Cooling and shaping mechanism of plastic flat filament drawing machine

Abstract

The utility model relates to a cooling and shaping mechanism of a plastic flat filament drawing machine, which comprises a cooling pond, a guide roller is arranged in the cooling pond, a cooling box is arranged above the cooling pond, a feed port and a discharge port are respectively formed at the upper end and the lower end of the cooling box, and two mounting windows are respectively arranged on two side plates in the length direction of the cooling box. An air knife inclined to the vertical surface is arranged in the mounting window, an air outlet of the air knife faces the interior of the cooling box, and a plurality of air outlet holes are formed in the side plate of the cooling box. According to the cooling and shaping mechanism of the plastic flat filament drawing machine, the continuous membrane is primarily cooled and shaped through the air knife, so that the thickness of the continuous membrane is prevented from fluctuating, the forming quality of the continuous membrane is ensured, and the forming quality of plastic flat filaments is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of wire drawing machines, in particular to a cooling and shaping mechanism of a plastic flat wire drawing machine. Background Technique

[0002] The plastic flat wire drawing machine is used for forming and producing plastic flat wires for the subsequent production of circular knitting machines. It generally includes an extrusion mechanism, a cooling and shaping mechanism, a traction mechanism, a dividing mechanism, and a winding mechanism. Among them, the cooling and shaping mechanism is used to quickly cool and shape the continuous film extruded by the extrusion mechanism. For example, the utility model patent: A plastic flat wire drawing machine (publication number: CN219686319U) discloses a wire drawing machine with a water cooling device. The water cooling device therein includes a water tank for storing cooling water and a traction roller wheel arranged in the water tank. The extrusion die head of the extrusion mechanism is arranged above the water tank, and the extruded continuous film is quickly cooled and shaped after passing through the cooling water in the water tank. However, since the die head of the extrusion mechanism generally has a certain distance from the water surface of the cooling water, part of the extruded continuous film will be exposed to the environment. This part of the continuous film in the molten state is prone to contaminating the dust in the environment, and the uncooled part in time will cause the thickness of this part of the continuous film to be uneven due to the action of gravity, resulting in fluctuations in the width of the filament during subsequent division and affecting the quality of the finished product.

[0003] In view of the above problems, the utility model is improved. Content of the Utility Model

[0004] The utility model provides a cooling and shaping mechanism of a plastic flat wire drawing machine, which solves the above problems existing in the prior art during use.

[0005] The technical solution of the utility model is realized as follows:

[0006] A cooling and shaping mechanism of a plastic flat wire drawing machine includes a cooling pool. A guiding roller is arranged in the cooling pool. A cooling box is arranged above the cooling pool. An inlet and an outlet are respectively formed at the upper and lower ends of the cooling box, and an installation window is opened on each of the two side plates in the length direction of the cooling box. An air knife inclined to the vertical plane and with an air outlet facing the inside of the cooling box is arranged in the installation window, and a plurality of air holes are opened on the side plate of the cooling box.

[0007] Preferably, it further includes a mounting frame. The cross-section of the mounting frame is in the shape of a horizontally placed U, and a mounting screw is fixedly connected to each of the two ends in the length direction of the mounting frame. The mounting screw is rotatably passed through a mounting seat formed on the outer wall of the side plate of the cooling box so that the opening of the mounting frame faces the inside of the cooling box. The air knife is arranged in the mounting frame, and a mounting nut that tightly abuts against the mounting seat is screwed on the part of the mounting screw passing through the mounting seat.

[0008] Preferably, the inner cavity height of the mounting frame matches the thickness of the air knife. An adjusting seat is formed on the air knife, and an adjusting groove that matches the adjusting seat and extends along the width direction of the mounting frame is formed on the mounting frame. The air knife is placed inside the mounting frame, the adjusting seat is placed inside the adjusting groove, and an adjusting screw rod that is screwed to the adjusting seat is rotatably arranged on the mounting frame.

[0009] Preferably, a sealing baffle made of a flexible material is arranged inside the mounting window, and the end of the sealing baffle abuts against the mounting frame.

[0010] Preferably, a sealing cushion layer made of a flexible material is arranged on the inner wall of the feed inlet.

