Plastic master batch forming device

Abstract

The utility model belongs to the technical field of master batch forming, and particularly relates to a plastic master batch forming device which comprises a screw extruder and a cooling bin placed at the discharge end of the screw extruder, and a flow guide assembly is fixed to the side, close to the discharge end of the screw extruder, in the cooling bin. Two material rubbing plates are slidably mounted in the cooling bin and located at the discharging end of the flow guide assembly, and a material rubbing cavity is formed between the opposite faces of the two material rubbing plates. According to the plastic master batch forming device, when the rotating strip rotates, one material rubbing plate moves towards one side through the push-pull strip, the other material rubbing plate moves towards the other side, even if the two material rubbing plates move in the opposite directions, particles passing through the interior of the material rubbing cavity are rubbed, the sticky particles can be rubbed open, and the forming efficiency of the plastic master batch is improved. The particles are not sticky and are in full contact with water for cooling, so that the cooling effect on the particles is ensured, the cooling is full and uniform, the stress distribution in the particles is uniform, and the quality of the master batch is improved.

Description

Technical Field

[0001] This utility model relates to the field of masterbatch molding technology, and in particular to a plastic masterbatch molding device. Background Technology

[0002] In the plastics processing industry, the molding of plastic masterbatch is a crucial step, directly affecting the quality and performance of the final product. The basic process of masterbatch molding involves extruding molten plastic masterbatch, cutting it into pellets, and then dropping the pellets into a cooling water chamber. Through the convection heat transfer of the water, the pellets are rapidly cooled and solidified, facilitating subsequent storage, transportation, and processing.

[0003] When the high-temperature masterbatch is cut into granules, the granules, still at a high surface temperature, tend to stick together as they fall into the cooling water chamber. When the granules fall into the water, the insulating layer formed on the sticky granule surface hinders heat exchange between the water and the granule's interior. The sticky parts cannot fully contact the water, resulting in a slow temperature drop inside the granules. In some cases, the surface may have cooled and solidified while the interior remains at a high temperature, severely impacting heat transfer efficiency and causing poor cooling in this area. This not only prolongs the overall cooling time and reduces production efficiency but may also lead to uneven stress distribution within the granules, increasing the risk of product cracking, deformation, and other quality problems. Utility Model Content

[0004] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0005] Specifically, the technical problem to be solved by this utility model is to provide a plastic masterbatch molding device to solve the current technical problem that the particles stick together and cannot be fully cooled.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A plastic masterbatch forming apparatus includes a screw extruder and a cooling chamber placed at the pellet discharge end of the screw extruder. A flow guiding component is fixed inside the cooling chamber and on one side near the discharge end of the screw extruder. Two rubbing plates are slidably installed inside the cooling chamber and at the discharge end of the flow guiding component. A rubbing cavity is formed between the opposing surfaces of the two rubbing plates.

[0008] The drive assembly includes two movable ends of the cooling chamber that are fixedly connected to the opposite end faces of two material rubbing plates. The drive assembly includes two shaft frames welded to the inner wall of the screw extruder. An installation shaft is rotatably mounted between the two shaft frames. A rotating strip is sleeved on the installation shaft and located between the two shaft frames. Two push-pull strips are rotatably mounted at both ends of the rotating strip between the two material rubbing plates.

[0009] As an improved technical solution, two guide rails are fixed on the opposite end faces of the two material feeding plates, and a slider is slidably installed on the guide rails, and the slider is fixed inside the screw extruder.

[0010] As an improved technical solution, both ends of the rotating bar are rotatably mounted with rotating shafts, and the end of the push-pull bar near the rotating bar is rotatably connected to the rotating shaft. A shaft block is welded to the middle of the end face of the material rubbing plate near the push-pull bar, and the shaft block is rotatably connected to the end of the push-pull bar away from the rotating bar.

[0011] As an improved technical solution, a gear is sleeved on one end of the mounting shaft, a rack is meshed on the gear, a slider two is fixed on the side of the rack away from the gear, a guide rail two is slidably mounted on the slider two, and a driving body is fixed on the top of the rack.

