Cooling device for plastic particle production

Abstract

The utility model relates to a cooling device for plastic particle production, which comprises a rack, a conveying belt arranged on the rack and a cooling fan positioned above the conveying belt, and further comprises a feeding mechanism comprising a feeding box and a stirring impeller, the feeding box is arranged on the machine frame and located above the open end of the conveying belt, a material storage cavity with an opening in the upper end and a material stirring cavity with an opening in the lower end are formed in the feeding box, the material stirring cavity is communicated with the material storage cavity, the material stirring cavity is cylindrical, and the material stirring impeller is composed of a wheel shaft and a plurality of blades connected to the wheel shaft and arranged in an annular array. And the wheel shaft is rotationally arranged in the material stirring cavity and is in transmission connection with a first motor arranged on the feeding box, so that the end parts of the material stirring blades are in contact with the inner wall of the material stirring cavity. According to the cooling device for plastic particle production, plastic particles are quantitatively conveyed to the conveying belt through the feeding mechanism, so that the plastic particles are uniformly dispersed on the conveying belt, accumulation of the plastic particles is reduced, the plastic particles are uniformly cooled, and the cooling effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic particle production equipment, in particular to a cooling device used for plastic particle production. Background Art

[0002] After being processed and formed, the plastic particles have a high temperature, and need to be cooled and shaped by a cooling device in order to proceed to the next production process. In the prior art, the device for cooling the plastic particles generally adopts a structure of a conveyor belt and a fan to cool the plastic particles. After the previously processed and formed plastic particles fall onto the conveyor belt, they are conveyed by the conveyor belt and pass under the fan. The cold air blown by the fan cools the plastic particles. However, in this cooling device, since the amount of plastic particles falling onto the conveyor belt per unit time cannot be controlled, the plastic particles are easily accumulated after falling onto the conveyor belt, resulting in uneven and incomplete cooling of the plastic particles accumulated in the middle, affecting the cooling effect.

[0003] In view of the above problems, the present invention makes improvements. Utility Model Content

[0004] The utility model provides a cooling device for the production of plastic particles, which solves the above-mentioned problems existing in the prior art during use.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A cooling device for producing plastic particles comprises a frame, on which a conveyor belt and a cooling fan located above the conveyor belt are arranged, and a feeding mechanism, wherein the feeding mechanism comprises a feeding box and a material-discharging impeller, wherein the feeding box is arranged on the frame above the start end of the conveyor belt and a storage cavity with an upper end opening and a material-discharging cavity with a lower end opening are formed in the feeding box, wherein the material-discharging cavity is connected to the storage cavity and is cylindrical, wherein the material-discharging impeller comprises an axle and a plurality of blades connected to the axle in a ring array, wherein the axle is rotatably arranged in the material-discharging cavity and is transmission-connected to a first motor arranged on the feeding box, so that an end of the material-discharging blade contacts an inner wall of the material-discharging cavity.

[0007] Preferably, the feed box is liftably arranged on the frame.

[0008] Preferably, a sliding plate is fixedly connected to each side of the feed box, a plurality of linear slide rails are vertically arranged on the frame and are located on both sides of the feed box, the sliding plate is fixedly connected to the sliding seat of the linear slide rail, a transmission seat is fixedly connected to the sliding plate, and a transmission screw rod which is screwed in the transmission seat and is transmission-connected to a second motor arranged on the frame is rotatably arranged on the frame.

[0009] Preferably, the feed box is fixedly connected with an inclined material guide plate located at the opening of the material diverting cavity.

[0010] Preferably, the frame is provided with a leveling plate located between the feeding mechanism and the cooling fan and above the conveyor belt, and a material passing gap is formed at the lower end of the leveling plate between the conveyor belt.

[0011] Preferably, two guide rods located on both sides of the screed plate are vertically arranged on the frame, two ends of the screed plate are respectively penetrated on the guide rods, and the screed plate is screwed with adjusting bolts that pass through the screed plate and are tightly pressed against the guide rods.