[0011] Preferably, a water level sensor is arranged above the cooling pool. A water replenishing pipe that is communicated with the inside of the cooling pool is arranged on the cooling pool. The water replenishing pipe is connected to a water pump, and the water pump cooperates with the water level sensor.

[0012] Preferably, the cross-section of the cooling pool is in a concave shape, and a first water level port and a second water level port are opened at the upper end of the cooling pool. The cooling box is arranged inside the first water level port, and the water level sensor is arranged on one side of the second water level port.

[0013] In summary, the beneficial effects of the present utility model are as follows: The continuous film extruded from the die head passes through between the two air knives and then penetrates into the coolant. The two air knives located on both sides of the part of the continuous film that has not penetrated into the coolant work to initially cool and shape this part of the continuous film, preventing the thickness of this part of the continuous film from being uneven due to the action of gravity. Moreover, the cooling box wraps this part of the continuous film inside it, enabling this part of the continuous film to be in a relatively enclosed environment, preventing dust in the external environment from contaminating this part of the continuous film, thereby ensuring the quality of the continuous film after cooling, and further ensuring the quality of the plastic flat filaments formed in the subsequent processing and production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 is a structural schematic diagram of the present utility model;

[0016] Figure 2 is a cross-sectional schematic diagram when the present utility model is matched with the die head of a plastic flat filament drawing machine;

[0017] Figure 3 is Figure 2The enlarged schematic diagram of point A in the middle;

[0018] Figure 4 It is a structural schematic diagram of the cooling box in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the mounting frame and the wind knife in the utility model.

[0020] In the figure: 1. Cooling pool; 11. First water level port; 12. Second water level port; 13. Water supply pipe; 2. Guide roller; 3. Cooling box; 31. Feed port; 32. Discharge port; 33. Installation window; 34. Air vent; 35. Mounting seat; 36. Sealing baffle; 37. Sealing cushion layer; 38. Inspection door; 4. Wind knife; 41. Adjustment seat; 5. Mounting frame; 51. Mounting screw; 52. Mounting nut; 53. Adjustment slot; 54. Adjustment screw; 6. Water level sensor. DETAILED DESCRIPTION

[0021] The following will be combined with the attached embodiment of the present utility model Figures 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.

[0022] As shown in the figure, a cooling and shaping mechanism of a plastic flat wire drawing machine includes a cooling pool 1, a guide roller 2 is arranged in the cooling pool 1, a cooling box 3 is arranged above the cooling pool 1, a feed port 31 and a discharge port 32 are formed at the upper and lower ends of the cooling box 3, and an installation window 33 is respectively opened on the two side panels in the length direction of the cooling box 3, and a wind knife 4 inclined to the vertical plane and with the air outlet facing the inside of the cooling box 3 is arranged in the installation window 33, and a plurality of air outlet holes 34 are opened on the side panels of the cooling box 3.

[0023] Specifically, the structure in which the wind knife 4 is arranged on the installation window 33 also includes a mounting frame 5, the cross-section of the mounting frame 5 is a horizontal U-shape and a mounting screw 51 is fixedly connected to each of the two ends in the length direction of the mounting frame 5, the mounting screw 51 is rotatably passed through a mounting seat 35 formed on the outer wall of the side plate of the cooling box 3 so that the opening of the mounting frame 5 faces the interior of the cooling box 3, the wind knife 4 is arranged in the mounting frame 5, and the mounting nut 52 tightly against the mounting seat 35 is screwed on the part of the mounting screw 51 passing through the mounting seat 35.

[0024] Specifically, the structure of the air knife 4 disposed within the mounting frame 5: The inner cavity height of the mounting frame 5 matches the thickness of the air knife 4. An adjustment base 41 is formed on the air knife 4. An adjustment slot 53 that matches the adjustment base 41 and extends along the width direction of the mounting frame 5 is provided on the mounting frame 5. The air knife 4 is placed within the mounting frame 5, the adjustment base 41 is placed within the adjustment slot 53, and an adjustment screw rod 54 that is screwed onto the adjustment base 41 is rotatably provided on the mounting frame 5.

