Swinging full-automatic rotational molding machine

Abstract

The utility model discloses a swing full-automatic rotational molding machine which comprises a main frame, a ground track, a transfer trolley, a rotational molding mold and the like, a swing frame and a heating chamber which are installed in a swing mode are arranged on the top of the main frame, and stand columns and lifting mechanisms on the stand columns are arranged on the two sides of the ground track respectively. Therefore, the lifting mechanism can enable the two supporting frames and the rotational molding mold to be jointly separated from the transfer trolley to ascend or descend to be loaded on the transfer trolley, the ascending rotational molding mold enters the heating chamber from an inlet in the bottom of the heating chamber, and supporting shafts at the two ends of the rotational molding mold respectively enter open grooves in the two ends of the heating chamber. And the two supporting frames are detachably locked on the swing frame through the limiting assemblies, so that the two supporting frames can be jointly driven by the swing frame to swing, and rotational molding materials can be uniformly distributed in the rotational molding mold in cooperation with the rotation of the rotational molding mold around the supporting shaft. The improved structure has the advantages of improving the production efficiency, reducing the use requirements of the installation environment, being better suitable for automatic production, ensuring the production quality of rotational molding products and the like.

Description

Technical Field

[0001] This utility model relates to a rotational molding machine, specifically a swing-type fully automatic rotational molding machine. Background Technology

[0002] Currently, after the rotational molding mold loaded on the transfer vehicle is transported to the heating station, it often needs to be hoisted from the top of the heating chamber into the heating chamber, or both the transfer vehicle and the heating chamber are set on ground tracks. If the heating chamber is designed with a side-opening door, the transfer vehicle can send the rotational molding mold into the heating chamber through the side-opening door along the ground tracks. However, the hoisting method has several drawbacks: First, it's difficult to accurately position the rotational molding mold within the heating chamber; second, there are safety hazards such as detachment during hoisting; and third, it's difficult to automate the mold transportation and heating processes, impacting production efficiency. Furthermore, while the side entry of the transfer vehicle into the heating chamber eliminates the hassle of hoisting, the heating chamber's structure, similar to a roof, means that both the ground beneath and the track leading into the chamber are affected by the heating temperature, thus placing higher demands on the installation environment. Additionally, the rotational molding mold can only distribute the material within the heating chamber through its own rolling motion. In practice, this rolling alone can cause material to accumulate at both ends of the mold, compromising the uniformity of material distribution and affecting the quality of the rotationally molded products. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a rotational molding mold heating chamber that can improve production efficiency, reduce the requirements of the installation environment, be better suited for automated production, and ensure the production quality of rotational molding products.

[0004] The technical problem of this utility model is solved by the following technical solution:

[0005] An automatic rotational molding machine includes a main frame mounted on the ground, a ground track passing underneath the main frame, a transfer trolley traveling on the ground track, and a rotational molding mold containing rotational molding material. The rotational molding mold is rotatably supported on two support frames via support shafts at both ends, and then loaded onto the transfer trolley by the two support frames. The top of the main frame has a swing frame and a heating chamber fixed within the swing frame. The swing frame is swaying within the main frame via swing shafts on both sides. The bottom of the heating chamber has an entrance and a door for opening and closing the entrance. Both ends of the heating chamber have downward-facing opening slots and opening / closing strips for opening and closing the opening slots. Columns are respectively provided on both sides of the ground track. Each column is equipped with a lifting mechanism, which lifts the two support frames and the rotational molding mold together from the transfer vehicle and moves them upward or downward, then reloads them onto the transfer vehicle. When the two support frames and the rotational molding mold move upward together, the rotational molding mold enters the heating chamber from the inlet, the support shafts at both ends of the rotational molding mold enter the opening slots at both ends of the heating chamber, and the two support frames are detachably locked onto the swing frame by the limiting components. The swing frame causes the heating chamber, the rotational molding mold inside the heating chamber, and the two support frames on the swing frame to swing together within the main frame. This, combined with the rotational molding mold's rotation around the support shaft, evenly distributes the rotational molding material within the rotational molding mold.

