment, lock the turntable 14 through the fastening mechanism to lock the position of the three free rollers 17. Then, drive the lifting seat 4 to descend through the lifting mechanism, so that the belt mounting claws 7 expand to be slightly smaller than the inner diameter of the belt. Put the belt onto the mounting claws 7. Continue to drive the lifting seat 4 to descend through the lifting mechanism, so that the belt is expanded by several mounting claws 7 so that its diameter is larger than the outer diameter of the locking block. Then, insert the three free rollers 17 into the main shaft hole of the forming drum for centering, and align each mounting claw 7 with the gap of the forming drum locking block. Then drive the lifting seat 4 to rise through the lifting mechanism, so that the belt diameter shrinks until the belt contacts the locking block. Finally, remove the equipment, and the installation is complete. Example 2

[0022] As a preferred embodiment of this utility model, this embodiment designs the lifting mechanism based on Embodiment 1, specifically as follows: The lifting mechanism includes a support plate 8, a screw 10, and guide rods 9. The support plate 8 is fixed to the top of the lifting seat 4. The screw 10 passes vertically through the mounting plate 3, and its lower end is fixed to the support plate 8. The mounting plate 3 is equipped with a drive mechanism that can drive the screw 10 to lift. Two guide rods 9 slide vertically through the mounting plate 3, and their lower ends are fixed to the support plate 8.

[0023] The drive mechanism includes a worm gear mechanism 11 and a mounting bracket. The worm gear mechanism 11 is mounted on the mounting plate 3 via the mounting bracket. Its worm wheel is fitted onto the screw 10 and threadedly connected to the screw 10. A handwheel 12 is installed on the outer end of its worm.

[0024] In use, turn the handwheel 12, which drives the screw 10 to move up and down through the worm gear transmission, thereby driving the lifting seat 4 to move up and down. Example 3

[0025] As a preferred embodiment of this utility model, this embodiment designs the fastening mechanism based on Embodiment 1, specifically as follows: The fastening mechanism includes a stud 18 vertically fixed at the center of the circular groove, the stud 18 passing through the turntable 14, and a fastening nut 19 for pressing the turntable 14 is threaded onto the stud 18.

[0026] Once the three free rollers 17 are adjusted to their positions, the turntable 14 is pressed down by the fastening nut 19, thereby locking the position of the three free rollers 17.

[0027] In summary, this device uses a lifting mechanism to move the lifting seat 4 up and down, which in turn moves several mounting claws 7 synchronously, thus enabling the belt to expand evenly. This device can quickly achieve centering by cooperating with the centering component and the main shaft hole of the forming drum, thereby ensuring the uniformity of belt installation.

[0028] This utility model is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model, and the changed content still falls within the protection scope of this utility model.

Claims

1. A belt mounting device for a forming drum locking block of a forming machine, comprising an annular base and a bracket, the bracket being fixed on the annular base, and having a mounting plate on its top; characterized in that: It also includes a lifting seat, which is a cylinder located directly above the annular base. Its top is connected to the mounting plate via a lifting mechanism. The annular base has several radial guide holes arranged in a circular array, corresponding to the gaps between the locking blocks. An expansion arm is slidably inserted into each of the guide holes. The inner end of the expansion arm is connected to the side wall of the lifting seat via a support rod, and the outer end is provided with a concave mounting claw. The two ends of the support rod are respectively hinged to the expansion arm and the side wall of the lifting seat. The bottom of the annular base is fixed with a base plate, and a centering component coaxially arranged with the lifting seat and the annular base is installed on the bottom of the base plate.

2. The molding drum locking block belt installation device for a molding machine according to claim 1, characterized in that: The lifting mechanism includes a support plate, a screw, and a guide rod. The support plate is fixed to the top of the lifting seat. The screw runs vertically through the mounting plate, and its lower end is fixed to the support plate. The mounting plate is provided with a drive mechanism that can drive the screw to lift. At least one of the guide rods slides vertically through the mounting plate, and its lower end is fixed to the support plate.

3. The molding drum locking block belt installation device for a molding machine according to claim 2, characterized in that: The drive mechanism includes a worm gear mechanism and a mounting bracket. The worm gear mechanism is mounted on a mounting plate via the mounting bracket. The worm gear is fitted onto the screw and threadedly connected to the screw. A handwheel is mounted on the outer end of the worm.

4. The molding drum locking block belt installation device for a molding machine according to claim 1, characterized in that: The centering assembly includes a turntable. The base plate has multiple radial grooves arranged in a circumferential array, with a circular groove at its center. The turntable is rotatably mounted in the circular groove and is connected to a fastening mechanism. A slider is slidably mounted in each groove. The inner bottom end of the slider is connected to the turntable via a connecting rod, and a vertical free roller is mounted on the outer bottom end of each slider. Multiple connecting rods are arranged in a circumferential array, with one end of the connecting rod hinged to the slider and the other end hinged to the edge of the bottom of the turntable.

5. The molding drum locking block belt installation device for a molding machine according to claim 4, characterized in that: The outer wall of the free roller is covered with a rubber layer.

6. The molding drum locking block belt installation device for a molding machine according to claim 4, characterized in that: The fastening mechanism includes a stud fixed vertically at the center of the circular groove, the stud penetrating the turntable, and a fastening nut for pressing the turntable is threaded onto the stud.

7. The molding drum locking block belt installation device for a molding machine according to claim 1, characterized in that: The guide hole is a square hole, and correspondingly, the expansion arm is a square rod.

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