[0012] Preferably, two cooling fans are arranged side by side along the conveying direction of the conveyor belt, and two material shifting racks are fixedly connected to the frame and are respectively located below the two cooling fans. The material shifting rack has a plurality of material shifting rods arrayed in a direction perpendicular to the conveying direction of the conveyor belt and in contact with the conveyor belt at the lower end, and the material shifting rods on the two material shifting racks are staggered in the conveying direction of the conveyor belt.

[0013] Preferably, two material baffles located on both sides of the conveyor belt are fixedly connected to the frame.

[0014] To sum up, the beneficial effect of the utility model is that the plastic particles placed in the discharge chamber are quantitatively transferred to the lower end opening of the discharge chamber through the rotation of the material-discharging impeller and fall onto the conveyor belt. The plastic particles are evenly dispersed on the conveyor belt in coordination with the conveying of the conveyor belt, thereby reducing the accumulation of plastic particles on the conveyor belt and making the plastic particles more evenly and fully cooled by the cooling fan, thereby ensuring the cooling effect of the plastic particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art 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 paying creative labor.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of another perspective of the utility model;

[0018] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0019] Figure 4 It is a cross-sectional schematic diagram of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the feeding mechanism in the utility model.

[0021] In the figure: 1. frame; 2. conveyor belt; 3. cooling fan; 4. feeding mechanism; 41. feeding box; 411. storage chamber; 412. material discharging chamber; 42. material discharging impeller; 421. axle; 422. blade; 43. first motor; 44. sliding plate; 45. linear slide rail; 47. transmission screw; 48. second motor; 49. material guide plate; 51. leveling plate; 52. material gap; 53. guide rod; 54. adjusting bolt; 6. material discharging rack; 61. material discharging rod; 7. material blocking plate. DETAILED DESCRIPTION

[0022] The following will be combined with the attached embodiment of the present utility model Figure 1-5 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

[0023] As shown in the figure, a cooling device for producing plastic particles includes a frame 1, on which a conveyor belt 2 and a cooling fan 3 located above the conveyor belt 2 are arranged, and also includes a feeding mechanism 4, the feeding mechanism 4 includes a feeding box 41 and a material-discharging impeller 42, the feeding box 41 is arranged on the frame 1 and is located above the opening of the conveyor belt 2, and a storage chamber 411 with an upper opening and a material-discharging chamber 412 with a lower opening are formed in the feeding box 41, the material-discharging chamber 412 is communicated with the storage chamber 411 and the material-discharging chamber 412 is cylindrical, the material-discharging impeller 42 is composed of a wheel shaft 421 and a plurality of blades 422 connected to the wheel shaft 421 in a ring array, the wheel shaft 421 is rotatably arranged in the material-discharging chamber 412 and is transmission-connected to a first motor 43 arranged on the feeding box 41, so that the end of the material-discharging blade 422 contacts the inner wall of the material-discharging chamber 412.

[0024] In the above embodiment, the plastic particles formed after the previous production are placed in the storage chamber 411 through the upper end opening of the storage chamber 411, and the plastic particles entering the storage chamber 411 fall into the material-shifting chamber 412, are blocked by the blades 422, and are placed between adjacent blades 422. The first motor 43 drives the shaft to rotate and drives the blades 422 to rotate in the material-shifting chamber 412. During the rotation of the blades 422, the ends of the blades 422 always keep in contact with the inner wall of the storage chamber. As the blades 422 rotate, the plastic particles placed between the adjacent blades 422 are moved in the material-shifting chamber 412 toward the lower end of the material-shifting chamber 412 under the movement of the blades 422. The plastic particles are transferred through the opening and fall onto the conveyor belt 2 through the opening of the lower end of the material-dispensing cavity 412 when transferred to the lower end of the material-dispensing cavity 412, thereby realizing the loading of plastic particles. Since the space formed by the adjacent blades 422 and the inner wall of the material-dispensing cavity 412 is constant, the amount of single plastic particle transfer realized by the rotation of the blades 422 is also constant. The plastic particles are evenly distributed on the conveyor belt 2 in coordination with the conveying of the conveyor belt 2, thereby reducing the accumulation of plastic particles on the conveyor belt 2, so that the plastic particles that fall onto the conveyor belt 2 and pass under the cooling fan 3 with the conveyor belt 2 can be evenly and fully cooled, thereby ensuring the cooling effect of the plastic particles.

