A rotational mould positioning mechanism

Abstract

The utility model relates to rotomolding processing technical field, concretely is a kind of rotomolding mould positioning mechanism, including positioning plate and rotomolding box, the positioning plate is set to the high plate and low plate of different height of integration, the connecting place of high plate and low plate upper surface is equipped with underframe, rotomolding box is set to two, two rotomolding box end joint into whole, two rotomolding box another end respectively coaxially fixed mounting has rotating shaft, the end of rotomolding box still welds several inserting rods.This kind of rotomolding mould positioning mechanism, rotomolding box is connected with carousel by the insertion of inserting rod and through-hole, carousel is set in the outside of rotating shaft, and rotomolding process is provided with the support and stability for rotating shaft, carousel absorbs part of tremor, avoid the damage of connecting end caused by the shaking of rotating shaft in rotomolding high-speed rotation process, and the position of one of support can be adjusted by rotating threaded rod, not only can adjust the clamping action of support to rotomolding box, also facilitate rotomolding box disassembly, accelerate demoulding process.

Description

Technical Field

[0001] This utility model relates to the field of rotational molding technology, specifically a rotational molding mold positioning mechanism. Background Technology

[0002] Chinese utility model patent CN202421509950.2 discloses an adjustable rotational molding die closing and positioning structure, including a base plate, a left side plate installed on one side of the top of the base plate, a die body installed on the inner side of the left side plate, a die cover installed on the inner side of the movable plate, a fixing pin installed at one end of the die cover, and an adjustment mechanism provided on the outer side of the right side plate. By providing an adjustment mechanism on the outer side of the right side plate, and utilizing the mutual cooperation between the mounting cavity of the adjustment mechanism, the first servo motor, the threaded rod, the threaded sleeve, the movable cavity, the limiting groove, and the limiting block, the die cover can be automatically moved and its position adjusted, thereby automatically closing and opening the die body and the die cover. This makes the rotational molding die more convenient and efficient to use, reduces the labor intensity of workers, and greatly improves the practicality of the die.

[0003] While this positioning structure improves mold closing accuracy, it lacks limiting structures at both ends. During rotational molding, high-speed rotation can easily cause vibration at both ends of the rotational molding box, which can lead to wear on the connecting shafts at both ends and affect the overall service life of the structure.

[0004] To address the aforementioned issues, we propose an improvement: a rotational molding die positioning mechanism. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model provides a rotational molding mold positioning mechanism, including a positioning plate and a rotational molding box. The positioning plate is configured as an integrated high plate and a low plate with different heights. A base frame is installed on the upper surface of the connection between the high plate and the low plate.

[0007] The rotomolding box is configured as two, and the ends of the two rotomolding boxes are joined together as a whole. The other ends of the two rotomolding boxes are respectively coaxially fixed with rotating shafts, and several insert rods are welded to the ends of the rotomolding boxes.

[0008] A support ring is installed on the top of the base frame, and the support ring is fitted at the joint of the two rotomolded boxes;

[0009] Both the high plate and the low plate are provided with supports on their upper parts. Two connecting frames are installed on the upper surface of the low plate, and the supports on the low plate are slidably connected to the connecting frames.

[0010] A retaining ring is installed at the top of the bracket, and a turntable is rotatably connected inside the retaining ring. The insertion rod is inserted into the turntable.

[0011] As a preferred embodiment of this utility model, a limiting structure is provided between the inner surfaces of the turntable and the retaining ring, a lubricant is provided between the turntable and the retaining ring, and a number of through holes are provided on the surface of the turntable.

[0012] As a preferred embodiment of this utility model, the positions of the through holes correspond one-to-one with the insertion rods, and the insertion rods are inserted into the through holes. The rotating shaft passes through the turntable, and the rotating shaft is rotatably connected to the turntable. Reinforcing ribs are installed on both sides of the bracket.

[0013] As a preferred technical solution of this utility model, the outer surface of the docking end of the rotomolding box is equipped with several evenly distributed teeth, and two gears are rotatably installed inside the base frame. The two ends of the inner surface of the base frame are respectively provided with docking cavities, and the bottom of the docking cavity is provided with a reserved groove. The gears pass through the reserved grooves upward and mesh with the teeth.

[0014] As a preferred technical solution of this utility model, a servo motor is installed on the outer surface of the base frame. The output shaft of the servo motor is coaxially and fixedly connected to two gears. The two rotomolded boxes are respectively provided with insertion holes and plugs at their mating ends. The two rotomolded boxes are coaxially connected through the insertion holes and plugs. Both rotomolded boxes are rotatably connected to the support ring.

[0015] As a preferred embodiment of this utility model, a mounting bracket is fixedly connected to the lower surface of the low plate, a threaded rod is rotatably mounted inside the mounting bracket, a handle is rotatably connected to the outside of the mounting bracket, the handle is coaxially fixedly connected to the threaded rod, a slider that is threadedly connected to the threaded rod is slidably mounted inside the mounting bracket, a sliding rod is installed inside the connecting bracket, a slider is slidably connected to the sliding rod, and a linkage frame is installed between the three sliders.

