Granulator for engineering plastic production

Abstract

The utility model discloses a pelletizer for engineering plastic production, which relates to the field of pelletizers and comprises a plastic extruding machine, a feed opening is arranged above the plastic extruding machine, a water tank is arranged on one side of the plastic extruding machine, and a limiting mechanism is arranged on the plastic extruding machine. The limiting mechanism comprises a reset unit and a limiting unit. The limiting unit is used for providing limiting for connection of the plastic extruding machine and the discharging end plate. And the reset unit is used for passing elastic thrust in one direction for the limiting unit all the time. Through the arrangement of the limiting mechanism, when the caliber of extruded plastic needs to be changed, rotating power can be provided for the rotating wheel, and the rotating wheel synchronously drives the gear to rotate so as to provide axial moving thrust for the rack and the limiting rod, so that one end of the rack limiting rod is moved out from the inner side of a butt joint block on the discharging end plate; and therefore, limiting of the discharging end plate is relieved, the discharging end plate can be conveniently and rapidly replaced, and the working efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the field of granulators, in particular to a granulator for the production of engineering plastics. Background Art

[0002] Plastic granulator is a kind of plastic processing equipment that can process waste plastic into plastic granules. The main machine of plastic granulator is extruder.

[0003] In the prior art, when using a granulator for granulation, it is necessary to crush and melt the waste plastic, then extrude the plastic into shape through an extruder, cool the extruded strip plastic through a water tank, and cut the strip plastic through a cutter to obtain plastic granules. In order to produce plastic granules of different specifications, the extruded plastic is generally shaped by replacing the discharge ports of different calibers. In order to further improve work efficiency and facilitate the rapid replacement of the discharge ports, the utility model proposes a granulator for the production of engineering plastics. Summary of the Invention

[0004] The purpose of the present utility model is to provide a granulator for producing engineering plastics in order to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a granulator for producing engineering plastics, comprising an extruder, a feeding port is provided on the top of the extruder, a water tank is provided on one side of the extruder, and a limiting mechanism is provided on the extruder;

[0006] The limiting mechanism includes a reset unit and a limiting unit;

[0007] The limiting unit is used to provide a limit for the connection between the extruder and the discharge end plate;

[0008] The reset unit is used to always provide an elastic thrust in one direction to the limiting unit.

[0009] As a further solution of the present invention: the limiting unit includes a discharge end plate, a docking block, a rotating wheel, a gear, a rack, and a limiting rod;

[0010] The discharge end plate is installed at the end of the extruder, and is used to provide guidance for the plastic extruded inside the extruder;

[0011] The docking block is fixed to the top of the discharge end plate and extends to the interior of the extruder, and is used to provide a limiting support for the discharge end plate;

[0012] The runner is rotatably mounted on the inner wall of the extruder and extends to the outside of the extruder, and the runner is used to synchronously drive the gear to rotate;

[0013] The gear is fixed to the end of the rotating wheel, and is used to give the rack an axial thrust;

[0014] The rack is axially slidably mounted on the inner wall of the extruder and extends to the inside of a docking block, and the rack is used to synchronously drive the limit rod to move;

[0015] The limiting rod is fixed to the end of the rack and extends to the inner wall of the other docking block. The limiting rod is used to limit the lateral movement of one docking block.

[0016] As a further solution of the present invention: the reset unit includes a positioning rod and a spring;

[0017] The positioning rod is fixed to the inner wall of the extruder and passes through the rack, and the positioning rod is used to provide a guide for the axial movement of the rack;

[0018] The two ends of the spring are respectively clamped on the inner wall of the extruder and the outer wall of the rack, and the spring is used to provide an elastic thrust in one direction for the rack.

[0019] As a further solution of the present invention: the number of the docking blocks is set to two, and the two docking blocks are symmetrically distributed on the top end of the discharge end plate.

[0020] As a further solution of the present invention: the inner walls of the two docking blocks are respectively formed with limiting grooves that match the rack and the end of the limiting rod.

[0021] As a further solution of the present invention, the outer wall of the limit rod is in a "J"-shaped structure as a whole, and the inner wall of the extruder is formed with a movable space for axial movement of the rack and the limit rod.

