Hot melt device for pc granules

Abstract

The utility model relates to PC granule hot melting technical field, concretely is a kind of PC granule's hot melting device, including material cylinder, apron and linkage shaft, the apron is connected with the screw on the material cylinder upper end outer wall, the support ring is connected with the screw on material cylinder inner wall side, the arc block of circular array distribution is welded on the support ring upper end outer wall, the inside of apron is provided with driving shaft, the linkage shaft is set up in driving shaft lower end, the first assembly plate is welded in driving shaft lower end outer wall, the second assembly plate is welded in linkage shaft upper end outer wall, the guide rod of circular array distribution is movably installed in the inside of second assembly plate, the assembling block is welded in the both sides outer wall of second assembly plate, reached the purpose of adjusting stirring rod stirring height, ensure that stirring rod can realize the PC granule of different material layer stirring, reduce stirring blind area, can improve the stirring uniformity and stirring efficiency of PC granule in material cylinder interior.

Description

Technical Field

[0001] This utility model relates to the field of PC particle hot-melting technology, specifically to a PC particle hot-melting device. Background Technology

[0002] PC granules typically refer to polycarbonate granules, a high-molecular polymer containing carbonate groups in its molecular chain. The hot-melt device for PC granules is a key piece of equipment that heats solid PC granules to a molten state for subsequent processing. Its core function is to bring the PC granules to a fluid state through controlled heating, while ensuring uniform plasticization and preventing overheating and degradation. Heating is primarily achieved through heating coils on the outside of the barrel, which melt the PC granules inside. During the melting process, a stirring rod is used to agitate the PC granules at a speed typically of 40-50 RPM to aid in ensuring uniform melting.

[0003] CN211640601U discloses a PC polycarbonate hot-melt device with quantitative feeding function, including a base and a hot-melt box. The hot-melt box is fixedly connected to the top of the base, and a discharge pipe is fixedly connected to the inner side of the bottom end face of the hot-melt box. A fixed seat is fixedly connected to the outer end face of the discharge pipe, and a baffle is slidably connected to the inner side of the fixed seat. A spring is fixedly connected to the left end of the baffle, and a fixing strip is fixedly connected to the left side of the bottom end face of the baffle. A second motor is fixedly connected to the inner side of the bottom end face of the fixed seat, and a rotating plate is fixedly connected to the end of the main shaft of the second motor. A fixing block is fixedly connected to the right side of the top end face of the rotating plate. In this utility model, through the discharge pipe, baffle, rotating plate and other components, the left and right reciprocating motion of the baffle can be realized by the rotation of the rotating plate and the elastic force of the spring, so that the baffle periodically seals the discharge pipe, thereby realizing quantitative feeding of the discharge pipe.

[0004] While the existing technology CN211640601U has many advantages in use, it still has the following problems: its mixing efficiency is not perfect, and its mixing rod can only mix a single material layer, which makes it easy for the mixing rod to have blind spots inside the barrel, affecting the uniformity and efficiency of the mixing of PC particles inside the barrel. Utility Model Content

[0005] To address the problems in the existing technology, this utility model provides a hot-melting device for PC particles.

[0006] The technical solution adopted by this utility model to solve its technical problem is a hot-melting device for PC granules, including a material cylinder, a cover plate, and a linkage shaft. The cover plate is screwed to the upper outer wall of the material cylinder, and a support ring is screwed to one side of the inner wall of the material cylinder. The upper outer wall of the support ring is welded with arc-shaped blocks distributed in a circular array. A drive shaft is provided inside the cover plate, and a linkage shaft is provided at the lower end of the drive shaft. A first assembly plate is welded to the lower outer wall of the drive shaft, and a second assembly plate is welded to the upper outer wall of the linkage shaft. A guide rod distributed in a circular array is movably installed inside the second assembly plate, and assembly blocks are welded to both outer walls of the second assembly plate.

[0007] By adopting the above technical solution, the drive shaft and the linkage shaft are connected by a first assembly plate, a second assembly plate, and a guide rod, ensuring that the linkage shaft can rotate when the drive shaft rotates. This allows the linkage shaft to stir the PC particles inside the barrel via the stirring rod. When the second assembly plate, carrying the extension rod, rotates synchronously, the roller periodically contacts the arc-shaped block. Due to the height of the arc-shaped block, when the roller passes over it, it can drive the second assembly plate to move vertically, thereby achieving the purpose of adjusting the stirring height of the stirring rod. This ensures that the stirring rod can stir PC particles in different layers, reduce the stirring blind zone, and improve the stirring uniformity and efficiency of PC particles inside the barrel.