[0006] The lifting mechanism includes a lifting frame and a lifting arm that are slidably mounted on a column, as well as a lifting cylinder and a lifting chain disposed inside the column. The lifting frame is equipped with pulleys, and the lower end of the lifting chain is fixed to the bottom of the column, while the upper end passes over the pulleys of the lifting frame and connects downward to the lifting frame. The lifting cylinder drives the lifting frame to move up and down along the column, and the pulleys push the lifting chain to pull the lifting frame to form synchronous lifting and lowering.

[0007] The lifting frame includes a sliding seat that is slidably mounted on the inner side of the column and a pair of forks that are horizontally mounted on the sliding seat. The pair of forks are driven to rotate by a fork cylinder on the sliding seat and simultaneously perpendicular to the sliding seat to hold the support frame together, thereby supporting the support frame to move up and down, or simultaneously flat against the sliding seat and detaching from the support frame together.

[0008] The swing frame is a rectangular frame, with swing shafts on both sides symmetrically arranged at the center of the two long sides. The swing frame is supported by the swing shafts within the rectangular frame at the top of the main frame, and the two short sides of the swing frame form swing ends. The line connecting the centers of the two swing shafts forms the swing axis centerline. The heating chamber is a regular octagonal prism chamber fixed horizontally inside the swing frame, and the opening slots at both ends of the heating chamber correspond to the two swing ends of the swing frame.

[0009] The swing frame has a semi-circular drive disc on each of its two long sides, and each drive disc has a drive mechanism below it that drives the drive disc to reciprocate.

[0010] The line connecting the centers of the two drive discs is parallel to the swing axis of the swing frame and lies on the same vertical plane as the swing axis.

[0011] The drive mechanism includes a motor fixed on the swing frame and a sprocket driven by the motor, and a drive chain surrounding the semi-circular outer circumference fixed on the drive disk, with the sprocket meshing with the drive chain; the motor drives the drive chain via the sprocket, which in turn drives the drive disk fixed to the drive chain to reciprocate, thereby causing the swing frame to swing.

[0012] The limiting assembly includes a limiting seat and a guide sleeve fixed on the swing frame. A limiting cylinder and a flipping block are installed on the limiting seat. A limiting rod is movably fitted inside the guide sleeve, and a connecting rod is provided between the rear end of the limiting rod and the flipping block. The limiting cylinder pushes the flipping block to flip outward, and the connecting rod drives the limiting rod to move forward along the guide sleeve and insert into the lock hole of the support frame to form a lock. Conversely, the limiting cylinder retracts, causing the limiting rod to exit the lock hole to form an unlock.

[0013] The transfer vehicle is equipped with several air coolers on one side, and these air coolers blow cold air onto the rotational molding mold.

[0014] The main frame is a frame structure consisting of a rectangular frame and four supporting legs that are respectively supported at the four corners of the rectangular frame.

[0015] Compared with the prior art, this utility model mainly features a swing frame and a heating chamber fixed inside the swing frame at the top of the main frame. The swing frame is swayed and installed inside the main frame via swing shafts on both sides. The bottom of the heating chamber has an entrance and a door for opening and closing the entrance. Both ends of the heating chamber have downward-facing opening slots and opening and closing strips for opening and closing the opening slots. Furthermore, columns are installed on both sides of the ground track, and each column is equipped with a lifting mechanism. Thus, the lifting mechanisms on both columns can lift the two support frames and the rotational molding mold together off the transfer vehicle and move them upward or downward together, and then reload them onto the transfer vehicle. In this way, when the two support frames and the rotational molding mold move upward together, the rotational molding mold can enter the heating chamber through the entrance, the support shafts at both ends of the rotational molding mold can enter the opening slots at both ends of the heating chamber, and the two support frames can be stopped by limiting their movement. The components are detachably locked onto the swing frame. Then, the swing frame drives the rotational molding mold and the two support frames to swing together within the main frame. In conjunction with the rotational molding mold's rotation around the support axis, the rotational molding material is evenly distributed within the mold, thus greatly ensuring the uniformity of the material distribution and guaranteeing the production quality of the rotationally molded products. Obviously, in the above structural improvements, the addition of columns and lifting structures to perfectly connect the mold transportation and heating processes, combined with the high-mounted heating chamber and the entrance design at the bottom of the heating chamber, allows the entire mold to be suspended for heating. This makes the heating process of the mold more suitable for automated production, improving production efficiency, while avoiding the impact of the heating process on the ground and ground tracks, thus greatly reducing the requirements for the installation environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 for Figure 1 The left view.