[0022] As a further solution of the present invention, the outer wall of the gear is meshed with the outer wall tooth block of the rack, and the outer wall of one side of the discharge end plate is connected to the plastic extrusion port inside the extruder through a pipe.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] By setting up a limiting mechanism, when the caliber of the extruded plastic needs to be changed, the rotating wheel can be given a rotating force, and the rotating wheel synchronously drives the gear to rotate, thereby giving the rack and the limiting rod an axial thrust, so that one end of the rack limiting rod moves out from the inner side of the docking block on the discharge end plate, thereby releasing the limit of the discharge end plate, facilitating the rapid replacement of the discharge end plate, and further improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the utility model;

[0026] Figure 2 This is a schematic structural diagram of the limiting mechanism of the present utility model;

[0027] Figure 3 It is a schematic diagram of the docking structure of the limiting rod and the docking block of the utility model.

[0028] In the figure: 1, extruder; 2, discharge port; 3, water tank; 4, limit mechanism; 401, discharge end plate; 402, docking block; 403, runner; 404, gear; 405, rack; 406, limit rod; 407, positioning rod; 408, spring. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 3 In the embodiment of the present utility model, a granulator for producing engineering plastics includes an extruder 1, a feeding port 2 is provided above the extruder 1, a water tank 3 is provided on one side of the extruder 1, and a limiting mechanism 4 is provided on the extruder 1;

[0031] The limiting mechanism 4 includes a reset unit and a limiting unit;

[0032] The limiting unit is used to provide a limit for the connection between the extruder 1 and the discharge end plate 401;

[0033] The reset unit is used to always apply elastic thrust in one direction to the limit unit;

[0034] The limiting unit includes a discharge end plate 401, a docking block 402, a rotating wheel 403, a gear 404, a rack 405, and a limiting rod 406;

[0035] The discharge end plate 401 is installed at the end of the extruder 1 and is used to provide guidance for the plastic extruded inside the extruder 1;

[0036] The docking block 402 is fixed to the top of the discharge end plate 401 and extends into the interior of the extruder 1. The docking block 402 is used to provide position limiting support for the discharge end plate 401.

[0037] The runner 403 is rotatably mounted on the inner wall of the extruder 1 and extends to the outside of the extruder 1. The runner 403 is used to synchronously drive the gear 404 to rotate;

[0038] The gear 404 is fixed to the end of the rotating wheel 403 and is used to provide axial thrust to the rack 405;

[0039] The rack 405 is axially slidably mounted on the inner wall of the extruder 1 and extends to the interior of a docking block 402. The rack 405 is used to synchronously drive the limit rod 406 to move;

[0040] The limiting rod 406 is fixed to the end of the rack 405 and extends to the inner wall of the other docking block 402. The limiting rod 406 is used to limit the lateral movement of one docking block 402.

[0041] The reset unit includes a positioning rod 407 and a spring 408;

[0042] The positioning rod 407 is fixed to the inner wall of the extruder 1 and passes through the rack 405. The positioning rod 407 is used to provide a guide for the axial movement of the rack 405.

[0043] The two ends of the spring 408 are respectively clamped on the inner wall of the extruder 1 and the outer wall of the rack 405. The spring 408 is used to provide the rack 405 with elastic thrust in one direction at all times.

[0044] In this embodiment: when it is necessary to produce plastic particles of different calibers, the rotating wheel 403 can be given a rotational force, and the rotating wheel 403 will synchronously drive the gear 404 to rotate, so that the rack 405 meshing with the outer wall of the gear 404 is forced to move axially, and the axially moving rack 405 will move along the outer wall of the positioning rod 407 and give the spring 408 an extrusion force. At the same time, the movement of the rack 405 is synchronously brought to the axial movement of the limiting rod 406, so that the ends of the rack 405 and the limiting rod 406 are respectively moved out of the inner wall limiting grooves of the two docking blocks 402. At this time, the discharge end plate 401 can be given an outward pulling force, synchronously driving the docking block 402 to move out of the interior of the extruder 1, thereby separating the discharge end plate 401 from the extrusion channel inside the extruder 1, and the caliber of the extruded plastic can be adjusted by quickly replacing the discharge end plate 401, thereby further improving work efficiency.

