Melting device for engineering plastic production

Abstract

The utility model discloses a melting device for engineering plastic production, which relates to the field of engineering plastic melting and comprises a melting extruder, a driving motor for providing power is arranged on one side of the melting extruder, a hopper for discharging materials is mounted at the top of the melting extruder, and a crushing mechanism is arranged on the hopper and the driving motor. The crushing mechanism comprises a crushing unit and a filtering unit; the crushing unit is used for synchronously crushing materials in the melt extrusion process, and the filtering unit is used for filtering the crushed materials. According to the utility model, by arranging the crushing mechanism, materials can be synchronously crushed through the driving motor of the melting extruder after being melted and discharged, so that the materials are smaller, the melting efficiency is improved, a driving unit is reduced, the cost is further reduced, vibration force is intermittently given to the filter screen in the crushing process, and the crushing efficiency is improved. And the crushed materials are filtered, so that impurities and dust are prevented from entering, and the product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of engineering plastics melting, specifically a melting device for engineering plastics production. Background Technology

[0002] Engineering plastics are plastics that can be used as engineering materials and to replace metals in the manufacture of machine parts. Engineering plastics have excellent comprehensive properties, high rigidity, low creep, high mechanical strength, good heat resistance, and good electrical insulation. They can be used for a long time in harsh chemical and physical environments.

[0003] In the production of engineering plastics, it is often necessary to recycle and melt old plastics for reprocessing. However, since engineering plastics vary in size, larger engineering plastics take a long time to melt. Existing melting devices cannot cut and crush the added plastics to reduce the melting time. Therefore, this utility model proposes a melting device for the production of engineering plastics. Summary of the Invention

[0004] The purpose of this utility model is to provide a melting device for the production of engineering plastics in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a melting device for engineering plastics production, including a melt extruder, a drive motor for providing power is provided on one side of the melt extruder, a material feeding hopper is installed on the top of the melt extruder, and a crushing mechanism is provided on the hopper and the drive motor;

[0006] The crushing mechanism includes a crushing unit and a filtering unit;

[0007] The crushing unit is used to simultaneously crush the material during the melt extrusion process;

[0008] The filtration unit is used to filter the crushed material.

[0009] As a further embodiment of this utility model: the crushing unit includes a conveyor belt, a first gear, a second gear, and a crushing roller;

[0010] The conveyor belt is sleeved on the outer wall of the output end of the drive motor, and the conveyor belt is used to synchronously drive the first gear to rotate.

[0011] The first gear is rotatably mounted on the outer wall of the hopper, and the first gear is used to drive the second gear to rotate.

[0012] The second gear is rotatably mounted on the outer wall of the hopper, and is used to synchronously drive a crushing roller to rotate.

[0013] As a further embodiment of this utility model: the filter unit includes a stop rod, a force-bearing rod, a screen, a guide rod, a positioning rod, and a spring;

[0014] The abutment is fixed at the axis of the second gear, and the abutment is used to intermittently provide a downward thrust to the force-bearing rod;

[0015] The force-bearing rod is fixed to the end of the screen, and the force-bearing rod is used to synchronously drive the downward movement;

[0016] The screen is vertically slidably installed inside the hopper, and the screen is used to filter the crushed material;

[0017] The guide rod is fixed to the bottom of the force-bearing rod and extends to the inner wall of the hopper. The guide rod is used to synchronously drive the positioning rod to move downward.

[0018] The positioning rod is fixed to the bottom end of the guide rod and extends into the interior of the hopper. The positioning rod is used to guide the vertical movement of the guide rod.

[0019] The two ends of the spring are respectively engaged with the inner wall of the hopper and the bottom of the guide rod, and the spring is used to provide a restoring force for the vertical movement of the guide rod.

[0020] As a further embodiment of this utility model: the outer walls of the first gear and the second gear mesh with each other, and there are two crushing rollers, which are respectively fixedly connected to the first gear and the second gear through shafts.

[0021] As a further improvement of this utility model: the length of the abutment exceeds the radius of the second gear, and the force-bearing rod is located on the rotation trajectory of the abutment.

[0022] As a further improvement of this utility model: the outer wall of the screen is inclined as a whole, and the inner wall of the hopper is formed with a groove for the guide rod to move vertically.

