Double-station swing roll-molding machine with automatic feeding of secondary and tertiary materials

Abstract

The utility model discloses a double position lower ejection swing rotational moulding machine with automatic secondary and tertiary material adding belongs to swing rotational moulding machine technical field, including mounting bracket, and the main bracket of rotation installation is installed above mounting bracket, and the inside installation of main bracket has oven, and the top of main bracket is provided with feeding assembly, the feeding assembly includes the feeding opening, and the below of feeding opening corresponds to have oven. This double position lower ejection swing rotational moulding machine with automatic secondary and tertiary material adding is provided with feeding opening, utilizes the top of main bracket and is provided with feeding opening, then the below of feeding opening corresponds to have oven, can when swing rotational moulding machine needs temporary feeding to material rolling processing, only needs to convey material to the inside of oven through feeding opening, through adopting the mode of top feeding can realize secondary and tertiary feeding, avoids the phenomenon of wasting time when the oven adds in the later period because of the material in the oven still being in the overheating situation.

Description

Technical Field

[0001] This utility model relates to the field of gyratory rotational molding machine technology, specifically a dual-station gyratory rotational molding machine with automatic second and third feeding. Background Technology

[0002] A gyratory rotational molding machine is a type of mechanical equipment used in the rotational molding industry. It works by using the gyratory and rotating motion of a mold to evenly distribute and melt plastic powder or liquid material within the mold cavity under heating conditions, aided by gravity and centrifugal force. The material then enters a cooling process, and after cooling, it is demolded to obtain a hollow plastic product. For example, in existing technology 1 (Chinese patent application number CN202121300881.0, application date 2021-06-10), an oven-type gyratory rotational molding machine, a first motor rotates forward and backward to repeatedly rotate the support and the outer cylinder on the support. Heating wires and air vents are installed inside the inner cylinder; once the internal material is basically formed, the air vents automatically open, effectively cooling the material and increasing the cooling rate. A filter box is installed, and an electrostatic dust removal screen inside the filter box removes dust from the air entering the mold cavity, preventing dust from entering the mold cavity and damaging the material.

[0003] While existing technologies can achieve more convenient cooling and dust removal of materials and improve the processing efficiency of gyratory rotational molding machines, the automatic feeding device is prone to clogging when feeding high-viscosity, easily agglomerated plastic raw materials. This requires frequent cleaning, affecting production continuity and making it less practical. Therefore, a dual-station gyratory rotational molding machine with automatic secondary and tertiary feeding has been proposed to effectively solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a dual-station lower demolding gyratory rotational molding machine with automatic secondary and tertiary feeding, in order to solve the problem mentioned in the background art that the automatic feeding device of the current gyratory rotational molding machine on the market is prone to clogging when feeding high-viscosity, easily agglomerated plastic raw materials, requiring frequent cleaning, affecting production continuity, and having poor practicality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-station lower demolding oscillating rotational molding machine with automatic secondary and tertiary material feeding, including a mounting frame and a main support frame rotatably mounted above the mounting frame, wherein an oven is installed inside the main support frame, a feeding component is provided above the main support frame, and the feeding component is sealed to an external feeding system through a pipeline, wherein the feeding component includes a feeding port, and an oven is located below the feeding port.

[0006] Preferably, a drive motor is mounted on top of the mounting bracket, and the output end of the drive motor is engaged with a connecting gear through a drive assembly, and the output end of the main bracket is connected through the interior of the connecting gear.

[0007] Preferably, a drive motor is fixedly installed on the front side of the mounting bracket, and a transmission gear is installed at the output end of the drive motor. A half-tooth disc is meshed with the outer side of the transmission gear, wherein the half-tooth disc is installed on the outer side of the main bracket.

[0008] Preferably, hydraulic rods are symmetrically arranged below the oven, and the two hydraulic rods have the same structure, and a discharge door is rotatably connected to the bottom of the two hydraulic rods.

[0009] Preferably, a guide rail is positioned and installed below the mounting frame, and a movable frame is rotatably connected above the guide rail via rollers. A secondary bracket is rotatably connected above the two movable frames, wherein a storage trolley is installed inside the secondary bracket.