[0016] As a preferred embodiment of this invention, the two supports are at the same height.

[0017] The beneficial effects of this utility model are:

[0018] 1. This type of rotational molding mold positioning mechanism connects the rotational molding box to the turntable through the insertion of the insert rod and the through hole. The turntable is sleeved on the outside of the rotating shaft and provides support and stability for the rotating shaft during the rotational molding process. The turntable absorbs some vibration and avoids damage to the connection end caused by the vibration of the rotating shaft during the high-speed rotational molding process. In addition, the position of one of the brackets can be adjusted by rotating the threaded rod, which can not only adjust the clamping effect of the bracket on the rotational molding box, but also facilitate the disassembly of the rotational molding box and accelerate the demolding process.

[0019] 2. The two rotational molding boxes are assembled into a whole and connected by plug-in. When the rotational molding boxes are assembled, their edges are located inside the support ring. This not only allows the gears to drive the two rotational molding boxes to rotate and mold simultaneously, but also prevents the internal rotational molding liquid from seeping out and affecting the overall molding of the rotational molding. The support ring provides support from the middle to reduce the overall vibration of the mold during the rotational molding process and improves the stability of the positioning structure. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the support structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the rotomolded box structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the support ring structure of this utility model;

[0025] Figure 5 This is a side view of the base frame structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the connecting frame and mounting frame structure of this utility model;

[0027] In the diagram: 1. Positioning plate; 101. High plate; 102. Low plate; 2. Support ring; 3. Rotomolded box; 4. Bracket; 5. Turntable; 6. Connecting frame; 7. Handle; 8. Through hole; 9. Snap ring; 10. Rotary shaft; 11. Reinforcing rib; 12. Gear; 13. Insert rod; 14. Base frame; 15. Servo motor; 16. Gear; 17. Docking cavity; 18. Reserved slot; 19. Linkage frame; 20. Mounting frame. Detailed Implementation

[0028] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0029] Example: Figure 1-6 As shown, a rotational molding mold positioning mechanism includes a positioning plate 1 and a rotational molding box 3. The positioning plate 1 is configured as an integrated high plate 101 and a low plate 102 with different heights. A base frame 14 is installed on the upper surface of the connection between the high plate 101 and the low plate 102.

[0030] Two rotomolding boxes 3 are provided, and the ends of the two rotomolding boxes 3 are joined together as a whole. The other ends of the two rotomolding boxes 3 are respectively coaxially fixed with rotating shafts 10. Several insert rods 13 are also welded to the ends of the rotomolding boxes 3.

[0031] A support ring 2 is installed on the top of the base frame 14, and the support ring 2 is fitted at the joint of the two rotomolded boxes 3;

[0032] Both the upper part of the high plate 101 and the lower plate 102 are provided with brackets 4. Two connecting frames 6 are installed on the upper surface of the lower plate 102. The brackets 4 on the lower plate 102 are slidably connected to the connecting frames 6.

[0033] A retaining ring 9 is installed on the top of the bracket 4. A turntable 5 is rotatably connected inside the retaining ring 9, and the insertion rod 13 is inserted into the turntable 5.

[0034] A limiting structure is provided between the inner surfaces of the turntable 5 and the retaining ring 9. Lubricating grease is provided between the turntable 5 and the retaining ring 9 to reduce the frictional resistance between the turntable 5 and the retaining ring 9, and at the same time reduce the wear of the support caused by the heat generated during the high-speed rotation of the rotational molding process. Several through holes 8 are provided on the surface of the turntable 5.

[0035] The positions of the through holes 8 correspond one-to-one with the insertion rods 13, and the insertion rods 13 are inserted into the through holes 8. The rotating shaft 10 passes through the turntable 5 and is rotatably connected to the turntable 5. Reinforcing ribs 11 are installed on both sides of the bracket 4 to improve the stability of the bracket 4.

[0036] The outer surface of the docking end of the rotomolding box 3 is equipped with several evenly distributed teeth 12. The base frame 14 is rotatably installed with two gears 16. The inner surface of the base frame 14 is provided with docking cavities 17 at both ends. The bottom of the docking cavity 17 is provided with a reserved groove 18. The gears 16 pass through the reserved groove 18 upward and mesh with the teeth 12.

[0037] A servo motor 15 is mounted on the outer surface of the base frame 14. The output shaft of the servo motor 15 is coaxially and fixedly connected to two gears 16. The two rotomolded boxes 3 are respectively provided with sockets and plugs at their mating ends. The two rotomolded boxes 3 are coaxially connected through the sockets and plugs. Both rotomolded boxes 3 are rotatably connected to the support ring 2.

[0038] After the two rotational molding boxes 3 are connected, they mesh with the two gears 16 respectively. The servo motor 15 drives the two rotational molding boxes 3 to rotate simultaneously, realizing the rotational molding process.