[0008] Specifically, a heating device is provided on the outside of the material cylinder, a discharge pipe is welded to the lower outer wall of the material cylinder, and a feed pipe is welded to one side of the upper outer wall of the cover plate. Both the discharge pipe and the feed pipe are connected to the inside of the material cylinder.

[0009] By adopting the above technical solution, PC particles are fed into the cylinder through the feed pipe, and the heating device heats the cylinder to melt the PC particles inside. The stirring rod is used to stir the PC particles to ensure the uniformity of the heat melting. After the heat melting is completed, the material can be discharged in a controlled manner through the discharge valve used at the discharge pipe.

[0010] Specifically, a drive motor is provided at the upper end of the cover plate, and the output end of the drive motor is connected to the upper end of the drive shaft by a coupling.

[0011] By adopting the above technical solution, the drive motor can drive the drive shaft to rotate circumferentially through the coupling, thereby carrying the linkage shaft and stirring rod to rotate.

[0012] Specifically, the guide rod is threaded through the end of the second assembly plate and connected to the inside of the first assembly plate. A return spring is sleeved on the outside of the guide rod, and the return spring is located between the first assembly plate and the second assembly plate.

[0013] By adopting the above technical solution, the guide rod provides guidance for the relative movement of the drive shaft and the linkage shaft, ensuring that the linkage shaft moves only along the axial direction and avoiding radial offset. The elastic action of the return spring can realize the automatic reset of the linkage shaft. When the roller rolls to the highest point of the arc block, it carries the linkage shaft and the second assembly plate toward the first assembly plate and compresses the return spring. When the roller disengages from the arc block, the return spring releases its elastic force to push the assembly plate to reset, so that the linkage shaft returns to the initial position, ensuring that the linkage rod and the stirring rod can reciprocate in the vertical direction.

[0014] Specifically, the outer wall of the linkage shaft is welded with a circular array of stirring rods, and the height of the stirring rods is lower than the height of the support ring.

[0015] By adopting the above technical solution, the stirring rod is located below the support ring and can directly act on the PC particles inside the barrel, which can stir the PC particles and limit the material level inside the barrel, which is 20 centimeters lower than the support ring.

[0016] Specifically, the outer wall of the assembly block is pinned to an extension rod, and a roller is rotatably mounted at the end of the extension rod, with the roller in contact with the upper surface of the support ring.

[0017] By adopting the above technical solution, when the linkage shaft drives the extension rod and roller to rotate through the assembly block, the roller can periodically move to the outer wall of the arc block, and the linkage shaft can be driven to reciprocate up and down according to the curvature of the arc block.

[0018] The beneficial effects of this utility model are: The hot-melting device for PC granules described in this utility model involves a roller periodically contacting an arc-shaped block. Due to the height of the arc-shaped block, when the roller passes over it, it can drive the second assembly plate to move vertically, thereby achieving the purpose of adjusting the stirring height of the stirring rod. This ensures that the stirring rod can stir PC granules of different material layers, reduces the stirring blind zone, and improves the stirring uniformity and efficiency of PC granules inside the material cylinder. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the main body of the material cylinder structure of this utility model; Figure 2 This is a disassembly diagram of the cover plate structure of this utility model; Figure 3 This is an enlarged schematic diagram of the support ring structure of this utility model; Figure 4 This is a schematic diagram of the flip-up cover structure of this utility model; Figure 5This is a partially enlarged schematic diagram of the drive shaft structure of this utility model.