[0023] As a further improvement of this utility model, two guide rods are provided, and the two guide rods are respectively connected to both ends of the screen.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] By setting up a crushing mechanism, the material can be crushed synchronously by the drive motor of the melt extruder after it has been melted and fed into the machine. This results in smaller material pieces, increased melting efficiency, reduced drive units, and further reduced costs. During the crushing process, the filter screen is intermittently vibrated to filter the material and prevent impurities and dust from entering, thus improving product quality. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the crushing mechanism of this utility model;

[0028] Figure 3 This is a partial enlarged view of point A of this utility model.

[0029] In the diagram: 1. Melt extruder; 2. Drive motor; 3. Hopper; 4. Crushing mechanism; 401. Conveyor belt; 402. First gear; 403. Second gear; 404. Crushing roller; 405. Push rod; 406. Force rod; 407. Screen; 408. Guide rod; 409. Positioning rod; 410. Spring. Detailed Implementation

[0030] 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.

[0031] Please see Figures 1-3 In this embodiment of the present invention, a melting device for engineering plastic production includes a melt extruder 1, a drive motor 2 for providing power is provided on one side of the melt extruder 1, a material feeding hopper 3 is installed on the top of the melt extruder 1, and a crushing mechanism 4 is provided on the hopper 3 and the drive motor 2.

[0032] Crushing mechanism 4 includes a crushing unit and a filtering unit;

[0033] The crushing unit is used to crush materials simultaneously during the melt extrusion process;

[0034] The filtration unit is used to filter crushed materials;

[0035] The crushing unit includes a conveyor belt 401, a first gear 402, a second gear 403, and a crushing roller 404;

[0036] The conveyor belt 401 is sleeved on the outer wall of the output end of the drive motor 2, and the conveyor belt 401 is used to synchronously drive the first gear 402 to rotate.

[0037] The first gear 402 is rotatably mounted on the outer wall of the hopper 3, and the first gear 402 is used to drive the second gear 403 to rotate.

[0038] The second gear 403 is rotatably mounted on the outer wall of the hopper 3. The second gear 403 is used to synchronously drive a crushing roller 404 to rotate.

[0039] The filter unit includes a push rod 405, a force-bearing rod 406, a screen 407, a guide rod 408, a positioning rod 409, and a spring 410;

[0040] The stop rod 405 is fixed at the axial position of the second gear 403, and the stop rod 405 is used to intermittently provide the force rod 406 with a downward thrust.

[0041] The force-bearing rod 406 is fixed to the end of the screen 407, and the force-bearing rod 406 is used to synchronously drive 407 to move downward;

[0042] The screen 407 is vertically slidably installed inside the hopper 3. The screen 407 is used to filter the crushed material.

[0043] The guide rod 408 is fixed to the bottom of the force-bearing rod 406 and extends to the inner wall of the hopper 3. The guide rod 408 is used to synchronously drive the positioning rod 409 to move downward.

[0044] The positioning rod 409 is fixed to the bottom end of the guide rod 408 and extends into the interior of the hopper 3. The positioning rod 409 is used to provide guidance for the vertical movement of the guide rod 408.

[0045] The two ends of the spring 410 are respectively engaged with the inner wall of the hopper 3 and the bottom of the guide rod 408. The spring 410 is used to provide a restoring force for the vertical movement of the guide rod 408.

[0046] In this embodiment: When using this device, the material to be melted is placed inside the hopper 3. By starting the drive motor 2, the operation of the drive motor 2 will drive the conveyor belt 401 sleeved on the outer wall of the output end. The rotating conveyor belt 401 synchronously drives the first gear 402 to rotate, causing the second gear 403 meshing with the outer wall of the first gear 402 to rotate synchronously. Then, the second gear 403 and the first gear 402 will synchronously drive the crushing roller 404 connected to the shaft to rotate in opposite directions, thereby crushing the material on the crushing roller 404. The crushed material will fall onto the upper surface of the screen 407, where the screen 407 filters out dust and impurities from the crushed material. During the rotation of the second gear 403, the abutment rod 405 fixed on the outer wall of the second gear 403 will also rotate synchronously until the end of the abutment rod 405 contacts the upper surface of the force rod 406, giving the force rod 406 a downward push. The force, the force rod 406 synchronously drives the screen 407 and guide rod 408 to move downward. The downward moving guide rod 408 will synchronously apply the squeezing force to the spring 410. When the stop rod 405 is no longer in contact with the force rod 406, the screen 407 will also be reset under the action of the spring 410, generating vibration to prevent material from clogging the screen 407. The material will enter the melt extruder 1 through the inclined port of the screen 407. The working drive motor 2 pushes the material into the melt extruder 1 to melt the material. This reduces the number of drive units and lowers the cost. The material is crushed during the melting process, which increases the melting efficiency. It should be noted that the inside of the melt extruder 1 uses heating coils to heat and melt the material. The coils are distributed separately outside the barrel to uniformly heat and plasticize the material inside the barrel. The temperature is automatically adjusted by the instrument on the electrical cabinet.