[0012] As an improved technical solution, the driving body includes a drive motor fixed to the screw extruder via a frame, and a lifting rod fixed to the top of the rack. A rotating disk is installed on the driving end of the drive motor. A drive bar is rotatably installed on the outer edge of the rotating disk away from the drive motor via a rotating shaft. Two shaft blocks are fixed to the top of the lifting rod, and the end of the drive bar near the lifting rod is rotatably installed between the two shaft blocks.

[0013] As an improved technical solution, the flow guiding assembly includes a ramp seat installed inside the screw extruder. Both sides of the top inclined end of the ramp seat are fixed with baffles. A baffle is welded between the two baffles near the end of the material rubbing plate, and the bottom of the baffle is located at the top of the upper material rubbing plate.

[0014] As an improved technical solution, a baffle bar is welded to one end of the baffle one near the baffle two, and the baffle bar is located inside the material rubbing chamber. There are two baffle bars, which are located on both sides of the material rubbing chamber respectively.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are:

[0016] 1. In this utility model, the two baffles, one and two, serve to guide and limit the masterbatch, ensuring that the masterbatch can only enter the rubbing chamber when it falls into the screw extruder. This ensures that the freshly cut masterbatch is 100% rubbed open inside the rubbing chamber. At the same time, two baffles are installed on both sides of the rubbing chamber to block the masterbatch and prevent the particles from falling into the rubbing chamber midway. This ensures that the particles are completely rubbed and discharged from the outlet of the rubbing chamber.

[0017] 2. In this utility model, when the rotating bar rotates, it causes one rubbing plate to move to one side and the other rubbing plate to move to the other side via the push-pull bar. Even though the two rubbing plates move in opposite directions, they rub and wash the particles passing through the rubbing chamber. This can separate the sticky particles, making them no longer sticky and allowing them to fully contact the water for cooling. This ensures a good cooling effect on the particles, and the cooling is sufficient and uniform. It also ensures that the internal stress distribution of the particles is uniform, thus improving the quality of the masterbatch. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a schematic diagram of the overall structure of a plastic masterbatch molding device according to the present invention.

[0020] Figure 2 This is a cross-sectional view of the cooling chamber of a plastic masterbatch molding device according to this utility model.

[0021] Figure 3 This is a schematic diagram of the drive assembly and the rubbing plate of a plastic masterbatch molding device according to this utility model.

[0022] Figure 4 This is a schematic diagram of the rotating disk of a plastic masterbatch molding device according to the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Screw extruder; 2. Cooling chamber; 3. Flow guide assembly; 31. Inclined seat; 32. Baffle one; 33. Baffle two; 34. Baffle bar; 4. Drive assembly; 41. Shaft bracket; 42. Mounting shaft; 43. Gear; 44. Rack; 45. Slider two; 46. Guide rail two; 47. Rotating bar; 48. Push-pull bar; 49. Shaft block one; 410. Lifting rod; 411. Drive motor; 412. Rotary disk; 413. Drive bar; 414. Shaft block two; 5. Material rubbing plate; 51. Slider one; 52. Guide rail one. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] like Figures 1 to 4 As shown in the figure, this embodiment provides a plastic masterbatch molding device. This plastic masterbatch molding device includes a screw extruder 1 and a cooling chamber 2 placed at the pellet discharge end of the screw extruder 1. A flow guiding component 3 is fixed inside the cooling chamber 2 and on the side near the discharge end of the screw extruder 1. Two rubbing plates 5 are slidably installed inside the cooling chamber 2 and at the discharge end of the flow guiding component 3. A rubbing cavity is formed between the opposite surfaces of the two rubbing plates 5, and the rubbing cavity is connected to the discharge end of the flow guiding component 3.

[0028] The two movable ends of the drive assembly 4 and the cooling chamber 2 are fixedly connected to the opposite end faces of the two rubbing plates 5. The drive assembly 4 includes two shaft frames 41 welded to the inner wall of the screw extruder 1. An installation shaft 42 is rotatably installed between the two shaft frames 41. A rotating strip 47 is sleeved on the installation shaft 42 and located between the two shaft frames 41. Two push-pull strips 48 are rotatably installed at both ends of the rotating strip 47 between the two rubbing plates 5.