[0018] Figure 3 for Figure 2 Sectional view A-A.

[0019] Figure 4 for Figure 2 B-B sectional view.

[0020] Figure 5 for Figure 2 Top view.

[0021] Figure 6 for Figure 1 A three-dimensional image.

[0022] Figure 7 This is a structural diagram of the column and the lifting mechanism installed on the column.

[0023] Figure 8 This is a schematic diagram of the heating chamber installed inside the swing frame (both the inlet and the opening slot are in the open state).

[0024] Figure 9 for Figure 8 A three-dimensional image.

[0025] Figure 10 for Figure 9 A schematic diagram of the structure after removing the swing frame.

[0026] Figure 11 for Figure 8 A schematic diagram of the structure of the rotational molding mold entering the heating chamber and then closing.

[0027] Figure 12 for Figure 11 A schematic diagram of the structure after removing the swing frame.

[0028] Figure 13 This is a schematic diagram of the limit component.

[0029] Figure 14 A schematic diagram of the main framework.

[0030] Figure 15 This is a schematic diagram of the support frame. Detailed Implementation

[0031] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] like Figures 1 to 15 As shown, 1. Main frame, 11. Rectangular frame, 12. Support leg, 2. Ground track, 3. Transfer vehicle, 31. Wheel set, 32. Lock assembly, 4. Rotational molding mold, 41. Support shaft, 42. Support frame, 421. Lock hole, 43. Reducer, 5. Column, 6. Swing frame, 61. Swing shaft, 62. Drive disc, 63. Drive mechanism, 631. Motor, 632. Sprocket, 633. Drive chain, 7. Heating chamber, 71. Entrance 72. Door, 73. Push cylinder, 74. Opening slot, 75. Opening and closing bar, 8. Lifting mechanism, 81. Lifting frame, 811. Sliding seat, 812. Fork rod, 813. Fork rod cylinder, 82. Lifting frame, 821. Pulley, 83. Lifting cylinder, 84. Lifting chain, 9. Limiting assembly, 91. Limiting seat, 92. Guide sleeve, 93. Limiting cylinder, 94. Tilting block, 95. Connecting rod, 96. Limiting rod, 10. Air cooler.

[0033] A type of oscillating fully automatic rotational molding machine, such as Figures 1-6 As shown, it is mainly applicable to the automated production and manufacturing of rotational molding products. Its structure mainly consists of a main frame 1, ground track 2, transfer car 3, rotational molding mold 4, column 5, swing frame 6 and heating chamber 7.

[0034] The main frame 1 is a frame structure consisting of a rectangular frame 11 and four support legs 12 that are respectively supported at the four corners of the rectangular frame, and the main frame 1 is fixedly installed on the ground by the four support legs 12.

[0035] The number of ground tracks 2 is arranged according to actual production needs. In this embodiment, a total of five parallel and equidistant ground tracks are used, and all five ground tracks 2 pass under the main frame 1.

[0036] The transfer vehicle 3 operates simultaneously on five ground tracks 2 via five sets of wheels 31 at the bottom, allowing it to move freely and flexibly on these five ground tracks 2, thus enabling it to shuttle back and forth under the main frame 1.

[0037] The rotational molding mold 4 contains various types of rotational molding materials, such as powder or granules, to melt and rotate after heating the mold, thus producing various types of rotational molded products. Simultaneously, the rotational molding mold 3 is rotatably supported on two support frames 42 via support shafts 41 at both ends, and then loaded onto a transfer vehicle 3 by the two support frames. In actual use, the rotation of the support shafts 41 can be driven by a reducer 43 mounted on the support frames 42, thereby causing the rotational molding mold 4 to roll between the two support frames 42. This ensures that the rotational molding material is evenly distributed within the mold 4. The two support frames 42 can usually be temporarily locked by multiple locking assemblies 32 on the transfer vehicle 3 to prevent displacement during transport and avoid affecting the accuracy of the connection with subsequent processes.