[0025] Furthermore, the feed box 41 is movably mounted on the frame 1 .

[0026] Specifically, a sliding plate 44 is fixedly connected to each side of the feed box 41, and a plurality of linear slide rails 45 are vertically arranged on the frame 1 and located on both sides of the feed box 41. The sliding plate 44 is fixedly connected to the sliding seat of the linear slide rail 45, and a transmission seat is fixedly connected to the sliding plate 44. A transmission screw 47 is rotatably arranged on the frame 1 and is screwed in the transmission seat and is transmission-connected to a second motor 48 arranged on the frame 1.

[0027] In the above preferred embodiment, the second motor 48 drives the transmission screw 47 to rotate and drives the sliding plate 44 to slide longitudinally on the linear slide rail 45 through the transmission seat, so as to adjust the height of the feed box 41 and adjust the distance between the lower end opening of the material-discharging chamber 412 and the conveyor belt 2, so as to better match the conveying speed of the conveyor belt 2 and evenly distribute the plastic particles falling from the lower end of the material-discharging chamber 412 onto the conveyor belt 2, thereby reducing the accumulation of plastic particles on the conveyor belt 2.

[0028] Preferably, the feed box 41 is fixedly connected to a tilted guide plate 49 located at the opening of the material dispensing cavity 412, and the guide plate 49 guides the plastic particles falling toward the conveyor belt 2 through the lower end opening of the material dispensing cavity 412, so that the plastic particles can be more evenly distributed on the conveyor belt 2.

[0029] Furthermore, the frame 1 is provided with a screed plate 51 located between the feeding mechanism 4 and the cooling fan 3 and above the conveyor belt 2 , and a material passing gap 52 is formed at the lower end of the screed plate 51 between the conveyor belt 2 .

[0030] Specifically, two guide rods 53 are vertically arranged on the frame 1 and located on both sides of the screed plate 51. The two ends of the screed plate 51 are respectively penetrated on the guide rods 53, and the screed plate 51 is screwed with adjustment bolts 54 that pass through the screed plate 51 and are tightly against the guide rods 53.

[0031] In the above preferred embodiment, the height of the feed gap 52 is greater than the size of one plastic particle but smaller than the size of two plastic particles. The plastic particles that fall onto the conveyor belt 2 through the feeding mechanism 4 will pass through the feed gap 52 before entering under the cooling fan 3. When the plastic particles pass through the feed gap 52, the screed plate 51 will smooth the plastic particles accumulated on the conveyor belt 2 and make the plastic particles dispersed in a single layer, so that the plastic particles can be cooled more evenly and fully by the cooling fan 3 to ensure the cooling effect. The height of the screed plate 51 can be adjusted by loosening the adjusting screw to make the screed plate 51 slide on the guide rod 53, thereby adjusting the height of the feed gap 52 to match the plastic particles of different sizes and have better applicability.

[0032] Furthermore, two cooling fans 3 are arranged side by side along the conveying direction of the conveyor belt 2, and two material shifting racks 6 are fixedly connected to the frame 1 and are respectively located below the two cooling fans 3. The material shifting racks 6 have a plurality of material shifting rods 61 arranged in an array in a direction perpendicular to the conveying direction of the conveyor belt 2 and in contact with the conveyor belt 2 at the lower end. The material shifting rods 61 on the two material shifting racks 6 are staggered in the conveying direction of the conveyor belt 2.