[0029] like Figures 1 to 3 As shown in the figure, in this embodiment, two guide rails 52 are fixed on the opposite end faces of the two material feeding plates 5, and a slider 51 is slidably installed on the guide rails 52, and the slider 51 is fixed inside the screw extruder 1.

[0030] like Figures 2 to 3 As shown in the figure, in this embodiment, both ends of the rotating bar 47 are rotatably mounted with a rotating shaft, and the end of the push-pull bar 48 near the rotating bar 47 is rotatably connected to the rotating shaft. The material rubbing plate 5 is welded with a shaft block 49 at the middle of the end face near the push-pull bar 48, and the shaft block 49 is rotatably connected to the end of the push-pull bar 48 away from the rotating bar 47.

[0031] like Figure 3As shown, in this embodiment, a gear 43 is sleeved on one end of the mounting shaft 42, a rack 44 is meshed on the gear 43, a slider 45 is fixed on the side of the rack 44 away from the gear 43, a guide rail 46 is slidably mounted on the slider 45, and the guide rail 46 is fixed inside the screw extruder 1, and a drive body is fixed on the top of the rack 44.

[0032] like Figures 3 to 4 As shown in the figure, in this embodiment, the driving body includes a drive motor 411 fixed to the screw extruder 1 via a frame, and a lifting rod 410 fixed to the top of the rack 44. A rotating disk 412 is installed on the driving end of the drive motor 411. A drive bar 413 is rotatably installed on the outer edge of the rotating disk 412 away from the drive motor 411 via a rotating shaft. Two shaft blocks 414 are fixed to the top of the lifting rod 410, and the end of the drive bar 413 near the lifting rod 410 is rotatably installed between the two shaft blocks 414.

[0033] When the particles enter the rubbing chamber, the drive motor 411 drives the rotating disk 412 to rotate. The rotating disk 412 drives the drive bar 413 to rotate and drives the lifting rod 410 to move reciprocally up and down, thereby driving the rack 44 to move reciprocally up and down. Under the meshing transmission action of the rack 44 and 13, the mounting shaft 42 drives the rotating bar 47 to rotate in the forward and reverse directions. When the rotating bar 47 rotates, it causes one rubbing plate 5 to move to one side and the other rubbing plate 5 to move to the other side through the push-pull bar 48. Even though the two rubbing plates 5 move in opposite directions, they rub and wash the particles that have passed through the rubbing chamber. This can rub the sticky particles apart, so that the particles are not sticky and can fully contact the water to cool down. This ensures that the cooling effect of the particles is sufficient and uniform, ensuring that the internal stress distribution of the particles is uniform and improving the quality of the masterbatch.

[0034] like Figures 1 to 2 As shown in the figure, in this embodiment, the flow guiding component 3 includes a ramp seat 31 installed inside the screw extruder 1, and the ramp seat 31 is located on the side of the rubbing plate 5 near the screw extruder 1. Both sides of the top inclined end of the ramp seat 31 are fixed with baffles 32. A baffle 33 is welded between the two baffles 32 near the end of the rubbing plate 5, and the bottom of the baffle 33 is located at the top of the upper rubbing plate 5. With the baffles 32 and 33 serving to limit and guide the masterbatch, the masterbatch can only enter the rubbing chamber through the guide when it falls into the screw extruder 1, ensuring that the freshly cut masterbatch is 100% rubbed open inside the rubbing chamber.

[0035] like Figure 2As shown, in this embodiment, a baffle 34 is welded to one end of the baffle 32 near the baffle 33, and the baffle 34 is located inside the rubbing chamber. There are two baffles 34, which are located on both sides of the rubbing chamber. The two baffles 34 installed on both sides of the rubbing chamber block the masterbatch, preventing the particles from falling into the rubbing chamber midway, so that the particles are completely rubbed and discharged from the outlet of the rubbing chamber.

[0036] During operation, the pelletized masterbatch falls into the screw extruder 1. As it enters the screw extruder 1, the masterbatch is guided downhill by the inclined surface of the ramp seat 31, accelerating its entry into the material-rolling chamber. The two baffles 32 and 33 act as guides and limit the movement of the masterbatch, ensuring that it only enters the material-rolling chamber after being guided into the screw extruder 1.