[0038] The swing frame 6 is set inside the rectangular frame 11 at the top of the main frame 1, and the heating chamber 7 is fixed inside the swing frame 6. Specifically, the swing frame is designed as a rectangular frame, and the swing shafts 61 on both sides of the swing frame are symmetrically set at the center of the two long sides. When the swing frame 6 is supported on the bearings on both sides of the rectangular frame 11 by swinging through the swing shafts 61, the two short sides of the swing frame form the swing end, and the axis connecting the two swing shafts 61 on both sides forms the swing axis line.

[0039] The swing frame 6 has a semi-circular drive disk 62 on each of its two long sides. The line connecting the centers of the two drive disks is parallel to the swing axis of the swing frame 6 and is on the same vertical plane as the swing axis. Each drive disk 62 is provided with a drive mechanism 63 below it to drive the drive disk to reciprocate.

[0040] The drive mechanism 63 includes a motor 631 fixed on the swing frame 6 and a sprocket 632 driven by the motor. It also includes a drive chain 633 surrounding the semi-circular outer circumference of the drive disk 62, which is a semi-circular shape formed by the drive chain partially surrounding the drive disk 62. The sprocket 632 meshes with the drive chain 633. Therefore, the motor 631 drives the drive chain 633 via the sprocket 632, which in turn drives the drive disk 62 fixed to the drive chain to reciprocate, thereby causing the swing frame 6 to swing. In this embodiment, the two drive mechanisms 63 drive the drive disks 62 on both sides to jointly drive the swing frame 6 to swing. The purpose is to use sufficient driving force to ensure the swing stability of the swing frame 6.

[0041] The heating chamber 7 is a regular octagonal prism chamber horizontally fixed inside the swing frame 6. Therefore, the swing frame 6 will drive the heating chamber 7 to swing synchronously. The bottom of the heating chamber 7 is provided with an inlet 71 and a door 72 for opening and closing the inlet. In this embodiment, for example... Figures 8-10 The chamber door structure shown adopts a double-folding door, and the chamber door can be automatically opened and closed by multiple push cylinders 73 provided on the outer surface of the heating chamber. The heating chamber 7 has a downward-facing opening slot 74 and an opening and closing strip 75 for opening and closing the opening slot at both ends, and the opening slots 74 at both ends of the heating chamber correspond to the two swing ends of the swing frame 6 respectively.

[0042] The purpose of designing the opening slot 74 is to allow the support shaft 41 supporting the rotational molding mold 4 to also rise to the same height as the rotational molding mold 4 by entering the opening slot 74 after the rotational molding mold 4 rises and enters the heating chamber 7 through the inlet 71, thereby avoiding the support shaft 41 being blocked by the bottom of both ends of the heating chamber 7 and causing upward interference.

[0043] Then, the ground track 2 is provided with a frame structure column 5 on both sides. Each column is equipped with a lifting mechanism 8. The lifting mechanism on both sides will lift the two support frames 42 and the rotational molding mold 4 together off the transfer car 3 and move them up or down together and reload them onto the transfer car 3.

[0044] Of course, the two side columns 5 are usually set below the main frame 1 and in the middle of the two same-side support legs 12. The purpose is to ensure that when the rotational molding mold 4 transported by the transfer vehicle 3 is in the connection position with the lifting mechanism 8 on the column 5, it can be located directly below the entrance 71 at the bottom of the heating chamber 7. This makes it convenient for the lifting mechanism 8 to lift the rotational molding mold 4 and accurately enter the heating chamber 7 through the entrance 71.