[0039] A mounting bracket 20 is fixedly connected to the lower surface of the low plate 102. A threaded rod is rotatably installed inside the mounting bracket 20. A handle 7 is rotatably connected to the outside of the mounting bracket 20. The handle 7 is coaxially fixedly connected to the threaded rod. A slider that is threadedly connected to the threaded rod is slidably installed inside the mounting bracket 20. A sliding rod is installed inside the connecting bracket 6. A slider is slidably connected to the sliding rod. A linkage frame 19 is installed between the three sliders. By rotating the handle 7, the threaded rod can be rotated, thereby driving one of the rotational molding boxes 3 to move through the linkage frame 19, realizing the rapid demolding and docking of the two rotational molding boxes 3.

[0040] The two supports 4 are at the same height, which ensures that the height of the two rotomolded boxes 3 remains consistent and accurate during the docking process.

[0041] Working principle: In use, this type of rotational molding mold positioning mechanism can drive the threaded rod to rotate by turning the handle 7, thereby driving one of the rotational molding boxes 3 to move through the linkage frame 19, realizing the rapid docking of the two rotational molding boxes 3. After docking, the two rotational molding boxes 3 respectively mesh with the two gears 16. The servo motor 15 drives the two rotational molding boxes 3 to rotate simultaneously. A limit structure is set between the inner surface of the turntable 5 and the retaining ring 9. There is grease between the turntable 5 and the retaining ring 9 to reduce the frictional resistance between the turntable 5 and the retaining ring 9, and at the same time reduce the wear of the bracket caused by the heat generated during the high-speed rotation of the rotational molding. The position of the through hole 8 corresponds one-to-one with the insertion rod 13, and the insertion rod 13 is inserted into the through hole 8 to improve the stability of the rotational molding box 3 during rotation.

[0042] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rotational molding die positioning mechanism, comprising a positioning plate (1) and a rotational molding box (3), characterized in that, The positioning plate (1) is configured as an integrated high plate (101) and low plate (102) of different heights, and a base frame (14) is installed on the upper surface of the connection between the high plate (101) and the low plate (102). The rotomolding box (3) is configured as two, the ends of the two rotomolding boxes (3) are joined together as a whole, and the other ends of the two rotomolding boxes (3) are respectively coaxially fixedly installed with a rotating shaft (10). Several insert rods (13) are also welded to the ends of the rotomolding box (3). A support ring (2) is installed on the top of the base frame (14), and the support ring (2) is fitted onto the joint of the two rotomolded boxes (3); The upper part of the high plate (101) and the low plate (102) are both provided with brackets (4), and two connecting frames (6) are installed on the upper surface of the low plate (102). The brackets (4) on the low plate (102) are slidably connected to the connecting frames (6). A retaining ring (9) is installed on the top of the bracket (4), and a turntable (5) is rotatably connected inside the retaining ring (9). The insert rod (13) is inserted into the turntable (5).

2. The rotational molding die positioning mechanism according to claim 1, characterized in that, A limiting structure is provided between the inner surfaces of the turntable (5) and the retaining ring (9), and grease is provided between the turntable (5) and the retaining ring (9). Several through holes (8) are provided on the surface of the turntable (5).

3. The rotational molding die positioning mechanism according to claim 2, characterized in that, The position of the through hole (8) corresponds one-to-one with the insertion rod (13), and the insertion rod (13) is inserted into the through hole (8). The rotating shaft (10) passes through the turntable (5), and the rotating shaft (10) is rotatably connected to the turntable (5). Reinforcing ribs (11) are installed on both sides of the bracket (4).

4. The positioning mechanism for a rotational molding die according to claim 1, characterized in that, The outer surface of the docking end of the rotomolded box (3) is equipped with several evenly distributed teeth (12). The base frame (14) is rotatably installed with two gears (16). The inner surfaces of the base frame (14) are respectively provided with docking cavities (17). The bottom of the docking cavity (17) is provided with a reserved groove (18). The gears (16) pass through the reserved groove (18) upward and mesh with the teeth (12).

5. The rotational molding die positioning mechanism according to claim 4, characterized in that, A servo motor (15) is installed on the outer surface of the base frame (14). The output shaft of the servo motor (15) is coaxially fixedly connected to two gears (16). The docking ends of the two rotomolded boxes (3) are respectively provided with sockets and plugs. The two rotomolded boxes (3) are coaxially connected through the sockets and plugs. The two rotomolded boxes (3) are rotatably connected to the support ring (2).

6. The positioning mechanism for a rotational molding die according to claim 1, characterized in that, A mounting bracket (20) is fixedly connected to the lower surface of the low plate (102). A threaded rod is rotatably installed inside the mounting bracket (20). A handle (7) is rotatably connected to the outside of the mounting bracket (20). The handle (7) is coaxially fixedly connected to the threaded rod. A slider that is threadedly connected to the threaded rod is slidably installed inside the mounting bracket (20). A sliding rod is installed inside the connecting bracket (6). A slider is slidably connected to the sliding rod. A linkage bracket (19) is installed between the three sliders.

7. The positioning mechanism for a rotational molding die according to claim 1, characterized in that, The two supports (4) are at the same height.

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