Full-protection bimetallic barrel automatic centrifugal device of heavy injection molding machine

Abstract

The utility model belongs to centrifugal equipment technical field of injection molding machine belongs to the full protection bimetallic material cylinder automatic centrifugal device of heavy -duty injection molding machine is disclosed, including frame, centrifuge roller, centrifugal mechanism, translation mechanism, hoisting mechanism, centrifugal protective cover, centrifuge cooling mechanism and controller, hoisting mechanism and translation mechanism cooperation realizes the transfer of material cylinder between centrifuge roller and centrifugal mechanism, centrifugal protective cover links with the bottom of hoisting mechanism, and centrifugal protective cover includes front side baffle, rear side baffle, water cooling roof, left side blank hook and eye and right side blank hook and eye. The utility model discloses the full protection bimetallic material cylinder automatic centrifugal device of heavy -duty injection molding machine, and the centrifuge roller is directly linked with the induction heating hearth, and the material cylinder directly enters the centrifuge roller after induction heating is completed, does not need to hoist and transfer, and adds the centrifugal protective cover, and the radiant heat of material cylinder is limited in centrifugal protective cover, guarantees the reliable operation of equipment, guarantees the life safety of operating personnel.

Description

Technical Field

[0001] This utility model belongs to the technical field of centrifugal equipment for injection molding machines, specifically relating to an automatic centrifugal device for a fully protected bimetallic barrel of a heavy-duty injection molding machine. Background Technology

[0002] In the existing technology, after the bimetallic barrel of the injection molding machine is heated, it needs to be manually hoisted to the centrifuge by a crane. Since the surface temperature of the heated barrel is as high as 1100 degrees Celsius, workers need to use relevant clamps to lift it, which takes a long time. By the time the barrel starts to centrifuge, the surface temperature of the barrel has dropped significantly, which has an adverse effect on the subsequent centrifugation process.

[0003] Furthermore, in the existing technology, when centrifugally casting bimetallic barrels of heavy-duty injection molding machines with diameters ranging from 200 mm to 290 mm, the centrifugal equipment is an open design, meaning that the high-temperature barrel rotates at high speed on two centrifugal rollers without any protective measures around it. As a result, high-temperature oxide scale flies out at high speed during centrifugation, causing oxide scale to cover the area around and on the centrifuge. The flying high-temperature oxide scale can damage pipelines and burn workers. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects of the prior art and provide a fully protected bimetallic barrel automatic centrifugal device for heavy-duty injection molding machines. The centrifuge roller is directly connected to the induction heating furnace. After the barrel is induction heated, it directly enters the centrifuge roller without the need for hoisting and transportation. In addition, a centrifuge protective cover is installed to restrict the transportation and centrifugation of the high-temperature barrel within the protective cover, ensuring reliable operation of the equipment and ensuring the safety of the operators.

[0005] The technical solution to achieve the above objective is: an automatic centrifugal device for a fully protected bimetallic barrel of a heavy-duty injection molding machine, comprising a frame, a centrifugal roller conveyor, a centrifugal mechanism, a translation mechanism, a lifting mechanism, a centrifugal protective cover, a centrifugal cooling mechanism, and a controller, wherein:

[0006] The centrifuge roller conveyor and the centrifugation mechanism are arranged one in front of the other on the frame, and the centrifuge roller conveyor is driven by a roller conveyor motor;

[0007] The centrifugal mechanism includes two centrifugal rollers arranged in parallel one behind the other, and the two centrifugal rollers are driven by a centrifugal roller drive motor.

[0008] Photoelectric position detection switches are respectively installed on the left and right sides of the frame;

[0009] The translation mechanism includes a translation drive motor, a ball screw, a translation beam, and two guide rails. The two guide rails are respectively located at the top left and right sides of the frame. The left and right ends of the translation beam are slidably connected to the two guide rails. The translation drive motor is fixed on the frame. The output end of the translation drive motor is connected to the ball screw. The ball screw is connected to the middle of the translation beam. The translation drive motor drives the ball screw to rotate, thereby causing the translation beam to move back and forth along the two guide rails.

[0010] The lifting mechanism is mounted on the translation beam, and the lifting mechanism and the translation mechanism work together to realize the transfer of the material cylinder between the centrifuge roller conveyor and the centrifuge mechanism.