[0045] When the two support frames 42 and the rotational molding mold 4 move upward together, the rotational molding mold will enter the heating chamber 7 through the inlet 71. The support shafts 41 at both ends of the rotational molding mold 4 will enter the opening slots 74 at both ends of the heating chamber 7 respectively. The two support frames 42 are detachably locked to the swing frame 6 by the limiting component 9. Then the chamber door 72 closes the inlet 71 to seal the rotational molding mold 4 in the heating chamber 7. The opening and closing strip 75 closes the opening slot 74 to prevent the heat in the heating chamber 7 from dissipating. The opening and closing strip 75 is usually designed with a notch to hold the support shaft 41 to prevent the support shaft from obstructing the closing of the opening and closing strip 75.

[0046] Therefore, the swing frame 6 can drive the heating chamber 7, the rotational molding mold 4 inside the heating chamber, and the two support frames 42 on the swing frame 6 to swing together within the rectangular frame 11 of the main frame 1. Combined with the rotational molding mold 4 rotating around the support shaft 41, the rotational molding material can be evenly distributed within the rotational molding mold. The rotational molding material will not accumulate at both ends of the rotational molding mold as it swings, thus greatly ensuring the uniformity of the distribution of the rotational molding material within the rotational molding mold, which in turn ensures the production quality of the rotational molding products.

[0047] The lifting mechanism 8 includes a lifting frame 81 and a lifting frame 82 that are slidably mounted on the column 5. The lifting frame is equipped with pulleys 821. This type of lifting and sliding structure usually involves setting a vertical slide rail on the column 5, and then sliding the lifting frame 81 or the lifting frame 82 within the vertical slide rail via a pre-set slider, which ensures the accuracy and convenience of the sliding process.

[0048] The lifting mechanism 8 also includes a lifting cylinder 83 and a lifting chain 84. The lower end of the lifting chain is fixed to the bottom of the column 5, and the upper end passes over the pulley 821 of the lifting frame 82 and is connected downward to the lifting frame 81. Therefore, by driving the lifting frame 82 to move up and down along the column 5 through the lifting cylinder 83, the lifting chain 84 can be pushed by the pulley 821 to pull the lifting frame 81 to form synchronous lifting and lowering. In order to ensure the reliability of the lifting structure 8, this embodiment uses two parallel lifting chains 84 to pull the lifting frame 81 up and down at the same time.

[0049] The lifting frame 81 includes a sliding seat 811 that is slidably mounted on the inner side of the column 5 and a pair of horizontally arranged forks 812 on the sliding seat. The pair of forks are driven by two fork cylinders 813 on the sliding seat and rotate synchronously. That is, the pair of fork cylinders 813 can drive the pair of forks 812 to be perpendicular to the sliding seat 811 at the same time, so that they can jointly hold the support frame 42 and support the support frame to move up and down, or drive the pair of forks 812 to be flat against the sliding seat 811 at the same time, so that they can jointly detach from the support frame 42.

[0050] The purpose of this structure is to ensure the smooth connection of various production processes. For example, only when a pair of forks 812 are simultaneously flat against the sliding seat 811 can the transfer vehicle 3 accurately transport the rotational molding mold 4 to the connection position on one side of the column 5 or transport the rotational molding mold 4 away from the connection position. The entire transfer process is not constrained by the forks, and it also prevents the transfer vehicle from accidentally damaging the forks 812. Then, after a pair of forks jointly hold the support frame 42 and support the support frame to rise into place, the support frame 42 is detachably locked onto the swing frame 6 by the limiting component 9. That is, after the support frame 42 is temporarily fixed to the swing frame 6 by the limiting component 9, the pair of forks 812 must simultaneously flat against the sliding seat 811 and detach from the support frame 42. This can prevent a pair of forks 812 that are perpendicular to the sliding seat 811 from interfering with the swing frame 6 driving the support frame 42 to swing together.