[0045] Please refer to Figure 1-Figure 3 There are two docking blocks 402, which are symmetrically distributed on the top of the discharge end plate 401. The inner walls of the two docking blocks 402 are respectively formed with limiting grooves that match the ends of the rack 405 and the limiting rod 406. The outer wall of the limiting rod 406 is a "J"-shaped structure as a whole. The inner wall of the extruder 1 is formed with a movable space for axial movement of the rack 405 and the limiting rod 406. The outer wall of the gear 404 is engaged with the outer wall tooth block of the rack 405. The outer wall of one side of the discharge end plate 401 is connected to the plastic extrusion port inside the extruder 1 through a pipe.

[0046] In this embodiment: through this structure, when the rack 405 and the limiting rod 406 are subjected to the rotational thrust from the gear 404 and move axially, the limiting rod 406 with a "J"-shaped structure can move axially from the top of a docking block 402, thereby disengaging the limiting rod 406 from the internal limiting groove of a docking block 402.

[0047] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A granulator for producing engineering plastics, comprising an extruder (1), a feed port (2) being provided above the extruder (1), and a water tank (3) being provided on one side of the extruder (1), characterized in that: A limiting mechanism (4) provided on the extruder (1); The limiting mechanism (4) comprises a reset unit and a limiting unit; The limiting unit is used to provide a limit for the connection between the extruder (1) and the discharge end plate (401); The reset unit is used to always provide an elastic thrust in one direction to the limiting unit.

2. A granulator for producing engineering plastics according to claim 1, characterized in that: The limiting unit comprises a discharge end plate (401), a docking block (402), a rotating wheel (403), a gear (404), a rack (405), and a limiting rod (406); The discharge end plate (401) is installed at the end of the extruder (1), and the discharge end plate (401) is used to provide guidance for the plastic extruded inside the extruder (1); The docking block (402) is fixed to the top of the discharge end plate (401) and extends into the interior of the extruder (1), and the docking block (402) is used to provide position limiting support for the discharge end plate (401); The rotating wheel (403) is rotatably mounted on the inner wall of the extruder (1) and extends to the outside of the extruder (1), and the rotating wheel (403) is used to synchronously drive the gear (404) to rotate; The gear (404) is fixed to the end of the rotating wheel (403), and the gear (404) is used to give the rack (405) an axial moving thrust; The rack (405) is axially slidably mounted on the inner wall of the extruder (1) and extends to the inside of a docking block (402), and the rack (405) is used to synchronously drive the limit rod (406) to move; The limiting rod (406) is fixed to the end of the rack (405) and extends to the inner wall of the other docking block (402). The limiting rod (406) is used to provide a limit for the lateral movement of one docking block (402).

3. A granulator for producing engineering plastics according to claim 2, characterized in that: The reset unit comprises a positioning rod (407) and a spring (408); The positioning rod (407) is fixed to the inner wall of the extruder (1) and passes through the rack (405), and the positioning rod (407) is used to provide guidance for the axial movement of the rack (405); The two ends of the spring (408) are respectively clamped on the inner wall of the extruder (1) and the outer wall of the rack (405), and the spring (408) is used to provide the rack (405) with an elastic thrust in one direction at all times.

4. A granulator for producing engineering plastics according to claim 2, characterized in that: The number of the docking blocks (402) is two, and the two docking blocks (402) are symmetrically distributed on the top of the discharge end plate (401).

5. A granulator for producing engineering plastics according to claim 2, characterized in that: The inner walls of the two docking blocks (402) are respectively formed with limiting grooves that match the ends of the rack (405) and the limiting rod (406).

6. A granulator for producing engineering plastics according to claim 2, characterized in that: The outer wall of the limiting rod (406) is in a "J"-shaped structure as a whole, and the inner wall of the extruder (1) is formed with a movable space for axial movement with the rack (405) and the limiting rod (406).

7. A granulator for producing engineering plastics according to claim 2, characterized in that: The outer wall of the gear (404) is meshed with the outer wall tooth block of the rack (405), and the outer wall of one side of the discharge end plate (401) is connected to the plastic extrusion port inside the extruder (1) through a pipe.

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