[0025] In the above structure, the feed inlet 31 of the cooling tank 3 is connected to the discharge die head of the plastic flat filament drawing machine (hereinafter referred to as the die head), that is, the die head passes through the feed inlet 31 and extends into the cooling tank 3. A coolant is injected into the cooling pool 1, and the water level of the coolant is higher than the lowest end of the cooling tank 3, so that the discharge port 32 is immersed in the coolant. The continuous film extruded by the die head passes through between the two air knives 4 and then penetrates into the coolant. After being guided by the guide roller 2, it penetrates out of the coolant. While the continuous film is continuously passing through the coolant for cooling, the two air knives 4 located on both sides of the part of the continuous film that has not penetrated into the coolant are working to perform preliminary cooling and shaping on this part of the continuous film, preventing the thickness of this part of the continuous film from being uneven due to the action of gravity. Moreover, the cooling tank 3 wraps this part of the continuous film inside it, so that this part of the continuous film is in a relatively enclosed environment, preventing dust in the external environment from adhering to this part of the continuous film, thereby ensuring the quality of the continuous film after cooling, and further ensuring the quality of the plastic flat filaments formed in the subsequent processing and production. In the above structure, the air knife 4 is disposed in the installation window 33 through the mounting frame 5. The mounting frame 5 is disposed in the installation window 33 through the cooperation of the mounting screw rod 51, the mounting seat 35, and the mounting nut 52. When the mounting nut 52 is tightened to abut against the mounting seat 35, the rotation of the mounting screw rod 51 on the mounting seat 35 is limited by the frictional force between the mounting nut 52 and the mounting seat 35, so that the mounting frame 5 is stably maintained in the installation window 33. When it is necessary to adjust the inclination angle between the air knife 4 and the continuous film to make the air flow blown by the air knife 4 better cover the part of the continuous film that has not penetrated into the coolant to achieve a better preliminary cooling and shaping effect, the mounting nut 52 can be rotated to swing the mounting frame 5. In the above structure, the air knife 4 is disposed in the mounting frame 5 through the cooperation of the adjustment base 41 and the adjustment screw rod 54. By rotating the adjustment screw rod 54, the adjustment base 41 is driven to slide within the adjustment slot 53 through the screw connection between the adjustment screw rod 54 and the adjustment base 41, and the air knife 4 is driven to slide within the mounting frame 5 along the width direction of the mounting frame 5 to adjust the distance between the air outlet of the air knife 4 and the continuous film, and cooperate with the angle adjustment of the air knife 4 to make the air flow blown by the air knife 4 better cover the part of the continuous film that has not penetrated into the coolant to achieve a better preliminary cooling and shaping effect.

[0026] Additionally, based on the above structure, a sealing baffle 36 made of flexible material is arranged in the installation window 33, and the end of the sealing baffle 36 abuts against the mounting bracket 5. Since the sealing baffle 36 has a certain flexibility, when the mounting bracket 5 swings to adjust the inclination angle of the air knife 4, the end of the sealing baffle 36 always abuts against the mounting bracket 5 to close the installation window 33. Through the action of the sealing baffle 36, the sealing performance of the cooling box 3 for the continuous diaphragm part that has not penetrated into the coolant is enhanced, better preventing the influence of dust and other impurities in the external environment on the forming of the continuous diaphragm, and ensuring the quality of the formed continuous diaphragm.

[0027] Additionally, based on the above structure, a sealing cushion layer 37 made of flexible material is arranged on the inner wall of the feed inlet 31. When the die head penetrates into the cooling box 3, the sealing cushion layer 37 abuts against the outer wall of the die head, enhancing the sealing performance between the die head and the cooling box 3, better preventing the influence of dust and other impurities in the external environment on the forming of the continuous diaphragm, and ensuring the quality of the formed continuous diaphragm.

[0028] Additionally, based on the above structure, an inspection door 38 is hinged on one side plate in the width direction of the cooling box 3, and the inspection door 38 is fastened to the cooling box 3 through fasteners such as buckles. It is convenient to inspect the air knife 4 inside the cooling box 3 through the inspection door 38.