[0011] The centrifugal protective cover is connected to the bottom end of the lifting mechanism. The centrifugal protective cover includes a front partition, a rear partition, a water-cooled top plate, a left billet hook, and a right billet hook. The front partition and the rear partition are arranged opposite to each other. The water-cooled top plate blocks the upper opening between the front partition and the rear partition. The left billet hook and the right billet hook are arranged correspondingly in the left and right openings between the front partition and the rear partition.

[0012] The centrifuge cooling mechanism is mounted on the frame;

[0013] The roller conveyor motor, centrifugal roller drive motor, photoelectric position detection switch, translation drive motor, lifting mechanism, and centrifuge cooling mechanism communicate with the controller.

[0014] The above-mentioned fully protected bimetallic barrel automatic centrifugal device for a heavy-duty injection molding machine includes a lifting mechanism comprising a lifting drive motor, a lifting plate, and two lifting rods. The lifting drive motor is located at the top of the translation beam, and the two lifting rods are located on the left and right sides of the lifting drive motor. The lifting drive motor is connected to the two lifting rods via transmission shafts, and the bottom ends of the two lifting rods are fixed to the lifting plate. The lifting plate is located at the top of the water-cooled top plate of the centrifugal protective cover. The lifting drive motor drives the lifting rods to move up and down, thereby causing the lifting plate and the centrifugal protective cover to move up and down. The lifting drive motor communicates with the controller.

[0015] The above-mentioned fully protected bimetallic barrel automatic centrifugal device for a heavy-duty injection molding machine has two lifting rod mounting holes on the translation beam, and the two lifting rods are movably inserted into the two lifting rod mounting holes in a one-to-one correspondence.

[0016] The above-mentioned fully protected bimetallic barrel automatic centrifugal device for a heavy-duty injection molding machine includes a lifting mechanism that further comprises two lifting guide frames, which are distributed on the left and right sides. Each lifting guide frame includes a gantry frame, lifting guide rails set on the inner walls of both sides of the gantry frame, and lifting sliders set on the lifting guide rails. The gantry frame spans the outside of the translation beam, and the bottom end of the gantry frame is connected to the lifting plate. Each lifting slider is fixed together with the translation beam. When the lifting drive motor drives the lifting plate and the centrifugal protective cover to move up and down through the lifting rod, the gantry frame of the lifting guide frame also moves up and down.

[0017] The above-mentioned fully protected bimetallic barrel automatic centrifugal device for a heavy-duty injection molding machine, wherein the feed end of the centrifugal roller conveyor is connected to the induction heating furnace chamber of the barrel.

[0018] The fully protected bimetallic barrel automatic centrifugal device for heavy-duty injection molding machines of this invention has the following advantages compared with the prior art:

[0019] (1) The centrifuge roller is directly connected to the induction heating furnace. After the induction heating is completed, the material cylinder directly enters the centrifuge roller without hoisting and transportation. The intermediate interval is less than one minute. The surface of the material cylinder, especially the two ends of the material cylinder, loses less heat. During centrifugation, it can better ensure that the molten metal inside the material cylinder is uniformly solidified on the inner wall of the material cylinder, and there will be no uneven thickness of the wear-resistant metal layer inside the material cylinder in the length direction.

[0020] (2) A centrifugal protective cover was installed to confine the transfer and centrifugation of the high-temperature material cylinder within the protective cover. First, it prevents radiant heat from heating the surrounding frame and precision components; second, it confines the oxide scale splashed during centrifugation inside the cover; and third, in extreme cases, if the material cylinder experiences large jumping or flying out during high-speed centrifugation, the cover will restrict the material cylinder, thus ensuring the safety of the workshop environment and workshop operators.

[0021] (3) The translation mechanism and the lifting mechanism are located above the entire equipment, resulting in a compact overall structure that occupies less space. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the fully protected bimetallic barrel automatic centrifugal device for heavy-duty injection molding machines according to this utility model;

[0023] Figure 2 This is a schematic diagram of the installation of the centrifuge protective cover;

[0024] Figure 3 This is the electrical schematic diagram of the fully protected bimetallic barrel automatic centrifugal device for heavy-duty injection molding machines according to this utility model;

[0025] Figure 4This is a schematic diagram showing the hot material being conveyed from the cylinder to the centrifugal roller conveyor.