[0051] The limiting component 9 includes a limiting seat 91 and a guide sleeve 92 fixed on the swing frame 6. A limiting cylinder 93 and a flipping block 94 are installed on the limiting seat. A limiting rod 96 is movably fitted inside the guide sleeve 92, and a connecting rod 95 is hinged between the rear end of the limiting rod and the flipping block 94. The limiting cylinder 93 pushes the flipping block 94 to flip outward, and the connecting rod 95 drives the limiting rod 96 to move forward along the guide sleeve 92 and insert into the preset locking hole 421 on the support frame 42 to form a lock. Conversely, the limiting cylinder 93 retracts and drives the limiting rod 96 to exit the locking hole 421 to form an unlock. In this embodiment, four limiting components 9 are designed for one support frame 42. Every two limiting components are arranged as a group and symmetrically arranged on both sides of the support frame. This can better ensure the temporary locking of the support frame 42 on the swing frame 6, and the support frame will not fall off the swing frame 6 when the swing frame drives the support frame 42 to swing.

[0052] In addition, in actual production processes, ground track 2 is usually designed with features such as... Figure 6The two sets of transfer vehicles 3 shown are equipped with rotational molding molds 4 and are located on both sides of the main frame 1, that is, at both ends of the ground track 2. The purpose of this is to further improve production efficiency. For example, when one set of transfer vehicles transports the rotational molding mold into the heating chamber 7 for heating using the lifting mechanism 8, the rotational molding mold on the other set of transfer vehicles can wait on the ground track for cooling and demolding, so as to facilitate the subsequent removal of rotational molded products or the loading of materials into the rotational molding mold. Therefore, several air coolers 10 are usually set on one side of the transfer vehicle. These air coolers are vertical air coolers that can be moved freely. During the waiting for cooling and demolding, they can all blow cold air onto the rotational molding mold to accelerate the cooling process. After the rotational molded products are removed and reloaded, the rotational molding mold 4, which was previously heated in the heating chamber 7, is reloaded onto the transfer vehicle 3 using the lifting mechanism 8 and transported out. Then, these air coolers 10 are removed to blow cold air onto the heated rotational molding mold 4. Then, the rotational molding mold that has been loaded can be put into a new round of heating process.

[0053] This utility model, by adding a column 5 and a lifting structure 8 to perfectly connect the transportation and heating processes of the rotational molding mold, combined with the design of a high-mounted heating chamber 7 and an entrance 71 at the bottom of the heating chamber, enables the entire rotational molding mold 4 to be suspended for heating. This makes the heating process of the rotational molding mold more suitable for automated production, improving production efficiency, while avoiding the impact of the heating process on the ground and ground tracks, which greatly reduces the requirements for the installation environment.

[0054] The embodiments described above are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A fully automatic oscillating rotational molding machine, comprising a main frame (1) installed on the ground, a ground track (2) passing under the main frame, a transfer vehicle (3) traveling on the ground track, and a rotational molding mold (4) containing rotational molding material; wherein the rotational molding mold is rotatably supported on two support frames (42) by support shafts (41) at both ends, and is then loaded onto the transfer vehicle (3) by the two support frames, characterized in that: The main frame (1) is provided with a swing frame (6) and a heating chamber (7) fixed in the swing frame at the top. The swing frame (6) is swayed and installed in the main frame (1) by swing shafts (61) on both sides. The heating chamber (7) is provided with an entrance (71) and a door (72) for opening and closing the entrance at the bottom. The heating chamber (7) is provided with an opening slot (74) facing downward and an opening and closing strip (75) for opening and closing the opening slot at both ends. The ground track (2) is provided with columns (5) on both sides, and each column is provided with a lifting mechanism (8). The lifting mechanism on both sides will lift the two support frames (42) and the rotational molding mold (4) together off the transfer car (3) and move them up or down together and reload them onto the transfer car (3). When the two support frames (42) and the rotational molding mold (4) move up together, the rotational molding mold will enter the heating chamber (7) from the inlet (71), the support shafts (41) at both ends of the rotational molding mold will enter the opening slots (74) at both ends of the heating chamber, and the two support frames (42) will be detachably locked on the swing frame (6) by the limiting component (9). The swing frame will drive the heating chamber (7), the rotational molding mold (4) in the heating chamber and the two support frames (42) on the swing frame to swing together in the main frame (1), and cooperate with the rotational molding mold (4) to rotate around the support shaft (41), thereby distributing the rotational molding material evenly in the rotational molding mold (4).

