Circulating cooling device for plastic extruder

Abstract

The utility model discloses a circulating cooling device for a plastic extruder, and relates to the technical field of plastic extruders. The device comprises a receiving hopper, the outer surface of the receiving hopper is provided with a spraying assembly and a drying assembly, the receiving hopper is fixedly connected with a first filtering assembly, the interior of the receiving hopper is slidably connected with a water absorption assembly, the interior of the receiving hopper is fixedly connected with a pushing assembly and a second filtering assembly, and the outer surface of the water absorption assembly is provided with an adjusting assembly. And the spraying assembly is used for spraying water to cool the plastic in the hopper. Through the connection of the adjusting assembly and the water absorbing assembly, when a gap between the water absorbing assembly and the material pushing assembly is not enough for a plastic part to pass through, the adjusting assembly can be rotated to drive the water absorbing assembly to move in the material receiving hopper, so that the gap between the water absorbing assembly and the material pushing assembly is changed; therefore, the plastic parts of different sizes produced in different batches can be better adapted, the plastic parts can be automatically adjusted according to actual needs in the using process, and using is more flexible.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic extruders, and in particular relates to a circulating cooling device for a plastic extruder. Background Art

[0002] The main component of the granulating extruder is the plastic extruder, which is composed of an extrusion system, a transmission system and a heating and cooling system. After the plastic extruder extrudes the plastic and pelletizes it, the plastic needs to be cooled to form the plastic particles. Water cooling is often used to cool the plastic particles, and the cooling water is recycled after cooling.

[0003] Chinese patent CN216804064U discloses a novel circulating high-efficiency cooling device for a plastic extruder, which belongs to the field of plastic extruders. The novel circulating high-efficiency cooling device for a plastic extruder comprises a granulating extruder, wherein the discharge port of the granulating extruder is connected with a cooling inclined plate, and guard plates are fixedly connected to both sides of the cooling inclined plate, and the other end of the cooling inclined plate is fixedly connected with a water tank, the top of the water tank is inclined and opened, and a circulating cooling component is connected to the water tank and the guard plate, and a water absorption component is connected in the water tank; the water absorption component comprises two rotating shafts, two sponge sleeves and two squeezing rollers, the two rotating shafts are both rotatably connected in the water tank, the two sponge sleeves are respectively fixedly sleeved on the corresponding rotating shafts, the two rotating shafts rotate towards each other in the water tank, and the two squeezing rollers are both rotatably connected in the water tank and are arranged below the corresponding rotating shafts.

[0004] In the prior art, a large amount of moisture will remain on the surface of the plastic particles after cooling, and the subsequent drying takes a long time, resulting in low production efficiency. In the above document, the water on the plastic particles can be adsorbed so that less moisture remains on the plastic particles, reducing the time consumption of the subsequent drying process. However, when producing different batches of plastic particles, the sizes of the plastic particles are also different, and the distance between the two rotating shafts cannot be adjusted. Some larger plastic particles are easily stuck when passing through the rotating shaft, and their use has certain limitations.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] In view of the problems in the related technology, the utility model proposes a circulating cooling device for a plastic extruder to overcome the above technical problems existing in the existing related technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses a circulation cooling device for a plastic extruder, comprising a receiving hopper, the outer surface of which is provided with a spraying assembly and a drying assembly, the receiving hopper is fixedly connected with a first filtering assembly, the interior of the receiving hopper is slidably connected with a water absorbing assembly, the interior of the receiving hopper is fixedly connected with a pushing assembly and a second filtering assembly, the outer surface of the water absorbing assembly is provided with an adjusting assembly, the spraying assembly is used for spraying water to cool the plastic in the receiving hopper, the first filtering assembly and the second filtering assembly are used for separating cooling water and plastic parts, the water absorbing assembly is used for absorbing moisture on the surface of the plastic parts, the pushing assembly is used for pushing the plastic parts to contact with the water absorbing assembly, and the adjusting assembly is used for adjusting the distance between the water absorbing assembly and the pushing assembly.

[0009] Furthermore, the spray assembly includes a water tank, which is located at the bottom of the receiving hopper. A water pump is fixedly connected to the outer surface of the water tank, a diversion pipe is fixedly connected to the outer surface of the water pump, a nozzle is fixedly connected to the end of the diversion pipe, and the nozzle is fixedly connected to the inside of the receiving hopper.