[0033] In the above preferred embodiment, when the plastic particles falling onto the conveyor belt 2 pass under the first cooling fan 3 and are cooled, the material shifting rod 61 on the first shifting rack shifts the plastic particles to cause the plastic particles to flip for the first time on the conveyor belt 2, so that the plastic particles are cooled more evenly and fully. When the plastic particles continue to be transported forward with the conveyor belt 2 and pass under the second cooling fan 3, the shifting rod on the second shifting rack moves the plastic particles to cause the plastic particles to flip for the second time on the conveyor belt 2, so that the plastic particles are cooled more evenly and fully. Moreover, since the material shifting rods 61 on the two material shifting racks 6 are staggered in the conveying direction of the conveyor belt 2, the plastic particles on the conveyor belt 2 can be fully shifted and flipped, thereby cooperating with the two cooling effects of the two cooling fans 3 to achieve a better cooling effect.

[0034] Preferably, two baffle plates 7 located on both sides of the conveyor belt 2 are fixedly connected to the frame 1, and the baffle plates 7 prevent the plastic particles from scattering from the conveyor belt 2 when the conveyor belt 2 is moved by the material moving rod 61.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cooling device for producing plastic particles, comprising a frame (1), a conveyor belt (2) and a cooling fan (3) located above the conveyor belt (2) being arranged on the frame (1), characterized in that: The machine also comprises a feeding mechanism (4), the feeding mechanism (4) comprising a feeding box (41) and a material-discharging impeller (42); the feeding box (41) is arranged on the frame (1) and is located above the beginning of the conveyor belt (2); a material storage chamber (411) with an upper opening and a material-discharging chamber (412) with a lower opening are formed in the feeding box (41); the material-discharging chamber (412) is communicated with the material storage chamber (411) and is cylindrical; the material-discharging impeller (42) is composed of a wheel shaft (421) and a plurality of blades (422) connected to the wheel shaft (421) and arranged in an annular array; the wheel shaft (421) is rotatably arranged in the material-discharging chamber (412) and is transmission-connected to a first motor (43) arranged on the feeding box (41), so that the end of the material-discharging blade (422) contacts the inner wall of the material-discharging chamber (412).

2. A cooling device for plastic particle production according to claim 1, characterized in that: The feed box (41) is arranged on the frame (1) in a liftable manner.

3. A cooling device for plastic particle production according to claim 2, characterized in that: A sliding plate (44) is fixedly connected to each side of the feed box (41); a plurality of linear slide rails (45) are vertically arranged on the frame (1) and are located on both sides of the feed box (41); the sliding plate (44) is fixedly connected to a sliding seat of the linear slide rail (45); a transmission seat is fixedly connected to the sliding plate (44); a transmission screw rod (47) is rotatably arranged on the frame (1) and is screwed into the transmission seat and is transmission-connected to a second motor (48) arranged on the frame (1).

4. A cooling device for plastic particle production according to claim 3, characterized in that: The feed box (41) is fixedly connected to a tilted material guide plate (49) located at the opening of the material diverting cavity (412).

5. A cooling device for plastic particle production according to claim 1, characterized in that: The frame (1) is provided with a leveling plate (51) located between the feeding mechanism (4) and the cooling fan (3) and above the conveyor belt (2), and a material passing gap (52) is formed between the lower end of the leveling plate (51) and the conveyor belt (2).

6. A cooling device for plastic particle production according to claim 4, characterized in that: Two guide rods (53) are vertically arranged on the frame (1) and are located on both sides of the screed plate (51). The two ends of the screed plate (51) are respectively penetrated through the guide rods (53), and the screed plate (51) is screwed with an adjustment bolt (54) that passes through the screed plate (51) and is tightly against the guide rods (53).

7. A cooling device for plastic particle production according to claim 1, characterized in that: Two cooling fans (3) are arranged side by side along the conveying direction of the conveyor belt (2); two material shifting racks (6) are fixedly connected to the frame (1) and are respectively located below the two cooling fans (3); the material shifting racks (6) have a plurality of material shifting rods (61) arranged in an array in a direction perpendicular to the conveying direction of the conveyor belt (2) and the lower ends of the material shifting rods (61) are in contact with the conveyor belt (2); the material shifting rods (61) on the two material shifting racks (6) are staggered in the conveying direction of the conveyor belt (2).

8. A cooling device for plastic particle production according to claim 7, characterized in that: Two material blocking plates (7) located on both sides of the conveyor belt (2) are fixedly connected to the frame (1).

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