[0026] Figure 5 A schematic diagram illustrating the lifting mechanism for raising the hot material cylinder;

[0027] Figure 6 A schematic diagram of a translation mechanism that moves a hot feed cylinder to a centrifugal position;

[0028] Figure 7 A schematic diagram showing the placement of the hot material cylinder on the centrifugal roller to facilitate the descent of the lifting mechanism;

[0029] Figure 8 A schematic diagram illustrating how the lifting mechanism raises the centrifuged material cylinder.

[0030] Figure 9 A schematic diagram of a translation mechanism that moves the centrifuged material cylinder to the roller conveyor position;

[0031] Figure 10 A schematic diagram showing the process of placing the centrifuged material cylinder onto the centrifuge roller conveyor to facilitate the lowering of the lifting mechanism. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of this utility model, its specific embodiments are described in detail below with reference to the accompanying drawings:

[0033] Please see Figure 1 , Figure 2 and Figure 3 The preferred embodiment of this utility model is an automatic centrifugal device for a fully protected bimetallic barrel of a heavy-duty injection molding machine, comprising a frame 5, a centrifugal roller conveyor 1, a centrifugal mechanism 2, a translation mechanism 7, a lifting mechanism 8, a centrifugal protective cover 3, a centrifugal cooling mechanism 4, and a controller 10.

[0034] Centrifuge roller conveyor 1 and centrifuge mechanism 2 are arranged one in front of the other on the frame 5. Centrifuge roller conveyor 1 is driven by roller conveyor motor 11. Centrifuge mechanism 2 includes two centrifuge rollers 21 arranged in parallel one in front of the other. The two centrifuge rollers 21 are driven by centrifuge roller drive motor 22. The torque of centrifuge roller drive motor 22 is determined by the rotational inertia of the material cylinder and the centrifuge rollers. Photoelectric position detection switches 6 are respectively arranged on the left and right sides of the frame 5.

[0035] The translation mechanism 7 includes a translation drive motor 71, a ball screw 72, a translation beam 73, and two guide rails 74. The two guide rails 74 are respectively located at the top of the left and right sides of the frame 5. The left and right ends of the translation beam 73 are slidably connected to the two guide rails 74. The translation drive motor 71 is fixed on the frame 5. The output end of the translation drive motor 71 is connected to the ball screw 72. The ball screw 72 is connected to the middle of the translation beam 73. The translation drive motor 71 drives the ball screw 72 to rotate, thereby causing the translation beam 73 to move back and forth along the two guide rails 74.

[0036] The lifting mechanism 8 is mounted on the translation beam 73. The lifting mechanism 8 and the translation mechanism 73 work together to realize the transfer of the material cylinder 100 between the centrifuge roller conveyor 1 and the centrifuge mechanism 2.

[0037] The centrifugal protective cover 3 is connected to the bottom of the lifting mechanism 8. The centrifugal protective cover 3 includes a front partition 31, a rear partition 32, a water-cooled top plate 33, a left billet hook 34, and a right billet hook. The front partition 31 and the rear partition 32 are arranged opposite to each other. The water-cooled top plate 33 blocks the upper opening between the front partition 31 and the rear partition 32. The left billet hook 34 and the right billet hook are arranged correspondingly in the left and right openings between the front partition 31 and the rear partition 32. The front partition 31, the rear partition 32, the water-cooled top plate 33, the left billet hook 34, and the right billet hook form a semi-enclosed centrifugal protective cover 3. The heated material cylinder is transferred and centrifuged at high speed in the centrifugal protective cover 3 at the bottom of the lifting mechanism 8.

[0038] The centrifuge cooling mechanism 4 is mounted on the frame 5 and is used to cool the entire device. The centrifuge cooling mechanism 4 can be a conventional cooling mechanism found on injection molding machine centrifuge units. The centrifuge cooling mechanism 4 ensures that critical parts of the equipment are not deformed by heat, and the operating temperature of critical components does not exceed 100 degrees Celsius.