[0021] In the diagram: 1. Material cylinder; 11. Heating device; 12. Discharge pipe; 13. Support ring; 14. Arc block; 2. Cover plate; 21. Feed pipe; 22. Drive shaft; 23. First assembly plate; 3. Linkage shaft; 31. Second assembly plate; 32. Guide rod; 33. Return spring; 34. Assembly block; 35. Extension rod; 36. Roller; 37. Stirring rod. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the hot-melting device for PC granules of this utility model includes a material cylinder 1, a cover plate 2, and a linkage shaft 3. The cover plate 2 is screwed to the upper outer wall of the material cylinder 1, and a support ring 13 is screwed to one side of the inner wall of the material cylinder 1. The upper outer wall of the support ring 13 is welded with arc-shaped blocks 14 arranged in a circular array. A drive shaft 22 is provided inside the cover plate 2, and a linkage shaft 3 is provided at the lower end of the drive shaft 22. A first assembly plate 23 is welded to the lower outer wall of the drive shaft 22, and a second assembly plate 31 is welded to the upper outer wall of the linkage shaft 3. A guide rod 32 arranged in a circular array is movably installed inside the second assembly plate 31, and assembly blocks 34 are welded to both outer walls of the second assembly plate 31.

[0024] In use, the drive shaft 22 and the linkage shaft 3 are connected by the first assembly plate 23, the second assembly plate 31 and the guide rod 32 to ensure that the linkage shaft 3 can rotate when the drive shaft 22 rotates. Thus, the linkage shaft 3 can stir the PC particles inside the material cylinder 1 through the stirring rod 37. When the second assembly plate 31 carries the extension rod 35 and rotates synchronously, the roller 36 periodically contacts the arc block 14. When the roller 36 passes over the arc block 14 due to its height, it can drive the second assembly plate 31 to move vertically, thereby achieving the purpose of adjusting the stirring height of the stirring rod 37. This ensures that the stirring rod 37 can stir PC particles in different material layers, reduce the stirring blind zone, and improve the stirring uniformity and stirring efficiency of PC particles inside the material cylinder 1.

[0025] For example, for feeding and discharging materials, such as Figure 1As shown, a heating device 11 is provided on the outside of the material cylinder 1, a discharge pipe 12 is welded to the lower outer wall of the material cylinder 1, and a feed pipe 21 is welded to one side of the upper outer wall of the cover plate 2. Both the discharge pipe 12 and the feed pipe 21 are connected to the inside of the material cylinder 1.

[0026] In use, PC granules are fed into the cylinder 1 through the feed pipe 21, and the heating device 11 heats the cylinder 1 to melt the PC granules inside the cylinder 1. The stirring rod 37 is used to stir the PC granules to ensure the uniformity of the heat melting. After the heat melting is completed, the material can be discharged in a controlled manner through the discharge valve used at the discharge pipe 12.

[0027] To drive rotation, for example, such as Figure 2 As shown, a drive motor is provided on the upper end of the cover plate 2, and the output end of the drive motor is connected to the upper end of the drive shaft 22 by a coupling.

[0028] In use, the drive motor can drive the drive shaft 22 to rotate in a circular motion through the coupling, thereby rotating the linkage shaft 3 and the stirring rod 37.

[0029] For reciprocating movement, for example, such as Figure 5 As shown, the guide rod 32 passes through the end of the second assembly plate 31 and is threaded to the inside of the first assembly plate 23. A return spring 33 is sleeved on the outside of the guide rod 32, and the return spring 33 is located between the first assembly plate 23 and the second assembly plate 31.

[0030] In use, the guide rod 32 provides guidance for the relative movement of the drive shaft 22 and the linkage shaft 3, ensuring that the linkage shaft 3 moves only axially and avoids radial offset. The elastic action of the return spring 33 can realize the automatic reset of the linkage shaft 3. When the roller 36 rolls to the highest point of the arc block 14, it carries the linkage shaft 3 and the second assembly plate 31 toward the first assembly plate 23 and compresses the return spring 33. When the roller 36 disengages from the arc block 14, the return spring 33 releases its elastic force to push the assembly plate to reset, so that the linkage shaft 3 returns to the initial position, ensuring that the linkage rod and the stirring rod 37 can reciprocate in the vertical direction.

[0031] To mix materials, for example, such as Figure 3 As shown, the outer wall of the linkage shaft 3 is welded with a circular array of stirring rods 37, and the arrangement height of the stirring rods 37 is lower than the arrangement height of the support ring 13.

[0032] When in use, the stirring rod 37 is located below the support ring 13 and can directly act on the PC particles inside the barrel 1 to stir the PC particles. It also restricts the material level inside the barrel 1, which is 20 centimeters lower than the support ring 13.

[0033] To drive movement, for example, such as Figure 5 As shown, an extension rod 35 is pin-connected to the outer wall of the assembly block 34, and a roller 36 is rotatably mounted at the end of the extension rod 35. The roller 36 is in contact with the upper surface of the support ring 13.