[0010] Furthermore, the first filter assembly includes a first filter screen, the outer surface of the first filter screen is fixedly connected with a connecting ear, the outer surface of the connecting ear is threadedly connected with a bolt, and the first filter screen is fixedly connected to the inside of the receiving hopper through the connecting ear and the bolt.

[0011] Further, the water absorption assembly includes a first connecting seat, the first connecting seat is internally rotatably connected to a first rotating shaft and a second rotating shaft, the outer surface of the second rotating shaft is fixedly connected to a water absorption roller, the outer surface of the first rotating shaft is fixedly connected to a squeezing roller, the outer surface of the first rotating shaft is rotatably connected to the second connecting seat, the outer surface of the first rotating shaft is fixedly connected to a small gear, the outer surface of the small gear is meshed with a large gear, the large gear is fixedly connected to the second rotating shaft, and the first connecting seat and the second connecting seat are both slidably connected to the receiving hopper.

[0012] Furthermore, the pushing assembly includes a pushing motor, the pushing motor is fixedly connected to the outer surface of the receiving hopper, a third rotating shaft is fixedly connected to the output shaft of the pushing motor, and a pushing roller is fixedly connected to the outer surface of the third rotating shaft.

[0013] Furthermore, the adjustment component includes a fixed plate, which is fixedly connected to the outer surface of the receiving hopper, the interior of the fixed plate is rotatably connected to a screw, the outer surface of the screw is threadedly connected to a sliding seat, the top of the sliding seat is fixedly connected to an adjustment motor, and the output shaft of the adjustment motor is fixedly connected to the first rotating shaft.

[0014] Furthermore, the second filter assembly includes a collecting box, which is fixedly connected to the inside of the receiving hopper, and the outer surface of the collecting box is respectively fixedly connected with a connecting pipe and a second filter screen, and the connecting pipe and the water tank are interconnected.

[0015] Furthermore, the drying component includes a bracket, a conveyor belt and a heating rod are arranged inside the bracket, and the bracket is fixedly connected to the material receiving hopper.

[0016] Furthermore, a baffle is fixedly connected to the top of the receiving hopper.

[0017] The utility model has the following beneficial effects:

[0018] The utility model connects the adjusting component and the water absorbing component. When the gap between the water absorbing component and the pushing component is not enough for the plastic parts to pass through, the adjusting component can be rotated to drive the water absorbing component to move in the receiving hopper, thereby changing the gap between the water absorbing component and the pushing component, so as to better adapt to plastic parts of different sizes produced in different batches. It can be adjusted according to actual needs during use, and is more flexible to use.

[0019] 2. The utility model adjusts the connection between the motor and the first rotating shaft. When the screw is rotated to drive the adjusting motor to move, the adjusting motor can drive the first rotating shaft, the second connecting seat and the second rotating shaft to move synchronously, so that the second rotating shaft drives the water suction roller to move, and changes the distance between the water suction pipe and the pushing roller, so as to facilitate the passage of plastic parts of different sizes and avoid the jamming of plastic parts due to the small gap between the water suction roller and the pushing roller.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the utility model embodiments, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the external contour structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the back structure of the utility model;

[0024] Figure 3 For the utility model Figure 1 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 4For the utility model Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0026] Figure 5 This is a schematic diagram of the structure of the collection box of the utility model;

[0027] Figure 6 For the utility model Figure 2 A magnified schematic diagram of the structure at C in the middle;

[0028] Figure 7 This is a schematic diagram of the structure of the extrusion roller of the utility model.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1. Receiving hopper; 2. Spraying assembly; 201. Water tank; 202. Water pump; 203. Diverter pipe; 204. Sprinkler; 3. First filter assembly; 301. First filter screen; 302. Connecting ear; 303. Bolt; 4. Water absorption assembly; 401. First connecting seat; 402. First rotating shaft; 403. Second rotating shaft; 404. Water absorption roller; 405. Extrusion roller; 406. Second connecting seat; 407. First gear; 40 8. Second gear; 5. Pushing assembly; 501. Pushing motor; 502. Third rotating shaft; 503. Pushing roller; 6. Adjusting assembly; 601. Fixed plate; 602. Screw; 603. Sliding seat; 604. Adjusting motor; 7. Second filtering assembly; 701. Collecting box; 702. Connecting pipe; 703. Second filter; 8. Drying assembly; 801. Bracket; 802. Conveyor belt; 803. Heating rod; 9. Baffle. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0033] See also Figure 1-Figure 7As shown, the utility model is a circulation cooling device for a plastic extruder, comprising a receiving hopper 1, the outer surface of the receiving hopper 1 is provided with a spray component 2 and a drying component 8, the receiving hopper 1 is fixedly connected with a first filter component 3, the interior of the receiving hopper 1 is slidably connected with a water absorption component 4, the interior of the receiving hopper 1 is fixedly connected with a pusher component 5 and a second filter component 7, the outer surface of the water absorption component 4 is provided with an adjustment component 6, the spray component 2 is used to spray water to cool the plastic in the receiving hopper 1, the first filter component 3 and the second filter component 7 are used to separate cooling water and plastic parts, the water absorption component 4 is used to absorb moisture on the surface of the plastic parts, the pushing component 5 is used to push the plastic parts to contact with the water absorption component 4, and the adjustment component 6 is used to adjust the distance between the water absorption component 4 and the pushing component 5.