[0039] The roller conveyor motor 11, the centrifugal roller drive motor 22, the photoelectric position detection switch 6, the translation drive motor 71, the lifting mechanism 8, and the centrifuge cooling mechanism 4 communicate with the controller 10.

[0040] The lifting mechanism 8 includes a lifting drive motor 81, a lifting plate 82, and two lifting rods 83. The lifting drive motor 81 is located at the top of the translation beam 73, and the two lifting rods 83 are located on the left and right sides of the lifting drive motor 81. The lifting drive motor 81 is connected to the two lifting rods 83 via drive shafts, and the bottom ends of the two lifting rods 83 are fixed to the lifting plate 82. The lifting plate 82 is fixed to the top of the water-cooled top plate 33 of the centrifugal protective cover 3. The lifting drive motor 81 drives the lifting rods 83 to move up and down, thereby moving the lifting plate 82 and the centrifugal protective cover 3 up and down. The lifting drive motor 81 communicates with the controller 10. To reduce weight, the lifting plate 82 can be designed in sections.

[0041] Two lifting rod mounting holes are provided on the translation beam 73, and two lifting rods 83 are movably inserted into the two lifting rod mounting holes in a corresponding manner. The lifting rods 83 move up and down within the corresponding lifting rod mounting holes.

[0042] Furthermore, the lifting mechanism 8 also includes two lifting guide frames 85, which are distributed on the left and right sides. Each lifting guide frame 85 includes a gantry frame 851, lifting guide rails 852 set on the inner walls of both sides of the gantry frame, and lifting sliders 853 set on the lifting guide rails. The gantry frame 851 spans the outside of the translation beam 73, and the bottom end of the gantry frame 851 is connected to the lifting plate 82. Each lifting slider 853 is fixed together with the translation beam 73. When the lifting drive motor 81 drives the lifting plate 82 and the centrifugal protective cover 3 to move up and down through the lifting rod 83, the gantry frame 851 of the lifting guide frame also moves up and down. The gantry frame 851, the lifting slider 853 and the lifting guide rail 852 cooperate to play a guiding role.

[0043] The feed end of the centrifuge roller conveyor 1 is connected to the induction heating furnace chamber of the material cylinder.

[0044] This utility model discloses a fully protected bimetallic barrel automatic centrifugal device for heavy-duty injection molding machines. During operation, before the barrel 100 is officially centrifuged, the unheated barrel to be processed is first placed on the centrifuge roller conveyor 1. The photoelectric position detection switch 6 is adjusted to ensure that the barrel stops at the correct position on the centrifuge roller conveyor 1. Then, the upper and lower limits of the lifting mechanism and the front and rear limits of the translation mechanism are adjusted. A fully automatic test with cold material is then performed to ensure that the barrel to be processed is in the correct position. In the initial state, the lifting mechanism is located directly above the centrifuge roller conveyor 1 and is at the lower limit. The two blank hooks are located at the lowest end and inserted into the gap of the roller assembly of the centrifuge roller conveyor 1.

[0045] Please see Figures 4 to 7 At the start of production, the feed cylinder 100, with a temperature of 1100 degrees Celsius, is fed out from the induction heating furnace and advances to the centrifuge roller conveyor 1 (see...). Figure 4 The roller conveyor motor 11 drives the roller group of the centrifuge roller conveyor 1 to rotate, causing the material cylinder to continue moving forward. The photoelectric position detection switch 6 detects that the material cylinder has stopped in the correct position and sends feedback information to the controller 10. The controller 10 controls the lifting drive motor 81 to work based on the feedback information from the photoelectric position detection switch 6. The lifting drive motor 81 drives the lifting rod 83 to move upward, which in turn drives the lifting plate 82 and the centrifuge protective cover 3 to move upward. The two ends of the material cylinder 100 are hooked in the left billet hook ring 34 and the right billet hook ring of the centrifuge protective cover 3, thereby lifting the material cylinder 100 (see...). Figure 5Then, controller 10 controls translation drive motor 71 to work, translation drive motor 71 drives ball screw 72 to rotate, driving translation beam 73 to move backward along two guide rails 74 to move lifting mechanism 8, centrifugal protective cover 3 and material cylinder 100 to the centrifugal position (see Figure 6 Then, controller 10 controls lifting drive motor 81 to work, lifting drive motor 81 drives lifting rod 83 to move downward, lifting mechanism lowers material cylinder 100 until material cylinder 100 contacts centrifugal roller 21, lifting mechanism continues to lower until the two billet hooks (left billet hook 34 and right billet hook) disengage from material cylinder 100 (see...). Figure 7 Then, the controller 10 controls the centrifugal roller drive motor 22 to work, and the centrifugal roller drive motor 22 drives the two centrifugal rollers 21 to rotate at high speed for centrifugation.