[0034] When in use, the linkage shaft 3 drives the extension rod 35 and the roller 36 to rotate through the assembly block 34, which enables the roller 36 to move periodically to the outer wall of the arc block 14, and according to the curvature of the arc block 14, it can drive the linkage shaft 3 to reciprocate up and down. The upward movement of the stirring rod 37 can turn the material over.

[0035] When using this utility model, the drive motor is started, and the drive shaft 22 is rotated through the coupling. The linkage shaft 3 and the stirring rod 37 start to rotate synchronously. The heating device 11 on the outside of the material cylinder 1 is started, the target temperature is set, and PC particles are put into the material cylinder 1 through the feed pipe 21 at the upper end of the cover plate 2. The material falls naturally to the bottom of the material cylinder 1. The material level needs to be controlled below the support ring 13. The heating device 11 continuously heats the material cylinder 1 from the outside. The heat is conducted to the internal PC particles, causing them to gradually soften and melt. The linkage shaft 3 drives the stirring rod 37 to rotate, and the material is initially stirred. When the linkage shaft 3 rotates, the assembly block 34 drives the extension rod 35 and the roller 36 to roll along the surface of the support ring 13. When the roller 36 contacts the arc block 14 on the support ring 13, the roller 36 climbs upward along the arc of the arc block 14, pushing the second assembly plate 31 to move upward against the elastic force of the return spring 33. The linkage shaft 3 and the stirring rod 37 rise synchronously. After the roller 36 passes the highest point of the arc block 14, the return spring 33 releases its elastic force, pushing the second assembly plate 31 to return downward, and the stirring rod 37 falls back. As the linkage shaft 3 continues to rotate, the roller 36 periodically passes through the arc-shaped block 14, and the stirring rod 37 moves up and down reciprocally, constantly changing the stirring height and covering material layers of different depths inside the material cylinder 1. After the hot melting is completed, open the discharge valve at the discharge pipe 12, and the molten material can be discharged from the bottom of the material cylinder 1 under the action of gravity.

[0036] It should be noted that this utility model is a hot-melting device for PC particles. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hot-melting device for PC granules, characterized in that, The device includes a barrel (1), a cover plate (2), and a linkage shaft (3). The cover plate (2) is screwed to the upper outer wall of the barrel (1). A support ring (13) is screwed to one side of the inner wall of the barrel (1). A circular array of arc-shaped blocks (14) is welded to the upper outer wall of the support ring (13). A drive shaft (22) is provided inside the cover plate (2). A linkage shaft (3) is provided at the lower end of the drive shaft (22). A first assembly plate (23) is welded to the lower outer wall of the drive shaft (22). A second assembly plate (31) is welded to the upper outer wall of the linkage shaft (3). A circular array of guide rods (32) is movably installed inside the second assembly plate (31). Assembly blocks (34) are welded to both outer walls of the second assembly plate (31).

2. The hot-melting device for PC granules according to claim 1, characterized in that, A heating device (11) is provided on the outside of the material cylinder (1). A discharge pipe (12) is welded to the lower outer wall of the material cylinder (1). A feed pipe (21) is welded to one side of the upper outer wall of the cover plate (2). Both the discharge pipe (12) and the feed pipe (21) are connected to the inside of the material cylinder (1).

3. The hot-melting device for PC granules according to claim 1, characterized in that, The upper end of the cover plate (2) is provided with a drive motor, and the output end of the drive motor is connected to the upper end of the drive shaft (22) by a coupling.

4. The hot-melting device for PC granules according to claim 1, characterized in that, The guide rod (32) passes through the end of the second assembly plate (31) and is threaded into the inside of the first assembly plate (23). A reset spring (33) is sleeved on the outside of the guide rod (32), and the reset spring (33) is located between the first assembly plate (23) and the second assembly plate (31).

5. The hot-melting device for PC granules according to claim 1, characterized in that, The outer wall of the linkage shaft (3) is welded with a circular array of stirring rods (37), and the height of the stirring rods (37) is lower than the height of the support ring (13).

6. The hot-melting device for PC granules according to claim 1, characterized in that, The outer wall of the assembly block (34) is connected to an extension rod (35) by a pin. A roller (36) is rotatably mounted at the end of the extension rod (35). The roller (36) is in contact with the upper surface of the support ring (13).

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