[0010] Preferably, a drive motor is installed inside the two movable frames, and a drive gear is installed at the output end of the drive motor. A rotating gear is meshed with the outer side of the drive gear, and the output end of a roller is connected through the inside of the rotating gear. A hook is fixedly installed on the outer side of the movable frame, and a top seat is correspondingly provided below the hook.

[0011] Preferably, the top seat is slidably mounted on the inner side wall of the auxiliary frame, and the auxiliary frame is fixedly mounted on the inner side wall of the mounting frame. A hydraulic cylinder is fixedly mounted below the auxiliary frame, and the top seat is fixedly connected above the hydraulic cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The machine is equipped with a feeding port located above the main support frame, with a corresponding drying oven below it. When additional material needs to be added during rotational molding of materials, the material can be fed into the drying oven through the feeding port. This top-feeding method allows for secondary and tertiary feeding, avoiding the wasted time caused by adding material to the drying oven while it is still overheated. This solves the problem of existing rotational molding machines having clogged automatic feeding devices when feeding high-viscosity, easily agglomerated plastic raw materials, requiring frequent cleaning, affecting production continuity, and having poor practicality.

[0013] Equipped with connecting gears, when the gyratory rotational molding machine processes materials, simply start the drive motor to drive the connecting gears to drive the main support frame to rotate and gyrate above the mounting frame. This ensures a more uniform distribution of materials. During the second feeding, there is already a layer of semi-molten material in the mold. The newly added material needs to be fully integrated with the bottom layer at high temperature. The mold rotation can maintain the activity of the bottom layer material through frictional heat generation, while the gyration allows the new material to evenly coat the bottom layer, avoiding interlayer peeling caused by insufficient contact in certain areas.

[0014] Equipped with a hydraulic rod connected to a discharge door at the bottom of the oven, the material is discharged from the oven and transported to a storage cart as the hydraulic rod opens the discharge door. This allows for simultaneous material loading and cooling at one station, preventing incompletely cooled products from occupying molds. This dual-station "heating-cooling" operation significantly improves production efficiency. The absence of incompletely cooled products frees up mold turnover, and combined with automatic feeding and demolding, optimizes the overall process continuity.

[0015] Equipped with a movable frame, two movable frames are connected below the sub-support frame. The two movable frames are then connected to a guide rail via rollers. While the material is being unloaded from the oven, the motor is started to drive the drive gear, which in turn drives the rollers to roll along the guide rail. This moves the storage cart installed inside the sub-support frame to the bottom of the oven, thus assisting in the unloading and discharge of materials, making it more practical.

[0016] Equipped with a hydraulic cylinder and a hook installed at the outer end of the sub-support, when the sub-support drives the storage cart to move to the bottom of the oven, the hook at the outer end of the sub-support will be above the top seat. At this time, the hydraulic cylinder is activated to drive the top seat to rise and move, so that the hook is inserted into the interior of the top seat. Then, the storage cart installed inside the sub-support can be driven to rise and move to the bottom of the oven through the hydraulic cylinder, which better assists the oven in unloading and discharging materials, and improves its practicality. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the swing rotational molding machine of this utility model; Figure 2 This is a side view of the three-dimensional structure of the oscillating rotational molding machine of this utility model; Figure 3 This is a three-dimensional structural diagram of the mounting frame and oven of this utility model; Figure 4 This is a partial three-dimensional structural diagram of the sub-support and storage cart of this utility model; Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a three-dimensional structural diagram of the main support frame and the drying oven from a bottom view. Figure 7 This is a bottom-view three-dimensional structural diagram of the mounting frame and drying oven of this utility model; Figure 8 This utility model Figure 7 Enlarged structural diagram at point B; Figure 9 This is a three-dimensional structural diagram of the hydraulic cylinder and auxiliary frame of this utility model.

[0018] In the diagram: 1. Mounting frame; 2. Main bracket; 3. Drying oven; 4. Feed port; 5. Sub-bracket; 6. Storage trolley; 7. Guide rail; 8. Moving frame; 9. Hydraulic cylinder; 10. Auxiliary frame; 11. Top seat; 12. Hook; 13. Drive gear; 14. Rotating gear; 15. Hydraulic rod; 16. Half-gear disc; 17. Transmission gear; 18. Connecting gear. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] This utility model provides the following technical solution: a dual-station lower demolding oscillating rotational molding machine with automatic secondary and tertiary material feeding: Example 1: To address the problem that existing gyratory rotational molding machines often experience clogging of the automatic feeding device when feeding high-viscosity, easily agglomerated plastic raw materials, requiring frequent cleaning, affecting production continuity, and resulting in poor practicality, the following solution is disclosed: a mounting frame 1, and a main support 2 rotatably mounted above the mounting frame 1, with an oven 3 installed inside the main support 2. Figure 1 and Figure 2 As shown, a feeding assembly is installed above the main support 2, and the feeding assembly is sealed to an external feeding system via a pipeline. The feeding assembly includes a feeding port 4, and an oven 3 is located below the feeding port 4. Figure 3 As shown.