[0046] Please see Figures 8 to 10 After the centrifugation process is completed, the controller 10 controls the lifting mechanism 8 to lift the material cylinder 100 to the upper limit (see...). Figure 8 The translation mechanism 7 moves the centrifugal protective cover 3 and the material cylinder 100 to the roller conveyor position (see...). Figure 9 Then, the lifting mechanism 8 lowers the material cylinder 100 until it contacts the roller group of the centrifuge roller conveyor 1. The lifting mechanism 8 continues to lower until the two billet hooks (left billet hook 34 and right billet hook) disengage from the material cylinder 100 (see...). Figure 10 Then, the roller motor 11 drives the roller group of the centrifuge roller 1 to rotate, which drives the material cylinder 100 to continue moving until it moves to the subsequent heat preservation furnace roller.

[0047] After the material cylinder is completely delivered to the roller conveyor of the heat preservation furnace, the roller conveyor motor 11 stops, waiting for the induction heating furnace to send out the next material cylinder.

[0048] This utility model discloses a fully protected automatic centrifugal device for bimetallic barrels in heavy-duty injection molding machines. It is primarily designed for centrifugal casting of injection molding machine barrels with diameters ranging from 200 mm to 290 mm. The maximum weight of the injection molding machine barrel to be centrifuged can reach 4 tons, and the maximum length can reach 4 meters. For injection molding machine barrels of different diameters, the device is equipped with a position detection switch 6. For blanks of the same diameter, only the feeding position, left and right limits of the translation mechanism, and upper and lower limits of the lifting mechanism need to be calibrated once. In practical use, this equipment can adapt to centrifugal processes of various barrel specifications within the specified range, achieving a greater degree of automation and saving labor costs. The equipment is easy to adjust and is more adaptable to bimetallic barrel production lines with different processes.

[0049] This invention relates to a fully protected bimetallic barrel automatic centrifugal device for heavy-duty injection molding machines. The high-temperature barrel is confined within a centrifugal protective cover 3. The protective cover 3 has heat insulation plates on the front and back sides, a water-cooled copper plate on the top, and billet hooks on the left and right sides. When centrifuging at 1100 degrees Celsius in the bimetallic barrel, the centrifugation time can reach nearly forty minutes. This protective cover 3 confines the radiant heat of the barrel within the cover, and the oxide scale splashed during centrifugation is also contained within the cover. The impact of the barrel's radiant heat on the surrounding frame, guide rails, motor, etc., during centrifugation is very limited, ensuring reliable equipment operation. Even in extreme cases where the high-temperature barrel experiences large fluctuations or even flies out during centrifugation, the protective cover structure is the first point of impact, ensuring the safety of the operators.

[0050] The centrifuge roller conveyor 1 is directly connected to the induction heating furnace. After induction heating, the material cylinder directly enters the centrifuge roller conveyor without the need for hoisting or transfer. The intermediate interval is less than one minute, resulting in minimal temperature loss on the cylinder surface. The 4-ton material cylinder rotates at high speed on the centrifuge rollers, confining the high-temperature cylinder to a semi-enclosed area, greatly reducing external radiant heat leakage. Handheld thermometer testing of key components confirms the effectiveness of relevant heat insulation measures; the temperature of water-cooled components does not exceed 100 degrees Celsius. After mass production, the material cylinders undergo slicing and inspection, revealing uniform internal metal layer thickness and a high pass rate.

[0051] In summary, the fully protected bimetallic barrel automatic centrifugal device for heavy-duty injection molding machines of this utility model has a centrifuge roller conveyor directly connected to the induction heating furnace. After the barrel is induction heated, it directly enters the centrifuge roller conveyor without the need for hoisting and transportation. In addition, a centrifuge protective cover is installed to confine the radiant heat of the barrel within the centrifuge protective cover, ensuring reliable operation of the equipment and guaranteeing the safety of the operators.