[0034] After the plastic enters the receiving hopper 1 from the extruder, the spray component 2 is started to spray and cool the plastic in the receiving hopper 1. When the plastic parts and cooling water slide through the first filter component 3 in the receiving hopper 1, the cooling water will pass through the first filter component 3 and fall back into the spray component 2 to realize water circulation. The plastic parts continue to move through the first filter component 3 and fall onto the pushing component 5. The pushing component 5 pushes the plastic parts to the water absorbing component 4, and the water absorbing component 4 absorbs excess water from the plastic parts. If the plastic parts cannot pass between the water absorbing component 4 and the pushing component 5, the adjusting component 6 drives the water absorbing component 4 to move and change the distance between it and the pushing component 5. The plastic parts pass through the gap between the water absorbing component 4 and the pushing component 5 and fall onto the second filter component 7. The remaining water on the plastic parts passes through the second filter component 7 and returns to the spray component 2. The plastic parts slide along the second filter component 7 to the drying component 8 for drying, thereby realizing the cooling and drying of the plastic parts.

[0035] The utility model connects the adjusting component 6 and the water absorbing component 4. When the gap between the water absorbing component 4 and the pushing component 5 is not enough for the plastic parts to pass through, the adjusting component 6 can be rotated to drive the water absorbing component 4 to move in the receiving hopper 1, thereby changing the gap between the water absorbing component 4 and the pushing component 5, so as to better adapt to plastic parts of different sizes produced in different batches. It can be adjusted according to actual needs during use, and it is more flexible to use.

[0036] In one embodiment, for the above-mentioned spray assembly 2, the spray assembly 2 includes a water tank 201, the water tank 201 is located at the bottom of the receiving hopper 1, the outer surface of the water tank 201 is fixedly connected to a water pump 202, the outer surface of the water pump 202 is fixedly connected to a diversion pipe 203, the end of the diversion pipe 203 is fixedly connected to a nozzle 204, and the nozzle 204 is fixedly connected to the inside of the receiving hopper 1.

[0037] In one embodiment, for the above-mentioned first filter component 3, the first filter component 3 includes a first filter screen 301, the outer surface of the first filter screen 301 is fixedly connected with a connecting ear 302, the outer surface of the connecting ear 302 is threadedly connected with a bolt 303, and the first filter screen 301 is fixedly connected to the inside of the receiving hopper 1 through the connecting ear 302 and the bolt 303.

[0038] Starting the water pump 202 can extract the cooling water in the water tank 201 and transport it to the diversion pipe 203. The cooling water reaches the nozzle 204 from the diversion pipe 203 and is sprayed into the hopper 1. By removing the bolts 303 in the hopper 1, the first filter 301 can be removed from the hopper 1, so that different first filters 301 can be replaced according to the size of the plastic parts.

[0039] In one embodiment, for the above-mentioned water absorption component 4, the water absorption component 4 includes a first connecting seat 401, the first connecting seat 401 is internally rotatably connected to a first rotating shaft 402 and a second rotating shaft 403, the outer surface of the second rotating shaft 403 is fixedly connected to a water absorption roller 404, the outer surface of the first rotating shaft 402 is fixedly connected to a squeezing roller 405, the outer surface of the first rotating shaft 402 is rotatably connected to a second connecting seat 406, the outer surface of the first rotating shaft 402 is fixedly connected to a small gear 407, the outer surface of the small gear 407 is meshed with a large gear 408, the large gear 408 is fixedly connected to the second rotating shaft 403, and the first connecting seat 401 and the second connecting seat 406 are both slidably connected to the receiving hopper 1.