[0021] A drive motor is mounted on top of mounting bracket 1, and the output end of the drive motor meshes with a connecting gear 18 via a drive assembly. The output end of the main bracket 2 is also internally connected to the connecting gear 18. Figure 3 As shown, a drive motor is fixedly mounted on the front side of the mounting bracket 1, and a transmission gear 17 is mounted on the output end of the drive motor. A half-tooth disc 16 is meshed with the outer side of the transmission gear 17, and the half-tooth disc 16 is mounted on the outer side of the main bracket 2. Figure 7 and Figure 8 As shown, hydraulic rods 15 are symmetrically arranged below the oven 3, and the two hydraulic rods 15 have the same structure. A discharge gate is rotatably connected below the two hydraulic rods 15. Figure 6 As shown.

[0022] When the gyratory rotational molding machine processes materials, it is only necessary to start the motor to drive the transmission gear 17 to drive the main support 2, which is connected through the outer side of the half-tooth disc 16, to gyrate. Figure 7 and Figure 8 As shown, this can drive the oven 3 installed inside the main bracket 2 to swing and mix materials. When the swing rotational molding machine needs to temporarily add material during the rotational molding process, the material can be conveyed into the oven 3 through the feeding port 4. Secondary and tertiary feeding can be achieved by using top feeding. Figure 3 As shown, this avoids the problem of wasting time when adding material to the oven 3 later because the material inside the oven 3 is still overheated. It also solves the problem that the automatic feeding device of the existing gyratory rotational molding machine is prone to clogging when feeding high-viscosity, easily agglomerated plastic raw materials, requiring frequent cleaning, affecting production continuity and having poor practicality.

[0023] During the rotational molding process of materials in the oscillating rotational molding machine, it is only necessary to start the drive motor to drive the connecting gear 18 to drive the main support 2 to rotate and oscillate above the mounting frame 1. Figure 3 As shown, this allows for a more uniform material distribution. During the second feeding, there is already a layer of semi-molten material inside the mold. The newly added material needs to be fully integrated with the bottom layer at high temperature. The rotation of the mold can maintain the activity of the bottom layer material through frictional heat generation, while the swaying can allow the new material to evenly coat the bottom layer, avoiding the phenomenon of interlayer peeling caused by insufficient contact in some areas.

[0024] Example 2, unlike Example 1, allows for material loading and cooling at one station simultaneously. Products not yet fully cooled and formed do not occupy the mold, thus improving the rotational molding efficiency of the gyratory rotational molding machine. The following is disclosed: A guide rail 7 is positioned below the mounting frame 1, and a movable frame 8 is rotatably connected above the guide rail 7 via rollers. A secondary bracket 5 is rotatably connected above the two movable frames 8, and a storage cart 6 is installed inside the secondary bracket 5. Figure 3 and Figure 4 As shown, drive motors are installed inside the two movable frames 8, and drive gears 13 are installed at the output ends of the drive motors. A rotating gear 14 is meshed with the outer side of the drive gear 13, and the output end of a roller is connected through the interior of the rotating gear 14. Figure 5 As shown, a hook 12 is fixedly installed on the outer side of the movable frame 8, and a top seat 11 is correspondingly installed below the hook 12. The top seat 11 is slidably installed on the auxiliary frame 10, and the auxiliary frame 10 is fixedly installed on the inner side wall of the mounting frame 1. A hydraulic cylinder 9 is fixedly installed below the auxiliary frame 10, and the top seat 11 is fixedly connected above the hydraulic cylinder 9. Figure 9 As shown.