[0047] Please refer to this carefully. Figures 1-3 The outer walls of the first gear 402 and the second gear 403 mesh with each other. There are two crushing rollers 404. The two crushing rollers 404 are fixedly connected to the first gear 402 and the second gear 403 respectively through shafts. The length of the abutment rod 405 exceeds the radius of the second gear 403. The force-bearing rod 406 is on the rotation trajectory of the abutment rod 405. The outer wall of the screen 407 is inclined. The inner wall of the hopper 3 is formed with a groove for the vertical movement of the guide rod 408. There are two guide rods 408. The two guide rods 408 are respectively connected to the two ends of the screen 407.

[0048] In this embodiment: This structure allows the material that falls on the inclined screen 407 and is crushed to automatically enter the melt extruder 1 under the action of the screen 407. The dust and impurities entering the hopper 3 will pass through the screen 407 to filter the dust and impurities, reducing the entry of dust and impurities and improving product quality.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A melting device for engineering plastics production, comprising a melt extruder (1), wherein a drive motor (2) for providing power is provided on one side of the melt extruder (1), and a material feeding hopper (3) is installed on the top of the melt extruder (1), characterized in that, Crushing mechanism (4) is installed on the hopper (3) and drive motor (2); The crushing mechanism (4) includes a crushing unit and a filtering unit; The crushing unit is used to simultaneously crush the material during the melt extrusion process; The filtration unit is used to filter the crushed material; The crushing unit includes a conveyor belt (401), a first gear (402), a second gear (403), and a crushing roller (404). The conveyor belt (401) is sleeved on the outer wall of the output end of the drive motor (2), and the conveyor belt (401) is used to synchronously drive the first gear (402) to rotate; The first gear (402) is rotatably mounted on the outer wall of the hopper (3), and the first gear (402) is used to drive the second gear (403) to rotate; The second gear (403) is rotatably mounted on the outer wall of the hopper (3), and the second gear (403) is used to synchronously drive a crushing roller (404) to rotate; The filter unit includes a push rod (405), a force-bearing rod (406), a screen (407), a guide rod (408), a positioning rod (409), and a spring (410). The push rod (405) is fixed at the axial position of the second gear (403), and the push rod (405) is used to intermittently provide a downward thrust to the force-bearing rod (406); The force-bearing rod (406) is fixed to the end of the screen (407), and the force-bearing rod (406) is used to synchronously drive the screen (407) to move downward; The screen (407) is vertically slidably installed inside the hopper (3), and the screen (407) is used to filter the crushed material; The guide rod (408) is fixed to the bottom of the force-bearing rod (406) and extends to the inner wall of the hopper (3). The guide rod (408) is used to synchronously drive the positioning rod (409) to move downward. The positioning rod (409) is fixed to the bottom end of the guide rod (408) and extends into the interior of the hopper (3). The positioning rod (409) is used to provide guidance for the vertical movement of the guide rod (408). The two ends of the spring (410) are respectively engaged with the inner wall of the hopper (3) and the bottom of the guide rod (408). The spring (410) is used to provide a restoring force for the vertical movement of the guide rod (408).

2. The melting device for engineering plastics production according to claim 1, characterized in that, The outer walls of the first gear (402) and the second gear (403) mesh with each other. There are two crushing rollers (404), and the two crushing rollers (404) are fixedly connected to the first gear (402) and the second gear (403) respectively through shafts.

3. The melting device for engineering plastics production according to claim 2, characterized in that, The length of the abutment (405) exceeds the radius of the second gear (403), and the force-bearing rod (406) is on the rotation trajectory of the abutment (405).

4. A melting device for engineering plastics production according to claim 2, characterized in that, The outer wall of the screen (407) is inclined, and the inner wall of the hopper (3) is formed with a groove for the guide rod (408) to move vertically.

5. A melting device for engineering plastics production according to claim 2, characterized in that, There are two guide rods (408), and the two guide rods (408) are respectively connected to the two ends of the screen (407).

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