[0040] The first rotating shaft 402 drives the small gear 407 and the squeezing roller 405 to rotate, and the small gear 407 engages with the large gear 408 to drive the second rotating shaft 403 and the water-absorbing roller 404 to rotate. During the rotation, the water-absorbing roller 404 is continuously squeezed by the squeezing roller 405, and the water in the water-absorbing roller 404 can be squeezed out. Through the setting of the first connecting seat 401 and the second connecting seat 406, the first connecting seat 401 and the second connecting seat 406 can drive the first rotating shaft 402 and the second rotating shaft 403 to move simultaneously, so as to facilitate the adjustment of the position.

[0041] In one embodiment, for the above-mentioned pushing assembly 5, the pushing assembly 5 includes a pushing motor 501, the pushing motor 501 is fixedly connected to the outer surface of the receiving hopper 1, the output shaft of the pushing motor 501 is fixedly connected to a third rotating shaft 502, and the outer surface of the third rotating shaft 502 is fixedly connected to a pushing roller 503.

[0042] In one embodiment, for the above-mentioned adjustment component 6, the adjustment component 6 includes a fixed plate 601, the fixed plate 601 is fixedly connected to the outer surface of the receiving hopper 1, the internal rotation of the fixed plate 601 is connected to a screw 602, the outer surface of the screw 602 is threadedly connected to a sliding seat 603, the top of the sliding seat 603 is fixedly connected to an adjustment motor 604, and the output shaft of the adjustment motor 604 is fixedly connected to the first rotating shaft 402.

[0043] The screw 602 is rotated, and the screw 602 drives the sliding seat 603 to move. The sliding seat 603 drives the adjusting motor 604 to move. The adjusting motor 604 drives the first rotating shaft 402 and the second connecting seat 406 to move. The second connecting seat 406 drives the water-absorbing roller 404 to move so that it changes the distance between it and the pushing roller 503. The pushing motor 501 is started to drive the third rotating shaft 502 and the pushing roller 503 to rotate. The pushing roller 503 can push the plastic part close to the water-absorbing roller 404, so that the water-absorbing roller 404 absorbs excess water from the surface of the plastic part.

[0044] In one embodiment, for the above-mentioned second filter component 7, the second filter component 7 includes a collecting box 701, and the collecting box 701 is fixedly connected to the inside of the receiving hopper 1. The outer surface of the collecting box 701 is respectively fixedly connected with a connecting pipe 702 and a second filter screen 703, and the connecting pipe 702 is interconnected with the water tank 201.

[0045] In one embodiment, for the above-mentioned drying component 8, the drying component 8 includes a bracket 801, a conveyor belt 802 and a heating rod 803 are arranged inside the bracket 801, and the bracket 801 is fixedly connected to the receiving hopper 1.

[0046] In one embodiment, for the above-mentioned receiving hopper 1 , a baffle 9 is fixedly connected to the top of the receiving hopper 1 .

[0047] The plastic parts pass through the gap between the suction roller 404 and the push roller 503 and fall onto the second filter screen 703. The water squeezed out of the suction roller 404 passes through the second filter screen 703 and falls into the collection box 701, and flows back to the water tank 201 through the connecting pipe 702 at the bottom of the collection box 701. The plastic parts move along the second filter screen 703 to the conveyor belt 802. During the process of the conveyor belt 802 driving the plastic parts to move, the heating rod 803 above the conveyor belt 802 generates heat to dry the plastic parts.

[0048] Through the above technical solution, 1. By adjusting the connection between the water absorption component 6 and the water absorption component 4, when the gap between the water absorption component 4 and the material pushing component 5 is not enough for the plastic parts to pass through, the adjusting component 6 can be rotated to drive the water absorption component 4 to move in the receiving hopper 1, and change the gap between the water absorption component 4 and the material pushing component 5, so that it can better adapt to different batches of plastic parts of different sizes, and can be adjusted according to actual needs when used, and the use is more flexible. 2. By adjusting the connection between the motor 604 and the first rotating shaft 402, when the screw 602 is rotated to drive the adjusting motor 604 to move, the adjusting motor 604 can drive the first rotating shaft 402, the second connecting seat 406 and the second rotating shaft 403 to move synchronously, so that the second rotating shaft 403 drives the water absorption roller 404 to move, and changes the distance between the water absorption pipe 404 and the material pushing roller 503, so as to facilitate the passage of plastic parts of different sizes, and avoid the situation where the plastic parts are stuck due to the small gap between the water absorption roller 404 and the material pushing roller 503.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A circulating cooling device for a plastic extruder, comprising a receiving hopper (1), characterized in that: The outer surface of the receiving hopper (1) is provided with a spray assembly (2) and a drying assembly (8); the receiving hopper (1) is fixedly connected to a first filter assembly (3); the interior of the receiving hopper (1) is slidably connected to a water absorption assembly (4); the interior of the receiving hopper (1) is fixedly connected to a material pushing assembly (5) and a second filter assembly (7); the outer surface of the water absorption assembly (4) is provided with an adjustment assembly (6); the spray assembly (2) is used to spray water to cool the plastic in the receiving hopper (1); the first filter assembly (3) and the second filter assembly (7) are used to separate cooling water and plastic parts; the water absorption assembly (4) is used to absorb moisture on the surface of the plastic parts; the pushing assembly (5) is used to push the plastic parts to contact the water absorption assembly (4); and the adjustment assembly (6) is used to adjust the distance between the water absorption assembly (4) and the pushing assembly (5).