[0025] When it is necessary to unload and discharge the processed materials inside the oven 3, simply start the motor to drive the drive gear 13, which in turn drives the rollers to roll along the guide rail 7 via the rotating gear 14. Figure 4 and Figure 5As shown, this can move the storage cart 6 installed inside the auxiliary bracket 5 to below the oven 3, thus assisting the oven 3 in unloading and discharging materials. When the auxiliary bracket 5 drives the storage cart 6 to below the oven 3, the hook 12 set at the outer end of the auxiliary bracket 5 will be above the top seat 11. At this time, the hydraulic cylinder 9 is activated to drive the top seat 11 to move upward, so that the hook 12 is inserted into the interior of the top seat 11. Then, the hydraulic cylinder 9 can drive the storage cart 6 installed inside the auxiliary bracket 5 to move upward to below the oven 3. Figure 9 As shown, at this time, the hydraulic rod 15 is activated to open the discharge door, and then the material will be discharged from the inside of the drying oven 3, as shown. Figure 6 and Figure 7 As shown, the material is transported to the interior of the storage cart 6, thus achieving the effect of one station loading and one station cooling. Products that have not been fully cooled and formed will not occupy the mold, realizing the parallel operation of "heating-cooling" at two stations, which greatly improves production efficiency. Products that have not been fully cooled do not occupy the mold, freeing up mold turnover efficiency. Combined with automatic feeding and demolding, the continuity of the entire process is optimized.

[0026] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0027] The contents not described in detail in this specification are existing technologies known to those skilled in the art. Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A dual-station lower demolding oscillating rotational molding machine with automatic secondary and tertiary material feeding, comprising a mounting frame (1) and a main support frame (2) rotatably mounted above the mounting frame (1), wherein an oven (3) is installed inside the main support frame (2). Its features are: A feeding assembly is provided above the main bracket (2), and the feeding assembly is sealed to an external feeding system through a pipeline. The feeding assembly includes a feeding port (4), and an oven (3) is located below the feeding port (4).

2. The dual-station lower demolding oscillating rotational molding machine with automatic secondary and tertiary material feeding as described in claim 1, characterized in that: A drive motor is mounted on the top of the mounting bracket (1), and the output end of the drive motor is engaged with a connecting gear (18) through a drive assembly. The output end of the main bracket (2) is connected through the interior of the connecting gear (18).

3. The dual-station lower demolding oscillating rotational molding machine with automatic secondary and tertiary material feeding as described in claim 1, characterized in that: The front side of the mounting bracket (1) is fixedly equipped with a drive motor, and the output end of the drive motor is equipped with a transmission gear (17), and the outer side of the transmission gear (17) is meshed with a half-tooth disc (16), wherein the half-tooth disc (16) is installed on the outer side of the main bracket (2).

4. The dual-station lower demolding oscillating rotational molding machine with automatic secondary and tertiary material feeding as described in claim 1, characterized in that: Hydraulic rods (15) are symmetrically arranged below the oven (3), and the two hydraulic rods (15) have the same structure. A feeding door is rotatably connected to the bottom of the two hydraulic rods (15).

5. A dual-station lower demolding oscillating rotational molding machine with automatic secondary and tertiary material feeding as described in claim 1, characterized in that: The mounting bracket (1) is positioned below a guide rail (7), and a movable frame (8) is rotatably connected above the guide rail (7) via rollers. A secondary bracket (5) is rotatably connected above the two movable frames (8), and a storage cart (6) is installed inside the secondary bracket (5).

6. A dual-station lower demolding oscillating rotational molding machine with automatic secondary and tertiary material feeding according to claim 5, characterized in that: The two movable frames (8) are equipped with drive motors, and drive gears (13) are installed at the output end of the drive motors. A rotating gear (14) is meshed with the outer side of the drive gear (13). The output end of the roller is connected through the interior of the rotating gear (14). A hook (12) is fixedly installed on the outer side of the movable frame (8), and a top seat (11) is located below the hook (12).

7. A dual-station lower demolding oscillating rotational molding machine with automatic secondary and tertiary material feeding as described in claim 6, characterized in that: The top seat (11) is slidably installed on the inner wall of the auxiliary frame (10), and the auxiliary frame (10) is fixedly installed on the inner wall of the mounting frame (1). A hydraulic cylinder (9) is fixedly installed below the auxiliary frame (10), and the top seat (11) is fixedly connected above the hydraulic cylinder (9).

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