[0037] When the particles enter the rubbing chamber, the drive motor 411 drives the rotating disk 412 to rotate. The rotating disk 412 drives the drive bar 413 to rotate and drives the lifting rod 410 to move back and forth, thereby driving the rack 44 to move back and forth. Under the meshing transmission of the rack 44 and 13, the mounting shaft 42 drives the rotating bar 47 to rotate in the forward and reverse directions. When the rotating bar 47 rotates, it causes one rubbing plate 5 to move to one side and the other rubbing plate 5 to move to the other side through the push-pull bar 48. Even though the two rubbing plates 5 move in opposite directions, they rub the particles that have passed through the rubbing chamber and can rub the sticky particles apart.

[0038] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A plastic masterbatch molding device, characterized in that: Includes a screw extruder (1) and a cooling chamber (2) placed at the discharge end of the screw extruder (1). A flow guide assembly (3) is fixed inside the cooling chamber (2) and on one side near the discharge end of the screw extruder (1). Two rubbing plates (5) are slidably installed inside the cooling chamber (2) and at the discharge end of the flow guide assembly (3). A rubbing cavity is formed between the opposing surfaces of the two rubbing plates (5). The drive assembly (4) has two movable ends of the cooling chamber (2) fixedly connected to the opposite end faces of the two rubbing plates (5). The drive assembly (4) includes two shaft frames (41) welded to the inner wall of the screw extruder (1). An installation shaft (42) is rotatably installed between the two shaft frames (41). A rotating strip (47) is sleeved on the installation shaft (42) and located between the two shaft frames (41). Two push-pull strips (48) are rotatably installed between the two rubbing plates (5) at both ends of the rotating strip (47).

2. The plastic masterbatch molding device according to claim 1, characterized in that: Two guide rails (52) are fixed on opposite end faces of the two material rubbing plates (5). A slider (51) is slidably installed on the guide rail (52), and the slider (51) is fixed inside the screw extruder (1).

3. The plastic masterbatch molding device according to claim 2, characterized in that: Both ends of the rotating bar (47) are rotatably mounted with a rotating shaft, and the end of the push-pull bar (48) near the rotating bar (47) is rotatably connected to the rotating shaft. The material rubbing plate (5) is welded with a shaft block (49) at the middle of the end face near the push-pull bar (48), and the shaft block (49) is rotatably connected to the end of the push-pull bar (48) away from the rotating bar (47).

4. The plastic masterbatch molding device according to claim 3, characterized in that: A gear (43) is sleeved on one end of the mounting shaft (42), and a rack (44) is meshed on the gear (43). A slider (45) is fixed on the side of the rack (44) away from the gear (43). A guide rail (46) is slidably mounted on the slider (45). A drive body is fixed on the top of the rack (44).

5. A plastic masterbatch molding apparatus according to claim 4, characterized in that: The driving body includes a drive motor (411) fixed to the screw extruder (1) via a frame, and a lifting rod (410) fixed to the top of the rack (44). A rotating disk (412) is installed on the driving end of the drive motor (411). A drive bar (413) is rotatably installed on the outer edge of the rotating disk (412) away from the drive motor (411) via a rotating shaft. Two shaft blocks (414) are fixed to the top of the lifting rod (410), and the end of the drive bar (413) near the lifting rod (410) is rotatably installed between the two shaft blocks (414).

6. The plastic masterbatch molding apparatus according to claim 5, characterized in that: The flow guiding assembly (3) includes a ramp seat (31) installed inside the screw extruder (1). Both sides of the top inclined end of the ramp seat (31) are fixed with baffles (32). A baffle (33) is welded between the two baffles (32) near the end of the rubbing plate (5), and the bottom of the baffle (33) is located at the top of the upper rubbing plate (5).

7. A plastic masterbatch molding apparatus according to claim 6, characterized in that: A baffle (34) is welded to one end of the baffle (32) near the baffle (33), and the baffle (34) is located inside the material rubbing chamber. There are two baffles (34), which are located on both sides of the material rubbing chamber respectively.

Images