2. A circulating cooling device for a plastic extruder according to claim 1, characterized in that: The spray assembly (2) comprises a water tank (201), the water tank (201) being located at the bottom of the receiving hopper (1), the outer surface of the water tank (201) being fixedly connected to a water pump (202), the outer surface of the water pump (202) being fixedly connected to a diversion pipe (203), the end of the diversion pipe (203) being fixedly connected to a spray head (204), and the spray head (204) being fixedly connected to the interior of the receiving hopper (1).

3. A circulating cooling device for a plastic extruder according to claim 2, characterized in that: The first filter assembly (3) comprises a first filter screen (301), the outer surface of the first filter screen (301) being fixedly connected to a connecting ear (302), the outer surface of the connecting ear (302) being threadedly connected to a bolt (303), and the first filter screen (301) being fixedly connected to the interior of the receiving hopper (1) via the connecting ear (302) and the bolt (303).

4. A circulating cooling device for a plastic extruder according to claim 3, characterized in that: The water absorption assembly (4) comprises a first connecting seat (401), the first connecting seat (401) is internally rotatably connected to a first rotating shaft (402) and a second rotating shaft (403), the outer surface of the second rotating shaft (403) is fixedly connected to a water absorption roller (404), the outer surface of the first rotating shaft (402) is fixedly connected to a squeezing roller (405), the outer surface of the first rotating shaft (402) is rotatably connected to a second connecting seat (406), the outer surface of the first rotating shaft (402) is fixedly connected to a small gear (407), the outer surface of the small gear (407) is meshed with a large gear (408), the large gear (408) is fixedly connected to the second rotating shaft (403), and the first connecting seat (401) and the second connecting seat (406) are both slidably connected to the receiving hopper (1).

5. A circulating cooling device for a plastic extruder according to claim 4, characterized in that: The pushing assembly (5) comprises a pushing motor (501), the pushing motor (501) being fixedly connected to the outer surface of the receiving hopper (1), a third rotating shaft (502) being fixedly connected to the output shaft of the pushing motor (501), and a pushing roller (503) being fixedly connected to the outer surface of the third rotating shaft (502).

6. A circulating cooling device for a plastic extruder according to claim 5, characterized in that: The adjustment assembly (6) comprises a fixed plate (601), the fixed plate (601) being fixedly connected to the outer surface of the receiving hopper (1), the interior of the fixed plate (601) being rotatably connected to a screw rod (602), the outer surface of the screw rod (602) being threadedly connected to a sliding seat (603), the top of the sliding seat (603) being fixedly connected to an adjustment motor (604), and the output shaft of the adjustment motor (604) being fixedly connected to the first rotating shaft (402).

7. A circulating cooling device for a plastic extruder according to claim 6, characterized in that: The second filtering assembly (7) comprises a collecting box (701), the collecting box (701) being fixedly connected to the interior of the receiving hopper (1), the outer surface of the collecting box (701) being fixedly connected to a connecting pipe (702) and a second filter screen (703), respectively, the connecting pipe (702) and the water tank (201) being interconnected.

8. A circulating cooling device for a plastic extruder according to claim 7, characterized in that: The drying component (8) comprises a bracket (801), a conveyor belt (802) and a heating rod (803) are arranged inside the bracket (801), and the bracket (801) is fixedly connected to the receiving hopper (1).

9. A circulating cooling device for a plastic extruder according to claim 8, characterized in that: A baffle (9) is fixedly connected to the top of the receiving hopper (1).

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