[0029] Based on the above structure, a water level sensor 6 is arranged above the cooling pool 1. A water replenishing pipe 13 communicating with the inside of the cooling pool 1 is arranged on the cooling pool 1. The water replenishing pipe 13 is connected to a water pump (not shown in the figure). The water pump cooperates with the water level sensor 6 through a controller and the water pump is connected to a replenishing water tank filled with coolant. When the continuous diaphragm with a certain temperature passes through the coolant, the coolant will vaporize and slowly dissipate, causing the water level to drop. The drop in the water level will increase the length of the part of the die head extrusion that has not penetrated into the coolant, making the continuous diaphragm that has been initially cooled and shaped by the air knife 4 unable to penetrate into the coolant in time for deep cooling and shaping, which may lead to fluctuations in the thickness of the continuous diaphragm. By using the water level sensor 6 (an ultrasonic water level sensor 6 in this embodiment) to monitor the water level in real time, when the water level changes, the water pump cooperating with the water level sensor 6 works to send the coolant in the replenishing water tank into the cooling pool 1, keeping the water level in the cooling pool 1 stable, thereby ensuring the quality of the formed continuous diaphragm.

[0030] Additionally, based on the above-mentioned mechanism, the cross-section of the cooling pool 1 is concave-shaped, and a first water level port 11 and a second water level port 12 are opened at the upper end of the cooling pool 1. The cooling box 3 is arranged in the first water level port 11, and the water level sensor 6 is arranged on one side of the second water level port 12. After the coolant is filled into the cooling pool 1, the liquid level of the coolant is formed below the first water level port 11 and the second water level port 12, reducing the area of the liquid level and improving the accuracy when the water level changes. Thus, the water level sensor 6 and the water pump cooperate to achieve more accurate water level control.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cooling and shaping mechanism for a plastic flat wire drawing machine, comprising a cooling pool (1), wherein a guide roller (2) is arranged in the cooling pool (1), and characterized in that: A cooling box (3) is arranged above the cooling pool (1), a material inlet (31) and a material outlet (32) are formed at the upper and lower ends of the cooling box (3), and two side panels in the length direction of the cooling box (3) are each provided with an installation window (33), and a wind knife (4) inclined to a vertical plane and with an air outlet facing the interior of the cooling box (3) is arranged in the installation window (33), and a plurality of air outlet holes (34) are provided on the side panels of the cooling box (3).

2. The cooling and shaping mechanism of the plastic flat wire drawing machine according to claim 1 is characterized in that: It also includes a mounting frame (5), the cross-section of the mounting frame (5) is in a horizontal U-shape, and a mounting screw (51) is fixedly connected to each of the two ends of the mounting frame (5) in the length direction, the mounting screw (51) is rotatably passed through a mounting seat (35) formed on the outer wall of the side plate of the cooling box (3) so that the opening of the mounting frame (5) faces the interior of the cooling box (3), the wind knife is arranged in the mounting frame (5), and a mounting nut (52) that is tightly against the mounting seat (35) is screwed on the portion of the mounting screw (51) that passes through the mounting seat (35).

3. The cooling and shaping mechanism of the plastic flat wire drawing machine according to claim 2, characterized in that: The inner cavity height of the mounting frame (5) matches the thickness of the wind knife, an adjustment seat (41) is formed on the wind knife (4), and an adjustment slot (53) matching the adjustment seat (41) and extending along the width direction of the mounting frame (5) is formed on the mounting frame (5), the wind knife is placed in the mounting frame (5), the adjustment seat (41) is placed in the adjustment slot (53), and an adjustment screw (54) screwed to the adjustment seat (41) is rotatably provided on the mounting frame (5).

4. The cooling and shaping mechanism of the plastic flat wire drawing machine according to claim 3 is characterized in that: A sealing baffle (36) made of a flexible material and having an end abutting against the mounting frame (5) is arranged in the mounting window (33).

5. The cooling and shaping mechanism of the plastic flat wire drawing machine according to claim 4, characterized in that: A sealing pad layer (37) made of a flexible material is provided on the inner wall of the feed opening (31).

6. The cooling and shaping mechanism of the plastic flat wire drawing machine according to claim 1, characterized in that: A water level sensor (6) is arranged above the cooling pool (1), and a water supply pipe (13) communicating with the interior of the cooling pool (1) is arranged on the cooling pool (1). The water supply pipe (13) is connected to a water pump, and the water pump cooperates with the water level sensor (6).

7. The cooling and shaping mechanism of the plastic flat wire drawing machine according to claim 6, characterized in that: The cross section of the cooling pool (1) is concave-shaped and a first water level port (11) and a second water level port (12) are provided at the upper end of the cooling pool (1); the cooling box (3) is arranged in the first water level port (11) and the water level sensor (6) is arranged on one side of the second water level port (12).

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