[0052] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any changes or modifications to the above embodiments within the scope of the essential spirit of the present utility model will fall within the scope of the claims of the present utility model.

Claims

1. An automatic centrifugal device for a fully protected bimetallic barrel of a heavy-duty injection molding machine, characterized in that, Includes a frame, centrifuge roller conveyor, centrifugation mechanism, translation mechanism, lifting mechanism, centrifuge protective cover, centrifuge cooling mechanism, and controller, among which: The centrifuge roller conveyor and the centrifugation mechanism are arranged one in front of the other on the frame, and the centrifuge roller conveyor is driven by a roller conveyor motor; The centrifugal mechanism includes two centrifugal rollers arranged in parallel one behind the other, and the two centrifugal rollers are driven by a centrifugal roller drive motor. Photoelectric position detection switches are respectively installed on the left and right sides of the frame; The translation mechanism includes a translation drive motor, a ball screw, a translation beam, and two guide rails. The two guide rails are respectively located at the top left and right sides of the frame. The left and right ends of the translation beam are slidably connected to the two guide rails. The translation drive motor is fixed on the frame. The output end of the translation drive motor is connected to the ball screw. The ball screw is connected to the middle of the translation beam. The translation drive motor drives the ball screw to rotate, thereby causing the translation beam to move back and forth along the two guide rails. The lifting mechanism is mounted on the translation beam, and the lifting mechanism and the translation mechanism work together to realize the transfer of the material cylinder between the centrifuge roller conveyor and the centrifuge mechanism. The centrifugal protective cover is connected to the bottom end of the lifting mechanism. The centrifugal protective cover includes a front partition, a rear partition, a water-cooled top plate, a left billet hook, and a right billet hook. The front partition and the rear partition are arranged opposite to each other. The water-cooled top plate blocks the upper opening between the front partition and the rear partition. The left billet hook and the right billet hook are arranged correspondingly in the left and right openings between the front partition and the rear partition. The centrifuge cooling mechanism is mounted on the frame; The roller conveyor motor, centrifugal roller drive motor, photoelectric position detection switch, translation drive motor, lifting mechanism, and centrifuge cooling mechanism communicate with the controller.

2. The fully protected bimetallic barrel automatic centrifugal device for a heavy-duty injection molding machine according to claim 1, characterized in that, The lifting mechanism includes a lifting drive motor, a lifting plate, and two lifting rods. The lifting drive motor is located at the top of the translation beam, and the two lifting rods are located on the left and right sides of the lifting drive motor. The lifting drive motor is connected to the two lifting rods via transmission shafts, and the bottom ends of the two lifting rods are fixed to the lifting plate. The lifting plate is located at the top of the water-cooled top plate of the centrifugal protective cover. The lifting drive motor drives the lifting rods to move up and down, thereby causing the lifting plate and the centrifugal protective cover to move up and down. The lifting drive motor communicates with the controller.

3. The fully protected bimetallic barrel automatic centrifugal device for a heavy-duty injection molding machine according to claim 2, characterized in that, The translation beam has two lifting rod mounting holes, and the two lifting rods are movably inserted into the two lifting rod mounting holes in a corresponding manner.

4. The fully protected bimetallic barrel automatic centrifugal device for a heavy-duty injection molding machine according to claim 2, characterized in that, The lifting mechanism also includes two lifting guide frames, which are distributed on the left and right. Each lifting guide frame includes a gantry frame, lifting guide rails set on the inner walls of both sides of the gantry frame, and lifting sliders set on the lifting guide rails. The gantry frame spans the outside of the translation beam, and the bottom end of the gantry frame is connected to the lifting plate. Each lifting slider is fixed together with the translation beam. When the lifting drive motor drives the lifting plate and the centrifugal protective cover to move up and down through the lifting rod, the gantry frame of the lifting guide frame also moves up and down.

5. The fully protected bimetallic barrel automatic centrifugal device for a heavy-duty injection molding machine according to claim 1, characterized in that, The feed end of the centrifuge roller conveyor is connected to the induction heating furnace chamber of the material cylinder.

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