2. The fully automatic oscillating rotational molding machine according to claim 1, characterized in that... The lifting mechanism (8) includes a lifting frame (81) and a lifting frame (82) that are slidably mounted on the column (5), as well as a lifting cylinder (83) and a lifting chain (84) installed inside the column (5). The lifting frame (82) is provided with a pulley (821). The lower end of the lifting chain (84) is fixed to the bottom of the column (5), and the upper end passes around the pulley (821) of the lifting frame (82) and is connected downward to the lifting frame (81). The lifting cylinder (83) drives the lifting frame (82) to rise and fall along the column (5), and uses the pulley (821) to push the lifting chain (84) to pull the lifting frame (81) to form synchronous lifting and falling.

3. The fully automatic rotational molding machine according to claim 2, characterized in that... The lifting frame (81) includes a sliding seat (811) that is slidably mounted on the inner side of the column (5) and a pair of forks (812) that are horizontally mounted on the sliding seat. The pair of forks are driven to rotate by the fork cylinder (813) on the sliding seat (811) and simultaneously perpendicular to the sliding seat (811) to hold the support frame (42) together, thereby supporting the support frame to move up and down, or simultaneously flat against the sliding seat (811) and detaching from the support frame (42).

4. The fully automatic rotational molding machine according to claim 1, characterized in that... The swing frame (6) is a rectangular frame. The swing shafts (61) on both sides of the swing frame are symmetrically arranged at the center of the two long sides. The swing frame (6) is supported by the swing shafts (61) in the rectangular frame (11) at the top of the main frame (1) and the two short sides of the swing frame (6) form swing ends. The axis connecting the two swing shafts (61) forms the swing axis line. The heating chamber (7) is a regular octagonal prism chamber fixed horizontally in the swing frame (6). The opening slots (74) at both ends of the heating chamber (7) correspond to the two swing ends of the swing frame (6).

5. A fully automatic oscillating rotational molding machine according to claim 4, characterized in that... The swing frame (6) has a semi-circular drive disk (62) on each of its two long sides, and a drive mechanism (63) is provided below each drive disk to drive the drive disk to reciprocate.

6. A fully automatic oscillating rotational molding machine according to claim 5, characterized in that... The line connecting the centers of the two drive discs (62) is parallel to the swing axis of the swing frame (6) and is on the same vertical plane as the swing axis.

7. A fully automatic oscillating rotational molding machine according to claim 5, characterized in that... The drive mechanism (63) includes a motor (631) fixed on the swing frame (6) and a sprocket (632) driven by the motor. It also includes a drive chain (633) surrounding the semi-circular outer circumference fixed on the drive disk (62), and the sprocket (632) meshes with the drive chain (633). The motor (631) drives the drive chain (633) through the sprocket (632), which in turn drives the drive disk (62) fixed to the drive chain to reciprocate, thereby driving the swing frame (6) to swing.

8. A fully automatic oscillating rotational molding machine according to claim 1, characterized in that... The limiting component (9) includes a limiting seat (91) and a guide sleeve (92) fixed on the swing frame (6). A limiting cylinder (93) and a flipping block (94) are installed on the limiting seat. A limiting rod (96) is provided in the guide sleeve (92), and a connecting rod (95) is provided between the rear end of the limiting rod and the flipping block (94). The limiting cylinder (93) pushes the flipping block (94) to flip outward, and the connecting rod (95) drives the limiting rod (96) to move forward along the guide sleeve (92) and insert into the locking hole (421) of the support frame (42) to form a lock. Conversely, the limiting cylinder (93) retracts and drives the limiting rod (96) to exit the locking hole (421) to form an unlock.

9. A fully automatic oscillating rotational molding machine according to claim 1, characterized in that... The transfer vehicle (3) is equipped with several air coolers (10) on one side, and the air coolers (10) blow cold air onto the rotational molding mold (4).

10. A fully automatic oscillating rotational molding machine according to claim 1, characterized in that... The main frame (1) is a frame structure consisting of a rectangular frame (11) and four supporting legs (12) that are respectively supported at the four corners of the rectangular frame.

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